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Wireless device location services

  • US 9,282,546 B2
  • Filed: 07/22/2014
  • Issued: 03/08/2016
  • Est. Priority Date: 11/06/2008
  • Status: Active Grant
First Claim
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1. A wireless communication system comprising:

  • a location determining node comprising;

    a network interface configured to transmit a request, to an evolved Node B (eNB), to order a user equipment (UE) to transmit sounding reference signals (SRS);

    the eNB comprising;

    a network interface configured to receive the request from the location determining node;

    a processor configured to generate an up link (UL) SRS resource allocation for the UE; and

    a transmitter configured to transmit an indication of the UL SRS resource allocation to the UE;

    at least three location measurement units (LMUs), each LMU comprising;

    a receiver configured to receive, from the UE, an UL SRS;

    a processor configured to generate locating information based on the received UL SRS; and

    a network interface configured to transmit the locating information to the location determining node,wherein the location determining node further comprises a processor configured to determine a position of the UE based at least on the locating information generated by each of the at least three LMUs.

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