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公开(公告)号:US20170279490A1
公开(公告)日:2017-09-28
申请号:US15528647
申请日:2015-12-08
Applicant: Alcatel Lucent
Inventor: Jochen MAES
CPC classification number: H04B3/32 , H04L25/03343 , H04L25/03821 , H04L25/03898 , H04L25/0391 , H04L2025/03426 , H04M3/34 , H04M11/062
Abstract: The method includes organizing a plurality of subscriber lines into a first group of subscriber lines and a second group of subscriber lines, the first group of subscriber lines at least including all the subscriber lines of the plurality of subscriber lines that do not support non-linear precoding operation and the second group of subscriber lines including the remaining subscriber lines of the plurality of subscriber lines; scaling first signals to be transmitted over respective ones of the first group of subscriber lines to confine respective intermediate transmit power levels at the input of a modulo unit and further to bypass or make ineffective the operation of the modulo unit; and processing the so scaled first signals and second signals to be transmitted over respective ones of the second group of subscriber lines through the first and second precoding stages.
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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。
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公开(公告)号:US20210006294A1
公开(公告)日:2021-01-07
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:US20190229517A1
公开(公告)日:2019-07-25
申请号:US16327920
申请日:2017-09-04
Applicant: ALCATEL LUCENT
Inventor: Jochen MAES , Werner COOMANS
Abstract: According to an embodiment a device for protecting an electrical circuit having at least two contacts connected by an interrupting module and a diplexer is disclosed. The diplexer splits a low frequency current and a communication signal, originating from power-line communication, such that the communication signal is conducted to a signal contact of the device and can be exchanged with another device.
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公开(公告)号:US20160043786A1
公开(公告)日:2016-02-11
申请号:US14782730
申请日:2014-04-28
Applicant: ALCATEL LUCENT
Inventor: Jochen MAES , Michael TIMMERS
IPC: H04B7/04
CPC classification number: H04B7/0456 , H04B3/32 , H04L25/03159 , H04L25/03343 , H04L2025/03636
Abstract: The present invention relates to a signal processing unit for pre-processing signals for crosstalk mitigation.In accordance with an embodiment of the invention, the signal processing unit comprises a modulo unit configured to determine individual modulo shifts (Δ) for respective transmit samples (U) to be transmitted over respective communication channels (H) based on first channel coupling information (L), and to add the modulo shifts to the respective transmit samples, and a linear precoder configured to jointly process the resulting transmit samples based on second channel coupling information (p′) that aim at effectively diagonalizing an overall channel matrix (HP′) resulting from the concatenation of the linear precoder with the communication channels.The present invention also relates to a method for pre-processing signals for crosstalk mitigation.
Abstract translation: 本发明涉及一种用于预处理用于串扰减轻的信号的信号处理单元。 根据本发明的实施例,信号处理单元包括模数单元,其被配置为基于第一信道耦合信息来确定要通过各个通信信道(H)发送的相应发射样本(U)的各个模移(&Dgr) (L),并且向相应的发射样本添加模移;以及线性预编码器,被配置为基于第二信道耦合信息(p')联合处理所得到的发射样本,所述第二信道耦合信息(p')旨在有效对角化整个信道矩阵(HP' )由线性预编码器与通信信道的级联产生。 本发明还涉及用于预处理用于串扰减轻的信号的方法。
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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.
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公开(公告)号:US20160248476A1
公开(公告)日:2016-08-25
申请号:US15026025
申请日:2014-10-14
Applicant: ALCATEL LUCENT
Inventor: Werner COOMANS , Jochen MAES
CPC classification number: H04B3/32 , H04B3/487 , H04L12/6418 , H04M11/062
Abstract: In accordance with an embodiment of the invention, the method includes detecting a leaving event such that a communication path established between two peer transceivers coupled to the particular subscriber line is to be orderly discontinued. The method further includes, during a pre-disconnection phase following the detection of the leaving event, switching the two peer transceivers into respective OFF power states during first symbol positions and into respective ON power states during second remaining symbol positions, characterizing crosstalk within the vectoring group during the first symbol positions while the second symbol positions are used for regular data communication if any, and definitively switching the two peer transceivers into the respective OFF power states after the crosstalk characterization completes.
Abstract translation: 根据本发明的实施例,该方法包括检测离开事件,使得在耦合到特定用户线路的两个对等收发器之间建立的通信路径将被有序地停止。 该方法还包括在检测到离开事件之后的预断开阶段期间,在第二符号位置期间将两个对等收发器切换到相应的OFF功率状态,并在第二剩余符号位置期间切换到相应的ON功率状态,表征矢量化内的串扰 在第一符号位置处组合,而第二符号位置用于常规数据通信,如果有的话,并且在串扰表征完成之后将两个对等收发器明确地切换到相应的OFF功率状态。
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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.
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公开(公告)号:US20170318150A1
公开(公告)日:2017-11-02
申请号:US15520498
申请日:2015-11-12
Applicant: Alcatel Lucent
Inventor: Paschalis TSIAFLAKIS , Jochen MAES , Dirk VANDERHAEGEN , Geert YSEBAERT , Wim VAN DAMME
CPC classification number: H04M3/18 , H04B3/32 , H04B3/487 , H04L1/0009 , H04L1/201 , H04L1/24 , H04L12/2878 , H04L25/0212 , H04L25/0224 , H04L25/03885 , H04L2025/03566 , H04M3/2209 , H04M11/062
Abstract: In accordance with an embodiment the method includes temporarily configuring the vector processor with a new set of vectoring coefficients during one or more selected symbol positions; restoring the current set of vectoring coefficients outside the one or more selected symbol positions; obtaining at least one error measure over respectively at least one line of the group of vectored lines during the one or more selected symbol positions; and determining a suitability indication for the new set of vectoring coefficients based on the obtained at least one error measure.
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公开(公告)号:US20150229354A1
公开(公告)日:2015-08-13
申请号:US14175398
申请日:2014-02-07
Applicant: Alcatel Lucent
Inventor: Carl J. NUZMAN , Jochen MAES
IPC: H04B3/32
Abstract: In one embodiment, the method includes determining, at an access node, a precoder matrix for precoding transmission from the access node to a plurality of downstream devices over a plurality of lines. The plurality of lines include high power lines and low power lines. The high power lines are in active communication and transmit more symbols per frame than the low power lines. The method further includes precoding a signal vector using the precoder matrix regardless of the symbols the signal vector is sending over the low power lines. Here, the determining determines the precoder matrix such that the precoding does not mitigate the cross-talk effect the high power lines have on the low power lines. The method also includes transmitting over the plurality of lines based on the precoded signal vector.
Abstract translation: 在一个实施例中,该方法包括在接入节点处确定预编码器矩阵,用于预编码从多个线路从接入节点到多个下游设备的传输。 多条线路包括高电力线路和低电力线路。 高功率线路处于主动通信中,并且每帧传送比低功率线路更多的符号。 该方法还包括使用预编码器矩阵预编码信号向量,而不管信号向量通过低功率线发送的符号。 这里,确定确定预编码器矩阵,使得预编码不会减轻高功率线对低功率线路的串扰效应。 该方法还包括基于预编码的信号向量在多条线上进行发送。
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