Collision detection and backoff window adaptation for multiuser mimo transmission

Certain aspects of the present disclosure generally apply to a wireless local area network (WLAN) where an access point (AP) has data to send to multiple stations (STAs). By using the Downlink Spatial Division Multiple Access (DL-SDMA) technique, the AP may send data at the same time towards multipl...

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Bibliographische Detailangaben
Hauptverfasser: Wentink, Maarten Menzo, IV, Sampath, Hemanth, Merlin, Simone, Jones, Vincent Knowles IV, Abraham, Santosh Paul
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:Certain aspects of the present disclosure generally apply to a wireless local area network (WLAN) where an access point (AP) has data to send to multiple stations (STAs). By using the Downlink Spatial Division Multiple Access (DL-SDMA) technique, the AP may send data at the same time towards multiple STAs. Certain aspects of the present disclosure provide techniques and apparatuses for detecting that a multiuser multiple-input multiple-output (MU-MIMO) transmission has suffered a collision and to adapting a contention window (CW) size for a backoff counter applied to a subsequent MU-MIMO transmission.