Invention Grant
US08204014B2 Method and system for codebook-based closed-loop MIMO using common pilots and analog feedback 有权
使用公共导频和模拟反馈的基于码本的闭环MIMO的方法和系统

Method and system for codebook-based closed-loop MIMO using common pilots and analog feedback
Abstract:
A method and system that enables the usage of sounding-based feedback or analog feedback in a MIMO communication system with non-beamformed or broadcast pilot symbols is disclosed. The mobile station may employ a feedback channel to send a sounding waveform to a base station, a feedforward channel to receive from the base station codebook weights derived from the send sounding waveform, a receiver to receive communication from the base station, and a processor to detect beamformed data from the received communication and received codebook weights from the base station. The base station processes the sounding waveform to determine codebook weights on groups of subcarriers. Additionally, the base station transmits the beamformed payload and broadcast pilots to the mobile station.
Information query
Patent Agency Ranking
0/0