Bluetooth Advertising Interval Switching for Faster Pairing
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Solution Overview
Problem
Bluetooth communication between electronic devices can be delayed due to obstacles or multiple devices in proximity, causing inconvenience to users.
Innovation Solution
Electronic devices transmit first and second advertising packets with different periods based on the situation of the external device, allowing for faster Bluetooth connection establishment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If advertising packets are transmitted at a standard period, then power consumption is reduced and device complexity is minimized, but Bluetooth connection establishment time increases when obstacles or multiple devices are present
Solution Approach 1:
The patent applies dynamics by making the advertising packet transmission period adjustable rather than fixed. The system dynamically switches between a first period (faster transmission) and a second period (slower transmission) based on the determined situation. When obstacles or multiple devices are detected, the system uses the first period to reduce connection time; otherwise, it uses the second period to conserve power and reduce complexity.
Solution Approach 2:
The patent changes the transmission period parameter based on the situation determined from scan address information. By modifying this key parameter (transmission period) between two defined values, the system adapts to different environmental conditions, resolving the contradiction between connection speed and power consumption/complexity.
2Speed
If advertising packets are transmitted more frequently to reduce connection time, then Bluetooth connection establishment speed improves, but power consumption increases
Solution Approach 1:
The system dynamically adjusts transmission frequency based on situational needs. Instead of continuously transmitting at high frequency (which would waste power), the system only increases transmission frequency (uses first period) when the situation indicates obstacles or multiple devices are present and fast connection is needed. Otherwise, it uses the second period to conserve power.
Solution Approach 2:
The transmission period parameter is changed between two values based on power vs. speed trade-offs. The first period (shorter duration) provides faster connection at higher power consumption, while the second period (longer duration) reduces power consumption. The situation-based selection resolves this contradiction.
Data Source
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AI summary
An electronic device according to various embodiments may include a communication circuit, a processor operatively coupled to the communication circuit, and a memory operatively coupled to the processor, wherein the memory stores instructions, when executed, causing the at least one processor to transmit a first advertising packet of a first type, having a first period, via the communication circuit, determine a situation of an external electronic device by identifying scan address information included in an additional information request signal in response to reception of the additional information request signal from the external electronic device which has received the first advertising packet, transmit a second advertising packet of a second type, having a second period faster than the first period, via the communication circuit, based on the situation of the external electronic device, and establish a Bluetooth communication connection with the external electronic device in response to reception of a connection request signal. Other embodiments are also possible.