A method and system for operating a radiotelephone at reduced power provides for a deenergization of a receiver of the radiotelephone wherein the receiver, during periods of activation, receives a sequence of messages of a control channel, each message having a synchronization portion and a data portion...http://www.google.fr/patents/US5613235?utm_source=gb-gplus-shareBrevet US5613235 - Operation of a radiotelephone in a synchronous extended standby mode for conserving battery power
Operation of a radiotelephone in a synchronous extended standby mode for ...