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Content for  TS 23.272  Word version:  19.0.0

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1 Scope  2 References  3 Definitions and abbreviations  3.1 Definitions  3.2 Abbreviations 
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1  Scope  p. 8

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. The scope of this document includes the architecture enhancements for functionality to enable fallback from E-UTRAN access to UTRAN/GERAN CS domain access and to CDMA 1x RTT CS domain access, and functionality to reuse of voice and other CS-domain services (e.g. CS UDI video / LCS / USSD) by reuse of the CS domain. The functionality specified to support SMS over SGs does not trigger any CS Fallback to UTRAN/GERAN. The functionality specified to support SMS over S102 does not trigger any CS Fallback to CDMA 1xRTT CS domain.
In addition this specification includes an SMS in MME architecture option for SMS services only. This functionality does not trigger any CS Fallback and does not require SGs.
The architecture enhancements to support CS fallback to CDMA 1x RTT CS domain access for UEs with single and dual receiver configurations are specified in Annex B.
In this Release of the specification no mechanisms are specified to support CS Fallback to both UTRAN/GERAN and CDMA 1xRTT in the same PLMN. So, even when a UE has the capability to support both CS Fallback to UTRAN/GERAN CS domain and CS Fallback to CDMA 1xRTT CS domain in a given PLMN, the PLMN implements only one of the two.
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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 23.401: "GPRS Enhancements for E-UTRAN Access".
[3]
TS 23.060: "General Packet Radio Service (GPRS); Service description; Stage 2".
[4]
TS 44.018: "Mobile radio interface layer 3 specification Radio Resource Control (RRC) protocol".
[5]
TS 23.018: "Basic call handling; Technical realization".
[6]
TS 48.008: "MSC-BSS interface layer 3 specification; Protocol specification".
[7]
TS 25.331: "Radio Resource Control (RRC); Protocol specification".
[8]
TS 23.271: "Functional stage 2 description of Location Services (LCS)".
[9]
Open Mobile Alliance, OMA AD SUPL: "Secure User Plane Location Architecture", http://www.openmobilealliance.org.
[10]
TS 23.090: "Unstructured Supplementary Service Data (USSD); Stage 2".
[11]  Void.
[12]
TS 44.060: "MS-BSS interface; RLC/MAC protocol ".
[13]
TS 24.010: "Supplementary services specification; General aspects".
[14]
TS 23.040: "Technical realization of the Short Message Service (SMS)".
[15]
TS 23.204: "Short Message Service (SMS) over generic 3GPP Internet Protocol (IP) access".
[16]
3GPP2 A.S0008-C: "Interoperability Specification (IOS) for High Rate Packet Data (HRPD) Radio Access Network Interfaces with Session Control in the Access Network".
[17]
3GPP2 A.S0009-C: "Interoperability Specification (IOS) for High Rate Packet Data (HRPD) Radio Access Network Interfaces with Session Control in the Packet Control Function".
[18]
3GPP2 A.S0013-C: "Interoperability Specification (IOS) for cdma2000 Access Network Interfaces - part 3 Features".
[19]
TR 36.938: "Improved Network Controlled Mobility between E-UTRAN and 3GPP2/Mobile WiMAX Radio Technologies".
[20]
TS 23.216: "Single Radio Voice Call Continuity (SRVCC); Stage 2".
[21]
TS 24.008: "Mobile radio interface Layer 3 specification; Core network protocols; Stage 3".
[22]
3GPP2 X.S0042-0: "Voice Call Continuity between IMS and Circuit Switched System".
[23]
TS 23.236: "Intra-domain connection of Radio Access Network (RAN) nodes to multiple Core Network (CN) nodes".
[24]
TS 43.055: "Radio Access Network; Dual Transfer Mode (DTM); Stage 2".
[25]
TS 23.292: "IMS Centralised Services (ICS); Stage 2".
[26]
TS 23.221: "Architectural Requirements".
[27]
TS 23.402: "Architecture enhancements for non-3GPP accesses".
[28]
TS 24.011: "Point-to-Point (PP) Short Message Service (SMS) support on mobile radio interface".
[29]
TS 25.413: "UTRAN Iu interface Radio Access Network Application Part (RANAP) signalling".
[30]
TS 48.018: "General Packet Radio Service (GPRS); BSS GPRS Protocol (BSSGP)".
[31]
TS 23.082: "Call Forwarding (CF) supplementary services; Stage 2".
[32]
3GPP2 C.S0005-A: "Upper Layer (Layer 3) Signaling Standard for cdma2000 Spread Spectrum Systems - Release A, Addendum 2".
[33]
TS 36.331: "Evolved Universal Terrestrial Radio Access (E-UTRA) Radio Resource Control (RRC)".
[34]
TS 24.301: "Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS); Stage 3".
[35]
TS 36.413: "S1 Application Protocol (S1AP)".
[36]
TS 22.153: "Multimedia Priority Services".
[37]
TS 22.067: "enhanced Multi Level Precedence and Pre emption service (eMLPP) - Stage 1".
[38]
TS 22.011: "Service accessibility".
[39]
3GPP2 A.S0008-C:: "Interoperability Specification (IOS) for High Rate Packet Data (HRPD) Radio Access Network Interfaces with Session Control in the Access Network".
[40]
3GPP2 A.S0009-C: "Interoperability Specification (IOS) for High Rate Packet Data (HRPD) Radio Access Network Interfaces with Session Control in the Packet Control Function".
[41]
TS 23.146: "Technical realization of facsimile group 3 non-transparent".
[42]
TS 23.251: "Network sharing; Architecture and functional description".
[43]
TS 29.338: "Diameter based protocols to support of SMS capable MMEs".
[44]
TS 29.118: "Mobility Management Entity (MME) -Visitor Location Register (VLR) SGs interface specification".
[45]
TS 29.274: "Evolved General Packet Radio Service (GPRS) Tunnelling Protocol for Control plane (GTPv2-C)".
[46]
Telecommunications Industry Association, TIA-917: "Wireless Priority Service Enhancements for CDMA Systems".
[47]
TR 22.952: "Priority service guide".
[48]
TS 23.682: "Architecture enhancements to facilitate communications with packet data networks and applications".
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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 apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
1xCS:
The 3GPP2 legacy circuit Switched signalling system as defined in 3GPP2 X.S0042-0 [22].
CSMT flag:
A flag in LA update request message used in CS fallback for MT call to avoid missing paging in roaming retry.
CSMO flag:
A flag in CM Service Request and LA Update request message used in CS fallback for MO calls.
Service User:
See TS 22.153.
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3.2  Abbreviations  p. 10

For the purposes of the present document, the abbreviations given in TR 21.905 apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
1xCS IWS
Circuit Switched fallback Interworking solution Function for 3GPP2 1xCS.
CSMT
Circuit Switched fallback Mobile Terminated call.
CSMO
Circuit Switched fallback Mobile Originated call.
DRX
Discontinuous Reception
eMLPP
enhanced Multi Level Precedence and Pre emption
ICS
IMS Centralised Services
MNRF
Mobile Station Not Reachable Flag
MNRF-MME
Mobile Not Reachable Flag in MME for SMS
MPS
Multimedia Priority Service
MTRF
Mobile Terminating Roaming Forwarding
MWD
Message Waiting Data
NAM
Network Access Mode
NEAF
Non-EPS Alert Flag.
PSM
Power Saving Mode
SRVCC
Single Radio Voice Call Continuity
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