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

Delman  Ali Ahmed; Sara  Azad Ahmed; Diyari  Abdalkhaliq Hassan

doi:10.25098/9.2.30

Authors

Delman Ali Ahmed Computer science Department, komar University of Science and Technology, Sulaimani, Iraq
Sara Azad Ahmed Computer Engineering Department, Komar University of Science and Technology, Sulaimani, Iraq
Diyari Abdalkhaliq Hassan Faculty of Engineering & Computer Science, Qaiwan International University, Sulaimani, Iraq

DOI:

https://doi.org/10.25098/9.2.30

Keywords:

Reference Signal Received Power , Reference Signal Received Quality, Long-Term Evaluation, indoor coverage, interference, optimization

Abstract

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.

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