JP7076452B2 - 向上された分散チャネルアクセスを使用する無線通信方法及びそれを使用する無線通信端末 - Google Patents
向上された分散チャネルアクセスを使用する無線通信方法及びそれを使用する無線通信端末 Download PDFInfo
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- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/02—Data link layer protocols
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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
-
- 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
- H04L5/0055—Physical resource allocation for ACK/NACK
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
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- H04W40/244—Connectivity information management, e.g. connectivity discovery or connectivity update using a network of reference devices, e.g. beaconing
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- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H04W—WIRELESS COMMUNICATION NETWORKS
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Description
Claims (8)
- ベース無線通信端末と無線で通信する無線通信端末において、
送受信部と、
プロセッサと、を含み、
前記プロセッサは、
1つ以上の無線通信端末の上り伝送をトリガーするトリガーフレームを受信し、前記上り伝送は直交周波数分割多元接続(OFDMA)を用いて実行され、
前記送受信部を使用して、前記トリガーフレームに応答して、前記上り伝送のためのトリガー基盤物理層プロトコルデータユニット(PPDU)を、前記ベース無線通信端末に送信し、
前記ベース無線通信端末が前記無線通信端末のマルチユーザ上り伝送の参加をトリガーするか否かに基づいて、チャネルにアクセスするために使用されるパラメータのセットであるパラメータセットを、第1パラメータセットから第2パラメータセットに転換し、
前記トリガー基盤PPDUに含まれるMACプロトコルデータユニット(MPDU)が即時応答を要請しない場合、前記トリガー基盤PPDUの送信が終了した時点で、前記MPDUのアクセスカテゴリに対して第2パラメータセットタイマーを設定し、
前記第2パラメータセットタイマーが満了すると、前記第2パラメータセットの適用を終了し、
前記無線通信端末がチャネルにアクセスする場合に維持されるパラメータセットにおける、前記無線通信端末が前記ベース無線通信端末に伝送するデータの優先度に対応するパラメータを用いて前記チャネルにアクセスする
ように構成されている、無線通信端末。 - 前記トリガー基盤PPDUが含むMPDUは、QoSデータフレームである
請求項1に記載の無線通信端末。 - 前記プロセッサは、
前記ベース無線通信端末からビーコンフレームを受信し、
前記第2パラメータセットタイマーの期間を示す情報を前記ビーコンフレームから獲得する
ように構成されている請求項1に記載の無線通信端末。 - 前記プロセッサは、
競争ウィンドウ(Contention Window、CW)のうちから無作為の整数値を算出し、
前記無作為の整数値に基づいてバックオフタイマーを設定し、
前記バックオフタイマーと予め指定されたスロットタイムに基づいて前記チャネルにアクセスする、
ように構成され、
前記パラメータセットは、
前記CWの最小値(CWmin)と前記CWの最大値(CWmax)を含む
請求項1に記載の無線通信端末。 - 前記パラメータセットは、
競争ウィンドウ(Contention Window、CW)の最小値(CWmin)と前記CWの最大値(CWmax)を含み、
前記プロセッサは、
前記CW内で無作為の整数値を算出し、
前記無作為の整数値に基づいてバックオフタイマーを設定し、
前記バックオフタイマーと予め指定されたスロットタイムに基づいて前記チャネルにアクセスし、
前記CWの値が、前記パラメータセットが変更された後に維持されている前記パラメータセットで伝送される前記データの優先度に対応する前記CWの前記CWmaxより大きければ、前記CWの値を前記CWmaxに設定する
ように構成されている請求項1に記載の無線通信端末。 - 前記プロセッサは、
キューに貯蔵されるデータのアクセスカテゴリに応じて区分される複数のキューを運営し、前記複数のキューそれぞれにおいてバックオフタイマーに当たる時間に基づいてチャネルにアクセスするバックオフ手順を行い、
前記キューに貯蔵されたデータがなく、前記キューに当たるバックタイマー0であれば、前記バックオフタイマーのスロットの境界でいかなる動作も行わない、
ように構成され、
前記バックオフタイマーは、競争ウィンドウ(CW)のうちから算出された無作為の整数値に基づいて設定され、前記予め指定されたスロットタイムの間に前記チャネルが遊休であれば減少される
請求項1に記載の無線通信端末。 - 前記プロセッサは、
前記キューに貯蔵されたデータがなく、前記キューに当たる前記バックオフタイマーが0であれば、前記バックオフタイマーを0に維持する
ように構成されている請求項6に記載の無線通信端末。 - ベース無線通信端末と無線で通信する無線通信端末の動作方法において、
1つ以上の無線通信端末の上り伝送をトリガーするトリガーフレームを受信するステップであって、前記上り伝送は直交周波数分割多元接続(OFDMA)を用いて実行される、ステップと、
前記上り伝送のためのトリガー基盤物理層プロトコルデータユニット(PPDU)を、前記ベース無線通信端末に送信するステップと、
前記ベース無線通信端末が前記無線通信端末のマルチユーザ上り伝送の参加をトリガーする否かに基づいて、チャネルアクセスのために使用されるパラメータのセットであるパラメータセットを、第1パラメータセットから第2パラメータセットに転換するステップと、
前記トリガー基盤PPDUに含まれるMPDUが即時応答を要請しない場合、前記トリガー基盤PPDUの送信が終了した時点で前記MPDUのアクセスカテゴリに対して第2パラメータセットタイマーを設定するステップと、
前記第2パラメータセットタイマーが満了すると、前記第2パラメータセットの適用を終了するステップと、
前記無線通信端末がチャネルにアクセスする場合に維持されるパラメータセットにおける、前記ベース無線通信端末に伝送するデータの優先度に対応するパラメータを用いて前記チャネルにアクセスするステップと、
前記チャネルを介して前記データを伝送するステップと、を含む
動作方法。
Applications Claiming Priority (15)
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KR10-2016-0114822 | 2016-09-07 | ||
KR20160114822 | 2016-09-07 | ||
KR20160116877 | 2016-09-10 | ||
KR10-2016-0116877 | 2016-09-10 | ||
KR20160116965 | 2016-09-12 | ||
KR10-2016-0116965 | 2016-09-12 | ||
KR10-2016-0117898 | 2016-09-13 | ||
KR20160117898 | 2016-09-13 | ||
KR10-2016-0122488 | 2016-09-23 | ||
KR20160122488 | 2016-09-23 | ||
KR20160147189 | 2016-11-06 | ||
KR10-2016-0147189 | 2016-11-06 | ||
KR10-2017-0022227 | 2017-02-20 | ||
KR20170022227 | 2017-02-20 | ||
PCT/KR2017/009841 WO2018048229A1 (ko) | 2016-09-07 | 2017-09-07 | 향상된 분산 채널 액세스를 사용하는 무선 통신 방법 및 이를 사용하는 무선 통신 단말 |
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JP2019527005A JP2019527005A (ja) | 2019-09-19 |
JP2019527005A5 JP2019527005A5 (ja) | 2019-11-07 |
JP7076452B2 true JP7076452B2 (ja) | 2022-05-27 |
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