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Method and apparatus for controlling wireless medium congestion by adjusting contention window size and disassociating selected mobile stations

  • US 7,787,366 B2
  • Filed: 10/31/2005
  • Issued: 08/31/2010
  • Est. Priority Date: 02/02/2005
  • Status: Expired due to Fees
First Claim
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1. A method of alleviating congestion in a wireless medium comprising:

  • determining, by an access point (AP), whether congestion exists on the wireless medium;

    on a condition that congestion is determined to exist on the wireless medium, determining whether there are any low priority traffic streams established between the AP and at least one wireless transmit/receive unit (WTRU);

    decreasing a packet transmission delay associated with low priority traffic streams on a condition that congestion is determined not to exist on the wireless medium;

    increasing the packet transmission delay associated with the low priority traffic streams on a condition that congestion is determined to exist on the wireless medium; and

    on a condition that there are no low priority traffic streams established between the AP and at least one WTRU, disassociating at least one WTRU based on an amount of time spent by the WTRUs trying to transmit and retransmit unacknowledged packets.

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