Title:
METHOD AND DEVICE FOR PERFORMING UNIDIRECTIONAL TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/098079
Kind Code:
A1
Abstract:
Provided are a method and device for performing groupcast transmission in a wireless communication system. A transmission terminal can transmit, through a plurality of beams, a discovery signal and a message notifying the starting of a groupcast service, and find the best transmission beam for a reception terminal on the basis of which resource the reception terminal uses to transmit feedback to the message. Thereafter, the transmission terminal can transmit data to the reception terminal by using the best transmission beam.
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Inventors:
HWANG BONGJUN (KR)
Application Number:
PCT/KR2021/015785
Publication Date:
May 12, 2022
Filing Date:
November 03, 2021
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04W76/14; H04B7/0408; H04B7/06; H04B7/08; H04L1/18; H04W4/06; H04W4/40; H04W8/00; H04W76/18
Other References:
INTERDIGITAL INC.: "Resource Allocation for NR V2X", 3GPP DRAFT; R1-1808599, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 10 August 2018 (2018-08-10), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , pages 1 - 4, XP051515976
LIEN SHAO-YU; DENG DER-JIUNN; LIN CHUN-CHENG; TSAI HUA-LUNG; CHEN TAO; GUO CHAO; CHENG SHIN-MING: "3GPP NR Sidelink Transmissions Toward 5G V2X", IEEE ACCESS, IEEE, USA, vol. 8, 13 February 2020 (2020-02-13), USA , pages 35368 - 35382, XP011774398, DOI: 10.1109/ACCESS.2020.2973706
OPPO: "Discussion of sidelink unicast, groupcast and broadcast for NR-V2X", 3GPP DRAFT; R1-1810984-UNICAST-GROUPCAST-BROADCAST, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chengdu, China; 20181008 - 20181012, 29 September 2018 (2018-09-29), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051518389
NTT DOCOMO, INC.: "Sidelink resource allocation mechanism for NR V2X", 3GPP DRAFT; R1-1900965_SL RESOURCE ALLOCATION, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Taipei; 20190121 - 20190125, 20 January 2019 (2019-01-20), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051593810
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Overall description of Radio Access Network (RAN) aspects for Vehicle-to-everything (V2X) based on LTE and NR (Release 16)", 3GPP DRAFT; R2-1915980, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 8 November 2019 (2019-11-08), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051817538
LIEN SHAO-YU; DENG DER-JIUNN; LIN CHUN-CHENG; TSAI HUA-LUNG; CHEN TAO; GUO CHAO; CHENG SHIN-MING: "3GPP NR Sidelink Transmissions Toward 5G V2X", IEEE ACCESS, IEEE, USA, vol. 8, 13 February 2020 (2020-02-13), USA , pages 35368 - 35382, XP011774398, DOI: 10.1109/ACCESS.2020.2973706
OPPO: "Discussion of sidelink unicast, groupcast and broadcast for NR-V2X", 3GPP DRAFT; R1-1810984-UNICAST-GROUPCAST-BROADCAST, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chengdu, China; 20181008 - 20181012, 29 September 2018 (2018-09-29), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051518389
NTT DOCOMO, INC.: "Sidelink resource allocation mechanism for NR V2X", 3GPP DRAFT; R1-1900965_SL RESOURCE ALLOCATION, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Taipei; 20190121 - 20190125, 20 January 2019 (2019-01-20), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051593810
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Overall description of Radio Access Network (RAN) aspects for Vehicle-to-everything (V2X) based on LTE and NR (Release 16)", 3GPP DRAFT; R2-1915980, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 8 November 2019 (2019-11-08), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051817538
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
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