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1. WO2020142705 - CONTROL CHANNEL DESIGN FOR SHARED WIRELESS COMMUNICATIONS

Publication Number WO/2020/142705
Publication Date 09.07.2020
International Application No. PCT/US2020/012206
International Filing Date 03.01.2020
IPC
H04W 72/04 2009.1
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
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
H04W 74/00 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
74Wireless channel access, e.g. scheduled or random access
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
CPC
H04L 5/0007
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
0003Two-dimensional division
0005Time-frequency
0007the frequencies being orthogonal, e.g. OFDM(A), DMT
H04L 5/001
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
0003Two-dimensional division
0005Time-frequency
0007the frequencies being orthogonal, e.g. OFDM(A), DMT
001the frequencies being arranged in component carriers
H04L 5/0048
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
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
H04W 16/14
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
14Spectrum sharing arrangements ; between different networks
H04W 72/042
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
04Wireless resource allocation
0406involving control information exchange between nodes
042in downlink direction of a wireless link, i.e. towards terminal
Applicants
  • QUALCOMM INCORPORATED [US]/[US]
Inventors
  • SUN, Jing
  • XU, Huilin
  • ZHANG, Xiaoxia
Agents
  • BRENNAN, Devin R.
Priority Data
16/733,17602.01.2020US
62/788,53004.01.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CONTROL CHANNEL DESIGN FOR SHARED WIRELESS COMMUNICATIONS
(FR) CONCEPTION DE CANAL DE COMMANDE POUR COMMUNICATIONS SANS FIL PARTAGÉES
Abstract
(EN)
Methods, systems, and devices for wireless communication are described that may enable a user equipment (UE) to monitor a shared spectrum to receive control signaling and data transmissions associated with different transmission time intervals (TTIs). For example, a base station may communicate with a UE according to a first transmission mode during a first, shortened TTI. The base station may transmit a downlink control channel for a shortened TTI based on a subset of a number of blind decodes or control channel elements. Additionally, a downlink control channel for a shortened TTI may contain grants for multiple TTIs. In some cases, the base station may transmit a signaling to the UE via a reference signal, downlink control channel, or radio resource control which may indicate a change from the shortened-TTI transmission mode to a transmission mode with a TTI duration that is longer than the first, shortened TTI duration.
(FR)
L'invention concerne des procédés, des systèmes et des dispositifs de communication sans fil qui peuvent permettre à un équipement utilisateur (UE) de surveiller un spectre partagé pour recevoir une signalisation de commande et des transmissions de données associées à différents intervalles de temps de transmission (TTI). Par exemple, une station de base peut communiquer avec un UE selon un premier mode de transmission pendant un premier TTI raccourci. La station de base peut transmettre un canal de commande de liaison descendante pour un TTI raccourci sur la base d'un sous-ensemble d'un certain nombre d'éléments de canal de commande ou de décodage aveugle. De plus, un canal de commande de liaison descendante pour un TTI raccourci peut contenir des autorisations pour de multiples TTI. Dans certains cas, la station de base peut transmettre une signalisation à l'UE par l'intermédiaire d'un signal de référence, un canal de commande de liaison descendante, ou une commande de ressource radio qui peut indiquer un changement du mode de transmission de TTI raccourci à un mode de transmission avec une durée de TTI qui est plus longue que la première durée de TTI raccourcie.
Also published as
Latest bibliographic data on file with the International Bureau