Abstract: This invention is related to S8 Home Routing (S8HR), under specification by the Global System for Mobile Communications (GSM) Association (GSMA) and 3rd Generation Partnership Project (3GPP). In a first aspect of the invention, a method is provided for enabling Lawful Interception (LI) when a wireless communication terminal performs S8HR roaming. The method comprises receiving, at a first LMISF from a first SGW serving the wireless communication terminal, IMS-related information of the wireless communication terminal required for performing LI, and providing, from the first LMISF upon the wireless communication terminal relocating to a second SGW serving the wireless communication terminal, the received IMS-related information of the wireless communication terminal required for performing LI, to a second LMISF associated with the second SGW.

Abstract: A method and apparatus for providing access to an encrypted communication between a sending node and a receiving node to a Law Enforcement Agency (LEA). A Key Management Server (KMS) function stores cryptographic information used to encrypt the communication at a database. The cryptographic information is associated with an identifier used to identify the encrypted communication between the sending node and the receiving node. The KMS receives a request for Lawful Interception, the request including an identity of a Lawful Interception target. The KMS uses the target identity to determine the identifier, and retrieves the cryptographic information associated with the identifier from the database. The cryptographic information can be used to decrypt the encrypted communication. The KMS then sends either information derived from the cryptographic information or a decrypted communication towards the LEA. This allows the LEA to obtain a decrypted version of the communication.

Abstract: This invention is related to S8 Home Routing (S8HR), under specification by the Global System for Mobile Communications (GSM) Association (GSMA) and 3rd Generation Partnership Project (3GPP). In a first aspect of the invention, a method is provided for enabling Lawful Interception (LI) when a wireless communication terminal performs S8HR roaming. The method comprises receiving, at a first LMISF from a first SGW serving the wireless communication terminal, IMS-related information of the wireless communication terminal required for performing LI, and providing, from the first LMISF upon the wireless communication terminal relocating to a second SGW serving the wireless communication terminal, the received IMS-related information of the wireless communication terminal required for performing LI, to a second LMISF associated with the second SGW.

Abstract: A method, system, and a computer program product for reducing consumption of resources for lawful interception or retention data related to traffic concerning a 2G/3G target mobile connected to a telecommunications network interworking with Evolved Packet System is provided. A first parameter value in traffic for which lawful interception or data retention has been activated is detected at a first node. Based on at least the first parameter value, whether the traffic will be intercepted or retained at a second node crossed by the traffic is evaluated. If the second node will intercept or retain the traffic, the first node foregoes a lawful interception request or retention of intercepted data.

Abstract: A method for providing Law Enforcement Agencies in a telecommunications network with interception and/or retention data related to a target mobile node in a Proxy Mobile Internet Protocol domain connected to the telecommunications network through a Mobile Access Gateway, comprises the steps of configuring at least one of said Mobile Access Gateway and a Local Mobility Anchor to operate as Intercepting Control Elements or Data Retention sources.

Abstract: A method and apparatus for providing access to an encrypted communication between a sending node and a receiving node to a Law Enforcement Agency (LEA). A Key Management Server (KMS) function stores cryptographic information used to encrypt the communication at a database. The cryptographic information is associated with an identifier used to identify the encrypted communication between the sending node and the receiving node. The KMS receives a request for Lawful Interception, the request including an identity of a Lawful Interception target. The KMS uses the target identity to determine the identifier, and retrieves the cryptographic information associated with the identifier from the database. The cryptographic information can be used to decrypt the encrypted communication. The KMS then sends either information derived from the cryptographic information or a decrypted communication towards the LEA. This allows the LEA to obtain a decrypted version of the communication.

Abstract: The invention relates to a radio network controller (RNC) for receiving a LOCATION_REPORTING_CONTROL message and analyzing a value of a request type information element received in the LOCATION_REPORTING_CONTROL message. The RNC directly determines requested location information for a user equipment (UE) if the request information element indicates sending location information as a direct response to the LOCATION_REPORTING_CONTROL message or the RNC determines the requested location information if the UE changes the service area if the request information element indicates sending location information at a change of service area by the UE. The RNC then sends a LOCATION_REPORT message comprising the location information and the request type information element to at least one control node.

Abstract: The present invention relates to methods and arrangements in a telecommunication system to override current access rights. The telecommunication system comprises an Access Point IAP; MSC, SGSN associated with a Configuration Unit ICU. The method comprises receiving to the Access Point IAP; MSC, SGSN from the Configuration Unit ICU, a request to monitor a system member MS, SIM. The method further comprises receiving to the Access Point from the Configuration Unit, a request to override deprived access rights for the system member MS, SIM. The method further comprises overriding in the Access Point IAP; MSC, SGSN, the deprived access rights for the member.

Abstract: A method, system, and a computer program product for reducing consumption of resources for lawful interception or retention data related to traffic concerning a 2G/3G target mobile connected to a telecommunications network interworking with Evolved Packet System is provided. A first parameter value in traffic for which lawful interception or data retention has been activated is detected at a first node. Based on at least the first parameter value, whether the traffic will be intercepted or retained at a second node crossed by the traffic is evaluated. If the second node will intercept or retain the traffic, the first node foregoes a lawful interception request or retention of intercepted data.

Abstract: A method, system, and a computer program product for reducing consumption of resources for lawful interception or retention data related to traffic concerning a 2G/3G target mobile connected to a telecommunications network interworking with Evolved Packet System is provided. At least a first parameter value in data for which lawful interception or data retention has been activated is detected at a first node. Based on at least the first parameter value, whether the traffic is intercepted or retained at a second node crossed by the traffic in the same network is evaluated. If the second node is located downstream of the first node, lawful interception requests or intercepted data are filtered out.

Abstract: A method and apparatus for performing Lawful Interception in a communications network. An Access Transfer Control Function (ATCF) receives an activation message instructing lawful interception. The activation message includes a subject identity. The ATCF sends intercept related information to a Mediation Function at a Lawful Intercept node. The intercept related information relates to a communication session in which the subject participates.

Abstract: A method and apparatus for providing access to an encrypted communication between a sending node and a receiving node to a Law Enforcement Agency (LEA). A Key Management Server (KMS) function stores cryptographic information used to encrypt the communication at a database. The cryptographic information is associated with an identifier used to identify the encrypted communication between the sending node and the receiving node. The KMS receives a request for Lawful Interception, the request including an identity of a Lawful Interception target. The KMS uses the target identity to determine the identifier, and retrieves the cryptographic information associated with the identifier from the database. The cryptographic information can be used to decrypt the encrypted communication. The KMS then sends either information derived from the cryptographic information or a decrypted communication towards the LEA. This allows the LEA to obtain a decrypted version of the communication.

Abstract: The invention relates to a method for distinguishing between LOCATION_REPORT messages to avoid ambiguities. Therefore, a value of an information element of request type is returned by a radio network controller, depending on an intended receiver of the location information. A control node receiving the information element value analyses said value and determines the receiver depending on the result of said analysis.

Abstract: The invention relates to a radio network controller (RNC) for receiving a LOCATION— REPORTING— CONTROL message and analyzing a value of a request type information element received in the LOCATION— REPORTING— CONTROL message. The RNC directly determines requested location information for a user equipment (UE) if the request information element indicates sending location information as a direct response to the LOCATION— REPORTING— CONTROL message or the RNC determines the requested location information if the UE changes the service area if the request information element indicates sending location information at a change of service area by the UE. The RNC then sends a LOCATION— REPORT message comprising the location information and the request type information element to at least one control node.

Abstract: A method for providing Law Enforcement Agencies in a telecommunications network with interception and/or retention data related to a target mobile node in a Proxy Mobile Internet Protocol domain connected to the telecommunications network through a Mobile Access Gateway, comprises the steps of configuring at least one of said Mobile Access Gateway and a Local Mobility Anchor to operate as Intercepting Control Elements or Data Retention sources.

Abstract: A method for providing Law Enforcement Agencies in a telecommunications network with interception and/or retention data related to a target mobile node in a Proxy Mobile Internet Protocol domain connected to the telecommunications network through a Mobile Access Gateway, comprises the steps of configuring at least one of said Mobile Access Gateway and a Local Mobility Anchor to operate as Intercepting Control Elements or Data Retention sources.

Abstract: A method and apparatus for performing Lawful Interception in a communications network. An Access Transfer Control Function (ATCF) receives an activation message instructing lawful interception. The activation message includes a subject identity. The ATCF sends intercept related information to a Mediation Function at a Lawful Intercept node. The intercept related information relates to a communication session in which the subject participates.

Abstract: The invention relates to a method for distinguishing between LOCATION_REPORT messages to avoid ambiguities. Therefore, a value of an information element of request type is returned by a radio network controller, depending on an intended receiver of the location information. A control node receiving the information element value analyses said value and determines the receiver depending on the result of said analysis.

Abstract: The invention relates to a method for distinguishing between LOCATION_REPORT messages to avoid ambiguities. Therefore, a value of an information element of request type is returned by a radio network controller, depending on an intended receiver of the location information. A control node receiving the information element value analyses said value and determines the receiver depending on the result of said analysis.

Abstract: The present invention relates to a method to enhance resolution of location information of a mobile user in an Evolved Packet communication System. The system comprises a Mobility Management Entity that provides the user with at least one tracking area in which the user is able to move without location information being reported, The method comprises the following steps: receiving to the Mobility Management Entity, a location activation message valid for the user. receiving to the Mobility Management Entity, a service request related to the user; detecting in the Mobility Management Entity, user location information with higher resolution than the at least one tracking area level resolution; sending from the Mobility Management Entity, a monitoring message comprising high resolution information of the user's location within the at least one tracking area.