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What is L2 layer in LTE?

+2 votes
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While in control plane or user plane we are mentioning phy, mac, rlc, pdcp. While mentioning between enb and mme we are mention only L2 why?

posted Feb 8, 2016 by Vakati Abilasn

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1 Answer

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Hello Vakati,

eNodeB and MME has S1 interface and protocol between these two nodes is known as S1-AP.
S1-AP protocol runs over the SCTP protocol and SCTP in turn runs over the IP layer.
IP layer itself is layer 3 protocol .

answer Feb 9, 2016 by Harshita
at enb protocol stack and MME protocol stack why we are mentioning L2?why cant we mention pdcp,rlc,mac
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