3GPP 24.501 v20.0.0 — the document's own text
8.2.4.1 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 AUTHENTICATION FAILURE message is sent by the UE to the AMF to indicate that authentication of the network has failed. See table 8.2.4.1.1.
Message type: AUTHENTICATION FAILURE
Significance: dual
Direction: UE to network
Table 8.2.4.1.1: AUTHENTICATION FAILURE 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 | |
| Authentication failure message identity | Message type9.7 | M | V | 1 | |
| 5GMM cause | 5GMM cause9.11.3.2 | M | V | 1 | |
| 30 | Authentication failure parameter | Authentication failure parameter9.11.3.14 | O | TLV | 16 |