Sidelink Resource Selection Using Spatial Beam Parameters
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sidelink communication systems face challenges in optimizing transmission resources, particularly in millimeter wave bands, which affect resource selection and can lead to reduced transmission speed and volume due to the use of analog beamforming and limited beam management in high-frequency systems.
Innovation Solution
The method involves determining sidelink transmission resources based on spatial domain transmission filters, such as beams, to adapt resource allocation to the beam characteristics, ensuring efficient use of millimeter wave bands and improving transmission speed and volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If millimeter wave band is used to improve transmission rate, then transmission speed increases, but resource selection becomes more difficult due to beamforming requirements
Solution Approach 1:
The patent changes the parameter basis for resource selection from traditional random or round-robin selection to selection based on spatial domain transmission filter parameters (beam parameters). This allows the terminal to select resources adapted to the current beam configuration, resolving the contradiction by making resource selection dependent on transmission characteristics rather than being arbitrary or sequential.
Solution Approach 2:
The patent performs preliminary determination of beam parameters (spatial domain transmission filter parameters) before resource selection. By pre-establishing the beam configuration and its associated parameters, the terminal can then efficiently select resources that match the beam characteristics, avoiding complex real-time optimization during resource selection.
2Measurement precision
If analog beamforming is used in millimeter wave systems, then transmission directionality improves, but transmission volume decreases due to limited beam management
Solution Approach 1:
The patent enables dynamic resource selection based on beam parameters, allowing the system to adaptively choose different time-frequency resources corresponding to different beam configurations. This dynamic approach allows the system to maintain directional precision while increasing transmission volume by utilizing multiple beam-adapted resources rather than being constrained to a single beam pattern.
Solution Approach 2:
The patent introduces a new dimension to resource selection by incorporating spatial domain parameters (beam parameters) into the resource selection criterion. Instead of selecting resources only in time and frequency dimensions, the system now selects resources that are matched to specific spatial beam configurations, effectively adding a spatial matching dimension that resolves the trade-off between directionality and volume.
Data Source
Figure 1~2
Figure 3~5
Figure 6~7
AI summary
The disclosure relates to a method for sidelink (SL) transmission resource determination and a terminal device. The method for SL transmission resource determination may include the following. A first terminal device determines an SL transmission resource for transmission of first SL data based on a related parameter of a spatial domain transmission filter. In embodiments of the disclosure, the SL transmission resource is determined based on the related parameter of the spatial domain transmission filter, so that a transmission resource adapted to the spatial domain transmission filter can be obtained, thereby improving the transmission speed and volume of SL data.