Satellite Beam Protocol Switching for Traffic-Driven Power Control
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Solution Overview
Problem
The limitations of downlink beam power from space-based phased-array antennas in low-Earth orbit satellite constellations, particularly in minimizing peak-to-average power ratio (PAPR) across antenna elements, and the need for efficient resource allocation in satellite communication systems.
Innovation Solution
A satellite communication system that dynamically switches between high-power, high-bandwidth and low-power, low-bandwidth transmission protocols based on actual or expected data traffic, utilizing on-demand resource allocation and selective switching between TDMA and SCPC, GSM and LTE, to optimize bandwidth and power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-power, high-bandwidth transmission protocol is used, then communication capacity and data rate are improved, but power consumption and peak-to-average power ratio increase
Solution Approach 1:
The system dynamically switches between high-power/high-bandwidth and low-power/low-bandwidth transmission protocols based on actual or expected data traffic conditions. This dynamic adaptation allows the satellite communication system to optimize power consumption while maintaining communication capacity when needed, directly resolving the contradiction between productivity and energy use.
Solution Approach 2:
The invention changes transmission protocol parameters (power level, bandwidth) based on traffic conditions. By selecting between different transmission protocols with varying power and bandwidth characteristics, the system adjusts its operational parameters to match actual communication needs, thereby improving power efficiency without sacrificing communication capacity when required.
2Productivity
If transmission resources are allocated statically, then system complexity is reduced, but resource utilization efficiency deteriorates
Solution Approach 1:
The system performs self-service by automatically selecting appropriate transmission protocols based on monitored traffic conditions. The base station or satellite autonomously determines when to switch between high-power and low-power modes without requiring complex external resource allocation management, thereby improving resource utilization while keeping system complexity manageable.
Solution Approach 2:
The system uses feedback from actual or expected data traffic conditions to drive transmission protocol selection. This feedback mechanism enables the system to adapt resource allocation dynamically based on real-world performance needs, improving resource utilization efficiency while maintaining relatively simple control logic through rule-based switching.
3Use of energy by moving object
If satellite switches between transmission protocols, then power efficiency is improved, but communication continuity may be affected
Solution Approach 1:
The system performs preliminary actions by switching transmission protocols based on expected data traffic before actual high-demand communication occurs. This proactive approach allows the system to be pre-positioned in the appropriate transmission mode, ensuring communication continuity while optimizing power efficiency without disruptive mid-communication protocol switches.
Data Source
AI summary
Aspects of the technology involve a satellite communication system comprising a base station that communicates with standard compliant user equipment (UE) via a satellite having a field of view. The base station includes a processing device configured to generate a satellite beam at the satellite having a first transmission protocol or a second transmission protocol. The processing device is able to selectively switch between the first transmission protocol and the second transmission protocol based on an actual amount of data traffic by the UE in the field of view or an expected amount of data traffic by the UE in the field of view.