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Reporting method, reading method and related equipment of channel state information

A technology for channel state information and measurement methods, applied in the field of reading methods and related equipment, and reporting methods for channel state information, which can solve the problems of increased resource overhead for reference signals, etc.

Active Publication Date: 2021-01-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As the number of antenna ports continues to increase, the overhead of reference signal resources in the type A CSI process also increases accordingly

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  • Reporting method, reading method and related equipment of channel state information
  • Reporting method, reading method and related equipment of channel state information
  • Reporting method, reading method and related equipment of channel state information

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Embodiment Construction

[0065] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0066] Each will be described in detail below.

[0067] The terms "first", "second", "third" and "fourth" in the description and claims of the present invention and the drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "include" and "have", as well as any variatio...

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Abstract

The present invention discloses a method for reporting channel state information, comprising: a terminal determines R first precoding matrix indication PMIs of M first reference signal resources, and determines a channel quality indication CQI according to the R first PMIs, The M and the R are integers greater than or equal to 1; the terminal reports channel state information, the channel state information includes the R first PMIs and N CQIs, or the channel state information includes the R first PMIs and one CQI, the R first PMIs are used by the base station to determine P second PMIs according to the first calculation criterion, the latitude of the second PMI is higher than the dimension of the first PMI, the P and the N are integers greater than or equal to 1. The embodiment of the present invention also provides a method for reading channel state information and related equipment. Using the embodiments of the present invention can reduce the overhead of reference signal resources in a CSI process.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for reporting channel state information, a reading method and related equipment. Background technique [0002] Channel State Information Reference Signal (CSI-RS) is used for channel state information measurement in the 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) system the reference signal. In order to further improve spectrum efficiency, the current LTE R13 standard introduces more antenna configurations, especially antenna configurations with more than 8 antenna ports based on Active Antenna Systems (AAS). For example, the number of antenna ports may be 16, 32 or 64. [0003] In the prior art, CSI reporting type A and CSI reporting type B are supported at the same time, wherein the CSI measurement in CSI reporting type A is based on non-beamforming CSI-RS resources, and the CSI measurement in CSI reporting type B is based on beamformin...

Claims

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Application Information

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IPC IPC(8): H04L1/06
CPCH04L1/06H04B7/0456H04B7/0639H04B7/0486H04B7/0626H04L1/0026H04B7/0479H04B7/0617H04B7/0645H04B17/309H04B17/373H04B7/0473H04B7/063H04L5/0057
Inventor 刘建琴张瑞齐
Owner HUAWEI TECH CO LTD