公开(公告)号：US07583609B2

公开(公告)日：2009-09-01

申请号：US10990676

申请日：2004-11-16

Applicant: Severine Catreux ,  David Gesbert ,  Manish Airy

Inventor： Severine Catreux ,  David Gesbert ,  Manish Airy

IPC: G06F11/00 ,  H04J3/22

CPC classification number: H04L1/0003 ,  H04L1/0001 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0021 ,  H04L1/0026 ,  H04L1/0033 ,  H04L1/06 ,  H04L1/20 ,  H04L27/2601 ,  H04W24/00 ,  H04W28/06

Abstract: The present invention includes a method of optimizing a transmission mode of wirelessly transmitted data. The method includes selecting a first transmission mode based on a predetermined channel database and a first channel characterization. The first channel characterization can be based upon signals transmitted in an initial mode. An error factor is generated based on a difference between an estimated performance characteristic, and an expected performance characteristic. A subsequent transmission mode is selected based upon the predetermined channel database, the error factor and a subsequent channel characterization. The predetermined channel database can include a predetermined look-up-table that provides transmission mode selections based upon the channel characterizations. The look-up-table generally includes a plurality of quality parameter thresholds that determine the selection of a transmission mode. Another method includes receiving transmission signals that include data encoded in an initial transmission mode. A first quality parameter of the received transmission signals is measured. A subsequent transmission mode is selected based upon the quality parameter. Transmission signals are received having data encoded in the subsequent transmission mode. A second quality parameter is measured. A parameter is adjusted within selection criteria of another subsequent transmission mode based upon the second quality parameter.

公开(公告)号：US06802035B2

公开(公告)日：2004-10-05

申请号：US10072359

申请日：2002-04-01

Applicant: Severine Catreux ,  David Gesbert ,  Manish Airy

Inventor： Severine Catreux ,  David Gesbert ,  Manish Airy

IPC: G06F1100

CPC classification number: H04L1/0003 ,  H04L1/0001 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0021 ,  H04L1/0026 ,  H04L1/0033 ,  H04L1/06 ,  H04L1/20 ,  H04L27/2601 ,  H04W24/00 ,  H04W28/06

Abstract: The present invention includes a method of optimizing a transmission mode of wirelessly transmitted data. The method includes selecting a first transmission mode based on a predetermined channel database and a first channel characterization. The first channel characterization can be based upon signals transmitted in an initial mode. An error factor is generated based on a difference between an estimated performance characteristic, and an expected performance characteristic. A subsequent transmission mode is selected based upon the predetermined channel database, the error factor and a subsequent channel characterization. The predetermined channel database can include a predetermined look-up-table that provides transmission mode selections based upon the channel characterizations. The look-up-table generally includes a plurality of quality parameter thresholds that determine the selection of a transmission mode. Another method includes receiving transmission signals that include data encoded in an initial transmission mode. A first quality parameter of the received transmission signals is measured. A subsequent transmission mode is selected based upon the quality parameter. Transmission signals are received having data encoded in the subsequent transmission mode. A second quality parameter is measured. A parameter is adjusted within selection criteria of another subsequent transmission mode based upon the second quality parameter.

Abstract translation: 本发明包括优化无线发送数据的发送模式的方法。 该方法包括基于预定信道数据库和第一信道表征来选择第一传输模式。 第一通道特性可以基于在初始模式下传输的信号。 基于估计性能特性和预期性能特性之间的差异产生误差因子。 基于预定的信道数据库，误差因子和随后的信道表征来选择随后的传输模式。 预定信道数据库可以包括基于信道特征提供传输模式选择的预定查找表。 查找表通常包括确定传输模式的选择的多个质量参数阈值。 另一种方法包括接收包括以初始传输模式编码的数据的传输信号。 测量所接收的传输信号的第一质量参数。 基于质量参数选择随后的传输模式。 接收具有在后续传输模式中编码的数据的传输信号。 测量第二个质量参数。 基于第二质量参数，在另一后续传输模式的选择标准内调整参数。

公开(公告)号：US20110110414A1

公开(公告)日：2011-05-12

申请号：US13002100

申请日：2009-06-26

Applicant: Agisilaos Papadogiannis ,  Eric Hardouin ,  David Gesbert

Inventor： Agisilaos Papadogiannis ,  Eric Hardouin ,  David Gesbert

IPC: H04L27/28 ,  H04B17/00

CPC classification number: H04B7/0417 ,  H04B7/024 ,  H04W72/082 ,  H04W72/1278 ,  H04W84/18

Abstract: In a multicellular cooperative radio communications method, the terminals estimate and communicate to all the access points of a cooperating cluster of access points information on the transmission channels between them and each access point of the cluster. The access points include homologous processor for scheduling the servicing of the terminals and operating in accordance with a particular criterion common to all the access points. Finally, the servicing of the terminals is effected jointly by said access points, in an order determined by the processor, using transmission parameters on the basis of the information on the transmission channels transmitted by the terminals.

Abstract translation: 在多小区合作无线电通信方法中，终端估计并通信到协作的接入点簇的所有接入点，关于它们与群集的每个接入点之间的传输信道。 接入点包括用于调度终端维修的同步处理器，并根据所有接入点共同的特定标准进行操作。 最后，根据由终端发送的传输信道的信息，使用传输参数，以由处理器确定的顺序由所述接入点共同实现终端的服务。

公开(公告)号：US20050099975A1

公开(公告)日：2005-05-12

申请号：US10990676

申请日：2004-11-16

Applicant: Severine Catreux ,  David Gesbert ,  Manish Airy

Inventor： Severine Catreux ,  David Gesbert ,  Manish Airy

IPC: H04J99/00 ,  H04B7/04 ,  H04B7/06 ,  H04B7/26 ,  H04L1/00 ,  H04L1/06 ,  H04L1/20 ,  H04L12/56 ,  H04L27/26 ,  H04W24/00 ,  H04W28/04 ,  H04W28/06

CPC classification number: H04L1/0003 ,  H04L1/0001 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0021 ,  H04L1/0026 ,  H04L1/0033 ,  H04L1/06 ,  H04L1/20 ,  H04L27/2601 ,  H04W24/00 ,  H04W28/06

Abstract: The present invention includes a method of optimizing a transmission mode of wirelessly transmitted data. The method includes selecting a first transmission mode based on a predetermined channel database and a first channel characterization. The first channel characterization can be based upon signals transmitted in an initial mode. An error factor is generated based on a difference between an estimated performance characteristic, and an expected performance characteristic. A subsequent transmission mode is selected based upon the predetermined channel database, the error factor and a subsequent channel characterization. The predetermined channel database can include a predetermined look-up-table that provides transmission mode selections based upon the channel characterizations. The look-up-table generally includes a plurality of quality parameter thresholds that determine the selection of a transmission mode. Another method includes receiving transmission signals that include data encoded in an initial transmission mode. A first quality parameter of the received transmission signals is measured. A subsequent transmission mode is selected based upon the quality parameter. Transmission signals are received having data encoded in the subsequent transmission mode. A second quality parameter is measured. A parameter is adjusted within selection criteria of another subsequent transmission mode based upon the second quality parameter.

Abstract translation: 本发明包括优化无线发送数据的发送模式的方法。 该方法包括基于预定信道数据库和第一信道表征来选择第一传输模式。 第一通道特性可以基于在初始模式下传输的信号。 基于估计性能特性和预期性能特性之间的差异产生误差因子。 基于预定的信道数据库，误差因子和随后的信道表征来选择随后的传输模式。 预定信道数据库可以包括基于信道特征提供传输模式选择的预定查找表。 查找表通常包括确定传输模式的选择的多个质量参数阈值。 另一种方法包括接收包括以初始传输模式编码的数据的传输信号。 测量所接收的传输信号的第一质量参数。 基于质量参数选择随后的传输模式。 接收具有在后续传输模式中编码的数据的传输信号。 测量第二个质量参数。 基于第二质量参数，在另一后续传输模式的选择标准内调整参数。

公开(公告)号：US20050031044A1

公开(公告)日：2005-02-10

申请号：US10884102

申请日：2004-07-01

Applicant: David Gesbert ,  Severine Catreux ,  Robert Heath ,  Peroor Sebastian ,  Arogyaswami Paulraj

Inventor： David Gesbert ,  Severine Catreux ,  Robert Heath ,  Peroor Sebastian ,  Arogyaswami Paulraj

IPC: H04L1/00 ,  H04L1/06 ,  H04L1/20 ,  H04W28/04 ,  H04L27/00

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：US09059752B2

公开(公告)日：2015-06-16

申请号：US13002100

申请日：2009-06-26

Applicant: Agisilaos Papadogiannis ,  Eric Hardouin ,  David Gesbert

Inventor： Agisilaos Papadogiannis ,  Eric Hardouin ,  David Gesbert

IPC: H04W4/00 ,  H04B7/04 ,  H04W72/12 ,  H04W84/18 ,  H04W72/08

CPC classification number: H04B7/0417 ,  H04B7/024 ,  H04W72/082 ,  H04W72/1278 ,  H04W84/18

Abstract: In a multicellular cooperative radio communications method, the terminals estimate and communicate to all the access points of a cooperating cluster of access points information on the transmission channels between them and each access point of the cluster. The access points include homologous processor for scheduling the servicing of the terminals and operating in accordance with a particular criterion common to all the access points. Finally, the servicing of the terminals is effected jointly by said access points, in an order determined by the processor, using transmission parameters on the basis of the information on the transmission channels transmitted by the terminals.

Abstract translation: 在多小区合作无线电通信方法中，终端估计并通信到协作的接入点簇的所有接入点，关于它们与群集的每个接入点之间的传输信道。 接入点包括用于调度终端维修的同步处理器，并根据所有接入点共同的特定标准进行操作。 最后，根据由终端发送的传输信道的信息，使用传输参数，以由处理器确定的顺序由所述接入点共同实现终端的服务。

公开(公告)号：US08824576B2

公开(公告)日：2014-09-02

申请号：US13060897

申请日：2009-08-06

Applicant: Choongil Yeh ,  Dong Seung Kwon ,  Ji Hyung Kim ,  David Gesbert

Inventor： Choongil Yeh ,  Dong Seung Kwon ,  Ji Hyung Kim ,  David Gesbert

IPC: H04K1/10

CPC classification number: H04B7/0617 ,  H04B7/0626 ,  H04B7/0641 ,  H04B7/065

Abstract: The present invention provides data transmission capacity that is optimized in a communication environment by iteratively modifying a beamforming vector by linearly coupling selfish beamforming with unselfish beamforming using feedback information. The transmitter for modifying the beamforming vector iteratively includes: a feedback receiving module that receives feedback information from a receiver: and a vector determination module that determines an initial beamforming vector by coupling a first vector for the selfish beamforming with a second vector for the unselfish beamforming at the time of initial beamforming, and corrects a coupling ratio of the first vector and the second vector of the beamforming vector with reference to the received feedback information whenever the beamforming is modified.

Abstract translation: 本发明提供了在通信环境中优化的数据传输能力，通过使用反馈信息通过使用无私波束成形线性耦合自私波束成形来迭代地修改波束形成向量。 用于修改波束形成向量的发射机迭代地包括：反馈接收模块，其从接收机接收反馈信息;以及矢量确定模块，其通过将用于自私波束形成的第一矢量与用于无私波束形成的第二矢量相耦合来确定初始波束形成向量 在初始波束形成时，并且每当修改波束形成时，参照所接收的反馈信息来校正波束形成矢量的第一矢量和第二矢量的耦合比。

公开(公告)号：US20110158347A1

公开(公告)日：2011-06-30

申请号：US13060897

申请日：2009-08-06

Applicant: Choongil Yeh ,  Dong Seung Kwon ,  Ji Hyung Kim ,  David Gesbert

Inventor： Choongil Yeh ,  Dong Seung Kwon ,  Ji Hyung Kim ,  David Gesbert

IPC: H04L25/03

CPC classification number: H04B7/0617 ,  H04B7/0626 ,  H04B7/0641 ,  H04B7/065

Abstract: The present invention provides data transmission capacity that is optimized in a communication environment by iteratively modifying a beamforming vector by linearly coupling selfish beamforming with unselfish beamforming using feedback information. The transmitter for modifying the beamforming vector iteratively includes: a feedback receiving module that receives feedback information from a receiver: and a vector determination module that determines an initial beamforming vector by coupling a first vector for the selfish beamforming with a second vector for the unselfish beamforming at the time of initial beamforming, and corrects a coupling ratio of the first vector and the second vector of the beamforming vector with reference to the received feedback information whenever the beamforming is modified.

Abstract translation: 本发明提供了在通信环境中优化的数据传输能力，通过使用反馈信息通过使用无私波束成形线性耦合自私波束成形来迭代地修改波束形成向量。 用于修改波束形成向量的发射机迭代地包括：反馈接收模块，其从接收机接收反馈信息;以及矢量确定模块，其通过将用于自私波束形成的第一矢量与用于无私波束形成的第二矢量相耦合来确定初始波束形成向量 在初始波束形成时，并且每当修改波束形成时，参照所接收的反馈信息来校正波束形成矢量的第一矢量和第二矢量的耦合比。

公开(公告)号：US07920483B2

公开(公告)日：2011-04-05

申请号：US12491634

申请日：2009-06-25

Applicant: Severine Catreux ,  David Gesbert ,  Manish Airy

Inventor： Severine Catreux ,  David Gesbert ,  Manish Airy

IPC: G06F11/00 ,  H04J3/22

CPC classification number: H04L1/0003 ,  H04L1/0001 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0021 ,  H04L1/0026 ,  H04L1/0033 ,  H04L1/06 ,  H04L1/20 ,  H04L27/2601 ,  H04W24/00 ,  H04W28/06

Abstract: The present invention includes a method of optimizing a transmission mode of wirelessly transmitted data. The method includes selecting a first transmission mode based on a predetermined channel database and a first channel characterization. The first channel characterization can be based upon signals transmitted in an initial mode. An error factor is generated based on a difference between an estimated performance characteristic, and an expected performance characteristic. A subsequent transmission mode is selected based upon the predetermined channel database, the error factor and a subsequent channel characterization. The predetermined channel database can include a predetermined look-up-table that provides transmission mode selections based upon the channel characterizations. The look-up-table generally includes a plurality of quality parameter thresholds that determine the selection of a transmission mode. Another method includes receiving transmission signals that include data encoded in an initial transmission mode. A first quality parameter of the received transmission signals is measured. A subsequent transmission mode is selected based upon the quality parameter. Transmission signals are received having data encoded in the subsequent transmission mode. A second quality parameter is measured. A parameter is adjusted within selection criteria of another subsequent transmission mode based upon the second quality parameter.

Abstract translation: 本发明包括优化无线发送数据的发送模式的方法。 该方法包括基于预定信道数据库和第一信道表征来选择第一传输模式。 第一通道特性可以基于在初始模式下传输的信号。 基于估计性能特性和预期性能特性之间的差异产生误差因子。 基于预定的信道数据库，误差因子和随后的信道表征来选择随后的传输模式。 预定信道数据库可以包括基于信道特征提供传输模式选择的预定查找表。 查找表通常包括确定传输模式的选择的多个质量参数阈值。 另一种方法包括接收包括以初始传输模式编码的数据的传输信号。 测量所接收的传输信号的第一质量参数。 基于质量参数选择随后的传输模式。 接收具有在后续传输模式中编码的数据的传输信号。 测量第二个质量参数。 基于第二质量参数，在另一后续传输模式的选择标准内调整参数。

公开(公告)号：US20090262850A1

公开(公告)日：2009-10-22

申请号：US12491634

申请日：2009-06-25

Applicant: Severine Catreux ,  David Gesbert ,  Manish Airy

Inventor： Severine Catreux ,  David Gesbert ,  Manish Airy

IPC: H04L27/28 ,  H04B1/04

CPC classification number: H04L1/0003 ,  H04L1/0001 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0021 ,  H04L1/0026 ,  H04L1/0033 ,  H04L1/06 ,  H04L1/20 ,  H04L27/2601 ,  H04W24/00 ,  H04W28/06

Abstract: The present invention includes a method of optimizing a transmission mode of wirelessly transmitted data. The method includes selecting a first transmission mode based on a predetermined channel database and a first channel characterization. The first channel characterization can be based upon signals transmitted in an initial mode. An error factor is generated based on a difference between an estimated performance characteristic, and an expected performance characteristic. A subsequent transmission mode is selected based upon the predetermined channel database, the error factor and a subsequent channel characterization. The predetermined channel database can include a predetermined look-up-table that provides transmission mode selections based upon the channel characterizations. The look-up-table generally includes a plurality of quality parameter thresholds that determine the selection of a transmission mode. Another method includes receiving transmission signals that include data encoded in an initial transmission mode. A first quality parameter of the received transmission signals is measured. A subsequent transmission mode is selected based upon the quality parameter. Transmission signals are received having data encoded in the subsequent transmission mode. A second quality parameter is measured. A parameter is adjusted within selection criteria of another subsequent transmission mode based upon the second quality parameter.

Abstract translation: 本发明包括优化无线发送数据的发送模式的方法。 该方法包括基于预定信道数据库和第一信道表征来选择第一传输模式。 第一通道特性可以基于在初始模式下传输的信号。 基于估计性能特性和预期性能特性之间的差异产生误差因子。 基于预定的信道数据库，误差因子和随后的信道表征来选择随后的传输模式。 预定信道数据库可以包括基于信道特征提供传输模式选择的预定查找表。 查找表通常包括确定传输模式的选择的多个质量参数阈值。 另一种方法包括接收包括以初始传输模式编码的数据的传输信号。 测量所接收的传输信号的第一质量参数。 基于质量参数选择随后的传输模式。 接收具有在后续传输模式中编码的数据的传输信号。 测量第二个质量参数。 基于第二质量参数，在另一后续传输模式的选择标准内调整参数。