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Virtual clear channel avoidance (CCA) mechanism for wireless communications

  • US 20050226270A1
  • Filed: 04/13/2004
  • Published: 10/13/2005
  • Est. Priority Date: 04/13/2004
  • Status: Active Grant
First Claim
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1. An arrangement for avoiding contention on a communication medium among devices including at least a transmitter and a receiver, the arrangement comprising:

  • a first portion configured to instruct the receiver to indicate that the communication medium is busy for a time period substantially longer than an actual frame transmission period being sent from the transmitter to the receiver; and

    a second portion configured to prohibit the receiver from transmitting on the communication medium during the time period.

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