Patent ID: 9439110
Filing Date: 2016-09-06
CPC Classification: H04W

Claim Text:
1. A method for spectrum handover in cognitive radio (CR) systems, the method comprising: configuring a CR dedicated wireless network device identity (DWNDI) of a user equipment (UE) to be a CR DWNDI value shared by plural UEs within a cell of a base station which communicates with the plural UEs at a working frequency; instructing, by the base station, the plural UEs to perform spectrum handover to a target frequency using a spectrum handover command which is sent via a channel identified by the CR DWNDI value and received by the plural UEs according to the CR DWNDI value after the base station detects that a user of an authorized system appears at the working frequency; and communicating, by the base station, with the plural UEs at the target frequency after the spectrum handover.