This document provides an introduction to key concepts in physical verification and drive testing for cellular networks. It defines terms like mechanical tilt, electrical tilt, antenna beamwidth, BCCH, ARFCN, BSIC, frequency reuse, and TEMS software. It also lists parameters to check during drive testing like current channel, serving neighbor, radio parameters, and C/I and C/A ratios.

1. WHILE START DRIVE TEST LEARNING, YOU MUST KNOW THE BASIC
THINGS!
THESE ALL CONOTENTS ARE AT INTRODUCTORY LEVEL.
# WHAT IS PHYSICAL VARIFICATION?
# WHAT INSTRUMENT WE CARRY DURING DRIVE TEST AND FOR WHAT
PURPOSE?
# MECHANICAL AND ELECTRICAL TILT?
# WHAT ARE THE TYPES OF ANTINA?
# WHAT IS BEAMWIDTH?
# WHAT IS ANTINA BEAMWIDTH?
# RECIEVER LEVEL?
# RECIVER QUALITY?
# WHAT IS LOGFILE?
# WHAT IS THE USE OF MCOM 4.2 ?
# WHAT IS BCCH & ARFCN?
# WHAT IS BSIC?
# FREQ. REUSE?
# WHAT IS TEMS?
# HOW MANY VERSION THIS HAVE?
# WHAT IS THE DIFF.TYPE OF DRIVE TEST?
# WHAT IS BENCH MARK KIT?
# WHAT WORK WE HAVE IN BTS?
# WHAT WORK WE HAVE IN MSC?
# WHAT IS IDLE MODE AND DEDICATED MODE?
# WHY WE DO DT IN IDLE MODE AND DEDICATED MODE?
WHAT IS EET?
# WHAT IS AT?
# WHAT IS PHYSICAL VARIFICATION?
ACTUALLY THIS IS PRILIMINARY TEST OF DRIVE TESTER IN WHICH THEY
TOLD US TO CHECK OR ADJUST, GSM HEIGHT, DIRECTION, CABLE
CONNECTOR, ELECTRICAL TILT OR MECHANICAL TILT.
ANTENNA ADJUSTMENTS:
ANTENNA ADJUSTMENTS SUCH AS ANTENNA TILT AND HEIGHT AFFECTS
THE SIGNAL STRENGTH AND THEREBY THE CELLS BOARDERS AND
INTERFERENCE LEVELS .
BY DOENTILTING THE ANTENNAS ,A CALMER BEHAVIOR IS GENERALLY
ACHIEVED IN THE NETWORK .THE SIGANL STRENGTH BECOMES MORE
CONCENTRATED TO THE AREA CLOSE TO THE SITE .DOWNTILTING AN
ANTENNA CAN REDUCE THE IN INTERFERENCE IN CO- CHANNEL OR
ADJUSTENT CHANNEL CELLS AS WELL AS IN THECELL ITSELF.
THE MAJOR DRAWBACK OF HAVING TOO MUCH DOWNTILT IS THE RISK OF A
LOSS IN OVERALL COVERAGE.

2. # MECHANICAL AND ELECTRICAL TILT?
AS NAME INDICATES “TILT” , IT JUST LIKE THE SAME THING WHICH WE
GIVE TO OUR TABLE FAN FOR GETTING AIR.THE SAME WE DO FOR GETTING
COVERAGE .
OK! IN GSM THERE ARE TWO TYPES OF TILT.
MECHANICAL TILT
ELECTRICAL TILT
ITS DEPEND ON YOUR ANTENNA COMPANY THAT U HAVE TWO TYPES OF
TILT OR NOT .SOME COMPANY HAVE TWO TYPS OF TILT AND VICE VERSA.
OK!
MECHANICAL TILT:
LIKE ITS NAME THIS TILT IS GIVEN BY PHYSICALLY TILTING U R
ANTENNA.THE SPECIALITY OF THIS TILT IS ,IT CONCENTRATE ON
PARTICALUR AREA LIKE WHEN WE ARE FOCUSING THE TORCH ON
PARTICAULAR OBJECT ON PARTICAULAR PART THEN WE GET THE DARK
PORTION OF THAT AREA.
ANOTHER EASY EX.
IF ANY VILLAGE WE SET UP A SITE .BUT IN THAT PARTICULAR VIL. WE
WANT TO GIVE INDOOR COVERAGE TO MARKET PLACE FIRST , THEN FOR
ANOTHER PART OF THAT VIL. OUTDOOR COV. THEN WE WILL FOCUS OUR
GSM TOWARDS MARKET PLASE BY GIVING THE TILT AT PARTICULAR
DEGRRE.
OK! ITS RANGE IS 0 TO 12 DEGREE.
# HOW MUCH TILTS WE GIVE?
ITS DEPEND ON OUR CLUTTER TYPE.
BUT ALWAYS DON’T GIVE IT ZERO DEGREE.IF YOU GIVES THEN THEIR WILL
BE CHANCES OF CALL DROP.
ALWAYS GIV IT AT LEAST ONE DEGREE.
IF U CONSIDERING CLUTTER, IF THE SITE IS IN UP (EAST) ,THEN ALWAYS
GIV IT 2 OR 3 DEGREE.
IF IT IS IN HP (SHIMLA) I ALWAYS GIVE EITHER 1 OR 4 DEGREE.
BECAUSE IT IS HILLY AREA.OK!
# ELECTRICAL TILT?
I SAID MECH. TILT CONCENTRATE ON PARTICULAR AREA OK! THEN WHAT
DO ELEC. TILT?
ELECTRICAL TILT IS FOR SIDE LOBES .IT WORKS ON HORIZANTAL AND
VERTICAL BEAMWIDTH .IT COVERS ENTIRE AREA IN
ELEPTICALLY.
ITS RANGE IS 1 TO 10.
NORMALLY THIS IS 1 TO 2. ITS DEPEND ON CLUTTER.
# WHAT ARE THE TYPES OF ANTINA?
THERE ARE TWO TYPES OF ANTINA.

3. CITY ANTINA.
HIGH WAY ANTINA.
# WHAT IS BEAMWIDTH?
IT IS ZONE MADE UP FROM RADITION OF ANTEINA FROM HORIZANTAL AND
VERTICAL RADITION.
# WHAT IS THE BANDWIDTH FOR HIGHWAY AND CITY ANTINA?
FOR HIGH WAY IT IS 33 TO 35 DEGREE
AND FOR CITY IT IS 65 OR 90 DEGREE
# FROM WHERE WE ADJUST IT?
WE CANT ADJUST IT . IT IS INTERNAL THING.
# WHAT INSTRUMENT WE CARRY DURING DRIVE TEST AND FOR WHAT
PURPOSE?
PC WITH TEMS S/W
TEMS
GPS/DIGITAL GPS (NO BATEERYIN THAT)
DONGLE(IT IS NOTHING BUT THE AUTHENTICATION KEY OF TEMS S/W)
USB CABLE
INVETER
# RECIEVER LEVEL?
IT IS NOTHING BUT HOW MUCH AMOUNT OF SIGNAL STRENGTH WE GET.
# RECIEVER QUALITY?
THIS IS NOTHING BUT HOW MUCH AMOUNT OF SOUND QUALITY WE GET .
# WHAT IS LOGFILE?
THIS IS THE FORM IN WHICH WE GIVE THE REPORT TO OUR COORDINATOR.
THIS IS THE COLLECTION OF RX.LEVEL AND RX.QUAL. WE GET WHILE DRIVE
TEST.BY ANALISING THIS WE CAN SOLVE THE N/W PROBLEM.
# WHAT IS THE USE OF MCOM?
IT IS THE S/W LIKE MAP INFO. PROFESSIONAL WITH SITE DATA COLLETION
OF EXACT ANTENNA ORIENTATION, MAP.ETC.BY USING THIS WE CAN SEE
WHAT IS THE FREQ.AND BSIC.
AS WELL AS WE CAN SEE WHICH SITE SHOULD BE TAKING ITS HANDOVER
OR WE CAN SEE NEIGHBOUR.
FREQ.HIT IS THEIR THEN, WHAT IS THE MOST CHANCES THAT FREQ.COMING
FROM WHICH SITE?
# WHAT IS BCCH & ARFCN?
BCCH BROADCAST CONTROL CHANEEL AND ABSOLUTE RADIO FREQ.
CHANNEL NO.
THE MAIN SECREAT IS THESE ,BOTH ARE SAME, OK!

4. IN FIG. EVERY ONE SAY FREQ. IS 842,847,844 OR BCCH IS 842,847,844 AND
OTHER IN ROUND BRACKET IS BSIC.
842 DOES NOT NEANS 842 IT WILL BE RANGE OF FREQ .GIVEN IN YOUR
BAND .OK!
842 MEANS EX.FOR 900 BAND (GSM FREQ.UPLINK 890 TO 915 DOWNLINMK
935 TO 960 )
UPLINK 899 TO 903 AND
FOR DOWN LINK IT IS 935 TO 940. THESE RANGES ARE FOR EXAMPLE HERE.
THESE RANGES ARE FOR EXAMPLE HERE.
AND FOR EX. 1800 BAND (GSM FREQ.UPLINK 1710 TO 1785 DOWNLINMK 1805
TO 1880 )
UPLINK 1715 TO 1720
DOWN LINK 1808 TO 1880 THESE RANGES ARE FOR EXAMPLE HERE.
WHAT IS BASIC?
FOR MORE DETAIL SEE ABOVE FIG.
IN FIG . EVERY ONE SAY FREQ. IS 842,847,844 OR BCCH IS 842,847,844 AND
OTHER IN ROUND BRACKET IS BSIC.
BASE STATION IDENTITY CODE IS THE CODE WHERE IN
THE FIRST DIGIT INDICATES NCC AND SECOND DIGIT
INDICATES BCC.
NCC: NETWORK COLOUR CODE
BCC: BASE STATION COLOUR CODE
THE NCC AND BCC HAVE VALUE RANGING FROM O0 TO
77(OCTAL SYSTEM).

5. NCC: THE NCC IS FIXED FOR AN OPERATOR, SIGNIFYING
AT ANY GIVEN POINT THERE CAN BE MAXIMUM OF 8
OPERATORS IN AN AREA.
BCC: BCC DEFINES THE CLUSTER NO.WHICH MEANS A
GROUP OF 8 CLUSTERS CARRY UNIQE IDENTITY WHICH
ARE USED FOR ANOTHER GROUP OF 8 AND SO ON.
EX. IF BSIC IS 65 THEN 6 IS NCC AND 5 IS BCC
IF BSIC IS 55 AND FREQ.IS 55 THEN HO WOULD NOT
TAKE PLACE.
WHAT IS CLUSTER?
GROUP OF FREQ. CAN BE PLACED TOGETHER INTO
PATTERNS OF CELLS CALLED CLUSTER.
CLUSTER IS A GROUP OF CELLS IN WHICH ALL
AVAILABLE FREQ. HAVE BEEN USED ONCE AND ONLY
ONCE.
THE PRINCIPAL FOR ALLOCATION OF THE BSIC IS THE
SAME AS THE RF CARRIER BUT AT CLUSTER LEVEL
RATHER THAN CELL LEVEL.
FREQ. REUSE?
FREQUENCY REUSE IMPLIES THAT IN A GIVEN COVERAGE AREA THERE ARE
SEVERAL CELLS THAT USES THE SAME SET OF FREQ.
THESE CELLS ARE CALLED COCHANNEL CELLS .AND THE INTERFERENCE
BETWEEN SIGNALS FROM THESE CELLS ARE CALLED CO CHANNEL
INTEREFERENCE.
WHAT IS TEMS?

6. TEST EQIPEMENT MOBILE SYSTEM IS A TESTING TOOL USED TO READ AND
CONTROL THE INFORMATION SENT OVER AIR INTERFACES BETWEEN BASE
RADIO
STATION AND THE MOBILE STATION .IT CAN BE USED FOR
COVERAGE MEASUREMENS.IN ADDITION TO FIELD
MEASUREMENT AND POST PROCESSING.
ALL KIT CONSISTS OF MOBILE STATION WITH SPECIAL SOFTWARE, A
PORTABLE PC AND OPTIONALLY A GLOBAL POSITONING SYSTEM
RECIEVER.THE PC IS USED FOR PRESENTATION, CONTROL AND
MEASUREMENT STORAGE.
MS IS USED IN ACTIVE OR IDLE MODE.
WHAT IS THE DIFF. VERSION OF TEMS? AND WHICH INSTRUMENT IS
COMPATIBLE WITH THEM?
TEMS 6.0

7. TEMS 6.1.3 T 610
TEMS 7.0
TEMS 8.0 (NO NEED OF PORT SETTING.)
WHICH PARAMETER WE NEED TO CHECK IN DRIVE
TEST?
1] CURRENT CHANNEL
2] SERVING NEIGHBOUR
3] RADIO PARAMETER
4] C/I
5] C/A
DETAILS !
1] CURRENT CHANNEL:
TIME
CELL NAME
CGI (MCC NCC LAC (BSC) CI)
CELL GPRS SUPPORT
BAND 900/1800/1900
BCCH ARFCN
TCH ARFCN
BSIC
MODE
TIMESLOT
CHANNEL TYPE
CHANNEL MODE
SPEECH CODEC
CIPHERING ALGORITHUM
SUB CHANNEL NO.
HOPPING CHANNEL
HOPPING FREQ.
MAIO
HSN
WHEN YOU START LEARNIG JUST GIVE CONCENTRARION ON (CELL
NAME,CGI (MCC NCC LAC (BSC) CI) ,BAND 900/1800/1900,BSIC ,TIMESLOT
HOPPING CHANNEL,HOPPING FREQ.,MAIO&HSN).
REMAING POINT CONCENTRATES LATER…..
DETAIL:
CGI: CELL GLOBLE IDENTITY:
MCC MOBILE COUNTRY CODE ITS RANGE IS 000 TO 999
FOR INDIA IT IS 404.
MOBILE NETWORK CODE 000 TO 999
OR
SOMETIMES IT IS TWO DIGITS 00 TO 99

8. LAC LOCATION AREA CODE
AND CELL ID BOTH HAVE SAME RANGE
0000 TO FFFF (HEXADESIMAL)
OR
0000 TO 65535
CELL GPRS SUPPORT: IT INDICATES WHETHER GPRS SUPPORTED OR NOT.
YES/NO
BAND:IT INDICATES FREQ BAND OF BCCH CARRIER ONE OF “850” “900”
“1800” “1900” “900E” “900R”
CHANNEL TYPE: ALSO INDICATING WHICH SPEECH CODER IS USED.
FOR EX. “TCH/F” +FACCH/F&SACCH/M” “BCCH”, OR “PDCH”.
Channel mode: Signaling only, speech transmission or data transmission.
Speech codec: currently used speech codec
RANGE “FER, HR, FR, AMR”
CIPHERING ALGORITHUM: CURRENTLY USED CIPHERING (A5/1,A5/2,GEA5/ 1”
ETC.)
WHATEVER FOR CKT. SWITCHED OR PACKT SWITCHED..
SUB CHANNEL NO. : RANGE 0 …..TO ….7 .
NO.OF SUBCHANNEL USED IN SDCCH OR TCH HALF RATE CHANNEL.
HOPPING CHANNEL:
HOPPING FREAUENCY
MAIO: MOBILE ALLOCATION INDEX OFFSET .INDICATES WHERE IN THE
HOPPING FREQ.LIST TO START.
VALID ONLY HOPPING FREQ. IS USED.
RANGE 0……..63
HSN: HOPPING SEQ.NO: HOPPIING SEQ. NO. INDICATING WHICH FREQ. LIST
TO USE.
RANGE 0 …….63
2] SERVING NEIGHBOUR: BSIC ARFCN RX. LEVEL C1 C2
C31 C32
HERE THE DEFINED NEIGHBOUR WILL APPEAR.
3] RADIO PARAMETER: FULL SUB
A] RX LEVEL RANGE -10 TO -120
-10 TO -70 BEST
- 71 TO -80 GOOD
-91 TO -120 BAD

9. B] RX QUALITY (ITS DEPEND ON INTERFERENCE) RANGE 0 TO 7
0 TO 3 GOOD
4 TO 5 AVG.
6 TO 7 BAD
C] FER ACTUAL
D] BER ACTUAL
E] SQI
21 TO 30 OK
ABOUT SQI: IF BSIC AND FREQ ARE SAME THEN SQI GOES NEGATIVE.
4] C/I (WORST /BEST) RANGE 5 TO 25
15 AVG.
10 TO 15
5 TO 10 BAD
MS POWER CONTROL LEVEL
DTX
TA
1 TA = 500m
(RECEIVING LEVEL)RL TIME OUT COUNTER (MIN)
RL TIME OUT COUNTER (MAX)
MS BEHEVIOR MODIFIED.
5] C/A
SEE LATER (MS POWER CONTROL LEVEL DTX, FER ACTUAL ,BER ACTUAL, RL
TIME OUT COUNTER (MIN),RL TIME OUT COUNTER (MAX),MS BEHEVIOR
MODIFIED).
DETAIL:
*FER ACTUAL: IT IS VALID FOR VOICE ONLY.
FER CALCULATED TAKING DTX (DISCONTINEOUS TRANSMISSION) INTO
ACCOUNT I. E. THE FIGURE IS BASED ONLY ON BLOCKS ACTUALLY
TRANSMITTED.
RANGE 0 TO 100 %
IT IS CALCULATED BY
% FER ACTUAL= (NO.OF ERASED BLOCKS /TOT.NO.OF BLOCKS)*100
A BLOCK IS ERASED WHEN PARITY CHECK FAILED.
*BER ACTUAL: RANGE 0 …… TO 26 %
BIT ERROR RATE CALCULATED TAKING DTX (DISCONTINEOUS
TRANSMISSION) INTO ACCOUNT I.E. THE FIGURE IS BASED ONLY ON
BLOCKS ACTUALLY TRANSMITTED.
IT IS VALID FOR VOICE ONLY.

10. *SQI: SPEECH QUALITY INDEX. THE RANGE DEPENDS ON THE SPEECH
CODEC USED.
RANGE: -20 TO 30.DBQ
HALF RATE: -20 TO 17 DBQ
FULL RATE: -19 TO 22 DBQ
ENHANCED FULL RATE: -20 TO 30 DBQ
C/I WORST (BEST) (0): RNAGE -5 TO 35.
C/I FOR THE WORST CHANNEL IN THE HOPPING LIST FOR EACH USED TIME
SLOT.
*MS POWER CONTROL LEVEL: RANGE 0 ….TO 31
PHONE TRANSMIT POWER LEVEL ORDERED BY THE BASE STATION, MAPPED
TO A NO.BETWEEN 0 & 31 ACCORDING TO THE TRANSMISSION 3 GPPTS 05
05, CH 4, VLAID ONLY IN DEDICATED MODE.
*DTX: (RATE DL) RANGE 0 TO 100%.
DISCONTINEOUS TRANSMISSION:
CALCULATED AS = (NO.OF BLOCKS SENT /TOT. NO. OF BLOCKS) * 100
TWO MANDETARY BLOCKS ARE ALWAYS SENT USING DTX: 1 TCH AND 1
SACCH.
NON EXISTENT FOR PACKET SWITCHED (NO.DTX).
* TA: TIMING ADVANCE: RANGE 0 …. TO 63
VALID ONLY IN DEDICATED MODE.
TA is used to compensate the time delays of transmission of radio signals from
different mobiles (Delay of data bits).It is transmitted on SACCH and its
max.value is 63.It means the max. Distance from BTS to MS is 35 km allowed by
TA.
TA increases as go away from the site.
From TA we l measure the distance of MS from the BTS.
1 TA= .550metres
so if TA = 2 then we r around 1.2 km far from the site.
TA = 1 den Ur in a radius of 550 meters from the site whether it shud be 300 mts
or 400 mts.
*TIME SLOT: VALID ONLY IN DEDICATED MODE.
RANGE 0 TO 7
TIME SLOT USED FOR CURRENT CALL.
MS BEHAVIOR MODIFIED:
BELOW TEMS 6.1 S/W IS COMPITABLE WITH INSTRUMENTS (MOBILE) T610

11. # WHAT IS THE DIFF.TYPE OF DRIVE TEST?
THERE ARE NOT SPECIFIC TYPES OF DRIVE BUT WE CAN SAY,
COMPARE DRIVE
MIGRATION DRIVE
ZONAL DRIVE
LET US SEE!
COMPARE DRIVE IS NOTHING BUT WE ARE CHECKING THE COVERAGE OF
OURSELF AS WELLL AS OUR COMPITATER.IT MEANS WE ARE WORKING FOR

12. AIRTEL OK! WHILE WE ARE DOING DRIVE WE ARE SET HUTCH IN ANOTHER
MS AND DO DRIVE.
SEE IN ABOVE TEMS FIG. FIRST TWO MOBILES ARE CONNECTED, THE SAME
WAY WE COMPARE THE COVERAGE OF BOTH PARTY.
MIGRATION DRIVE: LET US CONSIDER THERE ARE TWO MSC .IN FIRST MSC
THERE ARE 25 SITES AND IN ANOTHER MSC 20 SITES .OK!
AFTER SOME TIME THERE IS SOME PROBLE THEN WE SHIFT 2 SITES FROM
FIRST MSC (25) TO SECOND MSC (20).
AFTER THIS EVENT THERE IS NEED OF MIGRATION DRIVE .IT MEANS WHEN
THERE IS SOME CHANGES IN SITE DISTRIBUTION OF BSC NEED OF ZONAL
DRIVE.
WHAT PRECACATION NEED TO TAKE DURING THIS DRIVE?
LISTEN IN ABOVE PROCEDURE THEIR IS CHANGES IN LOCATIOIN SO WE
HAVE ALWAYS TAKE CARE WHILE LOCATION AREA UPDATE AND HANDOVER
IS CORRECT OR NOT .AS WELL AS WE TAKE CARE OF CGI, BSC, HO.
ZONAL DRIVE IT IS NOTHING BUT THE YOUR COVERAGE AREA IS DIVIDE
INTO ZONE NOTHING ELSE .THIS IS IN HYDRABAD ONLY.
# HOW MANY VERSION TEMS HAVE?
TEMS DATA COLLECTION 6.1.3
TEMS DATA COLLECTION 7.1.1
TEMS DATA
COLLECTION 8.O
# WHAT IS BENCH MARK KIT?
THIS KIT IS NOTHING BUT JUST WE ARE CONNECTING MORE
THEN ONE MS FOR KIT AND NOTHING ELSE.
WE SEE THIS IS IN COMPARE DRIVE.
# WHAT WORK WE HAVE IN BTS?
BTS IS NOT OUR SECTION; WE JUST KNOW THE TRU/TRX, HLT MODE, And
SOME ALARM INDICATOR.
WE HAVE WORK IN BTS SOLVE THE PROBLEM OF CABLE SWAP TO SET BOWN
THE SITE IN LOCAL MODE (HALT MODE) !
BEFOR SET THE SITE IN LOCAL MODE WE MUST MAKE CALL MSC AND TELL
THEM THAT WE ARE DOING THIS!
# HOW SEND THE SITE IN LOCAL MODE?
THERE IS ONE BUTTON (ALSO THERE IS AN INDICATOR BESIDE BUTTON) ON
BTS WHICH WE PUSH BY ALIGNER SLIGHTLY
AFTER COMPLETE OUR WORK WE MUST PRESS IT AGAIN TO EXIT FROM
LOACL MODE.
# WHAT ARE ALARMS IN BTS?

13. THESE ARE THE INDICATOR WHICH IS INIDICATE IN MSC REGARDING TO
THEIR SETTING.
EX.IF DOOR OF BTS IS OPEN THEN IN MSC THERE IS ALARM FOR IT KNOWN
AS DOOR ALARM.
IN SUCH WAY THERE ARE LOTS OF ALARM, VSWR, ETC.
# HOW TO CONFIRM THAT THESE ALARM ARE ACTIVE?
SIMPLY THERE IS INDICATOR IN BTS OR ASK MSC BY DOING CALL IS THEIR
ANY TYPE OF ALARM?
# WHAT WORK WE HAVE IN MSC?
II THERE IS PROBLM IN HANDOVER TAKING THEN WE HAVE TO CALL IN MSC
TO DEFINE NEIGHBOUR.
SIMPLY WE HAVE TO SET SOME PARAMETER OF SITE FROM MSC JUST FOR
CONFIRM ALL PARAMETER IS SET OR NOT WE HAVE TO CALL MSC .EX.NCC
PARAMETER
OR CONFIRM ANY ALARM?
OR CONFIRM IS THAT SITE ON AIR OR NOT?
# WHAT DOES MEANS ON AIR OR NOT?
IT SIMPLY MEANS SITE IS READY TO LAUNCH OR NOT?
# WHAT IS IDLE MODE AND DEDICATED MODE?
SIMPIL IDLE MEANS AIMLESS.WHEN YOUR MOBILE IS NOT HAVING CALL.
DEDICATED: IT MEANS YOUR CALL IS CONTINUE …………………………………..
# WHY WE DO DT IN IDLE MODE AND DEDICATED MODE?
FOR COLLECTING THE DATA.
(SECREAT:IN IDLE MODE WE CANT GET THE QUALITY LEVEL)
SOME TIMES WHILE DOING DT THERE IS CHANCE MISS RX.LEVEL, IF THERE
IS SHADOW ZONE COMING IN OUR PATH.SO THAT LEVEL WE COLLECT IN
IDLE MODE!
WHAT IS SHADOW ZONE?
SIMPLY IT MEANS THERE IS BIG OBSTCLE BETWEEN OUR SITE GSM AND MS.
(OR SIGNAL CANT REACH COMPLETLI CONTINEOUSLY UPTO U R MS)
#WHAT IS SHORT CALL AND LONG CALL?
SHORT CALL: IT IS NOTHING BUT THE CALL CONTINUES FOR ONE OR TWO
MINUTES AND THEN DISCONNEC.
LONG CALL: IT MEANS U R CALL WILL CONTINUE FOR A LONG TOME JUST
FOR ONE OR TWO HOUR.
# WHY WE DO DRIVE IN SHORT AS WELL AS LONG CALL?
FOR CHECKING THE NETWORK PERFORMANCE.

14. IN SHORT CALL WE CHECK THAT OUR NETWORK IS SETUP CALL AS WELL
AS AGAIN CONNECT THE CALL IMMEDIATELY AFTER WE DISCOONECT IT OR
NOT ?
IN THIS WE CHECK CONNECTIVITY OF OUR NETWORK.
OR
THE PURPOSE OF THIS TEST IS TO DETERMINE IF CALL SET-UPS
ARE PERFORMED PROPERLY.
LONG CALL: BUY USING THIS WE TEST BOTH THE NETWORK
COVERAGE AND QUALITY.
IN LONG CALL WE CHECK EITHER OR CALL CONTINEOSLY GOING ON OR
DISCONNECTING? MEANS WE ARE CHECKING CONTINEUTY!
WHAT IS EET?
THE FREQ.PLANNING IS DONE WITH THE ERICSSON ENGINEERING TOOL,
EET.
EACH CELL WAS ASSIGINED FREQ. FROM ONE GROUP.THE GROUP WAS
CHOSEN SO THAT THE FREQ.REUSE PATTERN WAS AS CLOSE TO AN X/YY
REUSE PATTERENAS POSSIBLE.
CO-CHANNEL AND IN ADJUCENT CHANNEL INTEFEREENCE PREDICTIONS
WERE MADE WHEREBY FREQ. WERE BORROWWED FROM OTHER GROUPS SO
THAT THE RISK FOR INTEREFERENCE COULD BE MINIMISED.
# WHAT IS AT?
ACCEPTANCE TEST:
IT IS THE PROCEDURE THATCARRIED OUT AFTER THE INSTALLATION OF A SYSTEM IN
ORDER TO ASSES THAT THE PERFORMANCE OF RADIO NETWORK RELATED ISSUES IS
SATISFACTORYILY COMPERED TO THE COMMITMENTS MADE BY ERICSSON TO
CUSTME(HUTCH/AIRTEL/IDEA /BSNL.)
THAT’S ALL FROM NOW! SEE U IN SECOND PART OF HUNK’S TIPS!