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SON Server Web KPI Portal 4G DT Analysis Cases Module.pptx
- 1. Best Practices for Network Improvement BSNL TRAINING
- 2. Content SON Server Modules. Use of SON Server for Network Improvement. Use of Intelligent reports in KPI Web Portal. Post Processing Analysis of different Cases observed in 4G DT.
- 3. Self Organized Network (SON) SON is server based zonal tool optimization solution. BSNL procured SON Servers for all four zones in PH VIII.4 project. Few major functions that can be carried out using SON are ANR (Automatic Neighbour Relation): Addition/deletion/update neighbour definition. Coverage Optimization: Optimizing coverage to compensate cell outage/traffic management by adjusting antenna tilt (RET) and power. RF Optimization like SC Reuse, PRACH Optimization, GSM Freq Optimization. Sleeping Cell Resolution & Cross Antenna Detection.
- 4. Self Organized Network (SON) Main Input Requirement:- Accurate site location (Lat-Long) and cell azimuth is the key factor to get best results from SON. SON can operate in Open loop & Close loop In open loop, changes are not directly implemented by SON but it will generate output in a file containing recommended changes. In close loop, SON implements recommended changes automatically.
- 5. Self Organized Network (SON) Important Modules of SON Server ANR – Automatic Neighbour Relationship (Addition/Deletion/Updation) SC (Scrambling code) reuse Module Crossed Antenna Detection Module Cell Outage Compensation Module Sleeping Cell Resolution Module
- 6. ANR Module (Automatic Neighbour Relation) This module defines the neighbour based on available cell data. Select the cells from particular BSC/Region
- 7. ANR Parameter to set before execution Set the Parameters like Evaluation period Inter RAT/ Intra RAT Mode of execution: Open loop/Close loop
- 8. ANR Common Parameter Configuration Select common parameter Config file which contains Distance to be considered for addition/deletion of relation One directional or Bi- directional And default HO parameters
- 9. ANR: Schedule the execution Execution of module can be scheduled for particular time or can be executed immediately
- 10. ANR: Result
- 11. MH Circle ANR Execution summary No of Cells Operated Neighbour relation defined/Modified/ Deleted No of Cells HOSR Improved No of Cells CDR Improved 9852 41925 730 639
- 12. SC (Scrambling code) reuse Module Execution This module detects the SC collision and finds possible SC changes. Select the cells from particular RNC/Region
- 13. SC (Scrambling code) reuse Module Execution Set the Parameters like Start & End of maintenance window: SON execute recommended SC changes during this time window in case of close loop execution. Max collision distance, Tier count, Min HO attempts to detect collision, HO monitor period. Maximum iteration: if set higher than 1, the module will try iterative approach to find better solution Mode of execution: Open loop/Close loop
- 14. Module Select common parameter Config file containing default set parameters.
- 15. SC (Scrambling code) reuse execution result
- 16. Crossed Antenna Detection Module This module detects Crossed Antenna based on HO attempts & Success from/to neighbour cells and Physical data (Lat Long, Azimuth) Select the cells from particular BSC/RNC/Region
- 17. Set the Parameters like Start Period: Period for evaluation of HO with neighbour cells Number of HO success from source cell, Min HO activity, Min defined adjacencies Effective neighbour: Percentage of effective neighbors expected to be in pointing direction of the source cell Crossed Antenna Detection Module execution
- 18. Site name Source cell Destination cell Vendor Technology Confidence ANR518 ANR518UINO8ANR-2_NU_Rasulbldg ANR518UINO8ANR-3_NU_Rasulbldg Nokia UMTS Medium ANR518 ANR518UINO8ANR-3_NU_Rasulbldg ANR518UINO8ANR-2_NU_Rasulbldg Nokia UMTS Medium ANR536 ANR536RINO8ANR-3_NU_Daund Road ANR536RINO8ANR-2_NU_Daund Road Nokia UMTS Medium ANR536 ANR536RINO8ANR-2_NU_Daund Road ANR536RINO8ANR-3_NU_Daund Road Nokia UMTS Medium ANR527 ANR527RNBO8PRR-3_NU_Kadus ANR527RNBO8PRR-2_NU_Kadus Nokia UMTS High ANR527 ANR527RNBO8PRR-2_NU_Kadus ANR527RNBO8PRR-3_NU_Kadus Nokia UMTS High ANR045 ANR045RBSO8RHU-5_NU_DIGRASMPKV ANR045RBSO8RHU-3_NU_DIGRASMPKV Nokia UMTS High ANR045 ANR045RBSO8RHU-3_NU_DIGRASMPKV ANR045RBSO8RHU-5_NU_DIGRASMPKV Nokia UMTS High ANR420 ANR420RBSO8ANR-3_NU_AKOLNER ANR420RBSO8ANR-1_NU_AKOLNER Nokia UMTS Medium ANR420 ANR420RBSO8ANR-1_NU_AKOLNER ANR420RBSO8ANR-3_NU_AKOLNER Nokia UMTS Medium ANR450 ANR450UNBO8ANR-3_NU_SHRIRAMCHAUK ANR450UNBO8ANR-1_NU_SHRIRAMCHAUK Nokia UMTS High ANR450 ANR450UNBO8ANR-1_NU_SHRIRAMCHAUK ANR450UNBO8ANR-3_NU_SHRIRAMCHAUK Nokia UMTS High ANR525 ANR525UTLO8ANR-3_NU_Civil Hudco(Tarakpur Bus Stand) ANR525UTLO8ANR-1_NU_Civil Hudco(Tarakpur Bus Stand) Nokia UMTS High ANR525 ANR525UTLO8ANR-1_NU_Civil Hudco(Tarakpur Bus Stand) ANR525UTLO8ANR-3_NU_Civil Hudco(Tarakpur Bus Stand) Nokia UMTS High Crossed Antenna Detection result Result contain name of cells (Source & Destination) which are crossed. Confidence: Low/Medium/High indicates confirmation level of detected cross antenna.
- 19. Cell Outage Compensation Module This module monitors the target (Adjacent) cells for outage. If outage is detected, modifies the tilt and CPICH power in increasing steps until the cell is active again. If congestion is detected on a compensation cell after mitigation, the mitigation is reduced.
- 20. Cell Outage Compensation execution Set the Parameters like Antenna tilt/TxPower steps Cell reset action request Down time period, Include manual downtime Compensation cell frequency layer: Same frequency or All available frequency Optimization goal: Voice or Data Mode of execution: Open loop/Close loop
- 21. Sleeping Cell Resolution Module This module detects UMTS, LTE cells that are sleeping due to software defects, resets them depending on how long they've been off-air.
- 22. Sleeping Cell Resolution execution Set the Parameters like Number of consecutive detections (15 min interval) before resetting the cell Reset count threshold Reset window start & stop time Mode of execution: Open loop/Close loop
- 23. Sleeping Cell Resolution execution result Cell RNC Region Vendor Resolution AUR269RNBO8SOY-1_NU_MH_Nimbaiti RNC-503 netact1 nsn Requires Cell reset AUR269RNBO8SOY-2_NU_MH_Nimbaiti RNC-503 netact1 nsn Requires Cell reset NND218RNBO8KWT-2_NU_MH_PATODA RNC-503 netact1 nsn Requires Cell reset KAL037UTVO8JAW-2_NU_MH_VIKRAMGAD2 RNC-505 netact1 nsn Requires Cell reset KAL187RNBO8MUR-3_NU_MH_SHIVALE RNC-505 netact1 nsn Requires Cell reset KAL280UINO8BHW-1_NU_MH_Padgha Industries RNC-505 netact1 nsn Requires Cell reset KAL382UINO8VAS-2_NU_MH_Sopara Fata RNC-505 netact1 nsn Requires Cell reset
- 24. SON Benefits To Sum up:- SON serves as a comprehensive solution for optimizing and fine-tuning various aspects of a mobile network, ranging from neighbor relations and coverage to specific RF parameters. This proactive approach helps enhance the overall performance, efficiency, and reliability of the network, ensuring a better user experience.
- 25. KPI Web Portal MH Circle has developed inhouse KPI WEB Portal for network performance monitoring. Multivendor Support:- Includes Nokia, ZTE and Alcatel . Multi Technology Integrated Platform:- Includes Multiple Tech 2G, 3G, 4G and traffic, KPI reports, availability reports are integrated in single portal. Intelligent Reports:- Along with regular KPI reports, intelligent reports are developed to provide deeper insights into network behavior, predict potential issues, and suggest optimization strategies.
- 26. KPI Web Portal
- 27. KPI Web Portal Intelligent reports in KPI Web Portal
- 28. KPI Web Portal BSC_RNC_NAM E MHBANR01N1 SDCCH_CONG 0.21 SSA AHMEDNAGAR AVAILABILITY 100 SITE_ID ANR024 VLR 81 CELL_NAME ANR024CNBO8ANR- 2_NG_MH_BALIKASHRAM FRM_LOSS_% 0.01 LAC 9521 MISS_EDCH_FRMS 14 CELL_ID 26462 PKT_LOSS 0 REMARK Poor HOSR :- Check Neighbour List. Poor HISR :- Check Neighbour List. Radio module Fail:-Check the Hardware Hardware (RRH). %_ABOVE_5KM 8 CDR 2.61 AVG_UE_DIST_KM 1.72 DROP_CALL_C NT 4 NEAREST_SITENAME ANR009CNBO8ANR- NG_MH_CHITALEROAD RTCH_SUCC 153 NEAREST_SITEDIST 0.51 HOSR 89.29 FREQ_FAIL 28 HISR 85.87 FREQ_RRH_FAIL YES RTCH_CONG 0 VSWR NO VSWR SDCCH_DROP 0.12 VSWR_INFO NA Worst CDR Cell Report
- 29. KPI Web Portal Example of Identification of Cell Overshooting using intelligent report
- 30. KPI Web Portal Example of CDR, HOSR Issues due to High frame loss
- 31. KPI Web Portal Linking of Hardware issues with KPI deterioration.
- 32. KPI Web Portal Ping Test from Web Portal Select site from Drop Down Change Packet Size Change Packet Count Submit Ping Result
- 33. Drive Test & Post processing case scenario
- 34. Case 1 – Orientation mismatch
- 35. MEH035:- 1st and 2nd sector both coverage found in same direction, So orientation is different then RF database
- 36. MEH263:- 1st sector coverage (PCI 483) found in opposite direction because of either cable swap or Orientation difference then RF Database
- 37. MEH263:- 2nd sector coverage (PCI 484) found in opposite direction because of either cable swap or Orientation difference then RF Database
- 38. Case 2 – Cable swap
- 39. MEH086:- Cable swap in 1st and 3rd sector
- 40. MEH086:- Cable swap in 1st and 3rd sector
- 41. Case 3 - Poor SINR
- 42. MEH008 & MEH247 :- Very poor SINR between these sites.
- 43. MEH247:- 1st sector coverage (PCI 447)
- 44. MEH247:- 3rd sector coverage (PCI 449)
- 45. MEH155:- Cable swap, No coverage of 2nd sector (PCI 427) found. 1st sector (PCI 426) is overshooting as well
- 46. MEH263:- 2nd sector coverage (PCI 484) found in opposite direction because of either cable swap or Orientation difference then RF Database
- 47. MEH478:- 2nd sector coverage (PCI 478)
- 48. MEH478:- 3rd sector coverage (PCI 479)
- 49. End