Patent ID: 7088686

Claim:
A method having a frame structure for transmitting digital data in a radio communication system, the radio communication system including a plurality of central units, each of the central units assigned a plurality of subscribers, the plurality of subscribers including digital voice services, each of the digital voice services being accommodated in a data packet inside the frame structure, the method comprising: providing multiframes, each of the multiframes being divided into a plurality of containers, each of the containers being selected to be so large that a complete transmission frame, including at least one of an uplink data packet and a downlink data packet, and corresponding signaling data, can be accommodated in a single one of the containers; monitoring by a first one of the central units at least one complete one of the multiframes; determining free capacity of frequency channels for further multiframes as a function of the monitoring; occupying one of the frequency channels that has free capacity; when there is a collision with a second one of the central units, the second one of the central units using a same time slot and a same frequency channel for a transmission frame as the first central unit, at least one of the first one of the central units and the second one of the central units: i) immediately refraining from occupying the time slot, and ii) attempting occupation again after a time lag.