Sidelink Slot Grouping for High-Band Transmission Efficiency
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Solution Overview
Problem
There is currently no suitable solution for sidelink transmission or reception in high frequency bands above 52.6 GHz due to the decrease in symbol duration with increasing frequency, which affects the efficiency of sidelink communications.
Innovation Solution
A sidelink transmission method is provided that performs sidelink transmission or reception in a first time unit consisting of consecutive M slots, where M is a positive integer greater than 1, and includes a terminal device with a communications module configured to handle such transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If frequency band is extended to high frequency band (higher than 52.6 GHz) to improve transmission rate, then transmission rate is improved, but symbol duration decreases
Solution Approach 1:
The patent segments the time domain by introducing a first time unit that includes multiple slots (M slots where M > 1). This segmentation allows the system to maintain shorter symbol durations at high frequencies while organizing transmission into manageable time units that can accommodate multiple slots, thereby resolving the contradiction between improved transmission rate and reduced symbol duration.
2Productivity
If subcarrier spacing increases with frequency to improve transmission rate, then transmission rate is improved, but symbol duration decreases
Solution Approach 1:
The patent introduces flexibility in time unit configuration by allowing M (the number of slots in a first time unit) to be dynamically determined based on subcarrier spacing. This dynamic adaptation enables the system to adjust the structure of time units according to the specific subcarrier spacing used at different frequencies, maintaining optimal performance across varying frequency bands while accommodating the inverse relationship between subcarrier spacing and symbol duration.
Data Source
AI summary
Provided are a sidelink transmission method and a terminal device. The sidelink transmission method comprises: a first terminal device conducting sidelink sending or sidelink receiving in a first time unit, wherein the first time unit comprises M consecutive time slots, and the M is a positive integer greater than 1.