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Method for determining timing advance during handover

  • US 5,711,003 A
  • Filed: 11/13/1995
  • Issued: 01/20/1998
  • Est. Priority Date: 05/14/1993
  • Status: Expired due to Term
First Claim
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1. A method for handover of a communication link with a mobile from an old base transceiver station of a first cell of a cellular mobile radio network to a new base transceiver station of a second cell of the cellular mobile radio network, the method comprising the steps ofreceiving at said mobile a handover command;

  • instructing, in said handover command, said mobile not to transmit access bursts to said new base transceiver stationdetermining, by said mobile, a new timing advance with which said mobile must delay transmission of its messages to said new base transceiver station if said new timing advance is not communicated to said mobile in said handover command; and

    without transmitting access bursts, transmitting from said mobile a message containing connection set up information or wanted data to said new base transceiver station, said message being transmitted using said new timing advance.

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