HUAWEI TECHNOLOGIES CO., LTD.

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Green Power For Green Mobile

Content Huawei Green Power Technology Case Study Roadmap

HISILICON SEMICONDUCTORHUAWEI TECHNOLOGIES CO., LTD. Page 3Page 3Page 3

Green BTS, Make It Possible To Use Green Energy

1600W950W

710W

07 industry 07 Huawei 08 Huawei

40 %56 %

Typical power consumption of S4/4/4

570W

64 %

10 Huawei

DBS3900

-40oC~+55oC IP65

Lower power consumption Better environment compatibility High integration

Smaller power consumption make it possible to use renewable power widely in wireless site

Active cooling is unnecessary Natural cooling can be used

SingleRAN: 2G, 3G, LTE 2U height for BBU Smaller equipment room

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Huawei Green Power Solution For Different Scenario Solar-D.G. hybrid

power solutionSolar-wind hybrid

power solutionSolar power solution Solar-Wind-D.G. hybrid

power solution

Application scenario：• Diet BTS, Site load =130 W• Sun availability hours >

4Hours/Day ROI = 1.61 Years Reference: Vodacom SA

Application scenario：• DBS3900, S4/2/2, Site

load=520W• Sun availability hours>

4Hours/Day• Annul Avg. wind speed > 4 m/s ROI < 2.5 Years Reference: CMCC

Application scenario：• BTS3012 S2/4/4 (GSM 900),

S4/4/4 (GSM 1800), site load <

1.15KW• Sun availability hours >

4Hours/Day ROI < 2.69 Years Reference: Vodacom SA

Application scenario：• BTS 3012, site load=1.65KW• Sun availability hours/day >

5.6Hours/Day• Annul Avg. wind speed > 6.7 m/s ROI < 3Years Reference: Safricom Kenya

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Carrier-class Controller, Higher Reliability

High Reliability And Easy Management

Lightning proofHot plug Remote upgrade Smooth expansion Fault Tolerance

Off

ON ON ON

ON ON ON

For expansion

ON

ON ON ON

ON ON ON

For change

ON

Reverse cabling

Alarm but no damage

Software upgrade

V1.0

V2.0

Capacity expansion

Solution optimization

Class C lightning proof

Every single module anti-lightning

Whole controller anti-lightning

SSU

SSU

WSU

Battery group Solar Controller

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Proposed Anti-theft Solution For Green Site

Antenna

BTS3900E

WiFi

Pole

Power

Foot platformFoundation

Lightning rod

Solution 1: All-in-one pole for Greenfield

Solution 2: Soldering Solution 3: High Support Structures

BTS3900E

Dry Contact cable

Solution 4: Dry contact alarm

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Site Monitor Improving Management Efficiency

Central NMS Server

IP/E1/GPRS/SMS

Remote Web Browser

Site levelOptional USB Camera

Central level

Power system

SMS

All-in-One Monitor and control

battery Environment detect Cooling equipment Power supply

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Forecast energy generation

Forecast load consumption

Adjust energy generation

Adjust load consumption

BTS power control

1. Weather forecast2. Weather certain factor3. Meteorology record4. PV panel number5. Battery capacity and status 6. ……

1. BTS configuration 2. BTS TX power level3. BTS power consumption4. Traffic record5. DTX6. ……

Forecast generation of solar power. Balance energy consumption and energy generation Reduce the probability of low-voltage shutdown Controlled by the operator on well balanced the shutdown BTS / service quality (including coverage and service

time)

AFTERSUN : Well Balanced The CAPEX And Service Quality

Content Huawei Green Power Technology Case Study Roadmap

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GSMA Mobile Award—Huawei & GP

'Green Mobile Award' at the GSMA Mobile Awards 2009 One solar site of "Building a Greener Mobile Network“ project'Grameenphone is very committed towards the 'Green' revolution in everything it has been doing over the last

few years. This award is only indicative of the role that a mobile company can play in the development of low carbon economies, industries and lifestyles.' —— from Mr. Frode Stoldal, CTO, GP

Will be a Win-Win success for our cooperation in green mobile service!

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Smallest Green Sites Deployed In SA Vodacom Site : Brooklands / BTS 3900E O2

Power consumption: 200W (250 W measured) Backup time: 6*24Hours; Batteries Recharging time:15 days Battery capacity: 800AH in 2 Batteries Bank; PV panels: 12PCS*165W system set-up : 30.03.2009

Site : Rooywal / BTS 3900E O2 Power consumption: 147W (130 W measured) Backup time: 3*24Hours; Batteries Recharging time:10 days Battery capacity: 400AH in one Batteries Bank; PV panels: 8PCS*165W system set-up Date : 18.05.2009

Site : Maruhla Estate BTS3012 S2/4/4 (GSM 900), S4/4/4 (GSM 1800) Power consumption: 2 KW (measured 1,15 KW) Batteries backup time: ~14Hours; Battery capacity: 980AH PV panels: 20 PCS*165W Diesel Generator: 12,5 KVA, 1000 L Tank Cooling: Free Cooling Box system set-up Date : 27.06.2009

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Continued Optimization For CMCC Green Site

Item Before upgrade After upgrade

BST Type GSM DBS3900

TRX Configuration S4/2/2

Site Load 600W 520W

PV Panel 22PCS 12PCSSolar Controller On/Off MPPT

Wind Controller Wall-mounted Embedded, made by Huawei

Controller logic On/OFf Hybrid intelligent control

Monitoring None HPMU

MPPT Controller: increase efficiency 14.7%, reduce PV panel 3PCS Optimize wind energy utilization: from 30% to 46.85%, reduce PV panel 2PCS Optimize system design tool: reduce PV panel 1PCS Actual site load: from 600W to 520W, reduce PV panel 4PCS

Total PV panel reduced: 10PCS

Solar controller

Wind controller

All in one controller

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Green Innovation Cooperation With VDF

Green Mobile Site with VDF Turkey Green Site at the MWC 2010

Content Huawei Green Power Technology Case Study Roadmap

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Green Power Roadmap

OSS

•All-in-one controller •MPPT solar controller•Monitor integrated with M2000

•After Sun•Solar battery, cycle life 3000@30%DOD

• Intelligent network management

•Advanced Solar battery, 4000@30%DOD with half weight and dimensions at temperature 40 ℃

• CVT/PWM controller2008 2010 2011 2012

70%*40%

* predicted valueAlternative Power CAPEX/site/yr , Site Load Consumption 1.0KW

50% 60%

2009

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