1、 I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n ITU-T Q.3229 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (08/2016) SERIES Q: SWITCHING AND SIGNALLING Signalling requirements and protocols for the NGN Signalling and control requirements and protocols to support attachment i
2、n NGN environments Signalling requirements and protocol at the M2 interface between the transport location management physical entity and the handover decision and control physical entity Recommendation ITU-T Q.3229 ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIO
3、NAL MANUAL SERVICE Q.1Q.3 INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING Q.4Q.59 FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN Q.60Q.99 CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS Q.100Q.119 SPECIFICATIONS OF SIGNALLING SYSTEMS No. 4, 5, 6, R1 AND R2 Q.120Q.499 DIGITAL EXCHANGES Q.50
4、0Q.599 INTERWORKING OF SIGNALLING SYSTEMS Q.600Q.699 SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 Q.700Q.799 Q3 INTERFACE Q.800Q.849 DIGITAL SUBSCRIBER SIGNALLING SYSTEM No. 1 Q.850Q.999 PUBLIC LAND MOBILE NETWORK Q.1000Q.1099 INTERWORKING WITH SATELLITE MOBILE SYSTEMS Q.1100Q.1199 INTELLIGENT NETWORK
5、Q.1200Q.1699 SIGNALLING REQUIREMENTS AND PROTOCOLS FOR IMT-2000 Q.1700Q.1799 SPECIFICATIONS OF SIGNALLING RELATED TO BEARER INDEPENDENT CALL CONTROL (BICC) Q.1900Q.1999 BROADBAND ISDN Q.2000Q.2999 SIGNALLING REQUIREMENTS AND PROTOCOLS FOR THE NGN Q.3000Q.3709 General Q.3000Q.3029 Network signalling
6、and control functional architecture Q.3030Q.3099 Network data organization within the NGN Q.3100Q.3129 Bearer control signalling Q.3130Q.3179 Signalling and control requirements and protocols to support attachment in NGN environments Q.3200Q.3249 Resource control protocols Q.3300Q.3369 Service and s
7、ession control protocols Q.3400Q.3499 Service and session control protocols supplementary services Q.3600Q.3616 Service and session control protocols supplementary services based on SIP-IMS Q.3617Q.3639 NGN applications Q.3700Q.3709 SIGNALLING REQUIREMENTS AND PROTOCOLS FOR SDN Q.3710Q.3899 TESTING
8、SPECIFICATIONS Q.3900Q.4099 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T Q.3229 (08/2016) i Recommendation ITU-T Q.3229 Signalling requirements and protocol at the M2 interface between the transport location management physical entity and the handover decision a
9、nd control physical entity Summary Recommendation ITU-T Q.3229 specifies the protocol for the interface between the transport location management physical entity (TLM-PE) of the network attachment control entity (NACE) and the handover decision and control physical entity (HDC-PE) of the mobility ma
10、nagement and control entity (MMCE). M2 interface provides information from the TLM-PE to the HDC-PE to support the security association. This Recommendation supports information flows providing the keying material via the M2 reference point as specified in Recommendation ITU-T Y.2018. History Editio
11、n Recommendation Approval Study Group Unique ID* 1.0 ITU-T Q.3229 2016-08-29 11 11.1002/1000/12985 Keywords Handover decision and control physical entity, HDC-PE, mobility management and control entity, MMCE, M2 interface, TLM-PE, transport location management physical entity. * To access the Recomm
12、endation, type the URL http:/handle.itu.int/ in the address field of your web browser, followed by the Recommendations unique ID. For example, http:/handle.itu.int/11.1002/1000/11830-en. ii Rec. ITU-T Q.3229 (08/2016) FOREWORD The International Telecommunication Union (ITU) is the United Nations spe
13、cialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them
14、 with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T
15、Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used f
16、or conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure, e.g., interoperability or applicability) and compliance with the Re
17、commendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any
18、 party. INTELLECTUAL PROPERTY RIGHTSITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Propert
19、y Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, imple
20、menters are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2016 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior writte
21、n permission of ITU. Rec. ITU-T Q.3229 (08/2016) iii Table of Contents Page 1 Scope . 1 2 References . 1 3 Definitions 2 3.1 Terms defined elsewhere 2 3.2 Terms defined in this Recommendation . 2 4 Abbreviations and acronyms 2 5 Conventions 3 6 M2 interface 3 6.1 Overview 3 6.2 Physical entities 3 7
22、 Signalling requirements 4 7.1 Network selection key transfer indication 5 8 Description of procedures . 6 8.1 General . 6 8.2 Procedures on the M2 interface 6 9 Use of Diameter-based protocol . 7 9.1 Security . 7 9.2 Accounting . 7 9.3 Sessions 7 9.4 Transport protocol 7 9.5 Routing considerations
23、. 7 9.6 Application advertisement 8 10 Message specification . 8 10.1 Commands 8 10.2 Experimental-Result-Code AVP values . 9 10.3 AVPs . 9 10.4 Use of namespaces . 10 11 Security considerations . 11 Appendix I Mapping to mobility signalling requirements for IMT-2020 12 Bibliography. 13 Rec. ITU-T Q
24、.3229 (08/2016) 1 Recommendation ITU-T Q.3229 Signalling requirements and protocol at the M2 interface between the transport location management physical entity and the handover decision and control physical entity 1 Scope This Recommendation specifies the protocol for the interface between the tran
25、sport location management physical entity (TLM-PE) of the network attachment control entity (NACE) and the handover decision and control physical entity (HDC-PE) of the mobility management and control entity (MMCE). M2 interface provides information from the TLM-PE to the HDC-PE to support the secur
26、ity association. This Recommendation supports information flows providing the keying material via the M2 reference point as specified in ITU-T Y.2018. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions
27、 of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations an
28、d other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T Q.3230 Recommendation ITU-T Y.3230 (2012), Signalling
29、 requirements and protocol at the M13 interface between the transport location management and network information distribution physical entities. ITU-T Y.2014 Recommendation ITU-T Y.2014 (2010), Network attachment control functions in next generation networks. ITU-T Y.2018 Recommendation ITU-T Y.201
30、8 (2009), Mobility management and control framework and architecture within the NGN transport stratum. ETSI TS 129 229 ETSI TS 129 229 V13.0.0 (2016), Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Cx and Dx interfaces based on th
31、e Diameter protocol; Protocol details (3GPP TS 29.229 version 13.0.0 Release 13). ETSI TS 129 329 ETSI TS 129 329 V12.6.0 (2016), Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Sh interface based on the Diameter protocol; Protocol detai
32、ls (3GPP TS 29.329 version 12.6.0 Release 12). ETSI ES 283 034 ETSI ES 283 034 V2.2.0 (2008), Telecommunications and Internet converged Services and Protocols for Advanced Networks (TISPAN); Network Attachment Sub-System (NASS); e4 interface based on the DIAMETER protocol. ETSI ES 283 035 ETSI ES 28
33、3 035 V3.1.1 (2015), Network Technologies (NTECH); Network Attachment; e2 interface based on the DIAMETER protocol IETF RFC 4960 IETF RFC 4960 (2007), Stream Control Transmission Protocol. IETF RFC 6733 IETF RFC 6733 (2012), Diameter Base Protocol. 2 Rec. ITU-T Q.3229 (08/2016) 3 Definitions 3.1 Ter
34、ms defined elsewhere This Recommendation uses the following terms defined elsewhere: 3.1.1 location information b-ITU-T Q.1001: The location register should as a minimum contain the following information about a mobile station: international mobile station identity; actual location of the mobile sta
35、tion (e.g., PLMN, MSC area, location area, as required). 3.1.2 security association b-IETF RFC 2401: A simplex “connection“ that affords security services to the traffic carried by it. 3.2 Terms defined in this Recommendation None. 4 Abbreviations and acronyms This Recommendation uses the following
36、abbreviations and acronyms: 3GPP 3rd Generation Partnership Project AAA Authentication, Authorization and Accounting ABNF Augmented Backus-Naur Form AM-FE Access Management Functional Entity AM-PE Access Management Physical Entity AVP Attribute-Value Pair CPE Customer Premises Equipment HDC-FE Hando
37、ver Decision and Control Functional Entity HDC-PE Handover Decision and Control Physical Entity IP Internet Protocol IPsec IP security protocol MLM-FE Mobile Location Management Functional Entity MLM-PE Mobile Location Management Physical Entity MMCE Mobility Management and Control Entity MMCF Mobil
38、ity Management and Control Function NACE Network Attachment Control Entity NACF Network Attachment Control Function NGN Next Generation Network SCTP Stream Control Transmission Protocol TAA-FE Authentication and Authorization Functional Entity TAA-PE Transport Authentication and Authorization Physic
39、al Entity TLM-FE Location Management Functional Entity TLM-PE Transport Location Management Physical Entity Rec. ITU-T Q.3229 (08/2016) 3 UE User Equipment 5 Conventions None. 6 M2 interface 6.1 Overview The network attachment control function (NACF) manages transport resource subscription informati
40、on between authentication and authorization functional entity (TAA-FE) and transport location management functional entity (TLM-FE). This information includes the keying material within mobility service parameters in addition to the transport subscriber identifier. The M2 interface allows distributi
41、ng the keying material from the TLM-FE to the handover decision and control physical entity (HDC-FE) defined in the stage 2 specifications ITU-T Y.2014 and ITU-T Y.2018. Mobility service parameters information flow is used on the M2 reference point. This information flow provides the keying material
42、 to support the security association required between the HDC-FE and the user equipment (UE). Figure 6-1 shows the M2 reference point between the transport location management physical entity (TLM-PE) and handover decision and control physical entity (HDC-PE). Figure 6-1 Reference points between the
43、 NACE and the MMCE ITU-T Y.2018 6.2 Physical entities Table 6-1 indicates the mapping from the functional entities to the physical entities implementing them. 4 Rec. ITU-T Q.3229 (08/2016) Table 6-1 Mapping from functional to physical entities concerned with the M2 reference point Functional entity
44、Abbrev. Physical entity Abbrev. Network attachment control functions NACF Network attachment control entity NACE Mobility management and control functions MMCF Mobility management and control entity MMCE Transport location management functional entity TLM-FE Transport location management physical en
45、tity TLM-PE Transport authentication and authorization functional entity TAA-FE Transport authentication and authorization physical entity TLM-PE Access management functional entity AM-FE Access management physical entity AM-PE Handover decision and control functional entity HDC-FE Handover decision
46、 and control physical entity HDC-PE Mobile location management functional entity MLM-FE Mobile location management physical entity MLM-PE 6.2.1 Transport location management physical entity (TLM-PE) The TLM-PE identifies the current network location of a UE and keeps track of it as it moves. When th
47、e point of attachment of a UE is changed in network, TLM-PE updates the association between the UEs IP address and related network location information and the association between network location information and geographical location information. When a UE is attached to a new access network, the n
48、ew TLM-PE allocates a new temporary IP address, stores the location information and may inform service control function of the updated binding information. The TLM-PE delivers the mobility service subscriber identifier in addition to the keying material as the network selection key transfer indicati
49、on. When a mobile user hands over from the serving AM-PE to the target AM-PE, the TAA-PE will receive the user authentication request from the target AM-PE and derive an authentication key for it. The TLM-PE informs the HDC-PE of the keying material related to mobility service authentication. 6.2.2 Handover decision and control physical entity (HDC-PE) The HDC-PE has three sub-functions: handover decision, layer 2 handover control, and layer 3 handover control. The HDC-PE is responsible for t
