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Target cell determining method and device

A technology of target cell and source cell, applied in the field of communication, can solve the problems that affect the success rate of UE target cell and cannot guarantee the success of handover, etc.

Inactive Publication Date: 2014-11-26
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the handover of the primary serving cell or the reconfiguration process of the secondary serving cell in the carrier aggregation system, since the base station only determines the target cell according to the signal quality of each adjacent cell in the measurement report, if other transmission performance of the target cell The parameters cannot guarantee the success of handover or reconfiguration, which will seriously affect the success rate of UE accessing the target cell and the data transmission rate of UE

Method used

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  • Target cell determining method and device

Examples

Experimental program
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Embodiment 1

[0027] Embodiments of the present invention provide a method for determining a target cell, such as figure 1 As shown, the execution subject base station in the embodiment of the present invention is the base station to which the UE's source primary serving cell belongs, and the method may include:

[0028] S101. The base station determines at least one candidate cell according to a measurement report reported by a UE (User Equipment, user equipment).

[0029] In the carrier aggregation system, when the UE is moving, the UE can perform a series of measurements. The specific measurement process of the UE is as follows: the base station sends a measurement configuration message to the UE, and the UE performs signal quality measurement according to the measurement configuration message, and generates Measurement reports are sent to the base station.

[0030] It should be noted that the measurement configuration message carries the measurement identifier, measurement object, repo...

Embodiment 2

[0074] Embodiments of the present invention provide a method for determining a target cell, such as figure 2 As shown, it is specifically applied to the switching process of the primary serving cell, wherein at least one candidate cell is at least one candidate primary serving cell, and the target cell is the target primary serving cell. When the source primary serving cell and at least one candidate primary serving cell belong to the same In the case of one base station, the executing subject base station in the embodiment of the present invention is the base station to which the UE's source primary serving cell belongs, and the method may include:

[0075] S201. The base station sends a measurement configuration message to the UE.

[0076] In the carrier aggregation system, when the UE is moving, the UE can perform a series of measurements. The specific measurement process of the UE is as follows: the base station sends a measurement configuration message to the UE, and the...

Embodiment 3

[0266] Such as Image 6 As shown, the embodiment of the present invention provides a base station 1, the base station 1 includes:

[0267] The determining unit 10 is used for determining at least one candidate cell in a measurement report reported by a UE.

[0268] The obtaining unit 11 is configured to obtain the transmission performance parameter of the at least one candidate cell determined by the determining unit 10 .

[0269] The determining unit 10 is further configured to respectively determine the carrier aggregation priority of the at least one candidate cell according to the transmission performance parameter of the at least one candidate cell acquired by the acquiring unit 11 .

[0270] The determining unit 10 is further configured to determine a target cell to be accessed by the UE from the at least one candidate cell according to the carrier aggregation priority of the at least one candidate cell.

[0271] Optionally, the obtaining unit 11 is further configured ...

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Abstract

The embodiment of the invention provides a target cell determining method and device, and relates to the technical field of communications. In the switchover process of a main service cell or a relocation process of an auxiliary service cell of a carrier aggregation system, target cells to which UE is to have access are determined on the basis of cell carrier aggregation priorities determined according to transmission performance parameters of the cells, and therefore the success rate that the UE has access to the target cells can be improved, and the data transmission rate of the UE is ensured. The method includes the steps of determining at least one candidate cell according to a measurement report reported by the UE, obtaining the transmission performance parameters of the candidate cells, determining the carrier aggregation priorities of the candidate cells according to the transmission performance parameters of the candidate cells, and determining a target cell to which the UE is to have access from the candidate cells according to the carrier aggregation priorities of the candidate cells.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method and device for determining a target cell. Background technique [0002] Carrier aggregation technology is a key technology introduced in the 3GPP LTE-A (The 3rd Generation Partnership Project Long Term Evolution-Advanced, 3rd Generation Partnership Project Advanced Long Term Evolution) system. Carrier aggregation technology can achieve greater data transfer rate. [0003] Currently, in a carrier aggregation system, a UE (User Equipment, user equipment) that performs data transmission based on the carrier aggregation technology may have multiple serving cells, which may specifically include a primary serving cell) and a secondary serving cell. During the mobile process of the UE, the primary serving cell or the secondary serving cell may change. When the primary serving cell or the secondary serving cell changes, the UE needs to re-access the changed pri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/20H04W36/00
Inventor 吕婷李福昌陈国利
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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