A multi-point cooperative system and its measurement configuration method

A cooperative system and multi-point cooperative technology, applied in the direction of diversity/multi-antenna system, location diversity, electrical components, etc., to achieve the effect of improving system data throughput and reducing the quality of signaling communication

Active Publication Date: 2017-06-27
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the CoMP system, for the coordinated terminal UE, its coordinated cell will evolve from a single cell in LTE technology to multi-cell scheduling together. The measurement configuration of the coordinated cell set is quite different from the measurement configuration during single-cell scheduling. Currently, There are no technical solutions for measurement configuration in CoMP systems

Method used

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  • A multi-point cooperative system and its measurement configuration method
  • A multi-point cooperative system and its measurement configuration method
  • A multi-point cooperative system and its measurement configuration method

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Embodiment 1

[0055] When the UE moves in the serving cell and the SINR value of a certain coordinated cell satisfies the conditions for removing the coordinated cell, the UE reports the coordinated cell to the serving cell, such as image 3 As shown, the UE is moving in the serving cell #1. At this time, the SINR value of the coordinated cell #3 will meet the condition for removing the coordinated cell, and at this time, the coordinated cell #7 will meet the selection requirements of the coordinated cell. At this time, the serving cell #1 will perform CoMP measurement processing, reselect a coordinated cell, and send updated CoMP measurement information to the UE.

Embodiment 2

[0057] Such as Figure 4 As shown, when the UE moves from cell #1 to cell #2, the serving cell of the coordinated cell changes from cell #1 to cell #2, and the UE reports the CoMP measurement result of the coordinated cell change to the serving cell # 2. At this time, the coordinated cell will undergo handover processing, and the coordinated cell will be reselected, and the new serving cell will send updated CoMP measurement information to the UE.

Embodiment 3

[0059] Such as Figure 5 As shown, when the UE moves from cell #1 to cell #2, the serving cell of the coordinated cell changes from cell #1 to cell #2, and the SINR value of the coordinated cell #3 satisfies the condition for removing the coordinated cell. The UE reports the CoMP measurement result of the removed and changed coordinated cell to the serving cell #2. At this time, the coordinated cell will undergo handover processing, and the coordinated cell will be reselected. The new serving cell will send the updated CoMP measurement information to the UE.

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Abstract

The invention discloses a coordinated multi-point system and a measurement configuration method thereof. The method includes: a serving cell configures a channel quality reporting threshold for an initially accessed UE; the UE performs channel quality measurement of adjacent cells, and sets the SINR value to be greater than or equal to the channel quality The neighbor cell that reports the threshold is reported to the serving cell; the serving cell selects a cooperative cell from the neighbor cells reported by the UE, and configures CoMP measurement information for the UE according to the selected cooperative cell; the UE performs CoMP measurement according to the CoMP measurement information, and according to the CoMP measurement As a result, the coordinated cell whose SINR value is continuously smaller than the channel quality reporting threshold is reported to the serving cell through the coordinated multi-point removal list. According to the technical solution of the present invention, the measurement configuration of the coordinated cell set in the CoMP system can be realized.

Description

technical field [0001] The present invention relates to an advanced long-term evolution system (LET-A, Long Term Evolution Advanced), in particular to a coordinated multi-point system and a measurement configuration method thereof. Background technique [0002] In an existing mobile communication system, adjacent cell interference is the main reason affecting edge throughput, and for a Long Term Evolution (LTE, Long Term Evolution) system, adjacent cell interference is particularly prominent. With the performance indicators proposed by the International Telecommunications Union (ITU, International Telecommunications Union) for the International Mobile Telecom Advanced (IMT-A, International Mobile Telecom Advanced) system, and the LTE-Advanced technology proposed by 3GPP, solving the problem of adjacent cell interference has also become a hot topic. Among them, the introduction of Cooperative Multi-Point (CoMP, Cooperative Multi-Point) technology in LTE-A is a milestone in re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/10H04W72/12
CPCH04W24/10H04B7/024
Inventor 向浩求
Owner ZTE CORP
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