Filter Function or any Other Logic

Dear Experts, 

                  I have a data like this in the Home-Tab:-

in the Output file, I need something like this:-

So, each rnti's can have duplicated Status PDU, by duplicated means two Status PDU for the same rnti Sequentially using the same "rlcCtrlAckSn_"

So , in the Output for each rnti, we need the Count of the spdu-1,spdu-2.....

How the spdu calculated? For say Rnti== 384, if we have Status_PDU on the same rnti and same rlcCtrlAckSn( here 1338 say) just after another( sequentially) then it's spdu-1, if it's using the same rlcCtrlAckSn twice, then it's spdu-2, need to populate the counts of each spdu-x per rnti in the Output.

Attached is the Worksheet.

Thanks & Regards

Anupam Shrivastava