In a receiving method for mobile radio applications, a given user data signal and at least one further user data signal located within the same frequency band are received. A session cookie is then formed by concatenating the length of the length of the secret, the length of the secret, the secret itself, and the encoded and encrypted configuration data. Other methods include implementation of a risk reduction or prevention program in individuals identified as being at risk. The lateral surface includes a second reflecting surface for the at least segmentally ring-shaped laser beam.