Robert Schmidt
67e9c9c263
Mark non-existing AMF UE NGAP ID through invalid INT64_MAX number (permitted range is up to 2^40-1). Check for this range in the RAN function, as we might otherwise pass the invalid AMF UE NGAP ID to the agent, which would assert with nr-softmodem: /oai-ran/openair2/E2AP/flexric/src/lib/3gpp/enc/enc_gnb.c:83: enc_gNB_UE_asn: Assertion `gnb->amf_ue_ngap_id < 1UL << 40' failed. In other words, don't send KPM messages for a UE which has no valid AMF UE NGAP ID yet (which follows from the fact that the spec requires an AMF UE NGAP ID; the previous behavior of simply sending 0 could be considered a bug, because it's not the UE's true AMF UE NGAP ID).
RAN Functions as defined by O-RAN