top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

LTE: How does channel quality indicator value impact downlink and uplink resource scheduling for an UE ?

+1 vote
1,068 views

I don't know the complete use of CQI at eNodeB. Does it impact only downlink scheduling parameters or also considered while granting uplink resources ?

posted Sep 1, 2016 by Ganesh

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

1 Answer

0 votes

Hi ganesh,

CQI is only for the DL Data transmission. For UL MCS selecton eithere we should use SRS or CQI calculation based on SINR which is recieved in UL Data from PHY. You cant take a decision based on DL CQI.

answer Sep 1, 2016 by Jaganathan
Similar Questions
0 votes

As i know two type of CQI in lte, sub band CQI and wide band CQI. I wide band CQI it sends channel quality for whole bandwidth but in case of sub band CQI how UE calculates CQI?

+3 votes

How the CQI reporting period and the DL throughput are related?

The lower CQI reporting period, the better link adaptation, so better Modulation and Coding Scheme (MCS) assignment and higher throughput?

If this is true, the best option should be to set CQI-PMI-ConfigIndex to lower values, am I right?

CQI-PMI = Channel Quality Indicator - PreCoding-matrix-Indicator.

0 votes

When an UE completes cell search procedure, it has to monitor its link to eNodeB. How it does and what are the component or layers involved for this activity ?

+4 votes

Actually there are three resource allocation types being used to allocate resources to UE(s) in downlink and uplink. For downlink all three (Type 0, 1 and 2) used but for uplink only resource allocation type 2 is being used.

...