Telecommunications – Radiotelephone system – Special service
Patent
1997-08-22
2000-03-28
Bost, Dwayne D.
Telecommunications
Radiotelephone system
Special service
455445, 455433, 455418, H04M 342, H04M 300, H04Q 720
Patent
active
060442646
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a mobile communication system comprising at least one mobile switching center, mobile subscribers, at least one subscriber database and an intelligent network comprising at least one service switching point, and at least one service control point comprising the database and service logic programs of the intelligent network, whereby the intelligent network contains predefined service triggers, each trigger defining triggering criteria for activating a respective intelligent network service in one of the service control points, and more particularly to activating of the intelligent network service in a mobile communication system.
BACKGROUND OF THE INVENTION
In communication networks, intelligence relates to the ability to have access to stored data, to process it and to make decisions on the basis of the data. Even the present communication networks, such as public switched telephone networks (PSTN), are to some extent intelligent, because they are able to process stored data in relation with, for example, routing of calls. A typical "intelligent" facility in modern communication networks is a conditional call forwarding which requires an analysis of the call situation and routing the call forward on the basis of the stored service profile of the call forwarding. Such intelligent facilities have, however, been an integral part of the basic network, and have thus required, for example, software updating in all the network exchanges in cases of altering or increasing the number of facilities.
An Intelligent Network (IN) is a network architecture which can be incorporated in the basic network, and which makes implementation and controlling of services faster, easier and more flexible. This can be achieved by moving the service control out from the switching exchange into a separate functional unit of the intelligent network. This is how the services can be made independent of the operation of the basic network, and changes in the structure of the basic network or in the software are not required in conjunction with altering or increasing the number of services. In addition to the actual network operator, the intelligent network may contain several service providers.
In fixed networks, standardization of intelligent networks has been rapid in recent years. Standards of intelligent networks include the CCITT Q.1290 and prETS 300 374-1, Intelligent Network Capability Set 1 (CS1). These standards define a specific functional and hierarchical model for the intelligent network. In this model, service control is transferred from the exchange of the basic network to a service control point (SCP) in the intelligent network. The SCP comprises a database and service logic programs (SLP), i.e. computer programs which fulfil the logic structure of a specific programs (service logic). The intelligent network services are created, tested and withdrawn by means of special equipment referred to as service creation environment (SCE). Service management function (SMF) is used for management of subscriber and network information in the database, including service specific information and service programs. The service switching point (SSP) is an exchange, for example that of the basic network, fulfilling the service switching function (SSF), in other words, the recognition of the intelligent network service and activation of interaction with the service control point SCP.
For recognition and activation of an intelligent network service, the intelligent network contains predefined triggers for the service, the triggers defining triggering criteria used for activation of the intelligent network service. The triggering criteria comprise, for example, the phase of the call routing, detection point (DP) according to the ETSI CS1 call model, which detection point is an event relating to call processing. If the triggering criteria defined by the trigger are fulfilled, the intelligent network service is activated in a SCP defined by the trigger.
As stated above, the intelligent n
Huotari Seppo
Turkulainen Veli
Bost Dwayne D.
Legree Tracy M.
Nokia Telecommunications Oy
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