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Method for transmitting radio resource control message in asynchronous mobile communication system

  • US 6,782,274 B1
  • Filed: 10/23/2000
  • Issued: 08/24/2004
  • Est. Priority Date: 10/21/1999
  • Status: Expired due to Term
First Claim
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1. A method for transmitting a radio resource message from an asynchronous mobile station to an asynchronous radio network in an asynchronous mobile communication system, the method comprising the steps of:

  • a) determining whether a core network is a synchronous core network or an asynchronous core network;

    b) if the core network is the synchronous core network, generating a radio resource control message having information related to the synchronous core network; and

    c) transmitting the radio resource control message to the asynchronous radio network, wherein the step b) includes the steps of;

    b1) selecting a radio resource control message to be transmitted to the asynchronous radio network and generating a selected radio resource control message;

    b2) picking out information fields related to the asynchronous core network, in the selected radio resource control message;

    b3) inserting information fields related to the synchronous core network into the selected radio resource control message, wherein if the selected radio resource control message is a radio resource control re-establishment request message, the radio resource control re-establishment request message includes at least an information element related to a synchronous core network so that the synchronous call control/management mobility entities can be operated in normal and a RTT information field representing an operation type of the core network, and wherein the information element has a network identification (NID), a system identification (SID), a protocol revision level (P REV) and a minimum protocol revision level (MIN P REV) information fields.

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