Variable Duty Cycle Wireless Link Reconnection
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently reconnecting disconnected links between electronic devices due to increased distance or signal interference, leading to power consumption and network performance degradation.
Innovation Solution
Implementing a variable duty cycle for reconnecting wireless communication links based on characteristics such as connection state, signal strength, and device motion, allowing for adaptive reconnection attempts that balance power efficiency and network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous reconnection attempts are made for disconnected wireless links, then network performance is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic adjustment of reconnection duty cycle based on connection characteristics. The mobile device monitors the state of a first wireless connection (e.g., Bluetooth Low Energy Long Range) and adjusts the reconnection attempt frequency for a second connection (e.g., Bluetooth Low Energy Classic) accordingly. When the first connection is strong, reconnection attempts occur more frequently; when weak or disconnected, attempts are reduced or suspended, optimizing the balance between network performance and power consumption.
Solution Approach 2:
The patent changes the duty cycle parameter for reconnection attempts based on the state of the first wireless connection. The duty cycle represents the proportion of time allocated to reconnection attempts versus idle time. By adjusting this parameter dynamically according to connection quality metrics (signal strength, connection state), the system optimizes power consumption while maintaining acceptable network performance.
2Reliability
If frequent reconnection attempts are made, then network performance is improved, but network resource degradation increases
Solution Approach 1:
The system dynamically adjusts reconnection attempt frequency based on the state of the first wireless connection. When the first connection is stable and strong, the system can afford more frequent reconnection attempts for the second link. When the first connection deteriorates, reconnection attempts are reduced to minimize interference and resource consumption on the network, thus reducing network resource degradation while maintaining essential connectivity.
3Use of energy by moving object
If reconnection attempts are reduced to save power, then power consumption decreases, but network performance deteriorates
Solution Approach 1:
The patent changes the duty cycle parameter for reconnection attempts based on the state of the first wireless connection. By adjusting this parameter dynamically according to connection quality metrics (signal strength, connection state), the system optimizes power consumption while maintaining acceptable network performance. When the first connection is strong, the duty cycle increases to improve network performance; when weak, the duty cycle decreases to save power.
4Reliability
If multiple wireless connections are maintained, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent employs multiple wireless connection types (e.g., Bluetooth Low Energy Long Range and Bluetooth Low Energy Classic) between the same pair of devices. The first connection serves as a power-efficient monitoring channel that also provides communication capability, while the second connection provides alternative communication path. This multi-functionality approach improves communication reliability without proportionally increasing device complexity, as the same hardware radio can serve multiple purposes.
Data Source
AI summary
In an example method, a mobile device establishes a first wireless communications link and a second wireless communications link with a second device, and determines that the second wireless communications link is not connected. Responsive to determining that the second wireless communications link is not connected, the mobile device attempts to reestablish the second wireless communications link with the second device according to a duty cycle that varies based at least on a characteristic associated with the first wireless communications link.