V2X Channel Quality Feedback Mechanism for PC5 Interface
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Solution Overview
Problem
The existing Vehicle to Everything (V2X) technology faces challenges in ensuring the transmission quality of communication links established through direct interconnection communication interfaces, such as the PC5 interface, which is crucial for reliable vehicle-to-everything communication.
Innovation Solution
A method and apparatus for transmitting information, where a first terminal receives target information from a second terminal, obtains measurement information including a time-frequency position and channel quality values, and transmits this information back to the second terminal, enabling channel quality feedback and improvement of transmission quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If direct interconnection communication interface is used for V2X services, then communication latency is reduced and real-time interaction is improved, but transmission quality and reliability of the communication link deteriorate due to lack of channel quality feedback mechanism
Solution Approach 1:
The patent implements a channel quality feedback mechanism where the first terminal measures the channel quality of the target channel and feeds back measurement information (including measurement position and measurement values indicating channel quality) to the second terminal. This feedback enables the transmitting terminal to adjust transmission parameters based on actual channel conditions, thereby improving transmission reliability while maintaining the low-latency advantage of direct interconnection communication.
2Reliability
If measurement information feedback is implemented, then transmission quality is improved, but device complexity and signaling overhead increase
Solution Approach 1:
The patent extracts only the essential measurement information (measurement position and measurement values) needed for channel quality assessment and transmits only this condensed feedback data. By extracting and transmitting only the critical parameters rather than complete measurement datasets, the patent reduces signaling overhead and simplifies the feedback mechanism while still achieving improved transmission quality.
Data Source
AI summary
The present disclosure relates to an information transmitting method and apparatus, and a terminal and a storage medium. The method includes: a first terminal receives target information sent by a second terminal on a target channel through a direct-connect communication interface for transmitting a V2X service; the first terminal obtains measurement information corresponding to the target information, wherein the measurement information comprises the measurement position and a measurement value; the measurement position is used to indicate the time-frequency position occupied by the target information, and the measurement value is used to indicate the channel quality of the target channel; and the first terminal sends the measurement information to the second terminal.