n97 (2300 MHz SUL)

Also referred to as the "UL n40", this supplemental uplink band operates in the 2300 MHz range, from 2300 to 2400 MHz, mirroring the TDDTDD: A wireless communication technique that uses a single frequency band for both transmitting and receiving operations but separates these operations in time. In a TDD system, upstream (transmission from user equipment to base station) and downstream (transmission from base station to user equipment)… n40 spectrum allocation. It is available for use in the Asia-Pacific region, and was introduced in 3GPP Release 17.0 in January 2021.