Wireless Device Beam Reconfiguration Synchronization
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Solution Overview
Problem
Non-terrestrial wireless communication networks face challenges in maintaining time and frequency synchronization during beam reconfiguration, which can disrupt service and data transmission.
Innovation Solution
The network informs wireless devices about beam reconfiguration, enabling them to reacquire time and frequency synchronization, thus adapting to changes and preserving synchronization while allowing for flexible beam reconfiguration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the satellite dynamically reconfigures beams to adapt to changing service needs, then frequency reuse and data rate are improved, but time and frequency synchronization is disrupted
Solution Approach 1:
The network node performs preliminary action by notifying the wireless device about upcoming beam reconfiguration before it actually occurs. This allows the wireless device to prepare for synchronization reacquisition in advance, reducing the disruptive impact of beam changes while maintaining flexibility for high frequency reuse and data rate optimization.
Solution Approach 2:
The system implements feedback mechanisms where the network node provides information about beam reconfiguration to the wireless device. This feedback loop enables the wireless device to adjust its synchronization parameters accordingly, ensuring that the benefits of dynamic beam reconfiguration (improved productivity) are achieved without sacrificing synchronization reliability.
2Productivity
If beam reconfiguration is performed to achieve high frequency reuse, then service coverage and data rate are improved, but service continuity is disrupted
Solution Approach 1:
The network node notifies the wireless device about beam reconfiguration in advance, allowing the device to prepare for potential service interruptions and reacquire synchronization before the actual reconfiguration occurs. This preliminary notification mechanism helps maintain service continuity by enabling proactive adaptation rather than reactive response to beam changes.
Solution Approach 2:
The system provides beforehand cushioning by equipping the wireless device with knowledge of upcoming beam reconfiguration through network notifications. This allows the device to buffer against synchronization disruptions by pre-adjusting its timing and frequency parameters, thereby maintaining service continuity while enabling high frequency reuse strategies.
3Adaptability or versatility
If the wireless device is insulated from beam reconfiguration knowledge, then network flexibility is maintained, but synchronization accuracy is compromised
Solution Approach 1:
The network implements feedback by providing the wireless device with information about beam reconfiguration. This feedback mechanism ensures that the wireless device maintains synchronization accuracy while the network retains flexibility for dynamic beam management. The feedback loop allows the device to accurately track and compensate for beam changes without compromising either synchronization precision or network adaptability.
Data Source
AI summary
A wireless device (18) is configured for use in a wireless communication network (10), e.g., a non-terrestrial network. The wireless device (18) is configured to receive, from a network node (20) in the wireless communication network (10), signaling (22) that indicates reconfiguration of a beam (16) serving the wireless device (18). The wireless device (18) in some embodiments is also configured to, responsive to receiving the signaling (22), reacquire time and/or frequency synchronization for the beam (16), e.g., to account for the indicated reconfiguration of the beam (16).