Multiple CBR for Same PDN Call Flow
This section describes the Multiple CBR for Same PDN call flow.
|
Step |
Description |
|---|---|
|
1 |
Initial Attach completed. One PDN has established PDN1 (ebi 5). The PGW sends the Create Bearer Request 1 for PDN1 to the S5-GTP-EP. |
|
2 |
The S5-GTP-EP forwards the Create Bearer Request 1 for PDN1 to the cnSGW. |
|
3 |
The cnSGW sends the Sx Modify Request 1 for PDN1 to the PFCP-EP. |
|
4 |
The cnSGW receives the Sx Modify Response 1 for PDN1 from the PFCP-EP. |
|
5 |
The cnSGW sends the Create Bearer Request 1 for PDN1 to the S11-GTP-EP. |
|
6 |
The S11-GTP-EP sends the Create Bearer Request 1 for PDN1 to the MME. |
|
7 |
The PGW sends the Create Bearer Request 2 to the S5-GTP-EP. |
|
8 |
The S5-GTP-EP sends the Create Bearer Request 2 to the cnSGW. |
|
9 |
The cnSGW sends the Sx Modify Request 1 (Create Bearer Request 2) for PDN1 to the PFCP-EP. |
|
10 |
The PGW sends the Create Bearer Request 3 for PDN1 to the S5-GTP-EP. |
|
11 |
The S5-GTP-EP sends the Create Bearer Request 3 for PDN1 to the cnSGW |
|
12 |
The PFCP-EP sends the Sx Modify Response 1 (CBR2) for PDN1 to the cnSGW. |
|
13 |
The cnSGW sends the Create Bearer Request 2 for PDN1 to the S11-GTP-EP. |
|
14 |
The S11-GTP-EP sends the Create Bearer Request 2 for PDN1 to the MME. |
|
15 |
The cnSGW sends the Sx Modify Request 1(CBR3) for PDN1 to the PFPC-EP. |
|
16 |
The MME sends the Create Bearer Response 1 (ebi6) for PDN1 to the S11-GTP-EP. |
|
17 |
The S11-GTP-EP sends the Create Bearer Response 1 (ebi6) for PDN1 to the cnSGW. |
|
18 |
The cnSGW receives the Sx Modify Response 1 (CBR3) for PDN1 to the PFPC-EP. |
|
19, 20 |
The cnSGW sends the Create Bearer Request 3 to the S11-GTP-EP. |
|
20 |
The S11-GTP-EP sends the Create Bearer Request 3 to the MME. |
|
21 |
The cnSGW sends the Sx Modify Request 2(CBR1) for PDN1 to the PFPC-EP. |
|
22 |
The cnSGW receives the Sx Modify Response 2 (CBR1) for PDN1 to the PFPC-EP. |
|
23 |
The cnSGW sends the Create Bearer Response 1 (ebi 6) for PDN1 to the S5-GTP-EP. |
|
24 |
The S5-GTP-EP sends the Create Bearer Response 1 (ebi 6) for PDN1 to the PGW. |
|
25 |
The MME sends the Create Bearer Response 2 (ebi 7) for PDN1 sent from MME to cnSGW. |
|
26 |
The S11-GTP-EP sends the Create Bearer Response 2 (ebi 7) for PDN1 sent from MME to the cnSGW. |
|
27 |
The cnSGW sends the Sx Modify Request 2 (CBR2) for PDN1 to PFCP-EP. |
|
28 |
The PFCP-EP sends the Sx Modify Response 2 (CBR2) for PDN1 to the cnSGW. |
|
29 |
The cnSGW sends the Create Bearer Response 2 (ebi 7) for PDN1 to the S5-GTP-EP. |
|
30 |
The S5-GTP-EP sends the Create Bearer Response 2 (ebi 7) for PDN1 to the PGW. |
|
31 |
The MME sends the Create Bearer Response 3 (ebi 8) for PDN1 to the S11-GTP-EP. |
|
32 |
The S11-GTP-EP sends the Create Bearer Response 3 (ebi 8) for PDN1 to the cnSGW. |
|
33 |
The cnSGW sends the Sx Modify Request 2 (CBR3) for PDN1 to the PFPC-EP. |
|
34 |
The PFCP-EP send the Sx Modify Response 2 (CBR3) for PDN1 to the cnSGW. |
|
35 |
The cnSGW sends the Create Bearer Response 3 (ebi 8) for PDN1 to the S5-GTP-EP. |
|
36 |
The S5-GTP-EP sends the Create Bearer Response 3 (ebi 8) for PDN1 to the PGW. |