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  **World Radiocommunication Conference (WRC-07)\  ![](media/image1.png){width="1.9270833333333333in"
  Geneva, 22 October - 16 November 2007**          height="0.8125in"}

                                                   

                                                   

  **PLENARY MEETING**                              **Addendum 7 to Document 10-E**

                                                   **7 August 2007**

                                                   **Original: English**

                                                   

  EUROPEAN COMMON PROPOSALS FOR\                   
  THE WORK OF THE CONFERENCE                       

  PART 7                                           

  Agenda item 1.7                                  
  ------------------------------------------------ ----------------------------------------------------

1.7 to consider the results of ITU-R studies regarding sharing between
the mobile-satellite service and the SRS (passive) in the band
1 668-1 668.4 MHz, and between the mobile-satellite service and the
mobile service in the band 1 668.4-1 675 MHz in accordance with
Resolution **744 (WRC‑03)**

Sub-part 7A

Sharing between MSS and SRS (passive)

Introduction

Sharing between the MSS and SRS (passive) systems in the band 1 668-1
668.4 MHz has been shown to be feasible, but may require some
constraints on the systems involved. Of the two regulatory approaches
which have been considered, CEPT supports an approach based on
coordination rather than hard limits. This will allow important system
specific factors (particularly relating to MSS systems) to be taken into
account and will avoid potential unnecessary constraints on MSS
operations. All planned SRS (passive) systems will be adequately
protected.

Europe proposes coordination thresholds based on the MES e.i.r.p.
spectral density and the total power-spectral density delivered to an
MES antenna.

ARTICLE 5

Frequency allocations

Section IV -- Table of Frequency Allocations\
(See No. 2.1)

**MOD** EUR/10A7/1

1 660-1 710 MHz

+-----------------------+-----------------------+-----------------------+
| Allocation to         |                       |                       |
| services              |                       |                       |
+-----------------------+-----------------------+-----------------------+
| Region 1              | Region 2              | Region 3              |
+-----------------------+-----------------------+-----------------------+
| **1 668-1 668.4**     |                       |                       |
| MOBILE-SATELLITE      |                       |                       |
| (Earth-to-space)      |                       |                       |
| 5.348C MOD 5.379B     |                       |                       |
| 5.379C                |                       |                       |
|                       |                       |                       |
| RADIO ASTRONOMY       |                       |                       |
|                       |                       |                       |
| SPACE RESEARCH        |                       |                       |
| (passive)             |                       |                       |
|                       |                       |                       |
| Fixed                 |                       |                       |
|                       |                       |                       |
| Mobile except         |                       |                       |
| aeronautical mobile   |                       |                       |
|                       |                       |                       |
| 5.149 5.341 5.379     |                       |                       |
| 5.379A MOD 5.379D     |                       |                       |
+-----------------------+-----------------------+-----------------------+

**MOD** EUR/10A7/2

**5.379B** The use of the band 1 668-1 675 MHz by the mobile-satellite
service is subject to coordination under No. **9.11A**. [In the band 1
668-1]{.underline} [668.4]{.underline} [MHz,]{.underline}
mobile-satellite service systems that exceed the relevant coordination
threshold condition shall be coordinated with any space research service
(passive) system for which complete advance publication information was
received by the Bureau prior to 8 December 2005, irrespective of the
date of receipt of the coordination information.     (WRC-07)

**MOD** EUR/10A7/3

**5.379D** For sharing of the band 1 668-1 675 MHz between the
mobile-satellite service and the fixed and mobile services,
Resolution **744 (WRC‑03)** shall apply.     (WRC-03)

APPENDIX 5 (Rev.WRC‑03)

Identification of administrations with which coordination is to be
effected or\
agreement sought under the provisions of Article 9

**MOD** EUR/10A7/4

TABLE 5-1 (*continued*)     (Rev.WRC‑03)

+-----+-----------+-----------+-----------------+--------+-----------+
| R   | Case      | Frequency | Thre            | Calcul | Remarks   |
| efe |           | bands\    | shold/condition | ation\ |           |
| ren |           | (and      |                 | method |           |
| ce\ |           | Region)   |                 |        |           |
| of\ |           | of the    |                 |        |           |
| A   |           | service\  |                 |        |           |
| rti |           | for which |                 |        |           |
| cle |           | coor      |                 |        |           |
| 9   |           | dination\ |                 |        |           |
|     |           | is sought |                 |        |           |
+-----+-----------+-----------+-----------------+--------+-----------+
| No. | A station | Frequency | 1\) Bandwidths  | 1\)    |           |
| **9 | in a GSO  | bands for | overlap         | Check  |           |
| .13 | satellite | which a   |                 | by     |           |
| **\ | network   | footnote  | 2\) For the     | using  |           |
| GS  | in the    | refers to | band 1 668-1    | the    |           |
| O/n | frequency | No.*      | 668.4 MHz with  | as     |           |
| on‑ | bands for | * 9.11A** | respect to MSS  | signed |           |
| GSO | which a   | or No.    | network         | frequ  |           |
|     | footnote  | **9.13**  | coordination    | encies |           |
|     | refers to |           | with            | and    |           |
|     | No.       |           | [S              | band   |           |
|     | **9.11A** |           | RS]{.underline} | widths |           |
|     | or        |           | (passive)       |        |           |
|     | No.       |           | networks, in    | 2\)    |           |
|     | **9.13**, |           | addition to     | Check  |           |
|     | in        |           | bandwidth       | by     |           |
|     | respect   |           | overlap, the    | using  |           |
|     | of any    |           | e.i.r.p.        | MSS    |           |
|     | other     |           | density of      | n      |           |
|     | non-GSO   |           | mobile earth    | etwork |           |
|     | satellite |           | stations in a   | Ap     |           |
|     | network,  |           | GSO network of  | pendix |           |
|     | with the  |           | the             | 4 data |           |
|     | exception |           | m               |        |           |
|     | of        |           | obile-satellite |        |           |
|     | coo       |           | service         |        |           |
|     | rdination |           | operating in    |        |           |
|     | between   |           | this band       |        |           |
|     | earth     |           | exceeds\        |        |           |
|     | stations  |           | --4 dB(W/4 kHz) |        |           |
|     | operating |           | or the power    |        |           |
|     | in the    |           | density         |        |           |
|     | opposite  |           | delivered to    |        |           |
|     | direction |           | the MES antenna |        |           |
|     | of        |           | exceeds\        |        |           |
|     | tra       |           | --11 dB(W/4     |        |           |
|     | nsmission |           | kHz)            |        |           |
+-----+-----------+-----------+-----------------+--------+-----------+
| . . |           |           |                 |        |           |
| .   |           |           |                 |        |           |
+-----+-----------+-----------+-----------------+--------+-----------+

**Reasons:** To provide adequate protection to space research (passive)
systems while minimizing constraints on MSS systems, coordination
thresholds based on MES e.i.r.p. density and power density delivered to
the antenna of the MES would be applied. All MSS systems which exceed
the threshold condition in the band 1 668-1 668.4 MHz would be required
to coordinate with SRS (passive) systems which have submitted advance
publication information, received before 8 December 2005, to ensure that
the radioastron system (ITU filing "SPECTR-R") is taken into account.

Sub-part 7B

Sharing between MSS and MS

Introduction

In general, sharing between the mobile service and the mobile-satellite
service is difficult and could potentially prevent the use of this band
for MSS or for MS. However, as there is currently little actual use of
this band for mobile systems, it would be feasible to restrict the usage
of the mobile service to transportable radio-relay systems, thus
avoiding the introduction of aeronautical or high density mobile
applications.

e.i.r.p. limitation towards the GSO arc which may be necessary to
protect MSS satellite would prevent operation of tactical radio relays.
Several European administrations expressed the willingness to continue
transportable radio-relay operations in this frequency band and Europe
cannot support an e.i.r.p. limitation. However, it is proposed to make a
reference to Recommendation ITU-R M.\[MS-MSS-1.6 GHz\] which specifies
the value of --27 dB(W/4 kHz) in the direction of the GSO arc and to
encourage administrations to take into account the MSS protection
requirement.

ARTICLE 5

Frequency allocations

Section IV -- Table of Frequency Allocations\
(See No. 2.1)

**MOD** EUR/10A7/5

1 660-1 710 MHz

+-----------------------+-----------------------+-----------------------+
| Allocation to         |                       |                       |
| services              |                       |                       |
+-----------------------+-----------------------+-----------------------+
| Region 1              | Region 2              | Region 3              |
+-----------------------+-----------------------+-----------------------+
| **1 670-1 675**       |                       |                       |
| METEOROLOGICAL AIDS   |                       |                       |
|                       |                       |                       |
| FIXED                 |                       |                       |
|                       |                       |                       |
| MET                   |                       |                       |
| EOROLOGICAL-SATELLITE |                       |                       |
| (space-to-Earth)      |                       |                       |
|                       |                       |                       |
| MOBILE                |                       |                       |
|                       |                       |                       |
| MOBILE-SATELLITE      |                       |                       |
| (Earth-to-space)      |                       |                       |
| 5.348C 5.379B         |                       |                       |
|                       |                       |                       |
| 5.341 5.379D 5.379E   |                       |                       |
| 5.380A                |                       |                       |
+-----------------------+-----------------------+-----------------------+

**MOD** EUR/10A7/6

1 710-2 170 MHz

+-----------------------+-----------------------+-----------------------+
| Allocation to         |                       |                       |
| services              |                       |                       |
+-----------------------+-----------------------+-----------------------+
| Region 1              | Region 2              | Region 3              |
+-----------------------+-----------------------+-----------------------+
| **1 710-1 930** FIXED |                       |                       |
|                       |                       |                       |
| MOBILE 5.384A 5.388A  |                       |                       |
| 5.388B                |                       |                       |
|                       |                       |                       |
| 5.149 5.341 5.385     |                       |                       |
| 5.386 5.387 5.388     |                       |                       |
+-----------------------+-----------------------+-----------------------+

**SUP** EUR/10A7/7

**5.380**

**Reasons:** The use of aeronautical public correspondence systems in
the band 1 670-1 675 MHz is not compatible with MSS. The band is not
used or planned to be used by aeronautical public correspondence systems
and hence the footnote should be suppressed.

**MOD** EUR/10A7/8

RESOLUTION 744 (Rev.WRC-07)

Sharing between\
the mobile-satellite service (Earth-to-space) and the fixed and\
mobile services in the band 1 668.4-1 675 MHz

The World Radiocommunication Conference (Geneva, 2007),

considering

*a)* that WRC-03 made a global allocation to the mobile-satellite
service (MSS) (Earth-to-space) in the band 1 668-1 675 MHz and a global
allocation to the MSS (space-to-Earth) in the band 1 518-1 525 MHz;

*b)* that the band 1 668.4-1 675 MHz is also allocated to the fixed and
mobile services;

*c)* that due to sharing conditions between MSS (space-to-Earth) and the
aeronautical mobile service for telemetry in the band 1 518-1 525 MHz
(see No. **5.348B**), MSS operation in the United States of America is
unlikely to be feasible;

*d)* that the above constraints on the MSS in the band 1 518-1 525 MHz
therefore limit the possible use of the band 1 668-1 675 MHz by the MSS
in the United States of America;

*e)* that the band 1 670-1 675 MHz is used in the United States of
America for the fixed or mobile services;

*f)* that some administrations operate transportable radio-relay systems
in the band 1 668.4-1 675 MHz which could operate as part of the fixed
or mobile services allocations;

*g)* that sharing between the mobile service and the mobile-satellite
service (Earth-to-space) in the band 1 668.4-1 675 MHz has been studied
in Recommendation ITU-R M.1799,

resolves

1 that the use of the band 1 668.4-1 675 MHz by systems in the mobile
service is limited to transportable radio-relay systems;

2 that administrations operating transportable radio-relay systems
should take into account Recommendation ITU-R M.1799, stating that to
adequately protect MSS networks, the e.i.r.p. of transportable
radio-relay stations should not exceed −27 dB(W[/4 kHz)]{.underline} [in
the]{.underline} [band 1 668.4-1 675 MHz]{.underline} in the direction
of the geostationary orbit;

3 that, in the band 1 670-1 675 MHz, stations in the MSS shall not claim
protection from fixed and mobile stations operating in the United States
of America;

4 that *resolves* 1 and 2 do not apply to fixed and mobile stations
operating in the United States of America.

**Reasons:**

-- Studies identified in *invites ITU-R* 1 and 2 have been completed.

-- Mobile systems other than transportable radio-relay systems are not
compatible with MSS use of the band 1 668.4-1 675 MHz.

-- Administrations should be encouraged to take into account
Recommendation ITU-R M.1799, which specifies the value of --27 dB(W/4
kHz) in the direction of the GSO arc for transportable radio relays to
protect MSS space stations.

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