Many of the IEEE 802 wireless standards use unlicensed spectrum and hence need to address the issue of coexistence.
Currently the 802.19 WG addresses coexistence between wireless standards under development within IEEE 802.
When a new standard (or amendment to a standard) for an unlicensed wireless network is being developed the working group may develop a Coexistence Assessment (CA) document that is reviewed the IEEE 802.19 WG.
The IEEE Std 802.15.4™ smart utility networking (SUN) frequency shift keying (FSK) physical layer (PHY) is commonly referred to as 802.15.4g in the wireless industry.
Previously, the IEEE 802.19 Working Group produced IEEE Std 802.19.1, published in 2018, which provides radio technology independent methods for network-based coexistence among dissimilar or independently operated networks of unlicensed devices and dissimilar unlicensed devices.