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Techniques for protecting communications in wireless local area networks

  • US 10,314,066 B2
  • Filed: 05/03/2016
  • Issued: 06/04/2019
  • Est. Priority Date: 05/05/2015
  • Status: Active Grant
First Claim
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1. A method of wireless communication comprising:

  • transmitting a first message, the first message being addressed to a plurality of wireless devices, the first message including an indication to the plurality of wireless devices to respond within a first duration of time, the first message indicating to unaddressed wireless devices not addressed by the first message to refrain from contending for access to a subband of a shared frequency spectrum band during the first duration of time;

    receiving a second message from at least one wireless device of the plurality of wireless devices during the first duration of time in response to the first message, the second message indicating to the unaddressed wireless devices or to other wireless devices to refrain from contending for access to the subband of the shared frequency spectrum band during a second duration of time; and

    receiving uplink data from the at least one wireless device on the subband of the shared frequency spectrum band within the first duration of time or the second duration of time.

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