Device and Method of Handling Communication with Another Device

A first communication device of handling communication with a second communication device, comprising:

• a storage unit, for storing instructions of:
• generating a transport block (TB);
• generating a first control block (CB) comprising at least one of a modulation scheme, a coding scheme, a redundancy version, a hybrid automatic repeat request (HARQ) process identifier and a new data indicator (NDI) for the second communication device to process the TB;
• generating a first cyclic redundancy check (CRC) according to the first CB;
• scrambling the first CRC with a first identifier to generate a first scrambled CRC, wherein the first identifier is known by the first and second communication devices;
• and
• performing a transmission of the TB, the first CB and the first scrambled CRC on at least one first subcarrier in at least one first resource block (RB), to the second communication device;
• and
• a processing circuit, coupled to the storage unit, configured to execute the instructions stored in the storage unit.

A first communication device of handling a transmission, comprising:

• a storage unit, for storing instructions of:
• determining a resource block (RB) according to a length of a transmission time interval (TTI);
• and
• transmitting a transmission on one or more the RBs to a second communication device;
• and
• a processing circuit, coupled to the storage unit, configured to execute the instructions stored in the storage unit.