Antenna Panel Beam Switching for Blockage Recovery
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Solution Overview
Problem
In high-frequency communication systems, antenna blockages due to user handling can lead to signal quality loss, causing beam failure and prolonged link reconstruction times, which existing beam failure recovery mechanisms struggle to address effectively.
Innovation Solution
A method for monitoring antenna blockages by tracking quality loss across multiple downlink beams and triggering a beam switching request to the network-side device when a predetermined number of beams experience quality loss, allowing for timely switching to an unblocked antenna panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam failure recovery mechanism is used in high-frequency communication systems, then link reconstruction can be performed after blockage, but the link reconstruction time is prolonged
Solution Approach 1:
The patent applies preliminary action by pre-monitoring the quality of multiple downlink beams before complete link failure occurs. The terminal device continuously tracks quality loss across multiple beams and proactively triggers beam switching when a predetermined number of beams experience quality loss, rather than waiting for complete link failure. This advance detection and switching mechanism reduces the time required for link reconstruction after blockage.
2Loss of time
If multiple downlink beams are monitored for quality loss, then beam switching can be triggered timely, but the monitoring complexity increases
Solution Approach 1:
The patent applies partial action by monitoring a specific predetermined number of downlink beams (which is less than the total number of available beams) for quality loss. This selective monitoring approach allows the system to detect blockage conditions timely while avoiding the excessive complexity of monitoring all possible beams. The predetermined number is configured to provide sufficient detection capability without overwhelming the terminal device's processing resources.
Data Source
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AI summary
A beam switching method, a mobile terminal and a computer-readable storage medium are provided. The method includes: monitoring whether a first blockage event occurs to an antenna of a terminal; and transmitting a beam switching request to a network-side device, in a case that the first blockage event occurs. The first blockage event comprises that a quality loss occurs to beam links corresponding to at least a second predetermined number of downlink beams, the second predetermined number of downlink beams are from a first predetermined number of downlink beams corresponding to one antenna panel of the terminal, and the first predetermined number is greater than or equal to the second predetermined number.