Patent ID: 7289803
Filing Date: 2007-10-30
Classification: H04W

Abstract:
1. A system for performing spectrum monitoring measurements by a microcell base station in a layered cellular network that includes macrocell and microcell wireless systems, comprising: transmitting means transmitting a control message from a microcell base station to a microcell mobile station, to delay reselecting another control channel by the microcell mobile station; turn off means turning off the microcell base station's transmitter while not serving calls or engaged in processing calls of mobile stations; comprising: first retuning means retuning the microcell base station's receiver to a frequency to be monitored; measuring means measuring a signal strength on said frequency; second retuning means retuning the receiver back to its assigned frequency, and turn on means turning on the transmitter; whereby spectrum-monitoring measurements are made without impacting the service provided by the microcell wireless system.