18156801. METHOD AND DEVICE FOR TRANSMITTING OFDM SIGNAL, AND METHOD AND DEVICE FOR RECEIVING OFDM SIGNAL simplified abstract (LG Electronics Inc.)
Contents
METHOD AND DEVICE FOR TRANSMITTING OFDM SIGNAL, AND METHOD AND DEVICE FOR RECEIVING OFDM SIGNAL
Organization Name
Inventor(s)
METHOD AND DEVICE FOR TRANSMITTING OFDM SIGNAL, AND METHOD AND DEVICE FOR RECEIVING OFDM SIGNAL - A simplified explanation of the abstract
This abstract first appeared for US patent application 18156801 titled 'METHOD AND DEVICE FOR TRANSMITTING OFDM SIGNAL, AND METHOD AND DEVICE FOR RECEIVING OFDM SIGNAL
Simplified Explanation
The patent application describes a method for transmitting an orthogonal frequency division multiplexing (OFDM) signal in a wireless communication system. The method involves generating a frequency-shifted OFDM baseband signal by shifting the frequency of a first signal by a specific difference. This difference is calculated as the carrier frequency minus a specific frequency, which is chosen from a set of frequencies closest to the carrier frequency and corresponding to integer multiples of a specific subcarrier spacing. The frequency-shifted OFDM baseband signal is then up-converted to the carrier frequency using an analog oscillator to generate an OFDM symbol signal, which is then transmitted at the carrier frequency.
- The method involves generating a frequency-shifted OFDM baseband signal.
- The frequency shift is calculated based on the carrier frequency and a specific frequency chosen from a set of frequencies closest to the carrier frequency.
- The specific frequency is selected from frequencies corresponding to integer multiples of a specific subcarrier spacing.
- The frequency-shifted OFDM baseband signal is up-converted to the carrier frequency using an analog oscillator.
- The up-converted signal is transmitted at the carrier frequency.
Potential Applications
- Wireless communication systems
- Mobile networks
- Internet of Things (IoT) devices
- Wi-Fi networks
Problems Solved
- Efficient transmission of OFDM signals in wireless communication systems
- Frequency shifting and up-conversion of baseband signals
- Optimization of subcarrier spacing for improved signal transmission
Benefits
- Improved signal transmission efficiency
- Enhanced performance of wireless communication systems
- Increased capacity and throughput in mobile networks
- Better connectivity and data transfer in IoT devices
- Improved Wi-Fi network performance and coverage
Original Abstract Submitted
A method of transmitting, by a transmitting device, an orthogonal frequency division multiplexing (OFDM) signal in a wireless communication system, the method including: generating, by a digital module of the transmitting device, a frequency-shifted OFDM baseband signal by performing frequency up-shift of a first signal by a difference between a carrier frequency fand a first frequency f, wherein the first frequency fis among frequencies corresponding to integer multiples of 128Δf closest to the carrier frequency f, and wherein Δf is an OFDM subcarrier spacing; up-converting, by an analog oscillator of the transmitting device, the frequency-shifted OFDM baseband signal by the first frequency fto generate an OFDM symbol signal at the carrier frequency f; and transmitting the OFDM symbol signal at the carrier frequency f.
