V2X network assisted side-link configuration and data transmission

1. A user equipment device (UE), comprising:

at least one antenna;

at least one radio, wherein the at least one radio is configured to perform cellular communication using at least one radio access technology (RAT);

one or more processors coupled to the at least one radio, wherein the one or more processors and the at least one radio are configured to perform voice and/or data communications;

wherein the one or more processors are configured to cause the UE to:

establish a radio resource control (RRC) connection with a base station;

transmit, to the base station, first vehicle-to-everything (V 2 X) connection information, including a first V 2 X identifier associated with the UE and a second V 2 X identifier associated with a target UE;

receive, from the base station, a side-link configuration for data transmission with the target UE, wherein the side-link configuration includes a resource allocation defined in time and frequency;

communicate with the target UE using the resource allocation included in the side- link configuration;

upon completion of the communication with the target UE, transmit, to the base station, second V 2 X connection information, wherein the second V 2 X connection information includes the second V 2 X identifier associated with the target UE and an indication to discontinue the communication with the target UE; and

receive, from the base station, an indication that side-link resources have been released.

2. The UE of claim 1 ,

wherein the first V2X information further includes at least one of:

a traffic quality of service requirement;

a traffic pattern requirement; or

a V2X capability associated with the UE.

3. The UE of claim 1 ,

wherein the side-link configuration further includes at least one of:

layer two resource blocks; or

a layer one configuration.

4. The UE of claim 1 ,

wherein the resource allocation specifies a transmit/receive pool of resource blocks defined in time and frequency.

5. The UE of claim 1 ,

wherein the one or more processors are further configured to cause the UE to:

receive, from the base station and during communications with the target UE, a handover command to handover to a new base station, wherein the handover command includes a new side-link communication configuration;

establish a connection with the new base station; and

communicate with the target UE using the new side-link configuration.

6. The UE of claim 1 ,

wherein the one or more processors are further configured to cause the UE to:

detect, during communications with the target UE, a radio link failure;

transmit, to a new base station, a re-establishment request; and

receive, from the new base station, a re-establishment confirmation, wherein the re-establishment confirmation includes a new side-link communication configuration; and

communicate with the target UE using the new side-link configuration.

7. A base station, comprising:

at least one antenna;

at least one radio, wherein the at least one radio is configured to perform cellular communication using at least one radio access technology (RAT);

one or more processors coupled to the at least one radio, wherein the one or more processors and the at least one radio are configured to perform voice and/or data communications;

wherein the one or more processors are configured to cause the base station to:

receive, from a user equipment device (UE) served by the base station, first vehicle-to-everything (V2X) information, including a first V2X identifier associated with the UE;

receive, from the UE, a V2X connection request, wherein the V2X connection request includes the first V2X identifier and a second V2X identifier associated with a target UE;

transmit, to a neighboring base station serving the target UE, a V2X UE pair request, wherein the V2X UE pair request includes a side-link configuration for data transmissions between the UE and the target UE, wherein the side-link configuration includes a resource allocation defined in time and frequency;

receive, from the neighboring base station, a confirmation of the V2X UE pairing; and

transmit, to the UE, the side-link configuration.

8. The base station of claim 7 , wherein the one or more processors are further configured to:

validate the V 2 X information received from the UE; and

transmit, to neighboring base stations, the first V 2 X information.

9. The base station of claim 7 ,

wherein the one or more processors are further configured to:

receive, from neighboring base stations, V2X information associated with UEs served by the neighboring base stations.

10. The base station of claim 7 ,

wherein the side-link configuration further includes at least one of:

layer two resource blocks; or

a layer one configuration; and

wherein the resource allocation specifies a transmit/receive pool of resource blocks defined in time and frequency.

11. The base station of claim 7 ,

wherein the one or more processors are further configured to:

detect, after configuration of the side-link, a handover condition for the UE; and

in response to detection of the handover condition:

transmit location information associated with the UE to a new base station; and

transmit a handover command to the UE, wherein the handover command indicates the new base station and includes instructions to continue side-link communications with the target UE during the handover.

12. The base station of claim 7 ,

wherein the one or more processors are further configured to:

receive, from the UE, a V2X connection release request, wherein the V2X connection release request includes an indication to discontinue the communication with the target UE; and

transmit, to the UE, an indication that the side-link resources have been released.

13. The base station of claim 7 ,

wherein the V2X connection request further includes at least one of:

a traffic quality of service requirement; or

a traffic pattern requirement.

14. A non-transitory computer readable memory medium storing program instructions executable by one or more processors of a base station to cause the base station to:

receive, from a user equipment device (UE) served by the base station, first vehicle-to-everything (V 2 X) information, including a first V 2 X identifier associated with the UE;

receive, from the UE, a V 2 X connection request, wherein the V 2 X connection request includes the first V 2 X identifier and a second V 2 X identifier associated with a target UE;

transmit, to a neighboring base station serving the target UE, a V 2 X UE pair request, wherein the V 2 X UE pair request includes a side-link configuration for data transmissions between the UE and the target UE, wherein the side-link configuration includes a resource allocation defined in time and frequency;

receive, from the neighboring base station, a confirmation of the V 2 X UE pairing; and

transmit, to the UE, the side-link configuration.

15. The non-transitory memory medium of claim 14 , wherein the instructions are further executable by the one or more processors to cause the base station to:

validate the V 2 X information received from the UE; and

transmit, to neighboring base stations, the first V 2 X information.

16. The non-transitory memory medium of claim 14 , wherein the instructions are further executable by the one or more processors to cause the base station to:

receive, from neighboring base stations, V 2 X information associated with UEs served by the neighboring base stations.

17. The non-transitory memory medium of claim 14 , wherein the side-link configuration further includes at least one of:

layer two resource blocks; or a layer one configuration; and

wherein the resource allocation specifies a transmit/receive pool of resource blocks defined in time and frequency.

18. The non-transitory memory medium of claim 14 ,

wherein the instructions are further executable by the one or more processors to cause the base station to:

detect, after configuration of the side-link, a handover condition for the UE; and

in response to detection of the handover condition:

transmit location information associated with the UE to a new base station; and

transmit a handover command to the UE, wherein the handover command indicates the new base station and includes instructions to continue side-link communications with the target UE during the handover.

19. The non-transitory memory medium of claim 14 ,

wherein the instructions are further executable by the one or more processors to cause the base station to:

receive, from the UE, a V 2 X connection release request, wherein the V 2 X connection release request includes an indication to discontinue communication with the target UE; and

transmit, to the UE, an indication that side-link resources have been released.

20. The non-transitory memory medium of claim 14 ,

wherein the V 2 X connection request further includes at least one of:

a traffic quality of service requirement; or

a traffic pattern requirement.