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Why do we have sequence number in RLC and PDCP?

+3 votes
134 views

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

posted Jul 20, 2017 by Himani

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1 Answer

+1 vote

Hi,

as per my understanding , RLC sequence numbers are used to make sure ARQ functionality and sequence delivery to PDCP. PDCP SN is used to make sure of sequence delivery in handover case and other cell switchover scenario.

answer Jul 21, 2017 by Jaganathan
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