1 When the equipment is started, firstly, the operator signals in a certain range are interfered and shielded by increasing the transmission power. When the signal of the mobile phone user is blocked by the pseudo base station, the mobile phone will send out a signal to automatically search the surrounding base stations. After the signaling monitoring system of the pseudo base station obtains the signal,
The pseudo base station can send short messages to the target users according to the obtained IMSI and other information. When the pseudo base station equipment is running, the user's mobile phone signal within the effective range will be forcibly connected to the equipment, resulting in that the mobile phone can't normally use the service provided by the operator in a short time, 3
General mobile phone users will return to normal after 8 ~ 12 seconds of temporary disconnection, and some mobile phones must be turned on and off before they can re-access the network.
It will also cause mobile phone users to update their location frequently, which will make the wireless network resources in this area tense, cause network congestion and affect the normal communication of users.
The pseudo base station can display the sending number as any number, which can be a normal-looking mobile phone number, a well-known service number such as "1 10", 10086 "and" 95533 ",and a port number such as" 106 xxxxx ". According to the relevant person in charge of the Ministry of Public Security, if it is used by organizations or individuals with ulterior motives to fabricate and send false information in the name of public service numbers or authoritative departments, the social impact will be incalculable.