1. A method in a mobile station (MS) for reducing latency in a communications channel, the method comprising: indicating, by the MS to a Radio Access Network, the support thereof for a reduced time transmission interval (RTTI), wherein the indicating operation further comprises inserting information in an access burst sent by the MS to the BSS at initial system access on a Random Access Channel (RACH), wherein the information indicates that the MS supports the RTTI; and, receiving, by the MS, an Immediate Assignment message sent by the RAN, wherein the Immediate Assignment message allocates to the MS more than one time slot (TS) on an uplink of the communications channel and one or more time slots on a downlink of the communications channel.