top button
Flag Notify
    Connect to us
      Facebook Login
      Site Registration

Facebook Login
Site Registration

What is the use of NDI bit in HARQ context?

0 votes

What is the use of NDI bit in HARQ context? If it says new data indicator then why do we need it because ACK or NACK is enough to decide next transmission is new Tx or re-Tx.

posted Jun 2, 2017 by Himani

Share this question
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

0 votes


NDI bit describes whether the received TB is new transmission or re-transmission. If previous NDI and current NDI for the same HARQ process is same then it is re- transmission otherwise new transmission.

answer Jun 8, 2017 by Jaganathan
Similar Questions
0 votes

UE used NDI bit to decide the transmission is new or re transmission .When UE ignores this bit and continue.

0 votes

This is non adaptive transmission , But if we receive ack then why do we need non adaptive transmission?

Contact Us
+91 9880187415
#280, 3rd floor, 5th Main
6th Sector, HSR Layout
Karnataka INDIA.