JP6411367B2 - アドバンスト無線通信システムにおけるチャンネル状態情報フィードバック設計 - Google Patents
アドバンスト無線通信システムにおけるチャンネル状態情報フィードバック設計 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
- H04B7/0413—MIMO systems
- H04B7/0417—Feedback systems
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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
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
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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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
-
- 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
- H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
-
- 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
- H04B7/0636—Feedback format
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
Description
1)3GPP TS36.211 v11.2.0
2)3GPP TS36.212 v11.2.0
3)3GPP TS36.213 v11.2.0
4)3GPP TS36.331 v11.2.0
5)R1−125402、3GPP TS36.211 CR及び
6)R1−125404、3GPP TS36.213 CRに全体的に明示されたように本開示に含まれる。
したがって、アドバンスト無線通信システムにおける改善された通信技術及びスタンダードに対する必要性が存在する。
この送信されたRF信号は、無線チャンネルを通過した後にUE116に到着し、BS102での動作に対する逆動作が実行される。
このような例示的な例において、ノード400は、例えば、図1の無線システム100のような無線通信システムにおける通信ポイントでのデバイスである。一部の実施形態において、ノード400は、基地局(例えば、進化したノードB(eNB)、遠隔無線ヘッド(remote-radio head)、リレーステーション)、又はUE(例えば、移動端末機、加入者端末機など)であり得る。一実施形態において、ノード400は、図1のUE116の一実施形態の一例である。別の実施形態において、ノード400は、図1の基地局102の一実施形態の一例である。ノード400は、送信(transmit:TX)アンテナ405、送信(transmit:TX)処理回路410、受信(receive:RX)アンテナ415、受信(receive:RX)処理回路420、及び制御器425を含む。
例えば、上記TX及びRXアンテナアレイに含まれているアンテナは、オーバーラップされ得るか、一つ又はそれ以上のアンテナスイッチングメカニズム(switching mechanism)を介して送信及び受信のために使用される同一のアンテナアレイであり得る。
下記<表12>は、PUSCH CSI報告モードに対するCQI及びPMIフィードバックタイプを示している。
101,102,103,700 基地局(BS)
111,112,113,114,115,116 ユーザ端末機(UE)
120,125 カバレッジエリア
130 インターネット
200 送信経路回路
205 チャンネルコーディング及び変調ブロック
210 直列−並列(S−to−P)ブロック
215 逆高速フーリエ変換(IFFT)ブロック
220 並列−直列(P−to−S)ブロック
225 サイクリックプレフィックス付加ブロック
230 アップコンバータ(UC)
300 受信経路回路
255 ダウンコンバータ(DC)
260 サイクリックプレフィックス除去ブロック
265 直列−並列(S−to−P)ブロック
270 高速フーリエ変換(FFT)ブロック
275 並列−直列(P−to−S)ブロック
280 チャンネルデコーディング及び復調ブロック
400 ノード
405 送信(TX)アンテナ
410 送信(TX)処理回路
415 受信(RX)アンテナ
420 受信(RX)処理回路
425 制御器
500 送信ポイント
505 アンテナパネル
510 アンテナエレメント
515 アンテナエレメントの行
520 アンテナエレメントの列
Claims (10)
- 無線通信システムにおけるユーザ端末機(UE)がフィードバック情報を送信する方法であって、
高度に関するチャンネル状態情報基準信号(CSI−RS)の第1の集合及び方位に関するCSI−RSの第2の集合を受信するステップと、
前記高度に関するCSI−RSの第1の集合の受信電力と前記方位に関するCSI−RSの第2の集合に基づいて推定されたチャンネル行列とを使用してチャンネル品質指示子(CQI)を計算するステップと、
前記計算されたCQIを含むフィードバック情報を基地局に送信するステップと、を含むことを特徴とする方法。 - 無線通信システムにおける基地局(BS)がフィードバック情報を受信する方法であって、
電力の測定のための高度に関するチャンネル状態情報基準信号(CSI−RS)の第1の集合及びチャンネル行列の推定のための方位に関するCSI−RSの第2の集合を構成するステップと、
前記高度に関するCSI−RSの第1の集合及び前記方位に関するCSI−RSの第2の集合を送信するステップと、
チャンネル品質指示子(CQI)を含むフィードバック情報をユーザ端末機(UE)から受信するステップと、を含み、
前記高度に関するCSI−RSの第1の集合及び前記方位に関するCSI−RSの第2の集合は、前記CSI−RSを計算するために使用され、前記CQIは、前記高度に関するCSI−RSの第1の集合の受信電力と前記方位に関するCSI−RSの第2の集合に基づくチャンネル行列とを使用して計算されることを特徴とする方法。 - 前記CSI−RSの第2の集合に基づいて選択されるプリコーディング行列指示子(PMI)は、方位チャンネルと関連されたことを特徴とする請求項1又は2に記載の方法。
- 前記CSI−RSの第1の集合を含むN個のCSI−RSは、高度ドメインで前記N個の角度に対してステアされたビームで送信され、前記CSI−RSの第2の集合を含むM個のCSI−RSは、方位ドメインで同一の角度でステアされたビームで送信されることを特徴とする請求項1又は2に記載の方法。
- 無線通信システムにおけるフィードバック情報を送信するユーザ端末機(UE)装置であって、
送受信器と、
高度に関するチャンネル状態情報基準信号(CSI−RS)の第1の集合及び方位に関するCSI−RSの第2の集合を受信し、前記高度に関するCSI−RSの第1の集合の受信電力と前記方位に関するCSI−RSの第2の集合に基づいて推定されたチャンネル行列とを使用してチャンネル品質指示子(CQI)を計算し、前記計算されたCQIを含むフィードバック情報を基地局に送信することを制御するように構成された制御器と、を含むことを特徴とするUE装置。 - 無線通信システムにおけるフィードバック情報を受信する基地局(BS)装置であって、
送受信器と、
電力の測定のための高度に関するチャンネル状態情報基準信号(CSI−RS)の第1の集合及びチャンネル行列の推定のための方位に関するCSI−RSの第2の集合を構成し、前記高度に関するCSI−RSの第1の集合及び前記方位に関するCSI−RSの第2の集合を送信し、チャンネル品質指示子(CQI)を含むフィードバック情報をユーザ端末機(UE)から受信することを制御するように構成された制御器と、を含み、
前記高度に関するCSI−RSの第1の集合及び前記方位に関するCSI−RSの第2の集合は、前記CSI−RSを計算するために使用され、前記CQIは、前記高度に関するCSI−RSの第1の集合の受信電力と前記方位に関するCSI−RSの第2の集合に基づくチャンネル行列とを使用して計算されることを特徴とするBS装置。 - 前記CSI−RSの第2の集合に基づいて選択されるプリコーディング行列指示子(PMI)は、方位チャンネルと関連されたことを特徴とする請求項6又は7に記載の装置。
- 前記CSI−RSの第1の集合を含むN個のCSI−RSは、高度ドメインで前記N個の角度に対してステアされたビームで送信され、前記CSI−RSの第2の集合を含むM個のCSI−RSは、方位ドメインで同一の角度でステアされたビームで送信されることを特徴とする請求項6又は7に記載の装置。
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US201361750223P | 2013-01-08 | 2013-01-08 | |
US61/750,223 | 2013-01-08 | ||
US201361841066P | 2013-06-28 | 2013-06-28 | |
US61/841,066 | 2013-06-28 | ||
US14/149,436 US9178583B2 (en) | 2013-01-08 | 2014-01-07 | Channel state information feedback design in advanced wireless communication systems |
US14/149,436 | 2014-01-07 | ||
PCT/KR2014/000219 WO2014109557A1 (en) | 2013-01-08 | 2014-01-08 | Channel state information feedback design in advanced wireless communication systems |
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US (1) | US9178583B2 (ja) |
EP (1) | EP2944111B1 (ja) |
JP (1) | JP6411367B2 (ja) |
KR (1) | KR102151532B1 (ja) |
CN (1) | CN104885499B (ja) |
AU (1) | AU2014205792B2 (ja) |
WO (1) | WO2014109557A1 (ja) |
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