3GPP 24.501 v20.0.0 — the document's own text
8.2.26.1 Message definition
Taught in 4. Inside TS 24.501, the document at the centre (CT1 — the group that writes what your phone says, overview).
The SECURITY MODE COMPLETE message is sent by the UE to the AMF in response to a SECURITY MODE COMMAND message. See table 8.2.26.1.1.
Message type: SECURITY MODE COMPLETE
Significance: dual
Direction: UE to network
Table 8.2.26.1.1: SECURITY MODE COMPLETE message content
| IEI | Information Element | Type/Reference | Presence | Format | Length |
|---|---|---|---|---|---|
| Extended protocol discriminator | Extended protocol discriminator9.2 | M | V | 1 | |
| Security header type | Security header type9.3 | M | V | 1/2 | |
| Spare half octet | Spare half octet9.5 | M | V | 1/2 | |
| Security mode complete message identity | Message type9.6 | M | V | 1 | |
| 77 | IMEISV | 5GS mobile identity9.11.3.4 | O | TLV-E | 12 |
| 71 | NAS message container | NAS message container9.11.3.33 | O | TLV-E | 4-n |
| 78 | non-IMEISV PEI | 5GS mobile identity9.11.3.4 | O | TLV-E | 7-n |