JP2011509571A - 協調多重入出力方式の信号送受信方法 - Google Patents
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Abstract
【選択図】図3
Description
Claims (15)
- 端末が協調多重入出力(Co-MIMO)方式で信号を受信する方法であって、
サービング基地局及び該サービング基地局と共に前記協調多重入出力方式を行い、一つ以上の隣接基地局を含む協調基地局からのチャンネル信号を測定するステップと、
前記協調基地局のそれぞれに関するプリコーディング行列インデックス(PMI)を決定して前記サービング基地局に報告するステップと、
前記協調基地局から同一の信号または独立した信号を受信するステップと、
を含む、協調多重入出力方式の信号受信方法。 - 前記協調基地局のそれぞれに関するプリコーディング行列インデックス(PMI)は、システムであらかじめ決定されたコードブックに基づいて選択される、請求項1に記載の協調多重入出力方式の信号受信方法。
- 前記協調基地局のそれぞれに関するプリコーディング行列インデックス(PMI)は、
前記端末が前記協調基地局のそれぞれから同一の信号または独立した信号を協調して受信する場合、多重セルダイバーシティ利得または多重セルマルチプレキシング利得を最大限に獲得するプリコーディング行列インデックスを、前記端末が各協調基地局ごとに決定したものである、請求項1に記載の協調多重入出力方式の信号受信方法。 - 前記協調基地局のそれぞれに関するプリコーディング行列インデックス(PMI)は、
前記端末が前記協調基地局のそれぞれから同一の信号または独立した信号を協調して受信する場合、前記端末が各協調基地局ごとに多重セルダイバーシティ利得または多重セルマルチプレキシング利得を最大限に獲得するプリコーディング行列インデックスから順次に所定個数を決定したものである、請求項1に記載の協調多重入出力方式の信号受信方法。 - 前記協調基地局は、互いに前記端末に関するリソース割当情報を共有して、前記端末に同一の信号または独立した信号を共通のリソースを用いて伝送する、請求項1に記載の協調多重入出力方式の信号受信方法。
- 前記サービング基地局に報告された前記協調基地局のそれぞれに関するプリコーディング行列インデックス(PMI)は、前記サービング基地局からネットワーク間インターフェースを通じて前記協調基地局のそれぞれに伝達される、請求項1に記載の協調多重入出力方式の信号受信方法。
- 前記協調基地局が多重セルダイバーシティモードで動作する場合、前記端末は、前記協調基地局から同一の信号を受信する、請求項1に記載の協調多重入出力方式の信号受信方法。
- 前記協調基地局が多重セルマルチプレキシングモードで動作する場合、前記端末は、前記協調基地局から独立した信号を受信する、請求項1に記載の協調多重入出力方式の信号受信方法。
- 特定基地局が協調多重入出力(Co-MIMO)方式で信号を伝送する方法であって、
前記協調多重入出力方式で信号を受信する端末から、前記特定基地局及び前記特定基地局と共に前記協調多重入出力方式を行うための一つ以上の隣接基地局を含む協調基地局のそれぞれに関するプリコーディング行列インデックス(PMI)を受信するステップと、
前記協調基地局のそれぞれに関するプリコーディング行列インデックスを、前記一つ以上の隣接基地局にネットワーク間インターフェースを通じて伝達するステップと、
前記一つ以上の隣接基地局と共に前記端末に同一の信号または独立した信号を伝送するステップと、
を含む、協調多重入出力方式の信号伝送方法。 - 前記協調基地局のそれぞれに関するプリコーディング行列インデックス(PMI)は、システムであらかじめ決定されたコードブックに基づいて選択される、請求項9に記載の協調多重入出力方式の信号伝送方法。
- 前記協調基地局のそれぞれに関するプリコーディング行列インデックス(PMI)は、
前記端末が前記協調基地局のそれぞれから同一の信号または独立した信号を協調して受信する場合、多重セルダイバーシティ利得または多重セルマルチプレキシング利得を最大限に獲得するプリコーディング行列インデックスを、前記端末が各協調基地局ごとに決定したものである、請求項9に記載の協調多重入出力方式の信号伝送方法。 - 前記協調基地局のそれぞれに関するプリコーディング行列インデックス(PMI)は、
前記端末が前記協調基地局のそれぞれから同一の信号または独立した信号を協調して受信する場合、前記端末が各協調基地局ごとに多重セルダイバーシティ利得または多重セルマルチプレキシング利得を最大限に獲得するプリコーディング行列インデックスから順次に所定個数を決定したものである、請求項9に記載の協調多重入出力方式の信号伝送方法。 - 前記協調基地局は、互いに前記端末に関するリソース割当情報を共有して、前記端末に同一の信号または独立した信号を共通のリソースを用いて伝送する、請求項9に記載の協調多重入出力方式の信号伝送方法。
- 前記協調基地局が多重セルダイバーシティモードで動作する場合、前記特定基地局は、前記一つ以上の隣接基地局と同一の信号を前記端末に伝送する、請求項9に記載の協調多重入出力方式の信号伝送方法。
- 前記協調基地局が多重セルマルチプレキシングモードで動作する場合、前記特定基地局は、前記一つ以上の隣接基地局と独立した信号を前記端末に伝送する、請求項9に記載の協調多重入出力方式の信号伝送方法。
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JP2016015751A (ja) * | 2011-05-05 | 2016-01-28 | クゥアルコム・インコーポレイテッドQualcomm Incorporated | 増強されたセル間干渉調整におけるハンドオーバ中、ue干渉を判定すること |
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JP2017530612A (ja) * | 2014-08-20 | 2017-10-12 | ゼットティーイー コーポレーションZte Corporation | マルチセルビームフォーミング方法および装置 |
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