18012118. METHOD AND APPARATUS FOR DOWNLINK MULTI-USER WITH DFT-S-OFDM WAVEFORM simplified abstract (RAKUTEN SYMPHONY SINGAPORE PTE. LTD.)

METHOD AND APPARATUS FOR DOWNLINK MULTI-USER WITH DFT-S-OFDM WAVEFORM

Organization Name

RAKUTEN SYMPHONY SINGAPORE PTE. LTD.

Inventor(s)

Erdem Bala of San Mateo CA (US)

METHOD AND APPARATUS FOR DOWNLINK MULTI-USER WITH DFT-S-OFDM WAVEFORM - A simplified explanation of the abstract

This abstract first appeared for US patent application 18012118 titled 'METHOD AND APPARATUS FOR DOWNLINK MULTI-USER WITH DFT-S-OFDM WAVEFORM

The abstract of this patent application describes a method performed by a network node in a wireless communication network. The method involves receiving data from multiple users, applying a discrete Fourier transform (DFT) transformation to the data, mapping the output to subcarriers, performing an inverse DFT on the output, and transmitting the signal over the network as a DFT-spread optical frequency division multiplexing (DFT-s-OFDM) signal.

• DFT transformation is applied to data from multiple users.
• Output is mapped to subcarriers using a subcarrier mapper.
• Inverse DFT is performed on the output.
• The signal is transmitted as a DFT-s-OFDM signal over the wireless communication network.

Potential Applications: - Wireless communication networks - Signal processing technologies - Optical frequency division multiplexing systems

Problems Solved: - Efficient data transmission in wireless networks - Signal processing for multiple users - Optimization of subcarrier mapping

Benefits: - Increased data transmission efficiency - Improved signal processing for multiple users - Enhanced network performance

Commercial Applications: Title: "Wireless Communication Network Optimization with DFT-s-OFDM Technology" This technology can be used in telecommunications companies, network infrastructure providers, and technology companies developing wireless communication solutions. It can optimize data transmission, improve network performance, and enhance user experience in wireless communication networks.

Questions about DFT-s-OFDM Technology: 1. How does DFT-s-OFDM technology improve data transmission efficiency in wireless networks? DFT-s-OFDM technology optimizes the mapping of data to subcarriers, allowing for more efficient use of the available frequency spectrum.

2. What are the potential applications of DFT-s-OFDM technology beyond wireless communication networks? DFT-s-OFDM technology can also be applied in optical communication systems, signal processing applications, and other industries requiring efficient data transmission methods.

Original Abstract Submitted

A method performed by at least one processor of a network node operating in a wireless communication network includes receiving data associated with a plurality of users. The method further includes performing, by a discrete Fourier transform (DFT) coder, a DFT transformation on the data associated with the plurality of users. The method further includes performing, on the output of the DFT coder by a subcarrier mapper, subcarrier mapping that maps the output of the DFT coder to a set of subcarriers. The method further includes performing an inverse DFT (IDFT) on the output of the subcarrier mapper. The method further includes transmitting, over the wireless communication network, the output of the IDFT as a DFT spread optical frequency division multiplexing (DFT-s-OFDM) signal.