ore002101 cdma2000 bsc hardware system (large capacity) issu
TRANSCRIPT
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Wireless Curriculum Development SectionWireless Curriculum Development SectionWireless Curriculum Development Section
ISSUEISSUE
ORE002101 CDMA2000 BSC
Hardware System (large capacity)ORE002101 CDMA2000 BSCORE002101 CDMA2000 BSC
Hardware System (large capacity)Hardware System (large capacity)
3.43.4
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ContentsContents
Overview
CSWS
CIPS
CRPS
Clock System
Windup
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A CDMA NetworkA CDMA Network
BSC/PCF
BSC/PCF
PDSN
MSC
PLMN
A3/A7
A1/A2
A1/A2
A10/A11
BTSSoftsiteMS
MS
Internet
Abis
Abis
PSTN
ISDNBTS
A10
/A11
MS: Mobile StationPCF: Packet data Control Function
PDSN: Packet Data Service NodeBSC: Base Station Controller
MSC: Mobile Switching CenterBTS: Base Transceiver Station
Overview
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Rack DistributionRack Distribution
l CDMA Switch Subrack (CSWS)
l CDMA Integrated Processing Subrack (CIPS)
l CDMA Resource and Packet Subrack (CRPS)
l CDMA Packet Module Subrack (CPMS)
l CLocK processing Module (CLKM)
l CDMA Integrated Management System (CIMS)
Large capacity BSC is divided into following functional
blocks. In general each block corresponds to single
subrack. These are:
Overview
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To/from MSC
To / from PDSN
Optical fiber
To / from NMSLAN
E1
GE
Ethernet
Optical fiber
Optical fiber
CIPS
CIMS
CPMS
CRPS
CSWS
CLKM
To / from PDSNGE
Rack DistributionRack DistributionOverview
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Configuration for 120,000 SubscribersConfiguration for 120,000 Subscribers
n BHCA: 240k
n Voice traffic volume: 2,400Erl
n Um interface: 54,000TCE (traffic channel element)
n A-interface: 38400CIC,1280E1
n Abis interface: 960E1
n 3840 Sector Carriers
n 1,200k Voice Subscribers(0.02Erl/sub)
n 70,000 PPP connections
n 5,000 active PPP connections
n Total flow of packet data: 200Mbps
Overview
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CCTR (CDMA
Controller Rack)
CBUR (CDMA
BUsiness Rack)
Overview
Power distribution box
Cabling Through
Air guide subrack
Fan boxCable trough
Air guide subrack
Fan boxCable trough
Keyboard
Dummy panel
Lanswitch
Dummy Panel
CLKM
Lanswitch
BAM Server
BAM ServerBAM Server
LCD
CSWS
CRPS/
CRMS
CLKM
Cabling though
Dummy panel
Air guide subrack
Fan boxCable trough
Power distribution box
Fan boxCable trough
Fan boxCable trough
Air guide subrack
CIPS/
CPMS
CIPS/CPMS
CIPS/
CPMS
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ContentsContentsBSC Hardware
Overview
CSWS
CIPS
CRPS
Clock System
Windup
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Boards Position in CSWSBoards Position in CSWS
14131211109876543210
C
SA
R
C
NE
T
C
NE
T
C
LP
C
C
LP
C
C
MP
U
C
MP
U
CSWS
C
LP
C
C
LP
C
C
LP
C
C
LP
C
C
LP
C
C
LP
C
C
LP
C
C
LP
C
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Functional Diagram of CSWSFunctional Diagram of CSWS
CLPC
CLPC
CNET
Other boardsOther boards
Other boardOther board
Overview
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CLPCCLPCBoards int roduct ion
Controlling unit of line interface card
Provide eight 155Mbps ATM-over-SDH optical interfaces
Guarantee the ATM QoS
CLPC is responsible for:
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Fast switching of fixed length-packets
CNETCNET
40 switching network ports
Synchronization clock function
Boards int roduct ion
CNET is responsible for:
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CNETCNETBoards int roduct ion
Clockmodule
RUNCLK
ACT
CLK IN0
CLK IN1
CLK OUT0
CLK OUT1
CLK IN2
CLK IN3
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Managing & allocating the resources of CNET
CMPUCMPU
Processing the signaling
Managing & maintaining the boards in CSWS
Boards int roduct ion
CMPU is responsible for:
Controls the active/standby switch over
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CMPUCMPUBoards int roduct ion
IDE Hard Disk
RUN
ALMACT
RESET
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Traffic FlowTraffic FlowCSWS
C
M
UX
CM
U
X
C
N
E
T
C
L
P
C
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Maintenance FlowMaintenance FlowCSWS
C
L
PC
C
S
AR
C
N
ET
C
MU
X
C
M
P
U
BAM
Bus
Bus
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ContentsContentsBSC Hardware
Overview
CSWS
CIPS
CRPS
Clock System
Windup
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Boards Position in CIPSBoards Position in CIPS
1514131211109876543210
C
AI
E
C
SP
U
C
SP
U
C
LA
P
C
EV
C
C
EV
C
C
MU
X
C
MU
X
C
EV
C
C
EV
C
C
FM
R
C
FM
R
C
FM
R
C
XI
E
Overview
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Functional Diagram of CIPSFunctional Diagram of CIPS
A1/A2 physical
interface
Abis
Physical
interface
Signaling control
Speech encoding
and decoding
Service
frame
selection,
&
data
allocation
CRPSCRPS
MSCMSC
Abis OMLAbis OML
Abis signalingAbis signaling
Abis trafficAbis traffic
Overview
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The switching & multiplexing functions of ATM services
CMUXCMUX
AAL2 switching function
Synchronization clock function
Manages & monitors the software loading of all boards in
CIPS
Monitors the power of subrack, fan box and environment
operating status
Boards int roduct ion
CMUX is responsible for:
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CMUX AppearanceCMUX AppearanceBoards int roduct ion
ETH
1PPS
COM1
COM2
RUN
ALM
ACT
RESET
TX
RX
Optical Module
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CXIECXIE
24 standard E1/T1 interfaces
Providing a processing capability of 24 E1/T1 IMAs and
supporting pure ATM over E1 mode (UNI mode)
the channels for inter-working between CIPS and CRPS
the function of AAL2 switching and AAL5 transparent
transmission, while providing the Abis interface betweenBTS and BSC
Boards int roduct ion
CXIE is responsible for:
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CXIE AppearanceCXIE Appearance
To CRPS
To BTS
Boards int roduct ion
To BTS
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CFMRCFMR
Selection/DistributionSelection/Distribution
BTS1 BTS2
Power controlPower control
Service
Frame
Service
Frame
Frame protocol
processing
Frame protocol
processingFrame protocol
processing
Frame protocol
processing
Best Frame
Multiplexing/DemultiplexingMultiplexing/Demultiplexing
LAC SARLAC SAR
LAC PDU
TRAU frameTRAU frame RLPRLP
CSPUCSPU CEVCCEVC CPPUCPPU
Boards int roduct ion
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CFMR AppearanceCFMR Appearance
RUN
ALM
ACT
Boards int roduct ion
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CEVCCEVC
Supports three types of coding: EVRC, QCELP8K and
QCELP13K
lPerform ISLP rate adaptation for circuit data services
below 64Kbps
l Checks and inserts DTMF signals
l Provides the echo cancellation functionbetween BSC & MSC (CEVD could not support this )
Boards int roduct ion
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CLAPCLAP
Process the A1/A2 signaling (Layer2)
Measure, maintain and troubleshoot the A1/A2 signaling
Boards int roduct ion
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CSPUCSPU
Process the upper-layer signaling including:
Um interface
Abis interface
A1/A2 interface
A3 interface A7 interface
A9 interface
Allocate various resources required during signaling and
traffic connections setup
Boards int roduct ion
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CAIECAIE
Provide 32 E1/T1 interfaces
TDM switching and rate conversion
Clock extraction
Boards int roduct ion
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CAIE AppearanceCAIE Appearance
S5 S4 S9 S8
S6
S7
S11
S12S15S18
S3 S2 S16 S17 S10 S13
J18
RUN
ALM
ACT
CLK1
E1/T1
CLK2
E1/T1
E1/T1
E1/T1
To GCKP
MSC
Boards int roduct ion
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Voice Traffic Flow in CIPSVoice Traffic Flow in CIPS
CXIE CFMR CMUX CEVC CAIE
ATM Bus
Extended TDM Bus
TDM Bus
Funct ions
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Data Traffic Flow in CIPSData Traffic Flow in CIPS
CXIE CFMR
ATM Bus
CBTS CRPS
Funct ions
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Voice Signaling Flow in CIPSVoice Signaling Flow in CIPS
CXIE CFMR CSPU CMUX CAIE
ATM BUS
Expand TDM Bus
TDM BUS
CLAP
Out-band signaling
Funct ions
In-band signaling
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Data signaling Flow in CIPSData signaling Flow in CIPS
CXIE CFMR CSPU
ATM Bus
Out-band signaling
To CRPSIn-band signaling
To CBTS
Funct ions
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ContentsContents
Overview
CSWS
CIPS
CRPS
Clock System
Windup
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Boards Position in CRPSBoards Position in CRPS
1514131211109876543210
C
XI
E
C
PP
U
C
PP
U
C
BP
U
C
HA
C
C
MU
X
C
MU
X
C
HA
C
C
PC
U
C
PC
U
C
RM
U
C
RM
U
C
BP
U
C
XI
E
CRPS
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Provide periodicaltime synchronization
Packet dataservice processing
Functional Diagram of CRPSFunctional Diagram of CRPS
Provide A3/A7physical interface
Resource
management
From CIPS
From original CIPS
To CIPSFrom CLKM
To PDSN
To target CIPS
CRPS
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CMUXCMUX
Manage & maintain the boards in CRPS
lProvide RFN for the system
Note:
l The CMUX in the CRPS is the same as the CMUX in the CIPS.
Boards Int roduct ion
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CXIECXIE
Provide inter-BSC A3/A7 interface, and channel
between CIPS and CRPS
lOffer 24 standard E1s/T1s
Note:
l The CXIE boards in CRPS and CXIE are the same
Boards Int roduct ion
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CRMUCRMU
Note:
l The CRMUs hardware structure is the same as that of CSPUs,so the indicator meaning of CRMU are also the same.
Process the A3, A7 and A9 interfaces signaling
Maintenance management and distribution of the
A2, A3 and A8 interface resources
Boards Int roduct ion
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CPPUCPPU
Store and transfer the data packets
Work in load sharing to achieve resource
pool mechanism
Note:
l The CPPUs hardware structure is the same as that of CSPUs
l The indicator states are also similar to the CSPU indicators.
Boards Int roduct ion
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A9
CPCUCPCU
Signaling Processing A11
CBPU and PPU Session ID
management
Setup of signaling and traffic
connection
Packet call status maintaining
Note:
l The CPCUs hardware structure is the same as that of CSPUs.
l The indicator states are also similar to the CSPU indicators.
Boards Int roduct ion
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CBPUCBPU
Downlink data buffering, processing and transferring
Note:
lThe CBPUs hardware structure is the same as that of CSPUs.
lThe indicator states are also similar to the CSPU indicators.
Work in load sharing mode to achieve resource pool
mechanism
Re-sequencing the packet sent from PDSN
(transferred via CHAC)
Boards Int roduct ion
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CHACCHAC
Transfer the traffic data (A10 interface) from PDSN to CBPU
Process the traffic data (A8 interface) from CPPU and SDB data
from CPCU, and transfer them to PDSN via the A10 interface
Transfer A11 signaling data from PDSN to CPCU directly
Provide 1000Mb Ethernet interface to PDSN and support RFC826
(Ethernet ARP) protocol
Boards Int roduct ion
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CHAC AppearanceCHAC Appearance
RUN
ALM
RESET
O1GIE
TX
RX
SW 1
TX
RX
Boards Int roduct ion
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Downlink Data Flow in CRPSDownlink Data Flow in CRPS
CHAC CBPU CPPU CXIE
To PDSN To CIPS
ATM Bus
Funct ions
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Uplink Data Flow in CRPSUplink Data Flow in CRPS
CHAC CBPU CPPU CXIE
To PDSN To CIPS
ATM Bus
Funct ions
Bypass the CBPU
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Signaling flow in CRPSSignaling flow in CRPS
CHAC CPCU CRMU CXIE
To PDSN To CIPS
ATM Bus
Funct ions
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ContentsContentsBSC Hardware
Overview
CSWS
CIPS
CRPS
Clock System
Windup
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CPMSCPMSFunct ions
CDMA Packet Module Subrack provides PCF functions, it accomplishes the:
Connection management, mobility management, charging, short
data burst & MD5 encryption
Convert A8 interface data to A10 and vice versa
Provides GRE and IP route displacement and forwarding function
Note: If data throughput is less than 40Mb then only CRPS is enough. For more
throughput we need to configure CPMS.
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CPMSCPMSFunct ions
1514131211109876543210
C
P
CU
C
P
PU
C
M
UX
C
M
UX
C
B
PU
C
H
AC
C
H
AC
C
B
PU
C
B
PU
C
B
PU
C
B
PU
C
P
PU
C
P
PU
C
P
PU
C
P
PU
C
P
CU
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ContentsContentsBSC Hardware
Overview
CSWS
CIPS
CRPS
Clock System
Windup
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CLKMCLKM
CLKM (CLocK processing Module ) is composed of two parts:
l GCKP (GPS/GLONASS & ClocK Processing Board )
l GCKB (Backplane of CLKM )
RUN
ALM
ACTCOM IN0 IN1 OUT ANT
CLK_B COM_B ETH_B CLK_A COM_A ETH_A
Panel of GCKB
Panel of GCKP (Active/Standby)
Funct ions
RUN
ALM
ACTCOM IN0 IN1 OUT ANT
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BSCCloc
kSystemStructure
BSCCloc
kSystemSt
ructure
CLKM
CLKC
C
N
E
T
C
M
P
U
CSWS
C
L
P
CC
B
P
U
C
M
U
X
C
P
P
U
C
P
C
U
C
X
I
E
C
M
U
X
C
B
P
U
C
R
M
U
C
P
P
U
BITS clock source
2MHz circuit clock extracted from A-Interface
CPMS
CRPS
RFN cell
8k 32M
8k 32M
MSC
A1/A2
Abis
PDSN
A10/A11
GCKP GCKP
C
S
P
U
C
M
U
X
C
F
M
R
C
X
I
E
CIPS
RFN pulse
8k 32M
RFN cell
8k
PP16S
absolute time infomation
C
E
V
C
C
L
A
P
C
A
I
E
BTS
C
H
A
C
C
P
C
U
C
H
A
C
PDSN
A10/A11
A3/A7BSC
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Physical ConnectionPhysical ConnectionFunct ions
GCKP
MSCCRPS
CMUX CMUX
Active time
reference sourceStandby time
reference sourceAbsolute time
information
8k
PP16S
GCKPCLKM
CAIE
CXIE
CIPS
CAIE
CXIE
CIPS
BTS BTS
MSC
GCKB
8k
PP16S
CMUX CMUX
CLPC CLPC
CNET CNET
CSWS
Absolute timeinformation
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ContentsContents
Overview
CSWS
CIPS
CRPS
Clock System
Windup
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Software Loading FlowSoftware Loading Flow
BAM
CMUX
in CRPS
Other boards
in CRPS
CMUX
in CIPS
Download
Data/Software
Download
Data/Software
Other boards
In CIPS
GCKB
In
CLKM
Windup
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Voice Signaling FlowVoice Signaling FlowWindup
C
L
P
C
C
N
E
T
C
X
I
E
C
F
M
R
C
M
U
X
C
S
P
U
C
L
A
P
C
A
I
E
C
B
T
S
C
M
S
C
CSWS
CIPS
TDM switching
AAL2 switching
AAL2 termination
TDM bearingAAL2 bearing
AAL5 bearing
In-bandsignaling SS7
signaling
Abis
A1
In-bandsignaling
MS
Um
Out-bandsignaling
C
R
M
U
C
M
U
X
CRPS
C
X
I
E
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Voice Traffic FlowVoice Traffic FlowWindup
CX
I
E
CF
M
R
CM
U
X
CE
V
C
CE
V
C
CA
I
E
C
B
T
S
C
M
S
C
CIPS
TDM switching
AAL2 switching
AAL2 termination
TDM bearing
AAL2 bearing
Abis
A2
MS
Um
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Packet Data Signaling FlowPacket Data Signaling FlowWindup
C
L
P
C
C
X
I
E
C
F
M
R
C
M
U
X
C
S
P
U
C
L
A
P
C
A
I
E
C
B
T
S
CSWS
CIPS
AAL2 switching
AAL2 termination
AAL2 bearing
AAL5 bearing
In-bandsignaling
Out-bandsignaling
C
N
E
T
Ethernet bearing
AbisMS
Um
SS7signaling
C
M
S
CA1
C
X
I
E
C
R
M
U
C
H
A
C
P
D
S
N
CRPS
C
P
C
U
A11
C
M
U
X
TDM switching
TDM bearing
CPMS
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PacketD
ataTraffic
Flow
PacketD
ataTraffic
Flow
Windup
C
L
P
C
C
X
I
E
C
F
M
R
C
M
U
X
C
S
P
U
C
L
A
P
C
A
I
E
C
B
T
S
CSWS
CIPS
AAL2 switching
AAL2 termination
AAL2 bearing
AAL5 bearing
In-bandsignaling
Out-bandsignaling
C
N
E
T
Ethernet bearing
AbisMS
Um
SS7
signaling
C
M
S
CA1
C
X
I
E
C
R
M
U
CRPS
C
M
U
X
TDM switching
C
H
A
C
P
D
S
N
C
P
C
U
A11
C
M
U
X
TDM bearing
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7/27/2019 ORE002101 CDMA2000 BSC Hardware System (Large Capacity) ISSU
66/67
QuestionsQuestions
Q. State the traffic flow in BSC system?
Q. State the signaling flow in BSC system?
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7/27/2019 ORE002101 CDMA2000 BSC Hardware System (Large Capacity) ISSU
67/67