  uRLLC and eMBB are two influential services of the emerging 5G cellular
network. Latency and reliability are major concerns for uRLLC applications,
whereas eMBB services claim for the maximum data rates. Owing to the trade-off
among latency, reliability and spectral efficiency, sharing of radio resources
between eMBB and uRLLC services, heads to a challenging scheduling dilemma. In
this paper, we study the co-scheduling problem of eMBB and uRLLC traffic based
upon the puncturing technique. Precisely, we formulate an optimization problem
aiming to maximize the MEAR of eMBB UEs while fulfilling the provisions of the
uRLLC traffic. We decompose the original problem into two sub-problems, namely
scheduling problem of eMBB UEs and uRLLC UEs while prevailing objective
unchanged. Radio resources are scheduled among the eMBB UEs on a time slot
basis, whereas it is handled for uRLLC UEs on a mini-slot basis. Moreover, for
resolving the scheduling issue of eMBB UEs, we use PSUM based algorithm,
whereas the optimal TM is adopted for solving the same problem of uRLLC UEs.
Furthermore, a heuristic algorithm is also provided to solve the first
sub-problem with lower complexity. Finally, the significance of the proposed
approach over other baseline approaches is established through numerical
analysis in terms of the MEAR and fairness scores of the eMBB UEs.
