HUAWEI BTS3900E Hardware Structure and Principle-090519-IsSUE1.0-B

www.huawei.com

Security Level: Internal Use

HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confidential

HUAWEI BTS3900E Hardware Structure and Principle

GBSS Training Team

ISSUE1.0

2009-05

HUAWEI TECHNOLOGIES Co., Ltd. Page 2HUAWEI Confidential

BTS3900E is industry-leading compact BTS unveiled by

Huawei. It is one of the fourth-generation BTS.

Characterized by its small size, large capacity, and low

power consumption and only one functional module, the

BTS3900E, is an integrated BTS with outstanding

performance, which is applicable to the indoor coverage,

hotspot coverage, and rural edge network coverage.


Know the BTS3900E hardware structure and principle Know the BTS3900E typical networking and scenarios Master the BTS3900E data configuration Know the BTS3900E power supply and monitoring solution Master the BTS3900E functions and features


BTS3900E GSM User Guide-(V300R008_01) GSM BTS3900E Deployment Guide-20090430-A-V1[1].0 GBSS8[1][1].1 BTS3900E Product Description V1.0(20090223) GBSS8[1][1].1 BTS3900E Sales Guide V1.1(20090505)


Chapter 1 Overview of BTS3900EChapter 1 Overview of BTS3900E

Chapter 2 BTS3900E Hardware Structure and Principle

Chapter 3 BTS3900E Typical Networking and Configuration

Chapter 4 BTS3900E Typical Scenarios

Chapter 5 BTS3900E Power Supply and Monitoring Solution

Chapter 6 BTS3900E New Functions and Features


BTS3900E Overview

The BTS3900E has a highly integrated design, Small and lightweight, the

BTS3900E is easy to install and endowed with high capacity and extraordinary

performance. The BTS3900E incorporates all the functions of conventional

BTSs in one functional module.


BTS3900E Advantage

Compact Structure and Quick Network Construction The BTS3900E has a highly integrated design, requiring less cable connections and

facilitates installation and maintenance. In compliance with the IP65 protection degree, the BTS3900E features strong

environment adaptability and has no need for an equipment room. The BTS3900E can share the Distributed Antenna System (DAS) on the existing

network. the compact and lightweight BTS3900E has a small number of spare parts, thus

greatly reducing the cost of transportation and maintenance. The various installation options such as wall-mounted, tower-mounted, support-

mounted, and pole-mounted are possible with the BTS3900E which can realize

quick and flexible site deployment, significantly accelerating network construction.


BTS3900E Advantage

Expanded Capacity and Enhanced Coverage In contrast to conventional indoor coverage solutions, the BTS3900E substantially

expands the capacity of the coverage, enhances the traffic absorbing capability. Since it can be installed close to the antenna system, BTS3900E has a high

transmission power at the Top of Cabinet. Combined with the flexibility in site deployment, the BTS3900E remarkably improves network coverage.

Thanks to the advanced Multi-Carrier Power Amplifier (MCPA) technology, the BTS3900E can smoothly and quickly change from the coverage mode to the capacity mode, flexibly responding to network requirements at different phases.

Low Power Consumption and Energy Saving The low power consumption design and natural heat dissipation mode allow the

BTS3900E to work in energy saving and mute mode. Green energy such as the solar and wind energy can be fully utilized.

Low Power Consumption and Energy Saving The BTS3900E supports the PS service of the GPRS and EDGE and smooth

evolution to the EDGE+, thus providing data services of higher rates.


BTS3900E Features

Features of the BTS3900E One site supports up to 3 BTS3900E modules, , three sectors, and 18 TRXs. Support the advanced Multi-Carrier Power Amplifier (MCPA) technology, The

BTS3900E supports up to six carriers. BTS3900E in full configuration is the S666. The omni-directional BTS3900E

supports the O12 configuration at most. Support the whole frequency band of PGSM900/EGSM900, high 45MHz frequency

band and low 45MHz frequency band of DCS1800MHz. The BTS3900E has only one transmit channel; therefore, it does not support the

cross-cell configuration. The BTS3900E does not provide the receive diversity interconnection interface, that

is, when a cell adopts the configuration of two modules with a single antenna, the receive diversity cannot be implemented.

The BTS3900E can be deployed with the BSC in the star, chain, and ring networking modes (the tree networking mode not supported). In the chain and ring networking modes, up to five cascading levels are supported.


BTS3900E Features

Features of the BTS3900E Support E1/IP transmission. Support whole IP networking modes. Support Easy GSM Features. Support local switching. The AC BTS3900E module supports the report of the mains power-off alarm. When

AC modules of a site are combined, the alarm is generated only when the mains of

the major cabinet module is powered off. If the built-in antenna (directional antenna or omni-directional antenna) is used, the

receive diversity signal is not available. Support Clock over IP Client. The DC BTS3900E module supports the two-level cascading power supply.


Restriction of the BTS3900E

Restriction of bandwidth If the frequency is limited, in the scenario that less than or equal to six TRXs are

configured in the cell and two modules are required, the BTS3900E is not

recommended.

Functions cannot be used with the power sharing Concentric cell Co-BCCH Aggressive frequency reuse in BCCH

Item BTS3900ETransmit instantaneous bandwidth (MHz) 15 MHz

Receive instantaneous bandwidth (MHz) 25 MHz


Restriction of the BTS3900E

Restriction of Frequency hopping capability If the frequency set meets the restriction of 15 MHz, the baseband frequency

hopping and RF frequency hopping are supported. For the O7–O12 model configured with two modules, if the transmit frequency set

does not meet the restriction of 15 MHz, but meets the restriction of receive 25

MHz, you can configure the baseband frequency hopping and one frequency

hopping group. If the frequency set does not meet the restriction of 15 MHz, but the RF frequency

hopping is required, you can configure two frequency hopping groups. Each group

cannot exceed the restriction of 15 MHz.


BTS3900E Output Power

The output power of the BTS3900E is classified into two kinds at present: output power based on the ETSI specifications and output power based on the Class 2 specifications.

900 MHz 1800 MHz

TRX Quantity Static output power(GMSK/8PSK)

Static output power(GMSK/8PSK)

1TRX 30 W/20 W 26 W/17 W

2TRX 15 W/10 W 13 W/8.5 W

3TRX 8 W/5 W 7 W/4.7 W

4TRX 6 W/4 W 5 W/3.3 W

BTS3900E output power based on the ETSI specifications

900 MHz 1800 MHz

TRX Quantity Static output power(GMSK/8PSK)

Static output power(GMSK/8PSK)

1TRX 30 W/20 W 26 W/17 W

2TRX 15 W/10 W 13 W/8.5 W

3TRX 8 W/5 W 7 W/4.7 W

4TRX 6 W/4 W 5 W/3.3 W

5TRX 3 W/2 W 2.5 W/1.6 W

6TRX 2.5 W/1.6 W 2 W/1.3 W

BTS3900E output power based on the Class 2 specifications


Chapter 1 Overview of BTS3900E

Chapter 2Chapter 2 BTS3900E Hardware Structure and PrincipleBTS3900E Hardware Structure and Principle






BTS3900E Module

With a highly integrated structure, the BTS3900E incorporates all the following

functions of conventional BTSs in one functional module: transmission, main

control, baseband processing, RF processing. The BTS3900E has two types of functional modules: AC module and DC

module, where the former supports 110 and 220 V AC power inputs and the

latter supports –48 V DC power input.

BTS3900E AC BTS3900E DC


BTS3900E Hardware Architecture

The functional module of the BTS3900E consists of the following units: AC/DC

converter, DC/DC converter, Transmission interface unit, Alarm interface unit,

Main control unit, Baseband unit, RF unit.

Structure of the AC module Structure of the DC module


BTS3900E Hardware

Dimensions (with the housing ): 17L(DC) ， 23L(AC) Dimensions (without the housing ): 12L(DC) ， 17L(AC) Weight (with the housing ): 13.5kg(DC) , 17Kg(AC) Weight (without the housing ): 12kg(DC) , 15.5Kg(AC)

370mm

48

5 m

m

130mm

BTS3900E AC

268mm

48

5 m

m

130mm

BTS3900E DC


BTS3900E Hardware

Panels of the BTS3900E The BTS3900E has three panels, namely bottom panel, cabling cavity panel, and

LED panel. The panels of the AC-powered BTS3900E and the DC-powered BTS3900E are at

the same positions. The power socket of the DC-powered BTS3900E is located in the cabling cavity

whereas that of the AC powered BTS3900E is at the bottom.

No. Description

1 LED panel

2 Cabling cavity panel

3 Bottom panel

1

23

Panels of the DC-powered BTS3900E Panels of the AC-powered BTS3900E


BTS3900E Hardware

Panels of the BTS3900EItem Label Description

Cabling cavity panel

SFP0 High-speed ports for BTS3900E cascading

SFP1

FE Transmission port, supporting 802.3af compliant Power-over-Ethernet (PoE)

ETH Ethernet port for local maintenance

VSWR Button for the VSWR test

SW DIP switch. For details

RST Button for resetting the BTS3900E

USB Reserved port. Function to be implemented: Automatic software upgrade through USB disk

RTN(+)0 DC-powered BTS3900E: Wiring posts for DC power input to the BTS3900E

NEG(-)0

RTN(+)1 DC-powered BTS3900E: Wiring posts for power supply to the cascaded BTS3900E

NEG(-)1

Bottom panel ANTA_TX/RX Antenna connector for transmitting and receiving RF signals

ANTB_RX Antenna connector for receiving RF signals

RET/TST Reserved portFunctions to be implemented: This port will work as an RET antenna port that is in compliance with AISG2.0 protocol. The BTS3900E will communicate with the RET antenna through this port in order to control the RET antenna.

E1/T1 Transmission port, providing two E1s/T1s

MON Monitoring port, providing one RS485 environment monitoring signal input and four dry contact environment monitoring signal inputs

PWR AC-powered BTS3900E: for AC power input

Cabling cavity panel

Bottom panel


BTS3900E Hardware

LEDs on the BTS3900E LED Color State Description

RUN Green Blinking (ON for 1s and OFF for 1s) The BTS3900E works properly.

Blinking (ON for 0.25s and OFF for 0.25s)

Software is being loaded to the BTS3900E, or the BTS3900E is not started.

ON The power input is normal, but the BTS3900E is faulty or being started.

OFF The BTS3900E has no power input, or alarms are generated.

ALM Red ON An alarm is generated, and the BTS3900E needs to be replaced.

Blinking (ON for 0.5s and OFF for 0.5s) An alarm is generated and needs to be cleared according to the handling suggestion.

OFF No alarm is generated.

TX_ACT Green ON The PA works properly.

Blinking (ON for 1s and OFF for 1s) The BTS3900E works properly, but the PA does not work.

SFP0/SFP1 Red/Green

ON (green) The CPRI link is normal.

ON (red) Data reception is abnormal.

Red (ON for 2s and OFF for 2s) The CPRI link is out of lock.

OFF The SFP module is out of position.

VSWR Red OFF No VSWR alarm is generated.

ON A VSWR alarm is generated at the ANTA_TX/RX port.

LIU0/LIU1 Green ON A local E1 alarm is generated, or the E1 cable is not connected.

Blinking (ON for 0.5s and OFF for 0.5s) A remote E1 alarm is generated.

OFF The BTS3900E works properly.

FE Green OFF The FE connection is faulty.

ON The FE connection is normal.

MODE Green ON The BTS3900E module is a basic module.

Blinking (ON for 1s and OFF for 1s) The BTS3900E module is an extension module.


BTS3900E Hardware

DIP Switch on the BTS3900E When the modules are combined, the BTS3900E module connected to the BSC

through the E1/FE port is called the major cabinet module, and the modules connected to the major cabinet module through the combined cabinet interfaces are called the minor cabinet modules. The major cabinet module and minor cabinet modules must be determined by the DIP in the maintenance cavity.

There is only a 4-bit DIP switch on the BTS3900E. The 4-bit DIP switch is located in the BTS3900E cabling cavity. After setting the DIP switch, you need to reset the BTS3900E to make the settings

take effect. Functions of the 4-bit DIP switch

Bits 1 and 2 are used to specify whether the BTS3900E is a basic module or an extension module and the transmission mode.

When bits 1 and 2 are set to ON, bits 3 and 4 can be used to specify the grounding state of the 75-ohm E1 transmission.


BTS3900E Hardware

Settings of the 4-bit DIP switch

Setting Description1 2

ON ON Basic module, 75-ohm E1 transmission

OFF ON Basic module, 120-ohm E1 transmission

ON OFF Basic module, T1 transmission

OFF OFF The BTS3900E module is an extension module.

Bit Setting Description

3 ON The second E1, RX grounded

OFF The second E1, RX not grounded

4 ON The first E1, RX grounded

OFF The first E1, RX not grounded

Setting Description

1 2 3 4ON ON OFF OFF Basic module, 75-ohm E1

transmission, RX not grounded

Default settings of the 4-bit DIP switch

Settings of the 4-bit DIP switch (1) Settings of the 4-bit DIP switch (2)


Auxiliary Devices of the BTS3900E

Briefly description of the BTS3900E Auxiliary Devices

Auxiliary devices Description

APM30(Advanced Power Module 30)

Backup power system for outdoor applications. The APM30 consists of the power cabinet, battery cabinet, and transmission cabinet. The battery cabinet provides long-term power backup. The transmission cabinet provides 11 U space for transmission devices.

APM30H Advance Power Module (with Heat-exchanger Cooling)

Backup power system for outdoor applications. The APM30H consists of the APM30H power cabinet, IBBS200T, and TMC11H. The IBBS200T provides long-term power backup. The TMC11H provides DC power and space for customer equipment.

EMU (Environment Monitoring Unit) Monitoring environmental conditions of the equipment room.

AC Surge Protection Box Provide surge protection for AC power, and the surge protection capability is 15 kA in either differentiated mode or common mode.


Auxiliary Devices of the BTS3900E

AC Surge Protection Box If the AC BTS3900E is used in the outdoor coverage, the surge protection box must

be configured. The model of the surge protection box is SPD60D. The AC surge protection box is used to provide surge protection for AC power, and

the surge protection capability is 15 kA(10/350us) in either differentiated mode or

common mode.Item Description

Depth (mm) x width (mm) x height (mm)

240 x 140 x 75

Installation option Pole-mounted or wall-mounted

Surge protection capability

15 kA either in differentiated mode or in common mode (10/350 us)

Item Label Description

(a) Bottom panel IN AC power input

OUT Output of protected power

(b) Side panel - Wiring terminal for the external PGND cable

- Wiring terminal for the PGND cable of the BTS3900E

(c) Cabling cavity panel

L/L' Wiring posts for the power cable

N/N'

GND




Chapter 3 BTS3900E Typical Networking and ConfigurationChapter 3 BTS3900E Typical Networking and Configuration





BTS3900E Networking

Networking Capability The BTS3900E provides two E1 interfaces. It can be deployed with the BSC in the

star, chain, and ring networking modes (the tree networking mode not supported). In the chain and ring networking modes, up to five cascading levels are supported.

If the BTS3900E adopts the FE IP transmission, only the star networking mode is supported.

If the BTS3900E adopts the IP transmission mode, The BTS3900E supports the IP private network transmission mode only.

Networking description The BTS3900E module connected to the BSC is the major cabinet module, which

supports the transmission with the BSC and provides the baseband and RF signals processing function.

The BTS3900Es connected to the major cabinet module are the minor cabinet modules, which are connected to the major cabinet module through high-speed cables or optical cables and provide the baseband and RF signals processing function.


BTS3900E Networking

Combined cabinet——star networking mode The physical connection must be consistent with the data configuration. The major cabinet module and minor cabinet modules must be determined by the

DIP in the maintenance cavity.

High-speed cables or

optical cables

ABIS

BSC6000

BTS3900E BTS3900E BTS3900E


optical cables


BTS3900E Networking

Combined cabinet——chain networking mode The physical connection must be consistent with the data configuration. The major cabinet module and minor cabinet modules must be determined by the

DIP in the maintenance cavity.

ABIS

BSC6000

BTS3900E BTS3900E BTS3900E


optical cablesHigh-speed cables or

optical cables


BTS3900E Typical Configuration

Indoor coverage, O1-O6 One BTS3900E, One uni-polarized antenna. The Send Receive Mode: Single Feeder (1TX + 1RX).

SFP0

SFP1

ANT Antenna

ANTB_RXANTA_TX/RX



Indoor coverage, O2-O12 Two BTS3900Es, One dual-polarized antenna. The Send Receive Mode: Single Feeder (1TX + 1RX).

ANTA_TX/RX

SFP0

SFP1

ANT Antenna

ANTB_RX

SFP0

SFP1

ANTB_RXANTA_TX/RX

Combined cabinet cable



Outdoor coverage, O1-O6 One BTS3900E, One dual-polarized antenna. The Send Receive Mode: Single Feeder (1TX + 1RX).

SFP0

SFP1

ANT Antenna

ANTB_RXANTA_TX/RX



Outdoor coverage, S1/1 to S6/6 Two BTS3900Es, Two dual-polarized antennas. The Send Receive Mode: Single Feeder (1TX + 1RX).

SFP0

SFP1

ANT Antenna

ANTB_RXANTA_TX/RX

SFP0

SFP1

ANT Antenna

ANTB_RXANTA_TX/RX

Inter-BTS3900E cable



Outdoor coverage, S1/1/1 to S6/6/6 Three BTS3900Es, Three dual-polarized antennas. The Send Receive Mode: Single Feeder (1TX + 1RX).

SFP0

SFP1

ANT

ANTB_RXANTA_TX/RX

SFP0

SFP1

ANT

ANTB_RXANTA_TX/RX

SFP0

SFP1

ANT

ANTB_RXANTA_TX/RX

Inter-BTS3900E cable





Chapter 4 BTS3900E Typical ScenariosChapter 4 BTS3900E Typical Scenarios





Section 1Section 1 Indoor CoverageIndoor Coverage

Section 2 Outdoor Coverage


Indoor Coverage—AC Power Input

O1-O6 Configurations Hardware: one AC-powered BTS3900E. External power input system:

– 110 V AC single-phase: 2 A to 5 A – 220 V AC single-phase: 2 A to 5 A

Installation: The BTS3900E can be mounted on the wall or H-shaped stand. Capacity expansion: the space for mounting another BTS3900E can be left on the

wall. In addition, a maximum of three BTS3900Es can be mounted on the H-shaped

stand.

BTS3900E AC

AC INPUT

Antenna

RF jumper of the BTS3900E Inter-BTS3900E cablePower cable


Indoor Coverage—AC Power Input

O2-O12 Configurations Hardware: two AC-powered BTS3900Es. External power input system:

– 110 V AC single-phase: 2 A to 5 A – 220 V AC single-phase: 2 A to 5 A

Installation: The BTS3900Es can be mounted on the wall or H-shaped stand. Capacity expansion: A maximum of three BTS3900Es can be mounted on the H-

shaped stand, which facilitates capacity expansion. The two AC-powered BTS3900Es are interconnected through the SFP ports.

AC INPUT

BTS3900E AC

BTS3900E AC

Antenna



Indoor Coverage—-48 V DC Power Input

O1-O6 Configurations Hardware: one DC-powered BTS3900E. External power input system: The capacity of the external power input system

should range from 5 A to 8 A. Installation: The BTS3900E can be mounted on the wall or H-shaped stand. Capacity expansion: the space for mounting another BTS3900E can be left on the

wall. In addition, a maximum of three BTS3900Es can be mounted on the H-shaped

stand.

-48V DC

Antenna

BTS3900E DC



Indoor Coverage—-48 V DC Power Input

O2-O12 Configurations Hardware: two DC-powered BTS3900Es. External power input system:

If power supply for the BTS3900Es are independent from each other, the capacity of the

external power input system should range from 5 A to 8 A. If the two BTS3900Es are cascaded, the capacity of the external power input system

should range from 10 A to 15 A.

Installation: The BTS3900Es can be mounted on the wall or H-shaped stand. Capacity expansion: A maximum of three BTS3900Es can be mounted on the H-

shaped stand, which facilitates capacity expansion. The two DC-powered BTS3900Es are interconnected through the SFP ports.

-48V DC

BTS3900E DC

BTS3900E DC

Antenna




Section 1 Indoor Coverage

Section 2Section 2 Outdoor CoverageOutdoor Coverage


AC Power Input (No Backup Power Required)

O1-O6 Configurations Hardware: one AC-powered BTS3900E. External power input system: 2 A to 5 A. Installation: The BTS3900E can be mounted on the wall or pole. Capacity expansion: The SPD60D, an AC surge protection box, is used to provide

surge protection for AC power. It supports 220 V AC single-phase input.

Antenna

BTS3900E ACSPD60D

AC INPUT RF jumper of the BTS3900E Inter-BTS3900E cablePower cable


AC Power Input (No Backup Power Required)

S1/1/1-S/6/6/6 Configurations Hardware: Three AC-powered BTS3900Es. External power input system: If power supply of the three BTS3900Es are

independent from each other, the capacity of the external power input system

should range from 2 A to 5 A. Installation: The BTS3900Es can be mounted on the wall or pole. Each of the three AC-powered BTS3900Es should be configured with an AC surge

protection box (SPD60D). The BTS3900E AC(1) works as the basic module. It is connected to another two

extension BTS3900Es through the SFP ports to form a star topology.

SPD60D

Antenna

BTS3900E AC (1)

Antenna

BTS3900E AC

Antenna

BTS3900E AC

SPD60D

AC INPUTSPD60D

AC INPUT

AC INPUT



-48 V DC Power Input (No Backup Power Required) O1-O6 Configurations

Hardware: One DC-powered BTS3900E . The capacity of the external power input system should range from 5 A to 8 A. Installation: The BTS3900E can be mounted on the wall or pole.

-48V DC

Antenna

BTS3900E DC RF jumper of the BTS3900E

Inter-BTS3900E cablePower cable


-48 V DC Power Input (No Backup Power Required) S1/1/1-S/6/6/6 Configurations

Hardware: Three DC-powered BTS3900Es. External power input system: If power supply of the BTS3900Es are independent

from each other, the capacity of the external power input system should range from

5 A to 8 A. Installation: The BTS3900Es can be mounted on the wall or pole. The BTS3900E DC(1) works as the basic module. It is connected to another two


Antenna

BTS3900E DC

Antenna

BTS3900E DC (1)

Antenna

BTS3900E DC

-48V DC



AC Power Input (Backup Power Required)

O1-O6 Configurations Hardware: One DC-powered BTS3900E. The power cabinet (APM30 or APM30H) is mandatory. It converts the 220 V AC

power to -48 V DC power and provides a maximum of 7 U installation space. The BBC or IBBS200T that is used to install batteries is mandatory. Installation option:

The BTS3900E can be mounted on the wall or pole. The APM30 and the BBC or IBBS200T can be installed on the ground in stack mode. The APM30H and the IBBS200T can be installed on the ground in stack mode.

Requirements for the external power input system: 110 V AC dual-live-wire: 32 A/2 Pole 220 V AC single-phase: 32 A/1 Pole 220 V AC three-phase: 16-20 A/3 Pole

If the backup power is required to last two, four, or six hours, the 50 Ah battery pack

should be configured.


AC Power Input (Backup Power Required)

O1-O6 Configurations

BTS3900E DC

AC INPUTJumper

Battery

APM30(H)

-48V DCAntenna

AC/DC-3U

TM-Space-7U



AC Power Input (Backup Power Required) S1/1/1-S/6/6/6 Configurations

Hardware: Three AC-powered BTS3900Es . The power cabinet (APM30 or APM30H) is mandatory. It converts the 220 V AC

power to -48 V DC power and provides a maximum of 7 U installation space. The BBC or IBBS200T that is used to install batteries is mandatory. Installation option:

The BTS3900E can be mounted on the wall or pole. The APM30 and the BBC or IBBS200T can be installed on the ground in stack mode. The APM30H and the IBBS200T can be installed on the ground in stack mode.

If the backup power is required to last two hours, the 50 Ah battery pack should be

configured. If the backup power is required to last four or six hours, the 92 Ah battery pack

should be configured.


AC Power Input (Backup Power Required) S1/1/1-S/6/6/6 Configurations

Requirements for the external power input system: 110 V AC dual-live-wire: 32 A/2 Pole 220 V AC single-phase: 32 A/1 Pole 220 V AC three-phase: 16-20 A/3 Pole

The BTS3900E AC(1) works as the basic module. It is connected to another two


Antenna

BTS3900E DC

Antenna

BTS3900E DC (1)

Antenna

BTS3900E DC

AC INPUTAC/DC-3U

TM-Space-7U

Battery

APM30(H)

-48V DC







Chapter 5 BTS3900E Power Supply and Monitoring SolutionChapter 5 BTS3900E Power Supply and Monitoring Solution




Section 1Section 1 BTS3900E Power Supply SolutionBTS3900E Power Supply Solution

Section 2 BTS3900E Monitoring Solution


BTS3900E Power Supply Solution

Outdoor scenarios AC 220 V power input

If the backup power supply is not required, you can adopt the outdoor AC surge

protection box + AC module solution. The power supply is inputted to the AC module

through the surge protection box. If the backup power supply is required, you can adopt the APM30/APM30H + DC module

solution. The power supply is inputted to the DC module after being converted into the -48

V power supply by the APM30/APM30H.

DC-48 V power input The backup power supply is not required. Adopt the DC module.



When the DC power supply is used, the DC BTS3900E module supports the cascading of power supply cables. The following points must be pay attention to : When multiple BTS3900E DC modules are cascaded, if a lower-level BTS3900E is

damaged and must be replaced, all the cascaded BTS3900Es must be powered off.

In the AC power supply scenario, the quantity of DC power cables from the power

supply cabinet (such as the APM) to the small BTSs can be reduced. In the DC

power supply scenario, the DCDU and TMC cabinet are not required. When multiple BTS3900Es use independent power supplies, if any BTS3900E is

damaged, you can power off the BTS3900E and then replace it with a new one

without powering off the other BTS3900Es. Therefore, the services of the other

BTS3900Es are not affected. If the major BTS3900E is damaged, the services of

the lower-level BTS3900Es in the CPRI cascading are affected, as in the DC power

supply cascading scenario.



When the DC power supply is used, the DC BTS3900E module supports the cascading of power supply cables. The following points must be pay attention to : By default, the delivery solution uses cascading power supply. That is, multiple

modules use only one power cable. The distance between modules: If the 4 mm^2 shielded power cable is used, the

maximum distance is 50 m.



Indoor scenarios AC 220 V power input

If the backup power supply is not required, you can adopt the AC module. The power

supply is inputted to the AC module directly. If the backup power supply is required, you can adopt the PS4890 + DC module solution.

The power supply is inputted to the DC module after being converted into the -48 V power

supply by the PS4890.

DC -48 V power input The backup power supply is not required. Adopt the DC module.



Section 1 BTS3900E Power Supply Solution

Section 2Section 2 BTS3900E Monitoring SolutionBTS3900E Monitoring Solution


BTS3900E Monitoring Solution

Monitoring port The monitoring port of BTS3900E is “MON” port at the Bottom panel of the module. If PMU, APMI, HPMI, and EMU are configured, they can also provide monitoring

ports. The monitoring ports for the BTS3900E (AC) and the BTS3900E (DC) are of the

same type. The BTS3900E provides one RS485 inputs and four dry contact inputs. The surge protection for the four dry contact inputs are 3000 A in differential mode

and 5000 A in common mode respectively.



Monitoring solution The BTS3900E supports four dry contact and one RS48 ports. One monitoring

cable cannot be directly connected to the RS485 and dry contact port of the

monitored device. Therefore, if you want to monitor the RS485 and dry contact at

the same time, the DDF must be configured. AC 220 V power input

If the AC module is to be adopted, the AC module must support the report function of the

mains power-off alarm. If the power supply system (APM30/H/PS4890) + DC module solution is adopted, the

APMI of the APM30/H and the PMU of the PS4890 use the RS485 monitoring interface of

the BTS3900E.



Monitoring principles of the BTS3900E



Functions of the monitoring system

Module Function

PMU Communicating with the BTS3900E through the RS232/RS422 serial port . Managing power system and battery charge/discharge. Detecting and reporting water alarms, smoke alarms, door status alarms, and

standby Boolean value alarms, and reporting ambient humidity and temperature, battery temperature, and standby analog values.

Detecting power distribution and reporting related alarms.

Temperature control unit (DTCU) APM30: AFMU APM30H: HEUA

AFMU: Supplying DC power to the two fans at the top of the cabinet and reporting the

alarms of the fans. Reporting the alarms of the internal ambient temperature sensor, air inlet

temperature sensor, and air outlet temperature sensor. The alarm signals of the AFMU is transmitted to the APMI through the signal

transfer cable and then is reported to the main control board. HEUA: Monitoring the fans and reporting the related alarms

EMU Communicating with the BTS3900E through the RS485 port, through which 2-channel RS485 signals are transmitted.

Detecting the input voltage. Providing a port for connecting with the 12 V DC or 24 V DC temperature and

humidity sensor. Providing ports for input Boolean signals of dry contact type and of OC type. Providing ports for controlling six external Boolean outputs of relay node type.


Monitoring Configuration

DEMU configuration. Configure DEMU board.

Choose the site on LMT, right click ”Add or Delete Site Board”→click ” Add or Delete Site Board” →”Site Device Attributes” windows is displayed →Right click a slot→choose DEMU board.

Configure DEMU board parameter configuration enabled. Right click DEMU board → Choose “Configure Board Attributes”→ Choose “Configure

Site Board Attributes” tab. Configure ”Associated RXU Board No”.

Right click DEMU board → Choose “Configure Board Attributes”→ Choose “Configure Board Attributes” tab.



DEMU configuration. DEMU common alarm switch configuration.

Choose the site on LMT, right click “Configure Board Attributes”→click ” Configure Board Attributes” →right click BTS3900E board → choose” configure RXU Attribute “→ Choose “Configure Site Board Attributes” tab.



DEMU configuration. DEMU RS485 alarm configuration.

Choose the site on LMT, right click “Configure Board Attributes”→ click ” Configure Board

Attributes” → right click DEMU board → Choose “Configure Site Board Attributes” tab.



PMU configuration. The method to configure APMU board, configure APMU board parameter

configuration enabled, Configure ”Associated RXU Board No” are the same as

DEMU. Configure APMU board attributes.

Choose the site on LMT, right click “Configure Board Attributes”→ click” Configure Board

Attributes” → right click APMU board → Choose “Configure Site Board Attributes” tab.

Set APMU Board Type and Set DPSU 0, DPSU 1, and DPSU 2 to Yes or No

according to the actual configuration.



PMU configuration. Alarm Disable Configuration

For the APMI (HERT MPE 301), Boolean signals 1, 2, and 3 are reported through the

IN1, IN2, and IN3 ports on the APMI panel. For the HPMI (HERT MPE 302), Boolean signals 1, 2 and 3 are reported through the

IN0, IN1, and IN2 ports on the HPMI panel.

Alarm Valid Level Configuration Ensure that “Alarm Valid Level Configuration” should be consistent with “Alarm Disable

Configuration”.



PMU configuration. “Special Analog Alarm Disable Configuration “and “special Alarm Switch”.

Set “Special Analog Alarm Disable Configuration” as required. If this parameter is not

used, disable it. Disable the “Environment Temperature 1(Disabled)” and “Preserved Parameter

(Disabled)”.



PMU configuration. Set the battery-related parameters, the parameters related to power supply and

battery temperature compensation. Set “Battery Cabinet Type” to “Inside Storage Battery”, “Outside Storage Battery”, or “No

Storage Battery”. Set “Charge Coefficient” to “0.15C”. Set “Battery Cabinet Capacity” according to the actually configured battery capacity. Set “Temperature foundation for Battery Charging Voltage Compensation” to “Battery 1

Temperature” or “Battery 2 Temperature” according to actual configuration.



DTCU （ AFMU ） configuration. The method to configure DTCU board, configure DTCU board parameter

configuration enabled, Configure ”Associated RXU Board No” are the same as

DEMU. Configure DTCU board attributes.

Choose the site on LMT, right click “Configure Board Attributes”→ click ” Configure Board

Attributes” → right click DEMU board → Choose “Configure Site Board Attributes” tab. Set “High Temperature Alarm Threshold” and “Low Temperature Alarm Threshold”

according to actual requirements.







Chapter 6 BTS3900E New Functions and FeaturesChapter 6 BTS3900E New Functions and Features


Functions and Features

Functions and Features of the BTS3900E Automatic Configuration/Planning Function Automatic coverage and capacity optimization

Application scenarios of BTS3900E Functions The automatic planning/optimization function and the automatic capacity and

coverage optimization function of the BTS3900E is recommended only in the rural

application scenario. In this scenario, there are few neighboring BTSs or there is no

BTS around the BTS3900E. Therefore, the network structure is simple. The automatic planning/optimization function and the automatic capacity and

coverage optimization function of the BTS3900E are provided in the omni cell with

up to two TRXs in the site. That is, the automatic planning/optimization function is

applicable to the O1 and O2 configuration only.



Comparison between the automatic configuration functions of the BTS3900E

and BTS3900B.

Automatic Planning/Automatic Optimization Function BTS3900B BTS3900E

Automatic Planning of Frequency

Frequencies (BCCH frequency and TCH frequency) Supported Supported

BSIC Supported Supported

CGI and RAI Supported Not supported

Neighboring cell Supported Not supported

Automatic Optimization of Frequency

Frequency Not supported Supported

BSIC Not supported Supported

Automatic Optimization of Coverage and Capacity

Not supported Supported



The automatic configuration/planning function of the BTS3900E consists of the following stages: automatic discovery, automatic software loading, automatic frequency planning/optimization, and configuration delivery. Automatic discovery stage

The automatic discovery stage is the process in which the BTS3900E is powered on and

then automatically sets up the connection with the BSC.

Automatic software loading stage the BTS3900E automatically detects the new software version during the operation

process and then automatically loads and activates the software without manual

operation.



The automatic configuration/planning function of the BTS3900E consists of the following stages: automatic discovery, automatic software loading, automatic frequency planning/optimization, and configuration delivery. Automatic frequency planning stage

The automatic frequency planning algorithm is implemented by the M2000. the M2000

automatically assigns the frequencies (including the BCCH frequency and TCH

frequency) and BSIC to the BTS3900E. The CGI, RAI, and list of neighboring cells are

not automatically planned. The automatic frequency planning function of the BTS3900E may conflict with the

following functions: Concentric cell (including the CoBCCH), Frequency hopping,

Antenna hopping, Dual-timeslot expanded cell, Dual-band cell. The BTS3900E does not support the automatic planning of the frequency band type.

That is, when configuring the BTS3900E, you must choose the cell type (in which

frequency band: 900/1800/850/1900).



Automatic frequency planning stage During the automatic planning progress of the frequency, if several BTS3900Es under

one BSC initiate the automatic planning request at the same time, the M2000 controls the

request to ensure that only one BTS3900E under a BSC is under processing. That is, the

BTS3900Es under the same BSC are processed one by one. BTS3900Es under different

BSCs can be processed at the same time. The automatic planning/optimization algorithm is implemented by the M2000. On the BSC

or M2000, you can run the related MML commands to configure the switch. After the automatic planning function is enabled, you cannot manually disable and

modified the function during the entire automatic planning process. To enable the automatic planning function, the maintenance personnel must configure the

parameters (such as the BTS name, CGI, network optimization parameters) on the BSC

in advance. (The frequencies and BSIC are automatically configured during the automatic

planning process.) Upon receiving the frequencies and BSIC of the BTS3900E, the BSC delivers all the

configuration data related to the BTS3900E to the BTS3900E.



The automatic configuration/planning function of the BTS3900E consists of the following stages: automatic discovery, automatic software loading, automatic frequency planning/optimization, and configuration delivery. Automatic frequency optimization stage

After the BTS3900E enters the normal working state, the M2000 monitors the working

frequency periodically through the MS measurement report and the uplink interference

band measurement function. By comparing with the configured threshold, the M2000

determines whether the frequency must be replaced.

Configuration delivery stage The configuration delivery stage is the stage in which the configuration takes effect. If the

BTS3900E configuration data is complete (the data configuration is completed in the

automatic planning stage and the cell frequency and BSIC are configured), the BSC

delivers all the data to the BTS3900E.



Automatic coverage and capacity optimization In the beginning stage of the BTS3900E operation, a single TRX is configured with

the transmit power of 30 W. During the BTS3900E operation, the M2000

periodically measures the network traffic. If the M2000 determines that the cell load

exceeds the configured threshold, the M2000 delivers a command that requests the

BTS3900E to add a TRX, which is configured as TCH TRX. The transmit power of

the BCCH is 20 W, and that of the TCH is 10 W. When the BSC determines that the

load difference between the inner coverage and outer coverage exceeds the

configured threshold, the BSC delivers a command to the BTS3900E to modify the

transmit powers of the BCCH and TCH. Then the BTS3900E modifies the transmit

power of the BCCH to 15 W and that of the TCH to 15 W. In this way, the inner

coverage is enlarged and the requirement on capacity is met.



Automatic coverage and capacity optimization This function solves the coverage and capacity problems that occur when the

service traffic increases slowly, but cannot solve the coverage and capacity

problems that occur when the service traffic suddenly surges. When the service

traffic suddenly surges, you can use the channel all-rate and half-rate conversion to

solve the coverage and capacity problems. After the capacity and coverage automatic optimization algorithm switch is enabled,

if the transmit powers of two TRXs are automatically configured to 20 W and 10 W

respectively, the concentric function is not required. If the configuration is changed from one TRX to two TRXs, the configuration of one

TRX cannot be restored. The transmit powers of the two TRXs are automatically

configured to 20 W and 10 W respectively or 15 W and 15 W respectively based on

the threshold value and actual network conditions.


This course introduces the following content:

The BTS3900E hardware structure and principle

The BTS3900E typical networking and configuration

The BTS3900E typical Scenarios

The BTS3900E Power Supply and Monitoring Solution

The BTS3900E New functions and features

Thank You

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Documents

HUAWEI BTS3900E Hardware Structure and Principle-090519-IsSUE1.0-B