5G Terminal Measurement Reporting for Sidelink and Uu Link Quality
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Solution Overview
Problem
Current communication technologies face challenges in efficiently reporting measurement results for sidelink and Uu links in 5G networks, particularly in NR sidelink transmissions, which affect relay selection and quality assessment in ProSe scenarios.
Innovation Solution
A method and system for terminal devices and network nodes to obtain and transmit measurement results for sidelink (PC5) and Uu links using unified or separate measurement configurations, including RSRP, RSRQ, RSSI, SINR, and channel occupancy, to support relay reselection and quality assessment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate measurement configurations are used for sidelink and Uu links, then measurement precision for each link is improved, but device complexity increases
Solution Approach 1:
The patent divides measurement configurations into separate configurations for sidelink measurements and Uu link measurements. Each configuration type contains link-specific parameters and measurement objects tailored to the characteristics of that particular link type, enabling precise measurement while maintaining clear organizational structure.
Solution Approach 2:
The patent introduces a unified measurement reporting framework that can handle both sidelink and Uu link measurements through a common reporting structure. The measurement report can include results from both link types using standardized fields, reducing the need for entirely separate reporting mechanisms.
2Device complexity
If unified measurement configuration is used for sidelink and Uu links, then device complexity is reduced, but measurement precision for specific link characteristics deteriorates
Solution Approach 1:
The measurement configuration is segmented into common measurement parameters that apply to both link types and link-specific measurement parameters. This allows the system to maintain a unified configuration structure while still capturing the unique characteristics of each link type through dedicated parameter fields.
Solution Approach 2:
The patent adds a dimensional layer to the measurement configuration by introducing link-type identifiers and conditional parameter fields. This allows the unified configuration to differentiate between sidelink and Uu link measurements without requiring entirely separate configuration structures, thereby maintaining both simplicity and precision.
3Measurement precision
If multiple measurement parameters (RSRP, RSRQ, RSSI, SINR) are reported simultaneously, then quality assessment accuracy is improved, but loss of time for measurement reporting increases
Solution Approach 1:
The patent implements measurement filtering and pre-processing at the measurement collection stage. Relevant measurement parameters are identified and prepared in advance based on current link conditions and quality requirements, so that only necessary measurements need to be processed and reported, reducing overall reporting time while maintaining accuracy.
Solution Approach 2:
The system selectively reports measurement parameters based on current quality thresholds and link conditions. Instead of always reporting all available measurements, the system reports only those parameters that exceed certain significance thresholds or are relevant to current quality assessment needs, reducing reporting overhead while maintaining sufficient accuracy.
Data Source
AI summary
The present disclosure provides a method (800) in a first terminal device. The method (800) includes: obtaining (810) a first measurement result for a first link between the first terminal device and a second terminal device and/or a second measurement result for a second link between the first terminal device and a network node; and transmitting (820) the first measurement result and/or the second measurement result. The first measurement result and/or the second measurement result is obtained by measuring the first link and/or the second linkby the first terminal device, or receiving from the second terminal device the first measurement result and/or the second measurement result as obtained by measuring the first link and/or the second link by the second terminal device.