WO2021046746A1

WO2021046746A1 - Method, device and system for reporting session management information

Info

Publication number: WO2021046746A1
Application number: PCT/CN2019/105339
Authority: WO
Inventors: 孙海洋; 李岩
Original assignee: 华为技术有限公司
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2021-03-18

Abstract

Provided in the embodiments of the present application are a method, device and system for reporting session management information. The method, device and system for reporting session management information are used to solve the problem of an excessively long path for reporting session management information (such as QNC). The method comprises: a session management network element determines that an access network device is needed for reporting first session management information to the session management network element via a first interface, wherein the first interface is an interface between the access network device and the session management network element; the session management network element sends first indication information to the access network device, wherein the first indication information is used to indicate that an access network device is needed for reporting first session management information to the session management network element via a first interface; and the session management network element receives the first session management information from the access network device via the first interface.

Description

Method, equipment and system for reporting session management information

Technical field

This application relates to the field of communication technology, and in particular to methods, devices and systems for reporting session management information.

Background technique

The rapid development of mobile communication has promoted the continuous emergence of various new services. In addition to the traditional mobile Internet and the Internet of Things, mobile communication has spawned many new application areas such as the Internet of Vehicles or industrial control. Such performance has also put forward higher demands, and the network load has further increased.

In order to effectively meet the requirements of high bandwidth and low latency required for the development of mobile communications, the European Telecommunication Standard Institute (ETSI) proposed a mobile edge computing (mobile edge computing, MEC) solution in 2014. MEC is a technology that deeply integrates base stations and Internet services based on the 5th generation (5G) evolution architecture. Figure 1 shows the MEC solution based on the 5G architecture. The MEC solution based on the 5G architecture usually has two ways. One is that the MEC server is deployed behind the radio access network (RAN) equipment (as shown in the first way in the figure), and it is deployed by sinking. The MEC server can directly offload local business data to the locally deployed application server, avoiding the circuitous flow of traffic in the core network. The other is that the MEC is deployed at the sinking user plane function (UPF) network element (ie, the local UPF network element) (as shown in the second mode in the figure). Compared with the traditional deployment method (as shown in the third method in the figure), the MEC solution can provide users with low-latency and high-bandwidth services.

In the existing quality of service (QoS) notification control (QoS notification control, QNC) mechanism, when the QoS target of the QoS flow (flow) cannot be met, the RAN device is managed through access and mobility The function (access and mobility management function, AMF) reports the QNC to the session management function (session management function, SMF) network element. However, in the MEC scenario, although the SMF network elements can be deployed very close to the RAN equipment, the AMF network elements are deployed centrally, so the path of the QNC mechanism is too long, which violates the original intention of the MEC solution design.

Summary of the invention

The embodiments of the present application provide a method, device, and system for reporting session management information, which are used to solve the problem of an excessively long path for reporting session management information (such as QNC).

In order to achieve the foregoing objectives, the embodiments of the present application adopt the following technical solutions:

In a first aspect, a method for reporting session management information is provided. The method includes: a session management network element determines that the first session management information requires an access network device to report to the session management network element through a first interface. Is the interface between the access network device and the session management network element; the session management network element sends first indication information to the access network device, and the first indication information is used to indicate that the first session management information requires the access The network access device reports to the session management network element through the first interface; the session management network element receives the first session management information from the access network device through the first interface. Based on this solution, because the access network device can send the first session management information to the session management network element through the interface between the access network device and the session management network element, that is, the first session management information does not need to go through a centralized network. Therefore, the path for reporting the first session management information can be shortened, thereby solving the problem that the path for reporting the session management information is too long.

In a possible design, the first session management information is session management information of the first quality of service QoS flow in the first packet data unit PDU session. That is, in this embodiment of the present application, the first session management information may be session management information with QoS flow granularity.

In a possible design, the session management network element determines that the first session management information requires the access network device to report to the session management network element through the first interface, including: the session management network element receives policy information from the policy control network element , The policy information includes second indication information, the second indication information is used to indicate that the session management information of the target service requires the access network device to report to the session management network element through the first interface, where the target service is located The QoS flow is the first QoS flow.

In a possible design, the first indication information includes the identity of the session management network element and first information, and the first information is used to indicate that the session management information of the first QoS flow requires the access network device to pass the The first interface reports to the corresponding session management network element.

In a possible design, the first session management information is session management information of the first PDU session. That is to say, in the embodiment of the present application, the first session management information may be session management information of PDU session granularity.

In a possible design, the session management network element determines that the first session management information requires the access network device to report to the session management network element through the first interface, including: the session management network element determines that the first PDU session is configured according to the local configuration. The corresponding data network name DNN or one or more of the slice information corresponding to the first PDU session determines that the session management information of the first PDU session requires the access network device to communicate to the session management network element through the first interface Reported.

In a possible design, the first indication information includes the identity of the session management network element.

In a possible design, the method further includes: the session management network element receives an identifier of the access network device from the access network device, and the identifier of the access network device is used to identify the access network device. Furthermore, when the session management network element sends information to the access network device, if the information sent to the mobility management network element is not involved, the relevant information can be sent to the access network device according to the identifier of the access network device, which can shorten The path through which the information is sent.

In a second aspect, a method for reporting session management information is provided. The method includes: an access network device receives first indication information from a session management network element, where the first indication information is used to indicate that the first session management information requires the The access network device needs to report to the session management network element through the first interface, which is the interface between the access network device and the session management network element; the access network device passes through The first interface sends the first session management information to the session management network element. Based on this solution, because the access network device can send the first session management information to the session management network element through the interface between the access network device and the session management network element, that is, the first session management information does not need to go through a centralized network. Therefore, the path for reporting the first session management information can be shortened, thereby solving the problem that the path for reporting the session management information is too long.

In a possible design, the first session management information is session management information of the first quality of service QoS flow in the first packet data unit PDU session.

In a possible design, the first session management information is session management information of the first PDU session.

In a possible design, the method further includes: the access network device sending an identification of the access network device to the session management network element, where the identification of the access network device is used to identify the access network device. Furthermore, when the session management network element sends information to the access network device, if the information sent to the mobility management network element is not involved, the relevant information can be sent to the access network device according to the identifier of the access network device, which can shorten The path through which the information is sent.

In a possible design, the access network device sends the first session management information to the session management network element through the first interface according to the first indication information, including: the access network device detects that the first After the session management information needs to be reported, the first session management information is sent to the session management network element through the first interface according to the first indication information.

In a third aspect, a method for reporting session management information is provided. The method includes: an access network device determines that first session management information requires the access network device to report to a corresponding session management network element through a first interface, and An interface is an interface between the access network device and the corresponding session management network element; the access network device sends the first session management information to the selected local session management network element through the first interface. Based on this solution, because the access network device can send the first session management information to the local session management network element through the interface between the access network device and the local session management network element, that is, the first session management information does not need to be centralized Therefore, the path for reporting the first session management information can be shortened, thereby solving the problem that the path for reporting the session management information is too long.

In a possible design, the access network device determines that the first session management information requires the access network device to report to the corresponding session management network element through the first interface, including: the access network device receives the information from the mobility management network element Indication information, where the indication information is used to indicate that the first session management information requires the access network device to report to the corresponding session management network element through the first interface.

In a possible design, the method further includes: the access network device selects the local session management network element.

In a possible design, the method further includes: the access network device sends identification information of the local session management network element to the mobility management network element, where the identification information of the local session management network element is used to trigger the local session management network element Insertion process.

In a possible design, the identification information of the local session management network element includes the identification of the local session management network element; or, the identification information of the local session management network element includes the next generation application protocol NGAP user association and a specific transport layer Associated binding information, where the NGAP user association is a logical association of user granularity between the access network device and the local session management network element, and the specific transport layer association is the access network device and the local session management The physical association between network elements.

In a possible design, the indication information includes the identifier of the local session management network element selected by the mobility management network element.

In a possible design, the first session management information is the session management information of the first quality of service QoS flow in the first packet data unit PDU session; or, the first session management information is the session management information of the first PDU session Session management information.

In a possible design, the method further includes: the access network device sends an identification of the access network device to the local session management network element, where the identification of the access network device is used to identify the access network device. Furthermore, when the local session management network element sends information to the access network device, if the information sent to the mobility management network element is not involved, the relevant information can be sent to the access network device according to the identifier of the access network device, so that Shorten the path of information transmission.

In a possible design, the method further includes: the access network device creates binding information for the terminal device to associate an NGAP user with a specific transport layer, where the NGAP user association is the access network device and the local session A logical association of user granularity between management network elements, and the specific transport layer association is a physical association between the access network device and the local session management network element.

In a possible design, the access network device sends the first session management information to the selected local session management network element through the first interface, including: the access network device detects that the first session management information needs to be reported After that, the first session management information is sent to the selected local session management network element through the first interface.

In a fourth aspect, a method for reporting session management information is provided. The method includes: a mobility management network element determines that the first session management information requires an access network device to report to a corresponding session management network element through a first interface. The interface is the interface between the access network device and the corresponding session management network element; the mobility management network element selects the local session management network element; the mobility management network element sends the identification of the local session management network element to the access network device The identifier of the local session management network element is used to indicate that the first session management information requires the access network device to report to the local session management network element through the first interface. Based on this solution, the access network device can send the first session management information to the local session management network element through the interface between the access network device and the local session management network element, that is, the first session management information does not need to be centralized. A network element (such as a mobility management network element) can therefore shorten the path for reporting the first session management information, thereby solving the problem that the path for reporting the session management information is too long.

In a possible design, the mobility management network element determines that the first session management information needs to be reported by the access network device to the corresponding session management network element through the first interface, including: the mobility management network element receives from the first session management network The indication information of the element, where the indication information is used to indicate that the first session management information requires the access network device to report to the corresponding session management network element through the first interface.

In a fifth aspect, a communication device is provided for implementing the above-mentioned various methods. The communication device may be the session management network element in the foregoing first aspect, or an apparatus including the foregoing session management network element; or, the communication device may be the access network device in the foregoing second or third aspect, or may include The above-mentioned device for access network equipment; or, the communication device may be the mobility management network element in the above-mentioned fourth aspect, or a device including the above-mentioned mobility management network element. The communication device includes a module, unit, or means corresponding to the foregoing method, and the module, unit, or means can be implemented by hardware, software, or hardware execution of corresponding software. The hardware or software includes one or more modules or units corresponding to the above-mentioned functions.

In a sixth aspect, a communication device is provided, including: a processor and a memory; the memory is used to store computer instructions, and when the processor executes the instructions, the communication device executes the method described in any of the above aspects. The communication device may be the session management network element in the foregoing first aspect, or an apparatus including the foregoing session management network element; or, the communication device may be the access network device in the foregoing second or third aspect, or may include The above-mentioned device for access network equipment; or, the communication device may be the mobility management network element in the above-mentioned fourth aspect, or a device including the above-mentioned mobility management network element.

In a seventh aspect, a communication device is provided, including: a processor; the processor is configured to couple with a memory, and after reading an instruction in the memory, execute the method according to any of the foregoing aspects according to the instruction. The communication device may be the session management network element in the foregoing first aspect, or an apparatus including the foregoing session management network element; or, the communication device may be the access network device in the foregoing second or third aspect, or may include The above-mentioned device for access network equipment; or, the communication device may be the mobility management network element in the above-mentioned fourth aspect, or a device including the above-mentioned mobility management network element.

In an eighth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores instructions that, when run on a computer, enable the computer to execute the method described in any of the above aspects.

In a ninth aspect, a computer program product containing instructions is provided, which when running on a computer, enables the computer to execute the method described in any of the above aspects.

In a tenth aspect, a communication device is provided (for example, the communication device may be a chip or a chip system), and the communication device includes a processor for implementing the functions involved in any of the above aspects. In a possible design, the communication device further includes a memory for storing necessary program instructions and data. When the communication device is a chip system, it may be composed of chips, or may include chips and other discrete devices.

Among them, the technical effects brought about by any of the design methods of the fifth aspect to the tenth aspect can be referred to the technical effects brought about by the different design methods in the first aspect or the second aspect or the third aspect or the fourth aspect. I won't repeat them here.

In an eleventh aspect, a communication method is provided. The communication method includes: the session management network element determines that the first session management information requires an access network device to report to the session management network element through a first interface, and the first interface is the access network. The interface between the device and the session management network element; the session management network element sends first indication information to the access network device, the first indication information is used to indicate that the first session management information requires the access network device to manage the session through the first interface The network element reports; the access network device receives the first instruction information from the session management network element, and according to the first instruction information, sends the first session management information to the session management network element through the first interface; the session management network element passes the first The interface receives the first session management information from the access network device. Among them, the technical effects brought about by the eleventh aspect can be referred to the technical effects brought about by the above-mentioned first aspect or the second aspect, which will not be repeated here.

In a twelfth aspect, a communication method is provided. The communication method includes: an access network device determines that first session management information requires the access network device to report to a corresponding session management network element through a first interface, and the first interface Is the interface between the access network device and the corresponding session management network element; the access network device sends the first session management information to the selected local session management network element through the first interface; the local session management network element passes The first interface receives the first session management information from the access network device.

In a possible design, the communication method further includes: the mobility management network element sends third indication information to the access network device, where the third indication information is used to indicate that the first session management information requires the access network device Report to the corresponding session management network element through the first interface; the access network device determines that the first session management information requires the access network device to report to the corresponding session management network element through the first interface, including: receiving from the mobility management The third indication information of the network element.

Among them, the technical effects brought about by any of the design methods in the twelfth aspect can be referred to the technical effects brought about by the different design methods in the third aspect, which will not be repeated here.

In a thirteenth aspect, a communication system is provided. The communication system includes: a session management network element and an access network device; wherein the session management network element is used to determine that the first session management information requires the access network device to pass the first session management information. The interface reports to the session management network element. The first interface is the interface between the access network device and the session management network element; the session management network element is also used to send first indication information to the access network device. To indicate that the first session management information needs to be reported by the access network device to the session management network element through the first interface; the access network device is used to receive the first instruction information from the session management network element, and according to the first instruction information, pass The first interface sends the first session management information to the session management network element; the session management network element is further configured to receive the first session management information from the access network device through the first interface. Among them, the technical effects brought about by the thirteenth aspect can be referred to the technical effects brought about by the above-mentioned first aspect or the second aspect, which will not be repeated here.

In a fourteenth aspect, a communication system is provided. The communication system includes an access network device and a local session management network element; the access network device is used to determine that the first session management information requires the access network device to pass the first session management information. The interface reports to the corresponding session management network element, and the first interface is the interface between the access network device and the corresponding session management network element; the access network device is also used to communicate to the selected session management network element through the first interface The local session management network element sends the first session management information; the local session management network element is configured to receive the first session management information from the access network device through the first interface.

In a possible design, the communication system further includes a mobility management network element; the mobility management network element is used to send third indication information to the access network device, and the third indication information is used to indicate the first session The management information requires the access network device to report to the corresponding session management network element through the first interface; the access network device is used to determine that the first session management information requires the access network device to report to the corresponding session through the first interface The management network element report includes: for receiving the third indication information from the mobility management network element.

Among them, the technical effects brought about by any of the design methods in the fourteenth aspect can be referred to the technical effects brought about by the different design methods in the above-mentioned third aspect, which will not be repeated here.

Description of the drawings

Figure 1 is a schematic structural diagram of an existing MEC solution based on 5G architecture;

Figure 2 shows the existing 5G QoS model;

Figure 3 is a schematic diagram of the existing signaling-based QoS flow establishment architecture;

FIG. 4 is a schematic structural diagram of a communication system provided by an embodiment of this application;

FIG. 5 is a schematic structural diagram of another communication system provided by an embodiment of this application;

Fig. 6a is a 5G network architecture 1 in a non-roaming scenario provided by an embodiment of the application;

FIG. 6b is a second 5G network architecture in a non-roaming scenario provided by an embodiment of the application;

Fig. 7a is a 5G network architecture 1 in a local grooming roaming scenario provided by an embodiment of the application;

FIG. 7b is the second 5G network architecture in the local grooming roaming scenario provided by an embodiment of the application;

FIG. 8a is the first 5G network architecture in the hometown routing roaming scenario provided by an embodiment of the application;

FIG. 8b is the second 5G network architecture in the hometown routing roaming scenario provided by an embodiment of the application;

FIG. 9 is a schematic structural diagram of a communication device provided by an embodiment of this application;

FIG. 10 is a first schematic flowchart of a method for reporting session management information provided by an embodiment of this application;

FIG. 11 is a second schematic flowchart of a method for reporting session management information provided by an embodiment of this application;

FIG. 12 is a third schematic flowchart of a method for reporting session management information provided by an embodiment of this application;

FIG. 13 is a fourth flowchart of a method for reporting session management information provided by an embodiment of this application;

FIG. 14 is a schematic structural diagram of a session management network element provided by an embodiment of this application;

FIG. 15 is a first structural diagram of an access network device provided by an embodiment of this application;

16 is a schematic diagram 2 of the structure of an access network device provided by an embodiment of this application;

Figure 17 is a schematic structural diagram of a mobility management network element provided by an embodiment of this application.

detailed description

To facilitate the understanding of the solutions of the embodiments of the present application, a brief introduction of related concepts is firstly given as follows:

First, packet data unit (PDU) session:

A PDU session is an association between a terminal device and a data network (data network, DN), and is used to provide a PDU connection service.

Second, QoS parameters:

The QoS parameters in the embodiments of this application include one or more of the following parameters:

1. 5G QoS identifier (5G QoS identifier, 5QI)

5QI is a scalar, used to index the corresponding 5G QoS features. 5QI is divided into standardized 5QI, pre-configured 5QI and dynamically allocated 5QI. For the standardized 5QI, there is a one-to-one correspondence with a set of standardized 5G QoS characteristic values; for the pre-configured 5QI, the corresponding 5G QoS characteristic values are pre-configured on the RAN device; for the dynamically allocated 5QI, the corresponding 5G QoS characteristics are determined by the core The network equipment is sent to the RAN equipment through a QoS profile (QoS profile).

2. Allocation and retention priority (allocation and retention priority, ARP)

ARP includes priority, preemption ability, and preemption ability.

3. Guaranteed flow bit rate (GFBR)

GFBR represents the bit rate expected to be provided to a guaranteed bit rate (guaranteed bit rate, GBR) QoS flow.

4. Maximum flow bit rate (MFBR)

MFBR limits the bit rate provided to GBR QoS flow, that is, the maximum bit rate provided to GBR QoS flow. If the bit rate is exceeded, the data packet can be discarded.

5. Reverse QoS attributes (reflective QoS attribute, RQA)

RQA is used to indicate the use of reverse QoS for services transmitted using the corresponding QoS flow.

6. QNC

QNC is used to instruct the RAN device whether to notify the network side when the GFBR cannot be met during the QoS flow usage period.

Third, the QoS model:

In the 5G system, in order to ensure the end-to-end service quality of the business, a 5G QoS model based on QoS flow (flow) is proposed, as shown in Figure 2. The 5G QoS model supports QoS flow with guaranteed bit rate (i.e. GBR QoS flow) and QoS flow without guaranteed bit rate (i.e. non-GBR (non-GBR) QoS flow). Data packets that use the same QoS flow control receive the same transmission processing (such as scheduling, admission threshold, etc.).

As shown in Figure 2, for a terminal device, one or more PDU sessions can be established with the 5G network; one or more QoS flows can be established in each PDU session. A QoS flow is identified by a QoS flow identifier (QFI), that is, QFI uniquely identifies a QoS flow in a session. Among them, a PDU session and a next generation radio access network (NG-RAN) device and a UPF network element between a general packet radio service (GPRS) tunnel protocol user plane ( GPRS tunneling protocol user plane, GTP-U) tunnels have a one-to-one correspondence; a QoS flow corresponds to a radio bearer between a terminal device and an NG-RAN device, and a radio bearer can correspond to one or more QoS flows.

Among them, whether a QoS flow is GBR QoS flow or Non-GBR QoS flow is determined by the corresponding QoS profile (QoS profile).

For GBR QoS flow, the corresponding QoS file must contain the following QoS parameters: 5QI, ARP, GFBR, and MFBR, optionally including QNC; according to whether the QoS file contains QNC, GBR QoS flow is divided into GRB QoS flow that requires notification control and non-notification control. GBR QoS flow that needs notification control. For GBR QoS flow requiring notification control, when the access network device detects that the corresponding QoS flow resource cannot be satisfied, the access network device notifies the session management function (SMF) network element of the event. Further SMF network elements can initiate a QoS flow deletion or modification process.

For Non-GBR QoS flow, the corresponding QoS file must include the following QoS parameters: 5QI and ARP; optionally, include RQA.

In addition, for GBR QoS flow, control is mainly based on signaling. The corresponding QoS flow establishment process is shown in Figure 3 and includes the following steps:

In the first step, the SMF network element determines the establishment of QoS flow according to the local policy or the policy and charging control (PCC) rules sent by the policy control function (PCF) network element, then 3a), send to the UPF The network element sends service data flow (SDF) information, the SDF information includes QoS control information; 3b), through the access and mobility management function (access and mobility management function, AMF) network element sends to the RAN equipment The QoS document of QoS flow; 3c). Send QoS rules (QoS rules) to terminal devices through AMF network elements and RAN devices. The QoS rules contain QoS control information.

In the second step, a QoS flow is established between the terminal device, the RAN device, and the UPF network element. The RAN device establishes an air interface radio bearer according to the QoS file, and stores the binding relationship between the QoS flow and the radio bearer.

For the downlink, when the UPF network element receives a downlink data packet, according to the SDF information sent by the SMF network element, the QFI is carried in the data packet header of the downlink data packet; when the RAN device receives the downlink data packet, it is based on the QFI and the QFI in the data packet header. According to the binding relationship between the corresponding QoS flow and the radio bearer, the downlink data packet is placed on the corresponding radio bearer for transmission.

For the uplink, when the terminal device determines to send the uplink data packet, it determines the QoS flow according to the QoS rules, and carries the QFI in the data packet header of the uplink data packet to be sent. At the same time, according to the binding relationship between the QoS flow and the radio bearer, the uplink data The packet is transmitted on the corresponding radio bearer. When the RAN device receives the uplink data packet, according to the QFI in the data packet header, the data packet header of the uplink data packet between the RAN device and the UPF network element includes the QFI. When the UPF network element receives the uplink data packet sent by the RAN device, it verifies whether the data packet is transmitted using the correct QoS flow.

Fourth, the binding mechanism:

The binding mechanism is the process of associating the service data flow (defined by the SDF template in the PCC rules) with the QoS flow of the transmission service data flow (English: The binding mechanism is the procedure that associates a service data flow (defined in a PCC) rule by means of the SDF template), to the QoS Flow deemed to transport the service data flow).

The binding mechanism includes the following three steps:

The first step is session binding (session binding), that is, a one-to-one correspondence between an application function (AF) session (session) and a PDU session. For details, please refer to the existing implementation mode, which will not be repeated here.

The second step, PCC rule authorization (PCC rule authorization), is executed by the PCF network element, the PCC rule is authorized, and the QoS parameters are assigned to the PCC rule. For details, please refer to the existing implementation method, which will not be repeated here.

The third step is QoS flow binding (QoS flow binding), that is, the PCC rules are associated with the QoS flow in the PDU session. Perform binding using the following binding parameters (English: QoS flow binding is the association of a PCC rule to a QoS flow within a PDU Session. The binding is performed using the following binding parameters):

1. 5QI, for related description, please refer to the above QoS parameter part, which will not be repeated here.

2. ARP. For related description, please refer to the above QoS parameter part, which will not be repeated here.

Or, optionally, if one or more of the following parameters are included in the PCC rules, one or more of the following parameters may also be used as binding parameters:

3. QNC. For related description, please refer to the above QoS parameter part, which will not be repeated here.

4. Priority level

The priority indicates the priority of scheduling resources in the QoS flow. Priority is used to distinguish QoS flows from the same terminal device, and it is also used to distinguish QoS flows from different terminal devices.

5. Average window (averaging window)

The average window is only used for GBR QoS flow, which represents the duration of calculating GFBR and MFBR.

6. Maximum data burst volume (MDBV)

MDBV indicates the maximum amount of data to be served within a packet delay budget (PDB) required by the 5G access network. Among them, PDB defines the upper limit of the time that a data packet can be transmitted between the terminal device and the UPF network element with the N6 interface.

Of course, the aforementioned priority, average window or maximum data burst volume can also be parameters in the QoS attribute corresponding to the aforementioned 5QI, which is not specifically limited here.

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Wherein, in the description of this application, unless otherwise stated, "/" means that the objects associated before and after are in an "or" relationship, for example, A/B can mean A or B; in this application, "and/or "It's just an association relationship that describes associated objects, which means that there can be three kinds of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A ,B can be singular or plural. Also, in the description of this application, unless otherwise specified, "plurality" means two or more than two. "The following at least one item (a)" or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a). For example, at least one item (a) of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple . In addition, in order to facilitate a clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same or similar items with substantially the same function and effect. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not limit the difference. Meanwhile, in the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations, or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as "exemplary" or "for example" are used to present related concepts in a specific manner to facilitate understanding.

In addition, the network architecture and business scenarios described in the embodiments of this application are intended to more clearly illustrate the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. Those of ordinary skill in the art will know that With the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

As shown in FIG. 4, a communication system 40 provided by an embodiment of this application. The communication system 40 includes a session management network element 401 and an access network device 402. The session management network element 401 and the access network device 402 may directly communicate with each other, or may communicate through the forwarding of other devices, which is not specifically limited in the embodiment of the present application.

The session management network element 401 is used to determine that the first session management information requires the access network device 402 to report to the session management network element 401 through the first interface, and the first interface is one of the access network device 402 and the session management network element 401 The session management network element 401 is also used to send first indication information to the access network device 402, the first indication information is used to indicate that the first session management information requires the access network device 402 to manage the session through the first interface The network element 401 reports; the access network device 402 is configured to receive the first instruction information from the session management network element 401, and according to the first instruction information, send the first session management information to the session management network element 401 through the first interface; The session management network element 401 is further configured to receive the first session management information from the access network device 402 through the first interface. Among them, the specific implementation of the above solution will be described in detail in the subsequent method embodiments, and will not be repeated here.

Based on the communication system provided by the embodiments of the present application, since the access network device can send the first session management information to the session management network element through the interface between the access network device and the session management network element, that is, the first session management information is not A centralized network element (such as a mobility management network element) is required, so the path for reporting the first session management information can be shortened, thereby solving the problem that the path for reporting the session management information is too long.

As shown in FIG. 5, another communication system 50 provided by an embodiment of this application. The communication system 50 includes an access network device 502 and a local session management network element 503. The local session management network element 503 and the access network device 502 may directly communicate with each other, or may communicate through the forwarding of other devices, which is not specifically limited in the embodiment of the present application.

Wherein, the access network device 502 is used to determine that the first session management information needs to be reported by the access network device 502 to the corresponding session management network element through the first interface. The first interface is the access network device 502 and the corresponding session management network element. The interface between the elements. The access network device 502 is further configured to send the first session management information to the selected local session management network element 503 through the first interface. The local session management network element 503 is configured to receive the first session management information from the access network device 502 through the first interface. Among them, the specific implementation of the above solution will be described in detail in the subsequent method embodiments, and will not be repeated here.

Based on the communication system provided by the embodiments of the present application, because the access network device can send the first session management information to the local session management network element through the interface between the access network device and the local session management network element, that is, the first session management The information does not need to go through a centralized network element (such as a mobile management network element), so the path for reporting the first session management information can be shortened, thereby solving the problem of the excessively long path for reporting the session management information.

Optionally, the first session management information in the embodiment of the present application may be the session management information of the first QoS flow in the first PDU session, that is, the session management information of the QoS flow granularity. Alternatively, the first session management information in the embodiment of the present application may be session management information of the first PDU session. Among them, the session management information of the first PDU session can also be said to be the session management information of the first PDU session granularity, or it can be said that it is the session management information of all QoS flows in the first PDU that need to report the session management information. The embodiments of the present application do not specifically limit this.

Exemplarily, the session management information in the embodiment of the present application may include, for example, QNC or information used to notify that a resource corresponding to a QoS flow has been released, or a PDU session modification request initiated by a terminal device, etc. This is not done in the embodiment of the present application. Specific restrictions.

Optionally, as shown in FIG. 5, the communication system 50 may further include a mobility management network element 501. The mobility management network element 501 and the access network device 502 can directly communicate with each other, or can communicate through the forwarding of other devices, which is not specifically limited in the embodiment of the present application. The mobility management network element 501 and the local session management network element 503 may communicate directly, or communicate through forwarding by other devices, which is not specifically limited in the embodiment of the present application.

Among them, the mobility management network element 501 is used to send third indication information to the access network device 502, and the third indication information is used to indicate that the first session management information requires the access network device 502 to manage the corresponding session through the first interface. The network element reports. The access network device 502 is configured to determine that the first session management information needs to be reported by the access network device 502 to the corresponding session management network element through the first interface, including: being used to receive the third indication information from the mobility management network element 501.

Optionally, as shown in FIG. 5, the communication system 50 may further include a first session management network element 504. The mobility management network element 501 and the first session management network element may directly communicate with each other, or communicate through forwarding by other devices, which is not specifically limited in the embodiment of the present application.

The first session management network element 504 is used to send fourth indication information to the mobility management network element 501, and the fourth indication information is used to indicate that the first session management information requires the access network device 502 to communicate to the corresponding session management network through the first interface. Yuan reported. The mobility management network element 501 is configured to receive the fourth indication information from the first session management network element. Furthermore, the mobility management network element 501 is configured to send the first indication information to the access network device 502, including: the mobility management network element 501 is configured to send the first indication information to the access network device 502 according to the fourth indication information.

Optionally, the communication system 40 shown in FIG. 4 or the communication system 50 shown in FIG. 5 may be applied to the 5G network currently under discussion or other future networks, etc., which is not specifically limited in the embodiment of the present application.

Exemplarily, assuming that the communication system 40 shown in FIG. 4 or the communication system 50 shown in FIG. 5 is applied to a 5G network architecture in a non-roaming scenario, as shown in FIG. 6a, the above-mentioned session management network element or the first session The network element or entity corresponding to the management network element may be an SMF network element in the non-roaming 5G network architecture, and the network element or entity corresponding to the aforementioned mobility management network element may be an AMF network element in the non-roaming 5G network architecture The network element or entity corresponding to the aforementioned access network device may be a RAN device in the non-roaming 5G network architecture, and the network element or entity corresponding to the aforementioned local session management network element may be in the non-roaming 5G network architecture Local SMF (local SMF, LSMF) network element (not shown).

In addition, as shown in Figure 6a, the non-roaming 5G network architecture may also include UPF network elements, PCF network elements, unified data management (UDM) network elements, and authentication server function (AUSF) network. Element or application function (AF) network element, etc., which are not specifically limited in the embodiment of the present application.

Among them, the terminal device communicates with the AMF network element through the next generation network (next generation, N) 1 interface (N1), the RAN device communicates with the AMF network element through the N2 interface (N2), and the RAN device communicates with the AMF network element through the N3 interface (N3). Communicate with UPF network element, UPF network element communicates with DN through N6 interface (abbreviated as N6), AMF network element communicates with SMF network element through N11 interface (abbreviated as N11), and AMF network element communicates with UDM network element through N8 interface (abbreviated as N8) Communication, AMF network element communicates with AUSF network element through N12 interface (abbreviated as N12), AMF network element communicates with PCF network element through N15 interface (abbreviated as N15), SMF network element communicates with PCF network element through N7 interface (abbreviated as N7), SMF network element communicates with UPF network element through N4 interface (abbreviated as N4), SMF network element communicates with UDM network element through N10 interface (abbreviated as N10), UDM network element communicates with AUSF network element through N13 interface (abbreviated as N13), PCF network The element communicates with the AF network element through the N5 interface (N5 for short).

In addition, it should be noted that the AMF network element, SMF network element, UDM network element, AUSF network element, PCF network element, LSMF network element, or AF network element in the non-roaming 5G network architecture shown in Figure 6a Meta can also interact with service-oriented interfaces. For example, as shown in Figure 6b, the service-oriented interface provided by the AMF network element can be Namf; the service-oriented interface provided by the SMF network element can be Nsmf; the service-oriented interface provided by the UDM network element can be Nudm; and the PCF network element The servicing interface provided externally may be Npcf, the servicing interface provided externally by the AUSF network element may be Nausf, and the servicing interface provided externally by the AF network element may be Naf. For related description, please refer to the 5G system architecture in the 23501 standard, which will not be repeated here.

Or, for example, assuming that the communication system 40 shown in FIG. 4 or the communication system 50 shown in FIG. 5 is applied to a 5G network architecture in a local breakout roaming scenario, then as shown in FIG. 7a, the above-mentioned conversation The network element or entity corresponding to the management network element or the first session management network element may be the SMF network element in the local grooming roaming 5G network architecture, and the network element or entity corresponding to the aforementioned mobility management network element may be the local grooming For the AMF network element in the roaming 5G network architecture, the network element or entity corresponding to the aforementioned access network device may be the RAN device in the local grooming roaming 5G network architecture, the network element corresponding to the aforementioned local session management network element, or The entity may guide the local roaming LSMF network element (not shown) in the 5G network architecture.

In addition, as shown in Figure 7a, the 5G network architecture for local grooming roaming may also include UPF equipment, visited PCF (visited PCF, vPCF) network elements, UDM network elements, home PCF (home PCF, hPCF) network elements, Or AUSF network elements, etc., which are not specifically limited in the embodiment of the present application. Among them, UDM network elements, AUSF network elements, and hPCF network elements belong to the home public land mobile network (HPLMN); RAN equipment, AMF network elements, SMF network elements, UPF network elements, AF network elements, or vPCF The network element belongs to the visited public land mobile network (VPLMN).

Among them, the terminal device communicates with the AMF network element through the N1 interface (abbreviated as N1), the RAN device communicates with the AMF network element through the N2 interface (abbreviated as N2), and the RAN device communicates with the UPF network element through the N3 interface (abbreviated as N3). UPF network element Communicate with DN through N6 interface (abbreviated as N6), AMF network element communicates with SMF network element through N11 interface (abbreviated as N11), AMF network element communicates with UDM network element through N8 interface (abbreviated as N8), and AMF network element through N12 interface ( N12 for short) communicate with AUSF network elements, AMF network elements communicate with vPCF network elements through N15 interface (N15 for short); SMF network elements communicate with vPCF network elements through N7 interface (N7 for short), and vPCF network elements through N24 interface (N24 for short) ) Communicate with hPCF network elements, vPCF network elements communicate with AF network elements through N5 interface (N5 for short), SMF network elements communicate with UPF network elements through N4 interface (N4 for short), and SMF network elements communicate with UPF network elements through N10 interface (N10 for short) UDM network element communication, UDM network element communicates with AUSF network element through N13 interface (abbreviated as N13).

In addition, it should be noted that the AMF network element, SMF network element, UDM network element, AUSF network element, vPCF network element, AF network element, or hPCF network element in the local grooming roaming 5G network architecture shown in Figure 7a Network elements can also interact with service-oriented interfaces. For example, as shown in Figure 7b, the servicing interface provided by the AMF network element externally can be Namf; the servicing interface provided by the SMF network element externally can be Nsmf; the servicing interface provided by the UDM network element externally can be Nudm; vPCF network elements The servicing interface provided externally can be Npcf; the servicing interface provided externally by the hPCF network element can be Npcf; the servicing interface provided externally by the AUSF network element can be Nausf; the servicing interface provided externally by the AF network element can be Naf. In addition, the visited security edge protection proxy (vSEPP) in Figure 7b is used for information filtering and policy control of the VPLMN internal control plane interface, as well as topology hiding, etc.; the home security edge protection proxy in Figure 7b (home security edge protection proxy, hSEPP) is used for information filtering and policy control of the HPLMN internal control plane interface, as well as topology hiding, etc.; vSEPP and hSEPP are connected through the N32 interface (N32 for short). All related descriptions can refer to the 5G system architecture in the 23501 standard, which is not repeated here.

Or, for example, assuming that the communication system 40 shown in FIG. 4 or the communication system 50 shown in FIG. 5 is applied to a 5G network architecture in a home routed roaming scenario, then as shown in FIG. 8a, the above-mentioned session The management network element or the network element or entity corresponding to the first session management network element may be the home SMF (home SMF, hSMF) network element in the 5G network architecture of the home routing roaming, and the network corresponding to the above-mentioned mobility management network element The element or entity may be the AMF network element in the 5G network architecture of the home router roaming, and the network element or entity corresponding to the above-mentioned access network device may be the RAN device in the home router roaming 5G network architecture, the above-mentioned local session The network element or entity corresponding to the management network element may be an LSMF network element (not shown) in the 5G network architecture of the home routing roaming.

In addition, as shown in Figure 8a, the hometown routing roaming 5G network architecture may also include home UPF (home UPF, hUPF) network elements, visited UPF (visited UPF, vUPF) network elements, and visited SMF (visited SMF). vSMF) network element, hPCF network element, UDM network element, vPCF network element, or AUSF network element, etc., which are not specifically limited in the embodiment of the present application. Among them, UDM network elements, AUSF network elements, hSMF network elements, hPCF network elements, hUPF network elements, or AF network elements belong to HPLMN; RAN equipment, AMF network elements, vSMF network elements, vUPF network elements, or vPCF network elements belong to HPLMN; VPLMN.

Among them, the terminal device communicates with the AMF network element through the N1 interface (abbreviated as N1), the RAN device communicates with the AMF network element through the N2 interface (abbreviated as N2), the RAN device communicates with the vUPF network element through the N3 interface (abbreviated as N3), and the vUPF network element Communicate with hUPF network elements through the N9 interface (abbreviated as N9), hUPF network elements communicate with DN through the N6 interface (abbreviated as N6), AMF network elements communicate with vSMF network elements through the N11 interface (abbreviated as N11), and vSMF network elements through the N16 interface ( N16 for short) communicates with hSMF network element, AMF network element communicates with UDM network element through N8 interface (N8 for short), AMF network element communicates with AUSF network element through N12 interface (N12 for short), and AMF network element through N15 interface (N15 for short) ) Communicate with vPCF network elements; vPCF network elements communicate with hPCF network elements through the N24 interface (N24 for short), vSMF network elements communicate with vUPF network elements through the N4 interface (N4 for short), and hSMF network elements communicate with the vUPF network element through the N4 interface (N4 for short) hUPF network element communication, hSMF network element communicates with UDM network element through N10 interface (referred to as N10), hSMF network element communicates with hPCF network element through N7 interface (referred to as N7), UDM network element communicates with AUSF network through N13 interface (referred to as N13) Meta communication, the h-PCF network element communicates with the AF network element through the N5 interface (N5 for short).

In addition, it should be noted that the AMF network element, vSMF network element, hSMF network element, UDM network element, AUSF network element, vPCF network element, or hPCF network element in the hometown routing roaming 5G network architecture shown in Figure 8a Network elements can also interact with service-oriented interfaces. For example, as shown in Figure 8b, the servicing interface provided by the AMF network element to the outside can be Namf; the servicing interface provided by the vSMF network element can be Nsmf; the servicing interface provided by the hSMF network element can be Nsmf; UDM network element The servicing interface provided externally can be Nudm; the servicing interface provided externally by vPCF network elements can be Npcf; the servicing interface provided externally by hPCF network elements can be Npcf; the servicing interface provided externally by AUSF network elements can be Nausf, AF The service-oriented interface provided by the network element to the outside may be Naf. In addition, vSEPP in Figure 8b is used for information filtering and policy control of the internal control plane interface of the VPLMN, as well as topology hiding; hSEPP in Figure 8b is used for information filtering and policy control of the internal control plane interface of HPLMN, as well as topology hiding, etc.; vSEPP and hSEPP are connected through the N32 interface (abbreviated as N32). All related descriptions can refer to the 5G system architecture in the 23501 standard, which is not repeated here.

It should be noted that the connection modes of the LSMF network elements not shown in Fig. 6a, Fig. 6b, Fig. 7a and Fig. 7b can refer to the connection modes of the SMF network elements in the corresponding drawings, and the LSMF not shown in Fig. 8a and Fig. 8b For the connection mode of the network element, please refer to the connection mode of the hSMF network element in the corresponding figure, which is described here in a unified manner, and will not be repeated in the following.

Optionally, the terminal device in the embodiment of the present application may be a device used to implement a wireless communication function, such as a terminal or a chip that can be used in a terminal. Among them, the terminal may be a user equipment (UE), an access terminal, a terminal unit, a terminal station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, and wireless communication in a 5G network or a future evolved PLMN. Equipment, terminal agent or terminal device, etc. The access terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices or wearable devices, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, industrial control (industrial) Wireless terminal in control), wireless terminal in self-driving (self-driving), wireless terminal in remote medical (remote medical), wireless terminal in smart grid (smart grid), wireless terminal in transportation safety (transportation safety) Terminals, wireless terminals in smart cities, wireless terminals in smart homes, etc. The terminal can be mobile or fixed.

Optionally, the RAN equipment in the embodiments of the present application refers to equipment that accesses the core network, such as a base station, a broadband network gateway (BNG), an aggregation switch, and a non-third-generation partnership plan ( 3rd generation partnership project, 3GPP) access equipment, etc. The base station may include various forms of base stations, such as: macro base stations, micro base stations (also referred to as small stations), relay stations, access points, and so on.

Optionally, the session management network element, access network device, or mobility management network element in the embodiment of this application may also be referred to as a communication device, which may be a general-purpose device or a dedicated device. There is no specific limitation.

Optionally, the related functions of the session management network element, the access network device, or the mobility management network element in the embodiments of the present application may be implemented by one device, or jointly implemented by multiple devices, or by a device in one device. One or more functional modules are implemented, which is not specifically limited in the embodiment of the present application. It is understandable that the above functions can be network elements in hardware devices, software functions running on dedicated hardware, or a combination of hardware and software, or instantiated on a platform (for example, a cloud platform) Virtualization function.

For example, the related functions of the session management network element, the access network device, or the mobility management network element in the embodiment of the present application may be implemented by the communication device 900 in FIG. 9. FIG. 9 is a schematic structural diagram of a communication device 900 provided by an embodiment of the application. The communication device 900 includes one or more processors 901, a communication line 902, and at least one communication interface (in FIG. 9 it is only an example that includes a communication interface 904 and a processor 901 as an example), optional The memory 903 can also be included.

The processor 901 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more programs for controlling the execution of the program of this application. integrated circuit.

The communication line 902 may include a path for connecting different components.

The communication interface 904 may be a transceiver module for communicating with other devices or communication networks, such as Ethernet, RAN, wireless local area networks (WLAN), and so on. For example, the transceiver module may be a device such as a transceiver or a transceiver. Optionally, the communication interface 904 may also be a transceiver circuit located in the processor 901 to implement signal input and signal output of the processor.

The memory 903 may be a device having a storage function. For example, it can be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions Dynamic storage devices can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM), or other optical disk storage, optical disc storage ( Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be stored by a computer Any other media taken, but not limited to this. The memory may exist independently, and is connected to the processor through the communication line 902. The memory can also be integrated with the processor.

Wherein, the memory 903 is used to store computer-executable instructions for executing the solution of the present application, and the processor 901 controls the execution. The processor 901 is configured to execute computer-executable instructions stored in the memory 903, so as to implement the method for reporting session management information provided in the embodiment of the present application.

Or, optionally, in the embodiment of the present application, the processor 901 may also perform processing related functions in the method for reporting session management information provided in the following embodiments of the present application, and the communication interface 904 is responsible for communicating with other devices or communication networks. Communication, the embodiment of this application does not specifically limit this.

Optionally, the computer-executed instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.

In a specific implementation, as an embodiment, the processor 901 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 9.

In a specific implementation, as an embodiment, the communication device 900 may include multiple processors, such as the processor 901 and the processor 908 in FIG. 9. Each of these processors can be a single-core processor or a multi-core processor. The processor here may include but is not limited to at least one of the following: central processing unit (CPU), microprocessor, digital signal processor (DSP), microcontroller (microcontroller unit, MCU), or artificial intelligence Various computing devices such as processors that run software. Each computing device may include one or more cores for executing software instructions to perform operations or processing.

In a specific implementation, as an embodiment, the communication device 900 may further include an output device 905 and an input device 906. The output device 905 communicates with the processor 901 and can display information in a variety of ways. For example, the output device 905 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector) Wait. The input device 906 communicates with the processor 901, and can receive user input in a variety of ways. For example, the input device 906 may be a mouse, a keyboard, a touch screen device, or a sensing device.

The aforementioned communication device 900 may sometimes be referred to as a communication device, which may be a general-purpose device or a special-purpose device. For example, the communication device 900 may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, the above-mentioned terminal device, the above-mentioned network device, or a picture 9 similar structure equipment. The embodiment of the present application does not limit the type of the communication device 900.

The method for reporting session management information provided by an embodiment of the present application will be specifically described below in conjunction with FIG. 1 to FIG. 9.

It should be noted that the name of the message between each network element or the name of each parameter in the message in the following embodiments of the present application is just an example, and other names may also be used in specific implementation, which is not done in the embodiments of the present application. Specific restrictions.

First, take the communication system shown in FIG. 4 applied to the 5G network architecture in the non-roaming scenario shown in FIG. 6a or FIG. 6b as an example. As shown in FIG. 10, a report session management provided by this embodiment of the application Information method, the method for reporting session management information includes the following steps:

S1001. The terminal device triggers the PDU session establishment process or the terminal device or the network side triggers the PDU session modification process. For related implementations, reference may be made to the prior art, which will not be repeated here.

S1002. Optionally, the PCF network element sends a policy association modification (policy association modification) request to the SMF network element. Correspondingly, the SMF network element receives the policy association modification request from the PCF network element.

Wherein, the policy association modification request carries policy information (for example, PCC rules). Optionally, the policy information may include indication information 1. The indication information 1 is used to indicate that the session management information of the target service requires the RAN device to report to the SMF network element through the first interface, which is one of the RAN device and the SMF network element. Between the interface.

In a possible implementation manner, in this embodiment of the application, the indication information 1 is used to indicate that the session management information of the target service requires the RAN device to report to the SMF network element through the first interface. This can be achieved in the following way: indication information 1 includes the target service The information and session management information need to be reported by the RAN device to the SMF network element through the first interface. For example, the indication information 1 includes app.1, where "app" is the information of the target service, and "1" represents the information that the RAN device needs to report to the SMF network element through the first interface for the session management information. Exemplarily, the target service information here may include, for example, a service data flow template, an AF application identifier (AF application identifier), an AF service identifier (AF service identifier), or an AF communication service identifier (AF communication service identifier). )Wait.

Optionally, the indication information 1 in the embodiment of the present application may not include the information of the target service itself, but include the information that the RAN device needs to report to the SMF network element through the first interface for the session management information. At this time, in addition to the indication information 1, the policy association modification request also needs to include the information of the target service. For the information of the target service, please refer to the relevant example of "app" in the indication information 1, which will not be repeated here.

Optionally, the indication information 1 in the embodiment of the present application may also only be used to indicate that the RAN device needs to report to the SMF network element through the first interface. At this time, in addition to the indication information 1 and the target service information, the policy association modification request also needs to include session management information. For example, the policy information may also include QoS parameters, such as QNC. Wherein, the indication information 1+QNC is used to indicate that QNC requires the RAN device to report to the SMF network element through the first interface, and the indication information 1+QNC+the information of the target service is used to indicate that the QNC of the target service requires the RAN device to report to the SMF network through the first interface Meta-reporting is not specifically limited in the embodiment of this application.

Optionally, the indication information 1 in the embodiment of the present application may also be referred to as second indication information, which is not specifically limited in the embodiment of the present application.

Optionally, in the embodiment of the present application, if the policy information includes indication information 1, the SMF network element needs to consider the indication information 1 when performing QoS flow binding. Because the scheduling of RAN equipment is QoS flow granular, it can only be reported by the RAN equipment to the SMF network element through the first interface or not reported by the RAN equipment to the SMF network element through the first interface. If QoS flow binding is performed, it will not be considered In the above indication 1, a QoS flow may have some services that require the RAN device to report to the SMF network element through the first interface, and some services do not require the RAN device to report to the SMF network element through the first interface, which will cause signaling failure. optimization.

S1003. The SMF network element determines that the session management information of the first QoS flow in the first PDU session requires the RAN device to report to the SMF network element through the first interface, where the first QoS flow is the QoS flow where the target service is located; the first PDU The session is the current PDU session.

Optionally, in this embodiment of the present application, if the above-mentioned policy information includes indication information 1, the SMF network element may determine the session management information requirement of the first QoS flow in the first PDU session according to the indication information 1 in step S1002 The RAN device reports to the SMF network element through the first interface. In addition, if the indication information 1 itself does not include the target service information, the SMF network element can determine that the session management information of the first QoS flow in the first PDU session requires the RAN device to pass the first QoS flow based on the indication information 1 and the target service information. One interface reports to the SMF network element; or, if the above indication information 1 is only used to indicate that the RAN device needs to report to the SMF network element through the first interface, the SMF network element can report according to the indication information 1, the target service information, and the session management information (Such as QNC), determining the session management information of the first QoS flow in the first PDU session requires the RAN device to report to the SMF network element through the first interface, which is not specifically limited in the embodiment of the present application.

Of course, if the above step S1002 is not performed, the SMF network element may also determine the session management information of the first QoS flow in the first PDU session according to the local configuration or local policy. The RAN device needs to report to the SMF network element through the first interface. The embodiment of the present application does not specifically limit this.

S1004. The SMF network element sends instruction information 2 to the RAN device through the AMF network element. The RAN device receives the indication information 2 from the SMF network element.

Wherein, the indication information 2 includes the identification of the SMF network element and the first information, and the first information is used to indicate that the session management information of the first QoS flow in the current PDU session requires the RAN device to report to the SMF network element through the first interface.

In a possible implementation manner, in this embodiment of the application, the first information is used to indicate that the session management information of the first QoS flow requires the RAN device to report to the SMF network element through the first interface, which can be implemented in the following manner: the first information includes The information of the first QoS flow and the session management information require information that the RAN device reports to the SMF network element through the first interface. For example, the indication information 2 includes app.1, where "app" is the information of the first QoS flow, and "1" represents the information that the RAN device needs to report to the SMF network element through the first interface for the session management information. Exemplarily, the information of the first QoS flow may include the identifier of the first QoS flow, for example.

Optionally, the first information in the embodiment of the present application may not include the information of the first QoS flow itself, but includes the information that the RAN device needs to report to the SMF network element through the first interface for the session management information. At this time, in addition to sending the instruction information 2 to the RAN device, the SMF network element also needs to send the information of the first QoS flow, which is explained here in a unified manner, and will not be repeated in the following.

Optionally, the first information in the embodiment of the present application may also only be used to indicate that the RAN device needs to report to the SMF network element through the first interface. At this time, in addition to sending the indication information 2 and the information of the first QoS flow to the RAN device, the SMF network element also needs to send session management information (such as QNC) to the RAN device. Among them, the first information + session management information in the indication information 2 is used to indicate that the session management information requires the RAN device to report to the SMF network element through the first interface, and the first information in the indication information 2 + session management information + the first QoS flow The information is used to indicate that the session management information of the first QoS flow needs to be reported by the RAN device to the SMF network element through the first interface, which is not specifically limited in the embodiment of the present application.

Optionally, the indication information 2 in the embodiment of the present application may also be referred to as the first indication information, which is not specifically limited in the embodiment of the present application.

Optionally, the first information in the embodiment of the present application may be carried in the QoS file sent by the SMF network element to the RAN device; the identification of the SMF network element may be carried in the N2 session management (session management) sent by the SMF network element to the RAN device. , SM) In the container (container), the unified description is here, and the details are not repeated below.

Optionally, in the embodiment of the present application, the foregoing first information and the SMF network element identifier may be in the same message or in different messages, which is not specifically limited in the embodiment of the present application.

It should be noted that, in the embodiment of this application, the identifier of the SMF network element sent in the scenario where multiple SMF network elements serve the same PDU session is the identifier of the SMF network element directly connected to the AMF network element (that is, the intermediate SMF (intermediate SMF (intermediate SMF)). SMF, I-SMF) the identification of the network element), that is, the SMF network element in Figure 10 can be regarded as the SMF network element directly connected to the AMF network element, and the PCF network element may communicate with the SMF network element through other The SMF network element of this application does not specifically limit this in the embodiment of this application.

S1005. Optionally, the RAN device sends the identification of the RAN device to the SMF network element, and the SMF network element receives the identification of the RAN device from the RAN device. Among them, the identifier of the RAN device is used to identify the RAN device.

Furthermore, when the SMF network element sends information to the RAN device, if the information sent to the AMF network element is not involved, the relevant information can be sent to the RAN device according to the identifier of the RAN device, which is not specifically limited in this embodiment of the application.

S1006. For other steps of the PDU session establishment process or the PDU session modification process, reference may be made to the prior art for details, and details are not repeated here.

S1007. After detecting that the session management information of the first QoS flow needs to be reported, the RAN device sends the session management information of the first QoS flow to the SMF network element through the first interface according to the instruction information 2. The SMF network element receives the session management information of the first QoS flow from the RAN device through the first interface.

Optionally, in this embodiment of the present application, the RAN device may maintain the mapping relationship between the information of the first QoS flow (such as the flow identifier) and the identification of the SMF network element, and then the RAN device detects that the session management information of the first QoS flow needs to be After reporting, the session management information of the first QoS flow can be sent to the corresponding SMF network element through the first interface according to the instruction information 2.

Or, optionally, in this embodiment of the application, the RAN device may maintain the mapping relationship between the information of the first PDU session (such as the session identifier) and the identifier of the SMF network element, and then the RAN device detects the session management of the first QoS flow. After the information needs to be reported, the session management information of the first QoS flow can be sent to the corresponding SMF network element through the first interface according to the instruction information 2.

Based on the method for reporting session management information provided by the embodiments of the present application, since the RAN device can send the session management information of the first QoS flow to the SMF network element through the interface between the RAN device and the SMF network element, that is, the first QoS The session management information of the flow does not need to go through a centralized network element (such as an AMF network element), so the path for reporting the session management information of the first QoS flow can be shortened, thereby solving the problem of the excessively long path for reporting the session management information.

The actions of the SMF network element or the RAN device in the above steps S1001 to S1007 can be executed by the processor 901 in the communication device 900 shown in FIG. 9 calling the application code stored in the memory 903, which is not done in this embodiment. Any restrictions.

Optionally, taking the communication system shown in FIG. 4 applied to the 5G network architecture in the non-roaming scenario shown in FIG. 6a or FIG. 6b as an example, as shown in FIG. 11, another method provided by this embodiment of the application A method for reporting session management information, the method for reporting session management information includes the following steps:

S1101. The terminal device triggers the PDU session establishment process or the terminal device or the network side triggers the PDU session modification process. For related implementations, reference may be made to the prior art, which will not be repeated here.

S1102. Optionally, the PCF network element sends a policy association modification request to the SMF network element. Correspondingly, the SMF network element receives the policy association modification request from the PCF network element.

Wherein, the policy association modification request carries policy information (for example, PCC rules). The strategy information may include target business information, which is used to identify the target business. Exemplarily, the target service information here may include, for example, a service data flow template, an AF application identifier (AF application identifier), an AF service identifier (AF service identifier), or an AF communication service identifier (AF communication service identifier). )Wait.

S1103, SMF network element according to local configuration/local policy, QoS parameters in policy information (such as 5QI), data network name (DNN) corresponding to the first PDU session, or slice information corresponding to the first PDU session One or more of determining the session management information of the first PDU session requires the RAN device to report to the SMF network element through the first interface. The first PDU session here is the current PDU session.

S1104. The SMF network element sends the identification of the SMF network element to the RAN device through the AMF network element. The RAN device receives the identification of the SMF network element from the SMF network element.

Optionally, in the embodiment of the present application, the SMF network element may also send instruction information 3 to the RAN device through the AMF network element, and the instruction information 3 indicates that the session management information in the first PDU session requires the RAN device to communicate to the SMF network through the first interface. Meta-reporting is not specifically limited in the embodiment of this application.

In a possible implementation manner, in this embodiment of the application, the indication information 3 is used to indicate that the session management information of the first PDU session requires the RAN device to report to the SMF network element through the first interface. This can be achieved in the following manner: the indication information 3 includes The information of the first PDU session and the session management information require information that the RAN device reports to the SMF network element through the first interface. For example, the indication information 3 includes app.1, where "app" is the information of the first PDU session, and "1" indicates that the session management information requires the RAN device to report information to the SMF network element through the first interface. Exemplarily, the information of the first PDU session here may include, for example, the identifier of the first PDU session.

Of course, the indication information 3 in the embodiment of this application may not itself include the information of the first PDU session. The RAN device can understand that the indication information 3 is for the current first PDU session, and this embodiment of this application does not specifically describe this. limited.

Optionally, the indication information 3 in the embodiment of this application can be carried in the QoS file sent by the SMF network element to the RAN device; the identification of the SMF network element can be carried in the N2SM container sent by the SMF network element to the RAN device, where Unified instructions, and will not repeat them below.

Optionally, in the embodiment of the present application, the indication information 3 and the SMF network element identifier may be in the same message or in different messages, which is not specifically limited in the embodiment of the present application.

It should be noted that, in the embodiment of this application, the identifier of the SMF network element sent in the scenario where multiple SMF network elements serve the same PDU session is the identifier of the SMF network element directly connected to the AMF network element, that is, the figure The SMF network element in 11 can be regarded as the SMF network element directly connected to the AMF network element, and the PCF network element may communicate with the SMF network element through other SMF network elements, which is not specifically limited in the embodiment of the application.

S1105. Optionally, the RAN device sends the identification of the RAN device to the SMF network element, and the SMF network element receives the identification of the RAN device from the RAN device. Among them, the identifier of the RAN device is used to identify the RAN device.

In S1106, other steps of the PDU session establishment process or the PDU session modification process may be specifically referred to in the prior art, which will not be repeated here.

S1107. After detecting that the session management information of the second QoS flow in the first PDU session needs to be reported, the RAN device sends the session management information of the second QoS flow to the SMF network element through the first interface. The SMF network element receives the session management information of the second QoS flow from the RAN device through the first interface. The second QoS flow is any QoS flow that needs to report session management information in the first PDU session.

Optionally, in this embodiment of the application, the RAN device may maintain the mapping relationship between the information of the first PDU session (such as the session identifier) and the identifier of the SMF network element, and then the RAN device detects that the session management information of the second QoS flow needs to be After reporting, the session management information of the second QoS flow can be sent to the corresponding SMF network element through the first interface.

Based on the method for reporting session management information provided by the embodiments of the present application, since the RAN device can send the session management information of the second QoS flow to the SMF network element through the interface between the RAN device and the SMF network element, that is, the second QoS The session management information of the flow does not need to go through a centralized network element (such as an AMF network element), so the path for reporting the session management information of the second QoS flow can be shortened, thereby solving the problem of the excessively long path for reporting the session management information.

Wherein, the actions of the SMF network element or the RAN device in the above steps S1101 to S1107 can be executed by the processor 901 in the communication device 900 shown in FIG. 9 calling the application code stored in the memory 903, which is not done in this embodiment. Any restrictions.

Optionally, taking the communication system shown in FIG. 5 applied to the 5G network architecture in the non-roaming scenario shown in FIG. 6a or FIG. 6b as an example, as shown in FIG. 12, another method provided by this embodiment of the application A method for reporting session management information, the method for reporting session management information includes the following steps:

S1201. Optionally, after the first PDU session of the terminal device is established, the SMF network element sends the indication information 4 to the AMF network element, and the AMF network element receives the indication information 4 from the SMF network element. Wherein, the indication information 4 indicates that the first session management information requires the RAN device to report to the corresponding SMF network element through the first interface. The first interface is the interface between the RAN device and the corresponding SMF network element.

Optionally, the first session management information in the embodiment of the present application may be the session management information of the first QoS flow in the first PDU session. In this case, the relevant description of the indication information 4 can refer to the indication information 2 in the embodiment shown in FIG. 10, and details are not repeated here.

Or, optionally, the first session management information in the embodiment of the present application may be session management information of the first PDU session. In this case, the relevant description of the indication information 4 can refer to the indication information 3 in the embodiment shown in FIG. 11, which will not be repeated here.

Wherein, after the AMF network element receives the indication information 4, it can be determined according to the indication information 4 that the first session management information requires the RAN device to report to the corresponding SMF network element through the first interface. Of course, in the embodiment of the present application, the AMF network element may also determine that the first session management information requires the RAN device to report to the corresponding SMF network element through the first interface according to the local configuration information, which is not specifically limited in the embodiment of the present application.

S1202. Optionally, the AMF network element sends the instruction information 5 to the RAN device, and the RAN device receives the instruction information 5 from the AMF network element. Wherein, the indication information 5 indicates that the first session management information requires the RAN device to report to the corresponding SMF network element through the first interface.

Among them, the relevant description of the indication information 5 can refer to the above indication information 4, which will not be repeated here.

Wherein, after the RAN device receives the instruction information 5, it can be determined according to the instruction information 5 that the first session management information requires the RAN device to report to the corresponding SMF network element through the first interface. Of course, in the embodiment of the present application, the RAN device may also determine that the first session management information requires the RAN device to report to the corresponding SMF network element through the first interface according to the local configuration information, which is not specifically limited in the embodiment of the present application.

S1203. The RAN device selects an LSMF network element.

Among them, there is a direct interface between the LSMF network element and the RAN device in the embodiment of the present application, which is described here in a unified manner, and will not be repeated in the following.

Optionally, in this embodiment of the application, LSMF information, such as LSMF identification and location information, can be pre-configured on the RAN device. The RAN device can select an LSMF network element closest to itself or the LSMF network element closest to the terminal device. yuan. Of course, the RAN device can also select the LSMF network element in other ways, which is not specifically limited in the embodiment of the present application.

It should be noted that, in specific implementation, the LSMF network element may also be a special instance in the AMF network element group, which is not specifically limited in the embodiment of the present application.

Optionally, in this embodiment of the application, the RAN device may create a next generation application protocol (NGAP) user association for the terminal device to associate binding information associated with a specific transport network layer (TNL). Among them, the NGAP user association is a logical association of user granularity or PDU session granularity between the RAN device and the LSMF network element, and the specific transport layer association is the physical association between the RAN device and the LSMF network element.

S1204. The RAN device sends the identification information of the LSMF network element to the AMF network element, and the AMF network element receives the identification information of the LSMF network element from the RAN device.

In a possible implementation manner, the identification information of the LSMF network element may be the identification of the LSMF network element.

In another possible implementation manner, the identification information of the LSMF network element may be the binding information associated with a specific transport layer for the NGAP user association created by the RAN device for the terminal device.

Optionally, in this embodiment of the application, the RAN device may maintain the mapping relationship between the information of the first PDU session (such as the session identifier) and the identification information of the LSMF network element, or the RAN device may maintain the information of the first QoS flow (such as The mapping relationship between the flow identifier) and the identification information of the LSMF network element is not specifically limited in the embodiment of the present application.

S1205. The AMF network element triggers the insertion process of the LSMF network element. For related implementation, reference may be made to the prior art, which will not be repeated here.

S1206. Optionally, the RAN device sends an identification of the RAN device to the LSMF network element, and the LSMF network element receives the identification of the RAN device from the RAN device. Among them, the identifier of the RAN device is used to identify the RAN device.

Furthermore, when the LSMF network element sends information to the RAN device, if the information sent to the AMF network element is not involved, the relevant information can be sent to the RAN device according to the identifier of the RAN device, which is not specifically limited in this embodiment of the application.

S1207. After detecting that the first session management information needs to be reported, the RAN device sends the first session management information to the LSMF network element through the first interface. The LSMF network element receives the first session management information from the RAN device through the first interface.

Exemplarily, assuming that the first session management information is the session management information of the first QoS flow in the first PDU session, the RAN device may maintain the information (such as flow identification) of the first QoS flow and the identification of the LSMF network element. For the information mapping relationship, after detecting that the session management information of the first QoS flow needs to be reported, the session management information of the first QoS flow is sent to the LSMF network element through the first interface. Or, as an example, assuming that the first session management information is the session management information of the first QoS flow in the first PDU session, the RAN device may maintain the information of the first PDU session (such as the session identifier) and the LSMF network element. After detecting that the session management information of the first QoS flow needs to be reported, the session management information of the first QoS flow is sent to the LSMF network element through the first interface. Or, for example, assuming that the first session management information is the session management information of the first PDU session, the RAN device may maintain the mapping relationship between the information of the first PDU session (such as the session identifier) and the identification information of the LSMF network element. After detecting that the session management information of the second QoS flow in the first PDU session needs to be reported, the session management information of the second QoS flow is sent to the LSMF network element through the first interface, and the second QoS flow is the first PDU session Any QoS flow in which session management information needs to be reported.

Optionally, in the embodiment of the present application, if the RAN device creates binding information associated with the NGAP user association and a specific transport layer for the terminal device, the RAN device may send the first session management information to the LSMF network element through the first interface. Including: the RAN device selects a transport layer association from the allowed specific transport layer associations, and sends the first session management information to the LSMF network element through the selected transport layer association, which is not specifically limited in the embodiment of the present application.

Based on the method for reporting session management information provided by the embodiments of this application, since the RAN device can send the first session management information to the LSMF network element through the interface between the RAN device and the LSMF network element, that is, the first session management information is not A centralized network element (such as an AMF network element) is required, so the path for reporting the first session management information can be shortened, thereby solving the problem that the path for reporting the session management information is too long.

Wherein, the actions of the AMF network element or the RAN device in the above steps S1201 to S1207 can be executed by the processor 901 in the communication device 900 shown in FIG. 9 calling the application code stored in the memory 903, which is not done in this embodiment. Any restrictions.

Optionally, taking the communication system shown in FIG. 5 applied to the 5G network architecture in the non-roaming scenario shown in FIG. 6a or FIG. 6b as an example, as shown in FIG. 13, another method provided by this embodiment of the application is shown in FIG. A method for reporting session management information, the method for reporting session management information includes the following steps:

S1301 is the same as step S1301 in the embodiment shown in FIG. 13. For related descriptions, reference may be made to the embodiment shown in FIG. 13, which will not be repeated here.

In S1302, the AMF network element selects the LSMF network element.

Optionally, in this embodiment of the application, the AMF network element can be pre-configured with LSMF information, such as the identification and location information of the LSMF, and the AMF network element can select an LSMF network element closest to itself or the closest to the terminal device. LSMF network element. Of course, the AMF network element can also select the LSMF network element in other ways, which is not specifically limited in the embodiment of the present application.

Of course, in the embodiment of the present application, after the AMF network element selects the LSMF network element, the insertion process of the LSMF network element can also be triggered, and the related implementation can refer to the prior art, which will not be repeated here.

S1303. The AMF network element sends the LSMF network element identifier to the RAN device, and the RAN device receives the LSMF network element identifier from the AMF network element. The identifier of the LSMF network element indicates that the first session management information requires the RAN device to report to the LSMF network element through the first interface.

Optionally, in this embodiment of the application, if the first session management information is the session management information of the first QoS flow in the first PDU session, the AMF network element also needs to send the information of the first QoS flow to the RAN device. This unified description will not be repeated in the following.

Optionally, in this embodiment of the present application, the RAN device may create binding information associated with an NGAP user association and a specific transport layer for the terminal device. Among them, the NGAP user association is a logical association of user granularity between the RAN equipment and the LSMF network element, and the specific transport layer association is a physical association between the RAN equipment and the LSMF network element.

S1304. Optionally, the RAN device sends the identification of the RAN device to the LSMF network element, and the LSMF network element receives the identification of the RAN device from the RAN device. Among them, the identifier of the RAN device is used to identify the RAN device.

S1305 is the same as step S1207 in the embodiment shown in FIG. 12. For related descriptions, reference may be made to the embodiment shown in FIG. 12, which will not be repeated here.

Wherein, the actions of the AMF network element or the RAN device in the above steps S1301 to S1305 can be executed by the processor 901 in the communication device 900 shown in FIG. 9 calling the application code stored in the memory 903, which is not done in this embodiment. Any restrictions.

It should be noted that the above-mentioned embodiments shown in FIG. 10 to FIG. 13 are all based on the application of the communication system shown in FIG. 4 or FIG. 5 to the 5G network architecture in the non-roaming scenario shown in FIG. 6a or FIG. 6b as an example To illustrate, if the communication system shown in Fig. 4 or Fig. 5 is applied to the local grooming roaming 5G network architecture shown in Fig. 7a or Fig. 7b as an example, or the communication system shown in Fig. 4 or Fig. 5 is applied Taking the home routing roaming 5G network architecture shown in Figure 8a or Figure 8b as an example, the corresponding method for reporting session management information is similar to the method in the above embodiment, and only the relevant network elements need to be adaptively replaced. Yes, I won’t repeat them here.

It can be understood that, in the above embodiments, the methods and/or steps implemented by the session management network element can also be implemented by components (such as chips or circuits) that can be used for the session management network element; those implemented by the access network device The methods and/or steps can also be implemented by components (such as chips or circuits) that can be used for access network equipment; the methods and/or steps implemented by the mobility management network element can also be implemented by components that can be used for the mobility management network element ( For example, chip or circuit) implementation.

The foregoing mainly introduces the solution provided by the embodiment of the present application from the perspective of interaction between various network elements. Correspondingly, an embodiment of the present application also provides a communication device, and the communication device may be the session management network element in the foregoing method embodiment, or a device including the foregoing session management network element, or a component that can be used for the session management network element; Alternatively, the communication device may be the user plane network element in the foregoing method embodiment, or a device including the foregoing user plane network element, or a component that can be used for the user plane network element; or, the communication device may be the foregoing method embodiment The application network element in, or a device containing the above application network element, or a component that can be used for the application network element. It can be understood that, in order to realize the above-mentioned functions, the communication device includes hardware structures and/or software modules corresponding to various functions. Those skilled in the art should easily realize that in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

For example, taking the communication device as the session management network element in the foregoing method embodiment as an example, FIG. 14 shows a schematic structural diagram of a session management network element 140. The session management network element 140 includes a transceiver module 1401 and a processing module 1402. The transceiver module 1401 may also be referred to as a transceiver unit to implement a transceiver function, for example, it may be a transceiver circuit, transceiver, transceiver or communication interface.

The processing module 1402 is configured to determine that the first session management information needs to be reported by the access network device to the session management network element through the first interface, the first interface being the interface between the access network device and the session management network element; 1401, configured to send first indication information to an access network device, where the first indication information is used to indicate that the first session management information needs to be reported by the access network device to the session management network element through the first interface; the transceiver module 1401 is also used to Receive the first session management information from the access network device through the first interface.

In a possible implementation manner, the first session management information is session management information of the first QoS flow in the first PDU session.

Optionally, the processing module 1402 is specifically configured to: receive the policy information from the policy control network element through the transceiver module 1401, the policy information includes second indication information, and the second indication information is used to indicate that the session management information of the target service requires access to the network The device reports to the session management network element through the first interface, where the QoS flow in which the target service is located is the first QoS flow.

In another possible implementation manner, the first session management information is session management information of the first PDU session.

Optionally, the processing module 1402 is specifically configured to: determine that the session management information of the first PDU session needs to be accessed according to one or more of the local configuration, the DNN corresponding to the first PDU session, or the slice information corresponding to the first PDU session The network device reports to the session management network element through the first interface.

Optionally, the transceiver module 1401 is further configured to receive an identifier of the access network device from the access network device, and the identifier of the access network device is used to identify the access network device.

Among them, all relevant content of the steps involved in the above method embodiments can be cited in the functional description of the corresponding functional module, which will not be repeated here.

In this embodiment, the session management network element 140 is presented in the form of dividing various functional modules in an integrated manner. The "module" here may refer to a specific ASIC, a circuit, a processor and memory that executes one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the above-mentioned functions. In a simple embodiment, those skilled in the art can imagine that the session management network element 140 may take the form of the communication device 900 shown in FIG. 9.

For example, the processor 901 in the communication device 900 shown in FIG. 9 may invoke the computer execution instructions stored in the memory 903 to make the communication device 900 execute the method for reporting session management information in the foregoing method embodiment.

Specifically, the functions/implementation process of the transceiver module 1401 and the processing module 1402 in FIG. 14 may be implemented by the processor 901 in the communication device 900 shown in FIG. 9 calling the computer execution instructions stored in the memory 903. Alternatively, the function/implementation process of the processing module 1402 in FIG. 14 may be implemented by the processor 901 in the communication device 900 shown in FIG. 9 calling a computer execution instruction stored in the memory 903, and the function of the transceiver module 1401 in FIG. The implementation process can be implemented through the communication interface 904 in the communication device 900 shown in FIG. 9.

Since the session management network element 140 provided in this embodiment can perform the above-mentioned method of reporting session management information, the technical effects that can be obtained can refer to the above-mentioned method embodiment, and will not be repeated here.

Or, for example, taking the communication device as the access network device in the foregoing method embodiment as an example, FIG. 15 shows a schematic structural diagram of an access network device 150. The access network device 150 includes a receiving module 1501 and a sending module 1502. The receiving module 1501 may also be referred to as a receiving unit to implement a receiving function, for example, it may be a receiving circuit, a receiver, a receiver or a communication interface. The sending module 1502 may also be referred to as a sending unit to implement a sending function, for example, it may be a sending circuit, a transmitter, a transmitter, or a communication interface.

Wherein, the receiving module 1501 is configured to receive first indication information from the session management network element, and the first indication information is used to indicate that the first session management information needs to be reported to the session management network element by the access network device through the first interface. An interface is an interface between the access network device and the session management network element; the sending module 1502 is configured to send the first session management information to the session management network element through the first interface according to the first instruction information.

Optionally, the sending module 1502 is further configured to send an identification of the access network device to the session management network element, and the identification of the access network device is used to identify the access network device.

Optionally, as shown in FIG. 15, the access network device 150 further includes a processing module 1503; the sending module 1502 is configured to send the first session management information to the session management network element through the first interface according to the first indication information, including: After the processing module 1503 detects that the first session management information needs to be reported, it sends the first session management information to the session management network element through the first interface according to the first instruction information.

In this embodiment, the access network device 150 is presented in the form of dividing various functional modules in an integrated manner. The "module" here may refer to a specific ASIC, a circuit, a processor and memory that executes one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the above-mentioned functions. In a simple embodiment, those skilled in the art can imagine that the access network device 150 may take the form of the communication device 900 shown in FIG. 9.

Specifically, the functions/implementation process of the receiving module 1501, the sending module 1502, and the processing module 1503 in Fig. 15 can be implemented by the processor 901 in the communication device 900 shown in Fig. 9 calling the computer execution instructions stored in the memory 903. Alternatively, the function/implementation process of the processing module 1503 in FIG. 15 can be implemented by the processor 901 in the communication device 900 shown in FIG. 9 calling a computer execution instruction stored in the memory 903, and the receiving module 1501 and the sending module in FIG. The function/implementation process of the module 1502 can be implemented through the communication interface 904 in the communication device 900 shown in FIG. 9.

Since the access network device 150 provided in this embodiment can perform the above-mentioned method for reporting session management information, the technical effects that can be obtained can refer to the above-mentioned method embodiment, which will not be repeated here.

Or, for example, taking the communication device as the access network device in the foregoing method embodiment as an example, FIG. 16 shows a schematic structural diagram of an access network device 160. The access network device 160 includes a transceiver module 1601 and a processing module 1602. The transceiver module 1601 may also be referred to as a transceiver unit to implement a transceiver function, for example, it may be a transceiver circuit, transceiver, transceiver or communication interface.

The processing module 1602 is configured to determine that the first session management information needs to be reported by the access network device to the corresponding session management network element through the first interface, and the first interface is the connection between the access network device and the corresponding session management network element. Interface; the transceiver module 1601, configured to send the first session management information to the selected local session management network element through the first interface.

Optionally, the processing module 1602 is specifically configured to: receive the indication information from the mobility management network element through the transceiver module 1601, and the indication information is used to indicate that the first session management information requires the access network device to communicate to the corresponding session management network through the first interface. Yuan reported.

Optionally, the processing module 1602 is also used to select a local session management network element.

Optionally, the transceiver module 1601 is further configured to send identification information of the local session management network element to the mobility management network element, and the identification information of the local session management network element is used to trigger the insertion process of the local session management network element.

Optionally, the transceiver module 1601 is further configured to send an identification of the access network device to the local session management network element, and the identification of the access network device is used to identify the access network device.

Optionally, the processing module 1602 is also used to create binding information for the terminal device to associate the NGAP user with a specific transport layer, where the NGAP user association is the user granularity between the access network device and the local session management network element. Logical association, the specific transport layer association is the physical association between the access network device and the local session management network element.

Optionally, the transceiver module 1601 is configured to send the first session management information to the selected local session management network element through the first interface, including: after the processing module 1602 detects that the first session management information needs to be reported, pass the first session management information An interface sends the first session management information to the selected local session management network element.

In this embodiment, the access network device 160 is presented in the form of dividing various functional modules in an integrated manner. The "module" here may refer to a specific ASIC, a circuit, a processor and memory that executes one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the above-mentioned functions. In a simple embodiment, those skilled in the art can imagine that the access network device 160 may take the form of the communication device 900 shown in FIG. 9.

Specifically, the functions/implementation process of the transceiver module 1601 and the processing module 1602 in FIG. 16 may be implemented by the processor 901 in the communication device 900 shown in FIG. 9 calling the computer execution instructions stored in the memory 903. Alternatively, the function/implementation process of the processing module 1602 in FIG. 16 may be implemented by the processor 901 in the communication device 900 shown in FIG. 9 calling a computer execution instruction stored in the memory 903, and the function of the transceiver module 1601 in FIG. The implementation process can be implemented through the communication interface 904 in the communication device 900 shown in FIG. 9.

Since the access network device 160 provided in this embodiment can perform the above-mentioned method for reporting session management information, the technical effects that can be obtained can refer to the above-mentioned method embodiment, which will not be repeated here.

Or, for example, taking the communication device as the mobility management network element in the foregoing method embodiment as an example, FIG. 17 shows a schematic structural diagram of a mobility management network element 170. The mobility management network element 170 includes a transceiver module 1701 and a processing module 1702. The transceiving module 1701 may also be called a transceiving unit to implement a transceiving function, for example, it may be a transceiving circuit, a transceiver, a transceiver or a communication interface.

The processing module 1702 is configured to determine that the first session management information needs to be reported by the access network device to the corresponding session management network element through the first interface, and the first interface is the connection between the access network device and the corresponding session management network element. Interface; processing module 1702, also used to select local session management network element; transceiver module 1701, used to send the identification of the local session management network element to the access network device, the identification of the local session management network element is used to indicate the first session management The information needs to be reported by the access network device to the local session management network element through the first interface.

Optionally, the processing module 1702 is configured to determine that the first session management information needs to be reported by the access network device to the corresponding session management network element through the first interface, including: receiving an instruction from the first session management network element through the transceiver module Information, the indication information is used to indicate that the first session management information needs to be reported by the access network device to the corresponding session management network element through the first interface.

In this embodiment, the mobility management network element 170 is presented in the form of dividing various functional modules in an integrated manner. The "module" here may refer to a specific ASIC, a circuit, a processor and memory that executes one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the above-mentioned functions. In a simple embodiment, those skilled in the art can imagine that the mobility management network element 170 may take the form of the communication device 900 shown in FIG. 9.

Specifically, the functions/implementation process of the transceiver module 1701 and the processing module 1702 in FIG. 17 may be implemented by the processor 901 in the communication device 900 shown in FIG. 9 calling a computer execution instruction stored in the memory 903. Alternatively, the function/implementation process of the processing module 1702 in FIG. 17 can be implemented by the processor 901 in the communication device 900 shown in FIG. 9 calling a computer execution instruction stored in the memory 903, and the function of the transceiver module 1701 in FIG. The implementation process can be implemented through the communication interface 904 in the communication device 900 shown in FIG. 9.

Since the mobility management network element 170 provided in this embodiment can perform the above-mentioned method of reporting session management information, the technical effects that can be obtained can refer to the above-mentioned method embodiment, and will not be repeated here.

It should be noted that one or more of the above modules or units can be implemented by software, hardware or a combination of both. When any of the above modules or units are implemented in software, the software exists in the form of computer program instructions and is stored in the memory, and the processor can be used to execute the program instructions and implement the above method flow. The processor can be built in SoC (system on chip) or ASIC, or it can be an independent semiconductor chip. The processor's internal processing is used to execute software instructions to perform calculations or processing, and may further include necessary hardware accelerators, such as field programmable gate array (FPGA), PLD (programmable logic device) , Or a logic circuit that implements dedicated logic operations.

When the above modules or units are implemented in hardware, the hardware can be a CPU, a microprocessor, a digital signal processing (digital signal processing, DSP) chip, a microcontroller unit (MCU), an artificial intelligence processor, an ASIC, Any one or any combination of SoC, FPGA, PLD, dedicated digital circuit, hardware accelerator, or non-integrated discrete device can run necessary software or do not rely on software to perform the above method flow.

Optionally, an embodiment of the present application further provides a communication device (for example, the communication device may be a chip or a chip system), and the communication device includes a processor for implementing the method in any of the foregoing method embodiments. In a possible design, the communication device further includes a memory. The memory is used to store necessary program instructions and data, and the processor can call the program code stored in the memory to instruct the communication device to execute the method in any of the foregoing method embodiments. Of course, the memory may not be in the communication device. When the communication device is a chip system, it may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiment of the present application.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using a software program, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server, or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer, or may include one or more data storage devices such as servers and data centers that can be integrated with the medium. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

Although this application has been described in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art can understand and understand by viewing the drawings, the disclosure, and the appended claims in the process of implementing the claimed application. Implement other changes of the disclosed embodiment. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "one" does not exclude a plurality. A single processor or other unit may implement several functions listed in the claims. Certain measures are described in mutually different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

Although the application has been described in combination with specific features and embodiments, it is obvious that various modifications and combinations can be made without departing from the spirit and scope of the application. Correspondingly, the specification and drawings are merely exemplary descriptions of the application as defined by the appended claims, and are deemed to cover any and all modifications, changes, combinations or equivalents within the scope of the application. Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these modifications and variations.

Claims

A method for reporting session management information, characterized in that the method includes:

The session management network element determines that the first session management information requires the access network device to report to the session management network element through a first interface, and the first interface is the connection between the access network device and the session management network element interface;

The session management network element sends first indication information to the access network device, where the first indication information is used to indicate that the first session management information requires the access network device to communicate to the access network device through the first interface. The said session management network element reports;

The session management network element receives the first session management information from the access network device through the first interface.
The method according to claim 1, wherein the first session management information is session management information of a first quality of service QoS flow in a first packet data unit PDU session.
The method according to claim 2, wherein the determination by the session management network element that the first session management information requires an access network device to report to the session management network element through the first interface comprises:

The session management network element receives policy information from the policy control network element, where the policy information includes second indication information, and the second indication information is used to indicate that the session management information of the target service requires the access network device to pass all the information. The first interface reports to the session management network element, where the QoS flow in which the target service is located is the first QoS flow.
The method according to claim 2 or 3, wherein the first indication information includes an identifier of the session management network element and first information, and the first information is used to indicate the status of the first QoS flow The session management information requires the access network device to report to the corresponding session management network element through the first interface.
The method according to claim 1, wherein the first session management information is session management information of the first PDU session.
The method according to claim 5, wherein the determination by the session management network element that the first session management information requires an access network device to report to the session management network element through the first interface comprises:

The session management network element determines the session management of the first PDU session according to one or more of the local configuration, the data network name DNN corresponding to the first PDU session, or the slice information corresponding to the first PDU session The information requires the access network device to report to the session management network element through the first interface.
The method according to claim 5 or 6, wherein the first indication information includes an identifier of the session management network element.
The method according to any one of claims 1-7, wherein the method further comprises:

The session management network element receives the identifier of the access network device from the access network device, and the identifier of the access network device is used to identify the access network device.
A method for reporting session management information, characterized in that the method includes:

The access network device receives first indication information from the session management network element, where the first indication information is used to indicate that the first session management information requires the access network device to report to the session management network element through the first interface , The first interface is an interface between the access network device and the session management network element;

The access network device sends the first session management information to the session management network element through the first interface according to the first indication information.
The method according to claim 9, wherein the first session management information is session management information of the first quality of service QoS flow in the first packet data unit PDU session.
The method according to claim 10, wherein the first indication information includes an identifier of the session management network element and first information, and the first information is used to indicate session management of the first QoS flow The information requires the access network device to report to the corresponding session management network element through the first interface.
The method according to claim 9, wherein the first session management information is session management information of the first PDU session.
The method according to claim 9, wherein the first indication information includes an identifier of the session management network element.
The method according to any one of claims 9-13, wherein the method further comprises:

The access network device sends an identifier of the access network device to the session management network element, where the identifier of the access network device is used to identify the access network device.
The method according to any one of claims 9-14, wherein the access network device sends the first information to the session management network element through the first interface according to the first indication information. Session management information, including:

After detecting that the first session management information needs to be reported, the access network device sends the first session management information to the session management network element through the first interface according to the first indication information.
A method for reporting session management information, characterized in that the method includes:

The access network device determines that the first session management information requires the access network device to report to the corresponding session management network element through a first interface, where the first interface is the access network device and the corresponding session management network Interface between elements;

The access network device sends the first session management information to the selected local session management network element through the first interface.
The method according to claim 16, wherein the determining by the access network device that the first session management information requires the access network device to report to the corresponding session management network element through the first interface comprises:

The access network device receives instruction information from a mobility management network element, where the instruction information is used to indicate that the first session management information requires the access network device to communicate to a corresponding session management network element through the first interface. Reported.
The method according to claim 16 or 17, wherein the method further comprises:

The access network device selects the local session management network element.
The method according to claim 18, wherein the method further comprises:

The access network device sends the identification information of the local session management network element to the mobility management network element, where the identification information of the local session management network element is used to trigger the insertion process of the local session management network element.
The method according to claim 19, wherein the identification information of the local session management network element includes the identification of the local session management network element;

Alternatively, the identification information of the local session management network element includes binding information associated with a next-generation application protocol NGAP user association and a specific transport layer, where the NGAP user association is the access network device and the local session management A logical association of user granularity between network elements, and the specific transport layer association is a physical association between the access network device and the local session management network element.
The method according to claim 17, wherein the indication information includes an identifier of the local session management network element selected by the mobility management network element.
The method according to any one of claims 16-21, wherein the first session management information is session management information of a first quality of service QoS flow in a first packet data unit PDU session;

Alternatively, the first session management information is session management information of the first PDU session.
The method according to any one of claims 16-22, wherein the method further comprises:

The access network device sends an identifier of the access network device to the local session management network element, where the identifier of the access network device is used to identify the access network device.
The method according to any one of claims 16-22, wherein the method further comprises:

The access network device creates binding information of NGAP user association and specific transport layer association for the terminal device, where the NGAP user association is the user granularity between the access network device and the local session management network element The specific transport layer association is a physical association between the access network device and the local session management network element.
The method according to any one of claims 16-24, wherein the access network device sending the first session management information to the selected local session management network element through the first interface comprises:

After detecting that the first session management information needs to be reported, the access network device sends the first session management information to the selected local session management network element through the first interface.
A method for reporting session management information, characterized in that the method includes:

The mobility management network element determines that the first session management information needs to be reported by the access network device to the corresponding session management network element through the first interface, where the first interface is between the access network device and the corresponding session management network element The interface between

The mobility management network element selects a local session management network element;

The mobility management network element sends an identifier of the local session management network element to the access network device, where the identifier of the local session management network element is used to indicate that the first session management information requires the access network device Reporting to the local session management network element through the first interface.
The method according to claim 26, wherein the determination by the mobility management network element that the first session management information requires the access network device to report to the corresponding session management network element through the first interface comprises:

The mobility management network element receives instruction information from a first session management network element, where the instruction information is used to indicate that the first session management information requires the access network device to manage the corresponding session through the first interface The network element reports.
The method according to claim 26 or 27, wherein the first session management information is session management information of a first quality of service QoS flow in a first packet data unit PDU session;

Alternatively, the first session management information is session management information of the first PDU session.
A session management network element, characterized in that, the session management network element includes: a processing module and a transceiver module;

The processing module is configured to determine that the first session management information requires an access network device to report to the session management network element through a first interface, where the first interface is the access network device and the session management network element between interface;

The transceiver module is configured to send first indication information to the access network device, where the first indication information is used to indicate that the first session management information requires the access network device to communicate to the access network device through the first interface. The session management network element reports;

The transceiver module is further configured to receive the first session management information from the access network device through the first interface.
The session management network element according to claim 29, wherein the first session management information is session management information of a first quality of service QoS flow in a first packet data unit PDU session.
The session management network element according to claim 30, wherein the processing module is specifically configured to:

The policy information from the policy control network element is received through the transceiver module, the policy information includes second indication information, and the second indication information is used to indicate that the session management information of the target service requires the access network device to pass the The first interface reports to the session management network element, where the QoS flow in which the target service is located is the first QoS flow.
The session management network element according to claim 29, wherein the first session management information is session management information of the first PDU session.
The session management network element according to claim 32, wherein the processing module is specifically configured to:

According to one or more of the local configuration, the data network name DNN corresponding to the first PDU session, or the slice information corresponding to the first PDU session, it is determined that the session management information of the first PDU session requires the access The network device reports to the session management network element through the first interface.
The session management network element according to any one of claims 29-33, wherein the transceiver module is further configured to receive an identifier of the access network device from the access network device, and the connection The identifier of the network access device is used to identify the access network device.
An access network device, characterized in that the access network device includes: a receiving module and a sending module;

The receiving module is configured to receive first indication information from a session management network element, where the first indication information is used to indicate that the first session management information requires that the access network device needs to manage the session through a first interface The network element reports that the first interface is the interface between the access network device and the session management network element;

The sending module is configured to send the first session management information to the session management network element through the first interface according to the first instruction information.
The access network device according to claim 35, wherein the sending module is further configured to send an identification of the access network device to the session management network element, and the identification of the access network device is used To identify the access network device.
The access network device according to claim 35 or 36, wherein the access network device further comprises a processing module;

The sending module is configured to send the first session management information to the session management network element through the first interface according to the first instruction information, including: being configured to detect the first session management information in the processing module After a piece of session management information needs to be reported, the first session management information is sent to the session management network element through the first interface according to the first indication information.
An access network device, characterized in that, the access network device includes: a processing module and a transceiver module;

The processing module is configured to determine that the first session management information requires the access network device to report to the corresponding session management network element through a first interface, and the first interface is the access network device and the corresponding Interface between session management network elements;

The transceiver module is configured to send the first session management information to the selected local session management network element through the first interface.
The access network device according to claim 38, wherein the processing module is specifically configured to:

Receive instruction information from a mobility management network element through the transceiver module, where the instruction information is used to indicate that the first session management information requires the access network device to report to the corresponding session management network element through the first interface .
The access network device according to claim 38 or 39, wherein the processing module is further configured to select the local session management network element.
The access network device according to claim 40, wherein the transceiver module is further configured to send identification information of the local session management network element to the mobility management network element, and the identification of the local session management network element The information is used to trigger the insertion process of the local session management network element.
The access network device according to any one of claims 38-41, wherein the transceiver module is further configured to send an identifier of the access network device to the local session management network element, and the access network device The identifier of the network access device is used to identify the access network device.
The access network device according to any one of claims 38-41, wherein the processing module is further configured to create binding information associated with an NGAP user association and a specific transport layer for the terminal device, wherein the NGAP user association is a logical association of user granularity between the access network device and the local session management network element, and the specific transport layer association is between the access network device and the local session management network element Physical connection.
The access network device according to any one of claims 38-43, wherein the transceiver module is configured to send the first session management information to a selected local session management network element through the first interface , Including: after the processing module detects that the first session management information needs to be reported, sending the first session management information to the selected local session management network element through the first interface.
A mobility management network element, characterized in that the mobility management network element includes: a processing module and a transceiver module;

The processing module is configured to determine that the first session management information requires the access network device to report to the corresponding session management network element through a first interface, and the first interface is the access network device and the corresponding session management Interface between network elements;

The processing module is also used to select a local session management network element;

The transceiver module is configured to send an identifier of the local session management network element to the access network device, and the identifier of the local session management network element is used to indicate that the first session management information requires the access network The device reports to the local session management network element through the first interface.
The mobility management network element according to claim 45, wherein the processing module is configured to determine that the first session management information needs to be reported by the access network device to the corresponding session management network element through the first interface, including: Receive instruction information from the first session management network element through the transceiver module, where the instruction information is used to indicate that the first session management information requires the access network device to communicate to the corresponding session management network through the first interface. Yuan reported.
A communication system, characterized in that the communication system comprises the session management network element according to any one of claims 29-34 and the access network device according to any one of claims 35-37.
A communication system, characterized in that the communication system includes an access network device and a local session management network element;

The access network device is configured to determine that the first session management information requires the access network device to report to the corresponding session management network element through a first interface, and the first interface is the access network device and the Interface between corresponding session management network elements;

The access network device is further configured to send the first session management information to the selected local session management network element through the first interface;

The local session management network element is configured to receive the first session management information from the access network device through the first interface.
The communication system according to claim 48, wherein the communication system further comprises a mobility management network element;

The mobility management network element is configured to send third indication information to the access network device, where the third indication information is used to indicate that the first session management information requires the access network device to pass the first The interface reports to the corresponding session management network element;

The access network device is configured to determine that the first session management information requires the access network device to report to the corresponding session management network element through a first interface, including: being configured to receive the information from the mobility management network element The third instruction information.
A processing device, characterized in that it comprises:

Memory, used to store computer programs;

A processor, configured to call and run the computer program from the memory to execute any one of claims 1-8, or any one of claims 9-15, any one of 16-25, or any one of claims 26-28 The method for reporting session management information described in item.
A processor, characterized in that it is configured to execute the report session management according to any one of claims 1-8, or any one of claims 9-15, any one of 16-25, or any one of claims 26-28 Information method.
A chip system, characterized in that it includes:

Memory, used to store computer programs;

The processor is configured to call and run the computer program from the memory, so that the device installed with the chip system executes any one of claims 1-8, or any one of claims 9-15, and any one of 16-25 Item, or the method for reporting session management information described in any of 26-28.
A computer-readable storage medium, characterized by comprising a computer program, which when running on a computer, causes the computer to execute any one of claims 1-8, or any one of claims 9-15, 16-25 Any item, or the method for reporting session management information as described in any item 26-28.
A computer program product, characterized in that, the computer program product comprises a computer program, when the computer program is run on a computer, the computer is caused to execute any one of claims 1-8, or any one of claims 9-15 , Any one of 16-25, or any one of 26-28 methods for reporting session management information.
A device for executing the method for reporting session management information according to any one of claims 1-8, or any one of claims 9-15, any one of 16-25, or any one of claims 26-28.