Ore010101 Cdma20001 Bsc Hardware 1.0

7/27/2019 Ore010101 Cdma20001 Bsc Hardware 1.0

http://slidepdf.com/reader/full/ore010101-cdma20001-bsc-hardware-10 1/113



HUAWEI TECHNOLOGIES CO., LTD. All rights reserved

Upon completion of this course, you will

be able to know:

The structure of Huawei BSC.

Functions of all boards in BSC.




Chapter 1 Overview

Chapter 2 Subrack

Chapter 3 Subsystem

Chapter 4 Summary




Chapter 1 Overview

1.1 Network Structure

1.2 BSC6600 Appearance

1.3 System Configuration




Chapter 1 Overview





http://slidepdf.com/reader/full/ore010101-cdma20001-bsc-hardware-10 7/113HUAWEI TECHNOLOGIES CO., LTD. All rights reserved

BSC6600 Appearance

CRPS

Power distribution box

2U

9U

2U

1U

1U

1U

2U

1U

1U

1U

KVM

CSWS

Cable trough

Fan box

Fan box

Dummy panel

Cable trough 1U

1U

1U

Air deflector

BAM

Cabling frame

CLKM

LAN Switch

2U

Air deflector

9U

B68-21 CCTR

1UCable trough

LAN Switch 1U

1ULAN Switch

1UCable troughLAN Switch 1U

CIPS/CPMS

Power distribution box

2U

9U

9U

2U

1U

1U

2U

1U

1U

CIPS/CPMS

Cable trough

Fan box

Fan box

Dummy panel

Cable trough 1U

1U

1U

Air deflector

Air deflector

9U

B68-21 CBUR

Cable trough

Fan box

CIPS/CPMS

CBUR(CDMA

BUsines

s Rack)

CCTR(CDMA

Controller

Rack)

BAM

CRPS

CSWS

CIPS/CPMS

CIPS/CPMS

CIPS/CPMS

BAM




Chapter 1 Overview







System Configuration (Large Capacity)

CSWS

CRPS

CIMS

CIPS

CLKM

CPMS

BTS

MSC

NMS

PDSN

Other BSC

E1/T1/FE

E1/T1/FE

E1/T1/FE

FE

GE

Optical Fiber

Optical Fiber

Optical Fiber

FE




Typical Hardware Configuration

Capacity Subrack/Moduleconfiguration

Board configuration

200,000 voice

subscriber and

400 Mbit/s data

throughput

CLKM 1

CSWS 1 CMPU 2, CNET 2, CLPC 4

CRPS 1 CRMU 2, CMUX 2

CPMS 4CHAC 2, CPCU 2, CMUX 2,

CBPU 5, CPPU 5

CIPS 10 (CDMA2000 1X

service processing entity)

CBIE 1, CFMR 3, CEVC 4, CMUX

2, CLAP 1, CSPU 2, CAIE 1

CIPS 4 (CDMA2000 1x

EV-DO service processing

entity)

CBIE 2, CFMR 10

CMUX 2, CSPU 2

CIMS 1





CapacitySubrack/Module

configurationBoard configuration

320,000 voice

subscriber and

200 Mbit/s data

throughput

CLKM 1

CSWS 1 CMPU 2, CNET 2, CLPC 4

CRPS 1 CRMU 2, CMUX 2

CPMS 2CHAC 2, CPCU 2, CMUX 2,

CBPU 5, CPPU 5

CIPS 16 (CDMA2000 1X




CIMS 1




System Configuration (Small Capacity)

CRPS

CIMS

CIPS

CLKM

CPMS

BTS

MSC

NMS

PDSN

Other BSC

E1/T1/FE

E1/T1/FE

E1/T1/FE

FE

GE

Optical Fiber

Optical Fiber

FE

PDSNGE





CapacitySubrack/Module

configurationBoard configuration

140,000 voice

subscriber and

40 Mbit/s data

throughput

CLKM 1

CRPS 1CLIU 4, CRMU 2, CMUX 2, CPCU

2, CHAC 2, CBPU 2, CPPU 2

CIPS 7 (CDMA2000 1X




CIMS 1




Chapter 1 Overview

Chapter 2 Subrack

Chapter 3 Subsystem

Chapter 4 Summary




Chapter 2 Subrack

2.1 CSWS (Optional)

2.2 CIPS

2.3 CRPS

2.4 CPMS




CSWS

CSWS: CDMA SWitch Subrack




CSWS

C

MP

U

C

MP

U

C

LP

C

C

LP

C

C

LP

C

C

LP

C

C

LP

C

C

NE

T

C

NE

T

C

LP

C

C

LP

C

C

LP

C

C

LP

C

C

LP

C

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14




Functional Diagram of CSWS

CNET

CLPC Other subracks

BAM

Other subracksCLPC

CMPU




CMPU

IDE Hard Disk

RUN ALM ACT

RESET

CMPU: CDMA Main Process Unit

Management proxy for other

subracks

Managing & maintaining the

boards in CSWS

Power supply Indices and board

dimensions:

Input voltage: –36 V to –72 V

Power consumption: 25 W

Dimensions: 366.7 mm x 340

mm [14.44 in. x 13.39 in.]




CMPU Panel Description

RUN

ALM

ACT

RESET

RUN: Board status indicator

Normal status : Flashing

4Hz: The CMPU is being reset and starting up.

Other periods: the CPU of the CMPU is running.

ALM: Alarm indicator

Normal status : Off

On (or fast flashing): Fault occurs.

ACT: Active/standby status indicator On: The CMPU is in the active state.

Off: The CMPU is in the standby state.




CMPU Panel Description

RUN

ALM

ACT

RESET

RESET: Press it to resetthe CMPU.

RJ45 socket with indicators: Self-adaptive10/100 Mbps Ethernet interface. The socket isequipped with connection and transceiving indicators.

connection indicator: on----the connected network runsnormally.

transceiving indicator: flashing----data transceiving is inprocess.

Serial port 1,2: Connected with the console or Modem to fulfill remote maintenance.




CLPC

CLPC: CDMA Line ProCess unit

Provide optical ports to

connect subrack

Power Supply and Board

Dimensions




mm [14.44 in. x 13.39 in.]

I/Ointerface unit

I/O interface unit

RUN




CLPC Panel Description

RUN

04CD

0

1

2

3

RX

TX

04CD

0

1

2

3

RX

TX

RUN: Board status indicator

0.5s on and 0.5s off: The CLPC runs normally.

On or Off: The CLPC is faulty.

The CLPC offers eight 155 Mbit/s ATM optical

interfaces.




CNET

CNET: CDMA NETwork transfer

and switch unit

ATM Switching

Power Supply Indices and Board

Dimensions




mm [14.44 in. x 13.39 in.]

Clockmodule

RUN CLK

ACT CLK IN0 CLK IN1 CLK OUT0 CLK OUT1 CLK IN2 CLK IN3




ACT: Active/standby status indicator of clock plane

On: In the active state.

Off: In the standby state.

RUN

CLK

ACT

CLK IN0

CLK IN1

CLK OUT0

CLK OUT1

CLK IN2

CLK IN3

CNET

RUN: Board status indicator 0.5s on and 0.5s off: The CNET operates normally.

On or Off: The CNET operates abnormally.

CLK: Clock status indicator 0.125s on and 0.125s off: In the fast pull-in status.

3s on and 1s off: In the locked status.

3s off and 1s on: In the holdover status.

1s on and 1s off: In the free-run status.




Traffic Flow

C

M

U

X

C

M

U

X

C

N

E

T

C

L

P

C




C

L

P

C

C

N

E

T

C

MU

X

C

M

P

U

BAM

Bus

Bus

Maintenance Flow




Chapter 2 Subrack

2.1 CSWS (Optional)

2.2 CIPS

2.3 CRPS

2.4 CPMS




CIPS

CIPS: CDMA Integrated Processing Subrack




Functional Diagram of CIPS

Service

frameselection,

frame

allocation

Multiplexing

/De-

multiplexing

Abis

Physical

interface

Signaling

processing

Circuit data

processing

Speech encoding

and decoding

A1/A2

physical

interface

Packet to CRPS /CPMS

MSC

CRPS/CPMS

Abis OML

Abis signaling

Abis traffic




CMUX

CMUX: CDMA system MUltipleXer

unit

Switching & Multiplexing of

ATM, Interface board for

connecting to CSWS Power Supply and Board

Dimensions



Board dimensions: 366.7 mm x

340 mm [14.44 in. x 13.39 in.]

ETH 1PPS COM1 COM2

¹â¿Û°å

RUN ALM ACT

RESET

TX RX

Optical Module




CMUX Panel Description

RES

RUN: Operation indicator ON: There is power input and the CMUX is faulty.OFF: There is no power input or the CMUX is faulty.

Flashing at 0.5 Hz: The CMUX is in normal operation.

Flashing at 4 Hz: The CMUX is being loaded.

Flashing at 0.25 Hz: The CMUX is under self-test.

ALM: Alarm indicator. Normal Status: OFFACT: Active/standby status indicator. ON: active / OFF: standby





RESET: Resetting the CMUX

In a small-capacity BSC with the CLIU in the CRPS, theTX/RX interface of the CMUX in the CIPS is connected tothe RX/TX in the CLIU in the CIPS.In a large-capacity BSC, the TX/RX is connected to theRX/TX in the CLPC in the CSWS.

ETH: Connected to the network port in LAN Switch sothat the CIMS can maintain the subrack.

RES





Optical subboard

J18

J19

J21

Short-circuitedNot short-circuited

(default)

J18

The CMUX is

under debugging.

The CMUX is in normaloperation.

J19CPU A is under

debugging.

CPU A is in normal

operation.

J21CPU B is under

debugging.

CPU B is in normal

operation.




CBIE

CBIE: CDMA Base station

Interface Equipment

Interface board for Abis or

A3/A7(in CRPS), Support ATM

link Power Supply and Board

Dimensions




340 mm [14.44 in. x 13.39 in.]J18

RUN

ALM

ACT

CLK1

E1/T1

CLK2

E1/T1

E1/T1

E1/T1

S14S12

S13

S11

S10

S6

S5

S15

S16

S9

S8

S7

S17

J19 J18

J21




CBIE Panel Description

RU

AL

AC

CL

E1/T1

CL

E1/T1

E1/T1

E1/T1

RUN: Operation indicator ON: There is power input and the CBIE is faulty.OFF: There is no power input or the CBIE is faulty.

Flashing at 0.5 Hz: The CBIE is in normal operation.

Flashing at 4 Hz: The CBIE is being loaded.

Flashing at 0.25 Hz: The CBIE is under self-test.





IMA in CBIE

µÍËÙÎïÀíÁ ́Â·

High -rate ATM flow High -rate ATM flow

IMA Processing

Module

E1

Interface

Module

1#E1

2#E1

n#E1

… ...

E1

Interface

Module

IMA

Processing

Module

IMA

ChipIMA

Chip

IMA: Inverse Multiplexing over ATM





Supporting ATM over fractional E1/T1

Providing the User-to-Network Interface (UNI) in

the ATM over fractional E1/T1 mode and

transferring ATM cells in the specified timeslots on

one E1/T1 Providing the inverse multiplexing over ATM (IMA)

processing of 32 E1s/T1s

Providing the Abis interface between the BTS and

the BSC and performing AAL2 switching and AAL5 transparent transmission

Providing 32 E1/T1 electrical interfaces

RU

AL

AC

CL

E1/T1

CL

E1/T1

E1/T1

E1/T1

32 E1/T1

cables

3

1

.

.

.

.

.

.

.

.

.

.

10




J18

S14S12

S13

S11

S10

S6

S5

S15

S16

S9

S8

S7

S17

J19 J18

J21


Short-

circuited

Not short-circuited

(default)

J21 The CMUX

is under

debugging.

The CBIE is in

normal operation.

J19 Subsystem

A is under

debugging.

Subsystem A is in

normal operation.

J18 SubsystemB is under

debugging.

Subsystem B is innormal operation.





DIP Switch on CBIE

S17, S16, S15, S5, S6,

S10, S11, S13, S14:

Impedance matching

selection of E1/T1 cablesS7, S8, S9, S12: TX PGND

(Protection Ground ) switch

of E1/T1 cables

J18

S14S12

S13

S11

S10

S6

S5

S15

S16

S9

S8

S7

S17

J19 J18

J21




CFMR

CFMR: CDMA radio frame

processing board

Combining/ Distribution, Signal

Multiplexing/De-multiplexing

Power supply indices and boarddimensions:




340 mm [14.44 in. x 13.39 in.]




Functional Diagram of CFMR

Selection/Distribution

BTS1 BTS2

Power control

Service Frame Service Frame

Frame protocol

processing

Frame protocol

processing

Best Frame

Multiplexing/Demultiplexing

LAC SAR

LAC PDU

TRAU frame RLP

CSPU CEVC CPPU




CFMR Panel Description

RUN: Operation indicator ON: There is power input and the CFMR is faulty.OFF: There is no power input or the CFMR is faulty.

Flashing at 0.5 Hz: The CFMR is in normal operation.

Flashing at 4 Hz: The CFMR is being loaded.

Flashing at 0.25 Hz: The CFMR is under self-test.





CFMR Panel Description

J7

J17

Short-

circuited

Not short-circuited

(default)

J7 The CFMR

is under

debugging.

The CFMR is in

normal operation.

J17 The CFMR

is under

debugging.

The CFMR is in

normal operation.




CEVC

CEVC: CDMA Enhanced Vocoder

with echo Canceller board

Voice Code Convert & Echo

Canceller, Checks and inserts

DTMF signals Power supply indices and board

dimensions:




340 mm [14.44 in. x 13.39 in.]




CEVC Panel Description

RUN: Operation indicator ON: There is power input and the CEVC is faulty.OFF: There is no power input or the CEVC is faulty.

Flashing at 0.5 Hz: The CEVC is in normal operation.

Flashing at 4 Hz: The CEVC is being loaded.

Flashing at 0.25 Hz: The CEVC is under self-test.





CEVC Panel Description

J7

J17Short-

circuited

Not short-circuited

(default)

J7 The CEVCis under

debugging.

The CEVC is innormal operation.

J17 The CEVC

is under

debugging.

The CEVC is in

normal operation.




CLAP

CLAP: CDMA Link Access

Protocol board

Process MTP2 Message

Power supply Indices and board

dimensions


DC


Dimensions: 366.7 mm x 340mm [14.44 in. x 13.39 in.]




CLAP Panel Description

RUN: Operation indicator ON: There is power input and the CLAP is faulty.OFF: There is no power input or the CLAP is faulty.

Flashing at 0.5 Hz: The CLAP is in normal operation.

Flashing at 4 Hz: The CLAP is being loaded.

Flashing at 0.25 Hz: The CLAP is under self-test.





CLAP Panel Description

J7

J17

Short-

circuited

Not short-circuited

(default)

J7 The CLAPis under

debugging.

The CLAP is innormal operation.

J17 The CLAP

is under debugging.

The CLAP is in

normal operation.




CSPU

CSPU: CDMA Signal Process Unit

Process High Level Signaling

Power supply indices and board

dimensions: Input voltage: -36 V to -72 V



340 mm [14.44 in. x 13.39 in.]

J23

J22

RST CPUA

RUN

ALM

ACT

ETH1

ETH2




CSPU Panel Description

RUN: Operation indicator ON: There is power input and the CSPU is faulty.OFF: There is no power input or the CSPU is faulty.

Flashing at 0.5 Hz: The CSPU is in normal operation.

Flashing at 4 Hz: The CSPU is being loaded.

Flashing at 0.25 Hz: The CSPU is under self-test.


RUN

ALM

ACT

ETH1

ETH2Unused




CSPU Panel Description

J23

J22

RST CPUA

Short-

circuited

Not short-circuited

(default)

J22 The CSPU

is under

debugging.

The CSPU is in

normal operation.

J23 The CSPU

is under

debugging.

The CSPU is in

normal operation.

RSTCPUA

Button used for resetting theCPU system




CAIE

CAIE: CDMA A-Interface

Equipment

Interface board for A1/A2,

Clock extraction

Power Supply and BoardDimensions



Board dimensions: 366.7 mmx 340 mm [14.44 in. x 13.39

in.]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




CAIE Panel Description

RU AL

AC

CL

E1/T1

CL

E1/T1

E1/T1

E1/T1

RUN: Operation indicator ON: There is power input and the CAIE is faulty.OFF: There is no power input or the CAIE is faulty.

Flashing at 0.5 Hz: The CAIE is in normal operation.

Flashing at 4 Hz: The CAIE is being loaded.

Flashing at 0.25 Hz: The CAIE is under self-test.






Providing E1/T1 interfaces

TDM switching and rate converting

Clock extracting

Providing 32 E1/T1 electrical interfaces

RU AL

AC

CL

E1/T1

CL

E1/T1

E1/T1

E1/T1

32 E1/T1

cables

3

1

.

.

.

.

.

.

.

.

.

.

10CLK1: Output interface 1 for 2 MHz clock reference sourceCLK2: Output interface 2 for 2 MHz clock reference source

CLK1 and CLK2 share the same source




S5 S4 S9 S8

S6

S7

S11

S12S15S18

S3 S2 S17 S13S16 S10

J21

J22


Short-

circuited

Not short-circuited

(default)

J21 The CAIEis under

debugging.

The CAIE is innormal operation.

J22 The CAIE

is under

debugging.

The CAIE is in

normal operation.





DIP Switch on CAIE

S2, S3, S15, S18, S4, S5,

S6, S7, S11, S12, S16,

S17 : Impedance

matching selection of E1/T1 cables

S8, S9, S10, S1: TX

PGND (Protection

Ground ) switch of E1/T1

cablesS5 S4 S9 S8

S6

S7

S11

S12S15S18

S3 S2 S17 S13S16 S10

J21

J22




CIWF (Optional)

CIWF: CDMA Inter Working

Function board

Support Circuit Data Service

Power supply indices and board

dimensions:




mm [14.44 in. x 13.39 in.]

1 2 3 4

1

2

3

4

1

2

3

4

S4

S3

S5 ON

ON RUN

ALM

RESET

E T H

E 1 - 3

E 1 - 2

E 1 - 1

E 1 - 0




CIWF Panel Description

RUN

ALM

RESET

E T H

E 1 - 3

E 1 - 2

E 1 - 1

E 1 - 0

RUN: Operation indicator ON: There is power input and the CIWF is faulty.OFF: There is no power input or the CIWF is faulty.

Flashing at 0.5 Hz: The CIWF is in normal operation.

Flashing at 4 Hz: The CIWF is being loaded.

Flashing at 0.25 Hz: The CIWF is under self-test.

ALM: Alarm indicator. Normal Status: OFF




CIWF Panel Description

RUN

ALM

RESET

E T H

E 1 - 3

E 1 - 2

E 1 - 1

E 1 - 0

Interface ID Usage Connection Relation

ETH Ethernet interface Network interface used for debugging.Reserved.

E1-0 E1 interface No.0 E1 No.0 outlet. Reserved.




RESET: Resetting theCIWF




Voice Traffic Flow in CIPS

CBIE CFMR CMUX CEVC CAIE

ATM Bus

Expanded TDM Bus

TDM Bus




Data Traffic Flow in CIPS

CBIE CFMR

ATM Bus

CBTS CRPS

CMUX




Voice Signaling Flow in CIPS

CBIE CFMR CSPU CMUX CAIE

ATM BUS

Expanded TDM Bus

TDM BUS

CLCB

Out-band

Signaling

In-band Signaling




Data Signaling Flow in CIPS

CBIE CFMR CSPU

ATM Bus

Out-band signalingTo CRPS

In-band signaling

To CBTS

CMUX




Chapter 2 Subrack

2.1 CSWS (Optional)

2.2 CIPS

2.3 CRPS

2.4 CPMS




CRPS

CRPS: CDMA Resource and Packet Subrack




CRPS

C

B

I

E

C

B

P

U

C

R

M

U

C

R

M

U

C

P

C

U

C

P

C

U

C

H

A

C

C

M

U

X

C

M

U

X

C

H

A

C

C

B

P

U

C

P

P

U

C

P

P

U

C

B

I

E

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15




Functional Diagram of CRPS

Resource

management

Provide A3/A7physical interface

Packet data

service processing

Provide periodical

time synchronization

From original CIPS

From original CIPS

To CIPSFrom CLKM

To PDSN

To target CIPS




CMUX

NOTE:

The CMUX in the CRPS is the same as the CMUX in the CIPS.

Except ...

Manage & maintain the boards in CRPS

Provide RFN for the system

and …





RES

In a small-capacity BSC: the TX interface of CMUX in the CRPS is not used.

In a large-capacity BSC: the TX is connectedto the RX in the CLPC in the CSWS.

1PPS: PP16S/8kHz clock signal input interface

COM1: Serial port 1 for serial communication with the CCRMCOM2: Serial port 2 for serial communication with the CCRM




CBIE

NOTE:

The CBIE in the CRPS is the same as the CBIE in the CIPS.

Except ...

Provide inter-BSC A3/A7 interface




CRMU

CRMU: CDMA ResourceManagement Unit

Process the A3, A7 and A9interfaces signaling

Maintenance management and

distribution of the A2, A3 and A8interface resources

Power supply indices and boarddimensions:

Input voltage: –36 V to –72 V DC


Dimensions: 366.7 mm x 340mm [14.44 in. x 13.39 in.]

J23

J22

RST CPUA

RUN

ALM

ACT

ETH1

ETH2




CRMU Panel Description

RUN: Operation indicator ON: There is power input and the CRMU is faulty.OFF: There is no power input or the CRMU is faulty.

Flashing at 0.5 Hz: The CRMU is in normal operation.

Flashing at 4 Hz: The CRMU is being loaded.

Flashing at 0.25 Hz: The CRMU is under self-test.


RUN

ALM ACT

ETH1

ETH2Unused




Questions

Do you notice the hardware structure of CRMU is the same as

one board’s which we have learned in CIPS just now?

What’s the name of that board?




CPPU

CPPU: CDMA Packet Process Unit

Store and transfer the data packets

Power supply indices and board dimensions:



Board dimensions: 366.7 mm x 340 mm [14.44 in. x 13.39 in.]

NOTE: The CPPU’s hardware structure is the same as that of CSPU’s




CPCU

CPCU: CDMA PCF Control Unit

Signaling Processing of A9 and A11









CBPU

CBPU: CDMA Buffer Process Unit

Downlink data buffering, processing and transferring









Questions

How many boards are the same as CSPU in hardware structure?

Do you remember their names?




CHAC

CHAC: CDMA High-speedAccess Controller

Interface board for A10/A11

Power Supply Indices and Board

Dimensions



Board dimensions: 366.7 mm

x 340 mm [14.44 in. x 13.39in.]

RUN

ALM

RESET

O1GIE

TX

RX

SW1

Pinch_plate




CHAC Panel Description

RUN: Operation indicator ON: There is power input and the CHAC is faulty.OFF: There is no power input or the CHAC is faulty.

Flashing at 0.5 Hz: The CHAC is in normal operation.

Flashing at 4 Hz: The CHAC is being loaded.

Flashing at 0.25 Hz: The CHAC is under self-test.

ALM: Alarm indicator. Normal Status: OFF





RESET: Resetting theCHAC

Interface Description Remarks

TX

1,000 M Ethernet optical

transmitting interface

Sending 1,000 M Ethernet

data

RX1,000 M Ethernet opticalreceiving interface

Receiving 1,000 M Ethernetdata





Optical subboard

J12

Short-

circuited

Not short-circuited

(default)

J12

The least

significant 4

M of FLASH

has writeproperty. J12

is used only

during CHAC

manufacture

and BootROM

upgrade.

The CHAC is in

normal operation.

The leastsignificant 4M,

namely, 0 –4M, of

FLASH in the

CHAC is in write

protect state.

Used to set FLASH write-protection flag




Downlink Data Flow in CRPS

CHAC CBPU CPPU CMUX

From PDSN To CIPS

ATM Bus




Uplink Data Flow in CRPS

CHAC CBPU CPPU CMUX

To PDSN From CIPS

ATM Bus




Data Signaling flow in CRPS

CHAC CPCU CRMU CMUX

PDSN CIPS

ATM Bus




Chapter 2 Subrack

2.1 CSWS (Optional)

2.2 CIPS

2.3 CRPS

2.4 CPMS




CPMS

CPMS: CDMA Packet Module Subrack

C

H

A

C

C

H

A

C

C

B

P

U

C

B

P

U

C

B

P

U

C

B

P

U

C

B

P

U

C

M

U

X

C

M

U

X

C

P

P

U

C

P

P

U

C

P

P

U

C

P

P

U

C

P

P

U

C

P

C

U

C

P

C

U

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Note: If data throughput is less than 40Mb then only CRPS is

enough. For more throughput we need to configure CPMS.




Chapter 3 Subsystem

3.1 Clock System

3.2 Power System




Types of Synchronization

Transmission Synchronization

Synchronization between BSC and MSC

Time Synchronization

Synchronize the Radio Frame Number between BSC and BTS




CLKM

CLKM: CLocK processing Module

CLKM is composed of two parts:

GCKP (GPS/GLONASS & ClocK Processing Board )

GCKB (Backplane of CLKM )

Panel of GCKP (Active/Standby)

RUN ALM ACT COM IN0 IN1 OUT ANT RUN ALM ACT COM IN0 IN1 OUT ANT

CLK_B COM_B ETH_B CLK_A COM_A ETH_A

Panel of GCKB

Panel of GCKP (Active/Standby)




GCKP

GCKP: GPS/GLONASS and ClocK Processing board

RUN ALM ACT COM IN0 IN1 OUT ANT

RUN: Operation indicator Flashing at 1Hz: The GCKP isnormal.ALM: Alarm indicator. Normal

Status: OFFACT: Active/standby statusindicator. ON: active / OFF:standby

Reserved

IN0

IN1

Input interface for BITS clock or lineclock, such as 2 MHz clock and 2Mbps clock

OUT Output interface for 2 MHz test clock

ANTInterface for GPS/GLONASS satelliteantenna




GCKB

GCKB: GPS/GLONASS and ClocK subrack Backplane

CLK_B COM_B ETH_B CLK_A COM_A ETH_A

CLK_A/CLK_B Output interface for PP16S/8 kHz Clock signal

COM_A/COM_BOutput interface for satellite timeinformation/CLKM maintenance serial port

ETH_A/ETH_B Network port for loading the standby GCKP

CLKM




BSC Clock System Structure

CLKC

C N E T

C M P U

CSWS

C L

P C C

B P U

C M U X

C P P U

C P C U

C B I E

C M U X

C B P U

C R M U

C P P U

2MHz circuit clock extracted from A-Interface

CPMS

CRPS

RFN cell

8k & 32M

8k & 32M

MSC A1/A2

Abis

PDSN A10/A11

GCKP GCKB

C S P U

C M U X

C F M R

C B I E

CIPS

RFN pulse

8k & 32M

RFN cell

8k PP16S absolute time information

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/A7 BSC

GPS




Physical ConnectionRUN ALM ACT COM IN0 I N1 T EST A NT

TX

RX

ETH

1PPS

COM1

COM2

RUN

ALM

ACT

RESET

7#CMUX(CRPS/CRMS)

CLK1

CLK2

E1/T1

E1/T1

E1/T1

E1/T1

RUN

ALM

ACT

CAIE

GCKP1

ETH_BCOM_BCLK_B ETH_ACOM_ACLK_A

GCKB

TX

RX

ETH

1PPS

COM1

COM2

RUN

ALM

ACT

RESET

8#CMUX(CRPS/CRMS)

RUN ALM ACT COM IN0 I N1 T ES T AN T

GCKP2

CLK1

CLK2

E1/T1

E1/T1

E1/T1

E1/T1

RUN

ALM

ACT

CAIE

ToGPS/Glonassantenna




Chapter 3 Subsystem

3.1 Clock System

3.2 Power System




Structure of Power System

The BSC is based on a multi-level distribution feed system,including:

AC power system

DC power system

DC power distribution cabinet

Feed system of cabinetsCabinetfeed

system

Cabinetfee

d

system

DC

distributioncabinet

-48V

DC

powersystem

BGND/RTN

-48V

BGND/RTN

PGND

-48V

BGND/RTN

-48V

BGND/RTN

PGND

-48V

BGND

-48V

BGND

AC

PGND




Connection of power feed cables

Functional subrack

DC power

distribution box

Input terminal

block

BGND-48V

-48V

C a b i n e t P G N D b

u s b a

r

Output

terminal block

Functional subrack

BGND-48V

Monitor

cable

BGND/RTN

BGND/RTN-48V

PGND

CabinetPGND

busbar

PGND

Cabinet PGND busbar




Power Distribution Box

Power Distribution Box is composed of two parts:

XLPB (Lightning Protection Board )

− Suppressing the over-voltage and over-current surge

caused by lightning at the DC power input port to ensure

the system security.XPSU (Power and environment Supervision Unit )

− Checking parameters regarding power supply and

environment, and reporting the detected information to

the CMUX through serial ports.

RUN

ALM

RUN: Flashing at 1 Hz: The XPSU has not logged on to the CMUX.

Flashing at 0.5 Hz: The XPSU runs normally and communicates well with the CMUX.




Chapter 1 Overview

Chapter 2 Subrack

Chapter 3 Subsystem

Chapter 4 Summary




Chapter 4 Summary

4.1 Software Loading Flow

4.2 Signaling Flow

4.3 Traffic Flow




Software Loading Flow

Other boards

in CRPS

CMUX

in CIPS

CMUX

in CRPS

BAM

Download

Software

Download

Software

……

……

Other boards

in CIPS

CSWS

GCKB

in CLKM




O&M Signal Flow

CRPS

C

R

M

U

C

M

U

X

C

B

P

U

C

P

C

U

C

P

P

U

CIPS

C

S

P

U

C

M

U

X

C

B

I

E

C

F

M

R

C

F

M

R

BAM

CSWS

C

M

P

U

C

L

P

C

C

N

E

T

CPMS

C

B

P

U

C

M

U

X

C

H

A

C

C

P

C

U

C

P

P

U




Chapter 4 Summary


4.2 Signaling Flow

4.3 Traffic Flow




Voice Signaling Flow

CIPS

C

F

M

R

C

B

I

E

C

M

U

X

C

S

P

U

In-band

signaling

C

L

A

P

C

A

I

E

SS7 signaling

CRPS

CM

U

X

CR

M

U

Abis

CBTS

Out-band

signaling

MSC

A1

CSWS

C

L

P

C

C

N

E

T

TDM bearing

AAL5 bearing

AAL2 bearing

AAL2 termination

AAL2 switching

TDM switching




Chapter 4 Summary


4.2 Signaling Flow

4.3 Traffic Flow




Voice Traffic Flow

CIPS

C

FM

R

C

BI

E

C

MU

X

C

EV

C

C

EV

C

C

AI

E

AbisCBTS MSC A2

TDM bearing

AAL2 bearing

AAL2 termination

AAL2 switching

TDM switching




Packet Data Service Flow

CIPS

C

F

M

R

C

B

I

E

C

M

U

X

CRPS/CPMS

CP

P

U

Abis

CBTS

PDSN

A10CH

A

C

CB

P

U

CSWS

C

N

E

T

C

L

P

C

CM

U

XEthernet bearing

AAL5 bearing

AAL2 bearing

AAL2 termination

AAL2 switching

Q




Questions

What’s the role of BSC in CDMA system?

How many subracks in BSC?

What is function of each board in BSC?

Could you draw the flowchart of signaling and traffic in BSC?



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Ore010101 Cdma20001 Bsc Hardware 1.0

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