JP5711277B2 - 複数アンテナをサポートする無線通信システムにおいてチャネル状態情報参照信号の設定情報を提供する方法及び装置 - Google Patents
複数アンテナをサポートする無線通信システムにおいてチャネル状態情報参照信号の設定情報を提供する方法及び装置 Download PDFInfo
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Description
CSI−RS設定2:隣接セルのCSI−RS設定(B個のアンテナ用CSI−RS)
CSI−RS設定3:仮想単一セルのCSI−RS設定(A+B個のアンテナ用CSI−RS)
Claims (16)
- 複数アンテナ送信をサポートする基地局からチャネル状態情報参照信号(CSI−RS)を端末に送信する方法であって、
前記基地局が、前記CSI−RSに対して前記端末が0でない送信電力を仮定する一つのCSI−RS設定、又は前記CSI−RSに対して前記端末が0の送信電力を仮定する少なくとも一つのCSI−RS設定のうち少なくとも一つを含む1又は複数のCSI−RS設定の情報を、前記端末に送信するステップと、
前記基地局が、前記1又は複数のCSI−RS設定に基づいて、CSI−RSを少なくとも一つのダウンリンクサブフレームのリソース要素にマップするステップと、
前記基地局が、前記CSI−RSがマップされた前記少なくとも一つのダウンリンクサブフレームを前記端末に送信するステップと、を有し、
前記CSI−RSがマップされた前記少なくとも一つのダウンリンクサブフレームは、少なくとも一つのCSI−RSサブフレーム設定によって設定され、前記少なくとも一つのCSI−RSサブフレーム設定はそれぞれ、所定の周期及び所定のオフセットを示し、
前記少なくとも一つのCSI−RSサブフレーム設定は、前記端末が0でない送信電力を仮定するCSI−RS、及び0の送信電力を仮定するCSI−RSに対して別々に設定される、方法。 - 前記1又は複数のCSI−RS設定は、前記CSI−RSがマップされる前記リソース要素の位置を示す、請求項1に記載の方法。
- 前記所定の周期及び前記所定のオフセットは、セル特定として設定される、請求項1に記載の方法。
- 前記CSI−RSに対して前記端末が0の送信電力を仮定する前記CSI−RS設定は、隣接基地局のCSI−RSが送信されるリソース要素の位置に該当する、請求項1に記載の方法。
- 前記CSI−RSは、1、2、4又は8個のアンテナポートに対して送信される、請求項1に記載の方法。
- 前記基地局が、専用無線リソース制御(RRC)信号通知を通じて、前記1又は複数のCSI−RS設定のうち、前記端末がCSIフィードバック用に用いられるCSI−RS設定の指示を送信するステップを更に有する、請求項1に記載の方法。
- 複数アンテナ送信をサポートする基地局からのチャネル状態情報参照信号(CSI−RS)を用いて、端末がチャネル状態情報(CSI)を送信する方法であって、
前記端末が、前記CSI−RSに対して前記端末が0でない送信電力を仮定する一つのCSI−RS設定、又は前記CSI−RSに対して前記端末が0の送信電力を仮定する少なくとも一つのCSI−RS設定のうち少なくとも一つを含む1又は複数のCSI−RS設定の情報を、前記基地局から受信するステップと、
前記端末が、前記1又は複数のCSI−RS設定に基づいて、CSI−RSがリソース要素にマップされた少なくとも一つのダウンリンクサブフレームを、前記基地局から受信するステップと、
前記端末が、前記CSI−RSを用いて測定した前記CSIを、前記基地局に送信するステップと、を有し、
前記CSI−RSがマップされた前記少なくとも一つのダウンリンクサブフレームは、少なくとも一つのCSI−RSサブフレーム設定によって設定され、前記少なくとも一つのCSI−RSサブフレーム設定はそれぞれ、所定の周期及び所定のオフセットを示し、
前記少なくとも一つのCSI−RSサブフレーム設定は、前記端末が0でない送信電力を仮定するCSI−RS、及び0の送信電力を仮定するCSI−RSに対して別々に設定される、方法。 - 前記1又は複数のCSI−RS設定は、前記CSI−RSがマップされる前記リソース要素の位置を示す、請求項7に記載の方法。
- 前記所定の周期及び前記所定のオフセットは、セル特定として設定される、請求項7に記載の方法。
- 前記CSI−RSに対して前記端末が0の送信電力を仮定する前記CSI−RS設定は、隣接基地局のCSI−RSが送信されるリソース要素の位置に該当する、請求項7に記載の方法。
- 前記CSI−RSは、1、2、4又は8個のアンテナポートに対して送信される、請求項7に記載の方法。
- 前記基地局から、専用無線リソース制御(RRC)信号通知を通じて、前記1又は複数のCSI−RS設定のうち、前記端末のCSIフィードバック用に用いられるCSI−RS設定の指示を受信するステップを更に有する、請求項7に記載の方法。
- 複数アンテナ送信用のチャネル状態情報参照信号(CSI−RS)を送信する基地局であって、
端末からアップリンク信号を受信する受信モジュールと、
前記端末にダウンリンク信号を送信する送信モジュールと、
前記受信モジュール及び前記送信モジュールを備える前記基地局を制御するプロセッサと、を備え、
前記プロセッサは、
前記CSI−RSに対して前記端末が0でない送信電力を仮定する一つのCSI−RS設定、又は前記CSI−RSに対して前記端末が0の送信電力を仮定する少なくとも一つのCSI−RS設定のうち少なくとも一つを含む1又は複数のCSI−RS設定の情報を、前記送信モジュールを通じて前記端末に送信し、
前記1又は複数のCSI−RS設定に基づいて、CSI−RSを少なくとも一つのダウンリンクサブフレームのリソース要素にマップし、
前記CSI−RSがマップされた前記少なくとも一つのダウンリンクサブフレームを、前記送信モジュールを通じて前記端末に送信するように構成され、
前記CSI−RSがマップされた前記少なくとも一つのダウンリンクサブフレームは、少なくとも一つのCSI−RSサブフレーム設定によって設定され、前記少なくとも一つのCSI−RSサブフレーム設定はそれぞれ、所定の周期及び所定のオフセットを示し、
前記少なくとも一つのCSI−RSサブフレーム設定は、前記端末が0でない送信電力を仮定するCSI−RS、及び0の送信電力を仮定するCSI−RSに対して別々に設定される、基地局。 - 複数アンテナ送信をサポートする基地局からのチャネル状態情報参照信号(CSI−RS)を用いて、チャネル状態情報(CSI)を送信する端末であって、
前記基地局からダウンリンク信号を受信する受信モジュールと、
前記基地局にアップリンク信号を送信する送信モジュールと、
前記受信モジュール及び前記送信モジュールを備える前記端末を制御するプロセッサと、を備え、
前記プロセッサは、
前記CSI−RSに対して前記端末が0でない送信電力を仮定する一つのCSI−RS設定、又は前記CSI−RSに対して前記端末が0の送信電力を仮定する少なくとも一つのCSI−RS設定のうち少なくとも一つを含む1又は複数のCSI−RS設定に対する情報を、前記受信モジュールを通じて前記基地局から受信し、
前記1又は複数のCSI−RS設定に基づいて、CSI−RSがリソース要素にマップされた少なくとも一つのダウンリンクサブフレームを、前記受信モジュールを通じて前記基地局から受信し、
前記CSI−RSを用いて測定した前記CSIを、前記送信モジュールを通じて前記基地局に送信するように構成され、
前記CSI−RSがマップされた前記少なくとも一つのダウンリンクサブフレームは、少なくとも一つのCSI−RSサブフレーム設定によって設定され、前記少なくとも一つのCSI−RSサブフレーム設定はそれぞれ、所定の周期及び所定のオフセットを示し、
前記少なくとも一つのCSI−RSサブフレーム設定は、前記端末が0でない送信電力を仮定するCSI−RS、及び0の送信電力を仮定するCSI−RSに対して別々に設定される、端末。 - 前記CSI−RSに対して前記端末が0でない送信電力を仮定する前記一つのCSI−RS設定の前記CSI−RSは、CSIフィードバックのチャネル品質測定に用いられる、請求項1に記載の方法。
- 前記CSI−RSに対して前記端末が0の送信電力を仮定する少なくとも一つのCSI−RS設定の前記CSI−RSは、CSIフィードバックの干渉測定に用いられる、請求項1に記載の方法。
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US61/413,924 | 2010-11-15 | ||
PCT/KR2011/001833 WO2011115421A2 (en) | 2010-03-17 | 2011-03-16 | Method and apparatus for providing channel state information-reference signal (csi-rs) configuration information in a wireless communication system supporting multiple antennas |
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JP2016154362A (ja) * | 2011-05-13 | 2016-08-25 | エルジー エレクトロニクス インコーポレイティド | 無線通信システムにおけるcsi−rsに基づくチャネル推定方法及びそのための装置 |
US9742591B2 (en) | 2011-05-13 | 2017-08-22 | Lg Electronics Inc. | CSI-RS based channel estimating method in a wireless communication system and device for same |
US10200214B2 (en) | 2011-05-13 | 2019-02-05 | Lg Electronics Inc. | CSI-RS based channel estimating method in a wireless communication system and device for same |
US11153128B2 (en) | 2011-05-13 | 2021-10-19 | Lg Electronics Inc. | CSI-RS based channel estimating method in a wireless communication system and device for same |
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US20120287875A1 (en) | 2012-11-15 |
CN102696183A (zh) | 2012-09-26 |
US9509390B2 (en) | 2016-11-29 |
AU2011227860A2 (en) | 2013-01-10 |
AU2011227860B2 (en) | 2015-02-12 |
CA2784274C (en) | 2016-02-16 |
EP2548313A2 (en) | 2013-01-23 |
CA2784274A1 (en) | 2011-09-22 |
AU2011227860A1 (en) | 2012-06-07 |
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CN102696183B (zh) | 2016-01-13 |
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WO2011115421A3 (en) | 2012-01-12 |
JP2015146589A (ja) | 2015-08-13 |
JP2013527644A (ja) | 2013-06-27 |
US10135514B2 (en) | 2018-11-20 |
US20150155992A1 (en) | 2015-06-04 |
JP2016105659A (ja) | 2016-06-09 |
CN104780030B (zh) | 2018-11-09 |
JP6129374B2 (ja) | 2017-05-17 |
EP2548313B1 (en) | 2019-05-08 |
CN104780030A (zh) | 2015-07-15 |
KR20130050273A (ko) | 2013-05-15 |
US8989114B2 (en) | 2015-03-24 |
WO2011115421A2 (en) | 2011-09-22 |
US9236990B2 (en) | 2016-01-12 |
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US20170078011A1 (en) | 2017-03-16 |
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