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Precoding matrix generation method and precoding matrix generation device

A technology of precoding matrix and generating device, applied in wireless field

Active Publication Date: 2019-07-12
CHINA MOBILE COMM LTD RES INST +1
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  • Description
  • Claims
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Problems solved by technology

To sum up, it is still a problem to be solved how to obtain a high spectral efficiency performance in the case of a high spectral efficiency scheme that cannot obtain a perfect CSIT

Method used

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  • Precoding matrix generation method and precoding matrix generation device
  • Precoding matrix generation method and precoding matrix generation device
  • Precoding matrix generation method and precoding matrix generation device

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Embodiment Construction

[0053] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0054] Embodiments of the present invention can provide a method for generating a precoding matrix and a device for generating a precoding matrix in transmit diversity and MU-MIMO hybrid transmission modes.

[0055] Embodiments of the present invention firstly provide a method for generating a precoding matrix, such as figure 1 shown, including:

[0056] Step 101: Select a preset number of transmitting antenna ports from multiple transmitting antenna ports at the transmitting end to form a subset of transmitting antenna ports;

[0057] Step 102: Calculating a first multi-user MIMO preprocessing matrix used by users on the transmit antenna port subset of the first resource;

[0058] Step 103: Obtain a second multi-user MIMO preprocess...

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Abstract

The invention provides a precoding matrix generation method and a precoding matrix generation device, and the method comprises the steps: selecting a preset number of transmitting antenna ports from aplurality of transmitting antenna ports of a transmitting end, and forming a transmitting antenna port subset; calculating a first multi-user multi-input multi-output preprocessing matrix used by a user on a sending antenna port subset of the first resource; obtaining a second multi-user multi-input multi-output preprocessing matrix used by a user on a sending antenna port subset of a second resource according to the first multi-user multi-input multi-output preprocessing matrix; and according to the first multi-user multi-input multi-output pre-processing matrix and the second multi-user multi-input multi-output pre-processing matrix, obtaining a pre-coding matrix used by the user in a hybrid transmission mode on a plurality of transmitting antenna ports. The precoding matrix generationscheme provided by the invention is suitable for a multi-user multi-input multi-output scene.

Description

technical field [0001] The present invention relates to the field of wireless technologies, in particular to a method for generating a precoding matrix and a device for generating a precoding matrix. Background technique [0002] With the development of global high-speed rail technology, my country's high-speed rail has also achieved rapid development. By the end of 2016, the operating mileage of my country's high-speed rail has reached 22,000 kilometers, with more than 5 billion passengers. On rail transit stations and lines, the mobile phone data traffic of passengers is positively correlated with the time in transit. It is predicted that the annual data traffic in the high-speed rail scenario will exceed 2 trillion MB. Therefore, high-speed rail communication has developed into a very important mobile communication scenario in China and even in the world. [0003] MIMO (Multiple-Input Multiple-Output, multiple input multiple output) transmission mode is TM2 (transmissio...

Claims

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Application Information

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IPC IPC(8): H04B7/0452H04B7/0456
CPCH04B7/0452H04B7/0456
Inventor 王森韩双锋左君徐国珍
Owner CHINA MOBILE COMM LTD RES INST
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