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EP-4742702-A1 - SYSTEMS AND METHODS FOR VEHICLE-TO-EVERYTHING MESSAGE FORWARDING

EP4742702A1EP 4742702 A1EP4742702 A1EP 4742702A1EP-4742702-A1

Abstract

Systems and methods are herein provided for V2X message forwarding. In one example, a method comprises a network receiving message data from one or more units via a long range interface; identifying, based on determined communication capabilities, a first subset of units capable of both long short range communication and a second subset of units capable of only long range communication; forwarding first message data from the second subset of units to one or more short range units via one or more first elected units of the first subset of units based on location; and forwarding second message data received from one or more second elected units of the first subset of units to the second subset of units, wherein the second message data comprises data of the one or more short range units received by the second elected units of the first subset of units based on location.

Inventors

  • Jain, Rishu
  • RADHAKRISHNAN, VIJAY

Assignees

  • Harman Becker Automotive Systems, Inc.

Dates

Publication Date
20260513
Application Date
20251105

Claims (10)

  1. A system, comprising: a network comprising a Vehicle-to-Everything (V2X) application; one or more short range capable units (SR units) each comprising a first V2X communication system configured for short range communication; one or more long and short range capable units (LSR units) each comprising a second V2X communication system configured for both short range communication and long range communication; and one or more long range capable units (LR units) each comprising a third V2X communication system configured for long range communication, wherein the network is configured to transmit V2X messages to and receive V2X messages from the one or more LSR units and the LR units via long range interfaces and the SR units are configured to transmit V2X messages to and receive V2X messages from the LSR units via a short range interface, wherein the one or more LSR units and the network are together configured to forward message data from the one or more SR units to the one or more LR units and from the one or more LR units to the one or more SR units based on identified locations of the one or more SR units, elected collaborator units of the one or more LSR units, and the one or more LR units.
  2. The system of claim 1, wherein, to forward message data from the one or more SR units to the one or more LR units, the V2X application of the network is configured to: elect a collaborator unit of the one or more LSR units for each of a plurality of regions; send a vehicle information request to each collaborator unit; receive a vehicle information package from each collaborator unit comprising message data of a subset of the one or more SR units located in the same region as the collaborator unit; and transmit each vehicle information package to the one or more LR units.
  3. The system of claim 2, wherein each of the plurality of regions is a Geohash.
  4. The system of any preceding claim, wherein, to forward message data from the one or more SR units to the one or more LR units, the second V2X communication system of an elected collaborator unit of the one or more LSR units for a given region of a plurality of regions is configured to: receive a vehicle information request from the V2X application of the network; receive message data from one or more of the one or more SR units and one or more of the one or more LSR units within a range of the short range interface of the elected collaborator via short range communication; generate a vehicle information package comprising message data of a first subset of the one or more of the one or more SR units, wherein the subset of the one or more of the one or more SR units are located in the given region, by filtering out data of the one or more of the one or more LSR units and of a second subset of the one or more of the one or more SR units not located in the given region; and transmit the vehicle information package to the network via long range communication.
  5. The system of claim 4, wherein the second V2X communication system of the elected collaborator unit is further configured to determine the given region of each of the one or more SR units from which message data is received by extrapolating a current location based on a timestamped location, a direction of travel, and a speed of travel included in a corresponding message therefrom.
  6. The system of claim 5, wherein the second V2X communication system of the elected collaborator unit is further configured to determine the current location of each of the one or more SR units for a single time instant and wherein identifying the region of each of the one or more SR units is based on the current location for the single time instant.
  7. The system of any preceding claim, wherein, to forward message data from the one or more LR units to the one or more SR units, the V2X application of the network is configured to: receive message data from the one or more LR units and the one or more LSR units; elect a collaborator unit of the one or more LSR units for each of a plurality of regions; build a message package for each of the plurality of regions comprising message data from one or more of the one or more LR units located in the corresponding region; and transmit each message package to the collaborator unit for the corresponding region.
  8. The system of any preceding claim, wherein, to forward message data from the one or more LR units to the one or more SR units, the second V2X communication system of an elected collaborator unit of the one or more LSR units for a given region of a plurality of regions is configured to: receive a message package from the V2X application of the network via long range communication; broadcast the message package to one or more of the one or more SR units and one or more of the one or more LSR units that are within a predefined range of the short range interface of the elected collaborator unit via short range communication.
  9. The system of any preceding claim, wherein each of the message data comprises at least a timestamped location, a direction of travel, and a speed of travel.
  10. The system of any preceding claim, wherein the one or more SR units, the one or more LSR units, and the one or more LR units comprise one or more of vehicles, infrastructure units, and mobile devices.

Description

CROSS REFERENCE TO RELATED APPLICATIONS The present application claims priority to Indian Non-provisional Application No. 202441086700, entitled "SYSTEMS AND METHODS FOR VEHICLE-TO-EVERYTHING MESSAGE FORWARDING", and filed on November 11, 2024. The entire contents of the above-listed application is hereby incorporated by reference for all purposes. FIELD The disclosure relates to vehicle communications, and in particular, to extending Vehicle-to-Everything (V2X) coverage by forwarding V2X messages between short-range capable vehicles and long-range capable vehicles. BACKGROUND Vehicle-to-everything (V2X) systems are cooperative systems in which vehicles exchange information with other vehicles. V2X is a technology that enables communication and data exchange between vehicles and their surroundings, including other vehicles, infrastructure, pedestrians, and even the cloud, facilitating enhanced road safety, traffic efficiency, and personalized mobility experience. The V2X umbrella encompasses several technologies based on the communication channel that is leveraged: Vehicle-to-Vehicle (V2V) - vehicles communicating with one another, Vehicle-to-Infrastructure (V2I) - vehicles communicating with a road side infrastructure like a traffic light, Vehicle-to-Pedestrian (V2P) - vehicles communicating with mobile phones of pedestrians, Vehicle-to-Network (V2N) - vehicles communicating with an edge mobile network like Multi-access Edge Computing (MEC), etc. Certain technologies under the V2X umbrella, such as Dedicated Short Range Communication or direct cellular V2X technologies like PC5 radio communications, are considered "short range" communication channels. Such short range communication channels may provide for direct communication over a short range interface. Other technologies under the V2X umbrella, such as V2N may allow vehicles and other units, like infrastructure units, to communicate (e.g., transmit and receive messages) via a cloud or other edge mobile network. Such technologies are considered "long range" communication channels. Some vehicles, infrastructure units, and other such entities may be equipped for only short range communication, some may be equipped for only long range communication, and some may be equipped for both short and long range communication. V2X communication may be used to enhance driver safety with communication between nearby vehicles and dissemination of information to vehicles about a driving environment including vehicle traffic, pedestrian traffic, and the like. Further, messages may be transmitted between various entities. However, vehicles, infrastructure units, and other entities that are equipped for only short range communication may not communicate with vehicles and infrastructure units that are equipped for only long range communication, thus leaving a gap in communication in the driving environment. Further, a method for interoperation between short range capable entities and long range capable entities includes simply forwarding all short range communication messages received by entities equipped for both short and long range communication to the cloud for processing. This however introduces transmission of duplicate packages as multiple entities will send the same received messages, thus overloading the processing demands and increasing data traffic for the various entities. SUMMARY In one or more embodiments, a system comprises a network configured for long range communication, one or more units configured for short range communication (SR units), one or more units configured for long range communication (LR units), and one or more units configured for both long and short range communication (LSR units). Methods are herein provided for message forwarding from the one or more LR units to the one or more SR units and from the one or more SR units to the one or more LR units. As an example, a method for Vehicle-to-Everything (V2X) communication of a network comprises: receiving one or more messages from one or more units via a long range interface; determining communication capabilities of each of the one or more units; identifying, based on the determined communication capabilities, a first subset of units capable of both long range communication via the long range interface and short range communication via a short range interface and a second subset of units capable of only long range communication via the long range interface; identifying a region in which each of the one or more units is located; electing a collaborator unit corresponding to each identified region, wherein the collaborator unit elected for each identified region is selected from the first subset of units; sending a vehicle information request to each collaborator unit; receiving, from each collaborator unit, a vehicle information package of a corresponding region, wherein the vehicle information package comprises message data from one or more units capable of only short range communication; an