A method (300) and system (200) for adding a connection identifier to an existing power saving class. The method can include the steps of—at a mobile unit (212) that is associated with at least one existing power saving class—generating (310) a type-length-value that specifies the identification of the existing power saving class, and integrating (312) the type-length-value into a dynamic service message request. The method can also include the step of transmitting (314) the dynamic service message request to a base station (210) such that the connection identifier will be automatically added to the existing power saving class without requiring deactivation or redefinition of the existing power saving class.