scft procedure v1h
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SCFT Procedure
Prepared by: Samsung
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Course Name: SCFT Procedure
Course Objective
This module will enable participants to understand how to conduct SCFT
Who should attend
RF / DT engineers, Riggers
Morning Session ((.30am to 1:30pm)
Lun
ch b
reak
Afternoon Session (2:30pm to 6pm)
Day 1
Health &Safety
Introduction to SCFT
SCFT Requirements
Preparations for SCFT
Physical Site Check
Drive Test
XCAL Demonstration
Hands on exercises
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Good to know
Keep your mobile phone in the silent mode during the session
Need to sign attendance sheet at the start and end of each day
At the end of each training post test will be conducted
Stick to break timings
Your valuable feedback will be taken at the end to enhance training experience
For logistics support contact the co-ordinator
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Schedule
Day Time Session Topic
Day 1 10.00am to 1.00pm 1st Introduction to SCFT
1.30pm to 6.00pm 2nd Introduction to Smart DM tool
Day 2 10.00am to 1.00pm 1st Introduction to EMF measurement
1.30pm to 6.00pm 2nd EMF measurement in Field
Day 3 10.00am to 1.00pm 1st
Introduction to Cluster Optimization 1.30pm to 6.00pm 2nd
Day 4
10.30am to 1.00pm 1st Field test Practice
1.30pm to 6.00pm 2nd Q&A and Exam
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Agenda Health & Safety Requirements
Introduction to SCFT What is SCFT
Overview of SCFT Process
SCFT Workflow
Roles & Responsibilities
SCFT Requirements Lead time
Tools
Preparations for SCFT TSSR Review
eNB Parameter Review
Drive Route
Checklists
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Agenda (2)
Physical Site Check
Measurements of height, azimuth, tilt
Drive Test
Types of tests
Tools required
Measurements & parameters
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Health & Safety Requirements
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Safety Equipment
Sr. No. Required Tools Photo Use of tools
1 Safety Belts
It is designed to distribute any force applied during a fall throughout the pelvis, thighs, waist, chest and shoulders. It is also used as attachment points for other climbing equipment components.
2 Safety Shoes
Safety Shoe is essential to ensure safe and healthy feet. Steel toe boots and shoes protect your feet, help prevent injuries to them, and reduce the severity of injuries that may occur in the workplace.
3 Hand Gloves Its keeping your hands safe, And its used for grip and dexterity.
4 Helmets Climbing helmets save lives. They are designed to protect your head from falling overhead debris, And they offer protection in the event of a fall.
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Introduction to SCFT
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Single Cell Functional Test (SCFT)
Verification of
Availability and performance of desired services
Physical configuration of the eNodeB for each sector
Correct installation and configuration of the eNodeB
Testing specific services at the site and while driving around the site
((( (((
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SCFT High-level Process SCFT
Preparation for SCFT
Physical checks of eNB site (with EMF survey)
Pass
Drive Test
Pass
Analysis
Pass
EMF Survey
Adjust Antenna Parameter
Yes
No
Submit SCFT report to RJIL
Change system or physical parameter
No
Yes
Yes
Check for HO Fail, Sector Swap,
Coverage issues
No
SOLPAR Scope
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SCFT Workflow
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SCFT Team Composition
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Roles & Responsibilities SOLPAR RF Manager
Daily tracking of progress status
Extend support to circle SCFT Team for their minor & critical issues.
Interact with Samsung on Progress Management: Daily, Weekly, Monthly basis.
SCFT Team Management and site allocation to RF Engineers, Technicians, Riggers & Car drivers.
Validation of drive routes, discussion of issues, site performance analysis
Support field team for troubleshooting and any other support during SCFT activity
Prepare the RF Database and data backup of all drive related tests and provide to Samsung
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Roles & Responsibilities SOLPAR RF Engineer
Fill the checklist as per TSSR data
Extend support to field team for their minor & critical issues
Create the drive routes
Arrange the drive
Track the SCFT of sites allocated
Interact with Samsung on progress management: daily, weekly, monthly basis.
Prepare the checklist
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Roles & Responsibilities SOLPAR DT & Field Engineers
Perform Field Test: DT testing and data collection during - SCFT/Cluster Optimization
Check site information & change Ant. Parameters
Carry all the necessary tools in field
Rigger will check site as per the checklist
Rigger will make corrections on site and inform Drive Test Engineer
Drive Test Engineer will configure the Smart S4 mini as per defined test scenarios
Drive Test Engineer will save the log file. In case of handoff fail, bad RSRP, call drop etc., inform respective teams immediately
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Summary
Strictly follow all the health & safety guidelines
SCFT verifies the availability and desired performance of a site
SCFT involves physical & parameter check of eNodeB, corrections if needed, followed by a drive test around the site
SCFT team consists of an RF engineer, DT engineer, Rigger and Car driver with well-defined roles and responsibilities for all
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Quiz
You find that the antenna azimuth is incorrect. You will _________
Correct it, log and report the error and then proceed with drive test
Proceed with the drive test and report it later
Cancel the drive test
During the drive test, handover fails. You will _______
Continue with the drive test as it is
Report it to the respective team before continuing
Cancel the drive test
EMF survey is conducted by rigger _______
Before the SCFT drive
After completion of the SCFT drive
In parallel with the SCFT drive
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SCFT Requirements
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Tools Required
Sr.No Tool Name Description Specification
1 Vehicle with AC Driving test & power supply Must have cigarette lighter point for
connecting the power inverter
2 Power inverter DC to AC Over 500W
3 Smart phone (with D
M application) Samsung Galaxy Mini S4
Need 2 test mobile phones
- DL, UL and VoLTE test
- SIM card to support from RJIL
- 2 EA Charger
- 2 EA Extra battery (Optional)
- 2 EA Smart phone holder
4 Compass Measurement of antenna azimuth
5 Tilt Measure Measure the antenna tilt
6 Camera Require to capture for antenna pics in
case of any obstruction Over 10.1 Mega Pixel (Over 8GB)
7 Laser meter or measu
ring tape Require to check the antenna height
If using measuring tape, above 50 m
eters
8 Multi tab
(Power extension)
Extension cable for connections of lap
top etc. Over 5 Ports
9 Spanner Adjustable spanner 1 set
10 Tool kit Rigger tool kit, for physical changes 1 set
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UE (Smart phone & Dongle) Testing
Check performance of the smart tool DM at least twice a month, e.g. in the 2nd and 4th week of the month
Check at a location where following coverage criteria are met
RSRP : better than -70dBm
SINR : better than 23 dB
Check based on RF parameters RSRP, SINR, Throughput, MCS, CQI etc
Maintain a detailed sheet to identify the best performing Smart DM tools
Maintain performance check records with history as per the attached sheet
Appendex-Smart DM performance management.xls
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Preparations for SCFT
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Preparations for SCFT
TSSR Review eNB Parameter
Verification from LSM-R
Drive Route Checklist
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Technical Site Survey Report (TSSR)
Site information
Site Name, and Site Address
Site location in terms of LAT/LON
Obstruction detail if any
Antenna parameters
Antenna Type, beam width pattern & gain
Antenna Azimuth, Antenna Height, Tilt
Simulation (Coverage Statistics
RSRP)
Outdoor Analysis of signal strength for outdoor coverage
Indoor Analysis of signal strength for indoor including penetration loss
Worst Area Analysis by Simulation Plot
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TSSR (Continued)
Satellite & Vector maps
Satellite map: Pre analysis for service area. Google earth snapshots of actual locations and populated areas
Vector Map: Refer during drive test.
Site drawing map
eNB installation information such as Antenna Pole Location
Antenna direction in terms of Azimuth
Location of ODU (outdoor unit) or shelter room of eNB
Location of other operator Antenna Pole & Shelter room
Panoramic pictures
DT Engineer will take clutter pictures starting from North- Zero Degree at every 30 Degrees
Helps understand the clutter with respect to antenna azimuth
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TSSR (Continued)
Antenna mounting obstruction & photographs
For each sector, take pictures of the antenna mounting
Check the antenna & pole-mount for free range movement of the antenna, for azimuth adjustment. Show pictures with obstructions if any. Note obstructions in the checklist.
Include pictures of any existing antenna system within 6 m of a proposed antenna mounting location
Take pictures of any major distant blocking structure such as a neighboring building or tower from the antenna point of view (if blockage from sectors point of view is not captured in panoramic photographs)
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Preparations for SCFT
TSSR Review eNB Parameter
Verification from LSM-R
Drive Route Checklist
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Process to Check eNB Parameters
SOLPAR RF manger instructs engineer to collect eNB parameters from LSM-R engineer
SOLPAR RF engineer will act accordingly and request eNB parameters from LSM-R engineer
LSM-R engineer has to prepare eNB parameter data for the site and provide it to SOLPAR RF engineer with SOLPAR RF Manager and Samsung RF circle lead in the loop
SOLPAR RF manager has to keep Samsung circle RF lead in loop for all communication
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eNB Parameters to Check from LSM-R
Service Affecting Alarms
Site down
High drop Rate
Low Tx Power
GPS Alarm
VSWR values
VSWR should be
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eNB Parameters to Check (Contd)
RF Parameters
Handoff Parameters, PCI Parameters, ANR List - Neighbor List.
eNB Installation Information
eNB installation ATP completed
Back Haul
Connectivity
Type of backhaul connectivity like fiber or microwave
Backhaul ATP completed
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eNB Parameter Checklist
ATP1A Data Check List
Site ID Site Name
Address
GPS Lat Lon
Sr.No. eNB Parameter Name Alpha Beta Gamma
1 NEID 2 2 2
2 PCID 1 2 3
3 Cell ID 10001 10002 10003
4 eNB CGI 768 769 770
5 TAC H0002 H0002 H0002
6 EARFCN 38800 38800 38800
7 Antenna Tilt: Electrical from LSM-
R 2 4 2
8 VSWR 0.5 0.5 0.5
9 eNB Tx Power from LSM-R (in dBm
) 37 37 37
10 MIMO Mode (TM3/TM4) from LS
M-R TM3 TM3 TM3
11 MIMO Type (2x2, 4x2) from LSM-R 4x4 4x4 4x4
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Preparations for SCFT
TSSR Review eNB Parameter
Verification from LSM-R
Drive Route Checklist
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Drive Route Basics
All sectors to be covered during the test
Try to cover as large an area as possible around the sites
Carry a hardcopy of the drive route direction
Based on GPS, DT engineer will automatically receive drive route on his drive test tool
Instruct the driver to follow the drive route
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Drive Route Example
Major Road
More than one lane
Important road that leads from one town or city
to another
Minor Road
One lane
A side road may be a narrow street off a
major street
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Preparations for SCFT
TSSR Review eNB Parameter
Verification from LSM-R
Drive Route Checklist
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TSSR Review Checklist
TSSR Review Check List
Site ID
Site
Nam
e
Address
GPS Lat Lon
Sr.No. List Alph
a Beta Gamma
1 Antenna Azimuth 0 120 240
2 Antenna M-Tilt
(Physical measurement) 1 2 3
3 Antenna E-Tilt
(Electrical from LSM-R) 2 2 2
4 Antenna Height 35 35 35
5 Building Height 30 30 30
6 Antenna Make &Model no Verification
ACE
ANT
XXD
W-17-
65i-V
T
ACE
ANT
XXD
W-17-
65i-V
T
ACE ANT
XXDW-17-65i-VT
7 RF layout verification Yes/N
o
Yes/N
o Yes/No
8 Antenna location checkAntenna obstruc
tion check on azimuth & Tilt
Yes/N
o
Yes/N
o Yes/No
9 Panoramic pictures verification Yes/N
o
Yes/N
o Yes/No
10 Obstruction
(if yes, picture require)
Yes/N
o
Yes/N
o Yes/No
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eNB LSM-R Parameter Checklist
eNB Initial Parameter Check List
Site ID Site Name
Address
GPS Lat Lon
Sr.No. eNB Parameter Name Alpha Beta Gamma
1 NEID 2 2 2
2 PCID 1 2 3
3 Cell ID 10001 10002 10003
4 eNB CGI 768 769 770
5 TAC H0002 H000
2 H0002
6 EARFCN 38800 38800 38800
7 Antenna Tilt: Electrical from LSM-R 2 4 2
8 VSWR 0.5 0.5 0.5
9 eNB Tx Power from LSM-R (in dBm) 37 37 37
10 MIMO Mode (TM3/TM4) from LSM-R TM4 TM4 TM4
11 MIMO Type (2x2, 4x2) from LSM-R 4x4 4x4 4x4
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eNB Physical Parameter Checklist
eNB Physical Parameter Check List
Site ID Site Name
Address
GPS Lat Lon
Sr.No. List Alpha Beta Gamma
1 Antenna Azimuth
2 Antenna Azimuth
(Free available range)
3 Tower Height
4 Building Height
5 Antenna M-Tilt
(Physical measurement)
6 Antenna M-Tilt
(Free available range)
7 Antenna E-Tilt
(Electrical from LSM-R)
8 Sector Swap Check
9 Antenna Make &Model no Verification
10 Antenna location checkAntenna obstructio
n check on azimuth & Tilt
11 Backhaul Connectivity
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Check FTP Connectivity
FTP server Connectivity
Check FTP server connectivity before
leaving the site
OK
Proceed to the site
OK
Start testing
Resolved
Contact RJIL/RAN Core team for the resolution
Check FTP server connectivity on site
Yes
Yes No
No
Yes
Yes
SOLPAR RF engineer to has confirm FTP server connectivity before leaving to the site
SOLPAR RF engineer to has confirm FTP server connectivity upon reaching to the site
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Backhaul Connectivity Check
Backhaul Connectivity
Confirm Backhaul stability with LSM-R
OK
Proceed to the site
OK
Start testing
Resolved
Contact concern RJIL for the resolution
Check for Backhaul stability with LSM-R After reaching site
Yes
Yes
No
No
Yes
Yes
SOLPAR RF engineer to has confirm the backhaul stability with LSM-R engineer before leaving to the site
SOLPAR RF engineer to has confirm the backhaul stability with LSM-R engineer upon reaching to the site
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Summary
Perform regular testing of drive-test UEs
Preparations for SCFT consist of TSSR review, eNB parameter verification from LSM-R, availability of drive route and checklists. Before proceeding to the site make sure you have these
TSSR gives details about eNB physical parameters such as antenna height, azimuth, tilt, pictures of obstruction, site drawings and map views
LSM-R parameters include details such as VSWR, Tx power and PCI
Ensure FTP and backhaul connectivity before proceeding to site
Cover all sectors during the drive
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Quiz
VSWR is obtained from the _________
TSSR
LSM-R
Either
The following must be checked before proceeding to site
FTP and Backhaul Connectivity
Availability of drive route
Both
SCFT for one site takes _______ hours
4
6
8
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Physical Checks at Site
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Measuring Site Co-ordinates Check the battery of GPS (72 channel GPS)
Point GPS towards clear, open skies for accuracy
GPS Setting time >5 min & GPS number of satellites > 4
Low Battery voltages and rare Geomagnetic storms may result in erroneous GPS readings
GPS should not be used for Ground Elevation readings as the inaccuracy can be well over 30m
Stand in the center of the site location (GBM, RTT,RTP)
Once the satellites are acquired, note co-ordinates for N & W in degree - decimal format.
Update this information into check list for pre-post comparison and for database tracking
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Checking Antenna Azimuth
Stand in front of the Antenna
When taking compass readings, keep at least 8m distance from any magnetic, metal, or current carrying structures such as towers, vehicles, or cables for correct readings
Open compass and wait a moment till the compass needle is stationary
Check the antenna azimuth with reference to North & measure the value in degrees
Compare the observed value with the one in the TSSR
In case a mismatch is detected, make corrections on site
Mention the values in the check list for pre-post comparison and for database tracking
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Check Azimuth marking on map
Check the service direction of the antenna
Mark the main serving direction of the antenna on the map
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Tower Height Measurement Laser Meter
Stand on the edge of tower
Press start button and then press measure button
Wait for 2-3 minutes or check the ground or building from the built-in binoculars in the laser meter
Press the measure button again
Take pictures of the value in meters
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Tower Height Measurement - Tape
Drop the measuring tape from the edge of the tower platform
Team member at the ground end will record the value
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Antenna Height RTP / RTT
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Antenna Height GBT / GBM
Compare the value on TSSR with actual result
Correct the Antenna Height if mismatch with TSSR Report
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Antenna Mechanical Tilt Measurement
Bring tilt measure in contact with antenna on the back side & center()
Adjust the tilt measure () to level off ()
Check tilt of antenna (), as per the picture red line is on 3rd mark from zero, which means that the tilt is 6 degrees {one mark = 2 degree and consider the bottom scale}
Compare the value on TSSR with actual result
Correct the Mechanical Tilt in case of mismatch with the TSSR Report
Mention the values into check list for pre-post comparison and for database tracking
To change tilt, loosen all nuts, adjust tilt as desired and then tighten them
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Drive Test
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SCFT Drive: Stationary & Moving Tests
FTP Download
FTP Upload
Ping Test
VoLTE call
Stationary Test
(for each sector)
FTP Download (UE 1 long call)
FTP Upload (UE 2 long call)
Clockwise & anti-clockwise drive around the site
Moving Test
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Drive Test Rules
Start field test upon completion of eNB parameter verification and after implementation of any required changes
All three sectors of the eNB under the test should be active and without any artificial loading (e.g. OCNS) in all tests
Conduct the test for all sectors of a site
Cover all important roads
Conduct SCFT drive test till RSRP of -108 dBm
In case of call drop, handover failure, etc. stop the call and find out the probable cause before proceeding further
Possible problems that may arise during drive test: UE disconnection, GPS problems, FTP server issues
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SCFT Drive Test Tools Required
2 Samsung S4 mini phones with XCAL application
2 mobile phone holders
Battery charger
Extra batteries
USB hub
Inverter
Vehicle
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Field Issues
If the drive test fails, check the system parameters & check the alarms from LSM-R
Check the DM and connect again, perform the test
Check the FTP server: Capture detailed information like ping, call test and call the server engineer
Repeat the field test if alarms clear from LSM-R and DM kit is working fine
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Ping Test
Ensure that the UE is successfully attached to the LTE network
Run Ping script/scenario in your Smartphone DM software
Stop the logging
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DL Throughput
Ensure that the UE is successfully attached to the LTE network
Run FTP DL script/scenario in your Smartphone DM software
Verify that RSRP > -80 dBm, RS SINR > 20 dB
Start an FTP download with a file of size 50MB with a single FTP thread
Verify that the file has been downloaded successfully, record the throughput and stop the logging
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UL Throughput
Ensure that the UE is successfully attached to the LTE network
Run FTP UL script/scenario in your Smartphone DM software
Verify that RSRP > -80 dBm, RS SINR > 20 dB
Start an FTP upload with file of size 25MB with a single FTP thread
Verify that the file has been uploaded successfully, record the throughput and stop the logging
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Cell Coverage & Handover Verification
Ensure that the UE is successfully attached to the LTE network
For UE1, run FTP DL script/scenario in your Smartphone DM software
For UE2, run FTP UL script/scenario in your Smartphone DM software
Do the drive test around the site, clock-wise and anti-clock-wise to check both way Intra-handover
If no proper route is available for checking Intra-handover, do a walk test around the site
Drive test for each sector is mandatory to check the coverage of cells and Inter handover with neighbor cells
If there is any issue related to access (e.g. construction, road closed) please provide proper justification with snapshot (Date and time should be mentioned on Photo)
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Sector Swap Verification
After Physical site parameter verification, conduct drive test in clock wise and anti-clock wise direction to identify any sector swap
If found, take corrective action before going for coverage drive test
If service-direction of PCID has changed, Data Throughput degradation and Handover Fail can be observed
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SCFT Parameter Requirements
Min Average Max
DL Throughput 2 Mbps 20 Mbps 40 Mbps
UL Throughput 256 Kbps -- 4 Mbps
RSRP -108 dBm -- --
SINR 20 dB -- --
Legend
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Summary
eNB physical check involves checking azimuth (note free range), tilt, antenna height, tower height
SCFT consists of stationary and moving tests
Stationary tests include ping, UL & DL throughput and VoLTE connectivity check
Drive around the site clockwise & anti-clockwise for moving tests
Especially check for sector swap using PCI
Ensure RSRP, throughput and SINR ranges are met
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Quiz
Average DL throughput should be at least ____
4 Mbps
20 Mbps
40 Mbps
Sector swap can be identified based on
PCI
RSRP
VSWR
Moving test in SCFT does not include
FTP
VoLTE
Either
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XCAL on S4 Mini
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Steps for DM Tool (XCAL)
Power on
Ensure mobile is not in flight mode. If it is, switch flight mode off
Confirm data and voice connectivity
Ensure GPS connectivity is locked (steady, not blinking)
Bluetooth pairing of S4 minis
Launch XCAL from apps
Ensure XCAL GPS is in sync with mobile GPS and locked (steady, not blinking)
Configure Master / Slave
Click Destination: Get GPS location
Download appropriate scenarios for Master & Slave
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Step 1 Switch off Flight Mode
Ensure mobile is not in flight mode. If it is, switch flight mode off
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Step 2 Check Data Connectivity
Ensure horizontal green and red arrows (data) and vertical 4G arrows (voice) are visible
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Step 3 Bluetooth Pairing of S4 minis
Name the S4 minis
Go to Bluetooth Settings Rename
This will ensure pairing without confusion
This is just a one-time activity
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Step 3 Bluetooth Pairing of S4 minis
To ensure smooth Bluetooth functioning remove previous pairing
Press and hold the Bluetooth icon
Go to Settings Unpair
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Step 3 Bluetooth Pairing of S4 minis
Make all the phones Visible to each other over Bluetooth
Press Scan on a device
The other visible devices will show under Available devices
Press on an Available device
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Step 3 Bluetooth Pairing of S4 minis
Bluetooth pairing request window appears on both devices
Press OK on both devices
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Step 3 Bluetooth Pairing of S4 minis
Devices will now show as Paired
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Step 3 Bluetooth Pairing of S4 minis
Devices will now show as Paired
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Step 4 Launch XCAL from Apps
Launch XCAL from apps
Make sure XCAL GPS is steady green, i.e., synced to S4 mini GPS and locked
-
Step 5 Configure Master & Slave
Press the Menu button on the S4 mini
Press the M/S button in XCAL
Select Master for one UE and Slave for another
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Step 6 Select GPS Location
Press Destination: GPS Value
The GPS location will be shown
Select the destination and click Back on the S4 mini
The lat-long value will now appear on the main screen
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