V2X Sidelink Radio Bearer Mapping for Reliable Low-Latency Communication
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Solution Overview
Problem
Existing wireless communication systems struggle to provide high reliability and low-latency direct communication between terminals in vehicle-to-everything (V2X) services, particularly for advanced services with varying QoS requirements, as they lack effective methods for managing and configuring quality of service (QoS) in direct communication schemes.
Innovation Solution
The solution involves apparatuses and methods for determining QoS information corresponding to sidelink radio bearers and acquiring configuration parameters to support direct communication between V2X terminals, including unicast, groupcast, and broadcast modes, using standardized 5QI values and additional QoS parameters to ensure compliance with specific V2X service requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If direct communication scheme is implemented for V2X services, then communication latency is reduced and reliability is improved, but QoS management complexity increases
Solution Approach 1:
The patent introduces a QoS parameter mapping mechanism that acts as an intermediary between the core network QoS parameters and sidelink radio bearer parameters. This mapping function translates complex QoS requirements into manageable configuration parameters for direct communication, reducing the complexity burden on the terminal devices while maintaining high reliability.
Solution Approach 2:
The patent employs parameter mapping and transformation to convert core network QoS parameters into sidelink-specific configuration parameters. By changing the parameter representation and providing standardized mapping rules, the system simplifies QoS management complexity while ensuring reliable communication performance.
2Adaptability or versatility
If multiple QoS parameters are supported for diverse V2X services, then service adaptability is improved, but configuration complexity increases
Solution Approach 1:
The patent creates a universal QoS parameter mapping framework that can handle multiple V2X service types (basic safety, advanced services, unicast, groupcast, broadcast) through a single standardized mechanism. This multi-functional mapping approach enables diverse services to be configured using the same principles, improving adaptability without proportionally increasing complexity.
Solution Approach 2:
The patent segments QoS parameters into core network-side parameters and radio bearer configuration parameters, with clear mapping relationships. This segmentation allows complex multi-parameter QoS management to be broken down into manageable components, enabling diverse service support while reducing configuration complexity through structured organization.
3Reliability
If QoS parameters are mapped from core network to radio bearers, then QoS guarantee is improved, but signaling overhead increases
Solution Approach 1:
The patent performs QoS parameter mapping and configuration preparation in advance during network setup and registration procedures. By pre-establishing the mapping relationships and configuration templates before actual communication begins, the system reduces real-time signaling overhead while maintaining QoS guarantees through预先 configured parameters.
Data Source
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AI summary
The disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). A method for operating a user equipment in a wireless communication system includes determining service information required by a vehicle to everything (V2X) application and determining a V2X transmission mode. The method also includes determining quality of service (QoS) information required by the V2X application and acquiring sidelink radio bearer configuration information corresponding to the QoS information. The method further includes transmitting and receiving a V2X packet of direct communication using the acquired sidelink radio bearer configuration information.