Section: 9.11.3.49 Service area list
Content: The purpose of the Service area list information element is to transfer a list of allowed tracking areas for an allowed area or a list of non-allowed tracking areas for a non-allowed area from the network to the UE. The coding of the information element allows combining different types of lists. The lists of type "00" and "01" allow a more compact encoding, when the different TAIs are sharing the PLMN identity. The lists of type "11" indicate all TAIs of the PLMNs in the registration area are allowed area. The Service area list information element is coded as shown in figure 9.11.3.49.1, figure 9.11.3.49.2, figure 9.11.3.49.3, figure 9.11.3.49.4, figure 9.11.3.49.5 and table 9.11.3.49.1. The Service area list is a type 4 information element with a minimum length of 6 octets and a maximum length of 114 octets. The list can contain a maximum of 16 different tracking area identities. Figure 9.11.3.49.1: Service area list information element Figure 9.11.3.49.2: Partial service area list – type of list = "00" Figure 9.11.3.49.3: Partial service area list – type of list = "01" Figure 9.11.3.49.4: Partial service area list – type of list = "10" Figure 9.11.3.49.5: Partial service area list – type of list = "11" Table 9.11.3.49.1: Service area list information element