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AmpLink Rx 1900e GSM Field Trial

AmpLink Rx 1900e GSM Field Trial. St. Louis, MO September 21 st , 2004. Contents. Trial Area and Site Description Trial Timeline of Events AmpLink 1900e – Nokia Interconnect Network Statistics Drive Data Analysis Trial Summary Next Steps. AmpLink Rx 1900e. Trial Area.

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AmpLink Rx 1900e GSM Field Trial

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  1. AmpLink Rx 1900e GSM Field Trial St. Louis, MO September 21st, 2004 STI Proprietary 1

  2. Contents • Trial Area and Site Description • Trial Timeline of Events • AmpLink 1900e – Nokia Interconnect • Network Statistics • Drive Data Analysis • Trial Summary • Next Steps . . . AmpLink Rx 1900e STI Proprietary 2

  3. Trial Area • Located in North St. Louis • Sub-Urban Morphology • Average Cell Radius 1 mile STI Proprietary 3

  4. Trial Area Detailed View Trial Site STI Proprietary 4

  5. Trial Site Details • Site Name: MO-03-730 • Site Coordinates: 38 48 40.48N 90 19 52.17W • Tower Height: ~ 130 feet • Coax Length: ~ 150 feet • Coax Size: 1 ¼” Diameter STI Proprietary 5

  6. Trial Timeline STI Proprietary 6

  7. Trial Timeline • August 9th Pre-Meeting and Site walk • August 16th Installation Week • August 24th Collect pre-drive data Install Amplink 1900e and pre-stage cables during day Cutover Amplink 1900e during Maintenance Hours • September 8th Collect post-drive data, (same day same time as Pre Drive) • September 21st Analysis Completed and Presented STI Proprietary 7

  8. Amplink 1900e Integration STI Proprietary 8

  9. Amplink 1900e Integration STI Proprietary 9

  10. Network Statistics STI Proprietary 10

  11. Network Statistics • Statistic collected by Operator and provided to STI • 2 weeks Prior and Post deployment analyzed • Weekends INCLUDED in the analysis • Labor Day removed from analysis • Pre Data: August 11th to 24th • Post Data: August 25th to September 8th • * Analysis method determined by Network Operator STI Proprietary 11

  12. MOUs / Drop per Sector The Statistics All Sectors achieved a higher MOU/Drop value with AmpLink 1900e. Alpha and Beta sectors are now above acceptable limit of 153 MOUs/Drop. STI Proprietary 12

  13. Drop Calls per Sector The Statistics All Sectors indicate an average 50% reduction in the number of Drop Calls. STI Proprietary 13

  14. Uplink Quality per Sector The Statistics Uplink quality / BER on all sectors reduced by 20% with AmpLink 1900e. STI Proprietary 14

  15. Downlink Quality per Sector The Statistics As expected the Downlink quality on all sectors was unchanged by the class-leading low insertion loss of the AmpLink 1900e. STI Proprietary 15

  16. Handovers due to Quality per Sector The Statistics HO Qual was improved by 20% on all sectors with AmpLink 1900e. STI Proprietary 16

  17. In-Bound Handover Fails per Sector The Statistics All Sectors achieved a lower IHO Failure rate. STI Proprietary 17

  18. Drive Data Analysis STI Proprietary 18

  19. Best Server BCCH Map Before After As expected, no change in best server coverage. STI Proprietary 19

  20. MS TX Power dBm Before After Before the Amplink installation, drive data indicates T730 has uplink problems compared to adjacent sites. Amplink’s sensitivity improvement corrects the problem. STI Proprietary 20

  21. Downlink Coverage Site T730 Only Before After As expected, no change in downlink RSSI. STI Proprietary 21

  22. MS Tx Power dBm Site T730 Only Before After Drive data is trimmed above to clearly show the uplink improvement to T730 is in all sectors. Adjacent site data points removed (i.e. Trimmed by Best Server). STI Proprietary 22

  23. MS Tx Power Improvement Grid Statistics Before / After Before and After Drive data is averaged into grids and then compared to calculated the Delta in MS Tx Power. STI Proprietary 23

  24. Trial Summary STI Proprietary 24

  25. Trial Summary Statistic Improvement • MOUs/Drop Over 60% increase on all sectors • # of Drop Calls Reduced by 50% • Uplink Quality Improved by at least 20% • Downlink Quality As expected, un-changed • HO Qual Reduced by 20% • MS Tx Power Lowered by more than 10 dB Amplink 1900e is a Success ! STI Proprietary 25

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