Terminal Radio Resource Selection for Lower User-Plane Delay
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Solution Overview
Problem
Existing radio resource scheduling methods in communication systems face issues such as user-plane delay, radio resource wastage, and resource conflicts, particularly in scenarios with varying network coverage and resource availability.
Innovation Solution
A communication method where a terminal device autonomously determines whether to perform radio resource selection, allowing it to transmit data based on a selected radio resource from a resource pool, while also enabling network devices to schedule resources based on buffer status information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If radio resources are scheduled by network device, then resource allocation control is improved, but user-plane delay increases
Solution Approach 1:
The resource allocation process is segmented into two modes: autonomous selection mode where terminal devices independently select resources from a configured pool, and scheduled mode where network devices allocate resources. This segmentation allows terminals to operate autonomously in appropriate scenarios, reducing delay while maintaining network control when needed.
Solution Approach 2:
The system dynamically switches between autonomous resource selection and network-scheduled resource allocation based on terminal capability, network conditions, and service requirements. The network device configures resource pools and monitors terminal behavior, adjusting the balance between autonomy and control to optimize both delay and resource management.
2Loss of time
If autonomous radio resource selection is implemented, then user-plane delay is reduced, but resource conflicts increase
Solution Approach 1:
The network device monitors terminal device resource selection behavior and provides feedback through resource pool configuration updates, terminal capability assessment, and scheduling adjustments. This feedback mechanism helps prevent resource conflicts by guiding autonomous selections toward less congested resource pools or transitioning terminals to scheduled mode when conflicts are detected.
Solution Approach 2:
The network device acts as an intermediary by pre-configuring resource pools with sufficient resource availability and monitoring terminal selections. When resource conflicts are detected or predicted, the network device intervenes by adjusting resource pool configurations or switching terminals to scheduled allocation mode, thus mediating between autonomous selection freedom and conflict prevention.
3Reliability
If traditional resource scheduling is used, then resource allocation control is maintained, but radio resource wastage occurs
Solution Approach 1:
Terminal devices with appropriate capabilities autonomously select resources from configured pools without requiring network device scheduling for each transmission. This self-service approach eliminates unnecessary scheduling signaling overhead and allows terminals to immediately utilize available resources, reducing radio resource wastage while maintaining network-configured control boundaries.
Solution Approach 2:
The system changes the operational parameter from centralized scheduled allocation to autonomous selection based on terminal capability, service type, and network conditions. By adjusting the degree of autonomy as a configurable parameter, the system optimizes resource utilization efficiency while maintaining appropriate levels of network control for different scenarios.
Data Source
AI summary
A communication method, a terminal device, and a communication device are provided. The method includes the following. A terminal device determines whether to autonomously perform radio resource selection; and in a case where the terminal device autonomously performs radio resource selection, the terminal device transmits data and/or buffer data information based on a first radio resource autonomously selected by the terminal device.