Behavior Change

Previous Behavior: When the HO failure is received from the gNB, the AMF was sending smfupdateCtxtReq to the SMF with n2smInfoType field present, even when n2smInfo wasn’t received from the AN.

New Behavior: When the AMF receives the HO failure note from the gNB, it acts as follows:

  • The AMF sends the SMF Update Context Request to the SMF:

    • Without the n2smInfoType field if n2smInfo isn't received from the AN.

    • It includes the HoState and cause attribute.

Customer Impact: No impact.