WO2016138649A1 - 一种通信方法及相关设备 - Google Patents

一种通信方法及相关设备 Download PDF

Info

Publication number
WO2016138649A1
WO2016138649A1 PCT/CN2015/073654 CN2015073654W WO2016138649A1 WO 2016138649 A1 WO2016138649 A1 WO 2016138649A1 CN 2015073654 W CN2015073654 W CN 2015073654W WO 2016138649 A1 WO2016138649 A1 WO 2016138649A1
Authority
WO
WIPO (PCT)
Prior art keywords
parameter
network
system communication
vehicle device
periodic state
Prior art date
Application number
PCT/CN2015/073654
Other languages
English (en)
French (fr)
Inventor
施艺
熊新
赵振山
李明超
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2015/073654 priority Critical patent/WO2016138649A1/zh
Priority to EP15883706.2A priority patent/EP3253085A4/en
Priority to CN201580049772.7A priority patent/CN107079265A/zh
Publication of WO2016138649A1 publication Critical patent/WO2016138649A1/zh
Priority to US15/694,526 priority patent/US20170367005A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0289—Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • 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
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a communication method and related devices.
  • the European Internet of Vehicles defines the Distributed Congestion Control (DCC) in ETSI (European Telecommunications Standards Institution) TS 102 687. Specifically, the vehicle periodically monitors the CBR (Channel Busy Ratio) of the three channels on the Gigabit ITS (Intelligent Transport System) G5A, and configures according to the monitored CBR value and the current DCC parameters. State transitions are made for each channel.
  • DCC Distributed Congestion Control
  • the European DCC mechanism provides a distributed congestion control algorithm. Each vehicle maintains a channel state transition by locally sensing the busyness of its surrounding transmission channels, and dynamically adjusts the split ratio of its security messages on each channel. This technique has the following disadvantages:
  • the DCC stipulates that the vehicle can perform channel state transition and congestion control independently through the local monitoring channel. Therefore, the accuracy of the vehicle channel monitoring module will directly affect the effectiveness of congestion control. The wrong judgment of a car on the busy channel will directly affect the accuracy of the measured channel state of the surrounding vehicle, which will directly affect the performance of the system;
  • the relevant channel state transition parameter settings of the DCC mechanism are directly related to the performance of the DCC mechanism. Improper parameter settings can cause the vehicle to oscillate back and forth between different channel states, increasing system instability. Moreover, the performance of the overall congestion control of the system also requires detailed fine-tuning of the DCC parameters, and the mechanism is complicated;
  • the communication resource for transmitting CAM (Cooperative-Awareness Message) messages in the European Internet of Vehicles is a fixed 30M band of ITS-G5A. When all channels are in a congested state, some of the offloaded CAM messages are discarded, resulting in failure to meet the application layer. demand. This directly affects the timeliness of vehicle safety message intercommunication and creates safety hazards.
  • the embodiment of the invention provides a communication method and related equipment, which can effectively alleviate the network congestion problem in the vehicle network.
  • a first aspect of the present invention provides a communication method, including:
  • the in-vehicle device determines configuration information, where the configuration information includes a first periodic state message sending parameter and a reporting trigger condition of the network congestion measurement event;
  • a network congestion indication parameter Determining, by the in-vehicle device, a network congestion indication parameter, where the network congestion indication parameter is used to indicate a congestion level of a network environment where the in-vehicle device is located;
  • the in-vehicle device When the network congestion indication parameter satisfies the reporting triggering condition of the network congestion measurement event, the in-vehicle device reports network congestion information to the base station;
  • the in-vehicle device receives a second periodic state message sending parameter sent by the base station according to the network congestion information, where the second periodic state message sending parameter reduces a network congestion level with respect to the first periodic state message sending parameter;
  • the in-vehicle device transmits a parameter transmission period status message according to the second period status message.
  • the second periodic state message sending parameter reduces a network congestion level with respect to the first periodic state message sending parameter, including one of the following Or a combination:
  • the periodic state message sending power included in the second periodic state message sending parameter is smaller than the periodic state message sending power included in the first periodic state message sending parameter
  • the period information sending period included in the second period status message sending parameter is greater than the period status message sending period included in the first period status message sending parameter
  • the periodic state message sending frequency included in the second periodic state message sending parameter is smaller than the periodic state message sending frequency included in the first periodic state message sending parameter
  • the periodic state message transmission rate included in the second periodic state message sending parameter is smaller than the periodic state message transmission rate included in the first periodic state message sending parameter
  • the period of the period status message included in the second period status message sending parameter is smaller than the length of the period status message included in the first period status message sending parameter.
  • the configuration information of the loaded device specifically includes one of the following:
  • the in-vehicle device receives a configuration message sent by the base station through a system broadcast to determine the configuration information
  • the in-vehicle device receives a configuration message sent by the base station by using radio resource control dedicated signaling to determine the configuration information;
  • the in-vehicle device determines the configuration information by pre-configuration.
  • the network congestion indication parameter The reporting triggering conditions for satisfying the network congestion measurement event specifically include:
  • the occupancy rate of the vehicle communication resource is greater than or equal to the first threshold.
  • the method further includes:
  • the in-vehicle device stops reporting network congestion information to the base station.
  • the network congestion indication parameter The reporting triggering conditions for satisfying the network congestion measurement event specifically include:
  • the reception success rate of the vehicle communication data packet is less than or equal to the second threshold.
  • the method further includes:
  • the in-vehicle device stops reporting network congestion information to the base station.
  • the network congestion indication parameter The reporting triggering conditions for satisfying the network congestion measurement event specifically include:
  • the waiting time for sending the vehicle communication data packet is greater than or equal to the third threshold.
  • the method further includes:
  • the in-vehicle device stops reporting network congestion information to the base station.
  • the configuration information further includes The first system communication parameter, the first system communication parameter includes a system communication bandwidth and/or a subframe configuration number, and the method further includes:
  • the in-vehicle device performs reconfiguration according to the second system communication parameter.
  • the reducing the network congestion degree of the second system communication parameter with respect to the first system communication parameter includes the following One or a combination:
  • the system communication bandwidth indicated by the second system communication parameter is greater than the system communication bandwidth indicated by the first system communication parameter
  • the number of subframe configurations indicated by the second system communication parameter is greater than the number of subframe configurations indicated by the first system communication parameter.
  • the second periodic state message sending parameter reaches a fourth threshold, including at least one of the following five cases:
  • the transmission power of the second periodic state message is reduced to a first lower limit value
  • the transmission period of the second periodic state message is increased to a first upper limit value
  • the transmission frequency of the second periodic state message is decreased.
  • the transmission rate of the second periodic state message is reduced to the third lower limit value
  • the message size of the second periodic state message is reduced to the fourth lower limit value.
  • the configuration information further includes a reporting triggering condition of the network idle measurement event, where the method further includes:
  • a network idle indication parameter Determining, by the in-vehicle device, a network idle indication parameter, where the network idle indication parameter is used to indicate an idle degree of a network environment in which the in-vehicle device is located;
  • the in-vehicle device When the network idle indication parameter satisfies the reporting trigger condition of the network idle measurement event, the in-vehicle device reports network idle information to the base station;
  • the in-vehicle device performs reconfiguration according to the third system communication parameter.
  • the method further includes:
  • the in-vehicle device transmits a parameter transmission period status message according to the third period status message.
  • a second aspect of the present invention provides a communication method, including:
  • the base station sends a configuration message to the in-vehicle device, so that the in-vehicle device determines the configuration information;
  • the configuration information includes a first periodic state message sending parameter and a reporting trigger condition of the network congestion measurement event;
  • the base station receives the network congestion information, where the network congestion parameter indicates that the network congestion parameter determined by the in-vehicle device satisfies the reporting trigger condition of the network congestion measurement event, where the network congestion parameter is used to indicate the in-vehicle device The degree of congestion in the network environment;
  • the second periodic state message sending parameter reduces a network congestion level with respect to the first periodic state message sending parameter, including one of the following Or a combination:
  • the periodic state message sending power included in the second periodic state message sending parameter is smaller than the periodic state message sending power included in the first periodic state message sending parameter
  • the period information sending period included in the second period status message sending parameter is greater than the period status message sending period included in the first period status message sending parameter
  • the periodic state message sending frequency included in the second periodic state message sending parameter is smaller than the periodic state message sending frequency included in the first periodic state message sending parameter
  • the periodic state message transmission rate included in the second periodic state message sending parameter is smaller than the periodic state message transmission rate included in the first periodic state message sending parameter
  • the period of the period status message included in the second period status message sending parameter is smaller than the length of the period status message included in the first period status message sending parameter.
  • the sending, by the base station, the configuration message to the in-vehicle device specifically includes the following:
  • the base station sends a configuration message to the in-vehicle device by using radio resource control dedicated signaling.
  • the network congestion information is The first time period is when the vehicle communication resource occupancy rate is greater than or equal to the first threshold.
  • the network congestion information is The first time period is sent when the reception success rate of the vehicle communication data packet is less than or equal to the second threshold.
  • the network congestion information is In the first time period, when the transmission waiting time of the vehicle communication data packet is greater than or equal to the third threshold, it is sent.
  • the configuration information further includes The first system communication parameter, the first system communication parameter includes a system communication bandwidth and/or a subframe configuration number, and the method further includes:
  • the base station When the second periodic state message sending parameter reaches a fourth threshold, the base station sends a second system communication parameter to the in-vehicle device, so that the in-vehicle device performs reconfiguration according to the second system communication parameter;
  • the second system communication parameter reduces network congestion level relative to the first system communication parameter.
  • the second system communication parameter reduces a network congestion range with respect to the first system communication parameter Degrees include one or a combination of the following:
  • the system communication bandwidth indicated by the second system communication parameter is greater than the system communication bandwidth indicated by the first system communication parameter
  • the number of subframe configurations indicated by the second system communication parameter is greater than the number of subframe configurations indicated by the first system communication parameter.
  • the sending, by the second periodic state message, the fourth threshold to the fourth threshold includes at least one of the following five cases:
  • the transmission power of the second periodic state message is reduced to a first lower limit value
  • the transmission period of the second periodic state message is increased to a first upper limit value
  • the transmission frequency of the second periodic state message is decreased.
  • the transmission rate of the second lower limit value, the second periodic state message is reduced to a third lower limit value
  • the message size of the second periodic state message is reduced to a fourth lower limit value.
  • the configuration information further includes a reporting triggering condition of the network idle measurement event, where the method further includes:
  • the base station receives the network idle information, where the network idle parameter indicates that the network idle parameter determined by the in-vehicle device satisfies the reporting trigger condition of the network idle measurement event, where the network idle parameter is used to indicate the in-vehicle device The degree of idleness of the network environment in which it is located;
  • the method further includes:
  • the base station When the third system communication parameter reaches the fifth threshold, the base station sends a third period status message sending parameter to the in-vehicle device, so that the in-vehicle device sends a parameter sending period status according to the third period status message. a message; wherein the third periodic state message sending parameter reduces network idleness relative to the second periodic state message sending parameter.
  • a third aspect of the present invention provides an in-vehicle device, including:
  • a first determining unit configured to determine configuration information, where the configuration information includes a first periodic state message sending parameter and a reporting trigger condition of a network congestion measurement event;
  • a second determining unit configured to determine a network congestion indication parameter, where the network congestion indication parameter is used to indicate a congestion level of a network environment where the in-vehicle device is located;
  • a first reporting unit configured to report network congestion information to the base station when the network congestion indication parameter meets a reporting trigger condition of the network congestion measurement event
  • a first receiving unit configured to receive a second periodic state message sending parameter sent by the base station according to the network congestion information, where the second periodic state message sending parameter is related to the first periodic state message sending parameter reducing network Degree of congestion;
  • the first sending unit is configured to send a parameter sending period status message according to the second period status message.
  • the second periodic state message sending parameter reduces network congestion level with respect to the first periodic state message sending parameter, and includes one of the following Or a combination:
  • the periodic state message sending power included in the second periodic state message sending parameter is smaller than the periodic state message sending power included in the first periodic state message sending parameter
  • the period information sending period included in the second period status message sending parameter is greater than the period status message sending period included in the first period status message sending parameter
  • the periodic state message sending frequency included in the second periodic state message sending parameter is smaller than the periodic state message sending frequency included in the first periodic state message sending parameter
  • the periodic state message transmission rate included in the second periodic state message sending parameter is smaller than the periodic state message transmission rate included in the first periodic state message sending parameter
  • the period of the period status message included in the second period status message sending parameter is smaller than the length of the period status message included in the first period status message sending parameter.
  • the first determining unit is specifically configured to receive a configuration message sent by the base station by using a system broadcast to determine the configuration information;
  • the first determining unit is specifically configured to receive a configuration message sent by the base station by using radio resource control dedicated signaling to determine the configuration information;
  • the first determining unit is specifically configured to determine the configuration information by using a pre-configuration.
  • the configuration information further includes a first system communication parameter, where the first system communication parameter includes a system communication bandwidth and/or a subframe configuration quantity
  • the device further includes:
  • a second receiving unit configured to receive, when the sending parameter of the second periodic state message reaches a fourth threshold, a second system communication parameter sent by the base station, where the second system communication parameter is relative to the first System communication parameters reduce network congestion;
  • a first reconfiguration unit configured to perform reconfiguration according to the second system communication parameter.
  • the second system communication parameter reduces a network congestion degree with respect to the first system communication parameter, and includes the following One or a combination:
  • the system communication bandwidth indicated by the second system communication parameter is greater than the system communication bandwidth indicated by the first system communication parameter
  • the number of subframe configurations indicated by the second system communication parameter is greater than the number of subframe configurations indicated by the first system communication parameter.
  • the sending, by the second periodic state message, the fourth threshold includes at least one of the following five
  • the transmission power of the second periodic state message is reduced to a first lower limit value
  • the transmission period of the second periodic state message is increased to a first upper limit value
  • the transmission frequency of the second periodic state message is decreased.
  • the transmission rate of the second periodic state message is reduced to the third lower limit value
  • the message size of the second periodic state message is reduced to the fourth lower limit value.
  • the configuration information further includes a reporting triggering condition of the network idle measurement event, where the device further includes:
  • a third determining unit configured to determine a network idle indication parameter, where the network idle indication parameter is used to indicate an idle degree of a network environment where the in-vehicle device is located;
  • a second reporting unit configured to report network idle information to the base station when the network idle indication parameter meets a reporting trigger condition of the network idle measurement event
  • a fourth receiving unit configured to receive a third system communication parameter that is sent by the base station according to the network idle information, where the third system communication parameter is reduced relative to the second system communication parameter Degree of idleness;
  • a second reconfiguration unit configured to perform reconfiguration according to the third system communication parameter.
  • the device further includes:
  • a fifth receiving unit configured to receive, when the third system communication parameter reaches a fifth threshold, a third periodic state message sending parameter sent by the base station, where the third periodic state message sending parameter is relative to the first
  • the two-cycle status message sending parameter reduces the network idleness
  • a second sending unit configured to send a parameter sending period status message according to the third period status message.
  • a fourth aspect of the present invention provides a base station device, including:
  • a first sending module configured to send a configuration message to the in-vehicle device, so that the in-vehicle device determines configuration information;
  • the configuration information includes a first periodic state message sending parameter and a reporting trigger condition of a network congestion measurement event;
  • a first receiving module configured to receive network congestion information, where the network congestion parameter indicates that the network congestion parameter determined by the in-vehicle device meets a reporting trigger condition of the network congestion measurement event, where the network congestion parameter is used to indicate The degree of congestion of the network environment in which the in-vehicle device is located;
  • a second sending module configured to send, according to the network congestion information, a second period status message sending parameter to the in-vehicle device, so that the in-vehicle device sends a parameter sending period status message according to the second period status message;
  • the second periodic state message sending parameter reduces the network congestion level with respect to the first periodic state message sending parameter.
  • the second periodic state message sending parameter reduces network congestion level with respect to the first periodic state message sending parameter, and includes one of the following Or a combination:
  • the periodic state message sending power included in the second periodic state message sending parameter is smaller than the periodic state message sending power included in the first periodic state message sending parameter
  • the period information sending period included in the second period status message sending parameter is greater than the period status message sending period included in the first period status message sending parameter
  • the periodic state message sending frequency included in the second periodic state message sending parameter is smaller than the periodic state message sending frequency included in the first periodic state message sending parameter
  • the periodic state message transmission rate included in the second periodic state message sending parameter is smaller than the periodic state message transmission rate included in the first periodic state message sending parameter
  • the period of the period status message included in the second period status message sending parameter is smaller than the length of the period status message included in the first period status message sending parameter.
  • the first sending module has a function for sending a configuration message to the in-vehicle device through a system broadcast;
  • the first sending module is specifically configured to send a configuration message to the in-vehicle device by using radio resource control dedicated signaling.
  • the configuration information further includes The first system communication parameter, the first system communication parameter includes a system communication bandwidth and/or a subframe configuration number, and the device further includes:
  • a third sending module configured to send a second system communication parameter to the in-vehicle device when the sending parameter of the second periodic state message reaches a fourth threshold, so that the in-vehicle device according to the second system communication parameter Performing reconfiguration; wherein the second system communication parameter reduces network congestion relative to the first system communication parameter.
  • the second system communication parameter reduces a network congestion degree with respect to the first system communication parameter, and includes the following One or a combination:
  • the system communication bandwidth indicated by the second system communication parameter is greater than the system communication bandwidth indicated by the first system communication parameter
  • the number of subframe configurations indicated by the second system communication parameter is greater than the number of subframe configurations indicated by the first system communication parameter.
  • the sending, by the second periodic state message, the fourth threshold includes at least one of the following five
  • the transmission power of the second periodic state message is reduced to a first lower limit value
  • the transmission period of the second periodic state message is increased to a first upper limit value
  • the transmission frequency of the second periodic state message is decreased.
  • the transmission rate of the second periodic state message is reduced to the third lower limit value
  • the message size of the second periodic status message is reduced to a fourth lower limit value.
  • the configuration information further includes a report triggering condition of the network idle measurement event, where the device further includes:
  • a second receiving module configured to receive network idle information, where the network idle parameter indicates that the network idle parameter determined by the in-vehicle device meets a reporting trigger condition of the network idle measurement event, where the network idle parameter is used to indicate The degree of idleness of the network environment in which the in-vehicle device is located;
  • a fourth sending module configured to send a third system communication parameter to the in-vehicle device according to the network idle information, so that the in-vehicle device performs reconfiguration according to the third system communication parameter; wherein the third system communication The parameter reduces network idleness relative to the second system communication parameter.
  • the device further includes:
  • a fifth sending module configured to send, to the in-vehicle device, a third periodic state message sending parameter, when the third system communication parameter reaches a fifth threshold, to enable the in-vehicle device to send according to the third periodic state message a parameter sending period status message; wherein the third period status message sending parameter reduces network idleness relative to the second period status message sending parameter.
  • a fifth aspect of the present invention provides an in-vehicle device, including: a receiver, a transmitter, a processor, and a memory; and the processor is configured to perform the following operations:
  • Determining configuration information where the configuration information includes a first period status message sending parameter and a reporting trigger condition of the network congestion measurement event;
  • the The information further includes a first system communication parameter, the first system communication parameter including a system communication bandwidth and/or a subframe configuration number, and the processor is further configured to perform the following operations:
  • Reconfiguration is performed according to the second system communication parameters.
  • the configuration information further includes a reporting trigger condition of a network idle measurement event, where the processor is further configured to perform Do the following:
  • Determining a network idle indication parameter where the network idle indication parameter is used to indicate an idle degree of a network environment in which the in-vehicle device is located;
  • Reconfiguration is performed according to the third system communication parameter.
  • the processor is further configured to perform the following operations:
  • a sixth aspect of the present invention provides a base station device, including: a receiver, a transmitter, a processor, and a memory; and the processor is configured to perform the following operations:
  • the configuration information includes a first periodic state message sending parameter and a reporting trigger condition of a network congestion measurement event
  • the network congestion parameter indicating that the network congestion parameter determined by the in-vehicle device meets a reporting trigger condition of the network congestion measurement event, where the network congestion parameter is used to indicate a network where the in-vehicle device is located The degree of environmental congestion;
  • the configuration information further includes a first system communication parameter, where the first system communication parameter includes a system communication bandwidth and/or a subframe.
  • the processor is also used to perform the following operations:
  • the second system communication parameter reduces the degree of network congestion relative to the first system communication parameter.
  • the configuration information further includes a reporting trigger condition of the network idle measurement event, where the processor is further configured to perform Do the following:
  • the network idle parameter indicating that the network idle parameter determined by the in-vehicle device meets a report triggering condition of the network idle measurement event, where the network idle parameter is used to indicate a network where the in-vehicle device is located The degree of availability of the environment;
  • the processor is further configured to perform the following operations:
  • the third periodic state message sending parameter reduces network idleness with respect to the second periodic state message sending parameter.
  • the embodiment of the present invention has the following advantages: when the network congestion indication parameter satisfies the reporting trigger condition of the network congestion measurement event, the in-vehicle device reports network congestion information to the base station; The in-vehicle device receives the base station according to the network congestion information Sending a second periodic status message to send a parameter, and sending a parameter sending period status message according to the second period status message.
  • global congestion control is implemented for network congestion, which effectively alleviates the network congestion problem in the vehicle network and improves the stability of the congestion control system.
  • FIG. 1 is a schematic flow chart of an embodiment of a communication method provided by the present invention.
  • FIG. 2 is a schematic flow chart of another embodiment of a communication method provided by the present invention.
  • FIG. 3 is a schematic flow chart of another embodiment of a communication method provided by the present invention.
  • FIG. 4 is a schematic flow chart of another embodiment of a communication method provided by the present invention.
  • FIG. 5 is a schematic flowchart diagram of another embodiment of a communication method according to the present invention.
  • FIG. 6 is a schematic flowchart diagram of another embodiment of a communication method according to the present invention.
  • FIG. 7 is a schematic flowchart diagram of another embodiment of a communication method according to the present invention.
  • FIG. 8 is a schematic flowchart diagram of another embodiment of a communication method according to the present invention.
  • FIG. 9 is a schematic flowchart diagram of another embodiment of a communication method according to the present invention.
  • FIG. 10 is a schematic flowchart diagram of another embodiment of a communication method according to the present invention.
  • FIG. 11 is a schematic flowchart diagram of another embodiment of a communication method according to the present invention.
  • FIG. 12 is a schematic structural view of an embodiment of an in-vehicle device provided by the present invention.
  • FIG. 13 is a schematic structural diagram of another embodiment of an in-vehicle device according to the present invention.
  • FIG. 14 is a schematic structural diagram of another embodiment of an in-vehicle device according to the present invention.
  • 15 is a schematic structural view of another embodiment of an in-vehicle device provided by the present invention.
  • 16 is a schematic structural view of another embodiment of an in-vehicle device provided by the present invention.
  • FIG. 17 is a schematic structural diagram of an embodiment of a base station device according to the present invention.
  • FIG. 18 is a schematic structural diagram of another embodiment of a base station device according to the present invention.
  • FIG. 19 is a schematic structural diagram of another embodiment of a base station device according to the present invention.
  • FIG. 20 is a schematic structural diagram of another embodiment of a base station device according to the present invention.
  • FIG. 21 is a schematic structural diagram of another embodiment of a base station device according to the present invention.
  • an embodiment of a communication method provided by the present invention includes:
  • the in-vehicle device determines configuration information, where the configuration information includes a first periodic state message sending parameter and a reporting trigger condition of the network congestion measurement event;
  • the configuration information includes a first PSM (Periodic Status Message) transmission parameter and a network congestion measurement event reporting trigger condition; in order to ensure safe driving of the vehicle, the vehicle and the vehicle need to pass VDC (Vehicle Direct Communication).
  • the vehicle communicates directly with the interface.
  • the interactive status information is called BSM (Basic Safety Message) in the United States and CAM in Europe. It is collectively referred to as PSM.
  • the PSM can be understood as a "heartbeat package" of the vehicle.
  • the PSM transmission parameter includes information such as the position, speed, and status of the vehicle, and is broadcasted to the surrounding vehicles by a single hop, and the frequency is generally 100 ms/time;
  • the surrounding vehicle PSM sends parameters to determine and warn of impending dangers and reduce the occurrence of disasters.
  • the determining information of the in-vehicle device specifically includes one of the following:
  • the in-vehicle device receives a configuration message sent by the base station through a system broadcast to determine the configuration information
  • the in-vehicle device receives a configuration message sent by the base station by using radio resource control dedicated signaling to determine the configuration information;
  • the in-vehicle device determines the configuration information by pre-configuration.
  • the in-vehicle device can communicate by setting corresponding function modules.
  • two communication modules are installed in the in-vehicle device, and one is a traditional LTE (Long Term Evolution) communication module for vehicles and base stations. Inter-communication and interaction information; the other is a VDC communication module for direct communication between the vehicle and the vehicle (the message is not relayed by the base station); wherein the working frequency band of the VDC communication module may be a dedicated spectrum of the direct communication of the vehicle, which may be The traditional LTE spectrum can also be an unlicensed spectrum.
  • the communication technology of the VDC communication module can be the 802.11p communication technology currently adopted in Europe and the United States, or the VDC communication technology based on the LTE design.
  • the VDC communication module configures a first PSM transmission parameter of the VDC communication module and a report triggering condition of the network congestion measurement event according to the system broadcast message received by the LTE communication module, and performs V2V (vehicle) with other vehicles. -to-vehicle, car and car) communication.
  • the in-vehicle device determines a network congestion indication parameter.
  • the network congestion indication parameter is used to indicate the network environment where the in-vehicle device is located. The degree of congestion.
  • the in-vehicle device When the network congestion indication parameter satisfies the reporting trigger condition of the network congestion measurement event, the in-vehicle device reports network congestion information to the base station;
  • the in-vehicle device monitors the network congestion indication parameter according to the reported triggering condition of the network congestion measurement event, and reports the network congestion information to the base station if the monitoring result meets the reporting trigger condition of the network congestion measurement event. .
  • the in-vehicle device receives a second periodic state message sending parameter sent by the base station according to the network congestion information.
  • the second periodic state message sending parameter reduces the network congestion level with respect to the first period state message sending parameter; wherein the second period state message sending parameter is compared to the first period state message sending parameter to reduce the network.
  • the degree of congestion includes one or a combination of the following:
  • the periodic state message sending power included in the second periodic state message sending parameter is smaller than the periodic state message sending power included in the first periodic state message sending parameter
  • the period information sending period included in the second period status message sending parameter is greater than the period status message sending period included in the first period status message sending parameter
  • the periodicity message sending frequency included in the second periodic state message sending parameter is smaller than the periodic state message sending frequency included in the first periodic state message sending parameter
  • the period information transmission rate included in the second period status message sending parameter is smaller than the period status message transmission rate included in the first period status message sending parameter
  • the second periodic status message sending parameter includes a period status message length that is smaller than a period status message length included in the first period status message sending parameter.
  • the second periodic state message sending parameter may be reconfiguration information of the first PSM transmission parameter that is performed by the base station to perform collective congestion control on the in-cell vehicle by the system broadcast; or by RRC (Radio Resource Control, Radio resource control) Reconfiguration information of a first PSM transmission parameter for individual congestion control of a designated vehicle in a cell transmitted by dedicated signaling.
  • RRC Radio Resource Control, Radio resource control
  • the in-vehicle device sends a parameter sending period status message according to the second period status message.
  • the VDC communication module in the in-vehicle device reconfigures the V2V communication parameter of the VDC communication module according to the second PSM transmission parameter, and sends the PSM to the surrounding vehicle.
  • the in-vehicle device when the network congestion indication parameter satisfies the reporting of the network congestion measurement event When the triggering condition is met, the in-vehicle device reports network congestion information to the base station; the in-vehicle device receives a second periodic state message sending parameter sent by the base station according to the network congestion information, and sends a parameter sending period status message according to the second period status message. .
  • global congestion control is implemented for network congestion, which effectively alleviates the network congestion problem in the vehicle network and improves the stability of the congestion control system.
  • another embodiment of the communication method provided by the present invention includes:
  • the in-vehicle device determines configuration information, where the configuration information includes a first periodic state message sending parameter and a report triggering condition of a network congestion measurement event.
  • the important parameter of the reporting condition of the network congestion measurement event may be the network congestion reporting threshold Thresh_high. And monitoring time T.
  • the in-vehicle device determines a vehicle communication resource occupancy rate
  • vehicle communication resource occupancy rate is used to indicate the degree of congestion of the network environment in which the in-vehicle device is located, and is specifically used to indicate a CBR (Channel Busy Ratio).
  • the in-vehicle device reports network congestion information to the base station.
  • the in-vehicle device monitors the occupancy rate of the vehicle communication resource according to the reported trigger condition of the configured network congestion measurement event, when the measured vehicle is in the first time period (ie, within the monitoring time T). If the communication resource occupancy rate is greater than or equal to the first threshold, the network device triggers an RRC connection process, establishes an RRC connection with the base station, and reports network congestion information to the base station; the network congestion information
  • the CBR and/or the current PSM transmission parameters are included, where the CBR may be the occupancy rate of the physical resource block (PBR), and the PSM transmission parameter may include the PSM transmission power, the PSM transmission period, the PSM transmission frequency, and the PSM transmission rate.
  • the specific implementation can be implemented as follows:
  • the reporting condition of the network congestion measurement event may be that the vehicle communication resource occupancy rate measured during the monitoring time T is greater than or equal to the network congestion reporting threshold Thresh_high, that is, the network congestion measurement event is triggered to be reported.
  • Thresh_high the network congestion reporting threshold
  • the network congestion measurement event is triggered to be reported.
  • Hys is the margin parameter related to the network congestion measurement event
  • Ms is the measured value of the vehicle equipment communication resource occupancy rate of the vehicle equipment.
  • the in-vehicle device receives a second periodic state message sending parameter sent by the base station according to the network congestion information.
  • the in-vehicle device sends a parameter sending period status message according to the second period status message.
  • the in-vehicle device determines the occupancy rate of the vehicle communication resource.
  • the in-vehicle device reports the network congestion information to the base station.
  • the in-vehicle device receives a second periodic status message sending parameter sent by the base station according to the network congestion information, and sends a parameter sending period status message according to the second period status message.
  • another embodiment of the communication method provided by the present invention includes:
  • the in-vehicle device determines configuration information, where the configuration information includes a first periodic state message sending parameter and a reporting triggering condition of a network congestion measurement event.
  • the in-vehicle device determines a success rate of receiving the vehicle communication data packet
  • the success rate of receiving the vehicle communication data packet is used to indicate the degree of congestion of the network environment in which the vehicle equipment is located.
  • the in-vehicle device reports network congestion information to the base station.
  • the step 303 is different from the step 203 in the embodiment shown in FIG. 2 in that the triggering condition of the network congestion measurement event in step 203 is that the vehicle communication resource occupancy rate is greater than or equal to the first threshold; the network congestion measurement in step 303 The triggering condition of the event is that the reception of the vehicle communication data packet is successful. The rate is less than or equal to the second threshold; the specific implementation may refer to step 203 together, and details are not described herein again.
  • the in-vehicle device receives a second periodic state message sending parameter sent by the base station according to the network congestion information.
  • the in-vehicle device sends a parameter sending period status message according to the second period status message.
  • the in-vehicle device determines a success rate of receiving the vehicle communication data packet, and when the receiving success rate of the vehicle communication data packet is less than or equal to a second threshold value in the first time period, the vehicle-mounted device
  • the base station reports network congestion information; the in-vehicle device receives a second periodic state message sending parameter sent by the base station according to the network congestion information, and sends a parameter sending period status message according to the second period status message.
  • global congestion control is implemented for network congestion, which effectively alleviates the network congestion problem in the vehicle network and improves the stability of the congestion control system.
  • another embodiment of the communication method provided by the present invention includes:
  • the in-vehicle device determines configuration information, where the configuration information includes a first periodic state message sending parameter and a reporting trigger condition of a network congestion measurement event.
  • the in-vehicle device determines a waiting time for sending a communication data packet of the vehicle and the vehicle;
  • the in-vehicle device determines that the waiting time for sending the vehicle communication data packet is used to indicate the degree of congestion of the network environment in which the in-vehicle device is located.
  • the in-vehicle device reports network congestion information to the base station.
  • the step 403 is different from the step 203 in the embodiment shown in FIG. 2 in that the triggering condition of the network congestion measurement event in step 203 is that the vehicle communication resource occupancy rate is greater than or equal to the first threshold; the network congestion measurement in step 403
  • the reporting trigger condition of the event is that the sending waiting time of the vehicle communication data packet is greater than or equal to a third threshold; wherein the sending waiting time is used to indicate whether the in-vehicle device has contend for the communication resource, or whether the scheduling message of the base station has been received.
  • the specific implementation manner can refer to step 203 together, and details are not described herein again.
  • the in-vehicle device receives a second periodic state message sending parameter that is sent by the base station according to the network congestion information.
  • the in-vehicle device sends a parameter sending period status message according to the second period status message.
  • the in-vehicle device determines a waiting time for sending a communication data packet of the vehicle, and when the waiting time for sending the communication data packet of the vehicle is greater than or equal to a third threshold in the first time period, the in-vehicle device
  • the base station reports network congestion information; the in-vehicle device receives a second periodic state message sending parameter sent by the base station according to the network congestion information, and sends a parameter sending period status message according to the second period status message.
  • global congestion control is implemented for network congestion, which effectively alleviates the network congestion problem in the vehicle network and improves the stability of the congestion control system.
  • the first-level congestion control based on the network congestion implements the second-level congestion control on the network congestion problem, and the foregoing embodiments may be used.
  • the second-level congestion control of the network congestion problem is described in conjunction with FIG. 2 of the foregoing embodiment. Referring to FIG. 5, the communication method provided by the present invention is provided. Another embodiment includes:
  • the in-vehicle device determines configuration information, where the configuration information includes a first periodic state message sending parameter, a first system communication parameter, and a reporting trigger condition of a network congestion measurement event.
  • the first system communication parameter includes a system communication bandwidth and/or a subframe configuration number.
  • the in-vehicle device determines a vehicle communication resource occupancy rate
  • the in-vehicle device reports network congestion information to the base station.
  • the in-vehicle device receives a second periodic state message sending parameter sent by the base station according to the network congestion information.
  • the in-vehicle device sends a parameter sending period status message according to the second period status message.
  • the in-vehicle device receives the second system communication parameter sent by the base station.
  • the in-vehicle device receives the second system communication parameter sent by the base station;
  • the period of the periodic state message sending parameter reaching the fourth threshold includes at least one of the following five cases: the sending power of the second period status message is reduced to the first lower limit value, and the sending period of the second period status message is increased to the first An upper limit value, a transmission frequency of the second periodic state message is reduced to a second lower limit value, a transmission rate of the second periodic state message is decreased to a third lower limit value, and a message size of the second periodic state message is Decrease to the fourth lower limit.
  • the second system communication parameter reduces network congestion level with respect to the first system communication parameter; and specifically includes one or a combination of the following:
  • the system communication bandwidth indicated by the second system communication parameter is greater than the system communication bandwidth indicated by the first system communication parameter
  • the number of subframe configurations indicated by the second system communication parameter is greater than the number of subframe configurations indicated by the first system communication parameter.
  • the second system communication parameter may be reconfiguration information of the first system communication parameter that the base station performs collective congestion control on the vehicle in the cell by using the system broadcast; or is separately sent to the designated vehicle in the cell by using RRC dedicated signaling. Reconfiguration information for the first system communication parameters of congestion control.
  • the in-vehicle device performs reconfiguration according to the second system communication parameter.
  • the VDC communication module in the in-vehicle device reconfigures the V2V communication parameter of the VDC communication module according to the second system communication parameter.
  • the in-vehicle device when the sending parameter of the second periodic state message reaches the fourth threshold, the in-vehicle device receives the second system communication parameter sent by the base station, and performs reconfiguration according to the second system communication parameter. Therefore, the secondary congestion control can effectively alleviate the network congestion problem in the vehicle network and improve the stability of the congestion control system.
  • the embodiment of the present invention will provide a description of the network congestion problem and the network idle problem.
  • the communication provided by the present invention is provided. Another embodiment of the method includes:
  • the in-vehicle device determines configuration information, where the configuration information includes a first periodic state message sending parameter, a first system communication parameter, a reporting trigger condition of the network congestion measurement event, and a reporting trigger condition of the network idle measurement event.
  • step 601 For the specific process of the step 601, refer to the step 201 shown in FIG. 2, based on the content described in step 201, it is necessary to additionally add an important parameter of the reporting trigger condition of the idle measurement event of the network.
  • the number can be the network idle reporting threshold Thresh_low and the monitoring time T.
  • the in-vehicle device determines a network congestion indication parameter or a network idle indication parameter.
  • the network congestion indication parameter is used to indicate the degree of congestion of the network environment in which the in-vehicle device is located;
  • the network idle indication parameter is used to indicate the idleness of the network environment in which the in-vehicle device is located.
  • the in-vehicle device reports network congestion information to the base station.
  • reporting condition that the network congestion indication parameter meets the network congestion measurement event specifically includes one of the following:
  • the occupancy rate of the vehicle communication resource is greater than or equal to the first threshold
  • Receiving a success rate of the vehicle communication data packet is less than or equal to a second threshold during the first time period
  • the waiting time for sending the vehicle communication data packet is greater than or equal to the third threshold.
  • the in-vehicle device receives a second periodic state message sending parameter sent by the base station according to the network congestion information.
  • the in-vehicle device sends a parameter sending period status message according to the second period status message.
  • the in-vehicle device receives the second system communication parameter sent by the base station.
  • the in-vehicle device performs reconfiguration according to the second system communication parameter.
  • the in-vehicle device reports network idle information to the base station.
  • the reporting condition that the network idle indication parameter meets the idle measurement event of the network may include any one of the following three implementation manners: in the first time period, the vehicle communication resource occupancy rate is less than the sixth threshold; Alternatively, during the first time period, the receiving success rate of the vehicle communication data packet is greater than a seventh threshold; or, in the first time period, the transmission waiting time of the vehicle communication data packet is less than an eighth threshold.
  • the specific implementation modes is listed:
  • the reporting trigger condition of the network idle measurement event may be measured within the monitoring time T.
  • the occupancy rate of the vehicle communication resource is less than the network idle reporting threshold Thresh_low, which triggers the reporting of the network idle measurement event.
  • Thresh_low the network idle reporting threshold
  • Hys is the margin parameter related to the idle measurement event of the network
  • Ms is the measured value of the occupancy rate of the vehicle communication resource by the in-vehicle device.
  • the in-vehicle device establishes an RRC connection with the base station, and reports network idle information to the base station;
  • the network idle information includes a CBR and/or a current PSM transmission parameter; wherein the CBR It may be the occupancy rate of all PRBs, and the PSM transmission parameters may include PSM transmission power, PSM transmission period, PSM transmission frequency, PSM transmission rate, PSM packet size, and the like.
  • the in-vehicle device receives a third system communication parameter that is sent by the base station according to the network idle information.
  • the third system communication parameter reduces the network idleness with respect to the second system communication parameter, and specifically includes one or a combination of the following:
  • the system communication bandwidth indicated by the third system communication parameter is less than the system communication bandwidth indicated by the second system communication parameter
  • the number of subframe configurations indicated by the third system communication parameter is less than the number of subframe configurations indicated by the second system communication parameter.
  • the in-vehicle device performs reconfiguration according to the third system communication parameter.
  • the VDC communication module in the in-vehicle device reconfigures the V2V communication parameter of the VDC communication module according to the third system communication parameter.
  • the in-vehicle device when the network idle indication parameter satisfies the reporting trigger condition of the network idle measurement event, the in-vehicle device reports network idle information to the base station; and the in-vehicle device receives the third information that the base station sends according to the network idle information.
  • the system communicates parameters and reconfigures according to the third system communication parameters. Therefore, the idle control of the network idleness can effectively alleviate the network idle problem in the vehicle network. In order to make reasonable use of network resources, and improve the stability of the idle control system.
  • the first-level idle control based on the network idle is implemented to perform the second-level idle control on the network idle problem, and the foregoing embodiments can be used in combination with the embodiment of the present invention.
  • the secondary idle control of the network idle problem is described in conjunction with FIG. 6 of the foregoing embodiment.
  • another embodiment of the communication method provided by the present invention includes:
  • the in-vehicle device determines configuration information, where the configuration information includes a first periodic state message sending parameter, a first system communication parameter, a reporting trigger condition of the network congestion measurement event, and a reporting trigger condition of the network idle measurement event.
  • the in-vehicle device determines a network congestion indication parameter or a network idle indication parameter.
  • the in-vehicle device reports network congestion information to the base station.
  • the in-vehicle device receives a second periodic state message sending parameter sent by the base station according to the network congestion information.
  • the in-vehicle device sends a parameter sending period status message according to the second period status message.
  • the in-vehicle device receives the second system communication parameter sent by the base station.
  • the in-vehicle device performs reconfiguration according to the second system communication parameter.
  • the in-vehicle device reports network idle information to the base station.
  • the in-vehicle device receives a third system communication parameter that is sent by the base station according to the network idle information.
  • the in-vehicle device performs reconfiguration according to the third system communication parameter.
  • steps 701-710 can be respectively referred to the steps 601-610 in the embodiment shown in FIG. 6, and details are not described herein again.
  • the in-vehicle device receives a third periodic state message sending parameter sent by the base station.
  • the third system communication parameter reaching the fifth threshold includes at least one of the following two situations: the system communication bandwidth indicated by the third system communication parameter is reduced to a fifth lower limit value, and the third The number of subframe configurations indicated by the system communication parameters is reduced to a sixth lower limit value.
  • the third periodic state message sending parameter reduces the network idleness with respect to the second periodic state message sending parameter; and specifically includes one or a combination of the following:
  • the periodic state message sending power included in the third periodic state message sending parameter is greater than the periodic state message sending power included in the second periodic state message sending parameter
  • the period information sending period included in the third period status message sending parameter is smaller than the period status message sending period included in the second period status message sending parameter
  • the periodicity message sending frequency included in the third periodic state message sending parameter is greater than the periodic state message sending frequency included in the second periodic state message sending parameter
  • the period information transmission rate included in the third period status message sending parameter is greater than the period status message transmission rate included in the second period status message sending parameter
  • the third period status message sending parameter includes a period status message length that is greater than a period status message length included in the second period status message sending parameter.
  • the in-vehicle device sends a parameter sending period status message according to the third period status message.
  • the VDC communication module in the in-vehicle device reconfigures the V2V communication parameter of the VDC communication module according to the third PSM transmission parameter, and sends the PSM to the surrounding vehicle.
  • the in-vehicle device when the third system communication parameter reaches the fifth threshold, the in-vehicle device receives the third periodic state message sending parameter sent by the base station; and the in-vehicle device sends the parameter sending period state according to the third period status message. Message. Therefore, the secondary idle control can effectively alleviate the network idle problem in the car network, so as to rationally utilize the network resources and improve the stability of the idle control system.
  • the reporting trigger condition of the network congestion measurement event and the reporting trigger condition of the network idle measurement event in the foregoing embodiment may be configured to be based on the periodically triggered measurement event; specifically, the measurement event based on the periodic trigger is important.
  • the parameter is the measurement period T_C and the monitoring time T, and the in-vehicle device periodically reports the current network congestion indication parameter or the current network idle indication parameter to the base station according to the measurement period T_C, and the base station refers to the current network congestion indication parameter or the current network idle indication parameter to the network.
  • the environment is controlled. For the specific process, refer to the above content, which will not be described in detail here.
  • FIG. 8 another embodiment of the communication method provided by the present invention includes:
  • the base station sends a configuration message to the in-vehicle device, so that the in-vehicle device determines the configuration information.
  • the configuration information includes a first periodic state message sending parameter and a reporting triggering condition of the network congestion measurement event.
  • the configuration information includes a first PSM transmission parameter and a report triggering condition of the network congestion measurement event; in order to ensure safe driving of the vehicle, the vehicle and the vehicle need to periodically exchange state information through the VDC interface, and the interaction state information is The United States is called BSM, and it is called CAM in Europe. It is collectively called PSM.
  • the PSM can be understood as a "heartbeat package" of the vehicle.
  • the PSM transmission parameter includes information such as the position, speed, and status of the vehicle, and is broadcasted to the surrounding vehicles by a single hop, and the frequency is generally 100 ms/time;
  • the surrounding vehicle PSM sends parameters to determine and warn of impending dangers and reduce the occurrence of disasters.
  • the sending, by the base station, the configuration message to the in-vehicle device specifically includes one of the following:
  • the base station sends a configuration message to the in-vehicle device through a system broadcast;
  • the base station sends a configuration message to the in-vehicle device through radio resource control dedicated signaling.
  • the in-vehicle device can communicate by setting corresponding function modules.
  • two communication modules are installed in the in-vehicle device, one is a traditional LTE communication module, which is used for communication and interaction information between the vehicle and the base station; It is a VDC communication module for direct communication between the vehicle and the vehicle (the message is not transferred by the base station); wherein the working frequency band of the VDC communication module may be a dedicated spectrum of the direct communication of the vehicle and the vehicle, and may be a conventional LTE spectrum or a non- Authorized spectrum;
  • the communication technology of the VDC communication module may be the 802.11p communication technology currently adopted in Europe and America, or may be the VDC communication technology based on the LTE design.
  • the VDC communication module configures a V2V communication parameter of the VDC communication module and a network congestion measurement event according to the system broadcast message received by the LTE communication module, and performs V2V communication with other vehicles.
  • the base station receives network congestion information, where the network congestion information indicates that the network congestion parameter determined by the in-vehicle device satisfies a reporting trigger condition of the network congestion measurement event.
  • the network congestion indication parameter is used to indicate the degree of congestion of the network environment in which the in-vehicle device is located; wherein the network congestion indication parameter meets the reporting triggering condition of the network congestion measurement event, and specifically includes one of the following:
  • the occupancy rate of the vehicle communication resource is greater than or equal to the first threshold
  • Receiving a success rate of the vehicle communication data packet is less than or equal to a second threshold during the first time period
  • the waiting time for sending the vehicle communication data packet is greater than or equal to the third threshold.
  • the important parameters of the reporting trigger condition of the network congestion measurement event may be the network congestion reporting threshold Thresh_high and the monitoring time T.
  • the reporting condition of the network congestion measurement event may be that the vehicle communication resource occupancy rate measured during the monitoring time T is greater than or equal to the network congestion reporting threshold Thresh_high, that is, the network congestion measurement event is triggered to be reported.
  • Thresh_high the network congestion reporting threshold
  • Hys is the margin parameter related to the network congestion measurement event
  • Ms is the measured value of the vehicle equipment communication resource occupancy rate of the vehicle equipment.
  • the base station After satisfying the reporting trigger condition of the network congestion measurement event, the base station establishes an RRC connection with the in-vehicle device, and receives network congestion information sent by the in-vehicle device; the network congestion information includes a CBR and/or a current PSM transmission parameter;
  • the CBR may be the occupancy rate of all the PRBs, and the PSM transmission parameters may include the PSM transmission power, the PSM transmission period, the PSM transmission frequency, the PSM transmission rate, and the PSM packet size.
  • the base station sends a second periodic state message sending parameter to the in-vehicle device according to the network congestion information, so that the in-vehicle device sends a parameter sending period status message according to the second period status message.
  • the second periodic state message sending parameter reduces the network congestion level with respect to the first periodic state message sending parameter; and specifically includes one or a combination of the following:
  • the periodic state message sending power included in the second periodic state message sending parameter is smaller than the periodic state message sending power included in the first periodic state message sending parameter
  • the period information sending period included in the second period status message sending parameter is greater than the period status message sending period included in the first period status message sending parameter
  • the periodicity message sending frequency included in the second periodic state message sending parameter is smaller than the periodic state message sending frequency included in the first periodic state message sending parameter
  • the period information transmission rate included in the second period status message sending parameter is smaller than the period status message transmission rate included in the first period status message sending parameter
  • the second periodic status message sending parameter includes a period status message length that is smaller than a period status message length included in the first period status message sending parameter.
  • the second periodic state message sending parameter may be reconfiguration information of a first PSM transmission parameter that is performed by the base station to perform collective congestion control on a vehicle in a cell, or is sent by using RRC dedicated signaling.
  • the reconfiguration information of the first PSM transmission parameter for individual congestion control of the designated vehicle in the cell.
  • the VDC communication module in the in-vehicle device reconfigures the V2V communication parameter of the VDC communication module according to the second PSM transmission parameter, and transmits the PSM to the surrounding vehicle.
  • the base station sends a configuration message to the in-vehicle device, so that the in-vehicle device determines the configuration information; the base station receives the network congestion information, and sends a second periodic state message sending parameter to the in-vehicle device according to the network congestion information, And causing the in-vehicle device to send a parameter transmission period status message according to the second period status message.
  • global congestion control is implemented for network congestion, which effectively alleviates the network congestion problem in the vehicle network and improves the stability of the congestion control system.
  • the first-level congestion control based on network congestion implements the second-level congestion control on the network congestion problem, and the following will be the network congestion.
  • the secondary congestion control of the problem is described in detail; referring to FIG. 9, another embodiment of the communication method provided by the present invention includes:
  • the base station sends a configuration message to the in-vehicle device, so that the in-vehicle device determines configuration information.
  • the configuration information includes a first periodic state message sending parameter, a first system communication parameter, and a reporting trigger condition of the network congestion measurement event.
  • the specific process of the step 901 may be corresponding to the step 801 shown in FIG. 8.
  • the first system communication parameter includes system communication bandwidth and/or The number of subframe configurations.
  • the base station receives network congestion information, where the network congestion information indicates that the network congestion parameter determined by the in-vehicle device satisfies a reporting trigger condition of the network congestion measurement event.
  • the base station sends a second period status message sending parameter to the in-vehicle device according to the network congestion information, so that the in-vehicle device sends the parameter sending period status according to the second period status message. interest;
  • steps 902 and 903 can be respectively referred to the steps 802 and 803 in the embodiment shown in FIG. 8 , and details are not described herein again.
  • the base station sends a second system communication parameter to the in-vehicle device, so that the in-vehicle device performs reconfiguration according to the second system communication parameter.
  • the base station sends a second system communication parameter to the in-vehicle device, so that the VDC communication in the in-vehicle device
  • the module reconfigures the V2V communication parameters of the VDC communication module according to the second system communication parameter.
  • the second periodic state message sending parameter reaches the fourth threshold, including at least one of the following five situations: the sending power of the second periodic state message is reduced to a first lower limit value, and the second periodic state message is sent.
  • the period is increased to a first upper limit value, the transmission frequency of the second periodic state message is decreased to a second lower limit value, and the transmission rate of the second periodic state message is decreased to a third lower limit value, the second period
  • the message size of the status message is reduced to the fourth lower limit.
  • the second system communication parameter reduces network congestion level with respect to the first system communication parameter; and specifically includes one or a combination of the following:
  • the system communication bandwidth indicated by the second system communication parameter is greater than the system communication bandwidth indicated by the first system communication parameter
  • the number of subframe configurations indicated by the second system communication parameter is greater than the number of subframe configurations indicated by the first system communication parameter.
  • the second system communication parameter may be reconfiguration information of the first system communication parameter that the base station performs collective congestion control on the vehicle in the cell by using the system broadcast; or is separately sent to the designated vehicle in the cell by using RRC dedicated signaling. Reconfiguration information for the first system communication parameters of congestion control.
  • the base station when the second periodic state message sending parameter reaches the fourth threshold, the base station sends the second system communication parameter to the in-vehicle device, so that the in-vehicle device performs reconfiguration according to the second system communication parameter. Therefore, the secondary congestion control can effectively alleviate the network congestion problem in the vehicle network and improve the stability of the congestion control system.
  • another embodiment of the communication method provided by the present invention includes:
  • the base station sends a configuration message to the in-vehicle device, so that the in-vehicle device determines configuration information.
  • the configuration information includes a first periodic state message sending parameter, a first system communication parameter, a network congestion measurement event reporting trigger condition, and a network idle measurement event. Reporting trigger condition;
  • step 1001 may be corresponding to the step 901 shown in FIG. 9. Based on the content described in step 901, it is necessary to additionally add that the important parameters of the reporting trigger condition of the network idle measurement event may be It is the network idle reporting threshold Thresh_low and monitoring time T.
  • the base station receives network congestion information, where the network congestion information indicates that the network congestion parameter determined by the in-vehicle device satisfies a reporting trigger condition of the network congestion measurement event.
  • the base station sends a second period status message sending parameter to the in-vehicle device according to the network congestion information, so that the in-vehicle device sends a parameter sending period status message according to the second period status message.
  • the base station sends a second system communication parameter to the in-vehicle device, so that the in-vehicle device performs reconfiguration according to the second system communication parameter.
  • the base station receives network idle information, where the network idle information indicates that the network idle parameter determined by the in-vehicle device satisfies a reporting trigger condition of the idle measurement event of the network.
  • the network idle indication parameter is used to indicate the idleness of the network environment in which the in-vehicle device is located; wherein the network idle indication parameter meets the reporting trigger condition of the idle measurement event of the network, and specifically includes one of the following:
  • the occupancy rate of the vehicle communication resource is less than the sixth threshold
  • the receiving success rate of the vehicle communication data packet is greater than a seventh threshold
  • the transmission waiting time of the vehicle communication data packet is less than the eighth threshold.
  • the reporting failure condition of the network idle measurement event may be that the vehicle communication resource occupancy rate measured during the monitoring time T is less than the network idle reporting threshold Thresh_low, that is, the network idle measurement event is triggered to be reported.
  • Thresh_low the network idle reporting threshold
  • Hys is the margin parameter related to the idle measurement event of the network
  • Ms is the measured value of the occupancy rate of the vehicle communication resource by the in-vehicle device.
  • the base station After satisfying the reporting trigger condition of the network idle measurement event, the base station establishes an RRC connection with the in-vehicle device, and receives network idle information sent by the in-vehicle device; the network idle information includes a CBR and/or a current PSM transmission parameter;
  • the CBR may be the occupancy rate of all the PRBs, and the PSM transmission parameters may include the PSM transmission power, the PSM transmission period, the PSM transmission frequency, the PSM transmission rate, and the PSM packet size.
  • the base station sends a third system communication parameter to the in-vehicle device according to the network idle information, so that the in-vehicle device performs reconfiguration according to the third system communication parameter.
  • the base station sends a third system communication parameter to the in-vehicle device according to the network idle information, and the VDC communication module in the in-vehicle device reconfigures the V2V communication parameter of the VDC communication module according to the third system communication parameter;
  • the third system communication parameter reduces network idleness with respect to the second system communication parameter; and specifically includes one or a combination of the following:
  • the system communication bandwidth indicated by the third system communication parameter is less than the system communication bandwidth indicated by the second system communication parameter
  • the number of subframe configurations indicated by the third system communication parameter is less than the number of subframe configurations indicated by the second system communication parameter.
  • the base station receives the network idle information, and sends the third system communication parameter to the in-vehicle device according to the network idle information, so that the in-vehicle device performs reconfiguration according to the third system communication parameter. Therefore, the idle control of the network idleness can effectively alleviate the network idle problem in the vehicle network, so as to rationally utilize the network resources and improve the stability of the idle control system.
  • the first-level idle control based on the network idle is implemented to perform secondary idle control on the network idle problem, and the following describes the secondary idle control of the network idle problem.
  • another communication method provided by the present invention Examples include:
  • the base station sends a configuration message to the in-vehicle device, so that the in-vehicle device determines configuration information.
  • the configuration information includes a first periodic state message sending parameter, a first system communication parameter, a network congestion measurement event reporting trigger condition, and a network idle measurement event. Reporting trigger condition;
  • the base station receives the network congestion information, where the network congestion information indicates that the network congestion parameter determined by the in-vehicle device satisfies the reporting trigger condition of the network congestion measurement event;
  • the base station sends a second period status message sending parameter to the in-vehicle device according to the network congestion information, so that the in-vehicle device sends a parameter sending period status message according to the second period status message.
  • the base station sends a second system communication parameter to the in-vehicle device, so that the in-vehicle device performs reconfiguration according to the second system communication parameter.
  • the base station receives network idle information, where the network idle information indicates that the network idle parameter determined by the in-vehicle device satisfies a reporting trigger condition of the idle measurement event of the network.
  • the base station sends a third system communication parameter to the in-vehicle device according to the network idle information, so that the in-vehicle device performs reconfiguration according to the third system communication parameter.
  • the base station sends a third period status message sending parameter to the in-vehicle device, so that the in-vehicle device sends a parameter sending period status message according to the third period status message.
  • the base station sends a third periodic state message sending parameter to the in-vehicle device, and the VDC communication module in the in-vehicle device re-transmits the parameter according to the third PSM.
  • the third system communication parameter reaching the fifth threshold includes at least one of the following two situations: the system communication bandwidth indicated by the third system communication parameter is reduced to a fifth lower limit value, and the subframe indicated by the third system communication parameter The number of configurations is reduced to the sixth lower limit.
  • the third periodic state message sending parameter reduces the network idleness with respect to the second periodic state message sending parameter; and specifically includes one or a combination of the following:
  • the periodic state message sending power included in the third periodic state message sending parameter is greater than the periodic state message sending power included in the second periodic state message sending parameter
  • the period information sending period included in the third period status message sending parameter is smaller than the period status message sending period included in the second period status message sending parameter
  • the periodicity message sending frequency included in the third periodic state message sending parameter is greater than the periodic state message sending frequency included in the second periodic state message sending parameter
  • the period information transmission rate included in the third period status message sending parameter is greater than the period status message transmission rate included in the second period status message sending parameter
  • the third period status message sending parameter includes a period status message length that is greater than a period status message length included in the second period status message sending parameter.
  • the base station when the third system communication parameter reaches the fifth threshold, the base station sends a third period status message sending parameter to the in-vehicle device, so that the in-vehicle device sends the parameter sending period according to the third period status message. Status message. Therefore, the secondary idle control can effectively alleviate the network idle problem in the car network, so as to rationally utilize the network resources and improve the stability of the idle control system.
  • the reporting trigger condition of the network congestion measurement event and the reporting trigger condition of the network idle measurement event in the foregoing embodiment may be configured to be based on a periodically triggered measurement event; specifically, an important parameter of the measurement event based on the periodic trigger
  • the measurement period T_C and the monitoring time T the in-vehicle device periodically reports the current network congestion indication parameter or the current network idle indication parameter to the base station according to the measurement period T_C, and the base station refers to the current network congestion indication parameter or the current network idle indication parameter to the network environment.
  • the specific process can refer to the above content, and will not be described in detail herein.
  • the vehicle is equipped with the in-vehicle device, which has two communication modules: one is a conventional LTE communication module for communication and interaction between the vehicle and the base station; the other is a VDC communication module for vehicles and vehicles.
  • Direct communication wherein the working frequency band of the VDC communication module may be a dedicated spectrum of direct communication of the vehicle and the vehicle, and may be a traditional LTE spectrum or an unlicensed spectrum; and the communication technology of the VDC communication module may be adopted in Europe and the United States.
  • the communication technology of 802.11p can also be a VDC communication technology based on LTE design.
  • the vehicle receives the configuration message sent by the base station by using the LTE communication module, and the configuration message may include a PSM transmission parameter, a system communication bandwidth, a subframe configuration, a report trigger condition configuration of the network congestion measurement event, and a report trigger condition of the network idle measurement event.
  • Configuration, etc. the important parameters of the reporting condition of the network congestion measurement event are the network congestion reporting threshold Thresh_high and the monitoring time T.
  • the important parameters of the reporting trigger condition of the network idle measurement event are the network idle reporting threshold Thresh_low and the monitoring time T.
  • the vehicle configures the V2V communication parameter of the VDC communication module, the reporting trigger condition of the network congestion measurement event, and the reporting trigger condition of the network idle measurement event by the VDC communication module according to the configuration message received by the LTE communication module, and performs V2V communication with other vehicles. .
  • the vehicle measures the occupancy rate of the vehicle communication resource, and detects whether the reporting trigger condition of the network congestion measurement event is met, or whether the reporting trigger condition of the network idle measurement event is met;
  • the reporting trigger condition of the network congestion measurement event is taken as an example.
  • the reporting trigger condition of the network congestion measurement event is the vehicle communication resource occupancy rate measured by the in-vehicle device in the vehicle during the monitoring time T. If the network congestion reporting threshold Thresh_high is greater than or equal to the network congestion triggering event, the network congestion measurement event is triggered. To avoid the ping-pong effect, consider defining the entry and exit conditions of the network congestion measurement event, eg,
  • Hys is the margin parameter related to the network congestion measurement event
  • Ms is the measured value of the vehicle equipment communication resource occupancy rate of the vehicle equipment.
  • the in-vehicle device in the vehicle After the reported triggering condition of the configured network congestion measurement event is met, the in-vehicle device in the vehicle initiates an RRC connection process, and establishes an RRC connection with the base station; after establishing an RRC connection with the base station, the in-vehicle device in the vehicle reports the CBR and/or to the base station.
  • the current PSM transmission parameter where CBR may be the occupancy rate of all PRBs, and the PSM transmission parameters may include PSM transmission power, PSM transmission period, PSM transmission frequency, PSM transmission rate, PSM packet size, and the like.
  • the base station After receiving the CBR and the current PSM transmission parameters reported by the vehicle in the cell, the base station comprehensively considers the load condition of the V2V communication resource in the cell and makes a decision on whether to perform network congestion control. Specifically, the base station first adjusts the PSM transmission parameters, where the adjustment process may include reducing the transmission power of the periodic status message, increasing the transmission period of the periodic status message, reducing the transmission frequency of the periodic status message, and reducing the periodic status message. The transmission rate, the message size of the periodic status message, and the like.
  • the base station sends the adjusted PSM transmission parameter to the vehicle in the cell coverage through the system broadcast message for collective congestion control, or sends the RRC dedicated signaling to the designated vehicle in the cell for individual congestion control;
  • the LTE communication module in the vehicle receives the base station
  • the PSM transmission parameter adjusted by the base station, the VDC communication module in the vehicle reconfigures the V2V communication parameter of the VDC communication module according to the adjusted PSM transmission parameter received by the LTE communication module, and sends the PSM to the surrounding vehicle, thereby Effectively alleviate network congestion in the Internet of Vehicles.
  • the base station When the base station adjusts the PSM transmission parameter of the vehicle in the cell to the upper limit of adjustment, the base station comprehensively considers the load condition of the V2V communication resource in the cell and makes a decision on whether to perform network congestion secondary control; specifically, the base station system
  • the communication parameters are adjusted, and the adjustment process may include increasing system communication bandwidth, increasing subframe configuration, and the like.
  • the base station sends the adjusted system communication parameter to the vehicle in the cell coverage through the system broadcast message for collective secondary congestion control, or sends the RRC dedicated signaling to the designated vehicle in the cell for separate secondary congestion control; the LTE communication in the vehicle
  • the module receives the system communication parameters adjusted by the base station and is adjusted by the base station, and the VDC communication module in the vehicle reconfigures the V2V communication parameters of the VDC communication module according to the adjusted system communication parameters received by the LTE communication module, thereby effectively alleviating Network congestion in the Internet of Vehicles.
  • the reporting trigger condition of the network idle measurement event is that the vehicle-mounted communication resource occupancy rate measured by the in-vehicle device in the vehicle during the monitoring time T is smaller than the network.
  • the idle reporting threshold Thresh_low triggers the reporting of network idle measurement events.
  • Hys is the margin parameter associated with the idle measurement event of the network
  • Ms is the vehicle-mounted device The measured value of the vehicle communication resource occupancy rate
  • the in-vehicle device in the vehicle After the reported triggering condition of the configured network idle measurement event is met, the in-vehicle device in the vehicle initiates an RRC connection process to establish an RRC connection with the base station; after establishing an RRC connection with the base station, the in-vehicle device in the vehicle reports the CBR and/or to the base station.
  • the current PSM transmission parameter where CBR may be the occupancy rate of all PRBs, and the PSM transmission parameters may include PSM transmission power, PSM transmission period, PSM transmission frequency, PSM transmission rate, PSM packet size, and the like.
  • the base station After receiving the CBR and the current PSM transmission parameters reported by the vehicle in the cell, the base station comprehensively considers the load condition of the V2V communication resource in the cell and makes a decision on whether to perform network idle control; specifically, the base station first adjusts the system communication parameters.
  • the adjustment process may include reducing system communication bandwidth, reducing the number of subframe configurations, and the like.
  • the base station sends the adjusted system communication parameter to the vehicle within the cell coverage through the system broadcast message to perform collective network idle control, or sends the RRC dedicated signaling to the designated vehicle in the cell for independent network idle control;
  • the LTE communication module in the vehicle receives The system communication parameters sent by the base station and adjusted by the base station, the VDC communication module in the vehicle reconfigures the V2V communication parameters of the VDC communication module according to the adjusted system communication parameters received by the LTE communication module, thereby effectively alleviating the vehicle networking
  • the problem of network idleness in order to achieve the effect of rational use of network resources.
  • the base station When the adjustment value of the system communication parameter of the base station reaches the lower limit of adjustment, the base station comprehensively considers the load condition of the V2V communication resource in the cell and makes a decision on whether to perform the network idle secondary control; specifically, the base station adjusts the PSM transmission parameter.
  • the adjusting process may include increasing the sending power of the periodic status message, reducing the sending period of the periodic status message, increasing the sending frequency of the periodic status message, increasing the transmission rate of the periodic status message, and increasing the message size of the periodic status message. Wait.
  • the base station sends the adjusted PSM transmission parameter to the vehicle in the cell coverage through the system broadcast message for collective network idle control, or sends the RRC dedicated signaling to the designated vehicle in the cell for individual network idle control;
  • the LTE communication module in the vehicle receives The PSM transmission parameter sent by the base station and adjusted by the base station, the VDC communication module in the vehicle reconfigures the V2V communication parameter of the VDC communication module according to the adjusted PSM transmission parameter received by the LTE communication module, and sends the PSM to the surrounding vehicle. So as to effectively alleviate the network idle problem in the Internet of Vehicles, in order to achieve the effect of rational use of network resources.
  • the reporting trigger condition of the measurement event can be configured to be based on the periodically triggered measurement event; specifically, the important parameter based on the periodically triggered measurement event is the measurement period T_C and the monitoring time T, and the in-vehicle device periodically according to the measurement period T_C.
  • the current network congestion indication parameter or the current network idle indication parameter is reported to the base station, and the base station controls the network environment for the current network congestion indication parameter or the current network idle indication parameter.
  • a timer is set in the in-vehicle device, and the timer is set to be 30 seconds.
  • the in-vehicle device reports the CBR and/or the current PSM transmission parameter to the base station every 30 seconds, and the base station receives the report reported by the vehicle in the cell. After the CBR and the current PSM send the parameters, the load of the V2V communication resources in the cell is comprehensively considered and the network congestion control or the network idle control is determined. The specific process is not described here.
  • an embodiment of the in-vehicle device provided by the present invention includes:
  • the first determining unit 1201 is configured to determine configuration information, where the configuration information includes a first periodic state message sending parameter and a reporting trigger condition of the network congestion measurement event;
  • a second determining unit 1202 configured to determine a network congestion indication parameter, where the network congestion indication parameter is used to indicate a congestion level of a network environment where the in-vehicle device is located;
  • the first reporting unit 1203 is configured to report network congestion information to the base station when the network congestion indication parameter satisfies the reporting trigger condition of the network congestion measurement event;
  • the first receiving unit 1204 is configured to receive a second periodic state message sending parameter that is sent by the base station according to the network congestion information, where the second periodic state message sending parameter reduces a network congestion level with respect to the first periodic state message sending parameter;
  • the first sending unit 1205 is configured to send a parameter sending period status message according to the second period status message.
  • the second period status message sending parameter reduces the network congestion level relative to the first period status message sending parameter, including one or a combination of the following:
  • the periodic state message sending power included in the second periodic state message sending parameter is smaller than the periodic state message sending power included in the first periodic state message sending parameter
  • the period information sending period included in the second period status message sending parameter is greater than the period status message sending period included in the first period status message sending parameter
  • the periodicity message sending frequency included in the second periodic state message sending parameter is smaller than the periodic state message sending frequency included in the first periodic state message sending parameter
  • the period information transmission rate included in the second period status message sending parameter is smaller than the period status message transmission rate included in the first period status message sending parameter
  • the second periodic status message sending parameter includes a period status message length that is smaller than a period status message length included in the first period status message sending parameter.
  • the first determining unit 1201 is specifically configured to receive a configuration message sent by the base station by using a system broadcast to determine the configuration information;
  • the first determining unit 1201 is specifically configured to receive a configuration message sent by the base station by using radio resource control dedicated signaling to determine the configuration information; or
  • the first determining unit 1201 is specifically configured to determine the configuration information by using a pre-configuration.
  • the reporting condition that the network congestion indication parameter meets the network congestion measurement event specifically includes one of the following:
  • the occupancy rate of the vehicle communication resource is greater than or equal to the first threshold
  • Receiving a success rate of the vehicle communication data packet is less than or equal to a second threshold during the first time period
  • the waiting time for sending the vehicle communication data packet is greater than or equal to the third threshold.
  • the reporting condition of the network congestion measurement event may be that the vehicle communication resource occupancy rate measured during the monitoring time T is greater than or equal to the network congestion reporting threshold Thresh_high, that is, the network congestion measurement event is triggered to be reported.
  • Thresh_high the network congestion reporting threshold
  • Hys is the margin parameter related to the network congestion measurement event
  • Ms is the measured value of the vehicle equipment communication resource occupancy rate of the vehicle equipment.
  • the first reporting unit 1203 reports network congestion information to the base station when the network congestion indication parameter meets the reporting trigger condition of the network congestion measurement event;
  • the first receiving unit 1204 Receive a second periodic state message sending parameter that is sent by the base station according to the network congestion information, where the second periodic state message sending parameter reduces a network congestion level with respect to the first periodic state message sending parameter;
  • the first sending unit 1205 is configured according to the The second periodic status message sends a parameter transmission period status message.
  • the configuration information further includes a first system communication parameter, where the first system communication parameter includes a system communication bandwidth and/or a subframe configuration quantity, as shown in FIG.
  • the equipment also includes:
  • the second receiving unit 1301 is configured to receive, when the sending parameter of the second periodic state message reaches a fourth threshold, a second system communication parameter sent by the base station, where the second system communication parameter is relative to the first system communication parameter Reduce the degree of network congestion;
  • the first reconfiguration unit 1302 is configured to perform reconfiguration according to the second system communication parameter.
  • the second system communication parameter reduces the network congestion level relative to the first system communication parameter, including one or a combination of the following:
  • the system communication bandwidth indicated by the second system communication parameter is greater than the system communication bandwidth indicated by the first system communication parameter
  • the number of subframe configurations indicated by the second system communication parameter is greater than the number of subframe configurations indicated by the first system communication parameter.
  • the sending of the second periodic state message to the fourth threshold includes at least one of the following five cases: the transmit power of the second periodic state message is reduced to a first lower limit value, and the second periodic state message is sent. Increase to a first upper limit value, the transmission frequency of the second periodic state message decreases to a second lower limit value, the transmission rate of the second periodic state message decreases to a third lower limit value, and the second periodic state The message size of the message is reduced to the fourth lower limit.
  • the second receiving unit 1301 receives the second system communication parameter sent by the base station when the sending parameter of the second periodic state message reaches the fourth threshold, and the first reconfiguration unit 1302 communicates according to the second system.
  • the parameters are reconfigured. Therefore, the secondary congestion control can effectively alleviate the network congestion problem in the vehicle network and improve the stability of the congestion control system.
  • the in-vehicle device further includes:
  • a third determining unit 1401, configured to determine a network idle indication parameter, where the network idle indication parameter is used to indicate an idle degree of a network environment where the in-vehicle device is located;
  • the second reporting unit 1402 is configured to report network idle information to the base station when the network idle indication parameter satisfies the reporting trigger condition of the network idle measurement event;
  • the fourth receiving unit 1403 is configured to receive a third system communication parameter that is sent by the base station according to the network idle information, where the third system communication parameter reduces a network idle degree with respect to the second system communication parameter;
  • the second reconfiguration unit 1404 is configured to perform reconfiguration according to the third system communication parameter.
  • reporting triggering condition that the network idle indication parameter meets the idle measurement event of the network may include any one of the following three implementation manners:
  • the occupancy rate of the vehicle communication resource is less than the sixth threshold
  • the receiving success rate of the vehicle communication data packet is greater than a seventh threshold
  • the transmission waiting time of the vehicle communication data packet is less than the eighth threshold.
  • the reporting failure condition of the network idle measurement event may be that the vehicle communication resource occupancy rate measured during the monitoring time T is less than the network idle reporting threshold Thresh_low, that is, the network idle measurement event is triggered to be reported.
  • Thresh_low the network idle reporting threshold
  • Hys is the margin parameter related to the idle measurement event of the network
  • Ms is the measured value of the occupancy rate of the vehicle communication resource by the in-vehicle device.
  • the second reporting unit 1402 reports the network idle information to the base station when the network idle indication parameter satisfies the reporting trigger condition of the network idle measurement event, and the fourth receiving unit 1403 receives the idle information of the base station according to the network.
  • the transmitted third system communication parameter wherein the third system communication parameter reduces network idleness relative to the second system communication parameter; the second reconfiguration unit 1404 performs reconfiguration according to the third system communication parameter.
  • the in-vehicle device further includes:
  • the fifth receiving unit 1501 is configured to receive, when the third system communication parameter reaches the fifth threshold, a third periodic state message sending parameter sent by the base station, where the third period state message sending parameter is relative to the second period state.
  • the message sending parameter reduces the network idleness
  • the second sending unit 1502 is configured to send a parameter sending period status message according to the third period status message.
  • the fifth receiving unit 1501 receives the third periodic state message sending parameter sent by the base station when the third system communication parameter reaches the fifth threshold, and the second sending unit 1502 sends the third periodic state message according to the third periodic state message.
  • the parameter sends a periodic status message. Therefore, the secondary idle control can effectively alleviate the network idle problem in the car network, so as to rationally utilize the network resources and improve the stability of the idle control system.
  • FIG. 12 to FIG. 15 illustrates the specific structure of the in-vehicle device from the perspective of the functional unit.
  • the specific structure of the in-vehicle device will be described from the hardware point of view below with reference to the embodiment shown in FIG.
  • the in-vehicle device includes a receiver 1601, a transmitter 1602, a processor 1603, and a memory 1604.
  • the user equipment may have more or less components than those shown in FIG. 16, may combine two or more components, or may have different component configurations or settings, and each component may include Hardware, software, or a combination of hardware and software implementations of one or more signal processing and/or application specific integrated circuits.
  • the processor 1603 is configured to read an instruction stored in the memory 1604 to perform the following operations:
  • Determining configuration information where the configuration information includes a first periodic status message sending parameter and a reporting trigger condition of the network congestion measurement event;
  • a parameter transmission cycle status message is sent according to the second cycle status message.
  • the configuration information further includes a first system communication parameter, where the first system communication parameter includes a system communication bandwidth and/or a subframe configuration quantity, and the processor 1603 is further configured to:
  • Reconfiguration is performed according to the second system communication parameter.
  • the configuration information further includes a report triggering condition of the network idle measurement event, where the processor 1603 is further configured to perform the following operations:
  • the network idle indication parameter is used to indicate an idle degree of a network environment in which the in-vehicle device is located;
  • Reconfiguration is performed according to the third system communication parameter.
  • processor 1603 is further configured to perform the following operations:
  • a parameter transmission cycle status message is sent according to the third cycle status message.
  • the processor 1603 reports network congestion information to the base station when the network congestion indication parameter satisfies the reporting trigger condition of the network congestion measurement event, and the processor 1603 receives the second information sent by the base station according to the network congestion information.
  • the periodic status message sends the parameters and according to the second week
  • the status message sends a parameter transmission period status message.
  • an embodiment of the base station device provided by the present invention includes:
  • the first sending module 1701 is configured to send a configuration message to the in-vehicle device, so that the in-vehicle device determines configuration information, where the configuration information includes a first periodic state message sending parameter and a reporting trigger condition of the network congestion measurement event;
  • the first receiving module 1702 is configured to receive network congestion information, where the network congestion parameter indicates that the network congestion parameter determined by the in-vehicle device meets a reporting trigger condition of the network congestion measurement event, where the network congestion parameter is used to indicate the in-vehicle device The degree of congestion in the network environment;
  • the second sending module 1703 is configured to send, according to the network congestion information, a second periodic state message sending parameter to the in-vehicle device, so that the in-vehicle device sends a parameter sending period status message according to the second period status message; wherein the second period is The status message sending parameter reduces the degree of network congestion relative to the first period status message sending parameter.
  • the second period status message sending parameter reduces the network congestion level relative to the first period status message sending parameter, including one or a combination of the following:
  • the periodic state message sending power included in the second periodic state message sending parameter is smaller than the periodic state message sending power included in the first periodic state message sending parameter
  • the period information sending period included in the second period status message sending parameter is greater than the period status message sending period included in the first period status message sending parameter
  • the periodicity message sending frequency included in the second periodic state message sending parameter is smaller than the periodic state message sending frequency included in the first periodic state message sending parameter
  • the period information transmission rate included in the second period status message sending parameter is smaller than the period status message transmission rate included in the first period status message sending parameter
  • the second periodic status message sending parameter includes a period status message length that is smaller than a period status message length included in the first period status message sending parameter.
  • the first sending module 1701 has a function for sending a configuration message to the in-vehicle device through a system broadcast;
  • the first sending module 1701 is specifically configured to send a configuration message to the in-vehicle device by using radio resource control dedicated signaling.
  • the reporting condition that the network congestion indication parameter meets the network congestion measurement event specifically includes one of the following:
  • the occupancy rate of the vehicle communication resource is greater than or equal to the first threshold
  • Receiving a success rate of the vehicle communication data packet is less than or equal to a second threshold during the first time period
  • the waiting time for sending the vehicle communication data packet is greater than or equal to the third threshold.
  • the reporting condition of the network congestion measurement event may be that the vehicle communication resource occupancy rate measured during the monitoring time T is greater than or equal to the network congestion reporting threshold Thresh_high, that is, the network congestion measurement event is triggered to be reported.
  • Thresh_high the network congestion reporting threshold
  • Hys is the margin parameter related to the network congestion measurement event
  • Ms is the measured value of the vehicle equipment communication resource occupancy rate of the vehicle equipment.
  • the first sending module 1701 sends a configuration message to the in-vehicle device, so that the in-vehicle device determines the configuration information; the first receiving module 1702 receives the network congestion information; and the second sending module 1703 sends the configuration information to the in-vehicle according to the network congestion information.
  • the device sends a second period status message sending parameter, so that the in-vehicle device sends a parameter sending period status message according to the second period status message.
  • the configuration information further includes a first system communication parameter, where the first system communication parameter includes a system communication bandwidth and/or a subframe configuration quantity, as shown in FIG. 18.
  • the base station device further includes:
  • a third sending module 1801 configured to send, when the sending parameter of the second periodic state message reaches a fourth threshold, a second system communication parameter to the in-vehicle device, so that the in-vehicle device is configured according to the second system
  • the communication parameters are reconfigured; wherein the second system communication parameter reduces network congestion relative to the first system communication parameter.
  • the sending of the second periodic state message to the fourth threshold includes at least one of the following five situations: the sending power of the second periodic state message is reduced to the first lower limit, and the second period The sending period of the status message is increased to the first upper limit value, the sending frequency of the second period status message is decreased to the second lower limit value, and the transmission rate of the second period status message is decreased to the third lower limit value, The message size of the second periodic status message is reduced to a fourth lower limit value.
  • the reducing the network congestion level of the second system communication parameter relative to the first system communication parameter includes one or a combination of the following:
  • the system communication bandwidth indicated by the second system communication parameter is greater than the system communication bandwidth indicated by the first system communication parameter
  • the number of subframe configurations indicated by the second system communication parameter is greater than the number of subframe configurations indicated by the first system communication parameter.
  • the third sending module 1801 when the sending parameter of the second periodic state message reaches the fourth threshold, the third sending module 1801 sends the second system communication parameter to the in-vehicle device, so that the in-vehicle device according to the second system communication parameter Perform reconfiguration. Therefore, the secondary congestion control can effectively alleviate the network congestion problem in the vehicle network and improve the stability of the congestion control system.
  • the base station device further includes:
  • the second receiving module 1901 is configured to receive network idle information, where the network idle parameter indicates that the network idle parameter determined by the in-vehicle device satisfies a reporting trigger condition of the network idle measurement event, where the network idle parameter is used to indicate the in-vehicle device The degree of idleness of the network environment in which it is located;
  • the fourth sending module 1902 is configured to send, according to the network idle information, a third system communication parameter to the in-vehicle device, so that the in-vehicle device performs reconfiguration according to the third system communication parameter; wherein the third system communication parameter is relative to the The second system communication parameter reduces the degree of network idleness.
  • reporting triggering condition that the network idle indication parameter meets the idle measurement event of the network may include any one of the following three implementation manners:
  • the occupancy rate of the vehicle communication resource is less than the sixth threshold
  • the receiving success rate of the vehicle communication data packet is greater than a seventh threshold
  • the transmission waiting time of the vehicle communication data packet is less than the eighth threshold.
  • the reporting failure condition of the network idle measurement event may be that the vehicle communication resource occupancy rate measured during the monitoring time T is less than the network idle reporting threshold Thresh_low, that is, the network idle measurement event is triggered to be reported.
  • Thresh_low the network idle reporting threshold
  • Hys is the margin parameter related to the idle measurement event of the network
  • Ms is the measured value of the occupancy rate of the vehicle communication resource by the in-vehicle device.
  • the second receiving module 1901 receives the network idle information
  • the fourth sending module 1902 sends the third system communication parameter to the in-vehicle device according to the network idle information, so that the in-vehicle device performs the third system communication parameter according to the third system communication parameter.
  • the idle control of the network idleness can effectively alleviate the network idle problem in the vehicle network, so as to rationally utilize the network resources and improve the stability of the idle control system.
  • the base station device further includes:
  • the fifth sending module 2001 is configured to: when the third system communication parameter reaches the fifth threshold, send a third period status message sending parameter to the in-vehicle device, so that the in-vehicle device sends the parameter sending period according to the third period status message. a status message; wherein the third periodic status message sending parameter reduces network idleness relative to the second period status message sending parameter.
  • the fifth sending module 2001 when the third system communication parameter reaches the fifth threshold, the fifth sending module 2001 sends a third period status message sending parameter to the in-vehicle device, so that the in-vehicle device sends the message according to the third period status message.
  • the parameter sends a periodic status message. Therefore, the secondary idle control can effectively alleviate the network idle problem in the car network, so as to rationally utilize the network resources and improve the stability of the idle control system.
  • FIG. 17 to 20 performs the specific structure of the base station device from the perspective of the functional unit.
  • the following describes the specific structure of the base station device from the hardware point of view in conjunction with the embodiment shown in FIG. 21:
  • the base station device includes a receiver 2101, a transmitter 2102, a processor 2103, and a memory 2104.
  • the user equipment may have more or less components than those shown in FIG. 21, may combine two or more components, or may have different component configurations or settings, and each component may include Hardware, software, or a combination of hardware and software implementations of one or more signal processing and/or application specific integrated circuits.
  • the processor 2103 is configured to read an instruction stored in the memory 2104 to perform the following operations:
  • the configuration information includes a first periodic state message sending parameter and a reporting trigger condition of the network congestion measurement event;
  • the network congestion parameter indicating that the network congestion parameter determined by the in-vehicle device meets a reporting trigger condition of the network congestion measurement event, where the network congestion parameter is used to indicate a congestion degree of a network environment where the in-vehicle device is located;
  • the configuration information further includes a first system communication parameter, where the first system communication parameter includes a system communication bandwidth and/or a subframe configuration quantity, and the processor 2103 is further configured to:
  • the sending parameter of the second periodic state message reaches the fourth threshold, sending the second system communication parameter to the in-vehicle device, so that the in-vehicle device performs reconfiguration according to the second system communication parameter; wherein the second system communication parameter The degree of network congestion is reduced relative to the first system communication parameters.
  • the configuration information further includes a reporting triggering condition of the network idle measurement event, where the processor 2103 is further configured to perform the following operations:
  • the network idle parameter indicating that the network idle parameter determined by the in-vehicle device meets a reporting trigger condition of the network idle measurement event, wherein the network idle parameter is used to indicate the idleness of the network environment in which the in-vehicle device is located;
  • processor 2103 is further configured to perform the following operations:
  • the processor 2103 sends a configuration message to the in-vehicle device, so that the in-vehicle device determines the configuration information; the processor 2103 receives the network congestion information, and sends a second periodic status message to the in-vehicle device according to the network congestion information. And a parameter, so that the in-vehicle device sends a parameter sending period status message according to the second period status message.
  • global congestion control is implemented for network congestion, which effectively alleviates the network congestion problem in the vehicle network and improves the stability of the congestion control system.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. in.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

Landscapes

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

Abstract

本发明实施例提供了一种通信方法及相关设备，本发明实施例方法包括：车载设备确定配置信息，该配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；车载设备确定网络拥塞指示参数，该网络拥塞指示参数用于指示该车载设备所处网络环境的拥塞程度；当网络拥塞指示参数满足网络拥塞测量事件的上报触发条件时，该车载设备向该基站上报网络拥塞信息；该车载设备接收该基站根据该网络拥塞信息发送的第二周期状态消息发送参数，其中该第二周期状态消息发送参数相对于该第一周期状态消息发送参数降低网络拥塞程度；车载设备根据该第二周期状态消息发送参数发送周期状态消息。本发明实施例能够有效的缓解车联网中的网络拥塞问题。

Description

一种通信方法及相关设备 技术领域
本发明涉及通信技术领域，特别涉及一种通信方法及相关设备。
背景技术
随着经济的不断发展，科技水平的不断提高，交通业的发展十分迅速，汽车已逐渐融入人们日常生活中，成为一种必不可少的交通工具。在汽车给生活带来便捷的同时，车辆数目增大而引起的交通安全问题和交通事故也日益严峻，同时交通堵塞和环境污染问题在城市中也日益严重。
为缓解高密场景下潜在的拥塞问题，欧洲车联网在ETSI(European Telecommunications Standards Institution，欧洲电信标准协会)TS 102 687中定义了分布式拥塞控制机制(DCC，Decentralized Congestion Control)。具体的，车辆会周期性的监测ITS(Intelligent Transport System，智能运输系统)G5A上三个信道的CBR(Channel Busy Ratio，信道忙闲程度)，并根据监测到的CBR值和当前DCC的参数配置对各信道进行状态转移。
欧洲DCC机制提供了一种分布式的拥塞控制算法，每辆车通过局部感知其周围传输信道的忙闲，维护个信道状态转移，并动态调整其安全消息在各信道上的分流比例。这种技术存在以下缺点：
1、容错性差：DCC规定车辆通过局部监测信道忙闲独立进行信道状态转移和拥塞控制。因此，车辆信道监测模块的精度将直接影响拥塞控制的有效性。某辆车对信道忙闲的错误判断将直接影响其周围车辆测量信道状态的精度，这将直接影响这个系统的性能；
2、有效性差：DCC机制的相关信道状态转移参数设置跟DCC机制的性能有直接的关系。不当的参数设置可能导致车辆在不同信道状态之间来回振荡，增加系统的不稳定性。而且，系统整体拥塞控制的性能也需要对DCC参数进行详细微调，机制复杂；
3、灵活性差：欧洲车联网规定传输CAM(Cooperative-Awareness Message，交互状态信息)消息的通信资源是ITS-G5A固定的30M频带。当所有信道都处于拥塞状态时，部分被分流的CAM消息会被丢弃，导致无法满足应用层的 需求。这直接影响车车安全消息互通的及时性，造成安全隐患。
发明内容
本发明实施例提供了一种通信方法及相关设备，能够有效的缓解车联网中的网络拥塞问题。
本发明第一方面提供了一种通信方法，包括：
车载设备确定配置信息，所述配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
所述车载设备确定网络拥塞指示参数，所述网络拥塞指示参数用于指示所述车载设备所处网络环境的拥塞程度；
当所述网络拥塞指示参数满足所述网络拥塞测量事件的上报触发条件时，所述车载设备向所述基站上报网络拥塞信息；
所述车载设备接收所述基站根据所述网络拥塞信息发送的第二周期状态消息发送参数，其中所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度；
所述车载设备根据所述第二周期状态消息发送参数发送周期状态消息。
结合本发明的第一方面，在本发明第一方面的第一种实现方式中，所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度包括以下之一或者组合：
所述第二周期状态消息发送参数包括的周期状态消息发送功率小于所述第一周期状态消息发送参数包括的周期状态消息发送功率；
所述第二周期状态消息发送参数包括的周期状态消息发送周期大于所述第一周期状态消息发送参数包括的周期状态消息发送周期；
所述第二周期状态消息发送参数包括的周期状态消息发送频率小于所述第一周期状态消息发送参数包括的周期状态消息发送频率；
所述第二周期状态消息发送参数包括的周期状态消息传输速率小于所述第一周期状态消息发送参数包括的周期状态消息传输速率；
所述第二周期状态消息发送参数包括的周期状态消息长度小于所述第一周期状态消息发送参数包括的周期状态消息长度。
结合本发明的第一方面，在本发明第一方面的第二种实现方式中，所述车 载设备确定配置信息具体包括以下之一：
所述车载设备接收基站通过系统广播发送的配置消息，以确定所述配置信息；
所述车载设备接收基站通过无线资源控制专用信令发送的配置消息，以确定所述配置信息；
所述车载设备通过预配置确定所述配置信息。
结合本发明的第一方面、或第一方面的第一种实现方式、或第一方面的第二种实现方式，在本发明第一方面的第三种实现方式中，所述网络拥塞指示参数满足所述网络拥塞测量事件的上报触发条件具体包括：
在第一时间段内，车车通信资源占用率大于或等于第一阈值。
结合本发明第一方面的第三种实现方式，在本发明第一方面的第四种实现方式中，所述方法还包括：
当在所述第一时间段内，所述车车通信资源占用率小于所述第一阈值时，所述车载设备停止向所述基站上报网络拥塞信息。
结合本发明的第一方面、或第一方面的第一种实现方式、或第一方面的第二种实现方式，在本发明第一方面的第五种实现方式中，所述网络拥塞指示参数满足所述网络拥塞测量事件的上报触发条件具体包括：
在第一时间段内，车车通信数据包的接收成功率小于或等于第二阈值。
结合本发明第一方面的第五种实现方式，在本发明第一方面的第六种实现方式中，所述方法还包括：
当在所述第一时间段内，所述车车通信数据包的接收成功率大于所述第二阈值时，所述车载设备停止向所述基站上报网络拥塞信息。
结合本发明的第一方面、或第一方面的第一种实现方式、或第一方面的第二种实现方式，在本发明第一方面的第七种实现方式中，所述网络拥塞指示参数满足所述网络拥塞测量事件的上报触发条件具体包括：
在第一时间段内，车车通信数据包的发送等待时长大于或等于第三阈值。
结合本发明第一方面的第七种实现方式，在本发明第一方面的第八种实现方式中，所述方法还包括：
当在所述第一时间段内，所述车车通信数据包的发送等待时长小于所述第 三阈值时，所述车载设备停止向所述基站上报网络拥塞信息。
结合本发明的第一方面、或第一方面的第一种实现方式、或第一方面的第二种实现方式，在本发明第一方面的第九种实现方式中，所述配置信息还包括第一系统通信参数，所述第一系统通信参数包括系统通信带宽和/或子帧配置数量，所述方法还包括：
当所述第二周期状态消息发送参数达到第四阈值时，所述车载设备接收所述基站发送的第二系统通信参数，其中所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程度；
所述车载设备根据所述第二系统通信参数进行重配。
结合本发明第一方面的第九种实现方式，在本发明第一方面的第十种实现方式中，所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程度包括以下之一或者组合：
所述第二系统通信参数指示的系统通信带宽大于所述第一系统通信参数指示的系统通信带宽；
所述第二系统通信参数指示的子帧配置数量大于所述第一系统通信参数指示的子帧配置数量。
结合本发明第一方面的第九种实现方式，在本发明第一方面的第十一种实现方式中，所述第二周期状态消息发送参数达到第四阈值包括如下五种情况中至少一种：所述第二周期状态消息的发送功率减小到第一下限值、所述第二周期状态消息的发送周期增大到第一上限值、所述第二周期状态消息的发送频率减小到第二下限值、所述第二周期状态消息的传输速率减小到第三下限值、所述第二周期状态消息的消息大小减小到第四下限值。
结合本发明第一方面的第九种实现方式，在本发明第一方面的第十二种实现方式中，所述配置信息还包括网络空闲测量事件的上报触发条件，所述方法还包括：
所述车载设备确定网络空闲指示参数，所述网络空闲指示参数用于指示所述车载设备所处网络环境的空闲程度；
当所述网络空闲指示参数满足所述网络空闲测量事件的上报触发条件时，所述车载设备向所述基站上报网络空闲信息；
所述车载设备接收所述基站根据所述网络空闲信息发送的第三系统通信参数，其中所述第三系统通信参数相对于所述第二系统通信参数降低网络空闲程度；
所述车载设备根据所述第三系统通信参数进行重配。
结合本发明第一方面的第十二种实现方式，在本发明第一方面的第十三种实现方式中，所述方法还包括：
当所述第三系统通信参数达到第五阈值时，所述车载设备接收所述基站发送的第三周期状态消息发送参数，其中所述第三周期状态消息发送参数相对于所述第二周期状态消息发送参数降低网络空闲程度；
所述车载设备根据所述第三周期状态消息发送参数发送周期状态消息。
本发明第二方面提供了一种通信方法，包括：
基站向车载设备发送配置消息，以使所述车载设备确定配置信息；所述配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
所述基站接收网络拥塞信息，所述网络拥塞信息指示所述车载设备确定的网络拥塞参数满足了所述网络拥塞测量事件的上报触发条件，其中，所述网络拥塞参数用于指示所述车载设备所处网络环境的拥塞程度；
所述基站根据所述网络拥塞信息向所述车载设备发送第二周期状态消息发送参数，以使所述车载设备根据所述第二周期状态消息发送参数发送周期状态消息；其中所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度。
结合本发明的第二方面，在本发明第二方面的第一种实现方式中，所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度包括以下之一或者组合：
所述第二周期状态消息发送参数包括的周期状态消息发送功率小于所述第一周期状态消息发送参数包括的周期状态消息发送功率；
所述第二周期状态消息发送参数包括的周期状态消息发送周期大于所述第一周期状态消息发送参数包括的周期状态消息发送周期；
所述第二周期状态消息发送参数包括的周期状态消息发送频率小于所述第一周期状态消息发送参数包括的周期状态消息发送频率；
所述第二周期状态消息发送参数包括的周期状态消息传输速率小于所述第一周期状态消息发送参数包括的周期状态消息传输速率；
所述第二周期状态消息发送参数包括的周期状态消息长度小于所述第一周期状态消息发送参数包括的周期状态消息长度。
结合本发明的第二方面，在本发明第二方面的第二种实现方式中，所述基站向车载设备发送配置消息具体包括以下之一：
所述基站通过系统广播向所述车载设备发送配置消息；
所述基站通过无线资源控制专用信令向所述车载设备发送配置消息。
结合本发明的第二方面、或第二方面的第一种实现方式、或第二方面的第二种实现方式，在本发明第二方面的第三种实现方式中，所述网络拥塞信息为在第一时间段内，车车通信资源占用率大于或等于第一阈值时发送的。
结合本发明的第二方面、或第二方面的第一种实现方式、或第二方面的第二种实现方式，在本发明第二方面的第四种实现方式中，所述网络拥塞信息为在第一时间段内，车车通信数据包的接收成功率小于或等于第二阈值时发送的。
结合本发明的第二方面、或第二方面的第一种实现方式、或第二方面的第二种实现方式，在本发明第二方面的第五种实现方式中，所述网络拥塞信息为在第一时间段内，车车通信数据包的发送等待时长大于或等于第三阈值时发送的。
结合本发明的第二方面、或第二方面的第一种实现方式、或第二方面的第二种实现方式，在本发明第二方面的第六种实现方式中，所述配置信息还包括第一系统通信参数，所述第一系统通信参数包括系统通信带宽和/或子帧配置数量，所述方法还包括：
当所述第二周期状态消息发送参数达到第四阈值时，所述基站向所述车载设备发送第二系统通信参数，以使所述车载设备根据所述第二系统通信参数进行重配；其中所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程度。
结合本发明第二方面的第六种实现方式，在本发明第二方面的第七种实现方式中，所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程 度包括以下之一或者组合：
所述第二系统通信参数指示的系统通信带宽大于所述第一系统通信参数指示的系统通信带宽；
所述第二系统通信参数指示的子帧配置数量大于所述第一系统通信参数指示的子帧配置数量。
结合本发明第二方面的第六种实现方式，在本发明第二方面的第八种实现方式中，所述第二周期状态消息发送参数达到第四阈值包括如下五种情况中至少一种：所述第二周期状态消息的发送功率减小到第一下限值、所述第二周期状态消息的发送周期增大到第一上限值、所述第二周期状态消息的发送频率减小到第二下限值、所述第二周期状态消息的传输速率减小到第三下限值、所述第二周期状态消息的消息大小减小到第四下限值。
结合本发明第二方面的第六种实现方式，在本发明第二方面的第九种实现方式中，所述配置信息还包括网络空闲测量事件的上报触发条件，所述方法还包括：
所述基站接收网络空闲信息，所述网络空闲信息指示所述车载设备确定的网络空闲参数满足了所述网络空闲测量事件的上报触发条件，其中，所述网络空闲参数用于指示所述车载设备所处网络环境的空闲程度；
所述基站根据所述网络空闲信息向所述车载设备发送第三系统通信参数，以使所述车载设备根据所述第三系统通信参数进行重配；其中所述第三系统通信参数相对于所述第二系统通信参数降低网络空闲程度。
结合本发明第二方面的第九种实现方式，在本发明第二方面的第十种实现方式中，所述方法还包括：
当所述第三系统通信参数达到第五阈值时，所述基站向所述车载设备发送第三周期状态消息发送参数，以使所述车载设备根据所述第三周期状态消息发送参数发送周期状态消息；其中所述第三周期状态消息发送参数相对于所述第二周期状态消息发送参数降低网络空闲程度。
本发明第三方面提供了一种车载设备，包括：
第一确定单元，用于确定配置信息，所述配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
第二确定单元，用于确定网络拥塞指示参数，所述网络拥塞指示参数用于指示所述车载设备所处网络环境的拥塞程度；
第一上报单元，用于在所述网络拥塞指示参数满足所述网络拥塞测量事件的上报触发条件时，向所述基站上报网络拥塞信息；
第一接收单元，用于接收所述基站根据所述网络拥塞信息发送的第二周期状态消息发送参数，其中所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度；
第一发送单元，用于根据所述第二周期状态消息发送参数发送周期状态消息。
结合本发明的第三方面，在本发明第三方面的第一种实现方式中，所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度包括以下之一或者组合：
所述第二周期状态消息发送参数包括的周期状态消息发送功率小于所述第一周期状态消息发送参数包括的周期状态消息发送功率；
所述第二周期状态消息发送参数包括的周期状态消息发送周期大于所述第一周期状态消息发送参数包括的周期状态消息发送周期；
所述第二周期状态消息发送参数包括的周期状态消息发送频率小于所述第一周期状态消息发送参数包括的周期状态消息发送频率；
所述第二周期状态消息发送参数包括的周期状态消息传输速率小于所述第一周期状态消息发送参数包括的周期状态消息传输速率；
所述第二周期状态消息发送参数包括的周期状态消息长度小于所述第一周期状态消息发送参数包括的周期状态消息长度。
结合本发明的第三方面，在本发明第三方面的第二种实现方式中，
所述第一确定单元具体用于接收基站通过系统广播发送的配置消息，以确定所述配置信息；或，
所述第一确定单元具体用于接收基站通过无线资源控制专用信令发送的配置消息，以确定所述配置信息；或，
所述第一确定单元具体用于通过预配置确定所述配置信息。
结合本发明的第三方面、或第三方面的第一种实现方式、或第三方面的第 二种实现方式，在本发明第三方面的第三种实现方式中，所述配置信息还包括第一系统通信参数，所述第一系统通信参数包括系统通信带宽和/或子帧配置数量，所述设备还包括：
第二接收单元，用于在所述第二周期状态消息的发送参数达到第四阈值时，接收所述基站发送的第二系统通信参数，其中所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程度；
第一重配单元，用于根据所述第二系统通信参数进行重配。
结合本发明第三方面的第三种实现方式，在本发明第三方面的第四种实现方式中，所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程度包括以下之一或者组合：
所述第二系统通信参数指示的系统通信带宽大于所述第一系统通信参数指示的系统通信带宽；
所述第二系统通信参数指示的子帧配置数量大于所述第一系统通信参数指示的子帧配置数量。
结合本发明第三方面的第三种实现方式，在本发明第三方面的第五种实现方式中，所述第二周期状态消息的发送参数达到第四阈值包括如下五种情况中至少一种：所述第二周期状态消息的发送功率减小到第一下限值、所述第二周期状态消息的发送周期增大到第一上限值、所述第二周期状态消息的发送频率减小到第二下限值、所述第二周期状态消息的传输速率减小到第三下限值、所述第二周期状态消息的消息大小减小到第四下限值。
结合本发明第三方面的第三种实现方式，在本发明第三方面的第六种实现方式中，所述配置信息还包括网络空闲测量事件的上报触发条件，所述设备还包括：
第三确定单元，用于确定网络空闲指示参数，所述网络空闲指示参数用于指示所述车载设备所处网络环境的空闲程度；
第二上报单元，用于在所述网络空闲指示参数满足所述网络空闲测量事件的上报触发条件时，向所述基站上报网络空闲信息；
第四接收单元，用于接收所述基站根据所述网络空闲信息发送的第三系统通信参数，其中所述第三系统通信参数相对于所述第二系统通信参数降低网络 空闲程度；
第二重配单元，用于根据所述第三系统通信参数进行重配。
结合本发明第三方面的第六种实现方式，在本发明第三方面的第七种实现方式中，所述设备还包括：
第五接收单元，用于在所述第三系统通信参数达到第五阈值时，接收所述基站发送的第三周期状态消息发送参数，其中所述第三周期状态消息发送参数相对于所述第二周期状态消息发送参数降低网络空闲程度；
第二发送单元，用于根据所述第三周期状态消息发送参数发送周期状态消息。
本发明第四方面提供了一种基站设备，包括：
第一发送模块，用于向车载设备发送配置消息，以使所述车载设备确定配置信息；所述配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
第一接收模块，用于接收网络拥塞信息，所述网络拥塞信息指示所述车载设备确定的网络拥塞参数满足了所述网络拥塞测量事件的上报触发条件，其中，所述网络拥塞参数用于指示所述车载设备所处网络环境的拥塞程度；
第二发送模块，用于根据所述网络拥塞信息向所述车载设备发送第二周期状态消息发送参数，以使所述车载设备根据所述第二周期状态消息发送参数发送周期状态消息；其中所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度。
结合本发明的第四方面，在本发明第四方面的第一种实现方式中，所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度包括以下之一或者组合：
所述第二周期状态消息发送参数包括的周期状态消息发送功率小于所述第一周期状态消息发送参数包括的周期状态消息发送功率；
所述第二周期状态消息发送参数包括的周期状态消息发送周期大于所述第一周期状态消息发送参数包括的周期状态消息发送周期；
所述第二周期状态消息发送参数包括的周期状态消息发送频率小于所述第一周期状态消息发送参数包括的周期状态消息发送频率；
所述第二周期状态消息发送参数包括的周期状态消息传输速率小于所述第一周期状态消息发送参数包括的周期状态消息传输速率；
所述第二周期状态消息发送参数包括的周期状态消息长度小于所述第一周期状态消息发送参数包括的周期状态消息长度。
结合本发明的第四方面，在本发明第四方面的第二种实现方式中，
所述第一发送模块具有用于通过系统广播向所述车载设备发送配置消息；或，
所述第一发送模块具体用于通过无线资源控制专用信令向所述车载设备发送配置消息。
结合本发明的第四方面、或第四方面的第一种实现方式、或第四方面的第二种实现方式，在本发明第四方面的第三种实现方式中，所述配置信息还包括第一系统通信参数，所述第一系统通信参数包括系统通信带宽和/或子帧配置数量，所述设备还包括：
第三发送模块，用于在所述第二周期状态消息的发送参数达到第四阈值时，向所述车载设备发送第二系统通信参数，以使所述车载设备根据所述第二系统通信参数进行重配；其中所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程度。
结合本发明第四方面的第三种实现方式，在本发明第四方面的第四种实现方式中，所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程度包括以下之一或者组合：
所述第二系统通信参数指示的系统通信带宽大于所述第一系统通信参数指示的系统通信带宽；
所述第二系统通信参数指示的子帧配置数量大于所述第一系统通信参数指示的子帧配置数量。
结合本发明第四方面的第三种实现方式，在本发明第四方面的第五种实现方式中，所述第二周期状态消息的发送参数达到第四阈值包括如下五种情况中至少一种：所述第二周期状态消息的发送功率减小到第一下限值、所述第二周期状态消息的发送周期增大到第一上限值、所述第二周期状态消息的发送频率减小到第二下限值、所述第二周期状态消息的传输速率减小到第三下限值、所 述第二周期状态消息的消息大小减小到第四下限值。
结合本发明第四方面的第三种实现方式，在本发明第四方面的第六种实现方式中，所述配置信息还包括网络空闲测量事件的上报触发条件，所述设备还包括：
第二接收模块，用于接收网络空闲信息，所述网络空闲信息指示所述车载设备确定的网络空闲参数满足了所述网络空闲测量事件的上报触发条件，其中，所述网络空闲参数用于指示所述车载设备所处网络环境的空闲程度；
第四发送模块，用于根据所述网络空闲信息向所述车载设备发送第三系统通信参数，以使所述车载设备根据所述第三系统通信参数进行重配；其中所述第三系统通信参数相对于所述第二系统通信参数降低网络空闲程度。
结合本发明第四方面的第六种实现方式，在本发明第四方面的第七种实现方式中，所述设备还包括：
第五发送模块，用于在所述第三系统通信参数达到第五阈值时，向所述车载设备发送第三周期状态消息发送参数，以使所述车载设备根据所述第三周期状态消息发送参数发送周期状态消息；其中所述第三周期状态消息发送参数相对于所述第二周期状态消息发送参数降低网络空闲程度。
本发明第五方面提供了一种车载设备，包括：接收器、发射器、处理器以及存储器；所述处理器用于执行如下操作：
确定配置信息，所述配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
确定网络拥塞指示参数，所述网络拥塞指示参数用于指示所述车载设备所处网络环境的拥塞程度；
在所述网络拥塞指示参数满足所述网络拥塞测量事件的上报触发条件时，向所述基站上报网络拥塞信息；
接收所述基站根据所述网络拥塞信息发送的第二周期状态消息发送参数，其中所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度；
根据所述第二周期状态消息发送参数发送周期状态消息。
结合本发明的第五方面，在本发明第五方面的第一种实现方式中，所述配 置信息还包括第一系统通信参数，所述第一系统通信参数包括系统通信带宽和/或子帧配置数量，所述处理器还用于执行如下操作：
在所述第二周期状态消息的发送参数达到第四阈值时，接收所述基站发送的第二系统通信参数，其中所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程度；
根据所述第二系统通信参数进行重配。
结合本发明第五方面的第一种实现方式，在本发明第五方面的第二种实现方式中，所述配置信息还包括网络空闲测量事件的上报触发条件，所述处理器还用于执行如下操作：
确定网络空闲指示参数，所述网络空闲指示参数用于指示所述车载设备所处网络环境的空闲程度；
在所述网络空闲指示参数满足所述网络空闲测量事件的上报触发条件时，向所述基站上报网络空闲信息；
接收所述基站根据所述网络空闲信息发送的第三系统通信参数，其中所述第三系统通信参数相对于所述第二系统通信参数降低网络空闲程度；
根据所述第三系统通信参数进行重配。
结合本发明第五方面的第二种实现方式，在本发明第五方面的第三种实现方式中，所述处理器还用于执行如下操作：
在所述第三系统通信参数达到第五阈值时，接收所述基站发送的第三周期状态消息发送参数，其中所述第三周期状态消息发送参数相对于所述第二周期状态消息发送参数降低网络空闲程度；
根据所述第三周期状态消息发送参数发送周期状态消息。
本发明第六方面提供了一种基站设备，包括：接收器、发射器、处理器以及存储器；所述处理器用于执行如下操作：
向车载设备发送配置消息，以使所述车载设备确定配置信息；所述配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
接收网络拥塞信息，所述网络拥塞信息指示所述车载设备确定的网络拥塞参数满足了所述网络拥塞测量事件的上报触发条件，其中，所述网络拥塞参数用于指示所述车载设备所处网络环境的拥塞程度；
根据所述网络拥塞信息向所述车载设备发送第二周期状态消息发送参数，以使所述车载设备根据所述第二周期状态消息发送参数发送周期状态消息；其中所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度。
结合本发明的第六方面，在本发明第六方面的第一种实现方式中，所述配置信息还包括第一系统通信参数，所述第一系统通信参数包括系统通信带宽和/或子帧配置数量，所述处理器还用于执行如下操作：
在所述第二周期状态消息的发送参数达到第四阈值时，向所述车载设备发送第二系统通信参数，以使所述车载设备根据所述第二系统通信参数进行重配；其中所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程度。
结合本发明第六方面的第一种实现方式，在本发明第六方面的第二种实现方式中，所述配置信息还包括网络空闲测量事件的上报触发条件，所述处理器还用于执行如下操作：
接收网络空闲信息，所述网络空闲信息指示所述车载设备确定的网络空闲参数满足了所述网络空闲测量事件的上报触发条件，其中，所述网络空闲参数用于指示所述车载设备所处网络环境的空闲程度；
根据所述网络空闲信息向所述车载设备发送第三系统通信参数，以使所述车载设备根据所述第三系统通信参数进行重配；其中所述第三系统通信参数相对于所述第二系统通信参数降低网络空闲程度。
结合本发明第六方面的第二种实现方式，在本发明第六方面的第三种实现方式中，所述处理器还用于执行如下操作：
在所述第三系统通信参数达到第五阈值时，向所述车载设备发送第三周期状态消息发送参数，以使所述车载设备根据所述第三周期状态消息发送参数发送周期状态消息；其中所述第三周期状态消息发送参数相对于所述第二周期状态消息发送参数降低网络空闲程度。
从以上技术方案可以看出，本发明实施例具有以下优点：当所述网络拥塞指示参数满足所述网络拥塞测量事件的上报触发条件时，所述车载设备向所述基站上报网络拥塞信息；所述车载设备接收所述基站根据所述网络拥塞信息发 送的第二周期状态消息发送参数，并根据所述第二周期状态消息发送参数发送周期状态消息。从而对网络拥塞进行全局拥塞控制，有效的缓解车联网中的网络拥塞问题，提高了拥塞控制系统的稳定性。
附图说明
图1为本发明所提供的通信方法的一个实施例流程示意图；
图2为本发明所提供的通信方法的另一实施例流程示意图；
图3为本发明所提供的通信方法的另一实施例流程示意图；
图4为本发明所提供的通信方法的另一实施例流程示意图；
图5为本发明所提供的通信方法的另一实施例流程示意图；
图6为本发明所提供的通信方法的另一实施例流程示意图；
图7为本发明所提供的通信方法的另一实施例流程示意图；
图8为本发明所提供的通信方法的另一实施例流程示意图；
图9为本发明所提供的通信方法的另一实施例流程示意图；
图10为本发明所提供的通信方法的另一实施例流程示意图；
图11为本发明所提供的通信方法的另一实施例流程示意图；
图12为本发明所提供的车载设备的一个实施例结构示意图；
图13为本发明所提供的车载设备的另一实施例结构示意图；
图14为本发明所提供的车载设备的另一实施例结构示意图；
图15为本发明所提供的车载设备的另一实施例结构示意图；
图16为本发明所提供的车载设备的另一实施例结构示意图；
图17为本发明所提供的基站设备的一个实施例结构示意图；
图18为本发明所提供的基站设备的另一实施例结构示意图；
图19为本发明所提供的基站设备的另一实施例结构示意图；
图20为本发明所提供的基站设备的另一实施例结构示意图；
图21为本发明所提供的基站设备的另一实施例结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，下面所描述的实施例仅仅是本发明一部分实施例，而非全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创 造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1，本发明所提供的通信方法的一个实施例包括：
101、车载设备确定配置信息，该配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
需要说明的是，该配置信息包括第一PSM(Periodic Status Message，周期状态消息)发送参数和网络拥塞测量事件的上报触发条件；为了保证车辆安全行驶，车车之间需要通过VDC(Vehicle Direct Communication，车车直连通信)接口周期性的交互状态信息，该交互状态信息在美国叫做BSM(Basic Safety Message，基本安全讯息)，在欧洲叫做CAM，这里统称为PSM。该PSM可以理解为车辆的“心跳包”，该PSM发送参数中包含车的位置、速度、状态等信息，通过单跳的方式广播给周围车辆，频率一般在100ms/次；通过分析接收到的周围车辆PSM发送参数，可判断并预警即将发生的危险，减少灾害的发生。其中，该车载设备确定配置信息具体包括以下之一：
该车载设备接收基站通过系统广播发送的配置消息，以确定该配置信息；
该车载设备接收基站通过无线资源控制专用信令发送的配置消息，以确定该配置信息；
该车载设备通过预配置确定该配置信息。
该车载设备中可以通过设置相应的功能模块进行通信，具体的，在该车载设备内装设两个通信模块，一个是传统的LTE(Long Term Evolution，长期演进)通信模块，用于车辆和基站之间通信和交互信息；另一个是VDC通信模块，用于车辆和车辆之间直接通信(消息不由基站中转)；其中，VDC通信模块的工作频带可以是车车直连通信的专用频谱，可以是传统的LTE频谱，也可以是非授权频谱；而且，VDC通信模块的通信技术可以是欧美现在采用的802.11p的通信技术，也可以是基于LTE设计的VDC通信技术。在本发明实施例中，该VDC通信模块根据LTE通信模块接收到的系统广播消息，配置VDC通信模块的第一PSM发送参数以及网络拥塞测量事件的上报触发条件，并与其它车辆进行V2V(vehicle-to-vehicle，车与车)通信。
102、该车载设备确定网络拥塞指示参数；
需要说明的是，该网络拥塞指示参数用于指示该车载设备所处网络环境的 拥塞程度。
103、当该网络拥塞指示参数满足该网络拥塞测量事件的上报触发条件时，该车载设备向该基站上报网络拥塞信息；
需要说明的是，车载设备根据已配置的网络拥塞测量事件的上报触发条件对该网络拥塞指示参数进行监测，若监测结果满足该网络拥塞测量事件的上报触发条件，则向该基站上报网络拥塞信息。
104、该车载设备接收该基站根据该网络拥塞信息发送的第二周期状态消息发送参数；
需要说明的是，该第二周期状态消息发送参数相对于该第一周期状态消息发送参数降低网络拥塞程度；其中，该第二周期状态消息发送参数相对于该第一周期状态消息发送参数降低网络拥塞程度包括以下之一或者组合：
该第二周期状态消息发送参数包括的周期状态消息发送功率小于该第一周期状态消息发送参数包括的周期状态消息发送功率；
该第二周期状态消息发送参数包括的周期状态消息发送周期大于该第一周期状态消息发送参数包括的周期状态消息发送周期；
该第二周期状态消息发送参数包括的周期状态消息发送频率小于该第一周期状态消息发送参数包括的周期状态消息发送频率；
该第二周期状态消息发送参数包括的周期状态消息传输速率小于该第一周期状态消息发送参数包括的周期状态消息传输速率；
该第二周期状态消息发送参数包括的周期状态消息长度小于该第一周期状态消息发送参数包括的周期状态消息长度。
可以理解的是，该第二周期状态消息发送参数可以是该基站通过系统广播发送的对小区内车辆进行集体拥塞控制的第一PSM发送参数的重配信息；或者是通过RRC(Radio Resource Control，无线资源控制)专用信令发送的对小区内指定车辆进行单独拥塞控制的第一PSM发送参数的重配信息。
105、该车载设备根据该第二周期状态消息发送参数发送周期状态消息。
需要说明的是，该车载设备中的VDC通信模块根据该第二PSM发送参数重新配置VDC通信模块的V2V通信参数，并向周围车辆发送PSM。
本发明实施例中，当该网络拥塞指示参数满足该网络拥塞测量事件的上报 触发条件时，该车载设备向该基站上报网络拥塞信息；该车载设备接收该基站根据该网络拥塞信息发送的第二周期状态消息发送参数，并根据该第二周期状态消息发送参数发送周期状态消息。从而对网络拥塞进行全局拥塞控制，有效的缓解车联网中的网络拥塞问题，提高了拥塞控制系统的稳定性。
请参阅图2，本发明所提供的通信方法的另一实施例包括：
201、车载设备确定配置信息，该配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
该步骤201的具体过程可参考图1所示步骤101，基于步骤101所描述的内容，此处需要补充说明的是，该网络拥塞测量事件的上报触发条件的重要参数可以是网络拥塞上报门限Thresh_high和监测时间T。
202、该车载设备确定车车通信资源占用率；
需要说明的是，该车车通信资源占用率用于指示该车载设备所处网络环境的拥塞程度，具体用于指示CBR(Channel Busy Ratio，信道忙闲程度)。
203、当在第一时间段内，该车车通信资源占用率大于或等于第一阈值时，该车载设备向该基站上报网络拥塞信息；
需要说明的是，车载设备根据已配置的网络拥塞测量事件的上报触发条件对车车通信资源占用率进行监测，当在第一时间段内(即监测时间T内)，若测量到的车车通信资源占用率大于或等于第一阈值，则满足该网络拥塞测量事件的上报触发条件，该车载设备启动RRC连接过程，与基站建立RRC连接，并向该基站上报网络拥塞信息；该网络拥塞信息包括CBR和/或当前PSM发送参数，其中CBR可以是全部PRB(Physical Resource Block，物理资源块)的占用率，PSM发送参数可以包括PSM发送功率，PSM发送周期，PSM发送频率，PSM传输速率，PSM包大小等；可以理解的是，当在第一时间段内(即监测时间T内)，若测量到的车车通信资源占用率小于第一阈值，则不满足该网络拥塞测量事件的上报触发条件，该车载设备与该基站断开RRC连接，停止向该基站上报网络拥塞信息。在本实施例中，具体可通过如下方式实现：
例如，该网络拥塞测量事件的上报触发条件可以是在监测时间T内测量的车车通信资源占用率大于或等于网络拥塞上报门限Thresh_high，即触发网络拥塞测量事件上报。为避免乒乓效应，可以考虑定义该网络拥塞测量事件的进入 和离开条件，如，
进入条件：
Ms–Hys>Thresh_high
离开条件：
Ms+Hys<Thresh_high
其中Hys是与该网络拥塞测量事件相关的余量参数，Ms是车载设备对车车通信资源占用率的测量值。
204、该车载设备接收该基站根据该网络拥塞信息发送的第二周期状态消息发送参数；
205、该车载设备根据该第二周期状态消息发送参数发送周期状态消息。
需要说明的是，步骤204～205的具体过程可对应参考图1所示步骤104～105，此处不再赘述。
本发明实施例中，该车载设备确定车车通信资源占用率，当在第一时间段内，该车车通信资源占用率大于或等于第一阈值时，该车载设备向该基站上报网络拥塞信息；该车载设备接收该基站根据该网络拥塞信息发送的第二周期状态消息发送参数，并根据该第二周期状态消息发送参数发送周期状态消息。从而对网络拥塞进行全局拥塞控制，有效的缓解车联网中的网络拥塞问题，提高了拥塞控制系统的稳定性。
请参阅图3，本发明所提供的通信方法的另一实施例包括：
301、车载设备确定配置信息，该配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
302、该车载设备确定车车通信数据包的接收成功率；
需要说明的是，该车车通信数据包的接收成功率用于指示该车载设备所处网络环境的拥塞程度。
303、当在第一时间段内，该车车通信数据包的接收成功率小于或等于第二阈值时，该车载设备向该基站上报网络拥塞信息；
该步骤303与图2所示实施例中步骤203的不同之处在于，步骤203中网络拥塞测量事件的上报触发条件为车车通信资源占用率大于或等于第一阈值；步骤303中网络拥塞测量事件的上报触发条件为车车通信数据包的接收成功 率小于或等于第二阈值；其具体实现方式可一并参考步骤203，此处不再赘述。
304、该车载设备接收该基站根据该网络拥塞信息发送的第二周期状态消息发送参数；
305、该车载设备根据该第二周期状态消息发送参数发送周期状态消息。
需要说明的是，步骤301、304、305的具体过程可分别对应参考图2所示实施例中的步骤201、204、205，此处不再赘述。
本发明实施例中，该车载设备确定车车通信数据包的接收成功率，当在第一时间段内，该车车通信数据包的接收成功率小于或等于第二阈值时，该车载设备向该基站上报网络拥塞信息；该车载设备接收该基站根据该网络拥塞信息发送的第二周期状态消息发送参数，并根据该第二周期状态消息发送参数发送周期状态消息。从而对网络拥塞进行全局拥塞控制，有效的缓解车联网中的网络拥塞问题，提高了拥塞控制系统的稳定性。
请参阅图4，本发明所提供的通信方法的另一实施例包括：
401、车载设备确定配置信息，该配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
402、该车载设备确定车车通信数据包的发送等待时长；
需要说明的是，该车载设备确定车车通信数据包的发送等待时长用于指示该车载设备所处网络环境的拥塞程度。
403、当在第一时间段内，该车车通信数据包的发送等待时长大于或等于第三阈值时，该车载设备向该基站上报网络拥塞信息；
该步骤403与图2所示实施例中步骤203的不同之处在于，步骤203中网络拥塞测量事件的上报触发条件为车车通信资源占用率大于或等于第一阈值；步骤403中网络拥塞测量事件的上报触发条件为车车通信数据包的发送等待时长大于或等于第三阈值；其中，该发送等待时长用于表征该车载设备是否已经竞争到通信资源，或是否已经接收到基站的调度消息；其具体实现方式可一并参考步骤203，此处不再赘述。
404、该车载设备接收该基站根据该网络拥塞信息发送的第二周期状态消息发送参数；
405、该车载设备根据该第二周期状态消息发送参数发送周期状态消息。
需要说明的是，步骤401、404、405的具体过程可分别对应参考图2所示实施例中的步骤201、204、205，此处不再赘述。
本发明实施例中，该车载设备确定车车通信数据包的发送等待时长，当在第一时间段内，该车车通信数据包的发送等待时长大于或等于第三阈值时，该车载设备向该基站上报网络拥塞信息；该车载设备接收该基站根据该网络拥塞信息发送的第二周期状态消息发送参数，并根据该第二周期状态消息发送参数发送周期状态消息。从而对网络拥塞进行全局拥塞控制，有效的缓解车联网中的网络拥塞问题，提高了拥塞控制系统的稳定性。
为了更全面的解决网络拥塞问题，结合上述实施例中该描述的通信方法，本发明实施例中将基于网络拥塞的一级拥塞控制实现对网络拥塞问题进行二级拥塞控制，上述实施例均可与本发明实施例结合使用，为避免赘述，本发明实施例中仅结合上述实施例图2，对网络拥塞问题的二级拥塞控制进行相关说明；请参阅图5，本发明所提供的通信方法的另一实施例包括：
501、车载设备确定配置信息，该配置信息包括第一周期状态消息发送参数、第一系统通信参数以及网络拥塞测量事件的上报触发条件；
需要说明的是，该第一系统通信参数包括系统通信带宽和/或子帧配置数量。
502、该车载设备确定车车通信资源占用率；
503、当在第一时间段内，该车车通信资源占用率大于或等于第一阈值时，该车载设备向该基站上报网络拥塞信息；
504、该车载设备接收该基站根据该网络拥塞信息发送的第二周期状态消息发送参数；
505、该车载设备根据该第二周期状态消息发送参数发送周期状态消息；
需要说明的是，步骤501～505的具体过程可分别对应参考图2所示实施例中的步骤201～205，此处不再赘述。
506、当该第二周期状态消息发送参数达到第四阈值时，该车载设备接收该基站发送的第二系统通信参数；
需要说明的是，在对该第二PSM发送参数进行调节至该第二PSM发送参数达到第四阈值时，该车载设备接收该基站发送的第二系统通信参数；该第二 周期状态消息发送参数达到第四阈值包括如下五种情况中至少一种：该第二周期状态消息的发送功率减小到第一下限值、该第二周期状态消息的发送周期增大到第一上限值、该第二周期状态消息的发送频率减小到第二下限值、该第二周期状态消息的传输速率减小到第三下限值、该第二周期状态消息的消息大小减小到第四下限值。
其中，该第二系统通信参数相对于该第一系统通信参数降低网络拥塞程度；其具体包括以下之一或者组合：
该第二系统通信参数指示的系统通信带宽大于该第一系统通信参数指示的系统通信带宽；
该第二系统通信参数指示的子帧配置数量大于该第一系统通信参数指示的子帧配置数量。
该第二系统通信参数可以是该基站通过系统广播发送的对小区内车辆进行集体拥塞控制的第一系统通信参数的重配信息；或者是通过RRC专用信令发送的对小区内指定车辆进行单独拥塞控制的第一系统通信参数的重配信息。
507、该车载设备根据该第二系统通信参数进行重配。
需要说明的是，该车载设备中的VDC通信模块则根据该第二系统通信参数重新配置VDC通信模块的V2V通信参数。
本发明实施例中，当该第二周期状态消息的发送参数达到第四阈值时，该车载设备接收该基站发送的第二系统通信参数，并根据该第二系统通信参数进行重配。因此，通过二级拥塞控制能够有效的缓解车联网中的网络拥塞问题，提高了拥塞控制系统的稳定性。
为了合理的利用网络资源，结合上述实施例中该描述的通信方法，本发明实施例中将对网络拥塞问题以及网络空闲问题的结合控制进行相关说明；请参阅图6，本发明所提供的通信方法的另一实施例包括：
601、车载设备确定配置信息，该配置信息包括第一周期状态消息发送参数、第一系统通信参数、网络拥塞测量事件的上报触发条件以及网络空闲测量事件的上报触发条件；
该步骤601的具体过程可参考图2所示步骤201，基于步骤201所描述的内容，此处需要补充说明的是，该网络空闲测量事件的上报触发条件的重要参 数可以是网络空闲上报门限Thresh_low和监测时间T。
602、该车载设备确定网络拥塞指示参数或网络空闲指示参数；
需要说明的是，该网络拥塞指示参数用于指示该车载设备所处网络环境的拥塞程度；该网络空闲指示参数用于指示该车载设备所处网络环境的空闲程度。
603、当该网络拥塞指示参数满足该网络拥塞测量事件的上报触发条件时，该车载设备向该基站上报网络拥塞信息；
需要说明的是，该网络拥塞指示参数满足该网络拥塞测量事件的上报触发条件具体包括以下之一：
在第一时间段内，车车通信资源占用率大于或等于第一阈值；
在第一时间段内，车车通信数据包的接收成功率小于或等于第二阈值；
在第一时间段内，车车通信数据包的发送等待时长大于或等于第三阈值。
以上具体过程可分别对应参见步骤203、303、403，此处不再赘述。
604、该车载设备接收该基站根据该网络拥塞信息发送的第二周期状态消息发送参数；
605、该车载设备根据该第二周期状态消息发送参数发送周期状态消息；
606、当该第二周期状态消息的发送参数达到第四阈值时，该车载设备接收该基站发送的第二系统通信参数；
607、该车载设备根据该第二系统通信参数进行重配；
需要说明的是，步骤604～607的具体过程可分别对应参考图5所示实施例中的步骤504～507，此处不再赘述。
608、当该网络空闲指示参数满足该网络空闲测量事件的上报触发条件时，该车载设备向该基站上报网络空闲信息；
需要说明的是，该网络空闲指示参数满足该网络空闲测量事件的上报触发条件可包括如下三种实现方式中任意一种：在第一时间段内，车车通信资源占用率小于第六阈值；或者，在第一时间段内，车车通信数据包的接收成功率大于第七阈值；或者，在第一时间段内，车车通信数据包的发送等待时长小于第八阈值。在本实施例中，列举其中一种具体实现方式：
例如，该网络空闲测量事件的上报触发条件可以是在监测时间T内测量的 车车通信资源占用率小于网络空闲上报门限Thresh_low，即触发网络空闲测量事件上报。为避免乒乓效应，可以考虑定义该网络空闲测量事件的进入和离开条件，如，
进入条件：
Ms+Hys<Thresh_low
离开条件：
Ms-Hys>Thresh_low
其中Hys是与该网络空闲测量事件相关的余量参数，Ms是车载设备对车车通信资源占用率的测量值。
进一步的，在满足该网络空闲测量事件的上报触发条件后，车载设备与该基站建立RRC连接，并向该基站上报网络空闲信息；该网络空闲信息包括CBR和/或当前PSM发送参数；其中CBR可以是全部PRB的占用率，PSM发送参数可以包括PSM发送功率，PSM发送周期，PSM发送频率，PSM传输速率，PSM包大小等。
609、该车载设备接收该基站根据该网络空闲信息发送的第三系统通信参数；
需要说明的是，该第三系统通信参数相对于该第二系统通信参数降低网络空闲程度，其具体包括以下之一或者组合：
该第三系统通信参数指示的系统通信带宽小于该第二系统通信参数指示的系统通信带宽；
该第三系统通信参数指示的子帧配置数量小于该第二系统通信参数指示的子帧配置数量。
610、该车载设备根据该第三系统通信参数进行重配。
需要说明的是，该车载设备中的VDC通信模块则根据该第三系统通信参数重新配置VDC通信模块的V2V通信参数。
本发明实施例中，当该网络空闲指示参数满足该网络空闲测量事件的上报触发条件时，该车载设备向该基站上报网络空闲信息；该车载设备接收该基站根据该网络空闲信息发送的第三系统通信参数，并根据该第三系统通信参数进行重配。从而对网络空闲进行空闲控制，有效的缓解车联网中的网络空闲问题， 以便合理利用网络资源，且提高了空闲控制系统的稳定性。
结合上述实施例中所描述的通信方法，本发明实施例中将基于网络空闲的一级空闲控制实现对网络空闲问题进行二级空闲控制，上述实施例均可与本发明实施例结合使用，为避免赘述，本发明实施例中仅结合上述实施例图6，对网络空闲问题的二级空闲控制进行相关说明；请参阅图7，本发明所提供的通信方法的另一实施例包括：
701、车载设备确定配置信息，该配置信息包括第一周期状态消息发送参数、第一系统通信参数、网络拥塞测量事件的上报触发条件以及网络空闲测量事件的上报触发条件；
702、该车载设备确定网络拥塞指示参数或网络空闲指示参数；
703、当该网络拥塞指示参数满足该网络拥塞测量事件的上报触发条件时，该车载设备向该基站上报网络拥塞信息；
704、该车载设备接收该基站根据该网络拥塞信息发送的第二周期状态消息发送参数；
705、该车载设备根据该第二周期状态消息发送参数发送周期状态消息；
706、当该第二周期状态消息的发送参数达到第四阈值时，该车载设备接收该基站发送的第二系统通信参数；
707、该车载设备根据该第二系统通信参数进行重配；
708、当该网络空闲指示参数满足该网络空闲测量事件的上报触发条件时，该车载设备向该基站上报网络空闲信息；
709、该车载设备接收该基站根据该网络空闲信息发送的第三系统通信参数；
710、该车载设备根据该第三系统通信参数进行重配；
需要说明的是，步骤701～710的具体过程可分别对应参考图6所示实施例中的步骤601～610，此处不再赘述。
711、当该第三系统通信参数达到第五阈值时，该车载设备接收该基站发送的第三周期状态消息发送参数；
需要说明的是，该第三系统通信参数达到第五阈值包括如下两种情况中至少一种：该第三系统通信参数指示的系统通信带宽减小到第五下限值、该第三 系统通信参数指示的子帧配置数量减小到第六下限值。
其中，该第三周期状态消息发送参数相对于该第二周期状态消息发送参数降低网络空闲程度；其具体包括以下之一或者组合：
该第三周期状态消息发送参数包括的周期状态消息发送功率大于该第二周期状态消息发送参数包括的周期状态消息发送功率；
该第三周期状态消息发送参数包括的周期状态消息发送周期小于该第二周期状态消息发送参数包括的周期状态消息发送周期；
该第三周期状态消息发送参数包括的周期状态消息发送频率大于该第二周期状态消息发送参数包括的周期状态消息发送频率；
该第三周期状态消息发送参数包括的周期状态消息传输速率大于该第二周期状态消息发送参数包括的周期状态消息传输速率；
该第三周期状态消息发送参数包括的周期状态消息长度大于该第二周期状态消息发送参数包括的周期状态消息长度。
712、该车载设备根据该第三周期状态消息发送参数发送周期状态消息。
需要说明的是，该车载设备中的VDC通信模块则根据该第三PSM发送参数重新配置VDC通信模块的V2V通信参数，并向周围车辆发送PSM。
本发明实施例中，当该第三系统通信参数达到第五阈值时，该车载设备接收该基站发送的第三周期状态消息发送参数；该车载设备根据该第三周期状态消息发送参数发送周期状态消息。因此，通过二级空闲控制能够有效的缓解车联网中的网络空闲问题，以便合理利用网络资源，且提高了空闲控制系统的稳定性。
可选的，上述实施例中的网络拥塞测量事件的上报触发条件以及网络空闲测量事件的上报触发条件均可配置为基于周期性触发的测量事件；具体的，基于周期性触发的测量事件的重要参数是测量周期T_C和监测时间T，车载设备根据测量周期T_C，周期性的向基站上报当前网络拥塞指示参数或者当前网络空闲指示参数，基站针对当前网络拥塞指示参数或者当前网络空闲指示参数对网络环境进行控制，具体过程可参考上述内容，此处不作具体描述。
以上对该通信方法的车载设备侧进行了详细描述，下面将通过基站侧对该通信方法进行说明，请参阅图8，本发明所提供的通信方法的另一实施例包括：
801、基站向车载设备发送配置消息，以使该车载设备确定配置信息；该配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
需要说明的是，该配置信息包括第一PSM发送参数和网络拥塞测量事件的上报触发条件；为了保证车辆安全行驶，车车之间需要通过VDC接口周期性的交互状态信息，该交互状态信息在美国叫做BSM，在欧洲叫做CAM，这里统称为PSM。该PSM可以理解为车辆的“心跳包”，该PSM发送参数中包含车的位置、速度、状态等信息，通过单跳的方式广播给周围车辆，频率一般在100ms/次；通过分析接收到的周围车辆PSM发送参数，可判断并预警即将发生的危险，减少灾害的发生。其中，该基站向车载设备发送配置消息具体包括以下之一：
该基站通过系统广播向该车载设备发送配置消息；
该基站通过无线资源控制专用信令向该车载设备发送配置消息。
该车载设备中可以通过设置相应的功能模块进行通信，具体的，在该车载设备内装设两个通信模块，一个是传统的LTE通信模块，用于车辆和基站之间通信和交互信息；另一个是VDC通信模块，用于车辆和车辆之间直接通信(消息不由基站中转)；其中，VDC通信模块的工作频带可以是车车直连通信的专用频谱，可以是传统的LTE频谱，也可以是非授权频谱；而且，VDC通信模块的通信技术可以是欧美现在采用的802.11p的通信技术，也可以是基于LTE设计的VDC通信技术。在本发明实施例中，该VDC通信模块根据LTE通信模块接收到的系统广播消息，配置VDC通信模块的V2V通信参数以及网络拥塞测量事件，并与其它车辆进行V2V通信。
802、该基站接收网络拥塞信息，该网络拥塞信息指示该车载设备确定的网络拥塞参数满足了该网络拥塞测量事件的上报触发条件；
需要说明的是，该网络拥塞指示参数用于指示该车载设备所处网络环境的拥塞程度；其中，该网络拥塞指示参数满足该网络拥塞测量事件的上报触发条件具体包括以下之一：
在第一时间段内，车车通信资源占用率大于或等于第一阈值；
在第一时间段内，车车通信数据包的接收成功率小于或等于第二阈值；
在第一时间段内，车车通信数据包的发送等待时长大于或等于第三阈值。
本发明实施例中，列举其中一种具体实现方式：
该网络拥塞测量事件的上报触发条件的重要参数可以是网络拥塞上报门限Thresh_high和监测时间T。例如，该网络拥塞测量事件的上报触发条件可以是在监测时间T内测量的车车通信资源占用率大于或等于网络拥塞上报门限Thresh_high，即触发网络拥塞测量事件上报。为避免乒乓效应，可以考虑定义该网络拥塞测量事件的进入和离开条件，如，
进入条件：
Ms–Hys>Thresh_high
离开条件：
Ms+Hys<Thresh_high
其中Hys是与该网络拥塞测量事件相关的余量参数，Ms是车载设备对车车通信资源占用率的测量值。
进一步的，在满足该网络拥塞测量事件的上报触发条件后，基站与该车载设备建立RRC连接，并接收该车载设备发送的网络拥塞信息；该网络拥塞信息包括CBR和/或当前PSM发送参数；其中CBR可以是全部PRB的占用率，PSM发送参数可以包括PSM发送功率，PSM发送周期，PSM发送频率，PSM传输速率，PSM包大小等。
803、该基站根据该网络拥塞信息向该车载设备发送第二周期状态消息发送参数，以使该车载设备根据该第二周期状态消息发送参数发送周期状态消息。
需要说明的是，该第二周期状态消息发送参数相对于该第一周期状态消息发送参数降低网络拥塞程度；其具体包括以下之一或者组合：
该第二周期状态消息发送参数包括的周期状态消息发送功率小于该第一周期状态消息发送参数包括的周期状态消息发送功率；
该第二周期状态消息发送参数包括的周期状态消息发送周期大于该第一周期状态消息发送参数包括的周期状态消息发送周期；
该第二周期状态消息发送参数包括的周期状态消息发送频率小于该第一周期状态消息发送参数包括的周期状态消息发送频率；
该第二周期状态消息发送参数包括的周期状态消息传输速率小于该第一周期状态消息发送参数包括的周期状态消息传输速率；
该第二周期状态消息发送参数包括的周期状态消息长度小于该第一周期状态消息发送参数包括的周期状态消息长度。
可以理解的是，该第二周期状态消息发送参数可以是该基站通过系统广播发送的对小区内车辆进行集体拥塞控制的第一PSM发送参数的重配信息；或者是通过RRC专用信令发送的对小区内指定车辆进行单独拥塞控制的第一PSM发送参数的重配信息。
该车载设备中的VDC通信模块则根据该第二PSM发送参数重新配置VDC通信模块的V2V通信参数，并向周围车辆发送PSM。
本发明实施例中，基站向车载设备发送配置消息，以使该车载设备确定配置信息；该基站接收网络拥塞信息，并根据该网络拥塞信息向该车载设备发送第二周期状态消息发送参数，以使该车载设备根据该第二周期状态消息发送参数发送周期状态消息。从而对网络拥塞进行全局拥塞控制，有效的缓解车联网中的网络拥塞问题，提高了拥塞控制系统的稳定性。
为了更全面的解决网络拥塞问题，结合上述实施例中该描述的通信方法，本发明实施例中将基于网络拥塞的一级拥塞控制实现对网络拥塞问题进行二级拥塞控制，以下将对网络拥塞问题的二级拥塞控制进行相关说明；请参阅图9，本发明所提供的通信方法的另一实施例包括：
901、基站向车载设备发送配置消息，以使该车载设备确定配置信息；该配置信息包括第一周期状态消息发送参数、第一系统通信参数以及网络拥塞测量事件的上报触发条件；
需要说明的是，该步骤901的具体过程可对应参考图8所示步骤801，基于步骤801所描述的内容，此处需要补充说明的是，该第一系统通信参数包括系统通信带宽和/或子帧配置数量。
902、该基站接收网络拥塞信息，该网络拥塞信息指示该车载设备确定的网络拥塞参数满足了该网络拥塞测量事件的上报触发条件；
903、该基站根据该网络拥塞信息向该车载设备发送第二周期状态消息发送参数，以使该车载设备根据该第二周期状态消息发送参数发送周期状态消 息；
需要说明的是，步骤902、903的具体过程可分别对应参考图8所示实施例中的步骤802、803，此处不再赘述。
904、当该第二周期状态消息发送参数达到第四阈值时，该基站向该车载设备发送第二系统通信参数，以使该车载设备根据该第二系统通信参数进行重配。
需要说明的是，在对该第二PSM发送参数进行调节至该第二PSM发送参数达到第四阈值时，该基站向该车载设备发送第二系统通信参数，以使该车载设备中的VDC通信模块则根据该第二系统通信参数重新配置VDC通信模块的V2V通信参数。其中，该第二周期状态消息发送参数达到第四阈值包括如下五种情况中至少一种：该第二周期状态消息的发送功率减小到第一下限值、该第二周期状态消息的发送周期增大到第一上限值、该第二周期状态消息的发送频率减小到第二下限值、该第二周期状态消息的传输速率减小到第三下限值、该第二周期状态消息的消息大小减小到第四下限值。
其中，该第二系统通信参数相对于该第一系统通信参数降低网络拥塞程度；其具体包括以下之一或者组合：
该第二系统通信参数指示的系统通信带宽大于该第一系统通信参数指示的系统通信带宽；
该第二系统通信参数指示的子帧配置数量大于该第一系统通信参数指示的子帧配置数量。
该第二系统通信参数可以是该基站通过系统广播发送的对小区内车辆进行集体拥塞控制的第一系统通信参数的重配信息；或者是通过RRC专用信令发送的对小区内指定车辆进行单独拥塞控制的第一系统通信参数的重配信息。
本发明实施例中，当该第二周期状态消息发送参数达到第四阈值时，该基站向该车载设备发送第二系统通信参数，以使该车载设备根据该第二系统通信参数进行重配。因此，通过二级拥塞控制能够有效的缓解车联网中的网络拥塞问题，提高了拥塞控制系统的稳定性。
为了合理的利用网络资源，结合上述实施例中该描述的通信方法，本发明实施例中将对网络拥塞问题以及网络空闲问题的结合控制进行相关说明；请参 阅图10，本发明所提供的通信方法的另一实施例包括：
1001、基站向车载设备发送配置消息，以使该车载设备确定配置信息；该配置信息包括第一周期状态消息发送参数、第一系统通信参数、网络拥塞测量事件的上报触发条件以及网络空闲测量事件的上报触发条件；
需要说明的是，该步骤1001的具体过程可对应参考图9所示步骤901，基于步骤901所描述的内容，此处需要补充说明的是，该网络空闲测量事件的上报触发条件的重要参数可以是网络空闲上报门限Thresh_low和监测时间T。
1002、该基站接收网络拥塞信息，该网络拥塞信息指示该车载设备确定的网络拥塞参数满足了该网络拥塞测量事件的上报触发条件；
1003、该基站根据该网络拥塞信息向该车载设备发送第二周期状态消息发送参数，以使该车载设备根据该第二周期状态消息发送参数发送周期状态消息；
1004、当该第二周期状态消息发送参数达到第四阈值时，该基站向该车载设备发送第二系统通信参数，以使该车载设备根据该第二系统通信参数进行重配；
需要说明的是，步骤1002～1004的具体过程可分别对应参考图9所示实施例中的步骤902～904，此处不再赘述。
1005、该基站接收网络空闲信息，该网络空闲信息指示该车载设备确定的网络空闲参数满足了该网络空闲测量事件的上报触发条件；
需要说明的是，该网络空闲指示参数用于指示该车载设备所处网络环境的空闲程度；其中，该网络空闲指示参数满足该网络空闲测量事件的上报触发条件具体包括以下之一：
在第一时间段内，车车通信资源占用率小于第六阈值；
在第一时间段内，车车通信数据包的接收成功率大于第七阈值；
在第一时间段内，车车通信数据包的发送等待时长小于第八阈值。
在本实施例中，列举其中一种具体实现方式：
例如，该网络空闲测量事件的上报触发条件可以是在监测时间T内测量的车车通信资源占用率小于网络空闲上报门限Thresh_low，即触发网络空闲测量事件上报。为避免乒乓效应，可以考虑定义该网络空闲测量事件的进入和离开 条件，如，
进入条件：
Ms+Hys<Thresh_low
离开条件：
Ms-Hys>Thresh_low
其中Hys是与该网络空闲测量事件相关的余量参数，Ms是车载设备对车车通信资源占用率的测量值。
进一步的，在满足该网络空闲测量事件的上报触发条件后，基站与该车载设备建立RRC连接，并接收该车载设备发送的网络空闲信息；该网络空闲信息包括CBR和/或当前PSM发送参数；其中CBR可以是全部PRB的占用率，PSM发送参数可以包括PSM发送功率，PSM发送周期，PSM发送频率，PSM传输速率，PSM包大小等。
1006、该基站根据该网络空闲信息向该车载设备发送第三系统通信参数，以使该车载设备根据该第三系统通信参数进行重配。
需要说明的是，该基站根据该网络空闲信息向该车载设备发送第三系统通信参数，该车载设备中的VDC通信模块则根据该第三系统通信参数重新配置VDC通信模块的V2V通信参数；其中，该第三系统通信参数相对于该第二系统通信参数降低网络空闲程度；其具体包括以下之一或者组合：
该第三系统通信参数指示的系统通信带宽小于该第二系统通信参数指示的系统通信带宽；
该第三系统通信参数指示的子帧配置数量小于该第二系统通信参数指示的子帧配置数量。
本发明实施例中，该基站接收网络空闲信息，并根据该网络空闲信息向该车载设备发送第三系统通信参数，以使该车载设备根据该第三系统通信参数进行重配。从而对网络空闲进行空闲控制，有效的缓解车联网中的网络空闲问题，以便合理利用网络资源，且提高了空闲控制系统的稳定性。
结合上述实施例中所描述的通信方法，本发明实施例中将基于网络空闲的一级空闲控制实现对网络空闲问题进行二级空闲控制，以下将对网络空闲问题的二级空闲控制进行相关说明；请参阅图11，本发明所提供的通信方法的另一 实施例包括：
1101、基站向车载设备发送配置消息，以使该车载设备确定配置信息；该配置信息包括第一周期状态消息发送参数、第一系统通信参数、网络拥塞测量事件的上报触发条件以及网络空闲测量事件的上报触发条件；
1102、该基站接收网络拥塞信息，该网络拥塞信息指示该车载设备确定的网络拥塞参数满足了该网络拥塞测量事件的上报触发条件；
1103、该基站根据该网络拥塞信息向该车载设备发送第二周期状态消息发送参数，以使该车载设备根据该第二周期状态消息发送参数发送周期状态消息；
1104、当该第二周期状态消息发送参数达到第四阈值时，该基站向该车载设备发送第二系统通信参数，以使该车载设备根据该第二系统通信参数进行重配；
1105、该基站接收网络空闲信息，该网络空闲信息指示该车载设备确定的网络空闲参数满足了该网络空闲测量事件的上报触发条件；
1106、该基站根据该网络空闲信息向该车载设备发送第三系统通信参数，以使该车载设备根据该第三系统通信参数进行重配；
需要说明的是，步骤1101～1106的具体过程可分别对应参考图10所示实施例中的步骤1001～1006，此处不再赘述。
1107、当该第三系统通信参数达到第五阈值时，该基站向该车载设备发送第三周期状态消息发送参数，以使该车载设备根据该第三周期状态消息发送参数发送周期状态消息。
需要说明的是，当该第三系统通信参数达到第五阈值时，该基站向该车载设备发送第三周期状态消息发送参数，该车载设备中的VDC通信模块则根据该第三PSM发送参数重新配置VDC通信模块的V2V通信参数，并向周围车辆发送PSM。该第三系统通信参数达到第五阈值包括如下两种情况中至少一种：该第三系统通信参数指示的系统通信带宽减小到第五下限值、该第三系统通信参数指示的子帧配置数量减小到第六下限值。
其中，该第三周期状态消息发送参数相对于该第二周期状态消息发送参数降低网络空闲程度；其具体包括以下之一或者组合：
该第三周期状态消息发送参数包括的周期状态消息发送功率大于该第二周期状态消息发送参数包括的周期状态消息发送功率；
该第三周期状态消息发送参数包括的周期状态消息发送周期小于该第二周期状态消息发送参数包括的周期状态消息发送周期；
该第三周期状态消息发送参数包括的周期状态消息发送频率大于该第二周期状态消息发送参数包括的周期状态消息发送频率；
该第三周期状态消息发送参数包括的周期状态消息传输速率大于该第二周期状态消息发送参数包括的周期状态消息传输速率；
该第三周期状态消息发送参数包括的周期状态消息长度大于该第二周期状态消息发送参数包括的周期状态消息长度。
本发明实施例中，当该第三系统通信参数达到第五阈值时，该基站向该车载设备发送第三周期状态消息发送参数，以使该车载设备根据该第三周期状态消息发送参数发送周期状态消息。因此，通过二级空闲控制能够有效的缓解车联网中的网络空闲问题，以便合理利用网络资源，且提高了空闲控制系统的稳定性。
可选的，上述实施例中的网络拥塞测量事件的上报触发条件以及网络空闲测量事件的上报触发条件均可配置为基于周期性触发的测量事件；具体的，基于周期触发的测量事件的重要参数是测量周期T_C和监测时间T，车载设备根据测量周期T_C，周期性的向基站上报当前网络拥塞指示参数或者当前网络空闲指示参数，基站针对当前网络拥塞指示参数或者当前网络空闲指示参数对网络环境进行控制，具体过程可参考上述内容，此处不作具体描述。
为便于理解，下面以一具体应用场景对本发明实施例中通信方法进行具体描述：
假设车辆装有该车载设备，该车载设备有两个通信模块：一个是传统的LTE通信模块，用于车辆和基站之间通信和交互信息；另一个是VDC通信模块，用于车辆和车辆之间直接通信；其中，VDC通信模块的工作频带可以是车车直连通信的专用频谱，可以是传统的LTE频谱，也可以是非授权频谱；而且，VDC通信模块的通信技术可以是欧美现在采用的802.11p的通信技术，也可以是基于LTE设计的VDC通信技术。
首先，该车辆通过LTE通信模块接收基站发送的配置消息，该配置消息可以包括PSM发送参数、系统通信带宽、子帧配置、网络拥塞测量事件的上报触发条件配置、网络空闲测量事件的上报触发条件配置等。具体的，该网络拥塞测量事件的上报触发条件的重要参数是网络拥塞上报门限Thresh_high和监测时间T，该网络空闲测量事件的上报触发条件的重要参数是网络空闲上报门限Thresh_low和监测时间T。
该车辆通过VDC通信模块根据LTE通信模块接收到的配置消息，配置VDC通信模块的V2V通信参数、网络拥塞测量事件的上报触发条件以及网络空闲测量事件的上报触发条件，并与其它车辆进行V2V通信。
车辆对车车通信资源占用率进行测量，并检测是否满足网络拥塞测量事件的上报触发条件，或者是否满足网络空闲测量事件的上报触发条件；
本场景中以网络拥塞测量事件的上报触发条件为例展开说明，具体的，例如，网络拥塞测量事件的上报触发条件是该车辆中的车载设备在监测时间T内测量的车车通信资源占用率大于或等于网络拥塞上报门限Thresh_high，即触发网络拥塞测量事件上报。为避免乒乓效应，可以考虑定义该网络拥塞测量事件的进入和离开条件，如，
进入条件：
Ms–Hys>Thresh_high
离开条件：
Ms+Hys<Thresh_high
其中Hys是与该网络拥塞测量事件相关的余量参数，Ms是车载设备对车车通信资源占用率的测量值。
当已配置的网络拥塞测量事件的上报触发条件满足后，车辆中的车载设备启动RRC连接过程，与基站建立RRC连接；与基站建立RRC连接之后，该车辆中的车载设备向基站上报CBR和/或当前PSM发送参数，其中CBR可以是全部PRB的占用率，PSM发送参数可以包括PSM发送功率，PSM发送周期，PSM发送频率，PSM传输速率，PSM包大小等。
基站在接收到小区内该车辆上报的CBR和当前PSM发送参数后，会综合考虑小区内V2V通信资源的负载情况并对是否进行网络拥塞控制进行决策； 具体的，基站首先对PSM发送参数进行调整，该调整过程可以包括减小周期状态消息的发送功率、增大周期状态消息的发送周期、减小周期状态消息的发送频率、减小周期状态消息的传输速率、减小周期状态消息的消息大小等。
基站将调整后的PSM发送参数通过系统广播消息发送给小区覆盖内的车辆进行集体拥塞控制，或者通过RRC专用信令发送给小区内指定车辆进行单独拥塞控制；车辆中的LTE通信模块接收基站下发的由该基站调整后的PSM发送参数，车辆中的VDC通信模块会根据LTE通信模块接收到的调整后的PSM发送参数重新配置VDC通信模块的V2V通信参数，并向周围车辆发送PSM，从而有效的缓解车联网中的网络拥塞问题。
当该基站对小区内车辆的PSM发送参数的调整值达到调整上限时，该基站会综合考虑小区内V2V通信资源的负载情况并对是否进行网络拥塞二级控制进行决策；具体的，基站对系统通信参数进行调整，该调整过程可以包括增加系统通信带宽、增加子帧配置等。
基站将调整后的系统通信参数通过系统广播消息发送给小区覆盖内的车辆进行集体二级拥塞控制，或者通过RRC专用信令发送给小区内指定车辆进行单独二级拥塞控制；车辆中的LTE通信模块接收基站下发的由该基站调整后的系统通信参数，车辆中的VDC通信模块会根据LTE通信模块接收到的调整后的系统通信参数重新配置VDC通信模块的V2V通信参数，从而有效的缓解车联网中的网络拥塞问题。
同样的，以网络空闲测量事件的上报触发条件为例，具体的，例如，网络空闲测量事件的上报触发条件是该车辆中的车载设备在监测时间T内测量的车车通信资源占用率小于网络空闲上报门限Thresh_low，即触发网络空闲测量事件上报。为避免乒乓效应，可以考虑定义该网络空闲测量事件的进入和离开条件，如，
进入条件：
Ms+Hys<Thresh_low
离开条件：
Ms-Hys>Thresh_low
其中Hys是与该网络空闲测量事件相关的余量参数，Ms是车载设备对车 车通信资源占用率的测量值。
当已配置的网络空闲测量事件的上报触发条件满足后，车辆中的车载设备启动RRC连接过程，与基站建立RRC连接；与基站建立RRC连接之后，该车辆中的车载设备向基站上报CBR和/或当前PSM发送参数，其中CBR可以是全部PRB的占用率，PSM发送参数可以包括PSM发送功率，PSM发送周期，PSM发送频率，PSM传输速率，PSM包大小等。
基站在接收到小区内该车辆上报的CBR和当前PSM发送参数后，会综合考虑小区内V2V通信资源的负载情况并对是否进行网络空闲控制进行决策；具体的，基站首先对系统通信参数进行调整，该调整过程可以包括减少系统通信带宽、减少子帧配置数量等。
基站将调整后的系统通信参数通过系统广播消息发送给小区覆盖内的车辆进行集体网络空闲控制，或者通过RRC专用信令发送给小区内指定车辆进行单独网络空闲控制；车辆中的LTE通信模块接收基站下发的由该基站调整后的系统通信参数，车辆中的VDC通信模块会根据LTE通信模块接收到的调整后的系统通信参数重新配置VDC通信模块的V2V通信参数，从而有效的缓解车联网中的网络空闲问题，以达到合理利用网络资源的效果。
当该基站对系统通信参数的调整值达到调整下限时，该基站会综合考虑小区内V2V通信资源的负载情况并对是否进行网络空闲二级控制进行决策；具体的，基站对PSM发送参数进行调整，该调整过程可以包括增大周期状态消息的发送功率、减小周期状态消息的发送周期、增大周期状态消息的发送频率、增大周期状态消息的传输速率、增大周期状态消息的消息大小等。
基站将调整后的PSM发送参数通过系统广播消息发送给小区覆盖内的车辆进行集体网络空闲控制，或者通过RRC专用信令发送给小区内指定车辆进行单独网络空闲控制；车辆中的LTE通信模块接收基站下发的由该基站调整后的PSM发送参数，车辆中的VDC通信模块会根据LTE通信模块接收到的调整后的PSM发送参数重新配置VDC通信模块的V2V通信参数，并向周围车辆发送PSM，从而有效的缓解车联网中的网络空闲问题，以达到合理利用网络资源的效果。
在实际运用中，上述网络拥塞测量事件的上报触发条件以及上述网络空闲 测量事件的上报触发条件均可配置为基于周期性触发的测量事件；具体的，基于周期性触发的测量事件的重要参数是测量周期T_C和监测时间T，车载设备根据测量周期T_C，周期性的向基站上报当前网络拥塞指示参数或者当前网络空闲指示参数，基站针对当前网络拥塞指示参数或者当前网络空闲指示参数对网络环境进行控制。例如，在该车载设备设定一个定时器，该定时器设定时长为30秒，该车载设备每30秒向基站上报CBR和/或当前PSM发送参数，基站在接收到小区内该车辆上报的CBR和当前PSM发送参数后，会综合考虑小区内V2V通信资源的负载情况并对是否进行网络拥塞控制或者网络空闲控制进行决策；具体过程此处不再赘述。
为便于更好的实施本发明实施例的通信方法，下面还提供用于实施该通信方法的相关装置。
请参阅图12，本发明所提供的车载设备的一个实施例包括：
第一确定单元1201，用于确定配置信息，该配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
第二确定单元1202，用于确定网络拥塞指示参数，该网络拥塞指示参数用于指示该车载设备所处网络环境的拥塞程度；
第一上报单元1203，用于在该网络拥塞指示参数满足该网络拥塞测量事件的上报触发条件时，向该基站上报网络拥塞信息；
第一接收单元1204，用于接收该基站根据该网络拥塞信息发送的第二周期状态消息发送参数，其中该第二周期状态消息发送参数相对于该第一周期状态消息发送参数降低网络拥塞程度；
第一发送单元1205，用于根据该第二周期状态消息发送参数发送周期状态消息。
需要说明的是，该第二周期状态消息发送参数相对于该第一周期状态消息发送参数降低网络拥塞程度包括以下之一或者组合：
该第二周期状态消息发送参数包括的周期状态消息发送功率小于该第一周期状态消息发送参数包括的周期状态消息发送功率；
该第二周期状态消息发送参数包括的周期状态消息发送周期大于该第一周期状态消息发送参数包括的周期状态消息发送周期；
该第二周期状态消息发送参数包括的周期状态消息发送频率小于该第一周期状态消息发送参数包括的周期状态消息发送频率；
该第二周期状态消息发送参数包括的周期状态消息传输速率小于该第一周期状态消息发送参数包括的周期状态消息传输速率；
该第二周期状态消息发送参数包括的周期状态消息长度小于该第一周期状态消息发送参数包括的周期状态消息长度。
进一步的，该第一确定单元1201具体用于接收基站通过系统广播发送的配置消息，以确定该配置信息；或，
该第一确定单元1201具体用于接收基站通过无线资源控制专用信令发送的配置消息，以确定该配置信息；或，
该第一确定单元1201具体用于通过预配置确定该配置信息。
其中，该网络拥塞指示参数满足该网络拥塞测量事件的上报触发条件具体包括以下之一：
在第一时间段内，车车通信资源占用率大于或等于第一阈值；
在第一时间段内，车车通信数据包的接收成功率小于或等于第二阈值；
在第一时间段内，车车通信数据包的发送等待时长大于或等于第三阈值。
现列举其中一种作具体说明：
例如，该网络拥塞测量事件的上报触发条件可以是在监测时间T内测量的车车通信资源占用率大于或等于网络拥塞上报门限Thresh_high，即触发网络拥塞测量事件上报。为避免乒乓效应，可以考虑定义该网络拥塞测量事件的进入和离开条件，如，
进入条件：
Ms–Hys>Thresh_high
离开条件：
Ms+Hys<Thresh_high
其中Hys是与该网络拥塞测量事件相关的余量参数，Ms是车载设备对车车通信资源占用率的测量值。
本发明实施例中，第一上报单元1203在该网络拥塞指示参数满足该网络拥塞测量事件的上报触发条件时，向该基站上报网络拥塞信息；第一接收单元 1204接收该基站根据该网络拥塞信息发送的第二周期状态消息发送参数，其中该第二周期状态消息发送参数相对于该第一周期状态消息发送参数降低网络拥塞程度；第一发送单元1205根据该第二周期状态消息发送参数发送周期状态消息。从而对网络拥塞进行全局拥塞控制，有效的缓解车联网中的网络拥塞问题，提高了拥塞控制系统的稳定性。
基于上述实施例中的车载设备，可选的，该配置信息还包括第一系统通信参数，该第一系统通信参数包括系统通信带宽和/或子帧配置数量，如图13所示，该车载设备还包括：
第二接收单元1301，用于在该第二周期状态消息的发送参数达到第四阈值时，接收该基站发送的第二系统通信参数，其中该第二系统通信参数相对于该第一系统通信参数降低网络拥塞程度；
第一重配单元1302，用于根据该第二系统通信参数进行重配。
需要说明的是，该第二系统通信参数相对于该第一系统通信参数降低网络拥塞程度包括以下之一或者组合：
该第二系统通信参数指示的系统通信带宽大于该第一系统通信参数指示的系统通信带宽；
该第二系统通信参数指示的子帧配置数量大于该第一系统通信参数指示的子帧配置数量。
该第二周期状态消息的发送参数达到第四阈值包括如下五种情况中至少一种：该第二周期状态消息的发送功率减小到第一下限值、该第二周期状态消息的发送周期增大到第一上限值、该第二周期状态消息的发送频率减小到第二下限值、该第二周期状态消息的传输速率减小到第三下限值、该第二周期状态消息的消息大小减小到第四下限值。
本发明实施例中，第二接收单元1301在该第二周期状态消息的发送参数达到第四阈值时，接收该基站发送的第二系统通信参数，第一重配单元1302根据该第二系统通信参数进行重配。因此，通过二级拥塞控制能够有效的缓解车联网中的网络拥塞问题，提高了拥塞控制系统的稳定性。
基于上述实施例中的车载设备，可选的，如图14所示，该车载设备还包括：
第三确定单元1401，用于确定网络空闲指示参数，该网络空闲指示参数用于指示该车载设备所处网络环境的空闲程度；
第二上报单元1402，用于在该网络空闲指示参数满足该网络空闲测量事件的上报触发条件时，向该基站上报网络空闲信息；
第四接收单元1403，用于接收该基站根据该网络空闲信息发送的第三系统通信参数，其中该第三系统通信参数相对于该第二系统通信参数降低网络空闲程度；
第二重配单元1404，用于根据该第三系统通信参数进行重配。
需要说明的是，该网络空闲指示参数满足该网络空闲测量事件的上报触发条件可包括如下三种实现方式中任意一种：
在第一时间段内，车车通信资源占用率小于第六阈值；
在第一时间段内，车车通信数据包的接收成功率大于第七阈值；
在第一时间段内，车车通信数据包的发送等待时长小于第八阈值。
现列举其中一种具体实现方式：
例如，该网络空闲测量事件的上报触发条件可以是在监测时间T内测量的车车通信资源占用率小于网络空闲上报门限Thresh_low，即触发网络空闲测量事件上报。为避免乒乓效应，可以考虑定义该网络空闲测量事件的进入和离开条件，如，
进入条件：
Ms+Hys<Thresh_low
离开条件：
Ms-Hys>Thresh_low
其中Hys是与该网络空闲测量事件相关的余量参数，Ms是车载设备对车车通信资源占用率的测量值。
本发明实施例中，第二上报单元1402在该网络空闲指示参数满足该网络空闲测量事件的上报触发条件时，向该基站上报网络空闲信息；第四接收单元1403接收该基站根据该网络空闲信息发送的第三系统通信参数，其中该第三系统通信参数相对于该第二系统通信参数降低网络空闲程度；第二重配单元1404根据该第三系统通信参数进行重配。从而对网络空闲进行空闲控制，有 效的缓解车联网中的网络空闲问题，以便合理利用网络资源，且提高了空闲控制系统的稳定性。
基于上述实施例中的车载设备，可选的，如图15所示，该车载设备还包括：
第五接收单元1501，用于在该第三系统通信参数达到第五阈值时，接收该基站发送的第三周期状态消息发送参数，其中该第三周期状态消息发送参数相对于该第二周期状态消息发送参数降低网络空闲程度；
第二发送单元1502，用于根据该第三周期状态消息发送参数发送周期状态消息。
本发明实施例中，第五接收单元1501在该第三系统通信参数达到第五阈值时，接收该基站发送的第三周期状态消息发送参数；第二发送单元1502根据该第三周期状态消息发送参数发送周期状态消息。因此，通过二级空闲控制能够有效的缓解车联网中的网络空闲问题，以便合理利用网络资源，且提高了空闲控制系统的稳定性。
图12至图15所示的实施例从功能单元的角度对车载设备的具体结构进行了说明，以下结合图16所示的实施例从硬件角度对车载设备的具体结构进行说明：
如图16所示，该车载设备包括：接收器1601、发射器1602、处理器1603和存储器1604。
本发明实施例涉及的用户设备可以具有比图16所示出的更多或更少的部件，可以组合两个或更多个部件，或者可以具有不同的部件配置或设置，各个部件可以在包括一个或多个信号处理和/或专用集成电路在内的硬件、软件或硬件和软件的组合实现。
该处理器1603用于用于读取该存储器1604中所存储的指令，以执行如下操作：
确定配置信息，该配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
确定网络拥塞指示参数，该网络拥塞指示参数用于指示该车载设备所处网络环境的拥塞程度；
在该网络拥塞指示参数满足该网络拥塞测量事件的上报触发条件时，向该基站上报网络拥塞信息；
接收该基站根据该网络拥塞信息发送的第二周期状态消息发送参数，其中该第二周期状态消息发送参数相对于该第一周期状态消息发送参数降低网络拥塞程度；
根据该第二周期状态消息发送参数发送周期状态消息。
可选的，该配置信息还包括第一系统通信参数，该第一系统通信参数包括系统通信带宽和/或子帧配置数量，该处理器1603还用于执行如下操作：
在该第二周期状态消息的发送参数达到第四阈值时，接收该基站发送的第二系统通信参数，其中该第二系统通信参数相对于该第一系统通信参数降低网络拥塞程度；
根据该第二系统通信参数进行重配。
可选的，该配置信息还包括网络空闲测量事件的上报触发条件，该处理器1603还用于执行如下操作：
确定网络空闲指示参数，该网络空闲指示参数用于指示该车载设备所处网络环境的空闲程度；
在该网络空闲指示参数满足该网络空闲测量事件的上报触发条件时，向该基站上报网络空闲信息；
接收该基站根据该网络空闲信息发送的第三系统通信参数，其中该第三系统通信参数相对于该第二系统通信参数降低网络空闲程度；
根据该第三系统通信参数进行重配。
可选的，该处理器1603还用于执行如下操作：
在该第三系统通信参数达到第五阈值时，接收该基站发送的第三周期状态消息发送参数，其中该第三周期状态消息发送参数相对于该第二周期状态消息发送参数降低网络空闲程度；
根据该第三周期状态消息发送参数发送周期状态消息。
本发明实施例中，处理器1603在该网络拥塞指示参数满足该网络拥塞测量事件的上报触发条件时，向该基站上报网络拥塞信息；处理器1603接收该基站根据该网络拥塞信息发送的第二周期状态消息发送参数，并根据该第二周 期状态消息发送参数发送周期状态消息。从而对网络拥塞进行全局拥塞控制，有效的缓解车联网中的网络拥塞问题，提高了拥塞控制系统的稳定性。
以上对实施上述通信方法的车载设备的结构进行了详细描述，下面将对实施上述通信方法的基站设备的结构进行相关说明，请参阅图17，本发明所提供的基站设备的一个实施例包括：
第一发送模块1701，用于向车载设备发送配置消息，以使该车载设备确定配置信息；该配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
第一接收模块1702，用于接收网络拥塞信息，该网络拥塞信息指示该车载设备确定的网络拥塞参数满足了该网络拥塞测量事件的上报触发条件，其中，该网络拥塞参数用于指示该车载设备所处网络环境的拥塞程度；
第二发送模块1703，用于根据该网络拥塞信息向该车载设备发送第二周期状态消息发送参数，以使该车载设备根据该第二周期状态消息发送参数发送周期状态消息；其中该第二周期状态消息发送参数相对于该第一周期状态消息发送参数降低网络拥塞程度。
需要说明的是，该第二周期状态消息发送参数相对于该第一周期状态消息发送参数降低网络拥塞程度包括以下之一或者组合：
该第二周期状态消息发送参数包括的周期状态消息发送功率小于该第一周期状态消息发送参数包括的周期状态消息发送功率；
该第二周期状态消息发送参数包括的周期状态消息发送周期大于该第一周期状态消息发送参数包括的周期状态消息发送周期；
该第二周期状态消息发送参数包括的周期状态消息发送频率小于该第一周期状态消息发送参数包括的周期状态消息发送频率；
该第二周期状态消息发送参数包括的周期状态消息传输速率小于该第一周期状态消息发送参数包括的周期状态消息传输速率；
该第二周期状态消息发送参数包括的周期状态消息长度小于该第一周期状态消息发送参数包括的周期状态消息长度。
进一步的，该第一发送模块1701具有用于通过系统广播向该车载设备发送配置消息；或，
该第一发送模块1701具体用于通过无线资源控制专用信令向该车载设备发送配置消息。
其中，该网络拥塞指示参数满足该网络拥塞测量事件的上报触发条件具体包括以下之一：
在第一时间段内，车车通信资源占用率大于或等于第一阈值；
在第一时间段内，车车通信数据包的接收成功率小于或等于第二阈值；
在第一时间段内，车车通信数据包的发送等待时长大于或等于第三阈值。
现列举其中一种作具体说明：
例如，该网络拥塞测量事件的上报触发条件可以是在监测时间T内测量的车车通信资源占用率大于或等于网络拥塞上报门限Thresh_high，即触发网络拥塞测量事件上报。为避免乒乓效应，可以考虑定义该网络拥塞测量事件的进入和离开条件，如，
进入条件：
Ms–Hys>Thresh_high
离开条件：
Ms+Hys<Thresh_high
其中Hys是与该网络拥塞测量事件相关的余量参数，Ms是车载设备对车车通信资源占用率的测量值。
本发明实施例中，第一发送模块1701向车载设备发送配置消息，以使该车载设备确定配置信息；第一接收模块1702接收网络拥塞信息；第二发送模块1703根据该网络拥塞信息向该车载设备发送第二周期状态消息发送参数，以使该车载设备根据该第二周期状态消息发送参数发送周期状态消息。从而对网络拥塞进行全局拥塞控制，有效的缓解车联网中的网络拥塞问题，提高了拥塞控制系统的稳定性。
基于上述图17所示实施例中的基站设备，可选的，该配置信息还包括第一系统通信参数，该第一系统通信参数包括系统通信带宽和/或子帧配置数量，如图18所示，该基站设备还包括：
第三发送模块1801，用于在该第二周期状态消息的发送参数达到第四阈值时，向该车载设备发送第二系统通信参数，以使该车载设备根据该第二系统 通信参数进行重配；其中该第二系统通信参数相对于该第一系统通信参数降低网络拥塞程度。
需要说明的是，该第二周期状态消息的发送参数达到第四阈值包括如下五种情况中至少一种：该第二周期状态消息的发送功率减小到第一下限值、该第二周期状态消息的发送周期增大到第一上限值、该第二周期状态消息的发送频率减小到第二下限值、该第二周期状态消息的传输速率减小到第三下限值、该第二周期状态消息的消息大小减小到第四下限值。
其中，该第二系统通信参数相对于该第一系统通信参数降低网络拥塞程度包括以下之一或者组合：
该第二系统通信参数指示的系统通信带宽大于该第一系统通信参数指示的系统通信带宽；
该第二系统通信参数指示的子帧配置数量大于该第一系统通信参数指示的子帧配置数量。
本发明实施例中，第三发送模块1801在该第二周期状态消息的发送参数达到第四阈值时，向该车载设备发送第二系统通信参数，以使该车载设备根据该第二系统通信参数进行重配。因此，通过二级拥塞控制能够有效的缓解车联网中的网络拥塞问题，提高了拥塞控制系统的稳定性。
基于上述实施例中的基站设备，可选的，如图19所示，该基站设备还包括：
第二接收模块1901，用于接收网络空闲信息，该网络空闲信息指示该车载设备确定的网络空闲参数满足了该网络空闲测量事件的上报触发条件，其中，该网络空闲参数用于指示该车载设备所处网络环境的空闲程度；
第四发送模块1902，用于根据该网络空闲信息向该车载设备发送第三系统通信参数，以使该车载设备根据该第三系统通信参数进行重配；其中该第三系统通信参数相对于该第二系统通信参数降低网络空闲程度。
需要说明的是，该网络空闲指示参数满足该网络空闲测量事件的上报触发条件可包括如下三种实现方式中任意一种：
在第一时间段内，车车通信资源占用率小于第六阈值；
在第一时间段内，车车通信数据包的接收成功率大于第七阈值；
在第一时间段内，车车通信数据包的发送等待时长小于第八阈值。
现列举其中一种具体实现方式：
例如，该网络空闲测量事件的上报触发条件可以是在监测时间T内测量的车车通信资源占用率小于网络空闲上报门限Thresh_low，即触发网络空闲测量事件上报。为避免乒乓效应，可以考虑定义该网络空闲测量事件的进入和离开条件，如，
进入条件：
Ms+Hys<Thresh_low
离开条件：
Ms-Hys>Thresh_low
其中Hys是与该网络空闲测量事件相关的余量参数，Ms是车载设备对车车通信资源占用率的测量值。
本发明实施例中，第二接收模块1901接收网络空闲信息；第四发送模块1902根据该网络空闲信息向该车载设备发送第三系统通信参数，以使该车载设备根据该第三系统通信参数进行重配。从而对网络空闲进行空闲控制，有效的缓解车联网中的网络空闲问题，以便合理利用网络资源，且提高了空闲控制系统的稳定性。
基于上述实施例中的基站设备，可选的，如图20所示，该基站设备还包括：
第五发送模块2001，用于在该第三系统通信参数达到第五阈值时，向该车载设备发送第三周期状态消息发送参数，以使该车载设备根据该第三周期状态消息发送参数发送周期状态消息；其中该第三周期状态消息发送参数相对于该第二周期状态消息发送参数降低网络空闲程度。
本发明实施例中，第五发送模块2001在该第三系统通信参数达到第五阈值时，向该车载设备发送第三周期状态消息发送参数，以使该车载设备根据该第三周期状态消息发送参数发送周期状态消息。因此，通过二级空闲控制能够有效的缓解车联网中的网络空闲问题，以便合理利用网络资源，且提高了空闲控制系统的稳定性。
图17至图20所示的实施例从功能单元的角度对基站设备的具体结构进行 了说明，以下结合图21所示的实施例从硬件角度对基站设备的具体结构进行说明：
如图21所示，该基站设备包括：接收器2101、发射器2102、处理器2103和存储器2104。
本发明实施例涉及的用户设备可以具有比图21所示出的更多或更少的部件，可以组合两个或更多个部件，或者可以具有不同的部件配置或设置，各个部件可以在包括一个或多个信号处理和/或专用集成电路在内的硬件、软件或硬件和软件的组合实现。
该处理器2103用于用于读取该存储器2104中所存储的指令，以执行如下操作：
向车载设备发送配置消息，以使该车载设备确定配置信息；该配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
接收网络拥塞信息，该网络拥塞信息指示该车载设备确定的网络拥塞参数满足了该网络拥塞测量事件的上报触发条件，其中，该网络拥塞参数用于指示该车载设备所处网络环境的拥塞程度；
根据该网络拥塞信息向该车载设备发送第二周期状态消息发送参数，以使该车载设备根据该第二周期状态消息发送参数发送周期状态消息；其中该第二周期状态消息发送参数相对于该第一周期状态消息发送参数降低网络拥塞程度。
可选的，该配置信息还包括第一系统通信参数，该第一系统通信参数包括系统通信带宽和/或子帧配置数量，该处理器2103还用于执行如下操作：
在该第二周期状态消息的发送参数达到第四阈值时，向该车载设备发送第二系统通信参数，以使该车载设备根据该第二系统通信参数进行重配；其中该第二系统通信参数相对于该第一系统通信参数降低网络拥塞程度。
可选的，该配置信息还包括网络空闲测量事件的上报触发条件，该处理器2103还用于执行如下操作：
接收网络空闲信息，该网络空闲信息指示该车载设备确定的网络空闲参数满足了该网络空闲测量事件的上报触发条件，其中，该网络空闲参数用于指示该车载设备所处网络环境的空闲程度；
根据该网络空闲信息向该车载设备发送第三系统通信参数，以使该车载设备根据该第三系统通信参数进行重配；其中该第三系统通信参数相对于该第二系统通信参数降低网络空闲程度。
可选的，该处理器2103还用于执行如下操作：
在该第三系统通信参数达到第五阈值时，向该车载设备发送第三周期状态消息发送参数，以使该车载设备根据该第三周期状态消息发送参数发送周期状态消息；其中该第三周期状态消息发送参数相对于该第二周期状态消息发送参数降低网络空闲程度。
本发明实施例中，处理器2103向车载设备发送配置消息，以使该车载设备确定配置信息；处理器2103接收网络拥塞信息，并根据该网络拥塞信息向该车载设备发送第二周期状态消息发送参数，以使该车载设备根据该第二周期状态消息发送参数发送周期状态消息。从而对网络拥塞进行全局拥塞控制，有效的缓解车联网中的网络拥塞问题，提高了拥塞控制系统的稳定性。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元 中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或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中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (49)

  1. 一种通信方法，其特征在于，包括：
    车载设备确定配置信息，所述配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
    所述车载设备确定网络拥塞指示参数，所述网络拥塞指示参数用于指示所述车载设备所处网络环境的拥塞程度；
    当所述网络拥塞指示参数满足所述网络拥塞测量事件的上报触发条件时，所述车载设备向所述基站上报网络拥塞信息；
    所述车载设备接收所述基站根据所述网络拥塞信息发送的第二周期状态消息发送参数，其中所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度；
    所述车载设备根据所述第二周期状态消息发送参数发送周期状态消息。
  2. 根据权利要求1所述的通信方法，其特征在于，所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度包括以下之一或者组合：
    所述第二周期状态消息发送参数包括的周期状态消息发送功率小于所述第一周期状态消息发送参数包括的周期状态消息发送功率；
    所述第二周期状态消息发送参数包括的周期状态消息发送周期大于所述第一周期状态消息发送参数包括的周期状态消息发送周期；
    所述第二周期状态消息发送参数包括的周期状态消息发送频率小于所述第一周期状态消息发送参数包括的周期状态消息发送频率；
    所述第二周期状态消息发送参数包括的周期状态消息传输速率小于所述第一周期状态消息发送参数包括的周期状态消息传输速率；
    所述第二周期状态消息发送参数包括的周期状态消息长度小于所述第一周期状态消息发送参数包括的周期状态消息长度。
  3. 根据权利要求1所述的通信方法，其特征在于，所述车载设备确定配置信息具体包括以下之一：
    所述车载设备接收基站通过系统广播发送的配置消息，以确定所述配置信息；
    所述车载设备接收基站通过无线资源控制专用信令发送的配置消息，以确定所述配置信息；
    所述车载设备通过预配置确定所述配置信息。
  4. 根据权利要求1至3任一项所述的通信方法，其特征在于，所述网络拥塞指示参数满足所述网络拥塞测量事件的上报触发条件具体包括：
    在第一时间段内，车车通信资源占用率大于或等于第一阈值。
  5. 根据权利要求4所述的通信方法，其特征在于，所述方法还包括：
    当在所述第一时间段内，所述车车通信资源占用率小于所述第一阈值时，所述车载设备停止向所述基站上报网络拥塞信息。
  6. 根据权利要求1至3任一项所述的通信方法，其特征在于，所述网络拥塞指示参数满足所述网络拥塞测量事件的上报触发条件具体包括：
    在第一时间段内，车车通信数据包的接收成功率小于或等于第二阈值。
  7. 根据权利要求6所述的通信方法，其特征在于，所述方法还包括：
    当在所述第一时间段内，所述车车通信数据包的接收成功率大于所述第二阈值时，所述车载设备停止向所述基站上报网络拥塞信息。
  8. 根据权利要求1至3任一项所述的通信方法，其特征在于，所述网络拥塞指示参数满足所述网络拥塞测量事件的上报触发条件具体包括：
    在第一时间段内，车车通信数据包的发送等待时长大于或等于第三阈值。
  9. 根据权利要求8所述的通信方法，其特征在于，所述方法还包括：
    当在所述第一时间段内，所述车车通信数据包的发送等待时长小于所述第三阈值时，所述车载设备停止向所述基站上报网络拥塞信息。
  10. 根据权利要求1至3任一项所述的通信方法，其特征在于，所述配置信息还包括第一系统通信参数，所述第一系统通信参数包括系统通信带宽和/或子帧配置数量，所述方法还包括：
    当所述第二周期状态消息发送参数达到第四阈值时，所述车载设备接收所述基站发送的第二系统通信参数，其中所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程度；
    所述车载设备根据所述第二系统通信参数进行重配。
  11. 根据权利要求10所述的通信方法，其特征在于，所述第二系统通信 参数相对于所述第一系统通信参数降低网络拥塞程度包括以下之一或者组合：
    所述第二系统通信参数指示的系统通信带宽大于所述第一系统通信参数指示的系统通信带宽；
    所述第二系统通信参数指示的子帧配置数量大于所述第一系统通信参数指示的子帧配置数量。
  12. 根据权利要求10所述的通信方法，其特征在于，所述第二周期状态消息发送参数达到第四阈值包括如下五种情况中至少一种：所述第二周期状态消息的发送功率减小到第一下限值、所述第二周期状态消息的发送周期增大到第一上限值、所述第二周期状态消息的发送频率减小到第二下限值、所述第二周期状态消息的传输速率减小到第三下限值、所述第二周期状态消息的消息大小减小到第四下限值。
  13. 根据权利要求10所述的通信方法，其特征在于，所述配置信息还包括网络空闲测量事件的上报触发条件，所述方法还包括：
    所述车载设备确定网络空闲指示参数，所述网络空闲指示参数用于指示所述车载设备所处网络环境的空闲程度；
    当所述网络空闲指示参数满足所述网络空闲测量事件的上报触发条件时，所述车载设备向所述基站上报网络空闲信息；
    所述车载设备接收所述基站根据所述网络空闲信息发送的第三系统通信参数，其中所述第三系统通信参数相对于所述第二系统通信参数降低网络空闲程度；
    所述车载设备根据所述第三系统通信参数进行重配。
  14. 根据权利要求13所述的通信方法，其特征在于，所述方法还包括：
    当所述第三系统通信参数达到第五阈值时，所述车载设备接收所述基站发送的第三周期状态消息发送参数，其中所述第三周期状态消息发送参数相对于所述第二周期状态消息发送参数降低网络空闲程度；
    所述车载设备根据所述第三周期状态消息发送参数发送周期状态消息。
  15. 一种通信方法，其特征在于，包括：
    基站向车载设备发送配置消息，以使所述车载设备确定配置信息；所述配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
    所述基站接收网络拥塞信息，所述网络拥塞信息指示所述车载设备确定的网络拥塞参数满足了所述网络拥塞测量事件的上报触发条件，其中，所述网络拥塞参数用于指示所述车载设备所处网络环境的拥塞程度；
    所述基站根据所述网络拥塞信息向所述车载设备发送第二周期状态消息发送参数，以使所述车载设备根据所述第二周期状态消息发送参数发送周期状态消息；其中所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度。
  16. 根据权利要求15所述的通信方法，其特征在于，所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度包括以下之一或者组合：
    所述第二周期状态消息发送参数包括的周期状态消息发送功率小于所述第一周期状态消息发送参数包括的周期状态消息发送功率；
    所述第二周期状态消息发送参数包括的周期状态消息发送周期大于所述第一周期状态消息发送参数包括的周期状态消息发送周期；
    所述第二周期状态消息发送参数包括的周期状态消息发送频率小于所述第一周期状态消息发送参数包括的周期状态消息发送频率；
    所述第二周期状态消息发送参数包括的周期状态消息传输速率小于所述第一周期状态消息发送参数包括的周期状态消息传输速率；
    所述第二周期状态消息发送参数包括的周期状态消息长度小于所述第一周期状态消息发送参数包括的周期状态消息长度。
  17. 根据权利要求15所述的通信方法，其特征在于，所述基站向车载设备发送配置消息具体包括以下之一：
    所述基站通过系统广播向所述车载设备发送配置消息；
    所述基站通过无线资源控制专用信令向所述车载设备发送配置消息。
  18. 根据权利要求15至17任一项所述的通信方法，其特征在于，所述网络拥塞信息为在第一时间段内，车车通信资源占用率大于或等于第一阈值时发送的。
  19. 根据权利要求15至17任一项所述的通信方法，其特征在于，所述网络拥塞信息为在第一时间段内，车车通信数据包的接收成功率小于或等于第二 阈值时发送的。
  20. 根据权利要求15至17任一项所述的通信方法，其特征在于，所述网络拥塞信息为在第一时间段内，车车通信数据包的发送等待时长大于或等于第三阈值时发送的。
  21. 根据权利要求15至17任一项所述的通信方法，其特征在于，所述配置信息还包括第一系统通信参数，所述第一系统通信参数包括系统通信带宽和/或子帧配置数量，所述方法还包括：
    当所述第二周期状态消息发送参数达到第四阈值时，所述基站向所述车载设备发送第二系统通信参数，以使所述车载设备根据所述第二系统通信参数进行重配；其中所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程度。
  22. 根据权利要求21所述的通信方法，其特征在于，所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程度包括以下之一或者组合：
    所述第二系统通信参数指示的系统通信带宽大于所述第一系统通信参数指示的系统通信带宽；
    所述第二系统通信参数指示的子帧配置数量大于所述第一系统通信参数指示的子帧配置数量。
  23. 根据权利要求21所述的通信方法，其特征在于，所述第二周期状态消息发送参数达到第四阈值包括如下五种情况中至少一种：所述第二周期状态消息的发送功率减小到第一下限值、所述第二周期状态消息的发送周期增大到第一上限值、所述第二周期状态消息的发送频率减小到第二下限值、所述第二周期状态消息的传输速率减小到第三下限值、所述第二周期状态消息的消息大小减小到第四下限值。
  24. 根据权利要求21所述的通信方法，其特征在于，所述配置信息还包括网络空闲测量事件的上报触发条件，所述方法还包括：
    所述基站接收网络空闲信息，所述网络空闲信息指示所述车载设备确定的网络空闲参数满足了所述网络空闲测量事件的上报触发条件，其中，所述网络空闲参数用于指示所述车载设备所处网络环境的空闲程度；
    所述基站根据所述网络空闲信息向所述车载设备发送第三系统通信参数， 以使所述车载设备根据所述第三系统通信参数进行重配；其中所述第三系统通信参数相对于所述第二系统通信参数降低网络空闲程度。
  25. 根据权利要求24所述的通信方法，其特征在于，所述方法还包括：
    当所述第三系统通信参数达到第五阈值时，所述基站向所述车载设备发送第三周期状态消息发送参数，以使所述车载设备根据所述第三周期状态消息发送参数发送周期状态消息；其中所述第三周期状态消息发送参数相对于所述第二周期状态消息发送参数降低网络空闲程度。
  26. 一种车载设备，其特征在于，包括：
    第一确定单元，用于确定配置信息，所述配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
    第二确定单元，用于确定网络拥塞指示参数，所述网络拥塞指示参数用于指示所述车载设备所处网络环境的拥塞程度；
    第一上报单元，用于在所述网络拥塞指示参数满足所述网络拥塞测量事件的上报触发条件时，向所述基站上报网络拥塞信息；
    第一接收单元，用于接收所述基站根据所述网络拥塞信息发送的第二周期状态消息发送参数，其中所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度；
    第一发送单元，用于根据所述第二周期状态消息发送参数发送周期状态消息。
  27. 根据权利要求26所述的车载设备，其特征在于，所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度包括以下之一或者组合：
    所述第二周期状态消息发送参数包括的周期状态消息发送功率小于所述第一周期状态消息发送参数包括的周期状态消息发送功率；
    所述第二周期状态消息发送参数包括的周期状态消息发送周期大于所述第一周期状态消息发送参数包括的周期状态消息发送周期；
    所述第二周期状态消息发送参数包括的周期状态消息发送频率小于所述第一周期状态消息发送参数包括的周期状态消息发送频率；
    所述第二周期状态消息发送参数包括的周期状态消息传输速率小于所述 第一周期状态消息发送参数包括的周期状态消息传输速率；
    所述第二周期状态消息发送参数包括的周期状态消息长度小于所述第一周期状态消息发送参数包括的周期状态消息长度。
  28. 根据权利要求26所述的车载设备，其特征在于，
    所述第一确定单元具体用于接收基站通过系统广播发送的配置消息，以确定所述配置信息；或，
    所述第一确定单元具体用于接收基站通过无线资源控制专用信令发送的配置消息，以确定所述配置信息；或，
    所述第一确定单元具体用于通过预配置确定所述配置信息。
  29. 根据权利要求26至28任一项所述的车载设备，其特征在于，所述配置信息还包括第一系统通信参数，所述第一系统通信参数包括系统通信带宽和/或子帧配置数量，所述设备还包括：
    第二接收单元，用于在所述第二周期状态消息的发送参数达到第四阈值时，接收所述基站发送的第二系统通信参数，其中所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程度；
    第一重配单元，用于根据所述第二系统通信参数进行重配。
  30. 根据权利要求29所述的车载设备，其特征在于，所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程度包括以下之一或者组合：
    所述第二系统通信参数指示的系统通信带宽大于所述第一系统通信参数指示的系统通信带宽；
    所述第二系统通信参数指示的子帧配置数量大于所述第一系统通信参数指示的子帧配置数量。
  31. 根据权利要求29所述的车载设备，其特征在于，所述第二周期状态消息的发送参数达到第四阈值包括如下五种情况中至少一种：所述第二周期状态消息的发送功率减小到第一下限值、所述第二周期状态消息的发送周期增大到第一上限值、所述第二周期状态消息的发送频率减小到第二下限值、所述第二周期状态消息的传输速率减小到第三下限值、所述第二周期状态消息的消息大小减小到第四下限值。
  32. 根据权利要求29所述的车载设备，其特征在于，所述配置信息还包 括网络空闲测量事件的上报触发条件，所述设备还包括：
    第三确定单元，用于确定网络空闲指示参数，所述网络空闲指示参数用于指示所述车载设备所处网络环境的空闲程度；
    第二上报单元，用于在所述网络空闲指示参数满足所述网络空闲测量事件的上报触发条件时，向所述基站上报网络空闲信息；
    第四接收单元，用于接收所述基站根据所述网络空闲信息发送的第三系统通信参数，其中所述第三系统通信参数相对于所述第二系统通信参数降低网络空闲程度；
    第二重配单元，用于根据所述第三系统通信参数进行重配。
  33. 根据权利要求32所述的车载设备，其特征在于，所述设备还包括：
    第五接收单元，用于在所述第三系统通信参数达到第五阈值时，接收所述基站发送的第三周期状态消息发送参数，其中所述第三周期状态消息发送参数相对于所述第二周期状态消息发送参数降低网络空闲程度；
    第二发送单元，用于根据所述第三周期状态消息发送参数发送周期状态消息。
  34. 一种基站设备，其特征在于，包括：
    第一发送模块，用于向车载设备发送配置消息，以使所述车载设备确定配置信息；所述配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
    第一接收模块，用于接收网络拥塞信息，所述网络拥塞信息指示所述车载设备确定的网络拥塞参数满足了所述网络拥塞测量事件的上报触发条件，其中，所述网络拥塞参数用于指示所述车载设备所处网络环境的拥塞程度；
    第二发送模块，用于根据所述网络拥塞信息向所述车载设备发送第二周期状态消息发送参数，以使所述车载设备根据所述第二周期状态消息发送参数发送周期状态消息；其中所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度。
  35. 根据权利要求34所述的基站设备，其特征在于，所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度包括以下之一或者组合：
    所述第二周期状态消息发送参数包括的周期状态消息发送功率小于所述第一周期状态消息发送参数包括的周期状态消息发送功率；
    所述第二周期状态消息发送参数包括的周期状态消息发送周期大于所述第一周期状态消息发送参数包括的周期状态消息发送周期；
    所述第二周期状态消息发送参数包括的周期状态消息发送频率小于所述第一周期状态消息发送参数包括的周期状态消息发送频率；
    所述第二周期状态消息发送参数包括的周期状态消息传输速率小于所述第一周期状态消息发送参数包括的周期状态消息传输速率；
    所述第二周期状态消息发送参数包括的周期状态消息长度小于所述第一周期状态消息发送参数包括的周期状态消息长度。
  36. 根据权利要求34所述的基站设备，其特征在于，
    所述第一发送模块具有用于通过系统广播向所述车载设备发送配置消息；或，
    所述第一发送模块具体用于通过无线资源控制专用信令向所述车载设备发送配置消息。
  37. 根据权利要求34至36任一项所述的基站设备，其特征在于，所述配置信息还包括第一系统通信参数，所述第一系统通信参数包括系统通信带宽和/或子帧配置数量，所述设备还包括：
    第三发送模块，用于在所述第二周期状态消息的发送参数达到第四阈值时，向所述车载设备发送第二系统通信参数，以使所述车载设备根据所述第二系统通信参数进行重配；其中所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程度。
  38. 根据权利要求37所述的基站设备，其特征在于，所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程度包括以下之一或者组合：
    所述第二系统通信参数指示的系统通信带宽大于所述第一系统通信参数指示的系统通信带宽；
    所述第二系统通信参数指示的子帧配置数量大于所述第一系统通信参数指示的子帧配置数量。
  39. 根据权利要求37所述的基站设备，其特征在于，所述第二周期状态 消息的发送参数达到第四阈值包括如下五种情况中至少一种：所述第二周期状态消息的发送功率减小到第一下限值、所述第二周期状态消息的发送周期增大到第一上限值、所述第二周期状态消息的发送频率减小到第二下限值、所述第二周期状态消息的传输速率减小到第三下限值、所述第二周期状态消息的消息大小减小到第四下限值。
  40. 根据权利要求37所述的基站设备，其特征在于，所述配置信息还包括网络空闲测量事件的上报触发条件，所述设备还包括：
    第二接收模块，用于接收网络空闲信息，所述网络空闲信息指示所述车载设备确定的网络空闲参数满足了所述网络空闲测量事件的上报触发条件，其中，所述网络空闲参数用于指示所述车载设备所处网络环境的空闲程度；
    第四发送模块，用于根据所述网络空闲信息向所述车载设备发送第三系统通信参数，以使所述车载设备根据所述第三系统通信参数进行重配；其中所述第三系统通信参数相对于所述第二系统通信参数降低网络空闲程度。
  41. 根据权利要求40所述的基站设备，其特征在于，所述设备还包括：
    第五发送模块，用于在所述第三系统通信参数达到第五阈值时，向所述车载设备发送第三周期状态消息发送参数，以使所述车载设备根据所述第三周期状态消息发送参数发送周期状态消息；其中所述第三周期状态消息发送参数相对于所述第二周期状态消息发送参数降低网络空闲程度。
  42. 一种车载设备，包括：接收器、发射器、处理器以及存储器；其特征在于，所述处理器用于执行如下操作：
    确定配置信息，所述配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
    确定网络拥塞指示参数，所述网络拥塞指示参数用于指示所述车载设备所处网络环境的拥塞程度；
    在所述网络拥塞指示参数满足所述网络拥塞测量事件的上报触发条件时，向所述基站上报网络拥塞信息；
    接收所述基站根据所述网络拥塞信息发送的第二周期状态消息发送参数，其中所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度；
    根据所述第二周期状态消息发送参数发送周期状态消息。
  43. 根据权利要求42所述的车载设备，其特征在于，所述配置信息还包括第一系统通信参数，所述第一系统通信参数包括系统通信带宽和/或子帧配置数量，所述处理器还用于执行如下操作：
    在所述第二周期状态消息的发送参数达到第四阈值时，接收所述基站发送的第二系统通信参数，其中所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程度；
    根据所述第二系统通信参数进行重配。
  44. 根据权利要求43所述的车载设备，其特征在于，所述配置信息还包括网络空闲测量事件的上报触发条件，所述处理器还用于执行如下操作：
    确定网络空闲指示参数，所述网络空闲指示参数用于指示所述车载设备所处网络环境的空闲程度；
    在所述网络空闲指示参数满足所述网络空闲测量事件的上报触发条件时，向所述基站上报网络空闲信息；
    接收所述基站根据所述网络空闲信息发送的第三系统通信参数，其中所述第三系统通信参数相对于所述第二系统通信参数降低网络空闲程度；
    根据所述第三系统通信参数进行重配。
  45. 根据权利要求44所述的车载设备，其特征在于，所述处理器还用于执行如下操作：
    在所述第三系统通信参数达到第五阈值时，接收所述基站发送的第三周期状态消息发送参数，其中所述第三周期状态消息发送参数相对于所述第二周期状态消息发送参数降低网络空闲程度；
    根据所述第三周期状态消息发送参数发送周期状态消息。
  46. 一种基站设备，包括：接收器、发射器、处理器以及存储器；其特征在于，所述处理器用于执行如下操作：
    向车载设备发送配置消息，以使所述车载设备确定配置信息；所述配置信息包括第一周期状态消息发送参数和网络拥塞测量事件的上报触发条件；
    接收网络拥塞信息，所述网络拥塞信息指示所述车载设备确定的网络拥塞参数满足了所述网络拥塞测量事件的上报触发条件，其中，所述网络拥塞参数 用于指示所述车载设备所处网络环境的拥塞程度；
    根据所述网络拥塞信息向所述车载设备发送第二周期状态消息发送参数，以使所述车载设备根据所述第二周期状态消息发送参数发送周期状态消息；其中所述第二周期状态消息发送参数相对于所述第一周期状态消息发送参数降低网络拥塞程度。
  47. 根据权利要求46所述的基站设备，其特征在于，所述配置信息还包括第一系统通信参数，所述第一系统通信参数包括系统通信带宽和/或子帧配置数量，所述处理器还用于执行如下操作：
    在所述第二周期状态消息的发送参数达到第四阈值时，向所述车载设备发送第二系统通信参数，以使所述车载设备根据所述第二系统通信参数进行重配；其中所述第二系统通信参数相对于所述第一系统通信参数降低网络拥塞程度。
  48. 根据权利要求47所述的基站设备，其特征在于，所述配置信息还包括网络空闲测量事件的上报触发条件，所述处理器还用于执行如下操作：
    接收网络空闲信息，所述网络空闲信息指示所述车载设备确定的网络空闲参数满足了所述网络空闲测量事件的上报触发条件，其中，所述网络空闲参数用于指示所述车载设备所处网络环境的空闲程度；
    根据所述网络空闲信息向所述车载设备发送第三系统通信参数，以使所述车载设备根据所述第三系统通信参数进行重配；其中所述第三系统通信参数相对于所述第二系统通信参数降低网络空闲程度。
  49. 根据权利要求48所述的基站设备，其特征在于，所述处理器还用于执行如下操作：
    在所述第三系统通信参数达到第五阈值时，向所述车载设备发送第三周期状态消息发送参数，以使所述车载设备根据所述第三周期状态消息发送参数发送周期状态消息；其中所述第三周期状态消息发送参数相对于所述第二周期状态消息发送参数降低网络空闲程度。
PCT/CN2015/073654 2015-03-04 2015-03-04 一种通信方法及相关设备 WO2016138649A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/CN2015/073654 WO2016138649A1 (zh) 2015-03-04 2015-03-04 一种通信方法及相关设备
EP15883706.2A EP3253085A4 (en) 2015-03-04 2015-03-04 Communication method and related device
CN201580049772.7A CN107079265A (zh) 2015-03-04 2015-03-04 一种通信方法及相关设备
US15/694,526 US20170367005A1 (en) 2015-03-04 2017-09-01 Communication method and related device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/073654 WO2016138649A1 (zh) 2015-03-04 2015-03-04 一种通信方法及相关设备

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/694,526 Continuation US20170367005A1 (en) 2015-03-04 2017-09-01 Communication method and related device

Publications (1)

Publication Number Publication Date
WO2016138649A1 true WO2016138649A1 (zh) 2016-09-09

Family

ID=56849160

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/073654 WO2016138649A1 (zh) 2015-03-04 2015-03-04 一种通信方法及相关设备

Country Status (4)

Country Link
US (1) US20170367005A1 (zh)
EP (1) EP3253085A4 (zh)
CN (1) CN107079265A (zh)
WO (1) WO2016138649A1 (zh)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015219785A1 (de) * 2015-10-13 2017-04-13 Volkswagen Aktiengesellschaft Verfahren und Vorrichtung zur Konfiguration einer Datenübertragung über einen Übertragungskanal eines drahtlosen Kommunikationssystems mit dezentraler Überlastregelung
CN105611499B (zh) * 2016-01-15 2019-04-19 宇龙计算机通信科技(深圳)有限公司 一种v2v传输机制中控制面信令处理方法及系统
WO2017160070A1 (ko) * 2016-03-17 2017-09-21 엘지전자 주식회사 무선 통신 시스템에서 사이드링크 자원의 점유 정도를 보고하는 방법 및 장치
EP3497895B1 (en) * 2016-08-11 2022-02-02 Panasonic Intellectual Property Corporation of America Wireless communication method and apparatus
EP3399780B1 (en) * 2017-05-02 2022-03-16 Nxp B.V. Adjusting an intelligent transportation system (its) broadcast transmission parameter
FI3661237T3 (fi) 2017-09-15 2023-01-13 Menetelmä kantoaallon valitsemiseksi ja viestintälaite
EP3725126B1 (en) * 2018-01-15 2023-11-29 Huawei Technologies Co., Ltd. Devices and methods for managing communication in a v2x communication network
US11343709B2 (en) * 2018-02-15 2022-05-24 Apple Inc. Hidden WLAN detection for better ecosystem design in 5G
GB2583726B (en) * 2019-05-03 2022-03-02 Samsung Electronics Co Ltd Network and control thereof
WO2023051914A1 (en) * 2021-09-30 2023-04-06 Huawei Technologies Co., Ltd. Method and device for controlling interference among autonomous wireless communication links
CN114040442B (zh) * 2021-11-26 2023-11-14 珠海格力电器股份有限公司 一种无线网关传输系统及其信息过滤方法、无线网关

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101977351A (zh) * 2010-10-14 2011-02-16 北京邮电大学 一种调整车辆行驶状态信息发送速率的方法及系统
CN103517326A (zh) * 2012-06-18 2014-01-15 现代摩比斯株式会社 车辆间通信中的拥堵控制装置及方法
US20140119210A1 (en) * 2012-10-30 2014-05-01 Toyota Jidosha Kabushiki Kaisha Weighted-Fairness in Message Rate Based Congestion Control for Vehicular Systems
CN104254053A (zh) * 2013-06-25 2014-12-31 现代自动车株式会社 用于车辆间通信的装置和方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2471287A (en) * 2009-06-23 2010-12-29 Nec Europe Ltd Communication message congestion control for the nodes of an intelligent transport system.
US10044589B2 (en) * 2013-01-29 2018-08-07 Nec Corporation Adaptive rate control for cellular-based vehicular networks

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101977351A (zh) * 2010-10-14 2011-02-16 北京邮电大学 一种调整车辆行驶状态信息发送速率的方法及系统
CN103517326A (zh) * 2012-06-18 2014-01-15 现代摩比斯株式会社 车辆间通信中的拥堵控制装置及方法
US20140119210A1 (en) * 2012-10-30 2014-05-01 Toyota Jidosha Kabushiki Kaisha Weighted-Fairness in Message Rate Based Congestion Control for Vehicular Systems
CN104254053A (zh) * 2013-06-25 2014-12-31 现代自动车株式会社 用于车辆间通信的装置和方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3253085A4 *

Also Published As

Publication number Publication date
CN107079265A (zh) 2017-08-18
EP3253085A4 (en) 2017-12-27
EP3253085A1 (en) 2017-12-06
US20170367005A1 (en) 2017-12-21

Similar Documents

Publication Publication Date Title
WO2016138649A1 (zh) 一种通信方法及相关设备
KR102667781B1 (ko) 데이터 전송 방법 및 장치, 트래픽 전환 방법 및 장치
US11477796B2 (en) Radio resource management for network assisted new radio V2X sidelink resource allocation
US11758439B2 (en) Methods for resource reservation to satisfy new radio (NR) vehicular communications (V2X) quality of service (QOS) requirements
US11646822B2 (en) Groupcast transmission with feedback for intra-platooning and inter-platooning communications
US10728827B2 (en) Service message sending method, terminal device, and network device
WO2017133501A1 (zh) 车联网业务拥塞控制的方法及装置
EP3343995B1 (en) Method for transreceiving v2x signal of terminal in wireless communication system, and terminal using the method
EP2858452B1 (en) Method for reporting user equipment auxiliary information, user equipment and base station
WO2017133644A1 (zh) 路径选择方法及装置、设备及计算机存储介质
WO2020001470A1 (zh) 通信方法、装置和存储介质
JP2018528736A (ja) 無線通信システムにおける端末のｖ２ｘ動作のためのリソース選択方法及び前記方法を利用する端末
WO2017076056A1 (zh) 业务转发方法及装置
WO2017091980A1 (zh) 无线资源调度的方法、装置和系统
WO2017177699A1 (zh) 通信间隔的配置方法及装置、存储介质、设备
WO2020001317A1 (zh) V2x通信方法、装置及系统
US11825501B2 (en) Radio resource management for network assisted new radio V2X sidelink resource allocation
US11700656B2 (en) Bidirectional sidelink radio link control bearers
WO2019113774A1 (zh) 一种数据传输的方法和装置
CN111328140A (zh) 侧链通信方法和装置
JP2018513607A (ja) 共存および同時性のためのクロックドリフト管理
CN114071400A (zh) 一种侧行链路通信方法及装置
JP2024511225A (ja) Ｎｒ ｓｉｄｅｌｉｎｋでの省電力ユーザのためのリソース選択
WO2017132994A1 (zh) 信息发送、接收、上行同步、数据发送指示方法及设备
AU2021325237B2 (en) Information Control Method and Apparatus and Base Station

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15883706

Country of ref document: EP

Kind code of ref document: A1

REEP Request for entry into the european phase

Ref document number: 2015883706

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE