nsn flexi bsc introduction s14

Soc Classification level

Presentation / Author / Date1 © Nokia Siemens Networks

Flexi BSC (BSS14)Vodafone India

Flexi BSC Pilot



BSC3i 3000 Product Highlights

Triple capacity per footprint

• Low site-space costs thanks to 3,000 TRXs in

one cabinet

Power consumption down by 50%

• Market-leading power consumption per capacity

Very high packet data capacity for EDGE

evolution

• Market-leading 30,720 channels

Very high circuit-switched capacity for voice

• Market-leading 18,000 Erlangs

Support for most cost-efficient transport options

• Full flexibility to configure preferred integrated

transmission

type (E1/T1, STM-1/OC-3, IP)– IP/Ethernet on all interfaces

2000 x 900 x 600 mm



PDFU 0PDFU-B

PDFU 1PDFU-B

BCSU 2BCSU 1 BCSU 3

BCSU 5BCSU 4 BCSU 6

FTRB 1FTRB 0

CL

S 1

GSW2KB1

OMU

CC3C-A

BCSU 0

CC3C-B

MC

MU

0

MC

MU

1

DC3C-B

GSW2KB0

GTIC1

GTIC0

CL

S 0

ETC0

ETC1

ETC2

ETC3

SGC1C-A

SGC1C-A

BC1C-A

BC1C-A

LA

NU

0L

AN

U 1

BSC3i 3000 Product Configuration

Single-cabinet configuration

• 3,000 TRXs, 3,000 BTS Sectors, 3,000 BTS Sites

Scalable capacity

• 500 TRXs per BCSU

High packet-switched traffic handling capacity

• Maximum 30,720 x 16 kbit/s Abis channels for GPRS/EDGE data

• 1,024 channels per PCU

High circuit-switched traffic handling capacity for voice

• 18,000 Erlangs

Enhanced transmission solutions on top of E1/T1

• 800 E1T1

• 16 + 16 STM-1/OC-3 optical connections

• 8 + 8 Gigabit Ethernet connections (equivalent to 16 + 16 STM-1/OC-3)

Triple Capacity per Footprint2000 x 900 x 600 cabinet

FTRB 3FTRB 2



Footprint Efficiency Evolution of BSC3i

Continuous evolution of BSC3i guarantees:

• Significantly lower power consumption per capacity

• Significantly smaller footprint per capacity

< 1 W per TRX > 30,000 Erl per sqm

0

0.5

1

1.5

2

2.5

BSC3i 660 BSC3i 1000/2000 BSC3i 3000

Watts / TRX

0

5000

10000

15000

20000

25000

30000

35000

BSC3i 660 BSC3i

1000/2000

BSC3i 3000

Erlangs per sqm

2.5

2

1.5

1

0.5

0

35,000

30,000

25,000

20,000

15,000

10,000

5,000

0

* power consumption figure vary based on actual configuration



BSS BSC Evolution Steps - 2009

Connectivity / TRXs

Circuit Switched / Voice

Packet Switched / Data

Transmission

- E1/T1

- STM-1/OC-3

- IP

Transcoding

/ channels

660 TRXs

4 000 Erl

6 140x 16 kbit/s CHs

256 E1 / T1 lines

-

4 GE links for Gb, O&M, Lb, Sigtran, DFCA

960 channels

with TCSM2

Data BSC3i 660

3 000 TRXs

18 000 Erl

30 720 x 16 kbit/s CHs

800 E1 / T1 lines

16 STM-1/OC-3

12 GE links including also Abis and Ater i/f

34 000 channelswith TCSM3is

Flexi BSC

RG10 (2009)

2 000 TRXs

12 000 Erl

25 600x 16 kbit/s CHs

800 E1 / T1 lines

16 STM-1/OC-3

8 GE links for Gb, O&M, Lb, Sigtran, DFCA

11 520 channels with TCSM3i

BSC3i 1000/2000

BSS12 (2007)Release / Availability

“Flexi BSC Product Family”



RG 10 Software Compatibility

Note : The SW compatibility requirements set by optional software features are described in details on document BSS14 Features Under Development



Packet Control Unit PCU2-E

• PCU2-E capacity– PCU2-E capacity is collected in the table below together with the respective values of PCU2-D

for comparison

– The capacities below are achievable per logical PCU

Parameter PCU2-E PCU2-D

#BTS objects 384 128

#EGPRS cells 256 64

#TRX 1024 256

#Abis channels

#logical PCU 1 2

1024 256

#EDAP 60 16

#BCF 512 128



New set of features require higher basic SW release memory configuration

RG 10 BSC Memory Requirements

S12 S13 RG10

OMU 512 MB 512 MB 1 GB

MCMU 512 MB 512 MB 1 GB

BCSU 512 MB 512 MB 512 MB



PDH and SDH/Sonet and IP/Ethernet Connectivity

E1/T1

STM-1/OC-3

IP/Ethernet

STM-1/OC-3

E1/T1

160

16 + 16*

or 8 + 8

16 + 16*

800

Mixed examples 1Flexible for Abis, Ater and Gb

with full HW redundant ETS2/ETIP1-A

SDH/Sonet Connectivity (max.)

PCM Connectivity (max.)

Flexi BSC

Note: * for redundancy

704

6 + 6*

or 3 + 3

Mixed examples 2Flexible for Abis, Ater and Gb

with full HW redundant ETS2/ETIP1-A

E1/T1

STM-1/OC-3

IP/Ethernet

Giga-Ethernet 12 + 12*IP connectivity (max.)IP for all interfaces



BSS14 Features



Without

• Service continuity 2G / 3G for services with high data rates not ensured

• Gap between 3G (HSxPA) and EDGE is too big

• Performance needed for 3G services is not always ensured if coverage is not

uniformed

With

• Assignment of timeslots from two carriers

• Increase of data rates up to 100 %

• No impact on existing frequency planning

• Examples for high speed services

• High speed internet browsing

• High speed file download

• MMS at high speed

• Movie Trailer, Video Clips, Web cams, Video Phone, Shared TV…

Downlink Dual Carrier (DL DC)

First major step in the GERAN Evolution

BACKBACK



MS

BSS

Gross Peak Data rates up to ~1 Mbit/s

94747424742371

Air interface peak data rate [kbps] 8 TS@MCS-9/carrier

Air interface peak data rate [kbps]4 TS@MCS-9/carrier

# of carriers

Example: Dual Carrier

MS

BSS

Single Carrier Dual Carrier

f1

f2

f1

Downlink Dual Carrier (DL DC)

Peak Data rates up to 1 Mbit/s

BACKBACK



Without

• Speech based on narrowband speech

• Bandwidth from 300Hz to 3400Hz

• Speech sampled at 8kHz

With

• Speech based on extended bandwidth

• Bandwidth from 50Hz to 7000Hz

• Speech sampled at 16kHz

• Coding schemes for AMR-WB full-rate channels with GMSK modulation:TCH/WFS with source bit rates of 6.60, 8.85 and 12.65 kbps

Wideband AMRBringing Mobile Speech Quality to new levels

Improved voice quality for 2G/3G mobile �� mobile calls

BACKBACK



• Superior Voice Quality – AMR WB provides improved speech quality:

• Better than fixed line and AMR NB speech quality

• Naturalness and intelligibility of speech, easier speaker recognition

• High speech quality perception ⇒ longer duration of calls, i.e. increased ARPU

• No re-planning of the network, no additional sites

• Seamless WB AMR service in 2G/3G

Wideband AMRBringing Mobile Speech Quality to new levels

Operator Benefits

BACKBACK



Conditions:

Filters AMR-WB: P.341 and MSIN

Filter AMR-NB: MIRS

Error free radio conditions

Speech English

Speech English with background noise

Speech French

Music

Let’s hear the difference:

TCH/AFS12.2 TCH/WFS12.65

Wideband AMRSpeech Samples

BACKBACK



Energy Saving Modes for BCCH

• BCCH is transmitted continuously and 3GPP specifications allow 2 dB lower Tx power for 8-PSK on the BCCH.

• This featured reduces also power for GMSK modulated TCHs and idle time slots by 2dB. With accurate power control of Nokia BTS this is within 3GPP tolerances.

• Typically saves are about 100 Watts for Tri-sector Edge UltraSite in low traffic

• Enabling both Idle and TCH Speech power reduction is recommended

– Maximises power savings– Minimises differences in BCCH power measured by mobile in high and low traffic times

OPEX saving via reduced Electricity consumption

Idle Channels can use

2 dB lower Tx power level

BCCH/CCCH

SDCCH

TCH

TCH

Idle

Edge

Edge

GPRS

BCCH/CCCH

SDCCH

TCH

TCH

Idle

Edge

Edge

GPRS

0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7Timeslot

Tx Power

Pmax

Pmax-2dB

Time

Mobile may measure BCCH

power at any time. However

impact to possible cell selection

is estimated to be insignificant

With BCCH Power Save ModeSpeech Channels can use 2 dB dynamic

power control

BACKBACK



Flexi EDGE TRX power down in low traffic Dual TRX

OPEX saving via reduced Electricity consumption

BACKBACK

• Shutdown of TRXs during the low traffic hours

• BSC can use Flexi EDGE BTS to turn off -48V supply to Dual TRX

• To be used for configuration where there is more than one Dual TRX in cell

• Up to 6 DTRX configurations available

• Estimated power savings in different configurations would be:

• Epsilon 4+4+4 shutdown to 2+2+2 120 Watts



• Epsilon 12+12 shutdown to 2+2 400 Watts

• Note: This feature cannot be utilized for Dual TRX in cases there is BB and/or antenna hopping enabled



PCU2 HW Configuration with one unit granularity

Benefits for the Operator:

• Asymmetrical PCU HW configuration optimizes PCU HW configuration possibilities. PCU HW can be installed and activated in granularity of one by following traffic needs.

Functionality:

• PCU HW can be installed into BSC in granularity of one PCU HW plug-in unit. BCSUs are equipped with PCU HW units according to traffic needs, i.e. PCU HW units are added to BCSUs one by one until full PCU HW unit amount is reached in the BSC.

...

• Spare BCSU – threePCU cards configured. Enough PCU cards to replace any of the active BCSU units

• Active BCSU – threePCU cards configured.

• Active BCSU – two PCU cards configured.

BCSU – 0 SP - EX

BCSU – 1 WO - EX

BCSU – N WO - EX

PCU2 HW installed and activated in granularity of one and according traffic needs

BACKBACK



Key Highlights

• Tripple the Capacity per footprint

– 3000 Trx – 18000 Erlang circuit switched capacity– 30720 PDCH channel

• Low power consumption

– < 0.75 watts per trx

• Support all transmission options

– E1/TE, STM, IP

• Enhance throughput

– Dual downlink carrier

• Power saving features

– Energy mode saving for BCCH

– Load based Trx shutdown

• Improve Voice quality

– Wideband AMR

• Asymmetrical PCU configuration



Thank you

RNC

BSC

Groundbreaking multicontroller platform

nsn flexi bsc introduction s14

Documents

bts sitesscalable capacity

interfaces2000 x

footprint2000 x

kbits abis channels

kbits chs800 e1 t1 lines16

ge links

edge evolution market

lower power consumption