Transmission mechanism of the fixed bit speed in media access control of contention system

摘要

(57) Abstract In the bidirectional cable & the system including the controller and the plural user terminals, the method of permitting the right for atsupusutorimu data transmission from the user terminal, in order to form contention permission, processing contention request and, each includes the fact that the list of the connection to which specified bit speed is appointed is kept. The controller forwards the daunsutorimu data stream to the user terminal, the atsupusutorimu data stream receives from the user terminal. The daunsutorimu data stream includes plural permission fields, the atsupusutorimu data stream includes with the atsupusutorimu data slot and the rise stream control slot.