Packet switching control system and method
First Claim
1. A packet switching control system for controlling a packet switched connection between a subscriber terminal (1) and an end terminal (5) identified by a connection endpoint identification in a communication network (4), comprising:
- storing means for storing a subscriber-specific screening list for a plurality of connection endpoint identifications;
control means (7) for performing a screening control of the packet switched connection on the basis of a screening parameter corresponding to the connection endpoint identification of the end terminal (5), wherein said control means (7) belongs to a different entity than said storing means; and
screening means for performing a screening process, using the screening list, for each packet wherein a connection endpoint identifier (CEI) of each packet is checked as to allowed destination, and packets are passed when the destination is allowed whereas data packets from/to unallowed destinations are discarded.
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Accused Products
Abstract
A packet switching control system and method are described, for controlling a packet switched connection between a subscriber terminal and an end terminal identified by a connection endpoint identification in a communication network. A subscriber-specific screening list for a plurality of connection endpoint identifications is provided, wherein an subscriber-specific screening control of the packet switched connection is performed on the basis of the screening list. The screening list may contain detection point settings for an IN interrogation so as to provide an interworking function between the IN and the packet network. Moreover, the screening list may include a charging information to thereby define different charging parameters for packet connections to different connection endpoints. This enables the subscriber to define price limits for predetermined connections.
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Citations
28 Claims
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1. A packet switching control system for controlling a packet switched connection between a subscriber terminal (1) and an end terminal (5) identified by a connection endpoint identification in a communication network (4), comprising:
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storing means for storing a subscriber-specific screening list for a plurality of connection endpoint identifications;
control means (7) for performing a screening control of the packet switched connection on the basis of a screening parameter corresponding to the connection endpoint identification of the end terminal (5), wherein said control means (7) belongs to a different entity than said storing means; and
screening means for performing a screening process, using the screening list, for each packet wherein a connection endpoint identifier (CEI) of each packet is checked as to allowed destination, and packets are passed when the destination is allowed whereas data packets from/to unallowed destinations are discarded. - View Dependent Claims (2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 14)
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7. A racket switching control system for controlling a packet switched connection between a subscriber terminal (1) and an end terminal (5) identified by a connection endpoint identification in a communication network (4), comprising:
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storing means for storing a subscriber-specific screening list for a plurality of connection endpoint identifications; and
control means (7) for performing a screening control of the packet switched connection on the basis of a screening parameter corresponding to the connection endpoint identification of the end terminal (5), wherein said control means (7) belongs to a different entity than said storing means; and
wherein the subscriber-specific screening list is initialized as an empty list which is updated by the control means (7) each time the control means (7) receives a data packet with the connection endpoint identification not included in the subscriber-specific screening list. - View Dependent Claims (8)
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15. A subscriber terminal (1) for controlling a packet switched connection to an end terminal (5) identified by a connection endpoint identification in a communication network (4), comprising:
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loading means for loading a subscriber-specific screening list;
control means (7) for performing a packet screening for uplink packets on the basis of a screening list parameter corresponding to the connection endpoint identification of the end terminal (5); and
screening means for performing a screening process, using the screening list, for each packet wherein a connection endpoint identifier (CEI) of each packet is checked as to allowed destination, and packets are passed when the destination is allowed whereas data packets from/to unallowed destinations are discarded. - View Dependent Claims (16)
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17. A packet switching control system for controlling a packet switched connection between a subscriber terminal (1) and an end terminal (5) identified by a connection endpoint identification in a communication network (4), comprising:
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storing means for storing a subscriber-specific screening list for a plurality of connection endpoint identifications, wherein a detection point information for an interrogation of an Intelligent Network (IN) service control function can be set selectively for a specific connection endpoint identification in the subscriber-specific screening list;
control means (7) for triggering an IN interrogation, when a data packet with a connection endpoint identification, for which a detection point information is set, is transmitted via the packet switched connection; and
screening means for performing a screening process, using the screening list, for each packet wherein a connection endpoint identifier (CEI) of each packet is checked as to allowed destination, and packets are passed when the destination is allowed whereas data rackets from/to unallowed destinations are discarded. - View Dependent Claims (18, 19, 20)
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21. A packet switching control method for controlling a packet switched connection between a subscriber terminal (1) and an end terminal (5) identified by a connection endpoint identification in a communication network (4), comprising the steps of:
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providing a subscriber-specific screening list for a plurality of connection endpoint identifications;
performing a screening control of the packet switched connection in another entity on the basis of a screening parameter corresponding to the connection endpoint identification of the end terminal (5); and
performing a screening process, using the screening list, for each packet wherein a connection endpoint identifier (CEI) of each packet is checked as to allowed destination, and packets are passed when the destination is allowed whereas data packets from/to unallowed destinations are discarded. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. A packet switching control method for controlling a packet switched connection between a subscriber terminal (1) and an end terminal (5) identified by a connection endpoint identification in a communication network (4), comprising the steps of:
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providing a subscriber-specific screening list for a plurality of connection endpoint identifications;
selectively setting a detection point information for an interrogation of an Intelligent Network (IN) service control function for a specific connection endpoint identification in the subscriber-specific screening list;
triggering an IN interrogation, when a data packet with a connection endpoint identification, for which a detection point information is set, is transmitted via the packet switched connection; and
performing a screening process, using the screening list, for each packet wherein a connection endpoint identifier (CEI) of each packet is checked as to allowed destination, and packets are passed when the destination is allowed whereas data packets from/to unallowed destinations are discarded.
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Specification