eMBB-URLLC Multiplexing: A Preference-Based Method of Ensuring eMBB Reliability and Improving Users’ Satisfaction

The 3rd Generation Partnership Project (3GPP) organization has considered Ultra Reliable Low Latency Communications (URLLC)’s low latency requirement and spectrum resources shortage. So it has proposed a multiplexing enhanced Mobile Broad Band (eMBB) and URLLC method based on puncturing. But this multiplexing will cause the loss of eMBB users’ data rate. Therefore, we propose a two-stage eMBB resource allocation scheme and preference-based URLLC resource preemption schemes for bandwidth-sensitive URLLC and time-sensitive URLLC respectively to enhance eMBB reliability. Particularly, we design the comprehensive preference value to provide protection for eMBB users with poor channel conditions and high service requirements during URLLC preemption, thereby improving these users’ satisfaction. Simulation results show the advantages of our proposed scheme.