MDT Log Reporting in Multi-Connectivity 5G Networks
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Solution Overview
Problem
In multi-connectivity operation modes of 5G NG-RAN, there is a lack of standardized methods for controlling the collection and retrieval of Minimization of Driving Test (MDT) Logs from User Equipment (UE), which limits the ability to perform simultaneous MDT operations across different Radio Access Technologies (RATs) and complicates network performance optimization.
Innovation Solution
The UE is enabled to execute independent MDT operations configured by multiple master and secondary base stations, utilizing multiple signaling radio bearers to flexibly report MDT Logs, allowing for simultaneous configuration and retrieval across different RAN Nodes, thereby facilitating efficient network performance assessment and optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple master and secondary base stations independently configure MDT operations for UE in multi-connectivity mode, then comprehensive network performance monitoring is achieved, but the complexity of controlling collection and retrieval of MDT Logs increases
Solution Approach 1:
The patent segments the MDT Logs collection and retrieval control by introducing a dedicated MDT Logs available indicator for each configured master and secondary base station. This segmentation allows independent tracking of MDT Logs availability for each RAN Node configuration, simplifying the overall control mechanism while enabling comprehensive monitoring across multiple base stations in multi-connectivity mode.
2Adaptability or versatility
If UE reports MDT Logs through multiple signaling radio bearers simultaneously, then reporting flexibility is improved, but the difficulty of managing multiple reporting paths increases
Solution Approach 1:
The patent applies local quality by configuring different MDT Logs available indicators for different master and secondary base stations. Each base station has its own specific indicator that tracks MDT Logs availability for its configuration, allowing the UE to manage multiple reporting paths efficiently by knowing exactly which logs are available for which base station without overwhelming complexity.
3Ease of operation
If standardized methods for MDT Logs collection and retrieval are established for multi-connectivity mode, then ease of operation is improved, but the device complexity increases due to additional configuration parameters
Solution Approach 1:
The patent implements preliminary action by having the network side pre-configure MDT related parameters including multiple MDT Logs available indicators before the UE performs MDT operations in multi-connectivity mode. This preliminary configuration establishes standardized procedures that simplify subsequent operations, as the UE already knows which indicators to check and how to report MDT Logs availability for each base station.
Data Source
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AI summary
Provided are a Minimization of Driving Test (MDT) Logs reporting method and device, a MDT Logs reporting control method and device, a storage medium, and an electronic device. The MDT Logs reporting method includes: receiving, by UE, first Logged MDT configuration information configured for a master base station, and receiving, by the UE, second Logged MDT configuration information configured for at least one secondary base station, wherein the UE is in a multi-connectivity operation mode in which the UE is connected to the master base station and the at least one secondary base station at the same time; exiting, by the UE, a multi-connectivity operation mode, executing a first Logged MDT operation according to the first Logged MDT configuration information to acquire first MDT Logs, and executing a second Logged MDT operation according to the second Logged MDT configuration information to acquire second MDT Logs; and re-establishing, by the UE, the multi-connectivity operation mode with a current master base station and at least one current secondary base station, and reporting, by the UE, the first MDT Logs and/or the second MDT Logs to the current master base station and/or the at least one current secondary base station.