Method, system and equipment for hanging-up and recovering business

Abstract

The invention discloses a service suspension method, which comprises: when an user equipment stationed in a group field needs to initiate a circuit field service, the core net equipment of the group field reserves the group network resource of the user equipment according to received indication; when the user equipment is performing a service, saves the descending service data and / or stopping sending the up-link data of the user equipment, and converts to circuit field communication network to perform circuit field service; or, when the user equipment is not performing service, then converts to circuit field communication network to perform circuit field service. The invention further discloses a corresponding treatment system for returning the circuit exchange field service to the conventional network, a user equipment, an evolvement base station, a mobility management entity, a service gateway and a group data network. Applying the invention can reduce the time delay before CS service while processing CS fallback, and further avoids resource waste.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method for suspending a service, a method, a system and a device for resuming a service. Background technique [0002] General Packet Radio Service / Universal Mobile Telecommunications System (GPRS / UMTS, General Packet Radio Service / Universal Mobile Telecommunications System) is a mobile communication network defined by the Third Generation Partnership Project (3GPP, The 3rd Generation Partnership Project), which includes wireless Access network (RadioAccess Network, RAN) and core network (CoreNetwork, CN) two parts. Wherein, the CN is logically divided into a circuit switched domain (Circuit Switched Domain, CS) and a packet switched domain (Packet Switched Domain, PS). The CS domain mainly handles voice services, and the PS domain mainly handles packet data services. [0003] In order to adapt to the development of wireless broadband technology, 3GPP has formu...

AI Technical Summary

Problems solved by technology

[0012] Since PS handover is required before performing CS services, the process of PS handover includes handover preparation and handover execution stages, which takes a long time and causes a large delay. Therefore, the connection time of CS services is increased, which will bring In addition, when you need to perform some special services, such as emergency calls 110 and 112, you need to initiate a call immediately and connect to the CS service as quickly as possible. At this time, if there is an ongoing PS service, you must The PS service must be switched to the PS domain in the GPRS / UMTS network first, and the delay caused by the switch cannot meet the timeliness requirements of these special services

[0013] Furthermore, since the existing 2G system cannot support CS and PS services at the same time, that is, the PS service must be suspended while the UE is performing the CS service

Therefore, even if the PS service in the EPS network is switched to the PS domain of the 2G system at this time, the PS service cannot be used while the CS service is in progress. At this time, the switching of the PS service is meaningless, resulting in a waste of resources

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