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1. 发明申请

US20100202281A1 Simultaneous Estimation of Multiple Channel Coefficients Using a Common Probing Sequence 有权
标题翻译：使用通用探测序列同时估计多通道系数
公开(公告)号：US20100202281A1
公开(公告)日：2010-08-12
申请号：US12370148
申请日：2009-02-12
申请人： Gerhard Guenter Theodor Kramer , Carl Jeremy Nuzman
发明人： Gerhard Guenter Theodor Kramer , Carl Jeremy Nuzman
IPC分类号： H04J1/12
CPC分类号： H04L25/0244 , H04B3/487 , H04L25/0224
摘要： 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.
摘要翻译：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。

2. 发明授权

US08243578B2 Simultaneous estimation of multiple channel coefficients using a common probing sequence 有权
标题翻译：使用公共探测序列同时估计多个信道系数
公开(公告)号：US08243578B2
公开(公告)日：2012-08-14
申请号：US12435492
申请日：2009-05-05
申请人： Gerhard Guenter Theodor Kramer , Carl Jeremy Nuzman
发明人： Gerhard Guenter Theodor Kramer , Carl Jeremy Nuzman
IPC分类号： H04J1/12
CPC分类号： H04L25/0244 , H04B3/487 , H04L25/0224
摘要： 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 generated based on respective ones of a plurality of different frequency expansions. For example, each of the distinct probing signals may be generated based on a distinct combination of a common probing sequence and a selected one of the plurality of different frequency expansions.
摘要翻译：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，接入节点发送基于多个不同频率扩展中的相应信号产生的多个不同的探测信号。例如，可以基于公共探测序列和多个不同频率扩展中的所选择的一个的不同组合来生成每个不同的探测信号。

3. 发明申请

US20090060013A1 OPTIMIZING PRECODER SETTINGS USING AVERAGE SINR REPORTS FOR GROUPS OF TONES 有权
标题翻译：使用平均组合报告的优化预处理器设置
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。

4. 发明授权

US08830812B2 Optimizing precoder settings using average SINR reports for groups of tones 有权
标题翻译：使用平均SINR报告优化预编码器设置，以了解组音
公开(公告)号：US08830812B2
公开(公告)日：2014-09-09
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： H04J1/12 , H04B3/20
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，基于接收的值更新矩阵，该矩阵被配置为通过各个信号副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。

5. 发明授权

US08300518B2 Fast seamless joining of channels in a multi-channel communication system 有权
标题翻译：在多通道通信系统中快速无缝连接通道
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。

6. 发明授权

US08218419B2 Simultaneous estimation of multiple channel coefficients using a common probing sequence 有权
标题翻译：使用公共探测序列同时估计多个信道系数
公开(公告)号：US08218419B2
公开(公告)日：2012-07-10
申请号：US12370148
申请日：2009-02-12
申请人： Gerhard Guenter Theodor Kramer , Carl Jeremy Nuzman
发明人： Gerhard Guenter Theodor Kramer , Carl Jeremy Nuzman
IPC分类号： H04J1/12
CPC分类号： H04L25/0244 , H04B3/487 , H04L25/0224
摘要： 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.
摘要翻译：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。

7. 发明申请

US20100202554A1 SIMULTANEOUS ESTIMATION OF MULTIPLE CHANNEL COEFFICIENTS USING A COMMON PROBING SEQUENCE 有权
标题翻译：使用普通探测序列同时估计多个通道系数
公开(公告)号：US20100202554A1
公开(公告)日：2010-08-12
申请号：US12435492
申请日：2009-05-05
申请人： Gerhard Guenter Theodor Kramer , Carl Jeremy Nuzman
发明人： Gerhard Guenter Theodor Kramer , Carl Jeremy Nuzman
IPC分类号： H04B15/00
CPC分类号： H04L25/0244 , H04B3/487 , H04L25/0224
摘要： 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 generated based on respective ones of a plurality of different frequency expansions. For example, each of the distinct probing signals may be generated based on a distinct combination of a common probing sequence and a selected one of the plurality of different frequency expansions.
摘要翻译：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，接入节点发送基于多个不同频率扩展中的相应的信号产生的多个不同的探测信号。例如，可以基于公共探测序列和多个不同频率扩展中的所选择的一个的不同组合来生成每个不同的探测信号。

8. 发明申请

US20090304056A1 Signal suspension and resumption in DSL systems 有权
标题翻译： DSL系统中的信号暂停和恢复
公开(公告)号：US20090304056A1
公开(公告)日：2009-12-10
申请号：US12157461
申请日：2008-06-10
申请人： Adriaan J. De Lind Van Wijngaarden , Jochen Maes , Carl Jeremy Nuzman , Danny Van Bruyssel
发明人： Adriaan J. De Lind Van Wijngaarden , Jochen Maes , Carl Jeremy Nuzman , Danny Van Bruyssel
IPC分类号： H04B1/38 , H04L5/16 , H04B17/00
CPC分类号： H04B3/46 , H04B3/32 , H04M11/062
摘要： A method includes maintaining temporally parallel DSL data communication sessions with DSL modems of a group via a set of lines. The method includes, in response to substantially stopping to receive DSL communications from one of the DSL modems via one of the lines, transmitting a substantially reduced average power to the one of the lines and monitoring the one of the lines to determine whether DSL communications have restarted being received from the one of the DSL modems. The method also includes resuming the maintaining of the temporally parallel DSL communication sessions in response to the monitoring determining that DSL communications have restarted being received from the one of the DSL modems.
摘要翻译：一种方法包括经由一组线路来维持与组的DSL调制解调器的时间上并行的DSL数据通信会话。该方法包括响应于基本上停止经由线路之一从DSL调制解调器之一接收DSL通信，向该线路之一发送基本上减少的平均功率，并监视该线路之一以确定DSL通信是否具有从DSL调制解调器之一重新开始接收。该方法还包括响应于监测确定从DSL调制解调器之一接收到DSL通信已重新启动，恢复时间上并行的DSL通信会话的维护。

9. 发明申请

US20090245081A1 Fast Seamless Joining of Channels in a Multi-Channel Communication System 有权
标题翻译：在多通道通信系统中快速无缝连接通道
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。

10. 发明授权

US07050668B2 Methods and apparatus for control of optical switching arrays that minimize bright state switching 有权
标题翻译：用于控制光开关阵列的方法和装置，其使亮状态切换最小化
公开(公告)号：US07050668B2
公开(公告)日：2006-05-23
申请号：US10464929
申请日：2003-06-19
申请人： Krishnan Kumaran , Nachi K. Nithi , Carl Jeremy Nuzman
发明人： Krishnan Kumaran , Nachi K. Nithi , Carl Jeremy Nuzman
IPC分类号： G02B6/26 , G02B6/42
CPC分类号： H04Q11/0005 , H04Q2011/0049
摘要： Techniques and systems for control of optical switching arrays are described. A switch array controller according to an aspect of the present invention operates so as to achieve reduced power consumption and maintain crosstalk within acceptable limits. Various rules are applied in order to insure that the desired criteria are met. In order to reduce transient effects, switching from one output to another is accomplished in a sequence chosen to maximize the number of transitions occurring in those portions of the array not carrying a signal, and to minimize the number of transitions that occur in portions of the array carrying the signal. Transitions are made in the portion of the array to which the signal will be directed, then a switch is transitioned between the old and new signal paths, and finally further transitions are made in the portion of the array within which the signal was previously directed.
摘要翻译：描述了用于控制光学开关阵列的技术和系统。根据本发明的一个方面的开关阵列控制器的操作是为了实现降低的功耗并将串扰保持在可接受的限度内。应用各种规则以确保满足期望的标准。为了减少瞬态效应，从一个输出到另一个输出的切换是按照选择的序列来实现的，以使不发生信号的阵列的这些部分中发生的转换次数最大化，并且最小化在阵列携带信号。在信号将被引导到的阵列的部分中进行转换，然后在旧信号路径和新信号路径之间转换开关，并且最后在阵列的先前指向信号的部分中进行进一步的转换。

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