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1. WO2022073021 - SL RELIABILITY ENHANCEMENT BY HALF DUPLEX AND COLLISION DETECTION

Publication Number WO/2022/073021
Publication Date 07.04.2022
International Application No. PCT/US2021/071661
International Filing Date 30.09.2021
IPC
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
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
CPC
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 2001/0092
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
0092Error control systems characterised by the topology of the transmission link
H04L 5/0053
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0053Allocation of signaling, i.e. of overhead other than pilot signals
H04L 5/0055
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0053Allocation of signaling, i.e. of overhead other than pilot signals
0055Physical resource allocation for ACK/NACK
H04L 5/006
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0058Allocation criteria
006Quality of the received signal, e.g. BER, SNR, water filling
Applicants
  • QUALCOMM INCORPORATED [US]/[US]
Inventors
  • DUTTA, Sourjya
  • NGUYEN, Tien Viet
  • GULATI, Kapil
  • SARKIS, Gabi
Agents
  • PALADINO, Robert
Priority Data
17/449,42529.09.2021US
63/086,00630.09.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SL RELIABILITY ENHANCEMENT BY HALF DUPLEX AND COLLISION DETECTION
(FR) AMÉLIORATION DE LA FIABILITÉ DE SL PAR SEMI-DUPLEX ET DÉTECTION DE COLLISION
Abstract
(EN) In one aspect, a method of wireless communication includes receiving, by a first user equipment (UE), a first transmission from a second UE for a new radio (NR) sidelink channel. The method also includes receiving, by the first UE, a second transmission from a third UE for the sidelink channel. The method further includes transmitting, by the first UE, a feedback transmission based on a medium contention event for the first and second transmissions of the NR sidelink channel and on a range condition. In additional aspects, the feedback transmission is transmitted based on a quality condition, or both a range condition and a quality condition. Other aspects and features are also claimed and described.
(FR) Selon un aspect, un procédé de communication sans fil consiste à recevoir, au moyen d'un premier équipement utilisateur (UE), une première transmission en provenance d'un deuxième UE destinée à un canal de liaison latérale (SL) de nouvelle radio (NR). Le procédé consiste également à recevoir, au moyen du premier UE, une seconde transmission en provenance d'un troisième UE destinée au canal de liaison latérale. Le procédé consiste en outre à transmettre, au moyen du premier UE, une transmission de rétroaction sur la base d'un événement de contention de support pour les première et seconde transmissions du canal de liaison latérale de NR et d'une condition de plage. Selon d'autres aspects, la transmission de rétroaction est transmise sur la base d'une condition de qualité, ou à la fois d'une condition de plage et d'une condition de qualité. D'autres aspects et caractéristiques sont également revendiqués et décrits.
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