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公开(公告)号：US20200029228A1
公开(公告)日：2020-01-23
申请号：US16588578
申请日：2019-09-30
发明人： Wangsheng Zhao , Hui Guo , Jie Lv
摘要： Embodiments of the present invention provide a channel selection method and an apparatus. The WiFi network includes a first access point, a second access point, and a third access point. The first access point supports connections on at least two different frequency bands, and the at least two different frequency bands include a first frequency band and a second frequency band. The method includes: directly cascading, by the first access point by using the first frequency band, to the second access point by using the second access point as a higher-level access point; and receiving, by the first access point, a cascading access request of the third access point, and allowing the third access point to directly cascade as a lower-level access point to the first access point by using the second frequency band.
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公开(公告)号：US10075260B2
公开(公告)日：2018-09-11
申请号：US14857616
申请日：2015-09-17
发明人： Jie Lv , Xiang Wang
CPC分类号： H04L1/0001 , H04B3/06 , H04B3/32 , H04L25/03006 , H04M11/062 , H04W52/346
摘要： The present invention discloses a power control method, apparatus, and system. A vectoring control entity acquires a power control factor Diik of an ith transmit end on a kth subcarrier, where the ith transmit end is one transceiver of M transceivers located at a central office end, 1≤k≤K, and K indicates a quantity of subcarriers; and sends the power control factor Diik to the ith transmit end, so that if it is determined, according to the power control factor Diik, that the power control factor Diik is less than a power gain factor gik, of a current transmit signal of the ith transmit end, on the kth subcarrier, the ith transmit end modifies the power gain factor gik of the current transmit signal, so that a modified power gain factor g′ik is less than or equal to the power control factor Diik.
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公开(公告)号：US20180227013A1
公开(公告)日：2018-08-09
申请号：US15945484
申请日：2018-04-04
发明人： Jie Lv , Xiang Wang
CPC分类号： H04B3/32 , H04B3/487 , H04L12/64 , H04L12/6418 , H04M11/062
摘要： A deactivation method and system in a crosstalk scenario which relates to the field of mobile communications technologies. The method includes M transceivers of a central office end sending data using M lines, and when the M transceivers are in a data transmission showtime state, and when a trigger state change event is detected, switching, by N transceivers, to a deactivation execution state, to deactivate N lines among the M lines, acquiring an update coefficient used to update a crosstalk cancellation coefficient between active lines, updating the crosstalk cancellation coefficient between the active lines using the update coefficient, and controlling the transceivers in the deactivation execution state to enter a silent or an idle state.
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公开(公告)号：US09813112B2
公开(公告)日：2017-11-07
申请号：US14928567
申请日：2015-10-30
发明人： Jie Lv , Xiang Wang
CPC分类号： H04B3/487 , H04B3/32 , H04L5/0042 , H04L5/0085 , H04L27/2601
摘要： Embodiments of the present invention provide a power control method, device, and system, and relate to the field of communications technologies. The method is applied to a vectoring system, where the vectoring system includes multiple lines, each line includes multiple subcarriers, and for each subcarrier, a crosstalk channel is formed between the multiple lines, and the method includes: obtaining a closed subcarrier set of the multiple lines according to line crosstalk channel information corresponding to each subcarrier of the multiple subcarriers, where the closed subcarrier set includes a subcarrier set required to be closed on the multiple lines; and sending the closed subcarrier set of the multiple lines to a transceiver, and closing, by the transceiver, a transmit signal on a subcarrier required to be closed on each line.
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公开(公告)号：US20170155541A1
公开(公告)日：2017-06-01
申请号：US15429491
申请日：2017-02-10
发明人： Xiaolong Zhang , Jie Lv
CPC分类号： H04L41/0631 , G01R23/16 , G01R31/08 , G01R31/088 , H04B3/48 , H04B10/079 , H04B10/25751 , H04L12/2801 , H04L41/0677
摘要： A failure analysis method and device, where the method includes obtaining a frequency domain response amplitude of a channel from a hybrid fiber-coaxial (HFC) network, performing linear fitting on an effective portion of the frequency domain response amplitude to determine a channel slope value, and performing channel failure analysis according to the channel slope value. Failure analysis is performed according to the obtained channel slope value, and the channel slope value is a new failure analysis parameter. In this way, means of channel failure analysis increase, and channel failure analysis is more accurate.
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6.发明授权Method, apparatus and system for compatibility with VDSL2 legacy customer premises equipment 有权与VDSL2传统客户端设备兼容的方法，设备和系统公开(公告)号：US09225826B2
公开(公告)日：2015-12-29
申请号：US14623386
申请日：2015-02-16
CPC分类号： H04M3/34 , H04B3/32 , H04B3/487 , H04M3/007 , H04M11/062
摘要： Embodiments of the present invention provide a method for compatibility with a VDSL2 legacy customer premises equipment, including: selecting tones in preset locations from tones of a legacy line as training tones; controlling the training tones not to transmit data and modulating a pilot sequence on the training tones; calculating and feeding back clipped errors on a Vectored line; and calculating coefficients, for the training tones, of crosstalk of the legacy line in the Vectored line according to the pilot sequence and the clipped errors. The embodiments of the present invention further provide an apparatus and a system for compatibility with a VDSL2 legacy customer premises equipment.
摘要翻译： 本发明的实施例提供了一种用于与VDSL2传统客户驻地设备的兼容性的方法，包括：从传统线路的音调中选择预设位置的音调作为训练音; 控制训练音调不发送数据和调制训练音上的导频序列; 计算并反馈在向导线上的限幅误差; 以及根据导频序列和限幅误差，计算导频线中传统线路的串扰的训练音调的系数。 本发明的实施例还提供了一种用于与VDSL2传统客户驻地设备兼容的装置和系统。
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公开(公告)号：US10122410B2
公开(公告)日：2018-11-06
申请号：US15471955
申请日：2017-03-28
发明人： Xiaolong Zhang , Jie Lv
摘要： A channel transmission characteristic obtaining method and apparatus, where the method includes obtaining transmission characteristic curves of at least two channels in a cable modem in a channel scanning manner, where the at least two channels form one contiguous frequency band, and frequencies corresponding to the transmission characteristic curves of the at least two channels include frequency values on a same order of magnitude, and amplitude values on a same order of magnitude, translating the transmission characteristic curves of the channels in an amplitude direction, to make amplitudes corresponding to same frequencies on all transmission characteristic curves overlapped in order to form one continuous curve, and setting the continuous curve as a transmission characteristic curve of the contiguous frequency band.
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公开(公告)号：US09712208B2
公开(公告)日：2017-07-18
申请号：US14611553
申请日：2015-02-02
发明人： Jianping Tu , Jie Lv , Xiang Wang
CPC分类号： H04B3/32 , H04L25/0224
摘要： The present invention provides a method and an apparatus for training a Vector coefficient of a vectored digital subscriber line, where the method includes: after a handshake phase is executed for a joining line, calculating, by using a pilot estimation method, an initial precoding coefficient and an initial cancellation coefficient that represent interference from the joining line to a normal working line; and after a channel discovery phase is executed for the joining line, compensating the initial precoding coefficient and the initial cancellation coefficient by using a compensation factor, to obtain a precoding coefficient and a cancellation coefficient that represent the interference from the joining line to the normal working line, wherein the compensation factor is obtained according to a signal power change or a signal phase change of the joining line. The present invention improves efficiency of Vector coefficient training.
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9.发明授权公开(公告)号：US08831114B2
公开(公告)日：2014-09-09
申请号：US13972181
申请日：2013-08-21
发明人： Jie Lv
CPC分类号： H04B3/32 , H04B3/28 , H04L1/06 , H04L5/20 , H04L25/0272 , H04L25/0276 , H04L25/085
摘要： Embodiments of the present invention relate to the field of communication technologies, and in particular, to a method, an apparatus, and a system for processing signals based on a twisted pair. The method for processing signals based on a twisted pair includes: determining a signal processing manner; performing, according to the signal processing manner, digital processing on signals of the extended channels that are to be sent to convert the signals of the extended channels into common mode signals of each twisted pair; and sending the converted common mode signals of the each twisted pair to corresponding twisted pairs for transmission.
摘要翻译： 本发明的实施例涉及通信技术领域，特别涉及一种用于处理基于双绞线的信号的方法，装置和系统。 基于双绞线处理信号的方法包括：确定信号处理方式; 根据信号处理方式对要发送的扩展信道的信号进行数字处理，以将扩展信道的信号转换成每个双绞线的共模信号; 并将每个双绞线的转换的共模信号发送到相应的双绞线用于传输。
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公开(公告)号：US10516438B2
公开(公告)日：2019-12-24
申请号：US15945484
申请日：2018-04-04
发明人： Jie Lv , Xiang Wang
摘要： A deactivation method and system in a crosstalk scenario which relates to the field of mobile communications technologies. The method includes M transceivers of a central office end sending data using M lines, and when the M transceivers are in a data transmission showtime state, and when a trigger state change event is detected, switching, by N transceivers, to a deactivation execution state, to deactivate N lines among the M lines, acquiring an update coefficient used to update a crosstalk cancellation coefficient between active lines, updating the crosstalk cancellation coefficient between the active lines using the update coefficient, and controlling the transceivers in the deactivation execution state to enter a silent or an idle state.
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