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Method and system for positioning mobile units based on angle measurements

  • US 20050288037A1
  • Filed: 08/12/2005
  • Published: 12/29/2005
  • Est. Priority Date: 07/31/2002
  • Status: Active Grant
First Claim
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1. A method for determining a position of a target mobile unit in a wireless communication system, the method comprising:

  • identifying a neighboring mobile unit that is proximate to the target mobile unit and has a known location;

    receiving a signal from the target mobile unit at the identified neighboring mobile unit;

    measuring a direction of arrival of the received signal;

    receiving a signal from a base station at the identified mobile unit;

    measuring a direction of arrival of the signal received from the base station;

    calculating an angle between the signal received from the target mobile unit and the signal received from the base station; and

    determining the position of the target mobile unit using the calculated angle.

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