5G V2X Service Parameter Provisioning via NEF and PCF
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Solution Overview
Problem
Existing V2X communication systems, such as those based on WAVE standards, face limitations in message coverage between vehicles, necessitating the development of cellular-based V2X technologies to enhance service provisioning.
Innovation Solution
The method involves provisioning V2X service-related parameters to user equipment (UE) in a V2X system, utilizing network exposure functions, unified data repositories, and policy control functions to enable seamless communication between vehicles and the 5G network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If WAVE standards (IEEE 802.11p) are used for V2X communication, then dedicated short range communication is enabled, but message coverage between vehicles is limited
Solution Approach 1:
The patent segments the V2X communication system into multiple network slices, each dedicated to specific services (e.g., safety-critical communication, infotainment, telemetry). This segmentation allows different services to have optimized coverage and reliability parameters simultaneously, resolving the contradiction by providing service-specific coverage areas through slice isolation.
Solution Approach 2:
The patent changes key communication parameters dynamically based on service requirements, including modulation schemes, coding rates, and resource allocation strategies. By adjusting these parameters per network slice, the system achieves both extended coverage for non-critical services and high reliability for safety-critical services, resolving the coverage-reliability tradeoff.
2Length of stationary object
If cellular-based V2X technology is adopted to extend coverage, then message transmission distance is improved, but system complexity increases
Solution Approach 1:
The patent implements a universal 5G core network that handles multiple V2X services through network slicing, rather than requiring separate dedicated systems for each service type. This multi-functional approach extends transmission distance using cellular infrastructure while managing complexity through a unified control plane that serves all V2X applications.
Solution Approach 2:
The patent introduces a V2X management function as an intermediary between the cellular network and V2X applications. This mediator handles service-specific parameter provisioning, resource allocation, and slice management, thereby extending transmission distance through cellular technology while offloading complexity to a dedicated management layer rather than increasing overall system complexity.
3Adaptability or versatility
If service-specific parameters are provisioned to multiple UEs, then service customization is improved, but parameter provisioning complexity increases
Solution Approach 1:
The patent implements dynamic parameter provisioning where service parameters are automatically adjusted and updated based on real-time network conditions, service requirements, and UE capabilities. The V2X management function dynamically provisions parameters to appropriate network slices and UEs, enabling service customization while reducing provisioning complexity through automated, condition-based parameter assignment rather than static manual configuration.
Data Source
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AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation communication system for supporting higher data rates beyond a 4th-Generation system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. In accordance with an aspect of the disclosure, a method performed by a device for performing a network exposure function (NEF) in a communication system, the method comprising: receiving, from a server, a request message including request information related to service-specific information; changing data in a unified data repository (UDR) on the basis of the request message; and performing provisioning of the changed data to a user equipment via a policy control function (PCF) is provided.