2g huawei power consumtion

GBSS12.0 BTS3900(A) Product Description

Issue V1.0

Date 2010-03-03

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2010. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are the property of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The purchased products, services, and features are stipulated by the commercial contract made between Huawei and the customer. All or partial products, services, and features described in this document may not be within the purchased scope or the usage scope. Unless otherwise agreed by the contract, all statements, information, and recommendations in this document are provided “AS IS” without warranties, guarantees or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents; but all statements, information, and recommendations in this document do not constitute the warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

http://www.huawei.com/

mailto:[email protected]


Issue V1.0 (2010-03-03) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. of 27

Contents

1 Introduction....................................................................................................................................4 1.1 Overview.......................................................................................................................................................... 4 1.2 Benefits ............................................................................................................................................................ 5

2 System Architecture......................................................................................................................6 2.1 Overview.......................................................................................................................................................... 6 2.2 BBU3900 ......................................................................................................................................................... 6 2.3 RFU.................................................................................................................................................................. 8 2.4 GATM ............................................................................................................................................................ 10 2.5 BTS3900(A) Cabinets .................................................................................................................................... 11

3 Products and Applications ........................................................................................................15 3.1 Typical Application Scenarios........................................................................................................................ 15 3.2 Portfolio and Application of Fourth-Generation BTSs................................................................................... 17

4 Technical Specifications ............................................................................................................19 4.1 RF Specification............................................................................................................................................. 19 4.2 Input Power .................................................................................................................................................... 21 4.3 Power Consumption ....................................................................................................................................... 21 4.4 Specification of the Equipment ...................................................................................................................... 23 4.5 Environment Specification............................................................................................................................. 25

5 Abbreviations ..............................................................................................................................27



1 Introduction

1.1 Overvi

.

wei takes the lead in developing the

The BTS3900 and BTS3900A consist of two basic modules. Flexible combination of basic oducts stay unique. As shown in Figure 1-1, the

ed by compact structure, high integration, low power

ew In rapidly changing field of mobile communication, there is utmost need for continuous improvement in the products. The growing trend in mobile communications comprises of a series of evolution: from GSM to EDGE to EDGE+, and from UMTS to HSPA to HSPA+, and LTE. To keep pace with the trend, the network operators are forced to increase the CAPEX and optimize the OPEX with the changing technologies, and therefore operators arecurrently facing the challenge of merging the multiple network subsystems into a more cost-effective network. The solution is to move towards the convergence of multi-mode networks

As an innovative and customer-oriented company, Huafourth generation BTSs, which will outclass other base stations to benefit operators with future-oriented mobile networks. The BTS3900 GSM and the BTS3900A GSM are indoor macro BTS and outdoor macro BTS of the fourth-generation BTSs respectively (hereinafter referred to as BTS3900 and BTS3900A respectively).

modules and cabinets help Huawei prBTS3900 and BTS3900A are characterizconsumption, and fast deployment.

Figure 1-1 BTS3900 and BTS3900A



1.2 Benefits

Simple Structure and Multi-Mode Convergence

The BTS3900 and BTS3900A have only two types of basic modules. The simplified structure reduces spare parts and saves maintenance cost. The basic modules combined with different cabinets increases the variety of installation modes, such as separate mode and stack mode. The BTS3900 and BTS3900A can support multiple network modes by sharing one cabinet or using the same transmission and network management system, thus achieving the convergence of multi-mode networks.

Broadband Service and Enhanced User Experience Considerable improvement has been made on the BTS in terms of baseband processing and internal bandwidth expansion, and support MCS-9 services at all timeslot levels on the air interface. IP transport is supported on the Abis interface, the transmission bandwidth expands enormously, which further enhances the user experience.

Low Power Consumption With the help of the advanced hardware designs, for example, multi-carrier PA, as well as a series of software power saving technique, the power consumption of the BTS3900 and BTS3900A is greatly reduced, which helps in deploying an environment friendly network.

Smooth Evolution and Reduced CAPEX The BTS3900 and BTS3900A supports smooth evolution to EDGE+. During the evolution, all the hardware can be reused. The BTS3900 and BTS3900A can also support multiple network modes by adding RF modules, which helps operators to reduce CAPEX.



2 System Architecture

2.1 Overvie hey have two types of basic modules:

0) and Radio Frequency Unit (RFU), which are connected

TMA ATM), an optional module tailored for need in different scenarios, is

The cabinet is an indoor macro cabinet, and the BTS3900A cabinets are applied adio Frequency Cabinet (RFC), Advanced Power referred to as APM30H)), Intergrated Battery Backup

Transmission Cabinet (TMC11H).

2.2 BBU39en the BTS and the BSC.

intenance (OM) and signal

nce Terminal (LMT) or

2.2.1 AppearThe B e 2-1 shows the BBU3900.

ew Th BTS3900 and BTS3900A have a modular design. TBaseband control Unit (BBU390through high-speed Common Public Radio Interface (CPRI) ports. The GSM Antenna and

Control module (Gused to control the TMA and Remote Electrical Tilt (RET) antenna.

BTS3900outdoors, which include the outdoor RModule (APM30H(Ver.B)(hereinafter System (IBBS200D/IBBS200T), and

00 It is a baseband control unit, responsible for the interaction betweThe BBU3900 performs the following functions:

Signal interaction between the BTS and the BSC Provides the system clock Manages the entire BTS system in terms of Operation and Ma

processing Provides an OM channel connection to the Local Maintena

M2000.

ance of the BBU3900 BU3900 has a case structure. Figur

Figure 2-1 BBU3900



The following boards and module are mandatory for the BBU3900:

ransmission Processing Unit

he BBU3900.

GTMU: the main control board FAN: the FAN unit UPEU: Power module

The following boards and module are optional for the BBU3900:

USCU: the Universal Satellite Card and Clock Unit UEIU: the Universal Environment Interface Unit UTRP: the Universal T

Figure 2-2 shows the panel of t

Figure 2-2 Panel of the BBU3900

2.2.2 Ports on the B 3900

Table 2-1 P e mandat

BU

orts on th ory boards of the BBU3900

Board Port Specification

CPRI For communication with the RF module (6 ports) GTMU

E1/T1 Supporting four E1s/T1s

ETH For local maintenance and commissioning

FE0 Electrical port for IP transport over the Abis interface

FE1 Optical port for IP transport over the Abis interface

TST For testing the clock

USB tic software upgrade through the USB disk Used for automa

EXT Reserved port

PWR Power supply port

MON0 Supporting one RS485 signal


EXT-ALM0 s Supporting four dry contact alarm

UPEU

M1 EXT-AL Supporting four dry contact alarms



Table 2-2 Ports on the optiona U3900 l boards of the BB

Board Port Specification



EXT-ALM0 Supporting four dry contact alarms

UEIU

M1 EXT-AL Supporting four dry contact alarms

GPS Used for receiving GPS signals USCU

RGPS Used for receiving RGPS signals

TOD0 Used for receiving or transmitting 1PPS+TOD signals

TOD1 receiving TODUsed for receiving or transmitting 1PPS+TOD signals, and

signals from the M1000

BITS Used for receiving BITS clock signals, supporting input of 2.048 MHz and 10 MHz clock reference so

adaptive urce

M-1PPS Used for receiving 1PPS signals from the M1000

UTRP E1/T1 Supporting eight E1s/T1s

2.3 RFU The RFU lowing functions:

between baseband signals and RF signals

The RFU is classified into following two types:

Double Radio Frequency Unit (DRFU): supports a maximum of two carriers for small- or medium-capacity scenario.

GSM Radio Frequency Unit (GRFU): supports a maximum of six carriers for large-capacity system.

2.3.1 Appearance of the DRFU The DRFU, known as the RF module, adopts the double-transceiver technique and installed in the BTS3900 or BTS3900A. Figure 2-3 shows the DRFU.

performs the fol

Modulation and demodulation Data processing Signal combination and division



Figure 2-3 DRFU

2.3.2 Ports on the DRFU

Table 2-3 Ports on the DRFU

Port Specification

ANT1

ANT2

Antenna connector, used to connect the antenna system

CPRI0 Connected to the lower-level RFU in the cascading configuration

CPRI1 Connected to the BBU directly, or connected to the upper-level RFU in the cascading configuration


RX1 in Input port for diversity signals in antenna channel 1

RX1 out Output port for diversity signals in antenna channel 1

RX2 in Input port for diversity signals in antenna channel 2

RX2 out Output port for diversity signals in antenna channel 2

2.3.3 Appearance of the GRFU The GRFU, also an RF module, adopts the multi-carrier technology and resides in the BTS3900 or BTS3900A. Figure 2-4 shows the GRFU.



Figure 2-4 GRFU

2.3.4 Ports on the GRFU

Table 2-4 Ports on the GRFU

Port Specification

ANT_TX/RXA

ANT_ RXB

Antenna connector, used to connect the antenna system

CPRI0 Connected to the BBU directly, or connected to the upper-level RFU in the cascading configuration

CPRI1 Connected to the lower-level RFU in the cascading configuration

MON Monitoring port


RX_INB Input port for diversity signals in the antenna channel

RX_OUTA Output port for diversity signals in the antenna channel

2.4 GATM The GATM controls the RET antenna and TMA. When the DRFU is installed in the cabinet, GATM should be configured if the RET antenna or Tower Mounted Amplifier is selected. The GRFU controls the RET antenna and TMA. It is not required to configure the GATM while configuring the GRFU.

2.4.1 Appearance of the GATM The GATM resides in the BTS3900 or BTS3900A . Figure 2-5 shows the GATM.



Figure 2-5 GATM

2.4.2 Ports on the GATM

Table 2-5 Ports on the GATM

Port Specification

ANT0, ANT2, ANT4 Providing power for the TMA and transmitting control signals for the RET antenna

ANT1, ANT3, ANT5 Providing power for the TMA

COM1 Connected to the BBU3900

COM2 Providing the extended RS485 port

-48V Power supply port

2.5 BTS3900(A) Cabinets

2.5.1 BTS3900 Cabinet The BTS3900 cabinet, an indoor macro cabinet, houses the BBU3900 and RFUs. A single BTS3900 cabinet accommodates a maximum of six RFU. The BTS3900 cabinet supports the following functions:

Power distribution and surge protection -48 V DC power input +24 V DC and 220 V AC power inputs if configured with different power modules

Figure 2-6, Figure 2-7, and Figure 2-8 show the internal structure of the indoor macro cabinets with different power inputs.

Figure 2-6 –48 V DC BTS3900 cabinet



Figure 2-7 +24 V DC BTS3900 cabinet

Figure 2-8 220 V AC BTS3900 cabinet

2.5.2 RFC The RFC houses the RFUs and provides the functions such as power distribution and surge protection. The RFC works in direct-ventilation mode to dissipate heat, and it can be configured with a maximum of six RFUs. Figure 2-9 shows the internal structure of the RFC.

Figure 2-9 Internal structure of the RFC



2.5.3 APM30H The APM30H provides -48 V DC power and backup power to the outdoor macro BTS and also provides installation space for the BBU3900 and other devices. The APM30H, which can be installed in areas of poor air quality, dissipates heat based on the heat exchange system and two air circulation fans. The APM30H is compact and lightweight. Figure 2-10 shows the internal structure of the APM30H.

Figure 2-10 Internal structure of the APM30H

Table 2-6 Technical specifications of the APM30H

Item Specification

Dimensions (H x W x D)

700 mm x 600 mm x 480 mm (excluding the base)

Weight APM30H: < 76.5 kg (excluding user devices)

Working temperature

–40°C to +50°C The AC heat exchanger is required if the temperature is below –20°C.

Engineering specifications

Relative humidity 5% RH to 100% RH

Input voltage 176 V AC to 290 V AC AC input

Frequency 50 Hz/60 Hz

Output voltage –48 V DC DC output

Quantity of DC outputs

30 A: 4 12 A: 2 4 A: 4

Without the AC heat exchanger

Providing 7 U space for installation Installation space

With the AC heat exchanger

Providing 6 U space for installation



2.5.4 IBBS200D/IBBS200T The IBBS200D/IBBS200T is installed if the long-time power backup is required. Small sized and easy to transport, the IBBS200D/IBBS200T can be applied to outdoors. The IBBS200D works in direct-ventilation mode to dissipate heat. The cooler is installed on the inner side of the IBBS200T cabinet door, enabling the IBBS200T to adapt to high ambient temperature.

The IBBS200D/IBBS200T provide a maximum of –48 V 184 Ah DC backup power through the built-in batteries. Figure 2-11 shows the internal structure of the IBBS200D/IBBS200T.

Figure 2-11 Internal structure of the IBBS200D/IBBS200T

2.5.5 TMC11H

The TMC11H is configured if additional transmission space is required. Small sized and easy to transport, the TMC11H can be installed in outdoors, and it dissipates heat based on the heat exchanger system and two air circulation fans. The BBU3900 can be installed in the TMC11H.

The TMC11H provides a space of 11 U for installing user devices. Figure 2-12 shows the internal structure of the TMC11H.

Figure 2-12 Internal structure of the TMC11H



3 Products and Applications

3.1 Typical -48 V BTS3900 cabinet can be stacked on top of

another -48 V BTS3900 cabinet; Figure 3-1 shows the single BTS3900 and two BTS3900s in wned as the most compact indoor macro BTS in telecom industry, the large capacity, high scalability, and small footprint. It can also support

Application Scenarios

The BTS3900 is installed indoors. The

stack mode. RenoBTS3900 featuresGSM+UMTS dual-mode application.

Figure 3-1 BTS3900

For outdoor installation scenarios, the outdoor macro BTS (BTS3900A) is used. The RFU is installed in the RFC, and the BBU3900 is installed in the APM30 or TMC. Table 3-1

0A. Figure 3-2, Figure 3-3, and Figure 3-4 , TMC11H+RFC, APM30H+RFC+IBBS200D,

a C +TMC 0D.

T onfigu

describes the typical configuration of the BTS390show the product portfolio of APM30H+RFCnd APM30H+ RF 11H+IBBS20

able 3-1 Typical c ration BTS3900A

Configuration Description

APM30H+RFC Six RFU, no backup power

TMC11H+RFC Providing installation space for user devices and no backup power; The site supplies DC power.



Configuration Description

APM30H+RFC+ IBBS200D

Six RFU: power backup (184 Ah) for 5 hours

APM30H+RFC+ Six RFU: power backup (184 Ah) for 4 hours (if the power umption of the TMC is less than 200 W) TMC11H+IBBS200D cons

Figure 3-2 APM30H+RFC

Figure 3-3 TMC11H+RFC



Figure 3-4 APM30H+RFC+IBBS200D

Figure 3-5 APM30H+RFC+TMC11H+IBBS200D

3.2 Portfolio and Application of Fourth-Generation BTSs

By providing various product forms of fourth-generation BTSs to cater the demand for network deployments in different scenarios, Huawei provides operators with a comprehensive total network solution. Huawei fourth-generation BTSs consist of the indoor macro BTS (BTS3900), outdoor macro BTS (BTS3900A), distributed BTS (DBS3900), and compact BTS (BTS3900E).

The BTS3900 applies to indoor installation scenarios where population density is high, traffic is large, lease expense for equipment rooms is high, and space is limited. The BTS3900A applies to outdoor installation scenarios in urban, suburb, and rural areas where large-capacity and wide coverage is required. The DBS3900 applies to outdoor scenarios where wide coverage is required and site construction is difficult. The BTS3900E applies to indoor coverage and coverage in hotspot areas. Figure 3-6 shows the applications of the Huawei fourth-generation BTSs.



Figure 3-6 Portfolio and application of fourth-generation BTSs



4 Technical Specifications

4.1 RF Specification T peciable 4-1 RF S fication of the DRFU

Item Specification

Frequency band RX freque(MHz)

ncy band ncy band TX freque(MHz)

EGSM 900 MHz 880–915 925–960

PGSM 900 MHz 890–915 935–960

Supported frequency band

GSM 1,800 MHz 1,710–1,785 1,805–1,880

Capacity aximum of 12 carriers, and a single cell 4 carriers

imum o 2.

A single cabinet supports a msupports a maximum of 2 .

A single site supports a max f 36 carriers and a maximumconfiguration of S12/12/1

Output power

900 MHz (GMSK/8PSK) bined: 45 W/30

0 W/14 W/47 W

PSK) ombined

Combined: 1 PBT: 63 W/4

Uncom Combined: 2

W

Unc

PBT: 71 W

1,800 MHz (GMSK/8: 40 W/26 W 8 W/12 W2 W

Receive independency

Two-way receive diversity

Four-way receive diversity

Receiver specification –113 dBm –116 dBm –118.5 dBm



Table 4-2 RF Specification of the GRFU

Item Specification

Frequency band RX frequency band (MHz)

TX frequency band (MHz)

PGSM 900 MHz (V2) 890–915 935–960

EGSM 900 MHz (V2) 880–915 925–960

1,710–1,770 1,805–1,865 GSM 1,800 MHz (V2)

1,725–1,785 1,820–1,880

1,850–1,890 1,930–1,970

Supported frequency band

GSM 1,900 MHz (V1)

1,870–1,910 1,950–1,990

Capacity A single cabinet supports a maximum of 36 carriers, and a single cell supports a maximum of 24 carriers.

A single site supports a maximum of 72 carriers and a maximum configuration of S24/24/24.

Frequency band Receive independency Two-way receive diversity

900 MHz –113.5 dBm –116.5 dBm

Receiver specification (V2)

1,800 MHz –113.8 dBm –116.8 dBm

Frequency band Receive independency Two-way receive diversity

Receiver specification (V1)

1,900 MHz –113 dBm –116 dBm

900 MHz/1,800 MHz (GMSK/8PSK, V2)

With power sharing: 3 TRX: 31 W/20 W 4 TRX: 27 W/17 W 5 TRX: 16 W/10 W 6 TRX: 16 W/10 W

Without power sharing: 3 TRX: 27 W/17 W 4 TRX: 20 W/13 W 5 TRX: 12 W/8 W 6 TRX: 10 W/6.6 W

Output power (Class 0)

RF standard: ETSI TS 100 910 V8.20.0

900 MHz/1,800 MHz (GMSK/8PSK, V2)

With power sharing: 3TRX：31W/20W 4TRX：27W/17W 5TRX：20W/13W 6TRX：20W/13W

Without power sharing: 3TRX：27W/17W 4TRX：20W/13W 5TRX：16W/10W 6TRX：12W/8W

Output power (Class 2)

1,900 MHz (GMSK/8PSK, V1)



Item Specification

With power sharing: 3TRX：31W/20W 4TRX：27W/17W 5TRX：20W/13W 6TRX：16W/10W

Without power sharing: 3TRX：27W/17W 4TRX：20W/13W 5TRX：12W/8W 6TRX：10W/6.6W

3GPP TS 45.005 V8.2.0 multicarrier BTS class 2 requirement RF Standard

Class 0 is the multi-carrier RF standard defined on the basis of the ETSI standard for the GSM SCPA.

4.2 Input Power Table 4-3 Input Power

Item Specification

Input power –48V DC; Voltage range: –38.4 V DC to –57 V DC +24V DC; Voltage range: +21.6 V DC to +29 V DC 110V AC; Voltage range: 90 V AC to 135 V AC 220V AC; Voltage range: 176 V AC to 290 V AC

4.3 Power Consumption 4.3.1 Power Consumption of the BTS3900

Table 4-4 Power Consumption (DRFU)

Item Specification

Configuration Typical value (W)

S2/2/2, 900 MHz, TOC=45 W 750

S4/4/4, 900 MHz, TOC=20 W 1,140

S2/2/2, 1,800 MHz, TOC=40 W 750

Power consumption(DC input)

S4/4/4, 1,800 MHz, TOC=18 W 1,150



The typical power consumption is measured with a 30% load.

Table 4-5 Power Consumption (GRFU, V2)

Item Specification


S4/4/4, 900 MHz, TOC=20 W 680

S6/6/6, 900 MHz, TOC=16 W 670

S4/4/4, 1,800 MHz, TOC=20 W 710

Power consumption (Class 0, DC input)

S6/6/6, 1,800 MHz, TOC=16 W 710

S4/4/4, 900 MHz, TOC=20 W 630

S6/6/6, 900 MHz, TOC=20 W 680

S4/4/4, 1,800 MHz, TOC=20 W 680

Power consumption (Class 2, DC input)

S6/6/6, 1,800 MHz, TOC=20 W 720

4.3.2 Power Consumption of the BTS3900A

Table 4-6 Power Consumption (DRFU)

Item Specification


S2/2/2, 900 MHz, TOC=45 W 860

S4/4/4, 900 MHz, TOC=20 W 1,290

S2/2/2, 1,800 MHz, TOC=40 W 860

Power consumption(AC input)

S4/4/4, 1,800 MHz, TOC=18 W 1,300



Table 4-7 Power Consumption (GRFU, V2)

Item Specification


S4/4/4, 900 MHz, TOC=20 W 770

S6/6/6, 900 MHz, TOC=16 W 760

S4/4/4, 1,800 MHz TOC=20 W 810

Power consumption (Class 0, AC input)

S6/6/6, 1,800 MHz, TOC=16 W 800

S4/4/4, 900 MHz, TOC=20 W 720

S6/6/6, 900 MHz, TOC=20 W 710

S4/4/4, 1,800 MHz, TOC=20 W 770

Power consumption (Class 2, AC input)

S6/6/6, 1,800 MHz, TOC=20 W 820

4.4 Specification of the Equipment Table 4-8 Equipment specification of BTS3900

Item Specification

Transmission ports

GTMU: four E1s/T1s, one FE electrical port, and one FE optical port GTMU+1UTRP: eight E1s/T1s, one FE electrical port, and one FE optical port


900 mm x 600 mm x 450 mm (without base) 940 mm x 600 mm x 450 mm (with base)

Weight Empty cabinet:57 kg Cabinet in full configuration:132 kg

Table 4-9 Equipment specification of BTS3900A

Item Specification

Transmission ports

GTMU: four E1s/T1s, one FE electrical port, and one FE optical port GTMU+1UTRP: eight E1s/T1s, one FE electrical port, and one FE optical port


RFC: 700 mm x 600 mm x 480 mm Stacked with APM30H: 1400 mm x 600 mm x 480 mm(without base) Stacked with APM30H: 1600 mm x 600 mm x 480 mm(with base)



Item Specification

Weight Empty RFC cabinet: 58 kg

RFC Cabinet in full configuration: 118 kg

Stacked with APM30H in full configuration: 183 kg



4.5 Environment Specification Table 4-10 Environment Specification for BTS3900

Item Specification

–20°C to +55°C (Short-term : +50°C to +55°C) Temperature

5% RH to 95% RH Relative humidity

70 kPa to 106 kPa Air pressure

IP20 Protection degree

ETSI EN 300019-1-1 Class 1.2: “Weather protected, not temperature-controlled storage locations”

Storage environment

ETSI EN 300019-1-2 Class 2.3: “Public transportation” Transport environment

EMC The BTS3900 meets the Electromagnetic Compatibility (EMC) requirements and complies with the following standards:

CISPR 22(2003) CISPR 24(1998-09+ A1:2001 A2:2003) ETSI 301 489-1 V1.5.1 (2004) FCC 47CFR Part15 (2006) IEC61000-4-2 IEC61000-4-3 IEC61000-4-4 IEC61000-4-5 IEC61000-4-6 IEC61000-4-29

≥ 99.9994% Availability

MTBF DRFU: 161,000 hours GRFU: 167,000 hours

≤ 1 hour MTTR



Table 4-11 Environment Specification of BTS3900A

Item Specification

–40°C to +55°C (Short-term : +50°C to +55°C) Temperature

5% RH to 100% RH Relative humidity

70 kPa to 106 kPa Air pressure

IP55 Protection degree

ETSI EN 300019-1-1 Class 1.2: “Weather protected, not temperature-controlled storage locations”

Storage environment

Transport environment

ETSI EN 300019-1-2 Class 2.3: “Public transportation”

EMC The BTS3900A meets the Electromagnetic Compatibility (EMC) requirements and complies with the following standards:

CISPR 22(2003) CISPR 24(1998-09+ A1:2001 A2:2003) ETSI 301 489-1 V1.5.1 (2004) FCC 47CFR Part15 (2006) IEC61000-4-2 IEC61000-4-3 IEC61000-4-4 IEC61000-4-5 IEC61000-4-6 IEC61000-4-29

≥ 99.9991% Availability

MTBF DRFU: 106,000 hours GRFU: 109,000 hours

≤ 1 hour MTTR



5 Abbreviations

Abbreviation Expansion

APM Advanced Power Module

BBU Baseband control Unit

CPRI Common Public Radio Interface

DRFU Double Radio Frequency Unit

GATM GSM Antenna and TMA control Module

GRFU GSM Radio Frequency Unit

GTMU iming & Management Unit for BBU GSM Transmission &T

IBBS Integrated Battery Backup System

LTE Long Term Evolution

MTBF Mean Time Between Failures

MTTR Mean Time to Recovery

PMU Power and Environment Monitoring Unit

RFC Radio Frequency Cabinet

RFU Radio Frequency Unit

TMC Transmission Cabinet

TOC Top of Cabinet

UEIU Universal Environment Interface Unit

UPEU Universal Power and Environment Interface Unit

USCU Universal Satellite Card and Clock Unit

UTRP Universal Transmission Processing Unit

2g huawei power consumtion

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