Rohde & Schwarz has patented a system for digital radio interference mitigation, enhancing satellite ground station reception. The system integrates interfaces for digital signals from satellite and radio transceivers, utilizing a processing unit to reduce interference, particularly in C-band frequencies alongside 5G services. GlobalData’s report on Rohde & Schwarz 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 Rohde & Schwarz, Wireless network optimization was a key innovation area identified from patents. Rohde & Schwarz's grant share as of June 2024 was 56%. Grant share is based on the ratio of number of grants to total number of patents.

Digital radio interference mitigation system and method

Source: United States Patent and Trademark Office (USPTO). Credit: Rohde & Schwarz GmbH & Co KG

The granted patent US12047159B2 presents a system designed for digital radio interference mitigation, which is particularly relevant in the context of satellite communications and radio networks. The system comprises two interfaces: one for receiving a digital signal from a satellite ground station and another for acquiring a digital signal from a radio network transceiver. This second signal may include downlink (DL) or uplink (UL) baseband signals. A signal processing unit is integrated to address and mitigate radio interference present in the second digital signal as it relates to the first digital signal. Additionally, a radio probe is included, which can demodulate the second digital signal from radio signals within proximity to the transceiver.

The claims further detail the nature of the digital signals involved, specifying that the first signal may be a demodulated DL baseband signal or a digital In-phase/Quadrature (I/Q) signal over Internet Protocol (IP). The second digital signal can also be an I/Q signal and may contain information about the beam direction and channel state between the transceiver and the satellite ground station. The signal processing unit employs adaptive filtering techniques, utilizing algorithms such as least mean squares (LMS) and machine learning methods, including supervised training of artificial neural networks, to enhance interference mitigation. The patent also notes that the radio network transceiver operates on frequencies allocated for fixed satellite services (FSS), indicating its application in regulated communication environments.

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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.