Section 3.19 S message

• S1SetupRequest
• S1SetupResponse
• S1SetupFailure
  • S1SetupFailure Cause

S1SetupRequest

S1SetupRequest

S1SetupRequest
 protocolIEs: 4 items
  Item 0: id-Global-ENB-ID
   Global-ENB-ID
    pLMNidentity: 44f944
    Mobile Country Code (MCC): Unassigned (449)
    Mobile Network Code (MNC): Unknown (44)
    eNB-ID: homeENB-ID (1)
     homeENB-ID: 00003320 [decimal value 818]
  Item 1: id-eNBname
   1... .... Extension Present Bit: True
   ENBname: loseblue
  Item 2: id-SupportedTAs
   SupportedTAs: 1 item
    Item 0
     SupportedTAs-Item
      tAC: 0001 (1)
      broadcastPLMNs: 1 item
       Item 0
      PLMNidentity: 44f944
      Mobile Country Code (MCC): Unassigned (449)
      Mobile Network Code (MNC): Unknown (44)
  Item 3: id-DefaultPagingDRX
   PagingDRX: v32 (0)

S1SetupResponse

S1SetupResponse

S1SetupResponse
 protocolIEs: 3 items
  Item 0: id-MMEname
   0... .... Extension Present Bit: False
   MMEname: MME1
  Item 1: id-ServedGUMMEIs
   ServedGUMMEIs: 1 item
    Item 0
     ServedGUMMEIsItem
      servedPLMNs: 1 item
       Item 0
      PLMNidentity: 44f944
      Mobile Country Code (MCC): Unassigned (449)
      Mobile Network Code (MNC): Unknown (44)
      servedGroupIDs: 1 item
       Item 0
      MME-Group-ID: 04d2
      servedMMECs: 1 item
       Item 0
      MME-Code: 41
  Item 2: id-RelativeMMECapacity
   RelativeMMECapacity: 255

• RelativeMMECapacity
  • 0-255 for balancing the load within an MME pool in 3GPP 23.401.
  • A higher value means more UE connections capability in the same pool.
  • MME_CONFIGURATION_UPDATE is used to update this information to the eNodeB.

S1SetupFailure

S1SetupFailure

S1AP-PDU: unsuccessfulOutcome (2)
 S1SetupFailure
  protocolIEs: 1 item
   Item 0: id-Cause
      Cause: misc (4)
       misc: unknown-PLMN (5)

S1SetupFailure Cause

Cause ::= CHOICE {
   radioNetwork CauseRadioNetwork,
   transport CauseTransport,
   nas CauseNas,
   protocol CauseProtocol,
   misc CauseMisc,
   ...
}

CauseMisc ::= ENUMERATED {
   control-processing-overload,
   not-enough-user-plane-processing-resources,
   hardware-failure,
   om-intervention,
   unspecified,
   unknown-PLMN,
   ...
}

CauseProtocol ::= ENUMERATED {
   transfer-syntax-error,
   abstract-syntax-error-reject,
   abstract-syntax-error-ignore-and-notify,
   message-not-compatible-with-receiver-state,
   semantic-error,
   abstract-syntax-error-falsely-constructed-message,
   unspecified,
   ...
}

CauseRadioNetwork ::= ENUMERATED {
   unspecified,
   tx2relocoverall-expiry,
   successful-handover,
   release-due-to-eutran-generated-reason,
   handover-cancelled, 
   partial-handover, 
   ho-failure-in-target-EPC-eNB-or-target-system,
   ho-target-not-allowed,
   tS1relocoverall-expiry,
   tS1relocprep-expiry,
   cell-not-available,
   unknown-targetID,
   no-radio-resources-available-in-target-cell,
   unknown-mme-ue-s1ap-id,
   unknown-enb-ue-s1ap-id,
   unknown-pair-ue-s1ap-id,
   handover-desirable-for-radio-reason,
   time-critical-handover,
   resource-optimisation-handover,
   reduce-load-in-serving-cell,
   user-inactivity,
   radio-connection-with-ue-lost,
   load-balancing-tau-required,
   cs-fallback-triggered,
   ue-not-available-for-ps-service,
   radio-resources-not-available,
   failure-in-radio-interface-procedure,
   invalid-qos-combination,
   interrat-redirection,
   interaction-with-other-procedure,
   unknown-E-RAB-ID,
   multiple-E-RAB-ID-instances,
   encryption-and-or-integrity-protection-algorithms-not-supported,
   s1-intra-system-handover-triggered,
   s1-inter-system-handover-triggered,
   x2-handover-triggered,
   ...,
   redirection-towards-1xRTT,
   not-supported-QCI-value,
   invalid-CSG-Id
}

CauseTransport ::= ENUMERATED {
   transport-resource-unavailable,
   unspecified,
   ...
}

CauseNas ::= ENUMERATED {
   normal-release,
   authentication-failure,
   detach,
   unspecified,
   ...,
   csg-subscription-expiry
}