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Position based WPAN (Wireless Personal Area Network) management

  • US 20040233858A1
  • Filed: 09/23/2003
  • Published: 11/25/2004
  • Est. Priority Date: 05/21/2003
  • Status: Active Grant
First Claim
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1. A WPAN (Wireless Personal Area Network), the WPAN comprising:

  • a PNC (piconet coordinator);

    a plurality of DEVs (user piconet devices);

    wherein the PNC transmits UWB (Ultra Wide Band) pulses to each DEV within the plurality of DEVs;

    wherein after receiving its respective UWB pulse, each DEV within the plurality of DEVs transmits a UWB pulse back to the PNC;

    wherein the PNC performs ranging of the relative position of each DEV within the plurality of DEVs using the time duration of round trip time of the transmitted UWB pulse and the received UWB pulse thereby determining the relative distance between the PNC and each DEV within the plurality of DEVs;

    wherein, based on the ranging of each DEVs of the plurality of DEVs, the PNC groups the plurality of DEVs into at least two groups and identifies a corresponding profile for each group; and

    wherein the profile of each group governs the communication between the DEVs of that group and the PNC.

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