Techniques for efficient acknowledgement for UL MU MIMO and uplink OFDMA in wireless networks

摘要

An embodiment of the present invention provides a method of supporting acknowledgement transmissions for Uplink (UL) Multi-user Multiple Input Multiple Output (MU MIMO) in wireless networks, comprising, enabling an AP operable in the wireless network to send back acknowledgements to different wireless stations (STAs) in communication with said AP either sequentially or simultaneously by defining a new block ack (BAs) type for multiple STAs.

主权项

1. A method of supporting acknowledgement transmissions comprising:
communicating using a wireless network that supports Uplink (UL) Multi-user Multiple Input Multiple Output (MU MIMO) or UL Orthogonal Frequency-Division Multiple Access (OFDMA); enabling an access point (AP) operable in said wireless network to send back acknowledgements to different wireless stations (STAs) in communication with said AP either sequentially or simultaneously by defining a new block ack (BAs) type to acknowledge data frames received for multiple STAs, wherein the new BAs type contains a BA information field and a BA control field; wherein with the new BAs type the AP may broadcast or multicast one BA frame that contains information for all STAs from which the AP has received an aggregate MAC protocol data unit (A-MPDU).