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.

Date of Patent:
Mar. 22, 2022

Filed:

Nov. 06, 2017
Applicants:

Koninklijke Kpn N.v., Rotterdam, NL;

Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek Tno, s-Gravenhage, NL;

Inventors:

Erwin Willem Middelesch, The Hague, NL;

Sander De Kievit, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04L 29/06 (2006.01); H04W 36/00 (2009.01); H04W 12/03 (2021.01); H04W 12/033 (2021.01); H04W 12/041 (2021.01); H04W 12/0431 (2021.01);
U.S. Cl.
CPC ...
H04L 63/0272 (2013.01); H04L 63/061 (2013.01); H04W 12/03 (2021.01); H04W 12/033 (2021.01); H04W 12/041 (2021.01); H04W 12/0431 (2021.01); H04W 36/0038 (2013.01); H04W 36/03 (2018.08);
Abstract

A device () is configured to derive a first security key based on information relating to a first node (), to request use of or to use a further device () as a relay to the mobile communication network and to determine whether the further device is connected to the first node and/or receive a message when another device, e.g. the first node, has determined that the further device is not connected to the first node. The device is further configured to, upon determining that the further device is not connected to the first node or upon receipt of the message, derive a second security key based on information relating to a second node () to which the further device is connected and transmit information via the further device, the information being encrypted using the second security key.


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