RAN16.0 BTS3902E
Product Description
Issue
01
Date
2014-05-30
HUAWEI TECHNOLOGIES CO., LTD.
Copyright © Huawei Technologies Co., Ltd. 2014. 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.
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and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective
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Notice
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Huawei Technologies Co., Ltd.
Address:
Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website:
http://www.huawei.com
Email:
support@huawei.com
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Contents
Contents
1 Introduction.................................................................................................................................... 1
1.1 Positioning ....................................................................................................................................................... 1
1.2 Benefits ............................................................................................................................................................ 2
2 Architecture .................................................................................................................................... 4
2.1 Logic Structure and Function ........................................................................................................................... 4
2.2 Appearance and Interface ................................................................................................................................. 5
3 Application and Installation Scenarios .................................................................................... 7
3.1 Application Scenarios ....................................................................................................................................... 7
3.2 Installation Scenarios ....................................................................................................................................... 8
4 Operation and Maintenance ....................................................................................................... 9
4.1 Operation and Maintenance Modes .................................................................................................................. 9
4.2 Operation and Maintenance Functions ........................................................................................................... 10
4.2.1 Commissioning Management ............................................................................................................... 10
4.2.2 Equipment Management ....................................................................................................................... 11
4.2.3 Software Management .......................................................................................................................... 11
4.2.4 Alarm Management ............................................................................................................................... 11
4.2.5 Security Management ........................................................................................................................... 12
4.2.6 Environment Monitoring ....................................................................................................................... 12
5 Technical Specifications ............................................................................................................ 13
5.1 RF Specifications ........................................................................................................................................... 13
5.2 Capacity ......................................................................................................................................................... 14
5.3 Output Power and Power Consumption ......................................................................................................... 14
5.3.1 Output Power ........................................................................................................................................ 14
5.3.2 Power Consumption .............................................................................................................................. 15
5.4 Clock .............................................................................................................................................................. 16
5.5 Physical Specifications ................................................................................................................................... 16
5.6 Environmental Specifications......................................................................................................................... 17
5.7 Standards Compliance .................................................................................................................................... 18
6 Acronyms and Abbreviations ................................................................................................... 20
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RAN16.0 BTS3902E
Product Description
1 Introduction
1
Introduction
1.1 Positioning
The rapid development of mobile communication technology brings sharp growth in the
number of mobile phone users. This growth creates increasingly high requirements for
network quality. Besides enhancing network coverage, operators also need to increase
network capacity to meet rapid increases in traffic volume.
In many hot spots, insufficient of network capacity and the existence of blind spots greatly
affect user experience. To solve these problems, operators urgently need an accurate and
low-cost coverage solution with flexible site deployment.
Following the philosophy of continuous innovation based on customers’ requirements,
Huawei unveils the industry-leading WCDMA mini base station BTS3902E. Characterized by
its small size, light weight, plug-and-play functionality, auto-configuration, and no
requirements for shelter or equipment room, the BTS3902E is flexible in site acquisition and
deployment, making it a quick and flexible site solution for operators.
The BTS3902E is a bi-carrier product. Figure 1-1 and Figure 1-2 shows the unit.
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RAN16.0 BTS3902E
Product Description
1 Introduction
Figure 1-1 BTS3902E (1900MHz / 2100MHz / AWS)
Figure 1-2 BTS3902E (850MHz)
1.2 Benefits
Compact Structure for Quick Network Construction
With a highly integrated design, the BTS3902 is small, light, and requires less spare parts,
making it easy to install and maintain. The BTS3902E features strong environment
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RAN16.0 BTS3902E
Product Description
1 Introduction
adaptability and has no need for an equipment room. It can be flexibly mounted on a wall or a
pole. The BTS3902E supports both integrated and separated antennas.
Expanded Capacity and Enhanced Coverage
The BTS3902E accurately absorbs traffic, and therefore expands network capacity and
reduces blind spots. This helps operators enhance network quality and user experience.
Low Power Consumption and Energy Saving
The BTS3902E is another green base station launched by Huawei. It assists operators in
constructing eco-friendly networks.
Smooth Evolution and CAPEX Saving
The BTS3902E supports HSPA+, and can provide high-speed data services in urban hot spots.
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2 Architecture
2
Architecture
2.1 Logic Structure and Function
As shown in Figure 2-1, the BTS3902E is an integrated base station with the following main
units: transmission interface unit, main processing unit, baseband processing unit, and RF
unit.
Figure 2-1 BTS3902E Structure
The function of each unit is as follows:

Transmission interface unit
Provide ports for communication with the RNC and the operation and maintenance (O&M)
channels to LMT or U2000.

Main processing unit
Manages the entire BTS3902E in a centralized manner in terms of O&M and signaling
processing. Also, provides the system clock.

Baseband processing unit
Schedules and processes the uplink and downlink user-plane data on the Iub interface.

RF unit
Modulates, demodulates, processes, and combines and divides baseband signals and RF
signals.

Antenna unit
Receives and transmits UMTS signals.
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RAN16.0 BTS3902E
Product Description
2 Architecture
2.2 Appearance and Interface
The BTS3902E has a modular structure with ports on the bottom panel, and an indicator area
on the left panel.
Figure 2-2x shows ports and indicators on the BTS3902E, and Table 2-1 describes the ports
and indicators.
Figure 2-2 Ports and indicators on the BTS3902E
Table 2-1 Ports on the BTS3902E
Modules
Port
Description
Bottom
panel
ANTA_TX/RX
Port A for transmitting and receiving RF signals
ANTB_TX/RX
Port B for transmitting and receiving RF signals
ANTC_SON
Antenna port of receiver for self-organized network
ETH *
FE/GE electrical port
OPT0
FE/GE optical port
OPT1*
FE/GE optical port
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2 Architecture
Modules
LED area
Port
Description
MON
Environment monitoring port
PWR
Power input
DBG
Debug port/ Clock test port/ Port for software
upgrading
Various LEDs
RUN, ALM, ACT, VSWR, O, O/E
NOTE
*: Port ETH and port OPT1 cannot be used at the same time.
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3
3 Application and Installation Scenarios
Application and Installation Scenarios
3.1 Application Scenarios
The BTS3902E works well for covering hot spots and reducing blind spots. Insufficient
network capacity in hot spots and blind spots greatly affect user experience. With its flexible
deployment, the low-cost BTS3902E helps operators solve these problems. Figure 3-1 shows
application scenarios for the BTS3902E.
Figure 3-1 Application scenarios
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Product Description
3 Application and Installation Scenarios
3.2 Installation Scenarios
The BTS3902E is ideal in outdoor installation scenarios. It can be installed on a wall, pole, or
L-shaped rack. The typical installation scenarios are shown in Figure 3-2.
Figure 3-2 Installation scenarios
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4 Operation and Maintenance
4
Operation and Maintenance
BTS3902E operation and maintenance (O&M) covers management, monitoring, and
maintenance of the software, hardware, and configuration of BTS3902Es. In addition,
BTS3902Es allow diversified O&M modes in different scenarios.
4.1 Operation and Maintenance Modes
The BTS3902Es support near-end, far-end, and local Ethernet service port operation and
maintenance (O&M).

In near-end O&M mode, maintenance personnel log in the local maintenance terminal
(LMT) through a local Ethernet maintenance port to maintain BTS3902Es.

In far-end O&M mode, maintenance personnel centrally maintain BTS3902Es on the
U2000 or LMT in the radio network controller (RNC) equipment room or operation and
maintenance center (OMC).

In local Ethernet service port maintenance mode, maintenance personnel maintain a
BTS3902E under the same RNC as the current BTS3902E through a local Ethernet
service port on the LMT. The IP route between the current BTS3902E and the other
BTS3902E is established by the RNC.
Figure 4-1 shows the O&M system of BTS3902Es.
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RAN16.0 BTS3902E
Product Description
4 Operation and Maintenance
Figure 4-1 O&M system of BTS3902E
The O&M system of BTS3902Es consists of the following elements:

LMT: is mainly used to locally or remotely maintain BTS3902Es and configure data.

BTS3902E: is the O&M object.

U2000: short for iManager U2000 Mobile Element Management System, which
centrally manages Huawei network devices; the U2000 also remotely and centrally
manages multiple base stations.

CME: short for Configuration Management Express, which can configures and manages
data for multiple base stations.
BTS3902E O&M modes have the following features:

Supports the Dynamic Host Configuration Protocol (DHCP) and Adaptive and Active
Cache Pool (AACP). When no data is configured for the system or when the system is
faulty, the O&M channel can be automatically set up. This enhances the system
reliability and facilitates remote troubleshooting.

Supports configuration baseline, simplifying the configuration rollback process and
improving configuration rollback reliability.

Provides a comprehensive system self-check function, omitting local software
commissioning.
4.2 Operation and Maintenance Functions
The OM subsystem of the BTS3902E provides functions such as commissioning management,
equipment management, software management, alarm management, security management,
and environment monitoring.
4.2.1 Commissioning Management
Commissioning management provides the following functions:

Equipment performance tests, such as CPU usage test, clock source quality test, and
power test

Service performance tests, such as uplink channel scanning and statistics for service
resource usage
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RAN16.0 BTS3902E
Product Description
4 Operation and Maintenance
4.2.2 Equipment Management
Equipment management consists of equipment maintenance and data configuration.
Equipment management has the following functions:

Equipment maintenance includes the maintenance of equipment, for example, managing
the status of equipment, performing self-check on the equipment, and calibrating the
clock.

Data configuration includes configuration, query, and backup of equipment parameters,
for example, configuring the parameters of the NodeB hardware, parameters of the
NodeB clock, algorithm parameters, and RF parameters.
4.2.3 Software Management
Software management provides the following functions:

Activating the software

Checking the compatibility of software and hardware versions

Managing versions, for example, querying hardware and software versions

Upgrading the software version, cold patch, and hot patch
4.2.4 Alarm Management
Alarm management involves equipment alarm management and environment alarm
management.

Equipment alarm management
The alarm management system detects and reports information about faults in real time.
The LMT or U2000 then displays the alarm information and provides appropriate
handling suggestions.
The alarm management system of the U2000 connects to an alarm box through a serial
port and supports audible and visual alarms through the LEDs or the alarm box. The
maintenance personnel can subscribe to specific alarms. When related alarms are
generated, the alarm information is forwarded to the handsets or pagers of the
maintenance personnel so that they can rectify the faults in time.

Environment alarm management
Generally, equipment rooms of NodeBs are unattended and distributed over a large area.
The equipment works in a relatively adverse environment, and emergency cases may
incur. To help you handle such emergencies, the BTS3902E provides a complete alarm
management system.
Alarm management provides the following functions:

Alarm detecting

Alarm reporting

Alarm shielding

Alarm acknowledging

Alarm pre-processing

Alarm correlation processing

Alarm help processing
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Product Description
4 Operation and Maintenance
4.2.5 Security Management
The operation rights of maintenance personnel are classified into multiple levels when both
NodeB and U2000 are applied. This ensures that the running equipment is free from
misoperations.
4.2.6 Environment Monitoring
The environment monitoring system provides customized solutions regarding door control,
infrared, smoke, water immersion, humidity, and temperature.
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Product Description
5 Technical Specifications
5
Technical Specifications
5.1 RF Specifications
Table 5-1 RF Specifications
Item
Specifications
Frequency Band
Frequency Band
Receive Frequency
Band (MHz)
Transmit Frequency
Band (MHz)
1900 MHz
1850 to 1910
1930 to 1990
2100 MHz
1920 to 1980
2110 to 2170
AWS
1710 to 1755
2110 to 2155
850MHz
824 to 849
869 to 894
Frequency Band
Receive Diversity
Sensitivity for Single
Antenna (dBm)
Receive Diversity
Sensitivity for
Double Antenna
(dBm)
1900 MHz/2100
MHz/AWS/850
MHz
-123.0*
-125.8*
Receiver sensitivity
NOTE
*As recommended in 3GPP TS25.104, receiver sensitivity is measured at the
antenna connector on the condition that the data rate over the channel
reaches 12.2 kbit/s and the Bit Error Rate (BER) does not exceed 0.001.
Internal antenna
Gain
1900 MHz : > 6 dBi
2100 MHz : > 6 dBi / = 9 dBi
AWS : > 6 dBi
850MHz: > 5 dBi
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Polarization mode
±45°
Directionality
Directional
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5 Technical Specifications
Item
Specifications
Vertical lobe width (3 dB)
1900 MHz/2100 MHz/AWS :
> 33°
850 MHz :
> 60°
Transmission ports
Horizontal lobe width (3
dB)
> 60°
VSWR
<2
FE/GE electrical port, FE/GE optical port
5.2 Capacity
Table 5-2 Capacity
Item
Specifications
Capacity
Two cells
Uplink: 192 CEs
Downlink: 192 CEs
5.3 Output Power and Power Consumption
5.3.1 Output Power
Table 5-3 Relationship between the BTS3902E configuration and output power
Frequency Band
MIMO
Configuration
Carrier
Configuration
Maximum
RF
Power per Carrier
2100MHz
MIMO
1
2×5W
2
2×2.5W
1
5W
2
5W
1
2×5W
2
2×2.5W
1
5W
2
5W
Non-MIMO
1900MHz
MIMO
Non-MIMO
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5 Technical Specifications
Frequency Band
MIMO
Configuration
Carrier
Configuration
Maximum
RF
Power per Carrier
AWS
MIMO
1
2×5W
2
2×2.5W
1
5W
2
5W
1
10W
2
5W
Non-MIMO
850MHz
Non-MIMO

The maximum output power equals the maximum output power of the power amplifier minus the
internal loss. The maximum output power is measured at the antenna connector in the RF module.

BTS3902E supports configuration of power amplifiers with different power.

When working on the 850 MHz band, the BTS3902E supports only single-antenna transmission, not
supporting dual-antenna transmission and MIMO.
5.3.2 Power Consumption
Table 5-4 Relationship between the BTS3902E configuration and power consumption
Frequency
Band
MIMO
Configuration
Carrier
Configur
-ation
Maximum
RF Power
per Carrier
Typical
Power
Consumption
(W)
Maximum
Power
Consumption
(W)
2100MHz
MIMO
1
2x5W
126
145
2
2x2.5W
126
145
1
5W
108
117
2
5W
126
145
1
2x5W
126
145
2
2x2.5W
126
145
1
5W
108
117
2
5W
126
145
1
2x5W
140
160
2
2x2.5W
140
160
1
5W
122
132
2
5W
140
160
1
10W
140
160
Non-MIMO
1900MHz
MIMO
Non-MIMO
AWS
MIMO
Non-MIMO
850MHz
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Non-MIMO
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5 Technical Specifications
Frequency
Band
MIMO
Configuration
Carrier
Configur
-ation
Maximum
RF Power
per Carrier
Typical
Power
Consumption
(W)
Maximum
Power
Consumption
(W)
2
5W
140
160

The typical power consumption is measured with the equipment 40% loaded at a temperature of
25°C.

The maximum power consumption is measured with the equipment 100% loaded at a temperature of
25°C.
5.4 Clock
Table 5-5 Clock
Item
Specifications
Clock
synchronization
IP clock (IEEE 1588V2) is synchronous with the Ethernet clock.
Precision: 0.05 ppm
5.5 Physical Specifications
Table 5-6 BTS902E Physical Specifications
Item
Specification
Dimensions
(height x
width x
depth)
1900 MHz/2100 MHz/AWS:
300 mm x 270 mm x 120 mm (without the antennas and case)
300 mm x 277 mm x 145 mm (with the antennas and case)
850 MHz:
300 mm x 270 mm x 127 mm (without the antennas and case)
300 mm x 277 mm x 170 mm (with the antennas and case)
Weight
1900 MHz/2100 MHz/AWS:
11 Kg (without the antennas and the case)
13 Kg (with the antennas and the case)
850 MHz:
14 Kg (without the antennas and the case)
16 Kg (with the antennas and the case)
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5 Technical Specifications
Item
Specification
Input
voltage
Input
110V/220V AC, 90/180V AC to 135/290V AC
-48V DC, -36 V DC to -57 V DC
NOTE
The DC power module is compatible with only RF units that operate on the
AWS frequency band.
Output
POE Port: -54V, 30W
MTBF
308 462 hours
MTTR
1 hours
Availability
0. 999996
5.6 Environmental Specifications
Table 5-7 Environmental Specifications
Item
Specification
Temperature
-40°C to +45°C (with solar radiation)
-40°C to +50°C (without solar radiation)
Storage
temperature
-40°C to +70°C
Ambient
relative
humidity
5% RH to 100% RH
Storage
relative
humidity
1 g/m3 to 30g/m3
Altitude
-60m to +1800m
Air pressure
70 kPa to 106 kPa
Operating
environment
EUROPEAN ETS 300 019-1-4Class4.1
Storage
environment
ETSI EN300019-1-1 V2.1.4 (2003-04) Class1.2 "Weatherprotected, not
temperature-controlled storage locations".
Transportatio
n
environment
ETSI EN300019-1-2 V2.1.4 (2003-04) Class 2.3 "Public transportation".
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5 Technical Specifications
Item
Specification
Anti-seismic
performance
IEC 60068-2-57 (1999-11) Environmental Testing – Part 2-57: Tests –
Test Ff: Vibration – Time-history method.
YD5083-99: Interim Provisions for Test of Anti-seismic Performance of
Telecommunications Equipment.
5.7 Standards Compliance
Table 5-8 Standards Compliance
Item
Specifications
EMC
The BTS3902E can meet the demand of electromagnetic
compatibility and is in accordance with the following
standards:

CISPR 22

EN 55022

EN 301 489-17

EN 301 489-23

CISPR 24

IEC 61000-4-2

IEC 61000-4-3

IEC 61000-4-4

IEC 61000-4-5

IEC 61000-4-6

GB 9254

ETSI 301 489-1

VCCI V-3

GB 9254-2008
3GPP
R99, R4, R5, R6, R7, R8, R9,and R10
Environmental protection
standard
RoHS
Lightning
standard
IEC61000-4-5, IEC 61312-1, YD 5098
protection
Protection standard
YD 5098, YD 5068-98, IEC 61000-4-5
Security standard
UL60950-1, IEC60950-1, EN60950-1, AS/NZS60950-1,
UL60950-22,
AS/NZS60950-22
Environmental standard
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IEC60950-22,
EN60950-22,
IEC 68-2-1, IEC 68-2-2, IEC60068-2-2, ETSI
EN300019-1-1, ETSI EN300019-1-2, ETSI EN300019-1-4
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5 Technical Specifications
Item
Specifications
Protection level
IP65
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6 Acronyms and Abbreviations
6
Acronyms and Abbreviations
C
CAPEX
Capital Expenditure
CE
Channel Element
D
DHCP
Dynamic Host Configuration Protocol
E
EIRP
Equivalent Isotropically Radiated Power
EMC
Electromagnetic Compatibility
F
FE
Fast Ethernet
G
GE
Gigabit Ethernet
GGSN
Gateway GPRS Support Node
H
HSDPA
High Speed Downlink Packet Access
HSUPA
High Speed Uplink Packet Access
HSPA+
High speed packet access plus
HPBW
Half-power beamwidth
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6 Acronyms and Abbreviations
I
IEEE
Institute Of Electrical And Electronics
Engineers
IP
Internet Protocol
L
LMT
Local Maintenance Terminal
M
MAC
Media Access Control
MGW
Media Gateway
MIMO
Multiple-input multiple-output
MSC
Mobile Switching Center
MTBF
mean time between failures
O
OFDM
Orthogonal Frequency Division Multiplexing
P
PA
Power Amplifier
R
RNC
Radio Network Controller
RoHS
Restriction of the use of certain hazardous
substances
S
SGSN
Serving GPRS Support Node
T
TRX
Transceiver
U
UE
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User Equipment
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UMTS
6 Acronyms and Abbreviations
Universal Mobile Telecommunications System
W
WCDMA
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Wideband Code Division Multiple Access
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