# United States of America

## DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE

**Agenda Item 1.11 :** to review sharing criteria and regulatory
provisions for protection of terrestrial services in particular
terrestrial television broadcasting services, in the band 620 -- 790 MHz
from BSS networks and systems, in accordance with **Res. 545 (WRC-03)**"

**Background Information** : The following proposal is a
**Modification** and **Augmentation** to CITEL PCC.II IAP for WRC-07
Agenda Item 1.11.

The sixth meeting of CITEL PCC.II developed an IAP for WRC-07 Agenda
Item 1.11, which the US signed. The United States strongly supports the
goal of this IAP, i.e. to protect terrestrial services in the 620-790
MHz band from harmful interference of transmitting co-frequency
broadcast-satellite systems. In order to ensure the best protection of
terrestrial systems, the United States believes that certain
modifications are needed to augment the IAP. These modifications,
summarized in the following paragraphs, are provided in the attached
edits to the current IAP.

The current IAP, that specifies NOC to Articles **5**, **9**, and **11**
of the Radio Regulations, needs to be slightly modified because the
Article 5 provision dealing with the 620-790 MHz BSS allocation, No.
**5.311**, does not indicate a reference bandwidth for the pfd. One is
needed to avoid questions over the level of protection afforded to
terrestrial services. Furthermore, Res. **545**, the companion
resolution to this agenda item, should be modified to reflect that
studies on this topic are completed and to address transitional measures
(e.g., how the Bureau should process the BSS submissions suspended by
WRC-03).

In order to define an appropriate reference bandwidth for the pfd, it is
assumed that the reference bandwidth for the current pfd is 24 MHz,
recognizing that the larger the bandwidth assumed for a given pfd value,
the greater protection provided to terrestrial services. Then, to
protect broadcast systems and more narrowband systems, the pfd is
translated into a 4 kHz bandwidth.

The following pages indicate the modification to the IAP for agenda item
1.11 in strikethrough/underline format.

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|    |                                        |              |        |
+----+----------------------------------------+--------------+--------+
|    | **INTER-AMERICAN PROPOSALS OF WSG-2**  |              |        |
+----+----------------------------------------+--------------+--------+
|    | **(Item on the Agenda: 4.1 )**         |              |        |
+----+----------------------------------------+--------------+--------+
|    | **(Document submitted by working       |              |        |
|    | sub-group 2 (WSG-2) )**                |              |        |
+----+----------------------------------------+--------------+--------+

**Agenda Item 1.11: *to review sharing criteria and regulatory
provisions for protection of terrestrial services in particular
terrestrial television broadcasting services, in the band 620 -- 790 MHz
from BSS networks and systems, in accordance with Resolution 545
(WRC-03)***

**Background**

Under footnote No.**5.311**, the band 620-790 MHz may be used for
assignments to television stations using frequency modulation in the BSS
(GSO or non-GSO). Since this band is extensively used by terrestrial
applications, Recommendation **705 (WARC-79)** includes, among other
things, satellite pfd limits needed to protect the terrestrial services,
in particular, the terrestrial television broadcasting service that uses
this band extensively in all three Regions.. It should also be noted
that there are allocations to the fixed and mobile services in some
regions in this band that also need to be addressed. In particular, some
Region 2 administrations added their names to footnote No.**5.293**
which allocates the band to the fixed and mobile services on a primary
basis in several Region 2 countries.

In Region 2 the 620-790 MHz band is used extensively by free-to-air TV
systems. As a result of this extensive use of the 620-790MHz band,
Region 2 Administrations have not made allowances for external
interference in the deployment of their terrestrial TV systems or in the
development of their TV allotment plans or in the development of other
fixed and mobile services and therefore, there are no excess margins
which could have been used to accommodate additional interference from
systems in the BSS.

WRC-03 adopted a freeze on the processing of BSS satellite filings in
the band until the next WRC as per a new Resolution **545 (WRC-03)** and
suspended the application of No.**5.311** and Recommendation **705**
**(WARC-79)** until that date. The Resolution was acceptable to all
parties with the understanding:

1)  it allows for studies to continue on the appropriate protection
    levels for the terrestrial broadcasting service (BS) to be
    determined;

2)  it does not impact the Regional Planning Conference
    (RRC-04/[06,]{.underline} Region 2 is not affected) for these
    services;

3)  it places a moratorium on further deployments of BSS networks in
    these bands until such studies are complete.

[This proposal modifies **No. 5.311** and Res. **545** to ensure the
complete protection of the current and future usage of the broadcast,
mobile, and fixed services in the 620-790 MHz band from interference
from broadcast satellite operations in this same band. The purpose of
this propose is to restrict the future deployment of broadcast satellite
systems in a band that is very extensively used by terrestrial
services.]{.underline}

[Since neither No. **5.311** nor Rec. **705** indicate a reference
bandwidth for the BSS pfd limit in 620-790 MHz band, a reference
bandwidth of 24 MHz is assumed and then translated further to a 4 kHz
bandwidth, and No. **5.311** is accordingly modified. Res. **545** from
WRC-03 is modified to address transitional issues related to resuming
processing of BSS networks after WRC-03 suspended such processing by the
BR.]{.underline}

[As a consequence, Rec. **705**, "Criteria to be applied for frequency
sharing between the broadcasting-satellite service and the terrestrial
broadcasting service in the band 620-790 MHz", is deleted since its
relevant content, the pfd limit reference, is contained in the
modifications to No. **5.311** and Res. **545**, and after WRC-07 the
broadcast satellite and terrestrial broadcast issues in this band will
have been resolved.]{.underline}

**MOD 5.311** Within the frequency band 620-790 MHz, assignments may be
made to television stations using [analog]{.underline} frequency
modulation in the broadcasting-satellite service subject to agreement
between the administrations concerned and those having services,
operating in accordance with the Table, which may be affected (see
Resolutions **33 (Rev.WRC‑03)** and **507 (Rev.WRC‑03)**). Such stations
shall not produce a power flux-density in excess of the value ~~--129~~
[166.8]{.underline} dB(W/m^2^[/ 4 kHz)]{.underline} for
[all]{.underline} angles of arrival ~~less than 20º (see Recommendation
**705**)~~ within the territories of other countries without the consent
of the administrations of those countries. Resolution **545
(WRC~~‑03~~[07]{.underline})**
applies.     (WRC-**~~‑03~~[07]{.underline}**)

**[SUP Rec. 705]{.underline}**

**Reasons**: Region 2 administrations have no plans to implement BSS
systems in the band 620-790 MHz. The administrations in Region 2 are
currently operating or planning to operate a large number of terrestrial
analog and digital television broadcasting systems. In addition, some
Region 2 administrations will be implementing mobile and fixed services,
including public safety applications. As a result of this extensive use
of the 620-720MHz by existing systems, Region 2 Administrations have not
allocated any additional interference margins for the protection of
terrestrial TV broadcasting and therefore any additional interference
from BSS will place undue constraints on the existing and planned
services in Region 2.

**[MOD Res. 545]{.underline}**

RESOLUTION **545** (~~r~~[Rev.]{.underline} WRC-0[7]{.underline}~~3~~)

T[r]{.underline}~~echnical and regulatory procedures~~[ansitional
measures]{.underline} relating to the broadcasting-satellite service
networks ~~operating~~ in the 620-790 MHz band

The World Radiocommunication Conference (Geneva,
200[7]{.underline}~~3~~),

considering

*a)* that No.** 5.311** provides the conditions under which the band
620-790 MHz may be used for assignments to television stations using
[analog]{.underline} frequency modulation in the broadcasting-satellite
service (BSS);

*b)* that it is necessary to adequately protect terrestrial services
including the terrestrial television broadcasting systems [and fixed and
mobile systems]{.underline} in this band;

*~~c)~~* ~~that the sharing and associated provisions for satellite
networks are under study in ITU‑R with respect to the impact of such
systems on the terrestrial services;~~

*[c]{.underline}~~d~~)* that geostationary-satellite (GSO) BSS networks
and non-geostationary (non‑GSO) BSS satellite networks or systems are at
the stage of advance publication or coordination, or have been notified
in the 620-790 MHz frequency band;

*~~e~~[d]{.underline})* that ~~studies are being undertaken to
determine, *inter alia*, the planning criteria to be used for~~ the
Regional Radiocommunication Conference (RRC‑04/05) [effected a
terrestrial digital television broadcasting plan]{.underline} for
Region 1 and one country in Region 3;

*[e]{.underline}~~f~~)* ~~that the impact of these GSO BSS networks and
non-GSO BSS satellite networks or systems on terrestrial services
including digital and analogue television broadcasting systems has yet
to be examined;~~

*[f]{.underline}~~g~~)* that there are at present few GSO networks
operating in accordance with No. **5.311;**

*~~h)~~* ~~that it would be inappropriate to draw any conclusions
regarding the form and levels of the protection criteria and their
application to GSO BSS networks and non-GSO BSS satellite networks or
systems until the completion of relevant studies and the approval of
corresponding ITU‑R Recommendations;~~

*[g]{.underline}~~i~~)* that many administrations have extensive
infrastructure for the transmission and reception of analogue and
digital television services between 620 MHz and 790 MHz,

[*h)* that some administrations are using or plan to use portions of the
620-790 MHz band for fixed and mobile service applications]{.underline}

noting

~~*a)* that the protection of terrestrial television services in the
band 620-790 MHz requires more study before any conclusion can be made
about the appropriate pfd values;~~

~~*b)* that studies called for in Recommendation **705** have been
recently initiated but not completed;~~

~~*c)* that the reference bandwidth of the pfd limit in No. **5.311** is
undefined and guidance is urgently needed and has been requested by the
Radiocommunication Bureau;~~

~~*d)* that the existing provisions related to the band 620-790 MHz are
ambiguous and have been difficult to apply by administrations and the
Bureau,~~ [that WRC-03 suspended processing of submissions of BSS
networks or systems in the 620-790 MHz band, irrespective of their date
of receipt, pending WRC-07 decisions;]{.underline}

[a) that WRC-03 specified that GSO BSS networks and non-GSO BSS
satellite networks or systems in the frequency band 620-790 MHz other
than those notified, brought into use and the date of bringing into use
confirmed before the end of WRC‑03, shall not be brought into use before
the end of WRC‑07;]{.underline}

[b) that transitional measures are needed to address the WRC-03
decisions in notings a) and b),]{.underline}

resolves

1 that[, at the end of WRC-07,]{.underline} the processing of
submissions of GSO BSS networks and non-GSO BSS satellite networks or
systems in the frequency band 620-790 MHz received by the Bureau and not
brought into use prior to 5 July 2003, irrespective of their date of
receipt, ~~shall be suspended pending WRC‑07 decisions on the sharing
criteria, including the pfd required to protect the terrestrial services
in this frequency band~~ [shall resume, with No. **5.311** as revised by
WRC-07 applied]{.underline};

2 to ~~suspend~~ [apply]{.underline} ~~the application of~~
No. **5.311** ~~and Recommendation **705** until the end of WRC‑07 with
respect~~ [as revised by WRC-07]{.underline} to the GSO BSS networks and
non-GSO BSS satellite networks or systems in the frequency band
620-790 MHz and for which notification is received between 5 July 2003
and the end of WRC‑07;

[3 that No. **5.311** as revised by WRC-07 shall be applied to all GSO
BSS networks and non-GSO BSS networks or systems in the frequency band
620-790 MHz other than those notified, brought into use and the date of
bringing into use confirmed before the end of WRC‑03;]{.underline}

[4]{.underline}~~3~~ that[, in accordance with No. **5.311** (as revised
by WRC-07),]{.underline} ~~GSO BSS networks and non-GSO BSS satellite
networks or systems in the frequency band 620-790 MHz other than those
notified, brought into use and the date of bringing into use confirmed
before the end of WRC‑03, shall not be brought into use before the end
of WRC‑07~~[no submissions for GSO BSS networks and non-GSO BSS
satellite networks or systems in the frequency band 620-790 MHz under
Articles 9 or 11 of the Radio Regulations involving digital transmission
shall be accepted]{.underline};

[5]{.underline}~~4~~ that the notified date of bringing into use
referred in Nos. **11.44** and **11.48** for GSO BSS networks and
non-GSO BSS satellite networks or systems in this frequency band for
which the Bureau receives notification prior to 5 July 2003 shall be
extended by the length of the period from the date of receipt by the
Bureau of the complete advanced publication information to the end of
WRC‑07;~~5 that the BSS systems referred to in *resolve*s 1 above shall
not be taken into account in the application of *resolves *3.1C and 3.4
of Council Resolution 1185;~~

6 that in the band 620-790 MHz, No. **22.2** shall ~~continue to~~ apply
to assignments to non‑GSO satellite systems in the BSS[, including
those]{.underline} for which complete notification information is
considered to have been received by the Bureau prior to 5 July 2003 ~~in
respect of assignments to GSO satellite networks in the BSS for which
complete coordination information is considered to have been received by
the Bureau prior to 5 July 2003. The relationship between GSO networks
and non‑GSO satellite networks or systems for which complete
Appendix **4** information has been received by the Bureau after
4 July 2003 in the band 620-790 MHz is subject to the procedures to be
decided at WRC‑07~~,

~~invites ITU-R~~

~~to conduct studies as a matter of urgency, and develop sharing
criteria and regulatory provisions, prior to WRC‑07, for the protection
of terrestrial services, in particular terrestrial television
broadcasting services, in the 620-790 MHz band from GSO BSS networks and
non‑GSO BSS satellite networks or systems which it is planned to operate
in this band,~~

instructs the Director of the Radiocommunication Bureau

~~subject to the decisions taken by WRC-07,~~ to resume, as appropriate,
the application of Nos. **5.311** [(as revised by
WRC-07)]{.underline}**, 9.34** and **11.30** and other relevant
associated provisions of the Radio Regulations~~,~~

~~instructs the Secretary-General~~

~~to bring this Resolution to the attention of the Regional
Radiocommunication Conference, 2004/2005 (RRC‑04/05)~~

**Reasons**: To bring the Resolution up to date and to specify how BSS
filings will be processed.

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