PDSCH ULInformationTransfer( (2) Transport Physical RLC mode Logical channel channel channel UL-SCH PUSCH ConnectionSetupComplete SecurityModeComplete SecurityModeFailure ConnectionReconfigurationComplete ConnectionReestablishmentComplete MeasurementReport Transport Physical RLC mode Logical channel channel channel UL-SCH PUSCH Table 2.2. RRC messages: 1) transport of NAS messages only, downstream; 2) transport of NAS messages only, upstream 36 VoLTE and ViLTE 2.2.1. System information The information relating to the radio interface is divided between the messages MasterInformationBlock and SystemInformationBlock. These messages are transmitted periodically and a change in these data is notified to the mobile by paging. The MasterInformationBlock message contains the following data: - the bandwidth of the radio signal for the downstream direction (1.4, 3, 5, 10, 15 and 20 MHz); - the system frame number (SFN); - the configuration of the physical channel PHICH of the radio interface. The configuration of this physical channel is defined by the operator. All SystemInformationBlock messages, with the exception of the SystemInformationBlockTypel message, are mapped in a SystemInformation message. Each SystemInformation message contains SystemInformationBlock messages with the same periodicity. The SystemInformationBlockType2 message must necessarily be mapped in the SystemInformation message. The SystemInformationBlockTypel message contains the following data: - the mobile country code (MCC) and mobile network code (MNC) of the mobile network; - the mobile network code (TAC) of the location area. The identity of the TAI is a concatenation of the MCC, MNC and TAC codes. - the E-UTRAN Cell global identifier (ECGI); - the periodicity of the SystemInformation messages and the types of SystemInformationBlock messages that they contain. Table 2.3 shows the data transported by the different types of SystemInformationBlock message. Signaling Protocols Bandwidth in upstream direction SystemInformationBlockType2 Configuration 