1、 International Telecommunication Union ITU-T Y.2812TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (07/2012) SERIES Y: GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS Next Generation Networks Generalized mobility Mobility management for interworking between
2、WiMAX and UMTS Recommendation ITU-T Y.2812 ITU-T Y-SERIES RECOMMENDATIONS GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS GLOBAL INFORMATION INFRASTRUCTURE General Y.100Y.199 Services, applications and middleware Y.200Y.299 Network aspects Y.300Y.399 Interfa
3、ces and protocols Y.400Y.499 Numbering, addressing and naming Y.500Y.599 Operation, administration and maintenance Y.600Y.699 Security Y.700Y.799 Performances Y.800Y.899 INTERNET PROTOCOL ASPECTS General Y.1000Y.1099 Services and applications Y.1100Y.1199 Architecture, access, network capabilities a
4、nd resource management Y.1200Y.1299 Transport Y.1300Y.1399 Interworking Y.1400Y.1499 Quality of service and network performance Y.1500Y.1599 Signalling Y.1600Y.1699 Operation, administration and maintenance Y.1700Y.1799 Charging Y.1800Y.1899 IPTV over NGN Y.1900Y.1999 NEXT GENERATION NETWORKS Framew
5、orks and functional architecture models Y.2000Y.2099 Quality of Service and performance Y.2100Y.2199 Service aspects: Service capabilities and service architecture Y.2200Y.2249 Service aspects: Interoperability of services and networks in NGN Y.2250Y.2299 Numbering, naming and addressing Y.2300Y.239
6、9 Network management Y.2400Y.2499 Network control architectures and protocols Y.2500Y.2599 Packet-based Networks Y.2600Y.2699 Security Y.2700Y.2799 Generalized mobility Y.2800Y.2899Carrier grade open environment Y.2900Y.2999 FUTURE NETWORKS Y.3000Y.3499 CLOUD COMPUTING Y.3500Y.3999 For further detai
7、ls, please refer to the list of ITU-T Recommendations. Rec. ITU-T Y.2812 (07/2012) i Recommendation ITU-T Y.2812 Mobility management for interworking between WiMAX and UMTS Summary Recommendation ITU-T Y.2812 describes the mobility management framework for interworking between WiMAX and UMTS network
8、s. The mobility management framework in this Recommendation focuses on vertical handover control in the transport stratum of next generation networks (NGNs) when a user equipment with multiple interfaces moves across those two different wireless access networks. The requirements, functional architec
9、ture and procedural information flows are given to specify the vertical handover control functionality. History Edition Recommendation Approval Study Group 1.0 ITU-T Y.2812 2012-07-29 13 Keywords Mobility management, NGN, UMTS, vertical handover, WiMAX. ii Rec. ITU-T Y.2812 (07/2012) FOREWORD The In
10、ternational Telecommunication Union (ITU) is the United Nations specialized 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,
11、 operating and tariff questions and issuing Recommendations on them 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 tu
12、rn, produce Recommendations on these topics. The approval of ITU-T 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. NOT
13、E In this Recommendation, the expression “Administration“ is used for 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,
14、e.g., interoperability or applicability) and compliance with the Recommendation 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
15、 suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU 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
16、 evidence, validity or applicability of claimed Intellectual Property 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 received notice of intellectual property, protected by patents, which
17、may be required to implement this Recommendation. However, implementers 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 2013 All rights reserved. No part of this publication may
18、be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T Y.2812 (07/2012) 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 Convention
19、s 4 6 Requirements for WiMAX and UMTS interworking . 4 6.1 Harmonization with IP-based core networks . 4 6.2 Service continuity . 4 6.3 QoS support 4 6.4 Service compatibility 5 6.5 Service context transfer 5 6.6 Interworking with the established AAA and security schemes 5 6.7 Policy-based and dynam
20、ic network selection . 5 7 Functional architecture for interworking between WiMAX and UMTS 5 7.1 Access transport function . 6 7.2 Core transport function . 6 7.3 Interworking for handover support . 7 7.4 Seamless handover support 7 8 Signal flow for interworking between WiMAX and UMTS 9 8.1 Access
21、network detection and selection . 9 8.2 Connection establishment . 10 8.3 Vertical handover . 13 9 Security considerations . 19 Appendix I Use cases of hybrid MIP-based MM between WiMAX and UMTS . 20 I.1 Introduction to hybrid mobile IP 20 I.2 Initial connection establishment procedure in the UMTS n
22、etwork 21 I.3 Handover procedure from UMTS to WiMAX (make-before-break scenario) . 21 I.4 Initial connection establishment procedure in the WiMAX network . 22 I.5 Handover procedure from WiMAX to UMTS . 23 Appendix II Use cases of PMIPv6 with bicasting for vertical handovers 25 Bibliography. 27 iv R
23、ec. ITU-T Y.2812 (07/2012) Introduction This Recommendation describes the mobility management (MM) architecture between WiMAX and UMTS technologies in next generation networks (NGNs). This work has been motivated from the observation that NGN continues to evolve toward the accommodation of various w
24、ireless access technologies. Accordingly, it is required to specify the detailed architecture and procedures to practically apply the NGN MM framework to the environment accommodating those various access technologies. The MM architecture in this Recommendation is designed on the basis of the MM fra
25、mework for NGN, which is described in the following Recommendations: ITU-T Q.1707/Y.2804: Generic framework of mobility management for next generation networks ITU-T Q.1707; ITU-T Q.1708/Y.2805: Framework of location management for NGN ITU-T Q.1708; ITU-T Q.1709/Y.2806: Framework of handover control
26、 for NGN ITU-T Q.1709; ITU-T Y.2018: Mobility management and control framework and architecture within the NGN transport stratum ITU-T Y.2018. Rec. ITU-T Y.2812 (07/2012) 1 Recommendation ITU-T Y.2812 Mobility management for interworking between WiMAX and UMTS 1 Scope This Recommendation describes t
27、he mobility management (MM) framework for interworking between WiMAX and UMTS networks where each access network would be operated by different service providers or different network management systems. In this Recommendation, the functional architecture focuses on IP mobility support for user equip
28、ment (UE) moving between those two different access networks. The functional architecture described in this Recommendation may be referred as a building block to be used to extend toward the other wireless access networks in next generation networks (NGNs). 2 References The following ITU-T Recommend
29、ations and other references contain provisions which, through reference in this text, constitute provisions 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 theref
30、ore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and 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-
31、alone document, the status of a Recommendation. ITU-T G.1000 Recommendation ITU-T G.1000 (2001), Communications quality of service: A framework and definitions. ITU-T Q.1706 Recommendation ITU-T Q.1706/Y.2801 (2006), Mobility management requirements for NGN. ITU-T Q.1707 Recommendation ITU-T Q.1707/
32、Y.2804 (2008), Generic framework of mobility management for next generation networks. ITU-T Q.1708 Recommendation ITU-T Q.1708/Y.2805 (2008), Framework of location management for NGN. ITU-T Q.1709 Recommendation ITU-T Q.1709/Y.2806 (2008), Framework of handover control for NGN. ITU-T Y.2001 Recommen
33、dation ITU-T Y.2001 (2004), General overview of NGN. ITU-T Y.2011 Recommendation ITU-T Y.2011 (2004), General principles and general reference model for Next Generation Networks. ITU-T Y.2012 Recommendation ITU-T Y.2012 (2010), Functional requirements and architecture of next generation networks. IT
34、U-T Y.2018 Recommendation ITU-T Y.2018 (2009), Mobility management and control framework and architecture within the NGN transport stratum. ITU-T Y.2701 Recommendation ITU-T Y.2701 (2007), Security requirements for NGN release 1. 2 Rec. ITU-T Y.2812 (07/2012) 3 Definitions 3.1 Terms defined elsewher
35、e This Recommendation uses the following terms defined elsewhere: 3.1.1 functional architecture ITU-T Y.2012: A set of functional entities and the reference points between them used to describe the structure of an NGN. These functional entities are separated by reference points, and thus, they defin
36、e the distribution of functions. NOTE The functional entities can be used to describe a set of reference configurations. These reference configurations identify which reference points are visible at the boundaries of equipment implementations and between administrative domains. 3.1.2 functional enti
37、ty ITU-T Y.2012: An entity that comprises an indivisible set of specific functions. Functional entities are logical concepts, while groupings of functional entities are used to describe practical, physical implementations. 3.1.3 host-based mobility management ITU-T Q.1707: A mobility management sche
38、me in which the MM signalling is performed based on (or controlled by) the user equipment (UE). 3.1.4 network-based mobility management ITU-T Q.1707: A mobility management scheme in which the MM signalling is performed (or controlled) by the network entities, on behalf of the UE. 3.1.5 next generati
39、on network ITU-T Y.2001: A packet-based network able to provide telecommunication services and able to make use of multiple broadband, QoS-enabled transport technologies and in which service-related functions are independent from underlying transport-related technologies. It enables unfettered acces
40、s for users to networks and to competing service providers and/or services of their choice. It supports generalized mobility which will allow consistent and ubiquitous provision of services to users. 3.1.6 mobility ITU-T Q.1706: The ability for the user or other mobile entities to communicate and ac
41、cess services irrespective of changes of the location or technical environment. 3.1.7 mobility management ITU-T Q.1706: The set of functions used to provide mobility. These functions include authentication, authorization, location updating, paging, download of user information and more. 3.1.8 qualit
42、y of service ITU-T G.1000: The collective effect of service performances, which determine the degree of satisfaction of a user of the service. 3.1.9 transport stratum ITU-T Y.2011: That part of the NGN which provides the user functions that transfer data and the functions that control and manage tra
43、nsport resources to carry such data between terminating entities (see also clause 7.1 of ITU-T Y.2011). 3.2 Terms defined in this Recommendation None. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: AAA Authentication, Authorization and Accounting ABG-
44、FE Access Border Gateway Functional Entity AN Access Network AN-FE Access Node Functional Entity AP Access Point Rec. ITU-T Y.2812 (07/2012) 3 AR-FE Access Relay Functional Entity ASN Access Service Network BBM Break-Before-Make BCE Binding Cache Entry BS Base Station CCoA Co-located CoA CMIP Client
45、 Mobile IP CN Correspondent Node CoA Care-of-Address DHCP Dynamic Host Configuration Protocol GGSN Gateway GPRS Supporting Node GPRS General Packet Radio Service HA Home Agent HDC-FE Handover Decision and Control Functional Entity HoA Home Address IBG-FE Interconnection Border Gateway Functional Ent
46、ity IMSI International Mobile Subscriber Identity IP Internet Protocol L2HE-FE Layer 2 Handover Execution Functional Entity L3HEF Layer 3 Handover Execution Function LMA Local Mobility Anchor MAG Mobile Access Gateway MBB Make-Before-Break MIH Media Independent Handover MIIS MIH Information Server M
47、IP Mobile IP MLM-FE Mobility Location Management Functional Entity MM Mobility Management MMCF Mobility Management and Control Function MUE Mobile UE NACF Network Attachment Control Function NAC-FE Network Access Configuration Functional Entity NGN Next Generation Network NID-FE Network Information
48、Distribution Functional Entity PDN Packet Data Network PDP Packet Data Protocol PMA Proxy Mobile Agent 4 Rec. ITU-T Y.2812 (07/2012) PMIP Proxy MIP PRRP Proxy RRP PRRQ Proxy RRQ QoS Quality of Service RNC Radio Network Controller RRP Registration Reply RRQ Registration Request SAE System Architectur
49、e Evolution SGSN Serving GPRS Supporting Node TUP-FE Transport User Profile Functional Entity UE User Equipment UMTS Universal Mobile Telecommunications System WiMAX Worldwide Interoperability for Microwave Access 5 Conventions None. 6 Requirements for WiMAX and UMTS interworking 6.1 Harmonization with IP-based core networks The NGN is envisaged to be IP-based. Accordingly, the mobility management (MM) protocols for NGN should be IP-ba
