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Sparsed U-TDOA wireless location networks

  • US 8,140,092 B2
  • Filed: 04/18/2007
  • Issued: 03/20/2012
  • Est. Priority Date: 04/18/2007
  • Status: Active Grant
First Claim
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1. An iterative method for designing a sparse wireless location system (WLS) overlaid on a wireless communications system (WCS), comprising:

  • performing an intelligent network design process to produce a first WLS network design;

    determining that an uplink demodulation performance limiting factor affects the first WLS network design; and

    in response to determining that an uplink demodulation performance limiting factor affects the first WLS design, modifying the first WLS design by performing of the following to produce an updated sparse WLS design;

    (a) determining whether communications system demodulation data is enabled in the WCS, and if so enabling a WLS demodulated data feature;

    (b) if communications system demodulation data is not enabled in the WCS, and if an Abis monitoring system (AMS) is not deployed in the WCS, then enabling a mid-amble only correction feature in the WLS;

    (c) if communications system demodulation data is not enabled in the WCS, and if an Abis monitoring system (AMS) is deployed in the WCS, then enabling an AMS-derived demodulated data feature in the WLS; and

    performing another iteration of the intelligent network design process with updated design specifications and determining whether another performance limiting factor affects the updated sparse WLS design.

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