Radio Protocol Capability Exchange for Spectrum Utilization
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Solution Overview
Problem
Current Bluetooth radio communication devices inefficiently detect and utilize radio spectrum usage, leading to power wastage and slow protocol switching due to reliance on energy measurement and lack of active protocol information.
Innovation Solution
A communication device with a receiver to obtain information about other devices' radio protocol capabilities, including performance, capacity, and operational frequency parameters, allowing for intelligent protocol selection and efficient spectrum use without activating all radios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If energy measurement methods are used to detect radios in the area, then device discovery can be performed, but power consumption increases and no reliable information about radio channel usage is obtained
Solution Approach 1:
The patent applies preliminary action by having devices exchange capability information (FHS packets) during the inquiry phase before actual communication begins. This allows the detecting device to obtain advance knowledge of radio channel usage and protocols without needing to activate all radios for measurement, thus resolving the contradiction between information acquisition and power consumption.
2Loss of information
If all radios are activated to detect radio spectrum usage, then complete information about channel usage is obtained, but power consumption increases significantly
Solution Approach 1:
The patent extracts only the necessary information about radio protocol capabilities and channel usage from the FHS packets exchanged during inquiry, rather than activating all radios to perform comprehensive measurements. This selective information extraction resolves the contradiction by obtaining sufficient data with minimal power consumption.
3Ease of operation
If energy measurement is used to predict radios in the area, then device discovery is possible, but the predicted radios may not actually exist and no channel usage information is obtained
Solution Approach 1:
The patent implements feedback by using the capability information obtained from FHS packets to verify and refine the list of detected radios. Devices provide feedback about their actual protocols and channel usage, allowing the detecting device to confirm which predicted radios actually exist and are actively using the spectrum, thus resolving the reliability issue.
Data Source
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AI summary
A communication device comprising: a receiver for receiving information via a first radio protocol directly from a first communication device concerning at least a second radio protocol; and a controller for controlling communication of the communication device in dependence upon the received information.