Supercharge Your Innovation With Domain-Expert AI Agents!

A method and device for determining a precoding matrix

A technology of precoding matrix and feedback matrix, which is applied in the field of communication, can solve problems such as unbalanced beam coverage performance, and achieve the effect of solving unbalanced beam coverage performance

Active Publication Date: 2021-09-07
HUAWEI TECH CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The embodiment of the present invention provides a method for determining the precoding matrix, which is used to solve the defect of unbalanced beam coverage performance in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method and device for determining a precoding matrix
  • A method and device for determining a precoding matrix
  • A method and device for determining a precoding matrix

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0119] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. 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.

[0120] refer to figure 1 As shown, in the embodiment of the present invention, a method for determining the precoding matrix is ​​proposed, and the process is as follows:

[0121] Step 100: The terminal determines a precoding matrix, the precoding matrix includes at least two sets of column vectors, there is a column vector associated with any one of the at least two sets of column vectors in the at least two sets of column vectors, and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method and device for determining a precoding matrix: a terminal determines a precoding matrix, the precoding matrix includes at least two sets of column vectors, and at least two sets of column vectors are related to any set of column vectors in the at least two sets of column vectors Linked column vectors, any set of column vectors and associated column vectors act on different polarized antennas; the terminal determines the first precoding matrix indicator PMI and the second PMI according to the precoding matrix; the terminal uses the first PMI and the second PMI The PMI is sent to the base station. In this solution, different column vectors are used for different polarizations. Therefore, the defect of unbalanced beam coverage performance in the prior art is solved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for determining a precoding matrix. Background technique [0002] In an LTE (Long Term Evolution, Long Term Evolution) system, for cell edge users, a SFBC (Space Frequency Block Code, Space Frequency Block Code) transmission mode is used to improve the cell edge signal-to-noise ratio. For users in the center of the cell, the transmission mode of multi-layer parallel transmission is adopted to provide a higher data transmission rate. Wherein, if the base station can obtain all or part of the downlink channel information, the base station can use a precoding (Precoding) technology to improve signal transmission quality or rate. For a TDD (Time Division Duplexing, Time Division Duplexing) system, the uplink and downlink of the wireless channel are mutually different, and the precoding weight vector of the downlink channel can be estimated accordin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06
CPCH04B7/0456H04B7/06H04B7/0478H04B7/0486H04B7/0639
Inventor 张瑞齐吴强
Owner HUAWEI TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com