Wireless Terminal Amplifier Control for Low-Power Positioning
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Solution Overview
Problem
Conventional wireless communication terminals experience increased power consumption during positioning processing due to the continuous enablement of amplifiers, which can lead to inefficiencies and potential inability to perform positioning tasks.
Innovation Solution
A wireless communication terminal with a control unit that manages power consumption based on control information received from a base station, controlling the operation of an amplifier and positioning processing units to optimize power usage, utilizing multiple communication methods like GNSS, LPWA, WiFi, Bluetooth, and cellular communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the amplifier is always enabled during positioning processing to ensure positioning capability, then positioning reliability is improved, but power consumption increases
Solution Approach 1:
The amplifier's operational state is dynamically adjusted based on real-time positioning requirements. The base station determines whether positioning is necessary and sends control information to the terminal, which then activates or deactivates the amplifier accordingly, transforming the static amplifier into a dynamically controllable component that adapts to changing positioning needs
Solution Approach 2:
A feedback mechanism is established where the terminal reports positioning capability and status to the base station, and the base station responds with control information regarding amplifier operation. This closed-loop feedback system enables the amplifier to be enabled only when positioning is actually required, rather than remaining continuously active
2Reliability
If the amplifier is enabled after positioning cannot be performed to maintain positioning capability, then positioning availability is improved, but power consumption for coping with positioning failure increases
Solution Approach 1:
The base station performs preliminary assessment of positioning requirements before the terminal activates the amplifier. By determining in advance whether positioning is needed and sending control information accordingly, the system avoids unnecessary amplifier activation and the associated power consumption that would occur if the amplifier were enabled as a backup measure
3Use of energy by moving object
If the terminal autonomously determines amplifier control to reduce power consumption, then power consumption control capability is improved, but device complexity increases
Solution Approach 1:
The complex control decision-making function is extracted from the terminal and relocated to the base station. The base station performs the sophisticated judgment of whether positioning is required and generates control information, while the terminal simply executes the control instructions, thereby reducing the terminal's device complexity while maintaining effective power consumption control
Data Source
AI summary
To reduce power consumption of a wireless communication terminal at the time of positioning processing. A wireless communication terminal includes: a wireless communication unit that performs wireless communication; a positioning processing unit that performs positioning processing on the basis of reception data received via the wireless communication unit; and a control unit that controls power consumption related to the positioning processing on the basis of control information regarding the positioning processing acquired via the wireless communication unit. The wireless communication terminal further includes an amplifier that amplifies a signal received via an antenna, in which the wireless communication unit transmits position information obtained by the positioning processing unit, and the control unit controls an operation of the amplifier on the basis of control information regarding the positioning processing obtained via the wireless communication unit.