A terminal access method and system

Abstract

Disclosed are a terminal access method and system. The method comprises: after a terminal accesses a network, according to a mode of the radio network currently accessed by the terminal, a functional entity on the network side starting a measurement preset for the terminal; making a redirection decision according to a measurement report reported by the terminal; and redirecting the terminal according to a redirection decision result. In the present invention, after the terminal accesses the network, according to a different mode of the accessed network, the measurement preset for the terminal is started, so that the terminal can access radio networks of different modes while ensuring service continuity. In particular, an LTE network can be preferably used as an access network for a multi-mode single-standby terminal or a dual-mode single-standby terminal, in which case advantages of the LTE network are fully utilized and characteristics of early coverage of the LTE network are fully considered, thereby achieving continuity of data services.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a terminal access method and system. Background technique [0002] Long Term Evolution (Long Term Evolution, LTE) network, as a new network technology, has a significant advantage in high-speed data services. However, network construction is a gradual process. In the early stage of network construction, local coverage or hotspot coverage may be used. Some areas of the LTE network may provide Packet Switching (PS) services, but cannot achieve full coverage of PS services. This has led to LTE networks using Time Division Synchronous Code Division Multiple Access (TimeDivision-Synchronous Code Division Multiple Access, TD-SCDMA) or Enhanced Data Rate for GSM Evolution (EnhancedDataRateforGSMEvolution, EDGE) technology for a long time. , RAN) is the coverage of the packet domain of the GERAN network to ensure the coverage of the service itself. [0003] However...

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Problems solved by technology

[0003] However, it is not easy to make the LTE network have a complete heterogeneous interaction function to realize the complete interaction between the LTE network and the TD-SCDMA network or the GERAN network. Especially the PSHO function, to support the handover from LTE to TD-SCDMA Change, the core network also needs to be changed, mobility management entity (MobilityManagementEntity, MME) and serving GPRS support node (ServingGPRSSupportNode, SGSN), SGSN and public data network (PublicDataNetwork, PDN) gateway (PGW) need to support new business interface, It is difficult to implement, and the test stabilization cycle is relatively long

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