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LiFi is a wireless technology that uses light rather than radio frequencies to transmit data. By harnessing the light spectrum, LiFi is thought by some to unleash faster, more reliable, and more secure wireless communications 
compared to conventional technologies such as WiFi and 5G. LiFi can replace cables with short-range optical wireless links and connect numerous sensors and actuators to the Internet.
The new IEEE 802.11bb standard amendment specifies modifications to existing physical layers (PHYs) and the medium access control layer (MAC) that enable transparent operation of IEEE 802.11 over the wireless light medium. This amendment specifies PHYs that provide bidirectional operations in 800 nm to 1000 nm band, achieve a minimum and maximum throughput of 10 Mb/s and 9.6 Gb/s, respectively, as measured at the MAC data service access point (SAP), and facilitate interoperability among solid state light sources with different modulation bandwidths.
The standard marks a significant milestone by providing a globally recognized framework for deployment of LiFi technology, paving the way for the interoperability of LiFi systems with complementary and integrated WiFi networks and allowing time LiFi solutions to operate inside the WiFi ecosystem.
The purpose of this standard is to provide wireless connectivity for fixed, portable, and moving stations within a local area. This standard also offers regulatory bodies a means of standardizing access to one or more frequency bands for the purpose of local area communication.
Further information on the standards release is available at IEEE.