YD/T 4288-2023 in English
VALID5G network management technology requires key performance indicators
- Issued on:2023-04-21
- Implemented on:2023-08-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$243.00
本文件规定了5G网络和网络切片的关键性能指标（KPI）。
本文件适用于5G网络的运维管理。
Introduction
Analysis of the Standard Framework
| Indicator Category | Core Indicator | Measurement Object | Applicable Scenarios |
|---|---|---|---|
| Access Category | Radio Access Success Rate, Network Slice Registration Success Rate | Cell/AMF | SA/NSA |
| User Perception Category | Average Uplink and Downlink Throughput | Cell | NR |
| Utilization Category | Channel Occupancy, Spectrum Efficiency | Cell/Base Station | MIMO scenario |
Detailed explanation of key technical indicators
6.1.1 Wireless access success rate
This indicator is calculated by multiplying the three-level success rates: RRC connection establishment success rate × NG interface connection success rate × QoS Flow establishment success rate. Typical measurement formula:
gNB devices need to report RRC.AttConnEstab (number of attempts) and RRC.SuccConnEstab (number of successes) every 15 minutes.
6.3.1.4 MIMO Cell PRB Utilization
Innovatively introduces space division factor calculation:
| Resource type | Calculation formula | Sampling period |
|---|---|---|
| Downlink PDSCH | ∑(number of PRBs in each layer)/(available PRBs×average maximum number of layers) | slot level |
| Uplink PUSCH | ∑(number of PRBs in each layer)/(available PRBs×average maximum number of layers) | slot level |
Standard Evolution Analysis
Compared with the KPI system of the 4G era, this standard highlights three major innovations:
- Network slicing dimension: Added slice instance registration success rate indicator (6.1.2)
- Energy efficiency management: Introduced energy efficiency indicator (6.3.3) for the first time, unit: bit/kWh
- MIMO optimization: Hierarchical statistics of PRB utilization (6.3.1.4-6.3.1.5)
Implementation recommendations
Data collection specifications
- It is recommended to use a 1-minute granularity for delay-sensitive indicators (such as handover success rate)
- A 15-minute granularity for resource indicators (PRB utilization)
- The associated indicators of AMF and gNB need to be recorded synchronously
Threshold Setting
| Indicator Type | Warning Threshold | Critical Threshold |
|---|---|---|
| Radio Access Success Rate | 98% | 95% |
| PDCCH Occupancy Rate | 85% | 90% |
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