Mobility And Reliability In Lte-5g Dual Connectivity Scenarios

We are studying the mobility performance and the associated reliability of dual connectivity (DC) between a Long Term Evolution (LTE) macro layer and a 5G small cell layer in an urban environment. We will observe that the reliability benefits of using basic DC as known from LTE are much smaller than expected. Significant improvements are achieved by introducing advanced extensions, but the residual outage will still not fulfill all the tight ultra-reliability limits in a scenario with meaningful mobility.