Iterative interference cancellation system and method

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United States of America Patent

PATENT NO 8472877
APP PUB NO 20070093261A1
SERIAL NO

11407570

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Abstract

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A system and method for Interference Cancellation (IC). One aspect relates to iterative interference cancellation with iterative finger delay adaptation. The interference cancellation method comprises receiving multi-paths of a signal; and performing iterative interference cancellation to remove multi-path interference, wherein the performing iterative IC comprises estimating a Signal-to-Interference-plus-Noise Ratio (SINR) at each of a plurality of pre-determined rake receiver finger delays, and performing successive Channel Estimation (CE) and IC on rake receiver fingers according to their estimated SINRs, and wherein the CE of a next finger does not start until interference of a previous finger is removed from a sample buffer. The method may further comprise improving estimated rake receiver finger delay, and each iteration decreases the amount of interference observed by each finger.

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Patent Owner(s)

  • QUALCOMM INCORPORATED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Jinghu San Diego, US 22 361
Hou, Jilei Carlsbad, US 160 2634
Smee, John Edward San Diego, US 223 3304
Soriaga, Joseph B La Jolla, US 21 525

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