Method and apparatus for determining pssch resource, communication device, and storage medium

A method for transmitting a physical sidelink shared channel (PSSCH) resource, performed by a second terminal, comprising:

• receiving a transport block (TB) sent by a first terminal from physical sidelink feedback channel (PSFCH) resources,
• wherein a time gap between any two PSSCH resources selected for one TB is not less than a minimum time gap;
• the minimum time gap is a time gap determined according to a target PSFCH occasion determined from M PSFCH occasions mapped by a PSSCH where the TB is located;
• the PSSCH resource is an unlicensed frequency band resource and is used for transmitting the TB;
• a first PSSCH of any two PSSCHs supports a hybrid automatic repeat request (HARQ) feedback;
• and M is an integer greater than 1.

A communication device, comprising:

• one or more processors,
• wherein the processor is configured to:
• determine a target physical sidelink feedback channel (PSFCH) occasion from M PSFCH occasions mapped by a physical sidelink shared channel (PSSCH) where a transport block (TB) is located;
• and
• determine, according to the target PSFCH occasion, a minimum time gap between any two PSSCH resources selected for the TB,
• wherein a time gap between any two PSSCH resources selected for one TB is not less than the minimum time gap;
• the PSSCH resource is an unlicensed frequency band resource and is used for transmitting the TB;
• a first PSSCH of any two PSSCHs supports a hybrid automatic repeat request (HARQ) feedback;
• and M is an integer greater than 1.