Signal detection and power measurement with multi-band filter to mitigate narrowband interference
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United States of America Patent
Stats
-
Apr 3, 2018
Issued Date -
N/A
app pub date -
Oct 18, 2016
filing date -
Oct 21, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Various aspects of this disclosure describe detecting a signal and measuring power with a multi-band filter. Examples include a signal detection and power measurement module in a receiver capable of detecting a training signal and calculating a reliable power measurement in the presence of narrowband interference. A received signal is filtered by a multi-band filter comprising a plurality of sub-band filters. For instance, sub-band filters may be bandpass filters with non-overlapping pass-bands. A training signal is detected by comparing powers of each of the outputs of the sub-band filters to a plurality of thresholds. For example, each sub-band may be assigned a different threshold value. Responsive to detecting a training signal, a power measurement is determined from at least one sub-band filter output. A gain is set based on the determined power measurement, and applied in the receiver.
First Claim
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International Classification(s)
- 2016 Application Filing Year
- H04L Class
- 37326 Applications Filed
- 27972 Patents Issued To-Date
- 74.94 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 5 Citation Count
- H04L Class
- 17.38 % this patent is cited more than
- 7 Age
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