huawei cdmabss bsc6600 hardware system

8/16/2019 Huawei CDMABSS BSC6600 Hardware System

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Huawei Confidential. All Rights Reserved

ORE002101 CDMA2000 BSC

Hardware System

ISSUE 1.0

1 Internal Use

ObjectivesObjectives

Upon completion this course, you will beable to: Understand the hardware structure of BSC

system.

Understand the functionality of BSCsubrack.

Understand the functionality of each boardin the subrack.

Understand the clock system in BSCsystem.

Understand the signal flow in the BSCsystem.


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2 Internal Use

ChapterChapter 11 OverviewOverview

Chapter 2 CSWS

Chapter 3 CIPS

Chapter 4 CRPS

Chapter 5 Clock System

Chapter 6 Windup

3 Internal Use

A CDMA NetworkA CDMA Network

BSC/PCF

BSC/PCF

PDSN

MSC

PLMN A 3 / A 7

A1/A2

A 1 / A 2

A10/A11

BTSSoftsite

MS

MS

Internet

Abis

Abis

PSTNISDNBTS

A 1 0

/ A 1 1

MS: Mobile StationPCF: Packet data Control Function

PDSN: Packet Data Service NodeBSC: Base Station Controller

MSC: Mobile Switching Center BTS: Base Transceiver Station


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4 Internal Use

Rack DistributionRack Distribution

Large capacity BSC is divided into following functionalblocks. In general each block corresponds to singlesubrack. These are:

CDMA Switch Subrack (CSWS)

CDMA Integrated Processing Subrack (CIPS)

CDMA Resource and Packet Subrack (CRPS)

CDMA Packet Module Subrack (CPMS)

CLocK processing Module (CLKM)

CDMA Integrated Management System (CIMS)

5 Internal Use

Rack DistributionRack Distribution

To/from MSC

To / from PDSN

Optical fiber

To / from NMS

LAN

E1

GE

Ethernet

Optical fiber

Optical fiber

CIPS

CIMS

CPMS

CRPS

CSWS

CLKM

To / from PDSN

GE

To/from BTS E1


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6 Internal Use

Configuration for 1.2 Million SubscribersConfiguration for 1.2 Million Subscribers

BHCA: 2400k

Voice traffic volume: 24,000Erl

Um interface: 54,000TCE

A-interface: 38400CIC,1280E1

Abis interface: 1280E1

3840 Sector Carriers

1,200k Voice Subscribers(0.02Erl/sub)

70,000 PPP connections

5,000 active PPP connections

Total flow of packet data: 400Mbps

7 Internal Use

Hardware StructureHardware StructurePower distribution box

Cabling Through

Air guide subrackFan box

Cable trough

Air guide subrack

Fan boxCable trough

Keyboard

Dummy panel

Lanswitch

Dummy Panel

CLKM

Lanswitch

BAM Server

BAM Server BAM Server

LCD

CSWS

CRPS

CLKM

Cabling though

Dummy panel

Air guide subrackFan box

Cable trough

Power distribution box

Fan boxCable trough

Fan boxCable trough

Air guide subrack

CIPS/ CPMS

CIPS/ CPMS

CIPS

CCTR (CDMA

Controller Rack)

CBUR (CDMABUsiness Rack)


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8 Internal Use

Typical Hardware ConfigurationTypical Hardware Configuration

CIMS××××1

CPMS××××4

CRPS××××1

CIPS××××40

CSWS××××1

CLKM××××1

151,200,000Subs（（（（0.02Erl/sub））））

CIMS××××1

CPMS××××1

CRPS××××1

CIPS××××10

CSWS××××1

CLKM××××1

5300,000 Subs（（（（0.02Erl/sub））））

Number of SubracksNumber of CabinetsCapacity

9 Internal Use

Chapter 1 Overview

ChapterChapter 2 CSWS2 CSWS

Chapter 3 CIPS

Chapter 4 CRPS


Chapter 6 Windup


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10 Internal Use

Boards Position in CSWSBoards Position in CSWS

14131211109876543210

CN

ET

CN

ET

CL

PC

CL

PC

CM

PU

CM

PU

CL

PC

CL

PC

CL

PC

CL

PC

CL

PC

CL

PC

CL

PC

CL

PC

11 Internal Use

Functional Diagram of CSWSFunctional Diagram of CSWS

CLPC

CLPC

CNET

Other subracksOther subracks

Other subracksOther subracks

BAMBAMCMPU


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12 Internal Use

CLPCCLPC

Controlling unit of line interface card

Provide eight 155Mbps ATM-over-SDH optical interfaces

Guarantee the ATM QoS

CLPC is responsible for:

13 Internal Use

CLPC Board AppearanceCLPC Board Appearance

I/Ointerfaceunit

I/Ointerfaceunit

RUN


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14 Internal Use

CNETCNET

Fast switching of fixed length-packets

40 switching network ports

Synchronization clock function

CNET is responsible for:

15 Internal Use

CNET Board AppearanceCNET Board Appearance

Clockmodule

RUNCLKACT

CLK IN0

CLK IN1

CLK OUT0

CLK OUT1CLK IN2CLK IN3


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16 Internal Use

CMPUCMPU

Managing & allocating the resources of CNET

Management proxy for other subracks

Managing & maintaining the boards in CSWS

CMPU is responsible for:

Controls the active/standby switch over

17 Internal Use

CMPU Board AppearanceCMPU Board Appearance

IDE Hard Disk

RUNALMACT

RESET


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18 Internal Use

Traffic Flow in CSWSTraffic Flow in CSWS

CCCC

MMMM

UUUU

XXXX

CCCC

MMMM

UUUU

XXXX

CCCC

NNNN

EEEE

TTTT

CCCC

LLLL

PPPP

CCCC

19 Internal Use

Maintenance Flow in CSWSMaintenance Flow in CSWS

CCCC

LLLL

PPPP

CCCC

CCCC

NNNN

EEEE

TTTT

CCCC

MMMM

UUUU

XXXX

CCCC

MMMM

PPPP

UUUU

BAM

Bus

Bus


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20 Internal Use

Chapter 1 Overview

Chapter 2 CSWS

ChapterChapter 3 CIPS3 CIPS

Chapter 4 CRPS


Chapter 6 Windup

21 Internal Use

Functional Diagram of CIPSFunctional Diagram of CIPS

Abis Physical interface

Service frame selection, frame allocation

Multiplexing/Demultiplxexing

Speech encodingand decoding

Signalingprocessing

B T S

B T S

A1/A2 physical

interface

Circuit dataprocessing

M S C

M S C

C R P S / C P M S

C R P S / C P M S

P a ck e t

t o C R P S / C P M S

P a ck e t

t o C R P S / C P M S


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22 Internal Use

Boards Position in CIPSBoards Position in CIPS

1514131211109876543210

C

AI

E

C

IW

F

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

IW

F

C

FM

R

C

FM

R

C

FM

R

C

BI

E

Note: CXIE/CBIE/COIE can provide the Abis interface.

CAIE/CSTU can provide the A1/A2 interface.



23 Internal Use

CMUXCMUX

The switching & multiplexing functions of ATM services

Synchronization clock function

Manages & monitors the software loading of all boards in

CIPS

Monitors the power of subrack, fan box and environment

operating status

CMUX is responsible for:


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24 Internal Use

CMUX Board AppearanceCMUX Board Appearance

ETH

1PPS

COM1

COM2

¹â¿Û°å

RUN

ALM

ACT

RESET

TX

RX

Optical Module

25 Internal Use

CBIECBIE

32 standard E1/T1 interfaces

Providing a processing capability of 32 E1/T1 IMAs andsupporting pure ATM over E1 mode (UNI mode)

the channels for inter-working between CIPS and CRPS(Small capacity BSC)

CBIE is responsible for:

Supporting Fractional ATM function


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26 Internal Use

IMA in CBIEIMA in CBIE

1#E1

2#E1

n#E1… ...

IMAChip

IMAChip

E1InterfaceModule

IMA ProcessingModule

IMA ProcessingModule

E1Interface

Module

High-rate ATM flow High-rate ATM flow

IMA: Inverse Multiplexing on ATM

27 Internal Use

CBIE BoardCBIE Board ApperanceApperance

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

To BTS

To BTS

To BTS

To BTS


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28 Internal Use

CFMRCFMR

Selection/DistributionSelection/Distribution

BTS1 BTS2

Power controlPower control

ServiceFrame

ServiceFrame

Frame protocolprocessing




Best Frame

Multiplexing/DemultiplexingMultiplexing/Demultiplexing

LAC SARLAC SAR

LAC PDU

TRAU frameTRAU frame RLPRLP

CSPUCSPU CEVCCEVC CPPUCPPU

29 Internal Use

CFMR Board AppearanceCFMR Board Appearance

RUN

ALM

ACT


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30 Internal Use

CEVCCEVC

Supports three types of coding: EVRC, QCELP8K andQCELP13K

Perform ISLP rate adaptation for circuit data servicesbelow 64Kbps

Checks and inserts DTMF signals

Provides the echo cancellation function

between BSC & MSC (CEVD could not support this )

31 Internal Use

CIWFCIWF

Asynchronous data processing

Facsimile G3 processing

Analog facsimile processing


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32 Internal Use

CLAPCLAP

Process the A1/A2 signaling (Layer2)

Measure, maintain and troubleshoot the A1/A2 signaling

33 Internal Use

CSPUCSPU

Process the upper-layer signaling including:

Um interface

Abis interface

A1/A2 interface

A3 interface

A7 interface

A9 interface


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34 Internal Use

CAIECAIE

Provide 32 E1/T1 interfaces

Clock extraction

35 Internal Use

CAIE Board AppearanceCAIE Board 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

MSC

To GCKP


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36 Internal Use

Voice Traffic Flow in CIPSVoice Traffic Flow in CIPS

CBIE CFMR CMUX CEVC CAIE

ATM Bus

Extended TDM Bus

TDM Bus

37 Internal Use

Packet Traffic Flow in CIPSPacket Traffic Flow in CIPS

CMUXCBIE CFMR

CBTSCRPS

ATM Bus


20/37 2

38 Internal Use

Circuit Traffic Flow in CIPSCircuit Traffic Flow in CIPS

CEVCCIWFCBIE CFMR CMUX

To CBTS

CAIE

ATM Bus

Expand TDM Bus

TDM BUS

39 Internal Use

Voice Signaling Flow in CIPSVoice Signaling Flow in CIPS

CBIE CFMR CSPU CMUX CAIE

ATM BUS

Expand TDM Bus

TDM BUS

CLAP

Out-band signalingIn-band signaling


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40 Internal Use

Packet Signaling Flow in CIPSPacket Signaling Flow in CIPS

CBIE CFMR CSPU

ATM Bus

Outband

signaling

To CRPS

Inband signaling

To CBTS

CMUX

41 Internal Use

Circuit Signaling Flow in CIPSCircuit Signaling Flow in CIPS

CBIE CFMR CSPU

ATM Bus

Out-band signaling

In-band signaling

To CBTS

CIWF

CLAP

CAIECMUX

ATM Bus

Expand TDM Bus

TDM BUS


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42 Internal Use

Functional Diagram of DO CIPSFunctional Diagram of DO CIPS

Abis Physical interface

Service frame selection, frame allocation

Multiplexing/Demultiplxexing

Signalingprocessing

B

T S

B

T S

C R P

S / C P M S

C R P

S / C P M S

P a ck e t t o C R P

S / C P M S

P a ck e t t o C R P

S / C P M S

Overview

43 Internal Use

Boards Position in DO CIPSBoards Position in DO CIPS

1514131211109876543210

CB

IE

CF

MR

CS

PU

CS

PU

CF

MR

CF

MR

CF

MR

CM

UX

CM

UX

CF

MR

CF

MR

CF

MR

CF

MR

CF

MR

CF

MR

CB

IE

Overview






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44 Internal Use

Chapter 1 Overview

Chapter 2 CSWS

Chapter 3 CIPS

ChapterChapter 4 CRPS4 CRPS


Chapter 6 Windup

45 Internal Use

Functional Diagram of CRPSFunctional Diagram of CRPS

Provide periodicaltime synchronization

Packet dataservice processing

Provide A3/A7

physical interface

Resource

management

From CIPS

From original CIPS

To CIPSFrom CLKM

To PDSN

To target CIPS


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46 Internal Use

Boards Position in CRPSBoards Position in CRPS

1514131211109876543210

C

XIE

C

PPU

C

PPU

C

BPU

C

HAC

C

MUX

C

MUX

C

HAC

C

PCU

C

PCU

C

RMU

C

RMU

C

BPU

C

XIE

47 Internal Use

CMUXCMUX

Manage & maintain the boards in CRPS

Provide RFN for the system

Note:

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


25/37 2

48 Internal Use

CBIECBIE

Provide inter-BSC A3/A7 interface

Offer 32 standard E1s/T1s

Note: The CBIE boards in CRPS and CIPS are the same

49 Internal Use

CRMUCRMU

Process the A3, A7 and A9 interfaces signaling

Maintenance management and distribution of the

A2, A3 and A8 interface resources

Note:

The CRMU hardware structure is the same as that of CSPU, so the

indicator meaning of CRMU are also the same.


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50 Internal Use

CPPUCPPU

Store and transfer the data packets

Work in load sharing to achieve resource

pool mechanism

Note: The CPPU hardware structure is the same as that of CSPU, so the

indicator meaning of CPPU are also the same.

51 Internal Use

CPCUCPCU

A9 Signaling Processing A11

CBPU and PPU Session ID

management

Setup of signaling and traffic

connection

Packet call status maintaining

Note:

The CPCU hardware structure is the same as that of CSPU, so the

indicator meaning of CPCU are also the same.


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52 Internal Use

CBPUCBPU

Downlink data buffering, processing and transferring

Work in load sharing mode to achieve resource pool

mechanism

Re-sequencing the packet sent from PDSN(transferred via CHAC)

Note: The CBPU hardware structure is the same as that of CSPU, so the

indicator meaning of CBPU are also the same.

53 Internal Use

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


28/37 2

54 Internal Use

CHAC Board AppearanceCHAC Board Appearance

RUNALM

RESET

O1GIE

TX

RX

SW1

扣

TX

RX

55 Internal Use

Downlink Data Flow in CRPSDownlink Data Flow in CRPS

CHAC CBPU CPPU CMUX

To PDSN To CIPS

ATM Bus


29/37 2

56 Internal Use

Uplink Data Flow in CRPSUplink Data Flow in CRPS

CHAC CBPU CPPU CMUX

To PDSN To CIPS

ATM Bus

Bypass the CBPU

57 Internal Use

Signaling Flow in CRPSSignaling Flow in CRPS

CHAC CPCU CRMU CMUX

To PDSN To CIPS

ATM Bus


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58 Internal Use

CPMSCPMS

Connection management, mobility management, charging, shortdata burst & MD5 encryption

Convert A8 interface data to A10 and vice versa

Provides GRE and IP route displacement and forwarding function

CDMA Packet Module Subrack provides PCF functions, it accomplishes the:

Note: If data throughput is less than 40Mb then only CRPS is enough. For more

throughput we need to configure CPMS.

59 Internal Use

Boards Position in CPMSBoards Position in CPMS

1514131211109876543210

C

PC

U

C

PPU

C

MU

X

C

MU

X

C

BPU

C

HA

C

C

HAC

C

BPU

C

BPU

C

BPU

C

BPU

C

PPU

C

PPU

C

PPU

C

PPU

C

PCU


31/37 3

60 Internal Use

Chapter 1 Overview

Chapter 2 CSWS

Chapter 3 CIPS

Chapter 4 CRPS

ChapterChapter 55 ClockClock SystemSystem

Chapter 6 Windup

61 Internal Use

Types of SynchronizationTypes of Synchronization

Transmission Synchronization Synchronize the transmission between BSC and MSC

Time Synchronization Synchronize the radio frame number (FN) between BSC and

BTS


32/37 3

62 Internal Use

CLKMCLKM

CLKM (CLocK processing Module ) is composed of two parts: GCKP (GPS/GLONASS & ClocK Processing Board ) GCKB (Backplane of CLKM )

R U N

A L M

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)

R U N

A L M

ACTCOM IN0 IN1 OUT ANT

63 Internal Use

BSC Clock System StructureBSC Clock System Structure

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

B

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

A1/A2

Abis

PDSN

A10/A11

GCKP GCKP

C

S

P

U

C

M

U

X

C

F

M

R

C

B

I

E

CIPS

RFN pulse

8k ¡¢32M

RFN cell

8k

PP16Sabsolute 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

MSC

CLKM

A3/A7BSC


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64 Internal Use

Physical ConnectionPhysical Connection

RUNALMACT COM IN0 IN1 TEST ANT

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)

RUNALMACT COM IN0IN1 TEST ANT

GCKP2

CLK1

CLK2

E1/T1

E1/T1

E1/T1

E1/T1

RUN

ALM

ACT

CAIE

ToGPS/Glonassantenna

65 Internal Use

Chapter 1 Overview

Chapter 2 CSWS

Chapter 3 CIPS

Chapter 4 CRPS


ChapterChapter 66 WindupWindup


34/37 3

66 Internal Use

Software Loading FlowSoftware Loading Flow

BAM

CMUXin CRPS

Other boardsin CRPS

CMUXin CIPS

Other boardsIn CIPS

……

GCKBIn

CLKM

CSWS

67 Internal Use

Voice Signaling FlowVoice Signaling Flow

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 bearing

AAL2 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


35/37 3

68 Internal Use

Voice Traffic FlowVoice Traffic Flow

C

X

I

E

C

F

M

R

C

M

U

X

C

E

V

C

C

E

V

C

C

A

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

69 Internal Use

Packet Data Signaling FlowPacket Data Signaling Flow

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


36/37 3

70 Internal Use

Packet Data Traffic FlowPacket Data Traffic Flow

C

L

P

C

C

X

I

E

C

F

M

R

C

M

U

X

C

E

V

C

C

E

V

C

C

A

I

E

C

BT

S

CSWS

CIPS

AAL2 switching

AAL2 termination

Ethernet bearing

AAL2 bearing

C

N

E

T

AAL5 bearing

AbisMS

Um

C

P

P

U

C

B

P

U

CRPS/CPMS

C

H

A

C

C

P

C

U

P

D

S

N

A10

C

M

U

X

71 Internal Use

Questions?Questions?

Q. State the traffic flow in BSC system?

Q. State the signaling flow in BSC system?

huawei cdmabss bsc6600 hardware system

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