RU2782571C2 - Method, system and device for quality of service control - Google Patents

Abstract

FIELD: communication.

SUBSTANCE: stages are provided, at which: a communication device receives a service stream identifier of a terminal, the first parameter of control of quality of service of the first communication line of stream division for transmission of the service stream, and information of correlation of the first communication line of stream division for the first communication line of stream division, and the second parameter of control of quality of service of the second communication line of stream division for transmission of the service stream and information of correlation of the second communication line of stream division for the second communication line of stream division; and the communication device initiates, based on the service stream identifier, the specified first parameter, information of correlation of the first communication line of stream division, the specified second parameter, and information of correlation of the second communication line of stream division, establishment of the first connection of quality of service control, corresponding to the first communication line of stream division, and the second connection of quality of service control, corresponding to the second communication line of stream division.

EFFECT: possibility of control of quality of service of a multiple access communication line in a multiple access scenario.

13 cl, 13 dwg

Description

The field of technology to which the invention belongs

[0001] This application relates to the field of communication technologies, in particular, to a method, system and device for monitoring the quality of service.

State of the art

[0002] In order to solve the problems of wireless broadband technologies and ensure the leading position of the network of the 3rd generation partnership project (3GPP), the 3GPP standards organization formulated the network architecture of the next generation mobile communication system (next generation system) at the end of 2016, which called the network architecture of the 5th generation (5th generation, 5G). This architecture supports both 5G core network access using the wireless technology defined by the 3GPP standardization organization and 5G core network access using non-3GPP access technology (non-3GPP, N3G). In other words, in the 5G network architecture, there may be a dual access scenario or even a multiple access scenario.

[0003] In addition, in the 5G network architecture, an ultra-reliable low latency communication (URLLC) scenario is defined, which mainly includes services having low latency, high reliability connection requirements, such as unmanned driving and industrial automation service. The requirements in the above scenario can be met by using the advanced air interface technology and the optimized core network architecture of the 5G network. However, in a 5G network, the lower layer link, upper layer routing protocol, etc. somewhat unstable. In addition, network delay, error, or even network failure is always inevitable from a network design point of view. However, the above scenario mainly refers to a service related to life safety or industrial safety, and no error is allowed. Therefore, when the 5G network is used for the service of the aforementioned industry that is sensitive to life safety or industrial safety, the quality of service must be monitored in real time in the 5G network. Thus, when the quality of service does not meet the predetermined condition, a corresponding setting operation or protection operation can be performed. In the current quality of service monitoring method, the monitoring packet and the monitored service packet are sent on the same link, so that the link quality can be properly reflected based on the link quality of service. In addition, the monitoring package can be used to monitor the quality of service of only one link at a time, instead of simultaneously monitoring the quality of service of multiple links.

[0004] However, in a multiple access scenario, in other words, in a scenario in which there are multiple available links for one service, if the quality of service is controlled using the above quality control method, a policy decision cannot be provided for the service flow at the time of transmission. multiple access services.

[0005] Therefore, at present, the question of how to control the QoS of a multi-access link in a multi-access scenario is a problem that needs to be urgently addressed.

The essence of the invention

[0006] Embodiments of the present application provide a quality of service monitoring method, system, and apparatus for monitoring the quality of service of a multiple access link in a multiple access scenario.

[0007] To achieve the above goal, the following technical solutions are used in the embodiments of the present application.

[0008] According to a first aspect, a method for monitoring quality of service is provided. The method includes the steps of: obtaining, by means of the communication device, a service flow identifier of the terminal, a first QoS control parameter of the first flow split communication link for transmitting the service flow, and correlation information of the first flow split communication link for the first flow split communication link, and a second monitoring parameter the quality of service of the second flow division link for transmitting the service flow and the correlation information of the second flow division link for the second flow division link; and initiating by the communication device, based on the service flow identifier, the first quality of service control parameter, the correlation information of the first flow split communication link, the second quality of service control parameter, and the correlation information of the second flow split communication link, establishing the first QoS connection corresponding to the first link flow division, and a second QoS connection corresponding to the second flow division link. According to this solution, the communication device may initiate, based on the received terminal service flow identifier, the received first QoS parameter, the received flow split first link correlation information, the received second QoS parameter, and the received flow split second link correlation information, establishing a first QoS connection corresponding to the first flow split link, and a second QoS connection corresponding to the second flow split link. Therefore, in a multi-access scenario, in other words, a scenario in which there are multiple available links for one service, the QoS of the multi-access link can be controlled to provide a policy basis for switching a service over different flow division links.

[0009] Optionally, the communication device includes a session control network element, a user plane function network element, or a terminal.

[0010] In an exemplary design, the communication device is a session control network element; accordingly, the step of obtaining, by the communication device, a service flow identifier of the terminal includes the step of: receiving, by means of the session network element, a first message from the network policy control element, where the first message carries the service flow identifier and the flow split policy corresponding to the service flow identifier, and the flow split policy is used to indicate that the service flow is allowed to split into the first flow split link and the second flow split link; and the step of obtaining, by the communication device, the correlation information of the first flow division link for the first flow division link and the correlation information of the second flow division link for the second flow division link, includes the step of: determining, by the session network element, the correlation information of the first flow division links for the first flow division link; and second flow division link mapping information for the second flow division link. According to this solution, the session network element can obtain the service flow identifier, the first flow split link mapping information, and the second flow split link mapping information.

[0011] In an exemplary design, the communication device is a network session control element, and the step of initiating by the communication device based on the service flow identifier, the first quality of service control parameter, the correlation information of the first flow division communication link, the second quality of service control parameter, and the correlation information of the second line a flow split link, establishing a first QoS connection corresponding to the first flow split link and a second QoS connection corresponding to the second flow split link, includes: sending, by a session network control element, a flow identifier service, the first QoS control parameter, the first flow division link correlation information, the second QoS control parameter, and the second flow division link correlation information into the function network element user plane. Therefore, the network element of the user plane function can correlate the service flow identifier, the first QoS parameter, and the correlation information of the first flow division link; and correlate the service flow identifier, the second QoS parameter, and the correlation information of the second flow split link so that the first QoS connection and the second QoS connection can be established.

[0012] In an exemplary design, the communication device is a session control network element, and the step of initiating by the communication device based on the service flow identifier, the first quality of service control parameter, the first flow split communication link correlation information, the second quality of service control parameter, and the second link correlation information a flow split link, establishing a first QoS connection corresponding to the first flow split link and a second QoS connection corresponding to the second flow split link, includes: sending, by a session network control element, a flow identifier service, the first QoS parameter, the correlation information of the first flow division link, the second QoS parameter, and the correlation information of the second flow division link to the terminal using m of the first access device corresponding to the first flow division link or the second access device corresponding to the second flow division link, where the service flow identifier, the first QoS control parameter, and the correlation information of the first flow division link are used to control the quality of service of the first division link flow; and the service flow identifier, the second quality of service control parameter, and the correlation information of the second flow division link are used for quality of service control of the second flow division link. Therefore, the terminal can correlate the service flow identifier, the first QoS parameter, and the correlation information of the first flow division link; and correlate the service flow identifier, the second QoS parameter, and the correlation information of the second flow split link so that the first QoS connection and the second QoS connection can be established.

[0013] In an exemplary design, the communication device is a session control network element, and the step of initiating by the communication device based on the service flow identifier, the first quality of service control parameter, the first flow split communication link correlation information, the second quality of service control parameter, and the second link correlation information a flow split link, establishing a first QoS connection corresponding to the first flow split link and a second QoS connection corresponding to the second flow split link, includes the steps of: sending, by the session network control element, a flow identifier service and a first QoS control parameter to the terminal based on the correlation information of the first flow division link using the first access device corresponding to the first flow division link, where the identification the service flow torus and the first quality of service control parameter are used to control the quality of service of the first flow division link; and sending, by means of the session network element, the service flow identifier and the second quality of service control parameter to the terminal based on the correlation information of the second flow division link using the second access device corresponding to the second flow division link, where the service flow identifier and the second quality of service control parameter are used to control the quality of service of the second flow division link. Therefore, the terminal can correlate the service flow identifier, the first QoS parameter, and the corresponding flow split link mapping information; and correlate the service flow identifier, the second QoS parameter, and the corresponding flow split link mapping information so that the first QoS connection and the second QoS connection can be established.

[0014] In an exemplary design, the communication device includes a user plane function terminal or network element; accordingly, the step of obtaining, by the communication device, a service flow identifier of the terminal includes the step of: receiving, by the terminal or the user plane function network element, a second message from the session control network element, where the second message carries the service flow identifier and the flow split policy corresponding to the identifier a service flow, and a flow split policy is used to indicate that a service flow can be split into a first flow split link and a second flow split link; and the step of obtaining, by the communication device, the first flow division link correlation information for the first flow division link and the second flow division link correlation information for the second flow division link, comprising: determining, by the terminal or the network element, user plane functions first flow division link mapping information for the first flow division link; and second flow division link association information for the second flow division link. According to this solution, the user plane function terminal or network element can obtain the service flow identifier, the first flow division link association information, and the second flow division link association information.

[0015] In an exemplary design, the communication device is a network element of a user plane function, and the step of initiating by the communication device based on the service flow identifier, the first quality of service control parameter, the correlation information of the first flow split communication link, the second quality of service control parameter, and the correlation information of the second a flow division link, establishing a first QoS connection corresponding to the first flow division link and a second QoS connection corresponding to the second flow division link includes: sending, by a user plane function network element, a service flow identifier, a first quality of service control parameter, correlation information of a first flow division link, a second quality of service parameter, and correlation information of a second flow division link in terminal using the first access device corresponding to the first flow division link, or the second access device corresponding to the second flow division link, where the service flow identifier, the first QoS control parameter, and the mapping information of the first flow division link are used to control the quality of service of the first flow separation communication lines; and the service flow identifier, the second quality of service control parameter, and the correlation information of the second flow division link are used for quality of service control of the second flow division link. Therefore, the terminal can correlate the service flow identifier, the first QoS parameter, and the correlation information of the first flow division link; and correlate the service flow identifier, the second QoS parameter, and the correlation information of the second flow split link so that the first QoS connection and the second QoS connection can be established.

[0016] In an exemplary design, the communication device is a network element of a user plane function, and the step of initiating by the communication device based on the service flow identifier, the first quality of service control parameter, the correlation information of the first flow split communication link, the second quality of service control parameter, and the correlation information of the second a flow division link, establishing a first QoS connection corresponding to the first flow division link and a second QoS connection corresponding to the second flow division link, includes the steps of: sending, by a user plane function network element, the service flow identifier and the first QoS parameter to the terminal based on the correlation information of the first flow split link using the first access device corresponding to the first split link flow i, where the service flow identifier and the first QoS parameter are used to control the quality of service of the first flow split link; and sending, by means of the user plane function network element, the service flow identifier and the second quality control parameter to the terminal based on the correlation information of the second flow division link using the second access device corresponding to the second flow division link, where the service flow identifier and the second quality control parameter services are used to control the quality of service of the second flow division link. Therefore, the terminal can correlate the service flow identifier, the first QoS parameter, and the corresponding flow split link mapping information; and correlate the service flow identifier, the second QoS parameter, and the corresponding flow split link mapping information so that the first QoS connection and the second QoS connection can be established.

[0017] In an exemplary design, the communication device is a terminal, and the step of initiating by the communication device based on the service flow identifier, the first quality of service control parameter, the first flow division link correlation information, the second quality of service control parameter, and the second flow division link correlation information , establishing a first QoS connection corresponding to the first flow division link and a second QoS connection corresponding to the second flow division link includes: sending, by the terminal, a service flow identifier, a first QoS control parameter, the first flow division link mapping information, the second quality of service control parameter, and the second flow division link mapping information to the user plane function network element using the first device. an access device corresponding to the first flow division link, or a second access device corresponding to the second flow division link, where the service flow identifier, the first QoS control parameter, and the correlation information of the first flow division link are used to control the quality of service of the first flow division link ; and the service flow identifier, the second QoS control parameter, and the correlation information of the second flow split link are used for QoS control of the second flow split link. Therefore, the network element of the user plane function can correlate the service flow identifier, the first QoS parameter, and the correlation information of the first flow division link; and correlate the service flow identifier, the second QoS parameter, and the correlation information of the second flow split link so that the first QoS connection and the second QoS connection can be established.

[0018] In an exemplary design, the communication device is a terminal, and the step of initiating by the communication device, based on the service flow identifier, the first quality of service control parameter, the first flow division link correlation information, the second quality of service control parameter, and the second flow division link correlation information, establishing a first QoS connection corresponding to the first flow division link and a second QoS connection corresponding to the second flow division link includes the steps of: sending the service flow identifier and the first QoS parameter to the network user plane function element based on the mapping information of the first flow division link using the first access device corresponding to the first flow division link, where the service flow identifier and the first QoS control parameter are used to control the QoS of the first flow division link; and sending, by the terminal, the service flow identifier and the second quality control parameter to the user plane function network element based on the correlation information of the second flow division link using the second access device corresponding to the second flow division link, where the service flow identifier and the second quality control parameter services are used to control the quality of service of the second flow division link. Therefore, the network element of the user plane function can correlate the service flow identifier, the first QoS parameter, and the corresponding flow split link mapping information; and correlate the service flow identifier, the second QoS parameter, and the corresponding flow split link mapping information so that the first QoS connection and the second QoS connection can be established.

[0019] According to a second aspect, a method for monitoring quality of service is provided. The method includes the steps of: obtaining, by means of a first packet processor, a service flow identifier of a terminal, a first QoS parameter of a first flow division link for transmitting a service flow, and correlation information of the first flow division link for the first flow division link and the second a second flow division link QoS parameter for transmitting a service flow and second flow division link correlation information for the second flow division link; correlating, by means of the first packet processor, the service flow identifier, the first QoS parameter, and the correlation information of the first flow split link; and correlating, by means of the first packet processor, the service flow identifier, the second QoS parameter, and the correlation information of the second flow division link. In other words, in this solution, a first QoS connection corresponding to the first flow division link and a second QoS connection corresponding to the second flow division link can be established. Therefore, in a multi-access scenario, in other words, a scenario in which there are multiple available links for one service, the QoS of the multi-access link can be monitored to provide a policy framework for switching a service over different flow split links.

[0020] Optionally, the first packet processor includes a user plane function terminal or network element.

[0021] In an exemplary scheme, the step of obtaining, by the first packet processor, a service flow identifier, a first QoS control parameter of the first flow split link for transmitting the service flow, and first split link correlation information for the first flow split link, and a second control parameter the quality of service of the second flow division link for transmitting the service flow, and the correlation information of the second flow division link for the second flow division link includes: receiving, by means of the first packet processor, a service flow identifier, a first quality of service control parameter, first flow division link mapping information, a second QoS parameter, and second flow division link mapping information from the session network control element. According to this solution, the first packet processor can obtain the service flow identifier, the first quality of service control parameter, the correlation information of the first split link link, the second QoS parameter, and the correlation information of the second split link link.

[0022] In an exemplary scheme, the step of obtaining, by the first packet processor, a service flow identifier, a first QoS parameter of the first flow split link for transmitting the service flow, and first split link correlation information for the first split link of the flow, and a second quality control parameter service of the second flow division link for transmitting the service flow and the correlation information of the second flow division link for the second flow division link includes: receiving, by means of the first packet processor, a service flow identifier, a first quality of service control parameter, correlation information first flow split link, a second quality of service control parameter, and second split link correlation information from the second packet processor using the first access device corresponding to a first flow division link or a second access device corresponding to a second flow division link. According to this solution, the first packet processor can obtain the service flow identifier, the first quality of service control parameter, the correlation information of the first split link link, the second QoS parameter, and the correlation information of the second split link link.

[0023] In an exemplary design, the step of obtaining, by the first packet processor, a service flow identifier, a first quality of service control parameter of the first flow split link for transmitting the service flow, and first split link correlation information for the first flow split link, and a second control parameter the quality of service of the second flow division link for transmitting the service flow, and the correlation information of the second flow division link for the second flow division link includes the steps of: receiving, by the first packet processor, a service flow identifier and a first quality of service control parameter from a second packet processor using a first access device corresponding to the first flow division link, and determining mapping information of the first flow division link based on the information of the first access device; and obtain, by means of the first packet processor, the service flow identifier and the second quality of service control parameter from the second packet processor using the second access device corresponding to the second flow division link, and determine the correlation information of the second flow division link based on the information of the second access device . According to this solution, the first packet processor can obtain the service flow identifier, the first quality of service control parameter, the first split link correlation information, the second QoS parameter, and the second split link link correlation information.

[0024] In an exemplary design, the step of matching, by the first packet processor, the service flow identifier, the first QoS parameter, and the correlation information of the first flow split link includes: storing, by the first packet processor, a correspondence between the service flow identifier, the first quality control parameter and the correlation information of the first link flow division; and the step of matching, by means of the first packet processor, the service flow identifier, the second quality of service control parameter, and the correlation information of the second flow split link includes the step of: storing, by the first packet processor, a correspondence between the service flow identifier, the second quality of service parameter and correlation information of the second flow division link. According to this solution, a first QoS connection corresponding to the first flow division link and a second QoS connection corresponding to the second flow division link can be established.

[0025] In an exemplary scheme, the quality of service monitoring method provided in this embodiment of the present application further includes: monitoring, by the first packet processor, the quality of service of the first flow division link based on the service flow identifier, the first monitoring parameter the quality of service and the correlation information of the first link flow division; or controlling, by the first packet processor, the quality of service of the second flow division link based on the service flow identifier, the second quality of service control parameter, and the correlation information of the second flow division link. According to this solution, the QoS of a multi-access link can be controlled to provide a policy framework for switching a service over different flow division links.

[0026] With reference to the first or second aspect, in an exemplary scheme, the correlation information of the first flow division link is information used to identify that the first quality of service control parameter is used to control the quality of service of the first flow division link, and the correlation information of the second flow division link is information used to identify that the second QoS control parameter is used to control the quality of service of the second flow division link.

[0027] With reference to the first aspect or the second aspect, in an exemplary scheme, the correlation information of the first flow division link includes at least one of a first access type corresponding to the first flow division link, a first session identifier corresponding to the first division link a flow, a first tunnel ID corresponding to the first flow split link, or a first control ID corresponding to the first flow split link; and the second flow split link correlation information includes at least one of a second access type corresponding to the second flow split link, a second session ID corresponding to the second flow split link, a second tunnel ID corresponding to the second flow split link, or a second control identifier corresponding to the second flow split link.

[0028] According to a third aspect, a communication device is provided, and the communication device has the functions of implementing the method according to the first aspect. The functions may be implemented by hardware, or may be implemented by appropriate software executed by hardware. The hardware or software includes one or more modules corresponding to functions.

[0029] According to a fourth aspect, a communication device is provided that includes a processor and a memory. The memory is configured to store a computer-executable instruction, and when the communication device is operated, the processor executes the computer-executable instruction stored in the memory, so that the communication device performs the quality of service monitoring method according to the first aspect.

[0030] According to a fifth aspect, a communications device is provided that includes a processor. The processor is configured: after connecting to the memory and reading the instruction in the execution memory in accordance with the instruction of the quality of service monitoring method according to the first aspect.

[0031] According to a sixth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores the instruction, and when the instruction is executed on the computer, the computer is enabled to execute the QoS method according to the first aspect.

[0032] According to a seventh aspect, a computer program product including an instruction is provided. When the computer program product is executed on the computer, the computer is enabled to perform the QoS monitoring method according to the first aspect.

[0033] According to an eighth aspect, a chip system is provided. The chip system includes a processor configured to support the communication device in realizing the functions in the first aspect, for example, obtaining a service flow identifier of the terminal, a first QoS parameter of the first flow division link for transmitting the service flow, and correlation information of the first flow division link. for the first flow division link and the second QoS parameter of the second flow division link for transmitting the service flow and the second flow division link correlation information for the second flow division link. In an exemplary implementation, the chip system further includes memory. The memory is configured to store program instructions and data necessary for the communication device. The chip system may include a chip, or may include a chip and other discrete device.

[0034] For the technical effects provided by any of the third to eighth aspect design methods, refer to the technical effects provided by the various first aspect design methods, and details are not described here again.

[0035] According to a ninth aspect, a first packet processor is provided, and the first packet processor has the functions of implementing the method according to the second aspect. The functions may be implemented by hardware, or may be implemented by appropriate software executed by hardware. The hardware or software includes one or more modules corresponding to functions.

[0036] According to a tenth aspect, a first packet processor is provided that includes a processor and a memory. The memory is configured to store a computer-executable instruction, and when the first packet processor operates, the processor executes the computer-executable instruction stored in the memory, so that the first packet processor performs the quality of service monitoring method according to the second aspect.

[0037] According to an eleventh aspect, a first packet processor is provided that includes a processor. The processor is configured: after connecting to the memory and reading the instruction in the execution memory in accordance with the instruction of the quality of service monitoring method according to the first aspect.

[0038] According to a twelfth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores the instruction, and when the instruction is executed on the computer, the computer is enabled to execute the QoS method according to the second aspect.

[0039] According to a thirteenth aspect, a computer program product including an instruction is provided. When the computer program product is run on the computer, the computer is able to perform the quality of service monitoring method according to the second aspect.

[0040] According to a fourteenth aspect, a chip system is provided. The chip system includes a processor configured to support the first packet processor while implementing functions in the second aspect, for example, mapping a service flow identifier, a first quality of service control parameter, and mapping information of a first flow division link; and correlating the service flow identifier, the second QoS parameter, and the correlation information of the second flow split link. In an exemplary implementation, the chip system further includes memory. The memory is configured to store program instructions and data that are needed by the first packet processor. The chip system may include a chip, or may include a chip and other discrete device.

[0041] For the technical effects provided by any of the ninth to fourteenth aspect design methods, refer to the technical effects provided by the various second aspect design methods, and details are not described here again.

[0042] According to a fifteenth aspect, a quality of service monitoring system is provided, and the quality of service monitoring system includes a session control network element and a user plane function network element. The session control network element is configured to obtain the service flow identifier of the terminal, the first quality of service control parameter of the first flow split communication link for transmitting the service flow, and the mapping information of the first flow split communication link for the first flow split communication link, and the second QoS parameter of the second flow split link. flow splitting for transmitting the service flow; and second splitting link mapping information for the second splitting flow link. The session control network element is further configured to send the service flow identifier, the first quality of service control parameter, the first flow split communication link mapping information, the second quality of service control parameter, and the second flow split communication link mapping information to the user plane function network element. The user plane function network element is configured to receive the service flow identifier, the first quality of service control parameter, the first flow split link mapping information, the second QoS parameter, and the second split link link correlation information from the session network element. The user plane function network element is configured to: correlate the service flow identifier, the first QoS parameter, and the correlation information of the first flow split link; and correlating the service flow identifier, the second QoS parameter, and the correlation information of the second flow split link.

[0043] In an exemplary design, the quality of service monitoring system further includes a network policy control element. The policy network element is configured to send a first message to the session network element, where the first message carries a service flow identifier and a flow split policy corresponding to the service flow identifier, and the flow split policy is used to indicate that the service flow is allowed to split on the first line a flow split link; and a second flow split link. Accordingly, that the session network element is configured to obtain a terminal service flow identifier includes: receiving a first message from the policy network element; and that the session control network element is configured to obtain the correlation information of the first flow division link and the correlation information of the second flow division link includes: determining the correlation information of the first flow division link and the correlation information of the second flow division link.

[0044] According to a sixteenth aspect, a quality of service monitoring system is provided, and the quality of service monitoring system includes a first packet processor and a second packet processor. The second packet processing device is configured to obtain a service flow identifier of the terminal, a first quality of service control parameter of the first flow division link for transmitting the service flow, and correlation information of the first flow division link for the first flow division link, and a second quality of service control parameter for the second line. flow split links for transmitting the service flow; and second split link mapping information for the second split flow link. The second packet processor is further configured to send the service flow identifier, the first quality of service control parameter, the first flow split link correlation information, the second QoS parameter, and the second split link link correlation information to the first packet processor using the first access device. , corresponding to the first link flow division, or the second access device corresponding to the second communication line flow division. The first packet processor is configured to receive, using the first access device or the second access device, the service flow identifier, the first quality of service control parameter, the first flow division link correlation information, the second quality of service control parameter, and the second flow division link correlation information, which sent by the second packet processor. The first packet processor is further configured to: correlate the service flow identifier, the first QoS parameter, and the correlation information of the first flow division link; and correlating the service flow identifier, the second QoS parameter, and the correlation information of the second flow split link.

[0045] According to a seventeenth aspect, a quality of service monitoring system is provided, and the quality of service monitoring system includes a first packet processing apparatus and a second packet processing apparatus. The second packet processing device is configured to obtain a service flow identifier of the terminal, a first quality of service control parameter of the first flow division link for transmitting the service flow, and correlation information of the first flow division link for the first flow division link, and a second quality of service control parameter for the second line. flow split links for transmitting the service flow; and second split link mapping information for the second split flow link. The second packet processor is further configured to send the service flow identifier and the first QoS parameter to the first packet processor based on the mapping information of the first split link using the first access device corresponding to the split link. The second packet processor is further configured to send the service flow identifier and the second QoS parameter to the first packet processor based on the second split link correlation information using the second access device corresponding to the second split link. The first packet processor is configured to: receive a service flow identifier and a first QoS parameter from a second packet processor using the first access device; and after determining the third flow split link correlation information for the first flow split link based on the service flow ID correlation first access device information, the first QoS control parameter, and the third flow split link correlation information. The first packet processor is further configured to: receive a service flow identifier and a second quality of service parameter from the second packet processor using the second access device; and after determining the fourth flow split link mapping information for the second flow split link based on the service flow ID mapping second access device information, the second quality of service control parameter, and the fourth flow split link correlation information.

[0046] With reference to the sixteenth or seventeenth aspect, in an exemplary design, the QoS system further includes a network session control element. The session control network element is configured to send a first message to a second packet processor, where the first message carries a service flow identifier and a flow split policy corresponding to the service flow identifier, and the flow split policy is used to indicate that the service flow is allowed to split on the first line a flow split link; and a second flow split link. Accordingly, that the second packet processor is configured to obtain a service flow identifier of the terminal includes: receiving a first message from the network session control element; and that the second packet processor is configured to obtain the mapping information of the first flow division link and the correlation information of the second flow division link includes: determining the correlation information of the first flow division link and the correlation information of the second flow division link.

[0047] With reference to the sixteenth or seventeenth aspect, in an exemplary design, the first packet processor is a terminal and the second packet processor is a user plane function network element; or the first packet processor is a user plane function network element and the second packet processor is a terminal.

[0048] For the technical effects provided by any of the fifteenth to seventeenth aspect design methods, refer to the technical effects provided by the various first or second aspect design methods, and the details are not described again here.

BRIEF DESCRIPTION OF THE DRAWINGS

[0049] FIG. 1 is a schematic diagram of a 5G multi-access network architecture according to an embodiment of the present application;

[0050] FIG. 2 is a schematic diagram of service flow distribution in a 5G network according to an embodiment of the present application;

[0051] FIG. 3 is a first schematic block diagram of a service quality control system according to an embodiment of this application;

[0052] FIG. 4 is a second schematic block diagram of a service quality control system according to an embodiment of this application;

[0053] FIG. 5 is a schematic diagram of a hardware structure of a communication device according to an embodiment of this application;

[0054] FIG. 6A and FIG. 6B is a first schematic flow diagram of a quality of service monitoring method according to an embodiment of the present application;

[0055] FIG. 7A and FIG. 7B is a second schematic flow diagram of a quality of service monitoring method according to an embodiment of the present application;

[0056] FIG. 8A and FIG. 8B is a third schematic flowchart of a quality of service monitoring method according to an embodiment of the present application;

[0057] FIG. 9 is a schematic block diagram of a communication device according to an embodiment of the present application; and

[0058] FIG. 10 is a schematic block diagram of a first packet processing apparatus according to an embodiment of this application.

Description of Embodiments

[0059] To facilitate understanding of the technical solutions in the embodiments of the present application, the following briefly describes the technologies associated with the present application.

[0060] 5G Multiple Access Network Architecture:

[0061] FIG. 1 shows a 5G network architecture according to an embodiment of the present application. The architecture not only supports the terminal when accessing the 5G core network using 3GPP access technology, but also supports the terminal when accessing the 5G core network using non-3GPP access technology.

[0062] As shown in FIG. 1, when the terminal is to access the 5G core network using 3GPP access technology, the terminal accesses the 5G core network using a radio access network (RAN) device; and when the terminal is to access the 5G core network using the non-3GPP access technology, the terminal accesses the 5G core network using the non-3GPP access gateway (N3G-GW). The 5G core network may include an access and mobility management function (AMF) network element, a user plane function (UPF) network element, a session management function (SMF) network element, a unified data management (UDM) network element; and the like. A RAN or N3G-GW device can access a data network (DN) using a UPF network element.

[0063] The terminal communicates with the AMF network element via the next generation network interface 1 (Next generation, N) (abbreviated as N1). The RAN or N3G-GW device communicates with the AMF network element through the N2 interface (abbreviated as N2). The RAN or N3G-GW device communicates with the UPF NE via an N3 interface (abbreviated as N3). The AMF NE communicates with the UDM NE through the N8 interface (N8 for short). The AMF NE communicates with the SMF NE through the N11 interface (N11 for short). The SMF NE communicates with the UPF NE through the N4 interface (N4 for short).

[0064] It should be noted that the interface names between network elements in FIG. 1 are only examples, and interfaces may have different names at the time of specific implementation. This is not specifically limited in the embodiments of the present application.

[0065] Optionally, the RAN device in this embodiment of the present application is a device accessing the 5G core network using 3GPP access technology. For example, the RAN device may be a base station, a broadband network gateway (BNG), or an aggregation switch. This is not specifically limited in the embodiments of the present application. The base station may include various types of base stations, such as a macro base station, a micro base station (also referred to as a small cell), a relay node, and an access point. This is not specifically limited in the embodiments of the present application.

[0066] Optionally, the N3G-GW in this embodiment of the present application is a device accessing the 5G core network using non-3GPP access technology. For example, the N3G-GW can be a broadband network gateway (BNG), a broadband remote access server (BRAS), a fixed network access gateway, or a wireless local area network (WLAN). ). This is not specifically limited in the embodiments of the present application.

[0067] It should be noted that the RAN device, N3G-GW, SMF network element, UPF network element, AMF network element, UDM network element, and the like. in fig. 1 are just names and these names do not restrict devices. In the 5G network and other future network, the network elements or entities corresponding to the RAN device, N3G-GW, SMF network element, UPF network element, AMF network element, and UDM network element may have different names. This is not specifically limited in the embodiments of the present application. For example, a UDM network element can be replaced by a home subscriber server (HSS), a user subscription database (USD), or a database object; and the N3G-GW can be replaced by a next generation packet data gateway (NG-PDG), a non-3GPP interworking function (N3IWF) network element, a non-3GPP untrusted access gateway, a trusted non-3GPP access gateway, or an access gateway function (AGF). This is usually described here. The details are again not described below.

[0068] In addition, although not shown, the 5G core network may further include an authentication server function (AUSF) network element, a policy control function (PCF) network element, and the like. This is not specifically limited in the embodiments of the present application.

[0069] Optionally, the 5G core network in this embodiment of the present application may be a visited public land mobile network (VPLMN) in a terminal roaming scenario, or may be a home public land mobile network (home public land mobile network, HPLMN) in a scenario without terminal roaming. This is not specifically limited in the embodiments of the present application.

[0070] Service flow:

[0071] The service flow in embodiments of the present application includes a service aggregation flow and a service subflow. For example, in the 5G network shown in FIG. 1, a service aggregation flow includes a packet data unit (PDU) session or a specific quality of service (QoS) flow in a PDU session, and a service subflow includes a specific service flow in a QoS flow. .

[0072] For example, as shown in FIG. 2, one PDU session is assumed to include three QoS flows: QoS flow 1, QoS flow 2, and QoS flow 3. QoS flow 1 includes subflow 1 and subflow 2. Subflow 1 and subflow 2 correspond to different service flows. For example, subflow 1 corresponds to flow 1 of the vehicle-to-everything communication (V2X) service, and subflow 2 corresponds to flow 2 of the V2X service. In this case, in FIG. 2, the service aggregation flow includes a session PDU, a QoS flow 1, a QoS flow 2, and a QoS flow 3; and a service subflow includes subflow 1 and subflow 2. A service subflow or a service aggregation flow can be used to carry a service packet and a control packet. A service packet is specifically a user packet, in other words, a packet that is transmitted by a terminal or application server over a network to perform a specific service. A control packet is, specifically, a packet that resides on the network and is used to control quality of service. The control packet is generated by a packet sending device or a packet transceiving device. The packet sender or packet transceiver may be a terminal or user plane function (UPF) network element in a 5G network; or may be another network element in a future network. This is not specifically limited in the embodiments of the present application.

[0073] Service Flow Identifier:

[0074] In embodiments of the present application, different service flow types correspond to different service flow identifiers.

[0075] For example, assuming that the service flow is a session PDU, the corresponding service flow identifier can be, for example, a terminal address, such as an Internet protocol (IP) address or a media access control (MAC) address. ) terminal.

[0076] Assuming that the service flow is a specific QoS flow in a PDU session, the corresponding service flow identifier may be, for example, a QoS flow identifier (QFI).

[0077] Assuming a Service Flow is a specific Service Flow in a QoS Flow, the corresponding Service Flow ID may be, for example, a 5-tuple. The 5-tuple in embodiments of the present application may include, for example, a source IP address, a destination IP address, a source port number, a destination port number, and a transport layer protocol number. This is mainly described here, and the details are again not described.

[0078] Quality of Service Parameter:

[0079] The Quality of Service parameter in embodiments of the present application is used to monitor the quality of service of a flow division link.

[0080] For example, the quality of service monitoring parameter may include a monitoring packet sending period, a QoS parameter to be monitored, a message threshold, a monitoring packet sending time, or a monitoring packet sending sequence number. This is not specifically limited in the embodiments of the present application.

[0081] For specific descriptions of the quality of service control parameter, see the existing solution, details are not described here.

[0082] The technical solutions in the embodiments of this application are described below with reference to the accompanying drawings in the embodiments of this application. In the description of this application, "/" means "or", unless otherwise indicated. For example, A/B may represent A or B. In this description, "and/or" only describes a correlation relationship for describing related objects, and represents that three relationships can exist. For example, A and/or B may represent the following three cases: Only A exists, both A and B exist, and only B exists. , and "at least one" means one or more. In addition, in order to clearly describe the technical solutions in the embodiments of the present application, the embodiments of the present application use terms such as "first" and "second" to distinguish between the same elements or similar elements that have basically the same functions or purposes. One skilled in the art will appreciate that terms such as "first" and "second" do not limit the number or sequence of execution, and that terms such as "first" and "second" do not indicate a particular difference.

[0083] In addition, the network architectures and service scenarios described in the embodiments of the present application are intended to more clearly describe the technical solutions in the embodiments of the present application, but do not limit the technical solutions provided in the embodiments of the present application. One skilled in the art can recognize that as network architectures evolve and a new service scenario emerges, the technical solutions provided in the embodiments of the present application are also applicable to a similar technical problem.

[0084] FIG. 3 shows a quality of service monitoring system 30 according to an embodiment of the present application. The QoS system 30 includes a session management network element 301 and a user plane function network element 302 .

[0085] The session control network element 301 is configured to: obtain a service flow identifier of the terminal, a first quality of service monitoring parameter of the first flow division link for transmitting the service flow, and correlation information of the first flow division link for the first flow division link, and a second monitoring parameter the quality of service of the second flow division link for transmitting the service flow and the correlation information of the second flow division link for the second flow division link; and sending the service flow identifier, the first QoS parameter, the first flow division link association information, the second QoS parameter, and the second flow division link association information to the user plane function network element 302 .

[0086] The user plane function network element 302 is configured to: receive a service flow identifier, a first quality of service control parameter, a first flow division link association information, a second quality of service control parameter, and a second flow division link association information from the control network element 301 session; correlating the service flow identifier, the first QoS parameter, and the correlation information of the first flow split link; and correlating the service flow identifier, the second QoS parameter, and the correlation information of the second flow split link.

[0087] For related descriptions of the service flow or service flow identifier, refer to some brief descriptions of the service flow or service flow identifier, and the details are not described here again.

[0088] For related descriptions of the first quality of service control parameter and the second quality of service control parameter, see some brief descriptions of the above quality of service control parameters, and details are not described here again.

[0089] Optionally, in this embodiment of the present application, the first flow division link correlation information is information used to identify that the first quality of service control parameter is used for quality of service monitoring of the first flow division link, and the second division link correlation information flow is information used to identify that the second quality of service control parameter is used to monitor the quality of service of the second flow division link. This is mainly described here, and the details are again not described.

[0090] For example, the mapping information of the first flow split link may include at least one of a first access type corresponding to the first flow split link, a first session ID corresponding to the first flow split link, a first tunnel ID corresponding to the first link. a flow split connection, or a first control identifier corresponding to the first flow split link; and the second flow split link correlation information may include at least one of a second access type corresponding to the second flow split link, a second session ID corresponding to the second flow split link, a second tunnel ID corresponding to the second flow split link, or a second control identifier corresponding to the second flow split link.

[0091] In this embodiment of the present application, the first access type corresponding to the first flow division link may be, for example, the access type corresponding to the 3GPP access technology, and the second access type, corresponding to the second flow division link, may be, for example, access type corresponding to non-3GPP access technology; or both the first access type corresponding to the first flow division link and the second access type corresponding to the second flow division link may be, for example, an access type corresponding to a 3GPP access technology; or both the first access type corresponding to the first flow division link and the second access type corresponding to the second flow division link may be, for example, an access type corresponding to a non-3GPP access technology or the like. This is not specifically limited in this embodiment of this application.

[0092] For example, the access type corresponding to the 3GPP access technology may be a cellular network type, and the access type corresponding to the non-3GPP access technology may be a fixed network type or a WLAN type. It is not specifically limited in this embodiment of this application.

[0093] In this embodiment of the present application, the first session identifier corresponding to the first flow division link may be, for example, the session ID (identity, ID) of the session PDU of the first session corresponding to the first flow division link, and the second session identifier , corresponding to the second flow division link, may be, for example, a session ID of the PDU of the second session corresponding to the second flow division link. It is not specifically limited in this embodiment of this application.

[0094] In this embodiment of the present application, the first tunnel identifier corresponding to the first flow split link may include, for example, the tunnel endpoint identity (TEID) of the user plane function network element and the TEID of the corresponding first access device; or the first tunnel identifier corresponding to the first flow split link may include, for example, a first generic routing encapsulation (GRE) key or a first QFI. It is not specifically limited in this embodiment of this application.

[0095] In this embodiment of the present application, the second tunnel identifier corresponding to the second flow split link may include, for example, the TEID of the user plane function network element and the TEID of the corresponding second access device; or the second tunnel identifier corresponding to the second flow split link may include, for example, a second GRE key or a second QFI. It is not specifically limited in this embodiment of this application.

[0096] In this embodiment of the present application, the first control identifier corresponding to the first flow division link may be, in particular, the identity of the control packet on the first flow division link, and the second control identifier corresponding to the second flow division link may be , in particular, the control packet identifier on the second flow split link. It is not specifically limited in this embodiment of this application.

[0097] For example, the first control identifier or the second control identifier may be a link quality awareness protocol (LQAP) identifier.

[0098] Optionally, in this embodiment of the present application, the session control network element 301 and the user plane function network element 302 may directly communicate with each other, or may communicate with each other via forwarding by another device. This is not specifically limited in this embodiment of this application.

[0100] According to the quality of service system provided in this embodiment of the present application, the network element of the user plane function can obtain the service flow identifier of the terminal, the first quality control parameter, the correlation information of the first flow division communication link, the second quality of service control parameter and correlation information of the second flow division link; correlate the service flow identifier, the first QoS parameter, and the correlation information of the first flow split link; and correlate the service flow identifier, the second QoS parameter, and the correlation information of the second flow division link. Therefore, in a multi-access scenario, in other words, a scenario in which there are multiple available links for one service, the QoS of the multi-access link can be controlled to provide a policy framework for switching a service over different flow division links.

[0101] Optionally, as shown in FIG. 3, the QoS system 30 provided in this embodiment of the present application may further include a policy control network element 303 .

[0102] The policy control network element 303 is configured to send a first message to the session control network element 301 . The first message carries a service flow identifier and a flow split policy corresponding to the service flow identifier, and the flow split policy is used to indicate that the service flow is allowed to split into a first flow split link and a second flow split link.

[0103] Accordingly, that the session control network element 301 is configured to obtain a terminal service flow identifier includes: receiving a first message from the policy control network element 303 .

[0104] That the session control network element 301 is configured to obtain the correlation information of the first flow division link and the correlation information of the second flow division link includes: determining the correlation information of the first flow division link and the correlation information of the second division link flow.

[0105] For example, the flow division policy in this embodiment of the present application may include the following: a service flow may be transmitted on a first flow division link and a second flow division link. Optionally, the split flow policy may further include, for example, 80% of the service flow carried on the first split flow link and 20% of the service flow sent on the second split flow link. Optionally, the flow split policy may further include, for example, a service flow may be dynamically split based on the load of the first flow split link and the load of the second flow split link.

[0106] Alternatively, for example, the flow division policy in this embodiment of the present application may include the following: the service flow is preferably transmitted on the first flow division link, and when the quality of service (e.g., delay, jitter, or packet loss ratio) of the first flow split link is less than the preset threshold, the service flow is switched to the second flow split link.

[0107] In other words, in this embodiment of the present application, the session network control element can learn, in accordance with the flow split policy sent by the policy network element, that the service flow is allowed to split into a first flow split link and a second flow split link. . The session control network element can then determine first flow division link association information for the first flow division link and second flow division association association information for the second flow division link.

[0108] Optionally, in this embodiment of the present application, the session control network element 301 and the policy control network element 303 may directly communicate with each other, or may communicate with each other via forwarding by another device. It is not specifically limited in this embodiment of this application.

[0109] FIG. 4 shows another quality of service monitoring system 40 according to an embodiment of the present application. The QoS system 40 includes a first packet processor 401 and a second packet processor 402.

[0110] In an exemplary implementation, the second packet processor 402 is configured to: obtain a service flow identifier of the terminal, a first quality of service parameter of the first flow division link for transmitting the service flow, and first division flow link correlation information for the first flow division link, and a second QoS parameter of the second flow division link for transmitting the service flow and second flow division link correlation information for the second flow division link; and sending the service flow identifier, the first QoS parameter, the correlation information of the first flow division link, the second QoS parameter, and the correlation information of the second flow division link to the first packet processor 401 using the first access device corresponding to the first division link flow, or a second access device corresponding to the second link flow division.

[0111] The first packet processor 401 is configured to: receive, using the first access device or the second access device, a service flow identifier, a first QoS control parameter, a first flow division link correlation information, a second QoS control parameter, and a second line correlation information flow split links that are sent by the second packet processor 402; correlating the service flow identifier, the first QoS parameter, and the correlation information of the first flow split link; and correlating the service flow identifier, the second QoS parameter, and the correlation information of the second flow split link.

[0112] In another exemplary implementation, the second packet processor 402 is configured to: obtain a service flow identifier of the terminal, a first quality of service parameter of the first flow division link for transmitting the service flow, and first division flow link correlation information for the first flow division link and a second QoS parameter for the second flow division link for transmitting the service flow and the second flow division link correlation information for the second flow division link; and sending the service flow identifier and the first QoS parameter to the first packet processor 401 based on the mapping information of the first flow division link using the first access device corresponding to the first flow division link; and sending the service flow identifier and the second QoS parameter to the first packet processor 401 based on the correlation information of the second flow division link using the second access device corresponding to the second flow division link.

[0113] The first packet processor 401 is configured to: receive a service flow identifier and a first quality of service parameter from the second packet processor 402 using the first access device; and after determining the third flow split link correlation information for the first flow split link based on the service flow ID correlation first access device information, the first QoS control parameter, and the third flow split link correlation information.

[0114] The first packet processor 401 is further configured to: receive a service flow identifier and a second quality of service parameter from the second packet processor 402 using the second access device; and after determining the fourth flow split link mapping information for the second flow split link based on the service flow ID mapping second access device information, the second quality of service control parameter, and the fourth flow split link correlation information.

[0115] Optionally, in this embodiment of this application, for related descriptions of the third flow division link correlation information, refer to the corresponding descriptions of the first flow division link correlation information; and related descriptions of the correlation information of the fourth flow division link, see the respective descriptions of the correlation information of the second flow division link. Details are not described here again.

[0116] Optionally, the correlation information of the third flow division link in this embodiment of the present application may be the same or may be different from the correlation information of the first flow division link, and the correlation information of the fourth flow division link in this embodiment of the present application may be the same as or may be different from the correlation information of the second flow division link. It is not specifically limited in this embodiment of this application.

[0117] In this embodiment of the present application, for the associated descriptions of the service flow, the service flow identifier, the first quality of service control parameter, the first flow division link association information, the second quality of service control parameter, and the second flow division link association information, see the embodiment shown in FIG. 3, and details are not described here again.

[0118] Optionally, in this embodiment of the present application, the first packet processor 401 may be a terminal, and the second packet processor 402 may be a user plane function network element; or the first packet processor 401 may be a user plane function network element, and the second packet processor 402 may be a terminal, or the like. It is not specifically limited in this embodiment of this application.

[0119] Optionally, in this embodiment of the present application, the first packet processor 401 and the second packet processor 402 may directly communicate with each other, or may communicate with each other via forwarding by another device. It is not specifically limited in this embodiment of this application.

[0120] According to the quality of service monitoring system provided in this embodiment of the present application, in a multiple access scenario, in other words, in a scenario in which there are multiple available links for one service, the quality of service for a multiple access link may be controlled to provide a policy framework for switching the service to different flow split links. For the related technical effect, refer to the embodiment shown in FIG. 3, and details are not described here again.

[0121] Optionally, as shown in FIG. 4, the QoS system 40 provided in this embodiment of the present application may further include a session management network element 403 .

[0122] The session management network element 403 is configured to send the first message to the second packet processor 402 . The first message carries a service flow identifier and a flow split policy corresponding to the service flow identifier, and the flow split policy is used to indicate that the service flow is allowed to split into a first flow split link and a second flow split link.

[0123] Accordingly, that the second packet processor 402 is configured to obtain the service flow identifier of the terminal includes: receiving a first message from the session control network element 403 .

[0124] That the second packet processor 402 is configured to obtain the correlation information of the first flow division link and the correlation information of the second flow division link includes: determining the correlation information of the first flow division link and the correlation information of the second division link flow.

[0125] For related descriptions of the flow split policy, see the embodiment shown in FIG. 3, and details are not described here again.

[0126] In other words, in this embodiment of the present application, the second packet processor 402 can learn, in accordance with the flow division policy sent by the session control network element 403, that the service flow is allowed to be divided into a first flow division link and a second communication link flow separation. Then, the second packet processor 402 may determine the first split link correlation information for the first split link and the second split link correlation information for the second split link.

[0127] Optionally, in this embodiment of the present application, the session control network element 403 and the second packet processor 402 may directly communicate with each other, or may communicate with each other via forwarding by another device. It is not specifically limited in this embodiment of this application.

[0128] Optionally, the quality of service monitoring system shown in FIG. 3 or fig. 4 may apply to the current 5G network, or may apply to another future network. In embodiments of the present application, this is not specifically limited.

[0129] If the QoS system shown in FIG. 3 or fig. 4 may be applied to the current 5G network, the network element or entity corresponding to the session control network element in FIG. 3 or fig. 4 may be an SMF network element in the 5G network shown in FIG. 1, a network element or entity corresponding to the user plane function network element of FIG. 3 may be a UPF network element in the 5G network shown in FIG. 1, the network element or object corresponding to the policy control network element of FIG. 3 may be a PCF network element in the 5G network shown in FIG. 1, a network element or entity corresponding to the first packet processor in FIG. 4 may be a terminal in the 5G network shown in FIG. 1, and the network element or entity corresponding to the second packet processor may be a UPF network element in the 5G network shown in FIG. one; or a network element or entity corresponding to the first packet processor in FIG. 4 may be a UPF network element in the 5G network shown in FIG. 1, and the network element or entity corresponding to the second packet processor may be a terminal in the 5G network shown in FIG. one.

[0130] Optionally, the terminal in embodiments of the present application may include various portable devices, vehicle-mounted devices, wearable devices or computing devices having a wireless communication function, or other data processing devices connected to a wireless modem. The terminal may alternatively include a subscriber unit, a cellular phone, a smart phone, a wireless data card, a personal digital assistant (PDA), a tablet computer, a wireless modem (modem ), handheld device, laptop computer, cordless phone or wireless local loop station (WLL), machine type communication terminal (MTC), user equipment (user equipment , UE), mobile station (mobile station, MS), terminal device (terminal device), relay user equipment, and the like. The relay user equipment may be, for example, a 5G residential gateway (RG). For ease of description in this application, the devices mentioned above are collectively referred to as a terminal.

[0131] Optionally, the access device in embodiments of the present application is a device that accesses the 5G core network, for example, may be a RAN or N3G-GW device in FIG. 1. For related descriptions, see the part in FIG. 1, and details are not described here again.

[0132] Optionally, in embodiments of the present application, the Session Control Network Element or User Plane Function Network Element of FIG. 3 or the first packet processor or the second packet processor in FIG. 4 may be implemented as a single device, or may be implemented as a plurality of devices, or may be a functional unit in one device. This is not specifically limited in the embodiments of the present application. It can be understood that the above functions may be network elements in a hardware device, or may be software functions executed on dedicated hardware, or may be virtualization functions implemented on a platform (eg, a cloud platform).

[0133] For example, in embodiments of the present application, the Session Control Network Element or User Plane Function Network Element of FIG. 3 or the first packet processor or the second packet processor in FIG. 4 can be implemented as the communication device of FIG. 5. FIG. 5 is a schematic diagram of a hardware structure of a communication device 500 according to an embodiment of the present application. The communication device 500 includes at least one processor 501, a communication line 502, a memory 503, and at least one communication interface 504.

[0134] The processor 501 may be a central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to control the execution of the solutions of the present application.

[0135] Link 502 may include a channel through which information is transmitted between the above components.

[0136] The communication interface 504 is a device that uses any transceiver and is configured to communicate with another device or communication network, such as Ethernet, a radio access network (RAN), or a wireless local area network (wireless local area network, WLAN ).

[0137] The memory 503 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, or a random access memory (RAM) or other type of dynamic storage device. which can store information and instructions; or may be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other compact disc storage device, optical storage disc (including compact optical disc, laser disc, optical disc, digital versatile optical disc, blue optical disc, etc.), magnetic disk media or other magnetic storage device, or any other media that can carry or store expected program code in the form of an instruction structure or in the form of a data structure that can be accessed by a computer. However, it is not limited to this. The memory 503 may exist independently and be connected to the processor 501 using the communication line 502. Alternatively, memory 503 may be integrated with processor 501.

[0138] The memory 503 is configured to store a computer-executable instruction for executing the solutions of the present application, and the processor 501 controls the execution of the computer-executable instruction. The processor 501 is configured to execute a computer-executable instruction stored in the memory 503 to implement the QoS method provided in the following embodiments of the present application.

[0139] Optionally, a computer-executable instruction in this embodiment of the present application may also be referred to as an application program code. It is not specifically limited in this embodiment of this application.

[0140] At a specific implementation time, in an embodiment, processor 501 may include one or more processors (CPUs), such as CPU 0 and CPU 1 in FIG. 5.

[0141] During a specific implementation in an embodiment, communication device 500 may include a plurality of processors, such as processor 501 and processor 508 in FIG. 5. Each of these processors may be a single-core (single-processor) processor or may be a multi-core (multi-processor) processor. Here, a processor may be one or more devices, circuits, and/or processing cores configured to process data (eg, computer program instructions).

[0142] During a specific implementation, in an embodiment, the communication device 500 may further include an output device 505 and an input device 506. The output device 505 interacts with the processor 501 and can display information in a variety of ways. For example, the output device 505 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector. Input device 506 communicates with processor 501 and can receive user input in a variety of ways. For example, input device 506 may be a mouse, keyboard, touch screen device, or touch device.

[0143] Communication device 500 may be a general purpose device or a dedicated device. During a particular implementation, communication device 500 may be a desktop computer, a laptop computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a device with a structure similar to that shown in FIG. . 5. The type of communication device 500 is not limited in this embodiment of this application.

[0144] The quality of service monitoring method provided in the embodiments of the present application will be described in detail below with reference to FIGS. 1 - fig. 5.

[0145] It should be noted that the names of messages between network elements in the following embodiments of the present application, the names of parameters in messages, and the like. are just examples and may have different names at the time of a particular implementation. This is not specifically limited in the embodiments of the present application.

[0146] For example, the quality of service monitoring system shown in FIG. 3 is applied to the 5G network shown in FIG. 1. FIG. 6A and FIG. 6B show a quality of service monitoring method according to an embodiment of the present application. The service quality control method includes the following steps.

[0147] S601. The terminal establishes, using the first access device, the first session PDU corresponding to the service flow.

[0148] S602. The terminal establishes, using the second access device, a second session PDU corresponding to the service flow.

[0149] For example, in this embodiment of the present application, the first access device may be a RAN device, and the second access device may be an N3G-GW; or the first access device may be an N3G-GW and the second access device may be a RAN device. It is not specifically limited in this embodiment of this application.

[0150] For the specific implementation of step S601 and step S602, refer to the existing implementation, and details are not described here.

[0151] S603. The terminal correlates the first PDU session with the second PDU session.

[0152] Optionally, in this embodiment of the present application, what the terminal associates the first session PDU with the second session PDU may be, for example, a terminal service flow identifier shared between the first session PDU and the second session PDU, so that the service flow may switch between the first PDU session and the second PDU session. For a specific implementation, refer to the existing implementation and details are not described here.

[0153] S604. The PCF network element sends a PDU session modification request 1 to the SMF network element, so that the SMF network element receives the PDU session modification request 1 from the PCF network element.

[0154] PDU session modification request 1 carries a service flow ID in which multipath switching can be performed and a flow split policy corresponding to the service flow ID, and the flow split policy is used to indicate that the service flow can be split on the first line a flow split link; and a second flow split link.

[0155] For related descriptions of the flow split policy and the service flow identifier, see the above part of the QoS system embodiment, and details are not described here again.

[0156] Optionally, the quality of service monitoring method provided in this embodiment of the present application may further include steps S605 to S607.

[0157] S605. The SMF network element sends an N4 session modification request to the UPF network element, so that the UPF network element receives the N4 session modification request from the SMF network element.

[0158] The session modification request N4 contains a service flow identifier for which multipath switching can be performed, a first QoS parameter of the first flow division link for transmitting the service flow, and correlation information of the first flow division link for the first flow division link, and a second parameter quality of service monitoring of the second flow division link for transmitting the service flow; and second flow division link correlation information for the second flow division link.

[0159] In this embodiment of the present application, for the associated descriptions of the service flow, the service flow identifier, the first quality of service control parameter, the first flow division link association information, the second quality of service control parameter, and the second flow division link association information, see the embodiment shown in FIG. 3, and details are not described here again.

[0160] S606. The UPF network element correlates the service flow identifier, the first QoS parameter, and the mapping information of the first flow division link; and the UPF network element correlates the service flow identifier, the second QoS parameter, and the correlation information of the second flow division link.

[0161] It should be noted that, for ease of description, the relationship between the service flow identifier, the first quality of service control parameter, and the corresponding flow split link correlation information (including the first stream split link correlation information in step S606 or the third stream split link correlation information, described below) may be referred to as the first relation; and the relationship between the service flow ID, the second QoS parameter, and the corresponding flow split link correlation information (including the second split link correlation information in step S606 or the fourth split link correlation information described below) is called the second relationship. This is mainly described here, and the details are again not described.

[0162] Optionally, in this embodiment of the present application, performing the first mapping may be, for example, storing or establishing a first mapping between the service flow identifier, the first quality of service parameter, and the corresponding flow split link mapping information (including the first link mapping information stream splitting in step S606 or the third split link correlation information described below); and performing the second mapping may be, for example, storing or establishing a second mapping between the service flow identifier, the second QoS parameter, and the corresponding flow split link link mapping information (including the second flow split link link mapping information in step S606 or the fourth link link mapping information flow separation connection described below). This is mainly described here, and the details are again not described.

[0163] After the UPF network element performs the first mapping, the UPF network element may monitor the quality of service of the first flow division link based on the first mapping. After the UPF network element performs the second mapping, the UPF network element may monitor the quality of service of the second flow division link based on the second mapping. It is not specifically limited in this embodiment of this application.

[0164] For example, the UPF network element may know, based on the flow split link mapping information and the service flow ID in the first match, that the quality of service of the first flow split link for transmitting the service flow is to be monitored. The UPF network element may learn, based on the first QoS control parameter in the first match, the specific control parameter that is used to control the QoS of the first flow division link. Therefore, in a scenario where there are multiple available links for a single service, the UPF network element can determine the quality of service of the flow split link that needs to be controlled to provide a policy framework for switching the service over the different flow split links.

[0165] S607. The UPF network element sends an N4 session modification response (N4 session modification response) to the SMF network element, so that the SMF network element receives an N4 session modification response from the UPF network element.

[0166] Optionally, the quality of service monitoring method provided in this embodiment of the present application may further include any of the following three cases.

[0167] Case 1: Optionally, the quality of service monitoring method provided in this embodiment of the present application may further include steps S608a to S612a.

[0168] S608a. The SMF network element sends an N2 session modification request (N2 session modification request) to the first access device, so that the first access device receives the N2 session modification request from the SMF network element.

[0169] The session modification request N2 comprises a service flow identifier, a first quality of service control parameter, a first flow division link association information, a second quality of service control parameter, and a second flow division link association information.

[0170] S609a. The first access device sends a session PDU modification request 2 to the terminal, so that the terminal receives a session PDU modification request 2 from the first access device.

[0171] The session modification request PDU carries a service flow identifier, a first QoS control parameter, a first flow split link mapping information, a second QoS control parameter, and a second flow split link correlation information.

[0172] S610a. This step is the same as step S606. The difference is, for example, that the UPF network element in step S606 is replaced by a terminal. For related descriptions, see step S606, and details are not described here again.

[0173] S611a. The terminal sends a Modify Session PDU Response 2 to the first access device, so that the first access device receives a Modify Session PDU Response 2 from the terminal.

[0174] S612a. The first access device sends a session modification response N2 to the SMF network element, such that the SMF network element receives a session modification response N2 from the first access device.

[0175] It should be noted that in this embodiment of the present application, step S611a and step S612a are optional steps. This is mainly described here, and the details are again not described.

[0176] Case 2: Optionally, the quality of service monitoring method provided in this embodiment of the present application may further include steps S608b to S612b.

[0177] S608b - S612b: These steps are the same as steps S608a through S612a. The difference is, for example, that the first access device in steps S608a to S612a is replaced by the second access device. For related descriptions, refer to steps S608a to S612a, and details are not described here again.

[0178] Case 3: Optionally, the quality of service monitoring method provided in this embodiment of the present application may further include steps S608c to S617.

[0179] S608c. The SMF network element sends N2 session modification request 1 to the first access device such that the first access device receives N2 session modification request 1 from the SMF network element.

[0180] N2 session modification request 1 contains a service flow identifier and a first QoS control parameter.

[0181] S609c. The first access device sends a session PDU modification request 3 to the terminal, so that the terminal receives a session PDU modification request 3 from the first access device.

[0182] PDU session modification request 3 carries a service flow identifier and a first QoS control parameter.

[0183] S610c. The terminal correlates the service flow identifier, the first QoS parameter, and the correlation information of the third flow division link.

[0184] Optionally, in this embodiment of the present application, the correlation information of the third flow division link may be determined based on the information of the first access device. In other words, the terminal can determine the third flow division link correlation information based on the state of the flow division link used to transmit the PDU session modification request 3, and does not need to add the first flow division link information to the PDU session modification request 3.

[0185] For related descriptions of the third flow division link correlation information, see the above part of the quality of service monitoring system, and details are not described here again.

[0186] Optionally, in this embodiment of the present application, the PDU session modification request 3 may further carry the first flow split link mapping information, so that the terminal can correlate the service flow identifier, the first QoS parameter, and the first flow split link mapping information. It is not specifically limited in this embodiment of this application.

[0187] Optionally, for the specific implementation in which the terminal performs the first correlation in this embodiment of the present application, refer to step S606, and details are not described here again.

[0188] After the terminal performs the first correlation, the terminal may monitor the quality of service of the first flow division link based on the first correlation. For a related example, see step S606, and details are not described here again.

[0189] S611c. The terminal sends a Modify Session PDU Response 3 to the first access device, so that the first access device receives a Modify Session PDU Response 3 from the terminal.

[0190] S612c. The first access device sends session modification response 1 N2 to the SMF network element, so that the SMF network element receives session modification response 1 N2 from the first access device.

[0191] It should be noted that in this embodiment of the present application, step S611a and step S612a are optional steps. This is mainly described here, and the details are again not described.

[0192] S613. The SMF network element sends the N2 session modification request 2 to the second access device, so that the second access device receives the N2 session modification request 2 from the SMF network element.

[0193] N2 session modification request 2 carries a service flow identifier and a second quality of service control parameter.

[0194] S614. The second access device sends a session PDU modification request 4 to the terminal, so that the terminal receives a session PDU modification request 4 from the second access device.

[0195] PDU session modification request 4 carries a service flow identifier and a second quality of service control parameter.

[0196] S615. The terminal correlates the service flow identifier, the second QoS parameter, and the correlation information of the fourth flow division link.

[0197] Optionally, in this embodiment of the present application, the correlation information of the fourth flow division link may be determined based on the information of the second access device. In other words, the terminal can determine the correlation information of the fourth flow division link based on the state of the flow division link used to transmit the PDU session modification request 4, and does not need to add the second flow division link information to the PDU session modification request 4.

[0198] For related descriptions of the correlation information of the fourth communication link of the flow division, see the above part of the quality of service monitoring system, and the details are not described here again.

[0199] Optionally, in this embodiment of the present application, the PDU session modification request 4 may further carry the second flow split link mapping information, so that the terminal can correlate the service flow identifier, the first QoS parameter, and the second flow split link mapping information. It is not specifically limited in this embodiment of this application.

[0200] Optionally, for the specific implementation in which the terminal performs the second correlation in this embodiment of the present application, refer to step S606, and details are not described here again.

[0201] S616. The terminal sends a Modify Session PDU Response 4 to the second access device, so that the second access device receives a Modify Session PDU Response 4 from the terminal.

[0202] S617. The second access device sends session modification response 2 N2 to the SMF network element, so that the SMF network element receives session modification response 2 N2 from the second access device.

[0203] It should be noted that in this embodiment of the present application, step S616 and step S617 are optional steps. This is mainly described here, and the details are again not described.

[0204] It should be noted that in this embodiment of the present application, there is no necessary sequence of steps S608c to S612c and steps S613 to S617. Steps S608c-S612c may be performed before steps S613-S617. Alternatively, steps S613 to S617 may be performed before steps S608c to S612c. Alternatively, steps S608c to S612c may be performed simultaneously with steps S613 to S617. It is not specifically limited in this embodiment of this application.

[0205] It should be noted that if the quality of service monitoring method provided in this embodiment of the present application includes steps S605 to S607 and steps S608a to S612a, or steps S608b to S612b, or steps S608c to S617 , there is no necessary sequence of steps S605 to S607 and steps S608a to S612a, or steps S608b to S612b, or steps S608c to S617. Steps S605-S607 may be performed before steps S608a-S612a, steps S608b-S612b, or steps S608c-S617. Alternatively, steps S608a to S612a, or steps S608b to S612b, or steps S608c to S617 may be performed before steps S605 to S607. Alternatively, steps S608a to S612a, or steps S608b to S612b, or steps S608c to S617 may be performed simultaneously with steps S605 to S607. It is not specifically limited in this embodiment of this application.

[0206] According to the quality of service monitoring method provided in this embodiment of the present application, in a multiple access scenario, in other words, in a scenario in which there are multiple available links for one service, the quality of service for the multiple access link can be controlled for providing a policy framework for service switching over different flow split links. For the analysis of the corresponding technical effect, refer to the previous part of the service quality control system, and the details are not described again here.

[0207] The actions of the SMF network element, UPF network element, or terminal in steps S601 to S617 may be performed by the processor 501 in the communication device 500 shown in FIG. 5 by calling the application program code stored in the memory 503. In this embodiment, this is not limited.

[0208] For example, the quality of service monitoring system shown in FIG. 4 is applied to the 5G network shown in FIG. 1. FIG. 7A and FIG. 7B show a quality of service monitoring method according to an embodiment of the present application. The service quality control method includes the following steps.

[0209] S701 - S704: These steps are the same as steps S601 to S604. For related descriptions, see the embodiment shown in FIG. 6A and FIG. 6B, and details are not described here again.

[0210] S705. The SMF network element sends the N4 session modification request to the UPF network element, so that the UPF network element receives the N4 session modification request from the SMF network element.

[0211] The session modification request N4 carries a service flow identifier and a flow split policy corresponding to the service flow identifier.

[0212] S706. The UPF network element sends the N4 session modification response to the SMF network element, so that the SMF network element receives the N4 session modification response from the UPF network element.

[0213] The quality of service monitoring method provided in this embodiment of the present application may further include any of the following two cases.

[0214] Case 1: Optionally, the quality of service monitoring method provided in this embodiment of the present application may further include steps S707a and S708a.

[0215] S707a. The SMF network element sends a session modification request N2 to the first access device, such that the first access device receives the session modification request N2 from the SMF network element.

[0216] The N2 session modification request contains a service flow identifier and a flow split policy corresponding to the service flow identifier.

[0217] S708a. The first access device sends a session PDU modification request 2 to the terminal, so that the terminal receives a session PDU modification request 2 from the first access device.

[0218] PDU session modification request 2 carries a service flow identifier and a flow split policy corresponding to the service flow identifier, so that the terminal can store the service flow identifier and the corresponding flow split policy. Therefore, the terminal may subsequently split the service flow in accordance with the flow split policy. It is not specifically limited in this embodiment of this application.

[0219] Case 2: Optionally, the quality of service monitoring method provided in this embodiment of the present application may further include steps S707b and S708b.

[0220] S707b and S708b: These steps are the same as steps S607a and S608a. The difference is, for example, that the first access device in steps S607a and S608a is replaced by the second access device. For related descriptions, see steps S607a and S608a, and details are not described here again.

[0221] The quality of service monitoring method provided in this embodiment of the present application may further include any of the following three cases.

[0222] Case 1: Optionally, the quality of service monitoring method provided in this embodiment of the present application may further include steps S709a to S711a.

[0223] S709a. The UPF network element sends a QoS connection establishment request to the terminal using the first access device, so that the terminal receives the QoS connection establishment request from the UPF network element using the first access device.

[0224] The QoS connection establishment request comprises a service flow identifier, a first quality of service control parameter, a first flow split link correlation information, a second QoS control parameter, and a second flow split link correlation information.

[0225] S710a. This step is the same as S610a. For related descriptions, see the embodiment shown in FIG. 6A and FIG. 6B, and details are not described here again.

[0226] S711a. The terminal sends a QoS connection establishment response to the UPF network element using the first access device, such that the UPF network element receives a QoS connection establishment response from the terminal using the first access device.

[0227] It should be noted that in this embodiment of the present application, step S711a is optional. This is mainly described here, and the details are again not described.

[0228] Case 2: Optionally, the quality of service monitoring method provided in this embodiment of the present application may further include steps S709b to S711b.

[0229] S709b - S711b: These steps are the same as steps S709a to S711a. The difference is, for example, that the first access device in steps S709a to S711a is replaced by the second access device. For related descriptions, refer to steps S709a to S711a, and details are not described here again.

[0230] Case 3: Optionally, the quality of service monitoring method provided in this embodiment of the present application may further include steps S709c to S714.

[0231] S709c. The UPF network element sends a QoS connection establishment request 1 using the first access device to the terminal, so that the terminal receives a QoS connection establishment request 1 from the UPF network element using the first access device.

[0232] QoS connection establishment request 1 carries a service flow identifier and a first quality of service control parameter.

[0233] S710c. This step is the same as step S610c. For related descriptions, see the embodiment shown in FIG. 6A and FIG. 6B, and details are not described here again.

[0234] S711c. The terminal sends a QoS connection establishment response 1 to the UPF network element using the first access device, so that the UPF network element receives a QoS connection establishment response 1 from the terminal using the first access device.

[0235] It should be noted that in this embodiment of the present application, step S711c is optional. This is mainly described here, and the details are again not described.

[0236] S712. The UPF network element sends a QoS connection establishment request 2 using the second access device to the terminal, so that the terminal receives a QoS connection establishment request 2 from the UPF network element using the second access device.

[0237] QoS connection establishment request 2 carries a service flow identifier and a second quality of service control parameter.

[0238] S713. This step is the same as step S615. For related descriptions, see the embodiment shown in FIG. 6A and FIG. 6B, and details are not described here again.

[0239] S714. The terminal sends a QoS connection establishment response 2 to the UPF network element using the second access device, so that the UPF network element receives a QoS connection establishment response 2 from the terminal using the second access device.

[0240] It should be noted that in this embodiment of the present application, step S714 is optional. This is mainly described here, and the details are again not described.

[0241] It should be noted that there is no necessary sequence of steps S709c-S711c and steps S712-S714 in this embodiment of the present application. Steps S709c-S711c may be performed before steps S712-S714. Alternatively, steps S712-S714 may be performed before steps S709c-S711c. Alternatively, steps S709c to S711c may be performed simultaneously with steps S712 to S714. It is not specifically limited in this embodiment of this application.

[0242] According to the quality of service monitoring method provided in this embodiment of the present application, in a multiple access scenario, in other words, in a scenario in which there are multiple available links for one service, the quality of service for the multiple access link can be controlled for providing a policy framework for service switching over different flow split links. For the analysis of the corresponding technical effect, refer to the previous part of the service quality control system, and the details are not described again here.

[0243] The actions of the SMF network element, UPF network element, or terminal in steps S701 to S714 may be performed by the processor 501 in the communication device 500 shown in FIG. 5 by calling the application program code stored in the memory 503. In this embodiment, this is not limited.

[0244] For example, the quality of service monitoring system shown in FIG. 4 is applied to the 5G network shown in FIG. 1. FIG. 8A and FIG. 8B show a quality of service monitoring method according to an embodiment of the present application. The service quality control method includes the following steps.

[0245] S801 - S808b: These steps are the same as steps S701 to S707b. For related descriptions, see the embodiment shown in FIG. 7A and FIG. 7B, and details are not described here again.

[0246] The quality of service monitoring method provided in this embodiment of the present application may further include any of the following three cases.

[0247] Case 1: Optionally, the quality of service monitoring method provided in this embodiment of the present application may further include steps S809a to S811a.

[0248] S809a - S811a: These steps are the same as steps S709a to S711a. The difference is, for example, that the terminal in steps S709a to S711a is replaced by a UPF network element, and the UPF network element in steps S709a to S711a is replaced by a terminal. For related descriptions, refer to steps S709a to S711a, and details are not described here again.

[0249] Case 2: Optionally, the quality of service monitoring method provided in this embodiment of the present application may further include steps S809b to S811b.

[0250] S809b - S811b: These steps are the same as steps S709a to S711b. The difference is, for example, that the terminal in steps S709b to S711b is replaced by a UPF network element, and the UPF network element in steps S709b to S711b is replaced by a terminal. For related descriptions, refer to steps S709b to S711b, and details are not described here again.

[0251] Case 3: Optionally, the quality of service monitoring method provided in this embodiment of the present application may further include steps S809c to S814.

[0252] S809c - S814: These steps are the same as steps S709c to S714. The difference is, for example, that the terminal in steps S709c to S714 is replaced by a UPF network element, and the UPF network element in steps S709c to S714 is replaced by a terminal. For related descriptions, refer to steps S709c to S714, and details are not described here again.

[0253] According to the quality of service monitoring method provided in this embodiment of the present application, in a multiple access scenario, in other words, in a scenario in which there are multiple available links for one service, the quality of service for the multiple access link can be controlled for providing a policy framework for service switching over different flow split links. For the analysis of the corresponding technical effect, refer to the previous part of the service quality control system, and the details are not described again here.

[0254] The actions of the SMF network element, UPF network element, or terminal in steps S801 to S814 may be performed by the processor 501 in the communication device 500 shown in FIG. 5 by calling the application program code stored in the memory 503. In this embodiment, this is not limited.

[0255] An example in which the establishment of the first QoS connection corresponding to the first flow division link and the establishment of the second QoS connection corresponding to the second flow division link is simultaneously initiated is used to describe FIG. 5 - fig. 7A and FIG. 7B. Optionally, in embodiments of the present application, the first QoS connection corresponding to the first flow division link may be first established according to a method similar to the above. In addition, after it is determined according to the policy that the service flow is to be split into the second flow division link, the second QoS connection corresponding to the second flow division link is established according to a method similar to the above method. This is not specifically limited in the embodiments of the present application.

[0256] In addition, optionally, in the above embodiments of the present application, an example is used for description in which a service flow is divided into a first flow division link and a second flow division link. Of course, the service flow may alternatively be split into more than two flow split links. For example, the service flow is divided into a first flow split link, a second flow split link, and a third flow split link. In this case, for the QoS connection establishment method corresponding to each flow division link, refer to the above embodiments shown in FIG. 5 - fig. 7A and FIG. 7B, and details are not described here again.

[0257] The solutions provided in the embodiments of the present application are mainly described in terms of interaction between network elements. It can be understood that in order to implement the above functions, the communication device or the first packet processor includes appropriate hardware structures and/or software modules to perform the above functions. One of ordinary skill in the art will readily recognize that, in combination with the examples described in the embodiments disclosed in this specification, the blocks and steps of an algorithm may be implemented in hardware or a combination of hardware and computer software in this application. Whether a particular function is performed by hardware or by hardware controlled by computer software depends on particular applications and design constraints. A person skilled in the art can use different methods to implement the described functions for each particular application, but it should not be considered that the implementation is outside the scope of this application.

[0258] In the embodiments of the present application, the functional modules of the communication device or the first packet processor can be obtained through separation based on the above example methods. For example, functional modules may be obtained through division based on respective functions, or two or more functions may be integrated into one processing module. The above integrated module may be implemented in hardware or may be implemented in software function module. It should be noted that in the embodiments of this application, the division into modules is an example and is simply a division of logical functions and may be another division during actual implementation.

[0259] For example, in the case where the functional modules are obtained through separation by the integration method, FIG. 9 is a schematic block diagram of a communication device 90 . The communication device 90 includes a processing module 901 and a transceiver module 902. The processing unit 901 is configured to obtain a service flow identifier of the terminal, a first QoS parameter of the first flow split link for transmitting the service flow, and first split link mapping information of the first flow split link, and a second QoS parameter of the second link. flow splitting for transmitting the service flow; and second splitting link mapping information for the second splitting flow link. The transceiver module 902 is configured to initiate, based on the service flow identifier, the first QoS parameter, the first flow split link correlation information, the second QoS control parameter, and the second split link link correlation information, to establish the first QoS connection corresponding to the first a flow split link; and a second QoS connection corresponding to the second flow split link.

[0260] Optionally, communication device 90 is a network session control element. Accordingly, that the processing unit 901 is configured to obtain the service flow identifier of the terminal includes: receiving a first message from the network policy control element, where the first message carries the service flow identifier and the flow split policy corresponding to the service flow identifier, and the split policy flow is used to indicate that the service flow is allowed to split into a first flow split link and a second flow split link; and that the processing unit 901 is configured to obtain first flow division link correlation information for the first flow division link and second flow division link correlation information for the second flow division link includes: determining first flow division link correlation information for the first link of the flow division and correlation information of the second communication line of the division of the flow for the second communication line of the division of the flow.

[0261] In a possible implementation, communication device 90 is a network session control element. The transceiver module 902 is specifically configured to send the service flow identifier, the first quality of service control parameter, the first flow division link mapping information, the second quality of service control parameter, and the second flow division link association information to the user plane function network element.

[0262] Alternatively, the transceiver module 902 is specifically configured to send the service flow identifier, the first quality of service control parameter, the first split link link correlation information, the second QoS parameter, and the second split link link correlation information to terminal using the first access device corresponding to the first flow division link, or the second access device corresponding to the second flow division link, where the service flow identifier, the first QoS control parameter, and the correlation information of the first flow division link are used to control the quality of service of the first flow separation communication lines; and the service flow identifier, the second quality of service control parameter, and the correlation information of the second flow division link are used for quality of service control of the second flow division link.

[0263] In another possible implementation, communication device 90 is a session control network element. The transceiver module 902 is specifically configured to send the service flow identifier, the first quality of service control parameter, the first flow division link association information, the second quality of service control parameter, and the second flow division link association information to the user plane function network element, when therein, the service flow identifier, the first quality of service control parameter, and the correlation information of the first flow division link are used for quality of service control of the first flow division link; and the service flow identifier, the second quality of service control parameter, and the correlation information of the second flow division link are used for quality of service control of the second flow division link.

[0264] Alternatively, the transceiver module 902 is specifically configured to: send the service flow identifier and the first QoS parameter to the terminal based on the correlation information of the first split link using the first access device corresponding to the first split link a flow, where the service flow identifier and the first quality of service control parameter are used to control the quality of service of the first flow split link; and sending the service flow ID and the second QoS parameter to the terminal based on the correlation information of the second flow split link using the second access device corresponding to the second flow split link, where the service flow ID and the second QoS parameter are used for QoS control. a second flow split link.

[0265] Optionally, the communication device includes a terminal or a user plane function network element. Accordingly, that the processing unit 901 is configured to obtain the service flow identifier of the terminal includes: receiving a second message from the network session control element, where the second message carries the service flow identifier and the flow split policy corresponding to the service flow identifier, and the split policy flow is used to indicate that the service flow is allowed to split into a first flow split link and a second flow split link; and that the processing unit 901 is configured to obtain first flow division link correlation information for the first flow division link and second flow division link correlation information for the second flow division link includes: determining first flow division link correlation information for the first link of flow division and correlation information of the second communication line of division of the flow for the second communication line of division of the flow.

[0266] In an exemplary implementation, the communication device is a network element of a user plane function, and the transceiver module 902 is specifically configured to send a service flow identifier, a first quality of service control parameter, a first flow split communication link correlation information, a second quality of service control parameter and mapping information of the second flow division link to the terminal using the first access device corresponding to the first flow division link or the second access device corresponding to the second flow division link, where the service flow identifier, the first quality of service control parameter, and the first link association information the flow division links are used to control the quality of service of the first flow division link; and the service flow identifier, the second quality of service control parameter, and the correlation information of the second flow division link are used for quality of service control of the second flow division link.

[0267] In another possible implementation, the communication device is a user plane function network element, and the transceiver module 902 is specifically configured to: using a first access device corresponding to the first flow split link, where the service flow identifier and the first quality of service control parameter are used to control the quality of service of the first split flow link; and sending the service flow ID and the second QoS parameter to the terminal based on the correlation information of the second flow split link using the second access device corresponding to the second flow split link, where the service flow ID and the second QoS parameter are used for QoS control. a second flow split link.

[0268] In yet another possible implementation, the communication device is a terminal, and the transceiver module 902 is specifically configured to send a service flow identifier, a first quality of service control parameter, first flow split communication link correlation information, a second quality of service control parameter, and information mapping a second flow division link to a user plane function network element using a first access device corresponding to the first flow division link or a second access device corresponding to the second flow division link, where the service flow identifier, the first quality of service control parameter, and the mapping information the first flow split link is used to monitor the quality of service of the first flow split link; and the service flow identifier, the second quality of service control parameter, and the correlation information of the second flow division link are used for quality of service control of the second flow division link.

[0269] In yet another possible implementation, the communication device is a terminal, and the transceiver module 902 is specifically configured to: send a service flow identifier and a first quality of service parameter to a user plane function network element based on the correlation information of the first flow split communication link using a first access device corresponding to the first flow split link, where the service flow identifier and the first QoS control parameter are used to control the quality of service of the first flow split link; and sending the service flow identifier and the second quality of service control parameter to the network element of the user plane function based on the correlation information of the second flow division link using the second access device corresponding to the second flow division link, where the service flow identifier and the second quality of service control parameter are used. for monitoring the quality of service of the second flow division link.

[0270] All related contents of the steps in the above method embodiments can be cited in the function descriptions of the respective functional modules, and details are not described here again.

[0271] In this embodiment, the communication device 90 is provided with functional modules obtained through separation by an integration method. A "module" herein may be a specific ASIC, circuit, processor executing one or more software or firmware, memory, integrated logic circuit, and/or other device that can provide the above functions. In a simple embodiment, one of skill in the art can understand that communication device 90 can use the form shown in FIG. 5.

[0272] For example, processor 501 in FIG. 5 can call the computer-executable instruction stored in the memory 503 so that the communication device 90 executes the QoS method in the above method embodiment.

[0273] In particular, the functions/processes of implementing the processing module 901 and the transceiver module 902 in FIG. 9 may be implemented by the processor 501 in FIG. 5 by calling a computer-executable instruction stored in memory 503. Alternatively, the functions/processes for implementing transceiver module 902 in FIG. 9 may be implemented by the communication interface 504 of FIG. 5 and the functions/processes of implementing the processing unit 901 in FIG. 9 may be implemented by the processor 501 in FIG. 5 by calling a computer-executable instruction stored in memory 503.

[0274] The communication device 90 provided in this embodiment can perform the above quality of service monitoring method. Therefore, for the technical effects that can be achieved by the communication device 90, refer to the above method embodiment, and details are not described here again.

[0275] Optionally, an embodiment of the present application further provides a chip system. The chip system includes a processor configured to support the communication device in implementing the above quality of service monitoring method, for example, obtaining a service flow identifier of the terminal, a first quality of service parameter of the first flow splitting link for transmitting the service flow, and mapping information of the first splitting link. flow split link for the first flow split link and a second QoS parameter of the second split link for transmitting the service flow and the second split link correlation information for the second split link. In an exemplary implementation, the chip system further includes memory. The memory is configured to store program instructions and data necessary for the communication device. Of course, memory may alternatively be absent from the chip system. The chip system may include a chip, or may include a chip and other discrete device. It is not specifically limited in this embodiment of this application.

[0276] For example, in the case where functional modules are obtained through separation by an integration method, FIG. 10 is a schematic block diagram of the first packet processing apparatus 100. The first packet processing apparatus 100 includes an acquisition module 1001 and a mapping module 1002 . The obtaining unit 1001 is configured to obtain a service flow identifier of the terminal, a first quality of service parameter of the first flow division link for transmitting the service flow, and correlation information of the first flow division link of the first flow division link, and a second quality of service parameter of the second flow division link. flow splitting for transmitting the service flow; and second splitting link mapping information for the second splitting flow link. The mapping unit 1002 is configured to: correlate the service flow identifier, the first QoS parameter, and the correlation information of the first flow split link; and correlating the service flow identifier, the second QoS parameter, and the correlation information of the second flow split link.

[0277] Optionally, the acquisition module 1001 is specifically configured to receive a service flow identifier, a first quality of service control parameter, a first flow division link correlation information, a second quality of service control parameter, and a second flow division link correlation information from the network element. session management.

[0278] Alternatively, optionally, the acquisition module 1001 is specifically configured to receive a service flow identifier, a first quality of service control parameter, a first split link correlation information, a second split link quality of service parameter, and a second split link correlation information. stream from the second packet processor using a first access device corresponding to the first flow split link or a second access device corresponding to the second flow split link.

[0279] Alternatively, optionally, the acquisition module 1001 is specifically configured to: receive a service flow identifier and a first QoS parameter from a second packet processor using a first access device corresponding to the first flow division link, and determine correlation information of the first link flow division based on information about the first access device; and receiving the service flow identifier and the second QoS parameter from the second packet processor using the second access device corresponding to the second flow split link, and determining the second split link correlation information based on the second access device information.

[0280] Optionally, the mapping module 1002 is configured to correlate the service flow identifier, the first QoS control parameter, and the correlation information of the first flow split communication link, includes: maintaining a mapping between the service flow identifier, the first QoS control parameter, and the correlation information of the first flow split link.

[0281] Optionally, that the mapping module 1002 correlates the service flow identifier, the second quality of service control parameter, and the correlation information of the second flow split link includes: maintaining a mapping between the service flow identifier, the second quality of service control parameter, and the correlation information of the second flow separation communication lines.

[0282] Optionally, as shown in FIG. 10, the first packet processing apparatus 100 further includes a control unit 1003. The monitoring unit 1003 is configured to monitor the quality of service of the first flow division link based on the service flow ID, the first quality of service monitoring parameter, and the correlation information of the first flow division link; or the monitoring module 1003 is configured to monitor the quality of service of the second flow division link based on the service flow identifier, the second quality of service monitoring parameter, and the correlation information of the second flow division link.

[0283] All related contents of the steps in the above method embodiments can be cited in the function descriptions of the respective functional modules, and details are not described here again.

[0284] In this embodiment, the first packet processor 100 is represented by functional modules obtained by separation by an integration method. A "module" herein may be a specific ASIC, circuit, processor executing one or more programs or firmware, memory, integrated logic circuit, and/or other device that can provide the above function. In a simple embodiment, one of skill in the art can understand that communication device 90 can use the form shown in FIG. 5.

[0285] For example, processor 501 in FIG. 5 can call the computer-executable instruction stored in the memory 503 so that the first packet processing apparatus 100 executes the QoS method in the above method embodiment.

[0286] In particular, the functions/processes for implementing the acquisition module 1001, the correlation module 1002, and the control module 1003 in FIG. 10 may be implemented by processor 501 in FIG. 5 by calling a computer-executable instruction stored in memory 503.

[0287] The first packet processing apparatus 100 provided in this embodiment can perform the above-mentioned QoS method. Therefore, for technical effects that can be achieved by the first packet processing apparatus 100, refer to the above method embodiment, and details are not described here again.

[0288] Optionally, an embodiment of the present application further provides a chip system. The chip system includes a processor configured to support the first packet processor while implementing the above quality of service monitoring method, for example, matching a service flow identifier, a first quality of service control parameter, and matching information of a first flow split link; and correlating the service flow identifier, the second QoS parameter, and the correlation information of the second flow split link. In an exemplary implementation, the chip system further includes memory. The memory is configured to store program instructions and data that are needed by the first packet processor. Of course, memory may alternatively be absent from the chip system. The chip system may include a chip, or may include a chip and other discrete device. It is not specifically limited in this embodiment of this application.

[0289] All or some of the above embodiments may be implemented using software, hardware, firmware, or any combination thereof. When software is used to implement the embodiments, all or some of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When computer program instructions are downloaded and executed on a computer, procedures or functions according to embodiments of the present application are generated in whole or in part. The computer may be a general purpose computer, a specialized computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer-readable storage medium or may be transferred from a computer-readable storage medium to another computer-readable storage medium. For example, computer instructions may be transmitted from a website, computer, server, or data center to another website, computer, server, or data center by wire (such as coaxial cable, optical fiber, or digital subscriber line, DSL)) or wireless (eg infrared, radio or microwave) method. A computer-readable storage medium can be any usable storage medium that is accessible to a computer, or a storage device, such as a server or data center, that combines one or more usable storage media. The storage medium used may be a magnetic medium (eg, a floppy disk, hard disk, or magnetic tape), an optical medium (eg, a DVD), a semiconductor medium (eg, a solid state disk (SSD)) or the like.

[0290] While the present application has been described herein with reference to embodiments, in the course of implementing the present application that seeks protection, one skilled in the art can understand and implement another variation of the disclosed embodiments by viewing the accompanying drawings, the disclosure, and the appended claims. . In the claims, "comprising" does not exclude another component or another step, and "a" or "one" does not exclude the meaning of a plurality. One processor or other block can perform several functions listed in the claims. Some measures are described in dependent claims that differ from each other, but this does not mean that these measures cannot be combined to obtain a better effect.

[0291] Although the present application has been described with reference to specific features and their embodiments, it is obvious that various modifications and combinations can be made to them without going beyond the essence and scope of this application. Accordingly, this description and the accompanying drawings are merely exemplary for describing the present application as defined by the appended claims, and are construed as any or all modifications, variations, combinations, or equivalents that fall within the scope of this application. Obviously, a person skilled in the art can make various modifications and changes to the present application without going beyond the spirit and scope of the present application. The present application is intended to cover these modifications and variations of the present application, provided that they fall within the scope of the following claims and their equivalent technologies.

Claims (28)

1. A method for monitoring the quality of service, containing the steps at which: receive, by means of the first packet processing apparatus, the service flow identifier of the terminal, the first QoS parameter of the first flow division link for transmitting the service flow, and the correlation information of the first flow division link for the first flow division link, and the second QoS parameter of the second flow division link for transmitting the service flow and the mapping information of the second flow division link for the second flow division link; and correlating, by means of the first packet processor, the service flow identifier, the first QoS parameter, and the correlation information of the first flow split link; and correlating, by means of the first packet processor, the service flow identifier, the second QoS parameter, and the correlation information of the second flow division link. 2. The method of claim 1, wherein the first packet processor comprises a user plane function terminal or network element. 3. The method according to claim 1 or 2, wherein the step of obtaining, by the first packet processor, a service flow identifier, a first QoS parameter of the first flow split link for transmitting the service flow, and mapping information of the first flow split link for the first split link of the flow and the second QoS parameter of the second flow division link for transmitting the service flow and the correlation information of the second flow division link for the second flow division link comprises the step of: receiving, by means of the first packet processor, a service flow identifier, a first quality of service control parameter, first flow division link association information, a second quality of service control parameter, and second flow division link association information from the session network control element; or receiving, by means of the first packet processor, the service flow identifier, the first quality of service control parameter, the correlation information of the first flow division link, the second quality of service parameter, and the correlation information of the second flow division link from the second packet processor using the first access device corresponding to the first a flow division link, or a second access device corresponding to a second flow division link; or receiving, by means of the first packet processor, a service flow identifier and a first QoS parameter from the second packet processor using the first access device corresponding to the first flow split link, and determining the correlation information of the first flow split link based on the information of the first access device; and receiving, by means of the first packet processor, the service flow identifier and the second quality of service control parameter from the second packet processor using the second access device corresponding to the second flow division link, and determining the correlation information of the second flow division link based on the information of the second access device . 4. The method according to any one of paragraphs. 1-3, wherein the step of correlating, by the first packet processor, the service flow identifier, the first QoS parameter, and the correlation information of the first flow split link comprises: storing, by the first packet processor, a correspondence between the service flow identifier, the first QoS parameter, and the correlation information of the first flow split link; and the step of correlating, by the first packet processor, the service flow identifier, the second QoS parameter, and the correlation information of the second flow split link, comprising: storing, by means of the first packet processor, a correspondence between the service flow identifier, the second QoS parameter, and the correlation information of the second flow division link. 5. The method according to any one of paragraphs. 1-4, wherein the method further comprises the step of: controlling, by means of the first packet processor, a quality of service of the first flow division link based on the service flow identifier, the first quality of service control parameter, and the correlation information of the first flow division link; or controlling, by the first packet processor, the quality of service of the second flow division link based on the service flow identifier, the second quality of service control parameter, and the correlation information of the second flow division link. 6. The method according to any one of paragraphs. 1 to 5, in which the correlation information of the first flow division link is information used to identify that the first QoS control parameter is used to monitor the quality of service of the first flow division link, and the correlation information of the second flow division link is information used to identify that the second QoS parameter is used to control the QoS of the second flow division link. 7. The method according to any one of paragraphs. 1-6, in which the first flow division link mapping information comprises a first access type corresponding to the first flow division link, a first session identifier corresponding to the first flow division link, a first tunnel identifier corresponding to the first flow division link, or a first control identifier corresponding to the first flow division link flow separation; and the second flow division link mapping information comprises a second access type corresponding to the second flow division link, a second session ID corresponding to the second flow division link, a second tunnel identifier corresponding to the second flow division link, or a second control identifier corresponding to the second flow division link flow separation. 8. The method according to any one of paragraphs. 1-7, where the service flow identifier is a 5-tuple, a terminal address, or a quality of service flow identifier. 9. The method according to any one of paragraphs. 1-8, wherein the first access type corresponding to the first flow division link is 3GPP 3rd Generation Partnership Project access and the second access type corresponding to the second flow division link is non-3GPP access; or the first access type corresponding to the first flow division link is non-3GPP access, and the second access type corresponding to the second flow division link is 3GPP access. 10. The method of claim 5, wherein the step of monitoring, by the first packet processor, the quality of service of the first flow division link based on the service flow identifier, the first QoS control parameter, and the correlation information of the first flow division link comprises: : knowing, based on the mapping information of the first flow division link and the service flow ID, that the quality of service of the first flow division link is to be monitored; recognizing, based on the first quality of service monitoring parameter, a particular monitoring parameter used for quality of service monitoring of the first flow division link. 11. The quality of service monitoring device, configured to perform the quality of service monitoring method according to any one of paragraphs. 1-10. 12. The quality control system of service, containing a device configured to perform a method of monitoring the quality of service according to any one of paragraphs. 1-10. 13. A computer-readable storage medium containing a computer program, and when the computer program is run on the computer, the computer is enabled to perform the quality of service monitoring method according to any one of paragraphs. 1-10.

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