公开(公告)号：USRE44959E1

公开(公告)日：2014-06-24

申请号：US10702053

申请日：2003-11-05

Applicant: Arogyaswami J. Paulraj ,  Peroor K. Sebastian ,  David J. Gesbert ,  Jose Tellado

Inventor： Arogyaswami J. Paulraj ,  Peroor K. Sebastian ,  David J. Gesbert ,  Jose Tellado

IPC: H04B7/02 ,  H04L1/02

CPC classification number: H04B7/0891 ,  H01Q1/246 ,  H01Q3/2605 ,  H04B7/0669 ,  H04B7/0673 ,  H04B7/0697 ,  H04B7/0857 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/06 ,  H04L1/0606 ,  H04L1/0618

Abstract: A method of maximizing a communication parameter, such as data capacity, signal quality or throughput of a channel between a transmit unit with M transmit antennas and a receive unit with N receive antennas and a communication system such as a wireless network (including networks with multiple access techniques such as TDMA, FDMA, CDMA, OFDMA) employing the method. The data is first processed to produce parallel spatial-multiplexed streams SMi, where i=1 . . . k, which are converted or mapped to transmit signals TSp, where p=1 . . . M, assigned for transmission from the M transmit antennas. Corresponding receive signals RSj, where j=1 . . . N, are received by the N receive antennas of the receiver and used to assess a quality parameter, such as a statistical signal parameter including SINR, SNR, power level, level crossing rate, level crossing duration of the signal of a predetermined threshold and reception threshold, or a parameter of the data, such as BER or packet error rate. The quality parameter is used to adaptively adjust k as well as other parameters such as coding and mapping to transmit antennas such that the communication parameter of the channel is maximized.

Abstract translation: 使具有M个发送天线的发送单元和具有N个接收天线的接收单元之间的信道的数据容量，信号质量或吞吐量等通信参数最大化的方法以及诸如无线网络的通信系统（包括具有多个 接入技术，如TDMA，FDMA，CDMA，OFDMA）。 首先处理数据以产生并行空间复用流SMi，其中i = 1。 。 。 k，其被转换或映射到发射信号TSp，其中p = 1。 。 。 M，被分配用于从M个发射天线发射。 相应的接收信号RSj，其中j = 1。 。 。 N由接收机的N个接收天线接收并且用于评估质量参数，诸如包括SINR，SNR，功率电平，电平穿越率，预定阈值的信号的电平穿越持续时间和接收的统计信号参数 阈值或数据的参数，例如BER或分组错误率。 质量参数用于自适应地调整k以及其他参数，例如编码和映射到发射天线，使得信道的通信参数最大化。

公开(公告)号：US20100318861A1

公开(公告)日：2010-12-16

申请号：US12823267

申请日：2010-06-25

Applicant: David J. Gesbert ,  Severine E. Catreux ,  Robert W. Heath, JR. ,  Peroor K. Sebastian ,  Arogyaswami J. Paulraj

Inventor： David J. Gesbert ,  Severine E. Catreux ,  Robert W. Heath, JR. ,  Peroor K. Sebastian ,  Arogyaswami J. Paulraj

IPC: H04W40/00 ,  G06F11/00

CPC classification number: H04L1/06 ,  H04L1/0001 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0021 ,  H04L1/0026 ,  H04L1/0033 ,  H04L1/20

Abstract: A method and communication system for selecting a mode for encoding data for transmission in a wireless communication channel between a transmit unit and a receive unit. The data is initially transmitted in an initial mode and the selection of the subsequent mode is based on a selection of first-order and second-order statistical parameters of short-term and long-term quality parameters. Suitable short-term quality parameters include signal-to-interference and noise ratio (SINR), signal-to-noise ratio (SNR), power level and suitable long-term quality parameters include error rates such as bit error rate (BER) and packet error rate (PER). The method of the invention can be employed in Multiple Input Multiple Output (MIMO), Multiple Input Single Output (MISO), Single Input Single Output (SISO) and Single Input Multiple Output (SIMO) communication systems to make subsequent mode selection faster and more efficient. Furthermore the method can be used in communication systems employing various transmission protocols including OFDMA, FDMA, CDMA, TDMA.

Abstract translation: 一种用于选择用于在发送单元和接收单元之间的无线通信信道中进行数据传输的模式的方法和通信系统。 最初以初始模式发送数据，并且随后的模式的选择是基于对短期和长期质量参数的一阶和二阶统计参数的选择。 合适的短期质量参数包括信噪比和噪声比（SINR），信噪比（SNR），功率电平和合适的长期质量参数，包括错误率，如误码率（BER）和 数据包错误率（PER）。 本发明的方法可以用于多输入多输出（MIMO），多输入单输出（MISO），单输入单输出（SISO）和单输入多输出（SIMO）通信系统中，以使后续模式选择更快，更多 高效。 此外，该方法可以用于采用包括OFDMA，FDMA，CDMA，TDMA的各种传输协议的通信系统。

公开(公告)号：US6067290A

公开(公告)日：2000-05-23

申请号：US364146

申请日：1999-07-30

Applicant: Arogyaswami J. Paulraj ,  Robert W. Heath, Jr. ,  Peroor K. Sebastian ,  David J. Gesbert

Inventor： Arogyaswami J. Paulraj ,  Robert W. Heath, Jr. ,  Peroor K. Sebastian ,  David J. Gesbert

IPC: H04B7/06 ,  H04B7/26 ,  H04L12/28 ,  H04L12/56 ,  H04W16/02 ,  H04W16/12 ,  H04W16/24 ,  H04W16/28 ,  H04W28/12 ,  H04W36/00 ,  H04W74/04 ,  H04W80/00 ,  H04W84/04 ,  H04W88/02 ,  H04W88/08 ,  H04Q7/28 ,  H03D3/22 ,  H04B7/185 ,  H04B7/216

CPC classification number: H04W16/12 ,  H04B7/0613 ,  H04B7/2612 ,  H04W16/02 ,  H04W28/12 ,  H04W88/08 ,  H04W16/24 ,  H04W16/28 ,  H04W36/00 ,  H04W72/0446 ,  H04W74/04 ,  H04W80/00 ,  H04W84/042 ,  H04W88/02

Abstract: The present invention provides methods and apparatus for implementing spatial multiplexing in conjunction with the one or more multiple access protocols during the broadcast of information in a wireless network. A wireless cellular network for transmitting subscriber datastream(s) to corresponding ones among a plurality of subscriber units located within the cellular network is disclosed. The wireless cellular network includes base stations and a logic. The base stations each include spatially separate transmitters for transmitting, in response to control signals, selected substreams of each subscriber datastream on an assigned channel of a multiple access protocol. The logic communicates with each of the base stations. The logic assigns an available channel on which to transmit each subscriber datastream. The logic routes at least a substream of each datastream to at least a selected one of the base stations. The logic also generates control signals to configure the at least a selected one of the base stations to transmit the selected substreams to a corresponding one among the plurality of subscriber units on the assigned channel. A subscriber unit for use in a cellular system is also disclosed. The subscriber unit includes: spatially separate receivers, a spatial processor, and a combiner. The spatially separate receivers receive the assigned channel composite signals resulting from the spatially separate transmission of the subscriber downlink datastream(s). The spatial processor is configurable in response to a control signal transmitted by the base station to separate the composite signals into estimated substreams based on information obtained during the transmission of known data patterns from at least one of the base stations. The spatial processor signals the base stations when a change of a spatial transmission configuration is required. The combiner combines the estimated substreams into a corresponding subscriber datastream.

公开(公告)号：US20110179336A1

公开(公告)日：2011-07-21

申请号：US13076999

申请日：2011-03-31

Applicant: David J. Gesbert ,  Severine E. Catreux ,  Robert W. Heath, JR. ,  Peroor K. Sebastian ,  Arogyaswami J. Paulraj

Inventor： David J. Gesbert ,  Severine E. Catreux ,  Robert W. Heath, JR. ,  Peroor K. Sebastian ,  Arogyaswami J. Paulraj

IPC: G06F11/08

CPC classification number: H04L1/06 ,  H04L1/0001 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0021 ,  H04L1/0026 ,  H04L1/0033 ,  H04L1/20

Abstract: A method and communication system for selecting a mode for encoding data for transmission in a wireless communication channel between a transmit unit and a receive unit. The data is initially transmitted in an initial mode and the selection of the subsequent mode is based on a selection of first-order and second-order statistical parameters of short-term and long-term quality parameters. Suitable short-term quality parameters include signal-to-interference and noise ratio (SINR), signal-to-noise ratio (SNR), power level and suitable long-term quality parameters include error rates such as bit error rate (BER) and packet error rate (PER). The method of the invention can be employed in Multiple Input Multiple Output (MIMO), Multiple Input Single Output (MISO), Single Input Single Output (SISO) and Single Input Multiple Output (SIMO) communication systems to make subsequent mode selection faster and more efficient. Furthermore the method can be used in communication systems employing various transmission protocols including OFDMA, FDMA, CDMA, TDMA.

Abstract translation: 一种用于选择用于在发送单元和接收单元之间的无线通信信道中进行数据传输的模式的方法和通信系统。 最初以初始模式发送数据，并且随后的模式的选择是基于对短期和长期质量参数的一阶和二阶统计参数的选择。 合适的短期质量参数包括信噪比和噪声比（SINR），信噪比（SNR），功率电平和合适的长期质量参数，包括错误率，如误码率（BER）和 数据包错误率（PER）。 本发明的方法可以用于多输入多输出（MIMO），多输入单输出（MISO），单输入单输出（SISO）和单输入多输出（SIMO）通信系统中，以使后续模式选择更快，更多 高效。 此外，该方法可以用于采用包括OFDMA，FDMA，CDMA，TDMA的各种传输协议的通信系统。

公开(公告)号：US08418033B2

公开(公告)日：2013-04-09

申请号：US13076999

申请日：2011-03-31

Applicant: David J. Gesbert ,  Severine E. Catreux ,  Robert W. Heath, Jr. ,  Peroor K. Sebastian ,  Arogyaswami J. Paulraj

Inventor： David J. Gesbert ,  Severine E. Catreux ,  Robert W. Heath, Jr. ,  Peroor K. Sebastian ,  Arogyaswami J. Paulraj

IPC: H03M13/00

CPC classification number: H04L1/06 ,  H04L1/0001 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0021 ,  H04L1/0026 ,  H04L1/0033 ,  H04L1/20

Abstract: A method and communication system for selecting a mode for encoding data for transmission in a wireless communication channel between a transmit unit and a receive unit. The data is initially transmitted in an initial mode and the selection of the subsequent mode is based on a selection of first-order and second-order statistical parameters of short-term and long-term quality parameters. Suitable short-term quality parameters include signal-to-interference and noise ratio (SINR), signal-to-noise ratio (SNR), power level and suitable long-term quality parameters include error rates such as bit error rate (BER) and packet error rate (PER). The method of the invention can be employed in Multiple Input Multiple Output (MIMO), Multiple Input Single Output (MISO), Single Input Single Output (SISO) and Single Input Multiple Output (SIMO) communication systems to make subsequent mode selection faster and more efficient. Furthermore the method can be used in communication systems employing various transmission protocols including OFDMA, FDMA, CDMA, TDMA.

Abstract translation: 一种用于选择用于在发送单元和接收单元之间的无线通信信道中进行数据传输的模式的方法和通信系统。 最初以初始模式传输数据，并且随后的模式的选择是基于对短期和长期质量参数的一阶和二阶统计参数的选择。 合适的短期质量参数包括信噪比和噪声比（SINR），信噪比（SNR），功率电平和合适的长期质量参数，包括错误率，如误码率（BER）和 数据包错误率（PER）。 本发明的方法可以用于多输入多输出（MIMO），多输入单输出（MISO），单输入单输出（SISO）和单输入多输出（SIMO）通信系统中，以使后续模式选择更快，更多 高效。 此外，该方法可以用于采用包括OFDMA，FDMA，CDMA，TDMA的各种传输协议的通信系统。

公开(公告)号：US06760882B1

公开(公告)日：2004-07-06

申请号：US09665149

申请日：2000-09-19

Applicant: David J. Gesbert ,  Severine E. Catreux ,  Robert W. Heath, Jr. ,  Peroor K. Sebastian ,  Arogyaswami J. Paulraj

Inventor： David J. Gesbert ,  Severine E. Catreux ,  Robert W. Heath, Jr. ,  Peroor K. Sebastian ,  Arogyaswami J. Paulraj

IPC: H03M1300

CPC classification number: H04L1/06 ,  H04L1/0001 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0021 ,  H04L1/0026 ,  H04L1/0033 ,  H04L1/20

Abstract: A method and communication system for selecting a mode for encoding data for transmission in a wireless communication channel between a transmit unit and a receive unit. The data is initially transmitted in an initial mode and the selection of the subsequent mode is based on a selection of first-order and second-order statistical parameters of short-term and long-term quality parameters. Suitable short-term quality parameters include signal-to-interference and noise ratio (SINR), signal-to-noise ratio (SNR), power level and suitable long-term quality parameters include error rates such as bit error rate (BER) and packet error rate (PER). The method of the invention can be employed in Multiple Input Multiple Output (MIMO), Multiple Input Single Output (MISO), Single Input Single Output (SISO) and Single Input Multiple Output (SIMO) communication systems to make subsequent mode selection faster and more efficient. Furthermore the method can be used in communication systems employing various transmission protocols including OFDMA, FDMA, CDMA, TDMA.

Abstract translation: 一种用于选择用于在发送单元和接收单元之间的无线通信信道中进行数据传输的模式的方法和通信系统。 最初以初始模式发送数据，并且随后的模式的选择是基于对短期和长期质量参数的一阶和二阶统计参数的选择。 合适的短期质量参数包括信噪比和噪声比（SINR），信噪比（SNR），功率电平和合适的长期质量参数，包括错误率，如误码率（BER）和 数据包错误率（PER）。 本发明的方法可以用于多输入多输出（MIMO），多输入单输出（MISO），单输入单输出（SISO）和单输入多输出（SIMO）通信系统中，以使后续模式选择更快，更多 高效。 此外，该方法可以用于采用包括OFDMA，FDMA，CDMA，TDMA的各种传输协议的通信系统。

公开(公告)号：US06377819B1

公开(公告)日：2002-04-23

申请号：US09544621

申请日：2000-04-06

Applicant: David J. Gesbert ,  Peroor K. Sebastian ,  Arogyaswami J. Paulraj

Inventor： David J. Gesbert ,  Peroor K. Sebastian ,  Arogyaswami J. Paulraj

IPC: H04Q720

CPC classification number: H04B7/04

Abstract: A wireless communication system comprises a base transceiver station and R remote transceivers T1 . . . TR, each of the remote transceivers having multiple antennas. The base transceiver station has N base station antennas, each of the remote transceivers has M remote antennas, and N≧R. The base transceiver station simultaneously transmits information signals s1 . . . sR to remote transceivers T1 . . . TR, respectively. The base transceiver station comprises processing means for selecting R discrimination vectors V1 . . . VR, each of the discrimination vectors having N components. The base transceiver station computes an N-component transmission signal vector U as follows: U = ∑ i = 1 R ⁢   ⁢ V i ⁢ s i . The transmission signal vector U is transmitted from the base transceiver station, preferably one component of U per base station antenna. The ith remote transceiver Ti receives an M-component signal vector Zi through its M remote antennas, one component of Zi per antenna. The ith remote transceiver computes a reconstructed signal yi from the received signal vector Zi. The discrimination vectors V1 . . . VR are preferably selected to optimize an efficiency of transmission, and the computation of yi preferably optimizes an efficiency of reception. Some embodiments of the present system and method employ time filtering, and some embodiments use frequency filtering.

Abstract translation: 无线通信系统包括基站收发台和R远程收发器T1。 。 。 TR，每个远程收发器具有多个天线。 基站收发台具有N个基站天线，每个远端收发器具有M个远程天线，N> = R。 基站收发台同时发送信息信号s1。 。 。 sR到远程收发器T1。 。 。 TR。 基站收发台包括用于选择R个鉴别向量V1的处理装置。 。 。 VR，每个鉴别向量具有N个分量。 基站收发台如下计算N分量传输信号向量U：发送信号向量U从基站发送，优选为每个基站天线的一个分量。 第i个远程收发器Ti通过其M个远程天线接收M分量信号矢量Zi，每个天线Zi的一个分量。 第i个远程收发器从接收信号矢量Zi计算重构信号yi。 鉴别向量V1。 。 。 优选选择VR以优化传输效率，并且yi的计算优选地优化接收效率。 本系统和方法的一些实施例采用时间滤波，并且一些实施例使用频率滤波。

公开(公告)号：US06351499B1

公开(公告)日：2002-02-26

申请号：US09464372

申请日：1999-12-15

Applicant: Arogyaswami J. Paulraj ,  Peroor K. Sebastian ,  David J. Gesbert ,  Jose Tellado

Inventor： Arogyaswami J. Paulraj ,  Peroor K. Sebastian ,  David J. Gesbert ,  Jose Tellado

IPC: H04B702

CPC classification number: H04B7/0891 ,  H01Q1/246 ,  H01Q3/2605 ,  H04B7/0669 ,  H04B7/0673 ,  H04B7/0697 ,  H04B7/0857 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/06 ,  H04L1/0606 ,  H04L1/0618

Abstract: A method of maximizing a communication parameter, such as data capacity, signal quality or throughput of a channel between a transmit unit with M transmit antennas and a receive unit with N receive antennas and a communication system such as a wireless network (including networks with multiple access techniques such as TDMA, FDMA, CDMA, OFDMA) employing the method. The data is first processed to produce parallel spatial-multiplexed streams SMi, where i=1 . . . k, which are converted or mapped to transmit signals TSp, where p=1 . . . M, assigned for transmission from the M transmit antennas. Corresponding receive signals RSj, where j=1 . . . N, are received by the N receive antennas of the receiver and used to assess a quality parameter, such as a statistical signal parameter including SINR, SNR, power level, level crossing rate, level crossing duration of the signal of a predetermined threshold and reception threshold, or a parameter of the data, such as BER or packet error rate. The quality parameter is used to adaptively adjust k as well as other parameters such as coding and mapping to transmit antennas such that the communication parameter of the channel is maximized.

Abstract translation: 使具有M个发送天线的发送单元和具有N个接收天线的接收单元之间的信道的数据容量，信号质量或吞吐量等通信参数最大化的方法以及诸如无线网络的通信系统（包括具有多个 接入技术，如TDMA，FDMA，CDMA，OFDMA）。 首先处理数据以产生并行空间复用流SMi，其中i = 1。 。 。 k，其被转换或映射到发射信号TSp，其中p = 1。 。 。 M，被分配用于从M个发射天线发射。 相应的接收信号RSj，其中j = 1。 。 。 N由接收机的N个接收天线接收并且用于评估质量参数，诸如包括SINR，SNR，功率电平，电平穿越率，预定阈值的信号的电平穿越持续时间和接收的统计信号参数 阈值或数据的参数，例如BER或分组错误率。 质量参数用于自适应地调整k以及其他参数，例如编码和映射到发射天线，使得信道的通信参数最大化。

公开(公告)号：US07921349B2

公开(公告)日：2011-04-05

申请号：US12823267

申请日：2010-06-25

Applicant: David J. Gesbert ,  Severine E. Catreux ,  Robert W. Heath, Jr. ,  Peroor K. Sebastian ,  Arogyaswami J. Paulraj

Inventor： David J. Gesbert ,  Severine E. Catreux ,  Robert W. Heath, Jr. ,  Peroor K. Sebastian ,  Arogyaswami J. Paulraj

IPC: H03M13/00

CPC classification number: H04L1/06 ,  H04L1/0001 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0021 ,  H04L1/0026 ,  H04L1/0033 ,  H04L1/20

Abstract: A method and communication system for selecting a mode for encoding data for transmission in a wireless communication channel between a transmit unit and a receive unit. The data is initially transmitted in an initial mode and the selection of the subsequent mode is based on a selection of first-order and second-order statistical parameters of short-term and long-term quality parameters. Suitable short-term quality parameters include signal-to-interference and noise ratio (SINR), signal-to-noise ratio (SNR), power level and suitable long-term quality parameters include error rates such as bit error rate (BER) and packet error rate (PER). The method of the invention can be employed in Multiple Input. Multiple Output (MIMO), Multiple Input Single Output (MISO), Single Input Single Output (SISO) and Single Input Multiple Output (SIMO) communication systems to make subsequent mode selection faster and more efficient. Furthermore the method can be used in communication systems employing various transmission protocols including OFDMA, FDMA, CDMA, TDMA.

Abstract translation: 一种用于选择用于在发送单元和接收单元之间的无线通信信道中进行数据传输的模式的方法和通信系统。 最初以初始模式发送数据，并且随后的模式的选择是基于对短期和长期质量参数的一阶和二阶统计参数的选择。 合适的短期质量参数包括信噪比和噪声比（SINR），信噪比（SNR），功率电平和合适的长期质量参数，包括错误率，如误码率（BER）和 数据包错误率（PER）。 本发明的方法可以用于多输入。 多输出（MIMO），多输入单输出（MISO），单输入单输出（SISO）和单输入多输出（SIMO）通信系统，使后续模式选择更快更有效。 此外，该方法可以用于采用包括OFDMA，FDMA，CDMA，TDMA的各种传输协议的通信系统。

公开(公告)号：US06963619B1

公开(公告)日：2005-11-08

申请号：US09621119

申请日：2000-07-21

Applicant: David J. Gesbert ,  Peroor K. Sebastian ,  Vinko Erceg ,  Victor Shtrom ,  Sanjay Kasturia ,  Arogyaswami J. Paulraj

Inventor： David J. Gesbert ,  Peroor K. Sebastian ,  Vinko Erceg ,  Victor Shtrom ,  Sanjay Kasturia ,  Arogyaswami J. Paulraj

IPC: H04B7/02 ,  H04B7/10 ,  H04L1/02

CPC classification number: H04B7/10

Abstract: The present invention includes a wireless communication system. The wireless communication system includes a plurality of transceiver antennae. Each transceiver is spatially separate from at least one other transceiver antenna. Each transceiver antenna includes a transceiver antenna polarization. At least one transceiver antenna has a polarization that is different than at least one other transceiver antenna. Each transceiver antenna transmits a corresponding data stream. The wireless communication system further includes a plurality of receiver antennae. The receiver antennae receive at least one data stream. The transceiver antenna polarization of each transceiver antenna is pre-set to optimize separability of the received data streams. A transmission channel between the transceiver antennae and the receiver antennae can be estimated with a channel matrix. The pre-set transceiver antenna polarization of each transceiver antenna can be determined by minimizing a singular value spread of the channel matrix. A pre-set receiver antenna polarization of each receiver antenna can also be determined by minimizing a singular value spread of the channel matrix.

Abstract translation: 本发明包括无线通信系统。 无线通信系统包括多个收发器天线。 每个收发器在空间上与至少一个其他收发器天线分离。 每个收发天线包括收发天线极化。 至少一个收发天线具有与至少一个其它收发器天线不同的极化。 每个收发天线发送相应的数据流。 无线通信系统还包括多个接收机天线。 接收器天线接收至少一个数据流。 每个收发天线的收发天线极化被预先设定，以优化接收数据流的可分离性。 可以用信道矩阵来估计收发天线和接收机天线之间的传输信道。 可以通过最小化信道矩阵的奇异值扩展来确定每个收发天线的预设收发天线极化。 也可以通过最小化信道矩阵的奇异值扩展来确定每个接收机天线的预设接收机天线极化。