B39 (1900 MHz)

The China 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)… 1900 band is a Time-Division Duplex LTE band operating in the 1900 MHz frequency range. Originating from China's unique 1.9 GHz band arrangement, Band 39 was developed to cater to the specific spectrum allocations and needs of the Chinese market. The establishment of Band 39 reflects the nation's strategy to optimise its spectrum assets and ensure compatibility with the global LTE standard while addressing its localised requirements.