1、 ETSI TR 1Universal Mobile TelInterworking aspects anIP Multimedia Su(3GPP TR 23.9TECHNICAL REPORT 123 981 V13.0.0 (2016elecommunications System (LTE; and migration scenarios for IPubsystem (IMS) implementati.981 version 13.0.0 Release 1316-01) (UMTS); r IPv4-based ations 13) ETSI ETSI TR 123 981 V1
2、3.0.0 (2016-01)13GPP TR 23.981 version 13.0.0 Release 13Reference RTR/TSGS-0223981vd00 Keywords 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
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7、ission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2016. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand t
8、he ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TR 123
9、 981 V13.0.0 (2016-01)23GPP TR 23.981 version 13.0.0 Release 13Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-membe
10、rs, 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.org/). Pursuant
11、to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document
12、. Foreword This Technical Report (TR) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The 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 corr
13、esponding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under 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 “can
14、not“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TR 123 981 V13.0.0 (2016-01)33GPP TR 23.981 version 13.0.0 Relea
15、se 13Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g3Introduction 5g31 Scope 6g32 References 6g33 Definitions, symbols and abbreviations . 7g33.1 Definitions 7g33.2 Symbols 7g33.3 Abbreviations . 7g34 Architectural Requirements 8g34.1 General . 8g34.2
16、Operational aspects for GPRS system 8g34.2.1 Support of PDP type IPv6 . 8g34.2.2 GPRS network/nodes 9g35 Architectural concept . 9g35.1 General . 9g35.2 UE access to IM CN subsystem . 10g35.2.1 Obtaining IP address and P-CSCF discovery . 10g35.2.2 Scenarios . 11g35.2.2.1 IMS dual Stack UE accessing
17、an IM CN subsystem . 11g35.2.2.2 IPv4 UE and IPv4 based IM CN subsystem Implementation . 11g35.2.2.3 IPv4 UE and IPv6 based IM CN subsystem 12g35.2.3 IP Versions in UE and P-CSCF 12g35.2.4 IP Versions in SGSN and GGSN 12g35.2.4.1 General 12g35.2.4.2 Implications of not supporting IPv6 in SGSN . 12g3
18、5.3 Interworking scenarios . 12g35.3.1 Interworking architecture and NATs 12g35.3.1.1 Interworking architecture 12g35.3.1.2 NATs . 13g35.3.2 Overview 13g35.3.3 Non-roaming access to IMS scenarios 14g35.3.3.1 Non-roaming - IPv4 IM CN subsystem 14g35.3.3.2 Non-roaming dual stack IM CN subsystem 14g35.
19、3.3.3 Non-roaming IPv6 IM CN subsystem . 15g35.3.4 GPRS access scenarios . 15g35.3.4.1 Non-roaming scenario, dual stack home network . 15g35.3.4.2 Roaming IPv4 visited network, dual stack home network . 15g35.3.4.3 Roaming IPv4 visited network, IPv6 IMS home network 16g35.3.4.4 Roaming dual stack vi
20、sited network, IPv4 GGSN and Dual stack IMS. 17g35.3.4.5 Roaming dual stack visited network, IPv6 home network . 17g35.3.5 Interconnection and end-to-end scenarios . 18g35.3.5.1 Overall Scenario 18g35.3.5.2 NAT/ALG between IMS entities within one operator“s IMS network . 19g35.3.6 Summary of issues
21、arising from the scenarios 20g35.3.7 IP version interworking for services . 20g35.3.7.1 Application servers 20g35.3.7.2 Interworking support in dual stack IM CN subsystem 21g35.3.7.3 Access to network services . 22g3ETSI ETSI TR 123 981 V13.0.0 (2016-01)43GPP TR 23.981 version 13.0.0 Release 135.4 M
22、igration scenarios 22g35.4.1 IPv4 UE and IPv6 IM CN subsystem . 22g35.4.2 A partially migrated IPv4 to IPv6 IM CN subsystem . 22g35.4.3 Migration aspects for services 22g35.4.3.1 Application Servers . 22g35.4.3.2 Migration support in dual stack IM CN subsystem . 22g35.4.3.3 Access to network service
23、s . 22g35.4.4 Example migration paths 23g36 Conclusions and recommendations 23g3Annex A: Additional Information 24g3A.1 GPRS deployment scenarios 24g3A.1.1 IMS roaming access IPv4 visited network, IPv4 home network . 25g3A.1.2 IMS roaming access - IPv4 visited network, IPv6 home network 25g3A.1.3 IM
24、S roaming access - IPv6 visited network, IPv4 home network 26g3A.1.4 IMS roaming access - IPv4 visited network, dual stack home network 26g3A.2 End to End scenarios 27g3A.2.1 Non-roaming - IPv4 IM CN subsystem with IPv6 IM CN subsystem 27g3A.2.2 Non-roaming - IPv4 IM CN subsystem with IPv4 IM CN sub
25、system 27g3A.2.3 Non-roaming IPv4 IM CN subsystem with dual stack IM CN subsystem 28g3A.2.4 Non-roaming dual stack IM CN subsystem with dual stack IM CN subsystem . 29g3A.2.5 Non-roaming IPv6 IM CN subsystem with dual stack IM CN subsystem 29g3Annex B: Change history 31g3History 32g3ETSI ETSI TR 123
26、 981 V13.0.0 (2016-01)53GPP TR 23.981 version 13.0.0 Release 13Foreword This Technical Report has been produced by the 3rd Generation 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 th
27、e TSG modify the contents of the present document, 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 indi
28、cates TSG approved document under change control. 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. Introduction 3GPP specificati
29、ons design the IMS to use exclusively IPv6, however early IMS implementations and deployments may use IPv4, as specified in clause 5.1 of TS 23.221 3. Therefore it is understood that there will exist IPv4 based IMS implementations, namely initial IMS implementations and IMS implementations based on
30、3GPP2 specifications. This is the motivation to study interworking and migration scenarios related to IPv4 based IMS implementations. ETSI ETSI TR 123 981 V13.0.0 (2016-01)63GPP TR 23.981 version 13.0.0 Release 131 Scope The present document studies study interworking and migration scenarios related
31、 to IPv4 based IMS implementations. The study provides guidelines for operators and vendors on interworking aspects of IPv4 based IMS implementations, and provides guidelines on migrating to 3GPP IMS using IPv6. 2 References The following documents contain provisions which, through reference in this
32、 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.
33、 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 Void. 2 3GPP TS 21.905: “Vocabulary for 3GPP Specifications“. 3 3GPP TS 23.221: “Architectural R
34、equirements“. 4 3GPP TS 23.228: “IP Multimedia (IM) Subsystem - Stage 2“. 5 3GPP TS 23.141: “Presence Service; Architecture and Functional Description“. 6 3GPP TS 23.060: “General Packet Radio Service (GPRS); Service description; Stage 2“. 7 3GPP TS 33.203: “3G security; Access security for IP-based
35、 services“. 7a 3GPP TS 23.002: “Network Architecture“. 8 draft-ietf-ngtrans-isatap-21.txt (April 2004): “Intra-Site Automatic Tunnel Addressing Protocol (ISATAP)“, work in progress. Editors note: The above document cannot be formally referenced until it is published as an RFC. 9 3GPP TS 24.008: “Mob
36、ile radio interface Layer 3 specification; Core network protocols; Stage 3“. 10 RFC 2373: “IP Version 6 Addressing Architecture“. 11 OMA Device Management 1.1.2. 12 OMA Client Provisioning 1.1. 13 3GPP TS 24.167: “3GPP IMS Management Objects (MO); Stage 3“. 14 3GPP TS 27.060: “Mobile Station (MS) su
37、pporting Packet Switched Services“. ETSI ETSI TR 123 981 V13.0.0 (2016-01)73GPP TR 23.981 version 13.0.0 Release 133 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in TS 21.905 2 and the following apply. Dual stack IM
38、CN subsystem: For the purpose of this technical report, a dual stack IM CN subsystem is an IM CN subsystem implementation in which all network entities support IPv4 and IPv6 for IMS communication. It is an IM CN subsystem implementation that supports both IPv6 as per 3GPP Release 5 or later standard
39、s, and an IPv4 IM CN subsystem. IPv4 based IM CN subsystem implementation, IPv4 IM CN subsystem: For the purpose of this technical report, an IPv4 based IM CN subsystem implementation (or short: IPv4 IM CN subsystem) means an IM CN subsystem implementation, which is based on 3GPP Release 5 or later
40、standards, but uses IPv4 rather than IPv6. IPv4 based UE implementation, IPv4 UE: For the purpose of this technical report, an IPv4 based UE implementation (or short: IPv4 UE) means a UE implementation, which is based on 3GPP Release 5 or later IMS standards, but uses IPv4 rather than IPv6 to access
41、 an IM CN subsystem. IPv6 based IM CN subsystem implementation, IPv6 IM CN subsystem: For the purpose of this technical report, an IPv6 based IM CN subsystem implementation (or short: IPv6 IM CN subsystem) means the IM CN subsystem implementation according to 3GPP Release 5 or later standards that u
42、ses IPv6. IPv6 UE: For the purpose of this technical report, an IPv6 UE means a UE implementation, which is based on 3GPP Release 5 or later IMS standards and uses only IPv6 to access IM CN subsystem even though the IP stack in the UE as such may be a dual IPv4 and IPv6 stack. IMS dual stack UE: For
43、 the purpose of this technical report, an IMS dual stack UE means a UE implementation, which is based on 3GPP Release 5 or later IMS standards, but in addition to IPv6 can use IPv4 to access an IPv4 IM CN subsystem. 3.2 Symbols For the purposes of the present document, the following symbols apply: G
44、i Reference point between GPRS and a packet data network. Gm Reference Point between a UE and a P-CSCF. Gn Interface between two GSNs within the same PLMN. Mb Reference point to network services. 3.3 Abbreviations For the purposes of the present document, the following abbreviations apply: ALG Appli
45、cation Level Gateway CN Core NetworkCSCF Call/Session Control Function DHCP Dynamic Host Configuration Protocol DNS Domain Name System GGSN Gateway GPRS Support Node GPRS General Packet Radio Service GSN GPRS Support Note I-CSCF Interrogating CSCFIM IP MultimediaIMS IP Multimedia Subsystem IM-MGW IP
46、 Multimedia Media GateWay IP Internet Protocol IPSec IP Security protocol MRFP Multimedia Resource Function Processor NAT Network Address Translation ETSI ETSI TR 123 981 V13.0.0 (2016-01)83GPP TR 23.981 version 13.0.0 Release 13NA(P)T-PT Network Address (Port-Multiplexing) Translation-Protocol Tran
47、slation OMA Open Mobile Alliance OTA Over the Air Activation PCO Protocol Configuration Options P-CSCF Proxy-CSCF PDP Packet Data Protocol QoS Quality of Service S-CSCF Serving-CSCF SGSN Serving GPRS Support Node SIP Session Initiation Protocol SMS Short Message Service TrGW Transition GatewayUE Use
48、r Equipment 4 Architectural Requirements 4.1 General An IMS dual stack UE shall be able to determine whether to use IPv4 or IPv6 when accessing the IMS. A dual stack IMS shall be able to determine whether to use IPv4 or IPv6. IMS security shall be possible for both IPv4 and IPv6 IMS networks and UEs
49、 accessing these networks. SIP Compression shall be possible for both IPv4 and IPv6 IMS networks and UEs accessing these networks. P-CSCF discovery mechanisms shall be possible for both IPv4 and IPv6 IMS networks and UEs accessing these networks. An IPv4 IM CN Subsystem shall be able to interwork with an IPv4 IM CN Subsystem. An IPv4 IM CN Subsystem shall be able to interwork with an IPv6 IM CN Subsystem. A dual stack IM CN Subsystem shall be able to interwork with an IPv4 IM CN Subsystem. A dual stack IM CN Subsystem shall be ab
