RRU Temperature Detection Dynamic Power Control
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Solution Overview
Problem
Radio Remote Units (RRUs) in broadband mobile communication systems face damage due to excessively high temperatures, leading to ineffective components and network outages, as existing temperature monitoring methods only trigger alarms without further protective actions.
Innovation Solution
A method and device that acquire temperature data from RRU sensors, configure power settings, and close radio frequency channels when temperatures exceed thresholds, using hierarchical temperature limits to prevent damage by adjusting power levels and channel status accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only over-temperature alarm is implemented without further processing operations, then the system complexity is low, but the reliability of the RRU components deteriorates due to excessive temperature
Solution Approach 1:
The patent implements dynamic temperature control by adjusting power data based on real-time temperature monitoring. When temperature exceeds thresholds, the system dynamically reduces power data to lower heat generation, and when temperature is acceptable, it restores power data to initial values. This dynamic adjustment mechanism resolves the contradiction by making the control system adaptive rather than static.
Solution Approach 2:
The patent establishes a feedback loop where temperature sensors continuously monitor RRU temperature, compare it against thresholds, and trigger appropriate responses (power adjustment or radio frequency channel closing). This closed-loop feedback system ensures reliability by automatically responding to temperature conditions, resolving the contradiction between simplicity and reliability.
2Reliability
If power data is continuously adjusted to control temperature, then the reliability of RRU components is improved, but the energy consumption increases due to frequent power changes
Solution Approach 1:
The patent applies partial action by adjusting power data only to the extent necessary to bring temperature back within acceptable thresholds, rather than continuously reducing power to minimum levels. This selective adjustment maintains reliability while minimizing unnecessary energy consumption associated with excessive power changes.
Solution Approach 2:
The system implements periodic temperature monitoring and power adjustment based on threshold comparisons. Rather than continuous adjustment, the system checks temperature at intervals and makes discrete power adjustments only when thresholds are breached, reducing the energy overhead of constant control operations.
3Measurement precision
If hierarchical temperature limits are implemented with multiple thresholds, then the temperature control precision is improved, but the device complexity increases due to multiple limit levels
Solution Approach 1:
The patent segments the temperature control range into multiple hierarchical thresholds (first threshold, second threshold, third threshold) with corresponding different control actions. This segmentation allows precise temperature management by matching appropriate control intensity to the severity of temperature deviation, improving precision while keeping each individual control rule relatively simple.
Solution Approach 2:
Different control actions are applied to different temperature ranges: mild temperature excursions trigger power data adjustment, while severe excursions trigger radio frequency channel closing. This local quality approach ensures that control measures are appropriately matched to the specific temperature condition, improving overall control precision without uniformly increasing complexity across all operating conditions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively controls temperature ranges within RRU systems, preventing component damage and maintaining network functionality by dynamically adjusting power and channel status based on temperature data, ensuring the RRU operates within safe temperature limits.
Implementation Method 1
a temperature threshold is set up. When the temperature in the shell monitored by a temperature sensor in the RRU is higher than the temperature threshold
Data Source
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AI summary
The present application provides a method and device for detecting temperature of a radio remote unit, to solve the problem that an RRU could be damaged due to an excessively high temperature. The method includes: acquiring temperature data of a radio remote unit; configuring power data of the radio remote unit according to the temperature data, when the temperature data is less than a temperature threshold or within the temperature threshold; and closing radio frequency channel(s) of the radio remote unit when the temperature data is more than the temperature threshold.