Dedicated Resource Allocation for IoV Group Joining
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Solution Overview
Problem
In Internet of Vehicles (IoV) communication, devices outside a group face challenges in joining due to resource conflicts when no network side device participates in resource scheduling, leading to delayed or failed group joining.
Innovation Solution
A method to allocate dedicated time-frequency resources for communication between a group management device and a joining vehicle-mounted device, ensuring distinct resources are used for different communication processes to avoid conflicts and facilitate smooth group joining.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If devices autonomously select resources from a resource pool for direct communication, then resource selection flexibility is improved, but resource conflicts occur between joining devices and existing group communications
Solution Approach 1:
The resource pool is segmented into dedicated resources for joining messages and resources for group communications. The group management device allocates specific time-frequency resources exclusively for joining devices to use when communicating with the group management device, separating them from resources used by existing group members. This segmentation eliminates resource conflicts while maintaining autonomous selection flexibility.
Solution Approach 2:
The group management device performs preliminary allocation of dedicated resources for joining messages before the joining communication occurs. By pre-allocating specific time-frequency resources for joining devices, the system ensures that these resources are reserved and available, preventing conflicts with ongoing group communications and ensuring reliable joining processes.
2Reliability
If dedicated time-frequency resources are allocated for joining messages, then group joining success rate is improved, but resource management complexity increases
Solution Approach 1:
The group management device automatically manages the allocation and configuration of dedicated resources for joining messages without requiring external intervention or complex coordination. The device autonomously identifies available resources, allocates them to joining devices, and monitors their usage, simplifying the overall resource management process while ensuring high joining success rates.
3Extent of automation
If autonomous resource selection is used without network side device participation, then system autonomy is improved, but resource conflicts cause joining delays
Solution Approach 1:
The group management device performs preliminary allocation of dedicated resources for joining messages before the joining process begins. By pre-allocating specific time-frequency resources and notifying joining devices of their availability, the system maintains autonomous operation while eliminating the time loss associated with resource conflicts and retransmissions during the joining process.
Data Source
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AI summary
Embodiments of this application disclose a resource allocation method and a communications device, to allocate a dedicated reserved resource to a communications device that has not joined a group, so that the communications device can smoothly join the group. The method in embodiments of this application includes: configuring, by a first device, first configuration information for a second device, where the first configuration information is used to indicate a first time-frequency resource allocated by the first device, the first time-frequency resource is different from a second time-frequency resource that is allocated by the first device to a third device in a same group, the first time-frequency resource comprises a third time-frequency resource and a fourth time-frequency resource, the third time-frequency resource is a time-frequency resource used when the first device receives a message sent by the second device, the fourth time-frequency resource is a time-frequency resource used when the first device sends a message to the second device, and the third time-frequency resource is different from the fourth time-frequency resource; and sending, by the first device, control information, where the control information includes the first configuration information.