Network arrangement and method relating to telecommunications

• US 6,452,929 B1
• Filed: 08/27/1997
• Issued: 09/17/2002
• Est. Priority Date: 02/28/1995
• Status: Expired due to Term

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Israelsson, Per
• Primary Examiner(s): Olms, Douglas
• Assistant Examiner(s): Phunkulh, Bob A.
• Application Number:
  US08/926,620
• Time in Patent Office: 1,847 Days
• Field of Search: 370/389, 370/392, 370/395, 370/396, 370/397, 370/400, 370/401, 370/395.2, 709/200, 709/201, 709/239, 709/238
• US Class Current: 370/400
• CPC Class Codes: H04Q 2213/13057 Object-oriented software
• CPC Class Codes: H04Q 2213/13503 object-oriented systems
• CPC Class Codes: H04Q 2213/13526 resource management
• CPC Class Codes: H04Q 2213/13535 distributed systems - also domains in service creation
• CPC Class Codes: H04Q 2213/13541 routing
• CPC Class Codes: H04Q 3/0029 Provisions for intelligent networking
• CPC Class Codes: H04Q 3/54583 Software development, e.g. procedural, object oriented, software generation, software testing

Abstract

A network arrangement and a method respectively for call processing in a communications system and to a communications system including such network arrangement. The network arrangement in which a call, which here may relate to, e.g., speech, data, video transmission, etc., is to be set up between an originating point and at least one terminating point which are virtually represented by circuits, includes a number of switches which are virtually represented by path objects, and the communication path includes a call part and a connection part. The connection part includes a number of connection objects each including a number of path objects particularly virtually representing switches which are arranged in an object oriented hierarchical structure. At least a number of path objects each include a base path object and a subpath object which are hierarchically arranged in a super class and a subclass, respectively. A base path object can be used by a connection object independently of the corresponding subpath object. The behavior of the subpath object is given by the particular routing case.

Claims

1. A network arrangement for call processing in a communications system in which a call is to be set up via a transmission path between an originating point and at least one terminating point, each virtually represented by a circuit, the system including a number of switches virtually represented by path objects, the network arrangement comprising:

a call part and a connection part, each representing a layer in the transmission path, the call part controlling the connection part, the connection part including a number of connection objects, each comprising a number of path objects, wherein the connection objects and path objects are arranged in an object-oriented hierarchical structure;

at least a number of the path objects each comprise a base path object and a sub path object that are hierarchically arranged in a superclass and a subclass respectively;

the base path object can be used by a respective connection object independently of the corresponding sub path object; and

a behavior of the sub path object is given by a routing case.

2. The network arrangement of claim 1, wherein the behavior of a sub path object further is given by the switches.

3. The network arrangement of claim 1, wherein a specialized sub path object is assigned for each routing case and/or switch.

4. The network arrangement of claim 3, wherein when the routing case indicates an end of selection at a first routing attempt, the sub path object comprises a local path object and a circuit representing a switch is transparently controlled through the local path object.

5. The network arrangement of claim 4, wherein for the local path object does not have internal circuits.

6. The network arrangement of claim 1, wherein when circuits representing access points are internal circuits of the same zone, the sub path object is a transit path object.

7. The network arrangement of claim 6, wherein the respective connection object controls the transit path object to connect a speech transmission path both ways independently of orders given by a user.

8. The network arrangement of claim 1, wherein if a first routing does not involve an end of selection or a leaving of the zone from which the selection originates, the sub path object is defined as an access path object.

9. The network arrangement of claim 1, wherein when a routing is performed before an end of selection of a subsequent routing has been found, the sub path object is an access path object.

10. The network arrangement of claim 8, wherein at least one of the circuits representing an access point is an internal circuit.

11. The network arrangement of claim 8, wherein the access path object only sets the speech path according to a state given by the user.

12. The network arrangement of claim 1, wherein when a routing is not a first routing and when the routing results in a leaving of a zone, the sub path object comprises an anchor path object.

13. The network arrangement of claim 1, wherein when a routing is not a first routing and the routing results in coming to the last zone, but no end of selection is provided, the sub path object comprises an anchor path object.

14. The network arrangement of claim 12, wherein an anchor path object owns both circuits representing access points, one of which is an anchor point.

15. The network arrangement of claim 14, wherein an anchor path object only releases the circuit which does not represent an anchor point when it receives a first release order.

16. The network arrangement of claim 1, wherein if a first routing case indicates that a speech path leaves the zone, the sub path object comprises an access and anchor path.

17. The network arrangement of claim 1, wherein if a first routing case indicates that the speech path goes to a subsequent zone and an end of selection is reached, the sub path object is defined as an access and anchor path object.

18. The network arrangement of claim 16, wherein one of the circuits of an access and anchor path object representing an access point is internal and an anchor point which can be used by two different connections.

19. A connection part in a network arrangement in a communications system having a number of originating points and a number of terminating points, in which, for providing communication between an originating point and at least one terminating point, a transmission path is ordered, which order is separated into a call part and a connection part which is controlled by the call part, the connection part comprising:

a number of connection objects each using at least one path object each representing a switch, and each path object comprising a base path object and a sub path object;

wherein the connection objects and path objects are arranged in an object-oriented hierarchical structure, each connection object can use a base path object independently of the corresponding sub path object, and the behavior of the sub path object is given by a routing case.

20. A method for providing communication between an originating point and at least one terminating point in a communications network based on an object-oriented structure, comprising the steps of:

ordering a transmission path from the originating point to the at least one terminating point, and

separating the order into a call part and a connection part, the connection part comprising a number of connection objects,

wherein each connection object uses at least one path object representing a switch, each path object comprising a base path object and a sub path object, the connection objects carry out a consecutive routing analysis and decision procedure using the base path objects independently of the corresponding sub path object, and a behavior of the sub path object is given by the particular routing case.