Case studyTypical scenario · demonstration data5G SA · n78Drive testRF optimization
Degraded 5G throughput on an urban route: three causes, three actions
5G SA drive test, n78 band (100 MHz), 4.5 km urban route, continuous downlink transfer.
Root cause and correction
Root cause
- Overshooting of cell 61, on an elevated site with insufficient tilt: four to five servers overlap and SINR turns negative.
- Faulty RF branch on sector 121: rank stays at 1 despite high SINR.
- Coverage edge of the n78 band along the woods: the uplink budget is exhausted.
Corrective actions
- Electrical tilt of +4° on cell 61 and +2° on sectors 57, 59 and 122
- RF chain check on sector 121 and replacement of the faulty jumper
- Coverage edge referred to the planning team for a densification study