WO2018058594A1 - 一种v2x通信的方法、设备及系统 - Google Patents

一种v2x通信的方法、设备及系统 Download PDF

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Publication number
WO2018058594A1
WO2018058594A1 PCT/CN2016/101236 CN2016101236W WO2018058594A1 WO 2018058594 A1 WO2018058594 A1 WO 2018058594A1 CN 2016101236 W CN2016101236 W CN 2016101236W WO 2018058594 A1 WO2018058594 A1 WO 2018058594A1
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WO
WIPO (PCT)
Prior art keywords
base station
data packet
terminal
radio resource
resource
Prior art date
Application number
PCT/CN2016/101236
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English (en)
French (fr)
Inventor
曹振臻
刘航
肖潇
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201680089384.6A priority Critical patent/CN109716845B/zh
Priority to JP2019514251A priority patent/JP6741283B2/ja
Priority to PCT/CN2016/101236 priority patent/WO2018058594A1/zh
Priority to BR112019006383A priority patent/BR112019006383A2/pt
Priority to EP16917344.0A priority patent/EP3506706B1/en
Publication of WO2018058594A1 publication Critical patent/WO2018058594A1/zh
Priority to US16/365,925 priority patent/US10993093B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method, device, and system for V2X communication.
  • the vehicle networking system aims to improve road safety, improve traffic efficiency and provide users with rich streaming services through communication between vehicles and X (Vehicle-to-X, V2X).
  • the V2X includes V2V (Vehicle to Vehicle), V2I (Vehicle-to-Infrastructure, Vehicle and Infrastructure), and V2P (Vehicle-to-Pedestrian, Vehicle and Pedestrian Handheld Terminal).
  • the V2V data packet communicated between the vehicle A and the vehicle B includes different service types, such as a CAM (Cooperative Awareness Message) type and a DENC (Decentralized Environmental Notification Message). , Decentralized environment notification information) type, BSM (Basic Safety Message) type, etc.
  • the CAM type V2X data packet contains the basic driving situation information of the current vehicle position, speed, orientation, etc., DEMN type
  • the V2X packet contains some emergency information triggered by the current vehicle, such as emergency braking.
  • a correspondence between a service type and a priority is configured.
  • the vehicle transmits a V2X packet with a high priority after acquiring the resource, for example, a CAM type V2X packet. If the priority is lower than the DE2 type V2X data packet, if the vehicle A needs to send the CAM type V2X data packet and the DEMN type V2X data packet to the vehicle B, the vehicle transmits the first resource when only one data packet can be transmitted. DENM type V2X packet.
  • the invention provides a method, a device and a system for V2X communication, which are used to solve the problem that the reliability of data transmission with high priority can only be guaranteed in the current V2X communication process.
  • a method of V2X communication comprising:
  • the terminal acquires the correspondence between the priority of the V2X data packet and the value range of the V2X communication parameter, and determines the value range of the V2X communication parameter corresponding to the priority of the V2X data packet according to the priority and the corresponding relationship of the V2X data packet, and then, from A V2X communication parameter value is selected from the determined V2X communication parameter value range; finally, the V2X data packet is transmitted on the radio resource according to the selected V2X communication parameter value.
  • the V2X communication parameter includes at least one of the following parameters: an MCS (Modulation and Coding Scheme), a number of transmissions, a transmission power, and a number of occupied RBs (Resource Blocks).
  • V2X communication parameter value ranges wherein the V2X communication parameter value ranges corresponding to different priorities may overlap, and the V2X communication parameter value range may be a value, Can be an interval.
  • the correspondence between the priority and the value range of the V2X communication parameter may be pre-configured in the terminal.
  • the priority of the V2X data packet to be transmitted is determined in advance.
  • V2X communication parameter value range is determined in advance.
  • the base station after the base station determines the correspondence between the priority of the V2X data packet and the V2X communication parameter, the base station sends the correspondence between the priority and the V2X communication parameter to the terminal, and the terminal sends the corresponding relationship by the receiving base station.
  • the correspondence between the priority and the value range of the V2X communication parameter is used to obtain the correspondence between the priority and the value range of the V2X communication parameter.
  • the correspondence between the priority and the V2X communication parameter value range is preset in the base station, the correspondence between the priority determined by the base station and the V2X communication parameter is pre-configured.
  • the base station determines the priority according to the algorithm pre-configured in the base station Correspondence between the level and the V2X communication parameter value range.
  • the base station sends SIB (System Information Block) information or RRC (Radio Resource Control) signaling to the terminal, and carries priority and V2X through SIB information or RRC signaling.
  • SIB System Information Block
  • RRC Radio Resource Control
  • the V2X communication parameter value range corresponding to the low priority level may be configured to enable the transmission of the low priority V2X data packet.
  • the V2X communication parameter value range corresponding to the level allocates more transmission resources for the high priority data packet, thereby improving the accuracy of the high priority V2X data packet to some extent.
  • the number of transmissions may be the number of transmissions of the V2X data packet in the MAC (Media Access Control) layer, where the V2X data packet is a PDU (Packet Data Unit) in the MAC layer.
  • the side link process is used to transmit the V2X data on the side link; the number of transmissions may also be a HARQ (Hybrid-ARQ) process transmission number, wherein it should be understood that it may be based on the implementation of the present invention.
  • the HARQ mechanism retransmits V2X packets.
  • the terminal in the embodiment of the present invention transmits the V2X data packet on the radio resource based on the correspondence between the priority of the V2X data packet and the value range of the V2X communication parameter. Therefore, when the transmission resource is tight, the correspondence can be configured. To some extent, improve the transmission reliability of lower priority packets.
  • a method of transmitting a data packet including:
  • the terminal receives the indication information from the base station, where the indication information is used to indicate that the base station is a radio resource scheduled by the terminal, and transmits the first data packet on the radio resource, where the radio resource includes a SPS (Semi-Persistent Scheduling) wireless Resource or dynamically schedule wireless resources.
  • SPS Semi-Persistent Scheduling
  • the base station pre-arranges radio resources for the K data packets to be transmitted in the time period at the beginning time of the time period, if the time period is If a data packet needs to be transmitted at a certain time, the data packet is directly transmitted on the radio resource scheduled by the base station, and the radio resource that the base station transmits the data scheduling in the terminal for a certain period of time is the SPS radio resource.
  • the dynamic scheduling of the radio resource is that when the terminal needs to transmit the data packet, the base station schedules the radio resource for the data packet that the terminal needs to transmit.
  • the terminal transmits the data packet on the SPS radio resource or the dynamic radio resource scheduled by the base station, thereby improving the efficiency of the terminal transmitting the data packet.
  • the terminal determines, from the data packet before transmitting the first data packet, N times that meet the preset condition. And determining, according to the N second data packets, the target parameter, and sending the target parameter to the base station, so that the base station determines, according to the target parameter, the size of the radio resource scheduled by the base station, where N is a positive integer not less than zero;
  • the target parameters include at least one of the following:
  • the size of the largest data packet among the N second data packets The size of the largest data packet among the N second data packets, the size of the smallest data packet among the N second data packets, and the average size of the N second data packets.
  • the preset condition may be a packet group closest to the first data packet before the first data packet is transmitted, where the data packet group includes M data packets, where M is greater than A positive integer of 0, for example, the first data packet transmitted is the 7th data packet transmitted by the terminal. If the value of M is 3, the data packet group includes the 4th data packet and the 5th data packet transmitted by the terminal.
  • the preset condition may also be a data packet in the preset time period T before the first data transmitted, for example, the preset time period T is from 14:00 to 14:20, as at the time
  • the data packet transmitted in the segment includes the 4th data packet and the 5th data packet, and the 4th data packet and the 5th data packet are data packets satisfying the preset condition, such as the data packet transmitted during the time period.
  • a value of 0 sets the target parameter to 0.
  • the value of the M or T may be pre-configured in the terminal, or the base station sends the SIB information or the RRC signaling to the terminal, and carries the value of the M or T through the SIB information or the RRC signaling, and the terminal receives the SIB information sent by the base station or RRC signaling to obtain the value of M or T.
  • the base station can perform radio resource scheduling according to the information, which increases the accuracy and efficiency of the scheduling.
  • the terminal in order to improve the possibility of successfully transmitting the first data packet, optionally, after receiving the radio resource scheduled by the base station, the terminal first determines whether the radio resource size scheduled by the base station can accommodate the first data packet, if Determining that the base station is capable of accommodating the first data packet, and transmitting the first data packet on the radio resource scheduled by the base station; if it is determined that the base station size cannot accommodate the first data packet, sending a resource request message to the base station, where the resource request message Used to request wireless resources from a base station. If the terminal configures the restriction of sending the resource request, the terminal cancels the restriction of sending the resource request, where the limitation of sending the resource request includes SR-Mask (Scheduling Request, Masking Request).
  • the resource request message may include a scheduling request message or user assistance information.
  • the scheduling request message is that the terminal sends a scheduling request to the base station, indicating that the terminal side has data waiting to be sent, but the corresponding resource is lacking.
  • the base station will schedule a small amount of resources for the user to report the amount of data in the buffer area.
  • the base station will allocate more resources for data transmission; scheduling request information. It can be transmitted on a PUCCH (Physical Uplink Control Channel) or a Physical Random Access Channel (PRACH);
  • the user assistance information refers to the user reporting information related to the user to the base station, such as the amount of data.
  • the data arrival period, the offset of the data packet arrival time and the offset of the system No. 0 frame, and the like enable the base station to schedule resources for the received user assistance information.
  • the embodiment of the present invention supports V2X communication.
  • the radio resource scheduled by the base station is a radio resource used for V2X communication
  • the first data packet is a V2X data packet.
  • a method for V2X communication including:
  • the terminal receives the first resource pool configuration information from the base station, and obtains the first resource pool according to the first resource pool configuration information, and then the terminal detects the first resource pool; and determines the first resource according to the detection result.
  • the available resources in the pool then select the radio resources for V2X communication from the available resources in the first resource pool; finally, perform V2X communication on the selected radio resources.
  • the base station when the quality of the communication link between the terminal and the base station is high, the base station can schedule radio resources for the terminal, and the terminal can perform V2X communication by using the radio resources scheduled by the base station.
  • the quality of the communication link between the terminal and the base station is deteriorated, when the quality of the communication link is poor to a certain extent, the base station cannot schedule the radio resource for the terminal, and the terminal needs to detect the common resource pool configured by the base station for the terminal, from the public resource pool. Obtaining available radio resources for V2X communication.
  • the base station cannot schedule radio resources for the terminal. It takes a period of time for the terminal to detect the common resource pool configured by the base station for the terminal.
  • the terminal needs to perform V2X communication during the time period, no communication is performed.
  • the quality of the communication link between the terminal and the base station is deteriorated, but the base station can also allocate the radio resource to the terminal, and the base station can configure the first resource pool for the terminal.
  • the radio resource is obtained from the first resource pool.
  • the terminal can perform V2X communication from the radio resource acquired in the first resource pool, thereby improving the V2X.
  • the continuity of communication and to some extent, reduces the delay of V2X communication services.
  • the terminal receives the indication message that the base station starts the detection of the first resource pool, and detects the first resource pool; or determines that the quality of the communication link with the base station is less than a preset threshold, and detects the first resource pool.
  • the terminal acquires the radio resource of the first resource pool.
  • the V2X communication is performed on the available radio resources in the second resource pool.
  • the radio resource in the second resource pool is larger than the radio resource in the first resource pool, where the second resource pool is equivalent to the common resource pool in the prior art. That is, the embodiment of the present invention can obtain the radio resource scheduled by the base station without acquiring the radio resource scheduled by the base station and the radio resource in the public resource pool.
  • the wireless resources in the first resource pool perform V2X communication, thereby improving the continuity of V2X communication.
  • the first resource pool may also be a public resource pool.
  • the base station configures the first resource pool for the terminal, and then sends the SIB information or the RRC signaling to the terminal, where the SIB information or the RRC signaling carries the first resource pool configuration information, and the terminal is configured according to the
  • the first resource pool is obtained by using the SIB information sent by the base station or the first resource pool configuration information carried in the RRC signaling.
  • the manner in which the terminal acquires the second resource pool is similar to the manner in which the terminal acquires the first resource pool, and is not described here.
  • the service information of the resource pool is carried in the first resource pool configuration information and/or the second resource pool configuration information.
  • the service indication information is used to indicate whether the first resource pool can be used by a certain type of service.
  • the second resource pool configuration information carries the service indication information of the resource pool
  • the service indication information is used to indicate whether the second resource pool can be used by a certain type. Used by the business. If the service indication information indicates that the resource pool cannot be used by a certain type of service, the type of service cannot communicate using the resources in the resource pool.
  • a resource-based selection mechanism based on detection can also be employed, a random resource selection mechanism can also be employed.
  • the resource selection mechanism based on the detection means that the terminal can detect the available resources in the resource pool after detecting the resource pool for a period of time, and then select resources from the available resources for communication; the random resource selection mechanism only refers to the terminal not detecting the resource pool, and It is random to select resources from the resource pool and communicate with the selected resources.
  • the resource selection mechanism indication information of the resource pool is carried in the first resource pool configuration information and/or the second resource pool configuration information.
  • the resource selection mechanism indication information is used to indicate whether the first resource pool adopts a detection based resource selection mechanism or a random resource selection mechanism, or whether two resource selection mechanisms can be adopted.
  • the resource selection mechanism indication information is used to indicate whether the second resource pool is based on the detected resource selection mechanism, the random resource selection mechanism, or the two resource selection mechanisms. Can be used. If the resource selection mechanism indicates that the resource pool cannot use a certain resource selection mechanism, the terminal using the resource pool cannot use the resource selection mechanism for resource selection.
  • a method for V2X communication including:
  • the base station determines a correspondence between the priority of the V2X data packet and the value range of the V2X communication parameter, and sends the correspondence to the terminal, where the V2X communication parameter includes at least one of the following parameters: MCS, number of transmissions, transmission power, and occupation The number of RBs.
  • the base station sends the system information block SIB information or the radio resource control protocol RRC signaling to the terminal, where the SIB information or the RRC signaling carries the corresponding relationship.
  • a method for transmitting a data packet including:
  • the base station schedules the radio resource for the terminal, and sends the indication information to the terminal, where the indication information is used to indicate the radio resource scheduled for the terminal, where the radio resource includes the semi-persistent scheduling SPS radio resource or the dynamic scheduling radio resource, and the radio resource is used for the terminal transmission.
  • the first packet The first packet.
  • the base station receives the target parameter of the terminal, determines the size of the radio resource scheduled for the terminal according to the target parameter, and then schedules the radio resource for the terminal, and the target parameter includes at least one of the following:
  • N The size of the largest data packet among the N second data packets, the size of the smallest data packet among the N second data packets, and the average size of the N second data packets, where N is a positive integer not less than zero;
  • the N second data packets are data packets that meet the preset condition in the data packet before the terminal transmits the first data packet.
  • the base station receives the resource request message sent by the terminal, and sends a radio resource indication to the terminal according to the resource request message, where the radio resource indication is used to indicate that the base station receives the resource request message sent by the terminal,
  • the radio resource scheduled by the terminal, and the resource request message is used to request the radio resource from the base station.
  • the radio resource determined by the base station is a radio resource used for V2X communication
  • the first data packet is a V2X data packet.
  • a method for V2X communication including:
  • the base station determines the first resource pool configured for the terminal, and sends the first resource pool configuration information to the terminal.
  • the base station sends the first resource pool configuration information to the terminal, and sends an indication message for starting the first resource pool detection to the base station.
  • a V2X communication device including: a processing unit and a transceiver unit, wherein the processing unit is configured to obtain a correspondence between a priority of the V2X data packet and a value range of the V2X communication parameter, and according to the V2X data packet.
  • V2X communication parameter value range corresponding to the priority of the V2X data packet, and selecting a V2X communication parameter value from the determined V2X communication parameter value range, the V2X communication parameter including at least one of the following parameters A: modulation and coding strategy MCS, number of transmissions, transmission power, and number of occupied resource blocks RB; the transceiver unit is configured to transmit V2X data packets on the radio resources according to the selected V2X communication parameter values.
  • the processing unit acquires a corresponding relationship, which is specifically used to obtain a correspondence between the system information block SIB information sent by the base station or the RRC signaling, which is received by the transceiver unit, where the SIB information or the RRC letter is obtained.
  • the command carries the corresponding relationship; or, the pre-configured correspondence is obtained.
  • the eighth aspect provides an apparatus for transmitting a data packet, including: a receiving unit, a sending unit, and a processing unit, where the receiving unit is configured to receive indication information from the base station, where the indication information is used to indicate that the base station is a radio resource scheduled by the terminal.
  • the radio resource includes a semi-persistent scheduling SPS radio resource or a dynamic scheduling radio resource; and the sending unit is configured to transmit the first data packet on the radio resource scheduled by the base station.
  • the processing unit is configured to: before receiving the radio resource scheduled by the base station, determine, from the data packet before transmitting the first data packet, the N second data packets that meet the preset condition, and according to And determining, by the N second data packets, the target parameter, so that the base station determines the size of the radio resource scheduled by the base station according to the target parameter, where N is a positive integer not less than zero; wherein the target parameter includes at least one of the following:
  • the sending unit is further configured to send the target parameter to the base station.
  • the processing unit is further configured to: after the receiving unit receives the radio resource scheduled by the base station, before the transmitting unit transmits the first data packet, determine that the radio resource size scheduled by the base station can accommodate the first data packet.
  • the sending unit is further configured to: if the processing unit determines the wireless scheduled by the base station If the resource size cannot accommodate the first data packet, the resource request message is sent to the base station, and the resource request information is used to request the wireless resource from the base station.
  • the radio resources scheduled by the base station are radio resources for V2X communication
  • the first data packet is a V2X data packet.
  • a device for V2X communication includes: a transceiver unit and a processing unit, wherein the transceiver unit is configured to receive first resource pool configuration information from a base station, and the processing unit is configured to acquire, according to the first resource pool configuration information, a resource pool, and detecting the first resource pool, and then determining available resources in the first resource pool according to the detection result; and selecting a wireless resource for V2X communication from the available resources in the first resource pool; and finally, the transceiver unit It is also used for V2X communication on selected radio resources.
  • the transceiver unit is further configured to receive an indication message that the base station initiates the detection of the first resource pool; or the processing unit is further configured to determine that the quality of the communication link with the base station is less than a preset threshold.
  • a tenth aspect provides a base station for V2X communication, comprising: a processing unit and a transceiver unit, wherein the processing unit is configured to determine a correspondence between a priority of the V2X data packet and a value range of the V2X communication parameter, where the V2X communication parameter includes the following: At least one of the parameters: a modulation and coding strategy MCS, a number of transmissions, a transmission power, and a number of occupied resource blocks RB; the transceiver unit is configured to send a correspondence to the terminal.
  • MCS modulation and coding strategy
  • the transceiver unit sends a correspondence to the terminal, specifically, for: sending the system information block SIB information or the radio resource control protocol RRC signaling to the terminal, where the SIB information or the RRC signaling carries the corresponding relationship.
  • a base station for transmitting a data packet includes: a processing unit and a transceiver unit, wherein the processing unit is configured to schedule a radio resource for the terminal, where the radio resource includes a semi-persistent scheduling SPS radio resource or a dynamic scheduling radio resource.
  • the radio resource is used by the terminal to transmit the first data packet, and the transceiver unit is configured to send the indication information to the terminal, where the indication information is used to indicate the radio resource scheduled for the terminal.
  • the transceiver unit is further configured to: before the processing unit schedules the radio resource, receive the target parameter of the terminal, where the target parameter includes at least one of the following:
  • N The size of the largest data packet among the N second data packets, the size of the smallest data packet among the N second data packets, and the average size of the N second data packets, where N is a positive integer not less than zero;
  • the N second data packets are data packets that meet the preset condition in the data packet before the terminal transmits the first data packet;
  • the processing unit is further configured to determine, according to the target parameter, a size of the radio resource scheduled for the terminal.
  • the transceiver unit is further configured to receive a resource request message sent by the terminal, where the resource request message is used to request the radio resource from the base station, and send the radio resource indication to the terminal according to the resource request message, where the radio resource is used. And indicating, by the base station, the radio resource scheduled by the base station after receiving the resource request message sent by the terminal.
  • the radio resource determined by the base station is a radio resource used for V2X communication
  • the first data packet is a V2X data packet.
  • a base station for V2X communication including: a processing unit and a transceiver unit, wherein the processing unit is configured to determine a first resource pool configured for the terminal, and the transceiver unit is configured to send the first resource pool configuration to the terminal information.
  • the transceiver unit is further configured to send an indication message for starting the first resource pool detection to the base station.
  • a thirteenth aspect a V2X communication system is provided, comprising: any of the possible design devices provided by the seventh aspect, and the base station of any of the possible designs provided by the tenth aspect.
  • a communication system for transmitting a data packet comprising any of the possible designs of the apparatus provided by the eighth aspect, and the base station of any of the possible designs provided by the eleventh aspect.
  • V2X communication system comprising any of the possible designs of the apparatus provided by the ninth aspect, and the base station of any of the possible designs provided in the twelfth aspect.
  • FIG. 1 is a schematic diagram of a V2V communication scenario in the prior art
  • FIG. 2 is a schematic flowchart of a method for V2X communication according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a method for transmitting a data packet according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic flowchart of a method for transmitting a data packet according to Embodiment 3 of the present invention.
  • FIG. 5 is a schematic flowchart diagram of a method for V2X communication according to Embodiment 4 of the present invention.
  • FIG. 6 is a schematic structural diagram of an apparatus for V2X communication according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of hardware of a device for V2X communication according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a base station of V2X communication according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of hardware of a base station for V2X communication according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a base station system for V2X communication according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of an apparatus for transmitting a data packet according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of hardware of an apparatus for transmitting a data packet according to an embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of a base station for transmitting a data packet according to an embodiment of the present invention.
  • FIG. 14 is a schematic structural diagram of hardware of a base station for transmitting a data packet according to an embodiment of the present invention
  • FIG. 15 is a schematic structural diagram of a system for transmitting a data packet according to an embodiment of the present invention.
  • 16 is a schematic structural diagram of an apparatus for V2X communication according to an embodiment of the present invention.
  • 17 is a schematic structural diagram of hardware of a device for V2X communication according to an embodiment of the present invention.
  • FIG. 18 is a schematic structural diagram of a base station for V2X communication according to an embodiment of the present invention.
  • 19 is a schematic structural diagram of hardware of a base station for V2X communication according to an embodiment of the present invention.
  • FIG. 20 is a schematic structural diagram of a base station system for V2X communication according to an embodiment of the present invention.
  • the first embodiment of the present invention is applied to V2X communication
  • the terminal in the first embodiment of the present invention may also be referred to as a UE (User Equipment), an MS (Mobile Station), a mobile terminal (Mobile Terminal), and the like.
  • the terminal can be a mobile phone, a tablet, a PDA (Personal Digital Assistant), a POS (Point of Sales), a car computer, a set top box, and the like.
  • the terminal in the first embodiment of the present invention transmits the V2X data packet on the radio resource based on the correspondence between the priority of the V2X data packet and the value range of the V2X communication parameter. Therefore, when the transmission resource is tight, the terminal can configure the correspondence. To improve the transmission reliability of lower priority packets to a certain extent.
  • a method for V2X communication according to Embodiment 1 of the present invention includes:
  • Step 200 The terminal acquires a correspondence between a priority of the V2X data packet and a value range of the V2X communication parameter, where the V2X communication parameter includes at least one of the following parameters: MCS (Modulation and Coding Scheme), number of transmissions The transmission power and the number of occupied RBs (Resource Blocks).
  • MCS Modulation and Coding Scheme
  • the correspondence between the priority and the value range of the V2X communication parameter may be pre-configured in the terminal.
  • the base station may send the correspondence between the priority and the V2X communication parameter to the terminal, and the terminal receives the priority sent by the base station and the value of the V2X communication parameter.
  • the correspondence between the ranges is used to obtain the correspondence between the priority and the value range of the V2X communication parameters.
  • the correspondence between the priority and the V2X communication parameter value range is preset in the base station, the correspondence between the priority determined by the base station and the V2X communication parameter is the priority and V2X pre-configured in the base station.
  • the base station determines the priority and the value of the V2X communication parameter according to an algorithm pre-configured in the base station.
  • the base station may send the SIB information or the RRC signaling to the terminal, and carry the correspondence between the priority and the value range of the V2X communication parameter through the SIB information or the RRC signaling, and the terminal sends the information through the receiving base station.
  • the SIB information or the RRC signaling is used to obtain the correspondence between the priority and the V2X communication parameter value range.
  • Step 201 The terminal determines a value range of the V2X communication parameter corresponding to the priority of the V2X data packet according to the priority and the corresponding relationship of the V2X data packet.
  • Step 202 The terminal selects a V2X communication parameter from the determined value range of the V2X communication parameter. Value.
  • Step 203 The terminal transmits the V2X data packet on the radio resource according to the selected V2X communication parameter value.
  • different priority levels correspond to different V2X communication parameter value ranges, wherein the V2X communication parameter value ranges corresponding to different priorities may overlap, and the V2X communication parameter value range may be a value, Can be an interval.
  • the V2X communication parameter value range may be a value, Can be an interval.
  • the three priority levels are the first priority, the second priority, and the third priority, respectively, and the first priority V2X.
  • the priority of the data packet is the highest, and the priority of the V2X data packet of the third priority is the lowest.
  • the V2X communication parameter includes the MCS, the number of transmissions, and the number of RBs, the MCS of the first priority ranges from 3 to 7.
  • the number of transmissions is 5 to 8, and the number of RBs is 10 to 16.
  • the MCS corresponding to the second priority ranges from 1 to 3, the number of transmissions is 2 to 5, and the number of RBs is 4. ⁇ 10, the MCS value range corresponding to the third priority is 0 to 1, the number of transmissions is 1, and the number of occupied RBs is 2.
  • the correspondence between the priority of the V2X data packet and the value range of the V2X communication parameter is as shown in Table 1.
  • the terminal determines that the V2X data packet that needs to be transmitted is the first priority data packet, the selected MCS is 5, and the number of transmissions is 4. Since the size of the currently transmitted V2X data packet is fixed, the V2X data packet needs to be transmitted.
  • the number of occupied RBs can be determined based on the value of the selected MCS and the number of transmission times, and the determined value of the number of occupied RBs is consistent with the constraint of the number of RBs in the V2X parameter.
  • the reliability of the low priority V2X data packet is ensured.
  • the V2X communication parameter value range corresponding to the low priority level can be configured so that the low priority V2X data packet occupies less transmission resources, thereby improving the low priority V2X to a certain extent when the transmission resource is tight.
  • the reliability of the data packet, and in order to ensure the accuracy of the data transmission of the high-priority V2X data packet, the V2X communication parameter value range corresponding to the high priority level can be configured to allocate more transmissions for the high priority data packet. Resources, thus improving the accuracy of high-priority V2X packets to a certain extent.
  • the number of transmissions may be the number of transmissions of the V2X data packet in the MAC (Media Access Control) layer, where the V2X data packet is a PDU (Packet Data Unit) in the MAC layer.
  • the format of the unit) exists; the number of transmissions can also be the number of times the side link process is transmitted.
  • the side link process is used to transmit V2X data on the side link; the number of transmissions may also be the number of HARQ process transmissions, wherein it should be understood that V2X data packets may be retransmitted based on the HARQ mechanism in the implementation of the present invention.
  • the second embodiment of the present invention is applied to the wireless communication.
  • the terminal in the second embodiment of the present invention may also be referred to as a UE, an MS, a mobile terminal, etc.
  • the terminal may be a mobile phone, a tablet computer, a PDA, a POS, or a mobile phone.
  • the terminal transmits the data packet on the SPS radio resource or the dynamic radio resource scheduled by the base station, thereby improving the efficiency of the terminal transmitting the data packet.
  • the effective gain of the present invention is that the terminal reports the transmission history packet related information, so that the base station can perform radio resource scheduling according to the information, which increases the accuracy and efficiency of the scheduling;
  • the wireless communication As the V2X communication. When it is other types of wireless communication, it is similar to the V2X communication, and will not be described here.
  • a method for transmitting a data packet according to Embodiment 2 of the present invention includes:
  • Step 300 The base station schedules a radio resource for the terminal, where the radio resource includes an SPS radio resource or a dynamically scheduled radio resource, where the radio resource is used by the terminal to transmit the first data packet.
  • the base station pre-arranges radio resources for the K data packets to be transmitted in the time period at the beginning time of the time period, if the time period is If a data packet needs to be transmitted at a certain moment, it is directly uploaded by the radio resource scheduled by the base station.
  • the data packet is transmitted, wherein the base station is a SPS radio resource, which is a radio resource scheduled by the terminal to transmit data in a certain period of time.
  • the dynamic scheduling of the radio resource is that when the terminal needs to transmit the data packet, the base station schedules the radio resource for the data packet that the terminal needs to transmit.
  • the terminal determines N second data packets that meet the preset condition from the data packet before the first data packet is transmitted. And determining, according to the N second data packets, the target parameter, and sending the target parameter to the base station, so that the base station determines, according to the target parameter, a size of the radio resource scheduled by the base station, where N is a positive integer not less than zero; the target parameter includes the following: At least one item:
  • the size of the largest data packet among the N second data packets The size of the largest data packet among the N second data packets, the size of the smallest data packet among the N second data packets, and the average size of the N second data packets.
  • the preset condition may be a packet group closest to the first data packet before the first data packet is transmitted, where the data packet group includes M data packets, where M is A positive integer greater than 0, for example, the first data packet transmitted is the 7th data packet transmitted by the terminal. If the value of M is 2, the data packet group includes the 5th data packet and the 6th data transmitted by the terminal.
  • the preset condition may also be a data packet within a preset time period T before the first data transmitted, for example, the preset time period is from 15:00 to 15:10, such as a data packet transmitted during the time period. Including the 6th data packet and the 7th data packet, the 6th data packet and the 7th data packet are data packets satisfying the preset condition. If the data packet transmitted during the time period is 0, the target is The parameter is set to 0.
  • the value of the M or T may be pre-configured in the terminal, or the base station sends the SIB information or the RRC signaling to the terminal, and carries the value of the M or T through the SIB information or the RRC signaling, and the terminal receives the SIB information sent by the base station or RRC signaling to obtain the value of M or T.
  • Step 301 The base station sends indication information to the terminal, where the indication information is used to indicate the radio resource.
  • Step 302 The terminal receives the indication information sent by the base station.
  • the terminal determines whether the radio resource size scheduled by the base station can accommodate the first data packet, and if the base station size is determined to be capable of accommodating the first data. Packet, the first transmission in the radio resources scheduled by the base station a data packet; if it is determined that the base station size cannot accommodate the first data packet, sending a resource request message to the base station, where the resource request information is used to request the wireless resource from the base station. If the terminal configures the restriction of sending the resource request, the terminal cancels the limitation of sending the resource request, and the limitation of sending the resource request includes SR-Mask.
  • the resource request message may include a scheduling request message or user assistance information.
  • the scheduling request message is that the terminal sends a scheduling request to the base station, indicating that the terminal side has data waiting to be sent, but the corresponding resource is lacking.
  • the base station will schedule a small amount of resources for the user to report the amount of data in the buffer area.
  • the base station will allocate more resources for data transmission; scheduling request information.
  • the information can be transmitted on the PUCCH or the PRACH.
  • the user assistance information refers to the user reporting information related to the user to the base station, such as the amount of data, the arrival period of the data, the offset of the data packet arrival time, and the offset of the system frame 0.
  • the user assistance information received is its scheduling resource.
  • Step 303 The terminal transmits the first data packet on the radio resource indicated by the indication information.
  • the second embodiment of the present invention supports V2X communication.
  • the radio resource scheduled by the base station is a radio resource used for V2X communication
  • the first data packet is a V2X data packet.
  • a method for transmitting a data packet according to Embodiment 3 of the present invention includes:
  • Step 400 When the terminal determines that the first data packet needs to be transmitted, determining, from the data packet before transmitting the first data packet, N second data packets that meet the preset condition, where N is a positive integer not less than zero.
  • the preset condition may be a packet group closest to the first data packet before the first data packet is transmitted, where the data packet group includes M data packets, and M is a positive integer greater than 0, for example, The first data packet transmitted is the seventh data packet transmitted by the terminal. If the value of M is 3, the data packet group includes the fourth data packet, the fifth data packet, and the sixth data packet transmitted by the terminal.
  • the preset condition may also be a data packet within a preset time period T before the first data transmitted, for example, the preset time period is from 14:00 to 14:20, and the data packet transmitted during the time period includes the first 4 data packets, 5th data packet, then the 4th data packet and the 5th data packet are data packets satisfying the preset condition. If the data packet transmitted during the time period is 0, the target parameter is set. Is 0.
  • the value of M or T may be pre-configured in the terminal, or the base station sends the SIB to the terminal.
  • the information or RRC signaling carries the value of M or T through the SIB information or the RRC signaling, and the terminal acquires the value of the M or T by receiving the SIB information or the RRC signaling sent by the base station.
  • Step 401 The terminal determines, according to the N second data packets, the target parameter, where the target parameter includes at least one of: a size of a largest data packet among the N second data packets, and a minimum data packet of the N second data packets. Size and average size of N second packets.
  • Step 402 The terminal sends the target parameter to the base station.
  • Step 403 The base station receives the target parameter, and schedules a radio resource for the terminal according to the target parameter, where the radio resource includes an SPS radio resource or a dynamically scheduled radio resource, where the radio resource is used by the terminal to transmit the first data packet.
  • the radio resource includes an SPS radio resource or a dynamically scheduled radio resource, where the radio resource is used by the terminal to transmit the first data packet.
  • Step 404 The base station sends indication information to the terminal, where the indication information is used to indicate the radio resource.
  • Step 405 The terminal receives the indication information sent by the base station.
  • Step 406 The terminal determines whether the radio resource indicated by the indication information can accommodate the first data packet. If yes, step 407 is performed, otherwise step 408 is performed.
  • Step 407 The terminal transmits the first data packet on the radio resource indicated by the indication information.
  • Step 408 The terminal sends a resource request message to the base station, where the resource request information is used to request the radio resource from the base station.
  • the resource request message may include a scheduling request message or user assistance information.
  • the scheduling request message is that the terminal sends a scheduling request to the base station, indicating that the terminal side has data waiting to be sent, but the corresponding resource is lacking.
  • the base station will schedule a small amount of resources for the user to report the amount of data in the buffer area.
  • the base station will allocate more resources for data transmission; scheduling request information.
  • the information can be transmitted on the PUCCH or the PRACH.
  • the user assistance information refers to the user reporting information related to the user to the base station, such as the amount of data, the arrival period of the data, the offset of the data packet arrival time, and the offset of the system frame 0.
  • the user assistance information received is its scheduling resource.
  • Step 409 The base station receives the resource request message sent by the terminal, and sends a radio resource indication to the terminal according to the resource request message, where the radio resource indication is used to indicate that the base station receives the resource request message sent by the terminal, and then schedules the terminal for scheduling.
  • Wireless resources Wireless resources.
  • the first data packet and the second data packet are V2X data packets
  • the wireless communication resource scheduled by the base station for the terminal is a wireless resource used for V2X communication.
  • the fourth embodiment of the present invention is applied to V2X communication.
  • the terminal in the first embodiment of the present invention may also be referred to as a UE, an MS, a mobile terminal, etc.
  • the terminal may be a mobile phone, a tablet computer, a PDA, a POS, or a car.
  • the V2X communication can be performed by acquiring the radio resources in the first resource pool when the terminal does not obtain the radio resources scheduled by the base station and the radio resources in the common resource pool have not yet been acquired, thereby improving the continuity of the V2X communication.
  • the method for V2X communication in the fourth embodiment of the present invention includes:
  • Step 500 The base station determines a first resource pool configured for the terminal.
  • Step 501 The base station sends the first resource pool configuration information to the terminal.
  • Step 502 The terminal receives the first resource pool configuration information from the base station.
  • Step 503 The terminal acquires the first resource pool according to the first resource pool configuration information.
  • Step 504 The terminal detects the first resource pool, and determines available resources in the first resource pool according to the detection result.
  • the base station sends an indication message for initiating the detection of the first resource pool to the terminal, where the terminal receives the indication message that the base station starts the detection of the first resource pool, and detects the first resource pool; or the terminal determines the quality of the communication link with the base station. After the preset threshold is exceeded, the first resource pool is detected.
  • the base station may send an indication message for starting the detection of the first resource pool to the terminal.
  • Step 505 The terminal selects a radio resource for V2X communication from available resources in the first resource pool.
  • Step 506 The terminal performs V2X communication on the selected radio resource.
  • the terminal switches to the available radio resources in the second resource pool for V2X communication.
  • the wireless resource in the second resource pool is larger than the wireless resource in the first resource pool.
  • the communication link between the terminal and the base station is usually When the quality is high, the base station can schedule radio resources for the terminal, and the terminal can perform V2X communication through the radio resources scheduled by the base station.
  • the quality of the communication link between the terminal and the base station deteriorates, when the quality of the communication link is poor to a certain extent, The base station cannot detect the radio resource for the terminal, and the terminal needs to detect the common resource pool configured by the base station for the terminal, and obtain the available radio resource from the common resource pool for V2X communication.
  • the base station cannot schedule the radio resource for the terminal, and the terminal needs to detect the base station as the terminal.
  • the configured common resource pool needs a period of time.
  • the terminal needs to perform V2X communication, the V2X communication cannot be performed because there is no radio resource for communication, and the quality of the communication link between the terminal and the base station changes in the embodiment of the present invention. Poor, but the base station can also allocate radio resources to the terminal.
  • the base station can configure the first resource pool for the terminal, and the terminal acquires the radio resource from the first resource pool.
  • the terminal cannot be the terminal.
  • the terminal can obtain the wireless from the first resource pool.
  • V2X communication source thereby improving the communication continuity V2X, and reduces the delay V2X communication service to a certain extent.
  • the base station needs to configure the first resource pool for the terminal before the communication link between the base station and the terminal is completely disconnected, and the terminal obtains the available resource from the first resource pool before the communication link between the base station and the terminal is completely disconnected.
  • Wireless resources Wireless resources.
  • the radio resource in the first resource pool configured in the normal situation is small, the quality of the communication link with the base station is deteriorated until the base station cannot schedule the radio resource for the terminal, and the terminal acquires the radio resource of the first resource pool.
  • the V2X communication is performed on the available radio resources in the second resource pool.
  • the radio resource in the second resource pool is larger than the radio resource in the first resource pool, where the second resource pool is equivalent to the common resource pool in the prior art. That is to say, the fourth embodiment of the present invention can pass the wireless resource mode of the original terminal without acquiring the wireless resource mode of the original terminal, and can still pass the wireless resource in the public resource pool.
  • the acquired wireless resources in the first resource pool perform V2X communication, thereby improving the continuity of the V2X communication.
  • the first resource pool may also be a public resource pool.
  • the base station configures the first resource pool for the terminal, and then sends the SIB information or the RRC signaling to the terminal, where the SIB information or the RRC signaling carries the first resource.
  • the pool configuration information the terminal acquires the first resource pool according to the SIB information sent by the base station or the first resource pool configuration information carried in the RRC signaling.
  • the manner in which the terminal acquires the second resource pool is similar to the manner in which the terminal acquires the first resource pool, and is not described here.
  • the service information of the resource pool is carried in the first resource pool configuration information and/or the second resource pool configuration information.
  • the service indication information is used to indicate whether the first resource pool can be used by a certain type of service.
  • the second resource pool configuration information carries the service indication information of the resource pool
  • the service indication information is used to indicate whether the second resource pool can be used by a certain type. Used by the business. If the service indication information indicates that the resource pool cannot be used by a certain type of service, the type of service cannot communicate using the resources in the resource pool.
  • the detection-based resource selection mechanism or the random resource selection mechanism may be adopted in the V2X communication, wherein the detection-based resource selection mechanism refers to that the terminal can detect the available resources in the resource pool after detecting the resource pool for a period of time, and then select from the available resources.
  • the resource communicates; the random resource selection mechanism only means that the terminal does not detect the resource pool, but randomly selects resources from the resource pool and uses the selected resources for communication.
  • the resource selection mechanism indication information of the resource pool is carried in the first resource pool configuration information and/or the second resource pool configuration information.
  • the resource selection mechanism indication information is used to indicate whether the first resource pool adopts a detection based resource selection mechanism or a random resource selection mechanism, or whether two resource selection mechanisms can be adopted.
  • the resource selection mechanism indication information is used to indicate whether the second resource pool is based on the detected resource selection mechanism, the random resource selection mechanism, or the two resource selection mechanisms. Can be used. If the resource selection mechanism indicates that the resource pool cannot use a certain resource selection mechanism, the terminal using the resource pool cannot use the resource selection mechanism for resource selection.
  • an embodiment of the present invention further provides a device, a base station, and a system for V2X communication. Since the device, the base station, and the system corresponding to the V2X communication are the V2X communication method according to the embodiment of the present invention, the present invention
  • the device, the base station and the system of the embodiment V2X communication reference may be made to the implementation of the method, and the repeated description is omitted.
  • the V2X communication device of the embodiment of the present invention includes: a processing unit 600 and a transceiver unit 610, wherein the processing unit 600 is configured to obtain a correspondence between a priority of a V2X data packet and a value range of a V2X communication parameter.
  • the V2X communication parameter And determining the V2X communication parameter value range corresponding to the priority of the V2X data packet according to the priority and the corresponding relationship of the V2X data packet, and selecting a V2X communication parameter value from the determined V2X communication parameter value range, the V2X communication parameter And including at least one of the following parameters: a modulation and coding policy MCS, a number of transmissions, a transmission power, and a number of occupied resource blocks RB; the transceiver unit 610 is configured to transmit V2X data on the radio resource according to the selected V2X communication parameter value. package.
  • the processing unit 600 obtains a corresponding relationship, where the corresponding relationship is specifically used to obtain a correspondence between the system information block SIB information sent by the base station or the RRC signaling received by the base transceiver unit 610, where the SIB information or the RRC signaling is used. Carry the corresponding relationship; or, obtain a pre-configured correspondence.
  • the processing unit 600 may be implemented by a processor, and the transceiver unit 610 may be implemented by a transceiver.
  • the V2X communication device 700 can include a processor 710, a transceiver 720, and a memory 730.
  • the memory 730 can be used to store the program/code pre-installed by the device 700 at the factory, or to store code and the like for the execution of the processor 710.
  • the processor 710 can be a general-purpose CPU (Central Processing Unit), a microprocessor, an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits for performing related operations.
  • the technical solution provided by the embodiment of the present invention is implemented.
  • the device 700 shown in FIG. 7 only shows the processor 710, the transceiver 720, and the memory 730, in a specific implementation process, those skilled in the art should understand that the device 700 also includes a normal operation. Other devices that are required. At the same time, those skilled in the art will appreciate that the device 700 may also include hardware devices that implement other additional functions, depending on the particular needs. Moreover, those skilled in the art will appreciate that the device may also include only the devices or modules necessary to implement the embodiments of the present invention, and do not necessarily include all of the devices shown in FIG.
  • the program can be implemented by a computer program to instruct related hardware, and the above program can be stored in a computer readable storage medium, and when executed, the program can include the flow of the embodiment of each method as described above.
  • the storage medium may be a magnetic disk, an optical disk, a ROM (Read-Only Memory), or a RAM (Random Access Memory).
  • the base station of the V2X communication in the embodiment of the present invention includes: a processing unit 800 and a transceiver unit 810, wherein the processing unit 800 is configured to determine a correspondence between a priority of a V2X data packet and a value range of a V2X communication parameter,
  • the V2X communication parameter includes at least one of the following parameters: a modulation and coding policy MCS, a number of transmissions, a transmission power, and a number of occupied resource blocks RB; and the transceiver unit 810 is configured to send a correspondence to the terminal.
  • the transceiver unit 810 sends a correspondence to the terminal, where the method is specifically configured to: send the system information block SIB information or the RRC signaling to the terminal, where the SIB information or the RRC signaling carries the corresponding relationship.
  • the processing unit 800 may be implemented by a processor, and the transceiver unit 810 may be implemented by a transceiver.
  • the base station 900 for V2X communication can include a processor 910, a transceiver 920, and a memory 930.
  • the memory 930 can be used to store the program/code pre-installed by the base station 900 at the factory, or to store the code and the like for the execution of the processor 910.
  • the processor 910 may be a general-purpose CPU, a microprocessor, an ASIC, or one or more integrated circuits for performing related operations to implement the technical solutions provided by the embodiments of the present invention.
  • the base station 900 shown in FIG. 9 only shows the processor 910, the transceiver 920, and the memory 930, in a specific implementation process, those skilled in the art should understand that the base station 900 also includes a normal operation. Other devices that are required. At the same time, those skilled in the art will appreciate that the base station 900 may also include hardware devices that implement other additional functions, depending on the particular needs. Moreover, those skilled in the art will appreciate that the base station may also only include the devices or modules necessary to implement the embodiments of the present invention, and do not necessarily include all of the devices shown in FIG.
  • the above storage medium may be a magnetic disk, an optical disk, a ROM, a RAM, or the like.
  • the V2X communication system of the embodiment of the present invention includes: any device 1000 shown in FIG. 6 and an embodiment of the present invention, such as any of the base stations 1010 shown in FIG.
  • an embodiment of the present invention provides a device, a base station, and a system for transmitting a data packet.
  • the device, the base station, and the system corresponding to the data packet transmit data according to the second embodiment and the third embodiment of the present invention.
  • the method of the packet therefore, the implementation of the device, the base station and the system for transmitting the data packet in the embodiment of the present invention can be referred to the implementation of the method, and the repeated description is not repeated.
  • an apparatus for transmitting a data packet includes: a receiving unit 1100, a sending unit 1120, and a processing unit 1110, where the receiving unit 1100 is configured to receive indication information from a base station, where the indication information is used to indicate a base station.
  • the radio resource includes a semi-persistent scheduling SPS radio resource or a dynamic scheduling radio resource; the sending unit 1120 is configured to transmit the first data packet on the radio resource scheduled by the base station.
  • the processing unit 1110 is configured to determine, before the receiving unit 1100 receives the radio resource scheduled by the base station, N second data packets that meet the preset condition from the data packet before the first data packet is transmitted, and according to the N And determining, by the second data packet, the target parameter, so that the base station determines the size of the radio resource scheduled by the base station according to the target parameter, where N is a positive integer not less than zero; wherein the target parameter includes at least one of the following:
  • the sending unit 1120 is further configured to send a target parameter to the base station.
  • the processing unit 1110 is further configured to: after the receiving unit 1100 receives the radio resource scheduled by the base station, before the sending unit 1120 transmits the first data packet, determine that the radio resource size scheduled by the base station can accommodate the first data packet.
  • the sending unit 1120 is further configured to: if the processing unit 1110 determines that the radio resource size scheduled by the base station cannot accommodate the first data packet, send a resource request message to the base station, where the resource request information is used to request the radio resource from the base station.
  • the radio resource scheduled by the base station is a radio resource used for V2X communication, and the first data packet is a V2X number. According to the package.
  • the processing unit 1110 may be implemented by a processor, and the receiving unit 1100 and the sending unit 1120 may be implemented by a transceiver.
  • device 1200 that transmits data packets can include a processor 1210, a transceiver 1220, and a memory 1230.
  • the memory 1230 can be used to store the program/code pre-installed by the device 1200, or store the code for the processor 1210 to execute.
  • the processor 1210 may be a general-purpose CPU, a microprocessor, an ASIC, or one or more integrated circuits for performing related operations to implement the technical solutions provided by the embodiments of the present invention.
  • the device 1200 shown in FIG. 12 only shows the processor 1210, the transceiver 1220, and the memory 1230, in a specific implementation process, those skilled in the art will appreciate that the device 1200 also includes a normal operation. Other devices that are required. At the same time, those skilled in the art will appreciate that the device 1200 may also include hardware devices that implement other additional functions, depending on the particular needs. Moreover, those skilled in the art will appreciate that the device may also only include the devices or modules necessary to implement the embodiments of the present invention, and do not necessarily include all of the devices shown in FIG.
  • the above storage medium may be a magnetic disk, an optical disk, a ROM, a RAM, or the like.
  • a base station for transmitting a data packet includes: a processing unit 1300 and a transceiver unit 1310, wherein the processing unit 1300 is configured to schedule a radio resource for a terminal, where the radio resource includes a semi-persistent scheduling SPS radio resource or dynamic The radio resource is used for the terminal to transmit the first data packet, and the transceiver unit 1310 is configured to send the indication information to the terminal, where the indication information is used to indicate the radio resource scheduled for the terminal.
  • the transceiver unit 1310 is further configured to: before the processing unit 1300 schedules the radio resource, receive the target parameter of the terminal, where the target parameter includes at least one of the following:
  • the N second data packets are data packets that meet the preset condition in the data packet before the terminal transmits the first data packet;
  • the processing unit 1300 is further configured to determine, according to the target parameter, a size of the radio resource scheduled by the terminal.
  • the transceiver unit 1310 is further configured to receive a resource request message sent by the terminal, where the resource request message is used to request the radio resource from the base station, and send a radio resource indication to the terminal according to the resource request message, where the radio resource indication is used for Instructing the base station to receive the radio resource scheduled by the terminal after receiving the resource request message sent by the terminal.
  • the method includes: the radio resource determined by the base station is a radio resource used for V2X communication, and the first data packet is a V2X data packet.
  • the processing unit 1300 may be implemented by a processor, and the transceiver unit 1310 may be implemented by a transceiver.
  • base station 1400 that transmits data packets can include processor 1410, transceiver 1420, and memory 1430.
  • the memory 1430 may be used to store a program/code pre-installed at the time of leaving the base station 1400, or may store a code or the like for execution of the processor 1410.
  • the processor 1410 may be a general-purpose CPU, a microprocessor, an ASIC, or one or more integrated circuits for performing related operations to implement the technical solutions provided by the embodiments of the present invention.
  • the base station 1400 shown in FIG. 14 only shows the processor 1410, the transceiver 1420, and the memory 1430, in a specific implementation process, those skilled in the art will appreciate that the base station 1400 also includes a normal operation. Other devices that are required. In the meantime, those skilled in the art will appreciate that the base station 1400 may also include hardware devices that implement other additional functions, depending on the particular needs. Moreover, those skilled in the art will appreciate that the base station may also only include the devices or modules necessary to implement the embodiments of the present invention, and does not necessarily include all of the devices shown in FIG.
  • the above storage medium may be a magnetic disk, an optical disk, a ROM, a RAM, or the like.
  • a system for transmitting a data packet includes: any apparatus 1500 shown in FIG. 11 and an embodiment of the present invention, such as any of the base stations 1510 shown in FIG.
  • an apparatus, a base station, and a system for V2X communication are provided in the embodiment of the present invention.
  • the method, the base station, and the system corresponding to the V2X communication are the method for the V2X communication in the fourth embodiment of the present invention, so the present invention
  • the base station and the system of the embodiment V2X communication reference may be made to the implementation of the method, and the repeated description is omitted.
  • the V2X communication device of the embodiment of the present invention includes: a transceiver unit 1610 and a processing unit 1600, wherein the transceiver unit 1610 is configured to receive first resource pool configuration information from a base station, and the processing unit 1600 is configured to use the first resource.
  • the pool configuration information is obtained, the first resource pool is obtained, and the first resource pool is detected, and then the available resources in the first resource pool are determined according to the detection result; and the wireless for V2X communication is selected from the available resources in the first resource pool.
  • the transceiver unit 1610 is further configured to perform V2X communication on the selected radio resource.
  • the transceiver unit 1610 is further configured to receive an indication message that the base station initiates the detection of the first resource pool; or the processing unit 1600 is further configured to determine that the quality of the communication link with the base station is less than a preset threshold.
  • the processing unit 1600 may be implemented by a processor, and the transceiver unit 1610 may be implemented by a transceiver.
  • the V2X communication device 1700 can include a processor 1710, a transceiver 1720, and a memory 1730.
  • the memory 1730 can be used to store the program/code pre-installed by the device 1700 at the factory, or to store the code and the like for the execution of the processor 1710.
  • the processor 1710 may be a general-purpose CPU, a microprocessor, an ASIC, or one or more integrated circuits for performing related operations to implement the technical solutions provided by the embodiments of the present invention.
  • the device 1700 shown in FIG. 17 only shows the processor 1710, the transceiver 1720, and the memory 1730, in a specific implementation process, those skilled in the art will appreciate that the device 1700 also includes a normal operation. Other devices that are required. At the same time, those skilled in the art will appreciate that the device 1700 can also include hardware devices that implement other additional functions, depending on the particular needs. Moreover, those skilled in the art will appreciate that the device may also include only the devices or modules necessary to implement the embodiments of the present invention, and do not necessarily include all of the devices shown in FIG.
  • the above storage medium may be a magnetic disk, an optical disk, a ROM, a RAM, or the like.
  • the base station of the V2X communication includes: a processing unit 1800 and a transceiver unit 1810, wherein the processing unit 1800 is configured to determine a first resource pool configured for the terminal, and the transceiver unit 1810 is configured to send the terminal to the terminal.
  • the first resource pool configuration information is configured to determine a first resource pool configured for the terminal.
  • the transceiver unit 1810 is further configured to send, to the base station, an indication message that initiates detection of the first resource pool.
  • the processing unit 1800 may be implemented by a processor, and the transceiver unit 1810 may be implemented by a transceiver.
  • the base station 1900 for V2X communication can include a processor 1910, a transceiver 1920, and a memory 1930.
  • the memory 1930 can be used to store a program/code pre-installed at the time of shipment of the base station 1900, and can also store codes and the like for execution of the processor 1910.
  • the processor 1910 may be a general-purpose CPU, a microprocessor, an ASIC, or one or more integrated circuits for performing related operations to implement the technical solutions provided by the embodiments of the present invention.
  • the base station 1900 shown in FIG. 19 only shows the processor 1910, the transceiver 1920, and the memory 1930, in a specific implementation process, those skilled in the art will appreciate that the base station 1900 also includes a normal operation. Other devices that are required. At the same time, those skilled in the art will appreciate that the base station 1900 may also include hardware devices that implement other additional functions, depending on the particular needs. Moreover, those skilled in the art will appreciate that the base station may also include only the devices or modules necessary to implement the embodiments of the present invention, and do not necessarily include all of the devices shown in FIG.
  • the above storage medium may be a magnetic disk, an optical disk, a ROM, a RAM, or the like.
  • the V2X communication system includes: an apparatus 2000 according to the present invention, for example, shown in FIG. 16, and a base station 2010 shown in FIG. 18, which is implemented by the present invention.
  • the terminal obtains the correspondence between the priority of the V2X data packet and the value range of the V2X communication parameter, and determines the priority correspondence of the V2X data packet according to the priority and the corresponding relationship of the V2X data packet.
  • the V2X communication parameter takes a value range, and then selects a V2X communication parameter value from the determined V2X communication parameter value range; finally, transmits the V2X data packet on the radio resource according to the selected V2X communication parameter value.
  • the V2X communication parameter includes at least one of the following parameters: MCS, number of transmissions, transmission power, and number of occupied RBs.
  • the technical solution transmits the V2X data packet on the radio resource based on the correspondence between the priority of the V2X data packet and the value range of the V2X communication parameter. Therefore, when the transmission resource is tight, the correspondence relationship can be configured. To improve the transmission reliability of lower priority packets.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can also be stored in a bootable computer or other programmable data processing device.
  • a computer readable memory that operates in a particular manner, causing instructions stored in the computer readable memory to produce an article of manufacture comprising an instruction device implemented in one or more flows and/or block diagrams of the flowchart The function specified in the box or in multiple boxes.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Abstract

一种V2X通信的方法、设备及系统，涉及无线通信技术领域，用以解决决目前V2X通信过程中只能保证优先级较高的数据包传输可靠性的问题。其中，该方法包括：终端获取V2X数据包的优先级与V2X通信参数取值范围的对应关系，并根据V2X数据包的优先级以及对应关系，确定V2X数据包的V2X通信参数取值范围，然后选择一个V2X通信参数值；最后，根据选择的V2X通信参数值，传输V2X数据包。这种技术方案由于终端基于V2X数据包的优先级与V2X通信参数取值范围的对应关系，在无线资源上传输V2X数据包，因此，当传输资源紧张时，能够通过配置该对应关系，在一定程度上提高优先级较低的数据包的传输可靠性。

Description

一种V2X通信的方法、设备及系统 技术领域
本发明涉及无线通信技术领域，特别涉及一种V2X通信的方法、设备及系统。
背景技术
全球每年发生大量的交通事故，造成大量的人员伤亡和财产损失。其中，发生交通事故的主要原因在于车辆之间缺乏可靠的信息交互机制。车联网系统旨在通过车辆与X(Vehicle-to-X，V2X)之间的通信来达到提高道路安全，提高交通效率和为用户提供丰富的流媒体服务的目的。具体的，V2X包括V2V(Vehicle to Vehicle，车辆与车辆)、V2I之间(Vehicle-to-Infrastructure，车辆与基础设施)以及V2P(Vehicle-to-Pedestrian，车辆与行人手持终端)。
以V2V通信为例，如图1所示，由于车辆A与车辆B之间通信的V2V数据包包括不同的业务类型，例如CAM(Cooperative Awareness Message，信息传输协议)类型、DENM(Decentralized Environmental Notification Message，分散环境通知信息)类型、BSM(Basic Safety Message，基础安全信息)类型等，具体的，CAM类型的V2X数据包中包含当前车辆的位置、速度、朝向等车辆的基本行驶情况信息，DENM类型的V2X数据包中包含的是当前车辆触发的一些紧急状况信息，例如紧急刹车等。
然而，由于车辆的增多，车联网系统中传输资源的有限性，为了提高道路的安全性，现有技术中，由于不同业务类型的数据包中包含的信息的紧急状况是不同的，因此预先在车联网系统(如车辆)中配置业务类型与优先级的对应关系，当传输资源紧张时，车辆在获取到资源后，先传输优先级高的V2X数据包，例如，CAM类型的V2X数据包的优先级低于DENM类型的V2X数据包，车辆A若需要向车辆B发送CAM类型的V2X数据包和DENM类型的V2X数据包，则车辆在获取到资源仅能传输一个数据包时，先传输 DENM类型的V2X数据包。
然而，现有技术中的技术方案只是保证了优先级较高的V2X数据包传输的可靠性，却忽略了优先级低的V2X数据包的传输可靠性。
发明内容
本发明提供一种V2X通信的方法、设备及系统，用以解决目前V2X通信过程中只能保证优先级较高的数据包传输可靠性的问题。
第一方面，提供了一种V2X通信的方法，包括：
终端获取V2X数据包的优先级与V2X通信参数取值范围的对应关系，并根据V2X数据包的优先级以及对应关系，确定V2X数据包的优先级对应的V2X通信参数取值范围，然后，从确定的V2X通信参数取值范围中选择一个V2X通信参数值；最后，根据选择的V2X通信参数值，在无线资源上传输V2X数据包。其中，V2X通信参数包括以下参数中的至少一个：MCS(Modulation and Coding Scheme，调制与编码策略)、传输次数、传输功率和所占用的RB(Resource Block，资源块)的个数。
需要说明的是，不同的优先级对应不同的V2X通信参数取值范围，其中，不同的优先级对应的V2X通信参数取值范围可以存在重叠，而且V2X通信参数取值范围可以为一个数值，也可以为一个区间。
在一种可能的设计中，优先级与V2X通信参数取值范围的对应关系可以预先配置在终端中，当终端需要传输V2X数据包时，则事先根据需要传输的V2X数据包的优先级，确定V2X通信参数取值范围。
此外，在一种可能的设计中，还可以通过基站在确定V2X数据包的优先级与V2X通信参数的对应关系后，向终端发送优先级与V2X通信参数的对应关系，终端通过接收基站发送的优先级与V2X通信参数取值范围的对应关系来获取优先级与V2X通信参数取值范围的对应关系。
应理解，可选的，当优先级与V2X通信参数取值范围的对应关系预先设置在基站中时，基站确定的优先级与V2X通信参数的对应关系为预先配置在 基站中的优先级与V2X通信参数的对应关系；或者，当预先在基站中配置优先级与V2X通信参数取值范围的对应关系的生成算法时，基站根据预先配置在基站中的算法，确定优先级与V2X通信参数取值范围的对应关系。
在一种可能的设计中，基站向终端发送SIB(System Information Block，系统信息块)信息或RRC(Radio Resource Control，无线资源控制协议)信令，通过SIB信息或RRC信令携带优先级与V2X通信参数取值范围的对应关系，终端通过接收基站发送的SIB(System Information Block，系统信息块)信息或RRC(Radio Resource Control，无线资源控制协议)信令来获取优先级与V2X通信参数取值范围的对应关系。
较佳的，当传输资源紧张时，为保证低优先级的V2X数据包的可靠性传输，可以通过配置低优先级对应的V2X通信参数取值范围，使得低优先级的V2X数据包占用的传输资源较少，从而在传输资源紧张时，在一定程度上提高了低优先级的V2X数据包的可靠性，而且，为保证高优先级的V2X数据包传输数据的准确性，可以通过配置高优先级对应的V2X通信参数取值范围，为高优先级的数据包分配较多的传输资源，从而在一定程度上提高了高优先级的V2X数据包的准确性。
此外，在本发明实施例中，传输次数可以为V2X数据包在MAC(Media Access Control，媒体介入控制)层的传输次数，其中V2X数据包在MAC层是以PDU(Packet Data Unit，分组数据单元)的格式存在的；传输次数还可以是侧向链路进程传输次数。侧向链路进程用于传输侧向链路上的V2X数据；传输次数还可以是HARQ(Hybrid-ARQ，混合自动重传请求)进程传输次数，其中，应理解，在本发明实施中可以基于HARQ机制重传V2X数据包。
由于本发明实施例中的终端基于V2X数据包的优先级与V2X通信参数取值范围的对应关系，在无线资源上传输V2X数据包，因此，当传输资源紧张时，能够通过配置该对应关系，在一定程度上提高优先级较低的数据包的传输可靠性。
第二方面，提供了一种传输数据包的方法，包括：
终端从基站接收指示信息，该指示信息用于指示基站为终端调度的无线资源，并在无线资源上，传输第一数据包，其中，无线资源包括SPS(Semi-Persistent Scheduling，半静态调度)无线资源或动态调度无线资源。
应理解，假设终端在某一时间段内需要传输K个数据包，则基站在该时间段的起始时刻事先为该时间段内需要传输的K个数据包调度无线资源，若在该时间段内某一时刻需要传输数据包，则直接在基站调度的无线资源上传输数据包，其中，基站为终端在某一时间段内传输数据调度的无线资源即为SPS无线资源。而动态调度无线资源为终端在当前需要传输数据包时，基站为终端当前需要传输的数据包调度无线资源。
由于本发明实施例中终端在基站调度的SPS无线资源或动态无线资源上传输数据包，因此提高了终端传输数据包的效率。
在一种可能的设计中，为了提高基站为终端调度的无线资源的大小容纳第一数据包的可能性，终端从传输第一数据包之前的数据包中，确定满足预设条件的N个第二数据包，并根据N个第二数据包，确定目标参数，并向基站发送目标参数，以使得基站根据目标参数，确定基站调度的无线资源的大小，其中N为不小于零的正整数；目标参数包括以下至少一项：
N个第二数据包中最大数据包的大小、N个第二数据包中最小数据包的大小、N个第二数据包的平均大小。
需要说明的是，在本发明实施例中，预设条件可以为传输第一数据包之前，距离第一数据包最近的一个数据包组，其中数据包组中包括M个数据包，M为大于0的正整数，例如，传输的第一数据包为终端传输的第7个数据包，若M取值为3，则数据包组中包括终端传输的第4个数据包、第5个数据包和第6个数据包；预设条件还可以为传输的第一数据之前的预设时间段T内的数据包，例如预设时间段T为从14:00～14:20，如在该时间段内传输的数据包包括第4个数据包、第5个数据包，则第4个数据包、第5个数据包为满足预设条件的数据包，如在该时间段内传输的数据包为0，则将目标参数设置为0。
其中，M或T的值可以预先配置在终端中，或者是基站向终端发送SIB信息或RRC信令，通过SIB信息或RRC信令携带M或者T的值，终端通过接收基站发送的SIB信息或RRC信令来获取M或者T的值。
由于终端上报传输历史数据包相关信息，使得基站能够根据这些信息进行无线资源调度，增加了调度的准确性和高效性。
在一种可能的设计中，为了提高传输第一数据包成功的可能性，可选的，终端接收基站调度的无线资源后，先判断基站调度的无线资源大小是否能够容纳第一数据包，若确定基站大小能够容纳第一数据包，则在基站调度的无线资源上，传输第一数据包；若确定基站大小不能够容纳第一数据包，则向基站发送资源请求消息，其中，资源请求消息用于向基站请求无线资源。若终端配置了发送资源请求的限制，则终端取消发送资源请求的限制，其中，发送资源请求的限制包括SR-Mask(Scheduling Request，调度请求-屏蔽)。
需要说明的是，在本发明实施例中，资源请求消息可以包含调度请求消息或者是用户辅助信息。其中调度请求消息是指终端向基站发送调度请求，表明终端侧有数据等待发送，但是缺少相应的资源。基站收到调度请求后，会为用户调度少量资源使得用户上报其缓存区数据量，之后基站再根据用户上报的缓存区数据量，为其调度较多的资源来进行数据的发送；调度请求信息可以在PUCCH(Physical Uplink Control Channel，物理上行控制信道)或者PRACH(Physical Random Access Channel，物理随机接入信道)上传输；用户辅助信息是指用户向基站报告用户相关的信息，例如数据量大小，数据的到达周期，数据包到达时刻与系统0号帧的偏移量等信息使得基站根据收到的用户辅助信息为其调度资源。
在一种可能的设计中，本发明实施例支持V2X通信，具体的，基站调度的无线资源为用于V2X通信的无线资源，第一数据包为V2X数据包。
第三方面，提供了一种V2X通信的方法，包括：
终端从基站接收第一资源池配置信息，并根据第一资源池配置信息，获取第一资源池，然后，终端检测第一资源池；并根据检测结果确定第一资源 池中的可用资源；再从第一资源池中的可用资源中选择用于V2X通信的无线资源；最后，在选择的无线资源上，进行V2X通信。
需要说明的是，在V2X通信中，通常情况下当终端与基站之间通信链路质量较高时，基站可以为终端调度无线资源，终端可以通过基站调度的无线资源进行V2X通信。当终端与基站之间通信链路质量变差时，当通信链路质量差到一定程度时，基站无法为终端调度无线资源，终端需要检测基站为终端配置的公共资源池，从公共资源池中获取可用的无线资源进行V2X通信，然而，基站无法为终端调度无线资源，终端需要检测基站为终端配置的公共资源池需要一段时间，在该时间段内若终端需要进行V2X通信，由于没有进行通信的无线资源，因此无法进行V2X通信，而本发明实施例中在终端与基站通信链路质量变差，但是基站还能够为终端分配无线资源的同时，基站能够为终端配置第一资源池，终端从第一资源池中获取无线资源，当基站与终端之间链路差到一定程度无法为终端调度无线资源时，终端能够从第一资源池中获取的无线资源进行V2X通信，从而提高了V2X通信的连续性，并在一定程度上降低了V2X通信业务的时延。
在一种可能的设计中，终端接收基站启动第一资源池检测的指示消息，检测第一资源池；或者，判断与基站之间的通信链路质量小于预设阈值后，检测第一资源池。
由于通常情况下配置的第一资源池中无线资源较少，因此终端在与基站的通信链路质量变差，基站无法为终端调度无线资源时，终端在获取的第一资源池的无线资源上进行V2X通信的同时，可选的，在第二资源池中完成资源检测后，则切换到第二资源池中可用的无线资源上进行V2X通信。
应理解，第二资源池中的无线资源大于第一资源池中的无线资源，其中第二资源池相当于现有技术中的公共资源池。也就是说，本发明实施例在不改变原有的终端获取无线资源方式的基础上，在终端获取不到基站调度的无线资源以及还还未获取到公共资源池中无线资源时，能够通过获取的第一资源池中的无线资源进行V2X通信，从而提高了V2X通信的连续性。
需要说明的是，在本发明实施例中，第一资源池也可以为公共资源池。
需要说明的是，在本发明实施例中，基站为终端配置第一资源池，然后向终端发送SIB信息或RRC信令，其中，SIB信息或RRC信令携带第一资源池配置信息，终端根据基站发送的SIB信息或RRC信令中携带的第一资源池配置信息，获取第一资源池。其中，当基站为终端配置第二资源池时，终端获取第二资源池的方式与终端获取第一资源池的方式类似，在此不再赘述。
由于V2X通信具有不同类型的业务，包括V2X业务和P2X业务。可选的，在第一资源池配置信息和/或第二资源池配置信息中携带资源池的业务指示信息，具体的，当第一资源池配置信息携带资源池的业务指示信息时，业务指示信息用于指示第一资源池是否可以被某种类型业务所使用；当第二资源池配置信息携带资源池的业务指示信息时，业务指示信息用于指示第二资源池是否可以被某种类型业务所使用。如果业务指示信息指示资源池不能被某种类型的业务使用，则该种类型的业务不能使用资源池中的资源进行通信。
由于在V2X通信中，可以采用基于检测的资源选择机制也可以采用随机资源选择机制。其中基于检测的资源选择机制是指终端在资源池检测一段时间，才能确定资源池中的可用资源，然后从可用资源中选择资源进行通信；随机资源选择机制只指终端并不检测资源池，而是随机的从资源池中选择资源并利用选择的资源进行通信。可选的，在第一资源池配置信息和/或第二资源池配置信息中携带资源池的资源选择机制指示信息，具体的，当第一资源池配置信息中携带资源池的资源选择机制指示信息时，资源选择机制指示信息用于指示第一资源池采用的是基于检测的资源选择机制还是随机资源选择机制，还是两种资源选择机制都可以采用。当第二资源池配置信息携带资源池的资源选择机制指示信息时，资源选择机制指示信息用于指示第二资源池采用的是基于检测的资源选择机制还是随机资源选择机制还是两种资源选择机制都可以采用。如果资源选择机制指示信息指示资源池不能采用某种资源选择机制，则使用该资源池的终端不能采用该种资源选择机制进行资源选择。
第四方面，提供了一种V2X通信的方法，包括：
基站确定V2X数据包的优先级与V2X通信参数取值范围的对应关系，并向终端发送该对应关系，其中，V2X通信参数包括以下参数中的至少一个：MCS、传输次数、传输功率和所占用的RB的个数。
在一种可能的设计中，基站向终端发送系统信息块SIB信息或无线资源控制协议RRC信令，其中，SIB信息或RRC信令中携带对应关系。
第五方面，提供了一种传输数据包的方法，包括：
基站为终端调度无线资源，并向终端发送指示信息，该指示信息用于指示为终端调度的无线资源，其中，无线资源包括半静态调度SPS无线资源或动态调度无线资源，无线资源用于终端传输第一数据包。
在一种可能的设计中，基站接收终端的目标参数，并根据目标参数，确定为终端调度的无线资源的大小，然后为终端调度无线资源，目标参数包括以下至少一项：
N个第二数据包中最大数据包的大小、N个第二数据包中最小数据包的大小、N个第二数据包的平均大小，其中N为不小于零的正整数；
其中，N个第二数据包为终端传输第一数据包之前的数据包中满足预设条件的数据包。
在一种可能的设计中，基站接收到终端发送的资源请求消息，并根据资源请求消息，向终端发送无线资源指示，其中，无线资源指示用于指示基站收到终端发送的资源请求消息后为终端调度的无线资源，资源请求消息用于向基站请求无线资源。
在一种可能的设计中，基站确定的无线资源为用于V2X通信的无线资源，第一数据包为V2X数据包。
第六方面，提供了一种V2X通信的方法，包括：
基站确定为终端配置的第一资源池，并向终端发送第一资源池配置信息。
在一种可能的设计中，基站向终端发送第一资源池配置信息，向基站发送启动第一资源池检测的指示消息。
第七方面，提供了一种V2X通信的设备，包括：处理单元和收发单元，其中，处理单元用于获取V2X数据包的优先级与V2X通信参数取值范围的对应关系，并根据V2X数据包的优先级以及对应关系，确定V2X数据包的优先级对应的V2X通信参数取值范围，并从确定的V2X通信参数取值范围中选择一个V2X通信参数值，V2X通信参数包括以下参数中的至少一个：调制与编码策略MCS、传输次数、传输功率和所占用的资源块RB的个数；收发单元用于根据选择的V2X通信参数值，在无线资源上传输V2X数据包。
在一种可能的设计中，处理单元获取对应关系具体用于通过收发单元接收的由基站发送的系统信息块SIB信息或无线资源控制协议RRC信令中获取对应关系，其中，SIB信息或RRC信令中携带对应关系；或者，获取预先配置的对应关系。
第八方面，提供了一种传输数据包的设备，包括：接收单元、发送单元和处理单元，其中，接收单元用于从基站接收指示信息，该指示信息用于指示基站为终端调度的无线资源，无线资源包括半静态调度SPS无线资源或动态调度无线资源；发送单元用于在基站调度的无线资源上，传输第一数据包。
在一种可能的设计中，处理单元用于在接收单元接收基站调度的无线资源之前，从传输第一数据包之前的数据包中，确定满足预设条件的N个第二数据包，并根据N个第二数据包，确定目标参数，以使得基站根据目标参数，确定基站调度的无线资源的大小，N为不小于零的正整数；其中，目标参数包括以下至少一项：
N个第二数据包中最大数据包的大小、N个第二数据包中最小数据包的大小、N个第二数据包的平均大小；
发送单元还用于向基站发送目标参数。
在一种可能的设计中，处理单元还用于在接收单元接收基站调度的无线资源之后，发送单元传输第一数据包之前，确定基站调度的无线资源大小能够容纳第一数据包。
在一种可能的设计中，发送单元还用于若处理单元确定基站调度的无线 资源大小不能容纳第一数据包，则向基站发送资源请求消息，资源请求信息用于向基站请求无线资源。
在一种可能的设计中，基站调度的无线资源为用于V2X通信的无线资源，第一数据包为V2X数据包。
第九方面，提供了一种V2X通信的设备，包括：收发单元和处理单元，其中收发单元用于从基站接收第一资源池配置信息，处理单元用于根据第一资源池配置信息，获取第一资源池，并检测第一资源池，然后，根据检测结果确定第一资源池中的可用资源；再从第一资源池中的可用资源中选择用于V2X通信的无线资源；最后，收发单元还用于在选择的无线资源上，进行V2X通信。
在一种可能的设计中，收发单元还用于接收基站启动第一资源池检测的指示消息；或者，处理单元还用于判断与基站之间的通信链路质量小于预设阈值。
第十方面，提供了一种V2X通信的基站，包括：处理单元和收发单元，其中，处理单元用于确定V2X数据包的优先级与V2X通信参数取值范围的对应关系，V2X通信参数包括以下参数中的至少一个：调制与编码策略MCS、传输次数、传输功率和所占用的资源块RB的个数；收发单元用于向终端发送对应关系。
在一种可能的设计中，收发单元向终端发送对应关系，具体用于：向终端发送系统信息块SIB信息或无线资源控制协议RRC信令，其中，SIB信息或RRC信令中携带对应关系。
第十一方面，提供了一种传输数据包的基站，包括：处理单元和收发单元，其中，处理单元用于为终端调度无线资源，无线资源包括半静态调度SPS无线资源或动态调度无线资源，无线资源用于终端传输第一数据包；收发单元用于向终端发送指示信息，该指示信息用于指示为终端调度的无线资源。
在一种可能的设计中，收发单元，还用于在处理单元调度无线资源之前，接收终端的目标参数，目标参数包括以下至少一项：
N个第二数据包中最大数据包的大小、N个第二数据包中最小数据包的大小、N个第二数据包的平均大小，其中N为不小于零的正整数；
其中，N个第二数据包为终端传输第一数据包之前的数据包中满足预设条件的数据包；
处理单元还用于根据目标参数，确定为终端调度的无线资源的大小。
在一种可能的设计中，收发单元还用于接收到终端发送的资源请求消息，资源请求消息用于向基站请求无线资源；并根据资源请求消息，向终端发送无线资源指示，其中，无线资源指示用于指示基站收到终端发送的资源请求消息后为终端调度的无线资源，。
在一种可能的设计中，基站确定的无线资源为用于V2X通信的无线资源，第一数据包为V2X数据包。
第十二方面，提供了一种V2X通信的基站，包括：处理单元和收发单元，其中，处理单元用于确定为终端配置的第一资源池，收发单元用于向终端发送第一资源池配置信息。
在一种可能的设计中，收发单元还用于向基站发送启动第一资源池检测的指示消息。
第十三方面，提供了一种V2X通信系统，包括：第七方面提供的任一可能设计的设备，和第十方面提供的任一可能设计的基站。
第十四方面，提供了一种传输数据包的通信系统，包括第八方面提供的任一可能设计的设备，和第十一方面提供的任一可能设计的基站。
第十五面，提供了一种V2X通信系统，包括第九方面提供的任一可能设计的设备，和第十二方面提供的任一可能设计的基站。
附图说明
图1为现有技术中V2V通信场景示意图；
图2为本发明实施例一V2X通信的方法的流程示意图；
图3为本发明实施例二传输数据包的方法的流程示意图；
图4为本发明实施例三传输数据包的方法的流程示意图；
图5为本发明实施例四V2X通信的方法的流程示意图；
图6为本发明实施例V2X通信的设备的结构示意图；
图7为本发明实施例V2X通信的设备的硬件结构示意图；
图8为本发明实施例V2X通信的基站的结构示意图；
图9为本发明实施例V2X通信的基站的硬件结构示意图；
图10为本发明实施例V2X通信的基站系统的结构示意图；
图11为本发明实施例传输数据包的设备的结构示意图；
图12为本发明实施例传输数据包的设备的硬件结构示意图；
图13本发明实施例传输数据包的基站的结构示意图；
图14为本发明实施例传输数据包的基站的硬件结构示意图；
图15为本发明实施例传输数据包的系统结构示意图；
图16为本发明实施例V2X通信的设备的结构示意图；
图17为本发明实施例V2X通信的设备的硬件结构示意图；
图18为本发明实施例V2X通信的基站的结构示意图；
图19为本发明实施例V2X通信的基站的硬件结构示意图；
图20为本发明实施例V2X通信的基站系统的结构示意图。
具体实施方式
为了使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。
本发明实施例一应用于V2X通信中，本发明实施例一中的终端也可称之为UE(User Equipment，用户设备)、MS(Mobile Station，移动台)、移动终端(Mobile Terminal)等，可选的，该终端可以为手机、平板电脑、PDA(Personal Digital Assistant，个人数字助理)、POS(Point of Sales，销售终端)、车载电脑、机顶盒等。
由于本发明实施例一中的终端基于V2X数据包的优先级与V2X通信参数取值范围的对应关系，在无线资源上传输V2X数据包，因此，当传输资源紧张时，能够通过配置该对应关系，在一定程度上提高优先级较低的数据包的传输可靠性。
如图2所示，本发明实施例一V2X通信的方法，包括：
步骤200，终端获取V2X数据包的优先级与V2X通信参数取值范围的对应关系，其中，V2X通信参数包括以下参数中的至少一个：MCS(Modulation and Coding Scheme，调制与编码策略)、传输次数、传输功率和所占用的RB(Resource Block，资源块)的个数。
具体的，优先级与V2X通信参数取值范围的对应关系可以预先配置在终端中。
此外，还可以通过基站在确定V2X数据包的优先级与V2X通信参数的对应关系后，向终端发送优先级与V2X通信参数的对应关系，终端通过接收基站发送的优先级与V2X通信参数取值范围的对应关系来获取优先级与V2X通信参数取值范围的对应关系。
应理解，可选的，当优先级与V2X通信参数取值范围的对应关系预先设置在基站中时，基站确定的优先级与V2X通信参数的对应关系为预先配置在基站中的优先级与V2X通信参数的对应关系；或者，当预先在基站中配置优先级与V2X通信参数取值范围的对应关系的生成算法时，基站根据预先配置在基站中的算法，确定优先级与V2X通信参数取值范围的对应关系。
为了便于基站向终端发送对应关系，可选的，基站向终端发送SIB信息或RRC信令，通过SIB信息或RRC信令携带优先级与V2X通信参数取值范围的对应关系，终端通过接收基站发送的SIB信息或RRC信令来获取优先级与V2X通信参数取值范围的对应关系。
步骤201，终端根据V2X数据包的优先级以及对应关系，确定V2X数据包的优先级对应的V2X通信参数取值范围。
步骤202，终端从确定的V2X通信参数取值范围中选择一个V2X通信参 数值。
步骤203，终端根据选择的V2X通信参数值，在无线资源上传输V2X数据包。
需要说明的是，不同的优先级对应不同的V2X通信参数取值范围，其中，不同的优先级对应的V2X通信参数取值范围可以存在重叠，而且V2X通信参数取值范围可以为一个数值，也可以为一个区间。例如，终端传输的V2X数据包中存在三种优先级的V2X数据包，具体的，三种优先级分别为第一优先级、第二优先级和第三优先级，且第一优先级的V2X数据包的优先级最高，第三优先级的V2X数据包的优先级最低，若V2X通信参数包括MCS、传输次数和所占RB的个数，第一优先级对应的MCS取值范围为3～7、传输次数为5～8、所占RB的个数为10～16，第二优先级对应的MCS取值范围为1～3、传输次数为2～5、所占RB的个数为4～10，第三优先级对应的MCS取值范围为0～1、传输次数为1、所占RB的个数为2。
具体的，V2X数据包的优先级与V2X通信参数取值范围的对应关系如表1所示。
表1
Figure PCTCN2016101236-appb-000001
假定当终端确定当前需要传输的V2X数据包为第一优先级的数据包时，选择的MCS为5，传输次数为4，由于当前要传输的V2X数据包的大小一定，则传输V2X数据包需要所占RB的个数能够基于选择的MCS的取值、传输次数的取值确定，确定的所占RB个数的值符合V2X参数中RB个数的约束。
较佳的，当传输资源紧张时，为保证低优先级的V2X数据包的可靠性传 输，可以通过配置低优先级对应的V2X通信参数取值范围，使得低优先级的V2X数据包占用的传输资源较少，从而在传输资源紧张时，在一定程度上提高了低优先级的V2X数据包的可靠性，而且，为保证高优先级的V2X数据包传输数据的准确性，可以通过配置高优先级对应的V2X通信参数取值范围，为高优先级的数据包分配较多的传输资源，从而在一定程度上提高了高优先级的V2X数据包的准确性。
此外，在本发明实施例一中，传输次数可以为V2X数据包在MAC(Media Access Control，媒体介入控制)层的传输次数，其中V2X数据包在MAC层是以PDU(Packet Data Unit，分组数据单元)的格式存在的；传输次数还可以是侧向链路进程传输次数。侧向链路进程用于传输侧向链路上的V2X数据；传输次数还可以是HARQ进程传输次数，其中，应理解，在本发明实施中可以基于HARQ机制重传V2X数据包。
本发明实施例二应用于无线通信中，本发明实施例二中的终端也可称之为UE、MS、移动终端等，可选的，该终端可以为手机、平板电脑、PDA、POS、车载电脑、机顶盒等。
由于本发明实施例二中终端在基站调度的SPS无线资源或动态无线资源上传输数据包，因此提高了终端传输数据包的效率。本发明的有效增益在于终端上报传输历史数据包相关信息，使得基站能够根据这些信息进行无线资源调度，增加了调度的准确性和高效性；
下面以无线通信为V2X通信为例进行具体介绍，当为其他类型的无线通信时，与V2X通信类似，在此不再赘述。
如图3所示，本发明实施例二传输数据包的方法，包括：
步骤300，基站为终端调度无线资源，其中该无线资源包括SPS无线资源或动态调度无线资源，该无线资源用于终端传输第一数据包。
应理解，假设终端在某一时间段内需要传输K个数据包，则基站在该时间段的起始时刻事先为该时间段内需要传输的K个数据包调度无线资源，若在该时间段内某一时刻需要传输数据包，则直接在基站调度的无线资源上传 输数据包，其中，基站为终端在某一时间段内传输数据调度的无线资源即为SPS无线资源。而动态调度无线资源为终端在当前需要传输数据包时，基站为终端当前需要传输的数据包调度无线资源。
为了提高基站为终端调度的无线资源的大小容纳第一数据包的可能性，可选的，终端从传输第一数据包之前的数据包中，确定满足预设条件的N个第二数据包，并根据N个第二数据包，确定目标参数，并向基站发送目标参数，以使得基站根据目标参数，确定基站调度的无线资源的大小，其中N为不小于零的正整数；目标参数包括以下至少一项：
N个第二数据包中最大数据包的大小、N个第二数据包中最小数据包的大小、N个第二数据包的平均大小。
需要说明的是，在本发明实施例二中，预设条件可以为传输第一数据包之前，距离第一数据包最近的一个数据包组，其中数据包组中包括M个数据包，M为大于0的正整数，例如，传输的第一数据包为终端传输的第7个数据包，若M取值为2，则数据包组中包括终端传输的第5个数据包和第6个数据包；预设条件还可以为传输的第一数据之前的预设时间段T内的数据包，例如预设时间段为从15:00～15:10，如在该时间段内传输的数据包包括第6个数据包、第7个数据包，则第6个数据包、第7个数据包为满足预设条件的数据包，如在该时间段内传输的数据包为0，则将目标参数设置为0。
其中，M或T的值可以预先配置在终端中，或者是基站向终端发送SIB信息或RRC信令，通过SIB信息或RRC信令携带M或者T的值，终端通过接收基站发送的SIB信息或RRC信令来获取M或者T的值。
步骤301，基站向终端发送指示信息，其中该指示信息用于指示该无线资源。
步骤302，终端接收基站发送的指示信息。
为了提高传输第一数据包成功的可能性，可选的，终端接收基站调度的无线资源后，先判断基站调度的无线资源大小是否能够容纳第一数据包，若确定基站大小能够容纳第一数据包，则在基站调度的无线资源上，传输第一 数据包；若确定基站大小不能够容纳第一数据包，则向基站发送资源请求消息，其中，资源请求信息用于向基站请求无线资源。若终端配置了发送资源请求的限制，则终端取消所述发送资源请求的限制，发送资源请求的限制包括SR-Mask。
需要说明的是，在本发明实施例中，资源请求消息可以包含调度请求消息或者是用户辅助信息。其中调度请求消息是指终端向基站发送调度请求，表明终端侧有数据等待发送，但是缺少相应的资源。基站收到调度请求后，会为用户调度少量资源使得用户上报其缓存区数据量，之后基站再根据用户上报的缓存区数据量，为其调度较多的资源来进行数据的发送；调度请求信息可以在PUCCH或者PRACH上传输；用户辅助信息是指用户向基站报告用户相关的信息，例如数据量大小，数据的到达周期，数据包到达时刻与系统0号帧的偏移量等信息使得基站根据收到的用户辅助信息为其调度资源。
步骤303，终端在指示信息指示的无线资源上，传输第一数据包。
可选的，本发明实施例二支持V2X通信，具体的，基站调度的无线资源为用于V2X通信的无线资源，第一数据包为V2X数据包。
如图4所示，本发明实施例三传输数据包的方法，包括：
步骤400，终端确定需要传输第一数据包时，从传输第一数据包之前的数据包中，确定满足预设条件的N个第二数据包，其中N为不小于零的正整数。
需要说明的是，预设条件可以为传输第一数据包之前，距离第一数据包最近的一个数据包组，其中数据包组中包括M个数据包，M为大于0的正整数，例如，传输的第一数据包为终端传输的第7个数据包，若M取值为3，则数据包组中包括终端传输的第4个数据包、第5个数据包和第6个数据包；预设条件还可以为传输的第一数据之前的预设时间段T内的数据包，例如预设时间段为从14:00～14:20，如在该时间段内传输的数据包包括第4个数据包、第5个数据包，则第4个数据包、第5个数据包为满足预设条件的数据包，如在该时间段内传输的数据包为0，则将目标参数设置为0。
其中，M或T的值可以预先配置在终端中，或者是基站向终端发送SIB 信息或RRC信令，通过SIB信息或RRC信令携带M或者T的值，终端通过接收基站发送的SIB信息或RRC信令来获取M或者T的值。
步骤401，终端根据N个第二数据包，确定目标参数，其中，目标参数包括以下至少一项：N个第二数据包中最大数据包的大小、N个第二数据包中最小数据包的大小和N个第二数据包的平均大小。
步骤402，终端向基站发送目标参数。
步骤403，基站接收目标参数，并根据目标参数，为终端调度无线资源，其中该无线资源包括SPS无线资源或动态调度无线资源，该无线资源用于终端传输第一数据包。
步骤404，基站向终端发送指示信息，该指示信息用于指示该无线资源。
步骤405，终端接收基站发送的该指示信息。
步骤406，终端判断该指示信息指示的无线资源是否能够容纳第一数据包，若是，则执行步骤407，否则执行步骤408。
步骤407，终端在该指示信息指示的无线资源上，传输第一数据包。
步骤408，终端向基站发送资源请求消息，其中，资源请求信息用于向基站请求无线资源。
需要说明的是，资源请求消息可以包含调度请求消息或者是用户辅助信息。其中调度请求消息是指终端向基站发送调度请求，表明终端侧有数据等待发送，但是缺少相应的资源。基站收到调度请求后，会为用户调度少量资源使得用户上报其缓存区数据量，之后基站再根据用户上报的缓存区数据量，为其调度较多的资源来进行数据的发送；调度请求信息可以在PUCCH或者PRACH上传输；用户辅助信息是指用户向基站报告用户相关的信息，例如数据量大小，数据的到达周期，数据包到达时刻与系统0号帧的偏移量等信息使得基站根据收到的用户辅助信息为其调度资源。
步骤409，基站接收到终端发送的资源请求消息，并根据所述资源请求消息，向终端发送无线资源指示，其中，无线资源指示用于指示基站收到终端发送的资源请求消息后为终端调度的无线资源。
其中，在本发明实施例二、实施例三中，第一数据包、第二数据包为V2X数据包，基站为终端调度的无线通信资源为用于V2X通信的无线资源。
本发明实施例四应用于V2X通信中，本发明实施例一中的终端也可称之为UE、MS、移动终端等，可选的，该终端可以为手机、平板电脑、PDA、POS、车载电脑、机顶盒等。
由于在终端获取不到基站调度的无线资源以及还还未获取到公共资源池中无线资源时，能够通过获取的第一资源池中的无线资源进行V2X通信，从而提高了V2X通信的连续性。
如图5所示，本发明实施例四V2X通信的方法，包括：
步骤500，基站确定为终端配置的第一资源池。
步骤501，基站向终端发送第一资源池配置信息。
步骤502，终端从基站接收第一资源池配置信息。
步骤503，终端根据第一资源池配置信息，获取第一资源池。
步骤504，终端检测第一资源池，并根据检测结果确定第一资源池中的可用资源。
可选的，基站向终端发送启动第一资源池检测的指示消息，终端接收基站启动第一资源池检测的指示消息，检测第一资源池；或者，终端判断与基站之间的通信链路质量小于预设阈值后，检测第一资源池。
需要说明的是，基站可以在检测到与终端之间的通信链路质量小于预设阈值时，向终端发送启动第一资源池检测的指示消息。
步骤505，终端从第一资源池中的可用资源中选择用于V2X通信的无线资源。
步骤506，终端在选择的无线资源上，进行V2X通信。
可选的，终端在第二资源池中完成资源检测后，则切换到第二资源池中可用的无线资源上进行V2X通信。
较佳的，第二资源池中的无线资源大于第一资源池中的无线资源
需要说明的是，在V2X通信中，通常情况下当终端与基站之间通信链路 质量较高时，基站可以为终端调度无线资源，终端可以通过基站调度的无线资源进行V2X通信，当终端与基站之间通信链路质量变差时，当通信链路质量差到一定程度时，基站无法为终端调度无线资源，终端需要检测基站为终端配置的公共资源池，从公共资源池中获取可用的无线资源进行V2X通信，然而，基站无法为终端调度无线资源，终端需要检测基站为终端配置的公共资源池需要一段时间，在该时间段内若终端需要进行V2X通信，由于没有进行通信的无线资源，因此无法进行V2X通信，而本发明实施例中在终端与基站通信链路质量变差，但是基站还能够为终端分配无线资源的同时，基站能够为终端配置第一资源池，终端从第一资源池中获取无线资源，当基站与终端之间链路差到一定程度无法为终端调度无线资源时，终端能够从第一资源池中获取的无线资源进行V2X通信，从而提高了V2X通信的连续性，并在一定程度上降低了V2X通信业务的时延。
因此，基站需要在基站与终端的通信链路彻底断开之前，为终端配置第一资源池，以及终端在基站与终端的通信链路彻底断开之前，从第一资源池中获取到可用的无线资源。
由于通常情况下配置的第一资源池中无线资源较少，因此终端在与基站的通信链路质量变差到基站无法为终端调度无线资源时，终端在获取的第一资源池的无线资源上进行V2X通信的同时，可选的，在第二资源池中完成资源检测后，则切换到第二资源池中可用的无线资源上进行V2X通信。
应理解，第二资源池中的无线资源大于第一资源池中的无线资源，其中第二资源池相当于现有技术中的公共资源池。也就是说，本发明实施例四在不改变原有的终端获取无线资源方式的基础上，在终端获取不到基站调度的无线资源以及还还未获取到公共资源池中无线资源时，能够通过获取的第一资源池中的无线资源进行V2X通信，从而提高了V2X通信的连续性。
需要说明的是，在本发明实施例四中，第一资源池也可以为公共资源池。
需要说明的是，在本发明实施例中，基站为终端配置第一资源池，然后向终端发送SIB信息或RRC信令，其中，SIB信息或RRC信令携带第一资源 池配置信息，终端根据基站发送的SIB信息或RRC信令中携带的第一资源池配置信息，获取第一资源池。其中，当基站为终端配置第二资源池时，终端获取第二资源池的方式与终端获取第一资源池的方式类似，在此不再赘述。
由于V2X通信具有不同类型的业务，包括V2X业务和P2X业务。可选的，在第一资源池配置信息和/或第二资源池配置信息中携带资源池的业务指示信息，具体的，当第一资源池配置信息携带资源池的业务指示信息时，业务指示信息用于指示第一资源池是否可以被某种类型业务所使用；当第二资源池配置信息携带资源池的业务指示信息时，业务指示信息用于指示第二资源池是否可以被某种类型业务所使用。如果业务指示信息指示资源池不能被某种类型的业务使用，则该种类型的业务不能使用资源池中的资源进行通信。
由于在V2X通信可以采用基于检测的资源选择机制或随机资源选择机制，其中基于检测的资源选择机制是指终端在资源池检测一段时间，才能确定资源池中的可用资源，然后从可用资源中选择资源进行通信；随机资源选择机制只指终端并不检测资源池，而是随机的从资源池中选择资源并利用选择的资源进行通信。可选的，在第一资源池配置信息和/或第二资源池配置信息中携带资源池的资源选择机制指示信息，具体的，当第一资源池配置信息中携带资源池的资源选择机制指示信息时，资源选择机制指示信息用于指示第一资源池采用的是基于检测的资源选择机制还是随机资源选择机制，还是两种资源选择机制都可以采用。当第二资源池配置信息携带资源池的资源选择机制指示信息时，资源选择机制指示信息用于指示第二资源池采用的是基于检测的资源选择机制还是随机资源选择机制还是两种资源选择机制都可以采用。如果资源选择机制指示信息指示资源池不能采用某种资源选择机制，则使用该资源池的终端不能采用该种资源选择机制进行资源选择。
基于同一发明构思，本发明实施例中还提供了一种V2X通信的设备、基站和系统，由于V2X通信的设备、基站和系统对应的方法为本发明实施例一V2X通信的方法，因此本发明实施例V2X通信的设备、基站和系统的实施可以参见该方法的实施，重复之处不再赘述。
如图6所示，本发明实施例五V2X通信的设备，包括：处理单元600和收发单元610，其中，处理单元600用于获取V2X数据包的优先级与V2X通信参数取值范围的对应关系，并根据V2X数据包的优先级以及对应关系，确定V2X数据包的优先级对应的V2X通信参数取值范围，并从确定的V2X通信参数取值范围中选择一个V2X通信参数值，V2X通信参数包括以下参数中的至少一个：调制与编码策略MCS、传输次数、传输功率和所占用的资源块RB的个数；收发单元610用于根据选择的V2X通信参数值，在无线资源上传输V2X数据包。
可选的，处理单元600获取对应关系具体用于通过收发单元610接收的由基站发送的系统信息块SIB信息或无线资源控制协议RRC信令中获取对应关系，其中，SIB信息或RRC信令中携带对应关系；或者，获取预先配置的对应关系。
应注意，本发明实施例中，处理单元600可以由处理器实现，收发单元610可以由收发器实现。如图7所示，V2X通信的设备700可以包括处理器710、收发器720和存储器730。其中，存储器730可以用于存储设备700出厂时预装的程序/代码，也可以存储用于处理器710执行时的代码等。
其中，处理器710可以采用通用的CPU(Central Processing Unit，中央处理器)，微处理器，ASIC(Application Specific Integrated Circuit，应用专用集成电路)，或者一个或多个集成电路，用于执行相关操作，以实现本发明实施例所提供的技术方案。
应注意，尽管图7所示的设备700仅仅示出了处理器710、收发器720和存储器730，但是在具体实现过程中，本领域的技术人员应当明白，该设备700还包含实现正常运行所必须的其他器件。同时，根据具体需要，本领域的技术人员应当明白，该设备700还可包含实现其他附加功能的硬件器件。此外，本领域的技术人员应当明白，该设备也可仅仅包含实现本发明实施例所必须的器件或模块，而不必包含图7中所示的全部器件。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流 程，是可以通过计算机程序来指令相关的硬件来完成，上述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，上述的存储介质可为磁盘、光盘、ROM(Read-Only Memory，只读存储记忆体)或RAM(Random Access Memory，随机存储记忆体)等。
如图8所示，本发明实施例V2X通信的基站，包括：处理单元800和收发单元810，其中，处理单元800用于确定V2X数据包的优先级与V2X通信参数取值范围的对应关系，V2X通信参数包括以下参数中的至少一个：调制与编码策略MCS、传输次数、传输功率和所占用的资源块RB的个数；收发单元810用于向终端发送对应关系。
可选的，收发单元810向终端发送对应关系，具体用于：向终端发送系统信息块SIB信息或无线资源控制协议RRC信令，其中，SIB信息或RRC信令中携带对应关系。
应注意，本发明实施例中，处理单元800可以由处理器实现，收发单元810可以由收发器实现。如图9所示，V2X通信的基站900可以包括处理器910、收发器920和存储器930。其中，存储器930可以用于存储基站900出厂时预装的程序/代码，也可以存储用于处理器910执行时的代码等。
其中，处理器910可以采用通用的CPU，微处理器，ASIC，或者一个或多个集成电路，用于执行相关操作，以实现本发明实施例所提供的技术方案。
应注意，尽管图9所示的基站900仅仅示出了处理器910、收发器920和存储器930，但是在具体实现过程中，本领域的技术人员应当明白，该基站900还包含实现正常运行所必须的其他器件。同时，根据具体需要，本领域的技术人员应当明白，该基站900还可包含实现其他附加功能的硬件器件。此外，本领域的技术人员应当明白，该基站也可仅仅包含实现本发明实施例所必须的器件或模块，而不必包含图9中所示的全部器件。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，上述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施 例的流程。其中，上述的存储介质可为磁盘、光盘、ROM或RAM等。
如图10所示，本发明实施例V2X通信的系统，包括：本发明实施例如图6所示的任一设备1000和本发明实施例如图8所示的任一基站1010。
基于同一发明构思，本发明实施例中还提供了一种传输数据包的设备、基站和系统，由于传输数据包的设备、基站和系统对应的方法为本发明实施例二和实施例三传输数据包的方法，因此本发明实施例传输数据包的设备、基站和系统的实施可以参见该方法的实施，重复之处不再赘述。
如图11所示，本发明实施例传输数据包的设备，包括：接收单元1100、发送单元1120和处理单元1110，其中，接收单元1100用于从基站接收指示信息，该指示信息用于指示基站为终端调度的无线资源，无线资源包括半静态调度SPS无线资源或动态调度无线资源；发送单元1120用于在基站调度的无线资源上，传输第一数据包。
可选的，处理单元1110用于在接收单元1100接收基站调度的无线资源之前，从传输第一数据包之前的数据包中，确定满足预设条件的N个第二数据包，并根据N个第二数据包，确定目标参数，以使得基站根据目标参数，确定基站调度的无线资源的大小，N为不小于零的正整数；其中，目标参数包括以下至少一项：
N个第二数据包中最大数据包的大小、N个第二数据包中最小数据包的大小、N个第二数据包的平均大小；
发送单元1120还用于向基站发送目标参数。
可选的，处理单元1110还用于在接收单元1100接收基站调度的无线资源之后，发送单元1120传输第一数据包之前，确定基站调度的无线资源大小能够容纳第一数据包。
可选的，发送单元1120还用于若处理单元1110确定基站调度的无线资源大小不能容纳第一数据包，则向基站发送资源请求消息，资源请求信息用于向基站请求无线资源。
基站调度的无线资源为用于V2X通信的无线资源，第一数据包为V2X数 据包。
应注意，本发明实施例中，处理单元1110可以由处理器实现，接收单元1100和发送单元1120可以由收发器实现。如图12所示，传输数据包的设备1200可以包括处理器1210、收发器1220和存储器1230。其中，存储器1230可以用于存储设备1200出厂时预装的程序/代码，也可以存储用于处理器1210执行时的代码等。
其中，处理器1210可以采用通用的CPU，微处理器，ASIC，或者一个或多个集成电路，用于执行相关操作，以实现本发明实施例所提供的技术方案。
应注意，尽管图12所示的设备1200仅仅示出了处理器1210、收发器1220和存储器1230，但是在具体实现过程中，本领域的技术人员应当明白，该设备1200还包含实现正常运行所必须的其他器件。同时，根据具体需要，本领域的技术人员应当明白，该设备1200还可包含实现其他附加功能的硬件器件。此外，本领域的技术人员应当明白，该设备也可仅仅包含实现本发明实施例所必须的器件或模块，而不必包含图12中所示的全部器件。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，上述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，上述的存储介质可为磁盘、光盘、ROM或RAM等。
如图13所示，本发明实施例传输数据包的基站，包括：处理单元1300和收发单元1310，其中，处理单元1300用于为终端调度无线资源，无线资源包括半静态调度SPS无线资源或动态调度无线资源，无线资源用于终端传输第一数据包；收发单元1310用于向终端发送指示信息，该指示信息用于指示为终端调度的无线资源。
可选的，收发单元1310，还用于在处理单元1300调度无线资源之前，接收终端的目标参数，目标参数包括以下至少一项：
N个第二数据包中最大数据包的大小、N个第二数据包中最小数据包的 大小、N个第二数据包的平均大小，其中N为不小于零的正整数；
其中，N个第二数据包为终端传输第一数据包之前的数据包中满足预设条件的数据包；
处理单元1300还用于根据目标参数，确定为终端调度的无线资源的大小。
可选的，收发单元1310还用于接收到终端发送的资源请求消息，资源请求消息用于向基站请求无线资源；并根据资源请求消息，向终端发送无线资源指示，其中，无线资源指示用于指示基站收到终端发送的资源请求消息后为终端调度的无线资源。
可选的，包括：基站确定的无线资源为用于V2X通信的无线资源，第一数据包为V2X数据包。
应注意，本发明实施例中，处理单元1300可以由处理器实现，收发单元1310可以由收发器实现。如图14所示，传输数据包的基站1400可以包括处理器1410、收发器1420和存储器1430。其中，存储器1430可以用于存储基站1400出厂时预装的程序/代码，也可以存储用于处理器1410执行时的代码等。
其中，处理器1410可以采用通用的CPU，微处理器，ASIC，或者一个或多个集成电路，用于执行相关操作，以实现本发明实施例所提供的技术方案。
应注意，尽管图14所示的基站1400仅仅示出了处理器1410、收发器1420和存储器1430，但是在具体实现过程中，本领域的技术人员应当明白，该基站1400还包含实现正常运行所必须的其他器件。同时，根据具体需要，本领域的技术人员应当明白，该基站1400还可包含实现其他附加功能的硬件器件。此外，本领域的技术人员应当明白，该基站也可仅仅包含实现本发明实施例所必须的器件或模块，而不必包含图14中所示的全部器件。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，上述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施 例的流程。其中，上述的存储介质可为磁盘、光盘、ROM或RAM等。
如图15所示，本发明实施例传输数据包的系统，包括：本发明实施例如图11所示的任一设备1500和本发明实施例如图13所示的任一基站1510。
基于同一发明构思，本发明实施例中还提供了一种V2X通信的设备、基站和系统，由于V2X通信的设备、基站和系统对应的方法为本发明实施例四V2X通信的方法，因此本发明实施例V2X通信的设备、基站和系统的实施可以参见该方法的实施，重复之处不再赘述。
如图16所示，本发明实施例V2X通信的设备，包括：收发单元1610和处理单元1600，其中收发单元1610用于从基站接收第一资源池配置信息，处理单元1600用于根据第一资源池配置信息，获取第一资源池，并检测第一资源池，然后，根据检测结果确定第一资源池中的可用资源；再从第一资源池中的可用资源中选择用于V2X通信的无线资源；最后，收发单元1610还用于在选择的无线资源上，进行V2X通信。
可选的，收发单元1610还用于接收基站启动第一资源池检测的指示消息；或者，处理单元1600还用于判断与基站之间的通信链路质量小于预设阈值。
应注意，本发明实施例中，处理单元1600可以由处理器实现，收发单元1610可以由收发器实现。如图17所示，V2X通信的设备1700可以包括处理器1710、收发器1720和存储器1730。其中，存储器1730可以用于存储设备1700出厂时预装的程序/代码，也可以存储用于处理器1710执行时的代码等。
其中，处理器1710可以采用通用的CPU，微处理器，ASIC，或者一个或多个集成电路，用于执行相关操作，以实现本发明实施例所提供的技术方案。
应注意，尽管图17所示的设备1700仅仅示出了处理器1710、收发器1720和存储器1730，但是在具体实现过程中，本领域的技术人员应当明白，该设备1700还包含实现正常运行所必须的其他器件。同时，根据具体需要，本领域的技术人员应当明白，该设备1700还可包含实现其他附加功能的硬件器件。 此外，本领域的技术人员应当明白，该设备也可仅仅包含实现本发明实施例所必须的器件或模块，而不必包含图17中所示的全部器件。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，上述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，上述的存储介质可为磁盘、光盘、ROM或RAM等。
如图18所示，本发明实施例V2X通信的基站，包括：处理单元1800和收发单元1810，其中，处理单元1800用于确定为终端配置的第一资源池，收发单元1810用于向终端发送第一资源池配置信息。
可选的，收发单元1810还用于向基站发送启动第一资源池检测的指示消息。
应注意，本发明实施例中，处理单元1800可以由处理器实现，收发单元1810可以由收发器实现。如图19所示，V2X通信的基站1900可以包括处理器1910、收发器1920和存储器1930。其中，存储器1930可以用于存储基站1900出厂时预装的程序/代码，也可以存储用于处理器1910执行时的代码等。
其中，处理器1910可以采用通用的CPU，微处理器，ASIC，或者一个或多个集成电路，用于执行相关操作，以实现本发明实施例所提供的技术方案。
应注意，尽管图19所示的基站1900仅仅示出了处理器1910、收发器1920和存储器1930，但是在具体实现过程中，本领域的技术人员应当明白，该基站1900还包含实现正常运行所必须的其他器件。同时，根据具体需要，本领域的技术人员应当明白，该基站1900还可包含实现其他附加功能的硬件器件。此外，本领域的技术人员应当明白，该基站也可仅仅包含实现本发明实施例所必须的的器件或模块，而不必包含图19中所示的全部器件。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，上述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施 例的流程。其中，上述的存储介质可为磁盘、光盘、ROM或RAM等。
如图20所示，本发明实施例V2X通信系统，包括：本发明实施例如图16所示的设备2000，和本发明实施例如图18所示的基站2010。
从上述内容可以看出，本发明实施中终端获取V2X数据包的优先级与V2X通信参数取值范围的对应关系，并根据V2X数据包的优先级以及对应关系，确定V2X数据包的优先级对应的V2X通信参数取值范围，然后，从确定的V2X通信参数取值范围中选择一个V2X通信参数值；最后，根据选择的V2X通信参数值，在无线资源上传输V2X数据包。其中，V2X通信参数包括以下参数中的至少一个：MCS、传输次数、传输功率和所占用的RB的个数。这种技术方案由于终端基于V2X数据包的优先级与V2X通信参数取值范围的对应关系，在无线资源上传输V2X数据包，因此，当传输资源紧张时，能够通过配置该对应关系，在一定程度上提高优先级较低的数据包的传输可靠性。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设 备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (28)

  1. 一种V2X通信的方法，其特征在于，包括：
    终端获取V2X数据包的优先级与V2X通信参数取值范围的对应关系，所述V2X通信参数包括以下参数中的至少一个：调制与编码策略MCS、传输次数、传输功率和所占用的资源块RB的个数；
    所述终端根据所述V2X数据包的优先级以及所述对应关系，确定所述V2X数据包的优先级对应的V2X通信参数取值范围；
    所述终端从确定的V2X通信参数取值范围中选择一个V2X通信参数值；
    所述终端根据选择的V2X通信参数值，在无线资源上传输V2X数据包。
  2. 如权利要求1所述的方法，其特征在于，所述终端获取所述对应关系，包括：
    所述终端接收基站发送的系统信息块SIB信息或无线资源控制协议RRC信令，其中，所述SIB信息或所述RRC信令中携带所述对应关系；或者
    所述终端获取预先配置的对应关系。
  3. 一种传输数据包的方法，其特征在于，包括：
    终端从基站接收指示信息，所述指示信息用于指示所述基站为终端调度的无线资源，所述无线资源包括半静态调度SPS无线资源或动态调度无线资源；
    所述终端在所述无线资源上，传输第一数据包。
  4. 如权利要求3所述的方法，其特征在于，所述终端接收所述基站调度的所述无线资源之前，还包括：
    所述终端从传输所述第一数据包之前的数据包中，确定满足预设条件的N个第二数据包，其中N为不小于零的正整数；
    所述终端根据所述N个第二数据包，确定目标参数，以使得所述基站根据所述目标参数，确定所述基站调度的无线资源的大小；所述目标参数包括以下至少一项：
    所述N个第二数据包中最大数据包的大小、所述N个第二数据包中最小数据包的大小、所述N个第二数据包的平均大小；
    所述终端向所述基站发送所述目标参数。
  5. 如权利要求3所述的方法，其特征在于，所述终端接收所述基站调度的无线资源之后，传输所述第一数据包之前，还包括：
    所述终端确定所述基站调度的无线资源大小能够容纳所述第一数据包。
  6. 如权利要求5所述的方法，其特征在于，还包括：
    所述终端若确定所述基站调度的无线资源大小不能容纳所述第一数据包，则向所述基站发送资源请求消息，所述资源请求消息用于向所述基站请求无线资源。
  7. 如权利要求3至6任一所述的方法，其特征在于，所述基站调度的无线资源为用于V2X通信的无线资源，所述第一数据包为V2X数据包。
  8. 一种V2X通信的方法，其特征在于，包括：
    基站确定V2X数据包的优先级与V2X通信参数取值范围的对应关系，所述V2X通信参数包括以下参数中的至少一个：调制与编码策略MCS、传输次数、传输功率和所占用的资源块RB的个数；
    所述基站向终端发送所述对应关系。
  9. 如权利要求8所述的方法，其特征在于，所述基站向所述终端发送所述对应关系，包括：
    所述基站向所述终端发送系统信息块SIB信息或无线资源控制协议RRC信令，其中，所述SIB信息或所述RRC信令中携带所述对应关系。
  10. 一种传输数据包的方法，其特征在于，包括：
    基站为终端调度无线资源，所述无线资源包括半静态调度SPS无线资源或动态调度无线资源，所述无线资源用于所述终端传输第一数据包；
    所述基站向所述终端发送指示信息，所述指示信息用于指示所述无线资源。
  11. 如权利要求10所述的方法，其特征在于，所述基站调度所述无线资 源之前，还包括：
    所述基站接收所述终端的目标参数，所述目标参数包括以下至少一项：
    所述N个第二数据包中最大数据包的大小、所述N个第二数据包中最小数据包的大小、所述N个第二数据包的平均大小，其中N为不小于零的正整数；
    其中，所述N个第二数据包为所述终端传输所述第一数据包之前的数据包中满足预设条件的数据包；
    所述基站根据所述目标参数，确定为所述终端调度的无线资源的大小。
  12. 如权利要求11所述的方法，其特征在于，还包括：
    所述基站接收到所述终端发送的资源请求消息，所述资源请求消息用于向基站请求无线资源；
    所述基站根据所述资源请求消息，向所述终端发送无线资源指示，其中，所述无线资源指示用于指示所述基站收到所述资源请求消息后为所述终端调度的无线资源。
  13. 如权利要求11至12任一所述的方法，其特征在于，包括：所述基站确定的无线资源为用于V2X通信的无线资源，所述第一数据包为V2X数据包。
  14. 一种V2X通信的设备，其特征在于，包括：
    处理单元，用于获取V2X数据包的优先级与V2X通信参数取值范围的对应关系，并根据所述V2X数据包的优先级以及所述对应关系，确定所述V2X数据包的优先级对应的V2X通信参数取值范围，并从确定的V2X通信参数取值范围中选择一个V2X通信参数值，所述V2X通信参数包括以下参数中的至少一个：调制与编码策略MCS、传输次数、传输功率和所占用的资源块RB的个数；
    收发单元，用于根据选择的V2X通信参数值，在无线资源上传输V2X数据包。
  15. 如权利要求14所述的设备，其特征在于，所述处理单元获取所述对 应关系，具体用于：
    通过所述收发单元接收的由基站发送的系统信息块SIB信息或无线资源控制协议RRC信令中获取所述对应关系，其中，所述SIB信息或所述RRC信令中携带所述对应关系；或者
    获取预先配置的对应关系。
  16. 一种传输数据包的设备，其特征在于，包括：
    接收单元，用于从基站接收指示信息，所述指示信息用于指示所述基站为终端调度的无线资源，所述无线资源包括半静态调度SPS无线资源或动态调度无线资源；
    发送单元，用于在所述无线资源上，传输第一数据包。
  17. 如权利要求16所述的设备，其特征在于，所述设备中的处理单元，用于，
    在所述接收单元接收所述基站调度的所述无线资源之前，从传输所述第一数据包之前的数据包中，确定满足预设条件的N个第二数据包，并根据所述N个第二数据包，确定目标参数，以使得所述基站根据所述目标参数，确定所述基站调度的无线资源的大小，N为不小于零的正整数；
    所述目标参数包括以下至少一项：
    所述N个第二数据包中最大数据包的大小、所述N个第二数据包中最小数据包的大小、所述N个第二数据包的平均大小；
    所述发送单元，还用于向所述基站发送所述目标参数。
  18. 如权利要求16所述的设备，其特征在于，所述处理单元，还用于：
    在所述接收单元接收所述基站调度的无线资源之后，所述发送单元传输所述第一数据包之前，确定所述基站调度的无线资源大小能够容纳所述第一数据包。
  19. 如权利要求18所述的设备，其特征在于，所述发送单元，还用于：
    若所述处理单元确定所述基站调度的无线资源大小不能容纳所述第一数据包，则向所述基站发送资源请求消息，所述资源请求信息用于向所述基站 请求无线资源。
  20. 如权利要求16至19任一所述的设备，其特征在于，所述基站调度的无线资源为用于V2X通信的无线资源，所述第一数据包为V2X数据包。
  21. 一种V2X通信的基站，其特征在于，包括：
    处理单元，用于确定V2X数据包的优先级与V2X通信参数取值范围的对应关系，所述V2X通信参数包括以下参数中的至少一个：调制与编码策略MCS、传输次数、传输功率和所占用的资源块RB的个数；
    收发单元，用于向终端发送所述对应关系。
  22. 如权利要求21所述的基站，其特征在于，所述收发单元向所述终端发送所述对应关系，具体用于：
    向所述终端发送系统信息块SIB信息或无线资源控制协议RRC信令，其中，所述SIB信息或所述RRC信令中携带所述对应关系。
  23. 一种传输数据包的基站，其特征在于，包括：
    处理单元，用于为终端调度无线资源，所述无线资源包括半静态调度SPS无线资源或动态调度无线资源，所述无线资源用于所述终端传输第一数据包；
    收发单元，用于向所述终端发送指示信息，所述指示信息用于指示所述无线资源。
  24. 如权利要求23所述的基站，其特征在于，所述收发单元，还用于：
    在所述处理单元调度所述无线资源之前，接收所述终端的目标参数，所述目标参数包括以下至少一项：
    所述N个第二数据包中最大数据包的大小、所述N个第二数据包中最小数据包的大小、所述N个第二数据包的平均大小，其中N为不小于零的正整数；
    其中，所述N个第二数据包为所述终端传输所述第一数据包之前的数据包中满足预设条件的数据包；
    所述处理单元，还用于根据所述目标参数，确定为所述终端调度的无线资源的大小。
  25. 如权利要求23所述的基站，其特征在于，所述收发单元，还用于：
    接收到所述终端发送的资源请求消息，所述资源请求消息用于向基站请求无线资源；并根据所述资源请求消息，向所述终端发送无线资源指示，其中，所述无线资源指示用于指示所述基站收到所述资源请求消息后为所述终端调度的无线资源。
  26. 如权利要求23至25任一所述的基站，其特征在于，包括：所述基站确定的无线资源为用于V2X通信的无线资源，所述第一数据包为V2X数据包。
  27. 一种V2X通信系统，其特征在于，包括：如权利要求14或15任一所述的设备，和如权利要求21或22任一所述的基站。
  28. 一种传输数据包的通信系统，其特征在于，包括如权利要求16至20任一所述的设备，和如权利要求23至26任一所述的基站。
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JPWO2020003531A1 (ja) * 2018-06-29 2021-07-15 株式会社Ｎｔｔドコモ 通信装置、通信方法、及びシステム
JP7344870B2 (ja) 2018-06-29 2023-09-14 株式会社Ｎｔｔドコモ 通信装置、通信方法、及びシステム
CN109076376A (zh) * 2018-07-20 2018-12-21 北京小米移动软件有限公司 Mcs等级的确定方法、装置、终端及存储介质
CN109076376B (zh) * 2018-07-20 2022-04-22 北京小米移动软件有限公司 Mcs等级的确定方法、装置、终端及存储介质
WO2020054812A1 (en) * 2018-09-13 2020-03-19 Sharp Kabushiki Kaisha Selection of radio access technologies for v2x messages
CN111132069A (zh) * 2018-10-30 2020-05-08 展讯通信（上海）有限公司 一种数据传输方法及装置、存储介质、终端
CN111132069B (zh) * 2018-10-30 2024-02-06 展讯通信（上海）有限公司 一种数据传输方法及装置、存储介质、终端
CN112055385A (zh) * 2019-06-05 2020-12-08 上海朗帛通信技术有限公司 一种被用于无线通信的节点中的方法和装置
CN112055385B (zh) * 2019-06-05 2022-03-29 上海朗帛通信技术有限公司 一种被用于无线通信的节点中的方法和装置
WO2021159592A1 (zh) * 2020-02-14 2021-08-19 惠州Tcl移动通信有限公司 数据传输方法、装置及存储介质

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US10993093B2 (en) 2021-04-27
JP2019530335A (ja) 2019-10-17
CN109716845A (zh) 2019-05-03
CN109716845B (zh) 2021-12-24
EP3506706B1 (en) 2023-03-15
JP6741283B2 (ja) 2020-08-19
US20190222982A1 (en) 2019-07-18
EP3506706A1 (en) 2019-07-03
BR112019006383A2 (pt) 2019-06-25

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