Wireless Audio Device State Broadcasting with Adaptive Advertising
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication networks, particularly Bluetooth LE networks, lack efficient methods for devices to broadcast their state changes, leading to suboptimal power consumption and delayed device interaction.
Innovation Solution
Wireless devices, such as wireless audio buds, adjust their advertising parameters based on state changes, including transmission rate, duration, and payload, to efficiently broadcast device states to nearby devices, ensuring timely interaction and resource conservation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If wireless devices use fixed advertising parameters for broadcasting device states, then the implementation is simple, but the power consumption is suboptimal and device interaction is delayed
Solution Approach 1:
The patent applies dynamics by making advertising parameters variable rather than fixed. The device dynamically adjusts advertising transmission rate, duration, and payload based on its current state (e.g., charging state, connection state, audio playing state). This allows the system to optimize power consumption by reducing advertising frequency during stable states while enabling faster device interaction when state changes occur, thus resolving the contradiction between energy efficiency and response time.
Solution Approach 2:
The patent implements parameter changes by modifying advertising parameters (transmission rate, duration, payload content) according to device state. When the device detects a state change, it changes the advertising parameters to broadcast the new state more frequently or with updated information. This approach reduces unnecessary power consumption during stable states while ensuring timely state propagation when changes occur, addressing both power efficiency and interaction delay concerns.
2Speed
If wireless devices increase advertising transmission frequency to improve state propagation speed, then device interaction responsiveness improves, but power consumption increases
Solution Approach 1:
The system dynamically adjusts advertising transmission frequency based on device state stability. During stable states, the advertising frequency is reduced to conserve power. When state changes are detected, the frequency increases automatically to ensure rapid state propagation. This dynamic adjustment resolves the contradiction by matching transmission speed to actual need, avoiding unnecessary power consumption while maintaining fast response when required.
Solution Approach 2:
The patent uses periodic advertising actions with variable periods. Instead of continuous high-frequency transmission, the device employs periodic advertising where the period length adapts based on state changes. During stable operation, longer periods reduce power consumption. Upon state change, the period shortens to accelerate state propagation. This periodic approach with adaptive timing resolves the speed-power consumption tradeoff.
3Loss of information
If wireless devices broadcast detailed state information frequently, then device interaction accuracy improves, but network traffic and power consumption increase
Solution Approach 1:
The patent applies local quality by customizing advertising payload content according to the specific device state. Different states trigger different levels of information detail in the advertising packet. For example, during charging state, only essential charging information is broadcast, while during audio playing state, more detailed audio state information is included. This selective information broadcasting maintains state information accuracy while minimizing unnecessary power consumption and network traffic.
Solution Approach 2:
The system uses partial action by broadcasting only the necessary state information rather than complete state details in all advertising packets. When device state changes, the advertising payload includes updated state information; when state remains stable, minimal or no state information is broadcast. This partial information approach maintains sufficient state awareness for device interaction while significantly reducing power consumption and network traffic compared to frequent full-state broadcasting.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Apparatuses, systems, and methods broadcast a device state in a wireless communication network. A wireless audio output device is configured to be paired with a second wireless device via a first piconet connection, wherein the second wireless device comprises a source of audio data to be output by the wireless audio output device. The wireless audio output device includes a processor configured to detect a change in the state of the wireless audio output device and set a transmission parameter of a broadcast transmission based at least in part on the detected change in the state and a transceiver configured to broadcast an advertising message to the second wireless device including information describing the wireless audio output device via the broadcast transmission.