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Latest Mobile Radio Services and Associated R&D Activities

Latest Mobile Radio Services and Associated R&D Activities. Hideyuki Shinonaga KDDI R&D Laboratories (shinonaga@kddilabs.jp) Ohara 2-1-15, Kamifukuoka, Saitama, 356-8502, Japan. CDMA2000 1x Advantage: Backward Compatibility with cdmaOne (IS-95). cdmaOne (IS-95) BTS. CDMA2000 1x BTS.

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Latest Mobile Radio Services and Associated R&D Activities

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  1. Latest Mobile Radio Services and Associated R&D Activities Hideyuki Shinonaga KDDI R&D Laboratories (shinonaga@kddilabs.jp) Ohara 2-1-15, Kamifukuoka, Saitama, 356-8502, Japan

  2. CDMA2000 1xAdvantage: Backward Compatibility with cdmaOne (IS-95) cdmaOne (IS-95) BTS CDMA2000 1x BTS cdmaOne (IS-95) - mode CDMA2000 1x - mode CDMA2000 1x handset cdmaOne (IS-95) handset cdmaOne (IS-95) – mode enables • (i) gradual CDMA 2000 1x introduction, and • (ii) continuous use of legacy handsets.

  3. cdmaOne boards CDMA2000 1x boards CDMA2000 1x Network Deployment: Upgrade vs. Overlay cdmaOne RAN Upgrade Overlaid CDMA2000 1x Deployment Pros: No essential modification required for the cdmaOne devices. Cons: More CAPEX needed. Pros: Less CAPEX needed. Cons: cdmaOne software including the management system should be modified. RAN: Radio Access Network, CAPEX: Capital Expenditure KDDI has adopted the upgrade approach to minimize cost and to utilize the current management system as much as possible.

  4. CDMA (Evolution) (Revolution) au’s Scenario for Mobile Data Services aulaunched in April 2002 auto launch in 2003 CDMA2000 1x CDMA2000 1x EV-DO cdmaOne 64 kbit/s Packet (1.25 MHz Bandwidth) 144 kbit/s Packet (1.25 MHz Bandwidth) 2.4 Mbit/s max. Packet (1.25 MHz Bandwidth) NTT-DoCoMo launched in October 2001 TDMA GSM/GPRS or PDC W-CDMA 384 kbit/s Packet (5 MHz Bandwidth) 9.6-28.8 kbit/s Packet (50 kHz Bandwidth)

  5. KDDI’s Vision to Fixed-Mobile Service Convergence Access Means • cdmaOne/CDMA2000 1x Voice and Low-Speed Data, supporting wide coverage area • CDMA2000 1x EV-DO Best-Effort High-Speed Data, supporting wide coverage area • W-LAN Very-High-Speed Wireless Data in limited coverages • ADSL High-Speed Wired-Line Data • FTTH Very-High-Speed Wired-Line Data ADSL FTTH Cellular Wired-Line Broad-Band Internet Access （Mobile Internet） Convergence Service Portability across DION andau

  6. KDDI’s Vision to Fixed-Mobile Network Convergence • Service Portability across FTTH/ADSL W-LAN and Mobile, by using common backbone networks and application servers IP backbone MobileAccess FTTH/ ADSL • SNMP-based network management for all IP networks W-LAN Coordinated Control and Management

  7. BroadbandAccess Server ISP 1 PPPoE Radius may use IEEE802.1x Radius Layer2 Access Network IP core ISP 2 IPsec / PPTP(end-to-end) Radius Gateway DHCP Public Wireless LAN Network Management • Several authentication methods are used for so-called “hotspot” services by Wireless ISPs. • ping • SNMP • Web-based Radius: Remote Authentication Dial-In User Services • PPP over Ethernet • Users simply be treated like ordinary DSL subscribers • No special features be required for W-LAN networks • PPPoE client software should be installed on user’s PC • Gateway (DHCP) • Web-browser usually be used for UID / PWD input • Gateway be used for assigning IP address and bandwidth control • No client software be required • IEEE802.1x • Port-based access control • 802.1x client software should be installed on user’s PC • Encryption keys for W-LAN can be changed dynamically

  8. Seamless Communications among Heterogeneous Media (R&D phase)

  9. ITS Smart Gateway R&D Project Network Architecture Special network configuration with servers provide continuous services across DSRC spots ITS Center Agent System IP Applications Router Network Address Information Cellular / Broadcasting LR XML Address Registration & Management Route Control Handover Technique for Roadside-Vehicle Communications Systems G/W G/W Roadside Network Roadside Network Cruise-Assist Service DSRC f1 f2 f1 30 meter

  10. Handover Protocols for Road-to-Vehicle Communications Systems FCMC： Frame Control Message Channel ACTC： Activation Channel MDC： Message Data Channel BST： Beacon Service Table VST： Vehicle Service Table FID： Fixed Equipment Identifier LID： Link Address SEQ： Sequence Number Handover protocol supports continuous communications among multiple Base Stations (BS) or Zones by transferring handover data managed in MAC and LLC sub-layers.

  11. Address Registration and Management

  12. Internet Contents ITS Seamless Communications by Mobile Router (R&D phase) ITS seamless communications among heterogeneous wireless media ・Key technologies：(1) Mobility management by mobile-IP based mobile router, (2) Selection of optimum wireless media, (3) QoS management, (4) Account & securitymanagement among multiple network operators cdmaOne /CDMA2000 1x PC IP camera cdmaOne /CDMA2000 1x Network Wireless LAN Network Wireless LAN DSRCNetwork Mobile Router Car navigation DSRC PDA Devices in Vehicle

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