Antenna tilts adjustment is the main method to control the coverage and interference. The main goal of tilt optimization exercise is to balance the trade-off between coverage and quality. Coverage is normally assessed through uplink throughput performance and RSRP. In the case where serving RSRP is below the minimum required signal level, this can be classified as a coverage hole. This is often seen in coverage-limited environments such as rural, highway and indoor, here most coverage problems are due to this reason. Up-tilting the antenna is normally done to satisfy or improve the coverage requirements and depending on the adjustment this can have an impact towards the DL-SINR. Antenna up-tilting will create more overlap between the cells and degrade the DL-SINR which consequently degrade the DL throughput in that area.The impact of antenna up-tilting is illustrated in figure below. Figure 7. Antenna up-tilting impactList of options below are example of solution that can be used to overcome coverage problem:1. Control of antenna tilts (antenna up-tilting) 2. Control of azimuthssodfgvsihvgsihrgvpsaidhgf n[E RFwp9eurcb n9U VW9EURTV W