5.CDMA WLL Equipment Configurationl

Apr 8, 2023 ALTTC/ HKD 1

CDMA BASED

WIRELESS IN LOCAL LOOP EQUIPMENT

(LG MAKE)

Apr 8, 2023 ALTTC/ HKD 2

WIRELESS IN LOCAL LOOP

- IT IS SOMETIMES CALLED FIXED CELLULAR.

- NORMALLY USED FOR RURAL OR UNPOPULATED AREA.

- WLL CAN BE A QUICK SOLUTION FOR DEPLOYING

TELEPHONES INFRASTRUCTURE.

- ELEMINATES MANY PROBLEMS AND REDUCE COST

INHERENT TO WIRELINE LOOP SYSTEM IN CERTAIN AREAS.

- DECREASES THE TIME TO DEPLOY A NETWORK.

Apr 8, 2023 ALTTC/ HKD 3

ADVANTAGES OVER GSM

- BIGGER COVERAGE AREA.

- HIGHER CAPACITY.

- IMPROVED SIGNAL AND REDUCED INTERFERENCE.

- FREQUENCY REUSE DISTANCE IS REDUCED.

Apr 8, 2023 ALTTC/ HKD 4

SYSTEM SPECIFICATIONS- SYSTEM IS MANUFACTURED BY LGIC ON IS-95 STANDARDS.

- FREQUENCY BAND

824 - 849MHz (FSU - BTS)

869 - 894MHz (BTS - FSU)

- MULTIPLE ACCESS METHOD IS CODE DIVISION MULTIPLE ACCESS.

- DUPLEXING METHOD IS FDD.

- ACCESS CHANNELS PER CARRIER PER SECTOR ARE 23 TO 40.

- RF SPACING IS 1.25MHz.

- DUPLEX SEPERATION IS 45MHz.

- COVERAGE IN RURAL IS UPTO 25 KM AND IN URBAN 5KM RADIUS.

Apr 8, 2023 ALTTC/ HKD 5

- INTERFACE WITH PSTN

V5.2 ( RURAL SYSTEMS) &

R2MF /CCS7 ( URBAN SYSTEMS)

- ONE BSC CAN SUPPORT

20,000 SUBSCRIBERS (R2/NO.7 SYSTEM) OR

10,000 SUBSCRIBERS (V5.2 SYSTEM)

- VOICE CODING

8K/13K QCELP

8K EVRC

- MAX. 8FAs CAN BE USED WITH ONE BTS.

- ONE BTS CAN SUPPORT UPTO 8,000 SUBSCRIBERS.

Apr 8, 2023 ALTTC/ HKD 6

SYSTEM CONFIGURATION

WLL SYSTEM CONSISTS:

- BASE STATION CONTROLLER (BSC)

- BASE TRANCEIVER SUBSYSTEM (BTS)

- BASE STATION MANAGER (BSM)

- FIXED WIRELESS TERMINAL (FWT)

- MOBILE STATION (MS)

Apr 8, 2023 ALTTC/ HKD 7

ITEMS TO BE SUPPLIED

- BSM/BSC/BTS/TERMINALS/MOBILE.

- DC-DC CONVERTER.

- SMPS POWER PLANT FOR BSC/BTS.

- BATTERY BANK FOR BSC/BTS.

- TOWER/DDF/OPTIMUX.

- SOFTWARE, TOOLS &TESTER.

- INVERTER FOR BSM -3KVA.

- ALARM DEVICE.

- ANTENNAS, GPS ANTENNAS.

- FEEDER CABLE.

Apr 8, 2023 ALTTC/ HKD 8

PSTN PSPDN

BSM

BSC

BTS

BTS

MS

FWT

RS422

LGIC PROPERIETERY (BHI)

X.25R2/NO.7/V5.2

(E1 LINK)

NETWORK DIAGRAM

(E1 LINK)

Apr 8, 2023 ALTTC/ HKD 9

BASE STATION CONTROLLER (BSC)

IT IS LOCATED BETWEEN BTS AND PSTN.

ITS CAPACITY IS 20,000/10,000 SUBSCRIBERS.

IT CONTROLS UPTO 48 BTSs.

INTERFACE WITH PSTN

- R2/NO.7

- V5.2

BSC FUNCTIONS

- CALL PROCESSING BETWEEN WLL AND PSTN, HAND OFF

- TRANCECODING 64 KBPS PCM DATA AND CDMA QCELP DATA AND ECHO CANCELLING

SUBSCRIBER MANAGEMENT AUTHENTICATION, MOBILITY MANAGEMENT.

Apr 8, 2023 ALTTC/ HKD 10

- CUSTOMER CALLING SERVICES

- PROVIDES INTERFACES

- DATA INTERWORKING ( IWF )

- PROVIDES OA AND M OF WLL THROUGH BSM

VOICE:- 8K QCELP

13K QCELP

8K EVRC

Apr 8, 2023 ALTTC/ HKD 11

CUSTOMER CALLING SERVICES

R2/NO.7 SYESTEM

- CALL FOR WARDING

- CALL WAITING

- CALL TRANSFER

-CALLER LINE IDENTIFICATION PRESENTATION / RESTRICTION

- 3- WAY CALLING / CONFERENCE CALL

- MALICIOUS CALL TRACE

- AUTHENTICATION etc.

V5.2 SYESTEM

WLL CAN SUPPORT SERVICES TRANSEPARENTLY PROVIDED BY

PSTN- LE.

Apr 8, 2023 ALTTC/ HKD 12

SYSTEM USING R2/NO.7 PROTOCOL

IN THIS SYSTEM EXISTING PSTN ACCOMODATES R2 SIGNALLING OR CCS7 SIGNALLING.

SYSTEM CAPACITY - 20,000 SUBS. MAX. (18,920)

( TAKING .1 ERLANG PER SUBS. &1%GOS)

CONNECTIVITY WITH PSTN - 64E1 LINKS MAX.

NO. BTSs WITH ONE BSC - 48

SELECTOR/VOCODING - 1920CHLs.

CHANNEL CAPACITY: - 8 SVC CHL/PBA

- 16 PBA/SHELF(128 SVC CHLs

UPTO 15 SHELVES/BSC

(15X128=1920)

Apr 8, 2023 ALTTC/ HKD 13

IWF CAPACITY: - 512CHLs (UPTO 4SHELVES)

SWITCH NETWORK: - T-SWITCH

POWER REQUIREMENT: - -48V DC (-43 TO -55V)

TEMPERATURE: - 0 ~ 50 DEG.C

HUMIDITY : - 0 ~90 %

SIZE OF ONE RACK: - 750mm(W)X700mm(D)X1886mm(H)

Apr 8, 2023 ALTTC/ HKD 14

SYSTEM USING V5.2 PROTOCOL

THIS SYSTEM ACCOMODATES V5.2 PROTOCOL WHICH IS BEING SETTELED AS STANDARD PROTOCOL FOR WLL SYSTEM. BILLING AND NUMBER TRANSLATION FUNCTIONS ARE PERFORMED BY PUBLIC NETWORK.

- TRAFFIC HANDLING CAPACITY : - 995 ERLANG

- NO. OF SUBSCRIBERS ACCOMODATED : - 9950 SUBS. (.1E/SUBS)

CONNECTIVITY WITH PSTN - 32 E1 LINKS MAX.

NO. BTS PORTS - 48 E1

SELECTOR/VOCODING - 1024 CHLs.

CHANNEL CAPACITY: - 8 SVC CHL/PBA

- 16 PBA/SHELF(128 SVC CHLs

- UPTO 8 SHELVES/BSC (8X128=1920)

Apr 8, 2023 ALTTC/ HKD 15

IWF CAPACITY: - 256CHLs (UPTO 2SHELVES)

SWITCH NETWORK: - T-SWITCH

POWER REQUIREMENT: - -48V DC (-43 TO -55V)

TEMPERATURE: - 0 ~ 50 DEG.C

HUMIDITY : - 0 ~90 %

SIZE OF ONE RACK: - 750mm(W)X700mm(D)X1886mm(H)

Apr 8, 2023 ALTTC/ HKD 16

BSC RACKS(R2/NO.7)

WICR WNIR MSIR MTIR MINR MHIR

VMH/

CMX

LSI

TSW

MTU

X.25DKU/

GPS

ASP GSP

OCP CCSP CCP

WTFC

CIN0

CSB0

TLSP DCIP

DCI

16E1

DCI

16E1

PDIP0 PDIP1

CSB5

CSB4

CSB3

CSB2

CSB1

DCI DCI

16E1 16E1

CSB10

CSB9

CSB8

CSB7

CSB6

CIN1

CSB15

CSB14

CSB13

CSB12

CSB11

MCIN

CCIN0

CCIN1

CSB16

CSB17

CSB18

Apr 8, 2023 ALTTC/ HKD 17

BSC RACKS(V5.2)

WICR WNIR MSIR

DCI

16E1

DCI

16E1

TSW

WTFC

DKU/RGPS

TLSP/DCIP

OCP

CSB3

CSB2

CSB1

CSB0

CIN

VCP CCP

CSB9

CSB8

CSB7

CSB6

CSB5

CSB4

Apr 8, 2023 ALTTC/ HKD 18

BSC (R2/NO.7 TYPE) DISSIPATED CURRENT

CABINET DISSIPATED CURRENT

(AMP.)

WICR

WNIR

MSIR

MTIR

MINR

IWFR

36.20

25.44

36.03

35.40

32.30

18.70

BSM 39.70

Apr 8, 2023 ALTTC/ HKD 19

WICR (WLL INTERFACE CONTROL RACK)

1. VMH/CMX (VOICE MASSAGE HANDLER& CONFERRENCE MIXER)

APSU CARD -2NOs.

(ANNOUNCEMENT PRIMARY/SECONDARY UNIT)

IT PROVIDES FACILITY FOR 32 ANNOUNCEMENTS.

CMCAN CARD -2NOs.

( CLOCK MIXER CIRCUIT BOARD ASSEMBLY)

IT PROCESSES MULTIWAY CALL PROVIDED BY WLL SYSTEM.

2. LSI (LOCAL SERVICE INTERFACE)

- USTAN -2NOs. (UNIVERSAL SIGANALLING TRANS-RECEIVE BOARD ASSEMBLY)

TRANSMITS AND DETECTS VARIOUS SIGANALS TO PROCESS CALL CONNECTION.

Apr 8, 2023 ALTTC/ HKD 20

3. TSW (TIME SWITCH)

- MDXA (MUX/DEMUX BOARD ASSY.) -6NOs.

- TSWA (TIME SW BOARD ASSY.) -2NOs.

- TNDA (TIME SW N/W SYNC. & DISTRIBUTOR BOARD ASSY.)

–2NOs.

TSW PERFORMS TIME SLOT INTERCHANGE TO PROVIDE CALL PATH.

4. MTU(MAGNETIC TAPE UNIT)

DATA STORAGE FROM DKU.

5. I/O PORT/X.25

PSAA (PORT SWITCHING ADAPTER BOARD ASSY.) -2NOs.

TWO PHYSICAL PORTS FOR ONLINE TRANSMISSION OF BILLING DATA.

Apr 8, 2023 ALTTC/ HKD 21

6. DKU (DISK UNIT BLOCK)

- POAO6 (DISK POWER SUPPLY CCT BOARD -2NOs.

- POAO7 (DISK INTERFACE CCT BOARD) -2NOs.

FOR RECORDING CHARGING DATA AND FOR DATA LOADING

OF WLL SYSTEM SW PART.

7. RGPS( REDUNDANT GLOBAL POSITIONING SYSTEM )

-GPSU -R – 2UNITS

RECEIVS CLOCK FROM GPS SATELLITE. CLOCKS AVAILABLE

FOR USE ARE TOD, 10MHz AND 1PPS PULSE.

8. ASP (ACCESS SWITCHING PROCESSOR)

-MPRA(MAIN PROCESSOR&REDUNDANCY CONTROL BOARD ASSY) -2NOs.

- IPGA (INTER PROCESSOR COMM. & GLOBAL BUS CONTROL BOARD ASSY. -2NOs.

Apr 8, 2023 ALTTC/ HKD 22

MANAGES AND CONTROLS CALL RESOURCES FOR INTERWORKING BETWEEN AIR I/F AND PSTN INTERFACE.

9. GSP(GLOBAL SERVICE PROCESSOR)

- PIHA (PP & IPC HARDWARE BOARD ASSY.) -2NO.

PROVIDES ANNOUNCEMENT AND FUNCTIONS RELATED TO THE CONFERENCE CALLS IN THE R2/NO.7 SYSTEM.

10. OCP(OPERATION CONTROL PROCESSOR)

- MPRA (MAIN PROCESSOR AND REDUNDANCY CONTROL BOARD ASSY. -2NOs.

- IPGA (INTER PROCESSOR COMM. & GLOBAL BUS CONTROL BOARD ASSY) -2NOs.

- IOXA (I/OX.25 I/F BOARD ASSY.) -2NOs.

- MIFA (MASS STORAGE & FILE SYSTEM BD ASSY.) -2NOs.

FUNCTIONS RELATED TO THE MTCE OF WLL SYSTEM AND CONTROLS THE AUX. MEMORY UNIT. NO. TRANSLATION FUNCTION, CALL ROUTING CONTROL, TRANSIT CALL PROCESSING ETC.

Apr 8, 2023 ALTTC/ HKD 23

WNIR (WLL N/W INTERFACE RACK)

11. DCI (DIGITAL CEPT INTERFACE)

- ECIA-N/ETIA - 4+4 FOR 32E1 LINKS. (EXTENDED CEPT INTERFACE)

12. CSB (CDMA SELECTOR BANK)

- SVEA (SELECTOR VOCODER & ECHO CANCELLER BD ASSY.) -16NOs.

- SBPA (SELECTOR BANK PROCESSOR BD. ASSY.) -1NO.

CONVERSION BETWEEN QCELP & PCM DATA. DCI/TSW I/F. CIN BLOCK I/F.

13. CIN (CDMA INTER NETWORKING)

- CIRA (CDMA INTERNETWORKING ROUTING BD. ASSY.) -2NOs.

- CINA (CDMA INTERNETWORKING NODE BD, ASSY.) -2NOs.

- CIGA (CDMA INTERNETWORKING GATEWAY BD. ASSY.) -2NOs.

Apr 8, 2023 ALTTC/ HKD 24

- CITA (CDMA INTERWORKING TRUNK BD. ASSY.) -2NOs.

CIN INTERFACES WITH BTS, CSB BLOCK,CCP BLOCK, TMP (WTFC) AND BSM. IT PROVIDES COMM. PATH FOR VOICE PKT & CONTROL PKT IN MOBILE COMM. USING CDMA. IT PROVIDES ALL PHYSICAL CONNECTIONS FOR CALL PROCESSING.

14. TLSP (TIME SW & LOCAL SERVICE PROCESSOR)

-PIHA (PERIPHERAL & I/F H/W BLOCK ASSY.) -10 Nos.

CONTROLS THE TIME SW AND THE LOCAL SERVICE I/F EQPT. DCIP CONTROLS THE DIGITAL TRUNKS FOR TRANSIT CALLS.

15. WTFC (WLL TIMING & FREQUENCY CONTROL)

- WINA(WLL NETWORKING NODE BD. ASSY)

- WIRA (WLL NETWORKING ROUTING BD. ASSY)

- CDMA (CLOCK DISTRIBUTION & MGMT BD. ASSY.)

- BACA (BSS ALM COLLECTION BD ASSY.)

- TMPA (TIMING MGMT PROCESSOR BD ASSY.)

Apr 8, 2023 ALTTC/ HKD 25

WTFC HAS A TIMING MODULE (TMPA & CDMA) FOR PROVIDING SYSTEM SYNCHRONIZATION AND CLOCK USING TOD AND SYNC SIGNALS PROVIDED FROM RGPS RECEIVER.

16. CCSP (CCS7 PROCESSOR)

- SGBA (SS7 GLOBAL BUS I/F BD ASSY.) -1NO.

- SMDA (SS7 MESSAGE HANDLING & ADMN BD ASSY.) -1NO.

- STFA (SIGANALLING TRML FUNCTION BD ASSY.) -2NOs.

PROVIDES CCS7 SIGANALLING.

17. CCP (CALL CONTROL PROCESSOR)

- BIPA( BSC INTERNETWORKING PROCESSOA BD ASSY) -1NO.

- BMPA (BSC MAIN PROCESSOR BD ASSY.) -1NO.

MAIN PROCESSOR, PERFORMS CALL CONTROL FUNCTION SUCH AS CALL SETUP AND RELEASE REQUEST SENT FROM TRML, PAGING, SELECTOR ASSIGNMENT &RELEASE, MANAGES CALL STATUS INFORMATION, TRAFFIC CHL ADDRESS, CELL ID etc.

Apr 8, 2023 ALTTC/ HKD 26

MSIR( MOBILE STATION INTERFACE RACK)

CSB (CDMA SELECTOR BANK)

- SVEA (SELECTOR VOCODER & ECHO CANCELLER BD ASSY.) -16NOs.

- SBPA (SELECTOR BANK PROCESSOR BD. ASSY.) -1NO.

CONVERSION BETWEEN QCELP & PCM DATA. DCI/TSW I/F. CIN BLOCK I/F.

Apr 8, 2023 ALTTC/ HKD 27

BASE TRANS-RECEIVE SUBSYSTEM(BTS)

IT IS LOCATED BETWEEN MS AND BSC. BTS PERFORMS CALL CONTROL AND MAINTENANCE FUNCTIONS CONCERNING MSs. IT GUIDES MSs TO RECOGNIZE THE BTS, ASSIGNS TRAFFIC CHLs UPON THE CALL REQUESTS AND OPENS CALL PATHS.

BTS TYPES:

- INDOOR TYPE UPTO 8 FA

- OUTDOOR TYPE UPTO 4 FA

(a) STANDARD 8FA/3SECTOR

(b) COMPACT 8FA/3SECTOR

(c) MICROCELL 1 FA/3SECTOR

(d) PICOCELL 1 FA/1SECTOR

Apr 8, 2023 ALTTC/ HKD 28

BTS SPECIFICATIONS:

BTS TYPE: STANDARD ( INDOOR) UPTO 8 FA/ 3 SECTORS TRAFFIC CHLS CAPACITY 8 K VOCODING - UPTO 40 CHLS PER SECTOR: 13 K VOCODING - UPTO 23 CHLS

TRAFFIC HANDLING >9 ERLANG/SECTOR/FA BP =2%

CAPACITY PER SECTOR:

NO. OF FA PER BTS: UPTO 8 FA/ 3 SECTORS(1 FA = 1.25 MHz)

NO. OF CHLS PER BOARD: 16 CHANNEL ELEMENTS

NO. OF RECEIVER ANT. 2 EA/ SECTOR

SECTORIZATION: OMNI, 3SECTORS

Apr 8, 2023 ALTTC/ HKD 29

FREQ. BAND: BTS - FSU 869 - 894 MHz FSU - BTS 824 - 849 MHz

POWER REQUIREMENT: DC + 24V

TEMPERATURE: 0 ~ 50 DEG. C

RACK SIZE : 750mm(W)X650mm(D)X1886mm(H)

TX FREQUENCY(MHz)= 0.03N+870 RX FREQUENCY(MHz)=0.03N+825 WHERE N=CHL NO.(1 TO 799)

Apr 8, 2023 ALTTC/ HKD 30

BTS RACKS

BSCR BSRR BSDR

BHI DUFA

CCB LNA

LPA

LPA

LPA

CCB

TCP

UDC

GPSU-R

BHI

CCB

CCB

CCB

UDC

UDC

CCB

CCB

CCB

UDC

1FA,2FA1FA,2FA,3FA,4FA

1FA,2FA,3FA,4FA,5FA,6FA,7FA,8FA

Apr 8, 2023 ALTTC/ HKD 31

BHI(BACK HAUL INTERFACE)

CIRA (CDMA INTERNETWORKING ROUTING BD ASSY.) -2NOs.

- CINA (CDMA INTERNETWORKING NODE BD ASSY.) -4NOs.

- CITA (CDMA INTERNETWORKING TRUNK BD ASSY.) -2NOs.

PROVIDES COMMUNICATION PATH OF VOICE PKTS & CONTROL PKTS WITHIN THE BTS AND B/W BSC & BTS.

CCB (CDMA CHL BANK)

- DCPA (DIGITAL CHL PROCESSOR BD ASSY.) -2NOs.

- MCPA (MULTI CHL PROCESSING BD ASSY.) -8NOs.

- BDCA (BB DISTRIBUTION & COMBINING BD ASSY.) -2NOs.

- BSCA (BASE STN SECTOR CONVERSION BD ASSY.) -4NOs.

CCB PROCESSES CDMA CHANNELS AND PERFORMS DIGITAL & ANALOGUE SIGNAL PROCESSING FOR IS 95A CALLS OF EACH CHL AND I/F WITH RF BLOCK.

Apr 8, 2023 ALTTC/ HKD 32

TCP ( TIME & FREQENCY CONTROL PROCESSOR)

- TFPA (TIMING & FREQUENCY PROCESSOR BD ASSY.) -2NOs.

- TRMA (TIMING REFERENCE MASTER BD ASSY.) -2NOs.

- BACA (BSS ALARM COLLECTION BD ASSY.) -2NOs.

- BSPA: CONTROLS CALL PROCESSING AND STATUS MGMT OF BTS.

PERFORMS THE GENERAL AND MGMT OF THE FULL FUNCTION OF THE BTS HARDWARE & SOFTWARE.

UDC (UP DOWN CONVERTER)

- RFPA (RF PROCESSOR BD ASSY.) -2NOs.

- PVMA (POWER & VSWR MONITOR BD ASSY.) -1NO.

- PCUA (PATH CONTROL UNIT ASSY.) -1NO.

- UDCA (UP DOWN CONVERTORBD ASSY.) -6NOs.

DUFA (DUPLEXER FRONT END BLOCK) -3NOs.

Apr 8, 2023 ALTTC/ HKD 33

PHYSICAL CHANNELS:-

STANDARD BTS- 128CHLs/3SECTOR/FA

COMPACT BTS- 100CHLs/3SECTOR/FA

MICROCELL BTS- 60CHLs/FA

PICOCELL BTS- 20CHLs/FA

BTS POWER REQUIREMENTS:-

DC-DC CON.

48V

FROM BTY/SMPS POWER PLANT

+24V1 4

2

3

5

6

24V/300A

6MODULE DC-DC CON.

Apr 8, 2023 ALTTC/ HKD 34

1FA 55A AT 24V OR 110A AT 48V

100A AT 48V OR 200A AT 24V

143A AT 48V OR 286A AT 24V

2FA

3FA

Apr 8, 2023 ALTTC/ HKD 35

FIXED WIRELESS TERMINAL

SUPPLIED ITEMS WITH SUBS. UNIT ARE

1. FWT-200F

2. DIPOLE ANTENNA GAIN-2dbi POL. -VER.

3. BATTERY INTERNAL

4. AC/DC ADOPTER 100V -250V AC

5. PATCH PANEL ANTENNA

EXTERNAL ANTENNA, DIRECTIONAL ANT., GAIN-8dbi

CBLE LENGTH= 4M MAX. CABLE LOSS -.5db/M

6. IN FWT

- NETWORK INTERFACE MODULE

- FAX MODEM

- RF MODULE

Apr 8, 2023 ALTTC/ HKD 36

7. THREE PORTS

- TELEPHONE PORT

- PC PORT

- FAX PORT

8. BATTERY TYPE: Ni -MH

CAPACITY: 2.1 AH

VOLTAGE: 8.4V(7CELL)

CHARGING TIME: 10 -15 HRS

CURRENT CONSUMPTION: SLEEP MODE = 50-150mA

IDLE MODE = 150-200mA

TALK MODE = 600-700mA

9. TRANS. POWER 27-34 dbm

RECEIVE POWER -104 dbm THRESHOLD

Apr 8, 2023 ALTTC/ HKD 37

TYPES OF FWT:-

1. SINGLE SUBSCRIBER UNIT(SSU)

A FIXED UNIT WITH A STANDARD WIRELINE INTERFACE.

- VOICE PORT (RJ 11)

- COM(PC) PORT RS232

- G3 FAX PORT (RJ 11)

2. MULTI-SUBSCRIBER UNIT(MSU)

A FIXED UNIT WITH MULTIPLE SUBSCRIBER INTERFACE.

PROVIDES 32 SUBS INTERFACES USING 4RF.

Apr 8, 2023 ALTTC/ HKD 38

SUPLIMENTARY SERVICES SUPPORTED BY FWT

- AUTOMATIC ALARM SERVICES.

- CALLING WAITING

- CALL DIVERTING -BUSY, NO ANSWER OR UNCONDITIONAL.

- SUBSCRIBER AS INCOMING ONLY

- SUBSCRIBER AS OUTGOING ONLY

- DYNAMIC LOCK

- 3WAY CONFERENCING.

- ABBREVIATED DIALLING

- MALLACIOUS CALL

- INTERCEPTION CALL

- PRIORITY LINE

Apr 8, 2023 ALTTC/ HKD 39

BASE STATION MANAGER (BSM)

FUNCTION:-

- SUBSCRIBER MANAGEMENT

- MAN MACHINE INTERFACE

- OPERATION, ADMINISTRATION & MAINTENANCE

- CONFIGURATION MANAGEMENT

- PERFORMANCE MANAGEMENT

INTERFACE:-

- INTERFACE TO BSC WITH RS422

- NETWORK PROTOCOL- TCP/IP

SPECIFICATION:-

- SUN MICROSYSTEMS ULTRA5

- GUI: X-WINDOW MOTIF 2.X

Apr 8, 2023 ALTTC/ HKD 40