Communication system, method, and apparatus

Abstract

Using LAPI (low access priority indication) information of an RRC Connection Request from a terminal, a base station selects a specific mobility management node.

1 - 30 . (canceled) 
     
     
         31 . A mobile communication system, comprising:
 a terminal configured for Low Access Priority, the terminal including means to provide a source base station with LAPI (Low Access Priority Indication) that is information indicating that a RRC (Radio Resource Control) connection request from the terminal has Low Access Priority, and inform via the source base station a source MME (Mobility Management Entity) of the LAPI to cause the source MME to hold the LAPI therein; and   the source MME including means to receive a Handover Required message sent thereto from the source base station when the terminal performs a handover, select a target MME dedicated for the terminal based on the LAPI held in the source MME, and send a Forward Relocation Request to the target MME.   
     
     
         32 . A mobile communication system, comprising:
 a terminal configured for Low Access Priority, the terminal including means to provide a source RNC (Radio Network Controller) with LAPI (Low Access Priority Indication) that is information indicating that a RRC (Radio Resource Control) connection request from the terminal has Low Access Priority, and inform via the source RNC a source SGSN (Serving GPRS Support Node) of the LAPI to cause the source SGSN to hold the LAPI therein; and   the source SGSN including means to receive a Relocation Required message sent thereto from the source RNC when the terminal performs a handover, select a target SGSN dedicated for the terminal based on the LAPI stored on the source SGSN, and send a Forward Relocation Request to the target SGSN.   
     
     
         33 . A MME (Mobility Management Entity) for a mobile communication system, wherein
 a source MME includes means to receive, via a source base station (eNodeB), and hold therein LAPI provided to the source RNC by a terminal configured for Low Access Priority, the LAPI being information indicating that a RRC (Radio Resource Control) connection request from the terminal has Low Access Priority; and   the source MME includes means to receive a Handover Required message sent thereto from the source base station when the terminal performs a handover, select a target MME dedicated for the terminal based on the LAPI held in the source MME, and send a Forward Relocation Request to the target MME.   
     
     
         34 . A SGSN (Serving GPRS Support Node) for a mobile communication system, wherein
 a source SGSN includes means to receive, via a source RNC (Radio Network Controller), and hold therein LAPI provided to the source RNC by a terminal configured for Low Access Priority, the LAPI being information indicating that a RRC (Radio Resource Control) connection request from the terminal has Low Access Priority; and   the source SGSN includes means to receive a Relocation Required message sent thereto from the source RNC when the terminal performs a handover, select a target SGSN dedicated for the terminal based on the LAPI stored on the source SGSN, and send a Forward Relocation Request to the target SGSN.   
     
     
         35 . A terminal configured for Low Access Priority for a mobile communication system, comprising:
 means to hold LAPI (Low Access Priority Indication) that is information indicating that a RRC (Radio Resource Control) connection request from the terminal has Low Access Priority; and   means to provide a source base station (eNodeB) with the LAPI and inform via the source base station a source MME (Mobility Management Entity) of the LAPI to cause the source MME to hold the LAPI therein;   wherein when the terminal performs a handover, the source base station sends a Handover Required message to the source MME, the source MME, upon reception of the Handover Required message, selecting a target MME dedicated for the terminal based on the LAPI held in the source MME to send a Forward Relocation Request to the target MME.   
     
     
         36 . A terminal configured for Low Access Priority for a mobile communication system, comprising:
 means to hold LAPI (Low Access Priority Indication) that is information indicating that a RRC (Radio Resource Control) connection request from the terminal has Low Access Priority; and   means to provide a source RNC (Radio Network Controller) with the LAPI and inform via the source RNC a source SGSN (Serving GPRS Support Node) of the LAPI to cause the source SGSN to hold the LAPI therein;   wherein when the terminal performs a handover, the source RNC sends a Relocation Required message to the source SGSN, the source SGSN, upon reception of the Relocation Required message, selecting a target SGSN dedicated for the terminal based on the LAPI held in the source SGSN to send a Forward Relocation Request to the target SGSN.   
     
     
         37 . A communication method for a mobile communication system, the method comprising:
 a terminal configured for Low Access Priority, providing a source base station with LAPI (Low Access Priority Indication) that is information indicating that a RRC (Radio Resource Control) connection request from the terminal has Low Access Priority and informing via the source base station a source MME (Mobility Management Entity) of the LAPI to cause the source MME to hold the LAPI therein; and   the source MME receiving a Handover Required message sent thereto from the source base station when the terminal performs a handover, selecting a target MME dedicated for the terminal based on the LAPI held in the source MME, and sending a Forward Relocation Request to the target MME.   
     
     
         38 . A communication method for a mobile communication system, the method comprising:
 a terminal configured for Low Access Priority, providing a source RNC (Radio Network Controller) with LAPI (Low Access Priority Indication) that is information indicating that a RRC (Radio Resource Control) connection request from the terminal has Low Access Priority and informing via the source RNC a source SGSN (Serving GPRS Support Node) of the LAPI to cause the source SGSN to hold the LAPI therein; and   the source SGSN receiving a Relocation Required message sent thereto from the source RNC when the terminal performs a handover, selecting a target SGSN dedicated for the terminal based on the LAPI stored on the source SGSN, and sending a Forward Relocation Request to the target SGSN.   
     
     
         39 . A communication method by a MME (Mobility Management Entity) for use in a mobile communication system, the method comprising:
 a source MME receiving, via a source base station (eNodeB), LAPI (Low Access Priority Indication) provided to the source base station by a terminal configured for Low Access Priority and holing the LAPI, wherein the LAPI is information indicating that a RRC (Radio Resource Control) connection request from the terminal has Low Access Priority; and   the source MME receiving a Handover Required message sent thereto from the source base station when the terminal performs a handover, selecting a target MME dedicated for the terminal based on the LAPI held in the source MME, and sending a Forward Relocation Request to the target MME.   
     
     
         40 . A communication method by a SGSN (Serving GPRS Support Node) for use in a mobile communication system, the method comprising:
 a source SGSN receiving, via a source RNC (Radio Network Controller), LAPI (Low Access Priority Indication) that is provided to the source RNC by a terminal configured for Low Access Priority and holing the LAPI, wherein the LAPI is information indicating that a RRC (Radio Resource Control) connection request from the terminal has Low Access Priority; and   the source SGSN receiving a Relocation Required message sent thereto from the source RNC when the terminal performs a handover, selecting a target SGSN dedicated for the terminal based on the LAPI stored on the source SGSN, and sending a Forward Relocation Request to the target SGSN.   
     
     
         41 . A communication method by a terminal configured for Low Access Priority for use in a mobile communication system, the method comprising:
 holding LAPI (Low Access Priority Indication) that is information indicating that a RRC (Radio Resource Control) connection request from the terminal has Low Access Priority; and   providing a source base station (eNodeB) with LAPI and informing via the a source base station a source MME (Mobility Management Entity) of the LAPI to cause the source MME to hold the LAPI therein,   wherein when the terminal performs a handover, the source base station sends to the source MME a Handover Required message, the source MME, upon reception of the Handover Required message, selecting a target MME dedicated for the terminal based on the LAPI held in the source MME to send a Forward Relocation Request to the target MME.   
     
     
         42 . A communication method by a terminal configured for Low Access Priority for use in a mobile communication system, the method comprising:
 holding LAPI (Low Access Priority Indication) that is information indicating that a RRC (Radio Resource Control) connection request has Low Access Priority; and   providing a source RNC (Radio Network Controller) with LAPI and informing via the source RNC a source SGSN (Serving GPRS Support Node) of the LAPI to cause the source SGSN to hold the LAPI therein,   wherein when the terminal performs a handover, the source RNC sends to the source SGSN a Relocation Required message, the source SGSN, upon reception of the Relocation Required message, selecting a target SGSN dedicated for the terminal based on the LAPI held in the source SGSN to send a Forward Relocation Request to the target SGSN.