MWC 2013
5G Air Interface
Advanced Waveforms and RF
Device to Device
Millimeter Wave Hotspots
© 2013 InterDigital, Inc. All rights reserved.
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Advanced Waveforms and RF
Spectral agility
Improving spectrum utilization of baseband waveforms (e.g. OFDM in 3GPP and WiFi standards) when the available channels are non-contiguous and shared with multiple systems
Energy efficiency
Raising efficiency of Multi-channel transmissions with joint RF-Baseband techniques
Key Advantages
Addressing the limitations of current Physical Layer techniques when used in emerging architectures
InterDigital Waveform Evaluation Platform
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© 2013 InterDigital, Inc. All rights reserved.
Spectral Agility means we can provide dynamic channel access in a manner to support non-contiguous and flexible bandwidth channel access
Source of figures: DoComo, 3GPP R12 Workshop, Warsaw, June 2012
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Waveform Evaluation Platform
Crest Factor Reduction
Digital Predistortion
Envelope Tracking
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© 2013 InterDigital, Inc. All rights reserved.
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Device to Device (D2D)
Commercial Data Service Operators
Device Discovery enables new applications
Capacity and Coverage enhancements through “virtual network” built on Helper UEs
Offloads local traffic from the base stations
Public Safety Communications
Establish LTE-based public safety broadband network
Benefits from the scale of the 3GPP market for PS terminals
InterDigital provides architecture, design and simulation testbeds
Device Discovery
Capacity Enhancement
Coverage Enhancement
Local Traffic Offload
Shadowing
Direct Link
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© 2013 InterDigital, Inc. All rights reserved.
Cellular controlled D2D is motivated by cost of deploying more and more cell sites
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Higher frequency backhaul and access solutions to solve the future wireless capacity problem
500X capacity growth by 2020!
Extend mmW MAC/PHY and add directional mesh networking to provide high capacity, low cost backhaul solution
Enable wireless backhaul
Full mmH
Architecture
Leverage mmW radios which are becoming commercially available
Small Cells meet High Frequency Spectrum
mmWave Hotspots (mmH)
Extend support to Access links and integrate with 3GPP
Adapt 3GPP RAN Architecture to support multi-RAT mmW
Next G
eNB
mmW
backhaul
mmW
access
Traditional
Cellular
Link
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© 2013 InterDigital, Inc. All rights reserved.
Figure Source: http://www.ltcc.de/en/rd_san.php
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Millimeter Wave Hotspots (mmH)
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© 2013 InterDigital, Inc. All rights reserved.
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© 2013 InterDigital, Inc. All rights reserved.
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