Sidelink Resource Beaconing for Temporary Group Resource Reuse
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Solution Overview
Problem
Existing sidelink communication systems face challenges in efficiently allocating resources among user groups to ensure quality of service and reduce channel resource waste.
Innovation Solution
A resource processing method involving beacon messages to indicate resource usage and release, allowing user groups to temporarily utilize resources, using Zadoff-Chu sequences for identification and orthogonal beacon indication resources to enhance flexibility and utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If periodic resources are allocated to a user group for sidelink communication, then quality of service is ensured, but channel resource waste increases when resources remain unused
Solution Approach 1:
The patent implements dynamic resource allocation by introducing beacon messages that allow user groups to temporarily release and reuse periodic resources based on actual communication needs. Instead of static resource allocation, the system dynamically adjusts resource usage through beacon message transmission and detection, enabling resources to be reused when not needed while maintaining QoS guarantees when active.
Solution Approach 2:
The patent changes the state parameter of resource allocation from fixed to variable by using beacon messages as indicators. When a beacon message is detected, resources are marked as occupied; when not detected, resources can be temporarily released for reuse by other user groups. This parameter change enables flexible resource management that adapts to varying communication demands.
2Measurement precision
If beacon messages are sent to indicate resource usage, then resource allocation accuracy improves, but signaling overhead increases
Solution Approach 1:
The beacon message mechanism enables user groups to self-manage resource allocation without base station intervention. Each user group autonomously transmits beacon messages to indicate resource usage status, and other user groups independently detect and interpret these messages to determine resource availability. This self-service approach reduces signaling overhead by eliminating the need for base station-scheduled resource allocation messages.
3Productivity
If resources are temporarily released for reuse by other user groups, then channel resource utilization improves, but resource collision risk increases
Solution Approach 1:
The beacon message system implements feedback mechanisms where user groups continuously monitor for beacon messages before transmitting on temporarily released resources. This feedback loop ensures that resources are only reused when confirmed available, preventing collisions. The detection and response mechanism creates a coordinated access system that balances resource utilization with collision avoidance.
Data Source
AI summary
A method includes a first device that sends a beacon message on a beacon indication resource corresponding to a first resource, where the beacon message indicates that the first resource is used by a device in a first user group and another user group cannot use all or a part of the first resource; or the first device skips sending the beacon message on the beacon indication resource corresponding to the first resource such that a device in the other user group determines that the first resource is not used by the device in the first user group and all or part of the first resource can be temporarily used by the device in the other user group.