ome201102 huawei bts3012 hardware structure issue
TRANSCRIPT
HUAWEI BTS3012 Hardware Structurewww.huawei.com
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
ObjectivesUpon 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
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page2
References
BTS3012 Technical Manual BTS3012 Installation Manual BTS3012 User Manual
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page3
Contents1. Overview 2. System Components 3. Signal Processing 4. Antenna and Feeder System
5. Typical Configuration
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page4
LocationUm Interface MS BTS3012 MS BTS3012 BTS3012 MS BTS3012 OMC BTS: Base Transceiver Station AUC: Authentication Center BSC: Base Station Controller EIR: Equipment Identity Register BSC A Interface MSC/VLR MAP TUP,ISUP PSTN ISDN PSPDN
HLR/AUC/EIR
SMC/VM
MS: Mobile Station HLR: Home Location Register
MSC: Mobile Switching CenterVM: Voice Mailbox
VLR: Visitor Location Register
SMC: Short Message Center
OMC: Operation and Maintenance CenterPage5
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Features and Functions
Support GSM800M850M900M1800M1900M Support networking topology includes star, tree, chain and ring
Support A5/1 and A5/2 encryption/decryption
Support GPRS and EDGESupport dynamic and static power control Support the omni-directional coverage and directional
coverage
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page6
Features and Functions
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, STM1, microwave, and satellite transmission
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page7
Contents1. Overview 2. System Components 3. Signal Processing 4. Antenna and Feeder System
5. Typical Configuration
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page8
Hardware structureAbis Interface Monitor Protection for signal BITSTBUS/DBUS/CBUS
Um Interface
Extension cabinet
CBUS3
Electric tilt antenna &TMA feed
DATURF signal
TMA TMA DAFU
MS
E1
CBUS2DBUS/ CBUS TBUS
DTRUFH_BUS
DTMUE1 Metro 100 DEMU
CBUS3CBUS2 FH_BUS
DTRU
fiber
RF signal
DAFU
CBUS3 CBUS3 CBUS2 FH_BUS
TMA TMA DAFU
DTRURF signal
NFCB
CBUS3
CBUS3 CBUS3 Electric tilt antenna & TMA feed
DATU
Electric tilt antenna & TMA feed
Common subsystem
Double transceiver subsystem
Forepart of RF Subsystem
Antenna and feeder subsystem
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page9
BTS3012 Cabinet and BoardsAbbreviations DTRU DTMU DCCU DAFU DDPU DCOM DATU DMLC DELC DSAC DCSU DEMU DCTB FAN Box Double Transceiver Unit Transmission & Timing & Management Unit for DTRU BTS Cable Connection Unit for DTRU BTS Antenna Front-end Unit for DTRU BTS Dual Duplexer Unit for DTRU BTS Combining Unit for DTRU BTS Antenna and TMA Control Unit for DTRU BTS Monitor Signal Lightning-Protection Card for DTRU BTS E1 Signal Lightning-Protection Card for DTRU BTS Signal Access Card for DTRU BTS Combined cabinet Signal connection Unit for DTRU BTS Environment Monitoring Unit for DTRU BTS Cabinet Top Backplane for DTRU BTS NodeB Fan Controlling and monitoring BoardPage10
Description
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
BTS3012 Cabinet and BoardsCabinet Top Access Subsystem (DCTB)D M L C D E L C D E L C D S A C
Power and E MC
Antenna Front-End of the RF Subsystem (DAFU)
D C O M
D D P U
D C O MWiring
D D P U
D C O M
D D P U
Double transceiver subsystem
D T R U
D T R U
D T R UWiring FAN Air Inlet
D T R U
D T R U
D T R U
Common Subsystem
D T M U
D T M U
D E M U
D C S U
D C C U
D A T U
Wiring & Air Inlet Transmission Unit Transmission Unit
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
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BTS3012 Cabinet and BoardsCabinet Top Access Subsystem (DCTB)D M L C D E L C D E L C D S A C
Power and E MC
Antenna Front-End of the RF Subsystem (DAFU)
D C O M
D D P U
D C O MWiring
D D P U
D C O M
D D P U
Double transceiver subsystem
D T R U
D T R U
D T R UWiring FAN Air Inlet
D T R U
D T R U
D T R U
Common Subsystem
D T M U
D T M U
D E M U
D C S U
D C C U
D A T U
Wiring & Air Inlet Transmission Unit Transmission Unit
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Page12
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
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Page13
Functions of DTMU
Providing the external GPS input, the BITS synchronized clock input
Providing 4-route or 8-route E1 inputbackup between theactive and standby boards
Providing local MMI maintenance of the 10 M network port Controlling, maintaining, and operating the BTS Providing fault management, configuration management, performance management, and security management
Supporting 8-route digital alarm input. Two routes are lightning arrester failure alarm detection
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page14
Structure of DTMUDTMU LMT MMI CBUS2 MCU
OML Abis DBUS
BSC
BIU
DTRU
Clock External synchronized clock MCK Subrack number and clock
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Page15
Indicators on DTMUIndicato Color Description Status Meaning r RUN Green Indicates Slow flash (0.25 Hz) OML is blocked operation Slow flash (0.5 Hz) Normal Fast flash at BSC data loading uncertain intervals Off Power failure of the board ACT Green Indicates Off Standby whether the On Active board is active or standby PLL Green Indicates the Off Abnormal clock status On Free-run Fast flash (4 Hz) Pull-in Fast flash (1 Hz) Lock LIU1 Green Indicates the Off E1 port 1 is normal when SWT is out transmission E1 port 5 is normal when SWT is on status of E1 On E1 port 1 near end alarm occurs when port 1 and SWT is out port 5 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 onDTMU RUN ACT PLL LIU1 LIU2 LIU3 LIU4 SWT ALM
RST MMI
T2M FCLK T13M
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Page16
Indicators on DTMUIndicator Color Description Status LIU2 Green Indicates the Off transmission status of E1 port 2 and port 6 On Meaning E1 port 2 is normal when SWT is out E1 port 6 is normal when SWT is 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 Indicates the Off E1 port 3 is normal when SWT is out transmission status of E1 E1 port 7 is normal when SWT is on port 3 and port 7 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 Indicates the Off E1 port 4 is normal when SWT is out transmission status of E1 E1 port 8 is normal when SWT is on port 4 and port 8 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 Indicates handover status Off LIU1 to LIU4 indicate the transmission status of E1 port 1 to 4. of E1 On LIU1 to LIU4 indicate the transmission status of E1 port 5 to 8. Alarm indicators Off No hardware alarm On Hardware alarmDTMU RUN ACT PLL LIU1 LIU2 LIU3 LIU4 SWT ALM
LIU3
Green
RST MMI
LIU4
Green
T2M FCLK T13M
SWT ALM
Green Red
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Page17
Interface on the DTMU panelInterfaceT2M FCLK T13M MMI
TypeSMB (female) SMB (female) SMB (female) RJ45
DescriptionOutputs reference testing clock 216.7 Hz frame clock 13M primary reference clock Near end maintenance network port
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Page18
Functions of DEMU
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
Output of 6-route Boolean value and input of 32-route main node alarmsMonitor signal DMLC DEMU CBUS3
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page19
Functions of DCSU
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.DCMB DCCU DTRB DCSU DCTB DTMU
There is only one DCSU and it ismandatoryDEMU
The DCSU transfers signals for the combined cabinet and cabinet group between the common subrack and the cabinet topCopyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
DATU
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The interfaces on the DCSU panelSilkScreen Type DescriptionDCSU
CC_OUT
MD64 (female) For cable output from the combined cabinetCC_OUT
CC_IN
MD64 (female) For cable input to the combined cabinet
CC_IN
To_DTRB
MD64 (female) Connecting to the DTRB through cables
TO_DTRB
TOP2
DB26 (female)
Connecting to the cabinet top subrack through cables
TOP2
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Page21
Switch of DCSUGM51DCSU VERB SW6 SW9SW7 SW10 SW8
SW5
SW14 SW13 SW12
SW4 SW3 SW2 SW11 SW1
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Page22
Functions of DCCU
The DCCU is placed in slot 6 of the common subrack. There isDTMU
only one DCCU and it isDCMB DCCU
NFCB DCTB DCSU
mandatory
Converting the input and output signals of the common subrack.DEMU
Inputting the power of the common subrack
DATU
Providing EMI filteringPage23
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
The interfaces on the DCCU panelSilkScreen TRAN To_FAN TO_TO P1DCCU
Type
Description For E1 signal inputTRAN
MD64 (female)DB26 (female) MD64 (female)
Connects to the fan panel through cables Connects to the cabinet top subrack through cables For power input of the common unitTo_FAN
POWER 3V3
TO_TOP1
POWER
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Page24
Functions of DATUDATU
The DATU is placed in slots 2 to 4 and slot 7 of the common subrack with the DEMU. It is optional and there are maximum two DATUs
RUN ACT ALM
Transmitting the remote electrical tilt unit (RET) control signals
ANT0 ANT1 ANT2
Feeding the TMA Communicating with the DTMU through
ANT3
ANT4 ANT5
CBUS3 for control and alarm report
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Page25
BTS3012 Cabinet and BoardsCabinet Top Access Subsystem (DCTB)D M L C D E L C D E L CD S A C
Power and E MC
Antenna Front-End of the RF Subsystem (DAFU)
D C O M
D D P U
D C O MWiring
D D P U
D C O M
D D P U
Double transceiver subsystem
D T R U
D T R U
D T R UWiring FAN Air Inlet
D T R U
D T R U
D T R U
Common Subsystem
D T M U
D T M U
D E M U
D C S U
D C C U
D A T U
Wiring & Air Inlet Transmission Unit Transmission Unit
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Page26
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)CKB2
D M L C
D E L C
D E L C
D S A CKB1 C
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Page27
DCF
Function of DMLC
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 DMLC
DMLC
SWIN
Thirty-two-route Boolean value input Six-route Boolean value outputSWOUT
Four-route analog input Smoke/water/access
control/infrared/humidity/temperature sensorsignal inputCopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page28
AIN
Function of DELC
The DELC is placed in slots 0 to 2 of theDELC
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
TR
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Page29
Function of DSAC
The DSAC is placed in slot 3 of the cabinet top subrack. There is only one DSAC and it is mandatory
DSAC
Six-route Boolean value input. Two-route CBUS3 output Two-route input of lightning protection arrester failure alarm
Access protection of BITS clock input
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Page30
SYNC
EAC
COM1
S1+S1-S2+S2-
COM 2
BTS3012 Cabinet and BoardsCabinet Top Access Subsystem (DCTB)D M L C D E L C D E L C D S A C
Power and E MC
Antenna Front-End of the RF Subsystem (DAFU)
D C O M
D D P U
D C O MWiring
D D P U
D C O M
D D P U
Double transceiver subsystem
D T R U
D T R U
D T R UWiring FAN Air Inlet
D T R U
D T R U
D T R U
Common Subsystem
D T M U
D T M U
D E M U
D C S U
D C C U
D A T U
Wiring & Air Inlet Transmission Unit Transmission Unit
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page31
Double transceiver subsystem
DTRUDouble Transceiver Unit DTRBDTRU DTRU DTRU DTRU DTRU DTRU
DTRB
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Page32
Functions of DTRU
RF subsystem transmit part. Converts the basband signals on the twoTRXs to the RF signals. Supports up-frequency conversion of the signals and RF frequency hopping.Filters, amplifies, and outputs the combined signals
RF subsystem receive part.Devides and modulates the RF signals on thetwo TRXs.Supports transmit receive and RF frequency hopping
Baseband processing part.Processes signals.Supports coding and
decoding, interleaving and de-interleaving, modulation anddemodulation.Supports voice fax services.Supports data services in Phase II, GPRS services, and EDGE services.Supports transmit diversity and 4-way receive diversity.Amplifies the output power
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page33
Functional structure of DTRU
DTRU Baseband and RF Unit (DBRU) DTRU Power Amplifier Unit (DPAU) DTRU Power Supply Unit (DTPS)DTRU DPAU
DTMU DBRU
DAFU
DTPS 48V DC
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page34
Indicators on DTRUDTRUIndicator RUN Color Description On Off Slow flash (0.25 Hz) Slow flash (0.5 Hz) Status Meaning There is power supply or the board is faulty. There is no power supply and the board is faulty. The board is starting. The board is running. Green Indicates the running and power-on of the DTRU
TX1 IN1 TCOM IN2 TX2 RST RUN ACT ALM RF_IND RXM1
Fast flash (2.5 Hz)ACT Green Indicates the TRX is working On
The DTMU is sending configuraiton parameters to the DTRU.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. Communication between DTRU and DTMU is not set up Only parts of the logic channels are working normally (including after TRX mutual aid). Critical alarm occurs to the board. The board is normal. Standing wave alarm Normal RL alarm
Off Slow flash (0.5Hz) ALM Red Indicates alarm On (including highfrequency flash) Off RF_IND Red RF interface indicators On Off Slow flash (0.5 Hz)
RXD1 RXM2 RXD2 PWR
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page35
Connectors on DTRUInterfaceTX1
TypeN (male) TX1 output signals:
DescriptionTX1 IN1 TCOM IN2 TX2
DTRU
Output to the forepart of the RF when not in combiner Output to IN1 in combiner IN1 TCOM SMA (female) Connects to TX1 in combiner N (male) Combines and outputs IN1 and IN2 or implements PBT combined output IN2 TX2 SMA (female) Connects to TX2 in combiner N (male) TX2 output signals: Output to the forepart of the RF when not in combiner Output to IN2 in combiner RXM1 SMA (female) Main or diversity 1 receive port of carrier 1RST RUN ACT ALM RF_IND RXM1 RXD1 RXM2 RXD2 PWR
RXD1RXM2 RXD2
SMA (female) Diversity 1 or 2 receive port of carrier 1SMA (female) Main receive port of carrier 2 or Diversity 3 receive port of carrier 1 SMA (female) Diversity receive port of carrier 2 or Diversity 4 receive port of carrier 1
PWR
3V3
Power supply Page36
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
DTRU transmit mode
No combining Diversity transmitter Power booster technology Wide band combining
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Page37
No combiningTX1
TXIN1 TCOM IN2 TX2combiner
TRX0
RXM1 RXD1
TX
RXM2 RXD2
TRX1
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Page38
Diversity transmitterTX1 IN1
Man made multi wayTX
TCOMIN2 TX2
combiner
TRX0
TX
TRX1
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Page39
Power booster technologyTX1 IN1 TCOM IN2
Same phaseTXcombiner
TRX0
TX2
TX
TRX1
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Page40
Wide band combiningTX1 IN1 TCOM IN2 TX2combiner
TX
TRX0
TX
TRX1
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Page41
DTRU receive mode
Independent receiver Dividing receiver Four diversity receiver
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Page42
Independent receiverTX1TX
IN1 TCOM IN2 TX2combiner
TRX0
RXM1divider
RXD1
TX divider
RXM2 RXD2
TRX1
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Page43
Dividing receiverTX1 IN1 TCOM IN2 TX2combiner TX
TRX0
RXM1divider
RXD1divider
TX
RXM2 RXD2
TRX1
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Page44
Four diversity receiverTX1TX
IN1 TCOM IN2 TX2combiner
TRX0
RXM1divider
RXD1divider
TX
RXM2 RXD2
TRX1
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Page45
Intra structure of DTRUTX1TX
IN1 TCOM IN2 TX2combiner
TRX0
RXM1 RXD1
divider TX divider
RXM2 RXD2
TRX1
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page46
Functions of DTRB
The DTRB is placed in the DTRU subrack. It has six slots, each holding one DTRUDTRU DTRU DTRU DTRU DTRU DTRU
The DTRB provides connections between the DCSU and the DTRU. All the onsite signals are provided to the DCSU through the DTRB
DTRB
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page47
BTS3012 Cabinet and BoardsCabinet Top Access Subsystem (DCTB)D M L C D E L C D E L C D S A C
Power and E MC
Antenna Front-End of the RF Subsystem (DAFU)
D C O M
D D P U
D C O MWiring
D D P U
D C O M
D D P U
Double transceiver subsystem
D T R U
D T R U
D T R UWiring FAN Air Inlet
D T R U
D T R U
D T R U
Common Subsystem
D T M U
D T M U
D E M U
D C S U
D C C U
D A T U
Wiring & Air Inlet Transmission Unit Transmission Unit
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page48
Front-End of the RF Subsystem
DDPU (Dual Duplexer Unit for DTRU BTS) DCOM (Combining Unit for DTRU BTS)
D CNBBI
D D P U
D C O M
D D P U
D C O M
D D P U
O M
0
1
2
3
4
5
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page49
Functions of DDPU
The DDPU is intermixed with the DCOM in the DAFU subrackof 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
Sending multi RF signals from the transceiver in the DTRU to the antenna through the duplexer
Sending signals from the antenna after amplifying and quartering them to the transceiver in the DTRU
Detecting standing wave alarms in the Antenna Feeder system
Receiving the gain control of the low noise amplifierPage50
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Functional structure of the DDPUANTAANTB duplexer divider duplexer divider
TXA RXA1 RXA2 RXA3 RXA4 TXB RXB1 RXB2 RXB3 RXB4
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page51
Indicators on DDPUIndicator RUN Color Green Description Indicates the DDPU is running and powerd on On Off Slow flash (0.5 Hz) Fast flash (2.5 Hz) Status MeaningANTB
There is power supply and the board is faulty. There is no power supply or the board is faulty. The board is running normally. The DTMU is sending configuration parameters to the DDPU or the DDPU is loading software programs. There is alarm(including standing wave alarm) and the board is faulty. No fault The board is starting or loading the newest application programs
ANTA DDPU RUN ALM VSWRA VSWRB
ALM
Red
Indicates an alarm
On (including highfrequency flash) Off Slow flash (0.5 Hz)
COM
POWER
RXA1
VSWRA
Red
Indicates a standing wave alarm of Channel A Indicates a standing wave alarm of Channel B
Slow flash (0.5 Hz) On Off Slow flash (0.5 Hz) On Off
Standing wave alarm occurs to Channel A Standing wave critical alarm occurs to Channel A No standing wave alarm occurs to Channel A Standing wave alarm occurs to Channel B Standing wave critical alarm occurs to Channel B No standing wave alarm occur to Channel B
RXA2 RXA3 RXA4 RXB1 RXB2 RXB3 RXB4
TXA
VSWRB
Red
TXB
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Page52
Interface on DDPUInterface Type COM DB26 (female) POWER 3V3 TXA N (male) TXB RXA1 RXA2 RXA3 RXA4 RXB1 RXB2 RXB3 RXB4 ANTA ANTB N (male) SMA (female) SMA (female) SMA (female) SMA (female) SMA (female) SMA (female) SMA (female) SMA (female) DIN (female) DIN (female) Description Sends to the DDPU control signals, communication signals, clock signals and subrack number Power supply input Input of the TX signals sent from the DTRU Input of the DCOM combining signals Input of the TX signals sent from the DTRU Input of the DCOM combining signals Main 1 output port Main 2 output port Main 3 output port Main 4 output port Diversity 1 output port Diversity 2 output port Diversity 3 output port Diversity 4 output port RF jumper port RF jumper portANTA
ANTB
DDPU RUN ALM VSWRA VSWRB
COM
POWER
RXA1 RXA2 RXA3 RXA4 RXB1 RXB2 RXB3 RXB4 TXB TXA
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page53
Functions of DCOM
The DCOM is placed in the DAFU subrack with the DDPU
DCOM
ONSHELL
The DCOM is optional and there are a maximum three DCOMs. The DTRUTX-COM
combines two carriers into one channel. The DCOM is required when the DTRUs are insufficentTX1
The DCOM combines the 2-route DTRU transmission signals and outputs them to the DDPU
TX2
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Page54
Interfaces on DCOMInterface Type Description
ONSHE LL TX
DB26 (female)
For indentification of the board type of DCOM and on-site status
N (male) Output of combining signals from the DCOM
COM TX1TX2
to DDPU N (male) TX signal input from the DTRU to DCOMN (male) TX signal input from the DTRU to DCOM
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page55
Functions of 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 bythe Fan Controlling and Monitoring BoardSTATE FAN PWR COM
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Page56
Indicators on FAN BOXIndicatorSTATE
ColorGreen
Status
Meaning
Fast flash (4 Hz) Communication between the NFCB and the DTMU is abnormal. There is no alarm
RedGreen
Fast flash (4 Hz) Alarm occurs to the boardSlow flash (0.5 Hz) The board is running normally
Orange (red and green) Green or red or orange
On
The board software is being ungraded
Off
There is no power supply and the board is faulty
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page57
Contents1. Overview 2. System Components 3. Signal Processing 4. Antenna and Feeder System
5. Typical Configuration
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Page58
System Signal Flow
the signal flow of the service and signaling include
DL Signal Flow UL Signal Flow Signaling Processing Signal Flow Clock Signal Flow Combined Cabinet Signal Flow
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Page59
DL Signal FlowUm
MS
Antenna Feeder
D D P U
D T R U
D T M U
Abis
BSC
BTS3012 Cabinet
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page60
DL Signal Flow
The DL signal flow includes the following steps:
The DTMU receives the service data from the BSC, exchanges and processes it, and then transfers it to the DTRU
The DTRU performs digital filtering, up conversion, and filter amplification of the signals and sends the signals to the DDPU
The duplexer in the DDPU filters the signals sent from the DTRU and transmits the signals through antennas and feeders
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page61
UL Signal FlowUm
MS
Antenna Feeder
D A F U
D T R U
D T M U
Abis
BSC
BTS3012 Cabinet
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page62
UL Signal Flow
The UL signal flow includes the following steps:
The antenna receives the signals transmitted from the MS. After being
amplified by the TMA, the signals are transmitted to the DDPUthrough the feeder.The TMA is optional. It is used to compensate the feeder loss and enhance receiver sensitivity of the DDPU antenna port
The DDPU receives the signals and transmits the signals to the DTRU after they are filtered by the duplexer and amplified by the LNA
The DTRU receives the signals and transmits the signals to the DTMU
after amplification and down conversion. The DTMU then transmitsthe signals to the BSC through the Abis interface
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page63
Signaling Processing Signal Flow
BSCAbis DTMU
DTRU
DDPU
BTS3012
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page64
Signaling Processing Signal Flow
The signaling processing signal flow includes the following steps:
The Abis interface board receives the signaling data from the BSC
and transmits the data to the DTMU
The DTMU performs decision and processing on the signaling and transmits the signaling to the DTRU and DDPU
The DTRU and DDPU report board status to the DTMU The DTMU obtains the status of the BTS3012 by collecting and analyzing the status of all boards and transmits the information to the BSC through the Abis interface
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page65
Clock Signal Flow
A-bis DTMUClock distribution cable between cabinets
Boards in main cabinet
Boards in slave cabinet
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page66
Clock Signal Flow Description
The clock signal flow includes the following steps:
The external reference clock is transmitted to the clock module in the DTMU through the Abis interface
The clock module performs phase lock and frequency division on the clock signals to generate different clock signals for BTSs
The clock signals are transmitted to the modules in the main cabinet such as the DTRU and the DDPU
The clock signals are transmitted to the modules in the slavecabinets through the clock distribution cable
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page67
Contents1. Overview 2. System Components 3. Signal Processing 4. Antenna and Feeder System
5. Typical Configuration
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page68
Antenna Feeder subsystemAntenna
Antenna Feeder Jumpers TMA
Antenna support Jumper TMA Jumper
Jumper
Feeder
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page69
Antenna
In mobile communications systems, the antenna consists ofan array of element antennas, as shown in FigureElement antenna Feeding network Element antenna Feeding network
Feeding network
Antenna connector Directional antenna
Antenna connector Omnidirectional antenna
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page70
Antenna
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
Omnidirectional antenna
Single polarization antenna
Dual polarization antenna
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page71
Lightning Arresterfeeder
Lightning Arrester is used to prevent the equipment from being damaged by the lightening current inducted by the core line of the feeder jumper
Lightning Arrester
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page72
Types of Main Feeder
7/8 inch
Cable loss=0.043dB/m
5/4 inch
Cable loss=0.032dB/m
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
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page73
Antenna Pattern
The antenna pattern describes the radiating abilities of antennas in all directions
360 Omni Antenna
120
90
65
Directional antenna
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page74
Polarization
Two main types of polarization
Vertical polarization Horizontal polarization
The types of antenna divided by polarization
Single polarized antenna
Vertical polarization for GSM
One port for one feeder
Dual polarized antenna
+45 degree and -45 degree Two ports for two feeders
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page75
Contents1. Overview 2. System Components 3. Signal Processing 4. Antenna and Feeder System
5. Typical Configuration
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page76
Configuration Principles
The configuration principles of the BTS3012 cabinet are as follows:
The minimum antenna rule use as few as possible antennas for cell configuration.
The minimum cabinet rule use as few as possible cabinets for cell configuration.
The complete synchronous cell rule all TRXs of a synchronous cell are configured in the same cabinet
group
The basic cabinet priority rule TRXs are configured in the basic cabinet in preference, and the number of TRXs in the basic cabinet is not less than that in any extension cabinet
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page77
Configuration Principles
The BTS3012 supports the omnidirectional coverage and the directional coverage.
The BTS3012 supports the combination of two cabinets to form one group and the combination of three cabinet groups.
The BTS3012 supports the transmit diversity and 4-way diversity receive. The DCOM combines two carriers into one channel (the two-into-one function). The DCOM is required when the DTRUs are not sufficient.
The BTS3012 uses DTRU. One single cabinet supports up to 12 TRXs in full configuration.
The maximum number of carriers is eight in a cell with a pair of dual polarization antennas or two omnidirectional antennas of a single sectorized cell
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page78
Typical configuration S1/1/1 Diversity transmitterDDPURXA1
DDPURXA1 TX A RXA2 RXA3 RXA4 RXB1 RXB2 TX B TX B RXB3 RXB4 TX A
S1/1/1 Diversity transmitter / Four diversity receiver modeeach cell is configured one DTRU and two DDPU BSC data configuration should be
RXA2 RXA3 RXA4 RXB1 RXB2 RXB3 RXB4
Diversity transmitter mode
TX 1 IN 1
Four diversity receiver mode
TCOM IN2 TX 2
Cabinet Top powerdBm
46 or 47.8-1.0
RXM 1 RXD 1 RXM 2 RXD 2
DTRU
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page79
Typical configurationS2/2/2 No combining modeDDPU
S2/2/2 transmit independence modeeach cell is configured one DTRU and one DDPU
RXA1 RXA2 RXA3 RXA4 TX A
The connection for one cell is showed in the rightslide
RXB1 RXB2 TX B RXB3 RXB4
BSC data configuration should be
TX 1 IN 1
No combining mode Dividing receiver mode
TCOM IN2 TX 2
Cabinet Top powerdBm
RXM 1 RXD 1
46 or 47.8-1.0DTRU
RXM 2 RXD 2
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page80
Typical configurationS2/2/2 Power booster technology
DDPURXA1
S2/2/2 PBT modeeach cell isconfigured two DTRU and one DDPU
RXA2 RXA3 RXA4 RXB1 RXB2
TX A
The connection for one cell is showed in the right slideTX 1
TX B RXB3 RXB4
TX 1 IN 1
BSC data configuration should be
IN 1 TCOM
Power booster technology mode Independent receiver mode
TCOM IN2 TX 2 IN2 TX 2
RXM 1
RXM 1 RXD 1 RXM 2 RXD 2
Cabinet Top powerdBm
RXD 1 RXM 2
49 - 1.0DTRU
RXD 2
DTRU
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page81
Typical configuration S4/4/4 Wide band combining
DDPURXA1
S4/4/4 Wide band combining mode each cell is configured two DTRU and one DDPU
RXA2 RXA3 RXA4 RXB1 RXB2
TX A
TX B RXB3 RXB4
BSC data configuration should beTX 1 TX 1 IN 1 TCOM IN2 TX 2
Wide band combining modeDividing receiver mode
IN 1 TCOM
IN2 TX 2
Cabinet Top powerdBmRXM 1 RXM 1 RXD 1 RXM 2 RXD 2
46 or 47.8-3.3-1.0DTRU
RXD 1 RXM 2 RXD 2
DTRU
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Page82
Typical Configuration S1/2/1cell1
cell3
cell2
S1/2/1,cell1 and cell 3 share one DTRU, cell 2 need one DTRU and one DDPU
DDPURXA1 RXA2 RXA3 RXA4 RXB1 RXB2 TX B RXB3 RXB4 TX A
DDPURXA1 RXA2 RXA3 RXA4 RXB1 RXB2 TX B RXB3 RXB4 TX A
DDPURXA1 RXA2 RXA3 RXA4 RXB1 RXB2 TX B RXB3 RXB4 TX A
BSC data configuration should be
No combining mode Independent receiver mode No combining mode Dividing receiver mode
DTRU1
TX 1 IN 1 TCOM IN2
TX 1 IN 1 TCOM IN2 TX 2
DTRU2
Cabinet Top powerdBm
TX 2
46 or 47.8-1.0RXM 1 RXD 1 RXM 2 RXD 2 RXM 1 RXD 1 RXM 2 RXD 2
DTRU
DTRU
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Page83
Typical configuration S8/8/8
S8/8/8 cell 1 and cell 3 are configured 4 DTRU,2 DCOMDDPU
Tx-comTX1
RXA1 RXA2 RXA3 RXA4 TX A
Tx-comTX1
and 1 DDPU
BSC data configuration should beTX 2
RXB1 RXB2 RXB3 RXB4 TX B TX 2
DCOM
DCOM
Wide band combining
TX 1 TX 1 IN 1 IN 1 TCOM TCOM IN2 IN2 TX 2 TX 2
TX 1 TX 1 IN 1 IN 1 TCOM TCOM IN2 IN2 TX 2 TX 2
mode
Dividing receiver mode
Cabinet top powerdBm
46 or 47.8-3.3-3.3-1.0DTRU DTRU DTRU
DTRU
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page84
Typical configuration S8/8/8RF-EX1 RF-EX1 RF-EX2 RF-EX3 RF-EX4
S8/8/8 cell2 is configured 4 DTRU,2 DCOM and 2 DDPU, cell 2 need cross the cabinet BSC data configuration should be
RF-EX2 RF-EX3 RF-EX4
DDPURXA1 RXA2 TX A RXA3 RXA4 RXB1 RXB2 TX B RXB3 RXB4
DDPU
Tx-comTX1
RXA1 RXA2 TX A RXA3 RXA4 RXB1 RXB2 TX B RXB3 RXB4
Tx-comTX1
Wide band combining mode Dividing receiver mode
TX 2
TX 2
DCOM
DCOM
TX 1 IN 1 TCOM IN2 TX 2
TX 1 IN 1 TCOM IN2 TX 2
TX 1 IN 1 TCOM IN2 TX 2
TX 1 IN 1 TCOM IN2 TX 2
Cabinet top powerdBm
46 or 47.8-3.3-3.31.0
Attentiononly support RF hopping
DTRU
DTRU
DTRU
DTRU
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page85
Combined Cabinet Signal CablesSlave Data cable Control cable Clock cable
Maincabinet
Main Control cable Clock cable cabinet of slave cabinet group
Data cable Control cable Clock cable
Slave cabinet of slave cabinet group
cabinetof main cabinet group
of maincabinet group
The connection of the signal cables of the combined cabinet is as follows:
The main and slave cabinets are connected by the data cables, control cables, and clock cables
The main and slave combined cabinets are connected by the clock cables and control cables
The main and slave cabinets and combined cabinets require the DIP switches
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page86
Summary
Functions and features of BTS3012 BTS3012 hardware structure Antenna and feeder system Typical configuration
Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page87
Thank youwww.huawei.com
TMA The tower mounted amplifier (TMA) is a low noise amplification module installed on the tower top. The TMA is optional. The triplex TMA is usually used and installed close to the Thank you of triplex antenna. The triplex TMA consists www.huawei.com filter, low noise amplification, and feeder Sending TMAfilter BTS
Feeder
Bypass Lower noise amplific -ation DC
Receiving filter
Receiving filter