RADIO SIGNAL DECODING AND DECODER

摘要

A radio signal decoder (100) is provided. The radio signal decoder (100) comprises a receiver configured to receive a digitized radio signal (122), the radio signal having modulated subcarrier frequencies encoding digital information, a first set of the subcarrier frequencies having a first subcarrier spacing (PUSCH; PUCCH; SRS), a second set of the subcarrier frequencies having a second subcarrier spacing (RACH), a first transformer (130, FFT) configured to transform the digitized radio signal from a time domain into a frequency domain, the transformer being configured with the first subcarrier spacing, an a first decoder (140, PUSCH; PUCCH; SRS) configured to reconstruct digital information from the output of the first transformer, and an inverse transformer (220, IFFT) configured to receive as input at least a part of the output (132) of the first transformer representing a frequency range overlapping the second set of subcarrier frequencies, and to transform the input from the frequency domain back to the time domain, the first inverse transformer being configured with the first subcarrier spacing, a second transformer (160, FFT) configured to transform the output of inverse transformer from the time domain to a frequency domain, the second transformer being configured with the second subcarrier spacing, a second decoder (170, 180, ZC) reconstructing digital information from the output of the second transformer.

主权项

1. A radio signal decoder comprising
a receiver configured to receive a digitized radio signal, the radio signal having modulated subcarrier frequencies encoding digital information; a first transformer configured to transform the digitized radio signal from a time domain into a frequency domain, the first transformer producing a first transformed signal having a value for each frequency in the first set; a first configured to reconstruct digital information from the output of the first transformer; an inverse transformer configured to
receive as input at least a part of the output of the first transformer representing a frequency range overlapping the second set of subcarrier frequencies, and totransform the input from the frequency domain back to the time domain; a second transformer configured to transform the output of the inverse transformer from the time domain to a frequency domain, the second transformer producing a second transformed signal having a value for each frequency in the second set; a second decoder reconstructing digital information from the output of the second transformer.