Methods and Apparatuses for Windowing-Based Channel Filtering in an OFDM-Based Communication Network: abstract simplified (17914909)

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  • This abstract for appeared for patent application number 17914909 Titled 'Methods and Apparatuses for Windowing-Based Channel Filtering in an OFDM-Based Communication Network'

Simplified Explanation

The abstract describes a method and apparatus for handling signals in a communication network. The method involves receiving a signal that includes both a payload signal and an interference signal. The payload signal is in a specific frequency band, while the interference signal is in a different frequency band. The method includes separating the payload signal from the interference signal using a filter. The separated signals are then processed using a time window that is the same width as an OFDM symbol. This processing helps to achieve an output signal that includes the payload signal and a time-windowed interference signal, or a second output signal that includes the interference signal and a time-windowed payload signal. The windowed signals are attenuated by the FFT (Fast Fourier Transform) to ensure that the desired signal is not distorted.


Original Abstract Submitted

Disclosed is a method and an apparatus for handling signals in an OFDM-based communication network () received at a receiver (). The method comprises obtaining a signal in time domain, the signal comprising a payload signal sent from a transmitter () towards the receiver () as well as an interference signal, the payload signal residing in a first frequency band and the interference signal residing in a second frequency band outside the first frequency band. The method further comprises separating the payload signal from the interference signal using a filter, and processing () the payload signal with a time window (W, W), or the separated interference signal with a time window, (W, W), or processing both the separated payload signal with a window (W, W) and the obtained signal with a window (W, W), the window (W, W, W) being substantially an OFDM symbol wide, so as to achieve a output signal/first output signal comprising the payload signal and a time-windowed interference signal and/or a second output signal comprising the interference signal and a time-windowed payload signal. The windowed signals become attenuated by the FFT so that the wanted signal are achieved undisturbed.

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