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Core Network Technology Prof. Hamid Aghvami

Core Network Technology Prof. Hamid Aghvami Centre for Telecommunications Research - King’s College London Wireless Multimedia Communications Ltd. Outline of Presentation. Fixed IP-based Core Networks. Mobile Core Networks. IP-based IMT Network Platform( IP 2 ).

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Core Network Technology Prof. Hamid Aghvami

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  1. Core Network Technology Prof. Hamid Aghvami Centre for Telecommunications Research - King’s College London Wireless Multimedia Communications Ltd

  2. Outline of Presentation • Fixed IP-based Core Networks • Mobile Core Networks • IP-based IMT Network Platform( IP2 ) • Research Challenges • Inter-working Issues • Co-operation between UK and Japan

  3. IP-based Fixed Network • One of the priority policy areas of the government-led “e-Japan” • programme is the establishment of an ultra high-speed network • infrastructure. • It has set goals to provide 24-hour connection to high-speed Internet • access networks for at least 30 million households and ultra high-speed • Internet access networks (30-100 Mb/s) for 10 million households • within 5 years. • It has also set a deadline of 2005 for the deployment of IPv6 in all public • and private networks. • The government has lowered the tax on IPv6 equipment. • All IP equipment currently manufactured by Japanese manufacturers has • dual protocol stacks, both IPv4 and IPv6. • The R&D activities in IP-based networks are founded on the recent IETF • protocols and recommendations.

  4. Mobile Networks Beyond 3G 1G 2G 3G Phase I (3.5G) Phase II (4G) USA AMPS ANSI-41 Evolved ANSI-41 Evolved ANSI-41 Japan MCS PDC IMS Evolved GSM/GPRS Evolved GSM/GPRS NMT Europe GSM/GPRS TACS IP2 Internet IPV6 IPV4 Evolution of Mobile Networks and Internet

  5. IP2 Ad-Hoc Study Group ITU-R WP8F ITU-T IMT SSG 3GPPs, WWRF, IETF ARIB TTC Long-term All IP Conference (Telecommunication Technology Committee) (Association of Radio, Industry and Business ) Radio Experts IT/NW Experts IP2 Ad-Hoc Study Group Structure

  6. IP2 Ad-Hoc Study Group Chairman: Dr. Masami YABUSAKI (NTT DoCoMo) Vice-chairmen: Mr. Kazuyoshi SATO (Mitsubishi) Dr. Masayoshi OHASHI (KDDI) Member Companies; NTT DoCoMo, Inc., Toshiba Corporation, KDDI Corporation, Seiko Epson Corporation, J-Phone Co., Ltd., Sony Corporation, Nippon Ericsson K.K. KYOCERA Corporation, Fujitsu Limited, Mitsubishi Electric Corporation, Lucent Technologies Japan Ltd., CRL, NEC Corporation, NTC(Nippon Telecommunications Consulting Nippon Motorola Ltd.,Co., Ltd.), Nokia-Japan Co., LTD., NTT SOFT, NTT, QUALCOMM JAPAN, OKI Electric Industry Co., Ltd., DENSO Corporation, SHARP Corporation, Hitachi Ltd., Siemens K.K. NTT Communication Corporation. Matsushita Communication Industrial Co., Ltd

  7. IP-based IMT Network Platform IP-based IMT Network Platform ( IP2 ) main requirements: • Huge multimedia traffic handling. • Diversified radio access support. • Advanced mobility management. • Seamless/ubiquitous services

  8. IP-based IMT Network Platform Applications AP2 AP3 APn AP1 Middleware Service support sub-layer Location Accounting/billing Media conversion Distribution Basic network management sub-layer RRM MM C/SM Security QoS ISDN/ PSTN IP-based transport NW IP IP IP IP Internet Radio IP IP Radio IP Radio General architecture of the IP-based IMT network platform

  9. Research Challenges • Full integration and convergence of mobile and Internet networks. • - Common mobility management • - Efficient and dynamic re-routing within the Internet for moving terminals • Separation of location management and routing management • Design of middleware layer • - Separation of basic network control from transport • Interaction between service support sub-layer and applications and • between service support and basic network management sub-layers. • No separation between RAN and CN. • Common interface between radio resource management and other • network control entities

  10. Research Challenges “ The greatest challenge is not a technical one; it is how to influence the IETF to adopt the common protocols and functionalities required for IP2 . Radical changes to existing IETF protocols and the IP layer model will be required.”

  11. Inter-working Issues • The inter-working of WLAN and 3G cellular networks is fully recognised • and some study and research work have already been carried out. • Although the benefit of inter-working between broadcast and cellular • networks has been recognised, no research activities have yet been • announced or reported. • The use of WLAN equipment based on IEEE 802.11b is common in Japan • within private networks and it seems that IEEE 802.11a will follow it. • Recently, NTT Communications Corp. has launched its WLAN public • services.

  12. Co-operation between UK and Japan • Co-operation was proposed between UK and Japan in the areas of: • - Future network vision and its general requirements. • - Evolution scenario from IMT-2000 networks. • - Common global standardisation organisations and schedules. • Co-operation was also proposed between the IP2 Ad Hoc Study Group and • Mobile VCE.

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