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1.发明申请METHOD AND APPARATUS FOR FAST AND ACCURATE ACQUISITION OF CROSSTALK COEFFICIENTS 有权用于快速和准确地获取CROSSTALK系数的方法和装置公开(公告)号：US20150195005A1
公开(公告)日：2015-07-09
申请号：US14409966
申请日：2013-07-18
Applicant: ALCATEL LUCENT
Inventor： Adriaan De Lind Van Wijngaarden , Mamoun Guenach , Carl Nuzman
CPC classification number: H04B3/32 , H04B3/487 , H04L27/2613 , H04L2025/03426 , H04M3/302 , H04M3/34
Abstract: In accordance with an embodiment, the method includes inserting a plurality of crosstalk probing signals within the wired multi-carrier communication system for probing the crosstalk from respective ones of the plurality of disturber lines into the victim line, carrying out crosstalk measurements over the victim line, and estimating the crosstalk coefficients from the crosstalk measurements. The method further includes organizing the plurality of disturber lines into subsets of disturber lines, and individually assigning disjoint groups of carriers to the respective subsets of disturber lines. The insertion of the plurality of crosstalk probing signals is confined within the respectively assigned groups of carriers. The subsets of disturber lines and/or the groups of carriers used for a second or subsequent iteration are tailored based on crosstalk characteristics observed for the respective disturber lines during a pervious iteration.
Abstract translation: 根据实施例，该方法包括在有线多载波通信系统内插入多个串扰探测信号，用于探测从多个干扰线中的相应干扰线到干线的串扰，在受害线上执行串扰测量 ，并从串扰测量估计串扰系数。 该方法还包括将多个干扰线组织成干扰线的子集，并且将不同的载波组分别分配给干扰线的相应子集。 多个串扰探测信号的插入被限制在分配的载波组内。 用于第二次或后续迭代的干扰线和/或载波组的子集基于在上一次迭代期间针对各个干扰线观察到的串扰特征来量化。
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公开(公告)号：US11558066B2
公开(公告)日：2023-01-17
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.
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公开(公告)号：US10826560B2
公开(公告)日：2020-11-03
申请号：US15760461
申请日：2016-10-03
Applicant: Alcatel Lucent
Inventor： Paschalis Tsiaflakis , Carl Nuzman , Jochen Maes
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.
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公开(公告)号：US09722664B2
公开(公告)日：2017-08-01
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.
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Patent Agency Ranking
公开(公告)号：US11424785B2
公开(公告)日：2022-08-23
申请号：US16999526
申请日：2020-08-21
Applicant: Alcatel Lucent
Inventor： Paschalis Tsiaflakis , Carl Nuzman , Jochen Maes
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.
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公开(公告)号：US09917617B2
公开(公告)日：2018-03-13
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.
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公开(公告)号：US09379770B2
公开(公告)日：2016-06-28
申请号：US14013476
申请日：2013-08-29
Applicant: Alcatel-Lucent
Inventor： Carl Nuzman , Thomas J. G. Mermans , Dirk Vanderhaegen
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。
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公开(公告)号：US11258479B2
公开(公告)日：2022-02-22
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
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.
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公开(公告)号：US11115080B2
公开(公告)日：2021-09-07
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.
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