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LTE: What type of MCS is being used for MBMS data ?

+4 votes
LTE: What type of MCS is being used for MBMS data ?
posted Apr 17, 2014 by Harshita

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1 Answer

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It is mainly Operator dependent parameter, how they have implemented their MBMS services. How they have targeted the MBMS customer. It was for per user or the guaranteed service or whatever.

MCS used in MBMS

So in precise manned these are the parameters on which the MBMS will select the modulation coding scheme.

For more details i recommend you to read this published paper

answer May 6, 2014 by Hiteshwar Thakur
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One question came out and want to get answer for that just to avoid assumptions what I have.
A multiple MBMS services are being transmitted over the air through eNodeBs belong to one MBSFN Area. Here I considered all the eNodeBs belongs to that particular MBSFN area have maximum six sub frames of a radio frame to broadcast the content and all eNodeBs are doing.
In between some of the eNodeBs belong to same MBSFN Area get congested and out of 6 sub frames only two subframes are being used in those eNodeB.
My first question where exactly things will be affected ?
Another question, MBMS-GW will be sending data in same speed with same SYNC information. Since few eNodeBs are congested then how data will be transmitted ? Segmentation at eNodeB RLC may affect User experience since UE combines the data in MBMS case from all the neighboring eNodeBs and get better result in term of quality.
If one eNodeB is sending data without segmentation and the other one is sending with segmentation then How UE RLC will behave and what will be the user experience ?

Please ignore these question if segmentation and reassembling is not applicable for MBMS data transmission at RLC.