BSC3i 1 of 2

1 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding

Nokia BSC3i

part 1

Franco SettiRadio Controller PMM

Nokia Networks


BSC3i workshopAgenda

-BSC3i Configuration-BSC3i Architecture-BSC3i units-OSS interconnection

capabilities-Summary


Why new product?

What is the BSC3i-model?

Why the name BSC3i?

Market requirement for more compact BSC with higher CS and PS capacity was clearly seen.

The Nokia DX 200 High Capacity Base Station Controller named BSC3i is a new variant of BSC. It is based on so called more modern DX200 M98 mechanics (Compact PCI bus technology), already in use in MSCi and 2G SGSN products.

The letter "i" means improved (as in MSCi) and 3 means, that this is third generation BSC product.

3 likes in 3G as this product provides even more packet handling capacity than earlier ones and suits well to EDGE

and GERAN.


Nokia GS/EDGE product familyGeneral name Product name Explanation

BSCE BSCE First generation Nokia DX 200 BSC

BSCi BSCi High Capacity (upgraded and improved) version of the first generation Nokia DX

200 BSC

BSC2 BSC2A American National Standards Institute (ANSI) version of the second generation

Nokia DX 200 BSC2

BSC2E European Telecommunications Standards Institute (ETSI) version of the second

generation Nokia DX 200 BSC2

BSC2i BSC2i, ANSI version

American National Standards Institute (ANSI) High Capacity version of the Nokia

DX 200 BSC2

BSC2i, ETSI version

European Telecommunications Standards Institute (ETSI) High Capacity version of

the Nokia DX 200 BSC2

BSC3i BSC3i, ANSI version

American National Standards Institute(ANSI) High Capacity version of

the Nokia BSC3i

BSC3i, ETSI version

European Telecommunications Standards Institute (ETSI) High Capacity version of

the Nokia BSC3i


GSM/GPRS evolution is far from over

Most Advanced GSM/EDGE BSC – New Nokia BSC3i

• Highest Circuit and Packet Switched Capacity

• New Compact One Cabinet Design

• Latest Technology with Highest Reliability

• Optimal Investment for Years to Come


Nokia High Capacity BSC3i

• Very high circuit and packet handling capacity up to: 660 TRX, 3920 Erl, 48Mbit/s

• Modularity for easy expansion• Compact size with only one cabinet

design• Built-in IP connectivity for enhanced

feature support with IP based interfaces

• Efficient use of transmission and radio resources with flexible traffic mix between voice and data

• Swift fault detection and hot standby units to allow minimal system downtime

Reliability and Power in Compact Size


More Traffic Handling Capacity

30% More Voice and Circuit Switched

Data capacity

50% More Packet Switched

Data capacity

Designed for high data usage to ascertain network evolution in GPRS/EDGE/GERAN

2000 2001 2002 16 Mbit/s 32 Mbit/s 48 Mbit/s

BSC

3i

128 TRX 256 TRX 512 TRX 660 TRX 760 Erl 1520 Erl 3040 Erl 3920 Erl

BSC

E

BSC

2E/A

BSC

i/B

SC

2i

BSC

3i


BSC configurations (S10.5) Large Capacity BSC – BSC2E

High Capacity BSC – BSCi

High Capacity BSC – BSC2i

High Capacity BSC – BSC3i

Supported in BSC type BSCE BSC2E BSC2A

BSCE BSC2E BSC2A

BSC3i

Maximun radio network configuration

200 BCF 248 BTS 256 TRX

248 BCF 248 BTS 512 TRX

248 BCF 248 BTS 512 TRX

248 BCF 248 BTS 660 TRX

Allowed CPU type in OMU /minimun size of memory in MB

CP4HX/128 CP4HL/128 CP6LX/128 CP6MX/128

CP6LX/128 CP6MX/128

CP6LX/128 CP6MX/128

CP710/256

Allowed MCMU type in OMU /minimun size of memory in MB

CP4HX/128 CP4HL/128 CP6LX/128 CP6MX/128

CP6LX/128 CP6MX/128

CP6LX/128 CP6MX/128

CP710/256

Allowed BCSU type in OMU /minimun size of memory in MB

CP4HX/64 CP4HL/ 64 CP6LX/ 64 CP6MX/128

CP6LX/ 64 CP6MX/128

CP6LX/ 64 CP6MX/128

CP710/256

Allowed Group Switch type / maximum number of PCM

GSWB/128 GSWB/128 GSWB/192

GSWB/128 GSWB/192GSWB/256

GSWB/256

Maximum number of external PCMs

56/BSCE80/112/BSC2E

56/88 80/112/144 124

Maximum number of SDCCHs per BCSU

384 768 768 1760

Maximum number of TCHs per BCSU

256 512 512 880


New BSC mechanics in one cabinet is capable to handle 660 TRXs

1000

2000

3000

4000

5000

6000

7000

BSCE BSC2 BSC2i BSC3i

Erlangs per square meter (footprint)

BSC3i - Size goes Down; Erlangs and Mbps go Up


BSC3i call mix reference model

Reference model of call traffic (call mix and parameters):Mean holding 120 s

Proportion of MS originated 70%

Proportion of MS terminated 30%

Proportion of handovers 1.5 HOs per call

Proportion of location updates 2 Lus per call

Proportion of IMSI 0.1 detaches per

For terminating call attempts, the no-answer call attempts to paging

63%

SMS call rate 1 req./sub./1

The maximum processing capacity of a BSC3i is 3920 Erl/117000 BHCA, giving full support to 660 FR TRXs.


Optimum use of available radio channels

Capacity for both circuit and packet-switched traffic

FlexibleBSC3i

FlexibleBSC3i

• Add capacity in pace with demand• Perfectly matched to increased

performance for new GSM/EDGE services

PSPS Radio channels used

for both CS and PS

CS trafficCS trafficRadio channels used

for traditional circuit-switched

voice and data traffic

Radio channels used for CS, and PS for both

GPRS and EGPRS services

Future traffic distribution in GSM/EDGE• Share of packet-switched data will increase• Networks require capacity for PS traffic

CSCS

PS(GPRS)PS(GPRS)

CSCS

PS (EGPR

S)

PS (EGPR

S)

Packet Switched Traffic

Circuit Switched Traffic

Years


Optimum Use of Available Radio Channels

Capacity for both Circuit and Packet Switched Traffic

With two PCU-B/BCSU configuration up to 76% of the traffic can be PS when calculated as follows:

CS traffic per BSC3i BCSU unit

13kbit/s CS traffic in one time slot * 7.5 tch * 110 TRX / 1024 = 10.4736 Mbit/s

PS traffic per BSC3i BCSU unit

Two PCU-B/BCSU 2*4Mbit/s

PS traffic / CS traffic = PS Share

--> 8Mbit/s (PS) / 10.4736 Mbit/s (CS) = 76%


BSC3i Configuration

BCSU BSC Signalling Unit including Packet Control Units

CLS Clock & Synchronization Unit

ET Exchange Terminal

GSWB Bit Group Switch

MCMU Marker and Cellular Management Unit

including IP Switch

OMU Operation & Maintenance Unit including System Disk and Magneto-Optical Drive

MCMU2N

CLS

GSWB2N

OMU& SD

BCSUN+1

ET ET

BCSUN+1

BCSUN+1

• Modular and scalable implementation• Small amount of different type of plug-in

units• Extremely high availability• Smooth upgrades and extensions

without services loss


BSC3i Architecture

Ethernet interfaces forGb/IP, Lb/SMLC, BSC-BSC• 4+4 100baseTx• 2+2 1000baseSx

readiness

124 E1/T1 for Abis, Ater, Gb/FR Interfaces, freely configurable

• Internal redundant IP switch and Ethernet bus interconnecting all functional units

• External IP connectivity for future needs


BSC3i LAN Connection PrincipleIP

Network

EMC Interface(Connector

panel)

VRRP

2x100 Mbps up-link

PCU

BCSU 0

PCU

IP switchMCMU 1 IP switchIP switch

PCU

BCSU 6

PCU

BCSU 0

CPU

BCSU 6

CPU

MCMU 0

CPU

MCMU 1

CPU

OMUCPU

2x100 Mbps

100 Mbps

BSC3i cabinet

MCMU 0

IP switch

Gb over IP traffic

2x100 Mbps

2x100 Mbps up-link


BSC3i Functional Units

PDFU 0PDFU-A

GSWB 0SW1C-C

CL

S 0

,1C

LOC

-B

GSWB 1SW1C-C

ET4C 0ET4C-B

(32*ET2E/A)

ET4C 1ET4C-B

(30*ET2E/A)

FTRB 0 FTRB 1

FTRB 2 FTRB 3

CPRJ45 CPGOCPGO

PDFU 1PDFU-A

PDFU 2PDFU-A

PDFU 3PDFU-A

Marker and CellularManagement Unit,

MCMU

Marker and CellularManagement Unit,

MCMU

BSC SignallingUnit, BCSU

BSC SignallingUnit, BCSU

Operations and Maintenance

Unit, OMU

Operations and Maintenance

Unit, OMU

OMUCM2C-A

BCSU 1CC3C-A

BCSU 0CC3C-A

BCSU 2CC3C-A

BCSU 4CC3C-A

BCSU 3CC3C-A

BCSU 5CC3C-A

BCSU 6CC3C-A

CC4C-ACC4C-AMCMU 1MCMU 0


Marker Cellular Management Unit (MCMU)/

Bit Oriented Group Swith (GSWB)

1 2 4 5 6 73

DBG

RST

J7

J6

WO

RUN

LF

OL

TE

AP

DRAM

SB

CPSI

SCSI

ETx0

ERx0

OPROPROPR

ON

OFF

PS

C6-

A

MB

IF-B

0

MB

IF-B

1

CP

U

SW

CO

P-A

ES

B20

ES

B20

ETx1

ERx1

ET

H1

ET

H2

ET

H1

ET

H2


Base Station Controller Unit (BCSU)

1 2 4 5 6 73 8 9 10

AP

DBG

RST

J7

J6

WO

RUN

LF

OL

TE

AP

DRAM

SB

CPSI

SCSI

ETx0

ERx0

OPROPR

APAP

OPR

ON

OFF

PS

C6-

A

MB

IF-B

0

MB

IF-B

1

CP

U

AS

7-B

2

AS

7-B

1

AS

7-B

0

PC

U-B

3

PC

U-B

4

ETx1

ERx1

RUN0

RUN1

RUN0

RUN1

High Capacity

BSC – BSC3i

Number of BCFSIG lapD links per BCSU

43

Number of TRXSIG lapD links per BCSU

110

Maximum number of SDCCHs per BCSU

1760

Maximum number of TCHs per BCSU

880


Operation&Manintenance Unit (OMU) /

Clock and synchronisation unit (CLS)


Exchange Terminal


• Mobile Pentium®III with 800 MHz frequency

• 256 MB SDRAM • Supports standard external

interfaces• two 10 Base-T /100 Base-TX

Ethernet • Wide Ultra3 SCSI

• The unit is connected to the back plane CompactPCI bus.

BSC3i Processing Unit CP710-A, Pentium III Central Processing Unit


BSC3i Packet Control UnitPCU-B

• Two PCU functions are integrated in one plug-in unit; 2 microprocessor blocks are identical and work independently to handle the tasks

• Includes Power PCs and DSPs assembled to the same plug in-unit with 2 x 256 MB SDRAM memory

• Supports standard external interfaces• two 10 Base-T /100 Base-TX

Ethernet• three 4 Mbit/s PCM line to GSWB

• The unit is connected to the back plane CompactPCI bus


BSC3i Hard Disks

• Standard Hardware Unit in BSC3i• Duplicated Hard disk units per BSC to ensure high reliability

• Easy to change or upgrade without traffic interruption

• BSC3i is delivered with36G Hard Disks


BSC3i MO Unit

• Standard Hardware Unit in BSC3i

• Optical disk will provide reliable means for backup copying SW and database on a transferable media in BSC

• Provides even better reliability and performance with longer media life cycle compared with Digital Audio Tape (DAT) technology.

• New BSC3i deliveries are configured with 9.1G MO units


BSC3i GSWB unit

• Conveys the traffic passing through the BSC

• Establishes needed connections to the signalling units and the internal data transmission channels

• Is responsible for the submultiplexing functions of the BSC

Default configuration includes power supply (PSC1-S) unit and 4 x SW64B units with SWBUS4 (256 PCMs)


BSC3i Clock Unit

Clock and Tone Generator (CL3TG) plug-in units

• Allows external synchronization input via connector panel

• Duplicated units are configured per BSC3i• Housed in the CLOC-B cartridge


BSC3i ET Units

• Provides the external PCM line connections for BSC

• Each ET2 plug-in units contain two separate PCMs

• Different ET2 plug-in unit types: - ET2E-S (symmetrical) and ET2E-SC (coaxial) used for ETSI environment - ET2A used for ANSI environment

• BSC3i includes in maximum 62 ET2 units providing 124 external PCMs (E1/T1)

BSC3i 1 of 2

Documents

nokia customer confidential

packet handling capacity

high capacity version

bcsu maximum number

omu minimun size

cs traffic

cp6lx 64 cp6mx 128

run0 run1