Patent ID: 9203679
Filing Date: 2015-12-01
Classification: H04L

Abstract:
1. A low latency transmitter for an Orthogonal Frequency Division Multiplexed (OFDM) system, the low latency transmitter comprising: an Inverse Fourier Transformation module configured to compute an Inverse Discrete Fourier Transform (IDFT) of data symbols thereby obtaining Inverse Discrete Fourier Transformed samples, the data symbols correspond to Phase Shift Keying (PSK) constellation data symbols or Quadrature Amplitude Modulation (QAM) constellation data symbols; a baseband modulator configured to perform complex modulation of the Inverse Discrete Fourier Transformed samples thereby obtaining OFDM modulated symbols, the complex modulation comprises multiplying the Inverse Discrete Fourier Transformed samples by 1 and −1 alternatively in the time domain using at least one AND gate and at least one XOR gate, and the multiplication by −1 corresponds to a 2's complement operation; and one or more transmitting antennas for transmitting a Radio Frequency (RF) modulated signal containing the OFDM modulated symbols.