Data transmission method and communication apparatus

A data transmission method, wherein the method comprises:

• receiving, by a terminal device, first information from a network device, wherein the first information indicates at least one of transport block size (TBS) configuration information or redundancy version (RV) configuration information, the TBS configuration information configures a first TBS, and the RV configuration information configures a first RV information;
• and
• performing, by the terminal device, at least one of:
• sending, by the terminal device, a transport block to the network device based on the at least one of the TBS configuration information or the RV configuration information;
• or
• receiving, by the terminal device, the transport block from the network device based on the at least one of the TBS configuration information or the RV configuration information;
• wherein:
• a TBS of the transport block is the first TBS;
• or
• an RV information of the transport block is the first RV information
• wherein:
• the first TBS is an expanded TBS enabling more bits for a resource unit to be transmitted to increase a transmission code rate and the first RV information is a refined RV having a smaller granularity for reducing a minimum quantity of resources used to provide correct decoding, a spectral efficiency is increased in response to receiving or sending the transport block based on the expanded TBS or based on the refined RV.

A communication apparatus, comprising:

• one or more processors;
• and
• a memory configured to store program instructions;
• wherein, when executed by the one or more processors, the program instructions cause the communications apparatus to:
• send first information to a terminal device, wherein the first information indicates at least one of transport block size (TBS) configuration information or redundancy version (RV) configuration information, the TBS configuration information configures a first TBS, and the RV configuration information configures a first RV information;
• and
• perform at least one of:
• receive a transport block from the terminal device;
• or
• send the transport block to the terminal device;
• wherein:
• a TBS of the transport block is the first TBS;
• or
• an RV information of the transport block is the first RV information;
• wherein the first TBS is an expanded TBS enabling more bits for a resource unit to be transmitted to increase a transmission code rate and the first RV information is a refined RV having a smaller granularity for reducing a minimum quantity of resources used to provide correct decoding, a spectral efficiency is increased in response to receiving or sending the transport block based on the expanded TBS or based on the refined RV.

A communication apparatus, comprising:

• one or more processors;
• and
• a memory configured to store program instructions;
• wherein, when executed by the one or more processors, the program instructions cause the communications apparatus to:
• receive first information from a network device, wherein the first information indicates at least one of transport block size (TBS) configuration information or redundancy version (RV) configuration information, the TBS configuration information configures a first TBS, and the RV configuration information configures a first RV information;
• and
• perform at least one of:
• send a transport block to the network device based on the at least one of the TBS configuration information or the RV configuration information;
• or
• receive the transport block from the network device based on the at least one of the TBS configuration information or the RV configuration information;
• wherein:
• a TBS of the transport block is the first TBS;
• or
• an RV information of the transport block is the first RV information
• wherein:
• the first TBS is an expanded TBS enabling more bits for a resource unit to be transmitted to increase a transmission code rate and the first RV information is a refined RV having a smaller granularity for reducing a minimum quantity of resources used to provide correct decoding, a spectral efficiency is increased in response to receiving or sending the transport block based on the expanded TBS or based on the refined RV.