JP2015080230A - 無線通信システムにおけるパワーセービング方法 - Google Patents
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
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- H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
- H04W52/262—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account adaptive modulation and coding [AMC] scheme
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- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
Description
また、デジタルフィルタの帯域制限フィルタが再構成されることができる。また、同時に受信部のデシメータの動作周波数が再構成される。
また、キャリアセンシングを検出するためにMACキャリアセンシング有効(MAC CS valid)情報から確認することができる。このような区間は、ドーズモードが開始される時点までである。
また、データフレーム713の受信に適するように再構成されたノード2は、データフレーム713を受信した後、正しく復元された場合、ACKフレーム714を送信する。
Claims (6)
- 無線ローカルエリアネットワークにて、チャネルにアクセスする方法であって、
ネットワーク割り当てベクトルを割り当てるために、送信先ステーションにより、複数の送信要求(RTS)フレームがボンディングされた1つのフレームを送信元ステーションから第1のバンド幅で受信するステップと、
前記複数のRTSフレームに応答して、前記送信先ステーションにより、1つの送信クリア(CTS)フレームを前記送信元ステーションへ第2のバンド幅で送信するステップと、を備え、
前記第1のバンドは、複数の第1の20MHzバンドを含み、前記複数のRTSフレームのそれぞれは、前記複数の第1の20MHzバンドのそれぞれと対応し、
前記第2のバンドは、1つの20MHzの第2のバンドを含み、前記CTSフレームは、前記20MHzの第2のバンドと対応し、
前記20MHzの第2のバンドの数は、前記複数の第1の20MHzバンドの数未満であり、
前記複数のRTSフレームのそれぞれは、伝送モード情報が存在するか否かを表すダイナミックチャネルバンド幅割り当てビットを含み、
前記ダイナミックチャネルバンド幅割り当てビットが、前記伝送モード情報が存在することを表す場合、前記複数のRTSフレームのそれぞれは、前記複数の第1の20MHzバンドのバンド幅の全体を示す前記伝送モード情報を含む、方法。 - 前記CTSフレームは、前記第2の20MHzバンドのバンド幅全体を示す伝送モード情報を含む、請求項1に記載の方法。
- 各RTSフレームにおける前記伝送モード情報は、40MHz,80MHzおよび160MHzのうちの1つを示す、請求項1又は2に記載の方法。
- 無線ローカルエリアネットワークにて、チャネルにアクセスする装置であって、
伝送回路と、
前記伝送回路に結合され、
ネットワーク割り当てベクトルを割り当てるために、複数の送信要求(RTS)フレームがボンディングされた一つのフレームを送信元ステーションから第1のバンドで受信するとともに、
前記複数のRTSフレームに応答して、1つの送信クリア(CTS)フレームを前記送信元へ第2のバンドで送信する
ように構成された制御部と、を備え、
前記第1のバンドは、複数の第1の20MHzバンドを含み、前記複数のRTSフレームのそれぞれは、前記複数の第1の20MHzバンドのそれぞれと対応し、
前記第2のバンドは、1つの20MHzの第2のバンドを含み、前記CTSフレームは、前記20MHzの第2のバンドと対応し、
前記20MHzの第2のバンドの数は、前記複数の第1の20MHzバンドの数未満であり、
前記複数のRTSフレームのそれぞれは、伝送モード情報が存在するか否かを表すダイナミックチャネルバンド幅割り当てビットを含み、
前記ダイナミックチャネルバンド幅割り当てビットが、前記伝送モード情報が存在することを表す場合、前記複数のRTSフレームのそれぞれは、前記複数の第1の20MHzバンドのバンド幅の全体を示す前記伝送モード情報を含む、装置。 - 前記CTSフレームは、前記第2の20MHzバンドのバンド幅全体を示す伝送モード情報を含む、請求項4に記載の装置。
- 各RTSフレームにおける前記伝送モード情報は、40MHz、80MHzおよび160MHzのうちの1つを示す、請求項4又は5に記載の装置。
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