School of Specs 24.501v20.0.0

3GPP 24.501 v20.0.0 — the document's own text

9.11.2.7 N1 mode to S1 mode NAS transparent container

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 N1 mode to S1 mode NAS transparent container information element is to provide the UE with information that enables the UE to create a mapped EPS security context.

The N1 mode to S1 mode NAS transparent container information element is coded as shown in figure 9.11.2.7.1 and table 9.11.2.7.1.

The N1 mode to S1 mode NAS transparent container is a type 3 information element with a length of 2 octets.

The value part of the N1 mode to S1 mode NAS transparent container information element is included in specific information elements within some RRC messages sent to the UE; see 3GPP TS 38.331 [30]. For these cases the coding of the information element identifier and length information is defined in 3GPP TS 38.331 [30].

87654321
N1 mode to S1 mode NAS transparent container IEIoctet 1
Sequence numberoctet 2

Figure 9.11.2.7.1: N1 mode to S1 mode NAS transparent container information element

Table 9.11.2.7.1: N1 mode to S1 mode NAS transparent container information element

Sequence number (octet 2)
This field is coded as the Sequence number information element (see clause 9.10).