WAVEFORM-TRIGGERED RECEPTION AND BUFFERING FOR MILLIMETER-WAVE SOFTWARE-DEFINED RADIOS
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United States of America Patent
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Issued Date -
Jul 11, 2024
app pub date -
Oct 26, 2023
filing date -
Jan 10, 2023
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Abstract
The disclosure deals with methodology and system subject matter for a low-cost and portable millimeter-wave software-defined radio (SDR) which supports wireless experimentation in the 60 GHz band. The SDR uses a homodyne transceiver and provides a Transmission Control Protocol/Internet Protocol (TCP/IP)-based interface for companion computer (CC)-based baseband signal processing. To address the large difference between the processing speed of the CC and the sample rate of analog-to-digital converters, we use a disclosed method, called waveform-triggered reception (WTR), where a hard-coded block detects a special trigger waveform to acquire a predetermined number of in-phase/quadrature (IQ) data samples upon the detection. A buffer mechanism is used to support discontinuous transmissions. Using both the WTR and discontinuous transmissions, we can conduct a beam sweeping experiment, to evaluate 4096 beam pairs rapidly without compromising the flexibility of the CC-based processing.
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