Service access method and mobility management entity

Abstract

The embodiment of the invention provides a service access method and a mobile management entity. The method comprises the following steps: the mobile management entity MME receives a service status message sent by a first subscriber identification module SIM (Subscriber Identify Module) card on a first subscriber terminal UE, and the service status message carries the data service state of the first SIM card; if the data service state is in an open state, when the MME receives a paging message sent to the first SIM card by a second UE, the MME sends the paging message to a second SIM card on a first UE, so that the situation that the data service of a PS region is hung or suspended is avoided, and the reliability of a communications network is further improved.

Description

Technical field [0001] The embodiment of the present invention belongs to the field of communication technology, and in particular relates to a service access method and a mobility management entity. Background technique [0002] With the continuous maturity of Long Term Evolution (LTE) network technology, users are more and more inclined to use Subscriber Identity Model (SIM) cards of the LTE standard. At the same time, the current User Equipment (UE) ) Usually has dual-card dual-standby functions. Therefore, usually the user terminal UE can simultaneously install an LTE standard card and ordinary second-generation mobile communication technology (2rd-generation, 2G) / third-generation mobile communication technology (3rd-generation). , 3G) network standard cards, LTE standard cards are mainly used to process data services in the packet switching (PacketSwitch, PS) domain, and ordinary 2G / 3G standard cards are mainly used to process circuit switching (CircuitSwitched, CS) domains ...

AI Technical Summary

Problems solved by technology

[0004] However, the existing technology has the following problem: when the user terminal UE has data services on the PS domain on the LTE card, if there are other user terminals paging the user terminal UE, the user terminal UE triggers the LTE The network falls back to the 2G / 3G network to handle voice services in the CS domain. If the network after the rollback does not support data services, the data services carried out under the LTE network can only be suspended or interrupted, thereby reducing communication network reliability

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