A circuit domain fallback processing method and mobility management entity equipment

Abstract

The invention discloses a circuit domain fall back processing method and a circuit domain fall back processing device. The method comprises the steps as follow: A mobile management entity (MME) receives a context release request message sent by a first terminal when the first terminal falls back to a circuit domain communication system; the MME judges whether the first terminal transmits data in a grouped domain communication system, and if yes, stores connection information of the first terminal in the grouped domain communication system. According to the method and the device provided by the invention, continuity of data transmission in the grouped domain communication system can be maintained after the terminal falls back to the circuit domain.

Description

technical field [0001] The present invention relates to the technical field of communications, and in particular to a circuit domain fallback processing method and mobility management entity equipment. Background technique [0002] LTE (Long Term Evolution, Long Term Evolution) network is a full packet switching network, that is, PS (Packet Switch Domain, Packet Domain) communication system, but CS (Circuit Switched Domain, Circuit Switched Domain) services such as voice services are still a long time Indispensable business. In order to ensure that terminals can successfully carry out high-quality CS services on the LTE network, various standard organizations have actively studied and proposed various solutions. [0003] Currently, the CSFB (Circuit Switched Fallback) solution or the SRVCC (Single Radio Voice Call Continuity, single radio mode voice call continuity) solution is mainly used to provide CS services such as voice services. The CSFB solution is suitable for sce...

AI Technical Summary

Problems solved by technology

However, in the current LTE system, when an LTE user falls back from the circuit domain of the LTE network to the 3G / 2G network for voice services through redirection and handover, the data service will be interrupted and cannot be resumed until reconnecting to the LTE network. Therefore, the CSFB solution cannot enable LTE users to maintain their data services in the LTE network. Although some solutions point out that the data services can be re-established in the 2G / 3G network during CSFB, it also cannot maintain high-speed and continuous transmission of data services. , and due to falling back to a low-speed network, the rate drops sharply, which will also cause discontinuous user data and poor user experience.

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