Holma, H. and Toskala, A. (2011). LTE for UMTS: Evolution to LTE-Advanced, 2e. Wiley. 9 IETF RFC 8325, Mapping DiffServ to IEEE 802.11 February 2018. 10 Zhang, N., Zhang, S., Wu, S. et al. (2016). Beyond Coexistence: Traffic Steering in LTE Networks With Unlicensed Bands. IEEE Wireless Communications 23 (6,): 40-46. 11 MulteFire Alliance, https://www.multefire.org, accessed in May 2018. 12 ITU-R Recommendation M.2083.0, IMT Vision - Framework and Overall Objectives of the Future Development of IMT for 2020 and Beyond, September 2015. 5 QoS for Mobile Ultra-Broadband 13 ITU-T Recommendation Y.3101, Requirements of the IMT-2020 Network, January 2018. 14 ITU Recommendation Y.3100, Terms and Definitions for IMT-2020 Network, September 2017. 15 ITU Recommendation Y.3150, High-level Technical Characteristics of Network Soft- warization for IMT-2020, January 2018. 16 ITU Recommendation Y.3130, Requirements of IMT-2020 Fixed Mobile Conver- gence, January 2018. 17 3GPP TS 23.501 V15.1.0, System Architecture for the 5G System; Stage 2 (Release 15), March 2018. 18 3GPP TS 23.503 V15.1.0, Policy and Charging Control Framework for the 5G Sys- tem; Stage 2 (Release 15), March 2018. 19 GSMA, Introducing Spectrum Management, Spectrum Management Series, GSMA, 2017. 20 ETSI TR 103 230 V1.1.1, Fixed Radio Systems; Small cells Microwave Backhauling, January 2018. 21 Huawei, LTE Small Cell V.S. WiFi User Experience, 2013. 22 Ericsson: The 5G Business Potential Industry Digitalization and the Untapped Opportunities for Operators 2017. 23 International Telecommunications Policy Review, 22, 2, June 2015. Services in Fixed and Mobile Ultra-Broadband The main legacy telecommunication services from the twentieth century are telephony and television. In the beginning they were provided via separate networks such as tele- phone networks for telephony (e.g. PSTN/ISDN, PLMN) and broadcast TV networks (for television). However, the convergence of all telecommunication networks onto IP networks has triggered the transition of legacy telephony se