This subclause describes the procedures for tracking V2X UEs geographical location at the VAE server. The V2X UE provides geographical area information to the VAE server upon moving to a new geographical area. This information is used by the VAE server to create and update the mapping between the geographical location and the identification of the V2X UE.
Upon entering a new geographical area, the client subscribes to the geographic area Geo ID B.
The VAE server sends a subscription response to the VAE client.
The VAE server stores the new geographical area information GEO ID B with the client identification information V2X UE ID.
The client unsubscribes from the old geographical area GEO ID A.
The VAE server sends an unsubscription response to the VAE client.
The VAE server removes the old geographical area information GEO ID A associated with the client identification information V2X UE ID.