Invention Grant
US08665795B2 Method and system for providing beamforming feedback in wireless communication systems
有权
在无线通信系统中提供波束成形反馈的方法和系统
- Patent Title: Method and system for providing beamforming feedback in wireless communication systems
- Patent Title (中): 在无线通信系统中提供波束成形反馈的方法和系统
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Application No.: US13277450Application Date: 2011-10-20
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Publication No.: US08665795B2Publication Date: 2014-03-04
- Inventor: John W Ketchum , Sanjiv Nanda , Arnaud Meylan , Shravan K Surineni
- Applicant: John W Ketchum , Sanjiv Nanda , Arnaud Meylan , Shravan K Surineni
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: QUALCOMM IP Department
- Agent James Hunt Yancey, Jr.
- Main IPC: H04Q7/00
- IPC: H04Q7/00

Abstract:
Techniques to support beamforming for stations in a wireless network are described. A station may support beamforming with implicit or explicit feedback by having capabilities to transmit and receive sounding frames, responding to training request by sending a sounding frame, and responding to request for explicit feedback. In one explicit beamforming embodiment, the station may send a first frame with an explicit feedback request and may also send a Null Data Packet (NDP) having at least one training field but no data field. The station may receive a second frame with explicit feedback, which may be derived based on the NDP. The station may derive steering information based on explicit feedback and may then send a steered frame with beamforming based on steering information. Other aspects, embodiments, and features are also claimed and described.
Public/Granted literature
- US20120127899A1 METHOD AND SYSTEM FOR PROVIDING BEAMFORMING FEEDBACK IN WIRELESS COMMUNICATION SYSTEMS Public/Granted day:2012-05-24
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