Feedback timing determination method, terminal device, and network device

A network device, comprising:

• a processor and a transceiver,
• wherein the transceiver is configured to:
• send first indication information to a terminal device within a first time unit, wherein the first indication information is used for indicating the terminal device to transmit Uplink Control Information (UCI) in a third time unit, and the third time unit is subsequent to the first time unit;
• and
• send second indication information to the terminal device within a second time unit, wherein the second indication information is used for indicating the terminal device to transmit the UCI in a fourth time unit, the fourth time unit is subsequent to the second time unit, the second time unit is subsequent to the first time unit, and the fourth time unit is different from the third time unit,
• wherein the processor is configured to:
• set a value of a specific information field in the second indication information to be a preset value, to indicate the terminal device to transmit the UCI in the fourth time unit and not to transmit the UCI in the third time unit;
• and
• set the value of the specific information field in the second indication information not to be the preset value, to indicate the terminal device to transmit the UCI in both the fourth time unit and the third time unit,
• wherein the transceiver is further configured to:
• send configuration information to the terminal device, wherein the configuration information is used for indicating the terminal device whether to enable to determine to transmit the UCI in the fourth time unit and not to transmit the UCI in the third time unit based on at least one of the first time unit, the second time unit, the first indication information and the second indication information,
• wherein the processor is further configured to:
• indicate, based on the configuration information, the terminal device to transmit the UCI in the fourth time unit and not to transmit the UCI in the third time unit, based on at least one of the first time unit, the second time unit, the first indication information, and the second indication information.

A terminal device, comprising:

• a processor and a transceiver,
• wherein the transceiver is configured to receive first indication information within a first time unit, wherein the first indication information is used for indicating the terminal device to transmit Uplink Control Information (UCI) in a third time unit, and the third time unit is subsequent to the first time unit;
• and receive second indication information within a second time unit, wherein the second indication information is used for indicating the terminal device to transmit the UCI in a fourth time unit, wherein the fourth time unit is subsequent to the second time unit, the second time unit is subsequent to the first time unit or the same as the first time unit, and the fourth time unit is different from the third time unit,
• wherein the processor is configured to:
• determine to transmit the UCI in the fourth time unit and not to transmit the UCI in the third time unit, when a value of a specific information field in the second indication information is a preset value;
• and
• determine to transmit the UCI in both the fourth time unit and the third time unit, when the value of the specific information field in the second indication information is not the preset value,
• wherein the transceiver is further configured to:
• receive configuration information sent by a network side, wherein the configuration information is used for indicating to the terminal device whether to enable to determine to transmit the UCI in the fourth time unit and not to transmit the UCI in the third time unit, based on at least one of the first time unit, the second time unit, the first indication information, and the second indication information,
• wherein the processor is further configured to:
• determine, based on the configuration information, to transmit the UCI in the fourth time unit and not to transmit the UCI in the third time unit based on at least one of the first time unit, the second time unit, the first indication information and the second indication information.