Cell selection method, system, base station and user equipment implementing cell selection

Abstract

The invention discloses a cell selection method which comprises the following steps: a network side notifies user equipment of the information of occupied code resources in various cells; and the user equipment selects a target cell according to the channel quality and the information of occupied code resources in each cell. Besides, the invention further discloses a system for cell selection, which comprises network side equipment used for notifying the user equipment of the information of occupied code resources in each cell, and the user equipment used for selecting the target cell according to the channel quality and the information of occupied code resources in each cell. The technical scheme can increase the rate of success in cell access or cell switch.

Description

technical field [0001] The present invention relates to communication technology, in particular to a cell selection method, a system for realizing cell selection, a base station and user equipment. Background technique [0002] In the communication system, when accessing a cell, the UE selects a cell with good channel quality to initiate the access process according to the measured channel quality of the cell; during cell handover, the UE can also select a channel according to the measured channel quality of the cell A cell with good quality initiates the handover process, and then the network side allocates code resources for the UE in the cell. [0003] Among them, during the access process, when the network side allocates code resources for the UE in the cell, sometimes it finds that the resources in the cell are not enough, then it may directly reject the access of the UE at this time, or go to other cells to try to provide code resources for the UE. The UE allocates co...

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Problems solved by technology

[0003] Among them, during the access process, when the network side allocates code resources for the UE in the cell, sometimes it finds that the resources in the cell are not enough, then it may directly reject the access of the UE at this time, or go to other cells to try to provide code resources for the UE. The UE allocates code resources, resulting in a lower access success rate and longer access time

Similarly, during the handover, when the network detects that the code resource is allocated to the UE in the neighboring cell, it may sometimes find that the resource of the cell is insufficient, which may cause the handover to fail at this time, or try to handover again in another cell, resulting in The success rate of handover is reduced, and the handover time becomes longer

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