D2D Sidelink Slice Resource Allocation for QoS
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing D2D communication systems face challenges in meeting the varying quality of service (QoS) requirements of different service applications due to limited physical transmission resources, as they share resources within a single pool.
Innovation Solution
The system divides D2D communication into multiple sidelink slices, each corresponding to a separate physical transmission resource pool, allowing terminals to transmit data using resources specific to their required QoS by establishing sidelinks corresponding to these slices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If D2D communication devices share a physical transmission resource pool to transmit different D2D service applications, then resource utilization is improved, but quality of service requirements of different service applications cannot be met
Solution Approach 1:
The patent segments the physical transmission resource pool into multiple sidelink slices, where each slice is dedicated to specific D2D service applications with similar QoS requirements. This segmentation allows different service types (e.g., URLLC, eMBB, mMTC) to have isolated resource pools that guarantee their specific QoS parameters, while collectively utilizing the entire resource pool efficiently.
Solution Approach 2:
The patent applies local quality by assigning different QoS characteristics to different sidelink slices. Each slice is configured with specific QoS parameters (reliability, latency, throughput) tailored to the service applications it supports. This allows high-reliability services to use slices with appropriate QoS guarantees while low-latency services use slices optimized for speed, rather than forcing all services to share identical resource characteristics.
2Device complexity
If multiple D2D service applications share the same physical transmission resources, then device complexity is reduced, but the system cannot adapt to different QoS requirements
Solution Approach 1:
The patent creates a universal sidelink slice framework that can accommodate multiple D2D service applications with different QoS requirements through a common architecture. The sidelink slice management entity provides multi-functional capabilities including slice selection, resource allocation, and QoS enforcement, allowing the system to handle diverse services (unicast, groupcast, broadcast) across different slices without requiring separate dedicated systems for each service type.
Data Source
Figure 1a~1b
Figure 2~3
Figure 4
AI summary
Embodiments of this application relate to the field of communication technologies, and provide a D2D communication method, apparatus, and system, to resolve a technical problem that quality of service requirements of different service applications cannot be met in existing D2D communication. The method includes: A first terminal establishes a sidelink between the first terminal and a second terminal, where the sidelink corresponds to a sidelink slice; and the first terminal communicates with the second terminal on the sidelink by using a physical transmission resource corresponding to the sidelink slice.