Content for TR 23.700-91 Word version: 17.0.0
1 Scope
2 References
3 Definitions of terms and abbreviations
3.1 Terms
3.2 Abbreviations
4 Architectural Assumptions
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1 Scope p. 17
The purpose of this Technical Report is to study enhancements for analytics and NWDAF for the following objectives:
- Remaining key issues from Release 16: UE driven analytics; How to ensure that slice SLA is guaranteed; Which data from UPF can be used by NWDAF (e.g. applications, other user data characteristics);
- NWDAF architecture enhancements: Multiple NWDAF Instances in one PLMN including hierarchies, roles and inter-NWDAF instance cooperation;
- NWDAF features enhancement: Enabling real-time or near real-time NWDAF communication, including mechanism for data collection; Service MOS based NWDAF-Assisted UP Optimization; Minimization of the load generated by NWDAF data collection;
- New Use Cases/key issues: Interaction between NWDAF and ML Model & Training Service owned by the operator.
2 References p. 17
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; Stage 2".
[3]
TS 23.502: "Procedures for the 5G System; Stage 2".
[4]
TS 23.503: "Policy and Charging Control Framework for the 5G System; Stage 2".
[5]
TS 23.288: "Architecture enhancements for 5G System (5GS) to support network data analytics services; Stage 2".
[6]
ITU-T Recommendation P.1203.3: "Parametric bitstream-based quality assessment of progressive download and adaptive audiovisual streaming services over reliable transport - Quality integration module".
[7]
TS 38.331: "NR; Radio Resource Control (RRC) protocol specification".
[8]
TS 36.331: "Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification".
[9]
TS 38.215: "NR; Physical layer measurements".
[10]
3GPP TR 23.700-40: "Study on enhancement of network slicing".
[11]
TS 29.510: "Network Function Repository Services; Stage 3".
[12]
TS 26.512: "5G Media Streaming (5GMS)".
[13]
TR 37.816: "Study on RAN-centric data collection and utilization for LTE and NR".
[14]
TR 24.501: "Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3".
[15]
TS 32.255: "Charging management; 5G data connectivity domain charging; stage 2".
[16]
ITU-T Recommendation P.1203.3: "Parametric bitstream-based quality assessment of progressive download and adaptive audiovisual streaming services over reliable transport - Quality integration module".
[17]
TS 23.434: "Service Enabler Architecture Layer for Verticals (SEAL); Functional architecture and information flows".
[18]
TS 29.244: "Interface between the Control Plane and the User Plane Nodes".
[19]
TS 28.552: "Management and orchestration; 5G performance measurements".
[20]
TS 28.310: "Management and orchestration; Energy efficiency of 5G".
[21]
TS 24.502: "Access to the 3GPP 5G Core Network (5GCN) via non-3GPP access networks".
[22]
TS 37.320: "Radio measurement collection for Minimization of Drive Tests (MDT); Overall description; Stage 2".
[23]
TS 28.532: "Management and orchestration; Generic management services".
[24]
TS 28.550: "Management and orchestration; Performance Assurance".
[25]
TS 29.518: "5G System; Access and Mobility Management Services; Stage 3".
[26]
TS 28.554: "5G end to end Key Performance Indicators (KPI)".
[27]
TS 26.501: "5G Media Streaming (5GMS); General description and architecture".
[28]
TR 23.748: "Study on enhancement of support for Edge Computing in 5G Core network (5GC)".
[29]
TS 29.517: "5G System; Application Function (AF) event exposure service; Stage 3".
3 Definitions of terms and abbreviations p. 18
3.1 Terms p. 18
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 Abbreviations p. 18
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.
AR/VR
Augmented Reality/Virtual Reality
ASP
Application Service Provider
OS
Operating System
RFSP
RAT/Frequency Selection Priority
RTT
Round-Trip Time
SLA
Service Level Agreement
SLS
Service Level Specification
4 Architectural Assumptions p. 18
The architecture and framework as specified in TS 23.288, TS 23.501, TS 23.502 and TS 23.503 are regarded as the baseline for the present study.
Solutions shall build on the 5G System architectural principles as in TS 23.501, including flexibility and modularity for newly introduced functionalities.
