WO2022267705A1

WO2022267705A1 - Quality-of-service setting method and communication device

Info

Publication number: WO2022267705A1
Application number: PCT/CN2022/091165
Authority: WO
Inventors: 陈刚; 金晨哲; 王经纬
Original assignee: 中兴通讯股份有限公司
Priority date: 2021-06-25
Filing date: 2022-05-06
Publication date: 2022-12-29
Also published as: CN113259988B; CN113259988A

Abstract

The present invention provides a quality-of-service setting method, which is applied to a session management function module of a server side. The method comprises: determining, according to a session establishment request received from a user terminal, maximum quality-of-service capability and a current access network type of a session to be created by the user terminal, wherein the maximum quality-of-service capability comprises all quality of service which can be supported by the user terminal, and the current access network type comprises the type of a network to which the user terminal is currently connected; sending a session creation request to a policy control function module of the server side, wherein the session creation request comprises the maximum quality-of-service capability and the current access network type; receiving a session creation response of the policy control function module, wherein the session creation response comprises an authorized quality-of-service parameter; and creating a session, wherein a quality-of-service parameter of the session is set according to the authorized quality-of-service parameter. The present invention further provides a communication device.

Description

Method of service quality setting, communication equipment

technical field

The present disclosure relates to the technical field of service quality assurance.

Background technique

Quality of Service (QoS, Quality of Service) is the performance of the service provided by the communication network to users (such as user terminals), such as guaranteeing a certain bandwidth, delay, packet loss rate, bit error rate, etc. Differentiated QoS guarantees can be provided for different users, such as QoS that requires low latency but is not sensitive to bandwidth requirements, QoS that requires ultra-low latency and certain bandwidth, and QoS that is highly sensitive to data independent networking, etc.

In some cases, it may not be possible to configure correct QoS for the session (or bearer) of the user terminal, resulting in an increase in system load and unable to meet user requirements, affecting user experience.

Contents of the invention

The present disclosure provides a service quality setting method and communication equipment.

The first aspect of the present disclosure provides a method for setting quality of service, which is applied to a session management function module on the server side, and the method includes: according to a session establishment request received from a user terminal, determining the session to be created by the user terminal The maximum quality of service capability and the current access network type of the session, wherein the maximum quality of service capability includes all the quality of service that the user terminal can support, and the current access network type includes the network that the user terminal is currently connected to type; send a session creation request to the policy control function module on the server side, wherein the session creation request includes the maximum service quality capability and the current access network type; receive the session creation from the policy control function module response, wherein the session creation response includes an authorized QoS parameter; and creating the session, wherein the QoS parameter of the session is set according to the authorized QoS parameter.

According to an embodiment of the present disclosure, the method further includes: updating the current access network type in response to a change in the network connected to the user terminal after the session is created; sending a session update to the policy control function module request, wherein the session update request includes an updated current access network type; receive a session update response from the policy control function module, wherein the session update response includes an updated authorized quality of service parameter; and according to the update The authorized QoS parameter of the session is updated to update the QoS parameter of the session.

According to the implementation of the present disclosure, the session creation request further includes: a default quality of service parameter.

According to an implementation of the present disclosure, determining the maximum QoS capability of the session and the current access network type includes: determining the current access network type according to the source module of the session establishment request on the server side; and Determine the maximum QoS capability according to the information of the session establishment request and the source module.

The second aspect of the present disclosure provides a method for setting quality of service, which is applied to a policy control function module on the server side, and the method includes: receiving a session creation request from the session management function module on the server side, wherein the The session creation request includes the maximum quality of service capability and the current access network type of the session to be created by the user terminal, the maximum quality of service capability includes all the quality of service that the user terminal can support, and the current access network type includes all The type of the network to which the user terminal is currently connected; determine the authorized quality of service parameter according to the maximum quality of service capability and the type of the current access network; send a session creation response to the session management function module, wherein the session creation The response includes said authorized quality of service parameters.

According to an embodiment of the present disclosure, the method further includes: after sending the session creation response to the session management function module, receiving a session update request sent by the session management function module, wherein the session update request is included in update the current access network type after the network connected to the user terminal is changed; determine the updated authorized quality of service parameter according to the maximum service quality capability and the updated current access network type; The session management function module sends a session update response; the session update response includes the updated authorized QoS parameter.

According to an embodiment of the present disclosure, according to the maximum quality of service capability and the type of the current access network, determining the authorized quality of service parameter includes: selecting the current access network within the scope of the maximum quality of service capability The QoS parameters supported by the type are the authorized QoS parameters.

According to an embodiment of the present disclosure, determining the authorized QoS parameter according to the maximum QoS capability and the current access network type includes: according to the maximum QoS capability and the current access network type, and the The subscription information of the user terminal is used to determine the authorized service quality parameter.

According to an embodiment of the present disclosure, the session creation request further includes a default QoS parameter, wherein, according to the maximum QoS capability and the current access network type, determining the authorized QoS parameter includes: determining the default The QoS parameter is the authorized QoS parameter.

According to an embodiment of the present disclosure, determining the authorized QoS parameter according to the maximum QoS capability and the current access network type includes: determining the authorized QoS parameter according to a preset decision policy.

A third aspect of the present disclosure provides a communication device, which includes a session management function module, the session management function module includes: one or more processors; and a memory, on which one or more computer programs are stored, when the session management function module When the one or more computer programs are executed by the one or more processors, the method for setting the quality of service as described above can be realized.

A fourth aspect of the present disclosure provides a communication device, which includes a policy control function module, the policy control function module includes: one or more processors; and a memory, on which one or more computer programs are stored, when the When the one or more computer programs are executed by the one or more processors, the above-mentioned method for setting the quality of service as described above can be realized.

Description of drawings

In the drawings of this disclosure:

Figure 1 is a block diagram of a 5G communication system;

Figure 2 is a signaling diagram between the SMF module and the PCF module when setting the quality of service;

Figure 3 is a signaling diagram between the SMF module and the PCF module when setting the quality of service;

FIG. 4 is a flowchart of a method for setting quality of service according to an embodiment of the present disclosure;

FIG. 5 is a flow chart of a method for setting quality of service according to an embodiment of the present disclosure;

FIG. 6 is a flowchart of a method for setting quality of service according to an embodiment of the present disclosure;

FIG. 7 is a flowchart of a method for setting quality of service according to an embodiment of the present disclosure;

8 is a signaling diagram between an SMF module and a PCF module in a method for setting quality of service according to an embodiment of the present disclosure;

9 is a signaling diagram between an SMF module and a PCF module in a method for setting quality of service according to an embodiment of the present disclosure;

FIG. 10 is a signaling diagram between an SMF module and a PCF module in a method for setting quality of service according to an embodiment of the present disclosure;

FIG. 11 is a signaling diagram between an SMF module and a PCF module in a method for setting quality of service according to an embodiment of the present disclosure;

FIG. 12 is a block diagram of a communication device according to an embodiment of the present disclosure;

FIG. 13 is a block diagram of a communication device according to an embodiment of the present disclosure.

detailed description

In order for those skilled in the art to better understand the technical solution of the present disclosure, the method for setting the quality of service and the communication device provided by the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

The present disclosure will be described more fully hereinafter with reference to the accompanying drawings, but the illustrated embodiments may be embodied in different forms, and the present disclosure should not be construed as limited to the embodiments set forth below. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The drawings of the embodiments of the present disclosure are used to provide a further understanding of the embodiments of the present disclosure, and constitute a part of the description, and are used together with the detailed embodiments to explain the present disclosure, and do not constitute a limitation to the present disclosure. The above and other features and advantages will become more apparent to those skilled in the art by describing detailed embodiments with reference to the accompanying drawings.

The present disclosure may be described with reference to plan views and/or cross-sectional views by way of idealized schematic views of the present disclosure. Accordingly, the example illustrations may be modified according to manufacturing techniques and/or tolerances.

In the case of no conflict, various embodiments of the present disclosure and various features in the embodiments can be combined with each other.

The terms used in the present disclosure are for describing specific embodiments only, and are not intended to limit the present disclosure. As used in this disclosure, the term "and/or" includes any and all combinations of one or more of the associated listed items. As used in this disclosure, the singular forms "a" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. As used in the present disclosure, the terms "comprising", "made up of" designate the presence of said features, integers, steps, operations, elements and/or components, but do not exclude the presence or addition of one or more other features, Integrals, steps, operations, elements, components and/or groups thereof.

Unless otherwise defined, all terms (including technical and scientific terms) used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art. It will also be understood that terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art and the present disclosure, and will not be interpreted as having idealized or excessive formal meanings, Unless the disclosure expressly so limited.

The present disclosure is not limited to the embodiments shown in the drawings, but includes modifications of configurations formed based on manufacturing processes. Accordingly, the regions illustrated in the figures have schematic properties, and the shapes of the regions shown in the figures illustrate the specific shapes of the regions of the elements, but are not intended to be limiting.

Figure 1 is a block diagram of a 5G (fifth generation mobile communication technology) communication system.

As shown in Figure 1, the architecture of some modules in the 5G communication device (server side) may include: Session Management Function (SMF, Session Management Function) module, Policy Control Function (PCF, Policy Control Function) module, access and mobility Management function (AMF, Access and Mobility Management Function) module, unified data management (UDM, Unified Data Management) module.

The SMF module is responsible for session establishment, modification, release, user terminal (UE, User Equipment) IP allocation and management, etc.

The PCF module is responsible for determining the quality of service (QoS, Quality of Service) parameters, charging, access mobility policy control, etc., and the PCF module in Figure 1 may actually be a PCF pool including multiple PCF devices.

The AMF module performs UE registration, connection, reachability, mobility management, etc., and provides a session management message transmission channel for the UE and the SMF module.

The UDM module is used for user identification, access authorization, registration, subscription, etc.

The AMF module and the UE can be connected through the N1 interface, the AMF module and the SMF module can be connected through the N11 interface, the AMF module and the PCF module can be connected through the N15 interface, and the AMF module and the UDM module can be connected through the N8 interface , the SMF module and the PCF module can be connected through the N7 interface, and the SMF module and the UDM module can be connected through the N10 interface.

When the UE accesses from different networks, the QoS setting for the session (bearer) established by the UE may be wrong. For example, for an "interoperable UE" that can be accessed from both a 5G network and a 4G (fourth generation mobile communication technology) network, the QoS setting process may occur as described with reference to Figure 2 and Figure 3 .

Fig. 2 is a signaling diagram between the SMF module and the PCF module when setting the service quality.

Referring to Figure 2, the interoperable UE first accesses from the 5G network, then the process of setting QoS includes steps A101 to A110.

In step A101, the SMF module receives a session establishment request sent by a user terminal.

For example, the session establishment request is a request for establishing a Protocol Data Unit (PDU, Protocol Data Unit) session.

In step A102, the SMF module sends a session creation request to the PCF module.

The session creation request includes SUPI (Subscription Permanent Identifier, subscription permanent identifier), GPSI (Generic Public Subscription Identifier, general public subscription identifier), IP, DNN (Data Network Name, data network name), etc.

Since the interoperable UE is currently accessing from the 5G network, the session creation request also includes the current access network type (RAT, Radio Access Network Type), which indicates that the network currently accessed by the UE is a 5G network.

At the same time, the SMF module will obtain the default QoS parameters corresponding to the interoperable UE from the UDM module, such as GBR (Guaranteed Bit Rate, guaranteed bit rate) type 5qi (5G QoS parameter scalar), ARP (Allocation Retention Priority, allocation retention priority ), maximum bandwidth, guaranteed bandwidth, delay, bit error rate, packet loss rate, etc., and add them to the session creation request.

In step A103, the PCF module determines the authorized QoS parameters.

The PCF module decides to authorize QoS parameters based on the slice, current access network type, and UE subscription information (such as subscription package type), such as GBR type 5qi, ARP, maximum bandwidth, guaranteed bandwidth, delay, bit error rate, and packet loss rate etc.

In step A104, the PCF module sends a session creation response to the SMF module.

The session creation response includes session rules, and the session rules include authorized QoS parameters, such as GBR class 5qi, ARP, maximum bandwidth, guaranteed bandwidth, delay, bit error rate, packet loss rate, etc.

In step A105, the SMF module creates a session according to the authorized QoS parameters.

For example, the SMF module executes session rules, sets session QoS, and establishes GBR bearers.

In step A106, the interoperable UE falls back to the 4G network (EPS Fallback).

In step A107, the SMF module sends a session update request.

The session update request includes the current access network type and the EPS Fallback identifier, etc. The current access network type indicates that the network currently accessed by the UE is a 4G network.

In step A108, the PCF module decides to update the authorized QoS parameters.

Since the current interoperable UE becomes connected to the 4G network, the authorized QoS parameters obtained by the PCF module may include Non-GBR (not guaranteed bit rate) type 5qi, ARP, maximum bandwidth, etc.

In step A109, the PCF module sends a session update response to the SMF module.

The session update response includes session rules, which include authorized QoS parameters, such as Non-GBR class 5qi, ARP, maximum bandwidth, and the like.

In step A110, an error occurs.

For example, according to the existing agreement, the SMF module believes that the interoperable UE supports the QoS of the 5G network, such as GBR, so it should not adopt Non-GBR, so that the session update request will be sent again. However, depending on the protocol, the PCF module may reject the session or repeatedly deliver the authorized QoS parameters.

Fig. 3 is another signaling diagram between the SMF module and the PCF module when setting the service quality.

Referring to FIG. 3 , the interoperable UE first accesses from the 4G network, then the process of setting QoS includes steps A201 to A210.

In step A201, the SMF module receives a session establishment request sent by a user terminal.

For example, the session establishment request is a request to establish a PDU session.

In step A202, the SMF module sends a session creation request to the PCF module.

Session creation requests include SUPI, GPSI, IP, DNN, etc.

Since the interoperable UE is currently accessing from the 4G network, the session establishment request also includes the current access network type, which indicates that the network currently accessed by the UE is a 4G network.

At the same time, SMF also obtains default QoS parameters, such as Non-GBR class 5qi, ARP, maximum bandwidth, etc., and adds them to the session creation request together.

In step A203, the PCF module determines the authorized QoS parameters.

The PCF determines the authorized QoS parameters according to the slice, the current access network type, and the subscription information of the UE (such as the subscription package type), such as including Non-GBR type 5qi, ARP, and maximum bandwidth.

In step A204, the PCF module sends a session creation response to the SMF module.

The session creation response includes session rules, which include authorized QoS parameters, such as Non-GBR class 5qi, ARP, maximum bandwidth, and so on.

In step A205, the SMF module creates a session according to the authorized QoS parameters.

For example, the SMF module executes session rules, sets session QoS, and establishes Non-GBR bearers.

In step A206, the interoperable UE switches to the 5G network.

In step A207, the SMF module sends a session update request.

The session update request includes the current access network type, which indicates that the network currently accessed by the UE is a 5G network.

In step A208, the PCF module decides to update the authorized QoS parameters.

Since the current interoperable UE becomes connected to the 5G network, the authorized QoS parameters obtained by PCF may include GBR type 5qi, ARP, maximum bandwidth, guaranteed bandwidth, delay, bit error rate, packet loss rate, etc.

In step A209, the PCF module sends a session update response to the SMF module.

The session update response includes session rules, and the session rules include authorized QoS parameters, such as GBR class 5qi, ARP, maximum bandwidth, guaranteed bandwidth, delay, bit error rate, packet loss rate, etc.

In step A210, an error occurs.

For example, according to the existing protocol, the SMF module believes that the interoperable UE should have set the QoS of GBR before, so the above session update response belongs to repeated authorization, so the session update request will be sent again. However, depending on the protocol, the PCF module may reject the session or repeatedly deliver the authorized QoS parameters.

It can be seen that the above situation may lead to an increase in system load, and the correct QoS cannot be set, thereby failing to meet user requirements and greatly affecting user experience.

FIG. 4 is a flowchart of a method for QoS setting according to an embodiment of the present disclosure.

The QoS setting method described with reference to FIG. 4 is used in the SMF module, that is, the QoS setting method is executed by the SMF module of the communication device (server side) to set the QoS (Quality of Service) of the session (or bearer).

Referring to FIG. 4 , the QoS setting method of the embodiment of the present disclosure includes steps S101 to S104.

In step S101, according to the session establishment request received from the UE, determine the maximum QoS capability of the session and the current access network type.

The maximum QoS capability includes all the QoS supported by the UE that requests to establish a session, and the current access network type includes the type of network that the UE is currently connected to.

The SMF module determines the current wireless network (such as 4G network, 5G network, etc.) through which the UE is currently connected according to the UE's session establishment request (such as the request to establish a PDU session), that is, determines the current access network type.

At the same time, the SMF also determines all QoS that it "possibly" supports (regardless of whether the network supports it) for the UE that requires session creation.

For example, for a 4G/5G interoperable UE, no matter what network it is currently connected to, its maximum QoS capability can support both GBR and non-BGR.

In step S102, a session creation request is sent to the PCF module of the communication device (server side).

The session creation request includes the maximum QoS capability and the current access network type.

The SMF module adds the above maximum QoS capability and the current access network type to the session creation request and sends it to the PCF.

The session creation request may also include SUPI, GPSI, IP, DNN and other content.

In step S103, a session creation response from the PCF module is received.

The session creation response includes authorized QoS parameters.

The SME module receives the session creation response fed back by the PCF module, and the session creation response includes the authorized QoS parameters decided by the PCF module and allowed to be adopted by the SMF module.

Since the PCF module can receive the maximum QoS capability of the session and the current access network type, the authorized QoS parameters determined by the PCF module according to the maximum QoS capability of the session and the current access network type must adapt to both the QoS capability of the UE and the current The connected network is therefore directly usable by the session.

In step S104, a session is created.

The QoS parameters of the session are set according to the authorized QoS parameters.

Since the above authorized QoS parameters must be directly adopted by the session, the SMF module can directly set the QoS of the session (execute session rules) according to the authorized QoS parameters, and create a session (such as a PDU session).

According to the implementation of the present disclosure, by adding the maximum QoS capability of the session in the session creation request, it can be ensured that the correct authorized QoS parameters can be obtained according to the PCF module, thereby correctly implementing session-level QoS settings, avoiding system abnormalities, and improving system robustness To ensure that the needs of users are met, and to improve user experience.

FIG. 5 is a flowchart of a method for QoS setting according to an embodiment of the present disclosure.

The QoS setting method described with reference to FIG. 5 is used in the SMF module, that is, the QoS setting method is executed by the SMF module of the communication device (server side) to set the QoS (Quality of Service) of the session (or bearer). The method for setting QoS includes steps S101 to S108, wherein steps S101 to S104 are the same as steps S101 to S104 described with reference to FIG.

Referring to FIG. 5, after the session is created (S104), steps S105 to S108 are also included.

In step S105, in response to the change of the network connected to the UE, the current access network type is updated.

When the network to which the UE is connected changes (such as falling back or switching networks), the current access network type naturally also changes, so the SMF module needs to update the current access network type.

In step S106, a session update request is sent to the PCF module.

The session update request includes an updated current access network type.

The SMF module sends a session update request to the PCF module, notifying the PCF module of the updated current access network type.

When the access network changes, the UE's maximum QoS capability does not change, so the session update request does not include the maximum QoS capability.

In step S107, a session update response sent by the PCF module is received.

The session update response includes updated authorized QoS parameters.

The SMF module receives the session update response from the PCF module, and the session update response includes the updated authorized QoS parameters determined according to the updated current access network type.

In step S108, the QoS parameters of the session are updated according to the updated authorized QoS parameters.

The above updated authorized QoS parameters must not only adapt to the maximum QoS capability, but also adapt to the updated access network, so the SMF module can update the QoS parameters of the session according to the updated authorized QoS parameters.

According to an embodiment of the present disclosure, the session creation request further includes: default QoS parameters.

According to the embodiment of the present disclosure, the SMF module can also obtain default QoS parameters (for example, obtained from UDM), and add them to the session creation request and send them to the PCF module.

According to an embodiment of the present disclosure, determining the maximum QoS capability and the current access network type of the session ( S101 ) includes step S1011 .

In step S1011, the current access network type is determined according to the source module of the session establishment request; and the maximum QoS capability is determined according to the information of the session establishment request and the source module.

For example, the SMF module can determine the current access network type according to the source module of the session establishment request (or which module the UE accesses from), and determine the maximum QoS capability according to the information of the session establishment request and the source module.

For example, the AMF module can determine whether the UE has the interoperability capability according to the UE's wireless capability, subscription data, core network type, etc., and can send the interoperability identifier as information of the session establishment request to the SMF module.

Therefore, if the SMF (or integrated xGW/SMF) module finds that the session establishment request is accessed from the AMF module and does not carry an interoperability identifier when creating a session, it can be considered that the current access network type is a 5G network, and the maximum QoS Capabilities include support for GBR.

If the SMF (or integrated xGW/SMF) module finds that the session establishment request is accessed from the AMF module and carries the interoperability identifier when creating a session, it can be considered that the current access network type is a 5G network, and the maximum QoS capability includes supporting GBR and Non-GBR.

If the SMF (or integrated xGW/SMF) module finds that the session establishment request is accessed from the Mobility Management Entity (MME, Mobility Management Entity) module when creating a session, it can be considered that the current access network type is a 4G network, and the maximum QoS capability Includes support for Non-GBR.

According to different network architectures, the SMF module determines the maximum QoS capability and the specific way of the current access network type in various ways, which will not be described in detail here.

FIG. 6 is a flowchart of a method for QoS setting according to an embodiment of the present disclosure.

The QoS setting method described with reference to FIG. 6 is used in the PCF module, that is, the QoS setting method is executed by the PCF module of the communication device (server side) to set the QoS (Quality of Service) of the session (or bearer).

Referring to FIG. 6 , the method of QoS setting according to an embodiment of the present disclosure includes steps S201 to S203.

In step S201, a session creation request from an SMF module is received.

The session creation request includes the maximum QoS capability and the current access network type of the session to be created. The maximum QoS capability includes all the QoS supported by the UE that requests to establish a session, and the current access network type includes the type of network that the UE is currently connected to.

The PCF module receives the session creation request from the SMF module, which includes the maximum QoS capability and the current access network type.

In step S202, the authorized QoS parameters are determined according to the maximum QoS capability and the current access network type.

The PCF module can determine the authorized QoS parameters according to the maximum QoS capability and the current access network type. The authorized QoS parameters at this time must not only adapt to the QoS capability of the UE, but also adapt to the currently connected network.

In step S203, a session establishment response is sent to the SMF module.

The session creation response includes authorized QoS parameters.

The PCF module adds the authorized QoS parameter to the session creation response and sends it to the SMF module.

FIG. 7 is a flow chart of a method for setting quality of service according to an embodiment of the present disclosure.

The QoS setting method described with reference to FIG. 7 is used in the PCF module, that is, the QoS setting method is executed by the PCF module of the communication device (server side) to set the QoS (Quality of Service) of the session (or bearer). The method for setting QoS includes steps S201 to S203, wherein steps S201 to S203 are the same as steps S201 to S203 described with reference to FIG.

Referring to FIG. 7, after sending the session creation response to the SMF module (S203), steps S204 to S206 are also included.

In step S204, a session update request sent by the SMF module is received.

The session update request includes the updated current access network type after the network to which the UE is connected changes.

In step S205, an updated authorized QoS parameter is determined according to the maximum QoS capability and the updated current access network type.

In step S206, a session update response is sent to the SMF module. The session update response includes updated authorized QoS parameters.

As mentioned above, when the network connected to the UE changes (fallback or handover), the SMF module will send a session update request, which carries the updated current access network type, so the PCF can use the updated current access network type , and the maximum QoS capability previously obtained from the session creation request, determine the updated authorized QoS parameters, and send it to the SMF module with the session update response.

According to an embodiment of the present disclosure, according to the maximum QoS capability and the current access network type, determining authorized QoS parameters (S202) includes step S2021.

In step S2021, within the scope of the maximum QoS capability, select the QoS parameters supported by the current access network type as authorized QoS parameters.

That is to say, the authorized QoS parameters determined by the PCF module must be the parameters supported by the above maximum QoS capability, and also meet the requirements of the current access network.

According to an embodiment of the present disclosure, according to the maximum QoS capability and the current access network type, determining authorized QoS parameters (S202) includes step S2022.

In step S2022, the authorized QoS parameters are determined according to the maximum QoS capability, the current access network type, and the subscription information of the UE.

According to the embodiments of the present disclosure, when determining the authorized QoS parameters, the PCF module may also refer to other information such as UE subscription information (such as subscription package) and slices, in addition to the maximum QoS capability and the current access network type.

According to the implementation of the present disclosure, the session creation request also includes default QoS parameters, in this case, according to the maximum QoS capability and the current access network type, determining authorized QoS parameters (S202) includes step S2023.

In step S2023, it is determined that the default QoS parameter is the authorized QoS parameter, or, according to a preset decision policy, the authorized QoS parameter is determined.

According to the embodiment of the present disclosure, the PCF module may adopt the default QoS parameters in the session creation request, or determine the authorized QoS parameters according to the slice, subscription information of the UE, etc. according to a preset decision-making strategy.

The method for setting QoS according to the embodiment of the present disclosure will be described in detail below with reference to the signaling diagram.

Fig. 8 is a signaling diagram between an SMF module and a PCF module in a method for setting quality of service according to an embodiment of the present disclosure.

Referring to FIG. 8 , for pure 4G (only supporting 4G network) UE, the method for setting QoS may include steps B101 to B105.

In step B101, the SMF module receives a session establishment request sent by the UE.

The session establishment request is a request from the UE to establish a PDU session.

In step B102, the SMF module sends a session creation request to the PCF module.

The SMF module determines that the current access network type is a 4G network, the maximum QoS capability includes supporting NoN-GBR, adds the current access network type and maximum QoS capability to the session creation request, and sends the session creation request to the PCF.

At the same time, SMF can also obtain the default QoS parameters corresponding to the UE from the UDM module, such as NoN-GBR class 5qi, ARP, maximum bandwidth, etc., and join the session creation request together with SUPI, GPSI, IP, DNN, etc.

In step B103, the PCF module determines the authorized QoS parameters.

The PCF module determines authorized QoS parameters based on the maximum QoS capability, current access network type, slice, UE subscription information (such as subscription package type), such as Non-GBR type 5qi, ARP, maximum bandwidth, etc.

In step B104, the PCF module sends a session creation response to the SMF module.

In step B105, the SMF module creates a session according to the authorized QoS parameters.

Fig. 9 is a signaling diagram between an SMF module and a PCF module in a method for setting quality of service according to an embodiment of the present disclosure.

Referring to Fig. 9, for pure 5G (only supports 5G network) UE, the method for setting QoS may include steps B201 to B205.

In step B201, the SMF module receives a session establishment request sent by the UE.

For example, the session establishment request is a request from the UE to establish a PDU session.

In step B202, the SMF module sends a session creation request to the PCF module.

The SMF module determines that the current access network type is a 5G network, and the maximum QoS capability includes supporting GBR, adds the current access network type and maximum QoS capability to the session creation request, and sends the session creation request to the PCF module.

At the same time, the SMF module can obtain the default QoS parameters corresponding to the UE from the UDM module, such as GBR class 5qi, ARP, maximum bandwidth, guaranteed bandwidth, delay, bit error rate, packet loss rate, etc., and communicate with SUPI, GPSI, IP, DNN, etc. are added to the session creation request.

In step B203, the PCF module determines the authorized QoS parameters.

The PCF module decides to authorize QoS parameters based on the maximum QoS capability, current access network type, slice, UE subscription information (such as subscription package type), such as GBR type 5qi, ARP, maximum bandwidth, guaranteed bandwidth, delay, delay, etc. Bit rate, packet loss rate, etc.

In step B204, the PCF module sends a session creation response to the SMF module.

In step B205, the SMF module creates a session according to the authorized QoS parameters.

Fig. 10 is a signaling diagram between an SMF module and a PCF module in a method for setting quality of service according to an embodiment of the present disclosure.

Referring to FIG. 10 , for a 4G/5G interoperable UE (supporting 4G network and 5G network), if it first accesses from a 5G network, the method for setting QoS may include steps B301 to B310.

In step B301, the SMF module receives a session establishment request sent by the UE.

In step B302, the SMF module sends a session creation request to the PCF module.

The SMF module determines that the current access network type is a 5G network, the maximum QoS capability includes supporting GBR and Non-GBR, adds the current access network type and maximum QoS capability to the session creation request, and sends the session creation request to the PCF.

In step B303, the PCF module determines the authorized QoS parameters.

In step B304, the PCF module sends a session creation response to the SMF module.

In step B305, the SMF module creates a session according to the authorized QoS parameters.

In step B306, the UE falls back to the 4G network (EPS Fallback).

In step B307, the SMF module sends a session update request.

The session update request includes the updated current access network type, which indicates that the network type currently accessed by the UE is a 4G network, and the EPS Fallback identifier, etc.

In step B308, the PCF module decides to update the authorized QoS parameters.

Since the current UE becomes connected to the 4G network, the updated authorized QoS parameters obtained by the PCF module include Non-GBR type 5qi, ARP, and maximum bandwidth.

In step B309, the PCF module sends a session update response to the SMF module.

The session update response includes session rules, which include updated authorized QoS parameters, such as Non-GBR class 5qi, ARP, maximum bandwidth, and so on.

In step B310, the SMF module updates the session.

The SMF module executes the session rules, and modifies the QoS parameters of the session according to the updated authorized QoS parameters, such as establishing a Non-GBR bearer.

Fig. 11 is a signaling diagram between an SMF module and a PCF module in a method for setting quality of service according to an embodiment of the present disclosure.

Referring to FIG. 11 , for a 4G/5G interoperable UE (supporting 4G and 5G networks), if it first accesses from a 4G network, the method for setting QoS may include steps B401 to B410.

In step B401, the SMF module receives a session establishment request sent by the UE.

In step B402, the SMF module sends a session creation request to the PCF module.

The SMF module determines that the current access network type is a 4G network, and the maximum QoS capability includes supporting GBR and NoN-GBR, adds the current access network type and maximum QoS capability to the session creation request, and sends the session creation request to the PCF.

At the same time, the SMF module can obtain the default QoS parameters corresponding to the UE from the UDM module, such as NoN-GBR class 5qi, ARP, maximum bandwidth, etc., and add the session creation request together with SUPI, GPSI, IP, DNN, etc.

In step B403, the PCF module determines the authorized QoS parameters.

The PCF determines the authorized QoS parameters based on the maximum QoS capability, current access network type, slice, UE subscription information (such as subscription package type), such as Non-GBR type 5qi, ARP, maximum bandwidth, etc.

In step B404, the PCF module sends a session creation response to the SMF module.

In step B405, the SMF module creates a session according to the authorized QoS parameters.

In step B406, the UE switches to the 5G network.

In step B407, the SMF module sends a session update request.

The session update request includes an updated current access network type, which indicates that the network type currently accessed by the UE is a 5G network.

In step B408, the PCF module decides to update the authorized QoS parameters.

Since the current UE is connected to the 5G network, the updated authorized QoS parameters obtained by the PCF include GBR type 5qi, ARP, maximum bandwidth, guaranteed bandwidth, delay, bit error rate, and packet loss rate.

In step B409, the PCF module sends a session update response to the SMF module.

The session update response includes session rules, which include updated authorized QoS parameters, such as GBR class 5qi, ARP, maximum bandwidth, guaranteed bandwidth, delay, bit error rate, packet loss rate, etc.

In step B410, the SMF module updates the session.

The SMF module executes the session rules, and modifies the QoS parameters of the session according to the updated authorized QoS parameters, such as establishing the GBR bearer.

FIG. 12 is a block diagram of a communication device according to an embodiment of the present disclosure.

Referring to FIG. 12 , a communication device according to an embodiment of the present disclosure includes an SMF module including: one or more processors and a memory.

One or more computer programs are stored in the memory, and when the one or more computer programs are executed by one or more processors, the above-mentioned QoS setting method can be realized.

The communication device of the embodiment of the present disclosure includes the above SMF module. Since the communication device is on the server side, it may also include other modules on the server side, which will not be described in detail here.

Referring to FIG. 13 , a communication device according to an embodiment of the present disclosure includes a PCF module including: one or more processors and a memory.

A communication device according to an embodiment of the present disclosure includes the above PCF module. Since the communication device is on the server side, it may also include other modules on the server side, which will not be described in detail here.

In the embodiments of the present disclosure, a processor is a device capable of data processing, including but not limited to a central processing unit (CPU). Memory is a device with data storage capability, including but not limited to random access memory (RAM, more specifically SDRAM, DDR, etc.), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory (FLASH); the I/O interface (read-write interface) is connected between the processor and the memory, and can realize information exchange between the memory and the processor, including but not limited to a data bus (Bus).

Those of ordinary skill in the art can understand that all or some of the steps, systems, and functional modules/units in the devices disclosed above can be implemented as software, firmware, hardware, and an appropriate combination thereof.

In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical components. Components cooperate to execute.

Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit (CPU), digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as ASIC. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As known to those of ordinary skill in the art, the term computer storage media includes both volatile and nonvolatile media implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules, or other data. permanent, removable and non-removable media. Computer storage media include but not limited to random access memory (RAM, more specifically SDRAM, DDR, etc.), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory (FLASH) or other disk storage ; compact disc read-only (CD-ROM), digital versatile disc (DVD) or other optical disk storage; magnetic cartridge, magnetic tape, magnetic disk storage or other magnetic storage; any other that can be used to store desired information and that can be accessed by a computer medium. In addition, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media .

This disclosure has disclosed example embodiments and, although specific terms have been employed, they are used and should be construed in a generic descriptive sense only and not for purposes of limitation. In some instances, it will be apparent to those skilled in the art that features, characteristics and/or elements described in connection with a particular embodiment may be used alone, or may be described in combination with other embodiments, unless explicitly stated otherwise. Combinations of features and/or elements. Accordingly, it will be understood by those of ordinary skill in the art that various changes in form and details may be made without departing from the scope of the present disclosure as set forth in the appended claims.

Claims

A method for quality of service setting, which is applied to a session management function module on the server side, the method comprising:

According to the session establishment request received from the user terminal, determine the maximum quality of service capability and the current access network type of the session to be created by the user terminal, where the maximum quality of service capability includes all the quality of service that the user terminal can support , the current access network type includes the type of the network to which the user terminal is currently connected;

sending a session creation request to the policy control function module on the server side, where the session creation request includes the maximum quality of service capability and the current access network type;

receiving a session creation response from the policy control function, wherein the session creation response includes an authorized quality of service parameter; and

creating the session, wherein the QoS parameter of the session is set according to the authorized QoS parameter.
The method according to claim 1, further comprising:

After the session is created, updating the current access network type in response to a change in the network connected to the user terminal;

Sending a session update request to the policy control function module, wherein the session update request includes an updated current access network type;

receiving a session update response from the policy control function, wherein the session update response includes an updated authorized quality of service parameter; and

Updating the QoS parameter of the session according to the updated authorized QoS parameter.
The method according to claim 1, wherein,

The session creation request further includes: default quality of service parameters.
The method of claim 1, wherein determining the session's maximum quality of service capability and the current access network type comprises:

Determine the current access network type according to the source module of the session establishment request on the server side; and

Determine the maximum QoS capability according to the information of the session establishment request and the source module.
A method for setting quality of service, which is applied to a policy control function module on the server side, the method comprising:

receiving a session creation request from the session management function module on the server side, wherein the session creation request includes the maximum quality of service capability and the current access network type of the session to be created by the user terminal, and the maximum quality of service capability includes the All the qualities of service that the user terminal can support, the current access network type includes the type of the network to which the user terminal is currently connected;

determining an authorized quality of service parameter according to the maximum quality of service capability and the current access network type;

sending a session creation response to the session management function module, wherein the session creation response includes the authorized QoS parameter.
The method according to claim 5, further comprising:

After sending the session creation response to the session management function module, receive a session update request sent by the session management function module, wherein the session update request includes an update after the network connected to the user terminal changes Current access network type;

determining an updated authorized quality of service parameter according to the maximum quality of service capability and the updated current access network type;

Sending a session update response to the session management function module, where the session update response includes an updated authorized QoS parameter.
The method according to claim 5, wherein, according to the maximum quality of service capability and the current access network type, determining the authorized quality of service parameters comprises:

Within the scope of the maximum quality of service capability, select a quality of service parameter that can be supported by the current access network type as the authorized quality of service parameter.
The method according to claim 5, wherein, according to the maximum quality of service capability and the current access network type, determining the authorized quality of service parameters comprises:

Determine the authorized QoS parameter according to the maximum QoS capability, the current access network type, and the subscription information of the user terminal.
The method according to claim 5, wherein the session creation request further includes a default quality of service parameter,

Wherein, according to the maximum service quality capability and the current access network type, determining the authorized service quality parameter includes:

Determining the default QoS parameter as the authorized QoS parameter.
The method according to claim 5, wherein, according to the maximum quality of service capability and the current access network type, determining the authorized quality of service parameters comprises:

The authorized service quality parameters are determined according to a preset decision policy.
A communication device, comprising a session management function module, the session management function module including:

one or more processors; and

memory, on which one or more computer programs are stored, when said one or more computer programs are executed by said one or more processors, the quality of service according to any one of claims 1 to 4 can be realized The method of setting.
A communication device, which includes a policy control function module, and the policy control function module includes:

one or more processors; and

memory having stored thereon one or more computer programs which, when executed by said one or more processors, enable a quality of service as claimed in any one of claims 5 to 10 The method of setting.