公开(公告)号：US20120069853A1

公开(公告)日：2012-03-22

申请号：US13308153

申请日：2011-11-30

申请人： Lihe Liu ,  Jie Lv

发明人： Lihe Liu ,  Jie Lv

IPC分类号： H04J99/00

CPC分类号： H04M3/304 ,  H04M11/062

摘要： An embodiment of the present disclosure provides a method for data acquisition. The method includes the following steps: transmitting a request message for acquiring line parameters to a central-office end access apparatus, and obtaining a time parameter T1 when the line parameter acquisition is started; receiving line parameter information reported by the central-office end access apparatus, and obtaining a time parameter T2 of a line; and comparing the time parameter T1 with the time parameter T2 of the line, and saving the received line parameter information if the time parameter T1 is larger than the time parameter T2 of the line. Embodiments of the present disclosure further provide an apparatus and a system for data acquisition.

摘要翻译： 本公开的实施例提供了一种用于数据采集的方法。 该方法包括以下步骤：向中心局端接入装置发送用于获取线路参数的请求消息，并且当线路​​参数采集开始时获取时间参数T1; 接收中心局端接入装置报告的线路参数信息，获取线路的时间参数T2; 并且将时间参数T1与线路的时间参数T2进行比较，并且如果时间参数T1大于线路的时间参数T2，则保存接收到的线路参数信息。 本公开的实施例还提供了一种用于数据采集的装置和系统。

公开(公告)号：US20100254528A1

公开(公告)日：2010-10-07

申请号：US12650781

申请日：2009-12-31

申请人： Dong Wei ,  Lihe Liu

发明人： Dong Wei ,  Lihe Liu

IPC分类号： H04M9/08

CPC分类号： H04B3/32 ,  H04B3/487

摘要： An apparatus comprising a transmitter configured to transmit a digital subscriber line (DSL) signal in a line from a plurality of subscriber lines according to a reference virtual noise power spectral density (PSD), wherein the reference virtual noise PSD is based on an upper bound for a worst-case far-end crosstalk (FEXT) PSD in the subscriber lines. Also included is an apparatus comprising at least one processor configured to implement a method comprising obtaining an upper bound for a worst-case FEXT PSD for a plurality of subscriber lines, obtaining a referred virtual noise PSD based on the worst-case FEXT PSD for the lines, and determining a bit-loading for the lines based on the referred virtual noise or a scaled version of the receiver-referred virtual noise.

摘要翻译： 一种装置，包括：发射机，被配置为根据参考虚拟噪声功率谱密度（PSD）从多个用户线路发送一行中的数字用户线路（DSL）信号，其中所述参考虚拟噪声PSD基于上限 用于用户线路中的最坏情况的远端串扰（FEXT）PSD。 还包括一种装置，包括至少一个处理器，该处理器被配置为实现一种方法，包括获得用于多条用户线路的最坏情况FEXT PSD的上限，基于最坏情况的FEXT PSD获得所引用的虚拟噪声PSD 并且基于所引用的虚拟噪声或接收机引用的虚拟噪声的缩放版本来确定线的位加载。

公开(公告)号：US08335275B2

公开(公告)日：2012-12-18

申请号：US12824019

申请日：2010-06-25

申请人： Lihe Liu

发明人： Lihe Liu

IPC分类号： H04B15/00

CPC分类号： H04M3/2245 ,  H04M3/34 ,  H04M11/062

摘要： A method, a device, and a system for managing lines are provided. The method includes: collecting showtime parameters of user lines (11); calculating crosstalk information of the user lines according to the collected showtime parameters (12); and grouping the user lines according to the calculated crosstalk information of the user lines (13). Thus, the dynamic spectrum management (DSM) algorithm is made to be more simple and faster, and the user lines are grouped more directly and exactly.

摘要翻译： 提供了一种用于管理线路的方法，设备和系统。 该方法包括：收集用户行（11）的播放时间参数; 根据收集的播放时间参数（12）计算用户线路的串扰信息; 以及根据计算出的用户行（13）的串扰信息对用户行进行分组。 因此，使动态频谱管理（DSM）算法变得更加简单和快速，并且更直接和准确地分组用户线。

公开(公告)号：US20090268601A1

公开(公告)日：2009-10-29

申请号：US12433287

申请日：2009-04-30

申请人： Liming Fang ,  Lihe Liu

发明人： Liming Fang ,  Lihe Liu

IPC分类号： H04J1/12

CPC分类号： H04B3/32

摘要： A method and apparatus for spectrum management in an xDSL system are disclosed. The method mainly include: determining a transmit PSD mask according to a crosstalk status of a line; performing IWF operation using the transmit PSD mask; and dynamically managing line spectrum according to the result of the IWF operation. Therefore, various embodiments of the present invention allow the DSLAM performance to approximate the OSM performance without the need for a center controller and with a rather simple algorithm in a severe crosstalk scenario. Moreover, the embodiments of the present invention may help to simply the design of DSLAM optimization system and achieve a proper balance between the DSLAM performance and the complexity.

摘要翻译： 公开了一种在xDSL系统中进行频谱管理的方法和装置。 该方法主要包括：根据线路的串扰状态确定发射PSD掩码; 使用发送PSD掩码执行IWF操作; 并根据IWF操作的结果动态管理线路频谱。 因此，本发明的各种实施例允许DSLAM性能近似OSM性能，而不需要中央控制器，并且在严格的串扰情况下使用相当简单的算法。 此外，本发明的实施例可以帮助简单地设计DSLAM优化系统，并且在DSLAM性能和复杂性之间实现适当的平衡。

公开(公告)号：US08406416B2

公开(公告)日：2013-03-26

申请号：US12650781

申请日：2009-12-31

申请人： Dong Wei ,  Lihe Liu

发明人： Dong Wei ,  Lihe Liu

IPC分类号： H04M9/08

CPC分类号： H04B3/32 ,  H04B3/487

摘要： An apparatus comprising a transmitter configured to transmit a digital subscriber line (DSL) signal in a line from a plurality of subscriber lines according to a reference virtual noise power spectral density (PSD), wherein the reference virtual noise PSD is based on an upper bound for a worst-case far-end crosstalk (FEXT) PSD in the subscriber lines. Also included is an apparatus comprising at least one processor configured to implement a method comprising obtaining an upper bound for a worst-case FEXT PSD for a plurality of subscriber lines, obtaining a referred virtual noise PSD based on the worst-case FEXT PSD for the lines, and determining a bit-loading for the lines based on the referred virtual noise or a scaled version of the receiver-referred virtual noise.

摘要翻译： 一种装置，包括：发射机，被配置为根据参考虚拟噪声功率谱密度（PSD）从多个用户线路发送一行中的数字用户线路（DSL）信号，其中所述参考虚拟噪声PSD基于上限 用于用户线路中的最坏情况的远端串扰（FEXT）PSD。 还包括一种装置，包括至少一个处理器，该处理器被配置为实现一种方法，包括获得用于多条用户线路的最坏情况FEXT PSD的上限，基于最坏情况下的FEXT PSD获得所引用的虚拟噪声PSD 并且基于所引用的虚拟噪声或接收机引用的虚拟噪声的缩放版本来确定线的位加载。

公开(公告)号：US08320526B2

公开(公告)日：2012-11-27

申请号：US12857045

申请日：2010-08-16

申请人： Raphael Cendrillon ,  Liming Fang ,  Lihe Liu

发明人： Raphael Cendrillon ,  Liming Fang ,  Lihe Liu

IPC分类号： H04M1/24 ,  H04M3/08 ,  H04M3/22

CPC分类号： H04L5/14 ,  H04B3/32 ,  H04L5/0007 ,  H04L5/0046

摘要： The embodiments of the present invention disclose a spectrum optimization method and device and digital subscriber line system, the method comprising: calculating according to acquired information of each of respective subcarriers on the DSL line to be optimized to obtain optimized transmission power of a subcarrier to be optimized in a DSL line to be optimized; calculating a transmission rate of the DSL line to be optimized according to the optimized transmission power; and comparing the transmission rate with a target rate of the DSL line to be optimized, and if the transmission rate is less than the target rate, updating the information of an optimized subcarrier, and performing a recalculation. The embodiments of the present invention can overcome the problem of the conventional art that it is difficult to converge the rate weighted coefficient, and improve the rate of a given subscriber line while reduce power loss caused by the given subscriber line to other subscriber lines in the same bundle of cables.

摘要翻译： 本发明的实施例公开了一种频谱优化方法和装置和数字用户线系统，该方法包括：根据要优化的DSL线上每个子载波的获取信息进行计算，以获得子载波的优化发射功率 优化在DSL线路上进行优化; 根据优化的传输功率计算要优化的DSL线路的传输速率; 将传输速率与要优化的DSL线路的目标速率进行比较，如果传输速率小于目标速率，则更新优化的副载波的信息，并执行重新计算。 本发明的实施例可以克服传统技术难以收敛速率加权系数的问题，并提高给定用户线路的速率，同时减少给定用户线路对其他用户线路造成的功率损耗 同一捆电缆。

公开(公告)号：US08000219B2

公开(公告)日：2011-08-16

申请号：US12433287

申请日：2009-04-30

申请人： Liming Fang ,  Lihe Liu

发明人： Liming Fang ,  Lihe Liu

IPC分类号： H04J1/12

CPC分类号： H04B3/32

摘要： A method and apparatus for spectrum management in an xDSL system are disclosed. The method mainly include: determining a transmit PSD mask according to a crosstalk status of a line; performing IWF operation using the transmit PSD mask; and dynamically managing line spectrum according to the result of the IWF operation. Therefore, various embodiments of the present invention allow the DSLAM performance to approximate the OSM performance without the need for a center controller and with a rather simple algorithm in a severe crosstalk scenario. Moreover, the embodiments of the present invention may help to simply the design of DSLAM optimization system and achieve a proper balance between the DSLAM performance and the complexity.

摘要翻译： 公开了一种在xDSL系统中进行频谱管理的方法和装置。 该方法主要包括：根据线路的串扰状态确定发射PSD掩码; 使用发送PSD掩码执行IWF操作; 并根据IWF操作的结果动态管理线路频谱。 因此，本发明的各种实施例允许DSLAM性能近似OSM性能，而不需要中央控制器，并且在严格的串扰情况下使用相当简单的算法。 此外，本发明的实施例可以帮助简单地设计DSLAM优化系统，并且在DSLAM性能和复杂性之间实现适当的平衡。

公开(公告)号：US20100260282A1

公开(公告)日：2010-10-14

申请号：US12824019

申请日：2010-06-25

申请人： Lihe Liu

发明人： Lihe Liu

IPC分类号： H04B15/00

CPC分类号： H04M3/2245 ,  H04M3/34 ,  H04M11/062

摘要： A method, a device, and a system for managing lines are provided. The method includes: collecting showtime parameters of user lines (11); calculating crosstalk information of the user lines according to the collected showtime parameters (12); and grouping the user lines according to the calculated crosstalk information of the user lines (13). Thus, the dynamic spectrum management (DSM) algorithm is made to be more simple and faster, and the user lines are grouped more directly and exactly.

摘要翻译： 提供了一种用于管理线路的方法，设备和系统。 该方法包括：收集用户行（11）的播放时间参数; 根据收集的播放时间参数（12）计算用户线路的串扰信息; 以及根据计算出的用户行（13）的串扰信息对用户行进行分组。 因此，使动态频谱管理（DSM）算法变得更加简单和快速，并且更直接和准确地分组用户线。