Method and apparatus for resource selection in sidelink transmission in a wireless communication system

A method of a first device for performing sidelink transmission to a second device, comprising:

• the first device is configured with a first resource pool for sidelink transmission;
• the first device is configured with only a first number of consecutive symbols in each slot for sidelink such that each slot in the first resource pool comprises only one subset of consecutive symbols for sidelink and the subset of each slot comprises the same first number of consecutive symbols, wherein the first number of consecutive symbols in each slot for sidelink is less than all OFDM (Orthogonal Frequency Division Multiplexing) symbols in each slot;
• the first device performs resource selection among a plurality of slots in the first resource pool;
• the first device selects a first resource in a first slot and a second resource in a third slot, wherein for the first slot and the third slot comprising the first number of consecutive symbols for sidelink, the first slot and the third slot comprise downlink symbol(s) and/or uplink symbol(s), wherein the downlink symbol(s) are earlier than the first number of consecutive symbols and/or the uplink symbol(s) are later than the first number of consecutive symbols;
• and
• the first device performs sidelink transmission of a TB (Transport Block) on the first resource and performs sidelink transmission of the TB on the second resource.