Sidelink Beacon Signaling for Dynamic Resource Pool Sharing
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Solution Overview
Problem
Existing resource allocation methods in sidelink (SL) communication systems face challenges in efficiently utilizing channel resources and ensuring quality of service (QoS) for user groups, particularly in scenarios with high local communication requirements, such as vehicle-to-everything (V2X), smart homes, and smart factories.
Innovation Solution
A resource processing method involving beacon messages to indicate resource usage and release, using Zadoff-Chu sequences for user group identification, and orthogonal beacon indication resources to improve resource utilization and reduce waste, allowing temporary access to released resources by other user groups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If periodic resources are allocated to a user group for SL communication, then the user group can ensure QoS and maintain stable communication, but the channel resources cannot be utilized when the user group does not need to send data, causing resource waste
Solution Approach 1:
The patent implements dynamic resource allocation by introducing a beacon message mechanism that allows user groups to dynamically indicate whether they are using their allocated periodic resources. When a user group does not need to transmit data, it sends a beacon message to release the resources, allowing other user groups to utilize them. This transforms the static resource allocation into a dynamic system that adapts to actual communication needs, resolving the contradiction between ensuring QoS through periodic allocation and avoiding resource waste when data transmission is not required.
2Productivity
If beacon messages are sent on beacon indication resources to indicate resource usage, then resource utilization can be improved through dynamic release, but the system complexity increases due to additional signaling overhead
Solution Approach 1:
The patent extracts the resource release indication function from the data transmission process itself and implements it through a separate beacon message mechanism. This allows the resource release signaling to be handled independently from the actual data communication, reducing the overhead on the data channel while still achieving dynamic resource utilization. The beacon messages carry only essential release indication information rather than full communication payloads, minimizing signaling overhead while improving resource utilization efficiency.
3Productivity
If other user groups can temporarily access released resources, then channel resource utilization is enhanced, but the risk of resource conflicts and interference between user groups increases
Solution Approach 1:
The patent implements a feedback mechanism where user groups monitor for beacon messages indicating resource release before accessing temporarily released resources. This feedback loop ensures that user groups only access resources that have been properly released and are currently available, preventing conflicts and interference. The beacon message system provides real-time information about resource availability, allowing user groups to make informed decisions about resource access and avoid simultaneous access to the same resources by multiple groups.
Data Source
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AI summary
Embodiments of this application provide a resource processing method, an apparatus, and a medium, to reduce a data delay, improve channel resource utilization, and reduce a waste of channel resources. The method includes: A first device sends a beacon message on a beacon indication resource corresponding to a first resource, where the beacon message is used to indicate 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, so that a device in the another user group determines that the first resource is not used by the device in the first user group and all or a part of the first resource can be temporarily used by the device in the another user group, where the first device belongs to the first user group, the first resource belongs to a first resource pool, the first resource pool includes a plurality of periodic resources that are allocated to the first user group for sidelink SL communication, and each resource corresponds to one beacon indication resource.