Aircraft Uplink Bandwidth Adjustment for Firmware Updates
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Solution Overview
Problem
Current aircraft communication systems have asymmetric bandwidths, particularly with limited uplink bandwidth from a remote controller to an aircraft, which hinders efficient data transmission, such as firmware updates, due to insufficient communication design.
Innovation Solution
The system allows for flexible adjustment of uplink bandwidth between an aircraft and an external device based on data transmission requests, using Software Defined Radio (SDR) firmware to switch and increase bandwidth as needed, enabling faster data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the uplink bandwidth is increased to satisfy large data transmission demands, then the data transmission speed improves, but the device complexity increases
Solution Approach 1:
The patent implements dynamic bandwidth adjustment by allowing the aircraft to switch between different bandwidth modes (first bandwidth and second bandwidth) based on data transmission demands. The processor determines whether to switch bandwidth modes according to the characteristics of incoming data, enabling the communication system to adapt its uplink bandwidth dynamically rather than using a fixed configuration.
Solution Approach 2:
The patent changes the bandwidth parameter of the communication system based on different transmission needs. By switching between a first bandwidth mode (lower bandwidth) and a second bandwidth mode (higher bandwidth), the system adjusts the uplink bandwidth parameter to match the data transmission requirements, thereby improving transmission speed when needed while maintaining lower complexity during normal operations.
2Device complexity
If the uplink bandwidth is fixed at a low level to maintain system simplicity, then the device complexity remains low, but the data transmission efficiency deteriorates
Solution Approach 1:
The communication system transitions from a static bandwidth configuration to a dynamic one where the bandwidth mode can be switched based on transmission demands. The processor monitors data transmission requests and automatically switches between bandwidth modes, making the system simple to configure yet highly efficient in practice.
Solution Approach 2:
The uplink communication channel is designed to serve multiple functions by operating in different bandwidth modes. The same physical channel can handle both low-bandwidth control commands and high-bandwidth data transmissions by switching modes, making the system universally applicable to various transmission scenarios without requiring separate dedicated channels.
3Loss of time
If the uplink bandwidth is increased for firmware updates, then the update speed improves, but the energy consumption increases
Solution Approach 1:
The system uses periodic or conditional bandwidth switching rather than continuous high-bandwidth operation. The processor evaluates whether firmware update conditions are met and only switches to high-bandwidth mode when necessary, otherwise maintaining low-bandwidth operation. This periodic assessment and switching pattern reduces overall energy consumption while still achieving fast updates when needed.
Solution Approach 2:
The bandwidth mode is dynamically adjusted based on the specific transmission task. During firmware updates, the system switches to high-bandwidth mode to reduce update time, but returns to low-bandwidth mode for normal operations, thereby optimizing the balance between update speed and energy consumption.
Data Source
AI summary
A wireless communication method includes receiving a data transmission request. The wireless communication method also includes increasing a transmission bandwidth of an uplink based on the data transmission request. The wireless communication method also includes receiving data to be transmitted through the uplink. The uplink is a communication link through which an external device transmits data to an aircraft.