公开(公告)号：US08457219B2

公开(公告)日：2013-06-04

申请号：US11615535

申请日：2006-12-22

申请人： Julien Pons ,  Amitkumar Mahadevan ,  Patrick Duvaut

发明人： Julien Pons ,  Amitkumar Mahadevan ,  Patrick Duvaut

IPC分类号： H04K1/10

CPC分类号： H03M13/2732 ,  H03M13/1102 ,  H03M13/2957 ,  H03M13/31 ,  H03M13/6362 ,  H04L1/0066 ,  H04L1/0068 ,  H04L1/0071 ,  H04L27/2601

摘要： Included are embodiments for self protection. At least one embodiment includes Self-protection Unit for protecting a signal that includes a first receiving component configured to receive data, the received data being received as at least one frame and a subframing component configured to subframe at least a portion of the received data, wherein subframing includes converting the at least one into a plurality of subframes. Some embodiments include a subframe interleaver component configured to interleave at least a portion of the subframes.

摘要翻译： 包括自我保护的实施例。 至少一个实施例包括用于保护包括被配置为接收数据的第一接收组件的信号的自保护单元，被接收为至少一个帧的接收数据和被配置为子帧接收到的数据的至少一部分的子帧组件， 其中子帧包括将所述至少一个转换成多个子帧。 一些实施例包括被配置为交织子帧的至少一部分的子帧交织器组件。

公开(公告)号：US07555052B2

公开(公告)日：2009-06-30

申请号：US11248224

申请日：2005-10-13

申请人： Julien Pons ,  Patrick Duvaut

发明人： Julien Pons ,  Patrick Duvaut

IPC分类号： H04L5/12

CPC分类号： H04L27/3433 ,  H03M13/256 ,  H03M13/258 ,  H04L1/0041 ,  H04L1/005 ,  H04L1/006 ,  H04L1/0066 ,  H04L27/18 ,  H04L27/2601 ,  H04L27/2602 ,  H04L27/3405 ,  H04L27/3416 ,  H04M11/062

摘要： Method and System for evaluating a turbo-coding scheme suitable for VDSL2 systems. The scheme is a Turbo-Trellis Coded Modulation TTCM that makes use of a Parallel Concatenated Convolutional Code (PCCC) including an inner Latin square/rectangular matrix of Random sequence pattern Interleaver (LRI) of approximately 2044 bits. In the presence of the outer Reed Solomon Code but without an outer interleaver (fast mode), the method and system provides 7.1 dB of average net coding gain, i.e., 2.6 dB of coding gain improvement relative to the standard 16 states 4-dimensional (4-D) trellis code used in current ADSL2 systems. The substantial coding gain achieved through the method and system, leads to an increase in the VDSL2 rate by 38% at 6 kft against local exchange carriers, such as ILEC (SBC) conditions with approximately 1.5 ms of latency. By encoding only two bits per tone (i.e., 1 bit per dimension), the turbo code implementation complexity is kept reasonable. Finally, the coded modulation scheme supports very small constellations, allowing transmitting spectral efficiency as low as 0.5 bit/sec/Hz over Binary Phase Shift Keying (BPSK) constellations at a signal-to-noise-ration (SNR) very close to the Shannon bound.

摘要翻译： 用于评估适用于VDSL2系统的turbo编码方案的方法和系统。 该方案是Turbo-Trellis编码调制TTCM，它利用包含大约2044位的随机序列模式交织器（LRI）的内拉丁方块/矩形矩阵的并行级联卷积码（PCCC）。 在外部里德所罗门码的存在下，没有外部交织器（快速模式），该方法和系统提供7.1dB的平均净编码增益，即相对于标准16状态4维的2.6dB的编码增益改善（ 4-D）当前ADSL2系统中使用的格状码。 通过该方法和系统实现的实质编码增益导致6kft处的VDSL2速率相对于本地交换载波（例如具有大约1.5ms延迟的ILEC（SBC））条件增加38％。 通过仅对每个音调编码两个比特（即，每个维度1比特），turbo码实现复杂度保持合理。 最后，编码调制方案支持非常小的星座，允许在非常接近香农的信噪比（SNR）的二进制相移键控（BPSK）星座上传输低至0.5比特/秒/ Hz的频谱效率 界。

公开(公告)号：US07457368B2

公开(公告)日：2008-11-25

申请号：US10860286

申请日：2004-06-04

申请人： Patrick Duvaut ,  Ehud Langberg ,  Julien Pons ,  William Scholtz

发明人： Patrick Duvaut ,  Ehud Langberg ,  Julien Pons ,  William Scholtz

IPC分类号： H04L5/12

CPC分类号： H04L1/006 ,  H03M13/255 ,  H03M13/256 ,  H03M13/635 ,  H04L1/0041 ,  H04L1/0066 ,  H04L1/007

摘要： Disclosed herein are various techniques for multilevel channel coding. For a given binary word comprising a plurality of bits, the least-significant bit may be encoded by a boosted coding technique, such as turbo channel coding or low density parity check (LDPC) channel coding. A subset of the remaining bits of the binary word may be encoded using trellis coded modulation (TCM) coding. The results of the boosted channel coding and the TCM coding may be mapped to one or more symbols. The one or more symbols then may be transmitted to a receiver using transmission techniques well known to those skilled in the art. The present invention finds particular benefit in digital subscriber line (DSL)-based systems in accord with the ITU G.922.1 Recommendation and similar standards.

摘要翻译： 这里公开了用于多电平信道编码的各种技术。 对于包括多个位的给定二进制字，最低有效位可以通过诸如turbo信道编码或低密度奇偶校验（LDPC）信道编码的增强编码技术来编码。 可以使用网格编码调制（TCM）编码对二进制字的剩余位的子集进行编码。 增强的信道编码和TCM编码的结果可以映射到一个或多个符号。 然后可以使用本领域技术人员公知的传输技术将一个或多个符号发送到接收机。 本发明在符合ITU G.922.1建议书和类似标准的基于数字用户线路（DSL）的系统中具有特别的益处。

公开(公告)号：US20070157065A1

公开(公告)日：2007-07-05

申请号：US11615535

申请日：2006-12-22

申请人： Julien Pons ,  Amitkumar Mahadevan ,  Patrick Duvaut

发明人： Julien Pons ,  Amitkumar Mahadevan ,  Patrick Duvaut

IPC分类号： H03M13/00 ,  G06F11/00

CPC分类号： H03M13/2732 ,  H03M13/1102 ,  H03M13/2957 ,  H03M13/31 ,  H03M13/6362 ,  H04L1/0066 ,  H04L1/0068 ,  H04L1/0071 ,  H04L27/2601

摘要： Included are embodiments for self protection. At least one embodiment includes Self-protection Unit for protecting a signal that includes a first receiving component configured to receive data, the received data being received as at least one frame and a subframing component configured to subframe at least a portion of the received data, wherein subframing includes converting the at least one into a plurality of subframes. Some embodiments include a subframe interleaver component configured to interleave at least a portion of the subframes.

摘要翻译： 包括自我保护的实施例。 至少一个实施例包括用于保护包括被配置为接收数据的第一接收组件的信号的自保护单元，被接收为至少一个帧的接收数据和被配置为子帧接收到的数据的至少一部分的子帧组件， 其中子帧包括将所述至少一个转换成多个子帧。 一些实施例包括被配置为交织子帧的至少一部分的子帧交织器组件。