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  ITU-T A.5 justification information for referenced document ETSI TS 128 554 V19.7.0 (2026-04) in draft L.1331
1. Clear description of the referenced document:
Name: ETSI TS 128 554 V19.7.0 (2026-04)
Title: 5G; Management and orchestration; 5G end to end Key Performance Indicators (KPI) (3GPP TS 28.554 version 19.7.0 Release 19)
2. Status of approval:
Approved standard
3. Justification for the specific reference:
Needed for implemeting the Rec.
4. Current information, if any, about IPR issues:
https://www.etsi.org/resources/intellectual-property-rights/
5. Other useful information describing the "Quality" of the document:
Well known standard.
6. The degree of stability or maturity of the document:
Mature
7. Relationship with other existing or emerging documents:
None
8. Any explicit references within that referenced document should also be listed:
[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications". [2] Void. [3] ITU-T Recommendation E.800: "Definitions of terms related to quality of service". [4] 3GPP TS 24.501: " Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3". [5] 3GPP TS 38.331: "NR; Radio Resource Control (RRC); Protocol specification". [6] 3GPP TS 28.552: "Management and orchestration; 5G performance measurements". [7] 3GPP TS 23.501: " System Architecture for the 5G System; Stage 2". [8] ETSI ES 203 228 V1.2.1 (2017-04): "Environmental Engineering (EE); Assessment of mobile network energy efficiency". [9] 3GPP TS 28.310: "Management and orchestration; Energy efficiency of 5G". [10] ETSI 202 336-12 V1.2.1 (2019-02): "Environmental Engineering (EE); Monitoring and control interface for infrastructure equipment (power, cooling and building environment systems used in telecommunication networks); Part 12: ICT equipment power, energy and environmental parameters monitoring information model". [11] TSI GS NFV-IFA 027 V4.0.2 (2020-11): "Network Functions Virtualisation (NFV) Release 4; Management and Orchestration; Performance Measurements Specification". [12] GPP TS 38.314: "NR; layer 2 measurements". [13] 3GPP TS 22.261: "Service requirements for the 5G system". [14] 3GPP TS 38.214: "NR; Physical layer procedures for data". [15] 3GPP TS 38.321: "NR; Medium Access Control (MAC) protocol specification". [16] 3GPP TS 38.473: "NG-RAN; F1 Application Protocol (F1AP)". [17] 3GPP TS 28.318: "Management and Orchestration; Network and Service Operations for Energy Utilities (NSOEU)". [18] 3GPP TS 28.313: "Management and orchestration; Self-Organizing Networks (SON) for 5G networks". [19] 3GPP TS 37.340: "Evolved Universal Terrestrial Radio Access (E-UTRA) and NR; Multi connectivity; Overall Description; Stage 2". [20] 3GPP TS 28.622: "Telecommunication management; Generic Network Resource Model (NRM) Integration Reference Point (IRP); Information Service (IS)".
9. Qualification of ETSI:
ETSI is recognized under the provisions of ITU-T Recommendations A.5 and A.6. Qualifying information is on file at TSB.
10. Other (for any supplementary information):
Note: This form is based on Recommendation ITU-T A.5