United scheduling method for ascending multi-point collaboration in LTE-A

A multi-point cooperative and joint scheduling technology, applied in network traffic/resource management, electrical components, wireless communication, etc., to solve problems such as capacity loss

Inactive Publication Date: 2009-05-27
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although interference suppression can be used to extract user data, this will also bring a large capacity loss

Method used

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  • United scheduling method for ascending multi-point collaboration in LTE-A
  • United scheduling method for ascending multi-point collaboration in LTE-A
  • United scheduling method for ascending multi-point collaboration in LTE-A

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Experimental program
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Embodiment Construction

[0056] see image 3 , the present invention comprises the following steps:

[0057] 1) Select the users and their types participating in the scheduling according to the channel state, that is, determine the cooperative and non-cooperative users;

[0058] 2) Coordinated user scheduling in the cell;

[0059] 3) Joint scheduling of coordinated users between cells;

[0060] 4) Scheduling of non-cooperative users in the cell.

[0061] see Figure 4 , the method for determining cooperative and non-cooperative users of the present invention is as follows:

[0062] 1.1) Determine the user set participating in the scheduling, the user set can be expressed as: {K 1 , K 2 , K 3 , K 4 ...K M};

[0063] 1.2) According to the measurement of the reference signal strength, judge the user type: cooperative or non-cooperative; wherein the cooperative user can be expressed as: {C 1 , C 2 , C 3 , C 4 ,...,C M1}, non-cooperative users can be expressed as: {E 1 ,E 2 ,E 3 ,E 4 ......

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Abstract

The invention relates to a combined dispatching method for uplink multi-point cooperation in LTE-A. The method comprises following steps: 1) determining cooperative and non-operative dispatching user; 2) dispatching of cooperative user in cell; 3) combined resource dispatching for cooperative user of cell; 4) dispatching for non-cooperative user of cell. The invention adopts stepping optimizing method in cell or intercell, and simultaneously considers user dispatching priority and channel relation in combined dispatching in cell, reduces interference between users of shared frequency cooperation, promotes throughout of whole system while guaranteeing user fairness and possesses low computation complexity.

Description

technical field [0001] The invention belongs to the field of mobile communication, and relates to an uplink multi-point coordinated joint scheduling method in LTE-A. By adopting joint resource scheduling of intra-cell and inter-cell cooperative users, the uplink throughput of cell edge users is greatly improved. Background technique [0002] In the current LTE (Long Term Evolution, 3G Long Term Evolution), the throughput of users at the edge of a cell is much lower than that of users in the central area. In order to increase the data rate transmitted by cell edge users, as well as improve the throughput and average throughput efficiency of the entire system, LTE-Advanced (LongTermEvolution-Advanced, abbreviated as LTE-A) incorporates CoMP (CoordinatedMultiPointTransmissionandReception, coordinated multi-point) technology Listed as one of its important candidate technologies, it mainly improves cell edge throughput through inter-cell cooperation. [0003] Coordinated multi-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04W28/00
Inventor 李晓辉薛鑫任敏季清
Owner XIDIAN UNIV
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