USB Wireless Power Management via Wired State Detection
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Solution Overview
Problem
In Wi-Fi serial bus (WSB) communication environments, the power of electronic devices is inefficiently consumed due to mismatched operation environments between wired and wireless communication states, leading to attenuated available power.
Innovation Solution
An electronic device with a USB connector and wireless communication circuitry adjusts a power saving scheme by determining the wired communication state with a first external device and controlling wireless communication accordingly, using a notice of absence (NOA) protocol to synchronize attributes and manage power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electronic device performs both wired communication and wireless communication simultaneously, then communication functionality is improved, but power consumption increases due to mismatched operation environments
Solution Approach 1:
The patent applies dynamics by making the wireless communication operation mode adjustable and adaptive. The electronic device dynamically switches between different operation modes (first mode with continuous transmission, second mode with periodic transmission) based on the wired communication state. This allows the system to adapt its power consumption characteristics to match the actual communication requirements, resolving the contradiction between maintaining communication functionality and reducing power waste.
Solution Approach 2:
The patent changes the transmission parameter from continuous transmission to periodic transmission with configurable intervals. By adjusting the transmission interval parameter based on the wired communication state, the system optimizes power consumption while maintaining necessary communication functionality. This parameter change directly addresses the power consumption issue caused by mismatched operation environments.
2Reliability
If the wireless communication operates continuously to maintain connectivity, then communication reliability is improved, but available power is attenuated due to inefficient power consumption
Solution Approach 1:
The patent implements periodic action by switching from continuous transmission to periodic transmission with configurable intervals. The wireless communication circuitry transmits data at specific intervals rather than continuously, which significantly reduces power consumption while maintaining communication reliability. The periodic transmission ensures the connection remains active and functional without the energy waste of continuous operation.
3Speed
If the electronic device uses high power mode for wireless communication, then data transmission rate is improved, but overall power efficiency deteriorates when wired communication state does not correspond
Solution Approach 1:
The patent applies dynamics by making the transmission mode flexible and adaptable rather than fixed. The system can dynamically select between high-speed continuous transmission mode and power-efficient periodic transmission mode based on the wired communication state. This dynamic adaptation allows the device to optimize the balance between data transmission rate and power efficiency for each specific operating condition.
Solution Approach 2:
The patent changes the transmission parameter from fixed high-power mode to variable mode with configurable transmission intervals. By adjusting the transmission interval parameter, the system can achieve power-efficient operation when high data rates are not critical, while still maintaining the capability for high-speed transmission when needed. This resolves the contradiction by making power efficiency conditional on the actual communication requirements.
Data Source
AI summary
An electronic device is disclosed that includes a housing, a universal serial bus (USB) connector exposed through one region of the housing, a wireless communication circuitry supporting short-range wireless communication, at least one processor electrically connected with the USB connector and the wireless communication circuitry, and a memory electrically connected with the processor. The memory stores instructions, when executed, causing the at least one processor to, while the USB connector is connected with a first external device and while the wireless communication circuitry performs wireless communication with a second external device, determine a wired communication state with the first external device through the USB connector and adjust a power saving scheme for the wireless communication based at least in part on the determined state. In addition, various embodiments recognized through the specification are possible.