TRANSMITTER AND PROGRAM

• Main Authors: IJIGUCHI TOMOYA, SHIRAI NORIYUKI, TSUCHIDA KENICHI, MIYASAKA HIROAKI, SATO AKIHIKO, ASAKURA SHINGO, KAWASHIMA SHOGO, HONDA MADOKA, TAKEUCHI TOMOAKI, NAKATOGAWA TAKESHI, TAKADA MASAYUKI, SHITOMI TAKUYA, OKANO MASAHIRO
• Format: Patent
• Language: English; Japanese
• Published: 12.11.2020
• Subjects: BROADCAST COMMUNICATION; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; PICTORIAL COMMUNICATION, e.g. TELEVISION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

To increase transmission capacity and increase the number of alternatives of transmission capacity in each layer in next generation broadcasting.SOLUTION: A transmitter 1 comprises: a signal generation unit 11 for generating a first data carrier symbol for a first frequency band on the basis of a first broadcasting system; a signal generation unit 12 for generating a second data carrier symbol for a second frequency band including the first frequency band on the basis of a second broadcasting system; an adjustment unit 13 for making amplitude of the second data carrier symbol be smaller than that of the first data carrier symbol; a multiplexing unit 16 for multiplexing the first and second data carrier symbols; and an OFDM frame configuration unit 19 for adding SP, TMCC, and AC to data carriers to which the first and second data carrier symbols are allocated. The signal generation unit 12 takes, as the second frequency band, a frequency band including 27 segments, where one segment bandwidth is obtained by dividing a channel bandwidth into 28.SELECTED DRAWING: Figure 1 【課題】次世代放送について、伝送容量を増やし、且つ各階層の伝送容量の選択肢を増やす。【解決手段】送信装置１は、第１の放送方式に基づき第１の周波数帯域の第１のデータキャリアシンボルを生成する信号生成部１１と、第２の放送方式に基づき第１の周波数帯域を含む第２の周波数帯域の第２のデータキャリアシンボルを生成する信号生成部１２と、第２のデータキャリアシンボルの振幅を第１のデータキャリアシンボルよりも小さくさせる調整部１３と、第１及び第２のデータキャリアシンボルを多重する多重部１６と、第１及び第２のデータキャリアシンボルを割り当てたデータキャリアに、ＳＰ、ＴＭＣＣ、ＡＣを付加するＯＦＤＭフレーム構成部１９と、を備え、信号生成部１２は、チャンネル帯域幅を２８分割した帯域幅を１セグメント帯域幅として、２７セグメントを含む周波数帯域を第２の周波数帯域とする。【選択図】図１