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Handover in a mobile communication system using conference facility

  • US 6,985,732 B1
  • Filed: 03/30/2000
  • Issued: 01/10/2006
  • Est. Priority Date: 04/06/1999
  • Status: Expired due to Term
First Claim
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1. A communications network comprising:

  • a central controller which operates to control a zone of the network and which provides a conference call facility;

    at least one gateway engaged in a call with a mobile station via a first communication channel;

    means for generating a hand-off required indication indicating that handover of the call is needed;

    means at the central controller for receiving said hand-off required indication and opening a conference call charnel as a second communication channel for the call; and

    means for handing over said call from the first to the second communication channels and, if the handover is successful, causing the first communication channel to be closed.

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