3GPP 24.501 v20.0.0 — the document's own text
9.11.3.102 Non-3GPP path switching information
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 Non-3GPP path switching information information element is to request from the network to keep using the user plane resources of the old non-3GPP access during path switching to the new non-3GPP access.
The Non-3GPP path switching information information element is coded as shown in figure 9.11.3.102.1 and table 9.11.3.102.1.
The Non-3GPP path switching information is a type 4 information element with a length of 3 octets.
| 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | |
|---|---|---|---|---|---|---|---|---|
| Non-3GPP path switching information IEI | octet 1 | |||||||
| Length of Non-3GPP path switching information | octet 2 | |||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | NSONR | octet 3 |
| Spare |
Figure 9.11.3.102.1: Non-3GPP path switching information information element
Table 9.11.3.102.1: Non-3GPP path switching information information element
| Non-3GPP path switching while using old non-3GPP resources (NSONR) (octet 3, bit 1) | ||||
|---|---|---|---|---|
| Bit | ||||
| 1 | ||||
| 0 | non-3GPP path switching while using old non-3GPP resources not requested | |||
| 1 | non-3GPP path switching while using old non-3GPP resources requested | |||
| Bits 8 to 2 of octet 3 are spare and shall be coded as zero. | ||||