Spirent Communications has been granted a patent for a method that reproduces wireless signal conditions experienced by a client device in a field environment. The method involves using recorded signal strength data to generate test signals in isolated chambers, allowing for controlled path-loss measurements in both field and lab settings. GlobalData’s report on Spirent Communications gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Spirent Communications, Hybrid cloud mgmt was a key innovation area identified from patents. Spirent Communications's grant share as of July 2024 was 64%. Grant share is based on the ratio of number of grants to total number of patents.

Reproducing wireless signal conditions for testing in isolated environments

Source: United States Patent and Trademark Office (USPTO). Credit: Spirent Communications plc

The granted patent US12068794B2 outlines a computer-implemented method for replaying wireless signal field conditions experienced by a client device as it moves through an environment containing a root access point (AP) and an extender AP. The method involves retrieving received signal strength indicator (RSSI) data recorded during the client's movement, which includes data for various two-way wireless channels between the client device, the root AP, and the extender AP. The system generates and transmits test signals in a controlled test environment, utilizing isolated chambers and signal lines with attenuators to replicate the recorded signal strengths. This process allows for the simulation of wireless conditions based on real-world data, enhancing the accuracy of wireless network testing.

Additionally, the patent extends the method to include scenarios with an additional extender AP, allowing for further retrieval and transmission of RSSI data across multiple channels. The system is designed to simulate variations in signal strength over time, either by moving the client device along specific paths or radii from the APs. This capability is crucial for accurately modeling the wireless environment and understanding the effective distances between devices. The patent also encompasses a non-transitory computer program product that executes these methods, providing a comprehensive solution for testing and analyzing wireless signal conditions in various configurations.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.