CN114125882A

CN114125882A - Resource transmission guaranteeing method, device and system

Info

Publication number: CN114125882A
Application number: CN202010899848.8A
Authority: CN
Inventors: 陆长奇; 宗在峰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2022-03-01
Also published as: WO2022042480A1

Abstract

The application provides a resource transmission guaranteeing method, device and system. The method comprises the following steps: the PCF network element determines a resource transmission ID applicable to a first service flow according to the description information of the first service flow; generating a first message, where the first message is used to indicate that the first service flow is applicable to a transmission resource corresponding to the resource transmission ID; and sending the first message to an SMF network element, and indicating the SMF network element to configure the transmission resource corresponding to the resource transmission ID for the first service flow according to the first message. Based on the scheme, the first service Flow directly corresponds to the resource transmission ID, the transmission resource is configured for the first service Flow by taking QoS Flow as granularity, the transmission resource corresponding to the PDU session is not required to be fixedly configured according to the PDU session where the service Flow is located, the transmission resource configured for the service Flow is more attached to the service Flow, the actual transmission requirement of the service Flow is better met, and the adaptability is higher.

Description

Resource transmission guaranteeing method, device and system

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, and a system for guaranteeing resource transmission.

Background

When the existing 5G network architecture carries out communication transmission, network resource guarantee is mainly provided through network slices, so that user plane network equipment can carry out resource guarantee according to configured network slices. Before the terminal device uses the network slice to perform communication transmission, a corresponding relation between a Protocol Data Unit (PDU) session (session) and the network slice is defined in advance, so that when performing communication transmission, an applicable network slice is determined according to the PDU session to which a quality of service (QoS) Flow (Flow) belongs. For example, as shown in fig. 1, the network slice corresponding to PDU session1 is network slice 1, and the network slice corresponding to PDU session2 is network slice 2. That is, the PDU session1 can only perform communication transmission according to the attribute of the network slice 1, and the QoS Flow in the PDU session2 can only perform communication transmission according to the attribute of the network slice 2.

However, in the actual communication transmission process, the resource transmission configuration expected by each service flow does not necessarily conform to the attribute of the network slice corresponding to the PDU session.

However, the current resource transmission guarantee method cannot flexibly configure resource transmission according to QoS Flow, and cannot meet actual requirements.

Disclosure of Invention

The application provides a resource transmission guarantee method, device and system, which are used for providing a flexible resource transmission configuration mode based on QoS Flow granularity.

In a first aspect, the present application provides a resource transmission guaranteeing method, including: a Policy Control Function (PCF) network element determines a resource transmission ID applicable to a first service flow according to description information of the first service flow; the PCF network element generates a first message, wherein the first message is used for indicating that the first service flow is applicable to the transmission resource corresponding to the resource transmission ID; and the PCF network element sends the first message to a Session Management Function (SMF) network element, and instructs the SMF network element to configure a transmission resource corresponding to the resource transmission ID for the first service flow according to the first message.

Based on the above scheme, the embodiments of the present application provide that QoS Flow is used as a granularity to configure transmission resources for a first service Flow, that is, the first service Flow directly corresponds to a resource transmission ID, that is, different service flows in the same PDU session may configure different transmission resources according to actual conditions, and it is not necessary to fixedly configure the transmission resources corresponding to the PDU session according to the PDU session in which the service Flow is located. Therefore, transmission resources can be flexibly configured for the service flow based on the actual condition of the service flow, the transmission resources configured for the service flow are more attached to the service flow, the actual transmission requirement of the service flow is better met, and the adaptability is higher.

As a possible implementation method, before the PCF network element determines, according to the description information of a first service flow, a resource transmission ID applicable to the first service flow, the PCF network element receives a first request sent by the SMF network element, where the first request is used for the SMF network element to apply for the resource transmission ID as the resource transmission ID applicable to the first service flow from the PCF network element.

Based on the foregoing solution, an embodiment of the present application provides a manner for a PCF network element to determine a resource transmission ID applicable to a first service flow, for example, the PCF network element is determined according to a received first request sent by the SMF network element, where the first request is used for the SMF network element to apply the resource transmission ID to the PCF network element as the resource transmission ID applicable to the first service flow.

As a possible implementation method, the PCF network element determines the resource transmission ID applicable to the first service flow according to the correspondence between the description information of different service flows and the resource transmission IDs of different transmission resources and the description information of the first service flow.

Based on the foregoing solution, an embodiment of the present application provides a second way for a PCF network element to determine a resource transmission ID applicable to a first service flow, for example, the PCF network element is determined according to a correspondence between description information of different service flows and resource transmission IDs of different transmission resources and description information of the first service flow, where the correspondence between the description information of different service flows and the resource transmission IDs of different transmission resources may be stored in the PCF network element, so that after the PCF network element receives the first service flow, according to the description information of the first service flow, a correspondence between the description information of different service flows and the resource transmission IDs of different transmission resources is searched for, and the resource transmission ID applicable to the first service flow is determined.

As a possible implementation method, the PCF Network element receives a third request sent by a Network open Function (NEF) Network element or an Application Function (AF) Network element, where the third request is used for the NEF or AF Network element to apply the resource transmission ID to the PCF Network element as a resource transmission ID applicable to the first service flow.

Based on the foregoing solution, an embodiment of the present application provides a third manner for determining a resource transmission ID applicable to the first service flow by a PCF network element, for example, the PCF network element is determined according to a received third request sent by an NEF network element or an AF network element, where the third request is used for the SMF network element to apply the resource transmission ID to the PCF network element as the resource transmission ID applicable to the first service flow.

As a possible implementation method, the description field in the first message generated by the PCF network element carries description information of the first service flow, and the idle field in the description field carries the resource transmission ID; or the description field in the first message generated by the PCF network element carries the description information of the first service flow, and a new field is extended in the description field and the resource transmission ID is carried in the new field; or the first message generated by the PCF network element is a policy control and charging PCC rule indicating that the description information of the first service flow has a correspondence with a resource transmission ID.

Based on the above scheme, the embodiment of the application provides a plurality of first message construction modes, different construction modes can be selected according to actual conditions to set the first message, and the applicability is stronger.

As a possible implementation, different resource transmission IDs are used to indicate different network slices.

Based on the above scheme, the embodiments of the present application provide an effect of a resource transmission ID, that is, the resource transmission ID is used to indicate different network slices.

As a possible implementation method, the resource transmission ID is auxiliary information S-NSSAI selected for a single network slice of the corresponding network slice.

Based on the above scheme, the embodiment of the present application provides a representation manner of a resource transmission ID, that is, the resource transmission ID is represented by single network slice selection auxiliary information S-NSSAI of a network slice.

As a possible implementation method, the first request is determined by the SMF network element according to a second request sent by a terminal device, and the second request is used for the terminal device to apply the resource transmission ID to the PCF network element through the SMF network element as a resource transmission ID applicable to the first service flow.

Based on the foregoing solution, an embodiment of the present application provides a manner how an SMF network element determines the first request, for example, the first request is determined by the SMF network element according to a second request sent by a terminal device, where the second request is used for the terminal device to apply, through the SMF network element, to the PCF network element, the resource transmission ID as a resource transmission ID applicable to the first service flow.

As a possible implementation method, the second request is a Protocol Data Unit (PDU) session modification request.

As a possible implementation method, after the PCF network element sends the first message to the SMF network element, the PCF network element receives a response message fed back by the SMF network element, where the response message is used to indicate whether the SMF network element successfully receives the first message.

Based on the above scheme, in this embodiment of the present application, after the PCF network element sends the first message to the SMF network element, the PCF network element receives a response message fed back by the SMF network element, so that the PCF network element can timely know about the sending condition of the first message.

As a possible implementation method, the PCF network element sends the response message to the AF or the NEF.

Based on the above scheme, in this embodiment of the present application, the PCF network element sends the response message to the AF or the NEF, so that the AF or the NEF can know the sending condition of the third message in time.

As a possible implementation method, the first message is further used to instruct the SMF network element to perform service isolation.

Based on the above scheme, in this embodiment of the present application, the first message may also be used to instruct the SMF network element to perform service isolation, so that the applicability is stronger.

As a possible implementation method, the PCF network element sends the first message to the SMF network element through an Npcf _ SMPolicyControl _ UpdateNotify message.

Based on the foregoing solution, an embodiment of the present application provides a manner for sending the first message, that is, the PCF network element sends the first message to the SMF network element through an Npcf _ SMPolicyControl _ UpdateNotify message.

In a second aspect, the present application provides a resource transmission guaranteeing method, including:

a Session Management Function (SMF) network element receives a first message from a Policy Control Function (PCF) network element, wherein the first message is used for indicating a resource transmission ID applicable to a first service flow; and the SMF network element configures transmission resources corresponding to the resource transmission ID for the first service flow according to the first message.

As a possible implementation method, the SMF network element generates a second message according to the first message, where the second message is used to indicate that the first service flow is applicable to the transmission resource corresponding to the resource transmission ID; and the SMF network element sends the second message to a Radio Access Network (RAN) and indicates the RAN to configure transmission resources corresponding to the resource transmission ID for the first service flow according to the second message.

Based on the foregoing solution, an embodiment of the present application provides a manner how an SMF network element notifies a RAN network element of a resource transmission ID applicable to a first service flow, for example, the SMF network element sends, to the RAN network element, a second message having a transmission resource indicating that the RAN configures a transmission resource corresponding to the resource transmission ID for the first service flow.

As a possible implementation method, a quality of service Flow Identifier (QFI) of the first traffic Flow is carried in a description field in the second message generated by the SMF network element, an idle field in the description field carries the resource transmission ID, and the QFI of the first traffic Flow is generated by the SMF network element according to description information of the first traffic Flow in the first message; or the QFI of the first service flow is carried in the description field in the second message generated by the SMF network element, a new field is extended in the description field, and the resource transmission ID is carried in the new field; or the second message generated by the SMF network element is a stream configuration file QoS Profile indicating that the description information of the first service stream and the resource transmission ID have a corresponding relationship.

Based on the above scheme, the embodiment of the application provides a plurality of second message construction modes, different construction modes can be selected according to actual conditions to set the second message, and the applicability is stronger.

As a possible implementation method, the SMF network element generates a third message according to the first message, where the third message is used to indicate that the first service flow is applicable to the transmission resource corresponding to the resource transmission ID; and the SMF network element sends the third message to a User Plane Function (UPF), and indicates the UPF to configure a transmission resource corresponding to the resource transmission ID for the first service flow according to the third message.

Based on the foregoing solution, an embodiment of the present application provides a manner how an SMF network element notifies a UPF network element of a resource transmission ID applicable to a first service flow, for example, the SMF network element sends, to the UPF network element, a third message having a transmission resource indicating that the UPF network element configures the resource transmission ID corresponding to the resource transmission ID.

As a possible implementation method, the qos flow identifier QFI of the first service flow is carried in a description field in the third message generated by the SMF network element, an idle field in the description field carries the resource transmission ID, and the QFI of the first service flow is generated by the SMF network element according to description information of the first service flow in the first message; or the QFI of the first service flow is carried in a description field in the third message generated by the SMF network element, a new field is extended in the description field, and the resource transmission ID is carried in the new field; or the third message generated by the SMF network element is a packet detection rule PDR indicating that the description information of the first service flow and the resource transmission ID have a corresponding relationship.

Based on the above scheme, the embodiment of the application provides multiple third message construction modes, different construction modes can be selected according to actual conditions to set the third message, and the applicability is stronger.

As a possible implementation method, before the SMF network element receives a first message from the PCF network element, the SMF network element sends a first request to the PCF network element, where the first request is used for the SMF network element to apply the resource transmission ID to the PCF network element as a resource transmission ID applicable to the first service flow.

As a possible implementation method, the second message further includes user plane transmission tunnel information allocated for the specific service flow.

Based on the above scheme, in this embodiment of the present application, the second message further includes user plane transmission tunnel information allocated for the specific service flow, so that the applicability is stronger.

As a possible implementation method, the third message further includes tunnel indication information, where the tunnel indication information is used to indicate whether to allocate user plane transmission tunnel information for the first service flow.

Based on the above scheme, in this embodiment of the present application, the third message further includes tunnel indication information, where the tunnel indication information is used to indicate whether to allocate user plane transmission tunnel information for the first service flow, and the applicability is stronger.

In a third aspect, the present application provides a resource transmission guaranteeing method, including:

a User Plane Function (UPF) receives a third message sent by a Session Management Function (SMF) network element, where the third message is used to indicate that the first service flow is applicable to a transmission resource corresponding to the resource transmission ID; and the UPF configures the transmission resource corresponding to the resource transmission ID for the first service flow according to the third message.

As a possible implementation method, the third message is determined by the SMF network element according to the received first message sent by the PCF network element; the description information of the first service flow is carried in a description field in the first message, and an idle field in the description field carries the resource transmission ID; or the description information of the first service flow is carried in the description field in the first message, a new field is expanded in the description field, and the resource transmission ID is carried in the new field; or the first message is a policy control and charging PCC rule indicating that the description information of the first service flow has a corresponding relationship with a resource transmission ID.

Based on the above scheme, the embodiment of the application provides multiple first message construction modes, different construction modes can be selected according to actual conditions to set the third message, and the applicability is stronger.

As a possible implementation method, when the tunnel indication information indicates that user plane transmission tunnel information is allocated for the first service flow, the UPF performs tunnel allocation for the first service flow according to the tunnel indication information, and carries the tunnel information allocated for the first service flow in a response message sent to the SMF network element.

Based on the above scheme, the embodiment of the present application introduces the role of the tunnel indication information.

In a fourth aspect, the present application provides a resource transmission guaranteeing method, including:

a Radio Access Network (RAN) receives a second message sent by a second network element, wherein the second message is used for indicating that the first service flow is applicable to transmission resources corresponding to the resource transmission ID; and the RAN configures transmission resources corresponding to the resource transmission ID for the first service flow according to the second message.

As a possible implementation method, the second message is determined by the SMF network element according to the received first message sent by the PCF network element; the description information of the first service flow is carried in a description field in the first message, and an idle field in the description field carries the resource transmission ID; or the description information of the first service flow is carried in the description field in the first message, a new field is expanded in the description field, and the resource transmission ID is carried in the new field; or the first message is a policy control and charging PCC rule indicating that the description information of the first service flow has a corresponding relationship with a resource transmission ID.

As a possible implementation method, the qos flow identifier QFI of the first service flow is carried in a description field in the second message generated by the SMF network element, an idle field in the description field carries the resource transmission ID, and the QFI of the first service flow is generated by the SMF network element according to description information of the first service flow in the first message; or the QFI of the first service flow is carried in the description field in the second message generated by the SMF network element, a new field is extended in the description field, and the resource transmission ID is carried in the new field; or the second message generated by the SMF network element is a stream configuration file QoS Profile indicating that the description information of the first service stream and the resource transmission ID have a corresponding relationship.

In a fifth aspect, an embodiment of the present application provides a resource transmission guaranteeing apparatus, which may be a PCF network element, and may also be a chip for the PCF network element. The apparatus has each implementation method that implements the first aspect or the first aspect described above. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a sixth aspect, an embodiment of the present application provides a resource transmission guaranteeing apparatus, which may be an SMF network element, and may also be a chip for the SMF network element. The apparatus has a function of implementing the second aspect or each implementation method of the second aspect. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a seventh aspect, an embodiment of the present application provides a resource transmission guaranteeing apparatus, where the apparatus may be a UPF network element, and may also be a chip for the UPF network element. The apparatus has a function of implementing the third aspect or each implementation method of the third aspect. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In an eighth aspect, an embodiment of the present application provides a resource transmission securing apparatus, where the apparatus may be a RAN or a chip for the RAN. The apparatus has a function of implementing each implementation method of the fourth aspect or the fourth aspect. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a ninth aspect, an embodiment of the present application provides a resource transmission guaranteeing apparatus, including a processor and a memory; the memory is used for storing computer executable instructions, and when the apparatus is running, the processor executes the computer executable instructions stored in the memory, so as to cause the apparatus to execute any one of the first aspect to the fourth aspect; or perform any of the methods in any possible implementation manners of the first to fourth aspects described above.

In a tenth aspect, embodiments of the present application further provide a computer-readable storage medium, having stored therein instructions that, when executed on a computer, cause the processor to perform any one of the first to fourth aspects described above; or to perform any of the methods of any possible implementation manners of the first to fourth aspects described above.

In an eleventh aspect, embodiments of the present application further provide a computer program product, where the computer program product includes a computer program that, when executed, causes a processor to execute any one of the first aspect to the fourth aspect; or perform any of the methods in any possible implementation manners of the first to fourth aspects described above.

In a twelfth aspect, an embodiment of the present application further provides a chip system, which includes a processor and a memory. The memory is used for storing a computer program; the processor is used for calling and running the computer program from the memory so that the device provided with the chip system executes any one of the first aspect to the fourth aspect; or perform any of the methods in any possible implementation manners of the first to fourth aspects described above.

In a thirteenth aspect, an embodiment of the present application further provides a system for guaranteeing resource transmission, including: PCF network element, SMF network element, UE/UPF and RAN network element.

As a possible implementation method, the system for guaranteeing resource transmission also comprises AF/NEF.

Drawings

Fig. 1 is a schematic diagram of a conventional resource transmission guarantee;

fig. 2 is a schematic diagram of a communication system according to an embodiment of the present application;

fig. 3 is a schematic diagram of a 5G network architecture according to an embodiment of the present application;

fig. 4 is a schematic flowchart of a resource transmission guaranteeing method provided in the present application;

fig. 5 is a schematic diagram of a resource transmission guaranteeing apparatus provided in the present application;

fig. 6 is a schematic diagram of another resource transmission securing apparatus provided in the present application;

fig. 7 is a schematic diagram of a terminal device provided in the present application.

Detailed Description

When the existing 5G network architecture carries out communication transmission, network resource guarantee is mainly provided through network slices, so that user plane network equipment can carry out resource guarantee according to configured network slices.

Before the terminal device uses the network slice to perform communication transmission, a corresponding relation between a Protocol Data Unit (PDU) session (session) and the network slice is defined in advance, so that when performing communication transmission, an applicable network slice is determined according to the PDU session to which a quality of service (QoS) Flow (Flow) belongs. For example, as shown in fig. 1, the network slice corresponding to PDU session1 is network slice 1, and the network slice corresponding to PDU session2 is network slice 2. That is, the PDU session1 can only perform communication transmission according to the attribute of the network slice 1, and the QoS Flow in the PDU session2 can only perform communication transmission according to the attribute of the network slice 2.

Therefore, the current resource transmission guarantee method cannot flexibly configure resource transmission according to QoS Flow, and cannot meet actual requirements.

In summary, the existing method for providing resource transmission guarantees through network slices is set based on the PDU session granularity, where one PDU session may include one or more QoS flows.

Different resource reservation guarantees or transmission channel isolation modes are provided based on PDU session granularity, and actual requirements cannot be met.

In order to solve the problem, embodiments of the present application provide a method, an apparatus, and a system for resource transmission guarantee, so as to provide different resource reservation guarantees or transmission channel isolation methods based on QoS stream granularity.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD), universal mobile telecommunications system (universal mobile telecommunications system, UMTS), Worldwide Interoperability for Microwave Access (WIMAX) communication systems, fifth generation (5G) or new NR systems, etc., or other similar communication systems applied to future communications.

For the convenience of understanding the embodiments of the present application, a communication system to which the embodiments of the present application are applied will be first described in detail by taking the communication system shown in fig. 2 as an example. As shown in fig. 2, the communication system includes a terminal device 200, a (radio access Network (R) AN) Network element 210, a Session Management Function (SMF) Network element 220, a User Plane Function (UPF) Network element 230, a Policy Control Function (PCF) Network element 240, and a Network open Function (NEF)/Application Function (AF) Network element 250.

Terminal equipment 200, which is a device that provides voice and/or data connectivity to a user, may also be referred to as User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, or a wearable device, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and the like. The terminal may be mobile or stationary.

In this embodiment, the terminal device may switch from the 4G communication system to the 5G communication system, or may also switch from the 5G communication system to the 4G communication system.

The terminal device may establish a connection with the carrier network through an interface (e.g., N1, etc.) provided by the carrier network, and use data and/or voice services provided by the carrier network. The terminal device may also access the DN via an operator network, use operator services deployed on the DN, and/or services provided by a third party. The third party may be a service party other than the operator network and the terminal device, and may provide services such as data and/or voice for the terminal device. The specific expression form of the third party may be determined according to an actual application scenario, and is not limited herein.

The RAN network element 210: the method and the device are used for providing a network access function for authorized terminal equipment in a specific area, and can use transmission tunnels with different qualities according to the grade of the terminal equipment, the service requirement and the like.

The RAN network element can manage wireless resources, provide access service for the terminal equipment and further complete forwarding of control signals and terminal equipment data between the terminal equipment and the core network. The RAN device in this application is a device that provides a wireless communication function for a terminal device, and is also referred to as an access network device. RAN equipment in this application includes, but is not limited to: next generation base station (G node B, gNB), evolved node B (eNB), Radio Network Controller (RNC), Node B (NB), Base Station Controller (BSC), Base Transceiver Station (BTS), home base station (e.g., home evolved node B, or home node B, HNB), Base Band Unit (BBU), transmission point (TRP), Transmission Point (TP), mobile switching center, etc. in 5G.

The SMF network element 220 is mainly used for PDU session management. And receiving the session and the traffic flow control strategy provided by the PCF and executing the strategy.

The UPF network element 230, a user plane function of the core network side, is mainly used as an interface with the data network, and is used for data stream forwarding, QoS control, charging statistics, and the like.

PCF network element 240, configured to generate a control policy according to the request information of the AF, the operator policy, the user subscription information, and the like, and control a network behavior; and issuing the control strategy to the control plane network element for strategy execution.

The NEF/AF Network element 250 is mainly configured to initiate a Network reservation request, and carry service description Information (e.g., IP quintuple, application IP, etc.) and requested Network resources (which may be identifiers negotiated by the AF and an operator in advance, such as Single Network Slice Selection Assistance Information (S-NSSAI)).

It should be noted that the "network element" may also be referred to as an entity, a device, an apparatus, a module, or the like, and the present application is not particularly limited. Also, in the present application, for convenience of understanding and explanation, a description of "network element" is omitted in some descriptions, for example, a RAN network element is abbreviated as RAN, in which case the "RAN network element" is understood as a RAN network element or a RAN entity, and explanation of the same or similar cases is omitted below.

The system shown in fig. 2 in this embodiment of the application may be used in the fifth generation (5th generation, 5G) network architecture shown in fig. 3, and certainly, may also be used in a future network architecture, such as a sixth generation (6th generation, 6G) network architecture, and the like, which is not limited in this application.

Briefly introduced below by taking a 5G network architecture as an example, as shown in fig. 3, the 5G network architecture may include three parts, namely, a terminal device part (i.e., UE), a Data Network (DN), and an operator network part. The operator network part relates to the following main network elements:

a Unified Data Management (UDM) network element, a Unified Data Repository (UDR) network element, a PCF, an AF, an SMF, a RAN, a UPF, an Access and Mobility Management Function (AMF) network element.

Further, in the 5G network architecture shown in fig. 3, the interface names and functions between the network elements are as follows:

(1) n7, refers to the interface between PCF and SMF, used for PDU session and traffic data flow control policy delivery.

(2) N15, refers to the interface between PCF and AMF, used for UE mobility and network selection control policy delivery.

(3) N5, which refers to an interface between the AF and the PCF, is used to issue an application service request (carrying the service requirements for QoS, such as bandwidth and resource preemption priority, etc.), and report a network event (such as the user radio access network type, 3G, 4G, etc.).

(4) N4, which refers to an interface between the SMF and the UPF, is used for transmitting information between the control plane and the user plane, and includes controlling the sending of forwarding rules, QoS control rules, traffic statistics rules, etc. for the user plane, and reporting information (such as application information, usage monitoring information, etc. detected by the user plane) of the user plane.

(5) N11 denotes an interface between the SMF and the AMF, and is used to transfer user plane tunnel information between the RAN and the UPF, control messages to the UE, radio resource control information to the RAN, and the like.

(6) N2 refers to an interface between the AMF and the RAN, and is used for transferring radio bearer control information from the core network side to the RAN.

(7) N1, refers to the interface between the AMF and the UE, access independent, for passing QoS control rules to the UE, etc.

It is to be understood that the above network elements or functions may be network elements in a hardware device, or may be software functions running on dedicated hardware, or virtualization functions instantiated on a platform (e.g., a cloud platform). Optionally, the network element or the function may be implemented by one device, or may be implemented by multiple devices together, or may be a functional module in one device, which is not specifically limited in this embodiment of the present application. Wherein, the network elements with the same or similar functions can be jointly arranged.

It should be understood that the network architecture applied to the present application is only an exemplary network architecture described in the service architecture, and the network architecture to which the embodiments of the present application are applied is not limited thereto, and any network architecture capable of implementing the functions of the network elements described above is applicable to the embodiments of the present application.

The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems. It should be understood that fig. 2 and 3 are simplified schematic diagrams only for convenience of understanding, and that other access network devices or other terminal devices may be included in the communication system, which are not shown in fig. 2 and 3.

In the following, some terms referred to in the embodiments of the present application are explained for convenience of understanding.

1) A Network Slice (Network Slice), which is a networking mode according to needs, can allow an operator to separate a plurality of virtual end-to-end networks on a unified infrastructure, and each Network Slice is logically isolated from a radio access Network bearer Network to a core Network so as to adapt to various types of applications. In one network slice, at least three parts of a wireless network sub-slice, a bearer network sub-slice and a core network sub-slice can be divided. Therein, network slicing is a logic-based concept, which is the reorganization of resources, which is the selection of required virtual machines and physical resources for a particular communication service type according to SLA (service level agreement).

2) Quality of Service (QoS) refers to a network that can provide better Service capability for specified network communication by using various basic technologies, and is a security mechanism of the network, which is a technology for solving the problems of network delay and congestion.

QoS guarantees are important for capacity-limited networks, especially for streaming multimedia applications such as VoIP and IPTV, which often require fixed transmission rates and are sensitive to delay.

In addition, the terms "system" and "network" in the embodiments of the present application may be used interchangeably. "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein, A and B can be singular or plural. The character "is a relationship generally indicating that the former and latter associated objects are an" or ". At least one of the following items or the like, refers to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

Unless stated to the contrary, the embodiments of the present application refer to the ordinal numbers "first", "second", etc., for distinguishing between a plurality of objects, and do not limit the sequence, timing, priority, or importance of the plurality of objects. Furthermore, the terms "comprising" and "having" in the description of the embodiments and claims of the present application and the drawings are not intended to be exclusive. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may include other steps or elements not listed.

The following describes a method for guaranteeing resource transmission according to an embodiment of the present application with reference to the accompanying drawings, where as shown in fig. 4, the method specifically includes the following steps:

s400, the PCF network element determines the resource transmission ID applicable to the first service flow according to the description information of the first service flow.

In an optional manner of the embodiment of the present application, the first service Flow is a first QoS Flow.

In this embodiment of the present application, the first service Flow may be a service Flow that is determined in advance and needs to perform resource transmission configuration based on QoS Flow granularity, and it can be understood that the first network element only needs to determine a resource transmission ID applicable to the first service Flow, and other service flows that do not need to perform resource transmission configuration based on QoS Flow granularity may continue to perform resource transmission configuration according to PDU session granularity.

The embodiment of the present application shows that there are various ways for transmitting the ID by the resource, and the method is not limited to the following:

expression mode 1: the resource transport ID is represented by S-NSSAI.

Expression mode 2: adding the resource transmission ID in an indication field in a network slice.

In the embodiment of the present application, there are various ways to add the resource transmission ID in the indication field in the network slice, and the method is not specifically limited to the following:

the first method is as follows: adding the resource transmission ID in an original indication field in a network slice.

In this embodiment of the present application, the indication field of the network slice in the representation mode 2 may be an original indication field, that is, the resource transmission ID is added to an original indication field of the network slice, so that after receiving the information carrying the resource transmission ID, other network elements or devices may determine the corresponding network slice according to the resource transmission ID.

The second method comprises the following steps: and adding an indication domain in the network slice, and indicating the resource transmission ID through the added indication domain.

In this embodiment of the present application, the indication field of the network slice in the representation mode 2 may be a newly added field dedicated to indicate the resource transmission ID, that is, a newly added field is equivalent to that a field is newly added in the network slice, and the newly added field is used to indicate the resource transmission ID, so that after receiving the information carrying the resource transmission ID, other network elements or devices may determine, according to the resource transmission ID, the corresponding my network slice.

Expression mode 3: the resource transmission ID is represented by a range of QFIs of the traffic flow.

In the embodiment of the present application, the QFI range of a service flow corresponds to a resource transmission ID, and for example, assuming that the correspondence between the QFI range of the service flow and the resource transmission ID is shown in table 1 below, the resource transmission ID corresponding to the service flow may be determined according to the QFI of the service flow.

Traffic flow QFI Range	Resource transfer ID
		QFI10～19	Resource transfer ID1
QFI20～29	Resource transfer ID2
		QFI30～39	Resource transfer ID3

Table 1 correspondence between service stream identification range and resource transmission ID

For example, assuming that the QFI of a service flow is 11, within a range of QFI 10-19, the resource transmission ID corresponding to the service flow with QFI of 11 is 1, and then in the resource configuration process, the corresponding network slice is determined according to the resource transmission ID.

Further, in an optional manner in this embodiment of the application, the network slice may be determined directly according to the QFI of the service flow, that is, the QFI range of the service flow directly corresponds to the network slice.

Further, in this embodiment of the present application, there are various situations for triggering the PCF network element to determine the transmission resource corresponding to the resource transmission ID applicable to the first service flow, and the situations are not specifically limited to the following:

triggering the first condition: and the PCF network element determines whether to trigger the provision of network resource reservation and/or guarantee and transmission isolation service for the first service according to the actual condition of the PCF network element.

Based on the first trigger condition, when the PCF network element determines that network resource reservation and/or guarantee and transmission isolation service needs to be provided for the first service, the PCF network element may determine the resource transmission ID applicable to the first service flow according to the correspondence between the description information of different service flows and the resource transmission IDs of different transmission resources and the description information of the first service flow.

Wherein, the corresponding relationship between the description information of different service flows and the resource transmission ID of different transmission resources can be stored in the PCF network element; or the corresponding relationship between the description information of the different service flows and the resource transmission IDs of the different transmission resources may be stored in a third-party platform that the PCF can access, and when the PCF needs to determine the resource transmission ID applicable to the first service flow based on the corresponding relationship between the description information of the different service flows and the resource transmission IDs of the different transmission resources, the PCF calls the corresponding relationship between the description information of the different service flows and the resource transmission IDs of the different transmission resources from the third-party platform.

Exemplarily, a corresponding relationship between the description information of different service flows and the resource transmission IDs of different transmission resources is configured in advance in the PCF network element, where the corresponding relationship between the description information of different service flows and the resource transmission IDs of different transmission resources may be manually configured in advance to the PCF network element; or, the corresponding relationship between the description information of the different service flows and the resource transmission IDs of the different transmission resources is obtained by the PCF network element from another network element.

Therefore, when the PCF network element determines that network resource reservation and/or guarantee and transmission isolation service needs to be provided for the first service flow, the PCF network element may determine the resource transmission ID applicable to the first service flow according to the correspondence between the description information of the different service flows and the resource transmission IDs of the different transmission resources.

In addition, in an optional case in this embodiment of the application, the PCF network element determines, according to an actual situation, a network slice configured for the first service flow, then determines, according to a correspondence between the network slice and a resource transmission ID, a resource transmission ID corresponding to the network slice, and determines the resource transmission ID as the resource transmission ID applicable to the first service flow.

And triggering a second condition: and the first network element triggers to provide network resource reservation and/or guarantee and transmission isolation services for the first service flow according to a first request sent by the SMF network element.

Wherein, the first request is used for the SMF network element to apply to the PCF network element for the resource transmission ID as the resource transmission ID applicable to the first service flow.

Further, based on the second triggering condition, there are multiple ways for the PCF network element to determine the resource transmission ID applicable to the first service flow, and the method is not specifically limited to the following ways:

determination method 1: the PCF network element may determine the resource transmission ID applicable to the first service flow according to its own actual situation.

For details, refer to the description of the first triggering condition, which is not described herein again.

Determination mode 2: if the first request includes the resource transmission ID and the description information of the first service flow, the first network element directly determines the resource transmission ID included in the first request as the resource transmission ID applicable to the first service flow.

Optionally, in this embodiment of the present application, the service description information of the first service flow may be an IP quintuple, an application IP, and the like.

For example, it is assumed that the first request includes service description information of a service flow 1 and a service flow 2 and a resource transmission ID-a corresponding to the service flow 1, and a resource transmission ID-B corresponding to the service flow 2.

Therefore, after receiving the first request sent by the SMF network element, the PCF network element may determine, according to the information included in the first request, that the resource transmission ID configured for service flow 1 is resource transmission ID-a, and that the resource transmission ID configured for service flow 2 is resource transmission ID-B.

That is to say, in this embodiment of the present application, it can be understood that, in the process of performing communication transmission, a corresponding relationship is established between the first service flow and the resource transmission ID.

Further, in an optional manner in this embodiment of the application, the first request is determined by the SMF network element according to a second request sent by a terminal device.

And the second request is used for the terminal equipment to apply the resource transmission ID to the PCF network element through the SMF network element as the resource transmission ID applicable to the first service flow.

Preferably, the second request includes the resource transmission ID and description information of the first service flow.

Optionally, the second request is a PDU session modification request.

Triggering condition three: and the PCF network element determines to trigger to provide network resource reservation and/or guarantee and transmission isolation service for the first service flow according to a third request sent by external equipment such as NEF/AF and the like.

Wherein, the third request is used for the NEF or AF network element to apply to the PCF network element for the resource transmission ID as the resource transmission ID applicable to the first service flow.

Further, under the triggering condition three, there are various ways for the PCF network element to determine the resource transmission ID applicable to the first service flow, and the method is not specifically limited to the following:

Determination mode 2: if the third request includes the resource transmission ID and the description information of the first service flow, the first network element directly determines the resource transmission ID included in the third request as the resource transmission ID applicable to the first service flow.

Optionally, in this embodiment of the present application, the service description information of the first service flow may be an IP quintuple, an application IP, a network bandwidth resource that needs to be configured, and the like. Wherein, the network bandwidth resource to be configured may be negotiated by the NEF/AF and the operator in advance.

For example, it is assumed that the third request includes service description information of a service flow 1 and a service flow 2 and a resource transmission ID-a corresponding to the service flow 1, and a resource transmission ID-B corresponding to the service flow 2.

Therefore, after receiving the third request sent by the SMF network element, the PCF network element may determine, according to the information included in the third request, that the resource transmission ID applicable to the service flow 1 is resource transmission ID-a, and that the resource transmission ID applicable to the service flow 2 is resource transmission ID-B.

Further, if the PCF network element determines to trigger to provide network resource reservation and/or guarantee and transmission isolation service for the first service flow based on the third trigger condition, S400 shown in fig. 4 in this embodiment of the application further includes the following steps before:

s400a, the NEF/AF initiates a third request to the PCF network element, where the third request is used for the NEF or AF network element to apply the resource transmission ID to the PCF network element as the resource transmission ID applicable to the first service flow.

S400b, the PCF network element receiving the third request.

And the PCF network element triggers to provide network resource reservation and/or guarantee and transmission isolation service for the first service flow according to the third request.

In addition, when the third request carries the resource transmission ID of the first service flow, after determining to provide network resource reservation and/or guarantee and transmission isolation service for the first service flow, the resource transmission ID applicable to the first service flow is determined directly according to the third request.

S401, the PCF network element generates a first message according to the description information of the first service flow and the resource transmission ID applicable to the first service flow.

The first message generated by the PCF network element in the embodiment of the present application has multiple expressions, which are not limited to the following specific expressions.

Expression form 1: the first message is description information of the first service flow with the function of representing the resource transmission ID.

In an optional manner of this embodiment of the present application, the first message generated by the PCF network element includes description information of the first service flow, a new field is extended in a description field corresponding to the description information of the first service flow, and the new field carries the resource transmission ID.

In another optional manner of this embodiment of the present application, the first message generated by the PCF network element includes description information of the first service flow, and an idle field in a description field corresponding to the description information of the first service flow carries the resource transmission ID.

Illustratively, as shown in table 2, the first message is constructed as follows:

table 2 first message construction case 1

Expression form 2: the first message is the resource transmission ID and the description information of the first service flow.

In an optional manner of this embodiment of the present application, the description field in the first message generated by the PCF network element carries description information of the first service flow, and the idle field in the description field of the first message carries the resource transmission ID.

In another optional manner of this embodiment of the present application, a description field in the first message generated by the PCF network element carries description information of the first service flow, a new field is extended in the description field of the first message, and the new field carries the resource transmission ID.

Illustratively, as shown in table 3, the first message is constructed as follows:

table 3 first message construction case 2

Expression form 3: the first message is a PCC rule indicating that the description information of the first service flow has a correspondence relationship with a resource transmission ID.

That is, the first message may be implemented by adding a resource transmission ID to an existing PCC rule.

Illustratively, as shown in table 4, the first message is constructed as follows:

table 4 first message construction case 1

Expression form 4: the first message is obtained by combining two kinds of information, such as a PCC rule and the resource transmission ID.

That is, the PCC rule and the resource transmission ID are carried in a description field in the first message.

Illustratively, as shown in table 5, the first message is constructed as follows:

table 5 first message construction case 2

Further, when the first service flow is multiple, the first message may include a resource transmission ID corresponding to at least one service flow.

If the description information of the service flow does not have the associated resource transmission ID in the first message, the service flow is configured according to the existing resource transmission configuration by default, that is, according to the network slice corresponding to the PDU session in which the service flow is located.

Through the above, the embodiment of the application provides a plurality of first message construction modes, different construction modes can be selected according to actual conditions to set the first message, and the applicability is stronger.

S402, the PCF network element sends the first message to a Session Management Function (SMF) network element.

In an optional manner in this embodiment of the application, the first message is sent to the SMF through an Npcf _ SMPolicyControl _ UpdateNotify message.

S403, after receiving the first message from the PCF network element, the SMF network element sends a first response message to the PCF network element.

Further, if before performing the above S400, S400a and S400b are also performed, in an optional manner in this embodiment of the application, after receiving the first response message sent by the SMF network element, the PCF network element further performs the following steps:

s403 a: and the PCF network element sends a first response message based on the third request to a NEF/AF, wherein the first response message is used for indicating whether the SMF network element successfully receives the first message.

In an optional manner of this embodiment of the application, the response message may be represented by a binary number of 0 or 1, for example, it is assumed that 0 indicates that the SMF network element does not successfully receive the first message, and 1 indicates that the SMF network element successfully receives the first message. Therefore, after receiving the first message, the SMF network element generates a response message, where the response message includes 1, and sends the response message to the PCF network element, so that the PCF network element feeds back the response message to the NEF/AF.

S404, the SMF network element configures, according to the received first message, a transmission resource corresponding to the resource transmission ID for the first service flow.

That is to say, the SMF network element performs binding between the QoS Flow and the resource transfer ID according to the received first message, that is, determines a reservation method of the service aggregate bandwidth resource with the QoS Flow as a granularity, so that resource transfer configuration can be flexibly performed according to the QoS Flow, bandwidth reservation can be performed more finely, and a network slice configured by the QoS Flow is more attached to the QoS Flow, thereby effectively meeting the requirement of actual transfer.

Specifically, the SMF network element determines whether a new QoS Flow needs to be created or whether an original QoS Flow needs to be modified according to the first message.

And if the SMF network element determines that a new QoS Flow needs to be created according to the first message, the SMF network element creates a new QoS Flow according to the first message and obtains a PDR of the newly created QoS Flow, wherein the PDR of the newly created QoS Flow comprises a resource transmission ID applicable to the first service Flow.

If the SMF network element determines that the QoS Flow needs to be modified according to the first message, that is, the QoS Flow and the corresponding PDR already exist in the SMF network element, the SMF network element updates the PDR of the QoS Flow according to the first message, where the PDR of the modified QoS Flow includes a resource transmission ID applicable to the first service Flow.

Further, in this embodiment of the present application, the PDR further includes tunnel indication information, where the tunnel indication information is used to indicate whether to allocate user plane transmission tunnel information for the first service flow.

Therefore, when the tunnel indication information indicates that the user plane transmission tunnel information is allocated to the specific service flow, the UPF receiving the PDR performs tunnel allocation to the first service flow according to the tunnel indication information, and carries the tunnel information allocated to the first service flow in a second response message sent to the SMF network element.

S405, the SMF network element generates a second message according to the first message.

The second message is used for indicating that the first service flow is applicable to the transmission resource corresponding to the resource transmission ID.

The second message generated by the SMF network element in the embodiment of the present application has multiple expressions, and is not limited to the following specific examples.

Expression form 1: the second message includes the first message.

In an optional manner of this embodiment of the present application, after receiving the first message, the second network element directly uses the first message as the second message.

In another optional manner of the embodiment of the present application, the second message generated by the second network element includes the first message and other information.

Specifically, the description field in the second message carries the first message and other information.

Expression form 2: the second message contains the first traffic flow QFI with the function of representing the resource transmission ID.

And the QFI of the first service flow is generated by the SMF network element according to the description information of the first service flow. For example, the QFI of the first traffic flow is generated by the SMF network element according to the description information of the first traffic flow in the received first message.

In an optional manner of this embodiment of the present application, a description field in the second message carries a qos flow identifier QFI of the first service flow, a new field is extended in the description field corresponding to the description information of the first service flow, and the new field carries the resource transmission ID.

In another optional manner of this embodiment of the present application, a quality of service flow identifier QFI of the first service flow is carried in a description field in the second message, and an idle field in the description field corresponding to the description information of the first service flow carries the resource transmission ID.

Illustratively, after receiving the first message, the SMF network element generates the QFI of the first service flow according to the service description information of the first service flow, then binds the QFI of the first service flow with the resource transmission ID, generates the QFI of the first service flow with the function of representing the resource transmission ID, and takes the obtained QFI of the first service flow as the second message.

Expression form 3: the second message includes the QFI of the first traffic flow and the resource transmission ID.

In an optional manner of this embodiment of the present application, a QFI of the first service flow is carried in a description field in the second message, and the resource transmission ID is carried by an idle field in the description field of the second message.

In another optional manner of the embodiment of the present application, a QFI of the first service flow is carried in a description field in the second message, a new field is extended in the description field of the second message, and the resource transmission ID is carried in the new field.

Illustratively, after receiving the first message, the SMF network element obtains the description information of the first service flow from the first message, then generates the QFI of the first service flow according to the description information of the first service flow, and then uses the QFI of the first service flow and the resource transmission ID together as the second message.

That is, the second message stores the corresponding relationship between the QFI of the first service flow and the resource transmission ID.

Expression form 4: and the second message is a flow configuration file QoS Profile generated according to the PCC rule.

That is, the second message may be implemented by adding a resource transmission ID to an existing QoS Profile.

Illustratively, a new field is extended in the description field of the QoS Profile, and the new field is used to carry the resource transmission ID; or using an idle field in the description field of the QoS Profile to carry the resource transmission ID.

Expression form 5: the second message is obtained by combining two kinds of information, such as QoS Profile and the resource transmission ID.

That is, the QoS Profile rule and the resource transmission ID are carried in a description field in the second message.

Through the above, the embodiment of the application provides a plurality of second message construction modes, different construction modes can be selected according to actual conditions to set the second message, and the applicability is stronger.

S406, the SMF network element sends the second message to a radio access network RAN.

In addition, in this embodiment of the application, in S406, the SMF network element may further send the second message to the UE.

S407, the RAN receives the second message sent by the SMF network element.

In this embodiment of the present application, if the SMF network element sends the second message to the UE, the UE receives the second message sent by the SMF network element.

S408, the RAN performs resource transmission reservation or resource transmission guarantee for the first service flow according to the second message.

The RAN may also reserve resources for all first traffic flows with the same resource transmission ID as a whole.

Further, the second message further includes user plane transmission tunnel information allocated to the service flow, so that the RAN allocates a user plane transmission tunnel to the corresponding service flow according to the second message.

And S409, the SMF network element generates a third message according to the first message.

Wherein the third message is used to indicate that the first service flow applies the transmission resource corresponding to the resource transmission ID.

The third message generated by the SMF network element in the embodiment of the present application has multiple expressions, and is not limited to the following specific examples.

Expression form 1: the third message comprises the first message.

In an optional manner of this embodiment of the present application, after receiving the first message, the second network element directly uses the first message as the third message.

In another optional manner of the embodiment of the present application, the third message generated by the second network element includes the first message and other information.

Specifically, the description field in the third message carries the first message and other information.

Expression form 2: the third message contains a QFI of the first traffic flow with the function of representing the resource transport ID.

And the QFI of the first service flow is generated by the SMF network element according to the description information of the first service flow.

For example, the QFI of the first traffic flow is generated by the SMF network element according to the description information of the first traffic flow in the received first message.

In an optional manner of this embodiment of the present application, a description field in the third message carries a qos flow identifier QFI of the first service flow, a new field is extended in the description field corresponding to the description information of the first service flow, and the new field carries the resource transmission ID.

In another optional manner of this embodiment of the present application, a quality of service flow identifier QFI of the first service flow is carried in a description field in the third message, and an idle field in the description field corresponding to the description information of the first service flow carries the resource transmission ID.

Illustratively, after receiving the first message, the SMF network element generates the QFI of the first service flow according to the service description information of the first service flow, then binds the QFI of the first service flow with the resource transmission ID, generates the QFI of the first service flow with the function of representing the resource transmission ID, and takes the obtained QFI of the first service flow as the third message.

Expression form 3: the third message includes the QFI of the first traffic flow and the resource transmission ID.

In an optional manner of this embodiment of the present application, a QFI of the first service flow is carried in a description field in the third message, and the resource transmission ID is carried by an idle field in the description field of the third message.

In another optional manner of the embodiment of the present application, a QFI of the first service flow is carried in a description field in the third message, a new field is extended in the description field of the third message, and the resource transmission ID is carried in the new field.

Illustratively, after receiving the first message, the SMF network element obtains the description information of the first service flow from the first message, then generates the QFI of the first service flow according to the description information of the first service flow, and then uses the QFI of the first service flow and the resource transmission ID together as the third message.

That is, the third message stores the corresponding relationship between the QFI of the first service flow and the resource transmission ID.

Expression form 4: the third message is a packet detection rule PDR generated according to the PCC rule.

That is, the third message may be implemented by adding a resource transmission ID to the existing PDR.

Specifically, a new field is extended in the description field of the PDR, and the new field is used to carry the resource transmission ID; or using an idle field in the description field of the PDR to carry the resource transmission ID.

Illustratively, as shown in table 6, the third message is constructed as follows:

TABLE 6 third message construction case 1

Expression form 5: the third message is obtained by combining two kinds of information, such as a PDR (product data Rate) and the resource transmission ID.

That is, the PDR is carried in a description field in the third message, along with the resource transfer ID.

Illustratively, as shown in table 7, the third message is constructed as follows:

TABLE 7 third message construction case 2

Expression form 6: the third message is obtained by combining information such as a PDR and a QFI containing a resource transmission ID.

Illustratively, as shown in table 8, the third message is constructed as follows:

TABLE 8 third message construction case 3

Through the above, the embodiment of the application provides a plurality of third message construction modes, different construction modes can be selected according to actual conditions to set the third message, and the applicability is stronger.

And S410, the SMF network element sends the third message to a User Plane Function (UPF).

S411, the UPF receives the third message sent by the SMF network element.

S412, the UPF configures the transmission resource corresponding to the resource transmission ID for the first service flow according to the third message.

Further, the third message further includes tunnel indication information, where the tunnel indication information is used to indicate whether to allocate user plane transmission tunnel information for the specific service flow, and when the tunnel indication information indicates that the user plane transmission tunnel information is allocated for the specific service flow, the UPF performs tunnel allocation for the specific service flow according to the tunnel indication information, and carries the tunnel information allocated for the specific service flow in a response message sent to the second network element.

It should be noted that the sequence of the steps described in fig. 4 is not limited in the embodiment of the present application, and the steps described in fig. 4 may be adjusted according to actual situations in the embodiment of the present application, for example, the step S403 is omitted.

By the method, the embodiment of the application provides that the QoS Flow is used as the granularity to configure the transmission resource for the first service Flow, that is, the first service Flow directly corresponds to the resource transmission ID, that is, different service flows in the same PDU session can configure different transmission resources according to the actual situation, and the transmission resource corresponding to the PDU session does not need to be fixedly configured according to the PDU session in which the service Flow is located. Therefore, transmission resources can be flexibly configured for the service flow based on the actual condition of the service flow, the transmission resources configured for the service flow are more attached to the service flow, the actual transmission requirement of the service flow is better met, and the adaptability is higher.

Based on the above embodiments, as shown in fig. 5, the present application provides a network element, which includes a processor 500, a memory 501, and a communication interface 502.

The processor 500 is responsible for managing the bus architecture and general processing, and the memory 501 may store data used by the processor 500 in performing operations. The transceiver communication interface 502 is used to receive and transmit data in data communication with the memory 501 under the control of the processor 500.

The processor 500 may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of a CPU and an NP. The processor 500 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof. The memory 501 may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The processor 500, the memory 501 and the communication interface 502 are connected to each other. Optionally, the processor 500, the memory 501 and the communication interface 502 may be connected to each other through a bus 503; the bus 503 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 5, but this is not intended to represent only one bus or type of bus.

Specifically, the processor 500 is configured to read a program in the memory 501 and execute the content of the first network element in S400 to S412 shown in fig. 4; or executing the contents of the second network element in S400-S412 shown in fig. 4; or UPF/UE content in S400-S412 as shown in FIG. 4; or the contents of the RAN as shown in S400-S412 of fig. 4.

As shown in fig. 6, the present invention provides a resource transmission securing apparatus, including: at least one processing unit 600, at least one memory unit 601 and at least one communication unit 602, wherein the communication unit 602 is configured to receive and transmit data under the control of the processing unit 600, and the memory unit 601 stores program codes.

Wherein, when the resource transmission guaranteeing apparatus is a PCF network element, when the program code is executed by the processing unit 600, the processing unit 600 and the communication unit 602 are caused to execute the following processes:

a processing unit 600, configured to determine, according to description information of a first service flow, a resource transmission ID applicable to the first service flow; generating a first message, where the first message is used to indicate that the first service flow is applicable to a transmission resource corresponding to the resource transmission ID;

a communication unit 602, configured to send the first message to a session management function SMF network element, and instruct the SMF network element to configure a transmission resource corresponding to the resource transmission ID for the first service flow according to the first message.

As a possible implementation method, before the communication unit 602 determines, according to the description information of the first service flow, a resource transmission ID applicable to the first service flow, the communication unit is further configured to:

and receiving a first request sent by the SMF network element, wherein the first request is used for the SMF network element to apply the resource transmission ID to the PCF network element as the resource transmission ID applicable to the first service flow.

As a possible implementation method, the processing unit 600 is specifically configured to:

and determining the resource transmission ID applicable to the first service flow according to the corresponding relation between the description information of different service flows and the resource transmission ID of different transmission resources and the description information of the first service flow.

and receiving a third request sent by a network open function (NEF) network element or an Application Function (AF) network element, wherein the third request is used for the NEF or AF network element to apply the resource transmission ID to the PCF network element as the resource transmission ID applicable to the first service flow.

As a possible implementation method, after the communication unit 602 sends the first message to the SMF network element, the communication unit is further configured to:

and receiving a response message fed back by the SMF network element, wherein the response message is used for indicating whether the SMF network element successfully receives the first message.

As a possible implementation method, the communication unit 602 is further configured to:

sending the response message to the AF or the NEF.

As a possible implementation method, the communication unit 602 sends the first message to the SMF network element through an Npcf _ SMPolicyControl _ UpdateNotify message.

Wherein, when the resource transmission securing apparatus is an SMF network element, when the program code is executed by the processing unit 600, the processing unit 600 and the communication unit 602 are caused to execute the following processes:

a communication unit 602, configured to receive a first message from a policy control function PCF network element, where the first message is used to indicate a resource transmission ID applicable to a first service flow;

a processing unit 600, configured to configure a transmission resource corresponding to the resource transmission ID for the first service flow according to the first message.

generating a second message according to the first message, wherein the second message is used for indicating that the first service flow is applicable to the transmission resource corresponding to the resource transmission ID;

the communication unit 602 is specifically configured to:

and sending the second message to a Radio Access Network (RAN) and indicating the RAN to configure transmission resources corresponding to the resource transmission ID for the first service flow according to the second message.

generating a third message according to the first message, wherein the third message is used for indicating that the first service flow is applicable to the transmission resource corresponding to the resource transmission ID;

the communication unit 602 is specifically configured to:

and sending the third message to a User Plane Function (UPF), and indicating the UPF to configure a transmission resource corresponding to the resource transmission ID for the first service flow according to the third message.

As a possible implementation method, before the communication unit receives the first message from the PCF network element, the communication unit is further configured to:

and sending a first request to the PCF network element, wherein the first request is used for the SMF network element to apply the resource transmission ID to the PCF network element as the resource transmission ID applicable to the first service flow.

In a possible implementation method, the second message further includes user plane transmission tunnel information allocated to the specific service flow.

As a possible implementation method, the first message is further used to instruct the second network element to perform service isolation.

As a possible implementation method, a description field in the first message carries description information of the first service flow, and an idle field in the description field carries the resource transmission ID; or the description information of the first service flow is carried in the description field in the first message, a new field is expanded in the description field, and the resource transmission ID is carried in the new field; or the first message is a policy control and charging PCC rule indicating that the description information of the first service flow has a corresponding relationship with a resource transmission ID.

Wherein when the resource transmission securing device is a UPF, the program code, when executed by the processing unit 600, causes the processing unit 600 and the communication unit 602 to perform the following:

a communication unit 602, configured to receive a third message sent by a session management function SMF network element, where the third message is used to indicate that the first service flow is applicable to a transmission resource corresponding to the resource transmission ID;

a processing unit 600, configured to configure a transmission resource corresponding to the resource transmission ID for the first service flow according to the third message.

Wherein, when the resource transmission securing apparatus is a RAN, the program code, when executed by the processing unit 600, causes the processing unit 600 and the communication unit 602 to perform the following processes:

a communication unit 602, configured to receive a second message sent from a second network element, where the second message is used to indicate that the first service flow applies the transmission resource corresponding to the resource transmission ID;

a processing unit 600, configured to configure a transmission resource corresponding to the resource transmission ID for the first service flow according to the second message.

As shown in fig. 7, an embodiment of the present invention provides a terminal for guaranteeing resource transmission, where the terminal 700 includes: a Radio Frequency (RF) circuit 710, a power supply 720, a processor 730, a memory 740, an input unit 750, a display unit 760, a camera 770, a communication interface 780, and a Wireless Fidelity (WiFi) module 780. Those skilled in the art will appreciate that the configuration of the terminal shown in fig. 7 is not intended to be limiting, and that the terminal provided by the embodiments of the present application may include more or less components than those shown, or some components may be combined, or a different arrangement of components may be provided.

The following describes the various components of the terminal 700 in detail with reference to fig. 7:

the RF circuit 710 may be used for receiving and transmitting data during a communication or conversation. Specifically, the RF circuit 710 sends the downlink data of the base station to the processor 730 for processing after receiving the downlink data; and in addition, sending the uplink data to be sent to the base station. Generally, the RF circuit 710 includes, but is not limited to, an antenna, at least one Amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like.

In addition, the RF circuit 710 may also communicate with a network and other terminals through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), and the like.

The WiFi technology belongs to a short-distance wireless transmission technology, and the terminal 700 can Access an Access Point (AP) through a WiFi module 780, so as to Access a data network. The WiFi module 780 may be used for receiving and transmitting data during communication.

The terminal 700 may be physically connected to other terminals through the communication interface 780. Optionally, the communication interface 780 is connected to the communication interfaces of the other terminals through a cable, so as to implement data transmission between the terminal 700 and the other terminals.

The terminal 700 can implement a communication service and send information to other contacts, so the terminal 700 needs to have a data transmission function, that is, the terminal 700 needs to include a communication module inside. Although fig. 7 shows communication modules such as the RF circuit 710, the WiFi module 780, and the communication interface 780, it is understood that at least one of the above components or other communication modules (e.g., bluetooth module) for implementing communication exists in the terminal 700 for data transmission.

For example, when the terminal 700 is a mobile phone, the terminal 700 may include the RF circuit 710 and may further include the WiFi module 780; when the terminal 700 is a computer, the terminal 700 may include the communication interface 780 and may further include the WiFi module 780; when the terminal 700 is a tablet computer, the terminal 700 may include the WiFi module.

The memory 740 may be used to store software programs and modules. The processor 730 executes various functional applications and data processing of the terminal 700 by executing software programs and modules stored in the memory 740.

Alternatively, the memory 740 may mainly include a program storage area and a data storage area. The storage program area can store an operating system, various application programs (such as communication application), a face recognition module and the like; the storage data area may store data (such as various multimedia files like pictures, video files, etc., and face information templates) created according to the use of the terminal, etc.

In addition, the memory 740 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 750 may be used to receive numeric or character information input by a user and generate key signal inputs related to user settings and function control of the terminal 700.

Alternatively, the input unit 750 may include a touch panel 751 and other input terminals 752.

The touch panel 751, also referred to as a touch screen, can collect touch operations of a user (such as a user's operation of a finger, a stylus, or any other suitable object or accessory on or near the touch panel 751) and drive a corresponding connection device according to a preset program. Alternatively, the touch panel 751 may include two portions, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 730, and can receive and execute commands sent by the processor 730. In addition, the touch panel 751 may be implemented in various types, such as resistive, capacitive, infrared, and surface acoustic wave.

Optionally, the other input terminals 752 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.

The display unit 760 may be used to display information input by a user or information provided to the user and various menus of the terminal 700. The display unit 760 is a display system of the terminal 700, and is configured to present an interface to implement human-computer interaction.

The display unit 760 may include a display panel 761. Alternatively, the Display panel 761 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

Further, the touch panel 751 can cover the display panel 761, and when the touch panel 751 detects a touch operation thereon or nearby, the touch panel is transmitted to the processor 730 to determine the type of the touch event, and then the processor 730 provides a corresponding visual output on the display panel 761 according to the type of the touch event.

Although in fig. 7, the touch panel 751 and the display panel 761 are implemented as two separate components to implement the input and output functions of the terminal 700, in some embodiments, the touch panel 751 and the display panel 761 can be integrated to implement the input and output functions of the terminal 700.

The processor 730 is a control center of the terminal 700, connects various components using various interfaces and lines, performs various functions of the terminal 700 and processes data by operating or executing software programs and/or modules stored in the memory 740 and calling data stored in the memory 740, thereby implementing various services based on the terminal.

The camera 770 is used for implementing a shooting function of the terminal 700 and shooting pictures or videos. The camera 770 may also be used to implement a scanning function of the terminal 700, and scan a scanned object (two-dimensional code/barcode).

The terminal 700 also includes a power supply 720, such as a battery, for powering the various components. Optionally, the power supply 720 may be logically connected to the processor 730 through a power management system, so as to implement functions of managing charging, discharging, power consumption, and the like through the power management system.

Although not shown, the terminal 700 may further include at least one sensor, an audio circuit, and the like, which will not be described herein.

Wherein the memory 740 may store the same program code as the storage unit 701, which when executed by the processor 730, causes the processor 730 to implement all functions of the processing unit 700.

In some possible embodiments, aspects of a resource transmission securing method provided by the embodiments of the present invention may also be implemented in the form of a program product including program code for causing a computer device to perform the steps in the resource transmission securing method according to various exemplary embodiments of the present invention described in this specification when the program code runs on the computer device.

The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

A program product for executing a resource transmission safeguard according to an embodiment of the present invention may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be executed on a server device. However, the program product of the present invention is not limited thereto, and in this document, the readable storage medium may be any tangible medium containing or storing a program, which can be used by or in connection with a resource transmission securing apparatus or device.

A readable signal medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium other than a readable storage medium that can transmit, propagate, or transport the program for use by or in connection with the periodic network action system, apparatus, or device.

Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device.

The embodiment of the application also provides a storage medium readable by the computing equipment aiming at the method for ensuring the network equipment to execute the resource transmission, namely, the content is not lost after the power failure. The storage medium stores therein a software program comprising program code which, when executed on a computing device, when read and executed by one or more processors, implements any of the above resource transfer assurance methods of the embodiments of the present application.

The present application is described above with reference to block diagrams and/or flowchart illustrations of methods, apparatus (systems) and/or computer program products according to embodiments of the application. It will be understood that one block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, and/or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer and/or other programmable data processing apparatus, create means for implementing the functions/acts specified in the block diagrams and/or flowchart block or blocks.

Accordingly, the subject application may also be embodied in hardware and/or in software (including firmware, resident software, micro-code, etc.). Furthermore, the present application may take the form of a computer program product on a computer-usable or computer-readable storage medium having computer-usable or computer-readable program code embodied in the medium for use by or in connection with an instruction execution system. In the context of this application, a computer-usable or computer-readable medium may be any medium that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.

Although the present application has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary of the present application as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include such modifications and variations.

Claims

1. A resource transmission guaranteeing method is characterized by comprising the following steps:

a policy control function PCF network element determines a resource transmission ID applicable to a first service flow according to description information of the first service flow;

the PCF network element generates a first message, wherein the first message is used for indicating that the first service flow is applicable to the transmission resource corresponding to the resource transmission ID;

and the PCF network element sends the first message to a Session Management Function (SMF) network element and indicates the SMF network element to configure transmission resources corresponding to the resource transmission ID for the first service flow according to the first message.

2. The method of claim 1, wherein before the PCF network element determines the resource transmission ID applicable to the first traffic flow according to the description information of the first traffic flow, further comprising:

and the PCF network element receives a first request sent by the SMF network element, wherein the first request is used for the SMF network element to apply the resource transmission ID to the PCF network element as a resource transmission ID applicable to the first service flow.

3. The method of claim 1, wherein the PCF network element determining the resource transmission ID applicable to the first traffic flow based on the description information of the first traffic flow comprises:

and the PCF network element determines the resource transmission ID applicable to the first service flow according to the corresponding relation between the description information of different service flows and the resource transmission IDs of different transmission resources and the description information of the first service flow.

4. The method of claim 1, wherein the PCF network element determining the resource transmission ID applicable to the first traffic flow based on the description information of the first traffic flow comprises:

and the PCF network element receives a third request sent by a network open function (NEF) network element or an Application Function (AF) network element, wherein the third request is used for the NEF or AF network element to apply the resource transmission ID to the PCF network element as the resource transmission ID applicable to the first service flow.

5. The method of any of claims 1 to 4, wherein the PCF network element generating a first message comprises:

the description field in the first message generated by the PCF network element carries description information of the first service flow, and the idle field in the description field carries the resource transmission ID; or

The description field in the first message generated by the PCF network element carries the description information of the first service flow, and a new field is extended in the description field and carries the resource transmission ID in the new field; or

The first message generated by the PCF network element is a policy control and charging PCC rule indicating that the description information of the first service flow has a correspondence with a resource transmission ID.

6. The method of any of claims 1 to 5, wherein different resource transmission IDs are used to indicate different network slices.

7. A resource transmission guaranteeing method is characterized by comprising the following steps:

a Session Management Function (SMF) network element receives a first message from a Policy Control Function (PCF) network element, wherein the first message is used for indicating a resource transmission ID applicable to a first service flow;

and the SMF network element configures transmission resources corresponding to the resource transmission ID for the first service flow according to the first message.

8. The method of claim 7, wherein the configuring, by the SMF network element, the transmission resource corresponding to the resource transmission ID for the first traffic flow according to the first message comprises:

the SMF network element generates a second message according to the first message, wherein the second message is used for indicating that the first service flow is applicable to the transmission resource corresponding to the resource transmission ID;

and the SMF network element sends the second message to a Radio Access Network (RAN) and indicates the RAN to configure transmission resources corresponding to the resource transmission ID for the first service flow according to the second message.

9. The method of claim 8, wherein the SMF network element generating a second message from the first message comprises:

a quality of service flow identifier QFI of the first service flow is borne in a description field in the second message generated by the SMF network element, an idle field in the description field bears the resource transmission ID, and the QFI of the first service flow is generated by the SMF network element according to description information of the first service flow in the first message; or

The QFI of the first service flow is carried in a description field in the second message generated by the SMF network element, a new field is extended in the description field, and the resource transmission ID is carried in the new field; or

The second message generated by the SMF network element is a stream configuration file QoS Profile indicating that the description information of the first service stream and the resource transmission ID have a corresponding relationship.

10. The method of claim 7, wherein the configuring, by the SMF network element, the transmission resource corresponding to the resource transmission ID for the first traffic flow according to the first message comprises:

the SMF network element generates a third message according to the first message, wherein the third message is used for indicating that the first service flow is applicable to the transmission resource corresponding to the resource transmission ID;

and the SMF network element sends the third message to a User Plane Function (UPF), and indicates the UPF to configure a transmission resource corresponding to the resource transmission ID for the first service flow according to the third message.

11. The method of claim 10, wherein the SMF network element generating a third message from the first message comprises:

a quality of service flow identifier QFI of the first service flow is borne in a description field in the third message generated by the SMF network element, an idle field in the description field bears the resource transmission ID, and the QFI of the first service flow is generated by the SMF network element according to description information of the first service flow in the first message; or

The QFI of the first service flow is carried in a description field in the third message generated by the SMF network element, a new field is extended in the description field, and the resource transmission ID is carried in the new field; or

The third message generated by the SMF network element is a packet detection rule PDR indicating that the description information of the first service flow and the resource transmission ID have a correspondence relationship.

12. The method of any of claims 7 to 11, wherein prior to the SMF network element receiving the first message from the PCF network element, further comprising:

and the SMF network element sends a first request to the PCF network element, wherein the first request is used for the SMF network element to apply for the resource transmission ID to the PCF network element as the resource transmission ID applicable to the first service flow.

13. The method of claim 12, wherein the first request is determined by the SMF network element according to a second request sent by a terminal device, and the second request is used for the terminal device to apply for the resource transmission ID as the resource transmission ID applicable to the first service flow from the PCF network element through the SMF network element.

14. The method of any of claims 7 to 13, wherein different resource transmission IDs are used to indicate different network slices.

15. A resource transmission securing apparatus, comprising: one or more processing units; a storage unit; a communication unit;

the storage unit is used for storing one or more programs and data information;

the communication unit is used for the device to perform information interaction with other equipment;

the processing unit is used for calling at least one or more programs in the memory and executing the method of any one of claims 1-6; or performing the method of any one of claims 7 to 14.

16. A computer-readable storage medium comprising computer instructions which, when run on a resource transmission assurance device, cause the resource transmission assurance device to perform the method steps of any one of claims 1-6; or to carry out the method steps of any of claims 7 to 14.