{"id":914,"date":"2018-06-11T14:56:06","date_gmt":"2018-06-11T14:56:06","guid":{"rendered":"http:\/\/help.bwtech.com\/?page_id=914"},"modified":"2018-06-11T17:52:34","modified_gmt":"2018-06-11T17:52:34","slug":"event-detection-ericsson-4g","status":"publish","type":"page","link":"https:\/\/help.bwtech.com\/?page_id=914","title":{"rendered":"Event Detection – Ericsson 4G"},"content":{"rendered":"

CELL TRACES<\/h2>\n

For Ericsson 4G, we use Celltraces files. Below we describe how each event is detected.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Name<\/b><\/strong><\/td>\nHow to<\/b><\/strong>\u00a0<\/b><\/strong>detect?<\/b><\/strong><\/td>\n<\/tr>\n
DNS_RSRP_AVG
\nDNS_RSRP_MAX
\nDNS_RSRQ_AVG
\nDNS_RSRQ_MAX<\/td>\n		extracted from RRC \u00a0message “rrcMeasurementReport” (UL DCCH)<\/td>\n<\/tr>\n
DNS_CALL_ACCESS
\nEVT_CALL_ACCESS<\/td>\n		Occurs when a call successfully enters a cell in eNB – can be after either successful incoming handover or successful RRC setup.<\/p>\n

detected from Cell Traces event \u201cINTERNAL_PROC_RRC_CONNECTION_SETUP\u201d for\u00a0RCC_ACCESS;<\/p>\n

INTERNAL_PROC_HO_EXEC_X2_IN for X2_HO_IN CALL_ACESS;<\/p>\n

INTERNAL_PROC_HO_EXEC_S1_IN for S1_HO_IN CALL_ACESS;<\/td>\n<\/tr>\n

DNS_UE_CONTEXT_RELEASE EVT_UE_CONTEXT_RELEASE<\/td>\nOccurs when eNB shall release UE-related resources.\u00a0S1AP UE Context Release Request (eNB or MME initiated) or X2AP UE Context Release Request (initiated by target eNB but reported in source eNB\/cell).<\/p>\n

detected from Cell Traces event \u201cINTERNAL_PROC_UE_CTXT_RELEASE\u201d<\/td>\n<\/tr>\n

DNS_CALL_ENDED<\/p>\n

EVT_CALL_ENDED<\/td>\n

Occurs when call is terminated.\u00a0Based on S1AP UE Context Release Request (eNB or MME initiated).<\/p>\n

detected from Cell Traces Event:<\/p>\n

S1_UE_CONTEXT_RELEASE_REQUEST event when the triggering node is ENB.<\/p>\n

S1_UE_CONTEXT_RELEASE_COMMAND event when the triggering node is MME.<\/td>\n<\/tr>\n

DNS_CALL_DROPPED
\nEVT_CALL_DROPPED<\/td>\n		Occurs when call is terminated abnormally.\u00a0Defined as CALL_ENDED with ABNORMAL call release status.<\/p>\n

detected from Cell Traces\u00a0Event:<\/p>\n

S1_UE_CONTEXT_RELEASE_REQUEST event when the triggering node is ENB with ReleaseCauses\u00a0set to ABNORMAL call releases.<\/p>\n

S1_UE_CONTEXT_RELEASE_COMMAND event when the triggering node is MME with\u00a0ReleaseCauses\u00a0set to ABNORMAL call releases.<\/td>\n<\/tr>\n

DNS_INCOMING_HO EVT_INCOMING_HO<\/td>\nOccurs when incoming handover is attempted to a cell
\nRefers to any sort of handover: intra-RAT (X2 or S1 based) and inter-RAT (from other technologies, UTRAN to EUTRAN, WiFi to EUTRAN).detected from Cell Traces event \u201cINTERNAL_PROC_HO_PREP_X2_IN”,
\n“INTERNAL_PROC_HO_PREP_S1_IN”,
\n“INTERNAL_PROC_HO_EXEC_X2_IN”,
\n“INTERNAL_PROC_HO_EXEC_S1_IN\u201d<\/td>\n<\/tr>\n
DNS_OUTGOING_INTRA_RAT_HO EVT_OUTGOING_INTRA_RAT_HO<\/td>\nOccurs when intra-rat (LTE to LTE) handover is attempted.
\nRefers to any sort fo intra-RAT handovers: intra-eNB, inter-eNB, inter-MME, X2 based, S1 based.detected from Cell Traces event \u201cINTERNAL_PROC_HO_PREP_X2_OUT”,
\n“INTERNAL_PROC_HO_PREP_S1_OUT”,
\n“INTERNAL_PROC_HO_EXEC_X2_OUT”,
\n“INTERNAL_PROC_HO_EXEC_S1_OUT\u201d<\/td>\n<\/tr>\n
DNS_OUTGOING_INTER_RAT_HO EVT_OUTGOING_INTER_RAT_HO<\/td>\nOccurs when inter-rat (LTE to OTHER RAT, EUTRAN to UTRAN) handover is attempted.
\nRefers to any sort of inter-RAT handovers.detected from Cell Traces event \u201cINTERNAL_PROC_HO_PREP_X2_OUT”,
\n“INTERNAL_PROC_HO_PREP_S1_OUT”,
\n“INTERNAL_PROC_HO_EXEC_X2_OUT”,
\n“INTERNAL_PROC_HO_EXEC_S1_OUT\u201d<\/p>\n

With “EVENT_PARAM_SOURCE_OR_TARGET_TYPE” set to Inter-RAT technologies.<\/td>\n<\/tr>\n

DNS_ERAB_SETUP EVT_ERAB_SETUP<\/td>\nOccurs when additional non-default and non-signalling dedicated ERAB is set up during a call with QCI = 1 which is related to VoLTE call.
\nIt is created together with ERAB_SETUP event if one of the created ERABs has QCI = 1.detected from Cell Traces event “INTERNAL_PROC_ERAB_SETUP” event with QCI==1 in one of the E-RAB to be setup information arrays.<\/td>\n<\/tr>\n
DNS_ERAB_RELEASE EVT_ERAB_RELEASE<\/td>\nOccurs when any additional non-default and non-signalling dedicated ERAB are released (can be normal or abnormal release, or handover etc).<\/p>\n

detected from Cell Traces event “INTERNAL_PROC_ERAB_RELEASE”<\/td>\n<\/tr>\n

DNS_VOICE_ERAB_RELEASE EVT_VOICE_ERAB_RELEASE<\/td>\nOccurs when additional non-default and non-signalling dedicated ERAB with QCI = 1 is released (can be normal or abnormal release, or handover etc).
\nIt is created together with ERAB_RELEASE event if one of the created ERABs has QCI = 1.detected from\u00a0CellTraces\u00a0event\u00a0“INTERNAL_PROC_ERAB_RELEASE” event with QCI==1 in one of the E-RAB to be setup information arrays.<\/td>\n<\/tr>\n
DNS_LTE_CS_FALLBACK
\nEVT_LTE_CS_FALLBACK<\/td>\n		Occurs when LTE CS Fallback (CSFB) attempt is detected.<\/p>\n

detected from\u00a0CellTraces\u00a0event “INTERNAL_EVENT_UE_MOBILITY_EVAL” with “EVENT_PARAM_MOBILITY_TRIGGET” set to one of the CSCF triggers;
\n“INTERNAL_PROC_HO_PREP_S1_OUT” with “EVENT_PARAM_PROC_PREP_OUT_ATTEMPT_CAUSE” set to one the CSCF causes;
\n“INTERNAL_PROC_HO_EXEC_S1_OUT” with “EVENT_PARAM_PROC_EXEC_OUT_ATTEMPT_CAUSE” set to one the CSCF causes;
\n“INTERNAL_PROC_UE_CTXT_RELEASE” with “EVENT_PARAM_3GPP_CAUSE_GROUP” set to “EVENT_VALUE_RADIO_NETWORK”\u00a0and “EVENT_PARAM_3GPP_CAUSE” set to “EVENT_VALUE_CS_FALLBACK_TRIGGERED”.<\/td>\n<\/tr>\n

DNS_RRC_CONN_RELEASE
\nEVT_RRC_CONN_RELEASE<\/td>\n		Occurs after RRC CONNECTION RELEASE message.<\/p>\n

detected from Cell Traces message\u00a0\u201cRRC_RRC_CONNECTION_RELEASE event. The event information is parsed from the ASN1 protocol IEs.\u201d<\/p>\n

 <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

CELL TRACES For Ericsson 4G, we use Celltraces files. Below we describe how each event is detected. Name How to\u00a0detect? DNS_RSRP_AVG DNS_RSRP_MAX DNS_RSRQ_AVG DNS_RSRQ_MAX extracted from RRC \u00a0message “rrcMeasurementReport” (UL DCCH) DNS_CALL_ACCESS EVT_CALL_ACCESS Occurs when a call successfully enters a cell in eNB – can be after either successful incoming handover or successful RRC setup. […]<\/p>\n","protected":false},"author":6,"featured_media":0,"parent":253,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/help.bwtech.com\/index.php?rest_route=\/wp\/v2\/pages\/914"}],"collection":[{"href":"https:\/\/help.bwtech.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/help.bwtech.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/help.bwtech.com\/index.php?rest_route=\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/help.bwtech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=914"}],"version-history":[{"count":2,"href":"https:\/\/help.bwtech.com\/index.php?rest_route=\/wp\/v2\/pages\/914\/revisions"}],"predecessor-version":[{"id":924,"href":"https:\/\/help.bwtech.com\/index.php?rest_route=\/wp\/v2\/pages\/914\/revisions\/924"}],"up":[{"embeddable":true,"href":"https:\/\/help.bwtech.com\/index.php?rest_route=\/wp\/v2\/pages\/253"}],"wp:attachment":[{"href":"https:\/\/help.bwtech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=914"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}