03 flexi bsc architecture and functionality

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Flexi BSC and TCSM3i Architecture and Functionality

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1 © Nokia Siemens Networks RN23273EN14GLN1

Flexi BSC and TCSM3iArchitecture and FunctionalityFlexi BSC and TCSM3i CommissioningRG10 (BSS)

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Module objectives

After completing this module, the participant should be able to:

• Describe the architecture of Flexi BSC

• Explain the functionality of the units in Flexi BSC

• Explain the new Plug in Unit in Flexi BSC

• Explain the capacity of Flexi BSC

• Describe the architecture of TCSM3i

• Explain the functionality of the units in TCSM3i

• Explain the new Plug in Unit in TCSM3i

• Explain the capacity of TCSM3i

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Table of Content

• Flexi BSC Architecture and Functionality

• TCSM3i Architecture and Functionality

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Flexi BSCArchitecture and FunctionalityRG10 (BSS)

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Module objectives


• Describe the architecture of Flexi BSC

• Explain the functionality of the units in Flexi BSC

• Explain the new Plug in Unit in Flexi BSC

• Explain the capacity of Flexi BSC

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Table of Content

• Flexi BSC in Brief

• Flexi BSC Architecture

• Flexi BSC Hardware & Functionality

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Flexi BSC in Brief

Instructional Notes

•The emphasizes for Introduction to BSC3i 1000/2000 are:

•The generation of Nokia BSC, from the 1st

generation up to 3rd generation.

•The development of the release Software, especially related BSC3i

•The general characteristics that BSC3i 1000/2000 has, benefits, and capacity improvement.

•General overview of cabinet configuration for BSC3i with capacity 1000 and 2000.

•Highlight the capacity improvement related to radio network configuration

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Flexi BSC in BriefGeneral Evolution of BSC Products

• 2nd BSC generation• Large Capacity SW

up to 256 TRX (S6)with 2 racks

Third generation

• 660 TRXs with 1-cabinetBSC3i 660 configuration (S10.5)

• 1000 TRX with 1-cabinet and up to 2000 TRXs with 2 cabinets by BSC3i 1000/2000 (S12 & S13)

• 3000 TRX with 1-cabinet by Flexi BSC (BSC3i 3000) (S14)

• Complete solution for future CS and PS traffic handling capacity requirements with IP connectivity

• High Capacity BSC along with smooth upgrade path (S8)

• Capacity increase up to 512 TRX with 2 racks

1991 1995 1999 2002

Second generation

BSC3i

BSC2i

BSCE• First BSC generation• Up to 128 TRX with 2

high racks

BSC2

First generation

2007 2009

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Flexi BSC in BriefBSC Product Naming on RG10 level

3000 TRX one cabinet configuration (RG10 (BSS) with BSC SW level S14)

Flexi BSC

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

1000 TRX one cabinet or 2000 TRX two cabinet configuration, upgradeable to Flexi BSC

BSC3i 1000/2000

660 TRX one cabinet configuration, upgradeable to Flexi BSCBSC3i 660Flexi BSC product family

High Capacity version of the second generation Nokia DX 200 BSC2

BSC2i

High Capacity (upgraded) version of the first generation Nokia DX 200 BSC (BSCE)

BSCiBSCi/2i

ExplanationProduct nameGeneral name

• Flexi BSC product family is a general term for all versions upgradeable to Flexi BSC configuration

• Flexi BSC as product name is specific for the 3000 TRX one cabinet product/configuration

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Flexi BSC in BriefBSC3i Development in S13 onward

New Ethernet / IP interface option withETIP1-A

New Group Switch

controller SWPRO-C

New PCU2-Eunits with extended capacity

Prior to S13

S14

1 x AS7-Cunit replaced

3 x AS7-B

in BCSUs

S13

New site cabling solution with 2 PCM

in one cable

New mass memory

solution with hard disks and USB memory

stick (DCAR1-A)

New AS7-D

for higher signaling capacity

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Flexi BSC in BriefMain Characteristics

• Boosted capacity from compact size

• 3000 TRXs

• 30720 channel @16 kbps Abis for PS traffic

• 16 STM-1/OC-3 interfaces

• 800 E1/T1 interfaces

• 12 + 12 Gigabit Ethernet connections

• Long-standing backbone • High footprint efficiency

• Excellent power consumption efficiency

• Advanced architecture

• Superior flexibility and scalability

• Future evolution capability2009

Flexi BSC

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Flexi BSC in BriefFlexi BSC increases usable capacity

BSCE BSC2E BSC2i BSC3i 660 BSC3i 2000 Flexi BSC128 TRX 256 TRX 512 TRX 660 TRX 2000 TRX

BS

C2i

BS

C2i

BS

C3i

660

BS

C3i

660

BS

C3i

200

0 (

118

80

Erl)

BS

C3i

200

0 (

118

80 e

rl)

PS Traffic handling capacity

BSCE BSC2E BSC2i BSC3i 660 BSC3i 2000 Flexi BSC2048 4096 4096

4.5 x6 x

Notsupportedin S14

Notsupportedin S14

BS

C3i

200

0 (

118

80

Erl)

FLE

XI B

SC

(18

000

Erl)

1.5 x

3000 TRX

(8x1x1x256) (8x1x2x256) (8x1x2x256)

6144

(6x2x2x256)

25600

(10x5x2x256)

30720(6x5x1x1024)

5 x

BS

C3i

200

0B

SC

3i 2

000

BS

C3i

BS

C3i

FLE

XI B

SC

1.2 x

number of Abis channel @16kbPs PS TCH

# BCSU’s/BSC x # PCU piu’s/BCSU x # logical PCU’s/PCU piu x #max Abis channel @16Kbps for PS TCH

CS Traffic handling capacity

PS Traffic Handling Capacity:

•BSC3i 660:

6 BCSU’s / BSC

2 PCU2-D piu’s / BCSU

2 PCU’s / PCU piu

256 TCH’s / PCU

= 6 x 2 x 2 x 256 = 6144 @16kbit/s PS TCH’s

•BSC3i 2000:

10 BCSU’s / BSC

5 PCU2-D piu’s / BSC

2 PCU’s / PCU piu

256 TCH’s / PCU

= 10 x 5 x 2 x 256 = 25600 @16kbit/s PS TCH’s

•Flexi BSC (BSC3i 3000):

6 BCSU’s / BSC

5 PCU2-E piu’s / BSC

1 PCU’s / PCU piu

1024 TCH’s / PCU

= 6 x 5 x 1 x 1024 = 30720 @16kbit/s PS TCH’s

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Flexi BSC Architecture

Instructional Notes

•The emphasizes for BSC3i 1000/2000 Architecture are:

•Review of GSM Network architecture and general functionality of BSC.

•Review the Nokia DX200 Switching platform as basic platform for BSC, including the functionality of each units.

•Present the architecture of BSC3i 1000/2000 with software release S12.

•Highlight the differences in the architecture between BSC3i 1000/2000 rel S12 and with BSC3i with prior to S12.

•Highlight the advantage of using Ethernet (EMB) based for message bus instead of using conventional message bus (MB).

•Explain the new TCSM solution that are introduced, and alternative implementation solution (BSC3i/TCSM3i combi).

•Explain the new structure of LAN connection for BSC3i 1000/2000 release S12

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Flexi BSC ArchitectureBSC3i in the GSM/EDGE (and 3G) mobile network

BTSBSC

WCDMA BTS

WCDMA RNC

2G

3G

Radio Access Network Radio Access Network

Internet

Intranet

2G SGSN

3G SGSN

TCSM

MGW

MSC

IN

HLR

PSTN/ ISDN

• The Nokia GSM/EDGE Base Station Controller (BSC3i) is a modern fault tolerant system for GSM 800/GSM 900/GSM 1800/GSM 1900 networks.

• The main function of the BSC3i is to control and manage the Base Station Subsystem (BSS) and the radio channels.

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Flexi BSC ArchitectureBlock diagram of Flexi BSC (RG10 (BSS) release)

SET

SET

ET

ET

SET or

EET

TCSM3i-part

CLS

GSW2KB-A

ET

CLS

PCU

BCSUInternal LAN

Switch PIU for

PCU LAN

MCMU OMU

Internal LAN Switch CPU for CPU LAN

EMB

Hard Disk Drive

USB Memory

Gb over IPSGSN

SGSN

BTS

SGSN

Gb over Frame Relay

BTS

SGSN

Gb over Frame Relay

Ater A

MSC

MSCTCSM3iAter

A

Connector Panel (EMC and NE interface)

BTSEET

EET

EET

SGSN

Gb over Frame Relay

EET

MSCTCSM3i

A

TCSM3i or TCSM2

TCSM3i or TCSM2

MSC

A

Ater

IP



The most important functional units of Flexi BSC are:

• Group switch (GSW2KB-A) - switches speech and data, and connects signalling circuits. The maximum size of a GSW2KB-A is 2048 x 2M PCMs.

• Base station controller signalling unit (BCSU) - handles the BSC signalling functions. The optional packet control unit (PCU) is included in BCSUs, when GPRS service is implemented. It implements the GPRS packet control functions in the BSC.

• Marker and cellular management unit (MCMU) - controls and supervises the GSW2KB-A and acts as a BSC SYM (system maintenance) unit in case of OMU failure.

• Operation and maintenance unit (OMU) - serves as an interface between the user and the BSC, but also works as a SYM unit of BSC and automatically supervises the BSC.

• Ethernet message bus (EMB) - interconnects the functional units of BSC. EMB consists of a protecting L2 LAN switch and LAN cables from the CPU units.

• Exchange terminals (ET) - connect E1 or T1 transmission systems to the GSW2KB-A.

• SDH/SONET exchange terminals (SET) - connect synchronous digital hierarchy network to the GSW2KB-A. Four SETs (two transmission protected SET pairs) are located on one ETS2 plug-in unit (that is, STMU functional unit in software).

• Ethernet exchange terminal (EET) - represents functional unit of a physical GigE Ethernet interface, a port in the front panel of ETIP1-A plug-in unit. EET connects PW traffic to the GSW2KB-A. Two EETs (one transmission protected EET pair) are located onone ETIP1-A plug-in unit (that is, ETIP functional unit in software).

• Clock and synchronisation Unit (CLS) - generates the clock signals for the BSC.

• Internal LAN switch for PCU LAN and Internal LAN switch for CPU LAN - to which LAN interfaces from the packet control units (PCU) and LAN interfaces from the CPUs of BCSUs are connected.

• Transcoder submultiplexer (TCSM) - is a functional unit of Flexi BSC but is located in a separate network element (new generation TCSM3i or old generation TCSM2) . Transcoder submultiplexer is usually installed on MSC site (for further information,see TCSM user documentation). TCSM3i can also be attached to Flexi BSC in the TCSM3i for combined BSC/TCSM installation option.

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Flexi BSC ArchitectureCabinet Configuration (1/2)

• Cabinet mechanics (M98)

• Power Distribution & Fuses (PDFU-B)

• New Bit Group Switch (GSW2KB-A)

• Marker and Cellular Cooling system (MCMU)

• BSC Signalling Unit (BCSU)

• Operation and Maintenance Unit (OMU)

• LAN cartridge including LAN Switching Unit (LANU)

• Clock and Synchronization Unit (CLS)

• Exchange Terminal (ET)

• SDH/SONET Exchange Terminal (SET)

• Ethernet Exchange Terminal (EET)

• Transport can be located in :

- GTIC : ET and/or SET and/or EET

- ETC :ET

MC

MU

M

CM

U

11 OMUOMU

Flexi BSC cabinet Flexi BSC cabinet

MC

MU

M

CM

U

00BCSU BCSU 00

2000 x 900 x 600 cabinet (HxWxD)

BCSU BCSU 11

BCSU BCSU 33

BCSU BCSU 55L

AN

U

LA

NU

00

BCSU BCSU 22

BCSU BCSU 44

BCSU BCSU 66L

AN

U

LA

NU

11

GTIC GTIC 11

GSWB GSWB 11

ETC ETC 22

ETC ETC 33

CL

S 1

CL

S 1

GTIC GTIC 00

GSWB GSWB 00

ETC ETC 00

ETC ETC 11

CL

S 0

CL

S 0

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Flexi BSC ArchitectureCabinet Configuration (2/2)

PDFU-A

GSW2KB 0

GTIC 0

GSW2KB 1

GTIC 1

ETC 0

ETC 2

ETC 1

ETC 3

CL

S 0

C

LS

1

BCSU 0

BCSU 1

LA

NU

0

BCSU 3

BCSU 5

BCSU 2

LA

NU

0

BCSU 4

BCSU 6

MCMU 0

MCMU 1

OMU

0

1

2

3

4

5

0 6

0 3 6 9

0 3 6 9

0 4 6 8

0 4 6 9

0 4 6 9

BSCC

PDFU-APDFU 0PDFU-B

PDFU 1PDFU-B

FTRB 0 (FTRB-A) FTRB 1 (FTRB-A)

GSW2KB 0

GTIC 0

GSW2KB 1

GTIC 1

ETC 0

ETC 2

ETC 1

ETC 3

CL

S 0

C

LS

1

BCSU 0

BCSU 1

LA

NU

0

BCSU 3

BCSU 5

BCSU 2

LA

NU

0BCSU

4BCSU

6


MCMU 0

MCMU 1

OMU

CPETx CPRJ45-ACPGO / CPETx

0

1

2

3

4

5

0 6

0 3 6 9

0 3 6 9

0 4 6 8

0 4 6 9

0 4 6 9

BSCC

SGC1C-A

SGC1C-A

CC3C-B CC3C-ADC3C-B

BC1C-B

BC1C-B

CARTRIDGE TYPE UNIT TYPE

CPETx CPRJ45-ACPGO / CPETx

FRONT VIEW FRONT VIEW

BSCCIn Flexi BSC S14 first deliveries, the cartridges come in two sizes:

• 1/1-shelf cartridge, comprising types:

- SGC1C-A (GSW2KB-A 0-1, GTIC 0-1, ETC 0-3, CLS 0-1)

- BC1C-B (BCSU 1-6, LANU 0-1)

• 1/3-shelf cartridge, comprising types:

- CC3C-B BCSU 0

- DC3C-B MCMU 0-1

- CC3C-A OMU

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Flexi BSC ArchitectureFlexi BSC capacity step

#TRX per BSC (*1)

#active BCSU

max #BTS / #BCF

max #logical PCU2-E

max #PS Abis chan@16

max #RTSL

max #SS7 links:64 kbps128 kbps256 kbps512 kbps1024 kbpsHSL

max #LAPD (*2)

#PCM (*3):ET16(*4)SET (*5)ETIP(*5)

1…500

1

500

5

5120

4000

842212

992

8001612

501…1000

2

1000

10

10240

8000

1684424

1984

8001612

1001…1500

3

1500

15

15360

12000

16126636

2976

8001612

1501…2000

4

2000

20

20480

16000

16168848

3968

8001612

2001…2500

5

2500

25

25600

20000

16161010510

4960

8001612

2501…3000

6

3000

30

30720

24000

16161212612

5952

8001612

(*1): Software is scalable in 1 TRX steps with licence key. (*2): #LAPD links achievable with “low capacity” SS7 links. Therefore in 3000 TRX conf. SS7 over IP (SIGTRAN) should be used to avoid lack of LAPD links. (*3): #controllable PCM lines does not depend on #BCSU (*4): above 48 requires a cabling cabinet(*5): Active interfaces. Doubled for redundancy: 16 + 16 (SET) or 12 + 12 (ETIP).

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Flexi BSC Hardware and Functionality

Instructional Notes

•The emphasizes for Flexi BSC are:

•Hardware changes/modification of Flexi BSC from the previous BSC3i 1000/2000 version, including: cabinet enhancement for 2000 capacity solution, cabinet configuration, new PIUs, Message Bus.

•Detail explanation about the new Plug in Unit functionality.

•Detail explanation of new interface for SDH/SONET connectivity and ETIP

•Ethernet based Message Bus comparison with message bus, especially for addressing and structure in BSC.

•HW and SW compatibility for BSC3i 1000/2000 and interworking/compatibility issue

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Flexi BSC Hardware and FunctionalityHardware Changes compare to BSC3i 1000/2000

New Plug In Unit:

• ETIP1-A for EET interface

• PCU2-E for Packet data

• PSC6-D for power supply in each

• ESB24-A for ethernet switch

• SWPRO-C for controlling GSWB

Common Unit:

• FTRB-A enhanced fan units

• CP816-A CPU for all computerunits

• Bit based group switch for 2048 PCMs (GSW2KB)

• ET16 for E1/T1 interface

• ETS2 for STM-1 or OC-3 interface

• DCAR-A for mass memory

• LANU

• Ethernet Message Bus (EMB)

MC

MU

M

CM

U

11 OMUOMU

Flexi BSC cabinet Flexi BSC cabinet M

CM

U

MC

MU

00BCSU BCSU

00


BCSU BCSU 11

BCSU BCSU 33

BCSU BCSU 55L

AN

U

LA

NU

00

BCSU BCSU 22

BCSU BCSU 44

BCSU BCSU 66L

AN

U

LA

NU

11

GTIC GTIC 11

GSWB GSWB 11

ETC ETC 22

ETC ETC 33

CL

S

1C

LS

1

GTIC GTIC 00

GSWB GSWB 00

ETC ETC 00

ETC ETC 11

CL

S

0C

LS

0

Removed Units:

• ESB26 Ethernet Switch

• CLAB for clock repeating

Architecture changes

• 6 + 1 BCSU units

• No extension cabinet

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Flexi BSC Hardware and FunctionalityComputer Units (1/4)

MCMUMCMU

BCSUBCSU

OMUOMU

MC

MU

MC

MU

OMUOMU

BCSUBCSUBCSUBCSU BCSUBCSU



In the Flexi BSC, the call control functions are executed by micro-computers, called

Call Control Computers

MC

MU

MC

MU

BCSUBCSU


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Flexi BSC Hardware and FunctionalityComputer Units – MCMU (Marker and Cellular Management Unit) (2/4)

• The Marker and Cellular Management Unit (MCMU) controls and supervises the Bit Group Switch and performs the hunting, connecting and releasing of the switching network circuits.

• The cellular management functions of the MCMU are responsible for cells and radio channels that are controlled by the BSC. The MCMU reserves and keeps track of the radio resources requested by the MSC and the handover procedures of the BSC.

• MCMU also manages the configuration of the cellular network.

• Redundancy 2N

MCMUMCMU

Plug-in units

• CP816-AC

• SWPRO-C

• ESB24-A

• PSC6-AB

MC

MU

MC

MU

MC

MU

MC

MU

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• The BSC Signalling Unit (BCSU) performs those BSC functions that are highly dependent on the volume of traffic.

• Consists of two parts, which correspond to the A and Abis interfaces

• Packet Control Units (PCUs) are housed in the same cartridge.

• The A interface part of the BCSU is responsible for performing all message handling and processing functions of the signalling channels connected to it

• Performing the distributed functions of the Message Transfer Part (MTP) and the SignallingConnection Control Part (SCCP) of SS7

• Controlling the mobile and base station signalling(Base Station Subsystem Application Part, BSSAP)

• The Abis interface part of the BCSU controls the air interface channels associated with transceivers (TRXs) and Abis signallingchannels.

• The handover and power control algorithms reside in this functional unit.

• Redundancy N + 1

BCSUBCSU

Plug-in units

• CP816-AC

• AS7-D

• PCU2-E

• PSC6-D



Flexi BSC Hardware and FunctionalityComputer Units – BCSU (BSC SIgnalling Unit) (3/4)

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Flexi BSC Hardware and FunctionalityComputer Units – OMU (Operation and Maintenance Unit) (4/4)

• OMU is an interface between the BSC and a higher-level network management system and/or the user. The OMU receives fault indications. It can produce local alarm printouts to the user or send the fault indications to NetAct

• In a fault situation, the OMU automatically activates appropriate recovery and diagnostics procedures. Recovery can also be activated by the MCMU if the OMU is lost.

• The OMU consists of microcomputers and contains I/O interfaces for local operation.

• The tasks of the OMU can be divided into five groups:

• traffic measurement functions

• maintenance functions

• system configuration administration functions

• system management functions

• LAN topology management

OMUOMU

OMUOMUPlug-in units

•CP816-AC

•AS7-D

•HWAT-B

•SERO-B

•PSC6-AB

Mass memory adapter:

• DCAR1-A

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Flexi BSC Hardware and FunctionalityOther Units (1/8)

LANULANU

GSW2KBGSW2KB

GTICGTIC

CLOCCLOC ETCETC

ET

CE

TC

ET

CE

TC

LA

NU

LA

NU

LA

NU

LA

NU

GT

ICG

TIC

GS

WB

GS

WB

CL

OC

CL

OC

ET

CE

TC

ET

CE

TC

GT

ICG

TIC

GS

WB

GS

WB

CL

OC

CL

OC

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Flexi BSC Hardware and FunctionalityOther Units – GSW2KB-A (Group Switch) (2/8)

• Conveys the traffic passing through the BSC

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

• 8Mbit/s serial connections towards ET16 via back panel

• 2 HotLinks / SW256 towards ETS2 / ETIP via front panel

• Is responsible for the submultiplexingfunctions of the BSC

• Characteristic of GSW2KB-A:• 2048 real PCM’s

• 16384 virtual PCM’s

• Switching on 8kbit/s level

• Max. 65536 8kbit/s channels for one SW256B

• 8 x SW256B Units

Configuration includes 8 x SW256B plug-in units

The duplicated Group Switch (GSWB) 256 is the switching fabric of the BSC3i. The GSWB is housed in two identical SW1C-C cartridges, and it conveys the traffic passing through the BSC3i and switches the tones to the subscribers of the exchange and to the trunk circuits. It also establishes the needed connections to the signalling units and the internal data transmission channels, and is responsible for the submultiplexing functions of the BSC3i.

The operation of the GSWB is controlled and supervised by the Marker and Cellular Management Unit (MCMU; SWCOP-A).

Redundancy: 2n with MCMU

Type: Functional unit, sub-unit of the Marker and Cellular Management Unit

Plug-in units:

• SW64B Switching Network (8 Bit/s channels)

• PSC1-S Power Supply for Cartridge

The dimensions of an SW1C-C cartridge are (height x width): 270 mm x 198 mm

The dimensions of the plug-in units are (height x width): 233.4 mm x 220 mm; or

9.19 in x 8.66 in.

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Flexi BSC Hardware and FunctionalityOther Units – CLS (Clock unit) (3/8)

• Clock and Tone Generator• (CL3TG-UA) plug-in units

• Allows external synchronization input via connector panel

• Housed in the SGC1C-A cartridge

2 x CL3TG units(2N redundancy)

The CLS generates the clock signals necessary for the BSC. The oscillator of the CLS is normally synchronized to an external source, usually an MSC, through a PCM line. Up to three additional PCM inputs are provided for redundancy.

Plug-in Unit: CL3TG (Clock and Tone Generator)

Interfaces:

- Synchronization input from Transcoder

- External synchronization input

- Synchronization output

- Wired alarm interface to OMU via GSWB

The Clock&Tone Generator (CL3TG) plug-in unit meets the requirements of the ITU-T Q.500 Series Recommendation with respect to the Time Interval Error (TIE), the jitter, the wander, and the transfer function. In the plesiochronous operation mode, the frequency shift of the CL3TG is 5 * 10-9 within each 24-hour period, if the temperature of the environment does not vary. CL3TG with external synchronised input is available by using the external synchronisation input connector from the CPRJ45 panel. It can be implemented either by symmetrical or asymmetrical PCM connection (RJ45 or BNC connector).

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Flexi BSC Hardware and FunctionalityOther Units – SET Unit (5/8)

• Provides the external SDH / Sonet line connections for BSC

• Each ETS2 plug-in units contain two separate STM-1 / OC-3 interfaces

• Flexi BSC includes in maximum 2 x 8 ETS2 units providing 16 external interfaces (STM-1/OC-3)

• ETIP1-A/ET16 units can be equipped to the same cartridge alternatively

0 - 16 x ETS2 units0 - 16 x ETIP1-A units0 - 16 x ET16 units

The ETs are housed in ET4C-B cartridges. One ET4C-B cartridge can contain up to 32 ET2E-S, ET2E-SC or ET2A plug-in units. The total number of ET plug-in units in the BSC3i is 62 (32 in ET4C0, 30 in ET4C1) and the total number of PCMs is 124.

The ET2 plug-in units are installed in the order presented in the Equipment list in the site documents. The ET2E plug-in unit connects BSC to a 2.048 Mbit/s PCM transmission system. The ET2E is equipped with two PCM circuit interfaces (2x2M).

Different connector types used in ET2-units are following:

• ET2E-S Exchange Terminal with Euroconnector (balanced E1interface, 120 ohm) in ETSI environment

• ET2E-SC Exchange Terminal with coaxial connectors (unbalanced E1 interface, 75 ohm) in ETSI environment

• ET2A Exchange Terminal with RJ-45 connectors (balanced T1 interface) in ANSI environment

The dimensions of a ET4C cartridges are (height x width): 270 mm x 360 mm

The dimensions of the ET2 plug-in units are (height x depth): 100 mm x 220 mm; or 3.94 x 8.66 in.

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

STM-1 = 63 x E1 PCM (ETSI)

OC-3 = 84 x T1 PCM (ANSI)

•STM-1/OC-3 optical interfaces with bit rate of 155,52 Mbit/s *

•2 separate interfaces per unit

+ Optical interface redundancy

•Up to 16 ETS2 units in BSC3i 1000/2000

•Max. 16 STM-1/OC-3 interfaces

•Connected to GSW2KB via Hotlink


Flexi BSC Hardware and FunctionalityOther Units – EET Unit (6/8)

• Provides the external GigE Ethernet line connections for BSC

• Each ETIP1-A plug-in units contain one IP interfaces

• Flexi BSC includes in maximum 2 x 8 ETIP1-A units providing 8 redundant external interfaces (GigE)

• ETS2/ET16 units can be equipped to the same cartridge alternatively

0 - 16 x ETS2 units0 - 16 x ETIP1-A units0 - 16 x ET16 units









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Flexi BSC Hardware and Functionality Other Units – ET Unit (7/8)

ETC 0-4GTIC 0-1

ETC 0-4 and GTIC 0-1• Provides the

external PCM line connections for BSC

• Each ET16 plug-in units contain 16 separate PCMs (E1/T1)

• Only one ET16 plug-in unit type

• Interface specific characteristics are changed with cabling and cabling panels

• Flexi BSC includes in maximum 50 ET16 units providing 800 external PCMs (E1/T1)









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Flexi BSC Hardware and Functionality Other Units – LANU Unit (8/8)

LANU- 0 & 1

• 2N redundant LANU unit in basic cabinet

• Contains 3 ESB24 units

• In ESB24 SW port numbering is as follows:

- Port 1, 2, 23 and 24 are LAN ports on the front plate.

- Port 3 to 22 are LAN ports on the back plane.









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Flexi BSC Hardware and FunctionalityExample cabling of ETS2 in GTIC

2 3 4 5 6 71 8 9

Tx/Rx Fail

TX 1 R RX

STM-1/OC -3

STM-1/OC -3

STM-1/OC -3

STM-1/OC -3

TX 1 M RX

TX 0 R RX

TX 0 M RX

OPR

SB 1 - 0

SB 1 - 1

SB 2 - 0

SB 2 - 1

Tx/Rx Fail

TX 1 R RX

STM-1/OC -3

STM-1/OC -3

STM-1/OC -3

STM-1/OC -3

TX 1 M RX

TX 0 R RX

TX 0 M RX

OPR

SB 1 - 0

SB 1 - 1

SB 2 - 0

SB 2 - 1

Tx/Rx Fail

TX 1 R RX

STM-1/OC -3

STM-1/OC -3

STM-1/OC -3

STM-1/OC -3

TX 1 M RX

TX 0 R RX

TX 0 M RX

OPR

SB 1 - 0

SB 1 - 1

SB 2 - 0

SB 2 - 1

Tx/Rx Fail

TX 1 R RX

STM -1/OC -3

STM -1/OC -3

STM -1/OC -3

STM -1/OC -3

TX 1 M RX

TX 0 R RX

TX 0 M RX

OPR

SB 1 - 0

SB 1 - 1

SB 2 - 0

SB 2 - 1

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

Hotlink cables from STM-1/OC-3 interfacesto GSW2KB 1

Hotlink cables from STM-1/OC-3 interfacesto GSW2KB 0

A. Hotlink cablings from GT4C-A slots 1...4

Note 1! If ET16 pius are equippedto GT4C-A cartridges (GTIC 0 & 1) instead of Hotlink cables, theseHotlink cables are fastened somewherefor not causing any harm

2 3 4 5 6 71 8 9

Tx/Rx Fail

TX 1 R RX

STM-1/OC -3

STM-1/OC -3

STM-1/OC -3

STM-1/OC -3

TX 1 M RX

TX 0 R RX

TX 0 M RX

OPR

SB 1 - 0

SB 1 - 1

SB 2 - 0

SB 2 - 1

Tx/Rx Fail

TX 1 R RX

STM-1/OC -3

STM-1/OC -3

STM-1/OC -3

STM-1/OC -3

TX 1 M RX

TX 0 R RX

TX 0 M RX

OPR

SB 1 - 0

SB 1 - 1

SB 2 - 0

SB 2 - 1

Tx/Rx Fail

TX 1 R RX

STM-1/OC -3

STM-1/OC -3

STM-1/OC -3

STM-1/OC -3

TX 1 M RX

TX 0 R RX

TX 0 M RX

OPR

SB 1 - 0

SB 1 - 1

SB 2 - 0

SB 2 - 1

Tx/Rx Fail

TX 1 R RX

STM -1/OC -3

STM-1/OC -3

STM-1/OC -3

STM-1/OC -3

TX 1 M RX

TX 0 R RX

TX 0 M RX

OPR

SB 1 - 0

SB 1 - 1

SB 2 - 0

SB 2 - 1

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

Note 2! In production theseHotlink cables can not beconnected on the PIU end, so they are fastened somewherefor not causing any harm and they will not get damaged

STM-1/OC-3 cables from STM-1/OC-3 interfacesto customer network viaCPGO panel. These cablesare not included in the BSCC-C cabinet type

Front side Front side

B. STM-1/OC-3 cablings from GT4C-A slots 1...4

SH

IM4

T

SH

IM4

T

SH

IM4

T

SH

IM4

T

SH

IM4

T

SH

IM4

T

SH

IM4

T

SH

IM4

T

SH

IM4

T

SH

IM4

T

This is default equipping alternative in Flexi BSC

Blue lines on left:

Hotlink cables from STM-1/OC-3 interfaces to GSW2KB 1

Orange lines on left:

Hotlink cables from STM-1/OC-3 interfaces to GSW2KB 0

Red lines on right:

STM-1/OC-3 cables from STM-1/OC-3 interfaces to network.

Orange lines on right:

STM-1/OC-3 cables from STM-1/OC-3 interfaces to network. Redundancy!

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Flexi BSC Hardware and Functionality PDH and SDH/Sonet and IP/Ethernet Connectivity

E1/T1STM-1/OC-3IP/Ethernet

STM-1/OC-3

E1/T1

160 16 + 16*or 8 + 8

16 + 16*

800

Mixed examples 1Flexible for Abis, Ater and Gbwith full HW redundant ETS2/ETIP1-A

SDH/Sonet Connectivity (max.)

PCM Connectivity (max.)

Interface type Flexi BSC

Note: * for redundancy

7046 + 6*

or 3 + 3

Mixed examples 2Flexible for Abis, Ater and Gbwith full HW redundant ETS2/ETIP1-A

E1/T1STM-1/OC-3IP/Ethernet

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

To the GTIC cartridges can be equipped either ETS2 units for STM-1/OC-3 interfaces or ET16 units for E1/T1 interface.

Both units can be equipped to the cartridges also at a same time. E.g. the example 2 in this slide means: there is 2 ETS2 units in both GTIC cartridges to achieve 8 STM-1/OC-3 interfaces and there must be 6 ET16 units in both cartridges to achieve the E1/T1 amounts. ETS2 units have occupied two slots in left and ET16 units have occupied the 6 slots from the right.

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Flexi BSC Hardware and FunctionalityDCAR1-A Plug in Unit

USB port in DCAR1-APIU• USB memory stick will provide

reliable means for backup copying SW and database on a transferable media in BSC

• Capacity of memory stick is 4 GB

HDSAM (contained HSD07) also in DCAR1-A PIU• Duplicated Hard disk units are

installed with carrier adapter per BSC to ensure high reliability

• Easy to change or upgrade without traffic interruption

• Capacity of HSD07 is 73 GB

LED indicator on DCAR1A :

green normal operation

red failure conditionHard disk AMC front panel

(HDSAM-A)

Red - out of Service

green – Power good

Blue – Hot Swap

amber – hard disk drve activity

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Flexi BSC Hardware and Functionality BSC3i Processing Unit CP816-A, Pentium III Central Processing Unit

• Mobile Pentium®III with approx. 1.6 GHz frequency

• 512 MB SDRAM

• Provides standard V.24/V.28 based Service Terminal interfaces in front panel

• The unit is connected to the back plane via CompactPCI bus, SCSI and Ethernet based Message bus

• one CPCI 33Mhz, 32 bits

• two Wide Ultra3 SCSI

• four 10/100/1000 Mbit/s Ethernet ports• For all computer units in BSC3i 1000/2000:

• OMU, MCMU and BCSU

The CP816-A with full performance can be used in M98F mechanics. With reduced performance the CP816-A can be used in M98N mechanics.

approx. 1.6GHz frequency acts as the central processing resource in the DX200 system computer units (actual processor speed is selected by SW according to the thermal operating enviroment 600MHz – 1.6GHz).

CP816-A supports standard external interfaces like Wide Ultra3 SCSI (backward compatible to current Ultra2) and four 10 Base-T /100 Base-TX / 1000 Base-T Ethernets. The unit is connected to the back plane CompactPCI bus. However, it can be used without the CompactPCI connection.

Two of the ethernet ports are used for EMB LANs and two other ethernet ports for the IP traffic LANs.

Since the two ethernet controllers are dual-port devices, the Ethernet Address (MAC address) found at word offset 0x00 – 0x02 will be assigned to LAN A. The Ethernet Address for LAN B is the Ethernet Address for LAN A + 1. Please make sure there aren't any (indirectly) doubled MAC addresses assigned!E.g. if MAC addr. of LAN A is 00:00:50:11:22:FF then the MAC addr. of LAN B is automatically 00:00:50:11:23:00. In other words 00:00:50:11:23:00 must not be assigned to other devices. E.g. for EMB.

The following settings are made with micro switches:

•Interchangeability code

•MBIF in use / not in use status

CP710-A CPU PIU (used in Bsc3i 660)in the computers had only two ethernet ports and can not be used when EMB is needed. -> BSC3i 1000/2000

EMB can only be used with the CP816-A CPU PIUs or later, which have four 1 Gbit Ethernet ports in the back plane.

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Flexi BSC Hardware and FunctionalityFlexi BSC PCU Solution

• Controls (E)GPRS radio resources and acts as the key unit in the following procedures

• (E)GPRS Radio resource allocation and management• (E)GPRS radio connection establishment and management• Data transfer• Coding scheme selection• PCU statistics

• Independent processing unit, embedded in BCSUs of BSC for redundancy purposes

• Takes advantage of BSCs O&M and overload protection mechanisms

• Provides flexible choices for transport method between BSC and SGSN

• IP and Frame Relay as transport alternatives for Gb – Interface

• In Flexi BSC, new PCU2-E is used• One PCU2-E piu consist of 1 logical PCU in which can handle

1024 channel @16 KBps Abis for PS traffic• Each BCSU can have up to 5 PCU2-E piu installed

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Flexi BSC Hardware and Functionality Flexi BSC PCULAN & CPULAN connection principle – Flexi BSC (1/2)

IP backbone IP backbone

BSC units BSC units

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Flexi BSC Hardware and Functionality Flexi PCULAN & CPULAN connection principle – BSC3i 2000 (1/2)

IP backbone IP backbone

BSC units BSC units

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Flexi BSC Hardware and Functionality Flexi EMB connection principle – Flexi BSC

• Switched LAN is used• LAN is 2N redundant• EMB LANs are

physically separate from the internal LAN • cabling & LAN-switches

used by the internal LAN have been excluded from the picture

• Each computer reads its EMB address from EMB address plug• EMB address has same

value as MB address

CP816-A with 4 LAN ports

- 2 used for redundant EMB

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Flexi BSC Hardware and Functionality FTRB-A (enhanced fan tray unit)

BOTTOM

TOP

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

FTRB-A

front plate of plug-in unit

• New fan tray unit FTRB-A is based on FTRB unit but there are five fans instead of three. FTRB-A has also temperature controlled rotation speed besides the full speed operation, which is controlled with wired alarms. More effective diagonal fans are also used and two additional fans enhance Plug-in unit front plate cooling.

• New additional fans come out of the cartridge shelf and finger guards are needed for safety reasons.

• FTRB-A units are compatible with both IC209-A and IC209-B cabinets. Only one fan tray type inside one cabinet is allowed.

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Flexi BSC Hardware and Functionality BSC peripheral options

Line Printer, LPT

A printer can be connected to the OMU. The interface complies with the ITU-T Recommendation V.24.

External Alarm Unit, EXAU

The alarm lamp panel shows the BSC HW alarms and it can be installed to a place where the observations of alarms can be noticed easily.

Visual Display unit, VDU

A visual display unit is used as a user interface at BSC site. By using a VDU terminal, the user can perform normal operational functions, using MML commands and diagnostic tests on various units.

The BSC3i network elements can be equipped with an alarm unit to make thealarm monitoring more efficient. The External Alarm Unit (EXAU) is a smalldevice controlled by the HWAT-A plug-in unit in the CM2C-A (OMU and massmemory) cartridge of the BSC3i cabinet. The EXAU indicates alarms from thenetwork element with indicator lights and a buzzer.EXAU is located in the control room of the sitel, and it is easy to install to allcommon wall materials. The dimensions and installation options of the EXAU are presented in the figure below.The alarm unit contains six indicator lights and three buttons: test button (Test), reset table buzzer button (Buzzer Reset) and abutton with which operation mode can be set (Silent Mode).

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Flexi BSC Hardware and Functionality BSC3i Cabling to environment

• Cabling to environment can easily be done with cable ladders or raised floor

• Cables are directed under raised floor via cabling cabinet or via side cabling conduit

• Optical STM-1/OC-3 cables are directed through the CPGO panel

• Trunk cables (E1/T1) are directed through CPET panels on the top of the cabinet and in the cabling cabinet

• CPRJ45A panel on top of the cabinet is used for• External synchronization

• Ethernet (LAN) uplinks

• Alarm cabling

Without optional cabling cabinet it is possible to use/cable only maximum of 48 ET interfaces (ET amount 1…48) via CPETS-E panel on the roof of the BSCC cabinet. When more than 48 ET interfaces are needed optional cabling cabinet must be equipped & used.

A cabling cabinet variant IC203-A is attached next to BSCC-C, if optional cabling cabinet is delivered. In raised floor deliveries, when optional cabling cabinet is selected/delivered (ET amount > 48), no side cable conduit SCC is equipped. But, when optional cabling cabinet is not delivered (no ET interfaces or ET amount 1…48), side cable conduit SCC is equipped in raised floor deliveries to the left-handed (BSC3i 1000 or BSC3i 2000) or right-handed side (BSC3i 1000) of BSCC-C cabinet.

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BSC3i 1000 & 2000 – Hardware and FunctionalityESB24 Ethernet Switch

• Used in Flexi BSC first delivery for EMB and IP LAN switching

• In front panel there are:– 4 SFP Ethernet ports (ETH1,2 & ETH23,24) 1000Base-T ports in Gigabit mode

– 1 MGT ports (RJ45) serial port for switch menagement

– 1 SER1 ports (RJ45) console connector used for initial configuration

• In back panel there are:– 20 Full-duplex 10/100/1000Base T/TX ethernet Ports

• ESB24 unit located in MCMU is used for EMB switching• Connects all CPU’s

• ESB24 units located in LANU are used for IP LAN Switching• Connects together all CPU’s and all PCU’s

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Flexi BSC Hardware and Functionality CPRJ45 – Roof cabling panel for LAN, LPT/VDU, and synchronisation and alarm interfaces

• The CPRJ45-A provides interfaces for:

– 100 Mbit/s and 1 Gbit/s LAN uplinks,

– LPTs and VDUs,

– incoming external synchronisationsignals, and

– inputs and outputs for external alarms.

• Both 1000Base-Sx LAN interfaces (ports 04 to 07, 12 to 15) for 1 Gbit/suplinks and 10/100/1000Base-T/Tx LAN interfaces (ports 00 to 03, 08 to 11) for 10/100 Mbit/s and 1 Gbit/scopper uplinks in CPRJ45-A panel are used.

28ASYMM 1

CLS 0, 1

EXT AL INPUT

LAN INTERFACES

B A

EXT SYNC IN

INTERFACES EXT AL INTERFACES

CL

AS

S 1

LA

SE

R P

RO

DU

CT

IEC

/EN

60

825

- 1

(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

Tx Rx

Tx Rx

Tx Rx

Tx Rx

Tx Rx

Tx Rx

Tx Rx

Tx Rx

06

14

07

15

VDU 2 LPT 2

LPT/VDU INTERFACES

VDU 1 VDU 2

20ASYMM 0

CLS 0, 1

22 23

CURRENT-CONTROLLEDAL INPUTS

04

12

05

13

1000Base-Sx uplinks10/100/1000Base-T/Tx uplinks

EXT AL OUTPUT

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Flexi BSC Hardware and Functionality CPET & CPGO – Roof cabling panel for ET and SET/EET

• The cabling panel with grounding outlets (CPGO) is installed at site at the BSCC cabinet top of the Flexi BSC.

• The CPGO is used for STM-1/OC-3 (SET) trunk cables and GigE Ethernet (EET) interface cables.

Optical LC connector

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Flexi BSC Hardware and FunctionalityCPET & CPGO – Roof cabling panel for ET and SET/EET

• The small CPETS-E connector panel and the large CPETS-F connector panels are used for E1/T1 (PCM) balanced trunk cables (with RJ45).

• The CPETS-E is installed at the BSCC cabinet top (one panel)

• Type CPETS:

• CPETS-E & CPETS-F(*) for balanced trunk cable panel with RJ45 connector 1 connector = 1 PCM

• CPETS-G & CPETS-H(*) for balanced trunk cable panel with RJ45 connector 1 connector = 2 PCMs

• CPETC-E & CPETC-F(*) for unbalanced trunk cable panel with D37 connector packs

Note :

* the panels are installed in optional cabling cabinet

CPETS-H

CPETS-GCPETS-E

CPETS-F

CPETC-E

CPETC-F

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Flexi BSC Hardware and Functionality Interworking and compatibility issues

• RG10 (BSS) Compatibility for individual NE releases• RG10 (BSS) consists of of the releases.

• BSC S14, Nokia UltraSite CX7.0, Nokia MetroSite CXM7.0, Flexi EDGE BTS EP3.0

• RG10 (BSS) is supported by following NE releases: • Nokia NetAct OSS5.1 CD Set 3, MSC M14.4, Nokia SGSN SG7.0

CD2.0

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TCSM3iArchitecture and FunctionalityRG10 (BSS)

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Module objectives


• Describe the architecture of TCSM3i

• Explain the functionality of the units in TCSM3i

• Explain the new Plug in Unit in TCSM3i

• Explain the capacity of TCSM3i

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Table of Content

• TCSM3i in Brief

• TCSM3i Architecture

• TCSM3i Hardware & Functionality

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TCSM3i in Brief

Instructional Notes

•The emphasizes for Introduction to TCSM3i are:

•The generation of TCSM3i, from the 1st

generation up to 3rd generation.

•The general characteristics that TCSM3i has, benefits, and capacity improvement compare to previous TCSM.

•General overview of cabinet configuration for TCSM3i and also alternative implementation with BSC3i (Combi BSC3i/TCSM3i)

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TCSM3i in BriefTCSM3i Support BSC

• Nokia TCSM3i is a third generation Transcoder and Submultiplexer providing transcoding for traffic channels in the GSM/EDGE networks.

• TCSM3i has over 12 times more capacity compared to current TCSM2

• Redesigned hardware makes it more compact

• TCSM3i cabined is based on M98 mechanic

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TCSM3i in BriefTCSM Evolution Path and Capacity

• Up to 960 ETSI / 768 ANSI Ch

• Extension Step 120 ETSI / 95 ANSI

• Added unique features for superior voice quality – such as Acoustic Echo Canceller and Noise Supression

Third generationThird generation

from 1995 from 2006

Second generationSecond generation

TCSM3iTCSM2E/A

First generationFirst generation

• Up to 450 ETSI Ch

• Extension Step 15 ETSI

from 1992

BB20382EA1

SMHW

LK2M

LK2M

LK2M

DB2M

DX2M

TRC15

TRC15

DB2M

DX2M

TRC15

TRC15

DB2M

DX2M

TRC15

TRC15

SM2M(or TRCU)

TRCU TRCU TRCU

BB20382EA1

SMHW

LK2M

LK2M

LK2M

DB2M

DX2M

TRC15

TRC15

DB2M

DX2M

TRC15

TRC15

DB2M

DX2M

TRC15

TRC15

SM2M(or TRCU)

TRCU TRCU TRCU

BB20382EA1

SMHW

LK2M

LK2M

LK2M

DB2M

DX2M

TRC15

TRC15

DB2M

DX2M

TRC15

TRC15

DB2M

DX2M

TRC15

TRC15

SM2M(or TRCU)

TRCU TRCU TRCU

BB20382EA1

SMHW

LK2M

LK2M

LK2M

DB2M

DX2M

TRC15

TRC15

DB2M

DX2M

TRC15

TRC15

DB2M

DX2M

TRC15

TRC15

SM2M(or TRCU)

TRCU TRCU TRCU

BB20382EA1

SMHW

LK2M

LK2M

LK2M

DB2M

DX2M

TRC15

TRC15

DB2M

DX2M

TRC15

TRC15

DB2M

DX2M

TRC15

TRC15

SM2M(or TRCU)

TRCU TRCU TRCU

TCSME• Up to 11520 ETSI / 9120 ANSI Ch

• Extension Step 960 ETSI / 760 ANSI

• All TCSM2 features available

• Added enhanced pool options

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TCSM3i in Brief Benefits

• TCSM3i has over 12 times more capacity compared to current TCSM2

• High capacity BSC3i_2000 allows up to 2000 TRX configuration• ~99TCSM units needed• ~12 TCSM2 cabinets• ~1 TCSM3i cabinet

• Redesigned hardware makes it more compact • Instead of several Plug-In Units one transcoder based on

TCSM3i HW technology consists from one Plug-In Unit.• TCSM3i cabined is based on M98 mechanic

• More flexible pool usage in A-interface• All-in-one circuit pools

• One TCSM3i functional unit can handle maximum four TC-PCM on A interface. (120 FR circuits)

• Introduces possibility to operator to “force” internal handover to external and thereby avoid DL muting. It also introduces load control on A interface to avoid overload situations.

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TCSM3i in BriefComparison TCSM2i and TCSM3i

• Same platform – DX 200 – as in use with Nokia GSM/EDGE BSC2i

• Mechanics: M92

• Capacity up to 960E/760A

• Capacity extension step 120E/95A

• Footprint 0.4 m2

• Power comsumption 0.6 kW

• Support for A-interface pools:

- Six different DSP SW versions

- The memory consumption of AMR codec modes cause the fact that TCSM2 can support simultaneously only AMR related codings (pool 23)

• Same platform – DX 200 – as in use with Nokia GSM/EDGE BSC3i

• Mechanics: M98

• Capacity up to 11520E/9120A *

• Capacity extension step 960E/760A *

• Footprint 0.72 m2

• Power comsumption 3.0 kW

• Support for A-interface pools:

- Only one DSP SW version

- New pools introduced: Pool 28&32

- All pools as with TCSM2 supported from day one, except Pool 2 HR only (Note! HR support is included in otherpools: 3, 7, 10, 13, 20, 21, 22, 28, 32)

*) In combined BSC3i/TCSM3i installation:11358 ch ETSI in steps of 960/933 ch11424 ch ANSI in steps of 952 ch

TCSM3i

TCSM2

Full capacity TCSM3i power consumption is 3.0 kW. Same capacity with 12xTCSM2 consumes 7.4 kW.

TCSM3i Power consumption 59% lower in comparison to same capacity build with TCSM2s.

Dimensions:

TCSM2 800x500x2020 mm

TCSM3i 1200x600x2000 mm

*) What causes the channel capacity difference in combi-installations

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TCSM3i in BriefTCSM3i capacity = TCSM2 capacity X 12

• TCSM3i provides high capacity up to 11520 (ETSI) / 9120 (ANSI) traffic channels from compact size

• TCSM3i has 12 times more capacity compared to current TCSM2

• All TCSM2 features available

• Added enhanced pool options

• Implementation is based on same high reliability platform as with Nokia GSM/EDGE BSC3i

The Nokia TCSM3i is a third generation Transcoder and Submultiplexer providing transcoding for up to 11520 traffic channels for ETSI standard and 9120 channels in ANSI standard.

All transdocer features of the 2nd generation transcoder are available and additionallyenhanced pool options are available.

TCSM3i has a 12 times higher capacity compared with the current TCSM2.

The new TCSM3i is be implemented with similar mechanics than the BSC3i and it can be used alongside within the same BSS.

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TCSM3i in BriefCombined BSC3i/TCSM3i Installation

BSC3i 1000BSC3i 1000

BSC3i 2000BSC3i 2000 TCSM3i TCSM3i

Transcoding Capacity

• 11358 ch ETSI

in steps of 960/933 ch

• 11424 ch ANSI

in steps of 952 ch

With an alternative configuration option called " BSC3i/TCSM3i installation“ the Transcodersubmultiplexer 3i will be installed alongside the BSC3i.

This installation model allows customer to use the optical interfaces towards A interface, means to connect the switching core network.

With this configuration BSC3i 1000/2000 and TCSM3i are installed together and the maintenance of optical connections is done by BSC.

The base transcoder submultiplexer 3i product is the same.

Optical connectivity is achieved by implementing a basic set of hardware and additional SDH/SONET Exchange Terminals.

The TCSM3i capacity is extended in steps of 960 channels in the first half of the transcodingcartridge and in steps of 933 channels in the second half. Maximum channel capacity is 11358 Full Rate or Half Rate channels in one cabinet.

Capacity steps in ANSI version are 952 channels and maximum channel capacity is 11424 Full Rate or Half Rate channels.

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TCSM3i in BriefCombined BSC3i/TCSM3i installation benefits

• optical STM-1/OC-3 interface towards core network

• TCSM3i installation on either side of BSC3i possible

• Simplified cabling with integrated STM-1/OC-3 interfaces


BSC3i 2000BSC3i 2000 TCSM3i TCSM3i Savings in transmission and site costs• No need for Cabling Cabinets in either

BSC3i or TCSM3i

• No need for external transmission elements (E1/T1 – SDH converters, DDFs)

The Benefits of this combined BSC3i/TCSM3i installation ensures optical STM-1/OC-3 interface towards core network.

The TCSM3i can be installed on either side of the BSC3i 1000/2000.

An other benefit is the simplified cabling with integrated STM-1/OC-3 interfaces. This means that there is no need for transmission plug-in units for Ater connections because the AterInterface is done with backbone cabling within the two racks.

Customer do not have invest into external transmission equipment and cable cabinets what is a cost saving factor for the transmission.

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TCSM3i Architecture

Instructional Notes

•The emphasizes for TCSM3i – Architecture are:

•Architecture of TCSM3i for standalone and combination solution implementation

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TCSM3i ArchitectureTCSM3i for standalone installation with ET interfaces

ET

ET

ET

ET

MSC

BSC3i

E1/T1

E1/T1

Ater A

E1/T1

TCSM3i Equipment

Combined BSC3i/TCSM3i installation

E1/T1

E1/T1

E1/T1

CLS

TR3E/A UNIT

TR3E/A UNIT

ET

ET

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TCSM3i ArchitectureCombined BSC3i/TCSM3i installation with STM-1/OC-3 interfaces

SBMUX UNIT

CLAB

SBMUX UNIT

SBMUX UNITSBMUX

UNIT

SET

SET

SET

SET

SET

SET

TR3E UNIT

TR3E UNIT

TR3E UNIT

TR3E UNIT

TR3E UNIT

TR3E UNIT

MSC

BSC3i

GS

W2K

BG

SW

2KB

CLS

CLAB

Int. PCM

Int. PCM

Int. PCM

Int. PCM

Timing

Supervision

Ater

AterA

AterA

AterA

A

STM-1/ OC-3

STM-1/ OC-3

STM-1/ OC-3

STM-1/ OC-3

STM-1/ OC-3

STM-1/ OC-3

TCSM3i Equipment

Combined BSC3i/TCSM3i installationSynchronization

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TCSM3i Hardware and Functionality

Instructional Notes

•The emphasizes for TCSM3i Hardware and Functionality are:

•Hardware changes/modification of TCSM3i from the previous version, including: cabinet configuration and new PIUs.

•Detail explanation about the new Plug in Unit functionality.

•Detail explanation of new interface for STM-1/SONET connectivity.

•TCSM3i Solution architecture and codec supported

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TCSM3i – Hardware and FunctionalityTCSM3i support in BSC - CombiSite

• Optical (STM-1/OC-3) interfaces can be introduced towards A-interface with an alternative TCSM3i configuration option called "Nokia TCSM3i for combined BSC3i/TCSM3i installation".

• With this configuration BSC3i 1000/2000 and TCSM3i is installed together and maintenance of optical connections is done by BSC. The base TCSM3i product is the same. Optical connectivity is achieved by ordering a basic set of hardware and additional SDH/SONET Exchange Terminals.

• In combined BSC3i/TCSM3i installation the same TCSM3i cabinet mechanics is used. Transcoding plug-in units are common with TCSM3i ETSI and same TR3E does the transcoding and submultiplexing for both ETSI and ANSI versions. In fact, the ETSI and ANSI hardware is exactly the same.

• In combined BSC3i/TCSM3i installation TCSM3i capacity is extended in steps of 960 channels in the first half of the transcoding cartridge and in steps of 933 channels in the second half. Maximum channel capacity is 11358 Full Rate or Half Rate channels in one cabinet. Capacity steps in ANSI version are 952 channels and maximum channel capacity is 11424 Full Rate or Half Rate channels.

• CLOC -> CLAC

Combined BSC3i/TCSM3i installation requires changing CLS unit hardware from clock&synch. generators to repeaters, adding multiplexing and SDH/SONET Exchange Terminal plug-in units and additional cabling between BSC3i and TCSM3i:

• CLS – CLAB provides system clock to other units. CLOC cartridge is replaced with CLAC

• SBMUX – SBMUX multiplexes 8 mbit/s internal PCMs from transcoding cartridges to hotlink in ETS2 Optical interface plug-in unit

• SET – SDH/SONET Exchange Terminal ETS2 provides 2 STM-1/OC-3 connections to A-interface

• Cabling - Ater connections are cabled with internal 8 mbit/s PCMs to BSC3i Group Switch

No ET16, CL3TG units or cabling cabinet needed in Nokia TCSM3i for combined BSC3i/TCSM3i installation

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TCSM3i – Hardware and FunctionalitySTM-1/OC-3 in TCSM3i


Benefits

• Optical A-inf. towards core network •• BSC controlled STMBSC controlled STM--1/OC1/OC--33

• Ater interface connected to BSC3i Group Switch

•• No transmission plugNo transmission plug--in units between BSC3i in units between BSC3i and TCSM3i neededand TCSM3i needed

• No cabling cabinet required for BSC3i or TCSM3i

•• LC type LC type fibrefibre connections via cabinet top connections via cabinet top

cabling panelcabling panel

• TCSM3i power consumption reduction/channel

•• 2.8 kW with optical connections vs. 3.0 kW 2.8 kW with optical connections vs. 3.0 kW

with E1/T1 (7%)with E1/T1 (7%)

TCSM3i combined together with BSC3i 1000/2000

BSC3i 2000BSC3i 2000 TCSM3i TCSM3i

instead of ET16s, optical SETinstead of ET16s, optical SETunits are used in Aunits are used in A--interface interface

Optical LC connector

AterAter ET16 units not ET16 units not needed in TC cartridgesneeded in TC cartridges

PanelPanel

NOTE:NOTE: TCSM3i cabinet can be located TCSM3i cabinet can be located also on the left side of BSC3i 1000/2000also on the left side of BSC3i 1000/2000

Benefits

Combined BSC3i/TCSM3i installation ensures optical STM-1/OC-3 interface towards core network

TCSM3i can be installed on either side of the BSC3i 1000/2000 configurations

Simplified cabling with integrated STM-1/OC-3 interfaces

No need for transmission plug-in units for Ater connections

Fast A-interface installation with optical connections

Clear savings in transmission and site costs

No need for Cabling Cabinets in either BSC3i or TCSM3i

No need for external transmission elements (E1/T1 – SDH converters, DDFs)

Power consumption reduction/channel

Transcoding Capacity

11358 ch ETSI in steps of 960/933 ch

11424 ch ANSI in steps of 952 ch

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TCSM3i – Hardware and FunctionalityCartridges

CLOC cartridgeCLOC cartridge• 2 Clock and Tone Generator (CL3TG)

plug-in units

3 ETC cartridges3 ETC cartridges• 8 A-interface Exchange Terminal

(ET16) plug-in units• Same unit for ETSI/ANSI• 16 back-mounted E1/T1 connections• External connections by RJ45 plugs

6 TC2C cartridges6 TC2C cartridges• 16 Transcoding plug-in units

• TR3E for ETSI 120 ch• TR3A for ANSI 95 ch

• 1 or 2 Ater interface ET16 plug-in units

CLOC

ETC

TC2C

Two Ater ET16 piu’s in TC2C cartridge in case the cartridge is divided into two transcodingunits connected to different BSC. See next slide for transcoding unit explanation.

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TCSM3i – Hardware and FunctionalityTCSM3i Capacity steps

CapacityCapacity• 11520 / 9120 Ch per cabinet

• In steps of 960/760 Ch

ConfigurationConfiguration• Transcoding Units

• Exchange Terminal Units A-interface

• Exchange Terminal Units Ater-interface

• Modular extension of capacity with smooth upgrade path

1

2

3

4

5

6

7

8

9

10

11

12

TentativeTentative

1 2 3 4

5 6 7 8

9 10 11 12

1 3

5 7

9 11

One transcoding unit can handle the capacity of on fully equipped TCSM2!

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TCSM3i – Hardware and FunctionalityTCSM3i Cabinet Configuration

• Total 96 TR3E/As

• 16 TR3E/A per cartridgePDFU-A

PDFU 0PDFU-B

CL

OC

CLO

C-B

PDFU 1

TCSA

PDFU-B



Air Guide

TC2C 4TC2C-A

ETC 1GT4C-A

ETC 2GT4C-A

TC2C 5TC2C-A

TC2C 2TC2C-A

TC2C 3TC2C-A

TC2C 0TC2C-A

TC2C 1TC2C-A

ETC 0GT4C-A

CPETS-E

CPETS-E

CPETS-E

CPETS-E

CPETS-E

CPETS-E

CPETS-E

CPETS-E

CPBP

CPETS-E

CPETS-E

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

TR

3E

OPR

TR

3E

OPR

TR

3E

OPR

TR

3E

OPR

TR

3E

OPR

TR

3E

OPR

TR

3E

OPR

TR

3E

OPR

TR

3E

OPR

TR

3E

OPR

TR

3E

OPR

TR

3E

OPR

TR

3E

OPR

TR

3E

OPR

TR

3E

OPR

TR

3E

OPR

ET

16

SH

IM4T

SH

IM4T

17 18 19

TR3E implements speech coding for max. 120 Full Rate ETSIchannels.TR3A implements speech coding for max. 120 Full Rate ANSIIchannels.

In BSC HW database one TCSM functional unit based on TCSM3 HW consist of 1xTR3A/E and 5xET16 interfaces(4 in Aif and 1 in Ater)

When head master TR3E/A is taken into use user must equip the clock (CT3LG-S) also.

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TCSM3i – Hardware and FunctionalityTCSM3i - Solution Implementation

• Cabinet clock • Clock and synchronization unit for TCSM3i cabinet

• Head master TR3E/A• Cabinet clock supervision

• Cartridge master TR3E/A • A&Ater interface ET16E/A supervision

• Master TR3E/A • A interface ET16E/A supervision

• Four TR3E/A’s act as masters in one TC2C-A cartridge:• O&M for the A interface ET16s

• first TR3E/A handles O&M for the A&Ater interface’s ET16 (cartridge master)

• Second TR3E/A in the first TC2C-A cartridge acts as a “head master” for the whole cabinet:

• O&M for CL3TG-S

Head master TR3E/A:In TCSM3 cabinet the second (index-1)TR3E/A PIU from first cartridge (index-0) handles cabinet clock supervision

Cartridge master TR3E/A:In every cartridge there is one TRE3E/A PIU which handles Ater ET16E/A supervision (index-1)

Master TR3E/A:In every cartridge there is four TR3E/A PIU which handles A interface ET16E/A supervision (index-0, index-4, index-8, index-12)

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TCSM3i – Hardware and FunctionalityTCSM3i - Solution Architecture

A-interfaceAter-interface

A/Ater ET-supervision

TCSM3i cabinet

4x PCM/TR3

Index 15

ET16

BSC- 1

.

.

.

Cabinet clock-supervision

ET16

Cartridge in TCSM3 cabinet

ET 16

ET 16

A-int. ET- supervision

TR3

TR3

TR3

TR3

TR3

. . .TR3

TR3

TR3

TR3

TR3

. . .

1 BSC / 1 TCSM3i cartridge

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TCSM3i – Hardware and FunctionalityTCSM3i - Solution Architecture

A-interfaceAter-interface


TCSM3i cabinet

4x PCM/TR3

Index 15

ET16

BSC-1

ET16

ET 16

ET 16

A-int. ET- supervision

TR3

TR3

TR3

TR3

TR3

. . .TR3

TR3

TR3

TR3

TR3

BSC-2

ET16

ET16

TR3


. . .

2 BSC / 1 TCSM3i cartridge

Ater supervision belongs to the cartridge master (index-1).

Not to the master TR3 (index 0, 4, 8, 12)

Master TR3 supervises its Aif ET16 and next three TR3 that are connected to the same ET16 -> Aif supervision.

Second TR3(index-1) in each cartridge is a Catridge Master

CM in first cartridge acts also as Cabinet Master and handles Clock and synch.

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TCSM3i – Hardware and FunctionalityTCSM3i – Supported Codecs and Features

TCSM3i software

Supported codecs and features

Supported A-interface pools Type in TCSM3i

1 (FR)

3 (DR)

5 (EFR&FR)

7 (EFR&DR)

20 (EFR&DR&D144)

23 (AMR)

28 (EFR&DR&AMR&D144)

10 (HS2)

21 (HS2&D144)

13 (HS4)

22 (HS4&D144)

32 (EFR&DR&AMR&HS4&D144)

T55_PXMX FR, HR, EFR, AMR, AEC, TFO, NS, 14.4D, HSCSD, TTY

G

H

I

•• NEW AllNEW All--inin--one Circuit Poolsone Circuit Pools

•• TCSM3i does not support pool2 (8Kbit/s TCSM3i does not support pool2 (8Kbit/s submultiplexingsubmultiplexing))

FR = Full RateFR = Full RateHR = Half RateHR = Half RateDR = Dual RateDR = Dual RateEFR = Enhanced Full RateEFR = Enhanced Full RateAMR = Adaptive AMR = Adaptive MultirateMultirate

D144 = 14.4 D144 = 14.4 kbit/skbit/s data ratedata rateHSCSD = High Speed Circuit Switched DataHSCSD = High Speed Circuit Switched DataHS2 = HSCSD max 2xFR dataHS2 = HSCSD max 2xFR dataHS2 = HSCSD max 2xFR dataHS2 = HSCSD max 2xFR dataTTY = Text TelephonyTTY = Text Telephony

AEC = Acoustic Echo CancellationAEC = Acoustic Echo CancellationNS = Noise SuppressionNS = Noise SuppressionTFO = Tandem Free OperationTFO = Tandem Free Operation

TCSM2 software

Supported codecs and features

Supported A-interface pools

Type in TCSM2

3 (DR)

7 (EFR&DR)

20 (EFR&DR&D144)

10 (HS2)

21 (HS2&D144)

13 (HS4)

22 (HS4&D144)

1 (FR) A

5 (EFR&FR) A

TD2_PXMX HR, AEC, TFO, NS 2 (HR) B

TD3_PXMX AMR, AEC, NS 23 (AMR) F

3 (DR)

7 (EFR&DR)

20 (EFR&DR&D144)

10 (HS2)

21 (HS2&D144)

13 (HS4)

22 (HS4&D144)

1 (FR) A

5 (EFR&FR) A

TD6_PXMX AMR, AEC, TTY 23 (AMR) F

C

D

E

TD5_PXMX FR, EFR, AEC, TFO, TTY, 14.4D

TD1_PXMX FR, EFR, AEC, TFO, NS, 14.4D

TD4_PXMX FR, HR, EFR, AEC, 14.4D, HSCSD, TTY

TDL_PXMX FR, HR, EFR, AEC, NS, 14.4D, HSCSD

C

D

E

03 flexi bsc architecture and functionality

Documents

architecture of flexi

flexi bsc bsc3i

functionalityflexi bsc

generation of nokia

architecture of tcsm3i

bsc sw level s14flexi

capacity improvement

trx s6with