Sidelink Radio Resource Negotiation for Adaptive Terminal Scheduling
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Solution Overview
Problem
Existing communication networks lack mechanisms for terminal devices to initiate the trade or redistribution of their scheduled radio resources, leading to inefficiencies in resource allocation and utilization.
Innovation Solution
Terminal devices can negotiate and request radio resources directly over a sidelink, with notifications and decisions handled by the network node, enabling efficient scheduling and resource sharing among devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the scheduler in the radio access network node handles resource allocation centrally, then resource distribution follows established scheduling principles (Round Robin, priority-based), but terminal devices have limited ability to impact resource assignment and adaptability is reduced
Solution Approach 1:
Terminal devices autonomously negotiate resource requests with each other via sidelink communication without requiring centralized scheduler intervention for every resource adjustment. The first terminal device can directly request resources from the second terminal device, and the second terminal device can autonomously grant or reject the request based on its own resource status, enabling self-service resource allocation that increases adaptability while maintaining manageable complexity through standardized notification procedures to the network node.
2Productivity
If radio resources are statically allocated to terminal devices, then resource allocation is simple and predictable, but resource utilization efficiency decreases when terminal devices have varying needs
Solution Approach 1:
The patent implements dynamic resource allocation where terminal devices can negotiate and adjust resource assignments in real-time based on current needs. The first terminal device sends resource requests via sidelink when it needs additional resources, and the second terminal device dynamically grants resources from its allocated pool, allowing resource utilization to adapt to varying terminal device requirements while maintaining operational simplicity through automated negotiation protocols.
3Speed
If terminal devices communicate resource needs directly over sidelink, then scheduling speed increases and adaptability improves, but coordination with the network node becomes more complex
Solution Approach 1:
Terminal devices perform preliminary resource negotiation actions directly over sidelink before involving the network node. The first terminal device can request resources and the second terminal device can grant resources through direct sidelink communication, achieving fast scheduling response. The network node is subsequently notified of the resource grant through standardized procedures, maintaining coordination while preserving the speed benefits of direct terminal-device communication.
Data Source
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AI summary
There is provided mechanisms for requesting radio resources from a second terminal device. A method is performed by a first terminal device. The method comprises identifying an increasing need for use of radio resources. The method comprises transmitting, via a sidelink to the second terminal device, a request for using radio resources allocated to the second terminal device. The method comprises receiving, via the sidelink, a response from the second terminal device. The response pertains to whether the second terminal device has granted the first terminal device to use at least some of the requested radio resources or not. The method comprises providing, towards a network node serving the first terminal device, a notification of that the first terminal device has requested the radio resources from the second terminal device and/or of that the second terminal device has granted the first terminal device to use at least some of the requested radio resources.