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    ITU-T Q 3232-2014 Signalling requirements and protocol at the Nc interface between the transport location management physical entity and the transport authentication and authorizat.pdf

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    ITU-T Q 3232-2014 Signalling requirements and protocol at the Nc interface between the transport location management physical entity and the transport authentication and authorizat.pdf

    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.3232 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (08/2014) 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 Nc interface between the transport location management physical entity and the transport authentication and authorization physical entity Recommendation ITU-T Q.3232 ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN T

    3、HE INTERNATIONAL 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 E

    4、XCHANGES Q.500Q.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 INTELLI

    5、GENT NETWORK 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.3999 General Q.3000Q.3029 Networ

    6、k signalling 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

    7、Service and session control protocols Q.3400Q.3499 Service and session control protocols supplementary services Q.3600Q.3649 NGN applications Q.3700Q.3849 Testing for next generation networks Q.3900Q.3999 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T Q.3232 (08/2

    8、014) i Recommendation ITU-T Q.3232 Signalling requirements and protocol at the Nc interface between the transport location management physical entity and the transport authentication and authorization physical entity Summary Recommendation ITU-T Q.3232 specifies the protocol for the interface betwee

    9、n the transport location management physical entity (TLM-PE) and the transport authentication and authorization physical entity (TAA-PE) of the network attachment control entity (NACE). The Nc interface allows the TLM-PE to register the association between a subscriber and the corresponding preferen

    10、ces regarding the privacy of location information provided by the TAA-PE. Reference point Nc is also used to register transport resource subscription information. The TLM-PE may retrieve the transport resource subscription information from the TAA-PE. History Edition Recommendation Approval Study Gr

    11、oup Unique ID* 1.0 ITU-T Q.3232 2014-08-29 11 11.1002/1000/12217 _ * To access the Recommendation, 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.3232 (08

    12、/2014) FOREWORD The International 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 f

    13、or studying technical, 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 stu

    14、dy groups which, in turn, 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

    15、 with ISO and IEC. NOTE 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 p

    16、rovisions (to ensure, 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

    17、of such words does not suggest that compliance with the Recommendation is required of any 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 po

    18、sition concerning the 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 not received notice of intellectual property, pro

    19、tected by patents, which 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 2015 All rights reserved. No part

    20、 of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T Q.3232 (08/2014) 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

    21、 and acronyms 2 5 Conventions 3 6 Nc interface . 3 6.1 Overview 3 6.2 Nc reference model . 4 6.3 Physical entities and capabilities 4 7 Signalling requirements 5 7.1 Transport resource information indication . 6 7.2 Transport resource information request 8 7.3 Transport resource information response

    22、 . 9 7.4 Transport resource release notification 11 8 Description of procedures . 11 8.1 General . 11 8.2 Procedure at the Nc interface . 12 9 Use of Diameter base protocol . 18 9.1 Securing Diameter messages 18 9.2 Accounting functionality 18 9.3 Use of sessions . 18 9.4 Transport protocol 18 9.5 R

    23、outing considerations . 18 9.6 Advertising application support . 19 10 Message specification . 19 10.1 Commands 19 10.2 Experimental-Result-Code AVP values . 22 10.3 Attribute-value pairs . 22 10.4 Use of namespaces . 26 11 Security considerations . 27 Bibliography. 28 Rec. ITU-T Q.3232 (08/2014) 1

    24、Recommendation ITU-T Q.3232 Signalling requirements and protocol at the Nc interface between the transport location management physical entity and the transport authentication and authorization physical entity 1 Scope This Recommendation specifies the protocol for the Nc interface between the transp

    25、ort location management physical entity (TLM-PE) and the transport authentication and authorization physical entity (TAA-PE). 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation.

    26、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 and other references listed

    27、 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 Y.1541 Recommendation ITU-T Y.1541 (2011), Network performance objectives for

    28、IP-based services. ITU-T Y.2014 Recommendation ITU-T Y.2014 (2010), Network attachment control functions in next generation networks. ITU-T Y.2701 Recommendation ITU-T Y.2701 (2007), Security requirements for NGN release 1. ETSI ES 283 034 ETSI ES 283 034 V2.2.0 (2008), Telecommunications and Intern

    29、et converged Services and Protocols for Advanced Networks (TISPAN); Network Attachment Sub-System (NASS); e4 interface based on the DIAMETER protocol. ETSI TS 129 229 ETSI TS 129 229 V11.4.0 (2013), Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UM

    30、TS); LTE; Cx and Dx interfaces based on the Diameter protocol; Protocol details (3GPP TS 29.229 version 11.4.0 Release 11). ETSI TS 129 329 ETSI TS 129 329 V11.7.0 (2013), Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Sh interface base

    31、d on the Diameter protocol; Protocol details (3GPP TS 29.329 version 11.7.0 Release 11). ETSI TS 183 020 ETSI TS 183 020 V1.1.1 (2006), Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Network Attachment: Roaming in TISPAN NGN Network Accesses; Inter

    32、face Protocol Definition. ETSI TS 183 066 ETSI TS 183 066 V2.1.1 (2009), Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Network Attachment Sub-System (NASS); a4 interface based on the DIAMETER protocol. 2 Rec. ITU-T Q.3232 (08/2014) IETF RFC 4960 I

    33、ETF RFC 4960 (2007), Stream Control Transmission Protocol. IETF RFC 6733 IETF RFC 6733 (2012), Diameter Base Protocol. 3 Definitions 3.1 Terms defined elsewhere This Recommendation uses the following terms defined elsewhere: 3.1.1 authentication ITU-T Y.2014: A property by which the correct identifi

    34、er of an entity or party is established with a required assurance. The party being authenticated could be a user, subscriber, home environment or serving network. 3.1.2 location information b-ITU-T Q.1001: The location register should, as a minimum, contain the following information about a mobile s

    35、tation: international mobile station identity; actual location of the mobile station (e.g., PLMN, MSC area, location area, as required). 3.2 Terms defined in this Recommendation None. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: ABNF Augmented Backu

    36、s-Naur Form AM-PE Access Management Physical Entity ATM Asynchronous Transfer Mode AVP Attribute-Value Pair CPE Customer Premises Equipment DHCP Dynamic Host Configuration Protocol FQDN Fully Qualified Domain Name GPRS General Packet Radio Service GTP GPRS Tunnelling Protocol HDC-PE Handover Decisio

    37、n and Control Physical Entity HGW Home Gateway HGWC-PE Home Gateway Configuration Physical Entity IANA Internet Assigned Numbers Authority ID Identifier IP Internet Protocol IPsec IP security MLM-PE Mobile Location Management Physical Entity MMCE Mobility Management Control Entity MPLS Multi-Protoco

    38、l Label Switching MSC Mobile Switching Centre Rec. ITU-T Q.3232 (08/2014) 3 NACE Network Attachment Control Entity NACF Network Attachment Control Functions NAC-PE Network Access Configuration Physical Entity NID-PE Network Information Distribution Physical Entity NIR-PE Network Information Reposito

    39、ry Physical Entity PD-PE Policy Decision Physical Entity PLMN Public Land Mobile Network PPP Point-to-Point Protocol QoS Quality of Service RACE Resource Admission and Control Entity SCE Service Control Entity SCTP Stream Control Transmission Protocol TAA-PE Transport Authentication and Authorizatio

    40、n Physical Entity TE Terminal Equipment TLM-PE Transport Location Management Physical Entity TRC-PE Transport Resource Control Physical Entity TUP-PE Transport User Profile Physical Entity UE User Equipment VC Virtual Channel VCI Virtual Channel Identifier VP Virtual Path VPI Virtual Path Identifier

    41、 VPN Virtual Private Network 5 Conventions None. 6 Nc interface 6.1 Overview The Nc reference point allows the TLM-PE to register the association between a subscriber and the corresponding preferences regarding the privacy of location information provided by the TAA-PE. Reference point Nc is also us

    42、ed to register transport resource subscription information. The TLM-PE may retrieve the transport resource subscription information from the TAA-PE. Interactions between the TAA-PE and the TLM-PE may be in the pull mode or the push mode operations. The push mode is used when the TAA-PE is involved i

    43、n the processing of the network access requests in order to authorize or deny access to the network (e.g., when explicit authentication is used). The pull mode is used when implicit authentication is used or in support of TLM-PE recovery procedures. 4 Rec. ITU-T Q.3232 (08/2014) The following inform

    44、ation flows are used on the Nc reference point: transport resource information indication; transport resource information request; transport resource information response; transport resource release notification. 6.2 Nc reference model Figure 6-1 shows the reference architecture where the Nc interfa

    45、ce is located. Figure 6-1 Nc reference model 6.3 Physical entities and capabilities 6.3.1 Transport location management physical entity The TLM-PE responds to location queries from service control functions and applications. The actual information delivered by TLM-PE may take various forms (e.g., ne

    46、twork location, geographical coordinates, postal address) depending on the agreement with the requester and on user preferences regarding the privacy of its location. The TLM-PE may play several roles, i.e., the home role, the local role, or both. In its home role, the TLM-PE stores a pointer to the

    47、 TLM-PE instance that is playing the local role for the attachment. The current location information of the user/customer premises equipment (CPE) in the access domain is stored and bound in the local TLM-PE. Thus, when the user/CPE moves in the same access domain, only the location binding informat

    48、ion of the local TLM-PE needs to be updated; the location binding information of the home TLM-PE does not need to be updated. The local TLM-PE is in the access network to which the terminal equipment (TE) is attached. The home TLM-PE is in the network designated by the transport user profile physica

    49、l entity (TUP-PE). Where these networks differ, communication between the local and the home TLM-PE instances takes place over the Ng reference point. Namely, the home TLM-PE may provide the service control entity (SCE) with user network profile information through the local TLM-PE of visit network to support mobility when the user is nomadic. Similarly, the home TLM-PE is able to provide the SCE with user network profile information through the local TLM-PE of another service provi


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