OFDM RECEPTION APPARATUS AND OFDM RECEPTION METHOD

• Main Authors: SUGANO MIKI, NAITO MASAHIRO, SUZUKI HIROSHI
• Format: Patent
• Language: English; French; German
• Published: 01.06.2016
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

An OFDM reception apparatus (100) comprises: an OFDM demodulation unit (110); an error correction decoding unit (102); a reception level calculation unit (121) that calculates parameter values on a carrier-by-carrier basis as indices of reception state quality; an error information detection unit (122) that detects the state of transmission errors and their correction and outputs data series in error correction processing units; a group determination unit (131) that performs a grouping operation by dividing a frequency band to which carriers constituting the OFDM demodulated signal belong into a plurality of carrier groups by grouping consecutive carriers on a frequency axis and dividing the data series, in error correction processing units, into a continuous plurality of data groups; an error information measurement unit (133) that measures the output from the error information detection unit (122) in units of the data groups, for each of the plurality of data groups; and a reception level shaping unit (132) that calculates a representative value for each carrier group according to the parameter values output from the reception level calculation unit (121).