Multi-Level Resource Pool Allocation for D2D Communication
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently determining resources for device-to-device (D2D) communication, particularly in managing resource allocation and minimizing interference, especially in emergency situations where rapid resource selection is critical.
Innovation Solution
A method and apparatus for determining D2D communication resources by configuring a resource pool in multiple levels, allowing user equipment (UE) to select resources based on configuration information received from a base station, with the ability to dynamically adjust resource levels based on D2D traffic load and signal importance, thereby reducing the likelihood of resource collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single resource pool is used for D2D communication, then resource allocation is simple, but resource collisions increase under high traffic load
Solution Approach 1:
The patent divides the resource pool into multiple levels (first level, second level, third level) based on traffic load conditions. Each level contains different resource configurations, allowing the system to segment resources according to demand intensity and select appropriate levels dynamically, thereby reducing resource collisions while maintaining manageable complexity.
2Quantity of substance
If resource pool size is increased to handle high traffic load, then resource availability improves, but resource waste occurs under low traffic load
Solution Approach 1:
The patent implements dynamic resource pool selection by configuring multiple resource pools at different levels with varying resource quantities. The system dynamically selects which resource pool level to use based on current traffic load conditions, ensuring resource availability matches actual demand and preventing resource waste during low-traffic periods.
3Loss of time
If resource selection is performed quickly for emergency situations, then transmission initiation time is reduced, but resource collision risk increases
Solution Approach 1:
The patent performs preliminary configuration of multiple resource pools at different levels before emergency situations occur. When emergency transmission is needed, the system can immediately select from pre-configured resource pools without requiring complex real-time allocation decisions, thus reducing transmission initiation time while maintaining reliable resource selection through pre-planned resource diversity.
Data Source
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AI summary
The present invention relates to a wireless communication system, and a method for determining a resource for device-to-device communication by a user equipment is disclosed. A method for determining a resource for device-to-device communication according to an embodiment of the present invention may comprise the steps of: receiving, from an eNode B (eNB), configuration information related to a resource pool configured for each level; selecting the resource pool of the device-to-device communication on the basis of the configuration information; and selecting a resource for the device-to-device communication in the resource pool. Herein, the resource pool may be configured to have two or more levels.