| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mobile terminal and a registration method capable of restoring a communication service immediately for an incoming call arriving at a mobile station after resumption of an MME. <P>SOLUTION: A mobile terminal (UE:User Equipment) is used in a mobile communication network including an MME(Mobility Management Entity), an SGSN(Serving GPRS Support Node), and an S-GW(Serving Gateway), and having an ISR(Idlemode Signalling Reduction) function. When the MME resumes in the mobile communication network, the S-GW holds all bearers and notifies the MME of an incoming call from outside the mobile communication network by a Downlink Data Notification signal including an IMSI(International Mobile-Station Subscription Identifier). The mobile terminal has: means of receiving paging from the MME by using the IMSI; and means of re-registering (re-attaching) the mobile terminal, which receives the incoming call, to the mobile communication network. <P>COPYRIGHT: (C)2012,JPO&INPIT |
