Title:
FREQUENCY OFFSET ESTIMATION METHOD, STATION, AND ACCESS POINT
Document Type and Number:
WIPO Patent Application WO/2021/190527
Kind Code:
A1
Abstract:
The present application provides a frequency offset estimation method, a station (STA), and an access point (AP). The frequency offset estimation method can be applied to an uplink multi-STA multiple-input and multiple-output scenario, and comprises: an AP instructs an STA by means of first information how to generate and report frequency offset estimation training sequences; and determine a frequency offset between the AP and the STA on the basis of at least two received frequency offset estimation training sequences. The technical solution provided in the present application can improve the accuracy for the AP to obtain a frequency offset value between each of multiple STAs and the AP. The present application can be applied to 802.11ax, 802.11be, and a future wireless local area network wireless fidelity (WiFi) system.
Inventors:
CHEN ZHENG (CN)
YUAN FANGCHAO (CN)
CHEN PENG (CN)
YUAN FANGCHAO (CN)
CHEN PENG (CN)
Application Number:
PCT/CN2021/082558
Publication Date:
September 30, 2021
Filing Date:
March 24, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04B7/0452; H04L27/00
Foreign References:
CN107040295A | 2017-08-11 | |||
CN102469572A | 2012-05-23 | |||
CN109691050A | 2019-04-26 | |||
US20140270029A1 | 2014-09-18 |
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
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