3GPP 24.501 v20.0.0 — the document's own text
8.3.14.1 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 PDU SESSION RELEASE COMMAND message is sent by the SMF to the UE to indicate a release of a PDU session. See table 8.3.14.1.1.
Message type: PDU SESSION RELEASE COMMAND
Significance: dual
Direction: network to UE
Table 8.3.14.1.1: PDU SESSION RELEASE COMMAND message content
| IEI | Information Element | Type/Reference | Presence | Format | Length |
|---|---|---|---|---|---|
| Extended protocol discriminator | Extended protocol discriminator9.2 | M | V | 1 | |
| PDU session ID | PDU session identity9.4 | M | V | 1 | |
| PTI | Procedure transaction identity9.6 | M | V | 1 | |
| PDU SESSION RELEASE COMMAND message identity | Message type9.7 | M | V | 1 | |
| 5GSM cause | 5GSM cause9.11.4.2 | M | V | 1 | |
| 37 | Back-off timer value | GPRS timer 39.11.2.5 | O | TLV | 3 |
| 78 | EAP message | EAP message9.11.2.2 | O | TLV-E | 7-1503 |
| 61 | 5GSM congestion re-attempt indicator | 5GSM congestion re-attempt indicator9.11.4.21 | O | TLV | 3 |
| 7B | Extended protocol configuration options | Extended protocol configuration options9.11.4.6 | O | TLV-E | 4-65538 |
| D- | Access type | Access type9.11.2.1A | O | TV | 1 |
| 72 | Service-level-AA container | Service-level-AA container9.11.2.10 | O | TLV-E | 4-65538 |
| 5A | Alternative S-NSSAI | S-NSSAI9.11.2.8 | O | TLV | 3-10 |