Will ENB sends 4 ack/nack or how this will be handled?
if TTI Bundling is enable then UE send the 4 packets with diffrent RV (4 consicutine TTIs), in case eNB is not able to decode any of them it will send NACK in PHICH once and than UE will send the data again with 4 RV in consicutive TTIs.
In normal case HARQ re- transmission will be 4 in UL, But What should be the ideal value if TTI bundling is enabled?
If ENB detects it as NACK then How UE re transmit in TTI bundling. What is the RTT time for TTI bundling. What RV should UE use for TTI bundling re transmission .,
Is TTI bundling enabled by default or on a specific condition enabled ?