Method and device for acquiring precoding matrix

Inactive Publication Date: 2013-03-14
MASON LICENSING LLC
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  • Abstract
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Benefits of technology

[0016]In the embodiments of the present invention, for each receiving end, the interference vectors to be aligned are all represented as a linea...

Problems solved by technology

In the prior art, each transmitting end centralizes the interferences from all other transmitting ends to the signal spaces that can be pr...

Method used

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  • Method and device for acquiring precoding matrix
  • Method and device for acquiring precoding matrix
  • Method and device for acquiring precoding matrix

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Embodiment Construction

[0022]The technical solutions of the embodiments of the present invention will be clearly and completely described as follows with reference to the drawings. Apparently, the described embodiments are just a part of embodiments of the present invention rather than all the embodiments. Based on the embodiments of the present invention, any other embodiment obtained by a person skilled in the art without paying a creative effort will fall within the protection scope of the present invention.

[0023]Referring to FIG. 1, an embodiment of the present invention provides a method for acquiring a precoding matrix, including:

[0024]101: for each receiving end, selecting interference vectors as interference space basis vectors from whole interference vectors, and representing remaining interference vectors as a linear combination of the interference space basis vectors, wherein the remaining interference vectors are the interference vectors in the whole interference vectors of the receiving end e...

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Abstract

A method and device for acquiring a precoding matrix are provided by the present invention. The method for acquiring a precoding matrix includes: for each receiving end, selecting the interference vectors as the interference space basis vectors from whole interference vectors, representing the remaining interference vectors as the linear combination of the interference space basis vectors, wherein the remaining interference vectors are the interference vectors in the whole interference vectors of the receiving end except the interference vectors which act as the interference space basis vectors (101); determining the currently used precoding matrix according to the linear combination of the interference space basis vectors represented by the remaining interference vectors of each receiving end and the current channel condition (102). The technical solution of the present invention can eliminate interference and do not generate Bit Error Rate (BER) floor.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is a continuation of International Patent Application No. PCT / CN2011 / 073733, filed on May 6, 2011, which claims priority to Chinese Patent Application No. 201010168681.4, filed on May 7, 2010, both of which are hereby incorporated by reference in their entireties.FIELD OF TECHNOLOGY[0002]The present invention relates to the field of communication technology, and particularly, to a method for acquiring a precoding matrix and a device therefore.BACKGROUND OF THE INVENTION[0003]The Multi Input Multi Output (MIMO) technology is a significant breakthrough of the smart antenna technology in the field of wireless mobile communication. The MIMO technology can improve the communication system capacity and the spectrum efficiency exponentially without increasing the bandwidth, and it is the key technology applied to the new generation of mobile communication system. Both the transmitting end and the receiving end of the MIMO system ...

Claims

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Application Information

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IPC IPC(8): H04B7/06H04B7/08
CPCH04B7/0634H04B7/046H04B7/0663
Inventor LIU, SHENGDU, YINGGANG
Owner MASON LICENSING LLC
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