WO2017133501A1 - Procédé et dispositif de gestion des encombrements d'un service d'internet des véhicules - Google Patents

Procédé et dispositif de gestion des encombrements d'un service d'internet des véhicules Download PDF

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Publication number
WO2017133501A1
WO2017133501A1 PCT/CN2017/071962 CN2017071962W WO2017133501A1 WO 2017133501 A1 WO2017133501 A1 WO 2017133501A1 CN 2017071962 W CN2017071962 W CN 2017071962W WO 2017133501 A1 WO2017133501 A1 WO 2017133501A1
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Prior art keywords
network node
congestion
information
interface
service
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PCT/CN2017/071962
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English (en)
Chinese (zh)
Inventor
汪梦珍
陈琳
陈玉芹
马子江
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中兴通讯股份有限公司
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Publication of WO2017133501A1 publication Critical patent/WO2017133501A1/fr

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    • 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
    • H04W28/0205—Traffic management, e.g. flow control or congestion control at the air interface
    • 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
    • H04W28/0226—Traffic management, e.g. flow control or congestion control based on location or mobility
    • 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
    • H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
    • H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay

Definitions

  • the present invention relates to the field of vehicle networking, and in particular to a method and apparatus for congestion control of a networked network service.
  • V2X Vehicle-to-Everything Communications
  • V2X Vehicle-to-Everything Communications
  • V2V Vehicle-to-Everything Communications
  • V2P Vehicle-to-Pedestrian Communications
  • V2I Vehicle-to-Infrastructure Communications
  • V2N Vehicle-to-Network Communications
  • the V2X service can be divided into a V2V service, a V2I service, a V2N service, and a V2P service.
  • the V2P service refers to a service that uses V2P application communication between UEs.
  • the V2N service refers to a service in which a UE and a serving entity communicate with each other through an LTE network entity using a V2N application.
  • the V2I service refers to a service in which a UE and a Road Side Unit (RSU) use a V2I application to interact.
  • RSU Road Side Unit
  • the RSU is an entity that supports V2I services, and can send V2I services to UEs that use V2I applications, or can receive V2I services from UEs that use V2I services.
  • the RSU can be implemented by a base station (eNB) or a stationary UE. If the RSU is implemented by a base station, it is called an eNB type RSU. If the RSU is implemented by the UE, it is called a UE type RSU.
  • a V2V service refers to a service that uses V2V application communication between UEs.
  • the V2V includes the V2V-related application information that is directly exchanged between the UEs, or the V2V-related application information is exchanged between the UEs through the infrastructure (for example, the RSU, the application server, and the like) that supports the V2X service.
  • the infrastructure for example, the RSU, the application server, and the like
  • FIG. 1 is a schematic diagram of a V2X service scenario in the related art, as shown in FIG. 1: scenario 1, which supports V2V communication based only on the PC5 interface.
  • the UE sends a V2X message to multiple UEs in the local area through the PC5 interface.
  • scenario 2 the scenario supports V2V communication based only on the Uu port.
  • the UE uplinks the V2X message to the Evolved UMTS Terrestrial Radio Access Network (E-UTRAN), and the E-UTRAN downlinks the V2X message to multiple UEs in the local area; scenario 3a and 3b, this scenario supports V2V communication using Uu and PC5 interfaces.
  • E-UTRAN Evolved UMTS Terrestrial Radio Access Network
  • Scenario 3a The UE sends a V2X message to other UEs through the PC5 interface. After receiving the V2X message from the PC5 interface, the UE type RSU transmits the V2X message to the E-UTRAN, and the E-UTRAN receives the V2X message from the UE type RSU. Downstream broadcast to multiple UEs in the local area.
  • Scenario 3b The UE uplinks the V2X message to the E-UTRAN. After receiving the V2X message from the Uu interface, the E-UTRAN transmits the V2X message to one or more UE type RSUs, and the UE type RSU will receive from the E-UTRAN.
  • the V2X message is sent to multiple UEs in the local area through the PC5 interface.
  • E-UTRAN can use the existing Multimedia Broadcast Multicast Service (MBMS) technology or single-cell point-to-multipoint (Single-cell point-to multiple Point, abbreviated as SC-PTM) technology to downlink V2X messages to multiple UEs in a local area.
  • MBMS Multimedia Broadcast Multicast Service
  • SC-PTM single-cell point-to multiple Point
  • the embodiment of the invention provides a method and a device for congestion control of a vehicle network service, so as to at least solve the related art, when the vehicle travels slowly, the vehicle density is large, and the frequency of the V2X message sent by the vehicle is high, the Uu port or the PC5 is caused.
  • the problem of congestion on the interface V2X service when the vehicle travels slowly, the vehicle density is large, and the frequency of the V2X message sent by the vehicle is high, the Uu port or the PC5 is caused.
  • a method for congestion control of a networked network service comprising: receiving, by a second network node, congestion state information and/or congestion control operation information sent by a first network node; The node controls the in-vehicle service according to the congestion status information and/or congestion control operation information.
  • the first network node is a base station or a base station type roadside unit
  • the second network node includes at least one of the following: a user equipment UE, a user equipment UE type road An edge unit, a neighboring base station of the first network node, a neighboring base station type RSU of the first network node, a multi-cell/multicast coordination entity MCE, a broadcast multicast service center BM-SC, and a car network V2X application server .
  • the congestion status information includes at least one of the following: a Uu interface uplink congestion status information, and a Uu interface downlink congestion status information.
  • the Uu interface uplink congestion status information includes at least one of the following: used to indicate congestion.
  • Information for indicating the degree of congestion; the Uu interface downlink congestion state information includes at least one of: information for indicating congestion, information for indicating congestion degree, congestion service type information, and each broadcast traffic channel. The congestion state information, the congestion state information of each cell under the control of the first network node.
  • the congestion control operation information includes at least one of: information for indicating a Uu interface congestion control operation, information for indicating a frequency of reducing a V2X periodic message transmission, and information for indicating a frequency level of transmitting a V2X message.
  • the second network node when the second network node is a UE or a UE type RSU, the second network node controls the car network service according to the congestion control operation information, where the UE or the UE type RSU reduces the V2X cycle.
  • the configuration information is sent by the V2X service; or, when the UE or the UE type RSU upper layer initiates the radio resource control RRC connection establishment by transmitting the V2X application data, whether the UE or UE type RSU access layer detection is limited Determining a configuration parameter of applying a congestion control parameter; the UE or the UE type RSU terminates establishment of an RRC connection when the access layer is restricted by the configuration information of the specified application congestion control parameter; or the UE or the UE The type RSU performs a packet loss operation of the V2X data according to the configured packet data convergence protocol PDCP packet loss timer of the V2X bearer.
  • the manner in which the second network node controls the car network service according to the congestion state information includes at least one of the following: the UE or the UE.
  • the type RSU notifies the V2X application layer of the congestion status information, wherein the V2X application layer determines whether to reduce a period for generating/transmitting a V2X message according to the congestion status information; and the UE or UE type RSU according to the congestion status information
  • the high priority V2X data is sent on the resource of the periodic message or the normal cellular message; the UE or the UE type RSU reports the expected packet data convergence protocol PDCP packet loss timer configuration to the base station according to the congestion status information.
  • the second network node controls the car network service according to the congestion state information, where the MCE is to pass the multicast broadcast single frequency network MBSFN.
  • Mode Broadcasting Temporary Mobile Group Identity TMGI service is translated into a single-cell point-to-multipoint SC-PTM mode broadcast; wherein the MCE sends SC-PTM information to the SSMS through an MBMS Session Start Request message or an MBMS Session Update Request message The first network node.
  • the second network node when the second network node is the BM-SC or V2X application server, the second network node controls the networked service according to the congestion status information, including: the BM-SC or the V2X
  • the application server merges or discards V2X packets according to the V2X service type, priority, and sending period.
  • a method for congestion control of a car network service comprising: a first network node transmitting congestion state information and/or congestion control operation information to a second network node.
  • the first network node is a base station or a base station type roadside unit RSU
  • the second network node includes at least one of the following: a user equipment UE, a user equipment UE type Roadside unit, neighboring base station of the first network node, neighboring base station type RSU of the first network node, multi-cell/multicast coordination entity MCE, broadcast multicast service center BM-SC, vehicle network V2X application server.
  • the congestion status information includes at least one of the following: a Uu interface uplink congestion status information, and a Uu interface downlink congestion status information.
  • the Uu interface uplink congestion status information includes at least one of the following: used to indicate congestion.
  • Information for indicating the degree of congestion; the Uu interface downlink congestion state information includes at least one of: information for indicating congestion, information for indicating congestion degree, congestion service type information, and each broadcast traffic channel. The congestion state information, the congestion state information of each cell under the control of the first network node.
  • the congestion control operation information includes at least one of: information for indicating a Uu interface congestion control operation, information for indicating a frequency of reducing a V2X periodic message transmission, and information for indicating a frequency level of transmitting a V2X message.
  • the base station or the base station type RSU when the second network node is a UE or a UE type RSU, the base station or the base station type RSU sends the congestion state information and/or the congestion control operation by using a system broadcast message or an RRC connection reconfiguration message.
  • Information when the second network node is an MCE, the base station or base station type RSU sends the congestion status information by using an MBMS load notification message; and the second network node is a neighboring base station of the first network node Or the neighboring base station type RSU, the base station or the base station type RSU sends the congestion status information by using at least one of the following messages: an X2 interface setup request The message, the X2 interface setup response message, the load information message, the base station configuration update message, the base station configuration update acknowledgement message, the resource status response message, and the resource status update message.
  • the method further includes: the base station or the base station type RSU or the MCE passing at least one of the following The mode identifies the V2X MBMS bearer: the MBMS bearer of the specified TMGI identifier assigned to the V2X service; the newly added MBMS bearer corresponding to the delay sensitive type QCI value of the V2X service; and the delay sensitive service carried in the MBMS session start request message Indicates the identified MBMS bearer.
  • the method further includes: the first network node sending a congestion status update to the second network node information.
  • the manner of triggering the first network node to send the congestion status information or the congestion status update information includes at least one of: periodically triggering transmission, and sending when a congestion status changes.
  • a method for congestion control of a car network service comprising: a second network node transmitting congestion state information to a first network node; and the second network node receiving the first network node sending The congestion control operation information, and controls the vehicle network service according to the congestion control operation information.
  • the first network node is a base station or a base station type RSU
  • the second network node is a UE or a UE type RSU.
  • the congestion status information includes at least one of the following: information indicating that the PC5 interface is congested, and information indicating a degree of congestion of the PC5 interface, where the congestion status information is sent by using sideband user information or an RRC message.
  • the congestion control operation information includes at least one of the following: PC5 interface communication resource configuration information, information for indicating a periodic V2X information transmission frequency of the PC5 interface, and a transmission frequency for indicating periodic V2X information of the PC5 interface.
  • the information includes: a mode 1 resource and a mode 2 resource, and the mode 2 resource pool is configured with one or more priorities, and usage rules of the mode 1 and the mode 2 resource; the usage rule of the resource is: at V2X
  • the mode 1 resource is used to transmit.
  • the contention mode 2 resource is used; or the V2X data preferentially uses the mode 1 resource. If there are multiple
  • the method further includes: detecting, by the second network node, that the PC5 interface is congested by: at least one of: the second network The node detects that the resource pool power strength and/or the signal strength is lower than the first preset threshold; the second network node receives the sidechain control information, but the data resolution is unsuccessful; and the second network node detects the resource pool signal strength The value is higher than the second preset threshold, but the data receiving rate is less than the third preset threshold.
  • the method further includes: the second network node adopting at least one of: Moderate adjustment Solving the congestion of the PC5 interface: the second network node notifies the V2X application layer that the interface of the PC5 is congested, wherein the V2X application layer determines whether to reduce the period of generating/transmitting the V2X message according to the congestion state information; the second network node
  • the high priority V2X data is sent on the V2X periodic message or the resource of the normal cellular message; the V2X application layer or the PDCP layer or the RLC layer of the second network node performs the V2X according to the V2X message type, the service/application type, and the priority. Packet compression, merging, and discarding.
  • the method further includes: the second network node sending the congestion state update information to the first network node.
  • the manner of triggering the second network node to send the congestion status information or the congestion status update information includes at least one of: periodically triggering transmission, and transmitting when a congestion status changes.
  • a method for congestion control of a networked network service includes: receiving, by a first network node, congestion state information sent by a second network node; the first network node according to congestion state information The second network node sends congestion control operation information, where the congestion control operation information is a basis for the second network node to control the networked service.
  • the first network node is a base station or a base station type RSU
  • the second network node is a UE or a UE type RSU.
  • the congestion status information includes at least one of the following: information indicating that the PC5 interface is congested, and information indicating a degree of congestion of the PC5 interface.
  • the congestion control operation information includes at least one of the following: PC5 interface communication resource configuration information, information for indicating a periodic V2X information transmission frequency of the PC5 interface, and a transmission frequency for indicating periodic V2X information of the PC5 interface.
  • the information includes: a mode 1 resource and a mode 2 resource, and the mode 2 resource pool is configured with one or more priorities, and usage rules of the mode 1 and the mode 2 resource; the usage rule of the resource is: at V2X When the data priority is higher than or equal to the pre-configured priority threshold, the mode 1 resource is used to transmit.
  • the contention mode 2 resource is used; or the V2X data preferentially uses the mode 1 resource. If there are multiple priority data at the same time, the high priority first uses the mode 1 resource; the congestion control operation The information is sent through a system broadcast message or an RRC connection reconfiguration message.
  • a device for congestion control of a networked network service which is applied to a second network node side, and includes: a first receiving module, configured to receive congestion state information sent by the first network node, and And/or congestion control operation information; the control module is configured to: the node controls the vehicle network service according to the congestion status information and/or the congestion control operation information.
  • the first network node is a base station or a base station type roadside unit
  • the second network node includes at least one of the following: a user equipment UE, a user equipment UE type road An edge unit, a neighboring base station of the first network node, a neighboring base station type RSU of the first network node, a multi-cell/multicast coordination entity MCE, a wide Broadcast multicast service center BM-SC, car network V2X application server.
  • a device for congestion control of a networked network service which is applied to a first network node side, and includes: a first sending module, configured to send congestion state information to the second network node and/or Or congestion control operation information.
  • the first network node is a base station or a base station type roadside unit RSU
  • the second network node includes at least one of the following: a user equipment UE, a user equipment UE type Roadside unit, neighboring base station of the first network node, neighboring base station type RSU of the first network node, multi-cell/multicast coordination entity MCE, broadcast multicast service center BM-SC, vehicle network V2X application server.
  • a device for congestion control of a networked network service which is applied to a second network node side, and includes: a second sending module, configured to send congestion state information to the first network node;
  • the receiving module is configured to receive the congestion control operation information sent by the first network node, where the congestion control operation information is a basis for the second network node to control the networked service.
  • the first network node is a base station or a base station type RSU
  • the second network node is a UE or a UE type RSU.
  • a device for congestion control of a networked network which is applied to a first network node side, and includes: a third receiving module, configured to receive congestion state information sent by the second network node; The third sending module is configured to send congestion control operation information to the second network node according to the congestion state information, where the congestion control operation information is a basis for the second network node to control the networked service.
  • the first network node is a base station or a base station type RSU
  • the second network node is a UE or a UE type RSU.
  • a storage medium is also provided.
  • the storage medium is arranged to store program code for performing the following steps:
  • a storage medium is also provided.
  • the storage medium is arranged to store program code for performing the following steps:
  • Congestion status information and/or congestion control operation information is sent to the second network node.
  • the second network node receives the congestion state information and/or the congestion control operation information sent by the first network node, and the second network node performs the networked service according to the congestion state information and/or the congestion control operation information.
  • the network node can control the vehicle network service through the congestion state information and/or the congestion control operation information, thereby alleviating the pressure of the air interface service, thereby solving the slow speed of the vehicle and the vehicle density in the related technology.
  • the frequency of the V2X message sent by the vehicle is high, the V2X service congestion of the air interface or the PC5 interface is caused.
  • FIG. 1 is a schematic diagram of a V2X service scenario in the related art
  • FIG. 2 is a flow chart 1 of a method for congestion control of a vehicle network service according to an embodiment of the present invention
  • FIG. 3 is a second flowchart of a method for congestion control of a vehicle network service according to an embodiment of the present invention
  • FIG. 4 is a third flowchart of a method for congestion control of a vehicle network service according to an embodiment of the present invention.
  • FIG. 5 is a flowchart 4 of a method for congestion control of a vehicle network service according to an embodiment of the present invention
  • FIG. 6 is a block diagram of a device structure of a vehicle network service congestion control according to an embodiment of the present invention.
  • FIG. 7 is a second structural block diagram of an apparatus for congestion control of a vehicle network service according to an embodiment of the present invention.
  • FIG. 8 is a third structural block diagram of an apparatus for congestion control of a vehicle network service according to an embodiment of the present invention.
  • FIG. 9 is a block diagram 4 of an apparatus structure for congestion control of a vehicle network service according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram 1 of a vehicle network congestion control according to an alternative embodiment of the present invention.
  • FIG. 11 is a second flowchart of vehicle network congestion control according to an alternative embodiment of the present invention.
  • FIG. 12 is a flowchart of a method for relieving congestion of a V2X application server in a congestion state according to an alternative embodiment of the present invention
  • FIG. 13 is a flowchart of a method for UE to alleviate congestion in a congestion state according to an alternative embodiment of the present invention
  • 15 is a flowchart of a method for reducing a broadcast area using SC-PTM in a congestion state according to an alternative embodiment of the present invention
  • 16 is a flowchart of a method for an eNB/MCE to identify a V2X bearer according to an alternative embodiment of the present invention
  • FIG. 17 is a flowchart 1 of a PC5 interface congestion control method according to an alternative embodiment of the present invention.
  • FIG. 18 is a second flowchart of a PC5 interface congestion control method according to an alternative embodiment of the present invention.
  • FIG. 2 is a flowchart 1 of a method for congestion control of the vehicle network service according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:
  • Step S202 The second network node receives the congestion state information and/or the congestion control operation information sent by the first network node.
  • Step S204 The second network node controls the networked service according to the congestion state information and/or the congestion control operation information.
  • the second network node receives the congestion state information and/or the congestion control operation information sent by the first network node, and the second network node according to the congestion state information and/or the congestion control The operation information controls the vehicle network service. It can be seen that the network node can control the vehicle network service through the congestion state information and/or the congestion control operation information, thereby alleviating the pressure of the air interface service, thereby solving the slow driving speed of the vehicle in the related technology.
  • the V2X service congestion of the air interface or the PC5 interface is caused.
  • the air interface involved in this embodiment may be a Uu port, and when the air interface is a Uu port, the first network node involved in this embodiment is a base station or a base station type.
  • the roadside unit, the second network node includes at least one of the following: a user equipment UE, a user equipment UE type roadside unit, a neighboring base station of the first network node, a neighboring base station type RSU of the first network node, and a multi-cell/multiple Broadcast coordination entity MCE, Broadcast Multicast Service Center (BM-SC), and Vehicle Network V2X application server.
  • MCE Broadcast Multicast Service Center
  • BM-SC Broadcast Multicast Service Center
  • the congestion state information involved in the embodiment includes at least one of the following: the Uu interface uplink congestion state information and the Uu interface downlink congestion state information; wherein, the Uu interface uplink congestion state information includes at least one of the following: Information indicating congestion, information indicating degree of congestion; Uu port downlink congestion status information includes at least one of: information for indicating congestion, information for indicating congestion degree, congestion service type information, and each broadcast service channel The congestion state information, the congestion state information of each cell under the control of the first network node.
  • the congestion control operation information may include at least one of: information for indicating a Uu port congestion control operation, information for indicating a frequency of reducing a V2X periodic message transmission, information for indicating a frequency level of transmitting a V2X message, and V2X service.
  • the step S204 involved in the embodiment is based on the congestion.
  • the way to control the operational information to control the Internet of Vehicles business can be achieved by:
  • the UE or the UE type RSU reduces the transmission frequency of the V2X periodic message, or reduces the transmission frequency level of the V2X message, or the configuration information of the semi-static resource period according to the V2X service, or sends the V2X periodic cancellation according to the start/suspend.
  • the V2X service is sent by the indication of the information, the effective time, the priority, and the configuration information of the service type;
  • Manner 2 When the UE or the UE type RSU upper layer initiates the radio resource control RRC connection establishment by transmitting the V2X application data, the UE or the UE type RSU access layer detects whether the configuration parameter is restricted by the specified application congestion control parameter; When the layer is restricted by the configuration information specifying the application congestion control parameter, the UE or the UE type RSU terminates the establishment of the RRC connection;
  • Manner 3 The UE or the UE type RSU performs the packet loss operation of the V2X data according to the configured packet data convergence protocol PDCP packet loss timer of the V2X bearer.
  • the step S204 involved in the embodiment controls the second network node according to the congestion state information.
  • the way includes at least one of the following:
  • Manner 1 The UE or the UE type RSU notifies the V2X application layer of the congestion state information, wherein the V2X application layer determines whether to reduce the period of generating/transmitting the V2X message according to the congestion state information;
  • Manner 2 The UE or the UE type RSU preferentially sends the high priority V2X data on the periodic message or the resource of the normal cellular message according to the congestion state information;
  • Manner 3 The UE or the UE type RSU reports the expected packet data convergence protocol PDCP packet loss timer configuration to the base station according to the congestion state information.
  • the step S204 involved in the embodiment may be performed by the second network node according to the congestion state information.
  • the MCE converts the temporary mobile group identity TMGI service broadcasted by the multicast broadcast single frequency network MBSFN mode into a single-cell point-to-multipoint SC-PTM mode broadcast; wherein the MCE passes the MBMS session start request message or the MBMS session update request message
  • the SC-PTM information is sent to the first network node.
  • the manner in which the second network node controls the car network service according to the congestion state information includes: BM-SC Or the V2X application server merges or discards the V2X data packets according to the V2X service type, priority, and sending period.
  • FIG. 3 is a second flowchart of a method for congestion control of a vehicle network service according to an embodiment of the present invention. As shown in FIG. 3, the steps of the method include:
  • Step S302 The first network node detects the air interface.
  • Step S304 When detecting air interface congestion, the first network node sends congestion state information and/or congestion control operation information to the second network node.
  • first network node in FIG. 3 corresponds to the second network node in FIG. 2;
  • the first network node is a base station or a base station type roadside unit RSU
  • the second network node comprises at least one of: user equipment UE, user equipment UE type roadside unit, neighboring base station of the first network node, neighboring base station type RSU of the first network node, multi-cell/multicast coordination entity MCE , Broadcast Multicast Service Center BM-SC, Vehicle Network V2X Application Server.
  • the congestion state information involved in the embodiment includes at least one of the following: the Uu interface uplink congestion state information includes at least one of the following: information for indicating congestion, information for indicating congestion degree, and Uu interface downlink.
  • the congestion status information includes at least one of: information for indicating congestion, information for indicating a degree of congestion, congestion service type information, congestion status information of each broadcast service channel, and congestion of each cell under control of the first network node. status information.
  • the congestion control operation information includes at least one of: information for indicating a Uu port congestion control operation, information for indicating a frequency of reducing a V2X periodic message transmission, information for indicating a frequency level of transmitting a V2X message, and a half of a V2X service.
  • the base station or the base station type RSU when the second network node is a UE or a UE type RSU, the base station or the base station type RSU sends congestion state information and/or congestion control by using a system broadcast message or an RRC connection reconfiguration message. Operation information; when the second network node is an MCE, the base station or base station type RSU sends congestion status information through the MBMS load notification message.
  • the base station or base station type RSU passes at least One of the messages sends the congestion status information: an X2 interface setup request message, an X2 interface setup response message, a load information message, a base station configuration update message, a base station configuration update acknowledgement message, a resource status response message, and a resource status update message.
  • the method before the first network node sends the congestion state information and/or the congestion control operation information to the second network node, the method further includes: the base station or the base station type RSU or MCE passes the following At least one of the methods for identifying the V2X MBMS bearer: the MBMS bearer of the specified TMGI identifier assigned to the V2X service; the newly added MBMS bearer corresponding to the delay sensitive type QCI value for the V2X service; carried by the MBMS session start request message The delay sensitive service indicates the identity of the MBMS bearer.
  • the method further includes: the first network node to the second network node Send congestion status update information.
  • the manner of triggering the base station to send the congestion state information or the congestion state update information includes at least one of: periodically triggering the sending, and sending when the congestion state changes.
  • FIG. 4 is a third flowchart of a method for congestion control of a vehicle network service according to an embodiment of the present invention. As shown in FIG. 4, the steps of the method include:
  • Step S402 The second network node detects the air interface.
  • Step S404 congestion state information sent by the second network node to the first network node
  • Step S406 The second network node receives the congestion control operation information sent by the first network node, and controls the vehicle network service according to the congestion control operation information.
  • FIG. 4 the embodiment related to FIG. 4 is similar to FIG. 2 and FIG. 3, and in the embodiment of FIG. 2 and FIG. 3, the first network node is detected on the air interface, and FIG. 4 The middle is the second network node, but the way to solve the problem is similar, all of which control the car network service through the congestion state information and/or the congestion control operation information.
  • the first network node is a base station or a base station type RSU
  • the second network node is a UE or a UE type RSU.
  • the congestion state information involved in the embodiment includes at least one of the following: information indicating that the PC5 interface is congested, and information indicating the degree of congestion of the PC5 interface, where the congestion state information is sent by using sideband user information or an RRC message.
  • the information about the congestion control operation involved in the embodiment includes at least one of the following: the PC5 interface communication resource configuration information, the information for indicating the frequency of the periodic V2X information transmission of the PC5 interface, and the periodicity of the PC5 interface.
  • the configuration information of the PC5 interface communication resource includes: a mode 1 resource and a mode 2 resource, and the mode 2 resource pool is configured with one or more priorities, and usage rules of the mode 1 and mode 2 resources; the usage rule of the resource is: in the V2X data.
  • the mode 1 resource When the priority is higher than or equal to the pre-configured priority threshold, the mode 1 resource is used to transmit.
  • the contention mode 2 resource When the V2X data priority is less than the pre-configured priority threshold, the contention mode 2 resource is used; or the V2X data is used first. If there are multiple priority data at the same time, the high priority takes precedence over the mode1 resource.
  • the mode 1 resource is a dedicated resource allocated to the UE, and the base station allocates a suitable V2X/ProSe resource to the UE according to the request of the UE; the mode 2 resource is a resource acquired according to the contention mode, and is usually pre-allocated by the base station or the system. Or a plurality of V2X/ProSe (proximity service) resource pools, the UE participating in the V2X/ProSe discovery/communication listens to the resource pool, and acquires the transmission resource in a competitive manner.
  • V2X/ProSe proximity service
  • the method in this embodiment further includes: the second network node detecting the PC5 interface by using at least one of the following manners; Congestion: the second network node detects that the resource pool power strength and/or signal strength is lower than the first preset threshold; the second network node receives the sidechain control information, but the data resolution is unsuccessful; the second network node detects the resource pool signal The intensity value is higher than the second preset threshold, but the data receiving rate is less than the third preset threshold.
  • the method in this embodiment further includes: the second network node relies on at least one of the following autonomous adjustment manners to alleviate the PC5. Interface congestion: The second network node notifies the V2X application layer that the PC5 interface is congested. The V2X application layer determines whether to reduce the period of generating/transmitting the V2X message according to the congestion state information. The second network node preferentially forwards the V2X periodic message or the ordinary cellular message.
  • the high-priority V2X data is sent on the resource; the V2X application layer or the PDCP layer or the RLC layer of the second network node performs V2X packet compression, merging, and discarding processing according to the V2X message type, service/application type, and priority.
  • the method in this embodiment further includes: the second network node sending the congestion state update information to the first network node.
  • the manner of triggering the second network node to send the congestion state information or the congestion state update information includes at least one of the following: periodically triggering the sending, and changing the congestion state. When sent.
  • FIG. 5 is a fourth flowchart of a method for congestion control of a vehicle network service according to an embodiment of the present invention. As shown in FIG. 5, the steps of the method include:
  • Step S502 When the second network node detects air interface congestion, the first network node receives the congestion state information sent by the second network node.
  • Step S504 The first network node sends congestion control operation information to the second network node according to the congestion state information, where the congestion control operation information is a basis for the second network node to control the vehicle network service.
  • first network node in FIG. 5 corresponds to the second network node in FIG. 4.
  • the first network node is a base station or a base station type RSU
  • the second network node is a UE or a UE type RSU.
  • the UE detects the congestion of the PC5 interface by: the UE detects the resource strength and signal strength of the resource pool; or the UE receives the sidechain control information, but the data resolution is unsuccessful; or the UE detects the resource.
  • the pool signal is good, but the data reception rate is not high.
  • the congestion status information related to the embodiment includes at least one of the following: information indicating that the PC5 interface is congested, and information indicating the degree of congestion of the PC5 interface.
  • the congestion control operation information includes at least one of the following: PC5 interface communication resource configuration information, information for indicating a periodic V2X information transmission frequency of the PC5 interface, and a transmission frequency level for indicating periodic V2X information of the PC5 interface.
  • the information the start/suspend configuration of the V2X periodic message of the PC5 interface, the effective time, the priority, the configuration information of the service type, and the configuration information of the semi-static resource period of the V2X service of the PC5 interface;
  • the configuration information of the PC5 interface communication resource includes :mode 1 resource and mode 2 resource, and the mode 2 resource pool configuration has one or more priorities, and the usage rules of the mode 1 and mode 2 resources; the usage rule of the resource is: the priority of the data in the V2X is higher than or equal to the pre- When the priority threshold is configured, the mode 1 resource is used to transmit.
  • the contention mode 2 resource is used.
  • the V2X data preferentially uses the mode1 resource. If multiple priority data exist at the same time. , the high priority takes precedence over the mode1 resource.
  • the congestion control operation information is sent by using a system broadcast message or an RRC connection reconfiguration message.
  • the UE may mitigate the congestion of the PC5 interface by using the following autonomous adjustment manner: the UE notifies the UE
  • the V2X application layer PC5 interface is congested, and the V2X application layer determines whether to reduce the V2X message generation/transmission period; or the UE preferentially sends or preempts the V2X periodic message to send high-priority V2X data; or the UE's V2X application layer or PDCP.
  • the layer or the RLC layer performs V2X packet compression, merging, discarding, and the like according to the V2X message type, service/application type, priority, and the like.
  • the method according to the above embodiments can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases It is a better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods of various embodiments of the present invention.
  • a device for congestion control of the Internet of Vehicles is provided, and the device is used to implement the foregoing embodiments and preferred embodiments, and details are not described herein.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 6 is a block diagram of a device structure of a vehicle network service congestion control according to an embodiment of the present invention.
  • the device is applied to a second network node side.
  • the device includes: a first receiving module 62, configured to be in the first When detecting that the air interface is congested, the network node receives the congestion state information and/or the congestion control operation information sent by the first network node; the control module 64 is coupled to the first receiving module 62, and is configured as the node according to the congestion state information and/or Or congestion control operation information to control the Internet of Vehicles business.
  • the first network node is a base station or a base station type roadside unit
  • the second network node includes at least one of the following: a user equipment UE, a user equipment UE type roadside unit, and a first network.
  • a neighboring base station of the node a neighboring base station type RSU of the first network node, a multi-cell/multicast coordination entity MCE, a broadcast multicast service center BM-SC, and a car network V2X application server.
  • FIG. 7 is a block diagram of a device structure for congestion control of a vehicle network service according to an embodiment of the present invention.
  • the device is applied to a first network node side.
  • the first detection module 72 is configured to perform an air interface.
  • the first sending module 74 is coupled to the first detecting module 72 and configured to send congestion state information and/or congestion control operation information to the second network node when the air interface congestion is detected.
  • first detecting module 72 is an optional module in this embodiment, and may be omitted or omitted in a specific embodiment, and may be adopted for further improvement of the solution.
  • the first network node is a base station or a base station type roadside unit RSU
  • the second network node includes at least one of the following: a user equipment UE, a user equipment UE type roadside unit, and a first a neighboring base station of the network node, a neighboring base station type RSU of the first network node, a multi-cell/multicast coordination entity MCE, a broadcast multicast service center BM-SC, and a car network V2X application server.
  • FIGS. 6 and 7 correspond to the method embodiments of FIGS. 2 and 3.
  • FIG. 8 is a block diagram 3 of a device structure for congestion control of a vehicle network service according to an embodiment of the present invention.
  • the device is applied to a second network node side.
  • the device includes: a second detection module 82, which is set to be in the air.
  • the second sending module 84 is coupled to the second detecting module 82 and configured to send congestion status information to the first network node.
  • the second receiving module 86 is coupled to the second sending module 84 and configured to receive the first The congestion control operation information sent by the network node, wherein the congestion control operation information is a basis for the second network node to control the networked service.
  • the foregoing second detecting module 82 is an optional module in this embodiment, and may be in a specific implementation manner. To ignore or omit, and to make the program more perfect can also be used.
  • the first network node is a base station or a base station type RSU
  • the second network node is a UE or a UE type RSU.
  • FIG. 9 is a block diagram of a device structure of a vehicle network service congestion control according to an embodiment of the present invention.
  • the device is applied to a first network node side.
  • the device includes: a third receiving module 92, which is set to be in the first When the network node detects the congestion of the air interface, it receives the congestion state information sent by the second network node; the third sending module 94 is coupled to the third receiving module 92, and is configured to send congestion control to the second network node according to the congestion state information. Operation information, wherein the congestion control operation information is a basis for the second network node to control the networked service.
  • the first network node is a base station or a base station type RSU
  • the second network node is a UE or a UE type RSU.
  • FIGS. 8 and 9 correspond to the method embodiments of FIGS. 4 and 5.
  • each of the foregoing modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are respectively located in multiple processors. .
  • the present embodiment provides a method for controlling and mitigating traffic congestion of a car network service.
  • the base station may send air interface congestion state information and/or congestion control operation information to a vehicle UE or an RSU or a multi-cell.
  • MCE Multicast/Multicast Coordination Entity
  • the network node receiving congestion status information and/or congestion control operation information performs congestion control operation, reducing transmission to The data of the air interface; and the vehicle UE can report the congestion status information of the PC5 interface to the base station, and the base station configures the congestion control operation of the PC5 interface, thereby effectively controlling and alleviating the traffic congestion condition of the air interface and the PC5 interface, and ensuring the timely high-priority V2X data. Send it smoothly.
  • FIG. 10 is a schematic diagram 1 of a vehicle network congestion control according to an alternative embodiment of the present invention. The method is used for a Uu interface. Congestion, as shown in Figure 10, the steps of the method may include:
  • Step S1002 The base station detects a congestion state of the Uu interface.
  • Step S1004 The base station sends the congestion state information and/or the congestion control operation information to the UE and/or the UE type RSU or the neighboring base station or the MCE or V2X application server.
  • Step S1006 The UE and/or the UE type RSU or the neighboring base station or the MCE or V2X application server performs the congestion control operation according to the congestion state information and/or the congestion control operation information.
  • the congestion state information involved in the optional embodiment may include: Uu interface uplink congestion state information, or Uu interface downlink congestion state information; wherein, the Uu interface uplink congestion state information includes: a congestion indication and/or The degree of congestion is such as a low, medium, high or quantized level scalar value; and the Uu interface downlink congestion status information includes: a congestion indication, and/or a level scalar value such as low, medium, high or quantized congestion level, and/or Congestion status of each broadcast traffic channel;
  • the congestion control operation information involved in the optional embodiment may include: an Uu interface congestion control operation indication, an indication of reducing a V2X periodic message transmission period, or an indication of a V2X message transmission frequency level (eg, low, normal, high). Or semi-static resource period configuration of the V2X service, or the indication of the start/suspend of the V2X periodic message, the effective time, the priority, the service type, or the configuration of the specific application congestion control parameter, or the PDCP packet loss timing of the V2X bearer.
  • the manner in which the base station involved in the step S404 of the present embodiment sends the congestion state information and/or the congestion control operation information to the UE and/or the UE type RSU mode to send the congestion state information and/or the congestion control operation information may be Transmitting congestion state information and/or congestion control operation information by a system broadcast message or an RRC connection reconfiguration message;
  • step S406 the method in this alternative embodiment can be implemented as follows:
  • the Uu interface congestion control operation information is received by the UE and/or the UE type RSU to reduce the V2X periodic message transmission period, or the V2X message transmission frequency level (such as low, normal, high), or the semi-static of the V2X service.
  • the UE or the UE type RSU reduces the transmission period of the V2X periodic message or sends the V2X service according to the configuration information when the resource period is configured, or the configuration of the indication, the effective time, the priority, and the service type of the V2X periodic message is started/paused. ;or,
  • the UE access layer check is limited to the specific application congestion control parameter, if Limit, then cancel the initiation of RRC connection establishment; or,
  • the UE performs the packet loss operation of the V2X data according to the configured PDCP packet loss timer value when the UE receives the configuration of the Uu interface congestion operation configuration for the V2X bearer PDCP packet loss timer; or
  • the UE When the UE receives the congestion status information of the Uu interface, the UE notifies the V2X application layer that the air interface is congested, and the V2X application layer determines whether to reduce the V2X message generation/transmission period; or
  • the UE When the UE receives the congestion status information of the Uu interface, the UE preferentially sends or preempts the periodic message or the resource of the normal cellular message to send the high priority V2X data; or
  • the UE When the UE receives the congestion status information of the Uu interface, the UE reports the recommended PDCP packet loss timer configuration to the eNB.
  • the congestion state information can be established through the X2 interface request message, or the X2 interface establishes the response message, or the load.
  • An information message, or an eNB configuration update message, or an eNB configuration update acknowledgement message, or a resource status response message, or a resource status update message is sent;
  • the manner involved in the step S406 in this embodiment may be implemented by: after receiving the congestion status information, the neighboring base station may send the congestion status information to the UE or the UE by using a broadcast message or an RRC connection reconfiguration message. Configure congestion control operation information;
  • the method may further include: combining the MCE with the congestion status, considering converting some TMGI services broadcasted by the MBMS into the SC-PTM broadcast, and passing the MBMS session. a start request message or an MBMS session update request message to transmit SC-PTM information to a base station; After the station sends the congestion status information to the V2X application server, the V2X application server may merge or discard the V2X data packets according to the V2X service type, priority, and sending period, and reduce the transmission to the air interface. V2X data.
  • the optional embodiment may further include that the eNB/MCE identifies the V2X MBMS by the following method. Hosting:
  • the MBMS bearer assigned to the special TMGI identity of the V2X service.
  • FIG. 11 is a flow chart 2 of a vehicle network congestion control according to an alternative embodiment of the present invention.
  • the method is used for congestion of a PC5 interface. As shown in FIG. 11, the steps of the method include:
  • Step S1102 The UE detects a congestion state of the PC5 interface.
  • Step S1104 The UE sends the congestion status information to the base station.
  • Step S1106 The UE receives the PC5 interface congestion control operation information sent by the base station;
  • the manner in which the UE in the foregoing optional embodiment sends the congestion state information to the base station may be: the UE sends the congestion state information to the base station by using the side link UE information (the sidelink UEInformation), where the congestion state information includes: the PC5 interface congestion indication , and / or PC5 interface congestion level such as low, medium, high or quantized level scalar value;
  • the PC5 interface congestion control operation information related to the foregoing includes: a PC5 interface communication resource configuration; or an indication of reducing a periodic V2X information transmission period; or a periodic V2X information transmission frequency level such as a low, normal, or high indication; or activating / Suspend the configuration of the V2X periodic message indication, the effective time, the priority, the service type, or the configuration of the semi-static resource period of the V2X service on the PC5 interface.
  • the configuration of the PC5 interface communication resource includes two types of resources: mode 1 and mode 2, and the mode 2 resource pool is configured with one or more priorities, and rules for using two types of resources.
  • the usage rule of the resource such as the configuration priority threshold, is sent using the mode 1 resource for the V2X data priority higher than or equal to the threshold, otherwise the content type mode 2 resource is used.
  • the PC5 interface congestion control operation information in the optional embodiment is sent by using an RRC connection reconfiguration message; the UE receives the PC5 interface congestion control operation information configured by the base station, and performs operations according to the configuration;
  • Step S1202 The eNB detects the air interface congestion state, and after detecting the air interface congestion, sends the congestion state information to the V2X application server through the core network;
  • the congestion status information includes a congestion status and/or a congestion level.
  • Step S1204 After receiving the congestion status information, the V2X application server merges or discards the V2X data packets according to the V2X service type, the priority, the sending period, and the like to reduce the V2X data sent to the air interface, thereby alleviating the air interface congestion.
  • FIG. 13 is a flowchart of a method for UE to alleviate congestion in a congestion state according to an optional embodiment of the present invention. As shown in FIG. 13, the steps of the method include:
  • Step S1302 After detecting that the air interface is congested, the eNB sends the congestion state information and/or the congestion operation configuration information to the UE.
  • the congestion operation configuration information includes: reducing an indication of a periodic information transmission period; or configuring a transmission frequency level of the periodic information (low, normal, high); or configuring an indication of starting/pausing to send a periodic message, an effective time, and a priority Or the service type, or configure the semi-static resource period of the V2X service; or configure the application-specific congestion control parameter to limit the UE that initiates the V2X service to access the network; or configure the PDCP packet loss timer value of the V2X bearer;
  • Step S1304 After receiving the congestion state information and/or the congestion operation configuration information, the UE performs a congestion mitigation operation.
  • the UE receives the configuration information of the congestion operation, such as reducing the indication of the periodic information transmission period, or configuring the transmission frequency level of the periodic information (low, normal, high), or configuring the indication of starting/pausing to send the periodic message,
  • the effective time, the priority, the service type, or the semi-static resource period of the V2X service and the UE sends the V2X service according to the configuration information; or
  • the access layer check of the UE is limited to the specific application congestion control parameter, if the limitation is , cancel the initiation of the RRC connection establishment; or,
  • the UE If the UE receives the configuration information of the congestion operation, such as configuring the PDCP packet loss timer value of the V2X bearer, the UE performs the packet loss operation of the V2X data according to the configured PDCP packet loss timer value; or
  • the UE If the UE receives the congestion status information, the UE notifies the V2X application layer that the air interface is congested, and the V2X application layer further determines Whether to reduce the generation/transmission period of V2X messages; or,
  • the UE preferentially sends or preempts the periodic message or the resource of the normal cellular message to send the high priority V2X data; or
  • the UE reports the recommended PDCP packet loss timer configuration to the eNB.
  • the base station may send the congestion status information to the neighboring base station through the X2 interface after the base station detects that the air interface is congested, so that the neighboring base station also knows the congestion. status.
  • the base station and the neighboring base station may inform the UE by using the broadcast message or the RRC dedicated signaling, and may configure the congestion control operation information for the UE to alleviate the air interface congestion.
  • FIG. 14 is an X2 port according to an alternative embodiment of the present invention. A flow chart of the manner of sending congestion status information, as shown in FIG. 14, the steps of the method include:
  • Step S1402 The eNB1 detects the air interface congestion state, and after detecting the air interface congestion, transmits the congestion state information to the neighboring base station eNB2 through the X2 port.
  • the congestion status information includes a congestion status and/or a congestion level of the MBMS and/or the SC-PTM.
  • the congestion status information may be carried in an X2 interface setup request message, or an X2 interface setup response message, or a load information message, or an eNB configuration update message, or an eNB configuration update acknowledgement message, or a resource status response message, or a resource status update message, or In other X2 interface messages.
  • Step S1404 After receiving the congestion status information sent by the neighboring base station eNB1, the eNB2 may indicate the congestion status to the UE or configure the congestion control operation information for the UE by using a broadcast message or a dedicated signaling.
  • the specific method is as in the second embodiment.
  • the base station in this alternative embodiment may also be a base station type RSU.
  • the MBMS broadcast area is large, and the MBMS data using the same TMGI has the same MBMS service area and cell identification list.
  • a V2X scenario only some UEs in the vicinity of the UE need to know the state of the UE, and the farther UE does not need to know. Only for some V2X scenarios, such as a traffic accident in a certain place, the far-end UE needs to be known. To plan the route ahead of time. And the transmission range/current geographic location authorized by different UEs may be different. Therefore, for the V2X scenario, it is considered to reduce the V2X message broadcast area, thereby reducing radio resource consumption to alleviate air interface congestion.
  • the single-cell point-to-multipoint broadcast SC-PTM is a single-cell dynamic configuration and has a more flexible broadcast area configuration than MBMS.
  • the MCE may decide whether to use the MBMS or SC-PTM broadcast mode. Then, when the eNB detects that the air interface is congested, the congestion status information is sent to the MCE. To save air interface resources, the MCE may decide to broadcast some TMGI services using the SC-PTM mode and reduce the broadcast area.
  • 15 is a flowchart of a method for reducing a broadcast area by using an SC-PTM in a congestion state according to an alternative embodiment of the present invention. As shown in FIG. 15, the steps of the method include:
  • Step S1502 The eNB detects the air interface congestion state, and after detecting the air interface congestion, sends the congestion status information to the MCE;
  • Step S1504 The MCE receives the congestion indication information of the eNB, and when there is an MBMS session start request initiated by the network side, The MCE combines the congestion status information to consider broadcasting some TMGI broadcast services through the SC-PTM mode; or the MCE updates some MBMS broadcast TMGI services to be broadcast by the SC-PTM method;
  • Step S1506 The MCE sends the SC-PTM information to the eNB by using the MBMS Session Start Request message or the MBMS Session Update Request message.
  • the eNB broadcasts the corresponding TMGI service by using the SC-PTM mode.
  • Step S1508 When the eNB detects that the air interface congestion mitigation or the congestion state changes, for example, the congestion of a certain cell is relieved and the other cells experience congestion, the eNB sends a congestion status update message to the MCE. In addition, the sending of the congestion status update message may also be triggered periodically. In order for the MCE to know the congestion status of the eNB, no congestion operation or a congestion policy is changed.
  • the eNB/MCE can preferably identify whether it is a V2X broadcast service or a normal broadcast service, and the eNB can know that the air interface congestion is caused by too much V2X service data or normal broadcast service, and decides to hang when congestion occurs. What business.
  • FIG. 16 is a schematic diagram of an eNB/MCE identifying a V2X bearer according to an alternative embodiment of the present invention. As shown in FIG. 16, the MBMS session start request message initiated by the BM-SC carries information such as TMGI and QoS. The eNB/MCE identifies the V2X service/bearer;
  • the specific part TMGI is used to allocate to the V2X service.
  • the eNB/MCE can identify that the MBMS bearer is used for the V2X service; or
  • the eNB/MCE can identify that the MBMS bearer is used for V2X business; or
  • a delay-sensitive service indication is added to the MBMS session start request message to indicate a delay-sensitive service such as a V2X service.
  • the eNB After receiving the MBMS session start request, the eNB schedules air interface radio resources, establishes an MBMS radio bearer, and prepares for transmitting MBMS data. When there are too many MBMS services and the air interface radio resources for broadcasting are insufficient, the eNB identifies whether the V2X service is excessive or the ordinary broadcast service is too much, and sends the congestion status information to other nodes, such as the UE, the MCE, the neighboring base station, and the V2X. Application servers and the like to help spread congestion information or implement congestion control, as shown in Embodiments 1 through 4.
  • the out-of-coverage UE performs PC5 communication using pre-configured PC5/sidelink (unilateral link) resources, and the idle state UE uses PC5/sidelink (unilateral link) resources broadcasted in the broadcast message for PC5 communication, and the connected UE needs
  • the PC5 interface communication resource is requested from the base station.
  • the base station may choose to configure a mode 1 (scheduling resource) resource or a mode 2 (UE autonomous resource selection) resource for the connected state UE.
  • FIG. 17 is a flowchart 1 of a method for controlling congestion of a PC5 interface according to an alternative embodiment of the present invention. As shown in FIG. 17, the steps of the method include:
  • Step S1702 When the UE detects the congestion status of the PC5 interface, and reports the congestion of the PC5 interface, the UE reports the congestion information of the PC5 interface to the base station.
  • the PC5 congestion status information may be sent through a sidelinkUEInformation message, or the bearer may be sent in other RRC messages.
  • Step S1704 When the UE1 or other connected UE2 requests the PC5 communication resource from the eNB, the eNB configures two types of resources, mode 1 and mode 2, and one or more priorities for the mode 2 resource pool. And rules for the use of two types of resources.
  • the usage rule of the resource such as the configuration priority threshold, is sent using the mode 1 resource for the V2X data priority higher than or equal to the threshold, otherwise the content type mode 2 resource is used.
  • Step S1706 The eNB sends resource configuration information to the UE.
  • the resource configuration information is sent through an RRC connection reconfiguration message.
  • FIG. 18 is a second flowchart of a PC5 interface congestion control method according to an alternative embodiment of the present invention. As shown in FIG. 18, the steps of the method include:
  • Step S1802 When the UE detects the congestion state of the PC5 interface, and reports that the PC5 interface is congested, the PC5 interface congestion information is reported to the base station.
  • the PC5 congestion status information may be sent through a sidelinkUEInformation message, or the bearer may be sent in other RRC messages.
  • Step 1804 After receiving the PC5 interface congestion indication information, the eNB configures the PC5 interface congestion control operation information.
  • the PC5 interface congestion control operation information includes: an indication of reducing a periodic V2X information transmission period; or a periodic V2X information transmission frequency level such as low, normal, and high; or configuring an indication of starting/pausing to send a periodic message, valid time, and priority Level, service type, etc.; or semi-static resource period of the V2X service configured on the PC5 interface.
  • Step S1806 The base station sends the PC5 interface congestion control operation information, and can be sent by using a broadcast message or an RRC connection reconfiguration message.
  • the UE After receiving the congestion control operation information of the PC5 interface, the UE sends the V2X message of the PC5 interface according to the configuration.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • Step S1 When the first network node detects air interface congestion, the second network node receives the congestion state information and/or the congestion control operation information sent by the first network node;
  • Step S2 The second network node controls the networked service according to the congestion status information and/or the congestion control operation information.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the second network node receives the congestion state information and/or the congestion control operation information sent by the first network node, and the second network node is configured according to the congestion state information and/or congestion.
  • the control operation information controls the vehicle network service. It can be seen that the network node can control the vehicle network service through the congestion state information and/or the congestion control operation information, thereby alleviating the pressure of the air interface service, thereby solving the related technology in the vehicle driving.
  • the speed is slow, the vehicle density is high, and the frequency of the V2X message sent by the vehicle is high, the V2X service congestion of the air interface or the PC5 interface is caused.

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  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un dispositif de gestion des encombrements d'un service d'Internet des véhicules. Le procédé comprend : la réception par un second nœud de réseau d'informations d'état d'encombrement et/ou d'informations d'opération de gestion des encombrements transmises par un premier nœud de réseau ; et la gestion d'un service d'Internet des véhicules par le second nœud de réseau en fonction des informations d'état d'encombrement et/ou des informations d'opération de gestion des encombrements. La présente invention résout le problème dans l'état de la technique selon lequel un service V2X à interface radioélectrique ou interface PC5 devient encombré lorsque des véhicules se déplacent lentement, qu'une densité de véhicules est élevée et que la fréquence des véhicules transmettant des messages V2X est élevée.
PCT/CN2017/071962 2016-02-04 2017-01-20 Procédé et dispositif de gestion des encombrements d'un service d'internet des véhicules WO2017133501A1 (fr)

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