WCDMA BTS3900 Hardware Structure

Internal

WCDMA BTS3900 Hardware Structure

BTS3900V200R011 WRAN Training Team

HUAWEI TECHNOLOGIES CO., LTD.

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www.huawei.com

 As an important part of UTRAN,

NodeB mainly processes the signals of physical layer of Uu interface  BTS3900 is a new generation indoor

marco NodeB which is produced by Huawei Co. Ltd.


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Upon completion of this course, you will be able to:  Master the hardware structure of BTS3900

 Master the working principle of different subsystems and boards of BTS3900  Master the cables connection rules of BTS3900

 Know typical configurations of BTS3900


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 《BTS3900 Product Description》  《BTS3900 Hardware Description》


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Chapter 1 NodeB Overview Chapter 2 BTS3900 Hardware Structure Chapter 3 BTS3900 Typical Configuration


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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

UAEU

Universal ATM over E1/T1 Interface and Processing Unit

UIEU

Universal IP Packet over E1/T1 Interface and Processing Unit

UTRP

Universal Transmission Processing Unit

DCDU-01

Direct Current Distribution Unit-01

CPRI

Common Protocol Radio Interface

PSU

The power supply unit

PMU

The power and environment monitoring unit

APM

Advanced Power Module


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NodeB Position in UMTS Network UTRAN

UE Uu

CN Iu Iu-CS

RNC Iub Iu-BC

CS

NodeB Iu-PS

Iur PS

NodeB

Iu-BC

Iub

NodeB

RNC CBC


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NodeB System Architecture Clock synchronization source Uu

UE

Antenna & feeder subsystem

GPS antenna & feeder system

Internal Clock RNC

Iub

BTS3900 cabinet DDF

power supply system

Transmission device

Environment Monitoring device O&M terminal

BTS3900 System


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Chapter 2 BTS3900 Hardware Structure Section 1 BTS3900 Introduction Section 2 BBU Modules Structure

Section 3 RF Modules Structure Section 4 Power Modules Structure Section 5 BTS3900 Cables


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BTS3900 Appearance


Type

Parameters

Dimensions

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

Empty cabinet

≤ 70kg

Weight under full configuration

≤ 160Kg

3*1 and 3*2 Weight

≤ 120Kg

- 48V : Input range of voltage

-38.4V DC to -57V DC

+24V: Input range of voltage

+21.6 V DC to +29 V DC

200 V AC to 240 V AC

200 V AC to 240 V AC 176 V AC to 290 V AC, single-phase

200 V AC/346 V AC to 240 V AC/415V AC

176 V AC/304 V AC to 290 V AC/500 V AC, three-phase

Working Temperature

-20℃～+50℃

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BTS3900 Single Cabinet Full Configuration Structure 1U

9U

19U 2U 1U

1U 2U 1U 2U

- 48VDC Single Cabinet HUAWEI TECHNOLOGIES CO., LTD.

220V AC Single Cabinet

+ 24VDC Single Cabinet All rights reserved

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BTS3900 Stacked Cabinets Full Configuration Structure

3U


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BTS3900 Capacity and Characteristics  System capacity specifications:

 BTS3900 can support up to: uplink 1536 CEs and downlink 1536 CEs

 BTS3900 can support up to: 3*8 cells or 6*4 cells  Characteristics

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

 Networking mode: star, chain, tree 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 phase II


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BTS3900 Logical Structure -48V

+24V/220V

Power Module

PSU

DCDU

WRFU Iub

BBU

RNC

WRFU

Baseband Transmission Control module

Signal


RF Module

Current

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Antenna




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Logical Structure of the BBU3900 Module OMC

External Subsystem

Control Subsystem

Clock mode

Operation& Maintenance

Signaling Processing

Decoding Transmission Adaptation Protocol Processing

FP Processing

RNC

E1/T1 FE Transport Interface


Demodulation Power Control information

Codling

Transport Subsystem

Power mode

Modulation

Baseband Subsystem

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Interface CPRI TO WRFU Module

BBU3900 Module Introduction  Full configuration

 Typical configuration



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



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


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BBU3900 Module Introduction Slot

SLOT0

SLOT4

16

SLOT1

SLOT5

SLOT2

SLOT6

SLOT3

SLOT7

Slot 18

Slot 19

B

WBBP

UTRP

PEU/

F

WBBP

UTRP

EIU

A

WBBP

WMPT

PEU/

WBBP

WMPT

EIU

Active and standby slot definition only for UTRP board

Board

Slot 0

Slot 1

Slot 2

Slot boards definition

Slot 3

Slot 4

Slot 5

WMPT UTRP

available

available

available

available

WBBP

available

available

available

available

UELP

available

available

UFLP

available

available


available

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available

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Slot 6

Slot 7

available

available

BBU Module --- WMPT Board IP transmission on Electrical Port :RJ45

Loading

Testing:USB

GPS antenna: SMA

LEDs Commissioning:RJ45

 Board number：

IP transmission Optical signals: SFP

4E1:DB26

 Main Functions：

 maximum is 2 for one BBU

Providing OM functions

 mandatory board

Controlling other boards in the system and

 working in active and standby

providing the reference clock Providing USB ports for automatic NodeB upgraded Providing transmission port for Iub interface

Providing OM channels HUAWEI TECHNOLOGIES CO., LTD.

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BBU Module --- WMPT Board  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.

ON

The board is reporting hardware alarms.

OFF

The board is running properly.

ON

The board is in active mode.

OFF

The board is in standby mode.

ALM

ACT

Red

Green


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BBU Module --- WMPT Board

LED

Color

Status

Description

LEDs beside the FE1 and FE0 optical port

Green

ON

The connections are functional.

OFF

The connections are faulty.

Blinking

There is ongoing data transmission.

OFF

There is no data transmission.

ON

The connections are functional.

OFF

The connections are faulty.

Blinking

There is ongoing data transmission.

OFF

There is no data transmission.

Yellow

LEDs beside the ETH port

Green Yellow


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BBU Module --- WMPT Board  Two DIP Switches :

 SW1 for setting the E1/T1 working mode  SW2 for setting the protection ground for the E1. Settings of SW1 Bit

T1 Mode

120-ohm E1 Balanced Mode

75-ohm E1 Unbalanced Mode

1

ON

OFF

ON

2

ON

OFF

ON

3

OFF

ON

ON

4

OFF

ON

ON

Settings of SW2 Bit


120-ohm E1 Balanced Mode

75-ohm E1 Unbalance d Mode

1

OFF

ON

2

OFF

ON

3

OFF

ON

4

OFF

ON

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Description

The RRING is for connected to the protection ground

BBU Module --- WBBPa Board CPRI 0~2 (1.25G-2.5G): SFP

LEDs

 Board number： mandatory board, maximum is 6  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  According to the board chip processing capability, WBBP module include seven specifications. Current WBBP is the A version, called WBBPa. HUAWEI TECHNOLOGIES CO., LTD.

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BBU Module --- WBBPa Board  LED of running status of board : Label

Color

Status

Description

RUN

Green

ON


OFF

The board has no power input or is faulty.

1s ON, 1s OFF


0.125s ON/OFF

Software is being loaded to the board.

ON


OFF

The board is not in use.

OFF


ON

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

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.

ACT

ALM

CPRI0 CPRI1 CPRI2

Green

Red

Red Green


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BBU Module --- WBBP Board  There are 2 kinds of Baseband card, WBBPa and WBBPb. The WBBPa support HSDPA (2 ms TTI) and support for HSUPA phase I (10 ms TTI). The WBBPb support HSDPA (2 ms TTI), and support for HSUPA phase II (2 ms TTI).

Board

Uplink R99

Downlink

Type

Cell

/HSUPA CE

R99 CE

HSDPA Capacity

HSUPA

WBBPa

3 cells

128

256

45 HS-PDSCH codes

Phase 1

WBBPb1

3 cells

64

64

45 HS-PDSCH codes

Phase 1

WBBPb2

3 cells

128

128

45 HS-PDSCH codes

Phase 2

WBBPb3

6 cells

256

256

90 HS-PDSCH codes

Phase 2

WBBPb4

6 cells

384

384

90 HS-PDSCH codes

Phase 2


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BBU Module --- UBFA Board

 Board number： mandatory board, maximum is 1  Main Functions：

 Controlling the fan speed  Reporting the fan status to the WMPT

 Detecting the temperature of the fan board Label

Color

Status

Description

STATE

Green

0.125s ON,

The module is not registered, and no

0.125s OFF

alarm is reported.

1s ON, 1s OFF


ON

The module is reporting alarms.

Red


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BBU Module --- UPEU Board  Panel of the UPEA

 Panel of the UPEB

+24V to +12V

-48V to +12V

 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 HUAWEI TECHNOLOGIES CO., LTD.

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BBU Module --- UPEU Board  LED: The UPEU has one LED, indicating the running status of the board.

Label

Color

Status

Description

RUN

Green

ON


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

MON0

1

RJ45


Transmitting RS485 environment monitoring signals

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BBU Module --- UTRP Board 

The UTRP provides ports for eight E1s/T1s and implements transport such as IP and ATM between the BBU3900 and the RNC. 4 E1:DB26

Label

Color

Status

Description

RUN

Green

ON


OFF

The board has no power input or is faulty.

1s ON, 1s OFF


0.125s ON, 0.125s OFF

Software is being loaded to the board.

2s ON, 2s OFF

The board is under test.

ON

The board is in active mode.

OFF

The board is in standby mode.

OFF


ON

The board is reporting alarms and is faulty.

ACT

ALM

Green

Red


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BBU Module --- UTRP Board Type WCDMA UTRP extend transmission board UTRP board should add sub board to provide the different interface type.  WD22UTRP is the main board name. The UTRP has three sub-boards in current version

− UAEU: Eight ATM over E1s/T1s − UIEU: Eight IP over E1s/T1s − UUAS: One unchannelized ATM over SDH/SONET(STM-1/OC-3) interface The board in gray table is not be delivered currently.

Board

Port

UTRP2

Two universal FE/GE optical port

UTRP3

Ports for eight channels of ATM over E1/T1

UTRP4

Ports for eight channels of IP over E1/T1

UTRP6

Port for one unchannelized STM-1/OC-3

UTRP9

Four universal FE/GE electrical ports


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BBU Module --- UEIU Board  Board number: maximum is 1  The UEIU Functions：

 Connecting to an external monitoring device and transmitting RS485 signals to the WMPT

 Connecting to an external alarm device and transmitting dry contact alarm signals to the WMPT  Port : The UEIU has four ports.


Label

Connector Type

MON0

RJ45

MON1

RJ45

EXT-ALM0

RJ45

EXT-ALM1

RJ45

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BBU Module --- SLPU Board UFLP  The auxiliary devices of the

UELP

BBU3900. The devices are

the SLPU, UELP, and UFLP  SLPU: The signal lightning

protection unit is an optional module of the BTS3900 cabinet (-48 V) or the power distribution cabinet.  The UFLP and the UELP

are optional units that are installed in the SLPU.


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BBU Module --- UELP Board  UELP: The universal E1/T1 lightning protection (UELP) unit is a universal E1/T1

The UELP can be optionally installed in the SLPU or the BBU. Each UELP supports the surge protection of 4-way E1/T1 signals.

DB26

DB25



E1 Connection: E1 E1

Indoor DDF


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BBU Module --- UELP Board  DIP Switch: The UELP has one DIP switch, which is used to select whether the

receive terminal is grounded. The DIP switch has four bits.

DIP Switch S1


DIP Status

Description

1

2

3

4

ON

ON

ON

ON

Used for the 75 Ω unbalanced mode

OFF

OFF

OFF

OFF

Used for other modes except the 75 Ω unbalanced mode

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BBU Module --- UFLP Board  UFLP: The universal FE lightning protection (UFLP) board is optionally installed in the

SLPU or BBU. Each UFLP supports 2-way FE surge protection.



IP Cable Connection. Transmission Equipment LAN switch or Router


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RF Module --- WRFU Board 

The WRFU consists of the high-speed interface unit, signal processing unit, power amplifier, and duplex unit


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RF Module --- WRFU Board Type

Label

Connector Type

Description

Port for transceiving RF signals

ANT-RXB

DID connector

Connecting the antenna subsystem

ANT-TX/RXA

DID connector

CPRI

CPRI0

SFP female connector

Connecting the BBU, or the upper-level WRFU during the cascading

CPRI1

SFP female connector

Connecting the lowerlevel WRFU during the cascading

RX-INB

QMA female connector

Input port of diversity signals in the antenna channel

RX-OUTA

QMA female connector

Output port of diversity signals in the antenna channel

Power port

PWR

3V3 power connector

Introducing power

Commissioning port

MON

RJ45 connector

Used for commissioning

Interconnection port for RF receive signals


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RF Module --- WRFU Board 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.

On

The module is in the alarm status.

Off

No alarm is generated.

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.

Off (red)

No VSWR alarm is generated.

On (red)

A VSWR alarm is generated.

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.

ALM

ACT

VSWR

CPRI0 CPRI1


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RF Module --- WRFU Board  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 is 200km  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


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Power Distribution Modes of the BTS3900 

- 48 V DC Distribution


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Power Distribution Modes of the BTS3900  +24 V DC Distribution


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Power Distribution Modes of the BTS3900  220 V AC Distribution


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- 48V Cabinet Power Module --- DCDU-01 Board  Function

 The DCDU-01 supports one -48 V DC power input and ten -48 V DC power outputs  The DCDU-01 supplies power to the BBU, WRFU, FAN, and user devices inside cabinets  The DCDU-01 has the built-in surge protector, which supports the surge protection capability of the differential mode of 10 kA and the common mode of 15 kA - 48V DC Single Cabinet HUAWEI TECHNOLOGIES CO., LTD.

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- 48V Cabinet Power Module --- DCDU-01 Board Name

Label

Description

Power input

NEG(-)

-48 V NEG input wiring terminal

RTN(+)

-48 V RTN input wiring terminal

SPARE2, SPARE1,

 RFU0 to RFU5 supplying power to six WRFUs

BBU, FAN, and RFU5-

 BBU supplying power to the BBU

RFU0

 FAN supplying power to the FAN

wiring terminal Power output port

 SPARE1 and SPARE2 reserved Power switch

SPARE2, SPARE1, BBU, FAN, and RFU5RFU0

 RFU0 to RFU5 controlling the ON/OFF of the current of six WRFUs  BBU controlling the ON/OFF of the current of the BBU  FAN controlling the ON/OFF of the current of the FAN  SPARE1 and SPARE2 controlling the ON/OF of the current on the SPARE1 and SPARE2 power output ports

Alarm output port

SPD ALM


DUDU-01 dry contact alarm output port All rights reserved

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+24V Power Subrack --- PSU (DC/DC) Board  Function

 Converting +24 V DC power to -48 V DC power and leading the -48 V DC power to the DCDU  Monitoring alarms related to module faults ,alarms related to module protection and power out-of-position alarm

(1) Power running LED (2) Protection LED (3) Fault LED

+ 24V DC Single Cabinet HUAWEI TECHNOLOGIES CO., LTD.

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

(1) Power running LED

(2) Protection LED (3) Fault LED 220V AC Single Cabinet HUAWEI TECHNOLOGIES CO., LTD.

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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

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, overtemperature shutdown, remote shutdown, or internal problems of the PSU.

Fault LED

Red


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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

(1) Backplane port

(2) DIP switch

(5) COM port HUAWEI TECHNOLOGIES CO., LTD.

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220V AC Power Subrack --- PMU Board Identifier

Color

Status

Meaning

RUN

Green

On for 1 second and

The module is functional, and the communication with the

off for 1 second

main control unit is normal.

On for 0.125 second

The module runs normally but the communication with the

and off for 0.125

main control unit fails.

second

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.

ALM

Red

On/Off

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

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.

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220V AC Power Subrack --- PMU Board Port

Purpose

RS232/RS422 port

Communicating with the main control unit

Battery control

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

switch

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

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

port

power voltages through an ordinary multimeter.

COM port

Connecting the external signal transfer board

Backplane port

Connecting the backplane


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220V AC Power Subrack --- PMU Board 

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

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

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Monitoring Address

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FAN Unit  The FAN unit refers to the fan box. The FAN unit provides the functions of ventilation

and heat dissipation for cabinets. One FAN unit has four independent fans.

Type

Label

Connector Type

Description

Power port

-48 V

3V3 power connector

Introducing the -48 V DC power

Temperature sensor port

SENSOR

RJ45 connector

Connecting the external temperature sensor

Communication port

COM OUT

RJ45 connector

Cascading the lowerlevel FAN module

COM IN

RJ45 connector

Connecting the main control unit


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BBU3900 Cable Connection


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Cables --- PGND Cable  PGND Cable

OT terminal

Name

Color

Cross-Sectional Area

PGND cable of the BTS3900 WCDMA cabinet

Green and yellow

The cross-sectional area of a wire is 25 mm2.

PGND cable of the DCDU

Green and yellow


PGND cable for the SLPU

Green and yellow


Front door PGND cable

Green and yellow



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Cables --- Power Cable  Power Cable Between the DCDU,BBU,FAN and WRFU


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Cables --- Transmission Cable

E1 Cable

FE Cable

E1 Surge Protection Transfer Cable


FE Surge Protection Transfer Cable

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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

CPR10 port on the WRFU


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Configuration Types of the BTS3900  The BTS3900 supports omni-directional, 2-sector, 3-sector, and 6-sector

configurations. It also supports smooth capacity expansion from 1x1 to 3x8.  This part illustrates the configuration type of the BTS3900 by taking the WBBPa

supporting three cells and the WRFU supporting the 80W/4 carrier as an example.


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Thank You www.huawei.com

WCDMA BTS3900 Hardware Structure

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