Delete Bearer Command Procedure Call Flow
This section describes the delete bearer command procedure call flow.

Step |
Description |
---|---|
1 |
MME receives an indication of Bearer Release from eNodeB request. MME creates Delete Bearer Command message to SGW (cnSGW-C). It includes RAN/NAS cause code list. |
2 |
SGW (cnSGW-C) forwards the Delete Bearer Command message request to PGW. It detects and forwards RAN/NAS cause code list. |
3 |
PGW sends the Delete Bearer Request message to SGW (cnSGW-C). PGW receives IP-CAN session modification request from PCEF. |
4 |
SGW (cnSGW-C) generates a Delete Bearer Request message towards MME. |
5 |
MME generates a Delete Bearer Response message towards SGW (cnSGW-C). |
6 |
SGW (cnSGW-C) further sends the Delete Bearer Response message to PGW. |