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Golnaz Farhadi

Cloud-Based Solutions Innovation Group

Fujitsu Laboratories of America, Inc.

January 2014

Next Generation Wireless Networks

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Source: Ericsson (Nov. 2013) 9.2 Billion

Mobile subscriptions by 2019

4X

Growth in mobile broadband

subscriptions between 2013-2019

Wireless Networked Society

The world is becoming increasingly mobile… (wireless connectivity anywhere, anytime, anything)

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Source: Ericsson (Nov. 2013)

… and mobile data traffic growth

Mobile Data Traffic

increasing exponentially

Source: Ericsson (Nov. 2013)

Source: Ericsson (Nov. 2013)

Tra

ffic

fro

m c

onnecte

d t

hin

gs

Source:

http://shahneil.com/wp-content/uploads/2010/07/M2M-Applications.png

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How to meet the demand?

Small cell deployment

Offload over WiFi networks

Continued link enhancements

Offload traffic: 46%

Cellular traffic:

54%

Source: Fujitsu

Source: Fujitsu

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More spectrum!!

Much of spectrum is allocated

But underutilized!

• Spectrum refarming is costly

Spectrum sharing paradigm

Spectrum scarcity is an artifact of

fixed spectrum assignment policy

Location

List of channels

TVWS database

No interference with incumbents, via

Channel query from a certified database

Technology innovations are

necessary but not sufficient

Unused spectra (white spaces) in the TV band

(TVWS)

Secondary

(unlicensed access)

Incumbents

(Primary) Sharing

model in

TVWS

Source: http://www.ntia.doc.gov/files/ntia/publications/2003-allochrt.pdf

More spectrum is vital for

growing broadband demand

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… is it the whole solution?

Dense small cells/WiFi deployment Heterogeneous coexistence in

shared spectra

Database as the coexistence management (CxM) service provider

Increases spectrum utilization

Improves user experience

LTE

WiFi

CxM Agent

Data

Fujitsu CxM Controller

(in the database)

Collect Information from all networks

Detremine network parameters

(bandwidth, spectrum , …)

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2

3

4

5

6

CxM Agent

Data

CxM Agent

Data

CxM Agent

Data

CxM Agent

Data CxM Agent

Data 6

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Next Generation Wireless Access

Source: Qualcomm

Hierarchal and

heterogeneous

(3G/4G/5G+WiFi)

Support wide

range of

frequencies

Software-defined

Wireless

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