Method for determining a channel quality metric in a receiver

Details Method for determining a channel quality metric in a receiver Method for determining a channel quality metric in a receiver

1993-12-27

1996-02-20

Rogers, Scott A.

Pulse or digital communications

Testing

375340, 371 43, H04B 346, H03D 100, G06F 1110

Patent

active

054935849

ABSTRACT:
In a receiver, a channel quality metric (220) is determined by demodulating a received second stream of discrete data elements (205) using a received first stream of discrete data elements (203) to produce a demodulated second stream of discrete data elements (212). The demodulated second stream is decoded, leading to an estimate of the second stream of discrete data elements (214). The estimate of the second stream is then re-encoded and the resulting re-encoded stream of discrete data elements (216) is compared with the demodulated second stream to produce the channel quality metric. Derived in this manner, the channel quality metric provides a method for detecting decoding errors in a stream of critical data elements.

REFERENCES:
patent: 5056117 (1991-10-01), Gitlin
patent: 5159608 (1992-10-01), Falconer
patent: 5195107 (1993-04-01), Wei
patent: 5384809 (1995-01-01), Yagi

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