Space Exploration Technologies has been granted a patent for a configurable modem that generates RF signals using OFDM protocol for satellite communication. The modem can transmit signals between user terminals, satellites, and gateways, with unique features like burst detection data and pilot data. GlobalData’s report on Space Exploration Technologies 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 Space Exploration Technologies, V2V communication antennas was a key innovation area identified from patents. Space Exploration Technologies's grant share as of May 2024 was 28%. Grant share is based on the ratio of number of grants to total number of patents.
Modem for satellite communication with unique waveform transmission
A recently granted patent (Publication Number: US12003350B1) discloses a modem designed to transmit a waveform from a user terminal (UT) to a satellite (SAT) using a unique set of features. The modem includes components such as a transmitter on the UT, a resource block comprising user data, and a DC null, all configured within specific time periods of a burst in a radio frame. The transmission waveform is modulated using an orthogonal frequency division multiplexed (OFDM) symbol, incorporating pilot subcarriers, channel estimation symbols, and pilot sub-band offsets. Additionally, the modem performs pre-compensation related to carrier frequency offset (CFO) and sampling frequency offset (SFO), along with crest factor reduction and digital pre-distortion for signal quality optimization.
Furthermore, the patent details a method executed by the UT for generating the transmission waveform, emphasizing the insertion of a unique word, channel estimation symbol, pilot subcarriers, and sub-band offsets within specific time periods of the burst. The method also involves pre-compensation for CFO and SFO, crest factor reduction, and digital pre-distortion. The waveform is structured to be combined with transmissions from other UTs over an air interface, enabling efficient data transmission. The patent also highlights the use of pilot symbol processing for phase linear interpolation to correct delays, ensuring accurate channel estimation. Overall, the patented technology offers a comprehensive approach to waveform transmission from UTs to SATs, enhancing communication efficiency and signal quality in satellite communication systems.
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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.
