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:
Feb. 10, 2026
Filed:
Sep. 19, 2023
Airbus Ds Slc, Elancourt, FR;
Olivier Paterour, Elancourt, FR;
François Piroard, Elancourt, FR;
AIRBUS DS SLC, Elancourt, FR;
Abstract
A method for establishing an IPCON Mission Critical Data Internet Protocol Connectivity MCData session in a communications network according to the 3GPP MCS 3rd Generation Partnership Program Mission Critical System standard. The network includes an emitting MCData entity, a destination MCData entity and an MCData transport service connected to the emitting and destination MCData entities. The method includes obtaining, from the emitting MCData entity, a DPPK MCData Payload Protection Key and a DPPK-ID MCData Payload Protection Key Identifier, transmitting a SIP-INVITE message comprising the DPPK key and the DPPK-IK key identifier, from the emitting MCData entity to the destination MCData entity via the MCData transport service, authenticating the message, by the destination MCData entity, and determining the DPPK key and the DPPK-ID key identifier, by the destination MCData entity, and establishing an IP tunnel between the emitting MCData entity and the destination MCData entity.