NR Sidelink Resource Allocation for Mixed Traffic
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing LTE-based UE autonomous resource allocation method in sidelink communication systems is limited in supporting various types of traffic, particularly failing to effectively manage periodic and aperiodic traffic coexistence, and does not consider quality of service (QoS) requirements beyond latency, such as reliability and data rate, in Next-Generation Radio (NR) systems.
Innovation Solution
A method and device for UE autonomous resource allocation in NR sidelink communication, which involves receiving sidelink control information from a receiving terminal, identifying a retransmission scheme, determining a threshold for transmission resource selection based on the information, and performing sidelink measurements to select resources, enabling flexible resource allocation that supports various traffic types and QoS requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If LTE-based UE autonomous resource allocation method is used, then resource allocation is simple, but it cannot support various types of traffic and QoS requirements
Solution Approach 1:
The patent introduces dynamic resource allocation mechanisms where UEs can adaptively select resources based on traffic type and QoS requirements. The system transitions from static LTE-based allocation to dynamic NR-based allocation that considers multiple parameters including latency, reliability, and data rate, allowing the resource allocation behavior to change dynamically according to service needs
Solution Approach 2:
The patent changes multiple allocation parameters simultaneously including time resources, frequency resources, spatial resources, and QoS parameters. By introducing new parameters such as reliability thresholds, data rate requirements, and multi-dimensional resource selection criteria, the system achieves versatile traffic support while managing complexity through structured parameter optimization
2Reliability
If traditional resource allocation is used, then latency is managed, but other QoS requirements like reliability and data rate are not considered
Solution Approach 1:
The patent performs preliminary QoS parameter configuration and resource reservation before actual data transmission. UEs pre-assess reliability requirements, data rate needs, and latency constraints, then proactively select and reserve appropriate resources in advance, ensuring QoS requirements are met before transmission begins rather than reacting after failures occur
Solution Approach 2:
The patent implements feedback mechanisms where UEs monitor transmission outcomes including reliability metrics, achieved data rates, and latency performance. This feedback is used to adjust future resource allocation decisions, creating a closed-loop system that continuously optimizes QoS performance while adapting to changing channel conditions and traffic patterns
3Productivity
If periodic and aperiodic traffic are handled separately, then each traffic type is managed simply, but overall system efficiency is reduced
Solution Approach 1:
The patent creates a universal resource allocation framework that handles both periodic and aperiodic traffic through the same QoS-aware mechanism. The system uses a unified resource selection process that adapts to different traffic types by adjusting QoS parameters rather than maintaining separate allocation procedures, achieving multi-functionality in a single allocation system
Solution Approach 2:
The patent merges periodic and aperiodic traffic management into a single integrated resource allocation process. By combining the resource selection criteria for both traffic types under a common QoS framework, the system eliminates the inefficiencies of separate handling while managing complexity through unified parameter optimization and shared resource pools
Data Source
AI summary
Methods and apparatuses are provided in which sidelink control information (SCI) including information on a resource occupied by a receiving terminal, is received at a transmitting terminal, from the receiving terminal. A retransmission scheme of the transmitting terminal is identified. Based on the identified transmission scheme, a threshold is determined for transmission resource selection for a resource identified based on the information on the resource. The transmission resource selection is performed according to a sidelink measurement for the identified resource. The sidelink measurement is performed based on the determined threshold.