Content for TS 24.292 Word version: 17.0.0
1 Scope p. 8
IP Multimedia (IM) Core Network (CN) subsystem centralized services (ICS) allow for the delivery of consistent IMS services to the user regardless of the attached access type (e.g. CS domain access or IP-CAN).
The present document provides the protocol details for the realization of ICS based on the Session Initiation protocol (SIP), the Session Description Protocol (SDP), the I1 protocol, and the protocols of the 3GPP Circuit-Switched (CS) domain (e.g. CAP, MAP, ISUP, BICC and the NAS call control protocol for the CS access).
This document makes no ICS specific enhancements to SIP or SDP beyond those specified in TS 24.229.
The present document is applicable to User Equipment (UEs), MSC Servers and Application Servers (AS) providing ICS capabilities.
2 References p. 8
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
TS 22.173: "IP Multimedia Core Network Subsystem (IMS) Multimedia Telephony Service and supplementary services".
[3]
TS 23.002: "Network architecture".
[4]
TS 23.003: "Numbering, addressing and identification".
[4A]
TS 23.153: "Out of band transcoder control; Stage 2".
[5]
TS 23.228: "IP multimedia subsystem; Stage 2".
[6]
TS 23.292: "IP Multimedia Subsystem (IMS) Centralized Services; Stage 2".
[7]
TS 24.008: "Mobile radio interface layer 3 specification; Core Network protocols; Stage 3".
[8]
TS 24.147: "Conferencing using the IP Multimedia (IM) Core Network (CN) subsystem; Stage 3".
[8A]
TS 24.167: "3GPP IMS Management Object (MO); Stage 3".
[9]
TS 24.173: "IMS Multimedia telephony service and supplementary services; Stage 3".
[10]
TS 24.228: Release 5: "Signalling flows for the IP multimedia call control based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3".
[11]
TS 24.229: "IP multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3".
[11A]
TS 24.301: "Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS); Stage 3".
[11B]
TS 24.294: "IMS Centralized Services (ICS) Protocol via I1 Interface; Stage 3".
[12]
TS 24.604: "Communication Diversion (CDIV) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification".
[13]
TS 24.605: "Conference (CONF) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification".
[14]
TS 24.607: "Originating Identification Presentation (OIP) and Originating Identification Restriction (OIR) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification".
[15]
TS 24.608: "Terminating Identification Presentation (TIP) and Terminating Identification Restriction (TIR) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification".
[16]
TS 24.610: "Communication HOLD (HOLD) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification".
[17]
TS 24.611: "Anonymous Communication Rejection (ACR) and Communication Barring (CB); using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification".
[18]
TS 24.615: "Communication Waiting (CW) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol Specification".
[19]
TS 24.629: "Explicit Communication Transfer (ECT) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification".
[20]
TS 29.002: "Mobile Application Part (MAP) specification".
[21]
TS 29.078: "Customised Applications for Mobile network Enhanced Logic (CAMEL) Phase 4; CAMEL Application Part (CAP) specification".
[22]
TS 29.163: "Interworking between the IP Multimedia (IM) Core Network (CN) subsystem and Circuit Switched (CS) networks".
[23]
TS 29.228: "IP Multimedia (IM) Subsystem Cx and Dx Interfaces; Signalling flows and message contents".
[24]
TS 29.292: "Interworking between the IP Multimedia (IM) Core Network (CN) subsystem and MSC Server for IMS Centralized Services (ICS)".
[25]
TS 29.328: "IP Multimedia Subsystem (IMS) Sh interface; Signalling flows and message contents".
[26]
TS 29.329: "Sh interface based on the Diameter protocol; Protocol details".
[27]
TS 32.260: "Telecommunication management; Charging management; IP Multimedia Subsystem (IMS) charging".
[28]
ITU-T Recommendations Q.761 to Q.764 (2000): "Specifications of Signalling System No.7 ISDN User Part (ISUP)".
[29]
ITU-T Recommendations Q.1902.1 to Q.1902.6 (07/2001): "Bearer Independent Call Control".
[30]
RFC 3263 (June 2002): " Session Initiation Protocol (SIP): Locating SIP Servers".
[31]
RFC 3264 (June 2002): "An Offer/Answer Model with Session Description Protocol (SDP)".
[32]
RFC 6665 (July 2012): "SIP-Specific Event Notification".
[33]
RFC 3680 (March 2004): "A Session Initiation Protocol (SIP) Event Package for Registrations".
[34]
RFC 3840 (August 2004): "Indicating User Agent Capabilities in the Session Initiation Protocol (SIP)".
[35]
RFC 5628 (October 2009): "Registration Event Package Extension for Session Initiation Protocol (SIP) Globally Routable User Agent URIs (GRUUs)".
[35A]
RFC 3841 (August 2004): "Caller Preferences for the Session Initiation Protocol (SIP)".
[36]
RFC 7195 (May 2014): "Session Description Protocol (SDP) Extension for Setting Audio and Video Media Streams over Circuit-Switched Bearers in the Public Switched Telephone Network (PSTN)".
[37]
3GPP2 C.S0001-D: "Introduction to cdma2000 Spread Spectrum Systems - Revision D".
[38]
RFC 7462 (March 2015): "URNs for the Alert-Info Header Field of the Session Initiation Protocol (SIP)".
[39]
RFC 7006 (September 2013): "Miscellaneous Capabilities Negotiation in the Session Description Protocol (SDP)".
[40]
RFC 5939 (September 2010): "Session Description Protocol (SDP) Capability Negotiation".
[41]
RFC 6871 (February 2013): "SDP media capabilities Negotiation".
[42]
RFC 3966 (December 2004): "The tel URI for Telephone Numbers".
[43]
TS 24.286: "IP Multimedia (IM) Core Network (CN) subsystem Centralised Services(ICS); Management Object (MO)".
[44]
ITU-T Recommendation E.164: "The international public telecommunication numbering plan".
[45]
RFC 3261 (June 2002): "SIP: Session Initiation Protocol".
[46]
TS 44.018: "Mobile radio interface layer 3 specification; Radio Resource Control (RRC) protocol".
[47]
TS 24.642: "Completion of Communications to Busy Subscriber (CCBS) and Completion of Communications by No Reply (CCNR) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification".
[48]
RFC 6809 (November 2012): "Mechanism to Indicate Support of Features and Capabilities in the Session Initiation Protocol (SIP)".
[49]
RFC 5626 (October 2009): "Managing Client-Initiated Connections in the Session Initiation Protocol (SIP)".
[50]
RFC 7549 (May 2015): "3GPP SIP URI Inter-Operator Traffic Leg Parameter".
3 Definitions and abbreviations p. 10
3.1 Definitions p. 10
For the purposes of the present document, the terms and definitions given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
CS call:
A connection established via the circuit switched domain in accordance with the related procedures e.g. such as described in TS 24.008, 3GPP2 C.S0001-D [37] and of which the established bearer is only used within a CS connection but not used as a media stream for a related IM CN subsystem session.
CS media:
A media stream established through CS signalling (e.g. TS 24.008, 3GPP2 C.S0001-D [37]) and transported through the PSTN with a session description defined by RFC 7195.
IMS Voice over PS Session (IMSVoPS) indicator:
An indication from the network indicating that IMS voice over PS session(s) are or are not supported for a specific RAT. The indication is provided by the network to the UE at each NAS registration. When the UE is in S1-mode, the IMSVoPS indicator defined in TS 24.301 applies. When the UE is in Iu-mode or A/Gb mode, the IMSVoPS indicator defined in TS 24.008 applies.
NAS combined attach or combined TA update:
A NAS attach procedure where the EPS attach type is set to combined EPS/IMSI attach or a NAS tracking area update procedure where the EPS update type is set to "combined TA/LA updating with IMSI attach" or "combined TA/LA updating". See also TS 24.301.
Successful NAS combined attach or combined TA update:
The successful outcome of a NAS combined attach procedure where for the NAS attach procedure the EPS attach result is "combined EPS/IMSI attach" without "SMS only" indication or where for the NAS tracking area update procedure the EPS update result is "combined TA/LA updated" or "combined TA/LA updated and ISR activated" without "SMS only" indication. See also TS 24.301.
Failure to access the CS domain:
In this specification, failure to access the CS domain includes not receiving a location updating area accept message as specified in TS 24.008) and the NAS sublayer not receiving an indication of successful NAS combined attach or combined TA update.
PSI DN:
Is a digit string that conforms to ITU-T Recommendation E.164 [44].
UE in S1-mode:
In this specification, a UE in this mode perform an EPS attach procedure with a MME, as defined in TS 24.301.
UE in Iu-mode or UE in A/Gb mode:
In this specification, a UE in one of these modes performs a GPRS attach procedure with a SGSN, as defined in TS 24.008.
SCC AS enhanced for I1:
SCC AS supporting I1 as defined in TS 24.294.
For the purposes of the present document, the following terms and definitions given in TS 23.292 apply:
ICS UE
Correlation MSISDN
MSC Server enhanced for ICS
SCC AS
For the purposes of the present document, the following terms and definitions given in TS 24.629 apply:
transferee
transferor
transfer target
For the purposes of the present document, the following terms and definitions given in TS 23.228 apply:
Public Service Identity (PSI)
For the purposes of the present document, the following terms and definitions given in TS 24.229 apply:
Registration expiration interval
For the purposes of the present document, the following terms and definitions given in TS 23.003 apply:
CS Domain Routeing Number (CSRN)
IP Multimedia Routeing Number (IMRN)
For the purposes of the present document, the following terms and definitions given in TS 24.301 apply:
CS fallback capable UE
EPS attach result
EPS attach type
EPS update result
EPS update type
Persistent EPS bearer context
TA
For the purposes of the present document, the following terms and definitions given in TS 24.008 apply:
routing area (RA)
For the purposes of the present document, the following terms and definitions given in TS 44.018 apply:
dual transfer mode (DTM)
3.2 Abbreviations p. 12
For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
ADS
Access Domain Selection
AS
Application Server
BICC
Bearer Independent Call Control
CAMEL
Customised Applications for Mobile network Enhanced Logic
CB
Communication Barring
CCBS
Completion of Communication to Busy Subscriber
CCNL
Completion of Communications on Not Logged In
CCNR
Completion of Communications on No Reply
CD
Communication Deflection
CDIV
Communication DIVersion
CFNL
Communication Forwarding on Not Logged-in
CFNR
Communication Forwarding No Reply
CFNRc
Communication Forwarding on subscriber Not Reachable
CFU
Communication Forwarding Unconditional
CGI
Cell Global Identifier
CN
Core Network
CSFB
CS Fall Back
CSRN
CS domain Routing Number
CW
Communication Waiting
DN
Directory Number
ECT
Explicit Communication Transfer
ICS
IMS Centralized Services
IMSVoPS
IMS Voice over PS Session
IUA
ICS User Agent
HLR
Home Location Register
HSS
Home Subscriber Server
IM
IP Multimedia
IMRN
IP Multimedia Routeing Number
MSC
Mobile Switching Center
NAS
Non Access Stratum
OIP
Originating Identification Presentation
OIR
Originating Identification Restriction
SCC AS
Service Centralization and Continuity Application Server
T-ADS
Terminating ADS
TA
Tracking Area
TIP
Terminating Identification Presentation
TIR
Terminating Identification Restriction
UA
User Agent
UE
User Equipment
URI
Universal Resource Identifier
