bss oam bsc architecture v4

8/12/2019 BSS OAM BSC Architecture v4

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1 Nokia Siemens Networks 2012

For internal useUnique document identifier (ID) / Version number / Life cycle status

BSS OAM _ BSS ArchitectureRSO EFLM -v4.0

RSO-EFLM / March 20'13


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BSC Product Naming

BSC = Base Station Controller, a general term for all BSC versions

Generalname

Product name Explanation

BSCi/2i BSCiHigh Capacity (upgraded) version of the first generation DX 200 BSC (BSCE

BSC2i High Capacity version of the second generation DX 200 BSC2Flexi BSCproductfamily

BSC3i 660660-TRX one-cabinet configuration, upgradeable to Flexi BSC

BSC3i 1000/20001000-TRX one-cabinet or 2000-TRX two-cabinet configuration, upgradeable

Flexi BSC 3000-TRX in one-cabinet configuration in RG10(BSS), 4200-TRX in one-cabconfiguration in RG20(BSS)

Flexi BSC product family is a general term for all versions upgradeable to Flexi BSC configurationFlexi BSC as product name is specific for the 3000 TRX one cabinet product/configuration


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Evolution from BSC2i to mcBSC


Second generation

Up to 512 TRX (S6)with 2 racks

PCU1

3 rd Generation

BSC3i 660 configuration(S10.5)

3 rd Generation

1000 TRX with 1-cabinetand up to 2000 TRXs with2 cabinets (S12).IP connectivityPCU2D

BSC 2i Flexi BSCBSC3i HicapBSC 3i Lowcap

HW: 700 TRX steps up to4,200 TRXs.

Full Native IP/Ethernetconnectivity(optical/electrical)Packet Abis (6+6), A over IP(4), Gb / IP (3+3) and O&M(1+1 )

Modd

Easl4400


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Flexi BSC Evolution towards the Nokia SiemensNetworks Multicontroller Solution


RNC

RNC

BSC

BSC

BSC

FlexiBSC

BSC3i 1000/2000

BSC3i 660

Flexi BSC

Flexi BSCProduct Family

Combined 2G/3GController

Stand-alone2G BSC

site implementation

Flexi BSCmodule extensions

All installed BSC3is can be upgraded to Flexi BSC specification(660 TRX 1000 TRX 2000 TRX 3000 TRX)


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)

DX 200


DX200 HW PlaNetwor

DX200 is Modular,Scalable andRedundant


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DX 200


DX200 is HW PlatfoNetwork E

DX200 is

Modular, Scalable andRedundant

Modular

Refers to the design ofany system composed of separatecomponents that can be connected together.

The opposite of a modular architecture isan integrated architecture , in which no clear

divisions exist between components

Independent smaller parts (modules) and use themin different systems to drive multiple functionalities.

Personal Computers ( PCs) are classic example of a modularsystem . Processors, main boards, graphics cards, harddrives, power supply units, optical drives, etc are independentunits assembled to get a compelte system


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DX 200


DX200 is HW PlatfoNetwork E

DX200 is Modular,Scalable andRedundant

ScalableRefers to how well a hardware or software system canadapt to increased demands.

Redundant

N+1 Principle:Units which are used in call setup and not critical for

calls in progress.

2n Principle:Units which are critical forcalls in progress


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DX200 Basic Principle


Operation and

maintenance

Control Part

Network Interface Switching

Subscr iberlines

Trunkcircuitlines

Load sharing

functional dis

Network of icomputers

High speed mfor inter-com

communicat

Fault toleranby hardware


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DMX & Chorus


DX200 Operating System.DMX is the core of the DX200

Fault Tolerant ComputingPlatform. High performance parallel processing

Motorola processors are being used in somenetwork elements

New operating system is needed since DMXIntel architecture.

Chorus OS is provided by SUN MicrosystemHW independent (available for most procesMicrokernel architecture, real-time

CP816

PCU2D


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DX200 is Used in Different Network ElementsMSC BSC HLR

MSSSGSN

Anmamo



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Redundancy Types


Used in the BSC

RedundancyTypes

2N

No Redundancy

N+1


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Redundancy principles 2N


Active

HotStandby

Faulty

Active

Spared unit is ready to take over the action allthe time. - GSWB, MCMU


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Redundancy principles- N+1/Replaceable


Active

Active

Stand by

Active

Active

Active

Stand by

Active

In case of failure, information of WO unit must be loaded into the SP one before SPstarting the operation- BCSU


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Sub rack, Rack,Cabinet,Cartridge,

Functional unit,PIUs, Cards..... ??


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HW mechanicsCabinet

Subrack

Plug-inunit

Functionalunit

POWER SUPPLYCONNECTOR GROUP

COVER FOR WHEEL B ADJUSTABLE FEET WHEEL

HORIZONTALGROUNDINGBAR

DOOR LEFT

SIDE COVERPLATE - SCPOREMC GASKETFRAME

COVER FORPOWER SUPPLY

CABLESUPPORT



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For internal use

Unique document identifier (ID) / Version number / Life cycle statusRSO-EFLM / March 20'13


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For internal use

Unique document identifier (ID) / Version number / Life cycle status

BSC Architect



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BSC3i 660 Cabinet Configuration


PDFU 0 PDFU-A

GSWB 0 SW1C-C C L

S 0 , 1

C L O C - B

GSWB 1 SW1C-C

ET4C 0 ET4C-B

(32*ET2E/A)

ET4C 1 ET4C-B

(30*ET2E/A)

FTRB 0 FTRB 1

FTRB 2 FTRB 3

CPRJ45 CPGOCPGO

PDFU 1 PDFU-A

PDFU 2 PDFU-A

PDFU 3 PDFU-A

OMU CM2C-A

BCSU 1 CC3C-A

BCSU 0 CC3C-A

BCSU 2 CC3C-A

BCSU 4 CC3C-A

BCSU 3 CC3C-A

BCSU 5 CC3C-A

BCSU 6 CC3C-A

CC4C-ACC4C-AMCMU 1 MCMU 0

BCSU BSC SignallCLS Clock & Syn

ET Exchange Te

GSW Group Switc

MB Message Bu

MCMU Marker an

Management UnitOMU Operation &Unit

PCU Packet Contr


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BSC3i 660 Cabinet Configuration


PDFU 0 PDFU-A

GSWB 0 SW1C-C C

L S 0 , 1

C L O C - B

GSWB 1 SW1C-C

ET4C 0 ET4C-B

(32*ET2E/A)

ET4C 1 ET4C-B

(30*ET2E/A)

FTRB 0 FTRB 1

FTRB 2 FTRB 3

CPRJ45 CPGOCPGO

PDFU 1 PDFU-A

PDFU 2 PDFU-A

PDFU 3 PDFU-A

OMU CM2C-A

BCSU 1 CC3C-A

BCSU 0 CC3C-A

BCSU 2 CC3C-A

BCSU 4 CC3C-A

BCSU 3 CC3C-A

BCSU 5 CC3C-A

BCSU 6 CC3C-A

CC4C-ACC4C-AMCMU 1 MCMU 0

GSW1KB

1 2 4 5 6 73

DBGRST

J7

J6

WORUNLFOLTEAPDRAMSBCPSISCSIETx0ERx0

OPROPROPR

ONOFF ETx1ERx1

J5

OPR

RST

J5

OPR

RST

E T H1 E T H2

E T

H1 E T H2

MCSU

1 2 3

OPR

ONOFF


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BSC3i 660 Block Diagram

SwitchingPlatform

C


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Actually it is

& COMPLICATELooks COMPL


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ETs

ETs

Switching

1. Well, that requires a input and output device

Inputs

ET


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ETs ETs

Switching

1. Well, that requires a input and output device - ETs

Inputs

h


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ETs ETs

Switching


Inputs

2. Input and output alone will not work right ? We need a switch to connect

And here we call it as Group switch - GSW

GSW

S i hi


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ETs ETs

Switching


Inputs

2. We need a switch to connect these two, and here we call it as Group sw

GSW

S i hi


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ETs ETs

Switching

Inputs

We need a switch to connect these two, and here we call it as Group switc

GSW

We all know that a switch wont work

independently

We need somebody to

Operate\Con

S i hi


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ETs ETs

Switching

Inputs

We need a switch to connect these two, and here we call it as Group switc

GSW

MCMU

MC

L t i th BASIC f ti liti f BSC


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Lets review the BASIC functionalities of a BSC1. Switching

ET ETInput device

GSW

MCMU

Output deviceswitch

Controlling\computing unit

Switching platform

Computingplatform

L t i th BASIC f ti liti f BSC


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Lets review the BASIC functionalities of a BSC

1. Switching

MCMU & Other Comp ter nits


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MCMU & Other Computer units


900 x 600 x 2000

MCMUMCMU

OMU

BCSUBCSU BCSU

BCSUBCSU BCSU

ET orETS

ET orETS L A

N U

L A N U

C L A C

ET ET

G S W 2 K B

C L O C

PDFU 0 PDFU 1

G S W 2 K B

Fan tray Fan tray

Fan trayFan trayCPU LAN SW

PCULAN

SWITCH

SGSN

Gb over IP

BSC 3i GSW


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BSC 3i GSW


900 x 600 x 2000

MCMUMCMU

OMU

BCSUBCSU BCSU

BCSUBCSU BCSU

ET orETS

ET orETS L A

N U

L A N U

C L A C

ET ET

G S W 2 K B

C L O C

PDFU 0 PDFU 1

G S W 2 K B

Fan tray Fan tray

Fan trayFan tray

GSW 2KB Cartridge

Switch with a comcapacity of 2048 PCSW256B units).

Time space Switch 2N redundancy (Mtogether) MCMU GSW paconnected to GSW

Time space switch


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Time space switch


GSW 2KB C

Any Inputs can be connected to any output. Both time slot & lines can be switched.

1

2

3

n

x

1

2

3

n

y

Time Slotchange

Linechange

Time Stage Space Stage

SW 256B


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SW 256BSwitches 8 Kbps channels (x= 8Kbps).It supports 256 numbers of 2Mbps lines (n=256).Each 2Mbps lines are having 256 8Kbps slots.Total internal switching capacity = 65536channels.

Time space switch

SW 256 Supports E1 and STMs

E1 : 8Mbit/s serial connections towards ET16 - vSTM : 2 Hot Links / SW256 towards ETS2 - via called SBI (Serial Broadband Interface) Bus.

Front panel Back panel

4 STM lines(Hotlink Main)

4 STM lines (H/LProtection)

towards ETS2

towards ET16



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ET 16


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ET 16


E

Full height ET interface plug-in unit E1/T1 interfaces in steps of 16, max 800

E1/T1s Only one variant of ET16 that fulfills E1, T1

requirements

BSC Capacity (High Cap &Flexi)

50 ET16 PIUs = 800PCMs

GSW1KB/GSW2KB

4*8Mbps

towards ExternalConnectivity for

A, Ater, Gb(FR)& Abis

16 E1/T1Interfaces

ETS2 E


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ETS2


E

GSW0

GSW1

2*Hotlink

2*Hotlinktowards ExternalConnectivity for

A, Ater, Gb(FR)& Abis

ETS2 provides an optical 4 STM-1 or OC-3 interface to SDH network

GSW Connectivity via Hotlink

2 separate interfaces per unit

+ Optical interface redundancy

BSC Capacity (High Cap &Flexi)

Up to 16 ETS2 units inBSC3i 1000/2000

Max. 16 STM-1/OC-3 I/F

BSC3i 1000/2000 Hardware and Functionality


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BSC3i 1000/2000 Hardware and Functionality2 Alternatives of ETS2:




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BSC3i 1000/2000 Hardware and FunctionalityExample cabling of ETS2


2 3 4 5 6 71 8 9

T x / R x Fai l

TX

1 R RX

S T M- 1 / O C -3

S T M- 1 / O C -3

S T M- 1 / O C -3

S T M- 1 / O C -3

TX

1 M RX

TX

0 R RX

TX

0 M RX

O PR

S B 1 - 0

S B 1 - 1

S B 2 - 0

S B 2 - 1

T x / R x Fai l

TX

1 R RX

S T M- 1 / O C -3

S T M- 1 / O C -3

S T M- 1 / O C -3

S T M- 1 / O C -3

TX

1 M RX

TX

0 R RX

TX

0 M RX

O PR

S B 1 - 0

S B 1 - 1

S B 2 - 0

S B 2 - 1

T x / R x Fai l

TX

1 R RX

S T M- 1 / O C -3

S T M- 1 / O C -3

S T M- 1 / O C -3

S T M- 1 / O C -3

TX

1 M RX

TX

0 R RX

TX

0 M RX

O PR

S B 1 - 0

S B 1 - 1

S B 2 - 0

S B 2 - 1

T x / R x F ai l

TX

1 R RX

S T M- 1 / O C -3

S T M- 1 / O C -3

S T M- 1 / O C -3

S T M- 1 / O C -3

TX

1 M RX

TX

0 R RX

TX

0 M RX

O PR

S B 1 - 0

S B 1 - 1

S B 2 - 0

S B 2 - 1

ETS2 plug-in units in slots 1...4

Hotlink cables fromSTM-1/OC- 3 interfacestoGSW2KB1

Hotlink cables fromSTM-1/OC- 3 interfacestoGSW2KB0

A. Hotli nk cablin gs from GT 4C-A slots 1...4

Note 1! I f ET16 pius are equippedtoGT4C-Acartr idges (GTI C 0 & 1)insteadof Hotlink cables, theseHotlink cables are fastenedsomewherefor not causingany harm

2 3 4 5 6 71 8

T x / R x F ai l

TX

1 R RX

S T M- 1 / O C -3

S T M- 1 / O C -3

S T M- 1 / O C -3

S T M- 1 / O C -3

TX

1 M RX

TX

0 R RX

TX

0 M RX

O PR

S B 1 - 0

S B 1 - 1

S B 2 - 0

S B 2 - 1

T x / R x Fai l

TX

1 R RX

S T M- 1 / O C -3

S T M- 1 / O C -3

S T M- 1 / O C -3

S T M- 1 / O C -3

TX

1 M RX

TX

0 R RX

TX

0 M RX

O PR

S B 1 - 0

S B 1 - 1

S B 2 - 0

S B 2 - 1

T x / R x Fai l

TX

1 R RX

S T M- 1 / O C -3

S T M- 1 / O C -3

S T M- 1 / O C -3

S T M- 1 / O C -3

TX

1 M RX

TX

0 R RX

TX

0 M RX

O PR

S B 1 - 0

S B 1 - 1

S B 2 - 0

S B 2 - 1

T x / R x Fai l

TX

1 R RX

S T M- 1 / O C -3

S T M- 1 / O C -3

S T M- 1 / O C -3

S T M- 1 / O C -3

TX

1 M RX

TX

0 R RX

TX

0 M RX

O PR

S B 1 - 0

S B 1 - 1

S B 2 - 0

S B 2 - 1

ETS2 plug-in units in slots 1...4

Note 2! I nproductiontheseHotlink cables can not beconnectedonthe PIU end,sothey are fastenedsomewherefor not causingany harm andthey willnot get damaged

Front side F

B. ST M-1/OC-3 cablin gs from G T4C-A slots 1...4

S H I M 4 T

S H I M 4 T

S H I M 4 T

S H I M 4 T

S H I M 4 T

S H I M 4 T

S H I M 4 T

S H I M 4 T



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BSC3i 1000/2000 Hardware and FunctionalityPDH and SDH/Sonet Connectivity


E1/T1

STM-1/OC-3

E1/T1

STM-1/OC-3

STM-1/OC-3

E1/T1

8320

8 + 8*

16

25616 + 16*

16 16 + 16*

3841Cabinets

BSC3i

Mixed examples 2

Mixed examples 1

SDH/Sonet Connectivity(max.)

PCM Connectivity (max.)

21000

Note: *) for redundancy


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900 x 600 x 2000

MCMUMCMU

OMU

BCSUBCSU BCSU

BCSUBCSU BCSU

ET orETS

ET orETS L A

N U

L A N U

C L A C

ET ET

G S W 2 K B

C L O C

PDFU 0 PDFU 1

G S W 2 K B

Fan tray Fan tray

Fan trayFan tray

CPU LAN SW

PCULAN

SWITCH

SGSN

Gb over IP



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MCMUMCMU

OMU

BCSUBCSU BCSU

BCSUBCSU BCSU

ET orETS

ET orETS L

A N U

L A N U

C L A C

ET ET

G S W 2 K B

C L O C

PDFU 0 PDFU 1

G S W 2 K B

Fan tray Fan tray

Fan trayFan tray

MCMU

BCSU

OM

P S C 6 A

A A A A

Processing Unit - CP816


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CPU INTERFACES

g


OMU

BCSU

MCMUUsed in all BSas Processing pfor all compute

Serial Interface : 4 x 9600-38400 b/s. Front PanelSCSI : 2 x 160 MB/s. Located in backplaneEthernet : 4 x 1000 Mbits/s. Located in backplane

Different Variants of CPU are there to support vastpurposes


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CP816-A

J7J6

ResetDebugger

With S

The Debug switch forces the software intothe minidebugger mode.

Reset switch resets the unit.

LEDs

LED Row Label Color Comment

1 1 WO GreenThe LED is illuminated when themicrocomputer unit is active.

2 1 RUN GreenThe LED is turned on when NMIis activated.

3 1 P0 (Eth 0) YellowLAN0 is active.


5 2 TE YellowThe LED is illuminated when themicrocomputer is in test state(TE).

6 2 LF Red Software Controlled LED


8 2 P3 (Eth 3) YellowLAN3 is active

Local Login to CPU fortroubleshooting

purposes

SCSI Interface in CPUis used to connect

storage devices

purposes. CP816-A with SCSI interface used in OMU.

Interchangeability


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g y


Ability to substitute oneitem for another of differentcomposition or origin withoutloss in effectiveness,accuracy, and safety ofperformance

ICC

code

Switch settings

1 - 8 2 - 7 3 - 6

A OFF OFF OFF

B ON OFF OFF

C OFF ON OFF

D ON ON OFF

E OFF OFF ON

Different cards are usedwith various versions & toact in accordance with weuse jumpers settings.

MCMU


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MCMU


900 x 600 x 2000

MCMUMCMU

OMU

BCSUBCSU BCSU

BCSUBCSU BCSU

ET orETS

ET orETS L

A N U

L A N U

C L A C

ET ET

G S W 2 K B

C L O C

PDFU 0 PDFU 1

G S W 2 K B

Fan tray Fan tray

Fan trayFan tray 2N

Marker and cellular management unit


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MCMU

Marker

CellularManagement

Functions of the Marker controls and supervises the GSW responsible for reading and writing of

the GSW finds free circuits (hunting), connects

and releases all Connections

Functions of the Cellular ManagementUnit Controls and supervises the cellular

network (circuit swiched Traffic)

LAN Switc Smooth

Operator

Providesavailableplane (O&

and use(Gb/IP).

IP conneavailableand BS

interface

LAN Unit

MCMU- Marker & Cellular Management unit


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G S W 0

G S W 1

S W C O P

S W C O P

E S B

E S B

MCMU 0 MCMU 0

ESB LAN

Three major functions Marker Cellular Management LAN Switching

MCMU and GSW are acting as pairs (for switching)

MCMU


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P S U

E S B

S W

C OP

S W

C OP

C P

U

MCMU Cartridge Computer units con

1. CPU2. Power supply

3. Functional ca

SWCOP-A


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SWCOP-A

The SWCOP-A plug-in unit is thecontrol processor of the switchingnetwork.

It performs thefunctions required by the switching andsupervision messages provided by thecontrol computer of the switchingnetwork (CPU)

The SWCOP-A controls one or two256 PCM circuit switching networkblocks. Two SWCOP-A / MCMU are usedin BSC3i High Cap.


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BCSU


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CPU LAN SW

PCULAN

SWITCH

SGSN

Gb over IPBCSU

ETETETET ETETETET

EMB LAN

GSW

Trx/ET LapdTrx/ET Lapd



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Power control or Handover control?


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Radio link measurement report UL signal level UL signal quality DL signal level (serving cell) DLsignal quality MS-BS distance MS speed Signal level of the adjacent cells

Radio Link measurementsthrough SACCH

BCSUBCSUBCSU

0

n BCSURadio Link measurementsthrough TRX LAPD

PC thresholdHO threshold


Propagation Delay &Timing Advance
http://www.google.co.in/url?sa=i&rct=j&q=question&source=images&cd=&cad=rja&docid=gNHVLJW1I53i1M&tbnid=jbbfL8NJ6Vt5iM:&ved=0CAUQjRw&url=http://fbforbusinessmarketing.com/questions/&ei=8M8cUbuOMsvhtQb7uYDgCg&bvm=bv.42452523,d.Yms&psig=AFQjCNHu83mU1B8sBBecIh3hl20PwBMxKA&ust=1360928032357412


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M2 d1>>d 2d2

BTS Frame reference

MSs transmit

Propagation Delay t p

TS0 TS1 TS2 TS3 TS4 TS6TS5

Bits Overlapping


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Abis-IF structureB


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TRXSIG BCFSIG TCH GSWET

OMU BCSU

D

B1+BSC

Abis Structure

Abis Interfacecompressed allocation

123456789101112131415161718192021222324252627282930

01 2 3 4 5 6 7 8

31

fixed CCITT frame dataTCH 1 TCH 2 TCH 3TCH 5 TCH 6 TCH 7

TCH 1 TCH 2 TCH 3TCH 5 TCH 6 TCH 7

TCH 4

TCH 4

TCH 1 TCH 2 TCH 3TCH 5 TCH 6 TCH 7TCH 4

TRXSIG 1TRXSIG 3TRXSIG 5

BCFSIG

1 2 3 4 5 6 7 8

1234

0 fixed CCITT frame dataBCFSIG TCH 2 TCH 3TCH 5 TCH 6 TCH 7TCH 4TCH 1 TCH 2 TCH 3TCH 5 TCH 6 TCH 7TCH 4

TRXSIG 2

TRXSIG 1

TRU

TRX-1

TRX-3

TRX-5

ET

ET

MCMU


PCU Functionality


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GPRS transmission plane protocol stacks

PCU / PCU2functionality


The SGSN is the most importanGPRS Data flow


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MS

BTS BSC SGSN

device in a data communicationnetwork of the GPRS network equivalent to the MSC of theGSM network.

Data traffic

GPRS Data flow Additional units


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MS

BTS BSC

SGSN

BB/RF PCU

Baseband//RFFunctionality Packet Control

Unit (PCU)

SW256

GPRS Data flow Additional units


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MS

BTS BSC

SGSN

BB PCU

PCU CS , PS separation.Resource allocation &Management .

Channel coding Power control T A etc

GSW

For additionalswitching capacity

required for switchingof GPRS calls

Data handling PCU and GSWB


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MS BTS BSC SGSN

Gb Abis (TDM)

PCU

GSWB

FrameRelay

ET ET

Packet handling PCU and ESB


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MS BTS BSC SGSN

Gb over IP Abis (TDM)

PCU

GSWET

ESB

Radio resource management- Resourceallocation


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MS BTS

allocation

Number of GPRSTime slots vary varies BCSU

PCU

Territoryallocation

Allocation withinGPRS

BSC SGSN

Radio resource management- Scheduling


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MS BTS BSC SGSN

BCSU

PCU

Gb

Radio resource management- Flow control


67/109




MS BTS BSC SGSN

BCSU

PCU

Gb

Radio resource management- TA & Powercontrol


68/109




MS BTS BSC SGSN

control

PCU

PCU and its functionalities


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BCSU PCUESB

GSW

Switching

Gb link

RRM

BCSU location


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BCSU PCUESB

GSW

BCSU

BCSU

Max 5 working B


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BCSU


900 x 600 x 2000

MCMUMCMU

OMU

BCSUBCSU BCSU

BCSUBCSU BCSU

ET orETS

ET orETS L

A N U

L A N U

C L A C

ET ET

G S W 2 K B

C L O C

PDFU 0 PDFU 1

G S W 2 K B

Fan tray Fan tray

Fan trayFan tray

Max 5 working Bbasic cabinet + sp1000 TRX

Max. capacity + mworking BCSUsextension cabinetTRX max.

N+1

BCSU BCSU


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900 x 600 x 2000

MCMUMCMU OMU

BCSUBCSU BCSU

BCSUBCSU BCSU

ET orETS

ET orETS L A

N U

L A N U

C L A C

ET ET

G S W 2 K B

C L O C

PDFU 0 PDFU 1

G S W 2 K B

Fan tray Fan tray

Fan trayFan tray

Plug-in unit PSC6-A po 1-2 PCU-B

2 x AS7-C CP816-A

BCSUTwo AS7C cards ar


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BCSU

C P

U 8 1 6 A

P S C 6 A

PCU-B can be equi

to racks 06&07PCU2-D can be equtacks 03&&07It is possible to havof PCU variants in BCSU

P C U

P C U

P C U

P C U

P C U

P C U

A S 7 C

A S 7 C

Two AS7C cards arto handle the signal

AS7-C


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GSW 0/1 A S 7 - C

C P U

BCSU

The AS7-C preprocessing unit for multichannelsignalling is a general purpose peripheral slotcomputing plug-in unit.

5* 4M PCM

BSC Configurations BSC3i 660 BSC3i 1000 BSC3

Number of BCFSIGLapD links per BCSU

84 200

Number of TRXSIGLapD links per BCSU

110 200

Channel Capacity : 2562M PCM : 10 (4+4+1)

The AS7-C plug-in unit fulfils various telecomprotocols such as SS7, LAPD and X.25.

AS7-DFLEXI BSC FLEXI B


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GSW 0/1 A S 7 - D

C P U

BCSU

The AS7-D preprocessing unit for multichannelsignalling is a general purpose peripheral slotcomputing plug-in unit.

9* 4M/8M PCM

BSC ConfigurationsFLEXI BSC

RG10FLEXI B

RG20

Number of BCFSIGLapD links per BCSU

500 700

Number of TRXSIG

LapD links per BCSU500 700

Channel Capacity : 5122M PCM : 10 (4+4+1)

The AS7-D plug-in unit fulfils various telecomprotocols such as SS7, LAPD and X.25.

PCU2D Ethernet inter10/100 BaseT


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PCU

PCU

PERIPHERAL COMPONENT INTERFACE BUS (PCI)

PCU PCUCPU

Clock

4M PCMs

8M PCMs

1

2

PCI

1 2

RS232Interfaces fordebugging


PCU2E Ethernet inter10/100/1000


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PCU

PCU

COMPACT PERIPHERAL COMPONENT INTERFACE BUS(cPCI)

PCU PCUCPU

Clock

1

2

cPCI

1

RS232Interfaces fordebugging

Modes1. Full 4M2. Full 8M3. 4 DSP PCM

Shared PC


Interfaces in PCU2D and PCU2E


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RS232 interfaces.RJ45 connectors for debugging

Backplane connectionsPCM lines to GSWs.Ethernet interfaces to LAN switchBasic timing signalsPCI Bus

RS232 interRJ45 conne

Backplane connePCM lines to GEthernet interfaBasic timing sigcPCI Bus

Clock alarm o

Workingstate

LED display

GREENGREENBLINK

WO-EX X -WO-RE - XBL-EX X -BL-ID X -BL-RE - XTE-EX - -SE-OU - -SE-NH - -



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PCU configuration


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Symmetric Asymmetric Same PCU variant in a certain slot in all the BCSUs

No specific restrictions in this configuration

PCU variant specific features are supported only onthe cells served by the proper PCU variant.

Different PCU variant in a certain slot in d

If any of the PCU1 units has a limited Ab(128 channels), this limitation applies to aslot, including PCU2

CS-3 and CS-4 are not supported by any that slot.

PCU2-E cannot be installed on the same different type of PCU


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OMU Localizes faults &Initiates recovery


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BScon

Collectshardwiredalarms withinthe BSC

OMU

x.25

TCPCM LAPD

Netact

TCSM

Interface forUSB

memory

ConPrin

Houses tomirrored Hard

disks

Connectsto VDU


OMUOMU

PDFU 0 PDFU 1


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900 x 600 x 2000

MCMUMCMU

OMU

BCSUBCSU BCSU

BCSUBCSU BCSU

ET orETS

ET orETS L A

N U

L A N U

C L A C

ET ET

G S W 2 K B

C L O C

G S W 2 K B

Fan tray Fan tray

Fan trayFan tray

BSC3i 1000/2000 Hardware and FunctionalityBSC3i Hard Disks


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Standard Hardware Unit Duplicated Hard disk un

BSC to ensure high relia Easy to change or upgra

without traffic interrupti

OMU

Standard Hardware Un Duplicated Hard disk u

BSC to ensure high rel Easy to change or upgr

without traffic interrupt


85/109


86/109

HWAT-A/BHardware Alarm Terminal conve


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GSW / CLS A S 7 - C

C P U

OMU

Hardware Alarm Terminal conveinternal hardware alarms of thsystem to the OMU.

S/O Control

CLS / CLABSBUS Sends and receives the external

of the exchange.

Performs the forced control of thchangeover of the Group Switand the synchronization unit.

EXT.ALARMS

0

0/1


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BSC LANs


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EMB LAN(Internal

communication ofcomputer units)

C(Inte

OS

PCU LAN(Packet Data -

towards GGSN )LANU

MCMU

SWU

SWU

SWU

SWU

The Ethmessagehigh permessage

BSC LANs


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EMB LAN(Internal


C(Inte

OS


towards GGSN )LANU

MCMU

The Ethmessaga high pmessag

BSC LANs

SW0 & SW1SW2 SW9


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EMB LAN(Internal


C(Inte

OS


towards GGSN )LANU

MCMU

SWU

SWU

SWU

SWU

SWU Switching unit is thegeneric name for the L2 Ethernetswitch plug-in unit integrated intothe BSC3i.The purpose of the SWU is toaggregate traffic from multiplesignaling and control units.

SW 60 SW 61

LANU LAN U

BPDFU 0 PDFU 1

B


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900 x 600 x 2000

MCMUMCMU

OMU

BCSUBCSU BCSU

BCSUBCSU BCSU

ET orETS

ET orETS L A

N U

L A N U

C L A C

ET ET

G S W 2 K B

C L O C

G S W 2 K B

Fan tray Fan tray

Fan trayFan tray

Every LANU include 3 ESB switches (2 of themare used for PCU and one for computer units)and a PSU.

2 LANUs

LAN U

BPDFU 0 PDFU 1

B


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900 x 600 x 2000

MCMUMCMU

OMU

BCSUBCSU BCSU

BCSUBCSU BCSU

ET orETS

ET orETS L A

N U

L A N U

C L A C

ET ET

G S W 2 K

C L O C

G S W 2 K

Fan tray Fan tray

Fan trayFan tray

2 LANUs Every LANU include 3 ESB switches, 2 of th

are used for PCU and one for computer units.

LANU The LAN Switching Unit hosts the SWUs foCPULANs and PCULANs.

PCU LAN

PCU-B, PCU2-D First and Se


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generation Packet Control Units ohave two (ifeth0 and ifeth1) 10/10Ethernet interfaces on the backpla

two Ethernet interfaces are sharedtwo logical PCUs of the PCU-B a

EMB & CPU LAN


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The Ethernet-based message bus (E

high performance message bus. Ededicated SWU pair of its own.plug-in units of the EMB SWUs arin the MCMUs.

CPU LAN, Managed by located in the LA

LAN connectivity in BSCBSC LAN Topology BSC LAN topology is the way of connection of the LAN devices to different internal units of

BSC d h id IP k


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BSC and to the outside IP network.

Topology Index BSC Type Top

T1 BSCi / BSC2i TG4_BX

T1T2T3T4T5

BSC3i 660 with ESB20-AsBSC3i 660 with ESB26-AsBSC3i 1000/2000 with ESB26sFlexi BSC with ESB26sFlexi BSC with ESB24-As

TG4_E


BSC3i 1000/2000 Hardware and FunctionalityLANU External ConnectionsBoth 1000Base- Sx LAN interfaces (ports 0407, 1215) for 1 Gbit/s uplinks and

10/100/1000Base- T/Tx LAN interfaces (ports 0003, 0811) for 10/100 Mbit/


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10/100/1000Base T/Tx LAN interfaces (ports 0003, 0811) for 10/100 Mbit/copper uplinks in CPRJ45-A panel will be used in S13 new delivery BSC3i. Uplinkchosen from 3 uplink alternatives:

10 Mbit/s uplink (copper)100 Mbit/s uplink (copper)1 Gbit/s uplink (both copper

and optical available).

28ASYMM 1

CLS 0, 1

EXT AL INPUT

LAN INT ERFACES

B A

EXT SYNC IN

INTERFACES

(V.24) (V.24)

(V.24) (V.24)

(V.11) (V.11)

24 25

02

10 11

03

18

SYMM 0CLS 0, 1

19

SYMM 1CLS 0, 1

16

LPT 0 VDU 0

26 27

17

00

08

01

09

21

T x Rx

T x Rx

Tx Rx

Tx Rx

VDU 2 LPT 2

LPT/VDU INTERFACES

VDU 1 VDU 2

20ASYMM 0

CLS 0, 1

04

12

05

13

1000Base-Sx up10/1 00/1 000Base-T/Tx uplinks


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100/109




K B

PDFU 0 PDFU 1

K B

CLT3G


101/109




900 x 600 x 2000

MCMUMCMU

OMU

BCSUBCS U BCSU

BCSUBCSU BCSU

ET orETS

ET orETS L

A N U

L A N U

C L A C

ET ET G S W 2 K

C L O C

G S W 2 K

Fan tray Fan tray

Fan trayFan tray

CLAB

CL3TG : Clock and Tone GeneratorGenerates the basic timing signals needed by the exchange, eitherindependently or synchronized to a frame alignment signal received fromthe Exchange Terminal (ET) or external frequency standard (FS)


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Number ofsynchronizationinputs: Four from PCMlines Two externalinputs (120 ohmbalanced/ 75 ohm

unbalanced)

OMU

Wired alarminterface to

OMU

the Exchange Terminal (ET) or external frequency standard (FS).

CLAB-S

CLOCK & ALARM BUFFER UNIT : Distribute the clock signals to the units in the same cabinet. Collect the wired alarms from the units whose timing it


103/109




2inac

OMU

wired alarmsfrom the unitswhose timing

it handles

ghandles & transfers them further to the OMU.

CL3TG

SBUS

PDFU-B (BSC3i)

The power distribution fuse unit (PDFU) distributes the48V/ 60V DC power from the site power system to the

RECTIFIERS /

PowerSource 1

PowerSource 2


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-48V/-60V DC power from the site power system to thecartridges through the distribution cables.

The PDFU also contains the fuses for these cables,along with alarm circuits for the incoming voltages andits own fuses.

2 x PDFU-B units(2N redundancy)

PDFU-B 0

DistribuBS

Cartri

Source 1 Source 2

PDFU-B (FLEXI BSC)

The power distribution fuse unit (PDFU) distributes the48V/ 60V DC power from the site power system to the


105/109




-48V/-60V DC power from the site power system to thecartridges through the distribution cables.

2 x PDFU-B units(2N redundancy)

BSC3i 1000/2000 Hardware and FunctionalityFTRB-A (enhanced fan tray unit)fron


106/109




BOTTOM

TOP

New part air flow also in frontof plug-in unit front plates.

FTRB-A

BSC3i 1000/2000 Hardware and FunctionalityBSC3i 1000/2000 Plug in Units summary

Used also inBSC3i 660

Used also inNokia Core MSS, HLR, etc.


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BSC3i 660

AS7-C

CL3TG ESB26 HDPU-A HWAT-A MO91 ODPU-A PCU2-D PSC6-A SERO-B SWCOP-A WDW73

New plug-in units in BSC3i1000/2000

SW256B ET16 ETS2 FTRB-A

CLAB-S

CP816-A

Removed units from BSC3i 660 MB (Message Bus)

New Unit LANU EMB (Ethernet Message Bus)


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Functional unitsCartridge Types

PCU BCSU

LAN switch

MCMU OM

Ethernet


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Unit Description RedundancyBCSU BSC Signaling Unit (BCSU) N+1MCMU Marker and Cellular Management Unit (MCMU) 2NOMU Operation & Maintenance Unit (OMU) OMU supported by MCMUs

including System Disk and Magneto-Optical Drive 2N for hard disks

PCU Packet Control Unit (integrated in the BCSU) N+1CLS Clock & Synchronization Unit (CLOC) 2NET Exchange Terminal (ETC) N+mGSWB Bit Group Switch (GSW1KB) 2NSWU LAN Switching Units 2NEMB Ethernet Message Bus 2N

PDHPCU BCSU

ET CLSGSWB

MCMU OM

Message Bus

bss oam bsc architecture v4

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