report of the - ITU

ASIA-PACIFIC TELECOMMUNITY
PRELIMINARY COMMON VIEWS/PROPOSALS FOR WRC-2000


Introduction

This document provides a summary of the preliminary common views of the
Asia-Pacific Telecommunity (APT) Members that were developed during the
meeting of the APT Preparatory Group for WRC-2000 held in the Gold Coast,
Australia, 3-8 October 1999.

These preliminary views are subject to review at the final APT Conference
Preparatory Group Meeting (APG2000-4) to be held in Japan in 2000 before
WRC-2000.


Agenda Item 1.1 Review of Footnotes

MOD S5.77



Different category of service: in Australia, China, the French Overseas
Territories of Region 3, India, Indonesia, (until [1 January 2005]), the
Islamic Republic of Iran, Japan, Pakistan, Papua New Guinea and Sri Lanka,
the allocation of the band 415 - 495 kHz to the aeronautical
radionavigation service is on a primary basis. Administrations in these
countries shall take all practical steps necessary to ensure that
aeronautical radionavigation stations in the band 435 - 495 kHz do not
cause interference to reception by coast stations of ship stations
transmitting on frequencies designated for ship stations on a worldwide
basis (See No. S52.39).


Reasons: In order to safeguard existing services, it is imperative that
the relative status of assignments in the band 415 - 495 kHz do not change
until [1 January 2005]. Frequency use in the Indonesia is planned to
continue on the basis of the protection afforded by the footnote S5.77A.


MOD S5.262



Additional allocation: in Saudi Arabia, Armenia, Azerbaijan, Bahrain,
Belarus, Bosnia and Herzegovina, Bulgaria, Colombia, Costa Rica, Cuba,
Egypt, the United Arab Emirates, Ecuador, Estonia, Georgia, Hungary,
Indonesia, the Islamic Republic of Iran, Iraq, Israel, Jordan, Kazakstan,
Kuwait, Liberia, Malaysia, Moldova, Nigeria, Uzbekistan, Pakistan, the
Philippines, Qatar, Syria, Kyrgyzstan, Slovakia, Romania, Russia,
Singapore, Somalia, Sri Lanka, Tajikistan, Turkmenistan, Ukraine and
Yugoslavia, the band 400.05 - 401 MHz is also allocated to the fixed and
mobile services on a primary basis.


Reasons: No further requirement for such use in the Indonesia and Sri
Lanka.


MOD S5.355

Additional allocation: in Bahrain, Bangladesh, the Congo, Egypt, the United
Arab Emirates, Eritrea, Ethiopia, the Islamic Republic of Iran, Iraq,
Israel, Jordan, Kuwait, Lebanon, Malta Morrocco, Oman, Qatar, Syria,
Somalia, Sudan, Sri Lanka, Chad, Togo, Yemen and Zambia, the band 1540 -
1645.5 MHz and 1645.5-1660 MHz is also allocated to the fixed service on a
secondary basis.


Reasons: No further requirement for such use in the Sri Lanka.


MOD S5.432



Different category of service: in Indonesia, Japan and Pakistan, the
allocation of the band 3 400 - 3 500 MHz to the mobile, except aeronautical
mobile, service is on a primary basis (see No. S5.33).


Reasons: No further requirement for such use in the Indonesia.


Agenda Item 1.2 Review of Appendix S3

APT administrations fully support all the conclusions and recommendations
in section 7.1 of the Draft CPM-99 Report. APT administrations believe the
subject of radar spurious emissions is within the competence of WRC-2000
and should be considered at the Conference.


Agenda Item 1.3 Review of Appendix S7

The APT Members support the revision of Appendix S7 based on the material
in the new Recommendation SM.[XXX] being developed by TG 1/6.
Consideration should be given to a procedure to provide a transition from
the existing Appendix S7 to the revised Appendix S7. Some APT members
support Method 3 and another prefers Method 5. Other members have not
expressed a view regarding a preferred Method.


Agenda Item 1.4 High Density Fixed Services Above 30 GHz and the
Fixed-Satellite Service in the Band 40.5 to 42.5 GHz

HDFS - Resolution 126 (WRC-97)

Concerning the application of High Density Fixed System (HDFS) in the band
31.8-33.4 GHz and with regard to the report of Special Committee on the
sharing between the FS and RNS in the band 31.8-33.4 GHz, ISS in the band
32-33 GHz and SRS in the band 31.8-32.3 GHz, the APT supports such an
application, taking into account the deletion of Resolution 126 and RR
S5.547A and modification to Article S21 where appropriate to meet the pfd
limit of -125 dB (W/m2/MHz) at all arrival angles for SRS.

HDFS - Resolution 133 (WRC-97)
The frequency band 37 - 40 GHz, being suitable for High Density Fixed
Service (HDFS), should be made available for high-density applications.

Sharing between the FSS and other services with allocations in the band
40.5 - 42.5 GHz - Resolution 129 (WRC-97)

With regard to the band 40.5 - 42.5 GHz, sharing criteria for the
protection of terrestrial services from GSO FSS networks needs further
study, as the band has already been utilised by the systems of FS and MS.


Agenda Item 1.5 High Altitude Platform Stations

The preliminary APT common view is essentially as set out in Document
APG2000-3/34 (Report of the Chairman of WP 4), namely that the current text
in the draft CPM report is generally a satisfactory reflection of the
status of issues related to HAPS, however the text should be updated to
reflect the results of the latest technical studies and particularly to
reflect the interest in finding additional spectrum for HAPS in Region 3
below 47 GHz as a means to reduce the potential impact on HAPS from rain
attenuation.

It is noted that in relation to Resolution 122 APT members support the
sharing studies requested under Resolution 122 for sharing HAPS with other
co-primary services and that progress has been made with such studies in
ITU-R. These have led to the development of the Draft New Recommendations
noted on the CPM report which includes 2 DNRs relating to the
characteristics of HAPS in the 47 GHz band and considerations of
propagation loss, as well as identifying that it is technically feasible to
avoid interference to RA. There is agreement that the regulatory
provisions of Resolution 122 (WRC-97) should be extended until the next WRC
in 2002/3.

Additionally it was noted that the Radio Regulations currently limit HAPS
to the bands identified in footnote S5.552A and there is a preliminary view
that additional spectrum identified as suitable for HAPS below 47 GHz could
specifically be allocated for HAPS on a domestic or regional basis and that
this issue should be studied as a matter of urgency.

It is noted that a spectrum bandwidth equivalent to that already designated
for HAPS at 47 - 48 GHz band is needed for the fixed service in the
frequency range 18 - 32 GHz already identified in the report of the CPM.
For example, in Region 3 additional allocations are necessary to enable
HAPS to utilize the pair bands of 19 GHz and 29 GHz (reverse band
operation), or the pair bands of one of the aforementioned bands and the FS
band in the range of 18 - 32 GHz.

To accomplish the above, APT agreed that feasibility of designating
appropriate spectrum in the 18 - 32 GHz band should be studied as a matter
of urgency. In addition it was agreed that the Radio Regulations should be
revised so that in geographic areas where the frequency bands are only
allocated as primary basis for [terrestrial radio communication (Fixed)],
HAPS may be able to be introduced without the need to coordinate with other
administrations.

In order to accelerate studies with the objective of determining the
feasibility of designating additional spectrum for HAPS below 47 GHz and
specifically in the band 18 - 32 GHz already identified in the CPM report,
APT proposes to modify Resolution 122 (WRC-97) as per ANNEX A.


ANNEX A

a draft of modification to RESOLUTION 122 (WRC-200097)

Use of the bands 47.2-47.5 GHz /and 47.9-48.2 GHz and additional potential
bands below 47.2 GHz by high altitude platform stations in the fixed
service and by other services


The World Radiocommunication Conference ([Istanbul], 20001997),

considering


a) that the band 47.2-50.2 GHz is allocated to the fixed, mobile and fixed-
satellite services on a co-primary basis;

b) that WRC-1997 has made provision for operation of high altitude
platform stations, also known as stratospheric repeaters, within the
fixed service in the bands 47.2-47.5 GHz and 47.9-48.2 GHz;

c) that ITU has among its purposes "to promote the extension of the
benefit of the new telecommunication technologies to all the world's
inhabitants" (No. 6 of the Constitution of the ITU (Geneva, 1992));

d) that systems based on new technologies using high altitude platforms
will be able to provide high-capacity, competitive services to urban and
rural areas;

e) that high altitude platform systems are in an advanced stage of
development and some countries have notified such systems to ITU;

f) that the Radio Regulations Board issued a provisional rule of procedure
concerning notification periods in No. S11.24/1228 in February 1997;

g) that in spite of the urgency attached to the development of such
systems, technical, sharing and regulatory issues should be studied in
order to achieve the most efficient use of the spectrum available for
these systems;

h) that technical studies are required in order to ascertain the extent to
which sharing of the bands 47.2-47.5 GHz and 47.9-48.2 GHz is feasible
between systems using high altitude platforms in the fixed service and
systems in the fixed, fixed-satellite and mobile services, and to
ascertain the requirements to protect radio astronomy services in
adjacent bands from spurious emissions;

i) that the radio astronomy service has primary allocations in the bands
42.5-43.5 GHz and 48.94-49.04 GHz;

j) j) that ITU-R studies are already under way on the preferred
characteristics of systems using high