Method and system for re-accessing control terminal

Abstract

A method and system for controlling a terminal to reaccess. The method includes: a base station modifies the restart count of a downlink channel description message and transmits the downlink channel description message to the terminal when it learns the configuration information or status of a first access network gateway is changed; the terminal performs a disconnecting network operation and reconnects the base station when it detects the restart count of the downlink channel description message is changed after receiving the downlink channel description message; the base station rebuilds a data access with the first access network gateway when the configuration information of the first access network gateway is changed, or builds a data access with a second access network gateway when the status information of the first access network gateway is changed. The solution enables a configuration to be varied conveniently and the base station to connect to an access network gateway in normal status automatically, and improves the reliability and maintainability of the system.

Description

technical field [0001] The present invention relates to a WiMAX (Worldwide Interoperability for Microwave Access, Worldwide Interoperability for Microwave Access) wireless communication system, in particular to a method and system for controlling terminal re-access. Background technique [0002] In the WiMAX system, the R6 interface is the interface between the BS (base station) and the access gateway (Access ServiceNetwork Gate Way, ASN-GW), and the BS accesses the core network (Center Network, CN) through the access gateway. When the configuration changes, or in a backup system with multiple access gateways, the main access gateway fails. In the existing mode, the terminal cannot automatically re-complete the establishment of access and data paths, which causes the terminal to be in a A "fake death" state, although the terminal still displays the status of being connected to the base station, but it cannot perform any data transmission. At this time, the BS must be restart...

AI Technical Summary

Problems solved by technology

[0002] In the WiMAX system, the R6 interface is the interface between the BS (base station) and the access gateway (Access ServiceNetwork Gate Way, ASN-GW), and the BS accesses the core network (Center Network, CN) through the access gateway. When the configuration changes, or in a backup system with multiple access gateways, the main access gateway fails. In the existing mode, the terminal cannot automatically re-complete the establishment of access and data paths, which causes the terminal to be in a A "fake death" state, although the terminal still displays the status of being connected to the base station, but it cannot perform any data transmission. At this time, the BS must be restarted, or all terminals must be manually disconnected before they can be fully connected again. The impact caused by the system is relatively large, and the time is long, and the operation is inconvenient

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