Described is a system and method for power conservation in a wireless
device. The method includes switching, by a wireless computing unit, from
a first communication mode to a second communication mode at a predefined
time interval. The unit receives wireless signals only when in the second
communication mode, and the first communication mode is a power-save
mode. The unit then receives a wireless signal, and initiates a wireless
connection to a wireless arrangement to obtain traffic data from the
wireless arrangement when the signal includes a traffic data indicator
which is indicative of existence of the traffic data. The unit switches
into the first communication mode when the indicator is absent from the
signal.