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    • 2. 发明授权
    • Method for identifying data transmission rate, and a receiver
    • 识别数据传输速率的方法和接收机
    • US6167079A
    • 2000-12-26
    • US894787
    • 1997-08-28
    • Pasi KinnunenIlkka Keskitalo
    • Pasi KinnunenIlkka Keskitalo
    • H04B1/707H03M13/23H04L1/00H04L25/02H04B3/46H04B17/00H04Q1/20
    • H04L1/0054H04L1/0046H04L25/0262
    • A method and receiver for identifying data transmission rate from a signal which has several transmission rate alternatives. The signal contains modulation symbols (201 to 206) which are formed as a vector and which are submatrices of a known, essentially orthogonal transform matrix selected on the basis of a combination of bits to be transmitted. A correlation is formed between a received modulation symbol (201 to 206) and the known modulation matrix, as a result of which correlation vectors (301 to 306) are produced, each correlation vector being composed of correlation values (311) which are used to detect the signal. By utilizing the correlation values (311) of one or more correlation vectors (301 to 306), an estimate (556) is formed for each data transmission rate representing the probability of the data transmission rate of the signal, and the estimates (556) are used to select the most probable data transmission rate to be used for detecting the signal.
    • PCT No.PCT / FI96 / 00691 Sec。 371日期1997年8月28日 102(e)日期1997年8月28日PCT 1996年12月20日PCT公布。 WO97 / 24848 PCT公开号 日期1997年7月10日一种用于从具有若干传输速率替代的信号识别数据传输速率的方法和接收机。 该信号包含形成为向量的调制符号(201至206),它们是基于要发送的比特组合选择的已知基本上正交的变换矩阵的子矩阵。 在接收到的调制符号(201〜206)和已知的调制矩阵之间形成相关性,其结果是产生相关向量(301〜306),每个相关向量由相关值(311)组成,相关值用于 检测信号。 通过利用一个或多个相关向量(301〜306)的相关值(311),形成表示信号的数据传输速率的概率的每个数据传输速率的估计(556),并且估计(556) 用于选择用于检测信号的最可能的数据传输速率。