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1. WO2021066952 - BEAM FAILURE RECOVERY AND RELATED TIMING DETERMINATION TECHNIQUES

Publication Number WO/2021/066952
Publication Date 08.04.2021
International Application No. PCT/US2020/046828
International Filing Date 18.08.2020
IPC
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
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
CPC
H04B 7/0617
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
0613using simultaneous transmission
0615of weighted versions of same signal
0617for beam forming
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 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 5/0098
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
0091Signaling for the administration of the divided path
0096Indication of changes in allocation
0098Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
H04W 16/28
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
16Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
24Cell structures
28using beam steering
Applicants
  • QUALCOMM INCORPORATED [US]/[US]
Inventors
  • BAI, Tianyang
  • ZHOU, Yan
  • VENUGOPAL, Kiran
  • RYU, Jung Ho
  • LUO, Tao
  • LI, Junyi
Agents
  • BELL, Orson J.
  • READ, Randol W.
  • HAMMACK, Marcus W.
Priority Data
16/805,40628.02.2020US
62/910,64204.10.2019US
62/926,23325.10.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) BEAM FAILURE RECOVERY AND RELATED TIMING DETERMINATION TECHNIQUES
(FR) RÉCUPÉRATION DE DÉFAILLANCE DE FAISCEAU ET TECHNIQUES DE DÉTERMINATION DE SYNCHRONISATION ASSOCIÉES
Abstract
(EN)
Aspects of the present disclosure provide techniques for beam failure detection and related timing determinations, such as for applying a default beam after beam failure recovery response (BFRR) message. A method by a user equipment (UE) may include detecting failure of a beam associated with a first cell. The detecting can include performing beam failure detection (BFD) of a beam pair link (BPL) associated with the first cell (e.g., secondary cell (Scell)). The first cell can be in carrier aggregation (CA) with a second cell. The UE may send a beam failure recovery request (BFRQ) message on a second cell (e.g., a primary cell (Pcell)). The BFRQ message can include a candidate recovery beam for the first cell. The UE can receive a BFRR message on the second cell and determine a duration from reception of the BFRR message until using a default beam for communications on the first cell.
(FR)
Des aspects de la présente divulgation concernent des techniques de détection de défaillance de faisceau et de déterminations de synchronisation associées, telles que l'application d'un faisceau par défaut après un message de réponse de récupération de défaillance de faisceau (BFRR). Un procédé par un équipement utilisateur (UE) peut comprendre la détection d'une défaillance d'un faisceau associé à une première cellule. La détection peut comprendre la réalisation d'une détection de défaillance de faisceau (BFD) d'une liaison de paire de faisceaux (BPL) associée à la première cellule (par exemple, une cellule secondaire (Scell)). La première cellule peut être en agrégation de porteuses (CA) avec une seconde cellule. L'UE peut envoyer un message de demande de récupération de défaillance de faisceau (BFRQ) sur une seconde cellule (par exemple, une cellule primaire (Pcell)). Le message BFRQ peut comprendre un faisceau de récupération candidat pour la première cellule. L'UE peut recevoir un message BFRR sur la seconde cellule et déterminer une durée à partir de la réception du message BFRR jusqu'à l'utilisation d'un faisceau par défaut pour des communications sur la première cellule.
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