Please go through this: 5G uplink enhancement technology by ZTE - White Paper
But in short, It basically was introduced to improve the poor UL performance of above 3Ghz 5G UL cov limitations.
Please go through this: 5G uplink enhancement technology by ZTE - White Paper
But in short, It basically was introduced to improve the poor UL performance of above 3Ghz 5G UL cov limitations.