4G/5G UL Inter-Cell Interference Randomization Feature

4G/5G – DL/UL Inter-Cell Interference Randomization Brief Description and expected benefits:

• When the Cell Load is low; the g-NB.(Scheduler) staggers the resources allocated to adjacent cells as far away from each other as possible in multi-cell networking scenarios.
• Usually the resources allocation will be staggered based on the PCI(i.e Mod3). However vendors can offer different implementation algorithms.
• This reduces interference from neighboring cells to UEs in the local cell and improves downlink system capacity and cell edge UE throughput when the network is moderately or lightly loaded.
• Increases the spectral efficiency, percentage of high-order modulation and coding schemes (MCSs)
• Decreases Service Drop Rate

Testing Recommended Scenarios:

• The network is moderately or lightly loaded. (PRB <40%)
• In heavy load scenarios, this feature may deliver no benefits. However, it does not generate negative results.

How to Evaluate ❓

• Evaluate MCS KPIs.
• DL/UL User and Cell Throughput.
• Average UL Interference.