LTE Mobile Offload - gatesair.com · LTE Mobile Offload. ... Television Transmit Radio Mobile phone...
Transcript of LTE Mobile Offload - gatesair.com · LTE Mobile Offload. ... Television Transmit Radio Mobile phone...
LTE Mobile OffloadSeptember 12, 2015
IBC2015
Copyright © 2015 GatesAir, Inc. All rights reserved.
FeaturingGatesAir’s
Steve RossiterTV Applications Engineer
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Create Transport Transmit Television Transmit Radio
Connecting What’s Next
LTE Mobile OffloadSeptember 12, 2015
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What is LMO?
Technology envisioned / created by the TechnischeUniversitaet Braunschweig. Known to industry as “Tower Overlay”.
GatesAir partnering with TUBS to commercialize. It is realized using High Tower, High Power (HTHP)
transmitters so that… HTHP transmitter coverage “over – lays” the many
cellular towers The basic idea is to offload popular services, especially
live video, from cellular networks
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Mobile phone bandwidth:– Ericsson and Cisco predict exponential growth of bandwidth needed - driven largely by
video consumption
Placing popular content on an HTHP network would reduce LTE network load LMO maximizes the use of existing spectrum and revenue opportunities for both
broadcasters (network operators) and telecom operators
Why is LMO Useful?
Cisco Global Mobile Data
Forecast2014-2019
1 1 EB = 1018 bytes = 1,000,000,000,000,000,000 bytes
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LMO – Hybrid DVB-T2 / LTE-A+ Carrier FEFs enable cooperative spectrum use of terrestrial broadcast and mobile access
networks A variable length and number of both frame types (DVB-T2 und FEF) enable flexible
resource allocation ATSC 3.0 will include an equal concept as well!
DVB-T2Data
DVB-T2Data
DVB-T2Data
LTE-A+ LTE-A+ LTE-A+
Hybrid Modulator
DVB-T2Data
LTE-A+
DVB-T2-Modulator
LTE-A+
Modulatortime
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We demonstrated the joint use of DVB-T2 and LTE-A+ in a single radio channel:
LMO - Having a look at the Spectrum
554 MHz
8 MHz (DVB-T2)
5 MHz (LTE-A+)
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LMO Industry Activities – Paris Field TrialHybrid Modulator No LTE capability required!
No DVB-T2 capability required!
TV Set (off-the-shelf)
Receiver Prototype
VoD…
Lin
ear/
no
n li
nea
r co
nte
nt
LTE
-A+
Mod
ulat
or
LTE-A+
Data
DV
B-T
2M
odul
ator
DVB-T2DataT
V
Tablet
LTE
-A+
Mod
em
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LMO Industry Activities – Paris Field Trial
Parameter DVB-T2LTE-A+
PMCH 1 PMCH 2 PMCH 3 PMCH 4
Carrier Frequency 738.166 MHz (channel 54)
Bandwidth 8 MHz
TX Power only 2.7 kW ERP
MCS 4 7 14 18
Modulation 64 QAM QPSK QPSK 16 QAM 64 QAM
Coderate 0.5 0.28 0.49 0.51 0.43
Carrier Spacing 558 Hz 2.5 kHz; 7.5 kHz; 15 kHz
FFT Size 16k (ext.) 6144, 2048, 1024
TDM Share LTE-A+ 50%, 75%, 100%
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LMO Industry Activities – Paris Field Trial
TDF
Montparnasse
Eiffel Tower
1 km
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LMO Field Trial Results
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LMO Field Trial Results
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LMO Industry Activities – Aosta Valley Field Trial
ERP: ~ 350 W
ERP: ~ 700 W
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Visit us to discuss the technology andfield trial results at theFuture Technologies Zone
LMO @ IBC 2015