Base Station MDT Reporting for KPI Degradation
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Solution Overview
Problem
Current Minimization of Drive Tests (MDT) measurement methods in wireless communications systems lead to increased reporting overheads, reduced uplink service quality, and low network problem processing efficiency due to resource and time constraints on uplink channels, as well as concentrated network impact during data forwarding.
Innovation Solution
A method and system that involve a first base station receiving service messages from user equipment, generating minimized network test measurement information, and sending it to an Operation Support System (OSS) to determine Key Performance Indicator (KPI) degradation causes, reducing the need for direct UE reporting and minimizing network impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If UE reports MDT measurement information using shared uplink channel, then MDT measurement can be performed, but uplink service quality is affected due to occupied resources and time
Solution Approach 1:
The patent segments the MDT measurement information reporting from the regular uplink service data transmission. Instead of using the shared uplink channel for both purposes, the patent establishes a separate reporting mechanism where the base station collects measurement information directly from multiple UEs and reports to OSS, separating the measurement reporting function from the service data function.
Solution Approach 2:
The base station acts as an intermediary between UEs and OSS for MDT measurement information. Rather than UEs directly reporting to OSS (which would require uplink resources), the base station collects measurement data from UEs during normal operation and forwards aggregated information to OSS, eliminating the need for dedicated UE-to-OSS uplink channels.
2Loss of information
If large amount of MDT measurement information is reported from UE to base station and then to OSS, then comprehensive measurement data is collected, but network problem processing efficiency is low due to concentrated network impact
Solution Approach 1:
The patent merges the collection of MDT measurement information from multiple UEs at the base station before forwarding to OSS. Instead of each UE independently reporting large amounts of data to OSS (which would create concentrated network impact), the base station aggregates measurement information from multiple sources and sends consolidated data to OSS, reducing overall network traffic and improving processing efficiency.
Solution Approach 2:
The patent implements partial reporting by selectively transmitting only the most relevant MDT measurement information to OSS rather than forwarding all raw measurement data from UEs. The base station processes and filters measurement information, sending only essential data needed for KPI degradation analysis, thereby reducing network load while maintaining sufficient information for problem diagnosis.
3Measurement precision
If UE performs MDT measurement and reports service information separately, then measurement accuracy is maintained, but reporting overheads increase and uplink resources are consumed
Solution Approach 1:
The patent merges the MDT measurement information collection with the base station's existing network management functions. The base station utilizes its existing signaling and data collection mechanisms to gather measurement information from UEs during normal operation, rather than requiring separate dedicated reporting procedures. This integration eliminates redundant reporting overhead while preserving measurement accuracy.
Solution Approach 2:
The base station performs self-service by autonomously collecting, processing, and managing MDT measurement information from UEs without requiring additional uplink resources from UEs. The base station utilizes its existing capabilities to extract measurement data from received signals and messages, thereby eliminating the need for UE-initiated separate reporting procedures and reducing overall system overhead.
Data Source
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AI summary
Embodiments of the present invention provide a method for determining a KPI degradation cause and an apparatus, which relate to the communications field, can reduce reporting overheads of a UE, ensure quality of an uplink service performed by the UE, decrease impact of reported measurement information on a network, and improve network problem processing efficiency. The method may include: receiving, by a first base station, a service message sent by a UE, where the service message carries first measurement information, the first measurement information is information about a service measurement performed by the UE on a first cell, and the first cell is served by the first base station; obtaining, by the first base station, the first measurement information according to the service message; generating, by the first base station, MNT measurement information according to the first measurement information; and sending, by the first base station, the MNT measurement information to an OSS, where the MNT measurement information is used by the OSS for determining the KPI degradation cause.