Intermediate rate applications of punctured convolutional...

Details Intermediate rate applications of punctured convolutional... Intermediate rate applications of punctured convolutional...

H - Electricity

03

M

H03M 13/23 (2006.01) H03M 7/00 (2006.01) H03M 13/00 (2006.01) H03M 13/25 (2006.01) H04L 1/00 (2006.01)

Patent

CA 2258351

A method and apparatus are provided for convolutionally encoding digital data with a rate 5/8 convolutional code. A standard rate 1/2 convolutional code is punctured to rate 5/8 using a puncture map of Image and octal generators 133, 171 wherein the constraint length K = 7. An incoming data stream is processed using the rate 5/8 code. In another embodiment, a rate 1/3 convolutional code is punctured to rate 5/8 using a puncture map of Image and octal generators 117, 135, 161 wherein the constraint length K = 7.

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