HARQ process control method and apparatus

A communication device, comprising:

• at least one processor, and
• one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to perform operations comprising:
• receiving first sidelink control information (SCI) from a first terminal, wherein the first SCI is used to schedule a first transport block (TB), and the first SCI comprises information used to indicate a first HARQ process identifier (ID);
• receiving the first TB from the first terminal in a first HARQ process;
• receiving second SCI from the first terminal, wherein the second SCI is used to schedule a second TB, the second SCI comprises the information used to indicate the first HARQ process ID and indication information, and the indication information indicates that the second TB is a newly transmitted TB;
• and
• in response to the second SCI, clearing a buffer associated with the first HARQ process and releasing the first HARQ process.

A non-transitory computer-readable medium having stored computer programs, the computer programs being executable by one or more processors, and when executed, causes the one or more processors to:

• receive first sidelink control information (SCI) from a first terminal, wherein the first SCI is used to schedule a first transport block (TB), and the first SCI comprises information used to indicate a first HARQ process identifier (ID);
• receive the first TB from the first terminal in a first HARQ process;
• receive second SCI from the first terminal, wherein the second SCI is used to schedule a second TB, the second SCI comprises the information used to indicate the first HARQ process ID and indication information, and the indication information indicates that the second TB is a newly transmitted TB;
• and
• in response to the second SCI, clear a buffer associated with the first HARQ process and release the first HARQ process.