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Method and wireless communication system for locating wireless transmit/receive units

  • US 7,541,977 B2
  • Filed: 12/16/2004
  • Issued: 06/02/2009
  • Est. Priority Date: 12/16/2003
  • Status: Expired due to Fees
First Claim
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1. A method for updating a location of a wireless transmit/receive unit (WTRU), the method comprising:

  • a WTRU receiving a message including a plurality of supported class-of-service (COS) types and associated COS-specific location update periods;

    the WTRU setting a timer to a COS-specific location update period that is determined based on the COS type of an application that the WTRU is currently running; and

    the WTRU periodically transmitting a location update frame at an expiration of the timer.

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