Performing downlink data receiving or uplink data sending in a target time unit

1 . A data transmission method, applied to a terminal, and comprising:

in response to determining an uplink and downlink transmission conflict in a target time unit, performing downlink data receiving or uplink data sending in the target time unit;

wherein performing the downlink data receiving or the uplink data sending in the target time unit comprises:

performing, based on a first target transmission mode, the downlink data receiving or the uplink data sending in the target time unit;

wherein the method further comprises:

determining, based on a protocol, the first target transmission mode; or

determining, based on received target signaling, the first target transmission mode,

wherein the target signaling is configured to indicate the first target transmission mode;

receiving target downlink data within a preset time period, wherein the target downlink data is downlink data that is not received by the terminal in the target time unit.

2 . The method of claim 1 further comprising:

in response to performing the uplink data sending in the target time unit, sending first target instruction information, wherein the first target instruction information is configured to indicate that the terminal does not perform the downlink data receiving in the target time unit.

3 . The method of claim 2 , wherein sending the first target instruction information comprises:

sending the first target instruction information through an uplink data channel or an uplink control channel.

4 . The method of claim 2 , wherein sending the first target instruction information comprises:

multiplexing hybrid automatic repeat request (HARQ) instruction information to send the first target instruction information; or

sending predefined signaling as the first target instruction information; or

sending a specified signal or specified signaling at a preset location.

5 . The method of claim 2 , further comprising:

receiving target downlink data within a preset time period after sending the first target instruction information.

6 . The method of claim 2 , further comprising:

sending transmission instruction information; and

receiving target downlink data, wherein the target downlink data is downlink data that is not received by the terminal in the target time unit.

7 . The method of claim 1 , wherein performing the downlink data receiving or the uplink data sending in the target time unit comprises:

performing, based on received second target instruction information, the downlink data receiving or the uplink data sending in the target time unit,

wherein the second target instruction information is configured to instruct the terminal to perform the downlink data receiving or the uplink data sending in the target time unit when there is the uplink and downlink transmission conflict in the target time unit.

8 . The method of claim 7 , wherein the second target instruction information is configured to indicate a transmission mode of the terminal on at least one downlink bandwidth part and/or at least one uplink bandwidth part pre-allocated for the terminal.

9 . The method of claim 8 , wherein performing, based on received second target instruction information, the downlink data receiving or the uplink data sending in the target time unit comprises:

in response to determining that the second target instruction information is configured to indicate that the transmission mode of the terminal on at least one downlink bandwidth part is a second target transmission mode, performing the uplink data sending in the target time unit; and

in response to determining that the second target instruction information is configured to indicate that the transmission mode of the terminal on at least one uplink bandwidth part is the second target transmission mode, performing the downlink data receiving in the target time unit.

10 . The method of claim 7 , further comprising:

receiving the second target instruction information in each time unit; or

receiving, after determining at least one time unit for receiving the second target instruction information based on configuration information corresponding to the second target instruction information, the second target instruction information in the at least one time unit.

11 . A data transmission method, applied to a network side device, and comprising:

receiving first target instruction information sent by a terminal, wherein the first target instruction information is configured to indicate that the terminal does not perform downlink data receiving in a target time unit, and the target time unit is a time unit when there is an uplink and downlink transmission conflict; and

sending, based on the first target instruction information, target downlink data to the terminal, wherein the target downlink data is downlink data that is not received by the terminal in the target time unit;

wherein the method further comprises, before receiving the first target instruction information sent by the terminal:

sending target signaling for indicating a first target transmission mode to the terminal, wherein the first target transmission mode is configured to instruct the terminal to perform downlink data receiving or uplink data sending in the target time unit when there is an uplink and downlink transmission conflict,

wherein sending the target downlink data to the terminal comprises:

sending the target downlink data to the terminal within a preset time period after receiving the first target instruction information.

12 . The method of claim 11 , wherein sending the target downlink data to the terminal comprises:

sending the target downlink data to the terminal within a preset time period; or

sending, based on transmission instruction information sent by the terminal, the target downlink data to the terminal.

13 . The method of claim 11 , further comprising:

in response to determining a possible uplink and downlink transmission conflict for a terminal in a target time unit, sending second target instruction information to the terminal, wherein the second target instruction information is configured to instruct the terminal to perform downlink data receiving or uplink data sending in the target time unit when there is an uplink and downlink transmission conflict in the target time unit.

14 . The method of claim 13 , wherein the second target instruction information is configured to indicate a transmission mode of the terminal on at least one downlink bandwidth part and/or at least one uplink bandwidth part pre-allocated for the terminal.

15 . A data transmission device, comprising:

a processor;

a memory storing instructions executable by the processor;

wherein the processor is configured to perform operations comprising:

in response to determining an uplink and downlink transmission conflict in a target time unit, performing downlink data receiving or uplink data sending in the target time unit;

wherein performing the downlink data receiving or the uplink data sending in the target time unit comprises:

performing, based on a first target transmission mode, the downlink data receiving or the uplink data sending in the target time unit;

wherein the method further comprises:

determining, based on a protocol, the first target transmission mode; or

determining, based on received target signaling, the first target transmission mode, wherein the target signaling is configured to indicate the first target transmission mode;

receiving target downlink data within a preset time period, wherein the target downlink data is downlink data that is not received by the terminal in the target time unit.