WO2017050154A1 - 用于道路车辆的通讯系统的传输方法及装置 - Google Patents

用于道路车辆的通讯系统的传输方法及装置 Download PDF

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Publication number
WO2017050154A1
WO2017050154A1 PCT/CN2016/098829 CN2016098829W WO2017050154A1 WO 2017050154 A1 WO2017050154 A1 WO 2017050154A1 CN 2016098829 W CN2016098829 W CN 2016098829W WO 2017050154 A1 WO2017050154 A1 WO 2017050154A1
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information
subframe
resource
vehicle
period
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PCT/CN2016/098829
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English (en)
French (fr)
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王文焕
卢有雄
黄双红
袁明
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中兴通讯股份有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Definitions

  • the present invention relates to the field of communications, and in particular to a method and apparatus for transmitting a communication system for a road vehicle.
  • Workshop communication V2V can be understood as D2D communication between vehicles.
  • D2D communication is the communication mode between equipment and equipment.
  • the difference between workshop communication V2V and equipment communication D2D is that the moving speed is increased, the user concentration is increased, and the reliability is increased. High-level features are required, and conventional D2D communication may not need to consider such demanding delay requirements. Therefore, the optimization of D2D communication delay is the necessary improvement to support V2V.
  • the existing R12 D2D must support V2V design according to the existing The D2D standard is enhanced.
  • the version R12 of the D2D communication in the related art discovers two basic contents in broadcast communication and D2D, wherein the D2D discovery discovery is used to discover (and identify) neighboring D2D terminals; the broadcast communication communication is used for direct communication between.
  • the D2D discovery discovery is used to discover (and identify) neighboring D2D terminals; the broadcast communication communication is used for direct communication between.
  • both UE-based autonomous and scheduling-based implementations are supported.
  • the scheduling-based D2D is required to establish a link with the base station, and the resulting delay is unacceptable for V2V.
  • the resource selection is performed in a freely competitive manner according to the pre-configured resource pool, and the uplink resource of the D2D is limited by the device, and there is a half-duplex problem, that is, cannot be received when transmitting, and is periodically broadcasted for the V2V device.
  • the location, speed and other information must ensure that a certain range of vehicles can listen to each other. Therefore, the collision and non-listening problems caused by free competition and duplex in D2D are more serious in V2V, which seriously affects the reliability of the vehicle.
  • the physical layer communication process of the foregoing LTE Rel-12 D2D communication mode 2 is as follows: the base station allocates a D2D communication control channel (SA (Scheduling Assignment)/PSCCH (Physical Side Link Control Channel)) and a data channel (data, through the SIB).
  • SA Service Assignment
  • PSCCH Physical Side Link Control Channel
  • PSSCH Physical Sidelink Shared Channel
  • UE with D2D data service respectively transmits D2D control signaling and D2D data in the control channel and the data channel resource, wherein the control signaling is used to indicate resource scheduling of the D2D data channel
  • the transmission resources of information, control signaling and data are randomly selected by the transmitting UE in the control resource pool and the data resource pool.
  • R12 If the random selection mechanism of R12 is still used, it will cause collision, and it cannot be received when transmitting. If the vehicles that are close to each other broadcast information at the same time, it will affect the information reception because it cannot be received during transmission. For the emergency broadcast of sudden accidents, due to Resource preemption Sending a collision and not receiving it correctly can cause serious accidents.
  • the communication mechanism of the workshop communication V2V in the related art is prone to the problem that the resource preemption causes a collision.
  • the present invention provides a transmission method and apparatus for a communication system for a road vehicle to at least solve the problems in the related art.
  • a transmission method for a communication system of a road vehicle includes: a terminal acquiring a trigger type of information to be transmitted, wherein the trigger type includes: an event-triggered broadcast and a periodic type. Obtaining the pre-configuration information of the inter-vehicle communication V2V resource pool corresponding to the trigger type; determining the subframe of the to-be-sent information according to the pre-configuration information, and transmitting the to-be-sent information by using the determined subframe.
  • the obtaining the pre-configuration information in the V2V resource pool of the inter-vehicle communication corresponding to the trigger type includes: acquiring the road information of the road where the current vehicle is located where the terminal is located; and acquiring the trigger type event according to the event triggering type Pre-configuration information of the control channel SA1 resource pool in the V2V resource pool corresponding to the road information; if the trigger type is the periodic broadcast event, acquiring the data resource pool in the V2V resource pool corresponding to the road information Configuration information.
  • determining, according to the foregoing pre-configuration information, the subframe of the information to be sent includes: if the trigger type is the periodic broadcast event, acquiring the current vehicle corresponding to the road location information and the vehicle spacing information in the road information. a sub-frame to which the information to be transmitted is determined based on the lane information of the lane in which the vehicle is currently located, the period information in the pre-configuration information, and the subframe number information in the pre-configuration information.
  • the preceding vehicle is a vehicle that is within the above-mentioned inter-listening range and located before the current vehicle head position.
  • determining, according to the lane information of the lane where the current vehicle is located in the road information, the period information in the pre-configuration information, and the subframe number information in the pre-configuration information, determining the subframe of the information to be sent includes: acquiring the current vehicle.
  • the subframe number information is used to read the subframe number corresponding to the lane information and the position relationship from the current period to determine the subframe of the information to be transmitted, where X is a natural number, and the first X subframes are the current period. a subframe that is located before the designated subframe; if the preceding vehicle has no subframe transmission or the broadcast subframe is located in the last Y subframes of the current period in the period information, the subframe number information is used to use the next period of the current period.
  • the information of the periodic broadcast includes at least one of a speed of the vehicle, a position of the vehicle, an acceleration of the vehicle, and a motion track of the vehicle.
  • determining, according to the foregoing pre-configuration information, the subframe to be sent includes: if the trigger type is the event-triggered broadcast, and the terminal broadcasts an event according to a period before acquiring the to-be-sent information, the terminal is configured according to the foregoing
  • the subframe number used by the terminal in the last periodic broadcast determines the resource sequence number in the SA1 resource pool, and broadcasts the scheduling information of the to-be-sent information on the resource determined by the resource sequence number; if the trigger type is the event-triggered broadcast And the terminal does not broadcast the event according to the periodicity before acquiring the information to be sent, the terminal randomly determines the resource sequence number in the SA1 resource pool, and broadcasts the scheduling information of the to-be-sent information on the resource determined by the resource sequence. Or scheduling the scheduling information of the to-be-sent information on a specific resource sequence number.
  • the scheduling information of the to-be-sent information to be broadcasted on the resource determined by the subframe number includes: the terminal generating a notification message for notifying the terminal to occupy the subframe, and sending the notification message to the current vehicle. Other vehicles within the coverage area.
  • the method further includes: after the terminal of the other vehicle receives the notification message, the terminal of the other vehicle follows the notification message.
  • the indicated information of the subframe is selected as a transmission subframe of the terminal of the other vehicle, wherein the selected transmission subframe of the terminal of the other vehicle does not collide with the subframe in which the information to be transmitted is broadcasted.
  • the method further includes: determining, according to the to-be-transmitted information, the retransmission window parameter in the resource sequence number N.
  • N Resend the scheduling information of the information to be sent on the resource sequence number N of the SA2 resource pool after the N resource period P2, where N is a natural number.
  • the method further includes: a maximum time window according to the sequence number of the subframe to be sent according to the information to be sent according to the to-be-transmitted information; and the determined retransmission window parameter If the value is greater than the value of the maximum time window, the retransmission window parameter is estimated by using a positive or negative sequence, and the retransmission window parameter is obtained.
  • the method further includes: If the preset retransmission event is not released, adjust the value of the maximum time window, resend or randomly select the retransmission window, and randomly select the retransmission resource on the SA1 resource pool.
  • the road information includes at least one of the following parameters: a road condition of the road where the current vehicle is located, a type of the road, and a number of vehicles that can be mutually audible.
  • the pre-configuration information of the data resource pool of the inter-vehicle communication V2V resource pool includes: a repetition period P1, an RB indication parameter used to indicate the frequency domain resource, and a subframe offset parameter used to indicate a subframe offset. And a subframe indication parameter within each repetition period.
  • the foregoing subframe offset parameter is used to indicate that the starting point of the repetition period P1 is relative to the starting offset of the D2D frame number/system frame number DFN/SFN#0, or the foregoing subframe offset parameter is used to indicate The offset of the start point of the above repetition period P1 with respect to the PSCCH of the 3GPP R12.
  • each of the foregoing repetition periods P1 includes N (L*C) subframes, where N is used to indicate the number of subframes occupied by the vehicle once to send event information, and N is an integer greater than or equal to 1, L The number of vehicles for indicating vertical mutual hearing, L is an integer greater than or equal to 3, C is used to indicate the number of vehicles that are laterally inter-listening, and C is an integer greater than or equal to 3.
  • the configuration information of the control channel SA1 resource pool of the above-mentioned inter-vehicle communication V2V resource pool includes at least: a resource period P2, an RB minimum parameter for indicating a frequency domain resource, and a subframe indication parameter for indicating a subframe offset.
  • the foregoing subframe indication parameter is used to indicate that the starting point of the resource period P2 of the SA1 resource pool is relative to the starting offset of the D2D frame number/system frame number DFN/SFN#0, or the foregoing subframe indication parameter.
  • the offset from the start point of the resource period P2 of the above SA1 with respect to the PSCCH of the 3GPP R12 is indicated.
  • each of the foregoing SA1 resource pools occupies one time domain subframe, and the subframes of the foregoing SA1 resource pool are divided into M resource units according to frequency domain resources.
  • some of the foregoing M resource units are used for control information of a vehicle alarm, and the foregoing control information is used. Is the scheduling information used to indicate its communication.
  • a transmission apparatus for a communication system of a road vehicle comprising: a first acquisition unit configured to acquire a trigger type of information to be transmitted, wherein the trigger type includes: an event a triggering type broadcast and a periodic broadcast; the second obtaining unit is configured to acquire pre-configuration information of the workshop communication V2V resource pool corresponding to the trigger type; and the processing unit is configured to determine the subframe of the to-be-sent information according to the pre-configuration information And transmitting the above to-be-sent information using the determined subframe.
  • the second acquiring unit includes: a first acquiring module, configured to acquire road information of a road where the current vehicle is located where the terminal is located; and a second acquiring module, configured to: if the trigger type is the event triggering broadcast event, Acquiring the pre-configuration information of the control channel SA1 resource pool in the V2V resource pool corresponding to the road information; the third acquiring module is configured to acquire the foregoing information corresponding to the road information if the trigger type is the periodic broadcast event Pre-configuration information of the data resource pool in the V2V resource pool.
  • the processing unit includes: a range obtaining module, configured to acquire, if the trigger type is the periodic broadcast event, acquire the mutual hearing of the current vehicle corresponding to the road location information and the vehicle spacing information in the road information.
  • a first subframe determining module configured to determine, according to the lane information of the lane where the current vehicle is located in the road information, the period information in the pre-configuration information, and the subframe number information in the pre-configuration information, the child to be sent a frame, wherein the preceding vehicle is a vehicle that is within the above-mentioned mutual listening range and located before the current vehicle head position.
  • the first subframe determining module includes: a relationship acquiring submodule, configured to acquire a broadcast subframe used by the preceding vehicle of the current vehicle, and a positional relationship between the current vehicle and the preceding vehicle; the first subframe is determined a submodule, configured to: if the preceding vehicle has no subframe transmission or the broadcast subframe is located in the first X subframes of the current period in the period information, read the lane information from the current period by using the subframe number information.
  • the second subframe determinant a module, configured to: if the preceding vehicle has no subframe transmission or the broadcast subframe is located in the last Y subframes of the current period in the period information, use the subframe number information to read from the next period of the current period a subframe number of the vacant frequency band corresponding to the lane information and the location relationship to determine a subframe of the information to be sent, where Y is a natural number, Y subframes later located the designated subframe following the subframe above the current cycle.
  • the processing unit includes: a second subframe determining module, configured to: if the trigger type is the event trigger type broadcast, and the terminal broadcasts an event according to a period before acquiring the to-be-sent information, the terminal is configured according to the terminal The subframe number used in the previous period of the broadcast is determined in the SA1 resource pool, and the scheduling information of the to-be-sent information is broadcasted on the resource determined by the resource sequence; the third subframe determining module is set to The trigger type is the event-triggered broadcast, and the terminal does not broadcast the event according to the periodicity before acquiring the information to be sent, the terminal randomly determines the resource serial number in the SA1 resource pool, and broadcasts the resource on the resource determined by the resource serial number.
  • the pre-configuration information of the data resource pool of the inter-vehicle communication V2V resource pool includes: a repetition period P1, an RB indication parameter used to indicate the frequency domain resource, and a subframe offset parameter used to indicate a subframe offset. And each repetition period The inner subframe indicates the parameter.
  • the foregoing subframe offset parameter is used to indicate a starting offset of the starting point of the repetition period P1 relative to the D2D frame number/system frame number DEN/SEN#0, or the foregoing subframe offset parameter is used to indicate The offset of the start point of the above repetition period P1 with respect to the PSCCH of the 3GPP R12.
  • each of the foregoing repetition periods P1 includes N (L*C) subframes, where N is used to indicate the number of subframes occupied by the vehicle once to send event information, and N is an integer greater than or equal to 1, L The number of vehicles for indicating vertical mutual hearing, L is an integer greater than or equal to 3, C is used to indicate the number of vehicles that are laterally inter-listening, and C is an integer greater than or equal to 3.
  • the configuration information of the control channel SA1 resource pool of the above-mentioned inter-vehicle communication V2V resource pool includes at least: a resource period P2, an RB minimum parameter for indicating a frequency domain resource, and a subframe indication parameter for indicating a subframe offset.
  • the foregoing subframe indication parameter is used to indicate that the starting point of the resource period P2 of the SA1 resource pool is relative to the starting offset of the D2D frame number/system frame number DEN/SEN#0, or the foregoing subframe indication parameter.
  • Another embodiment of the present invention provides a computer storage medium storing execution instructions for performing the method in the above embodiments.
  • the pre-configuration information of the V2V resource pool of the inter-vehicle communication corresponding to the trigger type is obtained, and then the subframe for transmitting the information to be sent is determined according to the pre-configuration information corresponding to the trigger type.
  • the subframe sends the information to be sent, and the event triggering broadcast event and the periodic broadcast event determine the subframe for transmitting the information to be sent through the configuration information of different resource pools, thereby solving the problem that the communication mechanism of the workshop communication V2V is easy to generate resources.
  • the preemption leads to the problem of sending collisions, and improves the stability and timeliness of the workshop communication through the workshop communication V2V.
  • FIG. 1 is a flow chart of a transmission method of a communication system for a road vehicle according to an embodiment of the present invention
  • FIG. 2 is a flow chart of an alternative transmission method for a communication system of a road vehicle according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram showing the relationship between the relative positions of vehicle movements in an alternative road according to an embodiment of the present invention
  • 4a is a schematic diagram of a control channel resource pool and a data resource pool in different subframes according to an embodiment of the present invention
  • 4b is a schematic diagram of a control channel resource pool and a data resource pool in the same subframe according to an embodiment of the present invention
  • FIG. 5 is a diagram of a randomly selected subframe of a control channel SA1 resource pool in accordance with an alternative embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a range of least mutual hearing according to an alternative embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a transmission device for a communication system of a road vehicle in accordance with an alternative embodiment of the present invention.
  • FIG. 1 is a flowchart of a transmission method of a communication system for a road vehicle according to an embodiment of the present invention. As shown in FIG. 1, the flow includes The following steps:
  • Step S102 The terminal acquires a trigger type of the information to be sent, where the trigger type includes: an event triggered broadcast and a periodic broadcast;
  • Step S104 Obtain pre-configuration information of the workshop communication V2V resource pool corresponding to the trigger type.
  • Step S106 Determine a subframe of the information to be sent according to the pre-configuration information, and send the to-be-sent information by using the determined subframe.
  • the pre-configuration information of the V2V resource pool of the inter-vehicle communication corresponding to the trigger type is obtained, and then the subframe for transmitting the information to be sent is determined according to the pre-configuration information corresponding to the trigger type.
  • the subframe sends the information to be sent, and the event triggering broadcast event and the periodic broadcast event determine the subframe for transmitting the information to be sent through the configuration information of different resource pools, thereby solving the problem that the communication mechanism of the workshop communication V2V is easy to generate resources.
  • the preemption leads to the problem of sending collisions, and improves the stability and timeliness of the workshop communication through the workshop communication V2V.
  • the acquiring the pre-configuration information in the V2V resource pool of the plant communication corresponding to the trigger type may include: acquiring the road information of the road where the current vehicle is located where the terminal is located; and if the trigger type is the information of the event-triggered broadcast, The pre-configuration information of the control resource SA1 resource pool in the V2V resource pool corresponding to the road information is obtained. If the trigger type is a periodic broadcast event, the pre-configuration information of the data resource pool in the V2V resource pool corresponding to the road information is obtained.
  • the setting of the configuration information of the resource pool and the method of selecting the resource pool based on the road information can enable the emergency broadcast of the sudden event (that is, the event-triggered broadcast in the above embodiment). Event) sent in time.
  • the resource pre-configuration information may be obtained according to the trigger type of the information to be sent, where the pre-configuration information includes at least V2V resource pool configuration and road-related configuration information, that is, the pre-configuration information may be related to road information.
  • the road information may include: a route traveled by the vehicle, road location information, vehicle intensity, and vehicle moving speed.
  • the subframe number selected for transmission may be determined based on the road information, the pre-configuration information (which may include the inter-listening range), and the previous vehicle subframe position.
  • determining, according to the pre-configuration information, the subframe of the information to be sent may include: if the triggering class The type is a periodic broadcast event, and the inter-listening range to which the current vehicle belongs corresponding to the road position information and the vehicle distance information in the road information is acquired; the lane information in the lane where the current vehicle is located in the road information, and the period information in the pre-configuration information And the subframe number information in the pre-configuration information determines the subframe of the information to be transmitted.
  • the front vehicle is a vehicle that is within the mutual listening range and located before the current vehicle head position.
  • determining, according to the lane information of the lane where the current vehicle is located in the road information, the period information in the pre-configuration information, and the subframe number information in the pre-configuration information, determining the subframe to be sent includes: acquiring the front vehicle of the current vehicle. The broadcast subframe and the position relationship between the current vehicle and the preceding vehicle; if the preceding vehicle has no subframe transmission or the broadcast subframe is located in the first X subframes of the current period in the period information, the subframe number information is used to read from the current period. The subframe number corresponding to the lane information and the positional relationship determines a subframe of the information to be transmitted, where X is a natural number, and the first X subframes are subframes before the designated subframe in the current period.
  • the subframe number information is used to read the vacant frequency band corresponding to the lane information and the position relationship from the next period of the current period.
  • the subframe sequence number is used to determine a subframe of the information to be transmitted, where Y is a natural number, and the last Y subframes are subframes located after the specified subframe in the current period.
  • the interception here means that the vehicles in other locations can be intercepted except the terminal itself, that is, the vehicles in front of and behind the current vehicle can be intercepted, but only the vehicles in the preceding vehicle and the preceding vehicles are based on the positional relationship with the current vehicle.
  • the frame number obtains the transmission subframe of the host terminal.
  • the vehicle traveling on the lane A1 may be a subframe having the sequence numbers: 1, 4, and 7.
  • the information of the periodic broadcast event may include at least one of a speed of the vehicle, a position of the vehicle, an acceleration of the vehicle, and a motion trajectory of the vehicle.
  • determining, according to the pre-configuration information, the subframe to be sent includes: if the trigger type is an event-triggered broadcast, and the terminal broadcasts the event according to the periodicity before acquiring the information to be sent, the terminal is based on the terminal.
  • the subframe number used in a periodic broadcast determines the resource sequence number in the SA1 resource pool, and broadcasts the scheduling information of the to-be-sent information on the resource determined by the resource sequence number.
  • the terminal randomly determines the resource sequence number in the SA1 resource pool, and broadcasts the scheduling information of the to-be-sent information on the resource determined by the resource sequence number. Or scheduling the scheduling information of the to-be-sent information on a specific resource sequence number.
  • the resource sequence number may be: a transmission location sequence number in a frequency domain on a subframe of the SA1 resource period, and the sequence number may be the same as a subframe sequence number used by the terminal in the previous periodic broadcast.
  • the scheduling information that broadcasts the information to be sent on the resource determined by the resource sequence includes: the terminal generates a notification message for notifying the subframe occupied by the terminal, and sends the notification message to other vehicles in the coverage area of the current vehicle. .
  • Vehicles within this coverage can listen to each other.
  • the method further includes: after receiving the notification message by the terminal of the other vehicle, the terminal of the other vehicle follows the subframe indicated by the notification message.
  • the information selects a transmission subframe of a terminal of another vehicle, wherein the transmission subframe of the terminal of the selected other vehicle does not collide with the subframe in which the information to be transmitted is broadcasted.
  • the terminal of the current vehicle determines the frequency domain transmission location number of the terminal on the subframe of the resource period P2 of the SA1 resource pool according to the location of the subframe in which the terminal transmits the subframe in the previous repetition period P1, and is specific according to the sequence number position thereof. Transmitted on the subframe, and P2 ⁇ P1.
  • determining the resource sequence number in the SA1 resource pool according to the subframe sequence number used by the terminal according to the terminal broadcast in the previous period includes: determining a retransmission window parameter in the resource sequence number according to the to-be-sent information; and spacing an SA1 resource pool After the resource period P2, a retransmission subframe for retransmitting the information to be transmitted is determined according to the retransmission window parameter, and the information to be transmitted is retransmitted using the retransmission subframe.
  • the retransmission window parameter N is determined according to the to-be-sent information, and the scheduling information of the information to be sent is re-transmitted on the resource sequence number N of the SA2 resource pool after the N resource periods P2, where N is a natural number.
  • the method when determining the retransmission window parameter according to the sequence number of the resource to be sent information (that is, while determining the retransmission window parameter N according to the information to be sent in the resource sequence number N), the method further includes: according to the sub The maximum time window of the sequence number of the frame; if the determined retransmission window parameter is greater than the value of the maximum time window, the retransmission window parameter is estimated by the positive or negative sequence method, and the retransmission window parameter after the estimation is obtained; After the frame resends the information to be sent, the method further includes: if the preset retransmission event is not released, adjusting the value of the maximum time window, and determining a retransmission window parameter based on the adjusted maximum time window, and using the retransmission window parameter again Retransmission; or randomly select a retransmission window to randomly retransmit the resource on the SA1 resource pool.
  • the user equipment UE1 performs the resource position broadcasted in the previous period in the SA1 resource pool (that is, the subframe number of the previous weekly broadcast).
  • the resource selection transmission first selects the frequency band selection K, and then selects the resource sequence number (1 to M) on the K-band according to the subframe number, and selects the retransmission window parameter according to the determined resource sequence number for transmitting the information to be transmitted, that is, the user equipment UE1 is in a certain Sending control information on the SA1 resource pool, and generating a notification message indicating that it will occupy the subframe and the frequency domain location of the shared data resource pool and the geographical location information of the vehicle, and other user equipment UEs that are not transmitted in the inter-listening range In the SA1 resource pool, it is monitored whether there is notification information transmission.
  • the avoidance is selected. For example, if the scheduling resource of the terminal in the shared data resource pool is preempted by the user who sends the SA1, and the UE1 occupies the V2V subframe 0 in the periodic transmission, the resource is selected to be transmitted in the SA1 resource pool, and the retransmission is selected according to the sequence number of the SA1.
  • the terminal of the current vehicle listens to the vehicle in front of it (ie, the preceding vehicle) at a predefined resource location (ie, a preset listening subframe in the above embodiment).
  • Resource occupancy ie, broadcast sub-frame
  • the terminal of the current vehicle listens to the vehicle in front of it (ie, the preceding vehicle) at a predefined resource location (ie, a preset listening subframe in the above embodiment).
  • Resource occupancy ie, broadcast sub-frame
  • the selected structure is set according to the road information.
  • the subframe 0 in the next cycle is selected to be transmitted, and the vehicle selecting the subframe 0 can select the location of the frequency domain resource according to the interception result, so that the guaranteed The range can be mutually audible.
  • the front and rear left and right sides are not in the same subframe, and the serial number in the box shown in FIG. 6 is the digital resource block number in the V2V resource pool. If each data resource occupies one subframe, it is a subframe number of a V2V resource cycle.
  • the road information includes at least one of the following parameters: the road condition of the road on which the current vehicle is located, the type of the road, and the number of vehicles that can be mutually audible.
  • the road information may include at least one of the following parameters: the road condition of the road where the current vehicle is located, the number of lanes of the road, the type of vehicle within the range of the listening, the type of the road, the intensity of the vehicle on the road, and the road. The speed at which the vehicle moves.
  • pre-configured resources of resource pools of different trigger types may be predefined.
  • the pre-configuration information of the data resource pool of the inter-vehicle communication V2V resource pool includes at least: a repetition period P1, an RB indication parameter for indicating a frequency domain resource, a subframe offset parameter for indicating a subframe offset, and each The subframes within the repetition period indicate parameters.
  • the subframe offset parameter is used to indicate a starting point of the repetition period P1 relative to the D2D frame number/system frame number DFN/SFN#0, or a subframe offset parameter is used to indicate the repetition period P1
  • the starting point is relative to the offset of the PSCCH of 3GPP R12.
  • DFN/SFN is D2D Frame Number/System Frame Number.
  • each repetition period P1 includes N (L*C) subframes, where N is used to indicate the number of subframes occupied by the vehicle once to send event information, and N is an integer greater than or equal to 1, and L is used.
  • N is used to indicate the number of subframes occupied by the vehicle once to send event information
  • N is an integer greater than or equal to 1
  • L is used.
  • L is an integer greater than or equal to 3
  • C is used to indicate the number of vehicles that are laterally inter-listening
  • C is an integer greater than or equal to 3.
  • the data resource pool of the V2V includes a resource period P1 of the V2V (ie, the repetition period P1 described above), and each of the V2V repetition periods P1 includes N (L*C) subframes, where N is each vehicle.
  • the starting point of the period of the resource pool V2V may be an initial offset with respect to DFN/SFN #0, or may be an offset with respect to a PSCCH (Physical Sidelink Control Channel) of R12.
  • PSCCH Physical Sidelink Control Channel
  • the pre-define shop communication V2V resource configuration for different services includes, but is not limited to, a data resource pool in which V2V periodic services are configured, and each repetitive cycle in the data resource pool includes N (L*C) sub-children.
  • the V2V data resource pool can be configured as an independent resource pool Vdata, that is, the resource block RB indication parameter indicates the frequency domain resource, and the time domain resource is indicated by the subframe indication parameter, and the subframe offset can be the Vdata boundary relative to the DFN/SFN#0.
  • the starting offset of the data resource pool, and the repetition period P1 of the data resource pool, and each repetition period P1 includes an auditable data resource number.
  • One is a frequency division D2D resource pool, that is, in a resource period of an SA resource pool, V2V and D2D frequency division SA1 resource pool and data resource pool, that is, offsets from D2D SA, resources of each SA resource pool
  • the configuration information of the control channel SA1 resource pool of the inter-vehicle communication V2V resource pool includes at least: a resource period P2, an RB at least parameter for indicating a frequency domain resource, and a sub-sub-label indicating sub-frame offset
  • the frame indicates the parameter.
  • the subframe indication parameter is used to indicate that the starting point of the resource period P2 of the SA1 resource pool is relative to the starting offset of DEN/SEN#0, or the subframe indication parameter is used to indicate that the starting point of the resource period P2 of SA1 is relative to The offset of the PSCCH at R12.
  • each SA1 resource pool occupies one time domain subframe, and the subframe of the SA1 resource pool is divided into M resource units by frequency domain resources.
  • some of the M resource units are used for control information of the vehicle alarm, and the control information is scheduling information for indicating communication.
  • the SA1 resource period P2 of the control channel SA1 resource pool of the V2V, and only one subframe in the SA1 resource period P2 of each V2V, and the subframe is divided into M resource units by frequency domain resources.
  • the subframe indication parameter is used to indicate that the starting point of the resource period P2 of the SA1 resource pool is relative to the starting offset of the D2D frame number/system frame number DFN/SFN#0, or the subframe indication parameter is used to indicate SA1.
  • the starting point of the resource period P2 is relative to the offset of the PSCCH of the 3GPP R12.
  • the resource configuration of the V2V for different services is defined, including but not limited to the configuration of the control channel SA1 resource pool of the V2V.
  • the period of the SA1 resource pool is pre-configured as P2, and the time domain occupies one subframe.
  • the subframe offset offset therein may be two configurations, one is the starting offset of the boundary of SA1 with respect to DFN/SFN#0, and the other is the offset with respect to the D2D SA.
  • the SA1 resource pool has a higher priority than the SA and data resource pools and other V2V resource pools, that is, the data resource locations advertised by the SA and the SA1. If the SA1 subframe position overlaps with the SA or data resource pool, there is no event-triggered type.
  • the UE of the service (event-triggered broadcast event) will not send SA and data at the position overlapping with the SA1 subframe;
  • a UE with an event-triggered service advertises its data service in SA1.
  • the location where the corresponding data resource pool overlaps with the subframe advertised by SA1 will not send the service.
  • Other users according to the SA1 notification (that is, the above notification message) Listening on the resources.
  • the V2V resource pool is not limited to the control channel resource pool (SA1) and the data resource pool for the emergency emergency service, and the shared resource pool Vdata or the shared resource pool with the D2D, wherein the Vdata resource pool It is used to periodically broadcast the vehicle's motion parameters such as position, speed, acceleration, and motion trajectory.
  • the UE detects the related information in the related resource pool based on the resource configuration module, and the SA1 resource pool UE1 randomly selects the sending resource according to the trigger type and the subframe position broadcasted by the period, if there is no periodic broadcast, The other does not send the UE detection control information and its related resource occupation. If the data resource it sends is occupied by the resources of SA1, its data resources will not be sent.
  • the vehicle is detected in the Vdata resource pool to transmit a periodic broadcast, and the vehicle transmission subframe is configured according to the resource subframe position of the vehicle in front of it.
  • the method and the device (system) according to the present invention are used, and compared with the related art, the V2V resource interception selection and distribution can achieve mutual listening with the surrounding vehicles, and the resource pool is pre-configured through the SA1.
  • the pre-occupancy of the bursty resources is ensured, and the use of less resource overhead causes other services to avoid data resources and reduce data resource conflicts after hearing the resource occupancy notification.
  • Step S202 The user equipment (UE) acquires resource pre-configuration information.
  • the resource pre-configuration information includes at least a data resource pool for V2V communication and a control channel resource pool SA1 for burst emergency services.
  • the SA1 resource pool is used for resource scheduling of sudden events, and the data resource pool of periodic broadcast service resources is used to periodically broadcast the location information, moving speed, acceleration and motion trajectory of the vehicle.
  • the event-triggered resource is a reserved resource.
  • the resource scheduling information resource is reserved and reserved periodically, so that the burst service can be performed in the latest SA1 subframe. The broadcast of its resources.
  • the SA1 resource pool configuration information is required because the V2V service event triggers the service time requirement.
  • the SA1 resource period of the SA1 resource pool generally requires a minimum delay of 20 ms and a maximum delay of 100 ms. Therefore, the SA1 period can be defined as :[10,20,30,40].
  • the resource pool parameter of the SA1 may include: 1) an RB indication parameter for indicating a frequency domain resource; and 2) a subframe indication parameter for indicating a subframe offset offset, where
  • the subframe offset offset can be two configurations, one is the starting offset of the boundary of SA1 with respect to DFN/SFN#0, one is the offset with respect to the D2D SA, and 3) the resource of the SA1 resource pool.
  • the resource period can be configured as [10, 20, 30, 40] ms.
  • the SA1 resource pool can divide the configured frequency resource into M SA1 resources according to the resource period size of the SA1, and each SA1 resource occupies one subframe.
  • a data resource pool of V2V one is configured by independent parameters, that is, by a repetition period, a frequency domain RB parameter, a subframe and a starting offset with respect to DFN/SFN#0, and each period The number of subframes bitmap indicates the parameters.
  • the first few subframes are as shown in Figure 4a, or the same subframe as V2V is transmitted as shown in Figure 4b.
  • V2V and SA frequency-divided frequency-domain resources the position of the control channel is consistent with FIG. 4a, and is in one-to-one correspondence with the data subframe position relationship of the V2V.
  • the L*C subframes configured in the data resource pool may be consecutive subframes or discontinuous subframes, and are indicated by resource pool parameters.
  • Step S204 After the pre-configured resource is learned, the user equipment performs resource preemption and broadcast of the occupied resource in the pre-configured resource pool according to the service level.
  • the resource preemption of the SA1 is the corresponding resource location of the SA1 occupied by the UE according to the trigger type and the subframe position of the periodic broadcast, and the reclaimed window is the preempted resource serial number when the retransmission is performed.
  • the frequency domain resource is M resource units, and the U1 performs preemption according to the trigger type and the location relationship.
  • the UE1 occupies the first subframe when broadcasting in the previous period, and needs to be in the SA1 when its service needs to be in the SA1.
  • the resource pool When the resource pool is sent, it will preempt the resource pool with sequence number 1 in the SA1 resource pool and advertise its data resource occupancy. After receiving the advertisement information, other UEs will terminate their transmission service and broadcast it on SA1.
  • the resource is received, and the retransmission is performed according to the first selected resource sequence number. If the resource with sequence number 1 is selected in the SA1 resource pool, the backoff window is 1, and the backoff window is 1, the interval is one SA1 period. , then send it in the next cycle.
  • M is greater than Num*(L*C)
  • Num is the number of frequencies of the resource pool divided by the frequency of each periodically broadcasted resource.
  • the user sends the last cycle in the frequency band K1, and then the K1 segment on the M. Select the corresponding serial number on it.
  • the M resource may also reserve part of the resource for the control information indication and resource occupation of the emergency vehicle alarm; when it does not have the periodic broadcast service, the resource other than the fixed reserved resource may be randomly selected.
  • the resource occupancy of the user that needs to be sent before the user is selected, and the maximum distance that can be heard on the driving route is determined according to the listening result. It transmits a sub-frame, as shown in Figure 3, the instantaneous positional relationship of the vehicle on the road.
  • Solution 1 The control channel is independent, considering 4*3, that is, 4 lanes, one car can listen to each other before and after, and control channels 0, 13, and 14 are special channels, respectively for 0 for medical emergency vehicles, 13 For fire-fighting vehicles, 14 for police vehicles; first A11, A21, A31, A41 do not hear the resource occupancy from the front and left, then select the control channel 1, 2, 3 according to the positional relationship of the lane, 4 position transmission; the remaining vehicles are selected according to their lanes and relative position with A11, A21, A31, A41 vehicles, such as A12 occupies resources 5, A22 occupies resources 6, A32 occupies resources 7, A42 occupies resources 8, A33 occupies 11, A43 occupies resource 12, and its data resource has two modes.
  • One mode corresponds to the control channel one by one, that is, each control channel corresponds to a corresponding data subframe, that is, the data channel has a certain correspondence with the control channel sequence, such as a data channel.
  • Subframe 0 corresponds to 0
  • subframe 1 corresponds to 1
  • data channel subframe 0 corresponds to control channel 0
  • data channel subframes 2, 3 correspond to control channel 1; one way is to listen from other
  • the resource occupancy of the serial number The unused subframe is selected as the data subframe, and the control channel transmits the vehicle number, position and the like of the vehicle, and the frequency domain resource location is as shown in FIG. 4a.
  • Solution 2 The control channel and the data sub-frame are transmitted in the same subframe, and the data resource serial number is the same as the control resource serial number: first, A11, A21, and A31 do not hear the resource occupation from the front, and then select a spare frequency according to the positional relationship of the lane.
  • the subsequent subframe 5 transmits the frequency domain resources and is the same as the frequency domain resources of A11, A21, and A31.
  • the second period is shown in Figure b31.
  • the vehicle After the vehicle is added to the queue, since it is located in the A3 lane, its available subframes are 2, 6, and 10,
  • the b31 vehicle is located in the A3 lane, and the second sub-frame of the other frequency band K2 is selected for transmission, and the a33 vehicle is selected to move and is located in the lane A2, listening to the front A22.
  • A32 is located in subframe 5, 6 of this frame, and the subframe according to A2 lane should be 1, 5, 9, and then subframe 9 is selected for transmission, as shown in FIG. 4b.
  • the two-way four-lane according to the vehicle around a vehicle can listen to each other, as shown in FIG. 6, there is no isolation structure between the forward reverse lanes for the urban traffic section, and therefore the inter-listening structure includes the reverse direction.
  • the vehicle in the lane adopts a 3*3 structure, and has a fixed subframe number in each lane.
  • the vehicle subframe number of the a1 lane of the forward lane is always 1, 4, 7, and the number of the vehicle subframe of the a2 lane is always
  • the sub-frame number of the 2,5,8, and a3 lanes is always 3,6,9, and the number of sub-frames of the a4 lane is always 1,4,7, and the reverse lane b4 needs to be heard with the a1 lane.
  • the vehicle subframe number of the b4 lane is 3, 6, 9, and the vehicle subframe number of the b3 lane is 2, 5, 8, and the vehicle subframe number of the b2 lane is 1, 4, 7, and the vehicle subframe number of the b1 lane is 3,6,9, "/" is the serial number after the movement, so the vehicles b4 and a1 in the reverse lane can ensure mutual listening, and the vehicles around each lane can listen to each other.
  • the sub-frame transformation will be performed according to the lane of the vehicle, and the specific subframe number is determined by the preceding vehicle and the left vehicle of the in-phase lane.
  • the vehicle in the a3 lane is in subframe 6 in this cycle, it will change lane a2 in the next cycle.
  • the second cycle by monitoring the vehicle in front of it, it is located in subframe 1, 2, then its lane change is a2, and it will be located in subframe.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve. Thus, the invention is not limited to any specific combination of hardware and software.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, CD-ROM, including a number of instructions to make a terminal device (can be a mobile phone, a computer, The server, or network device, etc.) performs the methods described in various embodiments of the present invention.
  • a transmission device for a communication system of a road vehicle is further provided, and the device is used to implement the above-mentioned embodiments and preferred embodiments, and the detailed description thereof has been omitted.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • the transmission device of the communication system may include the first acquisition unit 10, the second acquisition unit 20, and the processing unit 30 as shown in FIG.
  • the first obtaining unit 10 is configured to acquire a trigger type of the information to be sent, where the trigger type includes: an event-triggered broadcast and a periodic broadcast; and the second obtaining unit 20 is configured to acquire a workshop communication V2V corresponding to the trigger type.
  • Pre-configuration information of the resource pool; the processing unit 30 is configured to determine a subframe of the information to be transmitted according to the pre-configuration information, and send the to-be-sent information using the determined subframe.
  • the pre-configuration information of the inter-vehicle communication V2V resource pool corresponding to the trigger type is obtained, and then the information to be sent is determined according to the pre-configuration information corresponding to the trigger type.
  • the sub-frame transmits the information to be sent through the sub-frame.
  • the event-triggered broadcast event and the periodic broadcast event determine the subframe in which the information to be sent is sent through the configuration information of different resource pools, and the workshop communication V2V is solved.
  • the communication mechanism is prone to the problem of resource collision leading to the transmission collision, and improves the stability and timeliness of the workshop communication through the workshop communication V2V.
  • the second obtaining unit 20 may include: a first acquiring module, configured to acquire road information of a road where the current vehicle is located where the terminal is located; and a second acquiring module configured to: if the trigger type is an event triggering type Obtaining the pre-configuration information of the control channel SA1 resource pool in the V2V resource pool corresponding to the road information; the third obtaining module is configured to acquire the V2V resource pool corresponding to the road information if the trigger type is a periodic broadcast event Pre-configuration information for the data resource pool.
  • the setting of the configuration information of the resource pool and the method of selecting the resource pool based on the road information can enable the emergency broadcast of the sudden event (that is, the event-triggered broadcast in the above embodiment). Event) sent in time.
  • the resource pre-configuration information may be acquired based on the trigger type of the information to be sent, where the pre-configuration information includes at least V2V resource pool configuration and road-related configuration information, that is, the pre-configuration information may be related to road information.
  • the road information may include: a route traveled by the vehicle, road location information, and. And the maximum number of vehicles that can be heard.
  • the subframe number selected for transmission may be determined based on the road information, the pre-configuration information (which may include the inter-listening range), and the previous vehicle subframe position.
  • the processing unit 30 includes: a range obtaining module, configured to acquire, if the trigger type is a periodic broadcast event, acquire the mutual current of the current vehicle corresponding to the road location information and the vehicle spacing information in the road information. Listening range; a first subframe determining module, configured to be based on lane information of the current vehicle lane in the road information, and a pre-configured letter The period information in the information and the subframe number information in the pre-configuration information determine the subframe of the information to be transmitted, wherein the preceding vehicle is a vehicle that is within the mutual listening range and located before the current vehicle head position.
  • the first subframe determining module includes: a relationship acquiring submodule, configured to acquire a broadcast subframe used by the preceding vehicle of the current vehicle, and a position relationship between the current vehicle and the preceding vehicle; the first subframe determining submodule, setting If the preceding vehicle has no subframes to transmit or broadcast the subframes in the first X subframes of the current period in the period information, the subframe sequence number information is used to read the subframe number corresponding to the lane information and the position relationship from the current period to determine a subframe to be transmitted, where X is a natural number, and the first X subframes are subframes located before the designated subframe in the current period; the second subframe determination submodule is set to be if the preceding vehicle has no subframe transmission or broadcast subframe The frame is located in the last Y subframes of the current period in the period information, and the subframe number of the spare frequency band corresponding to the lane information and the position relationship is read from the next period of the current period by using the sub
  • the vehicle traveling on lane A1 may be a subframe having the sequence numbers: 1, 4, and 7.
  • the processing unit 30 may include: a second subframe determining module, configured to: if the trigger type is an event-triggered broadcast, and the terminal broadcasts the event according to the periodicity before acquiring the information to be sent, the terminal according to the terminal The subframe number used in the previous periodic broadcast determines the resource sequence number in the SA1 resource pool, and broadcasts the scheduling information of the to-be-sent information on the resource determined by the resource sequence number; the third subframe determination module is set to if the trigger type is an event The triggering type broadcasts, and the terminal does not broadcast the event according to the periodicity before acquiring the information to be sent, the terminal randomly determines the resource serial number in the SA1 resource pool, and broadcasts the scheduling information of the to-be-sent information on the resource determined by the resource serial number, or in a specific The scheduling information of the information to be sent is broadcasted on the resource serial number.
  • a second subframe determining module configured to: if the trigger type is an event-triggered broadcast, and the terminal broadcasts the event according to the periodicity before
  • the pre-configuration information of the data resource pool of the inter-vehicle communication V2V resource pool includes at least: a repetition period P1, an RB indication parameter for indicating a frequency domain resource, a subframe offset parameter for indicating a subframe offset, and each The subframes within the repetition period indicate parameters.
  • the subframe offset parameter is used to indicate the starting point of the repetition period P1 relative to the D2D frame number/system frame number DEN/SEN#0, or the subframe offset parameter is used to indicate the repetition period P1
  • the starting point is relative to the offset of the PSCCH of 3GPPR12.
  • each repetition period P1 includes N (L*C) subframes, where N is used to indicate the number of subframes occupied by the vehicle once to send event information, and N is an integer greater than or equal to 1, and L is used.
  • N is used to indicate the number of subframes occupied by the vehicle once to send event information
  • N is an integer greater than or equal to 1
  • L is used.
  • L is an integer greater than or equal to 3
  • C is used to indicate the number of vehicles that are laterally inter-listening
  • C is an integer greater than or equal to 3.
  • the configuration information of the control channel SA1 resource pool of the inter-vehicle communication V2V resource pool includes at least: a resource period P2, an RB at least parameter for indicating a frequency domain resource, and a sub-subscript for indicating a subframe offset.
  • the frame indicates the parameter.
  • the subframe indication parameter is used to indicate the starting point of the resource period P2 of the SA1 resource pool relative to the number of D2D frames/system The start offset of the frame number DEN/SEN#0, or the subframe indication parameter is used to indicate the offset of the start of the resource period 3GPP P2 of SA1 with respect to the PSCCH of R12.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the terminal acquires a trigger type of the to-be-sent information, where the trigger type includes: an event-triggered broadcast and a periodic broadcast.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the trigger type is the periodic broadcast event, obtain pre-configuration information of the data resource pool in the V2V resource pool corresponding to the road information.
  • the method and the device (system) of the present invention are used to ensure the mutual listening with the surrounding vehicles through the V2V resource interception selection and allocation, and the resource pool is pre-configured through the SA1.
  • the preemptiveness of bursty resources causes other services to avoid data resources and reduce data resource conflicts after hearing their resource occupancy notifications.
  • the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • a mobile hard disk e.g., a hard disk
  • magnetic memory e.g., a hard disk
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. Perform the steps shown or described, or separate them into individual integrated circuit modules, or make multiple modules or steps into a single The integrated circuit module is implemented. Thus, the invention is not limited to any specific combination of hardware and software.
  • the communication system and method for transmitting a road vehicle provided by the embodiment of the present invention have the following beneficial effects: the event-triggered broadcast event and the periodic broadcast event are determined to be sent and sent through configuration information of different resource pools.
  • the sub-frame of information solves the problem that the communication mechanism of the workshop communication V2V is prone to resource collision and causes the collision, and improves the stability and timeliness of the workshop communication through the workshop communication V2V.

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Abstract

本发明提供了一种用于道路车辆的通讯系统传输方法及装置。其中，该方法包括：终端获取待发送信息的触发类型，其中，上述触发类型包括：事件触发型播报和周期型播报；获取与上述触发类型对应的车间通信V2V资源池的预配置信息；根据上述预配置信息确定上述待发送信息的子帧，并使用确定的上述子帧发送上述待发送信息。通过本申请，解决了车间通信V2V的通信机制容易发生资源抢占导致发送碰撞的问题，提高了通过车间通信V2V进行车间通信的稳定性和及时性。

Description

用于道路车辆的通讯系统的传输方法及装置 技术领域
本发明涉及通信领域，具体而言，涉及一种用于道路车辆的通讯系统的传输方法及装置。
背景技术
车间通信V2V可以理解为车辆之间的D2D通讯，其中，D2D通讯为设备与设备之间的通讯方式，车间通信V2V与设备间通信D2D不同之处在于移动速度提高，用户密集程度增加，可靠性要求高等特点，而常规D2D通信可能不必考虑如此苛刻的时延需求，因此对于D2D通信时延的优化是支持V2V所必要的改进方面，现有的R12的D2D要支持V2V设计会依已有的D2D标准进行增强。
相关技术中的D2D通信的版本R12以广播通讯和D2D发现两块基本内容，其中，D2D发现discovery用于发现(并识别)邻近的D2D终端；广播通讯communication用于之间的直接通信。对于discovery和communication来说，均支持基于用户设备UE自主和基于调度两种实现方式。基于调度的D2D由于需要和基站建立链接，由此带来的时延是V2V无法忍受的。
另外，对于相关技术中的R12按预配置资源池采用自由竞争方式进行资源选择，同时D2D采用上行资源由于设备的限制，存在半双工问题即发送时不能接收，而对于V2V设备要周期性广播其位置，速度等信息，必须保证其一定范围的车辆可以互听，因此D2D中自由竞争和双工引起的碰撞和不听互听问题在V2V中影响更加严重，严重影响车辆的可靠性。
具体地，上述LTE Rel-12 D2D communication mode 2的物理层通信过程如下：基站通过SIB分配用于D2D通信控制信道(SA(Scheduling Assignment)/PSCCH(Physical Sidelink Control Channel))和数据信道(data，PSSCH(Physical Sidelink Shared Channel))传输的资源池；有D2D数据业务的UE在控制信道和数据信道资源中分别发送D2D控制信令和D2D数据，其中控制信令用于指示D2D数据信道的资源调度信息，控制信令和数据的传输资源均由发送UE在控制资源池和数据资源池中随机选择。如果仍采用R12的随机选择机制将会导致碰撞，发送时不能接收，对于互相接近的车辆如其同时广播信息，由于发送时不能接收，则会影响信息接收，对于突发性事故的紧急播报，由于资源抢占发送碰撞不能正确接收则会引起严重的事故。
针对相关技术中车间通信V2V的通信机制容易发生资源抢占导致发送碰撞的问题。
发明内容
本发明提供了一种用于道路车辆的通讯系统的传输方法及装置，以至少解决相关技术中的问题。
根据本发明的一个方面，提供了一种用于道路车辆的通讯系统的传输方法，该传输方法包括：终端获取待发送信息的触发类型，其中，上述触发类型包括：事件触发型播报和周期型播报；获取与上述触发类型对应的车间通信V2V资源池的预配置信息；根据上述预配置信息确定上述待发送信息的子帧，并使用确定的上述子帧发送上述待发送信息。
可选地，获取与上述触发类型对应的车间通信V2V资源池中的预配置信息包括：获取上述终端所在的当前车辆所在道路的道路信息；若上述触发类型为上述事件触发型播报事件，则获取与上述道路信息对应的上述V2V资源池中控制信道SA1资源池的预配置信息；若上述触发类型为上述周期型播报事件，则获取与上述道路信息对应的上述V2V资源池中数据资源池的预配置信息。
可选地，根据上述预配置信息确定上述待发送信息的子帧包括：若上述触发类型为上述周期型播报事件，则获取与上述道路信息中的道路位置信息和车辆间距信息对应的上述当前车辆所属的互听范围；基于上述道路信息中当前车辆所在车道的车道信息、上述预配置信息中的周期信息和上述预配置信息中的子帧序号信息确定上述待发送信息的子帧，其中，上述前车为在上述互听范围内且位于上述当前车辆车头位置之前的车辆。
可选地，基于上述道路信息中当前车辆所在车道的车道信息、上述预配置信息中的周期信息和上述预配置信息中的子帧序号信息确定上述待发送信息的子帧包括：获取上述当前车辆的前车所使用的播报子帧和上述当前车辆与上述前车的位置关系；若上述前车没有子帧发送或上述播报子帧位于上述周期信息中当前周期的前X个子帧，则利用上述子帧序号信息从上述当前周期中读取与上述车道信息和上述位置关系对应的子帧序号，以确定上述待发送信息的子帧，其中，X为自然数，上述前X个子帧为上述当前周期中位于指定子帧之前的子帧；若上述前车没有子帧发送或上述播报子帧位于上述周期信息中当前周期的后Y个子帧，则利用上述子帧序号信息从上述当前周期的下一周期中读取与上述车道信息和上述位置关系对应的空余频段的子帧序号，以确定上述待发送信息的子帧，其中，Y为自然数，上述后Y个子帧为上述当前周期中位于上述指定子帧之后的子帧。
可选地，上述周期型播报的信息中包括：车辆的速度、车辆的位置、车辆的加速度以及车辆的运动轨迹中的至少之一。
可选地，根据上述预配置信息确定上述待发送信息的子帧包括：若上述触发类型为上述事件触发型播报，且上述终端在获取上述待发送信息之前按照周期播报事件，则上述终端根据上述终端在上一个周期播报时使用的子帧序号在上述SA1资源池中确定资源序号，并在上述资源序号确定的资源上播报上述待发送信息的调度信息；若上述触发类型为上述事件触发型播报，且上述终端在获取上述待发送信息之前未按照周期播报事件，则上述终端在上述SA1资源池中随机确定上述资源序号，并在上述资源序号确定的资源上播报上述待发送信息的调度信息，或在特定的资源序号上播报所述待发送信息的调度信息。
可选地，在上述子帧序号确定的资源上播报上述待发送信息的调度信息包括：上述终端生成用于通知上述终端所占用上述子帧的通知消息，并将上述通知消息发送至上述当前车辆 所属覆盖范围内的其他车辆。
可选地，在将上述通知消息发送至上述当前车辆所属覆盖范围内的其他车辆之后，上述方法还包括：在上述其他车辆的终端接收到上述通知消息之后，上述其他车辆的终端按照上述通知消息所指示的上述子帧的信息选择上述其他车辆的终端的发送子帧，其中，选择的上述其他车辆的终端的发送子帧与播报上述待发送信息的上述子帧不冲突。
可选地，在上述终端根据上述终端在上一个周期播报时使用的子帧序号在上述SA1资源池中确定资源序号之后，上述方法还包括：根据待发送信息在资源序号N确定重发窗参数N；在间隔N个资源周期P2后的SA2资源池的资源序号N上重新发送待发送信息的调度信息，其中，N为自然数。
可选地，在根据待发送信息在资源序号N确定重发窗参数N的同时，上述方法还包括：根据上述待发送信息的子帧的序号的最大时间窗；若确定的上述重发窗参数大于上述最大时间窗的值，则采用正序或反序方式推算重发窗参数，得到推算后的重发窗参数；在使用重发子帧重发上述待发送信息之后，上述方法还包括：若预设重发事件未解除，则调整最大时间窗的值，再次重发或随机选择重发窗，并在上述SA1资源池上随机选择的重发资源。
可选地，上述道路信息包括下述参数中的至少之一：上述当前车辆所在道路的路况、上述道路的类型以及可互听的车辆数。
可选地，上述车间通信V2V资源池的数据资源池的预配置信息至少包括：重复周期P1、用于指示上述频域资源的RB指示参数、用于指示子帧偏置的子帧偏置参数以及每个重复周期内的子帧指示参数。
可选地，上述子帧偏置参数用于指示上述重复周期P1的起点相对于D2D帧数/系统帧数DFN/SFN#0的起始偏移量、或上述子帧偏置参数用于指示上述重复周期P1的起点相对于3GPP R12的PSCCH的偏移量。
可选地，每个上述重复周期P1内包含N个(L*C)子帧，其中，N用于表示车辆一次发送事件信息所占用的子帧数，N为大于或等于1的整数，L用于表示纵向互听的车辆数，L为大于或等于3的整数，C用于表示横向互听的车辆数，C为大于或等于3的整数。
可选地，上述车间通信V2V资源池的控制信道SA1资源池的配置信息至少包括：资源周期P2、用于指示频域资源的RB至少参数以及用于指示子帧偏置的子帧指示参数。
可选地，上述子帧指示参数用于指示上述SA1资源池的资源周期P2的起点相对于D2D帧数/系统帧数DFN/SFN#0的起始偏移量、或上述子帧指示参数用于指示上述SA1的资源周期P2的起点相对于3GPP R12的PSCCH的偏移量。
可选地，每个上述SA1资源池占用一个时域子帧，上述SA1资源池的子帧按频域资源划分为M个资源单元。
可选地，上述M个资源单元中有部分资源单元用于车辆告警的控制信息，上述控制信息 为用于指示其通讯的调度信息。
根据本发明的另一方面提供了一种用于道路车辆的通讯系统的传输装置，该传输装置包括：第一获取单元，设置为获取待发送信息的触发类型，其中，上述触发类型包括：事件触发型播报和周期型播报；第二获取单元，设置为获取与上述触发类型对应的车间通信V2V资源池的预配置信息；处理单元，设置为根据上述预配置信息确定上述待发送信息的子帧，并使用确定的上述子帧发送上述待发送信息。
可选地，上述第二获取单元包括：第一获取模块，设置为获取上述终端所在的当前车辆所在道路的道路信息；第二获取模块，设置为若上述触发类型为上述事件触发型播报事件，则获取与上述道路信息对应的上述V2V资源池中控制信道SA1资源池的预配置信息；第三获取模块，设置为若上述触发类型为上述周期型播报事件，则获取与上述道路信息对应的上述V2V资源池中数据资源池的预配置信息。
可选地，上述处理单元包括：范围获取模块，设置为若上述触发类型为上述周期型播报事件，则获取与上述道路信息中的道路位置信息和车辆间距信息对应的上述当前车辆所属的互听范围；第一子帧确定模块，设置为基于上述道路信息中当前车辆所在车道的车道信息、上述预配置信息中的周期信息和上述预配置信息中的子帧序号信息确定上述待发送信息的子帧，其中，上述前车为在上述互听范围内且位于上述当前车辆车头位置之前的车辆。
可选地，上述第一子帧确定模块包括：关系获取子模块，设置为获取上述当前车辆的前车所使用的播报子帧和上述当前车辆与上述前车的位置关系；第一子帧确定子模块，设置为若上述前车没有子帧发送或上述播报子帧位于上述周期信息中当前周期的前X个子帧，则利用上述子帧序号信息从上述当前周期中读取与上述车道信息和上述位置关系对应的子帧序号，以确定上述待发送信息的子帧，其中，X为自然数，上述前X个子帧为上述当前周期中位于指定子帧之前的子帧；第二子帧确定子模块，设置为若上述前车没有子帧发送或上述播报子帧位于上述周期信息中当前周期的后Y个子帧，则利用上述子帧序号信息从上述当前周期的下一周期中读取与上述车道信息和上述位置关系对应的空余频段的子帧序号，以确定上述待发送信息的子帧，其中，Y为自然数，上述后Y个子帧为上述当前周期中位于上述指定子帧之后的子帧。
可选地，上述处理单元包括：第二子帧确定模块，设置为若上述触发类型为上述事件触发型播报，且上述终端在获取上述待发送信息之前按照周期播报事件，则上述终端根据上述终端在上一个周期播报时使用的子帧序号在上述SA1资源池中确定资源序号，并在上述资源序号确定的资源上播报上述待发送信息的调度信息；第三子帧确定模块，设置为若上述触发类型为上述事件触发型播报，且上述终端在获取上述待发送信息之前未按照周期播报事件，则上述终端在上述SA1资源池中随机确定上述资源序号，并在上述资源序号确定的资源上播报上述待发送信息的调度信息，或在特定的资源序号上播报待发送信息的调度信息。
可选地，上述车间通信V2V资源池的数据资源池的预配置信息至少包括：重复周期P1、用于指示上述频域资源的RB指示参数、用于指示子帧偏置的子帧偏置参数以及每个重复周期 内的子帧指示参数。
可选地，上述子帧偏置参数用于指示上述重复周期P1的起点相对于D2D帧数/系统帧数DEN/SEN#0的起始偏移量、或上述子帧偏置参数用于指示上述重复周期P1的起点相对于3GPPR12的PSCCH的偏移量。
可选地，每个上述重复周期P1内包含N个(L*C)子帧，其中，N用于表示车辆一次发送事件信息所占用的子帧数，N为大于或等于1的整数，L用于表示纵向互听的车辆数，L为大于或等于3的整数，C用于表示横向互听的车辆数，C为大于或等于3的整数。
可选地，上述车间通信V2V资源池的控制信道SA1资源池的配置信息至少包括：资源周期P2、用于指示频域资源的RB至少参数以及用于指示子帧偏置的子帧指示参数。
可选地，上述子帧指示参数用于指示上述SA1资源池的资源周期P2的起点相对于D2D帧数/系统帧数DEN/SEN#0的起始偏移量、或上述子帧指示参数用于指示上述SA1的资源周期3GPP P2的起点相对于R12的PSCCH的偏移量。
本发明另一实施例提供了一种计算机存储介质，所述计算机存储介质存储有执行指令，所述执行指令用于执行上述实施例中的方法。
通过上述步骤，在确定待发送信息的触发类型之后，获取与该触发类型对应的车间通信V2V资源池的预配置信息，然后根据触发类型对应的预配置信息确定发送待发送信息的子帧，通过该子帧发送待发送信息，通过本申请，将事件触发型播报事件和周期型播报事件通过不同资源池的配置信息确定发送待发送信息的子帧，解决了车间通信V2V的通信机制容易发生资源抢占导致发送碰撞的问题，提高了通过车间通信V2V进行车间通信的稳定性和及时性。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据本发明实施例的用于道路车辆的通讯系统的传输方法的流程图；
图2是根据本发明实施例一种可选的用于道路车辆的通讯系统的传输方法的流程图；
图3是根据本发明实施例的一种可选的道路中车辆移动的相对位置的关系示意图；
图4a是根据本发明实施例的一种控制信道资源池与数据资源池在不同子帧的示意图；
图4b是根据本发明实施例的控制信道资源池与数据资源池在相同子帧的示意图；
图5是根据本发明可选实施例的控制信道SA1资源池的随机选择子帧的事宜图；
图6是根据本发明可选实施例的最不互听示的范围的结构示意图；
图7是根据本发明可选实施例的用于道路车辆的通讯系统的传输装置的示意图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
在本实施例中提供了一种用于道路车辆的事件传输方法，图1是根据本发明实施例的用于道路车辆的通讯系统的传输方法的流程图，如图1所示，该流程包括如下步骤：
步骤S102，终端获取待发送信息的触发类型，其中，触发类型包括：事件触发型播报和周期型播报；
步骤S104，获取与触发类型对应的车间通信V2V资源池的预配置信息；
步骤S106，根据预配置信息确定待发送信息的子帧，并使用确定的子帧发送待发送信息。
通过上述步骤，在确定待发送信息的触发类型之后，获取与该触发类型对应的车间通信V2V资源池的预配置信息，然后根据触发类型对应的预配置信息确定发送待发送信息的子帧，通过该子帧发送待发送信息，通过本申请，将事件触发型播报事件和周期型播报事件通过不同资源池的配置信息确定发送待发送信息的子帧，解决了车间通信V2V的通信机制容易发生资源抢占导致发送碰撞的问题，提高了通过车间通信V2V进行车间通信的稳定性和及时性。
根据本发明的上述实施例，获取与触发类型对应的车间通信V2V资源池中的预配置信息可以包括：获取终端所在的当前车辆所在道路的道路信息；若触发类型为事件触发型播报的信息，则获取与道路信息对应的V2V资源池中控制信道SA1资源池的预配置信息；若触发类型为周期型播报事件，则获取与道路信息对应的V2V资源池中数据资源池的预配置信息。
通过上述实施例，基于R12的基本构架，采用资源池的配置信息的设置和基于道路信息的资源池选择的方法，可以使得突发性事件的紧急播报(即上述实施例中的事件触发型播报事件)及时发送。
可选地，可以先基于待发送信息的触发类型获取资源预配置信息，所述预配置信息至少包括V2V资源池配置与道路相关的配置信息，即该预配置信息可以与道路信息相关。
其中，道路信息可以包括：车辆行进的路线、道路位置信息、车辆密集程度、车辆移动速度。
可以基于上述的道路信息、预配置信息(可以包括互听范围)以及前面车辆子帧位置确定选择发送的子帧序号。
在本发明的上述实施例中，根据预配置信息确定待发送信息的子帧可以包括：若触发类 型为周期型播报事件，则获取与道路信息中的道路位置信息和车辆间距信息对应的当前车辆所属的互听范围；基于道路信息中当前车辆所在车道的车道信息、预配置信息中的周期信息和预配置信息中的子帧序号信息确定待发送信息的子帧。
其中，前车为在互听范围内且位于当前车辆车头位置之前的车辆。
可选地，基于道路信息中当前车辆所在车道的车道信息、预配置信息中的周期信息和预配置信息中的子帧序号信息确定待发送信息的子帧包括：获取当前车辆的前车所使用的播报子帧和当前车辆与前车的位置关系；若前车没有子帧发送或播报子帧位于周期信息中当前周期的前X个子帧，则利用子帧序号信息从当前周期中读取与车道信息和位置关系对应的子帧序号，以确定待发送信息的子帧，其中，X为自然数，前X个子帧为当前周期中位于指定子帧之前的子帧。
若前车没有子帧发送或播报子帧位于周期信息中当前周期的后Y个子帧，则利用子帧序号信息从当前周期的下一周期中读取与车道信息和位置关系对应的空余频段的子帧序号，以确定待发送信息的子帧，其中，Y为自然数，后Y个子帧为当前周期中位于指定子帧之后的子帧。
这里的侦听是指除了终端自己发送，其它位置的车辆都可侦听，即当前车辆的其前后车辆都可以侦听，但仅依据与当前车辆的位置关系为前车的车辆及前车的帧号获得本车终端的发送子帧。
可选地，在当前车辆所属的互听范围内，若在当前车辆的前面、左面没有(播报)子帧发送或侦听到的是V2V周期的最后几个子帧位置(即上述的后Y个子帧)，则选择当前周期的下一周期中的某个空余频段的子帧序号发送，且发送子帧的位置与车道相关。如对于车道A1上行驶的车辆可以为序号为：1、4、7的子帧。
根据本发明的上述实施例，周期型播报事件的信息中可以包括：车辆的速度、车辆的位置、车辆的加速度以及车辆的运动轨迹中的至少之一。
在本发明的上述实施例中，根据预配置信息确定待发送信息的子帧包括：若触发类型为事件触发型播报，且终端在获取待发送信息之前按照周期播报事件，则终端根据终端在上一个周期播报时使用的子帧序号在SA1资源池中确定资源序号，并在资源序号确定的资源上播报待发送信息的调度信息。若触发类型为事件触发型播报，且终端在获取待发送信息之前未按照周期播报事件，则终端在SA1资源池中随机确定资源序号，并在资源序号确定的资源上播报待发送信息的调度信息，或在特定的资源序号上播报所述待发送信息的调度信息。
上述的资源序号可以为：在SA1资源周期的子帧上的频域的发送位置序号，该序号可以与终端在上一个周期播报时使用的子帧序号相同。
可选地，在在资源序号确定的资源上播报待发送信息的调度信息包括：终端生成用于通知终端所占用子帧的通知消息，并将通知消息发送至当前车辆所属覆盖范围内的其他车辆。
在该覆盖范围内的车辆可以相互侦听信息。
可选地，在将通知消息发送至当前车辆所属互听范围内的其他车辆之后，方法还包括：在其他车辆的终端接收到通知消息之后，其他车辆的终端按照通知消息所指示的子帧的信息选择其他车辆的终端的发送子帧，其中，选择的其他车辆的终端的发送子帧与播报待发送信息的子帧不冲突。
当前车辆的终端根据该终端在上一个重复周期P1发送子帧的位置确定该终端在SA1资源池的资源周期P2的子帧上的频域发送位置序号，并按照其序号位置在其后的特定子帧上发送，且P2<P1。
可选地，在终端根据终端在上一个周期播报时使用的子帧序号在SA1资源池中确定资源序号包括：根据待发送信息在所述资源序号确定重发窗参数；在间隔一个SA1资源池的资源周期P2之后，按照重发窗参数确定用于重发待发送信息的重发子帧，并使用重发子帧重发待发送信息。
可选地，根据待发送信息在资源序号N确定重发窗参数N；在间隔N个资源周期P2后的SA2资源池的资源序号N上重新发送待发送信息的调度信息，其中，N为自然数。
可选地，在根据待发送信息的资源的序号确定重发窗参数的同时(即在根据待发送信息在资源序号N确定重发窗参数N的同时)，还包括：根据待发送信息的子帧的序号的最大时间窗；若确定的重发窗参数大于最大时间窗的值，则采用正序或反序方式推算重发窗参数，得到推算后的重发窗参数；在使用重发子帧重发待发送信息之后，还包括：若预设重发事件未解除，则调整最大时间窗的值，并基于调整后的最大时间窗确定重发窗参数，并使用该重发窗参数再次重发；或随机选择重发窗，以在所述SA1资源池上随机选择的重发资源。
可选地，对于V2V的事件触发型播报事件，用户设备UE1(如上述的终端)在SA1资源池中根据其上一个周期播报的资源位置(即上述的上一个周播报的子帧序号)进行资源选择发送首先选择频段选择K，然后根据子帧序号在K频段上选择资源序号(1～M)，并根据确定的发送待发送信息的资源序号选择重发窗参数，即用户设备UE1在某个SA1资源池上发送控制信息，并生成指示其将占用后面的共享数据资源池的子帧及频域位置、车辆的地理位置信息的通知消息，在该互听范围内其它不发送的用户设备UE在SA1资源池中监控是否有通知信息发送，若在SA1的某个子帧内有通知消息发送，并根据其指示的即将发送数据业务(即上述的待发送信息)的子帧选择避让。如，终端在共享数据资源池的调度资源将由发送SA1的用户抢占，UE1在周期发送时占用V2V子帧0，则在SA1资源池选择0号资源发送，重发根据其在SA1的序号选择退避窗(即上述的重发窗)，如在SA1选择资源0，则时间窗w＝0，则在其后的SA1资源上继续选择SA1资源0发送；如在SA1选择资源1则重发时间窗w＝1，则间隔一个SA1在下一个SA1资源位置1选择发送，重复后如时间未解除将继续随机选择时间窗随机选择资源发送，如图5所示，并设定最大时间窗Wmax，当用户选择的退避窗大于Wmax时采用反序或正序推算退避窗，如Wmax是8，当用户9占用SA1资源9，且退避窗大于8则选择，正序选择9-8＝1，选择退避窗为1，反序则选择8-(9-8)＝7，退避窗为7。
可选地，对于V2V的事件触发型播报事件，当前车辆的终端在预定义的资源位置(即上述实施例中的预设的侦听子帧)侦听来自其前面车辆(即前车)的资源占用情况(即播报子帧)，根据与前面车辆的位置关系和道路情况，如基于车道数量、车型、道路是否高速、车辆密集程度以及车辆移动速度等来决定当前车辆与前车的位置关系，如图3所示，其重复周期为与其周围车辆最大不可互听数目，如4车道的3*3结构(即L＝3，C＝3)、3*4结构(即L＝3，C＝4)、4*4结构(即L＝4，C＝4)、5*4结构(即L＝5，C＝4)及6*4结构(即L＝6，C＝4)，该所选结构依道路信息进行设置。
可选地，若侦听到来自前方一定范围的车辆，则选择在下一周期的子帧0发送，选取子帧0的车辆可以根据侦听结果选择频域资源的位置，这样，即保证在一定范围内可以互听，如图6所示，在3*3的结构中保证其前后左右不在同一子帧，图6所示的方框内的序号为其在V2V资源池的数字资源块序号，如每个数据资源占一个子帧，则是一个V2V资源周期的子帧号。
上述道路信息包括下述参数中的至少之一：上述当前车辆所在道路的路况、上述道路的类型以及可互听的车辆数。
可选地，道路信息可能包括下述参数中的至少之一：当前车辆所在道路的路况、道路的车道数量、互听范围内车辆的车型、道路的类型、道路上车辆的密集程度以及道路上车辆的移动速度。
根据本发明的上述实施例，可以预定义不同触发类型的资源池的预配置资源。
可选地，车间通信V2V资源池的数据资源池的预配置信息至少包括：重复周期P1、用于指示频域资源的RB指示参数、用于指示子帧偏置的子帧偏置参数以及每个重复周期内的子帧指示参数。
可选地，子帧偏置参数用于指示重复周期P1的起点相对于D2D帧数/系统帧数DFN/SFN#0的起始偏移量、或子帧偏置参数用于指示重复周期P1的起点相对于3GPP R12的PSCCH的偏移量。其中，DFN/SFN即D2D Frame Number/System Frame Number。
可选地，每个重复周期P1内包含N个(L*C)子帧，其中，N用于表示车辆一次发送事件信息所占用的子帧数，N为大于或等于1的整数，L用于表示纵向互听的车辆数，L为大于或等于3的整数，C用于表示横向互听的车辆数，C为大于或等于3的整数。
可选地，V2V的数据资源池包括V2V的资源周期P1(即上述的重复周期P1)，且每个V2V的重复周期P1内包含N个(L*C)子帧，其中N为每个车辆发送的子帧数目，N>＝1，L为纵向可互听的车辆数>＝3，C为横向可互听的车辆数>＝3，车辆根据其前面的车辆发送的子帧位置，和车道决定车辆的发送子帧。
可选地，资源池V2V的周期起点可以是相对于对于DFN/SFN#0的起始偏移量，也可以是相对于R12的PSCCH(Physical Sidelink Control Channel)的偏移量。
在上述实施例中，预定义车间通信V2V针对不同业务的资源配置，包括但不限于配置V2V周期性业务的数据资源池，该数据资源池中每个重复周期包含N个(L*C)子帧，L为横向彼此需要互听的车道数目，L>＝3，C为车道前后(即纵向)需要互听的数目C>＝3，N为车辆一次发送所占用的子帧数，N>＝1。
V2V的数据资源池可以配置为独立资源池Vdata，即通过资源块RB指示参数指示频域资源，时域资源由子帧指示参数指示，其子帧偏移可以是Vdata边界相对于DFN/SFN#0的起始偏移量，该数据资源池的重复周期P1，且每个重复周期P1内包括一个可互听的数据资源数。一种是频分D2D资源池，即在一个SA资源池的资源周期内，V2V与D2D频分SA1资源池和数据资源池，即相对于D2D SA的偏移量，每个SA资源池的资源周期包含多个N个(L*C)子帧重复周期，即指示与D2D资源池相对的频率偏置，V2V的数据资源池按N个(L*C)子帧在SA周期内重复，即指示每个数据包的子帧数，需要能互听的V2V数目。如N＝1即每个V2V数据包有1个子帧，则在一个SA周期内的V2V的bitmap＝L*C，在一个SA周期内重复指示。
在本发明的上述实施例中，车间通信V2V资源池的控制信道SA1资源池的配置信息至少包括：资源周期P2、用于指示频域资源的RB至少参数以及用于指示子帧偏置的子帧指示参数。
可选地，子帧指示参数用于指示SA1资源池的资源周期P2的起点相对于DEN/SEN#0的起始偏移量、或子帧指示参数用于指示SA1的资源周期P2的起点相对于R12的PSCCH的偏移量。
可选地，每个SA1资源池占用一个时域子帧，SA1资源池的子帧按频域资源划分为M个资源单元。
可选地，M个资源单元中有部分资源单元用于车辆告警的控制信息，控制信息为用于指示其通讯的调度信息。
具体地，V2V的控制信道SA1资源池的SA1资源周期P2，且每个V2V的SA1资源周期P2内仅包含一个子帧，且这个子帧按频域资源划分为M个资源单元。
可选地，子帧指示参数用于指示SA1资源池的资源周期P2的起点相对于D2D帧数/系统帧数DFN/SFN#0的起始偏移量、或子帧指示参数用于指示SA1的资源周期P2的起点相对于3GPP R12的PSCCH的偏移量。
在上述实施例中，预定义V2V针对不同业务的资源配置，包括但不限于配置V2V的控制信道SA1资源池，该SA1资源池的周期预配置为P2，时域占用一个子帧。其中的子帧偏置offset可以是两种配置，一种是SA1的边界相对于DFN/SFN#0的起始偏移量，一种是相对于D2D SA的偏移量。该SA1资源池优先级高于SA、data数据资源池的配置和其它V2V资源池，即在SA和SA1通告的数据资源位置，若SA1子帧位置与SA或data资源池重叠，没有事件触发型业务(事件触发型播报事件)的UE将不在与SA1子帧重叠的位置发送SA和data； 有事件触发型业务的UE在SA1中通告其数据业务，相应的data资源池与SA1通告的子帧重复的位置将不发送业务，其它用户根据SA1的通告(即上述的通知消息)，在相应的资源上进行侦听。
在本发明上述实施例中，V2V资源池不局限于用于突发性紧急业务的控制信道资源池(SA1)和数据资源池，该共享资源池Vdata或与D2D共享资源池，其中Vdata资源池用于周期性广播车辆的位置，速度，加速度，运动轨迹等车辆运动参数。
具体地，上述实施例中，UE基于资源配置模块在相关的资源池中检测相关信息，在SA1资源池UE1根据触发类型及周期广播的子帧位置，如没有周期广播，则随机选择发送资源，其它不发送UE检测控制信息及其相关的资源占用情况，如其发送的数据资源被SA1的资源占用，则其数据资源将不再发送。在Vdata资源池检测车辆发送周期性广播，且根据其前方车辆的资源子帧位置配置车辆发送子帧。通过该方案，采用本发明所述的方法和装置(系统)，与相关技术相比，通过V2V资源侦听选择分配，达到了与周围车辆之间可以保证互听，通过SA1预配置资源池，保证了突发性资源的预占用性，采用较少的资源开销使得其它的业务在听到其资源占用通知后，将避让数据资源，减少数据资源冲突。
下面结合图2至图6详述本发明实施例，如图2至图6所示，本发明实施例中的方法可以通过如下步骤实现：
如图2所示的步骤S202：用户设备(UE)获取资源预配置信息。
其中，资源预配置信息至少包括用于V2V通讯的数据资源池和用于突发性紧急业务的控制信道资源池SA1。其中SA1资源池用于突发性事件的资源调度，而周期型播报业务资源的数据资源池用于周期性播报车辆的位置信息，移动速度，加速度及运动轨迹。
具体而言，事件触发型资源是预留资源，为了减小固定资源预留的开销，仅预留资源调度信息的资源且为周期性预留，保证突发业务可以在最近一个SA1子帧进行的播报其资源占用。
具体地，SA1资源池配置的相关信息，因为V2V业务事件触发类业务时间要求较高，该SA1资源池的SA1资源周期一般最小时延要求20ms，最大时延要求100ms，因此SA1周期可定义为：[10,20,30,40]。其中，SA1的资源池参数(即上述实施例中的预配置信息)可以包括：1)RB指示参数，用于指示频域资源；2)子帧指示参数用于指示子帧偏置offset，该子帧偏置offset可以是两种配置，一种是SA1的边界相对于DFN/SFN#0的起始偏移量，一种是相对于D2D SA的偏移量；3)SA1资源池的资源周期，该资源周期可被配置为[10,20,30,40]ms。其中，SA1资源池可以将所配置的频率资源根据SA1的资源周期大小划分为M个SA1资源，每个SA1资源占用一个子帧。
可选地，V2V的数据资源池，一种是通过独立参数配置即通过重复周期、频域RB参数、子帧与相对于DFN/SFN#0的起始偏移量、以及每个周期内的子帧数目位图指示参数。该重复周期P2小于100ms，每个重复周期中至少包括L*C个可用子帧，L>＝3,C>＝3；另一种方式是 与D2D数据资源池共享与SA的关系，在SA资源周期内发送V2V资源，与D2D频分频域资源，其中V2V的控制信道可以与SA频分频域资源，也可以位于V2V数据子帧的前面几个子帧如图4a，或与V2V同子帧发送如图4b所示。当V2V与SA频分频域资源时，其控制信道的位置关于与图4a一致，且与其后V2V的data子帧位置关系一一对应。该数据资源池配置的L*C个子帧可以是连续子帧也可以是不连续子帧，通过资源池参数指示。
步骤S204：用户设备在获知预配置资源后，根据业务等级在预配置资源池进行资源抢占及其占用资源的播报。
可选地，SA1的资源抢占为UE根据触发类型和其周期播报时的子帧位置占用SA1的相应资源位置，重发时退避窗为其抢占的资源序号。
具体而言，频域资源为M个资源单元，由U1根据触发类型及位置关系进行抢占，如图5所示，UE1其上一个周期广播时占用第一个子帧，当其业务需要在SA1资源池发送时，则其在SA1资源池中抢占序号为1的资源池，并通告其数据资源占用情况，其它UE在接收了其通告信息后，将终止其发送业务，改为在SA1播报的资源上进行接收，其重发根据其首次选择的资源序号进行退避窗的退避，如在SA1资源池选择序号为1的资源，其退避窗为1，退避窗为1时，这间隔一个SA1周期，再下一个周期进行发送。
其中的M大于Num*(L*C)，Num为资源池的按每个周期性广播的资源频率大小的划分的频率数目，用户上一个周期在频段K1周期发送，则在M上的K1段上选择相应的序号。其中M资源中还可以保留部分资源用于救急车辆告警的控制信息指示和资源占用；当其没有周期性播报业务时，可以随机选择除固定保留的资源外的资源。
对于数据库资源池而言，在确定发送待发送信息的子帧时，选择需要侦听其前面发送的用户的资源占用情况，车行驶路线上最大可以互听的距离，根据其侦听结果，决定其发送子帧，如图3所示，车辆在道路上瞬时的位置关系。
方案一：采用控制信道独立的方式，按4*3考虑，即4车道，前后一辆车可以互听，控制信道0，13，14为特殊信道，分别用于0用于医疗急救车辆，13用于消防车辆，14用于警用车辆；首先A11，A21，A31，A41没有听到来自其前方和左方的资源占用，则按车道的位置关系，选择控制信道的1，2，3，4位置发送；其余车辆根据其车道和与A11，A21，A31，A41车辆的相对位置关系选择，如A12占用资源5，A22占用资源6，A32占用资源7，A42占用资源8，A33占用11，A43占用资源12，其数据资源有两种方式，一种方式与控制信道一一对应，即每个控制信道对应相应的数据子帧，即数据信道与控制信道序号有一定对应关系，如数据信道子帧0对应于0,子帧1对应于1，或数据信道子帧0，子帧1对应于控制信道0，数据信道子帧2，3对应控制信道1；一种方式是侦听来自其它序号的资源占用情况，选择没有使用的子帧作为数据子帧，其控制信道发送车辆的车号，位置等关系，频域资源位置，如图4a所示。
方案二：控制信道与数据子帧同子帧发送，数据资源序号与控制资源序号相同：首先A11，A21，A31没有听到来自其前方的资源占用，则按车道的位置关系，选择一个空余频率资源 K1，占用子帧0,1,2，3；第一周期A2车道的22号车位于车道A2在听到A11，A21，A31占用子帧0,1,2后选择空两个子帧3,4后的子帧5发送频域资源且与A11，A21，A31频域资源相同，第二周期如图b31车辆在加入队列后，由于位于A3车道，其可用子帧为2,6,10，侦听到来自前方车辆的10,11子帧被车辆A33，A43占用，则b31车辆位于A3车道，选择另一频段K2的2号子帧发送，a33车辆选择移动后位于车道A2，听其前方A22，A32在本帧的位于子帧5，6，根据A2车道的子帧应为1，5，9，则选择子帧9发送，如图4b所示。
通过本申请的上述实施例，双向4车道，按一个车周围的车辆可以互听，如图6所示，对于城市交通部分路段没有正向逆向车道之间的隔离结构，因此互听结构包括逆向车道的车辆，采用3*3结构，在每个车道有固定的子帧序号，如正向车道的a1车道的车辆子帧序号一直为1,4,7，a2车道的车辆子帧序号一直为2,5,8，a3车道的车辆子帧序号一直为3,6,9，a4车道的车辆子帧序号一直为1,4,7，逆向车道b4需与a1车道之间保持互听，这b4车道的车辆子帧序号为3,6,9，b3车道的车辆子帧序号为2,5,8，b2车道的车辆子帧序号为1,4,7,b1车道的车辆子帧序号为3,6,9，“/”后是移动之后的序号，因此逆向车道的车辆b4与a1可以保证互听，且每个车道周围的车辆可以互听。当有车辆变道时，将根据其车辆的车道进行子帧变换，具体子帧号由其前车和同相车道的左车决定。如位于a3车道的车辆在本周期位于子帧6，它将在下一个周期变道a2，在第二周期通过监听其前面车辆位于子帧1,2，则其变道a2后，将位于子帧5，而本周期位于子帧5的车辆，在下一周期监控其前面车辆位于子帧5，则其将在下一周期在子帧8发送，而本周期位于子帧8的车辆，下一周期将根据其前面车辆在子帧8发送，根据车道将选择子帧2发送，其发送频段将根据其左面用户位于子帧1的车辆频段在同一频段。
此外，上述装置的具体处理流程同上述方法所述，故于此不再赘述。
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计算机程序流程来实现，所述计算机程序可以存储于一计算机可读存储介质中，所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行，在执行时，包括方法实施例的步骤之一或其组合。
可选地，上述实施例的全部或部分步骤也可以使用集成电路来实现，这些步骤可以被分别制作成一个个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
上述实施例中的各装置/功能模块/功能单元可以采用通用的计算装置来实现，它们可以集中在单个的计算装置上，也可以分布在多个计算装置所组成的网络上。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本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可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机， 服务器，或者网络设备等)执行本发明各个实施例所述的方法。
在本实施例中还提供了一种用于道路车辆的通讯系统的传输装置，该装置用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
该通讯系统的传输装置可以包括如图7所示的：第一获取单元10、第二获取单元20、以及处理单元30。
其中，第一获取单元10，设置为获取待发送信息的触发类型，其中，触发类型包括：事件触发型播报和周期型播报；第二获取单元20，设置为获取与触发类型对应的车间通信V2V资源池的预配置信息；处理单元30，设置为根据预配置信息确定待发送信息的子帧，并使用确定的子帧发送待发送信息。
通过图7所示的各单元，在确定待发送信息的触发类型之后，获取与该触发类型对应的车间通信V2V资源池的预配置信息，然后根据触发类型对应的预配置信息确定发送待发送信息的子帧，通过该子帧发送待发送信息，通过本申请，将事件触发型播报事件和周期型播报事件通过不同资源池的配置信息确定发送待发送信息的子帧，解决了车间通信V2V的通信机制容易发生资源抢占导致发送碰撞的问题，提高了通过车间通信V2V进行车间通信的稳定性和及时性。
在一个可选的实施例中，第二获取单元20可以包括：第一获取模块，设置为获取终端所在的当前车辆所在道路的道路信息；第二获取模块，设置为若触发类型为事件触发型播报事件，则获取与道路信息对应的V2V资源池中控制信道SA1资源池的预配置信息；第三获取模块，设置为若触发类型为周期型播报事件，则获取与道路信息对应的V2V资源池中数据资源池的预配置信息。
通过上述实施例，基于R12的基本构架，采用资源池的配置信息的设置和基于道路信息的资源池选择的方法，可以使得突发性事件的紧急播报(即上述实施例中的事件触发型播报事件)及时发送。
具体地，可以先基于待发送信息的触发类型获取资源预配置信息，所述预配置信息至少包括V2V资源池配置与道路相关的配置信息，即该预配置信息可以与道路信息相关。
其中，道路信息可以包括：车辆行进的路线、道路位置信息、。及最大可互听的车辆个数。
可以基于上述的道路信息、预配置信息(可以包括互听范围)以及前面车辆子帧位置确定选择发送的子帧序号。
在一个可选的实施例中，处理单元30包括：范围获取模块，设置为若触发类型为周期型播报事件，则获取与道路信息中的道路位置信息和车辆间距信息对应的当前车辆所属的互听范围；第一子帧确定模块，设置为基于道路信息中当前车辆所在车道的车道信息、预配置信 息中的周期信息和预配置信息中的子帧序号信息确定待发送信息的子帧，其中，前车为在互听范围内且位于当前车辆车头位置之前的车辆。
可选地，第一子帧确定模块包括：关系获取子模块，设置为获取当前车辆的前车所使用的播报子帧和当前车辆与前车的位置关系；第一子帧确定子模块，设置为若前车没有子帧发送或播报子帧位于周期信息中当前周期的前X个子帧，则利用子帧序号信息从当前周期中读取与车道信息和位置关系对应的子帧序号，以确定待发送信息的子帧，其中，X为自然数，前X个子帧为当前周期中位于指定子帧之前的子帧；第二子帧确定子模块，设置为若前车没有子帧发送或播报子帧位于周期信息中当前周期的后Y个子帧，则利用子帧序号信息从当前周期的下一周期中读取与车道信息和位置关系对应的空余频段的子帧序号，以确定待发送信息的子帧，其中，Y为自然数，后Y个子帧为当前周期中位于指定子帧之后的子帧。
具体地，在当前车辆所属的互听范围内，若在当前车辆的前面、左面没有(播报)子帧发送或侦听到的是V2V周期的最后几个子帧位置(即上述的后Y个子帧)，则选择当前周期的下一周期中的某个空余频段的子帧序号发送，且发送子帧的位置与车道相关。如对于3*3的不可互听结构，车道A1上行驶的车辆可以为序号为：1、4、7的子帧。
在一个可选的实施例中，处理单元30可以包括：第二子帧确定模块，设置为若触发类型为事件触发型播报，且终端在获取待发送信息之前按照周期播报事件，则终端根据终端在上一个周期播报时使用的子帧序号在SA1资源池中确定资源序号，并在资源序号确定的资源上播报待发送信息的调度信息；第三子帧确定模块，设置为若触发类型为事件触发型播报，且终端在获取待发送信息之前未按照周期播报事件，则终端在SA1资源池中随机确定资源序号，并在资源序号确定的资源上播报待发送信息的调度信息，或在特定的资源序号上播报待发送信息的调度信息。
可选地，车间通信V2V资源池的数据资源池的预配置信息至少包括：重复周期P1、用于指示频域资源的RB指示参数、用于指示子帧偏置的子帧偏置参数以及每个重复周期内的子帧指示参数。
可选地，子帧偏置参数用于指示重复周期P1的起点相对于D2D帧数/系统帧数DEN/SEN#0的起始偏移量、或子帧偏置参数用于指示重复周期P1的起点相对于3GPPR12的PSCCH的偏移量。
可选地，每个重复周期P1内包含N个(L*C)子帧，其中，N用于表示车辆一次发送事件信息所占用的子帧数，N为大于或等于1的整数，L用于表示纵向互听的车辆数，L为大于或等于3的整数，C用于表示横向互听的车辆数，C为大于或等于3的整数。
在本发明的一个实施例中，车间通信V2V资源池的控制信道SA1资源池的配置信息至少包括：资源周期P2、用于指示频域资源的RB至少参数以及用于指示子帧偏置的子帧指示参数。
可选地，子帧指示参数用于指示SA1资源池的资源周期P2的起点相对于D2D帧数/系统 帧数DEN/SEN#0的起始偏移量、或子帧指示参数用于指示SA1的资源周期3GPP P2的起点相对于R12的PSCCH的偏移量。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述模块分别位于多个处理器中。
本发明的实施例还提供了一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的程序代码：
S1，终端获取待发送信息的触发类型，其中，所述触发类型包括：事件触发型播报和周期型播报；
S2，获取与所述触发类型对应的车间通信V2V资源池的预配置信息；
S3，根据所述预配置信息确定所述待发送信息的子帧，并使用确定的所述子帧发送所述待发送信息。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
S4，获取所述终端所在的当前车辆所在道路的道路信息；
S5，若所述触发类型为所述事件触发型播报事件，则获取与所述道路信息对应的所述V2V资源池中控制信道SA1资源池的预配置信息；
S6，若所述触发类型为所述周期型播报事件，则获取与所述道路信息对应的所述V2V资源池中数据资源池的预配置信息。
通过该方案，采用本发明所述方法和装置(系统)，与相关技术相比，通过V2V资源侦听选择分配，达到了与周围车辆之间可以保证互听，通过SA1预配置资源池，保证了突发性资源的预占用性，采用较少的资源开销使得其它的业务在听到其资源占用通知后，将避让数据资源，减少数据资源冲突。
可选地，在本实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
可选地，本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例，本实施例在此不再赘述。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个 集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实用性
如上所述，本发明实施例提供的一种用于道路车辆的通讯系统传输方法及装置具有以下有益效果：将事件触发型播报事件和周期型播报事件通过不同资源池的配置信息确定发送待发送信息的子帧，解决了车间通信V2V的通信机制容易发生资源抢占导致发送碰撞的问题，提高了通过车间通信V2V进行车间通信的稳定性和及时性。

Claims (28)

  1. 一种用于道路车辆的通讯系统的传输方法，包括：
    终端获取待发送信息的触发类型，其中，所述触发类型包括：事件触发型播报和周期型播报；
    获取与所述触发类型对应的车间通信V2V资源池的预配置信息；
    根据所述预配置信息确定所述待发送信息的子帧，并使用确定的所述子帧发送所述待发送信息。
  2. 根据权利要求1所述的方法，其中，获取与所述触发类型对应的车间通信V2V资源池中的预配置信息包括：
    获取所述终端所在的当前车辆所在道路的道路信息；
    若所述触发类型为所述事件触发型播报事件，则获取与所述道路信息对应的所述V2V资源池中控制信道SA1资源池的预配置信息；
    若所述触发类型为所述周期型播报事件，则获取与所述道路信息对应的所述V2V资源池中数据资源池的预配置信息。
  3. 根据权利要求2所述的方法，其中，根据所述预配置信息确定所述待发送信息的子帧包括：
    若所述触发类型为所述周期型播报事件，则获取与所述道路信息中的道路位置信息和车辆间距信息对应的所述当前车辆所属的互听范围；
    基于所述道路信息中当前车辆所在车道的车道信息、所述预配置信息中的周期信息和所述预配置信息中的子帧序号信息确定所述待发送信息的子帧，
    其中，所述前车为在所述互听范围内且位于所述当前车辆车头位置之前的车辆。
  4. 根据权利要求3所述的方法，其中，基于所述道路信息中当前车辆所在车道的车道信息、所述预配置信息中的周期信息和所述预配置信息中的子帧序号信息确定所述待发送信息的子帧包括：
    获取所述当前车辆的前车所使用的播报子帧和所述当前车辆与所述前车的位置关系；
    若所述前车没有子帧发送或所述播报子帧位于所述周期信息中当前周期的前X个子帧，则利用所述子帧序号信息从所述当前周期中读取与所述车道信息和所述位置关系对应的子帧序号，以确定所述待发送信息的子帧，其中，X为自然数，所述前X个子帧为所述当前周期中位于指定子帧之前的子帧；
    若所述前车没有子帧发送或所述播报子帧位于所述周期信息中当前周期的后Y个子帧，则利用所述子帧序号信息从所述当前周期的下一周期中读取与所述车道信息和所述 位置关系对应的空余频段的子帧序号，以确定所述待发送信息的子帧，其中，Y为自然数，所述后Y个子帧为所述当前周期中位于所述指定子帧之后的子帧。
  5. 根据权利要求3所述的方法，其中，所述周期型播报的信息中包括：车辆的速度、车辆的位置、车辆的加速度以及车辆的运动轨迹中的至少之一。
  6. 根据权利要求2所述的方法，其中，根据所述预配置信息确定所述待发送信息的子帧包括：
    若所述触发类型为所述事件触发型播报，且所述终端在获取所述待发送信息之前按照周期播报事件，则所述终端根据所述终端在上一个周期播报时使用的子帧序号在所述SA1资源池中确定资源序号，并在所述资源序号确定的资源上播报所述待发送信息的调度信息；
    若所述触发类型为所述事件触发型播报，且所述终端在获取所述待发送信息之前未按照周期播报事件，则所述终端在所述SA1资源池中随机确定所述资源序号，并在所述资源序号确定的资源上播报所述待发送信息的调度信息，或在特定的资源序号上播报所述待发送信息的调度信息。
  7. 根据权利要求6所述的方法，其中，在所述资源序号确定的资源上播报所述待发送信息的调度信息包括：
    所述终端生成用于通知所述终端所占用所述子帧的通知消息，并将所述通知消息发送至所述当前车辆所属覆盖范围内的其他车辆。
  8. 根据权利要求7所述的方法，其中，在将所述通知消息发送至所述当前车辆所属覆盖范围内的其他车辆之后，所述方法还包括：
    在所述其他车辆的终端接收到所述通知消息之后，所述其他车辆的终端按照所述通知消息所指示的所述子帧的信息选择所述其他车辆的终端的发送子帧，其中，选择的所述其他车辆的终端的发送子帧与播报所述待发送信息的所述子帧不冲突。
  9. 根据权利要求6所述的方法，其中，在所述终端根据所述终端在上一个周期播报时使用的子帧序号在所述SA1资源池中确定资源序号之后，所述方法还包括：
    根据所述待发送信息在所述资源序号N确定重发窗参数N；
    在间隔N个资源周期P2后的SA2资源池的资源序号N上重新发送所述待发送信息的调度信息，其中，N为自然数。
  10. 根据权利要求9所述的方法，其中，
    在根据所述待发送信息在所述资源序号N确定重发窗参数N的同时，所述方法还包括：
    根据所述待发送信息的子帧的序号的最大时间窗；若确定的所述重发窗参数大于所 述最大时间窗的值，则采用正序或反序方式推算重发窗参数，得到推算后的重发窗参数；
    在使用重发子帧重发所述待发送信息之后，所述方法还包括：若预设重发事件未解除，则调整最大时间窗的值，并基于调整后的最大时间窗确定重发窗参数，并使用该重发窗参数再次重发；或随机选择重发窗，以在所述SA1资源池上随机选择的重发资源。
  11. 根据权利要求2至10中任意一项所述的方法，其中，所述道路信息包括下述参数中的至少之一：所述当前车辆所在道路的路况、所述道路的类型、以及可互听的车辆数。
  12. 根据权利要求1所述的方法，其中，所述车间通信V2V资源池的数据资源池的预配置信息至少包括：重复周期P1、用于指示频域资源的RB指示参数、用于指示子帧偏置的子帧偏置参数以及每个重复周期内的子帧指示参数。
  13. 根据权利要求12所述的方法，其中，所述子帧偏置参数用于指示所述重复周期P1的起点相对于D2D帧数/系统帧数DFN/SFN#0的起始偏移量、或所述子帧偏置参数用于指示所述重复周期P1的起点相对于3GPP R12的PSCCH的偏移量。
  14. 根据权利要求12所述的方法，其中，每个所述重复周期P1内包含N个(L*C)子帧，其中，N用于表示车辆一次发送事件信息所占用的子帧数，N为大于或等于1的整数，L用于表示纵向互听的车辆数，L为大于或等于3的整数，C用于表示横向互听的车辆数，C为大于或等于3的整数。
  15. 根据权利要求1所述的方法，其中，所述车间通信V2V资源池的控制信道SA1资源池的配置信息至少包括：资源周期P2、用于指示频域资源的RB至少参数以及用于指示子帧偏置的子帧指示参数。
  16. 根据权利要求15所述的方法，其中，所述子帧指示参数用于指示所述SA1资源池的资源周期P2的起点相对于D2D帧数/系统帧数DFN/SFN#0的起始偏移量、或所述子帧指示参数用于指示所述SA1的资源周期P2的起点相对于3GPP R12的PSCCH的偏移量。
  17. 根据权利要求15所述的方法，其中，每个所述SA1资源池占用一个时域子帧，所述SA1资源池的子帧按频域资源划分为M个资源单元。
  18. 根据权利要求17所述的方法，其中，所述M个资源单元中有部分资源单元用于车辆告警的控制信息，所述控制信息为用于指示其通讯的调度信息。
  19. 一种用于道路车辆的通讯系统的传输装置，包括：
    第一获取单元，设置为获取待发送信息的触发类型，其中，所述触发类型包括：事件触发型播报和周期型播报；
    第二获取单元，设置为获取与所述触发类型对应的车间通信V2V资源池的预配置信息；
    处理单元，设置为根据所述预配置信息确定所述待发送信息的子帧，并使用确定的 所述子帧发送所述待发送信息。
  20. 根据权利要求19所述的装置，其中，所述第二获取单元包括：
    第一获取模块，设置为获取所述终端所在的当前车辆所在道路的道路信息；
    第二获取模块，设置为若所述触发类型为所述事件触发型播报事件，则获取与所述道路信息对应的所述V2V资源池中控制信道SA1资源池的预配置信息；
    第三获取模块，设置为若所述触发类型为所述周期型播报事件，则获取与所述道路信息对应的所述V2V资源池中数据资源池的预配置信息。
  21. 根据权利要求20所述的装置，其中，所述处理单元包括：
    范围获取模块，设置为若所述触发类型为所述周期型播报事件，则获取与所述道路信息中的道路位置信息和车辆间距信息对应的所述当前车辆所属的互听范围；
    第一子帧确定模块，设置为基于所述道路信息中当前车辆所在车道的车道信息、所述预配置信息中的周期信息和所述预配置信息中的子帧序号信息确定所述待发送信息的子帧，
    其中，所述前车为在所述互听范围内且位于所述当前车辆车头位置之前的车辆。
  22. 根据权利要求21所述的装置，其中，所述第一子帧确定模块包括：
    关系获取子模块，设置为获取所述当前车辆的前车所使用的播报子帧和所述当前车辆与所述前车的位置关系；
    第一子帧确定子模块，设置为若所述前车没有子帧发送或所述播报子帧位于所述周期信息中当前周期的前X个子帧，则利用所述子帧序号信息从所述当前周期中读取与所述车道信息和所述位置关系对应的子帧序号，以确定所述待发送信息的子帧，其中，X为自然数，所述前X个子帧为所述当前周期中位于指定子帧之前的子帧；
    第二子帧确定子模块，设置为若所述前车没有子帧发送或所述播报子帧位于所述周期信息中当前周期的后Y个子帧，则利用所述子帧序号信息从所述当前周期的下一周期中读取与所述车道信息和所述位置关系对应的空余频段的子帧序号，以确定所述待发送信息的子帧，其中，Y为自然数，所述后Y个子帧为所述当前周期中位于所述指定子帧之后的子帧。
  23. 根据权利要求20所述的装置，其中，所述处理单元包括：
    第二子帧确定模块，设置为若所述触发类型为所述事件触发型播报，且所述终端在获取所述待发送信息之前按照周期播报事件，则所述终端根据所述终端在上一个周期播报时使用的子帧序号在所述SA1资源池中确定资源序号，并在所述资源序号确定的资源上播报所述待发送信息的调度信息；
    第三子帧确定模块，设置为若所述触发类型为所述事件触发型播报，且所述终端在获取所述待发送信息之前未按照周期播报事件，则所述终端在所述SA1资源池中随机确定所述资源序号，并在所述资源序号确定的资源上播报所述待发送信息的调度信息或在特定的资源序号资源上播报所述待发送信息的调度信息，或在特定的资源序号上播报所述待发送信息的调度信息。
  24. 根据权利要求19所述的装置，其中，所述车间通信V2V资源池的数据资源池的预配置信息至少包括：重复周期P1、用于指示频域资源的RB指示参数、用于指示子帧偏置的子帧偏置参数以及每个重复周期内的子帧指示参数。
  25. 根据权利要求24所述的装置，其中，所述子帧偏置参数用于指示所述重复周期P1的起点相对于D2D帧数/系统帧数DEN/SEN#0的起始偏移量、或所述子帧偏置参数用于指示所述重复周期P1的起点相对于3GPPR12的PSCCH的偏移量。
  26. 根据权利要求24所述的装置，其中，每个所述重复周期P1内包含N个(L*C)子帧，其中，N用于表示车辆一次发送事件信息所占用的子帧数，N为大于或等于1的整数，L用于表示纵向互听的车辆数，L为大于或等于3的整数，C用于表示横向互听的车辆数，C为大于或等于3的整数。
  27. 根据权利要求19所述的装置，其中，所述车间通信V2V资源池的控制信道SA1资源池的配置信息至少包括：资源周期P2、用于指示频域资源的RB至少参数以及用于指示子帧偏置的子帧指示参数。
  28. 根据权利要求27所述的装置，其中，所述子帧指示参数用于指示所述SA1资源池的资源周期P2的起点相对于D2D帧数/系统帧数DEN/SEN#0的起始偏移量、或所述子帧指示参数用于指示所述SA1的资源周期3GPP P2的起点相对于R12的PSCCH的偏移量。
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