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公开(公告)号：CA2392668A1
公开(公告)日：2003-01-30
申请号：CA2392668
申请日：2002-07-05
Applicant: LUCENT TECHNOLOGIES INC
Inventor： SONI ROBERT ATMARAM , BENNING ROGER DAVID , BUEHRER R MICHAEL
Abstract: Disclosed is a method and apparatus of transmit diversity that is backward compatible and does not significantly degrade performance in additi ve white guassan noise (AWGN) conditions using a transmission architecture that incorporates a form of phase sweep transmit diversity (PSTD) referred to herein as biased PSTD. Biased PSTD involves transmitting a signal and a frequency swep t version of the same signal over diversity antennas at different power levels . By transmitting the two signals at different power levels, the depths of nulls normally seen in AWGN conditions when PSTD is utilized is reduced and performance degradation in AWGN conditions is mitigated.
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公开(公告)号：AU7209400A
公开(公告)日：2001-06-21
申请号：AU7209400
申请日：2000-12-07
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BENNING ROGER DAVID , SONI ROBERT ATMARAM , BUEHRER R MICHAEL
Abstract: Disclosed is a method and apparatus for enhancing diversity gain without reducing data rate by increasing the number of antenna elements and configuring the antenna elements for improving signal-te-noise ratio at a receiver. The antenna array comprise a first antenna group with at least two antenna elements and a second antenna group with at least one antenna element. The first and second antenna groups are spaced approximately ten carrier wavelengths or more apart from each other, and the antenna elements belonging to the first antenna group are spaced approximately a half carrier wavelength or less apart from each other. A plurality of data streams is generated from a signal and used to produce a first and second plurality of representative data streams. Each of the first plurality of representative data streams is phase-shifted and encoded using different orthogonal codes, and each of the second plurality of representative data streams is encoded using different orthogonal codes, wherein a different orthogonal code is used to encode representative data streams in the first and second plurality of representative data streams generated from a same data stream, and the first and second plurality of representative data streams allow for the plurality of data streams to be recovered at a receiver after encoding. The encoded and phase shifted first plurality of representative data streams being transmitted over the first antenna group, and the encoded second plurality of representative data streams being transmitted over the second antenna group.
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公开(公告)号：AU3024900A
公开(公告)日：2000-11-09
申请号：AU3024900
申请日：2000-05-02
Applicant: LUCENT TECHNOLOGIES INC
Inventor： AIKEN RICHARD THOMAS , BENNING ROGER DAVID , SOLONDZ MAX AARON , ZIESSE NORMAN GERARD
Abstract: An antenna array system (10) includes a first array (12) for operating in a transmit mode and a receive mode and a second array (14) spaced apart for operating in the receive mode. A receiver (18) adjusts a receive radiation pattern in the receive mode and provides a control signal for a transmit radiation pattern of the transmit mode.
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公开(公告)号：DE60019083T2
公开(公告)日：2006-02-02
申请号：DE60019083
申请日：2000-12-18
Applicant: LUCENT TECHNOLOGIES INC
Inventor： AIKEN RICHARD THOMAS , BENNING ROGER DAVID , UPTEGROVE DIRCK
Abstract: A method and system for adaptive signal processing for an antenna array reduces the requisite computations for executing an adaptive algorithm that combines or digitally filters baseband receive signals. The system receives uplink electromagnetic signals from a phased array and uplink electromagnetic signals from a diversity array during the reception of a desired electromagnetic signal transmitted by a desired mobile station. The uplink signals are converted into baseband signals for digital signal processing. The baseband signals are observable as a series of successive time slots. The system determines uplink coarse combining weights associated with the uplink baseband signals of the phased array and downlink coarse combining weights associated with the downlink baseband signals of the phased array. The baseband uplink signals are summed into as few as one resultant baseband signal during or after application of the coarse combining weights to the baseband uplink signals. The system determines fine combining weights for one or more resultant baseband signals and the baseband uplink signals on a symbol-by-symbol basis, or on any durational basis less than a time slot, to combine the signals into a single enhanced baseband signal for symbol detection.
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公开(公告)号：CA2326865C
公开(公告)日：2005-11-01
申请号：CA2326865
申请日：2000-11-24
Applicant: LUCENT TECHNOLOGIES INC
Inventor： SONI ROBERT ATMARAM , BUEHRER R MICHAEL , BENNING ROGER DAVID
Abstract: Disclosed is a method and apparatus for enhancing diversity gain withou t reducing data rate by increasing the number of antenna elements and configuring the antenna elements for improving signal-to-noise ratio at a receiver. The antenna arra y comprise a first antenna group with at least two antenna elements and a second antenna group with at least one antenna element. The first and second antenna groups are spaced approximatel y ten carrier wavelengths or more apart from each other, and the antenna elements belongin g to the first antenna group are spaced approximately a half carrier wavelength or less apa rt from each other. A plurality of data streams is generated from a signal and used to produce a first and second plurality of representative data streams. Each of the first plurality of representative data streams is phase-shifted and encoded using different orthogonal codes, and each of t he second plurality of representative data streams is encoded using different orthogonal codes, wherein a different orthogonal code is used to encode representative data streams in the first a nd second plurality of representative data streams generated from a same data stream, and the first and second plurality of representative data streams allow for the plurality of data streams to be recovered at a receiver after encoding. The encoded and phase shifted first plurality of representative data streams being transmitted over the first antenna group, and the encoded second plurality o f representative data streams being transmitted over the second antenna group.
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Patent Agency Ranking
公开(公告)号：CA2330021A1
公开(公告)日：2001-07-11
申请号：CA2330021
申请日：2001-01-02
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BENNING ROGER DAVID , UPTEGROVE DIRCK , AIKEN RICHARD THOMAS
IPC: H01Q3/26 , H01Q3/24 , H04B1/44 , H04B7/06 , H04B7/08 , H04B7/10 , H04B7/005 , H01Q21/00 , H04B7/02 , H04B1/18
Abstract: A method and system for adaptive signal processing for an antenna array reduces the requisite computations for executing an adaptive algorithm that combines or digitally filters baseband receive signals. The system receives uplink electromagnetic signals from a phased array and uplink electromagnetic signals from a diversity array during the reception o f a desired electromagnetic signal transmitted by a desired mobile station. The uplink signals are converted into baseband signals for digital sign al processing. The baseband signals are observable as a series of successive time slots. The system determines uplink coarse combining weights associated with the uplink baseband signals of the phased array and downlink coarse combining weights associated with the downlink baseband signals of the phased array. The baseband uplink signals are summed into as few as one resultant baseband signal during or after application of the coarse combining weights to the baseband uplink signals. The system determines fine combining weights for one or more resultant baseband signals and the baseband uplink signals on a symbol-by-symbol basis, or on any durational basis less than a time slot, to combine the signals into a single enhanced baseband signal for symbol detection.
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公开(公告)号：CA2326865A1
公开(公告)日：2001-06-15
申请号：CA2326865
申请日：2000-11-24
Applicant: LUCENT TECHNOLOGIES INC
Inventor： SONI ROBERT ATMARAM , BUEHRER R MICHAEL , BENNING ROGER DAVID
Abstract: Disclosed is a method and apparatus for enhancing diversity gain withou t reducing data rate by increasing the number of antenna elements and configuring the antenna elements for improving signal-to-noise ratio at a receiver. The antenna arra y comprise a first antenna group with at least two antenna elements and a second antenna group with at least one antenna element. The first and second antenna groups are spaced approximatel y ten carrier wavelengths or more apart from each other, and the antenna elements belongin g to the first antenna group are spaced approximately a half carrier wavelength or less apa rt from each other. A plurality of data streams is generated from a signal and used to produce a first and second plurality of representative data streams. Each of the first plurality of representative data streams is phase-shifted and encoded using different orthogonal codes, and each of t he second plurality of representative data streams is encoded using different orthogonal codes, wherein a different orthogonal code is used to encode representative data streams in the first a nd second plurality of representative data streams generated from a same data stream, and the first and second plurality of representative data streams allow for the plurality of data streams to be recovered at a receiver after encoding. The encoded and phase shifted first plurality of representative data streams being transmitted over the first antenna group, and the encoded second plurality o f representative data streams being transmitted over the second antenna group.
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公开(公告)号：MX9702929A
公开(公告)日：1997-10-31
申请号：MX9702929
申请日：1997-04-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BENNING ROGER DAVID , BROWNING DOUGLAS ROY , ZIPFEL GEORGE GUSTAVE JR
Abstract: Se proporciona un método y aparato para estabilizar al menos un elemento de un sistema mecánico contra respuestas similares a ecos a perturbaciones mecánicas. Una o más señales de error son proporcionados detectando el movimiento del sistema en uno o más puntos. Al menos un filtro adaptable se opera en respuesta a las señales o señales de error, y en respuesta a al menos una señal de referencia no anticipada que está directamente relacionado con algun movimiento del sistema. El filtro adaptable produce una señal correctiva para accionar un dispositivo de accionamiento mecánico, aplicando por lo tanto al elemento una fuerza generalizada, estabilizadora. Por no anticipada se entiende que existe un punto de retraso de cero o negativo entre la presencia de una señal dada y el lugar de deteccion de referencia y el arribo de una señal, o una similar, en el lugar de deteccion del error. En las modalidades particulares de la invencion, el lugar de deteccion de referencia es el mismo que el lugar de deteccion del error.
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公开(公告)号：CA2392668C
公开(公告)日：2007-02-20
申请号：CA2392668
申请日：2002-07-05
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BUEHRER R MICHAEL , BENNING ROGER DAVID , SONI ROBERT ATMARAM
Abstract: Disclosed is a method and apparatus of transmit diversity that is backward compatible and does not significantly degrade performance in additi ve white guassan noise (AWGN) conditions using a transmission architecture that incorporates a form of phase sweep transmit diversity (PSTD) referred to herein as biased PSTD. Biased PSTD involves transmitting a signal and a frequency swep t version of the same signal over diversity antennas at different power levels . By transmitting the two signals at different power levels, the depths of nulls normally seen in AWGN conditions when PSTD is utilized is reduced and performance degradation in AWGN conditions is mitigated.
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公开(公告)号：DE60018371T2
公开(公告)日：2006-04-13
申请号：DE60018371
申请日：2000-12-04
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BENNING ROGER DAVID , BUEHRER R MICHAEL , SONI ROBERT ATMARAN
Abstract: Disclosed is a method and apparatus for enhancing diversity gain without reducing data rate by increasing the number of antenna elements and configuring the antenna elements for improving signal-te-noise ratio at a receiver. The antenna array comprise a first antenna group with at least two antenna elements and a second antenna group with at least one antenna element. The first and second antenna groups are spaced approximately ten carrier wavelengths or more apart from each other, and the antenna elements belonging to the first antenna group are spaced approximately a half carrier wavelength or less apart from each other. A plurality of data streams is generated from a signal and used to produce a first and second plurality of representative data streams. Each of the first plurality of representative data streams is phase-shifted and encoded using different orthogonal codes, and each of the second plurality of representative data streams is encoded using different orthogonal codes, wherein a different orthogonal code is used to encode representative data streams in the first and second plurality of representative data streams generated from a same data stream, and the first and second plurality of representative data streams allow for the plurality of data streams to be recovered at a receiver after encoding. The encoded and phase shifted first plurality of representative data streams being transmitted over the first antenna group, and the encoded second plurality of representative data streams being transmitted over the second antenna group.
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