Wireless Firmware Update Angle Verification
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Solution Overview
Problem
In wireless communication systems, there is a risk of unintended firmware updates due to third-party or user errors during Over The Air (OTA) firmware updates, which can lead to unauthorized or accidental changes in device software.
Innovation Solution
A wireless communication system comprising a first device that transmits signals with information for updating firmware and a second device that computes the angle of departure of the radio wave, allowing only updates from devices with a predetermined angle of departure to proceed, thereby ensuring intended firmware updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If OTA firmware update is enabled for convenience, then ease of operation is improved, but security against unauthorized updates deteriorates
Solution Approach 1:
The patent introduces an angle-of-departure verification mechanism as an intermediary between the firmware update request and the actual update execution. The second device computes the angle of departure of received radio waves and compares it against predetermined values before accepting firmware updates. This intermediary security check allows convenient OTA updates while preventing unauthorized updates from unauthenticated devices.
2Adaptability or versatility
If firmware update is allowed from any device, then adaptability is improved, but security against third-party interference deteriorates
Solution Approach 1:
The angle-of-departure verification acts as an intermediary authentication mechanism that maintains firmware update flexibility while blocking third-party interference. The second device accepts firmware only when the computed angle of departure matches predetermined values associated with authorized first devices, thus enabling adaptable updates from legitimate sources while preventing harmful injections from unauthorized third parties.
Solution Approach 2:
The system implements feedback through angle-of-departure verification, where the second device continuously monitors the angle of departure of incoming radio waves and uses this feedback to determine whether to accept firmware updates. This feedback mechanism ensures that only firmware from authenticated devices with matching angle patterns is accepted, maintaining both flexibility and security.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution prevents unauthorized firmware updates by ensuring that only updates from devices with a predetermined angle of departure are accepted, enhancing security and accuracy in firmware updates.
Implementation Method 1
the second device that computes the angle of departure of the radio wave transmitted from the first device
Data Source
AI summary
A wireless communication system according to an embodiment comprises a first wireless communication device and a second wireless communication device. The first wireless communication device is configured to transmit a signal related to program. The second wireless communication device is configured to compute an angle of departure from the first wireless communication device based on a radio wave transmitted from the first wireless communication device, and to perform updating of the program when a computed angle of departure is a predetermined angle.