Sidelink Feedback Mechanism for Unicast Transmission Reliability
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Solution Overview
Problem
The existing LTE system's sidelink transmission relies on broadcasting without feedback from receiving terminals, leading to lower transmission reliability and inefficient resource utilization due to the lack of feedback mechanisms.
Innovation Solution
A sidelink operation method that acquires and utilizes sidelink configuration information, including feedback and measurement configurations, to perform measurement and feedback operations, enhancing transmission performance by enabling feedback and measurement mechanisms between terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If broadcasting is used for sidelink transmission without feedback, then transmission coverage is improved, but transmission reliability deteriorates
Solution Approach 1:
The patent introduces a feedback mechanism where the receiving terminal sends feedback information to the transmitting terminal about whether data was successfully received. This allows the transmitting terminal to determine if retransmission is needed, thereby improving transmission reliability while maintaining broadcasting coverage.
2Reliability
If multiple pieces of the same data are broadcast to ensure reliability, then transmission reliability is improved, but system resource utilization deteriorates
Solution Approach 1:
Instead of blindly broadcasting multiple copies of data, the system uses feedback from the receiving terminal to determine whether retransmission is actually needed. This feedback-driven approach ensures reliability only when necessary, optimizing system resource utilization.
3Reliability
If feedback mechanism is introduced in sidelink, then transmission reliability is improved, but device complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where receiving terminals send acknowledgment information to transmitting terminals. This feedback enables reliable communication through selective retransmission while keeping the implementation relatively simple by using standardized feedback formats and procedures.
Data Source
AI summary
The embodiments of the present disclosure provide a sidelink operation method and a terminal. The method includes: acquiring sidelink configuration information, wherein the sidelink configuration information includes at least one of feedback configuration information and measurement configuration information; performing at least one of a measurement operation and a feedback operation on sidelink according to the sidelink configuration information.