What could throttle LTE throughput when we do drive test in an area where we don’t have 5G coverage but handset is on 5G enable mode.I believe handset keep measuring for b1 but what is the remedy for that ? What is the parameter that we could play with ?
Vendor is nokia.
This is simply because UE is going to do measurement gap to perform 5G measurements (related to B1 event) and as there is no 5G coverage this will continue for a long time, this will affect the 4G throughput badly as during measurement gap, no data is transmitted to the UE.
Based on each vendor there is a feature (Configurable Measurement Period for B1) that can limit this degraded throughput on LTE. You can configure LTE only cells to have low measurement period for B1 and high penalty period. ie, 6 seconds measurement period for B1, and penalty of 30 seconds.