Method and system for switching between cells in a base station

Abstract

The invention provides an inter-base-station cell switching method and system. The method includes that a source cell sends an inter-base-station cell switching request when a target cell determined according to signal quality detecting information reported by UE is a neighbor cell of the source cell and is in the same base station of the source cell; the target cell receives the inter-base-station cell switching request, reserves resource required by the UE for residing in the target cell and replying switching request confirmation information to the source cell; the source cell receives the switching request confirmation information and sends RRC reconfiguration request information to the UE; the target cell receives reconfiguration completion information sent by the UE, configures an S1 common channel, updates a mark of a cell of the UE newly resides and a UE mark distributed for the UE by the target cell, and sending resource release indication information to the source cell; the source cell receives resource release indication information and performing corresponding resource release operation according to switching state information of the UE. According to the embodiment of the invention, decrease of time delay of switching between cells of the same base station by the UE is realized and the switching performance is improved.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method and device for handover between cells in a base station. Background technique [0002] With the development of wireless mobile communication technology, mobile communication technology is constantly pursuing higher system performance requirements. These system performance requirements include maintaining a good user experience when users move, which belongs to the category of mobility requirements, that is, handover performance requirements. From the perspective of mobile communication equipment deployment, user mobility scenarios can be divided into three types: cross-core network handover, cross-base station inter-cell handover, and cross-same base station inter-cell handover. Taking the new generation of mobile communication standard LTE (Long Term Evolution, long-term evolution technology) as an example, for the first two handover types, the LTE standard provides ...

AI Technical Summary

Problems solved by technology

Taking the new generation of mobile communication standard LTE (Long Term Evolution, long-term evolution technology) as an example, for the first two handover types, the LTE standard provides two handover procedures, S1 handover and X2 handover, and the requirements for practical applications are relatively more frequent The LTE standard does not give an implementation process for inter-cell handover of the same base station. Although it can be implemented through S1 handover, this implementation method does not necessarily exist for interactive signaling with the core network for inter-cell handover within the base station. , resulting in an increase in switching abnormalities and a prolongation of switching time

[0003] At present, in the mobile communication technology, the solution for inter-cell handover in the base station is usually proposed for a specific scenario, which needs to be supported by additional signaling. When it is applied in a more common scenario, it will increase the handover delay. However, if the handover between cells in the base station is realized by adding new communication equipment, it will increase the cost of the operator, which is not the best choice; if only a single aspect of the handover signaling plane or data plane is optimized, it will also affect To user data plane experience or switching delay requirements

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