×

UNSCHEDULED POWER SAVE DELIVERY METHOD IN A WIRELESS LOCAL AREA NETWORK FOR REAL TIME COMMUNICATION

  • US 20050136833A1
  • Filed: 12/19/2003
  • Published: 06/23/2005
  • Est. Priority Date: 12/19/2003
  • Status: Active Grant
First Claim
Patent Images

1. A method of performing power save operation in a wireless local area network (WLAN) by a mobile station while performing voice communications, comprising:

  • admitting a reserved traffic stream at an access point, including establishing a reserved buffer at the access point for buffering data corresponding to the reserved traffic stream to be transmitted to the mobile station;

    waking up a WLAN subsystem of the mobile station from a low power state;

    transmitting a polling frame to the access point over the WLAN channel, the polling frame identifying the reserved traffic stream and including an aggregation indicator;

    in response to transmitting the polling frame, receiving an aggregate response at the mobile station over the WLAN channel, wherein the aggregate response includes at least one frame of data from an aggregate buffer of the access point, the aggregate buffer for buffering both unreserved and reserved data for the mobile station, and wherein receiving the aggregate response continues until the aggregate buffer is empty or a service time period expires; and

    upon receiving the aggregate response, setting the WLAN subsystem into the low power state.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×