Question: In an E-UTRA network, a UE in RRC_INACTIVE state receives a SystemInformationBlockType1 that triggers an RNA Update. What procedure should the UE initiate, and with what cause value?
Option 1: RRC Connection Establishment procedure with cause value set to 'mobile-Originated-Data'
Option 2: RRC Connection Resume procedure with cause value set to 'mobility-Related Parameters Update'
Option 3: RRC Connection Resume procedure with cause value set to 'rna-Update'
Option 4: RRC Connection Reconfiguration procedure with cause value set to 'user-Inactivity'
Explanation: When a UE in RRC_INACTIVE state receives a SystemInformationBlockType1 that triggers an RNA Update, it should initiate the RRC Connection Resume procedure. The correct cause value for this scenario is indeed 'rna-Update', ensuring efficient network resource management and proper handling of the UE's connection state transition.