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A cell selection method and device

A cell selection and primary cell technology, applied in the field of communication, can solve problems such as restoring user equipment speed, achieve the effect of restoring speed and improving system capacity

Active Publication Date: 2018-10-12
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the user equipment performs intra-frequency handover only based on the measured signal quality from the user equipment to the primary cell, resulting in that the rate of the user equipment cannot be recovered in time through carrier aggregation after the user equipment performs the same-frequency handover, and the peak rate of a single user and the peak rate of a single user cannot be improved. The problem of LTE-A system capacity

Method used

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  • A cell selection method and device
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  • A cell selection method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0028] An embodiment of the present invention provides a cell selection method, which is applied to a base station, such as figure 2 shown, including:

[0029] Step 101, receiving the A3 event measurement report and the A6 event measurement report sent by the user equipment.

[0030] The A3 event measurement report includes the signal quality of the user equipment to at least two primary cells and the signal quality of the user equipment to the current primary cell, and the A6 event measurement report includes the signal quality of the user equipment to multiple secondary cells Signal quality and signal quality from the user equipment to multiple current secondary cells, the user equipment is registered in the current primary cell, the current secondary cell is a secondary cell within the coverage of the current primary cell, and the user The device has configured the multiple current secondary cells, the current primary cell and the multiple current secondary cells form a c...

Embodiment 2

[0037] An embodiment of the present invention provides a cell selection method, which is applied to such as figure 1 In the shown carrier aggregation network, it is assumed that the user equipment is registered in cell 11, and the cell 11 is the current primary cell, such as image 3 As shown, the method includes:

[0038] Step 201, the base station sends a first radio resource control connection reconfiguration message to the user equipment.

[0039] The first radio resource control connection reconfiguration message includes an A3 event and an A6 event, and the A3 event is used to instruct the user equipment to measure the signal quality from the user equipment to cell 11 and the signal quality from the user equipment to cell 21, And the signal quality from the user equipment to the cell 31. The A6 event is used to instruct the user equipment to measure the signal quality from the user equipment to cell 12 , the signal quality from the user equipment to cell 22 , and the s...

Embodiment 3

[0073] An embodiment of the present invention provides a cell selection method, which is applied to such as Figure 4 As shown in the carrier aggregation network, the carrier aggregation network includes an evolved base station 1, an evolved base station 2, an evolved base station 3, an evolved base station 4, and user equipment, and a micro base station 1 within the coverage of the evolved base station 1, in The micro base station 2 is within the coverage of the evolved base station 2 , the micro base station 3 is within the coverage of the evolved base station 3 , and the micro base station 4 is within the coverage of the evolved base station 4 . Assume that the user equipment is registered in cell 11, which is the current primary cell, such as Figure 5 As shown, the method includes:

[0074] Step 301, the base station sends a first radio resource control connection reconfiguration message to the user equipment.

[0075] The first radio resource control connection reconfi...

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Abstract

Embodiments of the invention provide a cell selection method and a device, relating to the field of communication. The cell selection method and device can recover the rate of user equipment in time through carrier aggregation after the user equipment performs same frequency switching, and improves the peak rate of a single user and LTE-A system capacity. According to the method, an A3 event measurement report and an A6 event measurement report sent from the user equipment are received, each first difference value is acquired, and it is determined that each first difference value is greater than an A3 event threshold value; a target primary cell is determined according to each sum value, wherein the sum value is the sum of the quality of a signal from the user equipment to the primary cell and the quality of a signal from the user equipment to a secondary cell, the secondary cells in the coverage area of the primary cell have the same frequency points as the current secondary cells, and the quantity of the secondary cells in the coverage area of the primary cell is identical to that of the current secondary cells; and first wireless resource control connection reconfiguration information is sent to the user equipment, wherein the first wireless resource control connection reconfiguration information is used for instructing the user equipment to switch to the target primary cell from the current primary cell. The method is used for switching the cell for the user equipment.

Description

technical field [0001] The present invention relates to the communication field, in particular to a cell selection method and device. Background technique [0002] Carrier aggregation (full English name: Carrier Aggregation, English abbreviation: CA) is a technology used to increase the transmission bandwidth in the Long Term Evolution (English full name: Long Term Evolution Advanced, English abbreviation: LTE-A) system, which can effectively improve single User peak rate and capacity of LTE-A system. Such as figure 1 As shown, the carrier aggregation network includes evolved base station (English full name: evolved Node B, English abbreviation: eNB) 1, evolved base station 2, evolved base station 3 and user equipment (English full name: User Experience, English abbreviation: UE) , and the micro base station 1 within the coverage of the evolved base station 1, the micro base station 2 within the coverage of the evolved base station 2, and the micro base station 3 within th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/10H04W36/00H04W36/08H04W36/16H04W36/30
CPCH04W24/10H04W36/0055H04W36/08H04W36/165H04W36/30
Inventor 黄蓉范斌李福昌
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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