Data transmission method and communication device

A communication device, comprising a processor, a transceiver, and a memory, wherein the processor is configured to execute instructions stored by the memory;

• wherein when the processor executes the instructions stored by the memory, the processor is caused to determine transmission parameters for transmitting a target transport block, wherein the transmission parameters comprises target Modulation and Coding Scheme (MCS), a target Physical Resource Block (PRB) number, and information about a PRB resource overhead;
• and determine a target Transport Block Size (TBS) of the target transport block according to the transmission parameters;
• and
• wherein the transceiver is configured to transmit the target transport block or receive the target transport block according to the target TBS determined by the processor;
• wherein the information about the PRB resource overhead comprises a target PRB resource overhead of the target transport block, and
• the target PRB resource overhead comprises, among all PRBs with the target PRB number, a number of resource elements REs that are not used for transmitting the target transport block, or an average number of REs that are not used for transmitting the target transport block in each PRB;
• wherein the processor is configured to:
• determine a resource overhead group corresponding to the target PRB number according to a first mapping relationship and the target PRB number among a plurality of PRB numbers which correspond to the target MCS, wherein the first mapping relationship represents correspondence between a plurality of PRB numbers and a plurality of groups of resource overheads;
• and
• determine, among a plurality of TBSs corresponding to a plurality of resource overheads in the resource overhead group, a TBS corresponding to the target PRB resource overhead as the target TBS.

A non-transitory computer readable storage medium storing a program which causes a communication device to perform a data transmission method;

• wherein the data transmission method comprises:
• determining a transmission parameter for transmitting a current target transport block, wherein the transmission parameter comprises target Modulation and Coding Scheme (MCS), a target Physical Resource Block (PRB) number, and information about a PRB resource overhead;
• determining a target Transport Block Size TBS of the target transport block according to the transmission parameter;
• and
• transmitting the target transport block or receiving the target transport block according to the target TBS;
• wherein the information about the PRB resource overhead comprises a target PRB resource overhead of the target transport block, and
• the target PRB resource overhead comprises, among all PRBs with the target PRB number, the number of resource elements (REs) that are not used for transmitting the target transport block, or an average number of REs that are not used for transmitting the target transport block in each PRB;
• wherein determining a target Transport Block Size TBS of the target transport block according to the transmission parameters comprises:
• determining a resource overhead group corresponding to the target PRB number according to a first mapping relationship and the target PRB number among a plurality of PRB numbers which correspond to the target MCS, wherein the first mapping relationship represents correspondence between a plurality of PRB numbers and a plurality of groups of resource overheads;
• and
• determining, among a plurality of TBSs corresponding to a plurality of resource overheads in the resource overhead group, a TBS corresponding to the target PRB resource overhead as the target TBS.