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LTE: Is the ROHC applicable for MBMS data or not ?

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In case of MBMS services, Does the IP header compression applicable ? If yes then how it is done ?

posted Oct 24, 2016 by Rupam

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1 Answer

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It is taken care by the BMSC node which is entry point for the data transmission. While establishing a particular session between BMSC and MBMS-GW, BMSC may add an optional AVP i.e MBMS-HC-Indicator AVP in the RAR message. The other nodes such as MBMS-GW and eNodeB should not have any concern over header compression.
For these both nodes MBMS-GW and eNodeB, a MBMS session is identified by using GTP DL TEID. After removing the GTP header from the received packet, eNodeB sends the data to lower layer base on SYNC information present in the received message.

answer Nov 13, 2016 by Ganesh Kumar
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