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Method for detecting signals in multi-antenna communication system and receiver

A technology for signal detection and communication systems, applied in diversity/multi-antenna systems, error prevention/detection through diversity reception, baseband system components, etc. Effect

Active Publication Date: 2014-06-11
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual communication system, the background noise is not ideal, usually including white noise and colored interference, so the existing technology idealizes the background noise, so that there is a large deviation between the estimated value of the transmitted signal and the expected signal

Method used

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  • Method for detecting signals in multi-antenna communication system and receiver
  • Method for detecting signals in multi-antenna communication system and receiver
  • Method for detecting signals in multi-antenna communication system and receiver

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] Figure 1b It is a flow chart of a method for signal detection in a multi-antenna communication system provided by an embodiment of the present invention. like Figure 1b The methods shown include:

[0032] Step 11: at least two receiving antennas of the receiving end receive the transmission signal transmitted by the transmitting end, and obtain at least two receiving signals.

[0033] After receiving the transmitting signal, at least two receiving ...

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Abstract

The invention provides a method for detecting signals in a multi-antenna communication system and a receiver. The method comprises the following steps of: receiving transmitted signals transmitted from an transmitting end by at least two receiving antennae of a receiving end to obtain at least two received signals; determining a channel matrix and an estimation error covariance matrix of the transmitted signals; whitening and prefiltering the received signal vectors to obtain received signal result vectors; and detecting the transmitted signals according to the channel matrix, the estimation error covariance matrix and the received signal result vectors. In the method, on the premise that background noise such as white noise, colored interference and the like exists in the multi-antenna communication system, calculation complexity in signal detection is lowered.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a method and receiver for signal detection in a multi-antenna communication system. Background technique [0002] A wireless communication system with a space-time architecture using multiple antenna arrays at both the transmitter and receiver such as Figure 1a shown. In this system, the number M of transmitting antenna elements is at least 2, and the number N of receiving antenna elements is at least M. transmit signal 1 ,...,s M are respectively transmitted through M different transmitting antenna units a-1,...,a-M; the corresponding received signal x 1 ,...,x N Receive from N different receiving antenna units b-1,...,b-N respectively. Figure 1a The summation components c-1, c-2, ..., c-N are also shown in , which represent the unavoidable noise signal w 1 ,w 2 ,...,w N , these noise signals are respectively added to the received sig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/06H04B7/04H04L25/02
Inventor 朱胡飞
Owner HUAWEI TECH CO LTD