Re-positioning method in mobile communication system

Abstract

The invention provides a re-positioning method in a mobile communication system, which comprises the following steps that: a wireless access controller where a source cell is positioned sends a wireless resource request message through a logic interface between the wireless access controller where the source cell is positioned and a wireless access controller where a target cell is positioned, allocates resources to user equipment (UE) in the target cell, and returns a wireless resource response message to the wireless access controller where the source cell is positioned; after receiving thewireless response message from the wireless access controller where the target cell is positioned, the wireless access controller where the source cell is positioned sends a re-positioning request message to a CN, and sends a switching command to the UE at the same moment or after a certain period of time; after receiving a switching completion message from the UE, the wireless access controller where the target cell is positioned returns a re-positioning completion message to the CN; and after receiving the re-positioning completion message, the CN releases the resources used by the UE in the target cell. Through the method, the re-positioning time delay is shortened and the success rate of re-positioning is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a relocation method in a mobile communication system. Background technique [0002] In the mobile communication system, the location of the user will often change while maintaining the service. If the wireless controller of the access network (for example, 3G RNC, 2G BSC) judges that the signal coverage of the source cell where the UE is located becomes weak, it will select the signal Switch to a target cell with better coverage. [0003] When the source cell and the target cell belong to the same type of access network, but are not managed by the same wireless controller of the radio access network, it is called intra-system relocation; if the source cell and the target cell belong to different radio access networks type, it is called intersystem relocation. [0004] The process of intra-system relocation and inter-system relocation in the mobile communication system in the e...

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Problems solved by technology

[0014] Each step of the above process is executed serially in time, especially during the period from process 1 to process 5, the UE is still using the radio resource of the source cell, if the UE moves fast, the radio resource signal of the source cell is rapid Deterioration, the probability of UE's relocation failure will be relatively high

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