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LTE protocols and interfaces?

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What are the various protocols used at each interface, please summarize as I am newbie to LTE, it would be helpful.

posted Nov 25, 2013 by Neelam

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1 Answer

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Check if this helps not complete just googled and found http://lteworld.org/lte-protocols-specifications

In LTE architecture, core network includes Mobility Management Entity (MME), Serving Gateway (SGW), Packet Data Network Gateway (PDN GW) where as E-UTRAN has E-UTRAN NodeB (eNB). With increased data rates, improved spectrum efficiency and packet-optimized system, LTE technology is set to drive machine to machine technology and data intensive applications.

The figures shown below provide mapping of protocols to corresponding specifications. To find 3GPP LTE specification, click at the corresponding protocol in the images below.

enter image description here

Protocol structure of control plane in between UE & MME is shown below.

This figure below shows protocol structure in between UE & P-GW user plane. GPRS Tunnelling Protocol for the user plane (GTP-U) tunnels user data between eNodeB and the S-GW as well as between the S-GW and the P-GW in the backbone network.

enter image description here

The X2 interface is defined between two neighbour eNBs. This figure below shows the control & user plane protocol stack of the X2 interface.

enter image description here

answer Nov 25, 2013 by Luv Kumar
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