Apparatus for interference cancellation in MIMO receiver, method for interference cancellation in MIMO receiver and MIMO receiver

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United States of America Patent

PATENT NO 9231632
APP PUB NO 20140355708A1
SERIAL NO

14288444

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Abstract

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An interference canceller (500) includes an interference cancellation coefficient calculator (510) configured to calculate an interference cancellation coefficient using a received value located in a location of a reference signal (RS) from a channel estimate H calculated by a channel estimator and a received signal r delivered from an FFT, an interference cancellation filter (520) configured to cancel interference in the received signal and the channel estimate using the calculated interference cancellation coefficient, an increment or decrement operator (530) configured to increase or decrease the received signal and the channel estimate by λ times; an interference cancellation output controller (540) configured to receive a channel estimate before interference cancellation and a channel estimate after interference cancellation to compare a signal before the interference cancellation with a signal after the interference cancellation and then determine whether to deliver the signal before applying the interference cancellation or the signal after applying the interference cancellation, and a switch (550) configured to receive a control signal from the interference cancellation output controller (540).

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Patent Owner(s)

Patent OwnerAddress
GCT SEMICONDUCTOR INC2121 RINGWOOD AVENUE SAN JOSE CA 95131

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jang, Ji-Ho San Jose, US 20 681
Kang, Young-Hwan Seoul, KR 11 26
Nam, Dae-Seok San Jose, US 1 8

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