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发明公开
CN109644017A 用于选择频道的方法 有权

用于选择频道的方法
摘要：
用于在使用跳频方法的通信系统中选择频道(K1-Kn)的方法，所述方法尤其是用于对消耗测量仪器进行消耗检测，其中，数据在发送器和接收器之间借助无线电传输来传输，其中，所述数据以包括多个比特的数据包(4)的形式在一个频率/时间区间中传输，数据包(4)或数据包(4)的部分的传输通过可选多个不同频道(K1-Kn)进行，其中相应的数据包(4)或其部分在发送之前由发送器编码并且在接收之后由接收器解码，评价各频道(K1-Kn)的传输质量并且根据对频道(K1-Kn)的传输质量的评价，作出用于选择用于传输数据的一个频道(K1-Kn)或多个频道(K1-Kn)的决定，其中，用于成功传输的概率的似然比WQ在解码之前通过接收器确定，所述似然比WQ被考虑为用于确定相应的数据包(4)或其部分的干扰状态的度量，并且相应的频道(K1-Kn)的传输质量的评价借助数据包(4)或其部分的干扰状态进行。
摘要（英）：

A method selects frequency channels in a communication system using a frequency hopping method, in which data are transmitted between a transmitter and a receiver. The data are transmitted as data packets having a plurality of bits in a frequency/time block. A respective data packet is coded before transmission by the transmitter and is decoded after reception by the receiver. The transmission quality of the frequency channels is evaluated and, a decision is made for a selection of the frequency channel which is used for the transmission of the data. A likelihood ratio for the likelihood of a successful transmission is determined before the decoding by the receiver, the likelihood ratio is used as a metric for determining the interference state of the respective data packet, and the transmission quality of the respective frequency channel is evaluated on the basis of the interference state of the data packet.

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