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Communication method in wireless local area network system

  • US 9,560,586 B2
  • Filed: 07/19/2012
  • Issued: 01/31/2017
  • Est. Priority Date: 07/19/2011
  • Status: Active Grant
First Claim
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1. A method for communicating in a Wireless Local Area Network (WLAN) system, the method comprising:

  • receiving, by a relay station (STA) from an Access Point (AP), a first beacon frame including a first traffic indication map (TIM) element;

    generating, by the relay STA, a second beacon frame by including a part of the first TIM element, which is allocated for a receiving STA; and

    transmitting, by the relay STA, the second beacon frame to the receiving STA after receiving the first beacon frame,wherein the second beacon frame includes a second TIM element generated based on the first TIM element,wherein the first TIM element includes a first bitmap indicating whether buffered data for at least one STA associated with the AP is present or not, andwherein the second TIM element includes a second bitmap indicating whether buffered data for the receiving STA is present or not,wherein the method further comprises;

    receiving, by the relay STA, a TIM request frame from the receiving STA; and

    configuring, by the relay STA, a network with the receiving STA by transmitting a TIM relay response frame as a response to the TIM request frame,wherein the TIM relay request frame includes information on an identifier of the AP,wherein the TIM relay response frame includes information on an identifier of the relay STA, andwherein the relay STA is capable of being supplied by power.

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