Target cell determining method, user equipment, base station and system in switching process

Abstract

The invention discloses a method of determining an object district in the switching process, comprising: receiving switching command of physical layer identification carrying along the object district by a user equipment (UE); acquiring the physical layer identification of adjacent districts from a synchronizing channel of the adjacent districts; when the acquired physical layer identification isconsistent with that carried along in the received switching command, determining the adjacent districts are the object districts. In addition, the invention also discloses a UE, a source base station and a determining system of the object district in the switching process. The technical scheme of the invention requires no dynamic broadcast channel, thereby saving delay of reading the broadcast channel, shortening interrupting time in the switching process, furthermore increasing the switching performance.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a method for determining a target cell in a handover process, user equipment, a base station and a system. Background technique [0002] In a communication system, when a user equipment (UE) is handed over between cells, the whole handover process roughly includes four steps: measurement-report-judgment-execution. That is, when the radio conditions change, the UE measures the adjacent cell, and sends a measurement report including the physical layer identifier (that is, the regional identity) and quality information of the adjacent cell to the source base station, and the source base station makes a decision based on the measurement report. When it is decided that the UE will switch to the target cell, it will exchange information with the target base station according to the physical layer identity of the target cell to complete the resource preparation of the target ...

AI Technical Summary

Problems solved by technology

[0004] However, in the above process, due to the long sending period of the main broadcast channel and the dynamic broadcast channel, for example, in some systems, the sending period of the main broadcast channel is about 40ms, and the sending period of the dynamic broadcast channel is about 80ms, then the UE reads the broadcast channel The period of the handover is roughly 120ms. At this time, the UE has disconnected from the source cell and has not established a connection with the target cell. Therefore, too long handover interruption time may cause the UE to generate data when receiving or sending data. Interruption, resulting in poor switching performance

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