Digital Mobile Radio Transceiver Signal Detection Power Management
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Solution Overview
Problem
Legacy digital mobile radio (DMR) systems consume excessive power during wake periods in idle states due to the active mode requirement of both the radio frequency (RF) transceiver and baseband integrated circuit (BBIC), which reduces battery life.
Innovation Solution
An enhanced transceiver system that allows the BBIC to remain in a sleep mode during wake periods by using a microcontroller unit (MCU) to detect signals, reducing power consumption and extending battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the BBIC is kept in active mode during wake periods to detect signals, then signal detection reliability is improved, but power consumption increases
Solution Approach 1:
The patent segments the signal detection function into two parts: a simplified detection function implemented in the MCU that operates in low-power mode, and the full baseband processing function in the BBIC that remains in sleep mode. This segmentation allows critical signal detection to occur with minimal power consumption while preserving the ability to fully process signals when needed.
Solution Approach 2:
The patent introduces an intermediary detection mechanism where the MCU performs initial signal detection before activating the BBIC. This intermediary step acts as a filter, preventing the high-power BBIC from activating unnecessarily while still maintaining reliable detection of actual signals through the lower-power MCU.
2Use of energy by moving object
If the BBIC is placed in sleep mode during wake periods, then power consumption is reduced, but signal detection capability is weakened
Solution Approach 1:
The detection capability is segmented into two levels: a basic detection level handled by the MCU in sleep mode for power efficiency, and an advanced processing level handled by the BBIC when fully activated. This segmentation ensures that while the BBIC sleeps, the system retains sufficient detection capability through the MCU to identify signals that require further processing.
Solution Approach 2:
The patent applies preliminary action by having the MCU perform initial signal detection and evaluation before the BBIC activates. This preliminary detection filters out noise and non-critical signals, ensuring that the BBIC only activates when there is an actual signal worth processing, thus maintaining detection capability while reducing unnecessary power consumption.
3Measurement precision
If wake periods are extended to improve signal detection, then detection accuracy is improved, but battery life is reduced
Solution Approach 1:
The patent segments the detection process into an initial quick assessment phase by the MCU and a detailed processing phase by the BBIC. This allows the system to maintain reasonable detection accuracy through the MCU's initial evaluation without requiring the BBIC to remain active for extended periods, thus preserving battery life while maintaining adequate detection precision.
Solution Approach 2:
The patent applies partial action by having the MCU perform only the essential detection functions needed to identify potential signals, rather than implementing the full detection and processing capability of the BBIC during wake periods. This partial detection approach maintains sufficient accuracy for battery life management while reserving full processing power for when signals are actually detected.
Data Source
AI summary
Apparatuses and methods related to digital mobile radio (DMR) with enhanced transceiver are disclosed herein. The transceiver detects waveforms of signals received by a digital mobile station radio (MS). By detecting whether the waveforms of the signals, the transceiver allows a digital baseband processor of the MS to remain in a sleep state while the signals are being detected by the DMR, thereby reducing an amount of power used while the signals are being detected.