Secondary and primary stations for use in telecommunication networks and their telecommunication networks, methods of communication

摘要

In a transmission system in which a plurality of secondary stations 30, ..., 40 are connected to the primary station 6 via medium 14, it is required to have upstream communication capability, , The upstream access protocol must have a high transmission efficiency, especially under high load conditions. To achieve this, request transmission cells are used, where all secondary stations can send a transmission request. The primary station transmits an allocation signal in response to the transmission request signal so that the secondary stations can transmit their payload data. Immediately after all payload data has been transmitted by the secondary stations, the next transmission request cell is available for transmission request signals.