Network concealed separation method of subscriber terminal

Abstract

The invention relates to a user terminal network implicit isolation method, which includes: after the user terminal is registered to a long-term evolution network and a 2G / 3G network, a relevant user terminal between the two networks is established. In a network, when the user terminal is entered a free situation, a network nod starts up a movable timer of the user terminal. After an overtime of the movable timer of the network nod occurs, the user terminal is changed to a quasi-implicit isolation situation, and if the user terminal in another network is also in the quasi-implicit situation, then the two networks have the implicit situation to the user terminal, and the mobility management situation of the user terminal in the network is changed to the implicit situation. Therefore, in the isolation method of the invention, two network nodes control independently the mobility of the user terminal to manage the context, and when a downstream data comes, the paging is just done in the current residence RAT network. The influence to the current system is reduced to a smaller degree, and the relevant context synchronized signaling between the two networks is reduced, thereby the network resource is saved.

Description

technical field [0001] The present invention relates to a network implicit separation method of a user terminal (User Equipment, UE), in particular to a method for implicit separation of a user terminal in a dual access system of an evolved network. Background technique [0002] At present, in 3GPP (3rd Generation Partnership Project, third-generation cooperation project), SAE (System Architecture Evolution, system architecture evolution), LTE (Long Term Evolution, long-term evolution) are being studied more and more, and the purpose of LTE is to provide A low-cost network capable of reduced latency, increased user data rates, improved system capacity and coverage. Only PS domain services are used, and the bearer network is IP bearer. [0003] On this basis, many new network architectures have been derived to meet the above requirements, such as figure 1 Shown is a relatively common architecture, in which LTE RAN is the radio access network of the evolved network, and the ...

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Problems solved by technology

[0067] 2. When the UE enters the IDLE state and stays in one RAT for a long time, when the downlink data arrives, it always needs to perform paging in the two RAT systems, wasting network and air interface resources

[0074] 2. For UEs in IDLE state, when downlink data arrives, paging is always performed in the two systems, wasting network and air interface resources

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