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1 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
Nokia BSC3i
part 1
Franco SettiRadio Controller PMM
Nokia Networks
2 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
BSC3i workshopAgenda
-BSC3i Configuration-BSC3i Architecture-BSC3i units-OSS interconnection
capabilities-Summary
3 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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.
4 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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
5 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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
6 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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
7 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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
8 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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
9 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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
10 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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.
11 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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
12 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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%
13 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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
14 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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
15 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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
16 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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
17 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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
18 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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
19 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
Operation&Manintenance Unit (OMU) /
Clock and synchronisation unit (CLS)
20 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
Exchange Terminal
21 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
• 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
22 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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
23 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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
24 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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
25 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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)
26 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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
27 © NOKIA BSC3i PKT / Franco Setti Nokia Customer Confidential – non binding
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)