Methods, devices, and systems for transmitting multiple transport block groups

A wireless communications apparatus comprising:

• a memory operable to store computer-readable instructions;
• and
• a processor circuitry operable to read the computer-readable instructions, the processor circuitry when executing the computer-readable instructions is configured to:
• transmit a set of transport block (TB) groups between a first wireless device and a second wireless device by:
• receive, by the second wireless device, a resource indication from the first wireless device, wherein:
• the resource indication indicates resource allocation of m groups of TBs in a resource space comprising a time unit in a time domain and a frequency unit in a frequency domain, and m is an integer larger than 1;
• each TB mapped to a same codeword in the m groups of TBs is mapped to different time-frequency resource in the resource space;
• a group of TBs in the m groups of TBs comprises n TBs mapped to a same codeword, and n is an integer larger than 0;
• and
• each TB in the m groups of TBs is capable of being packaged separately at a transmitting end, and capable of being delivered separately to an upper layer at a receiving end.