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Supporting a large number of devices in wireless communications

  • US 10,667,169 B2
  • Filed: 12/21/2017
  • Issued: 05/26/2020
  • Est. Priority Date: 03/06/2012
  • Status: Active Grant
First Claim
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1. A method to provide access to a medium, the method comprising:

  • receiving a time value at a wireless station;

    receiving a traffic indication map (TIM) element at the wireless station, wherein the TIM element comprises bits mapped to an association identifier (AID) of the wireless station;

    on a condition that an indication for accessing a channel in a time interval for wireless stations having AIDs associated with a positive indication in the TIM element is received at the wireless station, determining a backoff number for the wireless station as a function of an index of the AID of the wireless station; and

    determining a medium access backoff time for the wireless station based on the backoff number and the time value.

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