top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

Why do we need TPC command for SRS transmission in NR?

+2 votes
661 views
Why do we need TPC command for SRS transmission in NR?
posted Mar 23, 2018 by Jaganathan

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

1 Answer

+1 vote

As I know, not only in 5G, also in LTE the TPC command is required for SRS transmission.
The sequence is :
TPC control a transmit power of its PUSCH,SRS or PUCCH transmissions.
In power control the closed loop depends on eNodeB providing feedback to the UE in the form of Transmit Power Control (TPC) commands & TPC commands are signaled to the UE via Downlink Control Information (DCI) formats.
example: DCI format 3 & 3A.
Similarly in 5G NR,
DCI Format 2_2 is used for the transmission of TPC commands for PUCCH, PUSCH & Format 2_3 used for SRS transmission.

answer Mar 24, 2018 by Mohit Mohan
Similar Questions
0 votes

Is it mandatory to use same MCS with primary cell in LTE- NR case or can we do adaptive transmission in both the cells?

0 votes

Does NR supports different RAT type in UL . Like RAT0 ,RAT1 etc.

0 votes

This parameter says max no of MSG3 transmission but why this applicable only to SpCell ?

0 votes

because NR MIB is equivalent to LTE SIB? So Which RNTI used for MIB in 5G?

...