WO2022141575A1 - 一种参考时间信息的使用方法及装置 - Google Patents

一种参考时间信息的使用方法及装置 Download PDF

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Publication number
WO2022141575A1
WO2022141575A1 PCT/CN2020/142508 CN2020142508W WO2022141575A1 WO 2022141575 A1 WO2022141575 A1 WO 2022141575A1 CN 2020142508 W CN2020142508 W CN 2020142508W WO 2022141575 A1 WO2022141575 A1 WO 2022141575A1
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Prior art keywords
time information
reference time
network node
mobility management
sent
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PCT/CN2020/142508
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English (en)
French (fr)
Inventor
江小威
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202080004029.0A priority Critical patent/CN115088318B/zh
Priority to PCT/CN2020/142508 priority patent/WO2022141575A1/zh
Publication of WO2022141575A1 publication Critical patent/WO2022141575A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements

Definitions

  • the present invention relates to the field of mobile communication, in particular to a method and device for using reference time information.
  • the clock of a user equipment In a communication system, the clock of a user equipment (User Equipment, UE) needs to be synchronized with the clock of the network side. If there is a deviation between the UE side clock and the network side clock, transmission information or data loss often occurs.
  • UE User Equipment
  • the method, device, communication device and storage medium for using reference time information proposed in this application are used to obtain the reference time information received in the mobility management command, and use the reference time information to realize the UE side clock and the network side clock Clock synchronization.
  • An embodiment of the first aspect of the present application proposes a method for using reference time information, which is applicable to a UE.
  • the method includes: acquiring reference time information received in a mobility management command, and using the reference time information.
  • An embodiment of the second aspect of the present application proposes a method for using reference time information, which is applicable to a source network node.
  • the method includes: sending a mobility management command to a UE, wherein the mobility management command carries reference time information to The UE is instructed to use the reference time information.
  • An embodiment of the third aspect of the present application proposes a method for using reference time information, which is applicable to a target network node.
  • the method includes: sending reference time information to a source network node to instruct the source network node to pass a mobility management command The reference time information is sent to the UE.
  • the embodiment of the fourth aspect of the present application provides an apparatus for using reference time information, which is suitable for UE.
  • the apparatus includes: an acquisition module, configured to acquire the reference time information received in the mobility management command, and use the Reference time information.
  • the embodiment of the fifth aspect of the present application provides an apparatus for using reference time information, which is applicable to a source network node.
  • the apparatus includes: a sending module configured to send a mobility management command to a UE, wherein the mobility management command carries reference time information to instruct the UE to use the reference time information.
  • An embodiment of the sixth aspect of the present application provides an apparatus for using reference time information, which is applicable to a target network node.
  • the apparatus includes: sending reference time information to a source network node, so as to instruct the source network node to send a mobility management command to the source network node.
  • the UE sends the reference time information.
  • Embodiments of the seventh aspect of the present application provide a communication device, including: at least one processor; and a memory communicatively connected to the at least one processor; wherein, the memory stores data that can be executed by the at least one processor The instruction is executed by the at least one processor, so that the at least one processor can execute the method for using the reference time information described in the embodiment of the first aspect of the present application, or the embodiment of the second aspect of the present application.
  • Embodiments of the sixth aspect of the present application provide a computer storage medium, wherein the computer storage medium stores computer-executable instructions, and after the computer-executable instructions are executed by a processor, the embodiments of the first aspect of the present application can be implemented The method for using the reference time information, or the method for using the reference time information described in the embodiment of the second aspect of the present application, or the method for using the reference time information described in the embodiment of the third aspect of the present application.
  • FIG. 1 is a schematic flowchart of a method for using reference time information provided by an embodiment of the present application
  • FIG. 2 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application.
  • FIG. 8 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application.
  • FIG. 9 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application.
  • FIG. 10 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application.
  • FIG. 11 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a device for using reference time information proposed by an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of an apparatus for using reference time information proposed by an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a device for using reference time information proposed by an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of a communication device proposed by an embodiment of the application.
  • the network device may provide reference time information (referenceTimeInfo) to the UE for keeping the clock on the UE side and the clock on the network side in synchronization.
  • the network device cannot send a command carrying the reference time information to the UE during the mobility management process, so that the UE can obtain the reference time information from the target server cell only after changing its serving cell. Therefore, when the clock on the UE side needs to be time synchronized with the clock on the network side, the reference time information provided by the network device cannot be obtained immediately, resulting in a deviation between the clock on the UE side and the clock on the network side, resulting in the loss of the UE clock synchronization. .
  • the embodiments of the present application provide the following method and apparatus for calculating the reference time.
  • FIG. 1 is a schematic flowchart of a method for using reference time information provided by an embodiment of the present application, which is executed by a UE, and the UE is in a mobility management process.
  • the method for calculating reference time includes the following steps:
  • S101 Acquire reference time information received in a mobility management command.
  • the network device may send the reference time information to the UE through a mobility management command, and accordingly, the UE may receive the mobility management command sent by the network device, and obtain the reference time information from the mobility management command .
  • the mobility management process includes any one of the following process switching process, secondary cell group (Secondary Cell Group, SCG) adding process and SCG changing process.
  • the network side includes a source network node (Source Node, S-Node) and a target network node (Target Node, T-Node).
  • the source network node is the source base station
  • the target network node is the target base station.
  • the source network node is the source master node (Master Node, MN)
  • the target network node is the target secondary node (Secondary Node, SN).
  • the source network node in response to the SCG change process being triggered by the MN, the source network node is the source MN, and the target network node is the target SN.
  • the source network node In response to the SCG change process being triggered by the SN, and the UE has been configured with Dual Connectivity (Dual Connectivity, DC), the source network node is the source SN, and the target network node is the target SN.
  • DC Dual Connectivity
  • the UE can change its own primary cell (Primary Cell, PCell).
  • the source network node can send a handover command to the UE through a radio resource control (Radio Resource Control) reconfiguration (RRCReconfiguration) message that carries a synchronization (sync) indication, where the handover command is the source network node.
  • RRCReconfiguration Radio Resource Control
  • the UE can receive the handover command, and obtain the reference time information therefrom.
  • the UE may add a primary secondary serving cell (Primary Secondary Cell, PSCell) as the serving cell of the UE.
  • PSCell Primary Secondary Cell
  • the source network node sends an RRC configuration command for SCG addition to the UE, where the RRC configuration command is a mobility management command sent by the source network node to the UE.
  • the UE can receive the RRC configuration command, and obtain the reference time information therefrom.
  • the UE changes its own PSCell.
  • the source network node sends an RRC configuration command for SCG change to the UE, where the RRC configuration command is a mobility management command sent by the source network node to the UE.
  • the UE can receive the RRC configuration command, and obtain the reference time information therefrom.
  • the reference time information includes at least the absolute time information and the serial number of the network timing unit pointed to by the absolute time information.
  • the absolute time information may be a day/b second/c millisecond/d nanosecond, etc.
  • the number of the network timing unit pointed to by the reference time information may be system frame number-1 (System Frame Number, SFN-1), and the absolute time points to the end position of the radio frame of SFN-1.
  • the network timing unit pointed to by the reference time information includes at least one of the following: at least one of a system frame, a subframe (subframe), a time slot (slot) or a symbol (symbol).
  • the number of the network timing unit pointed to by the reference time information includes at least one of the following: a system frame number (System Frame Number, SFN), a subframe number, a time slot number, and a symbol number.
  • the reference time information may further include: at least one of an absolute time information error and a time information type.
  • the absolute time information error may be an error value of 25ns
  • the time information type may include local time/or time synchronization network (Time Synchronization Network, TSN) time.
  • TSN Time Synchronization Network
  • the UE may acquire the reference time information in the mobility management command, and use the reference time information to synchronize the clock on the UE side with the clock on the network side.
  • the UE configures the number of the network timing unit of the serving cell as the number of the network timing unit pointed to by the reference time information.
  • the serving cell is one of the source network node or the target network node in the mobility management process.
  • the serving cell is configured as a source serving cell or a target serving cell by a network configuration or a protocol.
  • the network side may send appointment indication information to the UE, where the appointment indication information is used to notify the UE that the source network node or the target network node is selected as the serving cell.
  • the source network node or the target network node may be selected as the serving cell based on a protocol agreement.
  • Manner 1 When the serving cell is the source serving cell, the UE directly uses the reference time information and the SFN of the source serving cell after receiving the mobility management command. That is, the UE configures the number of the network timing unit of the source serving cell as the number of the network timing unit pointed to by the reference time information.
  • the UE configures the SFN-1 of the source PCell before the handover as the SFN-1 pointed to by the reference time information. If the mobility management process is an SCG addition process, the UE configures the SFN-1 of the PCell of the source MCG before the SCG addition as the SFN-1 pointed to by the reference time information. If the mobility management process is an SCG change process, the UE configures the SFN-1 of the PSCell of the source SCG before the SCG change as the SFN-1 pointed to by the reference time information.
  • Manner 2 In response to the serving cell being the target serving cell, after receiving the mobility management command, the UE obtains the SFN of the target serving cell and uses the reference time information and the SFN of the target serving cell. That is, the UE first obtains the SFN of the target serving cell, and after synchronizing the SFN of the target serving cell, the UE configures the SFN of the target serving cell as the SFN pointed to by the reference time information. It should be noted that the UE may acquire the SFN of the target serving cell before or after the mobility management process. Obtaining before or after the mobility management procedure may be dictated by the network or agreed upon by the protocol.
  • the UE configures the SFN-1 of the target PCell after the handover as the SFN-1 pointed to by the reference time information. If the mobility management process is an SCG addition process, the UE configures the SFN-1 of the PSCell of the target SCG after the SCG addition as the SFN-1 pointed to by the reference time information. If the mobility management process is an SCG change process, the UE configures the SFN-1 of the PSCell in the target SCG after the SCG change as the SFN-1 pointed to by the reference time information.
  • the network side sends a downlink synchronization signal, and the UE can detect the SFN of the serving cell based on the downlink synchronization signal.
  • the SFN clock is timed according to the SFN. For example, if the detected SFN of the serving cell is 1, the timing of the SFN clock is 1.
  • the UE also includes an absolute time clock, which is measured in nanoseconds.
  • the reference time information includes the number of the network timing unit pointed to by the reference time information, that is, it indicates that the timing is performed at the end position of the number.
  • the number of the network timing unit pointed to by the reference time information is SFN-1.
  • the UE is instructed to use the absolute time information in the reference time information to start timing from the end position of SFN-1.
  • the UE may acquire the number of the network timing unit of the target serving cell before or after the completion of the mobility management. After acquiring the number of the network timing unit of the target serving cell, the UE can use the reference time information and the number of the network timing unit of the target serving cell for the target serving cell.
  • the number of the network timing unit of the target serving cell is obtained before or after the mobility management, which may be indicated by the network side or stipulated in a protocol. That is, the time point when the UE uses the reference time information provided in the mobility management command may be before or after the mobility management procedure, without waiting for the successful completion of the mobility management procedure with the target cell. Taking the handover process as an example, the time point when the UE uses the reference time information provided in the handover command may be before or after the mobility management process, without waiting for the completion of the random access initiated by the UE to the target cell.
  • the UE in the process of mobility management can obtain the reference time information and use the reference time information for the serving cell.
  • the reference time information can be provided to the UE during the mobility management process, thereby solving the problem in the related art that the UE can obtain the reference time information from the target cell only after changing the cell it serves.
  • the UE can obtain the reference time information immediately during the mobility management process, and use the reference time information to realize the time synchronization between the UE's clock and the network side's clock.
  • the problem of out-of-synchronization of the UE in the process of mobility management ensures the timeliness of the correction of the clock of the UE, and the correction is no longer delayed, and can be synchronized with the clock of the network side in real time.
  • FIG. 2 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application, which is performed by a UE, and the UE is in the process of mobility management.
  • the UE is in the process of mobility management.
  • the relevant descriptions in the embodiments of this application and details are not repeated here.
  • the method for using the reference time information includes the following steps:
  • S201 Receive a mobility management command carrying reference time information sent by a source network node.
  • the command carrying the reference time information may be a mobility management command.
  • the source network node may send the mobility management command to the UE through a separate RRC message, that is, the mobility management command is carried through a separate RRC message.
  • the handover command sent by the source network node to the UE is the mobility management command sent by the source network node to the UE.
  • the UE can receive the handover command, and obtain the reference time information therefrom.
  • the RRC configuration command for SCG addition sent by the source network node to the UE is the mobility management command sent by the network device to the UE.
  • the UE can receive the RRC configuration command, and obtain the reference time information therefrom.
  • the RRC configuration command for SCG change sent by the source network node to the UE is the mobility management command sent by the network device to the UE.
  • the UE can receive the RRC configuration command, and obtain the reference time information therefrom.
  • the mobility management command may not directly carry the reference time information.
  • the target network node may construct a signaling container when generating the mobility management command, and the source network node may Let the container send the reference time information to the UE, optionally, the source network node may send the reference time information to the UE through the first signaling container (RRCContainer) in the RRC message.
  • the source network node may send the reference time information to the UE through the second signaling container in the Response message.
  • the source network node also sends other commands carrying the reference time information to the UE, which may be synchronized with the mobility management command or sent to the UE before sending the mobility management command to the UE. That is, before receiving the mobility management command, the UE firstly receives the reference time information sent by the source network node through other commands.
  • the reference time information can be sent to the UE in the mobility management command in the following two ways.
  • Mode 1 the reference time information is directly indicated in a radio resource control (Radio Resource Control, RRC) message.
  • RRC Radio Resource Control
  • the referenceTimeInfo is directly carried in the RRC reconfiguration (RRCReconfiguration) message.
  • Manner 2 A signaling container is carried in a specific message, and the signaling container includes an independent RRC message that can carry reference time information.
  • a signaling container (RRCContainer) may be carried in the RRCReconfiguration message, a downlink information transfer RRC (DLInformationTransferRRC) message may be carried in the RRCContainer, and referenceTimeInfo may be carried in the DLInformationTransfer RRC message.
  • the specific message may be an RRC message or a response (Response) message.
  • Step S202 may be implemented in any one of the embodiments of the present application, which is not limited in the embodiments of the present application, and will not be described again.
  • the reference time information can be carried in the mobility management command, so that the UE can obtain the reference time information during the mobility management process, so as to solve the problem in the related art that the UE only changes the serving cell after changing the serving cell. Only then can the reference time information be obtained from the target cell.
  • the UE can obtain the reference time information immediately during the mobility management process, and use the reference time information to realize the time synchronization between the UE's clock and the network side's clock.
  • the problem of out-of-synchronization of the UE in the process of mobility management ensures the timeliness of the correction of the clock of the UE, and the correction is no longer delayed, and can be synchronized with the clock of the network side in real time.
  • FIG. 3 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application, which is performed by a UE, and the UE is in a mobility management process.
  • the method for using the reference time information includes the following steps:
  • S301 Acquire reference time information received in the mobility management command.
  • Step S301 may be implemented in any one of the embodiments of the present application, which is not limited in the embodiments of the present application, and will not be described again.
  • the UE side Due to the transmission delay of signal transmission, for the end position of the same SFN number, the UE side will be delayed for a period of time than the network side. In order to make the UE side and the network side have a consistent understanding of the reference time information, it is necessary to perform transmission delay compensation on the reference time information. Before performing the transmission delay compensation, it is also necessary to judge whether the UE satisfies the delay compensation condition, and when the delay compensation condition is satisfied, perform the transmission delay compensation on the reference time information.
  • the indication information sent by the source network node to perform transmission delay compensation on the reference time information in response to receiving the indication information, it is determined that the condition for delay compensation is satisfied. For example, when the handover command sends the reference time information to the UE, the UE may be instructed at the same time that the UE needs to perform transmission delay compensation on the reference time information when using the reference time information.
  • the delay compensation condition is satisfied.
  • the timing threshold value is a network configuration or a protocol agreement.
  • the cell to which the network timing unit pointed to by the reference time information in the reference time information belongs is the target serving cell, the UE initiates random access to the target serving cell, and after the random access is successfully completed, the UE finds that the uplink timing of the target serving cell exceeds the timing If the threshold value is set, it is determined that transmission delay compensation needs to be performed on the reference time information.
  • the delay compensation condition is satisfied.
  • the strength threshold value is a network configuration or a protocol agreement.
  • the cell to which the network timing unit pointed to by the reference time information belongs is the target serving cell
  • the UE initiates a handover process in the target serving cell
  • the reference signal received strength (Reference Signal Received Power, RSRP) of the target serving cell is less than or equal to the strength threshold value , it is determined that the delay compensation condition is satisfied.
  • RSRP Reference Signal Received Power
  • the delay compensation condition in response to the fact that the measured path loss value of the specific reference signal of the cell to which the network timing unit pointed to by the reference time information belongs is greater than or equal to the loss threshold value, it is determined that the delay compensation condition is satisfied.
  • the cell to which the network timing unit pointed to by the reference time information belongs is the target serving cell, and the UE initiates a random access procedure in the target serving cell. or equal to the loss threshold value, it is determined that the delay compensation condition is satisfied.
  • the UE uses the transmission delay of the source serving cell as the transmission delay compensation amount for the reference time.
  • the UE uses the transmission delay of the target serving cell as the transmission delay compensation amount for the reference time.
  • the reference time information is compensated, and then the compensated reference time information is used for the serving cell.
  • the UE obtains the transmission delay compensation amount by obtaining the uplink timing advance of the cell to which the network timing unit pointed by the reference time information belongs, and performs transmission delay compensation on the reference time information based on the transmission delay compensation amount.
  • the transmission delay compensation amount is obtained based on the transmission path loss of the specific reference signal of the cell to which the network timing unit points to the reference time information, and the transmission delay compensation is performed on the reference time information based on the transmission delay compensation amount.
  • the mapping relationship between the transmission delay compensation amount and the transmission path loss is established in advance. After the transmission path loss of a specific reference signal is obtained, the transmission delay compensation amount can be obtained based on the mapping relationship.
  • the characteristic reference signal may include at least one of SSB and/or channel state information reference signal (Channel State Information Reference Signal CSI-RS).
  • step S303 may be implemented in any one of the embodiments of the present application, which is not limited in the embodiments of the present application, and will not be described again.
  • the reference time information can be carried in the mobility management command, so that the UE can obtain the reference time information during the mobility management process, so as to solve the problem in the related art that the UE can only change the serving cell from the UE.
  • the problem that the target cell obtains the reference time information.
  • the problem of transmission delay is considered, and the transmission delay of the reference time information is compensated, so that the clock synchronization can be performed more accurately.
  • FIG. 4 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application, which is executed by a UE. As shown in Figure 4, the method for using the reference time information includes the following steps:
  • S401 Send the selection indication information of the reference time information to the source network node, so as to indicate that at least a part of the candidate time information is selected as the reference time information.
  • the source network node may receive selection indication information of the reference time information sent by the UE, where the selection indication information is used to indicate selection of time information that the UE is interested in.
  • the source network node can send it to the target network node, and the target network node can carry the time information of interest in the mobility management command based on the selection indication information and send it to the source network node.
  • the target network node may select at least one of the absolute time information error and the time information type as the time information of interest based on the selection indication information, carry it in the mobility management command and send it to the source network node.
  • the target network node may select a number from the system frame number (System Frame Number, SFN), subframe number, time slot number, and symbol number based on the selection indication information as the number of the network timing unit pointed to by the reference time information to carry the number.
  • Sent to the source network node in a mobility management command That is, the target network node selects interested time information from multiple candidate reference time information based on the selection indication information to generate the reference time information, and carries it in the mobility management command and sends it to the source network node.
  • S402 Receive a mobility management command sent by the source network node, where the mobility management command carries reference time information.
  • Steps S402 to S403 may be implemented in any of the embodiments of the present application, which are not limited in the embodiments of the present application, and will not be described again.
  • the reference time information can be carried in the mobility management command, so that the UE can obtain the reference time information during the mobility management process, so as to solve the problem in the related art that the UE can only change the serving cell from the UE.
  • the problem that the target cell obtains the reference time information.
  • the reference time information carried in the mobility management command can be selected based on the indication of the UE, so that the transmission of the reference time information is more flexible.
  • FIG. 5 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application, which is executed by a source network node. As shown in Figure 5, the method for using the reference time information includes the following steps:
  • the UE is in the process of mobility management.
  • the source network node may send reference time information to the UE through a mobility management command.
  • the mobility management process includes any one of the following process switching process, SCG adding process and SCG changing process.
  • the source network node is the source base station
  • the target network node is the target base station.
  • the source network node is the source MN
  • the target network node is the target SN.
  • the SCG change process in response to the SCG change process being triggered by the MN, the source network node is the source MN, and the target network node is the target SN.
  • the source network node is the source SN
  • the target network node is the target SN.
  • the handover command sent by the source network node to the UE wherein the handover command is the mobility management command sent by the source network node to the UE.
  • the source network node sends an RRC configuration command for SCG addition to the UE, where the RRC configuration command is a mobility management command sent by the source network node to the UE.
  • the source network node sends an RRC configuration command for SCG change to the UE, where the RRC configuration command is a mobility management command sent by the source network node to the UE.
  • the mobility management command may be implemented in any one of the embodiments of the present application, which is not limited in the embodiments of the present application, and will not be described again.
  • the reference time information includes at least the absolute time information and the serial number of the network timing unit pointed to by the absolute time information.
  • the network timing unit pointed to by the reference time information includes at least one of the following: at least one of a system frame, a subframe (subframe), a time slot (slot) or a symbol (symbol).
  • the number of the network timing unit pointed to by the reference time information includes at least one of the following: a system frame number (System Frame Number, SFN), a subframe number, a time slot number, and a symbol number.
  • the reference time information may further include: at least one of an absolute time information error and a time information type.
  • the UE can obtain the reference time information immediately during the mobility management process, and use the obtained reference time information for the serving cell.
  • the serving cell is one of the source network node or the target network node in the mobility management process.
  • the network side may send appointment indication information to the UE, where the appointment indication information is used to notify the UE that the source network node or the target network node is selected as the serving cell.
  • the source network node or the target network node may be selected as the serving cell based on a protocol agreement.
  • the UE in the process of mobility management can obtain the reference time information and use the reference time information for the serving cell.
  • the reference time information can be provided to the UE during the mobility management process, thereby solving the problem in the related art that the UE can obtain the reference time information from the target cell only after changing the cell it serves.
  • the UE can obtain the reference time information immediately during the mobility management process, and use the reference time information to realize the time synchronization between the UE's clock and the network side's clock.
  • the problem of out-of-synchronization of the UE in the process of mobility management ensures the timeliness of the correction of the clock of the UE, and the correction is no longer delayed, and can be synchronized with the clock of the network side in real time.
  • FIG. 6 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application, which is executed by a source network node. As shown in Figure 6, the method for using the reference time information includes the following steps:
  • S601 Receive reference time information sent by a target network node.
  • the command carrying the reference time information may be a mobility management command or a signaling container.
  • the source network node may receive the first RRC message sent by the target network node, where the first RRC message includes reference time information.
  • the source network node may receive a second RRC message sent by the target network node, where the second RRC message includes a first signaling container, and the first signaling container includes reference time information.
  • the source network node may receive a response (Response) message sent by the target network node through the Xn interface, where the Response message includes a second signaling container, and the second signaling container includes reference time information .
  • S602 Send a mobility management command carrying the reference time information to the UE to instruct the UE to use the reference time information.
  • the source network node may send the reference time information to the UE through a mobility management command.
  • the UE After the UE receives the mobility management command, it can obtain the reference time information, and then use the reference time information for the serving cell to realize clock synchronization between the UE side and the network side.
  • the process that the UE obtains the reference time information and uses the reference time information for the serving cell may be implemented in any of the embodiments of the present application, which is not limited in the embodiments of the present application, and will not be described again.
  • the reference time information is obtained from the target network node, and the UE clock synchronization is performed based on the reference time information, which can ensure that the clocks of the UE side and the target serving cell are kept synchronized.
  • FIG. 7 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application, which is executed by a source network node. As shown in Figure 7, the method for using the reference time information includes the following steps:
  • S701 Receive indication information sent by a target network node, where the indication information is used to indicate whether reference time information is carried in the mobility management command.
  • the target network node may send indication information to the source network node, where the indication information may indicate whether reference time information is provided in the mobility management command.
  • the source network node after the source network node receives the indication information, without reading the mobility management command in the signaling container, the source network node can know whether the target network node has sent the reference time information to the UE according to the indication information .
  • S702 Receive a mobility management command sent by the target network node.
  • the source network node can determine whether the mobility management command carries the reference time information according to the above-mentioned indication information, and if the mobility management command carries the reference time information, it directly sends the mobility management command to the UE.
  • the source network node may send the reference time information to the UE through other commands carrying the reference time information.
  • Other commands carrying reference time information may be synchronized with the mobility management command or sent to the UE before the mobility management command is sent to the UE. That is, before receiving the mobility management command, the UE firstly receives the reference time information sent by the source network node through other commands.
  • the source network node can receive the indication information, and based on the indication information, can determine whether the reference time information is carried in the mobility management command. When the reference time information is not carried, it can be sent to the UE before the mobility management command, so as to ensure that the UE can perform clock synchronization during the mobility management process.
  • FIG. 8 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application, which is executed by a source network node. As shown in Figure 8, the method for using the reference time information includes the following steps:
  • the source network node before sending the reference time information to the UE, the source network node sends a mobility management request to the target network node.
  • the source network node sends a handover request to the target network node during the handover process. That is to say, the handover request during the handover process is the mobility management request.
  • the source network node sends an SCG addition request to the target network node. That is to say, in the SCG adding process, the SCG adding request is the mobility management request.
  • the source network node sends an SCG change request to the target network node. That is to say, the SCG change request is the mobility management request during the SCG change process.
  • the source network node may also send request signaling to the target network node, and request the target network node to provide reference time information to the source network node through the request information.
  • the request signaling may be carried in the mobility management request, or may be a separate request, synchronized with the mobility management request, or sent to the target network node before or after the mobility management request.
  • S802 Receive a mobility management command sent by the target network node, where the mobility management command carries reference time information.
  • the target network node may construct a mobility management command carrying the reference time information, and send the mobility management command to the source network node, and correspondingly, the source network node may receive the mobility management command carrying the reference time information. command, so that the reference time information can be sent to the UE.
  • the source network node may receive selection indication information of the reference time information sent by the UE, where the selection indication information is used to indicate selection of time information that the UE is interested in.
  • the source network node After receiving the selection indication information sent by the UE, the source network node can send it to the target network node, and the target network node can carry the time information of interest in the mobility management command based on the selection indication information, and send it to the source network node. .
  • S803 Send a mobility management command carrying the reference time information to the UE to instruct the UE to use the reference time information.
  • Step S803 may be implemented in any one of the embodiments of the present application, which is not limited in the embodiments of the present application, and will not be described again.
  • the reference time information can be carried in the mobility management command, so that the UE can obtain the reference time information during the mobility management process, so as to solve the problem in the related art that the UE can only change the serving cell from the UE.
  • the problem that the target cell obtains the reference time information.
  • the reference time information carried in the mobility management command can be selected based on the indication of the UE, so that the transmission of the reference time information is more flexible.
  • FIG. 9 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application, which is executed by a target network node. As shown in Figure 9, the method for using the reference time information includes the following steps:
  • S1001 Send reference time information to a source network node to instruct the source network node to send reference time information to a UE through a mobility management command.
  • the UE is in the mobility management process, in order to ensure that the clock on the UE side is synchronized with the network side, the target network node may send reference time information to the source network node. After receiving the reference time information sent by the target network node, the source network node may send the reference time information to the UE through a mobility management command. After receiving the reference time information, the UE can use the reference time information for the serving cell.
  • the target network node sends a first RRC message to the source network node, where the first RRC message includes reference time information.
  • the target network node sends a second RRC message to the source network node, where the second RRC message includes a first signaling container, and the first signaling container includes reference time information.
  • the target network node sends a response (Response) message to the source network node, wherein the Response RRC message includes a second signaling container, and the second signaling container includes reference time information.
  • the source network node may receive selection indication information of the reference time information sent by the UE, where the selection indication information is used to indicate selection of time information that the UE is interested in.
  • the target network node may receive the selection indication information from the source network node, and based on the selection indication information, carry the time information of interest in the mobility management command, and send it to the source network node.
  • the reference time information may be carried in the mobility management command, or the reference time information may not be carried in the mobility management command.
  • the target network node may send indication information to the source network node, where the indication information may indicate whether reference time information is provided in the mobility management command. After the source network node receives the indication information, without reading the mobility management command in the signaling container, the source network node can know whether the target network node sends the reference time information to the UE according to the indication information.
  • FIG. 10 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application, which is executed by a target network node. As shown in Figure 10, the method for using the reference time information includes the following steps:
  • S1001 Receive a mobility management request sent by a source network node.
  • the source network node may send a mobility management request to the target network node.
  • the source network node sends a handover request to the target network node during the handover process. That is to say, the handover request during the handover process is the mobility management request.
  • the source network node sends an SCG addition request to the target network node. That is to say, in the SCG adding process, the SCG adding request is the mobility management request.
  • the source network node sends an SCG change request to the target network node. That is to say, the SCG change request is the mobility management request during the SCG change process.
  • the target network node may also receive request signaling sent by the source network node.
  • the request information is used to request the target network node to provide reference time information to the source network node.
  • the target network node may also receive selection indication information of the reference time information sent by the source network node, where the selection indication information is used to instruct the target network node to select time information that the UE is interested in.
  • S1002 Send a mobility management command to the source network node to instruct the source network node to send reference time information to a UE in a mobility management process, where the mobility management command carries the reference time information.
  • the target network node may send reference time information to the source network node. After receiving the reference time information sent by the target network node, the source network node can see that the reference time information is sent to the UE, and after receiving the reference time information, the UE can use the reference time information for the serving cell.
  • the reference time information For the introduction of the mobility management process and the reference time information, reference may be made to the relevant descriptions in the embodiments of the present application, and details are not repeated here.
  • the target network node may send a command carrying the reference time information to the source network node.
  • the command carrying the reference time information may be a mobility management command, or may be other commands.
  • the target network node sends the command carrying the reference time information to the source network node using any one of the embodiments of the present application, which is not limited in the embodiments of the present application, and will not be described again.
  • FIG. 11 is a schematic flowchart of another use of reference time information provided by an embodiment of the present application. As shown in Figure 11, the method for using the reference time information includes the following steps:
  • the source network node sends a mobility management request to the target network node.
  • the mobility management requests sent by the source network node to the target network node are also different.
  • the handover request in the handover process is the mobility management request;
  • the SCG addition request in the SCG addition process is the mobility management request;
  • the SCG change request in the SCG change process is the mobility management request.
  • the source network node may receive selection indication information of the reference time information sent by the UE, where the selection indication information is used to instruct the target network node to select time information that the UE is interested in, that is, instruct the target network node to select the time information from multiple candidate time information. Select at least part of it as the reference time information.
  • the target network node sends reference time information to the source network node.
  • the target network node may send a command carrying the reference time information to the source network node.
  • the command carrying the reference time information may be a mobility management command, or may be other commands.
  • the source network node sends reference time information to the UE.
  • the target network node may send a command carrying the reference time information to the source network node.
  • the command carrying the reference time information may be a mobility management command, or may be other commands.
  • the reference time information may be carried in the mobility management command, or the reference time information may not be carried in the mobility management command.
  • the target network node may send indication information to the source network node, where the indication information may indicate whether reference time information is provided in the mobility management command. After the source network node receives the indication information, without reading the mobility management command in the signaling container, the source network node can know whether the target network node sends the reference time information to the UE according to the indication information.
  • the UE uses the reference time information.
  • Step S1104 may be implemented in any one of the embodiments of the present application, which is not limited in the embodiments of the present application, and will not be described again.
  • the UE in the process of mobility management can obtain the reference time information, and use the reference time information for the serving cell.
  • the reference time information can be provided to the UE during the mobility management process, thereby solving the problem in the related art that the UE can obtain the reference time information from the target cell only after changing the cell it serves.
  • the UE can obtain the reference time information immediately during the mobility management process, and use the reference time information to realize the time synchronization between the UE's clock and the network side's clock.
  • the problem of out-of-synchronization of the UE in the process of mobility management ensures the timeliness of the correction of the clock of the UE, and the correction is no longer delayed, and can be synchronized with the clock of the network side in real time.
  • the present application also provides a device for using the reference time information.
  • the method for using the reference time information provided in this embodiment corresponds to the method for using the reference time information. Therefore, the implementation of the method for using the reference time information is also applicable to the device for using the reference time information provided in this embodiment, which will not be described in detail in this embodiment.
  • FIG. 12 is a schematic structural diagram of an apparatus for using reference time information according to an embodiment of the present application.
  • the apparatus for using the reference time information is applicable to the UE, and the UE is in the process of mobility management.
  • the apparatus 1200 for using the reference time information includes: an acquisition module 121 .
  • the obtaining module 121 is configured to obtain the reference time information received in the mobility management command, and use the reference time information.
  • the obtaining module 121 includes: a configuration unit 1211 .
  • the configuration unit 1211 is configured to configure the number of the network timing unit of the serving cell as the number of the network timing unit pointed to by the reference time information.
  • the serving cell is configured or agreed by the network as a source serving cell or a target serving cell.
  • the configuration unit 1211 is further configured to directly use the reference time information and the SFN of the source serving cell after receiving the mobility management command when the serving cell is the source serving cell.
  • the configuration unit 1211 is further configured to use the reference time information after obtaining the SFN of the target serving cell after receiving the mobility management command when the serving cell is the target serving cell and the SFN of the target serving cell.
  • the configuration unit 1211 is further configured to obtain the SFN of the target serving cell before or after the mobility management is successful.
  • the obtaining module 121 further includes: a receiving unit 1212 .
  • the receiving unit 1212 is further configured to receive a mobility management command that carries the reference time information and is sent by the source network node.
  • the apparatus 1200 for using the reference time information includes: a delay compensation module 122 .
  • the delay compensation module 122 is configured to perform transmission delay compensation on the reference time information in response to satisfying the delay compensation condition before using the reference time information for the serving cell.
  • the delay compensation condition includes at least one of the following:
  • the uplink transmission timing value of the cell to which the network timing unit pointed to by the reference time information belongs is greater than or equal to the timing threshold value
  • the measured signal strength of the cell to which the network timing unit pointed to by the reference time information belongs is less than or equal to the strength threshold
  • the path loss measurement value of the specific reference signal of the cell to which the network timing unit pointed to by the reference time information belongs is greater than or equal to the loss threshold value.
  • the delay compensation module 132 is further configured to obtain a transmission delay compensation amount based on the uplink timing advance of the cell to which the network timing unit pointed to by the reference time information belongs, and based on the transmission delay compensation amount, calculate the transmission delay compensation amount. Perform transmission delay compensation with reference to the time information; or, obtain the transmission delay compensation amount based on the transmission path loss of the specific reference signal of the cell to which the network timing unit pointed to by the reference time information belongs, and compensate for the transmission delay based on the transmission delay compensation and performing transmission delay compensation on the reference time information.
  • the reference time information includes: absolute time information, and the serial number of the network timing unit corresponding to the absolute time information.
  • the reference time information further includes: absolute time information error and/or time information type.
  • the number of the network timing unit includes at least one of the following:
  • the apparatus 1200 for using the reference time information includes: a sending module 123 .
  • the sending module 123 is configured to send the selection indication information of the reference time information to the source network node before the acquisition of the reference time information, so as to indicate that at least part of the reference time information is selected from multiple candidate time information as the reference time information.
  • the UE in the process of mobility management can obtain the reference time information, and use the reference time information for the serving cell.
  • the reference time information can be provided to the UE during the mobility management process, thereby solving the problem in the related art that the UE can obtain the reference time information from the target cell only after changing the cell it serves.
  • the UE can obtain the reference time information immediately during the mobility management process, and use the reference time information to realize the time synchronization between the UE's clock and the network side's clock.
  • the problem of out-of-synchronization of the UE in the process of mobility management ensures the timeliness of the correction of the clock of the UE, and the correction is no longer delayed, and can be synchronized with the clock of the network side in real time.
  • FIG. 13 is a schematic structural diagram of an apparatus for using reference time information according to an embodiment of the present application.
  • the means for using the reference time information is applicable to the source network node.
  • the apparatus 1300 for using the reference time information includes: a sending module 131 .
  • the sending module 131 is configured to send a mobility management command to the UE, wherein the mobility management command carries reference time information to instruct the UE to use the reference time information.
  • the apparatus 1300 for using the reference time information includes: a receiving module 132 .
  • the receiving module 132 is configured to receive the reference time information sent by the target network node before sending the reference time information to the UE.
  • the sending module 131 is further configured to send request signaling to the target network node before receiving the reference time information sent by the target network node, wherein the request signaling is used to request the target network node The reference time information is provided.
  • the receiving module 132 is further configured to receive a first RRC message sent by the target network node, where the first RRC message includes the reference time information; or,
  • a response message sent by the target network node is received, wherein the response message includes a second signaling container, and the second signaling container includes the reference time information.
  • the sending module 131 is further configured to send a mobility management request to the target network node.
  • the receiving module 132 is further configured to receive the mobility management command sent by the target network node.
  • the receiving module 132 is further configured to receive indication information sent by the target network node, where the indication information is used to indicate whether the reference time information is carried in the mobility management command.
  • the receiving module 132 is further configured to receive the selection indication information of the reference time information sent by the UE before the target network node sends the reference time information.
  • the sending module 131 is further configured to send selection indication information of the reference time information to the target network node, so as to instruct the target network node to select at least part of the reference time information from a plurality of candidate time information.
  • the UE in the process of mobility management can obtain the reference time information, and use the reference time information for the serving cell.
  • the reference time information can be provided to the UE during the mobility management process, thereby solving the problem in the related art that the UE can obtain the reference time information from the target cell only after changing the cell it serves.
  • the UE can obtain the reference time information immediately during the mobility management process, and use the reference time information to realize the time synchronization between the UE's clock and the network side's clock.
  • the problem of out-of-synchronization of the UE in the process of mobility management ensures the timeliness of the correction of the clock of the UE, and the correction is no longer delayed, and can be synchronized with the clock of the network side in real time.
  • FIG. 14 is a schematic structural diagram of an apparatus for using reference time information according to an embodiment of the present application.
  • the means for using the reference time information are applicable to the target network node.
  • the apparatus 1400 for using the reference time information includes: a sending module 141 .
  • the sending module 141 is configured to send the reference time information to the source network node, so as to instruct the source network node to send the reference time information to the UE through a mobility management command.
  • the apparatus 1400 for using the reference time information includes: a receiving module 142 .
  • the receiving module 142 is configured to receive request signaling sent by the source network node before sending the reference time information to the source network node, where the request signaling is used to request the target network node to provide the reference time information.
  • the receiving module 142 is further configured to send a first RRC message to the source network node, where the first RRC message includes the reference time information; or,
  • the source network node sends a response message to the source network node, wherein the response message includes a second signaling container, and the second signaling container includes the reference time information.
  • the receiving module 142 is further configured to receive a mobility management request sent by the source network node.
  • the sending module 141 is further configured to send the mobility management command to the source network node.
  • the sending module 141 is further configured to send indication information to the source network node, where the indication information is used to indicate whether the reference time information is carried in the mobility management command.
  • the receiving module 142 is further configured to, before the sending of the reference time information to the source network node, receive the selection indication information of the reference time information sent by the source network node, and select from multiple candidates. At least part of the time information is selected as the reference time information.
  • the UE in the process of mobility management can obtain the reference time information, and use the reference time information for the serving cell.
  • the reference time information can be provided to the UE during the mobility management process, thereby solving the problem in the related art that the UE can obtain the reference time information from the target cell only after changing the cell it serves.
  • the UE can obtain the reference time information immediately during the mobility management process, and use the reference time information to realize the time synchronization between the UE's clock and the network side's clock.
  • the problem of out-of-synchronization of the UE in the process of mobility management ensures the timeliness of the correction of the clock of the UE, and the correction is no longer delayed, and can be synchronized with the clock of the network side in real time.
  • the present application further provides a communication device and a readable storage medium.
  • the communication device includes: one or more processors 1610, a memory 1620, and interfaces for connecting various components, including a high-speed interface and a low-speed interface.
  • the various components are interconnected using different buses and may be mounted on a common motherboard or otherwise as desired.
  • the processor may process instructions executed within the communication device, including instructions stored in or on memory to display graphical information of the GUI on an external input/output device, such as a display device coupled to the interface.
  • multiple processors and/or multiple buses may be used with multiple memories and multiple memories, if desired.
  • multiple communication devices may be connected, each providing some of the necessary operations (e.g., as a server array, a group of blade servers, or a multi-processor system).
  • a processor 1610 is used as an example.
  • the memory 1620 is the non-transitory computer-readable storage medium provided by the present application.
  • the memory stores instructions executable by at least one processor, so that the at least one processor executes the method for using the reference time information provided in this application.
  • the non-transitory computer-readable storage medium of the present application stores computer instructions for causing the computer to execute the method of using the reference time information provided by the present application.
  • the memory 1620 can be used to store non-transitory software programs, non-transitory computer-executable programs and modules, such as program instructions/modules corresponding to the method for using reference time information in the embodiments of the present application.
  • the processor 1610 executes various functional applications and data processing of the server by running the non-transitory software programs, instructions and modules stored in the memory 1620, that is, implementing the method for using the reference time information in the above method embodiments.
  • the memory 1620 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the positioning communication device, and the like. Additionally, memory 1620 may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid-state storage device. Optionally, memory 1620 may optionally include memory located remotely from processor 1610, and these remote memories may be connected to the positioning communication device via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • the communication device may also include: an input device 1630 and an output device 1640 .
  • the processor 1610, the memory 1620, the input device 1630, and the output device 1640 may be connected through a bus or in other ways, and the connection through a bus is taken as an example in FIG. 15 .
  • the input device 1630 can receive input numerical or character information and generate key signal input related to user settings and functional control of the positioning communication device, such as a touch screen, keypad, mouse, trackpad, touchpad, pointing stick, one or more Input devices such as mouse buttons, trackballs, joysticks, etc.
  • the output device 1640 may include a display device, auxiliary lighting devices (eg, LEDs), haptic feedback devices (eg, vibration motors), and the like.
  • the display device may include, but is not limited to, a liquid crystal display (LCD), a light emitting diode (LED) display, and a plasma display. In some implementations, the display device may be a touch screen.
  • Various implementations of the systems and techniques described herein can be implemented in digital electronic circuitry, integrated circuit systems, application specific ASICs (application specific integrated circuits), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include being implemented in one or more computer programs executable and/or interpretable on a programmable system including at least one programmable processor that The processor, which may be a special purpose or general-purpose programmable processor, may receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device an output device.
  • the processor which may be a special purpose or general-purpose programmable processor, may receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device an output device.
  • machine-readable medium and “computer-readable medium” refer to any computer program product, apparatus, and/or apparatus for providing machine instructions and/or data to a programmable processor ( For example, magnetic disks, optical disks, memories, programmable logic devices (PLDs), including machine-readable media that receive machine instructions as machine-readable signals.
  • machine-readable signal refers to any signal used to provide machine instructions and/or data to a programmable processor.
  • the systems and techniques described herein may be implemented on a computer having a display device (eg, a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user ); and a keyboard and pointing device (eg, a mouse or trackball) through which a user can provide input to the computer.
  • a display device eg, a CRT (cathode ray tube) or LCD (liquid crystal display) monitor
  • a keyboard and pointing device eg, a mouse or trackball
  • Other kinds of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (eg, visual feedback, auditory feedback, or tactile feedback); and can be in any form (including acoustic input, voice input, or tactile input) to receive input from the user.
  • the systems and techniques described herein may be implemented on a computing system that includes back-end components (eg, as a data server), or a computing system that includes middleware components (eg, an application server), or a computing system that includes front-end components (eg, a user's computer having a graphical user interface or web browser through which a user may interact with implementations of the systems and techniques described herein), or including such backend components, middleware components, Or any combination of front-end components in a computing system.
  • the components of the system may be interconnected by any form or medium of digital data communication (eg, a communication network). Examples of communication networks include: Local Area Networks (LANs), Wide Area Networks (WANs), and the Internet.
  • a computer system can include clients and servers.
  • Clients and servers are generally remote from each other and usually interact through a communication network.
  • the relationship of client and server arises by computer programs running on the respective computers and having a client-server relationship to each other.
  • each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically alone, or two or more units may be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. If the integrated modules are implemented in the form of software functional modules and sold or used as independent products, they may also be stored in a computer-readable storage medium.
  • the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, and the like.

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Abstract

本申请提出了一种参考时间信息的使用方法及装置，涉及无线通信技术领域。该方案为：UE获取在移动性管理命令中接收到的参考时间信息，并使用参考时间信息。本申请中，可以在移动性管理过程中向UE提供参考时间信息，从而可以解决相关技术中UE只有在变更其服务的小区后，才能从目标小区获取到参考时间信息的问题。UE能够在移动性管理过程中即时获取到参考时间信息，并使用该参考时间信息来实现UE侧时钟与网络侧的时钟的同步，无需等待移动性管理过程结束后再进行时钟同步。保证UE侧时钟的纠偏的及时性，不再延后纠偏，实时能与网络侧的时钟保持同步。

Description

一种参考时间信息的使用方法及装置 技术领域
本发明涉及移动通信领域，特别是指一种参考时间信息的使用方法及装置。
背景技术
在通信系统中，用户设备(User Equipment，UE)的时钟需要和网络侧的时钟同步。若UE侧时钟和网络侧时钟产生偏差，往往会出现传输信息或数据的丢失。
发明内容
本申请提出的参考时间信息的使用方法、装置、通信设备和存储介质，用于获取在移动性管理命令中接收到的参考时间信息，并使用该参考时间信息，以实现UE侧时钟和网络侧时钟同步。
本申请第一方面实施例提出了一种参考时间信息的使用方法，适用于UE，所述方法包括：获取在移动性管理命令中接收到的参考时间信息，并使用所述参考时间信息。
本申请第二方面实施例提出了一种参考时间信息的使用方法，适用于源网络节点，所述方法包括：向UE发送移动性管理命令，其中所述移动性管理命令携带参考时间信息，以指示所述UE使用所述参考时间信息。
本申请第三方面实施例提出了一种参考时间信息的使用方法，适用于目标网络节点，所述方法包括：向源网络节点发送参考时间信息，以指示所述源网络节点通过移动性管理命令向UE发送所述参考时间信息。
本申请第四方面实施例提出了一种参考时间信息的使用装置，适用于UE，该装置包括：获取模块，被配置为获取在移动性管理命令中接收到的参考时间信息，并使用所述参考时间信息。
本申请第五方面实施例提出了一种参考时间信息的使用装置，适用于源网络节点，该装置包括：发送模块，被配置为向UE发送移动性管理命令，其中所述移动性管理命令携带参考时间信息，以指示所述UE使用所述参考时间信息。
本申请第六方面实施例提出了一种参考时间信息的使用装置，适用于目标网络节点，该装置包括：向源网络节点发送参考时间信息，以指示所述源网络节点通过移动性管理命令向UE发送所述参考时间信息。
本申请第七方面实施例提供了一种通信设备，包括：至少一个处理器；以及与所述至少一个处理器通信连接的存储器；其中，所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行本申请第一方面实施例所述的参考时间信息的使用方法，或者本申请第二方面实施例所述的参考时间信息的使用方法，或者本申请第三方面实施例所述的参考时间信息的使用方法。
本申请第六方面实施例提供了一种计算机存储介质，其中，所述计算机存储介质存储有计算机可执行指令，所述计算机可执行指令被处理器执行后，能够实现本申请第一方面实施例所述的参考时间信息的使用方法，或者本申请第二方面实施例所述的参考时间信息的使用方法，或者本申请第三方面实施例所述的参考时间信息的使用方法。
应当理解，本申请所描述的内容并非旨在标识本申请的实施例的关键或重要特征，也不用于限制本申请的范围。本申请的其它特征将通过以下的说明书而变得容易理解。
附图说明
本申请上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解，其中：
图1为本申请实施例提供的一种参考时间信息的使用方法的流程示意图；
图2为本申请实施例提供的另一种参考时间信息的使用的流程示意图；
图3为本申请实施例提供的另一种参考时间信息的使用的流程示意图；
图4为本申请实施例提供的另一种参考时间信息的使用的流程示意图；
图5为本申请实施例提供的另一种参考时间信息的使用的流程示意图；
图6为本申请实施例提供的另一种参考时间信息的使用的流程示意图；
图7为本申请实施例提供的另一种参考时间信息的使用的流程示意图；
图8为本申请实施例提供的另一种参考时间信息的使用的流程示意图；
图9为本申请实施例提供的另一种参考时间信息的使用的流程示意图；
图10为本申请实施例提供的另一种参考时间信息的使用的流程示意图；
图11为本申请实施例提供的另一种参考时间信息的使用的流程示意图；
图12为本申请实施例提出的一种参考时间信息的使用装置的结构示意图；
图13为本申请实施例提出的一种参考时间信息的使用装置的结构示意图；
图14为本申请实施例提出的一种参考时间信息的使用装置的结构示意图；
图15为本申请实施例提出的一种通信设备的结构示意图。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件、或具有相同或类似功能的元件。下面参考附图描述的实施例是示例性的，旨在用于解释本申请，而不能理解为对本申请的限制。
相关技术中，网络设备可以向UE提供参考时间信息(referenceTimeInfo)，用于保持UE侧的时钟与网络侧的时钟可以同步。但是网络设备无法在移动性管理过程中向UE发送携带参考时间信息的命令，从而导致UE只有在变更其服务小区后，才能从目标服务器小区内获取到参考时间信息。因此会导致UE侧的时钟在需要和网络侧的时钟进行时间同步的时候，无法即时获取到网络设备提供的参考时间信息，从而导致UE侧时钟和网络侧时钟产生偏差，导致UE的时钟失步。为了解决上述技术问题，本申请实施例提供了下述计算参考时间的方法及装置。
图1为本申请实施例提供的一种参考时间信息的使用方法的流程示意图，由UE执行，UE处于移动性管理过程中，如图1所示，该计算参考时间的方法包括以下步骤：
S101，获取在移动性管理命令中接收到的参考时间信息。
本申请实施例中，网络设备可以通过移动性管理命令向UE发送参考时间信息，相应地，UE可以接收到网络设备发送的移动性管理命令，并从该移动性管理命令中获取到参考时间信息。
需要说明的是，移动性管理过程包括以下过程切换过程、辅小区组(Secondary Cell Group，SCG)添加过程和SCG变更过程中任意一种。在移动性管理过程中，网络侧包括源网络节点(Source Node，S-Node)和目标网络节点(Target Node，T-Node)。对于切换过程来说源网络节点为源基站，目标网络节点为目标基站。对于SCG添加过程来说，源网络节点为源主节点(Master Node，MN)，目标网络节点为目标辅节点(Secondary Node，SN)。对于SCG变更过程来说，响应于该SCG变更过程由MN触发，源网络节点为源MN，目标网络节点为目标SN。响应于该SCG变更过程由SN触发，且UE已经配置了双连接(Dual Connectivity，DC)的情况，源网络节点为源SN，目标网络节点为目标SN。
在切换过程中，UE可以变更自身的主小区(Primary Cell，PCell)。实现中源网络节点可以通过携带同步(sync)指示的无线资源控制(Radio Resource Control)重配置(RRCReconfiguration)消息，向UE发送切换命令，其中，该切换命令即为源网络节点向UE发送的移动性管理命令。相应地UE可以接到该切换命令，并从中获取到参考时间信息。
在SCG添加过程，UE可以增加主辅服务小区(Primary Secondary Cell，PSCell)作为UE的服务小区。实现中源网络节点向UE发送用于SCG添加的RRC配置命令，其中，该RRC配置命令即为源网络节点向UE发送的移动性管理命令。相应地UE可以接到该RRC配置命令，并从中获取到参考时间信息。
在SCG变更过程，UE变更自身的PSCell。实现中源网络节点向UE发送用于SCG变更的RRC配置命令，其中，该RRC配置命令即为源网络节点向UE发送的移动性管理命令。相应地UE可以接到该RRC配置命令，并从中获取到参考时间信息。
可选地，参考时间信息至少包括绝对时间信息和绝对时间信息指向的网络计时单元的编号。其中，绝对时间信息可以为a天/b秒/c毫秒/d纳秒等。参考时间信息指向的网络计时单元的编号可以为系统帧编号-1(System Frame Number，SFN-1)，则该绝对时间指向的为SFN-1的无线帧的结束位置。其中，参考时间信息指向的网络计时单元包括以下至少一项：系统帧、子帧(subframe)、时隙(slot)或符号(symbol)中的至少一个。该参考时间信息指向的网络计时单元的编号包括以下至少一项：系统帧编号(System Frame Number，SFN)、子帧编号、时隙编号、符号编号。
可选地，参考时间信息还可以包括：绝对时间信息误差和时间信息类型中的至少一项。其中，绝对时间信息误差可以为误差值为25ns，时间信息类型可包括本地时间/或时间同步网络(Time Synchronization Network，TSN)时间。
S102，使用参考时间信息。
UE可以在移动性管理命令中获取到参考时间信息，并使用参考时间信息，以实现UE侧的时钟与网络侧的时钟的同步。
可选地，UE将服务小区的网络计时单元的编号配置为参考时间信息指向的网络计时单元的编号。本申请实施例中服务小区为移动性管理过程中源网络节点或者目标网络节点中的一个。可选地，服务小区由网络配置或协议约定为源服务小区或目标服务小区。在一些实现中，网络侧可以向UE发送约定指示信息，该约定指示信息用于通知UE源网络节点或者目标网络节点被选取为服务小区。在一些实现中，可以基于协议约定源网络节点或者目标网络节点被选取为服务小区。
方式1、响应于服务小区为源服务小区时，UE在接收到移动性管理命令后，直接使用参考时间信息和源服务小区的SFN。也就是说，UE将源服务小区的网络计时单元的编号配置为该参考时间信息指向的网络计时单元的编号。
以网络计时单元为SFN为例，若移动性管理过程为切换过程，UE将切换前的源PCell的SFN-1配置为参考时间信息指向的SFN-1。若移动性管理过程为SCG添加过程，UE将SCG添加前的源MCG的PCell的SFN-1配置为参考时间信息所指向的SFN-1。若对于移动性管理过程为SCG变更过程，UE将SCG变更前的源SCG的PSCell的SFN-1配置为参考时间信息指向的SFN-1。
方式2、响应于服务小区为目标服务小区，UE接收到移动性管理命令后，在获取目标服务小区的SFN后，使用该参考时间信息和目标服务小区的SFN。也就是说，UE先获取目标服务小区的SFN，并对目标服务小区的SFN进行同步后，UE再将目标服务小区的SFN配置为该参考时间信息指向的SFN。需要说明的是，UE获取目标服务小区的SFN可以在移动性管理过程之前或者之后。在移动性管理过程之前或者之后获取可以由网络指示或协议约定。
以网络计时单元为SFN为例，若移动性管理过程为切换过程，UE将切换后的目标PCell的SFN-1配置为该参考时间信息指向的SFN-1。若移动性管理过程为SCG添加过程，UE将SCG添加后的目标SCG的PSCell的SFN-1配置为参考时间信息指向的SFN-1。若移动性管理过程为SCG变更过程，UE将SCG变更后的目标SCG中的PSCell的SFN-1配置为参考时间信息指向的SFN-1。
下面以网络计时单元为SFN为例，UE获取服务小区的SFN，并使用该参考时间信息和服务小区的SFN实现对UE的时钟同步，其中，UE的时钟同步过程包括：UE包括SFN时钟，该SFN时钟的计时单位是SFN。实现中网络侧通过发送下行同步信号，UE可以基于该下行同步信号检测到服务小区的SFN。进一步地，UE获取服务小区的SFN后，SFN时钟根据SFN进行计时。例如，检测到的服务小区的SFN为1，则SFN时钟的计时即为1。
UE还包括绝对时间时钟，该绝对时间时钟的计时单位为纳秒。参考时间信息中包括参考时间信息指向的网络计时单元的编号，即指示在该编号的结束位置进行计时。例如，参考时间信息指向的网络计时单元的编号为SFN-1，在该情况下，指示UE从SFN-1的结束位置开始使用该参考时间信息中的绝对时间信息进行计时。
可选地，在服务小区为目标服务小区的情况下，UE可以在移动性管理完成之前或之后获取目标服务小区的网络计时单元的编号。在获取到的该目标服务小区的网络计时单元的编号后，UE就可以对目标服务小区使用参考时间信息和目标服务小区的网络计时单元的编号。可选地，在移动性管理之前或之后获取目标服务小区的网络计时单元的编号，可以有网络侧指示或协议约定。也就是说，UE使用移动性管理命令中提供的参考时间信息的时间点可以在移动性管理过程之前或者之后，无需等待与目标小区的移动性管理过程成功完成。以切换过程为例，UE使用切换命令中提供的参考时间信息的时间点可以在移动性管理过程之前或者之后，无需等待UE向目标小区发起的随机接入的完成。
本申请提供的参考时间信息的使用方法，处于移动性管理过程中的UE可以获取参考时间信息，并对服务小区使用参考时间信息。本申请中，可以在移动性管理过程中向UE提供参考时间信息，从而可以解决相关技术中UE只有在变更其服务的小区后，才能从目标小区获取到参考时间信息的问题。UE能够在移动性管理过程中即时获取到参考时间信息，并使用该参考时间信息来实现UE的时钟与网络侧的时钟在时间同步，无需等待移动性管理过程结束后再进行时钟同步，克服了UE在移动性管理过程中出现失步的问题，保证UE的时钟的纠偏的及时性，不再延后纠偏，实时能与网络侧的时钟保持同步。
图2为本申请实施例提供的另一种参考时间信息的使用的流程示意图，由UE执行，UE处于移动性管理过程中。关于移动性管理过程的介绍可参见本申请各实施例中的相关描述，此处不再赘述。
如图2所示，该参考时间信息的使用方法包括如下步骤：
S201，接收源网络节点发送的携带参考时间信息的移动性管理命令。
作为一种可能的实现方式，携带参考时间信息的命令可以为移动性管理命令。在一些实现中，源网络节点可以通过单独的RRC消息向UE发送移动性管理命令，也就是说，通过单独的RRC消息承载移动性性管理命令。
若移动性管理过程为切换过程，源网络节点向UE发送的切换命令即为源网络节点向UE发送的移动性管理命令。相应地UE可以接到该切换命令，并从中获取到参考时间信息。
若移动性管理过程为SCG添加过程，源网络节点向UE发送的用于SCG添加的RRC配置命令即为网络设备向UE发送的移动性管理命令。相应地UE可以接到该RRC配置命令，并从中获取到参考时间信息。
若移动性管理过程为SCG变更过程，源网络节点向UE发送的用于SCG变更的RRC配置命令即为网络设备向UE发送的移动性管理命令。相应地UE可以接到该RRC配置命令，并从中获取到参考时间信息。
在一些实现中，移动性管理命令可以不直接携带参考时间信息，为了使得UE能获取到的参考时间信息，目标网络节点在生成移动性管理命令时可以构建信令容器，源网络节点可以通过信令容器，向UE发送参考时间信息，可选地，源网络节点可以通过RRC消息中的第一信令容器(RRCContainer)向UE发送参考时间信息。可选地，源网络节点可以通过Response消息中的第二信令容器向UE发送参考时间信息。
可选地，源网络节点也向UE发送携带参考时间信息的其他命令，可以与移动性管理命令同步或者在向UE发送移动性管理命令之前，发送给UE。也就是说，UE在接收移动性管理命令之前，先接收源网络节点通过其他命令发送的参考时间信息。
也就是说，可以通过下述两种方式在移动性管理命令中向UE发送参考时间信息。方式1，在无线资源控制(Radio Resource Control，RRC)消息中直接指示参考时间信息。例如，在RRC重配置(RRCReconfiguration)消息中直接携带referenceTimeInfo。方式2，在特定消息中携带信令容器，该信令容器包括了可携带参考时间信息的独立的RRC消息。可选地，可以在RRCReconfiguration消息携带信令容器(RRCContainer)，可以在该RRCContainer中携带下行信息传递RRC(DLInformationTransferRRC)消息，在该DLInformationTransfer RRC消息中可以携带referenceTimeInfo。其中，特定消息可以为RRC消息，也可以为响应(Response)消息。
关于参考时间信息的介绍可参见本申请各实施例中的相关描述，此处不再赘述。
S202，获取参考时间信息，并使用参考时间信息。
步骤S202可以分别采用本申请各实施例中的任一种方式实现，本申请实施例并不对此作出限定，也不再赘述。
本申请实施例中，可以在移动性管理命令中携带参考时间信息，以使UE可以在移动性管理过程中获取到参考时间信息，从而可以解决相关技术中UE只有在变更其服务的小区后，才能从目标小区获取到参考时间信息的问题。UE能够在移动性管理过程中即时获取到参考时间信息，并使用该参考时间信息来实现UE的时钟与网络侧的时钟在时间同步，无需等待移动性管理过程结束后再进行时钟同步，克服了UE在移动性管理过程中出现失步的问题，保证UE的时钟的纠偏的及时性，不再延后纠偏，实时能与网络侧的时钟保持同步。
图3为本申请实施例提供的另一种参考时间信息的使用的流程示意图，由UE执行，UE处于移动性管理过程中。如图3所示，该参考时间信息的使用方法包括如下步骤：
S301，获取在移动性管理命令中接收到的参考时间信息。
步骤S301可以分别采用本申请各实施例中的任一种方式实现，本申请实施例并不对此作出限定，也不再赘述。
S302，响应于满足时延补偿条件，则对参考时间信息进行传输时延补偿。
由于信号发送的传输延时，对于同1个SFN编号的结束位置，UE侧会比网络侧延后一段时间。为了使得UE侧和网络侧和对于参考时间信息理解一致，需要对参考时间信息进行传输时延补偿。在进行传输时延补偿之前，还需要判断UE是否满足时延补偿条件，在满足时延补偿条件时，对参考时间信息进行传输时延补偿。
作为一种可能的实现方式，源网络节点发送的对参考时间信息进行传输延时补偿的指示信息，响应于接收到该指示信息，则确定满足时延补偿条件。例如，可以在切换命令向UE发送参考时间信息时，同时指示UE在使用参考时间信息时需要对该参考时间信息进行传输延时补偿。
作为另一种可能的实现方式，响应于参考时间信息指向的网络计时单元所属小区的上行发送定时值大于或等于定时门限值，则确定满足时延补偿条件。其中，定时门限值为网络配置或协议约定。例如，参考时间信息中参考时间信息指向的网络计时单元所属小区为目标服务小区，UE向目标服务小区发起随机接入，在随机接入成功结束后，UE发现该目标服务小区的上行定时超过定时门限值，则确定需要对参考时间信息进行传输时延补偿。
作为另一种可能的实现方式，响应于参考时间信息指向的网络计时单元所属小区的测量信号强度小于或等于强度门限值，则确定满足时延补偿条件。其中，强度门限值为网络配置或协议约定。例如，参考时间信息指向的网络计时单元所属小区为目标服务小区，UE在目标服务小区发起切换过程，该目标服务小区的参考信号接收强度(Reference Signal Received Power，RSRP)小于或等于强度门限值，则确定满足时延补偿条件。
作为另一种可能的实现方式，响应于参考时间信息指向的网络计时单元所属小区的特定参考信号的路径损耗测量值大于或等于损耗门限值，则确定满足时延补偿条件。例如，参考时间信息指向的网络计时单元所属小区为目标服务小区，UE在目标服务小区发起随机接入过程，对于特定同步信号块(Synchronous Signal Block，SSB)信号的路径损耗(pathloss)测量值大于或等于损耗门限值，则确定满足时延补偿条件。
S303，使用进行传输时延补偿后的参考时间信息。
可选地，若服务小区为源服务小区，UE采用源服务小区的传输延时作为参考时间的传输延时补偿量。
可选地，若服务小区为目标服务小区，UE采用目标服务小区的传输延时作为参考时间的传输延时补偿量。
基于获取到传输延时补偿量，对参考时间信息进行补偿，再对服务小区使用补偿后的参考时间信息。
可选地，UE获取参考时间信息指向的网络计时单元所属小区的上行定时提前量获取传输延时补偿量，基于传输延时补偿量，对参考时间信息进行传输时延补偿。实现中，UE可以获取上行定时提前量(Timing Advance，TA)，其中，传输延时补偿量＝N TA/2。
可选地，基于参考时间信息指向的网络计时单元所属小区的特定参考信号的传输路径损耗，获取传输延时补偿量，并基于该传输延时补偿量，对参考时间信息进行传输时延补偿。预先建立传输时延补偿 量与传输路径损耗之间的映射关系，在获取到特定参考信号的传输路径损耗后，基于该映射关系，可以获取到传输时延补偿量。其中，特征参考信号可以包括SSB和/或信道状态信息参考信号(Channel State Information Reference Signal CSI-RS)中的至少一种。
关于步骤S303中使用参考时间信息的过程，可以分别采用本申请各实施例中的任一种方式实现，本申请实施例并不对此作出限定，也不再赘述。
本申请中，可以在移动性管理命令中携带参考时间信息，以使UE可以在移动性管理过程中获取到参考时间信息，从而可以解决相关技术中UE只有在变更其服务的小区后，才能从目标小区获取到参考时间信息的问题。进一步地在使用参考时间信息时考虑了传输时延的问题，对参考时间信息传输时延补偿，从而能够更加精准地进行时钟同步。
图4为本申请实施例提供的另一种参考时间信息的使用的流程示意图，由UE执行。如图4所示，该参考时间信息的使用方法包括如下步骤：
S401，向源网络节点发送参考时间信息的选取指示信息，以指示从多个候选时间信息中选取至少部分作为参考时间信息。
可选地，源网络节点可以接收到UE发送的参考时间信息的选取指示信息，该选取指示信息用于指示选取UE感兴趣的时间信息。源网络节点在接收到选取指示信息后，可以发送给目标网络节点，目标网络节点可以基于该选取指示信息，将感兴趣的时间信息携带在移动性管理命令中，并发给源网络节点。
例如，目标网络节点可以基于选取指示信息从绝对时间信息误差和时间信息类型中选取至少一个作为感兴趣的时间信息，携带在移动性管理命令中发送给源网络节点。再例如，目标网络节点可以基于选取指示信息从系统帧编号(System Frame Number，SFN)、子帧编号、时隙编号、符号编号选取一个编号作为参考时间信息指向的网络计时单元的编号，以携带在移动性管理命令中发送给源网络节点。也就是说，目标网络节点基于选取指示信息，从多个候选参考时间信息中选取感兴趣的时间信息，来生成参考时间信息，并携带在移动性管理命令中发送给源网络节点。
S402，接收源网络节点发送的移动性管理命令，其中，移动性管理命令中携带参考时间信息。
S403，获取参考时间信息，并使用参考时间信息。
步骤S402～步骤S403可以分别采用本申请各实施例中的任一种方式实现，本申请实施例并不对此作出限定，也不再赘述。
本申请中，可以在移动性管理命令中携带参考时间信息，以使UE可以在移动性管理过程中获取到参考时间信息，从而可以解决相关技术中UE只有在变更其服务的小区后，才能从目标小区获取到参考时间信息的问题。进一步地，移动性管理命令中携带的参考时间信息，可以基于UE的指示进行选取，使得参考时间信息的传输更加灵活。
图5为本申请实施例提供的另一种参考时间信息的使用的流程示意图，由源网络节点执行。如图5所示，该参考时间信息的使用方法包括如下步骤：
S501，向UE发送移动性管理命令，其中移动性管理命令携带参考时间信息，以指示UE使用参考时间信息。
本申请实施例中，UE处于移动性管理过程中，可选地，源网络节点可以通过移动性管理命令向UE发送参考时间信息。
需要说明的是，移动性管理过程包括以下过程切换过程、SCG添加过程和SCG变更过程中任意一种。对于切换过程来说源网络节点为源基站，目标网络节点为目标基站。对于SCG添加过程来说，源网络节点为源MN，目标网络节点为目SN。对于SCG变更过程来说，响应于该SCG变更过程由MN触发，源网络节点为源MN，目标网络节点为目标SN。响应于该SCG变更过程由SN触发，且UE已经配置了DC的情况，源网络节点为源SN，目标网络节点为目标SN。
在切换过程中，源网络节点向UE发送的切换命令，其中切换命令即为源网络节点向UE发送的移动性管理命令。
在SCG添加过程，源网络节点向UE发送用于SCG添加的RRC配置命令，其中，该RRC配置命令即为源网络节点向UE发送的移动性管理命令。
在SCG变更过程，源网络节点向UE发送用于SCG变更的RRC配置命令，其中，该RRC配置命令即为源网络节点向UE发送的移动性管理命令。
移动性管理命令可以分别采用本申请各实施例中的任一种方式实现，本申请实施例并不对此作出限定，也不再赘述。
可选地，参考时间信息至少包括绝对时间信息和绝对时间信息指向的网络计时单元的编号。其中，参考时间信息指向的网络计时单元包括以下至少一项：系统帧、子帧(subframe)、时隙(slot)或符号(symbol)中的至少一个。该参考时间信息指向的网络计时单元的编号包括以下至少一项：系统帧编号(System Frame Number，SFN)、子帧编号、时隙编号、符号编号。
可选地，参考时间信息还可以包括：绝对时间信息误差和时间信息类型中的至少一项。
UE可以在移动性管理过程中即时获取到参考时间信息，并对服务小区使用获取到的参考时间信息。本申请中服务小区为移动性管理过程中源网络节点或者目标网络节点中的一个。在一些实现中，网络侧可以向UE发送约定指示信息，该约定指示信息用于通知UE源网络节点或者目标网络节点被选取为服务小区。在一些实现中，可以基于协议约定源网络节点或者目标网络节点被选取为服务小区。
本申请提供的参考时间信息的使用方法，处于移动性管理过程中的UE可以获取参考时间信息，并对服务小区使用参考时间信息。本申请中，可以在移动性管理过程中向UE提供参考时间信息，从而可以解决相关技术中UE只有在变更其服务的小区后，才能从目标小区获取到参考时间信息的问题。UE能够在移动性管理过程中即时获取到参考时间信息，并使用该参考时间信息来实现UE的时钟与网络侧的时钟在时间同步，无需等待移动性管理过程结束后再进行时钟同步，克服了UE在移动性管理过程中出现失步的问题，保证UE的时钟的纠偏的及时性，不再延后纠偏，实时能与网络侧的时钟保持同步。
图6为本申请实施例提供的另一种参考时间信息的使用的流程示意图，由源网络节点执行。如图6所示，该参考时间信息的使用方法包括如下步骤：
S601，接收目标网络节点发送的参考时间信息。
本申请实施例中，携带参考时间信息的命令可以为移动性管理命令，也可以为信令容器。
作为一种可能的实现方式，源网络节点可以接收目标网络节点发送的第一RRC消息，其中，第一RRC消息包括参考时间信息。
作为另一种可能的实现方式，源网络节点可以接收目标网络节点发送的第二RRC消息，其中，第二RRC消息包括第一信令容器，该第一信令容器中包括参考时间信息。
作为另一种可能的实现方式，源网络节点可以接收目标网络节点通过Xn接口发送的响应(Response)消息，其中，Response消息包括第二信令容器，该第二信令容器中包括参考时间信息。
S602，向UE发送携带参考时间信息的移动性管理命令，以指示UE使用参考时间信息。
源网络节点从目标网络节点接收到携带参考时间信息后，可以通过移动性管理命令将参考时间信息发送给UE。UE接收到该移动性管理命令后，可以获取到参考时间信息，继而对服务小区使用该参考时间信息，以实现UE侧与网络侧的时钟同步。
关于UE获取到参考时间信息，并对服务小区使用参考时间信息的过程，可以分别采用本申请各实施例中的任一种方式实现，本申请实施例并不对此作出限定，也不再赘述。
本申请实施例中，从目标网络节点处获取参考时间信息，基于参考时间信息进行UE时钟同步，能够保证UE侧与目标服务小区的时钟保持同步。
图7为本申请实施例提供的另一种参考时间信息的使用的流程示意图，由源网络节点执行。如图7所示，该参考时间信息的使用方法包括如下步骤：
S701，接收目标网络节点发送的指示信息，其中，指示信息用于指示移动性管理命令中是否携带参考时间信息。
可选地，目标网络节点可以向源网络节点发送一个指示信息，该指示信息可以指示出移动性管理命令中是否提供了参考时间信息。
本申请中，源网络节点接收到该指示信息后，在无需读取信令容器中的移动性管理命令，源网络节点根据该指示信息就可以得知目标网络节点是否给UE发送了参考时间信息。
S702，接收目标网络节点发送的移动性管理命令。
S703，响应于移动性管理命令携带参考时间信息，则向UE发送移动性管理命令。
源网络节点可以根据上述指示信息，确定移动性管理命令是否携带参考时间信息，若移动性管理命令携带参考时间信息，则直接向UE发送该移动性管理命令。
S704，响应于移动性管理命令未携带参考时间信息，则在向UE发送移动性管理命令之前向UE发送参考时间信息。
若移动性管理命令未携带参考时间信息，为了使得UE能获取到参考时间信息，源网络节点可以通过携带参考时间信息的其他命令，向UE发送参考时间信息。携带参考时间信息的其他命令可以与移动性管理命令同步或者在向UE发送移动性管理命令之前发送给UE。也就是说，UE在接收移动性管理命令之前，先接收源网络节点通过其他命令发送的参考时间信息。
本申请中，源网络节点可以接收到指示信息，基于该指示信息即可确定移动性管理命令中是否携带参考时间信息。在未携带参考时间信息时，可以在移动性管理命令之前发送给UE，以保证UE可以在移动性管理过程中进行时钟同步。
图8为本申请实施例提供的另一种参考时间信息的使用的流程示意图，由源网络节点执行。如图8所示，该参考时间信息的使用方法包括如下步骤：
S801，向目标网络节点发送移动性管理请求。
可选地，向UE发送参考时间信息之前，源网络节点向目标网络节点发送移动性管理请求。一些实现中，在切换过程源网络节点向目标网络节点发送切换请求。也就是说在切换过程中切换请求即为移动性管理请求。
一些实现中，在SCG添加过程，源网络节点向目标网络节点发送SCG添加请求。也就是说在SCG添加过程中SCG添加请求即为移动性管理请求。
一些实现中，在SCG变更过程，源网络节点向目标网络节点发送SCG变更请求。也就是说在SCG变更过程中SCG变更请求即为移动性管理请求。
可选地，源网络节点还可以向目标网络节点发送请求信令，通过该请求信息请求目标网络节点给源网络节点提供参考时间信息。在一些实现中，请求信令可以携带在移动性管理请求中，也可以为单独的请求，与移动性管理请求同步，或者在移动性管理请求之前或之后发送给目标网络节点。
S802，接收目标网络节点发送的移动性管理命令，其中，移动性管理命令携带参考时间信息。
本申请实施例中，目标网络节点可以构建携带参考时间信息的移动性管理命令，并将该移动性管理命令发送给源网络节点，相应地源网络节点可以接收到携带参考时间信息的移动性管理命令，从而可以向UE发送该参考时间信息。
可选地，源网络节点可以接收到UE发送的参考时间信息的选取指示信息，该选取指示信息用于指示选取UE感兴趣的时间信息。源网络节点在接收到UE发送的选取指示信息后，可以发送给目标网络节点，目标网络节点可以基于该选取指示信息，将感兴趣的时间信息携带在移动性管理命令中，并发给源网络节点。
S803，向UE发送携带参考时间信息的移动性管理命令，以指示UE使用参考时间信息。
步骤S803可以分别采用本申请各实施例中的任一种方式实现，本申请实施例并不对此作出限定，也不再赘述。本申请中，可以在移动性管理命令中携带参考时间信息，以使UE可以在移动性管理过程中获取到参考时间信息，从而可以解决相关技术中UE只有在变更其服务的小区后，才能从目标小区获取到参考时间信息的问题。进一步地，移动性管理命令中携带的参考时间信息，可以基于UE的指示进行选取，使得参考时间信息的传输更加灵活。
图9为本申请实施例提供的另一种参考时间信息的使用的流程示意图，由目标网络节点执行。如图9所示，该参考时间信息的使用方法包括如下步骤：
S1001，向源网络节点发送参考时间信息，以指示源网络节点通过移动性管理命令向UE发送参考时间信息。
UE处于移动性管理过程中，为了保证UE侧的时钟与网络侧同步，目标网络节点可以向源网络节点 发送参考时间信息。源网络节点在接收到目标网络节点发送的参考时间信息后，可以通过移动性管理命令将该参考时间信息发送给UE。UE接收到该参考时间信息后，可以对服务小区使用该参考时间信息。其中，关于移动性管理过程和参考时间信息的介绍可参见本申请各实施例中的相关描述，此处不再赘述。
作为一种可能的实现方式，目标网络节点向源网络节点发送第一RRC消息，其中，第一RRC消息包括参考时间信息。
作为另一种可能的实现方式，目标网络节点发向源网络节点发送第二RRC消息，其中，第二RRC消息包括第一信令容器，该第一信令容器中包括参考时间信息。
作为另一种可能的实现方式，目标网络节点向源网络节点发送响应(Response)消息，其中，Response RRC消息包括第二信令容器，该第二信令容器中包括参考时间信息。
可选地，源网络节点可以接收到UE发送的参考时间信息的选取指示信息，该选取指示信息用于指示选取UE感兴趣的时间信息。目标网络节点可以从源网络节点接收选取指示信息，并基于该选取指示信息，将感兴趣的时间信息携带在移动性管理命令中，并发给源网络节点。
一些实现中，可以在移动性管理命令中携带参考时间信息，也可以在移动性管理命令中不携带参考时间信息。可选地，目标网络节点可以向源网络节点发送一个指示信息，该指示信息可以指示出移动性管理命令中是否提供了参考时间信息。源网络节点接收到该指示信息后，在无需读取信令容器中的移动性管理命令，源网络节点根据该指示信息就可以得知目标网络节点是否给UE发送了参考时间信息。
图10为本申请实施例提供的另一种参考时间信息的使用的流程示意图，由目标网络节点执行。如图10所示，该参考时间信息的使用方法包括如下步骤：
S1001，接收源网络节点发送的移动性管理请求。
本申请实施例中，当UE处于移动性管理过程中，源网络节点可以向目标网络节点发送移动性管理请求。一些实现中，在切换过程源网络节点向目标网络节点发送切换请求。也就是说在切换过程中切换请求即为移动性管理请求。一些实现中，在SCG添加过程，源网络节点向目标网络节点发送SCG添加请求。也就是说在SCG添加过程中SCG添加请求即为移动性管理请求。一些实现中，在SCG变更过程，源网络节点向目标网络节点发送SCG变更请求。也就是说在SCG变更过程中SCG变更请求即为移动性管理请求。
可选地，目标网络节点还可以接收源网络节点发送的请求信令。其中，该请求信息用于请求目标网络节点给源网络节点提供参考时间信息。
可选地，目标网络节点还可以接收源网络节点发送的参考时间信息的选取指示信息，该选取指示信息用于指示目标网节点选取UE感兴趣的时间信息。
S1002，向源网络节点发送移动性管理命令，以指示源网络节点向处于移动性管理过程的UE发送参考时间信息，其中，移动性管理命令携带参考时间信息。
为了保证UE侧的时钟与网络侧同步，目标网络节点可以向源网络节点发送参考时间信息。源网络节点在接收到目标网络节点发送的参考时间信息后，可以见该参考时间信息发送给UE，UE接收到该参考时间信息后，可以对服务小区使用该参考时间信息。其中，关于移动性管理过程和参考时间信息的介绍可参见本申请各实施例中的相关描述，此处不再赘述。
本申请实施例中，目标网络节点可以向源网络节点发送携带参考时间信息的命令。在一些实现中，携带参考时间信息的命令可以为移动性管理命令，也可以为其他命令。
需要说明的是，目标网络节点向源网络节点发送携带参考时间信息的命令分别采用本申请各实施例中的任一种方式实现，本申请实施例并不对此作出限定，也不再赘述。
图11为本申请实施例提供的另一种参考时间信息的使用的流程示意图。如图11所示，该参考时间信息的使用方法包括如下步骤：
S1101，源网络节点向目标网络节点发送移动性管理请求。
在不同的移动性管理过程中，源网络节点向目标网络节点发送的移动性管理请求也不相同。可选地，切换过程的切换请求即为移动性管理请求；在SCG添加过程中SCG添加请求即为移动性管理请求；在SCG变更过程中SCG变更请求即为移动性管理请求。可选地，源网络节点可以接收到UE发送的参考时 间信息的选取指示信息，该选取指示信息用于指示目标网络节点选取UE感兴趣的时间信息，即指示目标网络节点从多个候选时间信息中选取至少部分作为参考时间信息。
S1102，目标网节点向源网络节点发送参考时间信息。
本申请实施例中，目标网络节点可以向源网络节点发送携带参考时间信息的命令。在一些实现中，携带参考时间信息的命令可以为移动性管理命令，也可以为其他命令。
关于参考时间信息的介绍可参见本申请各实施例中的相关描述，此处不再赘述。
S1103，源网络节点向UE发送参考时间信息。
本申请实施例中，目标网络节点可以向源网络节点发送携带参考时间信息的命令。在一些实现中，携带参考时间信息的命令可以为移动性管理命令，也可以为其他命令。具体过程可参见本申请各实施例的相关描述，此处不再赘述。
一些实现中，可以在移动性管理命令中携带参考时间信息，也可以在移动性管理命令中不携带参考时间信息。可选地，目标网络节点可以向源网络节点发送一个指示信息，该指示信息可以指示出移动性管理命令中是否提供了参考时间信息。源网络节点接收到该指示信息后，在无需读取信令容器中的移动性管理命令，源网络节点根据该指示信息就可以得知目标网络节点是否给UE发送了参考时间信息。
S1104，UE使用参考时间信息。
关于步骤S1104可以分别采用本申请各实施例中的任一种方式实现，本申请实施例并不对此作出限定，也不再赘述。
本申请中，处于移动性管理过程中的UE可以获取参考时间信息，并对服务小区使用参考时间信息。本申请中，可以在移动性管理过程中向UE提供参考时间信息，从而可以解决相关技术中UE只有在变更其服务的小区后，才能从目标小区获取到参考时间信息的问题。UE能够在移动性管理过程中即时获取到参考时间信息，并使用该参考时间信息来实现UE的时钟与网络侧的时钟在时间同步，无需等待移动性管理过程结束后再进行时钟同步，克服了UE在移动性管理过程中出现失步的问题，保证UE的时钟的纠偏的及时性，不再延后纠偏，实时能与网络侧的时钟保持同步。
与上述几种实施例提供的参考时间信息的使用方法相对应，本申请还提供一种参考时间信息的使用装置，由于本申请实施例提供的参考时间信息的使用装置与上述图1-图12实施例提供的参考时间信息的使用方法相对应，因此参考时间信息的使用方法的实施方式也适用于本实施例提供的参考时间信息的使用装置，在本实施例中不再详细描述。
图12为本申请实施例提出的一种参考时间信息的使用装置的结构示意图。该参考时间信息的使用装置适用于UE，UE处于移动性管理过程中。如图12所示，该参考时间信息的使用装置1200包括：获取模块121。
其中，获取模块121，被配置为获取在移动性管理命令中接收到的参考时间信息，并使用所述参考时间信息。
可选地，获取模块121，包括：配置单元1211。
配置单元1211被配置将服务小区的网络计时单元的编号配置为所述参考时间信息指向的网络计时单元的编号。
可选地，所述服务小区由网络配置或协议为源服务小区或目标服务小区。
可选地，配置单元1211，进一步被配置为当所述服务小区为源服务小区时，接收到所述移动性管理命令后直接使用所述参考时间信息和所述源服务小区的SFN。
可选地，配置单元1211，进一步被配置为当所述服务小区为目标服务小区时，接收到所述移动性管理命令后，在获取所述目标服务小区的SFN后，使用所述参考时间信息和所述目标服务小区的SFN。
可选地，配置单元1211，进一步被配置为所述的获取所述目标服务小区的SFN，在移动性管理成功之前或之后。
可选地，获取模块121，还包括：接收单元1212。
可选地，接收单元1212，进一步被配置为接收源网络节点发送的携带所述参考时间信息的移动性管理命令。
可选地，该参考时间信息的使用装置1200包括：时延补偿模块122。
可选地，时延补偿模块122被配置为在对服务小区使用所述参考时间信息之前，响应于满足时延补偿条件，则对所述参考时间信息进行传输时延补偿。
可选地，所述时延补偿条件包括以下至少一个：
接收所述源网络节点发送的对所述参考时间信息进行传输延时补偿的指示信息；
所述参考时间信息指向的网络计时单元所属小区的上行发送定时值大于或等于定时门限值；
所述参考时间信息指向的网络计时单元所属小区的测量信号强度小于或等于强度门限值；
所述参考时间信息指向的网络计时单元所属小区的特定参考信号的路径损耗测量值大于或等于损耗门限值。
可选地，时延补偿模块132进一步被配置为基于所述参考时间信息指向的网络计时单元所属小区的上行定时提前量获取传输延时补偿量，基于所述传输延时补偿量，对所述参考时间信息进行传输时延补偿；或者，基于所述参考时间信息指向的网络计时单元所属小区的特定参考信号的传输路径损耗，获取所述传输延时补偿量，并基于所述传输延时补偿量，对所述参考时间信息进行传输时延补偿。
可选地，所述参考时间信息包括：绝对时间信息、所述绝对时间信息所对应的网络计时单元的编号。
可选地，所述参考时间信息还包括：绝对时间信息误差和/或时间信息类型。
可选地，所述网络计时单元的编号包括以下至少一项：
系统帧编号SFN；
子帧编号；
时隙编号；
符号编号。
可选地，该参考时间信息的使用装置1200包括：发送模块123。
发送模块123，被配置为在所述获取参考时间信息之前，向所述源网络节点发送所述参考时间信息的选取指示信息，以指示从多个候选时间信息中选取至少部分作为所述参考时间信息。
本申请中，处于移动性管理过程中的UE可以获取参考时间信息，并对服务小区使用参考时间信息。本申请中，可以在移动性管理过程中向UE提供参考时间信息，从而可以解决相关技术中UE只有在变更其服务的小区后，才能从目标小区获取到参考时间信息的问题。UE能够在移动性管理过程中即时获取到参考时间信息，并使用该参考时间信息来实现UE的时钟与网络侧的时钟在时间同步，无需等待移动性管理过程结束后再进行时钟同步，克服了UE在移动性管理过程中出现失步的问题，保证UE的时钟的纠偏的及时性，不再延后纠偏，实时能与网络侧的时钟保持同步。
图13为本申请实施例提出的一种参考时间信息的使用装置的结构示意图。该参考时间信息的使用装置适用于源网络节点。如图13所示，该参考时间信息的使用装置1300包括：发送模块131。
发送模块131，被配置为向UE发送移动性管理命令，其中所述移动性管理命令携带参考时间信息，以指示所述UE使用所述参考时间信息。
可选地，该参考时间信息的使用装置1300包括：接收模块132。
接收模块132，被配置为在向UE发送参考时间信息之前，接收目标网络节点发送的所述参考时间信息。
可选地，发送模块131，进一步被配置为接收目标网络节点发送的所述参考时间信息之前，向所述目标网络节点发送请求信令，其中所述请求信令用于请求所述目标网络节点提供所述参考时间信息。
可选地，接收模块132，进一步被配置为接收所述目标网络节点发送的第一RRC消息，其中，所述第一RRC消息包括所述参考时间信息；或者，
接收所述目标网络节点发送的第二RRC消息，其中，所述第二RRC消息包括第一信令容器，所述第一信令容器中包括所述参考时间信息；或者，
接收所述目标网络节点发送的响应消息，其中，所述响应消息包括第二信令容器，所述第二信令容器中包括所述参考时间信息。
可选地，发送模块131，进一步被配置为向所述目标网络节点发送移动性管理请求。
接收模块132，进一步被配置为接收所述目标网络节点发送的所述移动性管理命令。
可选地，接收模块132，进一步被配置为接收所述目标网络节点发送的指示信息，其中，所述指示信息用于指示所述移动性管理命令中是否携带所述参考时间信息。
可选地，接收模块132，进一步被配置为接收目标网络节点发送所述参考时间信息之前，接收所述UE发送的所述参考时间信息的选取指示信息。
发送模块131，进一步被配置为向所述目标网络节点发送所述参考时间信息的选取指示信息，以指示所述目标网络节点从多个候选时间信息中选取至少部分作为所述参考时间信息。
本申请中，处于移动性管理过程中的UE可以获取参考时间信息，并对服务小区使用参考时间信息。本申请中，可以在移动性管理过程中向UE提供参考时间信息，从而可以解决相关技术中UE只有在变更其服务的小区后，才能从目标小区获取到参考时间信息的问题。UE能够在移动性管理过程中即时获取到参考时间信息，并使用该参考时间信息来实现UE的时钟与网络侧的时钟在时间同步，无需等待移动性管理过程结束后再进行时钟同步，克服了UE在移动性管理过程中出现失步的问题，保证UE的时钟的纠偏的及时性，不再延后纠偏，实时能与网络侧的时钟保持同步。
图14为本申请实施例提出的一种参考时间信息的使用装置的结构示意图。该参考时间信息的使用装置适用于目标网络节点。如图14所示，该参考时间信息的使用装置1400包括：发送模块141。
发送模块141，被配置为向源网络节点发送参考时间信息，以指示所述源网络节点通过移动性管理命令向UE发送所述参考时间信息。
可选地，该参考时间信息的使用装置1400包括：接收模块142。
接收模块142，被配置为向所述源网络节点发送参考时间信息之前，接收所述源网络节点发送的请求信令，其中所述请求信令用于请求所述目标网络节点提供所述参考时间信息。
可选地，接收模块142，进一步被配置为向所述源网络节点发送第一RRC消息，其中，所述第一RRC消息包括所述参考时间信息；或者，
向所述源网络节点发送第二RRC消息，其中，所述第二RRC消息包括第一信令容器，所述第一信令容器中包括所述参考时间信息；或者，
向所述源网络节点发送响应消息，其中，所述响应消息包括第二信令容器，所述第二信令容器中包括所述参考时间信息。
可选地，接收模块142，进一步被配置为接收所述源网络节点发送的移动性管理请求。
可选地，发送模块141，进一步被配置为向所述源网络节点发送所述移动性管理命令。
可选地，发送模块141，进一步被配置为向所述源网络节点发送指示信息，其中，所述指示信息用于指示所述移动性管理命令中是否携带所述参考时间信息。
可选地，接收模块142进一步被配置为为所述向所述源网络节点发送所述参考时间信息之前，接收所述源网络节点发送的所述参考时间信息的选取指示信息，从多个候选时间信息中选取至少部分作为所述参考时间信息。
本申请中，处于移动性管理过程中的UE可以获取参考时间信息，并对服务小区使用参考时间信息。本申请中，可以在移动性管理过程中向UE提供参考时间信息，从而可以解决相关技术中UE只有在变更其服务的小区后，才能从目标小区获取到参考时间信息的问题。UE能够在移动性管理过程中即时获取到参考时间信息，并使用该参考时间信息来实现UE的时钟与网络侧的时钟在时间同步，无需等待移动性管理过程结束后再进行时钟同步，克服了UE在移动性管理过程中出现失步的问题，保证UE的时钟的纠偏的及时性，不再延后纠偏，实时能与网络侧的时钟保持同步。
根据本申请的实施例，本申请还提供了一种通信设备和一种可读存储介质。
如图15所示，该通信设备包括：一个或多个处理器1610、存储器1620，以及用于连接各部件的接口，包括高速接口和低速接口。各个部件利用不同的总线互相连接，并且可以被安装在公共主板上或者根据需要以其它方式安装。处理器可以对在通信设备内执行的指令进行处理，包括存储在存储器中或者存储器上以在外部输入/输出装置(诸如，耦合至接口的显示设备)上显示GU I的图形信息的指令。在其它实施方式中，若需要，可以将多个处理器和/或多条总线与多个存储器和多个存储器一起使用。同 样，可以连接多个通信设备，各个设备提供部分必要的操作(例如，作为服务器阵列、一组刀片式服务器、或者多处理器系统)。图15中以一个处理器1610为例。
存储器1620即为本申请所提供的非瞬时计算机可读存储介质。其中，所述存储器存储有可由至少一个处理器执行的指令，以使所述至少一个处理器执行本申请所提供的参考时间信息的使用方法。本申请的非瞬时计算机可读存储介质存储计算机指令，该计算机指令用于使计算机执行本申请所提供的参考时间信息的使用方法。
存储器1620作为一种非瞬时计算机可读存储介质，可用于存储非瞬时软件程序、非瞬时计算机可执行程序以及模块，如本申请实施例中的参考时间信息的使用方法对应的程序指令/模块。处理器1610通过运行存储在存储器1620中的非瞬时软件程序、指令以及模块，从而执行服务器的各种功能应用以及数据处理，即实现上述方法实施例中的参考时间信息的使用方法。
存储器1620可以包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需要的应用程序；存储数据区可存储根据定位通信设备的使用所创建的数据等。此外，存储器1620可以包括高速随机存取存储器，还可以包括非瞬时存储器，例如至少一个磁盘存储器件、闪存器件、或其他非瞬时固态存储器件。可选地，存储器1620可选包括相对于处理器1610远程设置的存储器，这些远程存储器可以通过网络连接至定位通信设备。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
通信设备还可以包括：输入装置1630和输出装置1640。处理器1610、存储器1620、输入装置1630和输出装置1640可以通过总线或者其他方式连接，图15中以通过总线连接为例。
输入装置1630可接收输入的数字或字符信息，以及产生与定位通信设备的用户设置以及功能控制有关的键信号输入，例如触摸屏、小键盘、鼠标、轨迹板、触摸板、指示杆、一个或者多个鼠标按钮、轨迹球、操纵杆等输入装置。输出装置1640可以包括显示设备、辅助照明装置(例如，LED)和触觉反馈装置(例如，振动电机)等。该显示设备可以包括但不限于，液晶显示器(LCD)、发光二极管(LED)显示器和等离子体显示器。在一些实施方式中，显示设备可以是触摸屏。
此处描述的系统和技术的各种实施方式可以在数字电子电路系统、集成电路系统、专用ASIC(专用集成电路)、计算机硬件、固件、软件、和/或它们的组合中实现。这些各种实施方式可以包括：实施在一个或者多个计算机程序中，该一个或者多个计算机程序可在包括至少一个可编程处理器的可编程系统上执行和/或解释，该可编程处理器可以是专用或者通用可编程处理器，可以从存储系统、至少一个输入装置、和至少一个输出装置接收数据和指令，并且将数据和指令传输至该存储系统、该至少一个输入装置、和该至少一个输出装置。
这些计算程序(也称作程序、软件、软件应用、或者代码)包括可编程处理器的机器指令，并且可以利用高级过程和/或面向对象的编程语言、和/或汇编/机器语言来实施这些计算程序。如本文使用的，术语“机器可读介质”和“计算机可读介质”指的是用于将机器指令和/或数据提供给可编程处理器的任何计算机程序产品、设备、和/或装置(例如，磁盘、光盘、存储器、可编程逻辑装置(PLD))，包括，接收作为机器可读信号的机器指令的机器可读介质。术语“机器可读信号”指的是用于将机器指令和/或数据提供给可编程处理器的任何信号。
为了提供与用户的交互，可以在计算机上实施此处描述的系统和技术，该计算机具有：用于向用户显示信息的显示装置(例如，CRT(阴极射线管)或者LCD(液晶显示器)监视器)；以及键盘和指向装置(例如，鼠标或者轨迹球)，用户可以通过该键盘和该指向装置来将输入提供给计算机。其它种类的装置还可以用于提供与用户的交互；例如，提供给用户的反馈可以是任何形式的传感反馈(例如，视觉反馈、听觉反馈、或者触觉反馈)；并且可以用任何形式(包括声输入、语音输入或者、触觉输入)来接收来自用户的输入。
可以将此处描述的系统和技术实施在包括后台部件的计算系统(例如，作为数据服务器)、或者包括中间件部件的计算系统(例如，应用服务器)、或者包括前端部件的计算系统(例如，具有图形用户界面或者网络浏览器的用户计算机，用户可以通过该图形用户界面或者该网络浏览器来与此处描述的系统和技术的实施方式交互)、或者包括这种后台部件、中间件部件、或者前端部件的任何组合的计算系 统中。可以通过任何形式或者介质的数字数据通信(例如，通信网络)来将系统的部件相互连接。通信网络的示例包括：局域网(LAN)、广域网(WAN)和互联网。
计算机系统可以包括客户端和服务器。客户端和服务器一般远离彼此并且通常通过通信网络进行交互。通过在相应的计算机上运行并且彼此具有客户端-服务器关系的计算机程序来产生客户端和服务器的关系。
本技术领域的普通技术人员可以理解实现上述实施例方法携带的全部或部分步骤是可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，该程序在执行时，包括方法实施例的步骤之一或其组合。
此外，在本发明各个实施例中的各功能单元可以集成在一个处理模块中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。
上述提到的存储介质可以是只读存储器，磁盘或光盘等。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (32)

  1. 一种参考时间信息的使用方法，其特征在于，适用于用户设备UE，所述方法包括：
    获取在移动性管理命令中接收到的参考时间信息，并使用所述参考时间信息。
  2. 根据权利要求1所述的参考时间信息的使用方法，其特征在于，所述使用所述参考时间信息，包括：
    将服务小区的网络计时单元的编号配置为所述参考时间信息指向的网络计时单元的编号。
  3. 根据权利要求2所述的参考时间信息的使用方法，其特征在于，所述服务小区由网络配置或协议为源服务小区或目标服务小区。
  4. 根据权利要求3所述的参考时间信息的使用方法，其特征在于，还包括：
    当所述服务小区为源服务小区时，接收到所述移动性管理命令后直接使用所述参考时间信息和所述源服务小区的SFN。
  5. 根据权利要求3所述的参考时间信息的使用方法，其特征在于，还包括：
    当所述服务小区为目标服务小区时，接收到所述移动性管理命令后，在获取到所述目标服务小区的SFN后，使用所述参考时间信息和所述目标服务小区的SFN。
  6. 根据权利要求5所述的参考时间信息的使用方法，其特征在于，所述在获取到所述目标服务小区的SFN后，还包括：
    所述的获取到所述目标服务小区的SFN，在移动性管理成功之前或之后。
  7. 根据权利要求1所述的参考时间信息的使用方法，其特征在于，所述获取在移动性管理命令中接收到的参考时间信息，包括：
    接收源网络节点发送的携带所述参考时间信息的所述移动性管理命令。
  8. 根据权利要求1所述的参考时间信息的使用方法，其特征在于，所述使用所述参考时间信息之前，还包括：
    响应于满足时延补偿条件，对所述参考时间信息进行传输时延补偿。
  9. 根据权利要求8所述的参考时间信息的使用方法，其特征在于，所述时延补偿条件包括以下至少一个：
    接收所述源网络节点发送的对所述参考时间信息进行传输延时补偿的指示信息；
    所述参考时间信息指向的网络计时单元所属小区的上行发送定时值大于或等于定时门限值；
    所述参考时间信息指向的网络计时单元所属小区的测量信号强度小于或等于强度门限值；
    所述参考时间信息指向的网络计时单元所属小区的特定参考信号的路径损耗测量值大于或等于损耗门限值。
  10. 根据权利要求8所述的参考时间信息的使用方法，其特征在于，所述对所述参考时间信息进行传输时延补偿，包括：
    基于所述参考时间信息指向的网络计时单元所属小区的上行定时提前量获取传输延时补偿量，基于所述传输延时补偿量，对所述参考时间信息进行传输时延补偿；或者，
    基于所述参考时间信息指向的网络计时单元所属小区的特定参考信号的传输路径损耗，获取所述传 输延时补偿量，并基于所述传输延时补偿量，对所述参考时间信息进行传输时延补偿。
  11. 根据权利要求1-10任一项所述的参考时间信息的使用方法，其特征在于，所述参考时间信息包括：
    绝对时间信息；
    所述绝对时间信息所指向的网络计时单元的编号。
  12. 根据权利要求11所述的参考时间信息的使用方法，其特征在于，所述参考时间信息还包括以下至少一项：
    绝对时间信息误差；
    时间信息类型。
  13. 根据权利要求11所述的参考时间信息的使用方法，其特征在于，所述网络计时单元的编号包括以下至少一项：
    系统帧编号SFN；
    子帧编号；
    时隙编号；
    符号编号。
  14. 根据权利要求1-10任一项所述的参考时间信息的使用方法，其特征在于，所述获取参考时间信息之前，还包括：
    向所述源网络节点发送所述参考时间信息的选取指示信息，以指示从多个候选时间信息中选取至少部分作为所述参考时间信息。
  15. 一种参考时间信息的使用方法，其特征在于，适用于源网络节点，所述方法包括：
    向UE发送移动性管理命令，其中所述移动性管理命令携带参考时间信息，以指示所述UE使用所述参考时间信息。
  16. 根据权利要求15所述的参考时间信息的使用方法，其特征在于，所述向UE发送移动性管理命令之前，还包括：
    接收目标网络节点发送的所述参考时间信息。
  17. 根据权利要求16所述的参考时间信息的使用方法，其特征在于,所述接收目标网络节点发送的所述参考时间信息之前，还包括：
    向所述目标网络节点发送请求信令，其中所述请求信令用于请求所述目标网络节点提供所述参考时间信息。
  18. 根据权利要求16所述的参考时间信息的使用方法，其特征在于，所述接收目标网络节点发送的所述参考时间信息，包括：
    接收所述目标网络节点发送的第一RRC消息，其中，所述第一RRC消息包括所述携带所述参考时间信息；或者，
    接收所述目标网络节点发送的第二RRC消息，其中，所述第二RRC消息包括第一信令容器，所述第一信令容器中包括所述携带所述参考时间信息；或者，
    接收所述目标网络节点发送的响应消息，其中，所述响应消息包括第二信令容器，所述第二信令容器中包括所述携带所述参考时间信息。
  19. 根据权利要求16-18任一项所述的参考时间信息的使用方法，其特征在于，所述接收目标网络节点发送的所述参考时间信息，包括：
    向所述目标网络节点发送移动性管理请求；
    接收所述目标网络节点发送的所述移动性管理命令。
  20. 根据权利要求19所述的参考时间信息的使用方法，其特征在于，还包括：
    接收所述目标网络节点发送的指示信息，其中，所述指示信息用于指示所述移动性管理命令中是否携带所述参考时间信息。
  21. 根据权利要求16所述的参考时间信息的使用方法，其特征在于，所述接收目标网络节点发送的所述参考时间信息之前，还包括：
    接收所述UE发送的所述参考时间信息的选取指示信息；
    向所述目标网络节点发送所述参考时间信息的选取指示信息，以指示所述目标网络节点从多个候选时间信息中选取至少部分作为所述参考时间信息。
  22. 一种参考时间信息的使用方法，其特征在于，适用于目标网络节点，所述方法包括：
    向源网络节点发送参考时间信息，以指示所述源网络节点通过移动性管理命令向UE发送所述参考时间信息。
  23. 根据权利要求22所述的参考时间信息的使用方法，其特征在于，所述向源网络节点发送参考时间信息之前，还包括：
    接收所述源网络节点发送的请求信令，其中所述请求信令用于请求所述目标网络节点提供所述参考时间信息。
  24. 根据权利要求23所述的参考时间信息的使用方法，其特征在于，所述向源网络节点发送参考时间信息，包括：
    向所述源网络节点发送第一RRC消息，其中，所述第一RRC消息包括所述携带所述参考时间信息；或者，
    向所述源网络节点发送第二RRC消息，其中，所述第二RRC消息包括第一信令容器，所述第一信令容器中包括所述携带所述参考时间信息；或者，
    向所述源网络节点发送响应消息，其中，所述响应消息包括第二信令容器，所述第二信令容器中包括所述携带所述参考时间信息。
  25. 根据权利要求22-24任一项所述的参考时间信息的使用方法，其特征在于，所述向所述源网络节点发送所述参考时间信息，包括：
    接收所述源网络节点发送的移动性管理请求；
    向所述源网络节点发送所述移动性管理命令。
  26. 根据权利要求25所述的参考时间信息的使用方法，其特征在于，还包括：
    向所述源网络节点发送指示信息，其中，所述指示信息用于指示所述移动性管理命令中是否携带所述参考时间信息。
  27. 根据权利要求22所述的参考时间信息的使用方法，其特征在于，所述向所述源网络节点发送 所述参考时间信息之前，还包括：
    接收所述源网络节点发送的所述参考时间信息的选取指示信息；
    从多个候选时间信息中选取至少部分作为所述参考时间信息。
  28. 一种参考时间信息的使用装置，其特征在于，适用于UE，所述装置包括：
    获取模块，被配置为获取在移动性管理命令中接收到的参考时间信息，并使用所述参考时间信息。
  29. 一种参考时间信息的使用装置，其特征在于，适用于源网络节点，所述装置包括：
    发送模块，被配置为向UE发送移动性管理命令，其中所述移动性管理命令携带参考时间信息，以指示所述UE使用所述参考时间信息。
  30. 一种参考时间信息的使用装置，其特征在于，适用于目标网络节点，所述装置包括：
    发送模块，被配置为向源网络节点发送参考时间信息，以指示所述源网络节点通过移动性管理命令UE发送所述参考时间信息。
  31. 一种通信设备，其特征在于，包括：
    至少一个处理器；以及
    与所述至少一个处理器通信连接的存储器；其中，
    所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行权利要求1至27任一项所述的方法。
  32. 一种计算机存储介质，其特征在于，所述计算机存储介质存储有计算机可执行指令，所述计算机可执行指令被处理器执行后，能够实现权利要求1至27任一项所述的方法。
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ZTE CORPORATION, SANECHIPS, CHINA SOUTHERN POWER GRID CO., LTD: "Remaining issues for accurate reference timing delivery in TSC", 3GPP DRAFT; R2-1914725, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), 8 November 2019 (2019-11-08), XP051816723 *
ZTE CORPORATION, SANECHIPS, CHINA SOUTHERN POWER GRID CO., LTD: "Signalling aspects for accurate reference timing delivery in TSC", 3GPP DRAFT; R2-1912897 SIGNALLING ASPECTS FOR ACCURATE REFERENCE TIMING DELIVERY IN TSC, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), 4 October 2019 (2019-10-04), XP051790931 *

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