# US 2020/0404584 A1 · Securing the Choice of the Network Visited During Roaming > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0404584 A1 - Document ID: US20200404584A1 - Status: Published application - Kind: A1 - Application number: 16/609,114 - Filed: 2018-04-20 - Published: 2020-12-24 - Earliest claimed: 2017-04-28 - Assignees: Orange - Applicants: Orange - Inventors: Cedric Bonnet; Sanaa El Moumouhi - Web page: https://patentgrep.com/patent/US20200404584A1 ## CPC - H04W 48/08: Access restriction or access information delivery, e.g. discovery data delivery (signalling during connection H04W76/00) - H04W 48/18: Selecting a network or a communication service - 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 48/02: Access restriction performed under specific conditions - H04W 60/04: using triggered events - H04W 76/18: Management of setup rejection or failure - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A method for connecting a terminal outside the range of its home network, to a network of a visited area covered by a plurality of networks. The method includes sending a request relating to the connection, including an identifier relating to the visited area, receiving a response message to the request, including a list of at least one network of the plurality of networks, to which the terminal should connect in priority, disconnecting the terminal and connecting the terminal to the priority network of the list. A processing method includes receiving the request including an identifier relating to the visited area, obtaining, on the basis of the identifier, the list of at least one network from the plurality of networks, to which the terminal should connect in priority, and sending a response message to the request, including the list. ## Claims ### Claim 1 A method of connecting a terminal beyond a range of the terminal's home network, to a network of a visited area covered by a plurality of networks, the method comprising the following acts performed by the terminal: sending of a request relating to the connection, comprising an identifier relating to the visited area, receiving a message of response to the request, comprising a list of at least one priority network of the plurality, to which the terminal must connect by priority, and disconnecting the terminal and connecting the terminal to a priority network of the list. ### Claim 2 (depends on 1) The connection method as claimed in claim 1, where the request is a request for attachment of the terminal to a base station of the visited area. ### Claim 3 (depends on 1) The connection method as claimed in claim 1, where the request is a request for tracking area updating of the terminal. ### Claim 4 (depends on 1) The connection method as claimed in claim 1, where the list is encrypted and decryptable with a key previously shared between the terminal and the home network. ### Claim 5 A processing method of processing a request relating to a connection of a terminal beyond a range of the terminal's home network, to a network of a visited area covered by a plurality of networks, the method comprising the following acts performed by a mobility management entity of the visited network: receiving a request comprising an identifier relating to the visited area, obtaining, on the basis of the identifier, a list of at least one priority network of the plurality, to which the terminal must connect by priority, and sending a message of response to the request, comprising the list. ### Claim 6 (depends on 5) The processing method as claimed in claim 5, where the request is a request for attachment of the terminal to a base station of the network of the visited area. ### Claim 7 (depends on 5) The processing method as claimed in claim 5, where the request is a request for tracking area updating of the terminal. ### Claim 8 (depends on 5) The processing method as claimed in claim 5, where the obtaining is preceded by sending a request for location updating of the terminal. ### Claim 9 (depends on 5) The processing method as claimed in claim 5, where the obtaining is preceded by sending a request for session creation or modification. ### Claim 10 A device for connecting a terminal beyond a range of the terminal's home network, to a network of a visited area covered by a plurality of networks, the device comprising: a sender configured to send a request relating to the connection, comprising an identifier relating to the visited area, a receiver configured to receive a message of response to the request, comprising a list of at least one priority network of the plurality, to which the terminal must connect by priority, and a processor configured to disconnect the terminal and connect the terminal to a priority network of the list. ### Claim 11 A device for processing a request relating to the connection of a terminal beyond a range of the terminal's home network, to a network of a visited area covered by a plurality of networks, the device comprising: a receiver configured to receive the request comprising an identifier relating to the visited area, a processor configured to obtain, on the basis of the identifier, a list of at least one priority network of the plurality, to which the terminal must connect by priority, and a sender configured to send a message of response to the request, comprising the list. ### Claim 12 A system for processing a request relating to a connection of a terminal beyond a range of the terminal's home network, to a network of a visited area covered by a plurality of networks, the system comprising: the plurality of networks of the visited area, the home network, at least one mobile terminal comprising a connection device, which comprises: a sender configured to send a request relating to the connection, comprising an identifier relating to the visited area, a receiver configured to receive a message of response to the request, comprising a list of at least one priority network of the plurality of networks, to which the terminal must connect by priority, and a processor configured to disconnect the terminal and connect the terminal to a priority network of the list, and at least one mobility management entity of the visited network, comprising a processing device, which comprises: a receiver configured to receive the request comprising the identifier relating to the visited area, a processor configured to obtain, on the basis of the identifier, the list of the at least one priority network of the plurality, to which the terminal must connect by priority, and a sender configured to send the message of response to the request, comprising the list. ### Claim 13 (depends on 12) The processing system as claimed in claim 12 furthermore comprising: at least one gateway of the home network, comprising the at least one mobility management entity. ### Claim 14 A non-transitory computer-readable medium comprising a computer program stored thereon, comprising instructions for implementing a method of connecting a terminal beyond a range of the terminal's home network, to a network of a visited area covered by a plurality of networks, when this program is executed by a processor of the terminal, wherein the instructions configure the terminal to perform acts comprising: sending a request relating to the connection, comprising an identifier relating to the visited area, receiving a message of response to the request, comprising a list of at least one priority network of the plurality, to which the terminal must connect by priority, and disconnecting the terminal and connecting the terminal to a priority network of the list. ### Claim 15 A non-transitory computer-readable medium comprising a computer program stored thereon, comprising instructions for implementing a method of processing a request relating to a connection of a terminal beyond a range of the terminal's home network, to a network of a visited area covered by a plurality of networks, when this program is executed by a processor of a mobility management entity, wherein the instructions configure the mobility management entity to perform acts comprising: receiving a request comprising an identifier relating to the visited area, obtaining, on the basis of the identifier, a list of at least one priority network of the plurality, to which the terminal must connect by priority, and sending a message of response to the request, comprising the list.