TR 23.840
Study into Routeing of MT-SMs via the HPLMN
V7.1.0 (Wzip)
2007/03 22 p.
- Rapporteur:
- Mr. Russell, Nick
BlackBerry UK Limited
full Table of Contents for TR 23.840 Word version: 7.1.0
1 Scope p. 5
The present document provides a study into the current core network architecture for inter-PLMN short message delivery and provides a study into how such an architecture can be improved for the modern day. Wherever possible, backwards compatibility is maintained and impacts are only upon the home network of the destined subscriber.
2 References p. 5
3 Definitions, symbols and abbreviations p. 5
3.1 Definitions p. 5
3.2 Abbreviations p. 6
4 Analysis of current architecture p. 6
4.1 Introduction p. 6
4.2 Current architecture p. 6
4.3 Limitations and drawbacks of the current architecture p. 8
4.3.1 Receiving MS roaming in PLMN inaccessible to Originating MS's HPLMN p. 8
4.3.2 Effects of Mobile Number Portability p. 8
4.3.3 Misuse of SM delivery mechanism p. 9
4.3.4 Spam p. 10
4.3.5 Lawful Interception p. 10
4.3.6 Inability to offer certain value added services p. 10
4.4 Conclusion p. 10
5 Proposed solution p. 11
5.1 Introduction p. 11
5.2 Architecture and procedures p. 11
5.2.1 Discussion p. 11
5.2.2 Transparent Mode p. 11
5.2.3 Non-Transparent Mode p. 14
5.2.4 Analysis p. 16
5.3 New fields p. 16
5.3.1 MT-SMS Correlation ID p. 16
5.3.1.1 Discussion p. 16
5.3.1.2 Definition p. 16
5.4 Security enhancements p. 17
5.5 Charging enhancements p. 17
5.6 Supplementary Services enhancements p. 17
5.7 Other enhancements p. 18
6 Impacts on existing features and functionality p. 18
6.1 Introduction p. 18
6.2 MMS p. 18
6.3 SMS delivery reports p. 18
6.4 Supplementary Services p. 18
6.5 Charging p. 18
6.6 Concatenated SMs and SMs with UDH p. 18
6.7 Mobile Number Portability p. 19
6.8 Lawful Interception p. 19
6.9 MAP p. 19
6.10 Sub-System Numbers p. 19
6.11 Setting of MWI in the HLR p. 19
7 Conclusion and recommendations p. 20
$ Change history p. 22
