Interference coordination method for orthogonal frequency division network

A technology of interference coordination and orthogonal frequency division, applied in the field of mobile communication, can solve problems such as system performance degradation, achieve the effect of good interference coordination and improve cell throughput

Active Publication Date: 2017-06-13
CHINA ACADEMY OF ELECTRONICS & INFORMATION TECH OF CETC
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Problems solved by technology

Due to the beamforming strategy that only considers the horizontal dimension, the downtilt angle is fixed, resulting in a decrease in system performance

Method used

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  • Interference coordination method for orthogonal frequency division network
  • Interference coordination method for orthogonal frequency division network
  • Interference coordination method for orthogonal frequency division network

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Embodiment Construction

[0017] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although the drawings show exemplary embodiments of the present disclosure, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0018] In order to improve the performance of the orthogonal frequency division network, the present invention provides an orthogonal frequency division network interference coordination method. The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the pr...

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Abstract

The invention discloses an interference coordination method for an orthogonal frequency division network. The method considers fractional frequency reuse among cells in the orthogonal frequency division network under the settings of the existing three-dimensional antenna and adopts an access point to carry out joint optimization on a downward inclination angle, carrier and available power distribution strategy, so that the total throughput capacity of the cells can be maximized and a purpose of better interference coordination is realized. A simulation result shows that compared with a joint carrier power allocation strategy adopting a fixed downward inclination angle, a fractional frequency reuse scheme and the joint optimization of the downward inclination angle, carrier and available power distribution strategy, which is provided by the embodiment of the invention, are adopted to improve the throughput capacity of the cells under the coverage of the three-dimensional antenna.

Description

Technical field [0001] The invention relates to the field of mobile communication, and in particular to an orthogonal frequency division network interference coordination method. Background technique [0002] Orthogonal frequency division multiple access technology has been widely used in next-generation communications. However, because adjacent cells reuse the same frequency resources, co-frequency interference severely restricts system performance, especially the further improvement of cell edge user performance. Therefore, it is urgent to study the corresponding interference coordination technology in the orthogonal frequency division network. [0003] Part of the frequency reuse strategy is widely used as an interference coordination technology. Using a partial frequency reuse strategy, the access points of each cell in the orthogonal frequency division network collaboration cluster can select orthogonal frequency bands on the frequency bands that edge users can use to indepe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J1/06H04J11/00H04W28/02
CPCH04J1/06H04J11/0023H04J11/005H04W28/0236Y02D30/70
Inventor 张纬栋陆洲秦智超赵晶张平牟超周春华
Owner CHINA ACADEMY OF ELECTRONICS & INFORMATION TECH OF CETC
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