VERFAHREN ZUR ERKENNUNG EINES ÜBERWACHUNGSSIGNALS IN EINER ORTSFESTEN STATION EINES MOBILEN FERNSPRECHSSYSTEMS.

摘要

The invention relates to a method for identifying a supervising signal at a base station in a mobile telephone system, in which the quality of radio links between the base station and mobile radio stations is supervised by several supervising signals of different frequencies, wherein a supervising signal received at the base station is bandpass-filtered by a bandpass filter (5) tuned to a desired supervising signal frequency, and the supervising signal is identified on the basis of the level of the filtered supervising signal (Y3). To improve the reliability of the identification, the supervising signal is identified by comparing (8) the level of the filtered supervising signal (Y3) with the level of received noise (Y1).