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1. WO2020141484 - REPETITION FOR ULTRA-RELIABLE LOW-LATENCY COMMUNICATIONS

Publication Number WO/2020/141484
Publication Date 09.07.2020
International Application No. PCT/IB2020/050033
International Filing Date 03.01.2020
IPC
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 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
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 1/1819
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
1819with retransmission of additional or different redundancy
H04L 5/0023
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
0001Arrangements for dividing the transmission path
0014Three-dimensional division
0023Time-frequency-space
H04L 5/0035
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
0032Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
0035Resource allocation in a cooperative multipoint environment
H04L 5/0044
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
0044allocation of payload
H04L 5/0051
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
0048Allocation of pilot signals, i.e. of signals known to the receiver
0051of dedicated pilots, i.e. pilots destined for a single user or terminal
Applicants
  • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) [SE]/[SE]
Inventors
  • FRENNE, Mattias
  • BLANKENSHIP, Yufei
  • FAXÉR, Sebastian
  • GAO, Shiwei
  • MURUGANATHAN, Siva
Agents
  • BLOEBAUM, L. Scott
Priority Data
62/788,34804.01.2019US
62/791,27911.01.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) REPETITION FOR ULTRA-RELIABLE LOW-LATENCY COMMUNICATIONS
(FR) RÉPÉTITION POUR DES COMMUNICATIONS ULTRA FIABLES À FAIBLE LATENCE
Abstract
(EN)
Embodiments include methods, performed by a user equipment (UE), for communicating via a plurality of nodes in a wireless network. Such methods include receiving a plurality of Transmission Configuration Indicator (TCI) states, and receiving, via a single physical control channel, scheduling information for a plurality of physical data channels carrying a respective plurality of repetitions of a data block. The physical data channels can be respective layers of a PDSCH, or each physical data channel can be a subset of all layers of a PDSCH. Such methods include assigning one or more of the TCI states to the plurality of repetitions, and receiving the plurality of repetitions via the plurality of physical data channels based on the scheduling information and the assigned TCI states. Embodiments also include complementary methods performed by a wireless network, as well as UEs and wireless networks configured to perform such methods.
(FR)
Des modes de réalisation de l'invention concernent des procédés, exécutés par un équipement utilisateur (UE), pour communiquer par l'intermédiaire d'une pluralité de nœuds dans un réseau sans fil. De tels procédés comprend les étapes consistant à recevoir une pluralité d'états d'indicateur de configuration de transmission (TCI), et recevoir, par l'intermédiaire d'un canal de commande physique unique, des informations de planification pour une pluralité de canaux de données physiques portant une pluralité respective de répétitions d'un bloc de données. Les canaux de données physiques peuvent être des couches respectives d'un PDSCH, ou chaque canal de données physique peut être un sous-ensemble de toutes les couches d'un PDSCH. De tels procédés comprennent les étapes consistant à attribuer un ou plusieurs des états de TCI à la pluralité de répétitions, et recevoir la pluralité de répétitions par l'intermédiaire de la pluralité de canaux de données physiques sur la base des informations de planification et des états de TCI attribués. Des modes de réalisation concernent également des procédés complémentaires réalisés par un réseau sans fil, ainsi que des UE et des réseaux sans fil configurés pour réaliser de tels procédés.
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