Dynamic D2D Resource Pool Prioritization for Wireless Networks
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Solution Overview
Problem
Conventional strategies for prioritizing device-to-device (D2D) resource pools in wireless communication networks often result in underutilization or overutilization, leading to congestion, as static mappings do not adapt to changing network loads and user priorities.
Innovation Solution
Implementing dynamic prioritization of D2D resource pools, where pool priorities overlap according to specific rules, allowing all resources to be available to all users when no high-priority users are communicating, and reserving portions of each resource pool for users with particular priorities when mixed priorities are present, based on load thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If static mapping strategies are used for D2D resource pool prioritization, then implementation is simple, but resource utilization is poor leading to congestion or underutilization
Solution Approach 1:
The patent implements dynamic prioritization where resource pool priorities are adjusted based on real-time network conditions and user device priorities. The network entity determines updated priorities for D2D resource pools based on current traffic patterns, user requirements, and network load, transforming the static mapping into a dynamic adaptation mechanism that optimizes resource utilization while maintaining manageable complexity through centralized control.
2Productivity
If dynamic prioritization is implemented, then resource utilization improves, but system complexity increases
Solution Approach 1:
The patent introduces a network entity as an intermediary that centralizes the complex prioritization logic. This intermediary receives information about user device priorities and network conditions, then determines updated resource pool priorities without requiring complex distributed algorithms at each user equipment. The intermediary absorbs the system complexity while enabling dynamic adaptation, resolving the contradiction between improved resource utilization and increased system complexity.
Solution Approach 2:
The implementation uses feedback mechanisms where the network entity continuously monitors network conditions and user device priorities, then adjusts resource pool priorities accordingly. This feedback loop enables dynamic optimization of resource allocation based on actual network state, improving resource utilization while keeping the complexity manageable through iterative adjustment rather than complex predetermined rules.
3Reliability
If resources are reserved for high priority users, then service quality for priority users improves, but overall resource availability decreases
Solution Approach 1:
The patent implements dynamic resource allocation where the amount of resources reserved for high-priority users is not fixed but adapts based on current network conditions and the number of priority users. When network load is low or few priority users are present, more resources remain available for general use. When high-priority traffic increases, the system dynamically allocates additional resources to maintain service quality, thus resolving the contradiction between guaranteed quality and overall availability through adaptive management.
Data Source
AI summary
According to some embodiments, a method of device-to-device (D2D) communication in a wireless communication network comprises a wireless device determining a division of a set of resources allocated for D2D communication into a plurality of regions. Each region of the plurality of regions is associated with a priority level, and the set of resources comprises a plurality of resource pools. Using a priority of the first wireless device and the division of the set of resources, the first wireless device determines one or more resources from the plurality of resource pools for transmission of a communication from the wireless device. The wireless device transmits the communication to another wireless device using the determined one or more resources.