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Method of measuring speed of a mobile unit and a receiver for use in a wireless communication system

  • US 5,787,348 A
  • Filed: 12/06/1995
  • Issued: 07/28/1998
  • Est. Priority Date: 12/06/1995
  • Status: Expired due to Fees
First Claim
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1. A method of measuring speed of a mobile unit in communication with a wireless communication system, the wireless communication system comprising a switch and a base station in communication with the switch, the method comprising the steps of:

  • receiving a radio frequency, RF, signal from the mobile unit;

    measuring signal quality of the RF signal during a first time period to produce a first group of samples;

    sampling the received quality signal during a first time period and at a first sampling rate to produce a first group of samples;

    sampling a received quality signal during a second time period and at a second sampling rate to produce a second group of samples;

    calculating a variation in signal quality of the RF signal in response to the first and second group of samples;

    determining a speed measurement in response to the variation in signal quality; and

    the base station directing to the switch a plurality of handoff requests at a timing rate, the timing rate adjusted based on the speed measurement.

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