04-cdma2000 bsc hardware system

Wireless Curriculum Development SectionWireless Curriculum Development SectionWireless Curriculum Development Section

ISSUEISSUE

CDMA2000 BSC Hardware SystemCDMA2000 BSC Hardware SystemCDMA2000 BSC Hardware System

1.01.0

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal

ContentsContents

Overview

CSWS

CIPS

CRPS

Clock System

Windup


CDMA BSS Network StructureCDMA BSS Network Structure

BSC/IWF/PCF PDSN

MSC

PLMN

A3/A7

A1/A2/A5

A1/A2/A5

A10/A11

MS

Internet

Abis

Abis

PSTNISDN

A10/A

11BTS

BTS

Optical Fiber

SoftBTS

MSBSC/IWF/PCF

IWF


CDMA WLL Network StructureCDMA WLL Network Structure

LE

MIP HA

AAA

PDSN/FA

Abis

BTS

A10/A11

Um

V5

LEV5Optical

FiberSoftsite

Um

Remote Model

AbisE1/STM-1

Module

RAC6610

BTS

BTS

SMC

Abis

FWT

INTERNET


Rack DistributionRack Distribution

� 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)

Large capacity BSC is divided into following functional blocks. In general each block corresponds to single subrack. These are:


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Large Capacity BSS Rack DistributionLarge Capacity BSS Rack Distribution

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Small Capacity BSS Rack DistributionSmall Capacity BSS Rack Distribution

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Small Capacity RAC Rack DistributionSmall Capacity RAC Rack Distribution

CIPS

CRPS

CIPSCIPSTo/From BTS To/From LE

CRPSTo/From PDSN

CIMS

E1 E1

Optical fiber

GE(Gigabit Ethernet)/FE(Fast Ethernet)

To/From NMSEthernet

CLKM

(V5)(Abis)

(A10/A11)

LAN

LAN

LANSMC

LAN


CCTR (CDMA Controller Rack)

CBUR (CDMA BUsiness Rack)

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Cabling Through

� ��

Fan boxCable trough

Air guide subrack

Fan boxCable trough

Keyboard

Dummy panel

� � ��

Dummy Panel

� � � �

Lanswitch

� � � ��

� � � �� BAM Server

LCD

CSWS

CRPS

CLKM

Cabling though

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CIPS/CPMS

CIPS/CPMS

CIPS


ContentsContents

Overview

CSWS

CIPS

CRPS

Clock System

Windup


Boards Position in CSWS Boards Position in CSWS

14131211109876543210

CNET

CNET

CLPC

CLPC

CMPU

CMPU

CLPC

CLPC

CLPC

CLPC

CLPC

CLPC

CLPC

CLPC


Functional Diagram of CSWSFunctional Diagram of CSWS

CLPC

CLPC

CNET

Other subracksOther subracks

Other subracksOther subracks

BAMBAMCMPU


CLPCCLPC

Controlling unit of line interface card

Provide eight 155Mbps ATM-over-SDH optical interfaces

Guarantee the ATM QoS

CLPC is responsible for:


CLPC board appearanceCLPC board appearance

"#$ �� %� � ��

"#$� ��%� � ��

RUN


Fast switching of fixed length-packets

CNETCNET

40 switching network ports

Synchronization clock function

CNET is responsible for:


CNETCNET

Clock module

RUNCLKACT

CLK IN0

CLK IN1

CLK OUT0

CLK OUT1CLK IN2CLK IN3


Managing & allocating the resources of CNET

CMPUCMPU

Management proxy for other subracks

Managing & maintaining the boards in CSWS

CMPU is responsible for:

Controls the active/standby switchover of the CNET


CMPUCMPU

IDE Hard Disk

RUNALMACT

RESET


Traffic FlowTraffic Flow

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Maintenance FlowMaintenance Flow

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BAM

Bus

Bus


CDMA WLL CIPSCDMA WLL CIPS

1514131211109876543210

CAI E

CIWF

CSPU

CSPU

CLCB

CEVC

CEVC

CMUX

CMUX

CEVC

CEVC

CIWF

CFMR

CFMR

CFMR

CXI E/CBIE

CLCB provides V5 signaling processing (Layer2)


ContentsContents

Overview

CSWS

CIPS

CRPS

Clock System

Windup


Functional Diagram of CIPSFunctional Diagram of CIPS

Abis Physical interface

Service frame selection, frame allocation

Multiplexing/Demultiplexing

Speech encoding and decoding

Signaling processing

BTS

BTS

A1/A2 physical interface

CR

PS

/CP

MS

CR

PS

/CP

MS

MS

CM

SC

Packet to C

RP

S /C

PM

SP

acket to CR

PS

/CP

MS

Circuit data processing


Boards Position in CIPS Boards Position in CIPS

1514131211109876543210

CAI E

CIWF

CSPU

CSPU

CLAP

CEVC

CEVC

CMUX

CMUX

CEVC

CEVC

CIWF

CFMR

CFMR

CFMR

CXI E

Note: CXIE/CBIE/COIE can provide the Abis interface.CAIE/CSTU can provide the A1/A2 interface.

Note: CXIE/CBIE/COIE can provide the Abis interface.CAIE/CSTU can provide the A1/A2 interface.


The switching & multiplexing functions of ATM services

CMUXCMUX

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:


CMUX AppearanceCMUX Appearance

ETH

1PPS

COM1

COM2

¹â¿Û å

RUN

ALM

ACT

RESET

TX

RX

$ � ��


CXIECXIE

1#E1

2#E1

n#E1… ...

IMA Chip

IMA Chip

E1 Interface Module

IMA Processing Module

IMA Processing

Module

E1 Interface Module

High-rate ATM flow High-rate ATM flow

IMA: Inverse Multiplexing on ATM


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 (Small capacity BSC)

CXIE is responsible for:


CXIE AppearanceCXIE Appearance

To BTS

To BTS

To BTS


CBIECBIE

32 standard E1/T1 interfaces

Providing a processing capability of 32 E1/T1 IMAs and supporting 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


CBIE AppearanceCBIE Appearance

To BTS

To BTS

J18

RUN

ALM

ACT

CLK1

E1/T1

CLK2

E1/T1

E1/T1

E1/T1

S14

S12

S13

S11

S10

S6

S5

S15

S16

S9

S8

S7

S17

J19 J18

J21

To BTS

To BTS


COIECOIE

Providing one 155Mbps STM-1 standard optical interface

Providing the IMA processing of 63 E1s and supporting UNI mode.

COIE is responsible for:

Supporting Fractional ATM function


COIE AppearanceCOIE Appearance

RUN

ALM

ACT

CLK1

CLK2

E1/T1

OPTS5

S6ON

ON

S7

S8ON

ON

S3

S4

S9ON

To BTS


CFMRCFMR

Selection/DistributionSelection/Distribution

BTS1 BTS2

Power controlPower control

Service Frame

Service Frame

Frame protocol processing




Multiplexing/DemultiplexingMultiplexing/Demultiplexing

LAC SARLAC SAR

LAC PDU

TRAU frame TRAU frame RLPRLP

CSPUCSPU CEVCCEVC CPPUCPPUSignaling Voice Packet data

TRAU - Transcoder and Rate Adaptation Unit


CFMR AppearanceCFMR Appearance

RUN

ALM

ACT


CEVCCEVC

Supports three types of coding: EVRC, QCELP8K and QCELP13K

�Perform ISLP rate adaptation for circuit data services below 64Kbps

� Provides the echo cancellation function between BSC & MSC (CEVD could not support this )

ISLP – Inter System Link Protocol


CIWFCIWF

Asynchronous data processing

Facsimile G3 processing

Analog facsimile processing


CLAPCLAP

Process the A1/A2 signaling (Layer2)

Measure, maintain and troubleshoot the A1/A2 signaling


CSPUCSPU

Process the upper-layer signaling including:� Um interface� Abis interface� A1/A2 interface� A3 interface� A7 interface� A9 interface


CAIECAIE

Provide 32 E1/T1 interfaces

Clock extraction


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


CSTUCSTU

Provide 63 E1 transmission over SDH

Clock extraction


CSTU AppearanceCSTU Appearance

To GCKP

MSC

RUN

ALM

ACT

RESET

CLK

TX

RX

RX

TX


Voice Traffic Flow in CIPSVoice Traffic Flow in CIPS

CXIE CFMR CMUX CEVC CAIE

ATM Bus

Extended TDM Bus

TDM Bus


Packet Traffic Flow in CIPSPacket Traffic Flow in CIPS

CMUXCXIE CFMR

ATM BusCBTS

CRPS


CEVCCIWF

Circuit Data Traffic Flow in CIPSCircuit Data Traffic Flow in CIPS

CXIE CFMR CMUX

To CBTS

CAIE

ATM Bus

Expand TDM Bus

TDM BUS


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 In-band signaling


Packet signaling Flow in CIPSPacket signaling Flow in CIPS

CXIE CFMR CSPU

ATM Bus

Outbandsignaling

To CRPS

Inband signaling

To CBTS

CMUX


Circuit signaling Flow in CIPSCircuit signaling Flow in CIPS

CXIE CFMR CSPU

ATM Bus

Out-band signaling

In-band signaling

To CBTS

CIWF

CLAPCAIECMUX

ATM Bus

Expand TDM Bus

TDM BUS


ContentsContents

Overview

CSWS

CIPS

CRPS

Clock System

Windup


Provide periodical time synchronization

Packet data service 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


Boards Position in CRPSBoards Position in CRPS

1514131211109876543210

CXI E

CPPU

CPPU

CBPU

CHAC

CMUX

CMUX

CHAC

CPCU

CPCU

CRMU

CRMU

CBPU

CXI E


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.


CXIECXIE

Provide inter-BSC A3/A7 interfaceand inter-subrack interface for small capacity

�Offer 24 standard E1s/T1s

Note:

� The CXIE boards in CRPS and CIPS are the same


CRMUCRMU

Note: � The CRMU’s hardware structure is the same as that of CSPU’s,

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


CPPUCPPU

Store, process and transfer the data packets

Work in load sharing to achieve resource pool mechanism

Note: � The CPPU’s hardware structure is the same as that of CSPU’s� The indicator states are also similar to the CSPU indicators.


A9

CPCUCPCU

Signaling Processing A11

CBPU and PPU Session ID management

Setup of signaling and traffic connection

Note:

� The CPCU’s hardware structure is the same as that of CSPU’s.� The indicator states are also similar to the CSPU indicators.


CBPUCBPU

Downlink data buffering, processing and transferring

Note: �The CBPU’s hardware structure is the same as that of CSPU’s.�The 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)


CHACCHAC

Transfer the traffic data (A10 interface) from PDSN to CBPU

Receives 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


Downlink Data Flow in CRPSDownlink Data Flow in CRPS

CHAC CBPU CPPU CMUX

To PDSN To CIPS

ATM Bus


Uplink Data Flow in CRPSUplink Data Flow in CRPS

CHAC CBPU CPPU CMUX

To PDSN To CIPS

ATM Bus

Bypass the CBPU


Signaling flow in CRPSSignaling flow in CRPS

CHAC CPCU CRMU CMUX

To PDSN To CIPS

ATM Bus


CLIU

CDMA WLL CRPSCDMA WLL CRPS

1514131211109876543210

CLIU

CHAC

CPCU

CBPU

CPPU

CUMB

CMUX

CMUX

CUMB

CSMU

CSMU

CRMU

CRMU

CXI E

CUMB - Subscriber Data Management

CSMU - Message processing and protocol conversion the Virtual Core Network module and the Message Center

CLIU - Provides ATM optical interface for the connection with the CMUX in CIPS


CDMA BSS & WLL CPMSCDMA BSS & WLL CPMS

1514131211109876543210

CPCU

CPPU

CMUX

CMUX

CBPU

CHAC

CHAC

CBPU

CBPU

CBPU

CBPU

CPPU

CPPU

CPPU

CPPU

CPCU

For data packets > 40Mbps


ContentsContents

Overview

CSWS

CIPS

CRPS

Clock System

Windup


Types of SynchronizationTypes of Synchronization

� Transmission Synchronization

� Synchronize the transmission between BSC and MSC

� Time Synchronization

� Synchronize the radio frame number (RFN) between BSC and

BTS


CLKMCLKM

CLKM (CLocK processing Module ) is composed of two parts:

� GCKP (GPS/GLONASS & ClocK Processing Board )

� GCKB (Backplane of CLKM )

RU

N

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)

RU

N

ALM ACT COM IN0 IN1 OUT ANT


BSC

Clock System

StructureB

SC C

lock System Structure

CLKM

CLKC

CNET

CMPU

CSWS

CLPCC

BPU

CMUX

CPPU

CPCU

CXIE

CMUX

CBPU

CRMU

CPPU

BITS clock source

2MHz circuit clock extracted from A-Interface

CPMS

CRPS

RFN cell

8k ¡¢32M

8k ¡¢32M

MSCA1/A2

Abis

PDSNA10/A11

GCKP GCKP

CSPU

CMUX

CFMR

CXIE

CIPS

RFN pulse

8k ¡¢32M

RFN cell

8k

PP16Sabsolute time infomation

CEVC

CLAP

CAIE

BTS

CHAC

CPCU

CHAC

PDSN

A10/A11

A3/A7BSC


Physical ConnectionPhysical Connection

RUN ALM ACT 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)

RUN ALMACT COM IN0 IN1 TEST ANT

GCKP2

CLK1

CLK2

E1/T1

E1/T1

E1/T1

E1/T1

RUN

ALM

ACT

CAIE

To GPS/Glonass antenna


ContentsContents

Overview

CSWS

CIPS

CRPS

Clock System

Windup


Software Loading FlowSoftware Loading Flow

BAM

CMUXin CRPS

Other boardsin CRPS

CMUXin CIPS

Other boardsIn CIPS

……

GCKBIn

CLKM

CSWS


Voice Signaling FlowVoice Signaling Flow

CLPC

CNET

CXIE

CFMR

CMUX

CSPU

CLAP

CAIE

CBTS

CMSC

CSWS

CIPS

TDM switching

AAL2 switching

AAL2 termination

TDM bearing

AAL2 bearing

AAL5 bearing

In-band signaling SS7

signaling

Abis

A1

In-band signaling

MS

Um

Out-band signaling

CRMU

CMUX

CRPS

CXIE


Voice Service FlowVoice Service Flow

CXIE

CFMR

CMUX

CEVC

CEVC

CAIE

CBTS

CMSC

CIPS

TDM switching

AAL2 switching

AAL2 terminationTDM bearing

AAL2 bearing

Abis

A2

MS

Um


Packet Data Signaling FlowPacket Data Signaling Flow

CLPC

CXIE

CFMR

CMUX

CSPU

CLAP

CAIE

CBTS

CSWS

CIPS

AAL2 switching

AAL2 termination

AAL2 bearing

AAL5 bearing

In-band signaling

Out-band signaling

CNET

Ethernet bearing

AbisMS

Um

SS7 signaling

CMSC

A1

CXIE

CRMU

CHAC

PDSN

CRPS

CPCU

A11CMUX

TDM switching

TDM bearing


CLPC

CXIE

CFMR

CMUX

CEVC

CEVC

CAIE

CBTS

CSWS

CIPS

AAL2 switching

AAL2 termination

Ethernet bearing

AAL2 bearing

CNET

AAL5 bearing

AbisMS

Um

CPPU

CBPU

CRPS/CPMS

CHAC

CPCU

PDSN

A10CMUX

Packet Data Service FlowPacket Data Service Flow


Configuration for 1,200,000 SubscribersConfiguration for 1,200,000 Subscribers

� BHCA: 2400k

� Voice traffic volume: 24,000Erl

� Um interface: 54,000TCE (traffic channel element)

� A-interface: 38400CIC,1280E1

� Abis interface: 960E1

� 3840 Sector Carriers

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

� 70,000 PPP connections

� 5,000 active PPP connections

� Total flow of packet data: 200Mbps


Typical BSS Hardware Configuration (1)Typical BSS Hardware Configuration (1)

CIMS 1

CPMS 0

CRPS 1

CIPS 4

CSWS 0

CLKM 1

2120,000Subs

0.02Erl/sub

CIMS 1

CPMS 0

CRPS 1

CIPS 1

CSWS 0

CLKM 1

130,000 Subs0.02Erl/sub

Number of SubracksNumber of CabinetsCapacity



CIMS 1

CPMS 2

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 Subs0.02Erl/sub




1,200k300k120k30kNumber of voice subscribers (0.02Erl/sub)

3,84096038496Number of sector carriers supported

1,2803209624Number of E1/T1 ports at Abis interface

1,28032012832Number of E1/T1 ports at A-interface

38,4009,6003,840960Number of circuits at A-interface

40,96010,2404,0961,024TC

54,000 TCE13,500 TCE5,400 TCE1,350 TCENumber of channels at Um interface

24,000Erl6,000Erl2,400Erl600ErlVoice traffic volume

2,400k600k240k60KBHCA

40 CIPS10 CIPS

1,200,000 Subscribers

300,000 Subscribers

120,000 Subscribers

4 CIPS

30,000 Subscribers

1 CIPS

NumberIndexes



31,6007,9003,160790Number of circuit data service subscribers

948 Erl237 Erl94.8 Erl23.7 ErlTraffic of circuit data services

200 Mbps100 Mbps40 Mbps10 MbpsTotal flow of packet data

5,0002,400960240Number of packet data service active PPP connections

70,00035,00035,00030,000Number of packet data service PPP connections

40 CIPS10 CIPS

1,200,000 Subscribers

300,000 Subscribers

120,000 Subscribers

4 CIPS

30,000 Subscribers

1 CIPS

NumberIndexes


Typical RAC Hardware Configuration (1)Typical RAC Hardware Configuration (1)

CIMS 1

CPMS 2

CRPS 1

CIPS 16

CSWS 1

CLKM 1

7160,000Subs

0.09Erl/sub

CIMS 1

CPMS 0

CRPS 1

CIPS 4

CSWS 0

CLKM 1

240,000 subs0.09Erl/sub




15,3603,840960Number of voice channels in V5 interface

555Number of A3/A7 interfaces

51212832Number of E1/T1 ports for V5 interface

51212832Number of E1/T1 ports for Abisinterface

21,600 TCE5,400 TCE1,350 TCEAir interface channel

14,400Erl3,600Erl900Erl

1280k320k80kBHCA

480000 subscribers (0.03Erl/sub)160000 subscribers q(0.09Erl/sub)

120000 subscribers (0.03Erl/sub)40000 subscribers (0.09Erl/sub)

30000 subscribers (0.03Erl/sub)10000 subscribers (0.09Erl/sub)

Maximum number of subscribers

Full configuration of 1X large capacity16 CIPS + 2CPMS

Full configuration of 1X small capacity4 CIPS + 1 CPMS

Single subrack of 1X1 CIPS

Number Indexes

Voice traffic volume



360K BHSM120 k BHSM60 k BHSMShort message processing rate in busy hours

576 asynchronous data/288 PC fax/288 analog fax

144 asynchronous data/72 PC fax /72 analog fax

36 asynchronous data/18 PC fax /18 analog faxIWF

10,000(2500*4)2,5002,500

Maximum number of PPP connections for data service activities

240,000(60,000*4)60,000Maximum number of data service PPP connections

400M(100M*4)40MTotal flow of packet data

Full configuration of 1X large capacity16 CIPS

Full configuration of 1X small capacity4 CIPS

Single subrack of 1X1 CIPS

Number Indexes

04-cdma2000 bsc hardware system

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