Transmission Cable Loss Measurement Using Fixed Target Power
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Solution Overview
Problem
Wireless communication systems face challenges in accurately determining cable loss in transmission cables due to varying transmission powers and power constraints, leading to sub-optimal signal transmission and increased resource wastage.
Innovation Solution
A method where a radio modem is requested to use a target power when sending signals to a signal compensator device, allowing for accurate measurement of cable loss by ensuring a fixed transmission power, thereby reducing the need for retransmissions and conserving resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the radio modem uses varying transmission power due to power constraints, then the system adapts to different operating conditions, but the cable loss measurement accuracy deteriorates
Solution Approach 1:
The system performs cable loss measurement before actual data transmission. By conducting the measurement in advance when the cable loss is stable and known, the system establishes a baseline that remains valid even when transmission power varies later due to power constraints during operation.
Solution Approach 2:
The system dynamically adjusts transmission power based on power constraints while maintaining accurate cable loss compensation. The cable loss measurement is performed once to establish a stable reference, then the system adapts transmission power dynamically without needing to re-measure, resolving the conflict between adaptability and measurement accuracy.
2Measurement precision
If the system performs frequent cable loss measurements to maintain accuracy, then measurement precision improves, but resource consumption and time increase
Solution Approach 1:
The cable loss measurement is performed once in advance before data transmission begins. This preliminary measurement captures the cable loss characteristics that remain stable throughout operation, eliminating the need for repeated measurements and reducing time consumption while maintaining accuracy.
Solution Approach 2:
The system creates a stable reference model of cable loss through an initial measurement. This reference is then reused for compensation during data transmission, avoiding the need to repeatedly measure the same stable physical characteristic and thus saving time and resources.
3Reliability
If the system uses high transmission power to overcome cable loss, then signal reception quality improves, but energy consumption increases
Solution Approach 1:
The system uses cable loss measurement results as feedback to optimize transmission power. By knowing the exact cable loss, the system can compensate for it and determine the minimum necessary transmission power to achieve reliable signal reception, avoiding excessive energy consumption while maintaining reception quality.
Solution Approach 2:
The system changes transmission power parameters based on measured cable loss characteristics. Instead of using fixed high power, the system adjusts transmission power to match the actual cable loss conditions, achieving reliable reception with optimized energy consumption by matching parameters to actual system state.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for determining a cable loss associated with a transmission cable of an apparatus. An example method includes sending, to a radio modem of the apparatus, a request for the radio modem to use a target power when sending one or more signals to the signal compensator device for determining a cable loss associated with a transmission cable communicatively coupling the radio modem with the signal compensator device, receiving, at a signal compensator device of the apparatus, the one or more signals from the radio modem sent using the target power, and determining the cable loss associated with the transmission cable based on the one or more signals.