JP2015509305A - 直交周波数分割多重システムにおける基準シンボル送信のための装置及び方法 - Google Patents
直交周波数分割多重システムにおける基準シンボル送信のための装置及び方法 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
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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
- H04B7/0697—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 spatial multiplexing
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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
- H04B7/0617—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 for beam forming
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0204—Channel estimation of multiple channels
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
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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
Abstract
Description
d)ことができる。特定の単語及び句に対する定義は、本明細書全般にわたって提供されるものであって、当業者であれば、ほとんどの場合ではないとしても、多くの場合、そのように定義された単語及び句の今後の使用だけでなく、従来にも適用されるということを理解すべきである。
、このような発展の推移は窮極的にはミリ波RFICを用いた広い距離における通信を可能にするはずである。
Mシンボル515の副搬送波帯域幅は普通のOFDMシンボル505の副搬送波帯域幅の4倍である。
の実施形態において、このような情報は受信機に送信されず、事前に協議される、又は暗黙的に使用され得る。
215 ビームフォーミング部
900 送信機
1000 送信機
1110 送信インスタンス
1300 送信機
1310 CSI−RS送信ロジック
1315 N/m IFFTブロック
1320 スイッチ
1325 サイクリックプレフィックスブロック
1330 符号化ブロック
1335 直並列変換器
1340 N IFFTブロック
1345 第2直並列変換器
1350 並直列変換器
1355 デジタル−アナログ変換器
1360 RF処理部
1600 移動端末
1605 基底帯域+RF処理ブロック
1610 ビームフォーミング部
1615 アンテナアレイ
1620 RF処理ブロック
1630 直並列変換器
1635 サイクリックプレフィックス除去ブロック
1640 CSI−RS復号化ロジック
1645 スイッチ
1665 チャネル推定ブロック
1670 並直列変換器
1675 復調及び復号ブロック
1680 構成情報メッセージ
BS200 送信機
MS 移動端末
Claims (14)
- 無線通信ネットワークに使用するための、ビームフォーミング技法を使用して複数の加入者端末と通信できる基地局において、
N個の空間ビームを送信するように構成された複数のアンテナアレイ;及び
前記複数のアンテナアレイのうち各アレイに接続されたNRF個の無線周波数(radio frequency、RF)処理チェーンを含み、ここで、空間ビームの数NはRF処理チェーンの数NRFより大きい基地局。 - 無線通信ネットワークに使用するためのビームフォーミングのための方法において、
N個の空間ビームをNRF個の無線周波数(radio frequency、RF)処理チェーンを用いて送信する段階を含み、ここで、空間ビームの数NはRF処理チェーンの数NRFより大きい方法。 - 無線通信ネットワークに使用するためのビームフォーミング技法を使用して少なくとも1つの基地局と通信できる加入者端末において、
M個の空間ビームを受信するように構成された複数のアンテナアレイ;及び
前記複数のアンテナアレイのうち各アレイに結合されたMRF個の無線周波数(RF)処理チェーンを含み、ここで、空間ビームの数MはRF処理チェーンの数MRFより大きい加入者端末。 - 前記送信する段階は、前記RF処理チェーンのうち第1チェーンによって、他のRF処理チェーンによって使用されない副搬送波リソースを介して特定の空間ビームに対応する基準シンボルを伝達する段階を含む請求項1に記載の基地局又は請求項2に記載の方法。
- 前記送信する段階は、前記NRF個のRF処理チェーンそれぞれによって、少なくともN/NRF回の時間インスタンス(intance)で、互いに異なる空間ビームを送信する段階を含み、
前記少なくともN/NRF回の時間インスタンス(instance)で前記互いに異なる空間ビームを送信する段階は、互いに異なる方向に送信する段階を含む請求項1に記載の基地局又は請求項2に記載の方法。 - 前記少なくとも1つのRFチェーンによって、基準シンボルを伝達するOFDMシンボルの区間(duration)がデータ送信のためのシンボルの区間より短くなる、基準シンボルを伝達するシンボルの区間を減少させる段階をさらに含む請求項1に記載の基地局又は請求項2に記載の方法。
- 前記RF処理チェーンのうち第1チェーンは他のRF処理チェーンによって使用されない副搬送波リソースを介して特定の空間ビームに対応する基準シンボルを受信するように構成された請求項3に記載の加入者端末。
- 前記MRF個のRF処理チェーンは少なくともM/MRF回のインスタンス(instance)で互いに異なる空間ビームを受信するように構成され、
前記MRF個のRF処理チェーンは前記加入者端末と前記少なくとも1つの基地局との間の無線チャネルを推定するために前記互いに異なる空間ビームを介して受信された基準シンボルを使用するように構成された請求項3に記載の加入者端末。 - 少なくともN/NRF回の時間インスタンス(instance)で前記互いに異なる空間ビームは前記少なくとも1つの基地局によって互いに異なる方向に送信された請求項8に記載の加入者端末。
- 少なくとも1つのシンボルは受信された基準シンボルを伝達する短いシンボルを含み、前記短いシンボルはデータ送信のためのシンボルの区間より短い区間を有する請求項3に記載の加入者端末。
- 前記基準シンボルを伝達するシンボルはデータ送信のためのシンボルに比べて少ない数の副搬送波を含む請求項6に記載の基地局又は方法又は請求項10に記載の加入者端末。
- 前記基準シンボルを伝達するシンボルに対するサイクリックプレフィックスはデータ送信のためのシンボルと同じである請求項6に記載の基地局又は方法又は請求項10に記載の加入者端末。
- 前記基準シンボルを伝達するシンボルの多数はデータ送信のためのシンボルの区間内で一致するように構成された請求項6に記載の基地局又は方法又は請求項10に記載の加入者端末。
- 前記基準シンボルを伝達するシンボルの多数はそれぞれシンボルごとに少なくともNRF個の空間ビームを有するN個の空間ビームに対応する基準シンボルを伝達する請求項6に記載の基地局又は方法又は請求項10に記載の加入者端末。
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US201161577533P | 2011-12-19 | 2011-12-19 | |
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US201261649838P | 2012-05-21 | 2012-05-21 | |
US61/649,838 | 2012-05-21 | ||
US13/678,795 | 2012-11-16 | ||
US13/678,795 US9077415B2 (en) | 2011-12-19 | 2012-11-16 | Apparatus and method for reference symbol transmission in an OFDM system |
PCT/KR2012/011103 WO2013094980A1 (en) | 2011-12-19 | 2012-12-18 | Apparatus and method for reference symbol transmission in an ofdm system |
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JP2015509305A true JP2015509305A (ja) | 2015-03-26 |
JP6250549B2 JP6250549B2 (ja) | 2017-12-20 |
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US (1) | US9077415B2 (ja) |
EP (1) | EP2795808A4 (ja) |
JP (1) | JP6250549B2 (ja) |
KR (1) | KR102332474B1 (ja) |
CN (1) | CN104040908B (ja) |
IN (1) | IN2014KN01301A (ja) |
WO (1) | WO2013094980A1 (ja) |
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EP2795808A1 (en) | 2014-10-29 |
IN2014KN01301A (ja) | 2015-10-16 |
CN104040908A (zh) | 2014-09-10 |
EP2795808A4 (en) | 2015-12-16 |
US20130156120A1 (en) | 2013-06-20 |
KR102332474B1 (ko) | 2021-11-30 |
CN104040908B (zh) | 2017-06-13 |
KR20130070560A (ko) | 2013-06-27 |
JP6250549B2 (ja) | 2017-12-20 |
US9077415B2 (en) | 2015-07-07 |
WO2013094980A1 (en) | 2013-06-27 |
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