Sidelink Data Duplication Configuration for V2X Reliability
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Solution Overview
Problem
Current communication systems lack a defined quality of service (QoS) for sidelink data duplication in V2X communications, which is crucial for services requiring high reliability and low latency, particularly in scenarios like vehicle-to-everything (V2X) applications.
Innovation Solution
A method where a terminal device determines whether to duplicate sidelink data packets based on the sidelink radio bearer, allowing for dynamic configuration of data duplication based on parameters such as packet priority, interference levels, and radio conditions, enabling differentiated QoS for sidelink traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data duplication is configured for sidelink communication, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent applies local quality by configuring data duplication selectively for specific sidelink radio bearers based on their QoS requirements. Not all sidelink bearers are configured for duplication - only those with specific characteristics (e.g., high reliability requirements, specific priority levels, or particular logical channel configurations) are enabled for duplication. This targeted approach improves reliability where needed while avoiding unnecessary complexity for bearers that don't require duplication.
Solution Approach 2:
The patent implements dynamic configuration of data duplication through network signaling. The network can dynamically enable or disable duplication for specific sidelink bearers based on current QoS requirements, channel conditions, and traffic characteristics. This dynamic approach allows the system to adapt to changing conditions and only incur the complexity overhead when actually beneficial for reliability.
2Reliability
If data duplication is performed for all sidelink traffic, then reliability is improved, but resource consumption increases
Solution Approach 1:
The patent applies local quality by enabling data duplication only for specific sidelink radio bearers that meet certain criteria, rather than for all sidelink traffic. The configuration is bearer-specific, allowing the system to apply duplication resources only where they provide the most value for reliability improvement, thus optimizing resource consumption.
Solution Approach 2:
The patent uses parameter-based configuration to control data duplication behavior. By changing parameters such as QoS requirements, priority levels, logical channel configurations, or channel conditions, the system can dynamically adjust which bearers receive duplication resources. This parameter-driven approach ensures that duplication resources are allocated efficiently based on actual needs rather than uniformly across all traffic.
3Adaptability or versatility
If data duplication is configured without QoS definition, then adaptability is maintained, but manufacturing precision deteriorates
Solution Approach 1:
The patent segments the sidelink communication into multiple radio bearers, each with specific QoS characteristics and duplication configurations. By dividing the communication into separate bearers with distinct parameters (priority, reliability requirements, logical channel settings), the system achieves precise control over which traffic receives duplication, improving configuration precision while maintaining adaptability through flexible bearer management.
Solution Approach 2:
The patent introduces QoS parameters and configuration parameters to precisely control data duplication behavior. By defining and manipulating parameters such as bearer priority, reliability requirements, logical channel identifiers, and duplication enablement flags, the system achieves precise configuration control. This parameter-based approach allows the network to precisely determine when and how to apply duplication while maintaining adaptability to different traffic requirements.
Data Source
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AI summary
A method and device for sidelink data duplication. The method includes: determining whether a sidelink data packet is to be duplicated based on a sidelink radio bearer on which the sidelink data packet is to be transmitted; performing sidelink data duplication of the sidelink data packet when it is determined that the sidelink data packet is to be duplicated based on the sidelink radio bearer. Therefore, a solution is proposed to properly configure data duplication for sidelink.