wifi6 - TWT

收錄於: Ameba 的 100 篇
              wifi6 list

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參考: 802.11ax前瞻18
          How Will Target Wake Time Help Mobile Devices And IoT In 802.11ax?
          802.11ax fundamentals: Target Wake Time (TWT)
          CTS 164: 802.11ax Target Wake Time
          Aruba 802.11ax White Paper

Ref: https://www.wlanpedia.org/tech/11ax/11ax-twt/
        https://www.cleartosend.net/802-11ax-target-wake-time/

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省電

TWT 三種工作模式

1. Individual TWT
    client 和 AP 協商時間
2. Broadcast TWT
    AP 決定
3. Opportunistic TWT
    沒有協商, 每個 beacon, AP 公告 TWT 時間, client 可決定是否甦醒傳輸

individual TWT 和 broadcast TWT 可以同時使用

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TWT SP (Service Period)


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TWT concept

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TWT setup

TWT requesting : STA who requests (Request/Suggest/Demand) TWT setup
TWT responding : STA who responds (Accept/Reject) to TWT requesting

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TWT Responder Support

hostapd - CONFIG_IEEE80211AX

HE_MACCAP_TWT_RESPONDER

Beacon Frame:

HE MAC Capability Information

802.11ax Aerohive AP (AP630)

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TWT element