RFLTE KPIs: Key Performance Indicators Explained
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This page describes KPI (Key Performance Indicators) basics, including its categories, with a focus on LTE KPIs. We’ll explore different test cases for each KPI category. KPI, as mentioned, is the short form of Key Performance Indicator.
KPIs are valuable tools that can be used for the following tasks:
- To monitor and optimize radio network performance, aiming to provide better subscriber quality and make efficient use of installed network resources.
- To immediately detect unacceptable performance-related issues in the cellular network. This allows operators to take swift action to maintain the quality of existing network services.
- To provide radio frequency planners with detailed information to help them configure network parameters for optimal use.
Typically, KPIs can be categorized into the following subcategories:
- Accessibility
- Retainability
- Integrity
- Availability
- Mobility
What are LTE KPIs?
The following table summarizes KPIs for LTE RAN (Radio Access Network). These are used to measure contributions to subscriber-perceived quality and overall system performance. RAN performance monitoring and control is a very important task for O&M teams and network engineers.
LTE KPI Test Cases
| LTE KPI Category | Test Case | Description |
|---|---|---|
| Accessibility | RRC Connection Establishment | |
| Random Access | ||
| Initial E-RAB Establishment Success Rate | ||
| RRC Connection Establishment Counters | ||
| Initial E-RAB Establishment Success Rate Counters | ||
| Added E-RAB Establishment Success Rate Counters | ||
| Added E-RAB Establishment Success Rate | ||
| S1 Signaling Connection Establishment | ||
| Retainability | MME Initiated E-RAB & UE Context Release with counters Description | UE Session Time |
| RBS Initiated E-RAB & UE Context Release with counters Description | ||
| MME & RBS Initiated UE Context Release Flow Chart | ||
| MME & RBS Initiated E-RAB Release Flow Chart | ||
| Integrity | EUTRAN Throughput KPIs | |
| EUTRAN Latency KPIs | ||
| EUTRAN Packet Loss KPIs | ||
| Mobility | X2 Based Handover Preparation & Execution | |
| Intra RBS Handover Preparation & Execution | ||
| Intra Frequency Handover Preparation & Execution Counters | ||
| S1 Based Handover Preparation & Execution | ||
| Intra-frequency intra-LTE S1 & X2 Handover Flowchart | ||
| Inter Frequency Handover Preparation & Execution Counters | ||
| Inter-frequency intra-LTE S1 & X2 Handover Flowchart | ||
| Availability | Partial cell availability (node restarts excluded) |
In this page, we covered KPI basics, including the definition of KPI, its categories, and LTE KPIs.
