3GPP 24.501 v20.0.0 — the document's own text
9.11.3.20 De-registration type
Taught in 4. Inside TS 24.501, the document at the centre (CT1 — the group that writes what your phone says, overview).
The purpose of the De-registration type information element is to indicate the type of de-registration.
The De-registration type information element is coded as shown in figure 9.11.3.20.1 and table 9.11.3.20.1.
The De-registration type is a type 1 information element.
| 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | |
|---|---|---|---|---|---|---|---|---|
| De-registration typeIEI | Switchoff | Re-registration required | Access type | octet 1 |
Figure 9.11.3.20.1: Deregistration type information element
Table 9.11.3.20.1: Deregistration type information element
| Switch off (octet 1, bit 4) | ||||
|---|---|---|---|---|
| In the UE to network direction: | ||||
| Bit | ||||
| 4 | ||||
| 0 | Normal de-registration | |||
| 1 | Switch off | |||
| In the network to UE direction bit 4 is spare. The network shall set this bit to zero. | ||||
| Re-registration required (octet 1, bit 3) | ||||
| In the network to UE direction: | ||||
| Bit | ||||
| 3 | ||||
| 0 | re-registration not required | |||
| 1 | re-registration required | |||
| In the UE to network direction bit 3 is spare. The UE shall set this bit to zero. | ||||
| Access type (octet 1,bit 2, bit 1) | ||||
| Bit | ||||
| 2 | 1 | |||
| 0 | 1 | 3GPP access | ||
| 1 | 0 | Non-3GPP access | ||
| 1 | 1 | 3GPP access and non-3GPP access | ||
| All other values are reserved. |