The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 03, 2022
Filed:
Jun. 07, 2017
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Catherine Truchan, Lorraine, CA;
Suresh Krishnan, Suwanee, GA (US);
Daniel Migault, Montreal, CA;
Stere Preda, Longueuil, CA;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
Systems and methods are disclosed herein that relate to secure monitoring or interception of traffic in a wireless communications system. In some embodiments, a method of operation of a network node comprises receiving a list of one or more obfuscated target identifiers from a monitoring node, where each obfuscated target identifier is a user identifier of a target user that is encrypted using a first encryption key that is unknown to the network node. The method further comprises receiving an encrypted packet from another network node and determining whether an encrypted user identifier of the encrypted packet matches one of the obfuscated target identifiers. The method further comprises, if the encrypted user identifier matches one of the obfuscated target identifiers, further encrypting the encrypted packet using a second encryption key negotiated between the network node and the monitoring node and transmitting the further encrypted packet to the monitoring node.