Data transmission method and apparatus

A network device, comprising:

• a transceiver;
• and
• at least one processor connected to the transceiver;
• wherein,
• the transceiver is configured to:
• transmit, to a terminal device, indication information indicating a data distribution manner selected from a first data distribution manner and a second data distribution manner;
• perform data transmission with the terminal device according to the data distribution manner;
• wherein the data distribution manner indicating a distribution of modulation symbols of a code block (CB) on one or more orthogonal frequency division multiplexing (OFDM) symbols of at least one resource unit, the one or more OFDM symbols are consecutive in time-domain,
• and wherein a first modulation symbol of the modulation symbols is located on one of the one or more OFDM symbols associated with a first OFDM symbol index, a second modulation symbol of the modulation symbols is located on one of the one or more OFDM symbols associated with a second OFDM symbol index, the first OFDM symbol index is smaller than or equal to the second OFDM symbol index when a first location index associated with the first modulation symbol is smaller than a second location index associated with the second location index;
• and wherein modulation symbols distributed on a same OFDM symbol of the one or more OFDM symbols are interleaved in frequency-domain according to the first data distribution manner and are not interleaved in the frequency-domain according to the second data distribution manner.

A data transmission method, comprising:

• transmitting, by a data transmission apparatus, indication information to a terminal device, wherein the indication information indicates a data distribution manner selected from a first data distribution manner and a second data distribution manner;
• performing, by the data transmission apparatus, data transmission with the terminal device according to the data distribution manner;
• wherein the data distribution manner indicating a distribution of modulation symbols of a code block (CB) on one or more orthogonal frequency division multiplexing (OFDM) symbols of at least one resource unit, the one or more OFDM symbols are consecutive in time-domain,
• and wherein a first modulation symbol of the modulation symbols is located on one of the one or more OFDM symbols associated with a first OFDM symbol index, a second modulation symbol of the modulation symbols is located on one of the one or more OFDM symbols associated with a second OFDM symbol index, the first OFDM symbol index is smaller than or equal to the second OFDM symbol index when a first location index associated with the first modulation symbol is smaller than a second location index associated with the second location index;
• and wherein modulation symbols distributed on a same OFDM symbol of the one or more OFDM symbols are interleaved in frequency-domain according to the first data distribution manner and are not interleaved in the frequency-domain according to the second data distribution manner.

A non-transitory computer-readable storage medium coupled to one or more computers and configured with instructions executable by the one or more computers to:

• transmit, by the one or more computers, indication information to a terminal device, wherein the indication information indicates a data distribution manner selected from a first data distribution manner and a second data distribution manner;
• perform, by the one or more computers, data transmission with the terminal device according to the data distribution manner;
• wherein the data distribution manner indicating a distribution of modulation symbols of a code block (CB) on one or more orthogonal frequency division multiplexing (OFDM) symbols of at least one resource unit, the one or more OFDM symbols are consecutive in time-domain,
• and wherein a first modulation symbol of the modulation symbols is located on one of the one or more OFDM symbols associated with a first OFDM symbol index, a second modulation symbol of the modulation symbols is located on one of the one or more OFDM symbols associated with a second OFDM symbol index, the first OFDM symbol index is smaller than or equal to the second OFDM symbol index when a first location index associated with the first modulation symbol is smaller than a second location index associated with the second location index;
• and wherein modulation symbols distributed on a same OFDM symbol of the one or more OFDM symbols are interleaved in frequency-domain according to the first data distribution manner and are not interleaved in the frequency-domain according to the second data distribution manner.