Method for identifying bad frames

Details Method for identifying bad frames Method for identifying bad frames

2006-05-09

2006-05-09

Lamarre, Guy (Department: 2138)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S746000, C704S200000, C706S014000, C375S341000

Reexamination Certificate

active

07043678

ABSTRACT:
The present invention discloses a method and device for identifying unusable data blocks (bad frames) during communication in a network. The method comprises the steps of determining (S1) a classifier (CL_C) in a current data block, calculating (S3) a mean (M) of classifiers (CL—1to CL_N) of a predetermined number (N) of data blocks, calculating (S4) a standard deviation (σ) of the classifiers (CL—1to CL_N), calculating (S5) a threshold for identifying bad frames on the basis of the mean (M) and the standard deviation (σ) of the classifiers (CL—1to CL_N), and distinguishing (S6) whether the current data block is usable or not on the basis of a comparison of the threshold (TH) and the current classifier (CL_C). By the method and the device, changing conditions of a radio channel can be taken into account quickly.

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