| 摘要 |
An embodiment of the present invention provides a method of spectrum use authorization, comprising using a certificated declaration of spectrum licensed by licensed users of said spectrum to authenticate said users. The certificated declaration may provide information on transmitter location, channels occupied and an interference footprint or profile and allow a recipient of such information to determine that an occupied channel is genuinely occupied by a licensed user. The certificated declaration also may allow an unlicensed device to build and maintain a list of incumbent users and allows an unlicensed device to compare location and interference contour data against its own location and transmitter power to determine if it will interfere. Further, it may allow a license holder to distribute information about its presence out of band of the signal to be protected and a license holder to distribute information about its presence over a predetermined geographic area. The certificate may be a standard X.509 certificate with additional fields. An embodiment of the present invention further may comprise transmitting the certificated declaration in band with a licensee's transmissions and may aggregating said certificated declarations by equipment manufacturers and placing them in equipment to be used in said spectrum or making said certificated declarations available over the internet enabling unlicensed equipment to access licensee information from sources other than the licensed transmitter. An embodiment of the present invention also provides an apparatus, comprising a transceiver capable of using a certificated declaration of spectrum licensed to authenticate users of said spectrum.
|
