3GPP 24.501 v20.0.0 — the document's own text
8.2.6.1 Message definition
Taught in 4. Inside TS 24.501, the document at the centre (CT1 — the group that writes what your phone says, overview), 2. What the group produces, and what one of its documents looks like (CT1 — the group that writes what your phone says, quick start).
The REGISTRATION REQUEST message is sent by the UE to the AMF. See table 8.2.6.1.1.
Message type: REGISTRATION REQUEST
Significance: dual
Direction: UE to network
Table 8.2.6.1.1: REGISTRATION 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 | |
| Registration request message identity | Message type9.7 | M | V | 1 | |
| 5GS registration type | 5GS registration type9.11.3.7 | M | V | 1/2 | |
| ngKSI | NAS key set identifier9.11.3.32 | M | V | 1/2 | |
| 5GS mobile identity | 5GS mobile identity9.11.3.4 | M | LV-E | 6-n | |
| C- | Non-current native NAS key set identifier | NAS key set identifier9.11.3.32 | O | TV | 1 |
| 10 | 5GMM capability | 5GMM capability9.11.3.1 | O | TLV | 3-15 |
| 2E | UE security capability | UE security capability9.11.3.54 | O | TLV | 4-10 |
| 2F | Requested NSSAI | NSSAI9.11.3.37 | O | TLV | 4-74 |
| 52 | Last visited registered TAI | 5GS tracking area identity9.11.3.8 | O | TV | 7 |
| 17 | S1 UE network capability | S1 UE network capability9.11.3.48 | O | TLV | 4-15 |
| 40 | Uplink data status | Uplink data status9.11.3.57 | O | TLV | 4-34 |
| 50 | PDU session status | PDU session status9.11.3.44 | O | TLV | 4-34 |
| B- | MICO indication | MICO indication9.11.3.31 | O | TV | 1 |
| 2B | UE status | UE status9.11.3.56 | O | TLV | 3 |
| 77 | Additional GUTI | 5GS mobile identity9.11.3.4 | O | TLV-E | 14 |
| 25 | Allowed PDU session status | Allowed PDU session status9.11.3.13 | O | TLV | 4-34 |
| 18 | UE's usage setting | UE's usage setting9.11.3.55 | O | TLV | 3 |
| 51 | Requested DRX parameters | 5GS DRX parameters9.11.3.2A | O | TLV | 3 |
| 70 | EPS NAS message container | EPS NAS message container9.11.3.24 | O | TLV-E | 4-n |
| 74 | LADN indication | LADN indication9.11.3.29 | O | TLV-E | 3-811 |
| 8- | Payload container type | Payload container type9.11.3.40 | O | TV | 1 |
| 7B | Payload container | Payload container9.11.3.39 | O | TLV-E | 4-65538 |
| 9- | Network slicing indication | Network slicing indication9.11.3.36 | O | TV | 1 |
| 53 | 5GS update type | 5GS update type9.11.3.9A | O | TLV | 3 |
| 41 | Mobile station classmark 2 | Mobile station classmark 29.11.3.31C | O | TLV | 5 |
| 42 | Supported codecs | Supported codec list9.11.3.51A | O | TLV | 5-n |
| 71 | NAS message container | NAS message container9.11.3.33 | O | TLV-E | 4-n |
| 60 | EPS bearer context status | EPS bearer context status9.11.3.23A | O | TLV | 4 |
| 6E | Requested extended DRX parameters | Extended DRX parameters9.11.3.26A | O | TLV | 3-4 |
| 6A | T3324 value | GPRS timer 39.11.2.5 | O | TLV | 3 |
| 67 | UE radio capability ID | UE radio capability ID9.11.3.68 | O | TLV | 3-n |
| 35 | Requested mapped NSSAI | Mapped NSSAI9.11.3.31B | O | TLV | 3-42 |
| 48 | Additional information requested | Additional information requested9.11.3.12A | O | TLV | 3 |
| 1A | Requested WUS assistance information | WUS assistance information9.11.3.71 | O | TLV | 3 |
| A- | N5GC indication | N5GC indication9.11.3.72 | O | TV | 1 |
| 30 | Requested NB-N1 mode DRX parameters | NB-N1 mode DRX parameters9.11.3.73 | O | TLV | 3 |
| 29 | UE request type | UE request type9.11.3.76 | O | TLV | 3 |
| 28 | Paging restriction | Paging restriction9.11.3.77 | O | TLV | 3-35 |
| 72 | Service-level-AA container | Service-level-AA container9.11.2.10 | O | TLV-E | 4-65538 |
| 32 | NID | NID9.11.3.79 | O | TLV | 8 |
| 16 | UE determined PLMN with disaster condition | PLMN identity9.11.3.85 | O | TLV | 5 |
| 2A | Requested PEIPS assistance information | PEIPS assistance information9.11.3.80 | O | TLV | 3 |
| 3B | Requested T3512 value | GPRS timer 39.11.2.5 | O | TLV | 3 |
| 3C | Unavailability information | Unavailability information 9.11.2.20 | O | TLV | 3-9 |
| 3F | Non-3GPP path switching information | Non-3GPP path switching information9.11.3.102 | O | TLV | 3 |
| 56 | AUN3 indication | AUN3 indication9.11.3.104 | O | TLV | 3 |
| 64 | Requested LP-WUSPS assistance information | LP-WUSPS assistance information9.11.3.111 | O | TLV | 3 |