WO2020029026A1 - 车联网同步方法及装置 - Google Patents

车联网同步方法及装置 Download PDF

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Publication number
WO2020029026A1
WO2020029026A1 PCT/CN2018/099012 CN2018099012W WO2020029026A1 WO 2020029026 A1 WO2020029026 A1 WO 2020029026A1 CN 2018099012 W CN2018099012 W CN 2018099012W WO 2020029026 A1 WO2020029026 A1 WO 2020029026A1
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WIPO (PCT)
Prior art keywords
signal
type
synchronization signal
synchronization
vehicle
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PCT/CN2018/099012
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English (en)
French (fr)
Inventor
赵群
刘洋
Original Assignee
北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN201880001650.4A priority Critical patent/CN109155907B/zh
Priority to US17/266,358 priority patent/US11910335B2/en
Priority to PCT/CN2018/099012 priority patent/WO2020029026A1/zh
Priority to EP18929426.7A priority patent/EP3833119A4/en
Publication of WO2020029026A1 publication Critical patent/WO2020029026A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/002—Mutual synchronization
    • 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]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
    • G01S19/256—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to timing, e.g. time of week, code phase, timing offset
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
    • H04W56/006—Synchronisation arrangements determining timing error of reception due to propagation delay using known positions of transmitter and receiver
    • 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
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • 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
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a method and a device for synchronizing the Internet of Vehicles.
  • V2X Vehicle and Everything
  • V2V Vehicle and Vehicle
  • V2I Vehicle and Infrastructure
  • V2P Vehicle and Pedestrian
  • the existing cellular communication technology can be used to support V2X communication, that is, the communication link between the terminal device and the base station in the original cellular network is used for communication; it can also be performed directly through the direct link between the devices. Communication.
  • LTE Long Term Evolution, Long Term Evolution
  • V2X communication can only support some basic security V2X applications. Therefore, in order to support new V2X services and meet new V2X technical requirements, New Radio (NR) V2X communications need to provide higher communication rates, shorter communication delays, and more reliable communication quality.
  • NR New Radio
  • the embodiments of the present disclosure provide a method and device for synchronizing the Internet of Vehicles.
  • a method for synchronizing a connected vehicle is provided.
  • the method is used for a first terminal, and the first terminal is capable of supporting both a first type of connected vehicle direct communication and a second type of connected vehicle Communication, the method includes:
  • the first synchronization signal is a synchronization signal of the first type of vehicle networking direct connection communication and / or the second type of vehicle networking direct connection communication;
  • the at least one first synchronization signal includes at least one of the following:
  • a second synchronization signal which is used to characterize a synchronization signal sent by a global navigation satellite system GNSS; and / or
  • a third synchronization signal which is used to characterize a downlink synchronization signal sent by a first type base station; and / or
  • a fourth synchronization signal where the fourth synchronization signal is used to characterize the first type of vehicle-to-vehicle direct-connection synchronization signal sent by the second terminal; and / or
  • a fifth synchronization signal where the fifth synchronization signal is used to characterize a downlink synchronization signal sent by a second type base station;
  • a sixth synchronization signal where the fifth synchronization signal is used to characterize a second type of vehicle-to-vehicle direct-connection synchronization signal sent by a third terminal.
  • the determining a synchronization reference signal used for the second type of car networking direct connection communication according to the first synchronization signal includes:
  • the synchronization reference signal is determined from the first synchronization signals according to a first setting rule.
  • the first setting rule includes a specified priority order corresponding to the specified synchronization signal
  • the determining the synchronization reference signal from the first synchronization signal according to a first setting rule includes:
  • the first synchronization signal corresponding to the highest priority in the first priority order is determined as the synchronization reference signal.
  • the first setting rule includes a first setting priority order and a second setting priority order corresponding to the specified synchronization signal, and a first setting corresponding to the first setting priority order.
  • a second setting condition corresponding to the condition and the second setting priority order;
  • the determining the synchronization reference signal from the first synchronization signal according to a first setting rule includes:
  • the first synchronization signal corresponding to a stage is determined as the synchronization reference signal
  • the first synchronization signal corresponding to a stage is determined as the synchronization reference signal.
  • the first setting condition includes that the first terminal is located outside the coverage area of the base station; or the first terminal is located within the coverage area of the base station, and the base station instructs the first terminal through downlink control signaling.
  • a terminal uses the first set priority order;
  • the second setting condition includes that the first terminal is located within a coverage area of a base station, and the base station instructs the first terminal to use the second set priority order through downlink control signaling.
  • the performing the second type of car networking direct connection communication according to the synchronization reference signal includes:
  • the method further includes:
  • a first designated signal for broadcast transmission is determined according to a second setting rule, the designated signal includes a first signal and / or a second signal, and the first signal includes a synchronization signal and / or a broadcast of a first type of connected vehicle Message, the second signal includes a synchronization signal and / or a broadcast message of a second type of connected vehicle;
  • the second setting rule is pre-configured by the first terminal or instructed by the base station to be used by the first terminal through downlink control signaling.
  • the method further includes:
  • the second designated signal including a third signal and / or a fourth signal, the third signal including a synchronization signal and / or a broadcast message compatible with the first type of vehicle networking
  • the second type of vehicle networking synchronization signal and / or broadcast message, the fourth signal includes a second type of vehicle networking synchronization signal and / or broadcast message that is not compatible with the first type of vehicle networking synchronization signal and / or broadcast message.
  • the specified time-frequency resource includes a first time-frequency resource subset and a second time-frequency resource subset; wherein the first time-frequency resource subset is a time-frequency for transmitting the third signal Resources, the second time-frequency resource subset is time-frequency resources for transmitting the fourth signal;
  • the broadcasting and transmitting the second designated signal on the designated time-frequency resource includes:
  • the second designated signal includes a broadcast message of a second type of connected vehicle
  • the performing broadcast transmission on the second designated signal by using the first time-frequency resource subset and the second time-frequency resource subset includes:
  • the method before the using the first time-frequency resource subset and the second time-frequency resource subset to broadcast the second designated signal, the method further includes:
  • Determining the type of connected vehicle to which the first device belongs the type of connected vehicle including the first type of connected vehicle or the second type of connected vehicle;
  • the designated position is located in a reserved bit designated in the PSBCH to indicate the type of connected vehicle.
  • the first type is an LTE cellular network
  • the second type is an NR cellular network.
  • a vehicle networking synchronization device is provided.
  • the device is used for a first terminal, and the first terminal can simultaneously support the first type of vehicle networking direct connection communication and the second type of vehicle networking direct connection.
  • Communication the device includes:
  • a receiving module configured to receive at least one first synchronization signal, where the first synchronization signal is a synchronization signal of a first type of vehicle networking direct connection communication and / or a second type of vehicle networking direct connection communication;
  • a first determining module configured to determine, according to the first synchronization signal, a synchronization reference signal for a second type of connected vehicle-to-vehicle direct connection communication
  • the processing module is configured to perform a second-type connected vehicle-to-vehicle direct connection communication according to the synchronization reference signal.
  • the at least one first synchronization signal includes at least one of the following:
  • a second synchronization signal which is used to characterize a synchronization signal sent by a global navigation satellite system GNSS; and / or
  • a third synchronization signal which is used to characterize a downlink synchronization signal sent by a first type base station; and / or
  • a fourth synchronization signal where the fourth synchronization signal is used to characterize the first type of vehicle-to-vehicle direct-connection synchronization signal sent by the second terminal; and / or
  • a fifth synchronization signal where the fifth synchronization signal is used to characterize a downlink synchronization signal sent by a second type base station;
  • a sixth synchronization signal where the fifth synchronization signal is used to characterize a second type of vehicle-to-vehicle direct-connection synchronization signal sent by a third terminal.
  • the first determining module includes:
  • a first determining submodule configured to determine the first synchronization signal as the synchronization reference signal if the number of the first synchronization signals is one;
  • the second determining sub-module is configured to determine the synchronization reference signal from the first synchronization signal according to a first setting rule if the number of the first synchronization signals is multiple.
  • the first setting rule includes a specified priority order corresponding to a specified synchronization signal; and the second determination submodule includes:
  • a third determining submodule configured to determine a first priority order corresponding to the first synchronization signal according to the specified priority order
  • a fourth determining sub-module is configured to determine the first synchronization signal corresponding to the highest priority in the first priority order as the synchronization reference signal.
  • the first setting rule includes a first setting priority order and a second setting priority order corresponding to the specified synchronization signal, and a first setting corresponding to the first setting priority order.
  • a second setting condition corresponding to the condition and the second setting priority order; the second determining submodule includes:
  • a fifth determining submodule is configured to, if it is detected that the first setting condition is satisfied, determine a second priority order corresponding to the first synchronization signal according to the first set priority order, and The first synchronization signal corresponding to the highest priority in the second priority order is determined as the synchronization reference signal;
  • the sixth determining submodule is configured to, if it is detected that the second setting condition is satisfied, determine a third priority order corresponding to the first synchronization signal according to the second setting priority order, and The first synchronization signal corresponding to the highest priority in the third priority order is determined as the synchronization reference signal.
  • the first setting condition includes that the first terminal is located outside the coverage area of the base station; or the first terminal is located within the coverage area of the base station, and the base station instructs the A terminal uses the first set priority order;
  • the second setting condition includes that the first terminal is located within a coverage area of a base station, and the base station instructs the first terminal to use the second set priority order through downlink control signaling.
  • the processing module includes:
  • the processing sub-module is configured to send control signaling and / or data of the second type of vehicle networking according to the synchronization reference signal.
  • the apparatus further includes:
  • the second determining module is configured to determine a first designated signal for broadcast transmission according to a second setting rule, the designated signal includes a first signal and / or a second signal, and the first signal includes a first type vehicle Networked synchronization signal and / or broadcast message, the second signal includes a second type of vehicle networked synchronization signal and / or broadcast message;
  • the first transmission module is configured to perform broadcast transmission on the first designated signal.
  • the second setting rule is pre-configured by the first terminal or instructed by the base station to be used by the first terminal through downlink control signaling.
  • the apparatus further includes:
  • a third determining module configured to determine a second designated signal for broadcast transmission, the second designated signal includes a third signal and / or a fourth signal, and the third signal includes synchronization with a first type of vehicle networking Signals and / or broadcast messages compatible with a second type of vehicle networking synchronization signal and / or broadcast message, the fourth signal includes a second type of vehicle networking that is incompatible with the first type of vehicle networking synchronization signal and / or broadcast message Synchronization signal and / or broadcast message;
  • the second transmission module is configured to perform broadcast transmission on the second specified signal on a specified time-frequency resource.
  • the specified time-frequency resource includes a first time-frequency resource subset and a second time-frequency resource subset; wherein the first time-frequency resource subset is a time-frequency for transmitting the third signal Resources, the second time-frequency resource subset is time-frequency resources for transmitting the fourth signal;
  • the second transmission module includes:
  • a first transmission sub-module is configured to perform broadcast transmission on the second designated signal by using the first time-frequency resource subset and the second time-frequency resource subset.
  • the second designated signal includes a broadcast message of a second type of connected vehicle;
  • the first transmission submodule includes:
  • a division sub-module configured to divide the broadcast message of the second type of connected vehicle into a first information subset and a second information subset; the first information subset is used for Information carried in a physical direct broadcast channel PSBCH in a resource subset, and the second information subset is used to characterize information that cannot be carried in the PSBCH in the first time-frequency resource subset;
  • a second transmission sub-module configured to perform broadcast transmission on the first information subset using the first time-frequency resource subset
  • a third transmission sub-module is configured to perform broadcast transmission on the second information subset using the second time-frequency resource subset.
  • the second transmission module further includes:
  • a seventh determining submodule configured to determine a type of connected vehicle to which the first device belongs, the type of connected vehicle including the first type of connected vehicle or the second type of connected vehicle;
  • a generating sub-module configured to generate instruction information, the instruction information is used to characterize the type of connected vehicle;
  • the adding sub-module is configured to add the indication information to a specified position in a PSBCH within the first time-frequency resource subset.
  • the designated position is located in a reserved bit designated in the PSBCH to indicate the type of connected vehicle.
  • the first type is an LTE cellular network
  • the second type is an NR cellular network.
  • a non-transitory computer-readable storage medium stores a computer program, wherein the computer program is configured to execute the Internet of Vehicles described in the first aspect. Synchronization method.
  • a vehicle networking synchronization device is provided.
  • the device is used for a first terminal, and the first terminal can simultaneously support the first type of vehicle networking direct communication and the second type of vehicle networking direct communication.
  • Communication the device includes:
  • Memory for storing processor-executable instructions
  • the processor is configured to:
  • the first synchronization signal is a synchronization signal of the first type of vehicle networking direct connection communication and / or the second type of vehicle networking direct connection communication;
  • the first terminal in the present disclosure is receiving at least one first synchronization signal
  • the first synchronization signal is a synchronization signal of the first type of vehicle networking direct connection communication and / or the second type of vehicle networking direct connection communication.
  • the synchronization signal determines a synchronization reference signal for the second type of connected vehicle-to-vehicle direct communication, and performs the second type of connected vehicle-to-vehicle direct communication according to the synchronization reference signal, thereby realizing the use of the synchronization signal of one type of network for another type of network communication
  • the synchronization reference signal also improves the efficiency of the IoV synchronization.
  • Fig. 1 is a flow chart showing a method for synchronizing a car network according to an exemplary embodiment
  • Fig. 2 is an application scenario diagram of a method for synchronizing a connected vehicle network according to an exemplary embodiment
  • Fig. 3 is a flow chart showing another method for synchronizing a connected vehicle according to an exemplary embodiment
  • Fig. 4 is a flow chart showing another method for synchronizing a connected vehicle according to an exemplary embodiment
  • Fig. 5 is a flow chart showing another method for synchronizing a car network according to an exemplary embodiment
  • Fig. 6 is a schematic diagram showing a subset of time-frequency resources according to an exemplary embodiment
  • Fig. 7 is a block diagram of a transmission configuration apparatus according to an exemplary embodiment
  • Fig. 8 is a block diagram showing another transmission configuration apparatus according to an exemplary embodiment
  • Fig. 9 is a block diagram illustrating another transmission configuration apparatus according to an exemplary embodiment.
  • Fig. 10 is a block diagram showing another transmission configuration apparatus according to an exemplary embodiment
  • Fig. 11 is a block diagram showing another transmission configuration apparatus according to an exemplary embodiment
  • Fig. 12 is a block diagram showing another transmission configuration apparatus according to an exemplary embodiment
  • Fig. 13 is a block diagram showing another transmission configuration apparatus according to an exemplary embodiment
  • Fig. 14 is a block diagram showing another transmission configuration apparatus according to an exemplary embodiment
  • Fig. 15 is a block diagram showing another transmission configuration apparatus according to an exemplary embodiment
  • Fig. 16 is a block diagram showing another transmission configuration apparatus according to an exemplary embodiment
  • Fig. 17 is a schematic structural diagram of a transmission configuration apparatus according to an exemplary embodiment.
  • the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • the indication information may also be referred to as the second information, and similarly, the second information may also be referred to as the indication information.
  • the word "if” as used herein can be interpreted as “at” or "when” or "in response to determination”.
  • FIG. 1 is a flowchart illustrating a method for synchronizing a vehicle network according to an exemplary embodiment
  • FIG. 2 is a diagram illustrating an application scenario of a method for synchronizing a vehicle network according to an exemplary embodiment
  • FIG. At the first terminal the first terminal can support both the first type of car networking direct connection communication and the second type of car networking direct connection communication, for example: the first type is an LTE cellular network and the second type is an NR cellular network;
  • the method for synchronizing the connected vehicle may include the following steps 110-130:
  • step 110 at least one first synchronization signal is received, and the first synchronization signal is a synchronization signal of the first type of vehicle networking direct connection communication and / or the second type of vehicle networking direct connection communication.
  • the first synchronization signal is used to represent a synchronization signal received by the first terminal.
  • the first synchronization signal may be a synchronization signal sent by GNSS (Global Navigation Satellite System), such as a GPS (Global Positioning System) or a synchronization signal sent by Beidou; it may also be sent by a base station.
  • Downlink synchronization signals such as: downlink synchronization signals sent by LTE cellular network base stations or downlink synchronization signals sent by NR cellular network base stations; or direct synchronization signals broadcast by other terminals, such as: LTE cellular network vehicle networking sent by other terminals Direct synchronization signal or NR cellular network car network direct connection synchronization signal.
  • At least one of the first synchronization signals in step 110 may include, but is not limited to, at least one of the following:
  • (1-1) a second synchronization signal, which is used to characterize a synchronization signal sent by a global navigation satellite system GNSS; and / or
  • a third synchronization signal which is used to characterize a downlink synchronization signal sent by a first type base station;
  • a fourth synchronization signal is used to characterize the first type of vehicle-to-vehicle direct-connection synchronization signal sent by the second terminal; and / or
  • a fifth synchronization signal which is used to characterize a downlink synchronization signal sent by a second type base station;
  • a sixth synchronization signal where the fifth synchronization signal is used to characterize a second type of vehicle-to-vehicle direct-connection synchronization signal sent by a third terminal.
  • the synchronization signal sent by the GNSS in the above (1-1) can be used as the synchronization signal of the first type of vehicle networking, or the synchronization signal of the first type of vehicle networking; the downlink synchronization sent by the first type base station in (1-2) above The signal may be used as a synchronization signal of the first type of vehicle networking; the downlink synchronization signal sent by the second type base station in the above (1-4) may be used as a synchronization signal of the second type of vehicle networking.
  • the first type may be an LTE cellular network
  • the second type may be an NR cellular network.
  • a synchronization reference signal used for the second type of IoV direct connection communication is determined according to the first synchronization signal.
  • the synchronization reference signal may be one of the first synchronization signals.
  • a corresponding determination manner may be adopted according to the number of the first synchronization signals. For a specific implementation process, refer to the embodiment shown in FIG. 3.
  • step 130 the second type of vehicle-to-vehicle direct connection communication is performed according to the synchronization reference signal.
  • frequency synchronization and time synchronization can be performed according to a synchronization reference signal.
  • the method may include:
  • the synchronization reference signal is a downlink synchronization signal sent by the LTE base station.
  • the downlink synchronization signal can be used as a synchronization reference signal for sending NR V2X control signaling and / or data, and the NR V2X control signaling and / Or data.
  • the synchronization reference signal is an LTE V2X direct connection synchronization signal sent by an LTE V2X terminal.
  • the LTE V2X direct connection synchronization signal can be used as a synchronization reference signal for sending NR V2X control signaling and / or data, and according to the synchronization reference signal Send NR V2X control signaling and / or data.
  • the first terminal receives multiple first synchronization signals, which are: a synchronization signal sent by a GNSS, a downlink synchronization signal sent by a base station, and an LTE V2X direct connection sent by a second terminal.
  • a synchronization signal, and an NR V2X direct connection synchronization signal sent by a third terminal so that the first terminal can determine a synchronization reference signal for the second type of connected vehicle (for example, NR V2X) direct connection communication based on these first synchronization signals, and Direct communication of the second type of vehicle networking is performed according to the synchronous reference signal.
  • the second type of connected vehicle for example, NR V2X
  • direct connection communication may be performed according to the synchronization signal sent by the GNSS.
  • the first synchronization signal upon receiving at least one first synchronization signal, is a synchronization signal of the first type of vehicle networking direct connection communication and / or the second type of vehicle networking direct connection communication, and may be based on the first synchronization
  • the signal determines a synchronization reference signal for the second type of connected vehicle-to-vehicle direct communication, and performs the second type of connected vehicle-to-vehicle direct communication according to the synchronization reference signal, thereby realizing the use of a synchronization signal of one type of network to provide synchronization for another type of network communication
  • the reference signal also improves the efficiency of IoV synchronization.
  • Fig. 3 is a flow chart showing another method for synchronizing the Internet of Vehicles according to an exemplary embodiment.
  • the method for synchronizing the Internet of Vehicles can be used for a first terminal, and is based on the method shown in Fig. 1, and executes step 120.
  • the following steps 310-320 may be included:
  • step 310 if the number of the first synchronization signals is one, the first synchronization signal is determined as a synchronization reference signal.
  • step 320 if the number of the first synchronization signals is multiple, a synchronization reference signal is determined from the first synchronization signals according to a first setting rule.
  • the first setting rule may be pre-configured by the first terminal; or may be instructed by the base station to be used by the first terminal through downlink control signaling.
  • the synchronization reference signal from the first synchronization signal according to the first setting rule may include but is not limited to the following implementations:
  • the first setting rule includes a specified priority order corresponding to a specified synchronization signal.
  • step 320 when step 320 is performed, the method may include:
  • (3-1) determining a first priority order corresponding to the first synchronization signal according to the specified priority order
  • the influence of the synchronization reference signal and / or the synchronization source selected by the user terminal that sends the direct synchronization signal may also be considered.
  • the first setting rule includes a first setting priority order and a second setting priority order corresponding to the specified synchronization signal, and a first setting condition corresponding to the first setting priority order.
  • the method may include:
  • (4-1) if it is detected that the first setting condition is satisfied, determine a second priority order corresponding to the first synchronization signal according to the first set priority order, and prioritize the second priority
  • the first synchronization signal corresponding to the highest priority in the rank order is determined as the synchronization reference signal
  • the first setting condition may include that the first terminal is located outside the coverage area of the base station; or the first terminal is located within the coverage area of the base station, and the base station instructs the base station through downlink control signaling.
  • a first terminal uses the first set priority order;
  • the second setting condition includes that the first terminal is located within a coverage area of a base station, and the base station instructs the first terminal to use the downlink control signaling
  • the second set priority order that is, when it is outside the coverage area of the base station, the second priority order can be used; when it is within the coverage area of the base station, it is necessary to decide whether to use the second priority order or the first priority according to the downlink control signaling instruction of the base station side.
  • Three priority order is, when it is outside the coverage area of the base station, the second priority order can be used; when it is within the coverage area of the base station, it is necessary to decide whether to use the second priority order or the first priority according to the downlink control signaling instruction of the base station side.
  • the second priority order is: Synchronization signal sent by GNSS> NR cellular network car network direct connection synchronization signal> LTE cellular network car network direct connection synchronization signal> Downlink synchronization signal sent by the base station;
  • the third priority order is: base station Downlink synchronization signal sent> Synchronization signal sent by GNSS> NR cellular network car network direct connection synchronization signal> LTE cellular network car network direct connection synchronization signal.
  • the first synchronization signal can be directly determined as the synchronization reference signal; if the number of the first synchronization signals is multiple, the first synchronization signal can be determined from the first A synchronization reference signal is determined in a synchronization signal, thereby improving the accuracy of determining the synchronization reference signal.
  • Fig. 4 is a flow chart showing another method for synchronizing the Internet of Vehicles according to an exemplary embodiment.
  • the method for synchronizing the Internet of Vehicles can be used for a first terminal and is based on the method shown in Fig. 1, as shown in Fig. 4 It is shown that the method for synchronizing the connected vehicle may further include the following steps 410-420:
  • a first designated signal for broadcast transmission is determined according to a second setting rule.
  • the designated signal may include a first signal and / or a second signal, the first signal includes a synchronization signal and / or a broadcast message of the first type of vehicle networking, and the second signal includes a synchronization of the second type of vehicle networking. Signals and / or broadcast messages.
  • the second setting rule in step 410 may be pre-configured by the first terminal or instructed by the base station to be used by the first terminal through downlink control signaling.
  • the second setting rule may specify to send a synchronization signal and / or a broadcast message of the first type of Internet of Vehicles (for example, LTE V2X); it may also specify to send a synchronization signal of the second type of Internet of Vehicles (for example, NR V2X) and It is also possible to specify to send the synchronization signal and / or broadcast message of the first type of connected vehicle (for example, LTE V2X), and also send the synchronization signal and / or broadcast message of the second type of connected vehicle (for example, NR V2X). .
  • step 420 the first designated signal is broadcast-transmitted.
  • the first terminal when the first terminal can simultaneously support the first type (for example, LTE V2X) car networking direct connection communication and the second type of car networking (for example, NR V2X) direct connection communication, the first terminal may follow
  • the second setting rule only sends synchronization signals and / or broadcast messages of the first type of connected vehicle (for example, LTE V2X); it may also send only the synchronization of the second type of connected vehicle (for example, NR V2X) according to the second setting rule.
  • Signal and / or broadcast message it is also possible to send both the synchronization signal and / or broadcast message of the first type of connected vehicle (for example, LTE V2X) and the second type of connected vehicle (for example, NR V2X) Synchronization signal and / or broadcast message.
  • first type of connected vehicle for example, LTE V2X
  • second type of connected vehicle for example, NR V2X
  • the first specified signal for broadcast transmission can be determined according to the second setting rule, so that the first terminal can only send the synchronization of the first type of connected vehicle (for example, LTE V2X) according to the second setting rule.
  • Signal and / or broadcast message; or only the synchronization signal and / or broadcast message of the second type of connected vehicle (for example, NR V2X) can be sent according to the second setting rule; and the first type can also be sent according to the second setting rule
  • the synchronization signal and / or broadcast message of the Internet of Vehicles for example, LTE V2X
  • also sends the synchronization signal and / or broadcast message of the second type of Internet of Vehicles for example, NR V2X
  • Fig. 5 is a flow chart showing another method for synchronizing a car network according to an exemplary embodiment.
  • the method for synchronizing a car network can be used for a first terminal and is based on the method shown in Fig. 1, as shown in Fig. 5 It is shown that the method for synchronizing the connected vehicle may further include the following steps 510-520:
  • a second designated signal for broadcast transmission is determined.
  • the second specified signal may include a third signal and / or a fourth signal
  • the third signal includes a second type compatible with a synchronization signal and / or a broadcast message of the first type of connected vehicle (for example, LTE V2X).
  • the fourth signal includes a synchronization signal and / or broadcast message of a second type of vehicle that is not compatible with the first type of vehicle (e.g., LTE V2X) Networked (eg, NR V2X) synchronization signals and / or broadcast messages.
  • the compatibility may specify that the LTE V2X user equipment can correctly receive the NR V2X synchronization signal / broadcast message.
  • step 520 the second designated signal is broadcast-transmitted on the designated time-frequency resource.
  • the designated time-frequency resource is a time-frequency resource for transmitting a synchronization signal and / or a broadcast message of a second type of connected vehicle (for example, NR V2X).
  • a second type of connected vehicle for example, NR V2X
  • the specified time-frequency resource includes a first time-frequency resource subset and a second time-frequency resource subset; wherein the first time-frequency resource subset is used for transmitting the third signal Time-frequency resources, the second time-frequency resource subset is time-frequency resources for transmitting the fourth signal; when step 520 is performed, it may include:
  • the designated time-frequency resources include time-frequency resource subset 1 and time-frequency resource subset 2, the synchronization signals of the second type of connected vehicle (for example, NR V2X) transmitted on time-frequency resource subset 1 and / Or the broadcast message is the same as the first type of connected vehicle (for example, LTE V2X); the synchronization signal and / or the broadcast message of the second type of connected vehicle (for example, NR V2X) transmitted on the time-frequency resource subset 1
  • the types of connected vehicles (for example, LTE V2X) are different, such as: using different subcarrier intervals (30KHz or 60KHz), different encoding and decoding schemes (for example, Polar Codes), and the broadcast message contains different bit information Domain, etc.
  • the second designated signal when performing (5-1), it may include:
  • the first time-frequency resource subset is used to transmit synchronization signals of the first type of connected vehicle (for example, LTE V2X) and / or broadcast messages of a second type of connected vehicle (for example, NR V2X) and / Or broadcast message; the second subset of time-frequency resources is used to transmit synchronization signals of the first type of connected vehicle (for example, LTE V2X) and / or synchronization of second type of connected vehicle (for example, NR V2X) that is not compatible with broadcast messages Signals and / or broadcast messages.
  • the first type of connected vehicle for example, LTE V2X
  • NR V2X synchronization of second type of connected vehicle
  • the broadcast message of the second type of connected vehicle may carry a SCS (Subcarrier) used when the first terminal sends control signaling and / or data of the second type of connected vehicle (for example, NR V2X) Spacing, subcarrier spacing) and resource pools.
  • SCS Subcarrier
  • the broadcast messages on the second subset of the time-frequency resources may also need to be received to obtain a complete broadcast message.
  • the method may further include:
  • (7-1) determining the type of connected vehicle to which the first device belongs, the type of connected vehicle including the first type of connected vehicle (for example, LTE V2X) or the second type of connected vehicle (for example, NR V2X);
  • the type of connected vehicle to which the first device belongs may be the first type of connected vehicle (for example, LTE V2X); it may also be the second type of connected vehicle (for example, NR V2X).
  • the specified position in (7-3) above may be a reserved bit designated in the PSBCH to indicate the type of connected vehicle. That is, reserved bits in the PSBCH in the first subset of time-frequency resources may be used to indicate whether the sending terminal of the synchronization signal and / or broadcast message is an NR V2X terminal or an LTE V2X terminal.
  • the broadcast message transmitted in the PSBCH in the first time-frequency resource subset includes 27 reserved bits. You can use 1 bit to indicate whether the sending terminal is an NR V2X terminal or a V2X terminal. LTE V2X terminal.
  • the receiving terminal of the synchronization signal and / or broadcast message can determine whether the sending terminal is an NR V2X terminal or an LTE V2X terminal according to a specified position in the PSBCH within the first time-frequency resource subset, and then can determine whether to receive the second time Broadcast messages on a subset of frequency resources.
  • second time-frequency resource sub- It is used to transmit synchronization signals and / or broadcast messages of the second type of Internet of Vehicles (for example, NR V2X) which are incompatible with synchronization signals and / or broadcast messages of the first type of vehicle networking (for example, LTE V2X), thereby improving The reliability of the second type of connected vehicle (for example, NR V2X) direct connection communication.
  • a second type of vehicle networking eg, NR V2X
  • first type of vehicle networking for example, LTE V2X
  • second time-frequency resource sub- It is used to transmit synchronization signals and / or broadcast messages of the second type of Internet of Vehicles (for example, NR V2X) which are incompatible with synchronization signals and / or broadcast messages of the first type of vehicle networking (for example, LTE V2X), thereby improving The reliability of the second type of connected vehicle (for example, NR V2X) direct connection communication.
  • the present disclosure also provides an embodiment of the IoV synchronization device.
  • Fig. 7 is a block diagram of a vehicle networking synchronization device according to an exemplary embodiment.
  • the vehicle networking synchronization device can be used for a first terminal, and the first terminal can simultaneously support the first type of vehicle networking direct connection communication and the first terminal.
  • Two types of vehicle networking are directly connected, for example: the first type is an LTE cellular network, and the second type is an NR cellular network, and is used to perform the vehicle networking synchronization method shown in FIG. 1; as shown in FIG. 7, the vehicle networking synchronization device Can include:
  • the receiving module 71 is configured to receive at least one first synchronization signal, where the first synchronization signal is a synchronization signal of the first type of vehicle networking direct connection communication and / or the second type of vehicle networking direct connection communication;
  • a first determining module 72 configured to determine, according to the first synchronization signal, a synchronization reference signal used for the second type of car networking direct connection communication;
  • the processing module 73 is configured to perform a second type of IoV direct connection communication according to the synchronization reference signal.
  • the first synchronization signal upon receiving at least one first synchronization signal, is a synchronization signal of the first type of vehicle networking direct connection communication and / or the second type of vehicle networking direct connection communication, and may be based on the first synchronization
  • the signal determines a synchronization reference signal for the second type of connected vehicle-to-vehicle direct communication, and performs the second type of connected vehicle-to-vehicle direct communication according to the synchronization reference signal, thereby realizing the use of a synchronization signal of one type of network to provide synchronization for another type of network communication
  • the reference signal also improves the efficiency of IoV synchronization.
  • the at least one first synchronization signal includes at least one of the following:
  • a second synchronization signal which is used to characterize a synchronization signal sent by a global navigation satellite system GNSS; and / or
  • a third synchronization signal which is used to characterize a downlink synchronization signal sent by a first type base station; and / or
  • a fourth synchronization signal where the fourth synchronization signal is used to characterize the first type of vehicle networking direct synchronization signal sent by the second terminal; and / or
  • a fifth synchronization signal where the fifth synchronization signal is used to characterize a downlink synchronization signal sent by a second type base station;
  • a sixth synchronization signal where the fifth synchronization signal is used to characterize a second type of vehicle-to-vehicle direct-connection synchronization signal sent by a third terminal.
  • the first determining module 72 includes:
  • a first determining sub-module 81 configured to determine the first synchronization signal as the synchronization reference signal if the number of the first synchronization signals is one;
  • the second determining sub-module 82 is configured to determine the synchronization reference signal from the first synchronization signal according to a first setting rule if the number of the first synchronization signals is multiple.
  • the first synchronization signal can be directly determined as the synchronization reference signal; if the number of the first synchronization signals is multiple, the first synchronization signal can be determined from the first A synchronization reference signal is determined in a synchronization signal, thereby improving the accuracy of determining the synchronization reference signal.
  • the first setting rule includes a specified priority order corresponding to a specified synchronization signal;
  • the second determination sub-module 82 includes :
  • a third determining sub-module 91 configured to determine a first priority order corresponding to the first synchronization signal according to the specified priority order
  • the fourth determining sub-module 92 is configured to determine the first synchronization signal corresponding to the highest priority in the first priority order as the synchronization reference signal.
  • the first setting rule includes a first setting priority order and a second setting priority corresponding to a specified synchronization signal.
  • the fifth determining submodule 101 is configured to, if it is detected that the first setting condition is satisfied, determine a second priority order corresponding to the first synchronization signal according to the first set priority order, and Determining the first synchronization signal corresponding to the highest priority in the second priority order as the synchronization reference signal;
  • the sixth determining sub-module 102 is configured to, if it is detected that the second setting condition is satisfied, determine a third priority order corresponding to the first synchronization signal according to the second setting priority order, and The first synchronization signal corresponding to the highest priority in the third priority order is determined as the synchronization reference signal.
  • the first setting condition includes that the first terminal is located outside a coverage area of a base station; or the first terminal is located within a coverage area of the base station, and Instructing, by the base station, the first terminal to use the first set priority order through downlink control signaling;
  • the second setting condition includes that the first terminal is located within a coverage area of a base station, and the base station instructs the first terminal to use the second set priority order through downlink control signaling.
  • the processing module 73 includes:
  • the processing sub-module 111 is configured to send control signaling and / or data of the second type of vehicle networking according to the synchronization reference signal.
  • the apparatus further includes:
  • the second determining module 121 is configured to determine a first designated signal for broadcast transmission according to a second setting rule, where the designated signal includes a first signal and / or a second signal, and the first signal includes a first type.
  • the first transmission module 122 is configured to perform broadcast transmission on the first designated signal.
  • the first specified signal for broadcast transmission can be determined according to the second setting rule, so that the first terminal can only send the synchronization of the first type of connected vehicle (for example, LTE V2X) according to the second setting rule.
  • Signal and / or broadcast message; or only the synchronization signal and / or broadcast message of the second type of connected vehicle (for example, NR V2X) can be sent according to the second setting rule; and the first type can also be sent according to the second setting rule
  • the synchronization signal and / or broadcast message of the Internet of Vehicles for example, LTE V2X
  • also sends the synchronization signal and / or broadcast message of the second type of Internet of Vehicles for example, NR V2X
  • the second setting rule is pre-configured by the first terminal or instructed by the base station to be used by the first terminal through downlink control signaling.
  • the apparatus further includes:
  • the third determining module 131 is configured to determine a second designated signal for broadcast transmission, the second designated signal includes a third signal and / or a fourth signal, and the third signal includes a network connected to the first type of vehicle.
  • the synchronization signal and / or broadcast message are compatible with the second type of vehicle-connected synchronization signal and / or broadcast message, and the fourth signal includes a second type of vehicle that is incompatible with the first type of vehicle-connected synchronization signal and / or broadcast message.
  • the second transmission module 132 is configured to perform broadcast transmission on the second specified signal on a specified time-frequency resource.
  • second time-frequency resource sub- It is used to transmit synchronization signals and / or broadcast messages of the second type of Internet of Vehicles (for example, NR V2X) which are incompatible with synchronization signals and / or broadcast messages of the first type of vehicle networking (for example, LTE V2X), thereby improving The reliability of the second type of connected vehicle (for example, NR V2X) direct connection communication.
  • a second type of vehicle networking eg, NR V2X
  • first type of vehicle networking for example, LTE V2X
  • second time-frequency resource sub- It is used to transmit synchronization signals and / or broadcast messages of the second type of Internet of Vehicles (for example, NR V2X) which are incompatible with synchronization signals and / or broadcast messages of the first type of vehicle networking (for example, LTE V2X), thereby improving The reliability of the second type of connected vehicle (for example, NR V2X) direct connection communication.
  • the specified time-frequency resource includes a first time-frequency resource subset and a second time-frequency resource subset;
  • a time-frequency resource subset is a time-frequency resource for transmitting the third signal, and the second time-frequency resource subset is a time-frequency resource for transmitting the fourth signal;
  • the second transmission module 132 includes:
  • the first transmission sub-module 141 is configured to perform broadcast transmission on the second designated signal by using the first time-frequency resource subset and the second time-frequency resource subset.
  • the second designated signal includes a broadcast message of a second type of connected vehicle;
  • the first transmission sub-module 141 includes:
  • Dividing sub-module 151 is configured to divide the broadcast messages of the second type of connected vehicle into a first information subset and a second information subset; the first information subset is used for Information carried in a physical direct-connected broadcast channel PSBCH in a subset of frequency resources, and the second information subset is used to characterize information that cannot be carried in the PSBCH in the first time-frequency resource subset;
  • a second transmission sub-module 152 configured to perform broadcast transmission on the first information subset using the first time-frequency resource subset
  • the third transmission sub-module 153 is configured to perform broadcast transmission on the second information subset using the second time-frequency resource subset.
  • the second transmission module 132 further includes:
  • a seventh determination sub-module 161 is configured to determine a type of connected vehicle to which the first device belongs, where the type of connected vehicle includes the first type of connected vehicle or the second type of connected vehicle;
  • a generating sub-module 162 configured to generate instruction information, where the instruction information is used to characterize the connected vehicle type
  • the adding sub-module 163 is configured to add the indication information to a specified position in the PSBCH within the first time-frequency resource subset.
  • the designated position is located in the PSBCH and is a reserved bit designated to indicate the type of connected vehicle.
  • the first type is an LTE cellular network
  • the second type is an NR cellular network.
  • the relevant part may refer to the description of the method embodiment.
  • the device embodiments described above are only schematic, in which the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, may be located in one Place, or can be distributed across multiple network elements. Some or all of the modules can be selected according to actual needs to achieve the objectives of the solution of the present disclosure. Those of ordinary skill in the art can understand and implement without creative efforts.
  • the present disclosure also provides a non-transitory computer-readable storage medium on which a computer program is stored, characterized in that the computer program is configured to execute any one of the above-mentioned FIG. 1 to FIG. 6. IoV synchronization method.
  • the present disclosure also provides a vehicle-to-vehicle synchronization device.
  • the device is used for a first terminal, and the first terminal is capable of supporting both the first type of vehicle-connected direct communication and the second type of vehicle-connected direct communication.
  • Memory for storing processor-executable instructions
  • the processor is configured to:
  • the first synchronization signal is a synchronization signal of the first type of vehicle networking direct connection communication and / or the second type of vehicle networking direct connection communication;
  • Fig. 17 is a schematic structural diagram of a vehicle networking synchronization device according to an exemplary embodiment. As shown in FIG. 17, according to an exemplary embodiment, a vehicle networking synchronization device 1700 is shown.
  • the device 1700 may be a computer, a mobile phone, a digital broadcasting terminal, a messaging device, a game console, a tablet device, a medical device, Fitness equipment, personal digital assistants and other terminals.
  • the device 1700 may include one or more of the following components: a processing component 1701, a memory 1702, a power component 1703, a multimedia component 1704, an audio component 1705, an input / output (I / O) interface 1706, a sensor component 1707, And communication component 1708.
  • the processing component 1701 generally controls the overall operation of the device 1700, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 1701 may include one or more processors 1709 to execute instructions to complete all or part of the steps of the method described above.
  • the processing component 1701 may include one or more modules to facilitate the interaction between the processing component 1701 and other components.
  • the processing component 1701 may include a multimedia module to facilitate the interaction between the multimedia component 1704 and the processing component 1701.
  • the memory 1702 is configured to store various types of data to support operation at the device 1700. Examples of such data include instructions for any application or method for operating on the device 1700, contact data, phone book data, messages, pictures, videos, and the like.
  • the memory 1702 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), Programming read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM Programming read-only memory
  • PROM programmable read-only memory
  • ROM read-only memory
  • magnetic memory flash memory
  • flash memory magnetic disk or optical disk.
  • the power supply component 1703 provides power to various components of the device 1700.
  • the power component 1703 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 1700.
  • the multimedia component 1704 includes a screen that provides an output interface between the device 1700 and a user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user.
  • the touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense a boundary of a touch or slide action, but also detect duration and pressure related to the touch or slide operation.
  • the multimedia component 1704 includes a front camera and / or a rear camera. When the device 1700 is in an operation mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 1705 is configured to output and / or input audio signals.
  • the audio component 1705 includes a microphone (MIC), which is configured to receive an external audio signal when the device 1700 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode.
  • the received audio signal may be further stored in the memory 1702 or transmitted via the communication component 1708.
  • the audio component 1705 further includes a speaker for outputting audio signals.
  • the I / O interface 1706 provides an interface between the processing component 1701 and a peripheral interface module.
  • the peripheral interface module may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
  • the sensor component 1707 includes one or more sensors for providing status evaluation of various aspects of the device 1700.
  • the sensor component 1707 can detect the on / off state of the device 1700 and the relative positioning of the components.
  • the component is the display and keypad of the device 1700.
  • the sensor component 1707 can also detect changes in the position of the device 1700 or a component of the device 1700 , The presence or absence of the user's contact with the device 1700, the orientation or acceleration / deceleration of the device 1700, and the temperature change of the device 1700.
  • the sensor assembly 1707 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
  • the sensor component 1707 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 1707 may further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • the communication component 1708 is configured to facilitate wired or wireless communication between the device 1700 and other devices.
  • the device 1700 can access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof.
  • the communication component 1708 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel.
  • the communication component 1708 further includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra wideband
  • Bluetooth Bluetooth
  • the apparatus 1700 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor, or other electronic component is implemented to perform the above method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor, or other electronic component is implemented to perform the above method.
  • a non-transitory computer-readable storage medium including instructions such as a memory 1702 including instructions, may be executed by the processor 1709 of the device 1700 to complete the foregoing method.
  • the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
  • the device 1700 when the instructions in the storage medium are executed by the processor, the device 1700 is able to execute any one of the IoV synchronization methods described above.

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Abstract

本公开提供一种车联网同步方法及装置，所述方法用于第一终端，所述第一终端能够同时支持第一类型车联网直连通信和第二类型车联网直连通信，所述方法包括：接收到至少一个第一同步信号，所述第一同步信号是第一类型车联网直连通信和/或第二类型车联网直连通信的同步信号；根据所述第一同步信号确定用于第二类型车联网直连通信的同步参考信号；根据所述同步参考信号进行第二类型车联网直连通信。因此，本公开可以实现利用一个类型网络的同步信号为另一个类型网络通信提供同步参考信号，还可以提高车联网同步的效率。

Description

车联网同步方法及装置 技术领域
本公开涉及通信技术领域，尤其涉及一种车联网同步方法及装置。
背景技术
在V2X(Vehicle to Everything，车联网)通信中，可以包括V2V(Vehicle to Vehicle，车车互联)通信、V2I(Vehicle to Infrastructure，车和路互联)通信和V2P(Vehicle to Pedestrian，车人互联)通信等。现有技术中，可以利用现有的蜂窝通信技术支持V2X通信，即利用原有蜂窝网络中终端设备和基站之间的通信链路进行通信；也可以直接通过设备之间的直连链路进行通信。但是，LTE(Long Term Evolution，长期演进)V2X通信中只能支持一些基础的安全方面的V2X应用。因此，为了支持新的V2X业务和满足新的V2X技术要求，NR(New Radio，新空口)V2X通信需要提供更高的通信速率，更短的通信延时，更可靠的通信质量。
发明内容
为克服相关技术中存在的问题，本公开实施例提供一种车联网同步方法及装置。
根据本公开实施例的第一方面，提供一种车联网同步方法，所述方法用于第一终端，所述第一终端能够同时支持第一类型车联网直连通信和第二类型车联网直连通信，所述方法包括：
接收到至少一个第一同步信号，所述第一同步信号是第一类型车联网直连通信和/或第二类型车联网直连通信的同步信号；
根据所述第一同步信号确定用于第二类型车联网直连通信的同步参考信号；
根据所述同步参考信号进行第二类型车联网直连通信。
可选地，所述至少一个第一同步信号中包括以下至少一项：
第二同步信号，所述第二同步信号用于表征全球导航卫星系统GNSS发送的同步信号；和/或
第三同步信号，所述第三同步信号用于表征第一类型基站发送的下行同步信 号；和/或
第四同步信号，所述第四同步信号用于表征第二终端发送的第一类型车联网直连同步信号；和/或
第五同步信号，所述第五同步信号用于表征第二类型基站发送的下行同步信号；
第六同步信号，所述第五同步信号用于表征第三终端发送的第二类型车联网直连同步信号。
可选地，所述根据所述第一同步信号确定用于第二类型车联网直连通信的同步参考信号，包括：
若所述第一同步信号的数量为一个，则将该第一同步信号确定为所述同步参考信号；
若所述第一同步信号的数量为多个，则按照第一设定规则从所述第一同步信号中确定所述同步参考信号。
可选地，所述第一设定规则中包括指定同步信号对应的指定优先级顺序；
所述按照第一设定规则从所述第一同步信号中确定所述同步参考信号，包括：
根据所述指定优先级顺序确定所述第一同步信号对应的第一优先级顺序；
将所述第一优先级顺序中最高优先级对应的所述第一同步信号确定为所述同步参考信号。
可选地，所述第一设定规则中包括指定同步信号对应的第一设定优先级顺序和第二设定优先级顺序、以及所述第一设定优先级顺序对应的第一设定条件和所述第二设定优先级顺序对应的第二设定条件；
所述按照第一设定规则从所述第一同步信号中确定所述同步参考信号，包括：
若检测到满足所述第一设定条件，则根据所述第一设定优先级顺序确定所述第一同步信号对应的第二优先级顺序，并将所述第二优先级顺序中最高优先级对应的所述第一同步信号确定为所述同步参考信号；
若检测到满足所述第二设定条件，则根据所述第二设定优先级顺序确定所述第一同步信号对应的第三优先级顺序，并将所述第三优先级顺序中最高优先级对应的所 述第一同步信号确定为所述同步参考信号。
可选地，所述第一设定条件包括所述第一终端位于基站覆盖范围之外；或所述第一终端位于基站覆盖范围之内、且所述基站通过下行控制信令指示所述第一终端使用所述第一设定优先级顺序；
所述第二设定条件包括所述第一终端位于基站覆盖范围之内、且所述基站通过下行控制信令指示所述第一终端使用所述第二设定优先级顺序。
可选地，所述根据所述同步参考信号进行第二类型车联网直连通信，包括：
根据所述同步参考信号发送第二类型车联网的控制信令和/或数据。
可选地，所述方法还包括：
按照第二设定规则确定用于广播传输的第一指定信号，所述指定信号包括第一信号和/或第二信号，所述第一信号包括第一类型车联网的同步信号和/或广播消息，所述第二信号包括第二类型车联网的同步信号和/或广播消息；
对所述第一指定信号进行广播传输。
可选地，所述第二设定规则是所述第一终端预先配置的、或基站通过下行控制信令指示所述第一终端使用的。
可选地，所述方法还包括：
确定用于广播传输的第二指定信号，所述第二指定信号包括第三信号和/或第四信号，所述第三信号包括与第一类型车联网的同步信号和/或广播消息兼容的第二类型车联网的同步信号和/或广播消息，所述第四信号包括与第一类型车联网的同步信号和/或广播消息不兼容的第二类型车联网的同步信号和/或广播消息；
在指定时频资源上对所述第二指定信号进行广播传输。
可选地，所述指定时频资源包括第一时频资源子集和第二时频资源子集；其中，所述第一时频资源子集是用于传输所述第三信号的时频资源，所述第二时频资源子集是用于传输所述第四信号的时频资源；
所述在指定时频资源上对所述第二指定信号进行广播传输，包括：
利用所述第一时频资源子集和所述第二时频资源子集对所述第二指定信号进行广播传输。
可选地，所述第二指定信号中包括第二类型车联网的广播消息；
所述利用所述第一时频资源子集和所述第二时频资源子集对所述第二指定信号进行广播传输，包括：
将所述第二类型车联网的广播消息划分为第一信息子集和第二信息子集；所述第一信息子集用于表征能够在所述第一时频资源子集内的物理直连广播信道PSBCH中携带的信息，所述第二信息子集用于表征不能在所述第一时频资源子集内的PSBCH中携带的信息；
利用所述第一时频资源子集对所述第一信息子集进行广播传输；
利用所述第二时频资源子集对所述第二信息子集进行广播传输。
可选地，所述利用所述第一时频资源子集和所述第二时频资源子集对所述第二指定信号进行广播传输之前，还包括：
确定所述第一设备所属的车联网类型，所述车联网类型包括第一类型车联网或第二类型车联网；
生成指示信息，所述指示信息用于表征所述车联网类型；
将所述指示信息添加到所述第一时频资源子集内的PSBCH中的指定位置。
可选地，所述指定位置位于所述PSBCH中指定用于指示所述车联网类型的保留位。
可选地，所述第一类型为LTE蜂窝网络，所述第二类型为NR蜂窝网络。
根据本公开实施例的第二方面，提供一种车联网同步装置，所述装置用于第一终端，所述第一终端能够同时支持第一类型车联网直连通信和第二类型车联网直连通信，所述装置包括：
接收模块，被配置为接收到至少一个第一同步信号，所述第一同步信号是第一类型车联网直连通信和/或第二类型车联网直连通信的同步信号；
第一确定模块，被配置为根据所述第一同步信号确定用于第二类型车联网直连通信的同步参考信号；
处理模块，被配置为根据所述同步参考信号进行第二类型车联网直连通信。
可选地，所述至少一个第一同步信号中包括以下至少一项：
第二同步信号，所述第二同步信号用于表征全球导航卫星系统GNSS发送的同步信号；和/或
第三同步信号，所述第三同步信号用于表征第一类型基站发送的下行同步信号；和/或
第四同步信号，所述第四同步信号用于表征第二终端发送的第一类型车联网直连同步信号；和/或
第五同步信号，所述第五同步信号用于表征第二类型基站发送的下行同步信号；
第六同步信号，所述第五同步信号用于表征第三终端发送的第二类型车联网直连同步信号。
可选地，所述第一确定模块包括：
第一确定子模块，被配置为若所述第一同步信号的数量为一个，则将该第一同步信号确定为所述同步参考信号；
第二确定子模块，被配置为若所述第一同步信号的数量为多个，则按照第一设定规则从所述第一同步信号中确定所述同步参考信号。
可选地，所述第一设定规则中包括指定同步信号对应的指定优先级顺序；所述第二确定子模块包括：
第三确定子模块，被配置为根据所述指定优先级顺序确定所述第一同步信号对应的第一优先级顺序；
第四确定子模块，被配置为将所述第一优先级顺序中最高优先级对应的所述第一同步信号确定为所述同步参考信号。
可选地，所述第一设定规则中包括指定同步信号对应的第一设定优先级顺序和第二设定优先级顺序、以及所述第一设定优先级顺序对应的第一设定条件和所述第二设定优先级顺序对应的第二设定条件；所述第二确定子模块包括：
第五确定子模块，被配置为若检测到满足所述第一设定条件，则根据所述第一设定优先级顺序确定所述第一同步信号对应的第二优先级顺序，并将所述第二优先级顺序中最高优先级对应的所述第一同步信号确定为所述同步参考信号；
第六确定子模块，被配置为若检测到满足所述第二设定条件，则根据所述第二 设定优先级顺序确定所述第一同步信号对应的第三优先级顺序，并将所述第三优先级顺序中最高优先级对应的所述第一同步信号确定为所述同步参考信号。
可选地，所述第一设定条件包括所述第一终端位于基站覆盖范围之外；或所述第一终端位于基站覆盖范围之内、且所述基站通过下行控制信令指示所述第一终端使用所述第一设定优先级顺序；
所述第二设定条件包括所述第一终端位于基站覆盖范围之内、且所述基站通过下行控制信令指示所述第一终端使用所述第二设定优先级顺序。
可选地，所述处理模块包括：
处理子模块，被配置为根据所述同步参考信号发送第二类型车联网的控制信令和/或数据。
可选地，所述装置还包括：
第二确定模块，被配置为按照第二设定规则确定用于广播传输的第一指定信号，所述指定信号包括第一信号和/或第二信号，所述第一信号包括第一类型车联网的同步信号和/或广播消息，所述第二信号包括第二类型车联网的同步信号和/或广播消息；
第一传输模块，被配置为对所述第一指定信号进行广播传输。
可选地，所述第二设定规则是所述第一终端预先配置的、或基站通过下行控制信令指示所述第一终端使用的。
可选地，所述装置还包括：
第三确定模块，被配置为确定用于广播传输的第二指定信号，所述第二指定信号包括第三信号和/或第四信号，所述第三信号包括与第一类型车联网的同步信号和/或广播消息兼容的第二类型车联网的同步信号和/或广播消息，所述第四信号包括与第一类型车联网的同步信号和/或广播消息不兼容的第二类型车联网的同步信号和/或广播消息；
第二传输模块，被配置为在指定时频资源上对所述第二指定信号进行广播传输。
可选地，所述指定时频资源包括第一时频资源子集和第二时频资源子集；其中，所述第一时频资源子集是用于传输所述第三信号的时频资源，所述第二时频资源子集 是用于传输所述第四信号的时频资源；
所述第二传输模块包括：
第一传输子模块，被配置为利用所述第一时频资源子集和所述第二时频资源子集对所述第二指定信号进行广播传输。
可选地，所述第二指定信号中包括第二类型车联网的广播消息；所述第一传输子模块包括：
划分子模块，被配置为将所述第二类型车联网的广播消息划分为第一信息子集和第二信息子集；所述第一信息子集用于表征能够在所述第一时频资源子集内的物理直连广播信道PSBCH中携带的信息，所述第二信息子集用于表征不能在所述第一时频资源子集内的PSBCH中携带的信息；
第二传输子模块，被配置为利用所述第一时频资源子集对所述第一信息子集进行广播传输；
第三传输子模块，被配置为利用所述第二时频资源子集对所述第二信息子集进行广播传输。
可选地，所述第二传输模块还包括：
第七确定子模块，被配置为确定所述第一设备所属的车联网类型，所述车联网类型包括第一类型车联网或第二类型车联网；
生成子模块，被配置为生成指示信息，所述指示信息用于表征所述车联网类型；
添加子模块，被配置为将所述指示信息添加到所述第一时频资源子集内的PSBCH中的指定位置。
可选地，所述指定位置位于所述PSBCH中指定用于指示所述车联网类型的保留位。
可选地，所述第一类型为LTE蜂窝网络，所述第二类型为NR蜂窝网络。
根据本公开实施例的第三方面，提供一种非临时计算机可读存储介质，所述存储介质上存储有计算机程序，其特征在于，所述计算机程序用于执行第一方面所述的车联网同步方法。
根据本公开实施例的第四方面，提供一种车联网同步装置，所述装置用于第一 终端，所述第一终端能够同时支持第一类型车联网直连通信和第二类型车联网直连通信，所述装置包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：
接收到至少一个第一同步信号，所述第一同步信号是第一类型车联网直连通信和/或第二类型车联网直连通信的同步信号；
根据所述第一同步信号确定用于第二类型车联网直连通信的同步参考信号；
根据所述同步参考信号进行第二类型车联网直连通信。
本公开的实施例提供的技术方案可以包括以下有益效果：
本公开中的第一终端在接收到至少一个第一同步信号，该第一同步信号是第一类型车联网直连通信和/或第二类型车联网直连通信的同步信号，可以根据第一同步信号确定用于第二类型车联网直连通信的同步参考信号，以及根据同步参考信号进行第二类型车联网直连通信，从而实现了利用一个类型网络的同步信号为另一个类型网络通信提供同步参考信号，还提高了车联网同步的效率。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本发明的实施例，并与说明书一起用于解释本发明的原理。
图1是根据一示例性实施例示出的一种车联网同步方法的流程图；
图2是根据一示例性实施例示出的一种车联网同步方法的应用场景图；
图3是根据一示例性实施例示出的另一种车联网同步方法的流程图；
图4是根据一示例性实施例示出的另一种车联网同步方法的流程图；
图5是根据一示例性实施例示出的另一种车联网同步方法的流程图；
图6是根据一示例性实施例示出的时频资源子集的示意图；
图7是根据一示例性实施例示出的一种传输配置装置的框图；
图8是根据一示例性实施例示出的另一种传输配置装置的框图；
图9是根据一示例性实施例示出的另一种传输配置装置的框图；
图10是根据一示例性实施例示出的另一种传输配置装置的框图；
图11是根据一示例性实施例示出的另一种传输配置装置的框图；
图12是根据一示例性实施例示出的另一种传输配置装置的框图；
图13是根据一示例性实施例示出的另一种传输配置装置的框图；
图14是根据一示例性实施例示出的另一种传输配置装置的框图；
图15是根据一示例性实施例示出的另一种传输配置装置的框图；
图16是根据一示例性实施例示出的另一种传输配置装置的框图；
图17是根据一示例性实施例示出的一种传输配置装置的结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。
在本公开使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开。在本公开和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开范围的情况下，指示信息也可以被称为第二信息，类似地，第二信息也可以被称为指示信息。取决于语境，如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
图1是根据一示例性实施例示出的一种车联网同步方法的流程图，图2是根据一示例性实施例示出的一种车联网同步方法的应用场景图；该车联网同步方法可以用 于第一终端，该第一终端能够同时支持第一类型车联网直连通信和第二类型车联网直连通信，比如：第一类型为LTE蜂窝网络，第二类型为NR蜂窝网络；如图1所示，该车联网同步方法可以包括以下步骤110-130：
在步骤110中，接收到至少一个第一同步信号，该第一同步信号是第一类型车联网直连通信和/或第二类型车联网直连通信的同步信号。
本公开实施例中，第一同步信号用于表征第一终端接收到的同步信号。其中，该第一同步信号可能是GNSS(Global Navigation Satellite System，全球导航卫星系统)发送的同步信号，比如：GPS(Global Positioning System，全球定位系统)或北斗发送的同步信号；还可能是基站发送的下行同步信号，比如：LTE蜂窝网络基站发送的下行同步信号或NR蜂窝网络基站发送的下行同步信号；也可能是其他终端广播的直连同步信号，比如：其他终端发送的LTE蜂窝网络车联网直连同步信号或NR蜂窝网络车联网直连同步信号。
在一实施例中，上述步骤110中的至少一个第一同步信号中可以包括但不限于以下至少一项：
(1-1)第二同步信号，所述第二同步信号用于表征全球导航卫星系统GNSS发送的同步信号；和/或
(1-2)第三同步信号，所述第三同步信号用于表征第一类型基站发送的下行同步信号；和/或
(1-3)第四同步信号，所述第四同步信号用于表征第二终端发送的第一类型车联网直连同步信号；和/或
(1-4)第五同步信号，所述第五同步信号用于表征第二类型基站发送的下行同步信号；和/或
(1-5)第六同步信号，所述第五同步信号用于表征第三终端发送的第二类型车联网直连同步信号。
上述(1-1)中GNSS发送的同步信号可以作为第一类型车联网的同步信号，也可以作为第一类型车联网的同步信号；上述(1-2)中第一类型基站发送的下行同步信号可以作为第一类型车联网的同步信号；上述(1-4)中第二类型基站发送的下行同步信号可以作为第二类型车联网的同步信号。其中，第一类型可以为LTE蜂窝网络，第二类型可以为NR蜂窝网络。
在步骤120中，根据第一同步信号确定用于第二类型车联网直连通信的同步参考信号。
本公开实施例中，同步参考信号可以是第一同步信号中的一个。至于如何确定该同步参考信号，可以根据第一同步信号的数量采用对应的确定方式，其具体实现过程可参见图3所示实施例。
在步骤130中，根据同步参考信号进行第二类型车联网直连通信。
本公开实施例中，根据同步参考信号可以进行频率同步和时间同步。
在一实施例中，在执行步骤130时，可以包括：
(2-1)根据同步参考信号发送第二类型车联网(例如，NR V2X)的控制信令和/或数据。
比如：同步参考信号是LTE基站发送的下行同步信号，可以将该下行同步信号作为发送NR V2X的控制信令和/或数据的同步参考信号，并根据该同步参考信号发送NR V2X控制信令和/或数据。
又比如：同步参考信号是LTE V2X终端发送的LTE V2X直连同步信号，可以将该LTE V2X直连同步信号作为发送NR V2X控制信令和/或数据的同步参考信号，并根据该同步参考信号发送NR V2X控制信令和/或数据。
在一实例性场景中，如图2所示，第一终端接收到多个第一同步信号，分别是：GNSS发送的同步信号、基站发送的下行同步信号、第二终端发送的LTE V2X直连同步信号、和第三终端发送的NR V2X直连同步信号，这样第一终端可以根据这些第一同步信号确定用于第二类型车联网(例如，NR V2X)直连通信的同步参考信号，以及根据同步参考信号进行第二类型车联网直连通信。比如：第一终端确定的同步参考信号为GNSS发送的同步信号，则可以根据GNSS发送的同步信号进行第二类型车联网(例如，NR V2X)直连通信。
由上述实施例可见，在接收到至少一个第一同步信号，该第一同步信号是第一类型车联网直连通信和/或第二类型车联网直连通信的同步信号，可以根据第一同步信号确定用于第二类型车联网直连通信的同步参考信号，以及根据同步参考信号进行第二类型车联网直连通信，从而实现了利用一个类型网络的同步信号为另一个类型网络通信提供同步参考信号，还提高了车联网同步的效率。
图3是根据一示例性实施例示出的另一种车联网同步方法的流程图，该车联网同步方法可以用于第一终端，并建立在图1所示方法的基础上，在执行步骤120时，如图3所示，可以包括以下步骤310-320：
在步骤310中，若第一同步信号的数量为一个，则将该第一同步信号确定为同步参考信号。
在步骤320中，若第一同步信号的数量为多个，则按照第一设定规则从第一同步信号中确定同步参考信号。
本公开实施例中，第一设定规则可以是第一终端预先配置的；还可以是基站通过下行控制信令指示所述第一终端使用的。
至于如何按照第一设定规则从第一同步信号中确定同步参考信号，可以包括但不限于以下实现方式：
方式一：所述第一设定规则中包括指定同步信号对应的指定优先级顺序。
此种方式下，在执行步骤320时，可以包括：
(3-1)根据所述指定优先级顺序确定所述第一同步信号对应的第一优先级顺序；
(3-2)将所述第一优先级顺序中最高优先级对应的所述第一同步信号确定为所述同步参考信号。
比如：指定优先级顺序为：GNSS发送的同步信号>(即优先级大于)NR蜂窝网络车联网直连同步信号>＝(即优先级大于或等于)LTE蜂窝网络车联网直连同步信号>(即优先级大于)基站发送的下行同步信号。
又比如：指定优先级顺序为：基站发送的下行同步信号>(即优先级大于)GNSS发送的同步信号>(即优先级大于)NR蜂窝网络车联网直连同步信号>＝(即优先级大于或等于)LTE蜂窝网络车联网直连同步信号。
又比如：指定优先级顺序为：基站发送的下行同步信号>(即优先级大于)NR蜂窝网络车联网直连同步信号>＝(即优先级大于或等于)LTE蜂窝网络车联网直连同步信号>(即优先级大于)GNSS发送的同步信号。
另外，上述方式一中的指定优先级顺序，还可以考虑到发送直连同步信号的用户终端选择的同步参考信号和/或同步源的影响。比如：指定优先级顺序为：GNSS发 送的同步信号>(即优先级大于)以GNSS为同步参考信号/同步源的NR蜂窝网络车联网直连同步信号>＝(即优先级大于或等于)以GNSS为同步参考信号/同步源的LTE蜂窝网络车联网直连同步信号>(即优先级大于)基站发送的下行同步信号>(即优先级大于)其他。
方式二：所述第一设定规则中包括指定同步信号对应的第一设定优先级顺序和第二设定优先级顺序、以及所述第一设定优先级顺序对应的第一设定条件和所述第二设定优先级顺序对应的第二设定条件。
此种方式下，第一终端检测自己所处条件，其中，在执行步骤320时，可以包括：
(4-1)若检测到满足所述第一设定条件，则根据所述第一设定优先级顺序确定所述第一同步信号对应的第二优先级顺序，并将所述第二优先级顺序中最高优先级对应的所述第一同步信号确定为所述同步参考信号；
(4-2)若检测到满足所述第二设定条件，则根据所述第二设定优先级顺序确定所述第一同步信号对应的第三优先级顺序，并将所述第三优先级顺序中最高优先级对应的所述第一同步信号确定为所述同步参考信号。
在一实施例中，第一设定条件可以包括所述第一终端位于基站覆盖范围之外；或所述第一终端位于基站覆盖范围之内、且所述基站通过下行控制信令指示所述第一终端使用所述第一设定优先级顺序；所述第二设定条件包括所述第一终端位于基站覆盖范围之内、且所述基站通过下行控制信令指示所述第一终端使用所述第二设定优先级顺序。也就是说，当处于基站覆盖范围之外时，可以使用第二优先级顺序；当处于基站覆盖范围之内时，还需要根据基站侧的下行控制信令指示决定使用第二优先级顺序还是第三优先级顺序。
比如：第二优先级顺序为：GNSS发送的同步信号>NR蜂窝网络车联网直连同步信号>LTE蜂窝网络车联网直连同步信号>基站发送的下行同步信号；第三优先级顺序为：基站发送的下行同步信号>GNSS发送的同步信号>NR蜂窝网络车联网直连同步信号>LTE蜂窝网络车联网直连同步信号。
由上述实施例可见，若第一同步信号的数量为一个，可以直接将该第一同步信号确定为同步参考信号；若第一同步信号的数量为多个，可以按照第一设定规则从第一同步信号中确定同步参考信号，从而提高了确定同步参考信号的准确性。
图4是根据一示例性实施例示出的另一种车联网同步方法的流程图，该车联网同步方法可以用于第一终端，并建立在图1所示方法的基础上，如图4所示，该车联网同步方法还可以包括以下步骤410-420：
在步骤410中，按照第二设定规则确定用于广播传输的第一指定信号。其中，该指定信号可以包括第一信号和/或第二信号，所述第一信号包括第一类型车联网的同步信号和/或广播消息，所述第二信号包括第二类型车联网的同步信号和/或广播消息。
在一实施例中，上述步骤410中的第二设定规则可以是所述第一终端预先配置的、或基站通过下行控制信令指示所述第一终端使用的。
其中，该第二设定规则可以指定发送第一类型车联网(例如，LTE V2X)的同步信号和/或广播消息；也可以指定发送第二类型车联网(例如，NR V2X)的同步信号和/或广播消息；还可以指定发送第一类型车联网(例如，LTE V2X)的同步信号和/或广播消息，也发送第二类型车联网(例如，NR V2X)的同步信号和/或广播消息。
在步骤420中，对第一指定信号进行广播传输。
本公开实施例中，当第一终端能够同时支持第一类型(例如，LTE V2X)车联网直连通信和第二类型车联网(例如，NR V2X)直连通信时，该第一终端可以按照第二设定规则只发送第一类型车联网(例如，LTE V2X)的同步信号和/或广播消息；也可以按照第二设定规则只发送第二类型车联网(例如，NR V2X)的同步信号和/或广播消息；还可以按照第二设定规则既发送第一类型车联网(例如，LTE V2X)的同步信号和/或广播消息，也发送第二类型车联网(例如，NR V2X)的同步信号和/或广播消息。
由上述实施例可见，可以按照第二设定规则确定用于广播传输的第一指定信号，这样第一终端可以按照第二设定规则只发送第一类型车联网(例如，LTE V2X)的同步信号和/或广播消息；也可以按照第二设定规则只发送第二类型车联网(例如，NR V2X)的同步信号和/或广播消息；还可以按照第二设定规则既发送第一类型车联网(例如，LTE V2X)的同步信号和/或广播消息，也发送第二类型车联网(例如，NR V2X)的同步信号和/或广播消息，从而提高了车联网同步的灵活性，还提高了车联网同步的实用性。
图5是根据一示例性实施例示出的另一种车联网同步方法的流程图，该车联网同步方法可以用于第一终端，并建立在图1所示方法的基础上，如图5所示，该车联 网同步方法还可以包括以下步骤510-520：
在步骤510中，确定用于广播传输的第二指定信号。其中，该第二指定信号可以包括第三信号和/或第四信号，所述第三信号包括与第一类型车联网(例如，LTE V2X)的同步信号和/或广播消息兼容的第二类型车联网(例如，NR V2X)的同步信号和/或广播消息，所述第四信号包括与第一类型车联网(例如，LTE V2X)的同步信号和/或广播消息不兼容的第二类型车联网(例如，NR V2X)的同步信号和/或广播消息。其中，这里的兼容可以指定是LTE V2X用户设备可以正确接收NR V2X的同步信号/广播消息。
在步骤520中，在指定时频资源上对第二指定信号进行广播传输。
本公开实施例中，指定时频资源是用于传输第二类型车联网(例如，NR V2X)的同步信号和/或广播消息的时频资源。
在一实施例中，所述指定时频资源包括第一时频资源子集和第二时频资源子集；其中，所述第一时频资源子集是用于传输所述第三信号的时频资源，所述第二时频资源子集是用于传输所述第四信号的时频资源；在执行步骤520时，可以包括：
(5-1)利用所述第一时频资源子集和所述第二时频资源子集对所述第二指定信号进行广播传输。如图6所示，指定时频资源包括时频资源子集1和时频资源子集2，在时频资源子集1上传输的第二类型车联网(例如，NR V2X)的同步信号和/或广播消息与第一类型车联网(例如，LTE V2X)相同；在时频资源子集1上传输的第二类型车联网(例如，NR V2X)的同步信号和/或广播消息与第一类型车联网(例如，LTE V2X)不同，比如：使用不同的子载波间隔(30KHz或60KHz)，不同的编解码方案(例如，极化码(Polar Codes))，广播消息里包含不同的比特信息域等。
在一实施例中，若第二指定信号中包括第二类型车联网(例如，NR V2X)的广播消息，在执行(5-1)时，可以包括：
(6-1)将所述第二类型车联网的广播消息划分为第一信息子集和第二信息子集；所述第一信息子集用于表征能够在所述第一时频资源子集内的PSBCH(Physical Sidelink Broadcast Channel，物理直连广播信道)中携带的信息，所述第二信息子集用于表征不能在所述第一时频资源子集内的PSBCH中携带的信息
(6-2)利用所述第一时频资源子集对所述第一信息子集进行广播传输；
(6-3)利用所述第二时频资源子集对所述第二信息子集进行广播传输。
其中，第一时频资源子集用于传输与第一类型车联网(例如，LTE V2X)的同步信号和/或广播消息兼容的第二类型车联网(例如，NR V2X)的同步信号和/或广播消息；第二时频资源子集用于传输与第一类型车联网(例如，LTE V2X)的同步信号和/或广播消息不兼容的第二类型车联网(例如，NR V2X)的同步信号和/或广播消息。
比如：第二类型车联网(例如，NR V2X)的广播消息中可能会携带关于第一终端发送第二类型车联网(例如，NR V2X)的控制信令和/或数据时使用的SCS(Subcarrier Spacing，子载波间隔)和资源池等信息，这些信息无法在第一时频资源子集内的PSBCH中携带，所以其他第二类型车联网(例如，NR V2X)用户终端在接收到第一时频资源子集上发送的同步信号和/或广播消息后，可能还需要接收第二时频资源子集上的广播消息以获取完整的广播消息。
在一实施例中，在执行(5-1)之前，还可以包括：
(7-1)确定所述第一设备所属的车联网类型，所述车联网类型包括第一类型车联网(例如，LTE V2X)或第二类型车联网(例如，NR V2X)；
本公开实施例中，第一设备所属的车联网类型可能是第一类型车联网(例如，LTE V2X)；也可能是第二类型车联网(例如，NR V2X)。
(7-2)生成指示信息，所述指示信息用于表征所述车联网类型；
(7-3)将所述指示信息添加到所述第一时频资源子集内的PSBCH中的指定位置。
在一实施例中，上述(7-3)中的指定位置可以位于所述PSBCH中指定用于指示所述车联网类型的保留位。也就是说，可以使用第一时频资源子集内的PSBCH中的保留位(reserved bits)指示该同步信号和/或广播消息的发送终端为NR V2X终端还是LTE V2X终端。
比如：第一时频资源子集内的PSBCH中传输的广播消息包括27个比特(bit)的保留位(reserved bits)，可以使用其中的1个比特(bit)指示发送终端为NR V2X终端还是LTE V2X终端。同时，该同步信号和/或广播消息的接收终端可以根据第一时频资源子集内的PSBCH中的指定位置判断发送终端为NR V2X终端还是LTE V2X终端，进而还可以判断是否接收第二时频资源子集上的广播消息。
由上述实施例可见，通过确定用于广播传输的第二指定信号，并在指定时频资源上对第二指定信号进行广播传输，尤其是指定时频资源中的第一时频资源子集用于 传输与第一类型车联网(例如，LTE V2X)的同步信号和/或广播消息兼容的第二类型车联网(例如，NR V2X)的同步信号和/或广播消息，第二时频资源子集用于传输与第一类型车联网(例如，LTE V2X)的同步信号和/或广播消息不兼容的第二类型车联网(例如，NR V2X)的同步信号和/或广播消息，从而提高了第二类型车联网(例如，NR V2X)直连通信的可靠性。
与前述车联网同步方法的实施例相对应，本公开还提供了车联网同步装置的实施例。
图7是根据一示例性实施例示出的一种车联网同步装置的框图，该车联网同步装置可以用于第一终端，所述第一终端能够同时支持第一类型车联网直连通信和第二类型车联网直连通信，比如：第一类型为LTE蜂窝网络，第二类型为NR蜂窝网络,并用于执行图1所示的车联网同步方法；如图7所示，该车联网同步装置可以包括：
接收模块71，被配置为接收到至少一个第一同步信号，所述第一同步信号是第一类型车联网直连通信和/或第二类型车联网直连通信的同步信号；
第一确定模块72，被配置为根据所述第一同步信号确定用于第二类型车联网直连通信的同步参考信号；
处理模块73，被配置为根据所述同步参考信号进行第二类型车联网直连通信。
由上述实施例可见，在接收到至少一个第一同步信号，该第一同步信号是第一类型车联网直连通信和/或第二类型车联网直连通信的同步信号，可以根据第一同步信号确定用于第二类型车联网直连通信的同步参考信号，以及根据同步参考信号进行第二类型车联网直连通信，从而实现了利用一个类型网络的同步信号为另一个类型网络通信提供同步参考信号，还提高了车联网同步的效率。
在一实施例中，建立图7所示装置的基础上，所述至少一个第一同步信号中包括以下至少一项：
第二同步信号，所述第二同步信号用于表征全球导航卫星系统GNSS发送的同步信号；和/或
第三同步信号，所述第三同步信号用于表征第一类型基站发送的下行同步信号；和/或
第四同步信号，所述第四同步信号用于表征第二终端发送的第一类型车联网直 连同步信号；和/或
第五同步信号，所述第五同步信号用于表征第二类型基站发送的下行同步信号；
第六同步信号，所述第五同步信号用于表征第三终端发送的第二类型车联网直连同步信号。
在一实施例中，建立图7所示装置的基础上，如图8所示，所述第一确定模块72包括：
第一确定子模块81，被配置为若所述第一同步信号的数量为一个，则将该第一同步信号确定为所述同步参考信号；
第二确定子模块82，被配置为若所述第一同步信号的数量为多个，则按照第一设定规则从所述第一同步信号中确定所述同步参考信号。
由上述实施例可见，若第一同步信号的数量为一个，可以直接将该第一同步信号确定为同步参考信号；若第一同步信号的数量为多个，可以按照第一设定规则从第一同步信号中确定同步参考信号，从而提高了确定同步参考信号的准确性。
在一实施例中，建立图8所示装置的基础上，如图9所示，所述第一设定规则中包括指定同步信号对应的指定优先级顺序；所述第二确定子模块82包括：
第三确定子模块91，被配置为根据所述指定优先级顺序确定所述第一同步信号对应的第一优先级顺序；
第四确定子模块92，被配置为将所述第一优先级顺序中最高优先级对应的所述第一同步信号确定为所述同步参考信号。
在一实施例中，建立图8所示装置的基础上，如图10所示，所述第一设定规则中包括指定同步信号对应的第一设定优先级顺序和第二设定优先级顺序、以及所述第一设定优先级顺序对应的第一设定条件和所述第二设定优先级顺序对应的第二设定条件；所述第二确定子模块82包括：
第五确定子模块101，被配置为若检测到满足所述第一设定条件，则根据所述第一设定优先级顺序确定所述第一同步信号对应的第二优先级顺序，并将所述第二优先级顺序中最高优先级对应的所述第一同步信号确定为所述同步参考信号；
第六确定子模块102，被配置为若检测到满足所述第二设定条件，则根据所述 第二设定优先级顺序确定所述第一同步信号对应的第三优先级顺序，并将所述第三优先级顺序中最高优先级对应的所述第一同步信号确定为所述同步参考信号。
在一实施例中，建立图10所示装置的基础上，所述第一设定条件包括所述第一终端位于基站覆盖范围之外；或所述第一终端位于基站覆盖范围之内、且所述基站通过下行控制信令指示所述第一终端使用所述第一设定优先级顺序；
所述第二设定条件包括所述第一终端位于基站覆盖范围之内、且所述基站通过下行控制信令指示所述第一终端使用所述第二设定优先级顺序。
在一实施例中，建立图7所示装置的基础上，如图11所示，所述处理模块73包括：
处理子模块111，被配置为根据所述同步参考信号发送第二类型车联网的控制信令和/或数据。
在一实施例中，建立图7所示装置的基础上，如图12所示，所述装置还包括：
第二确定模块121，被配置为按照第二设定规则确定用于广播传输的第一指定信号，所述指定信号包括第一信号和/或第二信号，所述第一信号包括第一类型车联网的同步信号和/或广播消息，所述第二信号包括第二类型车联网的同步信号和/或广播消息；
第一传输模块122，被配置为对所述第一指定信号进行广播传输。
由上述实施例可见，可以按照第二设定规则确定用于广播传输的第一指定信号，这样第一终端可以按照第二设定规则只发送第一类型车联网(例如，LTE V2X)的同步信号和/或广播消息；也可以按照第二设定规则只发送第二类型车联网(例如，NR V2X)的同步信号和/或广播消息；还可以按照第二设定规则既发送第一类型车联网(例如，LTE V2X)的同步信号和/或广播消息，也发送第二类型车联网(例如，NR V2X)的同步信号和/或广播消息，从而提高了车联网同步的灵活性，还提高了车联网同步的实用性。
在一实施例中，建立图12所示装置的基础上，所述第二设定规则是所述第一终端预先配置的、或基站通过下行控制信令指示所述第一终端使用的。
在一实施例中，建立图7所示装置的基础上，如图13所示，所述装置还包括：
第三确定模块131，被配置为确定用于广播传输的第二指定信号，所述第二指 定信号包括第三信号和/或第四信号，所述第三信号包括与第一类型车联网的同步信号和/或广播消息兼容的第二类型车联网的同步信号和/或广播消息，所述第四信号包括与第一类型车联网的同步信号和/或广播消息不兼容的第二类型车联网的同步信号和/或广播消息；
第二传输模块132，被配置为在指定时频资源上对所述第二指定信号进行广播传输。
由上述实施例可见，通过确定用于广播传输的第二指定信号，并在指定时频资源上对第二指定信号进行广播传输，尤其是指定时频资源中的第一时频资源子集用于传输与第一类型车联网(例如，LTE V2X)的同步信号和/或广播消息兼容的第二类型车联网(例如，NR V2X)的同步信号和/或广播消息，第二时频资源子集用于传输与第一类型车联网(例如，LTE V2X)的同步信号和/或广播消息不兼容的第二类型车联网(例如，NR V2X)的同步信号和/或广播消息，从而提高了第二类型车联网(例如，NR V2X)直连通信的可靠性。
在一实施例中，建立图13所示装置的基础上，如图14所示，所述指定时频资源包括第一时频资源子集和第二时频资源子集；其中，所述第一时频资源子集是用于传输所述第三信号的时频资源，所述第二时频资源子集是用于传输所述第四信号的时频资源；
所述第二传输模块132包括：
第一传输子模块141，被配置为利用所述第一时频资源子集和所述第二时频资源子集对所述第二指定信号进行广播传输。
在一实施例中，建立图14所示装置的基础上，如图15所示，所述第二指定信号中包括第二类型车联网的广播消息；所述第一传输子模块141包括：
划分子模块151，被配置为将所述第二类型车联网的广播消息划分为第一信息子集和第二信息子集；所述第一信息子集用于表征能够在所述第一时频资源子集内的物理直连广播信道PSBCH中携带的信息，所述第二信息子集用于表征不能在所述第一时频资源子集内的PSBCH中携带的信息；
第二传输子模块152，被配置为利用所述第一时频资源子集对所述第一信息子集进行广播传输；
第三传输子模块153，被配置为利用所述第二时频资源子集对所述第二信息子 集进行广播传输。
在一实施例中，建立图14所示装置的基础上，如图16所示，所述第二传输模块132还包括：
第七确定子模块161，被配置为确定所述第一设备所属的车联网类型，所述车联网类型包括第一类型车联网或第二类型车联网；
生成子模块162，被配置为生成指示信息，所述指示信息用于表征所述车联网类型；
添加子模块163，被配置为将所述指示信息添加到所述第一时频资源子集内的PSBCH中的指定位置。
在一实施例中，建立图16所示装置的基础上，所述指定位置位于所述PSBCH中指定用于指示所述车联网类型的保留位。
在一实施例中，建立图7至图16任一项所示装置的基础上，其特征在于，所述第一类型为LTE蜂窝网络，所述第二类型为NR蜂窝网络。
对于装置实施例而言，由于其基本对应于方法实施例，所以相关之处参见方法实施例的部分说明即可。以上所描述的装置实施例仅仅是示意性的，其中上述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本公开方案的目的。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。
相应地，本公开还提供了一种非临时计算机可读存储介质，所述存储介质上存储有计算机程序，其特征在于，所述计算机程序用于执行上述图1至图6任一所述的车联网同步方法。
本公开还提供了一种车联网同步装置，所述装置用于第一终端，所述第一终端能够同时支持第一类型车联网直连通信和第二类型车联网直连通信，所述装置包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：
接收到至少一个第一同步信号，所述第一同步信号是第一类型车联网直连通信 和/或第二类型车联网直连通信的同步信号；
根据所述第一同步信号确定用于第二类型车联网直连通信的同步参考信号；
根据所述同步参考信号进行第二类型车联网直连通信。
图17是根据一示例性实施例示出的一种车联网同步装置的结构示意图。如图17所示，根据一示例性实施例示出的一种车联网同步装置1700，该装置1700可以是计算机，移动电话，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等终端。
参照图17，装置1700可以包括以下一个或多个组件：处理组件1701，存储器1702，电源组件1703，多媒体组件1704，音频组件1705，输入/输出(I/O)的接口1706，传感器组件1707，以及通信组件1708。
处理组件1701通常控制装置1700的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件1701可以包括一个或多个处理器1709来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件1701可以包括一个或多个模块，便于处理组件1701和其它组件之间的交互。例如，处理组件1701可以包括多媒体模块，以方便多媒体组件1704和处理组件1701之间的交互。
存储器1702被配置为存储各种类型的数据以支持在装置1700的操作。这些数据的示例包括用于在装置1700上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器1702可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件1703为装置1700的各种组件提供电力。电源组件1703可以包括电源管理系统，一个或多个电源，及其它与为装置1700生成、管理和分配电力相关联的组件。
多媒体组件1704包括在所述装置1700和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续 时间和压力。在一些实施例中，多媒体组件1704包括一个前置摄像头和/或后置摄像头。当装置1700处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件1705被配置为输出和/或输入音频信号。例如，音频组件1705包括一个麦克风(MIC)，当装置1700处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器1702或经由通信组件1708发送。在一些实施例中，音频组件1705还包括一个扬声器，用于输出音频信号。
I/O接口1706为处理组件1701和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件1707包括一个或多个传感器，用于为装置1700提供各个方面的状态评估。例如，传感器组件1707可以检测到装置1700的打开/关闭状态，组件的相对定位，例如所述组件为装置1700的显示器和小键盘，传感器组件1707还可以检测装置1700或装置1700一个组件的位置改变，用户与装置1700接触的存在或不存在，装置1700方位或加速/减速和装置1700的温度变化。传感器组件1707可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件1707还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件1707还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件1708被配置为便于装置1700和其它设备之间有线或无线方式的通信。装置1700可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件1708经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件1708还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其它技术来实现。
在示例性实施例中，装置1700可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现 场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其它电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器1702，上述指令可由装置1700的处理器1709执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
其中，当所述存储介质中的指令由所述处理器执行时，使得装置1700能够执行上述任一所述的车联网同步方法。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (32)

  1. 一种车联网同步方法，其特征在于，所述方法用于第一终端，所述第一终端能够同时支持第一类型车联网直连通信和第二类型车联网直连通信，所述方法包括：
    接收到至少一个第一同步信号，所述第一同步信号是第一类型车联网直连通信和/或第二类型车联网直连通信的同步信号；
    根据所述第一同步信号确定用于第二类型车联网直连通信的同步参考信号；
    根据所述同步参考信号进行第二类型车联网直连通信。
  2. 根据权利要求1所述的方法，其特征在于，所述至少一个第一同步信号中包括以下至少一项：
    第二同步信号，所述第二同步信号用于表征全球导航卫星系统GNSS发送的同步信号；和/或
    第三同步信号，所述第三同步信号用于表征第一类型基站发送的下行同步信号；和/或
    第四同步信号，所述第四同步信号用于表征第二终端发送的第一类型车联网直连同步信号；和/或
    第五同步信号，所述第五同步信号用于表征第二类型基站发送的下行同步信号；
    第六同步信号，所述第五同步信号用于表征第三终端发送的第二类型车联网直连同步信号。
  3. 根据权利要求1所述的方法，其特征在于，所述根据所述第一同步信号确定用于第二类型车联网直连通信的同步参考信号，包括：
    若所述第一同步信号的数量为一个，则将该第一同步信号确定为所述同步参考信号；
    若所述第一同步信号的数量为多个，则按照第一设定规则从所述第一同步信号中确定所述同步参考信号。
  4. 根据权利要求3所述的方法，其特征在于，所述第一设定规则中包括指定同步信号对应的指定优先级顺序；
    所述按照第一设定规则从所述第一同步信号中确定所述同步参考信号，包括：
    根据所述指定优先级顺序确定所述第一同步信号对应的第一优先级顺序；
    将所述第一优先级顺序中最高优先级对应的所述第一同步信号确定为所述同步参考信号。
  5. 根据权利要求3所述的方法，其特征在于，所述第一设定规则中包括指定同步 信号对应的第一设定优先级顺序和第二设定优先级顺序、以及所述第一设定优先级顺序对应的第一设定条件和所述第二设定优先级顺序对应的第二设定条件；
    所述按照第一设定规则从所述第一同步信号中确定所述同步参考信号，包括：
    若检测到满足所述第一设定条件，则根据所述第一设定优先级顺序确定所述第一同步信号对应的第二优先级顺序，并将所述第二优先级顺序中最高优先级对应的所述第一同步信号确定为所述同步参考信号；
    若检测到满足所述第二设定条件，则根据所述第二设定优先级顺序确定所述第一同步信号对应的第三优先级顺序，并将所述第三优先级顺序中最高优先级对应的所述第一同步信号确定为所述同步参考信号。
  6. 根据权利要求5所述的方法，其特征在于，所述第一设定条件包括所述第一终端位于基站覆盖范围之外；或所述第一终端位于基站覆盖范围之内、且所述基站通过下行控制信令指示所述第一终端使用所述第一设定优先级顺序；
    所述第二设定条件包括所述第一终端位于基站覆盖范围之内、且所述基站通过下行控制信令指示所述第一终端使用所述第二设定优先级顺序。
  7. 根据权利要求1所述的方法，其特征在于，所述根据所述同步参考信号进行第二类型车联网直连通信，包括：
    根据所述同步参考信号发送第二类型车联网的控制信令和/或数据。
  8. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    按照第二设定规则确定用于广播传输的第一指定信号，所述指定信号包括第一信号和/或第二信号，所述第一信号包括第一类型车联网的同步信号和/或广播消息，所述第二信号包括第二类型车联网的同步信号和/或广播消息；
    对所述第一指定信号进行广播传输。
  9. 根据权利要求8所述的方法，其特征在于，所述第二设定规则是所述第一终端预先配置的、或基站通过下行控制信令指示所述第一终端使用的。
  10. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    确定用于广播传输的第二指定信号，所述第二指定信号包括第三信号和/或第四信号，所述第三信号包括与第一类型车联网的同步信号和/或广播消息兼容的第二类型车联网的同步信号和/或广播消息，所述第四信号包括与第一类型车联网的同步信号和/或广播消息不兼容的第二类型车联网的同步信号和/或广播消息；
    在指定时频资源上对所述第二指定信号进行广播传输。
  11. 根据权利要求10所述的方法，其特征在于，所述指定时频资源包括第一时频 资源子集和第二时频资源子集；其中，所述第一时频资源子集是用于传输所述第三信号的时频资源，所述第二时频资源子集是用于传输所述第四信号的时频资源；
    所述在指定时频资源上对所述第二指定信号进行广播传输，包括：
    利用所述第一时频资源子集和所述第二时频资源子集对所述第二指定信号进行广播传输。
  12. 根据权利要求11所述的方法，其特征在于，所述第二指定信号中包括第二类型车联网的广播消息；
    所述利用所述第一时频资源子集和所述第二时频资源子集对所述第二指定信号进行广播传输，包括：
    将所述第二类型车联网的广播消息划分为第一信息子集和第二信息子集；所述第一信息子集用于表征能够在所述第一时频资源子集内的物理直连广播信道PSBCH中携带的信息，所述第二信息子集用于表征不能在所述第一时频资源子集内的PSBCH中携带的信息；
    利用所述第一时频资源子集对所述第一信息子集进行广播传输；
    利用所述第二时频资源子集对所述第二信息子集进行广播传输。
  13. 根据权利要求11所述的方法，其特征在于，所述利用所述第一时频资源子集和所述第二时频资源子集对所述第二指定信号进行广播传输之前，还包括：
    确定所述第一设备所属的车联网类型，所述车联网类型包括第一类型车联网或第二类型车联网；
    生成指示信息，所述指示信息用于表征所述车联网类型；
    将所述指示信息添加到所述第一时频资源子集内的PSBCH中的指定位置。
  14. 根据权利要求13所述的方法，其特征在于，所述指定位置位于所述PSBCH中指定用于指示所述车联网类型的保留位。
  15. 根据权利要求1至14任一项所述的方法，其特征在于，所述第一类型为长期演进LTE蜂窝网络，所述第二类型为新空口NR蜂窝网络。
  16. 一种车联网同步装置，其特征在于，所述装置用于第一终端，所述第一终端能够同时支持第一类型车联网直连通信和第二类型车联网直连通信，所述装置包括：
    接收模块，被配置为接收到至少一个第一同步信号，所述第一同步信号是第一类型车联网直连通信和/或第二类型车联网直连通信的同步信号；
    第一确定模块，被配置为根据所述第一同步信号确定用于第二类型车联网直连通信的同步参考信号；
    处理模块，被配置为根据所述同步参考信号进行第二类型车联网直连通信。
  17. 根据权利要求16所述的装置，其特征在于，所述至少一个第一同步信号中包括以下至少一项：
    第二同步信号，所述第二同步信号用于表征全球导航卫星系统GNSS发送的同步信号；和/或
    第三同步信号，所述第三同步信号用于表征第一类型基站发送的下行同步信号；和/或
    第四同步信号，所述第四同步信号用于表征第二终端发送的第一类型车联网直连同步信号；和/或
    第五同步信号，所述第五同步信号用于表征第二类型基站发送的下行同步信号；
    第六同步信号，所述第五同步信号用于表征第三终端发送的第二类型车联网直连同步信号。
  18. 根据权利要求16所述的装置，其特征在于，所述第一确定模块包括：
    第一确定子模块，被配置为若所述第一同步信号的数量为一个，则将该第一同步信号确定为所述同步参考信号；
    第二确定子模块，被配置为若所述第一同步信号的数量为多个，则按照第一设定规则从所述第一同步信号中确定所述同步参考信号。
  19. 根据权利要求18所述的装置，其特征在于，所述第一设定规则中包括指定同步信号对应的指定优先级顺序；所述第二确定子模块包括：
    第三确定子模块，被配置为根据所述指定优先级顺序确定所述第一同步信号对应的第一优先级顺序；
    第四确定子模块，被配置为将所述第一优先级顺序中最高优先级对应的所述第一同步信号确定为所述同步参考信号。
  20. 根据权利要求18所述的装置，其特征在于，所述第一设定规则中包括指定同步信号对应的第一设定优先级顺序和第二设定优先级顺序、以及所述第一设定优先级顺序对应的第一设定条件和所述第二设定优先级顺序对应的第二设定条件；所述第二确定子模块包括：
    第五确定子模块，被配置为若检测到满足所述第一设定条件，则根据所述第一设定优先级顺序确定所述第一同步信号对应的第二优先级顺序，并将所述第二优先级顺序中最高优先级对应的所述第一同步信号确定为所述同步参考信号；
    第六确定子模块，被配置为若检测到满足所述第二设定条件，则根据所述第二设 定优先级顺序确定所述第一同步信号对应的第三优先级顺序，并将所述第三优先级顺序中最高优先级对应的所述第一同步信号确定为所述同步参考信号。
  21. 根据权利要求20所述的装置，其特征在于，所述第一设定条件包括所述第一终端位于基站覆盖范围之外；或所述第一终端位于基站覆盖范围之内、且所述基站通过下行控制信令指示所述第一终端使用所述第一设定优先级顺序；
    所述第二设定条件包括所述第一终端位于基站覆盖范围之内、且所述基站通过下行控制信令指示所述第一终端使用所述第二设定优先级顺序。
  22. 根据权利要求16所述的装置，其特征在于，所述处理模块包括：
    处理子模块，被配置为根据所述同步参考信号发送第二类型车联网的控制信令和/或数据。
  23. 根据权利要求16所述的装置，其特征在于，所述装置还包括：
    第二确定模块，被配置为按照第二设定规则确定用于广播传输的第一指定信号，所述指定信号包括第一信号和/或第二信号，所述第一信号包括第一类型车联网的同步信号和/或广播消息，所述第二信号包括第二类型车联网的同步信号和/或广播消息；
    第一传输模块，被配置为对所述第一指定信号进行广播传输。
  24. 根据权利要求23所述的装置，其特征在于，所述第二设定规则是所述第一终端预先配置的、或基站通过下行控制信令指示所述第一终端使用的。
  25. 根据权利要求16所述的装置，其特征在于，所述装置还包括：
    第三确定模块，被配置为确定用于广播传输的第二指定信号，所述第二指定信号包括第三信号和/或第四信号，所述第三信号包括与第一类型车联网的同步信号和/或广播消息兼容的第二类型车联网的同步信号和/或广播消息，所述第四信号包括与第一类型车联网的同步信号和/或广播消息不兼容的第二类型车联网的同步信号和/或广播消息；
    第二传输模块，被配置为在指定时频资源上对所述第二指定信号进行广播传输。
  26. 根据权利要求25所述的装置，其特征在于，所述指定时频资源包括第一时频资源子集和第二时频资源子集；其中，所述第一时频资源子集是用于传输所述第三信号的时频资源，所述第二时频资源子集是用于传输所述第四信号的时频资源；
    所述第二传输模块包括：
    第一传输子模块，被配置为利用所述第一时频资源子集和所述第二时频资源子集对所述第二指定信号进行广播传输。
  27. 根据权利要求26所述的装置，其特征在于，所述第二指定信号中包括第二类 型车联网的广播消息；所述第一传输子模块包括：
    划分子模块，被配置为将所述第二类型车联网的广播消息划分为第一信息子集和第二信息子集；所述第一信息子集用于表征能够在所述第一时频资源子集内的物理直连广播信道PSBCH中携带的信息，所述第二信息子集用于表征不能在所述第一时频资源子集内的PSBCH中携带的信息；
    第二传输子模块，被配置为利用所述第一时频资源子集对所述第一信息子集进行广播传输；
    第三传输子模块，被配置为利用所述第二时频资源子集对所述第二信息子集进行广播传输。
  28. 根据权利要求26所述的装置，其特征在于，所述第二传输模块还包括：
    第七确定子模块，被配置为确定所述第一设备所属的车联网类型，所述车联网类型包括第一类型车联网或第二类型车联网；
    生成子模块，被配置为生成指示信息，所述指示信息用于表征所述车联网类型；
    添加子模块，被配置为将所述指示信息添加到所述第一时频资源子集内的PSBCH中的指定位置。
  29. 根据权利要求18所述的装置，其特征在于，所述指定位置位于所述PSBCH中指定用于指示所述车联网类型的保留位。
  30. 根据权利要求16至29任一项所述的装置，其特征在于，所述第一类型为长期演进LTE蜂窝网络，所述第二类型为新空口NR蜂窝网络。
  31. 一种非临时计算机可读存储介质，所述存储介质上存储有计算机程序，其特征在于，所述计算机程序用于执行上述权利要求1-15所述的车联网同步方法。
  32. 一种车联网同步装置，其特征在于，所述装置用于第一终端，所述第一终端能够同时支持第一类型车联网直连通信和第二类型车联网直连通信，所述装置包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：
    接收到至少一个第一同步信号，所述第一同步信号是第一类型车联网直连通信和/或第二类型车联网直连通信的同步信号；
    根据所述第一同步信号确定用于第二类型车联网直连通信的同步参考信号；
    根据所述同步参考信号进行第二类型车联网直连通信。
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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020085853A1 (ko) * 2018-10-25 2020-04-30 엘지전자 주식회사 Nr v2x에서 동기화 정보를 전송할지 여부를 결정하는 방법 및 장치
CN113287345A (zh) * 2019-01-11 2021-08-20 诺基亚通信公司 侧链路同步更新
CN113473590B (zh) * 2020-03-31 2023-02-10 华为技术有限公司 一种通信方法及装置
US20240064787A1 (en) * 2021-01-08 2024-02-22 Beijing Xiaomi Mobile Software Co., Ltd. Method for information processing, communication device, and non-transitory computer storage medium
CN115604784A (zh) * 2021-06-28 2023-01-13 上海朗帛通信技术有限公司（Cn） 一种被用于无线通信的方法和设备
WO2024016234A1 (zh) * 2022-07-20 2024-01-25 北京小米移动软件有限公司 直连链路sl同步方法及装置、存储介质

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107295626A (zh) * 2016-04-01 2017-10-24 北京三星通信技术研究有限公司 一种v2x同步信号和psbch的发送方法和设备
CN107852685A (zh) * 2015-07-08 2018-03-27 Lg电子株式会社 在无线通信系统中发送/接收装置对装置通信终端的同步信号的方法和装置

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103686985B (zh) * 2012-09-25 2019-03-12 中兴通讯股份有限公司 用于设备到设备通信的设备发现方法及装置
WO2015010337A1 (zh) * 2013-07-26 2015-01-29 华为终端有限公司 同步信号的承载方法和用户设备
US10440670B2 (en) 2014-12-29 2019-10-08 Lg Electronics Inc. Method for performance device-to-device communication in wireless communication system and apparatus therefor
WO2016182293A1 (ko) 2015-05-08 2016-11-17 엘지전자 주식회사 무선 통신 시스템에서 v2x 통신을 수행하는 단말의 전송 전력 결정 방법 및 상기 방법을 이용하는 단말
CN107005958B (zh) 2015-09-24 2020-06-26 华为技术有限公司 同步方法、用户设备和基站
EP3358775B1 (en) 2015-10-01 2021-12-01 LG Electronics Inc. Method and terminal for transmitting reference signals in d2d communication
KR20170053573A (ko) 2015-11-05 2017-05-16 주식회사 케이티 차량 통신 제어 방법 및 그 장치
CN106998575B (zh) * 2016-01-22 2020-09-29 株式会社Kt 用于执行v2x通信的用户设备的移动性的控制方法及其装置
CN107027166B (zh) 2016-02-01 2019-08-23 电信科学技术研究院 一种节点的同步信息的发送方法、装置及节点
CN107046461B (zh) 2016-02-05 2022-06-07 北京三星通信技术研究有限公司 V2x终端时频同步的发送和接收处理方法及装置
CN114900278A (zh) 2016-02-05 2022-08-12 北京三星通信技术研究有限公司 V2x终端时频同步的发送和接收处理方法及装置
WO2017165797A1 (en) 2016-03-25 2017-09-28 Sharp Laboratories Of America, Inc. Synchronization method and apparatus for v2x communications
KR102467752B1 (ko) 2016-04-01 2022-11-16 주식회사 아이티엘 V2x 통신에서 동기화 방법 및 장치
US10356564B2 (en) * 2016-05-11 2019-07-16 Lg Electronics Inc. Method and apparatus for enhancing MBMS/SC-PTM procedures for V2X communication in wireless communication system
CN107689850A (zh) 2016-08-04 2018-02-13 北京信威通信技术股份有限公司 一种发送同步信号的方法及装置
CN107734557B (zh) 2016-08-11 2023-04-21 北京三星通信技术研究有限公司 一种v2x通信中避免对蜂窝通信干扰的方法和设备
US10349442B2 (en) 2016-08-12 2019-07-09 Qualcomm Incorporated Cross-carrier scheduling for V2X communication
KR102592455B1 (ko) * 2017-01-20 2023-10-23 삼성전자 주식회사 V2X(vehicle to everything) 통신 방법 및 디바이스와 V2X 통신의 송수신 방법 및 장치
CN111083732A (zh) * 2019-08-16 2020-04-28 中兴通讯股份有限公司 信息传输方法及装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107852685A (zh) * 2015-07-08 2018-03-27 Lg电子株式会社 在无线通信系统中发送/接收装置对装置通信终端的同步信号的方法和装置
CN107295626A (zh) * 2016-04-01 2017-10-24 北京三星通信技术研究有限公司 一种v2x同步信号和psbch的发送方法和设备

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HUAWEI ET AL.: "Discussion on Synchronization Support for Carrier Aggregation ofR15 Side link", 3GPP TSG RAN WG1 MEETING #90 R1-1712137, vol. RAN WG1, 20 August 2017 (2017-08-20), XP051314957 *
See also references of EP3833119A4 *

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