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Here are the most important 4G/LTE KPIs, along with examples and references to Huawei Radio Access Network (RAN) equipment and platforms:
1. Accessibility
Accessibility KPIs measure the ability of users to access the network services. Key metrics include:
- RRC Setup Success Rate: The ratio of successful Radio Resource Control (RRC) connection setups to the total attempts. A high success rate indicates good network accessibility.
- E-RAB Setup Success Rate: The ratio of successful Evolved Radio Access Bearer (E-RAB) setups to the total attempts. This is critical for ensuring that users can establish data sessions.
Example: Huawei's eNodeB equipment supports advanced algorithms to optimize RRC and E-RAB setup success rates, ensuring high accessibility for users.
2. Retainability
Retainability KPIs measure the network's ability to maintain established connections. Key metrics include:
- Call Drop Rate: The percentage of calls that are dropped unexpectedly. Lower rates indicate better network stability.
- E-RAB Drop Rate: The percentage of E-RABs that are dropped. This is crucial for maintaining ongoing data sessions.
Example: Huawei's eRAN solutions include features to minimize call and E-RAB drop rates, enhancing user experience by reducing interruptions.
3. Mobility
Mobility KPIs assess the network's performance during user movement. Key metrics include:
- Handover Success Rate: The ratio of successful handovers to the total handover attempts. High success rates are essential for seamless connectivity.
- Inter-RAT Handover Success Rate: The success rate of handovers between different radio access technologies (e.g., from LTE to 3G).
Example: Huawei's RAN equipment supports efficient handover mechanisms, ensuring smooth transitions between cells and technologies.
4. Throughput
Throughput KPIs measure the data transfer rates in the network. Key metrics include:
- User Throughput: The average data rate experienced by users. Higher throughput indicates better network performance.
- Cell Throughput: The total data rate handled by a cell. This is important for assessing the capacity of the network.
Example: Huawei's platforms utilize advanced scheduling and interference management techniques to maximize both user and cell throughput.
5. Latency
Latency KPIs measure the delay experienced in the network. Key metrics include:
- Access Latency: The time taken to establish a connection. Lower latency is critical for real-time applications.
- Service Latency: The delay experienced during data transmission. Lower service latency improves user experience for applications like video streaming and online gaming.
Example: Huawei's eNodeB equipment is designed to minimize latency, ensuring quick response times for various services.
References to Huawei Platforms
Huawei's eRAN solutions, including eNodeB and other RAN equipment, are designed to optimize these KPIs. They offer comprehensive tools for monitoring and improving network performance, such as:
- Huawei iManager U2020: A unified network management system that provides real-time KPI monitoring and analysis.
- Huawei eRAN11.1 and eRAN12.0: These versions include enhancements for KPI optimization, focusing on accessibility, retainability, mobility, throughput, and latency.
By focusing on these KPIs and leveraging Huawei's advanced RAN equipment and platforms, network operators can ensure high-quality service and an excellent user experience.