Signal Generator Memory Segments for Base Station Testing
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Solution Overview
Problem
Existing signal generators used for testing base stations in digital mobile radio systems have limited accuracy, leading to errors in evaluating the quality of radio frequency signals, which can misrepresent the actual performance of the base station.
Innovation Solution
A signal generator with a signal generation section and a control section that can select between redundant data sets stored in memory segments, allowing for accurate generation and transmission of high-frequency signals based on control signals received from the base station, ensuring correct data transmission evaluation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a communication tester is used to test the base station, then the base station can be evaluated, but the limited accuracy of the tester's radio frequency signals leads to errors in signal evaluation that do not reflect the actual performance of the base station
Solution Approach 1:
The patent applies preliminary action by pre-generating multiple redundant data sets (first data set, second data set, etc.) and storing them in memory segments before the actual transmission. These data sets are prepared in advance with different redundancy levels, allowing the system to select the most appropriate data set based on transmission conditions, thereby ensuring high measurement precision and reliable performance assessment from the outset.
Solution Approach 2:
The patent implements parameter changes by varying the redundancy parameters of different data sets. The first data set has a first redundancy parameter, the second data set has a second redundancy parameter, and so on. By changing these redundancy parameters and selecting different data sets based on transmission quality requirements, the system achieves both high signal evaluation accuracy and reliable base station performance assessment.
2Measurement precision
If redundant data sets are stored in multiple memory segments, then signal transmission accuracy is improved, but the device complexity increases due to multiple memory segments and selection control
Solution Approach 1:
The patent applies segmentation by dividing the memory into multiple independent memory segments, with each segment storing a specific data set (first data set in first memory segment, second data set in second memory segment, etc.). This segmentation allows for organized storage of redundant data with different parameters, improving signal transmission accuracy while keeping the memory structure manageable through clear division of functions.
Solution Approach 2:
The patent implements universality by designing a control section that can universally access and select from any of the multiple memory segments based on transmission requirements. The control section reads control signals and selectively accesses different memory segments to retrieve appropriate data sets, making the system multi-functional and adaptable to various transmission conditions without proportionally increasing complexity.
Data Source
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AI summary
The invention relates to a signal generator and a method for testing mobile communication base stations. The signal generator (11) comprises a signal generation section and an associated control section (12). A memory (17) includes at least a first memory segment (17.i) and a second memory segment (17.i), wherein a first data record is stored in the first memory segment (17.i) and a second data record is stored in the second memory segment (17.i).A control terminal (16), to which a first control signal or a second control signal is applied, can be read into the control section (12) at a definable time interval (tSMU) after a previous output of a high-frequency signal section generated on the basis of one of the data sets, wherein the control section (12) is configured such that when the first control signal is read in for the generation and output of a subsequent high-frequency signal section, a data set different from the data set underlying the generation and output of the preceding high-frequency signal section is selected from the memory segments (17.i), and that when the second control signal is read in, a specific data set is selected.