1. A method comprising: causing transmission of natural traffic and keepalive messages over a connection from a network entity to a mobile device at a frequency determined by at least one keepalive parameter; and dynamically adjusting, using information relating to a channel used to transport the natural traffic and the keepalive messages, the at least one keepalive parameter for subsequent transmission of the keepalive messages from the network entity so as to maintain the connection at a minimum frequency of keepalive messages.