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Method for transceiving data on basis of grouping in wireless LAN system, and device for supporting same

  • US 9,538,368 B2
  • Filed: 09/26/2012
  • Issued: 01/03/2017
  • Est. Priority Date: 11/24/2011
  • Status: Active Grant
First Claim
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1. A method for allocating an association identifier (AID) in a wireless local area network, the method comprising:

  • transmitting, by a requesting station, an AID assignment request frame to an Access Point (AP) for requesting a station grouping, the AID assignment request frame including a duty cycle field and a target address field,the duty cycle field indicating a listen interval during which the requesting station wakes to receive a beacon frame,the target address field indicating a peer station with which the requesting station requests to be grouped, wherein when the requesting station and the peer station are grouped, both stations listen for beacon frames during a common time interval;

    receiving, by the requesting station, an AID assignment response frame from the AP as a response to the AID assignment request frame;

    receiving, by the requesting station, a beacon frame from the AP, the beacon frame including a traffic indication map (TIM) element that indicates, based on the assigned AID, whether the AP has buffered traffic for the requesting station,wherein the AID response frame includes an AID field and an AID activation offset field,wherein the AID field indicates an assigned AID identifying the requesting station so that the requesting station belongs to a station group with the peer station, andwherein the AID activation offset field indicates a time offset when the requesting station activates the assigned AID indicated by the AID field.

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