Emulated Virtual Clients for WLAN Service Validation
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Solution Overview
Problem
Current methods for testing wireless local area networks (WLAN) face challenges in simulating realistic communication between a large number of access points and mobile devices, making it difficult to ensure proper functioning and system performance, especially due to the cost and logistical issues of using physical instances.
Innovation Solution
The implementation of a radio-frequency abstraction layer (RFAL) in electronic devices allows for the simulation of wireless communication protocols within a software framework, enabling the emulation of client functionality and encapsulation of frames compatible with WLAN protocols into wired communication protocols, facilitating realistic and efficient testing without the need for physical radio-frequency communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical instances of access points and mobile devices are used for testing, then realistic testing of WLAN systems can be achieved, but the cost and logistics become prohibitive
Solution Approach 1:
The patent creates virtual copies of physical devices through virtualization. Virtual access points and virtual mobile devices are instantiated as software entities that replicate the behavior and communication protocols of their physical counterparts. This allows realistic WLAN testing without requiring large numbers of physical devices, directly resolving the contradiction between testing realism and device quantity.
Solution Approach 2:
The patent replaces the mechanical/physical system of actual radio frequency communication between physical devices with a software-based simulation system. The virtualization platform substitutes physical RF hardware with virtualized network functions that emulate wireless communication behavior, eliminating the need for numerous physical devices while maintaining testing fidelity.
2Quantity of substance
If AP simulators are used to generate traffic, then the number of physical devices can be reduced, but it becomes very difficult to build realistic simulations of protocols and behaviors
Solution Approach 1:
The patent implements a universal virtualization platform that can instantiate multiple types of virtual devices (access points, mobile devices, sensors) with diverse protocols and behaviors from a single system architecture. This multi-functional platform eliminates the need for separate AP simulators while providing realistic simulations of various device types and their protocols through standardized virtualization mechanisms.
Solution Approach 2:
The patent creates accurate virtual copies of real devices by capturing and replicating their protocol implementations and behavioral characteristics in software. These virtual instances faithfully reproduce the communication patterns, state machines, and protocol stacks of physical devices, enabling realistic testing without requiring physical hardware or complex custom simulators.
3Measurement precision
If tens of thousands of physical access points and hundreds of thousands of mobile devices are used for testing, then comprehensive WLAN controller performance can be evaluated, but the cost and logistics become prohibitive
Solution Approach 1:
The patent creates virtual instances of access points and mobile devices that can be instantiated in large numbers within the virtualization platform. These virtual copies enable comprehensive performance evaluation of WLAN controllers by simulating thousands of concurrent connections and diverse traffic patterns without requiring corresponding numbers of physical devices, thus maintaining measurement precision while reducing device quantity.
Solution Approach 2:
The patent transitions from physical space to virtual space, adding the dimension of software-based instantiation. This allows the system to scale to thousands of virtual devices on standard hardware infrastructure, eliminating the physical constraints that would make deploying tens of thousands of actual devices prohibitively expensive and logistically complex while maintaining performance evaluation accuracy.
Data Source
AI summary
During operation, an electronic device may emulate client functionality associated with a virtual client in a wireless network, where emulating the client functionality includes generating a first frame that is compatible with a wireless communication protocol and is associated with fictious wireless communication with the virtual client. Then, the electronic device may provide, to a computer, a second frame that includes at least a portion of the first frame, where the second frame is compatible with a wired communication protocol. Next, the electronic device may receive, from the computer, a response message based at least in part on the first frame, where the response message includes information associated with a service provided by the computer. Moreover, the electronic device may assess the service based at least in part on the information and may selectively perform the remedial action based at least in part on the assessment.