Comsys confidential and proprietary informationSubject to Mutual Confidentiality Agreement

The four W’s of LTEIMA Dec 2007

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About Comsys

Cellular baseband solutions company Field proven solutionsOver 20 Million handsets using Comsys cellular technologies

Strategic partnerships with leading 1st tier customersThe only company with both 3GSM and WiMAX baseband products90 Employees & growingFocused on technological excellence

Comsys Enabled Devices

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Comsys Solutions

200620042002 20082000

2.5G PHY IPEDGEware™

2G/3G System IPEGGware™

UEware™

4G Silicon/System ComMAX™

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What is LTE? Technical perspective

OFDMAAll IP NW (EPS)

MIMO; MU-MIMO;

www.3gpp.org

Open/Close LoopPrecoding

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What is LTE? Terminology

Air InterfaceLTE – Long Term Evolution (of 3G RAT)Equivalent “LTE” terminology:

3GPP release 8 !!!Super 3G (DoCoMo)

4G (actually 3.9G ☺)

NGMN – Next Generation Mobile NetworkBroadband (loose)

InfrastructureSAE – System Architecture Evolution (All IP cellular NW)EPS – Evolved Packet System (Core NW + RAN)EPC – Evolved Packet CoreE-UTRAN – Evolved Universal Terrestrial Radio Access Network

End PointsUE, eNB, and MME/UPE

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3GPP Releases and Packet NW Evolution

UMTSR99

UMTSR99

GGSNGGSN

SGSNSGSN

RNCRNC

NodeBNodeB

HSDPAR5

HSDPAR5

GGSNGGSN

SGSNSGSN

RNCRNC

NodeBNodeB

HSUPAR6

HSUPAR6

GGSNGGSN

SGSNSGSN

RNCRNC

NodeBNodeB

HSPAR7

HSPAR7

HSPA+R7

HSPA+R7

LTER8

LTER8

User Plane

Control Plane

GGSNGGSN

SGSNSGSN

RNCRNC

NodeBNodeB

EPS-GWEPS-GW

aGW-MME

aGW-MME

eNodeBeNodeB

GGSNGGSN

SGSNSGSN

NodeBNodeB

2000 2002 2005 2007 (Stage 3)

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What is LTE? Technical Objective

LTE Technical Objectives:Downlink Capacity: Instantaneous data rate of 100Mbps in 20Mhz (variable channel bandwidth)Uplink Capacity: Instantaneous data rate of 50Mbps in 20Mhz200 users per TRX at 5Mhz BWLatency: Less than 5ms in ideal conditionsUser throughput: 4-5 times HSDPA, 2-3 times HSUPAMobility:

Optimized for low speed but supporting 120kmh with high performanceMobility support up to 350Kmh

Support QoS

www.3gpp.org/Highlights/LTE/LTE.htm

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Why LTE was invented?

Reducing the NW operators CAPEX and OPEX to enable:Broadband communicationShift from “bit” to “content” pricing modelFlat rate for broadband

NGN/NGMN: Applications and ServicesIP based NW (scalable and robust)IMS - IP Multimedia SubsystemEnd to End quality of service (QoS)

MBMS enhancements

Low Latency

WiMAX & UMB competition

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LTE: Reduced CAPEX and OPEX

Flat NW architecture – less equipment, low latency IP based connectivity – Routers and GatewaysReuse of current cell-sites and antennaIncreased number of users and throughput per TRX

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GSM vs. LTE: Cost comparison

GSM/GPRSGSM/GPRS HSPA HSPA RelRel 66 LTE @ 20MhzLTE @ 20Mhz

Equivalent Equivalent TRXTRX**

111111 1212

RNCRNC

2.5Mbps2.5Mbps

2.5/5=0.52.5/5=0.5

CS & PSCS & PS

11

NW HierarchyNW Hierarchy BSCBSC --

Cell Typical Cell Typical CapacityCapacity**

100Kbps100Kbps 30Mbps30Mbps

Spectral Spectral EfficiencyEfficiency****

100/200=0.5100/200=0.5 30/20=1.530/20=1.5

ModesModes CS & PSCS & PS PS onlyPS only

•* Source: Motorola•**DL only user peak results with different spectral efficiency figures

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Enhanced Multimedia Broadcast Multicast Service (MBMS)

Co

st

Unicast

MBMSDVB-H

Extending Rel. 6 conceptPHY

Dedicated 40ms TTILonger symbols

7.5Khz spacing3 symbols per sub-frameExtended CP

MACSimultaneous MBMSand non-MBMS services

CapacitySingle-Cell Multi-Cell

Dedicated

Mixed

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When Will I be able to use LTE?

Maturity Process Diagram of wireless technology

RequirementsRequirements SpecificationPhases 1,2,3

SpecificationPhases 1,2,3

TestSpec

TestSpec

TestValidation

TestValidation

EngineeringTrials

EngineeringTrials

CommercialTrials

CommercialTrials

NW sideNW side

HandsetHandset

TestEquipment

TestEquipment

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Time line speculations…

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Where is it going to be deployed?

$pectrum:IMT-2000/IMT-AdvanceLower band is a better band

Current vs. new spectrum

Deployment process options:National coverageGradual coverage

Cell sites

Source: O2

Source: Alcatel-Lucent

3G: 1800,1700/2100, 2500/2600 Mhz2G: 850, 900, 1800, 1900 MhzNew: 450, 700 MHz

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Some Comments in General

Long Term Employment (LTE) – Good for EngineersLate Terminals Expected (LTE) – Remember the 5 years …

C3 Industry:CaptiveConsolidatingConservative

GPRS and UMTS lessons should be learned2G (GERAN) and 3G (UMTS/HSPA) will continue to evolve

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Summary

WHATAll IP, OFDMA, MIMO and 3GPP

WHYCost, Communication and Competition

WHEN2010 … 2013

WHEREIMT2000 SpectrumSame cell sitesSAE/EPS NW nodes

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www.comsysmobile.comWiMAX: Ehud.Reshef@Comsysmobile.com

+972 (54) 5677866

LTE: Ophir.Shabtay@Comsysmobile.com+972 (54) 4956214