WCDMA BTS3900A Hardware Structure Issue 1

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Internal

WCDMA BTS3900A

Hardware Structure

BTS3900AV200R010

WRAN Training Team


As an important part of UTRAN,

NodeB mainly processes the signals of

the physical layer of Uu interface

BTS3900A is a new generation which is

produced by Huawei Co. Ltd.


Upon completion of this course, you will be able to:

Master the hardware structure of BTS3900A

Master the working principle of different subsystems and

boards of BTS3900A

Master the cables connection rules of BTS3900A

Know typical configurations of BTS3900A


《BTS3900A Product Description》

《BTS3900A Hardware Description》


BTS3900A Abbreviations

WMPT WCDMA Main Processing and Transmission Unit

WBBPa WCDMA Baseband Process unit Type A

WRFU WCDMA Radio Filter Unit

UBFA Universal BBU Fan Unit Type A

UEIU Universal Environment Interface unit

UELP Universal E1/T1 Lighting Protection unit

UFLP Universal FE/GE Lighting Protection unit

UPEU Universal Power and Environment Interface Unit

UTRP Universal Transmission Processing Unit

DCDU-02 Direct Current Distribution Unit-02

CPRI Common Protocol Radio Interface

PSU The power supply unit

PMU The power and environment monitoring unit

APM Advanced power module

APMI APM power monitor unit Interface board

AFMU APM fan monitor unit Interface board

FMUA fan environment monitoring unit


NodeB Position in UMTS Network

Iu-BC

RNC

RNC

NodeB

NodeB

NodeB

CS

PS

CBC

UE UTRAN CN

Uu Iu

Iu-CS

Iu-PS

Iu-BC

Iur

Iub

Iub

HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confidential

NodeB Location

PSTN

ISDN

PSPDN

Uu Interface

BTS3900A

BTS3900A

BTS3900A

BTS3900A

M2000

HLR/AUC/EIR

RNC

MSC/SGSN

SMC

IUInterface

MAP

TUP,ISUPUE

UE

UE


Chapter 1 NodeB Overview

Chapter 2 BTS3900A Hardware Structure

Chapter 3 BTS3900A Typical Configuration



Section 1 BTS3900A Introduction

Section 2 Power Modules Structure

Section 3 Modules Structure

Section 4 Cables


BTS3900A Appearance

Type Parameters

Dimensions 600(W)*900(H)*450(D)

Weight under full

configuration

≤ 160Kg

3*1 and 3*2 Weight ≤ 120Kg

-48V input range of voltage -48V DC:-38.4V DC to -57V DC

+24V input range of voltage +24 DC:+21.6 V DC to +29 V DC

220 AC input range of voltage

220 AC: Single-phase or three-

phase power cable

110 AC input range of voltage

220 AC: Single-phase or three-

phase power cable


Typical Configurations of the BTS3900A Cabinet

1. RF cabinet 2. Power cabinet


Typical Configurations of the BTS3900A Cabinet

1. RF cabinet

2. Power cabinet

3. Transmission cabinet

4. Battery cabinet

The BTS3900A cabinet comprises an RF

cabinet and a power cabinet. The

extension battery cabinet and

transmission cabinet are optional.


BTS3900A Capacity and Characteristics

System capacity specifications:

BTS3900A can support up to: 6*4 cells or 3*8 cells

Characteristics

Transmission Type: E1/T1, FE (electrical port ), FE (optical port ),

Networking mode: star, chain, tree, ring and hybrid

Synchronization clock sources: Iub interface clock, GPS, and internal clock

Handover types: softer handover, soft handover and hard handover

Services: CS services, PS services , mixed services and position services

Enhanced functions：RET , HSDPA , HSUPA


BTS3900A Logical Structure






Section 4 Cables


RF Cabinet Modules

The BTS3900A cabinet comprises an RF cabinet and a power cabinet.

The extension battery cabinet and transmission cabinet are optional.

The RF cabinet comprises the following entities: WRFU, DCDU , FMUA,

and FAN unit. The power cabinet comprises the following entities: BBU,

PDU, PMU, and PSU.

You can choose to configure the BTS3900A with a battery cabinet and a

transmission cabinet.

This helps to expand the battery capacity and the installation space for

optional user devices.


RF Cabinet Modules --- WRFU Board

The WRFU consists of the high-speed interface unit, signal processing unit,

power amplifier, and duplex unit.


RF Module --- WRFU Board

Type Label Connector Type Description

Port for

transceiving RF

signals

ANT-RXD N series female

connector

Connecting the antenna

subsystem

ANT-

TX/RXM

N series female

connector

CPRI CPRI_W SFP female

connector

Connecting the BBU, or

the upper-level WRFU

during the cascading

CPRI_E SFP female

connector

Connecting the lower-

level WRFU during the

cascading

Interconnection port

for RF receive

signals

LNA1-IN QMA female

connector

Input port of diversity

signals in the antenna

channel

LNA0-OUT QMA female

connector

Output port of diversity

signals in the antenna

channel

Power port POWER 3V3 power

connector

Introducing power

Commissioning port COM RJ45 connector Used for commissioning


Identifier Status Meaning

RUN On The power input is normal, but the module is faulty.

Off There is no power input, or the module is faulty.

On for 1 second and off for 1 second The module is functional.

On for 0.125 second and off for 0.125

second

The module is loading software or is not started.

ALM On The module is in the alarm status.

Off No alarm is generated.

TX_ACT On The module is functional and is connected to the BBU.

Off The module is not connected to the BBU.

On for 1 second and off for 1 second The module is in the local test status.

VSWR Off (red) No VSWR alarm is generated.

On (red) A VSWR alarm is generated.

CPRI_W

CPRI_E

On (green) The CPRI link is normal.

On (red) The interface module fails to receive signals.

Red LED on for 1 second and off for

1 second

The CPRI link is out of lock.




RF specifications:

One WRFU supports four carriers.

Each carrier’s maximum output power of WRFU is 80W;

The receive sensitivity of single antenna is better than -125.8dBm;

The receive sensitivity of two antennas is better than -128.6dBm;

The maximum searching ability is180km. The maximum access search radius is

configurable with the step size of 300 m;

Configuration Type (No

Transmit Diversity)

Transmit Diversity

Power (W)/Carrier

Typical Power

Consumption (W)

Maximum Power

Consumption (W)

3*1 20 520 630

3*2 20 610 830

3*3 20 810 1070

3*4 20 1020 1330


RF Cabinet Modules --- DCDU-02 Board

The direct current distribution unit

(DCDU) module leads power to each

component in the cabinet.

Functions

The DCDU supports the 1-way -

48 V DC power input and 4-way -

48 V DC power output.

The DCDU leads -48 V DC power

to the WRFU and FMUA in the RF

cabinet.

The DCDU-02 has the built-in

surge protector board, which

provides 10 kA surge protection

capability in differential mode and

15 kA in common mode.

DCDU-02 in the 3RFU cabinet or in the left

of the 6RFU cabinet

DCDU-02 in the 3RFU cabinet or in the right of

the 6RFU cabinet



Name Label Description

Wiring terminal for

power input

NEG(–) -48 V NEG input wiring terminal

RTN(+) -48 V RTN input wiring terminal

Power output port RFU0 to RFU5, FMUA,

and SPARE

RFU0 to RFU2 supplying power to the three

WRFUs in the 3RFU cabinet or in the left of the

6RFU cabinet

RFU3 to RFU5 supplying power to the three

WRFUs in the right of the 6RFU cabinet

FMUA supplying power to the FMUA

SPARE is reserved.

Power switch RFU0 to RFU5, FMUA,

and SPARE

RFU0 to RFU2 controlling the current of the

three WRFUs in the 3RFU cabinet or in the left

of the 6RFU cabinet

RFU3 to RFU5 controlling the current of the

three WRFUs in the 6RFU cabinet or in the right

of the 6RFU cabinet

FMUA controlling the current of the FMUA

SPARE controlling the current of the SPARE

power output port

Alarm output port SPD ALM DUDU dry contact alarm output port



220 V and 110V AC Power Distribution


RF Cabinet Modules --- FAN Unit

The FAN unit provides the functions of ventilation and heat dissipation for the cabinets.

A FAN unit consists of two independent fans.

Functions

Providing forced ventilation and heat dissipation

Supporting the temperature detection

The FAN unit supports:

Adjustment based on the temperature and adjustment controlled by the main control

unit

Fan rotation control function. The FAN unit stops the rotation of the fans when the

ambient temperature is low.


RF Cabinet Modules --- FMUA Board

The FMUA module is a fan environment monitoring unit.

Functions

Leading -48 V DC power to the FAN unit

Collecting environment alarms of the cabinet, such as temperature, humidity, smoke,

water, and door status alarms

Collecting surge protection alarms of the DCDU

Adjustment based on the temperature and adjustment controlled by the main control

unit

Fan rotation control function. The FMUA stops the rotation of the fans when the

ambient temperature is low.

Supporting the functions of temperature detection and report

Supporting cascaded and extension FMUA through the RS485 port



the LEDs on the FMUA.

Identifier Color Status Meaning

RUN Green On for 1 second and off for 1

second

The module runs normally and

communicates normally with the BBU.

On for 0.125 second and off

for 0.125 second

The power supply is normal but the

communications with the BBU is not

normal.

OFF There is no power supply.

ALARM Red On for 0.125 second and off

for 0.125 second

Alarms are generates on both the left

and right fans of the cabinet.

On for 1 second and off for 1

second

The fan in the right of the cabinet

generates alarms.

ON The fan in the left side of the cabinet

generates alarms.

On for 2 second and off for 2

second

Other alarms are generated.

OFF No alarm is generated or there is no

power supply.



the ports on the FMUA module

Port Type Port Connector Type Description

Power port –48 V 3V3 power connector -48 V DC power is supplied to the power

port.

RS485

communication

interface

COM IN RJ45 connector Connects to the main control unit.

COM OUT RJ45 connector Cascades lower-level FMUA.

TEM RJ45 connector Indicates the port for monitoring cabinet

temperature.

TEM_HUM ARRESTER RJ45 connector Connects the SPD ALM port of the DCDU

through the monitoring signal cable

between the FUMA and DCDU.

Ports on the FAN

unit

FAN0 and FAN -1 4-pin connector Connects to the FAN unit in the left of the

cabinet through the power cable for the

FAN unit.

FAN2 and FAN -3 4-pin connector Connects to the FAN unit in the right of

the cabinet through the power cable for

the FAN unit.

Boolean alarm port Group one (from left to right) Dry contact connector Extension Boolean alarm port

Group two (from left to right) Dry contact connector

Group three (from left to right) Dry contact connector Ports for the smoke sensor and door

status sensor

Group four (from left to right) Dry contact connector Port for the water sensor


RF Cabinet Modules --- Batteries

Batteries in the RF Cabinet

The batteries in the RF cabinet provide NodeBs with power supplies.

Batteries are configured in the 3 RFU RF cabinet.

Appearance

Batteries in the RF cabinet are classified into two types.

(1) -12 V 50 Ah battery (2) -12 V 92 Ah battery






Section 4 Cables


Power Cabinet Modules

The components in the power cabinet are as follows: BBU,

SLPU, PDU, PMU/PSU, AFMU, AFMI, and sensors.


BBU3900 Module Introduction

Mandatory boards and modules：WMPT, WBBP, UBFA, and UPEU

The optional boards are the UELP, UFLP, UTRP, and UEIU.

Full configuration

Typical configuration


BBU Module --- WMPT Board

Board number：

maximum is 2 for one BBU

mandatory board

working in active and standby mode

4E1:DB26

IP transmission on

Electrical Port :RJ45

IP transmission

Optical signals: SFP

GPS antenna: SMA

Commissioning:RJ45

Loading Testing:USB

LEDs

Main Functions：

Providing OM functions

Controlling other boards in the system and

providing the reference clock

Providing USB ports for automatic NodeB

upgraded

Providing transmission port for Iub interface

Providing OM channels



LEDs of running status of WMPT:

Label Color Status Description

RUN Green ON The board has power input, yet the board is faulty.

OFF The board has no power input.

1s ON, 1s OFF The board is running as configured.

0.125s ON, 0.125s OFF The software is being loaded to the board, or the

board is not in use.

ALM Red ON The board is reporting alarms and is faulty.

OFF The board is running properly.

Blinking The external ports of the board are faulty.

ACT Green ON The board is in active mode.

OFF The board is in standby mode.



LED Color Status Description

LEDs beside the

FE1 and FE0 optical

port

Green ON The connections are functional.

OFF The connections are faulty.

Yellow Blinking There is ongoing data transmission.

OFF There is no data transmission.

LEDs beside the

ETH port

Green ON The connections are functional.

OFF The connections are faulty.

Yellow Blinking There is ongoing data transmission.

OFF There is no data transmission.


BBU Module --- WBBPD Board

Board number： mandatory board

Main Functions：

Providing the CPRI interface for communication between the BBU and the

WRRU or WRFU

Processing uplink and downlink baseband signals and support HSUPA and

HSDPA function

Supporting 1+1 backup of the CPRI interface


BBU Module --- WBBPD Board

LED of running status of board :


RUN Green ON The board has power input, yet the board is faulty.

OFF The board has no power input or is faulty.

1s ON, 1s OFF The board is running properly.

0.125s ON/OFF Software is being loaded to the board.

ACT Green ON The board is running properly.

OFF The board is not in use.

ALM Red OFF The board is running properly.

ON The board has alarms on hardware and it should be replaced with a new one.

Blinking The external ports of the board are faulty and should be handled.

CPRI0

CPRI1

CPRI2

Red

Green

OFF normal

ON The CPRI links over the optical cable are faulty.

Blinking at 2 Hz The RRU on the CPRI link is faulty in hardware.

Blinking at 0.5 Hz The RRU on the CPRI link is faulty in the antenna system connection.



STATE Green 0.125s ON,

0.125s OFF

The module is not registered, and no

alarm is reported.

1s ON, 1s OFF The module is operational.

Red ON The module is reporting alarms.

Board number： mandatory, maximum is 1

Main Functions：

Controlling the fan speed

Reporting the fan status to the WMPT

Detecting the temperature of the fan board

BBU Module --- UFAN Board


Panel of the UPEA

BBU Module --- UPEU Board

Board number： mandatory, maximum is 2, 1+1 backup

Main Functions：

Converting -48 V or +24 V DC power input to +12 V DC power that is supported

by boards

Reporting alarms related to input and output under voltage

Providing transmission ports for RS485 signals and 8 dry contact alarm signals

-48V to +12V


LED: The UPEU has one LED, indicating the running status of the board.


RUN Green ON The board is operational.

OFF The board has no power input, or

the board is faulty.

Socket and Port: The UPEU has one socket and four ports.

Label Quantity Connector Type Function

PWR 1 3V3 DC power input

EXT-ALM1 1 RJ45 Transmitting dry contact alarm signals

EXT-ALM0 1 RJ45

MON1 1 RJ45 Transmitting RS485 environment

monitoring signalsMON0 1 RJ45

BBU Module --- UPEU Board


Power Cabinet Modules --- PDU

The PDU (short for Power Distribution Unit) performs AC or DC power distribution.

SN Description

1 AC wiring terminals

For the 110 V dual-live-wire input, use L2

For the single-phase 220 V/three-phase 220 V input, use N1 and N2

2 AC wiring terminals

For the 110 V dual-live-wire input, use L1

For the single-phase 220 V/three-phase 220 V input, use L1, L2 and L3

3 AC output wiring terminals (Lout1, Lout2)

4 AC output wiring terminals (Nout1, Nout2)

5 AC input MCB

6 AC output MCB (controls the power supply to the heating film or heaters)

7 DC output MCBs (SW0-SW9)

8 DC output wiring terminals (LOAD0-LOAD9)


220V AC Power Subrack --- PSU(AC/DC) Board

(1) Power running LED

(2) Protection LED

(3) Fault LED

220V AC Single Cabinet

Function

The power subrack consists of the PMU, PSU (AC/DC) and the wiring unit of the

power subrack (220 V). The power subrack (AC/DC) converts the 220 V AC

power to the -48 V DC power.


220V AC Power Subrack --- PSU(AC/DC) Board

LED Color Status Meaning

Power

running

LED

Green On Normal

Off There are faults (such as no AC input, or overvoltage and

undervoltage of AC input) on the mains, or the PSU has no output.

Protection

LED

Yellow Off Normal

On Temperature pre-alarm or fan pre-alarm

Fault LED Red Off Normal, or the PSU has no output because of faults (such as no AC

input, or overvoltage and undervoltage of AC input) on the mains.

On There is no output because of output overvoltage shutdown, fan

fault, over temperature shutdown, remote shutdown, or internal

problems of the PSU.


220V AC Power Subrack --- PMU Board

The power and environment monitoring unit (PMU) is the unit for monitoring the

power and the environment. The PMU provides perfect power system management,

power distribution detection, and alarm report functions.

(1) LEDs (2) Power supply

test ports

(3) RS232/RS422 port (4) Battery control

switches

(5) COM port

(1) Backplane port (2) DIP switch



Identifier Color Status Meaning

RUN Green On for 1 second and

off for 1 second

The module is functional, and the communication with the

main control unit is normal.

On for 0.125 second

and off for 0.125

second

The module runs normally but the communication with the

main control unit fails.

If the PMU does not communicate with the main control unit

for one minute, the communication fails. In this situation, the

RUN LED blinks four times every second.

On/Off The PMU is faulty (not in the power-on self-check state).

ALM Red On The following alarms are reported:

Mains overvoltage or undervoltage alarm

Busbar overvoltage or undervoltage alarm

Power module alarm

Load shutdown alarm

Off No alarm is generated.



Port Purpose

RS232/RS422 port Communicating with the main control unit

Battery control

switch

The battery control switch has two control ports ON and OFF, which are

used for powering on and off the battery.

Press and hold the port ON for 5s to 10s until the battery is powered on.

Press and hold the port OFF for 5s to 10s until the battery is powered off.

CAUTION:

You need to insert a small round bar into the hole when you operate the

battery control switch. When you hear a crack, the battery is powered on or

off.

To operate the battery control switch on the front panel of the PMU, insert

a small round pole into the hole.

Power supply test

port

Two power supply test holes -48 V and 0 V are available for measuring

power voltages through an ordinary multimeter.

COM port Connecting the external signal transfer board

Backplane port Connecting the backplane



DIP Switch: The DIP switch is

located on the rear panel of the

PMU. The DIP switch has eight

bits, which are set to OFF before

delivery.

Bit 3 Bit 2 Bit 1 Bit 0 Monitoring Address

0 0 0 0 0000

0 0 0 1 0001

0 0 1 0 0010

0 0 1 1 0011

0 1 0 0 0100

0 1 0 1 0101

0 1 1 0 0110

0 1 1 1 0111

1 0 0 0 1000

1 0 0 1 1001

1 0 1 0 1010

1 0 1 1 1011

1 1 0 0 1100

1 1 0 1 1101

1 1 1 0 1110

1 1 1 1 1111






Section 4 Cables


BBU3900 Cable Connection


Cables --- PGND Cable

PGND Cable

OT terminal

Name Color Cross-Sectional Area One End Is Connected to ... The Other End Is

Connected to ...

PGND cable of the

BTS3900 WCDMA

cabinet

Green and

yellow

The cross-sectional area of a

wire is 25 mm2.

PGND terminal on the right

side of the cabinet

External grounding

bar of the cabinet

PGND cable of the

DCDU

Green and

yellow


wire is 6 mm2.

PGND terminal on the right

side of the DCDU panel

PGND terminal on

the right side of the

cabinet

Front door PGND

cable

Green and

yellow


wire is 6 mm2.

PGND terminal at the front

door of the cabinet

PGND terminal in the

cabinet


Cables --- Power Cable

Power Cable Between the DCDU and the BBU


Cables --- Transmission Cable

E1 Cable

FE Surge Protection Transfer CableE1 Surge Protection Transfer Cable

FE Cable


Cables --- CPRI Cable

This describes the CPRI electrical cable. It helps to implement high speed

communication between the BBU3900 and the WRFU.

Appearance : The CPRI electrical cable is an SFP high speed transmission

cable that has a SFP200 male connector at each end

One End The Other End

CPRI port on the WBBP CPR1_W port on the WRFU


Chapter 1 Fourth Generation NodeB Overview


Chapter 3 BTS3900A Typical Configuration


BTS3900A Typical Configuration

The BTS3900A supports omni-directional, 2-sector, 3-sector, and 6-sector

configurations. It also supports smooth capacity expansion from 1 x 1 to 3 x 8.

This takes the WBBPa module that supports 3-sector and WRFU module that

supports 80 W/4 carrier as an example to describe the configurations of the

BTS3900A

www.huawei.com

Thank You

WCDMA BTS3900A Hardware Structure Issue 1

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Transcript of WCDMA BTS3900A Hardware Structure Issue 1