Techniques for supporting location services are disclosed. In an aspect, a generic location session between a terminal and a location server may be established for a particular duration or until the generic location session is terminated by a trigger condition. Parameters related to the generic location session may be exchanged between the terminal and the location server during session establishment. Thereafter, the terminal and the location server may engage in one or more positioning activities at any time during the generic location session. Each positioning activity may be of any type supported by the terminal and the location server. The generic location session can be initiated by either the terminal or the location server. In one design, one entity (e.g., the location server) may initiate the generic location session, and the other entity (e.g., the terminal) may send an end message to terminate the generic location session.