TR 29.863
CT3
★
Feasibility Study
for the Multimedia Inter-Working
between the IP Multimedia Core Network (CN) Subsystem (IMS)
and Circuit Switched (CS) Networks
use "3GPP‑Page" to get the Word version
for a better overview, the Table of Contents (ToC) is reproduced
for a better overview, the Table of Contents (ToC) is reproduced
V8.2.0 (Wzip)
2008/03 68 p.
V7.2.0
2007/06 58 p.
Rapporteur: Mr. Holm, Jan
This TR provides a feasibility study for the interworking of multimedia calls between the IP Multimedia CN Subsystem and CS networks (i.e. PSTN, ISDN and GSM/UMTS CS networks).
This TR studies and outlines different solutions and functionality required within the MGW to deliver the user plane aspects between IM CN subsystems and CS networks for support of basic multimedia calls. It also outlines the solutions and functionality required within the MGCF and SGW to deliver the control plane aspects between IM CN subsystems and CS networks to support basic multimedia calls.
This TR also studies the MONA interworking impacts, and which parts of MONA are feasible, or even possible, to interwork.
The user plane interworking necessary to cover the basic multimedia calls is also outlined and studied.
The different aspects studied for the different scenarios should encompass the transport protocol, transcoding and signalling issues for negotiation and mapping of bearer capabilities and QoS information.
full Table of Contents for TR 29.863 Word version: 8.2.0
1 Scope
2 References
3 Definitions and abbreviations
4 Basic Multimedia calls inter-working between the IMS and CS Networks scenarios
5 Control plane inter-working
6 User plane interworking
7 MGCF and IM-MGW interactions
8 Conclusions and recommendations
A Change history
1 Scope Word-p. 7
2 References
3 Definitions and abbreviations Word-p. 8
4 Basic Multimedia calls inter-working between the IMS and CS Networks scenarios
4.1 Overview of Relevant CS-Domain Protocols
4.2 Overview of Relevant PS-Domain Protocols Word-p. 10
5 Control plane inter-working Word-p. 11
5.1 General
5.2 Functionalities required in the MGCF for multimedia calls support 
5.3 IM CN subsystem originated session
6 User plane interworking Word-p. 40
7 MGCF and IM-MGW interactions
5.3 IM CN subsystem originated session
5.3.1 Preconditions used at IMS side
5.4 CS network originated session Word-p. 23
5.3.1.1 Interactions between H.245 or MONA and SIP/SDP
5.3.1.2 Early media at the CS side through-connected Word-p. 13
5.3.1.3 Early media at the CS side not through-connected Word-p. 14
5.3.2 Preconditions not used at IMS side Word-p. 17
5.4.1 Interactions between SIP/SDP and H.245 or MONA
5.5 Service change Word-p. 33
5.4.1.1 Normal Call setup
5.4.1.2 Call setup if multimedia call can not be recognized in an unambiguous manner Word-p. 24
5.4.2 Preconditions used by IMS terminal
5.4.2.1 Early media at the CS side through-connected
5.4.2.2 Early media at the CS side not through-connected Word-p. 25
5.4.3 Preconditions not used by IMS terminal Word-p. 28
5.4.3.1 Early media at the CS side through-connected
5.4.3.2 Early media at the CS side not through-connected Word-p. 29
5.4.4 CS originated - IM CN transit - CS terminated Word-p. 32
5.5.1 SCUDIF
5.5.2 Non-SCUDIF case (ISUP or BICC without SCUDIF) Word-p. 36
5.6 Call release Word-p. 38
5.5.2 Non-SCUDIF case (ISUP or BICC without SCUDIF) Word-p. 36
7.1 H.248 Context Model
8 Conclusions and recommendations Word-p. 67
A Change history Word-p. 68
7.1.1 Context model comparison Word-p. 42
7.2 H.245 Termination at the IM-MGW
7.2.1 Conveying H.245 related information over the Mn interface
7.3 H.245 Termination at the MGCF
7.2.1.1 Call establishment procedure
7.2.1.2 Procedure of H.245 indication message Word-p. 45
7.2.2 Conveying selected H.245 messages over the Mn interface
7.2.1.2.1 Function Not Understood / Function Not Supported message
7.2.1.2.2 Jitter Indication message Word-p. 46
7.2.1.2.3 User Input Indication message
7.2.1.3 Procedure of H.245 Command message Word-p. 47
7.2.1.4 Advantages of H.245 Termination at the IM-MGW and Conveying H.245 related information over the Mn interface
7.2.1.5 Mn procedure for ending the H.245 session Word-p. 49
7.2.2.1 Conclusion on this proposal Word-p. 50
7.2.3 Mn packages
7.3.1 Transport of H.245 messages between the MGCF and IM-MGW
7.4 Media Oriented Negotiation Acceleration (MONA)
7.3.1.1 Conveying H.245 messages over the Mn interface
7.3.1.2 Conveying H.245 messages using separate SCTP association
7.3.1.3 Comparison conclusion
7.3.2 Mn packages
7.3.3 Procedure for H.245 termination at the MGCF Word-p. 52
7.3.3.1 Call establishment procedure
7.3.3.2 Procedure of H.245 indication message Word-p. 54
7.3.3.2.1 Function Not Understood / Function Not Supported message
7.3.3.2.2 Jitter Indication message Word-p. 55
7.3.3.2.3 User Input Indication message
7.3.3.3 Procedure of H.245 Command message Word-p. 56
7.3.3.4 Advantages of H.245 termination at the MGCF Word-p. 58
7.3.3.5 Mn procedure for ending the H.245 session
7.3.3.2.2 Jitter Indication message Word-p. 55
7.3.3.2.3 User Input Indication message
7.4.1 Overview
7.4.2 Mn Interactions for MONA preference messages Word-p. 60
7.4.3 Mn Interactions for MONA MPCs Word-p. 63
7.4.4 Mn Interactions for MONA SPCs Word-p. 64
7.4.4.1 General
7.4.4.2 Transport from MGCF to IM-MGW
7.4.4.3 Transport from IM-MGW to MGCF Word-p. 65
7.4.5 Mn Interactions for fallback from MONA procedures to standard H.324 setup Word-p. 66
