WO2022041131A1 - 传输时延的补偿方法、装置、设备及存储介质 - Google Patents

传输时延的补偿方法、装置、设备及存储介质 Download PDF

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Publication number
WO2022041131A1
WO2022041131A1 PCT/CN2020/112158 CN2020112158W WO2022041131A1 WO 2022041131 A1 WO2022041131 A1 WO 2022041131A1 CN 2020112158 W CN2020112158 W CN 2020112158W WO 2022041131 A1 WO2022041131 A1 WO 2022041131A1
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Prior art keywords
reference signal
time
network device
information
terminal device
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Ceased
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PCT/CN2020/112158
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English (en)
French (fr)
Inventor
付喆
卢前溪
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to ES20950801T priority Critical patent/ES3001153T3/es
Priority to CN202080104823.2A priority patent/CN116250265A/zh
Priority to CN202310910017.XA priority patent/CN116887392B/zh
Priority to EP20950801.9A priority patent/EP4199568B1/en
Priority to PCT/CN2020/112158 priority patent/WO2022041131A1/zh
Publication of WO2022041131A1 publication Critical patent/WO2022041131A1/zh
Priority to US18/145,836 priority patent/US12477378B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
    • H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0602—Systems characterised by the synchronising information used
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0005—Synchronisation arrangements synchronizing of arrival of multiple uplinks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/002—Mutual synchronization
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal

Definitions

  • the embodiments of the present application relate to the field of communications technologies, and in particular, to a method, apparatus, device, and storage medium for compensating for transmission delay.
  • 5G 5th-Generation, fifth generation mobile communication IIoT (Industrial Interest of Things, Industrial Internet) needs to support industrial automation (Factory automation), transmission automation (Transport Industry), smart power (Electrical Power Distribution) and other services in 5G system transmission.
  • TSN Time Sensitive Network
  • TSC Time Sensitive Communication, time-sensitive transmission
  • Embodiments of the present application provide a method, apparatus, device, and storage medium for compensating for transmission delay.
  • the technical solution is as follows:
  • an embodiment of the present application provides a method for compensating for transmission delay, which is applied to a terminal device, and the method includes:
  • the signal configuration information is used to configure a reference signal used for transmission delay compensation between the terminal device and the network device;
  • the reference signals include: uplink reference signals and/or downlink reference signals.
  • an embodiment of the present application provides a method for compensating transmission delay, which is applied to a network device, and the method includes:
  • the reference signals include: uplink reference signals and/or downlink reference signals.
  • an embodiment of the present application provides an apparatus for compensating transmission delay, which is set in a terminal device, and the apparatus includes:
  • a configuration information receiving module configured to receive signal configuration information from a network device, where the signal configuration information is used to configure a reference signal used for transmission delay compensation between the terminal device and the network device;
  • the reference signals include: uplink reference signals and/or downlink reference signals.
  • an embodiment of the present application provides an apparatus for compensating transmission delay, which is set in a network device, and the apparatus includes:
  • a configuration information sending module configured to send signal configuration information to a terminal device, where the signal configuration information is used to configure a reference signal used for transmission delay compensation between the terminal device and the network device;
  • the reference signals include: uplink reference signals and/or downlink reference signals.
  • an embodiment of the present application provides a terminal device, where the terminal device includes: a processor, and a transceiver connected to the processor; wherein:
  • the transceiver configured to receive signal configuration information from a network device, where the signal configuration information is used to configure a reference signal used for transmission delay compensation between the terminal device and the network device;
  • the reference signals include: uplink reference signals and/or downlink reference signals.
  • an embodiment of the present application provides a network device, where the network device includes: a processor, and a transceiver connected to the processor; wherein:
  • the transceiver configured to send signal configuration information to a terminal device, where the signal configuration information is used to configure a reference signal used for transmission delay compensation between the terminal device and the network device;
  • the reference signals include: uplink reference signals and/or downlink reference signals.
  • an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used to be executed by a processor of a terminal device, so as to realize the above-mentioned transmission on the terminal device side Delay compensation method.
  • an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used to be executed by a processor of a network device, so as to realize the transmission on the network device side as described above. Delay compensation method.
  • an embodiment of the present application provides a chip, where the chip includes a programmable logic circuit and/or program instructions, and when the chip runs on a terminal device, it is used to implement the above-mentioned transmission delay on the terminal device side compensation method.
  • an embodiment of the present application provides a chip, where the chip includes a programmable logic circuit and/or program instructions, and when the chip runs on a network device, it is used to implement the above-mentioned network device-side transmission delay compensation method.
  • an embodiment of the present application provides a computer program product, which, when the computer program product runs on a terminal device, enables the computer to execute the above-mentioned method for compensating transmission delay on the side of the terminal device.
  • an embodiment of the present application provides a computer program product, which, when the computer program product runs on a network device, enables a computer to execute the above-mentioned method for compensating for transmission delay on the network device side.
  • the reference signal used for transmission delay compensation is configured for the terminal device through the network device, so that the terminal device and the network device can determine the signal transmission delay based on the transmission and reception of the reference signal, or determine the transmission delay compensated for the transmission delay compensation, so as to further Compensation for the transmission delay of the signal transmitted between the terminal device and the network device is realized, a compensation method for the transmission delay is provided, and the precise synchronization between the terminal device and the network device is ensured.
  • the technical solutions provided in the embodiments of the present application can be applied to the 5G system. Since the transmission delay between the terminal equipment and the network equipment in the 5G system is compensated, it is ensured that the 5G system has higher synchronization accuracy, so that the The 5G system meets the synchronization accuracy requirements for TSN services.
  • FIG. 1 is a schematic diagram of a system architecture provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a TSN communication system provided by an embodiment of the present application.
  • FIG. 3 is a flowchart of an RX-TX-based positioning method provided by an embodiment of the present application.
  • FIG. 5 is a flowchart of a process for determining transmission delay provided by an embodiment of the present application.
  • FIG. 6 is a flowchart of a compensation process for transmission delay provided by an embodiment of the present application.
  • FIG. 7 is a flowchart of a method for compensating transmission delay provided by another embodiment of the present application.
  • FIG. 8 is a flowchart of a method for compensating transmission delay provided by another embodiment of the present application.
  • FIG. 9 is a block diagram of an apparatus for compensating transmission delay provided by an embodiment of the present application.
  • FIG. 10 is a block diagram of an apparatus for compensating transmission delay provided by another embodiment of the present application.
  • FIG. 11 is a block diagram of an apparatus for compensating transmission delay provided by another embodiment of the present application.
  • FIG. 12 is a block diagram of an apparatus for compensating transmission delay provided by another embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • the network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application.
  • the evolution of new business scenarios and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • FIG. 1 shows a schematic diagram of a system architecture provided by an embodiment of the present application.
  • the system architecture may include: a terminal device 10 and a network device 20 .
  • the number of terminal devices 10 is usually multiple, and one or more terminal devices 10 may be distributed in a cell managed by each network device 20 .
  • the terminal device 10 may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems with wireless communication functions, as well as various forms of user equipment (UE), mobile stations (Mobile Station, MS) and so on.
  • UE user equipment
  • MS Mobile Station
  • the network device 20 is a device deployed in an access network to provide a wireless communication function for the terminal device 10 .
  • the network equipment 20 may include various forms of macro base stations, micro base stations, relay stations, access points, and the like.
  • the names of devices with network device functions may be different, for example, in a 5G NR (New Radio, new air interface) system, it is called gNodeB or gNB.
  • gNodeB New Radio, new air interface
  • network equipment may change.
  • the above-mentioned apparatuses for providing a wireless communication function for the terminal device 10 are collectively referred to as network devices.
  • the "5G NR system" in the embodiments of this application may also be referred to as a 5G system or an NR system, but those skilled in the art can understand its meaning.
  • the technical solutions described in the embodiments of this application may be applicable to the 5G NR system, and may also be applicable to the subsequent evolution system of the 5G NR system.
  • the 5G system can be integrated into TSN as an Ethernet Bridge of TSN, and the integrated system can be called a TSN communication system.
  • FIG. 2 shows a schematic diagram of a TSN communication system provided by an embodiment of the present application.
  • the TSN communication system may include TSN and 5G systems.
  • the 5G system includes terminal equipment and various functional entities.
  • the 5G system includes the following functional entities:
  • RAN Radio Access Network, Radio Access Network
  • Radio Access Network Similar to the base station in the traditional network, it is deployed near the terminal equipment to provide network access functions for authorized users in a specific area, and can be used according to the user's level, business needs, etc. Different quality transmission tunnels transmit user data;
  • UPF User Plane Function, user plane function
  • SMF Session Management Function, session management function
  • AUSF Authentication Server Function, authentication server function: perform UE security authentication
  • AMF Access and Mobility Management Function: UE access management and mobility management;
  • SMF UE session management
  • NSSF Network Slice Selection Function, network slice selection function
  • NEF Network Exposure Function
  • NRF Network Function Repository Function
  • UDM Unified Data Management
  • User signing context management User signing context management
  • PCF Policy Control Function, policy control function: user policy management
  • AF Application Function
  • TSN includes ES (End Station, terminal station equipment) and CNC (Centralized Network Controller, centralized network controller). Among them, the CNC is used for unified management of the services of the entire TSN communication system.
  • ES End Station, terminal station equipment
  • CNC Centralized Network Controller, centralized network controller
  • the terminal device in the 5G system is connected to one or more ESs in the TSN DN (Date Network, data network) outside the 5G system through DS-TT (Device Side TSN Translator) ;
  • the user plane entity is connected to one or more ESs in the TSN DN through NW-TT (Network TSN Translator, network TSN converter).
  • NW-TT Network TSN Translator, network TSN converter.
  • both DS-TT and NW-TT can provide a port (Port) for data transmission.
  • the 5G system will serve as a logical bridge in TSN to provide services for TSN and TSN services. Therefore, the 5G system needs to provide a lower delay guarantee and higher synchronization accuracy, so that when the TSN service is transmitted in the 5G system, the operation and connection of each logical switching node for the TSN are accurate and meet the synchronization required by the TSN service. precision requirements.
  • R17 (Release 17, version 17)
  • Rx-Tx-based positioning the positioning method based on Rx (Receive)-Tx (Transport) Time Difference (hereinafter referred to as "RX-TX-based positioning” Method") is very accurate, and the obtained RTT (Round-Trip Time, round-trip time) can reach the accuracy of several nanoseconds.
  • the RX-TX-based positioning method takes LMF (Location Management Function) as the positioning center, and controls multiple base stations to perform RTT measurement collaboratively through the LMF, wherein the multiple base stations include the services of the terminal equipment The base station corresponding to the cell, and at least one base station adjacent to the base station corresponding to the serving cell.
  • LMF Location Management Function
  • FIG. 3 shows a flowchart of an RX-TX-based positioning method provided by an embodiment of the present application.
  • the RX-TX-based positioning method may include the following steps:
  • step 300 positioning capability interaction is performed between the terminal device and the LMF.
  • the LMF requests the terminal device to obtain the positioning capability, and the terminal device reports the positioning capability to the LMF after receiving the request from the LMF.
  • Step 310 the LMF sends a downlink reference signal (re)configuration to multiple base stations.
  • the (re)configuration of the downlink reference signal includes the starting position (or time) of the downlink reference signal measurement, the transmission window, the downlink reference signal, and the like.
  • the downlink reference signal includes at least one of the following: PRS (Positioning Reference Signal, positioning reference signal), DMRS (Demodulation Reference Signal, demodulation reference signal), TRS (Tracking Reference Signal, tracking reference signal), CSI-RS (Channel State Information Reference Signal, channel state information reference signal), SRS (Sounding Reference Signal, sounding reference information).
  • Step 320 the LMF sends an uplink reference signal (re)configuration to multiple base stations. Similar to step 310, the (re)configuration of the uplink reference signal includes the starting position (or time) of the uplink reference signal, the measurement window, the uplink reference signal, and the like. Optionally, the uplink reference signal includes at least one of the following: SRS, DMRS, and the like.
  • Step 330 the LMF sends a downlink positioning measurement request to the terminal equipment.
  • the downlink positioning measurement request is used to request the terminal device to measure the downlink reference signal and report the measurement result.
  • the downlink positioning measurement request includes positioning assistance information, where the positioning assistance information includes a Cell ID (cell ID (Identifier, Identifier)), a reference signal configuration, and the like.
  • the reference signal configuration includes uplink reference signal configuration and/or downlink reference signal configuration.
  • Step 340 the LMF sends an uplink positioning measurement request to multiple base stations.
  • the uplink positioning measurement request is used to request multiple base stations to measure the uplink reference signal and report the measurement result.
  • the uplink positioning measurement request includes positioning assistance information, where the positioning assistance information includes Cell ID, reference signal configuration, measurement and reporting instructions, and the like.
  • Step 350 the terminal equipment performs downlink reference signal measurement. After receiving the downlink positioning measurement request sent by the LMF, the terminal device receives the downlink reference signal on the designated time-frequency resource according to the downlink reference signal configuration.
  • Step 360 Multiple base stations perform uplink reference signal measurement. After receiving the uplink positioning measurement request sent by the LMF, multiple base stations receive the uplink reference signal on the designated time-frequency resource according to the configuration of the uplink reference signal.
  • Step 370 the terminal equipment sends a downlink positioning measurement report to the LMF.
  • the downlink positioning measurement report includes a time difference between sending and receiving, and a cell identity corresponding to the time difference between sending and receiving.
  • the sending and receiving time difference included in the downlink positioning measurement report is the time difference between the receiving time of the downlink reference signal corresponding to the same base station or the same cell and the sending time of the uplink reference signal.
  • Step 380 Multiple base stations send uplink positioning measurement reports to the LMF.
  • the uplink positioning measurement report includes a time difference between sending and receiving, and a cell identity corresponding to the time difference between sending and receiving.
  • the sending and receiving time difference included in the uplink positioning measurement report is the time difference between the receiving time of the uplink reference signal and the sending time of the downlink reference signal for the terminal device.
  • the LMF performs RTT calculation. Since the positions of multiple base stations are known, the RTT can be calculated by measuring the time difference between sending and receiving, so as to calculate the distance between the terminal equipment and each base station or cell. Multiple base stations can determine the unique position of the terminal equipment in space, and then realize the Precise positioning of end devices.
  • the embodiment of the present application proposes to apply the idea of the positioning method based on RX-TX to the precise synchronization between the terminal device and the network device. Compensation for transmission delay between devices.
  • LMF configures uplink and downlink reference signals between the terminal equipment and multiple base stations participating in positioning, and calculates the RTT to achieve precise positioning of the terminal equipment.
  • an embodiment of the present application proposes a method for compensating transmission delay.
  • a reference signal for transmission delay compensation is configured for a terminal device through a network device, so that the terminal device and the network device can determine the signal transmission based on the sending and receiving of the reference signal.
  • Delay or determine the transmission delay compensated during transmission delay compensation, so as to further compensate for the transmission delay of the signal transmitted between the terminal device and the network device, and provide a method for compensating for the transmission delay, ensuring that Precise synchronization between end devices and network devices.
  • FIG. 4 shows a flowchart of a method for compensating transmission delay provided by an embodiment of the present application.
  • the method can be applied to the system architecture shown in FIG. 1 .
  • the method may include the following steps:
  • Step 410 the network device sends signal configuration information to the terminal device, where the signal configuration information is used to configure a reference signal used for transmission delay compensation between the terminal device and the network device; wherein the reference signal includes: an uplink reference signal and/or a downlink reference signal Signal.
  • the network device can send signal configuration information to the terminal device to configure the reference signal, and then determine the signal transmission delay or the transmission delay compensated during transmission delay compensation according to the time of sending and receiving the reference signal.
  • the network device is a network device corresponding to a serving cell of the terminal device.
  • the network device includes an access network device (eg, gNB, etc.) deployed in the access network to provide wireless communication functions for the terminal device.
  • the terminal device satisfies at least one of the following conditions: having high-precision transmission requirements, supporting the transmission of TSN services, and supporting the transmission of gPTP (general Precise Time Protocol) messages. Therefore, in this embodiment of the present application, a network device corresponding to a serving cell of a terminal device that has high-precision transmission requirements/supports transmission of TSN services/supports transmission of gPTP messages can send signal configuration information to the terminal device to configure reference signals.
  • gPTP General Precise Time Protocol
  • the reference signals include uplink reference signals and/or downlink reference signals.
  • the network device can send the downlink reference signal to the terminal device after configuring the reference signal for the terminal device; on the other hand, the terminal device can send the uplink reference signal to the network device after receiving the signal configuration information of the network device.
  • This embodiment of the present application does not limit the specific signal types of the uplink reference signal and the downlink reference signal.
  • the uplink reference signal includes at least one of the following: SRS, preamble, DMRS, PRS, TRS, CSI-RS;
  • the downlink reference signal includes at least one of the following: PRS, CSI-RS, SSB (SS (Synchronization Signals, synchronization signal)/PBCH (Physical Broadcast Channel, physical broadcast channel) Blocks, synchronization signal block), CRS (Cell Reference Signal, cell reference signal), DMRS, TRS.
  • the uplink reference signal and the downlink reference signal are of the same signal type, for example, the uplink reference signal and the downlink reference signal are both DMRS; or, the uplink reference signal and the downlink reference signal are of different signal types, for example, the uplink reference signal is SRS, and the downlink reference signal is PRS.
  • multiple reference signal sending and receiving processes may be performed between the network device and the terminal device to measure the sending and receiving times of multiple sets of reference signals.
  • the network device may configure multiple reference signals for the terminal device, for example, configure multiple uplink reference signals and multiple downlink reference signals for the terminal device.
  • the signal configuration information further includes: a binding relationship (or referred to as "correspondence") between the uplink reference signal and the downlink reference signal, that is, when configuring the reference signal for the terminal device, the network device further configures the uplink reference signal.
  • the binding relationship between the reference signal and the downlink reference signal so that on the one hand, when the terminal device receives the downlink reference signal, it can be clear that the RX-TX Time Difference is based on the reception time of the downlink reference signal and which uplink reference signal. On the other hand, when receiving the uplink reference signal, the network device can also make it clear that the RX-TX Time Difference is determined according to the receiving moment of the uplink reference signal and which downlink reference signal is sent.
  • the above-mentioned signal configuration information includes a binding relationship between an index (index) of an uplink reference signal and an index of a downlink reference signal, such as a binding relationship between an SRS index and a PRS index; or, the above-mentioned signal configuration information It includes the time interval (or "distance") between the uplink reference signal and the downlink reference signal with a binding relationship, such as the interval between the transmission moment of the uplink reference signal and the transmission moment of the downlink reference signal, the distance between the reference signal Bitmap (bitmap), the mapping index (mapping index) of the uplink reference signal and the downlink reference signal at a specific location.
  • bitmap bitmap
  • mapping index mapping index
  • the terminal device after receiving the signal configuration information, transmits and receives reference signals with the network device.
  • the network device sends a downlink reference signal to the terminal device and receives an uplink reference signal from the terminal device; the terminal device sends an uplink reference signal to the network device and receives a downlink reference signal from the network device.
  • This embodiment of the present application does not limit the time when the network device and the terminal device send and receive reference signals. or, when receiving the uplink reference signal from the terminal device, or after receiving the uplink reference signal from the terminal device, the network device performs reference signal transmission and reception with the terminal device.
  • a reference signal used for transmission delay compensation is configured for a terminal device through a network device, so that the terminal device and the network device can determine the signal transmission delay based on the sending and receiving of the reference signal, or Determine the transmission delay compensated in the transmission delay compensation, so as to further realize the compensation for the transmission delay of the signal transmitted between the terminal device and the network device, and provide a compensation method for the transmission delay, which ensures the connection between the terminal device and the network device. Precise synchronization between devices.
  • the technical solutions provided in the embodiments of the present application can be applied to the 5G system. Since the transmission delay between the terminal equipment and the network equipment in the 5G system is compensated, it is ensured that the 5G system has higher synchronization accuracy, so that the The 5G system meets the synchronization accuracy requirements for TSN services.
  • the embodiments of the present application provide a variety of signal types of the reference signal, which enriches the signal types of the reference signal, and enables the network device to configure the reference signal autonomously and flexibly.
  • the reference signal includes an uplink reference signal and/or a downlink reference signal
  • the network device further configures a binding relationship between the uplink reference signal and the downlink reference signal for the terminal device, so that the terminal device and the network device can The basis for determining the time difference between sending and receiving is clarified respectively.
  • the time difference between which uplink reference signal is sent and which downlink reference signal is received For terminal equipment, it can specify the time difference between which uplink reference signal is sent and which downlink reference signal is received; for network equipment, it can be clearly defined as The time difference between which downlink reference signal is sent and which uplink reference signal is received ensures the accuracy of determining the time difference between sending and receiving, thereby improving the accuracy of determining the transmission delay.
  • the signal transmission delay between the terminal device and the network device or the transmission delay compensated for the transmission delay compensation can be determined by the terminal device (the terminal device is a computing entity) or by the network device. (The network device is a computing entity). In the following, the two cases are described respectively.
  • the above method further includes the following steps:
  • Step 422 the terminal device sends the first delay reference information to the network device.
  • the terminal device may send first delay reference information to the network device, the first delay
  • the reference information can be used to provide a reference for the network device to calculate the signal transmission delay or the transmission delay to be compensated.
  • the first delay reference information is obtained by measuring the reference signal by the terminal device, such as measuring the transmission time of the uplink reference signal, the reception time of the downlink reference signal, and the like. Based on this, in an example, the first delay reference information includes at least one of the following: the time of receiving the downlink reference signal, the time of sending the uplink reference signal, and the difference between the time of receiving the downlink reference signal and the time of sending the uplink reference signal. The time difference, the index of the downlink reference signal, the index of the uplink reference signal, and the mapping index between the downlink reference signal and the uplink reference signal.
  • the terminal device when the terminal device measures the time difference between sending and receiving, it measures the time difference between sending and receiving uplink and downlink reference signals that have a binding relationship, such as measuring the receiving moment of a certain downlink reference signal and the time difference between it and the downlink reference signal. The time difference between the transmission moments of the uplink reference signal with a certain relationship.
  • the terminal device measures the mapping index, it measures the mapping index between the uplink and downlink reference signals with the binding relationship.
  • the foregoing step 422 includes: the terminal device sends the first delay reference information to the network device at the first time; wherein the first time It includes any one of the following: the moment of receiving the downlink reference signal, the moment after the moment of receiving the downlink reference signal, the moment of sending the uplink reference signal, the moment after the moment of sending the uplink reference signal, the second moment, and the moment after the second moment .
  • the second time is the time at which the time difference between the receiving time of the downlink reference signal and the transmission time of the uplink reference signal is determined.
  • the second moment is the moment when the terminal device determines a time difference between sending and receiving between a group of uplink and downlink reference signals with a binding relationship.
  • the terminal device periodically sends the first delay reference information to the network device, and when periodically sending the first delay reference information, the content of the first delay reference information sent by the terminal device each time may be the same, or can be different.
  • the first delay reference information sent by the terminal device for the first time includes the sending and receiving time difference between the first uplink reference signal and the first downlink reference signal
  • the first delay reference information sent by the terminal device for the second time includes Transceive time difference between the second uplink reference signal and the second downlink reference signal.
  • the value of the time difference for sending and receiving between the first uplink reference signal and the first downlink reference signal and the value of the time difference for sending and receiving between the second uplink reference signal and the second downlink reference signal may be the same or different.
  • the first uplink reference signal and the first downlink reference signal and the second uplink reference signal and the second downlink reference signal may be the same or different.
  • the first delay reference information sent by the terminal device for the first time includes a sending and receiving time difference between a set of uplink and downlink reference signals
  • the first delay reference information sent by the terminal device for the second time includes two sets of uplink and downlink reference signals.
  • the time difference between sending and receiving signals in the case of the same continuous sending and receiving time difference, the terminal device may not report the sending and receiving time difference between the uplink and downlink reference signals, or only report the sending and receiving time difference between a group of uplink and downlink reference signals.
  • Step 424 the network device determines the signal transmission delay between the terminal device and the network device, or the transmission delay compensated during the transmission delay compensation, according to the first delay reference information.
  • the network device may determine the signal transmission delay or the transmission delay to be compensated according to the first delay reference information. Since the network device itself also measures the reference signal, optionally, the network device may determine the signal transmission delay or the transmission delay to be compensated by combining the first delay reference information and the measurement result of the reference signal by the network device , thereby improving the accuracy of the delay determination result.
  • the network device since the network device or the terminal device may perform a part of the delay compensation when transmitting the uplink and downlink reference signals, the network device may not calculate the actual transmission delay of the transmitted signal according to the first delay reference information. , but the actual transmission delay that needs to be compensated in the transmission delay compensation.
  • the network device calculates the function of the transmission delay according to the first delay reference information, and the function of the transmission delay is the transmission delay that actually needs to be compensated during the transmission delay compensation. Therefore, in this embodiment of the present application, the network device determines the signal transmission delay between the terminal device and the network device according to the first delay reference information in one case.
  • the signal transmission delay includes at least the following: One item: RTT, RX-TX Time Difference; in the other case, the compensation transmission delay is determined during transmission delay compensation.
  • the above method further includes the following steps:
  • Step 421 the network device sends the second delay reference information to the terminal device.
  • the network device may send second delay reference information to the terminal device, the second delay
  • the reference information can be used to provide a reference for the terminal device to calculate the signal transmission delay or the transmission delay to be compensated.
  • the second delay reference information is obtained by measuring the reference signal by the network device, such as measuring the receiving time of the uplink reference signal, the sending time of the downlink reference signal, and the like.
  • the second delay reference information includes at least one of the following items: the transmission time of the downlink reference signal, the reception time of the uplink reference signal, and the difference between the transmission time of the downlink reference signal and the reception time of the uplink reference signal.
  • the network device when the network device measures the time difference between sending and receiving, it measures the time difference between sending and receiving uplink and downlink reference signals that have a binding relationship, such as measuring the receiving moment of a certain uplink reference signal and the time difference between it and the uplink reference signal. The time difference between the transmission moments of the downlink reference signal with the fixed relationship.
  • the terminal device measures the mapping index, it measures the mapping index between the uplink and downlink reference signals with the binding relationship.
  • the above step 421 includes: the network device sends the second delay reference information to the terminal device at a third time; wherein the third time Including any one of the following: the transmission time of the downlink reference signal, the time after the transmission time of the downlink reference signal, the reception time of the uplink reference signal, the time after the reception time of the uplink reference signal, the fourth time, the time after the fourth time .
  • the fourth time is the time at which the time difference between the transmission time of the downlink reference signal and the reception time of the uplink reference signal is determined.
  • the fourth moment is the moment when the network device determines the time difference between sending and receiving between a group of uplink and downlink reference signals with a binding relationship.
  • the network device periodically sends the second delay reference information to the terminal device.
  • the content of the second delay reference information sent by the network device each time may be the same, or can be different.
  • the second delay reference information sent by the network device for the first time includes the sending and receiving time difference between the first uplink reference signal and the first downlink reference signal
  • the second delay reference information sent by the network device for the second time includes Transceive time difference between the second uplink reference signal and the second downlink reference signal.
  • the value of the time difference for sending and receiving between the first uplink reference signal and the first downlink reference signal and the value of the time difference for sending and receiving between the second uplink reference signal and the second downlink reference signal may be the same or different.
  • the first uplink reference signal and the first downlink reference signal and the second uplink reference signal and the second downlink reference signal may be the same or different.
  • the second delay reference information sent by the network device for the first time includes a sending and receiving time difference between a set of uplink and downlink reference signals
  • the second delay reference information sent by the network device for the second time includes two sets of uplink and downlink reference signals.
  • the time difference between sending and receiving in the case of the same continuous sending and receiving time difference, the network device may not report the sending and receiving time difference between the uplink and downlink reference signals, or only report the sending and receiving time difference between a group of uplink and downlink reference signals.
  • Step 423 the terminal device determines the signal transmission delay between the terminal device and the network device, or the transmission delay compensated during the transmission delay compensation, according to the second delay reference information.
  • the terminal device may determine the signal transmission delay or the transmission delay to be compensated according to the second delay reference information. Since the terminal device itself also measures the reference signal, optionally, the terminal device can determine the signal transmission delay or the transmission delay to be compensated by combining the second delay reference information and the measurement result of the reference signal by the terminal device , thereby improving the accuracy of the delay determination result.
  • the terminal device may not calculate the actual transmission delay of the transmitted signal according to the first delay reference information. , but the actual transmission delay that needs to be compensated in the transmission delay compensation.
  • the terminal device calculates the function of the transmission delay according to the first delay reference information, and the function of the transmission delay is the transmission delay that actually needs to be compensated for in the transmission delay compensation. Therefore, in this embodiment of the present application, the terminal device determines the signal transmission delay between the terminal device and the network device according to the second delay reference information in one case.
  • the signal transmission delay includes at least the following: One item: RTT, transmission delay (1/2 of RTT); in the other case, it is determined that the transmission delay compensated by the transmission delay compensation.
  • the above signal configuration information further includes: computing entity indication information.
  • the calculation entity indication information is used to indicate an entity that determines the signal transmission delay or the transmission delay to be compensated. This embodiment of the present application does not limit the manner of determining the computing entity indication information.
  • the computing entity indication information may explicitly indicate the computing entity, or may implicitly indicate the computing entity.
  • the computing entity indication information includes a terminal device or a network device.
  • the computing entity indication information includes a terminal device
  • the terminal device is used as the computing entity; or, the computing entity indication information includes: the terminal device sends the first delay reference information to the network device, or the network device sends the second delay to the terminal device
  • the computing entity indication information includes the first delay reference information sent by the terminal device to the network device, and the network device acts as the computing entity; or, the computing entity indication information includes: the network device receives the first delay reference information, or The terminal device receives the second delay reference information.
  • the computing entity indication information includes the terminal device receiving the second delay reference information, the terminal device is used as the computing entity.
  • the computing entity is indicated by the network device sending dedicated signaling to the terminal device, such as RRC (Radio Resource Control, Radio Resource Control) signaling.
  • RRC Radio Resource Control, Radio Resource Control
  • the way of indicating the computing entity will not be repeated here.
  • the computing entity is predefined by the communication protocol. For the manner in which the computing entity is defined by the communication protocol, reference may be made to the manner in which the computing entity indication information indicates the computing entity, and details are omitted here.
  • the technical solutions provided by the embodiments of the present application measure the reference signal through network equipment and terminal equipment, and then determine the signal transmission delay or the transmission delay to be compensated according to the measurement result, so as to perform transmission delay compensation Provide evidence.
  • the signal transmission delay or the transmission delay to be compensated can be determined by the terminal device or the network device, which improves the flexibility of determining the delay and helps to independently and flexibly select the time delay according to actual needs.
  • the subject of delay determination for example, in the case that the available computing resources of the terminal device are few, in order not to increase the processing overhead of the terminal device, the network device may determine the transmission delay.
  • either the terminal device can perform the transmission delay compensation (the terminal device is the compensation subject), or the network device can perform the transmission delay compensation (the network device is the compensation subject) .
  • the above method further includes step 432: the terminal device performs transmission delay compensation according to the compensation subject information.
  • the terminal device When it is determined that the terminal device is the compensation subject according to the compensation subject information, the terminal device performs transmission delay compensation. For example, the terminal device subtracts the signal transmission delay or the transmission delay to be compensated from the expected transmission time of the signal to obtain the actual transmission time of the signal. time, and determine the time according to the actual transmission time, or perform synchronization, or transmit signals, so as to achieve the purpose of transmission delay compensation and synchronization.
  • the compensation subject information is used to indicate the subject performing transmission delay compensation.
  • the compensation subject information includes at least one of the following: subject indication information from the network device, subject configuration information from the network device, and communication protocol predefined information.
  • Compensation subject information When the compensation body information includes body indication information, the body indication information may be carried in dedicated signaling, that is, the network device may indicate the compensation body to the terminal device through dedicated signaling (eg, RRC signaling).
  • the compensation subject information includes subject configuration information, the network device may configure a compensation subject for the terminal device.
  • the compensation body information includes compensation body information predefined by the communication protocol
  • the compensation body is predefined by the communication protocol.
  • the compensation subject information includes: whether the terminal device performs transmission delay compensation, or whether the network device performs transmission delay compensation.
  • the compensation subject information includes the terminal device performing transmission delay compensation, the terminal device is used as the compensation subject, and the network device sends the second delay reference information to the terminal device.
  • the compensation subject information includes that the network device does not perform transmission delay compensation, the terminal device is used as the compensation subject, and the network device sends the second delay reference information to the terminal device.
  • this embodiment of the present application does not limit the timing at which the terminal device performs transmission delay compensation.
  • the terminal device determines the signal transmission delay or The signal transmission delay that needs to be compensated, the transmission delay compensation is performed; or, in the case where the computing entity is a terminal device, the terminal device performs transmission delay compensation in the case of obtaining the time information from the network device; or, in the In the case where the computing entity is a network device, the terminal device performs transmission delay compensation when receiving the signal transmission delay determined by the network device or the transmission delay to be compensated; or, in the case where the computing entity is a network device Under the condition of receiving the signal transmission delay determined by the network device or the transmission delay and time information to be compensated, the terminal device performs transmission delay compensation; or, the terminal device performs transmission delay compensation when the execution conditions are met .
  • the execution conditions include at least one of the following: obtaining signal transmission delay or transmission delay to be compensated, receiving indication information that the network device does not perform transmission delay compensation, receiving indication information that the terminal device performs transmission delay compensation , the distance between the terminal equipment and the network equipment is greater than or equal to the first threshold value, the ISD of the serving cell of the terminal equipment (the distance from the center of the serving cell to the edge) is greater than or equal to the second threshold value, the signal transmission delay Or the signal transmission delay to be compensated is greater than or equal to the third threshold value.
  • the time difference between the signal transmission delay actually calculated by the terminal device and the obtained synchronization time of the NW such as SFN (System Frame Number, system frame number)
  • the time difference between the obtained NW information less than or equal to the fourth threshold value.
  • the above method further includes step 431 : the network device performs transmission delay compensation according to the compensation subject information.
  • the network device When it is determined that the network device is the compensation subject according to the compensation subject information, the network device performs transmission delay compensation. For example, the network device subtracts the signal transmission delay or the transmission delay to be compensated from the expected transmission time of the signal to obtain the actual transmission time of the signal. time, and indicate corresponding time information according to the actual transmission time, such as the actual time corresponding to the reference SFN, so as to achieve the purpose of transmission delay compensation and synchronization.
  • the compensation subject information is used to indicate the subject performing transmission delay compensation.
  • the embodiment of the present application does not limit the bearing method of the compensation subject information.
  • the compensation subject information includes at least one of the following: subject indication information of the network device, subject configuration information of the network device, and compensation subject information predefined by a communication protocol.
  • the compensation body information includes body indication information
  • the body indication information may be carried in dedicated signaling, that is, the network device may indicate the compensation body to the terminal device through dedicated signaling (eg, RRC signaling).
  • the compensation body information includes the body configuration information
  • the network device may configure the compensation body for the terminal device.
  • the compensation body information includes compensation body information predefined by the communication protocol
  • the compensation body is predefined by the communication protocol.
  • the compensation subject information includes: whether the terminal device performs transmission delay compensation, or whether the network device performs transmission delay compensation.
  • the compensation subject information includes the network device performing transmission delay compensation, the network device is used as the compensation subject, and the terminal device sends the first delay reference information to the network device.
  • the compensation subject information includes that the terminal device does not perform transmission delay compensation, the network device is used as the compensation subject, and the terminal device sends the first delay reference information to the network device.
  • the embodiment of the present application does not limit the timing for the network device to perform transmission delay compensation.
  • the network device determines the signal transmission delay or The signal transmission delay that needs to be compensated, the transmission delay compensation is performed; or, in the case where the computing entity is a network device, the network device performs transmission delay compensation in the case of obtaining the time information from the terminal device; or, in the case of In the case where the computing entity is a terminal device, the network device performs transmission delay compensation when receiving the signal transmission delay determined by the terminal device or the transmission delay to be compensated; or, in the case where the computing entity is a terminal device In the case of receiving the signal transmission delay determined by the terminal device or the transmission delay and time information to be compensated, the network device performs transmission delay compensation; or, the network device performs transmission delay compensation when the execution conditions are met.
  • the execution conditions include at least one of the following: the signal transmission delay or the transmission delay to be compensated is obtained, the distance between the terminal device and the network device is greater than or equal to the first threshold value, the ISD (ISD ( The distance from the center point of the serving cell to the edge) is greater than or equal to the second threshold value, and the signal transmission delay or the signal transmission delay to be compensated is greater than or equal to the third threshold value.
  • the time difference between the signal transmission delay actually calculated by the network device and the acquired synchronization time of the NW (eg SFN), or the time difference between the acquired NW information is less than or equal to the fourth threshold.
  • the computing entity and the compensating subject are the same, for example, the computing entity and the compensating subject are both terminal devices, or both are network devices, by calculating the signal transmission delay or the transmission delay to be compensated by the same device, and performing the transmission Delay compensation can avoid too much information exchange between the terminal device and the network device; or, the computing entity and the compensation subject are different, for example, the computing entity is the terminal device, and the compensation subject is the network device, and one device is used to calculate the signal Transmission delay, or transmission delay to be compensated, is performed by another device to help spread and balance processing overhead.
  • the compensation subject of the transmission delay compensation is determined by the compensation subject information, and the compensation subject can be indicated to the terminal device by the network device through dedicated signaling, or can be configured by the network device.
  • the information is configured by the terminal device and can also be predefined by the communication protocol, thus enriching the way of determining the compensation subject and improving the flexibility of the selection of the compensation subject.
  • FIG. 7 shows a flowchart of a method for compensating transmission delay provided by an embodiment of the present application.
  • the method can be applied to the system architecture shown in FIG. 1 .
  • the method may include the following steps:
  • Step 710 the network device sends the signal configuration information to the terminal device.
  • the signal configuration information is used to configure a reference signal used for transmission delay compensation between the terminal device and the network device; wherein the reference signal includes: an uplink reference signal and/or a downlink reference signal.
  • Step 720 the network device sends a downlink reference signal to the terminal device.
  • the downlink reference signal includes at least one of the following: PRS, CSI-RS, SSB, CRS, DMRS, TRS.
  • Step 730 The terminal device sends an uplink reference signal to the network device.
  • the uplink reference signal includes at least one of the following: SRS, preamble, DMRS, PRS, TRS, and CSI-RS.
  • step 720 and step 730 are executed simultaneously, or step 720 is executed after step 730, or step 720 is executed after step 730 performed before.
  • step 720 and step 730 are executed periodically.
  • the terminal device and the network device respectively perform reference signal measurement.
  • the reference signal measurement includes measuring the time difference between sending and receiving uplink and downlink reference signals.
  • the reference signal measurement includes measuring the time difference between the transmission moment of the uplink reference signal and the reception moment of the downlink reference signal.
  • Step 750 The terminal device sends the first delay reference information to the network device.
  • the first delay reference information includes at least one of the following: the time of receiving the downlink reference signal, the time of sending the uplink reference signal, the time difference between the time of receiving the downlink reference signal and the time of sending the uplink reference signal, the downlink reference signal.
  • the network device determines the signal transmission delay or the transmission delay compensated during transmission delay compensation.
  • the network device determines the signal transmission delay or the transmission delay compensated during transmission delay compensation in combination with the first delay reference information sent by the terminal device and the measurement result of the reference signal by the network device.
  • Step 770 the network device sends the signal transmission delay or the transmission delay compensated during the transmission delay compensation to the terminal device.
  • Step 780 the terminal device performs transmission delay compensation. For example, the terminal device subtracts the signal transmission delay or the transmission delay to be compensated from the expected transmission time of the signal to obtain the actual transmission time of the signal, and transmits the signal according to the actual transmission time, so as to achieve the purpose of transmission delay compensation.
  • FIG. 8 shows a flowchart of a method for compensating transmission delay provided by an embodiment of the present application.
  • the method can be applied to the system architecture shown in FIG. 1 .
  • the method may include the following steps:
  • Step 810 the network device sends the signal configuration information to the terminal device.
  • the signal configuration information is used to configure a reference signal used for transmission delay compensation between the terminal device and the network device; wherein the reference signal includes: an uplink reference signal and/or a downlink reference signal.
  • Step 820 the network device sends a downlink reference signal to the terminal device.
  • the downlink reference signal includes at least one of the following: PRS, CSI-RS, SSB, CRS, DMRS, TRS.
  • Step 830 the terminal device sends an uplink reference signal to the network device.
  • the uplink reference signal includes at least one of the following: SRS, preamble, DMRS, PRS, TRS, and CSI-RS.
  • step 820 and step 830 are executed simultaneously, or step 820 is executed after step 830, or step 820 is executed after step 830 performed before.
  • step 820 and step 830 are executed periodically.
  • Step 840 the terminal device and the network device respectively perform reference signal measurement.
  • the reference signal measurement includes measuring the time difference between sending and receiving uplink and downlink reference signals.
  • the reference signal measurement includes measuring the time difference between the time of receiving the uplink reference signal and the time of sending the downlink reference signal.
  • Step 850 the network device sends the second delay reference information to the terminal device.
  • the second delay reference information includes at least one of the following items: the transmission time of the downlink reference signal, the reception time of the uplink reference signal, the time difference between the transmission time of the downlink reference signal and the reception time of the uplink reference signal, the downlink reference signal.
  • Step 860 the terminal device determines the signal transmission delay or the transmission delay compensated during the transmission delay compensation.
  • the terminal device determines the signal transmission delay or the transmission delay compensated during transmission delay compensation in combination with the second delay reference information sent by the network device and the measurement result of the reference signal by the terminal device.
  • Step 870 the terminal device performs transmission delay compensation. For example, the terminal device subtracts the signal transmission delay or the transmission delay to be compensated from the expected transmission time of the signal to obtain the actual transmission time of the signal, and transmits the signal according to the actual transmission time, so as to achieve the purpose of transmission delay compensation.
  • the method for compensating the transmission delay provided by the present application is mainly described from the perspective of interaction between the terminal device and the network device.
  • the above-mentioned steps performed by the relevant terminal equipment can be independently implemented as a method for compensating transmission delay at the terminal equipment side; the above-mentioned steps performed by the relevant network equipment can be independently implemented as a method for compensating transmission delay at the network equipment side.
  • FIG. 9 shows a block diagram of an apparatus for compensating transmission delay provided by an embodiment of the present application.
  • the apparatus has the function of implementing the above-mentioned method example on the terminal device side, and the function may be implemented by hardware or by executing corresponding software in hardware.
  • the apparatus may be the above-mentioned terminal equipment, or may be set in the terminal equipment.
  • the apparatus 900 may include: a configuration information receiving module 910 .
  • the configuration information receiving module 910 is configured to receive signal configuration information from a network device, where the signal configuration information is used to configure a reference signal used for transmission delay compensation between the terminal device and the network device;
  • the reference signals include: uplink reference signals and/or downlink reference signals.
  • the uplink reference signal includes at least one of the following: SRS, preamble, and DMRS.
  • the downlink reference signal includes at least one of the following: PRS, CSI-RS, SSB, CRS, DMRS, TRS.
  • the signal configuration information further includes: a binding relationship between the uplink reference signal and the downlink reference signal.
  • the apparatus 900 further includes: a first information sending module 922, configured to send first delay reference information to the network device, where the first delay reference information is used for Determine the signal transmission delay between the terminal device and the network device, or the transmission delay compensated during the transmission delay compensation.
  • a first information sending module 922 configured to send first delay reference information to the network device, where the first delay reference information is used for Determine the signal transmission delay between the terminal device and the network device, or the transmission delay compensated during the transmission delay compensation.
  • the first delay reference information includes at least one of the following items: the time of receiving the downlink reference signal, the time of sending the uplink reference signal, the time of receiving the downlink reference signal, and the time of the uplink reference signal.
  • the first information sending module 922 is configured to: send the first delay reference information to the network device at a first moment; wherein the first moment includes Any one of the following: the receiving time of the downlink reference signal, the time after the receiving time of the downlink reference signal, the transmission time of the uplink reference signal, the time after the transmission time of the uplink reference signal, the second time , the time after the second time; the second time is the time at which the time difference between the reception time of the downlink reference signal and the transmission time of the uplink reference signal is determined.
  • the terminal device periodically sends the first delay reference information to the network device.
  • the apparatus 900 further includes: a second information receiving module 921, configured to receive second delay reference information from the network device; a transmission delay determination module 923, configured with according to the second delay reference information, to determine the signal transmission delay between the terminal device and the network device, or the transmission delay compensated during the transmission delay compensation.
  • the second delay reference information includes at least one of the following items: a transmission moment of the downlink reference signal, a reception moment of the uplink reference signal, a transmission moment of the downlink reference signal, and the uplink reference signal The time difference between the reception moments of the signals, the index of the downlink reference signal, the index of the uplink reference signal, and the mapping index between the downlink reference signal and the uplink reference signal.
  • the apparatus further includes: a transmission delay compensation module 930, configured to perform the transmission delay compensation according to the compensation subject information.
  • the compensation subject information includes at least one of the following: subject indication information from the network device, subject configuration information from the network device, and compensation subject information predefined by a communication protocol.
  • the network device is a network device corresponding to a serving cell of the terminal device.
  • the terminal device satisfies at least one of the following conditions: having high-precision transmission requirements, supporting the transmission of TSN services, and supporting the transmission of gPTP messages.
  • a reference signal used for transmission delay compensation is configured for a terminal device through a network device, so that the terminal device and the network device can determine the signal transmission delay based on the sending and receiving of the reference signal, or Determine the transmission delay compensated in the transmission delay compensation, so as to further realize the compensation for the transmission delay of the signal transmitted between the terminal device and the network device, and provide a compensation method for the transmission delay, which ensures the connection between the terminal device and the network device. Precise synchronization between devices.
  • the technical solutions provided in the embodiments of the present application can be applied to the 5G system. Since the transmission delay between the terminal equipment and the network equipment in the 5G system is compensated, it is ensured that the 5G system has higher synchronization accuracy, so that the The 5G system meets the synchronization accuracy requirements for TSN services.
  • FIG. 11 shows a block diagram of an apparatus for compensating transmission delay provided by an embodiment of the present application.
  • the apparatus has the function of implementing the foregoing method example on the network device side, and the function may be implemented by hardware, or by executing corresponding software in hardware.
  • the apparatus may be the network device described above, or may be set in the network device.
  • the apparatus 1100 may include: a configuration information sending module 1110 .
  • a configuration information sending module 1110 configured to send signal configuration information to a terminal device, where the signal configuration information is used to configure a reference signal used for transmission delay compensation between the terminal device and the network device; wherein the reference The signals include: uplink reference signals and/or downlink reference signals.
  • the uplink reference signal includes at least one of the following: SRS, preamble, and DMRS.
  • the downlink reference signal includes at least one of the following: PRS, CSI-RS, SSB, CRS, DMRS, TRS.
  • the signal configuration information further includes: a binding relationship between the uplink reference signal and the downlink reference signal.
  • the apparatus 1100 further includes: a first information receiving module 1122, configured to receive the first delay reference information from the terminal device; a transmission delay determination module 1124, configured with according to the first delay reference information, to determine the signal transmission delay between the terminal device and the network device, or the transmission delay compensated during the transmission delay compensation.
  • the first delay reference information includes at least one of the following items: the time of receiving the downlink reference signal, the time of sending the uplink reference signal, the time of receiving the downlink reference signal, and the time of the uplink reference signal.
  • the apparatus 1100 further includes: a second information sending module 1121, configured to send second delay reference information to the terminal device, where the second delay reference information is used for Determine the signal transmission delay between the terminal device and the network device, or the transmission delay compensated during the transmission delay compensation.
  • a second information sending module 1121 configured to send second delay reference information to the terminal device, where the second delay reference information is used for Determine the signal transmission delay between the terminal device and the network device, or the transmission delay compensated during the transmission delay compensation.
  • the second delay reference information includes at least one of the following items: a transmission moment of the downlink reference signal, a reception moment of the uplink reference signal, a transmission moment of the downlink reference signal, and the uplink reference signal The time difference between the reception moments of the signals, the index of the downlink reference signal, the index of the uplink reference signal, and the mapping index between the downlink reference signal and the uplink reference signal.
  • the second information sending module 1121 is configured to: send the second delay reference information to the terminal device at a third moment; wherein the third moment includes Any one of the following: the transmission time of the downlink reference signal, the time after the transmission time of the downlink reference signal, the reception time of the uplink reference signal, the time after the reception time of the uplink reference signal, the fourth time , the time after the fourth time; the fourth time is the time at which the time difference between the transmission time of the downlink reference signal and the reception time of the uplink reference signal is determined.
  • the network device periodically sends the second delay reference information to the terminal device.
  • the apparatus 1100 further includes: a transmission delay compensation module 1130, configured to perform the transmission delay compensation according to the compensation subject information.
  • the compensation subject information includes at least one of the following: subject indication information of the network device, subject configuration information of the network device, and compensation subject information predefined by a communication protocol.
  • the network device is a network device corresponding to a serving cell of the terminal device.
  • the terminal device satisfies at least one of the following conditions: having high-precision transmission requirements, supporting the transmission of TSN services, and supporting the transmission of gPTP messages.
  • a reference signal used for transmission delay compensation is configured for a terminal device through a network device, so that the terminal device and the network device can determine the signal transmission delay based on the sending and receiving of the reference signal, or Determine the transmission delay compensated in the transmission delay compensation, so as to further realize the compensation for the transmission delay of the signal transmitted between the terminal device and the network device, and provide a compensation method for the transmission delay, which ensures the connection between the terminal device and the network device. Precise synchronization between devices.
  • the technical solutions provided in the embodiments of the present application can be applied to the 5G system. Since the transmission delay between the terminal equipment and the network equipment in the 5G system is compensated, it is ensured that the 5G system has higher synchronization accuracy, so that the The 5G system meets the synchronization accuracy requirements for TSN services.
  • the device provided in the above embodiment realizes its functions, only the division of the above functional modules is used as an example for illustration. In practical applications, the above functions can be allocated to different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • FIG. 13 shows a schematic structural diagram of a terminal device 130 provided by an embodiment of the present application.
  • the terminal device can be used to execute the above-mentioned method for compensating transmission delay at the terminal device side.
  • the terminal device 130 may include: a processor 131, and a transceiver 132 connected to the processor 131; wherein:
  • the processor 131 includes one or more processing cores, and the processor 131 executes various functional applications and information processing by running software programs and modules.
  • Transceiver 132 includes a receiver and a transmitter.
  • transceiver 132 is a communication chip.
  • the terminal device 130 further includes: a memory and a bus.
  • the memory is connected to the processor through a bus.
  • the memory can be used to store a computer program, and the processor is used to execute the computer program, so as to implement various steps performed by the terminal device in the above method embodiments.
  • volatile or non-volatile storage devices include but are not limited to: RAM (Random-Access Memory, random access memory) and ROM (Read-Only Memory), EPROM (Erasable Programmable Read-Only Memory, Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory, Electrically Erasable Programmable Read-Only Memory) ), flash memory or other solid-state storage technology, CD-ROM (Compact Disc Read-Only Memory), DVD (Digital Video Disc, high-density digital video disc) or other optical storage, tape cassettes, tapes, disk storage or other magnetic storage devices. in:
  • the transceiver 132 is configured to receive signal configuration information from a network device, where the signal configuration information is used to configure a reference signal used for transmission delay compensation between the terminal device and the network device;
  • the reference signals include: uplink reference signals and/or downlink reference signals.
  • the uplink reference signal includes at least one of the following: SRS, preamble, and DMRS.
  • the downlink reference signal includes at least one of the following: PRS, CSI-RS, SSB, CRS, DMRS, TRS.
  • the signal configuration information further includes: a binding relationship between the uplink reference signal and the downlink reference signal.
  • the transceiver 132 is configured to send first delay reference information to the network device, where the first delay reference information is used to determine a signal between the terminal device and the network device Transmission delay, or the transmission delay compensated during the transmission delay compensation.
  • the first delay reference information includes at least one of the following items: the time of receiving the downlink reference signal, the time of sending the uplink reference signal, the time of receiving the downlink reference signal, and the time of the uplink reference signal.
  • the transceiver 132 is configured to: send the first delay reference information to the network device at a first moment; wherein the first moment includes any one of the following: the downlink reference Signal reception time, time after the reception time of the downlink reference signal, transmission time of the uplink reference signal, time after the transmission time of the uplink reference signal, second time, time after the second time ; the second time is the time for determining the time difference between the receiving time of the downlink reference signal and the sending time of the uplink reference signal.
  • the terminal device periodically sends the first delay reference information to the network device.
  • the transceiver 132 is configured to receive second delay reference information from the network device; the processor 131 is configured to determine the terminal according to the second delay reference information The signal transmission delay between the device and the network device, or the transmission delay compensated during the transmission delay compensation.
  • the second delay reference information includes at least one of the following items: a transmission moment of the downlink reference signal, a reception moment of the uplink reference signal, a transmission moment of the downlink reference signal, and the uplink reference signal The time difference between the reception moments of the signals, the index of the downlink reference signal, the index of the uplink reference signal, and the mapping index between the downlink reference signal and the uplink reference signal.
  • the processor 131 is configured to: perform the transmission delay compensation according to the compensation subject information.
  • the compensation subject information includes at least one of the following: subject indication information from the network device, subject configuration information from the network device, and compensation subject information predefined by a communication protocol.
  • the network device is a network device corresponding to a serving cell of the terminal device.
  • the terminal device satisfies at least one of the following conditions: having high-precision transmission requirements, supporting the transmission of TSN services, and supporting the transmission of gPTP messages.
  • FIG. 14 shows a schematic structural diagram of a network device 140 provided by an embodiment of the present application.
  • the network device can be used to execute the above-mentioned method for compensating transmission delay on the network device side.
  • the network device 140 may include: a processor 141, and a transceiver 142 connected to the processor 141; wherein:
  • the processor 141 includes one or more processing cores, and the processor 141 executes various functional applications and information processing by running software programs and modules.
  • Transceiver 142 includes a receiver and a transmitter.
  • transceiver 142 is a communication chip.
  • the network device 140 also includes: a memory and a bus.
  • the memory is connected to the processor through a bus.
  • the memory can be used to store a computer program, and the processor is used to execute the computer program, so as to implement various steps performed by the network device in the above method embodiments.
  • the memory may be implemented by any type or combination of volatile or non-volatile storage devices including, but not limited to: RAM and ROM, EPROM, EEPROM, flash memory or other Solid-state storage technology, CD-ROM, DVD or other optical storage, tape cartridges, magnetic tape, magnetic disk storage or other magnetic storage devices. in:
  • the transceiver 142 is configured to send signal configuration information to a terminal device, where the signal configuration information is used to configure a reference signal used for transmission delay compensation between the terminal device and the network device; wherein the reference The signals include: uplink reference signals and/or downlink reference signals.
  • the uplink reference signal includes at least one of the following: SRS, preamble, and DMRS.
  • the downlink reference signal includes at least one of the following: PRS, CSI-RS, SSB, CRS, DMRS, TRS.
  • the signal configuration information further includes: a binding relationship between the uplink reference signal and the downlink reference signal.
  • the transceiver 142 is configured to receive first delay reference information from the terminal device; the processor 141 is configured to determine the terminal according to the first delay reference information The signal transmission delay between the device and the network device, or the transmission delay compensated during the transmission delay compensation.
  • the first delay reference information includes at least one of the following items: the time of receiving the downlink reference signal, the time of sending the uplink reference signal, the time of receiving the downlink reference signal, and the time of the uplink reference signal.
  • the transceiver 142 is configured to: send second delay reference information to the terminal device, where the second delay reference information is used to determine the time delay between the terminal device and the network device Signal transmission delay, or the compensated transmission delay when the transmission delay is compensated.
  • the second delay reference information includes at least one of the following items: a transmission moment of the downlink reference signal, a reception moment of the uplink reference signal, a transmission moment of the downlink reference signal, and the uplink reference signal The time difference between the reception moments of the signals, the index of the downlink reference signal, the index of the uplink reference signal, and the mapping index between the downlink reference signal and the uplink reference signal.
  • the transceiver 142 is configured to: send the second delay reference information to the terminal device at a third moment; wherein the third moment includes any one of the following: the downlink reference Signal transmission time, time after the transmission time of the downlink reference signal, reception time of the uplink reference signal, time after the reception time of the uplink reference signal, fourth time, time after the fourth time ; the fourth time is the time for determining the time difference between the transmission time of the downlink reference signal and the reception time of the uplink reference signal.
  • the network device periodically sends the second delay reference information to the terminal device.
  • the processor 141 is configured to: perform the transmission delay compensation according to the compensation subject information.
  • the compensation subject information includes at least one of the following: subject indication information of the network device, subject configuration information of the network device, and compensation subject information predefined by a communication protocol.
  • the network device is a network device corresponding to a serving cell of the terminal device.
  • the terminal device satisfies at least one of the following conditions: having high-precision transmission requirements, supporting the transmission of TSN services, and supporting the transmission of gPTP messages.
  • Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used to be executed by a processor of a terminal device, so as to realize the above-mentioned transmission delay of the terminal device side. compensation method.
  • Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used to be executed by a processor of a network device, so as to realize the above-mentioned network device-side transmission delay compensation method.
  • An embodiment of the present application further provides a chip, where the chip includes a programmable logic circuit and/or program instructions, and when the chip runs on a terminal device, it is used to implement the above-mentioned method for compensating transmission delay at the terminal device side .
  • An embodiment of the present application further provides a chip, where the chip includes a programmable logic circuit and/or program instructions, and when the chip runs on a network device, it is used to implement the above-mentioned method for compensating transmission delay on the network device side .
  • the embodiments of the present application also provide a computer program product, which enables the computer to execute the above-mentioned method for compensating transmission delay on the terminal device side when the computer program product runs on the terminal device.
  • the embodiment of the present application also provides a computer program product, when the computer program product runs on a network device, the computer is made to execute the above-mentioned method for compensating transmission delay on the network device side.
  • Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage medium can be any available medium that can be accessed by a general purpose or special purpose computer.

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Abstract

本申请实施例提供了一种传输时延的补偿方法、装置、设备及存储介质，涉及通信技术领域。所述方法包括：网络设备向终端设备发送信号配置信息，信号配置信息用于配置终端设备与网络设备之间用于传输时延补偿的参考信号；其中，参考信号包括：上行参考信号和/或下行参考信号。本申请实施例通过网络设备为终端设备配置用于传输时延补偿的参考信号，进而终端设备和网络设备可以基于参考信号的收发确定信号传输时延，或者确定传输时延补偿时补偿的传输时延，以进一步实现对终端设备与网络设备之间传输的信号的传输时延进行补偿，提供了一种传输时延的补偿方法，确保了终端设备与网络设备之间的精准同步。

Description

传输时延的补偿方法、装置、设备及存储介质 技术领域
本申请实施例涉及通信技术领域，特别涉及一种传输时延的补偿方法、装置、设备及存储介质。
背景技术
5G(5th-Generation，第五代移动通信)IIoT(Industrial Interest of Things，工业互联网)中需求支持工业自动化(Factory automation)，传输自动化(Transport Industry)，智能电力(Electrical Power Distribution)等业务在5G系统的传输。
基于其时延和可靠性的传输需求，IIoT引入了时间敏感性网络TSN(Time Sensitive Network，时间敏感性网络)或TSC(Time Sensitive Communication，时间敏感性传输)的概念。在TSN中，5G系统将作为TSN中的逻辑交换节点(logical bridge)，为TSN以及TSN业务提供服务。基于此，5G系统需要提供更低的时延保证以及更高的同步精度，以便于TSN业务在5G系统中传输时，各个逻辑交换节点针对该TSN的操作和接续精准，且符合TSN业务需要的同步精度要求。
因此，如何实现5G系统提供更高的同步精度，以确保5G系统符合TSN业务需要达到的同步精度要求，还需要进一步地讨论和研究。
发明内容
本申请实施例提供了一种传输时延的补偿方法、装置、设备及存储介质。所述技术方案如下：
一方面，本申请实施例提供了一种传输时延的补偿方法，应用于终端设备中，所述方法包括：
接收来自于网络设备的信号配置信息，所述信号配置信息用于配置所述终端设备与所述网络设备之间用于传输时延补偿的参考信号；
其中，所述参考信号包括：上行参考信号和/或下行参考信号。
另一方面，本申请实施例提供了一种传输时延的补偿方法，应用于网络设备中，所述方法包括：
向终端设备发送信号配置信息，所述信号配置信息用于配置所述终端设备与所述网络设备之间用于传输时延补偿的参考信号；
其中，所述参考信号包括：上行参考信号和/或下行参考信号。
再一方面，本申请实施例提供了一种传输时延的补偿装置，设置在终端设备中，所述装置包括：
配置信息接收模块，用于接收来自于网络设备的信号配置信息，所述信号配置信息用于配置所述终端设备与所述网络设备之间用于传输时延补偿的参考信号；
其中，所述参考信号包括：上行参考信号和/或下行参考信号。
又一方面，本申请实施例提供了一种传输时延的补偿装置，设置在网络设备中，所述装置包括：
配置信息发送模块，用于向终端设备发送信号配置信息，所述信号配置信息用于配置所述终端设备与所述网络设备之间用于传输时延补偿的参考信号；
其中，所述参考信号包括：上行参考信号和/或下行参考信号。
还一方面，本申请实施例提供了一种终端设备，所述终端设备包括：处理器，以及与所述处理器相连的收发器；其中：
所述收发器，用于接收来自于网络设备的信号配置信息，所述信号配置信息用于配置所述终端设备与所述网络设备之间用于传输时延补偿的参考信号；
其中，所述参考信号包括：上行参考信号和/或下行参考信号。
还一方面，本申请实施例提供了一种网络设备，所述网络设备包括：处理器，以及与所述处理器相连的收发器；其中：
所述收发器，用于向终端设备发送信号配置信息，所述信号配置信息用于配置所述终端设备与所述网络设备之间用于传输时延补偿的参考信号；
其中，所述参考信号包括：上行参考信号和/或下行参考信号。
还一方面，本申请实施例提供了一种计算机可读存储介质，所述存储介质中存储有计算机程序，所述 计算机程序用于被终端设备的处理器执行，以实现如上述终端设备侧传输时延的补偿方法。
还一方面，本申请实施例提供了一种计算机可读存储介质，所述存储介质中存储有计算机程序，所述计算机程序用于被网络设备的处理器执行，以实现如上述网络设备侧传输时延的补偿方法。
还一方面，本申请实施例提供了一种芯片，所述芯片包括可编程逻辑电路和/或程序指令，当所述芯片在终端设备上运行时，用于实现如上述终端设备侧传输时延的补偿方法。
还一方面，本申请实施例提供了一种芯片，所述芯片包括可编程逻辑电路和/或程序指令，当所述芯片在网络设备上运行时，用于实现如上述网络设备侧传输时延的补偿方法。
还一方面，本申请实施例提供了一种计算机程序产品，当计算机程序产品在终端设备上运行时，使得计算机执行如上述终端设备侧传输时延的补偿方法。
还一方面，本申请实施例提供了一种计算机程序产品，当计算机程序产品在网络设备上运行时，使得计算机执行如上述网络设备侧传输时延的补偿方法。
本申请实施例提供的技术方案可以包括如下有益效果：
通过网络设备为终端设备配置用于传输时延补偿的参考信号，进而终端设备和网络设备可以基于参考信号的收发确定信号传输时延，或者确定传输时延补偿时补偿的传输时延，以进一步实现对终端设备与网络设备之间传输的信号的传输时延进行补偿，提供了一种传输时延的补偿方法，确保了终端设备与网络设备之间的精准同步。并且，本申请实施例提供的技术方案可以应用于5G系统中，由于对5G系统中的终端设备与网络设备之间的传输时延进行了补偿，确保5G系统具备更高的同步精度，从而使得5G系统满足TSN业务需要达到的同步精度要求。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请一个实施例提供的系统架构的示意图；
图2是本申请一个实施例提供的TSN通信系统的示意图；
图3是本申请一个实施例提供的基于RX-TX的定位方法的流程图；
图4是本申请一个实施例提供的传输时延的补偿方法的流程图；
图5是本申请一个实施例提供的传输时延的确定过程的流程图；
图6是本申请一个实施例提供的传输时延的补偿过程的流程图；
图7是本申请另一个实施例提供的传输时延的补偿方法的流程图；
图8是本申请又一个实施例提供的传输时延的补偿方法的流程图；
图9是本申请一个实施例提供的传输时延的补偿装置的框图；
图10是本申请另一个实施例提供的传输时延的补偿装置的框图；
图11是本申请又一个实施例提供的传输时延的补偿装置的框图；
图12是本申请还一个实施例提供的传输时延的补偿装置的框图；
图13是本申请一个实施例提供的终端设备的结构示意图；
图14是本申请一个实施例提供的网络设备的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
本申请实施例描述的网络架构以及业务场景是为了更加清楚地说明本申请实施例的技术方案，并不构成对本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
请参考图1，其示出了本申请一个实施例提供的系统架构的示意图。该系统架构可以包括：终端设备10和网络设备20。
终端设备10的数量通常为多个，每一个网络设备20所管理的小区内可以分布一个或多个终端设备10。终端设备10可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备，以及各种形式的用户设备(User Equipment，UE)，移动台(Mobile Station，MS)等等。为方便描述，本申请实施例中，上面提到的设备统称为终端设备。
网络设备20是一种部署在接入网中用以为终端设备10提供无线通信功能的装置。网络设备20可以 包括各种形式的宏基站，微基站，中继站，接入点等等。在采用不同的无线接入技术的系统中，具备网络设备功能的设备的名称可能会有所不同，例如在5G NR(New Radio，新空口)系统中，称为gNodeB或者gNB。随着通信技术的演进，“网络设备”这一名称可能会变化。为方便描述，本申请实施例中，上述为终端设备10提供无线通信功能的装置统称为网络设备。
本申请实施例中的“5G NR系统”也可以称为5G系统或者NR系统，但本领域技术人员可以理解其含义。本申请实施例描述的技术方案可以适用于5G NR系统，也可以适用于5G NR系统后续的演进系统。
由上述介绍可知，5G IIoT中需求支持工业自动化、传输自动化、智能电力等业务在5G系统的传输。基于其时延和可靠性的传输需求，IIoT引入了TSN或TSC的概念。在一个示例中，5G系统可作为TSN的Ethernet Bridge(以太连接桥)而被整合到TSN中，整合后的系统可被称为TSN通信系统。请参考图2，其示出了本申请一个实施例提供的TSN通信系统的示意图。该TSN通信系统可以包括TSN和5G系统。
5G系统中包括终端设备以及各种功能实体。在一个示例中，5G系统中包括如下几个功能实体：
RAN(Radio Access Network，无线接入网)：类似于传统网络里面的基站，部署在靠近终端设备的位置，为特定区域的授权用户提供入网功能，并能够根据用户的级别，业务的需求等使用不同质量的传输隧道传输用户数据；
UPF(User Plane Function，用户平面功能)：根据SMF(Session Management Function，会话管理功能)的路由规则执行用户数据包转发；
AUSF(Authentication Server Function，认证服务器功能)：执行UE的安全认证；
AMF(Access and Mobility Management Function，接入和移动性管理功能)：UE接入管理和移动性管理；
SMF：UE会话管理；
NSSF(Network Slice Selection Function，网络切片选择功能)：为UE选择网络切片；
NEF(Network Exposure Function，网络开放功能)：以北向API接口的方式向第三方开放网络功能；
NRF(NF Repository Function，网络功能仓储功能)：为其他网元提供网络功能实体信息的存储功能和选择功能；
UDM(Unified Data Management，统一数据管理)：用户签约上下文管理；
PCF(Policy Control Function，策略控制功能)：用户策略管理；
AF(Application Function，应用功能)：用户应用管理。
TSN中包括ES(End Station，终端站设备)和CNC(Centralized Network Controller，集中网络控制器)。其中，CNC用于对整个TSN通信系统的业务进行统一管理。
如图2所示，5G系统中的终端设备通过DS-TT(Device Side TSN Translator，设备侧TSN转换器)与5G系统外部的TSN DN(Date Network，数据网络)中的一个或多个ES相连；用户面实体通过NW-TT(Network TSN Translator，网络TSN转换器)与TSN DN中的一个或多个ES相连。其中，DS-TT和NW-TT均可提供用于数据传输的端口(Port)。
由此可见，在TSN中，5G系统将作为TSN中的逻辑交换节点(logical bridge)，为TSN以及TSN业务提供服务。因此，5G系统需要提供更低的时延保证以及更高的同步精度，以便于TSN业务在5G系统中传输时，各个逻辑交换节点针对该TSN的操作和接续精准，且符合TSN业务需要的同步精度要求。
在R17(Release 17，第17版本)中，基于TSN业务传输的需求，TSN业务在5G系统内传输时，需要满足小于900ns(nanosecond，纳秒)的同步精度需求。目前，在R16(Release 16，第16版本)关于终端设备定位的研究中，基于Rx(Receive)-Tx(Transport)Time Difference(收发时间差)的定位方法(以下简称为“基于RX-TX的定位方法”)精度很高，获取的RTT(Round-Trip Time，往返时间)可以达到几纳秒的精度。
在一个示例中，基于RX-TX的定位方法以LMF(Location Management Function，位置管理功能)为定位中心，通过LMF控制多个基站协同进行RTT的测量，其中，该多个基站包括终端设备的服务小区对应的基站，以及该服务小区对应的基站相邻的至少一个基站。请参考图3，其示出了本申请一个实施例提供的基于RX-TX的定位方法的流程图，该基于RX-TX的定位方法可以包括如下几个步骤：
步骤300，终端设备与LMF之间进行定位能力交互。示例性地，LMF向终端设备请求获取定位能力，终端设备收到LMF的请求后向LMF上报定位能力。
步骤310，LMF向多个基站发送下行参考信号(重)配置。其中，下行参考信号(重)配置包括下行参考信号测量的起始位置(或时间)、发送窗口、下行参考信号等。可选地，下行参考信号包括以下至少一项：PRS(Positioning Reference Signal，定位参考信号)、DMRS(Demodulation Reference Signal，解调参考信号)、TRS(Tracking Reference Signal，跟踪参考信号)、CSI-RS(Channel State Information Reference Signal，信道状态信息参考信号)、SRS(Sounding Reference Signal，探测参考信息)。
步骤320，LMF向多个基站发送上行参考信号(重)配置。类似于步骤310，上行参考信号(重)配 置包括上行参考信号的起始位置(或时间)、测量窗口、上行参考信号等。可选地，上行参考信号包括以下至少一项：SRS、DMRS等。
步骤330，LMF向终端设备发送下行定位测量请求。其中，下行定位测量请求用于请求终端设备对下行参考信号进行测量并上报测量结果。可选地，下行定位测量请求中包括定位辅助信息，该定位辅助信息包括Cell ID(小区ID(Identifier，标识))、参考信号配置等。其中，参考信号配置包括上行参考信号配置和/或下行参考信号配置。
步骤340，LMF向多个基站发送上行定位测量请求。其中，上行定位测量请求用于请求多个基站对上行参考信号进行测量并上报测量结果。可选地，上行定位测量请求中包括定位辅助信息，该定位辅助信息包括Cell ID、参考信号配置、测量和上报指示等。
步骤350，终端设备进行下行参考信号测量。终端设备在接收到LMF发送的下行定位测量请求后，根据下行参考信号配置，在指定的时频资源上接收下行参考信号。
步骤360，多个基站进行上行参考信号测量。多个基站在接收到LMF发送的上行定位测量请求后，根据上行参考信号配置，在指定的时频资源上接收上行参考信号。
步骤370，终端设备向LMF发送下行定位测量报告。可选地，下行定位测量报告包括收发时间差，以及收发时间差对应的小区标识。其中，下行定位测量报告中包括的收发时间差是针对同一个基站或同一个小区所对应的下行参考信号的接收时间和上行参考信号的发送时间之间的时间差。
步骤380，多个基站向LMF发送上行定位测量报告。可选地，上行定位测量报告包括收发时间差，以及收发时间差对应的小区标识。其中，上行定位测量报告中包括的收发时间差是针对终端设备的上行参考信号的接收时间和下行参考信号的发送时间之间的时间差。
步骤390，LMF进行RTT计算。由于多个基站的位置是已知的，通过测量的收发时间差就可以计算RTT，从而计算终端设备到各个基站或小区的距离，多个基站可以确定终端设备在空间上的唯一位置，进而实现对终端设备的精确定位。
为了确保5G系统实现更高的同步精度，本申请实施例提出将基于RX-TX的定位方法的思路应用于终端设备与网络设备之间的精准同步，为实现精准同步，需要对终端设备与网络设备之间的传输时延进行补偿。然而，相关技术中并没有针对传输时延的获取以及补偿的方法。另外，由上述示例可知，基于RX-TX的定位方法中，LMF在终端设备以及参与定位的多个基站之间配置上下行参考信号，并且计算RTT，以实现对终端设备的精确定位，然而，正是由于RTT是由LMF计算的，终端设备与多个基站并不感知RTT，进而也就无法根据RTT执行其它的操作，如根据RTT进行传输时延补偿等。
基于此，本申请实施例提出了一种传输时延的补偿方法，通过网络设备为终端设备配置用于传输时延补偿的参考信号，进而终端设备和网络设备可以基于参考信号的收发确定信号传输时延，或者确定传输时延补偿时补偿的传输时延，以进一步实现对终端设备与网络设备之间传输的信号的传输时延进行补偿，提供了一种传输时延的补偿方法，确保了终端设备与网络设备之间的精准同步。
下面，结合几个示例对本申请的技术方案进行介绍说明。
请参考图4，其示出了本申请一个实施例提供的传输时延的补偿方法的流程图。该方法可应用于图1所示的系统架构中。该方法可以包括如下几个步骤：
步骤410，网络设备向终端设备发送信号配置信息，信号配置信息用于配置终端设备与网络设备之间用于传输时延补偿的参考信号；其中，参考信号包括：上行参考信号和/或下行参考信号。
由上述介绍可知，为实现终端设备与网络设备的精准同步，需要对终端设备与网络设备之间传输的信号的传输时延进行补偿。因此，在传输时延补偿过程中，需要先确定终端设备与网络设备之间的信号传输时延或传输时延补偿时补偿的传输时延。基于此，网络设备可以向终端设备发送信号配置信息，以配置参考信号，进而根据参考信号的收发时刻等确定信号传输时延或传输时延补偿时补偿的传输时延。
可选地，网络设备为终端设备的服务小区对应的网络设备，例如，网络设备包括部署在接入网中为终端设备提供无线通信功能的接入网设备(如gNB等)。可选地，终端设备满足以下至少一个条件：具备高精度的传输需求、支持传输TSN业务、支持传输gPTP(general Precise Time Protocol，通用精确时间协议)消息。因此，本申请实施例中，具备高精度的传输需求/支持传输TSN业务/支持传输gPTP消息的终端设备的服务小区对应的网络设备，可以向该终端设备发送信号配置信息，以配置参考信号。
其中，参考信号包括上行参考信号和/或下行参考信号。一方面，网络设备在为终端设备配置参考信号后，可以向终端设备发送下行参考信号；另一方面，终端设备在接收到网络设备的信号配置信息后，可以向网络设备发送上行参考信号。本申请实施例对上行参考信号和下行参考信号的具体信号类型不作限定，可选地，上行参考信号包括以下至少一项：SRS、前导码(preamble)、DMRS、PRS、TRS、CSI-RS；可选地，下行参考信号包括以下至少一项：PRS、CSI-RS、SSB(SS(Synchronization Signals，同步信号)/PBCH(Physical Broadcast Channel，物理广播信道)Blocks，同步信号块)、CRS(Cell Reference Signal，小区参 考信号)、DMRS、TRS。可选地，上行参考信号和下行参考信号为相同的信号类型，例如，上行参考信号和下行参考信号均为DMRS；或者，上行参考信号和下行参考信号为不同的信号类型，例如，上行参考信号为SRS，下行参考信号为PRS。
为提升确定传输时延的准确性，本申请实施例中，网络设备和终端设备之间可以进行多次参考信号的收发过程，以测量多组参考信号的收发时刻等。基于此，本申请实施例中，网络设备可以为终端设备配置多个参考信号，例如，为终端设备配置多个上行参考信号和多个下行参考信号。可选地，信号配置信息还包括：上行参考信号与下行参考信号之间的绑定关系(或称为“对应关系”)，也即，网络设备在为终端设备配置参考信号时，进一步配置上行参考信号和下行参考信号之间的绑定关系，从而一方面，终端设备在接收到下行参考信号时，可以明确RX-TX Time Difference是根据该下行参考信号的接收时刻和哪一个上行参考信号的发送时刻来确定；另一方面，网络设备在接收到上行参考信号时，也可以明确RX-TX Time Difference是根据该上行参考信号的接收时刻和哪一个下行参考信号的发送时刻来确定。
本申请实施例对上述绑定关系的表现形式不作限定，该绑定关系可以是显式指示的，也可以是隐式指示的。可选地，上述信号配置信息中包括上行参考信号的索引(index)与下行参考信号的索引之间的绑定关系，如SRS index和PRS index之间的绑定关系；或者，上述信号配置信息中包括具有绑定关系的上行参考信号和下行参考信号之间的时间间隔(或称为“距离”)，如上行参考信号的发送时刻和下行参考信号的发送时刻之间的间隔、参考信号的位图(bitmap)、特定位置的上行参考信号和下行参考信号的映射索引(mapping index)。
在一个示例中，终端设备在接收到信号配置信息后，与网络设备之间进行参考信号的收发。示例性地，网络设备向终端设备发送下行参考信号、接收来自于终端设备的上行参考信号；终端设备向网络设备发送上行参考信号、接收来自于网络设备的下行参考信号。本申请实施例对网络设备与终端设备进行参考信号的收发的时刻不作限定，可选地，网络设备在发送信号配置信息后，或者发送信号配置信息后的一段时长后，与终端设备进行参考信号的收发；或者，网络设备在接收到来自于终端设备的上行参考信号时，或者接收到来自于终端设备的上行参考信号之后，与终端设备进行参考信号的收发。
综上所述，本申请实施例提供的技术方案，通过网络设备为终端设备配置用于传输时延补偿的参考信号，进而终端设备和网络设备可以基于参考信号的收发确定信号传输时延，或者确定传输时延补偿时补偿的传输时延，以进一步实现对终端设备与网络设备之间传输的信号的传输时延进行补偿，提供了一种传输时延的补偿方法，确保了终端设备与网络设备之间的精准同步。并且，本申请实施例提供的技术方案可以应用于5G系统中，由于对5G系统中的终端设备与网络设备之间的传输时延进行了补偿，确保5G系统具备更高的同步精度，从而使得5G系统满足TSN业务需要达到的同步精度要求。
另外，本申请实施例提供了多种参考信号的信号类型，丰富了参考信号的信号类型，实现了网络设备自主、灵活地进行参考信号的配置。此外，本申请实施例中，参考信号包括上行参考信号和/或下行参考信号，网络设备还为终端设备配置了上行参考信号和下行参考信号之间的绑定关系，进而终端设备和网络设备可以分别明确收发时间差的确定依据，针对终端设备，其可以明确收发时间差是哪一个上行参考信号的发送时刻和哪一个下行参考信号的接收时刻之间的时间差；针对网络设备，其可以明确收发时间差是哪一个下行参考信号的发送时刻和哪一个上行参考信号的接收时刻之间的时间差，确保了确定收发时间差的准确性，从而提升确定传输时延的准确性。
本申请实施例中，终端设备与网络设备之间的信号传输时延或传输时延补偿时补偿的传输时延，既可以由终端设备确定(终端设备为计算实体)，也可以由网络设备确定(网络设备为计算实体)。下面针对这两种情况，分别进行介绍说明。
在一个示例中，如图5所示，上述方法还包括如下几个步骤：
步骤422，终端设备向网络设备发送第一时延参考信息。
在网络设备作为计算实体的情况下，为确保网络设备计算的信号传输时延或需补偿的传输时延的准确性，终端设备可以向网络设备发送第一时延参考信息，该第一时延参考信息可用于为网络设备计算信号传输时延或需补偿的传输时延提供参考。
第一时延参考信息由终端设备对参考信号进行测量得到，如测量上行参考信号的发送时刻、下行参考信号的接收时刻等。基于此，在一个示例中，第一时延参考信息包括以下至少一项：下行参考信号的接收时刻、上行参考信号的发送时刻、下行参考信号的接收时刻与上行参考信号的发送时刻之间的时间差、下行参考信号的索引、上行参考信号的索引、下行参考信号与上行参考信号之间的映射索引。可选地，终端设备在测量收发时间差时，是测量具备绑定关系的上下行参考信号之间的收发时间差，如测量某一下行参考信号的接收时刻，以及与该下行参考信号之间具有绑定关系的上行参考信号的发送时刻之间的时间差。可选地，与收发时间差类似，终端设备在测量映射索引时，是测量具备绑定关系的上下行参考信号之间的映射索引。
本申请实施例对终端设备发送第一时延参考信息的时刻不作限定，可选地，上述步骤422包括：终端设备在第一时刻向网络设备发送第一时延参考信息；其中，第一时刻包括以下任意一项：下行参考信号的接收时刻、下行参考信号的接收时刻之后的时刻、上行参考信号的发送时刻、上行参考信号的发送时刻之后的时刻、第二时刻、第二时刻之后的时刻。其中，第二时刻为确定下行参考信号的接收时刻与上行参考信号的发送时刻之间的时间差的时刻。可选地，第二时刻为终端设备确定一组具备绑定关系的上下行参考信号之间的收发时间差的时刻。可选地，终端设备周期性地向网络设备发送第一时延参考信息，在周期性发送第一时延参考信息时，每一次终端设备发送的第一时延参考信息的内容可以相同，也可以不同。例如，终端设备第一次发送的第一时延参考信息中包括第一上行参考信号与第一下行参考信号之间的收发时间差，终端设备第二次发送的第一时延参考信息中包括第二上行参考信号与第二下行参考信号之间的收发时间差。其中，第一上行参考信号与第一下行参考信号之间的收发时间差的取值，和第二上行参考信号与第二下行参考信号之间的收发时间差的取值可以相同，也可以不同。可选地，在存在多组上下行参考信号时，第一上行参考信号与第一下行参考信号和第二上行参考信号与第二下行参考信号可以相同，也可以不同。又例如，终端设备第一次发送的第一时延参考信息中包括一组上下行参考信号之间的收发时间差，终端设备第二次发送的第一时延参考信息中包括两组上下行参考信号之间的收发时间差。可选的，在连续的收发时间差相同的情况下，终端设备也可以不上报上下行参考信号之间的收发时间差，或者只上报一组上下行参考信号之间的收发时间差。
步骤424，网络设备根据第一时延参考信息，确定终端设备与网络设备之间的信号传输时延，或者传输时延补偿时补偿的传输时延。
网络设备在接收第一时延参考信息后，即可根据该第一时延参考信息确定信号传输时延或需补偿的传输时延。由于网络设备自身也会对参考信号进行测量，可选地，网络设备可以结合第一时延参考信息，以及网络设备对参考信号的测量结果，来确定信号传输时延或需补偿的传输时延，从而提升时延确定结果的准确性。
本申请实施例中，由于网络设备或终端设备在传输上下行参考信号时可能进行了一部分时延补偿，从而网络设备根据第一时延参考信息计算出的可能不是传输的信号的实际传输时延，而是传输时延补偿时实际需要补偿的传输时延。又或者，网络设备根据第一时延参考信息计算出传输时延的函数，该传输时延的函数才是传输时延补偿时实际需要补偿的传输时延。因此，本申请实施例中，网络设备根据第一时延参考信息，一种情况下确定的是终端设备与网络设备之间的信号传输时延，可选地，该信号传输时延包括以下至少一项：RTT、RX-TX Time Difference；另一种情况下确定的是传输时延补偿时补偿的传输时延。
在另一个示例中，如图5所示，上述方法还包括如下几个步骤：
步骤421，网络设备向终端设备发送第二时延参考信息。
在终端设备作为计算实体的情况下，为确保终端设备计算的信号传输时延或需补偿的传输时延的准确性，网络设备可以向终端设备发送第二时延参考信息，该第二时延参考信息可用于为终端设备计算信号传输时延或需补偿的传输时延提供参考。
第二时延参考信息由网络设备对参考信号进行测量得到，如测量上行参考信号的接收时刻、下行参考信号的发送时刻等。基于此，在一个示例中，第二时延参考信息包括以下至少一项：下行参考信号的发送时刻、上行参考信号的接收时刻、下行参考信号的发送时刻与上行参考信号的接收时刻之间的时间差、下行参考信号的索引、上行参考信号的索引、下行参考信号与上行参考信号之间的映射索引。可选地，网络设备在测量收发时间差时，是测量具备绑定关系的上下行参考信号之间的收发时间差，如测量某一上行参考信号的接收时刻，以及与该上行参考信号之间具有绑定关系的下行参考信号的发送时刻之间的时间差。可选地，与收发时间差类似，终端设备在测量映射索引时，是测量具备绑定关系的上下行参考信号之间的映射索引。
本申请实施例对网络设备发送第二时延参考信息的时刻不作限定，可选地，上述步骤421包括：网络设备在第三时刻向终端设备发送第二时延参考信息；其中，第三时刻包括以下任意一项：下行参考信号的发送时刻、下行参考信号的发送时刻之后的时刻、上行参考信号的接收时刻、上行参考信号的接收时刻之后的时刻、第四时刻、第四时刻之后的时刻。其中，第四时刻为确定下行参考信号的发送时刻与上行参考信号的接收时刻之间的时间差的时刻。可选地，第四时刻为网络设备确定一组具备绑定关系的上下行参考信号之间的收发时间差的时刻。可选地，网络设备周期性地向终端设备发送第二时延参考信息，在周期性发送第二时延参考信息时，每一次网络设备发送的第二时延参考信息的内容可以相同，也可以不同。例如，网络设备第一次发送的第二时延参考信息中包括第一上行参考信号与第一下行参考信号之间的收发时间差，网络设备第二次发送的第二时延参考信息中包括第二上行参考信号与第二下行参考信号之间的收发时间差。其中，第一上行参考信号与第一下行参考信号之间的收发时间差的取值，和第二上行参考信号与第二下行参考信号之间的收发时间差的取值可以相同，也可以不同。可选地，在存在多组上下行参考信号时，第一上行参考信号与第一下行参考信号和第二上行参考信号与第二下行参考信号可以相同，也可以不同。 例如，网络设备第一次发送的第二时延参考信息中包括一组上下行参考信号之间的收发时间差，网络设备第二次发送的第二时延参考信息中包括两组上下行参考信号之间的收发时间差。可选的，在连续的收发时间差相同的情况下，网络设备也可以不上报上下行参考信号之间的收发时间差，或者只上报一组上下行参考信号之间的收发时间差。
步骤423，终端设备根据第二时延参考信息，确定终端设备与网络设备之间的信号传输时延，或者传输时延补偿时补偿的传输时延。
终端设备在接收第二时延参考信息后，即可根据该第二时延参考信息确定信号传输时延或需补偿的传输时延。由于终端设备自身也会对参考信号进行测量，可选地，终端设备可以结合第二时延参考信息，以及终端设备对参考信号的测量结果，来确定信号传输时延或需补偿的传输时延，从而提升时延确定结果的准确性。
本申请实施例中，由于网络设备或终端设备在传输上下行参考信号时可能进行了一部分时延补偿，从而终端设备根据第一时延参考信息计算出的可能不是传输的信号的实际传输时延，而是传输时延补偿时实际需要补偿的传输时延。又或者，终端设备根据第一时延参考信息计算出传输时延的函数，该传输时延的函数才是传输时延补偿时实际需要补偿的传输时延。因此，本申请实施例中，终端设备根据第二时延参考信息，一种情况下确定的是终端设备与网络设备之间的信号传输时延，可选地，该信号传输时延包括以下至少一项：RTT、传输时延(RTT的二分之一)；另一种情况下确定的是传输时延补偿时补偿的传输时延。
在一个示例中，上述信号配置信息还包括：计算实体指示信息。该计算实体指示信息用于指示确定信号传输时延或需补偿的传输时延的实体。本申请实施例对计算实体指示信息的确定方式不作限定，该计算实体指示信息可以显式指示计算实体，也可以隐式指示计算实体，可选地，计算实体指示信息包括终端设备或网络设备，例如，计算实体指示信息包括终端设备，则由终端设备作为计算实体；或者，计算实体指示信息包括：终端设备向网络设备发送第一时延参考信息，或网络设备向终端设备发送第二时延参考信息，例如，计算实体指示信息包括终端设备向网络设备发送第一时延参考信息，则由网络设备作为计算实体；或者，计算实体指示信息包括：网络设备接收第一时延参考信息，或终端设备接收第二时延参考信息，例如，计算实体指示信息包括终端设备接收第二时延参考信息，则由终端设备作为计算实体。在另一个示例中，计算实体由网络设备向终端设备发送专用信令进行指示，如RRC(Radio Resource Control，无线资源控制)信令，该专用信令指示计算实体的方式可以参见计算实体指示信息指示计算实体的方式，此处不多赘述。在又一个示例中，计算实体由通信协议预定义，有关通信协议定义计算实体的方式可以参见计算实体指示信息指示计算实体的方式，此处不多赘述。
综上所述，本申请实施例提供的技术方案，通过网络设备和终端设备对参考信号进行测量，然后根据测量结果确定信号传输时延或需补偿的传输时延，从而为执行传输时延补偿提供依据。本申请实施例中，信号传输时延或需补偿的传输时延既可以由终端设备确定，也可以由网络设备确定，提升了时延确定的灵活性，有助于根据实际需求自主灵活选择时延确定主题，例如，在终端设备的可用计算资源较少的情况下，为不增加终端设备的处理开销，可以由网络设备来确定传输时延。
在确定信号传输时延或需补偿的传输时延之后，既可以由终端设备执行传输时延补偿(终端设备为补偿主体)，也可以由网络设备执行传输时延补偿(网络设备为补偿主体)。
下面针对这两种情况，分别进行介绍说明。
在一个示例中，如图6所示，上述方法还包括步骤432：终端设备根据补偿主体信息，执行传输时延补偿。
根据补偿主体信息确定终端设备为补偿主体时，由终端设备执行传输时延补偿，例如，终端设备将信号的预计传输时刻减去信号传输时延或需补偿的传输时延，得到信号的实际传输时刻，并按照实际传输时刻确定时间、或进行同步、或传输信号，以达到传输时延补偿、进行同步的目的。
补偿主体信息用于指示执行传输时延补偿的主体。本申请实施例对补偿主体信息的承载方式不作限定，可选地，补偿主体信息包括以下至少一项：来自于网络设备的主体指示信息、来自于网络设备的主体配置信息、通信协议预定义的补偿主体信息。在补偿主体信息包括主体指示信息时，主体指示信息可以承载于专用信令中，也即，网络设备可以通过专用信令(如RRC信令)向终端设备指示补偿主体。在补偿主体信息包括主体配置信息时，网络设备可以为终端设备配置补偿主体。在补偿主体信息包括通信协议预定义的补偿主体信息时，补偿主体由通信协议预定义。本申请实施例对补偿主体信息的指示方式不作限定，该补偿主体信息可以显式指示补偿主体，也可以隐式指示补偿主体。可选地，补偿主体信息包括：终端设备是否执行传输时延补偿，或者网络设备是否执行传输时延补偿。例如，在补偿主体信息包括终端设备执行传输时延补偿的情况下，由终端设备作为补偿主体，网络设备向终端设备发送第二时延参考信息。又例如，在补偿主体信息包括网络设备不执行传输时延补偿的情况下，由终端设备作为补偿主体，网络设备向终端设备发送第二时延参考信息。
在确定补偿主体为终端设备后，本申请实施例对终端设备执行传输时延补偿的时机不作限定，可选地，在计算实体为终端设备的情况下，终端设备在确定出信号传输时延或需补偿的信号传输时延时，执行传输时延补偿；或者，在计算实体为终端设备的情况下，终端设备在获取来自网络设备的时间信息的情况下，执行传输时延补偿；或者，在计算实体为网络设备的情况下，终端设备在接收到网络设备确定出的信号传输时延或需补偿的传输时延的情况下，执行传输时延补偿；或者，在计算实体为网络设备的情况下，终端设备在接收到网络设备确定出的信号传输时延或需补偿的传输时延和时间信息的情况下，执行传输时延补偿；或者，终端设备在满足执行条件时执行传输时延补偿。其中，执行条件包括以下至少一项：获取到信号传输时延或需补偿的传输时延、接收到网络设备不执行传输时延补偿的指示信息、接收到终端设备执行传输时延补偿的指示信息、终端设备和网络设备之间的距离大于或等于第一门限值、终端设备的服务小区的ISD(服务小区的中心点至边缘的距离)大于或等于第二门限值、信号传输时延或需补偿的信号传输时延大于或等于第三门限值。可选地，终端设备实际计算出的信号传输时延，与获取的NW的同步时间(如SFN(System Frame Number，系统帧号))之间的时间差，或者与获取NW信息之间的时间差，小于或等于第四门限值。
在另一个示例中，如图6所示，上述方法还包括步骤431：网络设备根据补偿主体信息，执行传输时延补偿。
根据补偿主体信息确定网络设备为补偿主体时，由网络设备执行传输时延补偿，例如，网络设备将信号的预计传输时刻减去信号传输时延或需补偿的传输时延，得到信号的实际传输时刻，并按照实际传输时刻指示对应的时间信息，如对应参考SFN的实际时间，以达到传输时延补偿、进行同步的目的。
补偿主体信息用于指示执行传输时延补偿的主体。本申请实施例对补偿主体信息的承载方式不作限定，可选地，补偿主体信息包括以下至少一项：网络设备的主体指示信息、网络设备的主体配置信息、通信协议预定义的补偿主体信息。在补偿主体信息包括主体指示信息时，主体指示信息可以承载于专用信令中，也即，网络设备可以通过专用信令(如RRC信令)向终端设备指示补偿主体。在补偿主体信息包括主体配置信息时，网络设备可以为终端设备配置补偿主体。在补偿主体信息包括通信协议预定义的补偿主体信息时，补偿主体由通信协议预定义。本申请实施例对补偿主体信息的指示方式不作限定，该补偿主体信息可以显式指示补偿主体，也可以隐式指示补偿主体。可选地，补偿主体信息包括：终端设备是否执行传输时延补偿，或者网络设备是否执行传输时延补偿。例如，在补偿主体信息包括网络设备执行传输时延补偿的情况下，由网络设备作为补偿主体，终端设备向网络设备发送第一时延参考信息。又例如，在补偿主体信息包括终端设备不执行传输时延补偿的情况下，由网络设备作为补偿主体，终端设备向网络设备发送第一时延参考信息。
在确定补偿主体为网络设备后，本申请实施例对网络设备执行传输时延补偿的时机不作限定，可选地，在计算实体为网络设备的情况下，网络设备在确定出信号传输时延或需补偿的信号传输时延时，执行传输时延补偿；或者，在计算实体为网络设备的情况下，网络设备在获取来自终端设备的时间信息的情况下，执行传输时延补偿；或者，在计算实体为终端设备的情况下，网络设备在接收到终端设备确定出的信号传输时延或需补偿的传输时延的情况下，执行传输时延补偿；或者，在计算实体为终端设备的情况下，网络设备在接收到终端设备确定出的信号传输时延或需补偿的传输时延和时间信息的情况下，执行传输时延补偿；或者，网络设备在满足执行条件时执行传输时延补偿。其中，执行条件包括以下至少一项：获取到信号传输时延或需补偿的传输时延、终端设备和网络设备之间的距离大于或等于第一门限值、终端设备的服务小区的ISD(服务小区的中心点至边缘的距离)大于或等于第二门限值、信号传输时延或需补偿的信号传输时延大于或等于第三门限值。可选地，网络设备实际计算出的信号传输时延，与获取的NW的同步时间(如SFN)之间的时间差，或者与获取NW信息之间的时间差，小于或等于第四门限值。
在一个示例中，计算实体和补偿主体相同，如计算实体和补偿主体均为终端设备，或均为网络设备，通过由相同的设备计算信号传输时延或需补偿的传输时延，并执行传输时延补偿，可以避免终端设备与网络设备之间进行过多的信息往来；或者，计算实体和补偿主体不相同，如计算实体为终端设备，补偿主体为网络设备，通过由一个设备来计算信号传输时延或需补偿的传输时延，由另一个设备来执行传输时延补偿，有助于分散和平衡处理开销。
综上所述，本申请实施例提供的技术方案，通过补偿主体信息确定传输时延补偿的补偿主体，该补偿主体可以由网络设备通过专用信令向终端设备指示，也可以由网络设备通过配置信息为终端设备配置，还可以由通信协议预定义，从而丰富了补偿主体的确定方式，提升了补偿主体选择的灵活性。
下面以两个示例对本申请的技术方案进行介绍说明。
请参考图7，其示出了本申请一个实施例提供的传输时延的补偿方法的流程图。该方法可应用于图1所示的系统架构中。该方法可以包括如下几个步骤：
步骤710，网络设备向终端设备发送信号配置信息。信号配置信息用于配置终端设备与网络设备之间 用于传输时延补偿的参考信号；其中，参考信号包括：上行参考信号和/或下行参考信号。
步骤720，网络设备向终端设备发送下行参考信号。可选地，下行参考信号包括以下至少一项：PRS、CSI-RS、SSB、CRS、DMRS、TRS。
步骤730，终端设备向网络设备发送上行参考信号。可选地，上行参考信号包括以下至少一项：SRS、前导码、DMRS、PRS、TRS、CSI-RS。
需要说明的一点是，本申请实施例对步骤720与步骤730的执行先后顺序不作限定，可选地，步骤720与步骤730同时执行，或者步骤720在步骤730之后执行，或者步骤720在步骤730之前执行。需要说明的另一点是，本申请实施例对步骤720和步骤730的执行次数不作限定，可选地，步骤720和步骤730均为周期性执行。
步骤740，终端设备和网络设备分别进行参考信号测量。可选地，参考信号测量包括测量上下行参考信号的收发时间差，例如，针对终端设备而言，参考信号测量包括测量上行参考信号的发送时刻与下行参考信号的接收时刻之间的时间差。
步骤750，终端设备向网络设备发送第一时延参考信息。可选地，第一时延参考信息包括以下至少一项：下行参考信号的接收时刻、上行参考信号的发送时刻、下行参考信号的接收时刻与上行参考信号的发送时刻之间的时间差、下行参考信号的索引、上行参考信号的索引、下行参考信号与上行参考信号之间的映射索引。
步骤760，网络设备确定信号传输时延或传输时延补偿时补偿的传输时延。可选地，网络设备结合终端设备发送的第一时延参考信息，以及网络设备对参考信号的测量结果，确定信号传输时延或传输时延补偿时补偿的传输时延。
步骤770，网络设备向终端设备发送信号传输时延或传输时延补偿时补偿的传输时延。
步骤780，终端设备执行传输时延补偿。例如，终端设备将信号的预计传输时刻减去信号传输时延或需补偿的传输时延，得到信号的实际传输时刻，并按照实际传输时刻传输信号，以达到传输时延补偿的目的。
请参考图8，其示出了本申请一个实施例提供的传输时延的补偿方法的流程图。该方法可应用于图1所示的系统架构中。该方法可以包括如下几个步骤：
步骤810，网络设备向终端设备发送信号配置信息。信号配置信息用于配置终端设备与网络设备之间用于传输时延补偿的参考信号；其中，参考信号包括：上行参考信号和/或下行参考信号。
步骤820，网络设备向终端设备发送下行参考信号。可选地，下行参考信号包括以下至少一项：PRS、CSI-RS、SSB、CRS、DMRS、TRS。
步骤830，终端设备向网络设备发送上行参考信号。可选地，上行参考信号包括以下至少一项：SRS、前导码、DMRS、PRS、TRS、CSI-RS。
需要说明的一点是，本申请实施例对步骤820与步骤830的执行先后顺序不作限定，可选地，步骤820与步骤830同时执行，或者步骤820在步骤830之后执行，或者步骤820在步骤830之前执行。需要说明的另一点是，本申请实施例对步骤820和步骤830的执行次数不作限定，可选地，步骤820和步骤830均为周期性执行。
步骤840，终端设备和网络设备分别进行参考信号测量。可选地，参考信号测量包括测量上下行参考信号的收发时间差，例如，针对网络设备而言，参考信号测量包括测量上行参考信号的接收时刻与下行参考信号的发送时刻之间的时间差。
步骤850，网络设备向终端设备发送第二时延参考信息。可选地，第二时延参考信息包括以下至少一项：下行参考信号的发送时刻、上行参考信号的接收时刻、下行参考信号的发送时刻与上行参考信号的接收时刻之间的时间差、下行参考信号的索引、上行参考信号的索引、下行参考信号与上行参考信号之间的映射索引。
步骤860，终端设备确定信号传输时延或传输时延补偿时补偿的传输时延。可选地，终端设备结合网络设备发送的第二时延参考信息，以及终端设备对参考信号的测量结果，确定信号传输时延或传输时延补偿时补偿的传输时延。
步骤870，终端设备执行传输时延补偿。例如，终端设备将信号的预计传输时刻减去信号传输时延或需补偿的传输时延，得到信号的实际传输时刻，并按照实际传输时刻传输信号，以达到传输时延补偿的目的。
需要说明的一点是，在上述方法实施例中，主要从终端设备和网络设备之间交互的角度，对本申请提供的传输时延的补偿方法进行了介绍说明。上述有关终端设备执行的步骤，可以单独实现成为终端设备侧传输时延的补偿方法；上述有关网络设备执行的步骤，可以单独实现成为网络设备侧传输时延的补偿方法。
下述为本申请装置实施例，可以用于执行本申请方法实施例。对于本申请装置实施例中未披露的细节，请参照本申请方法实施例。
请参考图9，其示出了本申请一个实施例提供的传输时延的补偿装置的框图。该装置具有实现上述终端设备侧方法示例的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该装置可以是上文所述的终端设备，也可以设置在终端设备中。如图9所示，该装置900可以包括：配置信息接收模块910。
配置信息接收模块910，用于接收来自于网络设备的信号配置信息，所述信号配置信息用于配置所述终端设备与所述网络设备之间用于传输时延补偿的参考信号；其中，所述参考信号包括：上行参考信号和/或下行参考信号。
在一个示例中，所述上行参考信号包括以下至少一项：SRS、前导码、DMRS。
在一个示例中，所述下行参考信号包括以下至少一项：PRS、CSI-RS、SSB、CRS、DMRS、TRS。
在一个示例中，所述信号配置信息还包括：所述上行参考信号与所述下行参考信号之间的绑定关系。
在一个示例中，如图10所示，所述装置900还包括：第一信息发送模块922，用于向所述网络设备发送第一时延参考信息，所述第一时延参考信息用于确定所述终端设备与所述网络设备之间的信号传输时延，或者所述传输时延补偿时补偿的传输时延。
在一个示例中，所述第一时延参考信息包括以下至少一项：所述下行参考信号的接收时刻、所述上行参考信号的发送时刻、所述下行参考信号的接收时刻与所述上行参考信号的发送时刻之间的时间差、所述下行参考信号的索引、所述上行参考信号的索引、所述下行参考信号与所述上行参考信号之间的映射索引。
在一个示例中，如图10所示，所述第一信息发送模块922，用于：在第一时刻向所述网络设备发送所述第一时延参考信息；其中，所述第一时刻包括以下任意一项：所述下行参考信号的接收时刻、所述下行参考信号的接收时刻之后的时刻、所述上行参考信号的发送时刻、所述上行参考信号的发送时刻之后的时刻、第二时刻、所述第二时刻之后的时刻；所述第二时刻为确定所述下行参考信号的接收时刻与所述上行参考信号的发送时刻之间的时间差的时刻。
在一个示例中，所述终端设备周期性地向所述网络设备发送所述第一时延参考信息。
在一个示例中，如图10所示，所述装置900还包括：第二信息接收模块921，用于接收来自于所述网络设备的第二时延参考信息；传输时延确定模块923，用于根据所述第二时延参考信息，确定所述终端设备与所述网络设备之间的信号传输时延，或者所述传输时延补偿时补偿的传输时延。
在一个示例中，所述第二时延参考信息包括以下至少一项：所述下行参考信号的发送时刻、所述上行参考信号的接收时刻、所述下行参考信号的发送时刻与所述上行参考信号的接收时刻之间的时间差、所述下行参考信号的索引、所述上行参考信号的索引、所述下行参考信号与所述上行参考信号之间的映射索引。
在一个示例中，如图10所示，所述装置还包括：传输时延补偿模块930，用于根据补偿主体信息，执行所述传输时延补偿。
在一个示例中，所述补偿主体信息包括以下至少一项：来自于所述网络设备的主体指示信息、来自于所述网络设备的主体配置信息、通信协议预定义的补偿主体信息。
在一个示例中，所述网络设备为所述终端设备的服务小区对应的网络设备。
在一个示例中，所述终端设备满足以下至少一个条件：具备高精度的传输需求、支持传输TSN业务、支持传输gPTP消息。
综上所述，本申请实施例提供的技术方案，通过网络设备为终端设备配置用于传输时延补偿的参考信号，进而终端设备和网络设备可以基于参考信号的收发确定信号传输时延，或者确定传输时延补偿时补偿的传输时延，以进一步实现对终端设备与网络设备之间传输的信号的传输时延进行补偿，提供了一种传输时延的补偿方法，确保了终端设备与网络设备之间的精准同步。并且，本申请实施例提供的技术方案可以应用于5G系统中，由于对5G系统中的终端设备与网络设备之间的传输时延进行了补偿，确保5G系统具备更高的同步精度，从而使得5G系统满足TSN业务需要达到的同步精度要求。
请参考图11，其示出了本申请一个实施例提供的传输时延的补偿装置的框图。该装置具有实现上述网络设备侧方法示例的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该装置可以是上文所述的网络设备，也可以设置在网络设备中。如图11所示，该装置1100可以包括：配置信息发送模块1110。
配置信息发送模块1110，用于向终端设备发送信号配置信息，所述信号配置信息用于配置所述终端设备与所述网络设备之间用于传输时延补偿的参考信号；其中，所述参考信号包括：上行参考信号和/或下行参考信号。
在一个示例中，所述上行参考信号包括以下至少一项：SRS、前导码、DMRS。
在一个示例中，所述下行参考信号包括以下至少一项：PRS、CSI-RS、SSB、CRS、DMRS、TRS。
在一个示例中，所述信号配置信息还包括：所述上行参考信号与所述下行参考信号之间的绑定关系。
在一个示例中，如图12所示，所述装置1100还包括：第一信息接收模块1122，用于接收来自于所述终端设备的第一时延参考信息；传输时延确定模块1124，用于根据所述第一时延参考信息，确定所述终端设备与所述网络设备之间的信号传输时延，或者所述传输时延补偿时补偿的传输时延。
在一个示例中，所述第一时延参考信息包括以下至少一项：所述下行参考信号的接收时刻、所述上行参考信号的发送时刻、所述下行参考信号的接收时刻与所述上行参考信号的发送时刻之间的时间差、所述下行参考信号的索引、所述上行参考信号的索引、所述下行参考信号与所述上行参考信号之间的映射索引。
在一个示例中，如图12所示，所述装置1100还包括：第二信息发送模块1121，用于向所述终端设备发送第二时延参考信息，所述第二时延参考信息用于确定所述终端设备与所述网络设备之间的信号传输时延，或者所述传输时延补偿时补偿的传输时延。
在一个示例中，所述第二时延参考信息包括以下至少一项：所述下行参考信号的发送时刻、所述上行参考信号的接收时刻、所述下行参考信号的发送时刻与所述上行参考信号的接收时刻之间的时间差、所述下行参考信号的索引、所述上行参考信号的索引、所述下行参考信号与所述上行参考信号之间的映射索引。
在一个示例中，如图12所示，所述第二信息发送模块1121，用于：在第三时刻向所述终端设备发送所述第二时延参考信息；其中，所述第三时刻包括以下任意一项：所述下行参考信号的发送时刻、所述下行参考信号的发送时刻之后的时刻、所述上行参考信号的接收时刻、所述上行参考信号的接收时刻之后的时刻、第四时刻、所述第四时刻之后的时刻；所述第四时刻为确定所述下行参考信号的发送时刻与所述上行参考信号的接收时刻之间的时间差的时刻。
在一个示例中，所述网络设备周期性地向所述终端设备发送所述第二时延参考信息。
在一个示例中，如图12所示，所述装置1100还包括：传输时延补偿模块1130，用于根据补偿主体信息，执行所述传输时延补偿。
在一个示例中，所述补偿主体信息包括以下至少一项：所述网络设备的主体指示信息、所述网络设备的主体配置信息、通信协议预定义的补偿主体信息。
在一个示例中，所述网络设备为所述终端设备的服务小区对应的网络设备。
在一个示例中，所述终端设备满足以下至少一个条件：具备高精度的传输需求、支持传输TSN业务、支持传输gPTP消息。
综上所述，本申请实施例提供的技术方案，通过网络设备为终端设备配置用于传输时延补偿的参考信号，进而终端设备和网络设备可以基于参考信号的收发确定信号传输时延，或者确定传输时延补偿时补偿的传输时延，以进一步实现对终端设备与网络设备之间传输的信号的传输时延进行补偿，提供了一种传输时延的补偿方法，确保了终端设备与网络设备之间的精准同步。并且，本申请实施例提供的技术方案可以应用于5G系统中，由于对5G系统中的终端设备与网络设备之间的传输时延进行了补偿，确保5G系统具备更高的同步精度，从而使得5G系统满足TSN业务需要达到的同步精度要求。
需要说明的一点是，上述实施例提供的装置在实现其功能时，仅以上述各个功能模块的划分进行举例说明，实际应用中，可以根据实际需要而将上述功能分配由不同的功能模块完成，即将设备的内容结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
请参考图13，其示出了本申请一个实施例提供的终端设备130的结构示意图，例如，该终端设备可以用于执行上述终端设备侧传输时延的补偿方法。具体来讲，该终端设备130可以包括：处理器131，以及与所述处理器131相连的收发器132；其中：
处理器131包括一个或者一个以上处理核心，处理器131通过运行软件程序以及模块，从而执行各种功能应用以及信息处理。
收发器132包括接收器和发射器。可选地，收发器132是一块通信芯片。
在一个示例中，终端设备130还包括：存储器和总线。存储器通过总线与处理器相连。存储器可用于存储计算机程序，处理器用于执行该计算机程序，以实现上述方法实施例中的终端设备执行的各个步骤。
此外，存储器可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，易失性或非易失性存储设备包括但不限于：RAM(Random-Access Memory，随机存储器)和ROM(Read-Only Memory，只读存储器)、EPROM(Erasable Programmable Read-Only Memory，可擦写可编程只读存储器)、EEPROM(Electrically Erasable Programmable Read-Only Memory，电可擦写可编程只读存储器)、闪存或其他固态存储其技术，CD-ROM(Compact Disc Read-Only Memory，只读光盘)、DVD(Digital Video Disc，高密度数字视频光盘)或其他光学存储、磁带盒、磁带、磁盘存储或其他磁性存储设备。其中：
所述收发器132，用于接收来自于网络设备的信号配置信息，所述信号配置信息用于配置所述终端设备与所述网络设备之间用于传输时延补偿的参考信号；其中，所述参考信号包括：上行参考信号和/或下行参考信号。
在一个示例中，所述上行参考信号包括以下至少一项：SRS、前导码、DMRS。
在一个示例中，所述下行参考信号包括以下至少一项：PRS、CSI-RS、SSB、CRS、DMRS、TRS。
在一个示例中，所述信号配置信息还包括：所述上行参考信号与所述下行参考信号之间的绑定关系。
在一个示例中，所述收发器132，用于向所述网络设备发送第一时延参考信息，所述第一时延参考信息用于确定所述终端设备与所述网络设备之间的信号传输时延，或者所述传输时延补偿时补偿的传输时延。
在一个示例中，所述第一时延参考信息包括以下至少一项：所述下行参考信号的接收时刻、所述上行参考信号的发送时刻、所述下行参考信号的接收时刻与所述上行参考信号的发送时刻之间的时间差、所述下行参考信号的索引、所述上行参考信号的索引、所述下行参考信号与所述上行参考信号之间的映射索引。
在一个示例中，所述收发器132，用于：在第一时刻向所述网络设备发送所述第一时延参考信息；其中，所述第一时刻包括以下任意一项：所述下行参考信号的接收时刻、所述下行参考信号的接收时刻之后的时刻、所述上行参考信号的发送时刻、所述上行参考信号的发送时刻之后的时刻、第二时刻、所述第二时刻之后的时刻；所述第二时刻为确定所述下行参考信号的接收时刻与所述上行参考信号的发送时刻之间的时间差的时刻。
在一个示例中，所述终端设备周期性地向所述网络设备发送所述第一时延参考信息。
在一个示例中，所述收发器132，用于接收来自于所述网络设备的第二时延参考信息；所述处理器131，用于根据所述第二时延参考信息，确定所述终端设备与所述网络设备之间的信号传输时延，或者所述传输时延补偿时补偿的传输时延。
在一个示例中，所述第二时延参考信息包括以下至少一项：所述下行参考信号的发送时刻、所述上行参考信号的接收时刻、所述下行参考信号的发送时刻与所述上行参考信号的接收时刻之间的时间差、所述下行参考信号的索引、所述上行参考信号的索引、所述下行参考信号与所述上行参考信号之间的映射索引。
在一个示例中，所述处理器131，用于：根据补偿主体信息，执行所述传输时延补偿。
在一个示例中，所述补偿主体信息包括以下至少一项：来自于所述网络设备的主体指示信息、来自于所述网络设备的主体配置信息、通信协议预定义的补偿主体信息。
在一个示例中，所述网络设备为所述终端设备的服务小区对应的网络设备。
在一个示例中，所述终端设备满足以下至少一个条件：具备高精度的传输需求、支持传输TSN业务、支持传输gPTP消息。
请参考图14，其示出了本申请一个实施例提供的网络设备140的结构示意图，例如，该网络设备可以用于执行上述网络设备侧传输时延的补偿方法。具体来讲，该网络设备140可以包括：处理器141，以及与所述处理器141相连的收发器142；其中：
处理器141包括一个或者一个以上处理核心，处理器141通过运行软件程序以及模块，从而执行各种功能应用以及信息处理。
收发器142包括接收器和发射器。可选地，收发器142是一块通信芯片。
在一个示例中，网络设备140还包括：存储器和总线。存储器通过总线与处理器相连。存储器可用于存储计算机程序，处理器用于执行该计算机程序，以实现上述方法实施例中的网络设备执行的各个步骤。
此外，存储器可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，易失性或非易失性存储设备包括但不限于：RAM和ROM、EPROM、EEPROM、闪存或其他固态存储其技术，CD-ROM、DVD或其他光学存储、磁带盒、磁带、磁盘存储或其他磁性存储设备。其中：
所述收发器142，用于向终端设备发送信号配置信息，所述信号配置信息用于配置所述终端设备与所述网络设备之间用于传输时延补偿的参考信号；其中，所述参考信号包括：上行参考信号和/或下行参考信号。
在一个示例中，所述上行参考信号包括以下至少一项：SRS、前导码、DMRS。
在一个示例中，所述下行参考信号包括以下至少一项：PRS、CSI-RS、SSB、CRS、DMRS、TRS。
在一个示例中，所述信号配置信息还包括：所述上行参考信号与所述下行参考信号之间的绑定关系。
在一个示例中，所述收发器142，用于接收来自于所述终端设备的第一时延参考信息；所述处理器141，用于根据所述第一时延参考信息，确定所述终端设备与所述网络设备之间的信号传输时延，或者所述传输时延补偿时补偿的传输时延。
在一个示例中，所述第一时延参考信息包括以下至少一项：所述下行参考信号的接收时刻、所述上行参考信号的发送时刻、所述下行参考信号的接收时刻与所述上行参考信号的发送时刻之间的时间差、所述 下行参考信号的索引、所述上行参考信号的索引、所述下行参考信号与所述上行参考信号之间的映射索引。
在一个示例中，所述收发器142，用于：向所述终端设备发送第二时延参考信息，所述第二时延参考信息用于确定所述终端设备与所述网络设备之间的信号传输时延，或者所述传输时延补偿时补偿的传输时延。
在一个示例中，所述第二时延参考信息包括以下至少一项：所述下行参考信号的发送时刻、所述上行参考信号的接收时刻、所述下行参考信号的发送时刻与所述上行参考信号的接收时刻之间的时间差、所述下行参考信号的索引、所述上行参考信号的索引、所述下行参考信号与所述上行参考信号之间的映射索引。
在一个示例中，所述收发器142，用于：在第三时刻向所述终端设备发送所述第二时延参考信息；其中，所述第三时刻包括以下任意一项：所述下行参考信号的发送时刻、所述下行参考信号的发送时刻之后的时刻、所述上行参考信号的接收时刻、所述上行参考信号的接收时刻之后的时刻、第四时刻、所述第四时刻之后的时刻；所述第四时刻为确定所述下行参考信号的发送时刻与所述上行参考信号的接收时刻之间的时间差的时刻。
在一个示例中，所述网络设备周期性地向所述终端设备发送所述第二时延参考信息。
在一个示例中，所述处理器141，用于：根据补偿主体信息，执行所述传输时延补偿。
在一个示例中，所述补偿主体信息包括以下至少一项：所述网络设备的主体指示信息、所述网络设备的主体配置信息、通信协议预定义的补偿主体信息。
在一个示例中，所述网络设备为所述终端设备的服务小区对应的网络设备。
在一个示例中，所述终端设备满足以下至少一个条件：具备高精度的传输需求、支持传输TSN业务、支持传输gPTP消息。
本申请实施例还提供了一种计算机可读存储介质，所述存储介质中存储有计算机程序，所述计算机程序用于被终端设备的处理器执行，以实现如上述终端设备侧传输时延的补偿方法。
本申请实施例还提供了一种计算机可读存储介质，所述存储介质中存储有计算机程序，所述计算机程序用于被网络设备的处理器执行，以实现如上述网络设备侧传输时延的补偿方法。
本申请实施例还提供了一种芯片，所述芯片包括可编程逻辑电路和/或程序指令，当所述芯片在终端设备上运行时，用于实现如上述终端设备侧传输时延的补偿方法。
本申请实施例还提供了一种芯片，所述芯片包括可编程逻辑电路和/或程序指令，当所述芯片在网络设备上运行时，用于实现如上述网络设备侧传输时延的补偿方法。
本申请实施例还提供了一种计算机程序产品，当计算机程序产品在终端设备上运行时，使得计算机执行如上述终端设备侧传输时延的补偿方法。
本申请实施例还提供了一种计算机程序产品，当计算机程序产品在网络设备上运行时，使得计算机执行如上述网络设备侧传输时延的补偿方法。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请实施例所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述仅为本申请的示例性实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (60)

  1. 一种传输时延的补偿方法，其特征在于，应用于终端设备中，所述方法包括：
    接收来自于网络设备的信号配置信息，所述信号配置信息用于配置所述终端设备与所述网络设备之间用于传输时延补偿的参考信号；
    其中，所述参考信号包括：上行参考信号和/或下行参考信号。
  2. 根据权利要求1所述的方法，其特征在于，所述上行参考信号包括以下至少一项：探测参考信号SRS、前导码、解调参考信号DMRS。
  3. 根据权利要求1或2所述的方法，其特征在于，所述下行参考信号包括以下至少一项：定位参考信号PRS、信道状态信息参考信号CSI-RS、同步信号块SSB、小区参考信号CRS、DMRS、跟踪参考信号TRS。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，所述信号配置信息还包括：所述上行参考信号与所述下行参考信号之间的绑定关系。
  5. 根据权利要求1至4任一项所述的方法，其特征在于，所述方法还包括：
    向所述网络设备发送第一时延参考信息，所述第一时延参考信息用于确定所述终端设备与所述网络设备之间的信号传输时延，或者所述传输时延补偿时补偿的传输时延。
  6. 根据权利要求5所述的方法，其特征在于，所述第一时延参考信息包括以下至少一项：所述下行参考信号的接收时刻、所述上行参考信号的发送时刻、所述下行参考信号的接收时刻与所述上行参考信号的发送时刻之间的时间差、所述下行参考信号的索引、所述上行参考信号的索引、所述下行参考信号与所述上行参考信号之间的映射索引。
  7. 根据权利要求5或6所述的方法，其特征在于，所述向所述网络设备发送第一时延参考信息，包括：
    在第一时刻向所述网络设备发送所述第一时延参考信息；
    其中，所述第一时刻包括以下任意一项：所述下行参考信号的接收时刻、所述下行参考信号的接收时刻之后的时刻、所述上行参考信号的发送时刻、所述上行参考信号的发送时刻之后的时刻、第二时刻、所述第二时刻之后的时刻；所述第二时刻为确定所述下行参考信号的接收时刻与所述上行参考信号的发送时刻之间的时间差的时刻。
  8. 根据权利要求5至7任一项所述的方法，其特征在于，所述终端设备周期性地向所述网络设备发送所述第一时延参考信息。
  9. 根据权利要求1至4任一项所述的方法，其特征在于，所述方法还包括：
    接收来自于所述网络设备的第二时延参考信息；
    根据所述第二时延参考信息，确定所述终端设备与所述网络设备之间的信号传输时延，或者所述传输时延补偿时补偿的传输时延。
  10. 根据权利要求9所述的方法，其特征在于，所述第二时延参考信息包括以下至少一项：所述下行参考信号的发送时刻、所述上行参考信号的接收时刻、所述下行参考信号的发送时刻与所述上行参考信号的接收时刻之间的时间差、所述下行参考信号的索引、所述上行参考信号的索引、所述下行参考信号与所述上行参考信号之间的映射索引。
  11. 根据权利要求1至10任一项所述的方法，其特征在于，所述方法还包括：
    根据补偿主体信息，执行所述传输时延补偿。
  12. 根据权利要求11所述的方法，其特征在于，所述补偿主体信息包括以下至少一项：来自于所述网络设备的主体指示信息、来自于所述网络设备的主体配置信息、通信协议预定义的补偿主体信息。
  13. 根据权利要求1至12任一项所述的方法，其特征在于，所述网络设备为所述终端设备的服务小区对应的网络设备。
  14. 根据权利要求1至13任一项所述的方法，其特征在于，所述终端设备满足以下至少一个条件：具备高精度的传输需求、支持传输时间敏感性网络TSN业务、支持传输通用精确时间协议gPTP消息。
  15. 一种传输时延的补偿方法，其特征在于，应用于网络设备中，所述方法包括：
    向终端设备发送信号配置信息，所述信号配置信息用于配置所述终端设备与所述网络设备之间用于传输时延补偿的参考信号；
    其中，所述参考信号包括：上行参考信号和/或下行参考信号。
  16. 根据权利要求15所述的方法，其特征在于，所述上行参考信号包括以下至少一项：探测参考信号SRS、前导码、解调参考信号DMRS。
  17. 根据权利要求15或16所述的方法，其特征在于，所述下行参考信号包括以下至少一项：定位参考信号PRS、信道状态信息参考信号CSI-RS、同步信号块SSB、小区参考信号CRS、DMRS、跟踪参考信号TRS。
  18. 根据权利要求15至17任一项所述的方法，其特征在于，所述信号配置信息还包括：所述上行参考信号与所述下行参考信号之间的绑定关系。
  19. 根据权利要求15至18任一项所述的方法，其特征在于，所述方法还包括：
    接收来自于所述终端设备的第一时延参考信息；
    根据所述第一时延参考信息，确定所述终端设备与所述网络设备之间的信号传输时延，或者所述传输时延补偿时补偿的传输时延。
  20. 根据权利要求19所述的方法，其特征在于，所述第一时延参考信息包括以下至少一项：所述下行参考信号的接收时刻、所述上行参考信号的发送时刻、所述下行参考信号的接收时刻与所述上行参考信号的发送时刻之间的时间差、所述下行参考信号的索引、所述上行参考信号的索引、所述下行参考信号与所述上行参考信号之间的映射索引。
  21. 根据权利要求15至18任一项所述的方法，其特征在于，所述方法还包括：
    向所述终端设备发送第二时延参考信息，所述第二时延参考信息用于确定所述终端设备与所述网络设备之间的信号传输时延，或者所述传输时延补偿时补偿的传输时延。
  22. 根据权利要求21所述的方法，其特征在于，所述第二时延参考信息包括以下至少一项：所述下行参考信号的发送时刻、所述上行参考信号的接收时刻、所述下行参考信号的发送时刻与所述上行参考信号的接收时刻之间的时间差、所述下行参考信号的索引、所述上行参考信号的索引、所述下行参考信号与所述上行参考信号之间的映射索引。
  23. 根据权利要求21或22所述的方法，其特征在于，所述向所述终端设备发送第二时延参考信息，包括：
    在第三时刻向所述终端设备发送所述第二时延参考信息；
    其中，所述第三时刻包括以下任意一项：所述下行参考信号的发送时刻、所述下行参考信号的发送时刻之后的时刻、所述上行参考信号的接收时刻、所述上行参考信号的接收时刻之后的时刻、第四时刻、所述第四时刻之后的时刻；所述第四时刻为确定所述下行参考信号的发送时刻与所述上行参考信号的接收时刻之间的时间差的时刻。
  24. 根据权利要求21至23任一项所述的方法，其特征在于，所述网络设备周期性地向所述终端设备发送所述第二时延参考信息。
  25. 根据权利要求15至24任一项所述的方法，其特征在于，所述方法还包括：
    根据补偿主体信息，执行所述传输时延补偿。
  26. 根据权利要求25所述的方法，其特征在于，所述补偿主体信息包括以下至少一项：所述网络设备的主体指示信息、所述网络设备的主体配置信息、通信协议预定义的补偿主体信息。
  27. 根据权利要求15至26任一项所述的方法，其特征在于，所述网络设备为所述终端设备的服务小区对应的网络设备。
  28. 根据权利要求15至27任一项所述的方法，其特征在于，所述终端设备满足以下至少一个条件：具备高精度的传输需求、支持传输时间敏感性网络TSN业务、支持传输通用精确时间协议gPTP消息。
  29. 一种传输时延的补偿装置，其特征在于，设置在终端设备中，所述装置包括：
    配置信息接收模块，用于接收来自于网络设备的信号配置信息，所述信号配置信息用于配置所述终端设备与所述网络设备之间用于传输时延补偿的参考信号；
    其中，所述参考信号包括：上行参考信号和/或下行参考信号。
  30. 根据权利要求29所述的装置，其特征在于，所述上行参考信号包括以下至少一项：探测参考信号SRS、前导码、解调参考信号DMRS。
  31. 根据权利要求29或30所述的装置，其特征在于，所述下行参考信号包括以下至少一项：定位参考信号PRS、信道状态信息参考信号CSI-RS、同步信号块SSB、小区参考信号CRS、DMRS、跟踪参考信号TRS。
  32. 根据权利要求29至31任一项所述的装置，其特征在于，所述信号配置信息还包括：所述上行参考信号与所述下行参考信号之间的绑定关系。
  33. 根据权利要求29至32任一项所述的装置，其特征在于，所述装置还包括：
    第一信息发送模块，用于向所述网络设备发送第一时延参考信息，所述第一时延参考信息用于确定所述终端设备与所述网络设备之间的信号传输时延，或者所述传输时延补偿时补偿的传输时延。
  34. 根据权利要求33所述的装置，其特征在于，所述第一时延参考信息包括以下至少一项：所述下行参考信号的接收时刻、所述上行参考信号的发送时刻、所述下行参考信号的接收时刻与所述上行参考信号的发送时刻之间的时间差、所述下行参考信号的索引、所述上行参考信号的索引、所述下行参考信号与所述上行参考信号之间的映射索引。
  35. 根据权利要求33或34所述的装置，其特征在于，所述第一信息发送模块，用于：
    在第一时刻向所述网络设备发送所述第一时延参考信息；
    其中，所述第一时刻包括以下任意一项：所述下行参考信号的接收时刻、所述下行参考信号的接收时刻之后的时刻、所述上行参考信号的发送时刻、所述上行参考信号的发送时刻之后的时刻、第二时刻、所述第二时刻之后的时刻；所述第二时刻为确定所述下行参考信号的接收时刻与所述上行参考信号的发送时刻之间的时间差的时刻。
  36. 根据权利要求33至35任一项所述的装置，其特征在于，所述终端设备周期性地向所述网络设备发送所述第一时延参考信息。
  37. 根据权利要求29至32任一项所述的装置，其特征在于，所述装置还包括：
    第二信息接收模块，用于接收来自于所述网络设备的第二时延参考信息；
    传输时延确定模块，用于根据所述第二时延参考信息，确定所述终端设备与所述网络设备之间的信号传输时延，或者所述传输时延补偿时补偿的传输时延。
  38. 根据权利要求37所述的装置，其特征在于，所述第二时延参考信息包括以下至少一项：所述下行参考信号的发送时刻、所述上行参考信号的接收时刻、所述下行参考信号的发送时刻与所述上行参考信号的接收时刻之间的时间差、所述下行参考信号的索引、所述上行参考信号的索引、所述下行参考信号与 所述上行参考信号之间的映射索引。
  39. 根据权利要求29至38任一项所述的装置，其特征在于，所述装置还包括：
    传输时延补偿模块，用于根据补偿主体信息，执行所述传输时延补偿。
  40. 根据权利要求39所述的装置，其特征在于，所述补偿主体信息包括以下至少一项：来自于所述网络设备的主体指示信息、来自于所述网络设备的主体配置信息、通信协议预定义的补偿主体信息。
  41. 根据权利要求29至40任一项所述的装置，其特征在于，所述网络设备为所述终端设备的服务小区对应的网络设备。
  42. 根据权利要求29至41任一项所述的装置，其特征在于，所述终端设备满足以下至少一个条件：具备高精度的传输需求、支持传输时间敏感性网络TSN业务、支持传输通用精确时间协议gPTP消息。
  43. 一种传输时延的补偿装置，其特征在于，设置在网络设备中，所述装置包括：
    配置信息发送模块，用于向终端设备发送信号配置信息，所述信号配置信息用于配置所述终端设备与所述网络设备之间用于传输时延补偿的参考信号；
    其中，所述参考信号包括：上行参考信号和/或下行参考信号。
  44. 根据权利要求43所述的装置，其特征在于，所述上行参考信号包括以下至少一项：探测参考信号SRS、前导码、解调参考信号DMRS。
  45. 根据权利要求43或44所述的装置，其特征在于，所述下行参考信号包括以下至少一项：定位参考信号PRS、信道状态信息参考信号CSI-RS、同步信号块SSB、小区参考信号CRS、DMRS、跟踪参考信号TRS。
  46. 根据权利要求43至45任一项所述的装置，其特征在于，所述信号配置信息还包括：所述上行参考信号与所述下行参考信号之间的绑定关系。
  47. 根据权利要求43至46任一项所述的装置，其特征在于，所述装置还包括：
    第一信息接收模块，用于接收来自于所述终端设备的第一时延参考信息；
    传输时延确定模块，用于根据所述第一时延参考信息，确定所述终端设备与所述网络设备之间的信号传输时延，或者所述传输时延补偿时补偿的传输时延。
  48. 根据权利要求47所述的装置，其特征在于，所述第一时延参考信息包括以下至少一项：所述下行参考信号的接收时刻、所述上行参考信号的发送时刻、所述下行参考信号的接收时刻与所述上行参考信号的发送时刻之间的时间差、所述下行参考信号的索引、所述上行参考信号的索引、所述下行参考信号与所述上行参考信号之间的映射索引。
  49. 根据权利要求43至46任一项所述的装置，其特征在于，所述装置还包括：
    第二信息发送模块，用于向所述终端设备发送第二时延参考信息，所述第二时延参考信息用于确定所述终端设备与所述网络设备之间的信号传输时延，或者所述传输时延补偿时补偿的传输时延。
  50. 根据权利要求49所述的装置，其特征在于，所述第二时延参考信息包括以下至少一项：所述下行参考信号的发送时刻、所述上行参考信号的接收时刻、所述下行参考信号的发送时刻与所述上行参考信号的接收时刻之间的时间差、所述下行参考信号的索引、所述上行参考信号的索引、所述下行参考信号与所述上行参考信号之间的映射索引。
  51. 根据权利要求49或50所述的装置，其特征在于，所述第二信息发送模块，用于：
    在第三时刻向所述终端设备发送所述第二时延参考信息；
    其中，所述第三时刻包括以下任意一项：所述下行参考信号的发送时刻、所述下行参考信号的发送时刻之后的时刻、所述上行参考信号的接收时刻、所述上行参考信号的接收时刻之后的时刻、第四时刻、所述第四时刻之后的时刻；所述第四时刻为确定所述下行参考信号的发送时刻与所述上行参考信号的接收时 刻之间的时间差的时刻。
  52. 根据权利要求49至51任一项所述的装置，其特征在于，所述网络设备周期性地向所述终端设备发送所述第二时延参考信息。
  53. 根据权利要求43至52任一项所述的装置，其特征在于，所述装置还包括：
    传输时延补偿模块，用于根据补偿主体信息，执行所述传输时延补偿。
  54. 根据权利要求53所述的装置，其特征在于，所述补偿主体信息包括以下至少一项：所述网络设备的主体指示信息、所述网络设备的主体配置信息、通信协议预定义的补偿主体信息。
  55. 根据权利要求43至54任一项所述的装置，其特征在于，所述网络设备为所述终端设备的服务小区对应的网络设备。
  56. 根据权利要求43至55任一项所述的装置，其特征在于，所述终端设备满足以下至少一个条件：具备高精度的传输需求、支持传输时间敏感性网络TSN业务、支持传输通用精确时间协议gPTP消息。
  57. 一种终端设备，其特征在于，所述终端设备包括：处理器，以及与所述处理器相连的收发器；其中：
    所述收发器，用于接收来自于网络设备的信号配置信息，所述信号配置信息用于配置所述终端设备与所述网络设备之间用于传输时延补偿的参考信号；
    其中，所述参考信号包括：上行参考信号和/或下行参考信号。
  58. 一种网络设备，其特征在于，所述网络设备包括：处理器，以及与所述处理器相连的收发器；其中：
    所述收发器，用于向终端设备发送信号配置信息，所述信号配置信息用于配置所述终端设备与所述网络设备之间用于传输时延补偿的参考信号；
    其中，所述参考信号包括：上行参考信号和/或下行参考信号。
  59. 一种计算机可读存储介质，其特征在于，所述存储介质中存储有计算机程序，所述计算机程序用于被终端设备的处理器执行，以实现如权利要求1至14任一项所述的传输时延的补偿方法。
  60. 一种计算机可读存储介质，其特征在于，所述存储介质中存储有计算机程序，所述计算机程序用于被网络设备的处理器执行，以实现如权利要求15至28任一项所述的传输时延的补偿方法。
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