Spirent Communications has filed a patent for a method that allows for the reproduction of wireless signal field conditions experienced by a client device in a field environment. The method involves retrieving recorded RSSI data for different wireless channels and generating test signals in a controlled test environment using programmable attenuators. This enables the replication of path-loss measurements and configuration of a Wi-Fi mesh network. GlobalData’s report on Spirent Communications gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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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 September 2023 was 68%. Grant share is based on the ratio of number of grants to total number of patents.
Replaying wireless signal field conditions for client devices
A recently filed patent (Publication Number: US20230283387A1) describes a computer-implemented method for replaying wireless signal field conditions experienced by a client device moving through a field environment. The method involves retrieving RSSI data recorded in the field environment for different wireless channels between the client device, root AP, and extender AP. Test signals are then generated and transmitted among test instances of these devices in a controlled test environment, with signal strengths based on the recorded RSSI data. The test instances are positioned in separate isolated chambers, and signal strengths are attenuated using control signals sent to corresponding attenuators.
The patent also extends the method to a field environment with an additional extender AP. In this case, further RSSI data is retrieved for additional wireless channels between the additional extender AP and each of the client device, root AP, and extender AP. Test signals are transmitted between the additional extender AP and the other devices in the test environment, with signal strengths based on the additional RSSI data.
The method aims to reproduce the wireless signal field conditions experienced by the client device as it moves through the field environment. By using recorded RSSI data and controlling the signal strengths of the test signals, the method simulates the effective distances between the client device and the root AP, the extender AP, and the additional extender AP.
The patent also includes variations of the method, such as recording measurements of the RSSI data in the field environment by repeatedly measuring from a stationary field client device or by moving a field client device along a path or radii. These variations simulate variations over time in signal strength at different distances and during travel along specific paths.
Overall, the patent describes a computer-implemented method and a non-transitory computer program product that allow for the accurate replay of wireless signal field conditions in a controlled test environment. The method can be extended to include additional devices and channels, and variations of the method enable the simulation of different scenarios and signal strength variations.
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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.
