Patent ID: 8055213
Filing Date: 2011-11-08
Classification: H04B,H04W

Abstract:
1. A method of dynamically selecting a frequency band in a Customer Premise Equipment (CPE) in a Cognitive Radio (CR) wireless communication system, the method comprising: receiving, from a CR base station (CR BS), a band monitoring request message including information identifying frequency bands that the CPE is to monitor; monitoring, at the CPE, reception of a signal from a neighboring primary Base Station (BS) in a current frequency band now in use, based on the band monitoring request message; receiving, at the CPE, a current frequency band list including currently available frequency bands, the current frequency band list being broadcasted periodically by the CR BS; receiving, at the CPE, a candidate frequency band list including candidate frequency bands, the candidate frequency band list being broadcasted intermittently by the CR BS; and sending a sensing report message including information about the current frequency band to the CR BS, wherein the available frequency bands include frequencies on which a signal from a primary system has not been sensed.