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1. WO2020133506 - DATA TRANSMISSION METHOD AND APPARATUS IN DIRECT COMMUNICATION, DEVICE, AND SYSTEM

Publication Number WO/2020/133506
Publication Date 02.07.2020
International Application No. PCT/CN2018/125827
International Filing Date 29.12.2018
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
H04W 4/44 2018.1
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
44for communication between vehicles and infrastructures, e.g. vehicle-to-cloud or vehicle-to-home
CPC
H04L 1/16
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 1/18
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
H04L 5/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
H04W 4/44
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 [V2P]
44for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
H04W 72/04
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
04Wireless resource allocation
H04W 76/14
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
76Connection management
10Connection setup
14Direct-mode setup
Applicants
  • 北京小米移动软件有限公司 BEIJING XIAOMI MOBILE SOFTWARE CO., LTD. [CN]/[CN]
Inventors
  • 赵群 ZHAO, Qun
Agents
  • 北京三高永信知识产权代理有限责任公司 BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD.
Priority Data
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) DATA TRANSMISSION METHOD AND APPARATUS IN DIRECT COMMUNICATION, DEVICE, AND SYSTEM
(FR) PROCÉDÉ ET APPAREIL DE TRANSMISSION DE DONNÉES LORS D'UNE COMMUNICATION DIRECTE, DISPOSITIF ET SYSTÈME
(ZH) 直连通信的数据传输方法、装置、设备及系统
Abstract
(EN)
The present invention relates to the technical field of communications, and relates to a data transmission method and apparatus in direct communication, a device, and a system. The method comprises: when an uplink HARQ feedback bit and a direct-link HARQ feedback bit are required to be sent in a target time unit, a first terminal sends the uplink HARQ feedback bit and the direct-link HARQ feedback bit to an access network device on an uplink channel of the same physical layer in the target time unit. According to the present invention, the uplink HARQ feedback bit and the direct-link HARQ feedback bit are multiplexed, and are reported on the uplink channel of the same physical layer in the target time unit, which avoids the resource conflict problem in the related technology caused by overlapping of a direct-link HARQ feedback and an uplink HARQ feedback in a time domain, fully ensures the transmitting and receiving success rates of information in a direct communication scene, and helps improve the transmission efficiency of the HARQ feedbacks.
(FR)
La présente invention relève du domaine technique des communications et concerne un procédé et un appareil de transmission de données lors d'une communication directe, ainsi qu'un dispositif et un système. Au cours du procédé, lorsqu'un bit de renvoi de HARQ de liaison montante et un bit de renvoi de HARQ de liaison directe doivent être envoyés pendant une unité de temps cible, un premier terminal envoie le bit de renvoi de HARQ de liaison montante et le bit de renvoi de HARQ de liaison directe à un dispositif de réseau d'accès sur un canal de liaison montante de la même couche physique pendant l'unité de temps cible. D'après la présente invention, le bit de renvoi de HARQ de liaison montante et le bit de renvoi de HARQ de liaison directe sont multiplexés puis rapportés sur le canal de liaison montante de la même couche physique pendant l'unité de temps cible, ce qui évite le problème du conflit de ressources se posant dans la technologie connexe à cause du chevauchement d'un renvoi de HARQ de liaison directe et d'un renvoi de HARQ de liaison montante dans un domaine temporel, garantit totalement les taux de réussite de transmission et de réception d'informations dans une scène de communication directe et contribue à accroître l'efficacité de transmission des renvois de HARQ.
(ZH)
本公开是关于一种直连通信的数据传输方法、装置、设备及系统,属于通信技术领域。所述方法包括:当需要在目标时间单元内发送上行HARQ反馈比特和直连HARQ反馈比特时,第一终端在目标时间单元内的同一个物理层上行信道上向接入网设备发送上行HARQ反馈比特和直连HARQ反馈比特。本公开通过上述方式将上行HARQ反馈比特和直连HARQ反馈比特复用起来,使用目标时间单元内的同一个物理层上行信道进行上报,避免了相关技术中直连HARQ反馈和上行HARQ反馈的传输在时间域上重合导致资源冲突的问题,充分确保了在直连通信场景中信息收发的成功率,且有助于提高HARQ反馈的传输效率。
Also published as
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