D2D Resource Pool Mapping for Priority Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current Device-to-Device (D2D) transmission systems in wireless communications face challenges in prioritizing transmissions during high traffic conditions, leading to resource pool congestion and collisions, as they lack a mechanism to manage different priorities without modifying existing UE resource allocation procedures.
Innovation Solution
The implementation of a method that maps identified priority levels of D2D transmissions to specific resource pools, allowing devices to select resources within these pools based on priority, thereby managing different priorities and preventing collisions by using multiple resource pools configured for various transmission types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single resource pool is used for D2D transmissions, then the system structure remains simple, but transmission collisions increase during high traffic conditions
Solution Approach 1:
The patent divides the single resource pool into multiple resource pools (first resource pool and second resource pool) with different priority levels. High-priority transmissions use the first resource pool while low-priority transmissions use the second resource pool, segmenting the resource allocation to prevent collisions during high traffic conditions without significantly complicating the overall system structure.
2Reliability
If priority-based resource allocation is implemented, then transmission collisions are reduced, but the complexity of resource allocation procedures increases
Solution Approach 1:
The patent applies different qualities to different resource pools by associating priority levels with specific pools. The first resource pool is designated for high-priority transmissions while the second resource pool is designated for low-priority transmissions, allowing priority-based collision avoidance through local differentiation rather than complex centralized control.
3Reliability
If multiple resource pools are used for different priorities, then transmission collisions are prevented, but the system complexity increases
Solution Approach 1:
The patent makes the resource pool structure multi-functional by enabling a single pool to serve multiple priority levels through configuration. The resource pools can be flexibly assigned to different priority levels based on traffic conditions, allowing the same structural element to handle multiple functions (high-priority and low-priority transmissions) without requiring separate dedicated pools for each scenario.
Data Source
AI summary
A method performed by a first device, for sending data in a Device-to-Device, D2D, transmission to a second device is provided. After the first device has identified a priority level of the D2D transmission, it maps the identified priority level to a resource pool index. The resource pool index identifies a resource pool among a plurality of resource pools associated with different priority levels. The first device then sends the data in the D2D transmission to the second device, using the resources in the resource pool identified by the resource pool index.