WO2022223632A1 - Dispositif et procédé de communication par commutation de paquets d'un participant au traffic - Google Patents

Dispositif et procédé de communication par commutation de paquets d'un participant au traffic Download PDF

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Publication number
WO2022223632A1
WO2022223632A1 PCT/EP2022/060440 EP2022060440W WO2022223632A1 WO 2022223632 A1 WO2022223632 A1 WO 2022223632A1 EP 2022060440 W EP2022060440 W EP 2022060440W WO 2022223632 A1 WO2022223632 A1 WO 2022223632A1
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WO
WIPO (PCT)
Prior art keywords
packet
message
channel
priority
channels
Prior art date
Application number
PCT/EP2022/060440
Other languages
German (de)
English (en)
Inventor
Florian Alexander Schiegg
Marie-Theres Suer
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to CN202280029921.3A priority Critical patent/CN117223306A/zh
Publication of WO2022223632A1 publication Critical patent/WO2022223632A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal

Definitions

  • the invention relates to a device and a method for packet-switched communication of a road user.
  • Multi-connectivity represents a concept for packet-switched communication in which various channels available to the road user for communication are used.
  • the device and the method according to the independent claims represent a scheduling for messages that assigns a channel or multiple channels for transmission to a message.
  • the method for packet-switched communication of a road user provides that, in particular with at least one sensor and/or at least one communication device of the road user, information about an environment of the road user is obtained, depending on the information, in particular on a content of the information, by a Model a situation in the environment of the road user is determined, depending on the situation at least one channel for packet-switched transmission of at least one data packet of a message to be transmitted packet-switched is assigned.
  • resources of different channels for the communication of different messages are allocated individually for different transmission stations. This improves the Communication performance, eg through a better packet reception rate, and/or the performance of the communication-based applications significantly.
  • the model can be a local environmental model or a global environmental model that is preferably enriched with V2X information (V2X-extended global environmental model).
  • the model is based on sensor data from the road user's own and/or external sensors, which are provided, for example, by means of V2X communication.
  • the model can include sensor pipe data and/or evaluated, in particular merged, sensor data, for example object lists, from in particular a number of sensors.
  • the model can be part of the facility layer.
  • the situation in the area surrounding the road user can be a current, future or predicted or past situation or a state in the area surrounding the road user.
  • the situation can be a traffic situation, for example with regard to other road users.
  • the situation can be a situation or a state of one or more communication connections, in particular a V2X connection, of the road user.
  • the quality of the channel is preferably estimated as a function of a load and/or a packet round trip time and/or a packet delivery rate for the channel and/or a historical course of the quality of the channel and/or a position, in particular of another road user.
  • the quality of the respective channel changes constantly in the traffic flow. The assignment depends on this Estimation of quality is particularly useful for assigning channels to messages to be sent to other road users.
  • the priority of the message is preferably determined or estimated by a service that is independent of packet-switched communication hardware. This simplifies integration into a conventional protocol stack.
  • CLM Collaborative Localization Message
  • DENM Decentralized Environmental Notification Message
  • CAM Cooperative Awareness Message
  • CPM Collective Perception Message
  • the priority is determined as a function of a specified or predetermined priority that is assigned to an application that sends the message and/or that the priority is determined as a function of a specified or predetermined priority that is assigned to a content of the message is assigned and/or that the priority is determined dependent on a given or predetermined priority assigned to the situation.
  • V2X communication different situations or applications require different levels of reliability or priority in transmission. Irrespective of the underlying protocol stack, this prioritization achieves an assignment of channels to messages that is particularly suitable for V2X communication.
  • the priority is preferably determined as a function of a particularly weighted sum or a particularly weighted product of the specified or predetermined priorities.
  • At least one data packet of the message is preferably transmitted via the channel assigned to the message or the channels assigned to it. This scheduling is preferably performed for a message as a whole. The individual data packets are transmitted on the channel assigned to the message.
  • the device for packet-switched communication of the road user comprises an interface which is designed to receive information about the environment of the road user, in particular from at least one device, in particular at least one sensor and/or at least one communication device of the road user, a model which is designed to determine a situation in the vicinity of the road user depending on the information, and a scheduler which is designed to allocate at least one channel for the packet-switched transmission of at least one data packet of a message to be transmitted packet-switched, depending on the situation.
  • FIG. 1 shows a schematic representation of parts of a vehicle
  • a vehicle is described as an example of a road user.
  • the traffic user can also be a unit of traffic infrastructure or a unit carried by a person participating in traffic. In this case, the unit is designed as described for the vehicle.
  • a vehicle 100 is shown schematically in FIG. A structure of the vehicle 100 is described below. In the example, vehicle 100 is designed to communicate with another vehicle 102 . A schematic structure of a part of the vehicle 100 and the other vehicle 102 will be described below based on the vehicle 100 .
  • the vehicle 100 includes a device 104 for packet-switched communication.
  • Device 104 includes an interface 106 that is designed to acquire information about surroundings of vehicle 100 in particular from at least one sensor 108 and/or at least one communication device of vehicle 100 .
  • the at least one sensor 108 can be a radar sensor, a LiDAR sensor or a camera. Several of these sensors can also be used.
  • the communication device can be used to receive information about the surroundings of vehicle 100 .
  • the information about the surroundings of the vehicle 100 can also be provided via another information interface.
  • the device 104 includes a model 110 which is designed to determine a situation in the vicinity of the vehicle 100 depending on the information.
  • the device includes a scheduler 112 which is designed to allocate at least one channel 114 for the packet-switched transmission of at least one data packet of a message to be transmitted in a packet-switched manner, depending on the situation.
  • Message in this context means a message for vehicle-to-vehicle communication, or for vehicle-to-infrastructure communication, or for vehicle-to-person communication, or for vehicle-to-network communication.
  • the message is a V2X message.
  • V2X communication can also include V2I communication, i.e. communication with a traffic infrastructure. This means that the message is sent from the vehicle 100 either to another vehicle or to an element of the transport infrastructure.
  • the message can also be sent to more than one vehicle, to more than one person and/or to more than one element of the transport infrastructure.
  • the message can also be sent as a broadcast.
  • the medium for the at least one channel 114 is air. Communication can take place according to a V2X standard, e.g. via WLAN IEEE 802.11p, 802.11bd, 3GPP C-V2X or 5G NR V2X.
  • the device 104 or the vehicle 100 can include a further sensor 116 which is designed to determine a position of the vehicle 100 .
  • the model 110 can be designed, the situation depending on the position of the vehicle 100 to determine.
  • the sensor 116 can be an integrated acceleration sensor, angular rate sensor, speed sensor or sensor for signals of a global satellite navigation system. Several of these sensors can be provided.
  • the device 104 includes an application 118 include.
  • the application 118 is designed to generate a message depending on the situation, which is to be transmitted from the vehicle 100 to the other vehicle 102 or other road users from the traffic infrastructure.
  • the device 104 may include a service configured to determine or estimate a priority for the message.
  • the priority comprises at least one parameter.
  • the parameter is defined, for example, as a function of a maximum tolerated latency or a minimum tolerated transmission reliability.
  • the device 104 includes a communication device 120.
  • the communication device 120 is designed to send a message on the at least one channel 114 assigned to the message by the scheduler 112. Messages that the communication device 120 receives or sends can themselves include information about the environment of the vehicle 100 and/or be input variables of the model 110 .
  • the communication device 120 is designed to determine or estimate information about a quality of the at least one channel 114 .
  • the scheduler 112 is designed to receive the situation from the model 110 and the information about a quality of the at least one channel 114 .
  • the scheduler 112 is designed to allocate messages to at least one channel 114 depending on the situation and the information.
  • a protocol stack is provided in the example, which is structured as follows, starting with an application layer and ending with a bit transmission layer:
  • V2X messages Vehicle communication layer (V2X messages)
  • Transport layer (TCP/UDP) Network/Packet Layer (I Pv6)
  • Transport layer and network/packet layer may also include Basic Transport Protocol, BTP, and GeoNetworking Protocol.
  • the application 118 is arranged in the application layer.
  • V2X Messages designates a protocol for prioritizing the messages that are to be generated by the application 118 and sent from the vehicle 100 to the other vehicle 102 or to other elements of a traffic infrastructure.
  • the service is arranged in the vehicle communication layer and is independent of the hardware for packet-switched communication.
  • the application layer and the vehicle communication layer are used in the example for generating the messages and estimating or determining the priorities assigned to the respective messages.
  • the bit transmission layer and the data link layer are used in the example for the provision, access control and monitoring of channels for communication.
  • the other layers are used for packet-switched transmission and routing.
  • FIG. 112 A functional principle of the scheduler 112 is shown schematically in FIG.
  • the scheduler 112 receives on the one hand a priority 202 of a message and on the other hand an estimate 204 for the quality of at least one channel 114. Depending on the priority 202 and the estimate 204, the scheduler 112 determines an allocation decision 206 for the message.
  • assignment decision 206 is determined in a method for communication in the vehicle, which is described below with reference to FIG.
  • the scheduler 112 receives on the one hand the priority 202 of the message and on the other hand the estimate 204 for the quality of the at least one channel 114.
  • a step 302 is carried out if the priority is higher than the priority of the other message. Otherwise, in a step 304, an allocation decision is made.
  • the message is assigned a channel from a plurality of channels available for communication, which channel is either randomly selected from the plurality of channels or has a lower quality than one or more other channels from the plurality of channels.
  • At least one data packet of the message is transmitted via the channel allocated to it.
  • the message is completely transmitted via this channel.
  • step 302 depending on the situation, it is checked whether high reliability of the data transmission is required or not. If high reliability is required, a step 306 is executed. Otherwise, a step 308 is executed.
  • step 306 at least two channels are selected from the plurality of channels available for communication which have a higher quality than one or more other channels from the plurality of channels available for communication.
  • At least one data packet of the message is transmitted via the channels allocated to it.
  • the message is assigned to two channels and is essentially transmitted in parallel over two channels.
  • step 308 one channel is rolled out from the plurality of channels available for communication, the one opposite one or several other of the channels from the plurality of channels available for communication has greater quality.
  • At least one data packet of the message is transmitted via the channel assigned to it.
  • the message is completely transmitted via this channel.
  • a comparison with a respective threshold value can also be provided.
  • the quality of the respective channel is determined, for example, as a function of a load, a packet round-trip time and/or a packet delivery rate for the respective channel.
  • the quality of the respective channel is determined, for example, as a function of a historical profile of the quality of the respective channel.
  • the quality of the respective channel is estimated, for example, depending on a position, in particular of another vehicle.
  • the priority of the message is determined or estimated by the service in the example. This is independent of the hardware for packet-switched communication.
  • the priority for messages from a specific application is determined, for example, depending on a maximum tolerable or a minimum tolerable latency or transmission reliability that is assigned to this application.
  • a V2X service type is assigned a priority depending on whether it is a Collaborative Localization Message, CLM, a Decentralized Environmental Notification Message, DENM, a Cooperative Awareness Message, CAM, or a Collective Perception Message, CPM.
  • CLM Collaborative Localization Message
  • DENM Decentralized Environmental Notification Message
  • CAM Cooperative Awareness Message
  • CPM Collective Perception Message
  • CPM is used to exchange information about vulnerable road users among road users.
  • the method can also be used for Basic Safety Messages, BSMs.
  • DENM is used to exchange information among road users about the positions of dead animals on a road.
  • CLM is used in the example to provide road users with information about the positions of a Replace satellite navigation system.
  • a given priority is assigned to an application that sends the message.
  • a predetermined priority is assigned to a content of the message.
  • the situation is assigned a predetermined priority.
  • p(CLM) is smaller under the open sky than when the road user is in a street canyon.
  • the priority is determined as a function of one of these specified priorities, a plurality of these specified priorities, or the specified priorities. For example, a particularly weighted sum or a particularly weighted product of the specified priorities used is determined.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Computing Systems (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Traffic Control Systems (AREA)

Abstract

L'invention concerne un dispositif et un procédé de communication par commutation de paquets d'un participant au trafic (100). Des informations sur l'environnement du participant au trafic (100) sont obtenues, en particulier au moyen d'au moins un capteur (108, 116) et/ou d'un dispositif de communication (120) du participant au trafic (100), une situation dans l'environnement du participant au trafic (100) étant déterminée sur la base des informations à l'aide d'un modèle (110) et, sur la base de la situation, un message à transmettre par commutation de paquets étant attribué à au moins un canal (114) pour une transmission par commutation de paquets d'au moins un paquet de données.
PCT/EP2022/060440 2021-04-21 2022-04-20 Dispositif et procédé de communication par commutation de paquets d'un participant au traffic WO2022223632A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202280029921.3A CN117223306A (zh) 2021-04-21 2022-04-20 用于交通参与者的包交换通信的设备和方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021203975.8A DE102021203975A1 (de) 2021-04-21 2021-04-21 Vorrichtung und Verfahren zur paketvermittelten Kommunikation eines Verkehrsteilnehmers
DE102021203975.8 2021-04-21

Publications (1)

Publication Number Publication Date
WO2022223632A1 true WO2022223632A1 (fr) 2022-10-27

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Application Number Title Priority Date Filing Date
PCT/EP2022/060440 WO2022223632A1 (fr) 2021-04-21 2022-04-20 Dispositif et procédé de communication par commutation de paquets d'un participant au traffic

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CN (1) CN117223306A (fr)
DE (1) DE102021203975A1 (fr)
WO (1) WO2022223632A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3273634A1 (fr) * 2016-07-18 2018-01-24 Panasonic Intellectual Property Corporation of America Support amélioré de la qualité de service pour des transmissions de type v2x
EP3641470A1 (fr) * 2018-08-13 2020-04-22 LG Electronics Inc. -1- Procédé et dispositif de mise en correspondance de tc et pppp dans un système de communication sans fil
WO2021002723A1 (fr) * 2019-07-04 2021-01-07 엘지전자 주식회사 Procédé de fonctionnement d'équipement d'utilisateur relatif à une drx de liaison latérale dans un système de communication sans fil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3273634A1 (fr) * 2016-07-18 2018-01-24 Panasonic Intellectual Property Corporation of America Support amélioré de la qualité de service pour des transmissions de type v2x
EP3641470A1 (fr) * 2018-08-13 2020-04-22 LG Electronics Inc. -1- Procédé et dispositif de mise en correspondance de tc et pppp dans un système de communication sans fil
WO2021002723A1 (fr) * 2019-07-04 2021-01-07 엘지전자 주식회사 Procédé de fonctionnement d'équipement d'utilisateur relatif à une drx de liaison latérale dans un système de communication sans fil

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CN117223306A (zh) 2023-12-12
DE102021203975A1 (de) 2022-10-27

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