JP2015536099A - 多次元アンテナ構成を使用する無線通信 - Google Patents
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
-
- 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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
- H04B7/0469—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking special antenna structures, e.g. cross polarized antennas into account
-
- 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]
-
- 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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Abstract
Description
Claims (20)
- 多成分コードブック構造を使用してチャネル状態情報(CSI)フィードバックを可能にするための方法であって、
複数のチャネルを測定するステップと、
前記複数のチャネルの前記測定に基づいて、複数の成分コードブックの成分コードブックごとのCSIフィードバックを判定するステップと、
前記複数の成分コードブックの成分コードブックごとの前記CSIフィードバックを基地局に送るステップと
を含むことを特徴とする方法。 - 前記複数の成分コードブックは、第1の成分コードブックおよび第2の成分コードブックを含むことを特徴とする請求項1に記載の方法。
- 前記第1の成分コードブックは、水平成分コードブックであり、前記第2の成分コードブックは、垂直成分コードブックであることを特徴とする請求項2に記載の方法。
- 前記複数のチャネルを測定するステップは、前記第1の成分コードブックに関連付けられた第1のCSI基準信号(CSI−RS)、および前記第2の成分コードブックに関連付けられた第2のCSI−RSを測定するステップを含むことを特徴とする請求項2に記載の方法。
- 前記第1の成分コードブックおよび前記第2の成分コードブックの関数として、複合コードブックを計算するステップをさらに含むことを特徴とする請求項2に記載の方法。
- 前記関数は、クロネッカー積関数を含むことを特徴とする請求項5に記載の方法。
- 水平偏波および垂直偏波の関数として前記複合コードブックを計算するステップをさらに含むことを特徴とする請求項5に記載の方法。
- 前記複数の成分コードブックの成分コードブックごとの前記CSIフィードバックは、前記複合コードブックによって示されることを特徴とする請求項5に記載の方法。
- 前記CSIフィードバックは、前記複合コードブックに対するレートインジケータ(RI)およびチャネル品質インジケータ(CQI)の少なくとも一方を含むことを特徴とする請求項5に記載の方法。
- 前記CSIフィードバックは、前記第1の成分コードブックに対するプリコーダ行列インデックス(PMI)、および前記第2の成分コードブックに対するPMIを含み、前記第1の成分コードブックに対する前記PMIおよび前記第2の成分コードブックに対する前記PMIは、別々に前記基地局に送信されることを特徴とする請求項2に記載の方法。
- 多成分コードブック構造を使用してチャネル状態情報(CSI)フィードバックを可能にするための無線送信/受信ユニット(WTRU)であって、
プロセッサを備え、前記プロセッサは、
複数のチャネルを測定し、
前記複数のチャネルの前記測定に基づいて、複数の成分コードブックの成分コードブックごとのCSIフィードバックを判定し、
前記複数の成分コードブックの成分コードブックごとの前記CSIフィードバックを基地局に送る
ように構成されることを特徴とするWTRU。 - 前記複数の成分コードブックは、第1の成分コードブックおよび第2の成分コードブックを含むことを特徴とする請求項11に記載のWTRU。
- 前記第1の成分コードブックは、水平成分コードブックであり、前記第2の成分コードブックは、垂直成分コードブックであることを特徴とする請求項12に記載のWTRU。
- 前記プロセッサは、前記第1の成分コードブックに関連付けられた第1のCSI基準信号(CSI−RS)、および前記第2の成分コードブックに関連付けられた第2のCSI−RSを測定することによって、前記複数のチャネルを測定するように構成されることを特徴とする請求項12に記載のWTRU。
- 前記プロセッサは、前記第1の成分コードブックおよび前記第2の成分コードブックの関数として、複合コードブックを計算するように構成されることを特徴とする請求項12に記載のWTRU。
- 前記関数は、クロネッカー積関数を含むことを特徴とする請求項15に記載のWTRU。
- 前記プロセッサは、水平偏波および垂直偏波の関数として、前記複合コードブックを計算するように構成されることを特徴とする請求項15に記載のWTRU。
- 前記複数の成分コードブックの成分コードブックごとの前記CSIフィードバックは、前記複合コードブックによって示されることを特徴とする請求項15に記載のWTRU。
- 前記CSIフィードバックは、前記複合コードブックに対するレートインジケータ(RI)およびチャネル品質インジケータ(CQI)の少なくとも一方を含むことを特徴とする請求項15に記載のWTRU。
- 前記CSIフィードバックは、前記第1の成分コードブックに対するプリコーダ行列インデックス(PMI)、および前記第2の成分コードブックに対するPMIを含み、前記第1の成分コードブックに対する前記PMIおよび前記第2の成分コードブックに対する前記PMIは、別々に前記基地局に送信されることを特徴とする請求項12に記載のWTRU。
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US201261707706P | 2012-09-28 | 2012-09-28 | |
US61/707,706 | 2012-09-28 | ||
PCT/US2013/062267 WO2014052806A1 (en) | 2012-09-28 | 2013-09-27 | Wireless communication using multi-dimensional antenna configuration |
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JP2017077809A Ceased JP2017139804A (ja) | 2012-09-28 | 2017-04-10 | 多次元アンテナ構成を使用する無線通信 |
JP2018128215A Active JP6735318B2 (ja) | 2012-09-28 | 2018-07-05 | 多次元アンテナ構成を使用する無線通信 |
JP2020119974A Pending JP2020178361A (ja) | 2012-09-28 | 2020-07-13 | 多次元アンテナ構成を使用する無線通信 |
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JP2018128215A Active JP6735318B2 (ja) | 2012-09-28 | 2018-07-05 | 多次元アンテナ構成を使用する無線通信 |
JP2020119974A Pending JP2020178361A (ja) | 2012-09-28 | 2020-07-13 | 多次元アンテナ構成を使用する無線通信 |
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EP (1) | EP2901571A1 (ja) |
JP (4) | JP6127146B2 (ja) |
TW (1) | TWI617148B (ja) |
WO (1) | WO2014052806A1 (ja) |
Cited By (12)
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JP2016527829A (ja) * | 2013-08-08 | 2016-09-08 | 華為技術有限公司Huawei Technologies Co.,Ltd. | プリコーディングマトリクス指標を決定する方法、受信装置、および送信装置 |
JPWO2016152301A1 (ja) * | 2015-03-24 | 2018-01-18 | ソニー株式会社 | 装置 |
JP2018074605A (ja) * | 2017-12-20 | 2018-05-10 | 華為技術有限公司Huawei Technologies Co.,Ltd. | プリコーディングマトリクス指標を決定する方法、受信装置、および送信装置 |
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JP6127146B2 (ja) | 2017-05-10 |
TW201429182A (zh) | 2014-07-16 |
JP2020178361A (ja) | 2020-10-29 |
JP6735318B2 (ja) | 2020-08-05 |
TWI617148B (zh) | 2018-03-01 |
JP2017139804A (ja) | 2017-08-10 |
EP2901571A1 (en) | 2015-08-05 |
WO2014052806A1 (en) | 2014-04-03 |
JP2018198428A (ja) | 2018-12-13 |
US9918240B2 (en) | 2018-03-13 |
US20140098689A1 (en) | 2014-04-10 |
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