Apparatus and method for decoding

Details Apparatus and method for decoding Apparatus and method for decoding

2005-07-26

2005-07-26

Wamsley, Patrick (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

C708S205000

Reexamination Certificate

active

06922159

ABSTRACT:
Coding section205recodes decoded data stored in decoded data storage section204, data conversion section206converts data “0” and “1” output from coding section205to “1” and “−1” respectively, sum-of-product calculation section207multiplies the data output from data conversion section206by the demodulated data (soft decision value) stored in demodulated data storage section201and then calculates the sum of the products for 1 TTI and stores the sum-of-product result for each data rate, data rate decision section208decides the data rate corresponding to a maximum value of the sum-of-product results as the data rate of the demodulated data. This makes it possible to improve the accuracy of data rate decision and reduce decoding errors of a received signal.

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