V2X Communication Service Access in 5G Systems
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Solution Overview
Problem
Current V2X communication systems, such as those using LTE-based EPS and NR-based 5GS, face limitations in message exchange distance and compatibility between different radio access technologies, particularly in vehicular environments, where seamless communication between vehicles supporting EPS V2X and 5GS V2X functions is needed.
Innovation Solution
The solution enables vehicles to access and use V2X services by acquiring radio resource information from base stations, allowing them to transmit messages using either LTE or NR radio technology, even when staying within an NR or LTE base station, thereby improving message transmission and reception success rates by preventing radio resource collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vehicles use LTE-based EPS or NR-based 5GS for V2X communication, then communication services can be provided, but message exchange distance is limited and compatibility between different radio access technologies deteriorates
Solution Approach 1:
The patent enables vehicles to access V2X services through both LTE and NR base stations using a unified access method. The vehicle terminal can acquire radio resource information from either LTE or NR base stations and transmit messages using the appropriate radio technology, making the V2X communication system universally compatible across different radio access technologies without requiring separate access procedures for each technology.
Solution Approach 2:
The patent introduces a unified access mechanism that acts as an intermediary between vehicles and different base station types (LTE and NR). This mechanism allows vehicles to seamlessly access V2X services through either technology by acquiring radio resource information from the serving base station and using the appropriate transmission method, thereby mediating the compatibility issue between different radio access technologies.
2Productivity
If vehicles transmit V2X messages using their own radio technology, then communication can be maintained, but radio resource collisions occur reducing transmission success rate
Solution Approach 1:
The patent implements a feedback mechanism where vehicles acquire radio resource information from base stations before transmitting V2X messages. This feedback from the base station provides the vehicle with appropriate resource allocation information, enabling the vehicle to select transmission resources that avoid collisions with other vehicles, thereby improving transmission success rate and reducing harmful interference.
Data Source
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AI summary
The present disclosure relates to: a communication method for fusing IoT technology with 5G communication systems for supporting higher data transmission rates than preceding 4G systems; and to a system for same. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safety-related services, etc.) based on 5G communication technology and IoT-related technology. The present invention discloses a method for providing a vehicle communication service (vehicle-to-everything, V2X) in a 5G mobile communication system.