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Pre-coding method and pre-coding device for multi-point coordinated transmission

A multi-point cooperative and pre-coding technology, which is applied in the field of pre-coding methods and devices for multi-point cooperative transmission, can solve the problems of cumbersomeness, complex precision, and low practicability, and achieve the effect of simplifying the coding process and improving the coding accuracy

Active Publication Date: 2013-03-27
如东县东广物流有限公司
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Problems solved by technology

It can be seen that although the above method can realize CoMP for inter-cell interference coordination in the terminal airspace, since the precoding method used in this method is a codebook optimization method, the process of implementing CoMP precoding is very cumbersome, and the accuracy Not high, not very practical
[0005] Aiming at the problem that the methods for realizing CoMP precoding in related technologies are relatively complex and have low precision, no effective solution has been proposed yet

Method used

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  • Pre-coding method and pre-coding device for multi-point coordinated transmission
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  • Pre-coding method and pre-coding device for multi-point coordinated transmission

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Embodiment Construction

[0028] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0029] figure 1 is a flowchart of a precoding method for coordinated multi-point transmission according to an embodiment of the present invention, such asfigure 1 As shown, the method mainly includes the following steps (step S102-step S106):

[0030] Step S102, obtaining the desired sub-precoding codeword of the first user terminal;

[0031] Step S104, obtaining the leaked sub-precoding codeword of the second user terminal;

[0032] Step S106, obtaining the precoding of the first user terminal according to the expected sub-precoding codeword and the leaked sub-precoding codeword.

[0033] In the embodiment of the present invention, before obtaining the expected sub-precoding codeword of the first...

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Abstract

The invention discloses a pre-coding method and a pre-coding device for multi-point coordinated transmission. The pre-coding method includes acquiring code words of expected pre-subcodes of a first user terminal; acquiring code words of revealed pre-subcodes of a second user terminal; and obtaining pre-codes of the first user terminal according to the code words of the expected pre-subcodes and the code words of the revealed pre-subcodes. The pre-coding method and the pre-coding device have the advantages that a tedious procedure of the traditional pre-coding mode can be simplified, and the pre-coding precision is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a precoding method and device for coordinated multi-point transmission. Background technique [0002] In the LTE-A (Long Term Evolution-Advanced, Advanced Long Term Evolution) system under 3GPP (Third Generation Partnership Project, Third Generation Partnership Project), CoMP (Coordinated Multiple Point, coordinated multi-point transmission) technology can be used as a The technology of solving inter-cell interference to improve cell edge and cell spectrum utilization efficiency has been studied in depth in LTE R10, but due to time factors, many designs in this technology are simplified, resulting in the final addition of CoMP-compatible channel state information. The frequency design continues to be studied in LTE R10, and other designs are put into LTE R11 and later versions for research. [0003] In most cases, it is difficult for users located at the edge of a cell to avoid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04L25/02
Inventor 王衍文刘文豪王永强
Owner 如东县东广物流有限公司
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