Orthogonal frequency division multiple access with carrier sense

Orthogonal frequency division multiple access with carrier sense

  • CN 101,926,140 B
  • Filed: 12/19/2008
  • Issued: 11/09/2016
  • Est. Priority Date: 01/25/2008
  • Status: Active Grant
First Claim
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1. operating WAP so that the method with multiple devices exchange data, described data are by toolThe frequency range having multiple subcarrier wirelessly exchanges, and described method includes:

  • Intercepting the activity at least a portion of multiple subcarrier, described intercepting includes, in described partEach subcarrier;

    In the first moment, detect whether to pass through this subcarrier transmission signal;

    AndWhen described first moment detects signal, wait random interval simultaneously detects whether to pass throughThis subcarrier transmits signal;

    Generating the distribution of multiple subcarrier, the distribution of each subcarrier indicates multiple subcarriers and each subcarrierDistribution is all associated with the equipment in the plurality of equipment, and each in the distribution of described subcarrierIt is based at least partially on and whether detect in one of the plurality of subcarrier subcarrier and to transmitSignal selects, and select the plurality of subcarrier distribution in subcarrier distribution in case will with the plurality ofThe communication of each in equipment separates with the comunication area of other equipment in the plurality of equipment, whereinDescribed subcarrier distributes by making based on described dynamic aggregating subcarrier of intercepting;

    Setting of each being associated of being sent in the plurality of equipment during the plurality of subcarrier is distributedStandby, the described equipment being associated is configured to select a part for sent subcarrier distribution;

    AndThe part using sent subcarrier to distribute communicates with the described equipment being associated, whereinChange the correction process communicating other at described WAP, so that not dividing at the subcarrier being sentThe poor information in subcarrier in the described part joined will not be interpreted mistake.

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