Wireless communication method and device

A wireless communication method, comprising:

• receiving, by a first device, first control information transmitted by a second device, the first control information being used to schedule transmission of S physical channels, at least one of the S physical channels corresponding to a first physical channel group or a first feedback bit group, the first physical channel group or the first feedback bit group corresponding to a first Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK) codebook, the first HARQ-ACK codebook corresponding to a first feedback resource, the first control information corresponding to a first control information format, and transmission of a maximum number M of physical channels being schedulable by the first control information format, where M is a positive integer greater than or equal to 2, and S is a positive integer greater than or equal to 1 and smaller than or equal to M;
• and
• transmitting, by the first device, the first HARQ-ACK codebook via the first feedback resource;
• wherein the first feedback bit group comprises a fixed number N pieces of feedback information, N is configured by the second device, where N is a positive integer greater than or equal to 1;
• and/or N is a positive integer smaller than M;
• when S is smaller than or equal to N, feedback bit positions of the first S physical channels in feedback bit positions of the first feedback bit group are feedback bit positions of the S physical channels, and/or
• when S is greater than N, a feedback bit position of one physical channel in feedback bit positions of the first feedback bit group is a feedback bit position of at least two of the S physical channels adopting bunding feedback.