# US 10,375,622 B2 · Train communication system with silent compartments > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,375,622 B2 - Document ID: US10375622B2 - Status: Granted - Kind: B2 - Application number: 15/642,715 - Filed: 2017-07-06 - Published: 2018-01-18 - Granted: 2019-08-06 - Earliest claimed: 2016-07-14 - Assignees: Icomera AB - Applicants: Icomera AB - Inventors: Mats Karlsson - Web page: https://patentgrep.com/patent/US10375622B2 ## CPC - H04W 48/04: based on user or terminal location or mobility data, e.g. moving direction, speed - H04L 41/0816: the condition being an adaptation, e.g. in response to network events - H04M 3/2281: {Call monitoring, e.g. for law enforcement purposes; Call tracing; Detection or prevention of malicious calls} - H04W 4/90: Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS] - H04W 76/50: for emergency connections - H04W 84/005: {Moving wireless networks} - 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) - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) ## Abstract A method and system for wireless communication between a public transport vehicle and a remote server through at least one external mobile network are disclosed. At least one router is provided in the public transport vehicle for receiving and transmitting wireless data to and from a stationary communication server outside the public transport vehicle and to and from at least one client onboard the public transport vehicle. The router determines if a stream of wireless data packets received by said router corresponds to at least one of a VoIP stream and a VoWIFI stream, e.g. by accessing a blacklist with predefined ports and/or destination addresses. It is further determined if the client associated with the stream is within the access area of an access point which is set in a silent compartment mode. ## Claims ### Claim 1 A method for wireless communication between a public transport vehicle and a remote server through at least one external mobile network, comprising: providing at least one router in the public transport vehicle for receiving and transmitting wireless data to and from a stationary communication server outside said public transport vehicle through said at least one external mobile network via at least one antenna and being connected to at least one access point for receiving and transmitting wireless data to and from at least one client onboard the public transport vehicle; determining if a stream of wireless data packets received by said router corresponds to at least one of a VolP stream and a VoWIFI stream; determining if the client associated with said stream is within the access area of an access point which is set in a silent compartment mode; and intercepting said stream if it has been determined that said stream of wireless data packets corresponds to at least one of a VolP stream and a VoWIFI stream and that said client associated with said stream is within the access are of an access point set in a silent compartment mode, wherein access point are set in a silent compartment mode by means of software configuration in the router, wherein the software configuration for setting access point a silent compartment mode or in a normal compartment mode in said router is controllable from an external server. ### Claim 2 (depends on 1) The method according to claim 1, wherein the step of determining if a stream of wireless data packets from said at least one client on board the public transport vehicle corresponds to at least one of a VolP stream and a VoWIFI stream comprises: determining at least one of a source, a destination, a size and pattern of the stream of wireless data packets, and using this for identification if said stream of wireless data packets corresponds to at least one of a VolP stream and a VoWIFI stream. ### Claim 3 (depends on 1) The method according to claim 1, wherein the step of determining if a stream of wireless data packets from said at least one client on board the public transport vehicle corresponds to at least one of a VolP stream and a VoWIFI stream comprises identification of a data packet type or data stream type for said stream of wireless data packets based on deep packet inspection. ### Claim 4 (depends on 1) The method according to claim 1, wherein the step of determining if a stream of wireless data packets from said at least one client on board the public transport vehicle corresponds to at least one of a VolP stream and a VoWIFI stream comprises: comparing a destination address of said stream of wireless data packets to a blacklist comprising at least one predefined address. ### Claim 5 (depends on 1) The method according to claim 1, wherein the step of determining if a stream of wireless data packets from said at least one client on board the public transport vehicle corresponds to at least one of a VolP stream and a VoWIFI stream comprises: comparing a output port of said stream of wireless data packets to a blacklist comprising at least one predefined output port. ### Claim 6 (depends on 1) The method according to claim 1, wherein access point are set in a silent compartment mode by means of hardware configuration on the access point or the router. ### Claim 7 A method for wireless communication between a public transport vehicle and a remote server through at least one external mobile network, comprising: providing at least one router in the public transport vehicle for receiving and transmitting wireless data to and from a stationary communication server outside said public transport vehicle through said at least one external mobile network via at least one antenna and being connected to at least one access point for receiving and transmitting wireless data to and from at least one client onboard the public transport vehicle; determining if a stream of wireless data packets received by said router corresponds to at least one of a VolP stream and a VoWIFI stream; determining if the client associated with said stream is within the access area of an access point which is set in a silent compartment mode; and intercepting said stream if it has been determined that said stream of wireless data packets corresponds to at least one of a VolP stream and a VoWIFI stream and that said client associated with said stream is within the access are of an access point set in a silent compartment mode, further comprising the step of determining whether the VolP stream or VoWIFI stream corresponds to an emergency call, and if so, overriding said interception and allow said stream regardless of whether the client is within the access area of an access point set in a silent compartment mode or not. ### Claim 8 (depends on 7) The method of claim 7, wherein the step of determining if a VolP stream and/or a VoWIFI stream corresponds to an emergency call comprises: comparing a telephone phone number to which said stream is directed to a whitelist comprising at least one predefined emergency telephone number. ### Claim 9 (depends on 7) The method according to claim 7, wherein the step of determining if a stream of wireless data packets from said at least one client on board the public transport vehicle corresponds to at least one of a VolP stream and a VoWIFI stream comprises: determining at least one of a source, a destination, a size and pattern of the stream of wireless data packets, and using this for identification if said stream of wireless data packets corresponds to at least one of a VolP stream and a VoWIFI stream. ### Claim 10 (depends on 7) The method according to claim 7, wherein the step of determining if a stream of wireless data packets from said at least one client on board the public transport vehicle corresponds to at least one of a VolP stream and a VoWIFI stream comprises identification of a data packet type or data stream type for said stream of wireless data packets based on deep packet inspection. ### Claim 11 (depends on 7) The method according to claim 7, wherein the step of determining if a stream of wireless data packets from said at least one client on board the public transport vehicle corresponds to at least one of a VolP stream and a VoWIFI stream comprises: comparing a destination address of said stream of wireless data packets to a blacklist comprising at least one predefined address. ### Claim 12 (depends on 7) The method according to claim 7, wherein the step of determining if a stream of wireless data packets from said at least one client on board the public transport vehicle corresponds to at least one of a VolP stream and a VoWIFI stream comprises: comparing a output port of said stream of wireless data packets to a blacklist comprising at least one predefined output port. ### Claim 13 (depends on 7) The method according to claim 7, wherein access point are set in a silent compartment mode by means of hardware configuration on the access point or the router. ### Claim 14 A wireless communication system for a public transport vehicle comprising: at least one router in the public transport vehicle, said router being configured to receive and transmit wireless data packets to and from a stationary communication server outside said public transport vehicle through at least one exterior mobile network via at least one antenna, and to and from at least one client onboard the public transport vehicle via at least one access point connected to said router, wherein said access points are controllable to be set in a silent compartment mode, wherein said at least one router includes: a controller configured to determine if a stream of wireless data packets from said at least one client on board the public transport vehicle corresponds to at least one of a VolP stream and a VoWIFI stream; and to intercept said stream if it has been determined that said stream of wireless data packets corresponds to at least one of a VolP stream and a VoWIFI stream and that said client associated with said stream is within the access are of an access point set in a silent compartment mode, wherein the access point are controllable to be set in a silent compartment mode by means of software configuration in the router, wherein the software configuration for setting access point in a silent compartment mode or in a normal compartment mode in said router is controllable from an external server. ### Claim 15 (depends on 14) The wireless communication system according to claim 14, wherein the access points are controllable to set in a silent compartment mode by means of hardware configuration on the access point or the router.