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    Parallel concatenated code with soft-in-soft-out interactive turbo decoder
    2.
    发明申请
    Parallel concatenated code with soft-in-soft-out interactive turbo decoder 失效
    软和软交互式turbo解码器的并行级联代码

    公开(公告)号：US20060251184A1

    公开(公告)日：2006-11-09

    申请号：US11481365

    申请日：2006-07-05

    申请人： Kelly Cameron ,  Ba-Zhong Shen ,  Hau Tran ,  Christopher Jones ,  Thomas Hughes

    发明人： Kelly Cameron ,  Ba-Zhong Shen ,  Hau Tran ,  Christopher Jones ,  Thomas Hughes

    IPC分类号： H04L27/00 ,  H04L23/02

    CPC分类号： H03M13/3972 ,  H03M13/151 ,  H03M13/1515 ,  H03M13/25 ,  H03M13/258 ,  H03M13/27 ,  H03M13/2757 ,  H03M13/29 ,  H03M13/2966 ,  H03M13/2978 ,  H03M13/3905 ,  H03M13/3922 ,  H03M13/3927 ,  H03M13/3988 ,  H03M13/4107 ,  H03M13/6505 ,  H03M13/6561 ,  H04L1/0041 ,  H04L1/005 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0066 ,  H04L1/0068 ,  H04L1/0071

    摘要： A method for parallel concatenated (Turbo) encoding and decoding. Turbo encoders receive a sequence of input data tuples and encode them. The input sequence may correspond to a sequence of an original data source, or to an already coded data sequence such as provided by a Reed-Solomon encoder. A turbo encoder generally comprises two or more encoders separated by one or more interleavers. The input data tuples may be interleaved using a modulo scheme in which the interleaving is according to some method (such as block or random interleaving) with the added stipulation that the input tuples may be interleaved only to interleaved positions having the same modulo-N (where N is an integer) as they have in the input data sequence. If all the input tuples are encoded by all encoders then output tuples can be chosen sequentially from the encoders and no tuples will be missed. If the input tuples comprise multiple bits, the bits may be interleaved independently to interleaved positions having the same modulo-N and the same bit position. This may improve the robustness of the code. A first encoder may have no interleaver or all encoders may have interleavers, whether the input tuple bits are interleaved independently or not. Modulo type interleaving also allows decoding in parallel.

    摘要翻译： 一种并行级联（Turbo）编码和解码的方法。 Turbo编码器接收一系列输入数据元组并进行编码。 输入序列可以对应于原始数据源的序列，或者对应于已由Reed-Solomon编码器提供的已经编码的数据序列。 turbo编码器通常包括由一个或多个交织器分离的两个或更多个编码器。 输入数据元组可以使用其中交织根据某些方法（例如块或随机交织）的加法规则进行交织，其中输入元组可以只交织到具有相同模N的交织位置 其中N是整数），因为它们在输入数据序列中具有。 如果所有的输入元组都是由所有的编码器编码的，那么输出元组可以从编码器顺序选择，也不会丢失元组。 如果输入元组包含多个比特，那么这些比特可以与具有相同模N和相同比特位置的交织位置独立交织。 这可以提高代码的鲁棒性。 第一编码器可以不具有交织器，或者所有编码器可以具有交织器，无论输入元组位是否独立交错。 模式类型交织也允许并行解码。

    Parallel concatenated code with soft-in soft-out interactive turbo decoder
    3.
    发明申请
    Parallel concatenated code with soft-in soft-out interactive turbo decoder 有权
    并行级联代码与软入软交互式turbo解码器

    公开(公告)号：US20050015705A1

    公开(公告)日：2005-01-20

    申请号：US10843606

    申请日：2004-05-11

    申请人： Kelly Cameron ,  Ba-Zhong Shen ,  Hau Tran ,  Christopher Jones ,  Thomas Hughes

    发明人： Kelly Cameron ,  Ba-Zhong Shen ,  Hau Tran ,  Christopher Jones ,  Thomas Hughes

    IPC分类号： H03M13/15 ,  H03M13/25 ,  H03M13/27 ,  H03M13/29 ,  H03M13/41 ,  H03M13/45 ,  H04L1/00 ,  G06F11/00 ,  H03M13/03

    CPC分类号： H03M13/3972 ,  H03M13/151 ,  H03M13/1515 ,  H03M13/25 ,  H03M13/258 ,  H03M13/27 ,  H03M13/2757 ,  H03M13/29 ,  H03M13/2966 ,  H03M13/2978 ,  H03M13/3905 ,  H03M13/3922 ,  H03M13/3927 ,  H03M13/3988 ,  H03M13/4107 ,  H03M13/6505 ,  H03M13/6561 ,  H04L1/0041 ,  H04L1/005 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0066 ,  H04L1/0068 ,  H04L1/0071

    摘要： A method for parallel concatenated (Turbo) encoding and decoding. Turbo encoders receive a sequence of input data tuples and encode them. The input sequence may correspond to a sequence of an original data source, or to an already coded data sequence such as provided by a Reed-Soloman encoder. A turbo encoder generally comprises two or more encoders separated by one or more interleavers. The input data tuples may be interleaved using a modulo scheme in which the interleaving is according to some method (such as block or random interleaving) with the added stipulation that the input tuples may be interleaved only to interleaved positions having the same modulo-N (where N is an integer) as they have in the input data sequence. If all the input tuples are encoded by all encoders then output tuples can be chosen sequentially from the encoders and no tuples will be missed. If the input tuples comprise multiple bits, the bits may be interleaved independently to interleaved positions having the same modulo-N and the same bit position. This may improve the robustness of the code. A first encoder may have no interleaver or all encoders may have interleavers, whether the input tuple bits are interleaved independently or not. Modulo type interleaving also allows decoding in parallel.

    摘要翻译： 一种并行级联（Turbo）编码和解码的方法。 Turbo编码器接收一系列输入数据元组并进行编码。 输入序列可以对应于原始数据源的序列，或者对应于已经编码的数据序列，例如由Reed-Soloman编码器提供的。 turbo编码器通常包括由一个或多个交织器分离的两个或更多个编码器。 输入数据元组可以使用其中交织根据某些方法（例如块或随机交织）的加法规则进行交织，其中输入元组可以只交织到具有相同模N的交织位置 其中N是整数），因为它们在输入数据序列中具有。 如果所有的输入元组都是由所有的编码器编码的，那么输出元组可以从编码器顺序选择，也不会丢失元组。 如果输入元组包含多个比特，那么这些比特可以与具有相同模N和相同比特位置的交织位置独立交织。 这可以提高代码的鲁棒性。 第一编码器可以不具有交织器，或者所有编码器可以具有交织器，无论输入元组位是否独立交错。 模式类型交织也允许并行解码。

    Parallel concatenated code with soft-in soft-out interactive turbo decoder
    4.
    发明申请
    Parallel concatenated code with soft-in soft-out interactive turbo decoder 失效
    并行级联代码与软入软交互式turbo解码器

    公开(公告)号：US20050021555A1

    公开(公告)日：2005-01-27

    申请号：US10897200

    申请日：2004-07-22

    申请人： Kelly Cameron ,  Hau Tran ,  Ba-Zhong Shen ,  Christopher Jones

    发明人： Kelly Cameron ,  Hau Tran ,  Ba-Zhong Shen ,  Christopher Jones

    IPC分类号： H03M13/15 ,  H03M13/25 ,  H03M13/27 ,  H03M13/29 ,  H03M13/41 ,  H03M13/45 ,  H04L1/00 ,  G06F17/30

    CPC分类号： H03M13/3972 ,  H03M13/151 ,  H03M13/1515 ,  H03M13/25 ,  H03M13/258 ,  H03M13/27 ,  H03M13/2757 ,  H03M13/29 ,  H03M13/2966 ,  H03M13/2978 ,  H03M13/3905 ,  H03M13/3922 ,  H03M13/3927 ,  H03M13/3988 ,  H03M13/4107 ,  H03M13/6505 ,  H03M13/6561 ,  H04L1/0041 ,  H04L1/005 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0066 ,  H04L1/0068 ,  H04L1/0071

    摘要： A method for parallel concatenated (Turbo) encoding and decoding. Turbo encoders receive a sequence of input data tuples and encode them. The input sequence may correspond to a sequence of an original data source, or to an already coded data sequence such as provided by a Reed-Solomon encoder. A turbo encoder generally comprises two or more encoders separated by one or more interleavers. The input data tuples may be interleaved using a modulo scheme in which the interleaving is according to some method (such as block or random interleaving) with the added stipulation that the input tuples may be interleaved only to interleaved positions having the same modulo−N (where N is an integer) as they have in the input data sequence. If all the input tuples are encoded by all encoders then output tuples can be chosen sequentially from the encoders and no tuples will be missed. If the input tuples comprise multiple bits, the bits may be interleaved independently to interleaved positions having the same modulo−N and the same bit position. This may improve the robustness of the code. A first encoder may have no interleaver or all encoders may have interleavers, whether the input tuple bits are interleaved independently or not. Modulo type interleaving also allows decoding in parallel.

    摘要翻译： 一种并行级联（Turbo）编码和解码的方法。 Turbo编码器接收一系列输入数据元组并进行编码。 输入序列可以对应于原始数据源的序列，或者对应于已由Reed-Solomon编码器提供的已经编码的数据序列。 turbo编码器通常包括由一个或多个交织器分离的两个或更多个编码器。 输入数据元组可以使用其中交织根据某些方法（例如块或随机交织）的加法规则进行交织，其中输入元组可以只交织到具有相同模N的交织位置 其中N是整数），因为它们在输入数据序列中具有。 如果所有的输入元组都是由所有的编码器编码的，那么输出元组可以从编码器顺序选择，也不会丢失元组。 如果输入元组包含多个比特，那么这些比特可以与具有相同模N和相同比特位置的交织位置独立交织。 这可以提高代码的鲁棒性。 第一编码器可以不具有交织器，或者所有编码器可以具有交织器，无论输入元组位是否独立交错。 模式类型交织也允许并行解码。

    Amplifying magnitude metric of received signals during iterative decoding of LDPC (Low Density Parity Check) code and LDPC coded modulation
    7.
    发明申请
    Amplifying magnitude metric of received signals during iterative decoding of LDPC (Low Density Parity Check) code and LDPC coded modulation 有权
    在LDPC（低密度奇偶校验）码和LDPC编码调制的迭代解码期间，放大接收信号的幅度度量

    公开(公告)号：US20060107179A1

    公开(公告)日：2006-05-18

    申请号：US11190334

    申请日：2005-07-27

    申请人： Ba-Zhong Shen ,  Kelly Cameron ,  Scott Powell ,  Hau Tran

    发明人： Ba-Zhong Shen ,  Kelly Cameron ,  Scott Powell ,  Hau Tran

    IPC分类号： H03M13/00

    CPC分类号： H03M13/658 ,  H03M13/1111

    摘要： Amplifying magnitude metric of received signals during iterative decoding of LDPC code and LDPC coded modulation. By appropriately selecting a metric coefficient value that is used to calculate the initial conditions when decoding LDPC coded signals, a significant reduction in BER may be achieved at certain SNRs. The appropriate selection of the metric coefficient value may be performed depending on the particular SNR at which a communication system is operating. By adjusting this metric coefficient value according to the given LDPC code, modulation, and noise variance, the overall performance of the decoding may be significantly improved. The convergence speed is slowed down so that the decoder will not go to the wrong codeword, and the moving range of the outputs of the decoder is restricted so that the output will not oscillate too much and will eventually move to the correct codeword.

    摘要翻译： 在LDPC码和LDPC编码调制的迭代解码期间放大接收信号的幅度度量。 通过在解码LDPC编码信号时适当地选择用于计算初始条件的度量系数值，可以在某些SNR下实现BER的显着降低。 可以根据通信系统正在操作的特定SNR来执行度量系数值的适当选择。 通过根据给定的LDPC码，调制和噪声方差调整该度量系数值，可以显着提高解码的整体性能。 收敛速度变慢，因此解码器不会进入错误的码字，解码器的输出的移动范围受到限制，使得输出不会振荡太多，最终会移动到正确的码字。

    Asymmetrical mimo wireless communications
    8.
    发明申请
    Asymmetrical mimo wireless communications 有权
    不对称mimo无线通信

    公开(公告)号：US20050185575A1

    公开(公告)日：2005-08-25

    申请号：US10979368

    申请日：2004-11-01

    申请人： Christopher Hansen ,  Jason Trachewsky ,  Nambirajan Seshadri ,  Kelly Cameron ,  Hau Tran ,  Ba-Zhong Shen

    发明人： Christopher Hansen ,  Jason Trachewsky ,  Nambirajan Seshadri ,  Kelly Cameron ,  Hau Tran ,  Ba-Zhong Shen

    IPC分类号： H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04B7/216 ,  H04J11/00 ,  H04M1/00

    CPC分类号： H04B7/0613 ,  H04B7/0413

    摘要： A method for asymmetrical MIMO wireless communication begins by determining a number of transmission antennas for the asymmetrical MIMO wireless communication. The method continues by determining a number of reception antennas for the asymmetrical MIMO wireless communication. The method continues by, when the number of transmission antennas exceeds the number of reception antennas, using spatial time block coding for the asymmetrical MIMO wireless communication. The method continues by, when the number of transmission antennas does not exceed the number of reception antennas, using spatial multiplexing for the asymmetrical MIMO wireless communication.

    摘要翻译： 一种用于非对称MIMO无线通信的方法是通过确定用于非对称MIMO无线通信的多个发送天线来开始的。 该方法通过确定用于非对称MIMO无线通信的接收天线的数量来继续。 当发送天线的数量超过接收天线的数量时，该方法继续使用用于非对称MIMO无线通信的空间时间块编码。 当发送天线的数量不超过接收天线的数量时，该方法继续使用用于非对称MIMO无线通信的空间复用。

    IPHD (iterative parallel hybrid decoding) of various MLC (multi-level code) signals
    9.
    发明申请
    IPHD (iterative parallel hybrid decoding) of various MLC (multi-level code) signals 失效
    各种MLC（多级代码）信号的IPHD（迭代并行混合解码）

    公开(公告)号：US20050166132A1

    公开(公告)日：2005-07-28

    申请号：US11017157

    申请日：2004-12-20

    申请人： Ba-Zhong Shen ,  Hau Tran ,  Kelly Cameron

    发明人： Ba-Zhong Shen ,  Hau Tran ,  Kelly Cameron

    IPC分类号： H03M13/11 ,  H03M13/25 ,  H03M13/29 ,  H04L1/00 ,  H04L27/18 ,  H03M13/00 ,  G06F11/00

    CPC分类号： H04L1/005 ,  H03M13/1105 ,  H03M13/1111 ,  H03M13/1117 ,  H03M13/112 ,  H03M13/1148 ,  H03M13/255 ,  H03M13/258 ,  H03M13/2957 ,  H03M13/6325 ,  H03M13/658 ,  H04L1/0058 ,  H04L1/0071 ,  H04L27/18

    摘要： IPHD (Iterative Parallel Hybrid Decoding) of various MLC (Multi-Level Code) signals. Various embodiments are provided by which IPHD may be performed on MLC LDPC (Multi-Level Code Low Density Parity Check) coded modulation signals mapped using a plurality of mappings. This IPHD may also be performed on MLC LDPC coded modulation signals mapped using only a singe mapping as well. In addition, various embodiments are provided by which IPHD may be performed on ML TC (Multi-Level Turbo Code) signals. These principles of IPHD, shown with respect to various embodiments IPHD of MLC LDPC coded modulation signals as well as the IPHD of ML TC signals, may be extended to performing IPHD of other signal types as well. Generally speaking, based on the degree of the MLC signal, a corresponding number of parallel paths operate in cooperation to decode the various levels of the MLC signal.

    摘要翻译： 各种MLC（多级码）信号的IPHD（迭代并行混合解码）。 提供了各种实施例，通过该实施例可以对使用多个映射映射的MLC LDPC（多级码低密度奇偶校验）编码的调制信号执行IPHD。 也可以对仅使用单个映射映射的MLC LDPC编码调制信号执行该IPHD。 此外，提供了可以在ML TC（多级Turbo码）信号上执行IPHD的各种实施例。 关于各种实施方案所示的IPHD的这些原理，MLC LDPC编码调制信号以及ML TC信号的IPHD也可以扩展到执行其他信号类型的IPHD。 一般而言，基于MLC信号的程度，相应数量的并行路径协同工作来解码MLC信号的各种级别。

    LDPC (low density parity check) coded modulation hybrid decoding
    10.
    发明申请
    LDPC (low density parity check) coded modulation hybrid decoding 有权
    LDPC（低密度奇偶校验）编码调制混合解码

    公开(公告)号：US20080005650A1

    公开(公告)日：2008-01-03

    申请号：US11701156

    申请日：2007-02-01

    申请人： Ba-Zhong Shen ,  Hau Tran ,  Kelly Cameron

    发明人： Ba-Zhong Shen ,  Hau Tran ,  Kelly Cameron

    IPC分类号： G06F11/00

    CPC分类号： H04L1/005 ,  H03M13/1105 ,  H03M13/255 ,  H04L1/0058

    摘要： LDPC (Low Density Parity Check) coded modulation hybrid decoding. A novel approach is presented wherein a combination of bit decoding and symbol level decoding (e.g., hybrid decoding) is performed for LDPC coded signals. Check node updating and symbol node updating are successively and alternatively performed on bit edge messages for a predetermined number of decoding iterations or until a sufficient degree of precision is achieved. The symbol node updating of the bit edge messages involves using symbol metrics corresponding to the symbol being decoded as well as the bit edge messages most recently updated by check node updating. The check node updating of the bit edge messages involves using the bit edge messages most recently updated by symbol node updating. The symbol node updating also involves computing possible soft symbol estimates for the symbol during each decoding iteration.

    摘要翻译： LDPC（低密度奇偶校验）编码调制混合解码。 提出了一种新颖的方法，其中对LDPC编码信号执行比特解码和符号级解码（例如混合解码）的组合。 对于预定数量的解码迭代，或直到达到足够的精确度，连续替代地对位边消息执行检查节点更新和符号节点更新。 位边消息的符号节点更新涉及使用与被解码的符号相对应的符号度量以及最近由校验节点更新更新的位边消息。 位边消息的校验节点更新涉及使用最近通过符号节点更新更新的位边消息。 符号节点更新还涉及在每次解码迭代期间计算符号的可能的软符号估计。