JP6614973B2 - ミリ波システムにおけるチャネル微細調整及び多重ストリーム送信をサポートするための方法及び装置 - Google Patents
ミリ波システムにおけるチャネル微細調整及び多重ストリーム送信をサポートするための方法及び装置 Download PDFInfo
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- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
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- H04B7/00—Radio transmission systems, i.e. using radiation field
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- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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Description
101 基地局
102 移動局
103 基地局
111〜116 移動局
120、125 カバレッジ領域
130 ネットワーク
205 チャネルコーディング及び変調ブロック
210 直列−並列ブロック
215 IFFTブロック
220 並列−直列ブロック
225 CP追加ブロック
230 アップコンバータ
250 受信経路
255 ダウンコンバータ
260 CP除去ブロック
265 直列−並列ブロック
270 FFTブロック
275 並列−直列ブロック
280 チャネルデコーディング及び復調ブロック
305 アンテナ
310 トランシーバ
315 送信処理回路
320 マイク
325 受信処理回路
330 スピーカ
340 メインプロセッサ
345 入出力インタフェース
350 キーパッド
355 ディスプレイ
360 メモリ
501 基地局
502 アンテナアレイ
503 移動局
504 アンテナアレイ
602 デジタルチェーン
608 ビームフォーミング部
702 デジタルチェーン
704 アンテナアレイ
902 送信機
904 受信機
1002 基地局
1004 移動局
1302 移動局
1304 移動局
1402 移動局
1404 基地局
1502 送信機
1504 受信機
Claims (24)
- 無線通信システムでの端末の動作方法において、
基地局から送信される共通(common)基準信号(reference signal)を複数の受信ビームによって受信する段階と、
前記基地局に前記共通基準信号に基づいて決定された第1チャンネル情報を送信する段階と、
前記基地局に追加的な基準信号要求を送信する段階と、
前記基地局から前記追加的な基準信号要求に対応して送信される端末特定(specific)基準信号を前記複数の受信ビームのうち一部によって受信する段階と、
前記基地局に前記端末特定基準信号に基づいて決定された第2チャンネル情報を送信する段階と、を含み、
前記複数の受信ビームのうち一部は、前記第1チャンネル情報に基づいて決定されることを特徴とする端末の動作方法。 - 前記第2チャンネル情報は、前記端末と前記基地局との間の各チャネルに対する推定された到来角、出射角及びチャネル利得を含むことを特徴とする請求項1に記載の端末の動作方法。
- 前記第1チャンネル情報は、ランクパラメータを含み、
前記第2チャンネル情報は、基底帯域プリコーダ及びチャネル状態情報を含むチャネルパラメータを含むことを特徴とする請求項1に記載の端末の動作方法。 - 無線通信システムでの基地局において、
送受信機と、
前記送受信機と機能的に結合された少なくとも1つのプロセッサーと、を含み、
前記少なくとも1つのプロセッサーは、複数の送信ビームによって共通(common)基準信号(reference signal)を端末に送信し、前記端末から前記共通基準信号に基づいて決定された第1チャンネル情報を受信し、前記端末から追加的な基準信号要求を受信し、前記追加的な基準信号要求に対応して前記複数の送信ビームのうち一部によって前記端末に端末特定(specific)基準信号を送信し、前記端末から前記端末特定基準信号に基づいて決定された第2チャンネル情報を受信するように制御し、
前記複数の送信ビームのうち一部は、前記第1チャンネル情報に基づいて決定されることを特徴とする基地局。 - 前記第2チャンネル情報は、前記端末と前記基地局との間の各チャネルに対する推定された到来角、出射角及びチャネル利得を含むことを特徴とする請求項4に記載の基地局。
- 前記第1チャンネル情報は、ランクパラメータを含み、
前記第2チャンネル情報は、基底帯域プリコーダ及びチャネル状態情報を含むチャネルパラメータを含むことを特徴とする請求項4に記載の基地局。 - 前記第1チャンネル情報は、少なくとも1つの選好ビームインデックスを含むことを特徴とする請求項1に記載の端末の動作方法。
- 前記端末特定基準信号は、チャネルで短期(short term)変動を推定するために送信されることを特徴とする請求項7に記載の端末の動作方法。
- 前記端末特定基準信号は、多重ストリーム(multiple stream)の送信に使用される基底帯域プリコーディングを推定するために送信されることを特徴とする請求項1に記載の端末の動作方法。
- 前記第1チャンネル情報は、少なくとも1つの選好ビームインデックスを含むことを特徴とする請求項4に記載の基地局。
- 前記端末特定基準信号は、チャネルで短期(short term)変動を推定するために送信されることを特徴とする請求項4に記載の基地局。
- 前記端末特定基準信号は、多重ストリーム(multiple stream)の送信に使用される基底帯域プリコーディングを推定するために送信されることを特徴とする請求項4に記載の基地局。
- 無線通信システムでの端末装置において、
送受信機と、
前記送受信機と機能的に結合された少なくとも1つのプロセッサーを含み、
前記少なくとも1つのプロセッサーは、基地局から送信される共通(common)基準信号(reference signal)を複数の受信ビームによって受信し、前記基地局に前記共通基準信号に基づいて決定された第1チャンネル情報を送信し、前記基地局に追加的な基準信号要求を送信し、前記基地局から前記追加的な基準信号要求に対応して送信される端末特定(specific)基準信号を前記複数の受信ビームのうち一部によって受信し、前記基地局に前記端末特定基準信号に基づいて決定された第2チャンネル情報を送信するように制御し、
前記複数の受信ビームのうち一部は、前記第1チャンネル情報に基づいて決定されることを特徴とする端末装置。 - 前記第2チャンネル情報は、前記端末装置と前記基地局との間の各チャネルに対する推定された到来角、出射角及びチャネル利得を含むことを特徴とする請求項13に記載の端末装置。
- 前記第1チャンネル情報は、ランクパラメータを含み、
前記第2チャンネル情報は、基底帯域プリコーダ及びチャネル状態情報を含むチャネルパラメータを含むことを特徴とする請求項13に記載の端末装置。 - 前記第1チャンネル情報は、少なくとも1つの選好ビームインデックスを含むことを特徴とする請求項13に記載の端末装置。
- 前記端末特定基準信号は、チャネルで短期(short term)変動を推定するために送信されることを特徴とする請求項16に記載の端末装置。
- 前記端末特定基準信号は、多重ストリーム(multiple stream)の送信に使用される基底帯域プリコーディングを推定するために送信されることを特徴とする請求項13に記載の端末装置。
- 無線通信システムで基地局の動作方法において、
複数の送信ビームによって共通(common)基準信号(reference signal)を端末に送信する段階と、
前記端末から前記共通基準信号に基づいて決定された第1チャンネル情報を受信する段階と、
前記端末から追加的な基準信号要求を受信する段階と、
前記追加的な基準信号要求に対応して前記複数の送信ビームのうち一部によって前記端末に端末特定基準信号を送信する段階と、
前記端末から前記端末特定基準信号に基づいて決定された第2チャンネル情報を受信する段階と、を含み、
前記複数の送信ビームのうち一部は、前記第1チャンネル情報に基づいて決定されることを特徴とする基地局の動作方法。 - 前記第2チャンネル情報は、前記端末と前記基地局との間の各チャネルに対する推定された到来角、出射角及びチャネル利得を含むことを特徴とする請求項19に記載の基地局の動作方法。
- 前記第1チャンネル情報は、ランクパラメータを含み、
前記第2チャンネル情報は、基底帯域プリコーダ及びチャネル状態情報を含むチャネルパラメータを含むことを特徴とする請求項19に記載の基地局の動作方法。 - 前記第1チャンネル情報は、少なくとも1つの選好ビームインデックスを含むことを特徴とする請求項19に記載の基地局の動作方法。
- 前記端末特定基準信号は、チャネルで短期(short term)変動を推定するために送信されることを特徴とする請求項19に記載の基地局の動作方法。
- 前記端末特定基準信号は、多重ストリーム(multiple stream)の送信に使用される基底帯域プリコーディングを推定するために送信されることを特徴とする請求項19に記載の基地局の動作方法。
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US201261682679P | 2012-08-13 | 2012-08-13 | |
US61/682,679 | 2012-08-13 | ||
US13/963,746 US9439096B2 (en) | 2012-08-13 | 2013-08-09 | Method and apparatus to support channel refinement and multi-stream transmission in millimeter wave systems |
US13/963,746 | 2013-08-09 | ||
PCT/KR2013/007287 WO2014027824A1 (en) | 2012-08-13 | 2013-08-13 | Method and apparatus to support channel refinement and multi-stream transmission in millimeter wave systems |
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CN102916735B (zh) * | 2012-10-17 | 2016-06-08 | 东南大学 | 利用大规模天线阵列的无线通信方法 |
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