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  ---------------------------------------------- ------------------------
                                                 **PLENARY MEETING**

  United States of America                       

  proposals for the work of the conference       

  agenda item 1.32                               
  ---------------------------------------------- ------------------------

1.32 to consider technical and regulatory provisions concerning the band
37.5-43.5 GHz, in accordance with Resolutions **128 (Rev.WRC-2000)** and
**84 (WRC-2000)**

a -- resolution 128

Background information

The band 42.5-43.5 GHz is allocated to the radio astronomy (RA), fixed
and mobile services on a co‑primary basis, while the frequency bands
immediately below 42.5 GHz are allocated to the FSS (space-to-Earth) and
BSS on a co-primary basis with each other and with the terrestrial
services. To protect the RA service in the adjacent band, WRC-2000
established a new footnote 5.551G, which contains a provisional pfd
limit -- not to exceed --167 dB(W/m^2^) in any 1 MHz band at the site of
a RA station for more than 2% of the time -- on emissions produced into
the band 42.5-43.5 GHz by non‑GSO FSS or BSS systems operating in the
band 41.5-42.5 GHz. A similar limit was imposed on emissions that GSO
FSS or BSS satellites operating in the band 42.0-42.5 GHz may produce at
the sites of RA stations operating in the band 42.5-43.5 GHz.

ITU-R has conducted studies to review these provisional pfd limits; to
identify technical and operational measures in the band 41.5-42.5 GHz,
including possible mitigation techniques to protect RA operations; and
to propose measures that may be implemented to reduce the susceptibility
of stations in the RA service to harmful interference.

ITU-R has determined that the interference criteria to stations in the
radio astronomy service (RAS) operating in the band 42.5-43.5 GHz are:

-- Single dish telescopes: 153 dB(W/(m^2^ · 500 kHz)); also, the
interference threshold of RAS continuum observations is 137 dB(W/(m^2^ ·
GHz)).

-- Very Long Baseline Interferometry (VLBI): 116 dB(W/(m^2^ · 500 kHz)).

It is noted that the protection criteria given in No. 5.551G do not take
into account the RAS reference bandwidth and the type of observations
being conducted at the radio astronomy station. The revised criteria
above would therefore improve on the provisions of No. 5.551G.

1\) *For VLBI stations*

-- Results of ITU-R studies indicated that the VLBI interference
threshold was met by both GSO FSS and BSS systems that intend to operate
in the band 42-42.5 GHz and by both non‑GSO FSS and BSS systems that
intend to operate in the band 41.5-42.5 GHz.

2\) *For Single Dish Telescope (SDT)*

-- The SDT interference thresholds for continuum and spectral line
observations may not be met by unwanted emissions from GSO FSS or BSS
satellites in the band 42.0‑42.5 GHz or by unwanted emissions from
non-GSO FSS or BSS systems in the band 41.5‑42.5 GHz. However, because
there are relatively few RAS sites operating with single dish telescopes
in the band 42.5‑43.5 GHz, it may be feasible to employ interference
mitigation techniques such as geographical and frequency isolation by
the FSS and BSS, and better antenna side lobe roll-off by the RAS in
order to reduce the interference potential to the RAS receiver sites.

Description of proposals

In consideration of the practical interference mitigation techniques
available to the FSS, BSS and RAS, it is proposed that Method C in the
CPM Report to WRC-03 be adopted, with one modification pertaining to the
consideration of spectral line observations in the sub-band
42.5‑42.77 GHz. The elements of this method are:

1\) place unwanted emissions limits only for GSO and non-GSO networks
and systems operating in the band 42-42.5 GHz. The single dish pfd limit
of --137 dB(W/m^2^) in 1 GHz would apply at 42.5-43.5 GHz and --153
dB(W/m^2^) in 500 kHz would apply in the band 42.77-43.5 GHz at radio
telescopes notified prior to the submission of advance publication
information by the subject satellite network or system;

2\) for spectral line observations in the band 42.5-42.77 GHz, a new
Resolution would specify that:

-- an FSS/BSS system/network shall take all practicable steps to design
a system that complies with the --153 dB(W/(m^2^ · 500 kHz)) spectral
line detrimental interference threshold (for all but 2% of the time);

-- to the extent that the --153 dB(W/(m^2^ · 500 kHz)) spectral line
detrimental interference threshold would be exceeded at an RAS site in
42.5-42.77 GHz more than 2% of time, despite the taking of all
reasonably practicable steps, the administration planning the FSS or BSS
system or network would coordinate with the administration operating the
affected RAS station to limit or mitigate the impact of the excess
unwanted emissions;

3\) modify No. 5.551G and the Table of Frequency Allocations to have the
footnote applied only to the 42-42.5 GHz band;

4\) include an element in Appendix 4, Annex 2A, C, to characterize a
radio astronomy station as performing single dish (S) or VLBI (V)
observations; and

5\) suppress Resolution 128.

Proposals

ARTICLE 5

**MOD** USA/12/242

**5.551G** In order to protect the radio astronomy service in the band
42.5-43.5 GHz, the aggregate power flux-density in the 42.5-43.5 GHz
band produced by all the space stations in any
non-geostationary-satellite system, or by any geostationary-satellite
station, in the fixed-satellite service (space-to-Earth) or in the
broadcasting-satellite service operating in the 42-42.5 GHz band shall
not exceed the following values for more than 2% of the time:

-- --137 dB(W/m^2^) in the 42.5-43.5 GHz band and --153 dB(W/m^2^) in
any 500 kHz in the 42.77-43.5 GHz band, at the site of a radio astronomy
station registered as a single dish telescope, and

-- --116 dB(W/m^2^) in any 500 kHz at the site of a radio astronomy
station registered as a VLBI station in the 42.5-43.5 GHz band.

These values shall apply at any radio astronomy station that either:

-- was in operation prior to the end of WRC-03 and has been notified to
the ITU before 4 January 2004; or

-- was notified before the date of receipt of the advance publication
information (API) of the space station to which the limits are to apply.

Other radio astronomy stations, notified after these dates, may seek an
agreement with administrations authorizing the space stations.
Resolution **\[NSL\] (WRC-03)** shall apply to the protection of
spectral line observations in the band 42.5-42.77 GHz at the site of a
radio astronomy station registered as a single dish telescope. The
limits in this footnote may be exceeded on the territory of any country
whose administration has so agreed.     (WRC‑03)

**Reasons:** Consequential from the ITU-R studies to protect the radio
astronomy service in the band 42.5-43.5 GHz without placing undue
constraints on the FSS and BSS in bands below 42 GHz.

**MOD** USA/12/243

40.5-51.4 GHz

+-----------------------+-----------------------+----------------------+
| Allocation to         |                       |                      |
| services              |                       |                      |
+-----------------------+-----------------------+----------------------+
| Region 1              | Region 2              | Region 3             |
+-----------------------+-----------------------+----------------------+
| **41-42** FIXED       |                       |                      |
|                       |                       |                      |
| FIXED-SATELLITE       |                       |                      |
| (space-to-Earth)      |                       |                      |
| 5.551AA               |                       |                      |
|                       |                       |                      |
| BROADCASTING          |                       |                      |
|                       |                       |                      |
| B                     |                       |                      |
| ROADCASTING-SATELLITE |                       |                      |
|                       |                       |                      |
| Mobile                |                       |                      |
|                       |                       |                      |
| 5.547 5.551F          |                       |                      |
+-----------------------+-----------------------+----------------------+

**MOD** USA/12/244

+-----------------------------------------------------------------------+
| **42-42.5** FIXED                                                     |
|                                                                       |
| FIXED-SATELLITE (space-to-Earth) 5.551AA                              |
|                                                                       |
| BROADCASTING                                                          |
|                                                                       |
| BROADCASTING-SATELLITE                                                |
|                                                                       |
| Mobile                                                                |
|                                                                       |
| 5.547 5.551F MOD 5.551G                                               |
+-----------------------------------------------------------------------+

**Reasons:** Consequential from the ITU--R studies to protect the radio
astronomy service in the band 42.5-43.5 GHz without placing undue
constraints on the FSS and BSS in bands below 42 GHz.

**ADD** USA/12/245

draft RESOLUTION \[NSL\] (WRC-03)

Protection of radio astronomy spectral line observations\
in the 42.5-42.77 GHz band

The World Radiocommunication Conference (Geneva, 2003),

considering

*a)* that there are primary allocations to the fixed‑satellite service
(FSS) (space-to-Earth) and to the broadcasting-satellite service (BSS)
in the 42.0-42.5 GHz band;

*b)* that the band 42.5-43.5 GHz is allocated to the radio astronomy
service (RAS) on a co‑primary basis, and that spectral line observations
are conducted in this band;

*c)* that the threshold level of detrimental interference to spectral
line observations by the RAS in the 42.5-43.5 GHz band is a power
flux-density level of 153 dB(W/(m^2^ · 500 kHz)), and that this level
relates to the emissions produced by all the space stations in any
non-geostationary-satellite orbit (non-GSO) system or by any
geostationary-satellite orbit (GSO) station;

*d)* that an FSS or BSS satellite or system operating in the 42-42.5 GHz
band would encounter the greatest difficulty in meeting the detrimental
interference threshold for single dish radio telescope spectral line
observations near the 42.5 GHz band edge of the 42.5-43.5 GHz band, even
when all practicable technical or operational measures to reduce the
potential for detrimental interference to the RAS receiver sites are
employed;

*e)* that because there are relatively few RAS sites operating with
single dish telescopes in the band 42.5-43.5 GHz, and because there are
expected to be relatively few FSS or BSS earth stations operating in the
42-42.5 GHz band, it may be feasible for either or both services to
employ technical or operational measures, including but not limited to
such interference mitigation techniques as geographical isolation, time
sharing, etc., in order to reduce the potential for detrimental
interference to the RAS receiver sites operating in this band;

*f)* that, taking into account the above *considerings*, it should be
feasible to rely on arrangements between concerned RAS and FSS/BSS
administrations to ensure that the unwanted emissions for FSS and BSS
satellites and systems at 42-42.5 GHz do not cause detrimental
interference to RAS stations conducting spectral line observations in
the 42.5-42.77 GHz band,

resolves

1 that an administration that plans to operate a GSO FSS or BSS
satellite or a non-GSO FSS or BSS system in the 42-42.5 GHz band shall
take all practicable steps, to avoid exceeding the detrimental
interference threshold of --153 dB(W/(m^2^ · 500 kHz)) in the
42.5‑42.77 GHz band, for more than 2% of the time, at the site of a
radio astronomy station registered as a single dish telescope;

2 that, in the event that an administration planning a GSO FSS or BSS
satellite or a non‑GSO FSS or BSS system in the band 42-42.5 GHz has
taken all practicable steps to avoid exceeding the detrimental
interference threshold and percentage of time criterion in *resolves* 1
in the 42.5‑42.77 GHz band, but that nevertheless would not meet them,
the administration planning such a satellite or systems shall enter into
discussions with the administration operating the affected radio
astronomy station to arrive at a mutually satisfactory arrangement with
respect to the unwanted emissions to be produced into the band
42.5-42.77 GHz;

3 that *resolves* 1 and 2 shall apply with respect to any radio
astronomy station registered as a single dish telescope in the band
42.5-43.5 GHz that was in operation prior to the end of WRC‑03 and that
has been notified to the ITU before 4 January 2004, or that was notified
before the date of receipt of the advance publication information of an
FSS or BSS satellite or system to which the limits in No. **5.551G**
apply;

4 that any radio astronomy station that is notified as a single dish
telescope after the dates provided in *resolves* 3 may seek an agreement
with administrations authorizing FSS or BSS satellites or systems to
which the limits in No. **5.551G** apply;

5 that the obligations on administrations under this Resolution shall
apply to any FSS or BSS network and system in the band 42-42.5 GHz for
which complete coordination (GSO) or notification (non-GSO) information
has been received after 3 June 2000,

instructs the Director of the Radiocommunication Bureau

to review, on the basis of this Resolution and the modification to No.
**5.551G** made by this Conference, any findings made pursuant to No.
**5.551G (WRC-2000)** and Resolution **128 (Rev.WRC-2000)** in the
interval between the end of WRC-2000 and the end of WRC-03.

**Reasons:** To provide a coordination mechanism for the protection of
radio astronomy stations conducting spectral line observations in the
42.5-42.77 GHz band from FSS and BSS satellites and systems operating in
the 42-42.5 GHz band.

APPENDIX 4 (WRC-2000)

ANNEX 2A

Characteristics of satellite networks' earth stations\
or radio astronomy stations^2^     (WRC‑2000)

\...

# C Characteristics to be provided for each group of frequency assignments for a satellite antenna beam or an earth station or radio astronomy station antenna

\...

**MOD** USA/12/246

## C.14 Type of observation

The type of observation to be taken at the radio astronomy station on
the frequency band shown in § C.3 *b)*. Single dish (S) observations for
telescopes used for single dish or closely connected arrays, or very
long baseline interferometry (VLBI) (V) for dishes used only for VLBI
observations should be specified.

**Reasons:** Consequential.

ANNEX 2B

Table of characteristics to be submitted for space and radio astronomy
services

**MOD** USA/12/247

**C -- Characteristics to be provided for each group of frequency
assignments for a satellite antenna beam or an earth station antenna**
*(end)*     (WRC‑2000)

<table>
<colgroup>
<col style="width: 5%" />
<col style="width: 7%" />
<col style="width: 11%" />
<col style="width: 10%" />
<col style="width: 8%" />
<col style="width: 8%" />
<col style="width: 8%" />
<col style="width: 9%" />
<col style="width: 8%" />
<col style="width: 8%" />
<col style="width: 6%" />
<col style="width: 5%" />
</colgroup>
<tbody>
<tr class="odd">
<td>Items in<br />
Appendix</td>
<td>Advance<br />
publication of a geostationary-satellite network</td>
<td>Advance publication of a<br />
non-geostationary-satellite network subject to coordination under<br />
Section II of Article 9</td>
<td>Advance publication of<br />
a non-geostationary-satellite network not subject to coordination under
Section II<br />
of Article 9</td>
<td>Notification or<br />
coordination of<br />
a geostationary-satellite network (including<br />
Appendix 30B)</td>
<td>Notification or coordination<br />
of a non-geostationary-satellite network</td>
<td>Notification or coordination of an earth station</td>
<td>Notice for space stations in the broadcasting-satellite service
under Appendix 30</td>
<td>Notice for<br />
feeder-link<br />
stations under Appendix 30A</td>
<td>Notice for stations<br />
in the fixed-<br />
satellite service under<br />
Appendix 30B</td>
<td>Items in<br />
Appendix</td>
<td>Radio<br />
astronomy</td>
</tr>
<tr class="even">
<td><blockquote>
<p>C.9.b.5</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td><blockquote>
<p>C.9.b.5</p>
</blockquote></td>
<td></td>
</tr>
<tr class="odd">
<td><blockquote>
<p>C.9.b.6</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td><blockquote>
<p>C.9.b.6</p>
</blockquote></td>
<td></td>
</tr>
<tr class="even">
<td><blockquote>
<p>C.9.b.7</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td><blockquote>
<p>C.9.b.7</p>
</blockquote></td>
<td></td>
</tr>
<tr class="odd">
<td><blockquote>
<p>C.9.b.8</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td><blockquote>
<p>C.9.b.8</p>
</blockquote></td>
<td></td>
</tr>
<tr class="even">
<td><blockquote>
<p>C.9.b.9</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td><blockquote>
<p>C.9.b.9</p>
</blockquote></td>
<td></td>
</tr>
<tr class="odd">
<td><blockquote>
<p>C.9.b.10</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td><blockquote>
<p>C.9.b.10</p>
</blockquote></td>
<td></td>
</tr>
<tr class="even">
<td><blockquote>
<p>C.9.c</p>
</blockquote></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>C.9.c</p>
</blockquote></td>
<td></td>
</tr>
<tr class="odd">
<td><blockquote>
<p>C.9.d</p>
</blockquote></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td><blockquote>
<p>C.9.d</p>
</blockquote></td>
<td></td>
</tr>
<tr class="even">
<td><blockquote>
<p>C.10.a</p>
</blockquote></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>C.10.a</p>
</blockquote></td>
<td></td>
</tr>
<tr class="odd">
<td><blockquote>
<p>C.10.b</p>
</blockquote></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td><blockquote>
<p>C.10.b</p>
</blockquote></td>
<td></td>
</tr>
<tr class="even">
<td><blockquote>
<p>C.10.c.1</p>
</blockquote></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>C.10.c.1</p>
</blockquote></td>
<td></td>
</tr>
<tr class="odd">
<td><blockquote>
<p>C.10.c.2</p>
</blockquote></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>C.10.c.2</p>
</blockquote></td>
<td></td>
</tr>
<tr class="even">
<td><blockquote>
<p>C.10.c.3</p>
</blockquote></td>
<td></td>
<td></td>
<td><blockquote>
<p>O</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>C.10.c.3</p>
</blockquote></td>
<td></td>
</tr>
<tr class="odd">
<td><blockquote>
<p>C.10.c.4</p>
</blockquote></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>C.10.c.4</p>
</blockquote></td>
<td></td>
</tr>
<tr class="even">
<td><blockquote>
<p>C.10.c.5</p>
</blockquote></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>C.10.c.5</p>
</blockquote></td>
<td></td>
</tr>
<tr class="odd">
<td><blockquote>
<p>C.10.c.6</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td><blockquote>
<p>C.10.c.6</p>
</blockquote></td>
<td></td>
</tr>
<tr class="even">
<td><blockquote>
<p>C.11.a</p>
</blockquote></td>
<td><blockquote>
<p>X10</p>
</blockquote></td>
<td><blockquote>
<p>X10</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>C.11.a</p>
</blockquote></td>
<td></td>
</tr>
<tr class="odd">
<td><blockquote>
<p>C.11.b</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td><blockquote>
<p>C.11.b</p>
</blockquote></td>
<td></td>
</tr>
<tr class="even">
<td><blockquote>
<p>C.11.c</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>C.11.c</p>
</blockquote></td>
<td></td>
</tr>
<tr class="odd">
<td><blockquote>
<p>C.11.d</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>C.11.d</p>
</blockquote></td>
<td></td>
</tr>
<tr class="even">
<td><blockquote>
<p>C.12</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>C.12</p>
</blockquote></td>
<td></td>
</tr>
<tr class="odd">
<td><blockquote>
<p>C.13</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>C.13</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
</tr>
<tr class="even">
<td><blockquote>
<p>C.14</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>C.14</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
</tr>
<tr class="odd">
<td><blockquote>
<p>C.15</p>
</blockquote></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td><blockquote>
<p>X</p>
</blockquote></td>
<td></td>
<td><blockquote>
<p>C.15</p>
</blockquote></td>
<td></td>
</tr>
</tbody>
</table>

X Mandatory information O  Optional information C  This information need
only be furnished when it has been used as a basis to effect
coordination with another administration

1 Only the value of maximum power density is mandatory.

2 For transmission from the space station only.

3 For space-to-space relay only.

4 For transmission from the earth station only.

5 Not required for coordination under Nos. **9.15**, **9.17** or
**9.17A**.

6 Required, if applicable, for the type of transmission. If not
applicable, a reason why it is not applicable is required.

7 One or the other of C.8.a or C.8.b is mandatory, but not both.

8 Only the value of total peak envelope power is required for
coordination under Nos. **9.15**, **9.17** or **9.17A**.

10 Only the list of country or geographic designators or a narrative
description of the service area shall be supplied.

11 Not required for coordination under No. **9.7A** or **9.7B**.

**Reasons:** Consequential.

**SUP** USA/12/248

RESOLUTION 128 (Rev.WRC-2000)

Protection of the radio astronomy service in the 42.5-43.5 GHz band

**Reasons:** As a consequence of the ITU-R technical studies, and of the
modification of No. 5.551G, Resolution 128 (Rev.WRC-2000) is no longer
needed.

b -- Resolution 84

Background information

Various segments of the 37.5-43.5 GHz band are allocated to the FS, FSS,
BSS and MSS on a co‑primary basis. Segments of this band are being used
or planned for high-density applications in the FS ("HDFS"), and other
segments of the band are planned for deployment of high-density
applications in the FSS ("HDFSS"). Co-frequency sharing is not feasible
between HDFS and HDFSS systems, but sharing situations where only one of
the services operates with ubiquitously deployed small terminals may be
practicable.

Significant actions were taken at WRC-2000 with respect to the 37.5-43.5
GHz band. Among other things, WRC-2000 adopted provisional power
flux-density (pfd) limits for geostationary and non‑geostationary
satellites in the fixed-satellite service (FSS), in the
broadcasting-satellite service (BSS), and in the mobile-satellite
service (MSS) in this frequency range. WRC-2000 also called for study of
the criteria and techniques to address interference from transmitters of
FS into earth station receivers in high-density applications in the FSS
in the bands 39.5-40.0 GHz and 40.5‑42.0 GHz intended to operate in the
same geographic area.

ITU-R has now completed its study of the provisional pfd limits adopted
for satellites of the FSS, BSS, and MSS in the 37.5-42.5 GHz range, and
has concluded that the provisional pfd limits can be confirmed at their
current values. In so doing, ITU-R noted the position of some Region 2
administrations that, to protect certain sensitive FS links in the
37.5-40 GHz band, it would be necessary for a GSO FSS satellite
providing service on their territory to reduce the pfd levels that are
produced during clear-sky operation by 12 dB from the respective levels
in Table 21-4 of Article 21. ITU-R also acknowledged that these pfds may
constrain the FSS to the use of only large coordinated earth stations in
this band. Nevertheless, for both GSO and non-GSO FSS satellites, ITU-R
concluded that it was appropriate to maintain the pfd values in Table
21-4 of Article 21. The confirmation of the provisional pfd limits would
provide satisfactory closure to a complex and difficult set of issues
that has been intensively studied within the ITU-R for more than five
years.

ITU-R, however, did not complete its study of the criteria and
techniques for addressing interference from transmitters of the fixed
service into earth station receivers in high-density applications in the
bands 39.5-42 GHz and intended for operation in the same geographic
area. This aspect of Resolution 84 (WRC-2000) formed an essential part
of the overall arrangement between the FSS and the FS in the 37.5-42.5
GHz range. Although study of the pfd-related elements of sharing in the
37.5-42.5 GHz range has been completed and regulations on the subject
are able to be finalized at WRC-03, ITU-R should continue the studies
called for in *invites* 6 of Resolution 84 regarding means of addressing
interference from transmitters of the FS into earth station receivers in
high-density applications in the 40-42 GHz portion of the 39.5-42 GHz
band.

Proposals of the United States to implement the conclusions reached by
ITU-R in its studies under Resolution 84, as well to reflect the ITU-R's
identification of the area where further study still is needed, are
provided below:

Proposals

ARTICLE 21

Terrestrial and space services sharing frequency bands above 1 GHz

**MOD** USA/12/249

*TABLE **21-4** (continued)*

+--------------+--------------+------+------+------+---------+------+
| Frequency    | Service\*    | L    |      |      |         | R    |
| band         |              | imit |      |      |         | efer |
|              |              | in   |      |      |         | ence |
|              |              | dB(W |      |      |         | b    |
|              |              | /m2) |      |      |         | andw |
|              |              | for  |      |      |         | idth |
|              |              | an   |      |      |         |      |
|              |              | gle\ |      |      |         |      |
|              |              | of   |      |      |         |      |
|              |              | arr  |      |      |         |      |
|              |              | ival |      |      |         |      |
|              |              | ()   |      |      |         |      |
|              |              | a    |      |      |         |      |
|              |              | bove |      |      |         |      |
|              |              | the  |      |      |         |      |
|              |              | ho   |      |      |         |      |
|              |              | rizo |      |      |         |      |
|              |              | ntal |      |      |         |      |
|              |              | p    |      |      |         |      |
|              |              | lane |      |      |         |      |
+--------------+--------------+------+------+------+---------+------+
|              |              | 0    | 5°   |      | 25°-90° |      |
|              |              | °-5° | -25° |      |         |      |
+--------------+--------------+------+------+------+---------+------+
| > \...       |              |      |      |      |         |      |
+--------------+--------------+------+------+------+---------+------+
| > 37.5-40    | > Fixe       | > -  | --1  |      | > --    | > 1  |
| > GHz        | d-satellite\ | -120 | 20 + |      | 105  10 | >    |
|              | > (non       |   10 | 0.7  |      |         |  MHz |
|              | -geostationa |      | 5( - |      |         |      |
|              | ry-satellite |      | - 5) |      |         |      |
|              | > orbit)     |      |   10 |      |         |      |
|              | >            |      |      |      |         |      |
|              | > Mobil      |      |      |      |         |      |
|              | e-satellite\ |      |      |      |         |      |
|              | > (non       |      |      |      |         |      |
|              | -geostationa |      |      |      |         |      |
|              | ry-satellite |      |      |      |         |      |
|              | > orbit)     |      |      |      |         |      |
+--------------+--------------+------+------+------+---------+------+
| > 37.5-40    | > Fixe       | > -  | > ** | >    | > --105 | > 1  |
| > GHz        | d-satellite\ | -127 | 5°-2 |  **2 |         | >    |
|              | >            |      | 0°** | 0°-2 |         |  MHz |
|              | (geostationa |      |      | 5°** |         |      |
|              | ry-satellite |      |      |      |         |      |
|              | > orbit)     |      |      |      |         |      |
|              | >            |      |      |      |         |      |
|              | > Mobi       |      |      |      |         |      |
|              | le-satellite |      |      |      |         |      |
|              | >            |      |      |      |         |      |
|              | (geostationa |      |      |      |         |      |
|              | ry-satellite |      |      |      |         |      |
|              | > orbit)     |      |      |      |         |      |
+--------------+--------------+------+------+------+---------+------+
|              |              |      | --1  | --1  |         |      |
|              |              |      | 27 + | 07 + |         |      |
|              |              |      | (4   | 0.4\ |         |      |
|              |              |      | /3)\ | ( -- |         |      |
|              |              |      | ( -  |  20) |         |      |
|              |              |      | - 5) |      |         |      |
+--------------+--------------+------+------+------+---------+------+
| > 40-40.5    | > Fix        | > -  | --1  |      | > --105 | > 1  |
| > GHz        | ed-satellite | -115 | 15 + |      |         | >    |
|              |              |      | 0.   |      |         |  MHz |
|              |              |      | 5( - |      |         |      |
|              |              |      | - 5) |      |         |      |
+--------------+--------------+------+------+------+---------+------+
| > 40.5-42    | > Fixe       | > -  | --1  |      | > --    | > 1  |
| > GHz        | d-satellite\ | -115 | 15 + |      | 105  10 | >    |
|              | > (non       |   10 | 0.   |      |         |  MHz |
|              | -geostationa |      | 5( - |      |         |      |
|              | ry-satellite |      | - 5) |      |         |      |
|              | > orbit)     |      |   10 |      |         |      |
|              | >            |      |      |      |         |      |
|              | >            |      |      |      |         |      |
|              |  Broadcastin |      |      |      |         |      |
|              | g-satellite\ |      |      |      |         |      |
|              | > (non       |      |      |      |         |      |
|              | -geostationa |      |      |      |         |      |
|              | ry-satellite |      |      |      |         |      |
|              | > orbit)     |      |      |      |         |      |
+--------------+--------------+------+------+------+---------+------+
| > 40.5-42    | > Fixe       | > -  | > ** | >    | > --105 | > 1  |
| > GHz        | d-satellite\ | -120 | 5°-1 |  **1 |         | >    |
|              | >            |      | 5°** | 5°-2 |         |  MHz |
|              | (geostationa |      |      | 5°** |         |      |
|              | ry-satellite |      |      |      |         |      |
|              | > orbit)     |      |      |      |         |      |
|              | >            |      |      |      |         |      |
|              | >            |      |      |      |         |      |
|              |  Broadcastin |      |      |      |         |      |
|              | g-satellite\ |      |      |      |         |      |
|              | >            |      |      |      |         |      |
|              | (geostationa |      |      |      |         |      |
|              | ry-satellite |      |      |      |         |      |
|              | > orbit)     |      |      |      |         |      |
+--------------+--------------+------+------+------+---------+------+
|              |              |      | >    | --1  |         |      |
|              |              |      |  --1 | 10 + |         |      |
|              |              |      | 20 + | 0.5\ |         |      |
|              |              |      | >    | ( -- |         |      |
|              |              |      |  ( - |  15) |         |      |
|              |              |      | - 5) |      |         |      |
+--------------+--------------+------+------+------+---------+------+

**MOD** USA/12/250

TABLE **21-4** *(end)*

**Reasons:** On the basis of its studies under Resolution 84 (WRC-2000),
ITU-R has confirmed the pfd values for FSS, MSS and BSS satellites in
the 37.5-42.5 GHz range. As a result, it is appropriate to remove the
provisional status that was placed on these limits by WRC-2000.

**SUP** USA/12/251

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

^16^ **21.16.11**

**Reasons:** Consequential to proposals USA/12/249-250.

**SUP** USA/12/252

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

^17^ **21.16.12**

**Reasons:** Consequential to proposals USA/12/249-250.

**SUP** USA/12/253

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

^18^ **21.16.13**

**Reasons:** Consequential to proposals USA/12/249-250.

ARTICLE 5

**MOD** USA/12/254

**5.551AA** In the bands 37.5-40 GHz and 40.5-42.5 GHz, the

power flux-density at the Earth's surface from any fixed-satellite
service space station should be no greater than the level(s) required to
meet the fixed-satellite service link availability and performance
objectives of the subject applications, and no greater than the relevant
power flux-density limits in Table **21-4**, while addressing the
sharing conditions with the fixed service.     (WRC‑03)

**Reasons:** Even with the confirmation of the provisional pfd levels
pursuant to ITU-R studies under Resolution 84 (WRC-2000), it is
important to the sharing conditions with the FS that the satellite pfds
be only at the level required to meet link availability and performance
objectives.

**MOD** USA/12/255

40.5-51.4 GHz

+-----------------------+-----------------------+----------------------+
| Allocation to         |                       |                      |
| services              |                       |                      |
+-----------------------+-----------------------+----------------------+
| Region 1              | Region 2              | Region 3             |
+-----------------------+-----------------------+----------------------+
| **40.5-41**           | **40.5-41**           | **40.5-41**          |
|                       |                       |                      |
| FIXED                 | FIXED                 | FIXED                |
|                       |                       |                      |
| FIXED-SATELLITE\      | FIXED-SATELLITE\      | FIXED-SATELLITE\     |
| (space-to-Earth)\     | (space-to-Earth)\     | (space-to-Earth)\    |
| MOD 5.551AA           | MOD 5.551AA           | MOD 5.551AA          |
|                       |                       |                      |
| BROADCASTING          | BROADCASTING          | BROADCASTING         |
|                       |                       |                      |
| B                     | B                     | BR                   |
| ROADCASTING-SATELLITE | ROADCASTING-SATELLITE | OADCASTING-SATELLITE |
|                       |                       |                      |
| Mobile                | Mobile                | Mobile               |
|                       |                       |                      |
| 5.547                 | Mobile-satellite      | 5.547                |
|                       | (space-to-Earth)      |                      |
|                       |                       |                      |
|                       | 5.547                 |                      |
+-----------------------+-----------------------+----------------------+

**Reasons:** Consequential to the inclusion of the 40.5-42 GHz band in
No. 5.551AA, as proposed to be modified in proposal No. USA/12/254
above.

**ADD** USA/12/256

draft RESOLUTION \[BSA\] (WRC-03)

Means to address interference from transmitters of the fixed service\
into earth station receivers in high‑density applications in the\
fixed-satellite service having allocations in the band 40-42 GHz\
and intended for operation in the same geographic area

The World Radiocommunication Conference (Geneva, 2003),

considering

*a)* that this Conference has established power flux-density (pfd)
limits for the fixed‑satellite service (FSS) (space-to-Earth) in the
bands 37.5-40.0 GHz and 40.5-42.5 GHz, and the mobile‑satellite service
(MSS) (space-to-Earth) in the band 39.5-40 GHz;

*b)* that, in the band 37.5-42.5 GHz, Recommendation ITU-R SF.1484-1
recommends maximum pfd levels for non-geostationary (non-GSO) FSS
satellites and Recommendation ITU-R SF.\[4-9S/BL/3\] recommends maximum
pfd levels for geostationary (GSO) FSS satellites;

*c)* that, although sharing is feasible between FSS earth stations and
terrestrial stations provided that appropriate coordination procedures
and/or operational techniques are employed, sharing may in practice
become difficult when high geographic densities of such stations are
deployed in bands heavily used by either service;

*d)* that, within the range 40-42 GHz, many administrations plan to
deploy FSS systems using ubiquitous very small aperture terminals;

*e)* that WRC-2000 invited ITU-R to undertake, as a matter of urgency,
studies on the appropriate criteria and techniques for addressing
interference from transmitters of the fixed service into earth station
receivers in high‑density applications in the FSS having allocations in
the bands 39.5-40 GHz and 40.5-42 GHz and intended for operation in the
same geographic area;

*f)* that ITU-R has not yet completed the studies described in
*considering e)* above,

resolves to invite ITU-R

1 to undertake, as a matter of urgency, studies on the appropriate
criteria and techniques for addressing interference from transmitters of
the fixed service into earth station receivers in high‑density
applications in the FSS having allocations in the band 40-42 GHz and
intended for operation in the same geographic area;

2 to report on the results of these studies in time for WRC-07,

recommends

that WRC-07 take appropriate action based on the results of these
studies.

**Reasons:** Work was not completed on *invites* 6 from WRC-2000
Resolution 84. This is important work in the overall sharing
arrangements for FSS and FS in the 37.5-42.5 GHz frequency range, and
should be completed within the interval between WRC-03 and WRC-07. The
band under consideration for these studies should be concentrated on the
40-42 GHz band.

**SUP** USA/12/257

RESOLUTION 84 (WRC-2000)

Power flux-density limits in the bands 37.5-42.5 GHz for the
fixed-satellite service, broadcasting-satellite service and
mobile-satellite service

**Reasons:** Consequential to the confirmation of the power flux-density
levels within the 37.5‑42.5 GHz band pursuant to ITU-R study, and the
capture in new Resolution BSA of the holdover point from *invites* 6 of
Resolution 84 (WRC-2000).

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