Network Node Beam Selection Prediction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in quickly selecting optimal beams during fast-changing radio environments, leading to potential loss of communication connections due to insufficient time to detect and configure new beams.
Innovation Solution
A method where a network node predicts upcoming beam availability based on historic signal quality data and movement patterns, configures a dedicated beam reference signal, and transmits it to the wireless device, allowing the device to select an optimal beam before the current beam is lost, thereby reducing the time to establish a new connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wireless device performs beam detection and configuration in real-time when signal quality degrades, then the system can adapt to changing conditions, but the time delay increases and connection loss risk increases
Solution Approach 1:
The network node performs preliminary beam selection and configuration before the current beam is lost. By predicting upcoming beam availability based on historic data and movement patterns, the system pre-configures candidate beams so that when the current beam fails, the wireless device can immediately switch without experiencing connection loss or significant time delay.
2Measurement precision
If the network node provides detailed beam information and configuration options, then the wireless device can make optimal beam selection, but the system complexity and processing requirements increase
Solution Approach 1:
The network node uses feedback from historic beam quality data and wireless device movement patterns to predict future beam availability. This feedback mechanism allows the network to automatically determine optimal beam configurations without requiring the wireless device to perform complex real-time analysis, thereby maintaining high measurement precision while reducing device complexity.
Solution Approach 2:
The network node acts as an intermediary that performs complex beam analysis and prediction calculations. Instead of requiring the wireless device to process detailed beam information, the network node prepares and provides pre-processed beam configuration data, simplifying the device's task while maintaining optimal beam selection capability.
3Ease of operation
If the system waits for the current beam to fail before initiating beam switching, then the procedure is simple, but connection continuity is lost and service interruption occurs
Solution Approach 1:
The system performs beam switching preparation in advance based on predicted beam availability. By identifying when the current beam will be lost and pre-configuring replacement beams, the system maintains connection continuity without requiring complex real-time decision-making procedures. The wireless device simply executes the pre-planned beam switch when the prediction triggers, keeping the operation simple while preventing connection interruptions.
Data Source
AI summary
A Network Node (NN) 208 and a method therein for beam selection. When an upcoming ability to serve a Wireless Device (WD) 210 using a current NN beam is predicted to be lost based on historic data, the NN selects an upcoming NN beam out of one or more candidate NN beams that are able to serve the WD when the NN has lost ability to serve the WD using the current NN beam. The NN configures a dedicated Beam Reference Signal (BRS) for the upcoming NN beam, which is to be detected in beam selection by the WD when the NN loses ability to serve the wireless device using the current NN beam. By means of the current NN beam, the NN transmits, to the WD, a configuration of the dedicated BRS. Further, by means of the upcoming NN beam, the NN transmits, to the WD, the dedicated BRS.