Slave Communication Apparatus Dynamic Preamble Bit Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current cordless telephone systems using the TDMA scheme experience increased current consumption during the master apparatus detection process due to interruptions caused by error detection of incorrect control data, leading to prolonged detection times and higher power usage.
Innovation Solution
The communication apparatus dynamically adjusts the number of bits in the signal pattern used for master apparatus detection based on error detection frequency, increasing bits when errors occur frequently and decreasing when errors are rare, to reduce the probability of incorrect detection and lower power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the slave apparatus uses a fixed-length signal pattern for master apparatus detection, then the detection process is simple to implement, but current consumption increases due to frequent error detections and process interruptions
Solution Approach 1:
The patent implements dynamic adjustment of the signal pattern length during the master apparatus detection process. The slave apparatus starts with a predetermined pattern length and modifies it based on error detection results, transitioning from a static to a dynamic detection approach. This reduces current consumption by adapting the detection strategy to actual channel conditions rather than using a fixed pattern length throughout the process.
Solution Approach 2:
The patent employs feedback mechanisms where the slave apparatus monitors error detections during the detection process and uses this information to adjust the signal pattern length. The controller modifies the pattern length based on whether errors are detected, creating a closed-loop system that optimizes detection efficiency and reduces power consumption through iterative improvement.
2Reliability
If the slave apparatus increases the signal pattern length to reduce error detections, then detection accuracy improves, but detection time increases and current consumption rises
Solution Approach 1:
The patent dynamically adjusts the signal pattern length based on real-time error detection feedback rather than using a consistently long pattern. The slave apparatus starts with a predetermined pattern length and only increases it when errors are detected, then returns to the original length after successful detection. This dynamic approach maintains high detection accuracy when needed while minimizing detection time during normal operation.
Solution Approach 2:
The patent changes the parameter of signal pattern length adaptively during the detection process. The controller modifies this parameter based on error detection outcomes, increasing the pattern length to improve reliability when errors occur, then restoring it to reduce detection time when the master apparatus is successfully identified. This parameter adaptation resolves the trade-off between accuracy and time.
3Measurement precision
If the slave apparatus uses a longer signal pattern for detection, then the probability of incorrect detection decreases, but the detection process takes longer and consumes more power
Solution Approach 1:
The patent implements a dynamic detection strategy where the signal pattern length is adjusted based on error detection feedback. The slave apparatus uses a predetermined pattern length initially and only extends it when errors are detected, then returns to the shorter length upon successful detection. This dynamic adaptation achieves high detection precision when necessary while minimizing power consumption during the overall detection process.
Solution Approach 2:
The patent adapts the signal pattern length parameter response to error detection conditions. The controller increases the pattern length to improve measurement precision when errors occur, then restores it to the predetermined length to reduce power consumption. This parameter modulation allows the system to achieve high detection precision selectively rather than continuously, optimizing the balance between precision and energy use.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
To provide a communication apparatus or the like capable of reducing current consumption during a period of a master apparatus detection process. The communication apparatus is a communication apparatus operating as a slave apparatus. The communication apparatus includes a radio unit 210 that communicates a signal with another communication apparatus, a master apparatus detection unit 220 that performs a master apparatus detection process of detecting a master apparatus 10 using at least a UW pattern included in the signal received by the radio unit 210, and a control unit 230 that controls the number of bits of a preamble pattern used for the master apparatus detection process together with the UW pattern in the preamble pattern existing before the UW pattern based on the result of the master apparatus detection process performed by the master apparatus detection unit 220.