Sidelink Resource Allocation Across Multiple Modes for Low-Latency QoS
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently allocating and managing time-frequency resources for sidelink communication, particularly in scenarios requiring high reliability and low latency, such as URLLC services.
Innovation Solution
The solution involves an electronic device that searches for time-frequency resources based on multiple allocation modes to form a candidate resource set, allowing a terminal device to select resources that best meet Quality of Service (QoS) requirements, and a base station that allocates resources based on a first allocation mode while receiving resource selection information from the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single allocation mode is used for time-frequency resource allocation, then the system structure is simple, but the ability to meet diverse QoS requirements and achieve high reliability/low latency is insufficient
Solution Approach 1:
The patent implements multiple allocation modes (first allocation mode with base station scheduling and second allocation mode with terminal autonomous selection) within a single resource allocation system. This multi-functional design enables the system to accommodate different QoS requirements and communication scenarios, thereby improving reliability without being constrained by a single rigid allocation mechanism.
Solution Approach 2:
The patent introduces dynamic resource allocation where terminals can flexibly choose between different allocation modes based on real-time QoS requirements. The system dynamically switches between centralized scheduling and autonomous selection mechanisms, allowing adaptive response to changing communication needs and enabling high reliability for critical services like URLLC.
2Adaptability or versatility
If multiple allocation modes are implemented to meet diverse QoS requirements, then the flexibility and reliability are improved, but the resource selection and management complexity increases
Solution Approach 1:
The patent segments the resource allocation process into distinct modes: first allocation mode for base station-controlled scheduling and second allocation mode for terminal-autonomous selection. Each mode handles specific QoS requirements independently, allowing terminals to segment their resource selection based on service type and simplify the overall decision-making process despite the presence of multiple allocation mechanisms.
3Loss of time
If autonomous resource selection by terminals is enabled, then the latency is reduced and flexibility is improved, but the need for resource selection information feedback to base station increases management overhead
Solution Approach 1:
The patent implements a feedback mechanism where terminals send resource selection information to the base station after autonomous resource selection. This feedback loop enables the base station to monitor and manage terminal activities, coordinate resources, and optimize future allocations. The feedback mechanism balances autonomous low-latency selection with centralized coordination, managing overhead through selective information exchange.
Data Source
AI summary
The present disclosure relates to an electronic device, a method, and a storage medium for a wireless communication system. Various embodiments regarding resource allocation and management for sidelink communication are described. In an embodiment, an electronic device for a first terminal device includes a processing circuit configured to: search for time-frequency resources based on at least two allocation modes to obtain a candidate resource set; select a time-frequency resource from the candidate resource set; and notify a second terminal device of the selected time-frequency resource to be used for sidelink communication with the second terminal device. The processing circuit is further configured to send resource selection information to a base station, where the resource selection information indicates whether a specified resource is selected.