NR Sidelink Multi-Panel Feedback Scheduling for Low-Interference V2X
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Solution Overview
Problem
The increasing demand for mobile broadband communication with enhanced reliability and low latency in wireless communication systems, particularly in vehicle-to-everything (V2X) scenarios, poses challenges in managing the overhead of evolved NodeBs and optimizing sidelink communication between devices.
Innovation Solution
The proposed method involves performing multiple physical sidelink shared channel receptions and feedback channel transmissions, with priority-based spatial settings to optimize resource allocation and enhance communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple PSFCH transmissions are performed simultaneously without priority-based spatial settings, then communication capacity is increased, but interference between transmissions increases and resource utilization deteriorates
Solution Approach 1:
The patent applies local quality by assigning different spatial settings (beams) to different PSFCH transmissions based on their priority levels. High-priority transmissions use specific spatial settings while low-priority transmissions use other spatial settings, creating localized quality differentiation in the transmission space. This resolves the contradiction by allowing multiple simultaneous transmissions (maintaining productivity) while minimizing interference through spatial separation (reducing harmful factors).
Solution Approach 2:
The patent implements dynamics by dynamically selecting spatial settings based on real-time priority assessments of PSFCH transmissions. The system adapts the spatial configuration according to the urgency and importance of different feedback transmissions, rather than using fixed spatial assignments. This dynamic approach enables the system to optimize resource utilization while managing interference adaptively across varying traffic conditions.
2Reliability
If priority-based spatial settings are applied to PSFCH transmissions, then resource utilization and reliability are improved, but system complexity increases
Solution Approach 1:
The patent applies segmentation by dividing PSFCH transmissions into different priority levels (high priority and low priority) and assigning distinct spatial settings to each segment. This segmentation simplifies the management complexity by creating clear categories with predetermined spatial configurations, rather than requiring complex continuous optimization. The segmented approach maintains reliability by ensuring high-priority transmissions receive appropriate spatial resources while reducing overall system complexity through structured classification.
3Quantity of substance
If multiple PSSCH receptions are performed from multiple devices, then data traffic capacity is increased, but overhead management becomes more difficult
Solution Approach 1:
The patent applies universality by using a unified priority-based spatial setting mechanism that handles multiple PSSCH receptions from different devices through a common framework. Instead of requiring separate management mechanisms for each device or transmission, the system uses a universal priority assessment and spatial assignment approach that works across all sidelink communications. This multi-functional approach increases data traffic capacity by accommodating multiple simultaneous receptions while keeping overhead management relatively simple through the universal mechanism.
Data Source
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AI summary
Proposed is an operating method of a first device (100) in a wireless communication system. The method may comprise the steps of: determining N PSFCH transmissions to be transmitted on at least one resource included in a first PSFCH transmission opportunity; and performing the N PSFCH transmissions on the basis of the at least one resource and a first spatial configuration for the smallest value among at least one priority value related to the N PSFCH transmissions.