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

Table 1

PS-LTE specific functionalities and corresponding 3GPP documents (TS, technical specification; TR, technical report).

Functionality	Abbreviation	Requirements (function/security)	Architecture	Security issues
Group communication system enablers	GCSE	TS 22.468	TR 23.768	TS 33.888
Proximity-based services	ProSe	TS 22.803	TR 23.703	TS 33.303
		TS 22.278		TS 33.833
				TS 33.843
Isolated E-UTRAN operation for public security	IOPS	TS 22.346	—	TS 33.897
		TS 22.897
Mission-critical push-to-talk	MCPTT	TS 22.179	TR 23.779	TS 33.179
		TS 22.280		TS 33.879
				TS 22.280