Sub-RPT Resource Allocation for D2D Collision Reduction
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Solution Overview
Problem
Existing Device-to-Device (D2D) communication technologies face challenges in efficiently allocating resources for data transmission, leading to potential collisions and reduced performance.
Innovation Solution
The proposed method involves generating D2D data corresponding to a transport block unit and transmitting it through D2D communication resources based on a sub-Resource Pattern for Transmission (sub-RPT), which is configured within a D2D resource pool to minimize collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If D2D communication resources are allocated without sub-RPT configuration, then resource allocation is simpler, but transmission capability is reduced and collisions increase
Solution Approach 1:
The RPT is divided into multiple sub-RPTs, where each sub-RPT corresponds to a specific transmission block size range. This segmentation allows the system to select an appropriate sub-RPT based on the actual data size, improving transmission efficiency without requiring complex reconfiguration for different data sizes. The segmentation principle resolves the contradiction by providing a structured approach that balances simplicity and adaptability.
Solution Approach 2:
The sub-RPT configuration enables dynamic selection of resource patterns based on transmission block size. Instead of using a fixed resource allocation scheme, the system dynamically adapts the RPT configuration to match the data transmission requirements, thereby improving transmission capability while maintaining manageable complexity through standardized sub-RPT options.
2Reliability
If traditional RPT is used for resource allocation, then implementation is straightforward, but collisions between D2D transmissions occur frequently
Solution Approach 1:
By dividing the RPT into multiple sub-RPTs with different resource patterns, the system can select the most appropriate pattern based on transmission requirements. This segmentation reduces collisions by distributing transmissions across different resource patterns, thereby improving reliability without requiring complex collision resolution mechanisms.
Solution Approach 2:
The system changes the resource pattern parameters by selecting different sub-RPTs based on transmission block size. This parameter change approach allows the system to adapt resource allocation to different transmission scenarios, reducing collisions while maintaining configuration simplicity through predefined sub-RPT options.
3Productivity
If frequency resources are expanded to handle increased data traffic, then data transmission capacity improves, but frequency resource saturation worsens
Solution Approach 1:
The sub-RPT configuration enables dynamic resource utilization within the available frequency spectrum. By adapting resource patterns to transmission block sizes, the system maximizes the use of existing frequency resources, improving transmission capacity without requiring additional frequency spectrum allocation.
Solution Approach 2:
The system optimizes resource usage by changing allocation parameters through sub-RPT selection. This allows more efficient packing of transmissions within the available frequency resources, effectively increasing capacity without expanding the total frequency resource pool.
Data Source
AI summary
Exemplary embodiments provide a method and apparatus for transmitting data through a device-to-device (D2D) communication between user equipments (UEs), the method including: generating, at a first UE, first D2D data, the first D2D data corresponding to a transport block (TB) unit; and transmitting, from the first UE to a second UE, the first D2D data through at least one D2D communication resource, the at least one D2D communication resource being based on a sub-RPT (sub-resource pattern for transmission). An RPT defined in a D2D resource pool is configured based on the sub-RPT, and the sub-RPT indicates the at least one D2D communication resource for the transmission of the first D2D data among at least two D2D communication candidate resources.