Signal-Strength Compensating Unit for Temperature Compensation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing signal-strength compensation methods for wireless communication require complex hardware and direct temperature measurement, which increases costs and complexity, and fail to accurately account for temperature effects on both the receiving and transmitting ends.
Innovation Solution
A signal-strength compensating unit that determines temperature-compensated received-signal-strength indication values by using operation condition data, such as operational states, environment conditions, and layout data, to estimate temperature effects without the need for external temperature sensors, implemented in hardware or software forms like ASICs or programmable processors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If direct temperature measurement with external temperature sensors is used, then temperature compensation accuracy is improved, but hardware complexity and cost increase
Solution Approach 1:
The wireless communication device uses its own internal operational status data (transmit power, modulation scheme, channel conditions) to infer and compensate for temperature effects on RSSI measurements. This self-service approach eliminates the need for external temperature sensors while achieving accurate temperature compensation through software-based processing of readily available operational parameters.
Solution Approach 2:
The patent introduces operational status data as an intermediary between the physical temperature condition and the RSSI measurement. Instead of directly measuring temperature, the system uses operational parameters (transmit power, modulation scheme, channel quality indicator) as intermediate variables that reflect temperature effects, enabling indirect but accurate temperature compensation without direct thermal measurement.
2Reliability
If multiple temperature sensors and direct temperature measurement are implemented, then temperature monitoring reliability is improved, but device complexity and cost increase
Solution Approach 1:
The system monitors temperature-related effects on RSSI measurements by analyzing its own operational status data, eliminating the need for separate temperature monitoring hardware. The wireless communication device serves itself by using internal parameters (transmit power, modulation scheme, channel conditions) to detect and compensate for temperature variations, achieving reliable temperature monitoring without additional sensors or complex monitoring circuits.
Solution Approach 2:
The operational status data collection mechanism serves multiple functions simultaneously: it characterizes the transmission environment, enables temperature compensation, and provides basis for adaptive modulation and power control. This multi-functionality allows the system to achieve reliable temperature monitoring using data already collected for other communication optimizations, avoiding dedicated temperature sensing hardware.
3Device complexity
If existing RSSI measurement methods are used without temperature compensation, then device complexity is reduced, but measurement precision deteriorates due to temperature effects
Solution Approach 1:
The patent replaces physical temperature sensing mechanisms with software-based processing of operational status data. Instead of using hardware temperature sensors and thermal measurement circuits, the system substitutes a computational approach that uses transmit power, modulation scheme, and channel conditions to calculate temperature compensation factors, thereby maintaining simple hardware while achieving precise RSSI measurements.
Solution Approach 2:
The system dynamically adjusts RSSI measurement interpretation by changing parameters based on operational status. The compensation factor is derived from variations in transmit power, modulation scheme, and channel quality indicator, allowing the system to adapt RSSI precision to current operating conditions without adding hardware complexity. This parameter-based adaptation maintains measurement precision across different temperature conditions.
Data Source
AI summary
The invention is directed to a signal-strength compensating unit (100) for providing a temperature-compensated received-signal-strength indication value of a wireless signal (W) received by an external wireless receiver from an external wireless transmitter (106). It comprises a status determination unit (108) configured to ascertain operation condition data indicative of at least one current condition suitable for affecting a respective temperature of a wireless-signal reception unit (105) of the external wireless receiver or of a wireless-signal transmission unit (107) of the external wireless transmitter and a compensation-parameter determination unit (110) configured to determine and provide a signal-strength compensation parameter associated to one or more conditions suitable for affecting the respective temperature of the wireless-signal reception unit or of the wireless-signal transmission unit, and to determine a temperature-compensated received signal-strength indication value based thereon, without having to directly determine a temperature value.