Title Author Date Audience New York State 700 MHz Waiver Sean O Hara (Syracuse Research Corp.) and Maribel Martinez (NYS-OFT, SWN) 03/21/06 NPSTC SMC Meeting, Arlington VA 1
New York State s s Waiver Last year, New York State filed a waiver for immediate use of their 700 MHz narrowband channels in Southern RPC Region 8 The Metropolitan New York City Area One of the most heavily constrained area in the nation This area is very congested and desperately in need of spectrum relief There are other areas of the country that could benefit from a similar approach, using similar analyses Comment period ended 03/06, but Reply Comments are due 03/28 2
TV Stations Affecting Region 8 700 MHz Operations 3
Interference Mechanisms TV 62,63,64,65,67,68,69 63,64 68,69 Public Safety Bases XMIT on 63 and 64 Public Safety Mobiles XMIT on 68 and 69 Public Safety 4
Approach Used in This Study (1) Under Docket 03-15, New York State OFT filed comments that showed that TV sharing can be maximized through the use of the engineering study At the same time, interference can be minimized as well Supported by NPSTC and PSWN This filing showed that adjacent channels could be utilized at very short spacing to TV operations Even within an adjacent channel TV grade B contour 5
Approach Used in This Study (2) Since then several Guard Band managers have applied for operations short spaced to TV Even within the Grade B contour Access Spectrum and Aloha Communications have received waivers from the FCC allowing these operations So precedent exists Public safety can follow the same approach NPSTC is even developing detailed guidelines for doing this (O Hara, Martinez, Eierman) 6
Approach Used in This Study (3) For Region 8 Most of the metropolitan NYC area is blocked on only one side of the band (63/68 pairing) by co-channel television Within Grade B contours However, the other side (64/69) is available if: Adjacent channel operations within the Grade B can be shown to introduce little or no interference to TV reception Co channel interference to TV stations can be eradicated 7
Possible 700 MHz Operations for Area - Channel 64/69 64/69 Pairing? 8
Stations Pertinent to 64/69 Operational Pairing 9
Conclusion Even the areas most heavily constrained by TV, 700 MHz PS spectrum is still available for us However, significant analyses necessary to support waivers to allow such operation There is resistance from the broadcasters Not easy, potentially huge payoff WE HAVE PROVIDED A TEMPLATE TO FOLLOW THAT CAN DO THIS! And we will provide guidance to anyone else who wants to do this 10
Other Constrained Areas Los Angeles and San Diego LA is perhaps the toughest area in the nation, But either should be workable! 11
Other Constrained Areas San Francisco and San Jose All should be workable! 12
Other Constrained Areas Chicago, Detroit and Indianapolis All should be workable! 13
Other Constrained Areas Greater Boston Should be workable! 14
Other Constrained Areas Greater Philadelphia Should be workable!! 15
Other Constrained Areas Florida Population Centers Should be workable! 16
Help! We need to public safety support on this waiver! APCO and Region 24 have filed already Broadcasters are fighting this hard No real arguments against the analyses, but raising a huge fuss One TV station actually supported the waiver Expect MSTV/NAB to enter the fray in Reply Comments Do not want to set a precedent If this to be successful, it could be used elsewhere as well Comment period ended 03/06, but Reply Comments are due 03/28 17
Contact For Further Information Maribel Martinez Associate Director of Engineering New York State Office for Technology Statewide Wireless Network Program (518) 474-9112 Maribel.Martinez@oft.state.ny.us Sean O Hara Lead Engineer, Consulting Support (Syracuse Research Corporation) New York Statewide Wireless Network (315) 452-8152 ohara@syrres.com 18