Satellite Beam Blanking for Co-Channel Bandwidth Reallocation
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Solution Overview
Problem
Current implementations of direct to cell mobile satellite communications utilize static frequency bandwidth assignments that may not provide adequate bandwidth for successful communication, leading to noise and interference due to neighboring beams.
Innovation Solution
Implement dynamic beam blanking and spectrum reservation by determining antenna beamwidth based on usage thresholds, generating dynamic antenna beam blanking commands to adjust neighboring co-channel beams, and reallocating them to primary beams to enhance bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If static frequency bandwidth is assigned to neighboring beams, then device complexity is reduced and ease of operation is improved, but bandwidth sufficiency deteriorates and communication reliability worsens
Solution Approach 1:
The patent implements dynamic beam blanking where the network device dynamically adjusts the beamwidth of neighboring beams based on real-time bandwidth requirements of the primary beam. This allows the system to adapt bandwidth allocation dynamically rather than using static assignments, resolving the contradiction between operational simplicity and communication reliability.
Solution Approach 2:
The patent changes the beamwidth parameter of neighboring beams dynamically. When the primary beam requires more bandwidth, the network device generates beam blanking commands to reduce the beamwidth of neighboring beams, thereby releasing spectral resources to the primary beam while maintaining overall system reliability.
2Device complexity
If static frequency bandwidth is assigned to neighboring beams, then device complexity is reduced, but bandwidth sufficiency and productivity deteriorate
Solution Approach 1:
The system transitions from static to dynamic bandwidth management through beam blanking commands. The network device monitors bandwidth usage and dynamically adjusts neighboring beam beamwidths, enabling the system to maintain low complexity while achieving sufficient communication bandwidth through automated dynamic allocation.
Solution Approach 2:
The system implements self-service bandwidth allocation where the network device automatically generates beam blanking commands based on observed bandwidth requirements. This eliminates the need for complex manual bandwidth management while ensuring adequate bandwidth availability for communication operations.
3Quantity of substance
If neighboring beams use co-channel frequencies, then spectrum utilization is improved, but noise and interference increase
Solution Approach 1:
The patent applies dynamic beam blanking to manage co-channel interference. When interference levels exceed thresholds, the network device dynamically reduces the beamwidth of neighboring beams, thereby limiting their spatial coverage and reducing interference to the primary beam while maintaining efficient spectrum utilization through co-channel assignment.
Solution Approach 2:
The patent implements local quality control by applying beam blanking selectively to specific neighboring beams based on their individual interference characteristics. The network device generates beam blanking commands tailored to each neighboring beam's contribution to interference, optimizing the balance between spectrum utilization and interference mitigation.
Data Source
AI summary
A method of dynamic beam blanking in a network including an aerospace access point is provided. Multiple antenna beams may be provided in addition to a primary antenna beam. First a determination of an antenna beamwidth of a primary antenna beam is made. The antenna beamwidth is based on a usage threshold of the primary antenna beam. When the antenna beamwidth is above the usage threshold at least one dynamic antenna beam blanking commend is generated for at least one first neighboring co-channel antenna beam used by at least one second user device. The second user device is then directed to at least one second neighboring co-channel antenna beam that is not affected by the dynamic antenna beam blanking command. The blanked first neighboring co-channel antenna beam is then added to the primary antenna beam.