The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 15, 2022

Filed:

Apr. 23, 2019
Applicant:

Spreadtrum Communications (Shanghai) Co., Ltd., Shanghai, CN;

Inventors:

Yanchao Xu, Shanghai, CN;

Chinghwa Yu, Shanghai, CN;

Yuren Zhao, Shanghai, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 74/08 (2009.01); H04B 7/0452 (2017.01); H04W 24/08 (2009.01);
U.S. Cl.
CPC ...
H04W 74/0808 (2013.01); H04B 7/0452 (2013.01);
Abstract

A method and a device for performing downlink multiple user-multiple input multiple output (DL MU-MIMO) transmission, a storage medium, and a user equipment. Said method comprises: in response to a channel competition success, performing a channel sounding procedure based on NDP; according to a preset Transmission Opportunity (TxOP) duration, or according to a busy or idle state of a channel in a first period after the channel sounding procedure based on NDP, determining whether to start to perform DL MU-MIMO transmission or not. Embodiments of the present disclosure provide a solution on how to improve probability and success rate of performing DL MU-MIMO transmission, improving efficiency of DL MU-MIMO transmission and performance of Wi-Fi.


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