Patent ID: 6631264
Filing Date: 2003-10-07
Classification: H04B,H04W,Y02D

Abstract:
A radio telephone for communication in a radio system having a plurality of system channels for allowing communication on a selected system channel between the radio telephone and a base station which transmits signals on the selected system channel, the radio telephone comprising:processing means operative, for monitoring a signal transmitted by a base station on one of the plurality of system channels to determine whether the signal has a parameter that meets a predetermined criterion, in response to the monitored signal meeting the predetermined criterion, and when a previous scanning operation has determined that no other system channel exists on which a base station is transmitting a signal, scanning respective system channels and selecting a different transmitted signal for monitoring, and in response to an indication that a system channel is required for a call, scanning the respective system channels for an available system channel on the base station transmitting the monitored signal.