WO2017185295A1 - Communication method, network side device, and vehicle terminal device - Google Patents

Communication method, network side device, and vehicle terminal device Download PDF

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Publication number
WO2017185295A1
WO2017185295A1 PCT/CN2016/080502 CN2016080502W WO2017185295A1 WO 2017185295 A1 WO2017185295 A1 WO 2017185295A1 CN 2016080502 W CN2016080502 W CN 2016080502W WO 2017185295 A1 WO2017185295 A1 WO 2017185295A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
terminal device
information
network side
vehicle terminal
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PCT/CN2016/080502
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French (fr)
Chinese (zh)
Inventor
孙继忠
陈亮
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华为技术有限公司
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Priority to PCT/CN2016/080502 priority Critical patent/WO2017185295A1/en
Publication of WO2017185295A1 publication Critical patent/WO2017185295A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup

Definitions

  • the present invention relates to the field of communications, and in particular, to a communication method, a network side device, and a vehicle terminal device.
  • VDC Vehicle Direct Communication
  • V2V vehicle-to-vehicle
  • communication between vehicle terminals can be performed without communication of the network-side devices, and the network-side devices can perform resource configuration, scheduling, coordination, etc., between the auxiliary terminals.
  • Direct communication When the network side configures the wireless parameter and the resource scheduling for the vehicle terminal, the vehicle terminal needs to send a resource scheduling request to the network side device (such as the base station), and requests the network side device to allocate the VDC wireless resource thereto. After receiving the request from the vehicle terminal, the network side device allocates a VDC radio resource to the vehicle terminal, and transmits the allocated information of the radio resource to the vehicle terminal. After the vehicle terminal acquires the information of the wireless resource, the wireless terminal can use the wireless resource to send information to other vehicles.
  • the network side device such as the base station
  • VDC When VDC is performed between vehicle terminals, if different vehicles use the same time-frequency resources or different time-frequency resources, the effects of the near-far effect may occur.
  • the network-side device allocates different VDC radio resources to different vehicle terminals, but this may result in waste of radio resources, that is, reduce utilization of radio resources.
  • the present invention provides a communication method, a network side device, and a vehicle terminal device, which can improve the utilization of wireless resources of a VDC.
  • the present invention provides a communication method, including: a network side device receiving a resource scheduling request sent by at least one vehicle terminal device, where the resource scheduling request is used to request the network side device to correspond to the resource scheduling request
  • Vehicle terminal device allocates radio resources for vehicle direct communication VDC
  • the network side device receives vehicle state information transmitted by the at least one vehicle terminal device, the vehicle state information including a location of the vehicle corresponding to the vehicle state information Information
  • the network side device allocates a radio resource for the VDC to the at least one vehicle terminal device according to the vehicle state information
  • the network side device sends a control message to the at least one vehicle terminal device, the control message And carrying information about the radio resource of the VDC by the vehicle terminal device corresponding to the control message.
  • the network side device acquires vehicle state information of the vehicle, and then allocates a wireless resource for the VDC to the vehicle terminal device according to the location information of the vehicle carried in the vehicle state information. Therefore, the wireless resources can be reasonably utilized to improve the utilization of resources.
  • the network side device allocates radio resources for the VDC to the at least one vehicle terminal device according to the vehicle state information, including: the network side device according to the at least one vehicle terminal The location information of the vehicle to which the device belongs is assigned to the same wireless terminal resource for the VDC for different vehicle terminal devices in the at least one vehicle terminal device.
  • the wireless resource is allocated to the vehicle terminal device according to the location information of the vehicle, for example, according to the location information of the vehicle, and the wireless resource is allocated to the vehicle terminal device by using a multiplexing technology or a ZONE technology.
  • the vehicle terminal devices of the vehicles located at different locations can use the same radio resources (or time-frequency resources), thereby achieving different resource utilization differences, and also reducing the effects of VDC transmission delay and eliminating near-far effects.
  • the network side device sends a control message to the at least one vehicle terminal device, where the network side device determines, according to the location information of the vehicle to which the at least one vehicle terminal device belongs The sequence in which the at least one vehicle terminal device sends the control message; the network side device sends the control message to the at least one vehicle terminal device according to the sequence.
  • the sequence of the network side device transmitting the control message to the vehicle terminal device may be determined according to the position information of the vehicle according to the position of the vehicle, and the control message is sent according to the sequence.
  • the scheduling delay of the radio resources for the VDC can be reduced.
  • the network side device receiving the vehicle state information sent by the at least one vehicle terminal device includes: the network side device receiving the at least one vehicle in a first scheduling period of the resource pool The vehicle status information sent by the terminal device; the network side device sending the control message to the at least one vehicle terminal device, where the network side device is in the Mth to Nth downlink sub-times in the first scheduling period Sending, by the frame, a control message to the at least one vehicle terminal device, where the control message is carried on a physical downlink control channel PDCCH, the first tone
  • the N period includes N downlink subframes, 1 ⁇ M ⁇ N.
  • the network side device first acquires vehicle state information of the vehicle in the same resource scheduling period, allocates VDC radio resources according to the vehicle state information, and then sends a control message in the last NM downlink subframes. In order to inform the vehicle terminal device VDC of the radio resource information, the scheduling delay of the VDC radio resource can be saved.
  • the network side device may send a control message to the vehicle terminal device in the Nth downlink subframe, so that the device may perform resource scheduling for a larger number of vehicle terminals while saving the scheduling delay.
  • the network side device receiving the vehicle state information sent by the at least one vehicle terminal device includes: the network side device receiving the at least one vehicle in a first scheduling period of the resource pool The vehicle status information sent by the terminal device; the network side device sending the control message to the at least one vehicle terminal device, the network side device to the at least one scheduling period of the first scheduling period to the at least one A vehicle terminal device transmits a control message, and the control message is carried on the PDCCH.
  • the vehicle state information of the vehicle is acquired in the last resource scheduling period, and then the VDC radio resource is allocated according to the vehicle state information, and then the control message is sent to the vehicle terminal device in the next resource scheduling period, thereby increasing the The number of vehicle terminal devices that schedule VDC radio resources.
  • the network side device receiving the vehicle state information sent by the at least one vehicle terminal device includes: the network side device receiving the at least one vehicle terminal device on a physical uplink shared channel PUSCH The transmitted vehicle state information carried in the MAC Control Unit CE in the Medium Access Control MAC Protocol Data Unit PDU.
  • the vehicle terminal device forms a MAC PDU by means of a MAC CE, and is carried on the PUSCH to report to the network side device, and can report the vehicle flexibly, independently, and accurately in a case where the existing protocol modification is relatively small. Status information, and can also reduce reporting delays.
  • the communication method before the network side device receives the vehicle state information sent by the at least one vehicle terminal device, the communication method further includes: the network side device transmitting the configuration to the at least one vehicle terminal device Parameter information, the configuration parameter information is used to indicate that the vehicle state information sent by the at least one vehicle terminal device needs to include location information of a vehicle to which the vehicle terminal device belongs; wherein the network side device receives at least one vehicle terminal device hair
  • the vehicle state information sent includes: the network side device receiving vehicle state information transmitted by each of the at least one vehicle terminal device according to the configuration parameter information, wherein the vehicle state information includes the vehicle terminal device Location information of the vehicle to which it belongs.
  • the network side device sends configuration parameter information indicating the content of the vehicle state information to the vehicle terminal device, and then the vehicle terminal device can report the vehicle state information of the vehicle to the network side device according to the parameter configured by the network side device. In this way, the vehicle terminal device can flexibly report the state information of the vehicle according to the needs of the network side device.
  • the configuration parameter information is further used to indicate a period in which the at least one vehicle terminal device sends vehicle state information; wherein the network side device receives each of the at least one vehicle terminal device The vehicle terminal device transmits the vehicle state information according to the configuration parameter information, where the vehicle state information includes location information of the vehicle to which the vehicle terminal device belongs, and the network side device receives the at least one vehicle terminal device according to the location The vehicle status information transmitted periodically, the vehicle status information including location information of the vehicle described by the vehicle terminal device.
  • the vehicle terminal device can report the state information of the vehicle to the network vehicle device according to the period indicated in the configuration parameter sent by the network side device, so that the vehicle state information recorded on the network side device can be updated in time,
  • the network side device is enabled to more accurately allocate VDC radio resources to the vehicle terminal device according to the latest vehicle status information.
  • the configuration parameter information is further used to indicate a maximum number of bytes of vehicle state information sent by the at least one vehicle terminal device; wherein the network side device receives the at least one vehicle terminal The vehicle state information sent by the device according to the configuration parameter information, the vehicle state information including location information of the vehicle corresponding to the vehicle terminal device, including: the network side device receiving the at least one vehicle terminal device according to the configuration Vehicle state information transmitted by the parameter information, the vehicle state information including location information of the vehicle to which the vehicle terminal device belongs, the number of bytes of the vehicle state information being less than or equal to the maximum number of bytes.
  • the network side device indicates the number of bytes of the reported vehicle state information for the vehicle terminal device, and then the vehicle terminal device can report the vehicle state information according to the number of bytes, thereby preventing the vehicle terminal device from transmitting more than The number of bytes of vehicle status information causes a problem of wasted resources. .
  • the network side device determines the maximum number of bytes according to a cell coverage of the network side device.
  • the maximum number of bytes of the vehicle state information is flexibly determined according to the coverage of the cell, and the resource carrying the vehicle state information can be reasonably utilized to improve the utilization rate of the resource carrying the vehicle state information.
  • the configuration parameter information is further used to indicate at least one of the vehicle state information that needs to include direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and altitude information of the vehicle.
  • the network side device receives vehicle state information that is sent by the at least one vehicle terminal device according to the configuration parameter information, where the vehicle state information includes location information corresponding to the vehicle terminal device, including: the network side Receiving, by the device, vehicle state information transmitted by the at least one vehicle terminal device according to the configuration parameter information, the vehicle state information including at least one of location information of a vehicle to which the vehicle terminal device belongs and information: the vehicle Direction information, speed information of the vehicle, acceleration information of the vehicle, and geographic height information of the vehicle.
  • the vehicle terminal device when the vehicle terminal device reports the speed information or the acceleration information of the vehicle according to the indication of the configuration parameter information of the network side device, the frequent switching problem caused by the vehicle terminal quickly exiting the cell can be reduced; the reporting direction information is reported.
  • the network side device can determine the driving trajectory of the vehicle to perform the warning prompt between the vehicles, when the geographic height information is reported, the network side device can obtain more accurate position information of the vehicle.
  • the present invention provides a communication method, including: a vehicle terminal device transmitting vehicle state information to a network side device, the vehicle state information including location information of a vehicle to which the vehicle terminal device belongs; the vehicle terminal device Transmitting, to the network side device, a resource scheduling request, where the resource scheduling request is used to request the network side device to allocate radio resource information for a vehicle direct communication VDC to the vehicle; and the vehicle terminal device receives the network side A control message sent by the device, where the control message carries the radio resource information.
  • the vehicle terminal device reports the vehicle state information of the vehicle to the network side device, so that the network side device can allocate the wireless resource for the VDC to the vehicle terminal device according to the location information of the vehicle carried by the vehicle state information. Therefore, the wireless resources can be reasonably utilized to improve the utilization of resources.
  • the vehicle terminal device sends the vehicle state information to the network side device, including: the vehicle terminal device controls the MAC in the MAC protocol data unit PDU through the media access on the physical uplink shared channel PUSCH.
  • the control unit CE transmits the vehicle status information to the network side device.
  • the vehicle terminal device forms a MAC PDU by means of a MAC CE, and is carried on the PUSCH to report to the network side device, and can report the vehicle flexibly, independently, and accurately in a case where the existing protocol modification is relatively small. Status information, and can also reduce reporting delays.
  • the communication method before the vehicle terminal device sends the vehicle state information to the network side device, the communication method further includes: the vehicle terminal device receiving the configuration parameter information sent by the network side device, where The configuration parameter information is used to indicate that the vehicle state information transmitted by the vehicle terminal device needs to include location information of a vehicle to which the vehicle terminal device belongs; wherein the vehicle terminal device sends vehicle state information to the network side device, including The vehicle terminal device transmits the vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs.
  • the vehicle terminal device can report the vehicle state information of the vehicle to the network side device according to the parameter configured by the network side device. In this way, the vehicle terminal device can flexibly report the state information of the vehicle according to the needs of the network side device.
  • the configuration parameter information is further used to indicate a period in which the vehicle terminal device sends the vehicle state information, where the vehicle terminal device sends the vehicle terminal device to the network side according to the configuration parameter information.
  • the device sends the vehicle status information, where the vehicle status information includes location information of the vehicle to which the vehicle terminal device belongs, including: the vehicle terminal device according to the period, according to the configuration parameter information, to the network side
  • the device transmits the vehicle status information, the vehicle status information including location information of a vehicle to which the vehicle terminal device belongs.
  • the vehicle terminal device can report the state information of the vehicle to the network vehicle device according to the period indicated in the configuration parameter sent by the network side device, so that the vehicle state information recorded on the network side device can be updated in time,
  • the network side device is enabled to more accurately allocate VDC radio resources to the vehicle terminal device according to the latest vehicle status information.
  • the vehicle terminal device sends the vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes a location of a vehicle to which the vehicle terminal device belongs
  • the information includes: the vehicle terminal device sends the vehicle state information to the network side device according to the configuration parameter information when an emergency event occurs in the vehicle, where the vehicle state information includes the vehicle terminal device Location information of the vehicle.
  • the vehicle terminal device can report the state of the vehicle when the emergency event is sent in the vehicle. Information so that the status information of the vehicle can be reported in a more timely manner in an emergency.
  • the configuration parameter information is further used to indicate a maximum number of bytes of vehicle state information sent by the vehicle terminal device, where the vehicle terminal device reports the information according to the configuration parameter information.
  • the network side device sends the vehicle state information, where the vehicle state information includes the location information of the vehicle to which the vehicle terminal device belongs, and includes: the vehicle terminal device sends the vehicle state information to the network side device according to the configuration parameter information,
  • the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs, and the number of bytes of the vehicle state information is less than or equal to the maximum number of bytes.
  • the vehicle terminal device can report the vehicle state information according to the maximum number of bytes configured by the network side device, so that the vehicle terminal device can avoid the uplink resource caused by the vehicle state information exceeding the maximum number of bytes. waste.
  • the receiving, by the vehicle terminal device, the control message sent by the network side device includes: receiving, by the vehicle terminal device, a physical downlink control channel PDCCH control message sent by the network side device, where The PDCCH control message carries radio resource information for the VDC to which the vehicle to which the vehicle terminal device belongs.
  • the configuration parameter information is further used to indicate that the vehicle state information needs to include direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and the vehicle.
  • At least one of the geographic height information; wherein the vehicle terminal device transmits vehicle state information to the network side device, the vehicle state information including location information of the vehicle to which the vehicle terminal device belongs includes: the vehicle The terminal device transmits vehicle state information to the network side device according to the configuration parameter information, the vehicle state information including at least one of location information of the vehicle and following information: direction information of the vehicle, the vehicle Speed information, acceleration information of the vehicle, and geographic height information of the vehicle.
  • the vehicle terminal device when the vehicle terminal device reports the speed information or the acceleration information of the vehicle according to the indication of the configuration parameter information of the network side device, the frequent switching problem caused by the vehicle terminal quickly exiting the cell can be reduced; the reporting direction information is reported.
  • the network side device can determine the driving trajectory of the vehicle to perform the warning prompt between the vehicles, when the geographic height information is reported, the network side device can obtain more accurate position information of the vehicle.
  • a third aspect of the present invention provides a network side device including respective modules for performing the communication method of the first aspect
  • the present invention provides a vehicle terminal device, the vehicle terminal device including The various modules of the communication method of the second aspect are executed.
  • the present invention provides a communication system comprising the network side device according to the third aspect, and the vehicle terminal device according to the fourth aspect.
  • the present invention provides a network side device, including a receiver, a transmitter, at least one processor, and a memory, where the processor is configured to execute code in the memory, when the code is executed,
  • the processor implements the method of the first aspect.
  • the present invention provides a vehicle terminal device comprising a receiver, a transmitter, at least one processor, and a memory, the processor for executing code in the memory.
  • the processor implements the method of the second aspect when the code is executed.
  • the present invention provides a computer readable medium storing program code for execution by a network side device, the program code comprising instructions for performing aspects of the first aspect.
  • the present invention provides a computer readable medium storing program code for execution by a vehicle terminal device, the program code comprising instructions for performing the method of the second aspect.
  • FIG. 1 is an exemplary architectural diagram of a network for inter-vehicle communication in accordance with an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a communication method according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a network side device according to an embodiment of the present invention.
  • Fig. 5 is a schematic structural diagram of a vehicle terminal device according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a network side device according to an embodiment of the present invention.
  • Fig. 7 is a schematic configuration diagram of a vehicle terminal device according to an embodiment of the present invention.
  • Vehicle direct communication belongs to a communication method in V2V communication
  • V2V communication belongs to a communication method in Device to Device (D2D) communication.
  • the network side device 110 may configure various transmission parameters for data transmission for the vehicle terminal device 120 and the vehicle terminal device 130, and the vehicle terminal device 120 may serve as a data sender to directly perform VDC with the vehicle terminal device 130, of course.
  • the vehicle terminal device 120 may also perform Long Term Evolution (LTE) communication with the network side device, and the LTE communication may also be performed between the vehicle terminal device 120 and the vehicle terminal device 130 through the network side device.
  • LTE Long Term Evolution
  • the network side device in the embodiment of the present invention is a device that is deployed in a radio access network and provides a wireless communication function for the terminal device, and may be a base station (BS), and may be, for example, a macro base station including various forms. , micro base stations, relay stations, access points, etc.
  • BS base station
  • the name of a device having a base station function may be different, for example, in an LTE network, called an evolved NodeB (abbreviated as NB or eNodeB), in the first In the third generation 3G network, it is called Node B and so on.
  • the vehicle terminal device is an upper mobile communication device deployed on the vehicle.
  • the direct communication between the vehicle terminal devices through the wireless resources enables the direct communication of the vehicle, the communication between the vehicle terminal device and the network side device, and the communication between the vehicle and the network side device is realized.
  • the vehicle terminal device can be equated with the vehicle.
  • FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present invention. It should be understood that FIG. 2 illustrates steps or operations of the communication method, but these steps or operations are merely examples, and embodiments of the present invention may perform other operations or variations of the various operations in FIG. 2. Moreover, the various steps in FIG. 2 may be performed in a different order than that presented in FIG. 2, and it is possible that not all operations in FIG. 2 are to be performed.
  • the network side device 203 of FIG. 2 may be a base station, but is not limited to a base station.
  • the vehicle terminal device 201 in FIG. 2 may be the vehicle terminal device 120 in FIG. 1, and accordingly, the vehicle terminal device 202 It may be the vehicle terminal device 130 in FIG.
  • the vehicle terminal device 202 sends a resource scheduling request to the network side device 203 (such as a base station), and the network side device receives the resource scheduling request sent by the terminal device 202.
  • the network side device 203 such as a base station
  • the network side device when a certain vehicle terminal device needs to directly communicate with other vehicle terminal devices, it needs to send a resource scheduling request to the network side device. After receiving the resource scheduling request sent by the vehicle terminal device, the network side device knows that it is necessary to allocate a radio resource for the VDC to the vehicle. It should be noted that, for the sake of brevity, only the communication flow between one vehicle terminal device and the network side device and one vehicle terminal device is shown in FIG. 2, and the number of vehicle terminal devices shown in FIG. 2 should not constitute the embodiment of the present invention.
  • the limitation, that is, the vehicle terminal device 201 and the vehicle terminal device 202 may be any of a plurality of vehicle terminal devices that communicate with the network side device 203.
  • the vehicle terminal device 202 transmits vehicle status information (Vehicle Status Information) to the network side device 203, and the vehicle status information includes location information of the vehicle to which the vehicle terminal device 202 belongs.
  • vehicle status information includes location information of the vehicle to which the vehicle terminal device 202 belongs.
  • the network side device 203 receives the vehicle state information transmitted by the vehicle terminal device 202.
  • Step 220 and step 210 are in no particular order.
  • the resource scheduling request of the vehicle may be received first, and then the vehicle state information of the vehicle may be received.
  • the vehicle state information of the vehicle may be received first, and then the resource scheduling request of the vehicle may be received.
  • the network side device 203 After receiving the resource scheduling degree request sent by the vehicle terminal device 202, the network side device 203 allocates the wireless resource for the VDC to the vehicle terminal device 202 according to the location information in the received vehicle state information. After receiving the resource scheduling request sent by the vehicle terminal device 202, the network side device 203 may allocate the radio resource for the VDC to the vehicle according to the vehicle state information of the vehicle to which the vehicle terminal device is received and recorded, and may be based on The vehicle status information newly received from the vehicle terminal device thereafter allocates radio resources for the VDC to the vehicle terminal device.
  • the radio resources in the embodiments of the present invention include time domain resources and/or frequency resources.
  • the network side device 203 sends a control message to the vehicle terminal device 202, where the control message carries information of the radio resource for the VDC allocated by the network side device 203 for the vehicle terminal device 202.
  • the vehicle terminal device 202 receives the control message so that the radio resource for the VDC can be determined according to the information carried in the control message.
  • the vehicle terminal device 202 After determining the wireless resource according to the control message received from the network side device 203, the vehicle terminal device 202 performs direct communication with the vehicle terminal device 201 using the wireless resource.
  • the wireless resource for the VDC is allocated to the vehicle in combination with the location information of the vehicle.
  • the source can make full use of the position distribution of the vehicle and reasonably allocate frequency resources for the vehicle. For example, vehicles with a certain positional relationship can use the same time domain resources, thereby increasing the number of vehicles using the same resources, and ultimately improving the utilization of resources. .
  • the network side device broadcasts the resource pool configuration information of the current cell to the vehicle terminal device, where the resource pool configuration information may be carried in System Information Block (SIB).
  • SIB System Information Block
  • the vehicle terminal device obtains configuration information of the resource pool from the SIB, and the configuration information of the resource pool includes parameters such as a resource pool period.
  • RRC radio resource control
  • the vehicle terminal device can notify the network side device of its own capability. Specifically, the vehicle can be identified by using bits of certain data. Whether the terminal device supports vehicle status information reporting and support VDC.
  • the 2bit can be used to indicate whether the vehicle terminal device supports status information reporting.
  • One possible indication manner is: “11” indicates that the vehicle terminal device supports vehicle status information reporting and supports VDC; “10” indicates that the vehicle terminal device supports vehicle status information. Reported but does not support VDC; “00” indicates that the vehicle terminal device does not support vehicle status information reporting.
  • the vehicle status information sent by the vehicle to the network side device is sent by the vehicle terminal device according to a certain format or content requirement.
  • the format or content requirement of the vehicle status information may be a static agreement between the vehicle terminal device and the network side device, or may be dynamically configured by the network side device according to specific requirements, and generate configuration parameter information, and send the information to the vehicle.
  • a terminal device to indicate a composition content or format of vehicle state information that the vehicle terminal device should transmit to the network side device.
  • the allocation method in FIG. 2 may further include S310.
  • S310 the same reference numerals in FIG. 3 as those in FIG. 2 denote the same meanings, and are not described herein again.
  • the network side device 203 sends configuration parameter information to the vehicle terminal device 202, where the configuration parameter information is used to indicate the content of the vehicle state information that the vehicle terminal device 202 needs to send to the network side device 203, or a format that the content should satisfy.
  • the vehicle terminal device 202 may perform S220 according to the configuration parameter information.
  • the network side device 203 may transmit configuration parameter information to the vehicle terminal device 202 through signaling such as Media Access Control (MAC) signaling or RRC signaling.
  • signaling such as Media Access Control (MAC) signaling or RRC signaling.
  • the configuration parameter information is used to indicate that the vehicle state information transmitted by the vehicle terminal device to the network side device includes location information of the vehicle.
  • the vehicle terminal device follows the configuration parameter information.
  • the network side device transmits the vehicle state information including the location information of the belonging vehicle, so that the network side device can allocate the wireless resources for the VDC to the vehicle according to the location information of the vehicle, thereby improving the utilization of the wireless resources.
  • the location information of the vehicle may include the longitude and dimension of the vehicle, and the longitude and dimensions may include two parts, a sign bit and a value, respectively.
  • the range of longitude may be (-180, 180) degrees, or may be (0, 360) degrees, and the range of dimensions may be (-90, 90) degrees.
  • Vehicles can obtain longitude and latitude information through the Global Positioning System (GPS).
  • GPS Global Positioning System
  • Longitude and dimension can be expressed in two formats, one in unit degree, the specific format can be "value 1. value 2", such as -35.2 degrees means 0 longitude westward 35.2 degrees; the other is "degree”
  • the mode of "minutes:seconds” indicates that the specific format may be a format of "value 3: value 4: value 5", such as -21:34:12, indicating that 0 longitude is 21 degrees 34 minutes and 12 seconds west.
  • the longitude and dimension are expressed in the format of "degree: minute: second"
  • the longitude and dimension can occupy 20 bits respectively, wherein 1 bit represents the symbol, 7 bit represents the value of the degree, 6 bit represents the value of the minute, and 6 bit represents the value of the second.
  • the position of the vehicle may be represented by using a relative position between the absolute current position information of the vehicle and the absolute position when the position information is reported to the network side device last time. Since the coverage of the cell is determinable, the maximum position difference between the two positions of the moving vehicle in the coverage of the cell can also be determined, that is, the relative position of the vehicle in the vehicle state information can be determined according to the maximum position difference. Number of digits.
  • the network side device can determine the maximum number of bytes that the vehicle terminal device should send the vehicle state information according to the coverage of the cell.
  • the maximum number of bytes of the vehicle state information is determined according to the coverage of the cell, which not only ensures the accuracy of the vehicle state information, but also can reasonably use the message carrying the vehicle state information to improve resource utilization.
  • the longitude and the dimension when the longitude and the dimension are expressed in the format of "degree: minute: second", if the coverage of the cell is 1 degree, the longitude and dimension of the vehicle may not be expressed, and only minutes and seconds are indicated.
  • the longitude and the dimension can occupy 16 bits respectively, wherein 1 bit represents a symbol, 6 bit represents a value of a minute, and 6 bit represents a value of a second, wherein 3 bits are reserved.
  • the vehicle status information may further include speed information of the vehicle.
  • the network side device can judge whether the vehicle is in the high speed running state or the low speed running state according to the speed information of the vehicle, and then can dispatch the vehicle in the high speed running state as a competitive resource. The problem of frequent cell handover caused by the rapid exit of the vehicle is reduced.
  • a possible implementation manner of the vehicle terminal device transmitting the speed information to the network side device is that, within a speed range, the speed in the speed range can be divided into different speeds according to a certain granularity. For example, if the maximum speed is 765 km/h, if the speed granularity is 3, the speed within 765 km/h can be divided into 256 speed points (ie 0 to 255). Accordingly, a 1-byte unsigned number can be used to indicate 256 index values, and each index value is multiplied by the velocity granularity to obtain a corresponding velocity value. For example, the speed according to the 5th speed point is 15 km/h.
  • the network side device may send a speed granularity information to the vehicle terminal device, and then the vehicle terminal device may determine an index value according to the speed of the vehicle according to the speed of the vehicle, and send the index value to the network side device in the vehicle state information.
  • the network side device receives the index value, the speed of the vehicle can be calculated according to the index value and the speed granularity.
  • the vehicle status information may further include direction information of the vehicle.
  • the network side device can predict the travel route of the vehicle according to the direction information of the vehicle, so that an alert prompt between the vehicles can be performed.
  • a possible implementation manner of the vehicle terminal device transmitting the speed information to the network side device is: based on the north, if the true north direction can be represented by 0, the angular range of the current driving direction of the vehicle can be represented (-180, 180). . That is, from south to west, the angle to the north is negative (-180, 0), and the range from north to east to south is positive (0, 180).
  • the direction represents the granularity L, where L is greater than one.
  • Another possible implementation manner of the vehicle terminal device transmitting the speed information to the network side device is: based on the north, if the north direction can be represented by 0, the angular range of the current driving direction of the vehicle can be represented (0, 360). . That is, from north to east, from east to south, from south to west, and further north to the angle range (0,360).
  • the angle range is (-180, 180)
  • 8 bits can be used to indicate the direction of the vehicle. Among them, 1 bit represents a symbol, and 7 bits represents 0 to 127.
  • the directional particle size can then be set to 1.5 degrees.
  • the corresponding direction value can be determined according to the direction granularity of 1.5 degrees and the index values of 0 to 127. For example, the index 0 indicates that the direction is the true north direction, 3 indicates that the north is the reference to the east at an angle of 4.5 degrees, and 100 indicates that the reference is 150 degrees to the east.
  • the network side device can carry the direction granularity in the configuration parameter information, and then the vehicle can determine an index according to the direction granularity and the driving direction of the direction, and the index is carried in the vehicle status information and sent to the network side device, and the network side device According to the index and direction granularity can be determined Out of the direction of the vehicle.
  • the configuration parameter information sent by the network side device to the vehicle terminal device may also be used to indicate a period in which the vehicle terminal device sends the vehicle state information to the network side device.
  • the vehicle terminal device may send the associated vehicle state information to the network side device according to the period.
  • the vehicle terminal device may also transmit its own vehicle status information to the network side device in advance when the period has not expired.
  • the vehicle terminal device periodically transmits its own vehicle state information to the network side device, so that the network side device can periodically update the vehicle state information of the vehicle, so that the vehicle can be allocated wireless resources according to the latest vehicle state information of the vehicle.
  • the configuration parameter information sent by the network side device to the vehicle terminal device may also be used to indicate that the location information in the vehicle state information sent by the vehicle terminal device may further include geographic height information of the vehicle, such as altitude information.
  • geographic height information of the vehicle such as altitude information.
  • the vehicle height information of the vehicle is included in the vehicle state information transmitted by the vehicle terminal device to the network side device. After the network side device acquires the geographic information of the vehicle, the location of the vehicle can be determined more accurately.
  • the vehicle terminal device may constitute a MAC data unit (PDU) to be transmitted through a Media Access Control (MAC) control unit (Control Elements, CE).
  • the physical uplink shared channel (PUSCH) is transmitted to the network side device.
  • the MAC CE can be combined with the Buffer Status Reporting (BSR) to form a MAC PDU.
  • BSR Buffer Status Reporting
  • the MAC PDU can also be combined with the uplink data in the LTE.
  • the MAC PDU can also be formed separately.
  • the network side device when the network side device allocates radio resources for the VDC to the vehicle according to the location information of the vehicle, a possible specific implementation manner is: the network side device can allocate the same time-frequency resource to the vehicle with a relatively long distance. In this way, resources can be fully utilized, and the effects of half-duplex and near-far effects can be eliminated.
  • the resource scheduling request sent by the vehicle terminal device to the network side device may include information that the vehicle needs to perform the service of the VDC.
  • the LTE protocol does not specify the corresponding Quality of Service (QoS) for D2D, and only the corresponding interface is specified.
  • the VDC requires QoS guarantee.
  • the specific QoS parameters may include the Vehicle QoS Class Identifier (VQCI), Allocation and Retention Priority (ARP), and the maximum bit rate of the message transmission (Maximum Bit Rate, MBR) and so on.
  • VQCI Vehicle QoS Class Identifier
  • ARP Allocation and Retention Priority
  • MBR Maximum Bit Rate
  • VQCI includes Message Size, Priority, Packet Generation Frequency, Latency, Example Service, and Packet Error Loss Rate (PELR). Wait.
  • PLR Packet Error Loss Rate
  • the service of the vehicle can be divided into a VDC service type and an LTE service type.
  • V2V communication a large number of communication between vehicles is satisfied, and strict delay requirements are required, and the QoS of the VDC service needs to be guaranteed.
  • LTE services or VDC services there may be LTE services or VDC services.
  • LTE emergency service such as emergency call voice
  • VDC emergency service such as event-triggered emergency service
  • VDC periodic service such as periodic message
  • the vehicle can be divided into two priority queues according to the service type: a priority queue of the VDC service and a priority queue of the LTE service. If the LTE service and the VDC service are included in the cell, the two services share the LTE control channel resources for radio resource communication, such as the physical downlink control channel (PDCCH) or the enhanced physical downlink control. Enhanced Physical Downlink Control Channel (EPDCCH).
  • PDCCH physical downlink control channel
  • EPDCCH Enhanced Physical Downlink Control Channel
  • a vehicle When a vehicle has both LTE services and VDC services, it can be classified according to service types, so that scheduling is performed according to different service type priorities.
  • the services of all vehicles are classified into emergency service queues and common service queues by type.
  • SA scheduling control
  • the time of generating the message of each vehicle is obtained, and the service in the emergency service queue is successively decremented according to the time of the message generation to form a priority queue of the emergency service.
  • the ordinary service queue is sorted according to the time when the message is generated from far to near, and then sequentially sorted to form a priority queue of the common service.
  • a control message can be sent to the vehicles corresponding to the services, that is, the information of the wireless resources is transmitted to the vehicle terminal devices of the vehicles.
  • the network side device can allocate wireless resources to the vehicle terminal device and send control messages in a variety of ways. One is to not transmit vehicle status information, and directly transmit a PDCCH control message to the vehicle terminal device according to a distributed method.
  • the specific implementation manner is as follows: the network side device roots in each SA period According to the order in which the vehicle terminal equipment requests resources (that is, according to the order in the foregoing service queue), the radio resource allocation of the VDC is performed, and then the PDCCH control message is sent to the vehicle terminal equipment to inform the vehicle terminal equipment of the radio resource information. That is, the policy is first allocated first, thereby saving the transmission delay of the VDC packet.
  • the network side device performs radio resource allocation of the VDC according to the order in which the three vehicle terminal devices request scheduling resources, and sends a corresponding PDCCH control message.
  • the network side device first updates the vehicle state information in a resource scheduling period, and then centrally allocates VDC radio resources to all the vehicle terminal devices by using multiplexing technology or partitioning (Zone) technology, so that Vehicles in different locations may use the same video resource, and then send the PDCCH control message to the vehicle terminal device in a centralized or distributed manner, so that the PDCCH control message can be fully utilized, and the number of vehicle terminal devices to be scheduled in the resource pool is increased. Save packet delay in VDC.
  • the centralized manner of sending the control message refers to: completing the vehicle state information update in a resource scheduling period including N downlink subframes, and then performing the Mth to Nth downlink subframes in the scheduling period to the vehicle terminal device.
  • the PDCCH control message is sent to save the packet transmission delay in the VDC.
  • the vehicle state information update of the vehicle corresponding to the service queue is completed in a resource scheduling period, and then the PDCCH control is sent in the Mth to the Nth downlink subframes in the resource scheduling period according to the number of the vehicle terminal devices. Message. For example, there are fewer scenes on the highway.
  • the network side device may send a control message to the vehicle terminal device in the Nth downlink subframe, that is, send a control message to the vehicle terminal device in the last downlink subframe in the scheduling period, so that the scheduling delay may be saved.
  • resource scheduling is performed for a larger number of vehicle terminal devices.
  • the distributed mode sending control message refers to: completing the vehicle state information update in a resource scheduling period, and then distributing the PDCCH control message distributed in the next resource scheduling period to increase the number of vehicles in the resource pool scheduling.
  • the vehicle state information update of the vehicle corresponding to the service queue is completed in a resource scheduling period, and then the PDCCH control message of each vehicle is sequentially sent by using the downlink subframe according to the priority of the traffic in the queue in the next resource scheduling period. For example, there are many scenes where vehicles are distributed in cities.
  • the service priority queue may also be sorted by using the vehicle state location information to form a priority queue sorted according to the location.
  • a timer may be set for each vehicle.
  • the timing of the timer may be set to 10 seconds by default, and may be modified when the timing is set. If the vehicle state information of the vehicle is not reported within the time range, the vehicle state information is invalid, and the traffic of the vehicle is directly placed behind the sorting queue.
  • the communication method of the embodiment of the present invention is described above with reference to FIG. 2 and FIG. 3.
  • the network side device and the vehicle terminal device according to the embodiment of the present invention are described below with reference to FIG. 4 to FIG.
  • FIG. 4 is a schematic structural diagram of a network side device 400 according to an embodiment of the present invention. It should be understood that the structure shown in FIG. 4 is only an example, and the network side device of the embodiment of the present invention may further include other modules or units, or include modules similar to those of the respective modules in FIG. 4, or not including FIG. 4. All modules in .
  • the network side device 400 includes a receiving module 410, an allocating module 420, and a transmitting module 430.
  • the modules of the network side device 400 may be physically separated modules or logically separated modules, which is not limited by the present invention.
  • the receiving module 410 is configured to receive a resource scheduling request sent by the at least one vehicle terminal device, where the resource scheduling request is used to request the network side device to allocate a vehicle direct communication VDC for the vehicle terminal device corresponding to the resource scheduling request.
  • Wireless resources
  • the receiving module 410 is further configured to receive vehicle state information sent by the at least one vehicle terminal device, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs.
  • the allocating module 420 is configured to allocate, for the at least one vehicle terminal device, a radio resource for the VDC according to the vehicle state information.
  • the sending module 430 is configured to send a control message to the at least one vehicle terminal device, where the control message carries information about a radio resource used by the vehicle terminal device corresponding to the control message for the VDC.
  • the network side device acquires vehicle state information of the vehicle, and then allocates a wireless resource for the VDC to the vehicle terminal device according to the location information of the vehicle carried in the vehicle state information. Therefore, the wireless resources can be reasonably utilized to improve the utilization of resources.
  • the allocating module 420 is specifically configured to: in the at least one vehicle terminal device, according to location information of the vehicle to which the at least one vehicle terminal device belongs Different vehicle terminal devices are assigned the same radio resources for the VDC.
  • the wireless resource is allocated to the vehicle terminal device according to the location information of the vehicle, for example, according to the location information of the vehicle, and the wireless resource is allocated to the vehicle terminal device by using a multiplexing technology or a ZONE technology, so that the location is different.
  • the vehicle terminal device of the location vehicle can use the same radio resource (or time-frequency resource), thereby achieving different resource utilization and eliminating the effects of the near-far effect.
  • the sending module 430 is specifically configured to: determine, according to location information of the vehicle to which the at least one vehicle terminal device belongs, a sequence of sending the control message to the at least one vehicle terminal device And transmitting the control message to the at least one vehicle terminal device in the stated order.
  • the sequence of sending the control message by the network side device to the vehicle terminal device may be determined according to the position information of the vehicle according to the position of the vehicle, and the control message may be sent according to the sequence, thereby reducing the use.
  • the receiving module 410 is specifically configured to: receive the vehicle state information sent by the at least one vehicle terminal device in a first scheduling period of the resource pool; the sending module 430 is specifically configured to: Transmitting, by the Mth to the Nth downlink subframes in the first scheduling period, a control message to the at least one vehicle terminal device, where the control message is carried in a physical downlink control channel PDCCH, in the first scheduling period Includes N downlink subframes, 1 ⁇ M ⁇ N.
  • the network side device first acquires vehicle state information of the vehicle in the same resource scheduling period, allocates VDC radio resources according to the vehicle state information, and then sends a control message in the last NM subframes to notify the vehicle terminal device.
  • the radio resource information of the VDC can save the scheduling delay of the VDC radio resource.
  • the receiving module 410 is specifically configured to: send a control message to the at least one vehicle terminal device in an Nth downlink subframe in a first scheduling period of the resource pool, so that the scheduling of saving VDC radio resources may be saved.
  • Time delay can also be used for resource scheduling of more vehicle terminal equipment.
  • the receiving module 410 is specifically configured to: receive the vehicle state information sent by the at least one vehicle terminal device in a first scheduling period of the resource pool; the sending module 430 is specifically configured to: The next scheduling period of the first scheduling period sends a control message to the at least one vehicle terminal device, where the control message is carried on the physical downlink control channel PDCCH.
  • the vehicle state information of the vehicle is acquired in the last resource scheduling period, Then, the VDC radio resource is allocated according to the vehicle state information, and then the control message is sent to the vehicle terminal device in the next resource scheduling period, so that the number of the vehicle terminal devices that can schedule the VDC radio resource can be increased.
  • the receiving module 410 is specifically configured to: receive, by using the at least one vehicle terminal device, a MAC that is sent by using the physical uplink shared channel (PUSCH) and carried in a medium access control MAC protocol data unit PDU. Vehicle status information in the control unit CE.
  • PUSCH physical uplink shared channel
  • PDU medium access control MAC protocol data unit
  • the vehicle terminal device forms a MAC PDU by means of a MAC CE, and is carried on the PUSCH to report to the network side device.
  • the modification of the existing protocol is relatively small, the vehicle status information can be reported flexibly, independently and accurately. And can also shorten the reporting delay.
  • the sending module 430 is further configured to: send configuration parameter information to the at least one vehicle terminal device, where the configuration parameter information is used to indicate a vehicle status sent by the at least one vehicle terminal device
  • the information needs to include the location information of the vehicle to which the vehicle terminal device belongs; wherein the receiving module 410 is specifically configured to: receive a vehicle state that is sent by each of the at least one vehicle terminal device according to the configuration parameter information.
  • Information, the vehicle status information includes location information of a vehicle to which the vehicle terminal device belongs.
  • the network side device sends configuration parameter information indicating the content of the vehicle state information to the vehicle terminal device, and then the vehicle terminal device can report the vehicle state information of the vehicle to the network side device according to the parameter configured by the network side device. In this way, the vehicle terminal device can flexibly report the state information of the vehicle according to the needs of the network side device.
  • the configuration parameter information is further used to indicate a period in which the at least one vehicle terminal device sends the vehicle state information, where the receiving module 410 is specifically configured to: receive the at least one vehicle terminal.
  • the vehicle terminal device can report the state information of the vehicle to the network vehicle device according to the period indicated in the configuration parameter sent by the network side device, so that the vehicle state information recorded on the network side device can be updated in time to make the network side
  • the device can more accurately allocate VDC radio resources to the vehicle terminal equipment based on the latest vehicle status information.
  • the configuration parameter information is further used to indicate a maximum number of bytes of vehicle state information that is sent by the at least one vehicle terminal device, where the receiving module 410 is specifically configured to: receive the Vehicle state information transmitted by the at least one vehicle terminal device according to the configuration parameter information, the vehicle state information including a location letter of a vehicle to which the vehicle terminal device belongs The number of bytes of the vehicle status information is less than or equal to the maximum number of bytes.
  • the network side device indicates the maximum number of bytes of the reported vehicle state information for the vehicle terminal device, and then the vehicle terminal device can report the vehicle state information according to the maximum number of bytes, thereby preventing the vehicle terminal device from transmitting more than the maximum. Loss of information caused by the number of bytes of vehicle status information.
  • the network side device further includes a determining module, configured to determine the maximum number of bytes according to a cell coverage of the network side device.
  • the maximum number of bytes of the vehicle state information is flexibly determined according to the coverage of the cell, and the resource carrying the vehicle state information can be reasonably utilized to improve the utilization rate of the resource carrying the vehicle state information.
  • the configuration parameter information is further used to indicate at least one of the vehicle state information that needs to include direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and altitude information of the vehicle.
  • the receiving module 410 is specifically configured to: receive the vehicle state information that is sent by the at least one vehicle terminal device according to the configuration parameter information, where the vehicle state information includes a location of a vehicle to which the vehicle terminal device belongs At least one of information and information of: direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and geographic height information of the vehicle.
  • the vehicle terminal device when the vehicle terminal device reports the speed information or the acceleration information of the vehicle according to the indication of the configuration parameter information of the network side device, the frequent switching problem caused by the vehicle terminal quickly exiting the cell can be reduced; when the direction information is reported, The network side device can determine the driving trajectory of the vehicle to perform an alert prompt between the vehicles; when the geographic height information is reported, the network side device can obtain more accurate location information of the vehicle.
  • FIG. 5 is a schematic configuration diagram of a vehicle terminal device 500 according to an embodiment of the present invention. It should be understood that the structure shown in FIG. 5 is only an example, and the vehicle terminal device of the embodiment of the present invention may further include other modules or units, or include modules similar to those of the respective modules in FIG. 5, or not including FIG. 5. All modules in .
  • the vehicle terminal device 500 includes a transmitting module 510 and a receiving module 520.
  • the modules of the vehicle terminal device 500 may be physically separated modules or logically separated modules, which is not limited by the present invention.
  • the sending module 510 is configured to send vehicle state information to the network side device, where the vehicle state information includes location information of the vehicle to which the vehicle terminal device belongs.
  • the sending module 510 is further configured to send a resource scheduling request to the network side device, where the resource scheduling request is used to request the network side device to allocate radio resource information for the vehicle direct communication VDC to the vehicle.
  • the receiving module 520 is configured to receive a control message sent by the network side device, where the control message carries the wireless resource information.
  • the vehicle terminal device reports the vehicle state information of the vehicle to the network side device, so that the network side device can allocate the wireless resource for the VDC to the vehicle terminal device according to the location information of the vehicle carried by the vehicle state information. Therefore, the wireless resources can be reasonably utilized to improve the utilization of resources.
  • the sending module 510 is specifically configured to: send, by using a MAC control unit CE in a medium access control MAC protocol data unit PDU on a physical uplink shared channel PUSCH, to the network side device. Vehicle status information.
  • the vehicle terminal device forms a MAC PDU by means of a MAC CE, and is carried on the PUSCH to report to the network side device.
  • the modification of the existing protocol is relatively small, the vehicle status information can be reported flexibly, independently and accurately. And can also shorten the reporting delay.
  • the receiving module 520 is further configured to: receive configuration parameter information sent by the network side device, where the configuration parameter information is used to indicate that the vehicle status information sent by the vehicle terminal device needs to include The location information of the vehicle to which the vehicle terminal device belongs; wherein the sending module 510 is specifically configured to: send the vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes The location information of the vehicle to which the vehicle terminal device belongs is described.
  • the vehicle terminal device can report the vehicle state information of the vehicle to the network side device according to the parameter configured by the network side device. In this way, the vehicle terminal device can flexibly report the state information of the vehicle according to the needs of the network side device.
  • the configuration parameter information is further used to indicate a period in which the vehicle terminal device sends the vehicle state information, where the sending module 510 is specifically configured to: according to the period, according to the The configuration parameter information is sent to the network side device, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs.
  • the vehicle terminal device can report the state information of the vehicle to the network vehicle device according to the period indicated in the configuration parameter sent by the network side device, so that the vehicle state information recorded on the network side device can be updated in time to make the network side
  • the device can be based on the latest vehicle status information.
  • the sending module 510 is specifically configured to: when the emergency occurs in the vehicle, send the vehicle state information to the network side device according to the configuration parameter information, where the vehicle The status information includes location information of the vehicle to which the vehicle terminal device belongs.
  • the vehicle terminal device can report the state information of the vehicle when the emergency event is sent in the vehicle, so that the emergency information can be Report the status information of the vehicle in a more timely manner.
  • the configuration parameter information is further used to indicate a maximum number of bytes of the vehicle state information that is sent by the vehicle terminal device, where the sending module 510 is specifically configured to: according to the configuration parameter The information transmits vehicle state information to the network side device, the vehicle state information including location information of the vehicle to which the vehicle terminal device belongs, and the number of bytes of the vehicle state information is less than or equal to the maximum number of bytes.
  • the vehicle terminal device can report the vehicle state information according to the maximum number of bytes configured by the network side device, so that the vehicle terminal device can avoid the loss of information caused by the vehicle state information exceeding the maximum number of bytes.
  • the receiving module 520 is specifically configured to: receive a physical downlink control channel PDCCH control message sent by the network side device, where the PDCCH control message carries a vehicle to which the vehicle terminal device belongs Radio resource information of the VDC.
  • the configuration parameter information is further used to indicate that the vehicle state information needs to include direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and the vehicle. At least one of the geographic height information, wherein the sending module 510 is specifically configured to: send vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes location information of the vehicle And at least one of the following information: direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and geographic height information of the vehicle.
  • the vehicle terminal device when the vehicle terminal device reports the speed information or the acceleration information of the vehicle according to the indication of the configuration parameter information of the network side device, the frequent switching problem caused by the vehicle terminal quickly exiting the cell can be reduced; when the direction information is reported, The network side device can determine the driving trajectory of the vehicle to perform an alert prompt between the vehicles; when the geographic height information is reported, the network side device can obtain more accurate location information of the vehicle.
  • FIG. 6 is a schematic structural diagram of a network side device 600 according to an embodiment of the present invention. It should be understood that Figure 6 The network side device 600 is capable of performing the various steps performed by the network side device in FIGS. 2 and 3, and the network side device 600 includes the memory 610, the processor 620, the receiver 630, and the transmitter 640.
  • the memory 610 is configured to store a program.
  • the receiver 630 is configured to receive a resource scheduling request sent by the at least one vehicle terminal device, where the resource scheduling request is used to request the network side device to allocate a vehicle direct communication VDC for the vehicle terminal device corresponding to the resource scheduling request.
  • Wireless resources
  • the receiver 630 is further configured to receive vehicle state information sent by the at least one vehicle terminal device, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs.
  • the processor 620 is configured to allocate, for the at least one vehicle terminal device, a radio resource for the VDC according to the vehicle state information.
  • the transmitter 640 is configured to send a control message to the at least one vehicle terminal device, where the control message carries information about a radio resource used by the vehicle terminal device for the VDC corresponding to the control message.
  • the network side device acquires vehicle state information of the vehicle, and then allocates a wireless resource for the VDC to the vehicle terminal device according to the location information of the vehicle carried in the vehicle state information. Therefore, the wireless resources can be reasonably utilized to improve the utilization of resources.
  • the processor 620 is specifically configured to: assign, according to location information of the vehicle to which the at least one vehicle terminal device belongs, different vehicle terminal devices in the at least one vehicle terminal device Radio resource for VDC.
  • the wireless resource is allocated to the vehicle terminal device according to the location information of the vehicle, for example, according to the location information of the vehicle, and the wireless resource is allocated to the vehicle terminal device by using a multiplexing technology or a ZONE technology, so that the location is different.
  • the vehicle terminal device of the location vehicle can use the same radio resource (or time-frequency resource), thereby achieving different resource utilization and eliminating the effects of the near-far effect.
  • the transmitter 640 is specifically configured to: determine, according to location information of the vehicle to which the at least one vehicle terminal device belongs, a sequence of sending the control message to the at least one vehicle terminal device And transmitting the control message to the at least one vehicle terminal device in the stated order.
  • the sequence of sending the control message by the network side device to the vehicle terminal device may be determined according to the position information of the vehicle according to the position of the vehicle, and the control message may be sent according to the sequence, thereby reducing the use.
  • the receiver 630 is specifically configured to: receive the vehicle state information sent by the at least one vehicle terminal device in a first scheduling period of the resource pool; the sending module 430 is specifically configured to: Transmitting, by the Mth to the Nth downlink subframes in the first scheduling period, a control message to the at least one vehicle terminal device, where the control message is carried in a physical downlink control channel PDCCH, in the first scheduling period Includes N downlink subframes, 1 ⁇ M ⁇ N.
  • the network side device first acquires vehicle state information of the vehicle in the same resource scheduling period, allocates VDC radio resources according to the vehicle state information, and then sends a control message in the last NM downlink subframes to notify the vehicle.
  • the radio resource information of the terminal device VDC can save the scheduling delay of the VDC radio resource.
  • the receiver 630 is specifically configured to: send a control message to the at least one vehicle terminal device in an Nth downlink subframe in a first scheduling period of the resource pool, so that the scheduling of the VDC radio resource may be saved.
  • Time delay can also be used for resource scheduling of more vehicle terminal equipment.
  • the receiver 630 is specifically configured to: receive the vehicle state information sent by the at least one vehicle terminal device in a first scheduling period of the resource pool; the transmitter 640 is specifically configured to: The next scheduling period of the first scheduling period sends a control message to the at least one vehicle terminal device, where the control message is carried on the physical downlink control channel PDCCH.
  • the vehicle state information of the vehicle is acquired in the last resource scheduling period, then the VDC radio resource is allocated according to the vehicle state information, and then the control message is sent to the vehicle terminal device in the next resource scheduling period, thereby increasing the schedulable VDC wireless.
  • the number of vehicle terminal equipment for the resource is increased.
  • the receiver 630 is specifically configured to: receive, by the at least one vehicle terminal device, a MAC that is sent by using the physical uplink shared channel (PUSCH) and carried in a medium access control MAC protocol data unit PDU. Vehicle status information in the control unit CE.
  • PUSCH physical uplink shared channel
  • PDU medium access control MAC protocol data unit
  • the vehicle terminal device forms a MAC PDU by means of a MAC CE, and is carried on the PUSCH to report to the network side device.
  • the modification of the existing protocol is relatively small, the vehicle status information can be reported flexibly, independently and accurately. And can also shorten the reporting delay.
  • the transmitter 640 is further configured to: send configuration parameter information to the at least one vehicle terminal device, where the configuration parameter information is used to indicate a vehicle status sent by the at least one vehicle terminal device
  • the information needs to include the location information of the vehicle to which the vehicle terminal device belongs; wherein the receiver 630 is specifically configured to: receive a vehicle state that is sent by each of the at least one vehicle terminal device according to the configuration parameter information.
  • Information, the car The vehicle status information includes location information of the vehicle to which the vehicle terminal device belongs.
  • the network side device sends configuration parameter information indicating the content of the vehicle state information to the vehicle terminal device, and then the vehicle terminal device can report the vehicle state information of the vehicle to the network side device according to the parameter configured by the network side device. In this way, the vehicle terminal device can flexibly report the state information of the vehicle according to the needs of the network side device.
  • the configuration parameter information is further used to indicate a period in which the at least one vehicle terminal device sends the vehicle state information, where the receiver 630 is specifically configured to: receive the at least one vehicle terminal.
  • the vehicle terminal device can report the state information of the vehicle to the network vehicle device according to the period indicated in the configuration parameter sent by the network side device, so that the vehicle state information recorded on the network side device can be updated in time to make the network side
  • the device can more accurately allocate VDC radio resources to the vehicle terminal equipment based on the latest vehicle status information.
  • the configuration parameter information is further used to indicate a maximum number of bytes of vehicle state information sent by the at least one vehicle terminal device
  • the receiver 630 is specifically configured to: receive the Vehicle state information transmitted by the at least one vehicle terminal device according to the configuration parameter information, the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs, and the number of bytes of the vehicle state information is less than or equal to the maximum The number of bytes.
  • the network side device indicates the maximum number of bytes of the reported vehicle state information for the vehicle terminal device, and then the vehicle terminal device can report the vehicle state information according to the maximum number of bytes, thereby preventing the vehicle terminal device from transmitting more than the maximum. Loss of information caused by the number of bytes of vehicle status information.
  • the processor 620 is further configured to determine the maximum number of bytes according to a cell coverage of the network side device.
  • the maximum number of bytes of the vehicle state information is flexibly determined according to the coverage of the cell, and the resource carrying the vehicle state information can be reasonably utilized to improve the utilization rate of the resource carrying the vehicle state information.
  • the configuration parameter information is further used to indicate at least one of the vehicle state information that needs to include direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and altitude information of the vehicle.
  • the receiver 630 is specifically configured to: receive the vehicle state information that is sent by the at least one vehicle terminal device according to the configuration parameter information, where The vehicle state information includes at least one of position information of the vehicle to which the vehicle terminal device belongs and information of: direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and the vehicle Geographical height information.
  • the vehicle terminal device when the vehicle terminal device reports the speed information or the acceleration information of the vehicle according to the indication of the configuration parameter information of the network side device, the frequent switching problem caused by the vehicle terminal quickly exiting the cell can be reduced; when the direction information is reported, The network side device can determine the driving trajectory of the vehicle to perform an alert prompt between the vehicles; when the geographic height information is reported, the network side device can obtain more accurate location information of the vehicle.
  • FIG. 7 is a schematic configuration diagram of a vehicle terminal device 700 according to an embodiment of the present invention. It should be understood that the vehicle terminal device 700 of FIG. 7 is capable of performing the various steps performed by the vehicle terminal device of FIGS. 2 and 3, and the vehicle terminal device 700 includes a memory 710, a processor 720, a receiver 730, and a transmitter 740.
  • the memory 710 is configured to store a program.
  • the processor 720 is configured to execute a program stored in the memory 710, and the receiver 730 and the transmitter 740 are implemented to implement the program.
  • the transmitter 740 is configured to send vehicle state information to the network side device, where the vehicle state information includes location information of the vehicle to which the vehicle terminal device belongs.
  • the transmitter 740 is further configured to send a resource scheduling request to the network side device, where the resource scheduling request is used to request the network side device to allocate radio resource information for the vehicle direct communication VDC to the vehicle.
  • the receiver 730 is configured to receive a control message sent by the network side device, where the control message carries the radio resource information.
  • the vehicle terminal device reports the vehicle state information of the vehicle to the network side device, so that the network side device can allocate the wireless resource for the VDC to the vehicle terminal device according to the location information of the vehicle carried by the vehicle state information. Therefore, the wireless resources can be reasonably utilized to improve the utilization of resources.
  • the transmitter 740 is specifically configured to: send, by using a MAC control unit CE in a medium access control MAC protocol data unit PDU on a physical uplink shared channel PUSCH, to the network side device. Vehicle status information.
  • the vehicle terminal device forms a MAC PDU by means of a MAC CE, and the bearer is reported on the PUSCH to the network side device, and when the modification of the existing protocol is relatively small, Report vehicle status information flexibly, independently and accurately, and reduce reporting delays.
  • the receiver 730 is further configured to: receive configuration parameter information sent by the network side device, where the configuration parameter information is used to indicate that the vehicle status information sent by the vehicle terminal device needs to include The location information of the vehicle to which the vehicle terminal device belongs; wherein the transmitter 740 is specifically configured to: send the vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes The location information of the vehicle to which the vehicle terminal device belongs is described.
  • the vehicle terminal device can report the vehicle state information of the vehicle to the network side device according to the parameter configured by the network side device. In this way, the vehicle terminal device can flexibly report the state information of the vehicle according to the needs of the network side device.
  • the configuration parameter information is further used to indicate a period in which the vehicle terminal device sends the vehicle state information, where the transmitter 740 is specifically configured to: according to the period, according to the The configuration parameter information is sent to the network side device, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs.
  • the vehicle terminal device can report the state information of the vehicle to the network vehicle device according to the period indicated in the configuration parameter sent by the network side device, so that the vehicle state information recorded on the network side device can be updated in time to make the network side
  • the device can more accurately allocate VDC radio resources to the vehicle terminal equipment based on the latest vehicle status information.
  • the transmitter 740 is specifically configured to: when the emergency occurs in the vehicle, send the vehicle state information to the network side device according to the configuration parameter information, where the vehicle The status information includes location information of the vehicle to which the vehicle terminal device belongs.
  • the vehicle terminal device can report the state information of the vehicle when the emergency event is sent in the vehicle, so that the emergency information can be Report the status information of the vehicle in a more timely manner.
  • the configuration parameter information is further used to indicate a maximum number of bytes of vehicle state information that is sent by the vehicle terminal device, where the transmitter 740 is specifically configured to: according to the configuration parameter The information transmits vehicle state information to the network side device, the vehicle state information including location information of the vehicle to which the vehicle terminal device belongs, and the number of bytes of the vehicle state information is less than or equal to the maximum number of bytes.
  • the vehicle terminal device can report the vehicle state information according to the maximum number of bytes configured by the network side device, so that the vehicle terminal device can be prevented from transmitting the vehicle exceeding the maximum number of bytes. Loss of information caused by status information.
  • the receiver 730 is specifically configured to: receive a physical downlink control channel PDCCH control message sent by the network side device, where the PDCCH control message carries a vehicle to which the vehicle terminal device belongs Radio resource information of the VDC.
  • the configuration parameter information is further used to indicate that the vehicle state information needs to include direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and the vehicle. At least one of the geographic height information; the transmitter 740 is specifically configured to: send vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes location information of the vehicle And at least one of the following information: direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and geographic height information of the vehicle.
  • the vehicle terminal device when the vehicle terminal device reports the speed information or the acceleration information of the vehicle according to the indication of the configuration parameter information of the network side device, the frequent switching problem caused by the vehicle terminal quickly exiting the cell can be reduced; when the direction information is reported, The network side device can determine the driving trajectory of the vehicle to perform an alert prompt between the vehicles; when the geographic height information is reported, the network side device can obtain more accurate location information of the vehicle.
  • the disclosed systems, devices, and methods 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.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used 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. .

Abstract

Provided in the present invention are a communication method, a network side device, and a vehicle terminal device. In a communication method, a network side device receives a resource scheduling request sent by at least one vehicle terminal device, the resource scheduling request being used for requesting the network side device to allocate a wireless resource for a VDC to the vehicle terminal device, corresponding to the resource scheduling request; the network side device receives vehicle state information sent by the at least one vehicle terminal device, the vehicle state information comprising location information of the vehicle corresponding to the vehicle state information; the network side device allocates, according to the vehicle state information, the wireless resource for the VDC to the at least one vehicle terminal device; and the network side device sends a control message to the at least one vehicle terminal device, the control message carrying information on the wireless resource of the corresponding vehicle terminal device for the VDC. The communication method of the present invention can improve the utilization of wireless resources for the VDC and the reliability of network performance.

Description

通信方法、网络侧设备和车辆终端设备Communication method, network side device, and vehicle terminal device 技术领域Technical field
本发明涉及通信领域,尤其涉及一种通信方法、网络侧设备和车辆终端设备。The present invention relates to the field of communications, and in particular, to a communication method, a network side device, and a vehicle terminal device.
背景技术Background technique
车辆直接通信(Vehicle Direct Communication,VDC)是指车辆间通过移动通信设备直接进行通信,如互相传送车辆的速度、位置、驾驶方向、刹车等信息。Vehicle Direct Communication (VDC) refers to the direct communication between vehicles through mobile communication devices, such as the speed, position, driving direction, and braking information of the vehicle.
车辆到车辆(Vehicle to Vehicle,V2V)通信系统中,车辆终端间进行通信可以无需网络侧设备的中转,可直接进行通信,网络侧设备可以进行资源的配置、调度、协调等,辅助终端之间进行直接通信。当网络侧为车辆终端配置无线参数和资源调度时,车辆终端需要向网络侧设备(如基站)发送资源调度请求,请求网络侧设备为其分配VDC无线资源。网络侧设备接收到车辆终端的请求后,为车辆终端分配VDC无线资源,并将分配好的该无线资源的信息发送给车辆终端。车辆终端获取到无线资源的信息后,可以利用该无线资源向其他车辆发送信息。In a vehicle-to-vehicle (V2V) communication system, communication between vehicle terminals can be performed without communication of the network-side devices, and the network-side devices can perform resource configuration, scheduling, coordination, etc., between the auxiliary terminals. Direct communication. When the network side configures the wireless parameter and the resource scheduling for the vehicle terminal, the vehicle terminal needs to send a resource scheduling request to the network side device (such as the base station), and requests the network side device to allocate the VDC wireless resource thereto. After receiving the request from the vehicle terminal, the network side device allocates a VDC radio resource to the vehicle terminal, and transmits the allocated information of the radio resource to the vehicle terminal. After the vehicle terminal acquires the information of the wireless resource, the wireless terminal can use the wireless resource to send information to other vehicles.
车辆终端之间进行VDC时,若不同的车辆使用相同时频的资源或者不同的时频资源时,则可能会产生远近效应等影响。现有技术中,为了避免远近效应等影响,一种实现方式是网络侧设备为不同的车辆终端分配不同VDC无线资源,但这样会导致无线资源的浪费,即降低无线资源的利用率。When VDC is performed between vehicle terminals, if different vehicles use the same time-frequency resources or different time-frequency resources, the effects of the near-far effect may occur. In the prior art, in order to avoid the effects of the near-far effect, one implementation manner is that the network-side device allocates different VDC radio resources to different vehicle terminals, but this may result in waste of radio resources, that is, reduce utilization of radio resources.
发明内容Summary of the invention
本发明提供了一种通信方法、网络侧设备和车辆终端设备,能够提高VDC的无线资源的利用率。The present invention provides a communication method, a network side device, and a vehicle terminal device, which can improve the utilization of wireless resources of a VDC.
第一方面,本发明提供了一种通信方法,包括:网络侧设备接收至少一个车辆终端设备发送的资源调度请求,所述资源调度请求用于请求所述网络侧设备为所述资源调度请求对应的车辆终端设备分配用于车辆直接通信VDC的无线资源;所述网络侧设备接收所述至少一个车辆终端设备发送的车辆状态信息,所述车辆状态信息包括所述车辆状态信息对应的车辆的位置 信息;所述网络侧设备根据所述车辆状态信息为所述至少一个车辆终端设备分配用于VDC的无线资源;所述网络侧设备向所述至少一个车辆终端设备发送控制消息,所述控制消息携带所述控制消息对应的车辆终端设备用于VDC的无线资源的信息。In a first aspect, the present invention provides a communication method, including: a network side device receiving a resource scheduling request sent by at least one vehicle terminal device, where the resource scheduling request is used to request the network side device to correspond to the resource scheduling request Vehicle terminal device allocates radio resources for vehicle direct communication VDC; the network side device receives vehicle state information transmitted by the at least one vehicle terminal device, the vehicle state information including a location of the vehicle corresponding to the vehicle state information Information; the network side device allocates a radio resource for the VDC to the at least one vehicle terminal device according to the vehicle state information; the network side device sends a control message to the at least one vehicle terminal device, the control message And carrying information about the radio resource of the VDC by the vehicle terminal device corresponding to the control message.
本发明实施例的通信方法,网络侧设备获取车辆的车辆状态信息,然后根据车辆状态信息中携带了车辆的位置信息为车辆终端设备分配用于VDC的无线资源。从而可以合理地利用无线资源,提高资源的利用率。In the communication method of the embodiment of the present invention, the network side device acquires vehicle state information of the vehicle, and then allocates a wireless resource for the VDC to the vehicle terminal device according to the location information of the vehicle carried in the vehicle state information. Therefore, the wireless resources can be reasonably utilized to improve the utilization of resources.
在一种可能的实现方式中,所述网络侧设备根据所述车辆状态信息为所述至少一个车辆终端设备分配用于VDC的无线资源,包括:所述网络侧设备根据所述至少一个车辆终端设备所属的车辆的位置信息,为所述至少一个车辆终端设备中不同的车辆终端设备分配相同的用于VDC的无线资源。In a possible implementation, the network side device allocates radio resources for the VDC to the at least one vehicle terminal device according to the vehicle state information, including: the network side device according to the at least one vehicle terminal The location information of the vehicle to which the device belongs is assigned to the same wireless terminal resource for the VDC for different vehicle terminal devices in the at least one vehicle terminal device.
本发明实施例的通信方法中,根据车辆的位置信息为车辆终端设备分配无线资源,如根据车辆的位置信息,并利用复用技术或划分区域(ZONE)技术等为车辆终端设备分配无线资源,使得位于不同位置的车辆的车辆终端设备可以使用相同的无线资源(或时频资源),从而实现提高资源利用率的不同,还能减少VDC发送时延和消除远近效应等影响。In the communication method of the embodiment of the present invention, the wireless resource is allocated to the vehicle terminal device according to the location information of the vehicle, for example, according to the location information of the vehicle, and the wireless resource is allocated to the vehicle terminal device by using a multiplexing technology or a ZONE technology. The vehicle terminal devices of the vehicles located at different locations can use the same radio resources (or time-frequency resources), thereby achieving different resource utilization differences, and also reducing the effects of VDC transmission delay and eliminating near-far effects.
在一种可能的实现方式中,所述网络侧设备向所述至少一个车辆终端设备发送控制消息,包括:所述网络侧设备根据所述至少一个车辆终端设备所属的车辆的位置信息,确定向所述至少一个车辆终端设备发送所述控制消息的先后顺序;所述网络侧设备按照所述先后顺序向所述至少一个车辆终端设备发送所述控制消息。In a possible implementation manner, the network side device sends a control message to the at least one vehicle terminal device, where the network side device determines, according to the location information of the vehicle to which the at least one vehicle terminal device belongs The sequence in which the at least one vehicle terminal device sends the control message; the network side device sends the control message to the at least one vehicle terminal device according to the sequence.
本发明实施例的通信方法中,可以根据车辆的位置信息按照车辆的位置从进至远的顺序确定网络侧设备向车辆终端设备发送控制消息的先后顺序,并按照该先后顺序发送控制消息,从而可以减低用于VDC的无线资源的调度时延。In the communication method of the embodiment of the present invention, the sequence of the network side device transmitting the control message to the vehicle terminal device may be determined according to the position information of the vehicle according to the position of the vehicle, and the control message is sent according to the sequence. The scheduling delay of the radio resources for the VDC can be reduced.
在一种可能的实现方式中,所述网络侧设备接收所述至少一个车辆终端设备发送的车辆状态信息,包括:所述网络侧设备在资源池的第一调度周期内接收所述至少一个车辆终端设备发送的车辆状态信息;所述网络侧设备向所述至少一个车辆终端设备发送控制消息,包括:所述网络侧设备在所述第一调度周期内的第M个至第N个下行子帧向所述至少一个车辆终端设备发送控制消息,所述控制消息承载于物理下行控制信道PDCCH,所述第一调 度周期内包括N个下行子帧,1≤M≤N。In a possible implementation manner, the network side device receiving the vehicle state information sent by the at least one vehicle terminal device includes: the network side device receiving the at least one vehicle in a first scheduling period of the resource pool The vehicle status information sent by the terminal device; the network side device sending the control message to the at least one vehicle terminal device, where the network side device is in the Mth to Nth downlink sub-times in the first scheduling period Sending, by the frame, a control message to the at least one vehicle terminal device, where the control message is carried on a physical downlink control channel PDCCH, the first tone The N period includes N downlink subframes, 1 ≤ M ≤ N.
本发明实施例的通信方法中,网络侧设备在同一个资源调度周期内先获取车辆的车辆状态信息,根据这些车辆状态信息分配VDC无线资源后,再在最后N-M个下行子帧发送控制消息,以告知车辆终端设备VDC的无线资源信息,从而可以节省VDC无线资源的调度时延。In the communication method of the embodiment of the present invention, the network side device first acquires vehicle state information of the vehicle in the same resource scheduling period, allocates VDC radio resources according to the vehicle state information, and then sends a control message in the last NM downlink subframes. In order to inform the vehicle terminal device VDC of the radio resource information, the scheduling delay of the VDC radio resource can be saved.
在一种可能的方式中,网络侧设备可以在第N个下行子帧向车辆终端设备发送控制消息,从而可以在节省调度时延的同时,为更多数量的车辆终端时设备进行资源调度。In a possible manner, the network side device may send a control message to the vehicle terminal device in the Nth downlink subframe, so that the device may perform resource scheduling for a larger number of vehicle terminals while saving the scheduling delay.
在一种可能的实现方式中,所述网络侧设备接收所述至少一个车辆终端设备发送的车辆状态信息,包括:所述网络侧设备在资源池的第一调度周期内接收所述至少一个车辆终端设备发送的车辆状态信息;所述网络侧设备所述向所述至少一个车辆终端设备发送控制消息,包括:所述网络侧设备在所述第一调度周期的下一个调度周期向所述至少一个车辆终端设备发送控制消息,所述控制消息承载于PDCCH。In a possible implementation manner, the network side device receiving the vehicle state information sent by the at least one vehicle terminal device includes: the network side device receiving the at least one vehicle in a first scheduling period of the resource pool The vehicle status information sent by the terminal device; the network side device sending the control message to the at least one vehicle terminal device, the network side device to the at least one scheduling period of the first scheduling period to the at least one A vehicle terminal device transmits a control message, and the control message is carried on the PDCCH.
本发明实施例的通信方法中,在上一个资源调度周期获取车辆的车辆状态信息,然后根据车辆状态信息分配VDC无线资源,再在下一个资源调度周期向车辆终端设备发送控制消息,从而可以增加可调度VDC无线资源的车辆终端设备的数量。In the communication method of the embodiment of the present invention, the vehicle state information of the vehicle is acquired in the last resource scheduling period, and then the VDC radio resource is allocated according to the vehicle state information, and then the control message is sent to the vehicle terminal device in the next resource scheduling period, thereby increasing the The number of vehicle terminal devices that schedule VDC radio resources.
在一种可能的实现方式中,所述网络侧设备接收所述至少一个车辆终端设备发送的车辆状态信息,包括:所述网络侧设备接收所述至少一个车辆终端设备在物理上行共享信道PUSCH上发送的、携带于媒体接入控制MAC协议数据单元PDU中的MAC控制单元CE中的车辆状态信息。In a possible implementation manner, the network side device receiving the vehicle state information sent by the at least one vehicle terminal device includes: the network side device receiving the at least one vehicle terminal device on a physical uplink shared channel PUSCH The transmitted vehicle state information carried in the MAC Control Unit CE in the Medium Access Control MAC Protocol Data Unit PDU.
本发明实施例的通信方法,车辆终端设备通过MAC CE方式组成MAC PDU,并承载在PUSCH向网络侧设备上报,在对现有协议修改比较小的情况下,可以灵活、独立及精准地上报车辆状态信息,而且还可以缩短上报时延。In the communication method of the embodiment of the present invention, the vehicle terminal device forms a MAC PDU by means of a MAC CE, and is carried on the PUSCH to report to the network side device, and can report the vehicle flexibly, independently, and accurately in a case where the existing protocol modification is relatively small. Status information, and can also reduce reporting delays.
在一种可能的实现方式中,在所述网络侧设备接收至少一个车辆终端设备发送的车辆状态信息之前,所述通信方法还包括:所述网络侧设备向所述至少一个车辆终端设备发送配置参数信息,所述配置参数信息用于指示所述至少一个车辆终端设备发送的车辆状态信息需要包括所述车辆终端设备所属的车辆的位置信息;其中,所述网络侧设备接收至少一个车辆终端设备发 送的车辆状态信息,包括:所述网络侧设备接收所述至少一个车辆终端设备中每个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。In a possible implementation, before the network side device receives the vehicle state information sent by the at least one vehicle terminal device, the communication method further includes: the network side device transmitting the configuration to the at least one vehicle terminal device Parameter information, the configuration parameter information is used to indicate that the vehicle state information sent by the at least one vehicle terminal device needs to include location information of a vehicle to which the vehicle terminal device belongs; wherein the network side device receives at least one vehicle terminal device hair The vehicle state information sent includes: the network side device receiving vehicle state information transmitted by each of the at least one vehicle terminal device according to the configuration parameter information, wherein the vehicle state information includes the vehicle terminal device Location information of the vehicle to which it belongs.
本发明实施例中,网络侧设备为车辆终端设备发送指示车辆状态信息的内容的配置参数信息,然后车辆终端设备能够根据网络侧设备配置的参数向网络侧设备上报车辆的车辆状态信息。这样车辆终端设备可以灵活地根据网络侧设备的需要上报车辆的状态信息。In the embodiment of the present invention, the network side device sends configuration parameter information indicating the content of the vehicle state information to the vehicle terminal device, and then the vehicle terminal device can report the vehicle state information of the vehicle to the network side device according to the parameter configured by the network side device. In this way, the vehicle terminal device can flexibly report the state information of the vehicle according to the needs of the network side device.
在一种可能的实现方式中,所述配置参数信息还用于指示所述至少一个车辆终端设备发送车辆状态信息的周期;其中,所述网络侧设备接收所述至少一个车辆终端设备中每个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息,包括:所述网络侧设备接收所述至少一个车辆终端设备按照所述周期发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所述的车辆的位置信息。In a possible implementation manner, the configuration parameter information is further used to indicate a period in which the at least one vehicle terminal device sends vehicle state information; wherein the network side device receives each of the at least one vehicle terminal device The vehicle terminal device transmits the vehicle state information according to the configuration parameter information, where the vehicle state information includes location information of the vehicle to which the vehicle terminal device belongs, and the network side device receives the at least one vehicle terminal device according to the location The vehicle status information transmitted periodically, the vehicle status information including location information of the vehicle described by the vehicle terminal device.
本发明实施例的通信方法中,车辆终端设备可以根据网络侧设备发送的配置参数中指示的周期向网络车设备上报车辆的状态信息,从而可以及时更新网络侧设备上记录的车辆状态信息,以使得网络侧设备可以根据最新车辆状态信息更准确地为车辆终端设备分配VDC无线资源。In the communication method of the embodiment of the present invention, the vehicle terminal device can report the state information of the vehicle to the network vehicle device according to the period indicated in the configuration parameter sent by the network side device, so that the vehicle state information recorded on the network side device can be updated in time, The network side device is enabled to more accurately allocate VDC radio resources to the vehicle terminal device according to the latest vehicle status information.
在一种可能的实现方式中,所述配置参数信息还用于指示所述至少一个车辆终端设备发送的车辆状态信息的最大字节数;其中,所述网络侧设备接收所述至少一个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备对应的车辆的位置信息,包括:所述网络侧设备接收所述至少一个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息,所述车辆状态信息的字节数小于或等于所述最大字节数。In a possible implementation manner, the configuration parameter information is further used to indicate a maximum number of bytes of vehicle state information sent by the at least one vehicle terminal device; wherein the network side device receives the at least one vehicle terminal The vehicle state information sent by the device according to the configuration parameter information, the vehicle state information including location information of the vehicle corresponding to the vehicle terminal device, including: the network side device receiving the at least one vehicle terminal device according to the configuration Vehicle state information transmitted by the parameter information, the vehicle state information including location information of the vehicle to which the vehicle terminal device belongs, the number of bytes of the vehicle state information being less than or equal to the maximum number of bytes.
本发明实施例的通信方法中,网络侧设备为车辆终端设备指示上报的车辆状态信息的字节数,然后车辆终端设备可以根据该字节数上报车辆状态信息,从而可以避免车辆终端设备发送超过该字节数的车辆状态信息而造成上报资源浪费问题。。In the communication method of the embodiment of the present invention, the network side device indicates the number of bytes of the reported vehicle state information for the vehicle terminal device, and then the vehicle terminal device can report the vehicle state information according to the number of bytes, thereby preventing the vehicle terminal device from transmitting more than The number of bytes of vehicle status information causes a problem of wasted resources. .
在一种可能的实现方式中,所述网络侧设备根据所述网络侧设备的小区覆盖范围确定所述最大字节数。 In a possible implementation manner, the network side device determines the maximum number of bytes according to a cell coverage of the network side device.
本发明实施例的通信方法中,根据小区覆盖范围灵活确定车辆状态信息的最大字节数,可以合理利用携带车辆状态信息的资源,提高携带车辆状态信息的资源的利用率。In the communication method of the embodiment of the present invention, the maximum number of bytes of the vehicle state information is flexibly determined according to the coverage of the cell, and the resource carrying the vehicle state information can be reasonably utilized to improve the utilization rate of the resource carrying the vehicle state information.
在一种可能的实现方式中,所述配置参数信息还用于指示所述车辆状态信息中需要包含车辆的方向信息、车辆的速度信息、车辆的加速度信息和车辆所在海拔信息中的至少一种;其中,所述网络侧设备接收所述至少一个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备对应的位置信息,包括:所述网络侧设备接收所述至少一个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息和以下信息中的至少一种:所述车辆的方向信息、所述车辆的速度信息、所述车辆的加速度信息和所述车辆的地理高度信息。In a possible implementation, the configuration parameter information is further used to indicate at least one of the vehicle state information that needs to include direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and altitude information of the vehicle. The network side device receives vehicle state information that is sent by the at least one vehicle terminal device according to the configuration parameter information, where the vehicle state information includes location information corresponding to the vehicle terminal device, including: the network side Receiving, by the device, vehicle state information transmitted by the at least one vehicle terminal device according to the configuration parameter information, the vehicle state information including at least one of location information of a vehicle to which the vehicle terminal device belongs and information: the vehicle Direction information, speed information of the vehicle, acceleration information of the vehicle, and geographic height information of the vehicle.
本发明实施例的通信方法中,车辆终端设备根据网络侧设备的配置参数信息的指示上报车辆的速度信息或加速度信息时,可以降低车辆终端快速驶出小区带来的频繁切换问题;上报方向信息时,可以使得网络侧设备能够判断车辆的行驶轨迹,以进行车辆间的预警提示;上报地理高度信息时,可以使得网络侧设备能够获取车辆更准确的位置信息。In the communication method of the embodiment of the present invention, when the vehicle terminal device reports the speed information or the acceleration information of the vehicle according to the indication of the configuration parameter information of the network side device, the frequent switching problem caused by the vehicle terminal quickly exiting the cell can be reduced; the reporting direction information is reported. When the network side device can determine the driving trajectory of the vehicle to perform the warning prompt between the vehicles, when the geographic height information is reported, the network side device can obtain more accurate position information of the vehicle.
第二方面,本发明提供了一种通信方法,包括:车辆终端设备向网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息;所述车辆终端设备向所述网络侧设备发送资源调度请求,所述资源调度请求用于请求所述网络侧设备为所述车辆分配用于车辆直接通信VDC的无线资源信息;所述车辆终端设备接收所述网络侧设备发送的控制消息,所述控制消息携带所述无线资源信息。In a second aspect, the present invention provides a communication method, including: a vehicle terminal device transmitting vehicle state information to a network side device, the vehicle state information including location information of a vehicle to which the vehicle terminal device belongs; the vehicle terminal device Transmitting, to the network side device, a resource scheduling request, where the resource scheduling request is used to request the network side device to allocate radio resource information for a vehicle direct communication VDC to the vehicle; and the vehicle terminal device receives the network side A control message sent by the device, where the control message carries the radio resource information.
本发明实施例的通信方法,车辆终端设备向网络侧设备上报车辆的车辆状态信息,以使得网络侧设备可以根据车辆状态信息携带地车辆的位置信息为车辆终端设备分配用于VDC的无线资源。从而可以合理地利用无线资源,提高资源的利用率。In the communication method of the embodiment of the present invention, the vehicle terminal device reports the vehicle state information of the vehicle to the network side device, so that the network side device can allocate the wireless resource for the VDC to the vehicle terminal device according to the location information of the vehicle carried by the vehicle state information. Therefore, the wireless resources can be reasonably utilized to improve the utilization of resources.
在一种可能的实现方式中,所述车辆终端设备向网络侧设备发送车辆状态信息,包括:所述车辆终端设备通过物理上行共享信道PUSCH上的媒体接入控制MAC协议数据单元PDU中的MAC控制单元CE向所述网络侧设备发送所述车辆状态信息。 In a possible implementation, the vehicle terminal device sends the vehicle state information to the network side device, including: the vehicle terminal device controls the MAC in the MAC protocol data unit PDU through the media access on the physical uplink shared channel PUSCH. The control unit CE transmits the vehicle status information to the network side device.
本发明实施例的通信方法,车辆终端设备通过MAC CE方式组成MAC PDU,并承载在PUSCH向网络侧设备上报,在对现有协议修改比较小的情况下,可以灵活、独立及精准地上报车辆状态信息,而且还可以缩短上报时延。In the communication method of the embodiment of the present invention, the vehicle terminal device forms a MAC PDU by means of a MAC CE, and is carried on the PUSCH to report to the network side device, and can report the vehicle flexibly, independently, and accurately in a case where the existing protocol modification is relatively small. Status information, and can also reduce reporting delays.
在一种可能的实现方式中,在所述车辆终端设备向网络侧设备发送车辆状态信息之前,所述通信方法还包括:所述车辆终端设备接收所述网络侧设备发送的配置参数信息,所述配置参数信息用于指示所述车辆终端设备发送的车辆状态信息需要包括所述车辆终端设备所属的车辆的位置信息;其中,所述车辆终端设备向所述网络侧设备发送车辆状态信息,包括:所述车辆终端设备根据所述配置参数信息,向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。In a possible implementation, before the vehicle terminal device sends the vehicle state information to the network side device, the communication method further includes: the vehicle terminal device receiving the configuration parameter information sent by the network side device, where The configuration parameter information is used to indicate that the vehicle state information transmitted by the vehicle terminal device needs to include location information of a vehicle to which the vehicle terminal device belongs; wherein the vehicle terminal device sends vehicle state information to the network side device, including The vehicle terminal device transmits the vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs.
本发明实施例中,车辆终端设备能够根据网络侧设备配置的参数向网络侧设备上报车辆的车辆状态信息。这样车辆终端设备可以灵活地根据网络侧设备的需要上报车辆的状态信息。In the embodiment of the present invention, the vehicle terminal device can report the vehicle state information of the vehicle to the network side device according to the parameter configured by the network side device. In this way, the vehicle terminal device can flexibly report the state information of the vehicle according to the needs of the network side device.
在一种可能的实现方式中,所述配置参数信息还用于指示所述车辆终端设备发送所述车辆状态信息的周期;其中,所述车辆终端设备根据所述配置参数信息向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息,包括:所述车辆终端设备按照所述周期,根据所述配置参数信息,向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。In a possible implementation manner, the configuration parameter information is further used to indicate a period in which the vehicle terminal device sends the vehicle state information, where the vehicle terminal device sends the vehicle terminal device to the network side according to the configuration parameter information. The device sends the vehicle status information, where the vehicle status information includes location information of the vehicle to which the vehicle terminal device belongs, including: the vehicle terminal device according to the period, according to the configuration parameter information, to the network side The device transmits the vehicle status information, the vehicle status information including location information of a vehicle to which the vehicle terminal device belongs.
本发明实施例的通信方法中,车辆终端设备可以根据网络侧设备发送的配置参数中指示的周期向网络车设备上报车辆的状态信息,从而可以及时更新网络侧设备上记录的车辆状态信息,以使得网络侧设备可以根据最新车辆状态信息更准确地为车辆终端设备分配VDC无线资源。In the communication method of the embodiment of the present invention, the vehicle terminal device can report the state information of the vehicle to the network vehicle device according to the period indicated in the configuration parameter sent by the network side device, so that the vehicle state information recorded on the network side device can be updated in time, The network side device is enabled to more accurately allocate VDC radio resources to the vehicle terminal device according to the latest vehicle status information.
在一种可能的实现方式中,所述车辆终端设备根据所述配置参数信息,向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息,包括:所述车辆终端设备在所述车辆发生突发事件时,根据所述配置参数信息向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。In a possible implementation manner, the vehicle terminal device sends the vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes a location of a vehicle to which the vehicle terminal device belongs The information includes: the vehicle terminal device sends the vehicle state information to the network side device according to the configuration parameter information when an emergency event occurs in the vehicle, where the vehicle state information includes the vehicle terminal device Location information of the vehicle.
本发明实施中,不论配置参数信息是否指示了车辆终端设备发送车辆状态信息的周期,车辆终端设备均可以在车里发送突发事件时上报车辆的状态 信息,以便于可以在突发状况下可以更加及时地上报车辆的状态信息。In the implementation of the present invention, regardless of whether the configuration parameter information indicates the period in which the vehicle terminal device transmits the vehicle state information, the vehicle terminal device can report the state of the vehicle when the emergency event is sent in the vehicle. Information so that the status information of the vehicle can be reported in a more timely manner in an emergency.
在一种可能的实现方式中,所述配置参数信息还用于指示所述车辆终端设备发送的车辆状态信息的最大字节数;其中,所述车辆终端设备根据所述配置参数信息向所述网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息,包括:所述车辆终端设备根据所述配置参数信息向所述网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息,所述车辆状态信息的字节数小于或等于所述最大字节数。In a possible implementation manner, the configuration parameter information is further used to indicate a maximum number of bytes of vehicle state information sent by the vehicle terminal device, where the vehicle terminal device reports the information according to the configuration parameter information. The network side device sends the vehicle state information, where the vehicle state information includes the location information of the vehicle to which the vehicle terminal device belongs, and includes: the vehicle terminal device sends the vehicle state information to the network side device according to the configuration parameter information, The vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs, and the number of bytes of the vehicle state information is less than or equal to the maximum number of bytes.
本发明实施例的通信方法中,车辆终端设备可以根据网络侧设备配置的最大字节数上报车辆状态信息,从而可以避免车辆终端设备发送超过最大字节数的车辆状态信息而导致的上行资源的浪费。In the communication method of the embodiment of the present invention, the vehicle terminal device can report the vehicle state information according to the maximum number of bytes configured by the network side device, so that the vehicle terminal device can avoid the uplink resource caused by the vehicle state information exceeding the maximum number of bytes. waste.
在一种可能的实现方式中,所述车辆终端设备接收所述网络侧设备发送的控制消息,包括:所述车辆终端设备接收所述网络侧设备发送的物理下行控制信道PDCCH控制消息,所述PDCCH控制消息携带所述车辆终端设备所属的车辆用于VDC的无线资源信息。In a possible implementation manner, the receiving, by the vehicle terminal device, the control message sent by the network side device, includes: receiving, by the vehicle terminal device, a physical downlink control channel PDCCH control message sent by the network side device, where The PDCCH control message carries radio resource information for the VDC to which the vehicle to which the vehicle terminal device belongs.
在一种可能的实现方式中,所述配置参数信息还用于指示所述车辆状态信息中需要包含所述车辆的方向信息、所述车辆的速度信息、所述车辆的加速度信息和所述车辆的地理高度信息中的至少一种;其中,所述车辆终端设备向所述网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息包括:所述车辆终端设备根据所述配置参数信息向所述网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆的位置信息和以下信息中的至少一种:所述车辆的方向信息、所述车辆的速度信息、所述车辆的加速度信息和所述车辆的地理高度信息。In a possible implementation, the configuration parameter information is further used to indicate that the vehicle state information needs to include direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and the vehicle. At least one of the geographic height information; wherein the vehicle terminal device transmits vehicle state information to the network side device, the vehicle state information including location information of the vehicle to which the vehicle terminal device belongs includes: the vehicle The terminal device transmits vehicle state information to the network side device according to the configuration parameter information, the vehicle state information including at least one of location information of the vehicle and following information: direction information of the vehicle, the vehicle Speed information, acceleration information of the vehicle, and geographic height information of the vehicle.
本发明实施例的通信方法中,车辆终端设备根据网络侧设备的配置参数信息的指示上报车辆的速度信息或加速度信息时,可以降低车辆终端快速驶出小区带来的频繁切换问题;上报方向信息时,可以使得网络侧设备能够判断车辆的行驶轨迹,以进行车辆间的预警提示;上报地理高度信息时,可以使得网络侧设备能够获取车辆更准确的位置信息。In the communication method of the embodiment of the present invention, when the vehicle terminal device reports the speed information or the acceleration information of the vehicle according to the indication of the configuration parameter information of the network side device, the frequent switching problem caused by the vehicle terminal quickly exiting the cell can be reduced; the reporting direction information is reported. When the network side device can determine the driving trajectory of the vehicle to perform the warning prompt between the vehicles, when the geographic height information is reported, the network side device can obtain more accurate position information of the vehicle.
第三方面.本发明提供了一种网络侧设备,所述网络侧设备包括用于执行第一方面的通信方法的各个模块A third aspect of the present invention provides a network side device including respective modules for performing the communication method of the first aspect
第四方面,本发明提供了一种车辆终端设备,所述车辆终端设备包括用 于执行第二方面的通信方法的各个模块。In a fourth aspect, the present invention provides a vehicle terminal device, the vehicle terminal device including The various modules of the communication method of the second aspect are executed.
第五方面,本发明提供了一种通信系统,包括如第三方面所述的网络侧设备,以及如第四方面所述的车辆终端设备。In a fifth aspect, the present invention provides a communication system comprising the network side device according to the third aspect, and the vehicle terminal device according to the fourth aspect.
第六方面,本发明提供了一种网络侧设备,包括接收器、发送器、至少一个处理器、存储器,所述处理器用于执行所述存储器中的代码,当所述代码被执行时,所述处理器实现第一方面中的方法。According to a sixth aspect, the present invention provides a network side device, including a receiver, a transmitter, at least one processor, and a memory, where the processor is configured to execute code in the memory, when the code is executed, The processor implements the method of the first aspect.
第七方面,本发明提供了一种车辆终端设备,包括接收器、发送器、至少一个处理器、存储器,所述处理器用于执行所述存储器中的代码。当所述代码被执行时,所述处理器实现第二方面的方法。In a seventh aspect, the present invention provides a vehicle terminal device comprising a receiver, a transmitter, at least one processor, and a memory, the processor for executing code in the memory. The processor implements the method of the second aspect when the code is executed.
第八方面,本发明提供一种计算机可读介质,所述计算机可读介质存储用于网络侧设备执行的程序代码,所述程序代码包括用于执行第一方面中的方面的指令。In an eighth aspect, the present invention provides a computer readable medium storing program code for execution by a network side device, the program code comprising instructions for performing aspects of the first aspect.
第九方面,本发明提供一种计算机可读介质,所述计算机可读介质存储用于车辆终端设备执行的程序代码,所述程序代码包括用于执行第二方面中的方法的指令。In a ninth aspect, the present invention provides a computer readable medium storing program code for execution by a vehicle terminal device, the program code comprising instructions for performing the method of the second aspect.
附图说明DRAWINGS
为了更清楚地说明本发明实施例的技术方案,下面将对本发明实施例中所需要使用的附图作简单地介绍,显而易见地,下面所描述的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.
图1是本发明实施例的车辆间通信的网络的示例性架构图。1 is an exemplary architectural diagram of a network for inter-vehicle communication in accordance with an embodiment of the present invention.
图2是本发明实施例的通信方法的示意性流程图。FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present invention.
图3是本发明实施例的通信方法的示意性流程图。FIG. 3 is a schematic flowchart of a communication method according to an embodiment of the present invention.
图4是本发明实施例的网络侧设备的示意性结构图。FIG. 4 is a schematic structural diagram of a network side device according to an embodiment of the present invention.
图5是本发明实施例的车辆终端设备的示意性结构图。Fig. 5 is a schematic structural diagram of a vehicle terminal device according to an embodiment of the present invention.
图6是本发明实施例的网络侧设备的示意性结构图。FIG. 6 is a schematic structural diagram of a network side device according to an embodiment of the present invention.
图7是本发明实施例的车辆终端设备的示意性结构图。Fig. 7 is a schematic configuration diagram of a vehicle terminal device according to an embodiment of the present invention.
具体实施方式detailed description
为使本发明实施例的目的、技术方案和优点更加清楚,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,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作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。In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following will be combined with the present invention. The technical solutions in the embodiments of the present invention are clearly and completely described in the drawings, and the embodiments are described as a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
为了更好地理解本发明实施例的通信方法,下面先结合图1介绍本发明实施例的车辆直接通信的网络架构。车辆直接通信属于V2V通信中的一种通信方式,V2V通信又属于设备到设备(Device to Device,D2D)通信中的一种通信方式。In order to better understand the communication method of the embodiment of the present invention, the network architecture of the direct communication of the vehicle according to the embodiment of the present invention will be described below with reference to FIG. Vehicle direct communication belongs to a communication method in V2V communication, and V2V communication belongs to a communication method in Device to Device (D2D) communication.
图1中,网络侧设备110可以为车辆终端设备120和车辆终端设备130配置各种用于数据传输的传输参数,车辆终端设备120可以作为数据发送方,直接与车辆终端设备130进行VDC,当然车辆终端设备120也可以与网络侧设备进行长期演进(Long Term Evolution,LTE)通信,车辆终端设备120和车辆终端设备130之间也可以通过网络侧设备进行LTE通信。In FIG. 1, the network side device 110 may configure various transmission parameters for data transmission for the vehicle terminal device 120 and the vehicle terminal device 130, and the vehicle terminal device 120 may serve as a data sender to directly perform VDC with the vehicle terminal device 130, of course. The vehicle terminal device 120 may also perform Long Term Evolution (LTE) communication with the network side device, and the LTE communication may also be performed between the vehicle terminal device 120 and the vehicle terminal device 130 through the network side device.
本发明实施例中网络侧设备是一种部署在无线接入网中,并为终端设备提供无线通信功能的装置,可以是基站(Base Station,BS),例如可以是包括各种形式的宏基站,微基站,中继站,接入点等等。在采用不同的无线接入技术的系统中,具备基站功能的设备的名称可能会有所不同,例如在LTE网络中,称为演进的节点B(evolved NodeB),简称NB或者eNodeB),在第三代3G网络中,称为节点B(Node B)等等。The network side device in the embodiment of the present invention is a device that is deployed in a radio access network and provides a wireless communication function for the terminal device, and may be a base station (BS), and may be, for example, a macro base station including various forms. , micro base stations, relay stations, access points, etc. In a system using different radio access technologies, the name of a device having a base station function may be different, for example, in an LTE network, called an evolved NodeB (abbreviated as NB or eNodeB), in the first In the third generation 3G network, it is called Node B and so on.
应理解,本发明实施例中,车辆终端设备为部署在车辆的上移动通信设备。车辆终端设备之间通过无线资源执行直接通信,也就实现了车辆直接通信,车辆终端设备与网络侧设备之间通信,也就实现了车辆与网络侧设备之间的通信。因此,本发明实施例中,在某些方面上,可以将车辆终端设备等同于车辆。It should be understood that in the embodiment of the present invention, the vehicle terminal device is an upper mobile communication device deployed on the vehicle. The direct communication between the vehicle terminal devices through the wireless resources enables the direct communication of the vehicle, the communication between the vehicle terminal device and the network side device, and the communication between the vehicle and the network side device is realized. Thus, in certain embodiments of the invention, in some aspects, the vehicle terminal device can be equated with the vehicle.
图2为本发明实施例的通信方法的示意性流程图。应理解,图2示出了通信方法的步骤或操作,但这些步骤或操作仅是示例,本发明实施例还可以执行其他操作或者图2中的各个操作的变形。此外,图2中的各个步骤可以按照与图2呈现的不同的顺序来执行,并且有可能并非要执行图2中的全部操作。FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present invention. It should be understood that FIG. 2 illustrates steps or operations of the communication method, but these steps or operations are merely examples, and embodiments of the present invention may perform other operations or variations of the various operations in FIG. 2. Moreover, the various steps in FIG. 2 may be performed in a different order than that presented in FIG. 2, and it is possible that not all operations in FIG. 2 are to be performed.
图2的网络侧设备203可以是基站,但不限于是基站。图2中的车辆终端设备201可以是图1中的车辆终端设备120,相应地,车辆终端设备202 可以是图1中的车辆终端设备130。The network side device 203 of FIG. 2 may be a base station, but is not limited to a base station. The vehicle terminal device 201 in FIG. 2 may be the vehicle terminal device 120 in FIG. 1, and accordingly, the vehicle terminal device 202 It may be the vehicle terminal device 130 in FIG.
S210,车辆终端设备202向网络侧设备203(如基站)发送资源调度请求,网络侧设备接收终端设备202发送的资源调度请求。S210, the vehicle terminal device 202 sends a resource scheduling request to the network side device 203 (such as a base station), and the network side device receives the resource scheduling request sent by the terminal device 202.
通常情况下,某一个车辆终端设备需要与其他车辆终端设备进行车辆直接通信时,需要向网络侧设备发送资源调度请求。网络侧设备接收到车辆终端设备发送的资源调度请求后,知道需要为车辆分配用于VDC的无线资源。应注意,为了简洁,图2中只示出了一个车辆终端设备与网络侧设备及与一个车辆终端设备间的通信流程,图2中示出的车辆终端设备的数量不应对本发明实施例构成限制,即车辆终端设备201和车辆终端设备202可以是与网络侧设备203通信的多个车辆终端设备中的任意车辆终端设备。Generally, when a certain vehicle terminal device needs to directly communicate with other vehicle terminal devices, it needs to send a resource scheduling request to the network side device. After receiving the resource scheduling request sent by the vehicle terminal device, the network side device knows that it is necessary to allocate a radio resource for the VDC to the vehicle. It should be noted that, for the sake of brevity, only the communication flow between one vehicle terminal device and the network side device and one vehicle terminal device is shown in FIG. 2, and the number of vehicle terminal devices shown in FIG. 2 should not constitute the embodiment of the present invention. The limitation, that is, the vehicle terminal device 201 and the vehicle terminal device 202 may be any of a plurality of vehicle terminal devices that communicate with the network side device 203.
S220,车辆终端设备202向网络侧设备203发送车辆状态信息(Vehicle Status Information),该车辆状态信息包括车辆终端设备202所属的车辆的位置信息(Location Information)。网络侧设备203接收车辆终端设备202发送的车辆状态信息。S220. The vehicle terminal device 202 transmits vehicle status information (Vehicle Status Information) to the network side device 203, and the vehicle status information includes location information of the vehicle to which the vehicle terminal device 202 belongs. The network side device 203 receives the vehicle state information transmitted by the vehicle terminal device 202.
步骤220与步骤210不分先后顺序,可以是先接收车辆的资源调度请求,然后再接收车辆的车辆状态信息;也可以是先接收车辆的车辆状态信息,然后再接收车辆的资源调度请求。Step 220 and step 210 are in no particular order. The resource scheduling request of the vehicle may be received first, and then the vehicle state information of the vehicle may be received. The vehicle state information of the vehicle may be received first, and then the resource scheduling request of the vehicle may be received.
S230,网络侧设备203接收到车辆终端设备202发送的资源调度度请求后,根据接收到的车辆状态信息中的位置信息为车辆终端设备202分配用于VDC的无线资源。网络侧设备203接收车辆终端设备202发送的资源调度请求后,可以根据在此之间接收并记录的该车辆终端设备所属的车辆的车辆状态信息来为车辆分配用于VDC的无线资源,可以根据在此之后从车辆终端设备处最新接收的车辆状态信息为车辆终端设备分配用于VDC的无线资源。本发明实施例中的无线资源包括时域资源和/或频率资源。S230. After receiving the resource scheduling degree request sent by the vehicle terminal device 202, the network side device 203 allocates the wireless resource for the VDC to the vehicle terminal device 202 according to the location information in the received vehicle state information. After receiving the resource scheduling request sent by the vehicle terminal device 202, the network side device 203 may allocate the radio resource for the VDC to the vehicle according to the vehicle state information of the vehicle to which the vehicle terminal device is received and recorded, and may be based on The vehicle status information newly received from the vehicle terminal device thereafter allocates radio resources for the VDC to the vehicle terminal device. The radio resources in the embodiments of the present invention include time domain resources and/or frequency resources.
S240,网络侧设备203向车辆终端设备202发送控制消息,所述控制消息携带网络侧设备203为车辆终端设备202分配的用于VDC的无线资源的信息。车辆终端设备202接收该控制消息,从而可以根据控制消息中携带的信息确定的用于VDC的无线资源。S240. The network side device 203 sends a control message to the vehicle terminal device 202, where the control message carries information of the radio resource for the VDC allocated by the network side device 203 for the vehicle terminal device 202. The vehicle terminal device 202 receives the control message so that the radio resource for the VDC can be determined according to the information carried in the control message.
S250,车辆终端设备202根据从网络侧设备203处接收的控制消息确定无线资源后,使用该无线资源与车辆终端设备201进行直接通信。S250. After determining the wireless resource according to the control message received from the network side device 203, the vehicle terminal device 202 performs direct communication with the vehicle terminal device 201 using the wireless resource.
本发明实施例中,结合车辆的位置信息为车辆分配用于VDC的无线资 源,可以充分利用车辆的位置分布状况,合理为车辆分配时频率资源,如,具有一定位置关系的车辆可以使用相同的时域资源,从而增加使用相同资源的车辆数量,最终提高资源的利用率。In the embodiment of the present invention, the wireless resource for the VDC is allocated to the vehicle in combination with the location information of the vehicle. The source can make full use of the position distribution of the vehicle and reasonably allocate frequency resources for the vehicle. For example, vehicles with a certain positional relationship can use the same time domain resources, thereby increasing the number of vehicles using the same resources, and ultimately improving the utilization of resources. .
本发明实施例中,在步骤210之前,还可以包括以下步骤:车辆终端设备在进入网络后,网络侧设备会向车辆终端设备广播本小区的资源池配置信息,该资源池配置信息可以携带于系统信息块(System Information Block,SIB)。车辆终端设备从SIB获取资源池的配置信息,资源池的配置信息包括资源池周期等参数。车辆终端设备与网络侧设备之间建立无线资源控制(Radio Resource Control,RRC)连接后,车辆终端设备可以向网络侧设备告知自身能力,具体而言,可以使用一定数据的位(bit)标识车辆终端设备是否支持车辆状态信息上报和支持VDC。如,可以使用2bit指示车辆终端设备是否支持状态信息上报,一种可能的指示方式为:“11”表示车辆终端设备支持车辆状态信息上报且支持VDC;“10”表示车辆终端设备支持车辆状态信息上报但不支持VDC;“00”表示车辆终端设备不支持车辆状态信息上报。In the embodiment of the present invention, before the step 210, the following steps may be further included: after the vehicle terminal device enters the network, the network side device broadcasts the resource pool configuration information of the current cell to the vehicle terminal device, where the resource pool configuration information may be carried in System Information Block (SIB). The vehicle terminal device obtains configuration information of the resource pool from the SIB, and the configuration information of the resource pool includes parameters such as a resource pool period. After the radio resource control (RRC) connection is established between the vehicle terminal device and the network side device, the vehicle terminal device can notify the network side device of its own capability. Specifically, the vehicle can be identified by using bits of certain data. Whether the terminal device supports vehicle status information reporting and support VDC. For example, the 2bit can be used to indicate whether the vehicle terminal device supports status information reporting. One possible indication manner is: “11” indicates that the vehicle terminal device supports vehicle status information reporting and supports VDC; “10” indicates that the vehicle terminal device supports vehicle status information. Reported but does not support VDC; "00" indicates that the vehicle terminal device does not support vehicle status information reporting.
本发明实施例中,车辆向网络侧设备发送的车辆状态信息是车辆终端设备按照一定的格式或内容需求发送的。车辆状态信息的格式或内容需求可以是车辆终端设备与网络侧设备之间静态约定好的,也可以是网络侧设备根据具体需求为车辆终端设备动态配置的,并生成配置参数信息,发送给车辆终端设备,以指示车辆终端设备应向网络侧设备发送的车辆状态信息的组成内容或格式。In the embodiment of the present invention, the vehicle status information sent by the vehicle to the network side device is sent by the vehicle terminal device according to a certain format or content requirement. The format or content requirement of the vehicle status information may be a static agreement between the vehicle terminal device and the network side device, or may be dynamically configured by the network side device according to specific requirements, and generate configuration parameter information, and send the information to the vehicle. a terminal device to indicate a composition content or format of vehicle state information that the vehicle terminal device should transmit to the network side device.
如图3所示,图2中的分配方法还可以包括S310。图3中与图2中相同的标识表示相同的含义,此处不再赘述。As shown in FIG. 3, the allocation method in FIG. 2 may further include S310. The same reference numerals in FIG. 3 as those in FIG. 2 denote the same meanings, and are not described herein again.
S310,网络侧设备203给车辆终端设备202发送配置参数信息,该配置参数信息用于指示车辆终端设备202需要向网络侧设备203发送的车辆状态信息的内容,或者这些内容应满足的格式。车辆终端设备202接收到网络侧设备203发送的配置参数信息后,可以根据该配置参数信息执行S220。S310, the network side device 203 sends configuration parameter information to the vehicle terminal device 202, where the configuration parameter information is used to indicate the content of the vehicle state information that the vehicle terminal device 202 needs to send to the network side device 203, or a format that the content should satisfy. After receiving the configuration parameter information sent by the network side device 203, the vehicle terminal device 202 may perform S220 according to the configuration parameter information.
网络侧设备203可以通过媒体接入控制(Media Access Control,MAC)信令或RRC信令等信令向车辆终端设备202发送配置参数信息。The network side device 203 may transmit configuration parameter information to the vehicle terminal device 202 through signaling such as Media Access Control (MAC) signaling or RRC signaling.
通常情况下,配置参数信息用于指示车辆终端设备向网络侧设备发送的车辆状态信息包括车辆的位置信息。这样车辆终端设备按照配置参数信息向 网络侧设备发送包括所属车辆的位置信息的车辆状态信息,以使得网络侧设备可以根据车辆的位置信息为车辆分配用于VDC的无线资源,从而提高这些无线资源的利用率。Typically, the configuration parameter information is used to indicate that the vehicle state information transmitted by the vehicle terminal device to the network side device includes location information of the vehicle. In this way, the vehicle terminal device follows the configuration parameter information. The network side device transmits the vehicle state information including the location information of the belonging vehicle, so that the network side device can allocate the wireless resources for the VDC to the vehicle according to the location information of the vehicle, thereby improving the utilization of the wireless resources.
车辆的位置信息可以包括车辆所在的经度和维度,经度和维度可以分别包括符号位和数值两部分。The location information of the vehicle may include the longitude and dimension of the vehicle, and the longitude and dimensions may include two parts, a sign bit and a value, respectively.
经度的范围可以是(-180,180)度,也可以是(0,360)度,维度的范围可以是(-90,90)度。车辆可以通过全球定位系统(Global Positioning System,GPS)获取经度和纬度信息。经度和维度可以通过两种格式来表示,一种以单位度的方式表示,具体格式可以是“数值1.数值2”,如-35.2度表示0经度往西35.2度;另一种以“度:分:秒”的方式表示,具体格式可以是“数值3:数值4:数值5”的格式,如-21:34:12,表示0经度往西21度34分12秒。The range of longitude may be (-180, 180) degrees, or may be (0, 360) degrees, and the range of dimensions may be (-90, 90) degrees. Vehicles can obtain longitude and latitude information through the Global Positioning System (GPS). Longitude and dimension can be expressed in two formats, one in unit degree, the specific format can be "value 1. value 2", such as -35.2 degrees means 0 longitude westward 35.2 degrees; the other is "degree" The mode of "minutes:seconds" indicates that the specific format may be a format of "value 3: value 4: value 5", such as -21:34:12, indicating that 0 longitude is 21 degrees 34 minutes and 12 seconds west.
如采用“度:分:秒”的格式表示经度和维度时,经度和维度可以分别占用20bit,其中1bit表示符号,7bit表示度的数值,6bit表示分的数值,6bit表示秒的数值。If the longitude and dimension are expressed in the format of "degree: minute: second", the longitude and dimension can occupy 20 bits respectively, wherein 1 bit represents the symbol, 7 bit represents the value of the degree, 6 bit represents the value of the minute, and 6 bit represents the value of the second.
本发明实施例中,可选地,可以使用车辆的绝对当前位置信息与上次向网络侧设备上报位置信息时的绝对位置间的相对位置来表示车辆的位置。因为小区的覆盖范围是可以确定的,因此小区的覆盖范围中移动的车辆的两个位置间的最大位置差也是可以确定的,即可以根据该最大位置差确定车辆状态信息中表示车辆的相对位置的位数。In the embodiment of the present invention, optionally, the position of the vehicle may be represented by using a relative position between the absolute current position information of the vehicle and the absolute position when the position information is reported to the network side device last time. Since the coverage of the cell is determinable, the maximum position difference between the two positions of the moving vehicle in the coverage of the cell can also be determined, that is, the relative position of the vehicle in the vehicle state information can be determined according to the maximum position difference. Number of digits.
简单地说,就是网络侧设备可以根据小区的覆盖范围确定车辆终端设备应该发送车辆状态信息的最大字节数。根据小区的覆盖范围来确定车辆状态信息的最大字节数,既能保证车辆状态信息的准确度,又能合理使用承载车辆状态信息的消息,以提高资源的利用率。Simply put, the network side device can determine the maximum number of bytes that the vehicle terminal device should send the vehicle state information according to the coverage of the cell. The maximum number of bytes of the vehicle state information is determined according to the coverage of the cell, which not only ensures the accuracy of the vehicle state information, but also can reasonably use the message carrying the vehicle state information to improve resource utilization.
例如,采用“度:分:秒”的格式表示经度和维度时,若小区的覆盖范围为1度,则车辆的经度和维度可以不用表示度,只需表示分和秒。如经度和维度可以分别占用16bit,其中1bit表示符号,6bit表示分的数值,6bit表示秒的数值,其中3bit预留。For example, when the longitude and the dimension are expressed in the format of "degree: minute: second", if the coverage of the cell is 1 degree, the longitude and dimension of the vehicle may not be expressed, and only minutes and seconds are indicated. For example, the longitude and the dimension can occupy 16 bits respectively, wherein 1 bit represents a symbol, 6 bit represents a value of a minute, and 6 bit represents a value of a second, wherein 3 bits are reserved.
可选地,本发明实施例中,车辆状态信息还可以包括车辆的速度信息。这样,网络侧设备可以根据车辆的速度信息来判断车辆处于高速行驶状态还是低速行驶状态,然后可以将处于高速行驶状态的车辆调度为竞争资源,从 而减少车辆快速驶出小区所带来的小区频繁切换问题。Optionally, in the embodiment of the present invention, the vehicle status information may further include speed information of the vehicle. In this way, the network side device can judge whether the vehicle is in the high speed running state or the low speed running state according to the speed information of the vehicle, and then can dispatch the vehicle in the high speed running state as a competitive resource. The problem of frequent cell handover caused by the rapid exit of the vehicle is reduced.
车辆终端设备向网络侧设备发送速度信息的一种可能的实现方式为:在一个速度范围内,可以按照一定的粒度将该速度范围内的速度划分为不同的速度。如最大速度为765公里/时,若速度粒度为3,则可以将765公里/时以内的速度切分为256个速度点(即0至255)。相应地,可以使用1字节无符号数来指示256个索引值,每个索引值与速度粒度相乘即可得到对应的速度值。如根据第5个速度点的速度为15公里/时。A possible implementation manner of the vehicle terminal device transmitting the speed information to the network side device is that, within a speed range, the speed in the speed range can be divided into different speeds according to a certain granularity. For example, if the maximum speed is 765 km/h, if the speed granularity is 3, the speed within 765 km/h can be divided into 256 speed points (ie 0 to 255). Accordingly, a 1-byte unsigned number can be used to indicate 256 index values, and each index value is multiplied by the velocity granularity to obtain a corresponding velocity value. For example, the speed according to the 5th speed point is 15 km/h.
因此,网络侧设备可以向车辆终端设备发送一个速度粒度信息,然后车辆终端设备可以将所属车辆的速度根据该速度粒度确定出一个索引值,并在车辆状态信息中向网络侧设备发送该索引值。当网络侧设备接收到索引值后,即可以根据索引值和速度粒度计算出车辆的速度。Therefore, the network side device may send a speed granularity information to the vehicle terminal device, and then the vehicle terminal device may determine an index value according to the speed of the vehicle according to the speed of the vehicle, and send the index value to the network side device in the vehicle state information. . When the network side device receives the index value, the speed of the vehicle can be calculated according to the index value and the speed granularity.
可选地,本发明实施例中,车辆状态信息还可以包括车辆的方向信息(Direction Information)。网络侧设备可以根据车辆的方向信息预测车辆的行驶路径,从而可以进行车辆间的预警提示。Optionally, in the embodiment of the present invention, the vehicle status information may further include direction information of the vehicle. The network side device can predict the travel route of the vehicle according to the direction information of the vehicle, so that an alert prompt between the vehicles can be performed.
车辆终端设备向网络侧设备发送速度信息的一种可能的实现方式为:以北为基准,如可以用0表示正北方向,则车辆当前的行驶方向的角度范围可以表示(-180,180)。即从南至西,再往北的角度范围为负值(-180,0),从北至东再到南的角度范围为正值(0,180)。方向的表示粒度L,其中L为大于1数。A possible implementation manner of the vehicle terminal device transmitting the speed information to the network side device is: based on the north, if the true north direction can be represented by 0, the angular range of the current driving direction of the vehicle can be represented (-180, 180). . That is, from south to west, the angle to the north is negative (-180, 0), and the range from north to east to south is positive (0, 180). The direction represents the granularity L, where L is greater than one.
车辆终端设备向网络侧设备发送速度信息的另一种可能的实现方式为:以北为基准,如可以用0表示正北方向,则车辆当前的行驶方向的角度范围可以表示(0,360)。即从北至东,从东再往南,从南至西,再往北的角度范围为(0,360)。Another possible implementation manner of the vehicle terminal device transmitting the speed information to the network side device is: based on the north, if the north direction can be represented by 0, the angular range of the current driving direction of the vehicle can be represented (0, 360). . That is, from north to east, from east to south, from south to west, and further north to the angle range (0,360).
例如,若角度范围为(-180,180),可以使用8bit表示车辆的方向。其中,1bit表示符号,7bit表示0至127。然后可以将方向粒度定为1.5度。此时,根据方向粒度1.5度和索引值0至127即可以确定出对应的方向值。如,索引0表示方向为正北方向,3表示为正北为基准向东4.5度角,100表示为基准向东150度角。For example, if the angle range is (-180, 180), 8 bits can be used to indicate the direction of the vehicle. Among them, 1 bit represents a symbol, and 7 bits represents 0 to 127. The directional particle size can then be set to 1.5 degrees. At this time, the corresponding direction value can be determined according to the direction granularity of 1.5 degrees and the index values of 0 to 127. For example, the index 0 indicates that the direction is the true north direction, 3 indicates that the north is the reference to the east at an angle of 4.5 degrees, and 100 indicates that the reference is 150 degrees to the east.
这样,网络侧设备可以在配置参数信息携带该方向粒度,然后车辆可以根据该方向粒度和自己的行驶方向确定一个索引,并将该索引承载于车辆状态信息中发送给网络侧设备,网络侧设备根据该索引和方向粒度即可以确定 出车辆的方向。In this way, the network side device can carry the direction granularity in the configuration parameter information, and then the vehicle can determine an index according to the direction granularity and the driving direction of the direction, and the index is carried in the vehicle status information and sent to the network side device, and the network side device According to the index and direction granularity can be determined Out of the direction of the vehicle.
可选地,本发明实施例中,网络侧设备向车辆终端设备发送的配置参数信息还可以用于指示车辆终端设备向网络侧设备发送车辆状态信息的周期。车辆终端设备接收到配置参数信息后,可以按照该周期向网络侧设备发送所属的车辆状态信息。当然,在某些情况下,如发生紧急事故时,车辆终端设备也可以在该周期还没到时,提前向网络侧设备发送自己的车辆状态信息。Optionally, in the embodiment of the present invention, the configuration parameter information sent by the network side device to the vehicle terminal device may also be used to indicate a period in which the vehicle terminal device sends the vehicle state information to the network side device. After receiving the configuration parameter information, the vehicle terminal device may send the associated vehicle state information to the network side device according to the period. Of course, in some cases, in the event of an emergency, the vehicle terminal device may also transmit its own vehicle status information to the network side device in advance when the period has not expired.
车辆终端设备定期向网络侧设备发送自己的车辆状态信息,使得网络侧设备可以定期更新车辆的车辆状态信息,从而可以根据车辆最新的车辆状态信息为车辆分配无线资源。The vehicle terminal device periodically transmits its own vehicle state information to the network side device, so that the network side device can periodically update the vehicle state information of the vehicle, so that the vehicle can be allocated wireless resources according to the latest vehicle state information of the vehicle.
本发明实施例中,网络侧设备向车辆终端设备发送的配置参数信息还可以用于指示车辆终端设备发送的车辆状态信息中的位置信息还可以包括车辆的地理高度信息,如海拔信息。这样,车辆终端设备向网络侧设备发送的车辆状态信息中就会包括车辆的地理高度信息。网络侧设备获取车辆的地理信息后,可以更准确地确定车辆的位置。In the embodiment of the present invention, the configuration parameter information sent by the network side device to the vehicle terminal device may also be used to indicate that the location information in the vehicle state information sent by the vehicle terminal device may further include geographic height information of the vehicle, such as altitude information. Thus, the vehicle height information of the vehicle is included in the vehicle state information transmitted by the vehicle terminal device to the network side device. After the network side device acquires the geographic information of the vehicle, the location of the vehicle can be determined more accurately.
本发明实施例中,车辆终端设备可以通过媒体接入控制(Media Access Control,MAC)控制单元(Control Elements,CE),将车辆状态信息组成待发送MAC协议数据单元(Protocol Data Unit,PDU),承载在物理上行共享信道(Physical Uplink Shared Channel,PUSCH)向网络侧设备发送。MAC CE可以和缓存状态信息上报(Buffer Status Reporting,BSR)共同组成MAC PDU;也可以与LTE中的上行数据组成MAC PDU;还可以单独组成MAC PDU。In the embodiment of the present invention, the vehicle terminal device may constitute a MAC data unit (PDU) to be transmitted through a Media Access Control (MAC) control unit (Control Elements, CE). The physical uplink shared channel (PUSCH) is transmitted to the network side device. The MAC CE can be combined with the Buffer Status Reporting (BSR) to form a MAC PDU. The MAC PDU can also be combined with the uplink data in the LTE. The MAC PDU can also be formed separately.
本发明实施中,网络侧设备根据车辆的位置信息为车辆分配用于VDC的无线资源时,一种可能的具体实施方式为:网络侧设备可以将相同的时频资源分配给相距比较远的车辆,这样,即可以充分利用资源,也可以消除半双工和远近效应的影响。In the implementation of the present invention, when the network side device allocates radio resources for the VDC to the vehicle according to the location information of the vehicle, a possible specific implementation manner is: the network side device can allocate the same time-frequency resource to the vehicle with a relatively long distance. In this way, resources can be fully utilized, and the effects of half-duplex and near-far effects can be eliminated.
本发明实施例中,车辆终端设备向网络侧设备发送的资源调度请求中可以包括车辆需要进行VDC的业务的信息。目前。LTE的协议中并没有对D2D规定相应的服务质量(Quality of Service,QoS),只规定了相应的接口。In the embodiment of the present invention, the resource scheduling request sent by the vehicle terminal device to the network side device may include information that the vehicle needs to perform the service of the VDC. Currently. The LTE protocol does not specify the corresponding Quality of Service (QoS) for D2D, and only the corresponding interface is specified.
而VDC需要QoS保证,具体的QoS参数可以包括车辆服务等级标识(Vehicle QoS Class Identifier,VQCI)、分配和保留优先级(Allocation and Retention Priority,ARP)以及消息传输的最大比特速率(Maximum Bit Rate, MBR)等。The VDC requires QoS guarantee. The specific QoS parameters may include the Vehicle QoS Class Identifier (VQCI), Allocation and Retention Priority (ARP), and the maximum bit rate of the message transmission (Maximum Bit Rate, MBR) and so on.
其中,VQCI包括消息大小(Message Size),优先级(Priority),包产生频率(Frequency),发送时延(Latency),业务类型(Example Service)、包错误丢失率(Packet Error Loss Rate,PELR)等。不同优先级的VQCI,各个参数取值都不相同,以保障每条承载对应不同的业务,为不同的用户提供不同等级的服务,从而提高VDC的性能,增加用户满意度。Among them, VQCI includes Message Size, Priority, Packet Generation Frequency, Latency, Example Service, and Packet Error Loss Rate (PELR). Wait. For different priority VQCIs, the values of the parameters are different. This ensures that each bearer corresponds to different services and provides different levels of services for different users, thus improving VDC performance and increasing user satisfaction.
按照业务类型可以将车辆的业务分为VDC业务类型和LTE业务类型。V2V通信中,满足大量车辆之间通信,存在严格时延要求,需要保证VDC业务的Qos。VDC过程中,可能存在LTE业务或者VDC业务。当这两个业务共存时,一种可能的业务优先级顺序依次如下:LTE紧急业务(如紧急呼叫语音)>VDC紧急业务(如事件触发的紧急业务)>VDC周期性业务(如周期性消息)>LTE数据业务。According to the type of service, the service of the vehicle can be divided into a VDC service type and an LTE service type. In V2V communication, a large number of communication between vehicles is satisfied, and strict delay requirements are required, and the QoS of the VDC service needs to be guaranteed. During the VDC process, there may be LTE services or VDC services. When these two services coexist, one possible service priority order is as follows: LTE emergency service (such as emergency call voice) > VDC emergency service (such as event-triggered emergency service) > VDC periodic service (such as periodic message) )> LTE data service.
网络侧设备获取到车辆的业务类型后,可以根据业务类型将车辆划分为两个优先级队列:VDC业务的优先级队列和LTE业务的优先级队列。若小区中包括LTE业务和VDC业务,正常通信情况下,这两种业务会共用LTE的控制信道资源进行无线资源通信,如物理下行控制信道(Physical Downlink Control Channel,PDCCH)或增强型物理下行控制信道(Enhanced Physical Downlink Control Channel,EPDCCH)。VDC分配时,按照资源池为单位进行调度。After the network side device obtains the service type of the vehicle, the vehicle can be divided into two priority queues according to the service type: a priority queue of the VDC service and a priority queue of the LTE service. If the LTE service and the VDC service are included in the cell, the two services share the LTE control channel resources for radio resource communication, such as the physical downlink control channel (PDCCH) or the enhanced physical downlink control. Enhanced Physical Downlink Control Channel (EPDCCH). When the VDC is allocated, scheduling is performed in units of resource pools.
当一个车辆既有LTE业务,又有VDC业务时,可以按照业务类型分类,从而按照不同业务类型优先级进行调度。When a vehicle has both LTE services and VDC services, it can be classified according to service types, so that scheduling is performed according to different service type priorities.
首先,把所有车辆的业务按照类型分为紧急业务队列和普通业务队列。然后在每个调度控制(Scheduling Assigment,SA)周期内获取每个车辆的消息的产生时间,把紧急业务队列中的业务按照消息产生的时间从远至近,依次递减排序形成紧急业务的优先级队列;把普通业务队列按照消息产生的时间从远至近,依次递减排序形成普通业务的优先级队列。First, the services of all vehicles are classified into emergency service queues and common service queues by type. Then, in each scheduling control (SA) period, the time of generating the message of each vehicle is obtained, and the service in the emergency service queue is successively decremented according to the time of the message generation to form a priority queue of the emergency service. The ordinary service queue is sorted according to the time when the message is generated from far to near, and then sequentially sorted to form a priority queue of the common service.
形成队列后,可以向这些业务对应的车辆发送控制消息,即向这些车辆的车辆终端设备发送无线资源的信息。After the queue is formed, a control message can be sent to the vehicles corresponding to the services, that is, the information of the wireless resources is transmitted to the vehicle terminal devices of the vehicles.
网络侧设备可以通过多种方式向车辆终端设备分配无线资源并发送控制消息。一种是不引入车辆状态信息,直接按照分布式方法向车辆终端设备发送PDCCH控制消息。具体实施方式为:网络侧设备在每个SA周期内根 据车辆终端设备请求资源的先后顺序(即按照上述业务队列中的先后顺序),进行VDC的无线资源分配,然后向车辆终端设备发送PDCCH控制消息,告知车辆终端设备无线资源的信息。即先来先分配策略,从而节省VDC的数据包的发送时延。The network side device can allocate wireless resources to the vehicle terminal device and send control messages in a variety of ways. One is to not transmit vehicle status information, and directly transmit a PDCCH control message to the vehicle terminal device according to a distributed method. The specific implementation manner is as follows: the network side device roots in each SA period According to the order in which the vehicle terminal equipment requests resources (that is, according to the order in the foregoing service queue), the radio resource allocation of the VDC is performed, and then the PDCCH control message is sent to the vehicle terminal equipment to inform the vehicle terminal equipment of the radio resource information. That is, the policy is first allocated first, thereby saving the transmission delay of the VDC packet.
例如,在一个资源调度周期中,先后有3个车辆终端设备请求资源调度,网络侧设备按照这3个车辆终端设备请求调度资源的先后顺序进行VDC的无线资源分配,并发送相应PDCCH控制消息。For example, in a resource scheduling period, three vehicle terminal devices request resource scheduling, and the network side device performs radio resource allocation of the VDC according to the order in which the three vehicle terminal devices request scheduling resources, and sends a corresponding PDCCH control message.
另一种引入车辆状态信息的方式中,网络侧设备先在一个资源调度周期内更新车辆状态信息,然后集中对所有车辆终端设备利用复用技术或者划分区间(Zone)技术分配VDC无线资源,使得不同的位置的车辆可以使用相同的视频资源,然后再利用集中式或分布式方式向车辆终端设备发送PDCCH控制消息,以便于可以充分利用PDCCH控制消息,提升资源池待调度车辆终端设备的数量,节省VDC中的数据包发送时延。In another manner of introducing vehicle state information, the network side device first updates the vehicle state information in a resource scheduling period, and then centrally allocates VDC radio resources to all the vehicle terminal devices by using multiplexing technology or partitioning (Zone) technology, so that Vehicles in different locations may use the same video resource, and then send the PDCCH control message to the vehicle terminal device in a centralized or distributed manner, so that the PDCCH control message can be fully utilized, and the number of vehicle terminal devices to be scheduled in the resource pool is increased. Save packet delay in VDC.
集中式方式发送控制消息是指:在一个包含N个下行子帧的资源调度周期内完成车辆状态信息更新,然后在该调度周期内的第M个至第N个下行子帧向车辆终端设备下发PDCCH控制消息,节省VDC中的数据包发送时延。The centralized manner of sending the control message refers to: completing the vehicle state information update in a resource scheduling period including N downlink subframes, and then performing the Mth to Nth downlink subframes in the scheduling period to the vehicle terminal device. The PDCCH control message is sent to save the packet transmission delay in the VDC.
例如,在一个资源调度周期完成业务队列对应的车辆的车辆状态信息更新,然后根据车辆终端设备的数量,在该资源调度周期中的第M个至第N个下行子帧集中式下发PDCCH控制消息。如高速公路上车辆分布比较少的场景。For example, the vehicle state information update of the vehicle corresponding to the service queue is completed in a resource scheduling period, and then the PDCCH control is sent in the Mth to the Nth downlink subframes in the resource scheduling period according to the number of the vehicle terminal devices. Message. For example, there are fewer scenes on the highway.
可选地,网络侧设备可以在第N个下行子帧向车辆终端设备发送控制消息,即在该调度周期内的最后一个下行子帧向车辆终端设备发送控制消息,从而可以在节省调度时延的同时,为更多数量的车辆终端设备进行资源调度。Optionally, the network side device may send a control message to the vehicle terminal device in the Nth downlink subframe, that is, send a control message to the vehicle terminal device in the last downlink subframe in the scheduling period, so that the scheduling delay may be saved. At the same time, resource scheduling is performed for a larger number of vehicle terminal devices.
分布式方式发送控制消息是指:在一个资源调度周期内完成车辆状态信息更新,然后在下一个资源调度周期分布式下发PDCCH控制消息,提升资源池调度车辆的数量。The distributed mode sending control message refers to: completing the vehicle state information update in a resource scheduling period, and then distributing the PDCCH control message distributed in the next resource scheduling period to increase the number of vehicles in the resource pool scheduling.
例如,在一个资源调度周期内完成业务队列对应的车辆的车辆状态信息更新,然后在下一个资源调度周期内按照队列中业务的优先级使用下行子帧依次下发各个车辆的PDCCH控制消息。如在城市中车辆分布比较多的场景。 For example, the vehicle state information update of the vehicle corresponding to the service queue is completed in a resource scheduling period, and then the PDCCH control message of each vehicle is sequentially sent by using the downlink subframe according to the priority of the traffic in the queue in the next resource scheduling period. For example, there are many scenes where vehicles are distributed in cities.
在资源调度周期内,网络侧设备更新完成车辆状态信息之后,还可以利用车辆状态位置信息对业务优先级队列进行排序,形成按照位置排序的优先级队列。After the network side device updates the vehicle state information in the resource scheduling period, the service priority queue may also be sorted by using the vehicle state location information to form a priority queue sorted according to the location.
此时,为了判断车辆状态信息的有效性,可以为每个车辆设置定时器,如定时器的定时可以默认为10秒,当该定时可设置,也可修改。在定时时间范围内若无该车辆的车辆状态信息上报,则该车辆状态信息失效,直接将该车辆的业务放在排序队列后面。At this time, in order to judge the validity of the vehicle state information, a timer may be set for each vehicle. For example, the timing of the timer may be set to 10 seconds by default, and may be modified when the timing is set. If the vehicle state information of the vehicle is not reported within the time range, the vehicle state information is invalid, and the traffic of the vehicle is directly placed behind the sorting queue.
上面结合图2和图3介绍了本发明实施例的通信方法,下面结合图4至图7介绍本发明实施例的网络侧设备和车辆终端设备。The communication method of the embodiment of the present invention is described above with reference to FIG. 2 and FIG. 3. The network side device and the vehicle terminal device according to the embodiment of the present invention are described below with reference to FIG. 4 to FIG.
图4是本发明实施例的网络侧设备400的示意性结构图。应理解,图4示出的结构仅是示例,本发明实施例的网络侧设备还可包括其他模块或单元,或者包括与图4中的各个模块的功能相似的模块,或者并非要包括图4中的所有模块。FIG. 4 is a schematic structural diagram of a network side device 400 according to an embodiment of the present invention. It should be understood that the structure shown in FIG. 4 is only an example, and the network side device of the embodiment of the present invention may further include other modules or units, or include modules similar to those of the respective modules in FIG. 4, or not including FIG. 4. All modules in .
网络侧设备400包括接收模块410、分配模块420和发送模块430。网络侧设备400的各个模块可以是物理分离的模块,也可以是逻辑分离的模块,本发明对此不作限制。The network side device 400 includes a receiving module 410, an allocating module 420, and a transmitting module 430. The modules of the network side device 400 may be physically separated modules or logically separated modules, which is not limited by the present invention.
接收模块410,用于接收至少一个车辆终端设备发送的资源调度请求,所述资源调度请求用于请求所述网络侧设备为所述资源调度请求对应的车辆终端设备分配用于车辆直接通信VDC的无线资源。The receiving module 410 is configured to receive a resource scheduling request sent by the at least one vehicle terminal device, where the resource scheduling request is used to request the network side device to allocate a vehicle direct communication VDC for the vehicle terminal device corresponding to the resource scheduling request. Wireless resources.
接收模块410还用于接收所述至少一个车辆终端设备发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。The receiving module 410 is further configured to receive vehicle state information sent by the at least one vehicle terminal device, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs.
分配模块420,用于根据所述车辆状态信息为所述至少一个车辆终端设备分配用于VDC的无线资源。The allocating module 420 is configured to allocate, for the at least one vehicle terminal device, a radio resource for the VDC according to the vehicle state information.
发送模块430,用于向所述至少一个车辆终端设备发送控制消息,所述控制消息携带所述控制消息对应的车辆终端设备用于VDC的无线资源的信息。The sending module 430 is configured to send a control message to the at least one vehicle terminal device, where the control message carries information about a radio resource used by the vehicle terminal device corresponding to the control message for the VDC.
本发明实施例中,网络侧设备获取车辆的车辆状态信息,然后根据车辆状态信息中携带了车辆的位置信息为车辆终端设备分配用于VDC的无线资源。从而可以合理地利用无线资源,提高资源的利用率。In the embodiment of the present invention, the network side device acquires vehicle state information of the vehicle, and then allocates a wireless resource for the VDC to the vehicle terminal device according to the location information of the vehicle carried in the vehicle state information. Therefore, the wireless resources can be reasonably utilized to improve the utilization of resources.
可选地,作为一个实施例,所述分配模块420具体用于:根据所述至少一个车辆终端设备所属的车辆的位置信息,为所述至少一个车辆终端设备中 不同的车辆终端设备分配相同的用于VDC的无线资源。Optionally, as an embodiment, the allocating module 420 is specifically configured to: in the at least one vehicle terminal device, according to location information of the vehicle to which the at least one vehicle terminal device belongs Different vehicle terminal devices are assigned the same radio resources for the VDC.
本发明实施例中,根据车辆的位置信息为车辆终端设备分配无线资源,如根据车辆的位置信息,并利用复用技术或划分区域(ZONE)技术等为车辆终端设备分配无线资源,使得位于不同位置的车辆的车辆终端设备可以使用相同的无线资源(或时频资源),从而实现提高资源利用率的不同,还能消除远近效应等影响。In the embodiment of the present invention, the wireless resource is allocated to the vehicle terminal device according to the location information of the vehicle, for example, according to the location information of the vehicle, and the wireless resource is allocated to the vehicle terminal device by using a multiplexing technology or a ZONE technology, so that the location is different. The vehicle terminal device of the location vehicle can use the same radio resource (or time-frequency resource), thereby achieving different resource utilization and eliminating the effects of the near-far effect.
可选地,作为一个实施例,所述发送模块430具体用于:根据所述至少一个车辆终端设备所属的车辆的位置信息,确定向所述至少一个车辆终端设备发送所述控制消息的先后顺序;按照所述先后顺序向所述至少一个车辆终端设备发送所述控制消息。Optionally, as an embodiment, the sending module 430 is specifically configured to: determine, according to location information of the vehicle to which the at least one vehicle terminal device belongs, a sequence of sending the control message to the at least one vehicle terminal device And transmitting the control message to the at least one vehicle terminal device in the stated order.
本发明实施例中,可以根据车辆的位置信息按照车辆的位置从进至远的顺序确定网络侧设备向车辆终端设备发送控制消息的先后顺序,并按照该先后顺序发送控制消息,从而可以减低用于VDC的无线资源的调度时延。In the embodiment of the present invention, the sequence of sending the control message by the network side device to the vehicle terminal device may be determined according to the position information of the vehicle according to the position of the vehicle, and the control message may be sent according to the sequence, thereby reducing the use. The scheduling delay of the radio resources of the VDC.
可选地,作为一个实施例,所述接收模块410具体用于:在资源池的第一调度周期内接收所述至少一个车辆终端设备发送的车辆状态信息;所述发送模块430具体用于:在所述第一调度周期内的第M个至第N个下行子帧向所述至少一个车辆终端设备发送控制消息,所述控制消息承载于物理下行控制信道PDCCH,所述第一调度周期内包括N个下行子帧,1≤M≤N。Optionally, as an embodiment, the receiving module 410 is specifically configured to: receive the vehicle state information sent by the at least one vehicle terminal device in a first scheduling period of the resource pool; the sending module 430 is specifically configured to: Transmitting, by the Mth to the Nth downlink subframes in the first scheduling period, a control message to the at least one vehicle terminal device, where the control message is carried in a physical downlink control channel PDCCH, in the first scheduling period Includes N downlink subframes, 1 ≤ M ≤ N.
本发明实施例中,网络侧设备在同一个资源调度周期内先获取车辆的车辆状态信息,根据这些车辆状态信息分配VDC无线资源后,再在最后N-M个子帧发送控制消息,以告知车辆终端设备VDC的无线资源信息,从而可以节省VDC无线资源的调度时延。In the embodiment of the present invention, the network side device first acquires vehicle state information of the vehicle in the same resource scheduling period, allocates VDC radio resources according to the vehicle state information, and then sends a control message in the last NM subframes to notify the vehicle terminal device. The radio resource information of the VDC can save the scheduling delay of the VDC radio resource.
可选地,所述接收模块410具体用于:在资源池的第一调度周期内的第N个下行子帧向所述至少一个车辆终端设备发送控制消息,从而可以在节省VDC无线资源的调度时延时,还可以为更多的车辆终端设备进行资源调度。Optionally, the receiving module 410 is specifically configured to: send a control message to the at least one vehicle terminal device in an Nth downlink subframe in a first scheduling period of the resource pool, so that the scheduling of saving VDC radio resources may be saved. Time delay can also be used for resource scheduling of more vehicle terminal equipment.
可选地,作为一个实施例,所接收模块410具体用于:在资源池的第一调度周期内接收所述至少一个车辆终端设备发送的车辆状态信息;所述发送模块430具体用于:在所述第一调度周期的下一个调度周期向所述至少一个车辆终端设备发送控制消息,所述控制消息承载于物理下行控制信道PDCCH。Optionally, as an embodiment, the receiving module 410 is specifically configured to: receive the vehicle state information sent by the at least one vehicle terminal device in a first scheduling period of the resource pool; the sending module 430 is specifically configured to: The next scheduling period of the first scheduling period sends a control message to the at least one vehicle terminal device, where the control message is carried on the physical downlink control channel PDCCH.
本发明实施例中,在上一个资源调度周期获取车辆的车辆状态信息,然 后根据车辆状态信息分配VDC无线资源,再在下一个资源调度周期向车辆终端设备发送控制消息,从而可以增加可调度VDC无线资源的车辆终端设备的数量。In the embodiment of the present invention, the vehicle state information of the vehicle is acquired in the last resource scheduling period, Then, the VDC radio resource is allocated according to the vehicle state information, and then the control message is sent to the vehicle terminal device in the next resource scheduling period, so that the number of the vehicle terminal devices that can schedule the VDC radio resource can be increased.
可选地,作为一个实施例,所述接收模块410具体用于:接收所述至少一个车辆终端设备在物理上行共享信道PUSCH上发送的、携带于媒体接入控制MAC协议数据单元PDU中的MAC控制单元CE中的车辆状态信息。Optionally, as an embodiment, the receiving module 410 is specifically configured to: receive, by using the at least one vehicle terminal device, a MAC that is sent by using the physical uplink shared channel (PUSCH) and carried in a medium access control MAC protocol data unit PDU. Vehicle status information in the control unit CE.
本发明实施例中,车辆终端设备通过MAC CE方式组成MAC PDU,并承载在PUSCH向网络侧设备上报,在对现有协议修改比较小的情况下,可以灵活、独立及精准地上报车辆状态信息,而且还可以缩短上报时延。In the embodiment of the present invention, the vehicle terminal device forms a MAC PDU by means of a MAC CE, and is carried on the PUSCH to report to the network side device. When the modification of the existing protocol is relatively small, the vehicle status information can be reported flexibly, independently and accurately. And can also shorten the reporting delay.
可选地,作为一个实施例,所述发送模块430还用于:向所述至少一个车辆终端设备发送配置参数信息,所述配置参数信息用于指示所述至少一个车辆终端设备发送的车辆状态信息需要包括所述车辆终端设备所属的车辆的位置信息;其中,所述接收模块410具体用于:接收所述至少一个车辆终端设备中每个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。Optionally, as an embodiment, the sending module 430 is further configured to: send configuration parameter information to the at least one vehicle terminal device, where the configuration parameter information is used to indicate a vehicle status sent by the at least one vehicle terminal device The information needs to include the location information of the vehicle to which the vehicle terminal device belongs; wherein the receiving module 410 is specifically configured to: receive a vehicle state that is sent by each of the at least one vehicle terminal device according to the configuration parameter information. Information, the vehicle status information includes location information of a vehicle to which the vehicle terminal device belongs.
本发明实施例中,网络侧设备为车辆终端设备发送指示车辆状态信息的内容的配置参数信息,然后车辆终端设备能够根据网络侧设备配置的参数向网络侧设备上报车辆的车辆状态信息。这样车辆终端设备可以灵活地根据网络侧设备的需要上报车辆的状态信息。In the embodiment of the present invention, the network side device sends configuration parameter information indicating the content of the vehicle state information to the vehicle terminal device, and then the vehicle terminal device can report the vehicle state information of the vehicle to the network side device according to the parameter configured by the network side device. In this way, the vehicle terminal device can flexibly report the state information of the vehicle according to the needs of the network side device.
可选地,作为一个实施例,所述配置参数信息还用于指示所述至少一个车辆终端设备发送车辆状态信息的周期;其中,所述接收模块410具体用于:接收所述至少一个车辆终端设备按照所述周期发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所述的车辆的位置信息。Optionally, as an embodiment, the configuration parameter information is further used to indicate a period in which the at least one vehicle terminal device sends the vehicle state information, where the receiving module 410 is specifically configured to: receive the at least one vehicle terminal. The vehicle state information transmitted by the device according to the cycle, the vehicle state information including location information of the vehicle described by the vehicle terminal device.
本发明实施例中,车辆终端设备可以根据网络侧设备发送的配置参数中指示的周期向网络车设备上报车辆的状态信息,从而可以及时更新网络侧设备上记录的车辆状态信息,以使得网络侧设备可以根据最新车辆状态信息更准确地为车辆终端设备分配VDC无线资源。In the embodiment of the present invention, the vehicle terminal device can report the state information of the vehicle to the network vehicle device according to the period indicated in the configuration parameter sent by the network side device, so that the vehicle state information recorded on the network side device can be updated in time to make the network side The device can more accurately allocate VDC radio resources to the vehicle terminal equipment based on the latest vehicle status information.
可选地,作为一个实施例,所述配置参数信息还用于指示所述至少一个车辆终端设备发送的车辆状态信息的最大字节数;其中,所述接收模块410具体用于:接收所述至少一个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信 息,所述车辆状态信息的字节数小于或等于所述最大字节数。Optionally, as an embodiment, the configuration parameter information is further used to indicate a maximum number of bytes of vehicle state information that is sent by the at least one vehicle terminal device, where the receiving module 410 is specifically configured to: receive the Vehicle state information transmitted by the at least one vehicle terminal device according to the configuration parameter information, the vehicle state information including a location letter of a vehicle to which the vehicle terminal device belongs The number of bytes of the vehicle status information is less than or equal to the maximum number of bytes.
本发明实施例中,网络侧设备为车辆终端设备指示上报的车辆状态信息的最大字节数,然后车辆终端设备可以根据该最大字节数上报车辆状态信息,从而可以避免车辆终端设备发送超过最大字节数的车辆状态信息而导致的信息的丢失。In the embodiment of the present invention, the network side device indicates the maximum number of bytes of the reported vehicle state information for the vehicle terminal device, and then the vehicle terminal device can report the vehicle state information according to the maximum number of bytes, thereby preventing the vehicle terminal device from transmitting more than the maximum. Loss of information caused by the number of bytes of vehicle status information.
可选地,作为一个实施例,所述网络侧设备还包括确定模块,用于根据所述网络侧设备的小区覆盖范围确定所述最大字节数。Optionally, as an embodiment, the network side device further includes a determining module, configured to determine the maximum number of bytes according to a cell coverage of the network side device.
本发明实施例中,根据小区覆盖范围灵活确定车辆状态信息的最大字节数,可以合理利用携带车辆状态信息的资源,提高携带车辆状态信息的资源的利用率。In the embodiment of the present invention, the maximum number of bytes of the vehicle state information is flexibly determined according to the coverage of the cell, and the resource carrying the vehicle state information can be reasonably utilized to improve the utilization rate of the resource carrying the vehicle state information.
可选地,作为一个实施例,所述配置参数信息还用于指示所述车辆状态信息中需要包含车辆的方向信息、车辆的速度信息、车辆的加速度信息和车辆所在海拔信息中的至少一种;其中,所述接收模块410具体用于:所述接收所述至少一个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息和以下信息中的至少一种:所述车辆的方向信息、所述车辆的速度信息、所述车辆的加速度信息和所述车辆的地理高度信息。Optionally, as an embodiment, the configuration parameter information is further used to indicate at least one of the vehicle state information that needs to include direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and altitude information of the vehicle. The receiving module 410 is specifically configured to: receive the vehicle state information that is sent by the at least one vehicle terminal device according to the configuration parameter information, where the vehicle state information includes a location of a vehicle to which the vehicle terminal device belongs At least one of information and information of: direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and geographic height information of the vehicle.
本发明实施例中,车辆终端设备根据网络侧设备的配置参数信息的指示上报车辆的速度信息或加速度信息时,可以降低车辆终端快速驶出小区带来的频繁切换问题;上报方向信息时,可以使得网络侧设备能够判断车辆的行驶轨迹,以进行车辆间的预警提示;上报地理高度信息时,可以使得网络侧设备能够获取车辆更准确的位置信息。In the embodiment of the present invention, when the vehicle terminal device reports the speed information or the acceleration information of the vehicle according to the indication of the configuration parameter information of the network side device, the frequent switching problem caused by the vehicle terminal quickly exiting the cell can be reduced; when the direction information is reported, The network side device can determine the driving trajectory of the vehicle to perform an alert prompt between the vehicles; when the geographic height information is reported, the network side device can obtain more accurate location information of the vehicle.
图5是本发明实施例的车辆终端设备500的示意性结构图。应理解,图5示出的结构仅是示例,本发明实施例的车辆终端设备还可包括其他模块或单元,或者包括与图5中的各个模块的功能相似的模块,或者并非要包括图5中的所有模块。FIG. 5 is a schematic configuration diagram of a vehicle terminal device 500 according to an embodiment of the present invention. It should be understood that the structure shown in FIG. 5 is only an example, and the vehicle terminal device of the embodiment of the present invention may further include other modules or units, or include modules similar to those of the respective modules in FIG. 5, or not including FIG. 5. All modules in .
车辆终端设备500包括发送模块510和接收模块520。车辆终端设备500的各个模块可以是物理分离的模块,也可以是逻辑分离的模块,本发明对此不作限制。The vehicle terminal device 500 includes a transmitting module 510 and a receiving module 520. The modules of the vehicle terminal device 500 may be physically separated modules or logically separated modules, which is not limited by the present invention.
发送模块510,用于向网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。 The sending module 510 is configured to send vehicle state information to the network side device, where the vehicle state information includes location information of the vehicle to which the vehicle terminal device belongs.
发送模块510还用于向所述网络侧设备发送资源调度请求,所述资源调度请求用于请求所述网络侧设备为所述车辆分配用于车辆直接通信VDC的无线资源信息。The sending module 510 is further configured to send a resource scheduling request to the network side device, where the resource scheduling request is used to request the network side device to allocate radio resource information for the vehicle direct communication VDC to the vehicle.
接收模块520,用于接收所述网络侧设备发送的控制消息,所述控制消息携带所述无线资源信息。The receiving module 520 is configured to receive a control message sent by the network side device, where the control message carries the wireless resource information.
本发明实施例中,车辆终端设备向网络侧设备上报车辆的车辆状态信息,以使得网络侧设备可以根据车辆状态信息携带地车辆的位置信息为车辆终端设备分配用于VDC的无线资源。从而可以合理地利用无线资源,提高资源的利用率。In the embodiment of the present invention, the vehicle terminal device reports the vehicle state information of the vehicle to the network side device, so that the network side device can allocate the wireless resource for the VDC to the vehicle terminal device according to the location information of the vehicle carried by the vehicle state information. Therefore, the wireless resources can be reasonably utilized to improve the utilization of resources.
可选地,作为一个实施例,所述发送模块510具体用于:通过物理上行共享信道PUSCH上的媒体接入控制MAC协议数据单元PDU中的MAC控制单元CE向所述网络侧设备发送所述车辆状态信息。Optionally, as an embodiment, the sending module 510 is specifically configured to: send, by using a MAC control unit CE in a medium access control MAC protocol data unit PDU on a physical uplink shared channel PUSCH, to the network side device. Vehicle status information.
本发明实施例中,车辆终端设备通过MAC CE方式组成MAC PDU,并承载在PUSCH向网络侧设备上报,在对现有协议修改比较小的情况下,可以灵活、独立及精准地上报车辆状态信息,而且还可以缩短上报时延。In the embodiment of the present invention, the vehicle terminal device forms a MAC PDU by means of a MAC CE, and is carried on the PUSCH to report to the network side device. When the modification of the existing protocol is relatively small, the vehicle status information can be reported flexibly, independently and accurately. And can also shorten the reporting delay.
可选地,作为一个实施例,所述接收模块520还用于:接收所述网络侧设备发送的配置参数信息,所述配置参数信息用于指示所述车辆终端设备发送的车辆状态信息需要包括所述车辆终端设备所属的车辆的位置信息;其中,所述发送模块510具体用于:根据所述配置参数信息,向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。Optionally, as an embodiment, the receiving module 520 is further configured to: receive configuration parameter information sent by the network side device, where the configuration parameter information is used to indicate that the vehicle status information sent by the vehicle terminal device needs to include The location information of the vehicle to which the vehicle terminal device belongs; wherein the sending module 510 is specifically configured to: send the vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes The location information of the vehicle to which the vehicle terminal device belongs is described.
本发明实施例中,车辆终端设备能够根据网络侧设备配置的参数向网络侧设备上报车辆的车辆状态信息。这样车辆终端设备可以灵活地根据网络侧设备的需要上报车辆的状态信息。In the embodiment of the present invention, the vehicle terminal device can report the vehicle state information of the vehicle to the network side device according to the parameter configured by the network side device. In this way, the vehicle terminal device can flexibly report the state information of the vehicle according to the needs of the network side device.
可选地,作为一个实施例,所述配置参数信息还用于指示所述车辆终端设备发送所述车辆状态信息的周期;其中,所述发送模块510具体用于:按照所述周期,根据所述配置参数信息,向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。Optionally, as an embodiment, the configuration parameter information is further used to indicate a period in which the vehicle terminal device sends the vehicle state information, where the sending module 510 is specifically configured to: according to the period, according to the The configuration parameter information is sent to the network side device, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs.
本发明实施例中,车辆终端设备可以根据网络侧设备发送的配置参数中指示的周期向网络车设备上报车辆的状态信息,从而可以及时更新网络侧设备上记录的车辆状态信息,以使得网络侧设备可以根据最新车辆状态信息更 准确地为车辆终端设备分配VDC无线资源。In the embodiment of the present invention, the vehicle terminal device can report the state information of the vehicle to the network vehicle device according to the period indicated in the configuration parameter sent by the network side device, so that the vehicle state information recorded on the network side device can be updated in time to make the network side The device can be based on the latest vehicle status information. Accurately assign VDC radio resources to vehicle terminal equipment.
可选地,作为一个实施例,所述发送模块510具体用于:在所述车辆发生突发事件时,根据所述配置参数信息向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。Optionally, as an embodiment, the sending module 510 is specifically configured to: when the emergency occurs in the vehicle, send the vehicle state information to the network side device according to the configuration parameter information, where the vehicle The status information includes location information of the vehicle to which the vehicle terminal device belongs.
本发明实施中,不论配置参数信息是否指示了车辆终端设备发送车辆状态信息的周期,车辆终端设备均可以在车里发送突发事件时上报车辆的状态信息,以便于可以在突发状况下可以更加及时地上报车辆的状态信息。In the implementation of the present invention, regardless of whether the configuration parameter information indicates the period in which the vehicle terminal device transmits the vehicle state information, the vehicle terminal device can report the state information of the vehicle when the emergency event is sent in the vehicle, so that the emergency information can be Report the status information of the vehicle in a more timely manner.
可选地,作为一个实施例,所述配置参数信息还用于指示所述车辆终端设备发送的车辆状态信息的最大字节数;其中,所述发送模块510具体用于:根据所述配置参数信息向所述网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息,所述车辆状态信息的字节数小于或等于所述最大字节数。Optionally, as an embodiment, the configuration parameter information is further used to indicate a maximum number of bytes of the vehicle state information that is sent by the vehicle terminal device, where the sending module 510 is specifically configured to: according to the configuration parameter The information transmits vehicle state information to the network side device, the vehicle state information including location information of the vehicle to which the vehicle terminal device belongs, and the number of bytes of the vehicle state information is less than or equal to the maximum number of bytes.
本发明实施例中,车辆终端设备可以根据网络侧设备配置地最大字节数上报车辆状态信息,从而可以避免车辆终端设备发送超过最大字节数的车辆状态信息而导致的信息的丢失。In the embodiment of the present invention, the vehicle terminal device can report the vehicle state information according to the maximum number of bytes configured by the network side device, so that the vehicle terminal device can avoid the loss of information caused by the vehicle state information exceeding the maximum number of bytes.
可选地,作为一个实施例,所述接收模块520具体用于:接收所述网络侧设备发送的物理下行控制信道PDCCH控制消息,所述PDCCH控制消息携带所述车辆终端设备所属的车辆用于VDC的无线资源信息。Optionally, as an embodiment, the receiving module 520 is specifically configured to: receive a physical downlink control channel PDCCH control message sent by the network side device, where the PDCCH control message carries a vehicle to which the vehicle terminal device belongs Radio resource information of the VDC.
可选地,作为一个实施例,所述配置参数信息还用于指示所述车辆状态信息中需要包含所述车辆的方向信息、所述车辆的速度信息、所述车辆的加速度信息和所述车辆的地理高度信息中的至少一种;其中,所述发送模块510具体用于:根据所述配置参数信息向所述网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆的位置信息和以下信息中的至少一种:所述车辆的方向信息、所述车辆的速度信息、所述车辆的加速度信息和所述车辆的地理高度信息。Optionally, as an embodiment, the configuration parameter information is further used to indicate that the vehicle state information needs to include direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and the vehicle. At least one of the geographic height information, wherein the sending module 510 is specifically configured to: send vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes location information of the vehicle And at least one of the following information: direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and geographic height information of the vehicle.
本发明实施例中,车辆终端设备根据网络侧设备的配置参数信息的指示上报车辆的速度信息或加速度信息时,可以降低车辆终端快速驶出小区带来的频繁切换问题;上报方向信息时,可以使得网络侧设备能够判断车辆的行驶轨迹,以进行车辆间的预警提示;上报地理高度信息时,可以使得网络侧设备能够获取车辆更准确的位置信息。In the embodiment of the present invention, when the vehicle terminal device reports the speed information or the acceleration information of the vehicle according to the indication of the configuration parameter information of the network side device, the frequent switching problem caused by the vehicle terminal quickly exiting the cell can be reduced; when the direction information is reported, The network side device can determine the driving trajectory of the vehicle to perform an alert prompt between the vehicles; when the geographic height information is reported, the network side device can obtain more accurate location information of the vehicle.
图6是本发明实施例的网络侧设备600的示意性结构图。应理解,图6 的网络侧设备600能够执行图2和图3中由网络侧设备执行的各个步骤,网络侧设备600包括存储器610、处理器620、接收器630和发送器640。FIG. 6 is a schematic structural diagram of a network side device 600 according to an embodiment of the present invention. It should be understood that Figure 6 The network side device 600 is capable of performing the various steps performed by the network side device in FIGS. 2 and 3, and the network side device 600 includes the memory 610, the processor 620, the receiver 630, and the transmitter 640.
存储器610,用于存储程序。The memory 610 is configured to store a program.
接收器630,用于接收至少一个车辆终端设备发送的资源调度请求,所述资源调度请求用于请求所述网络侧设备为所述资源调度请求对应的车辆终端设备分配用于车辆直接通信VDC的无线资源。The receiver 630 is configured to receive a resource scheduling request sent by the at least one vehicle terminal device, where the resource scheduling request is used to request the network side device to allocate a vehicle direct communication VDC for the vehicle terminal device corresponding to the resource scheduling request. Wireless resources.
接收器630还用于接收所述至少一个车辆终端设备发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。The receiver 630 is further configured to receive vehicle state information sent by the at least one vehicle terminal device, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs.
处理器620,用于根据所述车辆状态信息为所述至少一个车辆终端设备分配用于VDC的无线资源。The processor 620 is configured to allocate, for the at least one vehicle terminal device, a radio resource for the VDC according to the vehicle state information.
发送器640,用于向所述至少一个车辆终端设备发送控制消息,所述控制消息携带所述控制消息对应的车辆终端设备用于VDC的无线资源的信息。The transmitter 640 is configured to send a control message to the at least one vehicle terminal device, where the control message carries information about a radio resource used by the vehicle terminal device for the VDC corresponding to the control message.
本发明实施例中,网络侧设备获取车辆的车辆状态信息,然后根据车辆状态信息中携带了车辆的位置信息为车辆终端设备分配用于VDC的无线资源。从而可以合理地利用无线资源,提高资源的利用率。In the embodiment of the present invention, the network side device acquires vehicle state information of the vehicle, and then allocates a wireless resource for the VDC to the vehicle terminal device according to the location information of the vehicle carried in the vehicle state information. Therefore, the wireless resources can be reasonably utilized to improve the utilization of resources.
可选地,作为一个实施例,所述处理器620具体用于:根据所述至少一个车辆终端设备所属的车辆的位置信息,为所述至少一个车辆终端设备中不同的车辆终端设备分配相同的用于VDC的无线资源。Optionally, as an embodiment, the processor 620 is specifically configured to: assign, according to location information of the vehicle to which the at least one vehicle terminal device belongs, different vehicle terminal devices in the at least one vehicle terminal device Radio resource for VDC.
本发明实施例中,根据车辆的位置信息为车辆终端设备分配无线资源,如根据车辆的位置信息,并利用复用技术或划分区域(ZONE)技术等为车辆终端设备分配无线资源,使得位于不同位置的车辆的车辆终端设备可以使用相同的无线资源(或时频资源),从而实现提高资源利用率的不同,还能消除远近效应等影响。In the embodiment of the present invention, the wireless resource is allocated to the vehicle terminal device according to the location information of the vehicle, for example, according to the location information of the vehicle, and the wireless resource is allocated to the vehicle terminal device by using a multiplexing technology or a ZONE technology, so that the location is different. The vehicle terminal device of the location vehicle can use the same radio resource (or time-frequency resource), thereby achieving different resource utilization and eliminating the effects of the near-far effect.
可选地,作为一个实施例,所述发送器640具体用于:根据所述至少一个车辆终端设备所属的车辆的位置信息,确定向所述至少一个车辆终端设备发送所述控制消息的先后顺序;按照所述先后顺序向所述至少一个车辆终端设备发送所述控制消息。Optionally, as an embodiment, the transmitter 640 is specifically configured to: determine, according to location information of the vehicle to which the at least one vehicle terminal device belongs, a sequence of sending the control message to the at least one vehicle terminal device And transmitting the control message to the at least one vehicle terminal device in the stated order.
本发明实施例中,可以根据车辆的位置信息按照车辆的位置从进至远的顺序确定网络侧设备向车辆终端设备发送控制消息的先后顺序,并按照该先后顺序发送控制消息,从而可以减低用于VDC的无线资源的调度时延。 In the embodiment of the present invention, the sequence of sending the control message by the network side device to the vehicle terminal device may be determined according to the position information of the vehicle according to the position of the vehicle, and the control message may be sent according to the sequence, thereby reducing the use. The scheduling delay of the radio resources of the VDC.
可选地,作为一个实施例,所述接收器630具体用于:在资源池的第一调度周期内接收所述至少一个车辆终端设备发送的车辆状态信息;所述发送模块430具体用于:在所述第一调度周期内的第M个至第N个下行子帧向所述至少一个车辆终端设备发送控制消息,所述控制消息承载于物理下行控制信道PDCCH,所述第一调度周期内包括N个下行子帧,1≤M≤N。Optionally, as an embodiment, the receiver 630 is specifically configured to: receive the vehicle state information sent by the at least one vehicle terminal device in a first scheduling period of the resource pool; the sending module 430 is specifically configured to: Transmitting, by the Mth to the Nth downlink subframes in the first scheduling period, a control message to the at least one vehicle terminal device, where the control message is carried in a physical downlink control channel PDCCH, in the first scheduling period Includes N downlink subframes, 1 ≤ M ≤ N.
本发明实施例中,网络侧设备在同一个资源调度周期内先获取车辆的车辆状态信息,根据这些车辆状态信息分配VDC无线资源后,再在最后N-M个下行子帧发送控制消息,以告知车辆终端设备VDC的无线资源信息,从而可以节省VDC无线资源的调度时延。In the embodiment of the present invention, the network side device first acquires vehicle state information of the vehicle in the same resource scheduling period, allocates VDC radio resources according to the vehicle state information, and then sends a control message in the last NM downlink subframes to notify the vehicle. The radio resource information of the terminal device VDC can save the scheduling delay of the VDC radio resource.
可选地,所述接收器630具体用于:在资源池的第一调度周期内的第N个下行子帧向所述至少一个车辆终端设备发送控制消息,从而可以在节省VDC无线资源的调度时延时,还可以为更多的车辆终端设备进行资源调度。Optionally, the receiver 630 is specifically configured to: send a control message to the at least one vehicle terminal device in an Nth downlink subframe in a first scheduling period of the resource pool, so that the scheduling of the VDC radio resource may be saved. Time delay can also be used for resource scheduling of more vehicle terminal equipment.
可选地,作为一个实施例,所接收器630具体用于:在资源池的第一调度周期内接收所述至少一个车辆终端设备发送的车辆状态信息;所述发送器640具体用于:在所述第一调度周期的下一个调度周期向所述至少一个车辆终端设备发送控制消息,所述控制消息承载于物理下行控制信道PDCCH。Optionally, as an embodiment, the receiver 630 is specifically configured to: receive the vehicle state information sent by the at least one vehicle terminal device in a first scheduling period of the resource pool; the transmitter 640 is specifically configured to: The next scheduling period of the first scheduling period sends a control message to the at least one vehicle terminal device, where the control message is carried on the physical downlink control channel PDCCH.
本发明实施例中,在上一个资源调度周期获取车辆的车辆状态信息,然后根据车辆状态信息分配VDC无线资源,再在下一个资源调度周期向车辆终端设备发送控制消息,从而可以增加可调度VDC无线资源的车辆终端设备的数量。In the embodiment of the present invention, the vehicle state information of the vehicle is acquired in the last resource scheduling period, then the VDC radio resource is allocated according to the vehicle state information, and then the control message is sent to the vehicle terminal device in the next resource scheduling period, thereby increasing the schedulable VDC wireless. The number of vehicle terminal equipment for the resource.
可选地,作为一个实施例,所述接收器630具体用于:接收所述至少一个车辆终端设备在物理上行共享信道PUSCH上发送的、携带于媒体接入控制MAC协议数据单元PDU中的MAC控制单元CE中的车辆状态信息。Optionally, as an embodiment, the receiver 630 is specifically configured to: receive, by the at least one vehicle terminal device, a MAC that is sent by using the physical uplink shared channel (PUSCH) and carried in a medium access control MAC protocol data unit PDU. Vehicle status information in the control unit CE.
本发明实施例中,车辆终端设备通过MAC CE方式组成MAC PDU,并承载在PUSCH向网络侧设备上报,在对现有协议修改比较小的情况下,可以灵活、独立及精准地上报车辆状态信息,而且还可以缩短上报时延。In the embodiment of the present invention, the vehicle terminal device forms a MAC PDU by means of a MAC CE, and is carried on the PUSCH to report to the network side device. When the modification of the existing protocol is relatively small, the vehicle status information can be reported flexibly, independently and accurately. And can also shorten the reporting delay.
可选地,作为一个实施例,所述发送器640还用于:向所述至少一个车辆终端设备发送配置参数信息,所述配置参数信息用于指示所述至少一个车辆终端设备发送的车辆状态信息需要包括所述车辆终端设备所属的车辆的位置信息;其中,所述接收器630具体用于:接收所述至少一个车辆终端设备中每个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车 辆状态信息包括所述车辆终端设备所属的车辆的位置信息。Optionally, as an embodiment, the transmitter 640 is further configured to: send configuration parameter information to the at least one vehicle terminal device, where the configuration parameter information is used to indicate a vehicle status sent by the at least one vehicle terminal device The information needs to include the location information of the vehicle to which the vehicle terminal device belongs; wherein the receiver 630 is specifically configured to: receive a vehicle state that is sent by each of the at least one vehicle terminal device according to the configuration parameter information. Information, the car The vehicle status information includes location information of the vehicle to which the vehicle terminal device belongs.
本发明实施例中,网络侧设备为车辆终端设备发送指示车辆状态信息的内容的配置参数信息,然后车辆终端设备能够根据网络侧设备配置的参数向网络侧设备上报车辆的车辆状态信息。这样车辆终端设备可以灵活地根据网络侧设备的需要上报车辆的状态信息。In the embodiment of the present invention, the network side device sends configuration parameter information indicating the content of the vehicle state information to the vehicle terminal device, and then the vehicle terminal device can report the vehicle state information of the vehicle to the network side device according to the parameter configured by the network side device. In this way, the vehicle terminal device can flexibly report the state information of the vehicle according to the needs of the network side device.
可选地,作为一个实施例,所述配置参数信息还用于指示所述至少一个车辆终端设备发送车辆状态信息的周期;其中,所述接收器630具体用于:接收所述至少一个车辆终端设备按照所述周期发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所述的车辆的位置信息。Optionally, as an embodiment, the configuration parameter information is further used to indicate a period in which the at least one vehicle terminal device sends the vehicle state information, where the receiver 630 is specifically configured to: receive the at least one vehicle terminal. The vehicle state information transmitted by the device according to the cycle, the vehicle state information including location information of the vehicle described by the vehicle terminal device.
本发明实施例中,车辆终端设备可以根据网络侧设备发送的配置参数中指示的周期向网络车设备上报车辆的状态信息,从而可以及时更新网络侧设备上记录的车辆状态信息,以使得网络侧设备可以根据最新车辆状态信息更准确地为车辆终端设备分配VDC无线资源。In the embodiment of the present invention, the vehicle terminal device can report the state information of the vehicle to the network vehicle device according to the period indicated in the configuration parameter sent by the network side device, so that the vehicle state information recorded on the network side device can be updated in time to make the network side The device can more accurately allocate VDC radio resources to the vehicle terminal equipment based on the latest vehicle status information.
可选地,作为一个实施例,所述配置参数信息还用于指示所述至少一个车辆终端设备发送的车辆状态信息的最大字节数;其中,所述接收器630具体用于:接收所述至少一个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息,所述车辆状态信息的字节数小于或等于所述最大字节数。Optionally, as an embodiment, the configuration parameter information is further used to indicate a maximum number of bytes of vehicle state information sent by the at least one vehicle terminal device, where the receiver 630 is specifically configured to: receive the Vehicle state information transmitted by the at least one vehicle terminal device according to the configuration parameter information, the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs, and the number of bytes of the vehicle state information is less than or equal to the maximum The number of bytes.
本发明实施例中,网络侧设备为车辆终端设备指示上报的车辆状态信息的最大字节数,然后车辆终端设备可以根据该最大字节数上报车辆状态信息,从而可以避免车辆终端设备发送超过最大字节数的车辆状态信息而导致的信息的丢失。In the embodiment of the present invention, the network side device indicates the maximum number of bytes of the reported vehicle state information for the vehicle terminal device, and then the vehicle terminal device can report the vehicle state information according to the maximum number of bytes, thereby preventing the vehicle terminal device from transmitting more than the maximum. Loss of information caused by the number of bytes of vehicle status information.
可选地,作为一个实施例,所述处理器620还用于根据所述网络侧设备的小区覆盖范围确定所述最大字节数。Optionally, as an embodiment, the processor 620 is further configured to determine the maximum number of bytes according to a cell coverage of the network side device.
本发明实施例中,根据小区覆盖范围灵活确定车辆状态信息的最大字节数,可以合理利用携带车辆状态信息的资源,提高携带车辆状态信息的资源的利用率。In the embodiment of the present invention, the maximum number of bytes of the vehicle state information is flexibly determined according to the coverage of the cell, and the resource carrying the vehicle state information can be reasonably utilized to improve the utilization rate of the resource carrying the vehicle state information.
可选地,作为一个实施例,所述配置参数信息还用于指示所述车辆状态信息中需要包含车辆的方向信息、车辆的速度信息、车辆的加速度信息和车辆所在海拔信息中的至少一种;其中,所述接收器630具体用于:所述接收所述至少一个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所 述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息和以下信息中的至少一种:所述车辆的方向信息、所述车辆的速度信息、所述车辆的加速度信息和所述车辆的地理高度信息。Optionally, as an embodiment, the configuration parameter information is further used to indicate at least one of the vehicle state information that needs to include direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and altitude information of the vehicle. The receiver 630 is specifically configured to: receive the vehicle state information that is sent by the at least one vehicle terminal device according to the configuration parameter information, where The vehicle state information includes at least one of position information of the vehicle to which the vehicle terminal device belongs and information of: direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and the vehicle Geographical height information.
本发明实施例中,车辆终端设备根据网络侧设备的配置参数信息的指示上报车辆的速度信息或加速度信息时,可以降低车辆终端快速驶出小区带来的频繁切换问题;上报方向信息时,可以使得网络侧设备能够判断车辆的行驶轨迹,以进行车辆间的预警提示;上报地理高度信息时,可以使得网络侧设备能够获取车辆更准确的位置信息。In the embodiment of the present invention, when the vehicle terminal device reports the speed information or the acceleration information of the vehicle according to the indication of the configuration parameter information of the network side device, the frequent switching problem caused by the vehicle terminal quickly exiting the cell can be reduced; when the direction information is reported, The network side device can determine the driving trajectory of the vehicle to perform an alert prompt between the vehicles; when the geographic height information is reported, the network side device can obtain more accurate location information of the vehicle.
图7是本发明实施例的车辆终端设备700的示意性结构图。应理解,图7的车辆终端设备700能够执行图2和图3中由车辆终端设备执行的各个步骤,车辆终端设备700包括存储器710、处理器720、接收器730和发送器740。FIG. 7 is a schematic configuration diagram of a vehicle terminal device 700 according to an embodiment of the present invention. It should be understood that the vehicle terminal device 700 of FIG. 7 is capable of performing the various steps performed by the vehicle terminal device of FIGS. 2 and 3, and the vehicle terminal device 700 includes a memory 710, a processor 720, a receiver 730, and a transmitter 740.
存储器710,用于存储程序。The memory 710 is configured to store a program.
处理器720,用于执行存储器710中存储的程序,调动接收器730和发送器740实现所述程序。The processor 720 is configured to execute a program stored in the memory 710, and the receiver 730 and the transmitter 740 are implemented to implement the program.
发送器740,用于向网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。The transmitter 740 is configured to send vehicle state information to the network side device, where the vehicle state information includes location information of the vehicle to which the vehicle terminal device belongs.
发送器740还用于向所述网络侧设备发送资源调度请求,所述资源调度请求用于请求所述网络侧设备为所述车辆分配用于车辆直接通信VDC的无线资源信息。The transmitter 740 is further configured to send a resource scheduling request to the network side device, where the resource scheduling request is used to request the network side device to allocate radio resource information for the vehicle direct communication VDC to the vehicle.
接收器730,用于接收所述网络侧设备发送的控制消息,所述控制消息携带所述无线资源信息。The receiver 730 is configured to receive a control message sent by the network side device, where the control message carries the radio resource information.
本发明实施例中,车辆终端设备向网络侧设备上报车辆的车辆状态信息,以使得网络侧设备可以根据车辆状态信息携带地车辆的位置信息为车辆终端设备分配用于VDC的无线资源。从而可以合理地利用无线资源,提高资源的利用率。In the embodiment of the present invention, the vehicle terminal device reports the vehicle state information of the vehicle to the network side device, so that the network side device can allocate the wireless resource for the VDC to the vehicle terminal device according to the location information of the vehicle carried by the vehicle state information. Therefore, the wireless resources can be reasonably utilized to improve the utilization of resources.
可选地,作为一个实施例,所述发送器740具体用于:通过物理上行共享信道PUSCH上的媒体接入控制MAC协议数据单元PDU中的MAC控制单元CE向所述网络侧设备发送所述车辆状态信息。Optionally, as an embodiment, the transmitter 740 is specifically configured to: send, by using a MAC control unit CE in a medium access control MAC protocol data unit PDU on a physical uplink shared channel PUSCH, to the network side device. Vehicle status information.
本发明实施例中,车辆终端设备通过MAC CE方式组成MAC PDU,并承载在PUSCH向网络侧设备上报,在对现有协议修改比较小的情况下,可 以灵活、独立及精准地上报车辆状态信息,而且还可以缩短上报时延。In the embodiment of the present invention, the vehicle terminal device forms a MAC PDU by means of a MAC CE, and the bearer is reported on the PUSCH to the network side device, and when the modification of the existing protocol is relatively small, Report vehicle status information flexibly, independently and accurately, and reduce reporting delays.
可选地,作为一个实施例,所述接收器730还用于:接收所述网络侧设备发送的配置参数信息,所述配置参数信息用于指示所述车辆终端设备发送的车辆状态信息需要包括所述车辆终端设备所属的车辆的位置信息;其中,所述发送器740具体用于:根据所述配置参数信息,向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。Optionally, as an embodiment, the receiver 730 is further configured to: receive configuration parameter information sent by the network side device, where the configuration parameter information is used to indicate that the vehicle status information sent by the vehicle terminal device needs to include The location information of the vehicle to which the vehicle terminal device belongs; wherein the transmitter 740 is specifically configured to: send the vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes The location information of the vehicle to which the vehicle terminal device belongs is described.
本发明实施例中,车辆终端设备能够根据网络侧设备配置的参数向网络侧设备上报车辆的车辆状态信息。这样车辆终端设备可以灵活地根据网络侧设备的需要上报车辆的状态信息。In the embodiment of the present invention, the vehicle terminal device can report the vehicle state information of the vehicle to the network side device according to the parameter configured by the network side device. In this way, the vehicle terminal device can flexibly report the state information of the vehicle according to the needs of the network side device.
可选地,作为一个实施例,所述配置参数信息还用于指示所述车辆终端设备发送所述车辆状态信息的周期;其中,所述发送器740具体用于:按照所述周期,根据所述配置参数信息,向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。Optionally, as an embodiment, the configuration parameter information is further used to indicate a period in which the vehicle terminal device sends the vehicle state information, where the transmitter 740 is specifically configured to: according to the period, according to the The configuration parameter information is sent to the network side device, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs.
本发明实施例中,车辆终端设备可以根据网络侧设备发送的配置参数中指示的周期向网络车设备上报车辆的状态信息,从而可以及时更新网络侧设备上记录的车辆状态信息,以使得网络侧设备可以根据最新车辆状态信息更准确地为车辆终端设备分配VDC无线资源。In the embodiment of the present invention, the vehicle terminal device can report the state information of the vehicle to the network vehicle device according to the period indicated in the configuration parameter sent by the network side device, so that the vehicle state information recorded on the network side device can be updated in time to make the network side The device can more accurately allocate VDC radio resources to the vehicle terminal equipment based on the latest vehicle status information.
可选地,作为一个实施例,所述发送器740具体用于:在所述车辆发生突发事件时,根据所述配置参数信息向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。Optionally, as an embodiment, the transmitter 740 is specifically configured to: when the emergency occurs in the vehicle, send the vehicle state information to the network side device according to the configuration parameter information, where the vehicle The status information includes location information of the vehicle to which the vehicle terminal device belongs.
本发明实施中,不论配置参数信息是否指示了车辆终端设备发送车辆状态信息的周期,车辆终端设备均可以在车里发送突发事件时上报车辆的状态信息,以便于可以在突发状况下可以更加及时地上报车辆的状态信息。In the implementation of the present invention, regardless of whether the configuration parameter information indicates the period in which the vehicle terminal device transmits the vehicle state information, the vehicle terminal device can report the state information of the vehicle when the emergency event is sent in the vehicle, so that the emergency information can be Report the status information of the vehicle in a more timely manner.
可选地,作为一个实施例,所述配置参数信息还用于指示所述车辆终端设备发送的车辆状态信息的最大字节数;其中,所述发送器740具体用于:根据所述配置参数信息向所述网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息,所述车辆状态信息的字节数小于或等于所述最大字节数。Optionally, as an embodiment, the configuration parameter information is further used to indicate a maximum number of bytes of vehicle state information that is sent by the vehicle terminal device, where the transmitter 740 is specifically configured to: according to the configuration parameter The information transmits vehicle state information to the network side device, the vehicle state information including location information of the vehicle to which the vehicle terminal device belongs, and the number of bytes of the vehicle state information is less than or equal to the maximum number of bytes.
本发明实施例中,车辆终端设备可以根据网络侧设备配置地最大字节数上报车辆状态信息,从而可以避免车辆终端设备发送超过最大字节数的车辆 状态信息而导致的信息的丢失。In the embodiment of the present invention, the vehicle terminal device can report the vehicle state information according to the maximum number of bytes configured by the network side device, so that the vehicle terminal device can be prevented from transmitting the vehicle exceeding the maximum number of bytes. Loss of information caused by status information.
可选地,作为一个实施例,所述接收器730具体用于:接收所述网络侧设备发送的物理下行控制信道PDCCH控制消息,所述PDCCH控制消息携带所述车辆终端设备所属的车辆用于VDC的无线资源信息。Optionally, as an embodiment, the receiver 730 is specifically configured to: receive a physical downlink control channel PDCCH control message sent by the network side device, where the PDCCH control message carries a vehicle to which the vehicle terminal device belongs Radio resource information of the VDC.
可选地,作为一个实施例,所述配置参数信息还用于指示所述车辆状态信息中需要包含所述车辆的方向信息、所述车辆的速度信息、所述车辆的加速度信息和所述车辆的地理高度信息中的至少一种;其中,所述发送器740具体用于:根据所述配置参数信息向所述网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆的位置信息和以下信息中的至少一种:所述车辆的方向信息、所述车辆的速度信息、所述车辆的加速度信息和所述车辆的地理高度信息。Optionally, as an embodiment, the configuration parameter information is further used to indicate that the vehicle state information needs to include direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and the vehicle. At least one of the geographic height information; the transmitter 740 is specifically configured to: send vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes location information of the vehicle And at least one of the following information: direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and geographic height information of the vehicle.
本发明实施例中,车辆终端设备根据网络侧设备的配置参数信息的指示上报车辆的速度信息或加速度信息时,可以降低车辆终端快速驶出小区带来的频繁切换问题;上报方向信息时,可以使得网络侧设备能够判断车辆的行驶轨迹,以进行车辆间的预警提示;上报地理高度信息时,可以使得网络侧设备能够获取车辆更准确的位置信息。In the embodiment of the present invention, when the vehicle terminal device reports the speed information or the acceleration information of the vehicle according to the indication of the configuration parameter information of the network side device, the frequent switching problem caused by the vehicle terminal quickly exiting the cell can be reduced; when the direction information is reported, The network side device can determine the driving trajectory of the vehicle to perform an alert prompt between the vehicles; when the geographic height information is reported, the network side device can obtain more accurate location information of the vehicle.
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本发明的范围。Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.
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。A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.
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。 In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, 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. In addition, 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.
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。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.
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。In addition, 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.
所述功能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。The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used 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. .
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以权利要求的保护范围为准。 The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims (38)

  1. 一种通信方法,其特征在于,包括:A communication method, comprising:
    网络侧设备接收至少一个车辆终端设备发送的资源调度请求,所述资源调度请求用于请求所述网络侧设备为所述资源调度请求对应的车辆终端设备分配用于车辆间直接通信VDC的无线资源;The network side device receives a resource scheduling request sent by the at least one vehicle terminal device, where the resource scheduling request is used to request the network side device to allocate a radio resource for the inter-vehicle direct communication VDC for the vehicle terminal device corresponding to the resource scheduling request. ;
    所述网络侧设备接收所述至少一个车辆终端设备发送的车辆状态信息,所述车辆状态信息包括所述车辆状态信息对应的车辆的位置信息;Receiving, by the network side device, vehicle state information sent by the at least one vehicle terminal device, where the vehicle state information includes location information of the vehicle corresponding to the vehicle state information;
    所述网络侧设备根据所述车辆状态信息为所述至少一个车辆终端设备分配用于VDC的无线资源;The network side device allocates a radio resource for the VDC to the at least one vehicle terminal device according to the vehicle state information;
    所述网络侧设备向所述至少一个车辆终端设备发送控制消息,所述控制消息携带所述控制消息对应的车辆终端设备用于VDC的无线资源的信息。The network side device sends a control message to the at least one vehicle terminal device, where the control message carries information of the radio resource used by the vehicle terminal device corresponding to the control message for the VDC.
  2. 如权利要求1所述的通信方法,其特征在于,所述网络侧设备根据所述车辆状态信息为所述至少一个车辆终端设备分配用于VDC的无线资源,包括:The communication method according to claim 1, wherein the network side device allocates radio resources for the VDC to the at least one vehicle terminal device according to the vehicle state information, including:
    所述网络侧设备根据所述至少一个车辆终端设备所属的车辆的位置信息,为所述至少一个车辆终端设备中不同的车辆终端设备分配相同的用于VDC的无线资源。The network side device allocates the same wireless resource for the VDC to different vehicle terminal devices in the at least one vehicle terminal device according to the location information of the vehicle to which the at least one vehicle terminal device belongs.
  3. 如权利要求1或2所述的通信方法,其特征在于,所述网络侧设备向所述至少一个车辆终端设备发送控制消息,包括:The communication method according to claim 1 or 2, wherein the network side device sends a control message to the at least one vehicle terminal device, including:
    所述网络侧设备根据所述至少一个车辆终端设备所属的车辆的位置信息,确定向所述至少一个车辆终端设备发送所述控制消息的先后顺序;Determining, by the network side device, a sequence of sending the control message to the at least one vehicle terminal device according to location information of the vehicle to which the at least one vehicle terminal device belongs;
    所述网络侧设备按照所述先后顺序向所述至少一个车辆终端设备发送所述控制消息。The network side device sends the control message to the at least one vehicle terminal device according to the sequence.
  4. 如权利要求1至3中任一项所述的通信方法,其特征在于,所述网络侧设备接收所述至少一个车辆终端设备发送的车辆状态信息,包括:The communication method according to any one of claims 1 to 3, wherein the receiving, by the network side device, the vehicle status information sent by the at least one vehicle terminal device comprises:
    所述网络侧设备在资源池的第一调度周期内接收所述至少一个车辆终端设备发送的车辆状态信息;Receiving, by the network side device, vehicle state information sent by the at least one vehicle terminal device in a first scheduling period of the resource pool;
    所述网络侧设备向所述至少一个车辆终端设备发送控制消息,包括:Sending, by the network side device, the control message to the at least one vehicle terminal device, including:
    所述网络侧设备在所述第一调度周期内的第M个至第N个下行子帧向所述至少一个车辆终端设备发送控制消息,所述控制消息承载于物理下行控制信道PDCCH,所述第一调度周期内包括N个下行子帧,1≤M≤N。 The network side device sends a control message to the at least one vehicle terminal device in the Mth to the Nth downlink subframes in the first scheduling period, where the control message is carried on a physical downlink control channel PDCCH, The first scheduling period includes N downlink subframes, and 1≤M≤N.
  5. 如权利要求1至3中任一项所述的通信方法,其特征在于,所述网络侧设备接收所述至少一个车辆终端设备发送的车辆状态信息,包括:The communication method according to any one of claims 1 to 3, wherein the receiving, by the network side device, the vehicle status information sent by the at least one vehicle terminal device comprises:
    所述网络侧设备在资源池的第一调度周期内接收所述至少一个车辆终端设备发送的车辆状态信息;Receiving, by the network side device, vehicle state information sent by the at least one vehicle terminal device in a first scheduling period of the resource pool;
    所述网络侧设备所述向所述至少一个车辆终端设备发送控制消息,包括:The sending, by the network side device, the control message to the at least one vehicle terminal device includes:
    所述网络侧设备在所述第一调度周期的下一个调度周期向所述至少一个车辆终端设备发送控制消息,所述控制信息承载于PDCCH。The network side device sends a control message to the at least one vehicle terminal device in a next scheduling period of the first scheduling period, where the control information is carried on the PDCCH.
  6. 如权利要求1至5中任一项所述的通信方法,其特征在于,所述网络侧设备接收所述至少一个车辆终端设备发送的车辆状态信息,包括:The communication method according to any one of claims 1 to 5, wherein the receiving, by the network side device, the vehicle status information sent by the at least one vehicle terminal device comprises:
    所述网络侧设备接收所述至少一个车辆终端设备在物理上行共享信道PUSCH上发送的、携带于媒体接入控制MAC协议数据单元PDU中的MAC控制单元CE中的车辆状态信息。The network side device receives vehicle state information that is sent by the at least one vehicle terminal device on the physical uplink shared channel PUSCH and carried in the MAC control unit CE in the medium access control MAC protocol data unit PDU.
  7. 如权利要求1至6中任一项所述的通信方法,其特征在于,在所述网络侧设备接收至少一个车辆终端设备发送的车辆状态信息之前,所述通信方法还包括:The communication method according to any one of claims 1 to 6, wherein before the network side device receives the vehicle state information transmitted by the at least one vehicle terminal device, the communication method further includes:
    所述网络侧设备向所述至少一个车辆终端设备发送配置参数信息,所述配置参数信息用于指示所述至少一个车辆终端设备发送的车辆状态信息需要包括所述车辆终端设备所属的车辆的位置信息;The network side device sends configuration parameter information to the at least one vehicle terminal device, where the configuration parameter information is used to indicate that the vehicle state information sent by the at least one vehicle terminal device needs to include the location of the vehicle to which the vehicle terminal device belongs information;
    其中,所述网络侧设备接收至少一个车辆终端设备发送的车辆状态信息,包括:The network side device receives the vehicle status information sent by the at least one vehicle terminal device, and includes:
    所述网络侧设备接收所述至少一个车辆终端设备中每个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。The network side device receives vehicle state information transmitted by each of the at least one vehicle terminal device according to the configuration parameter information, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs.
  8. 如权利要求7所述的通信方法,其特征在于,所述配置参数信息还用于指示所述至少一个车辆终端设备发送车辆状态信息的周期;The communication method according to claim 7, wherein the configuration parameter information is further used to indicate a period in which the at least one vehicle terminal device transmits vehicle state information;
    其中,所述网络侧设备接收所述至少一个车辆终端设备中每个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息,包括:The network side device receives vehicle state information that is sent by each of the at least one vehicle terminal device according to the configuration parameter information, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs. ,include:
    所述网络侧设备接收所述至少一个车辆终端设备按照所述周期发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所述的车辆的位置 信息。The network side device receives vehicle state information that is sent by the at least one vehicle terminal device according to the cycle, and the vehicle state information includes a location of the vehicle that is described by the vehicle terminal device information.
  9. 如权利要求7或8所述的通信方法,其特征在于,所述配置参数信息还用于指示所述至少一个车辆终端设备发送的车辆状态信息的最大字节数;The communication method according to claim 7 or 8, wherein the configuration parameter information is further used to indicate a maximum number of bytes of vehicle state information transmitted by the at least one vehicle terminal device;
    其中,所述网络侧设备接收所述至少一个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备对应的车辆的位置信息,包括:The network side device receives the vehicle state information that is sent by the at least one vehicle terminal device according to the configuration parameter information, and the vehicle state information includes location information of the vehicle corresponding to the vehicle terminal device, including:
    所述网络侧设备接收所述至少一个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息,所述车辆状态信息的字节数小于或等于所述最大字节数。Receiving, by the network side device, vehicle state information that is sent by the at least one vehicle terminal device according to the configuration parameter information, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs, and words of the vehicle state information The number of sections is less than or equal to the maximum number of bytes.
  10. 如权利要求9所述的通信方法,其特征在于,所述通信方法还包括:The communication method according to claim 9, wherein the communication method further comprises:
    所述网络侧设备根据所述网络侧设备的小区覆盖范围确定所述最大字节数。The network side device determines the maximum number of bytes according to the cell coverage of the network side device.
  11. 如权利要求7至10中任一项所述的通信方法,其特征在于,所述配置参数信息还用于指示所述车辆状态信息中需要包含车辆的方向信息、车辆的速度信息、车辆的加速度信息和车辆所在海拔信息中的至少一种;The communication method according to any one of claims 7 to 10, wherein the configuration parameter information is further used to indicate that the vehicle state information needs to include direction information of the vehicle, speed information of the vehicle, and acceleration of the vehicle. At least one of information and altitude information of the vehicle;
    其中,所述网络侧设备接收所述至少一个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备对应的位置信息,包括:The network side device receives the vehicle state information that is sent by the at least one vehicle terminal device according to the configuration parameter information, and the vehicle state information includes location information corresponding to the vehicle terminal device, and includes:
    所述网络侧设备接收所述至少一个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息和以下信息中的至少一种:所述车辆的方向信息、所述车辆的速度信息、所述车辆的加速度信息和所述车辆的地理高度信息。Receiving, by the network side device, vehicle state information that is sent by the at least one vehicle terminal device according to the configuration parameter information, where the vehicle state information includes at least one of location information of a vehicle to which the vehicle terminal device belongs and the following information : direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and geographic height information of the vehicle.
  12. 一种通信方法,其特征在于,包括:A communication method, comprising:
    车辆终端设备向网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息;The vehicle terminal device transmits vehicle state information to the network side device, where the vehicle state information includes location information of the vehicle to which the vehicle terminal device belongs;
    所述车辆终端设备向所述网络侧设备发送资源调度请求,所述资源调度请求用于请求所述网络侧设备为所述车辆分配用于车辆直接通信VDC的无线资源信息;The vehicle terminal device sends a resource scheduling request to the network side device, where the resource scheduling request is used to request the network side device to allocate wireless resource information for the vehicle direct communication VDC for the vehicle;
    所述车辆终端设备接收所述网络侧设备发送的控制消息,所述控制消息携带所述无线资源信息。 The vehicle terminal device receives a control message sent by the network side device, where the control message carries the wireless resource information.
  13. 如权利要求12所述的通信方法,其特征在于,所述车辆终端设备向网络侧设备发送车辆状态信息,包括:The communication method according to claim 12, wherein the vehicle terminal device transmits the vehicle state information to the network side device, including:
    所述车辆终端设备通过物理上行共享信道PUSCH上的媒体接入控制MAC协议数据单元PDU中的MAC控制单元CE向所述网络侧设备发送所述车辆状态信息。The vehicle terminal device transmits the vehicle state information to the network side device through a MAC control unit CE in a medium access control MAC protocol data unit PDU on a physical uplink shared channel PUSCH.
  14. 如权利要求12或13所述的通信方法,其特征在于,在所述车辆终端设备向网络侧设备发送车辆状态信息之前,所述通信方法还包括:The communication method according to claim 12 or 13, wherein before the vehicle terminal device transmits the vehicle state information to the network side device, the communication method further includes:
    所述车辆终端设备接收所述网络侧设备发送的配置参数信息,所述配置参数信息用于指示所述车辆终端设备发送的车辆状态信息需要包括所述车辆终端设备所属的车辆的位置信息;The vehicle terminal device receives configuration parameter information sent by the network side device, where the configuration parameter information is used to indicate that the vehicle state information sent by the vehicle terminal device needs to include location information of a vehicle to which the vehicle terminal device belongs;
    其中,所述车辆终端设备向所述网络侧设备发送车辆状态信息,包括:The vehicle terminal device sends the vehicle status information to the network side device, including:
    所述车辆终端设备根据所述配置参数信息,向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。The vehicle terminal device transmits the vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs.
  15. 如权利要求14所述的通信方法,其特征在于,所述配置参数信息还用于指示所述车辆终端设备发送所述车辆状态信息的周期;The communication method according to claim 14, wherein the configuration parameter information is further used to indicate a period in which the vehicle terminal device transmits the vehicle state information;
    其中,所述车辆终端设备根据所述配置参数信息向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息,包括:The vehicle terminal device sends the vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes location information of the vehicle to which the vehicle terminal device belongs, including:
    所述车辆终端设备按照所述周期,根据所述配置参数信息,向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。The vehicle terminal device transmits the vehicle state information to the network side device according to the configuration parameter information according to the period, and the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs.
  16. 如权利要求14所述的通信方法,其特征在于,所述车辆终端设备根据所述配置参数信息,向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息,包括:The communication method according to claim 14, wherein the vehicle terminal device transmits the vehicle state information to the network side device according to the configuration parameter information, the vehicle state information including the vehicle terminal device Location information of the vehicle to which it belongs, including:
    所述车辆终端设备在所述车辆发生突发事件时,根据所述配置参数信息向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。The vehicle terminal device transmits the vehicle state information to the network side device according to the configuration parameter information when the vehicle has an emergency event, where the vehicle state information includes a location of a vehicle to which the vehicle terminal device belongs information.
  17. 如权利要求14至16中任一项所述的通信方法,其特征在于,所述配置参数信息还用于指示所述车辆终端设备发送的车辆状态信息的最大字节数; The communication method according to any one of claims 14 to 16, wherein the configuration parameter information is further used to indicate a maximum number of bytes of vehicle state information transmitted by the vehicle terminal device;
    其中,所述车辆终端设备根据所述配置参数信息向所述网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息,包括:The vehicle terminal device sends the vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes the location information of the vehicle to which the vehicle terminal device belongs, including:
    所述车辆终端设备根据所述配置参数信息向所述网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息,所述车辆状态信息的字节数小于或等于所述最大字节数。The vehicle terminal device transmits vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs, and the number of bytes of the vehicle state information is less than Or equal to the maximum number of bytes.
  18. 如权利要求12至17中任一项所述的通信方法,其特征在于,所述车辆终端设备接收所述网络侧设备发送的控制消息,包括:The communication method according to any one of claims 12 to 17, wherein the receiving, by the vehicle terminal device, the control message sent by the network side device comprises:
    所述车辆终端设备接收所述网络侧设备发送的物理下行控制信道PDCCH控制消息,所述PDCCH控制消息携带所述车辆终端设备所属的车辆用于VDC的无线资源信息。The vehicle terminal device receives a physical downlink control channel PDCCH control message sent by the network side device, where the PDCCH control message carries radio resource information used by the vehicle to which the vehicle terminal device belongs for the VDC.
  19. 如权利要求12至18中任一项所述的通信方法,其特征在于,所述配置参数信息还用于指示所述车辆状态信息中需要包含所述车辆的方向信息、所述车辆的速度信息、所述车辆的加速度信息和所述车辆的地理高度信息中的至少一种;The communication method according to any one of claims 12 to 18, wherein the configuration parameter information is further used to indicate that the vehicle state information needs to include direction information of the vehicle and speed information of the vehicle. At least one of acceleration information of the vehicle and geographic height information of the vehicle;
    其中,所述车辆终端设备向所述网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息包括:The vehicle terminal device sends the vehicle state information to the network side device, where the vehicle state information includes the location information of the vehicle to which the vehicle terminal device belongs, including:
    所述车辆终端设备根据所述配置参数信息向所述网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆的位置信息和以下信息中的至少一种:所述车辆的方向信息、所述车辆的速度信息、所述车辆的加速度信息和所述车辆的地理高度信息。The vehicle terminal device transmits vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes at least one of position information of the vehicle and following information: direction information of the vehicle, Speed information of the vehicle, acceleration information of the vehicle, and geographic height information of the vehicle.
  20. 一种网络侧设备,其特征在于,包括:A network side device, comprising:
    接收模块,用于接收至少一个车辆终端设备发送的资源调度请求,所述资源调度请求用于请求所述网络侧设备为所述资源调度请求对应的车辆终端设备分配用于车辆间直接通信VDC的无线资源;a receiving module, configured to receive a resource scheduling request sent by the at least one vehicle terminal device, where the resource scheduling request is used to request the network side device to allocate, for the vehicle terminal device corresponding to the resource scheduling request, an inter-vehicle direct communication VDC Wireless resources;
    所述接收模块还用于接收所述至少一个车辆终端设备发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息;The receiving module is further configured to receive vehicle state information sent by the at least one vehicle terminal device, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs;
    分配模块,用于根据所述车辆状态信息为所述至少一个车辆终端设备分配用于VDC的无线资源;a distribution module, configured to allocate, for the at least one vehicle terminal device, a radio resource for the VDC according to the vehicle state information;
    发送模块,用于向所述至少一个车辆终端设备发送控制消息,所述控制消息携带所述控制消息对应的车辆终端设备用于VDC的无线资源的信息。 And a sending module, configured to send, to the at least one vehicle terminal device, a control message, where the control message carries information about a radio resource used by the vehicle terminal device corresponding to the control message for the VDC.
  21. 如权利要求20所述的网络侧设备,其特征在于,所述分配模块具体用于:根据所述至少一个车辆终端设备所属的车辆的位置信息,为所述至少一个车辆终端设备中不同的车辆终端设备分配相同的用于VDC的无线资源。The network side device according to claim 20, wherein the distribution module is configured to: different vehicles in the at least one vehicle terminal device according to location information of the vehicle to which the at least one vehicle terminal device belongs The terminal device allocates the same radio resource for the VDC.
  22. 如权利要求20或21所述的网络侧设备,其特征在于,所述发送模块具体用于:The network side device according to claim 20 or 21, wherein the sending module is specifically configured to:
    根据所述至少一个车辆终端设备所属的车辆的位置信息,确定向所述至少一个车辆终端设备发送所述控制消息的先后顺序;Determining a sequence of sending the control message to the at least one vehicle terminal device according to location information of the vehicle to which the at least one vehicle terminal device belongs;
    按照所述先后顺序向所述至少一个车辆终端设备发送所述控制消息。The control message is sent to the at least one vehicle terminal device in the order described.
  23. 如权利要求20至22中任一项所述的网络侧设备,其特征在于,所述接收模块具体用于:在资源池的第一调度周期内接收所述至少一个车辆终端设备发送的车辆状态信息;The network side device according to any one of claims 20 to 22, wherein the receiving module is configured to: receive a vehicle state sent by the at least one vehicle terminal device in a first scheduling period of the resource pool information;
    所述发送模块具体用于:在所述第一调度周期内的第M个至第N个下行子帧向所述至少一个车辆终端设备发送控制消息,所述控制消息承载于物理下行控制信道PDCCH,所述第一调度周期内包括N个下行子帧,1≤M≤N。The sending module is specifically configured to send, by using the Mth to the Nth downlink subframes in the first scheduling period, a control message to the at least one vehicle terminal device, where the control message is carried on a physical downlink control channel PDCCH. The first scheduling period includes N downlink subframes, where 1≤M≤N.
  24. 如权利要求20至22中任一项所述的网络侧设备,其特征在于,所接收模块具体用于:在资源池的第一调度周期内接收所述至少一个车辆终端设备发送的车辆状态信息;The network side device according to any one of claims 20 to 22, wherein the receiving module is configured to: receive vehicle state information sent by the at least one vehicle terminal device in a first scheduling period of the resource pool ;
    所述发送模块具体用于:在所述第一调度周期的下一个调度周期向所述至少一个车辆终端设备发送控制消息,所述控制消息承载于物理下行控制信道PDCCH。The sending module is specifically configured to send a control message to the at least one vehicle terminal device in a next scheduling period of the first scheduling period, where the control message is carried on a physical downlink control channel PDCCH.
  25. 如权利要求20至24中任一项所述的网络侧设备,其特征在于,所述接收模块具体用于:接收所述至少一个车辆终端设备在物理上行共享信道PUSCH上发送的、携带于媒体接入控制MAC协议数据单元PDU中的MAC控制单元CE中的车辆状态信息。The network-side device according to any one of claims 20 to 24, wherein the receiving module is configured to: receive, transmit, and carry the at least one vehicle terminal device on a physical uplink shared channel PUSCH Access control vehicle status information in the MAC Control Unit CE in the MAC Protocol Data Unit PDU.
  26. 如权利要求20至25中任一项所述的网络侧设备,其特征在于,所述发送模块还用于:向所述至少一个车辆终端设备发送配置参数信息,所述配置参数信息用于指示所述至少一个车辆终端设备发送的车辆状态信息需要包括所述车辆终端设备所属的车辆的位置信息;The network side device according to any one of claims 20 to 25, wherein the transmitting module is further configured to: send configuration parameter information to the at least one vehicle terminal device, where the configuration parameter information is used to indicate The vehicle state information transmitted by the at least one vehicle terminal device needs to include location information of a vehicle to which the vehicle terminal device belongs;
    其中,所述接收模块具体用于:接收所述至少一个车辆终端设备中每个 车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。The receiving module is specifically configured to: receive each of the at least one vehicle terminal device The vehicle terminal device transmits vehicle state information according to the configuration parameter information, and the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs.
  27. 如权利要求26所述的网络侧设备,其特征在于,所述配置参数信息还用于指示所述至少一个车辆终端设备发送车辆状态信息的周期;The network side device according to claim 26, wherein the configuration parameter information is further used to indicate a period in which the at least one vehicle terminal device transmits vehicle state information;
    其中,所述接收模块具体用于:接收所述至少一个车辆终端设备按照所述周期发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所述的车辆的位置信息。The receiving module is specifically configured to: receive vehicle state information that is sent by the at least one vehicle terminal device according to the cycle, and the vehicle state information includes location information of the vehicle that is described by the vehicle terminal device.
  28. 如权利要求26或27所述的网络侧设备,其特征在于,所述配置参数信息还用于指示所述至少一个车辆终端设备发送的车辆状态信息的最大字节数;The network side device according to claim 26 or 27, wherein the configuration parameter information is further used to indicate a maximum number of bytes of vehicle state information transmitted by the at least one vehicle terminal device;
    其中,所述接收模块具体用于:接收所述至少一个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息,所述车辆状态信息的字节数小于或等于所述最大字节数。The receiving module is specifically configured to: receive vehicle state information that is sent by the at least one vehicle terminal device according to the configuration parameter information, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs, The number of bytes of vehicle status information is less than or equal to the maximum number of bytes.
  29. 如权利要求28所述的网络侧设备,其特征在于,所述网络侧设备还包括确定模块,用于根据所述网络侧设备的小区覆盖范围确定所述最大字节数。The network side device according to claim 28, wherein the network side device further comprises a determining module, configured to determine the maximum number of bytes according to a cell coverage of the network side device.
  30. 如权利要求26至29中任一项所述的网络侧设备,其特征在于,所述配置参数信息还用于指示所述车辆状态信息中需要包含车辆的方向信息、车辆的速度信息、车辆的加速度信息和车辆所在海拔信息中的至少一种;The network side device according to any one of claims 26 to 29, wherein the configuration parameter information is further used to indicate that the vehicle state information needs to include direction information of the vehicle, speed information of the vehicle, and vehicle At least one of acceleration information and altitude information of the vehicle;
    其中,所述接收模块具体用于:所述接收所述至少一个车辆终端设备根据所述配置参数信息发送的车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息和以下信息中的至少一种:所述车辆的方向信息、所述车辆的速度信息、所述车辆的加速度信息和所述车辆的地理高度信息。The receiving module is specifically configured to: receive the vehicle state information that is sent by the at least one vehicle terminal device according to the configuration parameter information, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs At least one of the following information: direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and geographic height information of the vehicle.
  31. 一种车辆终端设备,其特征在于,包括:A vehicle terminal device, comprising:
    发送模块,用于向网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息;a sending module, configured to send vehicle state information to the network side device, where the vehicle state information includes location information of the vehicle to which the vehicle terminal device belongs;
    所述发送模块还用于向所述网络侧设备发送资源调度请求,所述资源调度请求用于请求所述网络侧设备为所述车辆分配用于车辆直接通信VDC的无线资源信息; The sending module is further configured to send a resource scheduling request to the network side device, where the resource scheduling request is used to request the network side device to allocate radio resource information for the vehicle direct communication VDC to the vehicle;
    接收模块,用于接收所述网络侧设备发送的控制消息,所述控制消息携带所述无线资源信息。The receiving module is configured to receive a control message sent by the network side device, where the control message carries the wireless resource information.
  32. 如权利要求31所述的车辆终端设备,其特征在于,所述发送模块具体用于:通过物理上行共享信道PUSCH上的媒体接入控制MAC协议数据单元PDU中的MAC控制单元CE向所述网络侧设备发送所述车辆状态信息。The vehicle terminal device according to claim 31, wherein the sending module is configured to: use a MAC control unit CE in a medium access control MAC protocol data unit PDU on a physical uplink shared channel PUSCH to the network The side device transmits the vehicle status information.
  33. 如权利要求31或32所述的车辆终端设备,其特征在于,所述接收模块还用于:接收所述网络侧设备发送的配置参数信息,所述配置参数信息用于指示所述车辆终端设备发送的车辆状态信息需要包括所述车辆终端设备所属的车辆的位置信息;The vehicle terminal device according to claim 31 or 32, wherein the receiving module is further configured to: receive configuration parameter information sent by the network side device, where the configuration parameter information is used to indicate the vehicle terminal device The transmitted vehicle status information needs to include location information of the vehicle to which the vehicle terminal device belongs;
    其中,所述发送模块具体用于:根据所述配置参数信息,向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。The sending module is specifically configured to: send the vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs.
  34. 如权利要求33所述的车辆终端设备,其特征在于,所述配置参数信息还用于指示所述车辆终端设备发送所述车辆状态信息的周期;The vehicle terminal device according to claim 33, wherein the configuration parameter information is further used to indicate a period in which the vehicle terminal device transmits the vehicle state information;
    其中,所述发送模块具体用于:按照所述周期,根据所述配置参数信息,向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。The sending module is specifically configured to: send the vehicle state information to the network side device according to the configuration parameter information according to the period, where the vehicle state information includes a vehicle to which the vehicle terminal device belongs location information.
  35. 如权利要求33所述的车辆终端设备,其特征在于,所述发送模块具体用于:在所述车辆发生突发事件时,根据所述配置参数信息向所述网络侧设备发送所述车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息。The vehicle terminal device according to claim 33, wherein the transmitting module is configured to: when the vehicle has an emergency, send the vehicle status to the network side device according to the configuration parameter information. Information, the vehicle status information includes location information of a vehicle to which the vehicle terminal device belongs.
  36. 如权利要求33至35中任一项所述的车辆终端设备,其特征在于,所述配置参数信息还用于指示所述车辆终端设备发送的车辆状态信息的最大字节数;The vehicle terminal device according to any one of claims 33 to 35, wherein the configuration parameter information is further used to indicate a maximum number of bytes of vehicle state information transmitted by the vehicle terminal device;
    其中,所述发送模块具体用于:根据所述配置参数信息向所述网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆终端设备所属的车辆的位置信息,所述车辆状态信息的字节数小于或等于所述最大字节数。The sending module is specifically configured to: send vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes location information of a vehicle to which the vehicle terminal device belongs, the vehicle state information The number of bytes is less than or equal to the maximum number of bytes.
  37. 如权利要求31至36中任一项所述的车辆终端设备,其特征在于,所述接收模块具体用于:接收所述网络侧设备发送的物理下行控制信道PDCCH控制消息,所述PDCCH控制消息携带所述车辆终端设备所属的车 辆用于VDC的无线资源信息。The vehicle terminal device according to any one of claims 31 to 36, wherein the receiving module is configured to: receive a physical downlink control channel PDCCH control message sent by the network side device, the PDCCH control message Carrying the vehicle to which the vehicle terminal device belongs Radio resource information for the VDC.
  38. 如权利要求31至37中任一项所述的车辆终端设备,其特征在于,所述配置参数信息还用于指示所述车辆状态信息中需要包含所述车辆的方向信息、所述车辆的速度信息、所述车辆的加速度信息和所述车辆的地理高度信息中的至少一种;The vehicle terminal device according to any one of claims 31 to 37, wherein the configuration parameter information is further configured to indicate that the vehicle state information needs to include direction information of the vehicle, speed of the vehicle At least one of information, acceleration information of the vehicle, and geographic height information of the vehicle;
    其中,所述发送模块具体用于:根据所述配置参数信息向所述网络侧设备发送车辆状态信息,所述车辆状态信息包括所述车辆的位置信息和以下信息中的至少一种:所述车辆的方向信息、所述车辆的速度信息、所述车辆的加速度信息和所述车辆的地理高度信息。 The sending module is specifically configured to: send vehicle state information to the network side device according to the configuration parameter information, where the vehicle state information includes at least one of location information of the vehicle and the following information: Direction information of the vehicle, speed information of the vehicle, acceleration information of the vehicle, and geographic height information of the vehicle.
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