Multi-User Sidelink Scheduling With Shared SCI Across Time Divisions
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Solution Overview
Problem
Existing wireless communication technologies face challenges in efficiently scheduling sidelink communications for multiple users over multiple time periods, leading to increased overhead and reduced communication throughput.
Innovation Solution
A transceiver and processor system that transmits and receives a first stage sidelink control information (SCI) to schedule multiple transport blocks (TBs) of shared channel communications across different time divisions, allowing for common control information to be shared among multiple TBs, thereby reducing overhead and improving communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional scheduling methods are used for sidelink communications, then each transport block requires separate scheduling control information, but this leads to increased overhead and reduced communication throughput
Solution Approach 1:
The patent combines multiple scheduling control information messages into a single unified SCI message that schedules multiple transport blocks across different time divisions. This merging approach reduces the total number of control information transmissions and decreases scheduling overhead while maintaining the ability to schedule multiple TBs to different receiving UEs
Solution Approach 2:
The unified SCI message structure is designed to serve multiple functions simultaneously: it schedules multiple transport blocks, identifies multiple receiving UEs, and allocates resources across multiple time divisions. This multi-functional approach eliminates the need for separate scheduling messages for each TB, thereby reducing overhead and improving spectral efficiency
2Productivity
If separate SCI messages are transmitted for each transport block, then scheduling control is precise, but this increases resource usage and reduces communication efficiency
Solution Approach 1:
Multiple SCI messages are merged into a single unified control information message that contains scheduling information for multiple transport blocks. This consolidation reduces radio resource consumption by minimizing the number of control information transmissions while maintaining precise scheduling control through the unified message structure
3Ease of operation
If multiple SCI messages are used to schedule multiple transport blocks, then each TB can be individually controlled, but this increases message complexity and processing overhead
Solution Approach 1:
The unified SCI message is segmented into distinct fields that separately handle different scheduling parameters for multiple transport blocks. Each field contains specific information for particular TBs or receiving UEs, allowing individual control of each TB while maintaining a single integrated message structure that reduces overall complexity
Data Source
AI summary
Some aspects described herein relate transmitting a first stage sidelink control information (SCI) that schedules multiple transport blocks (TBs) of shared channel communications in multiple time divisions, wherein each of the multiple TBs is for a different receiving UE of multiple receiving UEs, transmitting, to a first receiving UE of the multiple receiving UEs and based on the first stage SCI, at least a first TB of the multiple TBs of shared channel communications in a first time division of the multiple time divisions, and transmitting, to a second receiving UE of the multiple receiving UEs and based on the first stage SCI, at least a second TB of the multiple TBs of shared channel communications in a second time division of the multiple time divisions. Other aspects relate to receiving the first stage SCI and at least one TB.