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公开(公告)号：ES2373662T3
公开(公告)日：2012-02-07
申请号：ES04814424
申请日：2004-12-15
Applicant: QUALCOMM INC
Inventor： WALTON JAY RODNEY , ZHENG LIZHONG , KETCHUM JOHN W , WALLACE MARK S , HOWARD STEVEN J
Abstract: Un procedimiento de provisión de datos para su transmisión en un sistema de comunicación inalámbrica de múltiple entrada y múltiple salida MIMO, comprendiendo el procedimiento: procesar datos (112, 114) para obtener al menos un bloque de símbolos de datos; dividir (114) el al menos un bloque de símbolos de datos en una pluralidad de sub-bloques de símbolos de datos; seleccionar (118) una matriz de orientación para cada sub-bloque de símbolos de datos; procesar espacialmente (118, 120) el al menos un bloque de símbolos de datos con una pluralidad de matrices de orientación para obtener una pluralidad de secuencias de símbolos de transmisión, correspondiendo cada secuencia a un sub-bloque diferente del al menos un bloque de símbolos de datos, en el que procesar espacialmente el al menos un bloque de símbolos de datos comprende procesar espacialmente cada sub-bloque de símbolos de datos con la matriz de orientación seleccionada para ese sub-bloque; proporcionar (122) la pluralidad de secuencias de símbolos de transmisión a una pluralidad de antenas de transmisión para su transmisión, en el que la pluralidad de matrices de orientación aleatorizan un canal MIMO efectivo observado por una entidad de recepción para el al menos un bloque de símbolos de datos realizando el procesamiento espacial con la pluralidad de matrices de orientación.
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公开(公告)号：MXPA06006917A
公开(公告)日：2006-09-04
申请号：MXPA06006917
申请日：2004-12-15
Applicant: QUALCOMM INC
Inventor： ZHENG LIZHONG
Abstract: La difusion espacial se realiza en un sistema multi-antena para aleatorizar un "canal util" observado por una entidad receptora para cada bloque de simbolo de datos transmitido. Para un sistema MIMO, en una entidad transmisora, se procesan los datos (por ejemplo, se codifican, intercalan, y modulan) para obtener los bloques de simbolos de datos ND que seran transmitidos en lapsos de transmision NM en donde ND = 1 y NM > 1. Los bloques ND se dividen en sub-bloques de simbolos de datos NM, un sub-bloque para cada lapso de transmision. Se selecciona una matriz de direccion (por ejemplo, de forma determinista o pseudo-aleatoria de entre un conjunto de matrices de direccion L, en donde L > 1) para cada sub-bloque. Cada sub-bloque de simbolo de datos se procesa espacialmente con la matriz de direccion seleccionada para ese sub-bloque y asi obtener los simbolos de transmision que se procesan y transmiten adicionalmente via las antenas de transmision NT en un lapso de transmision. Los bloques del simbolo de datos ND de esta forma se procesan espacialmente con las matrices de direccion NM y se observa un conjunto de canales.
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公开(公告)号：AU2004300468C1
公开(公告)日：2009-10-01
申请号：AU2004300468
申请日：2004-12-15
Applicant: QUALCOMM INC
Inventor： ZHENG LIZHONG , WALLACE MARK S , WALTON JAY RODNEY , KETCHUM JOHN W , HOWARD STEVEN J
Abstract: Spatial spreading is performed in a multi-antenna system to randomize an “effective” channel observed by a receiving entity for each transmitted data symbol block. For a MIMO system, at a transmitting entity, data is processed (e.g., encoded, interleaved, and modulated) to obtain ND data symbol blocks to be transmitted in NM transmission spans, where ND≥1 and NM>1. The ND blocks are partitioned into NM data symbol subblocks, one subblock for each transmission span. A steering matrix is selected (e.g., in a deterministic or pseudo-random manner from among a set of L steering matrices, where L>1) for each subblock. Each data symbol subblock is spatially processed with the steering matrix selected for that subblock to obtain transmit symbols, which are further processed and transmitted via NT transmit antennas in one transmission span. The ND data symbol blocks are thus spatially processed with NM steering matrices and observe an ensemble of channels.
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公开(公告)号：BRPI0417675A
公开(公告)日：2007-03-20
申请号：BRPI0417675
申请日：2004-12-15
Applicant: QUALCOMM INC
Inventor： WALTON JAY RODNEY , ZHENG LIZHONG , KETCHUM JOHN W , WALLACE MARK S , HOWARD STEVEN J
Abstract: Spatial spreading is performed in a multi-antenna system to randomize an “effective” channel observed by a receiving entity for each transmitted data symbol block. For a MIMO system, at a transmitting entity, data is processed (e.g., encoded, interleaved, and modulated) to obtain ND data symbol blocks to be transmitted in NM transmission spans, where ND≥1 and NM>1. The ND blocks are partitioned into NM data symbol subblocks, one subblock for each transmission span. A steering matrix is selected (e.g., in a deterministic or pseudo-random manner from among a set of L steering matrices, where L>1) for each subblock. Each data symbol subblock is spatially processed with the steering matrix selected for that subblock to obtain transmit symbols, which are further processed and transmitted via NT transmit antennas in one transmission span. The ND data symbol blocks are thus spatially processed with NM steering matrices and observe an ensemble of channels.
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公开(公告)号：CA2549093C
公开(公告)日：2012-02-14
申请号：CA2549093
申请日：2004-12-15
Applicant: QUALCOMM INC
Inventor： WALTON JAY RODNEY , ZHENG LIZHONG , KETCHUM JOHN W , WALLACE MARK S , HOWARD STEVEN J
Abstract: Spatial spreading is performed in a multi-antenna system to randomize an "effective" channel observed by a receiving entity for each transmitted data symbol block. For a MIMO system, at a transmitting entity, data is processed (e.g., encoded, interleaved, and modulated) to obtain ND data symbol blocks to be transmitted in NM transmission spans, where ND >= 1 and NM> 1. The ND blocks are partitioned into NM data symbol subblocks, one subblock for each transmission span. A steering matrix is selected (e.g., in a deterministic or pseudo-random manner from among a set of L steering matrices, where L > 1) for each subblock. Each data symbol subblock is spatially processed with the steering matrix selected for that subblock to obtain transmit symbols, which are further processed and transmitted via NT transmit antennas in one transmission span. The ND data symbol blocks are thus spatially processed with NM steering matrices and observe an ensemble of channels.
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Patent Agency Ranking
公开(公告)号：AT531154T
公开(公告)日：2011-11-15
申请号：AT04814424
申请日：2004-12-15
Applicant: QUALCOMM INC
Inventor： WALTON JAY RODNEY , ZHENG LIZHONG , KETCHUM JOHN W , WALLACE MARK S , HOWARD STEVEN J
Abstract: Spatial spreading is performed in a multi-antenna system to randomize an “effective” channel observed by a receiving entity for each transmitted data symbol block. For a MIMO system, at a transmitting entity, data is processed (e.g., encoded, interleaved, and modulated) to obtain ND data symbol blocks to be transmitted in NM transmission spans, where ND≥1 and NM>1. The ND blocks are partitioned into NM data symbol subblocks, one subblock for each transmission span. A steering matrix is selected (e.g., in a deterministic or pseudo-random manner from among a set of L steering matrices, where L>1) for each subblock. Each data symbol subblock is spatially processed with the steering matrix selected for that subblock to obtain transmit symbols, which are further processed and transmitted via NT transmit antennas in one transmission span. The ND data symbol blocks are thus spatially processed with NM steering matrices and observe an ensemble of channels.
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公开(公告)号：AU2009213062A1
公开(公告)日：2009-10-08
申请号：AU2009213062
申请日：2009-09-10
Applicant: QUALCOMM INC
Inventor： WALTON JAY RODNEY , KETCHUM JOHN W , WALLACE MARK S , HOWARD STEVEN J , ZHENG LIZHONG
Abstract: Spatial spreading is performed in a multi-antenna system to randomize an “effective” channel observed by a receiving entity for each transmitted data symbol block. For a MIMO system, at a transmitting entity, data is processed (e.g., encoded, interleaved, and modulated) to obtain ND data symbol blocks to be transmitted in NM transmission spans, where ND≥1 and NM>1. The ND blocks are partitioned into NM data symbol subblocks, one subblock for each transmission span. A steering matrix is selected (e.g., in a deterministic or pseudo-random manner from among a set of L steering matrices, where L>1) for each subblock. Each data symbol subblock is spatially processed with the steering matrix selected for that subblock to obtain transmit symbols, which are further processed and transmitted via NT transmit antennas in one transmission span. The ND data symbol blocks are thus spatially processed with NM steering matrices and observe an ensemble of channels.
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公开(公告)号：AU2004300468B2
公开(公告)日：2009-05-07
申请号：AU2004300468
申请日：2004-12-15
Applicant: QUALCOMM INC
Inventor： ZHENG LIZHONG , WALLACE MARK S , WALTON JAY RODNEY , KETCHUM JOHN W , HOWARD STEVEN J
Abstract: Spatial spreading is performed in a multi-antenna system to randomize an “effective” channel observed by a receiving entity for each transmitted data symbol block. For a MIMO system, at a transmitting entity, data is processed (e.g., encoded, interleaved, and modulated) to obtain ND data symbol blocks to be transmitted in NM transmission spans, where ND≥1 and NM>1. The ND blocks are partitioned into NM data symbol subblocks, one subblock for each transmission span. A steering matrix is selected (e.g., in a deterministic or pseudo-random manner from among a set of L steering matrices, where L>1) for each subblock. Each data symbol subblock is spatially processed with the steering matrix selected for that subblock to obtain transmit symbols, which are further processed and transmitted via NT transmit antennas in one transmission span. The ND data symbol blocks are thus spatially processed with NM steering matrices and observe an ensemble of channels.
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公开(公告)号：CA2549093A1
公开(公告)日：2005-06-30
申请号：CA2549093
申请日：2004-12-15
Applicant: QUALCOMM INC
Inventor： ZHENG LIZHONG , WALLACE MARK S , KETCHUM JOHN W , WALTON JAY RODNEY , HOWARD STEVEN J
Abstract: Spatial spreading is performed in a multi-antenna system to randomize an "effective" channel observed by a receiving entity for each transmitted data symbol block. For a MIMO system, at a transmitting entity, data is processed (e.g., encoded, interleaved, and modulated) to obtain ND data symbol blocks to be transmitted in NM transmission spans, where ND >= 1 and NM> 1. The ND blocks are partitioned into NM data symbol subblocks, one subblock for each transmission span. A steering matrix is selected (e.g., in a deterministic o r pseudo-random manner from among a set of L steering matrices, where L > 1 ) for each subblock. Each data symbol subblock is spatially processed with the steering matrix selected for that subblock to obtain transmit symbols, which are further processed and transmitted via NT transmit antennas in one transmission span. The ND data symbol blocks are thus spatially processed wi th NM steering matrices and observe an ensemble of channels.
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公开(公告)号：AU2004300468A1
公开(公告)日：2005-06-30
申请号：AU2004300468
申请日：2004-12-15
Applicant: QUALCOMM INC
Inventor： ZHENG LIZHONG , WALLACE MARK S , WALTON JAY RODNEY , KETCHUM JOHN W , HOWARD STEVEN J
Abstract: Spatial spreading is performed in a multi-antenna system to randomize an “effective” channel observed by a receiving entity for each transmitted data symbol block. For a MIMO system, at a transmitting entity, data is processed (e.g., encoded, interleaved, and modulated) to obtain ND data symbol blocks to be transmitted in NM transmission spans, where ND≥1 and NM>1. The ND blocks are partitioned into NM data symbol subblocks, one subblock for each transmission span. A steering matrix is selected (e.g., in a deterministic or pseudo-random manner from among a set of L steering matrices, where L>1) for each subblock. Each data symbol subblock is spatially processed with the steering matrix selected for that subblock to obtain transmit symbols, which are further processed and transmitted via NT transmit antennas in one transmission span. The ND data symbol blocks are thus spatially processed with NM steering matrices and observe an ensemble of channels.
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