JP2013509106A - Wlan用のトレーニングシーケンスの指標 - Google Patents
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- 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
- H04B7/06—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
- H04B7/0413—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
- H04B7/06—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
- H04B7/0684—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 different training sequences per antenna
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
- H04L1/0618—Space-time coding
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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
- H04L25/0226—Channel estimation using sounding signals sounding signals per se
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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
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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
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
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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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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Abstract
【選択図】 図2
Description
本願は、以下の米国仮特許出願による恩恵を主張する。
米国仮特許出願第61/254,608号、発明の名称「11ac用のストリーム数指標」、出願日:2009年10月23日
米国仮特許出願第61/255,038号、発明の名称「11ac用のストリーム数指標」、出願日:2009年10月26日
米国仮特許出願第61/259,584号、発明の名称「11ac用のストリーム数指標」、出願日:2009年11月9日
米国仮特許出願第61/260,729号、発明の名称「11ac用のストリーム数指標」、出願日:2009年11月12日
米国仮特許出願第61/294,729号、発明の名称「11ac用のストリーム数指標」、出願日:2010年1月13日
米国仮特許出願第61/307,780号、発明の名称「11ac用のストリーム数指標」、出願日:2010年2月24日
米国仮特許出願第61/321,390号、発明の名称「11ac用のストリーム数指標」、出願日:2010年4月6日
上述した特許出願は全て、開示の内容が参照により全て本願に組み込まれる。
Claims (20)
- 多入力多出力(MIMO)通信チャネルを介して送信するべくデータユニットのプリアンブルを生成する方法であって、
複数の受信機のうち対応する一の受信機に対する前記データユニットの送信に対応する複数のトレーニングシーケンスを含むトレーニングシーケンス群を示している複数の指標を前記複数の受信機に対して提供する前記プリアンブルの第1のフィールドを生成する段階と、
前記複数のトレーニングシーケンスを前記プリアンブルの第2のフィールドに含める段階と、
前記プリアンブルの前記第1のフィールドが、前記プリアンブルの前記第2のフィールドが送信される前に送信されるように前記プリアンブルをフォーマッティングする段階と
を備える方法。 - 前記複数の指標のうち第1の指標は、前記複数の受信機のうち第1の受信機に対する前記データユニットの送信に対応する第1の空間ストリーム数または第1の空間−時間ストリーム数を示す請求項1に記載の方法。
- 前記複数の受信機のうち第1の受信機に対応する前記複数の指標のうち第1の指標は、前記複数の受信機のうち第2の受信機に対する前記データユニットの送信に対応する前記複数のトレーニングシーケンスを含む前記トレーニングシーケンス群の前記第2の受信機に対する別の指標である請求項1に記載の方法。
- 前記プリアンブルの前記第1のフィールドを送信する前に、前記複数の受信機に、前記プリアンブルの前記第1のフィールドが複数の前記トレーニングシーケンス群の前記複数の指標を前記複数の受信機に提供する順序を通知する段階をさらに備える請求項1に記載の方法。
- 前記複数の受信機に対応するグループ識別子を前記プリアンブルの第3のフィールドに含める段階をさらに備える請求項1に記載の方法。
- 多入力多出力(MIMO)通信チャネルを介して送信するべくデータユニットのプリアンブルを生成する物理層(PHY)部を備え、
前記プリアンブルの第1のフィールドは、複数の受信機に対して複数の指標を提供し、前記複数の指標はそれぞれ、前記複数の受信機のうち対応する一の受信機に対する前記データユニットの送信に対応する複数のトレーニングシーケンスを含むトレーニングシーケンス群を示し、
前記プリアンブルは、前記複数のトレーニングシーケンスを含む第2のフィールドを持ち、
前記PHY部はさらに、前記プリアンブルの前記第2のフィールドの送信より前に、前記プリアンブルの前記第1のフィールドを送信させる装置。 - 前記複数の指標のうち第1の指標は、前記複数の受信機のうち第1の受信機に対する前記データユニットの送信に対応する第1の空間ストリーム数または第1の空間−時間ストリーム数を示す請求項6に記載の装置。
- 前記複数の受信機のうち第1の受信機に対応する前記複数の指標のうち第1の指標は、前記複数の受信機のうち第2の受信機に対する前記データユニットの送信に対応する前記トレーニングシーケンス群の前記第2の受信機に対する別の指標である請求項6に記載の装置。
- 前記PHY部はさらに、前記プリアンブルの前記第1のフィールドを送信する前に、前記複数の受信機に、前記プリアンブルの前記第1のフィールドが複数の前記トレーニングシーケンス群の前記複数の指標を前記複数の受信機に提供する順序を通知する請求項6に記載の装置。
- 前記PHY部はさらに、前記複数の受信機に対応するグループ識別子を前記プリアンブルの第3のフィールドに含める請求項6に記載の装置。
- 多入力多出力(MIMO)通信チャネルを介して複数の受信機のうち一の受信機である第1の受信機を用いてデータユニットのプリアンブルを受信する方法であって、
前記複数の受信機のうち対応する一の受信機に対する前記データユニットの送信に対応する複数のトレーニングシーケンスを含むトレーニングシーケンス群を示す複数の指標を提供する前記プリアンブルの第1のフィールドを受信する段階と、
前記複数の指標のうち前記第1の受信機に対応する一の指標に基づき、前記複数のトレーニングシーケンスを含む第1のトレーニングシーケンス群が前記第1の受信機に対応すると判断する段階と、
前記プリアンブルの前記第1のフィールドを受信した後に前記複数のトレーニングシーケンスを含む、前記プリアンブルの第2のフィールドを受信する段階と、
前記第1のトレーニングシーケンス群を用いて、前記MIMO通信チャネルの少なくとも一部分の推定を行う段階と
を備える方法。 - 前記第1の受信機に対応する前記指標は、前記第1の受信機に対する前記データユニットの送信に対応する第1の空間ストリーム数または空間−時間ストリーム数を示す請求項11に記載の方法。
- 前記第1のトレーニングシーケンス群が前記第1の受信機に対応するという判断はさらに、前記複数の受信機のうち第2の受信機に対応する前記複数の指標のうち第2の指標に基づいて行われる請求項11に記載の方法。
- 前記プリアンブルの前記第1のフィールドを受信する前に、前記プリアンブルの前記第1のフィールドが前記複数の受信機に対して複数の前記トレーニングシーケンス群の前記複数の指標を提供する順序の指標を受信する段階と、
前記順序の前記指標にさらに基づいて、前記第1のトレーニングシーケンス群が前記第1の受信機に対応すると判断する段階と
をさらに備える請求項11に記載の方法。 - 前記複数の受信機に対応するグループ識別子を含む、前記プリアンブルの第3のフィールドを受信する段階と、
前記グループ識別子にさらに基づいて、前記第1のトレーニングシーケンス群が前記第1の受信機に対応すると判断する段階と
をさらに備える請求項11に記載の方法。 - 多入力多出力(MIMO)通信チャネルを介してデータユニットのプリアンブルの第1のフィールドを受信する物理層(PHY)部を備える装置であって、
前記プリアンブルの前記第1のフィールドは、複数の指標を提供し、前記複数の指標はそれぞれ、複数の受信機のうち対応する一の受信機に対する前記データユニットの送信に対応する複数のトレーニングシーケンスのトレーニングシーケンス群を示し、
前記複数の受信機のうち第1の受信機は、前記装置を含み、
前記PHY部は、
前記複数の指標のうち前記第1の受信機に対応する一の指標に基づき、前記複数のトレーニングシーケンスを含む第1のトレーニングシーケンス群が前記第1の受信機に対応すると判断し、
前記プリアンブルの前記第1のフィールドを受信した後に、前記複数のトレーニングシーケンスを含む、前記プリアンブルの第2のフィールドを受信し、
前記第1のトレーニングシーケンス群を用いて、前記MIMO通信チャネルの少なくとも一部分の推定を行う装置。 - 前記第1の受信機に対応する前記指標は、前記第1の受信機に対する前記データユニットの送信に対応する第1の空間ストリーム数または第1の空間−時間ストリーム数を示す請求項16に記載の装置。
- 前記PHY部はさらに、前記複数の受信機のうち第2の受信機に対応する前記複数の指標のうち第2の指標にさらに基づいて、前記第1のトレーニングシーケンス群が前記第1の受信機に対応すると判断する請求項16に記載の装置。
- 前記PHY部はさらに、
前記プリアンブルの前記第1のフィールドを受信する前に、前記プリアンブルの前記第1のフィールドが前記複数の受信機に複数の前記トレーニングシーケンス群の前記複数の指標を提供する順序の指標を受信し、
前記順序の前記指標にさらに基づき、前記第1のトレーニングシーケンス群が前記第1の受信機に対応すると判断する請求項16に記載の装置。 - 前記PHY部はさらに、
前記複数の受信機に対応するグループ識別子を含む、前記プリアンブルの第3のフィールドを受信し、
前記グループ識別子にさらに基づいて、前記第1のトレーニングシーケンス群が前記第1の受信機に対応すると判断する請求項16に記載の装置。
Applications Claiming Priority (15)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US25460809P | 2009-10-23 | 2009-10-23 | |
US61/254,608 | 2009-10-23 | ||
US25503809P | 2009-10-26 | 2009-10-26 | |
US61/255,038 | 2009-10-26 | ||
US25958409P | 2009-11-09 | 2009-11-09 | |
US61/259,584 | 2009-11-09 | ||
US26072909P | 2009-11-12 | 2009-11-12 | |
US61/260,729 | 2009-11-12 | ||
US29472910P | 2010-01-13 | 2010-01-13 | |
US61/294,729 | 2010-01-13 | ||
US30778010P | 2010-02-24 | 2010-02-24 | |
US61/307,780 | 2010-02-24 | ||
US32139010P | 2010-04-06 | 2010-04-06 | |
US61/321,390 | 2010-04-06 | ||
PCT/US2010/053849 WO2011050324A1 (en) | 2009-10-23 | 2010-10-22 | Training sequence indication for wlan |
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JP2013509106A true JP2013509106A (ja) | 2013-03-07 |
JP5718346B2 JP5718346B2 (ja) | 2015-05-13 |
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JP2012535432A Active JP5718346B2 (ja) | 2009-10-23 | 2010-10-22 | データユニットのプリアンブルを生成又は受信する方法及び装置 |
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EP (2) | EP2491663B1 (ja) |
JP (2) | JP5718345B2 (ja) |
KR (2) | KR101783926B1 (ja) |
CN (2) | CN102668405B (ja) |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2014033455A (ja) * | 2009-10-30 | 2014-02-20 | Electronics & Telecommunications Research Inst | マルチユーザ無線通信システムにおける制御及びトレーニングシンボル送信方法 |
JP2014168303A (ja) * | 2010-04-13 | 2014-09-11 | Interdigital Patent Holdings Inc | 無線ローカルエリアネットワークにおけるグループ伝送 |
JP2015171150A (ja) * | 2014-03-06 | 2015-09-28 | アップル インコーポレイテッド | Wi−Fi低エネルギープリアンブル |
JPWO2015166959A1 (ja) * | 2014-04-28 | 2017-04-20 | 株式会社東芝 | 無線通信装置および無線通信方法 |
US9681386B2 (en) | 2014-03-06 | 2017-06-13 | Apple Inc. | Wi-Fi low energy preamble |
JP2017538323A (ja) * | 2015-08-10 | 2017-12-21 | エルジー エレクトロニクス インコーポレイティド | 無線lanシステムにおける制御フィールドを含む制御信号を構成する方法及び装置 |
JP2018518877A (ja) * | 2015-04-30 | 2018-07-12 | ホアウェイ・テクノロジーズ・カンパニー・リミテッド | Wlanシステムのリソース指示方法及び装置 |
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CN102577161A (zh) | 2012-07-11 |
US9294164B2 (en) | 2016-03-22 |
EP2491663A1 (en) | 2012-08-29 |
KR20120099644A (ko) | 2012-09-11 |
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JP2013509105A (ja) | 2013-03-07 |
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CN102577161B (zh) | 2016-08-03 |
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EP2491662A1 (en) | 2012-08-29 |
US10693533B2 (en) | 2020-06-23 |
US8724546B2 (en) | 2014-05-13 |
CN102668405B (zh) | 2015-12-02 |
US20160191127A1 (en) | 2016-06-30 |
EP2491662B1 (en) | 2015-07-29 |
US9281877B2 (en) | 2016-03-08 |
JP5718346B2 (ja) | 2015-05-13 |
KR101783927B1 (ko) | 2017-10-10 |
JP5718345B2 (ja) | 2015-05-13 |
US20110096797A1 (en) | 2011-04-28 |
CN102668405A (zh) | 2012-09-12 |
EP2491663B1 (en) | 2015-07-29 |
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