Burst noise detection and pilot selection

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United States of America Patent

PATENT NO 9313070
APP PUB NO 20150201422A1
SERIAL NO

14155859

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Techniques are presented herein for detecting burst noise in a received orthogonal frequency division multiplex (OFDM) transmission. An OFDM transmission is received that includes pilots transmitted at different instances of time but on the same subcarrier during a predetermined time interval such that there are a plurality of different pairs of pilots that are on the same subcarriers during the predetermined time interval. For each possible pair of pilots, an equalized pilot is generated using received values for first and second pilots of the pair. A signal-to-noise ratio is computed for each equalized pilot. A determination is made as to which pilots, if any, are affected by burst noise by comparing the signal-to-noise ratio among the plurality of equalized pilots. Pilots determined to be affected by burst noise are removed from a channel response computation.

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Patent Owner(s)

  • CISCO TECHNOLOGY, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jin, Hang Plano, US 171 2884

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