WO2016206458A1 - 车联网中告警信息的处理方法及装置 - Google Patents

车联网中告警信息的处理方法及装置 Download PDF

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Publication number
WO2016206458A1
WO2016206458A1 PCT/CN2016/079776 CN2016079776W WO2016206458A1 WO 2016206458 A1 WO2016206458 A1 WO 2016206458A1 CN 2016079776 W CN2016079776 W CN 2016079776W WO 2016206458 A1 WO2016206458 A1 WO 2016206458A1
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WIPO (PCT)
Prior art keywords
obu
alarm information
rsu
alarm
information
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PCT/CN2016/079776
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English (en)
French (fr)
Inventor
许辉
马子江
卢忱
吕永
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中兴通讯股份有限公司
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Publication of WO2016206458A1 publication Critical patent/WO2016206458A1/zh

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    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication

Definitions

  • the present application relates to, but is not limited to, the field of communications, and relates to a method and a device for processing alarm information in a vehicle network.
  • the technologies to improve vehicle safety are mainly divided into passive safety technology and active safety technology.
  • Passive safety technology is used to protect people inside and outside the vehicle after accidents.
  • Active safety technology is used to prevent and reduce accidents in vehicles and avoid injuries.
  • Active safety technology is the focus of modern vehicle safety technology development. And trends.
  • the communication-based collision warning system realizes real-time information interaction between the vehicle, the vehicle and the roadside infrastructure by using advanced wireless communication technology and a new generation of information processing technology, and informs each other of the current state (including the position and speed of the vehicle). Acceleration, driving route) and learned road environment information, collaboratively aware of road hazard conditions, timely providing a variety of collision warning information to prevent road traffic safety accidents, and become a new way for countries to solve road traffic safety problems. .
  • FIG. 1 is a schematic diagram of transmitting traffic and scheduling information to a vehicle through a network information platform in the related art
  • FIG. 2 is a schematic structural diagram of a LTE (Long Term Evolution) vehicle network in the related art.
  • V2X Vehicle to Everything refers to providing vehicle information through sensors, vehicle terminals and electronic tags mounted on vehicles, and adopting various communication technologies to realize vehicles and vehicles (Vehicle) To Vehicle (V2V), Vehicle to Personal (V2P), Vehicle to Infrastructure (V2I), and information on the information network platform Extract, share, etc. Use, to effectively control the vehicle and provide comprehensive services.
  • the Road Side Unit can receive vehicle requests, ensure that the vehicle accesses the Internet (Internet), and has the function of a gateway; in addition, it also has the functions of data calculation, storage, and forwarding.
  • V2R Vehicle and Road Side Unit
  • V2I Vehicle and Road Side Unit
  • the RSU can quickly receive detected vehicles, traffic lights, and some road condition information, and process, reorder, and select the information before sending it to the vehicle.
  • connection with the RSU ensures that the vehicle can access the Internet reliably or in real time or download data stored by the RSU.
  • the embodiment of the invention provides a method and a device for processing alarm information in a vehicle network, so as to at least solve the related art, when an on-board unit (OBU) has an alarm service to be sent to other vehicles or pedestrians, other vehicles or pedestrians are For other reasons, the information about the above alarm service may not be received, which may result in unsuccessful transmission of information of the alarm service.
  • OBU on-board unit
  • a method for processing alarm information in a vehicle network including:
  • the roadside unit (RSU) sends alarm indication information to the onboard unit (OBU) in the vehicle network;
  • the RSU receives the alarm information sent by the OBU that detects the alarm information according to the alarm indication information;
  • the RSU sends the alert information to an OBU within its coverage.
  • the RSU receiving the alarm information that is sent by the OBU according to the alarm indication information includes: the RSU receiving the OBU that detects the alarm information by using a vehicle networking application server (V2X) AS) The alarm information sent by broadcast or unicast, wherein the OBU sends the alarm information to the V2X AS through an application layer interface.
  • V2X vehicle networking application server
  • the sending, by the RSU, the alarm information to the OBU in the coverage area includes: the RSU covers the coverage by using an evolved multicast broadcast multicast service (eMBMS) or a cell broadcast.
  • eMBMS evolved multicast broadcast multicast service
  • the internal OBU sends the alarm information.
  • the alarm information includes at least one of the following: a vehicle to vehicle (V2V) alarm information, and a vehicle to pedestrian (V2P) alarm information.
  • V2V vehicle to vehicle
  • V2P vehicle to pedestrian
  • the alarm indication information is used to indicate a condition that the OBU sends the alarm information to the RSU, where the condition includes at least one of the following: an OBU location, a status, a time period, and an alarm information category.
  • a method for processing alarm information in a vehicle network including:
  • the OBU in the Internet of Vehicles receives the alarm indication information sent by the RSU;
  • the OBU that detects the alarm information sends the alarm information to the RSU according to the alarm indication information;
  • the OBU receives the alarm information sent by the RSU to an OBU in its coverage area.
  • a device for processing alarm information in a vehicle network including:
  • the first sending module is configured to: send an alarm indication information to the OBU in the car network;
  • the first receiving module is configured to: when the OBU in the vehicle network detects the alarm information, the receiving station The alarm information that is sent by the OBU that detects the alarm information according to the alarm indication information;
  • the second sending module is configured to: send the alarm information to an OBU in the coverage area of the RSU.
  • the first receiving module is configured to: receive the alarm information that is sent by the OBU that detects the alarm information by using a car network application server (V2X AS) by broadcast or unicast, where The OBU sends the alarm information to the V2X AS through an application layer interface.
  • V2X AS car network application server
  • the second sending module is configured to send the alarm information to an OBU in the coverage of the RSU by means of an evolved multimedia broadcast multicast service (eMBMS) or a cell broadcast.
  • eMBMS evolved multimedia broadcast multicast service
  • the alarm information includes at least one of the following: V2V alarm information and V2P alarm information.
  • a device for processing alarm information in a vehicle network which is located on the OBU side of the vehicle network, and includes:
  • the second receiving module is configured to: receive the alarm indication information sent by the RSU;
  • the third sending module is configured to: when the OBU in the car network detects the alarm information, send the alarm information to the RSU according to the alarm indication information;
  • the third receiving module is configured to: receive the alarm information sent by the RSU to an OBU in its coverage area.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions, which are implemented to implement a method for processing alarm information applied to the Internet of Vehicles on the RSU side.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions, which are implemented when the computer executable instructions are executed to implement the processing method of the alarm information applied to the Internet of the OBU.
  • the RSU is used to send alarm indication information to all OBUs in the coverage area, and for the OBU that detects the alarm information, the alarm information is sent to the RSU under the indication of the alarm indication information, and the RSU is in the coverage range to all the OBUs.
  • Sending alarm information which can effectively improve the probability of success of V2X alarm service notification transmission/reception, and solve the related technology when the OBU has
  • the alarm service needs to be sent to other vehicles or pedestrians, other vehicles or pedestrians may not be able to receive the information of the above-mentioned alarm service due to location or other reasons, resulting in unsuccessful transmission of information of the alarm service.
  • FIG. 1 is a schematic diagram of sending traffic and scheduling information to a vehicle through a network information platform in the related art
  • FIG. 2 is a schematic structural diagram of an LTE vehicle network in the related art
  • FIG. 3 is a flowchart 1 of a method for processing alarm information in a vehicle network according to an embodiment of the present invention
  • FIG. 4 is a second flowchart of a method for processing alarm information in a vehicle network according to an embodiment of the present invention
  • FIG. 5 is a structural block diagram 1 of an apparatus for processing alarm information in a vehicle network according to an embodiment of the present invention
  • FIG. 6 is a structural block diagram 2 of an apparatus for processing alarm information in a vehicle network according to an embodiment of the present invention
  • FIG. 7 is a flowchart of a method for notifying alarm information according to an alternative embodiment of the present invention.
  • FIG. 8 is a structural diagram of an LTE eMBMS system according to an alternative embodiment of the present invention.
  • FIG. 9 is a flow chart of a method according to an alternative embodiment 1 of the present invention.
  • FIG. 10 is a flow chart of a method in accordance with an alternative embodiment 2 of the present invention.
  • FIG. 11 is a flow chart of a method in accordance with an alternative embodiment 3 of the present invention.
  • FIG. 12 is a schematic diagram of a system for information notification in accordance with an alternative embodiment of the present invention.
  • FIG. 13 is a schematic diagram of an OBU for information notification in accordance with an alternative embodiment of the present invention.
  • FIG. 3 is a flowchart 1 of a method for processing alarm information in a vehicle network according to an embodiment of the present invention. As shown in FIG. 3, the method includes the following steps:
  • Step S302 The roadside unit (RSU) sends alarm indication information to the onboard unit (OBU) in the vehicle network;
  • Step S304 When the OBU in the car network detects the alarm information, the RSU receives the alarm information sent by the OBU that detects the alarm information according to the alarm indication information;
  • Step S306 The RSU sends an alarm message to the OBU in its coverage area.
  • the RSU sends the alarm indication information to all the OBUs in the coverage area by using the RSU in the step S302, the step S304, and the step S306 in the embodiment, and sends the alarm information to the RSU under the indication of the alarm indication information for the OBU that detects the alarm information.
  • the RSU sends the alarm information to all the OBUs in the coverage area, so as to effectively improve the probability of the success of the V2X alarm service transmission/reception.
  • the OBU has an alarm service to be sent to other vehicles or pedestrians, other vehicles or The pedestrian may not be able to receive the information of the above alarm service due to location or other reasons, which may result in unsuccessful transmission of information of the alarm service.
  • the alarm information sent by the OBU according to the alarm indication information may be implemented in the following manner in the optional implementation manner of the RSU:
  • the alarm information is sent by the OBU through the broadcast or unicast mode of the application server (AS, Application Server).
  • the OBU sends alarm information to the V2X AS through the application layer interface.
  • the RSU sends the alarm information to the OBU in the coverage area in step S306, which can be implemented by: the RSU adopting the evolved multimedia broadcast multicast service (eMBMS) or Cell broadcasts are sent to OBUs within its coverage Alarm information.
  • eMBMS evolved multimedia broadcast multicast service
  • Cell broadcasts are sent to OBUs within its coverage Alarm information.
  • the alarm information in this embodiment includes at least one of the following: vehicle-to-vehicle (V2V) alarm information, and vehicle-to-pedestrian (V2P) alarm information.
  • V2V vehicle-to-vehicle
  • V2P vehicle-to-pedestrian
  • the alarm indication information involved in the embodiment is used to indicate the condition that the OBU sends the alarm information to the RSU, where the condition includes at least one of the following: an OBU location, a status, a time period, and an alarm information category.
  • FIG. 4 is a second flowchart of a method for processing alarm information in a vehicle network according to an embodiment of the present invention. As shown in FIG. 4, the steps of the method include:
  • Step S402 The onboard unit (OBU) in the car network receives the alarm indication information sent by the roadside unit (RSU);
  • Step S404 When the OBU in the Internet of Vehicles detects the alarm information, the OBU that detects the alarm information sends the alarm information to the RSU according to the alarm indication information.
  • Step S406 The OBU receives the alarm information sent by the RSU to the OBU in its coverage area.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present application which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods of various embodiments of the present application.
  • a device for processing alarm information in the vehicle network is also provided, and the device is used to implement the foregoing embodiments and optional embodiments, and details are not described herein.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 5 is a structural block diagram 1 of an apparatus for processing alarm information in a vehicle network according to an embodiment of the present invention.
  • the device is located on the side of the roadside unit (RSU).
  • the device includes: a first sending module 52, configured to: send an alarm indication information to an onboard unit (OBU) in the vehicle network;
  • the receiving module 54 is coupled to the first sending module 52, and is configured to: when the OBU in the vehicle network detects the alarm information, receive the alarm information sent by the OBU that detects the alarm information according to the alarm indication information; the second sending module 56,
  • the first receiving module 54 is coupled to the first receiving module 54 and configured to send the alarm information to the OBU in the coverage area of the RSU.
  • the first receiving module 54 is configured to: receive, by the O-network application server (V2X AS), the alarm information sent by the OBU through the application layer interface. Sends an alarm message to the V2X AS.
  • V2X AS O-network application server
  • the second sending module 56 is configured to: send the alarm information to the OBU in the coverage of the RSU by means of an evolved multimedia broadcast multicast service (eMBMS) or a cell broadcast.
  • eMBMS evolved multimedia broadcast multicast service
  • the alarm information involved in this embodiment includes at least one of the following: a vehicle-to-vehicle (V2V) alarm information, and a vehicle-to-pedestrian (V2P) alarm information.
  • V2V vehicle-to-vehicle
  • V2P vehicle-to-pedestrian
  • FIG. 6 is a structural block diagram 2 of a device for processing alarm information in a vehicle network according to an embodiment of the present invention.
  • the device is located on the on-board unit (OBU) side of the vehicle network.
  • the device includes: the second receiving module 62 is configured to: receive the alarm indication information sent by the roadside unit (RSU); and the third sending module 64, coupled to the second receiving module 62, configured to: when the OBU in the car network detects the alarm information, send the alarm information to the RSU according to the alarm indication information; the third receiving module 66 is coupled with the third sending module 64. , set to: Receive the alarm information sent by the RSU to the OBU in its coverage.
  • RSU roadside unit
  • the optional embodiment provides a method for notifying the alarm information.
  • the principle of the method is: the roadside unit (RSU) broadcasts the indication information in the coverage area, and the onboard unit (OBU) that receives the indication information determines that there is a car to the vehicle.
  • the OBU reports the vehicle to the basic device (V2I) alarm information according to the indication information of the RSU, and the RSU that receives the alarm information adopts the eMBMS mode or the cell in the coverage area. Broadcast and forward the received alarm information.
  • the probability of success of V2X alarm service notification transmission/reception can be improved.
  • FIG. 7 is a flowchart of a method for notifying alarm information according to an alternative embodiment of the present invention. As shown in FIG. 7, the steps of the method include:
  • step S701 the RSU broadcasts the indication information.
  • the RSU is a base station (eNB) or a stationary UE (User Equipment) or a dedicated RSU, such as an access point (AP, Access Point) in the communication protocol 802.11P;
  • eNB base station
  • UE User Equipment
  • AP Access Point
  • Reporting means that the OBU reports the alarm information to the RSU through the V2I mode.
  • the alarm information includes at least one of the following: vehicle-to-vehicle (V2V) alarm information, and vehicle-to-pedestrian (V2P) alarm information.
  • V2V vehicle-to-vehicle
  • V2P vehicle-to-pedestrian
  • the indication information may further include: reporting the air interface resource indication information, where the air interface resource is an uplink Uu interface resource of the UE to the eNB, where the resource is a resource pool, where the resource is used to transmit the V2I information.
  • the resource indication information is used in the scenario where the OBU independently selects the resource. If the RSU scheduling resource is used, the RSU does not need to allocate the resource pool in advance. When the OBU sends the request, the RSU allocates resources for the OBU.
  • the air interface resource is configured separately from the air interface resource used for V2V/V2P, that is, the V2I uplink resource and the V2V/V2P resource are independent of each other.
  • the resource pool may be indicated by one or more of the following: time-frequency location/index, cyclic prefix (CP, Cyclic Prefix) length, period, modulation and coding scheme (MCS).
  • CP cyclic prefix
  • Cyclic Prefix length
  • MCS modulation and coding scheme
  • the RSU determines the "alarm information reporting indication" according to its own location or carrier/service provider settings, for example, the RSU is on or under the viaduct, or there is a high-rise building blockage near the RSU, or the road near the RSU is poorly visible, or the operator or service
  • the RSU requests the RSU to receive the alarm information, and so on, and the RSU determines that the "alarm information reporting indication" is true (true), otherwise, the "alarm information reporting indication" is false (false).
  • the RSU can also set the condition for reporting the alarm information on the OBU.
  • the OBU reports the alarm information, for example, when the OBU is in a specific location, or during a certain period of time, or when a specific event occurs.
  • the OBU needs to report the police information to the RSU.
  • the RSU can also indicate the alarm information reporting manner of the OBU in the indication information, for example, the OBU directly reports the alarm information to the RSU or reports it to the V2X service center.
  • the OBU directly reports the alarm information to the RSU in the V2I mode. Report the police information to the V2X service center to adopt the application layer mode.
  • the broadcast is implemented by using a broadcast message or a new broadcast message in the related system, and the indication information period is Sex broadcasts are sent.
  • Step S702 the OBU determines whether to send an alarm service to the RSU, and if yes, proceeds to step S703, otherwise proceeds to step S705.
  • the OBU first detects the alarm service. If the road has a vehicle failure, road congestion, heavy fog, road maintenance, etc., the OBU needs to notify the neighboring other vehicles or pedestrians of the detected alarm information. Then, the OBU determines whether it needs to be reported to the RSU according to the received indication information of the RSU broadcast in step S701. If the indication information of the RSU broadcast in step S701 clearly indicates that the "alarm information reporting indication" is true, the OBU determines that the OBU needs to be The detected alarm service is reported to the RSU.
  • Step S703 the OBU selects a resource to send an alarm message to the RSU.
  • the OBU sends alarm information to the RSU in the following two ways:
  • the OBU sends an alarm message to the RSU through eMBMS.
  • the OBU first sends an alarm message to the car network service center (V2X-SC, V2X-Service Center) through the application layer, and the car network service center forwards the alarm information to the RSU through the related eMBMS architecture, and the RSU is carried by the eMBMS. Forward alarm information to other vehicles and/or pedestrians.
  • the V2X-SC is dedicated to V2X services
  • the VC1 in FIG. 8 is an application between the V2X-SC and the OBU/UE. Layer interface for transmitting application layer data.
  • S1-U is an interface between an eNB/RSU and an S/P-GW (Serving/PDN GateWay, a serving gateway/packet data network gateway), and SGi is between V2X-SC and S/P-GW.
  • Interface VC2 is the interface between V2X-SC and BM-SC (Broadcast Multicast Service Center), Uu is the interface between UE/OBU and eNB/RSU, and M1 is eNB/RSU and MBMS.
  • M2 is the interface between the eNB/RSU and the MCE (Multicast Coordination Entity)
  • M3 is the MCE and the MME
  • An interface between the Mobility Management Entity, the mobility management entity, the S1-MME is an interface between the eNB/RSU and the MME
  • Sm is an interface between the MME and the MBMS-GW
  • S11 is between the MME and the S/P-GW.
  • the interface, Sgi-mb and SGmb are the interfaces between the MBMS-GW and the BM-SC.
  • the OBU may also send the V2I alarm information by using a cell broadcast manner.
  • the OBU When the OBU sends the V2I alarm information, it also sends alarm information to other neighboring OBUs and/or pedestrians, that is, sends the alarm information to the neighboring vehicle through the V2V, sends the alarm information to the pedestrian through the V2P, and transmits the broadcast or multicast bearer.
  • the OBU is an RRC (Radio Resource Control) connection (RRC_Connected) or an RRC idle (RRC_Idle) mode.
  • RRC_Connected Radio Resource Control
  • RRC_Idle RRC idle
  • the OBU sends the V2I alarm information at the time specified by the resource pool.
  • the unicast bearer is sent. If the OBU is in the connected state, the OBU sends the alarm information directly to the RSU. If the OBU is in the idle state, the OBU first enters the connected state and then sends the alarm to the RSU. Alarm information.
  • Step S704 the RSU broadcasts and forwards the alarm information.
  • the RSU receives the alarm information sent by the OBU, and the RSU determines that the alarm information is a V2V and/or V2P alarm service, and may be determined according to the resource location of the received alarm information.
  • the RSU can broadcast the received alarm information through cell broadcast or eMBMS.
  • the OBU vehicle or pedestrian
  • the OBU in the RSU coverage area monitors and receives the required alarm information according to the cell broadcast or eMBMS service flow in the related art.
  • Step S705 the OBU sends the V2V/V2P alarm information.
  • the OBU determines that the alarm information is not required to be reported to the RSU according to the indication information in the step S701, that is, the indication information is “alarm information reporting indication” is false (false), and the OBU selects the V2V/V2P transmission resource according to the RSU indication, and passes the foregoing.
  • the resource sends V2V/V2P alarm information.
  • the D2D discovery advertisement is used to transmit the alarm information
  • the content discovered by the D2D itself is a V2X alarm service
  • the content is transparent to the access layer, that is, the access layer sends the content to the upper layer, and the upper layer parses the required V2X.
  • the service content of the alarm if the V2X alarm service notification is transmitted by using the D2D communication control channel, the D2D communication data channel is used for transmitting the V2X alarm service, and the resource location of the D2D communication data channel is indicated in the D2D communication control channel, and the OBU is monitored according to the received
  • the notification message can further obtain the required V2X alarm service content.
  • the OBU in this alternative embodiment is equivalent to a User Equipment (UE).
  • UE User Equipment
  • FIG. 9 is a flowchart of the method according to the optional embodiment of the present invention. As shown in FIG. 9, the steps of the method include:
  • step S901 the RSU broadcasts the indication information.
  • the indication information at least includes: an alarm information reporting indication, and reporting the resource pool.
  • the alarm information reporting indication is used by the OBU to determine whether to report the alarm information to the RSU, and the reporting resource pool is used by the OBU to select the resource to send the alarm information to the RSU.
  • Step S902 the OBU determines whether it is necessary to report the alarm information to the RSU, and if so, then proceeds to step S903, otherwise, proceeds to step S905;
  • the OBU determines whether the alarm information needs to be reported to the RSU according to the indication of the RSU. If the alarm information reporting indication is true or the event detected by the OBU satisfies the reporting condition set by the RSU, the OBU determines that the alarm information needs to be reported to the RSU.
  • Step S903 the OBU selects a resource and reports the alarm information to the RSU.
  • the OBU selects a resource in the reporting resource pool for sending V2I alarm information, and the OBU is in an RRC_Connected or RRC_Idle mode.
  • the OBU sends the alarm information at the time specified by the resource pool or immediately.
  • the unicast mode is sent.
  • the OBU needs to enter the connected state before sending the alarm.
  • the corresponding OBU retreats the resources in the resource pool after a random time.
  • Step S904 the RSU broadcasts and forwards the alarm information.
  • the RSU can determine whether the received information is V2V/V2P alarm information according to the location of the resource; the RSU sends the alarm information by using the cell broadcast or the eMBMS mode, and the OBU in the RSU coverage monitors and receives according to the cell broadcast or the eMBMS process in the related art. Required alarm information.
  • Step S905 the OBU selects a resource for sending V2V/V2P alarm information.
  • the OBU selects the resource in the resource pool for the V2V/V2P.
  • the resource pool used for the V2V/V2P is different from the reported resource pool in the S2, that is, the V2V/V2P resource pool is used for the PC5 interface.
  • the reporting resource pool in step S901 is used for the uplink Uu port.
  • the OBU selects the D2D discovery advertisement resource for transmitting the V2V/V2P alarm information. If the D2D communication is used to transmit the V2V/V2P alarm information, the OBU first sends the control signal through the D2D communication control channel. Then, the V2V/V2P alarm information is sent according to the location indicated by the above control signaling. The transmission is implemented via a broadcast or multicast bearer.
  • FIG. 10 is a flowchart of the method according to the second embodiment of the present invention. As shown in FIG. 10, the steps of the method include:
  • step S1001 the RSU broadcasts the indication information.
  • the indication information includes at least: an alarm information reporting indication.
  • step S1002 the OBU determines whether it is necessary to report the alarm information. If yes, the process goes to step S1003, otherwise, the process goes to step S1007.
  • the OBU determines whether the alarm information needs to be reported to the RSU according to the indication of the RSU. If the alarm information reporting indication is true or the event detected by the OBU satisfies the reporting condition set by the RSU, the OBU determines that the alarm information needs to be reported to the RSU.
  • step S1003 the OBU requests the RSU to send the alarm information.
  • the OBU is RRC_Connected or RRC_Idle. If it is in the connected state, the OBU directly reports the report to the RSU. If it is in the idle state, the OBU requests the RSU to report the result through the random access procedure.
  • step S1004 the RSU allocates resources for reporting the alarm information to the OBU.
  • the RSU allocates resources according to the request of the OBU and indicates the resources to the OBU.
  • step S1005 the OBU reports the alarm information to the RSU.
  • the OBU reports the alarm information to the RSU by using the allocated resources.
  • step S1006 the RSU broadcasts the alarm information.
  • the RSU can determine whether the received information is V2V/V2P alarm information according to the location of the resource; the RSU sends the alarm information by using the cell broadcast or the eMBMS mode, and the OBU in the RSU coverage monitors and receives according to the cell broadcast or the eMBMS process in the related art. Required alarm information.
  • step S1007 the OBU sends the V2V/V2P alarm information.
  • the OBU selects a resource in the resource pool for the V2V/V2P.
  • the resource pool used for the V2V/V2P is different from the reported resource pool in the S2, that is, the V2V/V2P resource pool is used for the PC5 interface.
  • the reporting resource pool in step S901 is used for the uplink Uu port.
  • the OBU selects the D2D discovery advertisement resource for transmitting the V2V/V2P alarm information. If the D2D communication is used to transmit the V2V/V2P alarm information, the OBU first sends the control signal through the D2D communication control channel. Then, the V2V/V2P alarm information is sent according to the location indicated by the above control signaling. The transmission is implemented via a broadcast or multicast bearer.
  • FIG. 11 is a flowchart of a method according to an alternative embodiment of the present invention. As shown in FIG. 11, the steps of the method include:
  • step S1101 the RSU broadcasts the indication information.
  • the indication information includes at least: an alarm information reporting indication, and is forwarded by using an eMBMS manner;
  • the eMBMS mode is used to forward alarm information to the service center on the OBU.
  • the service center forwards alarm information through the eMBMS architecture.
  • step S1102 the OBU determines whether the alarm information is reported to the RSU, and if yes, the process goes to step S1103, otherwise, the process goes to step S1105.
  • the OBU determines whether the alarm information needs to be reported to the RSU according to the indication of the RSU. If the alarm information reporting indication is true or the event detected by the OBU satisfies the reporting condition set by the RSU, the OBU determines that the alarm information needs to be reported to the RSU.
  • step S1103 the OBU sends an alarm message to the service center.
  • the OBU sends alarm information to the service center through the application layer data.
  • the service center is a server for the V2X service, and can analyze, process, and forward the V2X service content.
  • step S1104 the service center sends the alarm information to the OBU in the eMBMS mode.
  • the service center forwards the alarm information to the OBU in the coverage area by using the eMBMS bearer in the related technology.
  • the coverage area refers to the area affected by the alarm information, and the service center determines the coverage area according to the content of the alarm information.
  • the OBU monitors and receives the required alarm information according to the relevant process.
  • step S1105 the OBU sends the V2V/V2P alarm information.
  • the OBU selects the resource in the resource pool for the V2V/V2P.
  • the resource pool used for the V2V/V2P is different from the reported resource pool in the S2, that is, the V2V/V2P resource pool is used for the PC5 interface.
  • the resource pool is reported to be used for the uplink Uu port.
  • the OBU selects the D2D discovery advertisement resource for transmitting the V2V/V2P alarm information. If the D2D communication is used to transmit the V2V/V2P alarm information, the OBU first sends the control signal through the D2D communication control channel. Then, the V2V/V2P alarm information is sent according to the location indicated by the above control signaling. The transmission is implemented via a broadcast or multicast bearer.
  • FIG. 12 is a schematic diagram of a system for information notification according to an alternative embodiment of the present invention. As shown in FIG. 12, the system includes: an OBU 60, an RSU 61, and an eMBMS network element 62;
  • the RSU 61 is configured to: broadcast indication information, indicating that the OBU 60 in the coverage area selects resources autonomously, allocates resources for reporting alarm information to the OBU 60, and receives alarm information and broadcast forwarding alarm information;
  • the OBU 60 is configured to: receive the indication information broadcasted by the RSU 61, determine whether the alarm information needs to be reported, select or request the resource to send the alarm information, and receive the alarm information broadcast by the RSU 61;
  • the eMBMS network element 62 is configured to: forward alarm information, and the eMBMS network element includes: an MCE, an MBMS-GW, and a BM-SC.
  • FIG. 13 is a schematic diagram of an OBU for information notification according to an alternative embodiment of the present invention.
  • the OBU includes: a determining unit 600, a receiving unit 601, and a sending unit 602;
  • the determining unit 600 is configured to: determine whether the police information needs to be reported;
  • the receiving unit 601 is configured to: receive the indication information of the RSU broadcast and the alarm information of the RSU broadcast, and receive the resource allocation indication information of the RSU;
  • the sending unit 602 is configured to: report alarm information to the RSU, and send an alarm information sending request to the RSU.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.
  • the embodiment of the invention further provides a computer readable storage medium.
  • the computer readable storage medium may be configured to store program code for performing the following steps:
  • Step S1 The OBU in the car network receives the alarm indication information sent by the RSU;
  • Step S2 When the OBU detects the alarm information in the Internet of Vehicles, the OBU that detects the alarm information sends the alarm information to the RSU according to the alarm indication information.
  • Step S3 The OBU receives the alarm information sent by the RSU to all OBUs in its coverage area.
  • the computer readable storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), and a mobile device.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, which are implemented to implement a method for processing alarm information applied to an Internet of Vehicles on an RSU side.
  • modules or steps of the present application described above may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and at some In some cases, the steps shown or described may be performed in an order different than that herein, or they may be separately fabricated into individual integrated circuit modules, or a plurality of modules or steps may be fabricated into a single integrated circuit module. . Thus, the application is not limited to any particular combination of hardware and software.
  • the embodiment of the invention provides a method and a device for processing alarm information in a vehicle network, which can effectively improve the success probability of sending/receiving V2X alarm service notifications, and solve the related art when the OBU has an alarm service to be sent to other vehicles or pedestrians.
  • Other vehicles or pedestrians may not be able to receive the information of the above alarm service due to location or other reasons, resulting in unsuccessful transmission of information of the alarm service.

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Abstract

一种车联网中告警信息的处理方法，包括：路边单元RSU向车联网中的车载单元OBU发送告警指示信息；在车联网中的OBU检测到告警信息时，RSU接收检测到告警信息的OBU依据告警指示信息发送的告警信息；RSU向其覆盖范围内的OBU发送告警信息。通过上述方法，解决了相关技术中当OBU有告警业务需要发送给其他车辆或行人时，其他车辆或行人由于位置或者其他原因可能无法接收上述告警业务的信息，从而导致告警业务的信息发送不成功的问题。

Description

车联网中告警信息的处理方法及装置 技术领域
本申请涉及但不限于通信领域，涉及一种车联网中告警信息的处理方法及装置。
背景技术
随着经济社会高速发展，中国汽车保有量迅速增长，道路交通事故频繁发生，已成为近年来影响我国公众安全感的重要因素之一，道路交通安全问题已经成为影响社会和谐和改善民生的基本问题之一。中国迫切需要从技术、政策、教育等各方面改善交通安全，其中，提升车辆安全设计是其中的重要组成部分。
提升车辆安全的技术主要分为被动安全技术和主动安全技术。被动安全技术用于在事故发生后，对车内、车外人员及物品的保护；主动安全技术用于防止和减少车辆发生事故，避免人员受到伤害；主动安全技术是现代车辆安全技术发展的重点和趋势。
基于通信的碰撞预警系统，通过利用先进的无线通信技术和新一代信息处理技术，实现车与车、车与路侧基础设施间的实时信息交互，告知彼此目前的状态(包括车辆的位置、速度、加速度、行驶路径)及获知的道路环境信息，协作感知道路危险状况，及时提供多种碰撞预警信息，防止道路交通安全事故的发生，成为当前各国试图解决道路交通安全问题的一种新的思路。
图1为相关技术中通过网络信息平台向车辆发送交通、调度信息的示意图，图2是相关技术中LTE(Long Term Evolution，长期演进)车辆网的架构示意图。结合图1和图2所示，车联网(Vehicle to Everything，简称为V2X)是指通过装载在车辆上的传感器、车载终端及电子标签提供车辆信息，采用各种通信技术实现车与车(Vehicle to Vehicle，简称为V2V)、车与人(Vehicle to personal，简称为V2P)、车与路(基础设施)(Vehicle to Infrastructure，简称为V2I)互连互通，并在信息网络平台上对信息进行提取、共享等有效 利用，对车辆进行有效的管控和提供综合服务。
近年来，随着新的移动通信技术的发展，国际上出现了使用LTE技术来解决基于车联网通信应用的研究。路边单元(Road Side Unit，简称为RSU)可以接收车辆请求，保证车辆接入互联网(Internet)，有网关的功能；此外，它也拥有数据运算、存储、转发的功能。
车辆与路边单元(Vehicle to Road Side Unit，简称为V2R，也可称为V2I)的通信的主要特点包括：
(1)RSU广播时，广播信息只发送给它覆盖范围内的所有车辆；
(2)RSU和车辆之间是单跳传输，防止多跳带来的包传递成功率低、网络吞吐量低等不利影响；
(3)RSU可以快速地接收探测到经过的车辆、红绿灯和一些路况信息，并把这些信息进行处理、重新排序、选择之后再发给车辆。
上述三个方面保证车辆经过RSU时，通过与RSU建立连接保证车辆可以可靠、实时地接入Internet或者下载RSU存储的数据。
由上述可知，当车载单元(OBU，On board Unit)有告警业务需要发送给其他车辆或行人时，其他车辆或行人由于位置或者其他原因可能无法接收上述告警业务的信息，从而导致告警业务的信息发送不成功。针对相关技术中的上述问题，目前尚未有解决办法。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本发明实施例提供了一种车联网中告警信息的处理方法及装置，以至少解决相关技术中当车载单元(OBU)有告警业务需要发送给其他车辆或行人时，其他车辆或行人由于位置或者其他原因可能无法接收上述告警业务的信息，从而导致告警业务的信息发送不成功的问题。
根据本发明实施例的一个方面，提供了一种车联网中告警信息的处理方法，包括：
路边单元(RSU)向车联网中的车载单元(OBU)发送告警指示信息；
在车联网中的OBU检测到告警信息时，所述RSU接收所述检测到告警信息的OBU依据所述告警指示信息发送的所述告警信息；
所述RSU向其覆盖范围内的OBU发送所述告警信息。
可选地，所述RSU接收所述检测到告警信息的OBU依据所述告警指示信息发送的所述告警信息包括：所述RSU接收所述述检测到告警信息的OBU通过车联网应用服务器(V2X AS)通过广播或单播方式发送的所述告警信息，其中，所述OBU通过应用层接口向所述V2X AS发送所述告警信息。
可选地，所述RSU向其覆盖范围内的OBU发送所述告警信息包括：所述RSU通过演进的多媒体广播多播业务(eMBMS，evolved Multicast Broadcast Multimedia Service)的方式或小区广播向其覆盖范围内的OBU发送所述告警信息。
可选地，所述告警信息包括以下至少之一：车到车(V2V)告警信息、车到行人(V2P)告警信息。
可选地，所述告警指示信息用于指示所述OBU向RSU发送告警信息的条件，其中，所述条件包括以下至少之一：OBU位置、状态、时段、告警信息类别。
根据本发明实施例的另一个方面，提供了一种车联网中告警信息的处理方法，包括：
车联网中的OBU接收到RSU发送的告警指示信息；
在车联网中的OBU检测到告警信息时，所述检测到告警信息的OBU依据所述告警指示信息向所述RSU发送告警信息；
所述OBU接收所述RSU向其覆盖范围内的OBU发送的所述告警信息。
根据本发明实施例的再一个方面，提供了一种车联网中告警信息的处理装置，位于RSU侧，包括：
第一发送模块，设置为：向车联网中的OBU发送告警指示信息；
第一接收模块，设置为：在车联网中的OBU检测到告警信息时，接收所 述检测到告警信息的OBU依据所述告警指示信息发送的所述告警信息；
第二发送模块，设置为：向所述RSU覆盖范围内的OBU发送所述告警信息。
可选地，所述第一接收模块是设置为：接收所述述检测到告警信息的OBU通过车联网应用服务器(V2X AS)通过广播或单播方式发送的所述告警信息，其中，所述OBU通过应用层接口向所述V2X AS发送所述告警信息。
可选地，所述第二发送模块是设置为：通过演进的多媒体广播多播业务(eMBMS)的方式或小区广播向所述RSU覆盖范围内的OBU发送所述告警信息。
可选地，所述告警信息包括以下至少之一：V2V告警信息、V2P告警信息。
根据本发明实施例的再一个方面，提供了一种车联网中告警信息的处理装置，位于车联网中的OBU侧，包括：
第二接收模块，设置为：接收到RSU发送的告警指示信息；
第三发送模块，设置为：在车联网中的OBU检测到告警信息时，依据所述告警指示信息向所述RSU发送告警信息；
第三接收模块，设置为：接收所述RSU向其覆盖范围内的OBU发送的所述告警信息。
本发明实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被执行时实现应用于RSU侧的车联网中告警信息的处理方法。
本发明实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被执行时实现应用于OBU侧的车联网中告警信息的处理方法。
在本发明实施例中，采用RSU对覆盖范围内的所有OBU发送告警指示信息，而对于检测到告警信息的OBU，在告警指示信息的指示下向RSU发送告警信息，RSU在覆盖范围内向所有OBU发送告警信息，从而能够有效地提高V2X告警业务通知发送/接收的成功概率，解决相关技术中当OBU有 告警业务需要发送给其他车辆或行人时，其他车辆或行人由于位置或者其他原因可能无法接收上述告警业务的信息，从而导致告警业务的信息发送不成功的问题。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1为相关技术中通过网络信息平台向车辆发送交通、调度信息的示意图；
图2是相关技术中LTE车辆网的架构示意图；
图3是根据本发明实施例的车联网中告警信息的处理方法的流程图一；
图4是根据本发明实施例的车联网中告警信息的处理方法的流程图二；
图5是根据本发明实施例的车联网中告警信息的处理装置的结构框图一；
图6是根据本发明实施例的车联网中告警信息的处理装置的结构框图二；
图7是根据本发明可选实施例的告警信息的通知方法的流程图；
图8是根据本发明可选实施例的LTE eMBMS系统架构图；
图9是根据本发明可选实施例一的方法流程图；
图10是根据本发明可选实施例二的方法流程图；
图11是根据本发明可选实施例三的方法流程图；
图12是根据本发明可选实施例的信息通知的系统的示意图；
图13是根据本发明可选实施例的信息通知的OBU的示意图。
本发明的实施方式
下文中将参考附图并结合实施例来详细说明本申请。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
本实施例提供了一种车联网中告警信息的处理方法。图3是根据本发明实施例的车联网中告警信息的处理方法的流程图一，如图3所示，该方法包括如下步骤：
步骤S302：路边单元(RSU)向车联网中的车载单元(OBU)发送告警指示信息；
步骤S304：在车联网中的OBU检测到告警信息时，RSU接收检测到告警信息的OBU依据告警指示信息发送的告警信息；
步骤S306：RSU向其覆盖范围内的OBU发送告警信息。
通过本实施例中的步骤S302、步骤S304及步骤S306，采用RSU对覆盖范围内的所有OBU发送告警指示信息，而对于检测到告警信息的OBU，在告警指示信息的指示下向RSU发送告警信息，RSU向覆盖范围内的所有OBU发送告警信息，从而能够有效地提高V2X告警业务通知发送/接收的成功概率，解决相关技术中当OBU有告警业务需要发送给其他车辆或行人时，其他车辆或行人由于位置或者其他原因可能无法接收上述告警业务的信息，从而导致告警业务的信息发送不成功的问题。
对于本实施例步骤S304中涉及到的RSU接收检测到告警信息的OBU依据告警指示信息发送的告警信息，在本实施例的可选实施方式中，可以通过如下方式来实现：RSU接收述检测到告警信息的OBU通过车联网(V2X)应用服务器(AS，Application Server)通过广播或单播方式发送的告警信息，其中，OBU通过应用层接口向V2X AS发送告警信息。
在本实施例的另一个可选实施方式中，步骤S306中RSU向其覆盖范围内的OBU发送告警信息，可以通过如下方式来实现：RSU通过演进的多媒体广播多播业务(eMBMS)的方式或小区广播向其覆盖范围内的OBU发送 告警信息。
此外，在本实施例中的告警信息包括以下至少之一：车到车(V2V)告警信息、车到行人(V2P)告警信息。
本实施例中涉及到的告警指示信息用于指示OBU向RSU发送告警信息的条件，其中，该条件包括以下至少之一：OBU位置、状态、时段、告警信息类别。
图4是根据本发明实施例的车联网中告警信息的处理方法的流程图二，如图4所示，该方法的步骤包括：
步骤S402：车联网中的车载单元(OBU)接收到路边单元(RSU)发送的告警指示信息；
步骤S404：在车联网中的OBU检测到告警信息时，检测到告警信息的OBU依据告警指示信息向RSU发送告警信息；
步骤S406：OBU接收RSU向其覆盖范围内的OBU发送的告警信息。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本申请各个实施例的方法。
在本实施例中还提供了一种车联网中告警信息的处理装置，该装置用于实现上述实施例及可选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图5是根据本发明实施例的车联网中告警信息的处理装置的结构框图一。该装置位于路边单元(RSU)侧，如图5所示，该装置包括：第一发送模块52，设置为：向车联网中的车载单元(OBU)发送告警指示信息；第一 接收模块54，与第一发送模块52耦合连接，设置为：在车联网中的OBU检测到告警信息时，接收检测到告警信息的OBU依据告警指示信息发送的告警信息；第二发送模块56，与第一接收模块54耦合连接，设置为：向所述RSU覆盖范围内的OBU发送告警信息。
可选地，该第一接收模块54是设置为：接收所述检测到告警信息的OBU通过车联网应用服务器(V2X AS)通过广播或单播方式发送的告警信息，其中，OBU通过应用层接口向V2X AS发送告警信息。
可选地，第二发送模块56是设置为：通过演进的多媒体广播多播业务(eMBMS)的方式或小区广播向所述RSU覆盖范围内的OBU发送告警信息。
本实施例中涉及到的告警信息包括以下至少之一：车到车(V2V)告警信息、车到行人(V2P)告警信息。
图6是根据本发明实施例的车联网中告警信息的处理装置的结构框图二。该装置位于车联网中的车载单元(OBU)侧，如图6所示，该装置包括：第二接收模块62设置为：接收到路边单元(RSU)发送的告警指示信息；第三发送模块64，与第二接收模块62耦合连接，设置为：在车联网中的OBU检测到告警信息时，依据告警指示信息向RSU发送告警信息；第三接收模块66，与第三发送模块64耦合连接，设置为：接收RSU向其覆盖范围内的OBU发送的告警信息。
下面结合本申请的可选实施例对本申请进行举例说明。
本可选实施例提供了一种告警信息的通知方法，该方法的原理为：路边单元(RSU)在覆盖区域内广播指示信息，收到指示信息的车载单元(OBU)确定有车到车(V2V)或车到人(V2P)告警信息需要发送时，OBU根据RSU的指示信息向RSU上报车到基础设备(V2I)告警信息，收到告警信息的RSU在覆盖区域内采用eMBMS方式或小区广播转发收到的告警信息。通过本可选实施例的方法，能够提高V2X告警业务通知发送/接收的成功概率。
图7是根据本发明可选实施例的告警信息的通知方法的流程图，如图7所示，该方法的步骤包括：
步骤S701，RSU广播指示信息。
其中，该RSU为基站(eNB)或静止UE(User Equipment，用户设备)或专用的RSU，例如通信协议802.11P中的接入点(AP，Access Point)；
该指示信息至少包括：告警信息上报指示；该指示信息可通过一个比特R说明，例如：R＝1说明需要上报；R＝0说明不需要上报。上报是指OBU通过V2I方式向RSU上报告警信息。告警信息包括以下至少一种：车到车(V2V)告警信息、车到行人(V2P)告警信息。
可选地，该指示信息还可以包括：上报空口资源指示信息，其中，空口资源是指UE到eNB的上行Uu口资源，该资源为一个资源池，其中的资源用于传输V2I信息。需要指出的是，该资源指示信息用于OBU自主选择资源的场景，如果采用RSU调度资源，则RSU不需要事先分配资源池，当OBU发送请求时，由RSU为OBU分配资源。上报空口资源与用于V2V/V2P的空口资源分开配置，即V2I上行资源与V2V/V2P资源相互独立。
资源池可通过以下一种或多种信息指示：时间-频率位置/索引、循环前缀(CP，Cyclic Prefix)长度、周期、调制和编码方案(MCS，Modulation and Coding Scheme)。
RSU根据自身位置或者运营商/业务商设置确定“告警信息上报指示”，例如RSU处于高架桥上或下、或RSU附近有高层建筑遮挡、或RSU附近道路可视条件较差、或运营商或业务商要求该RSU接收告警信息，等等，则RSU确定“告警信息上报指示”为真(true)，否则，“告警信息上报指示”为假(false)。
需要说明的是，RSU还可以设定OBU上报告警信息的条件，当条件满足时，OBU上报告警信息，例如OBU处于特定位置时、或者在某个特定时间段内、或者特定事件发生时，OBU需要上报告警信息给RSU。
此外，RSU在指示信息中还可以指示OBU的告警信息上报方式，例如包括：OBU直接上报告警信息给RSU或者上报给V2X业务中心；其中，OBU直接上报告警信息给RSU采用V2I方式，OBU上报告警信息给V2X业务中心采用应用层方式。
广播采用相关系统中的广播消息或新的广播消息实现，该指示信息周期 性广播发送。
步骤S702，OBU判断是否向RSU发送告警业务，如果是，则转向步骤S703，否则转向步骤S705。
其中，OBU先检测到告警业务，如道路有车辆发生故障、道路拥堵、有大雾、道路维修等等，OBU需要将检测到的告警信息通知给临近的其他车辆或者行人。然后，OBU根据收到的步骤S701中的RSU广播的指示信息，判断是否需要上报给RSU，如步骤S701中RSU广播的指示信息中明确指示“告警信息上报指示”为真，则OBU确定需要将检测到的告警业务上报给RSU。
步骤S703，OBU选择资源向RSU发送告警信息。
其中，OBU有以下两种方式向RSU发送告警信息：
1)OBU直接向RSU发送告警信息；
2)OBU通过eMBMS方式向RSU发送告警信息。
在上述方式2)中，OBU首先通过应用层向车联网业务中心(V2X-SC，V2X-Service Center)发送告警信息，车联网业务中心通过相关的eMBMS架构向RSU转发告警信息，RSU通过eMBMS承载向其他车辆和/或行人转发告警信息。图8是根据本发明可选实施例的LTE eMBMS系统架构图，如图8所示，V2X-SC为专用于V2X业务，此外图8中的VC1为V2X-SC和OBU/UE之间的应用层接口，用于传输应用层数据。在图8中，S1-U为eNB/RSU和S/P-GW(Serving/ PDN GateWay，服务网关/分组数据网网关)之间的接口，SGi为V2X-SC和S/P-GW之间的接口，VC2为V2X-SC和BM-SC(Broadcast Multicast Service Center，广播组播业务中心)之间的接口，Uu为UE/OBU和eNB/RSU之间的接口，M1为eNB/RSU和MBMS-GW(Multimedia Broadcast Multicast Service-GateWay，多媒体广播多播业务网关)之间的接口，M2为eNB/RSU和MCE(Multicast Coordination Entity，多播协调实体)之间的接口，M3为MCE和MME(Mobility Management Entity，移动管理实体)之间的接口，S1-MME为eNB/RSU和MME之间的接口，Sm为MME和MBMS-GW之间的接口，S11为MME和S/P-GW之间的接口，Sgi-mb和SGmb为MBMS-GW和BM-SC之间的接口。
可选地，OBU还可以采用小区广播方式发送V2I告警信息。
在OBU在发送V2I告警信息时，也向临近的其他OBU和/或行人发送告警信息，即通过V2V向邻近车辆发送告警信息，通过V2P向行人发送告警信息，发送采用广播或多播承载。
OBU为RRC(Radio Resource Control，无线资源控制)连接(RRC_Connected)或RRC空闲(RRC_Idle)模式。OBU在资源池指定的时刻或者立即发送V2I告警信息，发送采用单播承载，如果OBU为连接态，则直接向RSU发送告警信息，如果OBU为空闲态，则首先进入连接态后再向RSU发送告警信息。
需要指出的是，当OBU自主选择V2I空口资源时，如果有两个或以上的OBU同时选择了相同的资源发送业务通知，则会发生资源请求冲突。如果发生冲突，一般采用发生冲突的OBU后退随机时间后再重新选择资源的方式解决冲突。
步骤S704，RSU广播转发告警信息。
其中，RSU收到OBU发送的告警信息，RSU确定该告警信息为V2V和/或V2P告警业务，可以根据收到告警信息的资源位置确定。
RSU可通过小区广播或者eMBMS方式广播收到的告警信息，RSU覆盖区域内的OBU(车辆或行人)根据相关技术中的小区广播或eMBMS业务流程监听并接收所需的告警信息。
步骤S705，OBU发送V2V/V2P告警信息。
其中，OBU根据步骤S701中的指示信息确定不需要上报告警信息给RSU，即指示信息为“告警信息上报指示”为假(false)，OBU根据RSU指示选择V2V/V2P发送资源，并通过上述资源发送V2V/V2P告警信息。
可选地，如果采用D2D发现通告传输告警信息，则D2D发现的内容本身为V2X告警业务，该内容对接入层透明，即接入层将上述内容发送给上层，上层解析得到所需的V2X告警业务内容；如果采用D2D通信控制信道传输V2X告警业务通知，则D2D通信数据信道用于传输V2X告警业务，且在D2D通信控制信道中指示D2D通信数据信道的资源位置，监听OBU根据收到的 通知消息，进一步可以获取所需的V2X告警业务内容。
需要指出的是，本可选实施例中的OBU相当于用户设备(UE)。
下面结合本发明可选实施的具体实施例对本发明可选实施例进行详细说明。
实施例一
本实施例是针对OBU自主选择资源发送V2I告警信息的场景；图9是根据本发明可选实施例一的方法流程图，如图9所示，该方法的步骤包括：
步骤S901，RSU广播指示信息。
其中，指示信息至少包括：告警信息上报指示、上报资源池。其中，告警信息上报指示用于OBU确定是否上报告警信息到RSU，上报资源池用于OBU自主选择资源向RSU发送告警信息。
步骤S902，OBU判断是否需要上报告警信息给RSU，如果是，则转向步骤S903，否则，转向步骤S905；
其中，OBU根据RSU的指示判断是否需要上报告警信息给RSU，如果告警信息上报指示为真或者OBU检测到的事件满足RSU设定的上报条件，则OBU确定需要上报告警信息给RSU。
步骤S903，OBU选择资源并向RSU上报告警信息；
其中，OBU在上报资源池中选择资源用于发送V2I告警信息，该OBU为RRC_Connected或RRC_Idle模式。OBU在资源池指定的时刻或者在立即发送告警信息，发送采用单播方式；对于空闲态OBU，需要先进入连接态后再发送告警信息。
如果发生资源冲突，则相应的OBU后退一段随机时间后重新选择资源池中的资源。
步骤S904，RSU广播转发告警信息；
其中，RSU根据资源的位置可以判断收到的信息是否为V2V/V2P告警信息；RSU采用小区广播或eMBMS方式发送告警信息，RSU覆盖内的OBU根据相关技术中的小区广播或eMBMS流程监听并接收所需的告警信息。
步骤S905，OBU选择资源用于发送V2V/V2P告警信息。
其中，OBU在用于V2V/V2P的资源池中选择资源，需要注意的是：用于V2V/V2P的资源池不同于步骤S901中的上报资源池，即V2V/V2P资源池用于PC5接口，步骤S901中的上报资源池用于上行Uu口。
如果采用D2D发现通告传输V2V/V2P告警信息，则OBU选择D2D发现通告资源用于发送V2V/V2P告警信息；如果采用D2D通信传输V2V/V2P告警信息，则OBU首先通过D2D通信控制信道发送控制信令，然后根据上述控制信令指示的位置发送V2V/V2P告警信息。发送通过广播或多播承载实现。
实施例二
本实施例是针对OBU采用RSU调度资源发送V2I告警信息的场景；图10是根据本发明可选实施例二的方法流程图，如图10所示，该方法的步骤包括：
步骤S1001，RSU广播指示信息。
其中，指示信息至少包括：告警信息上报指示。
步骤S1002，OBU判断是否需要上报告警信息，如果是，则转向步骤S1003，否则，转向步骤S1007。
其中，OBU根据RSU的指示判断是否需要上报告警信息给RSU，如果告警信息上报指示为真或者OBU检测到的事件满足RSU设定的上报条件，则OBU确定需要上报告警信息给RSU。
步骤S1003，OBU向RSU请求发送告警信息。
其中，OBU为RRC_Connected或RRC_Idle，如果为连接态，则OBU直接向RSU请求上报，如果为空闲态，则OBU通过随机接入过程向RSU请求上报。
步骤S1004，RSU给OBU分配上报告警信息的资源。
其中，RSU根据OBU的请求分配资源并指示资源给OBU。
步骤S1005，OBU向RSU上报告警信息。
其中，OBU采用分配到的资源向RSU上报告警信息。
步骤S1006，RSU广播发送告警信息。
其中，RSU根据资源的位置可以判断收到的信息是否为V2V/V2P告警信息；RSU采用小区广播或eMBMS方式发送告警信息，RSU覆盖内的OBU根据相关技术中的小区广播或eMBMS流程监听并接收所需的告警信息。
步骤S1007，OBU发送V2V/V2P告警信息。
其中，OBU在用于V2V/V2P的资源池中选择资源，需要说明的是，用于V2V/V2P的资源池不同于步骤S901中的上报资源池，即V2V/V2P资源池用于PC5接口，步骤S901中的上报资源池用于上行Uu口。
如果采用D2D发现通告传输V2V/V2P告警信息，则OBU选择D2D发现通告资源用于发送V2V/V2P告警信息；如果采用D2D通信传输V2V/V2P告警信息，则OBU首先通过D2D通信控制信道发送控制信令，然后根据上述控制信令指示的位置发送V2V/V2P告警信息。发送通过广播或多播承载实现。
实施例三
本实施例是针对采用eMBMS方式转发V2X告警信息的场景；图11是根据本发明可选实施例三的方法流程图，如图11所示，该方法的步骤包括：
步骤S1101，RSU广播指示信息。
其中，指示信息至少包括：告警信息上报指示、采用eMBMS方式转发；
采用eMBMS方式转发是指：OBU上报告警信息到业务中心，业务中心通过eMBMS架构转发告警信息。
步骤S1102，OBU判断是否上报告警信息给RSU，如果是，则转向步骤S1103，否则，转向步骤S1105。
其中，OBU根据RSU的指示判断是否需要上报告警信息给RSU，如果告警信息上报指示为真或者OBU检测到的事件满足RSU设定的上报条件，则OBU确定需要上报告警信息给RSU。
步骤S1103，OBU向业务中心发送告警信息。
OBU通过应用层数据向业务中心发送告警信息，业务中心为用于V2X业务的服务器，可对V2X业务内容进行分析处理和转发。
步骤S1104，业务中心通过eMBMS方式向OBU发送告警信息。
业务中心通过相关技术中的eMBMS承载向覆盖区域内的OBU转发告警信息，上述覆盖区域是指告警信息影响的区域，业务中心根据告警信息的内容确定覆盖区域。
OBU根据相关流程监听并接收所需的告警信息。
步骤S1105，OBU发送V2V/V2P告警信息。
其中，OBU在用于V2V/V2P的资源池中选择资源，需要注意的是：用于V2V/V2P的资源池不同于步骤S901中的上报资源池，即V2V/V2P资源池用于PC5接口，步骤S901中上报资源池用于上行Uu口。
如果采用D2D发现通告传输V2V/V2P告警信息，则OBU选择D2D发现通告资源用于发送V2V/V2P告警信息；如果采用D2D通信传输V2V/V2P告警信息，则OBU首先通过D2D通信控制信道发送控制信令，然后根据上述控制信令指示的位置发送V2V/V2P告警信息。发送通过广播或多播承载实现。
图12是根据本发明可选实施例的信息通知的系统的示意图，如图12所示，该系统包括：OBU 60、RSU 61以及eMBMS网元62；
其中，RSU 61设置为：广播指示信息，指示覆盖区域内的OBU 60自主选择资源，为OBU 60调度上报告警信息的资源，以及，接收告警信息和广播转发的告警信息；
OBU 60设置为：接收RSU 61广播的指示信息，判断是否需要上报告警信息，选择或请求资源发送告警信息，以及，接收RSU 61广播的告警信息；
eMBMS网元62设置为：转发告警信息，eMBMS网元包括：MCE、MBMS-GW以及BM-SC。
图13是根据本发明可选实施例的信息通知的OBU的示意图，如图13所示，该OBU包括：判断单元600、接收单元601以及发送单元602；
其中，
判断单元600设置为：判断是否需要上报告警信息；
接收单元601设置为：接收RSU广播的指示信息和RSU广播的告警信息，以及，接收RSU的资源分配指示信息；
发送单元602设置为：上报告警信息到RSU，以及发送告警信息发送请求给RSU。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述模块分别位于多个处理器中。
本发明实施例还提供了一种计算机可读存储介质。可选地，在本实施例中，上述计算机可读存储介质可以被设置为存储用于执行以下步骤的程序代码：
步骤S1：车联网中的OBU接收到RSU发送的告警指示信息；
步骤S2：在车联网中的OBU检测到告警信息时，检测到告警信息的OBU依据告警指示信息向RSU发送告警信息；
步骤S3：OBU接收RSU向其覆盖范围内的所有OBU发送的告警信息。
可选地，在本实施例中，上述计算机可读存储介质可以包括但不限于：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
可选地，本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例，本实施例在此不再赘述。
此外，本发明实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被执行时实现应用于RSU侧的车联网中告警信息的处理方法。
本领域的技术人员应该明白，上述的本申请的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某 些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本申请不限制于任何特定的硬件和软件结合。
以上所述仅为本申请的可选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。
工业实用性
本发明实施例提供一种车联网中告警信息的处理方法及装置，能够有效地提高V2X告警业务通知发送/接收的成功概率，解决相关技术中当OBU有告警业务需要发送给其他车辆或行人时，其他车辆或行人由于位置或者其他原因可能无法接收上述告警业务的信息，从而导致告警业务的信息发送不成功的问题。

Claims (11)

  1. 一种车联网中告警信息的处理方法，包括：
    路边单元RSU向车联网中的车载单元OBU发送告警指示信息；
    在车联网中的OBU检测到告警信息时，所述RSU接收所述检测到告警信息的OBU依据所述告警指示信息发送的所述告警信息；
    所述RSU向其覆盖范围内的OBU发送所述告警信息。
  2. 根据权利要求1所述的方法，其中，所述RSU接收所述检测到告警信息的OBU依据所述告警指示信息发送的所述告警信息包括：
    所述RSU接收所述述检测到告警信息的OBU通过车联网V2X应用服务器AS通过广播或单播方式发送的所述告警信息，其中，所述OBU通过应用层接口向所述V2X AS发送所述告警信息。
  3. 根据权利要求1所述的方法，其中，所述RSU向其覆盖范围内的OBU发送所述告警信息包括：
    所述RSU通过演进的多媒体广播多播业务eMBMS的方式或小区广播向其覆盖范围内的OBU发送所述告警信息。
  4. 根据权利要求1至3任一项所述的方法，其中，所述告警信息包括以下至少之一：车到车V2V告警信息、车到行人V2P告警信息。
  5. 根据权利要求1所述的方法，其中，所述告警指示信息用于指示所述OBU向RSU发送告警信息的条件，其中，所述条件包括以下至少之一：OBU位置、状态、时段、告警信息类别。
  6. 一种车联网中告警信息的处理方法，包括：
    车联网中的车载单元OBU接收到路边单元RSU发送的告警指示信息；
    在车联网中的OBU检测到告警信息时，所述检测到告警信息的OBU依据所述告警指示信息向所述RSU发送告警信息；
    所述OBU接收所述RSU向其覆盖范围内的OBU发送的所述告警信息。
  7. 一种车联网中告警信息的处理装置，位于路边单元RSU侧，包括：
    第一发送模块，设置为：向车联网中的车载单元OBU发送告警指示信息；
    第一接收模块，设置为：在车联网中的OBU检测到告警信息时，接收所述检测到告警信息的OBU依据所述告警指示信息发送的所述告警信息；
    第二发送模块，设置为：向所述RSU覆盖范围内的OBU发送所述告警信息。
  8. 根据权利要求7所述的装置，其中，所述第一接收模块是设置为：接收所述述检测到告警信息的OBU通过车联网V2X应用服务器AS通过广播或单播方式发送的所述告警信息，其中，所述OBU通过应用层接口向所述V2X AS发送所述告警信息。
  9. 根据权利要求7所述的装置，其中，所述第二发送模块是设置为：通过演进的多媒体广播多播业务eMBMS的方式或小区广播向所述RSU覆盖范围内的OBU发送所述告警信息。
  10. 根据权利要求7至9任一项所述的装置，其中，所述告警信息包括以下至少之一：车到车V2V告警信息、车到行人V2P告警信息。
  11. 一种车联网中告警信息的处理装置，位于车联网中的车载单元OBU侧，包括：
    第二接收模块，设置为：接收到路边单元RSU发送的告警指示信息；
    第三发送模块，设置为：在车联网中的OBU检测到告警信息时，依据所述告警指示信息向所述RSU发送告警信息；
    第三接收模块，设置为：接收所述RSU向其覆盖范围内的OBU发送的所述告警信息。
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