JP2013535928A - 無線通信システムにおける基準信号送受信方法及び装置 - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
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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
- H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
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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
- 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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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
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Abstract
Description
520 コントローラ
520A 基準信号パターン決定部
520B 基準信号パターンミューティング決定部
520C フィードバック情報処理部
520D 送信電力制御部
610 送受信部
620 コントローラ
620A 基準信号抽出部
620B チャネル推定部
620C フィードバック情報生成部
Claims (20)
- 移動通信システムで基地局の基準信号送信方法であって、
少なくとも一つのリソース要素(resource element)で構成される基準信号パターンを決定する決定ステップと、
前記少なくとも一つのリソース要素を単位にして、前記基準信号の0送信電力の設定有無を指示するビットマップ指示子を生成する生成ステップと、
前記基準信号パターンとビットマップ指示子を端末に送信する送信ステップと、
を含むことを特徴とする基準信号送信方法。 - 前記生成ステップは、
前記端末に対して0ではない送信電力(non−zero transmission power)に設定するリソース要素に対しては、前記0送信電力に設定しないことを特徴とする請求項1に記載の基準信号送信方法。 - 前記決定ステップは、
4個のリソース要素で構成される基準信号パターンを決定することを特徴とする請求項1に記載の基準信号送信方法。 - 前記生成ステップは、
4個のリソース要素を単位にして、前記基準信号の0送信電力の設定有無を指示するビットマップ指示子を生成することを特徴とする請求項1に記載の基準信号送信方法。 - 前記基準信号は、
チャネル状態情報基準信号(Channel State Information Reference Signal、CSI−RS)であることを特徴とする請求項1に記載の基準信号送信方法。 - 移動通信システムで基準信号を送信する基地局であって、
少なくとも一つのリソース要素で構成される基準信号パターンを決定する基準信号パターン決定部と、
前記少なくとも一つのリソース要素を単位にして、前記基準信号の0送信電力の設定有無を指示するビットマップ指示子を生成する基準信号パターンミューティング決定部と、
前記基準信号パターンとビットマップ指示子を端末に送信する送受信部と、
を含むことを特徴とする基地局。 - 前記基準信号パターンミューティング決定部は、
前記端末に対して0ではない送信電力に設定するリソース要素に対しては、前記0送信電力に設定しないことを特徴とする請求項6に記載の基地局。 - 前記基準信号パターン決定部は、
4個のリソース要素で構成される基準信号パターンを決定することを特徴とする請求項6に記載の基地局。 - 前記基準信号パターンミューティング決定部は、
4個のリソース要素を単位にして、前記基準信号の0送信電力の設定有無を指示するビットマップ指示子を生成することを特徴とする請求項6に記載の基地局。 - 前記基準信号は、
チャネル状態情報基準信号であることを特徴とする請求項6に記載の基地局。 - 移動通信システムで基地局から送信される基準信号を受信して処理する端末の基準信号処理方法であって、
基地局から、少なくとも一つのリソース要素で構成される基準信号パターンを受信する基準信号パターン受信ステップと、
前記少なくとも一つのリソース要素を単位にして、前記基準信号の0送信電力の設定有無を指示するビットマップ指示子を受信するビットマップ指示子受信ステップと、
前記受信した基準信号パターン及びビットマップ指示子により基準信号を抽出して処理する処理ステップと、
を含むことを特徴とする基準信号処理方法。 - 前記処理ステップは、
前記基地局により、前記端末に対して0ではない送信電力に設定されたリソース要素に対しては、前記0送信電力で処理しないことを特徴とする請求項11に記載の基準信号処理方法。 - 前記基準信号パターンは、
4個のリソース要素で構成される基準信号パターンであることを特徴とする請求項11に記載の基準信号処理方法。 - 前記ビットマップ指示子は、
4個のリソース要素を単位にして、前記基準信号の0送信電力の設定有無を指示することを特徴とする請求項11に記載の基準信号処理方法。 - 前記基準信号は、
チャネル状態情報基準信号であることを特徴とする請求項11に記載の基準信号処理方法。 - 移動通信システムで基地局から送信される基準信号を受信して処理する端末であって、
基地局と信号を送受信する送受信部と、
前記送受信部を通じて基地局から少なくとも一つのリソース要素で構成される基準信号パターンと、前記少なくとも一つのリソース要素を単位にして、前記基準信号の0送信電力の設定有無を指示するビットマップ指示子を受信するように制御し、前記受信した基準信号パターン及びビットマップ指示子により基準信号を抽出して処理するコントローラと、
を含むことを特徴とする端末。 - 前記コントローラは、
前記基地局により、前記端末に対して0ではない送信電力に設定されたリソース要素に対しては、前記0送信電力で処理しないことを特徴とする請求項16に記載の端末。 - 前記基準信号パターンは、
4個のリソース要素で構成される基準信号パターンであることを特徴とする請求項16に記載の端末。 - 前記ビットマップ指示子は、
4個のリソース要素を単位にして、前記基準信号の0送信電力の設定有無を指示することを特徴とする請求項16に記載の基準信号処理方法。 - 前記基準信号は、
チャネル状態情報基準信号であることを特徴とする請求項16に記載の基準信号処理方法。
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PCT/KR2011/005906 WO2012021008A2 (en) | 2010-08-13 | 2011-08-11 | Method and apparatus for transmitting and receiving reference signal in wireless communication system |
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AU2011289976A1 (en) | 2012-12-20 |
ES2449375T3 (es) | 2014-03-19 |
CA2808063C (en) | 2018-05-29 |
RU2015133864A (ru) | 2018-12-24 |
RU2684174C2 (ru) | 2019-04-04 |
JP6006209B2 (ja) | 2016-10-12 |
US9806864B2 (en) | 2017-10-31 |
US8948076B2 (en) | 2015-02-03 |
EP2418894B1 (en) | 2013-12-18 |
EP2418894A1 (en) | 2012-02-15 |
PT2418894E (pt) | 2014-03-10 |
RU2563583C2 (ru) | 2015-09-20 |
RU2015133864A3 (ja) | 2019-02-05 |
CN103053122B (zh) | 2016-02-10 |
EP2696626B1 (en) | 2018-02-14 |
RU2013105754A (ru) | 2014-08-20 |
JP6254223B2 (ja) | 2017-12-27 |
ZA201301270B (en) | 2014-04-30 |
US20120039282A1 (en) | 2012-02-16 |
EP2696626A1 (en) | 2014-02-12 |
CA2808063A1 (en) | 2012-02-16 |
CN103053122A (zh) | 2013-04-17 |
WO2012021008A2 (en) | 2012-02-16 |
US20150124753A1 (en) | 2015-05-07 |
PL2418894T3 (pl) | 2014-05-30 |
CN105682185B (zh) | 2019-03-26 |
KR20120015797A (ko) | 2012-02-22 |
KR101671287B1 (ko) | 2016-11-01 |
WO2012021008A3 (en) | 2012-05-24 |
DK2418894T3 (en) | 2014-03-10 |
CN105682185A (zh) | 2016-06-15 |
JP2016167884A (ja) | 2016-09-15 |
AU2011289976B2 (en) | 2016-02-04 |
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