Content for TR 33.838 Word version: 11.0.0
4 Definition of PUCI scope
5 Design principles and security requirements
6 Preventive measures
7 Interworking with non-IMS systems
8 PUCI architectural considerations
9 Solution alternatives
10 PUCI information exchange
11 Conclusions and recommendations
$ Change history
4 Definition of PUCI scope p. 7
5 Design principles and security requirements p. 8
6 Preventive measures p. 9
6.1 Introduction p. 9
6.2 Non-technical prevention measures p. 9
6.2.1 General p. 9
6.2.2 Legislation p. 9
6.2.3 Contractual agreements between operators and their customers p. 9
6.2.4 Contractual agreements between different operators (SLAs) p. 10
6.3 Technical prevention measures p. 10
7 Interworking with non-IMS systems p. 11
7.1 Background p. 11
8 PUCI architectural considerations p. 14
8.1 Overview p. 14
8.2 PUCI information storage p. 14
8.3 PUCI function invocation p. 14
8.4 Compatibility with IMS centralized services, SRVCC, and service continuity p. 15
9 Solution alternatives p. 15
10 PUCI information exchange p. 16
10.1 PUCI information type and structure p. 16
10.2 PUCI information signalling p. 17
10.3 PUCI function communication p. 19
10.4 PUCI user notification p. 20
11 Conclusions and recommendations p. 20
$ Change history p. 21
