Patent
Method and switch for lawful interception
Jiangtao Zhang,Bengt Johansson,Lasse Olsson,Sten Pettersson +3 more
- 19 Apr 2013
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TL;DR: In this article, a gateway comprises a controller for controlling, using a flow control protocol, the flow of packets through a switch controlled by the gateway, which receives a lawful interception activation request, comprising a target identity; activates (S12), in response to said request, lawful interception on a target identified by the target identity, duplicates (S13), in the switch, packets targeting the target; encapsulates (S14) the duplicated packets with an additional header; and forwards (S15) duplicates from the switch directly to the lawful interception service provider entity (1
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Abstract: The present disclosure relates to methods and devices, of activating lawful interception. According to the present disclosure, a gateway comprises a controller for controlling, using a flow control protocol, the flow of packets through a switch controlled by the gateway. The switch receives (S11), from the controller, a lawful interception activation request, comprising a target identity; activates (S12), in response to said request, lawful interception on a target identified by the target identity; duplicates (S13), in the switch, packets targeting the target; encapsulates (S14) the duplicated packets with an additional header; and forwards (S15) duplicates from the switch directly to the lawful interception service provider entity (1) for further distribution to a Lawful interception Agency.
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Citations
Patent
Map tables for hardware tables
Viquez Calderon Claudio Enrique
- 26 Oct 2017
TL;DR: In this paper, a system for maintaining a flow pipeline includes a logical table interface engine to expose an interface to receive a maintenance request regarding the flow pipeline of a network element, a map engine to maintain an entry in a first hardware table based on an action of the maintenance request associated with a logical flow table, and a hardware table engine to update the second hardware table of the network element based on the entry in the first table.
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Patent
Methods and systems for performing lawful interception (li) in communication networks involving content adulteration with colluding agents
Seetharaman Swaminathan,Jayaraman Venkata Subramanian +1 more
- 17 Aug 2017
TL;DR: In this article, a method for lawful interception in a communication network involving adulteration by colluding agents is disclosed, which includes activating, selectively, communication data duplication functionality in at least one of a plurality of network devices, each of which being located in separate network segments of a communication path between users.
5
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Optimized packet replication in predictive routing in lisp for cellular handover
Padma Pillay-Esnault
- 27 Jun 2017
TL;DR: In this paper, various implementations of handover operation of a user entity (UE) from a source base station to a target base station using a predictive routing feature in LISP or other ID protocols for packet replication to reduce latency in packet delivery to the user entity are presented.
5
Patent
Method and node for handling control plane signaling
Olsson Lasse
- 16 Nov 2017
TL;DR: In this article, a control plane Evolved Packet Core, cEPC, node (205) was used for handling control plane signaling in a communications system. But the node was not designed for the control plane.
5
Patent
Apparatus and method for lawful interception
Lindgren Tommy Johannes,Saha Sumanta,Soderlund Jani Olavi,Savolainen Niko Markus +3 more
- 20 Jul 2016
TL;DR: In this article, a method is provided for receiving (414) from a gateway apparatus an intercept request regarding user equipment in the communication system; creating or modifying a processing rule regarding the user equipment by including interception in the rule; transmitting (502) to a network switch processing user equipment connections a command to clone and encrypt each signalling or data packet of the connection and to transmit the encrypted signalling and data packets to a given network apparatus.
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Patent
Internet of things lawful interception
Francesco Attanasio
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TL;DR: In this paper, the authors present methods and arrangements for providing a Law Enforcement Agency (200) with things data related to one or more target identities using a Radio-Frequency Identification (RFID) Data Manager (124), which is managing RFID data traffic comprising things data in a radio-frequency data system, wherein said manager (124) is provided with an Intercepting Control Element (ICE;160).
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