Results of WP8F Kyoto Meeting WGSPECSWGSharingDGFSS

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Results of WP8F Kyoto MeetingWG-SPEC/SWG-Sharing/
DG-FSS
22nd WP8F meeting (Kyoto, Japan)
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Overview of Discussion in DG-FSS/FS

• Update of the working document towards a PDN
  Report on sharing studies between IMT-Advanced
  and FSS in the 3,400-4,200 and 4,500-4,800 MHz
  was conducted almost every day during WP8F Kyoto
  meeting.
• Many controversial issues were debated and
  multiple case studies were included from two
  camps, i.e., one is interested in the
  introduction of IMT (F, KOR, J, ) and the other
  is interested in the protection of FSS (US, RUS,
  CAN, LUX, BRA, Intelsat, Asiasat, Inmarsat, ).
• Finally, in WP8F Kyoto meeting, the working
  document was upgraded to DN Report whose title
  isSHARING STUDIES BETWEEN IMT ADVANCED SYSTEMS
  AND GEOSTATIONARY SATELLITE NETWORKS IN THE FIXED
  SATELLITE SERVICE IN THE 3,400-4,200 AND
  4,500-4,800 MHz FREQUENCY BANDS.
• In SG8 meeting in June, the above DN Report was
  approved as a New ITU-R Report (Contents of this
  Report is summarized in the next slide).

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Covered Area in Sharing Study between
IMT-Advanced and FSS in ITU-R Report

• Regulatory information.
• Frequency usage by satellite services in these
  bands, provided on a global and regional basis.
• FSS Space and Earth Station deployments.
• Considerations on potential identification of the
  3,400-4,200 MHz and 4,500-4,800 MHz bands for
  IMT-Advanced.
• Parameters of the systems considered in this
  report.
• Sharing studies (methodologies and results)
  between the two services from two aspects
• Interferences from IMT-Advanced transmitters to
  receiving FSS earth stations (in-band and
  adjacent band, and overdrive of the FSS
  receivers).
• Interferences from transmitting FSS space
  stations to IMT-Advanced receivers.
• Results from one measurement study on
  interference from IMT-Advanced transmitter into
  one TVRO earth station.
• Mitigation techniques and spectrum management
  techniques to improve the sharing possibilities.
• Sensitivity analysis with respect to certain
  parameters to show the effect of their variation
  on the sharing situation between both systems.