Methods, system and communication devices related to lawful interception
The invention relates to methods, communication devices, computer programs and computer program products related to Lawful Interception, LI. An LI, Administration Function, ADMF, sends a request over an X1 interface to a Network Element, NE, that is configured to perform an action associated with an LI, to add information associated with a destination or modify information of an existing destination for a message to be sent from the NE to the LI ADMF over the X1 interface. The NE receives the request, adds information associated with a destination or modifies information of an existing destination, and sends a response to the LI ADMF over the X1 interface, wherein the response comprises a result associated with the request.
1. A communication device comprising a lawful interception (LI) Administration Function (ADMF), the communication device comprising a processor and a memory, said memory containing instructions executable by said processor, whereby the communication device is operative to:
select information about a type of issue to be sent in a message to the LI ADMF from a network element (NE) over an X1 interface according to ETSI TS 103 221-1;
send a request to the NE, that is configured to perform an action associated with a lawful interception, to add information associated with the LI ADMF and information about one or more interfaces on the NE over which the message will be sent, or to modify information associated with the LI ADMF and information about one or more interfaces for the message to be sent from the NE to the LI ADMF over the X1 interface, wherein the request comprises the information about the type of issue in a DeliveryType field or in an X1 DeliveryTypeFilter field; and
receive a response from the NE to the request, wherein the response comprises a result associated with the request.
2. The communication device according to claim 1 , wherein the added or modified information comprises a destination identifier, a human-readable name associated with the LI ADMF, and an address of the LI ADMF.
3. The communication device according to claim 1 , wherein the response comprises information representative of any one of the following:
an OK-Acknowledged and Completed, if the request is successfully completed;
an OK-Acknowledged if the request cannot be completed within a predetermined time; and
a predetermined error if the NE was unable to perform or understand the request.
4. The communication device according to claim 1 , wherein the request comprises information indicative of two or more interfaces for the message to be sent over, wherein the two or more interfaces are X1 and X2, or X1 and X3, or X1 and X2 and X3.
5. The communication device according to claim 1 , wherein the request is a CreateDestinationRequest message or a ModifyDestinationRequest message.
6. The communication device according to claim 1 , wherein the message is a report issue request, wherein the report issue request is to be sent from the NE to the LI ADMF after the NE has identified the type of issue, wherein the type of issue comprises an issue related to a task, a destination, and the NE.
7. The communication device according to claim 1 , wherein the request is a message that comprises the fields of CreateDestinationRequest and an X1 DeliveryTypeFilter field, wherein the X1DeliveryTypeFilter field comprises information of the type of issue that can be delivered to the LI ADMF over the X1 interface from the NE.
8. A communication device, which hosts a network element (NE) and comprises a processor and a memory, said memory containing NE instructions for performing an action associated with a lawful interception and executable by said processor, whereby said communication device is operative to:
receive a request from a lawful interception (LI) Administration Function (ADMF), wherein the request comprises information that instructs the NE to add information associated with the LI ADMF and information about one or more interfaces on the NE over which a message will be sent, or to modify information associated with the LI ADMF and information about one or more interfaces for the message to be sent from the NE to the LI ADMF over an X1 interface according to ETSI TS 103 221-1, wherein the request comprises information about a type of issue in a Delivery Type field or in an X1DeliveryTypeFilter field;
add the information associated with the LI ADMF and the information about one or more interfaces on the NE over which the message will be sent, or modify the information associated with the LI ADMF and the information about one or more interfaces for the message to be sent from the NE to the LI ADMF over the X1 interface according to ETSI TS 103 221-1; and
send a response to the request, wherein the response comprises a result associated with the request.
9. The communication device according to claim 8 , wherein the added or modified information comprises a destination identifier, a human-readable name associated with the LI ADMF, and an address of the LI ADMF.
10. The communication device according to claim 8 , wherein the response comprises information representative of any one of the following:
an OK-Acknowledged and Completed, if the request is successfully completed;
an OK-Acknowledged if the request cannot be completed within a predetermined time; and
a predetermined error if the NE was unable to perform or understand the request.
11. The communication device according to claim 8 , wherein the request comprises information indicative of two or more interfaces for the message to be sent over, wherein the two or more interfaces are X1 and X2, or X1 and X3, or X1 and X2 and X3.
12. The communication device according to claim 8 , wherein the request is a CreateDestinationRequest message or a ModifyDestinationRequest message.
13. The communication device according to claim 8 , wherein the message is a report issue request, wherein the report issue request is to be sent from the NE to the LI ADMF after the NE has identified the type of issue, wherein the type of issue comprises an issue related to a task, a destination, and the NE.
14. The communication device according to claim 8 , wherein the request is a message that comprises the fields of CreateDestinationRequest and an X1 Delivery TypeFilter field, wherein the X1DeliveryTypeFilter field comprises information of the type of issue that can be delivered to the LI ADMF over the X1 interface from the NE.
15. The communication device according to claim 8 , wherein the request is a message that comprises the fields of ModifyDestinationRequest and an X1 Delivery TypeFilter field, wherein the X1DeliveryTypeFilter field comprises information of the type of issue that can be delivered to the LI ADMF over the X1 interface from the NE.
16. The communication device according to claim 8 , wherein the LI ADMF is configured for sending the request as a first message to the NE after establishment of a connection with the NE.
17. The communication device of claim 8 , the communication device being a radio base station.
18. The communication device of claim 8 , wherein the NE is one of an Access and Mobility Management Function, a User Plane Function, and a Unified Data Management.
19. A method performed by a communication device comprising lawful interception (LI) Administration Function (ADMF), the method comprising:
selecting information about a type of issue to be sent in a message to the LI ADMF from a network element (NE) over an X1 interface according to ETSI TS 103 221-1;
sending a request to the NE, that is configured to perform an action associated with a lawful interception, to add information associated with the LI ADMF and information about one or more interfaces on the NE over which the message will be sent, or to modify the information associated with the LI ADMF and the information about one or more interfaces for the message to be sent from the NE to the LI ADMF over the X1 interface, wherein the request comprises the information about the type of issue in a DeliveryType field or in an X1DeliveryTypeFilter field; and
receiving a response from the NE to the request, wherein the response comprises a result associated with the request.
20. A method performed by a communication device hosting a network element (NE), the method comprising:
receiving a request from a lawful interception (LI) Administration Function (ADMF) for adding information associated with the LI ADMF and information about one or more interfaces on the NE over which a message will be sent, or for modifying information associated with the LI ADMF and information about one or more interfaces for a message to be sent from the NE to the LI ADMF over an X1 interface according to ETSI TS 103 221-1, wherein the request comprises information about a type of issue in a DeliveryType field or in an X1 DeliveryTypeFilter field;
adding the information associated with the LI ADMF and the information about one or more interfaces on the NE over which a message will be sent, or modifying the information associated with the LI ADMF and the information about one or more interfaces for a message to be sent from the NE to the LI ADMF over an X1 interface according to ETSI TS 103 221-1; and
sending a response to the request, wherein the response comprises a result associated with the request.