Can a network identify false base stations?
For instance, it is common for false base stations to lure devices by transmitting high power radio signals. Therefore, the network could correlate the received-signal strengths from multiple neighboring base stations reported by devices and potentially identify false base stations.
Are measurement reports effective in detecting false base stations?
The measurement reports from devices are very effective in detecting false base stations, as will be described later. Because the measurement reports already exist in all generations of mobile networks to manage device mobility, the detection framework fits seamlessly in all mobile network generations.
What is a false base station?
Therefore, any base station broadcasting a foreign mobile country code is also a false base station. Similarly, deployment information of its legitimate base stations could be utilized by the network to detect inconsistencies in the measurement reports from devices. One example is to detect invalid identifiers broadcasted by false base stations.
Can a 4G network detect a false base station?
The setup, shown in Figure 3, uses base stations of two network generations, 2G base stations called BTS, and 4G base stations called eNB. The purpose is to verify that a 4G network can be used to detect both 4G and 2G false base stations.
Is a 2G base station a false base station?
For example, a network, which has phased out 2G deployments and offers only 3G, 4G and 5G, does not expect to see 2G base stations in measurement reports. Therefore, any 2G base station devices report in its network is a false base station. The network could also make use of the fact that foreign networks are not allowed to operate in its country.
Can 3GPP standardization prevent false base stations?
Subscribe now! 3GPP standardization takes yet another step to combat false base stations. The security group in 3GPP (called SA3) identified that radio condition information received from devices – which is an integral part of all generations of mobile networks (2G/3G/4G/5G) – could contain fingerprints of false base stations.
Detecting false base stations in mobile networks
Device-Assisted Network-Based DetectionDevice-Assisted PartNetwork-Based PartExperiments in Our LabRoad AheadIt is important to continue research on the topic of false base stations or rogue base stations, not only on detection but also on prevention. It is also worth studying how a network's coverage and ability to analyze various other protocol messages can be leveraged, because other protocol messages could also contain fingerprints of false base statiSee more on ericsson.com patsnap.com
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