+----------+-------------------------------------+---------+----------+
| **X      |                                     | *       |          |
| MEETING  |                                     | *OEA/Se |          |
| OF       |                                     | r.L/XVI |          |
| PER      |                                     | I.4.2** |          |
| MANENT** |                                     |         |          |
|          |                                     | **CCP   |          |
| **CONS   |                                     | .II-RAD |          |
| ULTATIVE |                                     | IO/doc. |          |
| C        |                                     | 14      |          |
| OMMITTEE |                                     | 44/07** |          |
| II:**    |                                     |         |          |
|          |                                     | **18    |          |
| **RADIO  |                                     | June    |          |
| COMMUNIC |                                     | 2007**  |          |
| ATIONS** |                                     |         |          |
|          |                                     | **Or    |          |
| **I      |                                     | iginal: |          |
| NCLUDING |                                     | En      |          |
| BROADC   |                                     | glish** |          |
| ASTING** |                                     |         |          |
|          |                                     |         |          |
| **July   |                                     |         |          |
| 31 to    |                                     |         |          |
| August   |                                     |         |          |
| 3,       |                                     |         |          |
| 2007**   |                                     |         |          |
|          |                                     |         |          |
| **       |                                     |         |          |
| Orlando, |                                     |         |          |
| Florida, |                                     |         |          |
| United   |                                     |         |          |
| States   |                                     |         |          |
| of       |                                     |         |          |
| A        |                                     |         |          |
| merica** |                                     |         |          |
+----------+-------------------------------------+---------+----------+
|          |                                     |         |          |
+----------+-------------------------------------+---------+----------+
|          | **WRC-07 AGENDA ITEM 4:**           |         |          |
|          |                                     |         |          |
|          | **MODIFICATION TO RESOLUTION 222    |         |          |
|          | (WRC- 2007)**                       |         |          |
|          |                                     |         |          |
|          | USE OF THE BANDS 1 525-1 559 MHz    |         |          |
|          | AND 1 626.5-1 660.5 MHz BY THE      |         |          |
|          | MOBILE-SATELLITE SERVICE            |         |          |
+----------+-------------------------------------+---------+----------+
|          | **(Item on the Agenda: 4.1)**       |         |          |
+----------+-------------------------------------+---------+----------+
|          | **(Document submitted by the        |         |          |
|          | delegation of United States of      |         |          |
|          | America)**                          |         |          |
+----------+-------------------------------------+---------+----------+

**MOD** USA/ /1

RESOLUTION 222 (WRC- 2007)

Use of the bands 1 525-1 559 MHz and 1 626.5-1 660.5 MHz\
by the mobile-satellite service

The World Radiocommunication Conference ( Geneva, 2007),

considering

*a)* that prior to WRC-97, the bands 1 530-1 544 MHz (space-to-Earth)
and 1 626.5-1 645.5 MHz (Earth-to-space) were allocated to the maritime
mobile-satellite service and the bands 1 545-1 555 MHz (space-to-Earth)
and 1 646.5‑1 656.5 MHz (Earth-to-space) were allocated on an exclusive
basis to the aeronautical mobile-satellite (R) service (AMS(R)S) in most
countries;

*b)* that WRC-97 allocated the bands 1 525-1 559 MHz (space-to-Earth)
and 1 626.5-1 660.5 MHz (Earth-to-space) to the mobile-satellite service
(MSS) to facilitate the assignment of spectrum to multiple MSS systems
in a flexible and efficient manner;

*c)* that WRC-97 adopted No. **5.353A** giving priority to accommodating
spectrum requirements for and protecting from unacceptable interference
distress, urgency and safety communications of the Global Maritime
Distress and Safety System (GMDSS) in the bands 1 530-1 544 MHz and
1 626.5-1 645.5 MHz and No. **5.357A** giving priority to accommodating
spectrum requirements for and protecting from unacceptable interference
the AMS(R)S providing transmission of messages with priority categories
1 to 6 in Article **44** in the bands 1 545‑1 555 MHz and
1 646.5-1 656.5 MHz,

further considering

*a)* that coordination between satellite networks is required on a
bilateral basis in accordance with the Radio Regulations, and, in the
bands 1 525-1 559 MHz (space-to-Earth) and 1 626.5-1 660.5 MHz
(Earth-to-space), coordination is partially assisted by regional
multilateral meetings;

*b)* that, in these bands, geostationary satellite system operators
currently use a capacity-planning approach at multilateral coordination
meetings, with the guidance and support of their administrations, to
periodically coordinate access to the spectrum needed to accommodate
their requirements;

*c)* that the GMDSS and AMS(R)S spectrum requirements are currently
satisfied through the capacity-planning approach and that, in the bands
to which Nos. **5.353A** or **5.357A** apply, this approach, and other
methods such as intra- and inter-system prioritization, pre-emption and
interoperability, may assist in accommodating the expected increase of
spectrum requirements for GMDSS and AMS(R)S;

*d)* that future aviation traffic may include the implementation of new
aeronautical mobile- satellite (R) services;

recognizing

*a)* that priority access and immediate availability of spectrum for
distress, urgency and safety communications of the GMDSS and AMS(R)S
communications is of vital importance for the safety of life;

*b)* that the International Civil Aviation Organization (ICAO) has
adopted Standards and Recommended Practices (SARPs) addressing satellite
communications with aircraft in accordance with the Convention on
International Civil Aviation;

*c)* that all air traffic communications as defined in Annex 10 to the
Convention on International Civil Aviation fall within priority
categories 1 to 6 of Article **44**;

*d)* that Table 15-2 of Appendix **15** identifies the bands 1 530-1 544
MHz (space-to-Earth) and 1 626.5-1 645.5 MHz (Earth-to-space) for
distress and safety purposes in the maritime mobile-satellite service as
well as for routine non-safety purposes,

*e)* that the feasibility of prioritization, real-time pre-emptive
access and the mechanism to transfer spectrum between different
mobile-satellite systems that may or may not provide GMDSS and/or
AMS(R)S was studied and found to be not technically or economically
feasible without further development of satellite systems;

resolves

1 that, in frequency coordination of MSSs in the bands 1 525-1 559 MHz
and 1 626.5-1 660.5 MHz, administrations shall ensure that the spectrum
needed for distress, urgency and safety communications of GMDSS, as
elaborated in Articles **32** and **33**, in the bands where
No. **5.353A** applies, and for AMS(R)S communications within priority
categories 1 to 6 of Article **44** in the bands where No. **5.357A**
applies is accommodated;

2 that administrations shall ensure the use of the latest technical
advances, in order to achieve the most flexible and practical use of the
generic allocations;

3 that administrations shall ensure that MSS operators carrying
non‑safety-related traffic yield capacity, as and when necessary, to
accommodate the spectrum requirements for distress, urgency and safety
communication of GMDSS communications, as elaborated in Articles **32**
and **33**, and for AMS(R)S communications within priority categories 1
to 6 of Article **44**; this could be achieved in advance through the
coordination process in *resolves* 1, and, when necessary and where
feasible, consistent with the results of studies in *invites ITU-R*,
through other means;

invites ITU-R

*a)* to complete studies to determine the feasibility and practicality
of means, other than the coordination process in *resolves 1* or the
study in *recognizing (e)* to ensure adequate access to spectrum to
support GMDSS and AMS(R)S requirements as referenced in *resolves 3*
above while taking into account the latest technical advances in order
to maximize spectral efficiency;

*b)* to consider the results of ITU-R studies and inputs from concerned
organizations to evaluate the long term availability and access to
spectrum for aeronautical mobile-satellite (R) services with respect to
No. 5.357A and to recommend appropriate action on this subject, while
retaining unchanged the generic allocation for the mobile-satellite
service in the bands 1525 -- 1559 MHz and 1626.5- 1660.5 MHz;

invites

ICAO, the International Maritime Organization (IMO), the International
Air Transport Asso­ciation (IATA), administrations and other
organizations concerned to submit inputs to the ITU-R to document the
availability of aeronautical mobile-satellite (R) service in the bands
1545-1555 MHz and 1646.5-1656.5 MHz and to identify any instances where
the aeronautical mobile-satellite (R) service was not accommodated.