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公开(公告)号：US10727899B2
公开(公告)日：2020-07-28
申请号：US16307265
申请日：2017-05-30
申请人： Alcatel Lucent
发明人： Dirk Vanderhaegen
摘要： The method includes inputting first groups of frequency samples to be transmitted over, respectively received from, first and second subsets of subscriber lines at respective first tones and following a first group selection order, alternated with mirrored second groups of frequency samples to be transmitted over, respectively received from, the second subset of subscriber lines at respective mirrored second tones of the first tones, and following a mirrored second group selection order of the first group selection order, to a vectoring processor for joint mitigation of first crosstalk present over the first and second subsets of subscriber lines at the respective first tones and second crosstalk present over the second subset of subscriber lines at the respective second tones. The first tones are common to the first and second transmit spectra. Mirroring is with respect to a folding frequency derived from a reference sampling frequency applicable to the first subset of subscriber lines.
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公开(公告)号：US10382093B2
公开(公告)日：2019-08-13
申请号：US15786516
申请日：2017-10-17
发明人： Haixiang Liang , Yixian Liu
IPC分类号： H04W56/00 , H04B3/32 , H04B3/487 , H04L12/28 , H04N21/43 , H04L27/26 , H04M3/34 , H04M11/06 , H04Q11/04 , H04L5/14
摘要： A method for implementing an upstream symbol alignment within a network component, the method comprising receiving an upstream sync signal via an initializing digital subscriber line (DSL) during a channel discovery phase from a customer premise equipment (CPE), determining a corrected upstream symbol alignment value based upon the upstream sync signal, and transmitting the corrected upstream symbol alignment value to the CPE, wherein the upstream symbol alignment value determines an upstream symbol alignment for one or more upstream transmissions, and wherein the corrected upstream symbol alignment value is determined before receiving a plurality of upstream data signals within the data symbol positions during the channel discovery phase.
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公开(公告)号：US20190207736A1
公开(公告)日：2019-07-04
申请号：US16070627
申请日：2017-01-18
发明人： Erez Ben-Tovim , Guy Reina , Rami Verbin
CPC分类号： H04L5/0087 , H04B3/32 , H04J3/0658 , H04J3/10 , H04L5/0091 , H04L5/14 , H04L5/1469 , H04M3/34
摘要： A method for dynamically modifying a frame structure in tranceiving of data between a network side entity and at least one node, the data is divided among a plurality of frames, the method comprising: providing an upstream management symbol offset position with respect to a frame reference point, said upstream management symbol offset position is associated with an up-stream management symbol that is configured to at least convey downstream acknowledgement data; providing an updated frame structure to said at least one node, including: information defining a transition point between downstream and upstream; and a reference point indicating when said updated frame structure shall take effect; receiving said updated frame structure by said at least one node; and employing said updated frame structure from said reference point, by said network side entity.
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公开(公告)号：US20190158142A1
公开(公告)日：2019-05-23
申请号：US16161367
申请日：2018-10-16
发明人： Pidder Kassel , Roland Zukunft
摘要： Methods and devices are provided for estimating crosstalk from a legacy line to a vectored line.
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公开(公告)号：US20180138943A1
公开(公告)日：2018-05-17
申请号：US15816410
申请日：2017-11-17
发明人： Antonio Salas Moreno , Ignacio Cardama Sierra , Agustin Badenes Corella , Antonio Jimenez de Parga Bernal
摘要： Methods and systems are provided for telephone line access with crosstalk stability. A transceiver device coupled to a telephone line, bundled with other telephone lines in a telephone cable, may determine when another transceiver device connected to the telephone cable is estimating signal to noise ratio on another telephone line in the telephone cable, and may control communications over on the telephone line, the controlling including forcing a transmission on the telephone line based on the estimation of signal to noise ratio by the other transceiver device. The transmission may be forced on the telephone line when there is no data to send on the telephone line at a time when the other transceiver device estimates the signal to noise ratio. The forced transmission may be generated by modulating sub-carriers using a pseudo-random sequence generated with an initial seed different from initial seeds used by other transceiver devices.
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公开(公告)号：US09948769B2
公开(公告)日：2018-04-17
申请号：US14669167
申请日：2015-03-26
申请人： Amin Emad , Carl J. Nuzman , Emina Soljanin
发明人： Amin Emad , Carl J. Nuzman , Emina Soljanin
CPC分类号： H04M3/34 , H04B3/32 , H04M3/2209 , H04M11/062
摘要： At least one example embodiment discloses a method of determining crosstalk for at least one first line in a communication system having a plurality of second lines. The method includes obtaining at least one pilot matrix representing a sequence of pilot signals and transmitting pilot signals across the plurality of second lines in accordance with the at least one pilot matrix. The method further includes obtaining measurement vectors for the at least one first line on a plurality of subcarriers, in response to the transmitted pilot signals, determining a weighted vector, the weighted vector being a weighted combination of the measurement vectors and determining a crosstalk coupling vector based on the determined weighted vector.
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公开(公告)号：US09912376B2
公开(公告)日：2018-03-06
申请号：US14798547
申请日：2015-07-14
申请人： Adtran, Inc.
摘要： Methods, systems, and apparatus for crosstalk avoidance in a telecommunications network are disclosed. In one aspect a telecommunications device includes a transceiver and a vectoring engine coupled to the transceiver. The vectoring engine can include a vectoring processor and vectoring control entity (e.g., apparatus). The vectoring engine is configured to instruct the transceiver to transmit, over a given line pair of a given vectoring group, initialization symbols at one or more configurable locations of a Time-Division Duplex (TDD) frame. For example, the vectoring engine can instruct the transceiver to transmit the initialization symbols beginning at a first symbol time following transmission, over other line pairs of the given vectoring group, of a Robust Management Channel (RMC) symbol.
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公开(公告)号：US20180054235A1
公开(公告)日：2018-02-22
申请号：US15786516
申请日：2017-10-17
发明人： Haixiang LIANG , Yixian LIU
CPC分类号： H04B3/32 , H04B3/487 , H04L5/1469 , H04L12/2898 , H04L27/2601 , H04L27/2655 , H04M3/34 , H04M11/062 , H04N21/4302 , H04Q11/0478 , H04W56/001
摘要： A method for implementing an upstream symbol alignment within a network component, the method comprising receiving an upstream sync signal via an initializing digital subscriber line (DSL) during a channel discovery phase from a customer premise equipment (CPE), determining a corrected upstream symbol alignment value based upon the upstream sync signal, and transmitting the corrected upstream symbol alignment value to the CPE, wherein the upstream symbol alignment value determines an upstream symbol alignment for one or more upstream transmissions, and wherein the corrected upstream symbol alignment value is determined before receiving a plurality of upstream data signals within the data symbol positions during the channel discovery phase.
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9.发明申请公开(公告)号：US20180048768A1
公开(公告)日：2018-02-15
申请号：US15549581
申请日：2016-02-08
发明人： Gary SPITTLE , Glenn DICKINS , David GUNAWAN , Guilin MA
CPC分类号： H04M3/568 , H04M3/002 , H04M3/34 , H04M3/569 , H04M9/082 , H04M2203/509 , H04R1/1083 , H04R27/00 , H04S7/302 , H04S7/303
摘要： In an audio conferencing environment, including multiple users participating by means of a series of associated audio input devices for the provision of audio input, and a series of audio output devices for the output of audio output streams to the multiple users, with the audio input and output devices being interconnected to a mixing control server for the control and mixing of the audio inputs from each audio input devices to present a series of audio streams to the audio output devices, a method of reducing the effects of cross talk pickup of at least a first audio conversation by multiple audio input devices, the method including the steps of: (a) monitoring the series of audio input devices for the presence of a duplicate audio conversation input from at least two input audio sources in an audio output stream; and (b) where a duplicate audio conversation input is detected, suppressing the presence of the duplicate audio conversation input in the audio output stream.
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公开(公告)号：US09825666B2
公开(公告)日：2017-11-21
申请号：US14607675
申请日：2015-01-28
发明人： Antonio Salas Moreno , Ignacio Cardama Sierra , Agustin Badenes Corella , Antonio Jimenez de Parga Bernal
CPC分类号： H04B3/32 , H04L12/2878 , H04L2012/2843 , H04M3/34 , H04M11/062
摘要： The present disclosure includes systems and techniques relating to wired communication channels, such as telephone lines in a bundled telephone cable. In some implementations, a system includes telephone lines bundled together, electronic equipment at a first location includes a first transceiver device for each of the telephone lines, where each first transceiver device at the first location is configured to coordinate transmissions over a respective telephone line coupled with the first transceiver device; and second transceiver devices coupled respectively with the telephone lines at second locations, such that each second transceiver device is respectively paired with a first transceiver device at the first location; each pair of the first and second transceiver devices is configured to force transmission on a telephone line connecting the pair when another pair of the first and second transceiver devices estimates a signal to noise ratio on the telephone line connecting the other pair.
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