METHOD AND DEVICE FOR RESERVING RESOURCES IN NR V2X

Title:

METHOD AND DEVICE FOR RESERVING RESOURCES IN NR V2X

Document Type and Number:

WIPO Patent Application WO/2021/230569

Kind Code:

A1

Abstract:

According to an embodiment of the present disclosure, provided is a method in which a first device establishes sidelink communication. The method can comprise the steps of: transmitting first SCI to at least one device by means of at least one PSCCH; transmitting data and second SCI which is different from the first SCI to the at least one device by means of at least one PSSCH associated with the at least one PSCCH; determining a plurality of PSFCH resources for receiving a plurality of sidelink HARQ feedbacks associated with the data, on the basis of an index of a slot associated with the at least one PSSCH and an index of a sub-channel; receiving, from the at least one device, at least one sidelink HARQ feedback associated with the data on the basis of at least one PSFCH resource among the plurality of PSFCH resources; and determining to reselect a sidelink transmission resource associated with the at least one PSCCH or the at least one PSSCH, on the basis that a ratio of the total number of bits associated with ACK relative to the total number of bits associated with the plurality of sidelink HARQ feedbacks is equal to or less than a threshold value.

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Inventors:

HWANG DAESUNG (KR)
LEE SEUNGMIN (KR)
SEO HANBYUL (KR)

Application Number:

PCT/KR2021/005705

Publication Date:

November 18, 2021

Filing Date:

May 07, 2021

Export Citation:

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Assignee:

LG ELECTRONICS INC (KR)

International Classes:

H04W72/12; H04W4/40; H04W28/26; H04W72/02; H04W92/18

Foreign References:

US20200106566A1	2020-04-02
US20200112400A1	2020-04-09
US20200099479A1	2020-03-26

Other References:

APPLE: "On Remaining Details of Resource Allocation for Mode 2", 3GPP DRAFT; R1-2002325, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20200420 - 20200430, 11 April 2020 (2020-04-11), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051875545
SAMSUNG: "On Physical Layer Structures for NR Sidelink", 3GPP DRAFT; R1-2002689, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e Meeting; 20200420 - 20200430, 16 April 2020 (2020-04-16), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051876558

Attorney, Agent or Firm:

ENVISION PATENT & LAW FIRM (KR)

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