LTE Interview Questions
λ = C/Frequency,
C = 3 X 10 ^8 m/sec
In FDD there will be pair of frequencies assigned in the downlink and uplink directions and hence transmissions from multiple subscribes can happen at the same time but on different frequencies as mentioned.
In TDD, one single frequency will be used at different time instants by multiple subscriber terminals (UEs).
Both frame versions of LTE will have 1 ms sub-frame duration and 0.5 ms slot duration.
LTE is specified in 3GPP release 8 and release 9.
LTE advanced is specified in 3GPP release 10.
The main difference between them is carrier aggregation is introduced in LTE advanced.
Number of antennas supported by MIMO has been increased to 8 in LTE advanced.
Voice services are also planned to provide over wimax and LTE networks using Voice over IP protocols.