The method for transmitting a communication signal comprising a plurality of units of information includes transmitting the plurality of units of information via a predetermined number of channel resources; determining a number of the plurality of units remaining in at least a portion of the communication...http://www.google.com/patents/US6359898?utm_source=gb-gplus-sharePatent US6359898 - Method for performing a countdown function during a mobile-originated transfer for a packet radio system
