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1. WO2020222434 - METHOD AND DEVICE FOR DETERMINING HARQ FEEDBACK OPTION IN NR V2X

Publication Number WO/2020/222434
Publication Date 05.11.2020
International Application No. PCT/KR2020/004687
International Filing Date 07.04.2020
IPC
H04L 1/18 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
12by using return channel
16in which the return channel carries supervisory signals, e.g. repetition request signals
18Automatic repetition systems, e.g. van Duuren system
H04L 1/16 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
12by using return channel
16in which the return channel carries supervisory signals, e.g. repetition request signals
H04L 1/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
H04L 5/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
H04L 27/26 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
H04W 4/40 2018.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
4Services specially adapted for wireless communication networks; Facilities therefor
30Services specially adapted for particular environments, situations or purposes
40for vehicles, e.g. vehicle-to-pedestrians
Applicants
  • 엘지전자 주식회사 LG ELECTRONICS INC. [KR]/[KR]
Inventors
  • 이종율 LEE, Jongyoul
  • 서한별 SEO, Hanbyul
  • 이영대 LEE, Youngdae
  • 박기원 PARK, Giwon
Agents
  • 인비전 특허법인 ENVISION PATENT & LAW FIRM
Priority Data
10-2019-004956129.04.2019KR
10-2019-006635805.06.2019KR
62/910,38203.10.2019US
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD AND DEVICE FOR DETERMINING HARQ FEEDBACK OPTION IN NR V2X
(FR) PROCÉDÉ ET DISPOSITIF PERMETTANT DE DÉTERMINER UNE OPTION DE RÉTROACTION HARQ DANS UNE COMMUNICATION V2X NR
(KO) NR V2X에서 HARQ 피드백 옵션을 결정하는 방법 및 장치
Abstract
(EN)
Provided are a method for performing, by a first device, group cast communication with one or more second devices in a group, and a device for supporting same. The method may comprise the steps of: determining the number of physical sidelink feedback channel (PSFCH) resources associated with a physical sidelink shared channel (PSSCH) resource; on the basis of the number of PSFCH resources and the size of the group, determining a hybrid automatic repeat request (HARQ) feedback option; and transmitting, to the one or more second devices, information associated with the HARQ feedback option. Here, the HARQ feedback option can be any one of a first HARQ feedback option or a second HARQ feedback option.
(FR)
L'invention concerne un procédé pour effectuer, par un premier dispositif, une communication de diffusion de groupe avec un ou plusieurs seconds dispositifs dans un groupe, et un dispositif de prise en charge associée. Le procédé peut consister : à déterminer le nombre de ressources de canal de rétroaction de liaison latérale physique (PSFCH) associées à une ressource de canal partagé de liaison latérale physique (PSSCH) ; sur la base du nombre de ressources PSFCH et de la taille du groupe, à déterminer une option de rétroaction de demande de répétition automatique hybride (HARQ) ; et à transmettre, au ou aux seconds dispositifs, des informations associées à l'option de rétroaction HARQ. Ici, l'option de rétroaction HARQ peut être l'une quelconque d'une première option de rétroaction HARQ ou d'une seconde option de rétroaction HARQ.
(KO)
제 1 장치가 그룹 내의 하나 이상의 제 2 장치와 그룹캐스트 통신을 수행하는 방법 및 이를 지원하는 장치가 제공된다. 상기 방법은, PSSCH(Physical Sidelink Shared Channel) 자원과 관련된 PSFCH(Physical Sidelink Feedback Channel) 자원의 개수를 결정하는 단계; 상기 PSFCH 자원의 개수와 상기 그룹의 사이즈(size)를 기반으로, HARQ(Hybrid Automatic Repeat Request) 피드백 옵션을 결정하는 단계; 및 상기 HARQ 피드백 옵션과 관련된 정보를 상기 하나 이상의 제 2 장치에게 전송하는 단계;를 포함할 수 있다. 여기서, 상기 HARQ 피드백 옵션은 제 1 HARQ 피드백 옵션 또는 제 2 HARQ 피드백 옵션 중 어느 하나일 수 있다.
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