3G Drive Test Procedure_ By Md Joynal Abaden@ MYM
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The document outlines procedures for performing a 3G drive test including using tools like a laptop, smart phones, and GPS to collect data using TEMS Investigation software. It describes performing different types of tests like site verification, rigging audits, and cluster drive tests to optimize coverage, identify problems, and ensure performance metrics are met. The cluster drive tests analyze data to find problematic areas with issues like low signal strength, signal dominance from multiple sites, or high pilot pollution.
3G Drive Test Procedure_ By Md Joynal Abaden@ MYM
- 2. Contents 1 Introduction 2 Drive test tools 3 Drive test type 4 Site Verification 5 Rigging Audit 6 Cluster Drive Test Optimization
- 3. Introduction: Objectives: The purpose of the drive test to perform the RF design verification, identify any coverage and quality problems to optimise WCDMA network performance. At this stage, the main focus is on fundamental end-to-end service accessibility target (e.g. Calls set up and drop rates) and on performance targets such as coverage related targets (such as CPICH RSCP and CPICH Ec/No), and HSDPA/HSUPA speed performance. For this case it was needed each other from drive test data collection and also Physical site changes like tilting, antenna orientation and antenna height. RF Solution Department
- 4. Drive Test Tools: Hardware: • 1x Laptop • 2x/3x/4x Smart Phones (2G/3G/LTE) • 1x FDD Data Dongle (should be supporting 3G 42M) • 1x GPS (G-Star IV) • 1x Car DC/AC Inverter • 1x Car. • 4x SIM Cards (Data & Normal) Software: • TEMS Investigation 16.1 • Map Tools (Map Info & Google Earth) • Cell File • Actix 5.0.1 RF Solution Department
- 5. Drive Test Type Site Verification Individual cell verification test : To investigate detail of site performance by checking all single sectors with AMR call and Throughput test. In addition also required to perform small area dedicated test for Intra/Intercell HO. Cluster Optimization Normal Drive To frame the potential area of the new site planned. Also to improve the important neighboring sites for which the handover to be defined. Cluster Optimization Dedicated Drive Performed call to the test number and drive to the potential area given to determine i) call set up time ii) call set up success iii) drop call iv) SHO v) HSDPA ( Average & Maximum) Speed vi) Coverage Status ( Technology) vii) Pilot polution RF Solution Department
- 6. When the site is completely integrated, Drive tester team will start to perform site investigation. The detail sub-activities are outlined below: 1. Rigging Audit 2. Site Verification 3. Site corrective action (cross feeder, inconsistent data, functionality problem, etc.) 4. Acceptance Test The site has been built and integrated as planned and that the planned coverage has been achieved Site Verification: RF Solution Department
- 7. All Tests Clear? Corrective Actions No Yes New On Air Site Flow New Site Integration 1. Consistency Check 2. Rigging Audit 3. Site Verification Site Acceptance Site Verification: RF Solution Department
- 8. • Voice/vedio calls • Verify on per cell basis for all carriers: • RSCP • EC/No • Scrambling Code • LAC / RAC • Cell ID • Etc. • Frequency • Data / Throughput test • HSDPA and HSUPA / Internet Browsing • Verify on per cell basis for all carriers: • RSCP • EC/No • Scrambling Code • LAC / RAC • Cell ID • Max/Ave Speed • Etc. Site Verification: RF Solution Department
- 9. Static test (Per Sector / Cell) At the best radio location required to perform for all carriers 1. Voice call to determine if any call failure or block calls 2. Video call to determine if any call failure or block calls 3. Throughput R99/ HSDPA/HSUPA/Latency test using http / fttp and speed test. 4. Internet browsing successful 5. SMS Mobility Test 1. Scanning the CPICH BY 3 MS (Lock by 3 Frequency as F1, F2, F3) & S4 Modem or Data Card DC HSDPA by Downloading High volume of Data 2. Long Call use by 3 MS (Lock by 3 Frequency as F1, F2, F3) MS4 Modem or Data Card Lock F1, HSDPA by Downloading High volume of Data 3. Idle use by 3 MS (Lock by 3 Frequency as F1, F2, F3) MS4 Modem or Data Card Lock F2, HSUPA by Downloading High volume of Data. 4. MS1 Lock F1 Short Call & MS2 Modem or Data Card DC HSDPA by Downloading High volume of Data 5. MS1 Lock F2 Short Call & MS2 Modem or Data Card DC HSUPA by Downloading High volume of Data Site Verification: RF Solution Department
- 10. Rigging Audit Test Items in Rigging Audit: Antenna Installation Verification - Azimuth - Height - Location - Cross-feeder/s Rigging Tools : - Safety Belt - Compass - GPS - Measurement tape - Digital Inclinometer Site Audit required from the Rigger 1. Panoramic photos surrounding sites including antenna sectors/objective area 2. Ensure no blocking sectors from the main beam antenna 3. Antenna mechanical/electrical tilt was in correct value 4. Antenna was in correct orientation for the objective/target area 5. Site Height 6. Site Coordinates RF Solution Department
- 11. • Cluster Definition, Site Information Data and Site Location Map • With Site/Cell ID, Site name, Primary SC, Neighbor list, RNC ID and Cluster border highlighted • Prepare Route Map for Drive Testing • Perform drive test either Idle mode or Dedicated mode • Identify Problematic Areas • The result from the data will showing of Network performance such as 1. Drop call rate 2. Accessibility – mobile originated/terminated call set up success rate 3. Coverage – RSCP and Ec/No Cluster Drive test Optimization: RF Solution Department
- 12. Cluster Drive test Optimization: RF Solution Department
- 13. • The area which doesn't meet the criteria below is defined as "Problematic Area“ • Coverage Problem Area • Dominance Problem Area • Pilot Pollution Best Server’s CPICH RSCP < - 99 dBm Best Server’s CPICH Ec/No < -14 dB 4th Best Server’s CPICH RSCP > - 99 dBm Cluster Drive test Optimisation: RF Solution Department
- 14. Thank You