JP2015510720A - 非周期的チャンネル状態情報に対する多重プロセスの報告 - Google Patents
非周期的チャンネル状態情報に対する多重プロセスの報告 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—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
- 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
- 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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- H—ELECTRICITY
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- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2612—Arrangements for wireless medium access control, e.g. by allocating physical layer transmission capacity
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- H—ELECTRICITY
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- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2603—Arrangements for wireless physical layer control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- H—ELECTRICITY
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
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- H04L1/0028—Formatting
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- H—ELECTRICITY
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
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- H—ELECTRICITY
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- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
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- H04L5/0094—Indication of how sub-channels of the path are allocated
Abstract
Description
220 マルチプレクサ
230 ユニット
240 サブ−キャリアマッピングユニット
260 ユニット
280 タイムウィンドーイングユニット
300 受信機
320 タイムウィンドーイングユニット
330 除去ユニット
340 高速フーリエ変換(Fast Fourier Transform;FFT)ユニット
350 サブ−キャリアデマッピングユニット
360 受信帯域幅用制御器
370 (Inverse DFT)ユニット
370 ユニット
Claims (13)
- 通信システムにおけるチャンネル状態情報(CSI)を送信する方法であって、
前記CSIは報告モードを具備し、ULセルで物理的アップリンク(UL)共有チャンネル(PUSCH)送信を通じてユーザ端末(UE)から送信され、前記ULセルはダウンリンク(DL)セルと関連し、前記PUSCH送信は前記UEによるCSI送信を表示するCSI要請フィールドを含むダウンリンク制御情報(DCI)フォーマットの受信に対する応答であり、前記CSIは各々の基準信号の測定と各々関連したCSIプロセスセットのうちの1つに対応し、前記方法は、
前記CSI要請フィールドからCSI送信に対するCSIプロセスセットの表示を獲得するステップと、
前記CSI要請フィールドにより表示されたCSIプロセスセットに対するCSIを送信するステップとを含み、
前記CSI要請フィールドは第1解釈のセットを有する2ビットの第1のCSIプロセスセットを含み、
前記2ビットの第1のCSIプロセスセットにおいて、前記第1解釈のセットは‘00’の2ビット値はCSI送信が無いことを示し、‘01’の2ビット値はDLセルに対応するCSIプロセスセットに対するCSI送信を示し、‘10’の2ビット値は第1のCSIプロセスセットに対するCSI送信を示し、‘11’の2ビット値は第2のCSIプロセスセットに対するCSI送信を示す、方法。 - 前記第1のCSIプロセスセット及び前記第2のCSIプロセスセットは、上位階層シグナリングを通じて基地局によりUEに対して設定される、請求項1に記載の方法。
- 前記報告モードは、前記第1のCSIプロセスセットに対する上位階層シグナリングを通じて前記基地局によりUEに対して設定され、前記第2のCSIプロセスセットに対する報告モードは、前記第1のCSIプロセスセットに対する報告モードと同一である、請求項2に記載の方法。
- 前記DCIフォーマット内のCSI要請フィールドは、前記UEが単一のCSIプロセスを有する場合、第2解釈のセットを有し、前記第2解釈のセットは前記第1解釈のセットと共通の少なくとも2つの解釈を有する、請求項1に記載の方法。
- 前記第1のCSIプロセスセットに対するCSIは第1ペイロード(payload)を有し、前記第2のCSIプロセスセットに対するCSIは第2ペイロードを有する、請求項1に記載の方法。
- 前記UEは複数の送信ポイントから、及び複数の帯域幅でデータを受信し、前記第1のCSIプロセスセットは第1個数の前記複数の送信ポイントまたは前記複数の帯域幅の各々に対するCSIを提供し、前記第2のCSIプロセスセットは第2個数の前記複数の送信ポイント、または前記複数の帯域幅の各々に対するCSIを提供する、請求項1に記載の方法。
- 通信システムにおけるチャンネル状態情報(CSI)を送信する方法であって、
前記CSIは報告モードを具備し、物理的アップリンク共有チャンネル(PUSCH)送信を通じてユーザ端末(UE)から送信され、前記PUSCH送信は前記UEによるCSI送信を表示するCSI要請フィールドを含むダウンリンク制御情報(DCI)フォーマットの受信に対する応答であり、前記方法は、
前記CSIが基準信号の測定と関連した単一のCSIプロセスに関するものである場合、第1ビットで前記CSI要請フィールドを表すステップと、
前記CSIが複数のCSIプロセスセットのうちから選択された少なくとも1つのCSIプロセスセットに関するものである場合、第2ビットで前記CSI要請フィールドを表すステップとを含み、
前記各々のCSIプロセスセットは各々の基準信号の測定と関連し、また、
前記少なくとも1つのCSIプロセスセットの選択は、前記CSI要請フィールド値に基づき、前記第2ビットは前記第1ビットより大きい、方法。 - CSI報告状態が前記第1ビットにより表した前記CSI要請フィールドにより表され、前記第1ビットにより表した前記CSI要請フィールドにより表されたCSI報告状態は、前記第2ビットにより表した前記CSI要請フィールドにより表されたCSI報告状態のサブセットである、請求項7に記載の方法。
- 前記第2ビットは、前記DCIフォーマット内の前記CSI要請フィールドに対するサイズ増加により獲得される、請求項7に記載の方法。
- 前記第2ビットは、前記PUSCHで基準信号を送信するために前記UEが使用する循環シフト(cyclic shift)及び直交カバーリングコード(orthogonal covering code)を表示する前記DCIフォーマット内のフィールドのうちから前記第2ビットと前記第1ビットとの間の差と同一なビットの数を再解釈することにより獲得される、請求項7に記載の方法。
- 第2ビットを有する前記CSI要請フィールドは1つより多いCSIプロセスのセットに対するものである、請求項7に記載の方法。
- 請求項1から6のいずれか一項の方法を遂行するように構成された、ユーザ端末(UE)装置。
- 請求項7から11のいずれか一項の方法を遂行するように構成された、ユーザ端末(UE)装置。
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US201261591546P | 2012-01-27 | 2012-01-27 | |
US61/591,546 | 2012-01-27 | ||
PCT/KR2013/000674 WO2013112024A1 (en) | 2012-01-27 | 2013-01-28 | Reporting of multiple processes for aperiodic channel state information |
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EP (1) | EP2807867B1 (ja) |
JP (1) | JP6851709B2 (ja) |
KR (1) | KR20140119055A (ja) |
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CN104081827A (zh) | 2014-10-01 |
US9553648B2 (en) | 2017-01-24 |
CN104081827B (zh) | 2018-04-13 |
EP2807867A1 (en) | 2014-12-03 |
EP2807867A4 (en) | 2015-12-16 |
US20150244443A1 (en) | 2015-08-27 |
US20130195045A1 (en) | 2013-08-01 |
US9019856B2 (en) | 2015-04-28 |
EP2807867B1 (en) | 2022-04-20 |
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KR20140119055A (ko) | 2014-10-08 |
WO2013112024A1 (en) | 2013-08-01 |
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