rks for ultra reliable and low latency com- munications. IEEE PIMRC. doi: https://doi.org/10.1109/PIMRC.2017.8292238. 12 3GPP (2019). Multimedia Broadcast/Multicast Service (MBMS); Protocols and codecs. Technical Report 26.3462. 13 Ma, Y., Yuan, D., and Zhang, H. (2006). Fountain codes and applications to reliable wireless broadcast system. 2006 IEEE Information Theory Workshop - ITW '06 Chengdu, October 2006, pp. 66-70. doi: https://doi.org/10.1109/ITW2.2006.323758 14 Parisis, G., Sourlas, V., Katsaros, K. et al. (2016). Efficient content delivery through fountain coding in opportunistic information-centric networks. Computer Communica- tions 100: 12. doi: :https://doi.org/10.1016/j.comcom.2016.12.005. 15 Nielsen, J.J., Liu, R., and Popovski, P. (2018). Ultra-reliable low latency communication using interface diversity. IEEE Transactions on Communications 66 (3): 1322-1334. doi: https://doi.org/10.1109/TCOMM.2017.2771478. 16 Nikaein, N., Marina, M.K., Manickam, S. et al. (2014). OpenAirInterface: a flexible plat- form for 5G research. ACM SIGCOMM Computer Communication Review 44 (5): 33-38. 17 Wang, Y.P.E., Lin, X., Adhikary, A. et al. (2017). A primer on 3GPP narrow- band internet of things. IEEE Communications Magazine 55 (3): 117-123. doi: https://doi.org/10.1109/MCOM.2017.1600510CM. 18 Mountaser, G., Mahmoodi, T., and Simeone, O. (2018). Reliable and low-latency fronthaul for tactile internet applications. IEEE Journal on Selected Areas in Com- munications 36 (11): 2455-2463. doi: https://doi.org/10.1109/JSAC.2018.2872299. Service-Oriented RAN Support of Network Slicing Wei Tan, Feng Han, Yinghao Jin and Chenchen Yang Huawei Technologies Co., Ltd. 12.1 Introduction The era of the fifth generation (5G) of cellular networks is approaching rapidly. The ser- vices foreseen in 5G fall into three typical scenarios: enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC), and massive machine type commu- nications (mMTC) [1]. eMBB focuses on services characterized by high data rates, such