Wireless communication method and device, and network device

1. A network device, comprising: a memory, a processor, and a program stored on the memory and executable on the processor; wherein the program is executed by the processor to implement steps of:

determining a reference time; and

performing control on at least one of a first transmission time or a second transmission time according to the reference time, thereby enabling a difference between a first reception time and a second reception time to be less than a preset time difference;

wherein the first transmission time is a transmission time of a backhaul downlink (DL) signal transmitted by a donor gNB to a relay node; and

the second transmission time is a transmission time of an access uplink (UL) signal transmitted by a terminal device to the relay node;

the first reception time is a moment when the backhaul DL signal from the donor gNB reaches the relay node;

the second reception time is a moment when the access UL signal from the terminal device reaches the relay node; wherein when the processor performs control on at least one of the first transmission time or the second transmission time according to the reference time, thereby enabling the difference between the first reception time and the second reception time to be less than the preset time difference, the processor is configured to perform at least one of the following:

performing control on the first transmission time, thereby enabling a difference between the first reception time and the reference time to be less than a first preset time difference; or,

performing control on the second transmission time, thereby enabling a difference between the second reception time and the reference time to be less than a second preset time difference; and

wherein when the processor performs control on the second transmission time, the processor is configured to:

transmit a second time adjustment instruction to the terminal device;

wherein the second time adjustment instruction is configured to instruct the terminal device to advance or delay the second transmission time, thereby enabling the difference between the second reception time and the reference time to be less than the preset time difference.

2. The network device according to claim 1 , wherein when the processor determines the reference time, the processor is configured to determine a frame timing of the relay node as the reference time.

3. The network device according to claim 1 , wherein when the processor performs control on the first transmission time, the processor is configured to:

determine a moment when the backhaul DL signal from the donor gNB reaches the relay node; and

compare the moment when the backhaul DL signal from the donor gNB reaches the relay node with the reference time, to obtain a comparison result;

generate a first time adjustment instruction according to the comparison result;

transmit the first time adjustment instruction to the donor gNB; and

wherein the first time adjustment instruction is configured to instruct the donor gNB to advance or delay the first transmission time, thereby enabling the difference between the first reception time and the reference time to be less than the preset time difference.

4. The network device according to claim 1 , wherein when the processor determines the reference time, the processor is configured to determine that the first reception time is the reference time; and

wherein when the processor performs control on at least one of the first transmission time or the second transmission time according to the reference time, thereby enabling the difference between the first reception time and the second reception time to be less than the preset time difference, the processor is configured to:

perform control on the second transmission time, thereby enabling a difference between the second reception time and the reference time to be less than the preset time difference.

5. The network device according to claim 4 , wherein before the processor determines that the first reception time is the reference time, the processor is further configured to:

measure a moment when the backhaul DL signal from the donor gNB reaches the relay node, to obtain the first reception time.

6. The network device according to claim 1 , wherein when the processor determines the reference time, the processor is configured to determine that the second reception time is the reference time; and

wherein when the processor performs control on at least one of the first transmission time or the second transmission time according to the reference time, thereby enabling the difference between the first reception time and the second reception time to be less than the preset time difference, the processor is configured to:

perform control on the first transmission time, thereby enabling a difference between the first reception time and the reference time to be less than the preset time difference.

7. A wireless communication method, performed by a relay node, comprising:

determining a reference time; and

performing control on at least one of a first transmission time or a second transmission time according to the reference time, thereby enabling a difference between a first reception time and a second reception time to be less than a preset time difference;

wherein the first transmission time is a transmission time of a backhaul downlink (DL) signal transmitted by a donor gNB to the relay node; and

the second transmission time is a transmission time of an access uplink (UL) signal transmitted by a terminal device to the relay node;

the first reception time is a moment when the backhaul DL signal from the donor gNB reaches the relay node;

the second reception time is a moment when the access UL signal from the terminal device reaches the relay node; wherein the performing control on at least one of the first transmission time or the second transmission time according to the reference time, thereby enabling the difference between the first reception time and the second reception time to be less than the preset time difference, comprises:

performing control on the first transmission time, thereby enabling a difference between the first reception time and the reference time to be less than a first preset time difference; or,

performing control on the second transmission time, thereby enabling a difference between the second reception time and the reference time to be less than a second preset time difference; and

wherein the performing control on the second transmission time, comprises:

transmitting a second time adjustment instruction to the terminal device;

wherein the second time adjustment instruction is configured to instruct the terminal device to advance or delay the second transmission time, thereby enabling the difference between the second reception time and the reference time to be less than the preset time difference.

8. The method according to claim 7 , wherein the determining a reference time, comprises: determining a frame timing of the relay node as the reference time.

9. The method according to claim 7 , wherein the performing control on the first transmission time, comprises:

determining a moment when the backhaul DL signal from the donor gNB reaches the relay node; and

comparing the moment when the backhaul DL signal from the donor gNB reaches the relay node with the reference time, to obtain a comparison result; and

generating a first time adjustment instruction according to the comparison result;

transmitting the first time adjustment instruction to the donor gNB;

wherein the first time adjustment instruction is configured to instruct the donor gNB to advance or delay the first transmission time, thereby enabling the difference between the first reception time and the reference time to be less than the preset time difference.

10. The method according to claim 7 , wherein the determining the reference time, comprises: determining that the first reception time is the reference time; and

wherein the performing control on at least one of the first transmission time or the second transmission time according to the reference time, thereby enabling the difference between the first reception time and the second reception time to be less than the preset time difference, comprises:

performing control on the second transmission time, thereby enabling a difference between the second reception time and the reference time to be less than the preset time difference.

11. The method according to claim 10 , wherein before the step of determining that the first reception time is the reference time, the method further comprises:

measuring a moment when the backhaul DL signal from the donor gNB reaches the relay node, to obtain the first reception time.

12. The method according to claim 7 , wherein the determining the reference time, comprises: determining that the second reception time is the reference time; and

wherein the performing control on at least one of the first transmission time or the second transmission time according to the reference time, thereby enabling the difference between the first reception time and the second reception time to be less than the preset time difference, comprises:

performing control on the first transmission time, thereby enabling a difference between the first reception time and the reference time to be less than the preset time difference.

13. A computer non-transitory readable storage medium, comprising: a program stored thereon; wherein the program is executed by a processor to implement steps of:

determining a reference time; and

performing control on at least one of a first transmission time or a second transmission time according to the reference time, thereby enabling a difference between a first reception time and a second reception time to be less than a preset time difference;

wherein the first transmission time is a transmission time of a backhaul downlink (DL) signal transmitted by a donor gNB to a relay node; and

the second transmission time is a transmission time of an access uplink (UL) signal transmitted by a terminal device to the relay node;

the first reception time is a moment when the backhaul DL signal from the donor gNB reaches the relay node;

the second reception time is a moment when the access UL signal from the terminal device reaches the relay node; wherein when the processor performs control on at least one of the first transmission time or the second transmission time according to the reference time, thereby enabling the difference between the first reception time and the second reception time to be less than the preset time difference, the processor is configured to perform at least one of the following:

performing control on the first transmission time, thereby enabling a difference between the first reception time and the reference time to be less than a first preset time difference; or,

performing control on the second transmission time, thereby enabling a difference between the second reception time and the reference time to be less than a second preset time difference; and

wherein when the processor performs control on the second transmission time, the processor is configured to:

transmit a second time adjustment instruction to the terminal device;

wherein the second time adjustment instruction is configured to instruct the terminal device to advance or delay the second transmission time, thereby enabling the difference between the second reception time and the reference time to be less than the preset time difference.

14. The computer non-transitory readable storage medium according to claim 13 , wherein when determines the reference time, the program is executed by the processor to determine a frame timing of the relay node as the reference time.

15. The computer non-transitory readable storage medium according to claim 13 , wherein when determining the reference time, the program is executed by the processor to determine that the first reception time is the reference time; and

wherein when performing control on at least one of the first transmission time or the second transmission time according to the reference time, thereby enabling the difference between the first reception time and the second reception time to be less than the preset time difference, the program is executed by the processor to:

perform control on the second transmission time, thereby enabling a difference between the second reception time and the reference time to be less than the preset time difference.