JP2015520973A - COBRA(coordinatedorthogonalblock−basedresourceallocation)動作をサポートする方法および装置 - Google Patents
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- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
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- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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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Abstract
Description
関連出願の相互参照
本出願は、その内容が本明細書に参照によって組み込まれている、2012年4月30日に出願した米国特許仮出願第61/640,219号、2012年11月9日に出願した米国特許仮出願第61/724,438号、および2013年1月11日に出願した米国特許仮出願第61/751,453号の利益を主張するものである。
または
Pathloss=TxPowerSTA−RSSIAP 式(2)
ここで、TxPowerAP、RSSISTA、およびTxPowerSTAは、COBRAコントローラIEからによって入手され得、RSSIAPは、APで測定される。
ここで、T1、TODSTAは、COBRAコントローリIEから入手され得、TOAAPは、TODクロックを使用してAPで測定され得る。
ここで、T1、TODSTAは、COBRAコントローリIE1200から入手され得、TOAAPは、TODクロックを使用してAPで測定され得る。AP 1310は、その後、COBRAグループを管理するためにグループ化管理手順を使用することができる。
TOA2=t0+Δ2+2SIFS+duration(Req)+duration(Resp1)+duration(Resp1)+Δ2 式(6)
TOA3=t0+Δ3+3SIFS+duration(Req)+duration(Resp1)+duration(Resp2)+duration(Resp3)+Δ3 式(7)
TOA4=t0+Δ4+4SIFS+duration(Req)+duration(Resp1)+duration(Resp2)+duration(Resp3)+duration(Resp4)+Δ4 式(8)
PDelay=(T1+(TOAAP−TODSTA))/2 式(9)
を使用して判定され得、T1およびTODSTAは、COBRAコントローリIEから入手され得、TOAAPは、TODクロックを使用してAPで測定され得る。TODクロックオフセットについて、COBRAコントローラとCOBRAコントローリとの間の伝搬遅延は、
C_Offset=(T1−(TOAAP−TODSTA))/2 式(10)
を使用して判定され得、T1およびTODSTAは、COBRAコントローリIEから入手され得、TOAAPは、TODクロックを使用してAPで測定され得る。
実施形態
1.米国電子技術者協会(IEEE)802.11アクセスポイント(AP)内で使用される方法であって、
第1の複数のステーション(STA)の送信および前記第1の複数のSTAのそれぞれからの複数のブロック肯定応答(BA)送信のネットワークアロケーションベクトル(NAV)値を判定するステップ
を含む、方法。
をさらに含む、実施形態2に記載の方法。
をさらに含む、実施形態3に記載の方法。
をさらに含む、実施形態1乃至13のいずれか一項に記載の方法。
アクセスポイント(AP)に要求を送信するステップ
を含む、方法。
をさらに含む、実施形態22に記載の方法。
をさらに含む、実施形態24に記載の方法。
を含む、米国電子技術者協会(IEEE)802.11ステーション(STA)。
をさらに含む、実施形態31に記載のSTA。
サブキャリアマッピングユニットと、
逆高速フーリエ変換(IFFT)ユニットと、
時間領域フィルタリングユニットと、
並列直列変換器(P/S)ユニットと
を含むプロセッサ。
をさらに含む、実施形態36乃至38のいずれか一項に記載のプロセッサ。
をさらに含む、実施形態36乃至39のいずれか一項に記載のプロセッサ。
47.実施形態36乃至43のいずれか一項に記載のプロセッサを含むeNode B(eNB)。
前記複数のSTAのサブセットを選択するステップと
を含む方法。
をさらに含む、実施形態50に記載の方法。
をさらに含む、実施形態50または51に記載の方法。
をさらに含む、実施形態50乃至52のいずれか一項に記載の方法。
をさらに含む、実施形態50乃至53のいずれか一項に記載の方法。
を含む方法。
をさらに含む、実施形態61に記載の方法。
をさらに含む、実施形態61または62に記載の方法。
をさらに含む、実施形態61乃至63のいずれか一項に記載の方法。
変化が事前に決定されたしきい値を超えるかどうかを判定するステップ
を含む、実施形態64に記載の方法。
をさらに含む、実施形態65に記載の方法。
をさらに含む、実施形態66に記載の方法。
をさらに含む、実施形態61乃至67のいずれか一項に記載の方法。
をさらに含む、実施形態68に記載の方法。
をさらに含む、実施形態68または69に記載の方法。
をさらに含む、実施形態70に記載の方法。
Claims (20)
- 米国電子技術者協会(IEEE)802.11アクセスポイント(AP)内で使用される方法であって、
第1の複数のステーション(STA)への直交周波数分割多元接続(OFDMA)ダウンリンク(DL)送信および前記第1の複数のSTAのそれぞれからの複数のブロック肯定応答(BA)送信のネットワークアロケーションベクトル(NAV)値を判定するステップと、
前記第1の複数のSTAに前記OFDMAダウンリンク送信を送信するステップと、
前記第1の複数のSTAのそれぞれから1つのBAの、前記複数のBAを受信するステップと
を含む、方法。 - 前記複数のBAのそれぞれは、前記複数のSTAのそれぞれに関連するそれぞれのサブチャネル上で受信される、請求項1に記載の方法。
- OFDMAダウンリンク情報は、DL COBRA(coordinated orthogonal block-based resource allocation)フレーム内で送信される、請求項1に記載の方法。
- 前記COBRAフレームは、グループIDを示すシグナル(SIG)フィールドを含む、請求項3に記載の方法。
- 前記COBRAフレームは、複数のフィールドを含むCOBRAコントローラインフォメーションエレメント(IE)を含み、前記複数のフィールドは、前記APがCOBRA APであることを示すフィールドと、前記第1の複数のSTAのそれぞれの送信電力を示すフィールドと、ベーシックサービスセット(BSS)内で使用可能な直交ブロックに関する情報を示すフィールドと、出発時刻(TOD)タイムスタンプを示すフィールドと、出発時刻(TOD)クロックレートを示すフィールドとを含む、請求項3に記載の方法。
- COBRAコントローリインフォメーションエレメント(IE)を含むフレームを受信するステップであって、前記COBRAコントローリIEは、圧縮されたまたは未圧縮の直交ブロックフィードバックを示すフィールドを含む、ステップ
をさらに含む、請求項1に記載の方法。 - 前記DL COBRAフレームは、複数のフィールドを含むCOBRAグループ管理インフォメーションエレメント(IE)を含む、請求項3に記載の方法。
- 前記複数のフィールドは、メンバシップ数を示す第1のフィールドと、それぞれのSTAのグループメンバシップに関連する情報を示す複数の第2のフィールドとを含む、請求項7に記載の方法。
- 各第2のフィールドは、COBRA送信に参加する時のそれぞれのSTAによる使用のための遅延を示す情報を含む、請求項8に記載の方法。
- 米国電子技術者協会(IEEE)802.11ステーション(STA)で使用される方法であって、
アクセスポイント(AP)に、アップリンク(UL)直交周波数分割多元接続(OFDMA)UL送信機会(TXOP)の要求を送信するステップであって、前記OFDMA UL TXOPは、前記APに関連する複数のSTAと共有される、ステップと、
前記APからフレームを受信するステップであって、前記フレームは、無線媒体が前記OFDMA UL TXOP送信に使用可能であることを示し、前記フレームは、前記STAおよび前記複数のSTAの時間オフセット情報を含む、ステップと、
前記時間オフセット情報に基づいて、前記UL OFDMA TXOP中に前記APにパケットデータを送信するステップと
を含む、方法。 - 前記フレームは、DL COBRA(coordinated orthogonal block-based resource allocation)フレームである、請求項10に記載の方法。
- 前記COBRAフレームは、グループIDを示すシグナル(SIG)フィールドを含む、請求項11に記載の方法。
- 前記COBRAフレームは、複数のフィールドを含むCOBRAコントローラインフォメーションエレメント(IE)を含む、請求項11に記載の方法。
- アクセスポイント(AP)に要求を送信するように構成された送信器であって、前記要求は、アップリンク(UL)直交周波数分割多元接続(OFDMA)UL送信機会(TXOP)に関し、前記OFDMAアップリンクTXOPは、前記APに関連する複数のSTAと共有される、送信器と、
前記APからフレームを受信するように構成された受信器であって、前記フレームは、無線媒体が前記OFDMA UL TXOP送信に使用可能であることを示し、前記フレームは、前記STAおよび前記複数のSTAの時間オフセット情報を含む、受信器と、
を備え、前記送信器は、前記時間オフセット情報に基づいて、前記UL OFDMA TXOP中に前記APにパケットデータを送信するようにさらに構成された、米国電子技術者協会(IEEE)802.11ステーション(STA)。 - 前記受信器は、DL COBRA(coordinated orthogonal block-based resource allocation)フレームとして前記フレームを受信するように構成される、請求項14に記載のSTA。
- 前記受信器は、前記COBRAフレームを受信するように構成され、前記COBRAフレームは、グループIDを示すシグナル(SIG)フィールドを含む、請求項15に記載のSTA。
- 前記受信器は、前記COBRAフレームを受信するように構成され、前記COBRAフレームは、複数のフィールドを含むCOBRAコントローラインフォメーションエレメント(IE)を備える、請求項15に記載のSTA。
- 第1の複数のステーション(STA)への直交周波数分割多元接続(OFDMA)ダウンリンク(DL)送信および前記第1の複数のSTAのそれぞれからの複数のブロック肯定応答(BA)送信に関するネットワークアロケーションベクトル(NAV)値を判定するように構成されたプロセッサと、
前記OFDMAダウンリンク送信を前記第1の複数のSTAに送信するように構成された送信器と、
前記第1の複数のSTAのそれぞれから1つのBAの、前記複数のBAを受信するように構成された受信器と、
を備えた米国電子技術者協会(IEEE)802.11アクセスポイント(AP)。 - 前記受信器は、前記複数のSTAのそれぞれに関連するそれぞれのサブチャネル上で前記複数のBAのそれぞれを受信するように構成される、請求項18に記載のAP。
- 前記送信器は、DL COBRA(coordinated orthogonal block-based resource allocation)フレーム内でOFDMAダウンリンク情報を送信するように構成される、請求項18に記載のAP。
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261640219P | 2012-04-30 | 2012-04-30 | |
US61/640,219 | 2012-04-30 | ||
US201261724438P | 2012-11-09 | 2012-11-09 | |
US61/724,438 | 2012-11-09 | ||
US201361751453P | 2013-01-11 | 2013-01-11 | |
US61/751,453 | 2013-01-11 | ||
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EP3425839A1 (en) | 2019-01-09 |
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CN104321998A (zh) | 2015-01-28 |
JP2018093486A (ja) | 2018-06-14 |
KR20170001730A (ko) | 2017-01-04 |
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JP2016154340A (ja) | 2016-08-25 |
US20210204254A1 (en) | 2021-07-01 |
EP4418616A2 (en) | 2024-08-21 |
WO2013165582A1 (en) | 2013-11-07 |
KR20180094146A (ko) | 2018-08-22 |
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