×

Sparsed U-TDOA wireless location networks

  • US 8,242,959 B2
  • Filed: 04/18/2007
  • Issued: 08/14/2012
  • Est. Priority Date: 04/18/2007
  • Status: Active Grant
First Claim
Patent Images

1. A method for designing a sparse wireless location system (WLS) associated with a wireless communications system comprising a plurality of geographically dispersed base transceiver stations (BTSs) configured to broadcast downlink beacons to be received by mobile wireless devices, comprising:

  • performing an intelligent network design process to produce the initial network design;

    determining that the initial network design is affected by a downlink beacon discovery performance limiting factor;

    modifying the initial network design by performing at least one of the following actions to produce an updated sparse WLS design;

    deploying at least one enhanced downlink antenna;

    deploying downlink interference cancellation;

    determining that an Abis monitoring system (AMS) is not deployed, and then deploying at least one downlink-only location measuring unit (LMU) at an identified site; and

    determining that an Abis monitoring system (AMS) is deployed, and then enabling the use of Enhanced Beacon Synchronization (EBS) and AMS-derived beacon timing functions; 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.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×