WO2023088008A1 - 一种信息解析方法及装置 - Google Patents

一种信息解析方法及装置 Download PDF

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Publication number
WO2023088008A1
WO2023088008A1 PCT/CN2022/125629 CN2022125629W WO2023088008A1 WO 2023088008 A1 WO2023088008 A1 WO 2023088008A1 CN 2022125629 W CN2022125629 W CN 2022125629W WO 2023088008 A1 WO2023088008 A1 WO 2023088008A1
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network device
speed information
time
speed
application layer
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PCT/CN2022/125629
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English (en)
French (fr)
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孙继忠
陈亮
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华为技术有限公司
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Publication of WO2023088008A1 publication Critical patent/WO2023088008A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0289Congestion control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/40Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]

Definitions

  • the present application relates to the field of communication technologies, and in particular to an information analysis method and device in a wireless communication system.
  • vehicle-to-vehicle Vehicle to Vehicle
  • V2V vehicle-to-vehicle to Vehicle
  • V2X vehicle-to-everything
  • V2X vehicle-to-infrastructure
  • V2I vehicle-to-Infrastructure
  • the vehicle-road coordination system is also a kind of vehicle networking system, which usually includes network equipment and terminal equipment.
  • the network equipment can be a roadside unit (Road Side Unit, RSU), and the terminal equipment can be an on-board unit (On board Unit, OBU).
  • RSU can be deployed at urban intersections or highway sections, and OBU can be installed on vehicles.
  • RSU can receive and parse messages sent by OBU, such as Basic Safety Message (BSM) and Sensor Sharing Message (SSM).
  • BSM Basic Safety Message
  • SSM Sensor Sharing Message
  • RSU With the popularization of OBU and the increase of RSU coverage, RSU needs to process a large amount of information from OBU, which may even exceed the processing capacity of RSU and cause congestion. Therefore, a solution is needed to solve the problem of RSU information processing congestion.
  • the present application provides an information parsing method and device for solving the problem of information processing congestion of network equipment.
  • an information analysis method including:
  • the network device determines the speed information corresponding to the first application layer message of the first terminal device
  • the network device determines a first resolution time interval according to the speed information
  • the network device parses the first application layer message from the first terminal device according to the first parsing time interval.
  • an information analysis method including:
  • Network equipment determines the number of terminal equipment or resource utilization
  • the network device determines the value of variable K according to the number of terminal devices or resource utilization, and K is an integer greater than or equal to 2;
  • the network device sequentially parses the information corresponding to the kth time subunit of the kth time unit in consecutive K time units, wherein each time unit includes K time subunits, k is greater than or equal to 1 and Less than or equal to K.
  • a network device including:
  • a first determining unit configured to determine speed information corresponding to the first application layer message of the first terminal device
  • a second determining unit configured to determine a first analysis time interval according to the speed information
  • a parsing unit configured to parse the information of the first application layer message from the first terminal device according to the first parsing time interval.
  • a network device including:
  • a first determining unit configured to determine the number of terminal devices or resource utilization
  • the second determining unit is configured to determine the value of the variable K according to the number of terminal devices or resource utilization, where K is an integer greater than or equal to 2;
  • the analysis unit is used to sequentially analyze the information corresponding to the kth time subunit of the kth time unit in consecutive K time units, wherein each time unit includes K time subunits, and k is greater than or equal to 1 And less than or equal to K.
  • the network device can determine the parsing time interval according to the speed information corresponding to the service of the terminal device, so as to avoid congestion of the network device.
  • the units in the communication device described in the above aspects may be implemented by software, or hardware, or a combination of software and hardware.
  • the communication device described in the above aspects includes one or more processors, and one or more memories, and the memory stores information that can be executed by the one or more processors.
  • An instruction or agent when the instruction or code is executed, the communication device executes the method described in the above aspects.
  • Yet another aspect of the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the computer-readable storage medium is run on a computer, it causes the computer to execute the methods described in the above aspects.
  • Yet another aspect of the present application provides a computer program product containing instructions, which, when run on a computer, causes the computer to execute the methods described in the above aspects.
  • FIG. 1 is a schematic structural diagram of a possible V2X system for implementing an embodiment of the present application
  • Fig. 2 is a schematic diagram of a protocol stack of an embodiment of the present application
  • Fig. 3 is a kind of data processing schematic diagram of the embodiment of the present application.
  • FIG. 4 is a flowchart of an information analysis method according to an embodiment of the present application.
  • FIG. 5 is a flowchart of another information analysis method according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of time unit information analysis according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of another time unit information analysis according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • Figure 1 shows a basic structure of a V2X network. Including RSU, OBU, V2X server/traffic management platform and perception fusion node.
  • FIG. 2 shows the protocol stack layered structure of RSU/OBU V2X.
  • the protocol stack includes an application layer, a network layer, and an access layer (which may be the long-term evolution LTE-V2X access layer).
  • the network layer includes a management sublayer and a data sublayer.
  • the management sublayer includes Dedicated Entity Management (Dedicated Entity Management);
  • the data sublayer includes Dedicated Short Message Protocol (Dedicated Short Message Protocol, DSMP), Transmission Control Protocol (Transmission Control Protocol, TCP) / User Datagram Protocol (User Datagram Protocol) Protocol, UDP), Internet protocol (Internet Protocol, IP), adaptation layer (Adaptation Layer); access layer includes cellular communication interface Uu, direct connection communication interface PC5.
  • FIG. 3 shows a layer-by-layer packaging process of data. Each layer performs data encapsulation for requests to the next layer.
  • the access layer header (Header), the adaptation layer Header, and the DSMP Header represent different transmission primitives.
  • the DSMP header contains version (version), DSMP Extension Indicator (DSMP Extension Indicator), reserved (Reserved), extension (Extension), application identifier (Application Identifier, AID), length (length) and other information; the adaptation layer header contains protocol Type (Protocol Type) information.
  • the AID in the DSMP header can be used to distinguish the service corresponding to the data sent by the terminal device.
  • Table 1 gives an example of an AID.
  • the network device may be an RSU, or a base station, a relay station, or other devices with wireless transceiver functions.
  • Terminal equipment can also be called user equipment, terminal, mobile station, etc., specifically, it can be OBU, vehicle, or handheld device with wireless communication function, vehicle-mounted device, wearable device, computing device or other processing device connected to a wireless modem, etc. .
  • User equipment can be called by different names in different networks, such as: terminal, mobile station, subscriber unit, station, cellular phone, personal digital assistant, wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, etc. .
  • the embodiment of the present application provides an information parsing method, including:
  • Step 401 the network device determines the speed information corresponding to the first application layer message of the first terminal device.
  • the network device determines the speed information corresponding to the device identifier of the first terminal device; the network device determines the speed information as the first application according to the device identifier and the application identifier of the first application layer message Velocity information for layer messages.
  • one application layer message may correspond to one or more service flows, and one service flow may correspond to one or one kind of service.
  • the first application layer message may be a message related to the first service or the first service flow.
  • the device identifier of the first terminal device may be a source address (source address, SRC), and the device identifier may also be a device ID.
  • the application identifier of the first application layer message includes an application identifier AID, and the AID can be used to identify a service or a service flow.
  • the network device can first determine the speed information of the terminal device according to the SRC, and then match the AID of a certain service with the SRC. If the matching is successful, the speed information corresponding to the service of the terminal device is determined.
  • the speed information is carried in a first application layer message sent by the first terminal device.
  • the network device parses the first application layer message sent by the terminal device at the application layer, and obtains the speed information of the terminal device from the content of the message. If the message does not carry speed information, the network device can calculate the average speed within the time period according to the time and location when the terminal device sends the information twice.
  • the network device can also measure the speed and position of a terminal device through radar, and then determine the position of the terminal device according to the message sent by the terminal device.
  • the two position information can be matched to determine the terminal device's location.
  • the network device determines the speed of the terminal device, it can be calculated according to a certain time interval, or can be calculated in real time.
  • Step 402 the network device determines a first resolution time interval according to the speed information.
  • the network device determines a speed interval corresponding to the speed information, and determines the first parsing time interval corresponding to the speed interval, where one speed interval corresponds to one parsing time interval.
  • Each speed range can be defined by a speed threshold (speedThr).
  • multiple speed levels can be predefined or speed level information can be configured through network configuration, service platform configuration, and local configuration (such as configuration through WiFi, direct connection, etc.), and each speed level corresponds to a speed range , each speed interval corresponds to an analysis time interval, the higher the speed corresponding to the speed interval, the shorter the analysis time interval.
  • network device determines the speed corresponding to a certain service of the terminal device, a corresponding speed interval is determined, and then the analysis time interval is determined according to the speed interval.
  • Table 2 gives an example of a speed grade.
  • Four speed levels are predefined, and each speed level corresponds to a speed range and analysis time interval.
  • each speed level corresponds to a speed range and analysis time interval.
  • the network device determines that the speed corresponding to a certain service is in the speed range corresponding to the speed level 2, it determines that the resolution time interval is 500 ms.
  • Table 2 only gives an example, and the division of specific speed levels and the determination of the analysis time interval can be flexibly determined according to actual scenarios.
  • Step 403 the network device parses the first application layer message from the first terminal device according to the first parsing time interval.
  • messages during the parsing time interval may be discarded.
  • the network device may not parse the content of the message corresponding to an AID at the application layer.
  • optional, specific analysis strategies such as speed intervals, analysis time intervals, etc.
  • a service platform such as a V2X server or a perception fusion node
  • a network device requests the service platform, etc. .
  • the network device may determine the parsing time interval according to the speed information corresponding to the service of the terminal device, so as to avoid congestion of the network device. It can not only ensure that the information of high-speed terminal equipment can be parsed in time, but also reduce the amount of parsed information in congestion scenarios to prevent congestion.
  • the resource utilization is the CPU utilization of the central processing unit of the network device.
  • the embodiment of the present application provides an information analysis method, including:
  • Step 501 the network device determines the number of terminal devices or resource utilization.
  • the network device counts the number of terminal devices through source address SRC information in the MAC header of the media access control.
  • the SRC is used to perform statistics at the application layer or the adaptation layer.
  • Step 502 the network device determines the value of a variable K according to the number of terminal devices or resource utilization, where K is an integer greater than or equal to 2.
  • the network device determines a class interval corresponding to the number of terminal devices or resource utilization, and determines a K value corresponding to the class interval, where each class interval corresponds to a K value.
  • Table 3 and Table 4 respectively provide an example of the corresponding relationship between the number of terminals, CPU utilization and K value.
  • the value of K may be 1, that is, all network device resolutions come from Information about the terminal device. For example, as shown in Table 5 and Table 6.
  • Step 503 the network device sequentially parses the information corresponding to the kth time subunit of the kth time unit in consecutive K time units, wherein each time unit includes K time subunits, and k is greater than Equal to 1 and less than or equal to K.
  • the information parsed in a time subunit may be information sent by all terminal devices covered by the network device.
  • the time unit can be flexibly determined according to actual application scenarios.
  • the network device may perform the above parsing steps in a loop. That is, after the above K time units, the information corresponding to the kth time subunit of the kth time unit is sequentially analyzed.
  • one time unit may be 1000 ms.
  • each time unit of 1000 ms may include K time subunits of equal length.
  • each time unit includes two time subunits of 500 ms: the first time subunit A and the second time subunit B.
  • the network device parses the information corresponding to the time subunit A in the first 1000ms, and parses the information corresponding to the time subunit B in the second 1000ms.
  • the above parsing steps may be executed cyclically, that is, within any subsequent continuous 2000ms, the information corresponding to the time subunit A is parsed in the first 1000ms, and the information corresponding to the time subunit B is parsed in the second 1000ms.
  • one time unit is 400 ms.
  • each time unit includes four 100ms time subunits: the first time subunit A, the second time subunit B, the second time subunit Three time subunit C and fourth time subunit D.
  • the network device parses the information corresponding to time subunit A in the first time unit, parses the information corresponding to time subunit B in the second time unit, and parses the information in the third time unit For the information corresponding to time subunit C, analyze the information corresponding to time subunit D in the fourth time unit.
  • the above parsing steps can be executed cyclically, that is, within any subsequent continuous 1600ms, parse the information corresponding to time subunit A in the first time unit, and parse the information corresponding to time subunit B in the second time unit For information, analyze the information corresponding to the time subunit C in the third time unit, and analyze the information corresponding to the time subunit D in the fourth time unit.
  • the specific analysis strategy such as the size of the time unit, the division of the grade interval, the analysis method of the time sub-unit, etc.
  • a service platform such as a V2X server or a perception fusion node
  • the network device requests to the service platform, etc.
  • the analysis time period is determined by the number of terminal devices or CPU utilization, and only information in a part of the time period is analyzed, which reduces the information processing capacity of the network device.
  • solutions corresponding to the above two embodiments may be used in combination.
  • the above solution may also be partially or completely applied to terminal equipment.
  • the embodiment of the present application also provides a corresponding communication device (sometimes also referred to as a communication device), and the communication device includes a corresponding module or module for executing each part in the above embodiment. unit.
  • the modules or units may be software, or hardware, or a combination of software and hardware.
  • the present application provides a network device, referring to FIG. 8 , including:
  • the first determining unit is configured to determine speed information corresponding to the first application layer message of the first terminal device.
  • the second determining unit is configured to determine the first analysis time interval according to the speed information.
  • a parsing unit configured to parse information of the first application layer message from the first terminal device according to the first parsing time interval.
  • the foregoing network device may also be implemented by other structures, for example, by a processor cooperating with a memory, or cooperating with a transceiver.
  • the present application provides a network device, referring to FIG. 9 , including:
  • the first determining unit is configured to determine the number of terminal devices or resource utilization.
  • the second determination unit is configured to determine the value of the variable K according to the number of terminal devices or the resource utilization rate, where K is an integer greater than or equal to 2.
  • the analysis unit is used to sequentially analyze the information corresponding to the kth time subunit of the kth time unit in consecutive K time units, wherein each time unit includes K time subunits, and k is greater than or equal to 1 And less than or equal to K.
  • the foregoing network device may also be implemented by other structures, for example, by a processor cooperating with a memory, or cooperating with a transceiver.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, all or part of the processes or functions according to the embodiments of the present invention will be generated.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server, or data center by wired (eg, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, or a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk SSD) and the like.

Abstract

本申请实施例提供了一种信息解析方法,包括:网络设备确定第一终端设备的第一应用层消息对应的速度信息;所述网络设备根据所述速度信息确定第一解析时间间隔;所述网络设备按照所述第一解析时间间隔解析来自于所述第一终端设备的第一应用层消息。上述方案中,网络设备可以根据终端设备的业务对应的速度信息,确定解析时间间隔,避免网络设备出现拥塞。

Description

一种信息解析方法及装置
本申请要求于2021年11月16日提交国家知识产权局,申请号为202111351631.4、申请名称为“一种信息解析方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域,尤其涉及无线通信系统中的信息解析方法及装置。
背景技术
随着移动通信的发展,出现了各种车联网通信方式,例如,车辆到车辆(Vehicle to Vehicle,V2V)通信,车与万物(Vehicle-to-Everything,V2X)通信,车与基础设施(Vehicle-to-Infrastructure,V2I)通信等。车路协同系统也属于车联网系统的一种,通常包括网络设备和终端设备,网络设备可以是路侧设备(Road Side Unit,RSU),终端设备可以是车载单元(On board Unit,OBU)。RSU可以部署在城市路口或者高速路段,OBU可以装置在车辆上。RSU可以接收并解析OBU发送的消息,例如基本安全消息(Basic Safety Message,BSM)和感知共享消息(Sensor Sharing Message,SSM)等。
随着OBU的普及RSU覆盖范围的增大,RSU需要处理大量来自OBU的信息,甚至超出RSU处理能力造成拥塞。因此,需要一种方案来解决RSU信息处理拥塞问题。
发明内容
本申请提供了一种信息解析方法及装置,用于解决网络设备的信息处理拥塞问题。
第一方面,提供了一种信息解析方法,包括:
网络设备确定第一终端设备的第一应用层消息对应的速度信息;
所述网络设备根据所述速度信息确定第一解析时间间隔;
所述网络设备按照所述第一解析时间间隔解析来自于所述第一终端设备的第一应用层消息。
第二方面,提供了一种信息解析方法,包括:
网络设备确定终端设备数量或资源利用率;
所述网络设备根据所述终端设备数量或资源利用率确定变量K的值,K为大于等于2的整数;
所述网络设备在连续的K个时间单元内,依次解析第k个时间单元的第k个时间子单元对应的信息,其中每个所述时间单元包括K个时间子单元,k大于等于1且小于等于K。
第三方面,提供了一种网络设备,包括:
第一确定单元,用于确定第一终端设备的第一应用层消息对应的速度信息;
第二确定单元,用于根据所述速度信息确定第一解析时间间隔;
解析单元,用于按照所述第一解析时间间隔解析来自于所述第一终端设备的第一 应用层消息的信息。
第四方面,提供了一种网络设备,包括:
第一确定单元,用于确定终端设备数量或资源利用率;
第二确定单元,用于根据所述终端设备数量或资源利用率确定变量K的值,K为大于等于2的整数;
解析单元,用于在连续的K个时间单元内,依次解析第k个时间单元的第k个时间子单元对应的信息,其中每个所述时间单元包括K个时间子单元,k大于等于1且小于等于K。
上述方案中,网络设备可以根据终端设备的业务对应的速度信息,确定解析时间间隔,避免网络设备出现拥塞。
上述各方面所述的通信装置中的单元可以通过软件、或者硬件、或者软硬结合来实现。
在一种可能的实现方式中,上述各方面所述的通信装置,包括一个或多个处理器,以及一个或多个存储器,所述存储器上存储有可被所述一个或多个处理器执行的指令或代理,当所述指令或代码被运行使得所述通信装置执行上述各方面所述的方法。
本申请的又一方面提供了一种计算机可读存储介质,所述计算机可读存储介质中存储有指令,当其在计算机上运行时,使得计算机执行上述各方面所述的方法。
本申请的又一方面提供了一种包含指令的计算机程序产品,当其在计算机上运行时,使得计算机执行上述各方面所述的方法。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍。
图1为实现本申请实施例的一种可能的V2X系统结构示意图;
图2为本申请实施例的一种协议栈示意图;
图3为本申请实施例的一种数据处理示意图;
图4为本申请实施例的一种信息解析方法流程图;
图5为本申请实施例的另一种信息解析方法流程图;
图6为本申请实施例的一种时间单元信息解析示意图;
图7为本申请实施例的另一种时间单元信息解析示意图;
图8为本申请实施例的一种网络设备结构示意图;
图9为本申请实施例的一种网络设备结构示意图;
具体实施方式
下面结合附图,对本申请提供的实施例做详细说明。本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案,并不构成对于本申请实施例提供的技术方案的限定,本领域普通技术人员可知,随着网络架构的演变和新业务场景的出现,本申请实施例提供的技术方案对于类似的技术问题,同样适用。
为了更清楚的描述本申请实施例的方案,下文首先对V2X系统的一些基本概念做简要说明。
图1示出了一种V2X网络的基本结构。包括RSU、OBU、V2X服务器/交管平台和感知融合节点。
图2示出了RSU/OBU V2X的协议栈分层结构。该协议栈包含应用层,网络层,接入层(可以是长期演进LTE-V2X接入层)。其中网络层包括管理子层和数据子层。其中,管理子层包括专用实体管理(Dedicated Entity Management);数据子层包括专用 短消息协议(Dedicated Short Message Protocol,DSMP),传输控制协议(Transmission Control Protocol,TCP)/用户数据报协议(User Datagram Protocol,UDP),互联网协议(Internet Protocol,IP),适配层(Adaptation Layer);接入层包括蜂窝通信接口Uu,直联通信接口PC5。
图3示出了数据data逐层打包流程。每一层向下一层请求(request)进行数据封装。接入层头(Header),适配层Header,DSMP Header,分别代表不同传输原语。DSMP头包含版本(version),DSMP扩展指示(DSMP Extension Indicator),保留(Reserved),扩展(Extension),应用标识(Application Identifier,AID),长度(length)等信息;适配层头中包含协议类型(Protocol Type)信息。
DSMP头中的AID可以用来区分终端设备发送的数据对应的业务。表1给出了一种AID举例。
表1
Figure PCTCN2022125629-appb-000001
本申请实施例中,网络设备可以是RSU,也可以是基站,中继站,或其他具有无线收发功能的设备。终端设备也可以称为用户设备,终端,移动台等,具体可以是OBU,车辆,或者具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备等。在不同的网络中用户设备可以叫做不同的名称,例如:终端,移动台,用户单元,站台,蜂窝电话,个人数字助理,无线调制解调器,无线通信设备,手持设备,膝上型电脑,无绳电话等。
实施例一
参考图4,本申请实施例提供了一种信息解析方法,包括:
步骤401、网络设备确定第一终端设备的第一应用层消息对应的速度信息。
可选的,网络设备确定第一终端设备的设备标识对应的速度信息;网络设备根据所述设备标识与所述第一应用层消息的应用标识,将所述速度信息确定为所述第一应用层消息的速度信息。
可选的,一个应用层消息可以对应一个或多个业务流,一个业务流可以对应一个或一种业务。第一应用层消息可以是第一业务或第一业务流相关的消息。
可选的,所述第一终端设备的设备标识可以是源地址(source address,SRC),设备标识也可以是设备ID。所述第一应用层消息的应用标识包括应用标识AID,AID可以用来标识一个业务或业务流。网络设备可以先根据SRC确定终端设备的速度信息,再将某个业务的AID与SRC匹配,匹配成功即确定了该终端设备的该业务对应的速度信息。
可选的,所述速度信息携带在所述第一终端设备发送的第一应用层消息中。例如,网络设备在应用层解析终端设备发送的第一应用层消息,从消息内容中获得终端设备速度信息。如果消息中不携带速度信息,网络设备可以根据终端设备发送两次信息的时间和位置,计算该时间段内的平均速度。
可选的,网络设备的也可以通过雷达测出一个终端设备的速度和位置,再根据该终端设备发送的消息确定出该终端设备的位置,两个位置信息进行匹配即可确定该终端设备的设备ID或AID,以及速度信息。
网络设备确定终端设备速度时,可以按照一定时间间隔计算,也可以实时计算。
步骤402、所述网络设备根据所述速度信息确定第一解析时间间隔。
可选的,所述网络设备确定所述速度信息对应的速度区间,并确定所述速度区间对应的所述第一解析时间间隔,其中,一个速度区间对应一个解析时间间隔。每个速度区间可以通过速度门限(speedThr)来定义。
可选的,可以预定义多个速度等级或者通过网络配置,服务平台配置,近端配置(例如通过WiFi、直连等方式配置)等方式来配置速度等级信息,每个速度等级对应一个速度区间,每个速度区间对应一个解析时间间隔,速度区间对应的速度越高,解析时间间隔越短。当网络设备确定出终端设备的某个业务对应的速度后,对应确定出一个速度区间,再根据速度区间确定出解析时间间隔。
表2给出了一个速度等级示例。预先定义了4个速度等级,每个速度等级对应一个速度区间和解析时间间隔。例如,当网络设备确定出某个业务对应的速度处于速度等级2对应的速度区间,则确定解析时间间隔为500ms。表2中仅仅给出了一种示例,具体速度等级的划分和解析时间间隔的确定可以根据实际场景灵活确定。
表2
Figure PCTCN2022125629-appb-000002
Figure PCTCN2022125629-appb-000003
步骤403、所述网络设备按照所述第一解析时间间隔解析来自于所述第一终端设备的第一应用层消息。
可选的,对于解析时间间隔期间的消息可以进行丢弃处理。例如,网络设备可以在应用层对对应一个AID的消息不解析其内容。
本实施例中,可选的,具体解析策略,例如速度区间,解析时间间隔等,可以预先定义,也可以通过服务平台(例如V2X服务器或者感知融合节点)配置,或者网络设备向服务平台请求等。
上述实施例中,网络设备可以根据终端设备的业务对应的速度信息,确定解析时间间隔,避免网络设备出现拥塞。既能保证高速终端设备的信息能及时解析,也能在拥堵场景下减少解析信息的量防止拥塞。
可选,所述资源利用率为所述网络设备的中央处理器CPU利用率。
实施例二
参考图5,本申请实施例提供了一种信息解析方法,包括:
步骤501、网络设备确定终端设备数量或资源利用率。
可选的,所述网络设备通过媒体接入控制MAC头中的源地址SRC信息统计终端设备数量。或者在应用层或适配层通过SRC来进行统计。
步骤502、所述网络设备根据所述终端设备数量或资源利用率确定变量K的值,K为大于等于2的整数。
可选的,所述网络设备确定所述终端设备数量或资源利用率对应的等级区间,并确定所述等级区间对应的K的值,其中,每个等级区间对应一个K的值。
表3和表4分别给出了一种终端数量及CPU利用率与K值的对应关系示例。
表3
终端数量等级区间 K值
终端数量<=数量门限1 2
(数量门限1,数量门限2] 4
>=数量门限3 5
表4
CPU利用率等级区间 K值
CPU利用率<=利用率门限1 2
(利用率门限1,利用率门限2] 4
>=利用率门限3 5
可选的,在CPU利用率较低(例如低于一个CPU利用率门限),或者终端数量较少(例如低于一个数量门限)时,K的值可以是1,即网络设备解析全部来自于终端设备的信息。例如表5和表6所示。
表5
终端数量等级区间 K值
终端数量<=数量门限1 1
(数量门限1,数量门限2] 2
>=数量门限3 4
表6
CPU利用率等级区间 K值
CPU利用率<=利用率门限1 1
(利用率门限1,利用率门限2] 2
>=利用率门限3 4
步骤503、所述网络设备在连续的K个时间单元内,依次解析第k个时间单元的第k个时间子单元对应的信息,其中每个所述时间单元包括K个时间子单元,k大于等于1且小于等于K。
可选的,在一个时间子单元解析的信息可以是所述网络设备覆盖的所有终端设备发送的信息。
可选的,时间单元可以根据实际应用场景灵活确定。
可选的,网络设备可以循环执行上述解析步骤。即,在上述K个时间单元之后的K个时间单元,再依次解析第k个时间单元的第k个时间子单元对应的信息。
例如,参考图6,一个时间单元可以是1000ms。当网络设备确定了K值后,每个时间单元1000ms可以包括K个等长的时间子单元。例如,K值为2时,k∈{1,2},每个时间单元包括2个500ms的时间子单元:第一时间子单元A和第二时间子单元B。网络设备在连续的2000ms(1000ms*2)内,第一个1000ms解析时间子单元A对应的信息,第二个1000ms解析时间子单元B对应的信息。可选的,上述解析步骤可以循环执行,即在后续的任一连续2000ms内,在第一个1000ms解析时间子单元A对应的信息,第二个1000ms解析时间子单元B对应的信息。
例如,参考图7,一个时间单元是400ms。当网络设备确定K值为4时,k∈{1,2,3,4},每个时间单元包括4个100ms的时间子单元:第一时间子单元A、第二时间子单元B、第三时间子单元C和第四时间子单元D。网络设备在连续的1600ms(400ms*4)内,在第一个时间单元解析时间子单元A对应的信息,在第二个时间单元解析时间子单元B对应的信息,在第三个时间单元解析时间子单元C对应的信息,在第四个时间单元解析时间子单元D对应的信息。可选的,上述解析步骤可以循环执行,即在后续的任一连续的1600ms内,在第一个时间单元解析时间子单元A对应的信息,在第二个时间单元解析时间子单元B对应的信息,在第三个时间单元解析时间子单元C对应的信息,在第四个时间单元解析时间子单元D对应的信息。
本实施例中,可选的,具体解析策略,例如时间单元的大小,等级区间的划分,时间子单元的解析方法等,可以预先定义,也可以通过服务平台(例如V2X服务器或者感知融合节点)配置,或者网络设备向服务平台请求等。
上述实施例中,通过终端设备数量或CPU利用率确定解析时间段,仅解析部分时间段的信息,降低了网络设备的信息处理量。
可选的,上述两个实施例对应的方案,可以结合使用。上述方案也可以部分或全部应用于终端设备。
相应于上述方法实施例给出的方法,本申请实施例还提供了相应的通信装置(有时也称为通信设备),所述通信装置包括用于执行上述实施例中每个部分相应的模块 或单元。所述模块或单元可以是软件,也可以是硬件,或者是软件和硬件结合。下文装置实施例中,仅简要给出了方案关键特征,具体细节可参考前文方法实施例,后文不再赘述。
对应实施例一,本申请提供了一种网络设备,参考图8,包括:
第一确定单元,用于确定第一终端设备的第一应用层消息对应的速度信息。
第二确定单元,用于根据所述速度信息确定第一解析时间间隔。
解析单元,用于按照所述第一解析时间间隔解析来自于所述第一终端设备的第一应用层消息的信息。
上述网络设备也可以通过其他结构实现,例如通过处理器配合存储器,或者配合收发器实现。
对应实施例二,本申请提供了一种网络设备,参考图9,包括:
第一确定单元,用于确定终端设备数量或资源利用率。
第二确定单元,用于根据所述终端设备数量或资源利用率确定变量K的值,K为大于等于2的整数。
解析单元,用于在连续的K个时间单元内,依次解析第k个时间单元的第k个时间子单元对应的信息,其中每个所述时间单元包括K个时间子单元,k大于等于1且小于等于K。
上述网络设备也可以通过其他结构实现,例如通过处理器配合存储器,或者配合收发器实现。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时,全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质,(例如,软盘、硬盘、磁带)、光介质(例如,DVD)、或者半导体介质(例如固态硬盘SSD)等。

Claims (20)

  1. 一种信息解析方法,其特征在于,包括:
    网络设备确定第一终端设备的第一应用层消息对应的速度信息;
    所述网络设备根据所述速度信息确定第一解析时间间隔;
    所述网络设备按照所述第一解析时间间隔解析来自于所述第一终端设备的第一应用层消息。
  2. 根据权利要求1所述的方法,所述网络设备确定第一终端设备的第一应用层消息对应的速度信息包括:
    所述网络设备确定所述第一终端设备的设备标识对应的速度信息;
    所述网络设备根据所述设备标识与所述第一应用层消息的应用标识,将所述速度信息确定为所述第一应用层消息的速度信息。
  3. 根据权利要求2所述的方法,所述速度信息携带在所述第一应用层消息中。
  4. 根据权利要求1所述的方法,所述网络设备根据所述速度信息确定第一解析时间间隔包括:
    所述网络设备确定所述速度信息对应的速度区间,并确定所述速度区间对应的所述第一解析时间间隔,其中,一个速度区间对应一个解析时间间隔。
  5. 根据权利要求1所述的方法,所述第一终端设备的设备标识包括源地址SRC。
  6. 根据权利要求1所述的方法,所述第一应用层消息的应用标识包括应用标识AID。
  7. 一种信息解析方法,其特征在于,包括:
    网络设备确定终端设备数量或资源利用率;
    所述网络设备根据所述终端设备数量或资源利用率确定变量K的值,K为大于等于2的整数;
    所述网络设备在连续的K个时间单元内,依次解析第k个时间单元的第k个时间子单元对应的信息,其中每个所述时间单元包括K个时间子单元,k大于等于1且小于等于K。
  8. 根据权利要求7所述的方法,网络设备确定终端设备数量包括:
    所述网络设备通过媒体接入控制MAC头中的源地址SRC信息统计终端设备数量。
  9. 根据权利要求7所述的方法,其特征在于,所述网络设备根据所述终端设备数量或资源利用率确定变量K的值包括:
    所述网络设备确定所述终端设备数量或资源利用率对应的等级区间,并确定所述等级区间对应的K的值,其中,每个等级区间对应一个K的值。
  10. 根据权利要求7所述的方法,所述资源利用率为所述网络设备的中央处理器CPU利用率。
  11. 一种网络设备,其特征在于,包括:
    第一确定单元,用于确定第一终端设备的第一应用层消息对应的速度信息;
    第二确定单元,用于根据所述速度信息确定第一解析时间间隔;
    解析单元,用于按照所述第一解析时间间隔解析来自于所述第一终端设备的第一应用层消息的信息。
  12. 根据权利要求11所述的网络设备,第一确定单元,具体用于:
    确定所述第一终端设备的设备标识对应的速度信息;
    根据所述设备标识与所述第一应用层消息的应用标识,将所述速度信息确定为所述第一应用层消息的速度信息。
  13. 根据权利要求12所述的网络设备,所述速度信息携带在所述第一应用层消息中。
  14. 根据权利要求11所述的网络设备,所述第二确定单元,具体用于:
    确定所述速度信息对应的速度区间,并确定所述速度区间对应的所述第一解析时间间隔,其中,一个速度区间对应一个解析时间间隔。
  15. 根据权利要求11所述的网络设备,所述第一终端设备的设备标识包括源地址SRC。
  16. 根据权利要求11所述的网络设备,所述第一应用层消息的应用标识包括应用标识AID。
  17. 一种网络设备,其特征在于,包括:
    第一确定单元,用于确定终端设备数量或资源利用率;
    第二确定单元,用于根据所述终端设备数量或资源利用率确定变量K的值,K为大于等于2的整数;
    解析单元,用于在连续的K个时间单元内,依次解析第k个时间单元的第k个时间子单元对应的信息,其中每个所述时间单元包括K个时间子单元,k大于等于1且小于等于K。
  18. 根据权利要求17所述的网络设备,第一确定单元具体用于:
    通过媒体接入控制MAC头中的源地址SRC信息统计终端设备数量。
  19. 根据权利要求17中的网络设备,其特征在于,所述第二确定单元具体用于:
    确定所述终端设备数量或资源利用率对应的等级区间,并确定所述等级区间对应的K的值,其中,每个等级区间对应一个K的值。
  20. 根据权利要求17所述的网络设备,所述资源利用率为所述网络设备的中央处理器CPU利用率。
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