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Inter-cell resource management and cooperative transmission method based on ultra-dense cellular network

A cellular network and cooperative transmission technology, applied in the field of ultra-dense networking, can solve problems such as interference at the same layer, and achieve the effects of improving performance, eliminating interference at the same layer, and increasing total throughput

Active Publication Date: 2019-07-19
XI AN JIAOTONG UNIV
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  • Description
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  • Application Information

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Problems solved by technology

However, with the densification of small base stations and the random deployment of cells, more interference will be brought about. With the densification and irregularity of small base stations, many adjacent cells will be generated. In addition to The cross-layer interference of is also affected by the same-layer interference of adjacent small base stations

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  • Inter-cell resource management and cooperative transmission method based on ultra-dense cellular network
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  • Inter-cell resource management and cooperative transmission method based on ultra-dense cellular network

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Embodiment Construction

[0045] The present invention will be further described below in conjunction with drawings and embodiments.

[0046] see figure 1 As shown, the present invention is based on a resource management and cooperative transmission method between cells in an ultra-dense cellular network. In this method, there are 3 adjacent hexagonal sectors in the center of each macro base station, and in each sector, evenly distributed N small base stations and K users are uniformly and randomly distributed in each cell. Specific steps are as follows:

[0047] 1) In the user cell selection criteria, a positive offset value is artificially added to the reference signal received power of the small base station, while the received power of the reference signal of the macro base station does not increase the offset value. After the user selects the serving base station, the definition from the macro base station A user joining a small base station is a CRE user.

[0048] Among them, consider a two-la...

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Abstract

The present invention is based on a method for resource management and cooperative transmission between cells in an ultra-dense cellular network. In this method, there are three adjacent hexagonal sectors in the center of each macro base station, and N small base stations are evenly distributed in each sector. , and at the same time, K users are evenly and randomly distributed in the coverage area of ​​each macro base station; according to whether there are adjacent base stations for CRE users, select adjacent small base stations for cooperative transmission or macro base station transmission, and small base stations improve their transmission in scheduling CRE user resources. Power, reduce the impact of cross-layer interference from macro base stations, and obtain the optimal small base station power improvement factor by maximizing the total throughput of the system. The average throughput performance of the cell edge user (CRE) of the present invention is significantly improved compared with the traditional benchmark scheme, and the total average throughput performance of the system is also improved to a certain extent.

Description

[0001] Technology Neighborhood: [0002] The invention relates to an ultra-dense networking technology in the neighborhood of 5G mobile communication technology, in particular to a resource management and cooperative transmission method between cells in an ultra-dense cellular network. [0003] Background technique: [0004] According to the latest market analysis and forecast, for 2020 and the future, mobile data traffic will experience explosive growth. It is estimated that the global mobile data traffic will increase by more than 200 times from 2010 to 2020. The ultra-dense cell network will be the main technical means to meet the demand for mobile data traffic in 2020 and in the future. The ultra-dense cell can bring users closer to the base station to obtain better signal performance through a more "dense" wireless network infrastructure deployment. Higher spectrum reuse efficiency can be obtained, thereby achieving a hundred-fold increase in system capacity in local hotsp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/024H04W48/20H04W52/40H04W72/12
CPCH04B7/024H04W48/20H04W52/40H04W72/542
Inventor 王霞陈新桥王鑫
Owner XI AN JIAOTONG UNIV
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