JP6012472B2 - 専用基準信号(drs)プリコーディング粒度の通知、方法、通信装置及び移動通信端末 - Google Patents
専用基準信号(drs)プリコーディング粒度の通知、方法、通信装置及び移動通信端末 Download PDFInfo
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- 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
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- 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
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- 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
- H04B7/0623—Auxiliary parameters, e.g. power control [PCB] or not acknowledged commands [NACK], used as feedback information
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- H04L25/00—Baseband systems
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- H04L25/0224—Channel estimation using sounding signals
- H04L25/0226—Channel estimation using sounding signals sounding signals per se
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- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
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- H04L5/00—Arrangements affording multiple use of the transmission path
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- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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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
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/143—Two-way operation using the same type of signal, i.e. duplex for modulated signals
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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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03375—Passband transmission
- H04L2025/03414—Multicarrier
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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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03375—Passband transmission
- H04L2025/0342—QAM
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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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03426—Arrangements for removing intersymbol interference characterised by the type of transmission transmission using multiple-input and multiple-output channels
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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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/03777—Arrangements for removing intersymbol interference characterised by the signalling
- H04L2025/03783—Details of reference signals
- H04L2025/03796—Location of reference signals
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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
- 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
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
Description
本出願は、2010年1月7日出願の米国特許仮出願第61/293,115号の優先権を主張するものであり、前記出願の内容は、参照により本明細書に組み込まれる。
Claims (17)
- 受信機において、通信チャネルを介して送信機から複数のブロックにおいて送信される1以上の専用基準信号を含む複数の信号であって、対応する期間に対応するサブキャリアのグループで送信され、当該信号を前記送信機の複数のアンテナポートにマッピングする対応するプリコーディングスキームを使用してプリコーディングされる複数の信号を受信する段階と、
受信した前記複数の信号に基づいて、複数のスペクトルサブバンドの各々において前記通信チャネルに関するフィードバックを前記受信機で計算し、前記複数のスペクトルサブバンドについての前記フィードバックを前記送信機へと報告する段階と、
少なくとも所定の数の空間レイヤにおいて、前記複数の信号が前記送信機から前記受信機へと送信されることを特定した場合、前記フィードバックが報告される前記複数のスペクトルサブバンドの各々に含まれる前記1以上の専用基準信号にわたって同時に、前記通信チャネルの1以上のパラメータを推定する段階と、
前記推定された1以上のパラメータに基づいて、前記複数の信号をデコードする段階と、
を備え、
前記1以上のパラメータを推定する段階は、
前記プリコーディングスキームが、前記送信機及び前記受信機の間の物理的伝播チャネルのレートよりも速くないレートで変化する、2以上のリソースブロックのセットを特定する段階と、
前記2以上のリソースブロックの前記セットが特定された場合、前記2以上のリソースブロックの前記セットに含まれる複数の専用基準信号を同時に処理することによって、前記複数のスペクトルサブバンドの各々について前記1以上のパラメータを推定する段階と、
を有する、
方法。 - 前記1以上のパラメータを推定する段階は、
前記受信機において推定条件を評価する段階と、
前記推定条件が満たされる場合には、前記複数のスペクトルサブバンドの各々について前記1以上のパラメータを推定する段階と、
を有する請求項1に記載の方法。 - 前記推定条件を評価する段階は、
空間レイヤの数が4よりも多い場合に、前記複数の信号が前記送信機から前記受信機へと送信されることを特定することを含む、
請求項2に記載の方法。 - 前記推定条件を評価する段階は、
前記送信機から複数の受信機への同時送信を除外するシングルユーザー送信モードで、前記複数の信号が前記受信機へと送信されることを特定することを含む、
請求項2に記載の方法。 - 前記複数の信号を受信する段階は、周波数分割複信(FDD)モードで前記複数の信号を受信する段階を有する、
請求項1から請求項4までの何れか1項に記載の方法。 - 前記複数の信号を受信する段階は、
受信機固有でない共通のプリコーディングスキームを使用してプリコーディングされた共通基準信号を受信する段階を有し、
前記1以上のパラメータを推定する段階は、
前記共通基準信号に基いて、前記通信チャネルの少なくとも第1パラメータを査定する段階と、
前記第1パラメータに基づいて及び前記フィードバックが報告された前記複数のスペクトルサブバンドの各々に含まれる前記専用基準信号に基づいて、前記通信チャネルの少なくとも第2パラメータを査定する段階と
を有する、
請求項1から請求項5までの何れか1項に記載の方法。 - 前記複数の信号は、
その値が、同時チャネル推定が許容されないことを前記受信機に示すビット、又は、
その値が、前記複数の専用基準信号を同時に処理することによって前記1以上のパラメータを推定することが許されることを示すビット、
を含む、
請求項1から請求項6までの何れか一項に記載の方法。 - 前記1以上のパラメータを推定する段階は、
前記2以上のリソースブロックの前記セットが特定されない場合、各リソースブロックについて個別に、前記複数の専用基準信号における前記1以上のパラメータを推定する段階を有する、
請求項1から請求項7までの何れか一項に記載の方法。
- 1以上の受信アンテナと、
前記1以上の受信アンテナを介して複数の信号を受信する受信機と、
を備え、
前記複数の信号は、通信チャネルを介して複数のブロックにおいて送信機から送信される1以上の専用基準信号を含み、
前記1以上の専用基準信号を含む各ブロックにおける前記複数の信号は、対応する期間に対応するサブキャリアのグループ上で送信され、前記複数の信号を前記送信機の複数のアンテナポートにマッピングする対応するプリコーディングスキームを使用してプリコーディングされ、
前記受信機は、
受信した前記複数の信号に基づいて、複数のスペクトルサブバンドの各々における前記通信チャネルに関するフィードバックを計算し、
前記複数のスペクトルサブバンドについての前記フィードバックを前記送信機へと報告し、
少なくとも所定の数の空間レイヤにおいて、前記複数の信号が前記送信機から前記受信機へと送信されることを特定した場合、前記フィードバックが報告される前記複数のスペクトルサブバンドの各々に含まれる前記1以上の専用基準信号にわたって同時に、前記通信チャネルの1以上のパラメータを推定し、
前記推定された1以上のパラメータに基づいて前記複数の信号をデコードし、
前記受信機は、
前記プリコーディングスキームが、前記送信機及び前記受信機の間の物理的伝播チャネルのレートよりも速くないレートで変化する2以上のリソースブロックのセットを特定し、
前記2以上のリソースブロックの前記セットが特定された場合、前記2以上のリソースブロックの前記セットに含まれる複数の専用基準信号を同時に処理することによって、前記複数のスペクトルサブバンドの各々について前記1以上のパラメータを推定する、
通信装置。 - 前記受信機は、
推定条件を評価し、
前記推定条件が満たされる場合には、前記複数のスペクトルサブバンドの各々について前記パラメータを推定する、
請求項9に記載の通信装置。 - 空間レイヤの数が4よりも多い場合に、前記複数の信号が前記送信機から前記受信機へと送信されることを特定することにより、前記受信機は、前記推定条件を評価する、
請求項10に記載の通信装置。 - 前記送信機から複数の受信機への同時送信を除外するシングルユーザー送信モードで、前記複数の信号が前記受信機へと送信されることを特定することにより、前記受信機は、前記推定条件を評価する、
請求項10に記載の通信装置。 - 前記受信機は、周波数分割複信(FDD)モードで前記複数の信号を受信する、
請求項9から請求項12までの何れか1項に記載の通信装置。 - 前記受信機は、
受信機固有でない共通のプリコーディングスキームを使用してプリコーディングされた共通基準信号を受信し、
前記共通基準信号に基づいて、前記通信チャネルの少なくとも第1パラメータを査定し、
前記第1パラメータに基づいて及び前記フィードバックが報告された前記複数のスペクトルサブバンドの各々に含まれる前記専用基準信号に基いて、前記通信チャネルの少なくとも第2パラメータを査定する、
請求項9から請求項13までの何れか1項に記載の通信装置。 - 前記複数の信号は、
その値が、同時チャネル推定が許容されないことを前記受信機に示すビット、又は、
その値が、前記複数の専用基準信号を同時に処理することによって前記1以上のパラメータを推定することが許されることを示すビット、
を含む、
請求項9から請求項14までの何れか1項に記載の通信装置。 - 前記受信機は、
前記2以上のリソースブロックの前記セットが特定されない場合、各リソースブロックについて個別に、前記複数の専用基準信号における前記1以上のパラメータを推定する、
請求項9から請求項15までの何れか1項に記載の通信装置。 - 請求項9から請求項16までの何れか1項に記載の前記通信装置を備える、
移動通信端末。
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US29311510P | 2010-01-07 | 2010-01-07 | |
US61/293,115 | 2010-01-07 | ||
PCT/IB2011/050015 WO2011083417A2 (en) | 2010-01-07 | 2011-01-04 | Signaling of dedicated reference signal (drs) precoding granularity |
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JP6012472B2 true JP6012472B2 (ja) | 2016-10-25 |
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EP (1) | EP2522099A4 (ja) |
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CN (1) | CN102687456B (ja) |
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- 2011-01-04 CN CN201180005108.4A patent/CN102687456B/zh active Active
- 2011-01-04 WO PCT/IB2011/050015 patent/WO2011083417A2/en active Application Filing
- 2011-01-04 DE DE202011111016.1U patent/DE202011111016U1/de not_active Expired - Lifetime
- 2011-01-04 US US12/983,898 patent/US8699528B2/en active Active
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JP2013516880A (ja) | 2013-05-13 |
US20110096704A1 (en) | 2011-04-28 |
CN102687456B (zh) | 2015-04-15 |
EP2522099A4 (en) | 2014-12-31 |
US8699528B2 (en) | 2014-04-15 |
WO2011083417A2 (en) | 2011-07-14 |
CN102687456A (zh) | 2012-09-19 |
EP2522099A2 (en) | 2012-11-14 |
WO2011083417A3 (en) | 2011-09-01 |
DE202011111016U1 (de) | 2018-05-02 |
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