Study Group 8 Seminar

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Study Group 8 Seminar on Tomorrows Technological
Innovations Related to WRC-07 Session 3
Working Party 8D Introduction Overview of
Activities in Working Party 8D Trend of New
Technology Development in Mobile Satellite
Service (MSS) and Radionavigation Satellite
Service (RNSS) 9 September 2004 Takeshi
Mizuike (KDDI Corporation, Japan) Chairman, WP 8D
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ITU-R Activities To Support Development of MSS
and RNSS

• New technology development
• Nongeostationary satellites
• CDMA
• Advanced GSO satellites (Deployable antenna)
• User needs for new applications
• Portable and handheld terminals
• IP and high-speed data transmission

• Requirements for new spectrum allocations
• Criteria for frequency sharing and coordination
• Technical and operational characteristics

• Development of Recommendations
• Studies for CPM preparation
• Decisions by WRC

Contribution of WP 8D in the areas of MSS and
RNSS
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Technical and Operational Properties of MSS and
RNSS

• Global coverage
• Useful for maritime and aeronautical
  applications
• Frequency sharing with other Services
• System development cost

Development of New Applications

• Voice, Facsimile, Telex
• ISDN, High Speed Data (64kbps)
• IP and broadband applications

Maritime MSS Ship-borne ES
Aeronautical MSS Aeronautical ES
Land MSS Portable ES Handheld terminal
Distress and Safety Services

• GMDSS
• AMS(R)S

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Trend of Technology Development in MSS
GSO MSS in bands 1.5/1.6GHz, 2.5/2.6GHz MMSS ?
AMSS LMSS Generic Allocation (WRC-97)
NGSO MSS Below 1GHz (LEO) for data
1-3GHz (LEO MEO) for voice and data
Use of Nongeostationary satellites
High performance GSO MSS
Advanced GSO In 1.5/1.6GHz band Handheld MES
for voice Portable MES for high speed data
GSO in 14GHz band Secondary allocation for MSS
(E-to-s) Including AMSS (WRC-03)
Broadband (IP) applications
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New Technology Development of MSS

• Non-geostationary satellites
• Small transmission delay and propagation loss
• Global coverage
• Complicated system control (Satellite hand-over)
• LEO and MEO in 1-3GHz band (Mobile phone by
  satellite)
• Use of TDMA and CDMA
• Frequency allocation for Service and Feeder
  Links
• (WRC-92, WRC-95, WRC-97)
• Frequency sharing studies by WP 8D
• LEO below 1GHz (Data applications)
• Frequency sharing with terrestrial services such
  as MS (DCAAS)
• Studies for additional allocation (Res. 214)
  No allocation (WRC-03)
• Feeder link in 1.4GHz band for NGSO MSS below
  1GHz
• Secondary allocation (WRC-03)
• Compatibility studies (Res. 745) for WRC-07
  Agenda item 1.17

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New Technology Development of MSS

• Advanced GSO MSS satellites
• Large deployable antenna
• Beam forming and Multiple spot beams
• High e.i.r.p. and G/T
• Hand-held terminal (Mobile phone by satellite)
• High speed data applications by portable
  terminal
• Coverage for hot-spot (Global coverage by NGSO
  satellites)
• Needs for more spectrum allocation
• Additional allocation 7MHz in 1.5/1.6GHz bands
  (WRC-03)
• Sharing studies with other services
• Agenda item 1.7 (Res. 744) (WRC-07)

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New Technology Development of MSS

• Broadband applications in MSS
• IP applications (Internet access from
  everywhere)
• Broadband applications Requirement for a wider
  spectrum range
• 14.0-14.5GHz band Secondary allocation for MSS
  (E-to-s)
• including AMSS (WRC-03)
• Modernization of civil aviation telecommunication
  systems
• Study of current satellite frequency allocations
• Agenda item 1.6 (Res. 415) (WRC-07)
• Technical Characteristics of MES
• GMPCS MoU
• NGSO MSS MES Recommendation ITU-R M.1343
• GSO MSS MES Recommendation ITU-R M.1480
• Compatibility with other services in adjacent
  frequency bands

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IMT-2000 Satellite Component

• Radio Interface Rec. ITU-R M.1457 (RA-2000)
  and its Revisions
• Satellite component Responsibility of WP 8D
• in close coordination with WP 8F
• Initial spectrum allocation in 2GHz band
• Additional frequency identification by WRC-2000
• Agenda item 1.9 (WRC-07) Studies underway at
  JTG6-8-9
• Sharing and adjacent band compatibility in
  2.5GHz band
• between the terrestrial and satellite
  components of IMT-2000
• Studies by JCG8F-8D Draft new Report
• New applications Broadcast and Multicast by
  satellite

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New Generation Systems of RNSS

• Currently operating RNSS systems
• 1215-1260 MHz and 1559-1610 MHz bands
• Use of NGSO satellites
• Global positioning capability
• One of the most suitable applications of
  satellites
• (No other means for precise positioning and
  global coverage)
• Needs for new spectrum allocations for the next
  generation systems
• Additional allocations (WRC-2000)
• Studies for sharing with other services and
  system coordination
• Agenda item 1.15 (WRC-03)

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Current Activities of WP 8D

• Studies on 20 Questions of ITU-R
• Responsible Group for WRC-07 Agenda items
• Agenda item 1.6 (Resolution 415)
• Agenda item 1.7 (Resolution 744)
• Agenda item 1.17 (Resolution 745)
• Sub-working group structure
• SWG 8D1 MSS system concepts, Technical
  characteristics,
• Performance objective
• SWG 8D2 IMT-2000 satellite component,
  Sharing within MSS
• SWG 8D3 Sharing with other services
• (FS, MS, BS, space science services)
• SWG 8D4 Radionavigation Satellite Service,
  Feeder link

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Study Group 8 Seminar Program of Session 3 for
Working Party 8D 3.1 Introduction by WP 8D
Chairman Mr. Takeshi Mizuike (KDDI Corporation,
Japan) 3.2 Overview of new technology trends in
the mobile satellite service Mr. Marcus Vilaca
(Inmarsat, UK) 3.3 Satellite digital multimedia
broadcast Mr. Laurent Combelles (Alcatel,
France) 3.4 Satellite systems supporting
modernization of civil aviation
telecommunication systems Mr. David Weinreich
(Boeing, USA) Questions and Answers