3GPP 24.501 v20.0.0 — the document's own text
8.2.37.1 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 RELAY AUTHENTICATION REQUEST message is sent by the network to the UE to initiate authentication of the 5G ProSe remote UE or the 5G ProSe end UE as specified in 3GPP TS 33.503 [56]. See table 8.2.37.1.
Message type: RELAY AUTHENTICATION REQUEST
Significance: dual
Direction: Network to UE
Table 8.2.37.1: RELAY AUTHENTICATION REQUEST 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 | |
| Relay authentication request message identity | Message type9.7 | M | V | 1 | |
| PRTI | ProSe relay transaction identity9.11.3.88 | M | V | 1 | |
| EAP message | EAP message9.11.2.2 | M | LV-E | 7-1503 |