-
公开(公告)号：US20210194539A1
公开(公告)日：2021-06-24
申请号：US16077850
申请日：2017-02-23
Applicant: Alcatel Lucent
Inventor： Rodrigo BASTOS MORAES , Paschalis TSIAFLAKIS , Mihaela JIVANESCU , Jochen MAES , Carl NUZMAN
Abstract: A vectoring controller is configured to determine first coefficient values for a vectoring matrix at a first tone based on a first number of iterations through an iterative update algorithm and a first channel matrix estimate at the first tone, and to determine second coefficient values for the vectoring matrix at a second neighboring tone based on a second number of iterations through the iterative update algorithm and a second channel matrix estimate at the second tone. The vectoring controller is configured to start with the first coefficient values as initial values for the respective second coefficient values in the iterative update algorithm. The second number of iterations is lower than or equal to the first number of iterations.
-
2.发明申请公开(公告)号：US20150063560A1
公开(公告)日：2015-03-05
申请号：US14013476
申请日：2013-08-29
Applicant: ALCATEL-LUCENT
Inventor： Carl NUZMAN , Thomas MERMANS , Dirk VANDERHAEGEN
IPC: H04B3/32
CPC classification number: H04B3/32 , H04M11/062
Abstract: At least one example embodiment discloses a method of initializing a plurality of communication paths in a system. The method includes obtaining a first matrix from a storage medium, the first matrix including at least one channel sub-matrix of the system associated with a subset of the plurality of communication paths, obtaining an indication of which communication paths are to become active and determining, after the obtaining the indication, new compensation coefficients based on the at least one channel sub-matrix and active compensation coefficients, the active compensation coefficients for compensating for crosstalk between the active communication paths prior to the number of active communication paths changing.
Abstract translation: 至少一个示例性实施例公开了一种在系统中初始化多个通信路径的方法。 该方法包括从存储介质获得第一矩阵，第一矩阵包括与多个通信路径的子集相关联的系统的至少一个信道子矩阵，获得哪个通信路径将变为活动的指示和确定 在获得指示之后，基于至少一个信道子矩阵和有效补偿系数的新的补偿系数，用于补偿在主动通信路径数量改变之前的主动通信路径之间的串扰的有效补偿系数。
-
公开(公告)号：US20190058502A1
公开(公告)日：2019-02-21
申请号：US15760461
申请日：2016-10-03
Applicant: Alcatel Lucent
Inventor： Paschalis TSIAFLAKIS , Carl NUZMAN , Jochen MAES
CPC classification number: H04B3/32 , H04B3/487 , H04J11/0033 , H04J11/0046
Abstract: A vectoring controller for configuring a vectoring processor that jointly processes DMT communication signals to be transmitted over, or received from, a plurality of N subscriber lines according to a vectoring matrix. In accordance with an embodiment, the vectoring controller is configured, for given ones of a plurality of tones, to enable the given tone for direct data communication over a first set of N−Mk targeted lines out of the plurality of N subscriber lines, and to disable the given tone for direct data communication over a second disjoint set of Mk supporting lines out of the plurality of N subscriber lines, Mk denoting a non-null positive integer. The vectoring controller is further configured to configure the vectoring matrix to use an available transmit or receive power at the given tone over the second set of Mk supporting lines for further enhancement of data signal gains at the given tone over the first set of N−Mk targeted lines.
-
4.发明申请公开(公告)号：US20180115640A1
公开(公告)日：2018-04-26
申请号：US15568926
申请日：2016-05-17
Applicant: Alcatel Lucent
Inventor： Issam WAHIBI , Carl NUZMAN , Benoit DROOGHAAG
CPC classification number: H04M3/085 , H04B3/32 , H04L12/2856 , H04L12/2869 , H04M3/2209 , H04M11/062
Abstract: Embodiments relate to a method for determining a corrective operation for a monitored Digital Subscriber Line in a first vectoring group, executed by a monitoring device, including receiving measurement data representative of successive received signal qualities of the monitored Digital Subscriber Line at successive times, and of successive transmission activities of other Digital Subscriber Lines, wherein the other Digital Subscriber Lines include at least one first Digital Subscriber Line in said first vectoring group and at least one second Digital Subscriber Line in a second vectoring group, determining a corrective operation for the monitored Digital Subscriber Line in function of changes in the received signal qualities between times wherein the transmission activity of at least one of the other Digital Subscriber Lines changes.
-
公开(公告)号：US20160156383A1
公开(公告)日：2016-06-02
申请号：US14904579
申请日：2014-07-31
Applicant: ALCATEL LUCENT
Inventor： Carl NUZMAN , Dirk VANDERHAEGEN
CPC classification number: H04B3/487 , H04L5/0048 , H04L25/022 , H04L25/0222 , H04L25/023 , H04L25/0242 , H04M3/306 , H04M3/34
Abstract: At least one crosstalk probing sequence out of a set of orthogonal crosstalk probing sequences is assigned to the at least one respective disturber line for modulation at the given carrier frequency of at least one respective sequence of crosstalk probing symbols, and error samples are successively measured by a receiver coupled to the victim line at the given carrier frequency while the at least one sequence of crosstalk probing symbols are being transmitted over the at least one respective disturber line are fed back for crosstalk estimation. The received error samples are next correlated with at least one unassigned crosstalk probing sequence out of the set of orthogonal crosstalk probing sequences for detection of a demapping error in the received error samples.
Abstract translation: 一组正交串扰探测序列中的至少一个串扰探测序列被分配给至少一个相应干扰线，用于在至少一个相应序列的串扰探测符号的给定载波频率处进行调制，并且误差采样由 在给定载波频率处耦合到所述受害线路的接收机，同时在所述至少一个相应干扰线路上传输所述至少一个串扰探测符号序列以反馈以用于串扰估计。 接收到的误差样本接下来与用于检测接收到的误差样本中的解映射误差的正交串扰探测序列组中的至少一个未分配串扰探测序列相关联。
-
Patent Agency Ranking
公开(公告)号：US20150326278A1
公开(公告)日：2015-11-12
申请号：US14654690
申请日：2014-01-07
Applicant: ALCATEL-LUCENT
Inventor： Jochen MAES , Michael TIMMERS , Dirk VANDERHAEGEN , Carl NUZMAN , Danny VAN BRUYSSEL
IPC: H04B3/32
CPC classification number: H04B3/32
Abstract: In accordance with an embodiment, the method includes detecting an update event whereupon a precoder needs to be updated, sending signal adjustment information to a receiver remotely coupled to a subscriber line out of the plurality of subscriber lines indicative of a signal compensation factor to be applied to a receive communication signal to compensate for a channel bias caused by the scheduled precoder update, and time-coordinating the precoder update with the enforcement of the signal compensation factor at the receiver.
Abstract translation: 根据实施例，所述方法包括检测更新事件，因此需要更新预编码器，将信号调整信息发送到远程耦合到多个用户线中的用户线的接收机，其指示要应用的信号补偿因子 到接收通信信号以补偿由调度的预编码器更新引起的信道偏移，并且在接收机处执行信号补偿因子来对预编码器更新进行时间协调。
-
公开(公告)号：US20220224375A1
公开(公告)日：2022-07-14
申请号：US17571928
申请日：2022-01-10
Applicant: Alcatel Lucent
Inventor： Jochen MAES , Michael TIMMERS , Dirk VANDERHAEGEN , Carl NUZMAN , Danny VAN BRUYSSEL
IPC: H04B3/32
Abstract: In accordance with an embodiment, the method includes detecting an update event whereupon a precoder needs to be updated, sending signal adjustment information to a receiver remotely coupled to a subscriber line out of the plurality of subscriber lines indicative of a signal compensation factor to be applied to a receive communication signal to compensate for a channel bias caused by the scheduled precoder update, and time-coordinating the precoder update with the enforcement of the signal compensation factor at the receiver.
-
公开(公告)号：US20220123764A1
公开(公告)日：2022-04-21
申请号：US17545271
申请日：2021-12-08
Applicant: Alcatel Lucent
Inventor： Carl NUZMAN
Abstract: In accordance with an embodiment, the method includes determining a second sequence of numbers of digits for encoding the respective integer coefficient values of the first sequence, the second sequence including, as first element, a first number of digits for encoding the first integer coefficient value of the first sequence, and as second and subsequent elements, constrained numbers of digits that are greater than or equal to respective minimum required numbers of digits for encoding the second and subsequent integer coefficient values of the first sequence. The constrained numbers of digits are such that any two successive elements of the second sequence do not differ from each other by more than a given threshold value. The method further includes encoding difference values between the successive elements of the second sequence; and encoding the integer coefficient values of the first sequence using the respective numbers of digits of the second sequence.
-
公开(公告)号：US20160191117A1
公开(公告)日：2016-06-30
申请号：US14910073
申请日：2014-08-26
Applicant: ALCATEL LUCENT
Inventor： Dirk VANDERHAEGEN , Carl NUZMAN , Danny VAN BRUYSSEL
Abstract: In accordance with an embodiment, the vectoring controller is configured to iterate through successive crosstalk acquisition cycles and, within respective ones of the crosstalk acquisition cycles, to configure sequences of crosstalk probing symbols for transmission over the respective communication lines, to receive sequences of error samples as successively measured by respective receivers coupled to the respective communication lines while the sequences of crosstalk probing symbols are being transmitted, and to determine crosstalk estimates between the respective communication lines based on the sequences of error samples. The vectoring controller is further configured to randomize the successive sequences of crosstalk probing symbols used during the successive crosstalk acquisition cycles, and to iteratively configure the vectoring processor based on the successive crosstalk estimates.
Abstract translation: 根据实施例，向量控制器被配置为遍历连续的串扰获取周期，并且在相应的串扰获取周期内，配置用于在各个通信线路上传输的串扰探测符号序列，以接收错误采样序列 在串扰探测符号序列正被传输的同时，由耦合到相应通信线路的各个接收器连续测量，并且基于错误采样序列来确定各个通信线路之间的串扰估计。 矢量控制器还被配置为随机化在连续串扰获取周期期间使用的串扰探测符号的连续序列，并且基于连续串扰估计来迭代地配置向量处理器。
-
公开(公告)号：US20210288661A1
公开(公告)日：2021-09-16
申请号：US16321540
申请日：2017-08-28
Applicant: Alcatel Lucent
Inventor： Carl NUZMAN
Abstract: In accordance with an embodiment, the method includes determining a second sequence of numbers of digits for encoding the respective integer coefficient values of the first sequence, the second sequence including, as first element, a first number of digits for encoding the first integer coefficient value of the first sequence, and as second and subsequent elements, constrained numbers of digits that are greater than or equal to respective minimum required numbers of digits for encoding the second and subsequent integer coefficient values of the first sequence. The constrained numbers of digits are such that any two successive elements of the second sequence do not differ from each other by more than a given threshold value. The method further includes encoding difference values between the successive elements of the second sequence; and encoding the integer coefficient values of the first sequence using the respective numbers of digits of the second sequence.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.017 seconds)
