WO2020001093A1 - 通信方法和装置 - Google Patents

通信方法和装置 Download PDF

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Publication number
WO2020001093A1
WO2020001093A1 PCT/CN2019/079272 CN2019079272W WO2020001093A1 WO 2020001093 A1 WO2020001093 A1 WO 2020001093A1 CN 2019079272 W CN2019079272 W CN 2019079272W WO 2020001093 A1 WO2020001093 A1 WO 2020001093A1
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WO
WIPO (PCT)
Prior art keywords
information
network element
data stream
control device
receiving end
Prior art date
Application number
PCT/CN2019/079272
Other languages
English (en)
French (fr)
Inventor
李汉成
吴问付
周汉
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 EP19827572.9A priority Critical patent/EP3799391A4/en
Publication of WO2020001093A1 publication Critical patent/WO2020001093A1/zh
Priority to US17/126,725 priority patent/US11882035B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/25—Mapping addresses of the same type
    • H04L61/2503—Translation of Internet protocol [IP] addresses
    • H04L61/2592—Translation of Internet protocol [IP] addresses using tunnelling or encapsulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/12—Discovery or management of network topologies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/141—Setup of application sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/22—Parsing or analysis of headers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/66—Layer 2 routing, e.g. in Ethernet based MAN's
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/74—Address processing for routing

Definitions

  • the present application relates to the field of communications, and in particular, to a communication method and device.
  • the communication network includes multiple routing devices.
  • the AN network element or UPF network element is connected to the routing device through the N3 interface.
  • the N3 interface uses the GPRS tunneling protocol-user plane (GTP-U) protocol.
  • GTP-U GPRS tunneling protocol-user plane
  • IP network protocol
  • the source IP address or destination IP address is the IP address of the AN network element or the UPF network element, and the route between the AN network element and the UPF network element.
  • the device forwards packets based on IP routing, so that the user's uplink data flow can reach the designated UPF network element and the downlink data flow can reach the designated AN network element.
  • the routing device between the AN network element and the UPF network element forwards the packet based on IP routing
  • the next-hop routing device needs to be selected for the packet based on the routing table and load, so the forwarding path is uncertain.
  • the scheduling policies on each routing device do not guarantee packet forwarding delay. Therefore, forwarding packets based on IP routing cannot guarantee the delay and reliability of message transmission between AN network elements and UPF network elements.
  • Embodiments of the present application provide a communication method and device, which are used to ensure delay and reliability of message transmission between an AN network element and a UPF network element.
  • an embodiment of the present application provides a communication method.
  • the method includes: a control device determining a sending end and a receiving end for data stream communication according to the first instruction information and the second instruction information, wherein the first instruction information is used for The second instruction information is used to indicate that the first device is the receiving end, or the first instruction information is used to indicate that the first device is the receiving end, and the second instruction information is used to indicate that the second device is the receiving end.
  • the data stream includes first information identifying the data stream. The first information is used to instruct the sending end to send data through the data stream, and is also used to instruct the receiving end to receive data through the data stream.
  • the control device obtains the bandwidth information of the data stream.
  • the device sends data stream information and bandwidth information, where the data stream information is used to indicate at least one of the port identifier of the sender and the port identifier of the receiver, and the port identifier of the sender, the port identifier of the receiver, and the bandwidth information are used for the data stream. create.
  • the control device determines a transmitting end and a receiving end that communicate through a data stream, and determines bandwidth information of the data stream.
  • the control device sends bandwidth information of the data stream to other network elements and the port identifier of the port used by the transmitting end and the receiving end to communicate through the data stream, so that the NRF network element, the control device or other control plane network element, and the transmission end
  • the AN network element and the UPF network element at the receiving end can learn the TSN pipeline information of the transmission data stream, and then the TSN pipeline can be established between the AN network element and the UPF network element.
  • the AN network element and the UPF network element transmit the data stream or session through the TSN pipe without the uncertainty of the forwarding path when forwarding packets based on IP routing. This ensures the delay and reliability of message transmission between the AN network element and the UPF network element.
  • the communication method further includes: the control device receives the first instruction information from the first device, and / or receives the second instruction information from the second device.
  • the control device receives the first instruction information from the first device, and / or receives the second instruction information from the second device.
  • This embodiment provides a way for the control device to obtain the first instruction information and the second instruction information.
  • This embodiment provides a way for the control device to obtain the first instruction information and the second instruction information.
  • the communication method further includes: the control device receives the first indication information and the second indication information from the session management function network element. This embodiment provides another way for the control device to obtain the first instruction information and the second instruction information.
  • the communication method further includes: the control device acquires the first instruction information and the second instruction information according to a configuration, a policy, or an arrangement.
  • the control device acquires the first instruction information and the second instruction information according to a configuration, a policy, or an arrangement.
  • This embodiment provides yet another way for the control device to obtain the first instruction information and the second instruction information.
  • the communication method further includes: the control device sends the first instruction information to the first device, and / or sends the second instruction information to the second device.
  • the control device sends the first instruction information to the first device, and / or sends the second instruction information to the second device.
  • the communication method further includes: the control device receives the first information from the sending end and / or the receiving end. This embodiment provides a way for the control device to obtain the first information.
  • the communication method further includes: controlling the device to obtain the first information according to a configuration, a policy, or an arrangement. This embodiment provides another way for the control device to obtain the first information.
  • the communication method further includes: the control device sends the first information to the centralized user configuration network element.
  • This implementation mode enables a centralized user configuration network element to obtain information identifying a data stream.
  • the communication method further includes: the control device receives the first information from the centralized user configuration network element.
  • the control device receives the first information from the centralized user configuration network element. This embodiment provides yet another way for the control device to obtain the first information.
  • the communication method further includes: the control device sends the first information to the sending end and / or the receiving end.
  • This implementation mode enables the sending end and / or the receiving end to learn information identifying the data stream.
  • the communication method further includes: the control device receives the port identifier of the transmitting end from the transmitting end, and receives the port identifier of the receiving end from the receiving end.
  • the control device receives the port identifier of the transmitting end from the transmitting end, and receives the port identifier of the receiving end from the receiving end.
  • the sending, by the control device, data stream information includes: sending, by the control device, data stream information to a centralized user configuration network element.
  • This implementation mode enables a centralized user configuration network element to obtain data stream information.
  • the communication method further includes: the control device receives the device identification of the sending end and the device identification of the receiving end from the session management function network element; and the control device receives the topology of the reliable delay transmission network from the centralized user configuration network element Information, where the topology information includes the correspondence between the device identifier of the sender and the port identifier of the sender, and the correspondence between the device identifier of the receiver and the port identifier of the receiver; the control device uses the device identifier of the sender, the The device identification and topology information acquire the port identification of the sending end and the port identification of the receiving end.
  • This embodiment provides another way for the control device to obtain the port identifier of the sending end and the port identifier of the receiving end.
  • the data flow information includes a port identifier of the sending end
  • the control device sends the data flow information, including: the control device sends the data flow information to the sending end, where the data flow information is used to instruct the sending end to pass the sending end's
  • the port corresponding to the port identifier sends a stream reservation protocol SRP request message to the receiving end.
  • the SRP request message is used to trigger the creation of a data stream.
  • the data flow information includes a port identifier of the receiving end
  • the control device sends the data flow information, including: the control device sends the data flow information to the receiving end, where the data flow information is used to instruct the receiving end to pass the
  • the port corresponding to the port identifier sends an SRP response message to the sender.
  • the SRP response message is used to respond to the SRP request message from the sender.
  • the data stream information includes a reliable delay transmission network identifier, wherein the reliable delay transmission network identifier is associated with the port identifier of the sending end and the port identifier of the receiving end.
  • This embodiment provides a way to implicitly indicate the port identification of the sending end and the port identification of the receiving end.
  • the acquiring, by the control device, the bandwidth information of the data stream includes: the control device receiving the bandwidth information from the sending end and / or the receiving end.
  • This embodiment provides a way for a control device to obtain bandwidth information of a data stream.
  • obtaining the bandwidth information of the data stream by the control device includes: obtaining, by the control device, the bandwidth information according to a configuration, a policy, or an arrangement. This embodiment provides another way for the control device to obtain the bandwidth information of the data stream.
  • sending the bandwidth information includes: controlling the device to send the bandwidth information to the sending end and / or the receiving end.
  • This implementation mode enables the transmitting end and / or the receiving end to know the bandwidth information of the data stream.
  • sending the bandwidth information includes: controlling the device to send the bandwidth information to a centralized user configuration network element.
  • This implementation mode enables a centralized user configuration network element to obtain bandwidth information of a data stream.
  • the communication method further includes: the control device sends the reachability information between the sender and the receiver to the network function storage function network element, and the reachability information is used to indicate that the sender and the receiver are located at the same location Reliable delay transmission network.
  • the control device sends the reachability information between the sender and the receiver to the network function storage function network element, and the reachability information is used to indicate that the sender and the receiver are located at the same location Reliable delay transmission network.
  • This embodiment enables the network function storage function network element to learn the reachability information between the sending end and the receiving end, and E subsequently creates a user stream or session that includes a reliable delay for the user as a basis for selecting a UPF network element.
  • an embodiment of the present application provides a communication method.
  • the method includes: a first device acquiring a port identifier of the first device, wherein the first device is a sending end or a receiving end that communicates through a data stream, and the data stream includes First information identifying the data stream, the first information is used to instruct the sending end to send data through the data stream, and is also used to instruct the receiving end to receive data through the data stream; the first device sends second information indicating the port identification of the first device, The port identifier of the first device is used to create a data flow.
  • the communication method provided in the embodiment of the present application can obtain the port identifier of the port used for communication through the data stream, and indicate the port identifier.
  • the AN network elements and UPF network elements When subsequent AN network elements and UPF network elements create reliable time-delayed data streams or sessions based on the port identifier, the AN network elements and UPF network elements transmit data streams or sessions through the TSN pipe. There will be no IP-based routing and forwarding. The uncertainty of the forwarding path during the message ensures the delay and reliability of the message transmission between the AN network element and the UPF network element.
  • the obtaining, by the first device, the port identifier of the first device includes: receiving, by the first device, a reliable delay transmission network identifier from the control device, and obtaining, by the first device, the first device according to the reliable delay transmission network identifier.
  • the port ID This embodiment provides another way for the first device to obtain the port identifier of the first device.
  • the acquiring, by the first device, the port identifier of the first device includes: receiving, by the first device, the port identifier of the first device from the control device. This embodiment provides another way for the first device to obtain the port identifier of the first device.
  • the first device sending the second information indicating the port identifier of the first device includes: the first device sending the port identifier of the first device to the control device. This embodiment enables the control device to learn the port identifier of the first device.
  • the communication method further includes: the first device sends a stream reservation protocol SRP request message to the second device through a port corresponding to the port identifier of the first device, where the SRP request message is used to trigger data
  • the first device is the sender and the second device is the receiver.
  • the first device sends an SRP response message to the second device through the port corresponding to the port identifier of the first device, where the SRP response message is used to respond to the SRP request message from the second device, and the SRP request message is used to trigger data
  • the first device is the receiving end and the second device is the sending end.
  • This implementation mode enables a sender and a receiver to create a data stream through the SRP protocol.
  • the communication method further includes: the first device receives first instruction information from the control device, and the first instruction information is used to indicate that the first device is a sending end or a receiving end.
  • This implementation mode enables the first device to know whether it is a transmitting end or a receiving end.
  • the communication method further includes: the first device sends first instruction information to the control device, and the first instruction information is used to indicate that the first device is a sending end or a receiving end.
  • the control device enables the control device to know whether the first device is a transmitting end or a receiving end.
  • the communication method further includes: the first device receives bandwidth information of the data stream from the control device. This implementation mode enables the first device to learn the bandwidth information of the data stream.
  • the communication method further includes: the first device sends bandwidth information of the data stream to the control device.
  • the control device enables the control device to learn the bandwidth information of the data stream.
  • the communication method further includes: the first device receives the first information from the control device. This embodiment enables the control device to learn information identifying the data stream.
  • an embodiment of the present application provides a communication apparatus for performing the foregoing first aspect and the methods described in various possible implementation manners of the first aspect.
  • an embodiment of the present application provides a communication apparatus for performing the foregoing second aspect and the methods described in various possible implementation manners of the second aspect.
  • an embodiment of the present application provides a communication system including the communication device according to the third aspect and the communication device according to the fourth aspect.
  • an embodiment of the present application provides a communication device including a processor and a memory.
  • the memory is used to store a program, and the processor calls the program stored in the memory to execute the foregoing first aspect and various possible implementations of the first aspect.
  • an embodiment of the present application provides a storage medium on which a computer program is stored.
  • the computer program is executed by a processor, the foregoing first aspect and the methods described in various possible implementation manners of the first aspect are performed, or an execution is performed.
  • the second aspect and the methods described in various possible implementations of the second aspect are performed.
  • an embodiment of the present application provides a computer program product that, when the computer program product runs on a communication device, causes the communication device to perform the foregoing first aspect and the methods described in various possible implementation manners of the first aspect, Or perform the method described in the second aspect and the various possible implementation manners of the second aspect.
  • an embodiment of the present application provides a chip system, including: a processor, configured to support a communication device to execute the foregoing first aspect and the methods described in various possible implementation manners of the first aspect, or execute the foregoing second aspect. And the method described in various possible embodiments of the second aspect.
  • FIG. 1 is a schematic diagram of a GTP-U protocol stack according to an embodiment of the present application
  • FIG. 2 is a schematic architecture diagram of a communication system according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a mobile phone according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a base station according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of an Ethernet frame format of a layer 2 encapsulated message according to an embodiment of the present application
  • FIG. 7 is a schematic diagram of a Layer 2 switching principle provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a TSN network according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a GTP-U pipeline or a two-layer pipeline according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a TSN pipeline message according to an embodiment of the present application.
  • FIG. 11A is a first schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 11B is a second schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 12 is a third flowchart of a communication method according to an embodiment of the present application.
  • FIG. 13 is a fourth flowchart of a communication method according to an embodiment of the present application.
  • FIG. 14 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 15 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • 16 is a schematic flowchart VII of a communication method according to an embodiment of the present application.
  • FIG. 17 is a schematic flowchart eight of a communication method according to an embodiment of the present application.
  • FIG. 18 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 19 is a first schematic structural diagram of a communication device according to an embodiment of the present application.
  • 20 is a second schematic structural diagram of a communication device according to an embodiment of the present application.
  • 21 is a first schematic structural diagram of another communication device according to an embodiment of the present application.
  • 22 is a second schematic structural diagram of another communication device according to an embodiment of the present application.
  • FIG. 23 is a first schematic structural diagram of another communication device according to an embodiment of the present application.
  • FIG. 24 is a second schematic structural diagram of another communication device according to an embodiment of the present application.
  • the embodiments of the present application are described based on the scenario of a 5G network in a wireless communication network. It should be noted that the solutions in the embodiments of the present application can also be applied to other wireless communication networks, and the corresponding names can also be used in other wireless communication networks. The corresponding function name is replaced.
  • the communication system architecture includes: a terminal device 201, a (radio) access network ((R) AN) network element 202, and an access and mobility management function ( access and mobility management function (AMF) network element 203, session management function (SMF) network element 204, user plane function (UPF) network element 205, network function storage function (network function function repository function, (NRF) network element 206, Centralized User Configuration (CUC) network element 207, Centralized Network Configuration (CNC) network element 208.
  • the communication system may further include a controller device 209.
  • control device 209 may be integrated with the SMF network element 204. In other words, the functions of the control device 209 may be performed by the SMF network element 204. In another possible design, the control device 209 may be integrated with the CUC network element 207. In other words, the functions of the control device 209 may be performed by the CUC network element 207. In addition, the SMF network element 204 may be integrated with the CUC network element 207. For example, the functions of the CUC network element 207 may be performed by the SMF network element 204.
  • the interface names between the various network elements in the figure are only examples, and the interface names may be other names in the specific implementation, which is not specifically limited in the embodiment of the present application.
  • the interface between the terminal device 201 and the AMF network element 203 may be an N1 interface
  • the interface between the RAN network element 202 and the AMF network element 203 may be an N2 interface
  • the interface between the RAN network element 202 and the UPF network element 205 It can be N3 interface
  • the interface between UPF network element 205 and SMF network element 204 can be N4 interface
  • the interface between AMF network element 203 and SMF network element 204 can be N11 interface
  • UPF network element 205 and data network (data The network (DN) interface can be an N6 interface.
  • the terminal device 201 involved in the embodiment of the present application may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem; it may also include a subscriber unit (subscriber unit), cellular phone, smart phone, wireless data card, personal digital assistant (PDA) computer, tablet computer, wireless modem (modem), handheld device (handheld), knee Laptop computer, cordless phone or wireless local loop (WLL) station, machine type communication (MTC) terminal, user equipment (UE), mobile Station (mobile station, MS), terminal device (terminal device), or relay user equipment.
  • the relay user equipment may be, for example, a 5G residential gateway (RG).
  • RG 5G residential gateway
  • the devices mentioned above may be collectively referred to as terminal devices.
  • the mobile phone 201 may include a radio frequency (RF) circuit 300, a memory 320, other input devices 330, a display screen 340, a sensor 350, an audio circuit 360, an I / O subsystem 370, and a processor 380 , And power supply 390 and other components.
  • RF radio frequency
  • the structure of the mobile phone shown in the figure does not constitute a limitation on the mobile phone, and may include more or fewer parts than shown in the figure, or combine some parts, or disassemble some parts, or Different component arrangements.
  • the display screen 340 belongs to a user interface (UI), and the display screen 340 may include a display panel 341 and a touch panel 342.
  • the mobile phone may further include a functional module or device such as a camera, a Bluetooth module, and the like is not repeated here.
  • the processor 380 is connected to the RF circuit 300, the memory 320, the audio circuit 360, the I / O subsystem 370, and the power source 390, respectively.
  • the I / O subsystem 370 is connected to other input devices 330, a display screen 340, and a sensor 350, respectively.
  • the RF circuit 300 may be used for receiving and sending signals during sending and receiving information or during a call. In particular, after receiving downlink information from a network device, it is sent to the processor 380 for processing.
  • the memory 320 may be used to store software programs and modules.
  • the processor 380 executes various functional applications and data processing of the mobile phone by running software programs and modules stored in the memory 320, for example, methods and functions of the terminal device in the embodiments of the present application.
  • the other input device 330 may be used to receive inputted numeric or character information, and generate keyboard signal inputs related to user settings and function control of the mobile phone.
  • the display screen 340 may be used to display information input by the user or information provided to the user and various menus of the mobile phone, and may also accept user input.
  • the sensor 350 may be a light sensor, a motion sensor, or other sensors.
  • the audio circuit 360 may provide an audio interface between the user and the mobile phone.
  • the I / O subsystem 370 is used to control input and output external devices.
  • the external devices may include other device input controllers, sensor controllers, and display controllers.
  • the processor 380 is the control center of the mobile phone 200, and uses various interfaces and lines to connect various parts of the entire mobile phone.
  • the power supply 390 (such as a battery) is used to supply power to the foregoing components.
  • the power supply can be logically connected to the processor 380 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption through the power management system.
  • the terminal device 201 may receive a signal from the RAN network element 202 through the RF circuit 300.
  • the RAN network element 202 is a device that provides wireless access to the terminal device 201.
  • the RAN network element 202 includes, but is not limited to, an eNodeB, a wireless fidelity (Wi-Fi) access point, a worldwide microwave interoperability (microwave access) base station, and the like.
  • the RAN network element 202 in the embodiment of the present application may include a single RAN network element or a dual RAN network element.
  • the dual RAN network element includes a primary radio access network (M-RAN) network element and a secondary radio access network (S-RAN) network element.
  • M-RAN primary radio access network
  • S-RAN secondary radio access network
  • a single RAN network element or a dual RAN network element can communicate with a UPF network element through a dual tunnel.
  • the base station 202 may include an indoor baseband processing unit (building baseband unit (BBU) 401) and a remote radio module (remote radio unit (RRU) 402).
  • the RRU 402 is connected to the antenna feeder system (ie, antenna) 403, and the BBU is connected.
  • 401 and RRU 402 can be disassembled and used as required.
  • the BBU 401 may include a processor 431, a memory 432, and a bus system 433.
  • the processor 431 and the memory 432 of the BBU 401 are connected to each other through the bus system 433.
  • the above bus system may be a peripheral component interconnect standard bus or an extended industry standard structure bus.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one line is used in the figure, but it does not mean that there is only one bus or one type of bus.
  • the RRU 402 may include an RF circuit 434, and the base station 202 may further include an optical fiber 435 and a coaxial cable 436.
  • the RF circuit 434 in the RRU 402 and the BBU 401 are connected to each other through an optical fiber 435, and the RF circuit 434 in the RRU 402 and the antenna 403 are connected to each other through a coaxial cable 436.
  • the base station may include various forms of base stations, such as: macro base stations, micro base stations (also called small stations), relay stations, access points, and the like.
  • the RAN network element 202 described in the embodiment of the present application is used to transmit data between the terminal device 201 and a core network device.
  • the AMF network element 203 may be responsible for mobility management in a mobile network, such as user location update, user registration network, user switching, and the like.
  • the SMF network element 204 can be responsible for session management in the mobile network, such as session establishment, modification, and release. Specific functions such as assigning IP addresses to users, and selecting UPF network elements that provide message forwarding functions.
  • the UPF network element 205 may be responsible for processing user packets, such as forwarding and charging.
  • the NRF network element 206 can provide functions such as registration and discovery of network function instances.
  • the CUC network element 207 and the CNC network element 208 are control devices in a time sensitive network (TSN) network.
  • TSN time sensitive network
  • the CUC network element 207 is used to manage terminals and services, such as receiving registration of the sender (talker) and receiver (listener) in the TSN network element, and exchange configuration parameters, etc .
  • the CNC network element 208 is used to manage the exchange in the TSN network. Nodes, such as maintaining the topology of the TSN network, calculating the scheduling policies on the switching nodes, and issuing them to the switching nodes.
  • the control device 209 is used to manage the TSN network between the AN network element 202 and the UPF network element 205.
  • the switching device 210 is configured to transmit a message between the AN network element 202 and the UPF network element 205.
  • the AMF network element 203, SMF network element 204, UPF network element 205, NRF network element 206, and control device 209 can be collectively referred to as the core network element.
  • the following takes a network device as an example. The structure is described. The embodiments of the present application do not limit that each core network element must have units or devices as shown in the following figure, and may have more or fewer units or devices.
  • the network device 500 may include at least one processor 501, a communication line 502, a memory 503, and at least one communication interface 504.
  • the processor 501 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more processors for controlling the execution of the program program of the present application. integrated circuit.
  • the communication line 502 may include a path for transmitting information between the aforementioned components.
  • the communication interface 504 uses any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. .
  • the memory 503 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type that can store information and instructions Dynamic storage device, can also be electrically erasable programmable read-only memory (electrically erasable programmable read-only memory (EEPROM)), read-only compact disc (compact disc-read-only memory (CD-ROM) or other optical disc storage, optical disc storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this.
  • ROM read-only memory
  • RAM random access memory
  • Dynamic storage device can also be electrically erasable programmable read-only memory (electrically erasable programmable read-only memory (EEPROM)), read-only compact disc (compact
  • the memory may exist independently, and is connected to the processor through the communication line 502.
  • the memory can also be integrated with the processor.
  • the memory 503 is configured to store a computer execution instruction (which may be referred to as an application program code) for executing the solution of the present application, and the execution is controlled by the processor 501.
  • the processor 501 is configured to execute computer execution instructions stored in the memory 503, so as to implement the method provided in the following embodiments of the present application.
  • the communication method and device in order to solve the problem that the AN network element and the UPF network element forward the message based on IP routing and cannot guarantee the delay and reliability of the message transmission.
  • the network element acts as the sender and receiver of the TSN network.
  • a TSN pipeline is established between the AN network element and the UPF network element.
  • the data stream or The session ensures the delay and reliability of message transmission between the AN network element and the UPF network element.
  • Layer 2 switching belongs to link layer switching, and is forwarded based on media access control (MAC) addresses.
  • the switching device 210 obtains the forwarding port by querying the MAC learning table. For addresses not recorded in the MAC learning table, it is broadcast. Forward. As shown in Fig. 6, it is an Ethernet frame format of a Layer 2 encapsulated message, where the destination address (DA) represents the destination MAC address, and the source address (SA) represents the source MAC address.
  • the type ( TYPE) indicates the Ethernet type of the Ethernet frame, data (DATA) indicates a data segment, and cyclic redundancy check (cyclic redundancy check) is used to detect or verify errors that may occur after data transmission or storage.
  • a VLAN tag is added between the SA field and the TYPE field, including an Ethernet type value (type 2) 0x8100, a priority field, a priority field, A standard format indicator (CFI) field and a VLAN ID field.
  • the ether type value 0x8100 is also called a tag protocol identifier (TPID) in the VLAN tag, and it may also be another value.
  • the Ethernet frame of the packet after Layer 2 encapsulation may not have a VLAN tag or at least one VLAN tag. It should be noted that the ether type (type 1) of the ether frame is not related to the ether type value (type 2) in the TAG.
  • the switching device 210 stores a MAC learning table, which records the correspondence between the user's MAC address and the port. If it is based on VLAN and MAC address forwarding, the MAC learning table will also contain the corresponding VLAN information.
  • the switching device receives a packet with the destination address of MAC4 from port 1, it queries the MAC learning table to obtain the port information corresponding to MAC4 as port 2, and then sends the packet out of port 2.
  • the MAC4 entry in the MAC learning table is learned when port 2 receives a packet with the source MAC address of MAC4, and it can also be obtained through configuration.
  • the TSN network includes switching nodes (switching node 1, switching node 2 and switching node 3 in the figure) and data terminals (data terminal 1 and data terminal 2 in the figure).
  • the data flow in the TSN network is a unidirectional flow.
  • the data terminal includes a sender (talker) and a receiver (listener).
  • the TSN standard defines the behavior of data terminals and switching nodes, and the scheduling method of switching data flows forwarded by switching nodes, so as to achieve reliable delay transmission.
  • the switching node in the TSN network uses the destination MAC address of the message as the information to identify the data flow, and reserves resources and schedules according to the delay requirements of the user stream to be transmitted, so as to ensure the time of message transmission according to the generated scheduling policy. Delay and reliability.
  • the TSN network currently includes two resource reservation and management methods:
  • Method 1 Create a forwarding channel through a stream reservation protocol (SRP). It is assumed that the data terminal 1 in the figure is a talker, and before it sends a data stream, resource reservation is performed on the switching node between the sender and the receiver through the SRP protocol.
  • SRP stream reservation protocol
  • the data terminal 1 sends an SRP request message to the switching node 1.
  • the SRP request message includes information identifying a data flow, a VLAN, a class of service (CoS), and delay information.
  • the information identifying the data flow may include a flow identification (ID) and / or a destination MAC address of the data flow; VLANs and CoS are used to identify the TSN forwarding domain; delay information is used to determine whether the forwarding path meets the delay requirements of the data flow .
  • the switching node 1 After receiving the SRP request message, the switching node 1 superimposes the delay information in the SRP request with the expected delay of the node and broadcasts the SRP request message on the ports (ports 3 and 4) in the TSN network.
  • Switching node 2 and switching node 3 both receive the SRP request message. Because switching node 3 is currently only in the same TSN network as switching node 1, it is no longer forwarded to other switching nodes. Because the switching node 2 and the data terminal 2 are located in the same TSN network, after receiving the SRP request message, the switching node 2 superimposes the delay information in the SRP request with the expected delay of its own node, and then the port in the TSN network (Port 3) sends the SRP request message to data terminal 2.
  • data terminal 2 After receiving the SRP request message, data terminal 2 determines that the SRP request message corresponds to the data stream that it needs to receive according to the information identifying the data stream and the application information in the SRP request message, and the delay information meets the preset requirements. In this case, an SRP response message is sent from the port that received the SRP request message.
  • the application information may be obtained through configuration or received from other network elements.
  • Switching node 2 and switching node 1 in the TSN network reserve the bandwidth and scheduling resources after receiving the SRP response message, and then forward the SRP response message from the port receiving the SRP request message.
  • a forwarding channel will be created between the sending end and the receiving end, and each switching node reserves relevant resources according to the SRP request; after that, each switching node will receive the data stream sent by the sending end according to the reservation. Resources are scheduled and forwarded to ensure the delay and reliability of message transmission.
  • Method 2 The centralized management method defined by IEEE in 802.1QCC.
  • the management plane contains CUC network elements and CNC network elements.
  • the CUC network elements are used to manage terminals and services, such as receiving sender and receiver registration, and exchanging configuration parameters.
  • CNC network elements manage switching nodes in the TSN network, such as maintaining TSN. The topology of the network, computing the scheduling strategy on the switching nodes, and issuing it to the switching nodes, etc.
  • the specific process can include the following:
  • the CUC network element receives the registration request from the data terminal as the sender or receiver of the TSN network.
  • the request includes the instruction information indicating that the data terminal is the sender or receiver, information identifying the data stream, bandwidth requirements, and delay requirements. Wait.
  • the CUC network element After receiving the above information, the CUC network element sends a request to the CNC network element to create a data stream.
  • the CNC network element Before the data stream is created, the CNC network element will generate the topology of the TSN network, such as the connection topology between the switching nodes and the connection topology between the switching nodes and the data terminals. After receiving the request to create a data stream from the CUC network element, the CNC network element calculates the forwarding path in the TSN network and the scheduling policy of each switching node on the path according to the bandwidth and delay requirements of the data stream, and then issues the policy. To the corresponding switching node.
  • the AN network element and the UPF network element are respectively a transmitting end and a receiving end that communicate through a data stream in a TSN network.
  • TSN pipes may include multiple types of forwarding channels, such as GTP-U pipes, Layer 2 pipes, Virtual transmission pipelines, etc.
  • FIG. 9 it is a schematic diagram of a GTP-U pipeline or a Layer 2 pipeline between an AN network element and a UPF network element created in a TSN network.
  • the GTP-U pipeline refers to the pipeline bound to the IP address information of the GTP-U tunnel.
  • the information identifying the data flow is bound to the IP address information of the GTP-U tunnel, that is, the information identifying the data flow and the GTP-U tunnel.
  • a GTP-U pipeline may include at least one GTP-U tunnel, and each GTP-U tunnel is distinguished by a tunnel endpoint identifier (TEID).
  • TEID tunnel endpoint identifier
  • a Layer 2 pipe refers to a pipe that is bound to Layer 2 information (that is, information that identifies a data stream).
  • a Layer 2 pipe is not bound to the IP address information of the GTP-U tunnel. That is, a Layer 2 pipe can be determined by the information that identifies the data stream. ; A Layer 2 pipe may include at least one GTP-U tunnel, and each GTP-U tunnel is distinguished by the TEID and the IP address of the GTP-U tunnel.
  • the TSN pipeline information created by the SMF network element or the control device can be stored in the NRF network element, control device, or other control plane network element for subsequent users to create a reliable delay data stream or session as an option
  • the TSN pipeline information may include information identifying the data flow, the equipment identity of the AN network element, the equipment identity of the UPF network element, the port identity of the AN network element, the port identity of the UPF network element, the reliable delay transmission network identity, and the GTP-U tunnel. At least one of the source IP address and destination IP address.
  • the TSN pipeline information can also be stored on the corresponding UPF network element and AN network element, which is used to create GTP-U tunnels as AN network element and UPF network element when creating a reliable delayed data stream or session. Basis.
  • the NRF network element, control device, or other control plane network element may also save the reachability information of the AN network element and the UPF network element in the TSN network as a basis for selecting a UPF network element when creating a user session.
  • the information indicates that the transmitting end and the receiving end are located in the same reliable delay transmission network.
  • the NRF network element, control device, or other network element may also save the reachability information associated with the port identifier of the AN network element and the port identifier of the UPF network element as the basis for selecting a forwarding port when creating a session or data stream ( For example, for Layer 2 forwarding, the N3 forwarding interface is selected.)
  • the reachability information indicates that the port on the sending end and the port on the receiving end are located in the same reliable delay transmission network. If the port of the sending end and the port of the receiving end are abstracted as a device, the above reachability information can be uniformly expressed as: the reachability information is used to indicate that the sending end and the receiving end are located in the same reliable delay transmission network. Since no GTP-U pipeline is created in this scenario, it can be considered as a virtual transmission pipeline.
  • TSN pipe messages can carry IP messages or Ethernet messages.
  • the outer encapsulation part of the TSN pipe message includes the source MAC address (S-MAC1), the destination MAC address (D-MAC1), the IP address (IP) of the GUP-U tunnel, and the GUP-U tunnel.
  • TEID GTU-U
  • the source MAC address (S-MAC1) and the destination MAC address (D-MAC1) are the MAC addresses used to transmit messages between the AN network element and the UPF network element.
  • the MAC address can be a control device, an SMF network element, or a CUC. The address assigned by the network element, or the MAC address of the AN network element and / or the UPF network element.
  • the IP address and TEID of the GTP-U tunnel are determined by the SMF network element or the UPF network element and are used to determine the Layer 2 pipeline.
  • the inner payload part encapsulated by the TSN pipe message is the user flow message, including the destination MAC address (D-MAC2), source MAC address (S-MAC2), and data part (DATA).
  • D-MAC2 destination MAC address
  • S-MAC2 source MAC address
  • DATA data part
  • the source MAC address (S-MAC2) and destination MAC address (D-MAC2) in a user flow packet are MAC addresses used to transmit the packet in the access network and / or the DN network.
  • the information for identifying the data flow includes a flow identification (ID) of the data flow and / or a destination MAC address (D-MAC1) of the TSN pipe message.
  • the flow identification (ID) may include the source MAC address (S-MAC1) of the TSN pipe message and the two-byte number as the identification.
  • An embodiment of the present application provides a communication method.
  • a control device determines a sending end and a receiving end of a data stream communication in a TSN network, and determines bandwidth information of the data flow.
  • the control device sends bandwidth information of the data flow to other network elements, and
  • the basic information of the TSN pipeline of the data stream, and then the TSN pipeline can be established between the AN network element and the UPF network element.
  • the AN network element and the UPF network element transmit the data stream or session through the TSN pipe without the uncertainty of the forwarding path when forwarding packets based on IP routing. This ensures the delay and reliability of message transmission between the AN network element and the UPF network element.
  • the TSN pipeline information stored on the AN network element, UPF network element, NRF network element, control device, or other control plane network element may include:
  • the GTP-U pipeline information may include at least one of the equipment identification of the AN network element, the equipment identification of the UPF network element, transmission delay information, and information identifying the data flow.
  • One item For example, (UPF1, AN1, 10ms, 012a.3322.00af), where UPF1 and AN1 are device identifications, 10ms represents the maximum transmission delay of the GTP-U pipeline between UPF1 and AN1 network elements, and 012a.3322.00af represents Information identifying the data flow.
  • the reachability information may include the equipment identification of the AN network element and the equipment identification of the UPF network element, or may include the identification of the TSN network and the AN in the TSN network
  • the device identification of the network element and / or the device identification of the UPF network element For example, (UPF1, AN1, AN2 7) means that the UPF1 network element, AN1 network element, AN2 network element ... are in the same TSN network.
  • TSN1, UPF1, UPF2 means UPF1 network element, UPF2 network element ... In the same TSN network, the identity of the TSN network is TSN1.
  • the reachability information may include the device identity and port identity of the AN network element, and / or, the device identity and port identity of the UPF network element;
  • the identifier of the TSN network and the port identifier of the AN network element and / or the port identifier of the UPF network element in the TSN network may be included.
  • ⁇ (UPF1, p1, p2 ...), (AN1, p1, p2 ...) ⁇ indicates that the ports p1, p2, ... of the UPF1 network element and the ports p1, p2 of the AN1 network element are in the same TSN network.
  • TSN1, (UPF1, p1, p2, ...)) represents the ports p1, p2, ... of the UPF1 network element.
  • the network identifier is TSN1.
  • the configuration, strategy or configuration in the orchestration refers to some or all of the information of the TSN pipeline before the device runs the function, and is a static configuration;
  • the policy refers to that the device generates the TSN pipeline according to certain conditions.
  • orchestration refers to obtaining part or all of the TSN pipeline from the orchestration layer (for example, by instructions from the orchestration layer).
  • the first instruction information is used to indicate that the first device is a transmitting end
  • the second instruction information is used to indicate that the second device is a receiving end; or the first instruction information is used to indicate that the first device is a receiving end.
  • the second instruction information is used to indicate that the second device is a transmitting end.
  • the first indication information and the second indication information may be one indication information, that is, the indication information is used to indicate that one of the first device and the second device is a transmitting end and the other is a receiving end.
  • the description is made in a manner that the first indication information and the second indication information are separated, but the embodiment of the present application does not limit the description manner.
  • the first device and the second device cannot be the sending end or the receiving end at the same time, that is, one of the first device and the second device is the sending end and the other is receiving. end.
  • the first device and the second device may be data terminals in a TSN network, the first device may be an AN network element, and the second device may be a UPF network element; or, the first device may be a UPF network
  • the second device may be an AN network element. If the AN network element is the transmitting end and the UPF network element is the receiving end, uplink transmission is performed; if the UPF network element is the transmitting end and the AN network element is the receiving end, downlink transmission is performed.
  • the method includes at least steps S1101-S1103.
  • the control device determines, according to the first instruction information and the second instruction information, the sending end and the receiving end of the data stream communication.
  • the control device can know which one of the first device and the second device that is communicating through the data stream is the sending end and which is the receiving end.
  • the first device may send the first instruction information to the control device, and the control device may receive the first instruction information from the first device.
  • the second device may send the second instruction information to the control device, and the control device may receive the second instruction information from the second device.
  • the first device may be configured with the first indication information. If the first device is registered with the control device, the first indication information may be included in the registration request message.
  • the control device may determine the second instruction information according to the configuration, policy, or orchestration; or the second device may be configured with the second instruction information. If the second device registers with the control device, the second instruction information may be included in the registration request message.
  • the control device may receive the first indication information and the second indication information from the SMF network element.
  • the SMF network element may determine the first indication information and the second indication information according to the user session information.
  • control device may obtain the first instruction information and the second instruction information according to a configuration, a policy, or an arrangement.
  • the control device may send the first instruction information to the first device, and accordingly, the first device may receive the first instruction information from the control device. For example, if the control device does not receive the first instruction information from the first device, the control device may obtain the first instruction information according to a configuration, a policy, or an arrangement, and send the first instruction information to the first device.
  • control device may send the second instruction information to the second device, and accordingly, the second device may receive the second instruction information from the control device. For example, if the control device does not receive the second instruction information from the second device, the control device may obtain the second instruction information according to the configuration, policy, or orchestration, and send the second instruction information to the second device.
  • the data stream may include first information identifying the data stream.
  • the first information is used to instruct the sending end to send data through the data stream, and is also used to instruct the receiving end to receive data through the data stream.
  • the first information may include a flow identification (ID) and / or a destination MAC address of the data flow. That is, the first information may implicitly indicate the data flow, for example, instruct the receiving end to determine that the data flow is sent to the local end according to the destination MAC address of the data flow.
  • the first information may also indicate the data stream explicitly. For example, it is instructed to create a data stream with the flow identifier flow1 between the sender and the receiver.
  • the sender may send the data stream according to the flow identifier flow1, and the receiver may The flow identifier flow1 receives a data flow.
  • the AN network element, UPF network element, NRF network element, control device, or other control plane network element may obtain the corresponding data flow according to the first information.
  • the sending end and / or the receiving end may send the first information to the control device, and accordingly, the control device may receive the first information from the sending end and / or the receiving end.
  • the sending end and / or the receiving end may be configured with the first information, and if the sending end and / or the receiving end are registered with the control device, the first information may be included in the registration request message.
  • control device may obtain the first information according to a configuration, a policy, or an arrangement.
  • control device may receive the first information from the CUC network element.
  • the first information may be obtained by the CUC network element.
  • the control device obtains bandwidth information of the data stream.
  • the control device can obtain the maximum bandwidth of user data that can be carried by the data stream according to the bandwidth information of the data stream.
  • the bandwidth information of the data stream can be expressed in various forms, and can include the maximum bandwidth. For example, it can be expressed as 1Gbps. Alternatively, it may include a packet sending interval, a maximum number of packets in the interval, and a maximum packet length. For example, a 1Gbps bandwidth can be expressed as a packet sending interval of 1 millisecond, a maximum number of packets in the interval of 1000, a maximum packet length of 1k bytes, and so on.
  • the control device may receive the bandwidth information of the data stream from the transmitting end and / or the receiving end.
  • the bandwidth information of the data stream can be configured on the sending end and / or the receiving end. If the sending end and / or the receiving end are registered with the control device, the bandwidth information of the data flow can be included in the registration request message.
  • control device may obtain the bandwidth information of the data stream according to a configuration, a policy, or an orchestration.
  • control device may receive the bandwidth information of the data stream from the transmitting end and / or the receiving end.
  • S1103 The control device sends data stream information and sends bandwidth information of the data stream.
  • the data flow information is used to indicate at least one of the port identification of the sending end and the port identification of the receiving end, and the port identification of the sending end, the port identification of the receiving end, and the bandwidth information are used to create the data flow.
  • the data flow information may include at least one of a port identifier of the sending end and a port identifier of the receiving end.
  • the data stream information may include a reliable delay transmission network identifier, where the reliable delay transmission network identifier is associated with the port identifier of the sending end and the port identifier of the receiving end.
  • the control device can know the port used by the transmitting end and the receiving end through data flow communication according to the port identification of the transmitting end and the port identification of the receiving end.
  • the sending end may send the port identification of the sending end to the control device, and accordingly, the control device may receive the port identification of the sending end from the sending end.
  • the sender's port identifier can be configured on the sender. If the sender registers with the control device, the sender's port identifier can be included in the registration request message. And / or, the receiving end may send the port identification of the receiving end to the control device, and accordingly, the control device may receive the port identification of the receiving end from the receiving end.
  • the receiving end may be configured with the port identification of the receiving end. If the receiving end registers with the control device, the registration request message may include the port identification of the receiving end.
  • the control device may receive the device identifier of the sending end and the device identifier of the receiving end from the SMF network element.
  • the control device obtains the topology information of the reliable time-delay transmission network.
  • the topology information includes the correspondence between the device identifier of the sending end and the port identifier of the sending end, and may also include the correspondence between the device identifier of the receiving end and the port identifier of the receiving end .
  • the control device may receive the topology information of the reliable delay transmission network from the CUC network element.
  • the control device obtains the port identification of the sending end and the port identification of the receiving end according to the device identification of the sending end, the device identification of the receiving end, and the topology information.
  • control device may send data stream information to the CUC network element.
  • the control device may send data flow information to the sending end, where the data flow information is used to instruct the sending end to send a flow reservation protocol SRP request message to the receiving end through a port corresponding to the port identification of the sending end,
  • the SRP request message is used to trigger the creation of a data stream.
  • the transmitting end can receive data stream information from the control device.
  • the data flow information may include only the port identifier of the sending end.
  • the control device may send data stream information to the receiving end, where the data stream information is used to instruct the receiving end to send an SRP response message to the sending end through a port corresponding to the port identification of the receiving end, and the SRP response message is used for It is used to respond to the SRP request message from the sender.
  • the receiving end can receive data stream information from the control device.
  • the data flow information may include only the port identifier of the receiving end.
  • the control device may send bandwidth information of the data stream to the sending end and / or the receiving end.
  • the transmitting end and / or the receiving end may receive the bandwidth information of the data stream from the control device. For example, if the first device sends bandwidth information of the data stream when registering with the control device, and the second device does not send bandwidth information of the data stream when registering with the control device, the control device may send the bandwidth information of the data stream to the second device.
  • the control device may obtain the bandwidth information of the data stream according to the configuration, policy, or orchestration, and send the bandwidth information to the first device and the second device Bandwidth information of the transmitted data stream.
  • the control device may send bandwidth information of the data stream to the CUC network element, and the bandwidth information of the data stream is used when the CUC network element creates the data stream so that the created data stream meets the bandwidth requirement. For example, after a control device receives bandwidth information of a data stream from a transmitting end and / or a receiving end, or obtains bandwidth information of a data stream according to a configuration, a policy, or an arrangement, it may send the bandwidth information of the data stream to a CUC network element.
  • control device may send the first information to the CUC network element.
  • the control device may send the first information to the CUC network element after receiving the first information from the sending end and / or the receiving end, or after obtaining the first information according to a configuration, a policy, or an arrangement.
  • the control device may send the first information to the sending end and / or the receiving end. For example, after the control device receives the first information from the CUC network element, or obtains the first information according to the configuration, policy, or orchestration, the control device may send the first information to the sending end and / or the receiving end. Or after the control device receives the first information from the first device, it may send the first information to the second device. Or after the control device receives the first information from the second device, it may send the first information to the first device.
  • the control device determines a transmitting end and a receiving end that communicate through a data stream, and determines bandwidth information of the data stream.
  • the control device sends bandwidth information of the data stream to other network elements and the port identifier of the port used by the transmitting end and the receiving end to communicate through the data stream, so that the NRF network element, the control device or other control plane network element, and the transmission end
  • the AN network element and the UPF network element at the receiving end can learn the TSN pipeline information of the transmission data stream, and then the TSN pipeline can be established between the AN network element and the UPF network element.
  • the AN network element and the UPF network element transmit the data stream or session through the TSN pipe without the uncertainty of the forwarding path when forwarding packets based on IP routing. This ensures the delay and reliability of message transmission between the AN network element and the UPF network element.
  • the communication method may include S1104 and S1105. It should be noted that FIG. 11B uses the first device as an example for description. However, the method shown in FIG. 11B is also applicable to the second device (the receiving end that communicates through the data stream), and will not be described again.
  • the first device obtains a port identifier of the first device.
  • the first device may be a transmitting end that communicates through a data stream.
  • the first device may be an AN network element or a UPF network element.
  • the first device may obtain the port identifier of the first device according to the configuration.
  • the first device may receive a reliable delay transmission network identifier from the control device. As described in step S1103, since the reliable delay transmission network identifier is associated with the port identification of the sending end and the port identification of the receiving end, the first device can obtain the port identification of the first device according to the reliable delay transmission network identification.
  • the first device may receive the port identifier of the first device from the control device.
  • the network identifier of the reliable delay transmission or the port identifier of the first device may be carried in the data stream information.
  • the first device sends second information indicating a port identifier of the first device.
  • the port identifier of the first device is used to create a data stream.
  • the second information may indicate the port identification of the first device implicitly or explicitly.
  • the first device may send a reliable delay transmission network identifier to the control device, and the reliable delay transmission network identifier is associated with the port identifier of the first device.
  • the first device may send the port identifier of the first device to the control device.
  • the port identifier of the first device may be stored as a part of the TSN pipeline information to the control network element, the NRF network element, or other control plane network element.
  • the control network element may save only the first information and the device identifications of the transmitting end and the receiving end.
  • the first device may further send an SRP request message to the second device through a port corresponding to the port identifier of the first device.
  • the SRP request message is used to trigger the creation of a data stream.
  • the first device is a sending end and the second device is a receiving end.
  • the second device may send an SRP response message to the first device through the port corresponding to the port identifier of the second device.
  • the SRP response message is used to respond to the SRP request message from the first device.
  • the communication method provided in the embodiment of the present application can obtain the port identifier of the port used for communication through the data stream, and indicate the port identifier.
  • the AN network elements and UPF network elements When subsequent AN network elements and UPF network elements create reliable time-delayed data streams or sessions based on the port identifier, the AN network elements and UPF network elements transmit data streams or sessions through the TSN pipe. There will be no IP-based routing and forwarding The uncertainty of the forwarding path during the message ensures the delay and reliability of the message transmission between the AN network element and the UPF network element.
  • the AN network element is used as the first device, and the UPF network element is used as an example for description. It can be understood that the AN network element may be the second device, and the UPF network element may also be the first device.
  • FIG. 12 to FIG. 16 are several implementation manners of the communication method shown in FIG. 11A and FIG. 11B.
  • the control device may receive the port identification of the transmitting end, the port identification of the receiving end, the first indication information, and the second indication information from the transmitting end and the receiving end, and then execute the process of the first or second manner in FIG. 8.
  • the control device may obtain the first instruction information and the second instruction information according to the configuration, the policy, or the arrangement, and determine the sending end and the receiving end of the data stream communication according to the first instruction information and the second instruction information. , And then execute the process of the first or second method in FIG. 8 to establish a TSN pipeline.
  • the control device may receive the port identifier of the sending end and the port identifier of the receiving end from the sending end and the receiving end, and obtain the first instruction information and the second instruction information according to the configuration, policy, or orchestration, or from the SMF network.
  • the element receives the first indication information and the second indication information, and then executes the process of the first or second mode in FIG. 8 to establish a TSN pipeline.
  • the control device may receive the device identifier of the sending end, the device identifier of the receiving end, the first indication information, and the second indication information from the SMF network element, and receive the topology information of the reliable delay transmission network from the CUC network element.
  • the control device instructs the sender and receiver port identifiers to instruct the sender and receiver port identifiers to register with the CUC network element according to the port identifiers to establish a TSN pipeline.
  • the method may include steps S1201-S1213. If the forwarding channel is created by the second method shown in FIG. 8, the method may include steps S1201-S1206 and S1214-S1219.
  • the AN network element obtains a port identifier and first indication information of the AN network element.
  • the AN network element may be configured with first indication information and a port identifier of the AN network element in the TSN network, and the AN network element obtains the first indication information and the AN network element's port identifier in the TSN network according to the configuration.
  • the UPF network element obtains the port identifier and the second indication information of the UPF network element.
  • the UPF network element may be configured with the second instruction information and the port identifier of the UPF network element in the TSN network, and the UPF network element obtains the second instruction information and the port identifier of the UPF network element in the TSN network according to the configuration.
  • the first instruction information is used to indicate that the AN network element is the sending end, and the second instruction information is used to indicate that the UPF network element is the receiving end; or the first instruction information is used to indicate the AN network element is the receiving end, and the second instruction information is used to Indicates that the UPF network element is the sending end. That is, one of the AN network element and the UPF network element is configured as a transmitting end and the other is configured as a receiving end.
  • the AN network element and / or the UPF network element obtains the first information.
  • the AN network element and / or the UPF network element may be configured with the first information, and the AN network element and / or the UPF network element obtain the first information according to the configuration.
  • the AN network element and / or the UPF network element obtains the bandwidth information of the data stream.
  • the AN network element and / or the UPF network element may be configured with bandwidth information of the data flow, and the AN network element and / or the UPF network element obtains the bandwidth information of the data flow according to the configuration.
  • the AN network element and / or the UPF network element obtains an IP address corresponding to the TSN pipe.
  • the AN network element and / or the UPF network element may also be configured with an IP address corresponding to the TSN pipe, and the AN network element and / or the UPF network element obtains the IP address corresponding to the TSN pipe according to the configuration.
  • the IP address corresponding to the TSN pipe is used to indicate the correspondence between the GTP-U pipe (one of the TSN pipes) and the IP address of the GTP-U tunnel.
  • the TSN pipe is allocated And the IP address of the corresponding GTP-U tunnel. If the TSN pipe is a Layer 2 pipe, you do not need to obtain the IP address corresponding to the TSN pipe.
  • the AN network element sends the port identifier of the AN network element and the first instruction information to the control device.
  • control device receives the port identifier and the first indication information of the AN network element from the AN network element.
  • the AN network element may send a first registration request message to the control device, and the first registration request message includes the port identifier of the AN network element and the first indication information.
  • the control device receives the first registration request message from the AN network element.
  • This step enables the AN network element to explicitly send the second information indicating the port identification of the AN network element to the control device.
  • the UPF network element sends the port identifier of the UPF network element and the second instruction information to the control device.
  • control device receives the port identifier and the second indication information of the UPF network element from the UPF network element.
  • the UPF network element may send a second registration request message to the control device, and the second registration request message includes the port identifier of the UPF network element and the second indication information. Accordingly, the control device receives the second registration request message from the UPF network element.
  • the first registration request message and / or the second registration request message may further include first information. Accordingly, the control device may receive the first information from the AN network element and / or the UPF network element.
  • the first registration request message and / or the second registration request message may further include bandwidth information of the data stream. Accordingly, the control device may receive the bandwidth information of the data stream from the AN network element and / or the UPF network element.
  • the first registration request message and / or the second registration request message may further include an IP address corresponding to the TSN pipe. Accordingly, the control device may receive the IP address corresponding to the TSN pipe from the AN network element and / or the UPF network element.
  • This step enables the UPF network element to explicitly send the second information indicating the port identification of the UPF network element to the control device.
  • the control device determines, according to the first instruction information and the second instruction information, the sending end and the receiving end of the data stream communication.
  • control device may determine that one of the AN network element and the UPF network element is a transmitting end and the other is a receiving end according to the first instruction information and the second instruction information.
  • control device may obtain the first information according to a configuration, a policy, or an arrangement.
  • the control device can save the correspondence between the data stream and the AN network element and the UPF network element.
  • S1206 The control device obtains bandwidth information of the data stream.
  • control device may receive the bandwidth information of the data stream from the AN network element and / or the UPF network element.
  • control device may obtain the bandwidth information of the data stream according to a configuration, a policy, or an orchestration.
  • S1207 The control device sends data stream information to the sending end.
  • the transmitting end receives data stream information from the control device.
  • the control device sends the bandwidth information of the data stream to the sending end, and accordingly, the sending end receives the bandwidth information of the data flow from the control device.
  • steps S1207-S1213, S1216, S1219, and S1223 in FIG. 12 are described using an AN network element as a sending end and a UPF network element as a receiving end as examples. The same applies when the UPF network element is used as the transmitting end and the AN network element is used as the receiving end.
  • the data stream information may include a port identifier of the sending end or a reliable delay transmission network identifier; wherein the reliable delay transmitting network identification may be associated with the port identification of the sending end.
  • Reliable delay transmission network identification can come from AN network element or UPF network element.
  • the control device sends data stream information and data stream bandwidth information to the AN network element, and the data stream information may include a port identifier of the AN network element or a reliable delay transmission network identifier. If the UPF network element is the sending end, the control device sends data flow information and data flow bandwidth information to the UPF network element.
  • the data flow information may include the port identification of the UPF network element or the reliable delay transmission network identification.
  • control device may further send the first information to the sending end. Accordingly, the transmitting end receives the first information from the control device.
  • the control device may send the first indication information to the AN network element.
  • the AN network element receives the first instruction information from the control device.
  • the control device may send the second instruction information to the UPF network element. Accordingly, the UPF network element receives the second instruction information from the control device.
  • S1208 The sending end obtains a port identifier of the sending end.
  • the sender receives the reliable delay transmission network identifier from the control device, and the sender may obtain the port identifier of the sender according to the reliable delay transmission network identifier.
  • the transmitting end receives the port identifier of the transmitting end from the control device.
  • S1209 The sending end sends an SRP request message to the receiving end through a port corresponding to the port identification of the sending end.
  • the SRP request message is used to trigger the creation of a data stream. This step enables the sending end to implicitly send the second information indicating the port identification of the sending end to the receiving end.
  • the method may include steps S1210-S1212:
  • the control device sends data stream information to the receiving end.
  • the receiving end receives data stream information from the control device.
  • the control device sends the bandwidth information of the data stream to the receiving end, and accordingly, the receiving end receives the bandwidth information of the data stream from the control device.
  • the data stream information may include a port identifier of the receiving end or a reliable delay transmission network identifier; wherein the reliable delay transmitting network identification may be associated with the port identification of the receiving end.
  • the control device sends data stream information and data flow bandwidth information to the AN network element.
  • the data stream information may include the port identifier of the AN network element or the reliable delay transmission network identifier; if the UPF network element is At the receiving end, the control device sends data stream information and data stream bandwidth information to the UPF network element, and the data stream information may include the port identifier of the UPF network element or the reliable delay transmission network identifier.
  • control device may further send the first information to the receiving end. Accordingly, the receiving end receives the first information from the control device.
  • the control device may send the first indication information to the AN network element.
  • the AN network element receives the first instruction information from the control device.
  • the control device may send the second instruction information to the UPF network element. Accordingly, the UPF network element receives the second instruction information from the control device.
  • steps S1209 and S1210 are not executed sequentially.
  • the receiving end obtains a port identifier of the receiving end.
  • the receiving end receives the reliable delay transmission network identifier from the control device, and the receiving end may obtain the receiving end port identifier according to the reliable delay transmission network identifier.
  • the receiving end receives the port identification of the receiving end from the control device.
  • the receiving end sends an SRP response message to the sending end through the port corresponding to the port identification of the receiving end.
  • the SRP response message is used to respond to the SRP request message from the sender.
  • the receiving end may obtain the SRP request message according to the data flow information or configuration information, and the data flow requested to be created is the one that it needs to receive, and sends an SRP response message to the sending end. This step enables the receiving end to implicitly send the second information indicating the port identification of the receiving end to the sending end.
  • step S1212 is after step S1209.
  • the sending end sends the first information and / or the source MAC address of the SRP response message to the control device.
  • the sender After the sender receives the SRP response message, it can send instructions to the control device to indicate that the sender has received the SRP response message, indicating that the data stream creation is complete.
  • the indication information may include the first information and / or the source MAC address of the SRP response message.
  • the control device sends data stream information and data stream bandwidth information to the CUC network element.
  • control device may further send the first information to the CUC network element.
  • the CUC network element requests the CNC network element to create a data stream.
  • the CUC network element may allocate the first information to the data stream.
  • the CUC network element may send the first information to the CNC network element to request creation of a data stream.
  • the CNC network element generates path information and scheduling strategy of the data flow, and sends the path information and scheduling strategy of data flow to the AN network element and the UPF network element.
  • the path information of the data flow may indicate a forwarding path of the data flow.
  • the scheduling policy may include, for example, a packet sending time slot of the transmitting end and / or a packet receiving time slot of the receiving end.
  • S1217 The CNC network element sends path information and scheduling policies of the data flow to the CUC network element.
  • steps S1215-S1217 please refer to the description in Chapter 43.1.3.3 of IEEE 802.1qcc, which will not be repeated here.
  • the CUC network element sends path information of the data flow to the control device.
  • the CUC network element may send the first information to the control device. Accordingly, the control device receives the first information from the CUC network element.
  • the CUC network element may send a scheduling policy to the control device.
  • the control device sends the first information and / or the bandwidth information to the sending end and / or the receiving end.
  • control device may send the first instruction information to the first device, and / or send the second instruction information to the second device.
  • control device may send a scheduling policy to the sending end and the receiving end.
  • This step S1219 may instruct the sending end and the receiving end to reserve buffer resources.
  • the method may further include steps S1220-S1223:
  • the control device saves TSN pipeline information.
  • the TSN pipeline information can be obtained according to the relevant information of the data flow.
  • the TSN pipeline information can include the first information, the equipment identification of the AN network element and / or the UPF network element, the port identification of the AN network element, the port identification of the UPF network element, At least one of the network identification, source IP address, and destination IP address of the GTP-U tunnel.
  • the device identification of the AN network element and / or the UPF network element may be obtained from the SMF network element, or may be obtained by the control device according to the configuration, policy, or orchestration.
  • the source IP address and / or destination IP address of the GTP-U tunnel can be obtained from the AN network element or UPF network element, or obtained by the control device according to the configuration, policy, or orchestration.
  • control device may save (AN1, UPF1, 012a.3322.00af), indicating that there is a TSN pipe between the AN1 network element and the UPF1 network element, and the flow identifier in the first information is 012a.3322.00af.
  • This information can be used as a basis for selecting a UPF network element when a subsequent SMF network element creates a data stream or session.
  • Or record (012a.3322.00af), indicating that the flow identifier in the first information is 012a.3322.00af. This information can be used to allocate bandwidth to users when creating subsequent data streams or sessions.
  • control device sends the reachability information between the sending end and the receiving end to the NRF network element.
  • the reachability information is used to indicate that the sending end and the receiving end are located in the same reliable delay transmission network.
  • control device may send TSN pipeline information to the NRF network element.
  • the control device can send (AN1, UPF1) to the NRF network element, indicating that the AN1 network element and the UPF1 network element are reachable in the TSN network and can support reliable delay transmission.
  • the control device may send (AN1, UPF1, 012a.3322.00af, 5ms, 1G) to the NRF network element, indicating that there is a 1G bandwidth TSN pipe between the AN1 network element and the UPF1 network element, and the flow identifier in the first message Is 012a.3322.00af, and the maximum transmission delay is 5ms; or, the control device can send ⁇ (AN1, p1), (UPF1, p2), 012a.3322.00af, 5ms, 1G ⁇ to the NRF network element, indicating that it is an AN1 network element There is a TSN pipe with a bandwidth of 1G between the port p1 and the port p2 of the UPF1 network element.
  • the flow identifier in the first message is 012
  • the NRF network element stores reachability information between the sending end and the receiving end.
  • the NRF network element may store TSN pipeline information.
  • the above information can be used as a basis for selecting a UPF network element when a user stream or session including a reliable delay is created for the user.
  • the control device sends TSN pipeline information to the AN network element and the / UPF network element.
  • the AN network element and / or the UPF network element After receiving the above information, the AN network element and / or the UPF network element save the above information, which is used as a basis for allocating the TSN pipeline when creating a session for the user that includes a reliable delay user stream.
  • the communication method includes steps S1301-S1319:
  • the control device obtains the first instruction information and the second instruction information according to the configuration, the policy, or the arrangement, and determines the sending end and the receiving end of the data stream communication according to the first instruction information and the second instruction information.
  • control device may obtain the first information according to a configuration, a policy, or an arrangement.
  • control device may obtain an IP address corresponding to the TSN pipeline according to a configuration, a policy, or an arrangement.
  • the control device can save the correspondence between the data stream and the AN network element and the UPF network element.
  • the control device obtains bandwidth information of the data stream according to a configuration, a policy, or an arrangement.
  • Steps S1303-S1319 can refer to the description of steps S1207-S1223 in FIG. 12, and will not be repeated here.
  • the communication method includes steps S1401-S1423:
  • the AN network element obtains a port identifier of the AN network element.
  • the AN network element may be configured with a port identifier of the AN network element, and the AN network element obtains the port identifier of the AN network element according to the configuration.
  • the AN network element may obtain bandwidth information of the data stream.
  • the AN network element may also be configured with bandwidth information of the data stream, and the AN network element obtains the bandwidth information of the data stream according to the configuration.
  • the UPF network element obtains the port identifier of the UPF network element.
  • the UPF network element can be configured with a port identifier of the UPF network element, and the UPF network element obtains the port identifier of the UPF network element according to the configuration.
  • the UPF network element may obtain bandwidth information of the data stream.
  • the UPF network element may also be configured with data stream bandwidth information, and the UPF network element obtains the data stream bandwidth information according to the configuration.
  • the AN network element sends the port identifier of the AN network element to the control device.
  • control device receives the port identification of the AN network element from the AN network element.
  • the AN network element may send bandwidth information of the data stream to the control device. Accordingly, the control device can receive the bandwidth information of the data stream from the AN network element.
  • the AN network element may send a first registration request message to the control device, and the first registration request message includes a port identifier of the AN network element.
  • the first registration request message may further include bandwidth information of the data stream.
  • the control device receives the first registration request message from the AN network element.
  • the UPF network element sends the port identifier of the UPF network element to the control device.
  • control device receives the port identification of the UPF network element from the UPF network element.
  • the UPF network element may send a second registration request message to the control device, and the second registration request message includes a port identifier of the UPF network element.
  • the second registration request message may further include bandwidth information of the data stream. Accordingly, the control device receives the second registration request message from the UPF network element.
  • the control device acquires the first instruction information and the second instruction information, and determines the sending end and the receiving end of the data stream communication according to the first instruction information and the second instruction information.
  • the first instruction information is used to indicate that the AN network element is the sending end, and the second instruction information is used to indicate that the UPF network element is the receiving end; or the first instruction information is used to indicate the AN network element is the receiving end, and the second instruction information is used to Indicates that the UPF network element is the sending end.
  • the first indication information and the second indication information may be one indication information, and the indication information indicates that one of the AN network element and the UPF network element is a transmitting end and the other is a receiving end.
  • control device may obtain the first instruction information and the second instruction information according to a configuration, a policy, or an arrangement.
  • control device may receive the first indication information and the second indication information from an SMF network element.
  • control device may receive the first instruction information and the second instruction information from the SMF network element.
  • the first instruction information is used to indicate that the AN network element is the sending end
  • the second instruction information is used to indicate the UPF network element is the receiving end.
  • the device may determine that the AN network element is the sending end according to the first instruction information, and may determine that the UPF network element is the receiving end according to the second instruction information.
  • control device may obtain the first information according to a configuration, a policy, or an arrangement.
  • the control device can save the correspondence between the data stream and the AN network element and the UPF network element.
  • the control device obtains bandwidth information of the data stream according to a configuration, a policy, or an arrangement.
  • Steps S1407-S1423 can refer to the description of steps S1207-S1223 in FIG. 12, and will not be repeated here.
  • the communication method includes steps S1501-S1522.
  • the control device receives the first instruction information and the second instruction information from the SMF network element, and determines the sending end and the receiving end of the data stream communication according to the first instruction information and the second instruction information.
  • the control device obtains bandwidth information of the data stream according to a configuration, a policy, or an arrangement.
  • the control device receives the device identifier of the sending end and the device identifier of the receiving end from the SMF network element.
  • the control device receives the topology information of the reliable delay transmission network from the CUC network element.
  • the topology information includes the correspondence between the device identification of the transmitting end and the port identification of the transmitting end, and the correspondence between the device identification of the receiving end and the port identification of the receiving end.
  • the topology information implicitly indicates that these devices or ports are reachable within the TSN network.
  • the control device obtains the port identifier of the sending end and the port identifier of the receiving end according to the device identifier of the sending end, the device identifier of the receiving end, and the topology information.
  • control device may obtain the first information according to a configuration, a policy, or an arrangement.
  • the control device can save the correspondence between the data stream and the AN network element and the UPF network element.
  • Steps S1506-S1522 can refer to the description of steps S1207-S1223 in FIG. 12, and will not be repeated here.
  • the communication method includes steps S1601-S1616.
  • the control device determines, according to the first instruction information and the second instruction information, the sending end and the receiving end of the data stream communication, and obtains the bandwidth information of the data stream.
  • the control device can assign a TSN pipe identifier to the TSN pipe.
  • the role of the TSN pipe identifier is to make the network element on the control plane of the core network not need to pay attention to and save the first information, but the TSN network itself manages and maintains the first information.
  • the core network control plane element interacts with the AN network element and the UPF network element, it directly uses the TSN pipe identifier to indicate the corresponding TSN pipe.
  • This step can refer to steps S1201-S1206 in FIG. 12, or steps S1301-S1302 in FIG. 13, or steps S1401-S1406 in FIG. 14, or steps S1501-S1502 in FIG. 15, which are not repeated here. repeat.
  • the control device sends data stream information to the sending end.
  • control device may send the TSN pipe identifier to the sending end.
  • step S1207 This step is referred to step S1207 in FIG. 12 and will not be repeated here.
  • the sending end obtains a port identifier of the sending end.
  • step S1208 This step is referred to step S1208 in FIG. 12 and is not repeated here.
  • S1604 The sending end sends the port identification of the sending end to the CUC network element.
  • the port identifier of the sender is used to register the sender with the CUC network element to create a data stream.
  • the control device sends data stream information and data stream bandwidth information to the receiving end.
  • control device may send a TSN pipe identifier to the receiving end.
  • step S1210 This step is referred to step S1210 in FIG. 12 and is not repeated here.
  • the receiving end obtains a port identifier of the receiving end.
  • step S1211 in FIG. 12 and is not repeated here.
  • the receiving end sends the port identification of the receiving end to the CUC network element.
  • the port identifier of the receiving end is used to register the receiving end with the CUC network element to request creation of a data stream.
  • Steps S1608-S1610 are referred to S1215-S1217 in FIG. 12, and will not be repeated here.
  • the CUC network element sends the first information to the sending end and / or the receiving end.
  • the sending end and / or the receiving end send the first information to the control device.
  • This step is optional.
  • the control device saves TSN pipeline information.
  • control device Compared with step S1220 in FIG. 12, the control device also saves the TSN pipeline identifier described in step S1601. For other contents, refer to step S1220 in FIG. 12, which is not repeated here.
  • Steps S1614-S1616 can refer to the descriptions of steps S1221-S1223 in FIG. 12, and will not be repeated here.
  • the TSN pipeline created is not bound to the IP address of the GTP-U tunnel.
  • the NRF network element stores the reachability information between the AN network element and the UPF network element, and the control device stores the TSN pipeline information.
  • the AN network element and the UPF network element store the correspondence between the TSN pipe and the port identifier of the sender and the port identifier of the receiver.
  • the above communication method may include:
  • S1701, AN1 and AN1 are configured with a device identifier AN1 and / or a port identifier AN1_p1 and AN1_p2.
  • the device identifier UPF1 and / or the port identifier UPF1_p3 and UPF1_p4 are configured on the UPF1 network element.
  • the AN1 network element sends the device identification AN1 and / or the port identification AN1_p1 and AN1_p2 to the control device.
  • the UPF1 network element sends the device identification UPF1 and / or the port identification UPF1_p3 and UPF1_p4 to the control device.
  • the control device sends the device identification AN1 and / or port identification AN1_p1, AN1_p2 of the AN1 network element, and the device identification UPF1 and / or port identification UPF1_p3, UPF1_p4 of the AN1 network element to the CUC network element.
  • This step is used to request the CUC network elements for reliable delay transmission network topology information, and to obtain the reachability information between the AN network element and the UPF network element, such as the reachability information between the ports (AN1_p1, UPF1_p3), (AN1_p2 , UPF1_p4) and so on.
  • the reachability information is used to indicate that the AN network element and the UPF network element are located in the same reliable delay transmission network.
  • the control device can also determine that the AN1 network element and the UPF1 network element support reliable delay transmission.
  • control device can also obtain the above information according to the configuration.
  • control device obtains the foregoing information according to the configuration, the foregoing steps S1701-S1704 may not be performed.
  • the control device sends the reachable information between the AN1 network element and the UPF1 network element to the NRF network element.
  • reachability information (AN1_p1, UPF1_p3), (AN1_p2, UPF1_p4), etc. between ports.
  • S1707 and NRF network elements store reachability information between AN1 network elements and UPF1 network elements.
  • the SMF network element determines the UPF1 network element and initiates a session creation request to the UPF1 network element.
  • the UPF1 network element executes process S1204 in FIG. 12 and sends to the control device the first instruction information indicating that the AN1 network element is the sending end and the second instruction information indicating that the UPF1 network element is the receiving end.
  • the first instruction information and the second instruction information may also be one instruction information. That is, the instruction information is used to indicate that the AN1 network element is a transmitting end and the UPF1 network element is a receiving end. This application does not limit the specific form of the above instruction information.
  • the control device determines the sending end and the receiving end of the data stream communication according to the first instruction information and the second instruction information, and obtains bandwidth information of the data stream.
  • the control device may determine the port AN1_p1 of the AN1 network element as the sending end and the port UPF1_p2 of the UPF1 network element as the receiving end according to the configuration, the policy or the arrangement, or the first instruction information and the second instruction information described in step S1707.
  • the bandwidth information of the data flow between the AN1 network element and the UPF1 network element can be obtained according to the configuration, policy, or orchestration.
  • S1709 The control device obtains first information.
  • the first information includes a flow identifier 012a.3322.00af.
  • the control device instructs the CUC network element to create a data stream.
  • the path information of the data flow may include (012a.3322.00af, AN1_p1, AN1_p1, 1G), where 012a.3322.00af is the first information, AN1_p1 is the port identification of the sending end, UPF1_p2 is the port identification of the receiving end, and 1G is data Bandwidth information of the stream.
  • the CUC network element sends path information of the data flow to the control device.
  • the path information of the sent data flow may include (012a.3322.00af, AN1_p1, VLAN_100, CoS_3, UPF1_p2, VLAN_200, CoS_3, 1G), where 012a.3322.00af is the first information, AN1_p1 is the port identifier of the sending end, and VLAN_100 indicates The sender VLAN is 100, CoS_3 means the sender CoS is 3, UPF1_p2 is the port identifier of the receiver, VLAN_200 means the receiver VLAN is 200, CoS_3 means the receiver CoS is 3, and 1G is the bandwidth information of the data stream.
  • control device saves TSN pipeline information.
  • the control device can obtain the TSN pipeline information according to the path information of the data flow.
  • the control device can obtain the TSN pipeline information related to the UPF network element according to the path information of the data flow.
  • the TSN pipeline information related to the UPF network element may include: (012a.3322.00af, AN1_p1, UPF1_p2, VLAN_200, CoS_3, 1G), where 012a.3322.00af is the flow identifier included in the first information; AN1_p1 is the Port identification, UPF1_p2 is the port identification of the receiving end; VLAN_200 indicates the receiving end VLAN is 200, CoS_3 indicates the receiving end CoS is 3; 1G is the bandwidth information of the data stream.
  • the control device can obtain the TSN pipeline information related to the AN network element according to the path information of the data flow.
  • the TSN pipeline information related to the AN network element includes: (012a.3322.00af, AN1_p1, VLAN_100, CoS_3, UPF1_p2, 1G), where 012a.3322.00af is the flow identifier included in the first information; AN1_p1 is the port of the sending end ID; VLAN_100 means the sender VLAN is 100; CoS_3 means the sender CoS is 3; UPF1_p2 is the port identifier of the receiver; 1G is the bandwidth information of the data stream.
  • the control device sends TSN pipeline information related to the UPF network element to the UPF network element.
  • the control device sends TSN pipeline information related to the AN network element to the AN network element.
  • the AN and UPF can then create sessions for users based on the TSN pipeline information.
  • the above communication method may include:
  • the AN1 network element is configured with a device identifier, first indication information, port identifier, and first information.
  • the configuration information on AN1 includes the device identification, the first indication information, the port identification, and the first information.
  • the corresponding IP address can be configured on the AN1 network element.
  • AN1 network elements are configured with: AN1, (talker, AN1_p1, 012a.3322.00af, 10.10.10.2), (listener, AN1_p1, 012a.3322.00ae, 10.10.10.2).
  • AN1 is the device identification
  • AN1_p1 is the port identification
  • talker and listener are the first indication information
  • 012a.3322.00af and 012a.3322.00ae are the first information
  • 10.10.10.2 is the IP address corresponding to the AN1 network element.
  • the UPF1 network element is configured with a device identifier, second indication information, port identifier, and first information.
  • the configuration information on UPF1 includes the device identification, the first indication information, the port identification, and the first information.
  • a corresponding IP address can be configured on the UPF1 network element.
  • UPF1 For example, configure the UPF1 network element: UPF1, (talker, UPF1_p3, 012a.3322.00ae, 10.10.10.3), (listener, UPF1_p3, 012a.3322.00af, 10.10.10.3).
  • UPF1 is the device identification
  • UPF1_p3 is the port identification
  • talker and listener are the second indication information
  • 012a.3322.00af and 012a.3322.00ae are the first information
  • 10.10.10.3 is the IP address corresponding to the UPF1 network element.
  • (talker, UPF1_p3, 012a.3322.00ae, 10.10.10.3) indicates that when UPF1 is used as the sender, the data stream is sent through the port corresponding to UPF1_p3.
  • the data stream is identified by 012a.3322.00ae, and the IP of the UPF1 network element sends the data stream IP.
  • the address is 10.10.10.3. (listener, UPF1_p3, 012a.3322.00af, 10.10.10.3) indicates that when the UPF1 network element is the receiving end, it receives the data stream through the port corresponding to UPF1_p3.
  • the data stream is identified by 012a.3322.00af, and the UPF1 network element receives the data stream.
  • the IP address is 10.10.10.3.
  • the AN1 network element sends configuration information of the AN1 network element to the control device.
  • the AN1 network element may also send bandwidth information and TSN network information of the data stream to the control device, such as VLAN and CoS.
  • the above information may be carried in the first registration information.
  • the UPF1 network element sends the configuration information of the UPF1 network element to the control device.
  • the UPF1 network element may send bandwidth information of the data flow and TSN network information, such as VLAN, CoS, etc., to the control device.
  • TSN network information such as VLAN, CoS, etc.
  • the above information may be carried in the second registration information.
  • steps S1801-S1804 are optional steps.
  • the control device can obtain the above information according to the configuration, policy, or orchestration.
  • the control device determines the sending end and the receiving end of the data stream communication according to the first instruction information and the second instruction information, and obtains bandwidth information of the data stream.
  • the control device can obtain the sending end or the receiving end according to the registration information from the AN1 network element and the UPF1 network element.
  • the control device may obtain the first instruction information and the second instruction information according to a configuration, a policy, or an arrangement, and then obtain a sending end or a receiving end.
  • the configuration, policy, or orchestration may include: the first information is 012a.3322.00af, the corresponding sending end is the port identified by AN1_p1, and the corresponding receiving end is the port identified by UPF1_p3.
  • the control device can obtain the bandwidth information of the data stream according to the registration information from the AN1 network element and the UPF1 network element. Alternatively, the control device can obtain the bandwidth information of the data stream according to the configuration, policy, or orchestration. If the control device obtains the bandwidth information of the data flow (for example, 1G) according to the configuration, policy, or orchestration, the control device requests the AN network element and the UPF network element to reserve bandwidth for the corresponding data flow, respectively.
  • the bandwidth information of the data stream for example, 1G
  • S1806 The control device instructs the CUC network element to create a data stream.
  • the path information of the data flow may include (AN1_p1, UPF1_p3, 012a.3322.00a, 1G), where AN1_p1 is the port identification of the sending end, UPF1_p3 is the port identification of the receiving end, 012a.3322.00af is the first information, and 1G is the data Bandwidth information of the stream.
  • the control device may include the TSN network information in the request message sent to the CUC network element.
  • relevant information may also be generated by a CUC network element or a CNC network element.
  • the CUC network element sends path information of the data flow to the control device.
  • the path information of the sent data flow may include (012a.3322.00af, AN1_p1, VLAN_100, CoS_3, UPF1_p2, VLAN_200, CoS_3, 1G), where 012a.3322.00af is the first information, AN1_p1 is the port identifier of the sending end, and VLAN_100 indicates The sender VLAN is 100, CoS_3 means the sender CoS is 3, UPF1_p2 is the port identifier of the receiver, VLAN_200 means the receiver VLAN is 200, CoS_3 means the receiver CoS is 3, and 1G is the bandwidth information of the data stream.
  • S1808 The control device saves TSN pipeline information.
  • TSN pipeline information can be obtained based on the above path information.
  • the TSN pipeline information may include (012a.3322.00af, AN1_p1, VLAN_100, CoS_3, UPF1_p2, VLAN_200, CoS_3, 1G), where 012a.3322.00af is the first information, AN1_p1 is the port identifier of the sender, and VLAN_100 indicates the sender
  • the VLAN is 100
  • CoS_3 indicates that the sending end CoS is 3
  • UPF1_p2 is the receiving port ID
  • VLAN_200 indicates the receiving end VLAN is 200
  • CoS_3 indicates the receiving end CoS is 3
  • 1G is the bandwidth information of the data stream.
  • the control device sends the reachable information between the AN1 network element and the UPF1 network element and / or the TSN pipeline information to the NRF network element.
  • the reachability information between AN1 and UPF1 may include (AN1_p1, UPF1_p3), where AN1_p1 is the port identifier of the sender and UPF1_p2 is the port identifier of the receiver.
  • the NRF network element stores reachability information and / or TSN pipeline information between the AN1 network element and the UPF1 network element.
  • the control device sends all or part of the TSN pipeline information to the AN1 network element and / or the UPF1 network element.
  • the TSN pipeline information sent may include (012a.3322.00af, AN1_p1, VLAN_100, CoS_3, 10.10.10.2, UPF1_p3, VLAN_200, CoS_3, 10.10.10.3, 1G), where 012a.3322.00af is the first information and AN1_p1 is The port ID of the sender, VLAN_100 means the sender VLAN is 100, CoS_3 means the sender CoS is 3, 10.10.10.2 is the sender's IP address, UPF1_p2 is the receiver's port ID, VLAN_200 means the receiver's VLAN is 200, and CoS_3 means the receiver's CoS Is 3, 10.10.10.3 is the IP address of the receiving end, and 1G is the bandwidth information of the data stream.
  • An embodiment of the present application further provides a communication apparatus, which can be used to execute a function of a control device in the foregoing method.
  • the communication device may be divided into functional modules according to the foregoing method example.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of the modules in this application is schematic, and is only a logical function division. In actual implementation, there may be another division manner.
  • FIG. 19 shows a possible structural diagram of a communication device involved in the foregoing embodiment.
  • the communication device 19 may include: a determining unit 1911, an obtaining unit 1912, and a sending Unit 1913, receiving unit 1914.
  • the above units are used to support the communication device to execute the related method of controlling the device in any of the drawings in FIGS. 11A-18.
  • the communication device provided in this application is used to execute the corresponding method provided above. Therefore, for its corresponding features and achievable beneficial effects, reference may be made to the beneficial effects in the corresponding methods provided above. To repeat. It should be noted that the above units are optional.
  • the communication device 19 may include a determining unit 1911, an obtaining unit 1912, and a sending unit 1913.
  • the communication device 19 may further include a receiving unit 1914.
  • the determining unit 1911 is configured to support the communication device 19 to execute the process S1101 in FIG. 11A, or the process S1205 in FIG. 12, or the process S1301 in FIG. 13, or the process S1405 in FIG. 14, or the process in FIG. Process S1501, or process S1601 in FIG. 16, or process S1708 in FIG. 17, or process S1805 in FIG. 18.
  • the obtaining unit 1912 is configured to support the communication device 19 to execute the process S1102 in FIG. 11A or the process S1206 in FIG. 12 or the processes S1301 and S1302 in FIG. 13 or the processes S1405 and S1406 in FIG. 14 or the process in FIG. 15.
  • the sending unit 1913 is used to support the communication device 19 to execute the process S1103 in FIG. 11A, or the processes S1207, S1210, S1214, S1219, S1221, S1223 in FIG. 12, or the processes S1303, S1306, S1310, S1315, and S1317 in FIG. 13 , S1319, or processes S1407, S1410, S1414, S1419, S1421, S1423 in FIG. 14, or processes S1506, S1509, S1513, S1518, S1520, S1522, or processes S1602, S1614, S1616 in FIG.
  • the receiving unit 1914 is used to support the communication device 19 to execute the processes S1203, S1204, S1213 in FIG. 12, S1218, or processes S1309, S1314 in FIG. 13, or processes S1404, S1413, S1418 in FIG. 14, or processes S1501, S1503, S1504, S1512, S1517 in FIG. 15, or process S1612 in FIG. 16, or FIG. Processes S1703, S1704, and S1711 in 17 or processes S1803, S1804, and S1807 in FIG. 18. Wherein, all relevant content of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module, which will not be repeated here.
  • the determining unit 1911 is configured to determine the sending end and the receiving end of the data stream communication according to the first instruction information and the second instruction information, where the first instruction information is used to indicate that the first device is a transmitting device. End, the second instruction information is used to indicate that the second device is the receiving end, or the first instruction information is used to indicate that the first device is the receiving end, and the second instruction information is used to indicate that the second device is the sending end, and the data stream includes an identifier First information of the data stream. The first information is used to instruct the sending end to send data through the data stream, and is also used to instruct the receiving end to receive data through the data stream.
  • the obtaining unit 1912 is configured to obtain bandwidth information of a data stream.
  • the sending unit 1913 is configured to send data stream information and bandwidth information obtained by the obtaining unit 1912, where the data stream information is used to indicate at least one of a port identifier of the sending end determined by the determining unit 1911 and a port identifier of the receiving end determined by the determining unit. Item, the port identifier of the sender, the port identifier of the receiver, and the bandwidth information are used to create the data stream.
  • the communication apparatus further includes a receiving unit 1914, configured to receive the first instruction information from the first device, and / or receive the instruction information from the second device.
  • the communication device further includes a receiving unit 1914, configured to receive the first indication information and the second indication information from the session management function network element.
  • the sending unit 1913 is further configured to send the first instruction information to the first device, and / or send the second instruction information to the second device.
  • the communication device further includes a receiving unit 1914, configured to receive the first information from the transmitting end and / or the receiving end.
  • the sending unit 1913 is further configured to send the first information to the sending end and / or the receiving end.
  • the communication device further includes a receiving unit 1914, configured to receive the port identifier of the transmitting end from the transmitting end, and receive the port identifier of the receiving end from the receiving end.
  • the data flow information includes a port identifier of the sending end
  • the sending unit 1913 is specifically configured to send the data flow information to the sending end, where the data flow information is used to instruct the sending end to pass the port identification of the sending end
  • the corresponding port sends a stream reservation protocol SRP request message to the receiver.
  • the SRP request message is used to trigger the creation of a data stream.
  • the data stream information includes a reliable delay transmission network identifier, wherein the reliable delay transmission network identifier is associated with the port identifier of the sending end and the port identifier of the receiving end.
  • the communication device further includes a receiving unit 1914, configured to receive bandwidth information from a transmitting end and / or a receiving end.
  • the sending unit 1913 is specifically configured to send bandwidth information to a sending end and / or a receiving end.
  • the sending unit 1913 is further configured to send reachability information between the sending end and the receiving end to the network function storage function network element, and the reachability information is used to indicate that the sending end and the receiving end are in the same reliable time.
  • Extended transmission network is further configured to send reachability information between the sending end and the receiving end to the network function storage function network element, and the reachability information is used to indicate that the sending end and the receiving end are in the same reliable time.
  • FIG. 20 is a schematic diagram showing another possible structure of the communication device involved in the foregoing embodiment.
  • the communication device 20 includes a processing module 2022 and a communication module 2023.
  • the communication device 20 may further include a storage module 2021.
  • the above modules are used to support the communication device to execute the related method of controlling the device in any of the drawings in FIGS. 11A-18.
  • the communication device provided in this application is used to execute the corresponding method provided above. Therefore, for its corresponding features and achievable beneficial effects, reference may be made to the beneficial effects in the corresponding methods provided above. To repeat.
  • the processing module 2022 is configured to control and manage the actions of the communication device 20 or execute corresponding processing functions, for example, the functions of the determination unit 1911 and the acquisition unit 1912.
  • the communication module 2023 is configured to support the communication device 20 to perform the functions of the receiving unit 1914 and the transmitting unit 1913 described above.
  • the storage module 2021 is configured to store program code and / or data of the communication device.
  • the processing module 2022 may be a processor or a controller.
  • the processing module 2022 may be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), or an application-specific integrated circuit. integrated circuit (ASIC), field programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logical blocks, modules, and circuits described in connection with the disclosure of this application.
  • the processor may also be a combination that realizes computing functions, for example, a combination including one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the communication module 2023 may be a network interface, a communication interface, or the like.
  • the storage module 2021 may be a memory.
  • the processing module 2022 may be the processor 501 in FIG. 5
  • the communication module 2023 may be the communication interface 504 in FIG. 5
  • the storage module 2021 may be the memory 503 in FIG. 5.
  • one or more programs are stored in the memory, and the one or more programs include instructions that, when executed by the communication device, cause the communication device to execute the related method of controlling the device in any of the drawings of FIGS. 11A-18.
  • An embodiment of the present application further provides a communication device, including a processor and a memory, where the memory is used to store a program, and the processor calls a program stored in the memory to cause the communication device to execute any of the drawings in FIGS. 11A-18 Related methods of controlling equipment.
  • An embodiment of the present application further provides a computer storage medium storing one or more programs, where a computer program is stored, and when the computer program is executed by a processor, the communication device executes the control in any of the drawings in FIGS. 11A-18 Equipment related methods.
  • the embodiment of the present application further provides a computer program product containing instructions, and when the computer program product is run on a communication device, the communication device is caused to execute a related method of controlling a device in any of the drawings in FIGS. 11A-18.
  • An embodiment of the present application provides a chip system.
  • the chip system includes a processor, and is configured to support a communication device to execute a related method of controlling a device in any of the drawings in FIGS. 11A-18.
  • the control device determines the sending end and the receiving end of the data stream communication according to the first instruction information and the second instruction information, where the first instruction information is used to indicate that the first device is a sending end, and the second instruction information is used to indicate the second The device is a receiving end, or the first instruction information is used to indicate that the first device is a receiving end, and the second instruction information is used to indicate that the second device is a sending end.
  • the data stream includes first information identifying the data stream.
  • the control device obtains the bandwidth information of the data flow; the control device sends the data flow information and sends the bandwidth information, wherein the data flow information is used to indicate At least one of the port identifier of the sender and the port identifier of the receiver, the port identifier of the sender, the port identifier of the receiver, and the bandwidth information are used to create a data stream.
  • the chip system further includes a memory, and the memory is used to store program instructions and data necessary for the terminal device.
  • the chip system may include a chip, an integrated circuit, or a chip and other discrete devices, which are not specifically limited in the embodiments of the present application.
  • the communication device, computer storage medium, computer program product, or chip system provided in this application is used to execute the corresponding methods provided above. Therefore, for the beneficial effects that can be achieved, reference may be made to the corresponding corresponding methods provided above. The beneficial effects in the method are not repeated here.
  • the communication device may be a control device or a component (a chip or a circuit) that can be used to control the device.
  • An embodiment of the present application further provides a communication apparatus, which may be used to perform functions of an AN network element, a first device, or a second device in the foregoing method.
  • the communication device may be divided into functional modules according to the foregoing method example.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of the modules in this application is schematic, and is only a logical function division. In actual implementation, there may be another division manner.
  • FIG. 21 shows a possible structural diagram of a communication device involved in the foregoing embodiment.
  • the communication device 21 may include: an obtaining unit 2111, a sending unit 2112, and a receiving unit. Unit 2113.
  • the above units are used to support the communication device to execute the related method of the AN network element in any of the drawings in FIGS. 11A-18.
  • the communication device provided in this application is used to execute the corresponding method provided above. Therefore, for its corresponding features and achievable beneficial effects, reference may be made to the beneficial effects in the corresponding methods provided above. To repeat. It should be noted that the above units are optional.
  • the communication device 21 may include an obtaining unit 2111 and a sending unit 2112.
  • the communication device 21 may further include a receiving unit 2113.
  • the obtaining unit 2111 is configured to support the communication device 21 to execute the process S1104 in FIG. 11B, or the processes S1201, S1208 in FIG. 12, or the process S1304 in FIG. 13, or the processes S1401, S1408 in FIG. 14, or Process S1507 in FIG. 15 or process S1603 in FIG. 16 or process S1701 in FIG. 17 or process S1801 in FIG. 18; the sending unit 2112 is used to support the communication device 21 to execute process S1105 in FIG. 11B or Processes S1203, S1209 in FIG. 12, or processes S1305, S1309 in FIG. 13, or processes S1403, S1409, S1413 in FIG. 14, or processes S1508, S1512 in FIG. 15, or processes S1604, S1612 in FIG.
  • the receiving unit 2113 is used to support the communication device 21 to execute the processes S1207, S1212, S1216, S1219, S1223 in FIG. 12, or the processes S1303, S1308 in FIG. 13 , S1312, S1315, S1319, or process S1407, S1412, S1416, S1419, S1423 in Figure 14, or process S1506, S1511, S1515, S1518, S1522 in Figure 15, or processes S1602, S1609, S1611 in Figure 16 , S1616, or process S1714 in FIG. 17, or Cheng S1811.
  • all relevant content of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module, which will not be repeated here.
  • the obtaining unit 2111 is configured to obtain a port identifier of the first device, where the first device is a sending end or a receiving end that communicates through a data stream, and the data stream includes first information that identifies the data stream, The first information is used to instruct the sending end to send data through the data stream, and is also used to instruct the receiving end to receive data through the data stream; the sending unit 2112 is used to send second information indicating the port identifier of the first device acquired by the obtaining unit 2111, The port identifier of the first device is used to create a data stream.
  • the communication device 21 may further include a receiving unit 2113.
  • the receiving unit 2113 is configured to receive a reliable delay transmission network identifier from the control device.
  • the obtaining unit 2111 is specifically configured to receive the reliable time according to the reliable time received by the receiving unit 2113.
  • the extended transmission network identifier acquires the port identifier of the first device.
  • the communication device 21 may further include a receiving unit 2113.
  • the receiving unit 2113 is configured to receive a port identifier of the first device from the control device.
  • the sending unit 2112 is specifically configured to send the port identifier of the first device to the control device.
  • the sending unit 2112 is further configured to send a stream reservation protocol SRP request message to the second device through a port corresponding to the port identifier of the first device, where the SRP request message is used to trigger a data flow.
  • the first device is the sending end and the second device is the receiving end, or send an SRP response message to the second device through the port corresponding to the port identifier of the first device, where the SRP response message is used for The SRP request message responds.
  • the SRP request message is used to trigger the creation of the data stream.
  • the first device is the receiving end and the second device is the sending end.
  • the communication device 21 may further include a receiving unit 2113.
  • the receiving unit 2113 is configured to receive first instruction information from the control device, and the first instruction information is used to indicate that the first device is a sending end or a receiving end. .
  • the sending unit 2112 is further configured to send the first instruction information to the control device, where the first instruction information is used to indicate that the first device is a sending end or a receiving end.
  • the communication device 21 may further include a receiving unit 2113.
  • the receiving unit 2113 is configured to receive bandwidth information of a data stream from a control device.
  • the sending unit 2112 is further configured to send bandwidth information of the data stream to the control device.
  • the communication device 21 may further include a receiving unit 2113.
  • the receiving unit 2113 is configured to receive the first information from the control device.
  • the sending unit 2112 is further configured to send the first information to the control device.
  • FIG. 22 is another schematic structural diagram of a communication device involved in the foregoing embodiment.
  • the communication device 22 includes a processing module 2222 and a communication module 2223.
  • the communication device 22 may further include a storage module 2221.
  • the above modules are used to support the communication device to execute the related method of the AN network element in any of the drawings in FIGS. 11A-18.
  • the communication device provided in this application is used to execute the corresponding method provided above. Therefore, for its corresponding features and achievable beneficial effects, reference may be made to the beneficial effects in the corresponding methods provided above. To repeat.
  • the processing module 2222 is configured to control and manage the actions of the communication device 22 or execute a corresponding processing function, for example, to execute a function of the obtaining unit 2111.
  • the communication module 2223 is configured to support the communication device 22 to perform the functions of the receiving unit 2113 and the transmitting unit 2112 described above.
  • the storage module 2221 is configured to store program code and / or data of the communication device.
  • the processing module 2222 may be a processor or a controller, for example, it may be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and an application-specific integrated circuit (application-specific integrated circuit (ASIC), field programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logical blocks, modules, and circuits described in connection with the disclosure of this application.
  • the processor may also be a combination that realizes computing functions, for example, a combination including one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the communication module 2223 may be a transceiver, a transceiver circuit, Bluetooth, a network interface, or a communication interface.
  • the storage module 2221 may be a memory.
  • the processing module 2222 may be the processor 431 in the BBU 401 in FIG. 4, the communication module 2223 may be the RF circuit 434 in the RRU 402 in FIG. 4, and the storage module 2221 may be the BBU in FIG. 4.
  • one or more programs are stored in the memory, and the one or more programs include instructions that, when executed by the communication device, cause the communication device to execute the related method of the AN network element in any of the drawings in FIGS. 11A-18.
  • An embodiment of the present application further provides a communication device, including a processor and a memory, where the memory is used to store a program, and the processor calls a program stored in the memory to cause the communication device to execute any of the drawings in FIGS. 11A-18 Related methods of AN network elements.
  • An embodiment of the present application further provides a computer storage medium storing one or more programs, where a computer program is stored, and when the computer program is executed by a processor, the communication device executes the AN in any of the drawings in FIGS. 11A-18 Related methods of network elements.
  • An embodiment of the present application further provides a computer program product including instructions.
  • the computer program product is run on a communication device, the communication device is caused to execute a related method of an AN network element in any of the drawings in FIGS. 11A-18.
  • An embodiment of the present application provides a chip system.
  • the chip system includes a processor, and is configured to support a communication device to execute a related method of an AN network element in any of the drawings in FIGS. 11A-18.
  • a first device obtains a port identifier of the first device, wherein the first device is a sending end or a receiving end that communicates through a data stream, and the data stream includes first information that identifies the data stream, the The first information is used to instruct the sending end to send data through the data stream, and is also used to instruct the receiving end to receive the data through the data stream; the first device sends a port indicating the first device The second information that is identified, and the port identifier of the first device is used to create the data stream.
  • the chip system further includes a memory, which is used to store program instructions and data necessary for the terminal device.
  • the chip system may include a chip, an integrated circuit, or a chip and other discrete devices, which are not specifically limited in the embodiments of the present application.
  • the communication device, computer storage medium, computer program product, or chip system provided in this application is used to execute the corresponding methods provided above. Therefore, for the beneficial effects that can be achieved, reference may be made to the corresponding corresponding methods provided above. The beneficial effects in the method are not repeated here.
  • the foregoing communication device may be an AN network element, or a component (a chip or a circuit, etc.) applicable to the AN network element.
  • An embodiment of the present application further provides a communication apparatus, which may be used to perform functions of a UPF network element, a first device, or a second device in the foregoing method.
  • the communication device may be divided into functional modules according to the foregoing method example.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of the modules in this application is schematic, and is only a logical function division. In actual implementation, there may be another division manner.
  • FIG. 23 shows a possible structural diagram of a communication device involved in the foregoing embodiment.
  • the communication device 23 may include: an obtaining unit 2311, a sending unit 2312, and a receiving unit. Unit 2313.
  • the above units are used to support the communication device to execute the related method of the UPF network element in any of the drawings in FIGS. 11A-18.
  • the communication device provided in this application is used to execute the corresponding method provided above. Therefore, for its corresponding features and achievable beneficial effects, reference may be made to the beneficial effects in the corresponding methods provided above. To repeat. It should be noted that the above units are optional.
  • the communication device 23 may include an obtaining unit 2311, a sending unit 2312, and optionally, the communication device 23 may further include a receiving unit 2313.
  • the obtaining unit 2311 is configured to support the communication device 23 to execute the process S1104 in FIG. 11B or the processes S1202 and S1211 in FIG. 12 or the process S1307 in FIG. 13 or the processes S1402 and S1411 in FIG. 14 or The process S1510 in FIG. 15 or the process S1606 in FIG. 16 or the process S1702 in FIG. 17 or the process S1802 in FIG. 18; the sending unit 2312 is configured to support the communication device 23 to execute the process S1105 in FIG. 11B, or FIG.
  • the obtaining unit 2311 is configured to obtain a port identifier of the first device, where the first device is a sending end or a receiving end that communicates through a data stream, and the data stream includes first information that identifies the data stream, The first information is used to instruct the sending end to send data through the data stream, and is also used to instruct the receiving end to receive data through the data stream; the sending unit 2312 is used to send second information indicating the port identifier of the first device acquired by the obtaining unit 2311 The port identifier of the first device is used to create a data flow.
  • the communication device 23 may further include a receiving unit 2313.
  • the receiving unit 2313 is configured to receive a reliable delay transmission network identifier from the control device.
  • the acquiring unit 2311 is specifically configured to receive the reliable time according to the reliable time received by the receiving unit 2313.
  • the extended transmission network identifier acquires the port identifier of the first device.
  • the communication device 23 may further include a receiving unit 2313.
  • the receiving unit 2313 is configured to receive a port identifier of the first device from the control device.
  • the sending unit 2312 is specifically configured to send the port identifier of the first device to the control device.
  • the sending unit 2312 is further configured to send a stream reservation protocol SRP request message to the second device through a port corresponding to the port identifier of the first device, where the SRP request message is used to trigger the creation of a data flow.
  • the first device is a transmitting end
  • the second device is a receiving end
  • an SRP response message is sent to the second device through a port corresponding to the port identifier of the first device, where the SRP response message is used for the SRP from the second device
  • the request message responds.
  • the SRP request message is used to trigger the creation of the data stream.
  • the first device is the receiving end and the second device is the sending end.
  • the communication device 23 may further include a receiving unit 2313.
  • the receiving unit 2313 is configured to receive first instruction information from the control device, and the first instruction information is used to indicate that the first device is a transmitting end or a receiving end. .
  • the sending unit 2312 is further configured to send first instruction information to the control device, where the first instruction information is used to indicate that the first device is a sending end or a receiving end.
  • the communication device 23 may further include a receiving unit 2313.
  • the receiving unit 2313 is configured to receive bandwidth information of a data stream from a control device.
  • the sending unit 2312 is further configured to send bandwidth information of the data stream to the control device.
  • the communication device 23 may further include a receiving unit 2313, and the receiving unit 2313 is configured to receive the first information from the control device.
  • the sending unit 2312 is further configured to send the first information to the control device.
  • FIG. 24 is another schematic structural diagram of a communication device involved in the foregoing embodiment.
  • the communication device 24 includes a processing module 2422 and a communication module 2423.
  • the communication device 24 may further include a storage module 2421.
  • the above modules are used to support the communication device to execute the related method of the UPF network element in any of the drawings in FIGS. 11A-18.
  • the communication device provided in this application is used to execute the corresponding method provided above. Therefore, for its corresponding features and achievable beneficial effects, reference may be made to the beneficial effects in the corresponding methods provided above. To repeat.
  • the processing module 2422 is configured to control and manage the action of the communication device 24 or execute a corresponding processing function, for example, to execute a function of the obtaining unit 2311.
  • the communication module 2423 is configured to support the communication device 24 to perform the functions of the receiving unit 2313 and the sending unit 2312.
  • the storage module 2421 is configured to store program code and / or data of the communication device.
  • the processing module 2422 may be a processor or a controller.
  • the processing module 2422 may be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), or an application-specific integrated circuit. integrated circuit (ASIC), field programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logical blocks, modules, and circuits described in connection with the disclosure of this application.
  • the processor may also be a combination that realizes computing functions, for example, a combination including one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the communication module 2423 may be a transceiver, a transceiver circuit, Bluetooth, a network interface, or a communication interface.
  • the storage module 2421 may be a memory.
  • the processing module 2222 may be the processor 501 in FIG. 5
  • the communication module 2223 may be the communication interface 504 in FIG. 5
  • the storage module 2221 may be the memory 503 in FIG. 5.
  • one or more programs are stored in the memory, and the one or more programs include instructions that, when executed by the communication device, cause the communication device to execute the related method of the UPF network element in any of the drawings in FIGS. 11A-18.
  • An embodiment of the present application further provides a communication device, including a processor and a memory, where the memory is used to store a program, and the processor calls a program stored in the memory to cause the communication device to execute any of the drawings in FIGS. 11A-18 Related methods of UPF network elements.
  • An embodiment of the present application further provides a computer storage medium storing one or more programs, where a computer program is stored, and when the computer program is executed by a processor, the communication device executes the UPF in any of the drawings in FIGS. 11A-18 Related methods of network elements.
  • An embodiment of the present application further provides a computer program product including instructions.
  • the computer program product runs on a communication device, the communication device is caused to execute the related method of the UPF network element in any of the drawings in FIGS. 11A-18.
  • An embodiment of the present application provides a chip system.
  • the chip system includes a processor, and is configured to support a communication device to execute a related method of a UPF network element in any one of FIGS. 11A-18.
  • a first device obtains a port identifier of the first device, wherein the first device is a sending end or a receiving end that communicates through a data stream, and the data stream includes first information that identifies the data stream, the The first information is used to instruct the sending end to send data through the data stream, and is also used to instruct the receiving end to receive the data through the data stream; the first device sends a port indicating the first device The second information that is identified, and the port identifier of the first device is used to create the data stream.
  • the chip system further includes a memory, which is used to store program instructions and data necessary for the terminal device.
  • the chip system may include a chip, an integrated circuit, or a chip and other discrete devices, which are not specifically limited in the embodiments of the present application.
  • the communication device, computer storage medium, computer program product, or chip system provided in this application is used to execute the corresponding methods provided above. Therefore, for the beneficial effects that can be achieved, reference may be made to the corresponding corresponding methods provided above. The beneficial effects in the method are not repeated here.
  • the foregoing communication device may be a UPF network element, or a component (a chip or a circuit, etc.) applicable to the UPF network element.
  • the size of the sequence numbers of the above processes does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not deal with the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
  • 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 on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be from a website site, a computer, a server, or a data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or it may include one or more data storage devices such as servers, data centers and the like that can be integrated with the medium.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (Solid State Disk, SSD)), and the like.

Abstract

本申请公开了一种通信方法和装置，涉及通信领域，用于保证AN网元与UPF网元之间报文传输的时延和可靠性。该通信方法包括：控制设备根据第一指示信息和第二指示信息确定通过数据流通信的发送端和接收端，其中，第一指示信息用于指示第一设备为发送端，第二指示信息用于指示第二设备为接收端，或者，第一指示信息用于指示第一设备为接收端，第二指示信息用于指示第二设备为发送端；控制设备获取数据流的带宽信息；控制设备发送数据流信息，发送带宽信息，其中，数据流信息用于指示发送端的端口标识、接收端的端口标识中的至少一项，发送端的端口标识、接收端的端口标识以及带宽信息用于数据流的创建。

Description

通信方法和装置
本申请要求于2018年6月26日提交中国国家知识产权局、申请号为201810673277.9、发明名称为“通信方法和装置”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，尤其涉及一种通信方法和装置。
背景技术
如图1中所示，在现有的第五代(5th generation，5G)通信技术中，接入网络(access network，AN)网元与用户面功能(user plane function，UPF)网元之间的通信网络中包括多个路由设备，AN网元或UPF网元通过N3接口与路由设备连接，N3接口采用GPRS隧道协议用户面(GPRS tunnel protocol-user plane，GTP-U)协议。GTP-U报文的网络协议(internet protocol，IP)报文头中，源IP地址或目的IP地址分别为AN网元或UPF网元的IP地址，AN网元与UPF网元之间的路由设备基于IP路由来转发报文，可以使得用户上行数据流能够到达指定的UPF网元，下行数据流能够到达指定的AN网元。
但是，由于AN网元与UPF网元之间的路由设备基于IP路由来转发报文，需要根据路由表及负载等情况为报文选择下一跳路由设备，因此转发路径是不确定的。并且各路由设备上的调度策略等也不保证报文的转发时延。因此，基于IP路由转发报文无法保证AN网元与UPF网元之间报文传输的时延和可靠性。
发明内容
本申请实施例提供一种通信方法和装置，用于保证AN网元与UPF网元之间报文传输的时延和可靠性。
为达到上述目的，本申请的实施例采用如下技术方案：
第一方面，本申请实施例提供了一种通信方法，该方法包括：控制设备根据第一指示信息和第二指示信息确定通过数据流通信的发送端和接收端，其中，第一指示信息用于指示第一设备为发送端，第二指示信息用于指示第二设备为接收端，或者，第一指示信息用于指示第一设备为接收端，第二指示信息用于指示第二设备为发送端，数据流包括标识数据流的第一信息，第一信息用于指示发送端通过数据流发送数据，还用于指示接收端通过数据流接收数据；控制设备获取数据流的带宽信息；控制设备发送数据流信息，发送带宽信息，其中，数据流信息用于指示发送端的端口标识、接收端的端口标识中的至少一项，发送端的端口标识、接收端的端口标识以及带宽信息用于数据流的创建。本申请实施例提供的通信方法，控制设备确定通过数据流通信的发送端和接收端，并确定该数据流的带宽信息。控制设备向其他网元发送数据流的带宽信息以及发送端与接收端之间通过数据流通信时所采用的端口的端口标识，使得NRF网元、控制设备或其他控制面网元以及作为发送端和接收端的AN网元和 UPF网元可以获知传输数据流的TSN管道信息，进而可以在AN网元与UPF网元之间建立TSN管道。当后续用户创建可靠时延的数据流或者会话时，AN网元和UPF网元之间通过TSN管道来传输数据流或会话，不会存在基于IP路由转发报文时转发路径的不确定性，从而保证AN网元与UPF网元之间报文传输的时延和可靠性。
在一种可能的实施方式中，该通信方法还包括：控制设备从第一设备接收第一指示信息，和/或，从第二设备接收第二指示信息。该实施方式提供了控制设备获取第一指示信息和第二指示信息的一种方式。该实施方式提供了控制设备获取第一指示信息和第二指示信息的一种方式。
在一种可能的实施方式中，该通信方法还包括：控制设备从会话管理功能网元接收第一指示信息和第二指示信息。该实施方式提供了控制设备获取第一指示信息和第二指示信息的另一种方式。
在一种可能的实施方式中，该通信方法还包括：控制设备根据配置、策略或编排获取第一指示信息和第二指示信息。该实施方式提供了控制设备获取第一指示信息和第二指示信息的又一种方式。
在一种可能的实施方式中，该通信方法还包括：控制设备向第一设备发送第一指示信息，和/或，向第二设备发送第二指示信息。该实施方式使得第一设备和/或第二设备可以获知自身为发送端或接收端。
在一种可能的实施方式中，该通信方法还包括：控制设备从发送端和/或接收端接收第一信息。该实施方式提供了控制设备获取第一信息的一种方式。
在一种可能的实施方式中，该通信方法还包括：控制设备根据配置、策略或编排获取第一信息。该实施方式提供了控制设备获取第一信息的另一种方式。
在一种可能的实施方式中，该通信方法还包括：控制设备向集中用户配置网元发送第一信息。该实施方式使得集中用户配置网元可以获知标识数据流的信息。
在一种可能的实施方式中，该通信方法还包括：控制设备从集中用户配置网元接收第一信息。该实施方式提供了控制设备获取第一信息的又一种方式。
在一种可能的实施方式中，该通信方法还包括：控制设备向发送端和/或接收端发送第一信息。该实施方式使得发送端和/或接收端可以获知标识数据流的信息。
在一种可能的实施方式中，该通信方法还包括：控制设备从发送端接收发送端的端口标识，从接收端接收接收端的端口标识。该实施方式提供了控制设备获取发送端的端口标识和/或接收端的端口标识的一种方式。
在一种可能的实施方式中，控制设备发送数据流信息，包括：控制设备向集中用户配置网元发送数据流信息。该实施方式使得集中用户配置网元可以获知数据流信息。
在一种可能的实施方式中，该通信方法还包括：控制设备从会话管理功能网元接收发送端的设备标识和接收端的设备标识；控制设备从集中用户配置网元接收可靠时延传输网络的拓扑信息，其中，拓扑信息中包括发送端的设备标识与发送端的端口标识之间的对应关系，以及，接收端的设备标识与接收端的端口标识之间的对应关系；控制设备根据发送端的设备标识、接收端的设备标识以及拓扑信息获取发送端的端口标识以及接收端的端口标识。该实施方式提供了控制设备获取发送端的端口标识和接收端的端口标识的另一种方式。
在一种可能的实施方式中，数据流信息包括发送端的端口标识，控制设备发送数据流信息，包括：控制设备向发送端发送数据流信息，其中，数据流信息用于指示发送端通过发送端的端口标识对应的端口向接收端发送流预留协议SRP请求消息，SRP请求消息用于触发数据流的创建。该实施方式使得发送端和接收端可以通过SRP协议创建数据流。
在一种可能的实施方式中，数据流信息包括接收端的端口标识，控制设备发送数据流信息，包括：控制设备向接收端发送数据流信息，其中，数据流信息用于指示接收端通过接收端的端口标识对应的端口向发送端发送SRP响应消息，SRP响应消息用于对来自发送端的SRP请求消息进行响应。该实施方式使得发送端和接收端可以通过SRP协议创建数据流。
在一种可能的实施方式中，数据流信息包括可靠时延传输网络标识，其中，可靠时延传输网络标识与发送端的端口标识和接收端的端口标识关联。该实施方式提供了隐式指示发送端的端口标识和接收端的端口标识的一种方式。
在一种可能的实施方式中，控制设备获取数据流的带宽信息，包括：控制设备从发送端和/或接收端接收带宽信息。该实施方式提供了控制设备获取数据流的带宽信息的一种方式。
在一种可能的实施方式中，控制设备获取数据流的带宽信息，包括：控制设备根据配置、策略或编排获取带宽信息。该实施方式提供了控制设备获取数据流的带宽信息的另一种方式。
在一种可能的实施方式中，发送带宽信息，包括：控制设备向发送端和/或接收端发送带宽信息。该实施方式使得发送端和/或接收端能够获知数据流的带宽信息。
在一种可能的实施方式中，发送带宽信息，包括：控制设备向集中用户配置网元发送带宽信息。该实施方式使得集中用户配置网元能够获知数据流的带宽信息。
在一种可能的实施方式中，该通信方法还包括：控制设备向网络功能存储功能网元发送发送端与接收端之间的可达信息，可达信息用于指示发送端与接收端位于同一可靠时延传输网络中。该实施方式使得网络功能存储功能网元能够获知发送端与接收端之间的可达信息，E后续为用户创建包含可靠时延用户流或会话时作为选择UPF网元的依据。
第二方面，本申请实施例提供了一种通信方法，该方法包括：第一设备获取第一设备的端口标识，其中，第一设备为通过数据流通信的发送端或接收端，数据流包括标识数据流的第一信息，第一信息用于指示发送端通过数据流发送数据，还用于指示接收端通过数据流接收数据；第一设备发送指示第一设备的端口标识的第二信息，第一设备的端口标识用于数据流的创建。本申请实施例提供的通信方法，分别作为发送端和接收端的AN网元和UPF网元可以获知通过数据流通信时所采用的端口的端口标识，并指示该端口标识。当后续AN网元和UPF网元根据该端口标识创建可靠时延的数据流或者会话时，AN网元和UPF网元之间通过TSN管道来传输数据流或会话，不会存在基于IP路由转发报文时转发路径的不确定性，从而保证AN网元与UPF网元之间报文传输的时延和可靠性。
在一种可能的实施方式中，第一设备获取第一设备的端口标识，包括：第一设备从控制设备接收可靠时延传输网络标识，第一设备根据可靠时延传输网络标识获取第一设备的端口标识。该实施方式提供了第一设备获取第一设备的端口标识的另一种方式。
在一种可能的实施方式中，第一设备获取第一设备的端口标识，包括：第一设备从控制设备接收第一设备的端口标识。该实施方式提供了第一设备获取第一设备的端口标识的另一种方式。
在一种可能的实施方式中，第一设备发送指示第一设备的端口标识的第二信息，包括：第一设备向控制设备发送第一设备的端口标识。该实施方式使得控制设备可以获知第一设备的端口标识。
在一种可能的实施方式中，该通信方法还包括：第一设备通过第一设备的端口标识对应的端口向第二设备发送流预留协议SRP请求消息，其中，SRP请求消息用于触发数据流的创建，第一设备为发送端，第二设备为接收端。或者，第一设备通过第一设备的端口标识对应的端口向第二设备发送SRP响应消息，其中，SRP响应消息用于对来自第二设备的SRP请求消息进行响应，SRP请求消息用于触发数据流的创建，第一设备为接收端，第二设备为发送端。该实施方式使得发送端和接收端可以通过SRP协议创建数据流。
在一种可能的实施方式中，该通信方法还包括：第一设备从控制设备接收第一指示信息，第一指示信息用于指示第一设备为发送端或接收端。该实施方式使得第一设备可以获知自身是发送端或接收端。
在一种可能的实施方式中，该通信方法还包括：第一设备向控制设备发送第一指示信息，第一指示信息用于指示第一设备为发送端或接收端。该实施方式使得控制设备可以获知第一设备是发送端或接收端。
在一种可能的实施方式中，该通信方法还包括：第一设备从控制设备接收数据流的带宽信息。该实施方式使得第一设备可以获知数据流的带宽信息。
在一种可能的实施方式中，该通信方法还包括：第一设备向控制设备发送数据流的带宽信息。该实施方式使得控制设备可以获知数据流的带宽信息。
在一种可能的实施方式中，该通信方法还包括：第一设备从控制设备接收第一信息。该实施方式使得控制设备可以获知标识数据流的信息。
在一种可能的实施方式中，该通信方法还包括：第一设备向控制设备发送第一信息。该实施方式使得第一设备可以获知标识数据流的信息。
第三方面，本申请实施例提供了一种通信装置，用于执行上述第一方面和第一方面的各种可能实施方式所述的方法。
第四方面，本申请实施例提供了一种通信装置，用于执行上述第二方面和第二方面的各种可能实施方式所述的方法。
第五方面，本申请实施例提供一种通信系统，包括如第三方面所述的通信装置以及第四方面所述的通信装置。
第六方面，本申请实施例提供一种通信装置，包括：处理器和存储器，存储器用于存储程序，处理器调用存储器存储的程序，以执行上述第一方面和第一方面的各种可能实施方式所述的方法，或者执行上述第二方面和第二方面的各种可能实施方式所述的方法。
第七方面，本申请实施例提供一种存储介质，其上存储有计算机程序，计算机程序被处理器执行时执行上述第一方面和第一方面的各种可能实施方式所述的方法，或者执行上述第二方面和第二方面的各种可能实施方式所述的方法。
第八方面，本申请实施例提供一种计算机程序产品，当该计算机程序产品在通信装置上运行时，使得通信装置执行上述第一方面和第一方面的各种可能实施方式所述的方法，或者执行上述第二方面和第二方面的各种可能实施方式所述的方法。
第九方面，本申请实施例提供一种芯片系统，包括：处理器，用于支持通信装置执行上述第一方面和第一方面的各种可能实施方式所述的方法，或者执行上述第二方面和第二方面的各种可能实施方式所述的方法。
第三方面至第九方面的技术效果可以参照第一方面至第二方面所述内容。
附图说明
图1为本申请实施例提供的一种GTP-U协议栈示意图；
图2为本申请实施例提供的一种通信系统的架构示意图；
图3为本申请实施例提供的一种手机的结构示意图；
图4为本申请实施例提供的一种基站的结构示意图；
图5为本申请实施例提供的一种网络设备的结构示意图；
图6为本申请实施例提供的一种二层封装后报文的以太帧格式的示意图；
图7为本申请实施例提供的一种二层交换原理的示意图；
图8为本申请实施例提供的一种TSN网络的架构示意图；
图9为本申请实施例提供的一种GTP-U管道或者二层管道的示意图；
图10为本申请实施例提供的一种TSN管道报文的示意图；
图11A为本申请实施例提供的一种通信方法的流程示意图一；
图11B为本申请实施例提供的一种通信方法的流程示意图二；
图12为本申请实施例提供的一种通信方法的流程示意图三；
图13为本申请实施例提供的一种通信方法的流程示意图四；
图14为本申请实施例提供的一种通信方法的流程示意图五；
图15为本申请实施例提供的一种通信方法的流程示意图六；
图16为本申请实施例提供的一种通信方法的流程示意图七；
图17为本申请实施例提供的一种通信方法的流程示意图八；
图18为本申请实施例提供的一种通信方法的流程示意图九；
图19为本申请实施例提供的一种通信装置的结构示意图一；
图20为本申请实施例提供的一种通信装置的结构示意图二；
图21为本申请实施例提供的另一种通信装置的结构示意图一；
图22为本申请实施例提供的另一种通信装置的结构示意图二；
图23为本申请实施例提供的又一种通信装置的结构示意图一；
图24为本申请实施例提供的又一种通信装置的结构示意图二。
具体实施方式
本申请实施例依托无线通信网络中5G网络的场景进行说明，应当指出的是，本申请实施例中的方案还可以应用于其他无线通信网络中，相应的名称也可以用其他无线通信网络中的对应功能的名称进行替代。
如图2中所示，本申请实施例提供的通信系统架构包括：终端设备201、无线接入网((radio)access network，(R)AN)网元202、接入和移动性管理功能(access and mobility  management function，AMF)网元203、会话管理功能(session management function，SMF)网元204、用户面功能(user plane function，UPF)网元205、网络功能存储功能(network function repository function，NRF)网元206、集中用户配置(centralized user configuration，CUC)网元207、集中网络配置(centralized network configuration，CNC)网元208。可选的，该通信系统还可以包括控制(controller)设备209。
需要说明的是，在一种可能的设计中，控制设备209可以与SMF网元204合一布置。换句话说，控制设备209的功能可以由SMF网元204来执行。在另一种可能的设计中，该控制设备209可以与CUC网元207合一布置。换句话说，控制设备209的功能可以由CUC网元207来执行。此外，SMF网元204可以与CUC网元207合一布置。例如，CUC网元207的功能都可以由SMF网元204来执行。
需要说明的是，图中的各个网元之间的接口名字只是一个示例，具体实现中接口名字可能为其他名字，本申请实施例对此不作具体限定。例如，终端设备201与AMF网元203之间的接口可以为N1接口，RAN网元202与AMF网元203之间的接口可以为N2接口，RAN网元202与UPF网元205之间的接口可以为N3接口，UPF网元205与SMF网元204之间的接口可以为N4接口,AMF网元203与SMF网元204之间的接口可以为N11接口，UPF网元205与数据网络(data network，DN)之间的接口可以为N6接口。
本申请实施例中所涉及到的终端设备201可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其他处理设备；还可以包括用户单元(subscriber unit)、蜂窝电话(cellular phone)、智能电话(smart phone)、无线数据卡、个人数字助理(personal digital assistant，PDA)电脑、平板型电脑、无线调制解调器(modem)、手持设备(handheld)、膝上型电脑(laptop computer)、无绳电话(cordless phone)或者无线本地环路(wireless local loop，WLL)台、机器类型通信(machine type communication，MTC)终端、用户设备(user equipment，UE)、移动台(mobile station，MS)、终端设备(terminal device)或者中继用户设备等。其中，中继用户设备例如可以是5G家庭网关(residential gateway，RG)。为方便描述，上面提到的设备可以统称为终端设备。
以终端设备201为手机为例，对手机的硬件架构进行说明。如图3所示，手机201可以包括：射频(radio frequency，RF)电路300、存储器320、其他输入设备330、显示屏340、传感器350、音频电路360、I/O子系统370、处理器380、以及电源390等部件。本领域技术人员可以理解，图中所示的手机的结构并不构成对手机的限定，可以包括比图示更多或者更少的部件，或者组合某些部件，或者拆分某些部件，或者不同的部件布置。本领域技术人员可以理解显示屏340属于用户界面(user interface，UI)，显示屏340可以包括显示面板341和触摸面板342。尽管未示出，手机还可以包括摄像头、蓝牙模块等功能模块或器件，在此不再重复。
进一步地，处理器380分别与RF电路300、存储器320、音频电路360、I/O子系统370、以及电源390连接。I/O子系统370分别与其他输入设备330、显示屏340、传感器350连接。其中，RF电路300可用于在收发信息或通话过程中对信号的接收和发送，特别地，接收来自网络设备的下行信息后，发送给处理器380处理。存储器320可用于存储软件程序以及模块。 处理器380通过运行存储在存储器320的软件程序以及模块，从而执行手机的各种功能应用以及数据处理，例如执行本申请实施例中终端设备的方法和功能。其他输入设备330可用于接收输入的数字或字符信息，以及产生与手机的用户设置以及功能控制有关的键盘信号输入。显示屏340可用于显示由用户输入的信息或提供给用户的信息以及手机的各种菜单，还可以接受用户输入。传感器350可以为光传感器、运动传感器或者其他传感器。音频电路360可提供用户与手机之间的音频接口。I/O子系统370用来控制输入输出的外部设备，外部设备可以包括其他设备输入控制器、传感器控制器、显示控制器。处理器380是手机200的控制中心，利用各种接口和线路连接整个手机的各个部分，通过运行或执行存储在存储器320内的软件程序和/或模块，以及调用存储在存储器320内的数据，执行手机的各种功能和处理数据，从而对手机进行整体监控。电源390(比如电池)用于给上述各个部件供电，优选的，电源可以通过电源管理系统与处理器380逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗等功能。在本申请实施例中终端设备201可以通过RF电路300从RAN网元202接收信号。
RAN网元202为向终端设备201提供无线接入的设备。RAN网元202包括但不限于eNodeB、无线保真(wireless fidelity，Wi-Fi)接入点、全球微波互联接入(worldwide interoperability for microwave access，WiMAX)基站等。本申请实施例中的RAN网元202可以包括单RAN网元，或者包括双RAN网元。例如，双RAN网元包括主无线接入网(master radio access network，M-RAN)网元和辅无线接入网(secondary radio access network，S-RAN)网元。单RAN网元或者双RAN网元可以与UPF网元通过双隧道传输报文。
以RAN网元202为基站为例，对基站的硬件架构进行说明。如图4所示，基站202可以包括室内基带处理单元(building baseband unit，BBU)401和远端射频模块(remote radio unit，RRU)402，RRU 402和天馈系统(即天线)403连接，BBU 401和RRU 402可以根据需要拆开使用。其中，BBU 401可以包括处理器431、存储器432及总线系统433，BBU 401的处理器431、存储器432通过总线系统433相互连接。上述总线系统可以是外设部件互连标准总线或扩展工业标准结构总线等。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图中仅用一条线表示，但并不表示仅有一根总线或一种类型的总线。RRU 402可以包括RF电路434，基站202还可以包括光纤435、同轴电缆436。RRU 402中的RF电路434与BBU 401之间通过光纤435相互连接，RRU 402中的RF电路434与天线403之间通过同轴电缆436相互连接。基站可以包括各种形式的基站，例如：宏基站，微基站(也称为小站)，中继站，接入点等。本申请实施例所述的RAN网元202用于终端设备201与核心网设备之间传输数据。
AMF网元203可以负责移动网络中的移动性管理，如用户位置更新、用户注册网络、用户切换等。
SMF网元204可以负责移动网络中的会话管理，如会话建立、修改、释放，具体功能如为用户分配IP地址、选择提供报文转发功能的UPF网元等。
UPF网元205可以负责对用户报文进行处理，如转发、计费等。
NRF网元206可以提供网络功能实例注册、发现等功能。
CUC网元207和CNC网元208是时延敏感网络(time sensitive network，TSN)网络中 的控制设备。其中，CUC网元207用于管理终端及业务，例如接收TSN网元中发送端(talker)和接收端(listener)的注册、交换配置参数等；CNC网元208用于管理TSN网络中的交换节点，例如维护TSN网络的拓扑、计算交换节点上的调度策略并下发到交换节点上等。
控制设备209用于管理AN网元202与UPF网元205之间的TSN网络。
交换设备210用于在AN网元202与UPF网元205之间传输报文。
AMF网元203、SMF网元204、UPF网元205、NRF网元206、控制设备209这些网元可以统称为核心网网元，下面以一种网络设备为例，对这些核心网网元的结构进行说明，本申请实施例并不限定各核心网网元必须具有如下图中所示的单元或器件，可以具有更多或更少的单元或器件。
如图5所示，网络设备500可以包括至少一个处理器501，通信线路502，存储器503以及至少一个通信接口504。处理器501可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。通信线路502可包括一通路，在上述组件之间传送信息。通信接口504，使用任何收发器一类的装置，用于与其他设备或通信网络通信，如以太网，无线接入网(radio access network，RAN)，无线局域网(wireless local area networks，WLAN)等。存储器503可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过通信线路502与处理器相连接。存储器也可以和处理器集成在一起。其中，存储器503用于存储执行本申请方案的计算机执行指令(可以称之为应用程序代码)，并由处理器501来控制执行。处理器501用于执行存储器503中存储的计算机执行指令，从而实现本申请下述实施例提供的方法。
本申请实施例提供的通信方法和装置，为了解决AN网元与UPF网元之间基于IP路由来转发报文，无法保证报文传输的时延和可靠性的问题，将AN网元和UPF网元分别作为TSN网络中的发送端和接收端，在AN网元与UPF网元之间建立TSN管道，当后续用户创建可靠时延的数据流或者会话时，通过TSN管道来传输数据流或会话，从而保证AN网元与UPF网元之间报文传输的时延和可靠性。下面对本申请实施例所述的TSN网络、TSN管道和数据流进行描述。
传统以太网络的转发过程中，当大量的数据包在一瞬间抵达交换设备210的转发端口时，会造成转发时延大或者丢包的问题，因此传统以太网不能提供高可靠性以及传输时延有保障的服务，无法满足汽车控制、工业互联网等领域的需求。美国电气电子工程师学会(institute of electrical and electronic engineers，IEEE)针对可靠时延传输的需求，定义了相关的TSN网络标准，该标准基于二层交换来提供可靠时延传输服务，保障时延敏感业务数据传输的可靠性，以及可预测的端到端传输时延。
二层交换属于链路层交换，基于媒体访问控制(media access control，MAC)地址进行转发，交换设备210通过查询MAC学习表获得转发端口，对于MAC学习表中没有记录的地址，则通过广播方式转发。如图6中所示，为一种二层封装后报文的以太帧格式，其中目的地址(destination address，DA)表示目的MAC地址，源地址(source address，SA)表示源MAC地址，类型(TYPE)表示该以太帧的以太类型，数据(DATA)表示数据段，循环冗余校验(cyclic redundancy check，CRC)用来检测或校验数据传输或者保存后可能出现的错误。当该以太帧携带虚拟局域网(virtual local area network，VLAN)信息时，在SA字段与TYPE字段之间增加VLAN标签(TAG)，包括以太类型值(类型2)0x8100、优先级(PRIORITY)字段、标准格式指示位(canonical format indicatior，CFI)字段和VLAN ID字段。以太类型值0x8100在VLAN标签中也叫标签协议标识(tag protocol identifier，TPID)，其也可以是其他值。二层封装后报文的以太帧中可以没有VLAN标签，或者至少一个VLAN标签。需要说明的是，以太帧的以太类型(类型1)与TAG中的以太类型值(类型2)无关。
如图7中所示，为二层交换原理，交换设备210保存有MAC学习表，记录用户MAC地址和端口的对应关系，如果是基于VLAN和MAC地址转发，该MAC学习表还会包含对应的VLAN信息。交换设备在从端口1接收到目的地址为MAC4的报文时，查询MAC学习表获得MAC4对应的端口信息为端口2，之后将报文从端口2发送出去。其中MAC学习表中的MAC4的表项是当端口2接收到一个源MAC地址为MAC4的报文时学习到的，也可以通过配置获得。
如图8中所示，TSN网络包括交换节点(图中交换节点1、交换节点2和交换节点3)和数据终端(图中数据终端1和数据终端2)。TSN网络中数据流是单向流，对于一条数据流，数据终端包括发送端(talker)和接收端(listener)。TSN标准定义了数据终端和交换节点的行为以及交换节点转发数据流的调度方式，从而实现可靠时延传输。TSN网络中的交换节点以报文的目的MAC地址作为标识数据流的信息，根据待传输用户流的时延需求进行资源预留以及调度规划，从而根据生成的调度策略来保障报文传输的时延和可靠性。
如图8中所示，TSN网络目前包括两种资源预留及管理方式：
方式一：通过流预留协议(stream reservation protocol，SRP)创建转发通道。假设图中数据终端1为发送端(talker)，在其发送数据流之前，先通过SRP协议在发送端和接收端之间的交换节点上进行资源预留。具体的可以包括以下流程：
(a)、数据终端1向交换节点1发送SRP请求消息，该SRP请求消息中包括标识数据流的信息、VLAN、服务等级(class of service，CoS)、时延信息等。其中，标识数据流的信息可以包括数据流的流标识(ID)和/或目的MAC地址；VLAN和CoS用于标识TSN转发域；时延信息用于确定转发路径是否满足数据流的时延需求。交换节点1在接收到该SRP请求消息后，将SRP请求中的时延信息叠加本节点的预计时延后，在TSN网络内的端口(端口3、4)上广播该SRP请求消息。交换结点2和交换结点3均接收到该SRP请求消息，由于交换节点3当前只与交换节点1位于同一TSN网络中，因此不再向其他交换节点转发。由于与交换节点2与数据终端2位于同一TSN网络中，交换节点2在接收到该SRP请求消息后，将SRP请求中的时延信息叠加自己节点的预计时延后，在TSN网络内的端口(端口3)上向数据终端2发送该SRP请求消息。
(b)数据终端2接收到该SRP请求消息后，根据SRP请求消息中的标识数据流的信息与 应用信息确定该SRP请求消息对应自己需要接收的数据流，并且时延信息满足预设要求的情况下，从接收到SRP请求消息的端口发送SRP应答消息。其中，应用信息可以由配置得到或从其他网元接收得到。
(c)TSN网络中的交换节点2和交换节点1接收到SRP应答消息后，预留带宽及调度资源，之后从接收SRP请求消息的端口转发SRP应答消息。
经过上述过程，在发送端和接收端之间将会创建一条转发通道，并且各交换节点根据SRP请求预留相关资源；之后各交换节点在接收到发送端发送的数据流时，将根据预留的资源进行调度转发，从而保障报文传输的时延和可靠性。
方式二：IEEE在802.1QCC中定义的集中管理方式。管理面包含CUC网元和CNC网元，其中CUC网元用于管理终端及业务，例如接收发送端和接收端注册，交换配置参数等；CNC网元管理TSN网络中的交换节点，例如维护TSN网络的拓扑、计算交换节点上的调度策略并下发到交换节点上等。具体的可以包括以下流程：
(d)、CUC网元接收数据终端作为TSN网络的发送端或接收端的注册请求，请求中包含指示该数据终端为发送端或接收端的指示信息、标识数据流的信息、带宽需求、时延需求等。
(e)、CUC网元接收到上述信息后，向CNC网元发送创建数据流的请求。
(f)、在创建数据流之前，CNC网元会生成TSN网络的拓扑，例如交换节点之间的连接拓扑以及交换节点与数据终端之间的连接拓扑。CNC网元从CUC网元接收到创建数据流的请求后，根据数据流的带宽需求和时延需求等计算出TSN网络内的转发路径及路径上各交换节点的调度策略，之后将策略下发到相应交换节点上。
在本申请实施例中，AN网元和UPF网元分别为TSN网络中通过数据流通信的发送端和接收端。为便于描述，本申请实施例将AN网元与UPF网元之间传输数据流的转发通道统称为TSN管道，TSN管道可以包括多种类型的转发通道，例如GTP-U管道、二层管道、虚拟的传输管道等。
如图9中所示，为在TSN网络中创建的AN网元与UPF网元之间的GTP-U管道或者二层管道的示意图。GTP-U管道指与GTP-U隧道的IP地址信息绑定的管道，标识数据流的信息与GTP-U隧道的IP地址信息是绑定的，即通过标识数据流的信息和GTP-U隧道的IP地址信息来确定GTP-U管道；一个GTP-U管道中可以包括至少一个GTP-U隧道，各GTP-U隧道通过隧道端点标识(tunnel endpoint identifier，TEID)来区分。二层管道指与二层的信息(即标识数据流的信息)绑定的管道，该管道不与GTP-U隧道的IP地址信息绑定，即可以通过标识数据流的信息来确定二层管道；一个二层管道中可以包括至少一个GTP-U隧道，各GTP-U隧道通过TEID和GTP-U隧道的IP地址来区分。
可选的，可以将SMF网元或控制设备创建的TSN管道信息保存在NRF网元、控制设备或其他控制面网元中，用于后续用户创建可靠时延的数据流或者会话时，作为选择UPF网元或创建GTP-U隧道的依据。TSN管道信息可以包括标识数据流的信息、AN网元的设备标识、UPF网元的设备标识、AN网元的端口标识、UPF网元的端口标识、可靠时延传输网络标识、GTP-U隧道的源IP地址、目的IP地址中的至少一项。
可选的，也可以将TSN管道信息保存在对应的UPF网元和AN网元上，用于后续创建可靠时延的数据流或者会话时，作为AN网元和UPF网元创建GTP-U隧道的依据。
可选的，NRF网元、控制设备或其他控制面网元也可以保存AN网元和UPF网元在TSN网络中的可达信息，作为创建用户会话时选择UPF网元的依据，该可达信息指示位于同一可靠时延传输网络中的发送端与接收端。可选的，NRF网元、控制设备或其他网元也可以保存与AN网元的端口标识和UPF网元的端口标识关联的可达信息，作为创建会话或数据流时选择转发端口的依据(例如对于二层转发时选择N3转发接口)，该可达信息指示位于同一可靠时延传输网络中发送端的端口与接收端的端口。如果将发送端的端口与接收端的端口抽象为设备，则可以将上述可达信息统一表述为：可达信息用于指示位于同一可靠时延传输网络中的发送端与接收端。由于这种场景没有创建GTP-U管道，可以认为是虚拟的传输管道。
TSN管道报文可以承载IP报文或者以太报文等。如图10中所示，TSN管道报文外层封装部分包括源MAC地址(S-MAC1)、目的MAC地址(D-MAC1)、GUP-U隧道的IP地址(IP)、GUP-U隧道的TEID(GTU-U)。其中，源MAC地址(S-MAC1)和目的MAC地址(D-MAC1)是用于在AN网元与UPF网元之间传输报文的MAC地址，可以是由控制设备、SMF网元或CUC网元分配的地址，或者是AN网元和/或UPF网元的MAC地址。GTP-U隧道的IP地址和TEID由SMF网元或者UPF网元确定，用于确定二层管道。TSN管道报文封装的内层载荷部分是用户流报文，包括目的MAC地址(D-MAC2)、源MAC地址(S-MAC2)和数据部分(DATA)。以以太封装为例，用户流报文中的源MAC地址(S-MAC2)和目的MAC地址(D-MAC2)是用于在接入网和/或DN网络中传输报文的MAC地址。在本申请实施例中标识数据流的信息包括数据流的流标识(ID)和/或TSN管道报文的目的MAC地址(D-MAC1)。例如，流标识(ID)可以包括TSN管道报文的源MAC地址(S-MAC1)以及作为标识的两个字节的编号。
本申请实施例提供了一种通信方法，控制设备确定TSN网络中通过数据流通信的发送端和接收端，并确定该数据流的带宽信息，控制设备向其他网元发送数据流的带宽信息以及发送端与接收端之间通过数据流通信时所采用的端口的端口标识，使得NRF网元、控制设备或其他控制面网元以及作为发送端和接收端的AN网元和UPF网元可以获知传输数据流的TSN管道的基本信息，进而可以在AN网元与UPF网元之间建立TSN管道。当后续用户创建可靠时延的数据流或者会话时，AN网元和UPF网元之间通过TSN管道来传输数据流或会话，不会存在基于IP路由转发报文时转发路径的不确定性，从而保证AN网元与UPF网元之间报文传输的时延和可靠性。
在AN网元、UPF网元、NRF网元、控制设备或其他控制面网元上保存的TSN管道信息可以包括：
AN网元与UPF网元之间的GTP-U管道信息，GTP-U管道信息可以包括AN网元的设备标识、UPF网元的设备标识、传输时延信息和标识数据流的信息中的至少一项。例如，(UPF1，AN1，10ms，012a.3322.00af)，其中，UPF1和AN1为设备标识，10ms表示UPF1网元和AN1网元之间GTP-U管道的最大传输时延，012a.3322.00af表示标识数据流的信息。
AN网元和UPF网元在TSN网络中的可达信息，该可达信息可以包括AN网元的设备标识和UPF网元的设备标识，或者，可以包括TSN网络的标识及该TSN网络中AN网元的设备标识和/或UPF网元的设备标识。例如，(UPF1、AN1、AN2…)表示UPF1网元、AN1网元、AN2网元…在同一个TSN网络中。(TSN1，UPF1，UPF2…)表示UPF1网元、UPF2网元…在同一个TSN网络中，TSN网络的标识是TSN1。
与AN网元的端口标识和UPF网元的端口标识关联的可达信息，该可达信息可以包括AN网元的设备标识和端口标识，和/或，UPF网元的设备标识和端口标识；或者，可以包括TSN网络的标识及该TSN网络中AN网元的端口标识和/或UPF网元的端口标识。例如，{(UPF1，p1、p2…)，(AN1，p1、p2…)}，表示UPF1网元的端口p1、p2…和AN1网元的端口p1、p2在同一个TSN网络中。(TSN1，(UPF1，p1、p2…))表示UPF1网元的端口p1、p2…在同一TSN网络中，网络标识为TSN1。
在本申请实施例中，所述配置、策略或编排中的配置是指本设备运行功能前具有的TSN管道的部分或全部信息，是静态的配置；策略是指本设备根据一定条件生成TSN管道的部分或全部信息；编排是指从编排层(例如通过来自编排层的指令)获取TSN管道的部分或全部信息。
在本申请实施例中，第一指示信息用于指示第一设备为发送端，第二指示信息用于指示第二设备为接收端；或者，第一指示信息用于指示第一设备为接收端，第二指示信息用于指示第二设备为发送端。需要说明的是，第一指示信息和第二指示信息可以为一个指示信息，即该指示信息用于指示第一设备和第二设备中的一者为发送端另一者为接收端。在本申请实施例中采用第一指示信息和第二指示信息分开的方式进行描述，但本申请实施例并不限定该描述方式。需要说明的是，对同一TSN管道来说，第一设备和第二设备不能同时为发送端或同时为接收端，即第一设备和第二设备中的一者为发送端另一者为接收端。
在本申请实施例中，第一设备和第二设备可以为TSN网络中的数据终端，第一设备可以为AN网元，第二设备可以为UPF网元；或者，第一设备可以为UPF网元，第二设备可以为AN网元。如果AN网元为发送端，UPF网元为接收端，则进行上行传输；如果UPF网元为发送端，AN网元为接收端，则进行下行传输。
参照图11A中所示，该方法至少包括步骤S1101-S1103。
S1101、控制设备根据第一指示信息和第二指示信息确定通过数据流通信的发送端和接收端。
控制设备根据第一指示信息和第二指示信息，可以获知通过数据流通信的第一设备和第二设备中哪一个作为发送端哪一个作为接收端。
在一种可能的实施方式中，第一设备可以向控制设备发送第一指示信息，控制设备可以从第一设备接收第一指示信息。和/或，第二设备可以向控制设备发送第二指示信息，控制设备可以从第二设备接收第二指示信息。例如，第一设备上可以配置第一指示信息，如果第一设备向控制设备注册，则可以在注册请求消息中包括第一指示信息。控制设备可以根据配置、策略或编排确定第二指示信息；或者，第二设备上可以配置第二指示信息，如果第二设备向控制设备注册，则可以在注册请求消息中包括第二指示信息。
在一种可能的实施方式中，如果控制设备与SMF网元是分开部署的网元，控制设备可以从SMF网元接收第一指示信息和第二指示信息。需要说明的是，由于用户会话信息中包括AN网元的设备标识、UPF网元的标识以及用户流的方向，所以SMF网元可以根据用户会话信息来确定第一指示信息和第二指示信息。
在一种可能的实施方式中，控制设备可以根据配置、策略或编排获取第一指示信息和第二指示信息。
在一种可能的实施方式中，控制设备可以向第一设备发送第一指示信息，相应地，第一设备可以从控制设备接收第一指示信息。例如，如果控制设备没有从第一设备接收第一指示信息，控制设备可以根据配置、策略或编排获取第一指示信息，并向第一设备发送第一指示信息。
和/或，在一种可能的实施方式中，控制设备可以向第二设备发送第二指示信息，相应地，第二设备可以从控制设备接收第二指示信息。例如，如果控制设备没有从第二设备接收第二指示信息，控制设备可以根据配置、策略或编排获取第二指示信息，并向第二设备发送第二指示信息。
数据流可以包括标识该数据流的第一信息，第一信息用于指示发送端通过该数据流发送数据，还用于指示接收端通过该数据流接收数据。第一信息可以包括数据流的流标识(ID)和/或目的MAC地址。即第一信息可以隐式地指示数据流，例如，指示接收端根据数据流的目的MAC地址确定该数据流是发送给本端。第一信息也可以显式地指示数据流，例如，指示发送端和接收端之间创建一条流标识为flow1的数据流，则发送端可以根据该流标识flow1发送数据流，接收端可以根据该流标识flow1接收数据流。AN网元、UPF网元、NRF网元、控制设备或其他控制面网元可以根据第一信息获知对应的数据流。
在一种可能的实施方式中，发送端和/或接收端可以向控制设备发送第一信息，相应地，控制设备可以从发送端和/或接收端接收第一信息。例如，发送端和/或接收端上可以配置第一信息，如果发送端和/或接收端向控制设备注册,可以在注册请求消息中包括第一信息。
在一种可能的实施方式中，控制设备可以根据配置、策略或编排获取第一信息。
在一种可能的实施方式中，控制设备可以从CUC网元接收第一信息。第一信息可以由CUC网元分配得到。
S1102、控制设备获取该数据流的带宽信息。
控制设备根据数据流的带宽信息，可以获知该数据流可承载的用户数据的最大带宽。
数据流的带宽信息可以以多种形式来表示，可以包括最大带宽。例如：可以表示为1Gbps。或者，可以包括发包间隔、间隔内最大包个数、最大包长。例如，1Gbps的带宽可以表示为发包间隔1毫秒、间隔内最大包个数1000、最大包长1k字节，等等。
在一种可能的实施方式中，控制设备可以从发送端和/或接收端接收数据流的带宽信息。例如，发送端和/或接收端上可以配置数据流的带宽信息，如果发送端和/或接收端向控制设备注册,可以在注册请求消息中包括数据流的带宽信息。
在一种可能的实施方式中，控制设备可以根据配置、策略或编排获取数据流的带宽信息。
在一种可能的实施方式中，控制设备可以从发送端和/或接收端接收数据流的带宽信息。
S1103、控制设备发送数据流信息，发送数据流的带宽信息。
其中，数据流信息用于指示发送端的端口标识以及接收端的端口标识中的至少一项，发送端的端口标识、接收端的端口标识以及带宽信息用于数据流的创建。数据流信息可以包括发送端的端口标识以及接收端的端口标识中的至少一项。或者，数据流信息可以包括可靠时延传输网络标识，其中，可靠时延传输网络标识与发送端的端口标识和接收端的端口标识关联。控制设备根据发送端的端口标识和接收端的端口标识，可以获知发送端和接收端通过数据流通信时所使用的端口。
在一种可能的实施方式中，发送端可以向控制设备发送发送端的端口标识，相应地，控制设备可以从发送端接收发送端的端口标识。例如，发送端上可以配置发送端的端口标识，如果发送端向控制设备注册，则可以在注册请求消息中包括发送端的端口标识。和/或，接收端可以向控制设备发送接收端的端口标识，相应地，控制设备可以从接收端接收接收端的端口标识。例如，接收端上可以配置接收端的端口标识，如果接收端向控制设备注册，则可以在注册请求消息中包括接收端的端口标识。
在一种可能的实施方式中，控制设备可以从SMF网元接收发送端的设备标识和接收端的设备标识。控制设备获取可靠时延传输网络的拓扑信息，其中，拓扑信息中包括发送端的设备标识与发送端的端口标识之间的对应关系，还可以包括接收端的设备标识与接收端的端口标识之间的对应关系。示例性的，控制设备可以从CUC网元接收可靠时延传输网络的拓扑信息。控制设备根据发送端的设备标识、接收端的设备标识以及拓扑信息获取发送端的端口标识以及接收端的端口标识。
在一种可能的实施方式中，控制设备可以向CUC网元发送数据流信息。
在一种可能的实施方式中，控制设备可以向发送端发送数据流信息，其中，数据流信息用于指示发送端通过发送端的端口标识对应的端口向接收端发送流预留协议SRP请求消息，SRP请求消息用于触发数据流的创建。相应地，发送端可以从控制设备接收数据流信息。在该实施方式中，数据流信息可仅包括发送端的端口标识。
在一种可能的实施方式中，控制设备可以向接收端发送数据流信息，其中，数据流信息用于指示接收端通过接收端的端口标识对应的端口向发送端发送SRP响应消息，SRP响应消息用于对来自发送端的SRP请求消息进行响应。相应地，接收端可以从控制设备接收数据流信息。在该实施方式中，数据流信息可仅包括接收端的端口标识。
在一种可能的实施方式中，控制设备可以向发送端和/或接收端发送数据流的带宽信息。相应地，发送端和/或接收端(第一设备和/或第二设备)可以从控制设备接收数据流的带宽信息。例如，如果第一设备向控制设备注册时发送数据流的带宽信息，第二设备向控制设备注册时未发送数据流的带宽信息，则控制设备可以向第二设备发送数据流的带宽信息。或者，如果第一设备和第二设备向控制设备注册时均未发送数据流的带宽信息，则控制设备可以根据配置、策略或编排得到数据流的带宽信息，并向第一设备和第二设备发送数据流的带宽信息。
在一种可能的实施方式中，控制设备可以向CUC网元发送数据流的带宽信息，该数据流的带宽信息用于CUC网元创建数据流时，使创建的数据流满足带宽需求。例如控制设备从发送端和/或接收端接收数据流的带宽信息后，或者根据配置、策略或编排获取数据流的带宽信息后，可以向CUC网元发送该数据流的带宽信息。
在一种可能的实施方式中，控制设备可以向CUC网元发送该第一信息。例如控制设备从发送端和/或接收端接收第一信息后，或者根据配置、策略或编排获取第一信息后，可以向CUC网元发送该第一信息。
在一种可能的实施方式中，控制设备可以向发送端和/或接收端发送该第一信息。例如，控制设备从CUC网元接收第一信息后，或者根据配置、策略或编排获取第一信息后，可以向发送端和/或接收端发送该第一信息。或者控制设备从第一设备接收第一信息后，可以向第二 设备发送第一信息。或者控制设备从第二设备接收第一信息后，可以向第一设备发送第一信息。
本申请实施例提供的通信方法，控制设备确定通过数据流通信的发送端和接收端，并确定该数据流的带宽信息。控制设备向其他网元发送数据流的带宽信息以及发送端与接收端之间通过数据流通信时所采用的端口的端口标识，使得NRF网元、控制设备或其他控制面网元以及作为发送端和接收端的AN网元和UPF网元可以获知传输数据流的TSN管道信息，进而可以在AN网元与UPF网元之间建立TSN管道。当后续用户创建可靠时延的数据流或者会话时，AN网元和UPF网元之间通过TSN管道来传输数据流或会话，不会存在基于IP路由转发报文时转发路径的不确定性，从而保证AN网元与UPF网元之间报文传输的时延和可靠性。
如图11B中所示，该通信方法可以包括S1104和S1105。需要说明的是，图11B以第一设备为例进行描述，然而，图11B所示的方法同样适用于第二设备(通过数据流通信的接收端)，不再赘述。
S1104、第一设备获取第一设备的端口标识。
其中，第一设备可以为通过数据流通信的发送端。第一设备可以为AN网元或UPF网元。
在一种可能的实施方式中，第一设备可以根据配置获取第一设备的端口标识。
在一种可能的实施方式中，第一设备可以从控制设备接收可靠时延传输网络标识。如步骤S1103所述的，由于可靠时延传输网络标识与发送端的端口标识和接收端的端口标识关联，所以第一设备可以根据可靠时延传输网络标识获取第一设备的端口标识。
或者，在另一种可能的实施方式中，第一设备可以从控制设备接收第一设备的端口标识。
需要说明的是，可靠时延传输网络标识或第一设备的端口标识可以在数据流信息中携带。
S1105、第一设备发送指示第一设备的端口标识的第二信息。
其中，第一设备的端口标识用于数据流的创建。第二信息可以隐式或显式地指示第一设备的端口标识。
对于隐式指示来说，第一设备可以向控制设备发送可靠时延传输网络标识，可靠时延传输网络标识与第一设备的端口标识关联。
对于显式指示来说，在一种可能的实施方式中，如果第一设备没有从控制设备接收第一设备的端口标识，第一设备可以向控制设备发送第一设备的端口标识。第一设备的端口标识可以作为TSN管道信息的一部分保存到控制网元、NRF网元或其他控制面网元。控制网元可以只保存第一信息以及发送端和接收端的设备标识。
在一种可能的实施方式中，第一设备还可以通过第一设备的端口标识对应的端口向第二设备发送SRP请求消息。其中，SRP请求消息用于触发数据流的创建，此时，第一设备为发送端，第二设备为接收端。
类似的，对于作为接收端的第二设备而言，第二设备可以通过第二设备的端口标识对应的端口向第一设备发送SRP响应消息。其中，SRP响应消息用于对来自第一设备的SRP请求消息进行响应。
本申请实施例提供的通信方法，分别作为发送端和接收端的AN网元和UPF网元可以获知通过数据流通信时所采用的端口的端口标识，并指示该端口标识。当后续AN网元和UPF网元根据该端口标识创建可靠时延的数据流或者会话时，AN网元和UPF网元之间通过TSN管道来 传输数据流或会话，不会存在基于IP路由转发报文时转发路径的不确定性，从而保证AN网元与UPF网元之间报文传输的时延和可靠性。
本申请实施例以AN网元为第一设备，UPF网元为第二设备为例进行说明，可以理解，AN网元也可以为第二设备，UPF网元也可以为第一设备。
图12-图16为图11A和图11B所示的通信方法的几种实现方式。在图12的实现方式中，控制设备可以从发送端和接收端接收发送端的端口标识、接收端的端口标识、第一指示信息和第二指示信息，然后执行图8中方式一或方式二的过程以建立TSN管道。在图13的实现方式中，控制设备可以根据配置、策略或编排获取第一指示信息和第二指示信息，并根据第一指示信息和第二指示信息确定通过数据流通信的发送端和接收端，然后执行图8中方式一或方式二的过程以建立TSN管道。在图14的实现方式中，控制设备可以从发送端和接收端接收发送端的端口标识、接收端的端口标识，根据配置、策略或编排获取第一指示信息和第二指示信息，或者，从SMF网元接收第一指示信息和第二指示信息，然后执行图8中方式一或方式二的过程以建立TSN管道。在图15的实现方式中，控制设备可以从SMF网元接收发送端的设备标识、接收端的设备标识、第一指示信息和第二指示信息，从CUC网元接收可靠时延传输网络的拓扑信息，根据发送端的设备标识、接收端的设备标识和拓扑信息获得发送端的端口标识、接收端的端口标识，然后执行图8中方式一或方式二的过程以建立TSN管道。在图16的实现方式中，控制设备向发送端和接收端端口标识，指示发送端和接收端端口标识根据端口标识向CUC网元进行注册以建立TSN管道。
如图12所示，如果通过图8中所示的方式一来创建TSN管道，该方法可以包括步骤S1201-S1213。如果通过图8中所示的方式二来创建转发通道，该方法可以包括步骤S1201-S1206和S1214-S1219。
S1201、AN网元获取AN网元的端口标识和第一指示信息。
AN网元上可以配置有第一指示信息和AN网元在TSN网络中的端口标识，AN网元根据配置获取第一指示信息和AN网元在TSN网络中的端口标识。
S1202、UPF网元获取UPF网元的端口标识和第二指示信息。
UPF网元上可以配置有第二指示信息和UPF网元在TSN网络中的端口标识，UPF网元根据配置获取第二指示信息和UPF网元在TSN网络中的端口标识。
第一指示信息用于指示AN网元为发送端，第二指示信息用于指示UPF网元为接收端；或者，第一指示信息用于指示AN网元为接收端，第二指示信息用于指示UPF网元为发送端。即AN网元和UPF网元中的一者被配置为发送端另一者被配置为接收端。
在一种可能的实施方式中，AN网元和/或UPF网元获取第一信息。AN网元和/或UPF网元上可以配置有第一信息，AN网元和/或UPF网元根据配置获取第一信息。
在一种可能的实施方式中，AN网元和/或UPF网元获取数据流的带宽信息。AN网元和/或UPF网元上可以配置有数据流的带宽信息，AN网元和/或UPF网元根据配置获取数据流的带宽信息。
在一种可能的实施方式中，AN网元和/或UPF网元获取TSN管道对应的IP地址。AN网元和/或UPF网元上还可以配置有TSN管道对应的IP地址，AN网元和/或UPF网元根据配置获取TSN管道对应的IP地址。TSN管道对应的IP地址用于指示GTP-U管道(TSN管道中的一种) 与GTP-U隧道的IP地址之间的对应关系，后续创建可靠时延的数据流或者会话时，分配TSN管道以及对应的GTP-U隧道的IP地址。如果TSN管道为二层管道，则不需要获取TSN管道对应的IP地址。
关于第一信息、TSN管道的描述，具体见本申请前面所述实施例，在此不再重复。
S1203、AN网元向控制设备发送AN网元的端口标识以及第一指示信息。
相应地，控制设备从AN网元接收AN网元的端口标识和第一指示信息。
在一种可能的实施方式中，AN网元可以向控制设备发送第一注册请求消息，在该第一注册请求消息中包括AN网元的端口标识以及第一指示信息。相应地，控制设备从AN网元接收第一注册请求消息。
该步骤实现了AN网元显式地向控制设备发送指示AN网元的端口标识的第二信息。
S1204、UPF网元向控制设备发送UPF网元的端口标识以及第二指示信息。
相应地，控制设备从UPF网元接收UPF网元的端口标识和第二指示信息。
在一种可能的实施方式中，UPF网元可以向控制设备发送第二注册请求消息，在该第二注册请求消息中包括UPF网元的端口标识以及第二指示信息。相应地，控制设备从UPF网元接收第二注册请求消息。
在一种可能的实施方式中，第一注册请求消息和/或第二注册请求消息中还可以包括第一信息。相应地，控制设备可以从AN网元和/或UPF网元接收第一信息。
在一种可能的实施方式中，第一注册请求消息和/或第二注册请求消息中还可以包括数据流的带宽信息。相应地，控制设备可以从AN网元和/或UPF网元接收数据流的带宽信息。
在一种可能的实施方式中，第一注册请求消息和/或第二注册请求消息中还可以包括TSN管道对应的IP地址。相应地，控制设备可以从AN网元和/或UPF网元接收TSN管道对应的IP地址。
该步骤实现了UPF网元显式地向控制设备发送指示UPF网元的端口标识的第二信息。
S1205、控制设备根据第一指示信息和第二指示信息确定通过数据流通信的发送端和接收端。
也就是说，控制设备可以根据第一指示信息和第二指示信息确定AN网元和UPF网元中的一者为发送端，另一者为接收端。
在一种可能的实施方式中，控制设备可以根据配置、策略或编排获取第一信息。
控制设备可以保存上述数据流与AN网元及UPF网元的对应关系。
S1206、控制设备获取该数据流的带宽信息。
在一种可能的实施方式中，控制设备可以从AN网元和/或UPF网元接收数据流的带宽信息。
在一种可能的实施方式中，控制设备可以根据配置、策略或编排获取数据流的带宽信息。
S1207、控制设备向发送端发送数据流信息。
相应地，发送端从控制设备接收数据流信息。可选的，控制设备向发送端发送数据流的带宽信息，相应地，发送端从控制设备接收数据流的带宽信息。
其中，图12中的步骤S1207-S1213、S1216、S1219和S1223以AN网元作为发送端，UPF网元作为接收端为例进行描述。当UPF网元作为发送端，AN网元作为接收端时同理，不再赘 述。
数据流信息可以包括发送端的端口标识或者可靠时延传输网络标识；其中，可靠时延传输网络标识可以与发送端的端口标识相关联。可靠时延传输网络标识可来自AN网元或UPF网元。
如果AN网元为发送端，则控制设备向AN网元发送数据流信息和数据流的带宽信息，数据流信息可以包括AN网元的端口标识或者可靠时延传输网络标识。如果UPF网元为发送端，则控制设备向UPF网元发送数据流信息和数据流的带宽信息，数据流信息可以包括UPF网元的端口标识或者可靠时延传输网络标识。
在一种可能的实施方式中，控制设备还可以向发送端发送第一信息。相应地，发送端从控制设备接收第一信息。
在一种可能的实施方式中，如果AN网元为发送端，控制设备可以向AN网元发送第一指示信息。相应地，AN网元从控制设备接收第一指示信息。如果UPF网元为发送端，控制设备可以向UPF网元发送第二指示信息。相应地，UPF网元从控制设备接收第二指示信息。
S1208、发送端获取发送端的端口标识。
如果数据流信息中包括可靠时延传输网络标识，则发送端从控制设备接收可靠时延传输网络标识，发送端可以根据可靠时延传输网络标识获取发送端的端口标识。或者，如果数据流信息中包括发送端的端口标识，则发送端从控制设备接收发送端的端口标识。
S1209、发送端通过发送端的端口标识对应的端口向接收端发送SRP请求消息。
该SRP请求消息用于触发数据流的创建。该步骤实现了发送端隐式地向接收端发送指示发送端的端口标识的第二信息。
可选的，该方法可以包括步骤S1210-S1212:
S1210、控制设备向接收端发送数据流信息。
相应地，接收端从控制设备接收数据流信息。可选的，控制设备向接收端发送数据流的带宽信息，相应地，接收端从控制设备接收数据流的带宽信息。
数据流信息可以包括接收端的端口标识或者可靠时延传输网络标识；其中，可靠时延传输网络标识可以与接收端的端口标识相关联。
如果AN网元为接收端，则控制设备向AN网元发送数据流信息和数据流的带宽信息，数据流信息可以包括AN网元的端口标识或者可靠时延传输网络标识；如果UPF网元为接收端，则控制设备向UPF网元发送数据流信息和数据流的带宽信息，数据流信息可以包括UPF网元的端口标识或者可靠时延传输网络标识。
在一种可能的实施方式中，控制设备还可以向接收端发送第一信息。相应地，接收端从控制设备接收第一信息。
在一种可能的实施方式中，如果AN网元为接收端，控制设备可以向AN网元发送第一指示信息。相应地，AN网元从控制设备接收第一指示信息。如果UPF网元为接收端，控制设备可以向UPF网元发送第二指示信息。相应地，UPF网元从控制设备接收第二指示信息。
需要说明的是，步骤S1209与S1210没有先后执行顺序。
S1211、接收端获取接收端的端口标识。
如果数据流信息中包括可靠时延传输网络标识，则接收端从控制设备接收可靠时延传输 网络标识，接收端可以根据可靠时延传输网络标识获取接收端的端口标识。或者，如果数据流信息中包括接收端的端口标识，则接收端从控制设备接收接收端的端口标识。
S1212、接收端通过接收端的端口标识对应的端口向发送端发送SRP响应消息。
该SRP响应消息用于对来自发送端的SRP请求消息进行响应。接收端可以根据数据流信息或配置信息，获取SRP请求消息请求创建的数据流是自己需要接收的流，向发送端发送SRP响应消息。该步骤实现了接收端隐式地向发送端发送指示接收端的端口标识的第二信息。
需要说明的是，步骤S1212的执行顺序在步骤S1209之后。
S1213、发送端向控制设备发送第一信息和/或SRP响应消息的源MAC地址。
发送端接收到SRP响应消息后，可以向控制设备发送指示信息，以指示发送端接收到SRP响应消息，表示数据流创建完成。指示信息可以包括第一信息和/或SRP响应消息的源MAC地址。
S1214、控制设备向CUC网元发送数据流信息和数据流的带宽信息。
在一种可能的实施方式中，控制设备还可以向CUC网元发送第一信息。
S1215、CUC网元向CNC网元请求创建数据流。
在一种可能的实施方式中，如果步骤S1213中，控制设备未向CUC网元发送第一信息，CUC网元可以为数据流分配第一信息。
CUC网元可以向CNC网元发送第一信息以请求创建数据流。
S1216、CNC网元生成数据流的路径信息及调度策略，并向AN网元和UPF网元发送数据流的路径信息及调度策略。
数据流的路径信息可以指示数据流的转发路径。
调度策略可以包括例如发送端的发包时隙和/或接收端的收包时隙。
S1217、CNC网元向CUC网元发送数据流的路径信息和调度策略。
关于步骤S1215-S1217可以参照IEEE 802.1qcc第43.1.3.3章描述，此处不再重复。
S1218、CUC网元向控制设备发送数据流的路径信息。
如果步骤S1215中由CUC网元为数据流分配第一信息，CUC网元可以向控制设备发送第一信息。相应地，控制设备从CUC网元接收第一信息。
在一种可能的实施方式中，CUC网元可以向控制设备发送调度策略。
S1219、控制设备向发送端和/或接收端发送第一信息和/或带宽信息。
在一种可能的实施方式中，控制设备可以向第一设备发送第一指示信息，和/或，向第二设备发送第二指示信息。
在一种可能的实施方式中，控制设备可以向发送端和接收端发送调度策略。
该步骤S1219可以指示发送端和接收端预留缓存资源。
可选的，该方法还可以包括步骤S1220-S1223：
S1220、控制设备保存TSN管道信息。
TSN管道信息可以根据数据流的相关信息得到，TSN管道信息可以包括第一信息、AN网元和/或UPF网元的设备标识、AN网元的端口标识、UPF网元的端口标识、可靠时延传输网络标识、GTP-U隧道的源IP地址、目的IP地址中的至少一项。AN网元和/或UPF网元的设备标识可以从SMF网元获得，或者由控制设备根据配置、策略或编排获得。GTP-U隧道的源IP地 址和/或目的IP地址可以从AN网元或UPF网元获得，或者由控制设备根据配置、策略或编排获得。
例如，控制设备可以保存(AN1、UPF1、012a.3322.00af)，表示AN1网元与UPF1网元之间有TSN管道，第一信息中的流标识为012a.3322.00af。该信息可用于后续SMF网元创建数据流或会话时选择UPF网元的依据。或者记录(012a.3322.00af)，表示第一信息中的流标识为012a.3322.00af。该信息可用于后续创建数据流或会话时为用户分配带宽。
S1221、控制设备向NRF网元发送发送端与接收端之间的可达信息。
可达信息用于指示发送端与接收端位于同一可靠时延传输网络中。
在一种可能的实施方式中，控制设备可以向NRF网元发送TSN管道信息。
例如，控制设备可以向NRF网元发送(AN1，UPF1)，表示AN1网元和UPF1网元在TSN网络内可达，能够支持可靠时延传输。或者，控制设备可以向NRF网元发送(AN1、UPF1、012a.3322.00af、5ms、1G)，表示AN1网元与UPF1网元之间有带宽为1G的TSN管道，第一信息中的流标识为012a.3322.00af，最大传输时延为5ms；或者，控制设备可以向NRF网元发送{(AN1，p1)、(UPF1，p2)、012a.3322.00af、5ms、1G}，表示AN1网元的端口p1与UPF1网元的端口p2之间有带宽为1G的TSN管道，第一信息中的流标识为012a.3322.00af，最大传输时延为5ms。
S1222、NRF网元保存发送端与接收端之间的可达信息。
在一种可能的实施方式中，NRF网元可以保存TSN管道信息。
上述信息可用于后续为用户创建包含可靠时延用户流或会话时作为选择UPF网元的依据。
S1223、控制设备向AN网元和/UPF网元发送TSN管道信息。
AN网元和/或UPF网元在接收到上述信息后，保存上述信息，用于后续为用户创建包含可靠时延用户流的会话时作为分配TSN管道的依据。
如图13中所示，该通信方法包括步骤S1301-S1319：
S1301、控制设备根据配置、策略或编排获取第一指示信息和第二指示信息，并根据第一指示信息和第二指示信息确定通过数据流通信的发送端和接收端。
在一种可能的实施方式中，控制设备可以根据配置、策略或编排获取第一信息。
在一种可能的实施方式中，控制设备可以根据配置、策略或编排获取TSN管道对应的IP地址。
控制设备可以保存上述数据流与AN网元及UPF网元的对应关系。
S1302、控制设备根据配置、策略或编排获取数据流的带宽信息。
步骤S1303-S1319可参考图12中步骤S1207-S1223的描述，此处不再重复。
如图14中所示，该通信方法包括步骤S1401-S1423：
S1401、AN网元获取AN网元的端口标识。
AN网元上可以配置有AN网元的端口标识，AN网元根据配置获取AN网元的端口标识。
在一种可能的实施方式中，AN网元可以获取数据流的带宽信息。
AN网元上还可以配置有数据流的带宽信息，AN网元根据配置获取数据流的带宽信息。
S1402、UPF网元获取UPF网元的端口标识。
UPF网元上可以配置有UPF网元的端口标识，UPF网元根据配置获取UPF网元的端口标识。
在一种可能的实施方式中，UPF网元可以获取数据流的带宽信息。
UPF网元上还可以配置有数据流的带宽信息，UPF网元根据配置获取数据流的带宽信息。
S1403、AN网元向控制设备发送AN网元的端口标识。
相应地，控制设备从AN网元接收AN网元的端口标识。
在一种可能的实施方式中，AN网元可以向控制设备发送数据流的带宽信息。相应地，控制设备可以从AN网元接收数据流的带宽信息。
在一种可能的实施方式中，AN网元可以向控制设备发送第一注册请求消息，在该第一注册请求消息中包括AN网元的端口标识。可选的，在该第一注册请求消息中还可以包括数据流的带宽信息。相应地，控制设备从AN网元接收第一注册请求消息。
S1404、UPF网元向控制设备发送UPF网元的端口标识。
相应地，控制设备从UPF网元接收UPF网元的端口标识。
在一种可能的实施方式中，UPF网元可以向控制设备发送第二注册请求消息，在该第二注册请求消息中包括UPF网元的端口标识。可选的，在该第二注册请求消息中还可以包括数据流的带宽信息。相应地，控制设备从UPF网元接收第二注册请求消息。
S1405、控制设备获取第一指示信息和第二指示信息，并根据第一指示信息和第二指示信息确定通过数据流通信的发送端和接收端。
第一指示信息用于指示AN网元为发送端，第二指示信息用于指示UPF网元为接收端；或者，第一指示信息用于指示AN网元为接收端，第二指示信息用于指示UPF网元为发送端。需要说明的是，第一指示信息和第二指示信息可以为一个指示信息，该指示信息指示AN网元和UPF网元中的一者为发送端另一者为接收端。
在一种可能的实施方式中，控制设备可以根据配置、策略或编排获取第一指示信息和第二指示信息。
在一种可能的实施方式中，控制设备可以从SMF网元接收第一指示信息和所述第二指示信息。
例如，控制设备可以从SMF网元接收第一指示信息和第二指示信息，第一指示信息用于指示AN网元为发送端，第二指示信息用于指示UPF网元为接收端，则控制设备根据第一指示信息可以确定AN网元为发送端，根据第二指示信息可以确定UPF网元为接收端。
在一种可能的实施方式中，控制设备可以根据配置、策略或编排获取第一信息。
控制设备可以保存上述数据流与AN网元及UPF网元的对应关系。
S1406、控制设备根据配置、策略或编排获取该数据流的带宽信息。
步骤S1407-S1423可参考图12中步骤S1207-S1223的描述，此处不再重复。
如图15中所示，该通信方法包括步骤S1501-S1522。
S1501、控制设备从SMF网元接收第一指示信息和第二指示信息，并根据第一指示信息和第二指示信息确定通过数据流通信的发送端和接收端。
S1502、控制设备根据配置、策略或编排获取该数据流的带宽信息。
S1503、控制设备从SMF网元接收发送端的设备标识、接收端的设备标识。
S1504、控制设备从CUC网元接收可靠时延传输网络的拓扑信息。
拓扑信息中包括发送端的设备标识与发送端的端口标识之间的对应关系，以及，接收端 的设备标识与接收端的端口标识之间的对应关系。拓扑信息隐含的指示这些设备或端口在TSN网络内可达。
S1505、控制设备根据发送端的设备标识、接收端的设备标识以及拓扑信息获取发送端的端口标识以及接收端的端口标识。
在一种可能的实施方式中，控制设备可以根据配置、策略或编排获取第一信息。
控制设备可以保存上述数据流与AN网元及UPF网元的对应关系。
步骤S1506-S1522可参考图12中步骤S1207-S1223的描述，此处不再重复。
如图16中所示，该通信方法包括步骤S1601-S1616。
S1601、控制设备根据第一指示信息和第二指示信息确定通过数据流通信的发送端和接收端，并获取该数据流的带宽信息。
可选的，控制设备可以为TSN管道分配TSN管道标识，TSN管道标识的作用是使得核心网控制面网元不需要关注和保存第一信息，而由TSN网络自己管理和维护第一信息，后续核心网控制面网元与AN网元及UPF网元交互时，直接使用TSN管道标识来指示对应的TSN管道。
该步骤可以参照图12中的步骤S1201-S1206，或者，图13中的步骤S1301-S1302，或者，图14中的步骤S1401-S1406，或者，图15中的步骤S1501-S1502，此处不再重复。
S1602、控制设备向发送端发送数据流信息。
可选的，控制设备可以向发送端发送TSN管道标识。
该步骤参照图12中的步骤S1207，在此不再重复。
S1603、发送端获取发送端的端口标识。
该步骤参照图12中的步骤S1208，在此不再重复。
S1604、发送端向CUC网元发送发送端的端口标识。
该发送端的端口标识用于向CUC网元注册发送端，以创建数据流。
S1605、控制设备向接收端发送数据流信息和数据流的带宽信息。
可选的，控制设备可以向接收端发送TSN管道标识。
该步骤参照图12中的步骤S1210，在此不再重复。
S1606、接收端获取接收端的端口标识。
该步骤参照图12中的步骤S1211，在此不再重复。
S1607、接收端向CUC网元发送接收端的端口标识。
该接收端的端口标识用于向CUC网元注册接收端，以请求创建数据流。
步骤S1608-S1610参照图12的S1215-S1217，在此不再重复。
S1611、CUC网元向发送端和/或接收端发送第一信息。
S1612、发送端和/或接收端向控制设备发送第一信息。
该步骤是可选的。
S1613、控制设备保存TSN管道信息。
与图12中步骤S1220相比，控制设备还要保存步骤S1601中所述的TSN管道标识。其他内容参照图12中步骤S1220，在此不再重复。
步骤S1614-S1616可参考图12中步骤S1221-S1223的描述，在此不再重复。
下面结合具体示例对上述过程进行说明，创建的TSN管道不与GTP-U隧道的IP地址绑定， NRF网元保存AN网元与UPF网元之间的可达信息，控制设备保存TSN管道信息，AN网元和UPF网元保存TSN管道与发送端的端口标识和接收端的端口标识的对应关系。如图17中所示，上述通信方法可以包括：
S1701、AN1网元上配置设备标识AN1和/或端口标识AN1_p1、AN1_p2。
S1702、UPF1网元上配置设备标识UPF1和/或端口标识UPF1_p3、UPF1_p4。
S1703、AN1网元向控制设备发送设备标识AN1和/或端口标识AN1_p1、AN1_p2。
S1704、UPF1网元向控制设备发送设备标识UPF1和/或端口标识UPF1_p3、UPF1_p4。
S1705、控制设备向CUC网元发送AN1网元的设备标识AN1和/或端口标识AN1_p1、AN1_p2，以及UPF1网元的设备标识UPF1和/或端口标识UPF1_p3、UPF1_p4。
该步骤用于向CUC网元请求可靠时延传输网络的拓扑信息，以及获得AN网元和UPF网元之间的可达信息，例如端口之间的可达信息(AN1_p1,UPF1_p3)、(AN1_p2,UPF1_p4)等。可达信息用于指示AN网元与UPF网元位于同一可靠时延传输网络中。控制设备还可以确定AN1网元与UPF1网元之间支持可靠时延传输。
可选的，控制设备也可以根据配置获得上述信息。当控制设备根据配置获得上述信息时，上述步骤S1701-S1704可以不执行。
S1706、控制设备向NRF网元发送AN1网元和UPF1网元之间的可达信息。
例如端口之间的可达信息(AN1_p1,UPF1_p3)、(AN1_p2,UPF1_p4)等。
S1707、NRF网元保存AN1网元和UPF1网元之间的可达信息。
之后在用户创建会话时(例如用户从AN1网元接入，AN1网元作为发送端时)，SMF网元确定UPF1网元，并向UPF1网元发起会话创建请求。可选的，UPF1网元接收到会话创建请求后，执行图12中的过程S1204，并向控制设备发送指示AN1网元为发送端的第一指示信息以及指示UPF1网元为接收端的第二指示信息。需要说明的是，第一指示信息和第二指示信息也可以为一个指示信息。即该指示信息用于指示AN1网元为发送端，UPF1网元为接收端。本申请不限定上述指示信息的具体形式。
S1708、控制设备根据第一指示信息和第二指示信息确定通过数据流通信的发送端和接收端，并获取该数据流的带宽信息。
控制设备可以根据配置、策略或编排或者步骤S1707中所述的第一指示信息和第二指示信息，确定AN1网元的端口AN1_p1作为发送端，UPF1网元的端口UPF1_p2作为接收端。可以根据配置、策略或编排获取AN1网元与UPF1网元之间数据流的带宽信息等。
S1709、控制设备获取第一信息。
第一信息包括流标识012a.3322.00af。
S1710、控制设备指示CUC网元创建数据流。
例如，数据流的路径信息可以包括(012a.3322.00af，AN1_p1，AN1_p1，1G)，其中，012a.3322.00af为第一信息，AN1_p1为发送端的端口标识，UPF1_p2为接收端的端口标识，1G为数据流的带宽信息。
S1711、CUC网元向控制设备发送数据流的路径信息。
发送的数据流的路径信息可以包括(012a.3322.00af，AN1_p1，VLAN_100，CoS_3，UPF1_p2，VLAN_200，CoS_3，1G)，其中，012a.3322.00af为第一信息，AN1_p1为发送端的端口标识， VLAN_100表示发送端VLAN为100，CoS_3表示发送端CoS为3，UPF1_p2为接收端的端口标识，VLAN_200表示接收端VLAN为200，CoS_3表示接收端CoS为3，1G为数据流的带宽信息。
S1712、控制设备保存TSN管道信息。
控制设备可以根据数据流的路径信息得到TSN管道信息。
控制设备可以根据数据流的路径信息得到与UPF网元相关的TSN管道信息。
例如，可以从数据流的路径信息中删掉AN侧的VLAN、CoS信息。则与UPF网元相关的TSN管道信息可以包括：(012a.3322.00af，AN1_p1，UPF1_p2，VLAN_200，CoS_3,1G),其中，012a.3322.00af为第一信息中包括的流标识；AN1_p1为发送端的端口标识，UPF1_p2为接收端的端口标识；VLAN_200表示接收端VLAN为200，CoS_3表示接收端CoS为3；1G为数据流的带宽信息。
控制设备可以根据数据流的路径信息得到与AN网元相关的TSN管道信息。
例如，可以从数据流的路径信息中删掉UPF侧的VLAN、CoS信息。则与AN网元相关的TSN管道信息包括：(012a.3322.00af，AN1_p1，VLAN_100，CoS_3，UPF1_p2，1G)，其中，012a.3322.00af为第一信息中包括的流标识；AN1_p1为发送端的端口标识；VLAN_100表示发送端VLAN为100；CoS_3表示发送端CoS为3；UPF1_p2为接收端的端口标识；1G为数据流的带宽信息。
S1713、控制设备向UPF网元发送与UPF网元相关的TSN管道信息。
S1714、控制设备向AN网元发送与AN网元相关的TSN管道信息。
之后AN及UPF能够根据TSN管道信息为用户创建会话。
下面结合具体示例对上述过程进行说明，如图18中所示，上述通信方法可以包括：
S1801、AN1网元上配置设备标识、第一指示信息、端口标识、第一信息。
换句话说，AN1上的配置信息包括设备标识、第一指示信息、端口标识、第一信息。
可选的，AN1网元上可以配置对应的IP地址。
例如，AN1网元上配置:AN1，(talker，AN1_p1，012a.3322.00af，10.10.10.2),(listener，AN1_p1，012a.3322.00ae，10.10.10.2)。其中，AN1为设备标识，AN1_p1为端口标识，talker和listener为第一指示信息，012a.3322.00af和012a.3322.00ae为第一信息，10.10.10.2为AN1网元对应的IP地址。(talker，AN1_p1，012a.3322.00af，10.10.10.2)表示当AN1网元作为发送端时，通过AN1_p1对应的端口发送数据流，该数据流由012a.3322.00af来标识，AN1网元发送数据流的IP地址为10.10.10.2。(listener，AN1_p1，012a.3322.00ae，10.10.10.2)表示当AN1网元作为接收端时，通过AN1_p1对应的端口接收数据流，该数据流由012a.3322.00ae来标识，AN1网元接收数据流的IP地址为10.10.10.2。
S1802、UPF1网元上配置设备标识、第二指示信息、端口标识、第一信息。
换句话说，UPF1上的配置信息包括设备标识、第一指示信息、端口标识、第一信息。
可选的，UPF1网元上可以配置对应的IP地址。
例如UPF1网元上配置:UPF1，(talker，UPF1_p3，012a.3322.00ae，10.10.10.3),(listener，UPF1_p3，012a.3322.00af，10.10.10.3)。其中，UPF1为设备标识，UPF1_p3为端口标识，talker和listener为第二指示信息，012a.3322.00af和012a.3322.00ae为第一信息，10.10.10.3为UPF1网元对应的IP地址。(talker，UPF1_p3，012a.3322.00ae， 10.10.10.3)表示当UPF1作为发送端时，通过UPF1_p3对应的端口发送数据流，该数据流由012a.3322.00ae来标识，UPF1网元发送数据流的IP地址为10.10.10.3。(listener，UPF1_p3，012a.3322.00af，10.10.10.3)表示当UPF1网元作为接收端时，通过UPF1_p3对应的端口接收数据流，该数据流由012a.3322.00af来标识，UPF1网元接收数据流的IP地址为10.10.10.3。
S1803、AN1网元向控制设备发送AN1网元的配置信息。
可选的，AN1网元还可以向控制设备发送数据流的带宽信息、TSN网络信息，例如VLAN、CoS等。
上述信息可以携带在第一注册信息中。
S1804、UPF1网元向控制设备发送UPF1网元的配置信息。
可选的，UPF1网元可以向控制设备发送数据流的带宽信息、TSN网络信息，例如VLAN、CoS等。
上述信息可以携带在第二注册信息中。
需要说明的是，步骤S1801-S1804是可选的步骤。控制设备可以根据配置、策略或编排获取上述信息。
S1805、控制设备根据第一指示信息和第二指示信息确定通过数据流通信的发送端和接收端，并获取该数据流的带宽信息。
控制设备可以根据来自AN1网元和UPF1网元的注册信息获取发送端或接收端。或者，控制设备可以根据配置、策略或编排获取第一指示信息和第二指示信息，进而获取发送端或接收端。例如，配置、策略或编排中可以包括：第一信息为012a.3322.00af，对应的发送端为AN1_p1所标识的端口，对应的接收端为UPF1_p3所标识的端口。
控制设备可以根据来自AN1网元和UPF1网元的注册信息获取数据流的带宽信息。或者，控制设备可以根据配置、策略或编排获取数据流的带宽信息。如果是由控制设备根据配置、策略或编排获取数据流的带宽信息(例如1G)，则由控制设备请求AN网元和UPF网元分别为对应的数据流预留带宽。
S1806、控制设备指示CUC网元创建数据流。
例如，数据流的路径信息可以包括(AN1_p1，UPF1_p3，012a.3322.00a，1G)，其中，AN1_p1为发送端的端口标识，UPF1_p3为接收端的端口标识，012a.3322.00af为第一信息、1G为数据流的带宽信息。
如果来自AN网元和UPF网元的注册信息中包括TSN网络信息，例如VLAN、CoS等，控制设备可以在向CUC网元发送的请求消息中包括TSN网络信息。或者，也可由CUC网元或CNC网元生成相关信息。
S1807、CUC网元向控制设备发送数据流的路径信息。
发送的数据流的路径信息可以包括(012a.3322.00af，AN1_p1，VLAN_100，CoS_3，UPF1_p2，VLAN_200，CoS_3，1G)，其中，012a.3322.00af为第一信息，AN1_p1为发送端的端口标识,VLAN_100表示发送端VLAN为100，CoS_3表示发送端CoS为3，UPF1_p2为接收端的端口标识，VLAN_200表示接收端VLAN为200，CoS_3表示接收端CoS为3，1G为数据流的带宽信息。
S1808、控制设备保存TSN管道信息。
TSN管道信息可以根据上述路径信息得到。
例如，TSN管道信息可以包括(012a.3322.00af，AN1_p1，VLAN_100，CoS_3，UPF1_p2，VLAN_200，CoS_3，1G)，其中，012a.3322.00af为第一信息，AN1_p1为发送端的端口标识,VLAN_100表示发送端VLAN为100，CoS_3表示发送端CoS为3，UPF1_p2为接收端的端口标识，VLAN_200表示接收端VLAN为200，CoS_3表示接收端CoS为3，1G为数据流的带宽信息。
S1809、控制设备向NRF网元发送AN1网元和UPF1网元之间的可达信息和/或TSN管道信息。
例如，AN1和UPF1之间的可达信息可以包括(AN1_p1,UPF1_p3)，其中，AN1_p1为发送端的端口标识,UPF1_p2为接收端的端口标识。
S1810、NRF网元保存AN1网元和UPF1网元之间的可达信息和/或TSN管道信息。
S1811、控制设备向AN1网元和/或UPF1网元发送全部或部分TSN管道信息。
例如发送的TSN管道信息可以包括(012a.3322.00af,AN1_p1,VLAN_100,CoS_3,10.10.10.2,UPF1_p3,VLAN_200,CoS_3,10.10.10.3,1G)，其中，012a.3322.00af为第一信息，AN1_p1为发送端的端口标识,VLAN_100表示发送端VLAN为100，CoS_3表示发送端CoS为3，10.10.10.2为发送端的IP地址，UPF1_p2为接收端的端口标识，VLAN_200表示接收端VLAN为200，CoS_3表示接收端CoS为3，10.10.10.3为接收端的IP地址，1G为数据流的带宽信息。
本申请实施例还提供一种通信装置，可以用于执行上述方法中控制设备的功能。本申请实施例可以根据上述方法示例对通信装置进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请中对模块的划分是示意性的，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。
在采用对应各个功能划分各个功能模块的情况下，图19示出了上述实施例中所涉及的通信装置的一种可能的结构示意图，通信装置19可以包括：确定单元1911、获取单元1912、发送单元1913、接收单元1914。上述各单元用于支持通信装置执行图11A-18中任一附图中控制设备的相关方法。本申请提供的通信装置用于执行上文所提供的对应的方法，因此，其相应的特征和所能达到的有益效果可参考上文所提供的对应的方法中的有益效果，此处不再赘述。需要说明的是，上述单元是可选的。示例性的，通信装置19可以包括确定单元1911、获取单元1912、发送单元1913，可选的，通信装置19还可以包括接收单元1914。
示例性的，确定单元1911用于支持通信装置19执行图11A中的过程S1101，或图12中的过程S1205，或图13中的过程S1301，或图14中的过程S1405，或图15中的过程S1501，或图16中的过程S1601，或图17中的过程S1708，或图18中的过程S1805。获取单元1912用于支持通信装置19执行图11A中的过程S1102，或图12中的过程S1206，或图13中的过程S1301、S1302，或图14中的过程S1405、S1406，或图15中的过程S1502、S1505，或图16中的过程S1601，或图17中的过程S1708、S1709，或图18中的过程S1805。发送单元1913用于支持通信装置19执行图11A中的过程S1103，或图12中的过程S1207、S1210、S1214、S1219、S1221、S1223，或图13中的过程S1303、S1306、S1310、S1315、S1317、S1319，或 图14中的过程S1407、S1410、S1414、S1419、S1421、S1423，或图15中的过程S1506、S1509、S1513、S1518、S1520、S1522，或图16中的过程S1602、S1614、S1616，或图17中的过程S1705、S1706、S1710、S1713、S1714，或图18中的过程S1806、S1809、S1811；接收单元1914用于支持通信装置19执行图12中的过程S1203、S1204、S1213、S1218，或图13中的过程S1309、S1314，或图14中的过程S1404、S1413、S1418，或图15中的过程S1501、S1503、S1504、S1512、S1517，或图16中的过程S1612，或图17中的过程S1703、S1704、S1711，或图18中的过程S1803、S1804、S1807。其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
一种可能的实施方式中，确定单元1911，用于根据第一指示信息和第二指示信息确定通过数据流通信的发送端和接收端，其中，第一指示信息用于指示第一设备为发送端，第二指示信息用于指示第二设备为接收端，或者，第一指示信息用于指示第一设备为接收端，第二指示信息用于指示第二设备为发送端，数据流包括标识数据流的第一信息，第一信息用于指示发送端通过数据流发送数据，还用于指示接收端通过数据流接收数据。获取单元1912，用于获取数据流的带宽信息。发送单元1913，用于发送数据流信息，发送获取单元1912获取的带宽信息，其中，数据流信息用于指示确定单元1911确定的发送端的端口标识、确定单元确定的接收端的端口标识中的至少一项，发送端的端口标识、接收端的端口标识以及带宽信息用于数据流的创建。
一种可能的实施方式中，该通信装置还包括接收单元1914，用于从第一设备接收第一指示信息，和/或，从第二设备接收所述指示信息。
在一种可能的实施方式中，该通信装置还包括接收单元1914，用于从会话管理功能网元接收第一指示信息和第二指示信息。
在一种可能的实施方式中，发送单元1913还用于向第一设备发送第一指示信息，和/或，向第二设备发送第二指示信息。
在一种可能的实施方式中，该通信装置还包括接收单元1914，用于从发送端和/或接收端接收第一信息。
在一种可能的实施方式中，发送单元1913还用于向发送端和/或接收端发送第一信息。
在一种可能的实施方式中，该通信装置还包括接收单元1914，用于从发送端接收发送端的端口标识，从接收端接收接收端的端口标识。
在一种可能的实施方式中，数据流信息包括所述发送端的端口标识，发送单元1913具体用于：向发送端发送数据流信息，其中，数据流信息用于指示发送端通过发送端的端口标识对应的端口向接收端发送流预留协议SRP请求消息，SRP请求消息用于触发数据流的创建。
在一种可能的实施方式中，数据流信息包括可靠时延传输网络标识，其中，可靠时延传输网络标识与发送端的端口标识和接收端的端口标识关联。
在一种可能的实施方式中，该通信装置还包括接收单元1914，用于从发送端和/或接收端接收带宽信息。
在一种可能的实施方式中，发送单元1913具体用于向发送端和/或接收端发送带宽信息。
在一种可能的实施方式中，发送单元1913还用于向网络功能存储功能网元发送发送端与接收端之间的可达信息，可达信息用于指示发送端与接收端位于同一可靠时延传输网络中。
图20示出了上述实施例中所涉及的通信装置的又一种可能的结构示意图。通信装置20包括：处理模块2022、通信模块2023。可选的，通信装置20还可以包括存储模块2021。上述各模块用于支持通信装置执行图11A-18中任一附图中控制设备的相关方法。本申请提供的通信装置用于执行上文所提供的对应的方法，因此，其相应的特征和所能达到的有益效果可参考上文所提供的对应的方法中的有益效果，此处不再赘述。
一种可能的方式，处理模块2022用于对通信装置20的动作进行控制管理或者执行相应的处理功能，例如执行确定单元1911和获取单元1912的功能。通信模块2023用于支持通信装置20执行上述接收单元1914、发送单元1913的功能。存储模块2021用于存储通信装置的程序代码和/或数据。
其中，处理模块2022可以是处理器或控制器，例如可以是中央处理器(central processing unit，CPU)，通用处理器，数字信号处理器(digital signal processor，DSP)，专用集成电路(application-specific integrated circuit，ASIC)，现场可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信模块2023可以是网络接口或通信接口等。存储模块2021可以是存储器。
一种可能的方式，处理模块2022可以为图5中的处理器501，通信模块2023可以为图5中的通信接口504，存储模块2021可以为图5中的存储器503。其中，一个或多个程序被存储在存储器中，一个或多个程序包括指令，指令当被通信装置执行时使通信装置执行图11A-18中任一附图中控制设备的相关方法。
本申请实施例还提供一种通信装置，包括：处理器和存储器，所述存储器用于存储程序，所述处理器调用存储器存储的程序，以使通信装置执行图11A-18中任一附图中控制设备的相关方法。
本申请实施例还提供一种存储一个或多个程序的计算机存储介质，其上存储有计算机程序，该计算机程序被处理器执行时，使通信装置执行图11A-18中任一附图中控制设备的相关方法。
本申请实施例还提供了一种包含指令的计算机程序产品，当该计算机程序产品在通信装置上运行时，使得通信装置执行图11A-18中任一附图中控制设备的相关方法。
本申请实施例提供了一种芯片系统，该芯片系统包括处理器，用于支持通信装置执行图11A-18中任一附图中控制设备的相关方法。例如控制设备根据第一指示信息和第二指示信息确定通过数据流通信的发送端和接收端，其中，第一指示信息用于指示第一设备为发送端，第二指示信息用于指示第二设备为接收端，或者，第一指示信息用于指示第一设备为接收端，第二指示信息用于指示第二设备为发送端，数据流包括标识数据流的第一信息，第一信息用于指示发送端通过数据流发送数据，还用于指示接收端通过数据流接收数据；控制设备获取数据流的带宽信息；控制设备发送数据流信息，发送带宽信息，其中，数据流信息用于指示发送端的端口标识、接收端的端口标识中的至少一项，发送端的端口标识、接收端的端口标识以及带宽信息用于数据流的创建。在一种可能的设计中，该芯片系统还包括存储器，该存 储器，用于保存终端设备必要的程序指令和数据。该芯片系统，可以包括芯片，集成电路，也可以包含芯片和其他分立器件，本申请实施例对此不作具体限定。
其中，本申请提供的通信装置、计算机存储介质、计算机程序产品或者芯片系统均用于执行上文所提供的对应的方法，因此，其所能达到的有益效果可参考上文所提供的对应的方法中的有益效果，此处不再赘述。
可以理解的是，上述通信装置，可以是控制设备，也可以是可用于控制设备的部件(芯片或者电路等)。
本申请实施例还提供一种通信装置，可以用于执行上述方法中AN网元、第一设备或第二设备的功能。本申请实施例可以根据上述方法示例对通信装置进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请中对模块的划分是示意性的，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。
在采用对应各个功能划分各个功能模块的情况下，图21示出了上述实施例中所涉及的通信装置的一种可能的结构示意图，通信装置21可以包括：获取单元2111、发送单元2112、接收单元2113。上述各单元用于支持通信装置执行图11A-18中任一附图中AN网元的相关方法。本申请提供的通信装置用于执行上文所提供的对应的方法，因此，其相应的特征和所能达到的有益效果可参考上文所提供的对应的方法中的有益效果，此处不再赘述。需要说明的是，上述单元是可选的。示例性的，通信装置21可以包括获取单元2111、发送单元2112，可选的，通信装置21还可以包括接收单元2113。
示例性的，获取单元2111用于支持通信装置21执行图11B中的过程S1104，或图12中的过程S1201、S1208，或图13中的过程S1304，或图14中的过程S1401、S1408，或图15中的过程S1507，或图16中的过程S1603，或图17中的过程S1701，或图18中的过程S1801；发送单元2112用于支持通信装置21执行图11B中的过程S1105，或图12中的过程S1203、S1209，或图13中的过程S1305、S1309，或图14中的过程S1403、S1409、S1413，或图15中的过程S1508、S1512，或图16中的过程S1604、S1612，或图17中的过程S1703，或图18中的过程S1803；接收单元2113用于支持通信装置21执行图12中的过程S1207、S1212、S1216、S1219、S1223，或图13中的过程S1303、S1308、S1312、S1315、S1319，或图14中的过程S1407、S1412、S1416、S1419、S1423，或图15中的过程S1506、S1511、S1515、S1518、S1522，或图16中的过程S1602、S1609、S1611、S1616，或图17中的过程S1714，或图18中的过程S1811。其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
一种可能的实施方式中，获取单元2111，用于获取第一设备的端口标识，其中，第一设备为通过数据流通信的发送端或接收端，数据流包括标识数据流的第一信息，第一信息用于指示发送端通过数据流发送数据，还用于指示接收端通过数据流接收数据；发送单元2112，用于发送指示获取单元2111获取的第一设备的端口标识的第二信息，第一设备的端口标识用于数据流的创建。
一种可能的实施方式中，该通信装置21还可以包括接收单元2113，接收单元2113用于 从控制设备接收可靠时延传输网络标识；获取单元2111，具体用于根据接收单元2113接收的可靠时延传输网络标识获取第一设备的端口标识。
一种可能的实施方式中，该通信装置21还可以包括接收单元2113，接收单元2113用于从控制设备接收第一设备的端口标识。
在一种可能的实施方式中，发送单元2112，具体用于向控制设备发送第一设备的端口标识。
在一种可能的实施方式中，发送单元2112，还用于通过第一设备的端口标识对应的端口向第二设备发送流预留协议SRP请求消息，其中，SRP请求消息用于触发数据流的创建，第一设备为发送端，第二设备为接收端，或者，通过第一设备的端口标识对应的端口向第二设备发送SRP响应消息，其中，SRP响应消息用于对来自第二设备的SRP请求消息进行响应，SRP请求消息用于触发数据流的创建，第一设备为接收端，第二设备为发送端。
在一种可能的实施方式中，该通信装置21还可以包括接收单元2113，接收单元2113用于从控制设备接收第一指示信息，第一指示信息用于指示第一设备为发送端或接收端。
在一种可能的实施方式中，发送单元2112，还用于向控制设备发送第一指示信息，第一指示信息用于指示第一设备为发送端或接收端。
在一种可能的实施方式中，该通信装置21还可以包括接收单元2113，接收单元2113用于从控制设备接收数据流的带宽信息。
在一种可能的实施方式中，发送单元2112，还用于向控制设备发送数据流的带宽信息。
在一种可能的实施方式中，该通信装置21还可以包括接收单元2113，接收单元2113用于从控制设备接收第一信息。
在一种可能的实施方式中，发送单元2112，还用于向控制设备发送第一信息。
图22示出了上述实施例中所涉及的通信装置的又一种可能的结构示意图。通信装置22包括：处理模块2222、通信模块2223。可选的，通信装置22还可以包括存储模块2221。上述各模块用于支持通信装置执行图11A-18中任一附图中AN网元的相关方法。本申请提供的通信装置用于执行上文所提供的对应的方法，因此，其相应的特征和所能达到的有益效果可参考上文所提供的对应的方法中的有益效果，此处不再赘述。
一种可能的方式，处理模块2222用于对通信装置22的动作进行控制管理或者执行相应的处理功能，例如执行获取单元2111的功能。通信模块2223用于支持通信装置22执行上述接收单元2113、发送单元2112的功能。存储模块2221用于存储通信装置的程序代码和/或数据。
其中，处理模块2222可以是处理器或控制器，例如可以是中央处理器(central processing unit，CPU)，通用处理器，数字信号处理器(digital signal processor，DSP)，专用集成电路(application-specific integrated Circuit，ASIC)，现场可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信模块2223可以是收发器、收发电路、蓝牙、网络接口或通信接口等。存储模块2221可以是存储器。
一种可能的方式，处理模块2222可以为图4中的BBU 401中的处理器431，通信模块2223可以为图4中的RRU 402中的RF电路434，存储模块2221可以为图4中的BBU 401中的存储器432。其中，一个或多个程序被存储在存储器中，一个或多个程序包括指令，指令当被通信装置执行时使通信装置执行图11A-18中任一附图中AN网元的相关方法。
本申请实施例还提供一种通信装置，包括：处理器和存储器，所述存储器用于存储程序，所述处理器调用存储器存储的程序，以使通信装置执行图11A-18中任一附图中AN网元的相关方法。
本申请实施例还提供一种存储一个或多个程序的计算机存储介质，其上存储有计算机程序，该计算机程序被处理器执行时，使通信装置执行图11A-18中任一附图中AN网元的相关方法。
本申请实施例还提供了一种包含指令的计算机程序产品，当该计算机程序产品在通信装置上运行时，使得通信装置执行图11A-18中任一附图中AN网元的相关方法。
本申请实施例提供了一种芯片系统，该芯片系统包括处理器，用于支持通信装置执行图11A-18中任一附图中AN网元的相关方法。例如第一设备获取所述第一设备的端口标识，其中，所述第一设备为通过数据流通信的发送端或接收端，所述数据流包括标识所述数据流的第一信息，所述第一信息用于指示所述发送端通过所述数据流发送数据，还用于指示所述接收端通过所述数据流接收所述数据；所述第一设备发送指示所述第一设备的端口标识的第二信息，所述第一设备的端口标识用于所述数据流的创建。在一种可能的设计中，该芯片系统还包括存储器，该存储器，用于保存终端设备必要的程序指令和数据。该芯片系统，可以包括芯片，集成电路，也可以包含芯片和其他分立器件，本申请实施例对此不作具体限定。
其中，本申请提供的通信装置、计算机存储介质、计算机程序产品或者芯片系统均用于执行上文所提供的对应的方法，因此，其所能达到的有益效果可参考上文所提供的对应的方法中的有益效果，此处不再赘述。
可以理解的是，上述通信装置，可以是AN网元，也可以是可用于AN网元的部件(芯片或者电路等)。
本申请实施例还提供一种通信装置，可以用于执行上述方法中UPF网元、第一设备或第二设备的功能。本申请实施例可以根据上述方法示例对通信装置进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请中对模块的划分是示意性的，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。
在采用对应各个功能划分各个功能模块的情况下，图23示出了上述实施例中所涉及的通信装置的一种可能的结构示意图，通信装置23可以包括：获取单元2311、发送单元2312、接收单元2313。上述各单元用于支持通信装置执行图11A-18中任一附图中UPF网元的相关方法。本申请提供的通信装置用于执行上文所提供的对应的方法，因此，其相应的特征和所能达到的有益效果可参考上文所提供的对应的方法中的有益效果，此处不再赘述。需要说明的是，上述单元是可选的。示例性的，通信装置23可以包括获取单元2311、发送单元2312，可选的，通信装置23还可以包括接收单元2313。
示例性的，获取单元2311用于支持通信装置23执行图11B中的过程S1104，或图12中的过程S1202、S1211，或图13中的过程S1307，或图14中的过程S1402、S1411，或图15中的过程S1510，或图16中的过程S1606，或图17中的过程S1702，或图18中的过程S1802；发送单元2312用于支持通信装置23执行图11B中的过程S1105，或图12中的过程S1204、S1212，或图13中的过程S1308，或图14中的过程S1404、S1412，或图15中的过程S1511，或图16中的过程S1607、S1612，或图17中的过程S1704，或图18中的过程S1804；接收单元2313用于支持通信装置23执行图12中的过程S1209、S1210、S1216、S1219、S1223，或图13中的过程S1305、S1306、S1312、S1315、S1319，或图14中的过程S1409、S1410、S1416、S1419、S1423，或图15中的过程S1508、S1509、S1515、S1518、S1522，或图16中的过程S1605、S1609、S1611、S1616，或图17中的过程S1713，或图18中的过程S1811。其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
一种可能的实施方式中，获取单元2311，用于获取第一设备的端口标识，其中，第一设备为通过数据流通信的发送端或接收端，数据流包括标识数据流的第一信息，第一信息用于指示发送端通过数据流发送数据，还用于指示接收端通过数据流接收数据；发送单元2312，用于发送指示获取单元2311获取的第一设备的端口标识的第二信息，第一设备的端口标识用于数据流的创建。
一种可能的实施方式中，该通信装置23还可以包括接收单元2313，接收单元2313用于从控制设备接收可靠时延传输网络标识；获取单元2311，具体用于根据接收单元2313接收的可靠时延传输网络标识获取第一设备的端口标识。
一种可能的实施方式中，该通信装置23还可以包括接收单元2313，接收单元2313用于从控制设备接收第一设备的端口标识。
在一种可能的实施方式中，发送单元2312，具体用于向控制设备发送第一设备的端口标识。
在一种可能的实施方式中，发送单元2312还用于通过第一设备的端口标识对应的端口向第二设备发送流预留协议SRP请求消息，其中，SRP请求消息用于触发数据流的创建，第一设备为发送端，第二设备为接收端，或者，通过第一设备的端口标识对应的端口向第二设备发送SRP响应消息，其中，SRP响应消息用于对来自第二设备的SRP请求消息进行响应，SRP请求消息用于触发数据流的创建，第一设备为接收端，第二设备为发送端。
在一种可能的实施方式中，该通信装置23还可以包括接收单元2313，接收单元2313用于从控制设备接收第一指示信息，第一指示信息用于指示第一设备为发送端或接收端。
在一种可能的实施方式中，发送单元2312，还用于向控制设备发送第一指示信息，第一指示信息用于指示第一设备为发送端或接收端。
在一种可能的实施方式中，该通信装置23还可以包括接收单元2313，接收单元2313用于从控制设备接收数据流的带宽信息。
在一种可能的实施方式中，发送单元2312，还用于向控制设备发送数据流的带宽信息。
在一种可能的实施方式中，该通信装置23还可以包括接收单元2313，接收单元2313用于从控制设备接收第一信息。
在一种可能的实施方式中，发送单元2312，还用于向控制设备发送第一信息。
图24示出了上述实施例中所涉及的通信装置的又一种可能的结构示意图。通信装置24包括：处理模块2422、通信模块2423。可选的，通信装置24还可以包括存储模块2421。上述各模块用于支持通信装置执行图11A-18中任一附图中UPF网元的相关方法。本申请提供的通信装置用于执行上文所提供的对应的方法，因此，其相应的特征和所能达到的有益效果可参考上文所提供的对应的方法中的有益效果，此处不再赘述。
一种可能的方式，处理模块2422用于对通信装置24的动作进行控制管理或者执行相应的处理功能，例如执行获取单元2311的功能。通信模块2423用于支持通信装置24执行上述接收单元2313、发送单元2312的功能。存储模块2421用于存储通信装置的程序代码和/或数据。
其中，处理模块2422可以是处理器或控制器，例如可以是中央处理器(central processing unit，CPU)，通用处理器，数字信号处理器(digital signal processor，DSP)，专用集成电路(application-specific integrated Circuit，ASIC)，现场可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信模块2423可以是收发器、收发电路、蓝牙、网络接口或通信接口等。存储模块2421可以是存储器。
一种可能的方式，处理模块2222可以为图5中的处理器501，通信模块2223可以为图5中的通信接口504，存储模块2221可以为图5中的存储器503。其中，一个或多个程序被存储在存储器中，一个或多个程序包括指令，指令当被通信装置执行时使通信装置执行图11A-18中任一附图中UPF网元的相关方法。
本申请实施例还提供一种通信装置，包括：处理器和存储器，所述存储器用于存储程序，所述处理器调用存储器存储的程序，以使通信装置执行图11A-18中任一附图中UPF网元的相关方法。
本申请实施例还提供一种存储一个或多个程序的计算机存储介质，其上存储有计算机程序，该计算机程序被处理器执行时，使通信装置执行图11A-18中任一附图中UPF网元的相关方法。
本申请实施例还提供了一种包含指令的计算机程序产品，当该计算机程序产品在通信装置上运行时，使得通信装置执行图11A-18中任一附图中UPF网元的相关方法。
本申请实施例提供了一种芯片系统，该芯片系统包括处理器，用于支持通信装置执行图11A-18中任一附图中UPF网元的相关方法。例如第一设备获取所述第一设备的端口标识，其中，所述第一设备为通过数据流通信的发送端或接收端，所述数据流包括标识所述数据流的第一信息，所述第一信息用于指示所述发送端通过所述数据流发送数据，还用于指示所述接收端通过所述数据流接收所述数据；所述第一设备发送指示所述第一设备的端口标识的第二信息，所述第一设备的端口标识用于所述数据流的创建。在一种可能的设计中，该芯片系统还包括存储器，该存储器，用于保存终端设备必要的程序指令和数据。该芯片系统，可以包括芯片，集成电路，也可以包含芯片和其他分立器件，本申请实施例对此不作具体限定。
其中，本申请提供的通信装置、计算机存储介质、计算机程序产品或者芯片系统均用于执行上文所提供的对应的方法，因此，其所能达到的有益效果可参考上文所提供的对应的方法中的有益效果，此处不再赘述。
可以理解的是，上述通信装置，可以是UPF网元，也可以是可用于UPF网元的部件(芯片或者电路等)。
应理解，在本申请的各种实施例中，“第一”、“第二”、等仅是为了指代不同的对象，并不表示对指代的对象有其它限定。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
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，在此不再重复。
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、设备和方法，可以通过其它的方式实现。例如，以上所描述的设备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，设备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。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件程序实现时，可以全部或部分地以计算机程序产品的形式来实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或者数据中心通过有线(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可以用介质集成的服务器、数据中心等数据存储设 备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)，光介质(例如，DVD)、或者半导体介质(例如固态硬盘(Solid State Disk，SSD))等。
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 (26)

  1. 一种通信方法，其特征在于，包括：
    控制设备根据第一指示信息和第二指示信息确定通过数据流通信的发送端和接收端，其中，所述第一指示信息用于指示第一设备为所述发送端，所述第二指示信息用于指示第二设备为所述接收端，或者，所述第一指示信息用于指示所述第一设备为所述接收端，所述第二指示信息用于指示所述第二设备为所述发送端，所述数据流包括标识所述数据流的第一信息，所述第一信息用于指示所述发送端通过所述数据流发送数据，还用于指示所述接收端通过所述数据流接收所述数据；
    所述控制设备获取所述数据流的带宽信息；
    所述控制设备发送数据流信息，发送所述带宽信息，其中，所述数据流信息用于指示所述发送端的端口标识、所述接收端的端口标识中的至少一项，所述发送端的端口标识、所述接收端的端口标识以及所述带宽信息用于所述数据流的创建。
  2. 根据权利要求1所述的通信方法，其特征在于，所述通信方法还包括：
    所述控制设备从所述第一设备接收所述第一指示信息，和/或，从所述第二设备接收所述第二指示信息。
  3. 根据权利要求1所述的通信方法，其特征在于，所述通信方法还包括：
    所述控制设备从会话管理功能网元接收所述第一指示信息和所述第二指示信息。
  4. 根据权利要求3所述的通信方法，其特征在于，所述通信方法还包括：
    所述控制设备向所述第一设备发送所述第一指示信息，和/或，向所述第二设备发送所述第二指示信息。
  5. 根据权利要求1-4任一项所述的通信方法，其特征在于，所述通信方法还包括：
    所述控制设备从所述发送端和/或所述接收端接收所述第一信息。
  6. 根据权利要求1-4任一项所述的通信方法，其特征在于，所述通信方法还包括：
    所述控制设备向所述发送端和/或所述接收端发送所述第一信息。
  7. 根据权利要求1-6任一项所述的通信方法，其特征在于，所述通信方法还包括：
    所述控制设备从所述发送端接收所述发送端的端口标识，和/或，从所述接收端接收所述接收端的端口标识。
  8. 根据权利要求1-7任一项所述的通信方法，其特征在于，所述数据流信息包括所述发送端的端口标识，所述控制设备发送数据流信息，包括：
    所述控制设备向所述发送端发送所述数据流信息，其中，所述数据流信息用于指示所述发送端通过所述发送端的端口标识对应的端口向所述接收端发送流预留协议SRP请求消息，所述SRP请求消息用于触发所述数据流的创建。
  9. 根据权利要求1-8任一项所述的通信方法，其特征在于，所述数据流信息包括可靠时延传输网络标识，其中，所述可靠时延传输网络标识与所述发送端的端口标识和所述接收端的端口标识关联。
  10. 根据权利要求1-9任一项所述的通信方法，其特征在于，所述控制设备获取所述数据流的带宽信息，包括：
    所述控制设备从所述发送端和/或所述接收端接收所述带宽信息。
  11. 根据权利要求1-9任一所述的通信方法，其特征在于，所述发送所述带宽信息，包括：
    所述控制设备向所述发送端和/或所述接收端发送所述带宽信息。
  12. 根据权利要求1-11任一项所述的通信方法，其特征在于，所述通信方法还包括：
    所述控制设备向网络功能存储功能网元发送所述发送端与所述接收端之间的可达信息，所述可达信息用于指示所述发送端与所述接收端位于同一可靠时延传输网络中。
  13. 一种通信方法，其特征在于，包括：
    第一设备获取所述第一设备的端口标识，其中，所述第一设备为通过数据流通信的发送端或接收端，所述数据流包括标识所述数据流的第一信息，所述第一信息用于指示所述发送端通过所述数据流发送数据，还用于指示所述接收端通过所述数据流接收所述数据；
    所述第一设备发送指示所述第一设备的端口标识的第二信息，所述第一设备的端口标识用于所述数据流的创建。
  14. 根据权利要求13所述的通信方法，其特征在于，所述第一设备获取所述第一设备的端口标识，包括：
    所述第一设备从控制设备接收可靠时延传输网络标识；
    所述第一设备根据所述可靠时延传输网络标识获取所述第一设备的端口标识。
  15. 根据权利要求13所述的通信方法，其特征在于，所述第一设备获取所述第一设备的端口标识，包括：
    所述第一设备从所述控制设备接收所述第一设备的端口标识。
  16. 根据权利要求13或14所述的通信方法，其特征在于，所述第一设备发送指示所述第一设备的端口标识的第二信息，包括：
    所述第一设备向控制设备发送所述第一设备的端口标识。
  17. 根据权利要求13-16任一项所述的通信方法，其特征在于，所述通信方法还包括：
    所述第一设备通过所述第一设备的端口标识对应的端口向第二设备发送流预留协议SRP请求消息，其中，所述SRP请求消息用于触发所述数据流的创建，所述第一设备为所述发送端，所述第二设备为所述接收端；
    或者，
    所述第一设备通过所述第一设备的端口标识对应的端口向第二设备发送SRP响应消息，其中，所述SRP响应消息用于对来自所述第二设备的SRP请求消息进行响应，所述SRP请求消息用于触发所述数据流的创建，所述第一设备为所述接收端，所述第二设备为所述发送端。
  18. 根据权利要求13-17任一项所述的通信方法，其特征在于，所述通信方法还包括：
    所述第一设备从控制设备接收第一指示信息，所述第一指示信息用于指示所述第一设备为所述发送端或所述接收端。
  19. 根据权利要求13-17任一项所述的通信方法，其特征在于，所述通信方法还包括：
    所述第一设备向控制设备发送第一指示信息，所述第一指示信息用于指示所述第一设备为所述发送端或所述接收端。
  20. 根据权利要求13-19任一项所述的通信方法，其特征在于，所述通信方法还包括：
    所述第一设备从控制设备接收所述数据流的带宽信息。
  21. 根据权利要求13-19任一项所述的通信方法，其特征在于，所述通信方法还包括：
    所述第一设备向控制设备发送所述数据流的带宽信息。
  22. 根据权利要求13-21任一项所述的通信方法，其特征在于，所述通信方法还包括：
    所述第一设备从控制设备接收所述第一信息。
  23. 根据权利要求13-21任一项所述的通信方法，其特征在于，所述通信方法还包括：
    所述第一设备向控制设备发送所述第一信息。
  24. 一种通信装置，其特征在于，包括：
    确定单元，用于根据第一指示信息和第二指示信息确定通过数据流通信的发送端和接收端，其中，所述第一指示信息用于指示第一设备为所述发送端，所述第二指示信息用于指示第二设备为所述接收端，或者，所述第一指示信息用于指示所述第一设备为所述接收端，所述第二指示信息用于指示所述第二设备为所述发送端，所述数据流包括标识所述数据流的第一信息，所述第一信息用于指示所述发送端通过所述数据流发送数据，还用于指示所述接收端通过所述数据流接收所述数据；
    获取单元，用于获取所述数据流的带宽信息；
    发送单元，用于发送数据流信息，发送所述获取单元获取的带宽信息，其中，所述数据流信息用于指示所述确定单元确定的发送端的端口标识、所述确定单元确定的接收端的端口标识中的至少一项，所述发送端的端口标识、所述接收端的端口标识以及所述带宽信息用于所述数据流的创建。
  25. 一种通信装置，其特征在于，包括：
    获取单元，用于获取第一设备的端口标识，其中，所述第一设备为通过数据流通信的发送端或接收端，所述数据流包括标识所述数据流的第一信息，所述第一信息用于指示所述发送端通过所述数据流发送数据，还用于指示所述接收端通过所述数据流接收所述数据；
    发送单元，用于发送指示所述获取单元获取的第一设备的端口标识的第二信息，所述第一设备的端口标识用于所述数据流的创建。
  26. 一种存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现权利要求1-12任一项所述的通信方法，或者实现权利要求13-23任一项所述的通信方法。
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