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Mcs in DL_DCI PDU and Mcs in DLSCH_PDU how relate to each other?

+1 vote
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I have observing MCS_1 = 27 and MCS_2 = 27 in DCI_PDU .. But MCS_1 = 6 and MCS_2 = 6 in DLSCH_PDU ? How these relating to each other?

As i understood MCS_1 and MCS_2 in DL_DCI should reflect same in DLSCH_PDU also. But here these are different. Is my understanding is wrong or any decoding issues ? please help

posted Feb 1, 2017 by Chakri

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1 Answer

0 votes

Hi,

Both should be same . or less DCI PDU might be for UL grant, check them properly because DCI and DLSCH will be same configuration for DL grant

answer Feb 1, 2017 by Jaganathan
Similar Questions
+3 votes

Let suppose, for initial transmission MCS=28, this transmission got nack.... for retransmission what should be MCS 27 or something else ???? If retransmission_1 also nacked, what will be next MCS ?

+1 vote

MAC notifies RLC of a transmission opportunity asking for data each TTI. So does RLC respond with multiple PDUs one for each UE (with different RLC SNs for each of the PDU). Or just sends down one PDU (with one RLC SN) having data of all the scheduled UEs?
This same question could be put this way too: Are the RLC SNs assigned independently for each UE or are they assigned by incrementing by 1 every TTI?

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