JP2011529661A - 無線通信システムにおけるデータ受信方法及び装置 - Google Patents
無線通信システムにおけるデータ受信方法及び装置 Download PDFInfo
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Abstract
【解決手段】前記方法は、第1のダウンリンクコンポーネント搬送波を介して物理ダウンリンク制御チャネル(physical downlink control channel;PDCCH)上にダウンリンクグラントを受信する段階;及び、前記ダウンリンクグラントに基づいて第2のダウンリンクコンポーネント搬送波を介してデータを受信する段階;を含むことを特徴とする。
【選択図】図18
Description
DCIフォーマット毎にCIBFが新たな情報フィールドとして追加されることができる。
基地局は、PDCCHのCRCに特定パターンのマスキングを介して搬送波情報を指示することができる。端末は、PDCCHのCRCマスキングのパターンを用いて前記PDCCHがどのコンポーネント搬送波のためのものであるかを区分することができる。例えば、CRCに搬送波情報をマスキングするために、端末IDが用いられることができる。
基地局は、LTE−A端末に内在的に搬送波情報を指示することができる。例えば、LTE−A端末は、PDCCHが送信されたCCE集団の1番目のCCEインデックス及び/またはCCE集団レベルなどから前記PDCCHがどのコンポーネント搬送波のためのものであるかが分かる。ただし、端末が特定PDCCHを受信することができない場合、搬送波情報はエラー発生確率が高い。
基地局は、端末にRRCシグナリングを介して搬送波情報を半静的に送信することができる。この場合、搬送波情報は半静的に変わることができる。
(項目1)
無線通信システムにおける端末により実行されるデータ受信方法において、
基地局から第1のダウンリンクコンポーネント搬送波を介して物理ダウンリンク制御チャネル(physical downlink control channel;PDCCH)上にダウンリンクグラントを受信する段階;及び、
前記ダウンリンクグラントに基づいて前記基地局から第2のダウンリンクコンポーネント搬送波を介してデータを受信する段階;を含むことを特徴とする方法。
(項目2)
前記ダウンリンクグラントは、前記第2のダウンリンクコンポーネント搬送波を指示するコンポーネント搬送波指示フィールドを含むことを特徴とする項目1に記載の方法。
(項目3)
前記ダウンリンクグラントの巡回冗長検査(cyclic redundancy check;CRC)は、端末識別子(ID)でスクランブルされ、前記端末識別子は、前記第2のダウンリンクコンポーネント搬送波を指示することを特徴とする項目1に記載の方法。
(項目4)
制御チャネル要素(control channel element;CCE)のインデックスは、前記第2のダウンリンクコンポーネント搬送波を指示し、前記制御チャネル要素は、前記PDCCHの送信に使用されることを特徴とする項目1に記載の方法。
(項目5)
前記基地局から前記第1のダウンリンクコンポーネント搬送波を介して第2のPDCCH上に第2のダウンリンクグラントを受信する段階;及び、
前記第2のダウンリンクグラントに基づいて第3のダウンリンクコンポーネント搬送波を介して第2のデータを受信する段階;をさらに含むことを特徴とする項目1に記載の方法。
(項目6)
無線通信システムにおける端末により実行されるデータ送信方法において、
基地局から第1のダウンリンクコンポーネント搬送波を介して物理ダウンリンク制御チャネル(PDCCH)上にアップリンクグラントを受信する段階;及び、
前記アップリンクグラントに基づいて第1のアップリンクコンポーネント搬送波を介して前記基地局にデータを送信する段階;を含むことを特徴とする方法。
(項目7)
前記アップリンクグラントは、前記第1のアップリンクコンポーネント搬送波を指示するコンポーネント搬送波指示フィールドを含むことを特徴とする項目6に記載の方法。
(項目8)
無線信号を送信及び/または受信するRF(radio frequency)ユニット;及び、
前記RFユニットと連結されたプロセッサ;を含み、
前記プロセッサは、第1のダウンリンクコンポーネント搬送波を介して物理ダウンリンク制御チャネル上にダウンリンクグラントを受信し、前記ダウンリンクグラントに基づいて第2のダウンリンクコンポーネント搬送波を介してデータを受信するように設定されることを特徴とする端末。
(項目9)
前記ダウンリンクグラントは、前記第2のダウンリンクコンポーネント搬送波を指示するコンポーネント搬送波指示フィールドを含むことを特徴とする項目8に記載の端末。
Claims (9)
- 無線通信システムにおける端末により実行されるデータ受信方法において、
基地局から第1のダウンリンクコンポーネント搬送波を介して物理ダウンリンク制御チャネル(physical downlink control channel;PDCCH)上にダウンリンクグラントを受信する段階;及び、
前記ダウンリンクグラントに基づいて前記基地局から第2のダウンリンクコンポーネント搬送波を介してデータを受信する段階;を含むことを特徴とする方法。 - 前記ダウンリンクグラントは、前記第2のダウンリンクコンポーネント搬送波を指示するコンポーネント搬送波指示フィールドを含むことを特徴とする請求項1に記載の方法。
- 前記ダウンリンクグラントの巡回冗長検査(cyclic redundancy check;CRC)は、端末識別子(ID)でスクランブルされ、前記端末識別子は、前記第2のダウンリンクコンポーネント搬送波を指示することを特徴とする請求項1に記載の方法。
- 制御チャネル要素(control channel element;CCE)のインデックスは、前記第2のダウンリンクコンポーネント搬送波を指示し、前記制御チャネル要素は、前記PDCCHの送信に使用されることを特徴とする請求項1に記載の方法。
- 前記基地局から前記第1のダウンリンクコンポーネント搬送波を介して第2のPDCCH上に第2のダウンリンクグラントを受信する段階;及び、
前記第2のダウンリンクグラントに基づいて第3のダウンリンクコンポーネント搬送波を介して第2のデータを受信する段階;をさらに含むことを特徴とする請求項1に記載の方法。 - 無線通信システムにおける端末により実行されるデータ送信方法において、
基地局から第1のダウンリンクコンポーネント搬送波を介して物理ダウンリンク制御チャネル(PDCCH)上にアップリンクグラントを受信する段階;及び、
前記アップリンクグラントに基づいて第1のアップリンクコンポーネント搬送波を介して前記基地局にデータを送信する段階;を含むことを特徴とする方法。 - 前記アップリンクグラントは、前記第1のアップリンクコンポーネント搬送波を指示するコンポーネント搬送波指示フィールドを含むことを特徴とする請求項6に記載の方法。
- 無線信号を送信及び/または受信するRF(radio frequency)ユニット;及び、
前記RFユニットと連結されたプロセッサ;を含み、
前記プロセッサは、第1のダウンリンクコンポーネント搬送波を介して物理ダウンリンク制御チャネル上にダウンリンクグラントを受信し、前記ダウンリンクグラントに基づいて第2のダウンリンクコンポーネント搬送波を介してデータを受信するように設定されることを特徴とする端末。 - 前記ダウンリンクグラントは、前記第2のダウンリンクコンポーネント搬送波を指示するコンポーネント搬送波指示フィールドを含むことを特徴とする請求項8に記載の端末。
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KR20080099671A KR101507839B1 (ko) | 2008-03-14 | 2008-10-10 | 무선접속 시스템에서 채널할당방법 |
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PCT/KR2009/004262 WO2010013959A2 (en) | 2008-07-30 | 2009-07-30 | Method and apparatus of receiving data in wireless communication system |
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JP2011529664A (ja) | 2011-12-08 |
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MA32582B1 (fr) | 2011-08-01 |
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US20110194514A1 (en) | 2011-08-11 |
EP2308185A4 (en) | 2015-06-24 |
CN102113242B (zh) | 2015-09-09 |
CN102113243A (zh) | 2011-06-29 |
US20110141941A1 (en) | 2011-06-16 |
WO2010013961A2 (en) | 2010-02-04 |
EG26099A (en) | 2013-02-17 |
JP5308525B2 (ja) | 2013-10-09 |
JP2011529662A (ja) | 2011-12-08 |
CN102113241A (zh) | 2011-06-29 |
CN102113242A (zh) | 2011-06-29 |
US9853793B2 (en) | 2017-12-26 |
EP2308185A2 (en) | 2011-04-13 |
WO2010013963A3 (en) | 2010-05-14 |
WO2010013959A2 (en) | 2010-02-04 |
EP2308183A4 (en) | 2014-07-23 |
JP5122684B2 (ja) | 2013-01-16 |
WO2010013959A3 (en) | 2010-05-14 |
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