Portable Content Transfer Using BLE for Low-Power Device Discovery
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Solution Overview
Problem
Existing data communication techniques in portable terminals are inconvenient due to complex processes and high power consumption, particularly in wireless transmission methods like Bluetooth and Wi-Fi, which require active modules and prolonged scanning times.
Innovation Solution
A method and apparatus using Bluetooth Low Energy (BLE) for simplified and automated wireless communication, enabling convenient content transmission by broadcasting advertising data to identify compatible devices, selecting optimal communication protocols, and minimizing power consumption through controlled activation of wireless modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If Bluetooth or Wi-Fi modules are activated for data communication, then file transmission capability is improved, but power consumption increases significantly
Solution Approach 1:
The patent employs periodic scanning instead of continuous operation. The receiving terminal scans for incoming connection requests at specific intervals rather than maintaining constant readiness, allowing the Bluetooth module to enter low-power states between scanning periods while still being able to receive transmission requests.
Solution Approach 2:
The system implements automated negotiation and selection mechanisms that operate without continuous user intervention. The terminals automatically negotiate communication parameters, select optimal transmission methods, and manage connection states, reducing the need for active user management and enabling more efficient power management.
2Productivity
If traditional wireless transmission techniques are used, then file transmission is enabled, but the process becomes complicated and inconvenient
Solution Approach 1:
The patent implements automated negotiation mechanisms where terminals automatically exchange capability information, negotiate communication parameters, and select optimal transmission methods without requiring user knowledge of technical details. This self-service approach simplifies the user interface while maintaining robust communication functionality.
Solution Approach 2:
The system performs preliminary capability exchange and negotiation before actual file transmission begins. Terminals pre-negotiate communication parameters, establish connection protocols, and prepare transmission channels in advance, so that when users initiate a transfer, the technical setup is already complete and the process flows smoothly.
3Productivity
If Bluetooth or Wi-Fi modules remain active for receiving files, then data reception capability is improved, but standby power consumption increases
Solution Approach 1:
The receiving terminal implements periodic scanning for incoming connection requests rather than maintaining continuous active listening. The Bluetooth module scans at predetermined intervals and can transition to low-power states between scans, maintaining reception capability while significantly reducing standby power consumption compared to continuous monitoring.
4Difficulty of detecting and measuring
If scanning is performed to identify receiving objects, then device discovery is improved, but time consumption increases
Solution Approach 1:
Terminals perform preliminary broadcasting of their presence and capability information before actual file transmission is needed. This preliminary action allows potential counterpart devices to already know about each other's availability, reducing or eliminating the need for extended scanning periods when transmission is initiated.
Data Source
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AI summary
A method of transmitting contents in a portable terminal is provided. The method includes allowing a portable terminal of a transmitter to be connected to a portable terminal of a receiver by a control communication, allowing the portable terminal of the transmitter to select a type of the data transmission communication with the portable terminal of the receiver through the control communication, allowing the portable terminal of the transmitter to transmit setting data corresponding to the selected type of data transmission communication to the portable terminal of the receiver through the control communication, and allowing the portable terminal of the transmitter to be connected to the portable terminal of the receiver by the control communication and to transmit the content which are requested to be transmitted, to the portable terminal of the receiver.