Encoding information bits using pilar code generated matrices

A method in a User Equipment (UE) for wireless communication, comprising:

• receiving a first radio signal;
• and
• performing channel pre-decoding based on a first hypothesis;
• and
• performing channel decoding, a first bit block is used for generating the first radio signal;
• wherein a channel coding corresponding to the channel decoding is based on a polar code, the first bit block is used for an input to the channel coding;
• an output after the channel coding is used for generating the first radio signal;
• the channel decoding is used for recovering the first bit block;
• the first bit block comprises bit(s) in a first bit sub-block and bits in a second bit sub-block;
• a value of the first bit sub-block indicates a quantity of bits in the second bit sub-block and positions of the bits in the second bit sub-block;
• the first bit block only comprises all information bits in an input to the channel coding;
• a position of one bit of the first bit sub-block in the first bit block is determined by default;
• the first bit sub-block and the second bit sub-block respectively comprise a positive integer number of bit(s);
• the quantity of the bits in the second bit sub-block is a candidate value of K candidate values;
• the candidate value is a positive integer, the K is a positive integer greater than 1;
• an output after the channel pre-decoding comprises the first bit sub-block, the first hypothesis is that the quantity of the bits in the second bit sub-block is equal to a maximum value of the K candidate values.

A base station used for wireless communication, comprising:

• a first executor, performing channel coding;
• and
• a first transmitter, transmitting a first radio signal, a first bit block is used for generating the first radio signal;
• wherein the first bit block is used for an input to the channel coding;
• the channel coding is based on a polar code;
• an output after the channel coding is used for generating the first radio signal;
• the first bit block comprises bit(s) in a first bit sub-block and bits in a second bit sub-block;
• a value of the first bit sub-block indicates a quantity of bits in the second bit sub-block and positions of the bits in the second bit sub-block;
• the first bit block only comprises all information bits in an input to the channel coding;
• a position of one bit of the first bit sub-block in the first bit block is determined by default;
• the first bit sub-block and the second bit sub-block respectively comprise a positive integer number of bit(s);
• the quantity of the bits in the second bit sub-block is a candidate value of K candidate values;
• the candidate value is a positive integer, the K is a positive integer greater than 1;
• the base station assumes that a probability that a receiver incorrectly decodes the first bit sub-block based on a first hypothesis is no higher than a first threshold, the first hypothesis is that the quantity of the bits in the second bit sub-block is equal to a maximum value of the K candidate values.

A UE used for wireless communication, comprising:

• a first receiver, receiving a first radio signal and performing channel pre-decoding based on a first hypothesis;
• and
• a second executor, performing channel decoding, a first bit block is used for generating the first radio signal;
• wherein a channel coding corresponding to the channel decoding is based on a polar code, the first bit block is used for an input to the channel coding;
• an output after the channel coding is used for generating the first radio signal;
• the channel decoding is used for recovering the first bit block;
• the first bit block comprises bit(s) in a first bit sub-block and bits in a second bit sub-block;
• a value of the first bit sub-block indicates a quantity of bits in the second bit sub-block and positions of the bits in the second bit sub-block;
• the first bit block only comprises all information bits in an input to the channel coding;
• a position of one bit of the first bit sub-block in the first bit block is determined by default;
• the first bit sub-block and the second bit sub-block respectively comprise a positive integer number of bit(s);
• the quantity of the bits in the second bit sub-block is a candidate value of K candidate values;
• the candidate value is a positive integer, the K is a positive integer greater than 1;
• an output after the channel pre-decoding comprises the first bit sub-block, the first hypothesis is that the quantity of the bits in the second bit sub-block is equal to a maximum value of the K candidate values.