JP5586768B2 - 端末装置、通信方法及び集積回路 - Google Patents
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Description
図1は、本実施の形態に係る基地局100の構成を示すブロック図である。
本設定方法では、割当部105は、各端末に設定された複数の単位バンド毎のサーチスペースが互いに隣接するように、複数の単位バンド毎に異なるサーチスペースを設定する。
本設定方法では、各端末に設定された複数の単位バンド毎のサーチスペース開始位置間のCCE間隔(すなわち、サーチスペース開始位置のオフセット)を、複数の端末毎に異ならせる。
本実施の形態では、基地局は、複数の下り単位バンド毎にサーチスペースを独立に設定する。
本実施の形態では、複数の下り単位バンドにおいて、特定の下り単位バンドのサーチスペースを、その特定の下り単位バンド以外の下り単位バンドのサーチスペースの開始位置の設定で用いるハッシュ関数の出力に基づいて設定する。
Claims (15)
- 一つ又は複数のcomponent carrierが設定された端末装置であって、
複数のコントロール・チャネル・エレメント(CCE)から構成されるサーチスペース内のCCEで送信された、前記component carrierにおいて割り当てられたリソースを示すリソース割当情報を含む下り制御チャネルを復号する受信部と、
前記下り制御チャネルが送信された前記CCEの番号に対応付けられた番号の上り制御チャネルで、ACK/NACK信号を送信する送信部と、
を有し、
n番目のcomponent carrierに対するサーチスペースの終了位置であるCCEの番号と、n+1番目のcomponent carrierに対するサーチスペースの開始位置であるCCEの番号とが連続する、
端末装置。 - 前記送信部は、前記複数のcomponent carrierに対する複数の前記ACK/NACK信号を、一つのcomponent carrierで送信する、
請求項1記載の端末装置。 - 前記複数のcomponent carrierに対する複数のサーチスペースが互いに隣接する、
請求項1又は2に記載の端末装置。 - n+1番目のcomponent carrierに対する前記サーチスペースの開始位置のCCEの番号Sn+1は、(Sn+L)modNCCE(ただし、Snはn番目のcomponent carrierに対する前記サーチスペースの開始位置であるCCEの番号、Lは前記サーチスペースを構成するCCEの数、NCCEはn番目のcomponent carrierにおけるCCEの総数)である、
請求項1から3のいずれかに記載の端末装置。 - 前記複数のcomponent carrierに対する複数のサーチスペースは、それぞれ、独立に設定される、
請求項1から4のいずれかに記載の端末装置。 - 前記サーチスペースを構成する前記複数のCCEは、下り制御チャネルを復号する対象である、
請求項1から5のいずれかに記載の端末装置。 - 前記サーチスペースは、連続する番号の前記複数のCCEから構成される、
請求項1から6のいずれかに記載の端末装置。 - 一つ又は複数のcomponent carrierが設定された端末における通信方法であって、
複数のコントロール・チャネル・エレメント(CCE)から構成されるサーチスペース内のCCEで送信された、前記component carrierにおいて割り当てられたリソースを示すリソース割当情報を含む下り制御チャネルを復号し、
前記下り制御チャネルが送信された前記CCEの番号に対応付けられた上り制御チャネルで、ACK/NACK信号を送信し、
n番目のcomponent carrierに対するサーチスペースの終了位置であるCCEの番号と、n+1番目のcomponent carrierに対するサーチスペースの開始位置であるCCEの番号とが連続する、
通信方法。 - 前記複数のcomponent carrierに対する複数の前記ACK/NACK信号を、一つのcomponent carrierで送信する、
請求項8記載の通信方法。 - 前記複数のcomponent carrierに対する複数のサーチスペースが互いに隣接する、
請求項8又は9に記載の通信方法。 - n+1番目のcomponent carrierに対する前記サーチスペースの開始位置のCCEの番号Sn+1は、(Sn+L)modNCCE(ただし、Snはn番目のcomponent carrierに対する前記サーチスペースの開始位置であるCCEの番号、Lは前記サーチスペースを構成するCCEの数、NCCEはn番目のcomponent carrierにおけるCCEの総数)である、
請求項8から10のいずれかに記載の通信方法。 - 前記複数のcomponent carrierに対する複数のサーチスペースは、それぞれ、独立に設定される、
請求項8から11のいずれかに記載の通信方法。 - 前記サーチスペースを構成する前記複数のCCEは、下り制御チャネルを復号する対象である、
請求項8から12のいずれかに記載の通信方法。 - 前記サーチスペースは、連続する番号の前記複数のCCEから構成される、
請求項8から13のいずれかに記載の通信方法。 - 一つ又は複数のcomponent carrierが設定された端末における処理を制御する集積回路であって、
複数のコントロール・チャネル・エレメント(CCE)から構成されるサーチスペース内のCCEで送信された、前記component carrierにおいて割り当てられたリソースを示すリソース割当情報を含む下り制御チャネルを復号する処理と、
前記下り制御チャネルが送信された前記CCEの番号に対応付けられた上り制御チャネルで、ACK/NACK信号を送信する処理と、
を制御し、
n番目のcomponent carrierに対するサーチスペースの終了位置であるCCEの番号と、n+1番目のcomponent carrierに対するサーチスペースの開始位置であるCCEの番号とが連続する、
集積回路。
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