Method for data transmission, terminal device and network device

A method for data transmission, comprising:

• determining, by a network device, at least one transmission frequency band, wherein according to a first mapping relationship, the at least one transmission frequency band corresponds to an attribute of first control information, and in the first mapping relationship, the attribute of the first control information corresponds to one or more transmission frequency bands;
• determining, by the network device, a target transmission frequency band from the at least one transmission frequency band;
• sending, by the network device, the first control information to a terminal device;
• and
• performing, by the network device, the data transmission with the terminal device on the target transmission frequency band.

A terminal device, comprising:

• a processor, a transceiver, and a memory, wherein when the processor executes instructions stored by the memory, the execution causes the terminal device to perform:
• receiving, by the transceiver, first control information sent by a network device, wherein the first control information is used to schedule the terminal device to perform data transmission;
• determining, by the processor, according to an attribute of the first control information and a first mapping relationship, at least one transmission frequency band corresponding to the attribute of the first control information, wherein in the first mapping relationship, the attribute of the first control information corresponds to one or more transmission frequency bands;
• determining, by the processor, a target transmission frequency band from the at least one transmission frequency band;
• and
• performing, by the transceiver, the data transmission with the network device on the target transmission frequency band according to the first control information.