公开(公告)号：US20120216084A1

公开(公告)日：2012-08-23

申请号：US13029934

申请日：2011-02-17

申请人： Dexter T. Chun ,  Jack K. Wolf ,  Jungwon Suh ,  Tirdad Sowlati

发明人： Dexter T. Chun ,  Jack K. Wolf ,  Jungwon Suh ,  Tirdad Sowlati

IPC分类号： G06F11/00

CPC分类号： H04L12/12 ,  H04L1/0001 ,  H04L1/0036 ,  H04L25/02 ,  H04W52/0209 ,  Y02D70/00

摘要： A system involves a first SerDes link from a first integrated circuit (IC) to a second IC and a second link from the second IC to the first IC. Power consumption settings in circuitry of the first link are adjusted to control power consumption such that the bit error rate of the first link is maintained in a range, where the lower bound of the range is substantially greater than zero. Power consumption settings in circuitry for the second link are adjusted to control power consumption such that the bit error rate of the second link is maintained in range, where the lower bound of the range is substantially greater than zero. In one example, circuitry in the second IC detects errors in the first link and reports back via the second link. The first IC uses the reported information to determine a bit error rate for the first link.

摘要翻译： 系统涉及从第一集成电路（IC）到第二IC的第一SerDes链路以及从第二IC到第一IC的第二链路。 调整第一链路的电路中的功率消耗设置以控制功率消耗，使得第一链路的误码率保持在范围的下限基本上大于零的范围内。 调整用于第二链路的电路中的功率消耗设置以控制功率消耗，使得第二链路的误码率保持在范围内，其范围的下限基本上大于零。 在一个示例中，第二IC中的电路检测第一链路中的错误并通过第二链路报告。 第一个IC使用报告的信息来确定第一个链路的误码率。

公开(公告)号：US07787389B2

公开(公告)日：2010-08-31

申请号：US09933912

申请日：2001-08-20

申请人： Tao Chen ,  Jack K. Wolf ,  Joseph P. Odenwalder ,  Edward G. Tiedemann, Jr. ,  Brian K. Butler ,  Yongbin Wei

发明人： Tao Chen ,  Jack K. Wolf ,  Joseph P. Odenwalder ,  Edward G. Tiedemann, Jr. ,  Brian K. Butler ,  Yongbin Wei

IPC分类号： G01R31/08 ,  G06F11/30

CPC分类号： H03M13/3715 ,  H03M13/09 ,  H03M13/2909 ,  H03M13/293 ,  H04H20/30 ,  H04W52/0219 ,  H04W52/0245 ,  H04W52/322 ,  H04W72/005 ,  Y02D70/1222 ,  Y02D70/1242

摘要： A Method and System for Utilization of an Outer Decoder in a Broadcast Services Communication System is described. An outer decoder and an inner decoder encode a block of information to be transmitted, to improve protection by adding redundancy. The redundancy permits decoding of the information from less than a complete encoded block of information. Consequently, the receiving station determines when sufficient amount of information for successful decoding has been received, and utilizes the time remaining before the next block of information arrives to perform other activities, e.g., hard handoff on a broadcast channel, inter-frequency hard handoff, and other activities. Alternatively, the receiving station can cease reception, thus decrease power consumption. Furthermore, part of the information block may be utilized for transmission of signaling information.

摘要翻译： 描述了在广播业务通信系统中利用外部解码器的方法和系统。 外部解码器和内部解码器对要发送的信息块进行编码，以通过增加冗余来改善保护。 冗余允许从小于完整编码的信息块解码信息。 因此，接收站确定何时已经接收到用于成功解码的信息的足够量，并且利用在下一个信息块到达之前的剩余时间来执行其他活动，例如广播信道上的硬切换，频间硬切换， 和其他活动。 或者，接收站可以停止接收，从而降低功耗。 此外，信息块的一部分可以用于发送信令信息。

公开(公告)号：US07489744B2

公开(公告)日：2009-02-10

申请号：US09965518

申请日：2001-09-25

申请人： Nagabhushana T. Sindhushayana ,  Jack K. Wolf

发明人： Nagabhushana T. Sindhushayana ,  Jack K. Wolf

IPC分类号： H03D1/00

CPC分类号： H04L1/0066 ,  H03M13/114 ,  H03M13/1191 ,  H03M13/2957 ,  H04L1/0047 ,  H04L1/0055

摘要： In a communication system 10, a method and apparatus provide for decoding a sequence of turbo encoded data symbols. The channel nodes Rx, Ry and Rz are updated based on a received channel output, and the outgoing messages from symbol nodes (701, 707, 708) are initialized. The symbol nodes symbol nodes (701, 707, 708) are in communication with the channel nodes Rx, Ry and Rz. Updates of computational nodes C (704) and D (706) at different time instances are performed in accordance with a triggering schedule.

摘要翻译： 在通信系统10中，方法和装置提供对turbo编码数据符号序列进行解码。 信道节点Rx，Ry和Rz基于接收到的信道输出被更新，并且来自符号节点（701,707,708）的输出消息被初始化。 符号节点符号节点（701,707,708）与信道节点Rx，Ry和Rz通信。 根据触发时间表执行不同时间实例的计算节点C（704）和D（706）的更新。

公开(公告)号：US06986092B2

公开(公告)日：2006-01-10

申请号：US10010199

申请日：2001-12-04

申请人： Brian K. Butler ,  Jack K. Wolf ,  Ryan Milne

发明人： Brian K. Butler ,  Jack K. Wolf ,  Ryan Milne

IPC分类号： H03M13/00

CPC分类号： H03M13/6502 ,  H03M13/1515 ,  H03M13/19 ,  H03M13/2909 ,  H03M13/293 ,  H03M13/37

摘要： Techniques for efficiently performing erasure-and-single-error correction block decoding on a received block of symbols previously coded column-wise with an (N, K) linear block code and row-wise with an error detection code (e.g., a CRC code). Initially, each row of the received block is marked as either an erased row or an un-erased row. To perform erasure-and-single-error correction block decoding on the received block, a codeword corresponding to a column of the received block containing an undetected symbol error is initially identified. The location of the symbol error in the codeword is then determined based on a particular block decoding scheme and corresponding to the selected (N, K) block code. The row of the received block containing the symbol error is then marked as an erased row. Block decoding may then be performed for the received block with the newly marked erased row containing the symbol error.

公开(公告)号：US08548102B2

公开(公告)日：2013-10-01

申请号：US12778605

申请日：2010-05-12

申请人： Dung N. Doan ,  Jack K. Wolf ,  Yongbin Wei

发明人： Dung N. Doan ,  Jack K. Wolf ,  Yongbin Wei

IPC分类号： H04L27/06 ,  H03M13/41

CPC分类号： H03M13/413 ,  H03M13/6525

摘要： Methods and apparatuses for enhanced processing of received channels in a mobile communications system is described. Particularly, convolutionally encoded tail biting data in a mobile communications system is efficiently decoding by replicating the received encoded signal N times, where N equals a number of iterations. A Viterbi decoding algorithm is applied and a most likely survivor path is obtained. The ensuing decoding window is set as a fixed decoding window and placed at a mid-section of the most likely survivor path. Simulations have shown codeword accuracy to be comparable to MLSE with less complexity. A high degree of accuracy has been obtained for N=3.

摘要翻译： 描述了用于移动通信系统中的接收信道的增强处理的方法和装置。 特别地，在移动通信系统中卷积编码的尾巴数据通过复制所接收的编码信号N次而有效地进行解码，其中N等于迭代次数。 应用维特比解码算法，获得最可能的幸存路径。 随后的解码窗口被设置为固定解码窗口并且被放置在最可能的幸存路径的中间部分。 仿真结果表明，码字精度与MLSE相当，复杂度较低。 对于N = 3，获得了高度的准确度。

公开(公告)号：US06836516B2

公开(公告)日：2004-12-28

申请号：US10354656

申请日：2003-01-30

申请人： Jack K. Wolf

发明人： Jack K. Wolf

IPC分类号： H04L2302

CPC分类号： H03M13/6513 ,  H03M13/2957 ,  H03M13/2972

摘要： A decoding method and apparatus include providing capability for decoding data symbols that were encoded in a transmitter by either a serial-concatenated code or turbo code in a parallel processing fashion. The receiver upon knowing the encoding method may reconfigure the selection of data symbols from a table to accommodate the appropriate decoding process. Initially a data symbol estimate for a number of data symbols of a plurality of data symbols Xi, Yi, and Wi are determined. The estimates of data symbols Xi, Yi, and Wi passing to a first and second decision nodes include estimates for the variables in one or more encoding equations. A new estimate for the data symbol Xi is determined based on the estimate determined at the initial step and the new estimate for each occurrence of the data symbol Xi at the first and second decision nodes. After normalizing estimates of data symbols Xi, Yi, and Wi, a new estimate for data symbol Xi may be determined which holds more confidently a true value for the data symbol Xi than a previously determined estimate.

摘要翻译： 一种解码方法和装置包括提供以并行处理方式通过串行编码或turbo码解码在发送器中编码的数据符号的能力。 知道编码方法的接收机可以从表重新配置数据符号的选择以适应适当的解码过程。 最初，确定多个数据符号Xi，Yi和Wi的多个数据符号的数据符号估计。 传递到第一和第二判定节点的数据符号Xi，Yi和Wi的估计包括一个或多个编码方程中的变量的估计。 基于在初始步骤中确定的估计和在第一和第二判定节点处的数据符号Xi的每次出现的新估计来确定数据符号Xi的新估计。 在对数据符号Xi，Yi和Wi的估计进行归一化之后，可以确定数据符号Xi的新估计，其比数据符号Xi更肯定地比先前确定的估计更适合于数据符号Xi的真实值。

公开(公告)号：US06542559B1

公开(公告)日：2003-04-01

申请号：US09571066

申请日：2000-05-15

申请人： Jack K. Wolf

发明人： Jack K. Wolf

IPC分类号： H04L2706

CPC分类号： H03M13/6513 ,  H03M13/2957 ,  H03M13/2972

摘要： A decoding method and apparatus include providing capability for decoding data symbols that were encoded in a transmitter by either a serial-concatenated code or turbo code in a parallel processing fashion. The receiver upon knowing the encoding method may reconfigure the selection of data symbols from a table (600) to accommodate the appropriate decoding process. Initially a data symbol estimate for a number of data symbols of a plurality of data symbols Xi, Yi, and Wi are determined. The estimates of data symbols Xi, Yi, and Wi passing to a first and second decision nodes (610, 620) include estimates for the variables in one or more encoding equations. A new estimate for the data symbol Xi is determined based on the estimate determined at the initial step and the new estimate for each occurrence of the data symbol Xi at the first and second decision nodes (610, 620). After normalizing estimates of data symbols Xi, Yi, and Wi, a new estimate for data symbol Xi may be determined which holds more confidently a true value for the data symbol Xi than a previously determined estimate.

摘要翻译： 一种解码方法和装置包括提供以并行处理方式通过串行编码或turbo码解码在发送器中编码的数据符号的能力。 知道编码方法的接收机可以从表（600）重新配置数据符号的选择以适应适当的解码过程。 最初，确定多个数据符号Xi，Yi和Wi的多个数据符号的数据符号估计。 传递到第一和第二判定节点（610,620）的数据符号Xi，Yi和Wi的估计包括对一个或多个编码方程中的变量的估计。 基于在初始步骤中确定的估计和在第一和第二判定节点（610,620）处的数据符号Xi的每次出现的新估计来确定数据符号Xi的新估计。 在对数据符号Xi，Yi和Wi的估计进行归一化之后，可以确定数据符号Xi的新估计，其比数据符号Xi更肯定地比先前确定的估计更适合于数据符号Xi的真实值。

公开(公告)号：US5983383A

公开(公告)日：1999-11-09

申请号：US786952

申请日：1997-01-17

申请人： Jack K. Wolf

发明人： Jack K. Wolf

IPC分类号： H03M13/15 ,  H03M13/29 ,  H03M13/41 ,  H03M13/47 ,  H04L1/00 ,  H04L1/16 ,  H03M13/00 ,  H03M13/12

CPC分类号： H04L1/0057 ,  H03M13/29 ,  H03M13/47 ,  H04L1/0054 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/16

摘要： In a concatenated code data, correctly decoded code words from a block decoder is utilized to improve the performance of the convolutional decoder. A code word can sometimes be correctly decoded prior to receipt of all the symbols for the code word. Early decoding of the code word allows for the correct recreation of the entire code word, even the symbols which have not yet been received. The entire corrected code word is used by the convolutional decoder to eliminate branches the trellis, thus improving decoding of prior data bits and future data bits in the trellis. The chain back distance of the convolutional decoder can also be made shorter based on the knowledge that some of the received code words have been correctly decoded. Finally, the parity symbols which have not yet been received for the correctly decoded code word can be eliminated from transmission to improve the overall transmission rate.

摘要翻译： 在级联代码数据中，利用来自块解码器的正确解码的码字来提高卷积解码器的性能。 有时可以在接收到代码字的所有符号之前对代码字进行正确解码。 代码字的早期解码允许对整个代码字的正确重构，甚至是尚未被接收的符号。 整个纠错码字被卷积解码器用于消除网格分支，从而改善了网格中先前数据位和未来数据位的解码。 基于一些接收到的代码字已经被正确解码的知识，卷积解码器的链回距离也可以缩短。 最后，可以从传输中消除尚未被接收到用于正确解码的码字的奇偶校验符号，以提高整体传输速率。