D2D Communication Priority Handling via Alarm Region Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current Device to Device (D2D) communication methods do not effectively handle communication priorities, particularly in situations like public safety or emergency scenarios, where higher priority communications are needed, and fail to manage priorities based on service types in commercial use.
Innovation Solution
A method and system that utilize an alarm region within communication frames to indicate priority, allowing User Equipment (UE) to recognize and manage communication priorities by selecting appropriate Resource Blocks (RBs) for transmitting signals, ensuring that higher priority communications are supported and efficiently handled.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If D2D communication allows terminals to distributively use limited radio resources without network assistance, then resource utilization efficiency is improved, but the ability to handle communication priorities is worsened
Solution Approach 1:
The alarm region is segmented into multiple sub-regions, where each sub-region corresponds to a specific priority level. High priority communications are allocated specific sub-regions within the alarm region, allowing them to be identified and handled separately from low priority communications. This segmentation enables the system to maintain distributed resource usage while introducing priority-based differentiation through structured region division.
Solution Approach 2:
Different sub-regions within the alarm region are assigned different priority qualities. By marking specific sub-regions with priority indicators, the system creates local quality differences that enable terminals to distinguish between high and low priority communications. This allows priority handling to be implemented locally within specific regions rather than requiring centralized control over all resources.
2Adaptability or versatility
If alarm region is divided and allocated for each priority level, then priority management capability is improved, but device complexity is worsened
Solution Approach 1:
The alarm region is pre-divided into multiple sub-regions corresponding to different priority levels before actual communication occurs. This preliminary structuring of the alarm region allows terminals to quickly identify priority levels without performing complex real-time analysis. The pre-established mapping between sub-regions and priority levels simplifies the decision-making process during communication.
Solution Approach 2:
The priority information is copied and represented through markings in the alarm region sub-regions. Instead of requiring complex priority negotiation protocols, the system uses simple marking indicators that copy the priority status into the alarm region structure. This copying mechanism allows terminals to efficiently recognize and respond to priority levels without complex processing.
Data Source
AI summary
A communication method of a device to device (D2D) user equipment (UE) in a cellular system supporting a communication frame structure including one or more subframes used for a communication of the D2D UE is provided. The method includes reading an alarm region located within a first subframe, wherein the alarm region indicates whether a communication signal having a priority is included in the first subframe or a second subframe related to the first subframe, and transmitting the communication signal through one of the second subframe and a third subframe related to the second subframe, based on information read from the alarm region.