T-REC-Q.1706-200611-I!!PDF-E.pdf

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.1706/Y.2801 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (11/2006) SERIES Q: SWITCHING AND SIGNALLING Signalling requirements and protocols for IMT-2000 SERIES Y: GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS Next Generation Networks Generalized mobility Mobility management requirements for NGN ITU-T Recommendation Q.1706/Y.2801 ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE 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 EXCHANGES 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 INTELLIGENT 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 For further details, please refer to the list of ITU-T Recommendations. ITU-T Rec. Q.1706/Y.2801 (11/2006) i ITU-T Recommendation Q.1706/Y.2801 Mobility management requirements for NGN Summary This Recommendation describes the requirements for mobility management (MM) for Next Generation Networks (NGN). For this purpose, this Recommendation describes the considerations for mobility management in the NGN, classifies the types of mobility management for NGN environment, and identifies a set of the MM requirements for NGN. Source ITU-T Recommendation Q.1706/Y.2801 was approved on 6 November 2006 by ITU-T Study Group 19 (2005-2008) under the ITU-T Recommendation A.8 procedure. Keywords Mobility management requirements, NGN, Systems beyond IMT-2000. ii ITU-T Rec. Q.1706/Y.2801 (11/2006) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. 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 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 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 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 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 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 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, protected 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 2007 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. ITU-T Rec. Q.1706/Y.2801 (11/2006) iii CONTENTS Page 1 Scope . 1 2 References. 1 3 Definitions. 1 4 Abbreviations. 2 5 Introduction . 3 6 Considerations for mobility management in NGN. 3 6.1 Network environments . 3 6.2 General mobility management features. 4 6.3 Considerations on user part. 6 6.4 Mobility management functionalities. 8 7 Classification of mob