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Why there is PDCP sequences number even though RLC has? .

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Why there is PDCP sequences number even though RLC has sequence number?is it RLC uses sequence number used for segmantation and PDCP sn used for HO and reestablishment?

posted Aug 14 by Debasis Mohapatra

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1 Answer

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Yes, PDCP SN is used for HO

answer Aug 19 by Sushant Bose
Similar Questions
+3 votes

SN is used for sequence delivery then why do we need two SN in PDCP and RLC?

+2 votes

As RLC layer Seq. numbering is used to keep a track of packets to ARQ and PDCP, then SN should be given to RLC PDU, otherwise how it will happen in case of Segmentation and Re-segmentation?

0 votes

During re-establishment/HO transmitter RLC (NR) will give the information about last succesfull sent SN to PDCP . But in LTE - NR case how does LTE PDCP understands RLC NR status. Do we need to modify the LTE PDCP functionality to interoperable with NR?

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