Precise Latency Guarantee with Mobility and Handover in 5G and Beyond

Precise end-to-end latency guarantee is predicted to be required by many emerging applications. On the other hand, the network traffic will continue to be dominated by mobile devices. Therefore, the end-to-end latency is composed of the latency incurred in the Internet as well as in the mobile networks. In this paper, we target to address the end-to-end latency guarantee requirement for downlink traffic by leveraging the previously proposed 5G slice namely, Latency Guarantee Service (LGS) slice. The mechanisms and procedures are proposed by taking the compatibility of 5G architecture into consideration. The simulation results show that the downlink flows which are admitted by the LGS slices are verified to satisfy the end-to-end latency constraint consistently.