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公开(公告)号：US20110200140A1
公开(公告)日：2011-08-18
申请号：US13091651
申请日：2011-04-21
Applicant: Patrick Duvaut , Amitkumar Mahadevan , Massimo Sorbara , Ehud Langberg
Inventor： Patrick Duvaut , Amitkumar Mahadevan , Massimo Sorbara , Ehud Langberg
IPC: H04L25/49
CPC classification number: H04B3/32 , H04L1/0042
Abstract: One embodiment is a method for precoding data for transmission in a discrete multi-tone (DMT) system to cancel self-induced far end crosstalk (self-FEXT). The method comprises learning, by the system, characteristics associated with a plurality of N users within a digital subscriber line (xDSL) system to determine an initial off-diagonal multiple input multiple output (MIMO) precoder (ODMP) for a given tone frequency and converging towards an ODMP from the initial ODMP to cancel self-FEXT for the plurality of N users, wherein the ODMP is represented as a zero diagonal matrix containing only off-diagonal terms.
Abstract translation: 一个实施例是用于在离散多音（DMT）系统中预编码用于传输的数据以消除自感应远端串扰（self-FEXT）的方法。 该方法包括通过系统学习与数字用户线（xDSL）系统内的多个N个用户相关联的特征，以确定给定音频的初始非对角多输入多输出（MIMO）预编码器（ODMP），以及 从初始ODMP收敛到ODMP以取消多个N个用户的自身FEXT，其中ODMP被表示为仅包含非对角项的零对角矩阵。
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公开(公告)号：US07957477B2
公开(公告)日：2011-06-07
申请号：US11845040
申请日：2007-08-25
Applicant: Patrick Duvaut , Amitkumar Mahadevan , Massimo Sorbara , Ehud Langberg
Inventor： Patrick Duvaut , Amitkumar Mahadevan , Massimo Sorbara , Ehud Langberg
IPC: H04L27/28
CPC classification number: H04B3/32 , H04L1/0042
Abstract: Systems and methods for off-diagonal MIMO precoders are described. At least one embodiment includes a method for precoding data for transmission in a discrete multi-tone (DMT) xDSL system to cancel self-induced far end crosstalk (self-FEXT) comprising: learning characteristics associated with a plurality of N users within the xDSL system to determine an initial off-diagonal multiple input multiple output (MIMO) precoder (ODMP) for a given tone frequency; and converging towards an optimum ODMP from the initial ODMP in order to cancel downstream self-FEXT for the plurality of N users, wherein the ODMP is represented as a zero diagonal matrix with only off-diagonal terms, and wherein the converging towards the optimum ODMP comprises: maximizing the channel capacity for the plurality of N users for the given tone frequency; and minimizing an increase in transmit power of the xDSL system relative to an original transmit power where a precoder is not active.
Abstract translation: 描述了非对角MIMO预编码器的系统和方法。 至少一个实施例包括用于预编码用于在离散多音（DMT）xDSL系统中传输的数据以消除自感应远端串扰（self-FEXT）的方法，包括：与xDSL内的多个N个用户相关联的学习特征 系统确定用于给定音频的初始非对角多输入多输出（MIMO）预编码器（ODMP）; 并从最初的ODMP收敛到最佳的ODMP，以消除多个N个用户的下游自身FEXT，其中ODMP被表示为只有非对角项的零对角矩阵，并且其中朝向最佳ODMP 包括：使给定音调频率的多个N个用户的信道容量最大化; 并且最小化xDSL系统相对于预编码器不活动的原始发射功率的发射功率的增加。
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公开(公告)号：US20100281349A1
公开(公告)日：2010-11-04
申请号：US12728758
申请日：2010-03-22
Applicant: Julien D. Pons , Laurent Francis Alloin , Massimo Sorbara , Vinod Venkatesan
Inventor： Julien D. Pons , Laurent Francis Alloin , Massimo Sorbara , Vinod Venkatesan
CPC classification number: H03M13/251 , H03M13/09 , H03M13/1505 , H03M13/256 , H03M13/353 , H03M13/616 , H04L1/0057 , H04L1/0073 , H04L1/1607
Abstract: A method implemented in a digital subscriber line (DSL) system is described for minimizing a misdetection probability at a far-end coded message receiver during transmission of a coded message. The method comprises jointly determining, at the far-end coded message receiver, a P matrix and a modulation scheme. The method further comprises encoding a message into a coded message with a systematic linear block code, the systematic linear block code having a generator matrix [I P], where I represents a linear block code component identity matrix and P represents the determined P matrix. The method also comprises modulating the encoded message to one or more tones forming a discrete multi-tone (DMT) symbol according to the determined modulation scheme.
Abstract translation: 描述了在数字用户线（DSL）系统中实现的方法，用于在编码消息的传输期间最小化远端编码消息接收机处的错误检测概率。 该方法包括在远端编码消息接收机处共同确定P矩阵和调制方案。 该方法还包括将消息编码成具有系统线性块码的编码消息，该系统线性块码具有生成矩阵[I P]，其中I表示线性块码分量单位矩阵，P表示所确定的P矩阵。 该方法还包括根据确定的调制方案将编码消息调制成形成离散多音调（DMT）符号的一个或多个音调。
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公开(公告)号：US20100185791A1
公开(公告)日：2010-07-22
申请号：US12645753
申请日：2009-12-23
Applicant: Julien D. Pons , Massimo Sorbara , Laurent Francis Alloin , Ravindra M. Lambi
Inventor： Julien D. Pons , Massimo Sorbara , Laurent Francis Alloin , Ravindra M. Lambi
IPC: G06F3/00
CPC classification number: H04M11/062 , H04L1/0045 , H04L1/009 , H04L1/18
Abstract: Included are embodiments for retransmission in a digital subscriber line environment. At least one embodiment of a method includes framing data into transport frames, each transport frame carrying payload data that is viewed differently according to the computing layer in which it is transported; transporting the transport frames over a first computing layer, the payload data of each transport frame corresponding to an integer number Q of elementary cells of the first computing layer, an integer number of header bytes containing information specific to the transport frame, and an integer number of padding bytes; and transporting the transport frames over a second computing layer, the payload data content of each transport frame corresponding to payload data of an integer number M of elementary cells of the second computing layer.
Abstract translation: 包括在数字用户线环境中进行重传的实施例。 方法的至少一个实施例包括将数据成帧到传输帧中，每个传输帧承载根据其被传送的计算层不同地观看的有效载荷数据; 在第一计算层上传输传输帧，每个传输帧的有效载荷数据对应于第一计算层的基本单元的整数Q，包含传输帧特有的信息的整数个头字节，以及整数 的填充字节; 以及通过第二计算层传送所述传输帧，每个传输帧的有效载荷数据内容对应于所述第二计算层的基本单元的整数M的有效载荷数据。
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公开(公告)号：US07660260B2
公开(公告)日：2010-02-09
申请号：US11712125
申请日：2007-02-28
Applicant: Patrick Duvaut , Amitkumar Mahadevan , Massimo Sorbara
Inventor： Patrick Duvaut , Amitkumar Mahadevan , Massimo Sorbara
CPC classification number: H04M11/062
Abstract: There is provided a method of shaping PSD (Power Spectrum Density) of an FTTN (Fiber-To-The-Node) downstream signal from a disturber source to achieve spectral compatibility at an FTTN downstream victim with a downstream PSD from a reference source. The method includes receiving the downstream PSD from the reference source. The method further includes receiving an unshaped downstream PSD from the disturber source. The method further includes shaping the PSD of the FTTN downstream signal to have a substantially equivalent FEXT (Far-End Cross-Talk) into the FTTN downstream victim as the downstream PSD from the reference source.
Abstract translation: 提供了一种从干扰源获得FTTN（光纤到节点）下行信号的PSD（功率谱密度）的方法，以在具有来自参考源的下游PSD的FTTN下游受害者处获得频谱兼容性。 该方法包括从参考源接收下游PSD。 该方法还包括从干扰源接收未形成的下游PSD。 该方法还包括对FTTN下行信号的PSD进行整形，以使作为来自参考源的下游PSD的FTTN下游受害者具有基本相等的FEXT（远端交叉对话）。
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Patent Agency Ranking
公开(公告)号：US5901135A
公开(公告)日：1999-05-04
申请号：US808703
申请日：1997-02-28
Applicant: Hong Yang Chung , Massimo Sorbara
Inventor： Hong Yang Chung , Massimo Sorbara
CPC classification number: H04L27/3433 , H04L27/34
Abstract: Data to be transmitted is converted into symbols using a plurality of data-to-symbol conversion processes. The symbols from these processes are then time-division multiplexed. Advantageously, at least one of these conversion processes incorporate coding in a manner which provides the same degree of error protection for each process. In the disclosed embodiments, the data originates from two independent sources and the data from each source is converted into symbols using a different data-to-symbol conversion process.
Abstract translation: 要发送的数据使用多个数据到符号转换处理转换成符号。 然后来自这些处理的符号被时分复用。 有利地，这些转换过程中的至少一个以对每个处理提供相同程度的错误保护的方式并入编码。 在所公开的实施例中，数据源自两个独立的源，并且使用不同的数据到符号转换处理将来自每个源的数据转换成符号。
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7.发明授权Systems and methods for transporting time-of-day information in a communication system 有权在通信系统中传送时间信息的系统和方法公开(公告)号：US08775849B2
公开(公告)日：2014-07-08
申请号：US13103072
申请日：2011-05-08
Applicant: Massimo Sorbara , Sigurd Schelstraete , Robert A. Day , Peter D. Keller
Inventor： Massimo Sorbara , Sigurd Schelstraete , Robert A. Day , Peter D. Keller
CPC classification number: H04J3/0685 , H04J3/0638 , H04J3/0667 , H04L27/2656 , H04L27/2673 , H04M11/062
Abstract: Systems and methods for synchronizing a clock at a customer premises equipment (CPE) location with a master clock at a central office (CO) location are described. One embodiment is a method that comprises receiving, by a time-of-day transmission convergence (ToD-TC) module in the CPE, ToD information relating to the master clock. Based on the received information, time stamps are applied to reference data samples. The method further comprises transporting the ToD information by transporting the reference data samples with applied time stamps and utilizing time stamps of the reference data samples to synchronize the CPE clock with the master clock.
Abstract translation: 描述了用于在客户驻地设备（CPE）位置与中心局（CO）位置处的主时钟同步时钟的系统和方法。 一个实施例是一种方法，其包括通过CPE中的日期传输收敛（ToD-TC）模块接收与主时钟相关的ToD信息。 基于接收到的信息，将时间戳应用于参考数据样本。 该方法还包括通过传送具有应用时间戳的参考数据样本并利用参考数据样本的时间戳来传送ToD信息，以使CPE时钟与主时钟同步。
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公开(公告)号：US08463955B2
公开(公告)日：2013-06-11
申请号：US12645753
申请日：2009-12-23
Applicant: Julien D. Pons , Massimo Sorbara , Laurent Francis Alloin , Ravindra M. Lambi
Inventor： Julien D. Pons , Massimo Sorbara , Laurent Francis Alloin , Ravindra M. Lambi
IPC: G06F3/00
CPC classification number: H04M11/062 , H04L1/0045 , H04L1/009 , H04L1/18
Abstract: Included are embodiments for retransmission in a digital subscriber line environment. At least one embodiment of a method includes framing data into transport frames, each transport frame carrying payload data that is viewed differently according to the computing layer in which it is transported; transporting the transport frames over a first computing layer, the payload data of each transport frame corresponding to an integer number Q of elementary cells of the first computing layer, an integer number of header bytes containing information specific to the transport frame, and an integer number of padding bytes; and transporting the transport frames over a second computing layer, the payload data content of each transport frame corresponding to payload data of an integer number M of elementary cells of the second computing layer.
Abstract translation: 包括在数字用户线环境中进行重传的实施例。 方法的至少一个实施例包括将数据成帧到传输帧中，每个传输帧承载根据其被传送的计算层不同地观看的有效载荷数据; 在第一计算层上传输传输帧，每个传输帧的有效载荷数据对应于第一计算层的基本单元的整数Q，包含传输帧特有的信息的整数个头字节，以及整数 的填充字节; 以及通过第二计算层传送所述传输帧，每个传输帧的有效载荷数据内容对应于所述第二计算层的基本单元的整数M的有效载荷数据。
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公开(公告)号：US08413000B2
公开(公告)日：2013-04-02
申请号：US12620832
申请日：2009-11-18
Applicant: Massimo Sorbara , Ravindra M. Lambi , Julien D. Pons
Inventor： Massimo Sorbara , Ravindra M. Lambi , Julien D. Pons
IPC: G06F11/00
CPC classification number: H04L1/1874
Abstract: Embodiments disclosed herein are configured for retransmission above the gamma (γ) interface. At least one embodiment of a method includes receiving data from an Ethernet layer, the data being identified as eligible for retransmission or not eligible for retransmission; in response to a determination that the data is eligible for retransmission, storing a copy of at least a portion of the data in a retransmission queue; and transmitting the data across a gamma (γ) interface to a packet transfer mode transmission convergence layer.
Abstract translation: 本文公开的实施例被配置为在γ（γ）界面上方重传。 方法的至少一个实施例包括从以太网层接收数据，所述数据被识别为符合重传的资格或不符合重传的资格; 响应于确定所述数据有资格进行重传，将至少一部分数据的副本存储在重传队列中; 以及将数据跨越伽马（γ）接口发送到分组传输模式传输会聚层。
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公开(公告)号：US20100088569A1
公开(公告)日：2010-04-08
申请号：US12573742
申请日：2009-10-05
Applicant: Massimo Sorbara , Julien D. Pons , Ravindra M. Lambi
Inventor： Massimo Sorbara , Julien D. Pons , Ravindra M. Lambi
CPC classification number: H04L1/08 , H03M13/15 , H03M13/1515 , H03M13/6306 , H04L1/007 , H04L1/1887 , H04L27/2601
Abstract: Embodiments disclosed herein include systems and methods of packet retransmission. More specifically, at least one nonlimiting example of a method includes receiving data from above a γ (gamma) interface, the data being identified as protected or not protected data; and storing the protected fragment in a retransmission queue included in a transport protocol specific transmission convergence layer.
Abstract translation: 本文公开的实施例包括分组重传的系统和方法。 更具体地，方法的至少一个非限制性示例包括从γ（γ）接口上方接收数据，该数据被识别为受保护或未被保护的数据; 以及将保护的片段存储在包括在传输协议专用传输会聚层中的重传队列中。
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