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APPARATUS, SYSTEMS AND METHODS FOR MOBILE NETWORK POSITIONING OF MTC DEVICES USING COMMON REFERENCE OR SYNCHRONIZATION SIGNALS

  • US 20160295374A1
  • Filed: 07/22/2015
  • Published: 10/06/2016
  • Est. Priority Date: 03/30/2015
  • Status: Active Grant
First Claim
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1. A method for improved User Equipment (UE) positioning accuracy in a mobile communication system, the method comprising:

  • providing for a UE configured to listen for Positioning Reference Signal (PRS) transmissions within an operating bandwidth around Direct Current (DC) sub-carrier and at least one non-PRS transmission;

    receiving, at the UE, PRS and non-PRS transmissions transmitted from base stations within the operating bandwidth;

    performing, at the UE, Time of Arrival (TOA) measurements for each of the plurality of base stations, wherein the TOA measurements are determined based on the at least one non-PRS transmission;

    obtaining Observed Time Difference of Arrival (OTDOA) measurements by subtracting the TOA measurements for each of the plurality of base stations from a TOA for a reference base station, and transmitting, from the UE to a Location Server (LS), the OTDOA measurements, wherein the LS performs a positioning estimation of the UE based on the TDOA measurements.

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