18145008. TECHNIQUES FOR CYCLIC PREFIX COMPATIBLE FORMULATION OF SINGLE CARRIER WAVEFORMS simplified abstract (QUALCOMM Incorporated)

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TECHNIQUES FOR CYCLIC PREFIX COMPATIBLE FORMULATION OF SINGLE CARRIER WAVEFORMS

Organization Name

QUALCOMM Incorporated

Inventor(s)

Vinayak Suresh of San Diego CA (US)

Seyedkianoush Hosseini of San Diego CA (US)

Jing Jiang of San Diego CA (US)

TECHNIQUES FOR CYCLIC PREFIX COMPATIBLE FORMULATION OF SINGLE CARRIER WAVEFORMS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18145008 titled 'TECHNIQUES FOR CYCLIC PREFIX COMPATIBLE FORMULATION OF SINGLE CARRIER WAVEFORMS

Simplified Explanation: This patent application describes methods, systems, and devices for wireless communications, specifically focusing on formulating single carrier waveforms into an orthogonal frequency-division multiple access (OFDMA) framework.

  • Frequency domain fast Fourier transform (FFT) is applied to the single carrier waveform to fit it into the cyclic prefix OFDM (CP-OFDM) grid.
  • Bandwidth expansion and spectrum shaping techniques are applied to the output of the FFT.
  • Inverse FFT (IFFT) processing is then applied to the output of the bandwidth expansion and spectrum shaping.
  • The output of the IFFT is represented in an OFDM compatible manner.

Key Features and Innovation: - Formulating single carrier waveforms into an OFDMA framework - Applying FFT, bandwidth expansion, and spectrum shaping techniques - Representing the output in an OFDM compatible manner

Potential Applications: This technology can be applied in various wireless communication systems, such as 5G networks, Wi-Fi, and other broadband communication systems.

Problems Solved: This technology addresses the need for efficient utilization of spectrum and improved data transmission in wireless communication systems.

Benefits: - Enhanced spectral efficiency - Improved data transmission rates - Compatibility with OFDM systems

Commercial Applications: Potential commercial applications include telecommunications infrastructure, mobile network operators, and IoT devices.

Questions about Wireless Communications: 1. How does this technology improve spectral efficiency in wireless communication systems? 2. What are the key differences between OFDMA and CP-OFDM in the context of this innovation?


Original Abstract Submitted

Methods, systems, and devices for wireless communications are described. Techniques described herein provide for formulating single carrier waveforms into an orthogonal frequency-division multiple access (OFDMA) framework. To fit into the cyclic prefix OFDM (CP-OFDM) grid, a frequency domain fast Fourier transform (FFT) may be applied to the single carrier waveform, a bandwidth expansion and spectrum shaping may be applied to the output of the FFT and inverse FFT (IFFT) processing may be applied to the output of the bandwidth expansion and spectrum shaping. The output of the IFFT may then be represented in an OFDM compatible manner.

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