US Patent No. 10,342,047

REVERSE DIRECTION FOR MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATIONS


Patent No. 10,342,047
Issue Date July 02, 2019
Title Reverse Direction For Multi-user Multiple Input Multiple Output Communications
Inventorship Ou Yang, Santa Clara, CA (US)
Oren Kedem, Modiin Maccabim-Reut (IL)
Solomon Trainin, Haifa (IL)
Chittabrata Ghosh, Freemont, CA (US)
Carlos Cordeiro, Portland, OR (US)
Laurent Cariou, Portland, OR (US)
Assignee Intel IP Corporation, Santa Clara, CA (US)

Claim of US Patent No. 10,342,047

1. A device, the device comprising a memory and a processing circuitry configured to:determine a first reverse direction indication to be included in a frame for transmission to one or more devices in a multi-user multiple input multiple output (MU-MIMO) communication;
cause to wirelessly transmit the frame to a first device of the one or more devices; identify an acknowledgment frame received from the first device, wherein the acknowledgement frame includes at least in part an indication of one or more aggregated data frames;
aggregate a quality of service (QoS) Null Frame with an acknowledgment request frame to generate an aggregated frame, wherein a second reverse direction is included in the QoS Null Frame to indicate that a second station device is permitted to send uplink data; and
cause to send the aggregated frame to a second device of the one or more devices.