LTE Band 38 operates in the 2600 MHz spectrum and is commonly referred to as the IMT Extension Gap band. Configured for Time Division Duplexing (TDD), it utilises a singular frequency range to handle both uplink and downlink communications, distinguishing them by allocated time slots.
Its positioning within the 2600 MHz range has historical significance, particularly with the transition of services from WiMAX to LTE. As operators globally sought to refarm the 2.5 GHz WiMAX services, Band 38 emerged as a popular choice to facilitate this transition to LTE. This refarming process aimed to capitalise on the existing infrastructure and spectrum assets, while simultaneously meeting the growing demand for LTE services and improving spectral efficiency.