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US 2022/0103313 A1Published application
Communication system
AssigneeMitsubishi Electric Corporation
InventorsKuniyuki SUZUKI, Masayuki NAKAZAWA
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Abstract
Provided is a technology capable of securing communication quality without providing an additional function such as phase correction. A base station device and a communication terminal device when operating as a transmitting device rotate inverse fast Fourier transform (IFFT) output, and copy a last portion of the rotated IFFT output to a head of the rotated IFFT output as a cyclic prefix (CP) to thereby generate a transmission signal so that there is no phase rotation at a head of a demodulation reception window set in a receiving device.
Claims4
A communication system comprising:
- a base station device;
- and
- a communication terminal device configured to perform radio communication with the base station device, wherein
- the base station device and the communication terminal device when operating as a transmitting device rotate inverse fast Fourier transform (IFFT) output, and copy a last portion of the rotated IFFT output to a head of the rotated IFFT output as a cyclic prefix (CP) to thereby generate a transmission signal so that there is no phase rotation at a head of a demodulation reception window set in a receiving device.
1 more element
Dependencies are inferred from the claim text.