Feature Description
SMF supports cause IE on N11 interface message. With this feature:
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SMF supports sending and handling the received causes, which are available in Cause IE. For this support, SMF complies with the 3GPP TS 29.502 version 15.4.0.0, section 6.1.6.3.8.
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SMF supports the following 3GPP Change Requests (CR):
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3GPP TS 29.502, CR 0097 to send the new "INSUFFICIENT_UP_RESOURCES" cause information.
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3GPP TS 29.518 CR 161 not to support the UE_IN_NON_ALLOWED_AREA cause in N1N2 Message Transfer Error from AMF.
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SMF supports the statistics for the causes on the N11 interface messages.