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Channel measurement method and communication device

A channel measurement, channel information technology, applied in transmission monitoring, radio transmission systems, electrical components, etc., can solve problems such as interference elimination, system capacity limitation, etc.

Pending Publication Date: 2022-02-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of multiple terminal devices, the network device can only regard the channel directions of these multiple terminal devices as equally important, which is not conducive to interference elimination and limits the system capacity

Method used

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  • Channel measurement method and communication device
  • Channel measurement method and communication device

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Experimental program
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Embodiment Construction

[0079] The technical solution in this application will be described below with reference to the accompanying drawings.

[0080] The technical solution provided by this application can be applied to various communication systems, such as: long term evolution (Long TermEvolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) ), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) Communication System, Future Fifth Generation (5th Generation, 5G) Mobile Communication System or New Wireless Access Technology (new radio access technology, NR). Wherein, the 5G mobile communication system may include non-standalone networking (non-standalone, NSA) and / or standalone networking (standalone, SA).

[0081] The technical solution provided by this application can also be applied to machine type communication (machine type communication, MTC), machi...

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Abstract

Provided are a channel measurement method and a communication device, the method comprising: generating channel information, the channel information being used for indicating one or more receiving beam vectors and one or more weighting coefficients, each weighting coefficient in the one or more weighting coefficients corresponding to one receiving beam vector, and the one or more receiving beam vectors and the corresponding weighting coefficients being used for determining a channel of at least one frequency domain unit between the terminal equipment and the network equipment, wherein the one or more receiving beam vectors are selected from a receiving beam vector set, and the receiving beam vector set is determined by a predefined base vector set; and sending the channel information. Therefore, the terminal equipment can feed back the information of the receiving side to the network equipment, so that the network equipment can determine the precoding according to the channel information fed back by each terminal equipment so as to approach the upper bound of the system capacity.

Description

technical field [0001] The present application relates to the field of wireless communication, and more specifically, relates to a channel measurement method and a communication device. Background technique [0002] In multi-user multiple-input multiple-output (MU-MIMO) technology, network devices can reduce the interference between multiple users and the interference between multiple signal streams of the same user through precoding. Interference is conducive to improving signal quality, realizing space division multiplexing, and improving spectrum utilization. [0003] In an implementation manner, the terminal device determines the downlink channel based on the channel measurement, and then determines the precoding matrix based on the downlink channel. The precoding matrix is ​​often an eigenvector obtained by performing singular value decomposition (singular value decomposition, SVD) on the downlink channel. However, the information of the receiving antenna port on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/382H04B7/0456
CPCH04B17/382H04B7/0456H04B7/0695H04B7/088H04B7/0626H04B7/063H04B7/0639
Inventor 金黄平杭海存王潇涵毕晓艳
Owner HUAWEI TECH CO LTD