公开(公告)号：US09344178B2

公开(公告)日：2016-05-17

申请号：US13601979

申请日：2012-08-31

申请人： Bertrand Hochwald ,  Harold Artes

发明人： Bertrand Hochwald ,  Harold Artes

IPC分类号： H04B7/04 ,  H04W72/08 ,  H04B7/06

CPC分类号： H04B7/0689 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0671 ,  H04B7/0697 ,  H04W72/08

摘要： A method of aiding uplink transmission is disclosed. One method includes a base station downlink transmitting signals to at least a first terminal, the transmitted signals directed and conveying data to at least the first terminal. The method further includes a second terminal eavesdropping the transmitted signals, and measuring a signal quality. The second terminal estimates uplink channel information based on the measured signal quality, for aiding uplink transmission. Based at least in part on the estimated transmission channel, the second terminal transmits uplink signals to the base station.

摘要翻译： 公开了一种辅助上行链路传输的方法。 一种方法包括基站下行链路向至少第一终端发送信号，发送的信号被引导并将数据传送到至少第一终端。 该方法还包括第二终端窃听所发送的信号，并测量信号质量。 第二终端基于测量的信号质量估计上行链路信道信息，用于辅助上行链路传输。 至少部分地基于所估计的传输信道，第二终端向基站发送上行链路信号。

公开(公告)号：US20090092199A1

公开(公告)日：2009-04-09

申请号：US11998240

申请日：2007-11-29

申请人： Sriram Mudulodu ,  Harold Artes ,  Bertrand Hochwald ,  Guojie Dong ,  Robert G. Lorenz ,  J. Varaprasad

发明人： Sriram Mudulodu ,  Harold Artes ,  Bertrand Hochwald ,  Guojie Dong ,  Robert G. Lorenz ,  J. Varaprasad

IPC分类号： H04B7/02

CPC分类号： H04B7/01 ,  H04L27/2657 ,  H04L27/2675

摘要： A method and system of estimating frequency offset at a subscriber station is disclosed. One method includes the subscriber station receiving a composite signal, wherein the composite signal includes multi-carrier signals transmitted from a plurality of base stations. The subscriber station selects a first pair of multi-carrier symbols of the composite signal, wherein each multi-carrier symbol of the first pair of multi-carrier symbols includes a pilot sub-carrier having a common sub-carrier index. The subscriber station selects a second pair of multi-carrier symbols of the composite signal, the second pair having different symbol indices than the first pair, but having a same symbol index separation, wherein each of the multi-carrier symbols of the second pair of multi-carrier symbols includes a pilot sub-carrier having a second common sub-carrier index. The subscriber station estimates a phase based on a first sum of complex conjugate products between received symbols on the pilot sub-carriers of the first pair of multi-carrier symbols, and/or based on a second sum of complex conjugate products between received symbols on the pilot sub-carriers of the second pair of multi-carrier symbols. The subscriber station provides the phase to a filter of a frequency tracking loop of the subscriber station.

摘要翻译： 公开了一种估计用户台频偏的方法和系统。 一种方法包括用户站接收复合信号，其中复合信号包括从多个基站发送的多载波信号。 用户站选择复合信号的第一对多载波符号，其中第一对多载波符号对的每个多载波符号包括具有公共子载波索引的导频子载波。 用户站选择复合信号的第二对多载波符号，第二对具有与第一对不同的符号索引，但是具有相同的符号索引分离，其中第二对的多载波符号 多载波符号包括具有第二公共子载波索引的导频子载波。 用户站基于第一对多载波符号的导频子载波上的接收符号之间的复数共轭乘积的第一和估计相位，和/或基于接收符号之间的第二和复共轭乘积之和 第二对多载波符号的导频子载波。 用户站向用户站的频率跟踪环路的滤波器提供相位。

公开(公告)号：US20120327805A1

公开(公告)日：2012-12-27

申请号：US13601979

申请日：2012-08-31

申请人： Bertrand HOCHWALD ,  Harold Artes

发明人： Bertrand HOCHWALD ,  Harold Artes

IPC分类号： H04W24/00

CPC分类号： H04B7/0689 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0671 ,  H04B7/0697 ,  H04W72/08

摘要： A method of aiding uplink transmission is disclosed. One method includes a base station downlink transmitting signals to at least a first terminal, the transmitted signals directed and conveying data to at least the first terminal. The method further includes a second terminal eavesdropping the transmitted signals, and measuring a signal quality. The second terminal estimates uplink channel information based on the measured signal quality, for aiding uplink transmission. Based at least in part on the estimated transmission channel, the second terminal transmits uplink signals to the base station.

摘要翻译： 公开了一种辅助上行链路传输的方法。 一种方法包括基站下行链路向至少第一终端发送信号，发送的信号被引导并将数据传送到至少第一终端。 该方法还包括第二终端窃听所发送的信号，并测量信号质量。 第二终端基于测量的信号质量估计上行链路信道信息，用于辅助上行链路传输。 至少部分地基于所估计的传输信道，第二终端向基站发送上行链路信号。

公开(公告)号：US20090190520A1

公开(公告)日：2009-07-30

申请号：US12072375

申请日：2008-02-26

申请人： Bertrand Hochwald ,  Harold Artes

发明人： Bertrand Hochwald ,  Harold Artes

IPC分类号： H04B7/14

CPC分类号： H04B7/0689 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0671 ,  H04B7/0697 ,  H04W72/08

摘要： A method and apparatus of providing a base station with updated transmission channel information is disclosed. The method includes the base station transmitting beamformed signals to a first terminal. A second terminal receives the transmitted beamformed signals, and measures a signal quality. The second terminal conveys back to the base station the measured signal quality, and a transmission identifier of the beamformed data signal.

摘要翻译： 公开了一种向基站提供更新的传输信道信息的方法和装置。 该方法包括基站向第一终端发送波束形成的信号。 第二终端接收所发送的波束形成信号，并测量信号质量。 第二终端向基站传送测量的信号质量，以及波束形成数据信号的传输标识符。

公开(公告)号：US20090116575A1

公开(公告)日：2009-05-07

申请号：US12287619

申请日：2008-10-10

申请人： Bertrand Hochwald ,  Robert G. Lorenz ,  Harold Artes

发明人： Bertrand Hochwald ,  Robert G. Lorenz ,  Harold Artes

IPC分类号： H04B7/02 ,  H04B17/00

CPC分类号： H04L25/0206 ,  H04B7/0671 ,  H04L5/0044 ,  H04L25/0212 ,  H04L25/0228 ,  H04L27/2647

摘要： A method and apparatus of a receiver estimating a plurality of channels is disclosed. The method includes the receiver receiving a composite signal. The composite signal includes a signal from each of a plurality of transmission antennas, wherein the signal of each transmission antenna includes a delay relative to other signals of other antennas. The receiver estimates channels between the receiver and the plurality of transmission antennas based on amplitude and a phase of a received composite signal, at a plurality of frequencies.

摘要翻译： 公开了一种估计多个信道的接收机的方法和装置。 该方法包括接收器接收复合信号。 复合信号包括来自多个发射天线中的每一个的信号，其中每个发射天线的信号包括相对于其它天线的其它信号的延迟。 接收机基于接收到的复合信号的幅度和相位，以多个频率估计接收机与多个发射天线之间的信道。

公开(公告)号：US07929595B2

公开(公告)日：2011-04-19

申请号：US11998240

申请日：2007-11-29

申请人： Sriram Mudulodu ,  Harold Artes ,  Bertrand Hochwald ,  Guojie Dong ,  Robert G. Lorenz ,  Javvadi Varaprasad

发明人： Sriram Mudulodu ,  Harold Artes ,  Bertrand Hochwald ,  Guojie Dong ,  Robert G. Lorenz ,  Javvadi Varaprasad

IPC分类号： H04L27/18

CPC分类号： H04B7/01 ,  H04L27/2657 ,  H04L27/2675

摘要： A method and system of estimating frequency offset at a subscriber station is disclosed. One method includes the subscriber station receiving a composite signal, wherein the composite signal includes multi-carrier signals transmitted from a plurality of base stations. The subscriber station selects a first pair of multi-carrier symbols of the composite signal, wherein each multi-carrier symbol of the first pair of multi-carrier symbols includes a pilot sub-carrier having a common sub-carrier index. The subscriber station selects a second pair of multi-carrier symbols of the composite signal, the second pair having different symbol indices than the first pair, but having a same symbol index separation, wherein each of the multi-carrier symbols of the second pair of multi-carrier symbols includes a pilot sub-carrier having a second common sub-carrier index. The subscriber station estimates a phase based on a first sum of complex conjugate products between received symbols on the pilot sub-carriers of the first pair of multi-carrier symbols, and/or based on a second sum of complex conjugate products between received symbols on the pilot sub-carriers of the second pair of multi-carrier symbols. The subscriber station provides the phase to a filter of a frequency tracking loop of the subscriber station.

摘要翻译： 公开了一种估计用户台频偏的方法和系统。 一种方法包括用户站接收复合信号，其中复合信号包括从多个基站发送的多载波信号。 用户站选择复合信号的第一对多载波符号，其中第一对多载波符号对的每个多载波符号包括具有公共子载波索引的导频子载波。 用户站选择复合信号的第二对多载波符号，第二对具有与第一对不同的符号索引，但是具有相同的符号索引分离，其中第二对的多载波符号 多载波符号包括具有第二公共子载波索引的导频子载波。 用户站基于第一对多载波符号的导频子载波上的接收符号之间的复数共轭乘积的第一和估计相位，和/或基于接收符号之间的复共轭乘积的第二和 第二对多载波符号的导频子载波。 用户站向用户站的频率跟踪环路的滤波器提供相位。

公开(公告)号：US20090190488A1

公开(公告)日：2009-07-30

申请号：US12074186

申请日：2008-02-29

申请人： Bertrand Hochwald ,  Harold Artes

发明人： Bertrand Hochwald ,  Harold Artes

IPC分类号： H04L12/26

CPC分类号： H04B7/0689 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0671 ,  H04B7/0697 ,  H04W72/08

摘要： A method and apparatus of aiding uplink beamforming transmission is disclosed. One method includes a base station downlink transmitting beamformed signals to at least a first terminal, the beam formed signals directed and conveying data to at least the first terminal. The method further includes a second terminal eavesdropping the transmitted beamformed signals, and measuring a signal quality. The second terminal estimates uplink channel information based on the measured signal quality, for aiding uplink transmission. Based at least in part on the estimated transmission channel, the second terminal transmits beamformed uplink signals to the base station.

摘要翻译： 公开了一种辅助上行波束成形传输的方法和装置。 一种方法包括基站下行链路向至少第一终端发送波束形成的信号，所述波束形成的信号被引导并将数据传送到至少第一终端。 该方法还包括第二终端窃听所发送的波束形成信号，并测量信号质量。 第二终端基于测量的信号质量估计上行链路信道信息，用于辅助上行链路传输。 至少部分地基于估计的传输信道，第二终端向基站发射波束形成的上行链路信号。

公开(公告)号：US08194774B2

公开(公告)日：2012-06-05

申请号：US12287619

申请日：2008-10-10

申请人： Bertrand Hochwald ,  Robert G. Lorenz ,  Harold Artes

发明人： Bertrand Hochwald ,  Robert G. Lorenz ,  Harold Artes

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04L25/0206 ,  H04B7/0671 ,  H04L5/0044 ,  H04L25/0212 ,  H04L25/0228 ,  H04L27/2647

摘要： A method and apparatus of a receiver estimating a plurality of channels is disclosed. The method includes the receiver receiving a composite signal. The composite signal includes a signal from each of a plurality of transmission antennas, wherein the signal of each transmission antenna includes a delay relative to other signals of other antennas. The receiver estimates channels between the receiver and the plurality of transmission antennas based on amplitude and a phase of a received composite signal, at a plurality of frequencies.

摘要翻译： 公开了一种估计多个信道的接收机的方法和装置。 该方法包括接收器接收复合信号。 复合信号包括来自多个发射天线中的每一个的信号，其中每个发射天线的信号包括相对于其它天线的其它信号的延迟。 接收机基于接收到的复合信号的幅度和相位，以多个频率估计接收机与多个发射天线之间的信道。

公开(公告)号：US08130682B2

公开(公告)日：2012-03-06

申请号：US12378604

申请日：2009-02-18

申请人： Louay Jalloul ,  Harold Artes ,  Anuj Puri

发明人： Louay Jalloul ,  Harold Artes ,  Anuj Puri

IPC分类号： H04J1/00

CPC分类号： H04L5/0037 ,  H04L5/006 ,  H04W4/08 ,  H04W8/186 ,  H04W72/0453

摘要： Methods assigning mobile users in a half-frequency division duplex (HFDD) system to a first UL group and second UL group of an uplink (UL) sub-frame, and to a first DL group and a second DL group of a downlink (DL) sub-frame, wherein the UL sub-frame is assigned a first carrier frequency and the DL sub-frame is assigned a second carrier frequency, are disclosed. One method includes determining a type of data, determining a receive CINR (carrier interference plus noise ratio), and determining a Doppler frequency parameter, for each mobile user of a plurality of mobile users. The plurality of mobile users to are assigned to the first UL group, the second UL group, the first DL group and the second DL group based on time durations of the first UL group, the second UL group, the first DL group and the second DL group, and based on and at least one of the data type, CINR, Doppler frequency spread of the mobile user, and a number of mobile users previously assigned to the first UL group, the second UL group, the first DL group and the second DL group.

摘要翻译： 将半频分双工（HFDD）系统中的移动用户分配给上行（UL）子帧的第一UL组和第二UL组以及下行链路（DL）的第一DL组和第二DL组的方法 ）子帧，其中UL子帧被分配了第一载波频率，并且DL子帧被分配了第二载波频率。 一种方法包括确定多种移动用户的每个移动用户的数据类型，确定接收CINR（载波干扰加噪声比）以及确定多普勒频率参数。 基于第一UL组，第二UL组，第一DL组和第二DL组的持续时间，将多个移动用户分配给第一UL组，第二UL组，第一DL组和第二DL组 DL组，并且基于移动用户的数据类型，CINR，多普勒频率扩展中的至少一个以及先前分配给第一UL组的第一UL组，第一DL组和 第二DL组。

公开(公告)号：US20090207762A1

公开(公告)日：2009-08-20

申请号：US12378604

申请日：2009-02-18

申请人： Louay Jalloul ,  Harold ARTES ,  Anuj Puri

发明人： Louay Jalloul ,  Harold ARTES ,  Anuj Puri

IPC分类号： H04J1/00 ,  H04W4/00 ,  H04B7/00

CPC分类号： H04L5/0037 ,  H04L5/006 ,  H04W4/08 ,  H04W8/186 ,  H04W72/0453

摘要： Methods assigning mobile users in a half-frequency division duplex (HFDD) system to a first UL group and second UL group of an uplink (UL) sub-frame, and to a first DL group and a second DL group of a downlink (DL) sub-frame, wherein the UL sub-frame is assigned a first carrier frequency and the DL sub-frame is assigned a second carrier frequency, are disclosed. One method includes determining a type of data, determining a receive CINR (carrier interference plus noise ratio), and determining a Doppler frequency parameter, for each mobile user of a plurality of mobile users. The plurality of mobile users to are assigned to the first UL group, the second UL group, the first DL group and the second DL group based on time durations of the first UL group, the second UL group, the first DL group and the second DL group, and based on and at least one of the data type, CINR, Doppler frequency spread of the mobile user, and a number of mobile users previously assigned to the first UL group, the second UL group, the first DL group and the second DL group.

摘要翻译： 将半频分双工（HFDD）系统中的移动用户分配给上行（UL）子帧的第一UL组和第二UL组以及下行链路（DL）的第一DL组和第二DL组的方法 ）子帧，其中UL子帧被分配了第一载波频率，并且DL子帧被分配了第二载波频率。 一种方法包括确定多种移动用户的每个移动用户的数据类型，确定接收CINR（载波干扰加噪声比）以及确定多普勒频率参数。 基于第一UL组，第二UL组，第一DL组和第二DL组的持续时间，将多个移动用户分配给第一UL组，第二UL组，第一DL组和第二DL组 DL组，并且基于移动用户的数据类型，CINR，多普勒频率扩展中的至少一个以及先前分配给第一UL组的第一UL组，第一DL组和 第二DL组。