<-- RRC:rrcConnectionRelease

IC info: MAC-I     = 0xdc4a837c
         RRC-SN    = 1
         Direction = 1
         Length    = 56 bits

    DL-DCCH-Message {
     integrityCheckInfo {
      messageAuthenticationCode '11011100010010101000001101111100'B,
      rrc-MessageSequenceNumber 1
     },
     message rrcConnectionRelease : later-than-r3 : {
        rrc-TransactionIdentifier 0,
        criticalExtensions r4 : {
          rrcConnectionRelease-r4 {
           n-308 2,
           releaseCause normalEvent
          }
         }
       }
    }