Base station configuration for V2X

1. A method comprising:

receiving, by a first base station from a second base station, a first message comprising first configuration parameters of a plurality of cells of the second base station, the first configuration parameters comprising:

a first identifier of a first cell of the plurality of cells; and

at least one first vehicle-to-everything (V2X) parameter of the first cell indicating whether the first cell supports at least one first V2X service;

making, by the first base station, a handover decision for a wireless device based at least on the at least one first V2X parameter; and

sending, by the first base station to the second base station, a handover request message for the wireless device in response to the handover decision.

2. The method of claim 1 , wherein the first configuration parameters further comprising:

a second identifier of a second cell in the plurality of cells; and

at least one second V2X parameter of the second cell indicating whether the second cell supports at least one second V2X service.

3. The method of claim 1 , further comprising receiving, by the first base station from the wireless device, a radio resource control (RRC) message comprising at least one first information element indicating that the wireless device supports one or more V2X services, wherein the first base station makes the handover decision further based on the at least one first information element.

4. The method of claim 1 , wherein the at least one first V2X parameter further indicates at least one of:

the first cell supports only V2X services;

the second base station is associated with at least one road side unit (RSU) for V2X services;

a public land mobile network (PLMN) associated with the first cell supports only V2X services; or

a temporary mobile group identity (TMGI) associated with the first cell.

5. The method of claim 1 , wherein the at least one first V2X parameter further indicates that the first cell supports at least one of:

vehicle-to-infrastructure (V2I) services;

vehicle-to-vehicle (V2V) services;

vehicle-to-network (V2N) services; or

vehicle-to-pedestrian (V2P) services.

6. The method of claim 1 , wherein the at least one first V2X parameter further indicates that the first cell supports at least one of:

multimedia broadcast multicast service single frequency network (MBSFN) based V2X services;

single cell point to multipoint (SC-PTM) based V2X services; or

sidelink based V2X services.

7. The method of claim 1 , wherein the handover request message comprises a second information element indicating that the wireless device supports one or more V2X services.

8. The method of claim 1 , further comprising determining, by the first base station, one or more second configuration parameters of the wireless device based on the configuration parameters, wherein the one or more second configuration parameters comprise at least one of:

a transmission power;

an antenna parameter; or

a handover configuration parameter.

9. A base station comprising:

one or more processors;

memory storing instructions that, when executed by the one or more processors, cause the base station to:

receive, from a second base station, a first message comprising first configuration parameters of a plurality of cells of the second base station, the first configuration parameters comprising:

a first identifier of a first cell of the plurality of cells; and

at least one first vehicle-to-everything (V2X) parameter of the first cell indicating whether the first cell supports at least one first V2X service;

make a handover decision for a wireless device based at least on the at least one first V2X parameter; and

send, to the second base station, a handover request message for the wireless device in response to the handover decision.

10. The base station of claim 9 , wherein the first configuration parameters further comprising:

a second identifier of a second cell in the plurality of cells; and

at least one second V2X parameter of the second cell indicating whether the second cell supports at least one second V2X service.

11. The base station of claim 9 , further comprising receiving, by the first base station from the wireless device, a radio resource control (RRC) message comprising at least one first information element indicating that the wireless device supports one or more V2X services, wherein the first base station makes the handover decision further based on the at least one first information element.

12. The base station of claim 9 , wherein the at least one first V2X parameter further indicates at least one of:

the first cell supports only V2X services;

the second base station is associated with at least one road side unit (RSU) for V2X services;

a public land mobile network (PLMN) associated with the first cell supports only V2X services; or

a temporary mobile group identity (TMGI) associated with the first cell.

13. The base station of claim 9 , wherein the at least one first V2X parameter further indicates that the first cell supports at least one of:

vehicle-to-infrastructure (V2I) services;

vehicle-to-vehicle (V2V) services;

vehicle-to-network (V2N) services; or

vehicle-to-pedestrian (V2P) services.

14. The base station of claim 9 , wherein the at least one first V2X parameter further indicates that the first cell supports at least one of:

multimedia broadcast multicast service single frequency network (MBSFN) based V2X services;

single cell point to multipoint (SC-PTM) based V2X services; or

sidelink based V2X services.

15. The base station of claim 9 , wherein the handover request message comprises a second information element indicating that the wireless device supports one or more V2X services.

16. The base station of claim 9 , wherein the instructions, when executed, further cause the base station to determine one or more second configuration parameters of the wireless device based on the first configuration parameters, wherein the one or more second configuration parameters comprising at least one of:

a transmission power;

an antenna parameter; or

a handover configuration parameter.

17. A method comprising:

sending, by a first base station to a second base station, a first message comprising configuration parameters of a plurality of cells of the first base station, the configuration parameters comprising:

a first identifier of a first cell of the plurality of cells; and

at least one first vehicle-to-everything (V2X) parameter of the first cell indicating whether the first cell supports at least one first V2X service;

receiving, by the first base station from the second base station, a handover request message in response to a handover decision for a wireless device, wherein the handover decision is made based at least on the at least one first V2X parameter; and

sending, by the first base station to the second base station, a handover response message comprising configuration information for the wireless device.

18. The method of claim 17 , wherein the configuration parameters further comprising:

a second identifier of a second cell in the plurality of cells; and

at least one second V2X parameter of the second cell indicating whether the second cell supports at least one second V2X service.

19. The method of claim 17 , further comprising receiving, by the second base station from the wireless device, a radio resource control (RRC) message comprising at least one first information element indicating that the wireless device supports one or more V2X services, wherein the second base station makes the handover decision further based on the at least one first information elements.

20. The method of claim 17 , wherein the at least one first V2X parameter further indicates at least one of:

the first cell supports only V2X services;

the first base station is associated with at least one road side unit (RSU) for V2X services;

a public land mobile network (PLMN) associated with the first cell supports only V2X services; or

a temporary mobile group identity (TMGI) associated with the first cell.