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How UE RLC entity will forward status PDU to SENB in case of DL data?

+1 vote
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In Rel 12 dual connectivity SENB doesn't support UL data path,then how UE will give RLC status PDU to SENB RLC for DL data transmission?

posted Jan 4, 2018 by Jaganathan

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+2 votes

For E.g

RLC polled the status PDU to receiver (polled till seq No . 16 ) and transmits the other sequence PDU (Seq No 17 ..).

But receiver didnt respond the polling PDU , Now transmitter wants to transmit polling PDU again. In this case will transmitter include Polling of Sequence no.16 or the latest sequence number sent after last polling.

+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?

+6 votes

While going through 3GPP 36.322 specification. I saw a routing box inside the figure. Can anyone please explain the uses of it ?

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