Section: – SecurityModeCommand
Content: The SecurityModeCommand message is used to command the activation of AS security. Signalling radio bearer: SRB1 RLC-SAP: AM Logical channel: DCCH Direction: Network to UE SecurityModeCommand message -- ASN1START -- TAG-SECURITYMODECOMMAND-START SecurityModeCommand ::= SEQUENCE { rrc-TransactionIdentifier RRC-TransactionIdentifier, criticalExtensions CHOICE { securityModeCommand SecurityModeCommand-IEs, criticalExtensionsFuture SEQUENCE {} } } SecurityModeCommand-IEs ::= SEQUENCE { securityConfigSMC SecurityConfigSMC, lateNonCriticalExtension OCTET STRING OPTIONAL, nonCriticalExtension SEQUENCE{} OPTIONAL } SecurityConfigSMC ::= SEQUENCE { securityAlgorithmConfig SecurityAlgorithmConfig, ... } -- TAG-SECURITYMODECOMMAND-STOP -- ASN1STOP