Communications network and method of regulating access to the bu

Details Communications network and method of regulating access to the bu Communications network and method of regulating access to the bu

1991-06-27

1994-08-09

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 8511, 34082552, H04J 302

Patent

active

053373120

ABSTRACT:
There is provided a method of regulating access to a unidirectional bus transmission system to which a plurality of stations identified by labels are connected, on which system data are transmitted in time slots which are released in numbered cycles by a headend unit, and in which said headend unit sends, for each of said cycles, a request poll message carrying the respective cycle number. The method comprises i) logically combining a source station label and a destination station label, ii) deriving a first control number from the logical combination of the source station label and the destination station label, iii) using, for requesting slots in which to transmit said data, a request poll message carrying a cycle number which corresponds to said first control number, and iv) subsequently transmitting said data in slots of a cycle whose number corresponds to said first control number.

REFERENCES:
patent: 4586175 (1986-04-01), Bedard et al.
patent: 4679192 (1987-07-01), Vanbrabant
patent: 4922244 (1990-05-01), Hullett et al.
patent: 4977557 (1990-12-01), Phung et al.
patent: 5001707 (1991-03-01), Kasitpaiboon et al.
patent: 5082622 (1992-01-01), Nassehi et al.
patent: 5115430 (1992-05-01), Hahne et al.

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