Method for data transmission within a communication system, subscriber and communication system

A method for data transmission via an interface between a communication pair of a transmitting subscriber and a receiving subscriber of a communication system, wherein a scrambled pilot signal is used both for channel measurement and for data transmission, wherein

• the data transmission is symbol-based and wherein for transmitting the data the method comprises the steps of:
• providing at least one pilot symbol, at least one scrambling code and user/control data;
• generating a scrambled pilot signal by combining the pilot symbol and the scrambling code;
• inserting the user/control data in the scrambled pilot signal,
• wherein the scrambling code is selected based on an agreement of a context of the communication pair, and
• where the context corresponds to a given meaning of a specific scrambled sequence of bits used in the at least one scrambling code and identifies a service of the communication system.