Patent ID: 7308245
Filing Date: 2007-12-11
Classification: H04W,Y02D

Abstract:
1. A mobile station comprising: a decision unit operable to decide a cycle changing time and a cycle-after-change, the cycle changing time being a time at which a paging channel monitoring cycle used by a base station in message transmission is to be changed, and the cycle-after-change being a cycle at which the paging channel is to be monitored after the change; a notification unit operable to notify the base station of a slot cycle index indicating the decided cycle-after-change when the decided cycle changing time has come; and a monitor unit operable to start monitoring the paging channel at the decided cycle-after-change when the decided cycle changing time has come, wherein the decision unit makes the decision at an ending of speech communication so that a) the cycle changing time is decided to be a predetermined time after the ending of the speech communication and b) the decided cycle-after-change is longer than a cycle at which the paging channel is monitored during the predetermined time.