Methods and apparatuses for transmitting and receiving sidelink information

An apparatus for transmitting sidelink information, configured in a second device, comprising:

• a memory that stores a plurality of instructions;
• and
• processor circuitry coupled to the memory and configured to execute the instructions to:
• receive first sidelink data information and/or a reference signal transmitted by at least one first device;
• indicate sidelink feedback information for the first sidelink data information and/or reference signal by using an identifier;
• and
• transmit to the at least one first device the indicated sidelink feedback information,
• wherein the identifier comprises an identifier of the first device and an identifier of the second device, and wherein the processor circuitry is configured to, according to the identifier of the first device and the identifier of the second device, determine a cyclic shift used by the sidelink feedback information.