JP5856257B2 - 無線通信装置のグループと同時に通信するための装置、システム及び方法 - Google Patents
無線通信装置のグループと同時に通信するための装置、システム及び方法 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
- H04B7/06—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
- 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
- H04B7/0417—Feedback systems
- H04B7/0421—Feedback systems utilizing implicit feedback, e.g. steered pilot signals
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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
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
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Description
(付記1)
無線通信媒体を介して複数の無線通信装置の少なくとも1つのグループと通信する無線通信ユニットを有し、
前記無線通信ユニットは、該無線通信ユニットが2又はそれ以上の異なる無線通信伝送を前記グループの2又はそれ以上の通信装置へ夫々同時に送信する時間期間に、前記無線通信媒体をリザーブする、
装置。
(付記2)
前記無線通信ユニットは、少なくとも1つのRTSパケットを前記グループの1又はそれ以上の無線通信装置へ送信することによって、前記無線通信媒体をリザーブし、
前記RTSパケットは、リザーブされる前記時間期間に対応する継続期間値を含む、
付記1に記載の装置。
(付記3)
前記RTSパケットは、前記複数の無線通信装置の前記グループへ割り当てられるアドレスを含む、
付記2に記載の装置。
(付記4)
前記無線通信ユニットは、前記RTSパケットに応答して、前記2又はそれ以上の無線通信装置から2又はそれ以上のCTSパケットを受信した後に前記2又はそれ以上の無線通信装置へ前記伝送を送信する、
付記2に記載の装置。
(付記5)
前記無線通信ユニットは、2又はそれ以上のCTSパケットを同時に受信する、
付記4に記載の装置。
(付記6)
前記2又はそれ以上のCTSパケットは同一である、
付記5に記載の装置。
(付記7)
前記無線通信ユニットは、データパケットを前記グループの少なくとも1つの無線通信装置へ送信することによって、前記無線通信媒体をリザーブし、
前記データパケットは、リザーブされる前記時間期間に対応する存続期間値を含む、
付記1に記載の装置。
(付記8)
前記無線通信ユニットは、少なくとも1つのビームフォーミング・トレーニング開始フレームを前記複数の無線通信装置の前記グループへ送信し、
前記無線通信ユニットは、2又はそれ以上のフィードバックフレームを前記2又はそれ以上の無線通信装置から受信し、
前記無線通信ユニットは、前記2又はそれ以上のフィードバックフレームに基づき2又はそれ以上のビームフォーミング方式を決定し、
前記無線通信ユニットは、前記2又はそれ以上のビームフォーミング方式を夫々用いて、前記2又はそれ以上の異なる無線通信伝送を前記2又はそれ以上の無線通信装置へ夫々送信する、
付記1に記載の装置。
(付記9)
前記無線通信ユニットは、前記複数の無線通信装置の前記グループへ割り当てられるアドレスを含む前記開始フレームを送信する、
付記8に記載の装置。
(付記10)
前記無線通信ユニットは、SDMA方式に従って前記2又はそれ以上の異なる無線通信伝送を送信する、
付記1に記載の装置。
(付記11)
前記無線通信媒体は、CSMA/CA方式に従って動作する、
付記1に記載の装置。
(付記12)
無線通信ユニットによって時間期間に無線通信媒体をリザーブするステップと、
リザーブされる前記時間期間の間、2又はそれ以上の無線通信伝送を前記無線通信装置から複数の無線通信装置のグループの2又はそれ以上の夫々の無線通信装置へ同時に送信するステップと
を有する方法。
(付記13)
前記無線通信媒体をリザーブする前記ステップは、少なくとも1つのRTSパケットを前記グループの1又はそれ以上の無線通信装置へ送信することを含み、
前記RTSパケットは、リザーブされる前記時間期間に対応する存続期間値を含む、
付記12に記載の方法。
(付記14)
前記RTSパケットは、前記複数の無線通信装置の前記グループへ割り当てられるアドレスを含む、
付記13に記載の方法。
(付記15)
前記RTSパケットに応答して、前記2又はそれ以上の無線通信装置から2又はそれ以上のCTSパケットを受信した後に前記2又はそれ以上の無線通信装置へ前記伝送を送信するステップ
を有する付記13に記載の方法。
(付記16)
前記無線通信媒体をリザーブする前記ステップは、前記グループの少なくとも1つの無線通信装置へデータパケットを送信することを含み、
前記データパケットは、リザーブされる前記時間期間に対応する存続期間値を含む、
付記12に記載の方法。
(付記17)
少なくとも1つのビームフォーミング・トレーニング開始フレームを前記無線通信ユニットから前記複数の無線通信装置の前記グループへ送信するステップと、
前記無線通信ユニットで2又はそれ以上のフィードバックフレームを前記に又はそれ以上の無線通信装置から受信するステップと、
前記2又はそれ以上のフィードバックフレームに基づき2又はそれ以上のビームフォーミング方式を決定するステップと、
前記2又はそれ以上のビームフォーミング方式を夫々用いて、前記2又はそれ以上の異なる無線通信伝送を前記2又はそれ以上の無線通信装置へ夫々送信するステップと
を有する付記12に記載の方法。
(付記18)
無線通信媒体を介して複数の他の無線通信装置のグループと通信する無線通信装置を有し、
前記無線通信装置は、
1又はそれ以上のアンテナと、
時間期間に前記無線通信媒体をリザーブする無線通信ユニットと
を有し、
前記時間期間の間に、前記無線通信ユニットは、2又はそれ以上の異なる無線通信伝送を前記グループの2又はそれ以上の無線通信装置へ夫々同時に送信する、
無線通信システム。
(付記19)
前記無線通信装置は、少なくとも1つのRTSパケットを前記グループの1又はそれ以上の無線通信装置へ送信することによって、前記無線通信媒体をリザーブし、
前記RTSパケットは、リザーブされる前記時間期間に対応する存続期間値を含む、
付記18に記載の無線通信システム。
(付記20)
前記無線通信装置は、データパケットを前記グループの少なくとも1つの無線通信装置へ送信することによって、前記無線通信媒体をリザーブし、
前記データパケットは、リザーブされる前記時間期間に対応する存続期間値を含む、
付記18に記載の無線通信システム。
102〜108 無線通信装置
110 無線通信媒体
112 無線通信ユニット
114 プロセッサ
116 入力ユニット
118 出力ユニット
120 メモリユニット
122 記憶ユニット
124 アンテナ
130 グループ
214,318 無線通信伝送
215 リザーブされる時間期間
216,320 ブロックACK要求(BAR)
218 データパケット
219 送信要求(RTS)パケット
220 確認応答(ACK)パケット
222,224 送信許可(CTS)パケット
310 ビームフォーミング・トレーニング開始フレーム
312〜316 フィードバックフレーム
Claims (1)
- 無線通信媒体を介して複数の無線通信装置の少なくとも1つのグループと通信する無線通信ユニットを有し、
前記無線通信ユニットは、該無線通信ユニットが2又はそれ以上の異なる無線通信伝送を前記グループの2又はそれ以上の無線通信装置へ夫々同時に送信する時間期間に、前記無線通信媒体をリザーブし、
前記無線通信ユニットは、前記無線通信伝送のためにリザーブされる前記時間期間に対応する存続時間値を含むデータパケットを前記2又はそれ以上の無線通信装置のうちの1つ以上へ送信するよう更に構成される、
装置。
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US12/642,818 US9173191B2 (en) | 2009-12-20 | 2009-12-20 | Device, system and method of simultaneously communicating with a group of wireless communication devices |
US12/642,818 | 2009-12-20 |
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JP2012540063A Division JP5607173B2 (ja) | 2009-12-20 | 2010-11-18 | 無線通信装置のグループと同時に通信するための装置、システム及び方法 |
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JP2014174006A Active JP5856257B2 (ja) | 2009-12-20 | 2014-08-28 | 無線通信装置のグループと同時に通信するための装置、システム及び方法 |
JP2015240925A Active JP6301305B2 (ja) | 2009-12-20 | 2015-12-10 | 無線通信装置のグループとの無線通信の方法、コンピュータプログラム及びコンピュータ読み取り可能な記憶媒体 |
JP2017016552A Active JP6434068B2 (ja) | 2009-12-20 | 2017-02-01 | 無線通信装置のグループとの無線通信のための装置、方法、コンピュータプログラム及びコンピュータ読み取り可能な記憶媒体 |
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JP2017016552A Active JP6434068B2 (ja) | 2009-12-20 | 2017-02-01 | 無線通信装置のグループとの無線通信のための装置、方法、コンピュータプログラム及びコンピュータ読み取り可能な記憶媒体 |
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US (6) | US9173191B2 (ja) |
EP (4) | EP3923603B1 (ja) |
JP (4) | JP5607173B2 (ja) |
CN (2) | CN102104408B (ja) |
PL (1) | PL3139642T3 (ja) |
WO (1) | WO2011075271A2 (ja) |
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