Nonconsecutive Time-Frequency Resource Allocation in V2V Systems
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Solution Overview
Problem
Current V2V communication systems face resource fragmentation issues due to the lack of nonconsecutive time-frequency resource allocation, leading to increased data transmission delays and inefficient utilization of available resources when consecutive resources are insufficient.
Innovation Solution
The method supports nonconsecutive time-frequency resource allocation by allowing vehicles to autonomously select and use available time-frequency resources from a communication resource pool, enabling timely data packet transmission even when consecutive resources are insufficient.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If consecutive time-frequency resources are allocated for V2V communication, then resource allocation simplicity is maintained, but resource utilization efficiency deteriorates when resources are fragmented
Solution Approach 1:
The patent segments the time-frequency resource allocation into multiple nonconsecutive resource units. Instead of requiring a single continuous block of resources, the system divides the resource allocation into multiple separate time-frequency resources that can be independently selected and combined, allowing efficient utilization of fragmented resources while maintaining allocation simplicity through standardized segmentation patterns.
2Device complexity
If only consecutive time-frequency resources are supported, then resource allocation management is simplified, but data transmission delay increases when consecutive resources are insufficient
Solution Approach 1:
The patent introduces dynamic resource selection capability that allows the system to adaptively switch between consecutive and nonconsecutive resource allocation modes based on availability. When consecutive resources are insufficient, the system dynamically selects multiple nonconsecutive resources, reducing transmission delay while managing complexity through predefined selection criteria and hierarchical resource pools.
Solution Approach 2:
The patent changes the resource allocation parameter from requiring strict consecutiveness to allowing nonconsecutive arrangements. By modifying the resource allocation parameters to include multiple separate time-frequency resource indicators and adjusting the scheduling algorithms to handle nonconsecutive resource patterns, the system reduces transmission delays while maintaining manageable complexity through standardized parameter structures.
3Loss of energy
If nonconsecutive time-frequency resource allocation is implemented, then resource utilization efficiency is improved, but system complexity increases
Solution Approach 1:
The patent designs a universal resource allocation framework that can handle both consecutive and nonconsecutive resource patterns through a unified interface and standardized procedures. The system maintains multi-functionality by supporting traditional consecutive allocation for simple cases while enabling nonconsecutive allocation for fragmented resource scenarios, reducing the need for separate management mechanisms and limiting complexity increase.
Solution Approach 2:
The patent implements self-service mechanisms where the system autonomously selects and manages nonconsecutive time-frequency resources based on predefined criteria and available resource information. The autonomous resource selection and management capabilities reduce the need for complex centralized control and manual configuration, allowing the system to efficiently utilize fragmented resources while keeping operational complexity manageable through automated decision-making algorithms.
Data Source
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AI summary
Embodiments of this application disclose a data transmission method, a related device, and a system. The method includes: determining, by a first communications device, N time-frequency resources, where any two of the N time-frequency resources are nonconsecutive in at least one of a time domain and a frequency domain; each of the N time-frequency resources is smaller than a time-frequency resource required for transmitting to-be-transmitted data, and a sum of the N time-frequency resources is greater than or equal to the time-frequency resource required for transmitting the to-be-transmitted data; and N is a positive integer greater than or equal to 2; sending, by the first communications device, first indication information on M of the N time-frequency resources, where the first indication information is used to indicate that the N time-frequency resources are used by the first communications device to send the to-be-transmitted data, and M is a positive integer less than or equal to N; and sending, by the first communications device, the to-be-transmitted data on the N time-frequency resources. According to this application, time-frequency resource utilization can be improved.