A method includes: receiving a request at a Secure User Plane Location (SUPL) Location Platform (SLP) for location-related service; producing a positioning method SUPL message that includes a posmethod parameter that includes a positioning protocol indicator indicating that SET capability transfer and positioning method selection are to be conducted in a positioning protocol layer; and sending the positioning method SUPL message from the SLP to a SUPL Enabled Terminal (SET) using a SUPL User Plane Location Protocol (ULP).