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:
Jul. 04, 2017
Filed:
Aug. 10, 2016
Koninklijke Kpn N.v., The Hague, NL;
Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek Tno, The Hague, NL;
KONINKLIJKE KPN N.V., The Hague, NL;
NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO, Den Haag, NL;
Abstract
A method is disclosed for establishing a device-to-device communication session between mobile devices which are mutually connectable via a D2D communication channel (DDC) and individually connectable to a mobile network (MN), including preloading an initiation key on each of the mobile devices, the initiation key being associated with a validity period; and on each of the mobile devices: verifying a validity of the initiation key based on a current time; if the initiation key is deemed valid, generating a session key using the initiation key by using the initiation key in performing a key agreement procedure between the mobile devices over the D2D communication channel (DDC), the key agreement procedure resulting in the session key if the initiation key used by each of the mobile devices matches; and establishing the D2D communication session over the D2D communication channel (DDC) based on the session key.