What is the multiple access techniques does LTE system use in DL and UL ?

Orthogonal Frequency Division Multiple Access (OFDMA) meaning several carriers carrying data independantly of each other and not interfering with each other. Bits or frames lost over a particular carrier can be recovered by forward error correction and/or retransmission.

LTE uses OFDMA in Downlink and SC-FDMA in Uplink

LTE in DL  used OFDMA  .LTE in UL used SC-FDMA

FDMA-Frequency division multiple access technique

 LTE OFDMA used in DL 

 LTE  SCFDMA used in UL

OFDMA in down link signal 

SC FDMA in up link signal

OFDMA : Orthogonal Frequency-Division Multiple Access 

SC FDMA : Signal-carrier Frequency-Division Multiple Access

in LTE, OFDMA technology is used in DL whereas SCFDMA is used in UL

GMDSS ا

OFDMA in DL and SCFDMA in UL

LTE system use in DL OFDMA and UL SC-FDMA

OFDMA for DL & SC-FDMA for UL