JP2015043608A - 移動局装置、基地局装置及び集積回路 - Google Patents
移動局装置、基地局装置及び集積回路 Download PDFInfo
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Abstract
Description
本発明の実施の形態1に係る基地局100の構成を図6に示し、本発明の実施の形態1に係る移動局200の構成を図7に示す。
本発明の実施の形態2に係る基地局及び移動局の構成は、実施の形態1の図6及び図7に示した構成と同様であるので、図6及び図7を援用して説明する。
本発明の実施の形態3では、CQI信号と応答信号(ACK/NACK信号)とを同時に送信する場合について説明する。すなわち、基地局は予め移動局に対してCQI信号を送信するタイミングを指示しているが、基地局側の下りデータ信号割り当てのタイミングによっては、ある移動局がCQI信号と下りデータ信号に対する応答信号(ACK又はNACK)とを同時に送信する場合がある。このとき、同時に送信されるCQI信号と応答信号とをまとめてCQI+応答信号と表記する。なお、応答信号がNACKであった場合、CQI+NACK信号と表記し、応答信号がACKであった場合、CQI+ACK信号と表記する。
本発明の実施の形態4に係る基地局及び移動局の構成は、実施の形態3の図14及び図15に示した構成と同様であるので、図14及び図15を援用して説明する。
102 制御情報生成部
103,105 符号化部
104,107,213,218 変調部
106 再送制御部
108 マッピング部
109,215,220 IFFT部
110,216,221 CP付加部
111,224 無線送信部
112,201 アンテナ
113,202 無線受信部
114,203 CP除去部
115 相関処理部
116 分離部
117 逆拡散部
118,208 判定部
119 RS合成部
120,206,210 復調部
121,207,211 復号部
204 FFT部
205 抽出部
209 制御部
212 CRC部
214,217,219 拡散部
222 RS位相付加部
223 送信信号選択部
Claims (4)
- 応答信号を送信せずにCQI信号を送信する場合、送信フォーマットの複数のRSに同相の位相を付加し、CQI信号及び応答信号を送信する場合、送信フォーマットの複数のRSに、前記応答信号がACK又はNACKに応じて同相又は逆相の位相を付加するRS位相付加手段と、
前記位相が付加されたRSを含むCQI信号を送信する送信手段と、
を具備する移動局装置。 - 移動局装置から送信された信号を受信する受信手段と、
前記移動局装置から応答信号が送信されずにCQI信号が送信される場合、送信フォーマットの複数のRSの位相が同相であるとして推定した伝搬路情報を用いてCQI信号を復調し、前記移動局装置からCQI信号及び応答信号が送信される場合、送信フォーマットの複数のRSの位相から前記応答信号がACK又はNACKのいずれであるかを判定し、前記判定結果に基づいて送信フォーマットの複数のRSの位相を補正して推定した伝搬路情報を用いてCQI信号を復調する復調部と、
を具備する基地局装置。 - 応答信号を送信せずにCQI信号を送信する場合、送信フォーマットの複数のRSに同相の位相を付加し、CQI信号及び応答信号を送信する場合、送信フォーマットの複数のRSに、前記応答信号がACK又はNACKに応じて同相又は逆相の位相を付加するRS位相付加手段と、
前記位相が付加されたRSを含むCQI信号を送信する送信手段と、
を具備する集積回路。 - 移動局装置から送信された信号を受信する受信手段と、
前記移動局装置から応答信号が送信されずにCQI信号が送信される場合、送信フォーマットの複数のRSの位相が同相であるとして推定した伝搬路情報を用いてCQI信号を復調し、前記移動局装置からCQI信号及び応答信号が送信される場合、送信フォーマットの複数のRSの位相から前記応答信号がACK又はNACKのいずれであるかを判定し、前記判定結果に基づいて送信フォーマットの複数のRSの位相を補正して推定した伝搬路情報を用いてCQI信号を復調する復調部と、
を具備する集積回路。
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