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1. WO2020068404 - COORDINATION OF LISTEN BEFORE TALK STRUCTURE IN NEW RADIO-UNLICENSED MULTI-CHANNEL ACCESS

Publication Number WO/2020/068404
Publication Date 02.04.2020
International Application No. PCT/US2019/050237
International Filing Date 09.09.2019
IPC
H04W 74/08 2009.01
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
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 1/713
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
69Spread spectrum techniques
713using frequency hopping
H04L 5/0032
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
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 5/0091
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
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 72/0426
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
0426between access points
Applicants
  • QUALCOMM INCORPORATED [US]/[US]
Inventors
  • XUE, Yisheng
  • DAMNJANOVIC, Aleksandar
  • ZHANG, Xiaoxia
  • SUN, Jing
  • WEI, Yongbin
  • KADOUS, Tamer
Agents
  • MEANEY, Thomas J.
Priority Data
16/562,68706.09.2019US
62/737,58627.09.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) COORDINATION OF LISTEN BEFORE TALK STRUCTURE IN NEW RADIO-UNLICENSED MULTI-CHANNEL ACCESS
(FR) COORDINATION DE LA STRUCTURE ÉCOUTER AVANT DE PARLER DANS UN ACCÈS MULTICANAL DE NOUVELLE RADIO SANS LICENCE
Abstract
(EN)
Coordination of listen before talk (LBT) structure in new radio (NR) unlicensed (NR-U) multi-channel access operations is disclosed. In one aspect, when a base station determines to access shared communication spectrum, it may transmit an LBT structure signal that identifies the current LBT structure. The base station would then attempt access to the shared spectrum according to the LBT structure. In another aspect, a coordination server is used to manage access to the shared spectrum. Each node desiring access registers with the coordination server, which provides access parameters for the accessing node to use that increases the likelihood of successful access. The accessing nodes will transmit the selected access configuration used to access the shared spectrum, wherein the access configuration is selected based on the access parameters.
(FR)
L'invention concerne la coordination de la structure LBT (écouter avant de parler) dans des opérations d’accès multicanal de nouvelle radio (NR) sans licence (NR-U). Dans un aspect, lorsqu'une station de base détermine d’accéder au spectre de communication partagé, elle peut transmettre un signal de structure LBT qui identifie la structure LBT actuelle. La station de base tente ensuite d'accéder au spectre partagé selon la structure LBT. Dans un autre aspect, un serveur de coordination est utilisé pour gérer l'accès au spectre partagé. Chaque nœud souhaitant accéder à des registres avec le serveur de coordination, qui fournit des paramètres d'accès pour le nœud d'accès à utiliser, augmente la probabilité d'accès réussi. Les nœuds d'accès transmettent la configuration d'accès sélectionnée utilisée pour accéder au spectre partagé, la configuration d'accès étant sélectionnée sur la base des paramètres d'accès.
Also published as
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