EPS Release 1 IOT Attach Detach Call Flows
5
3GPP Evolved Packet System LTE Release 1 IOT Attach and Detach Message Sequence Diagrams Jul 2, 2009 Cisco Confidential
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Transcript of EPS Release 1 IOT Attach Detach Call Flows
3GPP Evolved Packet System
LTE Release 1 IOT
Attach and Detach
Message Sequence Diagrams
Jul 2, 2009
Cisco Confidential
1. Attach procedure: eUTRAN initial attach36. Multiple PDN support procedures: UE requested PDN disconnection
Notes:
· Message and Information Elements based on TS 23.401 v8.1.0 and TS 29.274 v8.1.1
Table of Contents
UE eNodeBNew
MMEEIR
Serving
GWPDN GW PCRF HSS AAA OCS
1. Attach Request
2. Attach Request
5. Identity Request
6. Identity Response
7.Security/Authentication
8. Identity Request/Response
9.IMEI Identity Check
10. Ciphered Options Request
11. Ciphered Options Response
E-UTRAN Initial Attach (1 of 2)
Old MME/
SGSN
3. Identification Request
4. Identification Response
OFCS
12. Delete Session Request (LBI)
21. Delete Session Response (Cuase, [Recovery], [PCO])
If bearer
exists in
New MME
13. Delete Session Request (LBI)
19. RADIUS Accounting Stop
20. RADIUS Accounting Stop Response
15. GTP’ DTR Req (PGW-CDR) Final
16. GTP’ DTR Resp
14. Delete Session Response (Cause, [Recovery], [PCO])
17. GTP’ DTR Req (SGW-CDR)
18. GTP’ DTR Resp
If Gz is
enabled
22. Update Location Request
23. Cancel Location
24. Cancel Location Ack
25. Delete Session Request (LBI)
34. Delete Session Response (Cause, [Recovery], [PCO])
35. Update Location Response
If bearer
exists in
Old MME/
SGSN
26. Delete Session Request (LBI)
32. RADIUS Accounting Stop
33. RADIUS Accounting Stop Response
28. GTP’ DTR Req (PGW-CDR) Final
29. GTP’ DTR Resp
27. Delete Session Response (Cause, [Recovery], [PCO])
30. GTP’ DTR Req (SGW-CDR)
31. GTP’ DTR Resp
If Gz is
enabled
UE eNodeBNew
MMEEIR
Serving
GWPDN GW PCRF HSS AAA OCS
36. GTP Create Session Request (IMSI, [MSISDN], [MEI], ULI, Serving Network, RAT Type , Sender F-TEID CP:MME,
PGW S5/S8 Addr CP:PGW, APN, Selection Mode, PDN Type, PAA, Max APN Restriction, APN-AMBR, [PCO], Bearer
Contexts to create: {EBI, [UL TFT], [DL TFT], Bearer Level QoS, Charging Characteristics}, [Recovery], [UE Time Zone])
38. RADIUS Access Request
39. RADIUS Access Accept
If UE
authentication is
required (SGi)
44. GTP Create Session Response (Cause, PGW TEID-C, PAA, APN Restriction,
[APN-AMBR], [PCO], Bearer Contexts created: {EBI, Cause, [UL TFT], [DL TFT],
PGW UL TEID-U, [Bearer Level QoS], Charging ID}, [Recovery])
45. GTP Create Session Response (Cause, SGW TEID-C, PAA, APN Restriction,
[APN-AMBR], [PCO], Bearer Context created: {EBI, Cause, [UL TFT], [DL TFT],
SGW UL TEID-U, [Bearer Level QoS], Charging ID}, [Recovery])
E-UTRAN Initial Attach (1 of 2)
Old MME/
SGSNOFCS
If Gx is enabled
42. RADIUS Acct. Start Req
40. Gx CCR (Policy Authorization Req.)
41. Gx CCA (Policy Authorization Resp.)
43. RADIUS Acct. Start Resp.
First Downlink Data
37. GTP Create Session Request (IMSI, [MSISDN], [MEI], ULI, Serving Network, RAT
Type, SGW TEID-C, APN, Selection Mode, PDN Type, PAA, Max APN Restriction,
APN-AMBR, [PCO], Bearer Contexts to create: {EBI, [UL TFT], [DL TFT], SGW DL
TEID-U, Bearer Level QoS, Charging Characteristics}, [Recovery], [UE Time Zone])
52. GTP Modify Bearer Request (Bearer Contexts to modify: {EBI, eNB DL
TEID, [Charging Characteristics]}, [Recovery], [UE Time Zone])
53. GTP Modify Bearer Response (Cause, [MSISDN], [Bearer Contexts modified: {EBI, cause,
SGW UL TEID-U}, [Recovery])
First Downlink Data
46. Initial Context Setup Request/Attach Accept
47. RRC Connection Reconfiguration
48. RRC Connection Reconfiguration Complete
49. Initial Context Setup Response
50. Direct Transfer
51. Attach Complete
First Uplink Data
Data packet are
buffered
Buffered data
packet are sent
Uplink Data
Downlink Data
UE MME PDN GW PCRF AAA OCS OFCS
UE Requested PDN Disconnection
eNodeB Serving GW HSS
1. PDN Disconnection Request
4. Delete Session Request (LBI)
9. RADIUS Accounting Stop
7. Gx CCR Final
8. Gx CCA Final
10. RADIUS Accounting Stop Response
11. GTP’ DTR Req (PGW-CDR) Final
12. GTP’ DTR Resp
5. Delete Session Response (Cause, [Recovery], [PCO])
13. Delete Session Response (Cause, [Recovery], [PCO])
16. Deactivate Bearer Request
17. RRC Connection Reconfiguration
18. RRC Connection Reconfiguration Complete
19. Deactivate Bearer Response
14. GTP’ DTR Req (SGW-CDR) Final
15. GTP’ DTR Resp
If Gz is
enabled
2. PDN Disconnection Trigger
3. Delete Session Request (LBI, Indication Flags: {Operation}, [PCO], Originating Node)
Non-compliant
to TS 29.213:
message sent
before PCC
interaction
One accounting
stop per bearer
If Gx is
enabled
