JP2019071618A - 受信されたフレームに応答して確認応答を送信するための方法および装置 - Google Patents
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
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Abstract
Description
Claims (15)
- 局(STA)であって、
関連付けID(AID)を記憶するように構成されたメモリと、
アクセスポイント(AP)から送信要求(RTS)フレームを受信するように構成された受信機と、
前記RTSフレームに対し、送信可(CTS)フレームにより応答するように構成された送信機と、
前記APから、オプションフィールドを含む制御フレームを受信するように構成された前記受信機であって、前記オプションフィールドは、前記制御フレームがSTAのグループに対するものであることを示し、および前記制御フレームがブロック確認応答(ブロックACK)制御フレームであることをさらに示す、前記受信機と、
前記APに、データユニットを送信するように構成された前記送信機であって、前記データユニットは、前記データユニットの優先度と関連付けられたトラフィックID(TID)を有する、前記送信機と、
前記APから、ブロック確認応答(ブロックACK)フレームを受信するように構成された前記受信機であって、前記ブロックACKフレームは、ブロードキャストアドレスにアドレス指定され、ならびに複数のサブフィールドを含み、前記複数のサブフィールドの各々は、AIDおよびTIDを含む、前記受信機と、
前記複数のサブフィールドのうちの少なくとも1つのAIDが前記記憶されたAIDに一致することを条件に、前記データユニットが前記APによって正しく受信されたかどうかを判定するように構成されたプロセッサと
を備えたことを特徴とするSTA。 - 前記ブロックACKフレームは、複数のデータ媒体アクセス制御(MAC)サービスデータユニット(MSDU)に対応する情報を含むことを特徴とする請求項1に記載のSTA。
- 前記制御フレームは、前記STAの送信がブロック確認応答されることになることを示すことを特徴とする請求項1に記載のSTA。
- 前記データユニットが前記APによって正しく受信されたかどうかの前記判定は、前記データユニットの前記優先度と関連付けられた前記TIDに基づいていることを特徴とする請求項1に記載のSTA。
- 前記データユニットが前記APによって正しく受信されたかどうかの前記判定は、前記ブロックACKフレームに含まれる開始シーケンス番号に基づいていることを特徴とする請求項1に記載のSTA。
- 前記データユニットが前記APによって正しく受信されたかどうかの前記判定は、前記ブロックACKフレームに含まれるビットマップに基づいていることを特徴とする請求項1に記載のSTA。
- 前記ブロックACKフレームは、別のSTAのAIDに対応するAIDビット、別のデータユニットに対応するTID、別の開始シーケンス番号、および別のビットマップを含むことを特徴とする請求項5に記載のSTA。
- 前記ブロックACKフレームの受信は、前記データユニットの送信からの遅延時間の次に来ることを特徴とする請求項1に記載のSTA。
- 送信要求(RTS)フレームを送信するように構成された送信機と、
前記送信されたRTSフレームに応答して、送信可(CTS)フレームを受信するように構成された受信機と、
オプションフィールドを含む制御フレームを送信するように構成された前記送信機であって、前記オプションフィールドは、前記制御フレームが局(STA)のグループに対するものであることを示し、および前記制御フレームがブロック確認応答(ブロックACK)制御フレームであることをさらに示す、前記送信機と、
第1のSTAから、第1のデータユニットを受信するように構成された前記受信機であって、前記第1のデータユニットは、第1のデータを含む、前記受信機と、
第2のSTAから、第2のデータユニットを受信するように構成された前記受信機であって、前記第2のデータユニットは、第2のデータを含む、前記受信機と、
前記第1のSTAおよび前記第2のSTAに、確認応答(ACK)フレームを送信するように構成された前記送信機であって、前記ACKフレームは、ブロードキャストアドレスにアドレス指定され、および前記ACKフレームがマルチトラフィックID(マルチTID)ブロックACKフレームフォーマットまたは別のACKフレームフォーマットであるかどうかを示すフィールドを含む、前記送信機と
を備えたことを特徴とするアクセスポイント(AP)。 - 前記ACKフレームは、前記第1のデータおよび前記第2のデータが前記APによって正しく受信されたかどうかのインジケーションを含むことを特徴とする請求項9に記載のAP。
- 前記ACKフレームは、前記第1のSTAのAIDに対応するAIDビット、前記第1のデータに対応する第1のTID、第1の開始シーケンス番号、および第1のACKビットマップを含むことを特徴とする請求項9に記載のAP。
- 前記ACKフレームは、前記第2のSTAのAIDに対応するAIDビット、前記第2のデータに対応する第2のTID、第2の開始シーケンス番号、および第2のACKビットマップをさらに含むことを特徴とする請求項11に記載のAP。
- 前記ACKフレームは、ブロックACKフレームタイプであることを特徴とする請求項9に記載のAP。
- 前記第1のACKビットマップの各々のビットは、確認応答(ACK)または否定ACK(NACK)を示すことを特徴とする請求項11に記載のAP。
- 前記第1のTIDは、前記第2のTIDとは異なることを特徴とする請求項12に記載のAP。
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