Sidelink Quality Logging by Scheduling Mode
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Solution Overview
Problem
Current wireless communication systems lack an effective method to report sidelink quality information from user equipment (UE) to a base station (eNB), which is crucial for determining smooth performance in various areas and situations, especially in device-to-device (D2D) and vehicle-to-everything (V2X) communications.
Innovation Solution
A method and apparatus for reporting logged quality information of sidelink signals by UE in a wireless communication system, where quality information is measured and logged based on scheduling modes, including proximity service (ProSe) per-packet priority and reliability, and various parameters such as block error ratio, packet reception ratio, reference signal strength, and channel busy ratio, and then reported to the eNB.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If quality information is logged separately according to scheduling modes, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent segments quality information logging by scheduling modes (first scheduling mode with eNB resource allocation and second scheduling mode with UE autonomous selection). This segmentation allows separate logging and reporting for each mode, improving measurement precision while managing complexity through structured organization of logging parameters and procedures for different scheduling scenarios
Solution Approach 2:
The patent applies local quality by configuring different logging parameters and quality metrics according to specific scheduling modes and service requirements. Each scheduling mode can have tailored quality information logged (e.g., different parameters for ProSe per-packet priority and reliability), allowing optimized measurement precision for each local context without uniformly increasing complexity across all operations
2Productivity
If detailed quality metrics are reported to eNB, then network efficiency is improved, but loss of information increases due to reporting overhead
Solution Approach 1:
The patent extracts and reports only essential quality information to the eNB based on scheduling modes and service requirements. By selectively logging and reporting specific quality metrics (such as ProSe per-packet priority and reliability) rather than all possible parameters, the system improves network efficiency with relevant data while minimizing information loss through optimized reporting overhead
Solution Approach 2:
The patent implements partial action by reporting quality information selectively based on scheduling mode and service type. Not all quality metrics are reported in all scenarios - only those relevant to the specific scheduling mode (first or second mode) and service requirements are logged and reported, reducing overall reporting overhead while maintaining network efficiency for critical quality aspects
Data Source
AI summary
Methods for reporting logged information by a user equipment (UE) and a UE reporting logged information for sidelink communications. The measurement information includes a reference signal received power (RSRP) and a reference signal received quality (RSRQ) independently measured and logged for each Proximity Service Per-Packet Priority (PPPP). Reporting the logged information is based on a transmission delay higher than a threshold configured for the each PPPP.