Method of transmitting CSI report, terminal device and network device

A terminal device, comprising a memory, a processor and a program stored in the memory and executable on the processor, and the processor executes the program to:

• determine, based on one or more collision groups that need to be transmitted on a physical uplink control channel (PUCCH) resource of a component carrier, a target PUCCH resource, wherein the target PUCCH resource is configured to transmit CSI reports in the one or more collision groups, the collision group comprises at least two CSI reports, any one of the CSI reports in the collision group overlaps with at least one of the CSI reports in the collision group, and does not overlap with any CSI report outside the collision group;
• in a case that a payload of a CSI report set to be put into the target PUCCH resource is larger than a transmission capacity of the target PUCCH resource meeting a target code rate, place a part of the CSI reports of the CSI report set into the target PUCCH resource, according to priorities of the CSI reports;
• in a case that the payload of the CSI report set is smaller than or equal to the transmission capacity of the target PUCCH resource meeting the target code rate, place all the CSI reports of the CSI report set into the target PUCCH resource;
• and
• send the placed CSI reports on the target PUCCH resource;
• wherein the CSI report set at least comprises the CSI reports in the one or more collision groups.