Download - Day 2-t9-1430 alan-carlton-20120524
© 2012 InterDigital, Inc. All rights reserved.
May 24, 2012
Future Wireless Broadband Access
Thinking Beyond LTE
Alan Carlton
Senior Director, Corporate Planning
2 © 2012 InterDigital, Inc. All rights reserved.
Wireless Broadband: Where we stand today
Cisco projects an 18-fold increase in mobile data traffic over the next five years.
Video will be by far (70.5%) the dominant traffic profile driving this demand explosion
Wireless Service Providers are moving to tiered service levels & traffic shaping to
manage spectrum resources in response to this growing demand for data connectivity
Urbanization, shift of traffic indoors & need for better use of spectrum is driving small
cell technology, a network-of-networks & a blurring of the once cellular-WiFi divide
Digital immigrants are giving way to the digital natives who are reinventing the media
experience that will challenge even the most aggressive infrastructure investment
Today’s wireless technology & spectrum roadmaps will struggle to keep ahead of
demands & shifting user behavior. New thinking on spectrum & architectures required
3 © 2012 InterDigital, Inc. All rights reserved.
The Bandwidth Crunch Challenge More spectrum debate continues but we believe it will only be part of the solution
More spectrum and new thinking is required to meet this challenge
Average
Speeds*
Population
Density
Devices/
Person
Busy
Hour
Required Area
Capacity**
2012 0.3Mbps x 4984/km2 x 1.20 x 15% 0.26Gbp/s/km2
2016 2.9Mbps x 5191/km2 x 1.40 x 20% 4.2Gbp/s/km2
2020 30Mbps x 5477/km2 x 1.70 x 25% 69.8Gbp/s/km2
Assuming state of the art LTE-A** today
In 2016 we may need 317MHz of spectrum
In 2020 we may need more than 5GHz!
* Cisco Visual Networking Index 2012 **Assumes 2.6b/s/Hz/cell with 500m ISD
London
4 © 2012 InterDigital, Inc. All rights reserved.
InterDigital Communications Research: What We Do
InterDigital has been tackling the bandwidth crunch for generations
InterDigital develops fundamental
wireless technologies that are at
the heart of mobile devices,
networks, & services worldwide. Vision
As a long time contributor to the
wireless industry, we have solved
many of the most critical mobile
challenges for 30+ years
Our technology is used in all 2G,
3G, LTE devices providing support
for new mobile broadband &
richer multimedia experience
We offer our technologies to the
market in IP blocks and full
product solutions and have been
key in high profile OEM offerings
Technology
Standards
Solutions
5 © 2012 InterDigital, Inc. All rights reserved.
Today’s Challenge is More Complex than Ever
Service Provider Options Today:
Ration resource usage
Invest in new capacity
New revenue innovation
spiraling
capex/opex
6 © 2012 InterDigital, Inc. All rights reserved.
And Tomorrow (2020)
Two tech trends will perhaps shape future more than any
7 © 2012 InterDigital, Inc. All rights reserved.
The Remarkable Shrinking Cell
Main driver of capacity
growth last 50 years1
Microcell
Femto Cellular Broadcast
Picocell WiFi
Nano Ultra-
dense
THz
Cells
Device2
Device
It has always been about making the network more efficient and smarter
All driving us to a world of ubiquitous connectivity asset availability
This is unlikely to change anytime soon
Next step: cooperative ultra-dense cell technology
that opportunistically leverages licensed/unlicensed
Cellular controlled Device2Device communications:
Our research shows time is right for this technology
And beyond: Falling device cost & wealth of spectrum
will drive THz move for “indoor & around” applications
1 Source: Agilent, 2008 (Coopers Law)
2000x Number of cells
25x More Spectrum
20x Radio Design
8 © 2012 InterDigital, Inc. All rights reserved.
And Convergence of Computing/IT & Telecom Tech
Network virtualization enables sharing & efficient leveraging of assets
The cloud is about reducing OPEX/CAPEX, resource sharing flexibility
This HAS happened
IT resource virtualization
Infrastructure sharing
Policy driven architecture
Outsource of operations
NaaS, IaaS, PaaS
This is happening NOW
All IP network to share BW
Silos converged network
DPI & Open API initiatives
Network sharing/outsourcing
Spectrum sharing/pooling
Network
Virtualization
Cloud
Computing
9 © 2012 InterDigital, Inc. All rights reserved.
Evolving Norms in Definition of Connectivity Assets
* 200%-300% improvements observed at cell edge
Sharing, flexibility, aggregation is the new normal
The next step up is dynamic, policy driven, real-time
White space is the incubation ground for this emerging tech.
Our research here suggests ~100% gains in key QoE metrics
Intelligent, self organizing, offload is the new normal
The next step up is to push virtualization down to client
Flow segmentation & IP flow mobility key steps on this path
Linear QoE potential but more e2e traffic shaping & control
High powered, multi-core, multi-purpose is new normal
The next step up is to unleash the power in the “crowd”
Bring resources into a controlled virtual access infrastructure
Gains in excess of 50% observed* with little negative impact
The Spectrum
Resource
The Access
Resource
The Device
Resource
10 © 2012 InterDigital, Inc. All rights reserved.
And Thinking Beyond 4G: Our Vision 2020(+)
Future direction indicators:
Emergence of a world of ubiquitous
access resource availability
The rise of the cloud and network
sharing/virtualization paradigms
Broad new innovative thinking in
spectrum usage & application
Ever more powerful, multifunctional,
multi-resource user devices
Any Access
Resource
Any Spectrum
Resource
Any Device
Resource
is made your resource Opportunistically
Virtual access fabric
Network Policy Driven
2G Narrowband era
3G Broadband era for few
4G And for the masses
Beyond 4G Personal Ultra Broadband Era
11 © 2012 InterDigital, Inc. All rights reserved.
Glimpse of Future in Today’s Emerging Technologies
Any Spectrum
Resource
Any Access
Resource
Any Device
Resource
Spectrum sharing, multi-RAT aggregation, White Fi
Multi-Operator spectrum sharing becoming commonplace
R12 proposal to allow aggregation across LTE, HSPA, WiFi
IEEE 802.11af: Enable WiFi use within unused TV spectrum
L23 Virtualization, RAN sharing, Hotspot 2.0
Transport assets virtualization for OPEX benefits underway
R12 proposal on dynamic RAN sharing across operators
Carrier grade WiFi developments blurring traditional divides
Media Mobility, WiFi direct, Proximity services
P2P media sharing emerging as common device feature
WiFi direct feature allows gadgets to connect easily P2P
R12 proposal for cellular-controlled D2D communications
12 © 2012 InterDigital, Inc. All rights reserved.
And Thinking Beyond 4G: A New Air Interface!? As before it will be complex question of timing, drivers and enablers
19821
2014? 2G 3G 4G Beyond 4G Mostly about Spectral Efficiency Increasingly about General Data support & Spectrum Flexibility
19951 20041
Emergence of digital tech.
Affordable DSP technology
Forward error connection
Feasibility of CDMA (Reuse=1)
Invention of Turbo codes
Advanced receivers
Process node evolution
Invention of MIMO
Natural fit with OFDM
Maturity of SDR Technology
Wideband Digital Transceivers
Spectrum sensing advances
Can we build a B4G business case based on improvements here?
Energy Efficiency
Specialized Data
Spectrum Agility
Likely air interface drivers beyond 4G:
Video is set to be the dominant traffic profile:
Makes sense to optimize protocol design to
most efficiently handle this new requirement?
Energy crunch is just flip side of BW crunch:
Makes sense to improve MAC/PHY/RF design
to minimizes OPEX & build a greener world?
Small cells & sharing driving biggest gains:
Makes sense to discuss new MAC/PHY/RF
tech. to enable dynamic spectrum sharing
* In 1982 CEPT forms GSM, In 1995 UMTS task force kicks off 3G, in 2004 first LTE RAN workshop
13 © 2012 InterDigital, Inc. All rights reserved.
We Are Asking These Questions & Building this Future Today Some of our research & development activities (available today):
Technology solutions for the bandwidth crunch today & tomorrow
A first step in pushing
virtualization down to
the client. Smart e2e
traffic shaping &
control over cellular &
WiFi technologies
Bandwidth
Management
Dynamic Spectrum
Management Video over Wireless
Device-to-Device
Communications
Policy driven spectrum
mgmt. Demonstrating
capacity enhancement
benefits of operating
WiFi & LTE in white
space/UL bands
Proving that the crowd
resource can be
leveraged into a virtual
resource fabric for
performance & social
networking benefits
Demonstrating
wireless aware video
processing & video
aware wireless design
yields significant all
round QoE gains
14 © 2012 InterDigital, Inc. All rights reserved.
Thank You!
Alan Carlton Senior Director, Corporate Planning InterDigital Communications, LLC Melville, NY 11747-4508 +1 631.622.4338 [email protected] 24
MAY