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How does the transmission opportunity is notified by MAC and the TB size is being sent over it to AM and UM?

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  1. If DTCH (AM & UM) and DCCH (AM) are being scheduled (Tx opportunity) by MAC, So does 'same TBS is notified' to both entities (AM & UM) after knowing BO from all AM, UM and TM entity or it gets distributed among them?
posted Jan 1, 2019 by Mayur Jivanrao Nakade

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will UE drop the TB or forward it to upper layer.

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As per my knowledge MAC scheduler (Macro ENB) requires at least 400 micro seconds to schedule the UE's ,then How it adopts to 5G

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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.

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