专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09667464B2 Single ended line test methods for time duplex division devices 有权
公开(公告)号：US09667464B2
公开(公告)日：2017-05-30
申请号：US14355517
申请日：2012-02-14
申请人： Per-Erik Eriksson , Miguel Berg , Daniel Cederholm , Klas Ericson , Chenguang Lu
发明人： Per-Erik Eriksson , Miguel Berg , Daniel Cederholm , Klas Ericson , Chenguang Lu
IPC分类号： H04L27/26 , H04B3/46 , H04M3/30 , H04L5/14 , H04L12/26
CPC分类号： H04L27/2634 , H04B3/46 , H04L5/14 , H04L27/263 , H04L43/50 , H04M3/306
摘要： The present disclosure relates to a Time Duplex Division (TDD) modem and a method in such a modem for making Single Ended Line Test (SELT) measurements. The device comprises a transmitter and a receiver and it has a normal mode of TDD communication. In these devices, Time Domain Reflectometry (TDR) is used as line measurement. It has a number of drawbacks, and for overcoming said drawbacks, Frequency Domain Reflectometry (FDR) measurement techniques adapted for TDD devices are suggested.

2. 发明授权

US09166743B2 Method for handling transmission errors on a telecommunications transmission line 有权
标题翻译：在电信传输线上处理传输错误的方法
公开(公告)号：US09166743B2
公开(公告)日：2015-10-20
申请号：US13976665
申请日：2010-12-29
申请人： Per-Erik Eriksson , Chenguang Lu
发明人： Per-Erik Eriksson , Chenguang Lu
IPC分类号： H04L1/08 , H04L1/18 , H04L1/20
CPC分类号： H04L1/08 , H04L1/1867 , H04L1/1874 , H04L1/20
摘要： When data retransmission is used to handle errors caused by impulse noise, buffer memory requirements may be reduced and/or data rate increased by detecting impulse noise at the transmitting equipment and initiating retransmission in response to such detection rather than waiting for a retransmission indication from the receiving end. The decision to retransmit may be made dependent on the strength or other properties of the detected noise burst. The decision criterion may be made adaptive by correlating noise burst properties with received retransmission indications or the absence thereof.
摘要翻译：当使用数据重传来处理由脉冲噪声引起的错误时，可以通过检测发射设备的脉冲噪声并响应于这种检测而发起重传来减少缓冲存储器要求和/或数据速率，而不是等待来自接收端。重传的决定可以取决于检测到的噪声突发的强度或其他属性。可以通过将噪声突发特性与接收的重传指示相关联或其不存在来使决策标准适应。

3. 发明授权

US08724800B2 Method in a communication system 有权
标题翻译：通信系统中的方法
公开(公告)号：US08724800B2
公开(公告)日：2014-05-13
申请号：US13814265
申请日：2010-08-05
申请人： Chenguang Lu , Per-Erik Eriksson
发明人： Chenguang Lu , Per-Erik Eriksson
IPC分类号： H04M1/76 , H04J1/12
CPC分类号： H04B3/32 , H04M3/18 , H04M3/34 , H04M11/062
摘要： Method and arrangement in a Vector Control Entity for efficient selection of which crosstalk to cancel when applying partial vectoring in a DSL communication system. The method comprises calculating a respective crosstalk effect indicator, CEIij, for the crosstalk from each line j of a plurality J of lines in a vectoring group, to a plurality of tones Si of a line i in the vectoring group, based on the strength of the crosstalk from each line j to line i, and thus providing one CEIi-value, associated with the plurality Sj of tones, per line j. The method further comprises allocating partial-vectoring resources to cancellation of crosstalk, based on the calculated CEIs. The arrangement is adapted to enable the performance of the above described method.
摘要翻译：矢量控制实体中的方法和布置，用于在DSL通信系统中应用部分矢量化时，有效选择要消除的串扰。该方法包括基于矢量组中的线i的强度来计算针对矢量组中的多条线的每条线j的串扰到矢量组中的线i的多个音调Si的相应串扰效应指示符CEIij，每行j与每行j的串扰，并且因此提供与每个线j的多个Sj的多个Sj相关联的一个CEIi值。该方法还包括基于所计算的CEI，分配部分向量化资源以消除串扰。该装置适于实现上述方法的执行。

4. 发明授权

US08953760B2 Method in a communication system 有权
标题翻译：通信系统中的方法
公开(公告)号：US08953760B2
公开(公告)日：2015-02-10
申请号：US13814271
申请日：2010-08-05
申请人： Chenguang Lu , Per-Erik Eriksson
发明人： Chenguang Lu , Per-Erik Eriksson
IPC分类号： H04B3/32
CPC分类号： H04B3/32 , H04L1/0002 , H04M11/062
摘要： A method and arrangement are disclosed in a Vector Control Entity for enabling a fair bit rate distribution among lines of similar priority in a vectoring group, when applying partial vectoring in a DSL communication system. The method comprises calculating a rate balancing metric, RBM, for each line i within a priority group A, indicative of the ratio between the bit rate of a line i with a current vectoring resource allocation, and the estimated bit rate of line i assuming approximately no crosstalk within the vectoring group. The method further comprises allocating partial-vectoring resources to the line/s within the group A, based on the calculated RBMs, such as to reduce the difference in RBM between the lines. The method further comprises calculating an updated RBM for any line within the group A subjected to changes in vectoring resource allocation. The method may be iterated until certain criteria are fulfilled. The arrangement is adapted to enable the performance of the above described method.
摘要翻译：在矢量控制实体中公开了一种方法和装置，用于当在DSL通信系统中应用部分向量化时，能够在向量组中实现类似优先级的线之间的公平比特率分布。该方法包括计算优先级组A内的每一行i的速率平衡量度RBM，其指示线i与当前矢量化资源分配的比特率与估计的大致相似的线i的比特率之间的比率矢量组内无串扰。该方法还包括基于所计算的RBM将部分向量化资源分配给组A内的线路，以减少线路之间的RBM差异。该方法还包括计算经过改变向量资源分配的组A内的任何行的更新RBM。可以重复该方法，直到满足某些标准。该装置适于实现上述方法的执行。

5. 发明申请

US20130272110A1 Method for Handling Transmission Errors On a Telecommunications Transmission Line 有权
标题翻译：在电信传输线上处理传输错误的方法
公开(公告)号：US20130272110A1
公开(公告)日：2013-10-17
申请号：US13976665
申请日：2010-12-29
申请人： Per-Erik Eriksson , Chenguang Lu
发明人： Per-Erik Eriksson , Chenguang Lu
IPC分类号： H04L1/08
CPC分类号： H04L1/08 , H04L1/1867 , H04L1/1874 , H04L1/20
摘要： When data retransmission is used to handle errors caused by impulse noise, buffer memory requirements may be reduced and/or data rate increased by detecting impulse noise at the transmitting equipment and initiating retransmission in response to such detection rather than waiting for a retransmission indication from the receiving end. The decision to retransmit may be made dependent on the strength or other properties of the detected noise burst. The decision criterion may be made adaptive by correlating noise burst properties with received retransmission indications or the absence thereof.
摘要翻译：当使用数据重传来处理由脉冲噪声引起的错误时，可以通过检测发射设备的脉冲噪声并响应于这种检测而发起重传来减少缓冲存储器要求和/或数据速率，而不是等待来自接收端。重传的决定可以取决于检测到的噪声突发的强度或其他属性。可以通过将噪声突发特性与接收的重传指示相关联或其不存在来使决策标准适应。

6. 发明申请

US20130142319A1 Method In A Communication System 有权
标题翻译：通信系统中的方法
公开(公告)号：US20130142319A1
公开(公告)日：2013-06-06
申请号：US13814271
申请日：2010-08-05
申请人： Chenguang Lu , Per-Erik Eriksson
发明人： Chenguang Lu , Per-Erik Eriksson
IPC分类号： H04B3/32
CPC分类号： H04B3/32 , H04L1/0002 , H04M11/062
摘要： A method and arrangement are disclosed in a Vector Control Entity for enabling a fair bit rate distribution among lines of similar priority in a vectoring group, when applying partial vectoring in a DSL communication system. The method comprises calculating a rate balancing metric, RBM, for each line i within a priority group A, indicative of the ratio between the bit rate of a line i with a current vectoring resource allocation, and the estimated bit rate of line i assuming approximately no crosstalk within the vectoring group. The method further comprises allocating partial-vectoring resources to the line/s within the group A, based on the calculated RBMs, such as to reduce the difference in RBM between the lines. The method further comprises calculating an updated RBM for any line within the group A subjected to changes in vectoring resource allocation. The method may be iterated until certain criteria are fulfilled. The arrangement is adapted to enable the performance of the above described method.
摘要翻译：在矢量控制实体中公开了一种方法和装置，用于当在DSL通信系统中应用部分向量化时，能够在向量组中实现类似优先级的线之间的公平比特率分布。该方法包括计算优先级组A内的每一行i的速率平衡量度RBM，其指示线i与当前矢量化资源分配的比特率与估计的大致相似的线i的比特率之间的比率矢量组内无串扰。该方法还包括基于所计算的RBM将部分向量化资源分配给组A内的线路，以减少线路之间的RBM差异。该方法还包括计算经过改变向量资源分配的组A内的任何行的更新RBM。可以重复该方法，直到满足某些标准。该装置适于实现上述方法的执行。

7. 发明申请

US20130136254A1 Method In A Communication System 有权
标题翻译：通信系统中的方法
公开(公告)号：US20130136254A1
公开(公告)日：2013-05-30
申请号：US13814265
申请日：2010-08-05
申请人： Chenguang Lu , Per-Erik Eriksson
发明人： Chenguang Lu , Per-Erik Eriksson
IPC分类号： H04B3/32
CPC分类号： H04B3/32 , H04M3/18 , H04M3/34 , H04M11/062
摘要： Method and arrangement in a Vector Control Entity for efficient selection of which crosstalk to cancel when applying partial vectoring in a DSL communication system. The method comprises calculating a respective crosstalk effect indicator, CEIij, for the crosstalk from each line j of a plurality J of lines in a vectoring group, to a plurality of tones Si of a line i in the vectoring group, based on the strength of the crosstalk from each line j to line i, and thus providing one CEIi-value, associated with the plurality Sj of tones, per line j. The method further comprises allocating partial-vectoring resources to cancellation of crosstalk, based on the calculated CEIs. The arrangement is adapted to enable the performance of the above described method.
摘要翻译：矢量控制实体中的方法和布置，用于在DSL通信系统中应用部分矢量化时，有效选择要消除的串扰。该方法包括基于矢量组中的线i的强度来计算针对矢量组中的多条线的每条线j的串扰到矢量组中的线i的多个音调Si的相应串扰效应指示符CEIij，每行j与每行j的串扰，并且因此提供与每个线j的多个Sj的多个Sj相关联的一个CEIi值。该方法还包括基于所计算的CEI，分配部分向量化资源以消除串扰。该装置适于实现上述方法的执行。

8. 发明申请

US20120320959A1 METHOD AND ARRANGEMENT IN A DSL VECTORING SYSTEM 有权
标题翻译： DSL变形系统中的方法和布置
公开(公告)号：US20120320959A1
公开(公告)日：2012-12-20
申请号：US13581591
申请日：2010-08-23
申请人： Chenguang Lu , Per-Erik Eriksson
发明人： Chenguang Lu , Per-Erik Eriksson
IPC分类号： H04B17/00
CPC分类号： H04B3/32 , H04B3/487 , H04L27/2601 , H04M3/18 , H04M11/062
摘要： Method and arrangement in a Vectoring Control Entity, VCE, for handling disorderly events in a Digital Subscriber Line, DSL, system. The method involves a number of actions, to be performed when a disorderly event occurs on a line min a vectored group of DSL lines, and the transmission on line m is continued. The method comprises obtaining(104)error samples from Customer Premises Equipments, CPEs, connected to other lines in the vectored group of DSL lines. The method further comprises—calculating an estimate of the channel coefficients changed due to the disorderly event,based on the error samples, thus providing a partial channel estimate. Further, the method comprises—modifying (110) a downstream precoder, at least partly based on the partial channel estimate, such that retraining of the other lines in the vectored group due to the disorderly event is avoided. The arrangement is adapted to enable the performance of the above described method.
摘要翻译：矢量控制实体VCE中用于处理数字用户线DSL系统中无序事件的方法和布置。该方法涉及当在最小线路组DSL线路上发生无序事件时执行的多个动作，并且线路m上的传输继续进行。该方法包括从DSL线路向量组中的其他线路获得来自客户端设备（CPE）的（104）错误样本。该方法还包括 - 基于错误采样来计算由于无序事件而改变的信道系数的估计，从而提供部分信道估计。此外，该方法至少部分地基于部分信道估计来修改（110）下行预编码器，从而避免了由于无序事件导致的向导组中的其他线路的再训练。该装置适于实现上述方法的执行。

9. 发明授权

US09780830B2 Fast crosstalk limitation between modems 有权
公开(公告)号：US09780830B2
公开(公告)日：2017-10-03
申请号：US14342258
申请日：2011-08-31
申请人： Chenguang Lu , Per-Erik Eriksson
发明人： Chenguang Lu , Per-Erik Eriksson
IPC分类号： H04J3/10 , H04B3/32 , H04M11/06 , H04B3/487 , H04L5/00
CPC分类号： H04B3/32 , H04B3/487 , H04L5/00 , H04M11/062
摘要： A device for limiting crosstalk between vectoring modems connected to a group of communication lines comprises a subgroup determining element that obtains information of the division into subgroups, each subgroup being made up of lines experiencing cross-talk from each other, and assigns operational pilot sequences to the group according to the division, an operational sequence transmission control element that transmits the operational sequences on the lines to the modems, which sequences are mutually orthogonal to each other and each communication line receives a corresponding sequence, and a corrective action determining element that obtains cross-talk measurements related to the transmitted operational pilot sequences and determines, for each subgroup, cross-talk and corrective action based on measurements made for a number of sequence symbols, which number corresponds to the minimum number required for obtaining mutually orthogonal pilot sequences within the subgroup.

10. 发明申请

US20140219074A1 Adjusted Transmission in XDSL 有权
标题翻译： XDSL中的调整传输
公开(公告)号：US20140219074A1
公开(公告)日：2014-08-07
申请号：US14239875
申请日：2011-08-24
申请人： Chenguang Lu , Miguel Berg , Per-Erik Eriksson , Albin Johansson
发明人： Chenguang Lu , Miguel Berg , Per-Erik Eriksson , Albin Johansson
IPC分类号： H04B3/32
CPC分类号： H04B3/32 , H04J1/12 , H04J3/10 , H04L5/0062 , H04L25/03343 , H04L25/03885
摘要： Method and transmitting node for adjusting transmission over xDSL lines connected to the transmitting node. The method involves transmitting (1006) a first signal A1 on a first line (304), and transmitting (1008) a second signal A2 on a second line (306), the second signal A2 being related to the first signal A1. The method further involves adjusting (1010) the transmission of the second signal A2 on the second line (306), such that a contribution from the second signal A2 interferes constructively with a signal A1′ at the second end (304:2) of the first line (304), where the signal A1′ represents the signal A1 having propagated through the first line.
摘要翻译：用于通过连接到发送节点的xDSL线路调整传输的方法和发送节点。该方法包括在第一行（304）上发送（1006）第一信号A1，并在第二行（306）上发送（1008）第二信号A2，第二信号A2与第一信号A1相关。该方法还包括在第二线路（306）上调整（1010）第二信号A2的传输，使得来自第二信号A2的贡献建构性地干扰第二信号A2的第二端（304：2）处的信号A1' 第一行（304），其中信号A1'表示通过第一行传播的信号A1。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式