Real-time Channel Parameter Calculator for Dynamic Simulation
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Solution Overview
Problem
Current radio channel simulators face limitations in dynamic simulation capabilities, as statically defined channel parameters lead to abrupt jumps in timing or phase, restrict the amount of simulation that can be performed, and fail to test the dynamic response of systems to varying channel conditions.
Innovation Solution
A system that uses a postulated physical environment model to continuously generate communication channel parameters over time, avoiding abrupt changes and enabling real-time simulation of communication signals through a channel simulator, allowing for interactive and time-varying scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If statically defined channel parameters are used, then the simulation setup is simple, but abrupt jumps in timing or phase occur and dynamic response cannot be tested
Solution Approach 1:
The patent implements dynamic channel parameters that continuously vary over time based on a postulated physical environment model, replacing static parameter definitions. This allows the simulation to adapt to changing conditions while maintaining continuity through controlled transitions, resolving the contradiction between operational simplicity and simulation reliability.
Solution Approach 2:
The system continuously modifies channel parameters (delay, Doppler shift, attenuation) based on the physical environment model, enabling smooth transitions between different channel states. This parameter change approach eliminates abrupt jumps while maintaining simulation simplicity through automated generation.
2Device complexity
If statically defined channel parameters are used, then the simulation configuration is fixed, but the amount of simulation that can be performed is limited
Solution Approach 1:
The system pre-defines a postulated physical environment model that automatically generates channel parameters over time, eliminating the need for manual configuration of multiple static scenarios. This preliminary setup enables unlimited simulation capacity while keeping the initial configuration simple.
Solution Approach 2:
The physical environment model serves as a universal generator for all channel parameters across different simulation scenarios, replacing the need for multiple separate static configurations. This multi-functional approach increases simulation capacity without proportionally increasing configuration complexity.
3Adaptability or versatility
If manually entered channel parameters are used, then flexibility is achieved, but time consuming generation and entry is required
Solution Approach 1:
The system automatically generates channel parameters from the physical environment model without requiring manual entry. The model self-services by computing appropriate parameters based on the defined environment, maintaining flexibility while eliminating time-consuming manual input.
Solution Approach 2:
The patent replaces the manual mechanical process of entering parameters with an automated computational system that generates parameters algorithmically from the physical environment model, significantly reducing time investment while preserving flexibility.
4Use of energy by moving object
If statically defined channel parameters are used, then computational resources are saved, but interactive simulation cannot be performed
Solution Approach 1:
The system uses periodic updates of channel parameters based on the physical environment model, providing interactive simulation capability at manageable computational intervals. This periodic refresh enables interactivity while controlling resource consumption through efficient update cycles.
Data Source
AI summary
One embodiment illustrated herein includes a system for simulating communications in an environment. The system includes a postulated physical environment model, having modeled terrain and continuous changes over time. A channel parameter calculator is coupled to the postulated physical environment model, and configured to obtain samples from the postulated physical environment model, each sample comprising information about modeled terrain at a given time. The channel parameter calculator is further configured to, from the obtained samples, generate communication channel parameters, over time. A channel simulator is coupled to the channel parameter calculator. The channel simulator is configured to be coupled to signal source and to, using the communication channel parameters, apply the communication channel parameters to a communication signal from the signal source to simulate transmission of data through a simulated channel over time.