Sidelink Resource Pool Distribution for Wireless Communications
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in sidelink resource allocation, leading to underutilization or overutilization of shared resources, resulting in increased interference and latency, as UEs contend for data resources without a structured approach to prioritize resource access.
Innovation Solution
The proposed method involves UEs determining shared resources for sidelink communications by transmitting sidelink requests and responses to reserve specific segments of data resources, using a priority schedule to manage access and minimize interference, allowing efficient use of available resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If UEs contend for data resources without a structured approach, then resource allocation is flexible and simple, but system efficiency decreases and interference increases
Solution Approach 1:
The patent segments the data resources into multiple resource pools, each associated with a specific priority level. This segmentation allows structured resource allocation while maintaining flexibility, as UEs can select from different priority pools based on their data characteristics. The segmentation resolves the contradiction by providing organization (improving efficiency) without requiring complex centralized management (avoiding excessive complexity).
Solution Approach 2:
The patent implements preliminary action through pre-configured priority schedules that are established before resource allocation begins. These schedules define the priority levels and resource pool associations in advance, allowing UEs to make rapid allocation decisions without real-time complex calculations. This preliminary structure improves system efficiency while keeping the allocation mechanism simple and straightforward.
2Object-affected harmful factors
If UEs use priority schedules to reserve resources, then interference is reduced and resource utilization improves, but the complexity of resource management increases
Solution Approach 1:
The patent divides resources into priority-based segments (resource pools), where each segment has a defined priority level. This segmentation automatically reduces interference by preventing lower-priority transmissions from accessing resources already allocated to higher-priority transmissions. The segmented structure manages interference effectively without requiring complex real-time arbitration mechanisms.
Solution Approach 2:
The patent incorporates feedback mechanisms where UEs report their data characteristics and priority levels, and the system adjusts resource allocation accordingly. This feedback loop enables dynamic adaptation to changing conditions, reducing interference by reallocating resources based on actual usage patterns and priority requirements, while maintaining manageable complexity through automated feedback processing.
3Loss of time
If structured resource reservation is implemented, then latency is reduced through efficient resource access, but the overhead for coordination increases
Solution Approach 1:
The patent uses preliminary action by pre-establishing priority schedules and resource pool mappings before data transmission begins. This allows UEs to quickly determine their allocated resources based on their data characteristics without requiring extensive real-time coordination. The preliminary structure reduces latency by enabling rapid resource access decisions while minimizing coordination overhead through pre-agreed allocation rules.
Solution Approach 2:
The patent segments the resource allocation process into discrete priority levels and resource pools, allowing UEs to independently determine their allocations based on their data characteristics. This segmentation reduces the coordination overhead by breaking down the complex allocation problem into simpler, parallel decisions, thereby reducing latency without proportionally increasing coordination information requirements.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A first UE may transmit a sidelink request to a second UE. The sidelink request may indicate a set or a segment of the data resources. A second UE may transmit a positive sidelink response indicating that the set or the segment of resources is available for reservation, or may refrain from transmitting a positive sidelink response if the set or the segment of the data resources is unavailable for reservation. A third UE may transmit a negative sidelink response indicating that the set or the segment of the data resources is unavailable for reservation, or may refrain from transmitting a negative sidelink response if the set or the segment of the data resources is available for reservation. If the requested data resources are available, then the first UE may transmit a sidelink confirmation reserving the requested data resources.