JP2013527644A - 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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Abstract
【解決手段】本発明の一実施例に係る方法は、前記CSI−RSに対して前記端末が0でない送信電力と仮定する一つのCSI−RS設定を含む一つ以上のCSI−RS設定に対する情報を送信するステップ(S1310)と、前記一つ以上のCSI−RS設定のうち、前記CSI−RSに対して前記端末が0の送信電力と仮定するCSI−RS設定を表す情報を送信するステップ(S1310)と、前記一つ以上のCSI−RS設定によって、CSI−RSをダウンリンクサブフレームの各リソース要素にマップするステップ(S1320)と、前記CSI−RSがマップされたダウンリンクサブフレームを送信するステップ(S1330)と、を含む。
【選択図】図13
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 (18)
- 複数アンテナ送信をサポートする基地局において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でない送信電力と仮定する一つのCSI−RS設定を含む一つ以上のCSI−RS設定に対する情報を、前記端末に送信するステップと、
前記基地局が、前記一つ以上のCSI−RS設定のうち、前記CSI−RSに対して前記端末が0の送信電力と仮定するCSI−RS設定を表す情報を、前記端末に送信するステップと、
前記基地局が、前記一つ以上のCSI−RS設定によって、CSI−RSをダウンリンクサブフレームの各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、
を有する方法。 - 前記一つ以上のCSI−RS設定は、前記CSI−RSがマップされる各リソース要素の位置を表す、請求項1に記載の方法。
- 前記CSI−RSがマップされるダウンリンクサブフレームは、所定の周期及び所定のオフセットによって設定される、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3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、前記端末が0でない送信電力及び0の送信電力と仮定するCSI−RSに対して別々に設定される、請求項3に記載の方法。
- 前記CSI−RSに対して前記端末が0の送信電力と仮定する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または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、前記一つ以上のCSI−RS設定のうち、前記端末のチャネル状態情報をフィードバックするためのCSI−RS設定を指示するステップをさらに含む、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でない送信電力と仮定する一つのCSI−RS設定を含む一つ以上のCSI−RS設定に対する情報を、前記基地局から受信するステップと、
前記端末が、前記一つ以上のCSI−RS設定のうち、前記CSI−RSに対して前記端末が0の送信電力と仮定するCSI−RS設定を表す情報を、前記基地局から受信するステップと、
前記端末が、前記一つ以上のCSI−RS設定によってCSI−RSが各リソース要素にマップされた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チャネル状態情報を、前記基地局に送信するステップと、
を有する方法。 - 前記一つ以上のCSI−RS設定は、前記CSI−RSがマップされる各リソース要素の位置を表す、請求項9に記載の方法。
- 前記CSI−RSがマップされるダウンリンクサブフレームは、所定の周期及び所定のオフセットによって設定される、請求項9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11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、前記端末が0でない送信電力及び0の送信電力と仮定するCSI−RSに対して別々に設定される、請求項11に記載の方法。
- 前記CSI−RSに対して前記端末が0の送信電力と仮定する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9に記載の方法。
- 前記CSI−RSは、1、2、4または8個のアンテナポートに対して送信される、請求項9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、前記一つ以上のCSI−RS設定のうち、前記端末のチャネル状態情報をフィードバックするためのCSI−RS設定が指示されるステップをさらに含む、請求項9に記載の方法。
- 複数アンテナ送信に対する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含む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でない送信電力と仮定する一つのCSI−RS設定を含む一つ以上のCSI−RS設定に対する情報を、前記送信モジュールを通じて前記端末に送信し、
前記一つ以上のCSI−RS設定のうち、前記CSI−RSに対して前記端末が0の送信電力と仮定するCSI−RS設定を表す情報を、前記送信モジュールを通じて前記端末に送信し、
前記一つ以上のCSI−RS設定によって、CSI−RSをダウンリンクサブフレームの各リソース要素にマップし、
前記CSI−RSがマップされた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含む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でない送信電力と仮定する一つのCSI−RS設定を含む一つ以上の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、
前記一つ以上のCSI−RS設定のうち、前記CSI−RSに対して前記端末が0の送信電力と仮定するCSI−RS設定を表す情報を、前記受信モジュールを通じて前記基地局から受信し、
前記一つ以上のCSI−RS設定によって、CSI−RSが各リソース要素にマップされた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チャネル状態情報を、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る、端末。
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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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AU2011227860A1 (en) | 2012-06-07 |
KR20130050273A (ko) | 2013-05-15 |
WO2011115421A2 (en) | 2011-09-22 |
KR101835328B1 (ko) | 2018-04-19 |
CN104780030B (zh) | 2018-11-09 |
CA2784274C (en) | 2016-02-16 |
CN104780030A (zh) | 2015-07-15 |
US20120287875A1 (en) | 2012-11-15 |
CA2784274A1 (en) | 2011-09-22 |
WO2011115421A3 (en) | 2012-01-12 |
US9236990B2 (en) | 2016-01-12 |
US20170078011A1 (en) | 2017-03-16 |
CN102696183B (zh) | 2016-01-13 |
US8989114B2 (en) | 2015-03-24 |
CN102696183A (zh) | 2012-09-26 |
JP5711277B2 (ja) | 2015-04-30 |
AU2011227860B2 (en) | 2015-02-12 |
US20150155992A1 (en) | 2015-06-04 |
EP2548313B1 (en) | 2019-05-08 |
JP5902841B2 (ja) | 2016-04-13 |
JP6129374B2 (ja) | 2017-05-17 |
AU2011227860A2 (en) | 2013-01-10 |
EP2548313A4 (en) | 2016-09-28 |
EP2548313A2 (en) | 2013-01-23 |
US9509390B2 (en) | 2016-11-29 |
JP2015146589A (ja) | 2015-08-13 |
US10135514B2 (en) | 2018-11-20 |
JP2016105659A (ja) | 2016-06-09 |
US20160094287A1 (en) | 2016-03-31 |
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