CN115104326A

CN115104326A - Connection establishing method, device, equipment and storage medium

Info

Publication number: CN115104326A
Application number: CN202080096705.1A
Authority: CN
Inventors: 杨皓睿
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2022-09-23
Anticipated expiration: 2040-04-17
Also published as: WO2021208059A1; CN115104326B

Abstract

The application discloses a connection establishing method, a device, equipment and a storage medium, and belongs to the technical field of communication. The method comprises the following steps: the terminal equipment determines the AC corresponding to the MBS service from the AC configuration information; the access network equipment determines an AC corresponding to the MBS service from the AC configuration information; the access network equipment sends a system broadcast message; the terminal equipment determines that the AC corresponding to the MBS service meets the access condition of the access network equipment, and sends a connection establishment request to the access network equipment. The technical scheme provided by the embodiment of the application realizes the establishment of RRC connection between the terminal equipment and the access network equipment aiming at MBS service, expands the service types which can be provided by the access network equipment and enriches the service functions which can be used by the terminal equipment.

Description

Connection establishing method, device, equipment and storage medium

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a storage medium for establishing a connection.

Background

With the rapid development of network communication technology, the demand of people for mobile communication is no longer only satisfied with telephone and messaging services, and a large number of multimedia services are emerging.

Some multimedia application services require that multiple UEs (User equipments) can receive the same data at the same time, such as video on demand, tv broadcast, internet education, vehicle communication, etc. Compared with general data, the mobile multimedia services have the characteristics of large data volume, long duration and the like. In order to effectively utilize mobile network resources, a UE is better served, and thus, an MBS (Multicast Broadcast Service) Service is generated. MBS service refers to the wireless network sending the same information content to multiple (i.e. multicast) or all (i.e. broadcast) UEs at the air interface point. It can realize network resource sharing, improve the utilization rate of network resources, especially air interface resources, and efficiently provide high-speed and stable multimedia services for users.

However, for network access control for MBS services, further discussion of research is needed.

Disclosure of Invention

The embodiment of the application provides a connection establishing method, a device, equipment and a storage medium. The technical scheme is as follows:

in one aspect, an embodiment of the present application provides a connection establishment method, which is applied to a terminal device, and the method includes:

determining an AC corresponding to the MBS service from AC (Access Categories, Access types) configuration information; the AC configuration information comprises a corresponding relation between at least one group of services and the AC;

and determining that the AC corresponding to the MBS service meets the access condition of the access network equipment, and sending a connection establishment request to the access network equipment.

In another aspect, an embodiment of the present application provides a connection establishment method, which is applied to an access network device, and includes:

determining an AC corresponding to the MBS service from the AC configuration information; wherein, the AC configuration information comprises the corresponding relation between at least one group of services and the AC;

sending a system broadcast message, wherein the system broadcast message comprises an access condition to be met by an AC (access controller) corresponding to the MBS service;

and receiving a connection establishment request from the terminal equipment, wherein the connection establishment request is sent under the condition that the AC corresponding to the MBS service meets the access condition.

In another aspect, an embodiment of the present application provides a session request method, which is applied to a terminal device, and the method includes:

sending a session management request related to the MBS service to core network equipment;

receiving a reject message from the core network device for the session management request, wherein the reject message includes a BO Timer (Back-Off Timer) for the MBS service.

In another aspect, an embodiment of the present application provides a session response method, which is applied to a core network device, and the method includes:

receiving a session management request related to MBS service from terminal equipment;

and sending a rejection message aiming at the session management request to the terminal equipment, wherein the rejection message comprises a BO timer aiming at the MBS service.

In a further aspect, an embodiment of the present application provides a connection establishing apparatus, which is applied to a terminal device, where the apparatus includes:

the type determining module is used for determining the AC corresponding to the MBS service from the AC configuration information; wherein, the AC configuration information comprises the corresponding relation between at least one group of services and the AC;

and the request sending module is used for determining that the AC corresponding to the MBS service meets the access condition of the access network equipment and sending a connection establishment request to the access network equipment.

In a further aspect, an embodiment of the present application provides a connection establishment apparatus, which is applied to an access network device, where the apparatus includes:

a system message sending module, configured to send a system broadcast message, where the system broadcast message includes an access condition that an AC corresponding to the MBS service needs to meet;

a request receiving module, configured to receive a connection establishment request from the terminal device, where the connection establishment request is sent when an AC corresponding to the MBS service meets the access condition.

In a further aspect, an embodiment of the present application provides a session request apparatus, which is applied to a terminal device, where the apparatus includes:

a request sending module, configured to send a session management request related to an MBS service to a core network device;

a message receiving module, configured to receive a reject message from the core network device for the session management request, where the reject message includes a BO timer for the MBS service.

In a further aspect, an embodiment of the present application provides a session response apparatus, which is applied to a core network device, and the apparatus includes:

a request receiving module, configured to receive a session management request related to an MBS service from a terminal device;

a message sending module, configured to send a rejection message for the session management request to the terminal device, where the rejection message includes a BO timer for the MBS service.

In a further aspect, an embodiment of the present application provides a terminal device, where the terminal device includes: a processor, and a transceiver coupled to the processor; wherein:

the processor is used for determining an AC corresponding to the MBS service from the AC configuration information; wherein, the AC configuration information comprises the corresponding relation between at least one group of services and the AC;

and the transceiver is used for determining that the AC corresponding to the MBS service meets the access condition of the access network equipment and sending a connection establishment request to the access network equipment.

In another aspect, an embodiment of the present application provides an access network device, where the access network device includes: a processor, and a transceiver coupled to the processor; wherein:

the transceiver is used for sending system broadcast messages, and the system broadcast messages comprise access conditions to be met by the AC corresponding to the MBS service;

the transceiver is further configured to receive a connection establishment request from the terminal device, where the connection establishment request is sent when the AC corresponding to the MBS service satisfies the access condition.

In another aspect, an embodiment of the present application provides a terminal device, where the terminal device includes: a processor, and a transceiver coupled to the processor; wherein:

the transceiver is used for sending a session management request related to the MBS service to the core network equipment;

the transceiver is further configured to receive a reject message from the core network device for the session management request, where the reject message includes a BO timer for the MBS service.

In a further aspect, an embodiment of the present application provides a core network device, where the core network device includes: a processor, and a transceiver coupled to the processor; wherein:

the transceiver is used for receiving a session management request related to the MBS service from the terminal equipment;

the transceiver is further configured to send a reject message for the session management request to the terminal device, where the reject message includes a BO timer for the MBS service.

In a further aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used for being executed by a processor of a terminal device to implement the method for establishing a connection on the terminal device side.

In a further aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used for being executed by a processor of an access network device to implement the method for establishing a connection on an access network device side.

In a further aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used for being executed by a processor of a terminal device to implement the session request method on the terminal device side.

In another aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used for being executed by a processor of a core network device, so as to implement the session response method on the core network device side.

In another aspect, an embodiment of the present application provides a chip, where the chip includes a programmable logic circuit and/or a program instruction, and when the chip runs on a terminal device, the chip is configured to implement the method for establishing a connection on the terminal device side.

In a further aspect, an embodiment of the present application provides a chip, where the chip includes a programmable logic circuit and/or program instructions, and when the chip runs on an access network device, the chip is configured to implement the method for establishing a connection on the access network device side as described above.

In a further aspect, an embodiment of the present application provides a chip, where the chip includes a programmable logic circuit and/or program instructions, and when the chip runs on a terminal device, the chip is configured to implement the session request method on the terminal device side as described above.

In a further aspect, an embodiment of the present application provides a chip, where the chip includes a programmable logic circuit and/or program instructions, and when the chip runs on a core network device, the chip is configured to implement the above session response method on the core network device side.

The technical scheme provided by the embodiment of the application can have the following beneficial effects:

by adding the corresponding relation between the MBS service and the AC in the AC configuration information, the terminal equipment and the access network equipment can determine the AC aiming at the MBS service, and then the access network equipment can set the access condition aiming at the AC and broadcast the access condition to the terminal equipment, and the terminal equipment sends a connection establishment request to the access network equipment when the AC meets the access condition of the access network equipment, thereby realizing the establishment of the connection between the terminal equipment and the access network equipment aiming at the MBS service, expanding the service types which can be provided by the access network equipment and enriching the service functions which can be used by the terminal equipment.

Drawings

FIG. 1 is a schematic diagram of a system architecture provided by one embodiment of the present application;

fig. 2 is a schematic diagram of a 5GS system architecture provided by an embodiment of the present application;

fig. 3 is a flowchart of a connection establishment method according to an embodiment of the present application;

fig. 4 is a flowchart of a connection establishment method according to another embodiment of the present application;

FIG. 5 is a flow chart of a session management method provided by an embodiment of the present application;

fig. 6 is a block diagram of a connection establishment apparatus according to an embodiment of the present application;

fig. 7 is a block diagram of a connection establishment apparatus according to another embodiment of the present application;

fig. 8 is a block diagram of a connection establishing apparatus according to still another embodiment of the present application;

fig. 9 is a block diagram of a connection establishing apparatus according to another embodiment of the present application;

FIG. 10 is a block diagram of a session request device provided by an embodiment of the present application;

fig. 11 is a block diagram of a session response device according to an embodiment of the present application;

fig. 12 is a block diagram of a terminal device according to an embodiment of the present application;

fig. 13 is a block diagram illustrating an architecture of an access network device according to an embodiment of the present application;

fig. 14 is a block diagram of a core network device according to an embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, the following detailed description of the embodiments of the present application will be made with reference to the accompanying drawings.

The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not constitute a limitation to the technical solution provided in the embodiment of the present application, and it can be known by those skilled in the art that the technical solution provided in the embodiment of the present application is also applicable to similar technical problems along with the evolution of the network architecture and the appearance of a new service scenario.

The technical scheme provided by the embodiment of the application can be applied to various communication systems, such as: a GSM (Global System for Mobile communications) System, a CDMA (Code Division Multiple Access) System, an ECDMA (Wideband Code Division Multiple Access) System, a GPRS (General Packet Radio Service), an LTE (Long Term Evolution ) System, an FDD (Radio Division Duplex, LTE Duplex) System, a TDD (Time Division Duplex, LTE Time Division Duplex) System, an UMTS (Universal Mobile telecommunications System ), a WiMAX (world Interoperability for Microwave Access) Communication System, a 5GS or New Radio (NR) System, or other Evolution systems.

Referring to fig. 1, a schematic diagram of a system architecture of a communication system provided in an embodiment of the present application is shown. As shown in fig. 1, the system architecture 100 may include: a terminal device 10, an access network device 20 and a core network device 30.

Terminal equipment 10 may refer to a UE, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a wireless communication device, a user agent, or a user device. Alternatively, the terminal device may be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA (Personal digital Assistant), a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in 5GS (5th Generation System, fifth Generation mobile communication System) or a terminal device in a PLMN (Pub1ic Land mobile 1e Network) evolved in the future, and the like, which is not limited in the embodiment of the present application.

The access network device 20 is a device deployed in an access network to provide a wireless communication function for the terminal device 10. The access network equipment 20 may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different radio access technologies, the names of devices with access network device functions may differ, for example in a 5G NR system, called gnnodeb or gNB. As communication technology evolves, the name "access network equipment" may change. For convenience of description, in the embodiment of the present application, the above-mentioned apparatuses providing the terminal device 10 with the wireless communication function are collectively referred to as an access network device.

The core network device 30 refers to a device that can provide functions such as session management, mobility relationship, policy management, security authentication, and the like for the terminal device 10. In this embodiment, the core network device 30 may include a first core network device and a second core network device, where the first core network device is responsible for access management and mobility management of the terminal device 10, and the second core network device is responsible for session management of the terminal device 10. Illustratively, when the terminal device 10 needs to perform an operation related to a PDU (Protocol Data Unit) session, the terminal device 10 first sends a connection request to a first core network device in the core network devices 30 through the access network device 20 to establish a connection with the core network device 30, and then sends a session management request to a second core network device in the core network devices 30 through the access network device 20 to perform an operation related to the PDU session. Alternatively, in the 5GS system, the first Core network may be implemented as an AMF (Core Access and Mobility Management Function), and the second Core network device may be implemented as an SMF (Session Management Function).

Fig. 2 shows a schematic diagram of a system architecture of the 5GS system provided by the embodiment of the present application. As shown in fig. 2, the system architecture 200 may include: UE, RAN (Radio Access Network), Core (Core Network), and DN. The UE, RAN and Core are the main components constituting the architecture, and they may be logically divided into two parts, namely a user plane and a control plane, where the control plane is responsible for management of the mobile network and the user plane is responsible for transmission of service data. In the figure, the NG2 reference point is located between the RAN control plane and the Core control plane, the NG3 reference point is located between the RAN user plane and the Core user plane, and the NG6 reference point is located between the Core user plane and the data network.

The UE: the method is an entrance for interaction between a mobile user and a network, can provide basic computing capacity and storage capacity, displays a business window for the user, and accepts operation input of the user. The UE establishes signal connection and data connection with the RAN using a next generation air interface technology, thereby transmitting control signals and service data to the mobile network.

RAN: similar to a base station in a traditional network, the base station is deployed at a position close to the UE, provides a network access function for authorized users in a specific area, and can transmit user data by using transmission tunnels with different qualities according to the level of the users, the service requirements and the like. RAN can manage its own resources, make reasonable use of the resources, provide access services for UE as required, and forward control signals and user data between UE and a core network.

Core: and the system is responsible for maintaining subscription data of the mobile network, managing network elements of the mobile network, and providing functions of session management, mobility management, policy management, security authentication and the like for the UE. When the UE is attached, network access authentication is provided for the UE; when the UE has a service request, network resources are distributed to the UE; updating network resources for the UE when the UE moves; when the UE is idle, a fast recovery mechanism is provided for the UE: when the UE is detached, releasing network resources for the UE; when the UE has service data, providing a data routing function for the UE, such as forwarding uplink data to DN: or receiving UE downlink data from the DN, forwarding the UE downlink data to the RAN, and sending the UE downlink data to the RAN.

DN: the data network is a data network providing service for users, and generally, a client is located in a UE, and a server is located in the data network. The data Network may be a private Network, such as a local area Network, an external Network that is not controlled by an operator, such as the Internet, or a private Network that is co-deployed by an operator, such as in order to configure an IMS (IP Multimedia Network Subsystem) service.

In the embodiment of the present application, the terminal device may access a Radio access network provided by the communication system, and establish an RRC (Radio Resource Control) connection with the access network device; it is also possible to access a core network provided by the communication system and request session management from the core network device.

In an example, when an RRC connection is established between a terminal device and an access network device, an AC to be used needs to be determined from predefined configuration information according to a service type that triggers connection establishment itself, then an access condition corresponding to the AC is obtained from a system message, and when the access condition is satisfied, an RRC connection establishment request is sent to the access network device. However, in the related art, the predefined configuration information does not include the AC adopted by the terminal device for the MBS service, and thus the network cannot perform access control on the terminal device for the MBS service.

In another example, when a terminal device requests a core Network device to perform session management, a session management request needs to be sent to the core Network device, and after receiving the session management request, if the session management request of the terminal device is rejected, the core Network device sends a rejection message to the terminal device, where the rejection message includes a BO timer associated with DNN (Data Network Name) and/or S-NSSAI (Single-Network Slice Selection Assistance Information) of a session, and the terminal device does not send a session management request for a session corresponding to the DNN and/or S-NSSAI to the core Network device any more within a timing duration of the BO timer according to the rejection message. However, the session for the MBS service may not be associated with a special DNN and/or S-NSSAI, or because the service scene division of the MBS service is more exquisite, it cannot be distinguished by the special DNN and/or S-NSSAI, so the BO timer cannot be associated with the MBS service, and the network cannot prevent the terminal device from initiating access and session management for the rejected MBS service again.

Based on this, embodiments of the present application provide a connection establishment method and a session management method, which may be used to solve the above problem. The technical solution of the present application will be described below with reference to several exemplary embodiments.

First, a description is given of a procedure for accessing a radio access network for MBS service.

Referring to fig. 3, a flowchart of a connection establishment method provided in an embodiment of the present application is shown, where the method may be applied to the system architecture shown in fig. 1 or fig. 2, and the method may include the following steps:

step 310, the terminal device determines the AC corresponding to the MBS service from the AC configuration information.

The AC configuration information refers to information obtained by configuring an AC, and the determination manner of the AC configuration information is not limited in the embodiment of the present application, and optionally, the AC configuration information is predefined by a communication protocol. In the embodiment of the application, the AC configuration information includes a correspondence between at least one group of services or flows and the AC, so that the terminal device may determine, according to a service to be established, an AC corresponding to the service or the flow from the AC configuration information. Optionally, the correspondence is expressed in the form of a table. The embodiment of the present application does not limit the specific content of the corresponding relationship, and optionally, the corresponding relationship includes: the service information comprises at least one group of services, such as MBS service, automation service, emergency service, multimedia telephone service and the like, the AC information is AC corresponding to at least one group of services, optionally, the AC is represented in a numerical value form, for example, the AC corresponding to the emergency service is 2, and the AC corresponding to the multimedia telephone service is 9; optionally, the correspondence further includes condition information, where the condition information is a condition that needs to be satisfied when at least one group of services corresponds to the AC, for example, a condition that the service needs to be satisfied when the emergency service corresponds to 2 is an emergency meeting.

The embodiment of the application does not limit the determination subject of the ACs corresponding to the group of services, and optionally, the ACs corresponding to the group of services are predefined by a communication protocol; or, alternatively, by the operator. The corresponding relation between the service and the AC can be set more flexibly by defining the AC corresponding to a group of services by the operator. The embodiment of the present application does not limit the specific correspondence between a group of services and the AC, and optionally, a group of services corresponds to an AC, for example, a multimedia telephony service corresponds to 9; alternatively, a group of services corresponds to multiple ACs, such as multimedia telephony services 34, 44, and 60. By corresponding one AC to one group of services, the problem that more time cost is needed for configuring a plurality of corresponding ACs for one group of services can be avoided, and AC resources are saved; by corresponding a group of services to a plurality of ACs, the ACs corresponding to the service scenes can be configured aiming at the service scenes in the group of services, so that the corresponding relationship is more finely configured, and the conflict of the service scenes in the group of services can be avoided. For the MBS service, the embodiments of the present application provide the following two configuration modes for the determination main body of the AC corresponding to the MBS service and the correspondence between the MBS service and the AC.

In one example, the AC corresponding to the MBS service is a dedicated value predefined in the communication protocol. That is, the MBS service corresponds to a dedicated AC, and for each service scenario in the MBS service, the ACs determined from the AC configuration information are all the dedicated values. Alternatively, the specific value is 10. The specific service scenario of the MBS service is not limited in the embodiment of the present application, for example, the service scenario includes that the terminal device receives a traffic signal of the internet of vehicles, connection management of mobility management initiated by the terminal device, NAS signaling transmission of mobility management initiated by the terminal device, the terminal device establishes a multicast session, and the terminal device receives earthquake early warning information. Optionally, when each service scenario corresponds to the dedicated numerical value, it needs to be satisfied that the service scenario is used for the MBS service. Based on this, the following table one shows the contents for the MBS service in the AC configuration information.

table-AC configuration information

Wherein, Rule # (serial number) represents MBS service and its corresponding AC position in AC configuration information; type of access attempt Type, that is, representing each service scenario, for example, it includes UE NAS initial 5GMM connection management or 5GMM NAS transport protocol (NAS signaling for connection management or mobility management initiated by the terminal device), it should be understood that the application scenario shown in the above table one is only an example, and other application scenarios may also be included in the actual application, for example, the terminal device establishes a multicast session; requirements to be met, that is, conditions that each service scenario corresponds to The AC and needs to be met, for example, it may be The access attack for MBS (access attempt is used for MBS), that is, The service scenario is used for MBS; AC is a value corresponding to each service scenario, which may be a dedicated value 10 predefined in the communication protocol, for example.

In another example, the AC corresponding to the MBS service is defined by the operator. That is, the operator may freely define the AC corresponding to the MBS service within its definable value range. The embodiment of the present application does not limit the specific manner in which the Operator defines the AC corresponding to the MBS service, and optionally, in a numerical range (Operator-defined AC) corresponding to the AC defined by the Operator, the first numerical value is used for corresponding to the MBS service, that is, the Operator uses the first numerical value as the AC corresponding to the MBS service from the definable numerical range thereof, for example, 36 is used as the AC corresponding to the MBS service; or, n second values are used to correspond to n service scenarios of the MBS service, where the n service scenarios correspond to the n second values in a one-to-one manner, where n is a positive integer, that is, an operator uses a plurality of second values as ACs corresponding to each service scenario of the MBS service from a definable numerical range thereof, and the number of the second values is consistent with the number of service scenarios in the MBS service, for example, 34 corresponds to a service scenario of mobile management, 50 corresponds to a service scenario of internet of vehicles, and 61 corresponds to a service scenario of natural disaster early warning. Optionally, the operator-defined AC corresponds to a value in the range of 32 to 63.

Optionally, when the AC corresponding to the MBS service is defined by an operator, the AC corresponding to the MBS service may be carried in a SIM (Subscriber Identity Module) card or carried in NAS (Non-access stratum) signaling. Optionally, in a value range corresponding to an AC defined by an operator, when n second values correspond to n service scenarios of an MBS service, a corresponding purpose may be achieved by associating the n second values with IDs (identities) of the n service scenarios of the MBS service, a specific representation form of the ID is not limited in the embodiment of the present application, and optionally, the ID is a TMGI (Temporary Mobile Group Identity) or a Multicast Address (Multicast Address). When the AC corresponding to the MBS service is carried by the operator and in the NAS signaling, the criterion type (rule type) value corresponding to the AC may be the IDs of the n service scenarios of the MBS service, that is, the criterion type value may be autonomously defined by the operator according to the IDs of the n service scenarios of the MBS service.

Step 320, the access network device determines the AC corresponding to the MBS service from the AC configuration information.

Because the access network device needs to configure the access control parameter corresponding to each AC, so as to set the condition that the terminal device accesses the wireless access network and control the number of the terminal devices accessing a service, the access network device needs to determine each AC from the AC configuration information and configure the corresponding access control parameter for the AC. In the embodiment of the application, the access network device may determine the AC corresponding to the MBS service from the AC configuration information, and configure access control parameters for the AC corresponding to the MBS service, so as to control the number of terminal devices accessed for the MBS service. For descriptions of AC configuration information, MBS service, AC, etc., please refer to step 310 above, which is not described herein again.

In step 330, the access network device sends a system broadcast message.

After the access network device completes the access control parameters for the configuration of the AC corresponding to the MBS service, the system broadcast message can be sent to the terminal device in the service range of the access network device in a broadcast mode, the system broadcast message comprises the access conditions to be met by the AC corresponding to the MBS service, and the access conditions can be the access control parameters.

It should be noted that, in the embodiment of the present application, the execution order of step 310 and steps 320 and 330 is not limited, and optionally, step 310 may be executed before step 320 and step 330, may be executed after step 320 and step 330, and may also be executed simultaneously with step 320 and step 330.

Step 340, the terminal device determines that the AC corresponding to the MBS service satisfies the access condition of the access network device, and sends a connection establishment request to the access network device.

After determining the AC corresponding to the MBS service, the terminal device may search, from the received system broadcast message, the access condition of the access network device that the AC is to satisfy, and determine whether the AC satisfies the searched access condition. And when the terminal equipment determines that the AC meets the searched access condition, sending a connection establishment request to the access network equipment, wherein the connection establishment request is used for requesting to establish RRC connection between the terminal equipment and the access network equipment.

In an example, the connection establishment request includes a connection establishment cause corresponding to the MBS service, so that when the access network device receives the connection establishment request, the reason why the terminal device requests to establish the RRC connection may be determined, and a reference basis is provided for the access network device to determine whether to allow the terminal device to access. Accordingly, in order to carry the connection establishment cause in the connection establishment request, the terminal device needs to determine the connection establishment cause corresponding to the MBS service, and optionally, the terminal device determines the connection establishment cause corresponding to the MBS service from the predefined configuration information of the connection establishment cause.

The connection establishment cause configuration information refers to information for configuring an RRC connection establishment cause, and in the embodiment of the present application, a determination manner of the connection establishment cause configuration information is not limited, and optionally, the connection establishment cause configuration information is predefined by a communication protocol. In the embodiment of the application, the configuration information of the connection reason includes the corresponding relationship between at least one group of services and the reason for establishing the connection, so that the terminal device can determine the reason for establishing the connection corresponding to the service from the configuration information of the reason for establishing the connection according to the service to be established. Optionally, the correspondence is expressed in the form of a table. Optionally, the corresponding relationship includes AC information and reason information, where the AC information is an AC corresponding to at least one group of services, optionally, the AC is represented in a form of a numerical value, and the reason information is an RRC connection establishment reason corresponding to at least one group of services; optionally, the corresponding relationship further includes identity information, where the identity information is an identity type of the terminal device, and optionally, the identity information indicates a priority order of the terminal device when the RRC connection is established with the access network device, so that according to the identity information, when there are multiple terminal devices that need to access the radio access network, the terminal device with a higher priority may preferentially establish the RRC connection establishment.

In the embodiment of the present application, since there is a corresponding relationship between at least one group of services and the AC, when configuring the connection establishment cause configuration information, in order to simplify the content of configuration, a corresponding relationship may be established between the AC corresponding to at least one group of services and the connection establishment cause. As shown in table two below, which shows a representation of the connection establishment cause configuration information.

Configuration information of table two connection establishment reason

Wherein, Rule # (serial number) represents the position of MBS service and its corresponding connection establishment reason in the configuration information of connection establishment reason; access identities (Access identities) represent identity types of terminal equipment, and the identity types of the terminal equipment for establishing the RRC connection aiming at the MBS service request are not limited in the embodiment of the application; the AC is a numerical value corresponding to the MBS service, and the AC corresponding to the MBS service in this embodiment of the present application may be a dedicated numerical value predefined by a communication protocol, such as 10, or an Operator-defined AC (Operator-defined AC), and optionally, the range of the Operator-defined AC is 32 to 63; RRC assignment is set to (RRC establishment cause) is a connection establishment cause for MBS service, and optionally, the connection establishment cause is for MBS service connection (MBS-access).

In one example, as shown in fig. 4, the method further includes a step 350 of sending, by the access network device, a reject message for the connection establishment request to the terminal device.

After receiving the connection establishment request of the terminal device, the access network device may reject the connection establishment request and send a rejection message for the connection establishment request to the terminal device. The embodiment of the present application does not limit the specific reason why the access network device rejects the connection establishment request of the terminal device, and optionally, when the access network device determines that the current network service quality is poor, and the current MBS service is not supported or is not authorized, the access network device sends a rejection message for the connection establishment request to the terminal device. The specific content of the reject message is not limited in the embodiment of the present application, and optionally, the reject message includes a first timer associated with an ID of the MBS service, where the first timer is configured to indicate, to the terminal device, a time length for no longer processing the MBS service, and exemplarily, within the timing time length of the first timer, the terminal device no longer sends a connection establishment request related to the ID of the MBS service to the access network device, and by associating the first timer with the ID of the MBS service, the terminal device is made to be definitely within the timing time length of the first timer, service content that does not need to be processed is avoided, and it is avoided that the terminal device does not initiate a connection establishment request to the access network device any more for all services within the timing time length of the first timer, and affects the terminal device to perform other services. Optionally, the first timer is a BO timer. Optionally, the reject message of the connection establishment request may further carry a reject reason, where the reject reason includes at least one of the following: the MBS service is not supported, and the MBS service is not authorized, so that the terminal equipment can clearly determine the reason why the connection establishment request is rejected.

To sum up, in the technical solution provided in this embodiment, by adding the corresponding relationship between the MBS service and the AC in the AC configuration information, the terminal device and the access network device may determine the AC for the MBS service, and then the access network device may set the access condition for the AC and broadcast the access condition to the terminal device, and when the AC meets the access condition of the access network device, the terminal device sends a connection establishment request to the access network device, thereby implementing establishment of a connection between the terminal device and the access network device for the MBS service, expanding the service types that the access network device can provide, and enriching the service functions that the terminal device can use.

In addition, according to the technical scheme provided by the embodiment of the application, the AC corresponding to the MBS service can be a special numerical value predefined by a communication protocol, so that the configuration of a plurality of corresponding ACs for the MBS service can be avoided, and the configuration resources of the ACs are saved.

In addition, according to the technical scheme provided by the embodiment of the application, the AC corresponding to the MBS service can also be defined by an operator, so that the operator can flexibly set the AC corresponding to the MBS service. In addition, in the embodiment of the application, an operator can select a plurality of values from the range of the values corresponding to the ACs to correspond to a plurality of service scenes of the MBS service one by one, so that the ACs corresponding to each service scene of the MBS service are configured, the MBS service and the AC have a more exquisite corresponding relationship, and the terminal device has a plurality of selectable ACs for the MBS service.

In addition, according to the technical scheme provided by the embodiment of the application, after receiving the connection establishment request of the terminal device, the access network device may send a rejection message for the connection establishment request to the terminal device, so as to reject the connection establishment request for the MBS service by the terminal device, and since the rejection message includes the timer associated with the ID of the MBS service, the terminal device may not send the connection establishment request associated with the ID of the MBS service to the access network device within the timing duration of the timer, so that the access network device rejects the connection establishment request for the MBS service by the terminal device, which may not affect normal development of other services, thereby ensuring the stability of service development by the terminal device.

Next, a description is given of a session management procedure for the MBS service.

Referring to fig. 5, a flowchart of a session management method provided in an embodiment of the present application is shown, where the method is applicable to the system architecture shown in fig. 1 or fig. 2, and the method may include the following steps:

step 510, the terminal device sends a session management request related to the MBS service to the core network device.

The terminal device may request to establish, modify and release the session related to the MBS service by sending a session management request related to the MBS service to the core network device. Alternatively, the session may be a PDU session. Optionally, the core network device may be the second core network device with the session management function in the foregoing embodiment, and in the 5GS system, the core network device may be implemented as an SMF.

In step 520, the core network device sends a reject message for the session management request to the terminal device, where the reject message includes a BO timer for the MBS service.

After receiving the session management request of the terminal device, the core network device may reject the session management request and send a rejection message for the session management request to the terminal device. The embodiment of the present application does not limit the specific reason why the core network device rejects the session management request of the terminal device, and optionally, when the core network device determines that the current network service quality is poor, and the current MBS service is not supported or is not authorized, the core network device sends a rejection message for the session management request to the terminal device. The embodiment of the present application does not limit the specific content of the reject message, and optionally, the reject message includes a BO timer for the MBS service, so that the terminal device does not initiate a session management request for the MBS service to the core network device within the timing duration of the BO timer after receiving the reject message. Optionally, since there may be multiple service scenarios for the MBS service, the terminal device may initiate a session management request to the core network device for the multiple service scenarios, and in order to make the terminal device clearly determine the specific service scenario to be rejected, in this embodiment of the application, the reject message further includes an ID of the MBS service. Optionally, the reject message may further carry a reject reason, where the reject reason includes at least one of the following: the MBS service is not supported, and the MBS service is not authorized, so that the terminal equipment can clearly determine the reason why the session management request is rejected.

To sum up, in the technical solution provided in this embodiment, a terminal device sends a session management request related to an MBS service to a core network device, and after receiving the session management request, the core network device sends a rejection message for the session management request to the terminal device, and the rejection message includes a BO timer for the MBS service, so that the terminal device may not initiate a session management request for the MBS service to the core network device within a timing duration of the BO timer, thereby avoiding affecting normal development of the terminal device for other services, and ensuring stability of service development of the terminal device.

In addition, in the technical solution provided in this embodiment, the reject message may further include an ID of the MBS service, and since the fineness of service scene division of the MBS service is higher, it cannot be distinguished by using a special DNN and/or S-NSSAI, and by including the ID of the MBS service in the reject message, the terminal device can specify a specific rejected service scene, so that the terminal device can perform subsequent processing analysis on the specific service scene. In addition, in the technical solution provided in the embodiment of the present application, the rejection message may further include a rejection reason, so that the terminal device may clarify the rejection reason, so as to facilitate subsequent improvement in the session management process.

It should be noted that, in the above method embodiment, the technical solution of the present application is described mainly from the perspective of interaction between the terminal device and the access network device, and between the terminal device and the core network device. The steps executed by the related terminal device can be independently realized to be a connection establishing method or a session request method of the terminal device side; the steps executed by the access network equipment can be independently realized to be a connection establishment method at the access network equipment side; the above steps executed by the core network device may be implemented as a session response method on the core network device side.

The following are embodiments of the apparatus of the present application that may be used to perform embodiments of the method of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, reference is made to the embodiments of the method of the present application.

Referring to fig. 6, a block diagram of a connection establishment apparatus according to an embodiment of the present application is shown. The device has the function of realizing the method example of the terminal equipment side, and the function can be realized by hardware or by executing corresponding software by hardware. The apparatus may be the terminal device described above, or may be provided in the terminal device. As shown in fig. 6, the apparatus 600 may include: a type determination module 610 and a request transmission module 620.

A type determining module 610, configured to determine, from the AC configuration information, an AC corresponding to the MBS service; wherein, the AC configuration information includes the corresponding relationship between at least one group of services and the AC.

A request sending module 620, configured to determine that the AC corresponding to the MBS service meets an access condition of an access network device, and send a connection establishment request to the access network device.

In one example, the AC corresponding to the MBS service is a dedicated value predefined in the communication protocol.

In one example, the private number is 10.

In one example, the AC corresponding to the MBS service is defined by an operator.

In one example, in the value range corresponding to the operator-defined AC, a first value is used for corresponding to the MBS service; and/or using n second numerical values to correspond to n service scenes of the MBS service, wherein the n service scenes correspond to the n second numerical values one by one, and n is a positive integer.

In one example, as shown in fig. 7, the apparatus 600 further comprises: a reason determining module 630, configured to determine a connection establishment reason corresponding to the MBS service from predefined connection establishment reason configuration information; the configuration information of the reason for establishing the connection comprises the corresponding relation between at least one group of services and the reason for establishing the connection, and the request for establishing the connection comprises the reason for establishing the connection corresponding to the MBS service.

In one example, as shown in fig. 7, the apparatus 600 further comprises: a reject message receiving module 640, configured to receive a reject message for the connection establishment request from the access network device, where the reject message includes a first timer associated with the ID of the MBS service.

In an example, within the timing duration of the first timer, the terminal device does not send a connection establishment request related to the ID of the MBS service to the access network device any more.

In addition, according to the technical scheme provided by the embodiment of the application, the AC corresponding to the MBS service can also be defined by the operator, so that the operator can flexibly set the AC corresponding to the MBS service. In addition, in the embodiment of the application, an operator can select a plurality of values from the range of the values corresponding to the ACs to correspond to a plurality of service scenes of the MBS service one by one, so that the ACs corresponding to each service scene of the MBS service are configured, the MBS service and the AC have a more exquisite corresponding relationship, and the terminal device has a plurality of selectable ACs for the MBS service.

Referring to fig. 8, a block diagram of a connection establishment apparatus according to an embodiment of the present application is shown. The device has the function of implementing the method example of the access network equipment side, and the function can be implemented by hardware or by hardware executing corresponding software. The apparatus may be the access network device described above, or may be provided in the access network device. As shown in fig. 8, the apparatus 800 may include: a type determination module 810, a system message transmission module 820, and a request reception module 830.

A type determining module 810, configured to determine an AC corresponding to the MBS service from the AC configuration information; wherein, the AC configuration information includes the corresponding relationship between at least one group of services and the AC.

A system message sending module 820, configured to send a system broadcast message, where the system broadcast message includes an access condition that an AC corresponding to the MBS service needs to meet.

A request receiving module 830, configured to receive a connection establishment request from the terminal device, where the connection establishment request is sent when the AC corresponding to the MBS service meets the access condition.

In one example, the private value is 10.

In one example, in a value range corresponding to the operator-defined AC, a first value is used for corresponding to the MBS service; and/or using n second numerical values to correspond to n sub-services of the MBS service, wherein the n sub-services correspond to the n second numerical values one by one, and n is a positive integer.

In one example, as shown in fig. 9, the apparatus 800 further comprises: a reject message sending module 840, configured to send a reject message for the connection establishment request to the terminal device, where the reject message includes a first timer associated with the ID of the MBS service.

To sum up, in the technical solution provided in this embodiment, by adding the corresponding relationship between the MBS service and the AC in the AC configuration information, the terminal device and the access network device may determine the AC for the MBS service, and then the access network device may set the access condition for the AC and broadcast the access condition to the terminal device, and when the AC meets the access condition of the access network device, the terminal device sends a connection establishment request to the access network device, thereby implementing establishment of an RRC connection between the terminal device and the access network device for the MBS service, expanding the service types that the access network device can provide, and enriching the service functions that the terminal device can use.

Referring to fig. 10, a block diagram of a session request device according to an embodiment of the present application is shown. The device has the function of realizing the method example of the terminal equipment side, and the function can be realized by hardware or by executing corresponding software by hardware. The apparatus may be the terminal device described above, or may be provided in the terminal device. As shown in fig. 10, the apparatus 1000 may include: a request sending module 1010 and a message receiving module 1020.

A request sending module 1010, configured to send a session management request related to the MBS service to the core network device.

A message receiving module 1020, configured to receive a rejection message from the core network device for the session management request, where the rejection message includes a backoff BO timer for the MBS service.

In an example, the reject message further includes an ID of the MBS service.

In one example, within the timing duration of the BO timer, the terminal device does not send the session request related to the ID of the MBS service to the core network device any more.

In one example, the reject message further includes a reject reason for the MBS service; wherein the reject cause comprises at least one of: the MBS service is not supported and is not authorized.

Referring to fig. 11, a block diagram of a session response apparatus according to an embodiment of the present application is shown. The apparatus has a function of implementing the method example of the core network device side, and the function may be implemented by hardware, or may be implemented by hardware executing corresponding software. The apparatus may be the core network device described above, or may be disposed in the core network device. As shown in fig. 11, the apparatus 1100 may include: a request receiving module 1110 and a message sending module 1120.

A request receiving module 1110, configured to receive a session management request related to an MBS service from a terminal device.

A message sending module 1120, configured to send a reject message for the session management request to the terminal device, where the reject message includes a backoff BO timer for the MBS service.

In one example, the reject message further includes an ID of the MBS service.

In addition, in the technical solution provided in the embodiment of the present application, the reject message may further include an ID of the MBS service, and since the service scene of the MBS service is divided into more exquisite levels, it cannot be distinguished by using a special DNN and/or S-NSSAI. In addition, in the technical solution provided in the embodiment of the present application, the rejection message may further include a rejection reason, so that the terminal device may clarify the rejection reason, so as to facilitate subsequent improvement in the session management process.

It should be noted that, when the apparatus provided in the foregoing embodiment implements the functions thereof, only the division of the above functional modules is illustrated, and in practical applications, the above functions may be distributed by different functional modules according to actual needs, that is, the content structure of the device is divided into different functional modules, so as to complete all or part of the functions described above.

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

Referring to fig. 12, a schematic structural diagram of a terminal device 120 according to an embodiment of the present application is shown, for example, the terminal device may be configured to execute a connection establishment method on the terminal device side or may be configured to execute a session request method on the terminal device side. Specifically, the method comprises the following steps: the terminal device 120 may include: a processor 121, a receiver 122, a transmitter 123, a memory 124, and a bus 125.

The processor 121 includes one or more processing cores, and the processor 121 executes various functional applications and information processing by executing software programs and modules.

The receiver 122 and the transmitter 123 may be implemented as a transceiver 126, and the transceiver 126 may be a communication chip.

The memory 124 is connected to the processor 121 by a bus 125.

The memory 124 may be used for storing a computer program, which the processor 121 is used for executing in order to implement the various steps performed by the terminal device in the above-described method embodiments.

Further, memory 124 may be implemented by any type or combination of volatile or non-volatile storage devices, including, but not limited to: RAM (Random-Access Memory) and ROM (Read-Only Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash Memory or other solid state storage technology, CD-ROM (Compact Disc Read-Only Memory), DVD (Digital Video Disc) or other optical storage, magnetic tape cartridge, magnetic tape, magnetic disk storage or other magnetic storage devices. Wherein:

when the terminal device is used for executing the connection establishment method on the terminal device side:

the processor 121 is configured to determine, from the AC configuration information, an AC corresponding to the MBS service; wherein, the AC configuration information includes the corresponding relationship between at least one group of services and the AC.

The transceiver 126 is configured to determine that the AC corresponding to the MBS service satisfies an access condition of an access network device, and send a connection establishment request to the access network device.

In one example, the private value is 10.

In one example, in the value range corresponding to the operator-defined AC, a first value is used for corresponding to the MBS service; and/or using n second numerical values to correspond to n service scenes of the MBS service, wherein the n service scenes correspond to the n second numerical values one to one, and n is a positive integer.

In an example, the processor 121 is further configured to determine a connection establishment cause corresponding to the MBS service from predefined connection establishment cause configuration information; the configuration information of the reason for establishing the connection comprises the corresponding relation between at least one group of services and the reason for establishing the connection, and the request for establishing the connection comprises the reason for establishing the connection corresponding to the MBS service.

In an example, the transceiver 126 is further configured to receive a rejection message from the access network device for the connection establishment request, where the rejection message includes a first timer associated with an ID of the MBS service.

When the terminal device is used for executing the session request method of the terminal device side:

the transceiver 126 is configured to send a session management request related to the MBS service to the core network device.

The transceiver 126 is further configured to receive a rejection message from the core network device for the session management request, where the rejection message includes a fallback BO timer for the MBS service.

In one example, the reject message further includes an ID of the MBS service.

Referring to fig. 13, it shows a schematic structural diagram of an access network device 130 according to an embodiment of the present application, for example, the access network device may be configured to execute the connection establishment method on the access network device side. Specifically, the method comprises the following steps: the access network device 130 may include: processor 131, receiver 132, transmitter 133, memory 134, and bus 135.

The processor 131 includes one or more processing cores, and the processor 131 executes various functional applications and information processing by executing software programs and modules.

The receiver 132 and the transmitter 133 may be implemented as a transceiver 136, and the transceiver 136 may be a communication chip.

The memory 134 is coupled to the processor 131 by a bus 135.

The memory 134 may be used for storing a computer program, which the processor 131 is used for executing to implement the various steps performed by the access network device in the above-described method embodiments.

Further, the memory 134 may be implemented by any type or combination of volatile or non-volatile storage devices, including, but not limited to: RAM (Random-Access Memory) and ROM (Read-Only Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash Memory or other solid state storage technology, CD-ROM (Compact Disc Read-Only Memory), DVD (Digital Video Disc) or other optical storage, magnetic tape cartridge, magnetic tape, magnetic disk storage or other magnetic storage devices. Wherein:

the processor 131 is configured to determine an AC corresponding to the MBS service from the AC configuration information; wherein, the AC configuration information includes the corresponding relationship between at least one group of services and the AC.

The transceiver 136 is configured to send a system broadcast message, where the system broadcast message includes an access condition that an AC corresponding to the MBS service is to satisfy.

The transceiver 136 is configured to receive a connection establishment request from the terminal device, where the connection establishment request is sent when the AC corresponding to the MBS service satisfies the access condition.

In one example, the private value is 10.

In an example, the transceiver 136 is further configured to send a rejection message for the connection establishment request to the terminal device, where the rejection message includes a first timer associated with an ID of the MBS service.

Referring to fig. 14, a schematic structural diagram of a core network device 140 according to an embodiment of the present application is shown, for example, the core network device may be configured to execute the session response method on the core network device side. Specifically, the method comprises the following steps: the core network device 140 may include: processor 141, receiver 142, transmitter 143, memory 144, and bus 145.

The processor 141 includes one or more processing cores, and the processor 141 executes various functional applications and information processing by running software programs and modules.

The receiver 142 and the transmitter 143 may be implemented as a transceiver 146, and the transceiver 146 may be a communication chip.

The memory 144 is coupled to the processor 141 by a bus 145.

The memory 144 may be used to store a computer program, which the processor 141 is configured to execute to implement the steps performed by the core network device in the above-described method embodiments.

Further, the memory 144 may be implemented by any type or combination of volatile or non-volatile storage devices, including, but not limited to: RAM (Random-Access Memory) and ROM (Read-Only Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash Memory or other solid state storage technology, CD-ROM (Compact Disc Read-Only Memory), DVD (Digital Video Disc) or other optical storage, magnetic tape cartridge, magnetic tape, magnetic disk storage or other magnetic storage devices. Wherein:

the transceiver 146 is configured to receive a session management request related to the MBS service from the terminal device.

The transceiver 146 is further configured to send a reject message for the session management request to the terminal device, where the reject message includes a backoff BO timer for the MBS service.

In one example, the reject message further includes an ID of the MBS service.

An embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used for being executed by a processor of a terminal device to implement the connection establishment method on the terminal device side.

An embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used for being executed by a processor of an access network device, so as to implement the method for establishing a connection on the access network device side.

An embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used for being executed by a processor of a terminal device, so as to implement the session request method on the terminal device side.

An embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used for being executed by a processor of a core network device, so as to implement the session response method on the core network device side.

The embodiment of the application further provides a chip, which comprises a programmable logic circuit and/or a program instruction, and when the chip runs on the terminal device, the chip is used for realizing the connection establishment method on the terminal device side.

The embodiment of the present application further provides a chip, where the chip includes a programmable logic circuit and/or a program instruction, and when the chip runs on an access network device, the chip is configured to implement the method for establishing a connection on the access network device side as described above.

The embodiment of the application provides a chip, which comprises a programmable logic circuit and/or a program instruction, and when the chip runs on a terminal device, the chip is used for realizing the session request method on the terminal device side.

The embodiment of the present application provides a chip, where the chip includes a programmable logic circuit and/or a program instruction, and when the chip runs on a core network device, the chip is configured to implement the above session response method on the core network device side.

The application also provides a computer program product, which enables a computer to execute the connection establishment method of the terminal equipment side when the computer program product runs on the computer of the terminal equipment side.

The present application further provides a computer program product, which when running on a computer on the access network device side, causes the computer to execute the above-mentioned connection establishment method on the access network device side.

The application also provides a computer program product, which enables a computer to execute the session request method of the terminal equipment side when the computer program product runs on the computer of the terminal equipment side.

The application also provides a computer program product, when the computer program product runs on a computer at the core network equipment side, the computer is enabled to execute the session response method at the core network equipment side.

Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in the embodiments of the present application may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The above description is only exemplary of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like that are made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

A connection establishing method is applied to terminal equipment, and the method comprises the following steps:

determining an AC corresponding to the MBS service of the multicast broadcast service from the configuration information of the access type AC; wherein, the AC configuration information comprises the corresponding relation between at least one group of services and the AC;

and determining that the AC corresponding to the MBS service meets the access condition of the access network equipment, and sending a connection establishment request to the access network equipment.
The method of claim 1, wherein the AC corresponding to the MBS service is a specific value predefined in the communication protocol.
The method of claim 2, wherein the dedicated value is 10.
Method according to any of claims 1 to 3, characterized in that the AC corresponding to the MBS service is defined by the operator.
The method of claim 4, wherein, in the operator-defined range of values for the AC,

using a first numerical value to correspond to the MBS service;

and/or the presence of a gas in the gas,

and using n second numerical values to correspond to n service scenes of the MBS service, wherein the n service scenes correspond to the n second numerical values one to one, and n is a positive integer.
The method according to any one of claims 1 to 5, further comprising:

determining a connection establishment reason corresponding to the MBS service from predefined connection establishment reason configuration information;

the configuration information of the reason for establishing the connection comprises the corresponding relation between at least one group of services and the reason for establishing the connection, and the request for establishing the connection comprises the reason for establishing the connection corresponding to the MBS service.
The method of any of claims 1 to 6, wherein after sending the connection establishment request to the access network device, further comprising:

and receiving a rejection message from the access network equipment for the connection establishment request, wherein the rejection message comprises a first timer associated with the identification ID of the MBS service.
The method of claim 7, wherein the terminal device does not send the connection establishment request related to the ID of the MBS service to the access network device any more within the timing duration of the first timer.
A connection establishment method is applied to an access network device, and comprises the following steps:

determining an AC corresponding to the MBS service of the multicast broadcast service from the configuration information of the access type AC; the AC configuration information comprises a corresponding relation between at least one group of services and the AC;

sending a system broadcast message, wherein the system broadcast message comprises an access condition which is to be met by an AC (access controller) corresponding to the MBS service;

and receiving a connection establishment request from the terminal equipment, wherein the connection establishment request is sent under the condition that the AC corresponding to the MBS service meets the access condition.
The method of claim 9, wherein the AC corresponding to the MBS service is a specific value predefined in the communication protocol.
The method of claim 10, wherein the dedicated numerical value is 10.
The method according to any of claims 9 to 11, wherein the AC corresponding to the MBS service is defined by an operator.
The method of claim 12, wherein, in the operator-defined AC corresponding range of values,

using a first numerical value to correspond to the MBS service;

and/or the presence of a gas in the gas,

and using n second numerical values to correspond to n sub-services of the MBS service, wherein the n sub-services correspond to the n second numerical values one to one, and n is a positive integer.
The method according to any of claims 9 to 13, wherein after sending the connection establishment request to the access network device, further comprising:

and sending a rejection message aiming at the connection establishment request to the terminal equipment, wherein the rejection message comprises a first timer associated with the identification ID of the MBS service.
A session request method is applied to a terminal device, and comprises the following steps:

sending a session management request related to a Multicast Broadcast Service (MBS) service to core network equipment;

receiving a rejection message from the core network device for the session management request, wherein the rejection message includes a back-off BO timer for the MBS service.
The method of claim 15, wherein the reject message further comprises an identification ID of the MBS service.
The method of claim 15 or 16, wherein the terminal device does not send the session request related to the ID of the MBS service to the core network device any longer within the timing duration of the BO timer.
The method according to any of claims 15 to 17, wherein the reject message further comprises a reject reason for the MBS service; wherein the reject cause comprises at least one of: the MBS service is not supported and is not authorized.
A session response method is applied to a core network device, and the method comprises the following steps:

receiving a session management request related to a Multicast Broadcast Service (MBS) service from terminal equipment;

and sending a rejection message aiming at the session management request to the terminal equipment, wherein the rejection message comprises a back-off BO timer aiming at the MBS service.
The method of claim 19, wherein the reject message further comprises an identification ID of the MBS service.
The method according to claim 19 or 20, wherein the reject message further comprises a reject reason for the MBS service; wherein the reject cause comprises at least one of: the MBS service is not supported and is not authorized.
A connection establishing apparatus, applied to a terminal device, the apparatus comprising:

the type determining module is used for determining an AC corresponding to the multicast broadcast service MBS service from the configuration information of the access type AC; the AC configuration information comprises a corresponding relation between at least one group of services and the AC;

and the request sending module is used for determining that the AC corresponding to the MBS service meets the access condition of the access network equipment and sending a connection establishment request to the access network equipment.
The apparatus of claim 22, wherein the AC corresponding to the MBS service is a specific value predefined in the communication protocol.
The apparatus of claim 23, wherein the dedicated value is 10.
The apparatus of any of claims 22 to 24, wherein the AC corresponding to the MBS service is defined by an operator.
The apparatus of claim 25, wherein in the operator-defined range of values for the AC,

using a first numerical value to correspond to the MBS service;

and/or the presence of a gas in the gas,

and using n second numerical values to correspond to n service scenes of the MBS service, wherein the n service scenes correspond to the n second numerical values one to one, and n is a positive integer.
The apparatus of any one of claims 22 to 26, further comprising:

a reason determining module, configured to determine a connection establishment reason corresponding to the MBS service from predefined connection establishment reason configuration information;

the configuration information of the reason for establishing the connection comprises the corresponding relation between at least one group of services and the reason for establishing the connection, and the request for establishing the connection comprises the reason for establishing the connection corresponding to the MBS service.
The apparatus of any one of claims 22 to 27, further comprising:

a reject message receiving module, configured to receive a reject message from the access network device for the connection establishment request, where the reject message includes a first timer associated with an identifier ID of the MBS service.
The apparatus of claim 28, wherein the terminal device does not send a connection setup request related to the ID of the MBS service to the access network device any more within the timing duration of the first timer.
A connection establishing apparatus, applied to an access network device, the apparatus comprising:

the type determining module is used for determining an AC corresponding to the multicast broadcast service MBS service from the configuration information of the access type AC; wherein, the AC configuration information comprises the corresponding relation between at least one group of services and the AC;

a system message sending module, configured to send a system broadcast message, where the system broadcast message includes an access condition that an AC corresponding to the MBS service needs to meet;

a request receiving module, configured to receive a connection establishment request from the terminal device, where the connection establishment request is sent when an AC corresponding to the MBS service meets the access condition.
The apparatus of claim 30, wherein the AC corresponding to the MBS service is a specific value predefined in a communication protocol.
The apparatus of claim 31, wherein the dedicated numerical value is 10.
The apparatus of any of claims 30 to 32, wherein the AC corresponding to the MBS service is defined by an operator.
The apparatus of claim 33, wherein in the operator-defined range of values corresponding to ACs,

using a first numerical value to correspond to the MBS service;

and/or the presence of a gas in the gas,

and using n second numerical values to correspond to n sub-services of the MBS service, wherein the n sub-services correspond to the n second numerical values one to one, and n is a positive integer.
The apparatus of any one of claims 30 to 34, further comprising:

a reject message sending module, configured to send a reject message for the connection establishment request to the terminal device, where the reject message includes a first timer associated with the identifier ID of the MBS service.
A session request apparatus, applied to a terminal device, the apparatus comprising:

the request sending module is used for sending a session management request related to the multicast broadcast service MBS to the core network equipment;

a message receiving module, configured to receive a reject message from the core network device for the session management request, where the reject message includes a backoff BO timer for the MBS service.
The apparatus of claim 36, wherein the reject message further comprises an identification ID of the MBS service.
The apparatus of claim 36 or 37, wherein the terminal device does not send the session request related to the ID of the MBS service to the core network device within the timing duration of the BO timer.
The apparatus according to any of claims 36 to 38, wherein the reject message further comprises a reject cause for the MBS service; wherein the reject cause comprises at least one of: the MBS service is not supported and is not authorized.
A session response apparatus, applied to a core network device, the apparatus comprising:

a request receiving module, configured to receive a session management request related to a multicast broadcast service MBS service from a terminal device;

a message sending module, configured to send a reject message for the session management request to the terminal device, where the reject message includes a backoff BO timer for the MBS service.
The apparatus of claim 40, wherein the reject message further comprises an Identification (ID) of the MBS service.
The apparatus according to claim 40 or 41, wherein the reject message further comprises a reject reason for the MBS service; wherein the reject cause comprises at least one of: the MBS service is not supported and is not authorized.
A terminal device, characterized in that the terminal device comprises: a processor, and a transceiver coupled to the processor; wherein:

the processor is used for determining an AC corresponding to the MBS service from the configuration information of the access type AC; the AC configuration information comprises a corresponding relation between at least one group of services and the AC;

and the transceiver is used for determining that the AC corresponding to the MBS service meets the access condition of the access network equipment and sending a connection establishment request to the access network equipment.
An access network device, characterized in that the access network device comprises: a processor, and a transceiver coupled to the processor; wherein:

the processor is used for determining an AC corresponding to the MBS service from the configuration information of the access type AC; wherein, the AC configuration information comprises the corresponding relation between at least one group of services and the AC;

the transceiver is used for sending system broadcast messages, and the system broadcast messages comprise access conditions to be met by the AC corresponding to the MBS service;

the transceiver is further configured to receive a connection establishment request from the terminal device, where the connection establishment request is sent when the AC corresponding to the MBS service satisfies the access condition.
A terminal device, characterized in that the terminal device comprises: a processor, and a transceiver coupled to the processor; wherein:

the transceiver is used for sending a session management request related to the multicast broadcast service MBS service to the core network equipment;

the transceiver is further configured to receive a reject message from the core network device for the session management request, where the reject message includes a backoff BO timer for the MBS service.
A core network device, characterized in that the core network device comprises: a processor, and a transceiver coupled to the processor; wherein:

the transceiver is used for receiving a session management request related to a Multicast Broadcast Service (MBS) service from terminal equipment;

the transceiver is further configured to send a reject message for the session management request to the terminal device, where the reject message includes a backoff BO timer for the MBS service.
A computer-readable storage medium, characterized in that a computer program is stored in the storage medium, which computer program is adapted to be executed by a processor of a terminal device to implement the connection establishment method according to any one of claims 1 to 8.
A computer-readable storage medium, in which a computer program is stored which is adapted to be executed by a processor of an access network device to implement the connection establishment method according to any one of claims 9 to 14.
A computer-readable storage medium, in which a computer program is stored, the computer program being adapted to be executed by a processor of a terminal device to implement a session request method according to any one of claims 15 to 18.
A computer-readable storage medium, in which a computer program is stored, the computer program being adapted to be executed by a processor of a core network device to implement the session response method according to any one of claims 19 to 21.