GPRS Tunnelling Protocol User Plane (GTP-U)

in GTP-U, S4, S5, S8, Specification, LTE, S1, X2

GTP-U protocol is used over S1-U, X2, S4, S5 and S8 interfaces of the Evolved Packet System (EPS).

GTP-U Transport

in S4, S5, S8, Specification, UDP, IP, LTE, S1, X2

The transport layer for data streams over S1, X2, S4, S5 and S8  is an IP based Transport.

S1 Signalling Transport

in IPv4, IPv6, Specification, IP, LTE, S1

S1 signalling bearer provides the following functions:

S1 layer 1

in Specification, LTE, S1

The main functions of S1 interface layer 1 are as following:

LTE RAN architecture aspects

in Whitepaper, E-UTRAN, eHNB, LTE, LTE Advanced, MME, S1, X2

Presented by Dino Flore: RAN WG3 Chair, Qualcomm at a recent IMT-Advanced workshop, in Beijing, China

It has following contents

  • EPS architecture