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:
Mar. 11, 2025

Filed:

Jul. 23, 2020
Applicant:

Panasonic Intellectual Property Corporation of America, Torrance, CA (US);

Inventors:

Quan Kuang, Langen, DE;

Hidetoshi Suzuki, Kanagawa, JP;

Hongchao Li, Langen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 74/08 (2024.01); H04W 16/14 (2009.01); H04W 74/0808 (2024.01); H04W 74/0833 (2024.01);
U.S. Cl.
CPC ...
H04W 74/0808 (2013.01); H04W 16/14 (2013.01); H04W 74/0833 (2013.01);
Abstract

The present disclosure relates to a user equipment (UE) and base station (BS) involved in an improved physical random access channel, PRACH, transmission. The UE configures, based on a received unlicensed channel access configuration, symbols of an occupancy time of the respective unlicensed channel for uplink communication; receives an indication of a timing of channel resources which are to be used for a PRACH transmission; determines whether or not the indicated timing of channel resources is included within the symbols configured for uplink communication; if successful, performs a clear channel assessment, CCA, for a gap duration before the start of the indicated timing of channel resources which are to be used for the PRACH transmission; and if successful, transmits a random access, RA, preamble within the symbols configured for uplink communication at the indicated timing of channel resources which are to be used for the PRACH transmission.


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