POINT-TO-POINT RADIO DEVICE AND COMMUNICATION CONTROL METHOD

• Main Authors: SOUMA KAZUTOMO, UCHIDA ISAO
• Format: Patent
• Language: English; Japanese
• Published: 14.09.2017
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; TRANSMISSION

PROBLEM TO BE SOLVED: To provide a point-to-point radio device capable of performing multicarrier transmission while satisfying radio transmission spectrum regulations in the case of single carrier transmission.SOLUTION: Subcarrier generation means 11 generates subcarriers converted into a modulation wave of a modulation intermediate frequency band having a center frequency and a bandwidth in such a manner that the subcarriers can be arranged while satisfying radio transmission spectrum regulation of predetermined single carrier transmission, in accordance with the number of subcarriers on which multicarrier transmission is performed. Level increase/decrease calculation means 12 instructs increase/decrease of signal levels in a generation process of subcarriers in such a manner that the signal levels of the subcarriers satisfy the radio transmission spectrum regulations. When the signal level of each of the subcarriers satisfies the radio transmission spectrum regulations, a multicarrier including the subcarriers is synthesized by multicarrier synthesizing means 13 and outputted after frequency conversion into a radio intermediate frequency. The multicarrier in the radio intermediate frequency band is converted into a radio frequency band and outputted by radio transmission means 14.SELECTED DRAWING: Figure 1 【課題】シングルキャリア伝送時の無線送信スペクトラム規定を満足してマルチキャリア伝送ができるポイントツーポイント無線装置を提供する。【解決手段】サブキャリア生成手段１１で、マルチキャリア伝送するサブキャリア数に応じて、所定のシングルキャリア伝送の無線送信スペクトラム規定を満足して配置できる中心周波数と帯域幅を有する変調中間周波数帯の変調波に変換したサブキャリアを生成する。レベル増減演算手段１２で、サブキャリアの信号レベルが無線送信スペクトラム規定を満足するように、サブキャリアの生成過程で信号レベルの増減を指示する。サブキャリアのそれぞれの信号レベルが無線送信スペクトラム規定を満足したときに、マルチキャリア合成手段１３で各サブキャリアを含むマルチキャリアに合成して無線中間周波数帯に周波数変換して出力する。無線送信手段１４で、無線中間周波数帯のマルチキャリアを無線周波数帯に変換して出力する。【選択図】図１