TS 23.272
SA2
★
CSFB – Circuit Switched FallBack in EPS
use "3GPP‑Page" to get the Word version
use "ETSI‑search" to get the PDF version
for a better overview, the Table of Contents (ToC) is reproduced
use "ETSI‑search" to get the PDF version
for a better overview, the Table of Contents (ToC) is reproduced
V15.0.0 (PDF)
2017/12 107 p.
V14.2.0
2017/12 107 p.
V13.6.0
2017/12 107 p.
V12.6.0
2015/06 103 p.
V11.10.0
2015/06 102 p.
V10.15.0
2014/06 86 p.
V9.15.0
2013/09 76 p.
V8.12.0
2012/06 59 p.
WI Acronym: SAES-CSFB
Rapporteur: Ms. Demel, Sabine Deutsche Telekom AG
Rapporteur: Ms. Demel, Sabine Deutsche Telekom AG
This document defines the Stage 2 architecture and specification for the CS Fallback and for SMS over SGs for EPS or CS Fallback and SMS over S102.
full Table of Contents for TS 23.272 Word version: 15.0.0
1 Scope
2 References
3 Definitions and abbreviations
4 Overall Description
5 Mobility Management
6 Mobile Originating Call
7 Mobile Terminating Call
8 Other CS Services
B [N] CS Fallback to 1xRTT
C [N] SMS in MME
D Change history
1 Scope Word-p. 8
2 References
3 Definitions and abbreviations Word-p. 10
4 Overall Description Word-p. 11
4.1 General Considerations
4.2 Reference Architecture
4.6a Interaction with IMS Emergency session [R9] Word-p. 17
4.7 CSFB Priority Call Handling [R10]
4.8 CS services handling in specific cases [R10] Word-p. 18
5 Mobility Management
4.2.1 Reference points Word-p. 12
4.3 Functional entities
4.3.1 UE
4.3.2 MME
4.3.3 MSC Word-p. 14
4.3.4 E-UTRAN
4.3.5 SGSN Word-p. 15
4.3.6 BSS
4.3.7 RNS [R10]
4.4 Control plane Word-p. 16
4.5 Co-existence with IMS services
4.6 Emergency Calls
4.3.2 MME
4.3.3 MSC Word-p. 14
4.3.4 E-UTRAN
4.3.5 SGSN Word-p. 15
4.3.6 BSS
4.3.7 RNS [R10]
4.6a Interaction with IMS Emergency session [R9] Word-p. 17
4.7 CSFB Priority Call Handling [R10]
4.8 CS services handling in specific cases [R10] Word-p. 18
5.1 General
5.1A TAI list and LAI allocation [R9]
5.2 Attach procedure Word-p. 19
5.3 Detach procedure Word-p. 21
6 Mobile Originating Call
5.2 Attach procedure Word-p. 19
5.3 Detach procedure Word-p. 21
5.3.1 UE-initiated Detach procedure
5.3.1A UE-initiated Detach procedure for GERAN/UTRAN with ISR activated Word-p. 22
5.3.2 MME-initiated Detach procedure
5.3.2A SGSN-initiated Detach procedure with ISR activated Word-p. 23
5.3.3 HSS-initiated Detach procedure
5.3.4 Administration of the MME - MSC/VLR Association
5.4 TA/LA Update procedure Word-p. 24
5.4.0 General
5.4.1 Combined TA/LA Update Procedure
5.4.2 Periodic TA and LA Update Procedure Word-p. 26
5.4.3 Non-EPS Alert procedure
5.4.4 Void
5.5 Idle Mode Signalling Reduction Word-p. 27
5.6 Mobility Management for SMS over SGs only UEs Word-p. 28
5.7 Access to CS services after selecting a non-3GPP access [R11]
5.4.1 Combined TA/LA Update Procedure
5.4.2 Periodic TA and LA Update Procedure Word-p. 26
5.4.3 Non-EPS Alert procedure
5.4.4 Void
6.1 General
6.2 Mobile Originating call in Active Mode - PS HO supported Word-p. 29
6.3 Mobile Originating call in Active Mode - No PS HO support Word-p. 31
6.4 Mobile Originating call in Idle Mode Word-p. 35
6.5 Returning back to E-UTRAN Word-p. 36
6.6 Mobile Originated or Mobile terminated call rejected by the MME [R9] Word-p. 37
7 Mobile Terminating Call Word-p. 38
7.1 General
7.2 Mobile Terminating call in idle mode
7.3 Mobile Terminating call in Active Mode - PS HO supported Word-p. 41
7.4 Mobile Terminating call in Active Mode - No PS HO support Word-p. 44
7.5 Roaming Retry for CS fallback Word-p. 48
7.5a Roaming Forwarding for CS fallback [R10] Word-p. 50
7.5b Coexistence of Roaming Retry and Roaming Forwarding for CS fallback [R10] Word-p. 52
7.6 Returning back to E-UTRAN
7.7 Interaction with ISR
8 Other CS Services
7.7.1 Void
7.7.2 Mobile Terminating Call when ISR is active and SGs is active between MSC/VLR and MME Word-p. 53
7.7.3 Void
7.8 Mobile Terminating Call when SGs is not active Word-p. 54
8.1 General
8.2 Short Message Service (SMS)
A Void
B (Normative) CS Fallback to 1xRTT Word-p. 71
8.2.1 General
8.2.2 Mobile originating SMS in Idle Mode
8.2.3 Mobile originating SMS in Active Mode Word-p. 56
8.2.3a Multiple Mobile originating SMSs
8.2.4 Mobile terminating SMS in idle mode
8.2.4a Mobile Terminated SMS in extended Idle mode DRX and in PSM [R13] Word-p. 57
8.2.5c Unsuccessful Mobile terminating SMS delivery attempt
8.2.5d Non-SMS Mobile terminating activity during SMS delivery
8.2.5e Non-SMS Mobile originating activity during SMS delivery Word-p. 62
8.2.5f Mobile Terminating SMS when ISR is active and SGs is active between MSC/VLR and MME
8.2.6 Co-Existence with SMS over generic 3GPP IP access
8.3 Location Services (LCS)
8.2.3 Mobile originating SMS in Active Mode Word-p. 56
8.2.3a Multiple Mobile originating SMSs
8.2.4 Mobile terminating SMS in idle mode
8.2.4a Mobile Terminated SMS in extended Idle mode DRX and in PSM [R13] Word-p. 57
8.2.4a.1 General
8.2.4a.2 Procedure for Deployment Option1 and Deployment Option 2 Word-p. 58
8.2.4a.3 Procedure for Deployment Option 3 Word-p. 60
8.2.5 Mobile terminating SMS in Active Mode Word-p. 61
8.2.5a Multiple Mobile terminating SMSs
8.2.5b Simultaneous Mobile terminating and Mobile originating SMSs
8.2.5c Unsuccessful Mobile terminating SMS delivery attempt
8.2.5d Non-SMS Mobile terminating activity during SMS delivery
8.2.5e Non-SMS Mobile originating activity during SMS delivery Word-p. 62
8.2.5f Mobile Terminating SMS when ISR is active and SGs is active between MSC/VLR and MME
8.2.6 Co-Existence with SMS over generic 3GPP IP access
8.3.1 MO-LR procedure
8.4 Other CS Services
8.3.1.1 General [R10]
8.3.1.2 MO-LR in Active Mode with IMS VoIP session - PS HO supported [R10] Word-p. 63
8.3.1.3 MO-LR in Active Mode with IMS VoIP session - No PS HO supported [R10] Word-p. 64
8.3.2 MT-LR procedure
8.3.2.1 MT-LR procedure if UE is not in IMS VoIP session [R10]
8.3.2.2 MT-LR procedure while UE is in IMS VoIP session [R10] Word-p. 65
8.3.3 NI-LR procedure Word-p. 66
8.3.4 Returning back to E-UTRAN
8.3.5 Co-Existence with Other Location Services
8.4.0 General [R9]
8.4.1 Mobile-Initiated CS Services
8.4.1.1 Mobile-Initiated CS Services if UE is not in IMS VoIP session [R11]
8.4.1.2 Mobile-Initiated CS Services while UE is in IMS VoIP session [R11] Word-p. 67
8.4.2 NW-Initiated CS Services
8.4.2.1 NW-Initiated CS Services if UE is not in IMS VoIP session [R11]
8.4.2.2 NW-Initiated CS Services while UE is in IMS VoIP session [R11] Word-p. 68
8.4.3 Returning back to E-UTRAN Word-p. 69
B.1 Overall Description
C (Normative) SMS in MME [R11]
B.1.1 General Considerations
B.1.2 Reference Architecture
B.2 Procedures Word-p. 74
B.1.2.1 Reference points Word-p. 72
B.1.3 Functional entities
B.1.4 Co-existence with IMS services
B.1.5 CSFB Priority Call Handling [R10]
B.2.1 Mobility Management
B.3 CS Fallback for UEs with dual Rx configuration [R9]
B.2.1.1 1x RTT CS Pre-Registration over EPS Procedure
B.2.1.2 S102 Tunnel Redirection Word-p. 75
B.2.1.3 UE-initiated Detach Procedure [R9] Word-p. 76
B.2.2 Mobile Originating Call in Active Mode
B.2.2a Mobile Originating call in Idle Mode Word-p. 78
B.2.3 Mobile Terminating Call
B.2.3a Enhanced CS fallback to 1xRTT Procedure [R9] Word-p. 80
B.2.1.2 S102 Tunnel Redirection Word-p. 75
B.2.1.3 UE-initiated Detach Procedure [R9] Word-p. 76
B.2.3a.1 General
B.2.3a.2 Mobile Originating Call without concurrent PS handover, or with concurrent non-optimised PS handover or optimised idle-mode PS handover Word-p. 81
B.2.3a.3 Mobile Originating Call with concurrent optimised PS handover Word-p. 84
B.2.3a.4 Mobile Terminating Call without PS handover, or with concurrent non-optimised PS handover or optimised idle-mode PS handover Word-p. 85
B.2.3a.5 Mobile Terminating Call with concurrent optimised PS handover Word-p. 86
B.2.3a.6 Interaction between enhanced CS Fallback to 1xRTT and optimised PS handover Word-p. 87
B.2.3b Mobile Originated or Mobile terminated call rejected by the MME [R9]
B.2.4 Short Message Service (SMS) Word-p. 89
B.2.5 Emergency Calls Word-p. 91
C.1 General
C.2 Architecture
C.3 Reference Points Word-p. 94
C.4 Network Entities
C.5 Roaming considerations Word-p. 96
C.6 Unsuccessful Mobile-Terminated SMS Transfer
C.7 Information storage Word-p. 97
C.8 Registration of MME for SMS Word-p. 98
D Change history Word-p. 101
