Sidelink Resource Allocation via Candidate Frequency Band Lists
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Solution Overview
Problem
The current 5G system lacks a scheme for resource selection of the sidelink communication interface, which is essential for efficient communication in V2X services such as Vehicle-To-Everything (V2X), leading to inefficiencies in resource allocation.
Innovation Solution
A resource allocation method and device that generates a candidate frequency band resource list for sidelink communication services, allocating resources based on Sub-Carrier Spacings (SCS), Quality of Service (QoS) parameters, capability information, and data volume, allowing for network scheduling or terminal self-selection modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If resource allocation for sidelink communication interface is not implemented, then the system complexity remains low, but communication efficiency deteriorates
Solution Approach 1:
The patent segments resource allocation into two distinct modes: network scheduling mode where the base station allocates resources, and terminal self-selection mode where terminals autonomously select resources. This segmentation allows the system to achieve efficient resource allocation while managing complexity through modular design, as each mode can be independently implemented and optimized.
Solution Approach 2:
The patent implements preliminary action by pre-configuring resource pools and parameters through high-layer signaling before actual sidelink communication occurs. This allows terminals to have resource allocation rules and parameters ready in advance, enabling efficient communication without real-time complex calculations, thus improving communication efficiency while keeping system complexity manageable.
2Measurement precision
If resource allocation is centralized through network scheduling, then resource allocation accuracy improves, but system complexity and signaling overhead increase
Solution Approach 1:
The patent implements a dynamic resource allocation mechanism where the network can flexibly switch between network scheduling mode and terminal self-selection mode based on service requirements and network conditions. This dynamic approach allows the system to achieve high allocation accuracy when needed while reducing complexity through autonomous terminal operation in other scenarios, optimizing the balance between accuracy and complexity.
3Device complexity
If resource allocation is decentralized through terminal self-selection, then system complexity reduces, but resource allocation efficiency deteriorates
Solution Approach 1:
The patent implements self-service through terminal self-selection mode where terminals autonomously select resources from pre-configured pools based on local measurements and service requirements. This self-service mechanism reduces system complexity by eliminating the need for centralized scheduling while maintaining efficient resource allocation through terminal intelligence and local optimization.
4Adaptability or versatility
If multiple frequency band resources are allocated, then resource allocation flexibility improves, but resource management complexity increases
Solution Approach 1:
The patent segments frequency band resources into multiple resource pools, each configured with specific parameters and characteristics. This segmentation allows the system to allocate different types of resources for different service requirements, improving flexibility while managing complexity through organized resource categorization and dedicated pool management.
Solution Approach 2:
The patent creates a universal resource pool configuration mechanism that can serve multiple purposes and service types. The same resource pool structure and management framework can accommodate different frequency bands, service requirements, and allocation modes, providing multi-functionality that improves flexibility without proportionally increasing management complexity.
Data Source
AI summary
Disclosed in the embodiments of the present application are a resource allocation method and device. When implementing resource allocation, the embodiments of the present application includes: for a logical channel corresponding to any one sidelink communication service, a protocol layer responsible for resource allocation of a sidelink communication interface generates a candidate frequency band resource list corresponding to the logical channel; the protocol layer allocates resources to the logical channel corresponding to the sidelink communication service from the candidate frequency band resource list.