Sidelink Resource Allocation Mode Configuration in Wireless Systems
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing sidelink resource allocation modes for User Equipment (UE) in next-generation networks, particularly in configuring appropriate transmission resources for sidelink communications, which affects data transmission efficiency and reliability.
Innovation Solution
The proposed solution involves a method where the User Equipment (UE) receives signaling from a base station containing mapping between resource allocation modes and attributes of sidelink data, allowing it to perform sidelink transmissions based on configured resource allocation modes, including network scheduling and UE autonomous selection modes, to optimize data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network scheduling mode is used for sidelink resource allocation, then resource allocation reliability is improved, but device complexity and signaling overhead increase
Solution Approach 1:
The patent segments resource allocation into two distinct modes: network-scheduled mode (Mode 1) for high reliability scenarios, and autonomous selection mode (Mode 2) for low complexity scenarios. This segmentation allows the system to choose the appropriate mode based on service requirements, thereby resolving the contradiction between reliability and complexity by providing specialized solutions for different operational contexts.
Solution Approach 2:
The patent implements dynamic mode switching capability where the UE can transition between network-scheduled mode and autonomous selection mode based on changing network conditions, service requirements, and resource availability. This dynamic adaptation allows the system to optimize the balance between reliability and complexity in real-time, selecting the more complex network-scheduled mode when reliability is critical and the simpler autonomous mode when complexity needs to be reduced.
2Device complexity
If UE autonomous selection mode is used for sidelink resource allocation, then device complexity is reduced, but resource allocation efficiency and reliability deteriorate
Solution Approach 1:
The patent changes key parameters such as resource pool configuration, sensing window duration, and transmission power levels based on the selected allocation mode and service requirements. In autonomous selection mode, the system optimizes parameters like the sensing window size and resource selection probability to maintain acceptable efficiency while reducing complexity compared to network-scheduled mode.
Solution Approach 2:
In autonomous selection mode, the UE performs self-service by independently selecting resources based on pre-configured parameters and local sensing, eliminating the need for continuous network scheduling. This self-service approach reduces device complexity and signaling overhead while maintaining reasonable resource allocation efficiency through localized decision-making and pre-optimized configuration parameters.
3Adaptability or versatility
If multiple resource allocation modes are supported, then adaptability to different service requirements is improved, but system complexity increases
Solution Approach 1:
The patent implements a universal resource allocation framework that supports both network-scheduled mode and autonomous selection mode within a single system architecture. The UE is designed with multi-functionality to handle both modes, using a unified configuration mechanism and common resource pools, thereby achieving high adaptability to different service requirements while minimizing the increase in system complexity through shared infrastructure and standardized procedures.
Data Source
AI summary
A method and apparatus are disclosed from the perspective of a UE (User Equipment). In one embodiment, the method includes the UE receiving a first signaling containing mapping between resource allocation mode(s) and attribute(s) of sidelink data of the UE from a base station. The method further includes the UE performing a sidelink transmission of the sidelink data based on the mapping between the resource allocation mode(s) and the attribute(s) of the sidelink data.