3GPP 24.501 v20.0.0 — the document's own text
9.11.3.93 N3IWF identifier
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 N3IWF identifier information element is to enable the network to assign the UE, a suitable N3IWF for the requested NSSAI.
The N3IWF identifier information element is coded as shown in figure 9.11.3.93.1, figure 9.11.3.93.2, figure 9.11.3.93.3 and table 9.11.3.93.1.
The N3IWF identifier information element is a type 4 information element with a minimum length of 7 octets.
| 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | |
|---|---|---|---|---|---|---|---|---|
| N3IWF identifier IEI | octet 1 | |||||||
| Length of N3IWF identifier contents | octet 2 | |||||||
| N3IWF identifier type | octet 3 | |||||||
| N3IWF identifier entry | octet 4octet k |
Figure 9.11.3.93.1: N3IWF identifier information element
| 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | |
|---|---|---|---|---|---|---|---|---|
| N3IWF IP address | octet 4octet m |
Figure 9.11.3.93.2: N3IWF address entry (N3IWF identifier type = "IPv4", "IPv6" or "IPv4v6")
| 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | |
|---|---|---|---|---|---|---|---|---|
| N3IWF FQDN | octet 4octet n |
Figure 9.11.3.93.3: N3IWF identifier entry (N3IWF identifiertype ="FQDN")
Table 9.11.3.93.1: N3IWF address entry
| N3IWF identifier type (octet 3) is set as follows: | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | ||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | IPv4 | |
| 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | IPv6 | |
| 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | IPv4v6 | |
| 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | FQDN | |
| All other values are reserved. | |||||||||
| If the N3IWF identifier type indicates IPv4, then the N3IWF IP address field contains an IPv4 address in octet 4 to octet 7. | |||||||||
| If the N3IWF identifier type indicates IPv6, then the N3IWF IP address field contains an IPv6 address in octet 4 to octet 19. | |||||||||
| If the N3IWF identifier type indicates IPv4v6, then the N3IWF IP address field contains two IP addresses. The first IP address is an IPv4 address in octet 4 to octet 7. The second IP address is an IPv6 address in octet 8 to octet 23. | |||||||||
| If the N3IWF identifier type indicates FQDN, the N3IWF FQDN field in octet 4 to octet n is encoded as defined in clauses 28.3.2.2.2, 28.3.2.2.3, 28.3.2.2.8 or 28.3.2.2.9 in 3GPP TS 23.003 [4]. | |||||||||