Non-Overlapping Resource Allocation for Shared-RU Distributed Units
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In radio communication systems where multiple schedulers share a single radio unit, there is a lack of coordination in resource allocation, leading to inefficiencies and potential communication failures due to overlapping resource usage.
Innovation Solution
A control device assigns specific frequency and time resources to each scheduler (DU) using a RIC, ensuring non-overlapping allocations through precise resource notifications, and distinguishes between coordinated multi-point (CoMP) and non-CoMP communication scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If one RU is shared by multiple DUs, then resource utilization flexibility is improved, but communication efficiency deteriorates due to uncoordinated resource allocation
Solution Approach 1:
The control device receives radio quality information and traffic amount information from each DU, uses this feedback to determine optimal resource allocations, and notifies the determined resources back to the DUs. This closed-loop feedback mechanism enables coordinated resource sharing while maintaining communication efficiency.
Solution Approach 2:
The control device performs preliminary determination of resource allocations before actual communication occurs. By pre-determining which frequency and time resources each DU should use, the system prevents overlapping allocations and ensures efficient resource utilization from the start.
2Speed
If multiple DUs independently allocate radio resources, then allocation speed is improved, but resource conflicts increase leading to communication failures
Solution Approach 1:
The control device acts as an intermediary between multiple DUs and the radio resources. Instead of DUs independently allocating resources, the control device mediates by receiving information from all DUs, determining non-overlapping allocations, and notifying each DU of its assigned resources, thereby preventing conflicts.
3Stability of the object's composition
If centralized resource allocation is implemented, then coordination between DUs is improved, but control complexity increases
Solution Approach 1:
The control device segments the resource allocation process into distinct functional steps: receiving radio quality information from DUs, receiving traffic amount information from DUs, determining resource allocations, and notifying DUs of assigned resources. This segmentation simplifies the overall control complexity while maintaining coordination.
Data Source
AI summary
A processing apparatus, which functions as a distributed unit (DU) in a radio communication system in which one radio unit (RU) is shared by a plurality of DUs, notifies, to a control device, first information relating to a radio quality and an amount of traffic to be transmitted or received by a terminal device to which the processing apparatus provides a communication service via the one RU, receives, from the control device, second information indicating assignment, to the processing apparatus, of radio resources relating to at least one of frequency and time for the one RU, and at least partially assigns the radio resources indicated by the second information to the terminal device and communicates with the terminal device via the one RU.