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Cognitive Radio - Tekes

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Trial ohjelma<br />

Kognitiivisen radion ja verkon<br />

kokeiluympäristö<br />

Johtoryhmän edustajan<br />

puheenvuoro<br />

Mikko.a.uusitalo@nokia.com<br />

Company Confidential<br />

1<br />

© 2008 Nokia V1-Filename.ppt / YYYY-MM-DD / Initials


Consumer needs are guided by<br />

•New ways to act and behave<br />

•Dew devices<br />

•Availability of bandwidth<br />

Nokia Copyright<br />

2<br />

5 billion people<br />

connected<br />

CR2010/TAV Marraskuu 2010


Traffic Forecast – x100<br />

Global FIXED traffic (ExaByte/month)<br />

100<br />

80<br />

60<br />

40<br />

20<br />

3<br />

Voice<br />

Traffic<br />

© 2010 Nokia<br />

Business<br />

Internet<br />

Residential<br />

Unicast TV<br />

Residential<br />

Internet<br />

0<br />

2007 2008 2009 2010 2011 2012 2013 2014 2015<br />

Fixed broadband traffic<br />

is 40x mobile in 2015<br />

Source: Lauri Oksanen,<br />

Nokia Siemens Networks<br />

Global MOBILE traffic (ExaByte/month)<br />

2.5<br />

2.0<br />

1.5<br />

1.0<br />

0.5<br />

Source: analyst reports and internal research<br />

Voice<br />

Traffic<br />

Handheld<br />

data traffic<br />

Laptop<br />

Data Traffic<br />

0.0<br />

2007 2008 2009 2010 2011 2012 2013 2014 2015<br />

I want only one TV channel - Mine!<br />

Mobile data traffic<br />

grows 300 fold<br />

Price per bit needs to<br />

decrease significantly!


Real data on traffic increase<br />

Source: CEPT PT1<br />

Nokia Copyright<br />

4<br />

CR2010/TAV Marraskuu 2010


Data traffic increases rapidly in Finland<br />

• 1.1M customers with wireless data mid-2010, 21% of population, growth rate 73%<br />

• Average traffic per user 1.9 GB per month 1H/2010<br />

• Increase influenced by amount of consumers and their behavior<br />

Nokia Copyright<br />

5<br />

CR2010/TAV Marraskuu 2010<br />

1.3 GB/sub<br />

/month<br />

1.5 GB/sub<br />

/month<br />

1.84 GB/sub<br />

/month<br />

1.88 GB/sub<br />

/month


Is the Current Spectrum being used Efficiently?<br />

Source: D Cabric, S M Mishra, R W Brodersen, “Implementation Issues in Spectrum Sensing for <strong>Cognitive</strong> <strong>Radio</strong>s”,<br />

Thirty-Eighth Asilomar Conference onSignals, Systems and Computers, 2004.<br />

6 © 2010 Nokia<br />

White spaces in the spectrum<br />

(unused spectrum)<br />

Spectrum Utilization between 0 and 6 GHz


Motivation<br />

• Trend: Increasing growth of mobile traffic<br />

7<br />

• More than 5 billion mobile phone users today…and growing at a startling rate<br />

• “7 trillion wireless devices serving 7 billion people in 2017” – Wireless World<br />

Research Forum<br />

• “Mobile Internet traffic handled by mobile operators will grow from 7 billion<br />

megabytes worldwide [in 2008] into 63 billion megabytes in 2013 (CAGR 54%)”<br />

– Informa<br />

• Trend: Regulators allowing secondary spectrum access<br />

• FCC opened door for TV White Spaces in USA<br />

• CEPT and several administrations are getting active<br />

• Active discussion predicted on regulatory measures in the 2012 World<br />

<strong>Radio</strong>communication Conference (WRC-12)<br />

© 2010 Nokia


Other challenges<br />

• Usability: how to hide increasing complexity?<br />

• Sustainability: how to provide more in a sustainable way?<br />

• Security and trust: with more decentralization and increased dependency on<br />

ICT and wireless?<br />

• New challengers from other industries and from other economies: How to be<br />

the winner in the new ecosystem?<br />

• How to win in new application areas?<br />

8<br />

© 2010 Nokia


Liberating Spectrum to Enable New Opportunities<br />

<strong>Cognitive</strong> <strong>Radio</strong><br />

Empowering a new realm of devices and services<br />

through optimized connectivity. The world is<br />

moving towards a new era where mutuallyconscious<br />

intelligent devices leverage awareness<br />

of environmental circumstances and user needs<br />

to determine how to communicate on the fly via<br />

dynamic spectrum use for improved connectivity<br />

and capacity.<br />

Research is centered in Helsinki, Finland, including<br />

at the Otaniemi lab, and is focused on:<br />

9<br />

• Methods for flexible spectrum use<br />

• Novel ways of sensing the radio environment<br />

and location<br />

• Distributed networks that intelligently cooperate<br />

• Low power flexible implementation of radio<br />

modem<br />

© 2010 Nokia


Consicous and polite radio<br />

Nokia Copyright<br />

10<br />

• Transmits and receives<br />

• Hears and sees<br />

• Knows its status and the environment<br />

• Understands needs via applications<br />

• Discusses with other radios<br />

• Discusses with databases<br />

• Might cause interference<br />

• Prevention of harmful interference<br />

• Expects politeness<br />

• Essential challenges outside traditional radio technology!<br />

CR2010/TAV Marraskuu 2010<br />

Heterogeneous Networks,<br />

<strong>Cognitive</strong> <strong>Radio</strong>s and Coexistence<br />

<strong>Cognitive</strong> Mesh<br />

Network (CMN)<br />

MUEs with<br />

Rules Rules Rules<br />

Regulatory Information System<br />

Composite Wireless Network (CWN)<br />

<strong>Cognitive</strong> Control RAN Type B<br />

Network (CCN) OSM<br />

autonomic operation<br />

Policies Policies<br />

JRRM<br />

P<br />

o<br />

l<br />

i<br />

c<br />

i<br />

e<br />

s<br />

Rules Rules Rules<br />

<strong>Cognitive</strong> NMS (C-NMS)<br />

Multiradio UEs (MUE) with network guided operation<br />

RAN Type A<br />

Legacy UEs


New Spectrum Rules<br />

• US TV White Spaces bring primary/secondary sharing between TV broadcasters<br />

and mobile wireless services<br />

• Possible new ways compared to spectrum use today:<br />

11 © 2010 Nokia<br />

Vertical Sharing Horizontal Sharing<br />

Commons approach •Protected primary with<br />

unique access rights<br />

•Secondary use of unused<br />

resources<br />

•Opportunistic use between<br />

secondary users<br />

Transferable spectrum<br />

usage rights<br />

•Protected owner of<br />

resources that may<br />

exchange them<br />

•Negotiations between<br />

market parties<br />

•Pool of equal resources<br />

•Policies for sharing<br />

between equals<br />

•Optional: No interference<br />

between existing users<br />

•Optional: Negotiations<br />

•Pool of equal resources<br />

•Negotiation between<br />

market parties<br />

•Use of spectrum resources<br />

protected in some sense<br />

•Fairness metric


Nokia Copyright<br />

12<br />

Roadmap with spectrum<br />

Licensed<br />

Slow process<br />

High investments in<br />

beginning<br />

Effective<br />

QoS<br />

Enduring business<br />

model<br />

Global<br />

CR2010/TAV Marraskuu 2010<br />

Authorized use<br />

Flexible process<br />

Initial investment according<br />

to market price<br />

Effectiveness and QoS<br />

reachable<br />

New business models<br />

Global contract and local<br />

flexibility<br />

Unlicensed<br />

No process<br />

Low threshold in<br />

beginning<br />

Tragedy of<br />

commons<br />

No guarantee on<br />

QoS<br />

Enduring business<br />

model<br />

Mainly local


Coexistence - Levels of Collaboration<br />

• Wild West: Decision-makers<br />

optimize their own situation, not<br />

taking into account any interests of<br />

others<br />

• Cooperation: Decision-makers<br />

optimize their own situation, while<br />

taking into account the interests of<br />

others<br />

• Collaboration: Interacting decision<br />

makers to optimize their<br />

performance, this is based on<br />

active/explicit communication<br />

between the decision-makers<br />

• Standardization ongoing in IEEE<br />

802.19 and in ETSI RRS<br />

Company Confidential<br />

13 © 2010 Nokia CR Systems.ppt / 2010-05-06 / CW


From wide area to local optimization<br />

1G: Analogue cellular systems (AMPS, NMT, etc.)<br />

2G: Transition to digital (GSM, TDMA, CDMA)<br />

3G: Fusion of voice and data (WCDMA, CDMA2000)<br />

4G: Performance extremes in wide area, more flexible<br />

bandwidth and spectrum deployments, flat network<br />

architecture (3GPP LTE)<br />

Future trend: <strong>Cognitive</strong> <strong>Radio</strong><br />

• The research frontier in wireless<br />

• Changing the rules on how spectrum is being used<br />

Initial steps with this technology are about to be<br />

taken on the U.S. TV White Space frequencies<br />

that recently were made available by the FCC<br />

14<br />

© 2010 Nokia<br />

Wide Area<br />

Access<br />

Local Area<br />

Access


Key Technologies for Future Wireless<br />

15<br />

Heterogeneous Networks,<br />

<strong>Cognitive</strong> <strong>Radio</strong>s and Coexistence<br />

<strong>Cognitive</strong> Mesh<br />

Network (CMN)<br />

MUEs with<br />

© 2010 Nokia<br />

Rules Rules Rules<br />

Regulatory Information System<br />

Composite Wireless Network (CWN)<br />

<strong>Cognitive</strong> Control RAN Type B<br />

Network (CCN) OSM<br />

autonomic operation<br />

Policies Policies<br />

JRRM<br />

P<br />

o<br />

l<br />

i<br />

c<br />

i<br />

e<br />

s<br />

Rules Rules Rules<br />

<strong>Cognitive</strong> NMS (C-NMS)<br />

Multiradio UEs (MUE) with network guided operation<br />

RAN Type A<br />

Legacy UEs<br />

Technologies to minimize<br />

power consumption<br />

Flexible, frequency agile platforms<br />

Grand challenge<br />

WLAN<br />

TCP/IP<br />

A<br />

D<br />

Generic Multiradio RF<br />

D<br />

A<br />

A<br />

D<br />

D<br />

A<br />

D<br />

A<br />

PLL PLL<br />

PLL<br />

Application 1 Application 2 Application 3 Application 4<br />

A<br />

D<br />

MTP<br />

Vector<br />

processor<br />

Vector<br />

processor Vector<br />

processor<br />

CPU<br />

CPU<br />

CPUCPU<br />

Generic Multiradio BB<br />

RAM ROM<br />

SW mechanisms to efficiently utilize<br />

heterogeneous network access<br />

BT<br />

3G/LTE HDMI BT USB


Regulation creates an attracting<br />

environment in Finland<br />

16<br />

© 2010 Nokia<br />

180MHz<br />

New!<br />

80MHz 350MHz<br />

http://www.showmywhitespace.com/<br />

Tests going on already!


Status today<br />

Nokia Copyright<br />

17<br />

?<br />

CR2010/TAV Marraskuu 2010<br />

• Regulation<br />

• USA: TV White Space is minimum solution, enables<br />

quick start<br />

• EU/RSPG, CEPT, ITU<br />

• National questions, Finland active<br />

• Technology<br />

• Research: EU, Companies, TEKES, …<br />

• Standards: IEEE 802, WIFI Alliance, ETSI, CCSA, 3GPP<br />

• Testbeds: small starts here and there<br />

• Customers<br />

• Nothing commercial yet<br />

• Commercial terms unclear


Status tomorrow<br />

• Finland is known about wireless solutions that are intuitively easy to use –<br />

things just happen<br />

• Finland has attracted even more world top level wireless research &<br />

development & business activities<br />

• Finland has applied our wireless talent successfully to new business sectors<br />

• Despite the growing role of wireless, energy consumptions is sustainable<br />

Nokia Copyright<br />

18<br />

CR2010/TAV Marraskuu 2010

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