| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mobile terminal and a registration method thereof which allow communication services to recover immediately for a call coming into a mobile station after restart of an SGSN. <P>SOLUTION: In a mobile communication network containing an MME, an SGSN, a GPRS, and a mobile terminal and having ISR functionality, in the case of restart of the SGSN, an S-GW retains all bearers and notifies the SGSN of an incoming call from outside of the mobile communication network by a Downlink Data Notification signal containing an IMSI. The mobile terminal receives a paging using the IMSI from the SGSN for the incoming call and has registering means for re-registering in (re-attaching to) the mobile communication network. <P>COPYRIGHT: (C)2012,JPO&INPIT |
