Interference Cancellation Repeater Power Mode Control
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Solution Overview
Problem
Interference cancellation repeaters consume excessive power due to operational amplifiers even when there is no traffic, leading to inefficient power usage.
Innovation Solution
An interference cancellation repeater that includes a controller to monitor traffic levels and switch between normal and sleep modes, reducing power consumption by adjusting the power mode based on detected traffic, with features such as a traffic measurer, power controller, and modem communication for determining monitoring times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple amplifiers are used for interference cancellation and signal amplification, then interference cancellation capability and signal amplification are improved, but power consumption increases significantly
Solution Approach 1:
The patent applies dynamics by making the amplifier's operating state changeable between active and inactive modes. The controller dynamically switches the amplifier between these states based on traffic conditions, allowing the system to adapt its power consumption to actual signal processing needs while maintaining interference cancellation capability when required.
Solution Approach 2:
The patent implements periodic action through traffic monitoring at regular intervals. The controller periodically checks for signal presence and switches the amplifier between active and inactive states based on these periodic measurements, enabling the system to reduce power consumption during idle periods while remaining ready to process signals when traffic occurs.
2Speed
If amplifiers operate continuously to maintain readiness, then response speed to traffic is improved, but power consumption increases due to unnecessary operation
Solution Approach 1:
The patent applies preliminary action by maintaining the amplifier in an inactive state during periods of no traffic, and only activating it when traffic is detected. This allows the system to conserve power during idle periods while ensuring rapid response when signals are present, as the controller can quickly switch the amplifier from inactive to active state upon detecting traffic.
3Volume of moving object
If the repeater is miniaturized, then spatial restriction is reduced and installation flexibility is improved, but isolation between link antenna and service antenna becomes difficult to secure
Solution Approach 1:
The patent extracts and removes interference signals from the received signal using signal processing techniques. The interference cancellation unit identifies and removes interference components caused by antenna coupling, allowing the system to achieve adequate isolation between antennas even in a miniaturized configuration where physical separation is limited.
Data Source
AI summary
According to an aspect of the inventive concept, there is provided an interference cancellation repeater includes: a signal transceiver configured to cancel an interference signal from an RF input signal and to output an RF output signal from which the interference signal has been canceled; and a controller configured to control a power mode of the signal transceiver by measuring traffic of a first signal in the signal transceiver.