Wednesday, March 5, 2025

Call flows - S11

 Create Session Request/Response

Call flows - S11/S5



Sends the Attach result to the UE, eNB. Includes details of the default bearer. Some important details -
1. QoS - QCI + ARP priority
2. SGW IP address
3. TEID as assigned by SGW
4. NW timers - TAC


eNb sends TEID + enB S1-U IP -> MME updates the SGW with this information.

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