Invention Grant
US08705443B2 System and method for reduced feedback in multiuser multiple input, multiple output wireless communications 有权
用于多用户多输入,多输出无线通信的减少反馈的系统和方法

System and method for reduced feedback in multiuser multiple input, multiple output wireless communications
Abstract:
A system and method for reduced feedback in MU-MIMO communications is provided. A method for transmitter operations includes transmitting a pilot signal, receiving channel information feedback from a set of K communications devices served by a transmitter, where K is a non-negative integer value and K≧2, selecting M communications devices out of the set of K communications devices, where M is a non-negative integer value and M≦K, computing a precoder for each of the M selected communications devices based on the channel information feedback, and simultaneously transmitting information to the M selected communications devices. The channel information feedback includes partial information for a communications channel between the transmitter and a communications device, the selecting being based on the channel information feedback, and the information transmitted to each communications device in the M selected communications devices being precoded using a computed precoder associated with the communications device.
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