Sharing channel based switch method for mobile communication system

Abstract

The invention discloses a handover method based on a shared channel in a mobile communication system. It is invented to solve the problem that more reliable coding cannot be used due to the complexity of the handover method and the overly complicated handover access message in the existing method, including: when the base station When it is judged that handover is required and the handover is carried out in the same base station, the target cell assigns an identification number to the terminal and configures wireless information and uplink scheduling information; the target cell sends a handover command message through the control channel of the source cell; the message includes at least The identification number assigned by the terminal configures wireless information and uplink scheduling information; the terminal sends a handover completion message on the uplink shared channel reserved by the target cell according to the handover command message. The process of handover and access in the cut-in process of the present invention is very simple, and the handover execution time is shortened. The short handover access message can be expressed with fewer bits, so that the handover access message can use more reliable coding technology, making it easier for the base station receiver to decode.

Description

technical field [0001] The invention relates to a handover method based on a shared channel in a mobile communication system. Background technique [0002] The E-DCH (Extended Dedicated Channel) technology adopted in the current WCDMA system enhances the uplink data rate. In the uplink direction, the extended dedicated channel shares an uplink scrambling code with other channels (such as the dedicated channel DCH), so it can be considered that uplink channel resources are dedicated. If a hard handover occurs between base stations, the handover process is similar to the DCH handover process, that is, after receiving the physical channel reconfiguration message, the terminal changes the wireless parameter configuration at a predetermined time, and then starts communication on the uplink dedicated channel process. [0003] A mobile communication system based on shared channel switching is mainly composed of a terminal, a base station and a core network. The base stations can...

AI Technical Summary

Problems solved by technology

Handover between base stations means that all processing entities on these protocol layers need to be re-established, and because the terminal needs an uplink synchronization process when accessing the target base station, these make the handover execution process between base stations relatively difficult. long, so the method of reserving resources in the target cell will lead to a lot of waste

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