V2X Resource Pool Segmentation to Prevent Cross-Domain Interference
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Solution Overview
Problem
In-vehicle wireless communication systems face resource conflicts and interference between different communications domains, leading to reduced information receiving quality due to independent resource selection and multiplexing methods that can block receiving processes.
Innovation Solution
A communications apparatus allocates and configures distinct resource pools for different communications domains, employing time-division multiplexing to avoid conflicts and improve reception quality, with optional frequency-division multiplexing for specific scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If resources are independently selected in each communications domain, then resource allocation flexibility is improved, but resource conflicts occur between domains leading to transmission failures
Solution Approach 1:
The patent segments the resource pool into domain-specific resource pools, where each communications domain is allocated a dedicated resource pool. This segmentation prevents resource conflicts between domains while maintaining allocation flexibility within each domain, as the master node can independently manage resources in its assigned pool without interfering with other domains.
Solution Approach 2:
The patent implements local quality by allowing each communications domain to have customized resource allocation characteristics suited to its specific requirements. The master node configures resource pools with parameters optimized for its domain's communication needs, enabling tailored resource management that improves both flexibility and reliability for each domain while preventing cross-domain interference.
2Productivity
If resources are multiplexed in frequency domain across communications domains, then resource utilization efficiency is improved, but receiving processes are blocked leading to reduced information receiving quality
Solution Approach 1:
The patent segments frequency resources into separate resource pools for different communications domains, eliminating frequency domain multiplexing between domains. This segmentation prevents receiving process blocking while maintaining high resource utilization within each domain through efficient local resource management and configuration by the master node.
3Device complexity
If a single resource pool is used for all communications domains, then device complexity is reduced, but resource conflicts and interference increase
Solution Approach 1:
The patent segments the overall resource pool into multiple domain-specific resource pools, which increases structural complexity but eliminates resource interference between domains. The master node manages these segmented pools through automated configuration and allocation, which maintains operational simplicity despite the segmented structure, thus resolving the contradiction between complexity and interference.
Solution Approach 2:
The master node acts as an intermediary that manages the segmented resource pools, configuring and allocating resources automatically based on domain requirements. This intermediary management layer simplifies the operation of the segmented structure by handling the complexity of resource pool configuration, thereby maintaining ease of operation while preventing resource interference through proper segmentation.
Data Source
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AI summary
This application provides a communications method and apparatus, which may be applied to the field of autonomous driving, intelligent driving, or short-range communication, and may be further applied to the internet of vehicles, such as vehicle-to-everything V2X, long term evolution-vehicle LTE-V, and vehicle-to-vehicle V2V A first communications apparatus determines a second resource pool, where the second resource pool is different from a first resource pool, and the first resource pool is managed by the first communications apparatus and used by the first communications apparatus to communicate with another communications apparatus. The first communications apparatus sends first configuration information, where the first configuration information is used to indicate the second resource pool. In embodiments of this application, the first communications apparatus may indicate the second resource pool, and the another communications apparatus can determine, based on the second resource pool, a resource pool to be used by the communications apparatus, to avoid a conflict between resources used by different communications apparatuses, and reduce mutual impact of communication processes of the different communications apparatuses.