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SUIRG WiMax Activities

SUIRG WiMax Activities. 23 May 2007 Washington, DC. Agenda SUIRG Background SUIRG Programs SUIRG’s WiMax Activities SUIRG’s Future. SUIRG Background. SUIRG’s Mission

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SUIRG WiMax Activities

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  1. SUIRG WiMax Activities 23 May 2007 Washington, DC

  2. Agenda • SUIRG Background • SUIRG Programs • SUIRG’s WiMax Activities • SUIRG’s Future

  3. SUIRG Background • SUIRG’s Mission • SUIRG is a not-for-profit international assembly of parties, within which members work towards the reduction of radio frequency interference (RFI) through pro-active programs and education.

  4. Who Belongs • Membership grown to 33 members • Communication Satellite Operators • Satellite Service Users • Satellite Monitoring Equipment Vendors • Other Organizations concerned with Interference • Founding Members: Intelsat, PanAmSat, Inmarsat, NewSkies, QinetiQ, Glowlink • Military oriented members: General Dynamics, Aerospace Corp., Ball Aerospace & Tech, & MITRE

  5. Tools on SUIRG Web site • Up-linker Company Registry • actively collecting up-link registrant companies • Interference Incident Logging • actively collecting interference incident data • Certified Trained Operator Registry • (under development)

  6. On-going Programs • Training & Certification Program • Review & Certify Sat Ops Training • Establish Certification Sat. Ops. DB • Interference Source Identifier • Unique ID embedded in datastream • Interference Signature & Resolution DB • Regulatory WG • BWA shared usage of FSS C-band • Active participant in industry letter to EC requesting non-approval at next ITU meeting

  7. Is currently being introduced country by country worldwide Is being considered by ITU Future mobile phone networks (IMT Advanced, 4G, ….) Broadband Wireless Access (BWA), WiMax, FWA, …. 3.4 3.5 3.6 3.7 3.8 3.9 4.1 4.2 4.0 Std. C Extended C Band commonly used by FSS satellites Additional band (FSS, feeder links for MSS, …) New users in C-band downlinks BWA or IMT in ANY part of “our” C-band downlink will have an impact on FSS reception in ALL of the band

  8. BWA band Unwanted Emission Levels Signals appear at the input of the LNB with a much higher power density than the satellite signals How much suppression of out-of-band components can one realistically expect from BWA or IMT equipment? Appendix 3 of the Radio Regulations provide limits for spurious emissions

  9. SUIRG Field Testing • Why: Provide additional quantifiable data for administrations and other interested organizations • When: Tentative August/September 2007

  10. Who will participate and/or contribute? • US Navy NAVSEA NSWCDD Q53 Section • SES-NewSkies • SES-Americom • Intelsat • AsiaSat • WiMax Forum • Others welcome

  11. What will be tested? • Measure interference generated by WiMax Base Station (BS) and Subscriber Station (SS) transmissions into a satellite receiving station by measuring satellite channel C/N, BER and power levels

  12. Typical Test Configuration

  13. Test Program • Procedure will be verified and agreed upon by the following organizations: • SUIRG: (Satellite Users Interference Reduction Group) • WBU-ISOG: (World Broadcasting Union – Inter Satellite Operations Group) • GVF: Global VSAT Forum • WIMAX Industry (and associated Organisations) • CASBAA (Cable and Satellite Broadcasting Association of Asia) • NAVSEA NSWCDD Q53 (US Navy)

  14. Test Program • Particular attention will be on the following: • Output level from the WIMAX transmitter. • Distance of the WIMX transmitter from the Satellite antenna. • Angle of WIMAX transmitter from Satellite antenna bore sight. • LNB signal compression • If required, testing will also be conducted using different transmit frequencies from the WIMAX transmitter.

  15. Test Program • The entire testing process can be witnessed by any interested party involved in the Satellite Industry. • All results will be made available within 15 days following the conclusion of testing • The “TV Picture Quality” result will be based on the following: • Grade 1: Excellent Broadcast quality • Grade 2: Occasional Blocking, poor BER • Grade 3: Frequent Blocking, Emergency Broadcasts only • Grade 4: Unusable

  16. Test Program • Procedural steps A—J will be repeated upon the insertion of the band pass filter • Spectrum Plots from the Analyzer will be taken at every point during procedure using the following settings: • Span: 100Mhz • RBW: 100Khz • VBW: 1Khz • 5dB/div ( or a more applicable as deemed necessary during the test) • Max hold or Video Averaging Techniques may be used if deemed necessary

  17. SUIRG’s Future • Do you have problems with satellite interference? • Interference is a Quality of Service issue • Take a pro-active position to reduce interference • If you support what SUIRG is doing then please consider membership.

  18. SUIRG Update • 2007 SUIRG Interference Conference/Meeting • 27-29 November 2007 • Hong Kong • Hosted by AsiaSat • $500 non-member attendance fee

  19. Interested in SUIRG’s activities • Bob Ames (bobames@suirg.org) • www.suirg.org • Sign-up for Interference e-News on web site • SUIRG Fact sheet available

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