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:
Aug. 25, 2026

Filed:

Oct. 14, 2021
Applicant:

Nec Corporation, Tokyo, JP;

Inventors:

Caroline Liang, London, GB;

Robert Arnott, London, GB;

Takahiro Sasaki, Tokyo, JP;

Assignee:

NEC CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 74/0808 (2024.01); H04W 16/14 (2009.01);
U.S. Cl.
CPC ...
H04W 74/0825 (2013.01); H04W 16/14 (2013.01);
Abstract

A method is disclosed in which a user equipment (UE) that communicates with a radio access network (RAN) maintains information for configuring timing of fixed frame period (FFPs) for a listen-before-talk (LBT) procedure. When the UE has data to be transmitted, it performs a clear channel assessment, CCA, to determine if a communication channel is clear. When the CCA indicates that the communication channel is clear a channel occupancy time, COT, is initiated for the UE within a subsequent FFP and transmission of the data commences. However, transmission of the data ceases following receipt of an indication, from a node of the RAN, that the transmission should be stopped.


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