Method, apparatus for channel state information feedback and storage medium
US-2021328646-A1 · Oct 21, 2021 · US
Channel feedback method and related device
US11265045B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11265045-B2 |
| Application number | US-202016811002-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 6, 2020 |
| Priority date | Sep 8, 2017 |
| Publication date | Mar 1, 2022 |
| Grant date | Mar 1, 2022 |
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Abstract
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A method in the embodiments of this application includes: generating, by a terminal device, first information, where the first information includes parameters q, m 1 , m 2 , . . . , m L , and indication information of a vector V; q is an integer, and q<Q; Q is an integer, and Q>1; 0≤m l ≤N−1, and 1≤l≤L; L>1, N, L, and l are integers, and N is a quantity of subbands in a frequency domain bandwidth; and the vector V includes L elements and satisfies V=F q ×C, where C is a vector formed by N elements c 1 , . . . , c N , C=[c 1 c 2 . . . c N ] T , c k is used to indicate channel state information on a k th frequency domain subband, c k is a complex number, a modulus of c k is |c k |≤1, and 1≤k≤N; and sending, by the terminal device, the first information to a network device.
First claim
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What is claimed is: 1. A method, comprising: generating, by a terminal device, first information, wherein the first information comprises parameters q, m 1 , m 2 , . . . , m L , and indication information of a vector V, q is an integer less than Q, Q is an integer greater than 1, 0≤m l ≤N −1, 1≤l≤L, L is greater than 1, N, L, and l are integers, N is a quantity of subbands in a frequency domain bandwidth, the vector V comprises L elements and satisfies V=F q ×C, C is a vector of N elements c 1 , . . . , c N , C=[c 1 c 2 . . . c N ] T , c k indicates channel state information on a k th frequency domain subband, c k is a complex number, a modulus of c k is less than or equal to 1, 1≤k≤N, and an l th row vector in a matrix F q satisfies: F q ( l ) = [ 1 e j 2 π ( m l × Q + q ) N × Q … e j 2 π ( m l × Q + q ) N × Q ( N - 1 ) ] ; or F q ( l ) = [ 1 e - j 2 π ( m l × Q + q ) N × Q … e - j 2 π ( m l × Q + q ) N
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Classifications
Special codebook structures directed to feedback optimisation · CPC title
codebook-based design (selection of codebook or precoding matrix for MIMO diversity systems H04B7/0456) · CPC title
- H04B7/0626Primary
Channel coefficients, e.g. channel state information [CSI] · CPC title
in wireless communication networks · CPC title
Arrangements at the transmitter end · CPC title
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- What does patent US11265045B2 cover?
- A method in the embodiments of this application includes: generating, by a terminal device, first information, where the first information includes parameters q, m 1 , m 2 , . . . , m L , and indication information of a vector V; q is an integer, and q<Q; Q is an integer, and Q>1; 0≤m l ≤N−1, and 1≤l≤L; L>1, N, L, and l are integers, and N is a quantity of subbands in a frequency domain bandwid…
- Who is the assignee on this patent?
- Huawei Tech Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04B7/0626. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 01 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).