Apparatus for and method of converting soft symbol information to soft bit information
    24.
    发明授权
    Apparatus for and method of converting soft symbol information to soft bit information 失效
    将软符号信息转换为软位信息的装置和方法

    公开(公告)号:US06944242B2

    公开(公告)日:2005-09-13

    申请号:US09754570

    申请日:2001-01-04

    CPC classification number: H04L25/067 H04L27/22

    Abstract: An apparatus for and method of converting soft symbol decision information into soft bit decision information that overcomes the disadvantages of the prior art. The invention is adapted to receive M soft symbol values where each symbol represents m bits (M=2m). The output for each symbol comprises m soft values of bits representing the symbol. The invention is operative to convert the soft symbol values to soft bit values using the log likelihood ratios (LLRs) of a bit and a symbol expressed as conditional probabilities. The method of the invention is presented which can be performed in either hardware or software. A computer comprising a processor, memory, etc. is operative to execute software adapted to perform the soft symbol to bit conversion method of the present invention.

    Abstract translation: 一种用于将软符号判定信息转换为软比特决定信息的装置和方法,其克服了现有技术的缺点。 本发明适于接收M个软符号值,其中每个符号表示m个比特(M = 2)。 每个符号的输出包括表示符号的位的m个软值。 本发明可操作以使用比特的对数似然比(LLR)和表示为条件概率的符号将软符号值转换为软比特值。 本发明的方法可以用硬件或软件来执行。 包括处理器,存储器等的计算机可操作以执行适于执行本发明的软符号到位转换方法的软件。

    Data transfer scheme in a communications system incorporating multiple processing elements
    25.
    发明授权
    Data transfer scheme in a communications system incorporating multiple processing elements 失效
    包含多个处理元件的通信系统中的数据传输方案

    公开(公告)号:US06859434B2

    公开(公告)日:2005-02-22

    申请号:US10262804

    申请日:2002-10-01

    CPC classification number: H04J3/1682 G06F13/1663

    Abstract: A novel data transfer scheme for efficiently transferring data between multiple data generating processing units in a processing element wherein each processing unit may generate data at different rates. The data output of each processing unit is multiplexed into a single data stream and written to a memory buffer. A centralized software processor such as a CPU or DSP implements a demultiplexer operative to read the contents of the input buffer, demultiplex the data and distribute it to individual unit buffers thus recreating the original data streams generating by each of the processing units. The multiplexed data stream is generated by partitioning the outputs of the data generating processing units into multiple multiplexer groups based on individual data rates. The outputs of the various groups are collected by a multiplexer and used to build a single data stream having a well-defined structure.

    Abstract translation: 一种用于在处理单元中的多个数据产生处理单元之间有效地传送数据的新型数据传送方案,其中每个处理单元可以以不同的速率生成数据。 每个处理单元的数据输出被多路复用为单个数据流并写入存储缓冲器。 诸如CPU或DSP的集中式软件处理器实现解复用器,其操作以读取输入缓冲器的内容,解复用数据并将其分配到各个单元缓冲器,从而重新创建由每个处理单元产生的原始数据流。 通过基于各个数据速率将数据产生处理单元的输出划分成多个多路复用器组来生成复用数据流。 各组的输出由多路复用器收集,用于构建具有明确定义结构的单个数据流。

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