Device for transferring data on a mainframe and many terminals fits in a transmission framework with useful signal and signaling data phases for downlinks and uplinks directly or indirectly identified by identification keys.

摘要

A device for transferring data using a mainframe and many terminals is incorporated in a transmission framework alongside useful signal data phases (51) and signaling data phases (421,422) for downlinks (41) and uplinks (51). Signaling data phases for downlinks are divided into mainframe-specific and protocol-specific signaling data phases. The positions of both these signaling data phases are directly or indirectly identified by identification keys (61,62).