Question 9/13 - Mobility management (including support for software-defined networking)
(Continuation of Question 22/13)
Motivation
Towards the ultimate migration to interoperable and harmonized network architectures, there is an industry requirement to provide global roaming and seamless mobility for the users of different access technologies and/or different operators so that they can enjoy seamless services while moving within or across networks. The work on mobility management (MM) is based on the requirements established in Recommendations ITU-T Q.1706/Y.2801, Q.1707/Y.2804 and Q.1762/Y.2802.
In order to support mobility and feature ubiquity in various scenarios in the scope of SG 13, it is necessary to first identify the issues and challenges concerning MM in evolving IMT and NGN, as well as other networks (including support for software-defined networking - SDN) within the mandate of SG 13.
Based on this identification study, the work will focus on developing common and generic building blocks of MM for service continuity over various heterogeneous systems and networks studied by SG 13, while harmonizing with area-specific technologies covered by individual other Questions.
The overall work includes all aspects required in terminals, customer networks, access networks (both wired and wireless), core networks and application service networks. The outputs from this Question would be referred and used by the other Questions as a common framework to support MM requirements for their specific work areas.
Recommendations under responsibility of this Question include:
Q.1706/Y.2801, Mobility management requirements for NGN
Q.1707/Y.2804, Generic framework of mobility management for NGN
Q.1708/Y.2805, Framework of location management for NGN
Q.1709/Y.2806, Framework of Handover Control for NGN
Q.1762/Y.2802, Fixed-mobile convergence general requirements
Q.1763/Y.2803, FMC service using legacy PSTN or ISDN as the fixed access network for mobile network users
Y.2808, Fixed mobile convergence with a common IMS session control domain
Y.2809, Framework of mobility management in the service stratum for NGN.
Ongoing draft Recommendations under responsibility of this Question can be found at:
Question
Study items to be considered include, but are not limited to:
What is needed to support global roaming, seamless mobility and delivery of services within or across both evolving IMT and NGN?
What is needed to provide access independent services across existing and evolving IMT and fixed networks?
What enhancements are required to provide energy savings directly or indirectly in information and communication technologies or in other industries?
What could be common and generic MM requirements to support mobility and feature ubiquity in emerging networks (including SDN) in the mandate of SG 13?
What is needed to develop common and generic MM frameworks to be referred and used for core capability of those emerging networks and services?
Tasks
Tasks include, but are not limited to:
Identify or define the user and operator’s perspective of MM capabilities for evolving IMT and NGN, as well as emerging networks (including SDN) and services in the scope of SG 13.
Define the functional requirements and suggest common design principles for the MM capabilities for those emerging networks and services.
Develop the general framework and the reference architecture including functional entities (FEs) and information flows required to provide the MM capabilities, which would be referred and used commonly by the other specific work areas.
Allocate the FEs to physical entities in order to determine which interfaces can use or enhance existing protocols and which interfaces need development of new protocols for the necessary MM capabilities.
Identify and study the applicability of convergence related standards in the context of the NGN architecture and MM requirements and documents these.
Identify and study architectural and network interface issues relating to MM specific functions in the overall NGN architecture, and documents these.
Relationships
The execution of tasks of this Question will require close coordination and collaboration with:
Recommendations:
Questions:
Study groups:
Standardization bodies:
3GPPs
IETF
IEEE
Broadband Forum
Other relevant bodies
