# US 2021/0243615 A1 · Method for federating at least two communication networks for mobile terminals and network capable of being federated > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0243615 A1 - Document ID: US20210243615A1 - Status: Published application - Kind: A1 - Application number: 17/050,697 - Filed: 2019-04-26 - Published: 2021-08-05 - Earliest claimed: 2018-04-27 - Assignees: Airbus Defence and Space GmbH - Applicants: Airbus Defence and Space SAS - Inventors: Franck SCHOLLER; Jean-François PEREZ; Jean-Marc MONTENOT; Wannes VOSSEN - Web page: https://patentgrep.com/patent/US20210243615A1 ## CPC - H04W 24/02: Arrangements for optimising operational condition - H04L 41/0803: Configuration setting - H04W 8/02: Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks - H04W 76/15: Setup of multiple wireless link connections - H04W 84/005: {Moving wireless networks} - H04W 84/20: Leader-follower arrangements - H04W 88/16: Gateway arrangements - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A method for federating at least two communication networks for mobile terminals by establishing a dedicated link between the two networks and then configuring one of the networks to use elements of the other network, in particular the user database and the communication policy manager. ## Claims ### Claim 1 A method for federating a first communication network for mobile terminals and a second communication network for mobile terminals, each communication network comprising a base station, a mobility manager, a serving gateway, a user database, a communication policy manager, a packet gateway, each of said first and second communication networks further comprising a router and an orchestrator, the method comprising: establishing a dedicated connection between the two first and second communication networks by establishing a connection between the routers; electing a master orchestrator from among the orchestrators of the first and second networks to federate, defining a master network and a slave network; updating the user database of the master network from the user database of the slave network; the configuring links between: the serving gateway of the master network and the mobility manager of the slave network; the serving gateway of the slave network and the mobility manager of the master network; the mobility manager of the master network and the mobility manager of the slave network; configuring the slave network so that the slave network uses: the user database of the master network; the communication policy manager of the master network. ### Claim 2 (depends on 1) The method for federating communication networks according to claim 1, wherein each communication network has the same addressing plan, the method comprising a step in which the router of each network is dynamically configured, by the orchestrator of its network, to carry out a reciprocal one to one address translation between the two networks. ### Claim 3 (depends on 1) The method for federating communication networks according to claim 1, further comprising: updating each base station as a function of a neighbouring base station; updating the list of serving gateways of each network, each serving gateway being associated with a zone code as a function of its original network. updating each mobility manager as a function of the configuration of the mobility manager of the neighbouring network. ### Claim 4 (depends on 1) The method for federating communication networks according to claim 1, wherein the establishment of the dedicated connection is made by a use of a connection means belonging to the list formed of at least: a wire, a wireless connection. ### Claim 5 (depends on 1) The method for federating communication networks according to claim 1, wherein communications made via the dedicated connection are made using a virtual private network. ### Claim 6 (depends on 1) The method for federating communication networks according to claim 1, wherein a use, by the slave network, of elements of the master network is done by the configuration, in the slave networks, of secondary elements. ### Claim 7 (depends on 6) The method for federating communication networks according claim 6, wherein the configuration of the secondary elements is done by naming, the resolution of the names being configured by the orchestrator of the network at a moment of federation. ### Claim 8 (depends on 1) The method for federating communication networks according to claim 1, wherein a communication network for mobile terminals is a standalone network bubble. ### Claim 9 (depends on 1) The method for federating communication networks according to claim 1, wherein the election of the master orchestrator is done as a function of the hosting and processing capacities of the bubble to which the orchestrator belongs. ### Claim 10 (depends on 1) The method for federating communication networks according to claim 1, wherein access to the applicative functions of a bubble is maintained and is limited to its original users. ### Claim 11 A first communication network for mobile terminals, suited to being federated, with a second communication network for mobile terminals suited to being federated, each communication network for mobile terminals suited to being federated comprising a base station, a mobility manager, a serving gateway, a user database, a communication policy manager, a packet gateway, each communication network further comprising a router and an orchestrator, said first communication network being configured to: establish a dedicated connection with the second communication network by establishing a dedicated connection between the router of the first communication network and the router of the second communication network; elect a master orchestrator from among the orchestrators of the first and second communication networks to federate, defining a master network and a slave network; update the user database of the master network from the user database of the slave network; configure links between: the serving gateway of the master network and the mobility manager of the slave network; the serving gateway of the slave network and the mobility manager of the master network; the mobility manager of the master network and the mobility manager of the slave network; the packet gateway of the master network and the serving gateway of the slave network; configure the slave network so that the slave network uses: the user database of the master network; the communication policy manager of the master network. ### Claim 12 (depends on 11) A communication network according to claim 11, wherein the communication network is a standalone network bubble.