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Method and device for signal processing

A signal processing and signal technology, applied in the field of signal processing, can solve the problem of poor interference suppression effect of interference suppression receivers

Active Publication Date: 2018-09-28
HUAWEI TECH CO LTD
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Problems solved by technology

[0010] In order to solve the problem that the interference suppression receiver has poor channel estimation and interference suppression effects in a strong interference environment, the embodiment of the present invention provides a signal processing method and device

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  • Method and device for signal processing
  • Method and device for signal processing
  • Method and device for signal processing

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Embodiment Construction

[0140] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0141] The present invention provides a signal processing device, referring to figure 1 As shown, the signal processing device includes: a separation module 110, an operation module 120, a projection module 130, an acquisition module 140 and an equalization module 150, wherein,

[0142] The separation module 110 is configured to separate the interference subspace corresponding to the interference noise signal and the signal subspace orthogonal to the interference subspace according to the pre-acquired statistical information of the interference noise signal, to obtain an interference suppression operator;

[0143] The calculation module 120 is used to obtain the estimated value of the equivalent channel of the data signal in the receiv...

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Abstract

The invention discloses a signal processing method and apparatus, belonging to the communication technical field. The method comprises: obtaining an interference rejection operator according to the statistic information of interference noise signals obtained in advance; calculating the equivalent channel estimated value of data signals in the received signals according to the interference rejection operator and the reference signal (RS) in the received signals received in advance; performing signal subspace projection on the data signals in the received signals according to the interference rejection operator to obtain the data signals in the signal subspace; obtaining the statistic information of residual interference noise signals in the signal subspace according to the signal subspace; and equalizing the statistic information of the residual interference noise signals, the data signals in the signal subspace, and the equivalent channel estimated value to obtain equalized signals. The signal processing method and apparatus solve the problem of poor channel estimation and interference rejection effects of an interference rejection receiver under strong interference environments, and thereby increase the interference rejection efficiency of the interference rejection receiver.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a signal processing method and device. Background technique [0002] With the development of wireless communication systems, wireless spectrum resources are gradually becoming scarce. In order to save wireless spectrum resources, the strategy of co-frequency networking is usually adopted in the cellular network of cell communication. The co-channel interference between cells is also becoming more and more serious. Conversely, the co-channel interference between cells will also hinder the increase of the number of multi-user MIMO. Therefore, in order to effectively improve system capacity, it is necessary to suppress or eliminate co-channel interference between cells. [0003] In order to suppress the same-channel interference between cells, MMSE-IRC (Minimum Mean Square Error-Interference Rejection Combining) receiver uses MMSE-IRC equalization on the received ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L25/02H04L25/03
Inventor 陈卫华
Owner HUAWEI TECH CO LTD
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