HUAWEI BTS 3012 Features and Functions: o Support GSM 800M、850M、900M、1800M、1900M o Support networking topology includes star, tree, chain and ring o Support A5/1 and A5/2 encryption/decryptiono Support GPRS and EDGEo Support dynamic and static power controlo Support the omni-directional coverage and directional coverageo Double Transceiver Unit (DTRU). A single cabinet can support up to 12 carriers. It can

smoothly evolve into WCDMAo Transmit diversity, 4-receive diversity o Support Power Boost Technology (PBT) o BTS3012 can share cabinet with WCDMA base station. The module of WCDMA base

station can be inserted in the BTS3012 cabinet o Support more various transmission mode includes E1, STM-1, microwave, and

satellite transmission o The DTRU of the BTS3012 can be inserted into BTS30/BTS312 with -48V DC power

supply

Cabinet and Boards:

D D D D

Wiring & Air Inlet

Wiring

DDPU

DCOM

DCOM

DDPU

DCOM

DTRU

DTRU

DTRU

DTRU

DTRU

DTRU

Wiring

FAN

Air Inlet

MLC

Power and EMC

Transmission Unit

DDPU

ELC

ELC

SAC

Transmission Unit

DTMU

DTMU

DEMU

DC

CU

DC

SU

DAT

U

common

DTRU

DAFU

Hardware structure:

Common Subsystem: o DTMU Transmission timing& management unit for DTRU BTSo DEMU Environment Monitoring Unit for DTRU BTSo DCSU Combined cabinet Signal connection Unit for DTRU BTSo DCCU Cable Connection Unit for DTRU BTSo DATU Antenna and TMA control unit for DTRU BTS

TMATMA

DTRU DAFU

Antenna and feeder subsystem

Forepart of RFSubsystem

TMA TMA

DTRU DAFU

TMATMA

DTRU DAFU

Double transceiver subsystem

DATU

Um Interface

DATU

fiber

E1

Abis Interface

DELC

Common subsystem

NFCB

Metro 100

DTMU

DEMU

E1

BITSMonitor TBUS/DBUS/CBUS

MS

FH_BUS

Extension cabinet

BTS 3012 - Diagram

DTMU:o Providing the external GPS input, the BITS synchronized clock inputo Providing 4-route or 8-route E1 input，backup between the active and standby

boardso Providing local MMI maintenance of the 10 M network porto Controlling, maintaining, and operating the BTSo Providing fault management, configuration management, performance management,

and security managemento Supporting 8-route digital alarm input. Two routes are lightning arrester failure alarm

detection Structure:

Indicators: Indicator Color Description Status Meaning

RUN Green

Indicates operation

Slow flash (0.25 Hz)

OML is blocked

Slow flash (0.5 Hz) Normal

Fast flash at uncertain intervals

BSC data loading

Off Power failure of the board

ACT Green

Indicates whether the board is active or standby

Off Standby

On Active

PLL Green

Indicates the clock status

Off Abnormal

On Free-run

Fast flash (4 Hz) Pull-in

Fast flash (1 Hz) Lock

LIU1 Green

Indicates the transmission status of E1 port 1 and port 5

Off E1 port 1 is normal when SWT is out E1 port 5 is normal when SWT is on

On E1 port 1 near end alarm occurs when SWT is out E1 port 5 near end alarm occurs when SWT is on

Fast flash (4 Hz) E1 port 1 remote end alarm occurs when SWT is out E1 port 5 remote end alarm occurs when SWT is on

Indicator Color Description Status Meaning

MCK

OMLDBUS

CBUS

Clock

BIU DTRU

DTMU

BSC

MCUMMILMT

Abis

Externalsynchronizedclock

RUN

ACT

PLL

LIU1

LIU2

LIU3

LIU4

SWT

ALM

RST

MMI

T2M

FCLK

T13M

DTMU

LIU2 Green

Indicates the transmission status of E1 port 2 and port 6

Off E1 port 2 is normal when SWT is out E1 port 6 is normal when SWT is on

On E1 port 2 near end alarm occurs when SWT is out E1 port 6 near end alarm occurs when SWT is on

Fast flash (4 Hz) E1 port 2 remote end alarm occurs when SWT is out E1 port 6 remote end alarm occurs when SWT is on

LIU3 Green

Indicates the transmission status of E1 port 3 and port 7

Off E1 port 3 is normal when SWT is out E1 port 7 is normal when SWT is on

On E1 port 3 near end alarm occurs when SWT is out E1 port 7 near end alarm occurs when SWT is on

Fast flash (4 Hz) E1 port 3 remote end alarm occurs when SWT is out E1 port 7 remote end alarm occurs when SWT is on

LIU4 Green

Indicates the transmission status of E1 port 4 and port 8

Off E1 port 4 is normal when SWT is out E1 port 8 is normal when SWT is on

On E1 port 4 near end alarm occurs when SWT is out E1 port 8 near end alarm occurs when SWT is on

Fast flash (4 Hz) E1 port 4 remote end alarm occurs when SWT is out E1 port 8 remote end alarm occurs when SWT is on

SWT GreenIndicates handover status of E1

Off LIU1 to LIU4 indicate the transmission status of E1 port 1 to 4.

On LIU1 to LIU4 indicate the transmission status of E1 port 5 to 8.

ALM Red Alarm indicators

Off No hardware alarm

On Hardware alarm

DEMU:

DCSU:

CC_IN

CC_OUT

TO_DTRB

TOP2

DCSU

o Interfaces:

The DEMU is placed in slots 2 to 4 and slot 7 of the common subrack with the DATU. The DEMU is an optional module. There is maximum one DEMU under full configuration.

Monitoring variations in the smoke, water, temperature, humidity, infrared, and access control ,Handling alarms

Guaranteeing normal operation of the equipment

DMLC DEMUCBUSMonitor signal

The Combined Cabinet Signal Connection Unit for DTRU BTS (DCSU) is placed in slot 5 of the common subrack, which is located in the lower part of the cabinet. There is only one DCSU and it is mandatory

The DCSU transfers signals for the combined cabinet and cabinet group between the common subrack and the cabinet top subrack

DCMB

DTMU

DCSUDTRB

DCTB

DCCU

DEMU

DATU

DCCU:

POWER

DCCU

To_FAN

TO_TOP1

TRAN

o Interfaces:

Silk-Screen Type Description

TRAN MD64 (female) For E1 signal input

To_FAN DB26 (female) Connects to the fan panel through cables

TO_TOP1 MD64 (female) Connects to the cabinet top subrack through cables

POWER 3V3 For power input of the common unit

DATU: o The DATU is placed in slots 2 to 4 and slot 7 of the common subracko with the DEMU. It is optional and there are maximum two DATUso Transmitting the remote electrical tilt unit (RET) control signals

The DCCU is placed in slot 6 of the common subrack. There is only one DCCU and it is mandatory

Converting the input and output signals of the common subrack.

Inputting the power of the common subrack

DCMB

DTMU

DCCUNFCB

DCTB

DCSU

DEMU

DATU

DATU

RUN

ACT

ALM

ANT0

ANT1

ANT2

ANT3

ANT4

ANT5

o Feeding the TMAo Communicating with the DTMU through CBUS for control and alarm report

Cabinet Top Access Subsystem: DMLC (Monitor Signal Lightning-Protection Card for DTRU BTS) DELC (E1 Signal Lightning-Protection Card for DTRU BTS) DSAC (Signal Access Card for DTRU BTS)

DMLC: o The DMLC is placed in slots 0 to 2 of the cabinet top subrack with the DELC. There is

only one DMLC and it is optional DMLCo Smoke/water/access control/infrared/humidity/temperature sensor signal input

DELC: The DELC is placed in slots 0 to 2 of the cabinet top subrack with the DMLC The DELC is mandatory and there is one DELC under minimum configuration Without the DMLC, there are maximum three DELCs, supporting up to 12 routes of

protected E1 signals

DSAC: The DSAC is placed in slot 3 of the cabinet top subrack. There is only one DSAC and it

is mandatory Two-route input of lightning protection arrester failure alarm Access protection of BITS clock input

D

M

L

C

D

E

L

C

D

E

L

C

D

S

A

C

DC

F

CK

B2

CK

B1

DSAC

CO

M1

EA

CS

YN

CC

OM

2S

1+

S1

-S2

+S

2-

SWIN

SWOUT

DMLC

AIN

DELC

TR

Double transceiver subsystem: DTRB >>> Backplane DTRU（Double Transceiver Unit）

DTRB: o The DTRB is placed in the DTRU subrack. It has six slots, each holding one DTRU o The DTRB provides connections between the DCSU and the DTRU. All the onsite

signals are provided to the DCSU through the DTRB

DTRU :

DTRU

TX1

IN1

TCOM

IN2

TX2

RST

RUN

ACT

ALM

RF_IND

PWR

RXM1

RXD1

RXM2

RXD2

Indicator Color Description Status Meaning

RUN Green

Indicates the running and power-on of the DTRU

On There is power supply or the board is faulty.

Off There is no power supply and the board is faulty.

Slow flash (0.25 Hz) The board is starting.

Slow flash (0.5 Hz) The board is running.

Fast flash (2.5 Hz) The DTMU is sending configuraiton parameters to the DTRU.

ACT Green

Indicates the TRX is working

On The board is running (the DTMU sends configuration parameters to the DTRU correctly and the cell is starting). All the channels on the two carriers can work normally.

Off Communication between DTRU and DTMU is not set up

Slow flash (0.5Hz) Only parts of the logic channels are working normally (including after TRX mutual aid).

ALM RedIndicates alarm

On (including high-frequency flash)

Critical alarm occurs to the board.

Off The board is normal.

RF_IND Red

RF interface indicators

On Standing wave alarm

Off Normal

Slow flash (0.5 Hz) RL alarm

DTRB

DTRUDTRUDTRUDTRUDTRUDTRU

Front-End of the RF Subsystem: DDPU (Dual Duplexer Unit for DTRU BTS) DCOM (Combining Unit for DTRU BTS)

DDPU: o The DDPU is intermixed with the DCOM in the DAFU subrack of the forepart of RF subsystem. It is

indispensable. Generally, the number of DDPU is one at least and three at most. Without the DCOM, there can be at most six DDPUs

o Sending multi RF signals from the transceiver in the DTRU to the antenna through the duplexer,(DL)o Sending signals from the antenna after amplifying them to the transceiver in the DTRU, (UL)o Detecting standing wave alarms in the Antenna Feeder system

RUNALM

VSWRA

RXA1

RXA2

RXA3

RXA4

RXB1

RXB2

RXB3

RXB4

DDPU

TXA

TXB

COM

POWER

VSWRB

ANTAANTB

NBBI

D

C

O

M

D

D

P

U

D

C

O

M

D

D

P

U

D

C

O

M

D

D

P

U

1 2 3 4 50

DCOM: The DCOM is placed in the DAFU subrack with the DDPU The DCOM is optional and there are a maximum three DCOMs.

The DTRU combines two carriers into one channel. The DCOM is required when the DTRUs are insufficent

The DCOM combines the 2-route DTRU transmission signals and outputs them to the DDPU (4 carriers)

Interface Type Description

ONSHELL DB26 (female) For indentification of the board type of DCOM and on-site status

TX—COM N (male) Output of combining signals from the DCOM to DDPU

TX1 N (male) TX signal input from the DTRU to DCOM

TX2 N (male) TX signal input from the DTRU to DCOM

FAN BOX: The FAN BOX forms a loop with the air inlet box to provide forced ventilation and

dissipation for the common subrack, the DTRU subrack, and the DAFU subrack The FAN Box is mandatory with four independent axial flow fans. The fans' speed and

running status are controlled by the Fan Controlling and Monitoring Board

Indicator Color Status Meaning

STATE Green Fast flash (4 Hz) Communication between the NFCB and the DTMU is abnormal. There is no alarm

Red Fast flash (4 Hz) Alarm occurs to the board

Green Slow flash (0.5 Hz) The board is running normally

Orange (red and green)

On The board software is being upgraded

Green or red or orange

Off There is no power supply and the board is faulty

FANSTATE

COMPWR

DCOM

TX-COM

TX2

TX1

ONSHELL

System Signal Flow: o DL Signal Flow Steps:

The DTMU receives the service data from the BSC, exchanges and processes it, and then transfers it to the DTRUThe DTRU performs digital filtering, up conversion, and filter amplification of the signals and sends the signals to the DDPUThe duplexer in the DDPU filters the signals sent from the DTRU and transmits the signals through antennas and feeders

o UL Signal Flow Steps: The antenna receives the signals transmitted from the MS. After being amplified by the TMA, the signals are transmitted to the DDPU through the feeder. The TMA is optional. It is used to compensate the feeder loss and enhance receiver sensitivity of the DDPU antenna portThe DDPU receives the signals and transmits the signals to the DTRU after they are filtered by the duplexer and amplified by the LNAThe DTRU receives the signals and transmits the signals to the DTMU after amplification and down conversion. The DTMU then transmits the signals to the BSC through the Abis interface

DL Signal Flow

DDPU

Um

BSCBTS3012 Cabinet

MSAntennaFeeder

Abis

DTRU

DTMU

UL Signal Flow

DAFU

Um

BSCBTS3012 Cabinet

MSAntennaFeeder

Abis

DTRU

DTMU

Antenna Feeder subsystem: Types of Main Feeder:

o 7/8 inch Cable loss=0.043dB/m

o 5/4 inch Cable loss=0.032dB/m

o 1/2 inch jumper Cable loss=0.11dB/m Used between the antenna and the main feeder Between the antenna and the tower-top amplifier Between the cabinet and the lightning arrester

Antenna: In mobile communications systems, the antenna consists of an array of element antennas,

Element antenna

Feeding network

Antenna connector

Directional antenna Omnidirectional antenna

Feeding network

Element antenna

Feeding network

Antenna connector

o BTS3012 antennas are classified: By radiation features in horizontal directions: omnidirectional antennas and

directional antennas By polarization features: single polarization antennas and dual polarization

antennas

BTS3012

DDPUDTRUDTMUBSC Abis

Antenna

TMA

Antennasupport

Jumper

JumperFeeder

Jumper

Omnidirectional antenna

Single polarization antenna

Dual polarization antenna

BTS 3012 Configurations

1 2

Typical configuration S1/1/1（ transmit independence mode）

S1/1/1 transmit independence mode， Each cell is configured one DTRU and one DDPU.

The connection for one cell is showed in the right slide

BSC data configuration should be ：transmit independence mode ， receive independence mode

DDPU

TX BRXB1

RXA1RXA2RXA3RXA4

RXB2RXB3RXB4

TX A

DTRU

TX 1

TCOM

RXM 1

RXM 2RXD 1

RXD 2

TX 2IN2

IN 1

Typical configuration S1/1/1（ transmit diversity+4-way receive diversity）

S1/1/1 transmit diversity+4-way receive mode， each cell is configured one DTRU and two DDPU

BSC data configuration should be ： transmit diversity mode

4-way receive mode

DTRU

DDPU

TX BRXB1

RXA1RXA2RXA3RXA4

RXB2RXB3RXB4

TX A

DDPU

TX BRXB1

RXA1RXA2RXA3RXA4

RXB2RXB3RXB4

TX A

TX 1

TCOM

RXM 1

RXM 2RXD 1

RXD 2

TX 2IN2

IN 1

3 4

Typical configurationS2/2/2（ transmit independence mode）

S2/2/2 transmit independence mode， Each cell is configured one DTRU and one DDPU

The connection for one cell is showed in the right slide

BSC data configuration should be ： transmit independence mode ， receive diversity mode

DDPU

TX BRXB1

RXA1RXA2RXA3RXA4

RXB2RXB3RXB4

TX A

DTRU

TX 1

TCOM

RXM 1

RXM 2RXD 1

RXD 2

TX 2IN2

IN 1

Typical configurationS2/2/2（ PBT mode ）S2/2/2 PBT

mode， each cell is configured two DTRU and one DDPU

The connection for one cell is showed in the right slide

BSC data configuration should be ：PBT mode

receive independence mode

DDPU

TX BRXB1

RXA1RXA2RXA3RXA4

RXB2RXB3RXB4

TX A

DTRU

TX 1

TCOM

RXM 1

RXM 2RXD 1

RXD 2

TX 2

IN2

IN 1

DTRU

TX 1

TCOM

RXM 1

RXM 2RXD 1

RXD 2

TX 2

IN2

IN 1

5 6

7 8

S4/4/4 wideband transmit combination mode ， each cell is configured two DTRU and one DDPU

BSC data configuration should be ：wideband transmit combination mode ， receive diversity mode

S1/2/1,cell1 and cell 3 need share one DTRU, cell 2 need configure one DTRU and one DDPU.

BSC data configuration should be ： DTRU1：

transmit independence mode， receive independence mode ；DTRU2：transmit independence mode ， receive independence diversity mode

Typical configuration S8/8/8S8/8/8 cell 1 and cell 3 are configured 4 DTRU,2 DCOM and 1 DDPU

BSC data configuration should be ：wideband transmit combination mode ， receive diversity mode

DTRU

TX 1

TCOM

TX 2IN2

IN 1

TX 2

TX1

DTRU

TX 1

TCOM

TX 2IN2

IN 1

Tx-com

DTRU

TX 1

TCOM

TX 2IN2

IN 1

DDPU

TX BRXB1

RXA1RXA2RXA3RXA4RXB2RXB3RXB4

TX A

TX 2

TX1

DTRU

TX 1

TCOM

TX 2IN2

IN 1

Tx-com

Typical configuration S8/8/8S8/8/8

cell2 is configured 4 DTRU,2 DCOM and 2 DDPU, cell 2 need cross the cabinet

BSC data configuration should be：wideband transmit combination mode ， receive diversity mode

Attention： only support frequency hopping

DTRU

TX 1

TCOM

TX 2IN2

IN 1

DDPU

TX BRXB1

RXA1RXA2RXA3RXA4RXB2RXB3RXB4

TX A

TX 2

TX1

DTRU

TX 1

TCOM

TX 2IN2

IN 1

Tx-com

RF-EX1RF-EX2RF-EX3RF-EX4

DTRU

TX 1

TCOM

TX 2IN2

IN 1

DDPU

TX BRXB1

RXA1RXA2RXA3RXA4RXB2RXB3RXB4

TX A

TX 2

TX1

DTRU

TX 1

TCOM

TX 2IN2

IN 1

Tx-com

RF-EX1RF-EX2RF-EX3RF-EX4