APT PRELIMINARY VIEWS ON
WRC-12 AGENDA ITEMS
A S I A PA C I F I C T E L E C O M M U N I T Y
F I R S T R E G I O N A L P R E PA R AT O R Y G R O U P ( R P G ) M E E T I N G F O R
W R C - 2 0 1 2 , B A N G KO K , 8 - 9 D EC E M B E R 2 0 0 9
Presented by
Sujan K. Saraswati
ICAO Asia and Pacific Office
on behalf of
APT Preparatory Group for WRC-12
(APG2012)
Contents
 APT Conference Preparatory Group for WRC-12
 Process of Developing APT Common Proposals
 APT Preliminary Views on WRC-12 Agenda Items of
interest to aviation
APT Conference Preparatory Group for WRC-12
Agenda: draft in WRC Res & final in Council Res
Informal Group
(Structure & Chairmanship)
Proposals
Proposals
Coordinated
common proposals
Member States
WRC
Final Acts
CPM Report
Director’s
Report
Conference
Secretariat
Radio
Regulations
(CS89)
(BR & GS)
The WRC Process
Source: ITU-BR
APT CONFERENCE PREPARATORY GROUP WRC-12
 Preparatory activities for WRC-12 were started in 2008
 1st Meeting was held from 06-08 March 2008, Bangkok, Thailand
 2nd Meeting was held from 22-26 June 2009, Hangzhou, China
 Future meetings scheduled for 2010 and 2011
 Chairman:
 Dr. Alan Jamieson (New Zealand)
 Vice Chairs:
 Mr. Kavouss Arasteh (Islamic Republic of Iran)
 Dr. Kyu-Jin Wee (Republic of Korea)
 Editorial Chair:
 Mr. John Lewis
APT Conference Preparatory Group for WRC-12
 APG Structure is same as CPM Chapter Structure
WP1:
• Maritime and Aeronautical Issues: 1.3, 1.4, 1.9 & 1.10
• Chair: Mr. Darrell Ninham (Australia)
WP2:
• Radiolocation and Amateur Issues: 1.14, 1.15, 1.21 & 1.23
• Chair: Prof. Ahmad Faizal Bin Mohd Zain (Malaysia)
WP3:
• Fixed, Mobile and Broadcasting Issues: 1.5, 1.8, 1.17, 1.20 & 1.22
• Chair: Dr. Hyansuk Seong (Republic of Korea)
WP4:
• Science Issues: 1.6, 1.11, 1.12, 1.16 & 1.24
• Chair: Mr. Zhou Xingguo (P. R. China)
WP5:
• Satellite Issues: 1.7, 1.13, 1.18, 1.25 & 7
• Chair: Mr. Muneo Abe (Japan)
WP6:
• Future Work Program and Other Issues: 1.7, 1.13, 1.18, 1.25 & 7
• Mr. Taghi Shafiee (Islamic Republic of Iran)
WRC-12 Agenda Items related to aviation
 Agenda items related to specific aviation issues
 1.3 UAS spectrum requirements
 1.4 AM(R)S allocations
 1.7 AMS(R)S in 1.5 & 1.6 GHz bands
 Agenda items in which aviation is a concerned party
 General issues: Agenda items 1.2, 4 and 8.2
 Cognitive radio and software defined radios: Agenda item 1.19
 Radiolocation service: Agenda items 1.14, 1.15 and 1.21
 Spectrum access by other services & compatibility: Agenda items
1.5, 1.9, 1.12, 1.22, 1.23 and 1.25
PROCESS OF DEVELOPING APT COMMON PROPOSALS
 In general, the APT organizes five APG Meetings in each
WRC preparatory cycle (currently 2008 – 2012)
 The APG meetings develop and update APT Preliminary
Views on WRC agenda items based on:


ITU-R studies that are available
Input contributions from Members
 A two stage procedure is followed for preparing and
approving APT Common Proposals (ACPs) for submission
to the WRC
PROCESS OF DEVELOPING APT COMMON PROPOSALS
 Stage One:
 APT Preliminary Views on each agenda item are prepared and updated at each APG meeting and at the 5th and final APG meeting
considered for adoption
 For each proposal, if consensus is reached at the 5th meeting, the
proposal becomes a preliminary APT Common Proposal (PACP)
 Stage Two:
 All APT Members are then requested to indicate if their country
name is to be included as a signatory for each PACP
 A PACP becomes ACP if it is
Supported by at least 25% of the APT Members (Administrations)
 And not opposed by the 50% of the number of Members who support it

APT PRELIMINARY VIEWS ON WRC-12 AGENDA ITEMS
 The current APT Preliminary Views on WRC-12 agenda
items were prepared at the 2nd Meeting of the APG held
from 22 – 26 June 2009 in Hangzhou, P R China
 The current APT views of most interest to aviation are
shown in the following slides in two sections

Section I: Agenda Items 1.3, 1.4 and 1.7

Section II: Agenda Items 1.2, 1.5, 1.9, 1.12, 1.14, 1.15, 1.19, 1.21,
1.22, 1.23, 1.25, 4 and 8.2
SECTION I: AGENDA ITEMS OF DIRECT INTEREST
 Agenda Items on aviation issues



1.3 Spectrum requirements for UAS
1.4 AM(R)S allocations in the 112 – 117.975 MHz, 960 – 1 164 MHz
and 5 000 – 5 030 MHz frequency bands
1.7 AMS(R)S spectrum availability and access in the 1 525 – 1 559
MHz and 1 626.5 – 1 660.5 MHz frequency bands
AGENDA ITEM 1.3
 “to consider spectrum requirements and possible regulatory actions,
including allocations, in order to support the safe operation of unmanned
aircraft systems (UAS), based on the results of ITU-R studies, in accordance
with Resolution 421”
 APT Preliminary Views:





The current studies being carried out by ITU-R in WP 5B are supported
Allocations to AM(R)S, AMS(R)S and/or ARNS, in order to satisfy spectrum needs for UAS
applications, are supported, preferably from existing aeronautical safety allocations
Compatibility with existing services, in particular ICAO standards based systems such as MLS,
needs to be ensured
Due to the safety nature of UAS, regulatory provisions associated with the allocation need to
be clear, unconditional and implementable in practice
AI 1.3 should be confined to safety communications and not payload
AGENDA ITEM 1.4
 “To consider, based on the results of ITU-R studies, any further regulatory
measures to facilitate introduction of new aeronautical mobile (R) service
(AM(R)S) systems in the bands 112 - 117.975 MHz, 960 - 1 164 MHz and
5 000 - 5 030 MHz in accordance with Resolutions 413 (Rev. WRC-07), 417
(WRC-07) and 420 (WRC-07)”
 APT Preliminary Views:

APT Members support compatibility studies and any further regulatory measures to facilitate
the introduction of future AM(R)S systems in the band 112-117.975 MHz. These compatibility
studies are between digital sound-broadcasting below 108 MHz and AM(R)S, in accordance
with Resolutions 413 (Rev.WRC-07) taking into account Recommendation ITU-R BS.1114
AGENDA ITEM 1.4
 APT Preliminary Views: (Continued)

In accordance with Resolution 417 (WRC-07), APT Members support compatibility studies and
any further regulatory measures in the band 960-1 164 MHz to facilitate the introduction of
future AM(R)S systems

With regards to Resolution 420 (WRC-07), APT Members are of the view that it should first be
studied to identify whether the spectrum requirements can be fulfilled in the band 5 091-5
150 MHz Before considering new allocation in the band 5000-5030 MHz, it is necessary to
demonstrate that AM(R)S would not create undue constraints on the Radio-Astronomy
Service and existing radiocommunication services including Radio-Navigation Satellite Service
AGENDA ITEM 1.7
 “to consider the results of ITU-R studies in accordance with Resolution 222
(Rev.WRC-07) in order to ensure long-term spectrum availability and access
to spectrum necessary to meet requirements for the aeronautical mobilesatellite (R) service, and to take appropriate action on this subject, while
retaining unchanged the generic allocation to the mobile-satellite service in
the bands 1 525-1 559 MHz and 1 626.5-1 660.5 MHz”
 APT Preliminary Views:


Further study to ensure the long-term access to required spectrum for AMS(R)S in 1.5/1.6 GHz
bands is needed taking into account of difficulty of giving priority to AMS(R)S in a practical
manner
Members support the studies being conducted by ITU-R WP4C which develop the
methodology for estimation of the aeronautical mobile satellite (R) service spectrum
requirements for global and seamless operation of civil aviation taking into account of existing
services
AGENDA ITEM 1.7
 APT Preliminary Views: (Continued)



Members support studies into appropriate regulatory provisions to ensure long-term
spectrum availability and access for AMS(R)S in the current, revised and/or eventual new
allocations. Also, depending upon decisions taken by WRC-11, to support consequential
regulatory changes that safeguard spectrum access for AMS(R)S
The 1.5/1.6 GHz (1 545-1 555 MHz and 1 646.5-1 656.5 MHz) band should remain the core
band for AMS(R)S, while retaining the existing R.R. No.5.357A. If the studies identified by Res.
222 (Rev. WRC-07) indicate that the long-term spectrum needs of AMS(R)S cannot be satisfied
without placing undue constraints on the existing systems operating in accordance with the
Radio Regulations, then to support additional allocations for AMS(R)S in other frequency
bands through appropriate regulatory provisions
Past experience had demonstrated that the implementation of the “priority referred to in the
Radio Regulations” does not work satisfactorily. Consequently the relevant regulatory text
needs to be improved or reinforced to better serve its objectives.
AGENDA ITEM 1.7
 APT Preliminary Views: (Continued)


Method to accommodate the requirements: Current status of AMS(R)S in the corresponding
provisions of the RR 5.357A having priority over other types of communications should be
preserved together with the necessary reinforcement of the AMS(R)S status in 1.5/1.6 GHz
(1 545-1 555 MHz and 1 646.5-1 656.5 MHz) band. Such reinforcement of the status of the
AMS(R)S could be achieved e.g. by a new WRC Resolution or major changes to Resolution 222
(Rev.WRC-07) clearly providing the ways and means on how the required priority could be
achieved in practice
Relation of Agenda Item 1.7 with other Agenda Items of WRC-12: Generally speaking, no link
should be established between Agenda Item 1.7 and Agenda Item 1.3. However, the only link
that may exist between these two agenda items is communication between the UAS and Air
Traffic Control Centre. Such link would have marginal impact on the spectrum estimation for
AMS(R)S. Any other link involving UAS such as Command and Control, Sense and Avoid should
be excluded. Similarly, any link between Agenda Item 1.7 and Agenda Item 1.25 should also be
avoided due to the fact that such link would be counter productive and adversely affects the
AMS(R)S in 1.5/1.6 GHz band
SECTION II: AGENDA ITEMS OF CONCERN
 Agenda items in which aviation has concerns of spectrum
access by other services, compatibility with other services
or protection from interference

1.5, 1.9, 1.14, 1.15, 1.21, 1.22, 1.23, 1.25
 Agenda items where the future interests of aviation need
to be promoted and taken into account

1.2, 1.12, 1.19, 4 and 8.2
AGENDA ITEM 1.2
 “taking into account the ITU-R studies carried out in accordance with Resolution
951 (Rev.WRC-07), to take appropriate action with a view to enhancing the
international regulatory framework”;
 APT Preliminary Views:

APT Members are of the view that regardless of options/methods, the provisions of Radio
Regulations should be utilized not only to protect existing services but also to facilitate the
introduction of current, emerging and future radio applications in a timely manner, taking into
account the rapid technology development and digital convergence trend

APT Members closely follow the studies which are being carried out by ITU-R and support actions to
improve the regulatory framework and recognize the importance of flexibility in allocating frequency
bands to services. However, the increased flexibility must be accompanied by ensuring compatibility
between services. The framework of flexibility referred to in this agenda item should contain
concepts and procedures for the enhancement of the Radio Regulations to meet the demands of
current, emerging and future requirements, while taking into account existing services and their
current and future usage to allow administrations to implement this flexibility in a timely manner
AGENDA ITEM 1.2
 APT Preliminary Views (Continued):


Some APT Members are of the view that the existing definitions of the fixed service, the
mobile service and the satellite services should be maintained, based on the idea that the
modification of the definitions of the services in the RR should not have an adverse effect on
the existing systems and services. However some administrations do not share that view
Some APT Members are of the view that the studies pursued under this agenda item should
be limited to deal with terrestrial services namely fixed and land-mobile services having
primary allocation in Article 5 of the RR below 5 GHz. More precisely, Space services should be
excluded from the studies, in particular:



No option to be pursued in which the existing or new MS allocations be considered in any FSS downlink
band or BSS band
No option to be pursued in which new MS allocations should be considered in any FSS uplink band
unless it can be fully demonstrated that this is not to the detriment of deployment of transmitting earth
stations in this band
No option to be pursued in which new MSS allocations should be considered in any FSS or BSS band, in
particular, those bands which are covered by a Regional or World Plans
AGENDA ITEM 1.5
 “to consider worldwide/regional harmonization of spectrum for electronic
news gathering (ENG), taking into account the results of ITU-R studies, in
accordance with Resolution 954 (WRC-07)”
 APT Preliminary Views:

Noting that studies already undertaken by the ITU-R indicate that
administrations/broadcasters could benefit from worldwide/regional harmonized band
planning used for ENG systems, APT Members support the harmonization of frequencies for
ENG and the related studies being undertaken by the ITU-R on this issue. APT Members also
propose that the ITU-R study should consider the inclusion of an analysis of the compatibility
between ENG and services currently using frequency ranges that may be applicable for
harmonised ENG frequency bands/tuning ranges.
AGENDA ITEM 1.5
 APT Preliminary Views: (Continued)

In this context APT Members suggest that the studies should take account of the following
principle: “ENG systems use the bands allocated to fixed and mobile services on a national
basis. Worldwide/regional harmonization of ENG spectrum should not constrain existing other
applications used in the bands”

Some frequency bands for ENG systems are described in the Recommendations ITU-R F.1777
and M.1824. Therefore, it may be desirable to seek potential frequency bands for
harmonization of ENG systems based on information in above ITU-R Recommendations
considering proposals from administrations
AGENDA ITEM 1.9
 “to revise frequencies and channeling arrangements of Appendix 17 to the
Radio Regulations, in accordance with Resolution 351 (Rev.WRC 07) in order
to implement new digital technologies for the maritime mobile service”
 APT Preliminary Views:

APT supports the revision of Appendix 17 to the Radio Regulations and in accordance with
Resolution 351 (Rev. WRC-07), to accommodate the implementation of new digital
technologies in the maritime mobile HF bands taking into account the following:
 All safety and distress aspects currently enforced including distress and safety frequencies
for GMDSS identified in Appendix 15 must be retained and protected
 commercial communications should be taken into account
 new channeling arrangement be preferably applied to new systems such as LRIT and eNavigation
 new system should be capable of co existing with current system
 any changes of Appendix 17 should be implemented with sufficient transitional period
 implementation phase should preferably preceded with test phase to identify and remove
harmful interferences
 continuous use of Morse communications should be allowed without claiming protection
AGENDA ITEM 1.12
 “to protect the primary services in the band 37-38 GHz from interference
resulting from aeronautical mobile service operations, taking into account
the results of ITU-R studies, in accordance with Resolution 754 (WRC-07)”
 APT Preliminary Views:

APT Members support the protection of primary services within the band 37–38 GHz from
interference resulting from aeronautical mobile service operations, taking into account the
result of the ITU-R studies, in accordance with Resolution 754 (WRC-07)
AGENDA ITEM 1.14
 “to consider requirements for new applications in the radiolocation service
and review allocations or regulatory provisions for implementation of the
radiolocation service in the range 30-300 MHz, in accordance with
Resolution 611 [COM6/14] (WRC-07)”
 APT Preliminary Views:


APT Members support consideration of a primary allocation to the radiolocation service in the
portion of the band 30-300 MHz for the implementation of new applications in the
radiolocation service, subject to results of ITU-R studies that ensure compatibility with existing
services allocated in the band and in accordance with Resolution 611 (WRC-07). APT
administrations believe that any possible allocation should be made once the sharing studies
indicate that the protection of the primary services to which the band is currently allocated is
ensured
Some APT Members do not support allocations to the radiolocation service in the bands used
by regional distress and safety applications of aeronautical or maritime services
AGENDA ITEM 1.14
 APT Preliminary Views: (Continued)


Some APT Members also have a view that, if a new allocation of radiolocation service in the
range 30-300 MHz in only one or two Regions is made on a Regional basis the allocation
should not cause harmful interference, as specified in No. 4.8 of the Radio Regulations. Such
possible allocation shall not put any constraints to the existing services and their future
development
There was no specific frequency band proposed by Members for a new radiolocation service,
however some Members do not support the frequency band of 154-156 MHz and 138-144
MHz to be allocated for the radiolocation service sharing on primary basis with the existing
services
AGENDA ITEM 1.15
 “To consider possible allocations in the range 3-50 MHz to the radiolocation
service for oceanographic radar applications, taking into account the results
of ITU-R studies, in accordance with Resolution 612 [COM6/15] (WRC-07)”
 APT Preliminary Views:

APT Members support possible allocations in the range 3-50MHz to the radiolocation service
for oceanographic radar applications, under the condition that sharing studies with other
services in ITU-R have concluded that the oceanographic radar applications cause no harmful
interference to existing services and in accordance with Resolution 612(WRC-07)

Some Members have a view that, if some part of the band 3-50MHz is considered to be
allocated to radiolocation services, compatibility with existing services in the band should be
ensured
AGENDA ITEM 1.19
 “to consider regulatory measures and their relevance, in order to enable the
introduction of software-defined radio and cognitive radio systems, based
on the results of ITU-R studies, in accordance with Resolution 956 (WRC-07)”
 APT Preliminary Views:


APT Members support studies which are being carried out by ITU-R and support development
and introduction of new technologies such as software-defined radio (SDR) and cognitive
radio systems (CRS) that have the potential to provide end-user and overall spectrum
management benefits. In this connection, a common definition and system concept on SDR
and CRS should be established within ITU-R and characteristics of SDR and CRS be clarified
APT Members are of the view that SDR and CRS are not radio services as listed in Article 1 of
the Radio Regulations. SDR and CRS are technologies that can be implemented in systems of
any radiocommunication services and any specific system using SDR or CRS technologies in an
allocated frequency band shall be operated in accordance with the provisions of Radio
Regulations. In this connection, any specific frequency band allocation for services using SDR
or CRS in the Radio Regulations does not seem to be necessary
AGENDA ITEM 1.19
 APT Preliminary Views: (Continued)



APT Members are of the view that the need or otherwise for any regulatory changes in the
Radio Regulations relating to the operation of SDR and CRS should be carefully studied in
order to avoid any unintended consequences relating to the necessary protection of
radiocommunication services currently contained in the Article 5 of the Radio Regulations
(either operating or to be operated in future)
Some APT Members are of the view that SDR and CRS may be operated under any radio
services. Consequently, the introduction of SDR and CRS in the frequency bands shared with
space services should not adversely affect these services by either imposing any constrains to
the operation of terrestrial or Space or impede their future development. For example where
implementing CRS for terrestrial services in certain frequency bands shared with space
services, such action in practice would in a de facto manner, prevent any future development
of the concerned space services in that/those shared band(s)
Some APT Members are of the view that frequencies or frequency bands (tuning range) for
specific applications can be harmonized regionally (e.g. by regional telecommunications
organizations) or on worldwide basis in ITU-R Recommendations. Consequently, one possible
approach would be to include the definition and other specificities of SDR and CRS in one or
more ITU-R Recommendation(s) and Report(s), as appropriate without any change to the
current provisions of the Radio Regulation.
AGENDA ITEM 1.21
 “To consider a primary allocation to the radiolocation service in the band
15.4-15.7 GHz, taking into account the results of ITU-R studies, in accordance
with Resolution 614 [COM6/19] (WRC-07)”
 APT Preliminary Views:

APT Members support consideration of a primary allocation to the radiolocation service in the
band 15.4-15.7 GHz on the condition that the results of ITU-R studies between radiolocation
service and existing primary services in the band 15.4-15.7 GHz together with radio
astronomy service in the adjacent band 15.35-15.40 GHz are shown to be compatible and in
accordance with Resolution 614 (WRC-07)
AGENDA ITEM 1.22
 “To examine impact of emissions from short-range devices on
radiocommunication services in accordance with Resolution 953(WRC-07)”;
 APT Preliminary Views:




APT members support the studies on the impact of the emissions from SRDs which are
currently undertaken by ITU-R WP 1A, to ensure that radiocommunication services are
protected from any harmful interference caused by SRD applications
APT members are of the view that the future development and impact of SRDs should be
considered within ITU-R studies
APT members are of the view that regulation of emissions by SRDs can be achieved via
national arrangement using, when available, relevant ITU-R Recommendations or regional
agreement and no decision seems to be needed to be taken at WRC-11 on SRDs under AI
1.22, in other words, the specific definitions, allocations or identifications of specific
harmonized bands and specific emission masks or excluding bands for SRDs in Radio
Regulations are not expected
APT members are of the view that taking into account the fact that many SRDs would circulate
across national boundaries, it may therefore be necessary to develop appropriate ITU-R
recommendations for harmonization of emissions (technical and operation characteristics) for
such applications
AGENDA ITEM 1.23
 “To consider an allocation of about 15 kHz in parts of the band 415-
526.5 kHz to the amateur service on a secondary basis, taking into account
the need to protect existing services”
 APT Preliminary Views:




Some Members are of the view that they support the allocation of about 15 kHz in parts of
the band 415-526.5 kHz on a secondary basis, taking into account the need to protect existing
services. It is recognized that more work is required to determine the optimum allocation(s)
and to ensure that appropriate protection is afforded to the existing services
Some Members are of the view that any allocation for the amateur service under this agenda
item, could increase the probability of harmful interference to the existing services in the
frequency range
Should the conference decide an allocation of about 15 kHz in parts of the band 415-526.5
kHz to the amateur service on a secondary basis, there should be sufficient technical and
operational support to ensure that such a new secondary allocation be in practice and actual
circumstances not cause harmful interference to nor claiming protection from the services to
which the frequency band is allocated
Some Members identify secondary allocation to the amateur service between 427 to 442 kHz
AGENDA ITEM 1.25
 “to consider possible additional allocations to the mobile-satellite service, in
accordance with Resolution 231 (WRC-07)”
 APT Preliminary Views:

APT Members support to conduct study in the Earth-to-space and space-to-Earth directions
with particular focus on the range 4 GHz to 16 GHz for any possible additional allocations to
MSS, subject to not place undue constraints on existing, planned and future
radiocommunication applications operated in the existing allocated bands. Prior to the
additional allocations to the MSS in the frequency range specified, a technical compatibility
between MSS and existing and planned services in the bands should be taken into account as
well, by which the existing and planned services shall have adequate protection from the
additional allocations to the MSS
AGENDA ITEM 1.25
 APT Preliminary Views: (Continued)

APT Members do not support the sharing study for additional MSS spectrum on the bands
which are already allocated for the Appendices 30, 30A and 30B since the spectrums are not
suitable for new frequency allocation to MSS.
Further more in Appendix 30A there are currently provisions in Articles 4, 6 and 7 together
with corresponding Annexes that establish relations between BSS downlink and its
corresponding FSS uplink, and FSS and terrestrial services as well as BSS in non-planned
bands. Any attempt in sharing MSS in this band with Appendix 30A implies that the Articles
and Annexes of Appendix 30A would need to be revised, recognizing that Appendix 30A is not
on the agenda of WRC-11. In view of that, such an attempt to initiate sharing studies in these
frequency bands which are allocated to feeder links for the BSS needs to be avoided
AGENDA ITEM 1.25
 APT Preliminary Views: (Continued)

Some APT Members are of the view that sharing spectrum between MSS and FSS are very
unlikely to be feasible, unless shown conclusively in ITU-R studies that existing FSS services
will not be adversely affected by this new identification and sharing criteria is not possible.
The bands which are extensively used by FSS are 3 400-4 200 MHz, 5 850-5 925 MHz, 5 925-6
725 MHz, 7.375-7.75 GHz, 8.025-8.4 GHz, 10.95-11.2GHz, 11.45-11.7GHz, 12.2-12.5 GHz,
12.5-12.75 GHz, 13.75-14.5 GHz. To certain extent, the sharing spectrum on bands 5 850-6
725 MHz, which is heavily used for up link of the 3.4 -4.2 GHz, should be excluded.
Further more, the operation of MSS in the FSS band, as concluded in the last WP4C meeting,
stated as is “not feasible” or “unlikely to be feasible”. The conclusion is in line with the result
of extensive studies saying that FSS and traditional MSS are fundamentally incompatible to
each other, and with that view any additional allocations to MSS using earth station antennas
with directivity lower than that of FSS earth station antennas in the FSS band should not be
considered.
AGENDA ITEM 1.25
 APT Preliminary Views: (Continued)

APT Members are of the view that for frequency band 14.5-14.8 GHz should not be
considered in the sharing studies for MSS under Agenda item 1.25.
Moreover, it has been noted that in the statement appearing against all frequency bands
subject to Appendices 30, 30A, and 30B Plans did indicating that “these bands should be
regarded as being “not feasible” or “unlikely to be feasible” for operation of MSS systems
envisaged under WRC-11 Agenda item 1.25” does not appear against the frequency band
14.5-14.8 GHz, which is an integral part of the Appendix 30A feeder link Plan for Regions 1 and
3. The WRC-2000, in revising the Appendix 30A Plan, due to
a) the high rainfall attenuation at 17 GHz in some African and Asia-Pacific countries, and
b) the congestion at that frequency band,
frequency assignments of many African, Arab, and Asia-Pacific countries were accommodated
in the band 14.5-14.8 GHz. Although this frequency band has not been used for European
countries in the Appendix 30A Plan, it is used extensively for many African, Arab, and AsiaPacific countries.
AGENDA ITEM 1.25
 APT Preliminary Views: (Continued)


Certain APT Members suggest that studies of possible bands for new allocations to the
mobile-satellite service, with particular focus on the range 4 GHz to 16 GHz, including the
sharing studies above 16GHz should not explicitly be excluded
Some APT Members suggest that ITU-R WP 4C should attempt a significant reduction in the
number of proposed candidate bands to be studied, in order to focus efforts and reduce the
workload of administrations concerned with this Agenda item
AGENDA ITEM 4
 “in accordance with Resolution 95 (Rev.WRC-07), to review the Resolutions
and Recommendations of previous conferences with a view to their possible
revision, replacement or abrogation”;
 APT Preliminary Views:

Since a number of the studies requested by Resolutions and Recommendations of the
previous conferences are now under consideration at the relevant groups in the ITU-R, APT
Members are encouraged to participate in these studies as well as to use the concepts and
processes in Resolution 95 (Rev.WRC-07) for review of Resolutions and Recommendations of
the previous conferences and development of their proposals to future APG meetings.
AGENDA ITEM 8.2
 “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, taking into
account Resolution 806 (Rev.WRC-07)”.
 APT Preliminary Views:


Work on the identification of potential future agenda items is yet to be started by the
APG2012.
This work is expected to commence at the APG2012-4 meeting scheduled for late 2010.
SCHEDULE OF THE NEXT APG MEETINGS
 The 3rd Meeting of the APG will be held from 08 - 12
March 2010 in [Bangkok, Thailand]
 The 4th Meeting of the APG will be held in Q4 of 2010
http://www.apt.int