公开(公告)号：US07809070B2

公开(公告)日：2010-10-05

申请号：US11753332

申请日：2007-05-24

申请人： Alexei Ashikhmin ,  Philip Alfred Whiting ,  Adriaan J. De Lind Van Wijngaarden

发明人： Alexei Ashikhmin ,  Philip Alfred Whiting ,  Adriaan J. De Lind Van Wijngaarden

IPC分类号： H04L27/28

CPC分类号： H04B3/487 ,  H04L27/2601

摘要： Techniques are disclosed for measuring crosstalk between at least two communication channels of a communication system. A receiver of the system receives a signal over a given one of the communication channels from a transmitter of the system. The receiver correlates the received signal with a sequence of time-domain signals associated with another of the communication channels, and generates a measure of crosstalk between the given communication channel and the other communication channel based on the correlation between the received signal and the sequence of time-domain signals. The sequence of time-domain signals may be selected from a designated set of M-sequences.

摘要翻译： 公开了用于测量通信系统的至少两个通信信道之间的串扰的技术。 系统的接收机从系统的发射器接收通过给定的一个通信信道的信号。 接收器将接收到的信号与与另一个通信信道相关联的时域信号序列进行相关，并且基于接收信号和序列之间的相关性，生成给定通信信道与另一通信信道之间的串扰量度 时域信号。 可以从指定的一组M序列中选择时域信号的序列。

公开(公告)号：US20090245081A1

公开(公告)日：2009-10-01

申请号：US12060653

申请日：2008-04-01

申请人： Alexei Ashikhmin ,  Adriaan J. De Lind Van Wijngaarden ,  Gerhard Guenter Kramer ,  Carl Jeremy Nuzman ,  Philip Alfred Whiting

发明人： Alexei Ashikhmin ,  Adriaan J. De Lind Van Wijngaarden ,  Gerhard Guenter Kramer ,  Carl Jeremy Nuzman ,  Philip Alfred Whiting

IPC分类号： H04J3/10

CPC分类号： H04M3/18 ,  H04M3/30 ,  H04M3/34 ,  H04M2203/058

摘要： 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.

摘要翻译： 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：US20090116582A1

公开(公告)日：2009-05-07

申请号：US11934347

申请日：2007-11-02

申请人： Alexei Ashikhmin ,  Adriaan J. De Lind Van Wijngaarden ,  Gerhard Guenter Theodor Kramer ,  Philip Alfred Whiting ,  Miroslav Zivkovic

发明人： Alexei Ashikhmin ,  Adriaan J. De Lind Van Wijngaarden ,  Gerhard Guenter Theodor Kramer ,  Philip Alfred Whiting ,  Miroslav Zivkovic

IPC分类号： H04L25/49

CPC分类号： H04B3/32 ,  H04B3/487

摘要： 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.

摘要翻译： 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：US08300726B2

公开(公告)日：2012-10-30

申请号：US11934347

申请日：2007-11-02

申请人： Alexei Ashikhmin ,  Adriaan J. De Lind Van Wijngaarden ,  Gerhard Guenter Theodor Kramer ,  Philip Alfred Whiting ,  Miroslav Zivkovic

发明人： Alexei Ashikhmin ,  Adriaan J. De Lind Van Wijngaarden ,  Gerhard Guenter Theodor Kramer ,  Philip Alfred Whiting ,  Miroslav Zivkovic

IPC分类号： H04K1/02

CPC分类号： H04B3/32 ,  H04B3/487

摘要： 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.

摘要翻译： 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：US08300518B2

公开(公告)日：2012-10-30

申请号：US12060653

申请日：2008-04-01

申请人： Alexei Ashikhmin ,  Adriaan J. De Lind Van Wijngaarden ,  Gerhard Guenter Theodor Kramer ,  Carl Jeremy Nuzman ,  Philip Alfred Whiting

发明人： Alexei Ashikhmin ,  Adriaan J. De Lind Van Wijngaarden ,  Gerhard Guenter Theodor Kramer ,  Carl Jeremy Nuzman ,  Philip Alfred Whiting

IPC分类号： H04J3/10

CPC分类号： H04M3/18 ,  H04M3/30 ,  H04M3/34 ,  H04M2203/058

摘要： 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.

摘要翻译： 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：US20080291989A1

公开(公告)日：2008-11-27

申请号：US11753332

申请日：2007-05-24

申请人： Alexei Ashikhmin ,  Philip Alfred Whiting ,  Adriaan J. De Lind Van Wijngaarden

发明人： Alexei Ashikhmin ,  Philip Alfred Whiting ,  Adriaan J. De Lind Van Wijngaarden

IPC分类号： H04B17/00 ,  H04J1/12 ,  H04L27/28

CPC分类号： H04B3/487 ,  H04L27/2601

摘要： Techniques are disclosed for measuring crosstalk between at least two communication channels of a communication system. A receiver of the system receives a signal over a given one of the communication channels from a transmitter of the system. The receiver correlates the received signal with a sequence of time-domain signals associated with another of the communication channels, and generates a measure of crosstalk between the given communication channel and the other communication channel based on the correlation between the received signal and the sequence of time-domain signals. The sequence of time-domain signals may be selected from a designated set of M-sequences.

摘要翻译： 公开了用于测量通信系统的至少两个通信信道之间的串扰的技术。 系统的接收机从系统的发射器接收通过给定的一个通信信道的信号。 接收器将接收到的信号与与另一个通信信道相关联的时域信号序列进行相关，并且基于接收信号和序列之间的相关性，生成给定通信信道与另一通信信道之间的串扰量度 时域信号。 可以从指定的一组M序列中选择时域信号的序列。

公开(公告)号：US07860044B2

公开(公告)日：2010-12-28

申请号：US12130253

申请日：2008-05-30

申请人： Alexei E. Ashikhmin ,  Hungkei Keith Chow ,  Adriaan J. De Lind Van Wijngaarden ,  Jan Willem Hellenthal ,  Jean Gerardus Leonardus Jennen ,  Gerhard Guenter Theodor Kramer ,  Carl Robert Posthuma ,  Harmanus van Tellingen ,  Philip Alfred Whiting ,  Miroslav Zivkovic

发明人： Alexei E. Ashikhmin ,  Hungkei Keith Chow ,  Adriaan J. De Lind Van Wijngaarden ,  Jan Willem Hellenthal ,  Jean Gerardus Leonardus Jennen ,  Gerhard Guenter Theodor Kramer ,  Carl Robert Posthuma ,  Harmanus van Tellingen ,  Philip Alfred Whiting ,  Miroslav Zivkovic

IPC分类号： H04B7/204

CPC分类号： H04L5/14 ,  H04J3/0682 ,  H04L5/0023 ,  H04L5/0058

摘要： A multi-channel processing module is arranged in series with multiple channels of a communication system. The processing module synchronizes downstream symbols among the channels, and synchronizes downstream symbols for at least a given one of the channels with upstream symbols for that channel. The synchronization of downstream symbols among the channels and the synchronization of downstream symbols for at least the given channel with upstream symbols for that channel are collectively achieved by adjusting downstream and upstream adjustable delay elements associated with respective downlink and uplink signal paths in the multi-channel processing module. The channels may comprise respective subscriber lines of a DSL communication system.

摘要翻译： 多通道处理模块与通信系统的多个通道串联布置。 处理模块同步信道之间的下游符号，并且为至少给定的一个信道同步用于该信道的上行符号的下游符号。 通过调整与多个信道中的相应下行链路和上行链路信号路径相关联的下游和上游可调节延迟单元，共同地实现至少给定信道的下行符号与下行符号之间的同步，以及用于该信道的上行符号的下游符号的同步 处理模块。 信道可以包括DSL通信系统的相应用户线路。

公开(公告)号：US20090060013A1

公开(公告)日：2009-03-05

申请号：US12197409

申请日：2008-08-25

申请人： Alexei E. Ashikhmin ,  Adriaan J. De Lind Van Wijngaarden ,  Gerhard Guenter Theodor Kramer ,  Jochen Maes ,  Carl Jeremy Nuzman ,  Carl Robert Posthuma ,  Danny Van Bruyssel ,  Jan S. Verlinden ,  Philip Alfred Whiting ,  Miroslav Zivkovic

发明人： Alexei E. Ashikhmin ,  Adriaan J. De Lind Van Wijngaarden ,  Gerhard Guenter Theodor Kramer ,  Jochen Maes ,  Carl Jeremy Nuzman ,  Carl Robert Posthuma ,  Danny Van Bruyssel ,  Jan S. Verlinden ,  Philip Alfred Whiting ,  Miroslav Zivkovic

IPC分类号： H04L5/16

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

摘要： 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.

摘要翻译： 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：US20090059780A1

公开(公告)日：2009-03-05

申请号：US11848684

申请日：2007-08-31

申请人： Adriaan J. De Lind Van Wijngaarden ,  Gerhard Guenter Theodor Kramer ,  Carl J. Nuzman ,  Philip Alfred Whiting ,  Miroslav Zivkovic

发明人： Adriaan J. De Lind Van Wijngaarden ,  Gerhard Guenter Theodor Kramer ,  Carl J. Nuzman ,  Philip Alfred Whiting ,  Miroslav Zivkovic

IPC分类号： H04J1/12

CPC分类号： H04B3/32

摘要： 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.

摘要翻译： 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机中的相应的一个。 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：US08081560B2

公开(公告)日：2011-12-20

申请号：US11848684

申请日：2007-08-31

申请人： Adriaan J. De Lind Van Wijngaarden ,  Gerhard Guenter Theodor Kramer ,  Carl J. Nuzman ,  Philip Alfred Whiting ,  Miroslav Zivkovic

发明人： Adriaan J. De Lind Van Wijngaarden ,  Gerhard Guenter Theodor Kramer ,  Carl J. Nuzman ,  Philip Alfred Whiting ,  Miroslav Zivkovic

IPC分类号： H04J1/12

CPC分类号： H04B3/32

摘要： 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.

摘要翻译： 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机中的相应的一个。 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。