WO2019109983A1 - 数据传输的方法和装置 - Google Patents

数据传输的方法和装置 Download PDF

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Publication number
WO2019109983A1
WO2019109983A1 PCT/CN2018/119626 CN2018119626W WO2019109983A1 WO 2019109983 A1 WO2019109983 A1 WO 2019109983A1 CN 2018119626 W CN2018119626 W CN 2018119626W WO 2019109983 A1 WO2019109983 A1 WO 2019109983A1
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WO
WIPO (PCT)
Prior art keywords
network node
data packet
transmission
duration
indication information
Prior art date
Application number
PCT/CN2018/119626
Other languages
English (en)
French (fr)
Inventor
庞伶俐
杨利
杨旭东
张宏卓
朱文若
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP18886360.9A priority Critical patent/EP3709546B1/en
Publication of WO2019109983A1 publication Critical patent/WO2019109983A1/zh
Priority to US16/894,388 priority patent/US11184804B2/en

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Classifications

    • 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
    • H04W28/10—Flow control between communication endpoints
    • H04W28/12—Flow control between communication endpoints using signalling between network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/28—Flow control; Congestion control in relation to timing considerations
    • H04L47/283—Flow control; Congestion control in relation to timing considerations in response to processing delays, e.g. caused by jitter or round trip time [RTT]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • 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
    • H04W28/0215—Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices
    • 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
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information

Definitions

  • the present application relates to the field of communications, and more particularly to a method and apparatus for data transmission in the field of communications.
  • the use of wireless communication networks can simplify the network topology, reduce the network overhead, support the mobile device's mobile scene, etc., and has been widely used in many fields.
  • the wireless communication network carries a data packet that requires a high duration of transmission
  • each network node responsible for transmitting the data packet in the wireless communication network is required to provide a transmission service capable of meeting the duration requirement.
  • the present application provides a data transmission method and apparatus, which are beneficial for ensuring that a communication network transmits data packets according to the length of time required.
  • an embodiment of the present application provides a data transmission method, where the method includes:
  • the first network node receives the first indication information sent by the second network node, where the first indication information is used by the first network node to determine a first duration, where the first duration is that the first data packet is received from the first network node. The duration to which the first network node sends the first data packet;
  • the first network node sends the first data packet according to the first indication information.
  • the first network node in the communication network sends the first data packet according to the first duration in the first indication information, which is beneficial to ensure that the communication network transmits the first according to the duration requirement. data pack.
  • the method before the first network node receives the first indication information sent by the second network node, the method further includes: the first network node acquiring deterministic transmission indication information, the deterministic transmission indication information Instructing the first network node to perform deterministic transmission on the first data stream, that is, instructing the first network node to transmit the data packet in the first data stream according to the requirement of the first time duration, where the first data stream is in the first data stream The first data packet is included.
  • the S230 may be: the first network node sends the first data packet according to the first duration and the deterministic transmission indication information.
  • the communication network requires a high delay for the first data packet, if the first data packet is required to be transmitted according to the duration indicated by the second network node, the first data packet may be invalidated or expired.
  • the first network node may discard the first data packet, or the first network node may send the first data packet to the second network node.
  • the embodiment of the present application does not limit the length of time from the receipt of the first data packet to the sending of the first data packet or the transmission failure.
  • the first data packet is a data packet in the first data stream
  • the first indication information includes an identifier of the first data stream
  • the data flow in the embodiment of the present application refers to a data packet set consisting of one or at least two data packets, which is a logical concept, and data packets belonging to the same data flow have the same or similar characteristics.
  • data packets having the same transceiver end such as data packets having the same internet protocol (IP) address, or data packets having the same or similar transmission duration requirements, or having the same data flow identifier
  • IP internet protocol
  • a packet can belong to a data stream.
  • the identifier of the data stream may be an identifier of the bearer where the data stream is located, or an identifier of the sending end and/or the receiving end of the data stream, or an identifier of the terminal device, or the data stream in the communication network.
  • the identifiers used to distinguish the data stream in the communication network are not limited in this embodiment of the present application.
  • the deterministic transmission indication information includes an identifier of the data stream, and the first network node can be distinguished when the communication network has multiple data flows required by different transmission durations.
  • the data stream is guaranteed, and the communication network is guaranteed to transmit the data packets in each data stream according to the duration of each data stream.
  • the first indication information includes the numerical information of the first duration.
  • the first network node sends the first data packet according to the first indication information, where the first network node determines the first duration according to the first indication information; the first network node is configured according to the first network node. The first time period, the first data packet is sent.
  • the first indication information includes value information of a second duration, where the second duration is that the first data packet is received from the third network node to the fourth network node, and the first data is sent.
  • the duration of the packet the third network node is the first network node in the communication network that transmits the first data packet
  • the fourth network node is the last network node in the communication network that transmits the first data packet
  • the communication network includes the first network node and the second network node.
  • the method further includes: acquiring, by the first network node, the first time a parameter, the first time parameter indicating a first time or a third time length, where the first time is a time when the third network node receives the first data packet, and the third time length is received from the third network node Receiving, by the first network node, the duration of the first data packet to the first network node; the first network node sending the first data packet according to the first indication information, including: the first network The node according to the first indication information and the first time parameter, transmitting the first packet.
  • the first network node sends the first data packet according to the first indication information and the first time parameter, where the first network node may determine, according to the second duration and the first time parameter, The first time period; the first network node sends the first data packet according to the first time duration.
  • the first indication information includes value information of a fourth duration, where the fourth duration is that the first data packet is received from the first network node, and the fourth network node sends the first The length of a packet.
  • the first network node sends the first data packet according to the first indication information, where the first network node determines the first duration according to the fourth duration; the first network node is configured according to the The first time period, the first data packet is sent.
  • the first network node acquires the first time parameter, where the first network node acquires the first time parameter carried by the first data packet, or the first network node receives the second time parameter.
  • the second indication information includes the first time parameter; the first network node acquires the first time parameter from the second indication information.
  • the first data stream includes at least two data packets that are transmitted by using a first transmission period, where the at least two data packets include the first data packet, and the first indication information further includes the Information of the first transmission cycle.
  • the first network node acquires the first time parameter, where: the first network node acquires a second time parameter, where the second time parameter Determining a second time, the second time is a time when the third network node receives the second data packet, and the second data packet is a data packet that is transmitted by the first one of the at least two data packets; the first network The node determines the first time parameter according to the second moment and the first transmission period.
  • the first data packet is a data packet in the first data stream
  • the method further includes: And transmitting, by the first network node, a transmission parameter used when transmitting the data packet in the first data stream, where the transmission parameter includes at least one activation identifier, at least one transmission period activated by the at least one activation identifier, and adopting the at least one The identifier of the data packet sent in each transmission period in the transmission period, the at least one transmission period includes the first transmission period, and the first network node sends the first data packet according to the first indication information, including: A network node sends the first data packet according to the first indication information and the transmission parameter.
  • the transmission parameter may further include information of a time-frequency resource used by the data packet transmitted by using each of the transmission periods and/or a modulation and coding strategy of the data packet transmitted by using each of the transmission periods (modulation and coding) Scheme, MCS) information.
  • MCS modulation and coding
  • the transmission parameter may further include information for transmitting the second data packet and the target time-frequency resource of the third data packet and/or Or the information of the target MCS for transmitting the second data packet and the third data packet, where the second transmission period and the third transmission period are any two of a plurality of transmission periods, and the embodiment of the present application is This is not limited.
  • the first network node can know which kind or transmission periods are activated according to the transmission parameters, which data packets are transmitted by using each activated transmission period, and the data packets are transmitted.
  • the time-frequency resource and the MCS are used. Therefore, the first network node does not need to request scheduling information from the second network node when each data packet is sent, which can reduce the signaling overhead.
  • the method further includes: the first network node reporting, to the second network node, transmission capability information, where the transmission capability information includes an amount of transmission data supported by the first network node, and the first network a transmission rate supported by the node, a transmission reliability supported by the first network node, and a first data packet supported by the first network node and received by the first network node to the first network node to send the first data packet At least one of the durations.
  • the second network node may determine the first indication information according to the transmission capability information reported by the first network node, and the transmission capability of the first network node may be avoided.
  • the length of time indicated by the two network nodes causes the communication network to fail to transmit data packets according to the length of time.
  • the first indication information includes at least one of a duration threshold and a duration jitter.
  • the first network node may send the first data packet within an allowable duration threshold of the first duration or within an allowable duration jitter of the first duration.
  • the first network node may send the first data packet within an allowable duration threshold of the second duration or within an allowable duration jitter of the second duration.
  • the present application provides a method for data transmission, the method comprising:
  • the second network node determines first indication information, where the first indication information is used for determining the first duration, where the first duration is that the first data packet is received from the first network node, and the first network node sends the first data.
  • the length of the package
  • the second network node sends the first indication information to the first network node.
  • the method further includes: receiving, by the second network node, the transmission capability information reported by the first network node, where the transmission capability information includes the amount of transmission data supported by the first network node, the first a transmission rate supported by the network node, a transmission reliability supported by the first network node, and a first data packet supported by the first network node from the first network node to the first network node to send the first data packet At least one of the durations of the first network node determining the first indication information of the first network node, the second network node determining the first indication information according to the transmission capability information.
  • the present application provides an apparatus for data transmission for performing the method of any of the above aspects or any of the possible implementations of the first aspect.
  • the present application provides an apparatus for data transmission for performing the method of any of the foregoing second aspect or any of the possible implementations of the second aspect.
  • the present application provides an apparatus for data transmission, the apparatus comprising: a memory, a processor, a transceiver, and instructions stored on the memory and executable on the processor, wherein the memory, the processing And the communication interface communicate with each other through an internal connection path, wherein the processor executes the instructions to cause the apparatus to implement the method of any of the first aspect or the first aspect of the first aspect.
  • the present application provides an apparatus for data transmission, the apparatus comprising: a memory, a processor, a transceiver, and instructions stored on the memory and executable on the processor, wherein the memory, the processing And the communication interface communicate with each other through an internal connection path, wherein the processor executes the instruction to cause the apparatus to implement the method of any of the second aspect or the second aspect of the second aspect.
  • the present application provides a computer readable medium for storing a computer program, the computer program comprising instructions for implementing the method of any of the first aspect or the first aspect of the first aspect.
  • the present application provides a computer readable medium for storing a computer program, the computer program comprising instructions for implementing the method of any of the second aspect or the second aspect of the second aspect.
  • the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to implement the method of any of the first aspect or the first aspect of the first aspect.
  • the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to implement the method of any of the above-described second aspect or any of the possible implementations of the second aspect.
  • the present application provides a chip device, including: an input interface, an output interface, at least one processor, and a memory, wherein the input interface, the output interface, the processor, and the memory communicate with each other through an internal connection path.
  • the processor is operative to execute code in the memory, and when the processor executes the code, the chip device implements the method of any of the first aspect or the first aspect of the first aspect.
  • the present application provides a chip device, including: an input interface, an output interface, at least one processor, and a memory, wherein the input interface, the output interface, the processor, and the memory communicate with each other through an internal connection path.
  • the processor is operative to execute code in the memory, and when the processor executes the code, the chip device implements the method of any of the second aspect or the second aspect of the second aspect.
  • FIG. 1 is a schematic block diagram of a communication network provided by an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for data transmission provided by an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a communication network according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of another communication network provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of still another communication network according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic flowchart of another method for data transmission provided by an embodiment of the present application.
  • FIG. 7 is a schematic block diagram of an apparatus for data transmission provided by an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of another apparatus for data transmission provided by an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of another apparatus for data transmission provided by an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of another apparatus for data transmission provided by an embodiment of the present application.
  • FIG. 1 shows a schematic block diagram of a communication network 100 provided by an embodiment of the present application.
  • the communication network 100 includes at least one first network node (the first network node 110 is shown in FIG. 1) and at least one second network node (the second network node 120 is shown in FIG. 1). .
  • the communication network in the embodiment of the present application may be a wireless communication network, and specifically, may be a wireless cellular network, but the embodiment of the present application is not limited thereto.
  • the first network node 110 is configured to transmit/route data packets.
  • the second network node 120 is configured to control the first network node to transmit/route data packets. For example, collecting the length of time that the first network node processes the data packet in the data packet transmission/routing process, configuring the duration of processing the data packet by the first network node, and the like.
  • the second network node may also be used for transmission/routing of data packets.
  • a second network node may control one or more first network nodes to transmit/route data packets, which is not limited in this embodiment of the present application.
  • the communication network may include other entities that can transmit/route data packets, which is not limited in this embodiment of the present application.
  • the first network node in the embodiment of the present application may transmit the data packet in the uplink direction, or may transmit the data packet in the downlink direction, where the uplink direction refers to the direction in which the terminal device sends the data packet to the network side device, and the downlink direction
  • the uplink direction refers to the direction in which the terminal device sends the data packet to the network side device
  • the downlink direction The direction in which the network side device sends the data packet to the terminal device is not limited in this embodiment.
  • the following describes the communication network in the embodiment of the present application by taking a cellular network as an example.
  • the data packet generating means generates a data packet and transmits the data packet to a third network node in the communication network; the data packet passes through each intermediate network node of the communication network responsible for transmitting/routing the data packet Transmitting to a fourth network node in the communication network; the fourth network node in the communication network transmitting the data packet to other network nodes in the other communication network, wherein the fourth network node is located in the underlying communication network A network node that is a network node of an application network located at a higher level.
  • the first network node that transmits the data packet when the first network node is included in the communication network, the first network node that transmits the data packet is referred to as a third network node, and the last one transmits the data packet.
  • a network node is referred to as a fourth network node; when the communication network includes more than two first network nodes, the first first network node that transmits the data packet is referred to as a third network node, and the last one transmits the data packet.
  • the first network node is referred to as a fourth network node, and the first network node transmitting the data packet between the third network node and the fourth network node is referred to as an intermediate network node.
  • the communication network refers to a network for data packet transmission/routing, and does not include generation of service data packets and resolution nodes of service data packets.
  • PLCs in industrial scenarios and network nodes in high-level application networks.
  • the terminal device may be logically divided into a communication module (or a cellular module) located at an underlying layer, and an industrial application module located at a higher layer.
  • the fourth network node can be understood as a communication module of the terminal device, and the other network node can be understood as an industrial application module of the terminal device.
  • the data packet generating device may be an industrial application module of the UE, and in a scenario in which the data packet is transmitted in the downlink direction, the data packet generating device may be a control device of the factory. Or an industrial input/output device, such as a programmable logic controller (PLC), which is not limited by the embodiment of the present application.
  • PLC programmable logic controller
  • the bottom layer in the embodiment of the present application may include at least one of a physical (PHY) layer, a MAC layer, an RLC layer, a PDCP layer, and an SDAP layer
  • the upper layer may include a transport layer, an application layer, and a PDCP layer.
  • At least one layer of the SDAP layer or the Ethernet data link layer is not limited in this embodiment of the present application.
  • the communication network may also be an industrial transmission network including a cellular network, where the first network node that transmits the data packet is a network node that generates the data packet, and the last one of the communication network transmits the data.
  • the network node of the packet is the receiving end of the data packet, and the network node that generates the data packet transmits the data packet to the receiving end of the data packet through the cellular network, which is not limited in this embodiment of the present application.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA Wideband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • WLAN wireless local area network
  • 5G fifth-generation wireless communication systems
  • the first network node and/or the second network node may also be an entity that can implement a specific network function, which is not limited in this embodiment of the present application.
  • the following describes the first network node and the second network node in the communication network by using a 5G communication system as an example.
  • the embodiment of the present application is not limited thereto.
  • the first network node may be a user equipment (UE), an access network (AN) device, a user plane function (UPF), and the like. limited.
  • UE user equipment
  • AN access network
  • UPF user plane function
  • the second network node may be an AN, an access and mobility management function (AMF), a session management function (SMF), an authentication server function (authentication server function, AUSF), unified data management (UDM), packet control function (PCF), etc., or the second network node can be a central user configuration (CUC) node, central network configuration
  • AMF access and mobility management function
  • SMF session management function
  • UDM authentication server function
  • PCF packet control function
  • CNC central user configuration
  • CNC central network configuration
  • the UE, the AN, and the UPF are the first network node, and the AMF is the second network node, wherein the AMF controls the UE, the AN, and the UPF to transmit/route the data packet.
  • the UE and the AN are the first network node, and the AMF and the SMF are the second network node, where the AMF controls the UE to transmit/route the data packet, and the SMF controls the AN to the data packet. Transfer/route.
  • the UE is a first network node
  • the AN is a second network node
  • the AN controls the UE to transmit/route data packets
  • the AN may also be responsible for completing data pairing with the UE. Packet transmission/routing.
  • the first UE is a first network node
  • the second UE is a second network node
  • the two UEs directly complete communication, that is, are controlled by one UE (referred to as a primary UE).
  • Another UE (referred to as the primary UE) transmits/routes the data packet.
  • the following takes the 5G communication system as an example to introduce the main functions of the network entity that may implement the functions of the first network node and the second network node:
  • the main functions of the AN are: radio resource scheduling and management, forwarding user plane messages to UPF, forwarding control plane information to AMF, session management, quality of service (QoS) flow management, mapping QoS flows to corresponding wireless Hosting and so on.
  • the main functions of the UPF are: user plane packet forwarding, user plane policy rule execution, and QoS management of user plane transmission.
  • AMF Access Management Function
  • the main functions of the SMF are: session management, IP address allocation and management of the UE, selection and control of the UPF, control of the destination of the UPF forwarding traffic, policy enforcement of the control, and QoS management.
  • AUSF The main functions of AUSF are: authentication credential processing, user identification processing, access authorization, registration/mobility management, and subscription management.
  • the UDM includes a front end (FE) and a user data repository (UDR).
  • FE is responsible for credit rating processing, location management, subscription management and other functions, and can access user subscription data stored in the UDR.
  • UDR is a user subscription data storage server, which is responsible for providing user subscription data to the front end.
  • the first network node and/or the second network node may be an entity that can implement a specific layer function in the network device, which is not limited in this embodiment of the present application.
  • the first network node may be an entity corresponding to the transport layer in the first network device
  • the second network node may be an entity corresponding to the application layer in the second network device.
  • the first network device and the second network device may be the same or different, which is not limited in this embodiment of the present application.
  • the UE in the embodiment of the present application may be mobile or fixed.
  • the UE may refer to an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device.
  • the access terminal may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication.
  • the AN in the embodiment of the present application may provide communication coverage for a specific geographic area, and may communicate with a UE located in the coverage area.
  • the AN may be a base transceiver station (BTS) in a GSM system or a CDMA system, or may be a base station (nodeB, NB) in a WCDMA system, or may be an evolved base station (eNB) in an LTE system. Or eNodeB), or a wireless controller in the AN.
  • BTS base transceiver station
  • NB base station
  • eNB evolved base station
  • LTE Long Term Evolution
  • eNodeB evolved base station
  • the access network device can also be transmitted by wireless signals in a variety of evolved systems such as a core network, a relay station, an access point, an in-vehicle device, a wearable device, a future 5G network, an NR network, or a subsequent wireless transmission.
  • a core network such as a core network, a relay station, an access point, an in-vehicle device, a wearable device, a future 5G network, an NR network, or a subsequent wireless transmission.
  • the device that completes communication between the UEs is completed.
  • the embodiment of the present application only introduces the first network node and the second network node in the communication network by using the 5G as an example, and the first network node and the second network node may also be other communication systems.
  • the first network node and the second network node may also be other communication systems.
  • a network entity capable of implementing the same function as that in the 5G communication system is not limited in this embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method 200 for data transmission provided by an embodiment of the present application, and the method 200 can be applied to the communication network 100 as described in FIG. 1.
  • the second network node determines first indication information of the first network node, where the first indication information is used by the first network node to determine a first duration, where the first duration is that the first data is received from the first network node. The length of time that the packet is sent to the first network node to send the first data packet.
  • the second network node sends the first indication information to the first network node.
  • the first network node receives the first indication information sent by the second network node.
  • the first network node sends the first data packet according to the first indication information.
  • the first duration can be understood as the processing duration required for the first network node to process the first data packet.
  • the processing performed by the first network node on the first data packet may include at least one of decapsulation, encapsulation, storage, segmentation, cascading, sorting, mapping, routing, and the like. Not limited.
  • the first duration may be understood as the first transmission of the first data packet.
  • the length of time required for the network node to generate the first data packet; for the last network node in the communication network that transmits the first data packet, the first duration can be understood as the last network node receiving the first data packet to receive The length of time required for this first packet.
  • t 0 is the time when the first network node receives the first data packet
  • t 1 is the time when the first network node sends the first data packet
  • various durations in the embodiments of the present application may be absolute durations, such as hours, minutes, seconds, milliseconds, microseconds, nanoseconds (nanosencond) Or the like; or the various durations in the embodiment of the present application may be an absolute duration represented by a time unit in the communication network, and the time unit may be a frame, a sub frame, or a slot. , microslots, symbols, and so on.
  • the first network node For example, if the first duration is 1 min, and the first network node receives the first data packet at 12:30:18 on November 11, 2017, the first network node should be November 11, 2017. The first data packet is transmitted at 12:31:18.
  • the first duration is 1 frame (ie, 10 ms)
  • the first network node receives the first data packet at 12:30:18, 10 milliseconds on November 11, 2017, the first network node The first packet should be sent at 12:30:18, 20 milliseconds on November 11, 2017.
  • the first indication information may indicate the first duration in an explicitly indicated manner or an implicit indication manner, which is not limited in this embodiment of the present application.
  • the first indication information may include the numerical information of the first duration.
  • the numerical information of the first duration may be at least one bit, and the at least one bit represents a value of the first duration.
  • the numerical information of the first duration includes 4 bits
  • “0001” indicates that the first duration is 1 ms
  • “0010” indicates that the first duration is 2 ms
  • “0011” indicates that the first duration is 3 ms
  • “0100” This indicates that the first duration is 4ms.
  • the first network node and the second network node may pre-arrange a time unit of the value of the first duration, or the second network node configures the time unit for the first network node, or in the communication network
  • the third party device configures the time unit for the first network node and the second network node.
  • the numerical information of the first duration may be at least one bit, and the at least one bit represents a number/index of the first duration, and the like.
  • the first network device determines the first duration according to the first indication information, and may determine, by the first network node, the first duration according to the value information of the first duration and the first mapping relationship, where The first mapping relationship is used to indicate a correspondence between the number/index of the first duration and the value of the first duration.
  • the first network node and the second network node can learn the first mapping relationship in a plurality of manners, which is not limited in this embodiment of the present application.
  • the first network node and the second network node may pre-agreed the first mapping relationship, or the second network node may configure the first mapping relationship for the first network node, or in the communication network
  • the third mapping device may configure the first mapping relationship for the first network node and the second network node.
  • the value information of the first duration includes 2 bits
  • “00” indicates that the first duration is 1 ms
  • “01” indicates that the first duration is 2 ms
  • “10” indicates that the first duration is 3 ms
  • “11” “Indicating the first duration is 4ms.
  • the first indication information may include value information of a second duration, where the second duration is that the first data packet is received from the third network node to the fourth network node, and the first data packet is sent.
  • the third network node is the first network node in the communication network that transmits the first data packet
  • the fourth network node is the last one in the communication network to transmit the first data packet.
  • the value information of the second duration may be at least one bit, and the at least one bit represents a value of the first duration.
  • the first network node and the second network node may pre-arrange a time unit of the value of the second duration, or the second network node configures the time unit for the first network node, or in the communication network
  • the third party device configures the time unit for the first network node and the second network node.
  • the value information of the second duration may be at least one bit, and the at least one bit represents a number/index of the first duration, and the like.
  • the first network device determines the second duration according to the first indication information, where the first network node determines the second duration according to the value information of the second duration and the second mapping relationship.
  • the second mapping relationship is used to indicate a correspondence between the number/index of the second duration and the value of the second duration.
  • the first network node and the second network node can learn the second mapping relationship in multiple manners, which is not limited in this embodiment of the present application.
  • the first network node and the second network node may pre-arrange the second mapping relationship, or the second network node may configure the second mapping relationship for the first network node, or in the communication network.
  • the third mapping device may configure the second mapping relationship for the first network node and the second network node.
  • the method 200 further includes: the first network node acquiring a first time parameter, where the first time parameter indicates a first time or a third time, the first time is received by the third network node At the time of the first data packet, the third duration is a duration from when the first network packet is received by the third network node to when the first network node receives the first data packet.
  • S230 may send, by the first network node, the first data packet according to the second duration and the first time parameter.
  • the first network node may determine the first duration according to the third duration and the second duration. Wherein, the first duration ⁇ the second duration - the third duration.
  • the first network node may determine the third duration according to the first time and the third time, and according to the third duration and the second duration Determining the first duration, where the third moment is the time when the first network node receives the first data packet.
  • the third duration the third moment - the first moment, the first duration ⁇ the second duration - the third duration, that is, the first duration ⁇ the second duration - (the third moment - the first moment).
  • Implicit indication mode 2 the first indication information may include value information of a fourth duration, where the fourth duration is that the first data packet is received from the first network node, and the fourth network node sends the data packet. The length of time.
  • the first network node may determine the first duration according to the fourth duration.
  • the first time length ⁇ the fourth time length.
  • FIG. 3 shows an architecture of a communication network provided by an embodiment of the present application, where the communication network includes only one first network node, that is, the third network node and the fourth network node in the communication network are the same A network node.
  • the first time is t 0
  • the third time is t 0
  • the time at which the fourth network node sends the first data packet is t 1
  • the second time length T 2 t 1 ⁇ t 0
  • the third time length T 3 0
  • the fourth time length T 4 t 1 -t 0
  • the first time length T 1 ⁇ T 2 -(t 0 -t 0 ) t 1 -t 0
  • the first One time length T 1 ⁇ T 2 - T 3 t 1 - t 0
  • the first time length T 1 ⁇ T 4 t 1 - t 0 .
  • FIG. 4 shows an architecture of a communication network provided by an embodiment of the present application, where the communication network includes two first network nodes.
  • the first network node that transmits the first data packet is called a third network node, and the last network that transmits the first data packet.
  • a node is called a fourth network node.
  • the first time is t 0
  • the third time is t 0
  • the time when the fourth network node sends the first data packet is t 3
  • the second time length T 2 t 3 - t 0
  • the third time length T 3 0
  • the first duration T 1 ⁇ T 2 -T 3 t 3 -t 0
  • the first duration T 1 ⁇ T 4 t 3 -t 0 .
  • the first time is t 0
  • the third time is t 2
  • the time when the fourth network node sends the first data packet is t 3 .
  • the second time length T 2 t 3 - t 0
  • the third time length T 3 t 2 - t 0
  • FIG. 5 shows an architecture of a communication network provided by an embodiment of the present application, where the communication network includes three first network nodes.
  • the first network node that transmits the first data packet is called the third network node, and the last network that transmits the first data packet.
  • a node is referred to as a fourth network node, and a first network node transmitting the first data packet between the third network node and the fourth network node is referred to as an intermediate network node.
  • the first time is t 0
  • the third time is t 0
  • the time when the fourth network node sends the first data packet is t 5 .
  • the second time length T 2 t 5 - t 0
  • the third time length T 3 0
  • the first time is t 0
  • the third time is t 2
  • the time at which the fourth network node sends the first data packet is t 5 .
  • the second time length T 2 t 5 - t 0
  • the third time length T 3 t 2 - t 0
  • the first network node may obtain a transmission duration of transmitting the first data packet between any two first network nodes in the communication network carried in the first indication information, and/or any of the communication network The processing time supported by a first network node.
  • the first network node may learn, by using an estimation manner, a transmission duration of transmitting the first data packet between any two first network nodes in the communication network, and/or any one of the communication network.
  • the processing time supported by the network node may be used, by using an estimation manner, a transmission duration of transmitting the first data packet between any two first network nodes in the communication network, and/or any one of the communication network.
  • the first network node is the fourth network node
  • the first time is t 0
  • the third time is t 4
  • the time when the fourth network node sends the first data packet is t 5 .
  • the second duration T 2 t 5 -t 0
  • the third duration T 3 t 4 -t 0
  • the embodiment of the present application describes the architecture of the communication network only in the case where the communication network includes one first network node, two first network nodes, and three first network nodes, and the communication network also There may be more than three first network nodes, that is, a plurality of intermediate network nodes, which are not limited in this embodiment of the present application.
  • the manner in which the first network node determines the first duration is similar to the manner in which the three first network nodes are included in the communication network, to avoid repetition, where No longer.
  • the S230 may determine, by the first network node, the first duration according to the first indication information; and the first network node sends the first data packet according to the first duration.
  • the first network node sends the first data packet according to the first duration, and the first network node may send the first data packet within a range of the first duration. That is, the certainty of the transmission of the first data packet in the first time period is guaranteed.
  • the first network node may complete the processing of the first data packet and send the first data packet before the end time of the first time duration.
  • the first network node may send the first data packet at an end time of the first duration, that is, if the first network node completes before the end of the first duration
  • the first network node may first store the first data packet until the end time of the first duration, and send the first data packet.
  • the first network node may start a timer, where the duration of the timer is the first duration, and after the timer expires, the first network node sends the first data. package.
  • the first network node in the communication network sends the first data packet according to the first duration in the first indication information, which is beneficial to ensure that the communication network transmits the first according to the duration requirement. data pack.
  • the first duration in the embodiment of the present application may further include that the first network node transmits the transmission duration of the first data packet.
  • the transmission duration includes from the first network node starting to send the first data packet to the next hop network node receiving the first data packet or The length of time that the first packet was received correctly.
  • the transmission duration includes receiving, by the fourth network node, the first data packet, and receiving, by the other network node in the service network, the first The duration of the packet or the correct receipt of the first packet.
  • the first indication information may further include at least one of a duration threshold and a duration jitter, where the duration threshold may include an upper duration limit and/or a lower duration limit, which is not limited in this embodiment of the present application.
  • the first network node sends the first data packet according to the first duration, and may be the first network node according to at least one of the duration threshold and the duration jitter, and the first duration. Send the first data packet.
  • the first network node sends the first data packet within the allowable duration threshold of the first duration or within the allowable duration jitter of the first duration.
  • the first network node sends the first data packet according to the second duration and the first time parameter, where the first network node may be configured according to the duration threshold and the duration jitter.
  • the first data packet is sent by the second time duration and the first time parameter.
  • the first network node transmits the first data packet within an allowable duration threshold of the second duration or within an allowable duration jitter of the second duration.
  • the method 200 further includes: the first network node acquiring deterministic transmission indication information, where the deterministic transmission indication information is used to indicate that the first network node performs deterministic transmission on the first data stream, That is, the first network node is instructed to transmit the data packet in the first data stream according to the requirement of the first time duration, where the first data packet includes the first data packet.
  • the S230 may be: the first network node sends the first data packet according to the first duration and the deterministic transmission indication information.
  • the communication network requires a high delay for the first data packet
  • the first data packet may be invalidated or expired. Therefore, when the first network node determines that the first data packet cannot be sent within the requirement of the first duration, the first network node may discard the first data packet, or the first network node may indicate to the second network node
  • the embodiment of the present application does not limit the length of time from the receipt of the first data packet to the transmission of the first data packet or the transmission failure.
  • the deterministic transmission indication information may explicitly indicate that the first network node performs deterministic transmission on the first data stream, or implicitly instructs the first network node to perform deterministic transmission on the first data stream, This embodiment of the present application does not limit this.
  • the deterministic transmission indication information is at least one bit, and the at least one bit indicates that the first network node performs deterministic transmission on the first data stream.
  • the 1 bit is “0", indicating that the first network node does not perform deterministic transmission on the first data stream, and the 1 bit is "1" to indicate the first network node. Deterministic transmission of the first data stream.
  • the first network node when the at least one bit exists, the first network node is instructed to perform deterministic transmission on the first data stream, and when the at least one bit does not exist, the first network node is instructed not to perform the first data stream Deterministic transmission.
  • Implicit indication mode the deterministic transmission indication information is an identifier of the first data stream, or the deterministic transmission indication information is the first duration.
  • the first network node may obtain the deterministic transmission indication information in multiple manners, which is not limited in this embodiment of the present application.
  • the first network node may obtain the deterministic transmission indication information carried in the first indication information.
  • the first network node may receive the third indication information, and obtain the deterministic transmission indication information according to the deterministic transmission indication information included in the third indication information.
  • the first indication information or the third indication further includes an identifier of the first data stream.
  • the first network node may transmit a data packet in the at least one data stream, where the at least one data stream includes the first data stream.
  • the data flow in the embodiment of the present application refers to a data packet set consisting of one or at least two data packets, which is a logical concept, and data packets belonging to the same data flow have the same or similar characteristics.
  • data packets having the same transceiver end such as data packets having the same internet protocol (IP) address, or data packets having the same or similar transmission duration requirements, or having the same data flow identifier
  • IP internet protocol
  • a packet can belong to a data stream.
  • the identifier of the data stream may be an identifier of the bearer where the data stream is located, or an identifier of the sending end and/or the receiving end of the data stream, or an identifier of the terminal device, or the data stream in the communication network.
  • the identifiers used to distinguish the data stream in the communication network are not limited in this embodiment of the present application.
  • the deterministic transmission indication information includes an identifier of the data stream, and the first network node can be distinguished when the communication network has multiple data flows required by different transmission durations.
  • the data stream is guaranteed, and the communication network is guaranteed to transmit the data packets in each data stream according to the duration of each data stream.
  • the first data stream includes at least two data packets that are transmitted by using the first transmission period, where the at least two data packets include the first data packet, where the first indication information further includes the first transmission period. information.
  • the first network node obtains the first time parameter, and may obtain a second time parameter for the first network node, where the second time parameter indicates a second time, where the second time is received by the third network node
  • the second data packet is the first data packet transmitted by the at least two data packets.
  • the first network node may determine the first moment according to the second moment and the first transmission period.
  • the second time parameter may be only carried in the second data packet, that is, the second data packet is sent by using the first data transmission period.
  • the other data packets outside need not carry the second time parameter or the first time parameter, which can reduce the transmission overhead.
  • the first network node may obtain the first time parameter in a plurality of manners, which is not limited by the embodiment of the present application.
  • the first network node may obtain the first time parameter carried by the first data packet.
  • the first time parameter may be included in a header information of a protocol data unit (PDU) layer, or the first time parameter may be included in a header of two first network node transmission protocols, for example : Internet protocol (IP), Ethernet frame header, user data protocol (UDP) or general packet radio service (GPRS) tunneling protocol (GTP) In the header.
  • IP Internet protocol
  • UDP user data protocol
  • GPRS general packet radio service tunneling protocol
  • the first time parameter may also be included in a packet header of the wireless protocol stack, for example, a service data adaption protocol (SDAP) layer and a packet data convergence protocol ( Packet data convergence protocol (PDCP), radio link control (RLC) or media access control (MAC) layer header.
  • SDAP service data adaption protocol
  • PDCP Packet data convergence protocol
  • RLC radio link control
  • MAC media access control
  • the first time parameter may also be included in the associated signaling of the data packet.
  • the first network node may receive the second indication information sent by the second network node, where the second indication information includes information about the first time parameter, where the first network node The first time parameter is obtained in the second indication information.
  • the first network node may receive the second indication information sent by the last hop network node of the first network node.
  • the first network node may receive, before S230, a transmission parameter that is used by the second network node to transmit a data packet in the first data stream, where the transmission parameter includes at least one activation identifier, the at least one At least one transmission period activated by the activation identifier and an identifier of a data packet transmitted using each of the at least one transmission period, the at least one transmission period including the first transmission period; and correspondingly, S230 may be: The first network node sends the first data packet according to the first indication information and the transmission parameter.
  • the first data stream may include a data packet transmitted by using one type of transmission or multiple transmission periods.
  • the at least one activation identifier may activate one transmission period or multiple transmission periods, which is not limited in this embodiment of the present application.
  • the identifier of the data packet sent by using the transmission period may be an identifier of the first data stream; when the number of the at least one transmission period is greater than 1, the multiple is adopted.
  • the identifier of the data packet sent in each transmission period in the transmission period may be an identifier of the data packet used to distinguish different transmission periods, which is not limited in this embodiment of the present application.
  • the transmission parameter may further include information of a time-frequency resource used by the data packet transmitted by using each of the transmission periods and/or a modulation and coding strategy of the data packet transmitted by using each of the transmission periods (modulation and coding) Scheme, MCS) information.
  • MCS modulation and coding
  • the transmission parameter may further include information for transmitting the second data packet and the target time-frequency resource of the third data packet and/or Or the information of the target MCS for transmitting the second data packet and the third data packet, where the second transmission period and the third transmission period are any two of a plurality of transmission periods, and the embodiment of the present application is This is not limited.
  • the transmission parameter may further include an expiration date or an effective duration of the activation identifier.
  • the transmission parameter may further include at least one deactivation identifier, information of at least one transmission period deactivated by the at least one deactivation identifier, and information sent in each transmission period of the at least one transmission period of the deactivation.
  • the identity of the packet may further include at least one deactivation identifier, information of at least one transmission period deactivated by the at least one deactivation identifier, and information sent in each transmission period of the at least one transmission period of the deactivation. The identity of the packet.
  • the at least one deactivation identifier may be used to deactivate one or more transmission periods, which is not limited in this embodiment of the present application.
  • the transmission parameter may further include other scheduling information for scheduling the data packet in the first data stream, which is not limited in this embodiment of the present application.
  • the manner of obtaining the information in the transmission parameter may be the same or different, which is not limited in this embodiment of the present application.
  • the first network node may obtain the transmission parameter carried in the first indication information; or may receive other indication information, where the other indication information carries the transmission parameter.
  • the first network node may receive scheduling information sent by the second network node, where the scheduling information carries information about a time-frequency resource used by the data packet sent in each transmission period, and/or the activated Information about the MCS used by the packets sent in each transmission cycle.
  • the first network node may obtain, by using the first transmission period, information about a time-frequency resource used for transmitting the second data packet, according to the first transmission period and a time-frequency resource used for transmitting the second data packet, Information of a time-frequency resource used by each data packet transmitted using the first transmission period is determined.
  • the second network node may send the transmission parameter to the first network node.
  • the first network node can know which kind or transmission periods are activated according to the transmission parameters, which data packets are transmitted by using each activated transmission period, and the data packets are transmitted.
  • the time-frequency resource and the MCS are used. Therefore, the first network node does not need to request scheduling information from the second network node when each data packet is sent, which can reduce the signaling overhead.
  • the method 200 further includes: the first network node reporting, to the second network node, transmission capability information, where the transmission capability information includes a quantity of transmission data supported by the first network node, a transmission rate supported by the first network node, The transmission reliability supported by the first network node and the duration supported by the first network node to receive the first data packet from the first network node to the first network node to send the first data packet.
  • the second network node may receive the transmission capability information reported by the first network node, and determine the first indication information of the first network node according to the transmission capability information.
  • the length of time that a data packet is sent to the first network node to send the first data packet may be: in the current environment, or in the current configuration of the first network node, the maximum transmission data amount of the first network node, the maximum The transmission rate, the maximum reliability, and the minimum length of time from the first network node to the first network node to the first network node to send the first data packet are not limited in this embodiment.
  • the first network node may periodically report the transmission capability information to the second network node; or the first network node may trigger the reporting of the transmission capability information to the second network node by using the first event, where the application is implemented.
  • the timing at which the first network node reports the transmission capability information is not limited.
  • the first event may be that the first network node receives the transmission capability information request sent by the second network node, or the first event may be that the first network node completes the sending of the first data packet, the application The embodiment does not limit this.
  • the method 200 further includes: the first network node sending, to the second network node, transmission response information, where the transmission response information is used to feedback that the transmission capability of the first network node is up to the first indication information The first duration, or the transmission response information is used to feedback that the transmission capability of the first network node cannot reach the first duration, or the transmission response information is used to feed back the transmission capability information supported by the first network node.
  • the first network node sends the first data packet according to the first duration, the first network node, according to the first duration, when the transmission capability of the first network node can reach the first duration Sending the first data packet.
  • the embodiment of the present application is applicable to the scenario of the uplink transmission or the scenario of the downlink transmission, which is not limited in this embodiment of the present application.
  • the first network node sends the first data packet, which may be understood to be that the first network node sends the first data packet along an uplink direction; in a downlink transmission scenario, The first network node sends the first data packet, which can be understood as the first network node sending the first data packet along the downlink direction.
  • FIG. 6 is a schematic flowchart of another method 600 for data transmission provided by an embodiment of the present application.
  • the method 600 can be applied, for example, to a communication network as shown in FIG.
  • the first network node reports the transmission capability information to the second network node, where the transmission capability information includes the amount of transmission data supported by the first network node, the transmission rate supported by the first network node, and the transmission reliability supported by the first network node.
  • the length of time that a data packet is sent to the first network node to send the first data packet may be: in the current environment, or in the current configuration of the first network node, the maximum transmission data amount of the first network node, the maximum The transmission rate, the maximum reliability, and the minimum length of time from the first network node to the first network node to the first network node to send the first data packet are not limited in this embodiment.
  • the first network node may periodically report the transmission capability information to the second network node; or the first network node may trigger the reporting of the transmission capability information to the second network node by using the first event, where the application is implemented.
  • the timing at which the first network node reports the transmission capability information is not limited.
  • the first event may be that the first network node receives the transmission capability information request sent by the second network node, or the first event may be that the first network node completes the sending of the first data packet, the application The embodiment does not limit this.
  • the second network node determines, according to the transmission capability information, the first indication information, where the first indication information is used by the first network node to determine a first duration, where the first duration is received from the first network node. Transmitting, by the first data packet, the first data packet to the first network node; correspondingly, the first network node receives the first indication information sent by the second network node.
  • the second network node sends the first indication information to the first network node.
  • the first network node receives the first indication information.
  • the first network node sends the first data packet according to the first indication information.
  • the first network node may determine the first duration according to the first indication information; and the first network node sends the first data packet according to the first duration.
  • the first network node sends the first data packet according to the first duration, where the first network node sends the first data packet before the end time of the first duration, or the first The network node sends the first data packet at the end of the first time period, which is not limited in this embodiment of the present application.
  • the first indication information further includes deterministic transmission indication information, where the deterministic transmission indication information is used to indicate that the first network node performs deterministic transmission on the first data stream, that is, the first network node is instructed to follow the The first duration requires transmission of a data packet in the first data stream, wherein the first data packet includes the first data packet.
  • the first network node sends the first data packet according to the first duration and the deterministic transmission indication information.
  • the first network node may discard the first data packet, or the first network node may indicate to the sending end
  • the first network node may discard the first data packet, or the first network node may indicate to the sending end
  • the data flow in the embodiment of the present application refers to a data packet set consisting of one or more data packets, which is a logical concept, and data packets belonging to the same data flow have the same or similar features.
  • a data packet having the same transceiver end such as a data packet having the same internet protocol (IP) address, or a data packet having the same or similar transmission duration requirement may belong to one data stream.
  • IP internet protocol
  • the identifier of the data stream may be an identifier of the bearer where the data stream is located, or an identifier of the sending end and/or the receiving end of the data stream, or an identifier of the terminal device, or the data stream in the communication network.
  • the identifiers used to distinguish the data stream in the communication network are not limited in this embodiment of the present application.
  • FIG. 7 is a schematic block diagram of an apparatus 700 for data transmission provided by an embodiment of the present application.
  • the device 700 includes:
  • the receiving unit 710 is configured to receive first indication information that is sent by the second network node, where the first indication information is used to determine a first duration, where the first duration is that the first data packet is received from the device, and the device sends the first The length of a packet;
  • the sending unit 720 is configured to send the first data packet according to the first indication information received by the receiving unit.
  • the apparatus 700 further includes a processing unit 730, configured to determine the first duration according to the first indication information received by the receiving unit, where the sending unit is specifically configured to determine, according to the processing unit For a period of time, the first data packet is sent.
  • a processing unit 730 configured to determine the first duration according to the first indication information received by the receiving unit, where the sending unit is specifically configured to determine, according to the processing unit For a period of time, the first data packet is sent.
  • the first data packet is a data packet in the first data stream
  • the first indication information includes an identifier of the first data stream
  • the first indication information includes the numerical information of the first duration.
  • the first indication information includes value information of a second duration, where the second duration is a length of time from the third network node receiving the first data packet to the fourth network node sending the first data packet, where The third network node is the first network node in the communication network that transmits the first data packet, and the fourth network node is the last network node in the communication network that transmits the first data packet, and the communication network includes the device And the second network node, the device further includes: an obtaining unit, configured to acquire a first time parameter, where the first time parameter is instructed before the first data packet is sent according to the first indication information The first time is the time when the third network node receives the first data packet, and the third time is the first data packet received from the third network node, and the device receives the first data packet.
  • the duration of the first data packet; the sending unit is specifically configured to send the first data packet according to the first indication information and the first time parameter.
  • the acquiring unit is configured to obtain the first time parameter that is carried by the first data packet, or the receiving unit is further configured to receive the second indication information, where the second indication information includes the first time parameter; The obtaining unit is configured to obtain the first time parameter from the second indication information.
  • the first data stream includes at least two data packets that are transmitted by using the first transmission period, where the at least two data packets include the first data packet, where the first indication information further includes the first transmission period. information.
  • the acquiring unit is further configured to acquire a second time parameter, where the second time parameter indicates a second time, where the second time is received by the third network node.
  • the second data packet is a data packet that is transmitted by the first one of the at least two data packets; the processing unit is configured to acquire the first data according to the second time and the first transmission period Time parameter.
  • the first data packet is a data packet in the first data stream
  • the acquiring unit is further configured to: before the sending the first data packet according to the first indication information, acquire and transmit the first data stream.
  • a transmission parameter used in the data packet the transmission parameter including at least one activation identifier, at least one transmission period activated by the at least one activation identifier, and an identifier of a data packet transmitted using each of the at least one transmission period
  • the at least one transmission period includes the first transmission period; the sending unit is specifically configured to send the first data packet according to the first indication information and the transmission parameter.
  • the sending unit is further configured to report, to the second network node, transmission capability information, where the transmission capability information includes an amount of transmission data supported by the device, a transmission rate supported by the device, a transmission reliability supported by the device, and the The device supports at least one of receiving the first data packet from the device to the device to send the first data packet.
  • the transmission capability information includes an amount of transmission data supported by the device, a transmission rate supported by the device, a transmission reliability supported by the device, and the The device supports at least one of receiving the first data packet from the device to the device to send the first data packet.
  • the first indication information includes at least one of a duration threshold and a duration jitter.
  • the apparatus 700 herein is embodied in the form of a functional unit.
  • the term "unit” as used herein may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (eg, a shared processor, a proprietary processor, or a group) for executing one or more software or firmware programs. Processors, etc.) and memory, merge logic, and/or other suitable components that support the described functionality.
  • ASIC application specific integrated circuit
  • processor eg, a shared processor, a proprietary processor, or a group
  • processors, etc. and memory, merge logic, and/or other suitable components that support the described functionality.
  • the apparatus 700 may be specifically the first network node in the foregoing method 200 and the method 600, and the apparatus 700 may be used to perform the foregoing method 200 and method 600 in the embodiment.
  • the various processes and/or steps corresponding to the first network node are not repeated here to avoid repetition.
  • FIG. 8 is a schematic block diagram of an apparatus 1200 for data transmission provided by an embodiment of the present application.
  • the device 1300 includes:
  • the processing unit 810 is configured to determine first indication information, where the first indication information is used for determining the first duration, where the first duration is that the first data packet is received from the first network node, and the first network node sends the first The length of a packet;
  • the sending unit 820 is configured to send the first indication information to the first network node.
  • the first data packet is a data packet in the first data stream
  • the first indication information includes an identifier of the first data stream
  • the first indication information includes the numerical information of the first duration.
  • the first indication information includes value information of a second duration, where the second duration is a length of time from the third network node receiving the first data packet to the fourth network node sending the first data packet, where The third network node is the first network node in the communication network that transmits the first data packet, and the fourth network node is the last network node in the communication network that transmits the first data packet, and the communication network includes the device And the second network node.
  • the first data stream includes at least two data packets that are transmitted by using the first transmission period, where the at least two data packets include the first data packet, where the first indication information further includes the first transmission period. information.
  • the first data packet is a data packet in the first data stream, where the first information further includes a transmission parameter used when transmitting the data packet in the first data stream, where the transmission parameter includes at least one activation. Identifying, at least one transmission period activated by the at least one activation identifier, and an identifier of a data packet transmitted using each of the at least one transmission period, the at least one transmission period including the first transmission period.
  • the first indication information includes at least one of a duration threshold and a duration jitter.
  • the device further includes: a receiving unit, configured to receive the transmission capability information reported by the first network node, where the transmission capability information includes the amount of transmission data supported by the first network node, and the first network node a supported transmission rate, a transmission reliability supported by the first network node, and a duration supported by the first network node to receive the first data packet from the first network node to the first network node to send the first data packet
  • a receiving unit configured to receive the transmission capability information reported by the first network node, where the transmission capability information includes the amount of transmission data supported by the first network node, and the first network node a supported transmission rate, a transmission reliability supported by the first network node, and a duration supported by the first network node to receive the first data packet from the first network node to the first network node to send the first data packet
  • the processing unit is specifically configured to determine the first indication information according to the transmission capability information.
  • the apparatus 800 herein is embodied in the form of a functional unit.
  • the term "unit" as used herein may refer to an ASIC, an electronic circuit, a processor (eg, a shared processor, a proprietary processor or a group processor, etc.) and memory, a merge logic, and a processor for executing one or more software or firmware programs. / or other suitable components that support the described functionality.
  • the apparatus 800 may be specifically the second network node in the foregoing method 200 and the method 600, and the apparatus 800 may be used to perform the foregoing method 200 and method 600 in the embodiment.
  • the various processes and/or steps corresponding to the second network node are not repeated here to avoid repetition.
  • FIG. 9 shows an apparatus 900 for data transmission provided by an embodiment of the present application.
  • the apparatus 900 may be the first network node described in FIG. 1 and FIG. 2, and the apparatus 900 may adopt a hardware architecture as shown in FIG. 9.
  • the apparatus can include a processor 910, a transceiver 920, and a memory 930, the processor 910, the transceiver 920, and the memory 930 communicating with one another via internal connection paths.
  • the related functions implemented by the processing unit 730 in FIG. 7 may be implemented by the processor 910, and the related functions implemented by the transmitting unit 720 and the receiving unit 710 may be implemented by the processor 910 controlling the transceiver 920.
  • the processor 910 may include one or more processors, for example, including one or more central processing units (CPUs).
  • processors for example, including one or more central processing units (CPUs).
  • CPUs central processing units
  • the CPU may be a single core CPU, and It can be a multi-core CPU.
  • the transceiver 920 is configured to transmit and receive data and/or signals, as well as to receive data and/or signals.
  • the transceiver can include a transmitter and a receiver for transmitting data and/or signals, and a receiver for receiving data and/or signals.
  • the memory 930 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read only memory (EPROM), and a read only memory.
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable programmable read only memory
  • CD-ROM compact disc read-only memory
  • the memory 930 is used to store the program code and data of the device, and may be a separate device or integrated in the processor 910.
  • the processor 910 is configured to control the transceiver to perform information transmission with the second network node.
  • the processor 910 is configured to control the transceiver to perform information transmission with the second network node.
  • Figure 9 only shows a simplified design of the device.
  • the device may also include other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all devices that can implement the present application are within the scope of the present application.
  • device 900 can be replaced with a chip device, such as a communication chip that can be used in the device for implementing the relevant functions of processor 910 in the device.
  • the chip device can be a field programmable gate array for implementing related functions, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, or a programmable controller or other integrated chip.
  • the chip may include one or more memories for storing program code that, when executed, causes the processor to perform the corresponding functions.
  • FIG. 10 shows an apparatus 1000 provided by an embodiment of the present application.
  • the apparatus 1000 may be the second network node described in FIG. 1 and FIG. 2, and the apparatus 1000 may adopt a hardware architecture as shown in FIG.
  • the apparatus can include a processor 1010, a transceiver 1020, and a memory 1030 that communicate with one another via internal connection paths.
  • the related functions implemented by the processing unit 810 in FIG. 8 may be implemented by the processor 1010, and the related functions implemented by the transmitting unit 820 may be implemented by the processor 1010 controlling the transceiver 1020.
  • the processor 1010 may include one or more processors, for example, including one or more CPUs.
  • the processor may be a single core CPU or a multi-core CPU.
  • the transceiver 1020 is configured to transmit and receive data and/or signals, as well as to receive data and/or signals.
  • the transceiver can include a transmitter and a receiver for transmitting data and/or signals, and a receiver for receiving data and/or signals.
  • the memory 1030 includes, but is not limited to, a RAM, a ROM, an EPROM, a CD-ROM, and the memory 1030 is used to store related instructions and data.
  • the memory 1030 is used to store the program code and data of the device, and may be a separate device or integrated in the processor 1010.
  • the processor 1010 is configured to control, by the transceiver, information transmission with the first network node.
  • the processor 1010 is configured to control, by the transceiver, information transmission with the first network node.
  • Figure 10 only shows a simplified design of the device.
  • the device may also include other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all devices that can implement the present application are within the scope of the present application.
  • the device may also include other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all devices that can implement the present application are within the scope of the present application.
  • device 1000 can be replaced with a chip device, such as a communication chip that can be used in the device for implementing the relevant functions of processor 1010 in the device.
  • the chip device can be a field programmable gate array for implementing related functions, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, or a programmable controller or other integrated chip.
  • the chip may include one or more memories for storing program code that, when executed, causes the processor to perform the corresponding functions.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本申请提供了一种数据传输的方法和装置，该方法包括：第一网络节点接收第二网络节点发送的第一指示信息，所述第一指示信息用于所述第一网络节点确定第一时长，所述第一时长为从所述第一网络节点接收到第一数据包至所述第一网络节点发送所述第一数据包的时长；所述第一网络节点根据所述第一指示信息，发送所述第一数据包。本申请实施例提供的数据传输的方法和装置，有利于保障通信网络按照时长要求传输数据包。

Description

数据传输的方法和装置
本申请要求于2017年12月08日提交中国专利局、申请号为201711290539.5、申请名称为“数据传输的方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，更具体地，涉及通信领域中数据传输的方法和装置。
背景技术
随着通信技术的不断发展，采用无线通信网络，尤其是采用蜂窝网络承载数据包可以简化网络拓扑、降低布网开销、支持设备的移动场景等，在很多领域中得到了广泛应用。当该无线通信网络承载有对传输的时长要求较高的数据包时，需要该无线通信网络中负责传输数据包的各个网络节点提供能够满足时长要求的传输服务。
因此，需要提供一种技术方案解决如何保障通信网络按照时长要求传输数据包的问题。
发明内容
本申请提供一种数据传输的方法和装置，有利于保障通信网络按照时长要求传输数据包。
第一方面，本申请实施例提供了一种数据传输的方法，该方法包括：
第一网络节点接收第二网络节点发送的第一指示信息，该第一指示信息用于该第一网络节点确定第一时长，该第一时长为从该第一网络节点接收到第一数据包至该第一网络节点发送该第一数据包的时长；
该第一网络节点根据该第一指示信息，发送该第一数据包。
本申请实施例提供的数据传输的方法，通信网络中的第一网络节点根据第一指示信息中的第一时长，发送该第一数据包，有利于保障该通信网络按照时长要求传输该第一数据包。
在一种可能的实现方式中，在第一网络节点接收第二网络节点发送的第一指示信息之前，该方法还包括：该第一网络节点获取确定性传输指示信息，该确定性传输指示信息用于指示该第一网络节点对第一数据流进行确定性传输，即指示该第一网络节点按照该第一时长的要求传输该第一数据流中的数据包，其中该第一数据流中包括该第一数据包。相应地，该S230可以为：该第一网络节点根据该第一时长和该确定性传输指示信息，发送该第一数据包。
应理解，由于通信网络对该第一数据包的时延要求较高，如果为按照第二网络节点指示的时长要求传输该第一数据包，可能会导致该第一数据包失效或过期。
可选地，当第一网络节点确定不能在第一时长的要求内发送该第一数据包时，第一网络节点可以丢弃该第一数据包，或第一网络节点可以向该第二网络节点指示所述第一网络节点支持的从接收到所述第一数据包至发送所述第一数据包的时长或者指示传输失败等，本申请实施例对此不做限定。
在一种可能的实现方式中，该第一数据包为第一数据流中的数据包，该第一指示信息中包括该第一数据流的标识。
应理解，本申请实施例中的数据流是指由一个或者至少两个数据包组成的数据包集合，是一个逻辑的概念，属于同一个数据流的数据包具有相同或相近的特征。
可选地，具有相同的收发端的数据包，例如具有相同的互联网协议(internet protocol，IP)地址的数据包，或具有相同或相近的传输时长要求的数据包，或具有相同的数据流标识的数据包可以属于一个数据流。
可选地，该数据流的标识可以为该数据流所在的承载的标识，或该数据流的发送端和/或接收端的标识，或者终端设备的标识，或在该通信网络中为该数据流分配的用以在该通信网络内部区分该数据流的标识等，本申请实施例对此不作限定。
本申请实施例提供的数据传输的方法，该确定性传输指示信息包括数据流的标识，能够使得当通信网络中具有多个不同传输时长要求的数据流时，该第一网络节点可以区分不同的数据流，并保障该通信网络按照每个数据流的时长要求传输该每个数据流中的数据包。
在一种可能的实现方式中，该第一指示信息中包括该第一时长的数值信息。
可选地，该第一网络节点根据该第一指示信息，发送该第一数据包，可以为：该第一网络节点根据该第一指示信息，确定该第一时长；该第一网络节点根据该第一时长，发送该第一数据包。
在一种可能的实现方式中，该第一指示信息中包括第二时长的数值信息，该第二时长为从第三网络节点接收到该第一数据包至第四网络节点发送该第一数据包的时长，该第三网络节点为通信网络中第一个传输该第一数据包的网络节点，该第四网络节点为该通信网络中最后一个传输该第一数据包的网络节点，且该通信网络包括该第一网络节点和该第二网络节点，在该第一网络节点根据该第一指示信息，发送该第一数据包之前，该方法还包括：该第一网络节点获取第一时间参数，该第一时间参数指示第一时刻或第三时长，该第一时刻为该第三网络节点接收到该第一数据包的时刻，该第三时长为从该第三网络节点接收到该第一数据包至该第一网络节点接收到该第一数据包的时长；该第一网络节点根据该第一指示信息，发送该第一数据包，包括：该第一网络节点根据该第一指示信息和该第一时间参数，发送该第一数据包。
可选地，该第一网络节点根据该第一指示信息和该第一时间参数，发送该第一数据包，可以为：该第一网络节点根据该第二时长和该第一时间参数，确定该第一时长；该第一网络节点根据该第一时长，发送该第一数据包。
在一种可能的实现方式中，该第一指示信息中包括第四时长的数值信息，该第四时长为从该第一网络节点接收到该第一数据包至该第四网络节点发送该第一数据包的时长。
可选地，该第一网络节点根据该第一指示信息，发送该第一数据包，可以为：该第一网络节点根据该第四时长，确定该第一时长；该第一网络节点根据该第一时长，发送该第 一数据包。
在一种可能的实现方式中，该第一网络节点获取第一时间参数，包括：该第一网络节点获取该第一数据包携带的该第一时间参数；或该第一网络节点接收第二指示信息，该第二指示信息中包括该第一时间参数；该第一网络节点从该第二指示信息中获取该第一时间参数。
在一种可能的实现方式中，第一数据流中包括采用第一传输周期传输的至少两个数据包，该至少两个数据包中包括该第一数据包，该第一指示信息还包括该第一传输周期的信息。
在一种可能的实现方式中，该第一时间参数指示该第一时刻时，该第一网络节点获取第一时间参数，包括：该第一网络节点获取第二时间参数，该第二时间参数指示第二时刻，该第二时刻为该第三网络节点接收到第二数据包的时刻，该第二数据包为该至少两个数据包中第一个被传输的数据包；该第一网络节点根据该第二时刻和该第一传输周期，确定该第一时间参数。
在一种可能的实现方式中，该第一数据包为第一数据流中的数据包，在该第一网络节点根据该第一指示信息，发送该第一数据包之前，该方法还包括：该第一网络节点获取传输该第一数据流中的数据包时所使用的传输参数，该传输参数包括至少一个激活标识、该至少一个激活标识激活的至少一种传输周期和采用该至少一种传输周期中每种传输周期发送的数据包的标识，该至少一种传输周期包括该第一传输周期；该第一网络节点根据该第一指示信息，发送该第一数据包，包括：该第一网络节点根据该第一指示信息和该传输参数，发送该第一数据包。
可选地，该传输参数还可以包括采用该每种传输周期发送的数据包所使用的时频资源的信息和/或采用该每种传输周期发送的数据包的调制与编码策略(modulation and coding scheme，MCS)的信息。
可选地，当该至少一种传输周期的数量为多种，且采用第二传输周期发送的第二数据包和采用第三传输周期发送的第三数据包的发送时间点重合(即该第二数据包的时频资源和该第三数据包的时频资源冲突)时，该传输参数还可以包括用于传输该第二数据包和该第三数据包的目标时频资源的信息和/或用于传输该第二数据包和该第三数据包的目标MCS的信息，其中，该第二传输周期和该第三传输周期为多种传输周期中的任意两种，本申请实施例对此不作限定。
本申请实施例提供的数据传输的方法，第一网络节点根据传输参数可以获知哪种或哪几种传输周期被激活，采用每种被激活的传输周期传输哪些数据包，以及传输这些数据包所使用的时频资源和MCS，因此，该第一网络节点无需在发送每个数据包的时候，向该第二网络节点请求调度信息，能够减少信令的开销。
在一种可能的实现方式中，该方法还包括：该第一网络节点向该第二网络节点上报传输能力信息，该传输能力信息包括该第一网络节点支持的传输数据量、该第一网络节点支持的传输速率、该第一网络节点支持的传输可靠性和该第一网络节点支持的从该第一网络节点接收到该第一数据包至该第一网络节点发送该第一数据包的时长中的至少一项。
本申请实施例提供的数据传输的方法，该第二网络节点可以结合该第一网络节点上报的传输能力信息，确定该第一指示信息，能够避免由于第一网络节点的传输能力达不到第 二网络节点指示的时长要求，导致通信网络不能按照时长要求传输数据包。
在一种可能的实现方式中，该第一指示信息中包括时长门限和时长抖动中的至少一项。
也就是说，该第一网络节点可以在该第一时长的可允许的时长门限范围内，或在该第一时长的可允许的时长抖动范围内，发送该第一数据包。
也就是说，该第一网络节点可以在该第二时长的可允许的时长门限范围内，或在该第二时长的可允许的时长抖动范围内，发送该第一数据包。
第二方面，本申请提供了一种数据传输的方法，该方法包括：
第二网络节点确定第一指示信息，该第一指示信息用于第一时长的确定，该第一时长为从第一网络节点接收到第一数据包至该第一网络节点发送该第一数据包的时长；
该第二网络节点向该第一网络节点发送该第一指示信息。
在一种可能的实现方式中，该方法还包括：该第二网络节点接收该第一网络节点上报的传输能力信息，该传输能力信息包括该第一网络节点支持的传输数据量、该第一网络节点支持的传输速率、该第一网络节点支持的传输可靠性和该第一网络节点支持的从该第一网络节点接收到该第一数据包至该第一网络节点发送该第一数据包的时长中的至少一项；该第二网络节点确定该第一网络节点的第一指示信息，包括：该第二网络节点根据该传输能力信息，确定该第一指示信息。
第三方面，本申请提供了一种数据传输的装置，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第四方面，本申请提供了一种数据传输的装置，用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第五方面，本申请提供了一种数据传输的装置，该装置包括：存储器、处理器、收发器及存储在该存储器上并可在该处理器上运行的指令，其中，该存储器、该处理器以及该通信接口之间通过内部连接通路互相通信，其特征在于，该处理器执行该指令使得该装置实现上述第一方面或第一方面的任意可能的实现方式中的方法。
第六方面，本申请提供了一种数据传输的装置，该装置包括：存储器、处理器、收发器及存储在该存储器上并可在该处理器上运行的指令，其中，该存储器、该处理器以及该通信接口之间通过内部连接通路互相通信，其特征在于，该处理器执行该指令使得该装置实现上述第二方面或第二方面的任意可能的实现方式中的方法。
第七方面，本申请提供了一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于实现上述第一方面或第一方面的任意可能的实现方式中的方法的指令。
第八方面，本申请提供了一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于实现上述第二方面或第二方面的任意可能的实现方式中的方法的指令。
第九方面，本申请提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机实现上述第一方面或第一方面的任意可能的实现方式中的方法。
第十方面，本申请提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机实现上述第二方面或第二方面的任意可能的实现方式中的方法。
第十一方面，本申请提供了一种芯片装置，包括：输入接口、输出接口、至少一个处理器、存储器，该输入接口、输出接口、该处理器以及该存储器之间通过内部连接通路互 相通信，该处理器用于执行该存储器中的代码，当该处理器执行该代码时，该芯片装置实现上述第一方面或第一方面的任意可能的实现方式中的方法。
第十二方面，本申请提供了一种芯片装置，包括：输入接口、输出接口、至少一个处理器、存储器，该输入接口、输出接口、该处理器以及该存储器之间通过内部连接通路互相通信，该处理器用于执行该存储器中的代码，当该处理器执行该代码时，该芯片装置实现上述第二方面或第二方面的任意可能的实现方式中的方法。
附图说明
图1是本申请实施例提供的通信网络的示意性框图；
图2是本申请实施例提供的数据传输的方法的示意性流程图；
图3是本申请实施例提供的一种通信网络的架构示意图；
图4是本申请实施例提供的另一种通信网络的架构示意图；
图5是本申请实施例提供的又一种通信网络的架构示意图；
图6是本申请实施例提供的另一数据传输的方法的示意性流程图；
图7是本申请实施例提供的数据传输的装置的示意性框图；
图8是本申请实施例提供的另一数据传输的装置的示意性框图；
图9是本申请实施例提供的又一数据传输的装置的示意性框图；
图10是本申请实施例提供的又一数据传输的装置的示意性框图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
图1示出了本申请实施例提供的通信网络100的示意性框图。如图1所示，该通信网络100包括至少一个第一网络节点(图1中示出了第一网络节点110)和至少一个第二网络节点(图1中示出了第二网络节点120)。
可选地，本申请实施例中所述的通信网络可以为无线通信网络，具体地，可以为无线蜂窝网络，但本申请实施例不限于此。
第一网络节点110用于对数据包进行传输/路由。
第二网络节点120用于控制该第一网络节点对数据包进行传输/路由。例如，收集该第一网络节点在数据包传输/路由过程中的处理数据包的时长，配置第一网络节点处理数据包的时长等。可选地，该第二网络节点还可以用于对数据包的传输/路由。
应理解，在该通信网络中，一个第二网络节点可以控制一个或多个第一网络节点对数据包进行传输/路由，本申请实施例对此不作限定。
可选地，该通信网络中还可以包括其他能够对数据包进行传输/路由的实体，本申请实施例对此不作限定。
可选地，本申请实施例中的第一网络节点可以沿上行方向传输数据包，或者可以沿下行方向传输数据包，其中，上行方向指终端设备向网络侧设备发送数据包的方向，下行方向指网络侧设备向终端设备发送数据包的方向，本申请实施例对此不作限定。
下面以蜂窝网络为例，对本申请实施例中的通信网络进行介绍。
可选地，数据包生成装置生成数据包，并将该数据包发送至通信网络中的第三网络节 点；该数据包经过该通信网络中负责传输/路由该数据包的每个中间网络节点的传输，到达该通信网络中的第四网络节点；该通信网络中的第四网络节点向其它通信网络中的其它网络节点发送该数据包，其中，该第四网络节点为位于底层的通信网络的网络节点，该其它网络节点为位于高层的应用网络的网络节点。
应理解，本申请实施例中，当该通信网络中包括两个第一网络节点时，第一个传输该数据包的第一网络节点称为第三网络节点，最后一个传输该数据包的第一网络节点称为第四网络节点；当该通信网络中包括两个以上第一网络节点时，第一个传输该数据包的第一网络节点称为第三网络节点，最后一个传输该数据包的第一网络节点称为第四网络节点，在该第三网络节点和该第四网络节点之间传输该数据包的第一网络节点称为中间网络节点。
还应理解，该通信网络是指用于数据包传输/路由的网络，不包含业务数据包的生成和业务数据包的解析节点。例如：工业场景中的PLC和位于高层的应用网络的网络节点。
可选地，该第四网络节点为终端设备时，该终端设备在逻辑上可以被分为位于底层的通信模块(或称为蜂窝模块)，和位于高层的工业应用模块。其中，该第四网络节点可以理解为该终端设备的通信模块，该其它网络节点可以理解为该终端设备的工业应用模块。
可选地，在沿上行方向传输数据包的场景下，该数据包生成装置可以为UE的工业应用模块，在沿下行方向传输数据包的场景下，该数据包生成装置可以为工厂的控制设备或者工业的输入/输出设备，例如：可编程逻辑控制器(programmable logic controller，PLC)，本申请实施例对此不作限定。
可选地，本申请实施例中的底层可以包括物理(physical，PHY)层、MAC层、RLC层、PDCP层、SDAP层中的至少一层，高层可以包括传输层、应用层、PDCP层、SDAP层或者以太网数据链路层中的至少一层，本申请实施例对此不作限定。
可选地，该通信网络还可以为包含蜂窝网络的工业传输网络，该通信网络中的第一个传输数据包的网络节点为生成该数据包的网络节点，该通信网络中最后一个传输该数据包的网络节点为该数据包的接收端，其中该生成数据包的网络节点通过蜂窝网络将该数据包传输至该数据包的接收端，本申请实施例对此不作限定。
应理解，本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(global system of mobile communication，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(wideband code division multiple access，WCDMA)系统、通用分组无线业务(general packet radio service，GPRS)、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、无线局域网(wireless local area network，WLAN)或未来第五代无线通信系统(the fifth Generation，5G)或后续的无线传输的各种演进系统等。
可选地，该第一网络节点和/或该第二网络节点还可以为能够实现特定的网络功能的实体，本申请实施例对此不作限定。
下面以5G通信系统为例，对该通信网络中的第一网络节点和第二网络节点作一介绍，但本申请实施例不限于此。
可选地，该第一网络节点可以为用户设备(user equipment，UE)、接入网(access network，AN)设备、用户面功能(user plane function，UPF)等，本申请实施例对此不作限定。
可选地，该第二网络节点可以为AN、接入和移动性管理功能(access and mobility management function，AMF)、会话管理功能(session management function，SMF)、鉴权服务功能(authentication server function，AUSF)、统一数据管理(unified data management，UDM)、分组控制功能块(packet control function，PCF)等，或者该第二网络节点可以为中心用户配置(centralized user configuration，CUC)节点、中心网络配置(centralized network configuration，CNC)节点等，本申请实施例对此不作限定。
例如：在该通信网络中，UE、AN和UPF为第一网络节点，AMF为第二网络节点，其中，该AMF控制该UE、该AN和该UPF对数据包进行传输/路由。
又例如，在该通信网络中，UE和AN为第一网络节点，AMF和SMF为第二网络节点，其中，该AMF控制该UE对数据包进行传输/路由，该SMF控制该AN对数据包进行传输/路由。
又例如，在该通信网络中，UE为第一网络节点，AN为第二网络节点，其中该AN控制该UE对数据包进行传输/路由，同时该AN还可以负责与该UE共同完成对数据包的传输/路由。
又例如，在该通信网络中，第一UE为第一网络节点，第二UE为第二网络节点，这两个UE之间直接完成通信，即由其中的一个UE(称为主UE)控制另一个UE(称为主UE)对数据包进行传输/路由。
下面以5G通信系统为例，对可能实现该第一网络节点和该第二网络节点的功能的网络实体的主要功能作一介绍：
AN的主要功能为：无线资源调度和管理、向UPF转发用户面报文、向AMF转发控制面信息、会话管理、服务质量(quality of service，QoS)流管理、将QoS流映射到相应的无线承载等。
该UPF的主要功能为：用户面报文转发、用户面策略规则执行、用户面传输的QoS管理。
AMF的主要功能为：注册管理、连接管理、可达性管理、连接管理、接入的鉴权和授权、为UE和SMF间传递SM消息。
SMF的主要功能为：会话管理、UE的IP地址分配和管理、UPF的选择和控制、控制UPF转发流量的目的地、控制方面的策略执行和QoS管理。
AUSF的主要功能为：鉴权凭据处理、用户标识处理、接入授权、注册/移动性管理、订阅管理。
UDM包括前端(front end，FE)和用户数据库(user data repository，UDR)。其中，FE负责信用评级处理、位置管理、订阅管理等功能，并可以访问存储在UDR中的用户订阅数据，UDR是一个用户订阅数据存储服务器，负责向前端提供用户订阅数据。
可选地，该第一网络节点和/或该第二网络节点可以为网络设备中能够实现特定的层功能的实体，本申请实施例对此不作限定。
作为一个可选的实施例，该第一网络节点可以为第一网络设备中传输层对应的实体， 该第二网络节点可以为第二网络设备中应用层对应的实体。
可选地，该第一网络设备与该第二网络设备可以相同也可以不同，本申请实施例对此不作限定。
可选地，本申请实施例中的UE可以是移动的或固定的。该UE可以指接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。接入终端可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、未来5G网络、NR网络或后续的无线传输的各种演进系统中的UE等。
可选地，本申请实施例中的AN可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的UE进行通信。该AN可以是GSM系统或CDMA系统中的基站(base transceiver station，BTS)，也可以是WCDMA系统中的基站(nodeB，NB)，还可以是LTE系统中的演进型基站(evolved node B，eNB或eNodeB)，或者是AN中的无线控制器。该接入网设备还可以为核心网、中继站、接入点、车载设备、可穿戴设备、未来5G网络、NR网络或后续的无线传输的各种演进系统中的AN等可以通过无线信号传输的方式完成UE进行通信的设备。
可选地，本申请实施例仅以5G为例，对该通信网络中的第一网络节点和第二网络节点进行介绍，该第一网络节点与该第二网络节点还可以为其他通信系统(例如GSM、CDMA、LTE等)中能够实现与在5G通信系统中相同功能的网络实体，本申请实施例对此不作限定。
图2是本申请实施例提供的数据传输的方法200的示意性流程图，该方法200可以应用于如图1中所述的通信网络100。
S210，第二网络节点确定第一网络节点的第一指示信息，该第一指示信息用于该第一网络节点确定第一时长，该第一时长为从该第一网络节点接收到第一数据包至该第一网络节点发送该第一数据包的时长。
S220，该第二网络节点向第一网络节点发送第一指示信息；相应地，该第一网络节点接收该第二网络节点发送的该第一指示信息。
S230，该第一网络节点根据该第一指示信息，发送该第一数据包。
应理解，该通信网络为蜂窝网络时，该第一时长可以理解为该第一网络节点对该第一数据包进行处理所需的处理时长。
可选地，该第一网络节点对该第一数据包进行的处理可以包括解封装、封装、存储、分割、级联、排序、映射、路由等中的至少一项，本申请实施例对此不作限定。
可选地，若该通信网络中包括蜂窝网络时，对于该通信网络中第一个传输该第一数据包的网络节点，该第一时长可以理解为该第一个传输该第一数据包的网络节点生成该第一数据包所需的时长；对于该通信网络中最后一个传输该第一数据包的网络节点，该第一时长可以理解为该最后一个传输该第一数据包的网络节点接收该第一数据包所需的时长。
下面将以蜂窝网络为例对本申请的技术方案进行介绍，但应理解，本申请实施例并不限于应用于蜂窝网络。
例如，如图3所示，t 0为该第一网络节点接收到该第一数据包的时刻，t 1为该第一网络节点发送该第一数据包的时刻，则该第一时长T 1＝t 1-t 0。
可选地，本申请实施例中的各种时长可以为绝对时长，例如小时(hour)、分钟(minute)、秒钟(second)、毫秒(millisecond)、微秒(microsecond)、纳秒(nanosencond)等；或者本申请实施例中的各种时长可以为该通信网络中的时间单元所表示的绝对时长，该时间单元可以为帧(frame)、子帧(sub frame)、时隙(slot)、微时隙(microslot)、符号(symbol)等。
例如，若该第一时长为1min，且该第一网络节点于2017年11月11日12时30分18秒接收到该第一数据包，则该第一网络节点应在2017年11月11日12时31分18秒发送该第一数据包。
又例如，若该第一时长为1frame(即10ms)，且该第一网络节点于2017年11月11日12时30分18秒10毫秒接收到该第一数据包，则该第一网络节点应在2017年11月11日12时30分18秒20毫秒发送该第一数据包。
可选地，S210中，该第一指示信息可以通过显式指示的方式或隐式指示的方式指示该第一时长，本申请实施例对此不作限定。
显式指示的方式：该第一指示信息中可以包括该第一时长的数值信息。
作为一个可选实施例，该第一时长的数值信息可以为至少一个比特，该至少一个比特表示第一时长的数值。
例如，该第一时长的数值信息包括4个比特时，“0001”表示该第一时长为1ms，“0010”表示该第一时长为2ms，“0011”表示该第一时长为3ms，“0100”表示该第一时长为4ms等。
可选地，该第一网络节点和该第二网络节点可以预先约定该第一时长的数值的时间单位，或者该第二网络节点为该第一网络节点配置该时间单位，或者该通信网络中的第三方设备为该第一网络节点和该第二网络节点配置该时间单位。
作为另一个可选实施例，该第一时长的数值信息可以为至少一个比特，该至少一个比特表示该第一时长的编号/索引等。
可选地，该第一网络设备根据该第一指示信息，确定该第一时长，可以为该第一网络节点根据该第一时长的数值信息和第一映射关系，确定该第一时长，该第一映射关系用于表示该第一时长的编号/索引与该第一时长的数值之间的对应关系。
可选地，该第一网络节点与该第二网络节点可以通过多种方式获知该第一映射关系，本申请实施例对此不作限定。
可选地，该第一网络节点和该第二网络节点可以预先约定该第一映射关系，或者该第二网络节点可以为该第一网络节点配置该第一映射关系，或者该通信网络中的第三方设备可以为该第一网络节点和该第二网络节点配置该第一映射关系。
例如，该第一时长的数值信息包括2个比特时，“00”指示该第一时长为1ms，“01”指示该第一时长为2ms，“10”指示该第一时长为3ms，“11”指示该第一时长为4ms。
隐式指示的方式1：该第一指示信息中可以包括第二时长的数值信息，该第二时长为从第三网络节点接收到该第一数据包至第四网络节点发送该第一数据包的时长，其中，该第三网络节点为该通信网络中第一个传输该第一数据包的第一网络节点，该第四网络节点 为该通信网络中最后一个传输该第一数据包的第一网络节点。
作为一个可选实施例，该第二时长的数值信息可以为至少一个比特，该至少一个比特表示第一时长的数值。
可选地，该第一网络节点和该第二网络节点可以预先约定该第二时长的数值的时间单位，或者该第二网络节点为该第一网络节点配置该时间单位，或者该通信网络中的第三方设备为该第一网络节点和该第二网络节点配置该时间单位。
作为另一个可选实施例，该第二时长的数值信息可以为至少一个比特，该至少一个比特表示该第一时长的编号/索引等。
可选地，该第一网络设备根据该第一指示信息，确定该第二时长，可以为该第一网络节点根据该第二时长的数值信息和第二映射关系，确定该第二时长，该第二映射关系用于表示该第二时长的编号/索引与该第二时长的数值之间的对应关系。
可选地，该第一网络节点与该第二网络节点可以通过多种方式获知该第二映射关系，本申请实施例对此不作限定。
可选地，该第一网络节点和该第二网络节点可以预先约定该第二映射关系，或者该第二网络节点可以为该第一网络节点配置该第二映射关系，或者该通信网络中的第三方设备可以为该第一网络节点和该第二网络节点配置该第二映射关系。
可选地，在S230之前，该方法200还包括：该第一网络节点获取第一时间参数，该第一时间参数指示第一时刻或第三时长，该第一时刻为该第三网络节点接收到该第一数据包的时刻，该第三时长为从该第三网络节点接收到该第一数据包至该第一网络节点接收到该第一数据包的时长。
相应地，S230可以为该第一网络节点根据该第二时长和该第一时间参数，发送该第一数据包。
可选地，当该第一时间参数指示该第三时长时，该第一网络节点可以根据该第三时长和该第二时长，确定该第一时长。其中，第一时长≤第二时长－第三时长。
可选地，当该第一时间参数指示该第一时刻时，该第一网络节点可以根据该第一时刻和第三时刻，确定该第三时长，并根据该第三时长和该第二时长，确定该第一时长，该第三时刻为该第一网络节点接收到该第一数据包的时刻。其中，第三时长＝第三时刻－第一时刻，第一时长≤第二时长－第三时长，即第一时长≤第二时长－(第三时刻－第一时刻)。
隐式指示的方式2：该第一指示信息中可以包括第四时长的数值信息，该第四时长为从该第一网络节点接收到该第一数据包至该第四网络节点发出该数据包的时长。
相应地，该第一网络节点可以根据该第四时长，确定该第一时长。其中，第一时长≤第四时长。
例如，图3示出了本申请实施例提供的一种通信网络的架构，该通信网络中仅包括一个第一网络节点，即该通信网络中第三网络节点和第四网络节点为同一个第一网络节点。
如图3所示，第一时刻为t 0，该第三时刻为t 0，该第四网络节点发送该第一数据包的时刻为t 1，该第二时长T 2＝t 1-t 0，第三时长T 3＝0，第四时长T 4＝t 1-t 0，因此，该第一时长T 1≤T 2-(t 0-t 0)＝t 1-t 0，或该第一时长T 1≤T 2-T 3＝t 1-t 0，或该第一时长T 1≤T 4＝t 1-t 0。
例如，图4示出了本申请实施例提供的一种通信网络的架构，该通信网络中包括两个第一网络节点。
应理解，当该通信网络中包括两个第一网络节点时，第一个传输该第一数据包的第一网络节点称为第三网络节点，最后一个传输该第一数据包的第一网络节点称为第四网络节点。
如图4所示，该第一网络节点为第三网络节点时，该第一时刻为t 0，该第三时刻为t 0，该第四网络节点发送该第一数据包的时刻为t 3，该第二时长T 2＝t 3-t 0，第三时长T 3＝0，第四时长T 4＝t 3-t 0，因此，该第一时长T 1≤T 2-(t 0-t 0)＝t 3-t 0，或该第一时长T 1≤T 2-T 3＝t 3-t 0，或该第一时长T 1≤T 4＝t 3-t 0。
如图4所示，该第一网络节点为第四网络节点时，该第一时刻为t 0，该第三时刻为t 2，该第四网络节点发送该第一数据包的时刻为t 3，该第二时长T 2＝t 3-t 0，第三时长T 3＝t 2-t 0，第四时长T 4＝t 3-t 2，因此，该第一时长T 1≤T 2-(t 2-t 0)＝t 3-t 2；或该第一时长T 1≤T 2-T 3＝t 3-t 2，或该第一时长T 1≤T 4＝t 3-t 2。
例如，图5示出了本申请实施例提供的一种通信网络的架构，该通信网络中包括三个第一网络节点。
应理解，当该通信网络中包括三个第一网络节点时，第一个传输该第一数据包的第一网络节点称为第三网络节点，最后一个传输该第一数据包的第一网络节点称为第四网络节点，在该第三网络节点和该第四网络节点之间传输该第一数据包的第一网络节点称为中间网络节点。
如图5所示，该第一网络节点为第三网络节点时，该第一时刻为t 0，该第三时刻为t 0，该第四网络节点发送该第一数据包的时刻为t 5，该第二时长T 2＝t 5-t 0，该第三时长T 3＝0，第四时长T 4＝t 5-t 0，因此，该第一时长T 1≤T 2-(t 0-t 0)＝t 5-t 0；或该第一时长T 1≤T 2-T 3＝t 5-t 0，或该第一时长T 1≤T 4＝t 5-t 0。
如图5所示，该第一网络节点为中间网络节点时，该第一时刻为t 0，该第三时刻为t 2，该第四网络节点发送该第一数据包的时刻为t 5，该第二时长T 2＝t 5-t 0，第三时长T 3＝t 2-t 0，第四时长T 4＝t 5-t 2，因此，该第一时长T 1≤T 2-(t 2-t 0)＝t 5-t 2；或该第一时长T 1≤T 2-T 3＝t 5-t 2，或该第一时长T 1≤T 4＝t 5-t 2。
可选地，该第一网络节点可以获取该第一指示信息中携带的该通信网络中任意两个第一网络节点之间传输该第一数据包的传输时长，和/或该通信网络中任意一个第一网络节点支持的处理时长。
可选地，该第一网络节点可以通过估算的方式，获知该通信网络中任意两个第一网络节点之间传输该第一数据包的传输时长，和/或该通信网络中任意一个第一网络节点支持的处理时长。
例如，如图5所示，该中间网络节点可以获知该中间网络节点和该第四网络节点之间传输该第一数据包的传输时长T 4＝t 4-t 3，以及该第四网络节点从接收到该第一数据包至发送该第一数据包的处理时长T 5＝t 5-t 4，则该中间网络节点可以确定该第一时长T 1＝(T 2-T 3)-T 4-T 5＝t 5-t 2-(t 4-t 3)-(t 5-t 4)＝t 3-t 2。
如图5所示，该第一网络节点为第四网络节点时，该第一时刻为t 0，该第三时刻为t 4，该第四网络节点发送该第一数据包的时刻为t 5，该第二时长T 2＝t 5-t 0，第三时长T 3＝t 4-t 0，第四时长T 4＝t 5-t 4，因此，该第一时长T 1≤T 2-(t 4-t 0)＝t 5-t 4；或该第一时长T 1≤T 2-T 3＝t 5-t 4，或该第一时长T 1≤T 4＝t 5-t 4。
应理解，本申请实施例仅以该通信网络中包括一个第一网络节点、两个第一网络节点和三个第一网络节点的情况，对该通信网络的架构进行描述，该通信网络中还可以包括三个以上第一网络节点，即包括多个中间网络节点，本申请实施例对此不作限定。
可选地，该通信网络中包括三个以上第一网络节点时，第一网络节点确定该第一时长的方式与该通信网络中包括三个第一网络节点时类似，为避免重复，此处不再赘述。
具体地，S230可以为该第一网络节点根据该第一指示信息，确定该第一时长；该第一网络节点根据该第一时长，发送该第一数据包。
可选地，该第一网络节点根据该第一时长，发送该第一数据包，可以为该第一网络节点在该第一时长的范围内，发送该第一数据包。即保障该第一数据包在该第一时长内传输的确定性。
作为一个可选实施例，该第一网络节点可以在该第一时长的结束时刻之前，完成该第一数据包的处理并发送该第一数据包。
作为另一个可选实施例，该第一网络节点可以在该第一时长的结束时刻，发送该第一数据包，也就是说，若该第一网络节点在该第一时长结束前完成对该第一数据包的处理，该第一网络节点可以先存储该第一数据包，直到该第一时长的结束时刻，发送该第一数据包。
例如，该第一网络节点可以在接收到该第一数据包之后，开启定时器，该定时器的时长为该第一时长，当该定时器超时之后，该第一网络节点发送该第一数据包。
本申请实施例提供的数据传输的方法，通信网络中的第一网络节点根据第一指示信息中的第一时长，发送该第一数据包，有利于保障该通信网络按照时长要求传输该第一数据包。
可选地，本申请实施例中的第一时长还可以包括该第一网络节点传输该第一数据包的传输时长。
作为一个可选实施例，该第一网络节点不是第四网络节点时，该传输时长包括从该第一网络节点开始发送第一数据包起至下一跳网络节点接收到该第一数据包或者正确接收到该第一数据包的时长。
作为另一个可选实施例，该第一网络节点是第四网络节点时，该传输时长包括从第四网络节点开始发送该第一数据包起至业务网络中的其它网络节点接收到该第一数据包或者正确接收到该第一数据包的时长。
可选地，该第一指示信息中还可以包括时长门限和该时长抖动中的至少一项，其中，时长门限可以包括时长上限和/或时长下限，本申请实施例对此不作限定。
作为一个可选实施例，该第一网络节点根据该第一时长，发送该第一数据包，可以为该第一网络节点根据该时长门限和时长抖动中的至少一项和该第一时长，发送该第一数据包。
也就是说，该第一网络节点在该第一时长的可允许的时长门限范围内，或在该第一时长的可允许的时长抖动范围内，发送该第一数据包。
作为另一个可选实施例，该第一网络节点根据该第二时长和该第一时间参数，发送该第一数据包，可以为该第一网络节点根据该时长门限和该时长抖动中的至少一项、该第二时长和该第一时间参数，发送该第一数据包。
也就是说，该第一网络节点在该第二时长的可允许的时长门限范围内，或在该第二时长的可允许的时长抖动范围内，发送该第一数据包。
可选地，在S230之前，该方法200还包括：该第一网络节点获取确定性传输指示信息，该确定性传输指示信息用于指示该第一网络节点对第一数据流进行确定性传输，即指示该第一网络节点按照该第一时长的要求传输该第一数据流中的数据包，其中该第一数据流中包括该第一数据包。相应地，该S230可以为：该第一网络节点根据该第一时长和该确定性传输指示信息，发送该第一数据包。
可选地，由于通信网络对该第一数据包的时延要求较高，如果为按照第二网络节点指示的时长要求传输该第一数据包，可能会导致该第一数据包失效或过期，因此当第一网络节点确定不能在第一时长的要求内发送该第一数据包时，第一网络节点可以丢弃该第一数据包，或第一网络节点可以向该第二网络节点指示所述第一网络节点支持的从接收到所述第一数据包至发送所述第一数据包的时长或者指示传输失败等，本申请实施例对此不做限定。
可选地，该确定性传输指示信息可以显式指示该第一网络节点对该第一数据流进行确定性传输，或隐式指示该第一网络节点对该第一数据流进行确定性传输，本申请实施例对此不作限定。
显式指示方式：该确定性传输指示信息为至少一个比特，通过该至少一个比特指示该第一网络节点对该第一数据流进行确定性传输。
例如，该至少一个比特为1比特时，该1比特位为“0”指示该第一网络节点不对该第一数据流进行确定性传输，该1比特位为“1”指示该第一网络节点对该第一数据流进行确定性传输。
又例如，当存在该至少一个比特时，指示该第一网络节点对该第一数据流进行确定性传输，当不存在该至少一个比特时，指示该第一网络节点不对该第一数据流进行确定性传输。
隐式指示方式：该确定性传输指示信息为该第一数据流的标识，或该确定性传输指示信息为该第一时长。
可选地，该第一网络节点可以通过多种方式获取该确定性传输指示信息，本申请实施例对此不作限定。
作为一个可选实施例，该第一网络节点可以获取该第一指示信息中携带的该确定性传输指示信息。
作为另一个可选实施例，该第一网络节点可以接收第三指示信息，根据该第三指示信息中包含的该确定性传输指示信息，获取该确定性传输指示信息。
可选地，该确定性传输指示信息不为该第一数据流的标识时，该第一指示信息或该第三指示中还包括该第一数据流的标识。
可选地，该第一网络节点可以传输至少一个数据流中的数据包，该至少一个数据流包括该第一数据流。
应理解，本申请实施例中的数据流是指由一个或者至少两个数据包组成的数据包集合，是一个逻辑的概念，属于同一个数据流的数据包具有相同或相近的特征。
可选地，具有相同的收发端的数据包，例如具有相同的互联网协议(internet protocol， IP)地址的数据包，或具有相同或相近的传输时长要求的数据包，或具有相同的数据流标识的数据包可以属于一个数据流。
可选地，该数据流的标识可以为该数据流所在的承载的标识，或该数据流的发送端和/或接收端的标识，或者终端设备的标识，或在该通信网络中为该数据流分配的用以在该通信网络内部区分该数据流的标识等，本申请实施例对此不作限定。
本申请实施例提供的数据传输的方法，该确定性传输指示信息包括数据流的标识，能够使得当通信网络中具有多个不同传输时长要求的数据流时，该第一网络节点可以区分不同的数据流，并保障该通信网络按照每个数据流的时长要求传输该每个数据流中的数据包。
可选地，第一数据流中包括采用第一传输周期传输的至少两个数据包，该至少两个数据包中包括该第一数据包，该第一指示信息还包括该第一传输周期的信息。
可选地，该第一网络节点获取该第一时间参数，可以为该第一网络节点获取第二时间参数，该第二时间参数指示第二时刻，该第二时刻为该第三网络节点接收到第二数据包的时刻，该第二数据包为该至少两个数据包中第一个被传输的数据包。
可选地，该第一网络节点可以根据该第二时刻和该第一传输周期，确定该第一时刻。
本申请实施例提供的数据传输的方法，该第二时间参数可以只携带在该第二数据包中中，即采用该第一传输周期发送该至少两个数据包中除该第二数据包之外的其他数据包无需携带该第二时间参数或该第一时间参数，能够降低传输的开销。
可选地，该第一网络节点可以通过多种方式获取该第一时间参数，本申请实施例对此不作限定。
作为一个可选实施例，该第一网络节点可以获取该第一数据包携带的该第一时间参数。
可选地，该第一时间参数可以包含在协议数据单元(protocol data unit，PDU)层的包头信息中，或者该第一时间参数可以包含在两个第一网络节点传输协议的包头中，例如：互联网协议(internet protocol，IP)、以太帧的包头、用户数据报协议(user data protocol，UDP)或通用分组无线服务技术(general packet radio service，GPRS)隧道协议(GPRS turning protocol，GTP)的包头中。当第一网络节点通过无线接口传输数据包时，该第一时间参数还可以包含在无线协议栈的包头中，例如：服务数据适应协议(service data adaption protocol，SDAP)层、分组数据汇聚协议(packet data convergence protocol，PDCP)、无线链路控制(radio link control，RLC)或介质访问控制(media access control，MAC)层的包头中。可选地，该第一时间参数也可以包含在该数据包的随路信令中。
作为另一个可选实施例，该第一网络节点可以接收该第二网络节点发送的第二指示信息，该第二指示信息中包括该第一时间参数的信息，该第一网络节点从该第二指示信息中获取该第一时间参数。
例如，该第一网络节点可以接收该第一网络节点的上一跳网络节点发送的该第二指示信息。
可选地，在S230之前该第一网络节点可以接收该第二网络节点发送的传输该第一数据流中的数据包时所使用的传输参数，该传输参数包括至少一个激活标识、该至少一个激活标识激活的至少一种传输周期和采用该至少一种传输周期中每种传输周期发送的数据 包的标识，该至少一种传输周期包括该第一传输周期；相应地，S230可以为：该第一网络节点根据该第一指示信息和该传输参数，发送该第一数据包。
可选地，该第一数据流中可以包括采用一种传输或多种传输周期传输的数据包。
可选地，该至少一个激活标识可以激活一种传输周期或多种传输周期，本申请实施例对此不作限定。
可选地，该至少一个传输周期的数量为1时，采用该传输周期发送的数据包的标识可以为该第一数据流的标识；该至少一种传输周期的数量大于1时，采用该多种传输周期中每种传输周期发送的数据包的标识可以为用于区分不同传输周期的数据包的标识，本申请实施例对此不作限定。
可选地，该传输参数还可以包括采用该每种传输周期发送的数据包所使用的时频资源的信息和/或采用该每种传输周期发送的数据包的调制与编码策略(modulation and coding scheme，MCS)的信息。
可选地，当该至少一种传输周期的数量为多种，且采用第二传输周期发送的第二数据包和采用第三传输周期发送的第三数据包的发送时间点重合(即该第二数据包的时频资源和该第三数据包的时频资源冲突)时，该传输参数还可以包括用于传输该第二数据包和该第三数据包的目标时频资源的信息和/或用于传输该第二数据包和该第三数据包的目标MCS的信息，其中，该第二传输周期和该第三传输周期为多种传输周期中的任意两种，本申请实施例对此不作限定。
可选地，该传输参数还可以包括该激活标识的有效期或有效时长。
可选地，该传输参数还可以包括至少一个去激活标识、该至少一个去激活标识去激活的至少一种传输周期的信息和采用该去激活的至少一种传输周期中每种传输周期发送的数据包的标识。
可选地，该至少一个去激活标识可以去激活一种或多种传输周期，本申请实施例对此不作限定。
可选地，该传输参数还可以包括其他用于调度该第一数据流中的数据包的调度信息，本申请实施例对此不作限定。
可选地，该传输参数中的各项信息的获取方式可以相同也可以不同，本申请实施例对此不作限定。
例如，该第一网络节点可以获取该第一指示信息中携带的该传输参数；或者可以接收其它指示信息，该其它指示信息中携带该传输参数。
又例如，该第一网络节点可以接收该第二网络节点发送的调度信息，该调度信息中携带采用该每种传输周期发送的数据包所使用的时频资源的信息和/或采用激活的该每种传输周期发送的数据包所使用的MCS的信息。
又例如，该第一网络节点可以获取采用第一传输周期传输该第二数据包所使用的时频资源的信息，根据该第一传输周期和传输该第二数据包所使用的时频资源，确定采用该第一传输周期发送的每个数据包所使用的时频资源的信息。
可选地，该第一网络节点该第二网络节点之间为空口传输时，该第二网络节点可以向该第一网络节点发送该传输参数。
本申请实施例提供的数据传输的方法，第一网络节点根据传输参数可以获知哪种或哪 几种传输周期被激活，采用每种被激活的传输周期传输哪些数据包，以及传输这些数据包所使用的时频资源和MCS，因此，该第一网络节点无需在发送每个数据包的时候，向该第二网络节点请求调度信息，能够减少信令的开销。
可选地，该方法200还包括：该第一网络节点向该第二网络节点上报传输能力信息，该传输能力信息包括第一网络节点支持的传输数据量、第一网络节点支持的传输速率、第一网络节点支持的传输可靠性和该第一网络节点支持的从该第一网络节点接收到该第一数据包至该第一网络节点发送该第一数据包的时长。相应地，该第二网络节点可以接收该第一网络节点上报的该传输能力信息，并根据该传输能力信息确定该第一网络节点的该第一指示信息。
可选地，第一网络节点支持的传输数据量、第一网络节点支持的传输速率、第一网络节点支持的传输可靠性和该第一网络节点支持的从该第一网络节点接收到该第一数据包至该第一网络节点发送该第一数据包的时长，可以为：在当前环境下、或在该第一网络节点的当前配置下，该第一网络节点的最大传输数据量、最大传输速率、最大可靠性和从该第一网络节点接收到该第一数据包至该第一网络节点发送该第一数据包的最短时长，本申请实施例对此不作限定。
可选地，该第一网络节点可以周期性向该第二网络节点上报该传输能力信息；或者该第一网络节点可以通过第一事件触发向该第二网络节点上报该传输能力信息，本申请实施例对该第一网络节点上报该传输能力信息的时机不作限定。
其中，该第一事件可以为该第一网络节点接收到该第二网络节点发送的传输能力信息请求，或者该第一事件可以为该第一网络节点完成该第一数据包的发送，本申请实施例对此不作限定。
可选地，该方法200还包括：该第一网络节点向该第二网络节点发送传输响应信息，该传输响应信息用于反馈该第一网络节点的传输能力可以达到该第一指示信息指示的该第一时长，或者该传输响应信息用于反馈该第一网络节点的传输能力不能达到该第一时长，或者该传输响应信息用于反馈该第一网络节点支持的传输能力信息。
相应地，该第一网络节点根据该第一时长，发送该第一数据包，包括：当该第一网络节点的传输能力可以达到该第一时长时，该第一网络节点根据该第一时长，发送该第一数据包。
可选地，本申请实施例可应用于上行传输的场景或下行传输的场景，本申请实施例对此不作限定。
具体地，在上行传输的场景中，该第一网络节点发送该第一数据包，可以理解为该第一网络节点沿着上行方向，发送该第一数据包；在下行传输的场景中，该第一网络节点发送该第一数据包，可以理解为该第一网络节点沿着下行方向，发送该第一数据包。
图6示出了本申请实施例提供的另一数据传输的方法600的示意性流程图。该方法600例如可以应用于如图1所示的通信网络中。
S610，第一网络节点向第二网络节点上报传输能力信息，该传输能力信息包括第一网络节点支持的传输数据量、第一网络节点支持的传输速率、第一网络节点支持的传输可靠性和该第一网络节点支持的从该第一网络节点接收到该第一数据包至该第一网络节点发送该第一数据包的时长；相应地，该第二网络节点接收该第一网络节点发送的该传输能力 信息。
可选地，第一网络节点支持的传输数据量、第一网络节点支持的传输速率、第一网络节点支持的传输可靠性和该第一网络节点支持的从该第一网络节点接收到该第一数据包至该第一网络节点发送该第一数据包的时长，可以为：在当前环境下、或在该第一网络节点的当前配置下，该第一网络节点的最大传输数据量、最大传输速率、最大可靠性和从该第一网络节点接收到该第一数据包至该第一网络节点发送该第一数据包的最短时长，本申请实施例对此不作限定。
可选地，该第一网络节点可以周期性向该第二网络节点上报该传输能力信息；或者该第一网络节点可以通过第一事件触发向该第二网络节点上报该传输能力信息，本申请实施例对该第一网络节点上报该传输能力信息的时机不作限定。
其中，该第一事件可以为该第一网络节点接收到该第二网络节点发送的传输能力信息请求，或者该第一事件可以为该第一网络节点完成该第一数据包的发送，本申请实施例对此不作限定。
S620，第二网络节点根据该传输能力信息，确定该第一指示信息，该第一指示信息用于该第一网络节点确定第一时长，该第一时长为从该第一网络节点接收到该第一数据包至该第一网络节点发送该第一数据包；相应地，该第一网络节点接收该第二网络节点发送的该第一指示信息。
S630，该第二网络节点向该第一网络节点发送该第一指示信息；相应地，该第一网络节点接收该第一指示信息。
S640，该第一网络节点根据该第一指示信息，发送该第一数据包。
具体地，该第一网络节点可以根据该第一指示信息，确定该第一时长；该第一网络节点根据该第一时长，发送该第一数据包。
可选地，该第一网络节点根据该第一时长，发送该第一数据包可以为：该第一网络节点在该第一时长的结束时刻之前，发送该第一数据包，或者该第一网络节点在该第一时长的结束时刻，发送该第一数据包，本申请实施例对此不作限定。
可选地，该第一指示信息中还包括确定性传输指示信息，该确定性传输指示信息用于指示该第一网络节点对第一数据流进行确定性传输，即指示该第一网络节点按照该第一时长的要求传输该第一数据流中的数据包，其中该第一数据流中包括该第一数据包。
相应地，该第一网络节点根据该第一时长和该确定性传输指示信息，发送该第一数据包。
可选地，当第一网络节点确定不能在第一时长的要求内发送该第一数据包时，第一网络节点可以丢弃该第一数据包，或第一网络节点可以向发送端指示所述第一网络节点支持的从接收到所述第一数据包至发送所述第一数据包的时长或者指示传输失败等，本申请实施例对此你不做限定。
应理解，本申请实施例中的数据流是指由一个或者多个数据包组成的数据包集合，是一个逻辑的概念，属于同一个数据流的数据包具有相同或相近的特征。
可选地，具有相同的收发端的数据包，例如具有相同的互联网协议(internet protocol，IP)地址的数据包，或具有相同或相近的传输时长要求的数据包可以属于一个数据流。
可选地，该数据流的标识可以为该数据流所在的承载的标识，或该数据流的发送端和 /或接收端的标识，或者终端设备的标识，或在该通信网络中为该数据流分配的用以在该通信网络内部区分该数据流的标识等，本申请实施例对此不作限定。
上面结合图1至图6详细介绍了本申请实施例提供的数据传输的方法，下面将结合图7至图10介绍本申请实施例提供的数据传输的装置。
图7示出了本申请实施例提供的数据传输的装置700的示意性框图。该装置700包括：
接收单元710，用于接收第二网络节点发送的第一指示信息，该第一指示信息用于确定第一时长，该第一时长为从该装置接收到第一数据包至该装置发送该第一数据包的时长；
发送单元720，用于根据该接收单元接收的该第一指示信息，发送该第一数据包。
可选地，该装置700还包括处理单元730，该处理单元用于根据该接收单元接收的该第一指示信息，确定该第一时长；该发送单元具体用于根据该处理单元确定的该第一时长，发送该第一数据包。
可选地，该第一数据包为第一数据流中的数据包，该第一指示信息中包括该第一数据流的标识。
可选地，该第一指示信息中包括该第一时长的数值信息。
可选地，该第一指示信息中包括第二时长的数值信息，该第二时长为从第三网络节点接收到该第一数据包至第四网络节点发送该第一数据包的时长，该第三网络节点为通信网络中第一个传输该第一数据包的网络节点，该第四网络节点为该通信网络中最后一个传输该第一数据包的网络节点，且该通信网络包括该装置和该第二网络节点，该装置还包括：获取单元，该获取单元用于在该根据该第一指示信息，发送该第一数据包之前，获取第一时间参数，该第一时间参数指示第一时刻或第三时长，该第一时刻为该第三网络节点接收到该第一数据包的时刻，该第三时长为从该第三网络节点接收到该第一数据包至该装置接收到该第一数据包的时长；该发送单元具体用于根据该第一指示信息和该第一时间参数，发送该第一数据包。
可选地，该获取单元用于获取该第一数据包携带的该第一时间参数；或该接收单元还用于接收第二指示信息，该第二指示信息中包括该第一时间参数；该获取单元用于从该第二指示信息中获取该第一时间参数。
可选地，第一数据流中包括采用第一传输周期传输的至少两个数据包，该至少两个数据包中包括该第一数据包，该第一指示信息还包括该第一传输周期的信息。
可选地，该第一时间参数指示该第一时刻时，该获取单元还用于获取第二时间参数，该第二时间参数指示第二时刻，该第二时刻为该第三网络节点接收到第二数据包的时刻，该第二数据包为该至少两个数据包中第一个被传输的数据包；该处理单元用于根据该第二时刻和该第一传输周期，获取该第一时间参数。
可选地，该第一数据包为第一数据流中的数据包，该获取单元还用于在该根据该第一指示信息，发送该第一数据包之前，获取传输该第一数据流中的数据包时所使用的传输参数，该传输参数包括至少一个激活标识、该至少一个激活标识激活的至少一种传输周期和采用该至少一种传输周期中每种传输周期发送的数据包的标识，该至少一种传输周期包括该第一传输周期；该发送单元具体用于根据该第一指示信息和该传输参数，发送该第一数据包。
可选地，该发送单元还用于向该第二网络节点上报传输能力信息，该传输能力信息包括该装置支持的传输数据量、该装置支持的传输速率、该装置支持的传输可靠性和该装置支持的从该装置接收到该第一数据包至该装置发送该第一数据包的时长中的至少一项。
可选地，该第一指示信息中包括时长门限和时长抖动中的至少一项。
应理解，这里的装置700以功能单元的形式体现。这里的术语“单元”可以指应用特有集成电路(application specific integrated circuit，ASIC)、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中，本领域技术人员可以理解，装置700可以具体为上述方法200和方法600实施例中的第一网络节点，装置700可以用于执行上述方法200和方法600实施例中与第一网络节点对应的各个流程和/或步骤，为避免重复，在此不再赘述。
图8示出了本申请实施例提供的数据传输的装置1200的示意性框图。该装置1300包括：
处理单元810，用于确定第一指示信息，该第一指示信息用于第一时长的确定，该第一时长为从第一网络节点接收到第一数据包至该第一网络节点发送该第一数据包的时长；
发送单元820，用于向该第一网络节点发送该第一指示信息。
可选地，该第一数据包为第一数据流中的数据包，该第一指示信息中包括该第一数据流的标识。
可选地，该第一指示信息中包括该第一时长的数值信息。
可选地，该第一指示信息中包括第二时长的数值信息，该第二时长为从第三网络节点接收到该第一数据包至第四网络节点发送该第一数据包的时长，该第三网络节点为通信网络中第一个传输该第一数据包的网络节点，该第四网络节点为该通信网络中最后一个传输该第一数据包的网络节点，且该通信网络包括该装置和该第二网络节点。
可选地，第一数据流中包括采用第一传输周期传输的至少两个数据包，该至少两个数据包中包括该第一数据包，该第一指示信息还包括该第一传输周期的信息。
可选地，该第一数据包为第一数据流中的数据包，该第一信息中还包括传输该第一数据流中的数据包时所使用的传输参数，该传输参数包括至少一个激活标识、该至少一个激活标识激活的至少一种传输周期和采用该至少一种传输周期中每种传输周期发送的数据包的标识，该至少一种传输周期包括该第一传输周期。
可选地，该第一指示信息中包括时长门限和时长抖动中的至少一项。
可选地，该装置还包括：接收单元，该接收单元用于接收该第一网络节点上报的传输能力信息，该传输能力信息包括该第一网络节点支持的传输数据量、该第一网络节点支持的传输速率、该第一网络节点支持的传输可靠性和该第一网络节点支持的从该第一网络节点接收到该第一数据包至该第一网络节点发送该第一数据包的时长中的至少一项；该处理单元具体用于根据该传输能力信息，确定该第一指示信息。
应理解，这里的装置800以功能单元的形式体现。这里的术语“单元”可以指ASIC、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中，本领域技术人员可以理解，装置800可以具体为上述方法200和方法600 实施例中的第二网络节点，装置800可以用于执行上述方法200和方法600实施例中与第二网络节点对应的各个流程和/或步骤，为避免重复，在此不再赘述。
图9示出了本申请实施例提供的数据传输的装置900，该装置900可以为图1和图2中所述的第一网络节点，该装置900可以采用如图9所示的硬件架构。该装置可以包括处理器910、收发器920和存储器930，该处理器910、收发器920和存储器930通过内部连接通路互相通信。图7中的处理单元730所实现的相关功能可以由处理器910来实现，发送单元720和接收单元710所实现的相关功能可以由处理器910控制收发器920来实现。
该处理器910可以包括是一个或多个处理器，例如包括一个或多个中央处理单元(central processing unit，CPU)，在处理器是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
该收发器920用于发送和接收数据和/或信号，以及接收数据和/或信号。该收发器可以包括发射器和接收器，发射器用于发送数据和/或信号，接收器用于接收数据和/或信号。
该存储器930包括但不限于是随机存取存储器(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程存储器(erasable programmable read only memory，EPROM)、只读光盘(compact disc read-only memory，CD-ROM)，该存储器930用于存储相关指令及数据。
存储器930用于存储装置的程序代码和数据，可以为单独的器件或集成在处理器910中。
具体地，所述处理器910用于控制收发器与第二网络节点进行信息传输。具体可参见方法实施例中的描述，在此不再赘述。
可以理解的是，图9仅仅示出了装置的简化设计。在实际应用中，装置还可以分别包含必要的其他元件，包含但不限于任意数量的收发器、处理器、控制器、存储器等，而所有可以实现本申请的装置都在本申请的保护范围之内。
在一种可能的设计中，装置900可以被替换为芯片装置，例如可以为可用于装置中的通信芯片，用于实现装置中处理器910的相关功能。该芯片装置可以为实现相关功能的现场可编程门阵列，专用集成芯片，系统芯片，中央处理器，网络处理器，数字信号处理电路，微控制器，还可以采用可编程控制器或其他集成芯片。该芯片中，可选的可以包括一个或多个存储器，用于存储程序代码，当所述代码被执行时，使得处理器实现相应的功能。
图10示出了本申请实施例提供的装置1000，该装置1000可以为图1和图2中所述的第二网络节点，该装置1000可以采用如图10所示的硬件架构。该装置可以包括处理器1010、收发器1020和存储器1030，该处理器1010、收发器1020和存储器1030通过内部连接通路互相通信。图8中的处理单元810所实现的相关功能可以由处理器1010来实现，发送单元820所实现的相关功能可以由处理器1010控制收发器1020来实现。
该处理器1010可以包括是一个或多个处理器，例如包括一个或多个CPU，在处理器是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
该收发器1020用于发送和接收数据和/或信号，以及接收数据和/或信号。该收发器可以包括发射器和接收器，发射器用于发送数据和/或信号，接收器用于接收数据和/或信号。
该存储器1030包括但不限于是RAM、ROM、EPROM、CD-ROM，该存储器1030用于存储相关指令及数据。
存储器1030用于存储装置的程序代码和数据，可以为单独的器件或集成在处理器1010中。
具体地，所述处理器1010用于控制收发器与第一网络节点进行信息传输。具体可参见方法实施例中的描述，在此不再赘述。
可以理解的是，图10仅仅示出了装置的简化设计。在实际应用中，装置还可以分别包含必要的其他元件，包含但不限于任意数量的收发器、处理器、控制器、存储器等，而所有可以实现本申请的装置都在本申请的保护范围之内。
在一种可能的设计中，装置1000可以被替换为芯片装置，例如可以为可用于装置中的通信芯片，用于实现装置中处理器1010的相关功能。该芯片装置可以为实现相关功能的现场可编程门阵列，专用集成芯片，系统芯片，中央处理器，网络处理器，数字信号处理电路，微控制器，还可以采用可编程控制器或其他集成芯片。该芯片中，可选的可以包括一个或多个存储器，用于存储程序代码，当所述代码被执行时，使得处理器实现相应的功能。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟 悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (32)

  1. 一种数据传输的方法，其特征在于，包括：
    第一网络节点接收第二网络节点发送的第一指示信息，所述第一指示信息用于所述第一网络节点确定第一时长，所述第一时长为从所述第一网络节点接收到第一数据包至所述第一网络节点发送所述第一数据包的时长；
    所述第一网络节点根据所述第一指示信息，发送所述第一数据包。
  2. 根据权利要求1所述的方法，其特征在于，所述第一数据包为第一数据流中的数据包，所述第一指示信息中包括所述第一数据流的标识。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一指示信息中包括所述第一时长的数值信息。
  4. 根据权利要求1或2所述的方法，其特征在于，所述第一指示信息中包括第二时长的数值信息，所述第二时长为从第三网络节点接收到所述第一数据包至第四网络节点发送所述第一数据包的时长，所述第三网络节点为通信网络中第一个传输所述第一数据包的网络节点，所述第四网络节点为所述通信网络中最后一个传输所述第一数据包的网络节点，且所述通信网络包括所述第一网络节点和所述第二网络节点，在所述第一网络节点根据所述第一指示信息，发送所述第一数据包之前，所述方法还包括：
    所述第一网络节点获取第一时间参数，所述第一时间参数指示第一时刻或第三时长，所述第一时刻为所述第三网络节点接收到所述第一数据包的时刻，所述第三时长为从所述第三网络节点接收到所述第一数据包至所述第一网络节点接收到所述第一数据包的时长；
    所述第一网络节点根据所述第一指示信息，发送所述第一数据包，包括：
    所述第一网络节点根据所述第一指示信息和所述第一时间参数，发送所述第一数据包。
  5. 根据权利要求4所述的方法，其特征在于，所述第一网络节点获取第一时间参数，包括：
    所述第一网络节点获取所述第一数据包携带的所述第一时间参数；或
    所述第一网络节点接收第二指示信息，所述第二指示信息中包括所述第一时间参数的信息，所述第一网络节点从所述第二指示信息中获取所述第一时间参数。
  6. 根据权利要求4所述的方法，其特征在于，第一数据流中包括采用第一传输周期传输的至少两个数据包，所述至少两个数据包中包括所述第一数据包，所述第一指示信息还包括所述第一传输周期的信息。
  7. 根据权利要求6所述的方法，其特征在于，所述第一时间参数指示所述第一时刻，所述第一网络节点获取第一时间参数，包括：
    所述第一网络节点获取第二时间参数，所述第二时间参数指示第二时刻，所述第二时刻为所述第三网络节点接收到第二数据包的时刻，所述第二数据包为所述至少两个数据包中第一个被传输的数据包；
    所述第一网络节点根据所述第二时刻和所述第一传输周期，确定所述第一时间参数。
  8. 根据权利要求2至7中任一项所述的方法，其特征在于，所述第一数据包为第一 数据流中的数据包，在所述第一网络节点根据所述第一指示信息，发送所述第一数据包之前，所述方法还包括：
    所述第一网络节点获取传输所述第一数据流中的数据包时所使用的传输参数，所述传输参数包括至少一个激活标识、所述至少一个激活标识激活的至少一种传输周期和采用所述至少一种传输周期中每种传输周期发送的数据包的标识，所述至少一种传输周期包括所述第一传输周期；
    所述第一网络节点根据所述第一指示信息，发送所述第一数据包，包括：
    所述第一网络节点根据所述第一指示信息和所述传输参数，发送所述第一数据包。
  9. 根据权利要求1至8中任一项所述的方法，其特征在于，所述方法还包括：
    所述第一网络节点向所述第二网络节点上报传输能力信息，所述传输能力信息包括所述第一网络节点支持的传输数据量、所述第一网络节点支持的传输速率、所述第一网络节点支持的传输可靠性和所述第一网络节点支持的从所述第一网络节点接收到所述第一数据包至所述第一网络节点发送所述第一数据包的时长中的至少一项。
  10. 根据权利要求1至9中任一项所述的方法，其特征在于，所述第一指示信息中包括时长门限和时长抖动中的至少一项。
  11. 一种数据传输的方法，其特征在于，包括：
    第二网络节点确定第一指示信息，所述第一指示信息用于第一时长的确定，所述第一时长为从第一网络节点接收到第一数据包至所述第一网络节点发送所述第一数据包的时长；
    所述第二网络节点向所述第一网络节点发送所述第一指示信息。
  12. 根据权利要求11所述的方法，其特征在于，所述方法还包括：
    所述第二网络节点接收所述第一网络节点上报的传输能力信息，所述传输能力信息包括所述第一网络节点支持的传输数据量、所述第一网络节点支持的传输速率、所述第一网络节点支持的传输可靠性和所述第一网络节点支持的从所述第一网络节点接收到所述第一数据包至所述第一网络节点发送所述第一数据包的时长中的至少一项；
    所述第二网络节点确定所述第一网络节点的第一指示信息，包括：
    所述第二网络节点根据所述传输能力信息，确定所述第一指示信息。
  13. 一种数据传输的装置，其特征在于，包括：
    接收单元，用于接收第二网络节点发送的第一指示信息，所述第一指示信息用于确定第一时长，所述第一时长为从所述装置接收到第一数据包至所述装置发送所述第一数据包的时长；
    发送单元，用于根据所述接收单元接收的所述第一指示信息，发送所述第一数据包。
  14. 根据权利要求13所述的装置，其特征在于，所述第一数据包为第一数据流中的数据包，所述第一指示信息中包括所述第一数据流的标识。
  15. 根据权利要求13或14所述的装置，其特征在于，所述第一指示信息中包括所述第一时长的数值信息。
  16. 根据权利要求13或14所述的装置，其特征在于，所述第一指示信息中包括第二时长的数值信息，所述第二时长为从第三网络节点接收到所述第一数据包至第四网络节点发送所述第一数据包的时长，所述第三网络节点为通信网络中第一个传输所述第一数据包 的网络节点，所述第四网络节点为所述通信网络中最后一个传输所述第一数据包的网络节点，且所述通信网络包括所述装置和所述第二网络节点，所述装置还包括：获取单元，
    所述获取单元用于在所述根据所述第一指示信息，发送所述第一数据包之前，获取第一时间参数，所述第一时间参数指示第一时刻或第三时长，所述第一时刻为所述第三网络节点接收到所述第一数据包的时刻，所述第三时长为从所述第三网络节点接收到所述第一数据包至所述装置接收到所述第一数据包的时长；
    所述发送单元具体用于根据所述第一指示信息和所述第一时间参数，发送所述第一数据包。
  17. 根据权利要求16所述的装置，其特征在于，
    所述获取单元用于获取所述第一数据包携带的所述第一时间参数；或
    所述接收单元还用于接收第二指示信息，所述第二指示信息中包括所述第一时间参数的信息；所述获取单元用于从所述第二指示信息中获取所述第一时间参数。
  18. 根据权利要求16所述的装置，其特征在于，第一数据流中包括采用第一传输周期传输的至少两个数据包，所述至少两个数据包中包括所述第一数据包，所述第一指示信息还包括所述第一传输周期的信息。
  19. 根据权利要求18所述的装置，其特征在于，所述第一时间参数指示所述第一时刻时，所述装置还包括处理单元；
    所述获取单元还用于获取第二时间参数，所述第二时间参数指示第二时刻，所述第二时刻为所述第三网络节点接收到第二数据包的时刻，所述第二数据包为所述至少两个数据包中第一个被传输的数据包；
    所述处理单元用于根据所述第二时刻和所述第一传输周期，获取所述第一时间参数。
  20. 根据权利要求14至19中任一项所述的装置，其特征在于，所述第一数据包为第一数据流中的数据包，
    所述获取单元还用于在所述根据所述第一指示信息，发送所述第一数据包之前，获取传输所述第一数据流中的数据包时所使用的传输参数，所述传输参数包括至少一个激活标识、所述至少一个激活标识激活的至少一种传输周期和采用所述至少一种传输周期中每种传输周期发送的数据包的标识，所述至少一种传输周期包括所述第一传输周期；
    所述发送单元具体用于根据所述第一指示信息和所述传输参数，发送所述第一数据包。
  21. 根据权利要求13至20中任一项所述的装置，其特征在于，
    所述发送单元还用于向所述第二网络节点上报传输能力信息，所述传输能力信息包括所述装置支持的传输数据量、所述装置支持的传输速率、所述装置支持的传输可靠性和所述装置支持的从所述装置接收到所述第一数据包至所述装置发送所述第一数据包的时长中的至少一项。
  22. 根据权利要求13至21中任一项所述的装置，其特征在于，所述第一指示信息中包括时长门限和时长抖动中的至少一项。
  23. 一种数据传输的装置，其特征在于，包括：
    处理单元，用于确定第一指示信息，所述第一指示信息用于第一时长的确定，所述第一时长为从第一网络节点接收到第一数据包至所述第一网络节点发送所述第一数据包的 时长；
    发送单元，用于向所述第一网络节点发送所述第一指示信息。
  24. 根据权利要求23所述的装置，其特征在于，所述装置还包括：接收单元，
    所述接收单元用于接收所述第一网络节点上报的传输能力信息，所述传输能力信息包括所述第一网络节点支持的传输数据量、所述第一网络节点支持的传输速率、所述第一网络节点支持的传输可靠性和所述第一网络节点支持的从所述第一网络节点接收到所述第一数据包至所述第一网络节点发送所述第一数据包的时长中的至少一项；
    所述处理单元具体用于根据所述传输能力信息，确定所述第一指示信息。
  25. 一种数据传输的装置，所述装置包括存储器、处理器、通信接口及存储在所述存储器上并可在所述处理器上运行的指令，其中，所述存储器、所述处理器以及所述通信接口之间通过内部连接通路互相通信，其特征在于，所述处理器执行所述指令使得所述装置实现上述权利要求1至权利要求10中任一项所述的方法。
  26. 一种数据传输的装置，所述装置包括存储器、处理器、通信接口及存储在所述存储器上并可在所述处理器上运行的指令，其中，所述存储器、所述处理器以及所述通信接口之间通过内部连接通路互相通信，其特征在于，所述处理器执行所述指令使得所述装置实现上述权利要求11或权利要求12所述的方法。
  27. 一种计算机可读介质，用于存储计算机程序，其特征在于，所述计算机程序包括用于实现上述权利要求1至权利要求10中任一项所述的方法的指令。
  28. 一种计算机可读介质，用于存储计算机程序，其特征在于，所述计算机程序包括用于实现上述权利要求11或权利要求12所述的方法的指令。
  29. 一种计算机程序产品，所述计算机程序产品中包含指令，其特征在于，当所述指令在计算机上运行时，使得计算机实现上述权利要求1至权利要求10中任一项所述的方法。
  30. 一种计算机程序产品，所述计算机程序产品中包含指令，其特征在于，当所述指令在计算机上运行时，使得计算机实现上述权利要求11或权利要求12所述的方法。
  31. 一种芯片装置，包括：输入接口、输出接口、至少一个处理器、存储器，所述输入接口、所述输出接口、所述处理器以及所述存储器之间通过内部连接通路互相通信，所述处理器用于执行所述存储器中的代码，当所述处理器执行所述代码时，所述芯片装置实现上述权利要求1至权利要求10中任一项所述的方法。
  32. 一种芯片装置，包括：输入接口、输出接口、至少一个处理器、存储器，所述输入接口、所述输出接口、所述处理器以及所述存储器之间通过内部连接通路互相通信，所述处理器用于执行所述存储器中的代码，当所述处理器执行所述代码时，所述芯片装置实现上述权利要求11或权利要求12所述的方法。
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