Antenna Beam Control Initiation from Predicted Vehicle Trajectories
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Solution Overview
Problem
The narrow beam width of mmWave frequencies in 5G networks increases the risk of sudden beam detachment, which can disrupt communication, especially in critical applications like autonomous driving, leading to potential accidents.
Innovation Solution
A method for proactive beam control using mobility awareness information to predict trajectories and spatial configurations of vehicles, enabling efficient beam attachment, maintenance, and detachment through separate communication channels at FR1 and FR2.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If narrow beam width is used in FR2 for precise signal targeting, then signal precision and capacity are improved, but beam detachment risk increases
Solution Approach 1:
The system performs preliminary actions by predicting future trajectories of both apparatuses and identifying potential detachment points before beam detachment actually occurs. This allows proactive beam control actions to be initiated, maintaining beam connection reliability while preserving the narrow beam width benefits for signal precision.
Solution Approach 2:
The system establishes a feedback loop where mobility awareness information is continuously exchanged between apparatuses, beam connection status is monitored, and beam control actions are adjusted based on predicted trajectory changes. This feedback mechanism ensures reliable beam connection while maintaining precise signal targeting through narrow beams.
2Reliability
If mobility awareness information is exchanged via FR1 while beam control is performed via FR2, then communication reliability is improved, but system complexity increases
Solution Approach 1:
The system segments communication functions into two distinct channels: FR1 is dedicated to exchanging mobility awareness information with higher reliability, while FR2 is used for beam control actions. This segmentation allows each frequency range to be optimized for its specific function, improving overall communication reliability while managing system complexity through clear functional separation.
Data Source
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AI summary
The invention relates to a method (100) for initiating a beam control action, wherein an apparatus (10) comprises an antenna system (11), wherein a further apparatus (20) comprises a further antenna system (21), wherein the method (100) comprises the following steps performed at the apparatus (10): - Providing (101) a connection to the further apparatus (20) via a first communication link, - Determining (102) a prediction of a trajectory (1) of the apparatus (10) for a given time period, wherein the trajectory (1) is defined as the apparatus' and/or the antenna system's path based on space and time, in particular based on coordinates and on time points, - Receiving (103) a signalling via the first communication link comprising a mobility awareness information of the further apparatus (20), wherein the mobility awareness information comprises a prediction of a further trajectory (2) of the further apparatus (20) for the given time period and a spatial configuration of the further antenna system (21), wherein the spatial configuration of an antenna system comprises information regarding a geometry, an orientation and/or a configuration of the antenna system, - Verifying (104) if a beam pair (15, 25) is connected between the two antenna systems (11, 21), - Initiate (105) a beam control action depending on the result of the verification (103) via a second communication link. Further, the invention refers to an apparatus, a system, and a computer program.