POINT-TO-POINT RADIO DEVICE AND COMMUNICATION CONTROL METHOD

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 generates subcarriers converted into a modulation wave of a modulation in...

Full description

Saved in:
Bibliographic Details
Main Authors SOUMA KAZUTOMO, UCHIDA ISAO
Format Patent
LanguageEnglish
Japanese
Published 06.12.2018
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary: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 generates subcarriers converted into a modulation wave of a modulation intermediate frequency band having a center frequency and bandwidth by which the subcarriers can be arranged while satisfying radio transmission spectrum regulations of predetermined single carrier transmission, in accordance with the number of subcarriers on which multicarrier transmission is performed. Level increase/decrease calculation means instructs increase/decrease of signal level in a generation process of subcarriers so that the signal level of the subcarriers satisfies the radio transmission spectrum regulations. When the signal level of each of the subcarriers satisfies the radio transmission spectrum regulations, a multicarrier including respective subcarriers is synthesized by multicarrier synthesizing means and outputted after frequency conversion into a radio intermediate frequency band. The multicarrier in the radio intermediate frequency band is converted into a radio frequency band, and outputted by radio transmission means.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することができるポイントツーポイント無線装置を実現する。【解決手段】 サブキャリア生成手段で、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
Bibliography:Application Number: JP20180138547