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LTE MBMS: Does MIMO use for eMBMS ?

+1 vote
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LTE MBMS: Does MIMO use for eMBMS ?
posted Aug 8, 2014 by Ganesh

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1 Answer

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Not sure, but I think MIMO is not required for eMBMS data. The reason behind that MBMS data is scheduled for a group of users and not necessary all the users within a MBMS synchronization area support MIMO.

But looking for other to respond.

answer Aug 8, 2014 by Vimal Kumar Mishra
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+3 votes

What are all nodes involve for charging an eMBMS ? I am bit confused here.
In LTE point to point services, per UE uses information send from PCEF to OFCS or OCS. What about point to multipoint services?

0 votes

In case of UE specific data transmission MAC layer allocates radio resources on dynamic basis. When we say dynamic resource allocation it means in each TTI (subframe) different amount of data is sent over the over considering various factor QCI, amount of data buffered at RLC and available radio resource.
What about the MBMS data transmission. MBSFN subrames are fixed in radio frame for the MBMS data transmission. Is there really need of any dynamic resources allocation for the MBMS data comes from RLC layer or it is persistent since required modulation and coding other parameters are already known at the time of bearer establishment and these parameters does not change throughout the data transmission of MBMS data.

+1 vote

MBMS Data receives from MBMS-GW to eNodeB module interfacing towards MBMS-GW. It removes GTP-U header and sends data to lower layer i.e RLC. As per my understanding so far, RLC does segmentation and re-assembling for the received upper layer PDU to make it fit into MAC PDU. Now I want to know, Does the same concept applicable for MBMS data also or for RLC it is transparent mode transmission.

Which format is used by RLC for the MBMS transmission ?

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