Section: 9.11.2.7 N1 mode to S1 mode NAS transparent container
Content: 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[ NR; Radio Resource Control (RRC); Protocol specification ]  [30]. For these cases the coding of the information element identifier and length information is defined in 3GPP TS 38.331[ NR; Radio Resource Control (RRC); Protocol specification ]  [30]. 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