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A Multi-Interference Cooperative Interference Alignment Method Based on Two-way Interference Signal Adjustment

A technology of jamming signals and cooperative interference, applied in baseband systems, baseband system components, diversity/multi-antenna systems, etc., can solve communication performance degradation and other problems, and achieve the effects of reducing damage, improving spectrum efficiency, and improving transmission performance

Active Publication Date: 2020-12-29
政务和公益机构域名注册管理中心
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Problems solved by technology

This technology needs to generate a neutralization signal to cancel part of the interference, resulting in additional power overhead, and for the interference that needs to be processed by alignment, its communication performance will be reduced

Method used

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  • A Multi-Interference Cooperative Interference Alignment Method Based on Two-way Interference Signal Adjustment
  • A Multi-Interference Cooperative Interference Alignment Method Based on Two-way Interference Signal Adjustment
  • A Multi-Interference Cooperative Interference Alignment Method Based on Two-way Interference Signal Adjustment

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Embodiment Construction

[0044]In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0045]The present invention not only uses the cooperation between base stations, but also uses the interaction relationship between signals to achieve alignment. By adjusting some interference signals, the overall effect of multi-interference is aligned, and the management of multi-interference is mainly solved, and the traditional interference alignment causes interference communication to itself. The transmission signal does not match the channel, thereby reducing its communication performance.

[0046]The application principle of the present invention will be described in detail below with reference to the accompanying drawings....

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Abstract

The invention belongs to the technical field of wireless communication, and discloses a multi-interference cooperative interference alignment method based on two-path interference signal adjustment. Achannel state and data information are shared between transmitters; a pre-coding vector and a filtering vector are designed for a target communication pair and an interference communication pair respectively; the interference communication transmitters multiply two-path interference signal vectors in multiple interferences by a complex domain coefficient, so that effective interferences after overall equivalence of the multiple interferences are orthogonal to expected signals of target communications, and cooperative interference alignment is realized; the interference communication transmitters transmit the signals subjected to complex domain coefficient adjustment; and target communication receivers recover expected data. According to the method, one path of the effective interferencesis adopted for aligning equivalent interference signals to directions orthogonal to the expected signals of the target communications; the power overhead is not increased, and the degree-of-freedom consumption of traditional interference alignment is reduced, so that the method can be used for homologous multi-interference processing; and the influence of the interference alignment on the interference communication can be reduced, so that the spectrum efficiency is improved.

Description

Technical field[0001]The invention belongs to the technical field of wireless communication, and in particular relates to a multi-interference cooperative interference alignment method based on two-channel interference signal adjustment.Background technique[0002]At present, the existing technology commonly used in the industry is as follows: With the rapid development of wireless communication technology, people's demand for data transmission continues to increase, and there will be a large number of users and data connections in a limited area. On the one hand, technical personnel strive to find efficient resource utilization methods, on the other hand, they also realize that interference has become an important factor restricting the improvement of network performance. Therefore, the importance of interference management technology has become increasingly prominent. The existing interference management methods include Zero-forcing Beamforming (ZFBF), Zero-forcing (ZF) reception, I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/03
CPCH04B7/024H04B7/0456H04L25/03343H04L25/0391
Inventor 肖丽媛刘英厚滕芸芸王睿李钊
Owner 政务和公益机构域名注册管理中心
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