TRANSMISSION IN A SHARED MEDIUM HAVING DIFFERENT ACCESS MODES

摘要

In a telecommunication network including an access point (3) and mobile units (1) a shared communication medium such as a set of frequencies, time slots or codes is shared among the mobile units. For transmissions from the mobile units different access modes are used, e.g. a direct access mode and a scheduled access mode, and such transmissions are also divided in different communica­tion types, each communication type having a priority. In a mode access control unit (7) is determined, for each of the priorities, one of the access modes that is to be used for the communica­tion type that has the respective priority. The mobile units then access, in the case where they have data to transmit, the shared communication medium using the access mode that has been determined for the priority of the communication type to which the data to transmit belongs.