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1. WO2006099348 - SYSTEMS AND METHODS FOR BEAMFORMING IN MULTI-INPUT MULTI-OUTPUT COMMUNICATION SYSTEMS

Publication Number WO/2006/099348
Publication Date 21.09.2006
International Application No. PCT/US2006/008986
International Filing Date 09.03.2006
IPC
H04B 7/06 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
06at the transmitting station
H04L 27/26 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
CPC
H04B 7/0417
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
0413MIMO systems
0417Feedback systems
H04B 7/0617
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
0617for beam forming
H04B 7/063
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
0621Feedback content
063Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
H04B 7/0632
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
0621Feedback content
0632Channel quality parameters, e.g. channel quality indicator [CQI]
H04L 25/0224
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
0202Channel estimation
0224using sounding signals
H04L 27/261
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
2601Multicarrier modulation systems
2602Signal structure
261Details of reference signals
Applicants
  • QUALCOMM INCORPORATED [US]/[US] (AllExceptUS)
  • SAMPATH, Hemanth [IN]/[US] (UsOnly)
  • KADOUS, Tamer [EG]/[US] (UsOnly)
  • GOROKHOV, Alexei [FR]/[US] (UsOnly)
  • GORE, Dhananjay, Ashok [IN]/[US] (UsOnly)
Inventors
  • SAMPATH, Hemanth
  • KADOUS, Tamer
  • GOROKHOV, Alexei
  • GORE, Dhananjay, Ashok
Agents
  • WADSWORTH, Philip, R.
Priority Data
11/186,15220.07.2005US
60/660,71910.03.2005US
60/678,61006.05.2005US
60/691,43216.06.2005US
60/691,46716.06.2005US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEMS AND METHODS FOR BEAMFORMING IN MULTI-INPUT MULTI-OUTPUT COMMUNICATION SYSTEMS
(FR) SYSTEMES ET PROCEDES DE MISE EN FORME DU FAISCEAU DANS DES SYSTEMES DE COMMUNICATION A ENTREES MULTIPLES ET SORTIES MULTIPLES
Abstract
(EN)
Methods and apparatuses are disclosed that utilize information from less than all transmission paths from a transmitter to form beamforming weights for transmission. In addition, methods and apparatuses are disclosed that utilize channel information, such as CQI, eigenbeam weights, and/or channel estimates, to form beamforming weights.
(FR)
L'invention concerne des procédés et des appareils qui utilisent des informations provenant de moins de la totalité des voies de transmission d'un émetteur pour former des poids de mise en forme du faisceau destinés à la transmission. L'invention concerne en outre des procédés et des appareils qui utilisent des informations de voie, telles que CQI, des poids de faisceau propre et/ou des estimations de voie, pour former des poids de mise en forme du faisceau.
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