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Patent Searching and Data


Title:
UPLINK MULTI-USER CHANNEL ESTIMATION METHOD, STATION, AND ACCESS POINT
Document Type and Number:
WIPO Patent Application WO/2021/047311
Kind Code:
A1
Abstract:
The present application provides an uplink multi-user channel estimation method, a station (STA) and an access point (AP). Said method can be applied to an uplink multi-user multiple input multiple output scenario. The uplink multi-user channel estimation method comprises: an STA generating a frame comprising a first group of training sequences and a second group of training sequences, and sending the frame to an AP; and the AP solving, on the basis of the received first group of training sequences and second group of training sequences, a frequency offset between the STA and the AP, and performing channel estimation on the basis of the calculated frequency offset. The technical solution provided in the present application can enable an AP to learn frequency offsets between a plurality of STAs and the AP more accurately, thereby improving the accuracy of channel estimation.

Inventors:
YUAN FANGCHAO (CN)
CHEN PENG (CN)
YANG BO (CN)
Application Number:
PCT/CN2020/104898
Publication Date:
March 18, 2021
Filing Date:
July 27, 2020
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L27/26
Domestic Patent References:
WO2017062129A12017-04-13
Foreign References:
CN110113276A2019-08-09
CN107276926A2017-10-20
CN103259757A2013-08-21
US20150098344A12015-04-09
CN201910866513A2019-09-12
Other References:
See also references of EP 4024801A4
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
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