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Wireless ambitions

Wireless ambitions. Frans Panken I2 Spring meeting 24 april 2012. World wide explosion of mobile data Source: Cisco VNI mobile 2012. Global mobile data traffic grew 2.3-fold in 2011, more than doubled for the 4 th year in a row.

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Wireless ambitions

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  1. Wireless ambitions • Frans Panken • I2 Spring meeting 24 april 2012

  2. World wide explosion of mobile dataSource: Cisco VNI mobile 2012 • Global mobile data traffic grew 2.3-fold in 2011, more than doubled for the 4th year in a row. • In 2011 mobile data traffic = 8x size of the entire global Internet in 2000 • In 2011 mobile network connection speeds grew 66 percent • In 2011, 4G connections ~ 0.2% but responsible for 6% of mobile traffic • Smartphones = 12% of global handsets (in NL: > 50%) but responsible for 82% global handset traffic

  3. Mobile data in the Netherlands • 16,5 million inhabitants; 22 million mobile subscribers • Currently: 3 mobile operators: KPN, Vodafone, T-mobile • LTE frequencies • May 2010: 2,6 Ghz, 5 companies • Dutch regulator favors competition: privileges fornew mobile operators • New frequency auctions in October 2012: 800Mhz, 1800 Mhz, 2100 Mhz, 2600 Mhz • The Dutch send ~ 4.5 MBmobile traffic per personper day (32TB/day in total)

  4. Data hungry devices Source: Cisco VNI mobile 2012 Basic phone 4.3 MB/month = 1x Smart phone 150 MB/month = 35x Tablet 517 MB/month = 120x = 488x Laptop 2.1 GB/month

  5. SURFnet’s public mobile ambitions • Towards mobile privileges for people @ higher education and research institutes • Towards a solution applicable to several mobile operators • Towards a solution that can be applied to all education and research centers • Complementary to Wi-Fi connectivity • Start with data only. Voice may follow … • High-level approach: make use of existing assets • Network for off-loading mobile traffic • Authentication infrastructure for identifying members of the community

  6. Radio challenges R&E radio requirements

  7. Format evolution 1990-2012

  8. 4G eduroam Pilot

  9. Status of our 4G pilot • Aim at covering the complete value chain: mobile operator- SURFnet – use cases at institutions • Agreement with KPN signed (October 2011) • LTE antenna’s & equipment placed at Utrecht science park (December 2011) • LTE network operational: end of April 2012 • Agreement with LG for delivery of 4G-enabled devices: start with 30 LTE-optimus devices • Various use cases at various institutions

  10. 9 km (5.6 mi) Antenna location 6 km (3.7 mi) Utrecht Science Park Coverage Pilot Area

  11. Many questions addressed in the 4G pilot • What is the added value of a fully 4G coverage on the campus for educational purposes? • How does it stimulate the new working and learning? Which applications can be used now, that couldn’t be used before? Does it enable better cooperation among students and teachers? What new educational developments does it start? • Is the 4G service comparable with the eduroam (Wi-Fi) service and can we provide “seamless roaming”? • How should the eduroam/3/4G infrastructures best be integrated? • What are the characteristics of IPv6 on 4G • Can we use the smart card for access to federated service? • …..

  12. Worldwide LTE trials & deployments LTE trials Commercial LTE deployments

  13. LTE in Europetrials & deployments LTE trials Commercial LTE deployments

  14. LTE frequencies

  15. 4 generations of mobile phone designs 1983: 1G 1992: 2G 2005: 3G 2013: 4G? Motorola “The Brick” GSM goes global UMTS smart phone LTE “hedgehog” 5 carriers 8x8 + 4x4 MIMO

  16. SURFnet’s LTE building blocks • Institutional traffic • Transparent tunnel from KPN to the institution • Generic traffic • SURFnet routes traffic to destination, on behalf of institution

  17. Institutional traffic Eduroam AAA AAA AAA EPC AAA Research / education center

  18. Generic traffic Inter net DHCP AAA EPC AAA Research / education center

  19. Access via eduroamVisiting users Securedtunnel Supplicant Authenticator (AP of switch) RADIUS server Institute A RADIUS server Institute B User DB User DB Guest piet@institute_B.nl SURFnet other VLAN employees VLAN Central RADIUS Proxy server Student VLAN • Trust based on RADIUS supported by policy documents • 802.1X • (VLAN assignment) signalering data

  20. Access via LTEInstitutional traffic SURFnet LTE Supplicant Authenticator @institute A RADIUS server Institute A User DB • LTE used as access network • making use of institute credentials • Assignment policy equal to eduroam piet@uni_a.nl other VLAN employees VLAN Student VLAN signalering data

  21. Access via LTEGeneral traffic Authenticator @SURFnet LTE Internet SURFnet Supplicant RADIUS server Proxy server RADIUS server Institute B User DB Securedtunnel Guest piet@institute_B.nl • Trust based on RADIUS supported by policy documents • SURFnet routes traffic to the interneton behalf of institute B signalering data

  22. eduroamvs 4G eduroamOverview AAA AAA AAA proxy eduroam User DB NREN home institute Visiting institute Internet AAA AAA 4G generic traffic NREN User DB home institute Mobile operator Internet AAA proxy AAA 4G institu- tional traffic NREN User DB home institute Mobile operator Internet

  23. Two network building blocks

  24. Next steps…. • Design document, reflecting technical solution • Implement both solutions & evaluate trough trials with institutes • Towards a validated technical blue print • Towards a sustained business case: who’s paying whom? • Incorporating other operators • Expanding with another campus

  25. Questions..?

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