82043574 BSC6900 Presentation

04/11/2023 Prepared by Mohyedeen Alkousy 1

Huawei BSC6900A closer look at the new BSC6900 R11 & R13

1. Hardware Description of BSC6900R11 & BSC6900R13.

2. Technical Description of BSC6900 vs BSC6000.

3. Web-Based Local Maintenance Terminal (LMT).

4. Important Features introduced in BSC6900.

5. Main Parameters changes in BSC6900.

6. Counters and KPIs introduced in BSC6900.

topics under discussion

Prepared by Mohyedeen Alkousy04/11/2023 2

1.Hardware Description of BSC6900 :

• BSC6900 evolution path.

• BSC6900 subracks types.

• BSC6900 subrack configuration modes.

• Boards Types

• BSc6900 board Configurations modes.

• Boards development track.




BSC6900 evolution path

BSC6900 R13 GUBSC6900 R13 GSM

BSC6900 R11 GSM

BSC6000 R8

GSM

BSC6810 R11

BSC6900 R11 3G

BSC6900 R13 3G

UMTS

BSC6900 R11 GU

GSM & UMTS

BSC6000 can be upgraded to BSC6900 by software change only , but hardware change is also required if we want to increase the hardware capability and to

support new feature.

BSC6900 Subrack Types


MPS Subrack

TCS Subrack

EPSSubrack

The MPS performs centralized switching and provides traffic paths for other subracks. It also provides the service processing interface, OM interface, and system clock interface.

Extension subrack that provide the same services as main subrack , The EPS performs the functions of user plane processing and signaling control.

The TCS processes CS services by performing the functions of voice adaptation and code conversion

BM/TC Separated Mode


EPS Subrack

MPS Subrack

EPS Subrack

EPS Subrack

TCS Subrack

TCS Main Subrack

TCS Subrack

TCS Subrack

Mandatory Optional / expand according to the traffic needs


BM/TC Combined Mode


MPS Subrack

EPS Subrack

EPS Subrack


In this configuration mode the BM and TC cabinets areMerged into one cabinets that will perform all the functions thus provide maximum integration , but the transcoder in this case cannot be adopted remotely.

A over IP Mode


EPS Subrack

MPS Subrack

EPS Subrack

EPS Subrack


In this configuration mode the BSC doesn’t need TCS because the transcoding function will be performed by Huawei media gateway at the core side (MGW).

Boards Types


OMUc

XPUb

FG2c

GOUc

DPUf

DPUg

PM Management , CM management , LMT interface , Alarms management.

Main BSC controller , user plane management control plane management, Signaling processing

A , Abis , Gb interface , contains 12 FE or 4 GE ports Uses IP over Ethernet technology over elec. Cable

A , Abis , Gb interface , contains 4 GE ports Uses IP over GE technology over optical fiber

Speech coding and decoding , speech multiplexing IP frames handling , service processing

Data packet services processing , do all the tasks of GSM PCU

Boards Types


SCUb

GCUa

EIUa

POUa

GCGa

TNUa

GE and IP switching , main Switch for most of system communications , distribute clocks.

Main clock generator in BSC6900 , distribute the clocks to other boards

A ,Ater, Abis , Gb interface , contains 32 E1/T1 Electrical ports

A , Abis , Gb interface , contains 4 STM1 ports Uses IP over TDM technology over optical fiber

Main clock generator in BSC6900 , distribute the clocks to other boards and contains GPS clock

Provides TDM switching and serves as the center in the circuit switched domain.

MPS Subrack boards configuration


REAR PANEL

FRONT PANEL

• MPS Subrack boards in case of BM/TC Separated mode

EPS Subrack boards configuration


REAR PANEL

FRONT PANEL

• EPS Subrack boards in case of BM/TC Separated mode

TCS Subrack boards configuration


REAR PANEL

FRONT PANEL

• TCS Subrack boards in case of BM/TC Separated mode


Hardware development in BSC6900

OMUb

XPUa

FG2a

GOUa

DPUc

DPUd

BSC6000

SCUa

GCUa

OMUa

XPUb

FG2c

GOUc

DPUc

DPUd

BSC6900 R11

SCUa

GCUa

GCGa

POUa

OMUc

XPUb

FG2c

GOUc

DPUf

DPUg

BSC6900 R13

SCUb

GCUa

GCGa

POUa

EIUa EIUa EIUa


Hardware development in BSC6900OMUb OMUa OMUc

OMU version B

1.Configuration Mana.2.Performance Mana.3.Fault Management4.Security Management5.Loading Management6.Hard-disk: 146 GB * 2 7.Memory capacity : 2 GB8.record alarms:150000alarm

OMU version C

Higher capabilities with higher integration (take one timeslot only)

1.Hard-disk: 500 GB2.Memory capacity : 8 GB3.record alarms:150000alarm

OMU version A

Same functions as version B but the board has some enhancement in power consumption and lighter weight



OMU version B OMU version C



XPU version A

•Manage user plane and control plane resources in GSM services and control plane resources in transport services.•Processing capability of the main

control : 270 TRXs, 384 cells, 384 BTSs, and 492,000 Busy Hour Call Attempts (BHCAs).•Processing capability of the non-

main control :360 TRXs, 384 cells, 384 BTSs, and 656,000 BHCAs

XPU version B

•Manage user plane and control plane resources in GSM services and control plane resources in transport services.•Processing capability of the main

control : 640 TRXs, 768 cells, 768 BTSs, and 1,148,000 Busy Hour Call Attempts (BHCAs).•Processing capability of the non-

main control :640 TRXs, 768 cells, 768 BTSs, and 1,148,000 (BHCAs).

XPUa XPUb



DPU version C

•Provides the speech format conversion and data forwarding functions.• Encodes and decodes voice

services.•Provides the Tandem Free

Operation (TFO) function.• Supporting 960 TCH/Fs.

DPU version F

•Provides the speech format conversion and data forwarding functions.• Encodes and decodes voice

services.•Provides the Tandem Free

Operation (TFO) function.• Supporting 1,920 TCHFs.

DPUc DPUf

DPUd DPUg

DPU version D

•1,024 simultaneously active PDCHs where signals are coded in MCS9

DPU version G• Less power consumption• 1,024 simultaneously active PDCHs

where signals are coded in MCS9



SCU version A

•provides the maintenance management and GE switching platform.• Switching capacity :60 G-bit/s

SCU version B

•provides the maintenance management and GE switching platform.• Switching capacity :240 G-bit/s

SCUa SCUb

FG2a FG2c

FG2 version A•Provides 8 channels over FE ports

or two channels over GE ports.•Provides the link aggregation

function at the MAC layer.• Supports the A, Abis, and Gb

interfaces.

FG2 version C• Provides 12 channels over FE

ports or two channels over GE ports.

• Provides the link aggregation function at the MAC layer.

• Supports the A, Abis, and Gb interfaces.


• Interfacing boards : More transport technologies are deployed in BSC6900 to support IP and ATM.


EIUaOIUa

TDM

POUaPEUa

IP Over TDM

GOUcFG2c

IP Over Eth

2. Technical Description of BSC6900 :

• Specification comparison.

• Logical structure of BSC6900.

• Clock synchronization and distribution.

• Data Configuration Modes.

• Performance Management.

• Signaling flows in CS & PS.




Specifications comparison

Specification BSC6000 BSC6900 (V900R13)

Maximum Number of TRXs 2048 TRXs 4096 TRXs

Number of configured PDCH 8192 PDCHs 30720 PDCHs

Number of concurrent PDCH (MCS-9) 8192 PDCHs 16384 PDCHs

BHCA (busy hour call attempts) 3500 K 5900 K

Traffic volume 13000 Erls 24000 Erls

Gb interface throughput 512 Mbit/s 1536 Mbit/s

Logical structure of BSC 6900


Clock synchronization and distribution


Clock sources:

1. BITS Clock2. LINE Clock3. GPS Clock4. External clock

The BSC6900 supports two data configuration modes: • effective mode .• ineffective mode.

Effective modeIf data configuration is performed on the BSC6900 in effective mode, then the relevant configuration data takes effect on the host boards in real time.Ineffective modeIf data configuration is performed on the BSC6900 in ineffective mode, then the relevant configuration data takes effect only after the BSC6900 is reset or is switched to the effective mode.

Data Configuration Modes


Effective mode process


The changes made on boards immediately in real time

Ineffective mode process


The changes made on database file only , only after reset or change the mode to effective then the changes will be sent to boards.

Data Configuration Modes


• The OMU stores a maximum of 5 GB performance

measurement data generated within the last 14 days. If the data exceeds the time or size, the data on the earliest day is deleted.

• Measurement types:

1. Default measurement objects

2. Optional measurement objects

3. Real time measurement objects

Performance Management


User plane Signaling flows


• CS Signaling flow Abis over TDM , Ater over TDM and A interface over TDM

• CS Signaling flow Abis over TDM , Ater over IP and A interface over TDM

User plane Signaling flows


• CS Signaling flow Abis over IP , Ater over TDM and A interface over TDM

• PS Signaling Flow

82043574 BSC6900 Presentation

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