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1. WO2021021810 - BEAM UPDATING FOR MULTIPLE TRANSMISSION RECEPTION POINTS

Publication Number WO/2021/021810
Publication Date 04.02.2021
International Application No. PCT/US2020/043877
International Filing Date 28.07.2020
IPC
H04W 72/04 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. selection or allocation of wireless resources or wireless traffic scheduling
04Wireless resource allocation
H04B 7/08 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
08at the receiving station
H04B 7/06 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
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
CPC
H04B 7/0695
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0686Hybrid systems, i.e. switching and simultaneous transmission
0695using beam selection
H04B 7/088
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
08at the receiving station
0868Hybrid systems, i.e. switching and combining
088using beam selection
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 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 5/0053
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
Applicants
  • QUALCOMM INCORPORATED [US]/[US]
Inventors
  • CHENDAMARAI KANNAN, Arumugam
  • ZHANG, Xiaoxia
  • KHOSHNEVISAN, Mostafa
  • LUO, Tao
  • SUN, Jing
  • PARK, Sungwoo
Agents
  • MUTTER, Nathan J.
Priority Data
16/939,86727.07.2020US
62/880,29730.07.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) BEAM UPDATING FOR MULTIPLE TRANSMISSION RECEPTION POINTS
(FR) MISE À JOUR DE FAISCEAUX POUR MULTIPLES POINTS D'ÉMISSION-RÉCEPTION
Abstract
(EN)
Methods, systems, and devices for wireless communications are described. Aspects include configuring a user equipment (UE) to receive control signals from a first transmission reception point (TRP) and a second TRP. A first TRP may transmit a control signal to the UE indicating resources for receiving a medium access control element (MAC-CE), where the control signal includes an indication that associates the MAC-CE with the first TRP. The first TRP may transmit the MAC-CE to the UE which may include a beam update indication for the first TRP. The UE may transmit an acknowledgement to the first TRP based on receiving the MAC-CE. The UE may also transmit an acknowledgment to the second TRP indicating that it has received a beam update indication from the first TRP. In some cases, the first TRP may send a MAC-CE signal to the UE including beam update information for the second TRP.
(FR)
L’invention concerne des procédés, des systèmes et des dispositifs destinés à des communications sans fil. Certains aspects comprennent la configuration d'un équipement d'utilisateur (UE) de façon à recevoir des signaux de commande d'un premier point d'émission-réception (TRP) et d'un second TRP. Un premier TRP peut transmettre un signal de commande à l'UE, indiquant des ressources permettant de recevoir un élément de commande d'accès à un support (MAC-CE), le signal de commande comprenant une indication qui associe le MAC-CE au premier TRP. Le premier TRP peut transmettre le MAC-CE à l'UE qui peut comprendre une indication de mise à jour de faisceau pour le premier TRP. L'UE peut transmettre un accusé de réception (AR) au premier TRP en fonction de la réception du MAC-CE. L'UE peut également transmettre un accusé de réception au second TRP, indiquant qu'il a reçu une indication de mise à jour de faisceau du premier TRP. Dans certains cas, le premier TRP peut envoyer un signal de MAC-CE à l'UE, comprenant des informations de mise à jour de faisceau pour le second TRP.
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