LTE Protocols & Specifications Tutorial

In Long Term Evolution architecture consists of

1) Mobility Management Entity
2) Serving Gateway
3)  Packet Data Network Gateway
E-UTRAN consists of EnodeB
In LTE Technology ,Data rates is more and Larger Bandwidth and packet-optimized system.

Protocol structure of control plane in between Mobile Equipement and & Mobility Management Entity is shown below;

Figure : user plane between UE and MME

protocol structure in between Mobile Equipement & Packet Data Network Gateway user plane;
GTP-U Protocols user data between eNodeB and the Serving Gateway and also between the Serving Gateway and thePacket Data Network Gateway in the backbone network.

Figure : user plane between the UE and PGW

Figure says that control & user plane protocol stack of the X2 interface;

Figure : control and user plane protocol stack of the X2 interface