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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.

Patent No.:

US 12574161 B1

PDFFull Text
Date of Patent:
Mar. 10, 2026

Filed:

May. 21, 2021

Method and apparatus for determining time density related to pt-rs in nr v2x

Applicant:

Lg Electronics Inc., Seoul, KR;

Inventors:

Seungmin Lee, Seoul, KR;

Uihyun Hong, Seoul, KR;

Daesung Hwang, Seoul, KR;

Hanbyul Seo, Seoul, KR;

Assignee:

LG ELECTRONICS INC., Seoul, KR;

Attorney:

BRYAN CAVE LEIGHTON PAISNER LLP

Primary Examiner:

Jae Y Lee

Assistant Examiner:

Nhu undefined Pham

Int. Cl.
CPC ...
H04W 72/25 (2023.01); H04L 1/1812 (2023.01); H04L 5/00 (2006.01); H04W 4/40 (2018.01); H04W 72/0446 (2023.01);
U.S. Cl.
CPC ...
H04L 1/1816 (2013.01); H04L 5/0051 (2013.01); H04W 72/0446 (2013.01); H04W 72/25 (2023.01); H04W 4/40 (2018.02);
Abstract

According to one embodiment, proposed is a method by which a first device performs wireless communication. The method may comprise the steps of: receiving sidelink control information (SCI) related to initial transmission of a transport block from a second device through a first physical sidelink control channel (PSCCH); receiving the transport block from the second device through a first physical sidelink shared channel (PSSCH) related to the first PSCCH; determining a resource related to a physical sidelink feedback channel (PSFCH) on the basis of an index of a slot and an index of a subchannel related to the first PSSCH; transmitting an sidelink hybrid automatic repeat request negative acknowledgment (SL HARQ NACK) related to the transport block to the second device on the basis of the resource related to the PSFCH; receiving SCI related to retransmission of the transport block from the second device through a second PSCCH; and determining a time density related to a phase-tracking reference signal (PT-RS) on the basis of the fact that the SCI related to the retransmission includes a modulation coding scheme (MCS) index field indicating a reserved state. For example, the time density related to the PT-RS may be determined on the basis of a reference MCS index value related to the MCS index field indicating the reserved state.

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