FIELD: communication.
SUBSTANCE: invention relates to the field of communication. The technical result is the confident identification of all types of blockers, including channel blockers and spoofing devices, using which an attacker carries out a negative impact on 4G, 5G networks, indicating the operator and the physical channels that are affected. The method uses an analysis unit and a receiver connected to it, while the analysis unit contains information about all possible telecom operators serving a specific local area, about the operators' communication system - 4G and/or 5G, frequencies and operating time of specific physical channels, signal level, and a receiver that it has the ability to detect a signal with a duration of less than 10 ms, detects signals in the 4G and/or 5G operating range in a specific local area and, if a signal is detected in such a range, compare the time and frequency of the received signal with the information contained in the analysis block, and in case of coincidence, check the level of the received signal with the signal level that it should be based on the recording of the analysis block and in case of a difference between these levels, information is displayed to the user indicating the communication operator, the communication system - 4G, 5G, about which physical channel was attacked.
EFFECT: confident identification of all types of blockers.
9 cl
