Innowireless Co., Ltd.

Jongho Lim

Jinsoup Joung

Joohyeong Lee

Ji Hye Shin

Jaehwan Kim

Seungkeun Yook

An apparatus for generating indexes of an interleaver for input data comprises: a main processor for calculating an index for a predetermined bit of the input data; and an index operator for receiving the index calculated by the main processor, calculating in parallel indexes for bits after the predetermined bit, and deriving a plurality of indexes. The main processor calculates the index for ito (i+15)bits of the input data where i is an integer equal to or larger than 0, and transfers a result of (128*f)modK to the index operator. The index operator calculates an index for an (i+j+16)bit where j is an integer which satisfies 0&#x2266;j&#x2266;7 by using an equation of &#x3a0;(i+j+16)=(2*&#x3a0;(i+j+8)&#x2212;&#x3a0;(i+j)+128*f)modK where K is a size of the input data and fis a coefficient calculated from K.

Apparatus and method for generating interleaver index

A turbo encoder apparatus includes: a first element encoder for receiving an input of a bitstream of the data, encoding the input of the bitstream of the data, and generating a first output bitstream in an unit of plural bits; an internal interleaver for generating an interleaved input bitstream from the bitstream of the data; a second element encoder for receiving an input of the interleaved input bitstream in the unit of plural bits, encoding the input of the interleaved input bitstream, and generating a second output bitstream in an unit of plural bits; a trellis-termination-encoder for generating bits for trellis terminations of the first element encoder and the second element encoder; and a bitstream assembler for receiving the first output bitstream, the second output bitstream, and the bits for the trellis terminations and generating an input bitstream for a rate matching.

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Seoul, South Korea

Jongho Lim