1、 ETSI TS 124 304 V15.0.0 (2018-06) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Mobility management based on Mobile IPv4; User Equipment (UE) - foreign agent interface; Stage 3 (3GPP TS 24.304 version 15.0.0 Release 15) TECHNICA
2、L SPECIFICATION ETSI ETSI TS 124 304 V15.0.0 (2018-06)13GPP TS 24.304 version 15.0.0 Release 15Reference RTS/TSGC-0124304vf00 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
3、 Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/o
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9、ks registered and owned by the GSM Association. ETSI ETSI TS 124 304 V15.0.0 (2018-06)23GPP TS 24.304 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 t
10、o these essential IPRs, if any, is publicly available for ETSI members 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. L
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13、rty of ETSI, and conveys no right to use or reproduce any trademark and/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
14、 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 corresponding ETSI deliverables. The cross re
15、ference 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 “cannot“ are to be interpreted as described i
16、n 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 TS 124 304 V15.0.0 (2018-06)33GPP TS 24.304 version 15.0.0 Release 15Contents Intellectual Property Right
17、s 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g31 Scope 5g32 References 5g33 Definitions and abbreviations . 5g33.1 Definitions 5g33.2 Abbreviations . 6g34 General . 6g34.1 Mobility management based on FACoA 6g34.2 Identities . 6g34.3 Multiple PDN connectivity. 6g34.4 MIPv4 security aspe
18、cts . 6g35 FACoA procedures for mobile IPv4 7g35.1 FACoA initial attach and registration . 7g35.1.1 General 7g35.1.2 UE procedures 7g35.1.2.1 Agent discovery 7g35.1.2.2 FACoA registration . 7g35.1.3 FA procedures . 8g35.1.3.1 Agent advertisement 8g35.1.3.2 UE registration 8g35.2 FACoA handover . 8g3
19、5.2.1 General 8g35.2.2 UE procedures 8g35.2.3 FA procedures. 9g35.3 FACoA deregistration 9g35.3.1 General 9g35.3.2 UE procedures 9g35.3.2.1 Network-initiated deregistration . 9g35.3.2.2 UE-initiated deregistration 9g35.3.3 FA procedures . 10g35.3.3.1 Network-initiated deregistration . 10g35.3.3.2 UE
20、-initiated deregistration 10g3Annex A (informative): Change history . 11g3History 12g3ETSI ETSI TS 124 304 V15.0.0 (2018-06)43GPP TS 24.304 version 15.0.0 Release 15Foreword This Technical Specification has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present do
21、cument are subject to continuing work within the TSG and may change following formal TSG approval. Should the 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 wher
22、e: 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 control. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is i
23、ncremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 124 304 V15.0.0 (2018-06)53GPP TS 24.304 version 15.0.0 Release 151 Scope The present document describes the stage 3 aspects of mobility management for User Equipment (UE) using IETF Mobile IPv4 foreign agent
24、 mode to access the Evolved Packet Core Network (EPC) through trusted non-3GPP access networks and for mobility management of UE between the 3GPP access network and trusted non-3GPP access networks. In particular, the present document describes the UE Mobile IPv4 Foreign Agent (FA) interface stage 3
25、 aspects, where the FA functionality is located within the access network in the non-3GPP access domain. The present document is applicable to the User Equipment (UE) and the network node implementing the FA functionality. 2 References The following documents contain provisions which, through refere
26、nce 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 versi
27、on 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 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 IETF RFC 5944 (November 2010)
28、: “IP Mobility Support for IPv4, revised“. 3 3GPP TS 23.402: “Architecture enhancements for non-3GPP accesses“. 4 3GPP TS 23.003: “Numbering, addressing and identification“. 5 IETF RFC 5446 (February 2009): “Service Selection for Mobile IPv4“. 6 3GPP TS 33.402: “3GPP System Architecture Evolution; S
29、ecurity aspects for non-3GPP accesses“. 7 IETF RFC 2794 (January 2000): “Mobile IP Network Access Identifier Extension for IPv4“. 8 3GPP TS 29.279: “Mobile IPv4 (MIPv4) based Mobility protocols; (Stage 3)“. 9 IETF RFC 3543 (August 2003): “Registration Revocation in Mobile IPv4“. 3 Definitions and ab
30、breviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 1 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 1. Foreign Agent (FA): a router o
31、n a visited network which provides mobile IPv4 routing services to the UE while registered as described in IETF RFC 5944 2. Foreign agent care-of address: an address of a foreign agent with which the UE is registered as described in IETF RFC 5944 2. ETSI ETSI TS 124 304 V15.0.0 (2018-06)63GPP TS 24.
32、304 version 15.0.0 Release 15Home Agent (HA): a mobile IPv4 router on a UEs home network which tunnels datagrams for delivery to the UE while it is registered on a visited network as described in IETF RFC 5944 2. According to 3GPP TS 23.402 3, the HA functionality is implemented in the PDN Gateway.
33、3.2 Abbreviations For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 1 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 1. EPC Evolved Packet Core Network
34、 FA Foreign Agent FACoA Foreign Agent Care-of Address HA Home Agent RRP Registration Reply RRQ Registration Request 4 General 4.1 Mobility management based on FACoA MIPv4 is specified in IETF RFC 5944 2 which provides two alternative modes of enabling a mobile node (UE) to acquire a care-of address
35、for routing of datagrams: - a “foreign agent care-of address“ (FACoA) mode wherein a care-of address is provided by a FA through agent advertisement messages, or - a “co-located care-of address“ mode wherein a care-of address is acquired by the UE as a local IP address. For the purpose of IP mobilit
36、y management while accessing the EPC through a trusted non-3GPP access network, the FACoA mode enables the UE to register the IP address of the FA (FACoA) located within the non-3GPP access network with the UEs HA for the routing of datagrams to the UE. 4.2 Identities In order to support MIPv4 FA mo
37、de mobility management with the EPC, the network and mobile client shall use an NAI as described in 3GPP TS 23.003 4 for user identification. The network and mobile client shall base the username part of the NAI on IMSI. The network and UE shall use the Root NAI when the UE attempts a MIPv4 registra
38、tion while attached to the HPLMN. The Root NAI format is specified in 3GPP TS 23.003 4. The network and UE shall use the Decorated NAI when the UE attempts a MIPv4 registration while attached to a VPLMN. The Decorated NAI format is specified in 3GPP TS 23.003 4. 4.3 Multiple PDN connectivity Followi
39、ng the establishment of a mobility binding to an initial PDN, the UE can request the establishment of a mobility binding with an additional PDN by including the APN of the desired PDN within a Service Selection extension defined in IETF RFC 5446 5. The Service Selection extension is included within
40、the Registration Request (RRQ) message defined in IETF RFC 5944 2. The UE can repeat the process of sending an (RRQ) with a Service Selection extension to establish connectivity with additional PDNs. 4.4 MIPv4 security aspects The procedures for bootstrapping of MIPv4 foreign agent care-of address (
41、FACoA) security parameters are described in 3GPP TS 33.402 6. The MIPv4 security is based on the use of the authentication extensions defined in IETF RFC 5944 2. The MIPv4 signalling messages are protected between the UE and the HA using the Mobile-Home Authentication extension and optionally betwee
42、n the UE and the FA using the Mobile-Foreign Authentication extension. ETSI ETSI TS 124 304 V15.0.0 (2018-06)73GPP TS 24.304 version 15.0.0 Release 155 FACoA procedures for mobile IPv4 5.1 FACoA initial attach and registration 5.1.1 General The MIPv4 initial attach is performed by the UE to establis
43、h a MIPv4 connection with the node acting as the HA. The initial attach involves the following procedures: - Discovery of the HA address. The UE needs to discover the IPv4 address of the node acting as the HA. - Discovery of FACoA. The UE needs to discover the IPv4 care-of address provided by the FA
44、. - IPv4 home address assignment. The UE needs to be assigned an IPv4 address to be used as the home address in Mobile IPv4 FACoA mode. The HA is responsible of assigning the home address to the UE. - Security association establishment. The UE needs to establish a security association with the node
45、acting as the HA in order to secure the MIPv4 signalling. This procedure usually consists in a shared key verification and is performed via MIPv4 signalling. 5.1.2 UE procedures 5.1.2.1 Agent discovery When the UE has attached to the non-3GPP access network, the UE may send a MIPv4 Agent Solicitatio
46、n as specified in IETF RFC 5944 2. 5.1.2.2 FACoA registration Upon first receiving a MIPv4 Agent Advertisement message from a FA or detecting a reboot of the FA through inspection of the Agent Advertisement message sequence number, the UE shall select one care-of address included in the Mobility Age
47、nt Advertisement Extension and shall send an RRQ to the FA as specified in IETF RFC 5944 2 with the care-of address included in the Care-of Address field of the RRQ message. The UE shall set the source address and Home Address field to the unspecified address (i.e. 0.0.0.0). The UE shall clear bits
48、S (simultaneous binding) and D (decapsulation by mobile node), and set bit T (reverse tunnelling) to request reverse tunnelling. The UE shall also include the NAI extension as specified in IETF RFC 2794 7. As part of MIPv4 security, the UE shall include the Mobile-Home Authentication extension withi
49、n the RRQ as specified in IETF RFC 5944 2. The UE shall set the authenticator and SPI fields of the of the Mobile-Home authentication extension to the MN-HA key and associated MN-HA-SPI generated as described in 3GPP TS 33.402 6. If the non-3GPP access specific procedures require a security association between the UE and FA, the UE shall also include the Mobile-Foreign Authentication extension within the RRQ as specified in IETF RFC 5944 2. The UE shall set the authenticator and SPI fields of the of the Mobile-F
