WO2019206063A1 - Procédé et dispositif de transmission de flux de service - Google Patents

Procédé et dispositif de transmission de flux de service Download PDF

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Publication number
WO2019206063A1
WO2019206063A1 PCT/CN2019/083620 CN2019083620W WO2019206063A1 WO 2019206063 A1 WO2019206063 A1 WO 2019206063A1 CN 2019083620 W CN2019083620 W CN 2019083620W WO 2019206063 A1 WO2019206063 A1 WO 2019206063A1
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WO
WIPO (PCT)
Prior art keywords
priority
service flow
application server
service
parameter
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PCT/CN2019/083620
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English (en)
Chinese (zh)
Inventor
倪国瑜
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华为技术有限公司
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Filing date
Publication date
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Publication of WO2019206063A1 publication Critical patent/WO2019206063A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • 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
    • H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H04L47/2425—Traffic characterised by specific attributes, e.g. priority or QoS for supporting services specification, e.g. SLA
    • H04L47/2433—Allocation of priorities to traffic types

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and an apparatus for service stream transmission.
  • the hard-through mode which is the SR-IOV (Single-Root I/O Virtualization) mode.
  • This mode is that the virtual machine monitor hypervisor virtualizes the physical network card to multiple virtual network cards, using the data plane development kit DPDK (Data The Plane Development Kit) or other technology enables virtual functions to pass directly to the VM VM.
  • DPDK Data The Plane Development Kit
  • the other is a virtual switch vSwitch (Virtual Switch).
  • the essence of the mode is software exchange.
  • the cloudized operating system exchanges the packets sent and received by the network card between the virtual machine VMs by means of interruption or polling.
  • the forwarding capability of the vSwitch is weaker than that of the SR-IOV.
  • the forwarding capability of some commercial virtual switches is about several hundred Kpps. Therefore, when traffic is bursting in the network, the vSwitch can easily become an end-to-end forwarding bottleneck. After the forwarding bottleneck occurs, the vSwitch cannot guarantee the priority of high-priority packets. For example, data traffic and VoLTE voice packets may be discarded at the same time. As a result, end-to-end high-priority packets cannot be effectively guaranteed. The high-priority packets may be discarded. The reason for the discarding is that the vSwitch cannot obtain the priority of the data stream. Therefore, the high-priority processing cannot be performed.
  • the priority of the data packet in the carrier network can be determined by the priority of the virtual local area network (VLAN) and the DSCP (Differentiated Service Code Point) of the network layer. QoS (Quality of Service) indication.
  • VLAN virtual local area network
  • DSCP Differentiated Service Code Point
  • QoS Quality of Service
  • the vSwitch can identify the VLAN priority or DSCP to make scheduling decisions. To ensure that the vSwitch can also perform priority difference processing on the receiving packet, you need to first specify the packet priority level.
  • the conventional packet DSCP or VLAN priority marking method is performed by the sender of the packet, usually the application server, to fill in the corresponding DSCP value or VLAN priority. This method cannot be accurate because the server sends the packet without being controlled by the carrier device. Reflecting service differences, it is not a good quality control.
  • the embodiments of the present invention provide a method and a device for service flow transmission, which ensure that the service equipment of the service provider controls the service quality of the service flow in the network, and ensures the quality of the high priority service.
  • an embodiment of the present invention provides a method for service flow transmission, including: an application server receiving service flow priority information sent by a policy control device; and determining, by the application server, a service flow according to the received service flow priority information. Priority parameter of the service flow, where the application server carries the priority parameter of the service flow.
  • the operator's policy control device performs priority control on the service flow in the network, thereby ensuring the quality of the high priority service.
  • the received service flow priority information includes a service flow identifier and a corresponding priority parameter
  • the application server directly carries the received service flow priority parameter in the sent service flow data.
  • the received service flow priority information includes a determination rule of the service flow priority
  • the application server determines the priority parameter of the service flow according to the priority determination rule.
  • the determining rule of the service flow priority includes a matching relationship between the service type and the priority, and the application server determines the priority of the service flow according to the matching relationship.
  • the service flow priority information is carried in the RAR message or carried in the AAA message.
  • the traffic flow priority parameter includes at least one of the following: a VLAN priority, or a differentiated service code point DSCP priority.
  • the embodiment of the present invention provides another method for service flow transmission, which is characterized in that: the policy control device generates service flow priority information; and the policy control device sends service flow priority information to the application server.
  • the service flow information is used to indicate that the application server carries the priority parameter determined according to the priority information in the delivered service flow data.
  • the operator's policy control device performs priority control on the service flow in the network, thereby ensuring the quality of the high priority service.
  • the service flow priority information sent by the policy control device includes a service flow identifier and a corresponding priority parameter, and is used to indicate that the application server directly carries the received service flow priority parameter in the sent Business flow data.
  • the service flow priority information sent by the policy control device includes a determination rule of the service flow priority, and is used to instruct the application server to determine a priority parameter of the service flow according to the priority determination rule.
  • the determining rule of the service flow priority includes a matching relationship between the service type and the priority, and is used to instruct the application server to determine the priority of the service flow according to the matching relationship.
  • the service flow priority information is carried in the RAR message or carried in the AAA message.
  • the traffic flow priority parameter includes at least one of the following: a VLAN priority, or a differentiated service code point DSCP priority.
  • an embodiment of the present invention provides an application server, which has the function of implementing an application server in the foregoing method.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more units corresponding to the above functions, such as a receiving unit, a determining unit, and a transmitting unit.
  • the structure of the application server includes a processor and a memory for storing application code supporting the application server to execute the above method, the processor being configured to perform the storage in the memory program of.
  • the application server also includes a communication interface for communicating with other devices.
  • an embodiment of the present invention provides a policy control device, which has the function of implementing the policy control device in the foregoing method.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more units corresponding to the functions described above, such as including a generating unit and a transmitting unit.
  • the structure of the policy control device includes a processor and a memory for storing application code supporting the policy control device to perform the above method, the processor being configured to execute the memory Stored in the program.
  • the policy control device also includes a communication interface for communicating with other devices.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions used by the application server or the policy control device, which includes a program designed to perform the above aspects.
  • the technical solution of the foregoing service flow transmission controls the service quality control of the service flow in the network through the policy control device managed by the operator, ensures the quality of the high priority service, and improves the reliability of the network.
  • FIG. 1 is a schematic structural diagram of a system for service flow transmission according to an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart of a service flow transmission according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of another service flow transmission according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of an application server according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of another application server according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a policy control device according to an embodiment of the present disclosure.
  • FIG. 7 is another schematic structural diagram of a policy control device according to an embodiment of the present invention.
  • FIG. 1 is a system architecture diagram of a service flow transmission according to an embodiment of the present invention, including: a policy control device 101, an application server 102, a cloud device 103, and a gateway device 104.
  • the policy control device 101 is configured to send priority related information of the service flow to the application server.
  • the policy control device may be a Policy and Charging Rules Function (PCRF) entity in a 4th generation (4G) mobile communication network, or may be a policy control function in a 5th generation (5G) mobile communication network. (Policy Control Function, PCF) entity.
  • PCF Policy Control Function
  • the application server 102 is configured to determine a priority of the service flow to be delivered to the user equipment according to the priority related information, and carry the priority parameter in the delivered service flow.
  • a priority of the service flow to be delivered to the user equipment is determined according to the priority related information, and carry the priority parameter in the delivered service flow.
  • the cloud device 103 is configured to forward the service flow sent by the application server to the gateway device accessed by the user equipment.
  • the cloud device determines the forwarded policy according to the priority parameter of the service flow.
  • the gateway device 104 is configured to forward the service flow data delivered by the received application server to the user equipment.
  • the gateway device may be a PDN gateway (PGW) in a 4th generation (4G) mobile communication network, or may be a User Plane Function (UPF) in a 5th generation (5G) mobile communication network. device.
  • PGW PDN gateway
  • UPF User Plane Function
  • an embodiment of the present invention provides a method for service flow transmission.
  • the policy control device directly configures the priority of the service flow to the application server, including the following steps:
  • Step 201a One way to configure the priority is that the policy control device actively notifies the application server of the relevant service flow priority parameter. For example, in step 201a, the policy control device sends a re-authentication request (RAR) message to the application server, and carries the relevant service flow priority information, including the DSCP parameter or the VLAN priority parameter, and the corresponding Flow information.
  • Step 202a After receiving the RAR message, the application server returns a Re-Auth-Answer message.
  • RAR re-authentication request
  • the application server After receiving the RAR message, the application server returns a Re-Auth-Answer message.
  • An example of a traffic flow priority parameter is shown in Table 1 below, and each service flow identifier corresponds to a corresponding priority.
  • 201b-202b another way of configuring the priority is that the policy control device sends the relevant service flow priority parameter according to the request of the application server. For example, in step 201b, after receiving the authentication-authentication-authentication (AAR) message of the diagnostic protocol sent by the application server, the policy control device returns an Authentication-Authorization-Answer message in step 202b. And carrying relevant service flow priority information, including DSCP parameters or VLAN priority parameters and corresponding flow information.
  • AAR authentication-authentication-authentication
  • the application server After receiving the foregoing priority parameter, the application server carries the priority corresponding to the service flow identifier, including the DSCP parameter or the VLAN priority parameter, in the service flow data sent to the user according to the foregoing Table 1.
  • the cloud device forwards the service flow data according to the priority parameter carried in the received service flow, for example, by analyzing the link layer VLAN priority parameter or the DSCP of the network layer to ensure that the high priority message is prioritized. Forwarded to the gateway device corresponding to the target user of the packet.
  • the policy control device uniformly controls the end-to-end QoS of services on all networks, and ensures the service quality of high-priority services.
  • an embodiment of the present invention provides another method for traffic transmission.
  • the policy control device configures the priority determination rule of the service flow to the application server, and the application server carries the priority in the delivered service flow according to the rule. Specifically, the following steps are included:
  • the policy control device can actively notify the application server of the service flow priority determination rule. For example, in step 301a, the policy control device carries the related service flow priority information, including the service flow determination rule, in the re-authentication request (RAR) message to the application server. Step 302a: After receiving the RAR message, the application server returns a Re-Auth-Answer message.
  • RAR re-authentication request
  • An example of a traffic flow determination rule is shown in Table 2 below, with each service flow type configured with a corresponding priority parameter.
  • the policy control device may also send a service flow priority determination rule according to the request of the application server. For example, in step 301b, after receiving the Authentication-Authorization-Request (AAR) message of the diagnostic protocol sent by the application server, the policy control device returns an Authentication-Authorization-Answer message in step 302b. , carrying the service flow priority determination rule as shown in Table 2. It includes DSCP parameters or VLAN priority parameters and corresponding stream information.
  • AAR Authentication-Authorization-Request
  • the application server After receiving the foregoing priority parameter, the application server obtains the service priority parameter according to the service type and the table 2 according to the foregoing table 2, if the service flow is to be delivered to the user.
  • the priority parameter is included in the delivered service flow data, including a DSCP parameter or a VLAN priority parameter.
  • the cloud device forwards the service flow data according to the priority parameter carried in the received service flow, for example, by analyzing the link layer VLAN priority parameter or the DSCP of the network layer to ensure that the high priority message is prioritized. Forwarded to the gateway device corresponding to the target user of the packet.
  • the policy control device uniformly controls the end-to-end QoS of services on all networks, and ensures the service quality of high-priority services.
  • An embodiment of the present invention further provides a schematic structural diagram of an application server, as shown in FIG. 4, including a receiving unit 401, a determining unit 402, and a sending unit 403; wherein:
  • the receiving unit is configured to receive service flow priority information sent by the policy control device;
  • the determining unit is configured to determine a priority parameter of the service flow according to the received service flow priority information
  • the sending unit is configured to carry a priority parameter of the service flow in the delivered service flow data.
  • the application server is presented in the form of a functional unit.
  • a "unit” herein may refer to an application-specific integrated circuit (ASIC), circuitry, a processor and memory that executes one or more software or firmware programs, integrated logic circuitry, and/or other functions that provide the functionality described above.
  • ASIC application-specific integrated circuit
  • Device e.g., those skilled in the art will appreciate that an application server can be implemented using a processor, memory, and communication interface.
  • FIG. 5 is a schematic diagram of a computer device according to an embodiment of the present invention.
  • the computer device includes at least one processor 501, a communication bus 502, a memory 503, and at least one communication interface 504, and may further include an IO interface 505.
  • the processor can be a general purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present invention.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication bus can include a path for communicating information between the components described above.
  • the communication interface uses devices such as any transceiver for communicating with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Networks (WLAN), and the like.
  • RAN Radio Access Network
  • WLAN Wireless Local Area Networks
  • the memory can 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 of information and instructions that can be stored.
  • the dynamic storage device may also be an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, or a disc storage device ( Including compressed optical discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic 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 stored by a computer Any other media taken, but not limited to this.
  • the memory can exist independently and be connected to the processor via a bus.
  • the memory can also be integrated with the processor.
  • the memory is used to store application code for executing the solution of the present invention, and is controlled by a processor.
  • the processor is configured to execute application code stored in the memory.
  • the processor may include one or more CPUs, and each CPU may be a single-core processor or a multi-core processor.
  • a processor herein may refer to one or more devices, circuits, and/or processing cores for processing data, such as computer program instructions.
  • the computer device can also include an input/output (I/O) interface.
  • the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector.
  • the input device can be a mouse, a keyboard, a touch screen device, or a sensing device.
  • the computer device described above may be a general purpose computer device or a special purpose computer device.
  • the computer device may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet, a wireless terminal device, a communication device, an embedded device, or the like in FIG. Structured equipment.
  • PDA personal digital assistant
  • Embodiments of the invention do not limit the type of computer device.
  • the application server in FIG. 1 may be the device shown in FIG. 5, and one or more software modules are stored in the memory.
  • the application server can implement the above method by implementing the software module through the processor and the program code in the memory.
  • the embodiment of the present invention further provides a computer storage medium for storing computer software instructions for use in the apparatus shown in FIG. 4 or FIG. 5, which includes a program designed to execute the foregoing method embodiments.
  • the above method can be implemented by executing a stored program.
  • the embodiment of the present invention further provides a schematic structural diagram of a policy control device. As shown in FIG. 6, the device includes a generating unit 601 and a sending unit 602.
  • the generating unit is configured to generate service flow priority information
  • the sending unit is configured to send the service flow priority information to the application server, where the service flow information is used to indicate that the application server carries the priority parameter determined according to the priority information in the delivered service flow data.
  • the policy control device is presented in the form of a functional unit.
  • a "unit” herein may refer to an application-specific integrated circuit (ASIC), circuitry, a processor and memory that executes one or more software or firmware programs, integrated logic circuitry, and/or other functions that provide the functionality described above.
  • ASIC application-specific integrated circuit
  • the policy control device can be implemented using a processor, memory, and communication interface.
  • FIG. 7 is a schematic diagram of a computer device according to an embodiment of the present invention.
  • the computer device includes at least one processor 701, a communication bus 702, a memory 703, and at least one communication interface 704, and may further include an IO interface 705.
  • the processor can be a general purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present invention.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication bus can include a path for communicating information between the components described above.
  • the communication interface uses devices such as any transceiver for communicating with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Networks (WLAN), and the like.
  • RAN Radio Access Network
  • WLAN Wireless Local Area Networks
  • the memory can 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 of information and instructions that can be stored.
  • the dynamic storage device may also be an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, or a disc storage device ( Including compressed optical discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic 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 stored by a computer Any other media taken, but not limited to this.
  • the memory can exist independently and be connected to the processor via a bus.
  • the memory can also be integrated with the processor.
  • the memory is used to store application code for executing the solution of the present invention, and is controlled by a processor.
  • the processor is configured to execute application code stored in the memory.
  • the processor may include one or more CPUs, and each CPU may be a single-core processor or a multi-core processor.
  • a processor herein may refer to one or more devices, circuits, and/or processing cores for processing data, such as computer program instructions.
  • the computer device can also include an input/output (I/O) interface.
  • the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector.
  • the input device can be a mouse, a keyboard, a touch screen device, or a sensing device.
  • the computer device described above may be a general purpose computer device or a special purpose computer device.
  • the computer device may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet, a wireless terminal device, a communication device, an embedded device, or the like in FIG. Structured equipment.
  • PDA personal digital assistant
  • Embodiments of the invention do not limit the type of computer device.
  • the policy control device in FIG. 1 may be the device shown in FIG. 7, in which one or more software modules are stored.
  • the policy control device can implement the above method by implementing the software module through the processor and the program code in the memory.
  • the embodiment of the present invention further provides a computer storage medium for storing computer software instructions for use in the apparatus shown in FIG. 6 or FIG. 7 above, which includes a program designed to execute the above method embodiment.
  • the above method can be implemented by executing a stored program.
  • embodiments of the present invention can be provided as a method, apparatus (device), or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the computer program is stored/distributed in a suitable medium, provided with other hardware or as part of the hardware, or in other distributed forms, such as over the Internet or other wired or wireless telecommunication systems.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Automation & Control Theory (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente invention concerne un procédé de transmission de flux de service, comprenant les étapes suivantes : un serveur d'application reçoit des informations de priorité de flux de service envoyées par un dispositif de commande de politique; selon les informations de priorité de flux de service reçues, le serveur d'application détermine des paramètres de priorité d'un flux de service; le serveur d'application porte les paramètres de priorité du flux de service dans des données de flux de service émises. Ainsi, la qualité d'un service à haute priorité est garantie au moyen d'une commande de qualité de service d'un dispositif d'opérateur sur un flux de service dans un réseau.
PCT/CN2019/083620 2018-04-23 2019-04-22 Procédé et dispositif de transmission de flux de service WO2019206063A1 (fr)

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CN201810365995.XA CN110391998A (zh) 2018-04-23 2018-04-23 一种业务流传输的方法和设备
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