Technical Presentation 2: 5G NR-U – ‘Houston, we have a problem here’

3GPP is in the throes of finalizing R16 of their standards, which for the first time will include NR-U, that is 5G in the unlicensed 5GHz band. At this same time, regulatory bodies around the world are actively opening up debate for extending unlicensed access into spectrum above 6GHz, notably as much as 1.2GHz starting at 5.9GHz. The economic importance of this additional spectrum cannot be understated. It does, however, also have some concerning pitfalls, that if not addressed, will result in inefficient use of this valuable resource. We show here theoretical analysis of the 5GHz ETSI regulations as written today with some surprising findings regarding coexistence. The hope is to navigate the regulatory and standardization process to ensure the same mistakes are not made in 6GHz.

Presenter: Timothy Fisher-Jeffes

Biography: Timothy Fisher-Jeffes is a hardware design manager at MediaTek in Woburn, MA. As of late he has been more involved in standardization efforts than hardware architecture, first with channel coding for 5G NR in R15 of 3GPP and then more recently NR-U in R16 of 3GPP. He specializes in channel coding for all 3GPP standards reaching back to W-CDMA, but has also had various aspects of receiver architectures deployed in W-CDMA, TD-SCDMA, LTE and CDMA2000. Tim has worked for MediaTek for 10+ years through a series of acquisitions starting with a start-up in the UK called UbiNetics, his first job out of college. Tim holds a BSc (Hons) in Electrical Engineering from the University of Cape Town, South Africa and a PhD in Control Theory from the University of Cambridge, UK.

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