# US 2021/0243577 A1 · Method, Apparatus, and Computer-Readable Medium for Intelligent Transportation System (ITS) Message Distribution > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0243577 A1 - Document ID: US20210243577A1 - Status: Published application - Kind: A1 - Application number: 17/236,153 - Filed: 2021-04-21 - Published: 2021-08-05 - Earliest claimed: 2018-10-08 - Assignees: Telefonaktiebolaget LM Ericsson (publ) - Applicants: Telefonaktiebolaget LM Ericsson (publ) - Inventors: Ali el Essaili; Thorsten Lohmar; Yunpeng Zang - Web page: https://patentgrep.com/patent/US20210243577A1 ## CPC - H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P] - H04W 4/02: Services making use of location information - H04W 4/021: Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences - H04W 4/029: Location-based management or tracking services - H04W 4/44: for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H] - H04W 60/06: De-registration or detaching - H04W 64/003: {locating network equipment} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Embodiments include methods performed by a V2X application enabler (VAE) client, of a V2X User Equipment (UE) arranged for communication with a VAE server. Such methods include sending, to the VAE server, a first request for registration or de-registration to receive intelligent transportation system (ITS) messages associated with at least one of the following: a first V2X service, when an identifier of the first V2X service is included in the first request; and a first geographic area, when an identifier of the first geographic area is included in the first request. Such methods also include receiving, from the VAE server, a first response comprising an acknowledgement of the first request for registration or de-registration. Embodiments also include complementary methods and/or procedures performed by VAE servers, as well as V2X UEs, VAE servers, and computer-readable media configured in accordance with the exemplary methods and/or procedures. ## Claims ### Claim 1 A method performed by a V2X application enabler (VAE) client, of a V2X User Equipment (UE) arranged for communication with a VAE server, the method comprising: sending, to the VAE server, a first request for registration or de-registration to receive intelligent transportation system (ITS) messages associated with at least one of the following: a first V2X service, when an identifier of the first V2X service is included in the first request; and a first geographic area, when an identifier of the first geographic area is included in the first request; and receiving, from the VAE server, a first response comprising an acknowledgement of the first request for registration or de-registration. ### Claim 2 (depends on 1) The method of claim 1, wherein: the first request includes an identifier of the V2X UE, and the first response does not include the identifier of the V2X UE. ### Claim 3 (depends on 1) The method of claim 1, wherein the first request includes the identifier of the first geographic area and the identifier of the first V2X service, indicating registration or de-registration to receive ITS messages associated with the first V2X service in the first geographic area. ### Claim 4 (depends on 1) The method of claim 1, wherein: the first request is a first registration request; and the method further comprises receiving, from the VAE server, one or more ITS messages associated with at least one of the first V2X service and the first geographic area, as indicated in the first registration request. ### Claim 5 (depends on 1) The method of claim 1, further comprising: sending, to the VAE server, a second request for registration or de-registration to receive ITS messages associated with at least one of the following: a second V2X service, when an identifier of the second V2X service is included in the second request; and a second geographic area, when an identifier of the second geographic area is included in the second request; and receiving, from the VAE server, a second response comprising an acknowledgement of the second request for registration or de-registration. ### Claim 6 (depends on 5) The method of claim 5, wherein: the first request is for registration to receive ITS messages; the second request is for de-registration to receive ITS messages; and identifiers of one or more of the following are included in both the first and second requests: a same V2X service and a same geographic area. ### Claim 7 (depends on 5) The method of claim 5, wherein: the first request is for registration to receive ITS messages; the second request is for registration to receive ITS messages; and the second request includes at least one of the following: an identifier of a V2X service that is not included in the first request; and an identifier of a geographic area that is not included in the first request. ### Claim 8 (depends on 1) A V2X User Equipment (UE) comprising: communication interface circuitry configured to communicate with a V2X application enabler (VAE) server; and processing circuitry operably coupled with the communication interface circuitry, whereby the processing circuitry and the communication interface circuitry are configured to perform VAE client operations corresponding to the method of claim 1. ### Claim 9 (depends on 8) The V2X UE of claim 8, wherein: the first request includes an identifier of the V2X UE, and the first response does not include the identifier of the V2X UE. ### Claim 10 (depends on 8) The V2X UE of claim 8, wherein: the first request is a first registration request; and the processing circuitry and the communication interface circuitry are further configured to receive, from the VAE server, one or more ITS messages associated with at least one of the first V2X service and the first geographic area, as indicated in the first registration request. ### Claim 11 A method performed by a V2X application enabler (VAE) server in communication with a VAE client of a User Equipment (UE) the method comprising: receiving, from the VAE client, a first request for registration or de-registration to receive intelligent transportation system (ITS) messages associated with at least one of the following: a first V2X service, when an identifier of the first V2X service is included in the first request; and a first geographic area, when an identifier of the first geographic area is included in the first request; performing a registration or a de-registration of the VAE client to receive ITS messages according to the first request; and sending, to the VAE client, a first response comprising an acknowledgement of the first request for registration or de-registration. ### Claim 12 (depends on 11) The method of claim 11, wherein: the first request includes an identifier of the V2X UE, and the first response does not include the identifier of the V2X UE. ### Claim 13 (depends on 11) The method of claim 11, wherein the first request includes the identifier of the first geographic area and the identifier of the first V2X service, indicating registration or de-registration to receive ITS messages associated with the first V2X service in the first geographic area. ### Claim 14 (depends on 11) The method of claim 11, wherein: the first request is a first registration request; and the method further comprises sending, to the VAE client, one or more ITS messages associated with at least one of the first V2X service and the first geographic area, as indicated in the first registration request. ### Claim 15 (depends on 11) The method of claim 11, further comprising: receiving, from the VAE client, a second request for registration or de-registration to receive ITS messages associated with at least one of the following: a second V2X service, when an identifier of the second V2X service is included in the second request; and a second geographic area, when an identifier of the second geographic area is included in the second request; performing a registration or a de-registration of the VAE client to receive ITS messages according to the second request; and sending, to the VAE client, a second response comprising an acknowledgement of the second request for registration or de-registration. ### Claim 16 (depends on 15) The method of claim 15, wherein: the first request is for registration to receive ITS messages; the second request is for de-registration to receive ITS messages; and identifiers of one or more of the following are included in both the first and second requests: a same V2X service and a same geographic area. ### Claim 17 (depends on 16) The method of claim 16, wherein: the first request is for registration to receive ITS messages; the second request is for registration to receive ITS messages; and the second request includes at least one of the following: an identifier of a V2X service that is not included in the first request; and an identifier of a geographic area that is not included in the first request. ### Claim 18 (depends on 11) A V2X application enabler (VAE) server comprising: communication interface circuitry configured to communicate with a VAE client of a V2X User Equipment (UE); and processing circuitry operably coupled with the communication interface circuitry, whereby the processing circuitry and the communication interface circuitry are configured to perform operations corresponding to the method of claim 11. ### Claim 19 (depends on 18) The VAE server of claim 18, wherein: the first request includes an identifier of the V2X UE, and the first response does not include the identifier of the V2X UE. ### Claim 20 (depends on 18) The VAE server of claim 18, wherein: the first request is a first registration request; and the processing circuitry and the communication interface circuitry are further configured to send, to the VAE client, one or more ITS messages associated with at least one of the first V2X service and the first geographic area, as indicated in the first registration request.