BTS3900A GSM V300R008
Product Description
Issue
03
Date
2008-07-15
Part Number
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BTS3900A GSM Product Description
Contents
Contents About This Document.....................................................................................................................1 1 System Structure of the BTS3900A.........................................................................................1-1 2 Overview of the BTS3900A......................................................................................................2-1 2.1 Marketing Orientation of the BTS3900A........................................................................................................2-2 2.2 Structure of the BTS3900A Cabinet...............................................................................................................2-2 2.3 Logical Structure of the BTS3900A................................................................................................................2-7 2.4 Software Structure of the BTS........................................................................................................................2-8
3 Power Distribution Modes of the BTS3900A.......................................................................3-1 4 Monitoring System of the BTS3900A.....................................................................................4-1 5 Reference Clocks of the BTS3900/BTS3900A........................................................................5-1 6 Signal Flow of the BTS3900/BTS3900A.................................................................................6-1 7 Topologies of the BTS...............................................................................................................7-1 8 Configuration of the BTS3900/BTS3900A.............................................................................8-1 8.1 Configuration Principles of the BTS3900/BTS3900A....................................................................................8-2 8.2 RF Signal Cable Connections of the DRFU....................................................................................................8-7 8.3 Topology of DRFUs Connected by CPRI Cables.........................................................................................8-14 8.4 Typical Configuration of the BTS3900/BTS3900A.....................................................................................8-16
9 OM System of the BTS..............................................................................................................9-1 9.1 OM Modes of the BTS....................................................................................................................................9-2 9.2 OM Functions of the BTS...............................................................................................................................9-6
10 Technical Specifications of the BTS3900A........................................................................10-1 10.1 Capacity Specifications of the BTS3900/BTS3900A.................................................................................10-2 10.2 RF Specifications of the BTS3900/BTS3900A..........................................................................................10-2 10.3 Engineering Specifications of the BTS3900A............................................................................................10-3 10.4 Surge Protection Specifications of the BTS3900A.....................................................................................10-5 10.5 Physical Ports of the BTS3900A.................................................................................................................10-5 10.6 Compliance Standards of the BTS3900/BTS3900A...................................................................................10-8 10.7 Environmental Requirements of the BTS3900A......................................................................................10-10 10.7.1 Environmental Requirements for Operating the BTS3900A...........................................................10-10 Issue 03 (2008-07-15)
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Contents
10.7.2 Environmental Requirements for Transporting the BTS3900A......................................................10-12 10.7.3 Environmental Requirements for Storing the BTS3900A...............................................................10-15
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BTS3900A GSM Product Description
Figures
Figures Figure 1-1 BTS3900A system architecture..........................................................................................................1-1 Figure 2-1 Typical configuration of a BTS3900A cabinet (1).............................................................................2-3 Figure 2-2 Typical configuration of a BTS3900A cabinet (2).............................................................................2-4 Figure 2-3 Typical configuration of a BTS3900A cabinet (3).............................................................................2-5 Figure 2-4 Typical configuration of a BTS3900A cabinet (4).............................................................................2-6 Figure 2-5 Logical Structure of the BTS3900A...................................................................................................2-7 Figure 2-6 Software structure of the BTS............................................................................................................2-8 Figure 3-1 Power distribution of the BTS3900A.................................................................................................3-1 Figure 4-1 Monitoring ports of the BBU..............................................................................................................4-1 Figure 4-2 Structure of the monitoring system....................................................................................................4-2 Figure 6-1 DL traffic signal flow.........................................................................................................................6-1 Figure 6-2 UL traffic signal flow.........................................................................................................................6-2 Figure 6-3 Signaling flow.....................................................................................................................................6-3 Figure 7-1 Star topology of the BTS....................................................................................................................7-1 Figure 7-2 Chain topology of the BTS.................................................................................................................7-1 Figure 7-3 Tree topology of the BTS...................................................................................................................7-2 Figure 7-4 Ring topology of the BTS...................................................................................................................7-2 Figure 7-5 Regroupment for disconnection in the ring topology.........................................................................7-5 Figure 8-1 Slots of the BBU.................................................................................................................................8-7 Figure 8-2 Mapping between the RF signal cables and their colors....................................................................8-8 Figure 8-3 Connections of RF cables for S1 (without transmit diversity/with transmit diversity)/S2 (without transmit diversity).................................................................................................................................................8-9 Figure 8-4 Connections of RF cables for S2 (PBT)/S3 (without transmit diversity)/S4 (without transmit diversity) .............................................................................................................................................................................8-10 Figure 8-5 Connections of RF signal cables for S2 (4-way receive diversity)..................................................8-11 Figure 8-6 Connections of RF cables for S2 (transmit diversity)/S4 (transmit independency).........................8-12 Figure 8-7 Connections of RF cables for S5 (without transmit diversity)/S6 (without transmit diversity).......8-13 Figure 8-8 Connections of RF cables for S7 (without transmit diversity)/S8 (without transmit diversity).......8-14 Figure 8-9 Typical topology of the DRFUs.......................................................................................................8-15 Figure 9-1 Network structure of the OM system.................................................................................................9-2
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BTS3900A GSM Product Description
Tables
Tables Table 4-1 Monitoring signals of the BTS3900A..................................................................................................4-2 Table 4-2 Functions of the Monitoring System....................................................................................................4-2 Table 7-1 Comparison of Network Topologies....................................................................................................7-3 Table 8-1 RF configuration principles of the BTS3900/BTS3900A....................................................................8-3 Table 8-2 Configuration principles of BBU boards.............................................................................................8-7 Table 8-3 Configuration (1)..................................................................................................................................8-9 Table 8-4 Configuration (2)................................................................................................................................8-10 Table 8-5 Configuration (3)................................................................................................................................8-11 Table 8-6 Configuration (4)................................................................................................................................8-12 Table 8-7 Configuration (5)................................................................................................................................8-13 Table 8-8 Three typical topologies of the DRFUs.............................................................................................8-15 Table 8-9 Typical configuration of the BTS3900/BTS3900A...........................................................................8-16 Table 9-1 Functions of the BTS OM system........................................................................................................9-3 Table 10-1 Operating frequency bands of the BTS3900/BTS3900A.................................................................10-2 Table 10-2 Output power of the DRFU in the BTS3900/BTS3900A................................................................10-2 Table 10-3 Receiver sensitivity of the BTS3900/BTS3900A............................................................................10-3 Table 10-4 Dimensions.......................................................................................................................................10-3 Table 10-5 Weight..............................................................................................................................................10-4 Table 10-6 Specifications of the input power.....................................................................................................10-4 Table 10-7 BTS3900A Power Consumption......................................................................................................10-4 Table 10-8 Surge protection specifications of the BTS3900A...........................................................................10-5 Table 10-9 Power ports of the BTS3900............................................................................................................10-6 Table 10-10 BBU transmission ports.................................................................................................................10-6 Table 10-11 DRFU transmission ports...............................................................................................................10-7 Table 10-12 BTS3900A alarm ports..................................................................................................................10-7 Table 10-13 Other external ports of the BTS3900A..........................................................................................10-7 Table 10-14 Climatic requirements..................................................................................................................10-10 Table 10-15 Requirements for the density of chemically active substances....................................................10-11 Table 10-16 Requirements for mechanical stress.............................................................................................10-12 Table 10-17 Climatic requirements..................................................................................................................10-12 Table 10-18 Requirements for the density of mechanically active substances................................................10-14 Table 10-19 Requirements for the density of chemically active substances....................................................10-14 Table 10-20 Requirements for mechanical stress.............................................................................................10-14 Issue 03 (2008-07-15)
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BTS3900A GSM Product Description
Tables
Table 10-21 Climatic requirements..................................................................................................................10-15 Table 10-22 Requirements for the density of mechanically active substances................................................10-16 Table 10-23 Requirements for the density of chemically active substances....................................................10-17 Table 10-24 Requirements for mechanical stress.............................................................................................10-17
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BTS3900A GSM Product Description
About This Document
About This Document
Purpose This describes the overview of the BTS3900A GSM. It describes the components, software and hardware structure, subsystems, configuration type, signal flow, clock synchronization, and topologies of the BTS3012. This document also lists the technical specifications of the capacity, RF, engineering, lightning protection, and physical ports of the BTS3900A.
Product Version The following table lists the product version related to this document. Product Name
Product Version
BTS3900A GSM (BTS3900 for shot afterwards)
V300R008
Intended Audience This document is intended for: l
Network planners
l
Field engineers
l
System engineers
Change History For changes in the document, refer to Changes in BTS3900A GSM Production Description.
Organization 1 System Structure of the BTS3900A This describes the BTS3900A. It consists of the BBU3900, the DRFU module, the power distribution box, and RF cabinet. The BBU3900 is installed in the power distribution box. The DRFU module is installed in the RF cabinet. 2 Overview of the BTS3900A This describes the physical structure, logical structure, and software structure of the BTS3900A. Issue 03 (2008-07-15)
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BTS3900A GSM Product Description
About This Document
3 Power Distribution Modes of the BTS3900A The BTS3900A allows the 220 V AC input. 4 Monitoring System of the BTS3900A This describes the monitoring system of the BTS3900A. The monitoring system monitors the power, fans, and environment. 5 Reference Clocks of the BTS3900/BTS3900A The BTS3900/BTS3900A supports three types of reference clocks: line clock, BITS clock, and free-run clock. 6 Signal Flow of the BTS3900/BTS3900A The signal flow of the BTS3900/BTS3900A consists of the traffic signal flow and the signaling flow of the BTS. The BTS3900/BTS3900A signal flow is classified into the DL traffic signal flow, UL traffic signal flow, and signaling flow. 7 Topologies of the BTS The BTS supports the star, chain, tree, and ring topologies. The BBU and DRFUs support multiple network topologies such as star, chain, and ring topologies. In practice, these topologies can be combined. Optimum utilization of the topologies can improve the quality of service and save the investment on the transmission equipment. 8 Configuration of the BTS3900/BTS3900A This describes the configuration principles of the BTS3900/BTS3900A, RF cable connections, CPRI cable connections, and typical configurations of the DRFU. 9 OM System of the BTS The OM system implements the management, monitoring, and maintenance tasks of the BTS3900. It provides various OM modes and multiple maintenance platforms to meet different maintenance requirements. 10 Technical Specifications of the BTS3900A The technical specifications of the BTS3900A involve capacity specifications, RF specifications, engineering specifications, surge protection specifications, physical ports, environmental requirements, and compliance standards.
Conventions 1. Symbol Conventions The following symbols may be found in this document. They are defined as follows Symbol
Description
DANGER
2
Indicates a hazard with a high level of risk that, if not avoided, will result in death or serious injury.
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BTS3900A GSM Product Description
About This Document
Symbol
Description
WARNING
CAUTION
Indicates a hazard with a medium or low level of risk which, if not avoided, could result in minor or moderate injury. Indicates a potentially hazardous situation that, if not avoided, could cause equipment damage, data loss, and performance degradation, or unexpected results. Indicates a tip that may help you solve a problem or save your time.
TIP
Provides additional information to emphasize or supplement important points of the main text.
NOTE
2. General Conventions Convention
Description
Times New Roman
Normal paragraphs are in Times New Roman.
Boldface
Names of files,directories,folders,and users are in boldface. For example,log in as user root .
Italic
Book titles are in italics.
Courier New
Terminal display is in Courier New.
3. Command Conventions Convention
Description
Boldface
The keywords of a command line are in boldface.
Italic
Command arguments are in italic.
[]
Items (keywords or arguments) in square brackets [ ] are optional.
{x | y | ...}
Alternative items are grouped in braces and separated by vertical bars.One is selected.
[ x | y | ... ]
Optional alternative items are grouped in square brackets and separated by vertical bars.One or none is selected.
{ x | y | ... } *
Alternative items are grouped in braces and separated by vertical bars.A minimum of one or a maximum of all can be selected.
[ x | y | ... ] *
Alternative items are grouped in braces and separated by vertical bars.A minimum of zero or a maximum of all can be selected.
4. GUI Conventions Issue 03 (2008-07-15)
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BTS3900A GSM Product Description
About This Document
Convention
Description
Boldface
Buttons,menus,parameters,tabs,window,and dialog titles are in boldface. For example,click OK.
>
Multi-level menus are in boldface and separated by the ">" signs. For example,choose File > Create > Folder .
5. Keyboard Operation Convention
Description
Key
Press the key.For example,press Enter and press Tab.
Key1+Key2
Press the keys concurrently.For example,pressing Ctrl+Alt+A means the three keys should be pressed concurrently.
Key1,Key2
Press the keys in turn.For example,pressing Alt,A means the two keys should be pressed in turn.
6. Mouse Operation
4
Action
Description
Click
Select and release the primary mouse button without moving the pointer.
Double-click
Press the primary mouse button twice continuously and quickly without moving the pointer.
Drag
Press and hold the primary mouse button and move the pointer to a certain position.
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BTS3900A GSM Product Description
1 System Structure of the BTS3900A
1
System Structure of the BTS3900A
This describes the BTS3900A. It consists of the BBU3900, the DRFU module, the power distribution box, and RF cabinet. The BBU3900 is installed in the power distribution box. The DRFU module is installed in the RF cabinet. Figure 1-1 shows the BTS3900A system. Figure 1-1 BTS3900A system architecture
BBU Power cabinet
RF cabinet
DRFU
The BTS3900A consists of the following modules:
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BTS3900A GSM Product Description
1 System Structure of the BTS3900A
1-2
l
The BBU3900 is used for baseband processing and enables interaction between the BTS and the BSC.
l
The DRFU, the double-transceiver filter unit, performs modulation and demodulation between baseband signals and RF signals, processes data, and combines and divides signals.
l
The power distribution box and RF cabinet provides space for BBU3900 and DRFU and the functions of power distribution, heat dissipation, and surge protection.
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BTS3900A GSM Product Description
2 Overview of the BTS3900A
2
Overview of the BTS3900A
About This Chapter This describes the physical structure, logical structure, and software structure of the BTS3900A. 2.1 Marketing Orientation of the BTS3900A This describes the BTS3900A, an outdoor macro base station developed by Huawei. The BTS3900A mainly consists of the BBU and the DRFUs. Compared with traditional BTSs, the BTS3900A features simpler structure and higher integration. 2.2 Structure of the BTS3900A Cabinet The BTS3900A cabinet consists of the RF cabinet and the APM30 power cabinet. The RF cabinet is categorized into two types: 3RFU cabinet and 6RFU cabinet. For the BTS3900A, the APM30 battery cabinet and APM30 transmission cabinet are optional. The battery cabinet provides longtime backup power, and the transmission cabinet can accommodate the transmission equipment of the user. 2.3 Logical Structure of the BTS3900A This describes the logical structure of the BTS3900A. It mainly consists of the BBU and DRFUs. The logical structure of the BTS3900A consists of the RF subsystem, control subsystem, power subsystem, and antenna subsystem. 2.4 Software Structure of the BTS The BTS software consists of the platform software, signaling protocol software, OM software, and data center. The latter three are application software, and the platform software provides support for the application software.
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BTS3900A GSM Product Description
2 Overview of the BTS3900A
2.1 Marketing Orientation of the BTS3900A This describes the BTS3900A, an outdoor macro base station developed by Huawei. The BTS3900A mainly consists of the BBU and the DRFUs. Compared with traditional BTSs, the BTS3900A features simpler structure and higher integration. The features of the BTS3900A are as follows: l
It is developed on the basis of the unified BTS platform for Huawei Wireless products and enables the smooth evolution from 2G to 3G.
l
It supports the Abis IP/FE interface in hardware and enables Abis over IP through software upgrade if required.
l
It shares the BBU subrack with the DBS3900 to minimize the number of spare parts and to reduce the cost.
l
It can be flexibly installed in a small footprint and can be easily maintained with low cost.
l
It supports multiple frequency bands, such as PGSM900, EGSM900, and DCS1800.
l
It supports transmit diversity and PBT.
l
It supports two-antenna or four-antenna receive diversity to improve the uplink coverage.
l
It supports the GPRS and the EGPRS.
l
It supports omnidirectional cells and directional cells.
l
It supports the hierarchical cell, concentric cell, and micro cell.
l
It supports multiple network topologies, such as star networking, tree networking, chain networking, ring networking, and hybrid networking.
l
It supports the A5/3, A5/2, and A5/1 encryption and decryption algorithms.
l
It supports the cell broadcast SMS and point-to-point SMS.
l
It supports synchronization with the BTS3012.
l
A single cabinet supports up to 12 TRXs with the maximum cell configuration of S4/4/4.
l
Multiple cabinets at a site support up to 72 TRXs with the maximum cell configuration of S24/24/24.
2.2 Structure of the BTS3900A Cabinet The BTS3900A cabinet consists of the RF cabinet and the APM30 power cabinet. The RF cabinet is categorized into two types: 3RFU cabinet and 6RFU cabinet. For the BTS3900A, the APM30 battery cabinet and APM30 transmission cabinet are optional. The battery cabinet provides longtime backup power, and the transmission cabinet can accommodate the transmission equipment of the user. The components of the BTS3900A include the DRFU, BBU, DCDU-02, FMUA, FAN unit, and GATM, among which the GATM is optional. Figure 2-1 shows the typical configuration of a BTS3900A cabinet that consists of a 6RFU cabinet and an APM30 power cabinet.
2-2
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BTS3900A GSM Product Description
2 Overview of the BTS3900A
Figure 2-1 Typical configuration of a BTS3900A cabinet (1)
(1) 6RFU cabinet
(2) DRFU module
(3) FAN unit
(4) FMUA module
(5) DCDU-02 module
(6) GATM module
(7) BBU
(8) PDU
(9) Power subrack (AC/DC)
(10) APM30 power cabinet
-
-
Figure 2-2 shows the typical configuration of a BTS3900A cabinet that consists of a 3RFU cabinet and an APM30 power cabinet.
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BTS3900A GSM Product Description
2 Overview of the BTS3900A
Figure 2-2 Typical configuration of a BTS3900A cabinet (2)
(1) Battery
(2) 3RFU cabinet
(3) DRFU module
(4) FAN unit
(5) FMUA module
(6) DCDU-02 module
(7) GATM module
(8) BBU
(9) PDU
(10) Power subrack (AC/DC)
(11) APM30 power cabinet
-
Figure 2-3 shows the typical configuration of a BTS3900A cabinet that consists of a 3RFU cabinet, a 6RFU cabinet, and an APM30 power cabinet.
2-4
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BTS3900A GSM Product Description
2 Overview of the BTS3900A
Figure 2-3 Typical configuration of a BTS3900A cabinet (3) 10 9
8 7 6
5 4 11
3
2 12 1
(1) 6RFU cabinet
(2) DRFU module
(3) FAN unit
(4) FMUA module
(5) DCDU-02 module
(6) GATM module
(7) BBU
(8) PDU
(9) Power subrack (AC/DC)
(10) APM30 power cabinet
(11) Battery
(12) 3RFU cabinet
Figure 2-4 shows the typical configuration of a BTS3900A cabinet that consists of a 6RFU cabinet, an APM30 power cabinet, an APM30 transmission cabinet, and an APM30 battery cabinet.
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BTS3900A GSM Product Description
2 Overview of the BTS3900A
Figure 2-4 Typical configuration of a BTS3900A cabinet (4)
(1) 6RFU cabinet
(2) DRFU module
(3) FAN unit
(4) FMUA module
(5) DCDU-02 module
(6) GATM module
(7) BBU
(8) PDU
(9) Power subrack (AC/DC)
(10) APM30 power cabinet
(11) DCDU-03A module
(12) Transmission unit
(13) APM30 transmission cabinet
(14) Battery
(15) APM30 battery cabinet
NOTE
For details about the configurations of the APM30 power cabinet, APM30 transmission cabinet, and APM30 power cabinet, see the APM30 User Guide.
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2 Overview of the BTS3900A
2.3 Logical Structure of the BTS3900A This describes the logical structure of the BTS3900A. It mainly consists of the BBU and DRFUs. The logical structure of the BTS3900A consists of the RF subsystem, control subsystem, power subsystem, and antenna subsystem. Figure 2-5 shows the logical structure of the BTS3900A. Figure 2-5 Logical Structure of the BTS3900A
CPRI
RF signals
DRFU
MS Bias-Tee
TMA
…
BSC
E1
GATM
BBU
…
CPRI Optical transmission device
E1
Control subsystem
DRFU
RF signals
Antenna subsystem
RF subsystem
DCDU-03A
TMA
Bias-Tee
220V AC
PDU
DCDU-02
220V AC
-48V DC
Power subrack (AC/DC)
Battery Power subsystem
The logical subsystems of the BTS3900A are as follows: l
RF subsystem whose functions are implemented by the DRFU
l
Control subsystem whose functions are implemented by the BBU
l
Power subsystem whose functions are implemented by the following modules:
l
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–
PDU
–
Power Subrack (AC/DC)
–
DCDU-02
–
DCDU-03A
–
Battery
Antenna subsystem whose functions are implemented by the following modules: Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd
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GATM
–
TMA
–
Antennas
2.4 Software Structure of the BTS The BTS software consists of the platform software, signaling protocol software, OM software, and data center. The latter three are application software, and the platform software provides support for the application software. Figure 2-6 shows the software structure of the BTS. Figure 2-6 Software structure of the BTS Signaling protocol software
OM software
Data center
Platform software
Platform Software The platform software provides support for the signaling protocol software, OM software, and data center. The functions of the platform software are as follows: l
Timing management
l
Task management
l
Memory management
l
Module management
l
Managing the loading and running of the application software
l
Providing the message forwarding mechanism between modules
l
Tracing massages between modules to facilitate troubleshooting
Signaling Protocol Software The functions of the signaling protocol software are as follows:
2-8
l
Processing the radio network layer protocol
l
Processing the transport network layer protocol, which performs transport data configuration, ALCAP processing, and SAAL processing Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd
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Managing the internal logical resources (such as cells and channels) of the BTS and the mapping between physical resources and logical resources
OM Software The OM software works together with the maintenance terminals such as the LMT to maintain the BTS. The functions of the OM software are as follows: l
Equipment management
l
Data configuration
l
Performance management
l
Commissioning management
l
Alarm management
l
Software management
l
Tracing management
l
Security management
l
Backup management
l
Log management
Data Center The data center stores the configuration data of all the modules.
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3
3 Power Distribution Modes of the BTS3900A
Power Distribution Modes of the BTS3900A The BTS3900A allows the 220 V AC input. Figure 3-1 shows the power distribution of the BTS3900A. Figure 3-1 Power distribution of the BTS3900A BTS3036A power system
220V AC -48V DC
Power subrack (AC/DC)
Battery
FMUA DCDU-02
220V AC PDU
DRFU0-2 AFMU BBU GATM
DCDU-02
DRFU3-5
DCDU-03A
-48V DC
The description of the power distribution is as follows:
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3 Power Distribution Modes of the BTS3900A
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BTS3900A GSM Product Description
l
When the external 220 V AC is used, the PDU leads the 220 V AC into the PSU (AC/DC) in the power subrack (AC/DC). The PSU converts the 220 V AC to -48 V DC, and then transmits the converted DC back to the PDU.
l
The PDU distributes the -48 V DC. Part of the -48 V DC is directly distributed to certain modules. Part of the -48 V DC is distributed to the DCDU-02. The DCDU-02 then distributes the -48 V DC to certain modules.
l
When the APM30 transmission cabinet is configured, the PDU leads the -48 V DC to the DCDU-03A in the transmission cabinet. The DCDU-03A then distributes the -48 V DC to certain modules.
l
The power subrack (AC/DC) performs the charging and discharging of the batteries.
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BTS3900A GSM Product Description
4 Monitoring System of the BTS3900A
4
Monitoring System of the BTS3900A
This describes the monitoring system of the BTS3900A. The monitoring system monitors the power, fans, and environment.
Description of Monitoring Ports Figure 4-1 shows the monitoring ports of the BBU. Figure 4-1 Monitoring ports of the BBU Monitoring signal bus 0 Monitoring signal bus 1 Alarm signal 0 to 3 Alarm signal 4 to 7 UELP TX0
INSIDE
CPRI0 1 RX0 TX1 RX1
TX2
2
CPR12 3 RX2 TX3
RX3 TX4
4
EXT-ALM1
EX T-ALM0 MON1
MON0
EXT-ALM1
EXT-ALM0 MON1
MON0
CPR14 5 RX4 TX5 RX5 LIU0 LIU1
OUTSIDE
LIU2 LIU3 CPR11
TX
GTMU ETH
FE0
RX
FE1
CPR13
CPR15 RUN ALM ACT
USBTEST
E1/T1
RST PWR
RUN
Alarm signal 12 to 15 Alarm signal 8 to 11 Monitoring signal bus 1 Monitoring signal bus 0 l
The BBU can provides up to two RS485 bus ports and 16 Boolean inputs.
l
The modules on the RS485 bus 0 cannot substitute those on the RS485 bus 1.
l
If two MPUs with the same DIP switch setting are configured, they cannot be installed on the same bus.
Components of the Monitoring System Figure 4-2 shows the components of the BTS3900A system.
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4-1
BTS3900A GSM Product Description
4 Monitoring System of the BTS3900A
Figure 4-2 Structure of the monitoring system BBU RS485 bus0
DCDU-02 1 GATM2
DCDU-02 2
FMUA2 ……
FMUA1 FAN1
FAN2
BSC RS485 bus1 EMUA
PMU
AFMU1
Door sensor of the power cabinet
GATM1
Door sensor of the battery cabinet
Boolean0-15 DCDU-03A
AFMU2
Door sensor of the transmission cabinet
User interface
NOTE
bus0 is the RS485 bus 0; bus1 is the RS485 bus 1.
Table 4-1 describes the monitoring signals of the BTS3900A. Table 4-1 Monitoring signals of the BTS3900A Unit
Address
FMUA (mandatory)
bus0
GATM2 (optional)
bus0
PMU (mandatory)
bus1
AFMU (mandatory)
bus1
GATM1 (optional)
bus1
FMUA (optional)
bus1
Functions of the Monitoring System Table 4-2 shows the components of the monitoring system. Table 4-2 Functions of the Monitoring System Unit
Control
FAN
l
Fan failure monitoring
l
Adjust the fan speed
l
Temperature and fan speed monitoring
GATM 4-2
Reports the RET control alarm signals. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd
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BTS3900A GSM Product Description
4 Monitoring System of the BTS3900A
Unit
Control
EMUA
l
Communicates with the central processing unit through the two RS485 ports
l
Input voltage monitoring
l
Provides independent 12 V DC/24 V DC temperature and humidity sensor ports.
l
Provides Boolean input signal monitoring ports, and connects to the Boolean monitoring signals in dry contact mode or OC mode.
l
Provides six external Boolean output control ports in relay node mode.
l
Communicates with the central processing unit through the RS232/RS422 serial port.
l
Manages the power system and charging and discharging of batteries.
l
It reports water alarms, smokes alarms, door control alarms, standby Boolean alarms, ambient humidity and temperature, battery temperature, and standby analog values.
l
Power distribution monitoring and alarm reporting
PMU
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DCDU-02
Provides the monitoring of surge protection failure
FMUA
l
Collecting environment alarm information in the cabinet. The environment alarm is classified into temperature alarm, humidity alarm, smoke alarm, water immersion alarm, and door status alarm.
l
Collects surge protection alarm information of the DC power distribution unit.
l
Monitors the operating status of fans. The fan speed can be adjusted based on the temperature or adjusted by the central processing unit.
l
Stops the rotation of the fans when the ambient temperature is low.
l
Temperature monitoring and reporting
l
RS485 port cascading and extension
l
The FMUAs can be cascaded.
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4-3
BTS3900A GSM Product Description
5
5 Reference Clocks of the BTS3900/BTS3900A
Reference Clocks of the BTS3900/BTS3900A The BTS3900/BTS3900A supports three types of reference clocks: line clock, BITS clock, and free-run clock.
Line Clock The BBU3900 directly extracts clock signals from the E1/T1 interface. Then, the BBU exports the precise 2 MHz and 8 kHz clocks after frequency dividing, phase locking, and phase adjusting. The 2 MHz and 8 kHz clocks are used for frame synchronization and bit synchronization in the BTS3900/BTS3900A.
BITS Clock The BBU3900 supports the BITS clock mode by providing a port for the 2.048 MHz BITS clock.
Free-Run Clock When the external reference clocks are unavailable, the oven controlled crystal oscillator (OCXO) on the GTMU of the BBU3900 provides the 13 MHz clock to ensure the normal operation of the BTS.
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5-1
BTS3900A GSM Product Description
6 Signal Flow of the BTS3900/BTS3900A
6
Signal Flow of the BTS3900/BTS3900A
The signal flow of the BTS3900/BTS3900A consists of the traffic signal flow and the signaling flow of the BTS. The BTS3900/BTS3900A signal flow is classified into the DL traffic signal flow, UL traffic signal flow, and signaling flow.
DL Traffic Signal Flow The DL traffic signal flow is transmitted from the BSC to the MS through the BTS3900/ BTS3900A. In the BTS3900/BTS3900A, the BBU and DRFUs work together to process the DL traffic signals. Figure 6-1 shows the DL traffic signal flow of the BTS3900/BTS3900A. Figure 6-1 DL traffic signal flow Downlink traffic signal flow
1 E1
BBU
DBUS CBUS FHBUS 2 CPRI
3 RF signals
DRFU
3 RF signals
MS
…
BSC
DRFU
DRFU
3 RF signals
The DL traffic signal flow is as follows: 1.
The BSC sends E1 signals to the BBU through E1 or optical cables.
2.
After receiving the E1 signals, the BBU processes the E1 signals as follows: (1) Extracts clock signals from the E1 signals (2) Configures the BTS system based on the data configuration on the OML (3) Encapsulates the E1 data in the format of the CPRI frame, and then transmits the data to the DRFU through the CPRI signal cable
3. Issue 03 (2008-07-15)
After receiving the signals, the DRFU processes the signals as follows: Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd
6-1
BTS3900A GSM Product Description
6 Signal Flow of the BTS3900/BTS3900A
(1) Decapsulates the high-speed CPRI frames to obtain the baseband signals (2) Transmits the baseband signals to the relevant operation units for encapsulation and interleaving (3) Converts the digital signals into the analog signals and modulates the analog signals into RF signals (4) Combines or divides the RF signals based on its own configuration (5) Transmits the combined or divided signals to the antenna subsystem
UL Traffic Signal Flow Opposite to the DL traffic signal flow, the UL traffic signal flow is transmitted from the MS to the BSC through the BTS3900/BTS3900A. In the BTS3900/BTS3900A, the BBU and DRFUs work together to process the UL traffic signals. Figure 6-2 shows the UL traffic signal flow. Figure 6-2 UL traffic signal flow Uplink traffic signal flow
1 E1
BBU
DBUS CBUS FHBUS 2 CPRI
3 RF signals
DRFU
3 RF signals
MS
…
BSC
DRFU
DRFU
3 RF signals
The UL traffic signal flow is as follows: 1.
The antenna receives the signals sent from the MS. If the TMA is configured, the received signals are amplified by the TMA and then transmitted to the DRFU through the feeder.
2.
After receiving the UL signals, the DRFU processes the signals as follows: (1) Divides the UL signals received from the antenna, Rx1 in, or Rx2 in (2) Converts the divided analog signals into the digital signals to obtain the baseband signals (3) Transmits the baseband signals to the relevant operation units for decryption and deinterleaving (4) Encapsulates the processed data in the format of the CPRI frame, and then transmits the data to the BBU through the CPRI signal cable
3.
After receiving the signals, the BBU processes the signals as follows: (1) Decapsulates the high-speed CPRI frames to obtain the baseband signals (2) Encapsulates the baseband signals in the format of the E1 frame, and then transmits the signals to the BSC through the E1 cable or the optical cable
6-2
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BTS3900A GSM Product Description
6 Signal Flow of the BTS3900/BTS3900A
Signaling Flow This describes the BTS3900/BTS3900A signaling flow on the Abis interface. The BBU serves as the control unit and works with DRFU to process the signaling. Figure 6-3 shows the signaling flow. Figure 6-3 Signaling flow Signaling flow DRFU
1 E1
BBU
DBUS CBUS FHBUS 2 CPRI
DRFU
…
BSC
DRFU
The signaling flow is as follows: 1.
The signaling data received from the BSC is transmitted to the BBU through the Abis interface.
2.
The BBU encapsulates the signaling data in the format of the CPRI frame, and then transmits the signaling data to the DRFU through the CPRI signal cable.
3.
The DRFU decapsulates the CPRI signals into the baseband signals, transmits the baseband signals to the relevant operation units for processing.
4.
The BBU encapsulates the data of its own status in the format of the CPRI frame, and then transmits the data to the DRFU through the CPRI signal cable.
5.
The BBU decapsulates the received CPRI signals to obtain the baseband signals.
6.
The BBU obtains the status of the BTS by analyzing the baseband signals. Then, the BBU transmits the information on the BTS status to the BSC through the Abis interface.
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6-3
BTS3900A GSM Product Description
7 Topologies of the BTS
7
Topologies of the BTS
The BTS supports the star, chain, tree, and ring topologies. The BBU and DRFUs support multiple network topologies such as star, chain, and ring topologies. In practice, these topologies can be combined. Optimum utilization of the topologies can improve the quality of service and save the investment on the transmission equipment.
Network Topology Figure 7-1 shows the star topology of the BTS. Figure 7-1 Star topology of the BTS BSC
BTS
BTS BTS
Figure 7-2 shows the chain topology of the BTS. Figure 7-2 Chain topology of the BTS
BSC
BTS
BTS
BTS
Figure 7-3 shows the tree topology of the BTS. Issue 03 (2008-07-15)
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7-1
BTS3900A GSM Product Description
7 Topologies of the BTS
Figure 7-3 Tree topology of the BTS
BTS
BTS
BTS
BSC
BTS
Figure 7-4 shows the ring topology of the BTS. Figure 7-4 Ring topology of the BTS A
B
C
BTS0 BSC
BTS1
BTS2
D
Comparison of Network Topologies Table 7-1 describes the comparison of different network topologies.
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BTS3900A GSM Product Description
7 Topologies of the BTS
Table 7-1 Comparison of Network Topologies Networking Mode
Application Scenario
Advantage
Star topology
Applies to common areas, especially densely populated areas, such as cities.
l
Simple networking
l
Easy project implementation
l
Convenient maintenance
l
Flexible capacity expansion
l
High network reliability
Chain topology
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Applies to sparsely populated areas in strip-like terrain, such as areas along highways and railway tracks.
Reduces costs in transmission equipment, construction, and transmission link lease.
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Limitations Compared with other topologies, the star topology requires more transmission cables.
l
As signals pass through many nodes, the transmission reliability in the chain topology is reduced.
l
The faults in the current-level BTSs may affect the lower-level BTSs.
l
The number of levels in a chain network should not exceed five.
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BTS3900A GSM Product Description
7 Topologies of the BTS
7-4
Networking Mode
Application Scenario
Advantage
Limitations
Tree topology
Applies to areas where network structures, site distribution, and subscriber distribution are complicated, for example, an area where large-scale coverage overlaps hot spot or smallscale coverage.
Requires fewer transmission cables compared with the star topology.
l
As signals pass through many nodes, the transmission reliability is reduced. This makes it difficult for maintenance and engineering.
l
The faults in the current-level BTSs may affect the lower-level BTSs.
l
Capacity expansion is difficult.
l
The number of levels in the tree should not exceed five.
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BTS3900A GSM Product Description
7 Topologies of the BTS
Networking Mode
Application Scenario
Advantage
Limitations
Ring topology
Applies to common scenarios. Due to its strong self-healing capability, the ring topology is preferred if permitted by the routing.
If there is a breaking point in the ring, the ring breaks into two chains at the breaking point automatically. In this way, the BTSs preceding and following the breaking point can work normally despite the breaking point; thus improving the robustness of the system. For example, BTS0, BTS1, and BTS2 are sequentially connected to form a ring. When B fails, the BTS topology preceding B remains unchanged, and the BTSs following B form a chain (anticlockwise), as shown in Figure 7-5.
In the ring topology, there is always a link section that does not transfer data.
Figure 7-5 Regroupment for disconnection in the ring topology Clockwise A BTS0 B
BSC D
C BTS2
BTS1 Anticlockwise
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7-5
BTS3900A GSM Product Description
8
8 Configuration of the BTS3900/BTS3900A
Configuration of the BTS3900/BTS3900A
About This Chapter This describes the configuration principles of the BTS3900/BTS3900A, RF cable connections, CPRI cable connections, and typical configurations of the DRFU. 8.1 Configuration Principles of the BTS3900/BTS3900A The BTS3900/BTS3900A uses DRFU transceiver module and DRFU built-in duplexer. A single cabinet provides up to 12 TRXs with the maximum cell configuration of S4/4/4 and supports the dual-band application. In the BTS3900/BTS3900A, the antenna subsystem, DRFUs, and BBU need to be configured. 8.2 RF Signal Cable Connections of the DRFU One end of the RF jumper is connected to the RF port on the DRFU and the other end is connected to the feeder. You can determine the appropriate RF ports based on the actual configuration modes. 8.3 Topology of DRFUs Connected by CPRI Cables The DRFUs support various network topologies: star, chain, and ring. 8.4 Typical Configuration of the BTS3900/BTS3900A This lists the number of components required for the cell configuration of S1/1/1, S2/2/2, S4/4/4, S6/6/6, S1/1/1 + S3/3/3, S2/2/2 + S2/2/2, and S4/4/4 + S4/4/4.
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8-1
8 Configuration of the BTS3900/BTS3900A
BTS3900A GSM Product Description
8.1 Configuration Principles of the BTS3900/BTS3900A The BTS3900/BTS3900A uses DRFU transceiver module and DRFU built-in duplexer. A single cabinet provides up to 12 TRXs with the maximum cell configuration of S4/4/4 and supports the dual-band application. In the BTS3900/BTS3900A, the antenna subsystem, DRFUs, and BBU need to be configured.
Basic Configuration Principles l
Smooth upgrade of configuration. If multiple types of hardware configurations meet the requirements for configuring the parameters in network planning, the configuration mode that implements the smooth upgrade is preferred.
l
The BTS3900/BTS3900A solution is recommended in S4/4/4 cell configuration or lower configurations. When multiple antennas are permitted, the BTS3900/BTS3900A solution can be applied in S8/8/8 and S4/4/4+S4/4/4 dual-band cell configurations.
l
Wide coverage. The DRFU supports wide coverage. The DRFU can work in PBT, transmit diversity, or 4-way receive diversity mode in configurations lower than S2.
Antenna Configuration Principles l
One antenna can serve up to two DRFUs to support the S4/4/4 configuration.
l
By default, the receive diversity is adopted in the GSM. That is, two feeder (two single antennas or one dual-polarized antenna) must be configured in a cell.
l
When one internal combination is allowed, the cell configuration of S4 and lower configurations use a single antenna, the configurations of S5 to S8 use a double antenna, and the configurations of S8 to S12 use a triple antenna.
l
Each sector of the BTS must be configured with the minimum number of antennas.
l
For the 2-antenna receive diversity, each sector has two antenna channels; for the 4-antenna receive diversity, each sector has four antenna channels.
RF Configuration Principles Table 8-1 describes the RF configuration principles of the BTS3900/BTS3900A.
8-2
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BTS3900A GSM Product Description
8 Configuration of the BTS3900/BTS3900A
Table 8-1 RF configuration principles of the BTS3900/BTS3900A Principle
Description
Configuration principles of the DRFU ports
l
ANT1 and ANT2 are the TX ports of the duplexer. They are connected to jumpers.
l
Rx1 in, Rx1 out, Rx2 in, and Rx2 out are used for the interconnection between the DRFU modules. When the two TRXs provided by the DRFU belong to the same cell, both Rx1 in and Rx2 in can be the input ports for receive diversity of the two TRXs. When the two TRXs provided by the DRFU belong to different cells, Rx1 in is the input port for RX diversity of TRX 1; Rx2 in is the input port for receive diversity of TRX 2.
l
CPRI_0 and CPRI_1 are the ports for high speed signal cables. They are connected to CPRI ports on the BBU.
l
Star topology is adopted between the BBU and DRFUs. The DRFUs and the high-speed interfaces on the BBU have a one-toone mapping relationship. That is, if DRFU slot 1 is idle, CPRI port 1 on the BBU is also idle.
l
A single cabinet supports the maximum cell configuration of S4/4/4.
Configuration principles of a single cabinet
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Example In the S3/3 configuration, three DRFUs need to be configured. The TRXs provided by the middle DRFU belong to different cells. Then, the Rx1 in port on the middle DRFU is the input port, which belongs to the first cell, for receive diversity of TRX 1. The input port for RX main diversity of TRX 2 is ANT1. The Rx2 in port is the input port, which belongs to the second cell, for receive diversity of TRX 2. The input port for RX main diversity of TRX 2 is ANT2.
None
8-3
BTS3900A GSM Product Description
8 Configuration of the BTS3900/BTS3900A
Principle
Description
Configuration principles of multiple cabinets
l
When star and ring topologies are adopted between the BBU and DRFUs, three levels of DRFUs in a ring can be connected to one BBU. That is, one BBU supports 3 x 3 = 9 DRFUs.
l
When star and chain topologies are adopted between the BBU and DRFUs, three levels of DRFUs on a chain can be connected to one BBU. That is, one BBU supports 6 x 3 = 18 DRFUs.
l
The non-combination configuration is recommended for the DRFU to avoid the power loss in combination and to reduce the power consumption of the BTS.
l
If combination is required, the cavity combiner must be configured outside the DRFU and one combination is recommended.
l
A single DRFU does not support the S1/1 application; however, three DRFUs support the S3/3 application.
l
When the DRFU works in transmit PBT, transmit diversity, or 4-way receive diversity mode, a DRFU provides only one TRX. Therefore, the actual configuration does not involve the mode of configuring two TRXs in one sector.
Non-combination in the transmit channel
Configuring two TRXs in one sector
8-4
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Example None
None
For example, for a site in S5/4/7 cell configuration, nine DRFUs are installed meeting the requirements of S6/4/8 cell configuration but data is still configured in S5/4/7 cell configuration.
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BTS3900A GSM Product Description
8 Configuration of the BTS3900/BTS3900A
Principle
Description
Number of DRFUs
l
l
TRX allocation in double antenna mode
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When the number of TRXs of the site is less than 12, an odd number of TRXs can be configured for a cell. Number of DRFUs = round up [(Number of TRXs + Number of S1 cells) ÷ 2]
Example l
S3/3/3: Number of DRFUs = round up (9 ÷ 2) = 5; S1/2/3: Number of DRFUs = round up [(6 + 1) ÷ 2] = 4.
l
After two TRXs are configured in one sector, the S5/5/5 configuration is S6/6/6. Number of DRFUs = (6 + 6 + 6) ÷ 2 = 9.
l
In S3/5/4, S5 can be divided into S3 + S2. Then, the cell configuration is S3/(3/2)/ 4.
l
In S2/5/5, the first S5 is divided into S2 + S3; the second S5 is divided into S3 + S2. Then, the cell configuration is S2/(2/3)/ (3/2).
When the number of TRXs of the site is greater than 12, two TRXs should be configured for a cell. Number of DRFUs = round up (Number of TRXs after two TRXs are configured in one sector ÷ 2)
After TRX allocation, the cells with the odd number of TRXs are adjacent cells. l
S5 = S3 + S2 or S5 = S2 + S3
l
S6 = S4 + S2 or S6 = S3 + S3
l
S7 = S4 + S3 or S7 = S3 + S4
l
S8 = S4 + S4
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8-5
BTS3900A GSM Product Description
8 Configuration of the BTS3900/BTS3900A
Principle
Description
Configuring double TRXs in a site
l
If the number of DRFUs is less than or equal to 6 in a double-TRX site, the two TRXs are configured in the same cabinet. If the number of DRFUs of the two bands is less than 3, the 900 MHz DRFUs are installed in the 3 slots on the left, and the 1800 MHz DRFUs are installed in the 3 slots on the right.
l
When two RF cabinets are configured and the number of DRFUs of each band is less than 6, the 900 MHz DRFUs are installed in the first cabinet and the 1800 MHz DRFUs are installed in the second cabinet. The DRFUs are installed in the slots according to the typical S4/4/4 configuration. When two RF cabinets are configured and the number of DRFUs of one band is greater than 6, the band with fewer DRFUs shares the cabinet with the other band. Mixed configuration of DRFUs are not allowed.
Example None
NOTE
In the mode of configuring two TRXs in one sector, a DRFU belongs to only one sector.
Configuration Principles of the BBU
8-6
l
One BBU provides six CPRI ports. In the chain topology, a single BBU can support up to 36 TRXs.
l
Figure 8-1 shows the BBU slots.
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BTS3900A GSM Product Description
8 Configuration of the BTS3900/BTS3900A
Figure 8-1 Slots of the BBU FAN
l
0 1
4
2
6
3
7
UPEU/UEIU
5
UPEU
Table 8-2 describes the RF configuration principles of the BBU. Table 8-2 Configuration principles of BBU boards Board or Module
Description
BSBC
1 pcs must be configured.
UBFA
1 pcs must be configured.
UPEU
l
1 pcs must be configured.
l
1 pcs can be configured when the backup power is required. The UPEU, however, cannot be configured with the UEIU at the same time.
l
1 pcs must be configured when three or more than three BTS3900 cabinets are configured.
l
In the outdoor application, 1 pcs must be configured when two or more than two APM30 power cabinets are configured.
l
1 pcs must be configured.
l
The GTMU occupies slot 5 and slot 6.
l
Not required in the BTS3900
l
1 pcs must be configured in the BTS3900A. The UELP occupies slot 0.
UEIU
GTMU
UELP
8.2 RF Signal Cable Connections of the DRFU One end of the RF jumper is connected to the RF port on the DRFU and the other end is connected to the feeder. You can determine the appropriate RF ports based on the actual configuration modes.
RF Cable Connections of the DRFU l
The transmit mode and antenna mode described in the following list are set on the BSC side.
l
The RF cables differ from each other in colors. Figure 8-2 shows the mapping between the RF signal cables and their colors.
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8-7
8 Configuration of the BTS3900/BTS3900A
BTS3900A GSM Product Description
Figure 8-2 Mapping between the RF signal cables and their colors Feeder jumper CPRI signal cable RF jumper between the cascaded DRFUs
8-8
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BTS3900A GSM Product Description
8 Configuration of the BTS3900/BTS3900A
S1 Without Transmit Diversity, S1 with Transmit Diversity, and S2 Without Transmit Diversity The S1 without transmit diversity, S1 with transmit diversity, and S2 without transmit diversity use the configuration of one DRFU and one dual-polarized antenna. Table 8-3 describes the related configurations. Table 8-3 Configuration (1) Typical Configuration Mode
Transmit Mode
Antenna Mode
Cable Configuration
S1 without transmit diversity
Transmit independency or combining
Double Antenna
l
S1 with transmit diversity
Transmit diversity
Double Antenna
S2 without transmit diversity
Transmit independency or combining
Double Antenna
l
One DRFU module One dualpolarized antenna
Figure 8-3 shows the cable connections. Figure 8-3 Connections of RF cables for S1 (without transmit diversity/with transmit diversity)/ S2 (without transmit diversity)
Antenna
UELP INSIDE
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OUTSIDE
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8-9
BTS3900A GSM Product Description
8 Configuration of the BTS3900/BTS3900A
S2 with PBT, S3 Without Transmit Diversity, and S4 Without Transmit Diversity The S2 with PBT, S3 without transmit diversity, and S4 without transmit diversity use the configuration of two DRFUs and one dual-polarized antenna. Table 8-4 describes the related configurations. Table 8-4 Configuration (2) Typical Configuration Mode
Transmit Mode
Antenna Mode
Cable Configuration
S2 with PBT
PBT
Single Antenna Double Receiver
l
Two DRFUs
l
One dualpolarized antenna
S3 without transmit diversity
Transmit independency or combining
Single Antenna Double Receiver
S4 without transmit diversity
Transmit independency or combining
Single Antenna Double Receiver
Figure 8-4 shows the cable connections. Figure 8-4 Connections of RF cables for S2 (PBT)/S3 (without transmit diversity)/S4 (without transmit diversity)
Antenna
UELP INSIDE
8-10
OUTSIDE
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BTS3900A GSM Product Description
8 Configuration of the BTS3900/BTS3900A
S2 (4-Way Receive Diversity) The S2 with 4-way receive diversity uses the configuration of two DRFUs and two dualpolarized antennas. The related configuration is as follows: l
Receive mode: 4-Way Receive Diversity
l
Set the antenna mode to Double Antenna 4-Way Receiver.
Figure 8-5 shows the cable connections. Figure 8-5 Connections of RF signal cables for S2 (4-way receive diversity)
Antenna
Antenna
UELP INSIDE
OUTSIDE
S2 with Transmit Diversity and S4 with Transmit Independency The S2 with transmit diversity and S4 with transmit independency use the configuration of two DRFUs and two dual-polarized antennas. Table 8-5 describes the related configurations. Table 8-5 Configuration (3) Typical Configuration Mode
Transmit Mode
Antenna Mode
Cable Configuration
S2 (with transmit diversity)
Transmit diversity
Double Antenna
l
Two DRFUs
l
S4 with transmit independency
Transmit independency or combining
Two dualpolarized antennas
Double Antenna
Figure 8-6 shows the cable connections. Issue 03 (2008-07-15)
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8-11
BTS3900A GSM Product Description
8 Configuration of the BTS3900/BTS3900A
Figure 8-6 Connections of RF cables for S2 (transmit diversity)/S4 (transmit independency)
Antenna
Antenna
UELP INSIDE
OUTSIDE
S5 Without Transmit Diversity and S6 Without Transmit Diversity The S5 without transmit diversity and S6 without transmit diversity use the configuration of three DRFUs and two dual-polarized antennas. Table 8-6 describes the related configurations. Table 8-6 Configuration (4) Typical Configuration Mode
Transmit Mode
Antenna Mode
S5 without transmit diversity
Transmit independency or combining
l
S6 without transmit diversity
8-12
Transmit independency or combining
DRFU0: Single Antenna Double Receiver
l
DRFU1: Single Antenna Double Receiver
l
DRFU2: Double Antenna
l
DRFU0: Single Antenna Double Receiver
l
DRFU1: Single Antenna Double Receiver
l
DRFU2: Double Antenna
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Cable Configuration l
Three DRFUs
l
Two dualpolarized antennas
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BTS3900A GSM Product Description
8 Configuration of the BTS3900/BTS3900A
Figure 8-7 shows the cable connections. Figure 8-7 Connections of RF cables for S5 (without transmit diversity)/S6 (without transmit diversity)
Antenna
Antenna
UELP INSIDE
OUTSIDE
S7 Without Transmit Diversity and S8 Without Transmit Diversity The S7 without transmit diversity and S8 without transmit diversity use the configuration of four DRFUs and two dual-polarized antennas. Table 8-7 describes the related configurations. Table 8-7 Configuration (5) Typical Configuration Mode
Transmit Mode
Antenna Mode
Cable Configuration
S7 without transmit diversity
Transmit independency or combining
Single Antenna Double Receiver
l
Four DRFUs
l
S8 without transmit diversity
Transmit independency or combining
Single Antenna Double Receiver
Two dualpolarized antennas
Figure 8-8 shows the cable connections.
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8-13
BTS3900A GSM Product Description
8 Configuration of the BTS3900/BTS3900A
Figure 8-8 Connections of RF cables for S7 (without transmit diversity)/S8 (without transmit diversity)
Antenna
Antenna
UELP INSIDE
OUTSIDE
8.3 Topology of DRFUs Connected by CPRI Cables The DRFUs support various network topologies: star, chain, and ring. Figure 8-9 shows the typical topology of the DRFUs.
8-14
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BTS3900A GSM Product Description
8 Configuration of the BTS3900/BTS3900A
Figure 8-9 Typical topology of the DRFUs
Chain connection
Star connection
Ring connection
UELP INSIDE
OUTSIDE
NOTE
When the chain topology is used, a maximum of three levels of DRFUs can be connected to one BBU.
Table 8-8 describes the three typical topologies of the DRFUs. Table 8-8 Three typical topologies of the DRFUs Topology
Advantage
Star
l
Simple networking
l
Easy project implementation
l
Convenient maintenance
l
Flexible capacity expansion
l
High network reliability
Chain
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Supports the maximum configuration
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Disadvantage Compared with other topologies, the star topology requires more transmission cables.
l
Low network reliability
l
Requires a large quantity of transmission cables
8-15
BTS3900A GSM Product Description
8 Configuration of the BTS3900/BTS3900A
Topology
Advantage
Disadvantage
Ring
High network reliability
Complicated network structure
8.4 Typical Configuration of the BTS3900/BTS3900A This lists the number of components required for the cell configuration of S1/1/1, S2/2/2, S4/4/4, S6/6/6, S1/1/1 + S3/3/3, S2/2/2 + S2/2/2, and S4/4/4 + S4/4/4. Table 8-9 lists the typical configuration of the BTS3900/BTS3900A. Table 8-9 Typical configuration of the BTS3900/BTS3900A Typical Configuratio n
Number of DRFUs
Number of Antennas
Number of Other Components of the BTS3900
S1/1/1
3
3
l
S2/2/2
3
3
S4/4/4
6
S2/2/2 + S2/2/2
6
l
BTS3900 cabinet: 1 FAN: 1
3
l
DCDU-01: 1
6
l
BBU: 1
l
PDU: 1
l
Power subrack (DC/DC): 1 (+24 V DC input) Power subrack (AC/DC): 1 (220 V AC input) GATM: optional
l
BBU: 1
l
GATM: optional
l
RF cabinet: 1
l
FMUA: 1
l
DCDU-02: 2
l
FAN: 2
l
APM30 power cabinet: 1
l
BTS3900 cabinet: 2 FAN: 2
l
l
DCDU-01: 2
Power subrack (AC/DC): 1
l
BBU: 1
l
PDU: 1
l
Power subrack (DC/DC): 1 (+24 V DC input) Power subrack (AC/DC): 1 (220 V AC input) GATM: optional
l
BBU: 1
l
GATM: optional
l
RF cabinet: 2
l
FMUA: 2
l
DCDU-02: 4
l
FAN: 4
l
l
S6/6/6
9
6
S1/1/1 + S3/3/3
8
6
S4/4/4 + S4/4/4
12
6
l
l
l
8-16
Number of Other Components of the BTS3900A
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l
APM30 power cabinet: 1
l
Power subrack (AC/DC): 1
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BTS3900A GSM Product Description
8 Configuration of the BTS3900/BTS3900A NOTE
The number of antennas in a dual-band network is applicable to the configuration that the two bands do not share the antennas. When the two bands share the antennas, the number of antennas in the dual-band network is calculated in the same way as that in the single-band network.
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8-17
BTS3900A GSM Product Description
9 OM System of the BTS
9
OM System of the BTS
About This Chapter The OM system implements the management, monitoring, and maintenance tasks of the BTS3900. It provides various OM modes and multiple maintenance platforms to meet different maintenance requirements. 9.1 OM Modes of the BTS The OM modes of the BTS consist of the Site Maintenance Terminal mode, Local Maintenance Terminal mode, and centralized network management mode. 9.2 OM Functions of the BTS The OM functions of the BTS3900 consist of equipment management, software management, configuration management, service management, performance management, security management, alarm management, and environment monitoring.
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9-1
BTS3900A GSM Product Description
9 OM System of the BTS
9.1 OM Modes of the BTS The OM modes of the BTS consist of the Site Maintenance Terminal mode, Local Maintenance Terminal mode, and centralized network management mode. Figure 9-1 shows the components of the BTS OM system. Figure 9-1 Network structure of the OM system iManager M2000
Site Maintenance Terminal
BTS VLAN BSC
Site Maintenance Terminal
BTS LMT
You can maintain the BTS3900 in the following modes: l
Site Maintenance Terminal mode: The Site Maintenance Terminal is locally connected to the BTS through the Ethernet. You can use the Site Maintenance Terminal to operate and maintain the site, cell, Radio Carrier (RC), Baseband Transceiver (BT), channel, and board. In this mode, only one BTS can be maintained at a time.
l
LMT mode: The LMT is used to maintain the BTS through the OM links on the Abis interface, which is an interface between the BSC and the BTS. The LMT communicates with the BSC through a LAN. You can use the LMT to operate and maintain the site, cell, RC, channel, and board. This mode is used in configuring and modifying the data of the BSC and BTS.
l
Centralized network management mode: The Huawei iManager M2000 is used to maintain the BTS through the OM network. The M2000 can operate and maintain the site, cell, channel, and board. In this mode, multiple BTSs can be maintained at a time.
Table 9-1 lists the functions of the BTS OM system.
9-2
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BTS3900A GSM Product Description
9 OM System of the BTS
Table 9-1 Functions of the BTS OM system Maintenance Object
Maintenance Items for the Site Maintenance Terminal
Maintenance Items for the LMT
Maintenance Items for the M2000
Maintaining sites
Viewing resources
Downloading the BTS software
Managing the reporting of performance data
Performing site Opstart Testing the RF specifications Providing site management rights Forcibly loading software Activating software Resetting a site hierarchically Testing sites Monitoring environment Testing transport performance Querying the ring topology parameters Querying the bar codes Querying alarm delay time Managing the site board parameters Providing the optical transmission board command console Testing the E1 BER Managing the RET antenna
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Configuring the BTS software
Managing NE users
Loading the BTS software
Monitoring NE status
Activating BTS software
Centralizing user management
Querying BTS running status Querying BTS attributes Resetting BTSs hierarchically Browsing the BTS initialization progress
Monitoring NE performance Monitoring NEs in real time Viewing file information of NEs
Querying the software version running on the BTS Testing the BTS Monitoring BTS resources Monitoring environment Viewing BTS logs Testing transport performance Performing the BTS hard reset Providing the optical transmission board command console Querying the temperature in the equipment room Maintaining the ring network
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BTS3900A GSM Product Description
9 OM System of the BTS
Maintenance Object
Maintenance Items for the Site Maintenance Terminal
Maintenance Items for the LMT
Maintenance Items for the M2000
Maintaining cells
Managing cell attributes
Modifying the administrative state
Managing cell extended attributes
Performing force handovers
Viewing the statistics of the cell distribution
Performing cell Opstart Performing cell performance tests Modifying the administrative state of the cell
Sending cell system messages Querying frequency scanning Configuring frequency scanning
Viewing the basic configuration of the cell Viewing the configuration of the CCH of a cell Viewing neighbor cells Monitoring the configuration of an object Collecting the alarms of the monitored object Blocking/unblocking cells
Maintaining BT
Performing BT Opstart
-
-
Re-Initializing a BT Setting the TRX full power emission Modifying the administrative state of the BT Performing BT tests Viewing the channel status
9-4
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BTS3900A GSM Product Description
9 OM System of the BTS
Maintenance Object
Maintenance Items for the Site Maintenance Terminal
Maintenance Items for the LMT
Maintenance Items for the M2000
Maintaining RC
Managing RC attributes
Modifying the administrative state
-
Managing RC extended attributes
Testing the RC performance
Performing RC Opstart Re-Initializing an RC Modifying the administrative state of the RC Viewing the automatic power correction type
Viewing the power mode of the RC Viewing the automatic power correction type Conducting loopback tests on the RC Testing idle timeslots Testing codec modes Resetting RCs Controlling the RC power
Obtaining the power mode of the RC Maintaining channels
Managing channel attributes
Modifying the administrative state
Performing channel Opstart
Monitoring the channel status
Modifying the administrative state of the channel
Monitoring the channel interference band
Performing loopback tests
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Viewing the basic configuration of the cell Viewing the configuration of the CCH of a cell
Performing the loopback test on a channel Testing the channel performance
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9-5
BTS3900A GSM Product Description
9 OM System of the BTS
Maintenance Object
Maintenance Items for the Site Maintenance Terminal
Maintenance Items for the LMT
Maintenance Items for the M2000
Maintaining boards
Configuring racks
Querying the software version running on the board
Viewing NE board reports
Configuring boards Managing boards
Querying the matching of boards
Querying inventory data
Querying bar codes of boards Querying board information Maintaining clocks Resetting boards Performing switchover of boards Querying the power module status Resetting smoke alarms Managing batteries Setting/Querying power module parameters Performing the loopback test on board communication links Querying the cavity state and the cavity frequency Setting the TMA feeder Resetting the auxiliary equipment Maintaining the RET antenna
9.2 OM Functions of the BTS The OM functions of the BTS3900 consist of equipment management, software management, configuration management, service management, performance management, security management, alarm management, and environment monitoring.
Equipment Management Through the OM system, you can query the status of all the components (boards/modules) and all the external devices (power supply/environment monitoring/RET). You can also perform data configuration and status management for some devices. 9-6
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BTS3900A GSM Product Description
9 OM System of the BTS
Software Management l
Provides various functions, such as downloading and activating the BTS software, upgrading patches, and loading and downloading files. The associated tasks involve consistency check on the software and hardware releases, release management, and software upgrade.
l
Allows the BTS software upgrade through the USB port on the BBU without a PC.
Configuration Management l
Checks whether the added, deleted, or changed BTS data is consistent with the actual situation.
l
Supports automatic data backup.
l
Supports dynamic and static data configuration. In dynamic data configuration, the data immediately takes effect after modification; in static data configuration, the modified data takes effect after the BTS is reset.
Service Management l
Supports parameter setting and alarm query for the baseband boards, RET antenna, and environment monitoring device.
l
Supports various OM functions for the RET antenna, such as automatic scanning, data configuration (antenna tilt and TMA gain), status query, and alarm reporting.
l
Supports perfect self-test on hardware installation. The BTS can use the software package saved in the USB disk to perform local upgrade; thus shortening the upgrade period.
Performance Management l
Monitors the performance of the internal and external telecommunications networks and generates alarms when the performance deteriorates
l
Monitors the operating status of the BTS, such as monitors the traffic volume on the ports and measures the technical data of the BTS
l
Monitoring the usage of key components in the board, such as the CPU and DSP
Security Management The OM system provides security management functions, such as connection management, user authentication, encryption, and forward and backward resolution of the interface messages between the BTS software and the OMC.
Alarm Management l
Supports query of real-time alarms and history alarms
l
Collects internal and external alarms, such as the environment monitoring device inputs and Boolean inputs
l
Processes alarm correlation to ensure precision and accuracy in locating alarms
l
Provides functions of saving, interpreting, prompting, shielding, filtering, confirming, clearing, post processing, and reporting of alarms
l
Provides functions of detecting and reporting alarms, and processing alarm correlation in the system
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9-7
BTS3900A GSM Product Description
9 OM System of the BTS
Environment Monitoring
9-8
l
The BTS has a perfect environment monitoring system.
l
The environment monitoring system provides customized solutions regarding door control, infrared, smoke, water damage, humidity, and temperature monitoring.
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BTS3900A GSM Product Description
10 Technical Specifications of the BTS3900A
10
Technical Specifications of the BTS3900A
About This Chapter The technical specifications of the BTS3900A involve capacity specifications, RF specifications, engineering specifications, surge protection specifications, physical ports, environmental requirements, and compliance standards. 10.1 Capacity Specifications of the BTS3900/BTS3900A The BTS3900/BTS3900A capacity specifications are in terms of the number of TRXs and cells. 10.2 RF Specifications of the BTS3900/BTS3900A The radio frequency specifications of the BTS3900/BTS3900A involve the specifications related to the operating frequency bands, the transmitter, and the receiver. 10.3 Engineering Specifications of the BTS3900A The BTS3900A engineering specifications consist of the dimensions, weight, power supply, and power consumption. 10.4 Surge Protection Specifications of the BTS3900A This describes the surge protection specifications of the BTS3900A. The surge protection specifications of the BTS3900A ports consist of the DC or AC power supply, antenna, signal, and dry contact alarms. 10.5 Physical Ports of the BTS3900A The BTS3900A provides many physical ports to connect to the external equipment. The physical ports of the BTS3900A consists of power ports, transmission ports, and alarm ports. 10.6 Compliance Standards of the BTS3900/BTS3900A The BTS3900/BTS3900A complies with the standards of power distribution, EMC, surge protection, safety, operating environment, transportation adaptability, and storage adaptability. 10.7 Environmental Requirements of the BTS3900A This describes the environmental requirements. The requirements consist of the BTS3900A consist of the environmental requirements for operating, transporting, and storing the BTS3900A.
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10-1
BTS3900A GSM Product Description
10 Technical Specifications of the BTS3900A
10.1 Capacity Specifications of the BTS3900/BTS3900A The BTS3900/BTS3900A capacity specifications are in terms of the number of TRXs and cells. l
A single cabinet holds up to six DRFUs.
l
A single cabinet serves up to six sectors.
l
A single cabinet supports the maximum configuration of S4/4/4, up to 12 GSM TRXs.
l
A single site supports up to 72 GSM TRXs in the maximum cell configuration of S24/24/24.
10.2 RF Specifications of the BTS3900/BTS3900A The radio frequency specifications of the BTS3900/BTS3900A involve the specifications related to the operating frequency bands, the transmitter, and the receiver.
Operating Frequency Band Table 10-1 lists the frequency bands supported by the BTS3900/BTS3900A. The spacing between two frequencies is 200 kHz. Table 10-1 Operating frequency bands of the BTS3900/BTS3900A Operating Frequency RX Frequency Band Band
TX Frequency Band
PGSM 900 MHz
890–915 MHz
935–960 MHz
EGSM 900 MHz
880–915 MHz
925–960 MHz
GSM 1800 MHz
1710–1785 MHz
1805–1880 MHz
Transmitter specification Table 10-2 lists the rated output power of the DRFU in the BTS3900/BTS3900A. Table 10-2 Output power of the DRFU in the BTS3900/BTS3900A
10-2
Operating Frequency Work Mode Band
Output Power (GMSK/ 8PSK TOC)
900 MHz
Non-combination
45 W/30 W
900 MHz
Combination
20 W/14 W
900 MHz
PBT
71 W/47 W
1800 MHz
Non-combination
40 W/26 W
1800 MHz
Combination
18 W/12 W
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10 Technical Specifications of the BTS3900A
Operating Frequency Work Mode Band
Output Power (GMSK/ 8PSK TOC)
1800 MHz
63 W/42 W
PBT
Receiver specification Table 10-3 lists the static receiver sensitivity of the BTS3900/BTS3900A. Table 10-3 Receiver sensitivity of the BTS3900/BTS3900A Receive Mode
Operating Frequency Band
Static Sensitivity (Typical Value)
Receive independency
900 MHz
-113 dBm
1800 MHz
-113 dBm
Two-way receive diversity
900 MHz
-116 dBm
1800 MHz
-116 dBm
Four-way receive diversity
900 MHz
-118.5 dBm
1800 MHz
-118.5 dBm
10.3 Engineering Specifications of the BTS3900A The BTS3900A engineering specifications consist of the dimensions, weight, power supply, and power consumption.
Dimensions Table 10-4 lists the dimensions of the BTS3900A cabinet. Table 10-4 Dimensions Cabinet Type
Width (mm)
Depth (mm)
Height (mm)
RF cabinet
600
480
700
APM30 Power Cabinet
600
480
700
Cabinet base
600
480
200
Weight Table 10-5 lists the weight of the BTS3900A cabinet. Issue 03 (2008-07-15)
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BTS3900A GSM Product Description
10 Technical Specifications of the BTS3900A
Table 10-5 Weight Cabinet Type
Weight (kg)
RF cabinet (DRFUs not involved)
58
RF cabinet (DRFUs involved)
130
APM30 power cabinet (BBU not involved)
65
APM30 power cabinet + RF cabinet
205
Power supply Power supply: The power supply to the BTS3900A meets the specifications listed in Table 10-6. Table 10-6 Specifications of the input power Power Type
Rated value
Allowed Range
220 V AC
220 V AC
176 V AC to 280 V AC
Power consumption Table 10-7 shows the power consumption of BTS3900A. Table 10-7 BTS3900A Power Consumption
10-4
Configurations
Typical Power Consumption (W)
Maximum Power Consumption (W)
S2/2/2 (900M, TOC = 20 W, not combined)
540
780
S4/4/4 (900M, TOC = 20 W, combined)
1150
2120
S4/4/4 (900M, TOC = 45 W, not combined)
1150
2120
S2/2/2 (1800M, TOC = 18 W, not combined)
530
840
S4/4/4 (1800M, TOC = 18 W, combined)
1140
2070
S2/2/2 (1800M, TOC = 40 W, not combined)
750
1150
S4/4/4 (1800M, TOC = 40 W, not combined)
1140
2070
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10 Technical Specifications of the BTS3900A
10.4 Surge Protection Specifications of the BTS3900A This describes the surge protection specifications of the BTS3900A. The surge protection specifications of the BTS3900A ports consist of the DC or AC power supply, antenna, signal, and dry contact alarms. NOTE
l
The surge protection specifications of the BTS3900A are defined in compliance with EN300 253, YD/T5098, and YD/T 5068. In addition, the specifications meet ITU-TK series and IEC61000-4-5.
l
The unspecified surge current with maximum discharge current is called nominal discharge current.
l
surge protection is required on the DC power input port upper-level .
Table 10-8 Surge protection specifications of the BTS3900A Port Name
Surge Protection Mode
Surge Current
Signal port
Differential mode
3 kA (8/20 us surge current)
Common mode
5 kA (8/20 us surge current)
Differential mode
3 kA (8/20 us surge current)
Common mode
5 kA (8/20 us surge current)
Differential mode
3 kA (8/20 us surge current)
Common mode
5 kA (8/20 us surge current)
Differential mode
60 kA (8/20 us surge current)
Common mode
60 kA (8/20 us surge current)
Differential mode
10 kA (8/20 us surge current)
Common mode
15 kA (8/20 us surge current)
Transmission port
E1 port
AC input port
DC input port
10.5 Physical Ports of the BTS3900A The BTS3900A provides many physical ports to connect to the external equipment. The physical ports of the BTS3900A consists of power ports, transmission ports, and alarm ports. Issue 03 (2008-07-15)
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BTS3900A GSM Product Description
10 Technical Specifications of the BTS3900A
Power port Table 10-9 Power ports of the BTS3900 Port Name
Module
Function
Power input terminal
Wiring Unit of the Power 220 V AC input Subrack (220 V)
Transmission Ports Table 10-10 BBU transmission ports Port Name
Port
Function
INSIDE
DB25, male
Transmits the four E1/T1 signals between the UELP and the GTMU
OUTSIDE
DB26 male
Provides the input and output of the four E1/T1 signals between the BBU and the BSC
CPRI0-CPRI5
SFP
Provides the input and output of the optical and electrical transmission signals between the BBU and the RF module
E1/T1
DB26 male
Provides the input and output of the four E1/T1 signals between the GTMU and the UELP or between the GTMU and the BSC
FE0
RJ45 connector
Reserved. Connects the BBU to a routing device in the equipment room through the Ethernet cable to transmit network information
FE1
DLC connector
Reserved. Connects the BBU to a routing device in the equipment room through the Ethernet cable to transmit network information
10-6
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10 Technical Specifications of the BTS3900A
Table 10-11 DRFU transmission ports Port Name
Port
Function
CPRI0
SFP female connector
Connected to the BBU directly, or connected to the upper-level cascaded DRFU
CPRI1
SFP female connector
Connected to the lower-level cascaded DRFU
Alarms Ports In the BTS3900A system, the alarms ports vary with the optional modules configured in the BBU3900. l
When the BBU3900 is configured with one UPEU, two RS485 buses and 8 dry contact signals are provided.
l
When the BBU3900 is configured with two UPEUs or one UPEU plus one UEIU, 4 RS485 buses and 16 dry contact signals are provided.
Table 10-12 BTS3900A alarm ports Port Name
Port
Function
MON0
RJ45 connector
Provides the input and output of the externally collected environment monitoring signals in format of the RS485 frame to the GTMU
MON1
RJ45 connector
Reserved
EXT-ALM0
RJ45 connector
Transmits the externally collected environment monitoring signals in format of the dry contact signals to the GTMU
EXT-ALM1
RJ45 connector
Reserved
Other External Ports Table 10-13 Other external ports of the BTS3900A
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Port Name
Port
Function
ETH
RJ45 connector
Used for local maintenance and commissioning
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BTS3900A GSM Product Description
10 Technical Specifications of the BTS3900A
Port Name
Port
Function
USB
USB connector
Reserved. Used in software upgrade from a USB disk
TST
USB connector
Connected to a tester for testing the output clock signals
10.6 Compliance Standards of the BTS3900/BTS3900A The BTS3900/BTS3900A complies with the standards of power distribution, EMC, surge protection, safety, operating environment, transportation adaptability, and storage adaptability.
Power Distribution Standards The compliance standards are as follows: l
ETS300132-1-1 Power Supply Interface at the Input to Telecommunication Equipment
l
ETS300132-1-2 Power Supply Interface at the Input to Telecommunication Equipment
EMC Standards The compliance standards are as follows:
10-8
l
CISPR 22 (1997): limits and methods of measurement of radio disturbance characteristics of information
l
EN55022 (1998): limits and methods of measurement of radio disturbance characteristics of information
l
CISPR 24 (1998): Information Technology Equipment --Immunity characteristics --Limits and methods measurement
l
IEC61000-4-2: Electromagnetic compatibility (EMC) Part 2: Testing and measurement techniques Section 2: Electrostatic discharge immunity test Basic EMC Publication
l
IEC61000-4-3: Electromagnetic compatibility; Part 3: Testing and measurement techniques Section 3 radio frequency electromagnetic fields; immunity test
l
IEC61000-4-4: Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques Section 4: Electrical fast transient/burst immunity test Basic EMC publication
l
IEC61000-4-5: Electromagnetic compatibility (EMC) Part 5: Testing and measurement techniques Section 5: Surge immunity test
l
IEC61000-4-6: Electromagnetic compatibility: Part 6: Testing and measurement techniques: Section 6 conducted disturbances induced by radio-frequency fields; immunity test
l
IEC61000-4-29: Electromagnetic compatibility: Part 29: Testing and measurement techniques and voltage variations on d.c. Input power port immunity test
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BTS3900A GSM Product Description
10 Technical Specifications of the BTS3900A l
ETSI 301 489-1 V1.3.1 (2001-09): Electromagnetic compatibility and Radio spectrum Matters (ERM); Electromagnetic Compatibility (EMC) standard for radio equipment and services; Part 1: Common technical requirements
l
FCC Part 15: Federal Communication Committee - part 15- radio frequency device
Surge Protection Standards The compliance standards are as follows: l
IEC 61312-1(1995) Protection Against Lightning Electromagnetic Impulse Part I : General Principles
l
IEC 61643-1(1998) Surge Protective devices connected to low-voltage power distribution systems
l
ITU-T K.11(1993) Principles of Protection Against Overvoltage and Overcurrents
l
ITU-T K.27(1996) Bonding Configurations and Earthing Inside a Telecommunication Building
l
ETS 300 253(1995) Equipment Engineering; Earthing and bonding of telecommunication equipment in telecommunication centers
Safety Standards The compliance standards are as follows: l
3G TR34.907 V3.0.0 Report on electrical safety requirements and regulations
l
IEC 60950-1 Safety of information technology equipment
l
EN 60950-1 Safety of information technology equipment
l
IEC60215 Safety requirement for radio transmitting equipment
Operating Environment Standards The compliance standards are as follows: l
EUROPEAN ETS 300 019-1-3 Class 3.1 "Stationary use at weatherprotected locations"
l
EUROPEAN ETS 300 753: Equipment Engineering(EE) Acoustic noise emitted by telecommunications equipment 1997
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EUROPEAN ETS 300 019-1-3-Amd
Transportation Adaptability Standards The compliance standard is as follows: EUROPEAN ETS 300 019-1-2 Class 2.3 "PUBLIC transportation"
Storage Adaptability Standards The compliance standard is as follows: EUROPEAN ETS 300 019-1-1 Class 1.2 "not temperature-controlled storage" Issue 03 (2008-07-15)
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10-9
BTS3900A GSM Product Description
10 Technical Specifications of the BTS3900A
10.7 Environmental Requirements of the BTS3900A This describes the environmental requirements. The requirements consist of the BTS3900A consist of the environmental requirements for operating, transporting, and storing the BTS3900A. 10.7.1 Environmental Requirements for Operating the BTS3900A This describes the working environment of the BTS3900A, which should meet the specified requirements. The specified requirements consists of the climatic, biological, air purity, and mechanical stress requirements. 10.7.2 Environmental Requirements for Transporting the BTS3900A This describes the optimal transportation environment of the BTS3900A. It focuses on the climatic, waterproofing, biological, air purity, and mechanical stress requirements for transporting the BTS3900A. 10.7.3 Environmental Requirements for Storing the BTS3900A This describes the optimal storage environment of the BTS3900A. It focuses on the climatic, waterproofing, biological, air purity, and mechanical stress requirements for storing the BTS3900A.
10.7.1 Environmental Requirements for Operating the BTS3900A This describes the working environment of the BTS3900A, which should meet the specified requirements. The specified requirements consists of the climatic, biological, air purity, and mechanical stress requirements.
Climatic requirements Table 10-14 lists the climatic requirements during the operation of the BTS3900A. Table 10-14 Climatic requirements Item
Document Scope
Temperature
-40 ºC to +50 ºC (without canopy) -40 ºC to +55 ºC (with canopy)
10-10
Temperature variation rate
≤ 3 ºC/min
Relative humidity
5% RH to 100% RH
Altitude
l
The BTS operates normally when the altitude ranges from -60 m to 3,000 m.
l
When the altitude ranges from 3,000 m to 4,000 m, the operating temperature of the BTS drops by 1ºC each time the altitude increases by 200 m.
Air pressure
70 kPa to 106 kPa
Solar radiation
≤ 1120 W/s2
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Issue 03 (2008-07-15)
BTS3900A GSM Product Description
10 Technical Specifications of the BTS3900A
Item
Document Scope
Thermal radiation
≤ 600 W/s2
Wind speed
≤50 m/s
Biological Environment Requirements The operating environment of the BTS3900A should meet the following biological requirements: l
No fungus or mildew may grow in the equipment room or near the equipment.
l
The place is free from rodents, such as rats.
Air Cleanness Requirements The air cleanliness requirements related to the operating environment are as follows: l
The air is free from explosive, conductive, magnetically conductive, or corrosive dust.
l
The density of chemically active materials meets the requirements listed in Table 10-15. Table 10-15 Requirements for the density of chemically active substances Chemically Active Substance
Unit
Density
SO2
mg/m3
≤0.30
H2S
mg/m3
≤0.10
NH3
mg/m3
≤1.00
Cl2
mg/m3
≤0.10
HCl
mg/m3
≤0.10
HF
mg/m3
≤0.01
O3
mg/m3
≤0.05
NOx
mg/m3
≤0.05
Mechanical Stress Requirements Table 10-16 lists the mechanical stress that the equipment can endure during operation.
Issue 03 (2008-07-15)
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BTS3900A GSM Product Description
10 Technical Specifications of the BTS3900A
Table 10-16 Requirements for mechanical stress Item
Sub item
Document Scope
Sinusoidal vibration
Shift
≤3 mm
None
Acceleration
None
≤10.0 m/s2
Frequency range
2 Hz to 9 Hz
9–200 Hz
Impact response spectrum II
≤250 m/s2
Static payload
0
Unsteady impact
NOTE
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The impact response spectrum refers to the maximum acceleration response curve generated by the equipment under the specified impact excitation. Impact response spectrum II means that the duration of semi-sine impact response spectrum is 6ms.
l
The static payload refers to the capability of the equipment in package to bear the pressure from the top in normal pile-up method.
10.7.2 Environmental Requirements for Transporting the BTS3900A This describes the optimal transportation environment of the BTS3900A. It focuses on the climatic, waterproofing, biological, air purity, and mechanical stress requirements for transporting the BTS3900A.
Climatic Requirements The transportation environment of the BTS3900A should meet the climatic requirements listed in Table 10-17. Table 10-17 Climatic requirements
10-12
Item
Document Scope
Temperature
-40 ºC to +70 ºC
Temperature variation rate
≤ 3 ºC/min
Relative humidity
10% to 100% (without wind)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd
Issue 03 (2008-07-15)
BTS3900A GSM Product Description
10 Technical Specifications of the BTS3900A
Item
Document Scope
Altitude
l
The BTS operates normally when the altitude ranges from -60 m to 3,000 m.
l
When the altitude ranges from 3,000 m to 4,000 m, the operating temperature of the BTS drops by 1ºC each time the altitude increases by 200 m.
Air pressure
70 kPa to 106 kPa
Solar radiation
≤ 1,120 W/m2
Thermal radiation
≤ 600 W/m2
Wind speed
≤ 50 m/s
Road class
2K4, including 2K3 and package transportation on 3rd-level roads in high altitude areas without environment protection
Waterproof Requirements The waterproofing requirements related to the transportation of the BTS are as follows: l
The package should be intact.
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Waterproofing measures should be taken to prevent rainwater from leaking into the package.
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There should be no water accumulated inside transportation vehicles.
Biological Environment Requirements The transportation environment of the BTS3900A should meet the following biological requirements: l
No fungus or mildew may grow in the equipment room or near the equipment.
l
The place is free from rodents, such as rats.
Air Cleanness Requirements The transportation environment of the BTS3900A should meet the following air cleanness requirements: l
The air is free from explosive, conductive, magnetic conductive, or corrosive dust.
l
The mechanically active substance must meet the requirements listed in Table 10-18.
Issue 03 (2008-07-15)
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BTS3900A GSM Product Description
10 Technical Specifications of the BTS3900A
Table 10-18 Requirements for the density of mechanically active substances Mechanically Active Substance
Unit
Density
Suspended dust
(mg/m3)
≤ 35
Falling dust
mg/m2h
≤ 0.2
Sand
(mg/m3)
≤ 30
NOTE l Suspended dust: diameter ≤ 75 μm l Falling dust: 75 μm ≤ diameter ≤ 150 μm l Sand: 150 μm ≤ diameter ≤ 1,000 μm
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The density of chemically active materials meets the requirements listed in Table 10-19. Table 10-19 Requirements for the density of chemically active substances Chemically Active Substance
Unit
Density
SO2
(mg/m3)
≤ 0.30
H2S
(mg/m3)
≤ 0.10
NOx
(mg/m3)
≤ 0.05
NH3
(mg/m3)
≤ 1.00
Cl2
(mg/m3)
≤ 0.10
HCl
(mg/m3)
≤ 0.10
HF
(mg/m3)
≤ 0.01
O3
(mg/m3)
≤ 0.05
Mechanical Stress Requirements The transportation environment of the BTS3900A should meet the mechanical stress requirements listed in Table 10-20. Table 10-20 Requirements for mechanical stress
10-14
Item
Sub item
Document Scope
Sinusoidal vibration
Shift
≤ 3.5 mm
None
None
Acceleration
None
≤ 10.0 m/s2
≤ 15.0 m/s2
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BTS3900A GSM Product Description
10 Technical Specifications of the BTS3900A
Item
Random vibration
Unsteady impact
Sub item
Document Scope
Frequency range
2–9 Hz
9–200 Hz
200–500 Hz
Spectrum density of accelerated speed
30 m2/s3
3 m2/s3
1 m2/s3
Frequency range
2–10 Hz
10–200 Hz
200–500 Hz
Impact response spectrum II
≤ 250 m/s3
Static payload
≤ 10 kPa
NOTE l The impact response spectrum refers to the maximum acceleration response curve generated by the
equipment under the specified impact excitation. Impact response spectrum II means that the duration of semi-sine impact response spectrum is 6ms. l The static payload refers to the capability of the equipment in package to bear the pressure from the top
in normal pile-up method.
10.7.3 Environmental Requirements for Storing the BTS3900A This describes the optimal storage environment of the BTS3900A. It focuses on the climatic, waterproofing, biological, air purity, and mechanical stress requirements for storing the BTS3900A.
Climatic Requirements The storage environment of the BTS3900A should meet the climatic requirements listed in Table 10-21. Table 10-21 Climatic requirements
Issue 03 (2008-07-15)
Item
Document Scope
Temperature
-40 ºC to +70 ºC
Temperature variation rate
≤ 0.5 ºC/min
Relative humidity
10% to 100% (without wind)
Altitude
l
The BTS operates normally when the altitude ranges from -60 m to 3,000 m.
l
When the altitude ranges from 3,000 m to 4,000 m, the operating temperature of the BTS drops by 1ºC each time the altitude increases by 200 m.
Air pressure
70 kPa to 106 kPa
Solar radiation
≤ 1,120 W/m2
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BTS3900A GSM Product Description
10 Technical Specifications of the BTS3900A
Item
Document Scope
Thermal radiation
≤ 600 W/m2
Wind speed
≤ 50 m/s
Waterproof Requirements The storage environment of the BTS3900A should be waterproof. The equipment is preferably stored indoors. The indoor storage environment should meet the following waterproof requirements: l
There should be no water on the ground, and water should not leak into the package of the equipment.
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In the equipment room, the BTS3900A is installed in a position that is not prone to water, for example, from automatic fire protection devices or the air conditioner.
If the equipment has to be placed outdoors, ensure that: l
The package is intact.
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Waterproofing measures are taken to prevent rainwater from leaking into the package.
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There is no water on the ground and water does not leak into the package.
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The package is not directly exposed to sunlight.
Biological Environment Requirements The storage environment of the BTS3900A should meet the following biological requirements: l
No fungus or mildew may grow in the equipment room or near the equipment.
l
The place is free from rodents, such as rats.
Air Cleanness Requirements The storage environment of the BTS3900A should meet the following air cleanness requirements: l
There should be no explosive, conductive, magnetic conductive, or corrosive dust in the air.
l
The mechanically active substance must meet the requirements listed in Table 10-22. Table 10-22 Requirements for the density of mechanically active substances
10-16
Mechanically Active Substance
Unit
Density
Suspended dust
(mg/m3)
≤ 5.00
Falling dust
mg/m2h
≤500.00
Sand
(mg/m3)
≤ 300
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BTS3900A GSM Product Description
10 Technical Specifications of the BTS3900A
Mechanically Active Substance
Unit
Density
NOTE l Suspended dust: diameter ≤ 75 μm l Falling dust: 75 μm ≤ diameter ≤ 150 μm l Sand: 150 μm ≤ diameter ≤ 1,000 μm
l
The density of chemically active materials meets the requirements listed in Table 10-23. Table 10-23 Requirements for the density of chemically active substances Chemically Active Substance
Unit
Density
SO2
(mg/m3)
≤ 0.30
H2S
(mg/m3)
≤ 0.10
NOx
(mg/m3)
≤0.50
NH3
(mg/m3)
≤ 1.00
Cl2
(mg/m3)
≤ 0.10
HCl
(mg/m3)
≤ 0.10
HF
(mg/m3)
≤ 0.01
O3
(mg/m3)
≤ 0.05
Mechanical Stress Requirements The storage environment of the BTS3900A should meet the mechanical stress requirements listed in Table 10-24. Table 10-24 Requirements for mechanical stress Item
Sub item
Document Scope
Sinusoidal vibration
Shift
≤ 1.5 mm
-
Acceleration
-
≤ 5.0 m/s2
Frequency range
2–9 Hz
9–200 Hz
Impact response spectrum II
≤ 250 m/s2
Static payload
≤ 5 kPa
Unsteady impact
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BTS3900A GSM Product Description
10 Technical Specifications of the BTS3900A
Item
Sub item
Document Scope
NOTE l The impact response spectrum refers to the maximum acceleration response curve generated by the
equipment under the specified impact excitation. Impact response spectrum II means that the duration of semi-sine impact response spectrum is 6 ms. l The static payload refers to the capability of the equipment in package to bear the pressure from the top
in normal pile-up method.
10-18
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