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Content for  TS 28.558  Word version:  19.0.0

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1  Scopep. 6

The present document specifies the UE level measurements for 5G system, and the corresponding collection and reporting mechanisms.

2  Referencesp. 6

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
  • References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
  • For a specific reference, subsequent revisions do not apply.
  • For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
TS 23.501: "System Architecture for the 5G System".
[3]
TS 28.541: "Management and orchestration; 5G Network Resource Model (NRM); Stage 2 and stage 3".
[4]
TS 23.503: "Policy and charging control framework for the 5G System (5GS); Stage 2".
[5]
TS 38.415: "NG-RAN; PDU session user plane protocol".
[6]
TS 38.331: "NR; Radio Resource Control (RRC); Protocol specification".
[7]
TS 23.288: "Architecture enhancements for 5G System (5GS) to support network data analytics services".
[8]
TS 38.314: "NR; Layer 2 Measurements".
[9]
TS 37.320: "Universal Terrestrial Radio Access (UTRA) and Evolved Universal Terrestrial Radio Access (E-UTRA); Radio measurement collection for Minimization of Drive Tests (MDT);Overall description; Stage 2".
[10]
TS 28.532: "Management and orchestration; Generic management services".
[11]
TS 28.622: "Telecommunication management; Generic Network Resource Model (NRM) Integration Reference Point (IRP); Information Service (IS)".
[12]
TS 28.623: "Telecommunication management; Generic Network Resource Model (NRM) Integration Reference Point (IRP); Solution Set (SS) definitions".
[13]
TS 32.422: "Telecommunication management; Subscriber and equipment trace: Trace control and configuration management".
[14]
TS 32.423: "Telecommunication management; Subscriber and equipment trace: Trace data definition and management".
[15]
TS 29.281: "General Packet Radio System (GPRS) Tunnelling Protocol User Plane (GTPv1-U)"
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3  Definitions of terms, symbols and abbreviationsp. 7

3.1  Termsp. 7

For the purposes of the present document, the terms given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.

3.2  Symbolsp. 7

For the purposes of the present document, the following symbols apply:
Void

3.3  Abbreviationsp. 7

For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.

4  Overviewp. 7

The UE level measurements, i.e., the measurements per UE, in addition to the traditional performance measurements which are aggregated for the UEs to a measured object (e.g., a cell), are required to support AI/ML for NG-RAN, and NWDAF analytics.
The UE level measurement is produced by 5GC Network Function or NG-RAN node for a particular UE, and provided by the MnS producer to the authorized consumer(s).

5  UE level measurements collection and reportingp. 7

The UE level measurements are collected by the MnS consumer from MnS producer via the Provisioning MnS (see TS 28.532) through managing the MOI of TraceJob (see TS 28.622, and TS 28.623) with the specific job type(s).
In 5G system, the 5GC UE level measurements collection and reporting are supported by extending the Trace mechanisms for both signalling and management based activation; the NG-RAN UE level measurements collection and reporting is supported by MDT mechanisms for both signalling and management based activation. The Trace Session activation/deactivation, Trace Recording Session start/stop, and 5GC UE level measurements specific configuration parameters, and MDT specific configuration parameters, and 5GC UE level measurements and MDT measurements reporting are specified in TS 32.422. The Trace Record content, and Trace Report file and streaming format for 5GC UE level measurements and MDT measurements are specified in TS 32.423.
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