Patent ID: 8170141
Filing Date: 2012-05-01
Classification: H04L

Abstract:
1. A transmitting device, which transmits a single-carrier signal, comprising: a coding unit which encodes a transmission information bit string and outputs the encoded transmission information bit string as a code bit string; a low-order modulating unit which conducts low-order modulation on the code bit string outputted from the encoding unit and outputs the low-order modulated code bit string as a low-order modulated signal; a first frequency domain converting unit which converts the low-order modulated signal outputted from the low-order modulating unit to a frequency domain signal and outputs the converted low-order modulated signal as a frequency spectrum; a partial spectrum selecting unit which selects a central 1/M portion (M is an integer greater than or equal to two) of a spectrum from the frequency spectrum outputted from the first frequency domain converting unit and outputs a spectrum selected signal; a first time domain converting unit which converts the spectrum selected signal outputted from the partial spectrum selecting unit to a time domain signal and outputs the converted spectrum selected signal as a transmission signal; a first serial/parallel converting unit which converts the transmission information bit string to M number of strings and outputs the M number of strings; wherein: the encoding unit encodes the respective signals of the M number of strings outputted from the first serial/parallel converting unit and outputs the encoded signals as code bit strings, and the low-order modulating unit conducts low-order modulation on the respective code bit strings of the M number of strings outputted from the encoding unit and outputs the low-order modulated code bit strings of the M number of strings as low-order modulated signals, the transmitting device further comprising: a weight multiplying unit which distributes predetermined power to the low-order modulated signals of the M number of strings outputted from the low-order modulating unit and outputs the power-distributed low-order modulated signals; and a first parallel/serial converting unit which converts the power-distributed low-order modulated signals of the M number of strings outputted from the weight multiplying unit to a single string and outputs the string to the first frequency domain converting unit.