Sender, Empfänger und Leistungsregelung in einem Datenübertragungssystem

摘要

In a data transmission system, a transmitter adds control data to transmission data, and modulates the resultant signal by a predetermined modulation method, and sends the result in a wireless manner. A receiver detects a reception power intensity by use of the control data contained in the transmitted signal. The control data includes a reception-power detection portion having a wide spectrum signal whose period is longer than the maximum delay of a delayed wave as prescribed in the channel model of the wireless communication system, said wide spectrum signal being used for detecting reception power intensity.