RADIOCOMMUNICATION BUREAU

1
RADIOCOMMUNICATION BUREAU

• THE FIXED-SATELLITE SERVICE PLAN(Appendix S30B)

Yvon Henri yvon.henri_at_itu.intRadiocommunication
BureauITU
2
Appendix S30B FSS PLAN

• 6 / 4 GHz
• (300 MHz)
• 6725 - 7025 MHz (up)
• 4500 - 4800 MHz (down)

13 / 10-11 GHz (500 MHz) 12.75 - 13.25 GHz
(up) 10.70 - 10.95 GHz (down) 11.20 - 11.45
GHz (down)
3
TYPES OF SYSTEMS

• The FSS Plan contains two types of systems
• PART A systems
• National Allotments
• PART B systems
• Existing Systems
• Two other types of systems can be implemented
• Subregional Systems
• Additional Uses

4
ALLOTMENT

• Nominal orbital position
• Bandwidth of 800MHz (uplink and downlink)
• Service area for national coverage
• Generalized parameters
• Predetermined arc (PDA)

5
EXISTING SYSTEM

• Recorded in the MIFR before the adoption of the
  Plan,or
• Coordination procedure has been initiated before
  the adoption of the Plan, or
• Advance publication information was received by
  the BR before 8 August 1985

6
SUBREGIONAL SYSTEM

• Satellite system created by agreement among
  neighbouring countries
• Intended to provide domestic or subregional
  services within the geographical areas of the
  countries concerned

7
ADDITIONAL USE

• Allowed in case of a requirement whose
  characteristics differ from those used in Part A
  of the Plan
• Such requirement can be met only if
• the administration has already converted all
  or part of its allotment into an assignment, or
• the requirement cannot be met by the conversion
  of the allotment into an assignment

8
LIST OF ASSIGNMENTS

• Assignments derived from allotments in Part A
• Assignments relating to existing systems in Part
  B
• Assignments resulting from subregional systems
• Assignments relating to additional uses

9
TECHNICAL CRITERIA

• C/N ratio of 16 dB
• Aggregate C/I ratio of 26 dB
• Single entry C/I ratio of 30 dB

10
PREDETERMINED ARC (PDA) (1)

• The PDA is a segment of the GSO about a nominal
  orbital position, associated to each satellite
  system.
• The width of the PDA is reduced as the stage of
  development of the system progresses
• 10 degree Pre-design stage
• 5 degree Design stage
• 0 degree Operational Stage

11
PREDETERMINED ARC (PDA) (2)

• An administration is not considered as affected
  if its
• nominal orbital position is moved within the
• corresponding PDA while keeping interference
  within the accepted levels.

12
PREDETERMINED ARC (PDA) (3)

• The PDA concept may be applied only
• to provide an allotment to a new Member State
• when converting an allotment into an assignment
• to accommodate a subregional system
• to resolve incompatibilities with existing
  systems (except for the implementation of
  additional uses)
• to resolve incompatibilities with assignments in
  the List (except for the implementation of
  additional uses)

13
GENERALIZED PARAMETERS (1)

• A C
• Up Down link interference-producing capability
  expressed by the respective off-axis e.i.r.p.
  density
• B D
• Up Down link interference sensitivity expressed
  by the respective off-axis receiver sensitivity
  to interfering e.i.r.p. density

14
GENERALIZED PARAMETERS (2)

• If the calculated A, B, C D values are less
  than or equal to those in the Plan, the
  implementation of the allotment is in conformity
  with the Plan
• Allotments can also be implemented with A or C
  values greater than that in the Plan to the
  extent that compatibility with other systems is
  achieved
• Allotments can also be implemented with higher
  values of B or D, which implies acceptance of
  higher values of interference

15
IMPLEMENTATION OF ALLOTMENTS (1)

• Implementation of allotments of Part A, i.e.
  conversion of allotments into assignments, is
  straightforward if
• they have the same or better characteristics than
  those in the Plan (conformity with Part A)
• they comply with the macro segmentation concept
• they are compatible with Part B

16
IMPLEMENTATION OF ALLOTMENTS (2)

• The conditions for conformity with Part A are
• the service area is not greater than that in Part
  A
• the calculated values of the A C parameters are
  not greater than those in the Plan
• the orbital position corresponds to the nominal
  orbital position in the Plan

17
IMPLEMENTATION OF ALLOTMENTS (3)

• Proposed assignments not in conformity with Part
  A of the Plan shall be compatible with
• systems in Part A
• systems in Part B
• assignments in the List
• proposed assignments previously received by the BR

18
IMPLEMENTATION OF EXISTING SYSTEMS (1)

• To be recorded in the List, the existing systems
  contained in Part B shall be compatible with
• systems in Part A
• systems in Part B
• assignments in the List
• proposed assignments previously received by the BR

19
IMPLEMENTATION OF EXISTING SYSTEMS (2)

• Only existing systems having characteristics
  different from those in Part B and which were
  received by the BR after 29 August 1988 need to
  apply the procedures
• Existing systems in Part B expire after 20 years
  from the entry into force of Appendix S30B (16
  March 1990)

20
IMPLEMENTATION OF SUBREGIONAL SYSTEMS (1)

• All or part of the national allotments used by
  the subregional system shall be suspended for the
  life period of the subregional system unless it
  does not affect allotments or assignments

21
IMPLEMENTATION OF SUBREGIONAL SYSTEMS (2)

• To be implemented, the subregional system shall
  be compatible with
• systems in Part A
• systems in Part B
• assignments in the List
• proposed assignments previously received by the BR

22
IMPLEMENTATION OF ADDITIONAL USES (1)

• The procedures for additional uses may be applied
  provided that the proposed assignments have a
  maximum period of validity of 15 years

23
IMPLEMENTATION OF ADDITIONAL USES (2)

• To be implemented, the systems applying the
  procedures for additional use shall be compatible
  with
• systems in Part A
• systems in Part B
• assignments in the List
• proposed assignments previously received by the BR

24
NEW ALLOTMENT FOR A NEW MEMBER STATE

• A new Member State can obtain a national
  allotment in Part A of the Plan. Required
  information
• geographical coordinates of 10 test points (max.)
• height above sea and rain zone of each test point
• any special requirement, other than a fixed
  orbital position

25
NOTIFICATION OF ASSIGNMENTS

• Any assignment for which the relevant procedure
  of implementation has been successfully applied
  shall be notified in accordance with Article S11
  of the RR
• A PDA of zero degree (operational stage) shall be
  associated with this assignment

26
OTHER RELATED ISSUES

• Changes adopted due to WRC-2000 decisions
• use of the Appendix S4 (WRC-2000) of the RR in
  lieu of Annex 2 to Appendix S30B
• Rules of Procedure
• established by the RRB to facilitate the tasks of
  administrations and the BR