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Uplink multipoint collaboration implementing method combining inter-cell interference coordination

A technology of inter-cell interference and multi-point coordination, applied in diversity/multi-antenna systems, location diversity, network planning, etc., can solve problems such as inter-cell interference, waste of frequency resources, and non-support of multi-point coordination, etc., to ensure compatibility , improve performance, and simplify the effect of the frequency band division process

Inactive Publication Date: 2009-07-15
XIDIAN UNIV
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AI Technical Summary

Problems solved by technology

[0005] The problem with this solution is that not all users and services want to adopt the coordinated multi-point mode; Performance gains can be obtained, but for situations that do not support coordinated multi-point, it will bring a lot of inter-cell interference, which is especially serious for cell edge users
[0011] 1. The frequency band required by CoMP users cannot be used by the central user. If there are no coordinated multi-point users in the system or the cell does not support coordinated multi-point, frequency resources will be wasted;
[0012] 2. Dedicated frequency bands need to be allocated, which is not fully compatible with ICIC and CoMP solutions

Method used

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Embodiment Construction

[0046] see Figure 6 , the concrete steps of the inventive method are as follows:

[0047] 1) The station judges whether the user is an edge user or a central user by measuring the user's SINR, and allocates the working frequency band used by the user according to the frequency band division method of ICIC;

[0048] 2) The user sends data to the cell according to the allocated working frequency band, regardless of whether the cell where the user is located and the neighboring cells support CoMP;

[0049] 3) Determine whether the user’s cell and its service support CoMP through the station or base station. If CoMP is not supported, the data sent by the user will be processed in the traditional way, and the data will be extracted by linear or nonlinear detection methods. If CoMP is supported, then enter the step 4);

[0050] 4) If the user in step 3) is in the cell and its service supports CoMP, then the CoMP is divided into three situations, namely:

[0051] 4.1) When the ce...

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Abstract

The invention relates to a realization method for the uplink multipoint cooperation (CoMP) combining with inter-cell interference coordination (ICIC), which comprises the following steps: 1) a site measures the SINR of the user to judge whether the user is a marginal user or a central user and distributes the working frequency band of the user based on ICIC frequency band classification method; 2) the user sends data to the cell according to the distributed working frequency band; 3) the site judges whether the site or the business of the user supports CoMP; if CoMP is not supported, the data is extracted by a linear or nonlinear method; if CoMP is supported, step 4) is followed; 4) the cell receives the sent data and processes the data. The method ensures the compatibility of CoMP and ICIC proposals, which can improve the marginal throughput of the cell and the average throughput of the system.

Description

technical field [0001] The invention belongs to the field of mobile communication. It relates to an uplink multi-point coordinated implementation method combined with inter-cell interference coordination. On the basis of inter-cell interference coordination, through multi-point coordination between multiple cells, 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 a 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 (Long Term Evolution-Advanced, which can be abbreviated as LTE-A) incorporates CoMP (Coordinated Multi Point Transmission and Reception , coordinated multi-point) technology is listed as one of its important candidate technologies, and its main ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/02H04W16/14H04B1/707H04B1/12
CPCH04B7/026
Inventor 李晓辉薛鑫季清
Owner XIDIAN UNIV
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