(19)
(11)EP 0 258 654 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
23.08.1989 Bulletin 1989/34

(43)Date of publication A2:
09.03.1988 Bulletin 1988/10

(21)Application number: 87111172.0

(22)Date of filing:  03.08.1987
(51)International Patent Classification (IPC)4H04Q 3/66, H04Q 3/00, H04Q 3/545
(84)Designated Contracting States:
BE CH DE FR GB GR LI

(30)Priority: 27.08.1986 US 900756

(71)Applicants:
  • Szybicki, Edmund
    CH-1217 Meyrin (CH)
  • Müller, Hans E.
    CH-1223 COLOGNY/GENEVE (CH)

(72)Inventors:
  • Szybicki, Edmund
    CH-1217 Meyrin (CH)
  • Müller, Hans E.
    CH-1223 COLOGNY/GENEVE (CH)

(74)Representative: Jörchel, Dietrich R.A. et al
c/o BUGNION S.A. Conseils en Propriété Industrielle 10, route de Florissant Case postale 375
1211 Genève 12 Champel
1211 Genève 12 Champel (CH)


(56)References cited: : 
  
      


    (54)Adaptive, tariff dependent traffic routing and automatic network management system for multiservice telecommunication networks


    (57) An adaptive, tariff dependent traffic routing system, which controls routing of traffic and performs management of network resources in multi-node telecommu­nication networks, where the cost for a communication depends on the type of service provided and on the dis­tance between the originating node and the destination. Each node can originate traffic, receive and/or transit traffic over inter-node trunks. The system is realized by means of a central computer, which has connections to the SPC nodes of the network over two-way data links. The computer has access to data stored in the computer's memo­ry, containing the actual distance- and service sensitive tariffs applied in the network. By frequent scanning of the network, the computer has a global view of the actual out-of-service and traffic load status in the nodes and in the different trunk groups. Based on the tariffs and on the global network status view the system determines the policy for routing traffic in the network, such that the revenue is maximized. When determining the routing deci­sions, the out-of-service and overloaded network equipment is automatically by-passed. Similarly, traffic to out-of-­service, overloaded or hard-to-reach destinations is not allowed to enter the network. The same applies to traffic destined to access-restricted nodes. The routing policy is transmitted to the SPC nodes in terms of routing instruc­ tions, specific for each originating node and each destina­tion as well as specific for each type of a service. Since new instructions are issued after each network scanning, these will vary with the actual traffic and out-of-service situation in the network. In this way an adaptive, revenue maximizing traffic routing and network management system is achieved.







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