Mobility Management Research

The evolution of Next Generation Networks required an evolution in the mobility management support especially when multiple access networks of various technologies are sustained by the same network provider. Fraunhofer FOKUS has supported an extensive research on the mobility related issues starting with service mobility support for Fixed Mobile Convergence and end-to-end multimedia service continuity in the IMS architecture.

With the increasing establishment of the wireless access network technologies, dense wireless environments, in which the mobile devices are able to exchange data over more than one access network at specific locations, will become a reality. In order to face the new challenges in the emerging Next Generation Mobile Network architecture we are developing and extending components for both user mobility management in the area of access network discovery and selection and network mobility management in the area of network located mobility management.

In order to reduce the operational costs of the network providers and to be able to offer the Always Best Connected (ABC) feature to the mobile devices, the research of mobility management of Fraunhofer FOKUS includes the development of new concepts and solutions for:

• Harmonization of mobility management layers
• Access network off-load
• Multi-access and IP flow mobility
• Traffic steering
• Unified location mechanisms
• Dynamic access network discovery
• Mobile device support for mobility

Recognizing the further evolution of the network routing architecture towards a more flat and de-centralized one, NGNI research is now concentrating also on the further development of mobility management and support in such architectures as a network provided support service to ensure a seamless and reliable communication.

References:

M. Corici, D. Vingarzan, A. Diez, T. Magedanz, C. Pampu, Q. Zhou, “Enhanced Access Network Discovery and Selection in 3GPP Evolved Packet Core”, IEEE LCN On-Move Workshop, Zurich Switzerland, October 2009

M. Corici, F. Gouveia, T. Magedanz: “A Network Controlled QoS Model over the 3GPP Evolved Packet Core”, Chapter 12, pp. 255-275 in “Advances in Broadband Communication and Networks”, Editors: J.I. Agbinya, et.al., River Publishers Series in Communications; ISBN: 978-87-92329-00-4 (c) 2008 River Publishers, Denmark, September 2008

Corici M., Murarasu A., Arbanowski S., Magedanz T., Suwon Lee, Xiaoyu Liu, “Multimedia Mobility Service Solution”, Vehicular Technology Conference, 2008. VTC 2008-Fall. IEEE 68th, Calgary Canada, September 2008

Floroiu J., Corici M., Arbanowski S., Magedanz T., Suwon Lee, Xiaoyu Liu, “An Architecture for Resource Management in IMS Wireless Access Networks”, Communications Workshops, 2008. ICC Workshops '08. IEEE International Conference on, Beijing China, May 2008

Corici, M. I.; Gouveia, F. C.; Magedanz, T. “A Network Controlled QoS Model over the 3GPP System Architecture Evolution”, Second Australian Conference on Wireless Broadband and Ultra Wideband Communications - AusWireless 2007, Crowne Plaza Hotel, Sydney, Australia, 27-30 August 2007

Floroiu J., Corici M., Byoung-Joon Lee, Suwon Lee, Arbanowski S., Magedanz T., “A Vertical Handover Architecture for End-to-End Service Optimization”, Mobile and Wireless Communications Summit, 2007. 16th IST, Budapest Hungary, July 2007

Public Available Patents and Patent Proposals:

Xiaoyu Liu, Suwon Lee, Byung Suk Kim, Byoung-Joon Lee, Corici Marius, “APPARATUS FOR DISTRIBUTING DATA TRAFFIC IN HETEROGENEOUS WIRELESS NETWORKS”, US Patent Application, US 2009/0190524, May 2008

Lee Suwon, Liu Xiaoyu, Floroiu John, Jung Eun Sun, Jang Hee Jin, Corici Marius, Lee Byoung-joon, “SERVICE HANDOVER CONTROL APPARATUS USING AN END-TO-END SERVICE HANDOVER AND METHOD USING THE APPARATUS”,  US Patent Application US 2008/0167045, November 2007

Liu Xiaoyu, Lee Su Won, Corici Marius, Murarasu  Alin, Arbanowski Stefan, “MOBILE TERMINAL AND NETWORK DEVICE FOR PROVIDING HANDOVER SERVICE”, US Patent Application US 2009/0270102, December 2008