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www.huawei.com
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
DBS3800 Hardware System Structure
Page2Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Forewordl DBS3800 is a distributed NodeB solution put forward by
Huawei Technologies Co.Ltd.
l In this slide, we’ll mainly introduce the hardware system
structure, application scenarios, basic functions of modules
and networking and configuration of the DBS3800
Page3Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Objectivesl Upon completion of this course, you will be able to:
p List the application scenarios of DBS3800
p Detail the hardware structure of DBS3800
p Detail the functions of different modules
p List the networking and configuration examples
Page4Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Referencesl 《DBS3800 Product Description》
l 《DBS3800 Hardware Description》
Page5Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Contents1. General Description
2. Hardware Introduction
3. Networking and Configuration
Page6Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
DBS3800 Family Overview
l DBS3800 is a distributed NodeB of Huawei Technologies Co.Ltd.p Baseband Unit (BBU): processes baseband signalsp Remote Radio Unit (RRU): processes RF signals
l DBS3800 Family has three productsp BBU3806: indoor baseband unitp BBU3806C: outdoor baseband unitp RRU3801C: remote radio unit
l DBS3800 Solutionsp Distributed Solution p Integrated mini NodeB: BTS3803C
DBS3800
BBU3806 RRU3801C
BTS3803C
BBU3806C
Page7Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Application Scenarios for DBS3800l Application scenario 1:
p Launch a new 3G outdoor site room with power backup requirement
APM
+
-48V BBU3806
+
-48V RRU3801C
Page8Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Application Scenarios for DBS3800l Application scenario 2:
p launch 3G services on the basis of a 2G site
-48V BBU3806
+
220V RRU3801C
Page9Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Application Scenarios for DBS3800l Application scenario 3:
p Launch a new 3G outdoor site room without power backup requirement
AFB
+
-48V BBU3806
+
220V RRU3801C
Page10Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Application Scenarios for DBS3800l Application scenario 4:
p Launch a new 3G site for hot
spot, marginal networks, and
blind spots such as tunnels
SPD
+
BTS3803C
BTS3803C
SPD40R
LMT
RNC
Ethernet
power
gnd
Page11Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
DBS3800 Characteristicsl Supports switched circuit domain (CS) and packet (PS) domain
servicesl Supports positioning servicesl Supports softer handover, soft handover and hard handoverl Supports transmit diversity mode and receive diversity model Supports high-speed downlink packet access (HSDPA) technology
p HSDPA allows the traffic at up to 14.4 Mbps for a single cellp HSDPA enables a single cell to support 15 OVSF codes
l Supports RRU cascading p The maximum distance between two RRUs is 40kmp The distance from the first one to the last one should be within 100kmp When using the 1.25 G optical module, cascading levels is up to 4p When using the 2.5 G optical module, cascading levels is up to 8
Page12Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Contents1. General Description
2. Hardware Introduction
3. Networking and Configuration
Page13Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Contents2. Hardware Introduction
2.1 BBU Hardware
2.2 RRU Hardware
2.3 BTS3801C Hardware
2.4 Antenna and Feeder Subsystem
Page14Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
BBU Overview
BBU3806 appearance BBU3806C appearance
60W 100W
192CE(UL)/256CE(DL)192CE(UL)/256CE(DL)CE Numbers
-48V DC+24V DC
3
-48V DC≤ 5kg42mm(H)×436mm(W)×300mm(D)BBU3806
3Cells
220V ACPowerand Power
Consumption
≤15kgWeight610mm(H)×380mm(W)×200mm(D)DimensionBBU3806CIndex
Page15Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
BBU System Structure
Page16Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
BBU3806 Panel
8K/TT110M RST
EXT_ALM
ETH_RS232E1/T1/J1Ela Elb
RXTX
CPRI0
RXTX
CPRI1
RXTX
CPRI2
BITS GPS FE1
FE0 PWR/RS485ONOFF
TYPE LOCAT_ID E1/T1/J1
ONOFF
CPRI0 CPRI1 CPRI2 RUN ALM ACT
LIU7LIU6LIU5LIU4LIU3LIU2LIU1LIU0
ESD
Indicator
Page17Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
BBU3806 Indicators
Remote alarms related to LOS are reported0.125 s ON, 0.125 s OFFLocal alarms related to LOS are reportedOnThe ports are normal or not in useOff
yellowCPRI0~CPRI2
Remote alarms related to the E1/T1/J1 are reported0.25 s ON, 0.25 s OFF
Local alarms related to the E1/T1/J1 are reportedOnThe link isn’t used or there’s no alarmOff
yellowLIU0~LIU7
The BBU is standby or extendedOffThe BBU is activeOn
greenACT
There’s alarm (exclude VSWR warning)OnThere’s no alarm(exclude VSWR warning)Off
redALM
The BBU3806 has no power input, or it is faultyOff
The BBU3806 is checking the version, or it is faulty
OnThe software is being loaded to the BBU38060.25 s ON, 0.25 s OFF
The BBU3806 is running properly1 s ON, 1 s OFF
greenRUN
MeaningStatusColorName
Page18Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
BBU3806 Panel
8K/TT110M RST
EXT_ALM
ETH_RS232E1/T1/J1Ela Elb
RXTX
CPRI0
RXTX
CPRI1
RXTX
CPRI2
BITS GPS FE1
FE0 PWR/RS485ONOFF
TYPE LOCAT_ID E1/T1/J1
ONOFF
CPRI0 CPRI1 CPRI2 RUN ALM ACT
LIU7LIU6LIU5LIU4LIU3LIU2LIU1LIU0
ESD
BBU-RNC interface
BBU-BBU interface
BBU-RRU interface
BBU-RNC interface
Clock interface
Clock interface
Maintenance/Alarm interface
Power interface
Page19Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
BBU3806 Ports
Connector for transmitting 8-channel E1/T1/J1 electrical signalsE1/T1/J1
Connector is to interconnect the active / standby BBU3806sEIa
Connector is to interconnect BBU3806s to form a resource poolEIb
1.25 Gbit/s or 2.5 Gbit/s optical sockets connect to the RRUCPRI 0-2
Port for 2 MHz clock signal inputBITS
Port for GPS clock signal inputGPS
Port for 8 kHz /TTI clock signal output8K/TTI
Port for 10 MHz clock signal output10M
Ethernet port for IP trafficFE0/1
FunctionLabel
Page20Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
BBU3806 Panel
8K/TT110M RST
EXT_ALM
ETH_RS232E1/T1/J1Ela Elb
RXTX
CPRI0
RXTX
CPRI1
RXTX
CPRI2
BITS GPS FE1
FE0 PWR/RS485ONOFF
TYPE LOCAT_ID E1/T1/J1
ONOFF
CPRI0 CPRI1 CPRI2 RUN ALM ACT
LIU7LIU6LIU5LIU4LIU3LIU2LIU1LIU0
ESD
Page21Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
BBU3806 DIP Switches
75ohm E1(default value)ONON
110ohm J1OFFON
100ohm T1ONOFF
120ohm E1OFFOFF
MeaningDIP position8DIP position7
Extended BBU3806 2OFFONON
Extended BBU3806 1OFFONOFF
Standby BBU3806OFFOFFON
Active BBU3806(default value)OFFOFFOFF
MeaningDIP position6DIP position5DIP position4
undefined,default is OFFOFFOFFOFF
MeaningDIP position3DIP position2DIP position1
Page22Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
BBU3806C Panel
RST
10 M
8K/TT1
LIU0
LIU1
LIU2
LIU3
LIU4
LIU5
LIU6
LIU7
RUN
ALM
ACT
CPRI2
CPRI1
CPRI0
ON
OFF
ETH_RS232
E1/T1&
75/120 LOC
AT.ID
ON
OFF
1 2
3
4PWR
RS485&EXT_ALM
2×FE
8×E1/T1
OPT
GPS
E1/T1 GND
CPR
I1_TXC
PRI1_R
XC
PRI2_TX
CPR
I2_RX
CP
RI0_TX
CPR
I0_RX
Ela
Maintenance PanelMaintenance Panel Bottom PanelBottom Panel Distributed BoardDistributed Board
Page23Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Contents2. Hardware Introduction
2.1 BBU Hardware
2.2 RRU Hardware
2.3 BTS3801C Hardware
2.4 Antenna and Feeder Subsystem
Page24Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
RRU Overview
200 V to 240 V AC200 V to 240 V AC
210W
-48V DC
≤ 18 kg
565mm(H)×390mm(W)×165mm(D)
20W RRU3801C
-48V DC
Power Supply
240WPower Consumption
≤ 20 kg
610mm(H)×380mm(W)×200mm(D)
40W RRU3801C
Weight
Dimension
20W RRU3801C 40W RRU3801C
Page25Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
RRU System Structure
RNC BBU3806
RRU3801 C
Dup
lex
er
Opt
ical
inte
rface
Hig
h sp
eed
inte
rface
mod
ule
Feedback channel
Transmit signalprocessor
Receive signalprocessor
ADC
ADC
DAC
MTRXRX1
RX1
RX2
A&Fsubsystem
TX1
RX2 LNA
LNA
PA
Page26Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
RRU3801C Panel-40WMaintenance PanelMaintenance Panel Bottom PanelBottom Panel Distributed BoardDistributed Board
Page27Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
RRU3801C Indicators-40W
Power amplifier is turned off,and there’s VSWR alarming before it is turned off
Red flashing slowly at 1Hz
Power amplifier is working, there’s VSWR alarming on ANT_TX/RXA port Red is On
Power amplifier isn’t working,board is runningGreen flashing slowly at 1 Hz
Power amplifier is working,there’s no VSWR alarmGreen is On
Red and
GreenTX_ACT/VSWR
There’s alarm (exclude VSWR warning)On
There’s no alarm(exclude VSWR warning)OffRedALM
There is no power input or the BBU is faultyOffCheckout status of the version or BBU is faultyOnSoftware of the board is loading0.5 s ON, 0.5 s OFF
The RRU is working normally1 s ON, 1 s OFF
GreenRUN
MeaningStatusColorName
Page28Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
RRU3801C Indicators-40W
Local alarms related to LOS are reportedOn (red)
Local alarms related to LOS are reportedOn (red)
MeaningStatusColorName
The optical module is not in position or it is powered offOFF
CPRI links between the RRU3801C and the lower level equipment are out of lock or not in the specified state
0.125 s ON, 0.125 s OFF (red)
The CPRI link is operationalOn (green)
Red and GreenCPRI_E
The optical module is not in position or it is powered offOFF
CPRI links between the RRU3801C and the upper level equipment are out of lock or not in the specified state
0.125 s ON, 0.125 s OFF (red)
The CPRI link is operationalOn (green)
Red and GreenCPRI_W
Un-tested statusOff
Being testedGreen flashes slowly at 1Hz
Test result is abnormalRed is onTest result is normalGreen is on
Red and GreenTST_RSLT
Page29Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Contents2. Hardware Introduction
2.1 BBU Hardware
2.2 RRU Hardware
2.3 BTS3803C Hardware
2.4 Antenna and Feeder Subsystem
Page30Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
BTS3803C Hardware Structure
340W(single)/820W(double)
310W (single)/730W(double)
40W RRU
20W RRUPower and
Power Consumption
≤ 43 (a single cabinet)
≤ 83 (two cabinets)
610mm(H)×380mm(W)×430mm(D)
BTS3803C
Weight
Dimension
Page31Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Contents2. Hardware Introduction
2.1 BBU Hardware
2.2 RRU Hardware
2.3 BTS3801C Hardware
2.4 Antenna and Feeder Subsystem
Page32Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Antenna and Feeder System
Page33Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Contents1. General Description
2. Hardware Introduction
3. Networking and Configuration
Page34Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Networkingl Between BBUs and RNC
p multiple networking : star, chain, tree and ring
p The chain and tree topologies support up to five levels of cascading
Page35Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Networkingl Between BBU and RRUs
p multiple networking : star, chain and ring p For both chain and tree networking modes:
n When using the 1.25 G optical module, cascading levels can be up to 4n When using the 2.5 G optical module, cascading levels can be up to 8
Page36Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Typical Configuration—1×1
Applied to wide areas and indoor circumstancesApplied to wide areas and indoor circumstances
Page37Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Typical Configuration—2×1Applied to long stretched areas Applied to long stretched areas
Page38Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Typical Configuration—3×1Applied to cities or other high capacity areasApplied to cities or other high capacity areas
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