MDT Measurement Report Combining Across DU and CU Network Nodes
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Solution Overview
Problem
The challenge in 5G networks is how multiple entities in the access network, such as DU and CU-UP/CU-CP, report MDT measurements effectively, especially when a UE is configured with dual connections, and how primary and secondary base stations coordinate these reports.
Innovation Solution
A method for reporting MDT measurements involving a first access network node that obtains configuration information, performs measurements, combines reports from multiple nodes, and transmits a combined report to a destination node, or receives and combines reports from other nodes, addressing the coordination of MDT measurements across multiple entities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple access network entities (DU and CU-UP/CU-CP) perform MDT measurements independently, then each entity can obtain local measurement data, but the measurement results are incomplete and cannot reflect the overall network performance
Solution Approach 1:
The patent combines measurement reports from multiple access network entities (DU and CU-UP/CU-CP) into a unified report. The combining entity aggregates MDT measurement results from different nodes, ensuring complete network performance assessment while managing coordination through standardized reporting procedures.
2Productivity
If each access network entity transmits its measurement report separately to the measurement center, then data transmission is straightforward, but data interaction overhead increases and efficiency decreases
Solution Approach 1:
The patent merges individual measurement reports from multiple entities into a single combined report before transmission to the measurement center. This reduces the number of separate data interactions, lowering overhead and improving reporting efficiency while maintaining all necessary measurement data.
3Adaptability or versatility
If the RAN architecture is separated into DU and CU entities, then functional flexibility and network performance improve, but the complexity of coordinating MDT measurements and reports increases
Solution Approach 1:
The patent introduces a combining entity that acts as an intermediary to coordinate MDT measurement reporting among DU and CU entities. This mediator aggregates reports from separated functional entities, managing the coordination complexity while preserving the architectural flexibility and functional benefits of the separated RAN structure.
4Loss of information
If MDT measurement reports from multiple entities are combined, then complete measurement results are achieved, but the processing complexity at the combining entity increases
Solution Approach 1:
The patent combines measurement reports from multiple entities at a designated combining entity, ensuring complete measurement information is captured. The combining process integrates data from DU and CU entities systematically, achieving comprehensive network performance measurement while distributing processing tasks to manage complexity.
Data Source
AI summary
The embodiment of the present disclosure provides a method for reporting and configuring MDT measurement, apparatus and electronic device using the same and medium. The method may be performed by a first access network node and includes: obtaining first MDT configuration information; performing MDT measurement according to the first MDT configuration information to obtain a first MDT measurement report; transmitting the first MDT measurement report to a first node, so that the first node combines a second MDT measurement report associated with the first MDT measurement report obtained by the first node with the first MDT measurement report; and/or receiving a third MDT measurement report transmitted by a second access network node, combining the third MDT measurement report and the first MDT measurement report, and transmitting the combined measurement report to a second node. The solution provided in the embodiment of the present disclosure provides an implementation method of reporting MDT measurement when performing MDT measurement at multiple nodes.