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Future wireless networks are convinced to provide flexible and cost-efficientservices via exploiting network slicing techniques. However, it is challengingto configure network slicing systems for bursty ultra-reliable and low latencycommunications (URLLC) service provision due to its stringent requirements onlow packet blocking probability and low codeword error decoding probability. Inthis paper, we propose to orchestrate network resources for a network slicingsystem to guarantee a more reliable bursty URLLC service provision. We re-cutphysical resource blocks (PRBs) and derive the minimum upper bound of bandwidthfor URLLC transmission with a low packet blocking probability. We correlatecoordinated multipoint (CoMP) beamforming with channel uses and derive theminimum upper bound of channel uses for URLLC transmission with a low codeworderror decoding probability. Considering the agreement on converging diverseservices onto shared infrastructures, we further investigate the networkslicing for URLLC and enhanced mobile broadband (eMBB) service multiplexing.Particularly, we formulate the service multiplexing as an optimization problemto maximize the long-term total slice utility. The mitigation of this problemis challenging due to the requirements of future channel information andtackling a two timescale issue. To address the challenges, we develop a jointresource optimization algorithm based on a sample average approximate (SAA)technique and a distributed optimization method with provable performanceguarantees.

How Should I Orchestrate Resources of My Slices for Bursty URLLC Service Provision?