A method and system are disclosed for fast access to an uplink channel for a
mobile
station in a packet data radio network. A plurality of mobile stations are assigned
to a first uplink channel. A mobile station assigned to the first uplink channel
transmits in an uplink transmission block real time information. In response to
the transmission, a base station reassigns the other mobile stations that are assigned
to the first uplink channel and are involved in the communication of real time
information in a downlink transmission block immediately following the uplink transmission
block. Thereafter, the first mobile station continues transmitting real time information
on the first uplink channel.
