MaxLinear. has filed a patent for an access point technology that optimizes peak to average power ratio (PAPR) in transmit signals. The system identifies puncturing patterns, computes tone rotation patterns, and selects the best pattern to minimize PAPR, enhancing wireless communication efficiency. GlobalData’s report on MaxLinear 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 MaxLinear, Digital watermarking was a key innovation area identified from patents. MaxLinear's grant share as of January 2024 was 66%. Grant share is based on the ratio of number of grants to total number of patents.
Access point for minimizing peak to average power ratio
The patent application (Publication Number: US20240039765A1) describes an innovative access point and station (STA) for wireless communication systems. The access point includes a processing device that identifies a puncturing pattern for a channel width of a physical layer protocol data unit (PPDU) and computes tone rotation patterns to minimize the peak to average power ratio (PAPR) of the transmit signal. The selection of the tone rotation pattern is based on the puncturing pattern, enhancing the efficiency of signal transmission to wireless devices. Additionally, the processing device can compute a selection matrix, minimize the PAPR based on the selection matrix, and update the tone rotation pattern as needed.
Furthermore, the method for wireless communication outlined in the patent application involves computing a selection matrix, tone rotation patterns, and projection vectors to minimize the maximum values and select an optimal tone rotation pattern. By reducing the PAPR for the transmit signal and maintaining performance levels, the proposed technology offers improved efficiency and reliability in wireless communication systems. The use of tone rotation patterns based on specific parameters and puncturing patterns enhances the overall quality of signal transmission, making it suitable for applications requiring extremely high throughput (EHT) or non-high-throughput (HT) transmission. The method also supports various modulated fields within the PPDU and can adapt to different channel widths and transmission scenarios, including multi-user orthogonal frequency-division multiple access (OFDMA) and duplicate transmissions.
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