JP6262801B2 - 無線通信システムにおいて肯定応答/否定応答情報を送信する方法及び装置 - Google Patents
無線通信システムにおいて肯定応答/否定応答情報を送信する方法及び装置 Download PDFInfo
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Description
前述したように、端末にPUCCHフォーマット3が用いられるように設定された場合、1つのダウンリンク割当PDCCHだけを受信するとき、端末はPUCCHリソースを決定できなくなることがある。例えば、図19の例示において、端末がDAI=1のPDCCH一つだけを受信し、他のPDCCHは受信できなかった場合、ARIを受信できなかった場合となるため、端末は、ACK/NACK送信のためにいずれのPUCCHリソースを使用するか決定できなくなる問題が生じることがある。
Claims (12)
- 無線通信システムにおいて、物理アップリンク制御チャネル(PUCCH)フォーマット3で構成された中継器(RN)が肯定応答/否定応答(ACK/NACK)情報を送信する方法であって、
M個のマルチキャストブロードキャスト単一周波数ネットワーク(MBSFN)サブフレームを含み、M≧1である、一つのダウンリンクサブフレームセットにおいて、バックホールダウンリンク送信を基地局から受信するステップと、
前記バックホールダウンリンク送信のためのACK/NACK情報が送信されるPUCCHフォーマット及びPUCCHリソースを決定するステップと、
前記PUCCHフォーマット及び前記PUCCHリソースを利用してバックホールアップリンクサブフレームにおける前記ACK/NACK情報を前記基地局へ送信するステップとを含み、
前記PUCCHフォーマット3で構成された中継器が、一つの物理ダウンリンク共有チャネル(PDSCH)を前記ダウンリンクサブフレームセット内で受信するとき、前記中継器は前記ACK/NACK情報を上位層設定にしたがって決定されるPUCCHフォーマット1a/1b及び前記PUCCHリソースを利用して送信する、方法。 - 2以上の物理ダウンリンク制御チャネル(PDCCH)が前記ダウンリンクサブフレーム内で受信されるとき、前記PUCCHリソースは、前記上位層設定により設定された複数のPUCCHリソースの中から選択され、1より大きいダウンリンク割当インデックス(DAI)を有するPDCCHの送信電力制御(TPC)フィールドにより決定される、請求項1に記載の方法。
- 前記PDCCHはR−PDCCHである、請求項2に記載の方法。
- 2つ以上のダウンリンク割当てPDCCHが前記ダウンリンクサブフレームセット内で受信されるとき、前記ACK/NACK情報は前記PUCCHフォーマット3を利用して送信される、請求項1に記載の方法。
- 前記PUCCHリソースは高位層信号通知により明示的に設定される、請求項1に記載の方法。
- 前記無線通信システムは時分割2重(TDD)システムである、請求項1に記載の方法。
- 無線通信システムにおいて、肯定応答/否定応答(ACK/NACK)情報を送信するための物理アップリンク制御チャネル(PUCCH)フォーマット3に設定された中継器(RN)であって、
受信モジュールと、
送信モジュールと、
前記受信モジュールと前記送信モジュールを含む前記中継器を制御するプロセッサとを含み、
前記プロセッサは、
M個のマルチキャストブロードキャスト単一周波数ネットワーク(MBSFN)サブフレームを含み、M≧1である、一つのダウンリンクサブフレームセットにおいて、バックホールダウンリンク送信を、前記受信モジュールを介して基地局から受信し、前記バックホールダウンリンク送信のためのACK/NACK情報が送信されるPUCCHフォーマット及びPUCCHリソースを決定し、前記PUCCHフォーマット及び前記PUCCHリソースを利用してバックホールアップリンクサブフレームにおける前記ACK/NACK情報を、前記送信モジュールを介して前記基地局へ送信するように構成され、
前記PUCCHフォーマット3で構成された中継器が、一つの物理ダウンリンク共有チャネル(PDSCH)を前記ダウンリンクサブフレームセット内で受信するとき、前記中継器は、前記ACK/NACK情報を上位層設定にしたがって決定されるPUCCHフォーマット1a/1b及び前記PUCCHリソースを利用して送信する、中継器。 - 2以上の物理ダウンリンク制御チャネル(PDCCH)が前記ダウンリンクサブフレーム内で受信されるとき、前記PUCCHリソースは、前記上位層設定により設定された複数のPUCCHリソースの中から選択され、1より大きいダウンリンク割当インデックス(DAI)を有するPDCCHの送信電力制御(TPC)フィールドにより決定される、請求項7に記載の中継器。
- 前記PDCCHはR−PDCCHである、請求項8に記載の中継器。
- 2つ以上のダウンリンク割当てPDCCHが前記ダウンリンクサブフレームセット内で受信されるとき、前記ACK/NACK情報は前記PUCCHフォーマット3を利用して送信される、請求項7に記載の中継器。
- 前記PUCCHリソースは高位層信号通知により明示的に設定される、請求項7に記載の中継器。
- 前記無線通信システムは時分割2重(TDD)システムである、請求項7に記載の中継器。
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US201161449066P | 2011-03-03 | 2011-03-03 | |
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US201161486745P | 2011-05-16 | 2011-05-16 | |
US61/486,745 | 2011-05-16 | ||
KR10-2012-0020142 | 2012-02-28 | ||
KR1020120020142A KR101919780B1 (ko) | 2011-03-03 | 2012-02-28 | 무선 통신 시스템에서 확인응답 정보를 전송하는 방법 및 장치 |
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JP2016096008A Expired - Fee Related JP6262801B2 (ja) | 2011-03-03 | 2016-05-12 | 無線通信システムにおいて肯定応答/否定応答情報を送信する方法及び装置 |
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EP (1) | EP2681865B1 (ja) |
JP (2) | JP5937624B2 (ja) |
KR (1) | KR101919780B1 (ja) |
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