Flow-Level Delay Control for Radio Resource Allocation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing solutions for ultra-low latency services in mobile networks face challenges in efficiently allocating radio resources and managing packet processing, leading to potential radio resource insufficiency and increased processing loads due to packet discarding based on predetermined time thresholds.
Innovation Solution
A control device with a deciding unit to determine if the interval between data flow generations exceeds a permissible delay time, and a determination unit to delete non-transmitted data after this time has lapsed, thereby preventing radio resource allocation to data that has exceeded its delay time and reducing processing load by managing data flows collectively rather than individually.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If packets are discarded based on predetermined time thresholds for each individual packet, then service quality is maintained by removing excessive delay packets, but the processing load of the device increases due to per-packet decision making
Solution Approach 1:
The patent merges multiple per-packet delay decisions into a single flow-level decision. Instead of evaluating each packet individually against time thresholds, the system evaluates the entire flow's delay status collectively. This combining approach maintains service quality by still identifying excessive delay flows while dramatically reducing processing load by making one decision per flow rather than one decision per packet.
Solution Approach 2:
The patent segments the data transmission into flows with distinct delay requirements. By grouping packets into flows and managing each flow's delay independently, the system can apply delay management policies at the flow level rather than packet level. This segmentation enables efficient resource allocation and delay control while reducing overall processing complexity.
2Productivity
If radio resources are allocated to packets that exceed permissible delay time, then resource utilization is maximized, but service quality deteriorates due to allocation of resources to late data
Solution Approach 1:
The patent performs preliminary evaluation of flow delay status before radio resource allocation. By determining whether a flow has exceeded its permissible delay time prior to allocating resources, the system prevents allocation to excessive delay packets. This preliminary check ensures that resource utilization is optimized by directing resources only to flows that can still be transmitted within their delay constraints, thereby maintaining service quality.
3Reliability
If per-packet delay evaluation is performed for all data flows, then service quality is maintained by identifying excessive delay packets, but the processing load increases significantly
Solution Approach 1:
The patent combines multiple per-packet delay evaluations into a single per-flow delay evaluation. Instead of checking each packet's delay individually across all flows, the system evaluates the delay status of entire flows collectively. This merging maintains service quality by still identifying flows with excessive delay while improving processing efficiency by reducing the number of evaluation operations from per-packet to per-flow level.
Data Source
AI summary
To provide a control device that can prevent an increase in a processing load and that can effectively allocate a radio resource. A control device (30) according the present disclosure includes: a deciding unit (31) configured to decide whether or not an interval between generation of a first flow that is generated when performing radio communication between a communication terminal (10) and a base station (20) and generation of a second flow that is generated after the generation of the first flow exceeds a permissible delay time of the first flow; and a determination unit (32) configured to determine deletion of non-transmitted data related to the communication terminal (10) after lapse of the permissible delay time of the first flow when it is decided that the generation interval exceeds the permissible delay time of the first flow.