SPECTRUM MANAGEMENT 2004 National Spectrum Managers Association Satellite Spectrum Management Issues

1. SPECTRUM MANAGEMENT 2004National Spectrum Managers AssociationSatellite Spectrum Management Issues Carlos M. Nalda May 19, 2004

2. Satellite Spectrum Management Issues • Ku-band Aeronautical Mobile-Satellite Service (“AMSS”) Issues • Earth Stations On Board Vessels (“ESVs”) • Ku-band versus C-band • Unlicensed Use of the 3650-3700 MHz FSS Band • Intelligent Transportation Service (“ITS”)/Digital Short-Range Communications (“DSRC”) Use of the 5.9 GHz Band

3. Ku-band AMSS Issues • International Developments • WRC-03 adopted a global, secondary AMSS allocation in the 14.0-14.5 GHz FSS uplink band; downlink AMSS operations on an unprotected basis • 2003 Radiocommunication Assembly adopted Recommendation ITU-R M.1643, which sets forth technical and regulatory requirements for Ku-band AMSS systems • Domestic Developments • FCC allocated the 14.0-14.5 GHz Band to AMSS on a secondary basis • Pending petition for rulemaking to adopt AMSS licensing and service rules • One licensed AMSS system – Connexion by Boeing – authorized subject to compliance with Rec. M.1643 and VSAT routine licensing values • One pending AMSS system – the ARINC SKYLink system

4. ESVs – Ku-Band versus C-Band • Spectrum Sharing Environments Are Quite Different • C-band ESVs must address incumbent terrestrial uses (inland, coastal, Gulf of Mexico fixed links) • Ku-band ESVs have far fewer limitations • Co-Primary Regulatory Status for ESV Operations • Coordination with existing FS stations • Protection of future FS operations and USG secondary operations • Disparity Between Ku-band ESV and AMSS allocations • Potentially same transponders/same system but different regulatory status • Potentially affects international coordination and regulatory certainty

5. Unlicensed Use of the 3650-3700 MHz Band • Notice of Proposed Rulemaking – April 23, 2004 • 3650-3700 MHz band -- FSS downlink band for international services • Wireless Internet service providers (“WISPs”) to provide wireless broadband services to rural areas • Fixed – 25 W EIRP; exclusion zone of 180 km within +/- 15° of antenna boresight, 25 km in all other directions • Non-fixed – 1 W EIRP; “listen-before-talk” technology to monitor FSS transmit band and reduce power based on the strength of the received signal

6. Unlicensed Use of the 3650-3700 MHz Band (cont’d) • Many Unanswered Questions • Existing authority to communicate with multiple satellites • Future reorientation of earth stations • Future deployment of new earth stations • Should Unlicensed Users Be Permitted To Restrict or Preclude Licensed Operations?? • A Potentially Dangerous Trend • Does the technology work? • How do regulators/licensed users enforce? • Are any licensed bands safe? • May 13, 2004 – Public notice of an NPRM to allow unlicensed use of unused TV channels by WISPs

7. ITS/DSRC Use of the 5.9 GHz Band • FCC Adopted Rules for ITS/DSRC Use of the 5.850-5.925 GHz Band on a Co-primary Basis • Geographic licensing with a registration requirement for RSUs • Licensing by rule for mobile units • Adopted an ITS standard for equipment based on the 802.11 series of standards • Interference Scenario is FSS into ITS RSUs • Technical studies underway to address RSU deployment issues • ITS/DSRC Deployment Could Potentially Restrict or Preclude Earth Station Deployment