Telecommunication management; Subscriber and equipment trace; Trace control and configuration management
The present document describes the mechanisms used for the control and configuration of the Trace, Minimization of Drive Test (MDT), Radio Link Failure (RLF), RRC reporting and RRC Connection Establishment Failure (RCEF) reporting functionality at the management system (at the Element Manager (EM) and or Network Manager (NMs)), Network Elements (NEs), Network Functions (NFs), and User Equipment (UEs). The Trace, MDT, RLF reporting, RCEF reporting are supported in UMTS, LTE and 5G.
The present document also describes the mechanisms used for control and configuration of the 5GC UE level measurement collection at the management system, Network Functions (NFs) and User Equipment (UEs).
The 5GC UE level measurement collection is supported in 5GC only.
For Trace functionality, it covers the triggering events for starting/stopping of subscriber/UE activity traced over 3GPP standardized signalling interfaces, the types of trace mechanisms, configuration of a trace, level of detail available in the trace data, the generation of Trace results in the NEs and UE and the transfer of these results to management system. For MDT, it also covers logged MDT and immediate MDT mechanisms in both management based and signalling based scenarios. For 5GC UE level measurements collection, it also covers management based and signalling based scenarios.
The mechanisms for Trace, MDT, RLF, RCEF and RRC reporting, and 5GC UE level measurements activation/deactivation are detailed in clause 4; clause 5 details the various Trace, MDT, RLF, RCEF and RRC reporting, and 5GC UE level measurements control and configuration parameters and the triggering events that can be set in a network. Trace, MDT, RLF, RCEF and RRC reporting concepts and requirements are covered in 3GPP TS 32.421 [2] while Trace and MDT data definition and management is covered in 3GPP TS 32.423 [3]. The 5GC UE level measurements definitions covered in 3GPP TS 28.558 [62].
The conditions for supporting Network Sharing are stated in 3GPP TS 32.421 [2].
The condition for supporting user consent handling for MDT does not apply to Standalone Non-Public Network, i.e., SNPN as per TS 23.501[40].