![](media/image1.png){width="0.47638888888888886in"
height="0.5104166666666666in"}PUBLIC NOTICE

FEDERAL COMMUNICATIONS COMMISSION

445 12th STREET, S.W.

WASHINGTON, D.C. 20554 **DA 99-1364**

News media information 202/418-0500 Fax-On-Demand 202/418-2830 Internet:
http://www.fcc.gov ftp.fcc.gov

**Released: July 14, 1999**

**THE FCC\'S ADVISORY COMMITTEE FOR**

**THE 2000 WORLD RADIOCOMMUNICATION CONFERENCE**

**OFFERS ADDITIONAL DRAFT PROPOSALS**

**ON WRC-2000 ISSUES**

The WRC-2000 Advisory Committee has assisted the Commission in the
development of proposals for the World Radiocommunication Conference to
be held in the year 2000 (WRC-2000). On June 24, 1999 (its eighth
meeting), the Advisory Committee proposed further draft proposals on
issues that are to be addressed at WRC-2000.[^1] In addition, the
National Telecommunications and Information Administration\'s (NTIA)
Radio Conference Subcommittee (RCS) has submitted to the Commission
draft proposals (available on the FCC's WRC-2000 web site) that have
been developed by the Executive Branch agencies. We request comments on
all of these proposals.

Draft proposals developed by the Informal Working Groups (IWGs) of the
FCC\'s WRC-2000 Advisory Committee include: 1) spectrum and regulatory
issues for advanced mobile applications in the context of IMT-2000; 2)
power flux density (PFD) limits to allow sharing among non-geostationary
satellite orbit (NGSO) fixed-satellite service (FSS), geostationary
satellite orbit (GSO) FSS, GSO broadcasting-satellite service (BSS), and
the space sciences and terrestrial services; 3) future spectrum
requirements of the aeronautical mobile-satellite service with respect
to the Global Maritime Distress and Safety System (GMDSS); 4) relaxing
the PFD requirements in Appendix S30 for BSS in Region 1; 5) protection
of terrestrial services from NGSO satellite networks operating in the
bands between 37.5 and 42.5 GHz; 6) use of the bands 47.2-47.5 GHz and
47.9-48.2 GHz by high altitude platform stations (HAPS); 7) regulatory
text to provide a framework for earth stations operating on board
vessels in the 3700-4200 MHz and 5925-6425 MHz bands; and 8) future
conference agendas.

The complete text of all preliminary views and proposals are available
in the FCC\'s Reference Information Center, 445 12^th^ Street, S.W.,
Room CY-A257, Washington, D.C. (telephone: 202-418-0270, TTY: 418-2555)
or by accessing the FCC\'s WRC-2000 world wide web site at:
http://www.fcc.gov/wrc-00. To comment on the above draft proposals,
please submit an original and one copy of your comments to the Chief,
Planning & Negotiations Division, International Bureau, Federal
Communications Commission, 445 12th Street, SW., Washington, D.C. 20554.
Comments should refer to the above draft proposals by document number.
Parties preferring to e-mail their comments should address their
comments to: wrc-99@fcc.gov. The deadline for submitting comments is
July 30, 1999. The comments provided will be of assistance to the FCC in
its upcoming consultations with the U.S. Department of State, the NTIA,
and other government agencies for developing and updating U.S.
preliminary views. Once approved by agreement among these U.S.
Government agencies, preliminary views may be used by U.S. delegations
to stimulate discussion and feedback and to attempt to achieve common
proposals with other countries on these issues. The draft proposals set
forth herein may evolve in the course of interagency discussions and
therefore do not constitute a final U.S. Government position on these
issues.

**I. [Draft Proposals of IWG-1 (Informal Working Group on Mobile Service
Matters including IMT-2000)]{.underline}**

**A. Proposals** (WAC/113(24.06.99))

\[Note: Items marked with an asterisk did not receive full agreement
within IWG-1\]

**UNITED STATES OF AMERICA**

**\[DRAFT\] Proposals for Agenda Item 1.6.1**

**Issue:** Footnote and resolution for identifying IMT-2000 frequency
bands

**Agenda Item:** 1.6.1

Review of spectrum and regulatory issues for advanced mobile
applications in the context of IMT-2000, noting that there is an urgent
need to provide more spectrum for the terrestrial component of such
applications and that priority should be given to terrestrial mobile
spectrum needs, and adjustments to the Table of Frequency Allocations as
necessary.

**Background Information**:

IMT-2000, which can be considered the deployment of the third generation
of mobile communications, is intended to provide future public
telecommunications capable of broadband and multi-media applications.
IMT-2000 is a global communications concept being developed by both
sectors of the ITU. Although the terrestrial component of IMT-2000 will
be implemented on a national basis, seamless global roaming and a high
degree of commonality of design and compatibility of services are
considered essential attributes of IMT-2000 systems.

Studies completed by ITU-R Task Group 8/1 forecast that, by 2010, 160
MHz of spectrum may be needed for terrestrial IMT-2000 systems (see
Table 1). This requirement would be in addition to the 1 885-2 025/2
110-2 200 MHz bands already identified for FPLMTS in S5.388, and in
addition to the spectrum already implemented by administrations for
1^st^ and 2^nd^ generation systems. In the U.S., the 1^st^ and 2^nd^
generation system bands include the bands 824-849/869-894 MHz (used for
cellular telephony), 1850-1990 MHz (used for PCS), and bands at 800/900
MHz used by Enhanced SMR operations. The 1^st^ and 2^nd^ generation
system bands are natural candidates for evolution to IMT-2000 services,
assuming there is an evolution path that facilitates implementation from
pre-IMT-2000 market technology.

TABLE 1

Forecasted Terrestrial Spectrum Requirements

*Note: the figures in the table below represent the requirement in those
geographic areas where the traffic is the highest.*

+-------+--------------------+---------------------+-----------------+
| R     | Total Forecasted   | Identified Total    | Forecasted      |
| egion | Terrestrial Mobile | Terrestrial Mobile  | Additional      |
|       | Spectrum           | Spectrum\           | IMT-2000        |
|       | Requirement for    | (including RR       | Terrestrial     |
|       | the year 2010\     | S5.388 IMT‑2000     | Component       |
|       | (MHz)              | Spectrum)\          | Spectrum        |
|       |                    | (MHz)               | Requirement for |
|       |                    |                     | the year 2010\  |
|       |                    |                     | (MHz)           |
+-------+--------------------+---------------------+-----------------+
| ###   | 555                | #### 395            | 160             |
| # Reg |                    |                     |                 |
| ion 1 |                    |                     |                 |
+-------+--------------------+---------------------+-----------------+
| R     | 390                | 230                 | **160**         |
| egion |                    |                     |                 |
| 2     |                    |                     |                 |
+-------+--------------------+---------------------+-----------------+
| R     | 480                | 320                 | **160**         |
| egion |                    |                     |                 |
| 3     |                    |                     |                 |
+-------+--------------------+---------------------+-----------------+

Report ITU-R M.\[IMT.SPEC\] concluded that there is a forecasted need
for mobile-satellite spectrum as shown in Table 1. In calculating this
spectrum need, Report ITU-R M.\[IMT-SPEC\] applies the detailed
methodology provided in Recommendation ITU-R M.1391 *Methodology for the
calculation of IMT-2000 satellite spectrum requirements* to traffic
estimates on the future demand for mobile satellite communications. The
total MSS spectrum requirement is larger than that for the satellite
component of IMT-2000 alone (see Table 2).

TABLE 2

Forecasted Global Mobile Satellite Spectrum Requirements,\
including IMT-2000 Satellite Component (MHz)

Note: the figures in the table below represent the requirement in those
geographic areas where the traffic is the highest.

  --------------------------------- ------------------ ------------------
                                    **Year 2005**      **Year 2010**

  IMT-2000 (satellite               2 x 31.5           2 x 67
  component[^2])                                       

  Total MSS (IMT-2000 satellite     2 x 123            2 x 145
  component[^3] and other MSS                          
  requirements)                                        
  --------------------------------- ------------------ ------------------

In the various Regions, consideration should be given to the existing
spectrum allocated to the MSS and used by pre-IMT-2000 systems. Because
the "Total MSS" spectrum calculation includes the MSS spectrum required
for both pre‑IMT-2000 and IMT-2000 systems, a subtraction of the
existing MSS spectrum used by pre-IMT-2000 systems must be performed to
determine the additional satellite spectrum required for the IMT-2000
satellite component in the years 2005 and 2010. This subtraction has not
been done in Report ITU-R M.\[IMT-SPEC\], due to the variation across
Administrations of the spectrum allocated to the MSS and used by
pre-IMT-2000 systems.

In the US and around the world 1^st^ and 2^nd^ generation MSS systems
are being deployed in the 1.5/1.6 GHz MSS allocations. Some 2^nd^
generations MSS systems may even be deployed in the 2 GHz MSS bands
identified for IMT-2000.

Administrations may implement IMT-2000 systems in frequency bands
allocated to the mobile service and mobile satellite service. However,
since some of these bands may have constraints on the deployment of
IMT-2000 because of their use by other services, frequency bands
suitable for IMT-2000 should be identified in the Radio Regulations.
Since IMT-2000 is a global communications concept developed by the ITU,
reference to IMT-2000 in the Radio Regulations facilitates its
deployment. It would be possible that both existing bands and additional
bands could be listed in a modification to No. S5.388 and a new
Resolution. Different dates of introduction for IMT-2000 bands can be
given in the new resolution.

PROPOSAL;

**S5.388** The bands or portions thereof ~~1 885-2 025 MHz and 2 110-2
200 MHz~~ [listed below]{.underline} are intended for use, on a
worldwide basis, by administrations wishing to implement International
Mobile Telecommunications-2000 (IMT-2000). Such use does not preclude
the use of these bands by other services to which they are allocated.
The bands should be made available for IMT-2000 in accordance with
Resolution  **~~212 (Rev.WRC-97)~~ [IMT]{.underline}.**

[806-902 MHz, 1 710-1 755 MHz, 1 850-1 885 MHz, 1 885 -- 1 980 MHz, 2
110-2 160 MHz\* on a worldwide basis for the terrestrial component of
IMT-2000.]{.underline}

[1 525-1 559/1 626.5-1 660.5 MHz, 1 610-1 626.5/2 483.5-2 500 MHz,
1 990-2  010/2 170-22 00 MHz, 2500-2520/2670-2690 MHz\* (RR S5.414 and
S5.419) on a worldwide basis for the satellite component.]{.underline}

[1 755-1 850 MHz, 2 520-2 670 MHz\*, 806-902 MHz, 1 980-1 990 MHz, and 2
160-2 200 MHz on a regional or country basis for the terrestrial
component]{.underline}

[2 520-2 535/2 655-2 670 MHz (all Regions)\*, 2  010-2 025/2 160-2 170
MHz (Region 2)\*, 1 980-1 990 MHz (Regions 1 and 3) on a regional or
country basis for the satellite component.]{.underline}

**Reasons:**  To identify spectrum for IMT-2000 to facilitate consistent
deployment of IMT-2000 systems. Since WARC-92 initially identified 230
MHz of spectrum for FPLMTS, the tremendous growth in mobile
communications services and the forecasted demand for wideband
multimedia services indicate that additional frequency bands must be
identified to satisfy these requirements.

**SUP** Res. 212(Rev. WRC-97)

**REASON:** Consequential to the proposals USA/1.6.1/1 and USA/1.6.1/3.

ADD RESOLUTION IMT (WRC-2000)

International Mobile Telecommunications-2000 (IMT-2000)

The World Radiocommunication Conference (Istanbul, 2000),

considering

a)  that IMT-2000 is the ITU vision of global mobile access in the
    21^st^ century and is scheduled to start service around the year
    2000;

b)  that IMT-2000 is an advanced mobile communications concept intended
    to provide telecommunications services on a worldwide scale
    regardless of location, network or terminal used;

c)  that through integration of terrestrial mobile and mobile satellite
    systems, different types of wireless access will be provided
    globally, including services available through the fixed
    telecommunications networks and those specific to mobile users;

d)  that the bands 1 885-2 025 MHz and 2 110-2 200 MHz were identified
    by WARC-92 as intended for use on a worldwide basis by
    administrations wishing to implement International Mobile
    Telecommunications-2000 (IMT-2000) and that such use would not
    preclude the use of these bands by other services to which they are
    allocated;

e)  that ITU-R Report M.\[IMT.SPEC\] Spectrum Requirements for IMT-2000,
    forecasted an additional need for 160 MHz of spectrum on a global
    basis for the terrestrial component in the year 2010, in addition to
    the frequency bands listed in considering d);

f)  that ITU-R Report M.\[IMT.SPEC\] Spectrum Requirements for IMT-2000,
    forecasted an additional need of spectrum on a global basis for the
    satellite component of IMT-2000 as being 2 x 31.5 MHz in the year
    2005 and 2 x 67 MHz in the year 2010.

*g)* that the 160 MHz of additional terrestrial spectrum for IMT-2000
presented in the ITU-R's Draft New Report M\[IMT-SPEC\] is for
additional spectrum beyond that amount identified at WARC'92 and the
bands currently in use by cellular and PCS systems in each of the
Regions; and

*h)* that the radio specifications, as well as their various technical
characteristics, as presented in ITU Recommendations, support the
evolution of existing cellular and PCS systems to IMT-2000;

considering further

a)  that ITU is progressing in its efforts to finish development of the
    IMT-2000 concept; and

b)  that various technical approaches either exist or will soon be
    available to provide for global roaming across mobile radio systems
    that operate in different frequency bands and with different
    technical characteristics.

noting

a\) that the identification of spectrum for IMT-2000 does not convey any
status under the Radio Regulations of the ITU.

b\) that the implementation of the terrestrial component of IMT-2000,
within the bands identified, is expected to commence in some bands as
early as the year 2000, subject to market and technical considerations;
and

c)  that the implementation of the satellite component of IMT-2000, in
    the bands identified and allocated to the MSS, could commence in
    some bands as early as the year 2000, subject to market and
    technical considerations;

invites administrations

to give due consideration to the accommodation of other services
currently operating in these bands when implementing IMT-2000,

resolves

*a)* that administrations planning to implement new terrestrial mobile
radio communications services, including terrestrial IMT-2000 systems
that provide for roaming on a global basis, consider the use of the
following bands or portions thereof: existing cellular and PCS bands
within the range 806-902 MHz, 1 710-1 755 MHz, 1 850-1 885 MHz, 1 885-1
980 MHz, 2 110-2 160 MHz\*;

b)  that administrations planning to implement satellite IMT-2000
    systems on a global basis, consider the use of the following bands
    or portions thereof: 1 525-1 559/1 626.5-1 660.5 MHz, 1 610-1
    626.5/2 483.5-2 500 MHz, 1 990-2 010/2 170-2 200 MHz, and 2 500-2
    520/2 670-2 690 MHz\*;

c)  that administrations planning to implement additional terrestrial
    mobile radio communications services, including those supported on
    IMT-2000 systems on a regional/national basis, consider the use of
    the following bands or portions thereof: 1755-1850 MHz, 2520-2670
    MHz\*, 806-902 MHz, 1 980-1 990 MHz, and 2 160- 2 200 MHz;

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d)  that administrations planning to implement additional satellite
    IMT-2000 systems on a national/regional basis, consider the use of
    the following bands or portions thereof: 2 520-2 535/2 655-2 670
    MHz\* (all Regions)(RR S5.414 and S5.419) and 2 010- 2 025/2 160-2
    170 MHz\* (Region 2);

> *urges*

a)  administrations to study and consider the possible use of the
    regional/national frequency bands listed in resolves c) and d) in
    the longer term, with a view to harmonizing spectrum on a worldwide
    basis for IMT-2000 and other global telecommunication systems;

b)  administrations planning to provide for the introduction of new
    spectrum for advancing mobile radio communications systems to
    consider flexible regulatory approaches on a national level that
    will support the evolution of advancing mobile radio systems,
    including existing cellular and PCS systems and future IMT-2000
    systems, to facilitate the most rapid and cost effective
    introduction of new services and technologies as they become
    available; and

c)  administrations deploying IMT-2000 systems to use the relevant
    international technical characteristics, as identified by ITU-R and
    ITU‑T Recommendations;

**REASON:** To identify spectrum for IMT-2000 to facilitate consistent
deployment of IMT-2000 systems. Since WARC-92 initially identified 230
MHz of spectrum for FPLMTS, the tremendous growth in mobile
communications services and the forecasted demand for wideband
multimedia services indicate that additional frequency bands must be
identified to satisfy these requirements.

II. **[Draft Proposals of IWG-2 (Informal Working Group on NGSO
    Mobile-Satellite Service Below 1 GHz)]{.underline}**

(Proposals for WRC-2000 Agenda Item 7.2 were coordinated with IWG-10)

**A. Proposals for WRC-2000 Agenda Item 4 and 7.2** (These proposals are
primarily based on WAC/080(24.06.99) with minor edits incorporated from
WAC/095(24.06.99). They are being used in lieu of WAC/094(24.06.99).)

# 

# **United States of America**

**Proposal for the Work of the Conference**

**to amend Resolution 722 to add an Agenda Item**

Proposal for Agenda Item 4

"in accordance with Resolution **95 (WRC-97)**, to review the
resolutions and recommendations of previous conferences with a view to
their possible revision, replacement or abrogation;"

The proposal herein amends Resolution 127: to take account of the
current status of ITU-R studies on the compatibility of non-GSO MSS
feeder links in bands around 1.4 GHz with services in the same and
nearby bands; and to invite WRC-02/03 to include in its agenda
consideration of allocations to non-GSO MSS feeder links in bands around
1.4 GHz.

References: IWG-2/27 (Revs. 1 and 2); WRC-2000 Agenda Item 7.2;
WRC-02/03 Preliminary Agenda Item 3.5; and Doc. 8D/251 (which is based
on US WP 8D/1).

**Background**

Resolution 127, adopted at WRC-97, resolved that studies should be
carried out as a matter of urgency on the operational and technical
measures required:

i.  to facilitate sharing between feeder links for non-GSO MSS systems
    and existing and currently planned services in portions of the band
    1390-1400 MHz (Earth-to-space) and 1427-1432 MHz (space-to-Earth);
    and

ii\. to protect passive services in the band 1400-1427 MHz from unwanted
emissions from feeder links for non-GSO MSS systems;

and invited WRC-2000 or a future competent conference to consider, on
the basis of completion of the above mentioned studies, additional
allocations for feeder links on a worldwide basis for non-GSO MSS
systems with service links below 1 GHz.

However, WRC-97 did not recommend for inclusion in the preliminary
agenda for WRC-2000 consideration of studies or additional allocations
for feeder links to non-GSO MSS around 1.4 GHz. And, in fact, the agenda
for WRC-2000 does not include any such items.

WRC-97 did recommend for the preliminary agenda of WRC-02/03 an item
related to additional allocations on a worldwide basis to non-GSO MSS
for feeder links around 1.4 GHz (Item 3.5), but that item proposed only
*consideration of the results of studies* \[of operational and sharing
measures\] *with a view to considering the additional allocations
themselves at a future conference*, that is, one beyond WRC-02/03.

IWG-2/27 (Revs. 1 and 2) previously adopted by this IWG, described a
U.S. proposal for WRC-2000 to amend the Preliminary Agenda of WRC-02/03
to include consideration of the allocations themselves.

Consistent with that proposal, this present proposal would amend
Resolution 127 to have it call for this same item on the agenda of
WRC-02/03.

The rationale for including consideration of allocations to MSS feeder
links near 1.4 GHz in the agenda of WRC-02/02 is that some of the
studies referred to in Res. 127, and in the preliminary agenda for
WRC-02/03, have been completed, and that others are planned for
completion prior to the convening of WRC-02/03.

Therefore, WRC-02/03 will likely have before it the technical and
sharing measures, and sharing and compatibility studies that would
enable it to consider additional allocations around 1.4 GHz to non-GSO
MSS for feeder links.

The studies performed to date indicate that out-of-band emissions from
MSS feeder links at 1390-1393 MHz (up), and 1429-1432 MHz (down) into
the band 1400-1427 MHz, which is allocated on a primary basis
exclusively to sensitive, passive science services, can be reduced
through the use of highly efficient modulation methods such as GMSK, and
through careful design, which will keep intermodulation products out of
that neighboring band.

Those studies now have a certain measure of acceptance from the science
services themselves (Doc. ITU-R 8D/251). The current or remaining
concerns of these services \-- Radio Astronomy, Earth
exploration-satellite (passive), and Space Research (passive) \-- are
whether the results indicated by theory and preliminary measurement and
testing can be achieved throughout the life of operational spacecraft.
It is these latter tests, among others, that are planned to be available
before WRC-02/03 convenes.

If the additional tests and measurements are persuasive, but the item
was not previously put on the agenda of WRC-02/03 by WRC-2000, then the
conference would not be competent to consider those allocations.

If the additional tests and measurements that would be conducted between
now and the convening of WRC-02/03 are not persuasive, and the item is
on its agenda, then WRC-02/-3 would not, in its good judgment, make any
such allocations, even though it was competent to do so. In other words,
putting the item on the preliminary agenda of WRC-02/03 is both
foresighted and \"fail- safe.\"

**Preliminary View**

This proposal is consistent with the current Preliminary View of the
U.S.:

> It is anticipated that studies will be sufficiently advanced or
> completed, prior to WRC-2000, so that the U.S. may be in a position to
> request modification to agenda items 3 and 3.5 of WRC-02/03. These
> modifications could be to ask for consideration of the allocations at
> WRC-02/03 and to not defer consideration to a future Conference.

**Supporting Information**

Information can be found in Document IWG-2/27 on the following subjects:
substantiating the need of non-GSO MSS systems for additional spectrum;
the technical factors which make frequencies above 1 GHz preferable for
feeder links; the feasibility of sharing frequencies above 1 GHz with
terrestrial services; and the fact that using frequencies above 1 GHz
for feeder links reduces the pressure for use of frequencies below 1
GHz, which are in great demand for other mobile services, as well as for
non-GSO MSS service links for which they are technically better suited.

A detailed discussion of the compatibility of feeder links around 1.4
GHz with the science services in a nearby band can be found in ITU-R
Doc. WP 8D/251 (derived from USWP 8D/1).

**Proposal**

The proposed revisions to Resolution 127, and the Reason for its
revision, are given in the Annex.

In addition, this proposed change to Resolution 127 also requires that
Resolution 722 be amended to add an agenda item under item 2., **"**to
address allocation of the 1.4 GHz spectrum on the basis of proposals
from administrations and the Report of the Conference Preparatory
Meeting, and taking account of the results of WRC-99, to consider and
take appropriate action in respect of the following topics:".

Proposed new item 2.1**N** to read: "allocations on a worldwide basis
for feeder links in bands around 1.4 GHz to the non-geostationary
mobile-satellite services with service links operating below 1 GHz,
taking into account the results of ITU-R studies conducted in response
to Resolution **127**;". With this item added, agenda item 3.5 of
Resolution 722 can be deleted.

> **ANNEX**

USA/w/1

MOD

> RESOLUTION 127 [(WRC-2000)]{.underline}
>
> **Studies relating to consideration of allocations in bands around 1.4
> GHz for feeder links of the non-geostationary satellite systems in the
> mobile --satellite service with service links operating below 1 GHz**
>
> The World Radiocommunication Conference (~~1997~~ Istanbul
> [2000]{.underline}),
>
> *considering*

a)  that the agenda of ~~this Conference~~ [WRC-97]{.underline} included
    consideration of the

    adoption of additional allocations for [the]{.underline}
    non-geostationary (non-GSO) [mobile-]{.underline}satellite ~~systems
    in the mobile-satellite~~ service (MSS);

b)  that the Report of the 199~~7~~ [9]{.underline} Conference
    Preparatory Meeting (CPM-9~~7~~ [9]{.underline}) stated that the
    Radiocommunication Bureau has identified at least
    [\[22]{.underline}\] non-GSO MSS networks \[[as of 28 April,
    1999]{.underline}\] at frequencies below 1 GHz, at some state of
    coordination under Resolution 46 and that many of the proposed
    networks cannot be implemented in the existing allocations because
    there is not enough spectrum;

c\) that CPM-97 stated that due to the extreme sensitivity of radio
astronomy observations interference from unwanted (spurious and
out-of-band) emissions can be a problem. However, CPM-97 noted that
interference to radio astronomy can be avoided using various techniques
including low-power transmitter levels, choice of modulation, bit
shaping, output filtering and band limiting filters. Use of these
techniques can minimize the band separation necessary to meet the
recommended interference threshold levels for out-of-band emissions;

[d]{.underline}~~e~~) that factors taken into account by ~~these~~
post-CPM-97 activities in order to protect the passive services around
1.4 GHz from out-of-band emissions include: the use of narrow-band
non‑GSO MSS feeder-link transmissions; the use of spectrum-efficient
modulation methods, such as GMSK, having inherently rapid roll-off of
out-of-band emissions; the use, where necessary, of band-pass filters in
satellite transmitters and MSS feeder-link transmitting earth stations;
and guardbands where necessary;

[e]{.underline}~~f~~) that factors taken into account by ~~these~~
post-CPM-97 activities concerning sharing with radiolocation include the
use of conventional techniques that may be applied in MSS satellite
receivers, such as intermediate frequency limiters and time diversity,
which have long been employed to protect radiolocation receivers, and
techniques such as transmitted waveforms employing time diversity, which
have been employed to protect receivers in other services from
high-power pulsed radar transmitters,

[f]{.underline}~~d~~) that, since [WRC]{.underline}~~CPM~~-97, ~~one
administration has~~ [ITU-R studies have been]{.underline} carried out
[containing theoretical]{.underline} ~~additional~~ analyses and
hardware demonstrations with a view to determining ~~the feasibility of
sharing between~~ [if the operation of]{.underline} non-GSO MSS feeder
links [in bands around 1.4 GHz would be compatible
with]{.underline}~~and services such as~~ the Earth
exploration-satellite (passive), radio astronomy and space research
(passive), radio astronomy and space research (passive) services ~~in
bands around 1.4 GHz~~;

[g) that the theoretical analyses and preliminary hardware
demonstrations conducted have indicated that sufficient reduction of
out-of-band and spurious emissions could be achieved to protect the
sensitive science services in nearby bands;]{.underline}

[h) that additional tests and measurements of feeder link transmissions
from systems having the characteristics, performance, and reliability of
equipment that would be used in operational systems are
necessary;]{.underline}

[i) that such additional tests and measurements may be conducted within
at least one administration prior to WRC-02/03]{.underline},

> *recognizing*

that the bands near 1.4 GHz are extensively used by many other services
operating in accordance with the Radio Regulations, including fixed and
mobile systems,

*noting*

a)  that Resolution **214 (WRC-97)** states under *resolves* 1. that
    further studies are urgently required on operational and technical
    means to facilitate sharing between non-GSO MSS and other
    radiocommunications services having allocations below 1 GHz;

~~b) that a former resolution identified issues relating to frequency
sharing between the mobile-satellite service and terrestrial services
below 3 GHz as being among the urgent studies required in preparation
for WRC-97;~~

~~c) that one administration performed such studies, which were
submitted to ITU-R, but these studies could not be considered due to
time limitations;~~

[b]{.underline}~~d~~) that, since WRC-95, ~~one administration has
performed studies on~~ [such ITU-R studies have been carried out
on]{.underline} sharing between space and terrestrial services and
feeder links near 1.4 GHz for non-GSO MSS systems with service links
below 1 GHz,

*resolves*

1.  to invite ITU-R, as a matter of urgency to carry out additional
    studies to

    determine the operational and technical measures required to
    facilitate sharing in portions of the band 1390-1400 MHz between
    existing and currently planned services and feeder links
    (Earth-to-space) for non-GSO MSS systems with service links
    operating below 1 GHz;

2.  to invite ITU-R, as a matter of urgency to carry out additional
    studies to

    determine the operational and technical measures required to
    facilitate sharing in portions of the band 1427-1432 MHz between
    existing and currently planned services and feeder links
    (space-to-Earth) for non-GSO MSS systems with service links
    operating below 1 GHz;

3.  to invite ITU-R, as a matter of urgency, to ~~study operational and
    technical measures required~~ [carry out additional studies,
    including the measurement of emissions from equipment that would be
    employed in operational systems]{.underline} to protect passive
    services in the band in the band 1400-1427 MHz from unwanted
    emissions from feeder links near 1.4 GHz for non-GSO MSS systems
    with service links operating below 1 GHz;

4.  to invite [WRC-02/03]{.underline} ~~a future competent
    conference\*~~ to consider, on the basis of completion of studies in
    *resolves* 1, 2, and 3, additional allocations in the above bands
    for feeder links on a world-wide basis non-GSO MSS systems with
    service links below 1 GHz;

*urges administrations*

to participate actively in such studies, with the involvement of
interested parties.

\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\--

~~*\* Note by the Secretariat:* See Resolution **722 (WRC-97).**~~

**REASON**: To take account of the current status of ITU-R studies on
the compatibility of non-GSO MSS feeder links in bands around 1.4 GHz
with services in the same and nearby bands. And to invite WRC-02/03 to
include in its agenda consideration of allocations to non-GSO MSS feeder
links in bands around 1.4 GHz.

**United States of America**

**PROPOSALS FOR THE WORK OF THE CONFERENCE**

**Proposal to add an Agenda Item to Resolution 722**

**(to recommend to the Council items for inclusion in the agenda for the
next WRC, and to give its views on the preliminary agenda for the
subsequent Conference and on possible agenda items for future
conferences)**

**Background Information:**

It is proposed to add an item to Resolution 722, Preliminary Agenda for
the 02/03 World Radiocommunication Conference, to include consideration
of allocations for feeder links in bands around 1.4 GHz to the
non-GSO/MSS with service links operating below 1 GHz, as invited by the
modified Resolution 127.

**Proposals:**

RESOLUTION 722 (WRC-1997)

**Preliminary Agenda for the 2002/03 World Radiocommunication
Conference**

USA/w/2

ADD

2.1N "allocations on a worldwide basis for feeder links in bands around
1.4 GHz to the non-geostationary mobile-satellite services with service
links operating below 1 GHz, taking into account the results of ITU-R
studies conducted in response to Resolution **127**;".

**Reason:** To include in the WRC-02/03 Agenda the consideration of
additional allocations for the non-GSO/MSS as invited by Resolution 127
as revised by WRC-2000.

USA/w/3

SUP

Suppress section 3.5 in Resolution 722 (WRC-97)

**Reason:** The proposed addition to Resolution 722 addresses Resolution
**127**.

**B. Proposals for WRC-2000 Agenda Items 1.11, 4 and 7.2** (The
following is WAC/081(24.06.99) with minor edits from WAC/096(24.06.99).)

# Draft United States Proposal

**Modification of Resolution 214 (Rev. WRC-97)**

**Sharing Studies Relating to Consideration of the Allocation of Bands**

**below 1 GHz to the Non-Geostationary Mobile-Satellite Service**

**and to add an Agenda Item to Resolution 722**

***(Section One - Support Information)***

The \[draft\] CPM Report to WRC-2000 indicates a requirement of 7 to 17
MHz of additional spectrum required for service links in the
non-geostationary mobile-satellite service (non-GSO MSS) below 1 GHz.
Additionally, 4 MHz of shared spectrum is identified as the required
spectrum for MSS feeder links. These requirements will not likely be met
by additional allocations to the non-GSO MSS at WRC-2000. Thus, there
remains an urgent need for usable spectrum to be made available on a
worldwide basis for non-GSO MSS systems operating below 1 GHz.

In response to Resolution 214 (Rev. WRC-97), ITU-R studies have shown
that for specific cases, co-frequency sharing between the non-GSO MSS
and the existing services below 1 GHz may be achieved. However, other
cases including the network aspects of digital trunked systems have not
been taken into account. Consequently, the operational and technical
means to facilitate sharing have not been studied for some systems
operating in some parts of the world.

The continued study and development of Recommendations by the ITU-R on
the performance requirements, sharing criteria and the technical and
operational issues relating to sharing between the existing services and
non-GSO MSS below 1 GHz can provide the technical basis for the
consideration at WRC-2002/03 of additional allocations on a worldwide
basis for the non-GSO MSS below 1GHz. Therefore, the USA proposes the
continuance of Resolution 214 as modified by this proposal.

Consideration of the technical and regulatory constraints on non-GSO MSS
allocations in the bands below 1 GHz was addressed by WRC-2000.
Therefore, that aspect is proposed for deletion from Resolution 214.

The second proposal in this paper results from the first. It is proposed
to modify Resolution No. 722, Preliminary Agenda for the 02/03 World
Radiocommunication Conference, to include the consideration of
additional allocations to the non-GSO MSS as invited by the modified
Resolution 214.

*(Section Two - Proposals)*

**United States of America**

**PROPOSALS FOR THE WORK OF THE CONFERENCE**

**Proposal for Agenda Item 1.11**

(To consider constraints on existing allocations and to consider
additional allocations on a worldwide basis for the non-geostationary
(non-GSO)/MSS below 1 GHz, taking into account the results of ITU-R
studies conducted in response to Resolutions No. 214 (Rev. WRC-97) and
219 (WRC-97))

**Background Information:**

It is proposed to modify Resolution 214 (Rev. WRC-97):

1.  to invite continued ITU-R study of the technical and operational
    measures to facilitate sharing between the non-GSO MSS and existing
    services below 1 GHz;

2.  to invite WRC-2002/03 consideration of additional allocations to the
    non-GSO MSS below 1 GHz;

3.  to delete from Resolution 214 the consideration of technical and
    regulatory constraints on the non-GSO MSS allocations in the bands
    below 1 GHz, which was addressed by WRC-2000.

**Proposal:**

USA/x/1

MOD

RESOLUTION 214 (Rev.WRC-~~97~~[2000]{.underline})

Sharing studies relating to consideration of the allocation of bands\
below 1 GHz to the non-geostationary mobile-satellite service

The World Radiocommunication Conference (~~Geneva, 1997~~[Istanbul,
2000]{.underline}),

considering

*a)* that the agenda of this Conference included consideration of
additional allocations on a worldwide basis for the non-geostationary
mobile-satellite service (non-GSO MSS) below 1 GHz;

*b)* that the 199~~7~~[9]{.underline} Conference Preparatory Meeting, in
its Report, indicated that for the non‑GSO MSS below 1 GHz there is not
enough spectrum currently allocated to allow develop­ment of all the
systems currently in coordination, and that, in order to meet projected
MSS requirements below 1 GHz, a range of an additional 7 to 10 MHz will
be required in the near future although, as well, it recognized that a
number of these systems may not be implemented for reasons not connected
with spectrum availability;

*c)* that there is an urgent need to make usable spectrum available on a
worldwide basis for non‑GSO MSS systems operating below 1 GHz;

*d)* that some non-GSO MSS systems are already operated by some
administrations in existing MSS allocations and are at an advanced stage
of consideration for operation in many other administrations, and that
studies have been conducted within ITU-R on sharing between non‑GSO MSS
and certain terrestrial services which demonstrate the feasibility of
sharing in the cases studied;

*e)* that issues concerning the technical and operational means to
facilitate sharing between the terrestrial services and non-GSO MSS in
the bands below 1 GHz remain to be studied;

*f)* that the requirements for the introduction of these new
technologies have to be balanced with the needs of other services having
allocations below 1 GHz;

*g)* that the bands below 1 GHz are extensively used by administrations
for many ser­vices, although the extent to which they are used by each
admini­stration varies throughout the world,

noting

*a)* that additional studies may identify other bands below 1 GHz which
could also be considered suitable for a worldwide allocation to non‑GSO
MSS;

*b)* that, based on the sharing techniques being developed for MSS below
1 GHz and the current use of the band 138-470 MHz by terrestrial
services, this range may be considered for further study;

*c)* that constraints on the duration of any single transmission from an
individual MSS mobile earth station and constraints on the period
between consecutive transmissions from an individual MSS mobile earth
station operating on the same frequency may facilitate sharing with
terrestrial services;

*d)* that interference mitigation techniques, such as the dynamic
channel activity assign­ment system described in Recommendation ITU-R
M.1039 ~~1~~, may be used by non-GSO MSS systems below 1 GHz in the
Earth-to-space direction to promote compatibility with terrestrial
systems when operating in the same frequency band;

*e)* that new technologies employed by some radiocommunication services,
especially within the terrestrial mobile and broadcasting services,
which require spectrum below 1 GHz, may have an impact on the sharing
possibilities;

[*f)* that substantial progress has been made by the completion of ITU-R
studies to date of sharing between the non-GSO MSS below 1 GHz and
existing specific services, however, studies on some important issues
remain to be completed;]{.underline}

*~~f~~[g]{.underline})* that non-GSO MSS systems operating below 1 GHz
have undergone advance publi­cation by the Radiocommunication Bureau and
that administrations may seek to implement further such
systems~~;~~[,]{.underline}

~~g) that there may be a need to review constraints on the current
allocation to the MSS below 1 GHz,~~

resolves

1 that further studies are urgently required on operational and
technical means to facilitate sharing between the non-GSO MSS and other
radiocommunication services having allocations and operating below
1 GHz;

2 that WRC-~~99~~[2002/03]{.underline} be invited to consider, on the
basis of the results of the studies conducted within ITU-R and the
studies referred to in *resolves* 1 above, additional allocations on a
worldwide basis for the non‑GSO MSS below 1 GHz;

3.  that relevant entities and organizations be invited to participate
    in these sharing studies~~;~~[,]{.underline}

~~4 that WRC-99 be invited to consider a review of the technical and
regulatory constraints on non-GSO MSS allocations in the bands below 1
GHz, taking into account *considering d),*~~

invites ITU-R

1 to study and develop Recommendations on, as a matter of urgency, the
performance requirements, sharing criteria and technical and operational
issues relating to sharing between ~~both~~ existing ~~and planned~~
services and non‑GSO MSS below 1 GHz;

~~2 as a matter of urgency, to carry out studies in preparation for
WRC-99, including a review of the operating constraints referred to in
*noting c)* necessary to protect the existing and planned development of
all the services to which the bands below 1GHz are allocated, having
regard to *noting d);*~~

~~3~~[2]{.underline} as a matter of urgency, to carry out studies in
preparation for WRC-~~99~~[2002/03]{.underline} with respect to
interference mitigation techniques, such as the dynamic channel activity
assignment system described in Recommendation ITU-R M.1039~~-1~~,
necessary to permit the continued development of all of the services to
which the bands are allocated;

~~4 to carry out a review for a future competent conference of the
technical and regulatory constraints on non-GSO MSS allocations in the
bands below 1 GHz, having regard to *considering d);*~~

~~5~~[3]{.underline} to bring the results of these studies to the
attention of WRC‑2002/03 and the relevant preparatory meetings,

urges administrations

1 to participate actively in these studies, with the involvement of both
terrestrial and satellite interests;

2 to submit to ITU-R reports on their technical studies and on their
operational and frequency sharing experience with non-GSO MSS systems
operating below 1 GHz,

encourages administrations

to consider the use of dynamic channel assignment techniques, such as
those described in Recommendation ITU-R M.1039~~-1~~.

**Reasons**: There remains an urgent need for usable spectrum to be made
available on a worldwide basis for non-GSO MSS systems operating below 1
GHz. Requirements have been identified for 7 to 17 MHz of additional
spectrum for service links in the non-GSO MSS below 1 GHz and an
additional 4 MHz for MSS feeder links.

The continued study and development of Recommendations by the ITU-R on
the performance requirements, sharing criteria and the technical and
operational issues relating to sharing between the existing services and
non-GSO MSS below 1 GHz can provide the technical basis for the
consideration at WRC-2002/03 of additional allocations on a worldwide
basis for the non-GSO MSS below 1GHz. Therefore, the USA proposes the
continuance of Resolution 214 as modified by this proposal.

**United States of America**

**PROPOSALS FOR THE WORK OF THE CONFERENCE**

**Proposal for Agenda Item 4**

**(In accordance with Resolution 95, to review the Resolutions and
Recommendations of the previous conferences with a view to their
possible revision, replacement or abrogation)**

**Background Information:**

It is proposed to add an item to Resolution 722, Preliminary Agenda for
the 02/03 World Radiocommunication Conference, to include consideration
of non-GSO MSS allocations below 1 GHz as invited by the modified
Resolution 214.

**Proposal:**

USA/x/2

ADD

RESOLUTION 722 (WRC-1997)

**Preliminary Agenda for the 2002/03 World Radiocommunication
Conference**

[2.AA to consider additional allocations on a worldwide basis for the
non-GSO/MSS below 1 GHz, taking into account the results of ITU-R
studies conducted in response to Resolution No. 214 (Rev.
WRC-2000);]{.underline}

**Reason:** To include in the WRC-02/03 Agenda the consideration of
additional allocations for the non-GSO/MSS as invited by Resolution 214
(Rev. WRC-2000).

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

**C. Proposals for Agenda Items 1.11 and 7.2** (WAC/082(24.06.99) with
minor edits from WAC/097(24.06.99))

**United States of America**

**Proposal for the Work of the Conference**

**Proposal for Agenda Item 1.11**

**and to Add an Agenda Item to Resolution 722**

"to consider constraints on existing allocations and to consider
additional allocations on a worldwide basis for the non-geostationary
(non-GSO) MSS below 1 GHz, taking into account the results of ITU-R
studies conducted in response to Resolutions **214 (Rev. WRC-97)** and
**219 (WRC-97)**"

#  

# **[Modification of Resolution 219]{.underline}**

The proposal herein amends Resolution 219 to take into account the most
recent studies supporting the need for additional spectrum for non-GSO
MSS, and the possibility of increasing the efficiency of spectrum
utilization in the band 401-406 MHz by existing systems which might make
it possible for a portion of the band segment 405-406 MHz be allocated
to non-GSO MSS. The proposal recommends that this allocation be
considered at WRC-02/03.

Background

Resolution 219, adopted at WRC-97, noted the significant shortfall of
spectrum for non-GSO MSS below 1 GHz and that there is an urgent need to
make additional spectrum available on a worldwide basis for such
systems.

It also noted that the development of more spectrum-efficient
meteorological aids systems is continuing in order to minimize the
bandwidth required by these systems.

The Revised Resolution adds a new invitation to the ITU-R to study such
more spectrum-efficient technologies and operational techniques on an
urgent basis.

**Preliminary View**

The \"U.S. should pursue an allocation in the NVNG MSS in the 405-406
MHz band, pending the results of ITU-R studies...\" (The remainder of
the Preliminary View notes the need for the development of a transition
plan for metaids, and the need to protect services in nearby bands.)

**Supporting Information**

Studies are underway to examine spectrum efficient utilization of this
band. A preliminary study of one such spectrum-efficient technology,
based on CDMA, has been submitted to US WP 7C (Doc. USWP 7C/78) for its
consideration. While several problems and limitations of this technique
have been noted in the United States and elsewhere, further study is
continuing.

**Proposed Agenda Item for Resolution 722 (WRC-2003/4):**

Provide new agenda item 2.1N for WRC-02/03 as follows:

"to consider additional allocations on a worldwide basis for the
non-geostationary (non-GSO) MSS below 1 GHz, taking into account the
results of ITU-R studies conducted in response to Resolution **219
(WRC-2000)**;"

**Proposal**

USA/z/1

MOD

RESOLUTION 219 (WRC-~~97~~ [2000]{.underline})

STUDIES RELATING TO CONSIDERATION OF THE ALLOCATION TO THE
NON‑GEOSTATIONARY MOBILE-SATELLITE SERVICE (MSS) IN THE METEOROLOGICAL
AIDS BAND 405 - 406 MHz AND THE\
IMPACT ON PRIMARY SERVICES ALLOCATED IN THE\
ADJACENT BANDS

The World Radiocommunication Conference (~~Geneva 1997~~[Istanbul,
2000]{.underline}),

considering

a\) that there is a significant shortfall of spectrum for the
non-geostationary (non-GSO) mobile-satellite service (MSS) below 1 GHz,
and there is an urgent need to make additional spectrum available on a
worldwide basis for such non-GSO MSS systems;

b)  that the Report of the 1999 Conference Preparatory Meeting
    (CPM-~~97~~ [99)]{.underline} to ~~this conference~~ WRC-~~97~~
    [2000]{.underline} states that the Radiocommunication Bureau (BR)
    has identified ~~23~~ [22]{.underline} non-GSO MSS networks [as of
    \[28 April, 1999\],]{.underline} at frequencies below 1 GHz, at some
    state of coordination under Resolution 46/**S9.11A** of the Radio
    Regulations~~, that it is likely that a number of these systems may
    not be implemented for reasons not connected with spectrum
    availability and that several administrations have indicated in
    their information submitted to **BR** that they plan on implementing
    these non‑GSO MSS systems by the year 2002 or earlier~~; [However,
    it appears that many of the proposed networks cannot be implemented
    in the existing allocation because there is not enough spectrum
    readily available without applying S9.21 to allow the development of
    all these systems]{.underline}.

~~c) that the CPM-97 Report for WRC-97 also states that it appears that
many of the proposed networks cannot be implemented in the existing
allocations because there is not enough spectrum to allow the
development of all of these systems in an economically viable manner;~~

c)  [that the CPM-99 Report for WRC-2000 described an extensive
    study]{.underline}

[carried out by an administration in 1996 which identified a need for
spectrum beyond the current allocations, identifying a spectrum
requirement for service links of about 17 MHz on a shared basis, and an
additional 4 MHz of shared spectrum for feeder links;]{.underline}

[d) that the CPM-99 Report for WRC-2000 also mentioned more recent
reports carried out in 1997-1998 which support the estimates made in the
1996 study.]{.underline}

~~d~~[e]{.underline}) that meteorological aids systems are essential to
produce the upper air measurements required by the World Meteorological
Organization (WMO), as summarized in Recommendation ITU-R SA.1165, and
that systems using the band 400.15 - 406 MHz constitute the majority of
the mobile and fixed observation stations worldwide;

~~e~~[f]{.underline}) that meteorological aids systems are also
essential to produce the upper air measurements required for civilian
and other applications;

~~f~~[g]{.underline}) that the amount of spectrum required by
meteorological users, including WMO (station spacing requirement of 250
km), civilian users and other related users, in most geographical areas
is about 5 MHz in the band 401 - 406 MHz using the currently employed
technology;

~~g)~~ ~~that since this Conference upgraded the allocation to the earth
exploration-satellite service and the meteorological-satellite service
to primary in the band 401-403 MHz, this is likely to impose constraints
on the meteorological aids service in certain geographical areas;~~

[h) that the CPM-99 Report for WRC-2000 stated that in the long term,
improved technology and operational techniques may result in more
efficient use of the band 401-406 MHz by the existing services, which
may enable future review of requirements for this band]{.underline};

~~h)~~[i)]{.underline} that the development of more spectrum-efficient
meteorological aids systems is continuing in order to minimize the
bandwidth required by these systems, as outlined in Recommendation
SA.1165, and that recent development of these related technologies has
been rapid;

~~i)~~[j)]{.underline} that sharing studies to date have shown that
co-channel sharing between currently proposed non‑GSO MSS systems and
meteorological aids in the band 401 - 406 MHz is not generally feasible,
that any sharing would require band segmentation and that the band 405 -
406 MHz has been named by some administrations as a possible candidate
band for such a new allocation;

~~j)~~[k)]{.underline} that any transition of meteorological aids from
the band 405 - 406 MHz should not increase the operational costs of
meteorological aids networks beyond the available financial resources,
and should not constrain the future development of the meteorological
aids service, while using more spectrum-efficient systems;

~~k)~~[l)]{.underline} that the COSPAS-SARSAT system operates within an
exclusive allocation in the band 406 ‑ 406.1 MHz, that the radio
astronomy service has a primary allocation in the band 406.1 ‑ 410 MHz
and that these services need to be protected from MSS transmissions
including unwanted emissions,

noting

a\) that the possible use of the band 405 - 406 MHz by the
mobile-satellite service should be limited to systems using narrow-band
modulation techniques until further ITU-R studies conclude that other
modulation techniques can protect COSPAS-SARSAT (406 - 406.1 MHz) and
the radio astronomy service (406.1 - 410 MHz);

b)  that Resolution **214 (Rev.WRC-97)** also addresses sharing studies
    relating to consideration of the allocation of bands below 1 GHz to
    the non-GSO MSS,

resolves to invite ITU-R

[1. as a matter of urgency, to study improved technology and operational
techniques which may result in more efficient use of the band 401-406
MHz by the existing services;]{.underline}

~~1~~[2]{.underline}. as a matter of urgency, [upon completion of the
studies in *resolves 1*,]{.underline}with the participation of WMO, to
assess further the current and future requirements of the meteorological
aids service in the band 401 - 406 MHz, taking into account the
requirements of the earth exploration-satellite service and the
meteorological-satellite service in the band 401 - 403 MHz;

~~2~~[3]{.underline}. as a matter of urgency, [upon completion of the
studies in *resolves 1*,]{.underline} with the participation of WMO, to
consider the possible transition of the meteorological aids service out
of the band 405 - 406 MHz, which would minimize the impact on the
meteorological aids service, while taking into account requirements for
the implementation of non-GSO MSS;

~~3~~[4]{.underline}. to consider, based on the outcome of
1.[,2]{.underline}. and ~~2~~[3]{.underline}. above, a possible
transition plan, including a transition date at which time
meteorological aids could migrate their operations out of the band
405 ‑ 406 MHz and MSS operations could commence,

~~4 as a matter of urgency, to study, with the participation of IUCAF
and other relevant entities, the impact of unwanted emissions on the
COSPAS-SARSAT system in the band 406 - 406.1 MHz and the radio astronomy
service in the band 406.1 - 410 MHz, and identify appropriate protection
measures for these services;~~

resolves

that the ~~1999~~ [2002/2003]{.underline} World Radiocommunication
Conference [(WRC-]{.underline} ~~99~~ [02/03]{.underline})/~~a future
competent conference~~\] be invited to consider, based on the outcome of
*resolves to invite ITU-R* above, the possibility of allocating the band
405 - 406 MHz to the mobile-satellite service, including any appropriate
transition plan,

urges administrations

1 to assess their current and future requirements for meteorological
aids systems in the band 401 - 406 MHz taking into account the
requirements of the earth exploration-satellite service and the
meteorological-satellite service in the 401 - 403 MHz band;

2 to, either individually or on a subregional or regional basis, report
to WMO and ITU-R on whether the whole of the band 401 - 406 MHz will be
needed for meteorological aids, and the possibility of transition out of
the band 405 - 406 MHz;

3.  to submit to ITU-R the most up-to-date information on their plans
    for possible implementation of non-GSO MSS systems and the
    associated spectrum requirements,

instructs the Secretary-General

to bring this Resolution to the attention of WMO.

\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\--

**REASON**: To take account of the continuing need for additional
spectrum below 1 GHz for non-GSO MSS service links, and to impart a
greater sense of urgency to the development of more spectrum-efficient
techniques by meteorological aids systems in the band 401-406 MHz.

**United States of America**

**PROPOSALS FOR THE WORK OF THE CONFERENCE**

**Proposal for Agenda Item 7.2**

**(to recommend to the Council items for inclusion in the agenda for the
next WRC, and to give its views on the preliminary agenda for the
subsequent Conference and on possible agenda items for future
conferences)**

**Background Information:**

It is proposed to add an item to Resolution 722, Preliminary Agenda for
the 02/03 World Radiocommunication Conference, to include consideration
of non-GSO MSS allocations below 1 GHz, as invited by the modified
Resolution 219.

**Proposal:**

USA/z/2

ADD

RESOLUTION 722 (WRC-1997)

**Preliminary Agenda for the 2002/03 World Radiocommunication
Conference**

[2.1N to consider additional allocations on a worldwide basis for the
non-geostationary (non-GSO) MSS below 1 GHz, taking into account the
results of ITU-R studies conducted in response to Resolution **219
(WRC-2000)**;]{.underline}

**Reason:** To include in the WRC-02/03 Agenda the consideration of
additional allocations for the non-GSO/MSS as invited by Resolution 219
as revised by WRC-2000.

\_\_\_\_\_\_\_\_\_\_\_\_\_

**D. Proposals for Agenda Items 4 and 7.2** [(WAC/083(24.06.99) /
WAC/098(24.06.99))]{.smallcaps}

**United States of America**

**Proposal for the Work of the Conference**

# **Proposal for Agenda Item 4**

(in accordance with Resolution **95 (WRC-97)**, to review the
resolutions and recommendations of previous conferences with a view to
their possible revision, replacement or abrogation;)

The proposal herein amends Resolution 728: to invite additional studies
on feasibility of, and techniques to facilitate, sharing between non-GSO
MSS (space-to-Earth) transmissions and digital television systems in the
band 470-862 MHz; and to invite WRC-05 to consider the possibility of
making additional allocations on a world-wide basis for non-GSO MSS in
certain segments of this band.

**[Background]{.underline}**

Resolution 728, adopted at WRC-97, resolved in part:

1.  to invite ITU-R to carry out studies to determine operational and
    technical means that may facilitate co-frequency sharing between
    narrow-band non-GSO MSS (space-to-Earth) transmissions and the
    services to which the band 470 - 862 MHz is allocated, including the
    bands where the broadcasting service is also allocated,

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2.  to invite a future competent conference to consider, on the basis of

the results of the studies referred to in *resolves* 1, the possibility
of making additional allocations on a worldwide basis for non-GSO MSS...

Existing Recommendations of the ITU-R indicate that operation of
narrow-band non-GSO MSS transmissions might be feasible at the edges of
analogue television channels where the TV signal is least sensitive to
interference. However, ITU-R Recommendations have not identified the
protection ratios for digital television systems. To the extent that
protection ratios for digital television are similar to those for
analogue systems, the same conclusions on the feasibility of sharing
would apply.

The proposed revision of Res. 728 invites additional study of sharing,
including consideration of digital television systems.

The existing Resolution does not identify a specific conference at which
additional allocations to non-GSO MSS in the band 470-862 MHz could be
considered. If a conference is not designated until after all the
necessary studies are completed, there would be a gap of at least four
more years before an allocation item could be put on the agenda of a
conference. Therefore, it is foresighted and prudent to establish a
reasonable future date by which the necessary studies are expected to be
completed.

The proposed revision of Res. 728 invites WRC-05, a Conference that
would convene five years after the adoption of the revised Resolution
calling for additional studies, to consider such additional allocations.
In view of the current plans for the rapid design, development, testing,
and installation of digital television systems, it is likely that the
results of such studies would be available in time for consideration by
WRC-05.

**PRELIMINARY VIEW**: The feasibility of MSS sharing with broadcasting
and other radiocommunications services in this band requires further
study in the ITU-R. Based on these results, the US will determine
whether to pursue MSS allocations in this band.

**PROPOSAL**: The proposed revision of Resolution 728 and the Reason for
its revision are given in the Annex.

The proposed revision of Resolution 728 for allocations at WRC-2005
would require WRC-2000 recommend to the Council an additional agenda
item for WRC-2005 under agenda item 7.2. This new agenda item should
read: "additional allocations on a worldwide basis for the non-GSO MSS
with service links operating below 1 GHz in accordance with Resolution
728".

**ANNEX**

USA/y/1

MOD

RESOLUTION 728 (WRC-~~97~~ [2000]{.underline})

STUDIES RELATING TO CONSIDERATION OF ALLOCATIONS IN THE BROADCASTING
BAND 470 - 862 MHz TO NON-GEOSTATIONARY\
MOBILE-SATELLITE SERVICES

The World Radiocommunication Conference (~~Geneva,1997~~[Istanbul,
2000]{.underline}),

considering

a\) that the agenda of this Conference included consideration of the
adoption of additional allocations for non-geostationary
mobile-satellite services (non-GSO MSS);

b\) that the Report of the 1999 Conference Preparatory Meeting (CPM-99)
stated that the Radiocommunication Bureau has identified at least
\[~~23~~ [22]{.underline}\], non-GSO MSS networks [\[as of 28 April,
1999\]]{.underline} at frequencies below 1 GHz, at some state of
coordination under Resolution 46, and that many of the proposed networks
cannot be implemented in the existing allocations because there is not
enough spectrum;

c\) that CPM-97 considered the protection requirements for analogue
television in the band 470 ‑ 862 MHz against a narrow-band MSS signal in
the most sensitive and least sensitive portions of an analogue
television channel and the protection requirements for a digital
television channel, based on existing ITU-R Recommendations (BT.655-4,
BT.417-4 and IS.851-1);

d\) that CPM-97 stated that the protection ratios for a narrow-band
interfering signal in the least sensitive parts of an analogue
television channel are to be verified by further studies;

e\) that CPM-97 stated the region of lower protection requirements and
commensurately higher permissible interfering power flux-density levels
as being 100 kHz from the band edges of an analogue television channel,
at least in some countries;

f)  that CPM-97 stated that the interfering effects of a non-GSO MSS

transmission will depend on its specific characteristics (e.g.
duty-cycle, duration, periodicity, etc.), that interference
contributions from sources other than MSS (even those from other
broadcasting stations) have to be taken into account, that slightly
lower values of field strength to be protected may need to be assumed in
countries where television networks are relatively sparse, and that
studies on sharing are necessary;

g\) that the permissible aggregate interfering power flux-density
resulting from these protection requirements, in some portions of an
analogue television channel, may be useful in determining the
feasibility of sharing with non‑GSO MSS transmitter space-to-Earth
links;

h\) that these bands are also allocated in part to fixed and mobile
terrestrial systems and radionavigation systems;

i)  that, in many countries, the channels assigned for analogue
    television may also be used for digital television, and that during
    the period of parallel operation of analogue and digital television
    networks the usage of this band for television will increase,

noting

a)  that on completion of studies, parts of the bands now allocated to
    the

broadcasting service between 470 MHz and 862 MHz might be considered
suitable for worldwide allocation to non‑GSO MSS space-to-Earth
transmissions;

b)  that the bandwidth required in these television channels may be 1-2%
    of the total band 470 ‑ 862 MHz to be shared with the above systems;

c)  the need to protect the radio astronomy service in the band 608 -
    614 MHz against interference from MSS transmissions, including
    unwanted emissions,

resolves

1 to invite ITU-R to carry out [additional]{.underline} studies to
determine operational and technical means that may facilitate
co-frequency sharing between narrow-band non-GSO MSS (space-to-Earth)
transmissions and the services to which the band 470 - 862 MHz is
allocated, including the bands where the broadcasting service is also
allocated, [and including consideration of digital television
systems]{.underline};

2.  to invite ~~a future competent conference~~ [WRC-05]{.underline} to
    consider, on the basis of the results of the studies referred to in
    *resolves* 1, the possibility of making additional allocations on a
    worldwide basis for non-GSO MSS, taking into account, in particular,
    *considering* h) and i) above,

urges administrations

to participate actively in such studies, with the involvement of
interested parties.

\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\--

**REASON:** To extend the mandate of Resolution 728 to consideration of
allocations at WRC-05, by which time studies can be completed based on
the additional guidance of WRC-2000, and taking into account the
interference and sharing criteria of digital TV broadcasting systems.

**United States of America**

**PROPOSALS FOR THE WORK OF THE CONFERENCE**

**Proposal for Agenda Item 7.2**

**(to recommend to the Council items for inclusion in the agenda for the
next WRC, and to give its views on the preliminary agenda for the
subsequent Conference and on possible agenda items for future
conferences)**

**Background Information:**

It is proposed to recommend to the Council an agenda item for WRC-2005
that would consider additional allocations on a worldwide basis for the
non-GSO MSS with service links operating below 1 GHz in accordance with
modified Resolution 728.

**Proposal:**

USA/y/2

ADD

RESOLUTION ZZZ (WRC-2000)

**Preliminary Agenda for the 2005 World Radiocommunication Conference**

[2.AA to consider additional allocations on a worldwide basis for the
non-GSO/MSS below 1 GHz with service links operating below 1 GHz in
accordance with Resolution 728]{.underline};

**Reason:** To include in the WRC-05 Preliminary Agenda the
consideration of additional allocations for the non-GSO/MSS as invited
by Resolution 728 (Rev. WRC-2000).

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

**III. [Draft Proposals of IWG-4 (Informal Working Group on NGSO
Fixed-Satellite Service (including consideration of Art. S21 and S22 PFD
Limits)]{.underline}**

**A. Proposal 1** - **Draft United States Proposal for Agenda Item
1.13.1 in**

**Response to Resolution** **131 (WRC-97) Regarding pfd Limits for**

**Non-Geostationary Satellites Operating in the Bands 10.7 -- 12.75 GHz
and**

**17.7 -- 19.3 GHz for the Protection of the Fixed Service**
(WAC/108(24.06.99))

**United States of America**

**\[DRAFT\] PROPOSALS FOR THE WORK OF THE CONFERENCE**

**Proposal for Agenda Item 1.13.1 in Response to Resolution** **131
(WRC-97)**

1.13 on the basis of the results of the studies in accordance with
Resolutions **130 (WRC-97)**, **131 (WRC-97)** and **538 (WRC-97)**:

1.13.1 to review and, if appropriate, revise the power limits appearing
in Articles **S21** and **S22** in relation to the sharing conditions
among non-GSO FSS, GSO FSS, GSO broadcasting-satellite service (BSS),
space sciences and terrestrial services, to ensure the feasibility of
these power limits and that these limits do not impose undue constraints
on the development of these systems and services;

**Background Information:**

Resolution 131 (WRC-97) *invited ITU-R* "to study, as a matter of
urgency, the appropriate power flux-density values to be applied to
non-GSO networks in the bands 10.7 -- 12.75 GHz and 17.7 -- 19.3 GHz to
ensure protection of the fixed service without unduly constraining the
development of either type of network." **RES131** *requested WRC-00*
"to review the provisional pfd limits referred to in *resolves* 1 (of
RES131) based on the results of the studies carried out by ITU-R." The
ITU-R has confirmed the limits in the band 10.7 -- 12.75 GHz and
determined a new set of limits to replace the provisional limits
established by WRC-97 in 17.7 -- 19.3 GHz.

**Proposal:**

USA/x/nnn

**MOD** TABLE **S21-4**

+-------------+--------------------------------------------------------+
| **ADD^aa^   | [These limits apply to emissions of space stations on  |
| S2          | meteorological-satellites and on geostationary FSS     |
| 1.16.6bis** | satellites. These limits also apply to emissions of    |
|             | space stations on non-geostationary FSS satellites     |
|             | which were in operation or for which complete          |
|             | coordination or notification information had been      |
|             | received by the Radiocommunication Bureau: by 17       |
|             | November 1995, in the bands 18.8-19.3 GHz; or by 22    |
|             | November 1997, in the bands 17.7-18.8                  |
|             | GHz.]{.underline}                                      |
+-------------+--------------------------------------------------------+
| **MOD**12   | ~~These values shall apply provisionally only to       |
| *           | emissions of space stations on non-geostationary       |
| *S21.16.6** | satellites in networks operating with a large number   |
|             | of satellites, that is systems operating with more     |
|             | than 100 satellites (see Resolution **131              |
|             | (WRC-97**)).~~ [These limits apply only to emissions   |
|             | of space stations on non-geostationary FSS satellites  |
|             | for which complete coordination or notification        |
|             | information has been received by the                   |
|             | Radiocommunication Bureau after 17 November 1995 in    |
|             | the bands]{.underline}                                 |
|             |                                                        |
|             | [18.8-19.3 GHz or after 22 November 1997 in the bands  |
|             | 17.7-18.8 GHz.  The function X is defined as a         |
|             | function of the number, N, of satellites in the        |
|             | non-GSO FSS constellation as follows:]{.underline}     |
|             |                                                        |
|             | [-- for N ≤ 50]{.underline}                            |
|             | ![](media/image2.wmf){width="0.45694444444444443in"    |
|             | height="0.19305555555555556in"} [(dB)]{.underline}     |
|             |                                                        |
|             | [-- for 50 \< N ≤ 288]{.underline}                     |
|             | ![](media/image3.wmf){width="1.2069444444444444in"     |
|             | height="0.42986111111111114in"} [(dB)]{.underline}     |
|             |                                                        |
|             | [-- for N \> 288]{.underline}                          |
|             | ![](media/image4.wmf){width="1.2347222222222223in"     |
|             | height="0.42986111111111114in"} [(dB)                  |
|             | (WRC-00)]{.underline}                                  |
+-------------+--------------------------------------------------------+
|             |                                                        |
+-------------+--------------------------------------------------------+
| **SUP**14   |                                                        |
| *           |                                                        |
| *S21.16.8** |                                                        |
+-------------+--------------------------------------------------------+
|             |                                                        |
+-------------+--------------------------------------------------------+
| **SUP**15   |                                                        |
| *           |                                                        |
| *S21.16.9** |                                                        |
+-------------+--------------------------------------------------------+
| ##          |                                                        |
+-------------+--------------------------------------------------------+
| ## **S      | ~~RESOLUTION 131 (WRC-97)~~                            |
| UP RES131** |                                                        |
|             | ~~Power flux-density limits applicable to              |
|             | non-geostationary fixed-satellite\                     |
|             | service systems for protection of terrestrial services |
|             | in the\                                                |
|             | bands 10.7-12.75 GHz and 17.7-19.3 GHz~~               |
+-------------+--------------------------------------------------------+

**Reasons**:

This Proposal replaces the provisional pfd limits in Table **S21-4**
with the values that, as a result of extensive ITU-R studies, were
agreed by WP 4-9S and JTG 4-9-11. **ADD^aa^ S21.16.6bis,** and a
corresponding change in **MOD**12 **S21.16.6,** specify the dates of
application of the pfd limits in conformance with the dates established
in **RES131**. **S21.16.8**, **S21.16.9**, and **RES131** are no longer
required.

**B. Proposal 2** (WAC/109(24.06.99))

United States of America

**\[DRAFT\] Proposals for Agenda Item 1.13.1**

To review and, if appropriate, revise the power limits appearing in
Articles S21 and S22 in relation to the sharing conditions among non-GSO
FSS, GSO FSS, GSO broadcasting satellite service (BSS), space services,
and terrestrial services, to ensure the feasibility of these power
limits and that these limits do not impose undue constraints on the
development of these systems and services.

# **Background**

## The report of CPM-99 to WRC-2000 states that "\[t\]here is a need to provide a regulatory mechanism that would ensure protection of GSO FSS and GSO BSS networks from the maximum aggregate equivalent power flux-density produced by multiple non-GSO FSS systems in frequency bands where equivalent power flux-density (EPFD) limits have been adopted." CPM-99 Report at Section 3.1.1.3.2. With respect specifically to the GSO BSS, Section 3.1.3.1.4(b) of the CPM-99 Report to WRC-2000 states that "\[t\]here is a need to ensure that the aggregate EPFD produced by all co-frequency non-GSO FSS systems does not exceed the maximum interference levels, as determined by the agreed to aggregate EPFD masks, that are necessary to protect these GSO BSS systems." 

## The United States strongly agrees with these assessments, and believes that the required regulatory mechanism can only be provided in the form of aggregate limits that are included in Article **S22** or attached to a WRC-2000 Resolution. Because a WRC-2000 Resolution would be an acceptable mechanism, the United States proposes the Resolution included in the attachment, which is based in substantial part on studies performed in the ITU-R.

## 

## **Proposals**

1.  **USA/1.13.1/4**

RESOLUTION WWW (WRC-2000)

PROTECTION OF GSO FSS AND GSO BSS NETWORKS FROM THE MAXIMUM AGGREGATE
EQUIVALENT POWER FLUX‑DENSITY PRODUCED BY MULTIPLE NON‑GSO FSS SYSTEMS
IN FREQUENCY BANDS WHERE EPFD LIMITS HAVE BEEN ADOPTED

The World Radiocommunication Conference (WRC-2000, Istanbul),

considering

a\) that WRC-97 has adopted, in Article **S22**, provisional EPFD limits
to be met by non‑GSO FSS systems in order to protect GSO FSS and GSO BSS
networks in parts of the frequency range 10.7 ‑ 30 GHz;

b\) that WRC-2000 has revised these limits to ensure that they provide
adequate protection to GSO systems without causing undue constraints to
any of the systems and services sharing these frequency bands;

c\) that Article **S22** includes single entry EPFD limits which apply
to non‑GSO FSS systems in these bands;

d\) that these single-entry limits have been derived from aggregate
equivalent power flux‑density (EPFD) masks that are intended to protect
GSO networks, assuming a maximum effective number of non-GSO FSS systems
of 3.5;

e\) that the aggregate interference caused by all co-frequency non‑GSO
FSS systems in these bands into GSO FSS systems should not exceed the
maximum interference levels that are necessary to protect these GSO
systems;

f\) that WRC-97 decided, and WRC-2000 confirmed, that non‑GSO FSS
systems in these bands are to coordinate the use of these frequencies
between themselves under the provisions of No. **S9.12** of the Radio
Regulations;

g)  that the orbital characteristics of such systems are likely to be
    inhomogeneous;

h)  that as a result of this likely inhomogeneity, the aggregate EPFD
    levels from multiple non‑GSO FSS systems are not directly related to
    the number of actual systems sharing a frequency band, and the
    number of such systems operating co-frequency is likely to be small,

recognizing

a\) that non-GSO FSS systems are likely to need to implement
interference mitigation techniques to share frequencies among
themselves;

b\) that because the use of such interference mitigation techniques will
likely keep the number of non‑GSO systems small, the aggregate
interference caused by non‑GSO FSS systems into GSO systems will also
likely be small;

d)  that notwithstanding *considering* d), there may be instances where
    the aggregate interference from non‑GSO systems could exceed the
    interference levels given in Annex 1;

e)  that administrations operating GSO systems may wish to ensure that
    the aggregate EPFD produced by all operating co-frequency non‑GSO
    FSS systems in the frequency bands referred to in *considering* a)
    above into GSO FSS and/or GSO BSS networks does not exceed the
    aggregate interference levels given in Annex 1,

resolves

1 that administrations operating or planning to operate non‑GSO FSS
systems in the frequency bands referred to in *considering* a) above,
individually or in collaboration, take all possible steps, including by
means of appropriate modifications to their systems if necessary, to
ensure that the actual aggregate interference into GSO FSS and GSO BSS
networks caused by such systems operating co-frequency in these
frequency bands does not exceed the aggregate power levels shown in
Annex 1;

2 that, in the event that the aggregate interference levels in Annex 1
are exceeded into an operational GSO earth station, administrations
operating non‑GSO FSS systems in these frequency bands shall
expeditiously take all necessary measures to reduce the aggregate EPFD
levels to those in Annex 1 or to reduce such interference to higher
levels that are acceptable to the affected GSO administration,

requests ITU-R

1 to develop, as a matter of urgency, and complete, in time for
consideration by the next WRC, a methodology for calculating the
aggregate EPFD produced by all non‑GSO FSS systems operating or planning
to operate co-frequency in the frequency bands referred to in
*considering* a) above into GSO FSS and GSO BSS networks and for
comparing the calculated levels with the aggregate power levels shown in
Annex 1;

2 to continue its studies on the accurate modelling of interference from
non‑GSO FSS systems into GSO FSS and GSO BSS networks in the frequency
bands referred to in *considering* a) above in order to assist the
administrations planning or operating non‑GSO FSS systems in their
efforts to limit the aggregate EPFD levels produced by their systems
into GSO networks,

requests the Director of the Radiocommunication Bureau

to assist in the development of the methodology referred to in *requests
ITU-R* 1 above.

ANNEX 1 (to Resolution WWW)

This Annex to Resolution WWW contains tables of interference levels
concerning aggregate interference from multiple non-GSO FSS systems into
GSO FSS and GSO BSS systems.

**TABLE 1A-FSS ^1^**

Limits to the aggregate EPFD~down~ radiated by non-GSO FSS systems in
certain frequency bands

+------------+------------+--------------+--------+-------------------+
| Frequency  | EPFD~down~ | Percentage\  | Refe   | Reference         |
| band\      | dB(W/m^2^) | of time      | rence\ | antenna\          |
| (GHz)      |            | during which | band   | diameter, and     |
|            |            | EPFD~down~   | width\ | reference\        |
|            |            | may not be   | (kHz)  | radiation pattern |
|            |            | exceeded     |        | ^2^               |
+------------+------------+--------------+--------+-------------------+
|            | -170.0     | 0            | 40     | 60 cm Rec.        |
|            |            |              |        | S.\[4/57\]        |
|            | -168.6     | 90           |        |                   |
|            |            |              |        |                   |
|            | -165.3     | 99           |        |                   |
|            |            |              |        |                   |
|            | -160.4     | 99.97        |        |                   |
|            |            |              |        |                   |
|            | -160.0     | 99.99        |        |                   |
|            |            |              |        |                   |
|            | -160.0     | 100          |        |                   |
+------------+------------+--------------+--------+-------------------+
| 10.7 --    | -176.5     | 0            | 40     | 1.2 m Rec.        |
| 11.7;\     |            |              |        | S.\[4/57\]        |
| 11.7 --    | -173.0     | 99.5         |        |                   |
| 12.2\      |            |              |        |                   |
| in Region  | -164.0     | 99.84        |        |                   |
| 2;\        |            |              |        |                   |
| 12.2 --    | -161.6     | 99.945       |        |                   |
| 12.5\      |            |              |        |                   |
| in Region  | -161.4     | 99.97        |        |                   |
| 3 and\     |            |              |        |                   |
| 12.5 --    | -160.8     | 99.99        |        |                   |
| 12.75\     |            |              |        |                   |
| in Regions | -160.5     | 99.99        |        |                   |
| 1\         |            |              |        |                   |
| and 3      | -160       | 99.9975      |        |                   |
|            |            |              |        |                   |
|            | -160       | 100          |        |                   |
+------------+------------+--------------+--------+-------------------+
|            | -185.0     | 0            | 40     | 3 m Rec.          |
|            |            |              |        | S.\[4/57\]        |
|            | -184.0     | 90           |        |                   |
|            |            |              |        |                   |
|            | -182.5     | 99.1         |        |                   |
|            |            |              |        |                   |
|            | -160       | 99.999       |        |                   |
|            |            |              |        |                   |
|            | -160       | 100          |        |                   |
+------------+------------+--------------+--------+-------------------+
|            | -190.0     | 0            | 40     | 10 m Rec.         |
|            |            |              |        | S.\[4/57\]        |
|            | -190.0     | 99.9         |        |                   |
|            |            |              |        |                   |
|            | -163.0     | 99.999       |        |                   |
|            |            |              |        |                   |
|            | -163.0     | 100          |        |                   |
+------------+------------+--------------+--------+-------------------+

For certain receive earth stations, see also ADD **S9.7A** and ADD
**S9.7B**.

2.  Under this Section, reference patterns are to be used only for the
    calculation of interference from non-GSO FSS systems into GSO FSS
    and BSS systems.

***Editorial Note to Table 1A-FSS:*** The US proposal included in Table
1A-FSS for the 3 meter and 10 meter antenna diameters reflect in tabular
form Curve B from Figures 1 and 2, respectively, in Section 3.1.2.1.4(c)
of the draft CPM Report. An alternative set of curves (Curve A from
Figures 1 and 2, respectively), is also included in Section 3.1.2.1.4(c)
in the draft CPM Report. A set of values based on the alternative set of
curves, which is not supported by the US, is provided in tabular form
below:

+-----------+--------------+---------------+--------+-----------------+
| *\        | *\           | *Percentage\  | *Refe  | *Reference      |
| Frequency | EPFD~down~   | of time       | rence\ | antenna\        |
| band\     | dB(W/m^2^)*  | during which  | band   | diameter, and   |
| (GHz)*    |              | EPFD~down~    | width\ | reference\      |
|           |              | may not be    | (kHz)* | radiation       |
|           |              | exceeded*     |        | pattern^2^*     |
+-----------+--------------+---------------+--------+-----------------+
| *10.7 --  | *-185*       | *0*           | *40*   | *3 m Rec.       |
| 11.7;\    |              |               |        | S.\[4/57\]*     |
| 11.7 --   | *-184*       | *90*          |        |                 |
| 12.2\     |              |               |        |                 |
| in Region | *-182.5*     | *99*          |        |                 |
| 2;\       |              |               |        |                 |
| 12.2 --   | *-182*       | *99.5*        |        |                 |
| 12.5\     |              |               |        |                 |
| in Region | *-168*       | *99.9*        |        |                 |
| 3 and\    |              |               |        |                 |
| 12.5 --   | *-164*       | *99.96*       |        |                 |
| 12.75\    |              |               |        |                 |
| in        | *-161.8*     | *99.985*      |        |                 |
| Regions   |              |               |        |                 |
| 1\        | *-160*       | *99.997*      |        |                 |
| and 3*    |              |               |        |                 |
|           | *-160*       | *100*         |        |                 |
+-----------+--------------+---------------+--------+-----------------+
|           | *-190*       | *0*           | *40*   | *10 m Rec.      |
|           |              |               |        | S.\[4/57\]*     |
|           | *-190*       | *99*          |        |                 |
|           |              |               |        |                 |
|           | *-166*       | *99.991*      |        |                 |
|           |              |               |        |                 |
|           | *-160*       | *99.998*      |        |                 |
|           |              |               |        |                 |
|           | *-160*       | *100*         |        |                 |
+-----------+--------------+---------------+--------+-----------------+

No agreement was reached within the ITU-R and work is continuing in an
effort to reach a compromise between the two sets of limits, or to agree
on other mutually acceptable solutions.

**TABLE 1B-FSS ^1^**

Limits to the aggregate EPFD ~down~ radiated by non-GSO FSS systems in
certain frequency bands

+---------+---------+--------------------+----------+-----------------+
| **Fr    | **Epfd  | **Percentage of    | **R      | Reference       |
| equency | ~down~\ | time during which  | eference | antenna\        |
| Band    | dB(W/   | Epfd~down~ may not | B        | diameter, and   |
| (GHz)** | m^2^)** | be exceeded**      | andwidth | reference\      |
|         |         |                    | (kHz)**  | radiation       |
|         |         |                    |          | pattern ^2^     |
+---------+---------+--------------------+----------+-----------------+
| 17      | --170\  | 0\                 | 40 ^3^   | 1 m Rec.        |
| .8-18.6 | --170   | 90                 |          | S.\[4/57\]      |
|         |         |                    |          |                 |
|         | --164\  | 99.9\              |          |                 |
|         | --164   | 100                |          |                 |
+---------+---------+--------------------+----------+-----------------+
| 17      | --173\  | 0                  | 40 ^3^   | 2 m Rec.        |
| .8-18.6 | --173   |                    |          | S.\[4/57\]      |
|         |         | 99.4               |          |                 |
|         | --166\  |                    |          |                 |
|         | --164\  | 99.9               |          |                 |
|         | --164   |                    |          |                 |
|         |         | 99.92              |          |                 |
|         |         |                    |          |                 |
|         |         | 100                |          |                 |
+---------+---------+--------------------+----------+-----------------+
| 17      | --180   | 0                  | 40 ^3^   | 5 m Rec.        |
| .8-18.6 |         |                    |          | S.\[4/57\]      |
|         | --180\  | 99.8               |          |                 |
|         | --172\  |                    |          |                 |
|         | --164\  | 99.8               |          |                 |
|         | --164   |                    |          |                 |
|         |         | 99.992\            |          |                 |
|         |         | 100                |          |                 |
+---------+---------+--------------------+----------+-----------------+

For certain receive earth stations, see also ADD **S9.7A** and ADD
**S9.7B**.

^2^ Under this Section, reference patterns are to be used only for the
calculation of interference from non-GSO FSS systems into GSO FSS and
BSS systems.

^3^ For non-GSO emission bandwidths greater than 40 kHz, the epfd~down~
limits may be scaled by adding 10 log(non-GSO emission bandwidth / 40
kHz) in a reference bandwidth equal to the emission bandwidth.

**TABLE 1C-FSS ^1^**

Limits to the aggregate EPFD ~down~ radiated by non-GSO FSS systems in
certain frequency bands

### 

+---------+---------+--------------------+----------+-----------------+
| **Fr    | **Epfd~ | **Percentage of    | **R      | Reference       |
| equency | down~** | time during which  | eference | antenna\        |
| Band    |         | Epfd~down~ may not | B        | diameter, and   |
| (GHz)** | **dB(W/ | be exceeded**      | andwidth | reference\      |
|         | m^2^)** |                    | (kHz)**  | radiation       |
|         |         |                    |          | pattern ^2^     |
+---------+---------+--------------------+----------+-----------------+
| 19      | --182   | 0                  | 40 ^3^   | 70 cm Rec.      |
| .7-20.2 |         |                    |          | S.\[4/57\]      |
|         | --172\  | 90                 |          |                 |
|         | --154   |                    |          |                 |
|         |         | 99.94              |          |                 |
|         | --154   |                    |          |                 |
|         |         | 100                |          |                 |
+---------+---------+--------------------+----------+-----------------+
| 19      | --185\  | 0                  | 40 ^3^   | 90 cm Rec.      |
| .7-20.2 | --176\  |                    |          | S.\[4/57\]      |
|         | --165\  | 91                 |          |                 |
|         | --160\  |                    |          |                 |
|         | --154\  | 99.8               |          |                 |
|         | --154   |                    |          |                 |
|         |         | 99.8               |          |                 |
|         |         |                    |          |                 |
|         |         | 99.99              |          |                 |
|         |         |                    |          |                 |
|         |         | 100                |          |                 |
+---------+---------+--------------------+----------+-----------------+
| 19      | --193   | 0\                 | 40 ^3^   | 2.5 m Rec.      |
| .7-20.2 |         | 90                 |          | S.\[4/57\]      |
|         | --185\  |                    |          |                 |
|         | --166   | 99.99\             |          |                 |
|         |         | 99.99              |          |                 |
|         | --160\  |                    |          |                 |
|         | --154   | 99.998             |          |                 |
|         |         |                    |          |                 |
|         | -154    | 100                |          |                 |
+---------+---------+--------------------+----------+-----------------+

For certain receive earth stations, see also ADD **S9.7A** and ADD
**S9.7B**.

^2^ Under this Section, reference patterns are to be used only for the
calculation of interference from non-GSO FSS systems into GSO FSS and
BSS systems.

^3^ For non-GSO emission bandwidths greater than 40kHz, the epfd~down~
limits may be scaled by adding 10 log(non-GSO emission bandwidth / 40
kHz) in a reference bandwidth equal to the emission bandwidth.

***Editorial Note to Table 1C-FSS:** The table below contains the
aggregate EPFD~down~ masks for the 2.5 and 5 meter antennas in the
19.7-20.2 GHz band supported by the majority of participants at the
final JTG 4-9-11 meeting and included in the draft CPM Report.*

+-----------+--------------+---------------+--------+-----------------+
| *         | *\           | *Percentage\  | *Refe  | *Reference      |
| Frequency | EPFD~down~   | of time       | rence\ | antenna\        |
| band\     | dB(W/m^2^)*  | during which  | band   | diameter, and   |
| (GHz)*    |              | EPFD~down~    | width\ | reference\      |
|           |              | may not be    | (kHz)* | radiation       |
|           |              | exceeded*     |        | pattern^2^*     |
+-----------+--------------+---------------+--------+-----------------+
| *1        | *-191*       | *0*           | *40*   | *2.5 m Rec.     |
| 9.7-20.2* |              |               |        | S.\[4/57\]*     |
|           | *-154.35*    | *99.99*       |        |                 |
|           |              |               |        |                 |
|           | *-154.35*    | *100*         |        |                 |
+-----------+--------------+---------------+--------+-----------------+
| *1        | *-195*       | *0*           | *40*   | *5 m Rec. S     |
| 9.7-20.2* |              |               |        | \[4/57\]*       |
|           | *-184*       | *90*          |        |                 |
|           |              |               |        |                 |
|           | *-175*       | *99.6*        |        |                 |
|           |              |               |        |                 |
|           | *-154.35*    | *99.996*      |        |                 |
|           |              |               |        |                 |
|           | *-154.35*    | *100*         |        |                 |
+-----------+--------------+---------------+--------+-----------------+

*Due to the late introduction of this proposal, nearing the end of the
meeting, the U.S. was unable to agree to these masks. Nevertheless, the
U.S. is continuing to work towards resolving the differences between the
two masks for the 2.5 meter antenna. It is noted that the U.S. does not
currently see the need for an EPFD~down~ mask for the 5 meter antenna
diameter in this band, and is of the view that the final 2.5 meter mask
should also protect antenna sizes up to 3.5 meters*

TABLE 1D-BSS

Limits to the aggregate EPFD ~down~ radiated by non-GSO FSS systems in
certain frequency bands

30cm, 45cm, and 60cm BSS antennas

  ------------ ------------ --------------- ------------ --------------------
  Frequency    Epfd~down~   Percentage\     Reference\   Reference antenna\
  band\        dB(W/m^2^)   of time during  bandwidth\   diameter, and
  (GHz)                     which           (kHz)        reference\
                            Epfd~down~ may               radiation pattern
                            not be exceeded              ^1^

               -160.400     0.000                        

  11.7 -- 12.5 -160.100     25.000                       
  GHz                                                    

  In Region 1  -158.600     96.000                       30 cm

  11.7 -- 12.2 -158.600     98.000          40           DNR ITU-R
  GHz and                                                BO.\[Doc. 11/137

  12.5 --      -158.330     98.000                       Annex 1\]
  12.75 GHz                                              

  In Region 3  -158.330     100.000                      

  12.2 -- 12.7                                           
  GHz                                                    

  In Region 2                                            

               -170.000     0.000                        

  11.7 -- 12.5 -167.000     66.000                       
  GHz                                                    

  In Region 1  -164.000     97.750                       45 cm

  11.7 -- 12.2 -160.750     99.330          40           DNR ITU-R
  GHz and                                                BO.\[Doc. 11/137

  12.5 --      -160.750     99.330                       Annex 1\]
  12.75 GHz                                              

  In Region 3  -160.000     99.950                       

  12.2 -- 12.7 -159.900     100.000                      
  GHz                                                    

  In Region 2                                            

               -171.000     0.000                        

  11.7 -- 12.5 -168.750     90.000                       
  GHz                                                    

  In Region 1  -167.750     97.800                       60 cm

  11.7 -- 12.2 -162.000     99.600          40           DNR ITU-R BO.\
  GHz and                                                \[Doc. 11/137

  12.5 --      -161.000     99.800                       Annex 1\]
  12.75 GHz                                              

  In Region 3  -160.200     99.900                       

  12.2 -- 12.7 -160.000     99.990                       
  GHz                                                    

  In Region 2  -159.900     100.000                      
  ------------ ------------ --------------- ------------ --------------------

^1^ Under this Section, reference patterns are to be used only for the
calculation of interference from non-GSO FSS systems into GSO FSS and
BSS systems.

TABLE 1E-BSS

Limits to the aggregate EPFD ~down~ radiated by non-GSO FSS systems in
certain frequency bands

90cm and 120cm BSS antennas

  ------------ ------------ --------------- ------------ --------------------
  Frequency    Epfd~down~   Percentage\     Reference\   Reference antenna\
  band\        dB(W/m^2^)   of time during  bandwidth\   diameter, and
  (GHz)                     which           (kHz)        reference\
                            Epfd~down~ may               radiation pattern
                            not be exceeded              ^1^

               -173.75      0.000                        

  11.7 -- 12.5 -173         33.000                       
  GHz                                                    

  In Region 1  -171         98.000                       90 cm

  11.7 -- 12.2 -165.5       99.100          40           DNR ITU-R BO.\
  GHz and                                                \[Doc. 11/137

  12.5 --      -163         99.500                       Annex 1\]
  12.75 GHz                                              

  In Region 3  -161         99.800                       

  12.2 -- 12.7 -160         99.970                       
  GHz                                                    

  In Region 2  -159.9       100.000                      

               -177.000     0.000                        

               -175.250     90.000                       

  11.7 -- 12.5 -173.750     98.900                       
  GHz                                                    

  In Region 1  -173.000     98.900                       120 cm

  11.7 -- 12.2 -169.500     99.500          40           DNR ITU-R BO.\
  GHz and                                                \[Doc. 11/137

  12.5 --      -167.800     99.700                       Annex 1\]
  12.75 GHz                                              

  In Region 3  -164.000     99.820                       

  12.2 -- 12.7 -161.900     99.900                       
  GHz                                                    

  In Region 2  -161.000     99.965                       

               -160.400     99.993                       

               -159.900     100                          
  ------------ ------------ --------------- ------------ --------------------

^1^ Under this Section, reference patterns are to be used only for the
calculation of interference from non-GSO FSS systems into GSO FSS and
BSS systems.

TABLE 1F-BSS

Limits to the aggregate EPFD ~down~ radiated by non-GSO FSS systems in
certain frequency bands

180cm and 240cm BSS antennas

  ------------ ------------ --------------- ------------ --------------------
  Frequency    Epfd~down~   Percentage\     Reference\   Reference antenna\
  band\        dB(W/m^2^)   of time during  bandwidth\   diameter, and
  (GHz)                     which           (kHz)        reference\
                            Epfd~down~ may               radiation pattern
                            not be exceeded              ^1^

               -192.8       0                            

  11.7 -- 12.5 -192.8       96.06                        
  GHz                                                    

  In Region 1  -188         98.37                        180 cm

  11.7 -- 12.2 -185         99.06           4            DNR ITU-R BO.\
  GHz and                                                \[Doc. 11/137

  12.5 --      -182         99.46                        Annex 1\]
  12.75 GHz                                              

  In Region 3  -178.8       99.7                         

  12.2 -- 12.7 -178.8       100                          
  GHz                                                    

  In Region 2                                            

               -195         0                            

  11.7 -- 12.5 -195         99.24                        
  GHz                                                    

  In Region 1  -193         99.48                        240 cm

  11.7 -- 12.2 -190         99.70           4            DNR ITU-R BO.\
  GHz and                                                \[Doc. 11/137

  12.5 --      -187         99.83                        Annex 1\]
  12.75 GHz                                              

  In Region 3  -184         99.9                         

  12.2 -- 12.7 -184         100                          
  GHz                                                    

  In Region 2                                            
  ------------ ------------ --------------- ------------ --------------------

^1^ Under this Section, reference patterns are to be used only for the
calculation of interference from non-GSO FSS systems into GSO FSS and
BSS systems.

***Editorial Note to Table 1F-BSS:** Recognizing the work performed to
date by the ITU-R and the masks included in Chapter 3 of the CPM Report,
further analysis is being conducted on the proposed BSS EPFD~down~ masks
for the 180 cm and 240 cm antenna sizes. For example, the possibility of
a latitude dependent EPFD~down~ level for 100 percent of the time is
under study with a view to relaxing the 100% EPFD~down~ level of the
U.S. proposed masks in Table **1F-BSS**.*

**Reasons:** The ITU-R has determined that it is necessary to provide a
regulatory mechanism that ensures the protection of GSO FSS and GSO BSS
networks from the maximum aggregate equivalent power flux-density
produced by multiple non-GSO FSS systems in frequency bands where EPFD
limits have been adopted. The foregoing Resolution, which is in the form
of the example resolution suggested by CPM-99-2, is the only such
regulatory mechanism other than inclusion of the aggregate EPFD limits
in Article **S22** that would provide the necessary protection of GSO
FSS and GSO BSS networks.

**C. Proposal 3** (WAC/110(24.06.99))

United States of America

\[DRAFT\] Proposals for Agenda Item 1.13.1

To review and, if appropriate, revise the power limits appearing in
Articles S21 and S22 in relation to the sharing conditions among non-GSO
FSS, GSO FSS, GSO broadcasting satellite service (BSS), space services,
and terrestrial services, to ensure the feasibility of these power
limits and that these limits do not impose undue constraints on the
development of these systems and services.

# **Background**

Resolution 130 (WRC-97) and Resolution 538 (WRC-97) each requested the
ITU-R to conduct (a) "appropriate technical, operational and regulatory
studies" to review the regulatory conditions relating to the coexistence
of non-GSO FSS and GSO FSS and GSO BSS systems, in order to ensure that
undue constraints are not placed on the development of non-GSO FSS, GSO
FSS and GSO BSS systems, and (b) the development of a methodology for
calculating the power levels produced by non-GSO FSS systems and the
compliance of these levels with the applicable limits established
pursuant to Resolutions 130 and 538.

Joint Task Group 4-9-11 was established by the ITU-R to pursue these
mandates and to determine the necessary technical bases. Taking into
account the work of the ITU-R on this matter, the United States makes
the following proposals for **Section II** of Arcticle **S22**.

## **Proposals:**

## **USA/1.13.1/1**

### **SUP S22.5B, S22.5C, S22.5D, S22.5E, and S22.5F**

**Reasons:** Proposed Sections **ADD S22.5B, ADD S22.5C, ADD S22.5D, ADD
S22.5E, ADD S22.5F, ADD S22.5G,** and **ADD S22.5H** below, which are
based in substantial part on work that has been performed in the ITU-R
since WRC-97 established current **Nos. S22.5B, S22.5C, S22.5D,
S22.5E**, **and S22.5F** are intended to be a package that would replace
and supplement the current provisions of much of Section II of Article
**S22**.

2.  **USA/1.13.1/2**

> **[NOC]{.underline} S22.2, S22.3, S22.4, S22.5, S22.5A**

**Reasons:** These provisions are not directly affected by the review of
the EPFD limits that was carried out pursuant to Resolution 130, and
should remain unchanged.

3.  **USA/1.13.1/3**

**ADD S22.5B, S22.5C, S22.5D, S22.5E, S22.5F, S22.5G, and S22.5H**

**Reasons:** These provisions, which are based in substantial part on
the studies carried out by the ITU-R pursuant to Resolution 130, are
intended to

replace in their entirety the existing Regulations currently found in
**Nos. S22.5B to S22.5F**, inclusive. The application of EPFD**~up~**
limits as per Table S22-2 is specifically limited to the bands specified
in that table.

+-------------+--------------------------------------------------------+
| ####        | § 5 1) The equivalent power flux-density^XX^,          |
|  ADD S22.5B | EPFD~down~, at any point on the Earth\'s surface       |
|             | visible from the geostationary-satellite orbit,        |
|             | produced by emissions from all the space stations of a |
|             | non-geostationary-satellite system in the              |
|             | fixed‑satellite service in the frequency bands listed  |
|             | in Tables **S22‑1A** through **S22-1F**, including     |
|             | emissions from a reflecting satellite, for all         |
|             | conditions and for all methods of modulation, shall    |
|             | not exceed the limits given in Tables **S22‑1A**       |
|             | through **S22-1F** for the given percentages of time.  |
|             | These limits relate to the equivalent power            |
|             | flux-density which would be obtained under free-space  |
|             | propagation conditions, into a reference antenna and   |
|             | in the reference bandwidth specified in                |
|             | Tables **S22‑1A** through **S22-1F**, for all pointing |
|             | directions towards the geostationary-satellite orbit.  |
+-------------+--------------------------------------------------------+
|             |                                                        |
+-------------+--------------------------------------------------------+
| **^XX^ADD** | The equivalent power flux-density is defined as the    |
| *           | sum of the power flux‑densities produced at a GSO      |
| *S22.5B.1** | receive station on the Earth\'s surface or in the      |
|             | geostationary orbit, as appropriate, by all the        |
|             | transmit stations within a non-geostationary-satellite |
|             | system, taking into account the off-axis               |
|             | discrimination of a reference receiving antenna        |
|             | assumed to be pointing in its nominal direction. The   |
|             | equivalent power flux-density is calculated using the  |
|             | following formula:                                     |
|             |                                                        |
|             | ![](media/image5.wmf){width="2.7944444444444443in"     |
|             | height="0.5986111111111111in"}                         |
|             |                                                        |
|             | where:                                                 |
|             |                                                        |
|             | *N~a~* is the number of transmit stations in the       |
|             | non‑geostationary‑satellite system that are visible    |
|             | from the GSO receive station considered on the         |
|             | Earth\'s surface or in the geostationary orbit, as     |
|             | appropriate                                            |
|             |                                                        |
|             | *i* is the index of the transmit station considered in |
|             | the non‑geostationary-satellite system                 |
+-------------+--------------------------------------------------------+
|             | *P~i\ ~*is the RF power at the input of the antenna of |
|             | the transmit station, considered in the                |
|             | non‑geostationary satellite system in dBW in the       |
|             | reference bandwidth                                    |
|             |                                                        |
|             | *~i~* is the off-axis angle between the boresight of   |
|             | the transmit station considered in the                 |
|             | non‑geostationary satellite system and the direction   |
|             | of the GSO receive station                             |
|             |                                                        |
|             | *G~t~(~i~ )* is the transmit antenna gain (as a ratio) |
|             | of the station considered in the non-geostationary     |
|             | satellite system in the direction of the GSO receive   |
|             | station                                                |
|             |                                                        |
|             | *d~i~* is the distance in metres between the transmit  |
|             | station considered in the non-geostationary satellite  |
|             | system and the GSO receive station                     |
|             |                                                        |
|             | *~i~* is the off-axis angle between the boresight of   |
|             | the antenna of the GSO receive station and the         |
|             | direction of the ith transmit station                  |
|             |                                                        |
|             | considered in the non‑geostationary satellite system   |
+-------------+--------------------------------------------------------+
|             | *G~ri~)* is the receive antenna gain (as a ratio) of   |
|             | the GSO receive station in the direction of the ith    |
|             | transmit station considered in the non‑geostationary   |
|             | satellite system                                       |
|             |                                                        |
|             | *G~r,max~* is the maximum gain (as a ratio) of the     |
|             | antenna of the GSO receive station                     |
|             |                                                        |
|             | *EPFD* is the computed equivalent power flux-density   |
|             | in dB(W/m^2^) in the reference bandwidth               |
+-------------+--------------------------------------------------------+

**ADD TABLE S22-1A^1^**

Limits to the EPFD~down~ radiated by non-GSO FSS systems in certain
frequency bands

+------------+------------+--------------+--------+-------------------+
| Frequency  | EPFD~down~ | Percentage\  | Refe   | Reference         |
| band\      | dB(W/m^2^) | of time      | rence\ | antenna\          |
| (GHz)      |            | during which | band   | diameter, and     |
|            |            | EPFD~down~   | width\ | reference\        |
|            |            | may not be   | (kHz)  | radiation         |
|            |            | exceeded     |        | pattern^2^        |
+------------+------------+--------------+--------+-------------------+
|            | -175.4     | 0            | 40     | 60 cm Rec.        |
|            |            |              |        | S.\[4/57\]        |
|            | -174.0     | 90           |        |                   |
|            |            |              |        |                   |
|            | -170.8     | 99           |        |                   |
|            |            |              |        |                   |
|            | -165.3     | 99.73        |        |                   |
|            |            |              |        |                   |
|            | -160.4     | 99.991       |        |                   |
|            |            |              |        |                   |
|            | -160.0     | 99.997       |        |                   |
|            |            |              |        |                   |
|            | -160.0     | 100          |        |                   |
+------------+------------+--------------+--------+-------------------+
| 10.7 -     | -181.9     | 0            | 40     | 1.2 m Rec.        |
| 11.7;\     |            |              |        | S.\[4/57\]        |
| 11.7 -     | -178.4     | 99.5         |        |                   |
| 12.2\      |            |              |        |                   |
| in Region  | -173.4     | 99.74        |        |                   |
| 2;\        |            |              |        |                   |
| 12.2 -     | -173.0     | 99.857       |        |                   |
| 12.5\      |            |              |        |                   |
| in Region  | -164.0     | 99.954       |        |                   |
| 3 and\     |            |              |        |                   |
| 12.5 -     | -161.6     | 99.984       |        |                   |
| 12.75\     |            |              |        |                   |
| in Regions | -161.4     | 99.991       |        |                   |
| 1\         |            |              |        |                   |
| and 3      | -160.8     | 99.997       |        |                   |
|            |            |              |        |                   |
|            | -160.5     | 99.997       |        |                   |
|            |            |              |        |                   |
|            | -160.0     | 99.9993      |        |                   |
|            |            |              |        |                   |
|            | -160.0     | 100          |        |                   |
+------------+------------+--------------+--------+-------------------+
|            | -190.4     | 0            | 40     | 3 m Rec.          |
|            |            |              |        | S.\[4/57\]        |
|            | -189.4     | 90           |        |                   |
|            |            |              |        |                   |
|            | -188.0     | 99           |        |                   |
|            |            |              |        |                   |
|            | -182.5     | 99.743       |        |                   |
|            |            |              |        |                   |
|            | -160.0     | 99.9997      |        |                   |
|            |            |              |        |                   |
|            | -160.0     | 100          |        |                   |
+------------+------------+--------------+--------+-------------------+
|            | -195.4     | 0            | 40     | 10 m Rec.         |
|            |            |              |        | S.\[4/57\]        |
|            | -195.4     | 99.9         |        |                   |
|            |            |              |        |                   |
|            | -190       | 99.96        |        |                   |
|            |            |              |        |                   |
|            | -190       | 99.971       |        |                   |
|            |            |              |        |                   |
|            | -163       | 99.9997      |        |                   |
|            |            |              |        |                   |
|            | -163       | 100          |        |                   |
+------------+------------+--------------+--------+-------------------+

For certain receive earth stations, see also ADD **S9.7A** and ADD
**S9.7B**.

3.  Under this Section, reference patterns are to be used only for the
    calculation of interference from non-GSO FSS systems into GSO FSS
    and BSS systems.

***Editorial Note to Table S22-1A:*** The US proposal included in Table
S22-1A for the 3 meter and 10 meter antenna diameters reflects in
tabular form single-entry values derived from Curve B from Figures 1 and
2, respectively, in Section 3.1.2.1.4(c) of the draft CPM Report. An
alternative set of curves (Curve A from Figures 1 and 2, respectively),
is also included in Section 3.1.2.1.4(c) in the draft CPM Report. A set
of single entry values based on the alternative set of curves, which is
not supported by the US, is provided in tabular form below:

+-----------+--------------+---------------+--------+-----------------+
| *\        | *\           | *Percentage\  | *Refe  | *Reference      |
| Frequency | EPFD~down~   | of time       | rence\ | antenna\        |
| band\     | dB(W/m^2^)*  | during which  | band   | diameter, and   |
| (GHz)*    |              | EPFD~down~    | width\ | reference\      |
|           |              | may not be    | (kHz)* | radiation       |
|           |              | exceeded*     |        | pattern^2^*     |
+-----------+--------------+---------------+--------+-----------------+
| *10.7 --  | *-190.4*     | *0*           | *40*   | *3 m Rec.       |
| 11.7;\    |              |               |        | S.\[4/57\]*     |
| 11.7 --   | *-189.4*     | *90*          |        |                 |
| 12.2\     |              |               |        |                 |
| in Region | *-187.9*     | *99*          |        |                 |
| 2;\       |              |               |        |                 |
| 12.2 --   | *-187.4*     | *99.5*        |        |                 |
| 12.5\     |              |               |        |                 |
| in Region | *-182.4*     | *99.725*      |        |                 |
| 3 and\    |              |               |        |                 |
| 12.5 --   | *-182*       | *99.857*      |        |                 |
| 12.75\    |              |               |        |                 |
| in        | *-168*       | *99.971*      |        |                 |
| Regions   |              |               |        |                 |
| 1\        | *-164*       | *99.989*      |        |                 |
| and 3*    |              |               |        |                 |
|           | *-161.8*     | *99.9957*     |        |                 |
|           |              |               |        |                 |
|           | *-160*       | *99.9991*     |        |                 |
|           |              |               |        |                 |
|           | *-160*       | *100*         |        |                 |
+-----------+--------------+---------------+--------+-----------------+
|           | *-195.4*     | *0*           | *40*   | *10 m Rec.      |
|           |              |               |        | S.\[4/57\]*     |
|           | *-195.4*     | *99*          |        |                 |
|           |              |               |        |                 |
|           | *-190*       | *99.65*       |        |                 |
|           |              |               |        |                 |
|           | *-190*       | *99.714*      |        |                 |
|           |              |               |        |                 |
|           | *-173*       | *99.99*       |        |                 |
|           |              |               |        |                 |
|           | *-160*       | *99.999*      |        |                 |
|           |              |               |        |                 |
|           | *-160*       | *100*         |        |                 |
+-----------+--------------+---------------+--------+-----------------+

*No agreement was reached within the ITU-R and work is continuing in an
effort to reach a compromise between the two sets of limits, or to agree
on other mutually acceptable solutions.*

**ADD TABLE S22-1B^1^**

Limits to the EPFD~down~ radiated by non-GSO FSS systems in certain
frequency

bands

+----------+---------+-------------------+-----------+---------------+
| **F      | **EPFD  | **Percentage of   | **        | **Reference   |
| requency | ~down~\ | time during which | Reference | antenna       |
| Band     | dB(W/   | EPFD~down~ may    | Bandwidth | diameter, and |
| (GHz)**  | m^2^)** | not be exceeded** | (kHz)**   | reference     |
|          |         |                   |           | pattern ^2^** |
+----------+---------+-------------------+-----------+---------------+
| 1        | --175.4 | 0\                | 40 ^3^    | 1 m Rec.      |
| 7.8-18.6 |         | 90                |           | S.\[4/57\]    |
|          | -       |                   |           |               |
|          | -175.4\ | 99                |           |               |
|          | -       |                   |           |               |
|          | -172.5\ | 99.714            |           |               |
|          | --167\  |                   |           |               |
|          | --164\  | 99.971\           |           |               |
|          | --164   | 100               |           |               |
+----------+---------+-------------------+-----------+---------------+
| 1        | --178.4 | 0                 | 40 ^3^    | 2 m Rec.      |
| 7.8-18.6 |         |                   |           | S.\[4/57\]    |
|          | -       | 99.4              |           |               |
|          | -178.4\ |                   |           |               |
|          | -       | 99.9              |           |               |
|          | -171.4\ |                   |           |               |
|          | -       | 99.913            |           |               |
|          | -170.5\ |                   |           |               |
|          | --166\  | 99.971            |           |               |
|          | --164\  |                   |           |               |
|          | --164   | 99.977            |           |               |
|          |         |                   |           |               |
|          |         | 100               |           |               |
+----------+---------+-------------------+-----------+---------------+
| 1        | -       | 0\                | 40 ^3^    | 5 m Rec.      |
| 7.8-18.6 | -185.4\ | 99.8\             |           | S.\[4/57\]    |
|          | -       | 99.8              |           |               |
|          | -185.4\ |                   |           |               |
|          | --180\  | 99.943\           |           |               |
|          | --180\  | 99.943\           |           |               |
|          | --172\  | 99.998\           |           |               |
|          | --164\  | 100               |           |               |
|          | --164   |                   |           |               |
+----------+---------+-------------------+-----------+---------------+

^1^ For certain receive earth stations, see also ADD **S9.7A** and ADD
**S9.7B**.

^2^ Under this Section, reference patterns are to be used only for the
calculation of interference from non-GSO FSS systems into GSO FSS and
BSS systems.

^3^ For non-GSO emission bandwidths greater than 40 kHz, the EPFD~down~
limits may be scaled by

adding 10 log(non-GSO emission bandwidth / 40 kHz) in a reference
bandwidth equal to the

emission bandwidth.

**ADD TABLE S22-1C^1^**

Limits to the EPFD~down~ radiated by non-GSO FSS systems in certain
frequency

bands

+----------+---------+-------------------+-----------+----------------+
| **F      | **EPFD~ | **Percentage of   | **        | **Reference    |
| requency | down~** | time during which | Reference | antenna        |
| Band     |         | EPFD~down~ may    | Bandwidth | diameter, and  |
| (GHz)**  | **dB(W/ | not be exceeded** | (kHz)**   | reference      |
|          | m^2^)** |                   |           | pattern**      |
+----------+---------+-------------------+-----------+----------------+
| 1        | -       | 0\                | 40^3^     | 70 cm Rec.     |
| 9.7-20.2 | -187.4\ | 71.429            |           | S.\[4/57\]     |
|          | --182\  |                   |           |                |
|          | --172\  | 97.143            |           |                |
|          | --154\  |                   |           |                |
|          | --154   | 99.983\           |           |                |
|          |         | 100               |           |                |
+----------+---------+-------------------+-----------+----------------+
| 1        | -       | 0                 | 40 ^3^    | 90 cm Rec.     |
| 9.7-20.2 | -190.4\ |                   |           | S.\[4/57\]     |
|          | -       | 91                |           |                |
|          | -181.4\ |                   |           |                |
|          | -       | 99.8              |           |                |
|          | -170.4\ |                   |           |                |
|          | -       | 99.8              |           |                |
|          | -168.6\ |                   |           |                |
|          | --165\  | 99.943            |           |                |
|          | --160\  |                   |           |                |
|          | --154\  | 99.943            |           |                |
|          | --154   |                   |           |                |
|          |         | 99.997\           |           |                |
|          |         | 100               |           |                |
+----------+---------+-------------------+-----------+----------------+
| 1        | -198.4  | 0                 | 40 ^3^    | 2.5 m Rec.     |
| 9.7-20.2 |         |                   |           | S.\[4/57\]     |
|          | -190.4  | 90                |           |                |
|          |         |                   |           |                |
|          | -171.4  | 99.99             |           |                |
|          |         |                   |           |                |
|          | -169.4  | 99.99             |           |                |
|          |         |                   |           |                |
|          | -166    | 99.99714          |           |                |
|          |         |                   |           |                |
|          | -160    | 99.99714          |           |                |
|          |         |                   |           |                |
|          | -154    | 99.99943          |           |                |
|          |         |                   |           |                |
|          | -154    | 100               |           |                |
+----------+---------+-------------------+-----------+----------------+

For certain receive earth stations, see also ADD **S9.7A** and ADD
**S9.7B**.

^2^ Under this Section, reference patterns are to be used only for the
calculation of interference from non-GSO FSS systems into GSO FSS and
BSS systems.

^3^ For non-GSO emission bandwidths greater than 40 kHz, the EPFD~down~
limits may be

scaled by adding 10 log(non-GSO emission bandwidth / 40 kHz) in a
reference

bandwidth equal to the emission bandwidth.

***Editorial Note to Table S22-1C:** The table below contains the
single-entry EPFD~down~ masks for the 2.5 and 5 meter antennas in the
19.7-20.2 GHz band supported by the majority of participants at the
final JTG 4-9-11 meeting and included in the draft CPM Report.*

+-----------+--------------+---------------+--------+-----------------+
| *         | *\           | *Percentage\  | *Refe  | *Reference      |
| Frequency | EPFD~down~   | of time       | rence\ | antenna\        |
| band\     | dB(W/m^2^)*  | during which  | band   | diameter, and   |
| (GHz)*    |              | EPFD~down~    | width\ | reference\      |
|           |              | may not be    | (kHz)* | radiation       |
|           |              | exceeded*     |        | pattern^2^*     |
+-----------+--------------+---------------+--------+-----------------+
| *1        | *-196.4*     | *0*           | *40*   | *2.5 m Rec.     |
| 9.7-20.2* |              |               |        | S.\[4/57\]*     |
|           | *-154.35*    | *99.9971*     |        |                 |
|           |              |               |        |                 |
|           | *-154.35*    | *100*         |        |                 |
+-----------+--------------+---------------+--------+-----------------+
| *1        | *-200.4*     | *0*           | *40*   | *5 m Rec. S     |
| 9.7-20.2* |              |               |        | \[4/57\]*       |
|           | *-195*       | *66*          |        |                 |
|           |              |               |        |                 |
|           | *-189.4*     | *90*          |        |                 |
|           |              |               |        |                 |
|           | *-189*       | *92*          |        |                 |
|           |              |               |        |                 |
|           | *-184*       | *97.143*      |        |                 |
|           |              |               |        |                 |
|           | *-175*       | *99.886*      |        |                 |
|           |              |               |        |                 |
|           | *-163.5*     | *99.99*       |        |                 |
|           |              |               |        |                 |
|           | *-154.35*    | *99.999*      |        |                 |
|           |              |               |        |                 |
|           | *-154.35*    | *100*         |        |                 |
+-----------+--------------+---------------+--------+-----------------+

*Due to the late introduction of this proposal, nearing the end of the
meeting, the U.S. was unable to agree to these masks. Nevertheless, the
U.S. is continuing to work towards resolving the differences between the
two masks for the 2.5 meter antenna. It is noted that the U.S. does not
currently see the need for an EPFD~down~ mask for the 5 meter antenna
diameter in this band, and is of the view that the final 2.5 meter mask
should also protect antenna sizes up to 3.5 meters.*

**ADD TABLE S22-1D**

Limits to the EPFD~down~ radiated by non-GSO FSS systems in certain
frequency bands

30cm, 45cm and 60cm BSS antennas

  ------------ ------------ --------------- ------------ --------------------
  Frequency    EPFD~down~   Percentage\     Reference\   Reference antenna\
  band\        dB(W/m^2^)   of time during  bandwidth\   diameter, and
  (GHz)        ^1^          which           (kHz)        reference\
                            EPFD~down~ may               radiation pattern^2^
                            not be exceeded              

               -165.841     0.000                        

  11.7 -- 12.5 -165.541     25.000                       
  GHz                                                    

  In Region 1  -164.041     96.000                       30 cm

  11.7 -- 12.2 -158.600     98.857          40           DNR ITU-R BO.\
  GHz and                                                \[Doc. 11/137

  12.5 --      -158.600     99.429                       Annex 1\]
  12.75 GHz                                              

  In Region 3  -158.330     99.429                       

  12.2 -- 12.7 -158.330     100.000                      
  GHz                                                    

  In Region 2                                            

               -175.441     0.000                        

  11.7 -- 12.5 -172.441     66.000                       
  GHz                                                    

  In Region 1  -169.441     97.750                       45 cm

  11.7 -- 12.2 -164.000     99.357          40           DNR ITU-R BO.\
  GHz and                                                \[Doc. 11/137

  12.5 --      -160.750     99.809                       Annex 1\]
  12.75 GHz                                              

  In Region 3  -160.000     99.986                       

  12.2 -- 12.7 -159.900     100.000                      
  GHz                                                    

  In Region 2                                            

               -176.441     0.000                        

  11.7 -- 12.5 -173.191     97.800                       
  GHz                                                    

  In Region 1  -167.750     99.371                       60 cm

  11.7 -- 12.2 -162.000     99.886          40           DNR ITU-R BO.\[Doc.
  GHz and                                                11/137

  12.5 --      -161.000     99.943                       Annex 1\]
  12.75 GHz                                              

  In Region 3  -160.200     99.971                       

  12.2 -- 12.7 -160.000     99.997                       
  GHz                                                    

  In Region 2  -159.900     100.000                      
  ------------ ------------ --------------- ------------ --------------------

^1^ For checking compliance with these limits, the BR software will use
increments of 0.1 dB and will test against the fractionally more severe
value: for example where the EPFD~down~ limit is ‑165.841 dB(W/m^2^/40
kHz) the software will test against a criterion of -165.9 dB(W/m^2^/40
kHz).

^2^ Under this Section, reference patterns are to be used only for the
calculation of interference from non-GSO FSS systems into GSO FSS and
BSS systems.

**ADD TABLE S22-1E**

Limits to the EPFD~down~ radiated by non-GSO FSS systems in certain
frequency bands

90cm and 120cm BSS antennas

  ------------ ------------ --------------- ------------ --------------------
  Frequency    EPFD~down~   Percentage\     Reference\   Reference antenna\
  band\        dB(W/m^2^)   of time during  bandwidth\   diameter, and
  (GHz)        ^1^          which           (kHz)        reference\
                            EPFD~down~ may               radiation pattern^2^
                            not be exceeded              

               -178.94      0.000                        

  11.7 -- 12.5 -178.44      33.000                       
  GHz                                                    

  In Region 1  -176.44      98.000                       

  11.7 -- 12.2 -171.00      99.429                       90 cm
  GHz and                                                

  12.5 --      -165.50      99.714          40           DNR ITU-R BO.\
  12.75 GHz                                              \[Doc. 11/137

  In Region 3  -163.00      99.857                       Annex 1\]

  12.2 -- 12.7 -161.00      99.943                       
  GHz                                                    

  In Region 2  -160.00      99.991                       

               -159.90      100.000                      

               -182.440     0.000                        

               -180.690     90.000                       

               -179.190     98.900                       

  11.7 -- 12.5 -178.440     98.900                       
  GHz                                                    

  In Region 1  -174.940     99.500                       

  11.7 -- 12.2 -173.750     99.680                       120 cm
  GHz and                                                

  12.5 --      -173.000     99.680          40           DNR ITU-R BO.\
  12.75 GHz                                              \[Doc. 11/137

  In Region 3  -169.500     99.850                       Annex 1\]

  12.2 -- 12.7 -167.800     99.915                       
  GHz                                                    

  In Region 2  -164.000     99.940                       

               -161.900     99.970                       

               -161.000     99.990                       

               -160.400     99.998                       

               -159.900     100                          
  ------------ ------------ --------------- ------------ --------------------

^1^ For checking compliance with these limits, the BR software will use
increments of 0.1 dB and will test against the fractionally more severe
value: for example where the EPFD~down~ limit is ‑165.841 dB(W/m^2^/40
kHz) the software will test against a criterion of -165.9 dB(W/m^2^/40
kHz).

^2^ Under this Section, reference patterns are to be used only for the
calculation of interference from non-GSO FSS systems into GSO FSS and
BSS systems.

**ADD TABLE S22-1F**

Limits to the EPFD~down~ radiated by non-GSO FSS systems in certain
frequency bands

180cm and 240cm BSS antennas

  ------------ ------------ --------------- ------------ --------------------
  Frequency    EPFD~down~   Percentage\     Reference\   Reference antenna\
  band\        dB(W/m^2^)   of time during  bandwidth\   diameter, and
  (GHz)        ^1^          which           (kHz)        reference\
                            EPFD~down~ may               radiation pattern^2^
                            not be exceeded              

               -198.24      0                            

  11.7 -- 12.5 -198.24      96.92                        
  GHz                                                    

  In Region 1  -196         97.96                        180 cm

  11.7 -- 12.2 -192         99.03           4            DNR ITU-R BO.
  GHz and                                                

  12.5 --      -188         99.53                        \[Doc. 11/137
  12.75 GHz                                              

  In Region 3  -185         99.73                        Annex 1\]

  12.2 -- 12.7 -182         99.85                        
  GHz                                                    

  In Region 2  -178.8       99.91                        

               -178.8       100                          

               -200.4       0                            

               -200.4       99.41                        

  11.7 -- 12.5 -198         99.62                        
  GHz                                                    

  In Region 1  -195         99.78                        

  11.7 -- 12.2 -193         99.85                        240 cm
  GHz and                                                

  12.5 --      -190         99.91           4            DNR ITU-R BO.
  12.75 GHz                                              

  In Region 3  -187         99.95                        \[Doc. 11/137

  12.2 -- 12.7 -184         99.97                        Annex 1\]
  GHz                                                    

  In Region 2  -184         100                          
  ------------ ------------ --------------- ------------ --------------------

^1^ For checking compliance with these limits, the BR software will use
increments of 0.1 dB and will test against the fractionally more severe
value: for example where the EPFD~down~ limit is ‑165.841 dB(W/m^2^/40
kHz) the software will test against a criterion of -165.9 dB(W/m^2^/40
kHz).

^2^ Under this Section, reference patterns are to be used only for the
calculation of interference from non-GSO FSS systems into GSO FSS and
BSS systems.

***Editorial Note to Table S22-1F:** Recognizing the work performed to
date by the ITU-R and the masks included in Chapter 3 of the CPM Report,
further analysis is being conducted on the proposed BSS EPFD~down~ masks
for the 180 cm and 240 cm antenna sizes. For example, the possibility of
a latitude dependent EPFD~down~ level for 100 percent of the time is
under study with a view to relaxing the 100% EPFD~down~ level of the
U.S. proposed masks in Table **S22-1F**.*

  -------------- --------------------------------------------------------
  **ADD S22.5C** 2\) The equivalent power flux-density^XX^, EPFD~up~ ,
                 produced at any point in the geostationary-satellite
                 orbit by emissions from all the earth stations in a
                 non-geostationary-satellite system in the
                 fixed-satellite service in the frequency bands listed in
                 Table **S22‑2**, for all conditions and for all methods
                 of modulation, shall not exceed the limits given in
                 Table **S22-2** for the specified percentages of time.
                 These limits relate to the equivalent power flux‑density
                 which would be obtained under free-space propagation
                 conditions, into a reference antenna and in the
                 reference bandwidth specified in Table **S22-2**, for
                 all pointing directions towards the Earth\'s surface
                 visible from the geostationary-satellite orbit.

  -------------- --------------------------------------------------------

**ADD** TABLE **S22-2**

Limits to the EPFD~up~ radiated by non-GSO FSS systems in certain
frequency bands

+-------------+---------+--------------+---------+------------------+
| Frequency   | EP      | Percentage   | Re      | Reference        |
| band\       | FD~up~\ | of time      | ference | antenna          |
| (GHz)       | dB(     | during which | ban     | beamwidth and    |
|             | W/m^2^) | EPFD~up~ may | dwidth\ | reference        |
|             |         | not be       | (kHz)   | radiation        |
|             |         | exceeded     |         | pattern ^2^      |
+-------------+---------+--------------+---------+------------------+
| 12.50 -     | -160    | 100          | 40      | 4 degrees\       |
| 12.75\      |         |              |         | ITU-R S.672, Ls  |
| 12.75 -     |         |              |         | = -20[^4]        |
| 13.25\      |         |              |         |                  |
| 13.75 -     |         |              |         |                  |
| 14.5        |         |              |         |                  |
+-------------+---------+--------------+---------+------------------+
| 17.3-17.8   | -160    | 100          | 40      | 4 degrees\       |
| Region 1    |         |              |         | ITU-R S.672, Ls  |
| and Region  |         |              |         | = -20[^5]        |
| 3^3^        |         |              |         |                  |
|             |         |              |         |                  |
| 17.8-18.1   |         |              |         |                  |
+-------------+---------+--------------+---------+------------------+
| 27.5 --     | -162    | 100          | 40      | 1.55 degrees\    |
| 28.6        |         |              |         | ITU-R S.672, Ls  |
|             |         |              |         | = -10^1^         |
+-------------+---------+--------------+---------+------------------+
| 29.5 --     | -162    | 100          | 40      | 1.55 degrees\    |
| 30.0        |         |              |         | ITU-R S.672, Ls  |
|             |         |              |         | = -10^1^         |
+-------------+---------+--------------+---------+------------------+
| ^1^ For the |         |              |         |                  |
| case of     |         |              |         |                  |
| Ls=-10, the |         |              |         |                  |
| values      |         |              |         |                  |
| a=1.83 and  |         |              |         |                  |
| b=6.32      |         |              |         |                  |
| should be   |         |              |         |                  |
| used in the |         |              |         |                  |
| equations   |         |              |         |                  |
| in Annex 1  |         |              |         |                  |
| of          |         |              |         |                  |
| Rec         |         |              |         |                  |
| ommendation |         |              |         |                  |
| ITU-R S.672 |         |              |         |                  |
| for         |         |              |         |                  |
| single-feed |         |              |         |                  |
| circular    |         |              |         |                  |
| beams. In   |         |              |         |                  |
| all cases   |         |              |         |                  |
| of Ls, the  |         |              |         |                  |
| parabolic   |         |              |         |                  |
| main beam   |         |              |         |                  |
| equation    |         |              |         |                  |
| should      |         |              |         |                  |
| start at    |         |              |         |                  |
| zero.       |         |              |         |                  |
|             |         |              |         |                  |
| 2.  Under   |         |              |         |                  |
|     this    |         |              |         |                  |
|             |         |              |         |                  |
|    Section, |         |              |         |                  |
|     this    |         |              |         |                  |
|             |         |              |         |                  |
|   reference |         |              |         |                  |
|     pattern |         |              |         |                  |
|     is to   |         |              |         |                  |
|     be used |         |              |         |                  |
|     only    |         |              |         |                  |
|     for the |         |              |         |                  |
|             |         |              |         |                  |
| calculation |         |              |         |                  |
|     of      |         |              |         |                  |
|     i       |         |              |         |                  |
| nterference |         |              |         |                  |
|     from    |         |              |         |                  |
|     non-GSO |         |              |         |                  |
|     FSS     |         |              |         |                  |
|     systems |         |              |         |                  |
|     into    |         |              |         |                  |
|     GSO FSS |         |              |         |                  |
|             |         |              |         |                  |
|    systems. |         |              |         |                  |
|             |         |              |         |                  |
| 3           |         |              |         |                  |
| .  Although |         |              |         |                  |
|     the     |         |              |         |                  |
|             |         |              |         |                  |
|   17.3-17.8 |         |              |         |                  |
|     GHz     |         |              |         |                  |
|     band is |         |              |         |                  |
|     not     |         |              |         |                  |
|             |         |              |         |                  |
|   allocated |         |              |         |                  |
|     to      |         |              |         |                  |
|     non-GSO |         |              |         |                  |
|     FSS in  |         |              |         |                  |
|     Region  |         |              |         |                  |
|     2, this |         |              |         |                  |
|             |         |              |         |                  |
|    EPFD~up~ |         |              |         |                  |
|     level   |         |              |         |                  |
|     also    |         |              |         |                  |
|     applies |         |              |         |                  |
|     to the  |         |              |         |                  |
|             |         |              |         |                  |
|   frequency |         |              |         |                  |
|     band    |         |              |         |                  |
|             |         |              |         |                  |
|   17.3-17.8 |         |              |         |                  |
|     GHz to  |         |              |         |                  |
|     protect |         |              |         |                  |
|     BSS     |         |              |         |                  |
|     feeder  |         |              |         |                  |
|     links   |         |              |         |                  |
|     in      |         |              |         |                  |
|     Region  |         |              |         |                  |
|     2 from  |         |              |         |                  |
|     non-GSO |         |              |         |                  |
|     FSS     |         |              |         |                  |
|     Ear     |         |              |         |                  |
| th-to-space |         |              |         |                  |
|     tr      |         |              |         |                  |
| ansmissions |         |              |         |                  |
|     in      |         |              |         |                  |
|     Regions |         |              |         |                  |
|     1 and   |         |              |         |                  |
|     3.      |         |              |         |                  |
+-------------+---------+--------------+---------+------------------+

  -------------- --------------------------------------------------------
  **ADD S22.5D** 3\) The equivalent power flux-density^XX^, EPFD~is~,
                 produced at any point in the geostationary-satellite
                 orbit by emissions from all the space stations in a
                 non-geostationary-satellite system in the
                 fixed-satellite service in the frequency bands listed in
                 Table **S22‑3**, including emissions from a reflecting
                 satellite, for all conditions and for all methods of
                 modulation, shall not exceed the limits given in Table
                 **S22-3** for the specified percentages of time. These
                 limits relate to the equivalent power flux‑density which
                 would be obtained under free-space propagation
                 conditions into a reference antenna and in the reference
                 bandwidth specified in Table **S22-3**, for all pointing
                 directions towards the Earth\'s surface visible from the
                 geostationary-satellite orbit.

  -------------- --------------------------------------------------------

**ADD** TABLE **S22-3**

Limits to the EPFD~is~ radiated by non-GSO FSS systems in certain
frequency bands

+-------------+---------+--------------+---------+------------------+
| Frequency   | EP      | Percentage   | Re      | Reference        |
| band\       | FD~is~\ | of time      | ference | antenna          |
| (GHz)       | dB(     | during which | ban     | beamwidth and    |
|             | W/m^2^) | EPFD~is~ may | dwidth\ | reference        |
|             |         | not be       | (kHz)   | radiation        |
|             |         | exceeded     |         | pattern ^1^      |
+-------------+---------+--------------+---------+------------------+
| 10.7 - 11.7 | -160    | 100          | 40      | 4 degrees\       |
| (Region 1)  |         |              |         | ITU-R S.672, Ls  |
|             |         |              |         | = -20            |
| 12.5 -      |         |              |         |                  |
| 12.75       |         |              |         |                  |
| (Region 1)  |         |              |         |                  |
|             |         |              |         |                  |
| 12.7 -      |         |              |         |                  |
| 12.75       |         |              |         |                  |
| (Region 2)  |         |              |         |                  |
+-------------+---------+--------------+---------+------------------+
| 17.8 - 18.4 | -160    | 100          | 40      | 4 degrees\       |
|             |         |              |         | ITU-R S.672, Ls  |
|             |         |              |         | = -20            |
+-------------+---------+--------------+---------+------------------+

Under this Section, this reference pattern is to be used only for the
calculation of interference from non-GSO FSS systems into GSO FSS
systems.

  -------------- --------------------------------------------------------
  **ADD S22.5E** The limits given in Tables **S22-1A** through **S22-1F**
                 may be exceeded on the territory of any country whose
                 Administration has so agreed.

  -------------- --------------------------------------------------------

  -------------- --------------------------------------------------------
  **ADD S22.5F** The limits specified in No **S22.5B** to **S22.5D**
                 apply to non-GSO FSS systems for which complete
                 notification information has been received after 22
                 November 1997.

  **ADD S22.5G** An administration operating a non‑GSO FSS system which
                 is in compliance with the limits in No. **S22.5B** to
                 **S22.5D** (see also Resolution WWW) shall be considered
                 as having fulfilled its obligations under No. **S22.2**
                 with respect to any GSO network, irrespective of the
                 dates of receipt by the Bureau of the complete
                 notification information for the non‑GSO system and of
                 the complete coordination information for the GSO
                 network, provided that the EPFD~down~ radiated by the
                 non-GSO FSS system into any operating GSO FSS earth
                 station does not exceed the operational limits given in
                 Table **S22-4**, when the gain of this earth station is
                 equal to or greater than the corresponding value given
                 in Table **S22-4** for the corresponding orbital
                 inclination of the GSO FSS satellite as given in Table
                 **S22-4**.
  -------------- --------------------------------------------------------

**ADD** TABLE **S22-4**

Operational Limits to the EPFD~down~ radiated by non-GSO FSS\
systems in certain frequency bands

+-----------+-----------+-----------+-----------+-----------+-----------+
| **        | **EPF     | **P       | **        | **Receive | **Orbital |
| Frequency | D~down~** | ercentage | Reference | GSO earth | in        |
| Band      |           | of time   | Bandwidth | station   | clination |
| (GHz)**   | **dB(     | during    | (kHz)**   | antenna   | of GSO    |
|           | W/m^2^)** | which     |           | Gain      | sa        |
|           |           | E         |           | (dBi)**   | tellite** |
|           |           | PFD~down~ |           |           |           |
|           |           | may not   |           |           |           |
|           |           | be        |           |           |           |
|           |           | e         |           |           |           |
|           |           | xceeded** |           |           |           |
+-----------+-----------+-----------+-----------+-----------+-----------+
| 10.7 -    | -163      | 100       | 40        | 59        | 2.5°      |
| 12.75 GHz |           |           |           |           |           |
|           | TBD       | 100       | 40        | 49        | 2.5°      |
|           |           |           |           |           |           |
|           | \[-160\]  | 100       | 40        | 59        | \>2.5 and |
|           |           |           |           |           | 4.5°      |
+-----------+-----------+-----------+-----------+-----------+-----------+
| 19.7 -    | -157      | 100       | 40^2^     | 55        | 2.5       |
| 20.2 GHz  |           |           |           |           |           |
|           | -157      | 100       | 40^2^     | 43^1^     | 2.5       |
+-----------+-----------+-----------+-----------+-----------+-----------+

^1^ The operational limit applies only to non-GSO systems operating at
altitudes of 7000 km or above in order to protect GSO FSS systems
employing adaptive coding.

^2^ For non-GSO emission bandwidths greater than 40 kHz, the EPFD~down~
limits may be scaled by adding 10 log(non-GSO emission bandwidth / 40
kHz) in a reference bandwidth equal to the emission bandwidth.

  -------------- --------------------------------------------------------
  **ADD S22.5H** In case of *force majeure*, telecommand and ranging
                 carriers transmitted to non-geostationary satellites in
                 the fixed-satellite service are not subject to the
                 limits given in Table **S22-2**.

  -------------- --------------------------------------------------------

IV. **[Draft Proposals of IWG-5 (Informal Working Group on Space
    Science, Radio Astronomy, Maritime Mobile and Aeronautical Service
    Matters]{.underline}** (WAC/084(24.06.99))

**United States of America**

**\[DRAFT\] PROPOSALS FOR THE WORK OF THE CONFERENCE**

**Proposal for Agenda Item 1.10**

> to consider the results of ITU-R studies carried out in accordance
> with Resolution 218 (WRC-97) and take appropriate action on this
> subject

**Background Information:** Resolution 218 requests the ITU-R to develop
assumptions and methodologies, and gather information on actual GMDSS
and AMS(R)S communication traffic usage and growth, in order to
determine the future spectrum requirements for the provision of
distress, urgency and safety communications in the GMDSS by the
mobile-satellite service and AMS(R)S communications with priority 1 to 6
of Article S44.

The work to define future spectrum requirements of AMS(R)S has not been
completed under Resolution 218. This can easily be seen from the
chairman's report from the last meeting of Working Party 8D which
states,

"Two studies have been performed that used significantly different
assumptions to calculate the future spectrum requirements of AMS(R)S"
and "Significant disagreement exists on the approaches and methodologies
to be used in such studies."

One study, from ICAO and IATA established that the future requirements
of AMS(R)S will be 10.8 MHz by 2010. A second study, prepared by one
administration, indicated that the future spectrum requirements could be
accommodated in only 1 MHz of spectrum by 2025. Until a consensus
agreement has been reached, it is premature to propose any regulatory
solution, until the scope and magnitude of the problem can be more
clearly defined.

As there is no agreement at the ITU-R regarding the future spectrum
requirements of AMS(R)S, it is premature to make any changes to the
Radio Regulations until the work is completed and a consensus is
reached. The US does support the completion of the ITU-R studies called
for under Resolution 218, which may lead to appropriate regulatory
action based on this knowledge.

At a recent regional WRC preparatory meeting, one administration
proposed to modify part of the text in S5.357A as follows:

> "...AMS(R)S with priority 1 to 6 in Article S44 shall have priority
> access and immediate availability, by pre-emption if necessary, over
> all other mobile-satellite communications operating within ~~a~~
> [any]{.underline} network...."

This seemingly small and innocuous change has tremendous economic and
operation implications to any and all MSS systems who use or wish to use
these bands. By changing, "within a network" to "within any network",
the concept of inter-system coordination and "traffic sharing" is now
introduced. The implications associated with this significant change are
not at all understood and will need extensive study at the ITU-R.

There was also a view expressed that a proposal of NOC to the Table of
Allocations and associated RR footnotes does not ensure that aviation
will continue to have access to the generic MSS spectrum in the bands
1525 -- 1559 MHz and 1626.5 -- 1660.5 MHz. This current status may limit
or preclude the expansion of aviation into the space based
communications services. This expansion can satisfy aviation's needs for
worldwide spectrum and continuous communications and enhance aviation
safety.

**Proposal:**

USA/1.10/1

**NOC**

**1525-1559 MHz**

+-----------------------+-----------------------+-----------------------+
| **Allocation to       |                       |                       |
| Services**            |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **Region 1**          | **Region 2**          | **Region 3**          |
+-----------------------+-----------------------+-----------------------+
| **1525-1530**         | **1525-1530**         | **1525-1530**         |
|                       |                       |                       |
| SPACE OPERATION       | SPACE OPERATION       | SPACE OPERATION       |
|                       |                       |                       |
| (space-to-Earth)      | (space-to-Earth)      | (space-to-Earth)      |
|                       |                       |                       |
| FIXED                 | MOBILE-SATELLITE      | FIXED                 |
|                       |                       |                       |
| MOBILE-SATELLITE      | (space-to-Earth)      | MOBILE-SATELLITE      |
|                       |                       |                       |
| (space-to-Earth)      | Earth                 | (space-to-Earth)      |
|                       | exploration-satellite |                       |
| Earth                 |                       | Earth                 |
| exploration-satellite | Fixed                 | exploration-satellite |
|                       |                       |                       |
| Mobile except         | Mobile S5.343         | Mobile S5.349         |
| aeronautical mobile   |                       |                       |
| S5.349                | S5.341 S5.351 S5.354  | S5.341 S5.351 S5.352A |
|                       |                       | S5.354                |
| S5.341 S5.342 S5.350  |                       |                       |
| S5.351 S5.352A S5.354 |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **1530-1535**         | **1530-1535**         |                       |
|                       |                       |                       |
| SPACE OPERATION       | SPACE OPERATION       |                       |
|                       |                       |                       |
| (space-to-Earth)      | (space-to-Earth)      |                       |
|                       |                       |                       |
| MOBILE-SATELLITE      | MOBILE-SATELLITE      |                       |
|                       |                       |                       |
| (space-to-Earth)      | (space-to-Earth)      |                       |
| S5.353A               | S5.353A               |                       |
|                       |                       |                       |
| Earth                 | Earth                 |                       |
| exploration-satellite | exploration-satellite |                       |
|                       |                       |                       |
| Fixed                 | Fixed                 |                       |
|                       |                       |                       |
| Mobile except         | Mobile S5.343         |                       |
| aeronautical mobile   |                       |                       |
|                       | S5.341 S5.351 S5.354  |                       |
| S5.341 S5.342 S5.351  |                       |                       |
| S5.354                |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **1535-1559**         |                       |                       |
|                       |                       |                       |
| MOBILE-SATELLITE      |                       |                       |
| (space-to-Earth)      |                       |                       |
|                       |                       |                       |
| S5.341 S5.351 S5.353A |                       |                       |
| S5.354 S5.355 S5.356  |                       |                       |
| S5.357 S5.357A S5.359 |                       |                       |
| S5.362A               |                       |                       |
+-----------------------+-----------------------+-----------------------+

**Reason**: As there is no agreement at the ITU-R regarding the future
spectrum requirements of AMS(R)S, it is premature to make any changes to
the Radio Regulations until the work is completed and a consensus is
reached. The US does support the completion of the ITU-R studies called
for under Resolution 218, which may lead to appropriate regulatory
action based on this knowledge.

***Note:** There was a view expressed that S5.353A should be modified to
ensure that the Aviation community will have continuous and guaranteed
access to this spectrum in the future.*

USA/1.10/2

**NOC**

**1626.5-1660.5**

+-----------------------+-----------------------+-----------------------+
| **Allocation to       |                       |                       |
| Services**            |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **Region 1**          | **Region 2**          | **Region 3**          |
+-----------------------+-----------------------+-----------------------+
| **1626.5-1660**       |                       |                       |
|                       |                       |                       |
| MOBILE-SATELLITE      |                       |                       |
| (Earth -to-space)     |                       |                       |
|                       |                       |                       |
| S5.341 S5.351 S5.353A |                       |                       |
| S5.354 S5.355 S5.357A |                       |                       |
| S5.359 S5.362A S5.374 |                       |                       |
| S5.375 S5.376         |                       |                       |
+-----------------------+-----------------------+-----------------------+

**Reason**: As there is no agreement at the ITU-R regarding the future
spectrum requirements of AMS(R)S, it is premature to make any changes to
the Radio Regulations until the work is completed and a consensus is
reached. The US does support the completion of the ITU-R studies called
for under Resolution 218, which may lead to appropriate regulatory
action based on this knowledge.

***Note:** There was a view expressed that S5.357A should be modified to
ensure that the Aviation community will have continuous and guaranteed
access to this spectrum in the future.*

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

**V.** **[Draft Proposals of IWG-6 (Informal Working Group on Appendices
30 and 30A Matters (Broadcasting-Satellite Service)]{.underline}**
(WAC/085(24.06.99))

**United States of America**

\[DRAFT\] PROPOSALS FOR THE WORK OF THE CONFERENCE

Proposals for Agenda Item 1.20

## 

## *to consider the issues related to the application of Nos. **S9.8**, **S9.9** and **S9.17** and the corresponding parts of Appendix **S5** with respect to Appendices **S30** and **S30A**, with a view to possible deletion of Articles **6** and **7** of Appendices **S30** and **S30A**, also taking into consideration Recommendation **35 (WRC-95);***

**Background Information:** Annex 1 to Appendix **S30** of the Radio
Regulations specifies limits for determining whether a service is
affected by a proposed modification to the BSS Plan or when it is
necessary to seek the agreement of any other administration. Section 5
of Annex 1 specifies limits to the change in the PFD to protect the
terrestrial services of administrations in Regions 1 and 3 from
modifications to the Region 2 Plan.

Section 5c specifies the PFD limits for administrations in Region 1 east
of longitude 30°E. This PFD limit is very tight at low angles of
elevation. In order to meet this PFD limit the Region 2 BSS spacecraft
EIRP towards Alaska must be significantly lower compared to the
continental United States. As a result the provision of BSS service to
Alaska, from U.S. orbital assignments at 101W, 110W and 119W, requires
larger BSS receive dishes, in some cases as large as 1.8 m. This will
also be the case for Region 2 administrations that propose to modify
their assignments to provide service to the United States. The US
Administration requires provision of service to Alaska when technically
feasible.

A relaxation in the PFD limit in Section 5c of Annex 1 of Appendix
**S30**, as proposed below, would allow the use of 60 cm BSS receive
dishes in Alaska for BSS service from the 101W, 110W and 119W orbital
locations.

It is noted that a Joint Rapporteur Group between JWP 10/11S and WP 9D
has been established to evaluate the power flux density limits specified
in Section 5c and perhaps other terrestrial power flux density limits in
Annex 1 of Appendix **S30**.

**Proposal:**

**APPENDIX S30**

ANNEX 1

**\".....5.** **Limits to the change in the power flux-density to
protect the terrestrial services of administrations in Regions 1 and
3**[^6]**^6^**

*c)* in the frequency band 12.2-12.7 GHz for territories of
administrations in Region 1[^7]^7^, east of longitude 30° E:

-- ~~134~~ [121.8]{.underline} dB(W/m2/5 MHz) for
~~0~~[1.85]{.underline}°;

~~-- 134 4.6975 2 dB(W/m2/5 MHz) for 0° 0.8°;~~

-- 128.5 25 log dB(W/m2/5 MHz) for ~~0.8~~[1.85]{.underline}°;

**Reasons:** To allow the provision of BSS service to all of Alaska
using 60 cm receive dishes, from the U.S. BSS assignments at 101W, 110W
and 119W and from other Administration's orbital locations who plan to
provide BSS service to the United States.

\_\_\_\_\_\_

**VI. [Draft Proposals of IWG-7 (Informal Working Group on Fixed and
Fixed-Satellite Service 36-51 GHz Matters)]{.underline}**

A.  **Proposal 1** (WAC/088(24.06.99))

**United States of America**

\[DRAFT\] PROPOSALS FOR THE WORK OF THE CONFERENCE

**Proposals for Agenda Item 1.4**

## *to consider issues concerning allocations and regulatory aspects related to Resolutions 126 (WRC-97), 128 (WRC-97), 129 (WRC-97), 133 (WRC-97), 134 (WRC-97) and 726 (WRC-97)*

# 

# **Background**

*Requests ITU-R* 1 of Resolution **133 (WRC-97)** requested the ITU-R to
determine whether the power-flux density limits included in Article S21
of the Radio Regulations adequately protect terrestrial services from
FSS networks in the band 37.0-40.0 GHz. Resolution **129 (WRC-97)**
requested the ITU-R to undertake studies of appropriate criteria and
methodologies for sharing, including power flux-density limits, between
the fixed-satellite service and the other services with allocations in
the band 40.5-42.5 GHz.

The results of studies conducted in the ITU-R of known and proposed
non-GSO FSS systems, and of known and proposed P-P and P-MP FS systems,
indicate that maximum allowable values of power flux-density of
-120/-105 dB(W/m^2^-MHz) at the surface of the Earth would be adequate
to protect terrestrial services from non-GSO FSS networks in the
frequency band 37.5 - 40.5 GHz.

The results of studies conducted in the ITU-R of known and proposed
non-GSO FSS systems, and of known and proposed P-P and P-MP FS systems,
indicate that maximum allowable values of power flux-density of
‑115/‑105 dB(W/m^2^·MHz) at the surface of the Earth would be adequate
to protect terrestrial services from non-GSO FSS networks in the
frequency band 40.5 ‑ 42.5 GHz.

In both cases, the studies were deemed valid for non-GSO FSS systems
comprised of 99 or fewer satellites, and that independent verification
would have to be performed if these levels were to be applied to any
non-GSO FSS system with more than 99 satellites in its constellation.
The results of the studies are reflected in Draft New Recommendation
\[4-9S/AH1\], Maximum Allowable Values of Power Flux-Density at the
Surface of the Earth Produced by Non-Geostationary Satellites in the
Fixed-Satellite Service Operating in the 37.5-40.5 GHz and 40.5-42.5 GHz
Bands to Protect the Fixed Service.

The results of studies conducted in the ITU-R show that, for a range of
non-GSO and GSO fixed-satellite systems, and for a point-to-point and
point-to-multipoint fixed service system operating with elevation angles
that range from 0 - 40^0^, the pfd levels of ‑115/-105 dB(W/m^2^ per
MHz) are adequate to protect the fixed service in the band 37.5-42.5 GHz
from interference caused by GSO fixed-satellite service systems.

On the basis of these conclusions, the United States makes the following
proposals for modifications and additions to Table S21-4 of Article S21
are made, and to suppress Resolutions 133 and 129 (both WRC-97). The
United States bases its proposal to suppress Resolution 133 on the
completion of the power flux-density studies referenced in Resolves 1 of
that Resolution. To the extent that there may be aspects of studies that
encompass matters in Resolves 2 of Resolution 133 still ongoing in the
ITU-R, particularly on issues of coordination methodology, the United
States may make additional proposals (e.g., for a new WRC-2000
Resolution) to enable the completion of any such studies that have not
been successfully completed prior to WRC-2000.

# **PROPOSALS UNDER AGENDA ITEM 1.4 (Resolutions 133 and 129):**

**USA/A1.4/03 Modifications to Table S21-4**

**MOD**

+----+--------------+---------+-------+-----------+-------+----------+
| #  | # Fr         | #       | #     |           |       | # Ref    |
|    | equency band | Service | Limit |           |       | erence b |
|    |              |         |  in d |           |       | andwidth |
|    |              |         | B(W/m |           |       |          |
|    |              |         | ^2^)  |           |       | #        |
|    |              |         | for a |           |       |          |
|    |              |         | ngle  |           |       |          |
|    |              |         | of ar |           |       |          |
|    |              |         | rival |           |       |          |
|    |              |         |  () a |           |       |          |
|    |              |         | bove  |           |       |          |
|    |              |         | the h |           |       |          |
|    |              |         | orizo |           |       |          |
|    |              |         | ntal  |           |       |          |
|    |              |         | plane |           |       |          |
+----+--------------+---------+-------+-----------+-------+----------+
| #  |              |         | # 0°  | #         | #     |          |
|    |              |         |  - 5° |  5° - 25° |  25°  |          |
|    |              |         |       |           | - 90° |          |
+----+--------------+---------+-------+-----------+-------+----------+
| #  | # . . .      | #       | #     | #         | #     | #        |
+----+--------------+---------+-------+-----------+-------+----------+
| #  | # 3          | # F     | # -1  | # -115 +  | # -1  | # 1 MHz  |
|  * | 1.0-31.3 GHz | ixed-Sa | 15~~^ |  0.5 (-5) | 05~~^ |          |
| *M |              | tellite | 10^~~ |  ~~^10^~~ | 10^~~ |          |
| OD | 34.7-35.2    |         |       |           |       |          |
| ** | GHz          | **[(ge  |       |           |       |          |
|    |              | ostatio |       |           |       |          |
| #  | (S-E         | nary-sa |       |           |       |          |
|    | t            | tellite |       |           |       |          |
| #  | ransmissions | orbit)] |       |           |       |          |
|    | referred to  | {.under |       |           |       |          |
|    | in No.       | line}** |       |           |       |          |
|    | **S5.550**   |         |       |           |       |          |
|    | on the       | Mo      |       |           |       |          |
|    | territories  | bile-Sa |       |           |       |          |
|    | of countries | tellite |       |           |       |          |
|    | listed in    |         |       |           |       |          |
|    | No.          | Space   |       |           |       |          |
|    | **S5.549**)  | R       |       |           |       |          |
|    |              | esearch |       |           |       |          |
|    | 37.0-40.5    |         |       |           |       |          |
|    | GHz          |         |       |           |       |          |
+----+--------------+---------+-------+-----------+-------+----------+
|    | # [37        | # [     | # [-  | #         | # [-  | # [1     |
|    | .5-40.5 GHz] | Fixed-S | 120^1 |  [-120 +  | 105^1 | MHz]{.un |
|    | {.underline} | atellit | 0^]{. | 0.75 (-5) | 0^]{. | derline} |
|    |              | e]{.und | under |  ^10^]{.u | under |          |
|    |              | erline} | line} | nderline} | line} |          |
|    |              |         |       |           |       |          |
|    |              | **[     |       |           |       |          |
|    |              | (non-ge |       |           |       |          |
|    |              | ostatio |       |           |       |          |
|    |              | nary-sa |       |           |       |          |
|    |              | tellite |       |           |       |          |
|    |              | orbit)] |       |           |       |          |
|    |              | {.under |       |           |       |          |
|    |              | line}** |       |           |       |          |
+----+--------------+---------+-------+-----------+-------+----------+
|    | # [40        | # [     | # [-  | # [-115 + | # [-  | # [1     |
|    | .5-42.5 GHz] | Fixed-S | 115^1 |  0.5 (-5) | 105^1 | MHz]{.un |
|    | {.underline} | atellit | 0^]{. |  ^10^]{.u | 0^]{. | derline} |
|    |              | e]{.und | under | nderline} | under |          |
|    |              | erline} | line} |           | line} |          |
+----+--------------+---------+-------+-----------+-------+----------+

**MOD** 10 **S21.16.4** The values given in this table shall not apply
to emissions of space stations on non-geostationary satellites in
networks operating with 100 or more satellites.

**Reasons:** The PFD-review objectives of Resolutions **133 (WRC-97)**
and **129 (WRC-97)** have been met. The values stated above for
non-geostationary satellite orbit FSS systems in the bands 37.5-40.5 GHz
and 40.5-42.5 GHz respectively are included in a draft new
recommendation approved by the ITU-R. See Draft New Recommendation
\[4-9S/AH1\], Maximum Allowable Values of Power Flux-Density at the
Surface of the Earth Produced by Non-Geostationary Satellites in the
Fixed-Satellite Service Operating in the 37.5-40.5 GHz and 40.5-42.5 GHz
Bands to Protect the Fixed Service. In addition, studies have
demonstrated the suitability for application to geostationary
satellite-orbit FSS systems of the current pfd limits in the 37.5-40 GHz
band and the application of the same limits to the fixed-satellite
service in the 40.5-42.5 GHz band.

**USA/A1.4/04**

**SUP Resolution 133**

~~Resolution 133 (WRC-97)~~

~~Sharing Between the Fixed Service and Other Services in the Band 37-40
GHz~~

**Reasons:** Consequential

**USA/A1.4/05**

**SUP Resolution 129**

~~Resolution 129 (WRC-97)~~

~~Criteria and Methodologies for Sharing Between the Fixed-Satellite
Service and Other Services with Allocations in the Band 40.5-42.5 GHz~~

**Reasons:** Consequential

\_\_\_\_\_\_\_\_\_\_\_\_\_\_

**B. Proposal 2** (WAC/089(24.06.99))

United States of America

\[DRAFT\] PROPOSALS FOR THE WORK OF THE CONFERENCE

# **Proposals for Agenda Item 1.4**[^8]

## *to consider issues concerning allocations and regulatory aspects related to Resolutions 126 (WRC-97), 128 (WRC-97), 129 (WRC-97), 133 (WRC-97), 134 (WRC-97) and 726 (WRC-97)*

**Background Information: Resolution** **134 (WRC-97)** makes the date
of the provisional application of the allocation to the FSS in Regions 1
and 3 in the band 40.5-42.5 GHz 1 January 2001, and calls for review of
the allocation and provisional application date. On the basis of studies
conducted in the ITU-R, it is appropriate to advance the date of the
application of the FSS allocation in Regions 1 and 3 to 2 June 2000
(upon the conclusion of WRC-2000) [for the 40.5-41.5 GHz
band]{.underline}, and to extend ~~the~~ [this]{.underline} allocation
to all of Region 1 (thereby enabling the removal of RR **S5.551C,** RR
**S5.551D** and RR **S5.551E**, and the suppression of Resolution **134
(WRC-97)**). [Based on the ITU-R WP 4A contribution to the WRC-00 CPM
that protecting the Radio Astronomy Service to the levels specified in
existing ITU-R recommendations would mean a commercially impracticable
FSS service, it is also appropriate to delete the allocation to the FSS
worldwide in the 41.5-42.5 GHz band and suppress Resolution
128.]{.underline}

On the basis of these conclusions, the following proposals are made:

Article S5

GHz

40.5-41.5

+------------------------+------------------------+--------------------+
| Allocation to Services |                        |                    |
+------------------------+------------------------+--------------------+
| Region 1               | Region 2               | Region 3           |
+------------------------+------------------------+--------------------+
| 40.5-4                 | 40.5-4                 | 40.5-4[1]{         |
| [1]{.underline}~~2~~.5 | [1]{.underline}~~2~~.5 | .underline}~~2~~.5 |
|                        |                        |                    |
| FIXED                  | FIXED                  | FIXED              |
|                        |                        |                    |
| [FIXED-                | FIXED-SATELLITE        | FIXED-SATELLITE    |
| SATELLITE]{.underline} |                        |                    |
|                        | (space-to-Earth)       | (space-to-Earth)   |
| [(space-               |                        |                    |
| to-Earth)]{.underline} | ~~S5.551B~~            | ~~S5.551B~~        |
|                        | ~~S5.551E~~            | ~~S5.551E~~        |
| BROADCASTING           |                        |                    |
|                        | BROADCASTING           | BROADCASTING       |
| BROADCASTING-          |                        |                    |
|                        | BROADCASTING-          | BROADCASTING-      |
| SATELLITE              |                        |                    |
|                        | SATELLITE              | SATELLITE          |
| Mobile                 |                        |                    |
|                        | Mobile                 | Mobile             |
| ~~S5.551B~~            |                        |                    |
| ~~S5.551D~~            | S5.551C ~~S5.551F~~    | S5.551C            |
|                        |                        | ~~S5.551F~~        |
+------------------------+------------------------+--------------------+

**Reasons:** Studies in ITU-R confirm the feasibility of the
fixed-satellite service allocation in the bands ~~40.5-42.5~~ 40.5-41.5
GHz, and the need for harmonized global allocations. With the elevation
of the allocation to full primary status in all 3 regions, the footnote
allocation for countries in Region 1 can be removed. Those countries
that are listed or that have territories listed in RR **S5.551C** should
give consideration to whether the alternative allocation in certain
countries and territories in Regions 2 and 3 can be suppressed.
Acceleration of the effective date allows for removal of the reference
to Resolution **134 (WRC-97).** ~~In advancing this proposal, it must be
recognized that fixed-satellite service systems in the band 41.5-42.5
GHz may not be implemented until technical and operational measures have
been identified and agreed within ITU-R to protect the radio astronomy
service in the band 42.5-43.5 GHz from harmful interference.~~

Article S5

GHz

41.5-42.5

  ----------------------- ----------------------- -----------------------
  Allocation to Services                          

  Region 1                Region 2                Region 3
  ----------------------- ----------------------- -----------------------

+-----------------------+-----------------------+-----------------------+
| 4~~0~~[               | 4~~0~~[               | 4~~0~~[               |
| 1]{.underline}.5-42.5 | 1]{.underline}.5-42.5 | 1]{.underline}.5-42.5 |
|                       |                       |                       |
| FIXED                 | FIXED                 | FIXED                 |
|                       |                       |                       |
| BROADCASTING          | ~~FIXED-SATELLITE~~   | ~~FIXED-SATELLITE~~   |
|                       |                       |                       |
| BROADCASTING-         | ~~(space-to-Earth)~~  | ~~(space-to-Earth)~~  |
|                       |                       |                       |
| SATELLITE             | ~~S5.551B~~           | ~~S5.551B~~           |
|                       | ~~S5.551E~~           | ~~S5.551E~~           |
| Mobile                |                       |                       |
|                       | BROADCASTING          | BROADCASTING          |
| ~~S5.551B~~           |                       |                       |
| ~~S5.551D~~           | BROADCASTING-         | BROADCASTING-         |
|                       |                       |                       |
|                       | SATELLITE             | SATELLITE             |
|                       |                       |                       |
|                       | Mobile                | Mobile                |
|                       |                       |                       |
|                       | ~~S5.551C~~           | ~~S5.551C~~ S5.551F   |
|                       | ~~S5.551F~~           |                       |
+-----------------------+-----------------------+-----------------------+

**Reasons:** [At the recently completed meeting of ITU-R Working Party
4A, dealing with FSS matters, submitted text regarding Resolution 128
and protection of the Radio Astronomy Service. This text, for addition
to Section 6.1.3.2.3 of the CPM Report, stated that "If the
fixed-satellite service is constrained to the levels of attenuation
contained in Table 1, it is unlikely to be practicable for the FSS
allocation in the frequency band 41.5-42.5 GHz to be used for commercial
FSS applications". As support for this allocation by the US was, at
WRC-97, and is contingent on protecting the Radio Astronomy Service from
harmful interference, deletion of the allocation to the FSS in this band
segment is necessary.]{.underline}

**~~S5.551D~~**

**Reasons:** Consequential to USA/1.4/01.

**~~S5.551E~~**

**Reasons:** Consequential to USA/1.4/01.

~~Resolution 134 (WRC-97)~~

~~Use of the frequency band 40.5-42.5 GHz~~

~~by the fixed-satellite service~~

**Reasons:** Consequential to USA/1.4/01.

~~RESOLUTION 128 (WRC-97)~~

~~Allocation to the fixed-satellite service (space-to-Earth) in the
41.5-42.5 GHz band and protection of the radio astronomy service in the
42.5-43.5 GHz band~~

**Reason[: ]{.underline}**[Consequential to USA/1.4/02. Additionally, WP
4A has indicated protection of the Radio Astronomy Service to the levels
indicated in the WP 7D input to the CPM Report on Resolution 128, values
derived from existing ITU-R recommendations noted in the WP 7D output
report, would mean the FSS allocation in the 41.5-42.5 GHz band would be
unlikely to be practicable for use for commercial FSS
applications.]{.underline}

**C. Proposal 3** (WAC/105(24.06.99))

**United States of America**

\[DRAFT\] PROPOSALS FOR THE WORK OF THE CONFERENCE

**Proposals for Agenda Item 1.5**

to consider regulatory provisions and possible additional frequency
allocations for services using high altitude platform stations, taking
into account the results of ITU-R studies conducted in response to
Resolution **122 (WRC-97)**;

# **Background**

Resolution **122 (WRC-97),** "Use of the bands 47.2 -- 47.5 GHz and 47.9
-- 48.2 GHz by high altitude platform stations in the fixed service and
by other services", instructs the Director of the Radiocommunication
Bureau, that from 22 November 1997, to accept notices in the 47.2 --
47.5 and 49.2 -- 48.2 GHz only for high altitude platform stations in
the fixed service and for feeder links for the broadcasting-satellite
services pending review of sharing studies between co-primary services
in the band. On the basis of studies conducted in the ITU-R, it is
appropriate to modify Resolution 122 (WRC-97). A draft new
Recommendation \[4-9S/AAX\] has been developed that establishes the
performance parameters for FSS antennas that can share with the HAPS
system.

On the basis of these conclusions, the following proposal is made:

**USA/1.5/XX**

**MOD Resolution 122 (WRC-97)**

RESOLUTION 122 (WRC-97)

Use of the bands 47.2-47.5 GHz and 47.9-48.2 GHz by high altitude
platform stations in the fixed service and by other services

The World Radiocommunication Conference (~~Geneva, 1997~~[Istanbul,
2000]{.underline}),

considering

a)  that the band 47.2-50.2 GHz is allocated to the fixed, mobile and
    fixed-satellite services on a co-primary basis;

*b)* that ~~this conference has~~[WRC-97]{.underline} made provision for
operation of high altitude platform stations, also known as
stratospheric repeaters, within the fixed service in the bands
47.2-47.5 GHz and 47.9-48.2 GHz;

*c)* that ITU has among its purposes "to promote the extension of the
benefit of the new telecommunication technologies to all the world's
inhabitants" (No. 6 of the Constitution of the ITU (Geneva, 1992));

*d)* that systems based on new technologies using high altitude
platforms [in the bands 47.2-47.5 and 47.9-48.2 GHz]{.underline} will be
able to provide high-capacity, competitive services to urban and rural
areas;

*e)* that high altitude platform systems are in an advanced stage of
development and some countries have notified such systems to ITU;

*f)* that [WRC-97 adopted a new definition of high altitude platform
stations in Article **S1**, modified No. **S11.24** and added No.
**S11.26** in]{.underline} the Radio Regulations [providing for notices
relating to assignments for high altitude platform stations in the bands
47.2-47.5 GHz and 47.9-48.2 GHz]{.underline}~~Board issued a provisional
rule of procedure concerning notification periods in No. **S11.24/1228**
in February 1997~~;

g)  that ~~in spite of the urgency attached to the development of such
    systems, sharing and regulatory issues should be studied in order to
    achieve the most efficient use of the spectrum available for these
    systems~~ [the ITU-R has confirmed that sharing is feasible between
    high altitude platform stations and the FSS]{.underline};

h)  that technical studies are [still]{.underline} required in order to
    ascertain the extent to which sharing of the bands 47.2-47.5 GHz and
    47.9-48.2 GHz is feasible between systems using high altitude
    platforms in the fixed service and systems in the fixed~~,
    fixed-satellite~~ and mobile services, and to ascertain the
    requirements to protect radio astronomy services in adjacent bands
    from spurious emissions;

i)  that the radio astronomy service has primary allocations in the
    bands 42.5-43.5 GHz and 48.94-49.04 GHz

j)  ~~that ITU studies are already under way on the preferred
    characteristics of systems using high altitude platforms and the
    feasibility of sharing between these systems and systems of other
    services and between these systems and other systems in the fixed
    service (Questions ITU-R 212/9, ITU-R 218/9 and ITU-R 251/4;~~

k)  ~~that No. **S5.552** urges administrations to reserve
    fixed-satellite service use of the band 47.2-49.2 GHz for feeder
    linkds for the broadcasting-satellite service, and that preliminary
    ITU-R studies indicate that high altitude platform stations in the
    fixed service may share with broadcasting-satellite feeder links;~~

l)  ~~that the development of services using high altitude platform
    stations in these bands requires major investment and that
    manufacturers and operators should be given the confidence to make
    the necessary investment in these applications,~~

resolves

1 to urge administrations to facilitate coordination between high
altitude platform stations in the fixed service operating in the bands
47.2-47.5 GHz and 47.9-48.2 GHz and other co-primary services in their
territory and adjacent territories;

2.  that, on a provisional basis, the procedures of Article **S9** shall
    be used for coordination between satellite systems and high altitude
    platform systems;

3 to request ITU-R to carry out urgently studies on the appropriate
technical sharing criteria for the situations referred to in
*considering* *h)*, with priority given to the sharing with other
systems in the fixed ~~and fixed-satellite~~ service~~s, in particular
the determination of the appropriate geographical separation from feeder
links in the broadcasting-satellite service;~~

4 that WRC-~~99~~[03]{.underline} should review the results of these
studies and consider refinement of the regulatory provisions
[for]{.underline} ~~that might facilitate a broader application~~ of
~~these high~~ altitude platform technologies,

instructs the Director of the Radiocommunication Bureau

1 that notices concerning high altitude platform stations that were
received by the Bureau prior to 22 November 1997, and provisionally
recorded in the Master International Frequency Register in accordance
with the provisional rule of procedure issued by the Board, shall be
maintained;

2 that ~~from 22 November 1997, and~~ pending review of the sharing
studies in *considering* *h)* ~~and review of the notification process
by WRC-99~~, the Bureau shall accept notices in the bands 47.2-47.5 GHz
and 47.9-48.2 GHz only for high altitude platform stations in the fixed
service[.]{.underline} and [for the fixed-satellite service,
including]{.underline} feeder links for the broadcasting-satellite
service[.]{.underline}~~, shall continue to process notices for
fixed-satellite service networks (except for feeder links for the
broadcasting-satellite service) for which complete information for
advance publication has been received prior to 27 October 1997, and
shall inform the notifiying administrations accordingly.~~

## 

## 

## *EDITORIAL NOTE: A majority of the participants in IWG-7 concur in this document. However, one member, representing Sky Station International, has expressed a preference (1) to maintain and expand considering (j); (2) that the only modification to the resolves should be to postpone the reviewing conference from WRC-2000 to WRC-2003; and (3) to extend for a minimum of three more years (i.e., until the next conference) the freeze on FSS notices that is contained in "instructs the Director of the Radiocommunication Bureau" No. 2. The proposed expanded considering (j) would read as follows*:

## 

## j) that ITU-R studies are already under way on the preferred characteristics of systems using high altitude platforms and the feasibility of sharing between these systems and systems of other services and between these systems and other systems in the fixed service (Questions ITU-R 212/9, ITU-R 218/9 and ITU-R 251/4) [and that although Draft New Recommendations \[4-9S/AAX\] and \[9B/HAPS1\] and \[9B/HAPS2\] have been developed, further studies are required to fully assess the implications of these scenarios and to consider the effect of mitigation techniques on increasing shared use of these bands by HAPS and other systems;]{.underline}

VII. **[Draft Proposals of IWG-9 (Informal Working Group on Other
     Matters; Including Regulatory and Procedural
     Matters)]{.underline}** (WAC/091(24.06.99))

**United States of America**

**PROPOSAL FOR THE WORK OF THE CONFERENCE**

# **Proposal for Agenda Item 1.8**

(to consider regulatory and technical provisions to enable earth
stations located on board vessels to operate in the fixed-satellite
service (FSS) networks in the bands 3 700 - 4 200 MHz and 5 925 -
6 425 MHz, including their coordination with other services allocated in
these bands)

**Background Information:** This item concerns provision of
communications by earth stations on board vessels using frequencies
allocated to the fixed-satellite service and used by existing space
segment in the fixed-satellite service. These stations operate in three
distinct modes: at sea; while stationary in or near port; and in motion
approaching or departing from port.

Operations at sea (beyond a certain distance for near-shore
coordination) by earth stations on board vessels in the fixed-satellite
service do not present a potential for interference to stations in the
fixed service operating in accordance with the 6 GHz FS allocation, and
therefore need not be coordinated. Operations while these earth stations
are stationary at pre-determined points can be coordinated bilaterally
with fixed service systems. Technical and regulatory issues concern the
potential for interference between in-motion operations by these ESV
earth stations operating close to shore and stations in the fixed
service both on and offshore.

Attached is regulatory text that provides the framework for the
authorization of earth stations on board vessels in the three different
situations of operation; and through the application of constraints
provides for the continued growth of terrestrial fixed services
operating in accordance with the Radio Regulations.

There are a number of references to the distance \[XXX\] in the
following proposal for Agenda Item 1.8. Determination of the \[XXX\]
value or values must be accomplished before any regulatory/procedural
proposals could be implemented.

**Proposal:**

3 700 - 4 200 MHz

+--------------+-------------------+-----------------+----------------+
|              | ### **Allocat     |                 |                |
|              | ion to services** |                 |                |
+--------------+-------------------+-----------------+----------------+
|              | Region 1          | Region 2        | Region 3       |
+--------------+-------------------+-----------------+----------------+
| **           | 3700-4200         | 3700-4200       |                |
| USA/1.8/01** |                   |                 |                |
|              | FIXED             | FIXED           |                |
| **MOD**      |                   |                 |                |
|              | FIXED-SATELLITE   | FIXED-SATELLITE |                |
|              |                   | (               |                |
|              | ###               | space-to-Earth) |                |
|              | #  ADD USA/1.8/03 |                 |                |
|              |                   | ADD USA/1.8/03  |                |
|              | Mobile            |                 |                |
|              |                   | MOBILE except   |                |
|              |                   | aeronautical    |                |
|              |                   | mobile          |                |
+--------------+-------------------+-----------------+----------------+

> **Reasons:** To establish regulatory and technical provisions for
> operations of ESV earth stations on board vessels in the
> fixed-satellite service.

5 925 - 6 425 MHz

+-----------------+-----------------+-----------------+-----------------+
|                 | ### **Allocatio |                 |                 |
|                 | n to services** |                 |                 |
+-----------------+-----------------+-----------------+-----------------+
|                 | Region 1        | Region 2        | Region 3        |
+-----------------+-----------------+-----------------+-----------------+
| **USA/1.8/02**  | 5925-6425 FIXED |                 |                 |
|                 |                 |                 |                 |
| **MOD**         | >               |                 |                 |
|                 | FIXED-SATELLITE |                 |                 |
|                 | > (             |                 |                 |
|                 | Earth-to-space) |                 |                 |
|                 | >               |                 |                 |
|                 | > ADD           |                 |                 |
|                 | > USA/1.8/03    |                 |                 |
|                 | >               |                 |                 |
|                 | > S5.149 S5.440 |                 |                 |
|                 | > S5.458        |                 |                 |
+-----------------+-----------------+-----------------+-----------------+

> **Reasons:** To establish regulatory and technical provisions for
> operations of earth stations on board vessels in the fixed-satellite
> service

### **USA/1.8/03**

**ADD** S5.ESV Earth stations located on board vessels may use
frequencies in this band and shall operate in the fixed-satellite
service in accordance with Resolution **ZZZ (WRC-2000).**

> **Reasons:** To establish regulatory and technical provisions for
> operations of earth stations on board vessels in the fixed-satellite
> service.

**USA/1.8/04**

##### ADD

Resolution ZZZ (WRC-2000)

Provisions to Enable Earth Stations Located on board Vessels to Operate
in Fixed-Satellite Service Networks in the Bands 3 700-4 200 MHz and
5 925-6 425 MHz

The World Radiocommunication Conference (Istanbul, 2000),

considering

a)  that the technology exists that would permit the use of FSS networks
    by earth stations on board vessels (ESV) in the bands 3 700-4
    200 MHz (space-to-Earth) and 5925-6425 MHz (Earth-to-space);

b)  that ESVs have the potential to cause unacceptable interference to
    fixed service systems in the band 5 925-6 425 MHz;

c)  that some administrations have been operating ESVs for several years
    under Radio Regulation S4.4;

d)  that ESV operations require considerably less than the full
    bandwidth in this FSS allocation and only a portion of the visible
    geostationary arc;

e)  that in order to ensure the protection and future growth of the FS,
    the ESV must operate with certain operational constraints;

f)  that the territory of an administration includes any off-shore
    structures or platforms with stations authorized by that
    administration;

g)  that a minimum distance from the territory of an administration can
    be calculated beyond which the ESV will not cause unacceptable
    interference to the fixed service in this band.

resolves

1.  that an earth station on board a vessel (ESV) may be considered a
    station in the fixed-satellite service while receiving in the 3
    700 - 4 200 MHz band and transmitting in the 5 925 - 6 425 MHz band;

2.  that operation of ESVs that are at least \[XXX\] km from the
    territory of an administration in which stations in the fixed
    service operating in accordance with the Radio Regulations require
    no coordination or agreement;

3.  that an ESV may be operated, either at a stationary position or
    while in motion, within \[XXX\] km from the territory of an
    administration with any fixed service station operating in
    accordance with the Radio Regulations using the bands
    3 700 - 4 200 MHz (space-to-Earth) and 5 925 - 6 425
    (Earth-to-space) of the fixed-satellite service, subject to the
    following:

```{=html}
<!-- -->
```
(a) the authority for operating on radio frequencies within \[XXX\] km
    of territory on which such stations in the fixed service are
    operating belongs with the Administration responsible for that
    territory; however, the responsibility for the ESV lies with the
    Administration that authorized the use of the ESV,

(b) The administration that authorizes the use of the ESV in these bands
    shall ensure that such stations do not cause unacceptable
    interference to stations in the fixed service which themselves are
    established and operated in accordance with the Radio Regulations;

(c) Before ESVs operate in the fixed-satellite service in these bands:

```{=html}
<!-- -->
```
(i) a set of frequencies will be established in each area of intended
    operation for such use that have been coordinated with all other
    potentially affected users;

(ii) this set of frequencies will include only the necessary spectrum
     per vessel in these bands (maximum necessary bandwidth per ESV is
     2.346 MHz);

(iii) coordination will be accomplished between the Administration(s)
      with authority over the potentially affected fixed service
      stations operating in these bands and the Administration that
      authorizes the ESV to operate while stationary in these bands; in
      accordance with the S9.17 provisions of the Radio Regulations;

(iv) upon completion of such coordination, the ESV will be authorized to
     operate in the fixed-satellite service subject to appropriate
     operational constraints in these bands;

```{=html}
<!-- -->
```
(d) a list of the ESVs authorized to operate within \[XXX\] km of
    territory on which stations in the fixed service are operating in
    accordance with the Radio Regulations, the frequencies used and
    associated operational conditions that have been coordinated shall
    be established and maintained by the Administration responsible for
    the territory in which the fixed service stations are located; such
    list shall include a point of contact for obtaining this
    information;

(e) ESV operators must comply with the conditions established by the
    authorizing Administration(s); ESV use will be limited to the areas
    specified in the authorization with all of the constraints including
    minimum speeds.

```{=html}
<!-- -->
```
4.  that coordination of in-motion ESVs within \[XXX\] km of all
    stations in the fixed service operating in accordance with the Radio
    Regulations shall be accomplished using the provisions of the Annex
    to this Resolution.

5.  that every ESV operating under this provision shall be equipped with
    an automatic mechanism for continuously determining the location of
    the vessel and disabling operations in the event the vessel is
    within \[XXX\] km of the territory of an administration with
    stations in the fixed service operating in accordance with the Radio
    Regulations or that the ESV is outside any geographic area where its
    operation has been coordinated. The ESV shall also incorporate an
    automatic mechanism to terminate transmissions (a) when the antenna
    subsystem loses lock on the satellite and/or the ability to maintain
    tracking accuracy; or (b) when the antenna elevation drops below the
    ten degree required minimum elevation angle or (c) or when any
    operating parameter fails to meet the constraints established in the
    terms of the coordination agreement.

6.  that Administrations that authorize the use of the ESV shall ensure
    that personnel of vessels with ESVs are adequately qualified and
    certificated in accordance with the requirements of those
    Administrations to ensure the proper operation of the ESVs in
    accordance with the provisions of this Resolution.

7.  that the operator of the ESV shall, as appropriate, provide evidence
    of the basis for the authority under which the station is operating
    (e.g. license or certification). When such authority cannot be
    produced or when manifest irregularities are observed,
    Administrations in whose territory vessels equipped with ESVs are
    visiting may inspect the ESV installations in order to satisfy
    themselves that the ESVs conform to the conditions imposed by this
    resolution, including the capability indicated in section 5.

8.  that Administrations which authorize the use of the ESV shall ensure
    that the ESV shall be capable of operating in compliance with the
    requirements of this Resolution.

Annex

**USE OF ESVS WHILE IN MOTION WITHIN THE**

DISTANCE \[XXX\] km IN THE BANDS 3700-4200 MHz AND

**5925-6425 MHz**

1.  Unless otherwise provided in a bilateral coordination agreement, the
    minimum constraints on ESVs shall include:

```{=html}
<!-- -->
```
a.  minimum diameter of the ESV antenna must be at least 2.4 m;

b.  minimum antenna elevation angle must be at least 10 degrees;

c.  maximum necessary bandwidth/vessel: 2.346 MHz;

d.  maximum necessary bandwidth in a single operating area: 36 MHz;

e.  maximum ESV transmitter power spectral density 17 dB(W/MHz) (at
    input to the antenna);

f.  minimum satellite tracking accuracy of 0.2 degrees;

g.  maximum half-power antenna beamwidth of 1.5 degrees

```{=html}
<!-- -->
```
2.  The ESV transmissions from vessels within \[XXX\] km of stations in
    the fixed service operating in accordance with the Radio Regulations
    shall be based on agreements between the administrations concerned.

3.  In order not to inhibit the growth of the fixed service,
    authorizations and agreements for the use of these frequencies by
    ESVs in accordance with the conditions of the coordinations shall
    extend for a fixed period of time (e.g. 1-3 years), but may be
    renewed;

4.  ESVs will not claim protection while in motion from fixed service
    station transmissions.

5.  Methods for establishing the basis for ESV use of frequencies in
    this band should be based on the most recent Recommendations of the
    ITU-R applicable to sharing between the fixed service and ESV use of
    the band.

> **Reasons:** To establish regulatory and technical provisions for
> operations of earth stations on board vessels in the fixed-satellite
> service.

**VIII. [Draft Proposals of IWG-10 (Informal Working Group on WRC-2001
Matters)]{.underline}**

**Proposals for WRC-2000 Agenda Item 7.2**

**A. Proposal 1** (WAC/092(24.06.99))

# 

# **United States of America**

## **Proposal for the Work of the Conference**

**Proposal to amend Resolution 722, Agenda Item 2.4**

**[BACKGROUND]{.underline}**: The availability of modern technology
makes possible substantial improvements in HF maritime communications.
Agenda Item 2.4 stems from extensive discussions of maritime
telecommunications at WRC-97. Resolution 347 notes the use of HF A1A
Morse radiotelegraphy is steadily diminishing and that Administrations
are converting to digital telecommunications on a non-interference basis
and recommends that WRC-2000 make changes to Appendices S17 and Article
S52 as needed.

**WRC-2003 Preliminary Agenda Item** **2.4** - review of the frequency
and channel arrangements in the MF and HF bands allocated on a primary
basis to the maritime - mobile service, taking into account the use of
new digital technology, in accordance with Resolution 347 (WRC-97). The
text of this Agenda Item is contained in Resolution 722 (WRC-97).

**[ISSUE]{.underline}**: Broadening the scope of Agenda Item 2.4 to
permit consideration of other HF maritime matters.

Resolution 347 was addressed to WRC-1999 (now WRC-2000). With modern
technology readily available, the world's shipping interests should be
permitted to upgrade their telecommunications. As worded, WRC-2003 is
required to review channel arrangements in accordance with a Resolution
adopted by WRC-97 and addressed to WRC-99 (now 2000).

**[PROPOSAL]{.underline}**: The U.S. proposes that WRC-2000 amend Agenda
Item 2.4 of Resolution 722 to read as follows:

"review of frequency and channel arrangements in the MF and HF band
allocated on a primary basis to the maritime mobile service, taking into
account the use of new digital technology, ~~in accordance with~~
**noting** Resolution 347 (WRC-97)."

**[FOREIGN VIEWS]{.underline}**: No opposition to the proposed change is
anticipated.

**B. Proposal 2** (WAC/093(24.06.99))

> **United States of America**
>
> **Proposal for the Work of the Conference**

Proposal to amend Res. 722, Agenda Item 2.6

> **[Background]{.underline}:** The United States Government has an
> established need for additional primary radiolocation allocations in
> the bands near 3 MHz and 5 MHz in support of ongoing and new radar
> operations whose stations are/will be deployed on a worldwide basis.
> Consequently, the U.S. requested an agenda item for additional
> allocations at WRC-97 resulting in agenda item 2.6 for WRC-2001 as
> contained in Resolution 722 (WRC-97). Technical study is underway
> within ITU-R WP-8B and is expected to be complete by the time of
> WRC-2002/3. These studies are expected to show that current secondary
> radiolocation allocations can be upgraded to the primary category and
> share with the existing primary allocations.
>
> **[Proposal:]{.underline}** The proposal herein amends agenda item 2.6
> of Resolution 722:
>
> RESOLUTION 722 (WRC-97)
>
> Preliminary Agenda for the 2001 World\
> Radiocommunication Conference
>
> 2
>
> The World Radiocommunication Conference (Geneva, 1997),
>
> resolves to give the view
>
> that the following items should be included in the preliminary agenda
> of WRC‑01, to be held in late 2001:
>
> 2.6 to consider the status of allocations to the radiolocation service
> in the bands around 3.0 GHz and around 5.5 GHz~~, the date of a
> conference is under discussion~~;
>
> **[Reason:]{.underline}** To ensure this agenda item is retained for
> WRC-2002/3

**C. Proposal 3** (WAC/099(24.06.99))

**Modification to Resolution 72**2

> Preliminary Agenda for the 2001[^9] World Radiocommunication
> Conference

[Add]{.underline} Section 2.13 bis allocations on a worldwide basis for
feeder links for mobile

> satellite systems operating service links in the 1-3 GHz range

Reason: WRC-95 addressed the spectrum needs for feeder links for
non-geostationary mobile satellite services, and made limited
allocations in the 4-30 GHz range. Both geostationary (GSO) and
non-geostationary (NGSO) mobile satellite systems are now being
implemented in the 1-3 GHz range. Further proposals have been made to
implement additional GSO and NGSO systems in the 2 GHz and 2.5 GHz
bands. The WRC-00 conference will be considering service link spectrum
allocations to both the terrestrial and satellite component of IMT-2000.
These events make it necessary to consider additional spectrum
allocations for MSS feeder links. The proposal would place the item on
the agenda for WRC-2002/3 so that appropriate studies could be completed
prior to the conference by the ITU-R as a part of the conference
preparatory process.

**D. Proposal 4** (WAC/100 (24.06.99))

**Modification to Resolution 722**

Preliminary Agenda for the 2002/3 World Radiocommunication Conference

> **Add a new Section (2.xx) or (3.xx)**
>
> **Additional allocations on a worldwide basis for service links of**
>
> **non-geostationary mobile satellite systems**
>
> **(NGSO/MSS) in the 1-3 GHz range**
>
> **Reason:** WRC-92 allocated spectrum for the service links of
> non-geostationary mobile satellite systems in the 1610-1626.5 MHz and
> 2483.5-2500 MHz frequency bands. WRC-95 and WRC-97 Conferences took
> decisions regarding the use of the 2 GHz band by the service links of
> NGSO/MSS systems. WRC-00 is expected to consider spectrum allocation
> for IMT-2000 systems. The IMT-2000 systems include both the
> terrestrial and satellite components. The satellite component of
> IMT-2000 is considered to be part of the serices offered by GSO and
> NGSO MSS systems. Both geostationary and non-geostationary mobile
> satellite systems are either in operation or are being implemented.
> Further, many new systems have been proposed for implementation in the
> 1-3 GHz band. It is therefore necessary that the spectrum requirements
> for the service links of
>
> NGSO/MSS systems will need to be further examined at the WRC-2002/3
> Conference, with the objective of making additional allocations, if
> required. The ITU-R will have an opportunity to complete the needed
> sharing and performance studies as part of the Conference Preparatory
> Process.

**E. Proposal 5** (WAC/101(24.06.99)) -- [Note:]{.underline} The
following proposal does not include some items that IWG-5 recommended,
but IWG-10 was not able to consider. We invite comments on whether any
of the other items that were removed from the WRC-2000 agenda by the
1998 ITU Council should also be added to the agenda of WRC-02/03.

**United States Of America**

Proposal for the Work of the Conference

**Proposal to Amend Resolution No. 722**

> **To Add Selected Items From Resolution No. 721 That Were Not**

**Included on the WRC-2000 agenda**

[Background]{.underline}: In Resolution No. 721, the WRC-1997 included
several agenda items for possible inclusion on the WRC-2000 agenda. It
left that decision to the ITU Council. These items, numbered 8.1 through
8.8, were not included in the agenda for this conference by Council in
its Resolution 1130. Therefore, it seems appropriate that the 2000 WRC
review these items again to see if they are still appropriate for
consideration by a future WRC.

[Proposal]{.underline}: The United States has reviewed agenda items 8.1
through 8.8 from Resolution No. 721. We propose that items 8.1, 8.2,
8.3, and 8.4 be included in the agenda for WRC-2002/3.

Resolution No. 722

> Preliminary Agenda For The

2001 (2002/3) World Radiocommunication Conference

Add 2. bis to consider the regulatory and technical provisions for the
quasi-

> geostationary satellite networks;

to examine the spectrum requirements for telemetry, tracking and

> telecommand of fixed satellite service networks operating with service
>
> links in the frequency bands above 17 GHz;

to review the use of the frequency band 415-526.5 kHz by the

> aeronautical radionavigation and maritime mobile services;

to review the use of the HF bands by the aeronautical mobile (R) and

> maritime mobile services with a view to meeting the changing needs of
>
> these services.

[Reason]{.underline}: The United States proposes that these items be
treated by the WRC-2002/3, in view of the ongoing studies in the ITU-R,
and in view of the changing needs of the services indicated.

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

**F. Other proposals approved by IWG-10** (WAC/094(24.06.99),
WAC/095(24.06.99), WAC/096(24.06.99), WAC/097(24.06.99) and
WAC/098(24.06.99)

These documents originated in Informal Working Group 2 (IWG-2) and were
edited and approved by IWG-10. The resulting proposals are shown under
IWG-2.

VIII. **[Draft Proposals of NTIA\'s Radio Conference
      Subcommittee]{.underline}**

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A.  **Proposal Set 1 - WRC-2000 Agenda Items 1.3, 1.4 (Resolutions 126
    (WRC-97) and 726 (WRC-97)), 1.6.2, 1.7 (aeronautical) and 1.18
    (simplex use of duplex channels)** (WAC/102(03.06.99))

B.  **Proposal Set 2 - WRC-2000 Agenda Items 1.4 (Resolution 134
    (WRC-97)), 1.4 (Resolution 726 (WRC-97)), 1.7 (maritime), 1.15.1 and
    1.18 (interoperable technologies)** (WAC/103(10.06.99))

C.  **Proposal Set 3 - WRC-2000 Agenda Items 1.6.1 and 1.16**
    (WAC/104(15.06.99))

These sets of proposals are not reproduced here but are available on the
FCC's WRC-2000 web site.

For additional information, please contact Damon C. Ladson or John
Giusti at 418-1407.

[^1]:     ^?^Previous preliminary views and/or draft proposals appeared
    in FCC Public Notices

    Nos. DA 98-842, released May 4, 1998, DA 98-1044, released June 3,
    1998, DA 98-1125, released June 15, 1998, DA 98-1560, released
    August 5, 1998, DA 99-398, released February 26, 1999, and DA
    99-595, released March 29, 1999.

[^2]: This is the spectrum requirement for the satellite component over
    and above what has been identified in Res. 212(Rev. WRC-97.

[^3]: ^1^

[^4]: ^1^

[^5]: ^1^

[^6]: ^16^ See § 3.18 of Annex 5.

[^7]: ^17^ In the band 12.5-12.7 GHz in Region 1, these limits are
    applicable only to the territory of administrations mentioned in
    Nos. **S5.494** and **S5.496**.

[^8]: ^\*^ The proposals advanced in this paper do not represent the
    full extent of U.S. proposals to WRC-2000 on Agenda Item 1.4.

[^9]: PP-98 refers to this WRC as WRC-2002/3.