1. 4G and eduroam: opportunity for wireless success Maurice van den Akker Team Manager Mobility SURFnet

2. Agenda Wireless trends in the Netherlands 4G and eduroam both as access network In practice: 4G eduroam pilot

3. Researchers, instructors, and students work together simply and effectively with the aid of –mobile– ICT SURFnet Mission statement

4. Exponential use of eduroam in NL SURFnet - We make innovation work 4 Shows non-local eduroam Wi-Fi users (monthly)

5. eduroam coverage in NL SURFnet - We make innovation work 5

6. Cellular trends in NL SURFnet - We make innovation work 6 Source: opta

7. Format evolution 1990-2012 7

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

9. Some issues with LTE frequencies BandUplink [Mhz]Downlink[Mhz]Country 11920 - 19802110 - 2170Japan, Europe, Asia 21850 - 19101930 - 1990Can, USA, Latin America 31710 - 17851805 - 1880Finland, Germany 41710 - 17552110 - 2155Canada, USA, Latin America 5824 - 849869 - 894Canada, USA, Latin America, Australia, South Korea 6830 - 840875 - 885Japan 72500 - 25702620 - 2690EU, Latin America, South-Korea, Canada 8880 - 915925 - 960EU, Latin America 91749.9 - 1784.91844.9 - 1879.9Japan 101710 - 17702110 - 2170Uruguay, Ecuador, Peru 111427.9 - 1447.91475.9 - 1495.9Japan 12699 - 716729 - 746USA 13776 - 787746 - 757USA (Verizon) 14788 - 798758 - 768USA 17704 - 716734 - 746USA (AT&T) 18815 - 830860 - 875USA (Sprint) 19830 - 845875 - 890 20832 - 862791 - 821EU 211447.9 - 1462.91495.9 - 1510.9 223410 - 34903510 - 3590 2000 - 20202180 - 2200 231626.5 - 1660.51525 - 1559 241850 - 19151930 - 1995 251920 - 19802110 - 2170 9

10. LTE speeds 10 Source: deadcellzones

11. Worldwide LTE (“4G”) developments trials & deployments 11 LTE trialsCommercial LTE deployments

12. LTE in Europe trials & deployments 12 Source: Analysis Mason (GÉANT mobility feasibility study)

13. Opportunity: eduroam and 4G! SURFnet - We make innovation work 13 SURFnet - We make innovation work

14. Cellular to Wi-Fi offload estimates

15. Business Scenarios for SURFnet 15 3G/4G WLANOptical

16. Vision: 4G/LTE and eduroam both as access network for campus 16 SURFnet Internet Campus  Challenge: users need to experience seamless roaming between Wi-Fi and LTE

17. 4G and eduroam seamless integrated access network: the advantages 17 Allow students, researchers and employees to collaborate, research, learn anytime and anywhere they seem fit! Transparent wireless internet access via NREN Carefree, Trusted and Safe connectivity Technology Agnostic campus (WiFi/4G/3G…) Possible integration with campus services (e.g. UC) Good basis for cloud and federative services Opportunity to gather demand for optimum LTE price-quality ratio

18. 4G+eduroam Building blocks schematic overview 18 SURFnet Visiting institute AAA proxyAAA User DB Internet home institute eduroam SURFnet Mobile operator AAA proxyAAA User DB Internet home institute generic institutional SURFnet Mobile operator AAA User DB Internet home institute AAA proxy

19. LTE+eduroam: building blocks Two building blocks: 1.Institutional traffic -Transparent tunnel from LTE to Layer2-infra at the institute 2.Generic traffic -LTE direct connected to the internet, via the SURFnet-backbone 19

20. Features building blocks compared FeatureInstitutional traffic Generic traffic Default Telco LTE LTE can be regarded similarly as local Wi-Fi traffic YesNo Secure access based on eduroam credentials Yes No Internet access though SURFnetYes No IP address from instituteYes No Native integration with unified communication (voice, e-mail,…), local printing etc YesNo Allows monitoring of traffic, authentication YesPossiblePartly Allows strong demand aggregation Yes Partly 20

21. In Practice: Pilot 4G eduroam for Education & Research 21

22. 22 Utrecht Science Park Coverage (20 m 2 ) Antenna location 6 km (3.7 mi) 9 km (5.6 mi) Pilot Area

23. Huge Media attention SURFnet - We make innovation work 23

24. 24 Goals of 4G eduroam pilot 1.Build and share knowledge, determine added value of 2.6 Ghz LTE networks in education and research environments 2.Develop technical architecture and test environment for integration of LTE and eduroam 3.Encourage development of mobile apps for education and research, using LTE/eduroam/federative concepts 4.Get input for tendering a combined eduroam and 4G/3G service for customers B2C and B2B with the following features: -Provider 4/3G coverage (inter)national -Use of eduroam credentials for network-access -Offloading to eduroam Wi-Fi on “hotspots” and campuses -Use capacity of SURFnet backbone -Potential of one million users -Integrated with campus services (e.g. Library service, UC)

25. Many questions to address… 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? Does it save costs, improve quality or both? 25

26. 4G trials at the institutes Veterinary Medicine @ University of Utrecht -Assessment during clinical operations in the field (mobile access to ePASS) -Remote supervision during clinical operations -Consulting literature, study material Journalism @ Hogeschool Utrecht -Camera and location for education course UMCU -Integration in Distributed Antenna system (Wi-Fi / LTE roaming) and user experience -Streaming video to monitor alarms in Intensive Care -Web lectures via 4G SURFnet - We make innovation work 26

27. Status of our 4G eduroam pilot LTE Service up and running (since May 11 th, 2012) LG Optimus LTE Smartphone devices expected this week + Dongles Research questions for the first pilot worked out 4G eduroam architecture in progress (next slides) Q3: - 4G trial inside SURFnet offices - Architecture 4G eduroam implemented - Start trial with Utrecht Medical Hospital. Q4:- Start trial with Hogeschool Utrecht 2013: Involve another campus, test roaming 2012: New developments: New operator, new campus! 27

28. Building blocks schematic overview 28 SURFnet Visiting institute AAA proxyAAA User DB Internet home institute eduroam SURFnet Mobile operator AAA User DB Internet home institute generic SURFnet AAA User DB Internet home institute institutional AAA proxy Mobile operator

29. uu.surfnet.nl umcu.surfnet.nl hu.surfnet.nl surfnet. surfnet.nl internet. surfnet.nl AAA (Radius) APN VLAN 1 VLAN 2 VLAN 3 VLAN 4 VLAN 5 AAA (Radius) Internet SURFnet HU UMCU UU NetherLight Operator domainSURFnet domain Domain home institute VLAN 0 LP / E-LAN

30. APN Radius client Radius Proxy Radius Proxy Operator domainSURFnet domain Domain home institute 1. Access trigger (username@ home_institute) 2. forward (username@ home_institute) 3. Access-Request (username@ home_institute, tel#, IMEI, IMSI, APN_name) 4. Access-Request (username@home_institute, tel#) 5. Access-Accept (IP address) 6. Access-Accept (IP address) 7. Access-Accept (IP address) 7. Access granted 8. Establisch PDP context 9. trigger 10. Accounting-Request (IP address) 11. Accounting-Response() Resolve Tel.#,IMSI,IMEI check if APN_name corresponds with realm of home institute check if username corresponds with username 12. Accounting-Request (IP address) 13. Accounting-Response() Auth. Only!

31. Conclusions There is a role for NRENs in 4G to enable learning and researching everywhere Operators seem interested in the educational market and also Wi-Fi offloading techniques. Opportunity to cooperate 4G/LTE as complementary access network for campuses seems like a good way to go 4G can be great add-on for non-WiFi locations (and vice versa), but roaming has to be as seamless as possible Gathering demand for a specific ‘4G eduroam’ service can assure a transparent, safe accessible wireless internet for our users Cooperate within GEANT for pan-european mobile service 31

32. W Maurice.vandenAkker@surfnet.nl http://www.linkedin.com/pub/maurice-van-den-akker/32/1a0/944 http://www.surfnet.nl +31 30 2 305 305 Creative Commons “Attribution” license: http://creativecommons.org/licenses/by/3.0/