User Equipment Based Efficient Protocol to Maximize Throughput in Multi-RAT

Network operators across the globe have planned to deploy 5G services (also known as New Radio - NR) in a non-standalone manner, in which 4G and 5G work together. Operators deploy different bandwidths in different bands based on spectrum availability in the region. There is limited availability of bandwidth for each operator, or sometimes bandwidth availability is not in a continuous range of frequencies but smaller chunks. The mobile devices may have limited Multiple-In Multiple-Out (MIMO) layer support in some bands due to hardware constraints. Due to these reasons, during multi-carrier radio operations, there are situations when UE may not always be in the best configuration by the network for maximum throughput performance. UE will continue to achieve lower throughput if there is no change from the network for the above challenges like non-continuous spectrum availability in multi-carrier and UE’s limited capabilities. To solve the above problem, to the best of our knowledge, this paper, for the first time, proposes a new protocol and call flow to improve the throughput in the user equipment by selecting the best configurations among the determined combinations for higher throughput. With the proposed novel idea, the system can increase throughput by ~16% for EN-DC cases and ~74% for NE-DC cases compared to the conventional method.