EXPERIMENTAL ANALYSIS OF RSRP AND RSRQ IN DENSE URBAN DEEP INDOOR SCENARIOS

This study experimentally investigates, Long-Term Evaluation (LTE) performance in a deep indoor dense urban environment, focusing on Reference Signal Received Power (RSRP) and Reference Signal Received Quality (RSRQ). Measurements were taken on a live LTE network operating on Band DCS1800 (EARFCN 1750) with a 20 MHz bandwidth. The main serving sites, Site-A and Site-B, significantly influenced basement signal reception. Site-A used a CNNPX303F antenna (gain 11.7 dBi, 68° horizontal and 23° vertical beamwidths, 46 dBm downlink, 23 dBm uplink, 25 m height). Before optimization, an azimuth of 350° and high RET (100°) produced weak RSRP (−115 dBm) and unstable RSRQ (−14 dB). After realigning Site-A to 30° and reducing Site-B’s RET to 50°, RSRP improved by 6–10 dB over the 15 m path, while RSRQ showed limited gains due to interference. The findings reveal that azimuth and tilt optimization enhance RSRP but remain insufficient for RSRQ stability without effective interference-management strategies.