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Channel information feedback method and device, terminal and base station

A channel information, terminal technology, applied in the field of communication, can solve the problem of high terminal feedback overhead, etc.

Active Publication Date: 2018-04-06
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Embodiments of the present invention provide a channel information feedback method and device, a terminal, and a base station, so as to at least solve the problem of excessive terminal feedback overhead in the feedback of multipath weighting or linear combination in the related art

Method used

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  • Channel information feedback method and device, terminal and base station
  • Channel information feedback method and device, terminal and base station
  • Channel information feedback method and device, terminal and base station

Examples

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Embodiment 1

[0128] According to an embodiment of the present invention, an embodiment of a channel information feedback method is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and, Although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0129] The method embodiment provided in Embodiment 1 of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. Take running on a computer terminal as an example, figure 1 It is a block diagram of hardware structure of a computer terminal according to a method of the embodiment of the present invention. Such as figure 1 As shown, the computer terminal 10 may include one or more (only one is shown in the figure) processors 102 (the processors 10...

Embodiment 2

[0197] In this embodiment, a device for feeding back channel information is also provided, and the device is used to implement the above-mentioned embodiment and preferred example of the method on the terminal side, and what has already been described will not be repeated. As used below, the term "module" may be a combination of software and / or hardware that realizes a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.

[0198] Figure 4 is a structural block diagram (1) of a channel information feedback device according to Embodiment 2 of the present invention, such as Figure 4 As shown, the device is applied to terminals, including:

[0199] The first determination module 40 is configured to determine the feedback state parameters of channel information, wherein the channel information includes ...

Embodiment 3

[0226] In order to better understand the technical solutions in the foregoing embodiments, this embodiment also provides a terminal. Figure 6 is a schematic structural diagram of a terminal according to Embodiment 3 of the present invention, such as Figure 6 As shown, the terminal includes: a first processor 60; a first memory 62 for storing instructions executable by the first processor 60; the first processor 60 is used for performing the following operations according to the instructions stored in the first memory 62 :

[0227] Determine the feedback state parameters of channel information, where the channel information includes at least one of the following: M precoding vectors v 1 , v 2 ,...,v M , G amplitude coefficients A 1 , A 2 ,...,A G , K phase coefficients P 1 , P 2 ,...,P K , M, G, K are all integers greater than or equal to 0;

[0228] Channel information is fed back according to the determined feedback state parameter.

[0229] Through the above-men...

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PUM

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Abstract

The invention provides a channel information feedback method and device, a terminal and a base station. The method comprises the steps that: the terminal determines feedback state parameters of channel information, wherein the channel information comprises at least one of the follows: M precoding vectors v1, v2, ..., vM, G amplitude coefficients A1, A2, ..., AG, k phase coefficients P1, P2, ..., PK, and M, G and K are all integers greater than or equal to 0; and the terminal feeds back the channel information according to the determined feedback state parameters. A problem of excessively highterminal feedback cost in the multi-path weighting or linear combination feedback in the related art is solved, the terminal can carry out feedback of the channel information in a more targeted mode,pilot frequency cost is reduced, feedback efficiency is improved, and resources are saved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a channel information feedback method and device, a terminal, and a base station. Background technique [0002] In a wireless communication system, the transmitting end and the receiving end generally use multiple antennas to transmit and receive to obtain a higher rate. One principle of multiple-input-multiple-output (MIMO) technology is to use some characteristics of the channel to form multi-layer transmission that matches the characteristics of the channel, so as to effectively improve system performance without increasing bandwidth and It is a very promising technology that is widely used in current systems to obtain significant performance improvement on the basis of power. For example, in the Long Term Evolution (referred to as LTE) and its enhanced version Long Term Evolution-Advanced (referred to as LTE A) system, there are multiple transmission modes of multi-antenna ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04B7/0417
CPCH04B7/0417H04B7/0626H04B7/0636H04B7/0658H04B7/0478H04B7/0634H04B7/0639H04B7/063H04B7/0848H04L1/0073H04L1/00H04B7/06
Inventor 吴昊蔡剑兴李儒岳陈艺戬鲁照华肖华华李永王瑜新
Owner ZTE CORP
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