Method and apparatus for co-channel interference measurements and base station color code decoding for drive tests in TDMA, cellular, and PCS networks

  • US 6,931,235 B2
  • Filed: 02/28/2001
  • Issued: 08/16/2005
  • Est. Priority Date: 02/29/2000
  • Status: Active Grant
First Claim
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1. A method of measuring co-channel interference in a wireless network, the method comprising:

  • receiving a composite signal including signals from plural base stations of the wireless network;

    correlating the received composite signal with an a prior known burst waveform;

    registering all correlation peaks found as a result of correlating as distinct components in a result database;

    determining, for each component, if it is a new instance of a component already acquired during previous measurements, or if it is a new component;

    in the event that a component is determined to be a new instance of a component already acquired during previous measurements, assigning to that component an old identifier consistent with previous instances of the same component;

    in the event that a component is determined to be a new component, assigning to that component a new identifier;

    determining, for each component, its relative power by the height of its respective correlation peak;

    log relative power data into the result database for all of the components;

    determining, for each component, its time-of-arrival relative to a time-base reference; and

    log time-of-arrival data into the result database for all of the components.

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