Content for  TS 23.287  Word version:  18.4.0

The user's profile in the UDM contains the subscription information to give the user permission to use V2X services. At any time, the operator can remove the UE subscription rights for V2X services from user's profile in the UDM, and revoke the user's permission to use V2X services. The following subscription information is defined for V2X services:

1. whether the UE is authorized to perform V2X communication over PC5 reference point as Vehicle UE, Pedestrian UE, or both, including for LTE PC5 and for NR PC5.
2. UE-PC5-AMBR per PC5 RAT, including UE-PC5-AMBR for LTE PC5 and UE-PC5-AMBR for NR PC5.
3. the list of the PLMNs where the UE is authorized to perform V2X communication over PC5 reference point. For each PLMN in the list, the RAT(s) over which the UE is authorized to perform V2X communications over PC5 reference point.
4. PC5 QoS parameters as defined in clause 5.4.2 used by NG-RAN.

The UDM may retrieve a) and b) from the UDR. a) and b) are provided by the UDM to the AMF during UE Registration procedure as defined in clause 4.2.2.2 of TS 23.502 using Nudm_SDM service for Subscription data type "V2X Subscription data" and the AMF provides a) and b) to NG-RAN as part of the UE context information. c) and d) are provided by the UDR to the PCF during the UE Policy Association Establishment procedure as defined in clause 4.16.11 of TS 23.502 and UE Policy Association Modification procedure as defined in clause 4.16.12 of TS 23.502 using Nudr service for Data Set "Policy Data" and Data Subset "Policy Set Entry". If the subscription information provided to the PCF from UDR is changed (e.g., PC5 QoS related parameters, the list of PLMNs where the UE is authorized to perform V2X communication over PC5 reference point), the PCF initiates the UE Configuration Update procedure as specified in clause 6.2.2.