Multi-bit Sidelink Feedback Channel for IoV Reliability
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Solution Overview
Problem
In the internet-of-vehicle system, existing technologies face challenges in efficiently performing sidelink feedback to improve the reliability of sidelink transmission, especially when multiple bits of feedback information need to be carried.
Innovation Solution
A wireless communication method and terminal device that enable multi-bit sidelink feedback by transmitting a sidelink feedback channel carrying information of more than one bit, allowing for improved feedback efficiency and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple feedback channels are used to carry feedback information for each PSSCH and TB, then the feedback information can be transmitted completely, but the feedback overhead increases
Solution Approach 1:
The patent merges multiple feedback channels into a single sidelink feedback channel by combining feedback information from multiple PSSCH and TB into one unified feedback message. This consolidation reduces the number of separate feedback transmissions while ensuring all necessary feedback information is conveyed, directly resolving the contradiction between complete information transmission and reduced overhead.
2Quantity of substance
If one sidelink feedback channel carries feedback information for multiple PSSCH and TB, then the feedback overhead is reduced, but the complexity of feedback information management increases
Solution Approach 1:
The patent segments feedback information into distinct components corresponding to different PSSCH and TB, organizing them in a structured format within the single feedback channel. This segmentation approach allows the receiving terminal to efficiently parse and manage feedback information for multiple transmissions without increasing overall overhead, balancing simplicity with comprehensive feedback coverage.
Data Source
AI summary
A wireless communication method and a terminal device are provided. The method includes: receiving, by a first terminal, a sidelink data channel and/or a sidelink reference signal transmitted by a second terminal; transmitting, by the first terminal, a first sidelink feedback channel to the second terminal, the first sidelink feedback channel carrying sidelink feedback information of the sidelink data channel and/or a measurement result of the sidelink reference signal, and the first sidelink feedback channel carrying information of more than one bit.