Invention Grant
- Patent Title: Feedback of channel information in a closed loop beamforming wireless communication system
- Patent Title (中): 闭环波束成形无线通信系统中信道信息的反馈
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Application No.: US11412388Application Date: 2006-04-27
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Publication No.: US08345732B2Publication Date: 2013-01-01
- Inventor: Matthew James Fischer , Joonsuk Kim , Christopher J. Hansen , Jason A. Trachewsky
- Applicant: Matthew James Fischer , Joonsuk Kim , Christopher J. Hansen , Jason A. Trachewsky
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Garlick & Markison
- Main IPC: H04L5/16
- IPC: H04L5/16
Abstract:
A method for feeding back transmitter beamforming information from a receiving wireless communication device to a transmitting wireless communication device includes a receiving wireless communication device receiving a preamble sequence from the transmitting wireless device. The receiving wireless device estimates a channel response based upon the preamble sequence and then determines an estimated transmitter beamforming unitary matrix based upon the channel response and a receiver beamforming unitary matrix. The receiving wireless device then decomposes the estimated transmitter beamforming unitary matrix to produce the transmitter beamforming information and then wirelessly sends the transmitter beamforming information to the transmitting wireless device.
Public/Granted literature
- US20060291544A1 Feedback of channel information in a closed loop beamforming wireless communication system Public/Granted day:2006-12-28
Information query
