Difference between TD-LTE and FD-LTE

Question

Any good and small article, Google has a lot of fragmented material.

Answer 1

FD-LTE uses frequency division duplex or 'paired spectrum'. The uplink is on band (say 10MHz wide at 2.200GHz) and the paired downlink is another 10MHz at a separated frequency (eg 2.400GHz) This is sometimes called 10+10. It is symmetric and uses two frequencies one up, one down.

TD-LTE is Time division. It has one frequency band, and switches between up and down in turn based on the runtime requirement