Sliding Window Method and Apparatus for Soft Input/Soft Output Processing
    81.
    发明申请
    Sliding Window Method and Apparatus for Soft Input/Soft Output Processing 有权
    用于软输入/软输出处理的滑动窗口方法和装置

    公开(公告)号:US20080104488A1

    公开(公告)日:2008-05-01

    申请号:US11553767

    申请日:2006-10-27

    申请人: Jung-Fu Cheng

    发明人: Jung-Fu Cheng

    IPC分类号: H03M13/03

    摘要: In one or more embodiments, a method of processing a soft value sequence according to an iterative soft-input-soft-output (SISO) algorithm comprises carrying out sliding-window processing of the soft value sequence in a first iteration using first window placements and in a second iteration using second window placements, and varying the window placements between the first and second iterations. In at least one embodiment, a communication receiver circuit is configured to carry out iterative SISO processing, wherein it processes a soft value sequence using sliding windows, and wherein it varies window placements between one or more iterations. The communication receiver circuit comprises, for example, all or part of a turbo decoding circuit or other type of iterative block decoding circuit, an equalization and decoding circuit, a soft demodulation and decoding circuit, a multi-user detection and decoding circuit, or a multiple-input-multiple-output detection and decoding circuit.

    摘要翻译: 在一个或多个实施例中,根据迭代软输入软输出(SISO)算法来处理软值序列的方法包括:使用第一窗口布局在第一次迭代中执行软值序列的滑动窗口处理;以及 在使用第二窗口布局的第二次迭代中,以及在第一和第二迭代之间改变窗口布局。 在至少一个实施例中,通信接收器电路被配置为执行迭代SISO处理,其中它使用滑动窗口处理软值序列,并且其中它改变一个或多个迭代之间的窗口布置。 通信接收电路例如包括turbo解码电路或其他类型的迭代块解码电路,均衡解码电路,软解调和解码电路,多用户检测和解码电路或全部或部分 多输入多输出检测和解码电路。

    Method and apparatus for decoding of turbo encoded data in a communication system
    82.
    发明授权
    Method and apparatus for decoding of turbo encoded data in a communication system 有权
    用于在通信系统中解码turbo编码数据的方法和装置

    公开(公告)号:US07251770B2

    公开(公告)日:2007-07-31

    申请号:US10915134

    申请日:2004-08-10

    IPC分类号: H03M13/29 H03M13/41

    摘要: A method and apparatus for decoding turbo encoded data. A first turbo decoding iteration is performed to produce a most likely sequence of symbols, each symbol having an amplitude value and a positive or negative sign. The sequence of symbols is error checked, and if an error is detected, the apparatus forms a next most likely sequence by reversing the positive or negative sign of the symbol having the smallest amplitude. If an error is again detected, additional sign reversals are performed on symbols with larger amplitudes, and on multiple symbols. Each modification is error checked. If none of the modifications produce an error-free sequence, and a maximum number of modifications are performed, the apparatus performs another turbo decoding iteration to produce another sequence of symbols. The process is then repeated until an error-free sequence is produced or a maximum number of iterations are performed.

    摘要翻译: 用于对turbo编码数据进行解码的方法和装置。 执行第一turbo解码迭代以产生最可能的符号序列,每个符号具有振幅值和正号或负号。 符号序列被错误检查,并且如果检测到错误,则该装置通过反转具有最小幅度的符号的正号或负号来形成下一个最可能的序列。 如果再次检测到错误,则对具有较大幅度的符号和多个符号执行附加符号反转。 每个修改都被错误检查。 如果没有一个修改产生无错的序列,并且执行最大数量的修改,则该装置执行另一个turbo解码迭代以产生另一个符号序列。 然后重复该过程,直到产生无错序列或执行最大次数。

    Adaptive hybrid ARQ algorithms
    83.
    发明授权
    Adaptive hybrid ARQ algorithms 有权
    自适应混合ARQ算法

    公开(公告)号:US07155655B2

    公开(公告)日:2006-12-26

    申请号:US10624321

    申请日:2003-07-22

    申请人: Jung-Fu Cheng

    发明人: Jung-Fu Cheng

    IPC分类号: H04L1/16 H03M13/35

    摘要: A method and apparatus for communicating a message from a transmitting station to a remote receiving station by adaptively selecting a retransmission protocol from two or more retransmission protocols based on at least one changing transmission variable is described herein. The transmitting station transmits a first version of the message in a first transmission. When the previous transmission was unsuccessful, a controller adaptively selects either the first version of the message or a second version of the message in accordance with the selected protocol.

    摘要翻译: 这里描述了一种通过基于至少一个变化的传输变量自适应地从两个或更多个重传协议选择重发协议来将消息从发射站传送到远程接收站的方法和装置。 发送站在第一传输中发送消息的第一版本。 当先前的传输不成功时,控制器根据所选择的协议自适应地选择消息的第一版本或消息的第二版本。

    Method and apparatus for impairment correlation estimation in a wireless communication receiver
    85.
    发明申请
    Method and apparatus for impairment correlation estimation in a wireless communication receiver 有权
    无线通信接收机的损伤相关估计方法和装置

    公开(公告)号:US20060251156A1

    公开(公告)日:2006-11-09

    申请号:US11449258

    申请日:2006-06-08

    IPC分类号: H04B1/00 H04L1/02 H04B1/707

    摘要: A wireless communication receiver improves signal impairment correlation estimation in MIMO/MISO systems by considering different transmit power allocations and different transmit antenna power distributions in its impairment correlation calculations. The receiver may be implemented in according to a variety of architectures, including, but not limited to, Successive Interference Cancellation (SIC) Generalized RAKE (G-RAKE), Joint Detection (JD) G-RAKE, and Minimum Mean Squared Error (MMSE) G-RAKE. Regardless of the particular receiver architecture adopted, the improved impairment correlations may be used to calculate improved (RAKE) signal combining weights and/or improve channel quality estimates for reporting by receivers operating in Wideband CDMA (W-CDMA) systems transmitting HSDPA channels via MIMO or MISO transmitters. A transmitter may be configured to facilitate impairment correlation determinations by wireless communication receivers operating in MIMO/MISO environments, by signaling one or more values, e.g., data-to-pilot signal transmit power ratios and/or transmit antenna power distributions for the data and pilot signals.

    摘要翻译: 无线通信接收机通过在损伤相关计算中考虑不同的发射功率分配和不同的发射天线功率分布来改善MIMO / MISO系统中的信号损害相关估计。 接收机可以根据各种架构来实现,包括但不限于连续干扰消除(SIC)广义RAKE(G-RAKE),联合检测(JD)G-RAKE和最小均方误差(MMSE) )G-RAKE。 不考虑所采用的特定接收机架构,改进的损害相关可以用于计算改进的(RAKE)信号组合权重和/或改善用于在通过MIMO发送HSDPA信道的宽带CDMA(W-CDMA)系统中操作的接收机报告的信道质量估计 或MISO发射机。 发射机可以被配置为通过信令一个或多个值(例如数据到导频信号发射功率比和/或数据的发射天线功率分布)来促进在MIMO / MISO环境中操作的无线通信接收机的损害相关确定,以及 导频信号。

    Methods of estimating error rates for communications received using iterative processing and related receivers
    86.
    发明授权
    Methods of estimating error rates for communications received using iterative processing and related receivers 有权
    估算使用迭代处理和相关接收器接收的通信误码率的方法

    公开(公告)号:US06745352B2

    公开(公告)日:2004-06-01

    申请号:US09736761

    申请日:2000-12-13

    申请人: Jung-Fu Cheng

    发明人: Jung-Fu Cheng

    IPC分类号: G06F1100

    摘要: Estimating an error rate for received communications can include iteratively processing each of a plurality of received symbol sequences to provide a respective plurality of data sequences, and providing a number of iterations performed to provide each of the plurality of data sequences. An error rate for the received communications can then be estimated based on the number of iterations performed to provide each of the plurality of data sequences. Related receivers and communications devices are also discussed.

    摘要翻译: 估计接收到的通信的错误率可以包括迭代地处理多个接收的符号序列中的每一个以提供相应的多个数据序列,并且提供执行的多个迭代以提供多个数据序列中的每一个。 然后可以基于为提供多个数据序列中的每一个而执行的迭代次数来估计接收到的通信的错误率。 还讨论了相关的接收机和通信设备。

    System and method for signaling control information in a mobile communication network
    87.
    发明授权
    System and method for signaling control information in a mobile communication network 有权
    用于在移动通信网络中用于信令控制信息的系统和方法

    公开(公告)号:US09083495B2

    公开(公告)日:2015-07-14

    申请号:US13101531

    申请日:2011-05-05

    申请人: Jung-Fu Cheng

    发明人: Jung-Fu Cheng

    摘要: A method of transmitting control information from a wireless communication terminal to an access network includes generating control information comprising a plurality of control bits. The method also includes encoding the control bits using a block code that outputs an encoded bit sequence comprising encoded bits b(0), b(1), . . . , b(19) and dividing the encoded bits into a first group and a second group. The first group includes the encoded bits {b(0), b(1), b(2), b(3), b(4), b(6), b(7), b(8), b(13), b(19)} and the second group includes the encoded bits {b(5), b(9), b(10), 6(11), b(12), b(14), b(15), b(16), b(17), b(18)}. The method further includes transmitting the first group of encoded bits on a first set of carriers and transmitting the second group of encoded bits on a second set of carriers having different frequencies from the first set of carriers.

    摘要翻译: 从无线通信终端向接入网发送控制信息的方法包括生成包含多个控制位的控制信息。 该方法还包括使用输出包含编码比特b(0),b(1)的编码比特序列的块码来对控制比特进行编码。 。 。 ,b(19),并将编码比特分成第一组和第二组。 第一组包括编码比特{b(0),b(1),b(2),b(3),b(4),b(6),b(7),b(8) 并且第二组包括编码比特{b(5),b(9),b(10),6(11),b(12),b(14),b ),b(16),b(17),b(18)}。 该方法还包括在第一载波集合上传送第一组编码比特,并在第二载波集合具有不同频率的第二载波组上传送第二组编码比特。

    QPP interleaver/de-interleaver for turbo codes
    88.
    发明授权
    QPP interleaver/de-interleaver for turbo codes 有权
    用于turbo码的QPP交织器/去交织器

    公开(公告)号:US08959403B2

    公开(公告)日:2015-02-17

    申请号:US13561781

    申请日:2012-07-30

    申请人: Jung-Fu Cheng

    发明人: Jung-Fu Cheng

    摘要: A quadratic permutation polynomial (QPP) interleaver is described for turbo coding and decoding. The QPP interleaver has the form: Π(n)=f1n−fnn2 mod K, where the QPP coefficients f1 and f2 are designed to provide good error performance for a given block length K.

    摘要翻译: 描述了用于turbo编码和解码的二次置换多项式(QPP)交织器。 QPP交织器具有以下形式:&Pgr;(n)= f1n-fnn2 mod K,其中QPP系数f1和f2被设计为为给定的块长度K提供良好的误差性能。