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Codebook information feedback method, terminal and network equipment

A codebook information and codebook technology, applied in the field of codebook information feedback method, terminal and network equipment, can solve the problem of large feedback overhead of CSI codebook, and achieve the effect of reducing feedback overhead

Active Publication Date: 2020-05-19
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Embodiments of the present invention provide a codebook information feedback method, a terminal, and a network device to solve the problem of high CSI codebook feedback overhead

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  • Codebook information feedback method, terminal and network equipment
  • Codebook information feedback method, terminal and network equipment
  • Codebook information feedback method, terminal and network equipment

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] The term "comprising" and any variations thereof in the description and claims of this application are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device comprising a series of steps or units is not necessarily limited to the explicit instead of those steps or elements explicitly listed, other steps or elements not explicitly listed or inherent to the process, method, product or apparatus may b...

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Abstract

Embodiments of the present invention provide a codebook information feedback method, a terminal and network equipment, the method comprising: feeding back codebook information of a CSI codebook, wherein the CSI codebook comprises a spatial beam vector matrix, a compression coefficient matrix and at least one compression vector, an element in the compression coefficient matrix is a quantized valueof a compression coefficient, and the compression coefficient is a coefficient obtained by compressing a combined coefficient or the compression coefficient is a coefficient obtained by compressing asampling combination coefficient, and the sampling combination coefficient is a combination coefficient of partial frequency domain granularity or the compression coefficient comprises a coefficient obtained by compressing the combined coefficient and then sampling, and the codebook information comprises spatial beam vector information contained in the spatial beam vector matrix, elements of the compression coefficient matrix and vector information of the at least one compression vector. According to the embodiment of the invention, the feedback overhead of the CSI codebook can be reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a codebook information feedback method, terminal and network equipment. Background technique [0002] In the New Radio (NR) system, the channel state information (Channel State Information, CSI) codebook feedback is enhanced, and the CSI codebook feedback has two types: Type 1 (Type I) and Type 2 (Type II). Among them, the Type II feedback method adopts the linear combination (Linear Combination, LC) of space orthogonal basis, which essentially compresses in the space domain, that is, the combination coefficient matrix W of the CSI codebook 2 is the combined coefficient matrix compressed in the spatial domain, although the compression is performed in the spatial domain, the feedback overhead of the CSI codebook is still relatively large. Contents of the invention [0003] Embodiments of the present invention provide a codebook information feedback method, a term...

Claims

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Application Information

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IPC IPC(8): H04B7/0456H04L5/00
CPCH04B7/0456H04B7/0478H04L5/0053
Inventor 宋扬孙鹏
Owner VIVO MOBILE COMM CO LTD
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