Kumar Singarajah 1

1
Preparation of WRC-2003

• Consolidation of the Regulatory Provisions for
• Non-GSO Satellite Systems

2
Background

• Recent WRCs (WRC-95, WRC-97, WRC-2000) developed
  various regulatory and technical provisions for
  application to non-GSO FSS and BSS systems in
  certain frequency bands (above 10 GHz)
• gt agenda items 1.19 and item 1.29
• WRC-2000 also proposed to consider relevant
  aspects of Highly Elliptical Orbit (HEO) based
  non-GSO systems at WRC-03
• gt agenda item 1.37

3
Agenda Item 1.19 (1)

• To consider regulatory provisions to avoid
  misapplication of the non-GSO FSS single-entry
  limits in Article S22 based on the results of
  ITU-R studies carried out in accordance with
  Resolution 135 (WRC-2000).

4
Agenda Item 1.19 - Background

• Following European proposals, WRC-97 established
  power limits on non-geostationary satellite FSS
  systems in 7 GHz of spectrum
• To provide clear protection to geostationary
  satellite systems
• To provide a clear regulatory framework for
  non-GSO systems by quantifying No. S22.2
• WRC-2000 reviewed the levels of these limits,
  confirmed the approach taken, with
• Validation limits (to be met on each point of the
  Earth, for any direction towards the GSO,
  verified by the ITU )
• Operational limits (to be met into any
  operational GSO earth station antenna, not
  verified by the ITU, but committed to by the
  non-GSO administration)

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Agenda Item 1.19 (2)

• Possible need to avoid misapplication of the
  regulatory provisions by splitting/combining
  non-GSO systems
• ITU-R studies have shown that this is not a new
  situation, hence, no specific provision is
  required. The issue raised by Resolution 135
  (WRC-2000) is not new or specific to certain
  non-GSO FSS systems. No difficulties have been
  experienced so far with similar limits which
  could be similarly misapplied. 
• Europe supports the limits included in Tables
  22-1A, 22-1B, 22-1C, 22-1D, 22-2 and 22-3 of
  Article 22, and considers that no further action
  is necessary on this issue.
• Europe proposes to suppress Resolution 135 at
  WRC-03.

6
Agenda Item 1.29 (1)

• To consider the results of studies related to
  Resolutions 136 (WRC-2000) and 78 (WRC-2000)
  dealing with sharing between non-GSO and GSO
  systems.

7
Agenda Item 1.29 (2)

• Resolution 78 (WRC-2000) - Development of
  procedures in case the operational limits are
  exceeded.
• ITU-R studies current or updated procedure
  under Article S15 (Procedure in case of harmful
  interference)
• Various ITU-R Recommendations developed for this
  purpose.
• Europe preliminary position is that no further
  action is needed at WRC-03 and Resolution 78 can
  be suppressed at WRC-03.

8
Agenda Item 1.29 (3)

• Resolution 136 (WRC-2000) Achieving balanced
  sharing arrangements between GSO and non-GSO FSS
  systems at 37.5-50.2 GHz.
• ITU-R studies ongoing.
• European view is to preserve long-term access to
  this spectrum by GSO networks
• European preliminary position update Resolution
  136 at WRC-03 to enable further studies and to
  address this issue at future WRC, based on
  outcome of studies.

9
Agenda Item 1.37 (1)

• To consider the regulatory and technical
  provisions for satellite networks using highly
  elliptical orbits

10
Agenda Item 1.37 (2)

• Very wide scope, potentially covers all satellite
  services and all bands allocated to them.
• European preliminary position
• HEOs should continue to be considered as having
  the same regulatory standing as other non-GSO
  systems
• Various bands that may be used by HEO systems
  should be covered, with particular attention to
  the protection of relevant terrestrial services

11
Agenda Item 1.37 (3)

• European preliminary position in various bands in
  relation to HEO / Terrestrial sharing
• In bands shared between HEO FSS and FS,
  3.4-4.2 GHz, 10.7-12.75 GHz and 17.7-19.7 GHz,
  support the modification of Article 21 to
  include, on a provisional basis, new pfd limits
  to be applied to HEO satellites and to be further
  confirmed by WRC-07.
• For the 37.5-42.5 GHz, propose further study if
  the Article 21 pfd limits for NGSO systems (see
  the ECP on agenda item 1.32) could also be
  applied to HEO satellites.
• In some BSS and BSS(S) bands below 3 GHz, further
  consider appropriate means to protect
  terrestrial services required before specific
  ECPs for WRC-03 developed.

12
Agenda Item 1.37 (4)

• European preliminary position in various bands in
  relation to GSO / non-GSO sharing
• MSS below 3 GHz NOC
• BSS below 1 GHz Apply S9.12/12A/13 SUP S22.2
• BSS (sound) between 1 and 3 GHz idem
• BSS (other than sound) and FSS between 1 and 3
  GHz S22.2, quantified
• Bands above 3.4 GHz.
• Focus on bands where S9.11A does not apply and no
  limits are included in Article S22, and
• quantify S22.2, based on further studies and
  consideration at WRC-07.