METHOD FOR SPECTRUM SHARING BY PRIMARY AND SECONDARY NETWORKS BASED ON COGNITIVE BEAMFORMING

摘要

Method and systems of sharing a frequency spectrum between a primary wireless network and a secondary wireless network coexisting with the primary wireless network are provided. At a node of the secondary network, at a bottom of a protocol stack integrated between a plurality of antennas and upper layers of the protocol stack, a beamforming scheme is determined for transmission to scheduled users of the secondary network. Using this technology, a newly- deployed wireless network can access a spectrum band based on cognitive beamforming without mutual temporal exclusion, i.e., without interrupting the ongoing transmissions of coexisting wireless networks on the same bands, and without cross-technology communication.