| 摘要 |
A mobile terminal (UE) used in a mobile communication network that includes a mobility management entity (MME) and a serving gateway (S-GW), receives paging using IMSI (International Mobile-Station Subscription Identifier) from the MME, upon an arrival of an incoming call destined for the UE from outside of the mobile communication network, wherein the incoming call is notified to the serving gateway though a specific S5/S8 bearer, which upon restarting of the MME, the S-GW maintains, while the S-GW deletes other bearers and then the MME is notified of the incoming call by a Downlink Data Notification signal inclusive of the IMSI sent from the S-GW, and in response to the paging, re-attaches to the mobile communication network.
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