Network Node Simulation for Separate REC and RE Testing
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Solution Overview
Problem
Existing network node testing is inefficient and difficult due to the need for integrated testing of REC and RE, which can involve different development teams and complicate fault identification.
Innovation Solution
Implementing separate simulators for REC and RE, with REC simulators performing demodulation and decoding operations, and RE simulators generating IQ-data and SNIR measurements, enabling individual testing and conformance/compliance testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If integrated testing of REC and RE is performed, then comprehensive system validation is achieved, but testing complexity and difficulty increase
Solution Approach 1:
The testing system is segmented into separate REC simulator and RE simulator components. The REC simulator handles demodulation and decoding operations independently, while the RE simulator generates IQ-data and SNIR measurements independently. This segmentation allows each component to be tested separately, reducing overall testing complexity while maintaining comprehensive system validation capability.
Solution Approach 2:
The patent introduces simulated signal interfaces as intermediaries between the REC simulator and RE simulator. These intermediaries transmit standardized signal representations that enable independent testing of each component while still allowing integrated system validation when the components interact through the defined interfaces.
2Difficulty of detecting and measuring
If separate testing of REC and RE is implemented, then fault identification improves, but testing integration becomes more difficult
Solution Approach 1:
By dividing the testing system into separate REC and RE simulators with distinct functional responsibilities, faults can be isolated to specific components. The REC simulator processes demodulation and decoding while the RE simulator handles signal generation, making it easier to identify where issues originate without the confusion of integrated testing.
Solution Approach 2:
The simulators are designed with universal interfaces that can operate in both separate and integrated modes. The same REC simulator can test REC components independently or integrate with the RE simulator for comprehensive system testing, providing flexibility that reduces integration difficulty despite the benefits of separate testing.
3Productivity
If demodulation and decoding operations are simulated separately, then testing efficiency increases, but system interoperability verification becomes more complex
Solution Approach 1:
The testing process is segmented into distinct demodulation simulation and decoding simulation stages, each handled by specialized components within the REC simulator. This allows efficient parallel processing and independent optimization of each operation while maintaining the ability to verify complete signal processing chains for interoperability.
Data Source
AI summary
In an example, a method of simulating a first network node is provided. The method includes receiving information representing signals from a second network node, wherein the information representing signals includes information representing signals received by the second network node from one or more User Equipments (UEs), simulating a demodulation operation on the information representing signals to obtain information representing demodulated signals, and simulating a decoding operation on the information representing demodulated signals to obtain decoded data.