Mobile Receiver Performance Testing via Signal Extraction
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Solution Overview
Problem
Current methods for testing receiver performance in mobile communication units, particularly for unidirectional channels, are error-prone and time-consuming due to the need for statistical analysis and are complicated by competing processes and ambiguous reactions, making it difficult to directly analyze error rates and system performance.
Innovation Solution
A system and method that uses a testing device to simulate a base station, generating a transmission signal received by the mobile communication unit, which analyzes and backtransmits information via an independent channel, allowing direct comparison of original and received signals to assess receiver performance without interference from competing processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If statistical methods are used to analyze receiver performance by transmitting multiple signals, then measurement precision improves, but loss of time increases due to the large number of transmissions required
Solution Approach 1:
The patent extracts the analysis object from the complex reaction signals to the simple information signals. By analyzing only the information content (power settings, data volume) rather than entire signal sequences, the testing device achieves precise error rate measurement without requiring multiple statistical repetitions, thus reducing testing time while maintaining measurement precision
Solution Approach 2:
The patent introduces an intermediary approach by using the mobile communication unit's own transmitted signals as carriers of the analyzed information. Instead of directly measuring receiver performance through complex statistical analysis of multiple test signals, the system uses the unit's natural reaction signals (which contain the analyzed information) as mediators to indirectly measure receiver performance with high precision and low time cost
2Measurement precision
If the reaction of the mobile communication unit is analyzed to determine receiver performance, then measurement capability is achieved, but reliability decreases due to interference from competing processes and ambiguous reactions
Solution Approach 1:
The patent extracts the essential information content from the complex reaction signals. By focusing only on specific information elements (power settings, data volume parameters) within the unit's transmitted signals, the system eliminates interference from competing processes and ambiguous reactions, achieving reliable and unambiguous receiver performance measurement
Solution Approach 2:
The patent uses a copying approach where the information analyzed from received signals is essentially copied back into the transmitted signals. This creates a direct correspondence between the analyzed information and the observable reaction, eliminating ambiguity and ensuring reliable measurement of receiver performance without interference from other processes
Data Source
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AI summary
The invention regards a system, a mobile communication unit (3) and a method for analysing a receiver (8) performance of a mobile communication unit (3). An information is generated in a system simulator (4) and is transmitted in a transmission signal from a testing device (2) to a mobile communication unit (3) under test. The transmission signal is transmitted from the testing device (2) to the mobile communication unit (3) under test via a unidirectional channel (6, 7). The transmission signal is received and analyzed by the receiver (8) the performance of which is to be tested. By analyzing the received transmission signal the information included in the transmission signal is being obtained. The information obtained from the analysis of the transmission signal is transmitted back from the mobile communication unit (3) under test in a backtransmission signal via an independent backtransmission channel (14). The backtransmission signal received by the testing device (2) is analysed by the testing device (2) for obtaining the information included in the backtransmission signal and the result is compared to the information originally generated.