RAN Base Station Control Using Predicted Network States
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing RAN control systems fail to meet the requirements of separation from the RAN, centralized control, real-time capability, and high reliability, often satisfying only two out of four key performance criteria.
Innovation Solution
A control device predicts RAN states at a future time point, generates control messages based on these predictions, and transmits them to base stations, which adjust their functions using decentralized applications to match actual RAN conditions, ensuring timely and reliable control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If control messages are generated based on current RAN state without prediction, then the control system is simple and fast to respond, but the control accuracy deteriorates because the control messages do not match the actual RAN state at reception time
Solution Approach 1:
The control device performs preliminary action by predicting the RAN state at a future time point (arrival time) before generating control messages. This prediction-based approach ensures that control messages are tailored to match the actual RAN state when they arrive at base stations, thereby improving control accuracy while maintaining system simplicity through centralized prediction functionality.
2Productivity
If control device generates control messages at very short intervals to achieve real-time control, then the real-time capability is improved, but the processing load and complexity increase
Solution Approach 1:
The control device generates control messages in advance at prediction time points before the arrival time of the messages at base stations. This preliminary generation approach allows the system to achieve real-time control effectiveness without requiring extremely high message generation frequencies, as each message is pre-calculated to match its target arrival state, thereby improving control speed while managing processing load efficiently.
Data Source
AI summary
Provided is a control system including: a control device which controls a plurality of base stations arranged in a RAN; and a control unit which is mounted on one base station among the plurality of base stations and which controls the one base station, wherein the control device includes a prediction unit which predicts a state of the RAN at a prediction timing, a generation unit which generates the control message based on the state of the RAN predicted, and a transmission unit which transmits the control message to the one base station, and wherein the control unit includes a reception unit which receives the control message, an acquisition unit which acquires a state of the RAN at a reception timing, and a processing unit which executes processing related to control of the one base station based on the control message and the state of the RAN acquired.