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Title:
CHANNEL SOUNDING METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/175124
Kind Code:
A1
Abstract:
The present application provides a channel sounding method and apparatus. Said method comprises: a first communication device sending a first frame to a second communication device, the first frame being used to notify the second communication device to perform channel sounding on some of antennas of the first communication device; the first communication device sending a second frame to the second communication device, the second frame being used by the second communication device to perform channel sounding on some of the antennas; and the first communication device receiving a third frame from the second communication device, the third frame being used to indicate a result of channel sounding on some of the antennas. On the basis of the technical solution above, the first communication device may indicate to the second communication device an antenna set requiring the second communication device to perform channel measurement, rather than performing channel sounding on all of antennas, and feed back a channel sounding result, so that the overheads for feeding back channel state information can be reduced.

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Inventors:
YAN ZHONGJIANG (CN)
YANG MAO (CN)
LIANG DANDAN (CN)
YU JIAN (CN)
LI YUNBO (CN)
GAN MING (CN)
Application Number:
PCT/CN2021/077231
Publication Date:
September 10, 2021
Filing Date:
February 22, 2021
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04B7/06; H04B7/0417; H04W24/00
Foreign References:
CN105409156A2016-03-16
CN110114990A2019-08-09
CN108886395A2018-11-23
US20180351620A12018-12-06
US10567134B12020-02-18
US20200029236A12020-01-23
CN103001744A2013-03-27
CN202010135651A2020-03-02
Other References:
See also references of EP 4106222A4
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
Download PDF:
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