TNC 2012: 4g and eduroam

4G and eduroam: opportunity for wireless success

Maurice van den Akker

Team Manager Mobility SURFnet

Agenda

• Wireless trends in the Netherlands

• 4G and eduroam both as access network

• In practice: 4G eduroam pilot

Researchers, instructors, and students work together simply and effectively

with the aid of –mobile– ICT

SURFnet Mission statement

Exponential use of eduroam in NL

SURFnet - We make innovation work 4

Shows non-local eduroam Wi-Fi users (monthly)

eduroam coverage in NL

SURFnet - We make innovation work 5

Cellular trends in NL

SURFnet - We make innovation work 6

Source: opta

Format evolution 1990-2012

7

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

Some issues with LTE frequencies Band Uplink [Mhz] Downlink[Mhz] Country 1 1920 - 1980 2110 - 2170 Japan, Europe, Asia 2 1850 - 1910 1930 - 1990 Can, USA, Latin America 3 1710 - 1785 1805 - 1880 Finland, Germany 4 1710 - 1755 2110 - 2155 Canada, USA, Latin America 5 824 - 849 869 - 894 Canada, USA, Latin America,

Australia, South Korea 6 830 - 840 875 - 885 Japan 7 2500 - 2570 2620 - 2690 EU, Latin America, South-Korea,

Canada 8 880 - 915 925 - 960 EU, Latin America 9 1749.9 - 1784.9 1844.9 - 1879.9 Japan 10 1710 - 1770 2110 - 2170 Uruguay, Ecuador, Peru 11 1427.9 - 1447.9 1475.9 - 1495.9 Japan 12 699 - 716 729 - 746 USA 13 776 - 787 746 - 757 USA (Verizon) 14 788 - 798 758 - 768 USA 17 704 - 716 734 - 746 USA (AT&T) 18 815 - 830 860 - 875 USA (Sprint) 19 830 - 845 875 - 890

20 832 - 862 791 - 821 EU 21 1447.9 - 1462.9 1495.9 - 1510.9

22 3410 - 3490 3510 - 3590

2000 - 2020 2180 - 2200

23 1626.5 - 1660.5 1525 - 1559 24 1850 - 1915 1930 - 1995 25 1920 - 1980 2110 - 2170 9

LTE speeds

10

Source: deadcellzones

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

11 LTE trials Commercial LTE deployments

LTE in Europe trials & deployments

12

Source: Analysis Mason (GÉANT mobility feasibility study)

Opportunity: eduroam and 4G!

SURFnet - We make innovation work 13

SURFnet - We make innovation work

Cellular to Wi-Fi offload estimates

Business Scenarios for SURFnet

15

3G/4G

WLAN Optical

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

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

4G+eduroam Building blocks schematic overview

18

SURFnet Visiting institute

AAA proxy AAA AAA

User DB

Internet

home institute

eduroam

SURFnet Mobile

operator

AAA proxy AAA

User DB

Internet

home institute

generic

institutional SURFnet

Mobile operator

AAA

User DB

Internet

home institute

AAA proxy

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

Features building blocks compared

Feature Institutional traffic

Generic traffic

Default Telco LTE

LTE can be regarded similarly as local Wi-Fi traffic

Yes No No

Secure access based on eduroam credentials

Yes Yes No

Internet access though SURFnet Yes Yes No

IP address from institute Yes Yes No Native integration with unified communication (voice, e-mail,…), local printing etc

Yes No No

Allows monitoring of traffic, authentication

Yes Possible Partly

Allows strong demand aggregation

Yes Yes Partly

20

In Practice: Pilot 4G eduroam for Education & Research

21

22

Utrecht Science Park Coverage (20 m2)

Antenna location

6 km (3.7 m

i)

9 km (5.6 mi)

Pilot Area

Huge Media attention

SURFnet - We make innovation work 23

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)

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

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

Status of our 4G eduroam pilot

• LTE Service up and running (since May 11th, 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

Building blocks schematic overview

28

SURFnet Visiting institute

AAA proxy AAA AAA

User DB

Internet

home institute

eduroam

SURFnet Mobile

operator

AAA AAA

User DB

Internet

home institute

generic

SURFnet

AAA

User DB

Internet

home institute

institutional AAA proxy

Mobile operator

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 domain SURFnet domain Domain home institute

VLAN 0

LP / E-LAN

LP / E-LAN

LP / E-LAN

LP / E-LAN

APN Radius client

Radius Proxy

Radius Proxy

Operator domain SURFnet 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!

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

W

[email protected] 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/