SELECTIVELY SKIPPING LISTEN WINDOWS IN POWER SAVING MODE IN MULTI-MODE RADIO HANDSETS

摘要

Disclosed is a method of selectively skipping one or more listen windows during power saving (i.e., sleep mode) operation in a multi-mode radio handset 100 capable of operating on a plurality of radio access networks (RANs). A multi-mode radio handset 100 signals a base station to which it is currently in communication to request that one or more listen windows be skipped considering the delay and jitter requirements of the most time critical application currently running. The request includes data 760 defining a different listen and sleep window sequence. The multi-mode radio handset 100 receives an acknowledgment 620 from the base station indicating that the request has been granted. The acknowledgement 620 includes a start frame parameter that defines when the different listen and sleep window sequence will begin. Upon completion of the different listen and sleep window sequence, the multi-mode radio handset reverts back to the original alternating sequence of listen and sleep windows 450.