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www.huawei.com
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved.
BSC6900 HardwareSystem Structure
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page2
Contents
1 BSC6900 System Overview
2 BSC6900 Hardware Structure
3 BSC6900 Signal Flows
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page3
RNC in WCDMA System
RNC
RNC
NodeB
NodeB
NodeB
CS
PS
CBC
UE UTRAN CNUu Iu
Iu-CS
Iu-PS
Iu-BC
Iur
Iub
Iub
Iub
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page4
Capacity
HW68 R11 Board
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page5
Capacity HW69 R11 Board
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page6
Contents
1 BSC6900 System Overview
2 BSC6900 Hardware Structure2 BSC6900 Hardware Structure
3 BSC6900 Signal Flows
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page7
Contents
2 BSC6900 Hardware Structure
2.1 BSC6900 Cabinets and Subracks
2.2 BSC6900 Boards
2.3 BSC6900 Cables
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page8
BSC6900 Cabinets
EPS
MPS
MPR EPR
Full Configuration
MPR: Main processing rack
EPR: Extended processing rack
MPS: Main processing subrack
EPS: Extended processing
subrack
EPSEPS
EPS
EPS
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page9
Item Specification
Outline
dimensioning
(mm)
2200 ( H ) ×60
0 ( W ) ×800 (
D )
Height of
available space 46U
Weight 140~350kg
Power
consumption
RSR: 4,650W
RBR: 4,660 W
BSC6900 Cabinets
Front View Rear View
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page10
BSC6900 Subrack
12 U shielding subrack of Huawei
28 slots with backplane is positioned in the middle
Front View Rear View
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page11
Contents
2 BSC6900 Hardware Structure
2.1 BSC6900 Cabinets and Subracks
2.2 BSC6900 Boards
2.3 BSC6900 Cables
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page12
Boards in MPS
RINT
RINT
RINT
RINT
RINT
RINT
14 15 16 17 18 19
O M U a
20 21
RINT
RINT
RINT
RINT
24 25 26 27
O M U a
22 23
CSU a
SPUa
SPUa
CSUa
SPUa
SPUa
00 01 02 03 04 05
DPUb
DPUb
GCUa
GCUa
10 11 12 13
SCUa
SCUa
DPUb
DPUb
06 07 08 09
Backplane
Rear board
Backplane
Front
board
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page13
Boards in EPS
Backplan
e
Front
board
RINT
RINT
RINT
RINT
RINT
RINT
14 15 16 17 18 19
RINT
RINT
RINT
RINT
24 25 26 27
SPUa
SPUa
SPUa
SPUa
SPUa
SPUa
00 01 02 03 04 05
DPUb
DPUb
DPUb
DPUb
10 11 12 13
SCUa
SCUa
DPUb
DPUb
06 07 08 09
Backplane
Rear board RINT
20
RINT
21
RINT
22
RINT
23
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page14
RNC Logical Structure
LMT/M2000
clock synchronization subsystem
switching subsyste
m
transport subsyste
m
service processing subsystem
service processing subsystem
service processing subsystem
BAMBAM
RNC
To NodeB
To MSC
To other RNC
To SGSN
Clock signal
Subsystem
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page15
RINT
RINT
RINT
RINT
RINT
RINT
14 15 16 17 18 19
O M U a
20 21
RINT
RINT
RINT
RINT
24 25 26 27
O M U a
22 23
CSU a
SPUa
SPUa
CSUa
SPUa
SPUa
00 01 02 03 04 05
DPUb
DPUb
GCUa
GCUa
10 11 12 13
SCUa
SCUa
DPUb
DPUb
06 07 08 09
Backplane
Rear board
Backplane
Front
board
Switching Subsystem MPS
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page16
Backplan
e
Front
board
RINT
RINT
RINT
RINT
RINT
RINT
14 15 16 17 18 19
RINT
RINT
RINT
RINT
24 25 26 27
SPUa
SPUa
SPUa
SPUa
SPUa
SPUa
00 01 02 03 04 05
DPUb
DPUb
DPUb
DPUb
10 11 12 13
SCUa
SCUa
DPUb
DPUb
06 07 08 09
Backplane
Rear board RINT
20
RINT
21
RINT
22
RINT
23
Switching Subsystem EPS
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page17
Switching Subsystem Inter-Subrack Connection
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page18
Switching Subsystem SCUa: Switching and Control Unit
High-speed backplane channel in each subrack
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page19
Switching Subsystem
Functions
Providing internal Medium Access Control (MAC)
switching
Enabling convergence of ATM and IP networks
Providing a service switching channel for EPS
Providing an OM channel for EPS
Distributing timing signal and RFN signal to EPS boards
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page20
SCUa Board
Port Name Function Type
10/100/1000BASE
-TFor inter-subrack connection
RJ45
COM Serial port for commissioning RJ45
CLKIN
Receiving the 8 kHz and the
1PPS timing signals from the
GCUa/GCGa
RJ45
TESTOUT Test the timing signal output SMB
male
FunctionsMain control board for configuration and maintenance
Support GE Switching for local subrack
Provide synchronous clock and time synchronous information
Working mode
Locate in 6th and 7th slot in active and standby mode
Work in full-interconnection and dual-plane mode among subracks
SCUa
PARC
RUN
ALM
ACT
CO
M
TESTOUT
CL
KIN
ACTLINK
10
/10
0/1
00
0B
AS
E-T
RESET
ACTLINK
8
9
0
1
2
3
4
5
6
7
11
10
ACTLINK
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page21
Service Processing Subsystem
RINT
RINT
RINT
RINT
RINT
RINT
14 15 16 17 18 19
O M U a
20 21
RINT
RINT
RINT
RINT
24 25 26 27
O M U a
22 23
CSU a
SPUa
SPUa
CSUa
SPUa
SPUa
00 01 02 03 04 05
DPUb
DPUb
GCUa
GCUa
10 11 12 13
SCUa
SCUa
DPUb
DPUb
06 07 08 09
Backplane
Rear board
Backplane
Front
board
MPS
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page22
Backplan
e
Front
board
RINT
RINT
RINT
RINT
RINT
RINT
14 15 16 17 18 19
RINT
RINT
RINT
RINT
24 25 26 27
SPUa
SPUa
SPUa
SPUa
SPUa
SPUa
00 01 02 03 04 05
DPUb
DPUb
DPUb
DPUb
10 11 12 13
SCUa
SCUa
DPUb
DPUb
06 07 08 09
Backplane
Rear board RINT
20
RINT
21
RINT
22
RINT
23
Service Processing Subsystem EPS
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page23
Service Processing Subsystem
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page24
Service Processing Subsystem
RINT
RINT
RINT
RINT
RINT
RINT
14 15 16 17 18 19
O M U a
20 21
RINT
RINT
RINT
RINT
24 25 26 27
O M U a
22 23
CSU a
SPUa
SPUa
CSUa
SPUa
SPUa
00 01 02 03 04 05
DPUb
DPUb
GCUa
GCUa
10 11 12 13
SCUa
SCUa
DPUb
DPUb
06 07 08 09
Backplane
Rear board
Backplane
Front
board
SPM in MPS
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page25
Backplan
e
Front
board
RINT
RINT
RINT
RINT
RINT
RINT
14 15 16 17 18 19
RINT
RINT
RINT
RINT
24 25 26 27
SPUa
SPUa
SPUa
SPUa
SPUa
SPUa
00 01 02 03 04 05
DPUb
DPUb
DPUb
DPUb
10 11 12 13
SCUa
SCUa
DPUb
DPUb
06 07 08 09
Backplane
Rear board RINT
20
RINT
21
RINT
22
RINT
23
Service Processing Subsystem
SPM in EPS
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page26
XPUa
PARC
RUN
ALM
ACT
10/1
00/
1000
BA
SE
-T
ACTLINK
0
1
2
3
SPUa Board Component
Four independent subsystems
Motherboard-subboard structure
Two sub-boards
Each has two CPU subsystems
Function
Processing signaling and algorithm
Iub/Iur/Iu interface signaling processing
Wireless and transport resource
management
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page27
DPUa
PARC
RUN
ALM
ACT
DPUb Board Component
22 DSPs in one board
Function
Processing data of wireless frame protocol
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page28
RINT
RINT
RINT
RINT
RINT
RINT
14 15 16 17 18 19
O M U a
20 21
RINT
RINT
RINT
RINT
24 25 26 27
O M U a
22 23
CSU a
SPUa
SPUa
CSUa
SPUa
SPUa
00 01 02 03 04 05
DPUb
DPUb
GCUa
GCUa
10 11 12 13
SCUa
SCUa
DPUb
DPUb
06 07 08 09
Backplane
Rear board
Backplane
Front
board
MPS
Clock Synchronization Subsystem
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page29
Clock Synchronization Subsystem
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page30
Clock Synchronization Subsystem
RINT
RINT
SCUa
RINT
RINT
SCUa
SCUa
GCUa/GCGa
Clock module
RSS
8kHz
To NodeB
To NodeBTo NodeB
RBS RBS
19.44MHz, 32.768MHz, 8KHz
19.44MHz, 32.768MHz, 8KHz
19.44MHz, 32.768MHz, 8KHz
8kHz
Clock cableHigh-speed backplane channel
CN BITS GPS Optional
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page31
GCUa: General Clock Unit
GCGa: General Clock with GPS Card
Function
Generating system timing signal
Generating RFN signal
Clock Synchronization Subsystem
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page32
Port
nameFunction
Port type
ATN-IN Port for the GPS antennaSMA
female
CLKOUT
0~9
Output 8 kHz timing signals and 1PPS
timing signals
RJ45
COM0 Reserved RJ45
COM1 Port for 422-level 8kHz timing signals RJ45
TESTOUT Testing timing signal outputSMB
male
TESTINTesting timing signal input of 2 MHz
signals
SMB
male
CLKIN0Inputting BITS timing and line timing
signals
SMB
male
CLKIN1Inputting BITS timing and line timing
signals
SMB
male
GCUa/GCGa Board
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page33
RINT
RINT
RINT
RINT
RINT
RINT
14 15 16 17 18 19
O M U a
20 21
RINT
RINT
RINT
RINT
24 25 26 27
O M U a
22 23
CSU a
SPUa
SPUa
CSUa
SPUa
SPUa
00 01 02 03 04 05
DPUb
DPUb
GCUa
GCUa
10 11 12 13
SCUa
SCUa
DPUb
DPUb
06 07 08 09
Backplane
Rear board
Backplane
Front
board
RINT in MPS
Transport Subsystem
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page34
Backplan
e
Front
board
RINT
RINT
RINT
RINT
RINT
RINT
14 15 16 17 18 19
RINT
RINT
RINT
RINT
24 25 26 27
SPUa
SPUa
SPUa
SPUa
SPUa
SPUa
00 01 02 03 04 05
DPUb
DPUb
DPUb
DPUb
10 11 12 13
SCUa
SCUa
DPUb
DPUb
06 07 08 09
Backplane
Rear board RINT
20
RINT
21
RINT
22
RINT
23
Transport Subsystem RINT in EPS
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page35
Transport Subsystem
RINT Interface
AEUa 32 channels ATM over E1/T1/J1 interface Iub/IuCs/Iur
AOUa Two optical ports for ATM over channelized STM-1 Iub/IuCs/Iur
UOIa Four unchannelized STM-1 optical ports Iub/IuCs/Iur,
IuPs
PEUa 32 channels of IP over PPP/MLPPP over E1/T1 Iub/IuCs/Iur
FG2a Eight FE ports or two GE electrical ports Iub/IuCs/Iur,
IuPs
GOUa Two GE optical ports Iub/IuCs/Iur,
IuPs
RINT: RNC Interface Board
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page36
AEUa Board Function
Providing 32 channels of ATM over E1/T1/J1 for
Iub, Iur and Iu-CS
Supporting IMA, UNI, Fractional ATM, fractional IMA
Supporting Timeslot cross-connection
Supporting AAL2 switching
Supporting Intra-board ATM switching
Extracting line clock and outputting
synchronization signals to GCUa
Outputting synchronization signals to the
NodeB
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page37
AOUa Board Function
Providing two optical ports for ATM over
channlized STM-1 Supporting Iu-CS, Iur, and Iub interface
Supporting IMA and UNI
Supporting AAL2 switching
Supporting Intra-board ATM switching
Extracting line clock and outputting
synchronization signals to GCUa
Outputting synchronization signals to the NodeB
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page38
UOIa Board Function
Providing 4 unchannelized STM-1 optical ports Supporting ATM over SDH
Supporting Iu-CS, Iu-PS, Iur, and Iub
Extracting line clock and outputting
synchronization signals to GCUa
Outputting synchronization signals to the
NodeB
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page39
PEUa Board Function
Providing 32 channels of IP over PPP/MLPPP over
E1/T1/J1
Supporting Iu-CS, Iur, and Iub
Providing the fractional IP function
Supporting timeslot cross-connection
Extracting line clock and outputting
synchronization signals to GCUa
Outputting synchronization signals to the NodeB
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page40
FG2a Board Function
Providing 8 FE or 2 GE electrical
ports Providing IP over FE or GE
Supporting Iu-CS, Iu-PS, Iur, and Iub
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page41
GOUa Board Function
Providing two GE optical ports Providing IP over GE
Supporting Iu-CS, Iu-PS, Iur, and Iub
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page42
OM Subsystem
RINT
RINT
RINT
RINT
RINT
RINT
14 15 16 17 18 19
O M U a
20 21
RINT
RINT
RINT
RINT
24 25 26 27
O M U a
22 23
CSU a
SPUa
SPUa
CSUa
SPUa
SPUa
00 01 02 03 04 05
DPUb
DPUb
GCUa
GCUa
10 11 12 13
SCUa
SCUa
DPUb
DPUb
06 07 08 09
Backplane
Rear board
Backplane
Front
board
MPS
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page43
OM Subsystem
SCUa
SCUa
HUB
OMUa
OMUa
SCUa
SCUa
Alarm box LMT
External network
RSS
To M2000
Internal network
RBS
Ethernet cable
Serial cable
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page44
OM Subsystem OMUa: Operation and Maintenance Unit
Supporting two CPU, 2G memory
Supporting three ETH port (10/100/1000M Base-T self-adaptation)
Four USB(USB2.0) ports
Installed only in slots 20 and 21, or slots 22 and 23 in RSS
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page45
OMUa Board
1 Captive screw 2 Shielding finger
3 Ejector lever 4 LED (RUN)
5 LED (ALM) 6 LED (ACT)
7 Button (RESET) 8 Button (SHUTDOWN)
9 USB port 10 Ethernet port (ETH0)
11 Ethernet port (ETH1) 12 Ethernet port (ETH2)
13 COM port 14 VGA port
15 LED (HD) 16 LED (OFFLINE)
17 Hard disk 18 Screw for fixing the hard disk
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page46
Contents
2 BSC900 Hardware Structure
2.1 BSC6900 Cabinets and Subracks
2.2 BSC6900 Boards
2.3 BSC6900 Cables
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page47
BSC6900 Cable Distribution Figure
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page48
Main Cables Trunk Cables
75Ω coaxial cable and Y-shaped 75-ohm coaxial cable
120Ω twisted pair cable and Y-shaped 120-ohm twisted pair cable
Network Cables Straight through network cable
used to connect the OMUa board to other devices
Crossover network cable used to connect the SCU board
Optical Fibers LC/PC-SC/PC single-mode optical cable
LC/PC-FC/PC single-mode optical cable
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page49
Y-Shaped E1/T1 cable
E1/T1 cable is used to connect E1/T1/J1 port
The Y-shaped 75-ohm coaxial cable/ 120-ohm coaxial
cable Two DB44 connectors at one end
Each connector with a structure of 2 x 8 cores
The 16 micro coaxial cables form eight E1 RX/TX links
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page50
Y-shaped RNC Clock Signal Cable
One RJ45 connector end
Connected to the port CLKIN on SCUa
Two RJ45 connectors end
Connected to ports CLKOUT on 2 GCUa in the RSS subrack
(1)(2)
(1)
(1)
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page51
3
Optical Cables
LC/PC-SC/PC single-mode optical cable
LC/PC-FC/PC single-mode optical cable
It is used to connect the other NEs
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page52
Network Cable
Crossover network cable
Connecting the SCU boards
Straight-through network cable
Connecting the OMUa board with other devices
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page53
Monitoring Signal Cable of RNC Power Distribution Box
A DB9 connector at one end
A DB15 connector at the other end
X1: DB9 connector X2: DB15 connector SHELL: Metal case
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page54
RNC Alarm Box Signal Cable
Used to transmit alarm information to the alarm box
For display audible and visible warning
X1: RJ45 connector X2: DB9 connector
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page55
Contents
1 BSC6900 System Overview
2 BSC6900 Hardware Structure
3 BSC6900 Signal Flows
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page56
BSC6900 Signal Flows
Control plane message flows
Uu interface message flow
Iub/Iur/Iu interfaces message flows
User plane data flows
CS data flow
PS data flow
MBMS Service data flow
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page57
Control Plane Message Flow Uu Interface Message Flow
Intra-RNC Control Message Flow on Uu Interface
R INT
NODEBUE
NODEBUESPUa
SPUa
DPUb
DPUb
RINT
RSS
SPM SPM
RNC
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page58
RINT
SPUa
SPUa
DPUb
DPUb
RINT
SPM SPM
DRNC
RINT
SRNC
NODEBUE
Control Plane Message Flow Uu Interface Message Flow
Inter-RNC Control Message Flow on Uu Interface
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page59
NODEBUE
NODEBUE RINT
SPUa
DPUb
SPUa
DPUb
RINT
RSS
SPM SPM
RNC
Control Plane Message Flow Iub Interface Message Flow
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page60
RINT
SPUa
DPUb
SPUa
DPUb
RINT
RSS
SPM SPM
RNC
MSC/SGSN/other RNC
Control Plane Message Flow Iu/Iur Interface Message Flow
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page61
User Plane Data Flow
NODEBUE
MSC/SGSN
RINT
SPUa
DPUb
SPUa
DPUb
RINT
RSS
SPM SPM
RNC
RINT
NODEB UE
Data Flow Between Iub and Iu-CS/Iu-PS
Intra-RNC Data Flow
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page62
RINT
SPUa
SPUb
DPUa
DPUb
RINT
SPM SPM
DRNC
RINT
SRNC
NODEBUE
RINT
MSC/SGSN
User Plane Data Flow Data Flow Between Iub and Iu-CS/Iu-PS
Inter-RNC Data Flow
Copyright © 2007 Huawei Technologies Co., Ltd. All rights reserved. Page63
NODEBUE
RINT
DPUb
SPUa
RINT
RSS
SPM
RNC
CSUa
SGSN
User Plane Data Flow MBMS Service Data Flow
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