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公开(公告)号：DE60313158D1
公开(公告)日：2007-05-24
申请号：DE60313158
申请日：2003-05-19
Applicant: ST MICROELECTRONICS NV , ST MICROELECTRONICS BELGIUM NV
Inventor： PISONI FABIO , HUG ROLAND , BONAVENTURA MARCO
Abstract: An equalizer for a multi carrier transmission system, converts a transmitted multi carrier signal into sampled frequency domain signals, and suppresses time domain delay dispersion, on the sampled frequency domain signals. It exploits circulant decomposition of a Toeplitz matrix to enable the computationally heavy evaluation of a matrix multiplied by a vector, to be avoided. Increased precision arises from the frequency domain processing being equivalent to a longer time domain FIR filter than is normally practical. The amount of compensation for different carriers can be adjusted, which can lead to increased precision.
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公开(公告)号：AU2003229148A8
公开(公告)日：2003-12-02
申请号：AU2003229148
申请日：2003-05-19
Applicant: ST MICROELECTRONICS NV , ST MICROELECTRONICS BELGIUM NV
Inventor： PISONI FABIO , HUG ROLAND , BONAVENTURA MARCO
Abstract: An equalizer for a multi carrier transmission system, converts a transmitted multi carrier signal into sampled frequency domain signals, and suppresses time domain delay dispersion, on the sampled frequency domain signals. It exploits circulant decomposition of a Toeplitz matrix to enable the computationally heavy evaluation of a matrix multiplied by a vector, to be avoided. Increased precision arises from the frequency domain processing being equivalent to a longer time domain FIR filter than is normally practical. The amount of compensation for different carriers can be adjusted, which can lead to increased precision.
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公开(公告)号：WO03098833A2
公开(公告)日：2003-11-27
申请号：PCT/BE0300088
申请日：2003-05-19
Applicant: ST MICROELECTRONICS NV , PISONI FABIO , HUG ROLAND , BONAVENTURA MARCO
Inventor： PISONI FABIO , HUG ROLAND , BONAVENTURA MARCO
CPC classification number: H04L25/03159 , H04B3/23 , H04L27/2647
Abstract: There is disclosed a multi-carrier transceiver system for use in echo-cancellation. The transceiver system is arranged to generate from input data (1) a multi-carrier transmit signal (u) comprising a plurality of multi-carrier data blocks. The transceiver system also has a multi-carrier signal receiver responsive to an input multi-carrier receive signal (Yi) received from a remote signal transmitter. An echo canceller (2000) is arranged to generate from a pair of multi-carrier data blocks (u) a set of frequency-domain echo parameters (W) for use in generating an echo signal, (Y), to generate the echo signal using the frequency-domain echo parameters (W), and to input the echo signal (Y) to the multi-carrier signal receiver for use in generating an echo-cancelled receive signal (Ei) from the input receive signal (Yi) and the echo signal (Y).
Abstract translation: 公开了一种用于回波消除的多载波收发机系统。 收发器系统被布置成从输入数据（1）生成包括多个多载波数据块的多载波发射信号（u）。 收发机系统还具有响应于从远程信号发射机接收的输入多载波接收信号（Yi）的多载波信号接收机。 回波消除器（2000）被布置成从一对多载波数据块（u）生成用于产生回波信号（Y）的一组频域回波参数（W），以产生回波信号 使用频域回波参数（W），并将回波信号（Y）输入到多载波信号接收机，以用于从输入接收信号（Yi）产生回波消除接收信号（Ei）和 回波信号（Y）。
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Patent Agency Ranking
公开(公告)号：AU2003229149A8
公开(公告)日：2003-12-02
申请号：AU2003229149
申请日：2003-05-19
Applicant: ST MICROELECTRONICS NV
Inventor： HUG ROLAND , BONAVENTURA MARCO , PISONI FABIO
Abstract: There is disclosed a multi-carrier transceiver system for use in echo-cancellation. The transceiver system is arranged to generate from input data (1) a multi-carrier transmit signal (u) comprising a plurality of multi-carrier data blocks. The transceiver system also has a multi-carrier signal receiver responsive to an input multi-carrier receive signal (Yi) received from a remote signal transmitter. An echo canceller (2000) is arranged to generate from a pair of multi-carrier data blocks (u) a set of frequency-domain echo parameters (W) for use in generating an echo signal (Y ), to generate the echo signal using the frequency-domain echo parameters (W), and to input the echo signal (Y ) to the multi-carrier signal receiver for use in generating an echo-cancelled receive signal (Ei) from the input receive signal (Yi) and the echo signal (Y ).
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公开(公告)号：AU2003229148A1
公开(公告)日：2003-12-02
申请号：AU2003229148
申请日：2003-05-19
Applicant: ST MICROELECTRONICS NV
Inventor： PISONI FABIO , HUG ROLAND , BONAVENTURA MARCO
Abstract: An equalizer for a multi carrier transmission system, converts a transmitted multi carrier signal into sampled frequency domain signals, and suppresses time domain delay dispersion, on the sampled frequency domain signals. It exploits circulant decomposition of a Toeplitz matrix to enable the computationally heavy evaluation of a matrix multiplied by a vector, to be avoided. Increased precision arises from the frequency domain processing being equivalent to a longer time domain FIR filter than is normally practical. The amount of compensation for different carriers can be adjusted, which can lead to increased precision.
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公开(公告)号：DE60318042T2
公开(公告)日：2009-02-26
申请号：DE60318042
申请日：2003-05-19
Applicant: ST MICROELECTRONICS NV
Inventor： PISONI FABIO , HUG ROLAND , BONAVENTURA MARCO
Abstract: There is disclosed a multi-carrier transceiver system for use in echo-cancellation. The transceiver system is arranged to generate from input data (1) a multi-carrier transmit signal (u) comprising a plurality of multi-carrier data blocks. The transceiver system also has a multi-carrier signal receiver responsive to an input multi-carrier receive signal (Yi) received from a remote signal transmitter. An echo canceller (2000) is arranged to generate from a pair of multi-carrier data blocks (u) a set of frequency-domain echo parameters (W) for use in generating an echo signal (Y ), to generate the echo signal using the frequency-domain echo parameters (W), and to input the echo signal (Y ) to the multi-carrier signal receiver for use in generating an echo-cancelled receive signal (Ei) from the input receive signal (Yi) and the echo signal (Y ).
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公开(公告)号：DE60318042D1
公开(公告)日：2008-01-24
申请号：DE60318042
申请日：2003-05-19
Applicant: ST MICROELECTRONICS NV
Inventor： PISONI FABIO , HUG ROLAND , BONAVENTURA MARCO
Abstract: There is disclosed a multi-carrier transceiver system for use in echo-cancellation. The transceiver system is arranged to generate from input data (1) a multi-carrier transmit signal (u) comprising a plurality of multi-carrier data blocks. The transceiver system also has a multi-carrier signal receiver responsive to an input multi-carrier receive signal (Yi) received from a remote signal transmitter. An echo canceller (2000) is arranged to generate from a pair of multi-carrier data blocks (u) a set of frequency-domain echo parameters (W) for use in generating an echo signal (Y ), to generate the echo signal using the frequency-domain echo parameters (W), and to input the echo signal (Y ) to the multi-carrier signal receiver for use in generating an echo-cancelled receive signal (Ei) from the input receive signal (Yi) and the echo signal (Y ).
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公开(公告)号：AU2003229149A1
公开(公告)日：2003-12-02
申请号：AU2003229149
申请日：2003-05-19
Applicant: ST MICROELECTRONICS NV
Inventor： HUG ROLAND , BONAVENTURA MARCO , PISONI FABIO
Abstract: There is disclosed a multi-carrier transceiver system for use in echo-cancellation. The transceiver system is arranged to generate from input data (1) a multi-carrier transmit signal (u) comprising a plurality of multi-carrier data blocks. The transceiver system also has a multi-carrier signal receiver responsive to an input multi-carrier receive signal (Yi) received from a remote signal transmitter. An echo canceller (2000) is arranged to generate from a pair of multi-carrier data blocks (u) a set of frequency-domain echo parameters (W) for use in generating an echo signal (Y ), to generate the echo signal using the frequency-domain echo parameters (W), and to input the echo signal (Y ) to the multi-carrier signal receiver for use in generating an echo-cancelled receive signal (Ei) from the input receive signal (Yi) and the echo signal (Y ).
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