Information processing method and communication apparatus for improving channel encoding between devices

A communication apparatus, comprising:

• a processor;
• and
• a memory configured to store computer readable instructions that, when executed by the processor, cause the communication apparatus to:
• obtain information bits having K bits, and wherein K is a positive integer;
• and
• map the information bits to a target symbol sequence based on a trellis diagram, wherein
• the target symbol sequence includes M symbols,
• M is a positive integer greater than K,
• the M symbols include m symbols whose values are first values,
• the trellis diagram includes at least M directed edges, and
• a directed edge, from the M directed edges, corresponds to a value of a first symbol in the target symbol sequence, wherein
• the communication is further caused to:
• sequentially determine M+1 element modes in the trellis diagram based on the information bits, wherein the directed edge between two adjacent element nodes, in the M+1 element nodes, is used to determine the value of the first symbol in the target symbol sequence, wherein
• a first element node, in the M+1 element nodes, is related to a value of M and a value of m,
• the first element node is any one of first M element nodes in the M+1 element nodes,
• a next mode of the first element mode is a second element mode in the M+1 element nodes,
• the first element node points to one or more element nodes in the trellis diagram, and
• the second element mode is one of the one or more element modes;
• and
• output the target symbol sequence to a communication channel.

A non-transitory computer-readable storage medium having computer readable instructions that, when executed by a computer of a communication apparatus, cause the communication apparatus to provide execution comprising:

• obtaining information bits having K bits, and wherein K is a positive integer;
• and
• mapping the information bits to a target symbol sequence based on a trellis diagram, wherein
• the target symbol sequence includes M symbols,
• M is a positive integer greater than K,
• the M symbols include m symbols whose values are first values,
• the trellis diagram includes at least M directed edges, and
• a directed edge, from the M directed edges, corresponds to a value of a first symbol in the target symbol sequence, wherein
• the communication apparatus is further caused to provide execution that comprises:
• sequentially determining M+1 element nodes in the trellis diagram based on the information bits, wherein the directed edge between two adjacent element nodes, in the M+1 element nodes, is used to determine the value of the first symbol in the target symbol sequence, wherein
• a first element node, in the M+1 element nodes, is related to a value of M and a value of m,
• the first element mode is any one of first M element nodes in the M+1 element nodes,
• a next mode of the first element node is a second element mode in the MAIL element nodes,
• the first element node points to one or more element nodes in the trellis diagram, and
• the second element node is one of the one or more element nodes;
• and
• outputting the target symbol sequence to a communication channel.