METHOD OF SELECTING A COMMUNICATION SYSTEM FOR OPERATING WITH A COMMUNICATION DEVICE IN AN IDLE MODE, AND COMMUNICATION DEVICE

摘要

A method of selecting a communication system (2, 4) for operating with a communication device (100) during an idle mode of operation of the communication device is described. The communication device (100) is capable of operating with at least two communication systems. The method comprises determining (302, 304, 306) the one communication system of the at least two communication systems (2, 4) with which the communication device (100) has a smallest power consumption when operating in the idle mode of operation, and selecting the determined one communication system for operation with the communication device during the idle mode of operation.