公开(公告)号：US20080215652A1

公开(公告)日：2008-09-04

申请号：US11835223

申请日：2007-08-07

申请人： Thuji Simon LIN ,  Steven Jaffe ,  Robindra Joshi

发明人： Thuji Simon LIN ,  Steven Jaffe ,  Robindra Joshi

IPC分类号： G06F17/14

CPC分类号： H04L27/34 ,  H04L1/0003 ,  H04L25/03178 ,  H04L25/03184

摘要： A device of dynamic communication of information allows, on the average, non-integer bits per symbol transmission, using a compact code set or a partial response decoding receiver. A stream of selectable predetermined integer bits, e.g., k or k+1 data bits, is grouped into a selectable integer number of bit vectors which then are mapped onto corresponding signal constellations forming transmission symbols. Two or more symbols can be grouped and further encoded, so that a symbol is spread across the two or more symbols being communicated. Sequence estimation using, for example, maximum likelihood techniques, as informed by noise estimates relative to the received signal. Each branch metric in computing the path metric of a considered sequence at the receiver is weighted by the inverse of the noise power. It is desirable that the constellation selection, sequence estimation and noise estimation be performed continuously and dynamically.

摘要翻译： 使用紧凑代码集或部分响应解码接收器的信息的动态通信装置平均允许每个符号传输的非整数比特。 可选择的预定整数比特流（例如k或k + 1个数据比特）被分组成可选择的整数个比特向量，然后将其映射到形成发送符号的相应的信号星座上。 可以对两个或更多个符号进行分组和进一步编码，使得符号分布在所传送的两个或更多个符号之间。 使用例如最大似然技术的序列估计，通过相对于接收信号的噪声估计来通知。 在接收机处计算所考虑的序列的路径度量的每个分支度量被噪声功率的倒数加权。 期望连续动态地执行星座选择，序列估计和噪声估计。