WO2021159508A1 - 时钟信息同步方法、装置、第一节点、终端及存储介质 - Google Patents

时钟信息同步方法、装置、第一节点、终端及存储介质 Download PDF

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Publication number
WO2021159508A1
WO2021159508A1 PCT/CN2020/075381 CN2020075381W WO2021159508A1 WO 2021159508 A1 WO2021159508 A1 WO 2021159508A1 CN 2020075381 W CN2020075381 W CN 2020075381W WO 2021159508 A1 WO2021159508 A1 WO 2021159508A1
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Prior art keywords
terminal
information
node
tsn
terminals
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PCT/CN2020/075381
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English (en)
French (fr)
Inventor
付喆
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2020/075381 priority Critical patent/WO2021159508A1/zh
Priority to CN202080080265.0A priority patent/CN114731266B/zh
Publication of WO2021159508A1 publication Critical patent/WO2021159508A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements

Definitions

  • This application relates to the field of communication technology, and in particular to a method, device, first node, terminal, and storage medium for clock information synchronization.
  • TSN Time Sensitive Network
  • the network is usually used as the master TSN clock node (master TSN clock node), and the UE is used as the slave TSN clock node (slave TSN clock node), and the network side (such as a base station) provides information for the terminal to synchronize with it.
  • master TSN clock node master TSN clock node
  • slave TSN clock node slave TSN clock node
  • the network side such as a base station
  • the TSN clock synchronization solution in the related art only supports the scenario where the network is the primary TSN clock node and the UE is the secondary TSN clock node, resulting in a narrow application scenario for TSN clock synchronization.
  • the embodiments of the present application provide a clock information synchronization method, device, first node, terminal, and storage medium.
  • the technical solution is as follows:
  • an embodiment of the present application provides a clock information synchronization method, the method is executed by a first node, and the first node is a network-side node device in a communication system, and the method includes:
  • a target terminal is determined from the respective terminals, and the target terminal is a terminal serving as a TSN clock node of the master time-sensitive network;
  • an embodiment of the present application provides a clock information synchronization method, the method is executed by a terminal, and the method includes:
  • the master node notification is sent when the first node determines that the terminal is the target terminal; the target terminal is each terminal in the communication system, as the master time sensitive The terminal of the network TSN clock node;
  • the TSN clock information of the terminal is synchronized to other terminals in the communication system except the terminal.
  • an embodiment of the present application provides a clock information synchronization method, the method is executed by a first node, and the first node is a terminal-side node device in a communication system, and the method includes:
  • a target terminal is determined from the respective terminals, and the target terminal is a terminal serving as a TSN clock node of the master time-sensitive network;
  • Send terminal indication information to a base station where the terminal indication information is used to instruct the base station to send a master node notification to the target terminal, and the master node notification is used to instruct the target terminal to synchronize TSN clock information to the communication system In addition to the target terminal in other terminals.
  • an embodiment of the present application provides a clock information synchronization method, wherein the method is executed by a terminal, and the method includes:
  • the master node notification is sent when the base station receives terminal indication information;
  • the terminal indication information is sent to the base station when the first node determines that the terminal is a target terminal
  • the target terminal is each terminal in the communication system as a terminal of the master time-sensitive network TSN clock node;
  • the TSN clock information of the terminal is synchronized to other terminals in the communication system except the terminal.
  • an embodiment of the present application provides a clock information synchronization device, the device is used in a first node, the first node is a node on the network side in a communication system, and the device includes:
  • a terminal information acquisition module which is used to acquire terminal information of each terminal in the communication system
  • a target terminal determining module configured to determine a target terminal from each terminal according to the respective terminal information of each terminal, and the target terminal is a terminal serving as a master time-sensitive network TSN clock node;
  • the notification sending module is configured to send a master node notification to the target terminal, where the master node notification is used to instruct the target terminal to synchronize TSN clock information to terminals other than the target terminal in the communication system.
  • an embodiment of the present application provides a clock information synchronization device for use in a terminal, and the device includes:
  • the notification receiving module is configured to receive a master node notification sent by the first node, where the master node notification is sent when the first node determines that the terminal is a target terminal; the target terminal is each terminal in the communication system , As the terminal of the TSN clock node of the master time-sensitive network;
  • the clock information synchronization module is used to synchronize the TSN clock information of the terminal to other terminals in the communication system except the terminal.
  • an embodiment of the present application provides a clock information synchronization device, the device is used in a first node, the first node is a terminal-side node device in a communication system, and the device includes:
  • a terminal information acquisition module which is used to acquire terminal information of each terminal in the communication system
  • a target terminal determining module configured to determine a target terminal from each terminal according to the respective terminal information of each terminal, and the target terminal is a terminal serving as a master time-sensitive network TSN clock node;
  • the indication information sending module is used to send terminal indication information to the base station, the terminal indication information is used to instruct the base station to send a master node notification to the target terminal, and the master node notification is used to instruct the target terminal to set the TSN clock
  • the information is synchronized to other terminals in the communication system except the target terminal.
  • an embodiment of the present application provides a clock information synchronization device, wherein the device is used in a terminal, and the device includes:
  • the notification receiving module is used to receive the master node notification sent by the base station; the master node notification is sent when the base station receives terminal indication information; the terminal indication information is when the first node determines that the terminal is the target terminal Sent to the base station; the target terminal is the terminal that serves as the master time-sensitive network TSN clock node in each terminal in the communication system;
  • the clock information synchronization module is used to synchronize the TSN clock information of the terminal to other terminals in the communication system except the terminal.
  • an embodiment of the present application provides a terminal.
  • the terminal includes a processor, a memory, and a transceiver.
  • the memory stores a computer program, and the computer program is used to be executed by the processor to implement the foregoing Clock information synchronization method.
  • an embodiment of the present application provides a first node, the first node includes a processor, a memory, and a transceiver, the memory stores a computer program, and the computer program is configured to be executed by the processor , In order to realize the above-mentioned clock information synchronization method.
  • an embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored, and the computer program is loaded and executed by a processor to implement the clock information synchronization method described above.
  • the present application provides a computer program product, which when the computer program product runs on a terminal, causes the terminal to execute the above clock information synchronization method.
  • the first node determines that each terminal in the communication system or a specific terminal in the communication system is the target terminal of the master time-sensitive network TSN clock node according to the terminal information of each terminal, it sends a master node notification to the target terminal to trigger the target terminal to send the TSN
  • the clock information is synchronized to other terminals or other related terminals in the communication system except the target terminal, so as to realize the TSN clock synchronization in the scenario where the terminal is the master TSN clock node.
  • FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of the present application.
  • FIG. 2 is a flowchart of a clock information synchronization method provided by an embodiment of the present application
  • FIG. 3 is a flowchart of a clock information synchronization method provided by an embodiment of the present application.
  • FIG. 4 is a flowchart of a clock information synchronization method provided by an embodiment of the present application.
  • FIG. 5 is a flowchart of a clock information synchronization method provided by an embodiment of the present application.
  • FIG. 6 is a flowchart of a clock information synchronization method provided by an embodiment of the present application.
  • FIG. 7 is a flowchart of a clock information synchronization method provided by an embodiment of the present application.
  • FIG. 8 is a block diagram of a clock information synchronization device provided by an embodiment of the present application.
  • FIG. 9 is a block diagram of a clock information synchronization device provided by an embodiment of the present application.
  • FIG. 10 is a block diagram of a clock information synchronization device provided by an embodiment of the present application.
  • FIG. 11 is a block diagram of a clock information synchronization device provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a first node provided by an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of a first node provided by an embodiment of the present application.
  • FIG. 1 shows a schematic diagram of a network architecture of a communication system provided by an embodiment of the present application.
  • the network architecture may include: a terminal 10 and a base station 20.
  • the number of terminals 10 is usually multiple, and one or more terminals 10 may be distributed in a cell managed by each base station 20.
  • the terminal 10 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, as well as various forms of user equipment (UE), mobile stations ( Mobile Station, MS), terminal device (terminal device), etc.
  • UE user equipment
  • MS Mobile Station
  • terminal device terminal device
  • the base station 20 is a device deployed in an access network to provide the terminal 20 with a wireless communication function.
  • the base station 20 may include various forms of macro base stations, micro base stations, relay stations, access points, and so on.
  • the names of devices with base station functions may be different.
  • they are called gNodeB or gNB.
  • the name "base station” may change.
  • the above-mentioned devices for providing wireless communication functions for the terminal 20 are collectively referred to as a base station.
  • the aforementioned network architecture also includes other network devices, such as: Central Network Control (CNC), Access and Mobility Management Function, AMF ) Equipment, session management function (SMF) or user plane function (UPF) equipment, etc.
  • CNC Central Network Control
  • AMF Access and Mobility Management Function
  • SMF session management function
  • UPF user plane function
  • the "5G NR system" in the embodiments of the present disclosure may also be referred to as a 5G system or an NR system, but those skilled in the art can understand its meaning.
  • the technical solutions described in the embodiments of the present disclosure may be applicable to the 5G NR system, and may also be applicable to the subsequent evolution system of the 5G NR system.
  • R16 5G IIoT needs to support the transmission of services such as Factory automation, Transport Industry, and Electrical Power Distribution in 5G systems.
  • the 5C network serves as the TSN bridge (TSN bridge) to provide services for the TSN network and services.
  • TSN bridge TSN bridge
  • the NR system needs to provide lower delay guarantees and higher clock synchronization accuracy, so that when industrial automation services are transmitted in the 5G network, the operation and connection of each point of the mechanical operation are accurate and consistent Time required.
  • R16 mainly supports scenarios where the network is used as the master TSN clock node and the UE is used as the slave TSN clock node.
  • the corresponding TSN clock information is notified from the base station to the UE, and the UE synchronizes with the base station.
  • the UE and the base station need to be synchronized, and the corresponding base station provides reference time information to the UE so that the UE and the base station are synchronized. Further, in order to achieve a time accuracy of 1 us, the network notifies the TSN of time synchronization information and more accurate time synchronization accuracy information, and the reference clock information is included in TimeReferenceInfo IE. It can be sent to the UE through broadcast or unicast, and the granularity of the time synchronization accuracy is 10 ns.
  • R16 it mainly supports scenarios where the network is used as the master TSN clock node and the UE is used as the slave TSN clock node.
  • the network provides information for the UE to synchronize with it.
  • R17 it is necessary to support the scenario where the UE serves as the master TSN clock node. Because there are multiple UEs in the serving cell, and the clock accuracy of different UEs is different, the clock local oscillator is different, the equipment error is different, etc., which UE is selected as the mater TSN clock node is a matter to be determined, otherwise it will cause the system TSN The problem of out-of-synchronization, or the problem of insufficient synchronization accuracy.
  • the subsequent embodiments of this application propose a clock synchronization solution in a scenario where the UE is supported as a master TSN clock node, thereby extending the application scenario of TSN clock synchronization.
  • FIG. 2 shows a flowchart of a clock information synchronization method provided by an embodiment of the present application.
  • the method can be applied to the first node in the communication system corresponding to the network architecture shown in FIG.
  • the node is a network-side node device in the above-mentioned communication system, and the method may include the following steps:
  • Step 201 Obtain terminal information of each terminal in the communication system.
  • Step 202 Determine a target terminal from each terminal according to the respective terminal information of each terminal.
  • the target terminal is each terminal in the communication system or a specific terminal as a terminal of a master time-sensitive network TSN clock node.
  • each of the foregoing terminals may be all terminals in a cell served by the base station.
  • each of the foregoing terminals may be some terminals in a cell served by the base station, for example, a terminal that supports TSN services, for example, a terminal that supports certain designated TSN services.
  • the foregoing target terminal may be determined by the base station in each terminal, or the target terminal may also be determined by a node determination device other than the base station in each terminal and notified to the base station.
  • the above-mentioned target terminal may be determined by the base station in at least one specific terminal, or the target terminal may also be determined by a node determination device other than the base station and notified to the base station after being determined in at least one specific terminal.
  • Step 203 Send a master node notification to the target terminal.
  • the master node notification is used to instruct the target terminal to synchronize the TSN clock information to other terminals in the communication system except the target terminal.
  • the master node notification is used to notify that the target terminal is the master TSN clock node.
  • the base station may also send the master node notification to each terminal in the communication system, except for the target terminal; or, the base station in addition to the target terminal
  • the terminal may also send the master node notification to each terminal corresponding to the TSN service supported by the master node in the communication system, except for the target terminal.
  • the first node may also receive TSN clock information sent by the target terminal, and send the TSN clock information to the communication system, except for the target terminal Other terminals.
  • TSN clock information may also be referred to as TSN reference clock information, which is information used for clock synchronization between the above-mentioned terminals.
  • the TSN clock information may include at least one of TSN time, TSN clock domain identifier, and TSN type.
  • the TSN clock information may include at least one of TSN time, inaccuracy, reference system frame number reference SFN, time information type time info Type, TSN clock domain identifier, and propagation delay compensation information.
  • the TSN time may include at least one of arrival time, departure time, and reference time.
  • the base station/UPF device can synchronize the clock with the target terminal through the TSN clock information.
  • the target terminal can establish a specific data radio bearer (DRB) or a specific quality of service flow (QoS flow) to support the target terminal to send TSN clock information to the base station/UPF device .
  • DRB data radio bearer
  • QoS flow quality of service flow
  • the base station/UPF device after the base station/UPF device receives the TSN clock information sent by the target terminal, it can send the TSN clock information to the communication system, other than the target terminal, or, in addition to the target terminal. TSN clock information other related terminals of TSN, so that other terminals can synchronize their clocks with the base station and target terminal.
  • the first node determines, according to the terminal information of each terminal, each terminal or specific terminal in the communication system as the target terminal of the master time-sensitive network TSN clock node, Send a master node notification to the target terminal to trigger the target terminal to synchronize the TSN clock information to the communication system, except for the target terminal or other related terminals, so as to realize the TSN in the scenario where the terminal is the master TSN clock node Clock synchronization.
  • FIG. 3 shows a flowchart of a clock information synchronization method provided by an embodiment of the present application.
  • the method can be applied to the terminal of the network architecture shown in FIG. 1.
  • the method may include the following steps:
  • Step 301 Receive a master node notification sent by the first node.
  • the master node notification is sent when the first node determines that the terminal is a target terminal; the target terminal is each terminal in the communication system and serves as the master time-sensitive network The terminal of the TSN clock node.
  • Step 302 Synchronize the TSN clock information of the terminal to other terminals in the communication system except the terminal.
  • the first node sends the master to the target terminal when determining each terminal or specific terminal in the communication system as the target terminal of the master time-sensitive network TSN clock node.
  • Node notification In response to receiving the notification from the master node, the target terminal synchronizes the TSN clock information of the terminal to the communication system, except for the target terminal or other related terminals, so that the terminal is used as the master TSN clock node.
  • the TSN clock in the scene is synchronized.
  • FIG. 4 shows a flowchart of a clock information synchronization method provided by an embodiment of the present application.
  • the method can be applied to the first node in the communication system corresponding to the network architecture shown in FIG.
  • the node is the terminal-side node device in the above-mentioned communication system, and the method may include the following steps:
  • Step 401 Obtain terminal information of each terminal in the communication system.
  • Step 402 According to the respective terminal information of the respective terminals, a target terminal is determined from the respective terminals, and the target terminal is a terminal serving as a TSN clock node of the master time-sensitive network.
  • Step 403 Send terminal indication information to the base station, the terminal indication information is used to instruct the base station to send the master node notification to the target terminal, and the master node notification is used to instruct the target terminal to synchronize the TSN clock information to the communication system except Terminals other than the target terminal.
  • the first node determines, according to the terminal information of each terminal, each terminal or specific terminal in the communication system as the target terminal of the master time-sensitive network TSN clock node, Send a master node notification to the target terminal to trigger the target terminal to synchronize the TSN clock information to the communication system, except for the target terminal or other related terminals, so as to realize the TSN in the scenario where the terminal is the master TSN clock node Clock synchronization.
  • FIG. 5 shows a flowchart of a clock information synchronization method provided by an embodiment of the present application.
  • the method can be applied to the terminal of the network architecture shown in FIG. 1.
  • the method may include the following steps:
  • Step 501 Receive a master node notification sent by a base station; the master node notification is sent when the base station receives terminal indication information; the terminal indication information is sent to the base station when the first node determines that the terminal is a target terminal;
  • the target terminal is the terminal that serves as the master time-sensitive network TSN clock node among the terminals in the communication system.
  • Step 502 Synchronize the TSN clock information of the terminal to other terminals in the communication system except the terminal.
  • the first node sends the master to the target terminal when determining each terminal or specific terminal in the communication system as the target terminal of the master time-sensitive network TSN clock node.
  • Node notification In response to receiving the notification from the master node, the target terminal synchronizes the TSN clock information of the terminal to the communication system, except for the target terminal or other related terminals, so that the terminal is used as the master TSN clock node.
  • the TSN clock in the scene is synchronized.
  • the target terminal may be determined by a network-side node device including a base station, or may be determined by a terminal-side node device in the system. Subsequent embodiments of this application will take these two cases as examples respectively for description.
  • FIG. 6 shows a flowchart of a clock information synchronization method provided by an embodiment of the present application.
  • the method can be applied to the network architecture shown in FIG. 1, and is executed interactively by the first node and the terminal in FIG. ,
  • the first node is a network side node device, and the method may include the following steps:
  • Step 601 The first node obtains terminal information of each terminal in the communication system.
  • the first node may be a base station, a central control node CNC, an access and mobility management function AMF device, or a session management function SMF device.
  • the foregoing terminal information may be obtained from a base station, TSN equipment, core network, CNC, or various terminals.
  • the first node determines a target terminal according to the respective terminal information of each terminal.
  • the target terminal is each terminal in the communication system or a specific terminal in the communication system as a terminal of the master time-sensitive network TSN clock node.
  • the terminal information includes at least one of terminal capability information, TSN service information, cell coverage information, terminal movement information, terminal location information, and terminal identification information;
  • the terminal capability information is used to indicate whether the corresponding terminal supports a high-precision clock, and whether the corresponding terminal has at least one of the capabilities of being a master TSN clock node;
  • the TSN service information is used to indicate whether the corresponding terminal supports or will transmit TSN services, whether a specific DRB/QoS flow can be established or can be established, and whether the corresponding terminal supports or will transmit the service characteristics of the TSN service, and whether it has the target terminal At least one of the logos.
  • the terminal identification information is used to indicate whether the corresponding terminal has a designated terminal identification.
  • the first node may determine a qualified terminal as the target terminal through one of the foregoing terminal capability information, TSN service information, cell coverage information, terminal movement information, terminal location information, and terminal identification information.
  • the first node may screen out a certain type of terminals that support high-precision clocks and have the ability to be a master TSN clock node according to the terminal capability information of each terminal, and serve as the target terminal.
  • the first node may also screen out the TSN service support based on the TSN service information of each terminal, and/or a certain terminal among the terminals whose service characteristics of the TSN service meet the specified characteristics is used as the target terminal.
  • the first node may also screen out a certain terminal among the terminals belonging to the designated cell as the target terminal according to the cell coverage information of each terminal.
  • the first node may also filter out a certain terminal among the terminals with a fixed location or a slower moving speed as the target terminal according to the terminal movement information of each terminal.
  • the first node may also screen out a certain terminal among the terminals within a certain fixed geographic range as the target terminal according to the terminal location information of each terminal.
  • the first node may also screen out the terminal with the designated terminal identification as the target terminal according to the terminal identification information of each terminal.
  • the first node may also screen the target terminal based on the two or more types of information in sequence according to a preset screening order.
  • the first node can first filter out the first set of terminals that support high-precision clocks and have the ability to be the master TSN clock node based on the terminal capability information, and then start from the first set of terminals.
  • the second terminal set that supports the TSN service is screened out from the terminal set, and/or the service characteristic of the TSN service meets the specified characteristic, and then a terminal is determined from the second terminal set as the target terminal.
  • the first node is any one of CNC, access and mobility management function AMF equipment, session management function SMF or user plane function UPF equipment.
  • Step 603 The first node sends a master node notification to the target terminal, and correspondingly, the target terminal receives the master node notification.
  • the base station may send the master node notification to the target terminal by means of broadcast and/or dedicated radio resource control (Radio Resource Control, RRC) messages.
  • RRC Radio Resource Control
  • the base station may also notify the target terminal by the non-access stratum (such as AMF) through a non-access stratum (Non-Access Stratum, NAS) message.
  • AMF non-access stratum
  • NAS Non-Access Stratum
  • the first node may send the master node notification to all terminals under the base station or serving cell, or the first node may notify the master node to send the terminal that executes/supports the TSN service.
  • the first node when the first node is a CNC, AMF, SMF, or UPF device, the first node may send terminal indication information to the base station, where the terminal indication information is used to instruct the base station to send a master node notification to the target terminal.
  • the terminal indication information includes:
  • the terminal ID of the target terminal, the serving cell ID of the target terminal, the serving base station ID of the target terminal, the TSN clock domain ID of the target terminal, the DRB ID that transmits TSN clock information is established or will be established, established or will be established At least one of the QoS flow identifier for transmitting TSN clock information and the TSN service identifier of the target terminal.
  • Step 604 The target terminal generates TSN clock information.
  • the TSN clock information includes at least one of TSN time (including reference time, such as time), inaccuracy, reference system frame number reference SFN, time information type time info Type, and TSN clock domain identifier.
  • the TSN clock information further includes: delay compensation indication information, where the delay compensation indication information is used to indicate whether the propagation delay is compensated.
  • the TSN clock information may include at least one of TSN time (such as arrival time, departure time, etc.), TSN clock domain identifier, and TSN type.
  • the target terminal establishes or uses the established specific DRB or specific QoS flow to support the target terminal to send TSN clock information to the base station.
  • the target terminal determines that it is selected as the master TSN clock node, and the target terminal generates TSN clock information.
  • Step 605 The target terminal synchronizes terminal information to other terminals in the communication system except the target terminal. Correspondingly, other terminals receive the TSN clock information.
  • the target terminal may send the TSN clock information to the base station or the user plane function UPF device, so that the base station or the UPF device sends the TSN clock information to other terminals.
  • the target terminal may send the TSN clock information to other terminals through direct communication.
  • the target terminal may periodically synchronize the TSN clock information to other terminals.
  • the target terminal may also synchronize the TSN clock information to the other terminal when detecting a designated trigger condition.
  • the TSN clock information includes at least one of reference time, inaccuracy, reference system frame number reference SFN, time information type time info Type, and TSN clock domain identifier.
  • the TSN clock information further includes: delay compensation indication information, where the delay compensation indication information is used to indicate whether the propagation delay is compensated.
  • the target terminal after receiving the master node notification sent by the base station, the target terminal determines that it is selected as the master TSN clock node, and the target terminal sends TSN clock information to the base station.
  • the TSN clock information sent for the first time may be carried in a dedicated RRC message.
  • the target terminal After the target terminal sends the above-mentioned TSN clock information for the first time, it can also synchronize the updated TSN clock information with other terminals according to a certain period.
  • the updated TSN clock information can be carried in any of dedicated RRC messages, MAC CE, or physical layer signaling.
  • the TSN clock information may include at least one of TSN time (such as arrival time, departure time, etc.), TSN clock domain identifier, and TSN type.
  • the target terminal establishes or uses the established specific DRB or specific QoS flow to support the target terminal to send TSN clock information to the base station. Using this DRB or QoS flow, the target terminal sends the first or subsequent TSN information to the network.
  • the above-mentioned updated TSN clock information may also be triggered by events, for example, TSN clock information arrival, or TSN clock information update, or TSN clock information change event, or TSN clock information change granularity greater than or equal to a threshold event, and so on.
  • events for example, TSN clock information arrival, or TSN clock information update, or TSN clock information change event, or TSN clock information change granularity greater than or equal to a threshold event, and so on.
  • the first node when the first node is a base station or a UPF device, the first node may receive the TSN clock information sent by the target terminal; and send the TSN clock information to other terminals in the communication system except the target terminal. Correspondingly, other terminals receive the TSN clock information.
  • the first node when the first node is a base station, the first node may receive the TSN clock information periodically sent by the target terminal;
  • the first node When the first node is a base station, the first node may receive the TSN clock information sent by the target terminal when the specified trigger condition is detected.
  • the first node may notify other terminals in the communication system except the target terminal of the TSN clock information through the broadcast of the base station (such as SIB9) and/or a dedicated RRC message.
  • other terminals can receive the TSN clock information through broadcast (such as SIB9) and/or dedicated RRC messages.
  • the base station sends the received TSN clock information to other terminals through a dedicated DRB or a specific QoS flow.
  • the base station after receiving the TSN clock information, the base station also performs TSN clock synchronization with the target terminal according to the TSN clock information.
  • the target terminal may send TSN clock information to other terminals in each of the foregoing terminals, that is, the foregoing TSN clock information may also be directly sent by the target terminal to other terminals.
  • the target terminal can send the above-mentioned TSN clock information to other terminals through the sidelink mode of direct communication.
  • the UPF when the target terminal sends the TSN clock information to the UPF device, and the UPF device sends the TSN clock information to the other terminals, the UPF can directly send the TSN clock information sent by the target terminal. Send to the above-mentioned other terminal, or the UPF may also correct the above-mentioned TSN clock information sent by the target terminal and send it to the above-mentioned other terminal.
  • step 606 the other terminals perform clock synchronization with the target terminal according to the TSN clock information.
  • the terminal if the terminal is not selected as the master TSN clock node, after receiving the TSN clock information sent by the base station/UPF device, the terminal will communicate with the base station/UPF device and the target terminal according to the TSN clock information. Time synchronization.
  • the clock information sent by the base station/UPF device may be carried in at least one of the following information: broadcast (such as SIB9), dedicated RRC message, dedicated DRB or specific QoS flow.
  • the first node sends the master to the target terminal when determining each terminal or specific terminal in the communication system as the target terminal of the master time-sensitive network TSN clock node.
  • Node notification In response to receiving the notification from the master node, the target terminal synchronizes the TSN clock information of the terminal to the communication system, except for the target terminal or other related terminals, so that the terminal is used as the master TSN clock node.
  • the TSN clock in the scene is synchronized.
  • the network side node device determines the solution as the target terminal of the master TSN clock node.
  • the network side can have more information to determine the selection of a suitable terminal, which ensures that the 5G system is controlled by the network. At the same time, the system TSN synchronization and synchronization accuracy requirements are guaranteed.
  • the above-mentioned first node may also be a terminal-side node device in a communication system, that is, the target terminal is determined by a designated terminal or a designated terminal group in each terminal.
  • FIG. 7 shows a flowchart of a clock information synchronization method provided by an embodiment of the present application.
  • the method can be applied to the network architecture shown in FIG. 1, and is executed interactively by the first node and the terminal in FIG.
  • the first node is a terminal-side node device. Taking the first node as a designated terminal or a designated terminal group in each terminal in the communication system as an example, the method may include the following steps:
  • Step 701 The first node obtains terminal information of each terminal in the communication system.
  • the designated terminal when the solution shown in the embodiment of the present application is executed by a designated terminal, that is, when the first node is a designated terminal, the designated terminal may be: the first terminal transmitting TSN service among the foregoing terminals; or, in each terminal Terminals with a fixed geographic location; or, among the terminals, the terminals indicated by the base station; or, among the terminals, which are determined by network-side equipment other than the base station; or, in each terminal that establishes or supports specific DRB or QoS flow Terminal; or, a terminal with a designated terminal identifier in each terminal.
  • the designated terminal group is: a terminal group determined through negotiation between the terminals; or , The terminal group in each terminal indicated by the base station; or, the terminal group in each terminal determined by a network side device other than the base station.
  • the network side equipment other than the base station may be CNC, AMF equipment, or SMF equipment, and so on.
  • Step 702 The first node determines the target terminal from each terminal according to the respective terminal information of each terminal.
  • the target terminal is a terminal that serves as a clock node of the master time-sensitive network TSN in each terminal in the communication system.
  • Step 703 The first node sends terminal indication information to the base station; correspondingly, the base station receives the terminal indication information.
  • the terminal indication information is used to instruct the base station to send a master node notification to the target terminal, and the master node notification is used to instruct the target terminal to synchronize the TSN clock information to other terminals in the communication system except the target terminal.
  • the method for the designated terminal or designated terminal group to determine the target terminal is similar to the method for the network side node device to determine the target terminal in the embodiment shown in FIG. 6, that is, the target terminal is determined from each terminal according to the terminal information of each terminal. , I won’t repeat it here.
  • the terminal information of each terminal mentioned above can be obtained by a designated terminal or a designated terminal group from a base station, a core network, a CNC or a designated terminal or a terminal other than the designated terminal group.
  • the terminal indication information includes:
  • the terminal identifier of the target terminal the serving cell identifier where the target terminal is located, the serving base station identifier where the target terminal is located, the TSN clock domain identifier of the target terminal, the DRB identifier that establishes or will establish the transmission of TSN clock information, establishes or will establish At least one of the QoS flow identifier for transmitting TSN clock information and the TSN service identifier of the target terminal.
  • the first node may also send terminal indication information to at least one of CNC, AMF equipment, SMF equipment, or user plane function UPF equipment.
  • step 704 the base station sends a master node notification to the related device, and correspondingly, the related device receives the master node notification.
  • the base station may send the master node notification to the target terminal by means of broadcast and/or dedicated RRC messages.
  • the base station may also notify the target terminal by the non-access layer (such as AMF) through NAS messages.
  • AMF non-access layer
  • the base station may send the above-mentioned master node notification to all terminals under the base station or serving cell, or the base station may notify the above-mentioned master node to send terminals that execute/support the TSN service.
  • the base station may also send the above terminal indication information to at least one of CNC, AMF equipment, SMF equipment or UPF equipment.
  • Step 705 The target terminal generates TSN clock information.
  • the TSN clock information includes at least one of reference time, inaccuracy, reference system frame number reference SFN, time information type time info Type, and TSN clock domain identifier.
  • the TSN clock information further includes: delay compensation indication information, where the delay compensation indication information is used to indicate whether the propagation delay is compensated.
  • the TSN clock information may include at least one of TSN time (such as arrival time, departure time, etc.), TSN clock domain identifier, and TSN type.
  • the target terminal establishes or uses the established specific DRB or specific QoS flow to support the target terminal to send TSN clock information to the base station.
  • the target terminal determines that it is selected as the master TSN clock node, and the target terminal generates TSN clock information.
  • Step 706 The target terminal synchronizes the TSN clock information to other terminals in the communication system except the target terminal.
  • the target terminal may periodically synchronize the TSN clock information to the other terminals;
  • the target terminal can synchronize the TSN clock information to other terminals when the specified trigger condition is detected.
  • the target terminal sends TSN clock information to the base station, and correspondingly, the base station receives the TSN clock information sent by the target terminal. After that, the base station sends the TSN clock information to other terminals in the communication system except the target terminal, and correspondingly, other terminals receive the TSN clock information.
  • the terminal periodically sends TSN clock information to the base station, and correspondingly, the base station receives the TSN clock information periodically sent by the target terminal.
  • the TSN clock information includes at least one of reference time, inaccuracy, reference system frame number reference SFN, time information type time info Type, and TSN clock domain identifier.
  • the TSN clock information further includes: delay compensation indication information, where the delay compensation indication information is used to indicate whether the propagation delay is compensated.
  • the target terminal after receiving the master node notification sent by the base station, the target terminal determines that it is selected as the master TSN clock node, and the target terminal sends TSN clock information to the base station.
  • the TSN clock information sent for the first time may be carried in a dedicated RRC message.
  • the target terminal After the target terminal sends the above-mentioned TSN clock information for the first time, it may also send updated TSN clock information to the base station according to a certain period.
  • the updated TSN clock information may be carried in any of dedicated RRC messages, MAC CE, or physical layer signaling.
  • the TSN clock information may include at least one of TSN time (such as arrival time, departure time, etc.), TSN clock domain identifier, and TSN type.
  • the target terminal establishes or uses the established specific DRB or specific QoS flow to support the target terminal to send TSN clock information to the base station. Use this DRB or QoS flow to send the first or subsequent TSN information to the network.
  • the aforementioned updated TSN clock information may also be triggered by events, such as the arrival of TSN clock information, or TSN clock information update, or TSN clock information change event, or TSN clock information change granularity greater than or equal to a threshold event, and so on.
  • the target terminal may also send master node indication information to other terminals in each terminal, the master node indication information, and the master node indication information is used to indicate that the terminal is a master time sensitive The terminal of the network TSN clock node.
  • the target terminal may send master node indication information to other terminals in each terminal through the direct communication sidelink.
  • the above-mentioned target terminal is not a designated terminal or does not belong to a designated terminal group
  • the above-mentioned other terminals may include the above-mentioned designated terminal or a designated terminal group.
  • the base station may notify other terminals in the communication system except the target terminal by broadcasting (such as SIB9) and/or a dedicated RRC message.
  • other terminals can receive the TSN clock information through broadcast (such as SIB9) and/or dedicated RRC messages.
  • the base station sends the received TSN clock information to other terminals through a dedicated DRB or a specific QoS flow.
  • the base station after receiving the TSN clock information, the base station further performs TSN clock synchronization with the target terminal according to the TSN clock information.
  • the target terminal may also directly send the above-mentioned TSN clock information to other terminals.
  • the target terminal can send the above-mentioned TSN clock information to other terminals through the direct communication sidelink mode.
  • the target terminal may also send the foregoing TSN clock information to the UPF device, and the UPF device sends the TSN clock information to the foregoing other terminals.
  • the UPF may directly send the above-mentioned TSN clock information sent by the target terminal to the above-mentioned other terminals, or the UPF may also modify the above-mentioned TSN clock information sent by the target terminal and send it to the above-mentioned other terminals.
  • step 707 the other terminals perform clock synchronization with the target terminal according to the TSN clock information.
  • the terminal if the terminal is not selected as the master TSN clock node, after receiving the TSN clock information sent by the base station, the terminal performs time synchronization with the base station and the target terminal according to the TSN clock information.
  • the clock information sent by the base station may be carried in at least one of the following information: broadcast (such as SIB9), dedicated RRC message, dedicated DRB or specific QoS flow.
  • the first node sends the master to the target terminal when determining each terminal or specific terminal in the communication system as the target terminal of the master time-sensitive network TSN clock node.
  • Node notification In response to receiving the notification from the master node, the target terminal synchronizes the TSN clock information of the terminal to the communication system, except for the target terminal or other related terminals, so that the terminal is used as the master TSN clock node.
  • the TSN clock in the scene is synchronized.
  • the solution of determining the target terminal as the master TSN clock node by the designated terminal/designated terminal group can provide a more flexible and real-time master TSN clock node selection method.
  • FIG. 8 shows a block diagram of a clock information synchronization device provided by an embodiment of the present application.
  • the device has the function of realizing the above example of the clock information synchronization method, and the function can be realized by hardware, or by hardware executing corresponding software.
  • the device may be the first node described above, or may be set in the first node; the first node may be a network-side node device. As shown in Figure 8, the device may include:
  • the terminal information acquisition module 801 is configured to acquire terminal information of each terminal in the communication system
  • the target terminal determining module 802 is configured to determine a target terminal from each terminal according to the respective terminal information of each terminal, and the target terminal is a terminal serving as a master time-sensitive network TSN clock node;
  • the notification sending module 803 is configured to send a master node notification to the target terminal, where the master node notification is used to instruct the target terminal to synchronize TSN clock information to other terminals in the communication system except the target terminal .
  • the first node is a base station, a central control node CNC, an access and mobility management function AMF device, a session management function SMF device, or a user plane function UPF device.
  • the notification sending module 803 is configured to send terminal indication information to the base station when the first node is CNC, AMF equipment, SMF equipment, or UPF equipment, where the terminal indication information is used to instruct the base station Sending the master node notification to the target terminal.
  • the terminal indication information includes:
  • the device further includes:
  • a clock information receiving module configured to receive the TSN clock information sent by the target terminal when the first node is a base station or a UPF device;
  • the clock information sending module is used to send the TSN clock information to terminals other than the target terminal in the communication system.
  • the clock information receiving module is configured to:
  • the terminal information includes at least one of terminal capability information, TSN service information, cell coverage information, terminal movement information, terminal location information, and terminal identification information;
  • the terminal capability information is used to indicate whether the corresponding terminal supports a high-precision clock, and whether the corresponding terminal has at least one of the capabilities of being a master TSN clock node;
  • the TSN service information is used to indicate whether the corresponding terminal supports or will transmit the TSN service, whether the corresponding terminal establishes or supports the establishment of a specific DRB or QoS flow, and the corresponding terminal supports or will transmit the service characteristics of the TSN service At least one of
  • the terminal identification information is used to indicate whether the corresponding terminal has a designated terminal identification.
  • the first node determines, according to the terminal information of each terminal, each terminal or specific terminal in the communication system as the target terminal of the master time-sensitive network TSN clock node, Send a master node notification to the target terminal to trigger the target terminal to synchronize the TSN clock information to the communication system, except for the target terminal or other related terminals, so as to realize the TSN in the scenario where the terminal is the master TSN clock node Clock synchronization.
  • FIG. 9 shows a block diagram of a clock information synchronization device provided by an embodiment of the present application.
  • the device has the function of realizing the above example of the clock information synchronization method, and the function can be realized by hardware, or by hardware executing corresponding software.
  • the device can be the terminal described above, or it can be set in the terminal. As shown in Figure 9, the device may include:
  • the notification receiving module 901 is configured to receive a master node notification sent by a first node, where the master node notification is sent when the first node determines that the terminal is a target terminal; the target terminal is each of the communication systems Among the terminals, as the terminal of the master time-sensitive network TSN clock node;
  • the clock information synchronization module 902 is configured to synchronize the TSN clock information of the terminal to other terminals in the communication system except the terminal.
  • the clock information synchronization module 902 is configured to:
  • the TSN clock information is sent to the other terminal through direct communication.
  • the device further includes:
  • the master node indication module is configured to send master node indication information to the other terminals, where the master node indication information is used to indicate that the terminal is a terminal serving as a master time-sensitive network TSN clock node.
  • the clock information synchronization module is configured to:
  • the TSN clock information is synchronized to the other terminal.
  • the first node sends the master to the target terminal when determining each terminal or specific terminal in the communication system as the target terminal of the master time-sensitive network TSN clock node.
  • Node notification In response to receiving the notification from the master node, the target terminal synchronizes the TSN clock information of the terminal to the communication system, except for the target terminal or other related terminals, so that the terminal is used as the master TSN clock node.
  • the TSN clock in the scene is synchronized.
  • FIG. 10 shows a block diagram of a clock information synchronization device provided by an embodiment of the present application.
  • the device has the function of realizing the above example of the clock information synchronization method, and the function can be realized by hardware, or by hardware executing corresponding software.
  • the apparatus may be the first node introduced above, or may be set in the first node; the first node may be a terminal side node device. As shown in Figure 10, the device may include:
  • the terminal information acquisition module 1001 is configured to acquire terminal information of each terminal in the communication system
  • the target terminal determining module 1002 is configured to determine a target terminal from each terminal according to the respective terminal information of each terminal, and the target terminal is a terminal serving as a master time-sensitive network TSN clock node;
  • the indication information sending module 1003 is configured to send terminal indication information to a base station, where the terminal indication information is used to instruct the base station to send a master node notification to the target terminal, and the master node notification is used to instruct the target terminal to set the TSN
  • the clock information is synchronized to other terminals in the communication system except the target terminal.
  • the designated terminal is:
  • the first terminal transmitting the TSN service among the terminals;
  • a terminal with a fixed geographic location among the terminals Or, a terminal with a fixed geographic location among the terminals;
  • a terminal determined by a network side device other than the base station among the terminals Or, a terminal determined by a network side device other than the base station among the terminals;
  • a terminal that establishes or supports a specific DRB or QoS flow among the terminals;
  • a terminal with a designated terminal identifier among the terminals Or, a terminal with a designated terminal identifier among the terminals.
  • the designated terminal group is:
  • the terminal group determined through negotiation between the respective terminals
  • a terminal group determined by a network side device other than the base station in each of the terminals is a terminal group determined by a network side device other than the base station in each of the terminals.
  • the instruction information sending module 1003 is also used to:
  • the terminal indication information includes:
  • the terminal information includes at least one of terminal capability information, TSN service information, cell coverage information, terminal movement information, terminal location information, and terminal identification information;
  • the terminal capability information is used to indicate whether the corresponding terminal supports a high-precision clock, and whether the corresponding terminal has at least one of the capabilities of being a master TSN clock node;
  • the TSN service information is used to indicate whether the corresponding terminal supports or will transmit the TSN service, whether the corresponding terminal establishes or supports the establishment of a specific DRB or QoS flow, and the corresponding terminal supports or will transmit the service characteristics of the TSN service At least one of
  • the terminal identification information is used to indicate whether the corresponding terminal has a designated terminal identification.
  • the first node determines, according to the terminal information of each terminal, each terminal or specific terminal in the communication system as the target terminal of the master time-sensitive network TSN clock node, Send a master node notification to the target terminal to trigger the target terminal to synchronize the TSN clock information to the communication system, except for the target terminal or other related terminals, so as to realize the TSN in the scenario where the terminal is the master TSN clock node Clock synchronization.
  • FIG. 11 shows a block diagram of a clock information synchronization device provided by an embodiment of the present application.
  • the device has the function of realizing the above example of the clock information synchronization method, and the function can be realized by hardware, or by hardware executing corresponding software.
  • the device can be the terminal described above, or it can be set in the terminal. As shown in Figure 11, the device may include:
  • the notification receiving module 1101 is configured to receive a master node notification sent by a base station; the master node notification is sent when the base station receives terminal indication information; the terminal indication information is determined by the first node that the terminal is a target terminal The target terminal is sent to the base station at the time; the target terminal is the terminal that serves as the master time-sensitive network TSN clock node in each terminal in the communication system;
  • the clock information synchronization module 1102 is used to synchronize the TSN clock information of the terminal to other terminals in the communication system except the terminal.
  • the clock information synchronization module 1102 is configured to:
  • the TSN clock information is sent to the other terminal through direct communication.
  • the device further includes:
  • the master node indication module is configured to send master node indication information to the other terminals, where the master node indication information is used to indicate that the terminal is a terminal serving as a master time-sensitive network TSN clock node.
  • the clock information synchronization module 1102 is configured to:
  • the TSN clock information is synchronized to the other terminal.
  • the first node sends the master to the target terminal when determining each terminal or specific terminal in the communication system as the target terminal of the master time-sensitive network TSN clock node.
  • Node notification In response to receiving the notification from the master node, the target terminal synchronizes the TSN clock information of the terminal to the communication system, except for the target terminal or other related terminals, so that the terminal is used as the master TSN clock node.
  • the TSN clock in the scene is synchronized.
  • the device provided in the above embodiment realizes its functions, only the division of the above-mentioned functional modules is used as an example for illustration. In actual applications, the above-mentioned functions can be allocated by different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • FIG. 12 shows a schematic structural diagram of a terminal 120 according to an embodiment of the present application.
  • the terminal 120 may include: a processor 121, a receiver 122, a transmitter 123, a memory 124, and a bus 125.
  • the processor 121 includes one or more processing cores, and the processor 121 executes various functional applications and information processing by running software programs and modules.
  • the receiver 122 and the transmitter 123 may be implemented as a communication component, and the communication component may be a communication chip.
  • the communication chip can also be called a transceiver.
  • the memory 124 is connected to the processor 121 through the bus 125.
  • the memory 124 may be used to store a computer program, and the processor 121 is used to execute the computer program to implement each step executed by the terminal in the foregoing method embodiment.
  • the memory 124 may be implemented by any type of volatile or non-volatile storage device or a combination thereof.
  • the volatile or non-volatile storage device includes, but is not limited to: magnetic disks or optical disks, electrically erasable and programmable Read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static anytime access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM) .
  • the terminal includes a processor, a memory, and a transceiver (the transceiver may include a receiver and a transmitter, the receiver is used for receiving information, and the transmitter is used for sending information);
  • the transceiver is configured to receive a master node notification sent by a base station; the master node notification is sent when the base station receives terminal indication information; the terminal indication information is determined by the first node that the terminal is a target terminal The target terminal is sent to the base station at the time; the target terminal is the terminal that serves as the master time-sensitive network TSN clock node in each terminal in the communication system;
  • the transceiver is also used to synchronize the TSN clock information of the terminal to other terminals in the communication system except the terminal.
  • the transceiver when synchronizing the TSN clock information of the terminal to other terminals in the communication system except the terminal, the transceiver is used for:
  • the TSN clock information is sent to the other terminal through direct communication.
  • the transceiver is also used to send master node indication information to the other terminals, and the master node indication information is used to indicate that the terminal is a master time-sensitive network TSN clock node terminal.
  • the transceiver when synchronizing the TSN clock information of the terminal to other terminals in the communication system except the terminal, the transceiver is used for:
  • the TSN clock information is synchronized to the other terminal.
  • FIG. 13 shows a schematic structural diagram of a first node 130 provided by an embodiment of the present application.
  • the first node is a network-side node device in a communication system.
  • the base station 130 may include a processor 131, a receiver 132, a transmitter 133, a memory 134, and a bus 135.
  • the processor 131 includes one or more processing cores, and the processor 131 executes various functional applications and information processing by running software programs and modules.
  • the receiver 132 and the transmitter 133 may be implemented as a communication component, and the communication component may be a communication chip.
  • the communication chip can also be called a transceiver.
  • the memory 134 is connected to the processor 131 through the bus 135.
  • the memory 134 may be used to store a computer program, and the processor 131 is used to execute the computer program to implement each step executed by the base station in the foregoing method embodiment.
  • the memory 134 can be implemented by any type of volatile or non-volatile storage device or a combination thereof.
  • the volatile or non-volatile storage device includes, but is not limited to: magnetic disks or optical disks, electrically erasable and programmable Read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static anytime access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM) .
  • the base station includes a processor, a memory, and a transceiver (the transceiver may include a receiver and a transmitter, the receiver is used for receiving information, and the transmitter is used for sending information);
  • the processor is configured to obtain terminal information of each terminal in the communication system
  • the processor is configured to determine a target terminal from each terminal according to the respective terminal information of each terminal, and the target terminal is a terminal serving as a master time-sensitive network TSN clock node;
  • the transceiver is configured to send a master node notification to the target terminal, where the master node notification is used to instruct the target terminal to synchronize TSN clock information to terminals other than the target terminal in the communication system .
  • the first node is a base station, a central control node CNC, an access and mobility management function AMF device, a session management function SMF device, or a user plane function UPF device.
  • the transceiver is used for:
  • the terminal indication information includes:
  • the transceiver when the first node is a base station or a UPF device, the transceiver is also used for:
  • the transceiver is used for:
  • the terminal information includes at least one of terminal capability information, TSN service information, cell coverage information, terminal movement information, terminal location information, and terminal identification information;
  • the terminal capability information is used to indicate whether the corresponding terminal supports a high-precision clock, and whether the corresponding terminal has at least one of the capabilities of being a master TSN clock node;
  • the TSN service information is used to indicate whether the corresponding terminal supports or will transmit the TSN service, whether the corresponding terminal establishes or supports the establishment of a specific DRB or QoS flow, and the corresponding terminal supports or will transmit the service characteristics of the TSN service At least one of
  • the terminal identification information is used to indicate whether the corresponding terminal has a designated terminal identification.
  • FIG. 14 shows a schematic structural diagram of a terminal 140 provided by an embodiment of the present application.
  • the terminal 140 may include: a processor 141, a receiver 142, a transmitter 143, a memory 144, and a bus 145.
  • the processor 141 includes one or more processing cores, and the processor 141 executes various functional applications and information processing by running software programs and modules.
  • the receiver 142 and the transmitter 143 may be implemented as a communication component, and the communication component may be a communication chip.
  • the communication chip can also be called a transceiver.
  • the memory 144 is connected to the processor 141 through the bus 145.
  • the memory 144 may be used to store a computer program, and the processor 141 is used to execute the computer program to implement each step executed by the terminal in the foregoing method embodiment.
  • the memory 144 can be implemented by any type of volatile or non-volatile storage device or a combination thereof.
  • the volatile or non-volatile storage device includes, but is not limited to: magnetic disks or optical disks, electrically erasable and programmable Read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static anytime access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM) .
  • the terminal includes a processor, a memory, and a transceiver (the transceiver may include a receiver and a transmitter, the receiver is used for receiving information, and the transmitter is used for sending information);
  • the transceiver is configured to receive a master node notification sent by a base station; the master node notification is sent when the base station receives terminal indication information; the terminal indication information is determined by the first node that the terminal is a target terminal The target terminal is sent to the base station at the time; the target terminal is the terminal that serves as the master time-sensitive network TSN clock node in each terminal in the communication system;
  • the transceiver is also used to synchronize the TSN clock information of the terminal to other terminals in the communication system except the terminal.
  • the transceiver when synchronizing the TSN clock information of the terminal to other terminals in the communication system except the terminal, the transceiver is used for:
  • the TSN clock information is sent to the other terminal through direct communication.
  • the transceiver is also used to send master node indication information to the other terminals, and the master node indication information is used to indicate that the terminal is a master time-sensitive network TSN clock node terminal.
  • the transceiver when synchronizing the TSN clock information of the terminal to other terminals in the communication system except the terminal, the transceiver is used for:
  • the TSN clock information is synchronized to the other terminal.
  • FIG. 15 shows a schematic structural diagram of a first node 150 provided by an embodiment of the present application.
  • the first node is a network-side node device in a communication system.
  • the base station 150 may include: a processor 151, a receiver 152, a transmitter 153, a memory 154, and a bus 155.
  • the processor 151 includes one or more processing cores, and the processor 151 executes various functional applications and information processing by running software programs and modules.
  • the receiver 152 and the transmitter 153 may be implemented as a communication component, and the communication component may be a communication chip.
  • the communication chip can also be called a transceiver.
  • the memory 154 is connected to the processor 151 through a bus 155.
  • the memory 154 may be used to store a computer program, and the processor 151 is used to execute the computer program to implement each step executed by the base station in the foregoing method embodiment.
  • the memory 154 can be implemented by any type of volatile or non-volatile storage device or a combination thereof.
  • the volatile or non-volatile storage device includes, but is not limited to: magnetic disks or optical disks, electrically erasable and programmable Read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static anytime access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM) .
  • the base station includes a processor, a memory, and a transceiver (the transceiver may include a receiver and a transmitter, the receiver is used for receiving information, and the transmitter is used for sending information);
  • the processor is configured to obtain terminal information of each terminal in the communication system
  • the processor is configured to determine a target terminal from each terminal according to the respective terminal information of each terminal, and the target terminal is a terminal serving as a master time-sensitive network TSN clock node;
  • the transceiver is configured to send terminal indication information to a base station, the terminal indication information is used to instruct the base station to send a master node notification to the target terminal, and the master node notification is used to instruct the target terminal to set the TSN clock
  • the information is synchronized to other terminals in the communication system except the target terminal.
  • the designated terminal is:
  • the first terminal transmitting the TSN service among the terminals;
  • a terminal with a fixed geographic location among the terminals Or, a terminal with a fixed geographic location among the terminals;
  • a terminal determined by a network side device other than the base station among the terminals Or, a terminal determined by a network side device other than the base station among the terminals;
  • a terminal that establishes or supports a specific DRB or QoS flow among the terminals;
  • a terminal with a designated terminal identifier among the terminals Or, a terminal with a designated terminal identifier among the terminals.
  • the designated terminal group is:
  • the terminal group determined through negotiation between the respective terminals
  • a terminal group determined by a network side device other than the base station in each of the terminals is a terminal group determined by a network side device other than the base station in each of the terminals.
  • the transceiver is also used to send the terminal indication information to at least one of CNC, AMF equipment, SMF equipment, or user plane function UPF equipment.
  • the terminal indication information includes:
  • the terminal information includes at least one of terminal capability information, TSN service information, cell coverage information, terminal movement information, terminal location information, and terminal identification information;
  • the terminal capability information is used to indicate whether the corresponding terminal supports a high-precision clock, and whether the corresponding terminal has at least one of the capabilities of being a master TSN clock node;
  • the TSN service information is used to indicate whether the corresponding terminal supports or will transmit the TSN service, whether the corresponding terminal establishes or supports the establishment of a specific DRB or QoS flow, and the corresponding terminal supports or will transmit the service characteristics of the TSN service At least one of
  • the terminal identification information is used to indicate whether the corresponding terminal has a designated terminal identification.
  • An embodiment of the present application also provides a computer-readable storage medium in which a computer program is stored, and the computer program is loaded and executed by a processor to implement the above-mentioned clock information synchronization method.
  • An embodiment of the present application also provides a computer-readable storage medium in which a computer program is stored, and the computer program is loaded and executed by a processor to implement the above-mentioned clock information synchronization method.
  • This application also provides a computer program product, which when the computer program product runs on a terminal, causes the terminal to execute the above-mentioned clock information synchronization method.
  • This application also provides a computer program product, which when the computer program product runs on a base station, causes the base station to execute the above clock information synchronization method.
  • the functions described in the embodiments of the present application may be implemented by hardware, software, firmware, or any combination thereof. When implemented by software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on the computer-readable medium.
  • the computer-readable medium includes a computer storage medium and a communication medium, where the communication medium includes any medium that facilitates the transfer of a computer program from one place to another.
  • the storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

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Abstract

本申请公开了一种时钟信息同步方法、装置、第一节点、终端及存储介质，属于通信技术领域。所述方法包括：获取所述通信系统中的各个终端的终端信息；根据所述各个终端各自的终端信息，从所述各个终端中确定出目标终端，所述目标终端是作为主时间敏感网络TSN时钟节点的终端；向所述目标终端发送主节点通知，所述主节点通知用于指示所述目标终端将TSN时钟信息同步给所述通信系统中除了所述目标终端之外的其它终端。上述方案可以实现在由终端作为主TSN时钟节点的场景下的TSN时钟同步。

Description

时钟信息同步方法、装置、第一节点、终端及存储介质 技术领域
本申请涉及通信技术领域，特别涉及一种时钟信息同步方法、装置、第一节点、终端及存储介质。
背景技术
在工业互联网(Industrial Internet of Things，IIOT)中，基于时延和可靠性的传输需求，引入了时间敏感性网络(Time Sensitive Network，TSN)网络的概念。
在相关技术中，通常以网络作为主TSN时钟节点(master TSN clock node)，UE作为辅TSN时钟节点(slave TSN clock node)，由网络侧(比如基站)提供信息供终端与之同步。
然而，相关技术中的TSN时钟同步方案仅支持以网络作为主TSN时钟节点，UE作为辅TSN时钟节点的场景，导致TSN时钟同步的应用场景较窄。
发明内容
本申请实施例提供了一种时钟信息同步方法、装置、第一节点、终端及存储介质。所述技术方案如下：
一方面，本申请实施例提供了一种时钟信息同步方法，所述方法由第一节点执行，所述第一节点是通信系统中的网络侧节点设备，所述方法包括：
获取所述通信系统中的各个终端的终端信息；
根据所述各个终端各自的终端信息，从所述各个终端中确定出目标终端，所述目标终端是作为主时间敏感网络TSN时钟节点的终端；
向所述目标终端发送主节点通知，所述主节点通知用于指示所述目标终端将TSN时钟信息同步给所述通信系统中除了所述目标终端之外的其它终端。
另一方面，本申请实施例提供了一种时钟信息同步方法，所述方法由终端执行，所述方法包括：
接收第一节点发送的主节点通知，所述主节点通知是所述第一节点确定出所述终端是目标终端时发送的；所述目标终端是通信系统中的各个终端中，作为主时间敏感网络TSN时钟节点的终端；
将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端。
另一方面，本申请实施例提供了一种时钟信息同步方法，所述方法由第一节点执行，所述第一节点是通信系统中的终端侧节点设备，所述方法包括：
获取所述通信系统中的各个终端的终端信息；
根据所述各个终端各自的终端信息，从所述各个终端中确定出目标终端，所述目标终端是作为主时间敏感网络TSN时钟节点的终端；
向基站发送终端指示信息，所述终端指示信息用于指示所述基站向所述目标终端发送主节点通知，所述主节点通知用于指示所述目标终端将TSN时钟信息同步给所述通信系统中除了所述目标终端之外的其它终端。
另一方面，本申请实施例提供了一种时钟信息同步方法，其特征在于，所述方法由终端执行，所述方法包括：
接收基站发送的主节点通知；所述主节点通知是所述基站接收到终端指示信息时发送的；所述终端指示信息是第一节点确定出所述终端是目标终端时发送给所述基站的；所述目标终端是通信系统中的各个终端中，作为主时间敏感网络TSN时钟节点的终端；
将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端。
再一方面，本申请实施例提供了一种时钟信息同步装置，所述装置用于第一节点中，所述第一节点是通信系统中的网络侧的节点，所述装置包括：
终端信息获取模块，用于获取所述通信系统中的各个终端的终端信息；
目标终端确定模块，用于根据所述各个终端各自的终端信息，从所述各个终端中确定出目标终端，所述目标终端是作为主时间敏感网络TSN时钟节点的终端；
通知发送模块，用于向所述目标终端发送主节点通知，所述主节点通知用于指示所述目标终端将TSN时钟信息同步给所述通信系统中除了所述目标终端之外的其它终端。
再一方面，本申请实施例提供了一种时钟信息同步装置，用于终端中，所述装置包括：
通知接收模块，用于接收第一节点发送的主节点通知，所述主节点通知是所述第一节点确定出所述终端是目标终端时发送的；所述目标终端是通信系统中的各个终端中，作为主时间敏感网络TSN时钟节点的 终端；
时钟信息同步模块，用于将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端。
再一方面，本申请实施例提供了一种时钟信息同步装置，所述装置用于第一节点中，所述第一节点是通信系统中的终端侧节点设备，所述装置包括：
终端信息获取模块，用于获取所述通信系统中的各个终端的终端信息；
目标终端确定模块，用于根据所述各个终端各自的终端信息，从所述各个终端中确定出目标终端，所述目标终端是作为主时间敏感网络TSN时钟节点的终端；
指示信息发送模块，用于向基站发送终端指示信息，所述终端指示信息用于指示所述基站向所述目标终端发送主节点通知，所述主节点通知用于指示所述目标终端将TSN时钟信息同步给所述通信系统中除了所述目标终端之外的其它终端。
再一方面，本申请实施例提供了一种时钟信息同步装置，其特征在于，所述装置用于终端中，所述装置包括：
通知接收模块，用于接收基站发送的主节点通知；所述主节点通知是所述基站接收到终端指示信息时发送的；所述终端指示信息是第一节点确定出所述终端是目标终端时发送给所述基站的；所述目标终端是通信系统中的各个终端中，作为主时间敏感网络TSN时钟节点的终端；
时钟信息同步模块，用于将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端。
还一方面，本申请实施例提供了一种终端，所述终端包括处理器、存储器和收发器，所述存储器存储有计算机程序，所述计算机程序用于被所述处理器执行，以实现上述时钟信息同步方法。
还一方面，本申请实施例提供了一种第一节点，所述第一节点包括处理器、存储器和收发器，所述存储器存储有计算机程序，所述计算机程序用于被所述处理器执行，以实现上述时钟信息同步方法。
又一方面，本申请实施例还提供了一种计算机可读存储介质，所述存储介质中存储有计算机程序，所述计算机程序由处理器加载并执行以实现上述时钟信息同步方法。
又一方面，本申请提供了一种计算机程序产品，当计算机程序产品在终端上运行时，使得终端执行上述时钟信息同步方法。
本申请实施例提供的技术方案可以带来如下有益效果：
第一节点根据各个终端的终端信息确定通信系统中的各个终端或特定的各个终端中，作为主时间敏感网络TSN时钟节点的目标终端时，向目标终端发送主节点通知，以触发目标终端将TSN时钟信息同步给通信系统中，除了目标终端之外的其它终端或其他相关终端，从而实现在由终端作为主TSN时钟节点的场景下的TSN时钟同步。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请一个实施例提供的网络架构的示意图；
图2是本申请一个实施例提供的时钟信息同步方法的流程图；
图3是本申请一个实施例提供的时钟信息同步方法的流程图；
图4是本申请一个实施例提供的时钟信息同步方法的流程图；
图5是本申请一个实施例提供的时钟信息同步方法的流程图；
图6是本申请一个实施例提供的时钟信息同步方法的流程图；
图7是本申请一个实施例提供的时钟信息同步方法的流程图；
图8是本申请一个实施例提供的时钟信息同步装置的框图；
图9是本申请一个实施例提供的时钟信息同步装置的框图；
图10是本申请一个实施例提供的时钟信息同步装置的框图；
图11是本申请一个实施例提供的时钟信息同步装置的框图；
图12是本申请一个实施例提供的终端的结构示意图；
图13是本申请一个实施例提供的第一节点的结构示意图；
图14是本申请一个实施例提供的终端的结构示意图；
图15是本申请一个实施例提供的第一节点的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
本申请实施例描述的网络架构以及业务场景是为了更加清楚地说明本申请实施例的技术方案，并不构成对本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
请参考图1，其示出了本申请一个实施例提供的通信系统的网络架构的示意图。该网络架构可以包括：终端10和基站20。
终端10的数量通常为多个，每一个基站20所管理的小区内可以分布一个或多个终端10。终端10可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备，以及各种形式的用户设备(User Equipment，UE)，移动台(Mobile Station，MS)，终端设备(terminal device)等等。为方便描述，本申请实施例中，上面提到的设备统称为终端。
基站20是一种部署在接入网中用以为终端20提供无线通信功能的装置。基站20可以包括各种形式的宏基站，微基站，中继站，接入点等等。在采用不同的无线接入技术的系统中，具备基站功能的设备的名称可能会有所不同，例如在5G NR系统中，称为gNodeB或者gNB。随着通信技术的演进，“基站”这一名称可能会变化。为方便描述，本申请实施例中，上述为终端20提供无线通信功能的装置统称为基站。
可选的，图1中未示出的是，上述网络架构还包括其它网络设备，比如：中心控制节点(Central network control，CNC)、接入和移动性管理功能(Access and Mobility Management Function，AMF)设备、会话管理功能(Session management function，SMF)或者用户面功能(User Plane Function，UPF)设备等等。
本公开实施例中的“5G NR系统”也可以称为5G系统或者NR系统，但本领域技术人员可以理解其含义。本公开实施例描述的技术方案可以适用于5G NR系统，也可以适用于5G NR系统后续的演进系统。
R16 5G IIoT中需求支持工业自动化(Factory automation)，传输自动化(Transport Industry)，智能电力(Electrical Power Distribution)等业务在5G系统的传输。在TSN网络中，5C网络作为TSN桥(TSN bridge)，为TSN网络和业务提供服务。针对这一点，NR系统需要提供更低的时延保证，和更高的时钟同步精度，以便工业自动化业务在5G网络中传输的时候，机械操作的每一个点的操作和接续精准，且是符合时间要求的。
在R16主要支持以网络作为master TSN clock node，UE作为slave TSN clock node的场景，相应的TSN时钟信息，从基站通知给UE，UE与基站进行同步。
基于这一假设，并且，基于TSN业务传输的需求，TSN业务在5G内传输时，需要UE和基站同步，相应的基站提供参考时间信息给UE，使得UE和基站同步。进一步的，为达到1us的时间精度，网络通知TSN时间同步信息和更精准的时间同步精度信息，该参考时钟信息包含在TimeReferenceInfo IE中。可以通过广播或单播发送给UE，时间同步精度的粒度为10ns。
在R16主要支持以网络作为master TSN clock node，UE作为slave TSN clock node的场景，由网络提供信息供UE与之同步。而在R17需要支持UE作为master TSN clock node的场景。由于服务小区内存在多个UE，且不同UE的时钟精度不同，时钟本振不同，设备误差不同等，将导致选择哪个UE作为mater TSN clock node是一件需要确定的事情，否则将造成系统TSN不同步的问题，或者同步精度不足的问题。
而本申请后续实施例提出了一种在支持UE作为master TSN clock node的场景下的时钟同步方案，从而扩展TSN时钟同步的应用场景。
下面，将结合几个示例性实施例，对本申请技术方案进行介绍说明。
请参考图2，其示出了本申请一个实施例提供的时钟信息同步方法的流程图，该方法可应用于图1所示的网络架构对应的通信系统中的第一节点执行，该第一节点是上述通信系统中的网络侧节点设备，该方法可以包括如下几个步骤：
步骤201，获取通信系统中的各个终端的终端信息。
步骤202，根据各个终端各自的终端信息，从各个终端中确定出目标终端，该目标终端是通信系统中的各个终端或者特定的各个终端中，作为主时间敏感性网络TSN时钟节点的终端。
可选的，上述各个终端可以是基站服务的小区中的全部终端。
可选的，上述各个终端可以是基站服务的小区中的部分终端，比如，支持TSN业务的终端，例如，支持某些指定的TSN业务的终端。
可选的，上述目标终端可以是由基站在各个终端中确定的，或者，该目标终端也可以是由基站之外的节点确定设备在各个终端中确定出之后通知给基站。
可选的，上述目标终端可以是由基站在至少一个特定终端中确定的，或者，该目标终端也可以是由基 站之外的节点确定设备在至少一个特定终端中确定出之后通知给基站。
步骤203，向该目标终端发送主节点通知。
其中，该主节点通知用于指示目标终端将TSN时钟信息同步给通信系统中除了目标终端之外的其它终端。
其中，该主节点通知用于通知该目标终端是主TSN时钟节点。
可选的，基站除了向该目标终端发送主节点通知之外，也可以向通信系统中的各个终端中，除了该目标终端之外的其它终端发送该主节点通知；或者，基站除了向该目标终端发送主节点通知之外，也可以向通信系统中的主节点支持的TSN业务对应的各个终端中，除了该目标终端之外的其它终端发送该主节点通知。
可选的，如果该第一节点是基站或者UPF设备时，第一节点还可以接收该目标终端发送的TSN时钟信息，并将该TSN时钟信息发送给该通信系统中，除了目标终端之外的其它终端。
其中，上述TSN时钟信息也可以称为TSN参考时钟信息，是用于由上述各个终端之间进行时钟同步的信息。
可选的，该TSN时钟信息可以包括TSN时间，TSN时钟域标识，TSN类型至少之一。
可选的，该TSN时钟信息可以包括TSN时间、不精确度、参考系统帧号reference SFN、时间信息类型time info Type、TSN时钟域标识以及传播时延补偿信息中的至少一种。
其中，TSN时间可以包括到达时间，离开时间，参考时间中的至少一种。
可选的，基站/UPF设备接收到该TSN时钟信息之后，可以通过该TSN时钟信息与目标终端进行时钟同步。
可选的，目标终端可以建立特定的数据无线承载(Data Radio Bearer，DRB)或特定的服务质量流(Quality of Service flow，QoS flow)，以支持该目标终端发送TSN时钟信息给基站/UPF设备。
在本申请实施例中，基站/UPF设备接收到目标终端发送的TSN时钟信息后，可以将TSN时钟信息发送给通信系统中，除了目标终端之外的其它终端，或者，除了目标终端外对应该TSN时钟信息的TSN的其他相关终端，以便其它终端与基站以及目标终端之间进行时钟同步。
综上所述，本申请实施例所示的方案，第一节点根据各个终端的终端信息确定通信系统中的各个终端或特定的各个终端中，作为主时间敏感网络TSN时钟节点的目标终端时，向目标终端发送主节点通知，以触发目标终端将TSN时钟信息同步给通信系统中，除了目标终端之外的其它终端或其他相关终端，从而实现在由终端作为主TSN时钟节点的场景下的TSN时钟同步。
请参考图3，其示出了本申请一个实施例提供的时钟信息同步方法的流程图，该方法可应用于图1所示的网络架构的终端中，该方法可以包括如下几个步骤：
步骤301，接收第一节点发送的主节点通知，该主节点通知是该第一节点确定出该终端是目标终端时发送的；该目标终端是通信系统中的各个终端中，作为主时间敏感网络TSN时钟节点的终端。
步骤302，将该终端的TSN时钟信息同步给该通信系统中除了该终端之外的其它终端。
综上所述，本申请实施例所示的方案，第一节点在确定通信系统中的各个终端或特定的各个终端中，作为主时间敏感网络TSN时钟节点的目标终端时，向目标终端发送主节点通知，目标终端响应于接收到该主节点通知，将终端的TSN时钟信息同步给通信系统中，除了目标终端之外的其它终端或其他相关终端，从而实现在由终端作为主TSN时钟节点的场景下的TSN时钟同步。
请参考图4，其示出了本申请一个实施例提供的时钟信息同步方法的流程图，该方法可应用于图1所示的网络架构对应的通信系统中的第一节点执行，该第一节点是上述通信系统中的终端侧节点设备，该方法可以包括如下几个步骤：
步骤401，获取该通信系统中的各个终端的终端信息。
步骤402，根据该各个终端各自的终端信息，从该各个终端中确定出目标终端，该目标终端是作为主时间敏感网络TSN时钟节点的终端。
步骤403，向基站发送终端指示信息，该终端指示信息用于指示该基站向该目标终端发送该主节点通知，该主节点通知用于指示该目标终端将TSN时钟信息同步给该通信系统中除了该目标终端之外的其它终端。
综上所述，本申请实施例所示的方案，第一节点根据各个终端的终端信息确定通信系统中的各个终端或特定的各个终端中，作为主时间敏感网络TSN时钟节点的目标终端时，向目标终端发送主节点通知，以触发目标终端将TSN时钟信息同步给通信系统中，除了目标终端之外的其它终端或其他相关终端，从而实现在由终端作为主TSN时钟节点的场景下的TSN时钟同步。
请参考图5，其示出了本申请一个实施例提供的时钟信息同步方法的流程图，该方法可应用于图1所示的网络架构的终端中，该方法可以包括如下几个步骤：
步骤501，接收基站发送的主节点通知；该主节点通知是该基站接收到终端指示信息时发送的；该终端指示信息是第一节点确定出该终端是目标终端时发送给该基站的；该目标终端是通信系统中的各个终端中，作为主时间敏感网络TSN时钟节点的终端。
步骤502，将该终端的TSN时钟信息同步给该通信系统中除了该终端之外的其它终端。
综上所述，本申请实施例所示的方案，第一节点在确定通信系统中的各个终端或特定的各个终端中，作为主时间敏感网络TSN时钟节点的目标终端时，向目标终端发送主节点通知，目标终端响应于接收到该主节点通知，将终端的TSN时钟信息同步给通信系统中，除了目标终端之外的其它终端或其他相关终端，从而实现在由终端作为主TSN时钟节点的场景下的TSN时钟同步。
其中，本申请各个实施例所示的方案中，目标终端可以由包括基站在内的网络侧节点设备来确定，也可以由系统中的终端侧节点设备来确定。本申请后续实施例将分别以这两种情况为例进行说明。
请参考图6，其示出了本申请一个实施例提供的时钟信息同步方法的流程图，该方法可应用于图1所示的网络架构中，由图1中的第一节点和终端交互执行，该第一节点是网络侧节点设备，该方法可以包括如下几个步骤：
步骤601，第一节点获取通信系统中的各个终端的终端信息。
可选的，该第一节点可以是基站、中心控制节点CNC、接入和移动性管理功能AMF设备或者会话管理功能SMF设备。
可选的，上述终端信息可以从基站、TSN设备、核心网、CNC或者各个终端处获得。
步骤602，第一节点根据各个终端各自的终端信息确定目标终端，该目标终端是通信系统中的各个终端或特定的各个终端中，作为主时间敏感网络TSN时钟节点的终端。
可选的，该终端信息包括终端能力信息、TSN业务信息、小区覆盖信息、终端移动信息、终端位置信息以及终端标识信息中的至少一种；
该终端能力信息用于指示对应的终端是否支持高精度时钟，以及，对应的终端是否具备作为主TSN时钟节点的能力中的至少一种；
该TSN业务信息用于指示对应的终端是否支持或将传输TSN业务，是否建立或可建立特定的DRB/QoS flow，以及，对应的终端支持或将传输的TSN业务的业务特征，是否具有目标终端标识中的至少一种。
该终端标识信息用于指示对应的终端是否具有指定的终端标识。
例如，第一节点可以通过上述终端能力信息、TSN业务信息、小区覆盖信息、终端移动信息、终端位置信息以及终端标识信息中的某一种终端信息确定符合条件的一个终端作为目标终端。
比如，第一节点可以根据各个终端的终端能力信息筛选出支持高精度时钟，且具备作为主TSN时钟节点的能力的终端中的某一种终端，作为上述目标终端。
或者，第一节点也可以根据各个终端的TSN业务信息，筛选出支持TSN业务，和/或，TSN业务的业务特征符合指定特征的终端中的某一个终端作为目标终端。
或者，第一节点也可以根据各个终端的小区覆盖信息，筛选出属于指定小区的终端中的某一个终端作为目标终端。
或者，第一节点也可以根据各个终端的终端移动信息，筛选出位置固定或者移动速度较慢的终端中的某一个终端作为目标终端。
或者，第一节点也可以根据各个终端的终端位置信息，筛选出处于某一固定的地理范围内的终端中的某一个终端作为目标终端。
或者，第一节点也可以根据各个终端的终端标识信息，筛选出具有指定的终端标识的终端作为目标终端。
当上述终端信息包含两种或者两种以上信息时，第一节点也可以按照预设的筛选顺序，依次按照两种或者两种以上信息进行目标终端的筛选。
以上述终端信息包括终端能力信息和TSN业务信息为例，第一节点可以首先根据终端能力信息筛选出支持高精度时钟，且具备作为主TSN时钟节点的能力的第一终端集合，然后从第一终端集合中筛选出支持TSN业务，和/或，TSN业务的业务特征符合指定特征的第二终端集合，再从第二终端集合中确定出一个终端作为目标终端。
可选的，该第一节点是CNC、接入和移动性管理功能AMF设备，会话管理功能SMF或者用户面功能UPF设备中的任意一种。
步骤603，第一节点向目标终端发送主节点通知，相应的，目标终端接收该主节点通知。
可选的，当第一节点是基站时，基站可以通过广播和/或专用无线资源控制(Radio Resource Control，RRC)消息的方式，将该主节点通知发送给目标终端。
可选的，基站也可以通过非接入层(Non-Access Stratum，NAS)消息等，由非接入层(如AMF)通知给目标终端。
可选的，该第一节点可以将上述主节点通知发送给该基站或服务小区下的所有终端，或，该第一节点可以将上述主节点通知发送执行/支持TSN业务的终端。
可选的，当第一节点是CNC、AMF、SMF或者UPF设备时，第一节点可以向基站发送终端指示信息，该终端指示信息用于指示基站向目标终端发送主节点通知。
可选的，该终端指示信息包括：
该目标终端的终端标识、该目标终端所在的服务小区标识，该目标终端所在的服务基站标识、该目标终端的TSN时钟域标识、建立或将建立传输TSN时钟信息的DRB标识、建立或将建立传输TSN时钟信息的QoS flow标识、以及该目标终端的TSN业务标识中的至少一项。
步骤604，目标终端生成TSN时钟信息。
可选的，该TSN时钟信息包括：TSN时间(包括参考时间，如time)、不精确度、参考系统帧号reference SFN、时间信息类型time info Type以及TSN时钟域标识中的至少一种。
可选的，该TSN时钟信息还包括：时延补偿指示信息，该时延补偿指示信息用于指示传播时延是否补偿。
可选的，该TSN时钟信息可以包括TSN时间(如到达时间，离开时间等)，TSN时钟域标识，TSN类型至少之一。
可选的，目标终端建立或利用建立的特定的DRB或特定的QoS flow，以支持该目标终端发送TSN时钟信息给基站。
可选的，目标终端在接收到基站发送的主节点通知后，确定自己被选为作为master TSN clock node，则目标终端即生成TSN时钟信息。
步骤605，目标终端将终端信息同步给通信系统中除了目标终端之外的其它终端。相应的，其它终端接收该TSN时钟信息。
在一种可能的实现方式中，目标终端可以将TSN时钟信息发送给基站或者用户面功能UPF设备，以便基站或者UPF设备将TSN时钟信息发送给其它终端。
或者，在另一种可能的实现方式中，目标终端可以通过直连通信方式将TSN时钟信息发送给其它终端。
可选的，目标终端可以将TSN时钟信息周期性的同步给其它终端。
可选的，目标终端也可以在检测到指定触发条件时，将TSN时钟信息同步给所述其它终端。
可选的，该TSN时钟信息包括：参考时间、不精确度、参考系统帧号reference SFN、时间信息类型time info Type以及TSN时钟域标识中的至少一种。
可选的，该TSN时钟信息还包括：时延补偿指示信息，该时延补偿指示信息用于指示传播时延是否补偿。可选的，目标终端在接收到基站发送的主节点通知后，确定自己被选为作为master TSN clock node，则目标终端即向基站发送TSN时钟信息。可选的，首次发送的该TSN时钟信息，可以承载在专用RRC消息中。
目标终端在首次发送上述TSN时钟信息之后，还可以按照一定周期向其它终端同步更新的TSN时钟信息。可选的，当通过基站小时按其它终端同步该TSN时钟信息时，该更新的TSN时钟信息，可以承载在专用RRC消息，MAC CE，或者物理层信令中的任意一种中。
可选的，TSN时钟信息可以包括TSN时间(如到达时间，离开时间等)，TSN时钟域标识，TSN类型至少之一。
目标终端建立或利用建立的特定的DRB或特定的QoS flow，以支持该目标终端发送TSN时钟信息给基站。利用该DRB或QoS flow，目标终端将首次，或，后续的TSN信息发送给网络。
可选的，上述更新的TSN时钟信息也可以由事件触发，比如，TSN时钟信息到达，或者TSN时钟信息更新，或者TSN时钟信息变更事件，或者TSN时钟信息变更粒度大于或等于门限事件等等。
可选的，当第一节点是基站或者UPF设备时，第一节点可以接收目标终端发送的TSN时钟信息；并将该TSN时钟信息发送给通信系统中除了目标终端之外的其它终端。相应的，其它终端接收该TSN时钟信息。
可选的，当第一节点是基站时，第一节点可以接收目标终端周期性发送的所述TSN时钟信息；
或者，
当第一节点是基站时，第一节点可以接收目标终端在检测到指定触发条件时发送的TSN时钟信息。
可选的，该第一节点可以通过基站的广播(如SIB9)和/或专用RRC消息，将TSN时钟信息通知给通信系统中，除了目标终端之外的其它终端。相应的，其它终端可以通过广播(如SIB9)和/或专用RRC 消息接收该TSN时钟信息。
可选的，基站通过专用DRB或特定QoS flow，将接收到的TSN时钟信息，发送给其他终端。
可选的，如果基站不是上述第一节点，则基站接收到该TSN时钟信息之后，还根据该TSN时钟信息与该目标终端进行TSN时钟同步。
在另一种可能的实现方式中，目标终端可以向上述各个终端中的其它终端发送TSN时钟信息，也就是说，上述TSN时钟信息也可以由目标终端将上述TSN时钟信息直接发送给其它终端。比如，目标终端可以通过直连通信sidelink方式将上述TSN时钟信息发送给其它终端。
在另一种可能的实现方式中，当目标终端将上述TSN时钟信息发送给UPF设备，由UPF设备将该TSN时钟信息发送给上述其它终端时，UPF可以将目标终端发送的上述TSN时钟信息直接发送给上述其它终端，或者，UPF也可以对目标终端发送的上述TSN时钟信息进行修正后，发送给上述其他终端。
步骤606，其它终端根据该TSN时钟信息与目标终端进行时钟同步。
在本申请实施例中，若终端未被选为作为master TSN clock node，则终端在接收到接收基站/UPF设备发送的TSN时钟信息后，根据该TSN时钟信息与基站/UPF设备以及目标终端进行时间同步。所述基站/UPF设备发送的时钟信息可以承载在以下信息至少之一：广播(如SIB9)，专用RRC消息，专用DRB或特定QoS flow中。
综上所述，本申请实施例所示的方案，第一节点在确定通信系统中的各个终端或特定的各个终端中，作为主时间敏感网络TSN时钟节点的目标终端时，向目标终端发送主节点通知，目标终端响应于接收到该主节点通知，将终端的TSN时钟信息同步给通信系统中，除了目标终端之外的其它终端或其他相关终端，从而实现在由终端作为主TSN时钟节点的场景下的TSN时钟同步。
此外，本申请实施例中由网络侧节点设备确定作为master TSN clock node的目标终端的方案，网络侧可以有更多的信息确定选择一个合适的终端，保证了5G系统受控于网络的需求，同时保证系统TSN同步以及同步精度的需求。
其中，上述第一节点也可以是通信系统中的终端侧节点设备，也就是说，由各个终端中的指定终端或者指定终端组来确定目标终端。
请参考图7，其示出了本申请一个实施例提供的时钟信息同步方法的流程图，该方法可应用于图1所示的网络架构中，由图1中的第一节点和终端交互执行，该第一节点是终端侧节点设备，以第一节点是通信系统中的各个终端中的指定终端或者指定终端组为例，该方法可以包括如下几个步骤：
步骤701，第一节点获取通信系统中的各个终端的终端信息。
其中，当本申请实施例所示的方案由指定终端执行，即第一节点是指定终端时，该指定终端可以是：上述各个终端中第一个传输TSN业务的终端；或者，该各个终端中地理位置固定的终端；或者，该各个终端中由基站指示的终端；或者，该各个终端中由基站之外的网络侧设备确定的终端；或者，各个终端中建立或支持特定DRB或QoS flow的终端；或者，各个终端中具有指定的终端标识的终端。
可选的，其中，当本申请实施例所示的方案由指定终端组执行，即该第一节点是指定终端组时，该指定终端组为：该各个终端之间协商确定的终端组；或者，该各个终端中由基站指示的终端组；或者，该各个终端中由基站之外的网络侧设备确定的终端组。
其中，该基站之外的网络侧设备可以是CNC、AMF设备或者SMF设备等等。
步骤702，第一节点根据各个终端各自的终端信息，从各个终端中确定出目标终端。
其中，该目标终端是通信系统中的各个终端中，作为主时间敏感网络TSN时钟节点的终端。
步骤703，第一节点向基站发送终端指示信息；相应的，基站接收该终端指示信息。
其中，该终端指示信息用于指示基站向目标终端发送主节点通知，主节点通知用于指示目标终端将TSN时钟信息同步给通信系统中除了目标终端之外的其它终端。
其中，指定终端或者指定终端组确定目标终端的方式，与上述图6所示实施例中网络侧节点设备确定目标终端的方式类似，即根据各个终端的终端信息，从各个终端中确定出目标终端，此处不再赘述。
其中，上述各个终端的终端信息，可以由指定终端或者指定终端组从基站，核心网，CNC或者指定终端或者指定终端组之外的其它终端处获得。
其中，该终端指示信息包括：
该目标终端的终端标识、该目标终端所在的服务小区标识、该目标终端所在的服务基站标识、该目标终端的TSN时钟域标识、建立或将建立传输TSN时钟信息的DRB标识、建立或将建立传输TSN时钟信息的QoS flow标识以及该目标终端的TSN业务标识中的至少一项。
可选的，第一节点还可以向CNC、AMF设备、SMF设备或者用户面功能UPF设备中的至少一个发送终端指示信息。
步骤704，基站向相关设备发送主节点通知，相应的，相关设备接收该主节点通知。
可选的，基站可以通过广播和/或专用RRC消息的方式，将该主节点通知发送给目标终端。
可选的，基站也可以通过NAS消息等，由非接入层(如AMF)通知给目标终端。
可选的，该基站可以将上述主节点通知发送给该基站或服务小区下的所有终端，或，该基站可以将上述主节点通知发送执行/支持TSN业务的终端。
可选的，基站还可以向CNC、AMF设备、SMF设备或者UPF设备中的至少一个发送上述终端指示信息。
步骤705，目标终端生成TSN时钟信息。
可选的，该TSN时钟信息包括：参考时间、不精确度、参考系统帧号reference SFN、时间信息类型time info Type以及TSN时钟域标识中的至少一种。
可选的，该TSN时钟信息还包括：时延补偿指示信息，该时延补偿指示信息用于指示传播时延是否补偿。
可选的，TSN时钟信息可以包括TSN时间(如到达时间，离开时间等)，TSN时钟域标识，TSN类型至少之一。
可选的，目标终端建立或利用建立的特定的DRB或特定的QoS flow，以支持该目标终端发送TSN时钟信息给基站。
可选的，目标终端在接收到基站发送的主节点通知后，确定自己被选为作为master TSN clock node，则目标终端即生成TSN时钟信息。
步骤706，目标终端将TSN时钟信息同步给通信系统中除了目标终端之外的其它终端。
可选的，目标终端可以将TSN时钟信息周期性的同步给所述其它终端；
或者，
目标终端可以在检测到指定触发条件时，将TSN时钟信息同步给其它终端。
比如，以目标终端通过基站将TSN时钟信息同步给其它终端为例，目标终端向该基站发送TSN时钟信息，相应的，基站接收目标终端发送的该TSN时钟信息。之后，基站将该TSN时钟信息发送给该通信系统中，除了目标终端之外的其它终端，相应的，其它终端接收该TSN时钟信息。
可选的，终端向该基站周期性发送TSN时钟信息，相应的，基站接收该目标终端周期性发送的该TSN时钟信息。
可选的，该TSN时钟信息包括：参考时间、不精确度、参考系统帧号reference SFN、时间信息类型time info Type以及TSN时钟域标识中的至少一种。
可选的，该TSN时钟信息还包括：时延补偿指示信息，该时延补偿指示信息用于指示传播时延是否补偿。
可选的，目标终端在接收到基站发送的主节点通知后，确定自己被选为作为master TSN clock node，则目标终端即向基站发送TSN时钟信息。可选的，首次发送的该TSN时钟信息，可以承载在专用RRC消息中。
目标终端在首次发送上述TSN时钟信息之后，还可以按照一定周期向基站发送更新的TSN时钟信息。可选的，该更新的TSN时钟信息，可以承载在专用RRC消息，MAC CE，或者物理层信令中的任意一种中。
可选的，TSN时钟信息可以包括TSN时间(如到达时间，离开时间等)，TSN时钟域标识，TSN类型至少之一。
目标终端建立或利用建立的特定的DRB或特定的QoS flow，以支持该目标终端发送TSN时钟信息给基站。利用该DRB或QoS flow，将首次，或，后续的TSN信息发送给网络。
可选的，上述更新的TSN时钟信息也可以由事件触发，比如，TSN时钟信息到达，或者TSN时钟信息更新，或者TSN时钟信息变更事件，或者TSN时钟信息变更粒度大于或等于门限事件等等。
可选的，在本申请实施例中，目标终端也可以向该各个终端中的其它终端发送主节点指示信息，该主节点指示信息，该主节点指示信息用于指示该终端是作为主时间敏感网络TSN时钟节点的终端。
比如，目标终端可以通过直连通信sidelink向该各个终端中的其它终端发送主节点指示信息。
可选的，当上述目标终端不是指定终端，或者不属于指定终端组时，上述其它终端可以包含上述指定终端或者指定终端组。
可选的，该基站可以通过广播(如SIB9)和/或专用RRC消息，将TSN时钟信息通知给通信系统中，除了目标终端之外的其它终端。相应的，其它终端可以通过广播(如SIB9)和/或专用RRC消息接收该TSN时钟信息。
可选的，基站通过专用DRB或特定QoS flow，将接受到的TSN时钟信息，发送给其他终端。
可选的，基站接收到该TSN时钟信息之后，还根据该TSN时钟信息与该目标终端进行TSN时钟同步。
在另一种可能的实现方式中，也可以由目标终端将上述TSN时钟信息直接发送给其它终端。比如，目 标终端可以通过直连通信sidelink方式将上述TSN时钟信息发送给其它终端。
在另一种可能的实现方式中，目标终端也可以将上述TSN时钟信息发送给UPF设备，由UPF设备将该TSN时钟信息发送给上述其它终端。相应的，UPF可以将目标终端发送的上述TSN时钟信息直接发送给上述其它终端，或者，UPF也可以对目标终端发送的上述TSN时钟信息进行修正后，发送给上述其他终端。
步骤707，其它终端根据该TSN时钟信息与目标终端进行时钟同步。
在本申请实施例中，若终端未被选为作为master TSN clock node，则终端在接收到接收基站发送的TSN时钟信息后，根据该TSN时钟信息与基站以及目标终端进行时间同步。所述基站发送的时钟信息可以承载在以下信息至少之一：广播(如SIB9)，专用RRC消息，专用DRB或特定QoS flow中。
综上所述，本申请实施例所示的方案，第一节点在确定通信系统中的各个终端或特定的各个终端中，作为主时间敏感网络TSN时钟节点的目标终端时，向目标终端发送主节点通知，目标终端响应于接收到该主节点通知，将终端的TSN时钟信息同步给通信系统中，除了目标终端之外的其它终端或其他相关终端，从而实现在由终端作为主TSN时钟节点的场景下的TSN时钟同步。
此外，本申请实施例中由指定终端/指定终端组确定作为master TSN clock node的目标终端的方案，可以提供更灵活、实时的master TSN clock node选择方式。
下述为本申请装置实施例，可以用于执行本申请方法实施例。对于本申请装置实施例中未披露的细节，请参照本申请方法实施例。
请参考图8，其示出了本申请一个实施例提供的时钟信息同步装置的框图。该装置具有实现上述时钟信息同步方法示例的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该装置可以是上文介绍的第一节点，也可以设置在第一节点中；该第一节点可以是网络侧节点设备。如图8所示，该装置可以包括：
终端信息获取模块801，用于获取所述通信系统中的各个终端的终端信息；
目标终端确定模块802，用于根据所述各个终端各自的终端信息，从所述各个终端中确定出目标终端，所述目标终端是作为主时间敏感网络TSN时钟节点的终端；
通知发送模块803，用于向所述目标终端发送主节点通知，所述主节点通知用于指示所述目标终端将TSN时钟信息同步给所述通信系统中除了所述目标终端之外的其它终端。
可选的，所述第一节点为基站、中心控制节点CNC、接入和移动性管理功能AMF设备、会话管理功能SMF设备或者用户面功能UPF设备。
可选的，所述通知发送模块803，用于当所述第一节点是CNC、AMF设备、SMF设备或者UPF设备时，向基站发送终端指示信息，所述终端指示信息用于指示所述基站向所述目标终端发送所述主节点通知。
可选的，所述终端指示信息包括：
所述目标终端的终端标识、所述目标终端所在的服务小区标识，所述目标终端所在的服务基站标识、所述目标终端的TSN时钟域标识、建立或将建立传输TSN时钟信息的DRB标识、建立或将建立传输TSN时钟信息的QoS flow标识、以及所述目标终端的TSN业务标识中的至少一项。
可选的，所述装置还包括：
时钟信息接收模块，用于当所述第一节点是基站或者UPF设备时，接收所述目标终端发送的所述TSN时钟信息；
时钟信息发送模块，用于将所述TSN时钟信息发送给所述通信系统中除了所述目标终端之外的其它终端。
可选的，所述时钟信息接收模块，用于，
接收所述目标终端周期性发送的所述TSN时钟信息；
或者，
接收所述目标终端在检测到指定触发条件时发送的所述TSN时钟信息。
可选的，所述终端信息包括终端能力信息、TSN业务信息、小区覆盖信息、终端移动信息、终端位置信息以及终端标识信息中的至少一种；
所述终端能力信息用于指示对应的终端是否支持高精度时钟，对应的终端是否具备作为主TSN时钟节点的能力中的至少一种；
所述TSN业务信息用于指示对应的终端是否支持或将传输TSN业务，对应的终端是否建立或支持建立特定的DRB或者服务质量流QoS flow，对应的终端支持或将传输的TSN业务的业务特征中的至少一种；
所述终端标识信息用于指示对应的终端是否具有指定的终端标识。
综上所述，本申请实施例所示的方案，第一节点根据各个终端的终端信息确定通信系统中的各个终端或特定的各个终端中，作为主时间敏感网络TSN时钟节点的目标终端时，向目标终端发送主节点通知，以 触发目标终端将TSN时钟信息同步给通信系统中，除了目标终端之外的其它终端或其他相关终端，从而实现在由终端作为主TSN时钟节点的场景下的TSN时钟同步。
请参考图9，其示出了本申请一个实施例提供的时钟信息同步装置的框图。该装置具有实现上述时钟信息同步方法示例的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该装置可以是上文介绍的终端，也可以设置在终端中。如图9所示，该装置可以包括：
通知接收模块901，用于接收第一节点发送的主节点通知，所述主节点通知是所述第一节点确定出所述终端是目标终端时发送的；所述目标终端是通信系统中的各个终端中，作为主时间敏感网络TSN时钟节点的终端；
时钟信息同步模块902，用于将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端。
可选的，所述时钟信息同步模块902，用于，
将所述TSN时钟信息发送给基站或者用户面功能UPF设备，以便所述基站或者所述UPF设备将所述TSN时钟信息发送给所述其它终端；
或者，
通过直连通信方式将所述TSN时钟信息发送给所述其它终端。
可选的，所述装置还包括：
主节点指示模块，用于向所述其它终端发送主节点指示信息，所述主节点指示信息用于指示所述终端是作为主时间敏感网络TSN时钟节点的终端。
可选的，所述时钟信息同步模块，用于，
将所述TSN时钟信息周期性的同步给所述其它终端；
或者，
在检测到指定触发条件时，将所述TSN时钟信息同步给所述其它终端。
综上所述，本申请实施例所示的方案，第一节点在确定通信系统中的各个终端或特定的各个终端中，作为主时间敏感网络TSN时钟节点的目标终端时，向目标终端发送主节点通知，目标终端响应于接收到该主节点通知，将终端的TSN时钟信息同步给通信系统中，除了目标终端之外的其它终端或其他相关终端，从而实现在由终端作为主TSN时钟节点的场景下的TSN时钟同步。
请参考图10，其示出了本申请一个实施例提供的时钟信息同步装置的框图。该装置具有实现上述时钟信息同步方法示例的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该装置可以是上文介绍的第一节点，也可以设置在第一节点中；该第一节点可以是终端侧节点设备。如图10所示，该装置可以包括：
终端信息获取模块1001，用于获取所述通信系统中的各个终端的终端信息；
目标终端确定模块1002，用于根据所述各个终端各自的终端信息，从所述各个终端中确定出目标终端，所述目标终端是作为主时间敏感网络TSN时钟节点的终端；
指示信息发送模块1003，用于向基站发送终端指示信息，所述终端指示信息用于指示所述基站向所述目标终端发送主节点通知，所述主节点通知用于指示所述目标终端将TSN时钟信息同步给所述通信系统中除了所述目标终端之外的其它终端。
可选的，当所述第一节点是指定终端时，所述指定终端为：
所述各个终端中第一个传输TSN业务的终端；
或者，所述各个终端中地理位置固定的终端；
或者，所述各个终端中由基站指示的终端；
或者，所述各个终端中由基站之外的网络侧设备确定的终端；
或者，所述各个终端中建立或支持特定DRB或QoS flow的终端；
或者，所述各个终端中具有指定的终端标识的终端。
可选的，当所述第一节点是指定终端组时，所述指定终端组为：
所述各个终端之间协商确定的终端组；
或者，所述各个终端中由基站指示的终端组；
或者，所述各个终端中由基站之外的网络侧设备确定的终端组。
可选的，所述指示信息发送模块1003，还用于，
向CNC、AMF设备、SMF设备或者用户面功能UPF设备中的至少一个发送所述终端指示信息。
可选的，所述终端指示信息包括：
所述目标终端的终端标识、所述目标终端所在的服务小区标识，所述目标终端所在的服务基站标识、 所述目标终端的TSN时钟域标识、建立或将建立传输TSN时钟信息的DRB标识、建立或将建立传输TSN时钟信息的QoS flow标识、以及所述目标终端的TSN业务标识中的至少一项。
可选的，所述终端信息包括终端能力信息、TSN业务信息、小区覆盖信息、终端移动信息、终端位置信息以及终端标识信息中的至少一种；
所述终端能力信息用于指示对应的终端是否支持高精度时钟，对应的终端是否具备作为主TSN时钟节点的能力中的至少一种；
所述TSN业务信息用于指示对应的终端是否支持或将传输TSN业务，对应的终端是否建立或支持建立特定的DRB或者服务质量流QoS flow，对应的终端支持或将传输的TSN业务的业务特征中的至少一种；
所述终端标识信息用于指示对应的终端是否具有指定的终端标识。
综上所述，本申请实施例所示的方案，第一节点根据各个终端的终端信息确定通信系统中的各个终端或特定的各个终端中，作为主时间敏感网络TSN时钟节点的目标终端时，向目标终端发送主节点通知，以触发目标终端将TSN时钟信息同步给通信系统中，除了目标终端之外的其它终端或其他相关终端，从而实现在由终端作为主TSN时钟节点的场景下的TSN时钟同步。
请参考图11，其示出了本申请一个实施例提供的时钟信息同步装置的框图。该装置具有实现上述时钟信息同步方法示例的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该装置可以是上文介绍的终端，也可以设置在终端中。如图11所示，该装置可以包括：
通知接收模块1101，用于接收基站发送的主节点通知；所述主节点通知是所述基站接收到终端指示信息时发送的；所述终端指示信息是第一节点确定出所述终端是目标终端时发送给所述基站的；所述目标终端是通信系统中的各个终端中，作为主时间敏感网络TSN时钟节点的终端；
时钟信息同步模块1102，用于将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端。
可选的，所述时钟信息同步模块1102，用于，
将所述TSN时钟信息发送给所述基站或者用户面功能UPF设备，以便所述基站或者所述UPF设备将所述TSN时钟信息发送给所述其它终端；
或者，
通过直连通信方式将所述TSN时钟信息发送给所述其它终端。
可选的，所述装置还包括：
主节点指示模块，用于向所述其它终端发送主节点指示信息，所述主节点指示信息用于指示所述终端是作为主时间敏感网络TSN时钟节点的终端。
可选的，所述时钟信息同步模块1102，用于，
将所述TSN时钟信息周期性的同步给所述其它终端；
或者，
在检测到指定触发条件时，将所述TSN时钟信息同步给所述其它终端。
综上所述，本申请实施例所示的方案，第一节点在确定通信系统中的各个终端或特定的各个终端中，作为主时间敏感网络TSN时钟节点的目标终端时，向目标终端发送主节点通知，目标终端响应于接收到该主节点通知，将终端的TSN时钟信息同步给通信系统中，除了目标终端之外的其它终端或其他相关终端，从而实现在由终端作为主TSN时钟节点的场景下的TSN时钟同步。
需要说明的一点是，上述实施例提供的装置在实现其功能时，仅以上述各个功能模块的划分进行举例说明，实际应用中，可以根据实际需要而将上述功能分配由不同的功能模块完成，即将设备的内容结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
请参考图12，其示出了本申请一个实施例提供的终端120的结构示意图。该终端120可以包括：处理器121、接收器122、发射器123、存储器124和总线125。
处理器121包括一个或者一个以上处理核心，处理器121通过运行软件程序以及模块，从而执行各种功能应用以及信息处理。
接收器122和发射器123可以实现为一个通信组件，该通信组件可以是一块通信芯片。该通信芯片也可以称为收发器。
存储器124通过总线125与处理器121相连。
存储器124可用于存储计算机程序，处理器121用于执行该计算机程序，以实现上述方法实施例中的 终端执行的各个步骤。
此外，存储器124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，易失性或非易失性存储设备包括但不限于：磁盘或光盘，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)，静态随时存取存储器(SRAM)，只读存储器(ROM)，磁存储器，快闪存储器，可编程只读存储器(PROM)。
在示例性实施例中，所述终端包括处理器、存储器和收发器(该收发器可以包括接收器和发射器，接收器用于接收信息，发射器用于发送信息)；
所述收发器，用于接收基站发送的主节点通知；所述主节点通知是所述基站接收到终端指示信息时发送的；所述终端指示信息是第一节点确定出所述终端是目标终端时发送给所述基站的；所述目标终端是通信系统中的各个终端中，作为主时间敏感网络TSN时钟节点的终端；
所述收发器，还用于将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端。
在一种可能的实现方式中，在将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端时，所述收发器，用于，
将所述TSN时钟信息发送给基站或者用户面功能UPF设备，以便所述基站或者所述UPF设备将所述TSN时钟信息发送给所述其它终端；
或者，
通过直连通信方式将所述TSN时钟信息发送给所述其它终端。
在一种可能的实现方式中，所述收发器，还用于向所述其它终端发送主节点指示信息，所述主节点指示信息用于指示所述终端是作为主时间敏感网络TSN时钟节点的终端。
在一种可能的实现方式中，在将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端时，所述收发器，用于，
将所述TSN时钟信息周期性的同步给所述其它终端；
或者，
在检测到指定触发条件时，将所述TSN时钟信息同步给所述其它终端。
请参考图13，其示出了本申请一个实施例提供的第一节点130的结构示意图，该第一节点是通信系统中的网络侧节点设备。该基站130可以包括：处理器131、接收器132、发射器133、存储器134和总线135。
处理器131包括一个或者一个以上处理核心，处理器131通过运行软件程序以及模块，从而执行各种功能应用以及信息处理。
接收器132和发射器133可以实现为一个通信组件，该通信组件可以是一块通信芯片。该通信芯片也可以称为收发器。
存储器134通过总线135与处理器131相连。
存储器134可用于存储计算机程序，处理器131用于执行该计算机程序，以实现上述方法实施例中的基站执行的各个步骤。
此外，存储器134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，易失性或非易失性存储设备包括但不限于：磁盘或光盘，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)，静态随时存取存储器(SRAM)，只读存储器(ROM)，磁存储器，快闪存储器，可编程只读存储器(PROM)。
在示例性实施例中，所述基站包括处理器、存储器和收发器(该收发器可以包括接收器和发射器，接收器用于接收信息，发射器用于发送信息)；
所述处理器，用于获取所述通信系统中的各个终端的终端信息；
所述处理器，用于根据所述各个终端各自的终端信息，从所述各个终端中确定出目标终端，所述目标终端是作为主时间敏感网络TSN时钟节点的终端；
所述收发器，用于向所述目标终端发送主节点通知，所述主节点通知用于指示所述目标终端将TSN时钟信息同步给所述通信系统中除了所述目标终端之外的其它终端。
在一种可能的实现方式中，所述第一节点为基站、中心控制节点CNC、接入和移动性管理功能AMF设备、会话管理功能SMF设备或者用户面功能UPF设备。
在一种可能的实现方式中，当所述第一节点是CNC、AMF设备、SMF设备或者UPF设备时，所述收发器，用于，
向基站发送终端指示信息，所述终端指示信息用于指示所述基站向所述目标终端发送所述主节点通知。
在一种可能的实现方式中，所述终端指示信息包括：
所述目标终端的终端标识、所述目标终端所在的服务小区标识，所述目标终端所在的服务基站标识、所述目标终端的TSN时钟域标识、建立或将建立传输TSN时钟信息的DRB标识、建立或将建立传输TSN时钟信息的QoS flow标识、以及所述目标终端的TSN业务标识中的至少一项。
在一种可能的实现方式中，当所述第一节点是基站或者UPF设备时，所述收发器，还用于，
接收所述目标终端发送的所述TSN时钟信息；
将所述TSN时钟信息发送给所述通信系统中除了所述目标终端之外的其它终端。
在一种可能的实现方式中，所述收发器，用于，
接收所述目标终端周期性发送的所述TSN时钟信息；
或者，
接收所述目标终端在检测到指定触发条件时发送的所述TSN时钟信息。
在一种可能的实现方式中，所述终端信息包括终端能力信息、TSN业务信息、小区覆盖信息、终端移动信息、终端位置信息以及终端标识信息中的至少一种；
所述终端能力信息用于指示对应的终端是否支持高精度时钟，对应的终端是否具备作为主TSN时钟节点的能力中的至少一种；
所述TSN业务信息用于指示对应的终端是否支持或将传输TSN业务，对应的终端是否建立或支持建立特定的DRB或者服务质量流QoS flow，对应的终端支持或将传输的TSN业务的业务特征中的至少一种；
所述终端标识信息用于指示对应的终端是否具有指定的终端标识。
请参考图14，其示出了本申请一个实施例提供的终端140的结构示意图。该终端140可以包括：处理器141、接收器142、发射器143、存储器144和总线145。
处理器141包括一个或者一个以上处理核心，处理器141通过运行软件程序以及模块，从而执行各种功能应用以及信息处理。
接收器142和发射器143可以实现为一个通信组件，该通信组件可以是一块通信芯片。该通信芯片也可以称为收发器。
存储器144通过总线145与处理器141相连。
存储器144可用于存储计算机程序，处理器141用于执行该计算机程序，以实现上述方法实施例中的终端执行的各个步骤。
此外，存储器144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，易失性或非易失性存储设备包括但不限于：磁盘或光盘，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)，静态随时存取存储器(SRAM)，只读存储器(ROM)，磁存储器，快闪存储器，可编程只读存储器(PROM)。
在示例性实施例中，所述终端包括处理器、存储器和收发器(该收发器可以包括接收器和发射器，接收器用于接收信息，发射器用于发送信息)；
所述收发器，用于接收基站发送的主节点通知；所述主节点通知是所述基站接收到终端指示信息时发送的；所述终端指示信息是第一节点确定出所述终端是目标终端时发送给所述基站的；所述目标终端是通信系统中的各个终端中，作为主时间敏感网络TSN时钟节点的终端；
所述收发器，还用于将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端。
在一种可能的实现方式中，在将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端时，所述收发器，用于，
将所述TSN时钟信息发送给基站或者用户面功能UPF设备，以便所述基站或者所述UPF设备将所述TSN时钟信息发送给所述其它终端；
或者，
通过直连通信方式将所述TSN时钟信息发送给所述其它终端。
在一种可能的实现方式中，所述收发器，还用于向所述其它终端发送主节点指示信息，所述主节点指示信息用于指示所述终端是作为主时间敏感网络TSN时钟节点的终端。
在一种可能的实现方式中，在将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端时，所述收发器，用于，
将所述TSN时钟信息周期性的同步给所述其它终端；
或者，
在检测到指定触发条件时，将所述TSN时钟信息同步给所述其它终端。
请参考图15，其示出了本申请一个实施例提供的第一节点150的结构示意图，该第一节点是通信系统中的网络侧节点设备。该基站150可以包括：处理器151、接收器152、发射器153、存储器154和总线155。
处理器151包括一个或者一个以上处理核心，处理器151通过运行软件程序以及模块，从而执行各种功能应用以及信息处理。
接收器152和发射器153可以实现为一个通信组件，该通信组件可以是一块通信芯片。该通信芯片也可以称为收发器。
存储器154通过总线155与处理器151相连。
存储器154可用于存储计算机程序，处理器151用于执行该计算机程序，以实现上述方法实施例中的基站执行的各个步骤。
此外，存储器154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，易失性或非易失性存储设备包括但不限于：磁盘或光盘，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)，静态随时存取存储器(SRAM)，只读存储器(ROM)，磁存储器，快闪存储器，可编程只读存储器(PROM)。
在示例性实施例中，所述基站包括处理器、存储器和收发器(该收发器可以包括接收器和发射器，接收器用于接收信息，发射器用于发送信息)；
所述处理器，用于获取所述通信系统中的各个终端的终端信息；
所述处理器，用于根据所述各个终端各自的终端信息，从所述各个终端中确定出目标终端，所述目标终端是作为主时间敏感网络TSN时钟节点的终端；
所述收发器，用于向基站发送终端指示信息，所述终端指示信息用于指示所述基站向所述目标终端发送主节点通知，所述主节点通知用于指示所述目标终端将TSN时钟信息同步给所述通信系统中除了所述目标终端之外的其它终端。
在一种可能的实现方式中，当所述第一节点是指定终端时，所述指定终端为：
所述各个终端中第一个传输TSN业务的终端；
或者，所述各个终端中地理位置固定的终端；
或者，所述各个终端中由基站指示的终端；
或者，所述各个终端中由基站之外的网络侧设备确定的终端；
或者，所述各个终端中建立或支持特定DRB或QoS flow的终端；
或者，所述各个终端中具有指定的终端标识的终端。
在一种可能的实现方式中，当所述第一节点是指定终端组时，所述指定终端组为：
所述各个终端之间协商确定的终端组；
或者，所述各个终端中由基站指示的终端组；
或者，所述各个终端中由基站之外的网络侧设备确定的终端组。
在一种可能的实现方式中，所述收发器，还用于向CNC、AMF设备、SMF设备或者用户面功能UPF设备中的至少一个发送所述终端指示信息。
在一种可能的实现方式中，所述终端指示信息包括：
所述目标终端的终端标识、所述目标终端所在的服务小区标识，所述目标终端所在的服务基站标识、所述目标终端的TSN时钟域标识、建立或将建立传输TSN时钟信息的DRB标识、建立或将建立传输TSN时钟信息的QoS flow标识、以及所述目标终端的TSN业务标识中的至少一项。
在一种可能的实现方式中，所述终端信息包括终端能力信息、TSN业务信息、小区覆盖信息、终端移动信息、终端位置信息以及终端标识信息中的至少一种；
所述终端能力信息用于指示对应的终端是否支持高精度时钟，对应的终端是否具备作为主TSN时钟节点的能力中的至少一种；
所述TSN业务信息用于指示对应的终端是否支持或将传输TSN业务，对应的终端是否建立或支持建立特定的DRB或者服务质量流QoS flow，对应的终端支持或将传输的TSN业务的业务特征中的至少一种；
所述终端标识信息用于指示对应的终端是否具有指定的终端标识。
本申请实施例还提供了一种计算机可读存储介质，所述存储介质中存储有计算机程序，所述计算机程序由处理器加载并执行以实现上述时钟信息同步方法。
本申请实施例还提供了一种计算机可读存储介质，所述存储介质中存储有计算机程序，所述计算机程序由处理器加载并执行以实现上述时钟信息同步方法。
本申请还提供了一种计算机程序产品，当计算机程序产品在终端上运行时，使得终端执行上述时钟信息同步方法。
本申请还提供了一种计算机程序产品，当计算机程序产品在基站上运行时，使得基站执行上述时钟信息同步方法。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请实施例所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述仅为本申请的示例性实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (47)

  1. 一种时钟信息同步方法，其特征在于，所述方法由第一节点执行，所述第一节点是通信系统中的网络侧节点设备，所述方法包括：
    获取所述通信系统中的各个终端的终端信息；
    根据所述各个终端各自的终端信息，从所述各个终端中确定出目标终端，所述目标终端是作为主时间敏感网络TSN时钟节点的终端；
    向所述目标终端发送主节点通知，所述主节点通知用于指示所述目标终端将TSN时钟信息同步给所述通信系统中除了所述目标终端之外的其它终端。
  2. 根据权利要求1所述的方法，其特征在于，所述第一节点为基站、中心控制节点CNC、接入和移动性管理功能AMF设备、会话管理功能SMF设备或者用户面功能UPF设备。
  3. 根据权利要求2所述的方法，其特征在于，当所述第一节点是CNC、AMF设备、SMF设备或者UPF设备时，所述向所述目标终端发送主节点通知，包括：
    向基站发送终端指示信息，所述终端指示信息用于指示所述基站向所述目标终端发送所述主节点通知。
  4. 根据权利要求3所述的方法，其特征在于，所述终端指示信息包括：
    所述目标终端的终端标识、所述目标终端所在的服务小区标识，所述目标终端所在的服务基站标识、所述目标终端的TSN时钟域标识、建立或将建立传输TSN时钟信息的DRB标识、建立或将建立传输TSN时钟信息的QoS flow标识、以及所述目标终端的TSN业务标识中的至少一项。
  5. 根据权利要求2所述的方法，其特征在于，当所述第一节点是基站或者UPF设备时，所述方法还包括：
    接收所述目标终端发送的所述TSN时钟信息；
    将所述TSN时钟信息发送给所述通信系统中除了所述目标终端之外的其它终端。
  6. 根据权利要求5所述的方法，其特征在于，所述接收所述目标终端发送的所述TSN时钟信息，包括：
    接收所述目标终端周期性发送的所述TSN时钟信息；
    或者，
    接收所述目标终端在检测到指定触发条件时发送的所述TSN时钟信息。
  7. 根据权利要求1至6任一所述的方法，其特征在于，所述终端信息包括终端能力信息、TSN业务信息、小区覆盖信息、终端移动信息、终端位置信息以及终端标识信息中的至少一种；
    所述终端能力信息用于指示对应的终端是否支持高精度时钟，对应的终端是否具备作为主TSN时钟节点的能力中的至少一种；
    所述TSN业务信息用于指示对应的终端是否支持或将传输TSN业务，对应的终端是否建立或支持建立特定的DRB或者服务质量流QoS flow，对应的终端支持或将传输的TSN业务的业务特征中的至少一种；
    所述终端标识信息用于指示对应的终端是否具有指定的终端标识。
  8. 一种时钟信息同步方法，其特征在于，所述方法由终端执行，所述方法包括：
    接收第一节点发送的主节点通知，所述主节点通知是所述第一节点确定出所述终端是目标终端时发送的；所述目标终端是通信系统中的各个终端中，作为主时间敏感网络TSN时钟节点的终端；
    将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端。
  9. 根据权利要求8所述的方法，其特征在于，所述将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端，包括：
    将所述TSN时钟信息发送给基站或者用户面功能UPF设备，以便所述基站或者所述UPF设备将所述TSN时钟信息发送给所述其它终端；
    或者，
    通过直连通信方式将所述TSN时钟信息发送给所述其它终端。
  10. 根据权利要求8所述的方法，其特征在于，所述方法还包括：
    向所述其它终端发送主节点指示信息，所述主节点指示信息用于指示所述终端是作为主时间敏感网络TSN时钟节点的终端。
  11. 根据权利要求8所述的方法，其特征在于，所述将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端，包括：
    将所述TSN时钟信息周期性的同步给所述其它终端；
    或者，
    在检测到指定触发条件时，将所述TSN时钟信息同步给所述其它终端。
  12. 一种时钟信息同步方法，其特征在于，所述方法由第一节点执行，所述第一节点是通信系统中的终端侧节点设备，所述方法包括：
    获取所述通信系统中的各个终端的终端信息；
    根据所述各个终端各自的终端信息，从所述各个终端中确定出目标终端，所述目标终端是作为主时间敏感网络TSN时钟节点的终端；
    向基站发送终端指示信息，所述终端指示信息用于指示所述基站向所述目标终端发送主节点通知，所述主节点通知用于指示所述目标终端将TSN时钟信息同步给所述通信系统中除了所述目标终端之外的其它终端。
  13. 根据权利要求12所述的方法，其特征在于，当所述第一节点是指定终端时，所述指定终端为：
    所述各个终端中第一个传输TSN业务的终端；
    或者，所述各个终端中地理位置固定的终端；
    或者，所述各个终端中由基站指示的终端；
    或者，所述各个终端中由基站之外的网络侧设备确定的终端；
    或者，所述各个终端中建立或支持特定DRB或QoS flow的终端；
    或者，所述各个终端中具有指定的终端标识的终端。
  14. 根据权利要求12所述的方法，其特征在于，当所述第一节点是指定终端组时，所述指定终端组为：
    所述各个终端之间协商确定的终端组；
    或者，所述各个终端中由基站指示的终端组；
    或者，所述各个终端中由基站之外的网络侧设备确定的终端组。
  15. 根据权利要求12所述的方法，其特征在于，所述方法还包括：
    向CNC、AMF设备、SMF设备或者用户面功能UPF设备中的至少一个发送所述终端指示信息。
  16. 根据权利要求12所述的方法，其特征在于，所述终端指示信息包括：
    所述目标终端的终端标识、所述目标终端所在的服务小区标识，所述目标终端所在的服务基站标识、所述目标终端的TSN时钟域标识、建立或将建立传输TSN时钟信息的DRB标识、建立或将建立传输TSN时钟信息的QoS flow标识、以及所述目标终端的TSN业务标识中的至少一项。
  17. 根据权利要求12至16任一所述的方法，其特征在于，所述终端信息包括终端能力信息、TSN业务信息、小区覆盖信息、终端移动信息、终端位置信息以及终端标识信息中的至少一种；
    所述终端能力信息用于指示对应的终端是否支持高精度时钟，对应的终端是否具备作为主TSN时钟节点的能力中的至少一种；
    所述TSN业务信息用于指示对应的终端是否支持或将传输TSN业务，对应的终端是否建立或支持建立特定的DRB或者服务质量流QoS flow，对应的终端支持或将传输的TSN业务的业务特征中的至少一种；
    所述终端标识信息用于指示对应的终端是否具有指定的终端标识。
  18. 一种时钟信息同步方法，其特征在于，所述方法由终端执行，所述方法包括：
    接收基站发送的主节点通知；所述主节点通知是所述基站接收到终端指示信息时发送的；所述终端指示信息是第一节点确定出所述终端是目标终端时发送给所述基站的；所述目标终端是通信系统中的各个终端中，作为主时间敏感网络TSN时钟节点的终端；
    将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端。
  19. 根据权利要求18所述的方法，其特征在于，所述将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端，包括：
    将所述TSN时钟信息发送给所述基站或者用户面功能UPF设备，以便所述基站或者所述UPF设备将所述TSN时钟信息发送给所述其它终端；
    或者，
    通过直连通信方式将所述TSN时钟信息发送给所述其它终端。
  20. 根据权利要求18所述的方法，其特征在于，所述方法还包括：
    向所述其它终端发送主节点指示信息，所述主节点指示信息用于指示所述终端是作为主时间敏感网络TSN时钟节点的终端。
  21. 根据权利要求18所述的方法，其特征在于，所述将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端，包括：
    将所述TSN时钟信息周期性的同步给所述其它终端；
    或者，
    在检测到指定触发条件时，将所述TSN时钟信息同步给所述其它终端。
  22. 一种时钟信息同步装置，其特征在于，所述装置用于第一节点中，所述第一节点是通信系统中的网络侧的节点，所述装置包括：
    终端信息获取模块，用于获取所述通信系统中的各个终端的终端信息；
    目标终端确定模块，用于根据所述各个终端各自的终端信息，从所述各个终端中确定出目标终端，所述目标终端是作为主时间敏感网络TSN时钟节点的终端；
    通知发送模块，用于向所述目标终端发送主节点通知，所述主节点通知用于指示所述目标终端将TSN时钟信息同步给所述通信系统中除了所述目标终端之外的其它终端。
  23. 根据权利要求22所述的装置，其特征在于，所述第一节点为基站、中心控制节点CNC、接入和移动性管理功能AMF设备、会话管理功能SMF设备或者用户面功能UPF设备。
  24. 根据权利要求23所述的装置，其特征在于，
    所述通知发送模块，用于当所述第一节点是CNC、AMF设备、SMF设备或者UPF设备时，向基站发送终端指示信息，所述终端指示信息用于指示所述基站向所述目标终端发送所述主节点通知。
  25. 根据权利要求24所述的装置，其特征在于，所述终端指示信息包括：
    所述目标终端的终端标识、所述目标终端所在的服务小区标识，所述目标终端所在的服务基站标识、所述目标终端的TSN时钟域标识、建立或将建立传输TSN时钟信息的DRB标识、建立或将建立传输TSN时钟信息的QoS flow标识、以及所述目标终端的TSN业务标识中的至少一项。
  26. 根据权利要求23所述的装置，其特征在于，所述装置还包括：
    时钟信息接收模块，用于当所述第一节点是基站或者UPF设备时，接收所述目标终端发送的所述TSN时钟信息；
    时钟信息发送模块，用于将所述TSN时钟信息发送给所述通信系统中除了所述目标终端之外的其它终端。
  27. 根据权利要求26所述的装置，其特征在于，所述时钟信息接收模块，用于，
    接收所述目标终端周期性发送的所述TSN时钟信息；
    或者，
    接收所述目标终端在检测到指定触发条件时发送的所述TSN时钟信息。
  28. 根据权利要求22至27任一所述的装置，其特征在于，所述终端信息包括终端能力信息、TSN业务信息、小区覆盖信息、终端移动信息、终端位置信息以及终端标识信息中的至少一种；
    所述终端能力信息用于指示对应的终端是否支持高精度时钟，对应的终端是否具备作为主TSN时钟节点的能力中的至少一种；
    所述TSN业务信息用于指示对应的终端是否支持或将传输TSN业务，对应的终端是否建立或支持建立特定的DRB或者服务质量流QoS flow，对应的终端支持或将传输的TSN业务的业务特征中的至少一种；
    所述终端标识信息用于指示对应的终端是否具有指定的终端标识。
  29. 一种时钟信息同步装置，其特征在于，所述装置用于终端中，所述装置包括：
    通知接收模块，用于接收第一节点发送的主节点通知，所述主节点通知是所述第一节点确定出所述终端是目标终端时发送的；所述目标终端是通信系统中的各个终端中，作为主时间敏感网络TSN时钟节点的终端；
    时钟信息同步模块，用于将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端。
  30. 根据权利要求29所述的装置，其特征在于，所述时钟信息同步模块，用于，
    将所述TSN时钟信息发送给基站或者用户面功能UPF设备，以便所述基站或者所述UPF设备将所述TSN时钟信息发送给所述其它终端；
    或者，
    通过直连通信方式将所述TSN时钟信息发送给所述其它终端。
  31. 根据权利要求29所述的装置，其特征在于，所述装置还包括：
    主节点指示模块，用于向所述其它终端发送主节点指示信息，所述主节点指示信息用于指示所述终端是作为主时间敏感网络TSN时钟节点的终端。
  32. 根据权利要求29所述的装置，其特征在于，所述时钟信息同步模块，用于，
    将所述TSN时钟信息周期性的同步给所述其它终端；
    或者，
    在检测到指定触发条件时，将所述TSN时钟信息同步给所述其它终端。
  33. 一种时钟信息同步装置，其特征在于，所述装置用于第一节点中，所述第一节点是通信系统中的终端侧节点设备，所述装置包括：
    终端信息获取模块，用于获取所述通信系统中的各个终端的终端信息；
    目标终端确定模块，用于根据所述各个终端各自的终端信息，从所述各个终端中确定出目标终端，所述目标终端是作为主时间敏感网络TSN时钟节点的终端；
    指示信息发送模块，用于向基站发送终端指示信息，所述终端指示信息用于指示所述基站向所述目标终端发送主节点通知，所述主节点通知用于指示所述目标终端将TSN时钟信息同步给所述通信系统中除了所述目标终端之外的其它终端。
  34. 根据权利要求33所述的装置，其特征在于，当所述第一节点是指定终端时，所述指定终端为：
    所述各个终端中第一个传输TSN业务的终端；
    或者，所述各个终端中地理位置固定的终端；
    或者，所述各个终端中由基站指示的终端；
    或者，所述各个终端中由基站之外的网络侧设备确定的终端；
    或者，所述各个终端中建立或支持特定DRB或QoS flow的终端；
    或者，所述各个终端中具有指定的终端标识的终端。
  35. 根据权利要求33所述的装置，其特征在于，当所述第一节点是指定终端组时，所述指定终端组为：
    所述各个终端之间协商确定的终端组；
    或者，所述各个终端中由基站指示的终端组；
    或者，所述各个终端中由基站之外的网络侧设备确定的终端组。
  36. 根据权利要求33所述的装置，其特征在于，所述指示信息发送模块，还用于，
    向CNC、AMF设备、SMF设备或者用户面功能UPF设备中的至少一个发送所述终端指示信息。
  37. 根据权利要求33所述的装置，其特征在于，所述终端指示信息包括：
    所述目标终端的终端标识、所述目标终端所在的服务小区标识，所述目标终端所在的服务基站标识、所述目标终端的TSN时钟域标识、建立或将建立传输TSN时钟信息的DRB标识、建立或将建立传输TSN时钟信息的QoS flow标识、以及所述目标终端的TSN业务标识中的至少一项。
  38. 根据权利要求33至37任一所述的装置，其特征在于，所述终端信息包括终端能力信息、TSN业务信息、小区覆盖信息、终端移动信息、终端位置信息以及终端标识信息中的至少一种；
    所述终端能力信息用于指示对应的终端是否支持高精度时钟，对应的终端是否具备作为主TSN时钟节点的能力中的至少一种；
    所述TSN业务信息用于指示对应的终端是否支持或将传输TSN业务，对应的终端是否建立或支持建立特定的DRB或者服务质量流QoS flow，对应的终端支持或将传输的TSN业务的业务特征中的至少一种；
    所述终端标识信息用于指示对应的终端是否具有指定的终端标识。
  39. 一种时钟信息同步装置，其特征在于，所述装置用于终端中，所述装置包括：
    通知接收模块，用于接收基站发送的主节点通知；所述主节点通知是所述基站接收到终端指示信息时发送的；所述终端指示信息是第一节点确定出所述终端是目标终端时发送给所述基站的；所述目标终端是通信系统中的各个终端中，作为主时间敏感网络TSN时钟节点的终端；
    时钟信息同步模块，用于将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端。
  40. 根据权利要求39所述的装置，其特征在于，所述时钟信息同步模块，用于，
    将所述TSN时钟信息发送给所述基站或者用户面功能UPF设备，以便所述基站或者所述UPF设备将所述TSN时钟信息发送给所述其它终端；
    或者，
    通过直连通信方式将所述TSN时钟信息发送给所述其它终端。
  41. 根据权利要求39所述的装置，其特征在于，所述装置还包括：
    主节点指示模块，用于向所述其它终端发送主节点指示信息，所述主节点指示信息用于指示所述终端是作为主时间敏感网络TSN时钟节点的终端。
  42. 根据权利要求39所述的装置，其特征在于，所述时钟信息同步模块，用于，
    将所述TSN时钟信息周期性的同步给所述其它终端；
    或者，
    在检测到指定触发条件时，将所述TSN时钟信息同步给所述其它终端。
  43. 一种第一节点，其特征在于，所述第一节点是通信系统中的网络侧节点设备，所述第一节点包括 处理器、存储器和收发器；
    所述处理器，用于获取所述通信系统中的各个终端的终端信息；
    所述处理器，用于根据所述各个终端各自的终端信息，从所述各个终端中确定出目标终端，所述目标终端是作为主时间敏感网络TSN时钟节点的终端；
    所述收发器，用于向所述目标终端发送主节点通知，所述主节点通知用于指示所述目标终端将TSN时钟信息同步给所述通信系统中除了所述目标终端之外的其它终端。
  44. 一种终端，其特征在于，所述终端包括处理器、存储器和收发器；
    所述收发器，用于接收第一节点发送的主节点通知，所述主节点通知是所述第一节点确定出所述终端是目标终端时发送的；所述目标终端是通信系统中的各个终端中，作为主时间敏感网络TSN时钟节点的终端；
    所述收发器，还用于将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端。
  45. 一种第一节点，其特征在于，所述第一节点是通信系统中的终端侧节点设备，所述第一节点包括处理器、存储器和收发器；
    所述处理器，用于获取所述通信系统中的各个终端的终端信息；
    所述处理器，用于根据所述各个终端各自的终端信息，从所述各个终端中确定出目标终端，所述目标终端是作为主时间敏感网络TSN时钟节点的终端；
    所述收发器，用于向基站发送终端指示信息，所述终端指示信息用于指示所述基站向所述目标终端发送主节点通知，所述主节点通知用于指示所述目标终端将TSN时钟信息同步给所述通信系统中除了所述目标终端之外的其它终端。
  46. 一种终端，其特征在于，所述终端包括处理器、存储器和收发器；
    所述收发器，用于接收基站发送的主节点通知；所述主节点通知是所述基站接收到终端指示信息时发送的；所述终端指示信息是第一节点确定出所述终端是目标终端时发送给所述基站的；所述目标终端是通信系统中的各个终端中，作为主时间敏感网络TSN时钟节点的终端；
    所述收发器，还用于将所述终端的TSN时钟信息同步给所述通信系统中除了所述终端之外的其它终端。
  47. 一种计算机可读存储介质，其特征在于，所述存储介质中存储有计算机程序，所述计算机程序用于被处理器执行，以实现如权利要求1至21任一项所述的时钟信息同步方法。
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