公开(公告)号：US08391125B2

公开(公告)日：2013-03-05

申请号：US12202921

申请日：2008-09-02

申请人： Jun Zhou ,  Gouzhou Long ,  Dong Wei ,  Liming Fang ,  Zihuan Chen

发明人： Jun Zhou ,  Gouzhou Long ,  Dong Wei ,  Liming Fang ,  Zihuan Chen

IPC分类号： H04J1/12 ,  H04J3/10

CPC分类号： H04Q11/04 ,  H04Q2213/13039 ,  H04Q2213/13099 ,  H04Q2213/13173 ,  H04Q2213/1319 ,  H04Q2213/13209 ,  H04Q2213/13335 ,  H04Q2213/13349

摘要： A method for managing a channel matrix is provided. The method includes: obtaining whether a user logs on or logs off; adding a history record of channel information of the user to a channel matrix when the user logs on; recording current channel information of the user in the channel matrix and deleting the channel information of the user from the channel matrix when the user logs off. The channel matrix may be timely updated based on when the user logs on or off. Accordingly, the channel crosstalk is eliminated timely and correctly according to the channel matrix, and the affection on the crosstalk eliminating capacity caused by the user logs on or logs off can be avoided.

摘要翻译： 提供了一种用于管理信道矩阵的方法。 该方法包括：获取用户是否登录或注销; 当用户登录时，将用户的频道信息的历史记录添加到频道矩阵; 在通道矩阵中记录用户的当前频道信息，并且在用户注销时从频道矩阵中删除用户的频道信息。 可以基于用户何时登录或关闭来及时更新信道矩阵。 因此，可以根据信道矩阵及时正确地消除信道串扰，并且可以避免由用户登录或注销引起的对串扰消除能力的影响。

公开(公告)号：US20080317035A1

公开(公告)日：2008-12-25

申请号：US12202921

申请日：2008-09-02

申请人： Jun Zhou ,  Guozhu Long ,  Dong Wei ,  Liming Fang ,  Zihuan Chen

发明人： Jun Zhou ,  Guozhu Long ,  Dong Wei ,  Liming Fang ,  Zihuan Chen

IPC分类号： H04L12/56 ,  H04L12/66

CPC分类号： H04Q11/04 ,  H04Q2213/13039 ,  H04Q2213/13099 ,  H04Q2213/13173 ,  H04Q2213/1319 ,  H04Q2213/13209 ,  H04Q2213/13335 ,  H04Q2213/13349

摘要： A method for managing a channel matrix is provided. The method includes: obtaining whether a user logs on or logs off; adding a history record of channel information of the user to a channel matrix when the user logs on; recording current channel information of the user in the channel matrix and deleting the channel information of the user from the channel matrix when the user logs off. The channel matrix may be timely updated based on when the user logs on or off. Accordingly, the channel crosstalk is eliminated timely and correctly according to the channel matrix, and the affection on the crosstalk eliminating capacity caused by the user logs on or logs off can be avoided.

摘要翻译： 提供了一种用于管理信道矩阵的方法。 该方法包括：获取用户是否登录或注销; 当用户登录时，将用户的频道信息的历史记录添加到频道矩阵; 在通道矩阵中记录用户的当前频道信息，并且在用户注销时从频道矩阵中删除用户的频道信息。 可以基于用户何时登录或关闭来及时更新信道矩阵。 因此，可以根据信道矩阵及时正确地消除信道串扰，并且可以避免由用户登录或注销引起的对串扰消除能力的影响。

公开(公告)号：US20110090978A1

公开(公告)日：2011-04-21

申请号：US12971389

申请日：2010-12-17

申请人： Liming Fang ,  Dong Wei ,  Zihuan Chen ,  Raphael Cendrillon

发明人： Liming Fang ,  Dong Wei ,  Zihuan Chen ,  Raphael Cendrillon

IPC分类号： H04L27/28

CPC分类号： H04B7/0623 ,  H04B3/487 ,  H04L5/0007 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0232 ,  H04L25/03343 ,  H04M11/062

摘要： In the field of communications technologies, a method, an apparatus, and a system for channel estimation are provided. The method for channel estimation includes the following steps. An error signal returned by a terminal is received, where the error signal is an error signal of at least two tones in a downlink frequency band. Channels of the at least two tones are obtained according to the error signal. The channels of the at least two tones are interpolated, and channels of remaining tones in the downlink frequency band are obtained. In the method, the apparatus, and the system for channel estimation, a convergence speed of the channel estimation is improved by reducing data of error signals returned by the terminal.

摘要翻译： 在通信技术领域中，提供了一种用于信道估计的方法，装置和系统。 信道估计方法包括以下步骤。 接收由终端返回的误差信号，其中误差信号是下行链路频带中至少两个音调的误差信号。 根据误差信号获得至少两个音调的信道。 插入至少两个音调的声道，并获得下行频带中剩余音调的声道。 在该方法中，通过减少由终端返回的误差信号的数据来改善信道估计的装置和信道估计系统的收敛速度。

公开(公告)号：US08582688B2

公开(公告)日：2013-11-12

申请号：US12971389

申请日：2010-12-17

申请人： Liming Fang ,  Dong Wei ,  Zihuan Chen ,  Raphael Cendrillon

发明人： Liming Fang ,  Dong Wei ,  Zihuan Chen ,  Raphael Cendrillon

IPC分类号： H04L27/28

CPC分类号： H04B7/0623 ,  H04B3/487 ,  H04L5/0007 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0232 ,  H04L25/03343 ,  H04M11/062

摘要： In the field of communications technologies, a method, an apparatus, and a system for channel estimation are provided. The method for channel estimation includes the following steps. An error signal returned by a terminal is received, where the error signal is an error signal of at least two tones in a downlink frequency band. Channels of the at least two tones are obtained according to the error signal. The channels of the at least two tones are interpolated, and channels of remaining tones in the downlink frequency band are obtained. In the method, the apparatus, and the system for channel estimation, a convergence speed of the channel estimation is improved by reducing data of error signals returned by the terminal.

摘要翻译： 在通信技术领域中，提供了一种用于信道估计的方法，装置和系统。 信道估计方法包括以下步骤。 接收由终端返回的误差信号，其中误差信号是下行链路频带中至少两个音调的误差信号。 根据误差信号获得至少两个音调的信道。 插入至少两个音调的声道，并获得下行频带中剩余音调的声道。 在该方法中，通过减少由终端返回的误差信号的数据来改善信道估计的装置和信道估计系统的收敛速度。

公开(公告)号：US20090147666A1

公开(公告)日：2009-06-11

申请号：US12369443

申请日：2009-02-11

申请人： Liming Fang ,  Ying Li ,  Zihuan Chen

发明人： Liming Fang ,  Ying Li ,  Zihuan Chen

IPC分类号： H04J1/12 ,  H04M9/08

CPC分类号： H04M11/062 ,  H04B3/32 ,  H04L5/14 ,  H04L25/022 ,  H04L25/0246 ,  H04L25/03159 ,  H04L2025/03414

摘要： A method and system for xDSL crosstalk cancellation is provided. The method includes dividing xDSL signals into a plurality of signal sets; and connecting signals from a same signal set to a same processing unit to be processed. A digital subscriber line access multiplexer (DSLAM) includes a line switching control module and at least one processing unit.

摘要翻译： 提供了一种用于xDSL串扰消除的方法和系统。 该方法包括将xDSL信号分成多个信号组; 并将来自相同信号组的信号连接到要处理的相同处理单元。 数字用户线路接入复用器（DSLAM）包括线路交换控制模块和至少一个处理单元。

公开(公告)号：US07907506B2

公开(公告)日：2011-03-15

申请号：US12369443

申请日：2009-02-11

申请人： Liming Fang ,  Ying Li ,  Zihuan Chen

发明人： Liming Fang ,  Ying Li ,  Zihuan Chen

IPC分类号： H04J1/12

CPC分类号： H04M11/062 ,  H04B3/32 ,  H04L5/14 ,  H04L25/022 ,  H04L25/0246 ,  H04L25/03159 ,  H04L2025/03414

摘要： A method and system for xDSL crosstalk cancellation is provided. The method includes dividing xDSL signals into a plurality of signal sets; and connecting signals from a same signal set to a same processing unit to be processed. A digital subscriber line access multiplexer (DSLAM) includes a line switching control module and at least one processing unit.

摘要翻译： 提供了一种用于xDSL串扰消除的方法和系统。 该方法包括将xDSL信号分成多个信号组; 并将来自相同信号组的信号连接到要处理的相同处理单元。 数字用户线路接入复用器（DSLAM）包括线路交换控制模块和至少一个处理单元。

公开(公告)号：US08218614B2

公开(公告)日：2012-07-10

申请号：US13248555

申请日：2011-09-29

申请人： Zihuan Chen ,  Lei Liu ,  Changsong Xie

发明人： Zihuan Chen ,  Lei Liu ,  Changsong Xie

IPC分类号： H04L27/01

CPC分类号： H04L25/03159 ,  H04L27/2626

摘要： Embodiments of the present invention disclose an electronic equalization and electronic depolarization method, a receiving end equipment, and a communication system. According to the embodiments of the present invention, parameters required by electronic equalization and electronic depolarization are calculated by detecting a Synchronization Sequence (SS) in a received signal, and then the electronic equalization and the electronic depolarization are performed on the received signal in a frequency domain by utilizing the parameters, so as to solve a problem of the electronic equalization and the electronic depolarization in a Polarization Division Multiplexing (PDM) Orthogonal Frequency Division Multiplexing (OFDM) system. Furthermore, the realization complexity of the electronic equalization and the electronic depolarization performed in the frequency domain is greatly reduced relative to the electronic equalization and the electronic depolarization performed in a time domain.

摘要翻译： 本发明的实施例公开了电子均衡和电子去极化方法，接收端设备和通信系统。 根据本发明的实施例，通过检测接收信号中的同步序列（SS）来计算电子均衡和电子去极化所需的参数，然后以频率对接收到的信号执行电子均衡和电子去极化 通过利用参数，解决了偏振分复用（PDM）正交频分复用（OFDM）系统中的电子均衡和电子去极化的问题。 此外，相对于在时域中执行的电子均衡和电子去极化，在频域中执行的电子均衡和电子去极化的实现复杂度大大降低。