Mobile Terminal Sigfox Communication Control
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Solution Overview
Problem
In ultra-low power consumption communication techniques like Sigfox, mobile terminals cannot determine if data is correctly received by the base station due to the lack of acknowledgement, leading to potential battery waste when transmitting data in unfavorable conditions such as high speeds or distances.
Innovation Solution
A mobile terminal with a specifying unit to determine its state, a determination unit to assess if the state meets a predetermined condition, and a communication control unit to initiate communication only when the condition is satisfied, ensuring efficient data transmission and conserving battery power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If mobile terminal transmits data via Sigfox communication without acknowledgement, then power consumption is reduced, but communication reliability deteriorates
Solution Approach 1:
The patent applies preliminary action by evaluating communication conditions (distance to base station, movement state) before initiating data transmission. The determination unit assesses whether the mobile terminal is in a suitable state for communication, and only starts transmission when conditions are favorable, thereby preventing wasted power consumption while maintaining communication reliability.
2Productivity
If mobile terminal transmits data regardless of communication conditions, then communication frequency is increased, but battery power is wasted
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the communication transmission decision based on evaluated parameters such as distance to base station and movement state. The determination unit changes the transmission parameter (whether to transmit) according to the current communication conditions, thereby increasing communication frequency when conditions are favorable and avoiding power waste when conditions are unfavorable.
Data Source
AI summary
A mobile terminal having a second communication device performing Sigfox communication, which is a wireless communication standard such that an acknowledgement is not sent back even when data is received, includes: a specifying unit specifying a state of the mobile terminal; a determination unit determining whether the state specified by the specifying unit satisfies a predetermined condition or not; and a communication control unit starting Sigfox communication using the second communication device, when the determination unit determines that the predetermined condition is satisfied.