Apparatus and method for estimating a...

Details Apparatus and method for estimating a... Apparatus and method for estimating a...

2005-06-30

2009-10-20

Tran, Khanh C (Department: 2611)

Pulse or digital communications

Testing

Signal noise

C375S346000

Reexamination Certificate

active

07606299

ABSTRACT:
In an apparatus for estimating a Carrier-to-Interference-and-Noise Ratio (CINR) in a communication system, received signals are blocked based on sub-carriers with similar channel characteristics. Interference and noise levels and true received signal levels are computed on a block-by-block basis from the blocked received signals. CINRs are estimated on a block-by-block basis using ratios between the computed interference and noise levels and the computed true received signal levels. The apparatus can estimate a CINR for all channels even when the channel characteristics of the sub-carriers of the received signals are not similar to each other.

REFERENCES:
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patent: 2003/0218999 (2003-11-01), Ren et al.
patent: 2005/0164644 (2005-07-01), Shinoi et al.
patent: 2005/0254563 (2005-11-01), Arima

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