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1. WO2020092161 - PACKET DUPLICATION FOR HIGH RELIABILITY COMMUNICATION

Publication Number WO/2020/092161
Publication Date 07.05.2020
International Application No. PCT/US2019/058103
International Filing Date 25.10.2019
IPC
H04L 1/08 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
08by repeating transmission, e.g. Verdan system
CPC
H04L 1/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
08by repeating transmission, e.g. Verdan system
H04L 1/1816
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
1816with retransmission of the same, encoded, message
H04L 1/189
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
1867Arrangements specific to the transmitter end
189Transmission or retransmission of more than one copy of a message
H04W 72/14
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
12Dynamic; Wireless traffic scheduling ; ; Dynamically scheduled allocation on shared channel
14using a grant ; or specific; channel
H04W 74/0808
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
74Wireless channel access, e.g. scheduled or random access
08Non-scheduled ; or contention based; access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
0808using carrier sensing, e.g. as in CSMA
H04W 80/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
80Wireless network protocols or protocol adaptations to wireless operation
02Data link layer protocols
Applicants
  • QUALCOMM INCORPORATED [US]/[US]
Inventors
  • YERRAMALLI, Srinivas
  • ZHANG, Xiaoxia
  • FAKOORIAN, Seyed Ali Akbar
Agents
  • SWICKHAMER, Christopher M.
Priority Data
16/662,82224.10.2019US
62/753,04630.10.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PACKET DUPLICATION FOR HIGH RELIABILITY COMMUNICATION
(FR) DUPLICATION DE PAQUETS À DES FINS DE COMMUNICATION À HAUTE FIABILITÉ
Abstract
(EN)
Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for increasing the chances that a high reliability packet scheduled to be transmitted in a shared radio frequency spectrum is received by a receiving device. In one example, a wireless device (e.g., a base station or a user equipment (UE)) may duplicate a packet at a packet data convergence protocol (PDCP) layer for transmission on multiple listen before talk (LBT) subchannels of a carrier to improve reliability. In another example, a wireless device may duplicate a packet at a physical (PHY) layer for transmission on multiple LBT subchannels of a carrier to improve reliability, or the wireless device may encode and map the packet to multiple LBT subchannels of a carrier for transmission on the multiple LBT subchannels to improve reliability.
(FR)
L'invention concerne des procédés, des systèmes et des dispositifs de communication sans fil. Les techniques décrites permettent globalement d'augmenter les chances de réception, par un dispositif de réception, d'un paquet à haute fiabilité programmé en transmission dans un spectre radiofréquence partagé. Selon un exemple, un dispositif sans fil (par exemple, une station de base ou un équipement d'utilisateur (UE)) peut dupliquer un paquet au niveau d'une couche de protocole de convergence de données par paquets (PDCP) à des fins de transmission sur de multiples sous-canaux de type écouter avant de parler (LBT) d'une porteuse pour améliorer la fiabilité. Selon un autre exemple, un dispositif sans fil peut dupliquer un paquet au niveau d'une couche physique (PHY) à des fins de transmission sur de multiples sous-canaux de type LBT d'une porteuse pour améliorer la fiabilité, ou le dispositif sans fil peut coder et mapper le paquet sur de multiples sous-canaux de type LBT d'une porteuse à des fins de transmission sur les multiples sous-canaux de type LBT pour améliorer la fiabilité.
Also published as
Latest bibliographic data on file with the International Bureau