METHOD AND DEVICE FOR SUBSCRIPTION TO RESULT OF QoS CONTROL, COMMUNICATION DEVICE AND DATA MEDIA

Abstract

FIELD: wireless communications.SUBSTANCE: invention relates to a method for subscribing to quality of service (QoS) monitoring measurements. The first network function sends the first request information to the second network function during the QoS request procedure of the application function (AF function). The first request information serves to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows.EFFECT: implementing coordination between service data flows (SDF flows) based on QoS control measurements.13 cl, 26 dwg

Description

AREA OF TECHNOLOGY

[0001] The disclosed invention relates, among other things, to the field of wireless communication technologies, in particular to a method for subscribing to quality of service (QoS) monitoring measurements, a corresponding device, a communication device and a data carrier. BACKGROUND TO THE INVENTION

[0002] The Extended Reality Media (XRM) service requires comprehensive consideration of the quality of service (QoS) characteristics of data service-related flows. The QoS authorization and implementation for multiple XRM data flows of a single terminal and XRM data flows of multiple terminals need to be coordinated and uniform. According to known solutions, an application function (AF) is provided to ensure QoS perception and coordination for multiple XRM service data flows, and the corresponding session can be updated to ensure QoS policy uniformity for the non-real-time XRM service. However, the actual QoS needs of service data flows (SDFs) and the QoS coordination status of multiple real-time flows in the network cannot be perceived, and proper coordination for multiple data flows cannot be ensured.ESSENCE OF THE INVENTION.

[0003] Embodiments of the disclosed invention provide methods and devices for subscribing to quality of service (QoS) monitoring measurements, as well as a corresponding communication device and data carrier.

[0004] According to a first aspect of one embodiment of the disclosed invention, a method for subscribing to QoS monitoring measurements is provided. The method is performed by a first network function. The method includes the step of sending first request information to a second network function, wherein the first request information is used to request a subscription to QoS monitoring measurements obtained by performing QoS monitoring of at least two service data flows (SDF flows).

[0005] According to a second aspect of one embodiment of the disclosed invention, a method for subscribing to QoS monitoring measurements is provided. The method is performed by a second network function, wherein the method includes a step of receiving first request information sent by the first network function, wherein the first request information serves to request a subscription to QoS monitoring measurements obtained by performing QoS monitoring of at least two service data flows (SDF flows).

[0006] According to a third aspect of one embodiment of the disclosed invention, a method for subscribing to QoS control measurements is provided. The method is performed by a third network function, wherein the method includes the step of receiving information on an authorized QoS control policy sent by the second network function, wherein the information on the authorized QoS control policy serves to control the QoS of at least two service data flows (SDF flows).

[0007] According to a fourth aspect of one embodiment of the disclosed invention, a method for subscribing to QoS control measurements is provided. The method is performed by a fourth network function, wherein the method includes the step of sending QoS control measurements to a third network function, wherein the QoS control report contains QoS control measurements obtained by performing QoS control on at least two service data flows (SDF flows).

[0008] According to a fifth aspect of one embodiment of the disclosed invention, a system is proposed. The system includes a first network function, a second network function, a third network function and a fourth network function; wherein the first network function is configured to implement the method performed by the first network function in the disclosed invention; the second network function is configured to implement the method performed by the second network function in the disclosed invention; the third network function is configured to implement the method performed by the third network function in the disclosed invention; and the fourth network function is configured to implement the method performed by the fourth network function 184 in the disclosed invention.

[0009] According to a sixth aspect of one embodiment of the disclosed invention, a device for subscribing to QoS control measurements is provided. The device includes: a sending module configured to send first request information to a second network function, wherein the first request information serves to request a subscription to QoS control measurements obtained by performing QoS control on at least two service data flows (SDFs).

[0010] According to a seventh aspect of one embodiment of the disclosed invention, a device for subscribing to QoS control measurements is provided. The device includes: a receiving module configured to receive first request information sent by a first network function, wherein the first request information serves to request a subscription to QoS control measurements obtained by performing QoS control of at least two service data flows (SDF flows).

[0011] According to an eighth aspect of one embodiment of the disclosed invention, a device for subscribing to QoS control measurements is provided. The device includes: a receiving module configured to receive information on an authorized QoS control policy sent by a second network function, wherein the information on the authorized QoS control policy serves to control the QoS of at least two service data flows (SDF flows).

[0012] According to a ninth aspect of one embodiment of the disclosed invention, a device for subscribing to QoS control measurements is provided. The device includes: a sending module configured to send a QoS control report to a third network function, wherein the QoS control report contains QoS control measurements obtained by performing QoS control on at least two service data flows (SDFs).

[0013] According to a tenth aspect of one embodiment of the disclosed invention, a communications device is proposed. The communications device includes: a processor and a memory device for storing instructions therein that can be executed by the processor; wherein the processor is configured to perform the method according to any embodiment of the disclosed invention when it executes these executable instructions.

[0014] According to an eleventh aspect of one embodiment of the disclosed invention, a computer storage medium is provided. The computer storage medium stores an executable computer program, wherein, when the executable program is executed by the processor, the method according to any embodiment of the disclosed invention is implemented.

[0015] According to embodiments of the disclosed invention, first request information is sent to a second network function. The first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. In this case, since the first network function sends the first request information to the second network function for requesting a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows, the first network function can obtain the QoS control measurements sent by the second network function according to the first request information, as a result of which, unlike a situation in which the QoS control measurements cannot be obtained, coordination between SDF flows can be correctly performed based on the QoS control measurements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG. 1A is a schematic diagram of the structure of a wireless communication system according to one exemplary embodiment.

[0017] FIG. 1B is a schematic diagram of a sequence of a method for subscribing to QoS control measurements according to one exemplary embodiment.

[0018] FIG. 2 is a basic flow chart of a method for subscribing to QoS monitoring measurements according to one exemplary embodiment.

[0019] FIG. 3 is a basic flow chart of a method for subscribing to QoS monitoring measurements according to one exemplary embodiment.

[0020] FIG. 4 is a schematic diagram of a sequence of a method for subscribing to QoS monitoring measurements according to one exemplary embodiment.

[0021] FIG. 5 is a schematic diagram of a sequence of a method for subscribing to QoS control measurements according to one exemplary embodiment.

[0022] FIG. 6 is a schematic diagram of a sequence of a method for subscribing to QoS monitoring measurements according to one exemplary embodiment.

[0023] FIG. 7 is a schematic diagram of a sequence of a method for subscribing to QoS monitoring measurements according to one exemplary embodiment.

[0024] FIG. 8 is a schematic diagram of a sequence of a method for subscribing to QoS control measurements according to one exemplary embodiment.

[0025] FIG. 9 is a schematic diagram of a sequence of a method for subscribing to QoS monitoring measurements according to one exemplary embodiment.

[0026] FIG. 10 is a schematic diagram of a sequence of a method for subscribing to QoS monitoring measurements according to one exemplary embodiment.

[0027] FIG. 11 is a schematic diagram of a sequence of a method for subscribing to QoS control measurements according to one exemplary embodiment.

[0028] FIG. 12 is a schematic diagram of a sequence of a method for subscribing to QoS control measurements according to one exemplary embodiment.

[0029] FIG. 13 is a schematic diagram of a sequence of a method for subscribing to QoS control measurements according to one exemplary embodiment.

[0030] FIG. 14 is a schematic diagram of a sequence of a method for subscribing to QoS monitoring measurements according to one exemplary embodiment.

[0031] FIG. 15 is a schematic diagram of a sequence of a method for subscribing to QoS monitoring measurements according to one exemplary embodiment.

[0032] FIG. 16 is a schematic diagram of a sequence of a method for subscribing to QoS monitoring measurements according to one exemplary embodiment.

[0033] FIG. 17 is a schematic diagram of a sequence of a method for subscribing to QoS control measurements according to one exemplary embodiment.

[0034] FIG. 18 is a schematic diagram of a sequence of a method for subscribing to QoS monitoring measurements according to one exemplary embodiment.

[0035] FIG. 19 is a schematic diagram of a system according to one illustrative embodiment.

[0036] FIG. 20 is a schematic diagram of a QoS monitoring measurement subscription device according to one exemplary embodiment.

[0037] FIG. 21 is a schematic diagram of a QoS monitoring measurement subscription device according to one exemplary embodiment.

[0038] FIG. 22 is a schematic diagram of a QoS monitoring measurement subscription device according to one exemplary embodiment.

[0039] FIG. 23 is a schematic diagram of a QoS monitoring measurement subscription device according to one exemplary embodiment.

[0040] FIG. 24 is a schematic diagram of the structure of a terminal according to one of the illustrative embodiments.

[0041] FIG. 25 is a block diagram of a base station according to one of the illustrative embodiments. EMBODIMENT OF THE INVENTION

[0042] This section will describe in detail illustrative embodiments, examples of which are shown in the accompanying drawings. Unless otherwise indicated, the same reference numerals refer to identical or similar elements throughout the various accompanying drawings referred to in the following description. The embodiments set forth in the following description of illustrative embodiments do not reflect all possible embodiments corresponding to the embodiments of the disclosed invention. They are merely examples of devices and methods corresponding to certain aspects of the embodiments of the disclosed invention, as detailed in the appended claims.

[0043] The terms used in the embodiments of the disclosed invention are intended solely to describe particular embodiments and are not intended to limit the embodiments of the disclosed invention. The use of singular and definite articles (a, a, and the) in the embodiments of the disclosed invention and the appended claims also includes plural meanings unless the context clearly dictates otherwise. It should also be understood that the expression "and / or" as used herein means and includes all possible combinations of one or more of the listed objects it relates.

[0044] It should be understood that features such as "first," "second," "third," etc., which can be used as definitions of various parameters in the embodiments of the disclosed invention, do not limit these parameters. They are intended only to distinguish parameters of the same type from each other. For example, without deviating from the scope of the embodiments of the disclosed invention, a "first parameter" may also be referred to as a "second parameter," just as a "second parameter" may be referred to as a "first parameter." Depending on the context, the word "if" in this document may be understood to mean "at the time when," "when," or "if it is determined that."

[0045] For brevity and clarity, dimensional relationships in this document are characterized by the expressions "greater than" or "less than." Those skilled in the art will understand that the expression "greater than" also implies the meaning "not less than," and the expression "less than" also implies the meaning "not greater than."

[0046] FIG. 1A is a schematic diagram of the structure of a wireless communication system according to one embodiment of the disclosed invention. As can be seen in FIG. 1, the wireless communication system is a communication system based on a mobile communication technology, and the wireless communication system may include: a plurality of subscriber equipments 110 and a plurality of base stations 120.

[0047] The subscriber device 110 may be a device that provides the user with voice and / or data communication capabilities. The subscriber device 110 is configured to communicate with at least one core network via a radio access network (RAN). The subscriber device 110 may be a subscriber device of the Internet of Things network, in particular a sensor device or a mobile phone, as well as a computer with a subscriber device of the Internet of Things network, in particular a stationary, portable, pocket, palmtop, built-in computer or mobile device. For example, the subscriber device 110 may be a station (abbreviated as "STA"), a subscriber unit, a subscriber station, a mobile station, a mobile phone, a remote station, an access point, a remote terminal, an access terminal, a subscriber terminal, a user agent, a user device or a subscriber device.Alternatively, subscriber device 110 may be a drone. Alternatively, subscriber device 110 may be a vehicle-mounted device, such as a wireless-enabled in-car computer or a wireless subscriber device connected to an external in-car computer. Alternatively, subscriber device 110 may be a roadside device, such as a street lamp, signal lamp, or other roadside device with wireless capability.

[0048] The base station 120 may be a network-side device in a wireless communication system. The wireless communication system may be a 4th generation (4G) mobile communication system, also referred to as an LTE (Long Term Evolution) system; or the wireless communication system may be a system based on a fifth generation (5G) mobile communication technology, also referred to as a new air interface system or a 5G New Radio (NR) system. Or the wireless communication system may be a next-generation system that follows 5G. The access network in the 5G system may be referred to as a New Generation-Radio Access Network (NG-RAN).

[0049] The base station 120 may be an enhanced base station (also referred to as an eNB) used in the 4G system. Or the base station 120 may be a base station (also referred to as a gNB) of a centralized-distributed architecture in the 5G system. If the base station 120 adopts a centralized-distributed architecture, it typically includes a centralized unit (CU) and at least two distributed units (DUs). The CU implements the protocol stacks of the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control (RLC) layer, and the Media Access Control (MAC) layer. The DU implements the protocol stack of the physical (PHY) layer.The implementation of base station 120 in embodiments of the disclosed invention is not limited to any particular case.

[0050] A wireless connection between base station 120 and subscriber device 110 is established via a wireless radio interface. In various embodiments, the wireless radio interface is a 4G wireless radio interface, or a 5G wireless radio interface. For example, the wireless radio interface is a New Radio standard interface, or the wireless radio interface may be a wireless radio interface based on a next-generation mobile network technology standard that will follow 5G.

[0051] In some embodiments, the subscriber device 110 is configured to establish an end-to-end (E2E) connection, in particular a vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), and vehicle-to-pedestrian (V2P) communication connection in a vehicle-to-everything (V2X) communication system.

[0052] In this case, the “subscriber device” mentioned above can be considered to be the “terminal” in the following embodiments.

[0053] In some embodiments, the wireless communication system may further comprise a network management device 130.

[0054] Each of the plurality of base stations 120 is respectively connected to a network control device 130. The network control device 130 may be a core network device in a wireless communication system. For example, the network control device 130 may be a mobility management entity (MME) in an evolved packet core (EPC). Or the network control device may be other core network devices, in particular, a serving gateway (SGW), a public data network gateway (PGW), a policy and charging rules function (PCRF), or a home subscriber server (HSS). Embodiments of the disclosed invention do not limit the implementation of the network control device 130.

[0055] It should be noted that the core network device (or core network function) may include at least one of the following.

[0056] 1. Access and Mobility Management Function (AMF). The main function of this network function (NF) is to manage user access and mobility.

[0057] 2. Session Management Function (SMF). The primary function of this function is session management, including distributing IP addresses to terminals, session management, cost accounting, user-plane management, etc.

[0058] 3. User Plane Function (UPF). The main function of this function is to implement data forwarding, traffic statistics, and QoS in the user plane.

[0059] 4. Policy Control Function (PCF). The main function of this function is to implement policy management for the user, including QOS management, service access management, etc.

[0060] 5. Unified Data Management (UDM function). The main function of this function is to implement contract data management and user roaming management, etc.

[0061] 6. Authorization Service Function (AUSF). The main function of this SF is to implement the authentication function for the user. To facilitate understanding by those skilled in the art, several embodiments of the disclosed invention are provided in the embodiments, clearly illustrating the technical solution of the embodiments of the disclosed invention. Those skilled in the art will, of course, understand that each of the multiple embodiments of the disclosed invention can be implemented on its own, together with methods according to other embodiments of the disclosed invention, either on its own or in combination with certain methods known in the art. The embodiments of the disclosed invention do not establish limitations in this regard.

[0062] To facilitate understanding of the embodiments of the disclosed invention, corresponding scenarios will be described below.

[0063] Mobile media services, cloud-based augmented reality (AR) / virtual reality (VR) and other extended reality (XR) services, cloud gaming, and remote control of cars or drones using video technology are expected to contribute to the growth of 5G network traffic. XR services imply the presence of multimodal data streams. Multimodal data is input data from the same device or different devices (including sensors) characterizing the same service or application, and this data can be output to one or more terminals of the destination devices. Data streams in multimodal data are often in a certain or even strong relationship, for example, audio and video streams are synchronized, touch and vision are synchronized, etc.Certain characteristics are common to this type of media service data stream and other data streams, as well as to the network transmission requirements for these service data streams. Effective identification and application of these characteristics will facilitate improved transmission and network and service management, as well as ensure guaranteed service quality and enhance user experience.

[0064] The presence of QoS characteristics common to multiple XRM service flows (such as round-trip delay, time delta, SDF flow delay jitter, etc.) requires the network to be able to monitor the QoS of group SDF flows, as well as to unify the subscription and notification of the corresponding QoS characteristics. This results in more accurate and efficient support for the dynamic QoS perception by the AF function and the cooperation of group SDF flows for XRM services. It should be noted that in practice, the state of the QoS parameters of multiple flows, in particular, delay and jitter, of group SDF flows in the network during business processes dynamically and continuously changes under the influence of various network factors.Therefore, the network condition in terms of real-time or quasi-real-time latency and the real-time latency requirements of AF function services will directly affect the QoS authorization for each data flow and even the ability to successfully support the XRM service function in the 5GS system.

[0065] Current solutions do not provide a unified mechanism for QoS control across multiple SDF flows in the 5GS system, including delay difference control for two or more SDF flows in the same direction, round-trip delay control for two SDF flows, and SDF flow jitter control. Consequently, the AF function cannot perceive the actual QoS needs of multiple SDF service flows and cannot correctly update and implement cooperation between multiple flows based on the received control report.

[0066] As can be seen from FIG. 1B, embodiments of the disclosed invention provide a method for subscribing to QoS monitoring measurements. The method includes the following steps.

[0067] In step 11, the first network function sends first request information to the second network function, wherein the first request information serves to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows.

[0068] In step 12, after receiving the first request information, the second network function sends authorized QoS control policy information to the third network function, wherein the QoS control policy information serves to control the QoS of at least two SDF flows.

[0069] In step 13, after receiving the QoS control policy information, the third network function sends the QoS message rule information to the radio access network and / or the fourth network function.

[0070] In step 14, the fourth network function receives the QoS Control Report according to the QoS Message Rule Information and sends the QoS Control Report to the third network function.

[0071] In step 15, after receiving the QoS Control Report, the third network function sends the QoS Control Report to the second network function.

[0072] In step 16, after receiving the QoS Control Report, the second network function sends the QoS Control Report to the first network function.

[0073] In one embodiment, the first network function may be an AF function, the second network function may be a PCF function, the third network function is an SMF function, and the fourth network function is a UPF function.

[0074] As can be seen from FIG. 2, embodiments of the disclosed invention provide a method for subscribing to QoS monitoring measurements. The method is performed by a first network function, and the method includes the following steps.

[0075] In step 21, the first request information is sent to the second network function.

[0076] The first request information is used to request subscription to QoS control measurements obtained by performing QoS control on at least two SDF flows.

[0077] In this case, the “terminal” in the disclosed invention may be, among other things, a mobile phone, a wearable device, a transportable terminal, a roadside unit (RSU), a smart home system terminal, an industrial sensor device and / or a medical device, etc. In some embodiments, the terminal may be a terminal supporting Redcap technology or a terminal according to a predetermined version of the NR standard (for example, a terminal corresponding to Release 17 (R17) of the NR standard).

[0078] The first network device in the disclosed invention may be an AF function. Of course, the first network device may also be another network device capable of implementing the AF function. The second network device in the disclosed invention may be a policy management function (PCF). Of course, the second network device may also be another network device capable of implementing the PCF function. The third network device in the disclosed invention may be a session management function (SMF). Of course, the third network device may also be another network device capable of implementing the SMF function. The fourth network device in the disclosed invention may be a user plane function (UPF). Of course, the fourth network device may also be another network device capable of implementing the UPF function. The above is not limited in this document.

[0079] In one embodiment, during the QoS request procedure, the AF function sends first request information to the second network function. The first request information is used to request a subscription to QoS monitoring measurements obtained by performing QoS monitoring of at least two SDF flows.

[0080] In one embodiment, first request information is sent to a second network function, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. Subscription reporting sent by the second network function is received, wherein the subscription reporting is used to indicate QoS control measurements.

[0081] In one embodiment, a subscription report sent by a second network function is received, wherein the subscription report is used to indicate QoS control measurements, wherein the QoS control measurements include a delay-related QoS parameter.

[0082] In one embodiment, a subscription report sent by a second network function is received, wherein the subscription report serves to indicate QoS monitoring measurements. The QoS monitoring measurements include at least one of: a delay difference for two SDF flows in the same direction, a round-trip delay measurement for two SDF flows, and / or an SDF flow jitter parameter. It should be noted that the SDF flow jitter parameter may be jitter parameters of the same SDF flow at different points in time, which is not limited in this case.

[0083] In one embodiment, first request information is sent to a second network function, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control on at least two SDF flows. The first request information is used to indicate at least one of: XRM service information, common identifier information for identifying a group of XRM service data flows, address information of a terminal, identification information of a terminal, an application identity of an AF function identifying traffic information, a data network name (DNN), single network slice selection assistance information (S-NSSAI), and / or a QoS parameter.

[0084] In one embodiment, first request information is sent to a second network function, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. QoS control information is sent to the second network function, wherein the QoS control information is used to control the QoS of at least two SDF flows.

[0085] In one embodiment, first request information is sent to a second network function, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. QoS control information is sent to the second network function, wherein the QoS control information is used to perform QoS control of at least two SDF flows. The QoS control information indicates at least one of: a correlation identifier, a QoS control key, a control model, a control type, a QoS control level, a delay threshold for an SDF flow, a time difference threshold for SDF flows, a maximum acceptable delay jitter threshold for an SDF flow, a start time or an end time of QoS control, an indication for simultaneous application of QoS control, an indication for simultaneous reporting of QoS control and / or a QoS control reconfiguration period.

[0086] In one embodiment, the QoS control information may be included in the first request information. For example, the first request information is sent to the second network function, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. The first request information includes QoS control information, wherein the QoS control information is used to perform QoS control of at least two SDF flows.

[0087] In embodiments of the disclosed invention, first request information is sent to a second network function, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control on at least two SDF flows. In this case, since the first network function sends the first request information to the second network function for requesting a subscription to QoS control measurements obtained by performing QoS control on at least two SDF flows, the first network function can obtain the QoS control measurements sent by the second network function according to the first request message. Unlike the situation in which the QoS control measurements cannot be obtained, in this case, it is possible to correctly perform coordination between multiple service data flows based on the QoS control measurements.

[0088] It should be noted that those skilled in the art will understand that the methods of the embodiments of the disclosed invention can be performed alone, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0089] As can be seen in FIG. 3, embodiments of the disclosed invention provide a method for subscribing to QoS monitoring measurements. The method is performed by a first network function, and the method includes the following step.

[0090] At step 31, the subscription report sent by the second network function is received.

[0091] Subscription reporting is configured to report QoS monitoring measurements obtained by performing QoS monitoring on at least two SDF flows.

[0092] In one embodiment, first request information is sent to a second network function, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control on at least two SDF flows. Subscription reporting sent by the second network function is received, wherein the subscription reporting is configured to indicate QoS control measurements.

[0093] In one embodiment, a subscription report sent by a second network function is received, wherein the subscription report is configured to indicate QoS control measurements, wherein the QoS control measurements comprise delay-related QoS parameter(s).

[0094] In one embodiment, a subscription report sent by a second network function is received, wherein the subscription report is configured to indicate QoS control measurements, wherein the QoS control measurements include at least one of: a delay difference for two SDF flows in the same direction, a round-trip delay measurement for two SDF flows, and / or an SDF flow jitter parameter. It should be noted that the SDF flow jitter parameter may be jitter parameters of the same SDF flow at different points in time, which is not limited in this case.

[0095] It should be noted that those skilled in the art will understand that the method according to the embodiments of the disclosed invention can be performed by itself, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0096] As can be seen in FIG. 4, embodiments of the disclosed invention provide a method for subscribing to QoS monitoring measurements. The method is performed by a second network function, and the method includes the following steps.

[0097] At step 41, the first request information sent by the first network function is received.

[0098] The first request information is used to request subscription to QoS control measurements obtained by performing QoS control on at least two SDF flows.

[0099] In this case, the “terminal” in the disclosed invention may be, among other things, a mobile phone, a wearable device, a transportable terminal, a roadside unit (RSU), a smart home system terminal, an industrial sensor device and / or a medical device, etc. In some embodiments, the terminal may be a terminal supporting the “Redcap” technology or a terminal according to a predetermined version of the NR standard (for example, a terminal according to R17 NR).

[0100] The first network device in the disclosed invention may be an AF function. Of course, the first network device may also be another network device capable of implementing the AF function. The second network device in the disclosed invention may be a policy management function (PCF). Of course, the second network device may also be another network device capable of implementing the PCF function. The third network device in the disclosed invention may be a session management function (SMF). Of course, the third network device may also be another network device capable of implementing the SMF function. The fourth network device in the disclosed invention may be a user plane function (UPF). Of course, the fourth network device may also be another network device capable of implementing the UPF function. The above is not limited in this document.

[0101] In one embodiment, during a QoS request procedure, the AF functions receive first request information sent by a first network function, wherein the first request information serves to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows.

[0102] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control on at least two SDF flows. Subscription reporting is sent to the first network function, wherein the subscription reporting is configured to indicate QoS control measurements.

[0103] In one embodiment, reporting is sent to a subscription of a first network function, wherein the reporting is configured to indicate QoS control measurements, wherein the QoS control measurements comprise delay-related QoS parameter(s).

[0104] In one embodiment, a subscription report is sent to the first network function, wherein the subscription report is used to indicate QoS monitoring measurements. The QoS monitoring measurements include at least one of: a delay difference for two SDF flows in the same direction, a round-trip delay measurement for two SDF flows, and / or an SDF flow jitter parameter. It should be noted that the SDF flow jitter parameter may be jitter parameters of the same SDF flow at different points in time, which is not limited in this case.

[0105] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. The first request information is used to indicate at least one of: XRM service information, common identifier information for identifying a group of XRM service data flows, terminal address information, terminal identification information, an application credential, an AF function identification describing the information traffic, a DNN, an S-NSSAI, and / or a QoS parameter.

[0106] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. QoS control information sent by the first network function is received, wherein the QoS control information is used to control the QoS of at least two SDF flows.

[0107] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. QoS control information sent by a second network function is received, wherein the QoS control information is used to perform QoS control of at least two SDF flows. The QoS control information indicates at least one of: a correlation identifier, a QoS control key, a control model, a control type, a QoS control level, a delay threshold for an SDF flow, a time difference threshold for SDF flows, a maximum acceptable delay jitter threshold for an SDF flow, a start time or an end time of QoS control, an indication for simultaneous application of QoS control, an indication for simultaneous reporting of QoS control and / or a QoS control reconfiguration period.

[0108] In one embodiment, the QoS control information may be included in the first request information. For example, first request information sent by the first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. The first request information includes QoS control information, wherein the QoS control information is used to perform QoS control of at least two SDF flows.

[0109] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. Based on the first request information, control information used for QoS control of the at least two SDF flows is determined.

[0110] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. Based on the first request information, QoS control information applied to QoS control of the at least two SDF flows is determined. The QoS control information is configured to indicate at least one of: a correlation identifier, a QoS control key, a control model, a control type, a QoS control level, a delay threshold for an SDF flow, a time difference threshold for SDF flows, a maximum acceptable delay jitter threshold for an SDF flow, a start time or an end time of QoS control, an indication for simultaneous application of QoS control, an indication for simultaneous reporting of QoS control, and / or a QoS control reconfiguration period.

[0111] It should be noted that the control information may contain any number of unified QoS control cases related to a subscriber. In each unified QoS control case, a control case must contain a QoS control key. In some cases, a reconfiguration period is specified. It is applicable only to those QoS control cases in which the acceptable QoS delay is periodically reconfigured (e.g., every five minutes, daily, etc.). If the reconfiguration period is not specified, the QoS control case ends when all congested data is consumed or the end time is reached. This QoS control-related information is used by the PCF.

[0112] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. Based on the first request information and local configuration information, control information used to control the QoS of at least two SDF flows is determined.

[0113] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. Based on the first request information and the local configuration information, control information used to control the QoS of at least two SDF flows is determined. The QoS control information is configured to indicate at least one of: a correlation identifier, a QoS control key, a control model, a control type, a QoS control level, a delay threshold for an SDF flow, a time difference threshold for SDF flows, a maximum acceptable delay jitter threshold for an SDF flow, a start time or an end time of QoS control, an indication for simultaneous application of QoS control, an indication for simultaneous reporting of QoS control, and / or a QoS control reconfiguration period.

[0114] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. Information on an authorized QoS control policy for QoS control of at least two SDF flows of a third network function is sent.

[0115] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. By applying a Policy and Charging Control (PCC) rule, information on an authorized QoS control policy is sent to a third network function, wherein the QoS control policy information is used to control the QoS of at least two SDF flows.

[0116] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. Information on an authorized QoS control policy for QoS control of at least two SDF flows of a third network function is sent. QoS control measurements sent by the third network function are received.

[0117] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS monitoring measurements obtained by performing QoS monitoring of at least two SDF flows. An event trigger for QoS reporting is requested.

[0118] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS monitoring measurements obtained by monitoring QoS of at least two SDF flows. An event trigger for a QoS report is requested. Threshold information of a third network function is sent, wherein the threshold information indicates at least one of: a delay threshold, a time difference threshold, and / or a jitter threshold.

[0119] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. It is determined whether it is necessary to perform QoS control of at least two SDF flows, and / or a start time or an end time for performing QoS control of at least two SDF flows is determined.

[0120] It should be noted that those skilled in the art will understand that the method according to the embodiments of the disclosed invention can be implemented by itself or together with some methods in the embodiments of the disclosed invention or with some methods known in the art.

[0121] As can be seen in FIG. 5, embodiments of the disclosed invention provide a method for subscribing to QoS monitoring measurements. The method is performed by a second network function, and the method includes the following step.

[0122] At step 51, the subscription reporting of the first network function is sent.

[0123] Subscription reporting is configured to report QoS monitoring measurements obtained by performing QoS monitoring on at least two SDF flows.

[0124] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. Subscription reporting is sent to the first network function, wherein the subscription reporting is used to indicate the QoS control measurements.

[0125] In one embodiment, a subscription report is sent to the first network function, wherein the subscription report is used to indicate QoS control measurements, wherein the QoS control measurements comprise delay-related QoS parameter(s).

[0126] In one embodiment, subscription reporting is sent to the first network function, wherein the subscription reporting is configured to indicate QoS monitoring measurements. The QoS monitoring measurements include at least one of: the delay difference for two SDF flows in the same direction, the round-trip delay measurements for two SDF flows, and / or the SDF flow jitter parameter. It should be noted that the SDF flow jitter parameter may be the jitter parameters of the same SDF flow at different points in time, which is not limited in this case.

[0127] It should be noted that those skilled in the art will understand that the method according to the embodiments of the disclosed invention can be performed by itself, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0128] As can be seen in FIG. 6, embodiments of the disclosed invention provide a method for subscribing to QoS monitoring measurements. The method is performed by a second network function, and the method includes the following step.

[0129] In step 61, based on the first request information, control information used to control the QoS of at least two SDF flows is determined.

[0130] In one embodiment, a first request message sent by a first network function is received, wherein the first request message is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. Based on the first request information, control information used for QoS control of the at least two SDF flows is determined.

[0131] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. Based on the first request information, control information used for QoS control of at least two SDF flows is determined. The QoS control information is configured to indicate at least one of: a correlation identifier, a QoS control key, a control model, a control type, a QoS control level, a delay threshold for an SDF flow, a time difference threshold for SDF flows, a maximum acceptable delay jitter threshold for an SDF flow, a start time or an end time of QoS control, an indication for simultaneous application of QoS control, an indication for simultaneous reporting of QoS control, and / or a QoS control reconfiguration period.

[0132] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. Based on the first request information and local configuration information, control information used to control the QoS of the at least two SDF flows is determined.

[0133] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. Based on the first request information and the local configuration information, control information used to control the QoS of at least two SDF flows is determined. The QoS control information is configured to indicate at least one of: a correlation identifier, a QoS control key, a control model, a control type, a QoS control level, a delay threshold for an SDF flow, a time difference threshold for SDF flows, a maximum acceptable delay jitter threshold for an SDF flow, a start time or an end time of QoS control, an indication for simultaneous application of QoS control, an indication for simultaneous reporting of QoS control and / or a QoS control reconfiguration period.

[0134] It should be noted that those skilled in the art will understand that the method according to the embodiments of the disclosed invention can be performed by itself, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0135] As can be seen in FIG. 7, embodiments of the disclosed invention provide a method for subscribing to QoS monitoring measurements. The method is performed by a second network function, and the method includes the following step.

[0136] In step 71, information on an authorized QoS control policy applied to control the QoS of at least two SDF flows is sent to a third network function.

[0137] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. Information on an authorized QoS control policy applied to control the QoS of at least two SDF flows is sent to a third network function.

[0138] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. By applying a policy and cost control rule (PCC rule), information on an authorized QoS control policy of a third network function is sent, wherein the QoS control policy information is used to control the QoS of at least two SDF flows.

[0139] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. Information on an authorized QoS control policy applied to control the QoS of at least two SDF flows is sent to a third network function. QoS control measurements sent by the third network function are received.

[0140] It should be noted that those skilled in the art will understand that the method according to the embodiments of the disclosed invention can be performed by itself, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0141] As can be seen in FIG. 8, embodiments of the disclosed invention provide a method for subscribing to QoS monitoring measurements. The method is performed by a second network function, and the method includes the following step.

[0142] At step 81, QoS control measurements sent by the third network function are received.

[0143] In one embodiment, first request information sent by a first network function is received, wherein the first request message is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. By applying a PCC rule, information on an authorized QoS control policy is sent to a third network function, wherein the information on the authorized QoS control policy is used to perform QoS control of at least two SDF flows. QoS control measurements sent by the third network function are received.

[0144] In one embodiment, first request information sent by a first network function is received, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. Information on an authorized QoS control policy applied to control the QoS of at least two SDF flows is sent to a third network function. QoS control measurements sent by the third network function are received.

[0145] It should be noted that those skilled in the art will understand that the method according to the embodiments of the disclosed invention can be performed by itself, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0146] As can be seen in FIG. 9, embodiments of the disclosed invention provide a method for subscribing to QoS monitoring measurements. The method is performed by a third network function, and the method includes the following step.

[0147] At step 91, the authorized QoS control policy information sent by the second network function is received.

[0148] QoS control policy information is used to control the QoS of at least two SDF flows.

[0149] In this case, the “terminal” in the disclosed invention may be, among other things, a mobile phone, a wearable device, a transportable terminal, a roadside unit (RSU), a smart home system terminal, an industrial sensor device and / or a medical device, etc. In some embodiments, the terminal may be a terminal supporting Redcap technology or a terminal according to a predetermined version of the NR standard (for example, a terminal according to R17 NR).

[0150] The first network device in the disclosed invention may be an AF function. Of course, the first network device may also be another network device capable of implementing the AF function. The second network device in the disclosed invention may be a PCF function. Of course, the second network device may also be another network device capable of implementing the PCF function. The third network device in the disclosed invention may be an SMF function. Of course, the third network device may also be another network device capable of implementing the SMF function. The fourth network device in the disclosed invention may be a UPF function. Of course, the fourth network device may also be another network device capable of implementing the UPF function. The above is not limited herein.

[0151] In one embodiment, authorized QoS control policy information sent by the second network function is received by applying a PCC rule, wherein the QoS control policy information serves to control the QoS of at least two SDF flows.

[0152] In one embodiment, authorized QoS control policy information sent by a second network function is received, wherein the QoS control policy information is used to control the QoS of at least two SDF flows. Based on the QoS control policy information, configuration information for performing QoS control measurement of at least two SDF flows transmitted by a fourth network function is determined, wherein the configuration information comprises a QoS reporting rule (QRR).

[0153] In one embodiment, authorized QoS control policy information sent by a second network function is received, wherein the QoS control policy information is used to control the QoS of at least two SDF flows. The radio access network (RAN) and / or the fourth network function are triggered to perform monitoring and measuring of the QoS parameter with respect to the QoS of the at least two SDF flows.

[0154] ​​In one embodiment, information on an authorized QoS control policy sent by a second network function is received, wherein the information on the QoS control policy serves to control the QoS of at least two SDF flows, and information on a QoS message rule of the radio access network and / or the fourth network function is sent.

[0155] In one embodiment, information on an authorized QoS control policy sent by a second network function is received, wherein the information on the QoS control policy is used for QoS control of at least two SDF flows. The RAN and / or the fourth network function are triggered to perform control and measurement of a QoS parameter with respect to the QoS of at least two SDF flows. A QoS control report sent by the RAN and / or the fourth network function is received, wherein the QoS control report contains QoS control measurements obtained by performing QoS control of at least two SDF flows.

[0156] In one embodiment, authorized QoS control policy information sent by a second network function is received, wherein the QoS control policy information is used for QoS control of at least two SDF flows. The RAN and / or the fourth network function are triggered to perform control and measurement of a QoS parameter with respect to the QoS of at least two SDF flows. A QoS control report sent by the RAN and / or the fourth network function is received, wherein the QoS control report contains QoS control measurements obtained by performing QoS control of at least two SDF flows. The QoS control measurements include delay-related QoS parameter(s).

[0157] In one embodiment, information on an authorized QoS control policy sent by a second network function is received, wherein the QoS control policy information is used for QoS control of at least two SDF flows. The RAN and / or the fourth network function are triggered to perform control and measurement of a QoS parameter with respect to the QoS of at least two SDF flows. A QoS control report sent by the RAN and / or the fourth network function is received, wherein the QoS control report contains QoS control measurements obtained by performing QoS control of at least two SDF flows. The QoS control measurements include at least one of: a delay difference for two SDF flows in the same direction, round-trip delay measurements for two SDF flows, and / or a jitter parameter of an SDF flow.

[0158] In one embodiment, information on an authorized QoS control policy sent by a second network function is received, wherein the QoS control policy information is used for QoS control of at least two SDF flows. The RAN and / or the fourth network function are triggered to perform control and measurement of a QoS parameter with respect to the QoS of at least two SDF flows. A QoS control report sent by the RAN and / or the fourth network function is received, wherein the QoS control report contains QoS control measurements obtained by performing QoS control of at least two SDF flows. The QoS control measurements are sent to the second network function.

[0159] In one embodiment, a QoS control report is requested based on a QoS control key and a QoS trigger. A QoS control report sent by the RAN and / or the fourth network function is received, wherein the QoS control report contains QoS control measurements obtained by performing QoS control on at least two SDF flows.

[0160] In one embodiment, a QoS control report is requested based on a QoS control key and a QoS trigger. A QoS message rule for the QoS control key within the active PCC rule(s) is generated accordingly to receive the QoS control report sent by the RAN and / or the fourth network function, wherein the QoS control report contains QoS control measurements obtained by performing QoS control on at least two SDF flows. It should be noted that the QoS control key can be obtained by mapping a common ID or an XRM service ID, mainly used to link data flows for performing QoS control.

[0161] In one embodiment, information on an authorized QoS control policy sent by a second network function is received, wherein the QoS control policy information is used for QoS control of at least two SDF flows. Information on a trigger event of a fourth network function is sent, wherein the trigger event information is configured to indicate the time of sending a QoS control report by the fourth network function. A QoS control report sent by the RAN and / or the fourth network function is received, wherein the QoS control report contains QoS control measurements obtained by performing QoS control of at least two SDF flows.

[0162] It should be noted that those skilled in the art will understand that the method according to the embodiments of the disclosed invention can be performed by itself, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0163] As can be seen in FIG. 10, embodiments of the disclosed invention provide a method for subscribing to QoS monitoring measurements. The method is performed by a third network function, and the method includes the following step.

[0164] In step 101, based on the QoS control policy information, configuration information for performing QoS control measurement of at least two SDF flows sent by the fourth network function is determined, wherein the configuration information contains a QoS message rule (QRR rule).

[0165] In one embodiment, authorized QoS control policy information sent by a second network function is received, wherein the QoS control policy information is used to control the QoS of at least two SDF flows. Configuration information for performing QoS control measurement of at least two SDF flows, transmitted by a fourth network function, is determined based on the QoS control policy information, wherein the configuration information comprises a QRR rule.

[0166] It should be noted that those skilled in the art will understand that the method according to the embodiments of the disclosed invention can be performed by itself, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0167] As can be seen in FIG. 11, embodiments of the disclosed invention provide a method for subscribing to QoS monitoring measurements. The method is performed by a third network function, and the method includes the following step.

[0168] At step 111, the RAN and / or the fourth network function are started to monitor and measure the QoS parameter with respect to the QoS of at least two SDF flows.

[0169] In one embodiment, information on an authorized QoS control policy sent by a second network function is received, wherein the information on the QoS control policy is used for QoS control of at least two SDF flows. The RAN and / or the fourth network function are triggered to perform control and measurement of a QoS parameter with respect to the QoS of at least two SDF flows. A QoS control report sent by the RAN and / or the fourth network function is received, wherein the QoS control report contains QoS control measurements obtained by performing QoS control of at least two SDF flows.

[0170] In one embodiment, authorized QoS control policy information sent by a second network function is received, wherein the QoS control policy information is used for QoS control of at least two SDF flows. The RAN and / or the fourth network function are triggered to perform control and measurement of a QoS parameter with respect to the QoS of at least two SDF flows. A QoS control report sent by the RAN and / or the fourth network function is received, wherein the QoS control report contains QoS control measurements obtained by performing QoS control of at least two SDF flows. The QoS control measurements include delay-related QoS parameter(s).

[0171] In one embodiment, information on an authorized QoS control policy sent by a second network function is received, wherein the QoS control policy information is used for QoS control of at least two SDF flows. The RAN and / or the fourth network function are triggered to perform control and measurement of a QoS parameter with respect to the QoS of at least two SDF flows. A QoS control report sent by the RAN and / or the fourth network function is received, wherein the QoS control report contains QoS control measurements obtained by performing QoS control of at least two SDF flows. The QoS control measurements include at least one of: a delay difference for two SDF flows in the same direction, round-trip delay measurements for two SDF flows, and / or a jitter parameter of an SDF flow.

[0172] In one embodiment, authorized QoS control policy information sent by a second network function is received, wherein the QoS control policy information is used for QoS control of at least two SDF flows. The RAN and / or the fourth network function are triggered to perform control and measurement of a QoS parameter with respect to the QoS of at least two SDF flows. A QoS control report sent by the RAN and / or the fourth network function is received, wherein the QoS control report contains QoS control measurements obtained by performing QoS control of at least two SDF flows. The QoS control measurements are sent to the second network function.

[0173] It should be noted that those skilled in the art will understand that the method according to the embodiments of the disclosed invention can be performed by itself, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0174] As can be seen in FIG. 12, embodiments of the disclosed invention provide a method for subscribing to QoS monitoring measurements. The method is performed by a third network function, and the method includes the following step.

[0175] At step 121, a QoS control report sent by the RAN and / or the fourth network function is received.

[0176] The QoS Monitoring Report contains QoS monitoring measurements obtained by performing QoS monitoring on at least two SDF flows.

[0177] In one embodiment, authorized QoS control policy information sent by a second network function is received, wherein the QoS control policy information is used for QoS control of at least two SDF flows. QoS reporting rule information of a radio access network and / or a fourth network function is sent. A QoS control report sent by the RAN and / or the fourth network function is received, wherein the QoS control report contains QoS control measurements obtained by performing QoS control of at least two SDF flows.

[0178] In one embodiment, authorized QoS control policy information sent by a second network function is received, wherein the QoS control policy information is used for QoS control of at least two SDF flows. Information on a QoS reporting rule of a radio access network and / or a fourth network function is sent. A QoS control report sent by the RAN and / or the fourth network function is received, wherein the QoS control report contains QoS control measurements obtained by performing QoS control of at least two SDF flows. The QoS control measurements include delay-related QoS parameter(s).

[0179] In one embodiment, authorized QoS control policy information sent by a second network function is received, wherein the QoS control policy information is used for QoS control of at least two SDF flows. Information on a QoS reporting rule of the radio access network and / or a fourth network function is sent. A QoS control report sent by the RAN and / or the fourth network function is received, wherein the QoS control report contains QoS control measurements obtained by performing QoS control of at least two SDF flows. The QoS control measurements include at least one of: a delay difference for two SDF flows in the same direction, round-trip delay measurements for two SDF flows, and / or a jitter parameter of an SDF flow.

[0180] In one embodiment, authorized QoS control policy information sent by a second network function is received, wherein the QoS control policy information is used for QoS control of at least two SDF flows. Information on a QoS reporting rule of a radio access network and / or a fourth network function is sent. A QoS control report sent by the RAN and / or the fourth network function is received, wherein the QoS control report contains QoS control measurements obtained by performing QoS control of at least two SDF flows. The QoS control measurements are sent for the second network function.

[0181] It should be noted that those skilled in the art will understand that the method according to the embodiments of the disclosed invention can be performed by itself, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0182] As can be seen in FIG. 13, embodiments of the disclosed invention provide a method for subscribing to QoS monitoring measurements. The method is performed by a third network function, and the method includes the following step.

[0183] At step 131, QoS control measurements are sent to the second network function.

[0184] In one embodiment, information on an authorized QoS control policy sent by a second network function is received, wherein the QoS control policy information is used for QoS control of at least two SDF flows. The RAN and / or the fourth network function are triggered to perform control and measurement of a QoS parameter with respect to the QoS of at least two SDF flows. A QoS control report sent by the RAN and / or the fourth network function is received, wherein the QoS control report contains QoS control measurements obtained by performing QoS control of at least two SDF flows. The QoS control measurements are sent to the second network function.

[0185] In one embodiment, authorized QoS control policy information sent by a second network function is received, wherein the QoS control policy information is used for QoS control of at least two SDF flows. Information on a QoS reporting rule of a radio access network and / or a fourth network function is sent. A QoS control report sent by the RAN and / or the fourth network function is received, wherein the QoS control report contains QoS control measurements obtained by performing QoS control of at least two SDF flows. The QoS control measurements are sent for the second network function.

[0186] It should be noted that those skilled in the art will understand that the method in the embodiments of the disclosed invention can be performed by itself, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0187] As can be seen in FIG. 14, embodiments of the disclosed invention provide a method for subscribing to QoS monitoring measurements. The method is performed by a third network function, and the method includes the following step.

[0188] At step 141, a QoS control report is requested based on the QoS control key and the QoS trigger.

[0189] In one embodiment, a QoS control report is requested based on a QoS control key and a QoS trigger. A QoS control report sent by the RAN and / or the fourth network function is received, wherein the QoS control report contains QoS control measurements obtained by performing QoS control on at least two SDF flows.

[0190] In one embodiment, a QoS control report is requested based on a QoS control key and a QoS trigger. A QoS message rule for the QoS control key within the active PCC rule(s) is generated accordingly to receive the QoS control report sent by the RAN and / or the fourth network function, wherein the QoS control report contains QoS control measurements obtained by performing QoS control on at least two SDF flows. It should be noted that the QoS control key can be obtained by mapping a common ID or an XRM service ID, mainly used to link data flows for performing QoS control.

[0191] It should be noted that those skilled in the art will understand that the method according to the embodiments of the disclosed invention can be performed by itself, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0192] As can be seen in FIG. 15, embodiments of the disclosed invention provide a method for subscribing to QoS monitoring measurements. The method is performed by a fourth network function, and the method includes the following step.

[0193] In step 151, a QoS control report is sent to the third network function.

[0194] The QoS Monitoring Report contains QoS monitoring measurements obtained by performing QoS monitoring on at least two SDF flows.

[0195] In this case, the “terminal” in the disclosed invention may be, among other things, a mobile phone, a wearable device, a transportable terminal, an RSU, a smart home system terminal, an industrial sensor device and / or a medical device, etc. In some embodiments, the terminal may be a terminal supporting the Redcap technology or a terminal according to a predetermined version of the NR standard (for example, a terminal according to R17 NR).

[0196] The first network device in the disclosed invention may be an AF function. Of course, the first network device may also be another network device capable of implementing the AF function. The second network device in the disclosed invention may be a PCF function. Of course, the second network device may also be another network device capable of implementing the PCF function. The third network device in the disclosed invention may be an SMF function. Of course, the third network device may also be another network device capable of implementing the SMF function. The fourth network device in the disclosed invention may be a UPF function. Of course, the fourth network device may also be another network device capable of implementing the UPF function. In this case, there are no limitations.

[0197] In one embodiment, a QoS control report is sent to a third network function, wherein the QoS control report comprises QoS control measurements obtained by performing QoS control on at least two SDF flows. The QoS control measurements include delay-related QoS parameter(s).

[0198] In one embodiment, a QoS monitoring report is sent to a third network function, wherein the QoS monitoring report comprises QoS monitoring measurements obtained by performing QoS monitoring of at least two SDF flows. The QoS monitoring measurements include at least one of: a delay difference for two SDF flows in the same direction, a round-trip delay measurement for two SDF flows, and / or an SDF flow jitter parameter.

[0199] In one embodiment, a QoS control report is received and sent to a third network function, wherein the QoS control report comprises QoS control measurements obtained by performing QoS control on at least two SDF flows.

[0200] In one embodiment, a QoS control report is sent to a third network function based on a QoS control key and a QoS report trigger, wherein the QoS control report comprises QoS control measurements obtained by performing QoS control on at least two SDF flows.

[0201] In one embodiment, a QoS monitoring report is sent to a third network function according to a QoS reporting rule (QRR rule), wherein the QoS monitoring report contains QoS monitoring measurements obtained by performing QoS monitoring of at least two SDF flows. For example, the QRR rule specifies a rule for determining delay information, time difference information, and / or jitter information.

[0202] In one embodiment, a QoS control report is sent to a third network function according to the trigger event information; wherein the QoS control report comprises QoS control measurements obtained by performing QoS control on at least two SDF flows.

[0203] In one embodiment, trigger event information sent by a third network function is received, wherein the trigger event information is configured to indicate the time of sending a QoS monitoring report by the fourth network function. The QoS monitoring report is sent to the third network function according to the trigger event information.

[0204] It should be noted that those skilled in the art will understand that the method according to the embodiments of the disclosed invention can be performed by itself, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0205] As can be seen in FIG. 16, embodiments of the disclosed invention provide a method for subscribing to QoS monitoring measurements. The method is performed by a fourth network function, and the method includes the following step.

[0206] At step 161, a QoS control report is obtained.

[0207] In one embodiment, a QoS control report is received and sent to a third network function, wherein the QoS control report comprises QoS control measurements obtained by performing QoS control on at least two SDF flows.

[0208] It should be noted that those skilled in the art will understand that the method according to the embodiments of the disclosed invention can be performed by itself, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0209] As can be seen from FIG. 17, embodiments of the disclosed invention provide a method for subscribing to QoS monitoring measurements. The method is performed by a fourth network function, and the method includes the following step.

[0210] In step 171, a QoS control report is sent to the third network function based on the QoS control key and the QoS report trigger, and / or a QoS control report is sent to the third network function according to a QoS message rule (QRR rule), and / or a QoS control report is sent to the third network function according to the trigger event information.

[0211] In one embodiment, a QoS control report is sent to a third network function based on a QoS control key and a QoS report trigger; wherein the QoS control report comprises QoS control measurements obtained by performing QoS control on at least two SDF flows.

[0212] In one embodiment, a QoS monitoring report is sent to a third network function according to a QRR rule, wherein the QoS monitoring report contains QoS monitoring measurements obtained by performing QoS monitoring of at least two SDF flows. For example, the QRR rule specifies a rule for determining delay information, time difference information, and / or jitter information.

[0213] In one embodiment, a QoS control report is sent to a third network function according to the trigger event information, wherein the QoS control report comprises QoS control measurements obtained by performing QoS control on at least two SDF flows.

[0214] In one embodiment, trigger event information sent by a third network function is received, wherein the trigger event information is configured to indicate the time of sending a QoS control report by a fourth network function. The QoS control report is sent to the third network function according to the trigger event information.

[0215] It should be noted that those skilled in the art will understand that the method according to the embodiments of the disclosed invention can be performed by itself, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0216] As can be seen in FIG. 18, in the embodiments of the disclosed invention, a system is proposed. The system includes a first network function 181, a second network function 182, a third network function 183 and a fourth network function 184. The first network function 181 is configured to perform the methods implemented by the first network function 181 in the disclosed invention. The second network function 182 is configured to perform the methods implemented by the second network function 182 in the disclosed invention. The third network function 183 is configured to perform the methods implemented by the third network function 183 in the disclosed invention. The fourth network function 184 is configured to perform the methods implemented by the fourth network function 184 in the disclosed invention.

[0217] To create a clearer idea of ​​the embodiments of the disclosed invention, its technical solution will be described below using one of the embodiment examples.

[0218] As can be seen from FIG. 19, embodiments of the disclosed invention provide a method for subscribing to QoS monitoring measurements. The method includes the following steps.

[0219] In step 1901, the AF function sends a session resource request to the AF function, for example, via the Nnef_AFsessionWithQoS_Create request, to create an AF function request (i.e., the "first request information"). Namely, the first request information is sent to the second network function, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. Accordingly, a subscription report sent by the second network function is received, wherein the subscription report is used to indicate the QoS control measurements.

[0220] In one example, XRM service information, common ID information for identifying a group of XRM service data flows, an AU address or AU identifier, an AF function identification application ID, flow description(s), DNN, S-NSSAI, QoS parameter, or other relevant information are transmitted. In this case, the common ID may serve to identify all flows in the XRM service group.

[0221] It should be noted that in one embodiment, the AF function also sends QoS control information to the PCF function. For example, the QoS control information may be included in the first request information. For example, the first request information is sent to the second network function, wherein the first request information is used to request a subscription to QoS control measurements obtained by performing QoS control of at least two SDF flows. The first request information includes QoS control information, wherein the QoS control information is used to perform QoS control of at least two SDF flows.

[0222] In one embodiment, the QoS control information is configured to indicate at least one of: a correlation identifier, a QoS control key, a control model, a control type, a QoS control level, a delay threshold of SDF flows, a time difference threshold for SDF flows, a maximum acceptable delay jitter threshold for SDF flow, a start time or an end time of QoS control, an indication for concurrent application of QoS control, an indication for concurrent reporting of QoS control, and / or a QoS control reconfiguration period.

[0223] In step 1902, the Network Exposure Function (NEF) authorizes the AF request. If it is an untrusted AF, the AF request is sent to the PCF through the NEF. For example, the NEF performs the corresponding mappings, including the mapping of the XRM service identifier (AF-Service-Identifier) ​​to the DNN and S-NSSAI, the mapping of the external application identifier to the application identifier in the Core Network (CN); the mapping of the external UT identifier to the UT identifier in the CN (specifically, the subscriber permanent identifier (SUPI)) according to the subscription information of the UDM, and the mapping of the external XRM service group identifier to the internal XRM service group identifier according to the subscription information of the UDM.

[0224] In step 1903, the NEF initiates the Npcf_PolicyAuthorization_Create request, sends the AF request to the PCF, and transmits the required QoS information for the PCF to perform policy selection. The message contains information about the joint QoS subscription.

[0225] In step 1904, the PCF determines the control strategy. The PCF may determine that updated or new policy information should be sent to the SMF.

[0226] At step 1905, the PCF function sends a response to the Npcf_Policy Authorization_Create to the NEF function.

[0227] In step 1906, the NEF function sends a response message to the Nnef_AFsessionWithQoS_Create AF function.

[0228] In step 1907, the PCF initiates a request to change the Session Management (SM) policy association (PCC rule (QoS control policy)) to the SMF. According to the QoS control policy regarding the measurement from the PCF, the SMF generates a QoS control configuration for the UPF (and, if necessary, for the RAN), as described in step 1904.

[0229] In step 1908, the SMF sends a response to the SM policy association change request to the PCF.

[0230] In step 1909, the SMF initiates a request to change the N4 session (QoS control configuration, as specified in Table 1 below) to the UPF.Table 1: Attribute Description Note Rule ID A unique identifier to identify this information Used by UPF function in QoS control reporting Reporting triggers One or more of the events may be triggered to generate and report a QoS report. Eligible events include: - Application instance ID / non-AII traffic detection started / stopped and SDF inference filtering reported; Periodic measurement threshold reached; Round-trip (RT) latency / time delta / jitter measurement threshold reached; Urgent report requested; Marked upstream / downstream traffic measured; End-marked packet received. Threshold for periodic measurement Indicates the time at which to send a periodic report for this QRR rule (e.g. time of day or periodic time). Enables the generation of periodic QoS monitoring reports for RT-latency / time delta / jitter. It can also be used to implement "Time Monitoring" in the QoS monitoring tool. Threshold for measuring RT delay The value in the form of a delay threshold in the uplink and / or downlink at which the measurement report should be generated. Threshold for measuring time difference The value in the form of a threshold of time difference between traffics at which the measurement report should be generated. Threshold for jitter measurement The value in the form of a jitter time threshold between traffics at which a measurement report should be generated One or more correlating QRR rule IDs Points to one or more other QRR rule IDs. Allows you to generate a consolidated QoS-related report for this and other QRR rules by triggering reporting on them. The type of QoS to be measured Specifies the type of QoS information to be measured, i.e. RT-Delay, Time Delta, Jitter.

[0231] In step 1910, after receiving the QoS control configuration, the UPF enables measurement and reporting. The UPF(s) respond(s) to the SMF.

[0232] In step 1911, for the change requested by the SMF, the SMF causes the Namf_Communication_N1N2 message ([N2 SM information] (PDU session ID, QoS flow identifier(s) (QFI), QoS profile(s), QoS control configuration), N1 SM container) to be transmitted).

[0233] In step 1912, the AMF may send N2 ((N2 SM information received from the SMF), NAS message (PDU session ID, N1 SM container (PDU session change command)) to the (R)AN. After receiving the QoS control configuration, the RAN enables event measurement and reporting (for example, the RAN detects uplink (UL) delay and downlink (DL) delay, and the sum of the UL PDB and DL PDB is the RT delay).

[0234] In step 1913, resource configuration is performed.

[0235] In step 1914, the (R)AN may acknowledge the N2 PDU session request by sending an N2 PDU session acknowledge message to the AMF.

[0236] In step 1915, the AMF forwards the N2 SM information received from the AN to the SMF via the Nsmf_PDUSession_UpdateSMContext service operation.

[0237] At step 1916, the SMF returns a response to Nsmf_PDUSession_UpdateSMContext.

[0238] The SMF can update the N4 session of the UPF(s) involved in the PDU session change by sending an N4 UPF Session Change Request message.

[0239] As can be seen in FIG. 20, embodiments of the disclosed invention provide a device for subscribing to QoS control measurements. The device includes a sending module 201.

[0240] The sending module 201 is configured to send the first request information to the second network function.

[0241] The first request information is used to request subscription to QoS control measurements obtained by performing QoS control on at least two SDF flows.

[0242] It should be noted that those skilled in the art will understand that the method in the embodiments of the disclosed invention can be performed by itself, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0243] As can be seen in FIG. 21, embodiments of the disclosed invention provide a device for subscribing to QoS monitoring measurements. The device includes a receiving module 211.

[0244] The receiving module 211 is configured to receive the first request information sent by the first network function.

[0245] The first request information is used to request subscription to QoS control measurements obtained by performing QoS control on at least two SDF flows.

[0246] It should be noted that those skilled in the art will understand that the method according to the embodiments of the disclosed invention can be performed by itself, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0247] As can be seen in FIG. 22, in embodiments of the disclosed invention, a device for subscribing to QoS control measurements is proposed. The device includes a receiving module 21.

[0248] The receiving module 221 is configured to receive information on an authorized QoS control policy sent by the second network function.

[0249] QoS control policy information is used to control the QoS of at least two SDF flows.

[0250] It should be noted that those skilled in the art will understand that the method in the embodiments of the disclosed invention can be performed by itself, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0251] As can be seen in FIG. 23, in embodiments of the disclosed invention, a device for subscribing to QoS control measurements is proposed. The device includes a sending module 231.

[0252] The sending module 231 is configured to send a QoS control report to the third network function.

[0253] The QoS Monitoring Report contains QoS monitoring measurements obtained by performing QoS monitoring on at least two SDF flows.

[0254] It should be noted that those skilled in the art will understand that the method according to the embodiments of the disclosed invention can be performed by itself, or in combination with some methods in the embodiments of the disclosed invention, or with some methods known in the art.

[0255] The disclosed invention proposes a communications device. The communications device includes a processor and a memory device for storing instructions executable by the processor.

[0256] The processor is configured to implement the method according to any embodiment of the disclosed invention when it executes these executable instructions.

[0257] The processor may contain various types of storage media, which are permanent storage media for computers that can continue to store information stored therein after the power supply to the communication device is cut off.

[0258] The processor may be connected to a storage device by a bus or something similar with the ability to read an executable program stored in the storage device.

[0259] Furthermore, embodiments of the disclosed invention provide a computer storage medium. The computer storage medium contains an executable computer program stored therein. When this executable program is executed by the processor, the method according to any embodiment of the disclosed invention is executed.

[0260] Details of how exactly each of the modules of the devices according to the embodiments disclosed above performs operations are given in the embodiments of the method and will not be given in detail again.

[0261] As can be seen from FIG. 24, embodiments of the disclosed invention provide a terminal structure.

[0262] As can be seen in FIG. 24, in embodiments of the disclosed invention, a terminal 800 is provided, which may be a mobile phone, a computer, a digital broadcasting terminal, a device for sending and receiving messages, a game console, a tablet device, a medical device, a device for physical education, a personal digital assistant, etc.

[0263] As can be seen in FIG. 24, the terminal 800 may include at least one of the following components: a processing component 802, a memory device 804, a power element 806, a multimedia component 808, an audio component 810, an input / output interface 812, a sensor component 814, and a communication component 816.

[0264] The processing component 802 typically controls the operations of the terminal 800 as a whole, in particular, operations related to visual display, telephone calls, data transmission, camera operations, and recording operations. The processing component 802 may include at least one processor 820 for executing instructions for performing all or some of the steps of the methods disclosed above. In addition, the processing component 802 may include at least one module that facilitates the interaction of the processing component 802 with other components. For example, the processing component 802 may include a multimedia module for facilitating the interaction between the multimedia component 808 and the processing component 802.

[0265] The memory device 804 is configured to store various types of data to ensure the operation of the terminal 800. Examples of such data include instructions for any applications or methods performed in the terminal 800, contact information, phone book data, messages, images, videos, etc. The memory device 804 can be implemented on the basis of a volatile or non-volatile memory device of any type or a combination thereof, for example, on the basis of a static random access memory (SRAM), an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a programmable read-only memory (PROM),Programmable Read-Only Memory (ROM), read-only memory (ROM), magnetic storage device (MSD), flash memory, magnetic or optical disk.

[0266] The power element 806 provides power to various components of the terminal 800. The power element 806 may include a power management system, one or more power sources, and any other components related to power generation, power management, and power distribution for the terminal 800.

[0267] The multimedia component 808 includes a screen that forms an output interface between the terminal 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen capable of receiving input signals from the user. The touch panel includes one or more touch sensors configured to perceive touches, movements, and gestures on the touch panel. The touch sensor can perceive not only the boundary of the touch or movement area, but also the period of time and pressure associated with this touch or movement. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera.The front and / or rear camera can receive external multimedia data when the terminal 800 is in an operating mode, such as photo or video recording mode. Both the front and rear cameras may be fixed-lens systems or may have focusing and optical zoom capabilities.

[0268] The audio component 810 is configured to receive and / or output audio signals. For example, the audio component 810 includes a microphone (MIC) configured to receive external audio signals when the terminal 800 is in an operating mode, such as in a talk mode, a recording mode, and a voice recognition mode. The received audio signal can then be stored in the memory device 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 further comprises a speaker for outputting audio signals.

[0269] The input / output interface 812 forms a means for coupling between the processing component 802 and peripheral interface modules, which may be a keyboard, a pressure-sensitive wheel, a button, etc. The buttons may include, among others, a reset button, a volume control button, a start button, and a lock button.

[0270] The touch component 814 includes at least one sensor for evaluating various aspects of the state of the terminal 800. For example, the touch component 814 can detect the on / off state of the terminal 800, the relative location of the components, in particular the display and keyboard of the terminal 800, while the touch component 814 can also detect a change in the position of the terminal 800 or a component of the terminal 800, the presence or absence of contact of the user with the terminal 800, the orientation or acceleration / deceleration of the terminal 800 and a change in the temperature of the terminal 800. The touch component 814 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact.The sensor component 814 may also include a light-sensitive sensor, such as a complementary metal-oxide-semiconductor (CMOS) image sensor or a charge-coupled device (CCD) for use in imaging applications. In some embodiments, the sensor component 814 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0271] The communication component 816 is configured to provide wired or wireless communication between the terminal 800 and other devices. The terminal 800 can access a wireless network using any communication standard, in particular, Wireless Fidelity (Wi-Fi), 2G, 3G, or a combination thereof. In one of the exemplary embodiments, the communication component 816 receives broadcast signals or broadcast-related information from an external transmission control system over a broadcast channel. In one of the exemplary embodiments, the communication component 816 further comprises a near field communication module (NFC module) for communication over short distances. For example, an NFC module can be implemented based on radio frequency identification (RFID), infrared data transfer (IrDA), ultra-wideband (UWB) technologies.Ultra Wide Band), Bluetooth (BT) technology and other technologies.

[0272] In one exemplary embodiment, terminal 800 may be implemented using one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements to perform the methods disclosed above.

[0273] In one of the exemplary embodiments, a non-transitory computer-readable storage medium is also provided, containing instructions, in particular a memory device 804 containing instructions, wherein these instructions can be executed by the processor 820 of the terminal 800 to perform the above-described methods. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a compact disc read-only memory (CD-ROM), a magnetic tape, a floppy disk, an optical storage device, etc.

[0274] As can be seen in FIG. 25, in the embodiments of the disclosed invention, the structure of the base station is illustrated. For example, the base station 900 can be a device on the network side. As can be seen in FIG. 25, the base station 900 comprises a processing component 922, in turn comprising at least one processor, and a memory resource represented by a memory device 932 for storing instructions that can be executed by the processing component 922, in particular an application program. The application program stored in the memory device 932 can include one or more modules, each of which corresponds to a particular set of instructions. In addition, the processing component 922 is configured to execute instructions for performing any of the above-disclosed methods performed by the base station.

[0275] The base station 900 may also include a power element 926 configured to control the power of the base station 900, a wired or wireless network interface 950 configured to connect the base station 900 to a network, and an input / output interface 958. The base station 900 may run an operating system introduced into the storage device 932, in particular Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™ or any similar one.

[0276] After reading the description and in the course of practicing the disclosed invention, other embodiments of the disclosed invention will occur to those skilled in the art. It is understood that the scope of the disclosed invention includes any variations, applications, or modifications of the disclosed invention that correspond to the general principles of the disclosed invention and incorporate generally known knowledge or technical means conventionally used in the art, but not disclosed herein. It should be understood that the description and examples are illustrative only, and the true scope and essence of the disclosed invention are defined in the following claims.

[0277] It should be understood that the disclosed invention is not limited to the precise design disclosed above and illustrated in the drawings, and that various modifications and changes may be made without departing from its scope. The scope of the disclosed invention is limited only by the appended claims.

Claims

1. A method for subscribing to quality of service (QoS) measurements performed by a first network function, the method comprising the step of: sending the first request information to the second network function during the QoS request procedure of the application function (AF function), wherein the first request information serves to request a subscription to QoS control measurements obtained by performing QoS control on at least two service data flows (SDF flows).

2. The method according to paragraph 1, further comprising the step of: receive subscription reporting sent by the second network function, Subscription reporting is used to indicate QoS monitoring measurements.

3. The method according to claim 1 or 2, wherein the QoS monitoring measurements comprise a delay-related QoS parameter; wherein the QoS control measurements comprise at least one of: delay differences for two SDF flows in the same direction; round-trip delay measurements for two SDF streams; and / or SDF stream jitter parameter.

4. The method according to any one of paragraphs 1-3, wherein the first request information serves to indicate at least one of: information about the extended reality multimedia service (XRM service); common identifier information for identifying a group of XRM service data streams; terminal address information; terminal identification information; application function identification (AF) application credentials; describing traffic information; Data Network Name (DNN); Single Network Slice Selection Auxiliary Information (S-NSSAI); and / or QoS parameter.

5. The method according to any one of paragraphs 1-4, further comprising the step of: send QoS control information to the second network function, wherein the QoS control information serves to control the QoS of at least two SDF flows; wherein the QoS control information serves to indicate at least one of: correlation identifier; QoS control key; control models; type of control; QoS control level; latency threshold for SDF stream; time difference threshold for SDF flows; threshold of maximum allowable delay jitter for SDF stream; start time or end time of QoS control; guidelines for the simultaneous application of QoS control; instructions for concurrent QoS monitoring reporting; and / or QoS control reconfiguration period.

6. A method for subscribing to quality of service (QoS) measurements performed by a second network function, the method comprising the step of: receiving the first request information sent by the first network function during the QoS request procedure of the application function (AF function), wherein the first request information serves to request a subscription to QoS control measurements obtained by performing QoS control on at least two service data flows (SDF flows).

7. The method according to paragraph 6, further comprising the step of: send reporting on the first network function subscription, Subscription reporting is used to indicate QoS monitoring measurements.

8. The method according to claim 6 or 7, wherein the QoS monitoring measurements comprise a delay-related QoS parameter; or wherein the QoS monitoring measurements comprise at least one of: delay differences for two SDF flows in the same direction; round-trip delay measurements for two SDF streams; and / or SDF stream jitter parameter.

9. The method according to any one of paragraphs 6-8, wherein the first request information serves to indicate at least one of: information about the extended reality multimedia service (XRM); common identifier information for identifying a group of XRM service data streams; terminal address information; terminal identification information; application function identification (AF) application credentials; describing traffic information; Data Network Name (DNN); Single Network Slice Selection Auxiliary Information (S-NSSAI); and / or QoS parameter.

10. The method according to any one of paragraphs 6-9, further comprising the step of: receive QoS control information sent by the first network function, wherein the QoS control information serves to control the QoS of at least two SDF flows; or determining QoS control information used to control the QoS of at least two SDF flows based on the first request information; wherein at the stage at which QoS control information is determined, which is used for QoS control of at least two SDF flows, based on the first request information: determining QoS control information used to control the QoS of at least two SDF flows based on the first request information and the local configuration information; wherein the QoS control information serves to indicate at least one of: correlation identifier; QoS control key; control models; type of control; QoS control level; SDF stream delay threshold; time difference threshold for SDF flows; threshold of maximum permissible delay jitter for SDF stream; start time or end time of QoS control; guidelines for the simultaneous application of QoS control; instructions for concurrent QoS monitoring reporting; and / or QoS control reconfiguration period.

11. The method according to any one of paragraphs 6-10, further comprising the step of: sending information on an authorized QoS control policy applied to control the QoS of at least two SDF flows to a third network function, or receiving QoS control measurements sent by a third network function; wherein at the stage at which the information on the authorized QoS control policy applied for QoS control of at least two SDF flows is sent to the third network function: send information on the authorized QoS control policy to the third network function by applying the policy and cost control (PCC) rule, In this case, the information on the authorized QoS control policy is used to control the QoS of at least two SDF flows.

12. The method according to any one of paragraphs 6-11, further comprising the step of: request an event trigger for QoS reporting; wherein the method additionally includes one of the stages in which: sending threshold information of the third network function, determining whether to perform QoS control of at least two SDF flows, or determining a start time or an end time of QoS control of at least two SDF flows; wherein the threshold information serves to indicate at least one of: delay threshold; time difference threshold; and / or jitter threshold.

13. A communication device comprising: antenna; storage device; and a processor connected respectively to the antenna and to the storage device, wherein the processor is configured to control the transmission and reception of the antenna by executing executable computer instructions stored in the storage device, and implementing the method according to any of paragraphs 1-5.

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