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1. WO2020221343 - MULTICAST FEEDBACK CONFIGURATION METHOD AND DEVICE

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Publication Number WO/2020/221343
Publication Date 05.11.2020
International Application No. PCT/CN2020/088239
International Filing Date 30.04.2020
IPC
H04L 1/16 2006.1
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 5/00 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
H04W 74/08 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
74Wireless channel access, e.g. scheduled or random access
08Non-scheduled access, e.g. random access, ALOHA or CSMA
H04W 72/12 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. selection or allocation of wireless resources or wireless traffic scheduling
12Wireless traffic scheduling
CPC
H04L 1/1607
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
1607Details of the supervisory signal
H04L 1/1812
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 ; ; ARQ protocols
1812Hybrid protocols
H04L 1/1825
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 ; ; ARQ protocols
1825Adaptation of specific ARQ protocol parameters according to transmission conditions
H04L 1/1854
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 ; ; ARQ protocols
1829Arrangements specific to the receiver end
1854Scheduling and prioritising arrangements
H04L 1/1858
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 ; ; ARQ protocols
1829Arrangements specific to the receiver end
1858Transmission or retransmission of more than one copy of acknowledgement message
H04L 1/1861
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 ; ; ARQ protocols
1829Arrangements specific to the receiver end
1861Physical mapping arrangements
Applicants
  • 华为技术有限公司 HUAWEI TECHNOLOGIES CO., LTD. [CN]/[CN]
Inventors
  • 黄海宁 HUANG, Haining
  • 张兴炜 ZHANG, Xingwei
  • 黎超 LI, Chao
Agents
  • 北京中博世达专利商标代理有限公司 BEIJING ZBSD PATENT&TRADEMARK AGENT LTD.
Priority Data
201910364623.X01.05.2019CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) MULTICAST FEEDBACK CONFIGURATION METHOD AND DEVICE
(FR) PROCÉDÉ ET DISPOSITIF DE CONFIGURATION DE RÉTROACTION DE MULTIDIFFUSION
(ZH) 组播反馈配置方法及装置
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Abstract
(EN) The present application provides a multicast feedback configuration method and device, relates to the technical field of communications, especially V2X, smart driving, and intelligent connected vehicles, and can be used to ensure reliable data transmission and improve resource utilization. The method comprises: a first terminal sending first information to a second terminal, wherein the first information comprises information indicating a feedback configuration of first data, the first data is a data packet sent by the first terminal to the second terminal, the feedback configuration is a first feedback configuration or a second feedback configuration, and the second terminal, in the first feedback configuration, only feeds back a negative acknowledgement message indicating data packet reception failure to the first terminal, and, in the second feedback configuration, feeds back to the first terminal either a positive acknowledgement message indicating data packet reception success or a negative acknowledgement message indicating data packet reception failure. The method is applied to a multicast transmission process.
(FR) La présente invention concerne un procédé et un dispositif de configuration de rétroaction de multidiffusion, ayant trait au domaine technique des communications, en particulier V2X, à la conduite intelligente et aux véhicules connectés intelligents, et peut être utilisée pour garantir une transmission de données fiable et améliorer l'utilisation des ressources. Le procédé comprend les étapes suivantes : un premier terminal envoie des premières informations à un second terminal, les premières informations comprenant des informations indiquant une configuration de rétroaction concernant des premières données, les premières données étant un paquet de données envoyé par le premier terminal au second terminal, la configuration de rétroaction étant une première configuration de rétroaction ou une seconde configuration de rétroaction, et le second terminal, dans la première configuration de rétroaction, renvoyant au premier terminal uniquement un message d'accusé de réception négatif indiquant un échec de réception du paquet de données, et dans la seconde configuration de rétroaction, renvoyant au premier terminal soit un message d'accusé de réception positif indiquant un succès de réception du paquet de données soit un message d'accusé de réception négatif indiquant un échec de réception du paquet de données. Le procédé est appliqué à un processus de transmission en multidiffusion.
(ZH) 本申请提供一种组播反馈配置方法及装置，涉及通信技术领域，特别是V2X、智能驾驶、智能网联汽车等，能够保证数据可靠性传输，提高资源利用率。该方法包括：第一终端向第二终端发送第一信息，其中，第一信息包括指示第一数据的反馈方式的信息，第一数据为第一终端向第二终端发送的数据包，反馈方式为第一反馈方式或第二反馈方式，第一反馈方式为第二终端仅向第一终端反馈数据包接收失败的确认应答信息，第二反馈方式为第二终端向第一终端反馈数据包接收成功或失败的确认应答信息。该方法应用在组播传输过程中。
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