Content for TR 23.842 Word version: 11.0.0
5 Architecture Requirements
6 Architecture Alternatives
6A Distribution of location information within the IMS
7 Conclusions
A Analysis on the Operator Dependent Location Information
$ Change history
5 Architecture Requirements p. 9
5.1 General p. 9
5.2 High Level Requirements p. 9
5.3 Location Characteristics Requirements p. 9
5.4 Overview of IMS Functional Entities Requiring Location p. 10
6 Architecture Alternatives p. 11
6.1 HSS based NPLI retrieval based on existing mechanisms p. 11
6.1.0 General p. 11
6.1.1 NPLI provision for MT call based on HSS interrogation p. 12
6.1.2 NPLI provision during IMS emergency registration p. 13
6.2 Enhanced PS domain location reporting p. 14
6.2.1 Signalling Flow for the Enhanced PS Domain Location Reporting p. 15
6.2.1a Using GTP-U Messages for Enhanced PS Domain Location Reporting p. 16
6.3 LCS based NPLI provision from MME to GMLC p. 17
6.3.1 Overview p. 17
6.3.2 Procedure between GMLC and Serving Nodes p. 18
6.3.3 Pre-establish connection between GMLC and serving node p. 19
6.3.4 Procedures for localized call routing p. 20
6.4 NPLI provision using EPS and PCC Framework p. 23
6.4.0 General p. 23
6.4.1 NPLI provision at session establishment p. 23
6.4.2 NPLI provision at session release p. 25
6.4.3 NPLI provision at session modification p. 27
6.4.4 Bearer Independent NPLI Fetch by P-CSCF p. 29
6.4.5 NPLI provision during IMS emergency call p. 30
6.5 Void
6.6 Correlation of IMS and IP-CAN CDRs p. 30
6.6.1 General p. 30
6.6.2 IP-CAN records all cell changes p. 31
6.6.3 IP-CAN records serving Cell-ID/CSGID for limited conditions p. 31
6.7 Void
6.8 NPLI via GTP-U request for non-Session based IMS p. 31
6.8.1 Using GTP S5/S8 p. 31
6.8.2 Using PMIP based S5/S8 p. 32
6.9 NPLI retrieval based on Intelligent Network exchange p. 32
6.9.1 ICS Mg origination p. 32
6.10 2-phase solution p. 32
6A Distribution of location information within the IMS p. 34
6A.1 Overview p. 34
6A.2 Example call flows p. 35
6A.2.1 Session Establishment/Modification - Mobile origination (1) p. 35
6A.2.2 Session Establishment/Modification - Mobile origination (2) p. 36
6A.2.3 Session Establishment/Modification - Mobile termination p. 37
6A.2.4 I2 ICS origination p. 38
6A.2.5 I1 ICS origination p. 39
6A.2.6 ICS Mg origination p. 40
6A.2.7 Session Release p. 40
6A.2.8 NPLI Distribution using HSS based approach p. 41
6A.2.9 I2 ICS termination p. 42
6A.2.10 ICS Mg termination p. 43
6A.3 Generation of the Geographical Identifier p. 44
7 Conclusions p. 45
A Analysis on the Operator Dependent Location Information p. 50
$ Change history p. 52
