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ContentsAbout UsiCell BackgroundiCell IntroductioniCell Case Study

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Comba officially founded1997- Listed on the HKSE board (2342.HK)20032004- Europe office opened in Sweden2006CALA office opened in Brazil- Launched worlds 1st 3G MCPA for AWS band2008- Approved Supplier status in Vodafone 2010Launch of Small Cell SolutionsRevenues grew 17% to $667m+ in FY 2010Recognized No.1 TMA vendor by ABI Research

32012Released LTE Small Cell SolutionDeploys first High Speed Railway Solutions2014No1 shipment of LTE Small Cells in ChinaSmall Cell deployed in Romania & PakistanSupplies solutions for World Cup Brazil and Sochi Winter Games

Development History320 Provinces Commercial Usage80% Provinces Application 24+ Months Failure-free OperationNo1 shipment Small Cell in China200K+ Small Cells, 37 Gateways shipmentPakistan: Small Cell & Gateway deploymentRomania: iCell System deployment

Small Cell(iCell) Application Commercial ApplicationTrial

PakistanChinaRomania

Interoperability with Mainstream EPC & UE

Interoperability with 2G/3G networkInteroperability with Multiple Backhaul

Interoperability with Synchronization SystemCSFB4G2G/3G

Interoperability 5ContentsAbout UsiCell BackgroundiCell IntroductioniCell Case Study

6

Challenges and SolutionsOperationImprove user experience Increase data rate Increase spectrum efficiencyEspecially indoor usersEnd to end monitoring and management

User DemandsRolloutUbiquitous CoverageHigh Speed AccessEasy Site AcquisitionFast RolloutHigh Speed& Ubiquitous accessCost effectivein-building solutionHigh efficient management system

Target: Small to Medium Scenarios

Small Cell Going from home to enterprise or public spaces. A new approach for small to medium situations, where no cost-effective solution previously existed.

Floor Space of Commercial Building in USm2m2m2Cost-effective Small to Medium in-building solutionContentsAbout UsiCell BackgroundiCell IntroductioniCell Case Study

9PON/PTN/ Ethernet

Campus, Commercial Buildings

Office, Business Hall

OSS

Firewall

NMS

EPCGateway

IP

10(Optional)NMSEnd to end management

GatewaySecurity GW: Simplify NetworkSignalling GW: Resource SavingIP-Based Backhaul(PON/PTN/TV Cable/Satellite )iCell Solution Overview

iCellE-iCellSouthbound interface: TR069, Web Service, and SNMPNorthbound interface: CORBA and Webservice10

E2E Management

High Speed Access

Access Speed

CoverageUbiquitous Coverage$/m2Network UtilizationCoverage ExtensionFlexible BackhaulPTNADSLEthernetPON

Fast Rollout

E-iCell for Medium Scenario

Ethernet Cable, POE

E-iCell Architecture

E-iCelliCellCPFiberDPDPDPCat5e(POE)

DP(Distributed Part)Mini RRH integrated with dual polarized antenna for MIMO2T2RActive device: RF power software controllable, POE Multi mode selectable, TDD-LTE/FDD-LTEMulti band selectableCP(Convergence Part)Port extender: extend 8 PortsSoftware defined switch, converge, compressPSE integratedDaisy chain supportedApplicationCat5E roll out, easy site acquisitionHigh flexibility for small to medium scenariosiCellFull function unit of eNB, Baseband + RF + Antenna Supports 96 active users and 288 connection users

Passive DAS

MIMOMIMO

Low Output Power, Multiple Active Nodes, Reducing II (Inter-modulation Interference)Single high power PAWith passive antenna High II/interferenceMultiple low power active radio heads Low II/interferenceVS

Passive SystemActive System

No need to design/deploy 2 paths for balanced output in passive DAS for MIMO high data accessPower of each node can be regenerated which brings evenly distributed signal

RSRPSingle Cable, Full Speed MIMOE-iCell: Ubiquitous coverage with high PerformanceIT Network-like DeploymentLink BudgetPower DistributionPassive Device Connection

Connection Auto Detect POE, Plug and PlaySoftware Controlled RF TX Power

TX Power_DP1OK13 dBmOK

P=13dBmP1=A-B-??? P2=A--???P1P2

VS

E-iCellTraditional DASE-iCell: Fast Rollout

NMS

IP BackhaulFull monitoring and Control:

Building #1

IP Backhaul Ant/DP Single entity management: iCell acts as a management proxy for multiple nodesDP_14F West WingDP_21F Main EntranceDP_33FDP_42F East WingiCell4F East WingRadiohead/Antenna LevelRAN end to end management:CableBackhauleNB 1

E-iCell: E2E Management

Gateway O&MSecurityAAA O&MNMSGatewayE-iCell

iCell O&MKPI ReportFailure DetectProduct Overview

LTE iCellOperating Frequency2300MHz-2370MHz(TDD)(Frequency/FDD mode can be customized) LTE Output Power2 x 125mW MIMOSupported Users96 active users and 288 RRC usersExtension Port4 x 1Gbps RJ45 Port to DP1 x SFP Port to CPMobilityHandover & reselection with Macro Cell and other Small CellsSynchronization1588v2GPS/A-GPSInterception synchronization(Radio listen/ Sniffer)Product Introduction-iCell

Ethernet (IP Backhaul) Local ManagementSFP (IP Backhaul)Ethernet Extension Port to DP x 4SFP Extension Port to CP

Ethernet Port to Extension Small Cell or CPReserved Port for CADP(Distributed Part)Operating Frequency(Frequency & Mode can be customized)2300 MHz~2370MHz(TDD)LTE Bandwidth5/10/15/20MHzLTE Output Power2 x125mW MIMO 2 x 2Interface2 x 1Gbps RJ45 PortPOE power supplyProduct Overview-DP

CP (Convergence Part)SFP Port 1Optical portTo Source Donor1SFP Port 2Optical portTo Source Donor2(CA or cell splitting)SFP Port 3Optical portTo Relay CP, Support up to 4 CP Daisy ChainSFP4Reserved PortLMT portLocal management portExtension PortsETH1~ETH8 8 x1 Gbps RJ45 Port To DP

Product Overview-CP

Local ManagementSFP Port to Source Donor Ethernet Extension Ports x 8 To CPSFP Port to Relay CPSFP Port to Signal Donor2, for CA or Cell Splitting Reserved

E-iCell for CoverageExtend CoverageCP1DP x 8DP x 8DP x 8DP x 8CP2CP3CP4

Extend More Up to 32 DP

Backhaul To ECP/GW

FiberCat5e(POE)

20

CP1

DP x 8

DP x 8

DP x 8DP x 8CP2CP3CP4

Cell SplittingCell1Cell22121121

E-iCell for Capacity21ContentsAbout UsiCell BackgroundiCell IntroductioniCell Case Study

22iCell Application Scenarios23

Library

Shopping MallHotelSuper MarketDepartment

23Site Info: Shopping Hall & OfficeCoverage : 2300 , 90 users( average)Features: Multiple wall and barriers insidesIntensive building surroundingHigh speed for 4G Smart Phone demo MIMO DAS is hard to deploy1 * iCell + 3* DP ; PoE + Wi-Fi footprint=Easy Rollout PTN Backhaul

Ceiling MountCeiling MountWall MountWall MountApplication ScenarioSolutionCase Study 1: Office Ubiquitous Coverage & High Speed Access

24RangePDF%[-140,-110]0.00%[-110,-100]0.00%[-100,-90]9.14%[-90,-80]22.59%[-80,-70]32.82%[-70,-60]25.00%[-60,-40]10.46%RSRP coverage

Speed test TEST RSRPTDD-LTEFTP UL (Mbps)FTP DL (Mbps)P1-658.5093.39P2-874.256.5P3-737.5681.3

Interoperability with Macro cellAttempted timeSuccessful rateLatency20100.00%0.047Attempted timeSuccessful rate Successful rate 20100%100.00%CSFBCell reselection with macro cell Cell handover with macro4G->2G2G->4GCall established latency(s) Return to 4G latency(s)Call Established latency(s) Return to 4G latency(s)16.51.17.11.126.417.20.936.70.97.11.646.31.27.31.256.81.37.21.5Requirement10s-10s-

Continue(Case 1)

Site Info: CampusCoverage : 6 floors, 1300/floor Features: Wi-Fi interference Multiple dormsHigh capacity requirement6 floors with denseusers

Cat5eBackhaulGPON

Front haulRolloutCeiling & POE

6 * iCell + 24* DP Cell Spilling in each FloorDesign Throughput = 100 * 6 =600 MbpsSupport Active User = 96 * 6 = 576

Solution

Case Study 2: Campus High Capacity RequirementApplication ScenarioGreat performance: Single Ethernet cable for LTE 2x2 MIMO Ubiquitous coverage and high speed access, greatly improve capacity and user experienceCell reselection/handover, CSFB works well

Ubiquitous indoor coverage with high speed

3F2FContinue(Case 2)

Application Scenario

1 iCell + 2CP + 10 DPGPON backhaul Cat5E, Wall/Ceiling mount, PoE power supply

3F

2F4F

1CPDP

1DPCP1F

Gateway Deployed connecting between GPON to EPC1588V2 Synchronization

Smart footprint DPPoE Connection OnlyCP1 deployed in 1FCP2 deployed in 3F(weak current well)Solution

Case Study 3: GovernmentOffice Site Acquisition Site Info: Government BuildingCoverage : 4 Floors * 700 @ 100 usersFeatures: IBS construction is not allowedMultiple wall and barriersPoor 4G signal cause of wall barriersWeekend deploy only

iCell

1F

3FDistance to DPRSRPRSRQSINRRSSIFTP DL (Mbps)Near-67.9-9.931.7-38.095.08Middle-85.8-9.927.9-55.793.75Far-93.0-9.923.5-62.885.25Distance to DPRSRPRSRQSINRRSSIFTP UL (Mbps)Near-72.9-6.034.4-46.87.9Middle-88.4-6.025.4-62.07.8Far-96.3-6.115.2-70.07.7LTERSRP and Throughput

Continue(Case 3)Easy landlord negotiation: Wi-Fi footprint devices (DP)Fast deployment: IT-like equipment (CP)Quick Roll out: Cat5E and fiber deployFinished all the deployment within 2 days (Weekend ) with full MIMO LTE indoor coverage 29

Savings Summary

Passive components is 70-75% less

2000M Cat5e Vs. 4200M RF Cable+ 70 Splitters + 55 Antenna + 65 Coupler

Labor is 70-85% less IT Vs. RFCat5E Vs. Coax

Project arrangement and design are 25-30% lessWi-Fi footprint Vs. Radio equipDifference in site surveys, site acquisition, landlord negotiation, rollout time

OPEX SavingsSmaller space Energy savingRemote control & monitor GUI & Web based maintenanceEnd to end managementTHANKS!

Appendix-Gateway Introduction(Security Gateway)-Routing-transfer-Network aggregation-IP Sec IKEv2 -Mutual authentication (bidirectional authentication)-Efficient Packet Filtering-Integrity protectionand ciphering-Network Attack Detection and Defense

PTN

Cable TV

Satellite

EPCAggregation[Suggestion] Security Gateway is suggested to deploy in the consideration of different network aggregation

GPON32Efficient Network Convergence: Up to 256 S1 links can be combined as 1 Resource saving: MME Signaling and Data compressedSystem Efficiency*: Without Convergence vs. With ConvergenceEfficiency in each layerWithoutWithImprovementTransport layer10010.5589.45%IP layer (IPSec)1001090%Application layer(S1 signaling)10010.4489.56%EPC S1-Flex connections1001090%*Assumptions : MME Pool with 6 MME inside; Each cell serves 32 users at the same time1 S1 link Appendix-Gateway Introduction(Signaling Gateway)[Suggestion] Signaling Gateway is suggested to deploy when iCell volume is more than 300

256 S1 links33