The present disclosure discloses a method and device in user equipment and a base station for wireless communication. The base station equipment sequentially generates a first information block, performs first channel coding and transmits a first radio signal, wherein the first information block includes bits in a first sub-information block, the first information block is used to generate L check bits, the first information block and the L check bits are sequentially mapped into the first bit block after being interleaved, the first bit block is used as an input of the first channel coding, the value of the first sub-information-block is related to the Q, the positions of the bits in the first sub-information-block in the first bit block are prior to the check bit whose position is front-most among the L check bits in the first bit block.