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Uplink poll-based power save delivery method in a wireless local area network for real time communication

  • US 20050138451A1
  • Filed: 12/19/2003
  • Published: 06/23/2005
  • Est. Priority Date: 12/19/2003
  • Status: Abandoned Application
First Claim
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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;

    acquiring a WLAN channel between the mobile station and the access point;

    transmitting a polling frame to the access point over the WLAN channel, the polling frame identifying the reserved traffic stream;

    in response to transmitting the polling frame, receiving a response frame at the mobile station over the WLAN channel, the response frame being transmitted by the access point and identifying the reserved traffic stream; and

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

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