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Precoding matrix indication method, communication device and storage medium

A technology of precoding matrix and indicating information, which is applied in the field of communication, can solve the problems of affecting data transmission, unable to demodulate information bits, and unable to determine the number of Part2CSI bits of non-zero broadband amplitude coefficients, etc., to achieve the effect of data transmission

Pending Publication Date: 2022-08-05
HUAWEI TECH CO LTD
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Problems solved by technology

[0005] However, in the CSI compression technique, the terminal equipment is for each W 2 The coefficients in Part1 are reported after secondary screening. Therefore, through the existing CSI reporting method, the W reported in Part1 CSI 2 The number of non-zero broadband amplitude coefficients cannot determine the number of bits of Part2 CSI, so the base station cannot demodulate the information bits of part2 CSI according to the information in part1 CSI, thus affecting data transmission

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  • Precoding matrix indication method, communication device and storage medium
  • Precoding matrix indication method, communication device and storage medium
  • Precoding matrix indication method, communication device and storage medium

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Embodiment Construction

[0109] The terms used in the embodiments of the present application are only used to explain specific embodiments of the present application, and are not intended to limit the present application.

[0110] The embodiments of the present application may be applied to various types of communication systems. figure 1 This is a schematic diagram of an application scenario provided by the embodiment of the present application. like figure 1 The communication system shown mainly includes network equipment 11 and terminal equipment 12 .

[0111] Among them, 1) the network device 11 may be a network side device, for example, a wireless fidelity (Wireless-Fidelity, WIFI) access point AP, a base station for next-generation communication, such as a 5G gNB or a small cell, a micro cell, a transceiver node (Transmission Reception point, TRP), it can also be a relay station, an access point, a vehicle-mounted device, a wearable device, etc. In this embodiment, the base stations in the co...

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Abstract

The embodiment of the invention provides a pre-coding matrix indication method, a communication device and a storage medium, the pre-coding matrix of each frequency domain unit of K frequency domain units satisfies W = W1 * W2, and elements in W2 on the K frequency domain units are represented with less P elements. And the terminal equipment reports third indication information, the third indication information comprises first indication information and second indication information, the first indication information and the second indication information are independently coded, the first indication information is used for indicating P elements, and the second indication information is used for indicating P. Therefore, the terminal equipment can adjust the number of the information bits of the second indication information according to the change of the channel condition, and the efficiency of reporting the precoding matrix is improved.

Description

[0001] This application is a divisional application of the Chinese patent application filed on September 28, 2018, with the application number of 201880097614.2 and the application title of "Indication method, communication device and storage medium for precoding matrix", the entire contents of which are by reference Incorporated in this application. technical field [0002] The present application relates to the field of communication technologies, and in particular, to a precoding matrix indication method, a communication device, and a storage medium. Background technique [0003] In a Long Term Evolution (Long Term Evolution, LTE) system, a base station device receives channel state information (Channel State Information, CSI) reported by a terminal device. The CSI includes a precoding matrix indication PMI, and the PMI is used to indicate a channel precoding matrix (Precoding Matrix, PM) selected by the terminal device to the base station device. The base station device...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/04H04L1/06
CPCH04L1/04H04L1/0693H04L1/0047H04L1/0031H04L5/0057H04B7/0478H04B7/0639H04B7/0663Y02D30/70H04B7/0456
Inventor 张瑞齐李雪茹
Owner HUAWEI TECH CO LTD
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