aveform and other L1 considerations due to higher frequency operation, and in that case the normative work would be left to a later phase of Release 17 or to Release 18. Support for higher frequency bands will then also enable 5G-U (NR-U) operation using frequencies higher than 5 GHz unlicensed operation, covering especially the 60 GHz frequency band. Further, there are more use cases being worked on in 3GPP from the requirements point of view, and areas like pub- lic safety are expected to be worked on after Release 16. IIOT/URLLC work is expected 15 5G Phase 2 and Beyond to continue while NR-Light work will start. Items in the study phase like Non-Terrestrial Networks (NTN) are expected to move toward the normative phase in Release 17. Cov- erage enhancement is also a possible topic to be addressed. 3GPP will conclude the Release 17 package in December 2019, following the discussions started from the 3GPP Release 17 Workshop in June 2019 [16, 17]. The Release 17 timing is given below in Figure 15.12, with the expected finalization by the end of 2021. References 1 Qualcomm, 3GPP TSG Tdoc RP-182878 (2018). New WID on NR-based Access to Unlicensed Spectrum. RAN#82, December 10-13, 2018. 2 3GPP Technical Report, TR 38.889 (2018). Study on NR-based Access to Unlicensed Spectrum. Version 15.0.0, December 2018. 3 Nokia, 3GPP TSG Tdoc R1-1812659 (2018). Evaluation Results for NR-U. RAN WG1 Meeting #95, Spokane, US, November 12-6, 2018. 4 3GPP Technical Report, TR 38.825 (2019). Study on NR Industrial IoT. Version 16.0.0, March 2019. 5 Nokia, 3GPP TSG Tdoc RP-180973 (2018).NR-URLLC for Rel-16: Email discussion summary. RAN#80, June 11-14, 2018. Ericsson, 3GPP TSG Tdoc RP-182138(2018). Study on Channel Modeling for Indoor Industrial Scenarios. RAN#81, September 10-13, 2018. 7 3GPP Technical Report TR 38.901 (2019). Study on channel model for frequencies from 0.5 to 100 GHz. Version 16.0.0, September 2019. 8 Holma, H., Heikkinen, S., Lehtinen, O.-A., and Toskala, A. (2000). Interference con- siderations for the time divis