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1. WO2018217657 - WAKEUP RADIO (WUR) PREAMBLE DESIGN

Publication Number WO/2018/217657
Publication Date 29.11.2018
International Application No. PCT/US2018/033726
International Filing Date 21.05.2018
IPC
H04W 52/02 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management
02Power saving arrangements
CPC
H04W 28/065
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
28Network traffic or resource management
02Traffic management, e.g. flow control or congestion control
06Optimizing ; the usage of the radio link; , e.g. header compression, information sizing ; , discarding information
065using assembly or disassembly of packets
H04W 52/0225
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
02Power saving arrangements
0209in terminal devices
0225using monitoring of external events, e.g. the presence of a signal
H04W 52/0235
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
02Power saving arrangements
0209in terminal devices
0225using monitoring of external events, e.g. the presence of a signal
0235where the received signal is a power saving command
H04W 84/12
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
84Network topologies
02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
10Small scale networks; Flat hierarchical networks
12WLAN [Wireless Local Area Networks]
Y02D 30/70
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
30Reducing energy consumption in communication networks
70in wireless communication networks
Applicants
  • MARVELL WORLD TRADE LTD. [BB]/[BB]
  • MARVELL SEMICONDUCTOR INC. [US]/[US] (US)
Inventors
  • CAO, Rui
  • ZHANG, Hongyuan
Agents
  • STANTON, Gregory, E.
  • RUPP, Brian, C.
  • LIN, Gordon, K.
  • WULFF, Richard, A.
  • BEYER, Carrie, A.
Priority Data
62/511,51626.05.2017US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) WAKEUP RADIO (WUR) PREAMBLE DESIGN
(FR) CONCEPTION DE PRÉAMBULE RADIO DE RÉVEIL (WUR)
Abstract
(EN)
A first communication device generates a first portion of a wakeup packet, which corresponds to a legacy physical layer protocol (PHY) preamble corresponding to a communication protocol, and includes a first orthogonal frequency division multiplexing (OFDM) symbol that spans a first bandwidth. The first communication device generates a second OFDM symbol, which spans the first bandwidth. The first communication device generates a second portion of the wakeup packet, which does not conform to the communication protocol and is configured to prompt a wakeup radio at a second communication device to prompt a network interface at the second communication device to transition from a low power state to an active state. The first communication device transmits the wakeup packet. Modulation of the second OFDM symbol according to a modulation scheme signals to third communication devices operating according to the communication protocol that the wakeup packet does not conform to the communication protocol.
(FR)
L'invention concerne un premier dispositif de communication qui produit une première partie d'un paquet de réveil, qui correspond à un préambule traditionnel de protocole de couche physique (PHY) correspondant à un protocole de communication, et qui comprend un premier symbole de multiplexage par répartition orthogonale de la fréquence (OFDM) qui couvre une première largeur de bande. Le premier dispositif de communication produit un second symbole OFDM, qui couvre la première bande passante. Le premier dispositif de communication génère une seconde partie du paquet de réveil, qui n'est pas conforme au protocole de communication et qui est configurée pour inviter une radio de réveil, au niveau d'un second dispositif de communication, à inviter une interface réseau à passer d'un état de faible puissance à un état actif au niveau du second dispositif de communication. Le premier dispositif de communication transmet le paquet de réveil. Selon un procédé de modulation, la modulation du second symbole d'OFDM signale à des troisièmes dispositifs de communication fonctionnant selon le protocole de communication que le paquet de réveil n'est pas conforme au protocole de communication.
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