JP5555745B2 - マルチ・ユーザーの仮想mimoを実施するための方法、装置、およびシステム - Google Patents
マルチ・ユーザーの仮想mimoを実施するための方法、装置、およびシステム 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
- H04B7/0452—Multi-user MIMO 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
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
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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
- H04B7/0667—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 delayed versions of same signal
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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
- H04B7/068—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 using space frequency diversity
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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
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit antennas
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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
-
- 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
- H04B7/0667—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 delayed versions of same signal
- H04B7/0669—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 delayed versions of same signal using different channel coding between antennas
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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
- H04B7/0667—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 delayed versions of same signal
- H04B7/0671—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 delayed versions of same signal using different delays between antennas
Description
1.基地局および複数のWTRUを含む無線通信システムにおいて、マルチ・ユーザーの仮想MIMOを実施するための方法であって、前記基地局が複数のアンテナを含み、かつ前記WTRUの内の少なくとも1つが少なくとも2つのアンテナを含み、前記基地局のアンテナの数は、前記WTRUの任意のアンテナの数より少なくないことを特徴とする方法。
Claims (16)
- 基地局および複数の無線送受信ユニット(WTRU)を含む無線通信システムにおいてマルチユーザの仮想MIMO(multiple-input multiple-output)を実施する方法であって、前記基地局は基地局アンテナ群にグループ化される複数のアンテナを含み、および前記WTRUの少なくとも1つは少なくとも2つのアンテナを含み、および前記基地局のアンテナの数は少なくとも前記WTRUのアンテナの数であり、前記方法は、
それぞれのWTRUとそれぞれの基地局アンテナ群との間のマルチパスチャネルマトリクスを前記基地局にて生成するステップであって、前記マルチパスチャネルマトリクスは、それぞれのWTRUに関連付けられるアンテナおよび前記基地局のそれぞれの基地局アンテナ群に関連付けられるアンテナについてのチャネル係数を備え、ステップと、
前記基地局と前記WTRUとの間のチャネルについての有効チャネルマトリクスを前記基地局にて生成するステップであって、前記有効チャネルマトリクスは、前記WTRUについてのマルチパスチャネルマトリクスを備え、および前記マルチユーザの仮想MIMOについての有効MIMOチャネルである、ステップと、
前記WTRUからの受信信号を、前記有効チャネルマトリクスを使用して処理するステップと、
前記WTRUのそれぞれについての受信信号のデータを回収するために線形最小平均二乗誤差を使用するステップと
を備えることを特徴とする方法。 - 送信プリコーディングが前記有効チャネルマトリクスを使用して実施されることを特徴とする請求項1に記載の方法。
- 固有ビーム形成が前記有効チャネルマトリクスを使用して実施されることを特徴とする請求項1に記載の方法。
- 送信ダイバーシティ処理が実施されることを特徴とする請求項1に記載の方法。
- STBC(Space Time Block Coding)、SFBC(Space Frequency Block Coding)、およびCDD(Cyclic Delay Diversity)の少なくとも1つが実施されることを特徴とする請求項4に記載の方法。
- SC−FDMA(Single Carrier Frequency Division Multiple Access)が実施されることを特徴とする請求項1に記載の方法。
- OFDMA(Orthogonal Frequency Division Multiple Access)が実施されることを特徴とする請求項1に記載の方法。
- MC−OFDMA(Multi-Carrier Orthogonal Frequency Division Multiple Access)が実施されることを特徴とする請求項1に記載の方法。
- 複数の無線送受信ユニット(WTRU)に対してマルチユーザの仮想MIMO(multiple-input multiple-output)を実施する基地局であって、少なくとも1つのWTRUは少なくとも2つのアンテナを有し、前記基地局は、
複数の基地局アンテナであって、前記基地局アンテナの数は少なくとも任意の前記WTRUのアンテナの数であり、および前記複数のアンテナは基地局アンテナ群にグループ化される、複数の基地局アンテナと、
それぞれのWTRUとそれぞれの基地局アンテナ群との間のマルチパスチャネルマトリクス、および前記基地局と前記WTRUとの間のチャネルについての有効チャネルマトリクスを前記マルチパスチャネルマトリクスに基づいて生成するチャネル推定器であって、前記有効チャネルマトリクスは、前記マルチユーザの仮想MIMOについての有効MIMOチャネルであり、および前記マルチパスチャネルマトリクスは、それぞれのWTRUに関連付けられるアンテナおよびそれぞれの基地局アンテナ群に関連付けられるアンテナについてのチャネル係数を備える、チャネル推定器と、
前記有効チャネルマトリクスを使用して、前記WTRUに信号を送信し、および前記WTRUから信号を受信し、並びに前記WTRUのそれぞれについての受信信号のデータを回収するために線形最小平均二乗誤差を使用するトランシーバと
を備えたことを特徴とする基地局。 - 前記トランシーバが、前記有効チャネルマトリクスを使用して送信プリコーディングを実施するように構成されることを特徴とする請求項9に記載の基地局。
- 前記トランシーバが、前記有効チャネルマトリクスを使用して固有ビーム形成を実施するように構成されることを特徴とする請求項9に記載の基地局。
- 前記トランシーバが、送信ダイバーシティ処理を実施するように構成されることを特徴とする請求項9に記載の基地局。
- 前記トランシーバが、STBC(Space Time Block Coding)、SFBC(Space Frequency Block Coding)、およびCDD(Cyclic Delay Diversity)の少なくとも1つを実施するように構成されることを特徴とする請求項12に記載の基地局。
- 前記トランシーバが、SC−FDMA(Single Carrier Frequency Division Multiple Access)を実施することを特徴とする請求項9に記載の基地局。
- 前記トランシーバが、OFDMA(Orthogonal Frequency Division Multiple Access)を実施することを特徴とする請求項9に記載の基地局。
- 前記トランシーバが、MC−OFDMA(Multi-Carrier Orthogonal Frequency Division Multiple Access)を実施することを特徴とする請求項9に記載の基地局。
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KR (2) | KR20090032144A (ja) |
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CN101502020A (zh) | 2009-08-05 |
RU2009108332A (ru) | 2010-09-20 |
BRPI0714275A2 (pt) | 2013-04-16 |
US9264116B2 (en) | 2016-02-16 |
JP2013031176A (ja) | 2013-02-07 |
EP2050205B1 (en) | 2015-10-07 |
WO2008021008A3 (en) | 2008-04-10 |
MX2009001250A (es) | 2009-04-07 |
TW200812269A (en) | 2008-03-01 |
EP3001578A1 (en) | 2016-03-30 |
CN101502020B (zh) | 2014-02-05 |
RU2411650C2 (ru) | 2011-02-10 |
US20130022006A1 (en) | 2013-01-24 |
US8305956B2 (en) | 2012-11-06 |
US20080032746A1 (en) | 2008-02-07 |
HK1222745A1 (zh) | 2017-07-07 |
EP2050205A2 (en) | 2009-04-22 |
KR20090032144A (ko) | 2009-03-31 |
IL196863A0 (en) | 2009-11-18 |
EP3001578B1 (en) | 2017-03-29 |
JP5061189B2 (ja) | 2012-10-31 |
AU2007284906A1 (en) | 2008-02-21 |
TWI443990B (zh) | 2014-07-01 |
AR062228A1 (es) | 2008-10-22 |
KR101177165B1 (ko) | 2012-08-27 |
JP2010500814A (ja) | 2010-01-07 |
KR20090032139A (ko) | 2009-03-31 |
WO2008021008A2 (en) | 2008-02-21 |
CA2660826A1 (en) | 2008-02-21 |
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