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1. WO2010056885 - METHOD AND APPARATUS FOR DIRECTIONAL CHANNEL ACCESS IN A WIRELESS COMMUNICATIONS SYSTEM

Publication Number WO/2010/056885
Publication Date 20.05.2010
International Application No. PCT/US2009/064237
International Filing Date 12.11.2009
Chapter 2 Demand Filed 10.07.2010
IPC
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
H04B 7/04 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
H04W 8/00 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
8Network data management
CPC
H04B 7/0408
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
0408using two or more beams, i.e. beam diversity
H04B 7/0619
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
0619using feedback from receiving side
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 7/086
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
0837using pre-detection combining
0842Weighted combining
086using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
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 1/0631
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
02by diversity reception
06using space diversity
0618Space-time coding
0631Receiver arrangements
Applicants
  • QUALCOMM INCORPORATED [US]/[US] (AllExceptUS)
  • LAKKIS, Ismail [US]/[US] (UsOnly)
  • BRACHA, Vered Bar [IL]/[IL] (UsOnly)
Inventors
  • LAKKIS, Ismail
  • BRACHA, Vered Bar
Agents
  • VO, Dang M.
Priority Data
12/483,98712.06.2009US
61/113,60212.11.2008US
61/164,42228.03.2009US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR DIRECTIONAL CHANNEL ACCESS IN A WIRELESS COMMUNICATIONS SYSTEM
(FR) PROCÉDÉ ET APPAREIL PERMETTANT UN ACCÈS À UN CANAL DIRECTIONNEL DANS UN SYSTÈME DE COMMUNICATION SANS FIL
Abstract
(EN)
A method of wireless communications is provided. The method includes detecting at least a portion of a preamble of a packet transmitted by a first device by sweeping over a plurality of receive directions; receiving and decoding a header of the packet based on a first receive direction to identify that the first device had transmitted the packet; and completing reception of the packet based on a second receive direction. An apparatus for performing the method is also disclosed.
(FR)
La présente invention concerne un procédé de communication sans fil. Le procédé comprend la détection d'au moins une partie d'un préambule d'un paquet transmis par un premier dispositif par balayage d'une pluralité de directions de réception; la réception et le décodage d'un en-tête du paquet en fonction d'une première direction de réception, de manière à identifier que le premier dispositif a transmis le paquet; et l'achèvement de la réception du paquet en fonction d'une seconde direction de réception. L'invention porte également sur un appareil permettant de réaliser le procédé.
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