Data is transmitted from a radio communication device (100) by selecting a
signal dependent on data to be transmitted, transmitting to a radio
communication station (200) the selected signal as a random access
transmission, deriving an identifier dependent on the data, and employing
the identifier to identify a subsequently received signal intended for
the radio communication device (100). The data is received at a radio
communication station (200) by receiving the random access signal which
is indicative of the data to be received, determining the data indicated
by the random access signal, deriving an identifier dependent on the
determined data, and including the identifier in a subsequent
transmission from the radio communication station (200) to identify the
intended recipient of the subsequent transmission.