In a method of sidelink resource control, a first core network configured based on a first radio access technology receives a sidelink control request from a first user equipment that accesses the first core network using the first radio access technology, the sidelink control request requesting sidelink control information for a second radio access technology that is not supported by the first core network. The sidelink control information for the second radio access technology is obtained directly from a second core network outside the first core network, the second core network being configured based on the second radio access technology, and the sidelink control information for the second radio access technology being provisioned by the second core network. The obtained sidelink control information for the second radio access technology is provided, via the first radio access technology and in response to the sidelink control request, to the first user equipment.