1、 ETSI TS 123 221 V15.0.0 (2018-07) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Architectural requirements (3GPP TS 23.221 version 15.0.0 Release 15) TECHNICAL SPECIFICATION ETSI ETSI TS 123 221 V15.0.0 (2018-07)13GPP TS 23.221
2、version 15.0.0 Release 15Reference RTS/TSGS-0223221vf00 Keywords GSM,LTE,UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (
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9、15.0.0 (2018-07)23GPP TS 23.221 version 15.0.0 Release 15Intellectual Property Rights Essential patents IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members
10、 and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (https:/ipr.etsi.or
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13、d/or tradename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The
14、present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
15、 http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expressi
16、on of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 123 221 V15.0.0 (2018-07)33GPP TS 23.221 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 6g31 Scope 7g
17、32 References 7g33 Definitions, symbols and abbreviations . 8g33.1 Definitions 8g33.2 Symbols 9g33.3 Abbreviations . 9g34 3GPP system domains and subsystems 10g34.1 Allowed network and terminal configurations . 10g34.2 Circuit switched (CS) core network domain 10g34.2.1 Iu mode to Iu mode handover f
18、or circuit switched services . 10g34.2.2 A mode to Iu mode handover for CS services 11g34.2.3 General principles for use of CS-MGW resources . 11g34.2.4 Transcoder location. 11g34.3 Packet Switched (PS) core network domain . 11g34.4 IP Multimedia subsystem (IMS) 11g34.5 Cross Core Network Domain Req
19、uirements 11g34.6 UTRAN 12g34.7 GERAN 12g34.8 E-UTRAN 12g35 IP addressing 12g35.1 IP version issues . 12g35.2 Interoperability between IPv4 and IPv6 networks 12g35.2.1 IPv4/IPv6 Mobile connecting to IPv4 and IPv6 networks 13g35.2.2 IPv6 only Mobile connecting to IPv4 network . 13g35.2.3 IPv6 Mobile
20、connected to an IPv6 Device via an IPv4 network . 14g35.3 Address management . 14g35.4 IP addressing and routing for access to IM-subsystem services . 15g35.5 Simultaneous access to multiple services . 16g35.6 UE support of IPv6 . 17g35.7 IP addressing and routing for server/application 18g36 Mobili
21、ty management. 18g36.1 Introduction 18g36.2 Location management and mobility management concept overview . 18g36.2.1 Non-combined procedures 18g36.2.2 Use of combined procedures . 20g36.3 Description of the location management and mobility management concept - area concepts . 21g36.3.1 Introduction.
22、 21g36.3.2 Location areas . 21g36.3.3 Tracking and Routing areas 21g36.3.3a Support of Iu and A/Gb mode of operation in GERAN Cells 21g36.3.3a.1 Overview . 21g36.3.3a.2 Interface selection in GERAN Cells . 22g36.3.3a.2.1 Basic principles for MS controlled Cell/Mode selection/re-selection . 22g36.3.3
23、a.2.2 Basic principles for network controlled Mode selection/re-selection . 22g36.3.4 RAN internal areas 22g36.3.5 Relationship between the different areas 23g36.3.5a Restriction of subscribers access 24g36.3.6 Hierarchical tracking concept . 24g36.4 Relationship between MM and SM states for an UE 2
24、5g3ETSI ETSI TS 123 221 V15.0.0 (2018-07)43GPP TS 23.221 version 15.0.0 Release 156.5 Requirement in case of temporarily loss of coverage of packet UE . 25g36.6 MM functionality in different UE service states 25g36.7 The RRC state machine 26g36.8 Relationship between CS and PS service states and RRC
25、 state for an UE . 27g36.9 Service registration and location update . 28g36.9.1 Introduction. 28g36.9.2 Location area update . 28g36.9.3 Tracking and Routing area update 29g36.9.4 Combined updates 29g36.10 Paging initiated by CN . 29g36.11 Signalling connection establishment 29g36.11a CS Domain Sign
26、alling Requirements (in particular relating to handover) . 29g36.12 Relations between SRNS relocation and location registration . 30g36.13 Requirements on identifiers for UMTS and GSM 31g36.14 Use of MM system information . 32g36.15 Signalling procedures . 32g36.15.1 Idle mode procedures 32g36.15.1.
27、1 Location Area update 32g36.15.1.2 Routing Area Update. 34g36.15.1.2A Tracking Area Update . 34g36.15.1.3 Periodic registration towards both CN nodes without use of Gs or SGs . 34g36.15.1.4 Periodic registration with use of Gs or SGs 34g36.15.1.5 UE initiated combined detach procedure when using Gs
28、 or SGs 34g36.15.1.6 Forbidden LA/RA . 34g36.15.2 SRNS Relocation 34g36.16 RAN coordination 34g37 Call control . 35g37.1 General Aspects 35g37.2 Domain selection for mobile terminated calls from the PSTN/CS domain 35g37.2.1 Introduction. 35g37.2.2 Calls directed to the CS domain 36g37.2.3 Calls dire
29、cted to the IMS 36g37.2a Domain selection for UE originating sessions / calls . 36g37.2b Access Domain Selection for terminating sessions 38g37.2c Domain Selection for UE originating SMS 39g37.2d Domain selection decisions during ongoing sessions . 39g37.2e Selection of method for UE originating USS
30、D requests 40g37.3 Routing sessions from the IMS to the CS Domain . 40g38 Support of IM CN Subsystem services 40g38.1 Context activation and registration . 40g38.2 Location management 42g38.2.1 Registration concepts for a subscriber roaming into CS domain 42g38.3 IMS Emergency sessions 43g38.3.1 GPR
31、S/EPS considerations for UE recognized IMS Emergency Sessions 43g38.3.2 Emergency Calls in absence of UICC for GPRS/EPS Access 43g39 Efficient use of radio resource 43g3Annex A (informative): Guidance for CSFB and IMS enabled UE implementations in E-UTRAN . 45g3A.1 General . 45g3A.2 IMS PS Voice pre
32、ferred . 45g3A.2.1 EPS Attach . 45g3A.2.2 Combined EPS/IMSI attach . 46g3A.3 CS Voice preferred . 46g3A.4 IMS PS Voice only . 47g3A.5 CS Voice only 48g3ETSI ETSI TS 123 221 V15.0.0 (2018-07)53GPP TS 23.221 version 15.0.0 Release 15Annex B (informative): Guidance related to IPv4 address usage 50g3B.1
33、 General . 50g3B.2 Interworking aspects. 50g3B.2.1 Interworking scenario: UE assigned private IPv4 address . 50g3B.2.2 Use of Device triggering 50g3B.2.3 Specific APN use . 50g3Annex C (informative): Change history . 52g3History 53g3ETSI ETSI TS 123 221 V15.0.0 (2018-07)63GPP TS 23.221 version 15.0.
34、0 Release 15Foreword This Technical Specification has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the present docu
35、ment, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change cont
36、rol. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 123 221 V15.0.0 (2018-07)73GPP TS 23.221 version 15.0.0 Relea
37、se 151 Scope This document covers the architectural requirements for 3GPP systems based on UTRAN, E-UTRAN and Iu mode GERAN. In particular it details the high level requirements for the Circuit Switched (CS) Domain and the stage 2 procedures that span more than one domain/subsystem. The reference mo
38、del to which these procedures apply can be found within TS 23.002 1. In addition, A mode to Iu mode handover for CS services is addressed. Detailed architectural requirements within the subsystems are contained within the remainder of the 23 series of specifications e.g. the requirements for the Pac
39、ket Switched (PS) domain are contained within TS 23.060 2, TS 23.401 27 and the requirements for the Bearer Independent CS Core Network are contained in TS 23.20514. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present do
40、cument. - 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
41、 (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 3GPP TS 23.002: “Network Architecture“. 2 3GPP TS 23.060: “General Packet Radio Service (GPRS) Service description; Stage 2“. 3 3GPP TS 23.012
42、: “Location management procedures“. 5 3GPP TS 25.331: “Radio Resource Control (RRC) Protocol Specification“. 6 3GPP TS 25.301: “Radio interface protocol architecture“. 7 3GPP TS 25.303: “UE functions and inter-layer procedures in connected mode“. 8 3GPP TR 21.905: “3G Vocabulary“. 9 3GPP TS 25.413:
43、“UTRAN Iu interface RANAP signalling“. 10 3GPP TS 25.410: “UTRAN Iu Interface: General Aspects and Principles“. 11 3GPP TS 23.228: “IP Multimedia Subsystem Stage 2“. 12 3GPP TS 43.051: “GERAN Overall Description“. 13 3GPP TS 23.153: “Out of Band Transcoder Control - Stage 2“. 14 3GPP TS 23.205: “Bea
44、rer Independent CS Core Network Stage 2“. 15 3GPP TR 25.931: “UTRAN Functions, examples on signalling procedures“. 16 RFC 2766: “Network Address Translation - Protocol Translation (NAT-PT)“, G. Tsirtsis, P. Srisuresh. February 2000. 17 RFC 2893: “Transition Mechanisms for IPv6 Hosts and Routers“, R.
45、 Gilligan, E. Nordmark, August 2000. 17a RFC 4941: “Privacy Extensions for Stateless Address Autoconfiguration in IPv6“, T. Narten, R. Daves, S. Krishnan, September 2007. 18 3GPP TS 25.401: “UTRAN Overall Description“. ETSI ETSI TS 123 221 V15.0.0 (2018-07)83GPP TS 23.221 version 15.0.0 Release 1519
46、 3GPP TS 25.304: “UE Procedures in Idle Mode and Procedures for Cell Reselection in Connected Mode“. 20 3GPP TS 45.008: “Radio subsystem link control“. 21 RFC3316: “IPv6 for Some Second and Third Generation Cellular Hosts“, June 2002. 22 3GPP TS 24.007: “Digital cellular telecommunications system (P
47、hase 2+); Mobile radio interface signalling layer 3 General aspects“. 23 3GPP TS 24.229: “IP Multimedia Call Control Protocol based on SIP and SDP“. 24 3GPP TS 23.008: “Organisation of subscriber data“. 25 3GPP TS 24.008: “Mobile radio interface Layer 3 specification; Core network protocols; Stage 3
48、“. 26 3GPP TR 23.981: “Interworking aspects and migration scenarios for IPv4 based IMS implementations“. 27 3GPP TS 23.401: “General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access“. 28 3GPP TS 36.300: “Evolved Universal Terrestrial Ra
49、dio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access (E-UTRAN); Overall description; Stage 2“. 29 3GPP TS 36.331: “Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification“. 30 3GPP TS 23.272: “Circuit Switched Fallback in Evolved Packet System; Stage 2“. 31 3GPP TS 23.292: “IP Multimedia Subsystem (IMS) Centralized Services“. 32 3GPP TS 23.237: “IP Multimedia Subsystem (IMS) Service Continuity“. 33 3GPP TS 23.167: “IP Multimedia Subsyst
