Method and apparatus for resource coordination between vehicle-to-everything devices and user equipment

1 . An inter-device resource coordination method, applied to a first user equipment (UE), comprising:

receiving sidelink control information (SCI) sent by at least one second UE, wherein the SCI comprises indication information for triggering resource coordination; and

sending coordination information to a target second UE, wherein the coordination information is used to instruct the target second UE to perform resource reselection, and the target second UE is at least one of the at least one second UE,

wherein the sending the coordination information to the target second UE comprises:

determining, based on a time-frequency domain location or a time domain location of a data resource indicated in the SCI, one or more UEs on which a resource conflict occurs, wherein the one or more UEs on which the resource conflict occurs comprise a UE that has sent the indication information to the first UE and a UE that does not send the indication information to the first UE;

determining the target second UE from the one or more UEs on which a resource conflict occurs, wherein the target second UE is the UE that has sent the indication information to the first UE; and

sending the coordination information only to the target second UE;

wherein a quantity of transmissions of the coordination information is determined based on:

a capability of the first UE simultaneously transmits the coordination information and HARQ feedback;

and

a maximum transmit power of the first UE.

2 . The inter-device resource coordination method according to claim 1 , further comprising:

selecting, based on a priority, the target second UE from the one or more UEs on which a resource conflict occurs.

3 . The inter-device resource coordination method according to claim 2 , wherein the selecting, based on a priority, the target second UE from the one or more UEs on which a resource conflict occurs comprises any one of the following manners:

determining one or more UEs having the lowest priority in the one or more UEs on which a resource conflict occurs as the target second UE;

determining L UEs having a lower priority in the one or more UEs on which a resource conflict occurs as the target second UE, wherein L is greater than or equal to 1; and

determining a UE, in the one or more UEs on which a resource conflict occurs, having a priority lower than a first preset priority threshold as the target second UE, wherein the first preset priority threshold is preconfigured or configured by a network.

4 . The inter-device resource coordination method according to claim 1 , wherein in a case that the first UE needs to simultaneously transmit the coordination information and HARQ feedback, determination of a quantity of transmissions of the coordination information transmitted comprises any one of the following manners:

transmission of the HARQ feedback has a higher priority than transmission of the coordination information;

transmission of the coordination information has a higher priority than transmission of the HARQ feedback; and

comparing a priority corresponding to the HARQ feedback with a priority corresponding to transmission of the coordination information.

5 . The inter-device resource coordination method according to claim 1 , further comprising:

determining a transmission resource location of the coordination information according to a preset relationship between resource location of the coordination information and a time-frequency domain location occupied by a packet sent by the target second UE.

6 . The inter-device resource coordination method according to claim 5 , wherein the determining a transmission resource location of the coordination information according to a preset relationship between resource location of the coordination information and a time-frequency domain location occupied by a packet sent by the target second UE comprises:

determining the transmission resource location of the coordination information based on at least one of the following parameters:

a priority in the SCI of the target second UE;

an index of a frequency domain sub-channel occupied by a packet sent by the target second UE;

an index of a time domain resource, occupied by a packet sent by the target second UE, in a time domain resource set associated with the coordination information; and

a source identity (ID) in the SCI of the target second UE.

7 . An inter-device resource coordination method, applied to a second user equipment (UE), comprising:

sending sidelink control information (SCI), wherein the SCI comprises a priority and indication information for triggering resource coordination; and

receiving coordination information sent by a first UE, wherein the coordination information is used to instruct the second UE to perform resource reselection on an associated resource,

wherein the second UE is one of one or more UEs on which a resource conflict occurs determined by the first UE based on a time-frequency domain location or a time domain location of a data resource indicated in the SCI, wherein the one or more UEs on which the resource conflict occurs comprise a UE that has sent the indication information to the first UE and a UE that does not send the indication information to the first UE; the coordination information is sent only to the UE that has sent the indication information to the first UE;

wherein a quantity of transmissions of the coordination information is determined based on:

a capability of the first UE simultaneously transmits the coordination information and HARQ feedback;

and

a maximum transmit power of the first UE.

8 . The inter-device resource coordination method according to claim 7 , further comprising any one of:

performing resource reselection determination based on a resource sensing result of the second UE and the coordination information; and

excluding all resources in time domain which associated with the coordination information and performing resource reselection.

9 . The inter-device resource coordination method according to claim 7 , further comprising:

determining a reception resource location of the coordination information according to a preset relationship between resource location of the coordination information and a time-frequency domain location occupied by a packet sent by the second UE.

10 . The inter-device resource coordination method according to claim 9 , wherein the determining a reception resource location of the coordination information according to a preset relationship between resource location of the coordination information and a time-frequency domain location occupied by a packet sent by the second UE comprises:

determining the reception resource location of the coordination information based on at least one of the following parameters:

a priority information in the SCI of the second UE;

an index of a frequency domain sub-channel occupied by a packet sent by the second UE;

an index of a time domain resource, occupied by a packet sent by the second UE, in a time domain resource set associated with the coordination information; and

a source identity (ID) in the SCI of the second UE.

11 . A user equipment (UE), wherein the UE is a first UE, comprising a processor, a memory, and a program or instructions stored in the memory and capable of running on the processor, wherein when the processor executes the program or the instructions, steps of the inter-device resource coordination method according to claim 1 are implemented.

12 . A user equipment (UE), wherein the UE is a second UE, comprising a processor, a memory, and a program or instructions stored in the memory and capable of running on the processor, wherein when the processor executes the program or the instructions, steps of the inter-device resource coordination method according to claim 7 are implemented.

13 . A non-transitory readable storage medium, wherein the non-transitory readable storage medium stores a program or instructions, and when a processor executes the program or instructions, steps of the inter-device resource coordination method according to claim 1 are implemented.

14 . A non-transitory readable storage medium, wherein the non-transitory readable storage medium stores a program or instructions, and when a processor executes the program or instructions, steps of the inter-device resource coordination method according to claim 7 are implemented.