Determination method and device for size of downlink control information format

A method for determining a size of a downlink control information (DCI) format, applied to a terminal, and comprising:

• receiving information for indicating the size of the DCI format sent by a network device, the size of the DCI format being the size of the DCI format that is determined by the network device according to a length of information bits to be actually borne by the DCI format and that needs to be detected by the terminal, wherein the size of the DCI format is determined by the network device based on the DCI format and the length of information bits to be actually borne by the DCI format, and the size of the DCI format is different from a size of a predetermined DCI format;
• and
• acquiring, in response to detecting DCI matching the size of the DCI format, information bits to be actually borne by the DCI format,
• wherein receiving the information for indicating the size of the DCI format sent by the network device comprises:
• receiving a control signaling sent by the network device, the control signaling including the length of the information bits to be actually borne by the DCI format,
• wherein the size of the DCI format is sent through higher layer signaling.

A terminal for determining a size of a downlink control information (DCI) format, comprising:

• a processor;
• and
• a memory storing instructions executable by the processor,
• wherein the processor is configured to:
• receive information for indicating the size of the DCI format sent by a network device, the size of the DCI format being the size of the DCI format that is determined by the network device according to a length of information bits to be actually borne by the DCI format and that needs to be detected by the terminal, wherein the size of the DCI format is determined by the network device based on the DCI format and the length of information bits to be actually borne by the DCI format, and the size of the DCI format is different from a size of a predetermined DCI format;
• and
• acquire, in response to detecting DCI matching the size of the DCI format, information bits to be actually borne by the DCI format;
• wherein receiving the information for indicating the size of the DCI format sent by the network device comprises:
• receiving a control signaling sent by the network device, the control signaling including the length of the information bits to be actually borne by the DCI format,
• wherein the size of the DCI format is sent through higher layer signaling.