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Title:
METHOD AND APPARATUS FOR SELECTING CRITERIA FOR SIDELINK SYNCHRONIZATION IN NR V2X
Document Type and Number:
WIPO Patent Application WO/2021/080372
Kind Code:
A1
Abstract:
Proposed is a method for performing wireless communication by a first device. The method may comprise the steps of: receiving a plurality of sidelink-synchronization signal blocks (S-SSBs) from a plurality of synchronization sources, wherein each of the plurality of S-SSBs includes a sidelink primary synchronization signal (S-PSS), a sidelink secondary synchronization signal (S-SSS), and a physical sidelink broadcast channel (PSBCH); selecting any one of the plurality of synchronization sources on the basis of a reference signal received power (RSRP) associated with each of the plurality of S-SSBs and a sidelink synchronization signal (SLSS) ID associated with each of the plurality of S-SSBs; performing synchronization on the basis of the S-SSB associated with the selected synchronization source; and transmitting a PSCCH or PSSCH to a second device on the basis of the synchronization. For example, the SLSS ID associated with each of the plurality of S-SSBs may be a criterion for selecting any one of the plurality of synchronization sources, on the basis of the fact that a RSRP value associated with each of the plurality of S-SSBs is equal to or greater than a minimum RSRP threshold value.

Inventors:
KO WOOSUK (KR)
SEO HANBYUL (KR)
LEE SEUNGMIN (KR)
Application Number:
PCT/KR2020/014569
Publication Date:
April 29, 2021
Filing Date:
October 23, 2020
Export Citation:
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Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04W56/00; H04J11/00; H04W4/40; H04W48/10; H04W92/18
Domestic Patent References:
WO2019143937A12019-07-25
Other References:
CATT: "Sidelink synchronization mechanism in NR V2X", 3GPP DRAFT; R1-1910330 SIDELINK SYNCHRONIZATION MECHANISM IN NR V2X - FINAL, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chongqing, China; 20191014 - 20191018, 5 October 2019 (2019-10-05), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051789134
MITSUBISHI ELECTRIC: "On synchronization procedures for NR V2X sidelink", 3GPP DRAFT; R1-1910180 - RAN1#98B-V2X_SYNC_MITSUBISHI, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chongqing, China; 20191014 - 20191020, 4 October 2019 (2019-10-04), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051788987
INTEL CORPORATION: "Sidelink Synchronization for NR V2X Communication", 3GPP DRAFT; R1-1910651 INTEL - EV2X SL SYNC, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chongqing, China; 20191014 - 20191020, 8 October 2019 (2019-10-08), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051809171
FUTUREWEI: "Synchronization for sidelink", 3GPP DRAFT; R1-1910699, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chongqing, China; 20191014 - 20191020, 4 October 2019 (2019-10-04), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051789488
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
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