Patent ID: 6973052
Filing Date: 2005-12-06
Classification: H04W,Y02D

Abstract:
1. A method of performing power save operation in a wireless local area network (WLAN) by a mobile station, a recurring service period schedule set up between the mobile station and an access point including regularly scheduled service periods for a reserved traffic stream, the reserved traffic stream identified by a reserved traffic stream identifier, the mobile station having a WLAN subsystem that is initially in a low power mode, the method comprising: powering up the WLAN subsystem of the mobile station; commencing a scheduled service period; receiving from the access point at the end of a scheduled service period an indication that the access point has more reserved data of a reserved traffic stream in a buffer of the access point at an end of the scheduled service period; placing the WLAN subsystem into low power mode at the end of the scheduled service period commencing an unscheduled service period to retrieve the remaining data buffered at the access point for the mobile station, comprising: