SPECTRUM ACCESS SYSTEM, SAS, CONTROLLER AND METHOD FOR ALLOCATION OF SHARED SPECTRUM

摘要

Spectrum Access System, SAS, controller and base station for allocation of shared spectrum. The SAS controller receives (505) an indicator that a group of channels in the shared spectrum are available for secondary usage. The SAS controller allocates (810) one or more channels in the group to base stations for usage in one or more census tracts. The census tracts may include interior and exterior portions, in some cases. Fractional frequency reuse, FFR, techniques may be used in accordance with the interior and exterior portions of the census tracts for allocation of the channels. Channels may be allocated for Priority Access License, PAL, usage and/or General Authorized Access , GAA, usage, in some cases.