Convolutional turbo coding method and device for implementing the coding method

An apparatus comprising:

• a Convolutional Turbo Coding (CTC) interleaver configured to interleave information bits A and B and to output interleaved information bits C and D, respectively;
• a constituent encoder configured to encode the information bits A and B and the interleaved information bits C and D and to output parity sequences Y1, W1, Y2 and W2, respectively;
• and
• a plurality of interleavers configured to interleave the information bits A and B, the parity sequences Y1 and Y2 and the parity sequences W2 and W1, respectively, and to output:
• an interleaved information subblock A,
• an interleaved information subblock B,
• a bit-by-bit multiplexed sequence of interleaved Y1 and Y2 subblock sequences, wherein the bit-by-bit multiplexed sequence of the interleaved Y1 and Y2 subblock sequences comprises a first output bit from a Y1 subblock interleaver, a first output bit from a Y2 subblock interleaver, a second output bit from the Y1 subblock interleaver, and a second output bit from the Y2 subblock interleaver in order, and
• a bit-by-bit multiplexed sequence of interleaved W2 and W1 subblock sequences, wherein the bit-by-bit multiplexed sequence of the interleaved W2 and W1 subblock sequences comprises a first output bit from a W2 subblock interleaver, a first output bit from a W1 subblock interleaver, a second output bit from the W2 subblock interleaver and a second output bit from the W1 subblock interleaver in order.

An apparatus comprising:

• a plurality of subblock interleavers configured to receive an information subblock A, an information subblock B, a parity sequence of a Y1 subblock, a parity sequence of a Y2 subblock, a parity sequence of a W2 subblock and a parity sequence of a W1 subblock, and to output:
• an interleaved information subblock A,
• an interleaved information subblock B,
• a bit-by-bit multiplexed sequence of interleaved Y1 and Y2 subblock sequences, wherein the bit-by-bit multiplexed sequence of the interleaved Y1 and Y2 subblock sequences comprises a first output bit from a Y1 subblock interleaver, a first output bit from a Y2 subblock interleaver, a second output bit from the Y1 subblock interleaver, and a second output bit from the Y2 subblock interleaver in order, and
• a bit-by-bit multiplexed sequence of interleaved W2 and W1 subblock sequences, wherein the bit-by-bit multiplexed sequence of the interleaved W2 and W1 subblock sequences comprises a first output bit from a W2 subblock interleaver, a first output bit from a W1 subblock interleaver, a second output bit from the W2 subblock interleaver, and a second output bit from the W1 subblock interleaver in order.

A method comprising:

• receiving, by a plurality of subblock interleavers, an information subblock A, an information subblock B, a parity sequence of Y1 subblock, a parity sequence of Y2 subblock, a parity sequence of W2 subblock and a parity sequence of W1 subblock;
• and
• outputting, by the plurality of subblock interleavers:
• an interleaved information subblock A,
• an interleaved information subblock B,
• a bit-by-bit multiplexed sequence of interleaved Y1 and Y2 subblock sequences, wherein the bit-by-bit multiplexed sequence of the interleaved Y1 and Y2 subblock sequences comprises a first output bit from a Y1 subblock interleaver, a first output bit from a Y2 subblock interleaver, a second output bit from the Y1 subblock interleaver, and a second output bit from the Y2 subblock interleaver in order, and
• a bit-by-bit multiplexed sequence of interleaved W2 and W1 subblock sequences, wherein the bit-by-bit multiplexed sequence of the interleaved W2 and W1 subblock sequences comprises a first output bit from a W2 subblock interleaver, a first output bit from a W1 subblock interleaver, a second output bit from the W2 subblock interleaver and a second output bit from the W1 subblock interleaver in order.