Event Triggered Measurement Reporting in 5G NR
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Solution Overview
Problem
Current wireless communication systems, such as 5G NR, face challenges in optimizing data rate, latency, and mobility, particularly in event-triggered measurement reporting, which leads to inefficiencies in signal quality assessment and resource allocation.
Innovation Solution
The method involves a User Equipment (UE) determining if a specific scheduling request configuration is set, transmitting a scheduling request to a base station based on certain signal quality conditions, and then transmitting measurement reports on allocated uplink resources, potentially overlapping with resources for content transmission, to enhance event-triggered measurement reporting efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If measurement reports are transmitted continuously or frequently, then the network has more information for optimization, but signaling overhead increases and resource allocation becomes inefficient
Solution Approach 1:
The patent extracts only the essential measurement information that triggers mobility events (such as when a neighboring cell becomes the best cell or when handover conditions are met) and transmits only these critical reports, rather than continuously reporting all measurement data. This selective extraction reduces signaling overhead while preserving necessary information for network optimization.
Solution Approach 2:
The patent implements periodic measurement reporting where the UE reports measurements at specific intervals or when certain conditions are met (such as when signal quality thresholds are crossed or when handover is triggered). This periodic action pattern reduces the frequency of reporting compared to continuous reporting, thereby reducing signaling overhead while maintaining effective network optimization.
2Loss of energy
If measurement reporting is event-triggered based on signal quality conditions, then signaling overhead is reduced, but the timing and reliability of report transmission may be affected
Solution Approach 1:
The patent implements a feedback mechanism where the UE monitors signal quality conditions continuously and triggers measurement reports when specific events occur (such as when a neighboring cell becomes the best cell or when handover conditions are met). This feedback-based approach ensures reliable transmission of measurement information at critical moments while reducing overall signaling overhead by reporting only when necessary.
Solution Approach 2:
The patent performs preliminary measurements and condition assessments before triggering a report transmission. The UE evaluates whether measurement reporting should be triggered based on pre-configured conditions (such as signal quality thresholds or mobility event criteria) before actually transmitting the report. This preliminary action ensures that reports are transmitted reliably when needed while avoiding unnecessary signaling.
3Productivity
If uplink resources are allocated for measurement reports, then measurement reporting efficiency is improved, but resource conflicts with content transmission may occur
Solution Approach 1:
The patent implements dynamic resource allocation where the network dynamically assigns uplink resources for measurement reports based on current system conditions and traffic patterns. The resource allocation is flexible and can be adjusted in real-time to avoid conflicts with content transmission, allowing the system to adapt to changing conditions while maintaining efficient measurement reporting.
Solution Approach 2:
The patent segments uplink resources into dedicated measurement report channels and content transmission channels, allowing both functions to operate simultaneously without conflict. By separating these functions into distinct resource segments, the system can allocate resources efficiently for measurement reporting while maintaining flexibility for content transmission, resolving the contradiction between productivity and adaptability.
Data Source
AI summary
Methods and devices for event triggered measurement reporting are provided. The method includes determining whether a specific scheduling request (SR) configuration is configured to the UE. In a case that the specific SR configuration is configured to the UE, the method transmits, to a base station (BS), an SR according to the specific SR configuration in response to a fulfillment of a condition. The method receives, from the BS, downlink control information (DCI) indicating a first uplink (UL) resource for transmitting a measurement report, and transmits, to the BS, the measurement report on the first UL resource.