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Seamless Connectivity in ASK-IT

Seamless Connectivity in ASK-IT. Wilfried Speltacker Lucent Technologies wspeltacker@lucent.com. Accessible Europe. ASK-IT shall be deployed in 8 European countries. MI users shall have seamless access to all services and tools, regardless of the country.

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Seamless Connectivity in ASK-IT

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  1. Seamless Connectivityin ASK-IT Wilfried Speltacker Lucent Technologieswspeltacker@lucent.com 26-27 October 2006, Nice, France

  2. Accessible Europe • ASK-IT shall be deployed in 8 European countries. • MI users shall have seamless access to all services and tools, regardless of the country. • They should be able to travel between all sites, without loosing service. • Therefore they need access to local UMTS/GPRS networks as well as to all ASK-IT supporting public WLAN hot-spots in order to contact the next ASK-IT server. • A uniform solution for all planned and future sites is needed. 26-27 October 2006, Nice, France

  3. System Overview • To connect to the local or home ASK-IT server, the MI user needs a local (wireless) access network and sometimes also a separate account at an (local) ISP. • Candidates of wireless access networks are the PLMN (UMTS/GPRS) and local WLAN hot-spots (preferably WPA for security reasons). ADAS Advanced Driver Assistive Systems IVICS In-Vehicle Information and Communication System PEDA Personal wearable Intelligent Device Agent MAS Multi Agent System 26-27 October 2006, Nice, France

  4. Fixed Network Account at PSTN operator required (ISDN number). ISP account for Internet access. PLMN Account at PLMN operator required (MSISDN number). Access ID (IMSI) stored on SIM card. AAA procedure at network attach (VLR/HLR). PDP context activation for data communication (with IP assignment). Public WLAN Totally free access →no authentication required (not very likely). With charging → AAA procedure necessary. AAA via IEEE 802.1x at WPA/WPA2 (Wi-Fi approved). With WEP (less secure), SSID and PSK needed. Private WLAN (via ADSL when at home) ADSL account with local telecom provider and ISP. At least WEP access point with PSK, hidden SSID and MAC filter. For more security WPA or WPA2 with local RADIUS server required. Access Options 26-27 October 2006, Nice, France

  5. Authentication • Access to a network is not for free and requires some kind of authentication and authorization! • How can ASK-IT users be identified in and get attached to visited access networks? • PLMN - Standardized by 3GPP • Subscription at major PLMN operator. • Unique name (MSISDN) and legal ID (IMSI). • Roaming agreement between visited and home PLMN operator. • Authentication via VLR/HLR (Visitor/Home Location Register) • Public WLAN (WPA) - Standardized by IEEE • Known user ID in respective RADIUS server, or • Resolvable user ID and verification in external authentication service(e.g. credit card organization) and • Unique user ID within respective name space. • Secure protocol for authentication and verification (EAP). • Centralized (at least logically) name service within service area. 26-27 October 2006, Nice, France

  6. PLMN/WPA Access ASK-IT (server specific) ASK-IT (server specific) ASK-IT (server specific) Services, Content MI ID Issuer Auth. Service ASK-IT Server Dyn. DNS Auth. Server (ASK-IT specific) Internet (EAP-TLS) BGW GGSN Core Network (EAP-TLS) Auth. Server RADIUS HLR VLR UMA (EAP-SIM) (non ASK-IT) (EAP) Access Network DHCP DHCP WLAN PLMN (WPA-TKIP) IMSI MI-ID PLMN specific elements MI User WLAN specific elements 26-27 October 2006, Nice, France

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