wcdma dbs3900 system hardware structure

5/28/2018 WCDMA DBS3900 System Hardware Structure

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HUAWEI TECHNOLOGIES CO., LTD. All rights reserved

www.huawei.com

Internal

WCDMA DBS3900 System

Hardware Structure

DBS3900V200R011

WRAN Training Team


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HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 2

DBS3900 is new generation distribution

NodeB which is produced by Huawei Co.

Ltd.

In this course, well mainly learn the

hardware system structure, application

scenarios, basic functions of modules and

networking and configuration of the DBS3900


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

Know application scenarios of DBS3900

Master the hardware structure of DBS3900

Master the functions of different modules

Master the cables connection rules of DBS3900

Know networking and configuration examples


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DBS3900 System Description

DBS3900 Hardware Description


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DBS3900 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 (2U)

UEIU Universal Environment Interface unit

UELP Universal E1/T1 Lighting Protection unit

UFLP Universal FE/GE Lighting Protection unitUPEU Universal Power and Environment Interface Unit

UTRP Universal Transmission Processing Unit

RCU Remote Control Unit

CPRI Common Protocol Radio Interface

AISG Antenna Interface Standard Group

TMA Tower Mounted Amplifier

SRXU Slim Receive Unit

APM Advanced Power Module


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Chapter1 General Description

Chapter2 Hardware Introduction

Chapter3 Networking and Configuration


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DBS3900 Overview

DBS3900 is a distributed NodeB of forth generation NodeB.

DBS3900 system consists of:

BBU3900

RRU3804 or RRU3801E

Antenna and feeder system

RNC

-48V DC

power Power cable

Power cable

Trunk cable Fiber or CPRI high-speedsignal cable

RRU

3804 or 3801E

BBU3900

Grounding cable

-48V/ 24VDC power Grounding cable

Antenna

TMA

RF jumper

Feeder

RF jumper



BBU3900 in a Standard 19-Inch Cabinet

Application scenario 1

Launch 3G services on the basis of a 2G site

Benefit of this Application Scenario:

Can reside in any standard 19-inch-wide and 2-U-high cabinet

Can be installed on the metal pole and close to the antenna

The BBU3900 and RRU can share the power supply and antenna systems of the 2G network

Enables operators to launch 3G services on the existent 2G network at a very low cost

2G BTS RF Cable



DBS3900 Integrated Application

Launch a new 3G

outdoor site without an

equipment room

VDF Spain: RRU on Tower

Shelter Air-conditioner

Application scenario 2

BBU3900+RRU+APM

BBU



BBU3900 in a Indoor Cabinet

Application scenario 3:

Launch a new 3G indoor site, there is an equipment room with limited space.

BBU1U/2URRU1U/2URRU

1U/2URRU

RRU

RRU close totower antenna

To RNC



DBS3900 Product Family

Remote radio unit

RRU3804 RRU3801E

Distribute NodeB DBS3900

Baseband unit

BBU3900

Remote radio unit

SRXU

+



DBS3900 Capacity and Characteristics

Specification of the DBS3900

High capacity;

BBU3900 supports 24 cells, with 1,536 UL CEs and 1,536 DL CEs.

One RRU3804 supports the 4-carrier configuration.

When the NodeB expands from 1x1 to 1x4 or from 3x1 to 3x4, no

extra RRU is required.

Characteristics of the DBS3900

Supports RRU cascading

When using the 1.25 G optical module, cascading levels 4



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DBS3900 Capacity and Characteristics

Supports ATMIP and ATM/IP dual stack networking;

Supports multiple clock and synchronization modes;

Iub interface clock

GPS clock

Internal clock

Supports high-speed packet access (HSPA) technology

HSDPA allows the traffic at up to 28 Mbps for a single cell

The peak uplink data rate of an HSUPA subscriber is up to 5.76 Mbit/s.

Supports the Multimedia broadcast and multicast service (MBMS)

Characteristics of the DBS3900


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Section1 BBU Hardware

Section2 RRU HardwareSection3 DBS3900 Cables

Section4 Antenna and Feeder Subsystem


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Logical Structure of the BBU3900

TO RRU

Clock modeSignaling

ProcessingOperation&

MaintenancePower mode

E1/T1

FE

Transport

Interface

Transmission

Adaptation

Protocol

Processing

FPProcessing

Codling

Decoding Demodulation

Modulation

Interfac

e

Module

Transport Subsystem Baseband Subsystem

Control Subsystem

External SubsystemOMC

CPRI

RNC

Power

Control

information

Control flowData flow


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BBU3900 Module Introduction

Mandatory boards and modulesWMPT, WBBP, UBFA, and UPEU

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

Full configuration

Typical configuration

BBU3900 Module

Baseband unit


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BBU3900 Module Introduction

Slot

16

Slot 18

Slot 19

SLOT0

SLOT1

SLOT2

SLOT3

SLOT4

SLOT5

SLOT6

SLOT7

Active and standby slot definition

only for UTRP board

B

FA

PEU/

EIU

PEU/

EIU

WBBP

WBBP

WBBP

WBBP

UTRP

UTRP

WMPT

WMPT

Slot boards definition

availableUFLP

availableUELP

availableavailableavailableavailableWBBP

availableavailableavailableavailableavailableavailableUTRP

availableavailableWMPT

Slot 7Slot 6Slot 5Slot 4Slot 3Slot 2Slot 1Slot 0Board

available

available


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BBU Module --- WMPT Board

Board number

maximum is 2 for one BBU

mandatory board

working in active andstandby mode

4E1:DB26

IP transmission on

Electrical Port :RJ45

IP transmissionOptical 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 clockProviding USB ports for automatic NodeB

upgraded

Providing transmission port for Iub interface

Providing OM channels


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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 hardware alarms.

OFF The board is running properly.

ACT Green ON The board is in active mode.

OFF The board is in standby mode.


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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.


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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

Description

1 OFF ON The RRING is for

connected to the

protection ground2 OFF ON

3 OFF ON

4 OFF ON


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BBU Module --- WBBPa Board

Board numbermandatory, 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.

CPRI 0 ~2 (1.25G-2.5G): SFP LEDs


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BBU Module --- WBBPa 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.

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.


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BBU Module --- WBBP Board

There are 2 kinds of Baseband card, WBBPa and WBBPb.

The WBBPa can Process uplink and downlink baseband signals:Support HSDPA (2 ms TTI) and support for HSUPA phase1 (10 ms TTI).

The WBBPb can Process uplink and downlink baseband signals.

Support HSDPA (2 ms TTI), and support for HSUPA phase2 (2 ms TTI).

Board

Type Cell

Uplink R99

/HSUPA CE

Downlink

R99 CE HSDPA Capacity

HSUPA

throughput

WBBPa 3 cells 128 256 45 HS-PDSCH codes Phase 1

WBBPb1 3 cells 64 64 45 HS-PDSCH codes Phase 1





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STATE Green

0.125s ON,0.125s OFF

The module is not registered, and noalarm is reported.


Red ON The module is reporting alarms.

Board numbermandatory, 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 --- UBFA Board


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Panel of the UPEAPanel of the UPEB

BBU Module --- UPEU Board

Board numbermandatory, 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 +24V to +12V


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


RUN Green ON The board is running properly.

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


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The UTRP provides ports for eight E1s/T1s and implements transport such as IP and

ATM between the BBU3900 and the RNC.


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

OFF The board has no power input or is faulty.


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

2s ON, 2s OFF The board is under test.

ACT Green ON The board is in active mode.

OFF The board is in standby mode.

ALM Red OFF The board is running properly.

ON The board is reporting alarms and is faulty.

BBU Module --- UTRP Board

4 E1:DB26


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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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Label Connector Type

MON0 RJ45

MON1 RJ45

EXT-ALM0 RJ45

EXT-ALM1 RJ45

BBU Module --- UEIU Board

Port : The UEIU has four ports.

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


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BBU Module --- SLPU Board

The auxiliary devices of the

BBU3900. The devices are

the SLPU, UELP, and UFLP

SLPU:The signal lightning

protection unit is an optionalmodule of the BTS3900

cabinet (-48 V) or the power

distribution cabinet.

The UFLP and the UELPare optional units that are

installed in the SLPU.

UFLP

UELP


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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.

E1 Connection:

BBU Module --- UELP Board

DB25 DB26

Indoor DDF

E1

E1


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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

DIP Status Description

1 2 3 4

S1 ON ON ON ON Used for the 75

unbalanced modeOFF OFF OFF OFF Used for other

modes except the 75

unbalanced mode

BBU Module --- UELP Board


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UFLP:The universal FE lightning protection (UFLP) board is optionally installed in the

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

BBU Module --- UFLP Board

IPCable Connection.

Transmission Equipment

LAN switch or Router


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Logical Structure of the RRU/SRXU

Interfacemo

dule

MTRX

Power

module

Duplexer

Extension

interface

TX signaling

Processing

unit

SRXU

RX signaling

Processing

unit

LNA

PA

LNA

RX signaling

Processingunit

BBU

LNA

LNA

RRU TX1RX1

RX2

RX3

RX4

Antenna system

Antenna system

CPRI


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RRU3804 Characteristics

Support 12dB, 24dB gain TMA

RTWP statistic and report

Standing wave detect and report

Support ASIG (Antenna Interface Standards Group) 2.0

Receiver reference sensitivity typical value -125.5dBm

RRU3804 connected to the SRXU supports 4-way RX diversity

Number of carrier Output Power per Carrier (W)

1 60

2 30

3 20

4 15


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Appearance and Specification of RRU3804/3801E

Item RRU3804/3801E

Dimensionwith

the housing

RRU3804520mm (H) x 280mm (W) x155mm(D)

Weight RRU3804 module :15KG

the RRU3804 module and its h ousin g:16KG

Power input -48V DC Allo wed vol tage range -36

V DC to -57 V DC

maximum power

consumption

275W

SectorCarrier 14(RRU3804) / 12(RRU3801E)

Appearance of the

RRU3804

NOTES:

The RRU3801E appearance (Panel and Ports) is the same

with the RRU3804;


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Panel and Port of RRU3804/3801E

Interconn ection port

between com bined

cabinets

Port for RET antenna

/Power ou tput to the

SRXUMain TX/RX diversity

port

Port for RX

diversity

CPRI Optical ports

Indicators

Power supply

ports

Grounding bol t

A larm

port

Panel of the RRU3804

Ports of th e RRU3804


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LEDs on RRU3804/RRU3801E-I


RUN Green ON The module has pow er input , yet the modu le is faulty

OFF The mo dule has no power input or is report ing alarms

1s on, 1s off The modu le is operat ional

0.5s on, 0.5s off Software is being loaded to the mo dule

ALM Red ON The modu le is report ing alarms (excluding VSWR-

related alarms

OFF The modu le is operat ional

TX_ACT Green ON The module is runn ing

OFF No specif ic meaning


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LEDs on RRU3804/RRU3801E--II


VSWR Red ON VSWR-related alarm s are reported

OFF No VSWP-related alarm is report ed

CPRI_W Red/gr

een

ON (green) The CPRI l ink is n orm al

ON (red) The opt ical mod ule receives loc al alarms related to LOS

0.5s ON, 0.5s OFF

(red)

The CPRI is out of loc k

OFF The opt ical mod ule is not in posit ion o r is pow ered of f

CPRI_E Red/gr

een

ON (green) The CPRI l ink is n orm al

ON (red) The opt ical mod ule receives loc al alarms related to LOS

0.5s ON, 0.5s OFF

(red)

The CPRI is out of loc k

OFF The opt ical mod ule is not in posit ion o r is pow ered off


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Appearance and Specification of SRXU

Item SRXU

Dimension

with the

housing

SRXU270mm(W) x 60mm (D) x 480mm(H)

Weight The weight o f the SRXU:6KG

Power input -48V

DC

Allo wed voltage range -36 V DC to -57 V DC

maximum

power

consumption

30W

Appearance of the SRXU


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Panels and Ports of the SRXU

I nterconnection port

between combined

cabinets

Socket f or power supply

Power I nput Fr om RRU

Port for RET antenna

Port for RX diversity

Port for RX diversity

CPRI Optical ports

Grounding bolt

Indicators

Panel of the SRXU

Ports o f the SRXU


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RRU Configurations

The RRU is divided into two types according to output power and carries:

40 W RRU3801E, 40W output power on the top of cabinet

60 W RRU3804, 60W output power on the top of cabinet

RRU typeFrequency

bandReceiving Band Transmitting Band Carriers

RRU3804 UMTS2100 1920MHz1980MHz 2110MHz2170MHz 4

RRU3801E UMTS2100 1920MHz1980MHz 2110MHz2170MHz 2



RRU3804 UMTS1.7/2.1G 1710MHz1755 MHz 2110 MHz2155 MHz 4



RRU3801C UMTS1800 1710MHz1785MHz 1805MHz1880MHz 2

RRU3801C UMTS900 880MHz915 MHz 925MHz960MHz 2


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Connections of the BBU3900 Cables


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Cables --- Power Cable of the BBU3900

This describes the power cable. Either -48 V power cable or +24 V power cable

can be used, depending on the power input.

Appearance : The power cable has a 3V3 connector at one end and bare wires

at the other end. Appropriate terminals are added to the bare end on site.

1) 3V3 connecter 2) OT terminals


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Cables --- Transmission Cable of BBU3900

E1 Cable

FE Surge Protection Transfer CableE1 Surge Protection Transfer Cable

FE Cable


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Cables --- Power Cable of the RRU3804

The RRU uses a shielded -48 V DC power cable. The cable feeds

external -48 V DC power to the RRU.

Appearance : The cable has two OT terminals at one end and bare

wire at the other end, The OT terminals need to be added on site.

Installation Position


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Cables --- Power Cable of the SRXU

The SRXU uses a shielded DC power cable. The cable feeds power

from the RRU to the SRXU.

Appearance : The cable has a waterproof DB9 connector at each end

Installation Position: One end of the DC power cable is connected to

the RET/PWR_SRXU port at the bottom of the RRU, and the other

end is connected to the PWR_SRXU socket at the bottom of the SRXU.


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BBU3900

Cables --- Optical Cable of RRU3804/SRXU

1) DLC connector 2) Label on the fiber tail 3) Fiber tail

BBU3900-RRU3804/SRXU CPRI Optical Cable

The CPRI optical cable transmits CPRI signals:

between BBU3900 and RRU3801E

between BBU3900 and RRU3804

between RRU3804 and SRXU

The CPRI optical cable is a multi-mode 2-wire

cable with DLC connectors at both ends

BBU and RRU CPRI hardware connection is

same between RRU3801E and RRU3804


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AISG Multi-Wire Cables of RRU3804/SRXU

The five-meter-long AISG multi-wire cable connects the RRU3804/SRXU

to the Remote Control Unit (RCU). If both RRU3804 and SRXU are installed,the AISG multi-wire cable only connects the SRXU and the RCU. This

cable is opt ion al

One end of the AISG multi-wire cable is a waterproof DB9 connector, and

the other end is a standard AISG female connector

AISG Extension Cable of the RRU3804/SRXUOptional


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AISG Extension Cable of the RRU3804/SRXU Optional

Cables

When the distance between the RCU and the RRU3804/SRXU is longer

than 5 m, the AISG multi-wire cable is not long enough to cover the distanceand the AISG extension cable is used. The AISG extension cable is 15 m

long

One end of the AISG extension cable is a standard AISG male connector,

and the other end is a standard AISG female connector


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RF Jumper of the RRU3804/SRXU

Waterproofed Joints

The RF jumper of the RRU3804/SRXU is of two types

Antenna jumper: transmits and receives RF signals. Both

ends of the antenna jumper have DIN connectors

Interconnect jumper: transmits RF signals between

two RRU3804s/SRXUs.

The interconnect jumper is optional, depending on the

site configuration. The interconnect jumper is 2 m

long, and both ends have 2W2 connectors

The 2W2 connectors at the two ends of the

interconnect jumper are linked to the ports labeled

RX_IN/OUT on two RRU3804s/SRXUs respectively

RF Jumper Connections of the RRU


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RF Jumper Connections of the RRU


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Cable Connections of one RRU3804

BBU3900


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Cable Connections of one RRU3804 /SRXU

BBU3900


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Cable Connections of Multiple RRU3804s

Optical cable

Power cableBBU3900


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Cable Connections of Multiple RRU3804s/SRXUs

Optical cablePower cable

Power cable


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Typical Architectures of Antenna System

(1) Directional

antenna

(2) Pole (3) Outdoor

jumper

(4) Outdoor

cable rack

(5) Feeder

clip

(6) Feeder

grounding kit

(7) Outdoor

grounding bar

(8) To outdoor

lightning

protection

ground

(9) Feeder

window

(10) Cable tie (11) indoor

jumper

(12) Indoor

cable rack

(13) Feeder

Scenar io1:BBU and RRU indoo r

+ Roof stat ion


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(1) Lightning rod (2) Pole (3) TMA

(4) Directionalantenna

(5)Waterproof

curve

(6) Feedergrounding clip

(7) Feeder (8) Outdoor

cable rack

(9) Feeder

window

(10) Outdoor

grounding bar

(11) Tower

groundingconductor

(12) Cable tie

(13) Guard rail

Scenar io2:BBU and RRU indoo r

+ Tow er Station


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Scenar io3:RRU Closed to th e An tenna


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BBU Networking


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BBU Networking

BBUs and RNC can form multiple

networking modes such as star, chain,

t ree, and hybr idBBUBB

U

BB

U

ChainNetworking mode

StarNetworking mode

BBU

BBU

BBURNC

BBURNC

BBU

BBU

BBU

TreeNetworking mode

For both chain and tree networking modes

cascading levels is less than 5


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RRU Networking

BBUs and RRUs can form multiple networking modes such as star,chain, tree, ring, and hybrid

For both chain and tree networking modes:




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Typical Configuration11

Applied to wide areas and indoor cir cumstances

BBU3900

RRU


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Typical Configuration21Appli ed to long stretched areas

BBU3900

RRU


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Typical Configuration31/32

Appl ied to cit ies or other high capacity areas

BBU3900

RRU

RRU

RRU

High capacity areascities


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Typical Configuration

configuration Number of

WBBPs

Number of RRU3804s (No

TX Diversity)

Number of RRU3801Es

(No TX Diversity)

3 x 1 1 3 3

3 x 2 2 3 3

3 x 3 3 3 6

3 x 4 4 3 6


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wcdma dbs3900 system hardware structure

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