RAU procedure in LTE | Routing Area Update procedure in LTE
This page describes RAU procedure used in LTE system. RAU stands for Routing Area Update in LTE system. It mentions RAU procedure without S-GW change and with S-GW change.
RAU procedure without S-GW Change
The figure-1 depicts message flow between E-UTRAN entities during RAU procedure without S-GW (Serving Gateway) Change.
RAU procedure with S-GW Change
The figure-2 depicts message flow between E-UTRAN entities during RAU procedure with S-GW (Serving Gateway) Change.
3GPP TS 23.401 version 11.3.0 Release 11