Soft decision signal outputting receiver

Details Soft decision signal outputting receiver Soft decision signal outputting receiver

H - Electricity

04

L

H04L 1/00 (2006.01) H03M 13/41 (2006.01) H03M 13/45 (2006.01)

Patent

CA 2152315

A receive condition in burst transmission varies in units of a burst or a plurality of symbol times. The present invention provides a soft decision signal outputting receiver which can simply produce correct reliability information even if the receive condition varies while employing a simple reliability information production method. A demodulator demodulates a burst signal to obtain a hard decision signal. A time-varying reliability information production circuit receives information of a demodulation process from the demodulator 11 and produces reliability information regarding the hard decision signal. The time-varying reliability information production circuit receives signal quality information which reflects a receive condition for each burst or each plurality of symbol times, and changes, based on the signal quality information, a production method for reliability information or elements such as threshold levels to be used in a production method for each burst or each plurality of symbol times. A soft decision signal production circuit produces a soft decision signal from the hard decision signal and the reliability information.

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