WO2017071137A1 - Procédé de transmission d'informations et unité de bord de route - Google Patents

Procédé de transmission d'informations et unité de bord de route Download PDF

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Publication number
WO2017071137A1
WO2017071137A1 PCT/CN2016/072870 CN2016072870W WO2017071137A1 WO 2017071137 A1 WO2017071137 A1 WO 2017071137A1 CN 2016072870 W CN2016072870 W CN 2016072870W WO 2017071137 A1 WO2017071137 A1 WO 2017071137A1
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WO
WIPO (PCT)
Prior art keywords
rsu
terminal
mapping information
information
discovery
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PCT/CN2016/072870
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English (en)
Chinese (zh)
Inventor
雷艺学
郑倩
张晨璐
张云飞
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宇龙计算机通信科技(深圳)有限公司
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Publication of WO2017071137A1 publication Critical patent/WO2017071137A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/246—Connectivity information discovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method for information transmission and a roadside unit.
  • V2X Vehicle and X
  • V2X Vehicle and X
  • V2V Vehicle to Vehicle
  • V2I Vehicle and Infrastructure
  • V2N Vehicle and Nomadic Devices
  • V2X Voice over IP
  • V2X Voice over IP
  • DSRC Dedicated Short Range Communications
  • D2D device-to-device
  • a technical problem to be solved by embodiments of the present invention is to provide a method and apparatus for information transmission. To solve the problem of large transmission delay of V2X service.
  • a first aspect of the embodiments of the present invention provides a method for information transmission, including:
  • the roadside unit RSU receives the D2D discovery mapping information sent by the terminal, where the D2D discovery mapping information includes a mapping relationship between the proximity service application identifier cached by the terminal and the adjacent service application code, and The validity period of the mapping relationship;
  • the RSU configures part or all of the mapping information for the terminal that belongs to the RSU, so that the terminal belonging to the RSU performs the transmission of the D2D discovery related message according to the configured mapping information.
  • the method further includes:
  • the RSU and the proximity service function entity verify the authenticity and/or timeliness of the newly added content in the mapping information.
  • the preset condition includes at least one of the following:
  • the distance from the RSU is less than or equal to a preset threshold.
  • the mapping information is transmitted through the user plane data channel, and when the RSU configures part or all of the mapping information for the terminal belonging to the RSU, according to the road segment and/or the location range information where the terminal is located. And configuring, for the terminal, mapping information that matches the section and/or location range information of the location.
  • the method further includes:
  • the RSU joins the RSU packet, and the mapping information of the RSU cache located in the same RSU packet is the same;
  • the RSU configures part or all of the mapping information for the terminal that belongs to the RSU, including:
  • the RSU to which the terminal that is in the coverage of the RSU belongs is located in the same RSU group as the RSU, the RSU does not need to broadcast the cached mapping information to the terminal;
  • the RSU performs mapping information matching with the RSU to which the terminal belongs before the handover. If the matching is successful, the RSU indicates that the terminal continues to use the original mapping information, and if the matching is unsuccessful, the RSU broadcasts its cached mapping information to the terminal.
  • a second aspect of the embodiments of the present invention provides a roadside unit, including:
  • a receiving module configured to receive D2D discovery mapping information sent by the terminal, where the D2D discovery mapping information includes a mapping relationship between the proximity service application identifier of the terminal cache and the adjacent service application code, and an expiration date of the mapping relationship;
  • a forwarding module configured to forward the mapping information to other roadside units that meet preset conditions
  • a configuration module configured to configure part or all of the mapping information for the terminal that belongs to the RSU, so that the terminal that belongs to the RSU performs the transmission of the D2D discovery related message according to the configured mapping information.
  • the roadside unit further includes:
  • a verification module configured to verify authenticity and/or timeliness of the newly added content in the mapping information with the proximity service function entity.
  • the preset condition includes at least one of the following:
  • the distance from the RSU is less than or equal to a preset threshold.
  • the mapping information is transmitted through the user plane data channel, and the configuration module is specifically configured to configure, according to the road segment and/or the location range information of the terminal, the terminal segment and/or the location range information. Matching mapping information.
  • the roadside unit further includes:
  • the module is added to join the RSU packet, and the mapping information of the RSU cache located in the same RSU packet is the same;
  • the configuration module is specifically configured to:
  • the RSU to which the terminal that enters the coverage of the RSU belongs is located in the same RSU packet as the RSU, it is not necessary to broadcast the cached mapping information to the terminal;
  • the configuration module performs mapping information with the RSU to which the terminal belongs before the handover. If the matching is successful, the configuration module instructs the terminal to continue to use the original mapping information. If the matching is unsuccessful, the configuration module broadcasts the cached mapping information to the terminal.
  • the D2D discovery mapping information sent by the terminal is received by the roadside unit, and the forwarding and spreading of the mapping information and the configuration of other terminals are completed by the RSU, thereby realizing the cooperation between the terminal and the RSU to complete mapping information between the vehicle networking terminals.
  • Maintenance, the entire process does not need to interact with the network side of the core network, thereby reducing the delay of the D2D discovery technology for the V2X service, especially for the transmission of the V2X emergency service, fully satisfying the transmission delay requirement of the V2X service, and providing the user with Higher speed and more stable Fast V2X service transmission, which improves traffic safety.
  • FIG. 1 is a schematic flow chart of a first embodiment of a method for transmitting information according to the present invention
  • FIG. 2 is a schematic flow chart of a second embodiment of a method for transmitting information according to the present invention.
  • FIG. 3 is a schematic flow chart of a third embodiment of a method for transmitting information according to the present invention.
  • Figure 4 is a schematic view showing the composition of the first embodiment of the roadside unit of the present invention.
  • Figure 5 is a schematic view showing the composition of a second embodiment of the roadside unit of the present invention.
  • Figure 6 is a schematic view showing the composition of a third embodiment of the roadside unit of the present invention.
  • D2D Device-to-Device
  • a transmission protocol using D2D discovery technology in which V2X application layer messages can be used as D2D discovery messages.
  • the payload is sent by broadcast through the Physical Layer Sidelink Discovery Channel (PSDCH); the other is based on the transmission protocol of the D2D communication technology, in which the V2X application layer message can be used as the payload.
  • the D2D communication data is transmitted on a physical layer side link control channel (PSCCH) and a physical layer side link shared channel (PSSCH).
  • PSCCH physical layer side link control channel
  • PSSCH physical layer side link shared channel
  • the embodiments of the present invention mainly consider a transmission protocol based on the D2D discovery technology for transmitting V2X services, especially V2V and/or V2I services.
  • a base station scheduling mode There are two resource allocation modes in the D2D discovery technology, namely, a base station scheduling mode and a resource pool mode, where the base station scheduling mode is funded by the base station according to the resources that the base station can actively schedule for its coverage.
  • Source scheduling in the resource pool mode, a resource pool is composed of some resources, and different terminals use resources in the resource pool through resource requests.
  • the resource pool manager attaches an occupied identifier to the used resources.
  • the resource is recycled to the resource pool and the occupied ID is removed.
  • the entity that controls the V2X service transmission on the network side in the embodiment of the present invention may be implemented based on a D2D functional entity, that is, a Proximity Based Services Function (ProSe Function). Used as an entity for vehicle network control.
  • This method is mainly suitable for V2X service transmission using D2D technology.
  • the V2X related control can be deployed independently of the D2D functional entity or integrated, but from the perspective of protocol simplification and reuse, the PC3 interface between the terminal and the ProSe Function can be reused.
  • the functional entity or device that controls the V2X service transmission can also be set independently, which is not limited in the embodiment of the present invention.
  • the Road Side Unit can be implemented by a stationary terminal or by a small base station.
  • the RSU is mainly implemented in a base station manner, and may also be implemented by using a terminal type-based micro base station (T-SC) capable of providing aggregation access for an in-vehicle terminal.
  • V2X service transmission including V2V and V2I, can be transmitted through the PC5 interface based on the D2D protocol.
  • the terminal described in the present invention may be a mobile terminal held by a user supporting the D2D protocol, or may be an in-vehicle terminal integrated in the vehicle.
  • FIG. 1 is a schematic flowchart of a first embodiment of a method for transmitting information according to the present invention.
  • the method includes the following steps:
  • the roadside unit RSU receives the D2D discovery mapping information sent by the terminal.
  • the D2D discovery mapping information includes a mapping relationship between a ProSe Application ID and a ProSe Application Code cached by the terminal and an expiration date of the mapping relationship;
  • the terminal reporting mapping information is not limited to a radio resource control (Radio Resource Control, RRC for short) or a PC5 control plane protocol between the terminal and the RSU, and may use a protocol (Internet Protocol, which is interconnected between users' networks).
  • RRC Radio Resource Control
  • IP Internet Protocol
  • the RSU forwards the mapping information to other roadside units that meet preset conditions.
  • the preset condition includes at least one of the following:
  • the distance from the RSU is less than or equal to a preset threshold.
  • the RSU may forward the mapping information through the interface between the RSUs, and the mapping information may be quickly and timely spread by means of the wired backhaul link.
  • the RSU can perform targeted diffusion and propagation of the mapping information by predicting the mobility of the terminal. For example, when a vehicle enters the entrance of a section of a highway, this mechanism can be used to have such mapping information in the RSU of the section of the highway. Or some of the RSUs that are adjacent to the current RSU have these mapping information. Or the mapping information can be forwarded by considering both conditions. Thereby improving the purpose of mapping information forwarding.
  • the RSU configures part or all of the mapping information for the terminal that belongs to the RSU, so that the terminal that belongs to the RSU performs the transmission of the D2D discovery related message according to the configured mapping information.
  • the D2D discovery related message herein may include, but is not limited to, a message that the terminal interacts during D2D discovery, such as a D2D discovery message and a response message of the D2D discovery message.
  • mapping information may be transmitted through a user plane data channel, so that control signaling when mapping information configuration may be reduced.
  • the terminal when the RSU configures part or all of the content of the mapping information for the terminal that belongs to the RSU, the terminal may be configured with the road segment according to the road segment and/or the location range information where the terminal is located. / or mapping information that matches the location range information. For example, when the terminal enters a certain expressway, the RSU may only send the mapping information related to the segment of the highway to the terminal, or when the terminal enters a certain range of locations, the RSU may only involve the location range. The mapping information is sent to the terminal, thereby reducing the transmission amount of the mapping information, and improving the efficiency and purpose of the mapping information transmission and configuration. Of course, the RSU can also directly send all the mapping information of the cache to the terminal, which is not limited in the embodiment of the present invention.
  • the D2D discovery mapping information sent by the terminal is received by the roadside unit, and the forwarding and spreading of the mapping information and the configuration of other terminals are completed by the RSU, thereby realizing the cooperation between the terminal and the RSU to complete mapping information between the vehicle networking terminals.
  • Maintenance, the entire process does not need to interact with the network side of the core network, thereby reducing the delay of the D2D discovery technology for the V2X service, especially for the transmission of the V2X emergency service, fully satisfying the transmission delay requirement of the V2X service, and providing the user with Higher speed, more stable and faster V2X service transmission, thus improving traffic safety.
  • step S201 is the same as step S101, and steps S203-S204 are the same as steps S102-S103, and details are not described herein again.
  • step S201 is the same as step S101, and steps S203-S204 are the same as steps S102-S103, and details are not described herein again.
  • the RSU and the ProSe Function perform verification on authenticity and/or timeliness of the newly added content in the mapping information.
  • the main purpose of the verification is to ensure the validity of the mapping information of the RSU cache, prevent the spoofing information, and the synchronization with the network side device.
  • the RSU and the ProSe Function can be configured with a high-speed and large-capacity wired network connection, which can realize high-speed and real-time interaction. Thereby reducing the delay caused by the verification.
  • steps S301-S304 are the same as steps S201-S204 in FIG. 2, and details are not described herein again.
  • the method further includes the following steps:
  • RSU joins an RSU group (RSU group).
  • mapping information of the RSU caches located in the same RSU packet is the same.
  • the RSU to which the terminal that enters the coverage of the RSU belongs is located in the same RSU packet as the RSU, the RSU does not need to broadcast the cached mapping information to the terminal.
  • the RSU to which the terminal that enters the coverage of the RSU belongs is not located in the same RSU packet, after the terminal switches to the RSU, the RSU maps with the RSU to which the terminal belongs before the handover. If the matching is successful, the RSU indicates that the terminal continues to use the original mapping information. If the matching is unsuccessful, the RSU broadcasts its cached mapping information to the terminal.
  • an RSU packet with completely synchronized mapping information may be constructed for at least two RSUs, and mapping information between RSUs within the same packet is completely synchronized, so that when the car network terminal is in one When a location change or even a handover occurs between RSUs in a packet, there is no need to update the mapping message. Similarly, the RSU does not need to broadcast mapping information to the terminal, thereby saving energy consumption and signaling overhead.
  • the terminal For an RSU that does not belong to the same RSU group, the terminal follows the vehicle while driving, and performs switching between RSUs. After the handover is completed, the base station may decide whether it is necessary to send mapping information to the terminal. For example, the process can be connected by a radio resource control protocol between the switched RSU and the terminal. Triggered by an RRC Connection Reconfiguration message.
  • mapping information matching may be performed before the transmission.
  • the new RSU indicates to the terminal that the original broadcast information can continue to be used.
  • mapping information is different or cannot be compared, the mapping information is broadcast to the terminal by the new RSU.
  • the base station may perform unified grouping or perform adjustment of the intra-group RSU.
  • the terminal includes:
  • the receiving module 100 is configured to receive the D2D discovery mapping information sent by the terminal, where the D2D discovery mapping information includes a mapping relationship between the proximity service application identifier and the adjacent service application code cached by the terminal, and an expiration date of the mapping relationship;
  • the forwarding module 200 is configured to forward the mapping information to other roadside units that meet preset conditions;
  • the configuration module 300 is configured to configure part or all of the mapping information for the terminal that belongs to the RSU, so that the terminal belonging to the RSU performs the transmission of the D2D discovery related message according to the configured mapping information.
  • the preset condition includes at least one of the following:
  • the distance from the RSU is less than or equal to a preset threshold.
  • mapping information is transmitted through the user plane data channel, and the configuration module 300 is specifically configured to configure, according to the road segment and/or the location range information of the terminal, the terminal segment and/or the located road segment and/or Mapping information that matches the location range information.
  • the roadside unit according to the embodiment of the present invention further includes:
  • the verification module 400 is configured to verify the authenticity and/or timeliness of the newly added content in the mapping information with the proximity service function entity.
  • FIG. 6 it is a schematic diagram of a composition of a third embodiment of a roadside unit according to the present invention.
  • the roadside unit according to the embodiment of the present invention further includes:
  • the joining module 500 is configured to join the RSU packet and is located in the RSU cache in the same RSU packet.
  • the mapping information is the same;
  • the configuration module 300 is specifically configured to:
  • the RSU to which the terminal that enters the coverage of the RSU belongs is located in the same RSU packet as the RSU, it is not necessary to broadcast the cached mapping information to the terminal;
  • the configuration module 300 maps with the RSU to which the terminal belongs before the handover. If the matching is successful, the configuration module 300 instructs the terminal to continue to use the original mapping information. If the matching is unsuccessful, the configuration module 300 broadcasts the cached mapping information to the terminal.
  • the receiving module 100, the forwarding module 200, the configuration module 300, the verification module 400, and the joining module 500 may exist independently or may be integrated.
  • the receiving module 100, the forwarding module 200, the configuration module 300, the verification module 400, or the joining module 500 may
  • the form of the hardware is separately set independently of the processor of the roadside unit, and the setting form may be in the form of a microprocessor; or may be embedded in the processor of the roadside unit in hardware form, or may be stored in software in the form.
  • the processor of the roadside unit is instructed to perform operations corresponding to the above receiving module 100, the forwarding module 200, the configuration module 300, the verification module 400, and the adding module 500.
  • the configuration module 300 may be a processor of the roadside unit, and the receiving module 100, the forwarding module 200, the verification module 400, and The function of adding module 500 may be embedded in the processor, or may be set separately from the processor, or may be stored in the memory in the form of software, and the function is called by the processor.
  • the embodiment of the invention does not impose any limitation.
  • the above processor may be a central processing unit (CPU), a microprocessor, a single chip microcomputer, or the like.
  • the present invention has the following advantages:
  • the D2D discovery mapping information sent by the terminal is received by the roadside unit, and the forwarding and spreading of the mapping information and the configuration of other terminals are completed by the RSU, thereby realizing the cooperation between the terminal and the RSU to complete mapping information between the vehicle networking terminals.
  • Maintenance the entire process does not need to interact with the network side of the core network, Therefore, the delay of the D2D discovery technology for the V2X service is reduced, especially for the transmission of the V2X emergency service, which fully satisfies the requirement of the transmission delay of the V2X service, and can provide the user with higher speed, more stable and faster V2X service transmission, thereby improving the Traffic safety.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de transmission d'informations, comprenant les étapes suivantes : une unité de bord de route (RSU) reçoit des informations de mappage de découverte D2D envoyées par un terminal, les informations de mappage de découverte D2D comprenant une relation de mappage entre un identifiant d'application de service de proximité et un code d'application de service de proximité mis en mémoire cache par le terminal ainsi qu'une période de validité de la relation de mappage ; la RSU fait suivre les informations de mappage vers d'autres unités de bord de route qui satisfont à une condition prédéfinie ; et la RSU configure tout ou partie du contenu des informations de mappage pour le terminal attribué à la RSU, de sorte que le terminal attribué à la RSU transmette un message associé à une découverte D2D en fonction des informations de mappage configurées. L'invention concerne en outre une unité de bord de route. Avec la présente invention, le retard d'une transmission de service V2X peut être réduit, et les exigences de transmission d'un service V2X émergent peuvent être satisfaites.
PCT/CN2016/072870 2015-10-30 2016-01-29 Procédé de transmission d'informations et unité de bord de route WO2017071137A1 (fr)

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CN201510734057.9A CN105282688B (zh) 2015-10-30 2015-10-30 一种信息传输的方法及路侧单元

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EP2919525A1 (fr) * 2014-03-11 2015-09-16 Innovative Sonic Corporation Procédé et appareil pour l'allocation de ressources communes de découverte dans un système de communication sans fil
CN105282688A (zh) * 2015-10-30 2016-01-27 东莞酷派软件技术有限公司 一种信息传输的方法及路侧单元

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WO2019015867A1 (fr) * 2017-07-18 2019-01-24 Robert Bosch Gmbh Procédé pour faire fonctionner une unité réseau côté route et unité réseau côté route
CN110915289A (zh) * 2017-07-18 2020-03-24 罗伯特·博世有限公司 用于运行道路侧网络单元的方法和道路侧网络单元
US11277722B2 (en) 2017-07-18 2022-03-15 Robert Bosch Gmbh Method for operating a roadside network unit and roadside network unit
CN113366814A (zh) * 2019-03-18 2021-09-07 索尼集团公司 用于对边缘计算系统中的资源分配进行管理的管理
CN113366814B (zh) * 2019-03-18 2024-04-26 索尼集团公司 对边缘计算系统中的资源分配进行管理的方法
CN112800156A (zh) * 2021-01-06 2021-05-14 迪爱斯信息技术股份有限公司 一种基于路侧单元地图分幅方法、系统、设备和存储介质
CN112800156B (zh) * 2021-01-06 2023-10-13 迪爱斯信息技术股份有限公司 一种基于路侧单元地图分幅方法、系统、设备和存储介质
CN114374624A (zh) * 2021-12-17 2022-04-19 信通院车联网创新中心(成都)有限公司 V2x路侧终端功能性信息下发功能仿真测试方法

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