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公开(公告)号：US10237026B2
公开(公告)日：2019-03-19
申请号：US15895261
申请日：2018-02-13
发明人： Ron Porat , Sriram Venkateswaran
IPC分类号： H04L5/00 , H04W72/04 , H04B7/06 , H04B7/0408 , H04B7/0452 , H04L12/28 , H04L12/46 , H04L27/26
摘要： A wireless communication device (alternatively, device, WDEV, etc.) includes at least one processing circuitry configured to support communications with other WDEV(s) and to generate and process signals for such communications. In some examples, the device includes a communication interface and a processing circuitry, among other possible circuitries, components, elements, etc. to support communications with other WDEV(s) and to generate and process signals for such communications. The WDEV receives a null data packet (NDP) announcement frame that specifies a sub-carrier (SC) or tone grouping factor, a communication channel bandwidth, and other WDEV(s) to respond with beamforming feedback. The WDEV process the NDP announcement frame to determine it is to respond, and if so, then receives a NDP sounding frame that includes long training fields (LTFs) and pilots at predetermined locations and generates beamforming feedback of communication channel estimates at SCs as determined based on a sub-carrier roster look up table (LUT).
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公开(公告)号：US20180175979A1
公开(公告)日：2018-06-21
申请号：US15895261
申请日：2018-02-13
发明人： Ron Porat , Sriram Venkateswaran
IPC分类号： H04L5/00 , H04W72/04 , H04L27/26 , H04L12/46 , H04L12/28 , H04B7/0408 , H04B7/06 , H04B7/0452
CPC分类号： H04L5/001 , H04B7/0408 , H04B7/0452 , H04B7/0617 , H04B7/0636 , H04L5/0007 , H04L5/0023 , H04L5/0041 , H04L5/0048 , H04L5/0064 , H04L5/0094 , H04L12/2854 , H04L12/4604 , H04L25/02 , H04L27/2602 , H04L27/261 , H04W72/0453
摘要： A wireless communication device (alternatively, device, WDEV, etc.) includes at least one processing circuitry configured to support communications with other WDEV(s) and to generate and process signals for such communications. In some examples, the device includes a communication interface and a processing circuitry, among other possible circuitries, components, elements, etc. to support communications with other WDEV(s) and to generate and process signals for such communications. The WDEV receives a null data packet (NDP) announcement frame that specifies a sub-carrier (SC) or tone grouping factor, a communication channel bandwidth, and other WDEV(s) to respond with beamforming feedback. The WDEV process the NDP announcement frame to determine it is to respond, and if so, then receives a NDP sounding frame that includes long training fields (LTFs) and pilots at predetermined locations and generates beamforming feedback of communication channel estimates at SCs as determined based on a sub-carrier roster look up table (LUT).
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