Dynamic Attenuation Control for 5G Wireless Circuit Protection
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Solution Overview
Problem
In wireless communications apparatuses, the high signal levels from 5G wireless circuits can influence other circuits, leading to deterioration in reception characteristics and potential breakdowns, with existing attenuation techniques uniformly reducing reception signal levels without preventing these issues.
Innovation Solution
A wireless communications apparatus with a controller that directs transmission signals to pass through an attenuator only when a predetermined signal condition is met, specifically when the signal level exceeds a threshold and the frequency is within a certain range, thereby minimizing influence on reception characteristics while protecting the circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If attenuation control is always executed to protect receiver circuits, then reliability is improved, but reception characteristics deteriorate
Solution Approach 1:
The patent applies dynamics by making the attenuation control adjustable rather than fixed. The controller dynamically changes the attenuation amount based on the detected signal level of transmission signals. When transmission signals are present at high levels, attenuation is applied; when absent or at normal levels, attenuation is reduced or removed. This dynamic adjustment resolves the contradiction by adapting the protection level to actual operating conditions.
Solution Approach 2:
The patent changes the attenuation parameter based on signal level conditions. The controller detects the signal level of transmission signals and adjusts the attenuation amount accordingly. This parameter change allows the system to maintain high reliability when needed while preserving reception characteristics when transmission signals are not present, thus resolving the technical contradiction.
2Productivity
If high signal levels are transmitted to maintain communication quality, then productivity is improved, but harmful influence on other circuits increases
Solution Approach 1:
The patent introduces an intermediary element - the attenuator - positioned between the transmission signal path and the receiver circuit. This attenuator acts as a mediator that reduces the harmful impact of high-level transmission signals on other wireless circuits while allowing the transmission to proceed. The controller manages this intermediary to provide protection only when necessary, thus maintaining communication quality while reducing harmful effects.
3Reliability
If signal level is increased to prevent breakdown, then reliability is improved, but reception characteristics are degraded
Solution Approach 1:
The patent implements periodic monitoring and adjustment of attenuation based on transmission signal presence. The controller periodically detects whether transmission signals are present and adjusts the attenuation amount accordingly. This periodic action ensures protection from breakdown when transmission signals are present while maintaining optimal reception characteristics when they are absent, resolving the contradiction between reliability and reception quality.
Data Source
AI summary
A wireless communications apparatus includes wireless circuits configured to transmit and receive signals. One of the wireless circuits is a first circuit for a fifth-generation mobile communications system. One of the wireless circuits that is different from the first circuit is a second circuit that is likely to be influenced by a transmission signal to be transmitted from the first circuit. The second circuit includes an attenuator configured to attenuate a reception signal received by the second circuit. The wireless communications apparatus includes a controller configured to (i) execute attenuation control to direct the transmission signal to pass through the attenuator if a predetermined signal condition is satisfied, and (ii) keep from executing the attenuation control if the predetermined signal condition is not satisfied, the predetermined signal condition being satisfied if the second circuit is highly likely to be influenced by the transmission signal received as the reception signal.