Lawful interception of location based service traffic

• US 20100130231A1
• Filed: 07/29/2004
• Published: 05/27/2010
• Est. Priority Date: 07/29/2004
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Lala, Alessandro, Fiorillo, Lorenzo, Santoro, Pompeo, Iovieno, Maurizio, De Luca, Enrico
• Granted Patent: US 7,966,023 B2
• Time in Patent Office: Days
• US Class Current: 455/456.300
• CPC Class Codes: H04L 63/304 intercepting circuit switched data communications lawful interception of wireless network communications H04W12/02
• CPC Class Codes: H04W 12/80 Arrangements enabling lawful interception [LI]

Abstract

The present invention relates to methods and arrangements in a telecommunication system to generate Interception Related Information IRI related to positioning activities involving a mobile subscriber/equipment MSA The system provides information to an Intercept configuration unit ICU, collected from an Intercept Access Point IAP; MSC, GMLC that is associated to the monitored subscriber/equipment. The method comprises the following steps: receiving to the Intercept Access Point IAP; MSC, GMLC from the Intercept configuration unit ICU, a request to monitor the mobile subscriber/equipment MSA. Registration in the Intercept Access Point IAP; MSC, GMLC, of a positioning activity involving the monitored subscriber/equipment. Delivering information related to the positioning activity, from the Intercept Access Point IAP; MSC, GMLC to the Law Enforcement Agency LEA.

Claims

1. Method in a telecommunication system to generate Interception Related Information (IRI) related to positioning activities involving a mobile subscriber/equipment (MSA), which system provides information to an Intercept Configuration Unit (ICU), collected from an Intercept Access Point (IAP;

MSC, GMLC) that is associated to the monitored subscriber/equipment, which method comprises the following steps;

receiving to the Intercept Access Point (IAP;

MSC, GMLC) from the Intercept configuration unit (ICU), a request to monitor the mobile subscriber/equipment (MSA);

characterized in

registration in the Intercept Access Point (IAP;

MSC, GMLC), of a positioning activity involving the monitored subscriber/equipment;

delivering information related to the positioning activity, from the Intercept Access Point (IAP;

MSC, GMLC) to the Intercept Configuration Unit (ICU).

2. Method in a mobile telecommunication system according to claim 1 whereby the Intercept configuration unit (ICU) comprises a Law Enforcement Agency (LEA) attached to an Administration Function (ADMF), which method comprises the following further steps:

sending from the Law Enforcement Agency (LEA) to the Administration Function (ADMF), the request to monitor the mobile subscriber/equipment (MSA);

forwarding the request from the Administration Function to the Intercept Access Point (IAP;

MSC).

3. Method to generate Interception Related Information of a monitored subscriber/equipment according to claim 1 or 2 whereby the information delivered from the Intercept Access Point to the Intercept Configuration Unit (ICU) comprises the registered positioning activity.

4. Method to generate Interception Related Information of a monitored subscriber/equipment according to claim 1 or 2 whereby the information delivered from the Intercept Access Point to the Law Enforcement Agency comprises geographical location and information related to the positioning activity for the mobile subscriber/equipment (MSA).

5. Method to generate Interception Related Information of a monitored subscriber/equipment according to any of claims 1-4, which monitored mobile subscriber/equipment is located in a first Public Land Mobile Network (PLMN1) in the telecommunication system and whereby the Intercept Access Point is a Mobile Subscriber Center (MSC) located in the first Mobile Network (PLMN1).

6. Method to generate Interception Related Information of a monitored subscriber/equipment according to claim 5, which telecommunication system comprises an external client (LCS) associated to the Mobile Subscriber Center (MSC) and whereby the positioning activity comprises any of the following steps:

Reception of a positioning request from the external client (LCS)-(MT-LR1)

Delivering of location result to the external client (LCS)-(MT-LR2)

Reception of a positioning request from the target subscriber (MSA)-(MO-LR1)

Delivering of location result to the external client (MSA)-(MO-LR2)

Delivering of location result to the target subscriber (MSA)-(MO-LR3)

Triggering of positioning request from the network (PLMN1)-(NI-LR1)

Delivering of location result to an emergency center (EC) in the network—

LR2).

7. Method to generate Interception Related Information of a monitored subscriber/equipment according to any of claims 1-4, whereby the Intercept Access Point is a Gateway Mobile Location Center (GMLC1) located in a first Public Land Mobile network (PLMN1) and which monitored mobile subscriber/equipment is located in a second network (PLMN2) in the telecommunication system.

8. Method to generate Interception Related Information of a monitored subscriber/equipment according to claim 7 which telecommunication system comprises an external client (LCS2) associated to the Gateway Mobile Subscriber Center (GMLC1) and whereby the positioning activity comprises any of the following steps:

Reception of a positioning request from the external client (LCS2)-(MT-LR1)

Delivering of location result to the external client (LCS2)-(MT-LR2)

Reception of a positioning request from the target subscriber (MSA)-(MO-LR1)

Delivering of location result to the external client (LCS2)-(MO-LR2).

9. Arrangement in a telecommunication system to generate Interception Related Information (IRI) related to positioning activities involving a mobile subscriber/equipment (MSA), which system provides information to an Intercept Configuration Unit (ICU), collected from an Intercept Access Point (IAP;

MSC, GMLC) that is associated to the monitored subscriber/equipment, which arrangement comprises;

means for receiving to the Intercept Access Point (IAP;

MSC, GMLC) from the Intercept configuration unit (ICU), a request to monitor the mobile subscriber/equipment (MSA) characterized in

means for registration in the Intercept Access Point (IAP;

MSC, GMLC), of a positioning activity involving the monitored subscriber/equipment;

means for delivering information related to the positioning activity, from the Intercept Access Point (IAP;

MSC, GMLC) to the Law Enforcement Agency (LEA).

10. Arrangement in a mobile telecommunication system according to claim 9 which Intercept configuration unit (ICU) comprises a Law Enforcement Agency (LEA) attached to an Administration Function (ADMF) and which arrangement further comprises:

means for sending from the Law Enforcement Agency (LEA) to the Administration Function (ADMF), the request to monitor the mobile subscriber/equipment (MSA);

means for forwarding the request from the Administration Function to the Intercept Access Point (IAP;

MSC).

11. Arrangement to generate Interception Related Information of a monitored subscriber/equipment according to claim 9 or 10, which monitored mobile subscriber/equipment is located in a first Public Land Mobile Network (PLMN1) in the telecommunication system and whereby the Intercept Access Point is a Mobile Subscriber Center (MSC) located in the first Mobile Network (PLMN1).

12. Arrangement to generate Interception Related Information of a monitored subscriber/equipment according to claim 11, which telecommunication system comprises an external client (LCS) associated to the Mobile Subscriber Center (MSC), which arrangement comprises at least one of the following means:

Means for reception of a positioning request from the external client (LCS)

Means for delivering of location result to the external client (LCS)

Means for reception of a positioning request from the target subscriber (MSA)

Means for delivering of location result to the external client (MSA)

Means for delivering of location result to the target subscriber (MSA)

Means for triggering of positioning request from the network (PLMN1)

Means for delivering of location result to an emergency center (EC) in the network.

13. Arrangement to generate Interception Related Information of a monitored subscriber/equipment according to claim 9 or 10, whereby the Intercept Access Point is a Gateway Mobile Location Center (GMLC1) located in a first Public Land Mobile network (PLMN1) and which monitored mobile subscriber/equipment is located in a second network (PLMN2) in the telecommunication system.

14. Arrangement to generate Interception Related Information of a monitored subscriber/equipment according to claim 13 which telecommunication system comprises an external client (LCS2) associated to the Gateway Mobile Subscriber Center (GMLC1) and which arrangement comprises at least one of the following means:

Means for reception of a positioning request from the external client (LCS2)

Means for delivering of location result to the external client (LCS2)

Means for reception of a positioning request from the target subscriber (MSA)

Means for delivering of location result to the external client (LCS2).