System and method for managing RF signal aggregation at geo-tract boundaries

摘要

Spectrum that is shared by two or more radio devices that operate near a boundary of a tract is managed by a spectrum management system. The system determines a closest point of approach to the boundary for each radio device and an aggregate contributed power at each closest point of approach by the emissions from the radio devices previously granted spectrum access to the shared spectrum. A transmit power limit for the requesting radio device is determined at each closest point of approach. Spectrum access is granted to a requesting radio device and the granted spectrum access includes an authorized transmit power limit that does not exceed the smallest one of the transmit power limits.

主权项

1. A method of managing spectrum that is shared by two or more radio devices that operate near a boundary of a tract, emissions by the radio devices at the boundary not to exceed a predetermined aggregate emission limit, the method comprising:
receiving a request for spectrum access by one of the radio devices; for each radio device, including the requesting radio device and radio devices previously granted spectrum access to the shared spectrum, determining a closest point of approach to the boundary; determining an aggregate contributed power at each closest point of approach by the emissions from the radio devices previously granted spectrum access to the shared spectrum; for each closest point of approach, determining a transmit power limit for the requesting radio device as a function of the corresponding aggregate contributed power and the predetermined aggregate emission limit; determining a smallest one of the transmit power limits; and granting spectrum access to the requesting radio device to use the shared spectrum, the granted spectrum access including an authorized transmit power limit for operation of the requesting radio device, the authorized transmit power limit not exceeding the smallest one of the transmit power limits.