公开(公告)号：WO2010093663A1

公开(公告)日：2010-08-19

申请号：PCT/US2010/023709

申请日：2010-02-10

Applicant: ALCATEL-LUCENT USA INC. ,  KRAMER, Gerhard Guenter, Theodor ,  NUZMAN, Carl, Jeremy

Inventor： KRAMER, Gerhard Guenter, Theodor ,  NUZMAN, Carl, Jeremy

IPC: H04B3/46 ,  H04L25/02 ,  H04L27/26

CPC classification number: H04L25/0244 ,  H04B3/487 ,  H04L25/0224

Abstract: An access node of a communication system comprises a plurality of transmitters adapted for communication with at least one receiver. The access node is operative to simultaneously estimate channel coefficients between multiple ones of the transmitters and the receiver, and to utilize the estimated channel coefficients to control at least one data signal sent by at least one of the multiple transmitters to the receiver. In the process of simultaneously estimating the channel coefficients, the access node transmits a plurality of distinct probing signals, each of which is generated based on a distinct combination of a common probing sequence and a selected one of a plurality of different frequency expansions. The access node may comprise at least a portion of at least one central office of a DSL communication system.

Abstract translation: 通信系统的接入节点包括适于与至少一个接收机通信的多个发射机。 接入节点可操作以同时估计发射机和接收机之间的信道系数，并且利用所估计的信道系数来控制由至少一个发射机发射到接收机的至少一个数据信号。 在同时估计信道系数的过程中，接入节点发送多个不同的探测信号，每个探测信号基于公共探测序列和多个不同频率扩展中选择的一个的不同组合来生成。 接入节点可以包括DSL通信系统的至少一个中心局的至少一部分。

公开(公告)号：WO2009032093A2

公开(公告)日：2009-03-12

申请号：PCT/US2008/010058

申请日：2008-08-25

Applicant: LUCENT TECHNOLOGIES, INC. ,  ALCATEL LUCENT ,  GUENACH, Mamoun ,  KRAMER, Gerhard, Guenter, Theodor ,  LOUVEAUX, Jerome ,  MAES, Jochen ,  PEETERS, Michael ,  VANDENDORPE, Luc ,  VERLINDEN, Jan, Sylvia ,  WHITING, Philip, Alfred ,  YSEBAERT, Geert, Bert ,  ZIVKOVIC, Miroslav

Inventor： GUENACH, Mamoun ,  KRAMER, Gerhard, Guenter, Theodor ,  LOUVEAUX, Jerome ,  MAES, Jochen ,  PEETERS, Michael ,  VANDENDORPE, Luc ,  VERLINDEN, Jan, Sylvia ,  WHITING, Philip, Alfred ,  YSEBAERT, Geert, Bert ,  ZIVKOVIC, Miroslav

IPC: H04L25/02

CPC classification number: H04L25/0204 ,  H04B3/32 ,  H04L1/20 ,  H04L25/03343

Abstract: A method involves performing a plurality of acts. The acts include transmitting a first signal stream to a first channel of a multi-channel communications medium while transmitting a second signal stream to a different second channel of the medium. The second signal stream is substantially temporally correlated to the first signal stream. The method includes receiving an SINR measured at a receiver configured to receive signals from the first channel. The SINR is measured while the receiver received the first signal stream. The method includes determining a channel matrix element between the first and second channels or a ratio of said channel matrix element to a diagonal element of the channel matrix. The act of determining is based on the received SINR.

Abstract translation: 一种方法涉及执行多个动作。 这些行为包括将第一信号流发射到多信道通信介质的第一信道，同时将第二信号流发射到介质的不同第二信道。 第二信号流与第一信号流基本上在时间上相关。 该方法包括接收在配置为接收来自第一信道的信号的接收机处测量的SINR。 在接收机接收到第一信号流时测量SINR。 该方法包括确定第一和第二信道之间的信道矩阵元素或者所述信道矩阵元素与信道矩阵的对角元素的比率。 确定的行为是基于收到的SINR。

公开(公告)号：WO2010077946A1

公开(公告)日：2010-07-08

申请号：PCT/US2009/068254

申请日：2009-12-16

Applicant: ALCATEL-LUCENT USA INC. ,  ESSIAMBRE, Rene--jean ,  WINZER, Peter, J. ,  KRAMER, Gerhard Guenter, Theodor ,  FOSCHINI, Gerard, J.

Inventor： ESSIAMBRE, Rene--jean ,  WINZER, Peter, J. ,  KRAMER, Gerhard Guenter, Theodor ,  FOSCHINI, Gerard, J.

IPC: H04B10/155

CPC classification number: H04B10/5053 ,  H04B10/5561

Abstract: An example method includes modulating an optical signal using a Phase Shift Keying (PSK) signal constellation, wherein signal points of the PSK signal constellation are located on at least two rings. The first ring has a first radius rl and a second ring has a second radius r2, wherein the first radius and second radius differ, and wherein the signal points are not located on a regular n-dimension lattice, where n is an integer. The regular n-dimension lattice is formed from a minimum number of lines parallel to an axis for each of the n-dimensions that connect ones of the signal points of the PSK signal constellation on either side of an origin of the axis. The second radius may be greater than the first radius, with the second radius a non-integer multiple of the first ring radius.

Abstract translation: 示例性方法包括使用相移键控（PSK）信号星座来调制光信号，其中PSK信号星座的信号点位于至少两个环上。 第一环具有第一半径rl，第二环具有第二半径r2，其中第一半径和第二半径不同，并且其中信号点不位于规则的n维晶格上，其中n是整数。 规则的n维格子由平行于轴线的最小数量的线形成，每个n维连接在轴原点两侧的PSK信号星座的信号点之一。 第二半径可以大于第一半径，第二半径是第一环半径的非整数倍。

公开(公告)号：WO2009058306A1

公开(公告)日：2009-05-07

申请号：PCT/US2008/012281

申请日：2008-10-29

Applicant: LUCENT TECHNOLOGIES INC. ,  ASHIKHMIN, Alexei ,  DE LIND VAN WIJNGAARDEN, Adriaan, J. ,  KRAMER, Gerhard Guenter, Theodor ,  WHITING, Philip, Alfred ,  ZIVKOVIC, Miroslav

Inventor： ASHIKHMIN, Alexei ,  DE LIND VAN WIJNGAARDEN, Adriaan, J. ,  KRAMER, Gerhard Guenter, Theodor ,  WHITING, Philip, Alfred ,  ZIVKOVIC, Miroslav

IPC: H04B3/32 ,  H04B3/46

CPC classification number: H04B3/32 ,  H04B3/487

Abstract: Techniques are disclosed that efficiently obtain channel crosstalk estimates in DSL systems and other communication systems that may include unsynchronized channels. For example, a method includes obtaining a first set of estimated measures of crosstalk for a first portion of a plurality of communication channels over which data signals are to be transmitted from a transmitter to a plurality of receivers, and interpolating a second set of estimated measures of crosstalk for a second portion of the plurality of communication channels based on the first set of estimated measures of crosstalk. The first portion of the plurality of communication channels may be a subset of the plurality of communication channels and the second portion of the plurality of communication channels is a remainder of the plurality of communication channels. Each estimated measure of crosstalk may relate to at least one tone associated with at least one of the plurality of communication channels.

Abstract translation: 公开了在DSL系统和可能包括不同步信道的其他通信系统中有效地获得信道串扰估计的技术。 例如，一种方法包括获得第一组估计的多个通信信道的第一部分的串扰测量值，数据信号将从该发送器发送到多个接收机，并且内插第二组估计度量 基于所述第一组估计的串扰测量值，所述多个通信信道的第二部分的串扰。 多个通信信道的第一部分可以是多个通信信道的子集，并且多个通信信道的第二部分是多个通信信道的剩余部分。 每个估计的串扰测量可以涉及与多个通信信道中的至少一个相关联的至少一个音调。

公开(公告)号：WO2009032092A1

公开(公告)日：2009-03-12

申请号：PCT/US2008/010057

申请日：2008-08-25

Applicant: LUCENT TECHNOLOGIES INC. ,  DE LIND VAN WIJNGAARDEN, Adriaan, J. ,  KRAMER, Gerhard Guenter, Theodor ,  NUZMAN, Carl, Jeremy ,  WHITING, Philip, Alfred ,  ZIVKOVIC, Miroslav

Inventor： DE LIND VAN WIJNGAARDEN, Adriaan, J. ,  KRAMER, Gerhard Guenter, Theodor ,  NUZMAN, Carl, Jeremy ,  WHITING, Philip, Alfred ,  ZIVKOVIC, Miroslav

IPC: H04B3/32

CPC classification number: H04B3/32

Abstract: Techniques are disclosed for compensating for crosstalk using adaptation of data signals transmitted over respective channels of a communication system. For example, a method includes the following steps. A first set of estimated measures of crosstalk is obtained for at least a selected portion of a plurality of communication channels over which data signals are to be transmitted from a transmitter to at least a selected portion of a plurality of receivers. A first set of data signals based on the first set of estimated measures of crosstalk is adapted to generate a first set of adjusted data signals. The first set of adjusted data signals is transmitted to corresponding ones of the plurality of receivers. A second set of estimated measures of crosstalk is obtained for the selected portion of the plurality of communication channels. A second set of data signals for transmission based on the second set of estimated measures of crosstalk is adapted to generate a second set of adjusted data signals. Iteration of the obtaining, adjusting and transmitting steps is performed so as to reduce an error between subsequent estimated measures of crosstalk and actual measures of crosstalk for the plurality of communication channels.

Abstract translation: 公开了用于通过在通信系统的各个信道上发送的数据信号的适配来补偿串扰的技术。 例如，一种方法包括以下步骤。 对于多个通信信道的至少一部分的数据信号将从发射机发送到多个接收机的至少一个选定部分，获得第一组估计的串扰度量。 基于第一组估计的串扰测量值的第一组数据信号适于产生第一组经调整的数据信号。 第一组经调整的数据信号被发送到多个接收器中的相应的一个。 针对多个通信信道的所选部分获得第二组估计的串扰度量。 用于基于第二组估计的串扰测量的用于传输的第二组数据信号适于产生第二组经调整的数据信号。 执行获取，调整和发送步骤的迭代，以减少后续估计的串扰测量与多个通信信道的串扰实际测量之间的误差。

公开(公告)号：WO2008123977A1

公开(公告)日：2008-10-16

申请号：PCT/US2008/004232

申请日：2008-04-01

Applicant: LUCENT TECHNOLOGIES INC. ,  KRAMER, Gerhard Guenter, Theodor ,  WHITING, Philip, Alfred ,  ZIVKOVIC, Miroslav

Inventor： KRAMER, Gerhard Guenter, Theodor ,  WHITING, Philip, Alfred ,  ZIVKOVIC, Miroslav

IPC: H04L27/26 ,  H04L25/03 ,  H04L25/02

CPC classification number: H04L25/0204 ,  H04B7/0417 ,  H04B7/0632 ,  H04B17/318 ,  H04B17/345 ,  H04J14/02 ,  H04L5/0023 ,  H04L25/0224 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: An apparatus includes a transmitter configured to transmit symbols to one or more receivers via a plurality of communication channels of a physical communication link. The transmitter is configured to estimate a phase of one or more off-diagonal elements of a channel matrix for the physical communication link based on values of signal-to-interference-plus-noise ratios at the one or more receivers.

Abstract translation: 一种装置包括：发射机，经配置以经由物理通信链路的多个通信信道向一个或多个接收机发送符号。 发射机被配置为基于一个或多个接收机处的信号与干扰加噪声比的值来估计用于物理通信链路的信道矩阵的一个或多个非对角线元素的相位。

公开(公告)号：WO2009123882A1

公开(公告)日：2009-10-08

申请号：PCT/US2009/038030

申请日：2009-03-24

Applicant: ALCATEL-LUCENT USA INC. ,  ASHIKHMIN, Alexei ,  DE LIND VAN WIJNGAARDEN, Adriaan, J. ,  KRAMER, Gerhard, Guenter, Theodor ,  NUZMAN, Carl, Jeremy ,  WHITING, Philip, Alfred

Inventor： ASHIKHMIN, Alexei ,  DE LIND VAN WIJNGAARDEN, Adriaan, J. ,  KRAMER, Gerhard, Guenter, Theodor ,  NUZMAN, Carl, Jeremy ,  WHITING, Philip, Alfred

IPC: H04M3/18 ,  H04M3/34 ,  H04M3/30

CPC classification number: H04M3/18 ,  H04M3/30 ,  H04M3/34 ,  H04M2203/058

Abstract: At least one channel is joined to a group of active channels in a communication system by transmitting control signals to configure respective customer premises equipment (CPE) of the active channels into a joining mode of operation, and transmitting a joining signature sequence to CPE of the joining channel over a downstream data signal path of the joining channel. A central office (CO) or other access node of the system receives correlation results from respective active channel CPE, estimates crosstalk from the joining channel into the active channels based on the correlation results, configures a precoder based on the estimated crosstalk, and adds the joining channel to the group of active channels. The channels may comprise respective subscriber lines of a DSL communication system.

Abstract translation: 通过发送控制信号将至少一个信道连接到通信系统中的一组活动信道，以将活动信道的相应客户驻地设备（CPE）配置为加入操作模式，并将加入签名序列发送到 在加入信道的下游数据信号路径上加入信道。 该系统的中心局（CO）或其他接入节点从相应的有源信道CPE接收相关结果，基于相关结果估计从加入信道到有源信道的串扰，基于所估计的串扰配置预编码器， 加入频道到活跃频道组。 信道可以包括DSL通信系统的相应用户线路。

公开(公告)号：WO2009038669A1

公开(公告)日：2009-03-26

申请号：PCT/US2008/010653

申请日：2008-09-12

Applicant: LUCENT TECHNOLOGIES INC. ,  ASHIKHMIN, Alexei ,  DE LIND VAN WIJNGAARDEN, Adriaan, J. ,  KRAMER, Gerhard Guenter, Theodor ,  MAES, Jochen ,  NUZMAN, Carl, Jeremy ,  POSTHUMA, Carl, Robert ,  VAN BRUYSSEL, Danny ,  VERLINDEN, Jan, Sylvia ,  WHITING, Philip, Alfred ,  ZIVKOVIC, Miroslav

Inventor： ASHIKHMIN, Alexei ,  DE LIND VAN WIJNGAARDEN, Adriaan, J. ,  KRAMER, Gerhard Guenter, Theodor ,  MAES, Jochen ,  NUZMAN, Carl, Jeremy ,  POSTHUMA, Carl, Robert ,  VAN BRUYSSEL, Danny ,  VERLINDEN, Jan, Sylvia ,  WHITING, Philip, Alfred ,  ZIVKOVIC, Miroslav

IPC: H04B3/32

CPC classification number: H04B3/32 ,  H04B7/0417 ,  H04B7/0632 ,  H04B17/318 ,  H04B17/345 ,  H04J14/02 ,  H04L5/0023 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: Techniques are disclosed for compensating for crosstalk using adaptation of data signals transmitted over respective channels of a communication network. In one example, a method comprises the following steps. Data is transmitted to a communication network device via a communication line during a sequence of periods. For each period of the sequence of periods, a separate value of a measure of crosstalk that was measured at the communication network device is received, each value being an average of measurements at the device of measures of crosstalk for a plurality of communication network signal subcarriers. For each individual signal subcarrier of the plurality, a matrix is updated based on the received values, the matrix being configured to precode data transmissions to the communication network device over the individual signal subcarrier. The communication network may be a DSL system, the signal subcarriers may be DSL tones, and the measure of crosstalk may be a SINR value.

Abstract translation: 公开了用于通过在通信网络的各个信道上发送的数据信号的适配来补偿串扰的技术。 在一个示例中，一种方法包括以下步骤。 在一段时间段内，数据通过通信线路传送到通信网络设备。 对于周期序列的每个周期，接收在通信网络设备处测量的串扰度量的单独值，每个值是在多个通信网络信号子载波的串扰测量装置处的测量的平均值 。 对于多个的每个单独的信号副载波，基于接收的值来更新矩阵，该矩阵被配置为通过各个信号子载波对数据传输进行通信网络设备的数据传输。 通信网络可以是DSL系统，信号子载波可以是DSL音调，并且串扰的测量可以是SINR值。

公开(公告)号：WO2009032093A3

公开(公告)日：2009-06-11

申请号：PCT/US2008010058

申请日：2008-08-25

Applicant: LUCENT TECHNOLOGIES INC ,  ALCATEL LUCENT ,  GUENACH MAMOUN ,  KRAMER GERHARD GUENTER THEODOR ,  LOUVEAUX JEROME ,  MAES JOCHEN ,  PEETERS MICHAEL ,  VANDENDORPE LUC ,  VERLINDEN JAN SYLVIA ,  WHITING PHILIP ALFRED ,  YSEBAERT GEERT BERT ,  ZIVKOVIC MIROSLAV

Inventor： GUENACH MAMOUN ,  KRAMER GERHARD GUENTER THEODOR ,  LOUVEAUX JEROME ,  MAES JOCHEN ,  PEETERS MICHAEL ,  VANDENDORPE LUC ,  VERLINDEN JAN SYLVIA ,  WHITING PHILIP ALFRED ,  YSEBAERT GEERT BERT ,  ZIVKOVIC MIROSLAV

IPC: H04L25/02

CPC classification number: H04L25/0204 ,  H04B3/32 ,  H04L1/20 ,  H04L25/03343

Abstract: A method involves performing a plurality of acts. The acts include transmitting a first signal stream to a first channel of a multi-channel communications medium while transmitting a second signal stream to a different second channel of the medium. The second signal stream is substantially temporally correlated to the first signal stream. The method includes receiving an SINR measured at a receiver configured to receive signals from the first channel. The SINR is measured while the receiver received the first signal stream. The method includes determining a channel matrix element between the first and second channels or a ratio of said channel matrix element to a diagonal element of the channel matrix. The act of determining is based on the received SINR.

Abstract translation: 一种方法涉及执行多个动作。 该动作包括：将第一信号流发送到多信道通信介质的第一信道，同时将第二信号流发送到介质的不同第二信道。 第二信号流与第一信号流基本上在时间上相关。 该方法包括接收在被配置为从第一信道接收信号的接收机处测量的SINR。 在接收器接收到第一信号流时测量SINR。 该方法包括确定第一和第二信道之间的信道矩阵元素或所述信道矩阵元素与信道矩阵的对角元素的比率。 确定的行为是基于收到的SINR。