Multiplex communications – Pathfinding or routing – Through a circuit switch
Patent
1995-06-07
1997-02-04
Hsu, Alpus H.
Multiplex communications
Pathfinding or routing
Through a circuit switch
370384, 370399, H04Q 1104
Patent
active
056006403
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
In the development of development systems, efforts are being made to design software systems which are as modular as possible for controlling the switching system. This is being done primarily with respect to improved decoupling of the individual functions of a switching system and thus a simpler subsequent modification capability as well as improved reusability of the switching software in further developments.
Switching application software which is divided into a plurality of components is known from the article "Object Oriented Software Technologies Applied to Switching Architectures and Software Development Processes" by E. C. Arnold et al from the "International Switching Symposium 1990, Volume 2, June 1990, Stockholm SE, pages 97-106". The components in this case represent logic and physical system entities. For example, the component "call" represents the system entity "call". The component "call" in this case controls the system entity "call" both at the logic level and at the physical level (with the exception of the local physical connection control which is carried out by the local components of the "fabric" type).
SUMMARY OF THE INVENTION
The invention is based on the object of specifying a modular call processing system.
This object is achieved by a call processing system for controlling connections in a switching system, having the following features: a signaling interface system which forms the interface of the call processing system to the signaling type on which the respective connection ends are based, and carries out that part of the logic connection control which is dependent on the type of signaling; a call control system which carries out that part of the logic connection control which is independent of the type of signaling; initialization of connection control processes at the physical level by corresponding connection requests to a resource control system, which connection requests are produced by the signaling interface system and the call control system in a mutually independent manner; and a coordination system which coordinates the mutually independent connection requests submitted to the resource control system by the signaling interface system and the call control system.
The call processing system according to the invention is limited to logic connection control and initialization of physical connection control processors, while the resource control system carries out the physical connection control processes. In consequence, the call processing system is independent of the physical connection control.
The independence of the call control system from different signaling variants is ensured by breaking the call processing system down into a signaling interface system and a call control system.
The independence between the signaling interface system and the call control system is assisted by the coordination system, since these systems can now formulate autonomous connection requests, that is to say connection requests which are independent of one another. Otherwise, the resource control system is relieved of coordination tasks by the coordination system. However, this relief means that the resource control system now need not have any knowledge of the modular dependencies of the call processing system. In consequence, the resource control system can be designed as a general service system for controlling connections at the physical level and can also make its service available to other user systems in addition to the call processing system, such as to a processing system for system administration or to a processing system for signaling administration, for example.
A further embodiment of the invention is characterized in that the call control system and the signaling interface system comprise a transient system having a plurality of transient modules. The transient modules dynamically produce in each case one chain of entities per connection, which entities communicate with one another by means of an information interface which is common to al
REFERENCES:
patent: 4821256 (1989-04-01), Schmidt et al.
patent: 4903258 (1990-02-01), Kuhlmann et al.
patent: 5051982 (1991-09-01), Brown et al.
patent: 5390171 (1995-02-01), Storm
patent: 5434852 (1995-07-01), La Porta et al.
International Switching Symposium, vol. 2, Jun. 1990, E. C. Arnold et al, "Object Oriented Software Technologies Applied to Switching System Architectures and Software Development Processes", pp. 97-106.
IEEE Network: The Magazine of Computer Communications, vol. 4, No. 6, Nov. 1990, J. S. Stacey et al, "Modeling Call Control for Distributed Applications in Telephony", pp. 14-22.
European Transactions on Telecommunications and Related Technologies, vol. 2, No. 4, Aug. 1991, G. P. Balboni et al, "An ATM Switching Testbed", pp. 391-401.
Proceedings of the National Communications Forum, vol. 45, Oct. 1991, S. Cannon, "Switch Architecture for the Intelligent Network", pp. 185-193.
Blair Hamish M.
Cutler John W.
Dent Graham R.
Hoogendoorn Cornelis
Schessel Larry E.
GPT Ltd.
Hsu Alpus H.
Siemens Aktiengesellschaft
LandOfFree
Call processing system for controlling connections in a communic does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Call processing system for controlling connections in a communic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Call processing system for controlling connections in a communic will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-686283