HUAWEI BTS3012 Hardware Structure pdf

BTS3012 Cabinet and Boards for 12TRXsDTMU Transmission & Timing & Management Unit for DTRU BTS DMLC Monitor Signal Lightning-Protection Card for DTRU BTS DELC E1 Signal Lightning-Protect

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

 Know the functions and features of BTS

 Master the BTS hardware structure

 Master the cable connection of BTS

 BTS3012 Technical Manual

 BTS3012 Installation Manual

 BTS3012 User Manual

Chapter 1 Overview Chapter 2 System Components Chapter 3 Signal Processing Chapter 4 Typical configuration

MS: Mobile Station BTS: Base Transceiver Station BSC: Base Station Controller HLR: Home Location Register AUC: Authentication Center EIR: Equipment Identity Register MSC: Mobile Switching Center VLR: Visitor Location Register SMC: Short Message Center VM: Voice Mailbox OMC: Operation and Maintenance Center

PSTN ISDN PSPDN

MS

MS

Features and Functions (for 12TRXs)

 Support GSM800M 、 850M 、 900M 、 1800M 、 1900M

 Support networking topology includes star, tree, chain and ring

 Support A5/1 and A5/2 encryption/decryption

 Support GPRS and EDGE

 Support dynamic and static power control

 Support the omni-directional coverage and directional coverage

Features and Functions (for 12TRXs)

 Double Transceiver Unit (DTRU) A single cabinet can support up to 12 carriers It can smoothly evolve into WCDMA

 Transmit diversity, 4-receive diversity

 Support Power Boost Technology (PBT)

 BTS3012 can share cabinet with WCDMA base station The module of WCDMA base station can be inserted in the BTS3012 cabinet

 Support more various transmission mode includes E1, STM-1, microwave, and satellite transmission

 The DTRU of the BTS3012 can be inserted into BTS30/BTS312 with -48V DC power supply

Features and Functions (BTS3012 - for 18TRXs) Ⅱ

 One cabinet can hold up to 18 TRXs and multiple cabinets can hold up to 54 TRXs

 Power Boost Technology (PBT): The maximum output power of the TRX can reach up to 100 W

 The static sensitivity of the TCH/FS is -112.5 dBm (typical value in normal temperature)

 Transmit diversity and four-way receive diversity

 Baseband frequency hopping and RF frequency hopping

 Multiple transmission modes: E1, T1, STM-1, microwave, and satellite transmission

 Multiple frequency bands: 850MHz, 900MHz, 1800MHz, and 1900MHz The cabinet can meet the deployment requirements in different regions

Features and Functions (for 36TRXs)

 Holds up to 36 TRXs per cabinet.

 Supports the Hub BTS function.

 Supports soft synchronization on the Um interface.

 Supports rapid switchover of the ring topology.

 Supports Flex Abis networking.

 Supports optimized Abis transmission.

 Supports local switching.

 Supports Abis over IP.

 Supports clock over IP.

 The static sensitivity of the TCH/FS is -113 dBm (typical value in normal temperature).

 Supports various transmission modes: E1, FE, T1, STM-1, microwave, and satellite transmission.

 Supports the 900 MHz frequency band.

Chapter 1 Overview Chapter 2 System Components Chapter 3 Signal Processing Chapter 4 Typical configuration

Hardware structure (for 12TRXs)

Metro 100 DTMU

DEMU E1

Hardware structure (for 18TRXs)

Hardware structure (for 36TRXs)

BTS3012 Cabinet and Boards (for 12TRXs)

D D D D

Wiring

D D P U

D C O M

D C O M

D D P U

D C O M

D T R U

D T R U

D T R U

D T R U

D T R U

D T R U

Wiring FAN Air Inlet

M L

EMC

D D P U

E L C

E L C

S A C

D T M

D T M

D E M

D C C

D C S

D A T

BTS3012 Cabinet and Boards (for 18TRXs & for 36TRXs )

For 18

TRXs

For 36 TRXs

BTS3012 Cabinet and Boards (for 12TRXs)

DTMU Transmission & Timing & Management Unit for DTRU BTS

DMLC Monitor Signal Lightning-Protection Card for DTRU BTS

DELC E1 Signal Lightning-Protection Card for DTRU BTS

BTS3012 Cabinet and Boards (for 18TRXs)

Cabinet Full

Configuration

Minimum Configuration

Common subrack

DTMU Transmission/Timing/Management Unit for DTRU BTS 2 1

DEMU Environment Monitoring Unit for DTRU BTS 1 0

DATU Antenna and TMA Control Unit for DTRU BTS 2 0

DCSU Combined cabinet Signal connection Unit for DTRU BTS 1 1

DCCU Cable Connection Unit for DTRU BTS 1 1

ECMB Enhanced Common Module Backplane for DTRU BTS 1 1

Set-on-top

subrack

DELC E1 Signal Lightning-Protection Card for DTRU BTS 3 1

DMLC Monitor Signal Lightning-Protection Card for DTRU BTS 1 0

DSAC Signal Access Card for DTRU BTS 1 1

DCTB Cabinet Top Backplane for DTRU BTS 1 1

DTRU subrack DTRU Double-Transceiver Unit 9 1

DTRB Double-Transceiver Unit Backplane 1 1

DAFU subrack

DCOM Combining Unit for DTRU BTS 3 0

DDPU Dual-Duplexer Unit for DTRU BTS 6 0

DFCU Filter Combiner Unit for DTRU BTS 3 0

DFCB Filter Combiner Unit for DTRU BTS 1 0

BTS3012 Cabinet and Boards (for 36TRXs)

Full Configuration Configuration In Minimum

Common

subrack

DTMU Transmission/Timing/Management Unit for DTRU BTS 2 1

DEMU Environment Monitoring Unit for DTRU BTS 1 0

DATU Antenna and TMA Control Unit for DTRU BTS 2 0

DPTU Packet Transmission Unit 2 0

DABB Abis Bypass Board for DTRU BTS 1 0

DCSU Combined cabinet Signal connection Unit for DTRU BTS 1 1

DCCU Cable Connection Unit for DTRU BTS 1 1

DCMB Common Module Backplane for DTRU BTS 1 1

Set-on-top

subrack

DELC E1 Signal Lightning-Protection Card for DTRU BTS 3 1

DMLC Monitor Signal Lightning-Protection Card for DTRU BTS 1 0

DSAC Signal Access Card for DTRU BTS 1 1

DCTB Cabinet Top Backplane for DTRU BTS 1 1

DTRB Double-Transceiver Unit Backplane 1 1DAFU subrack DDPU Dual-Duplexer Unit for DTRU BTS 3 1

Common Subsystem

 DTMU Transmission/Timing/Management Unit for DTRU BTS

 DEMU Environment Monitoring Unit for DTRU BTS

 DCSU Combined cabinet Signal connection Unit for DTRU BTS

 DCCU Cable Connection Unit for DTRU BTS

 DATU Antenna and TMA control Unit for DTRU BTS

 DPTU Packet Transmission Unit (For 36 TRXs)

 DABB Abis Bypass Board for DTRU BTS (For 36 TRXs)

Comparison of Component Boards

For 12 TRXs For 18 TRXs For 36 TRXs

Component

Boards of

Common

Subsystem

DABB

Functions of DTMU

 Provides external GPS inputs

 Provides BITS synchronized clock inputs

 Provides data backup between the active and standby boards

 Provides the 10 Mbit/s Ethernet port for maintenance

 Supports four E1 inputs by default or eight E1 inputs if required

 Controls, maintains, and operates the BTS

 Downloads software for the BTS

 Provides fault management, configuration management, performance management, and security management

 Provides centralized clock distribution and management of the entire BTS, and the hot backup of the clock unit

 Provides backup for the E1 ports and the main control unit

 Provides eight digital alarm inputs, two of them being lightning arrester failure alarm inputs

 Provides four extended digital control signal outputs

 Monitors the external fan control board and the power modules

Structure of DTMU

MCK

OML

DBUS CBUS2

Abis

External synchronized clock and clock Subrack number

LEDs on the DTMU panel

RUNACTPLLLIU1LIU2LIU3LIU4SWTALMRSTMMI

T2MFCLKT13M

DTMU

RUN Green Operating

indicator of the board

Slow flash (on for 2s and off for 2s)

The OML is blocked

Slow flash (on for 1s and off for 1s) NormalFast flash at unfixed

intervals The BSC is loading data.

Off There is no power input for the board

ACT Green Active/stand

by status indicator

Off Standby board

On Active board

PLL Green Clock status

indicator Off The clock is abnormal.

On Free-runFast flash (on for 0.125s

and off for 0.125s)

Pull-in

Fast flash (on for 0.5s and off for 0.5s) LockedLIU1 Green Transmissio

n status indicator of E1 port 1 or port 5

Off E1 port 1 is normal when SWT is off

E1 port 5 is normal when SWT is on

On E1 port 1 near end alarm occurs when SWT is off

E1 port 5 near end alarm occurs when SWT is on

Fast flash (on for 0.125s and off for 0.125s) E1 port 1 remote end alarm occurs when SWT is off

LEDs on the DTMU panel

RUNACTPLLLIU1LIU2LIU3LIU4SWTALM

LED Color Description Status Meaning

LIU2 Green Transmission

status indicator of E1 port 2 or port 6

Off E1 port 2 is normal when SWT is off

E1 port 6 is normal when SWT is on

On E1 port 2 near end alarm occurs when SWT is off

E1 port 6 near end alarm occurs when SWT is on

Fast flash (on for 0.125s and off for 0.125s) E1 port 2 remote end alarm occurs when SWT is off.

E1 port 6 remote end alarm occurs when SWT is on

LIU3 Green Transmission

status indicator of E1 port 3 or port 7

Off E1 port 3 is normal when SWT is off

E1 port 7 is normal when SWT is on

On E1 port 3 near end alarm occurs when SWT is off

E1 port 7 near end alarm occurs when SWT is on

Fast flash (on for 0.125s and off for 0.125s) E1 port 3 remote end alarm occurs when SWT is off.

E1 port 7 remote end alarm occurs when SWT is on

LIU4 Green Transmission

status indicator of E1 port 4 or port 8

Off E1 port 4 is normal when SWT is off

E1 port 8 is normal when SWT is on

On E1 port 4 near end alarm occurs when SWT is off

E1 port 8 near end alarm occurs when SWT is on

Fast flash (on for 0.125s and off for 0.125s) E1 port 4 remote end alarm occurs when SWT is off.

E1 port 8 remote end alarm occurs when SWT is on

SWT Green Indicates the

transmission status of E1 links

When the DTMU supports eight E1 routes, the SWT status is slow flash (on for 10s and off for 10s)

When the SWT is off, LIU1 to LIU4 indicate the transmission status of E1 port 1 to 4

When the SWT is on, LIU1 to LIU4 indicate the

Ports on the DTMU panel

T2M SMA female connector 2 MHz reference clock, used to test

and tune clock precision FCLK SMA female connector 216.7 Hz frame clock

T13M SMA female connector 13 MHz reference clock, used to

test and tune clock precision MMI RJ45 connector Terminal maintenance port

Functions of DEMU

 The DEMU guarantees the normal operation of the BTS by monitoring the surrounding environment.

 The DEMU performs the following functions:

 Monitors the environment information sent from the smoke sensor, water sensor, temperature and humidity sensor, infrared sensor, and door control sensor

 Collects alarm information and reports it to the DTMU

 Provides 6 Boolean value outputs and 32 Boolean value inputs

Functions of DCSU

 The Combined cabinet Signal connection Unit for DTRU BTS (DCSU) is placed in slot 5 of the common subrack The DCSU is a mandatory

board Only one DCSU can be configured

 The DCSU performs the following functions:

 Transmits clock signals, data signals, and control signals between the main cabinet and the extension cabinet

 Transmits the clock signals, data signals, and control signals from the DTMU to the DTRU ( for BTS3012 ) or QTRUs ( for 36TRXs) Ⅱ

 Transmits the in-position signals of the DCOM, DDPU, or DFCU in the DAFU subrack to the DCMB ( for BTS3012 ) Ⅱ

 Transmits the in-position signals of the DDPU located in the DAFU subrack to the DCMB ( for 36TRXs)

Ports on the DCSU panel

CC_IN CC_OUT

connector Connects with the RF cable when the cabinet serves as the main cabinet and connects with the cable for

combined cabinets when the cabinet serves as the extension cabinet

GM51DCSU VERB SW6

SW9

SW14 SW13 SW12

SW7 SW10 SW8

SW5 SW4 SW3

SW11 SW2

SW1

Switches of DCSU (for 12TRXs)

Switches of DCSU (for 18TRXs)

Switches of DCSU (for 36TRXs)

Functions of DCCU

 The DCCU is placed in slot 6 of the DCMB in the common

subrack The DCCU is a mandatory board Only one DCCU can

be configured.

 The DCCU performs the following functions:

 Transfers E1 signals

 Transfers the control signals

for the fans

 Transfers the clock signals

from the DAFU subrack

 Processes the power inputs

through the EMI filter, and

then transmits the power to

the common subrack.

Ports on the DCCU panel

Functions of DATU

 The DATU can be installed in slot 2, 3, 4, or 7 of the DCMB in the common subrack The DATU is an

optional board A maximum of two DATUs can be configured

 The DATU performs the following functions:

 Controls the RET antenna

 Provides power for the TMA over the feeder

 Reports alarms related to the control of the RET

antenna

 Monitors the current from the feeder.

DATU

RUN ACT ALM

ANT0 ANT1 ANT2 ANT3 ANT4 ANT5

Functions of ECMB (for 18TRXs)

 The ECMB is the backplane for the common subrack and DTRU subrack 0 The ECMB is a mandatory board There are 10 slots on the ECMB

 The ECMB provides power and signal circuits for the boards in the common

subrack and DTRU subrack 0 The ECMB transmits signals from the boards in the common subrack to the DCCU The ports on the DCCU then transmit the signals to the boards in other subracks The ECMB transmits the in-position signals of the DTRUs in DTRU subrack 0 to the DTMU

 The ECMB performs the following functions:

 Provides signal circuits for connecting the boards in the common subrack

 Provides –48 V power circuits for the boards in the common subrack

 Provides bus connection between the common subsystem and the

double-transceiver subsystem

 Specifies the slot number and rack number of the DTRUs in DTRU subrack 0

 Transmits the in-position signals of the DTRUs in DTRU subrack 0 to the

DCCU

Functions of DPTU (for 36TRXs)

 The DPTU is packet transmission unit The DPTU is mandatory A maximum of two DPTUs can be configured The DPTU can

be installed in slot 3 or 4 (from left to right) in the common subrack You can configure two DPTUs in active/standby mode When the DABB is configured, the DPTU cannot be configured.

 The DPTU performs the following functions:

 Provides the interface for Abis over IP.

 Provides the BTS with the convergence function of a Hub.

 Provides the functionality of Clock Over IP.

 Provides the functionality of transmission QoS.

Working Environment of the DPTU (for 36 TRXs)

 Working Environment of the DPTU in the BTS3012

 The DPTU accesses external E1 signals.

 The DPTU transmits E1 signals for the DTMU

 Working Environment of the DPTU with Transmission Over IP

 The DPTU accesses the transmission network through the

FE signal cable

 The DPTU transmits E1 signals through the BUS E1 cable.

 The DPTU transmits and converges signals for the

lower-level BTS through E1 cable

Working Environment of the DPTU (for 36 TRXs)

 Working Environment of the DPTU with HubBTS

 The DPTU transmits E1 signals for the BTS main cabinet group through BUS E1cable, and transmits E1 signals for the BTS

extension cabinet group through E1 cable.

 The DPTU enables the BTS to be connected to the BSC in the form

of HDLC Over E1 or IP Over FE.

 The DPTU enables the lower-level BTSs to be connected in the form of HDLC Over E1

Working Environment of the DPTU (for 36 TRXs)

LEDs on the DPTU panel

indicator of the board

but the board is faulty.

or the board is faulty.

Slow flash (on for 1s and off for 1s)

The board is operational.

Slow flash (on for 2s and off for 2s) The board is being tested. Fast flash (on for

0.125s and off for 0.125s)

The board is loading software.

by status indicator

Ports on the DPTU panel

BSC so that 100 Mbit/s signals can be transmitted and received.

Functions of DABB (for 36TRXs)

 The DABB is the bypass board for E1 signals It is an optional board Only one DABB can be configured When the DABB is configured, the DPTU cannot be configured

 The functions of the DABB include:

 Bypass Function

− In chain topology, when the BTS where the DABB is located is power off, the DABB can immediately set up the connection between BTSs Thus, the services will not be disrupted In chain topology, the BSC can identify the transmission disruption and BTS power failure.