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Eigenvalue decomposition precoding matrix index selection

A precoding matrix and precoder technology, applied in the directions of space transmit diversity, diversity/multi-antenna system, channel estimation, etc., can solve the problems of inpracticality and low performance of the traditional precoding matrix indication selection method

Active Publication Date: 2020-05-29
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional codebook search based precoding matrix indicator (PMI) selection methods are less and less practical due to the large codebook size
Existing implementations usually use greedy search methods to select PMIs with high complexity, resulting in low performance

Method used

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  • Eigenvalue decomposition precoding matrix index selection
  • Eigenvalue decomposition precoding matrix index selection
  • Eigenvalue decomposition precoding matrix index selection

Examples

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Embodiment Construction

[0011] Hereinafter, embodiments of the present disclosure are described in detail with reference to the accompanying drawings. It should be noted that the same elements will be denoted by the same reference numerals even though they are shown in different drawings. In the following description, specific details such as detailed configurations and components are provided only to help a comprehensive understanding of the embodiments of the present disclosure. Therefore, it will be apparent to those skilled in the art that various changes and modifications of the embodiments described herein can be made without departing from the scope of the present disclosure. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness. Terms described below are terms defined in consideration of functions in the present disclosure, and may differ according to users, users' intentions, or habits. Therefore, definitions of terms should be determined base...

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Abstract

The invention relates to eigenvalue decomposition precoding matrix index selection. A method and system for selecting precoding matrix index are herein disclosed. The method includes determining a precoder and candidate beams, selecting base beams based on a correlation power between the determined precoder and determined candidate beams, and estimating amplitude coefficients and cophase coefficients based on a correlation between the determined precoder and the selected base beams.

Description

[0001] Cross References to Related Applications [0002] This application is based on, and claims priority to, U.S. Provisional Patent Application No. 62 / 770,326, filed with the USPTO on November 21, 2018, and U.S. Patent Application No. 16 / 256,301, filed with the USPTO on January 24, 2019 , the entire contents of these two US patent applications are incorporated herein by reference. technical field [0003] The present disclosure generally relates to methods and systems for selecting precoding matrix indices. Background technique [0004] Traditional precoding matrix indicator (PMI) selection methods based on codebook search are becoming less and less practical due to the large codebook size. Existing implementations usually use greedy search methods to select PMIs with high complexity, resulting in low performance. Contents of the invention [0005] According to one embodiment, a method is provided. The method includes: determining a precoder and a candidate beam; sel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0456H04B7/06H04B7/08
CPCH04B7/0456H04B7/0695H04B7/088H04L27/2646H04B7/0478H04L27/2659H04L27/266H04L25/0204H04B7/043H04B7/0408H04B7/0639H04B7/0417
Inventor 詹祺程红兵宋基逢
Owner SAMSUNG ELECTRONICS CO LTD
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