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Positioning method and device for drive test

  • US 9,581,680 B2
  • Filed: 09/30/2013
  • Issued: 02/28/2017
  • Est. Priority Date: 12/26/2012
  • Status: Active Grant
First Claim
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1. A positioning method for a drive test, applied to positioning in a drive test for rail transit, the method comprising:

  • determining fixed parking sampling points of a testing vehicle in drive test data, wherein the determining fixed parking sampling points of a testing vehicle in drive test data comprising determining sampling points, where radio delays have an amplitude of variation smaller than a pre-set threshold, among consecutive sampling points having same serving cell identification information in drive test data, as a fixed parking sampling points of a testing vehicle, wherein the drive test data further include radio signal delays of the sampling points, and the radio signal delays are a measurement of time taken by radio signals transmitted from a serving cell base station to the testing vehicle, and reflects the distance between the testing vehicle and the serving cell base station;

    determining location information of the fixed parking sampling points of the testing vehicle according to serving cell identification information of the fixed parking sampling points of the testing vehicle in the drive test data and information of a route matching the drive test data; and

    determining location information of a moving sampling point between the fixed parking sampling points of the testing vehicle in the drive test data according to the information of the route,wherein the determining location information of the fixed parking sampling points of the testing vehicle in the drive test data according to the information of the route comprises;

    matching a serving cell identification sequence of fixed parking points in the information of the route with a serving cell identification sequence of the fixed parking sampling points of the testing vehicle in the drive test data, and determining location information of the fixed parking points in the information of the route matching the fixed parking sampling points of the testing vehicle in the drive test data, as the location information of the fixed parking sampling points of the testing vehicle in the drive test data.

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