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1. WO2020194261 - INDICATION OF DOWNLINK CLEAR CHANNEL ASSESSMENT FAILURES

Publication Number WO/2020/194261
Publication Date 01.10.2020
International Application No. PCT/IB2020/052934
International Filing Date 27.03.2020
IPC
H04W 72/00 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. selection or allocation of wireless resources or wireless traffic scheduling
CPC
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 72/0406
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
H04W 74/0808
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
74Wireless channel access, e.g. scheduled or random access
08Non-scheduled ; or contention based; access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
0808using carrier sensing, e.g. as in CSMA
H04W 76/19
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
76Connection management
10Connection setup
19Connection re-establishment
Applicants
  • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) [SE]/[SE]
Inventors
  • RUNE, Johan
  • SIOMINA, Iana
  • WANG, Min
Agents
  • LEWIS, Stanton A.
Priority Data
62/825,07028.03.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) INDICATION OF DOWNLINK CLEAR CHANNEL ASSESSMENT FAILURES
(FR) INDICATION D'ÉCHECS D'ÉVALUATION DE CANAL LIBRE EN LIAISON DESCENDANTE
Abstract
(EN)
According to some embodiments, a method performed by a wireless device for detecting a downlink radio failure comprises: establishing a wireless connection with a network node using unlicensed radio spectrum; receiving an indication that the network node incurred a clear channel assessment (CCA) failure in a prior attempt to communicate with the wireless device; and in response to the indication of the CCA failure, determining whether to trigger a radio failure condition.
(FR)
Selon certains modes de réalisation, l'invention concerne un procédé mis en œuvre par un dispositif sans fil pour détecter une défaillance radio en liaison descendante, qui consiste à : établir une connexion sans fil avec un nœud de réseau à l'aide d'un spectre radio sans licence ; recevoir une indication du fait que le nœud de réseau a subi un échec d'évaluation de canal libre (CCA) dans une tentative précédente pour communiquer avec le dispositif sans fil ; et en réponse à l'indication de l'échec de CCA, déterminer l'opportunité de déclencher un état de défaillance radio.
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