Pre-allocated random access identifiers

A base station comprising:

• a receiver operable to receive a signal from a subscriber station on a random access channel, the received signal comprising an assigned single access identifier uniquely identifying the subscriber station to the base station, the single access identifier assigned, via dedicated signaling, from a subset of access identifiers designated, by the base station, as allocatable access identifiers from a set of access identifiers, the random access channel usable by subscriber stations for transmission without a prior allocation of resources of the random access channel;
• a baseband orthogonal frequency division multiplex (OFDM) processor operable to:
• monitor timing of the received signal from the subscriber station;
• and
• generate a feedback control signal, based on the monitored timing of the received signal, to instruct the subscriber station to advance or delay a transmission time, in order to better align a timing of the subscriber station with a system timing;
• and
• a transmitter operable to transmit the feedback control signal to the subscriber station.