| 摘要 |
Method of transmitting information having different priorities in accordance with the DQDB protocol, in which a head station (41, 42) of a transmission channel (1, 2) always assigns to every time slot a priority by means of a code in the access field and an end station (51, 52) of each transmission channel always stores periodically the number of access units (31, 32, 33) which transmit information having different priorities in time slots having a corresponding priority, and in which the ratio of the numbers of time slots which have different priorities and which are emitted by the head station is adjusted accordingly. Two different ways of storing the number of access units having different priorities are discussed. According to a first way, all the active access units report their priority periodically and according to a second way, all the nonactive access units report and access units having a higher priority which become active/inactive send start/stop codes.
|
