Beyond PS-LTE: Security Model Design Framework for PPDR Operational Environment

Table 3

Categories of security threats within the research scope.

No.	Category	Label	Explanation
1	UE	1.1	Threats of type 1 UEs
		1.2	Threats from type 2 to type 1 UEs and to linked IP networks
		1.3	Threats from type 3 to type 1 UEs and to linked IP networks
2	eNodeB	2.1	Threats from rogue eNodeBs
3	EPC	3.1	Threats caused by insider attack from EPC
4	IP network	4.1	Threats bypassing the transfer ciphering (VPN gateway)
		4.2	Threats from external app server