WO2023045839A1

WO2023045839A1 - Communication method and apparatus, core network device and communication device

Info

Publication number: WO2023045839A1
Application number: PCT/CN2022/119274
Authority: WO
Inventors: 张奕忠; 柯小婉
Original assignee: 维沃移动通信有限公司
Priority date: 2021-09-22
Filing date: 2022-09-16
Publication date: 2023-03-30
Also published as: CN115915089A

Abstract

The present application belongs to the technical field of communications, and discloses a communication method and apparatus, a core network device and a communication device. The communication method according to the embodiments of the present application comprises: a first communication device receives first information, the first information comprising first indication information, and the first indication information being used to indicate at least one of the following: establishing a first communication channel, one end of the first communication channel being a radio access network device, and the first communication channel being used to report a subscribed event, and not establishing a DRB between the radio access network device and a terminal device; and the first communication device performs a first operation according to the first information, the first operation comprising at least one of the following: establishing a first communication channel, not establishing a DRB between the radio access network device and the terminal device, and sending second information by using the first communication channel if there is a first communication channel.

Description

Communication method, device, core network equipment and communication equipment

Cross References to Related Applications

This application claims priority to Chinese Patent Application No. 202111109308.6 filed in China on September 22, 2021, the entire contents of which are hereby incorporated by reference.

technical field

The present application belongs to the technical field of communication, and in particular relates to a communication method, device, core network equipment and communication equipment.

Background technique

With the development of communication technology, the service source, such as application server (application server) or application function (application function, AF), may need to be based on the relevant information fed back from the radio access network (Radio Access Network, RAN) side ( For example, business receiving conditions, transmission conditions, etc.) to adaptively adjust the mode of sending business data packets, so as to improve business service quality. However, in the related art, there is no relevant solution for how the radio access network device feeds back information to the application server or AF.

Contents of the invention

Embodiments of the present application provide a communication method, device, core network equipment, and communication equipment, which can provide a way for radio access network equipment to feed back information to application servers or AFs, etc., so as to improve business services of application servers, AFs, etc. quality.

In a first aspect, a communication method is provided, and the method includes:

The first communication device receives the first information; the first information includes first indication information, and the first indication information is used to indicate at least one of the following items: a first communication channel is established, and one end of the first communication channel is The wireless access network device; the first communication channel is used to report the subscribed event; the data radio bearer (Data Radio Bearer, DRB) between the wireless access network device and the terminal device is not established;

The first communication device performs a first operation according to the first information; the first operation includes at least one of the following: establishing the first communication channel; not establishing a DRB between the radio access network device and the terminal device ; If the first communication channel exists, use the first communication channel to send the second information; wherein, the second information is related content of the subscribed event.

In a second aspect, a communication method is provided, and the method includes:

The first core network device sends seventh information, the seventh information is used to request the establishment of a first communication channel, and the first communication channel is used to report subscribed events, or one end of the first communication channel is a wireless access network equipment.

In a third aspect, a communication method is provided, and the method includes:

The second core network device receives tenth information; the tenth information includes first policy information;

The second core network device sends first information according to the tenth information; the first information includes first indication information, and the first indication information is used to indicate at least one of the following: establishing a first communication channel, In addition, one end of the first communication channel is a wireless access network device; the first communication channel is used to report subscribed events; and the DRB between the terminal device and the wireless access network device is not established.

In a fourth aspect, a communication method is provided, and the method includes:

The third core network device sends tenth information; the tenth information includes first policy information and fourth indication information, or the tenth information includes first policy information, and the first policy information includes a fourth indication information;

Wherein, the fourth indication information is used to indicate at least one of the following: establish a first communication channel, and one end of the first communication channel is a wireless access network device; the first communication channel is used to report subscribed events; A DRB between the radio access network device and the terminal device is established.

In a fifth aspect, a communication device is provided, and the device includes:

A receiving module, configured to receive first information; the first information includes first indication information, and the first indication information is used to indicate at least one of the following items: a first communication channel is established, and one end of the first communication channel It is a wireless access network device; the first communication channel is used to report subscribed events; a DRB between the wireless access network device and the terminal device is not established;

An executing module, configured to execute a first operation according to the first information; the first operation includes at least one of the following: establishing the first communication channel; not establishing a DRB between the wireless access network device and the terminal device; When the first communication channel exists, the first communication channel is used to send the second information; wherein the second information is related content of the subscribed event.

In a sixth aspect, a communication device is provided, and the device includes:

The fourth sending module is used to send seventh information, the seventh information is used to request the establishment of a first communication channel, and the first communication channel is used to report subscribed events, or one end of the first communication channel is a wireless access network equipment.

In a seventh aspect, a communication device is provided, and the device includes:

A third receiving module, configured to receive tenth information; the tenth information includes first policy information;

The fifth sending module is configured to send first information according to the tenth information; the first information includes first indication information, and the first indication information is used to indicate at least one of the following: establishing a first communication channel, In addition, one end of the first communication channel is a wireless access network device; the first communication channel is used to report subscribed events; and the DRB between the terminal device and the wireless access network device is not established.

In an eighth aspect, a communication device is provided, and the device includes:

An eighth sending module, configured to send tenth information; the tenth information includes first policy information and fourth indication information, or the tenth information includes first policy information, and the first policy information includes the first policy information 4. instruction information;

According to the ninth aspect, a communication device is provided, which includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor, and the program or instruction is executed by the processor When executed, the steps of the method described in the first aspect are realized.

In a tenth aspect, a communication device is provided, including a processor and a communication interface, wherein the communication interface is used to receive first information; the first information includes first indication information, and the first indication information is used to Indicate at least one of the following: establish a first communication channel, and one end of the first communication channel is a wireless access network device; the first communication channel is used to report subscribed events; do not establish a communication between the wireless access network device and the terminal device DRB between data radio bearers; the processor is configured to perform a first operation according to the first information; the first operation includes at least one of the following: establishing the first communication channel; not establishing a radio access network device and The DRB between terminal devices; if the first communication channel exists, the first communication channel is used to send the second information; wherein the second information is related content of the subscribed event.

In an eleventh aspect, a core network device is provided, and the core network device includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor, the program or instruction being executed by the When the processor is executed, the steps of the method according to the second aspect are realized, or the steps of the method according to the third aspect are realized, or the steps of the method according to the fourth aspect are realized.

In a twelfth aspect, a core network device is provided, including a processor and a communication interface, wherein the communication interface is used to send seventh information, and the seventh information is used to request establishment of a first communication channel, and the first A communication channel is used to report subscribed events, or one end of the first communication channel is a radio access network device;

or

The communication interface is used to receive tenth information; the tenth information includes first policy information; according to the tenth information, send first information; the first information includes first indication information, and the first indication The information is used to indicate at least one of the following items: a first communication channel is established, and one end of the first communication channel is a wireless access network device; the first communication channel is used to report subscribed events; the terminal device and the wireless access network are not established; DRB between network devices;

or

The communication interface is used to send tenth information; the tenth information includes first policy information and fourth indication information, or the tenth information includes first policy information, and the first policy information includes fourth Indication information; wherein, the fourth indication information is used to indicate at least one of the following: a first communication channel is established, and one end of the first communication channel is a wireless access network device; the first communication channel is used to report being subscribed Event; the DRB between the radio access network device and the terminal device is not established.

A thirteenth aspect provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the method as described in the first aspect are implemented, or The steps of the method described in the second aspect, or implement the steps of the method described in the third aspect, or implement the steps of the method described in the fourth aspect.

In a fourteenth aspect, there is provided a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor is used to run programs or instructions, and implement the method described in the first aspect The steps of the method, or realize the steps of the method described in the second aspect, or realize the steps of the method described in the third aspect, or realize the steps of the method described in the fourth aspect.

In a fifteenth aspect, a computer program or program product is provided, the computer program or program product is stored in a non-transitory readable storage medium, and the program or program product is executed by at least one processor to implement the following The steps of the method described in the first aspect, or realize the steps of the method described in the second aspect, or realize the steps of the method described in the third aspect, or realize the steps of the method described in the fourth aspect.

In a sixteenth aspect, there is provided a communication device configured to perform the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect, or implement the method described in the third aspect steps, or realize the steps of the method as described in the fourth aspect.

In this embodiment of the present application, the first communication device may execute the process of establishing a first communication channel, not establishing a DRB between the wireless access network device and the terminal device, and using the first communication channel to send subscribed events according to the first information. At least one operation in the related content enables the radio access network device to feed back information based on at least one of a channel with one end being the radio access network device and a manner of subscribing to an event.

Description of drawings

FIG. 1 is a block diagram of a wireless communication system to which an embodiment of the present application is applicable;

FIG. 2 is a flowchart of a communication method provided by an embodiment of the present application;

FIG. 3 is a flow chart of another communication method provided by an embodiment of the present application;

FIG. 4 is a flow chart of another communication method provided by an embodiment of the present application;

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

FIG. 6 is a flow chart of another communication method provided by an embodiment of the present application;

FIG. 7 is a flow chart of another communication method provided by an embodiment of the present application;

FIG. 8 is a structural diagram of a communication device provided by an embodiment of the present application;

FIG. 9 is a structural diagram of another communication device provided by an embodiment of the present application;

FIG. 10 is a structural diagram of another communication device provided by an embodiment of the present application;

FIG. 11 is a structural diagram of another communication device provided by an embodiment of the present application;

FIG. 12 is a structural diagram of a communication device provided by an embodiment of the present application;

FIG. 13 is a structural diagram of a wireless access network device provided by an embodiment of the present application;

FIG. 14 is a structural diagram of a core network device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and "second" distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the description and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

It is worth noting that the technology described in the embodiment of this application is not limited to the Long Term Evolution (Long Term Evolution, LTE)/LTE-Advanced (LTE-Advanced, LTE-A) system, and can also be used in other wireless communication systems, such as code Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (Single-carrier Frequency-Division Multiple Access, SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies. The following description describes the New Radio (NR) system for illustrative purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6 ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable. The wireless communication system includes a terminal device 11 , a radio access network device 12 and a core network device 13 . Wherein, the terminal equipment 11 can also be called a terminal equipment or user equipment (User Equipment, UE), and the terminal equipment 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, Personal Digital Assistant (Personal Digital Assistant, PDA), PDA, Netbook, Ultra-Mobile Personal Computer (Ultra-Mobile Personal Computer, UMPC), Mobile Internet Device (Mobile Internet Device, MID), Wearable Device (Wearable Device) or Terminal-side equipment such as Vehicle User Equipment (VUE), Pedestrian User Equipment (PUE), and wearable equipment include: smart watches, bracelets, earphones, glasses, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . The radio access network device 12 may include a base station, where a base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, Wireless Local Area Network (WLAN) Access point, wireless network communication technology (WiFi) node, transmitting and receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms , it should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited. The aforementioned core network device 13 may include but not limited to application function (application function, AF), policy control function (Policy Control Function, PCF), core network access and mobility management function (Core Access and Mobility Management Function, AMF), session One or more of the management function (Session Management Function, SMF), user plane function (User plane Function, UPF) and network development function (Network Exposure Function, NEF).

For ease of understanding, the following describes the relevant content involved in the embodiment of the present application:

1. About protocol data unit (Protocol Data Unit, PDU) session and service quality flow (Quality of Service flow, QoS flow)

In a fifth generation ( ^5th Generation, 5G) communication network, a PDU session refers to a bearer for communication between a user equipment (User Equipment, UE) and a data network (Data Network, DN). After the PDU session is established, a data transmission channel between UE and DN is established. Each PDU session may contain several QoS flows. The UE identifies the data packets from the application layer according to the QoS rules configured on the network side, and then maps the data packets to different QoS flows for transmission. That is to say, the UE needs to establish a PDU session by executing a control plane procedure before it can communicate with the application server.

2. In the 5G network, the application function (AF) is allowed to obtain information by subscribing to related events

The monitoring event function can be used to monitor specific events in the 3rd Generation Partnership Project (3GPP) system, and report such monitoring event information through the Network Exposure Function (NEF). It consists of means that allow the Network Function (NF) in the fifth-generation system (5th-Generation System, 5GS) to configure specific events, detect events, and report events to the requested party.

3. High Data Rate Low Latency (HDRLL) business

HDRLL is a general term for a class of services, that is, high data rate and low latency services, such as cloud gaming (Cloud Gaming), cloud augmented reality (Augmented Reality, AR), cloud virtual reality (Virtual Reality, VR), extended reality (Extended Reality) Reality, XR) etc.

Taking XR as an example, XR refers to a combination of real and virtual environments and human-computer interaction equipment. It uses computer technology and wearable devices for calculations. X is a variable, which can be current or future spatial calculations. Technology, which includes AR, Mixed Reality (MR) and VR and areas like these. Compared with traditional video, VR brings an unprecedented immersive experience. AR is a technology that seamlessly integrates real-world information and virtual world information. MR is the combination of VR and AR, combining virtual reality and augmented reality to provide a new visualization environment. The significance of XR lies in the extension of human experience, especially in relation to the sense of presence (presented by virtual reality) and access to knowledge (presented by augmented reality). XR services have the characteristics of high data rate, high reliability requirements, low delay requirements, non-integer cycle, packet arrival time jitter, multiple service flows, and changing packet sizes, which put forward higher requirements for mobile communication systems.

The communication method provided by the embodiment of the present application will be described in detail below through some embodiments and application scenarios with reference to the accompanying drawings.

Please refer to FIG. 2. FIG. 2 is a flow chart of a communication method provided by an embodiment of the present application. The method may be executed by the first communication device, as shown in FIG. 2, including the following steps:

Step 201. The first communication device receives first information; the first information includes first indication information, and the first indication information is used to indicate at least one of the following: a first communication channel is established, and the first communication channel One end of the wireless access network device; the first communication channel is used to report subscribed events; no DRB is established between the wireless access network device and the terminal device.

In this embodiment, the foregoing first communication device may include a RAN or user equipment (User Equipment, UE), where the foregoing user equipment may also be called a terminal device.

The above subscribed events may include but not limited to HDRLL service-related events, for example, cloud game-related events, AR-related events, VR-related events, or XR-related events. Optionally, the above-mentioned first communication channel is used for reporting the subscribed event may refer to that the first communication channel is used for the wireless access network device to report the subscribed event.

As for one end of the above-mentioned first communication channel being a wireless access network device, optionally, the above-mentioned first communication channel may be a channel between the wireless access network device and the core network device, for example, the above-mentioned first communication channel may be a wireless The channel between the access network device and the AF, or the channel between the wireless access network device and a user plane function (User plane Function, UPF), etc. Optionally, the above-mentioned first communication channel may be a data channel.

The DRB between the wireless access network device and the terminal device is not established above, that is, one end of the established channel is the wireless access network device (ie, the first communication channel), for example, the channel between the wireless access network device and the AF , or it may be a channel between the radio access network device and the UPF, etc.

It should be noted that, in some scenarios, the above-mentioned failure to establish a DRB between the wireless access network device and the terminal device can also be understood as not establishing a QoS flow on the UE side, or the session management function (Session Management Function, SMF) does not Generate quality of service rules (QoS rule) for UE. Take the example of not establishing a QoS flow on the UE side. In related technologies, the QoS flow is often carried in a PDU session. One of the two ends of the QoS flow is the UE, and the other is the UPF. However, this embodiment does not establish the QoS flow on the UE side. flow, thereby establishing a channel between RAN and UPF.

In an embodiment, the above-mentioned first instruction information may be used to indicate the establishment of the first communication channel, and one end of the first communication channel is a wireless access network device, or indicate not to establish a connection between the wireless access network device and the terminal device. between DRBs. In this implementation manner, optionally, the first communication channel may be a channel between the radio access network device and the AF, or may be a channel between the radio access network device and the UPF.

In another implementation manner, the above-mentioned first indication information may be used to indicate that the first communication channel is used to report subscribed events. In this embodiment, optionally, the above-mentioned first communication channel may be a channel between the radio access network device and the AF, or may be a channel between the radio access network device and the UPF, or may be a channel between the UE and the AF The channel between, or can be the channel between UE and UPF. In addition, the above-mentioned first communication channel may be a new channel or an existing channel.

In another implementation manner, the above-mentioned first indication information may be used to indicate that the first communication channel is established and one end of the first communication channel is a wireless access network device or that no communication between the wireless access network device and the terminal device is established. DRB, and indicating that the first communication channel is used to report subscribed events. In this embodiment, optionally, the above-mentioned first communication channel may be a channel between the radio access network device and the AF, or may be a channel between the radio access network device and the UPF, and the first communication channel Used to report subscribed events.

It should be noted that, for the above step 201, the first communication device may receive the first information sent by the second core network device (for example, SMF). For example, the SMF may send the first information to the RAN through a communication N1N2 message transfer (Namf_Communication_N1N2MessageTransfer) message.

Step 202, the first communication device performs a first operation according to the first information; the first operation includes at least one of the following: establishing the first communication channel; not establishing a connection between the wireless access network device and the terminal device The DRB between; if the first communication channel exists, use the first communication channel to send the second information; wherein the second information is the relevant content of the subscribed event.

The present embodiment is described below in conjunction with example:

Embodiment 1: When the first indication information indicates establishment of a first communication channel and one end of the first communication channel is a radio access network device, or indicates that a DRB between the radio access network device and the terminal device is not established , the first communication device may establish a first communication channel with one end being a radio access network device, or not establish a DRB between the radio access network device and the terminal device. In this way, the radio access network device can quickly feed back information based on the established first communication channel with one end being the radio access network device, thereby reducing the time delay for the radio access network device to feed back information.

Embodiment 2: The first indication information indicates the establishment of a first communication channel, and one end of the first communication channel is a wireless access network device, or indicates that the DRB between the wireless access network device and the terminal device is not established In this case, the first communication device may establish a first communication channel with one end being the radio access network device, or may not establish a DRB between the radio access network device and the terminal device, and may use the established end as the radio access network device The first communication channel of the to send the content related to the subscribed event (that is, the second information). In this embodiment, by comprehensively using the first communication channel with one end as the radio access network device and event subscription to feed back information, the convenience of information feedback from the radio access network device can be improved, and the time for the radio access network device to feed back information can be reduced. delay.

Embodiment 3: When the first indication information indicates that the first communication channel is used to report the subscribed event, the first communication device may establish the first communication channel for reporting the subscribed event, and use the established first communication channel Channels send content related to subscribed events. In this embodiment, one end of the above-mentioned first communication channel may be a wireless access network device, or may be a terminal device. For example, the above-mentioned first communication channel may be a channel between the wireless access network device and the UPF, or may be a Channel between UE and UPF. The above establishment of the first communication channel for reporting subscribed events may be to create a new channel for reporting subscribed events, or may be to configure an existing channel as a channel for reporting subscribed events. In this embodiment, information is fed back through event subscription, which can improve the convenience of wireless access network device information feedback.

Embodiment 4: In the case where the first indication information indicates that the first communication channel is used to report the subscribed event, the first communication device may use the first communication channel to send relevant content of the subscribed event. In this embodiment, the above-mentioned first communication channel may be an existing channel, wherein one end of the first communication channel may be a wireless access network device, or may be a terminal device, for example, the above-mentioned first communication channel may be a wireless The channel between the access network device and the UPF, or the channel between the UE and the UPF. In this implementation manner, the existing channels are used to feed back relevant content of subscribed events, which can improve the convenience of information feedback of radio access network devices.

Embodiment 5: The above-mentioned first indication information may be used to indicate that the first communication channel is established and that one end of the first communication channel is a wireless access network device or that a DRB between the wireless access network device and the terminal device is not established, And in the case of indicating that the first communication channel is used for reporting the subscribed event, the first communication device may establish a first communication channel with one end being a radio access network device and used for reporting the subscribed event. In this way, the first communication device can use the established first communication channel with one end as the wireless access network device to send the relevant content of the subscribed event, thereby improving the convenience of information feedback from the wireless access network device, and reducing the number of wireless access network devices. The delay of the device feedback information.

It should be noted that, in the case that the first communication device is a UE, the UE uses the first communication channel to send related content of the subscribed event, which may include that the UE uses the first communication channel to forward the related content of the subscribed event of the RAN.

According to the communication method provided by the embodiment of the present application, the first communication device can establish the first communication channel according to the first information, not establish the DRB between the radio access network device and the terminal device, and use the first communication channel when the first communication channel exists. The first communication channel sends at least one operation in the content of the subscribed event, so that the radio access network device can feed back information based on at least one of a channel with a radio access network device at one end and a manner of subscribing to an event.

Optionally, the first information may also include at least one of the following:

Channel information of the first communication channel;

Quality of Service profile (QoS profile).

In this embodiment, the channel information (tunnel info) and QoS profile of the above-mentioned first communication channel may be determined by the SMF according to the information provided by the policy control function (Policy Control Function, PCF), wherein the information provided by the above-mentioned PCF (i.e. The tenth information) may include the first policy information, for example, a Policy and Charging Control (Policy and Charging Control, PCC) rule (rule). Optionally, the above information provided by the PCF may further include fourth indication information, or the first policy information may further include fourth indication information; where the fourth indication information is used to indicate the following item: establish the first A communication channel, and one end of the first communication channel is a wireless access network device; the first communication channel is used to report subscribed events; no DRB is established between the wireless access network device and the terminal device.

In this embodiment, by carrying tunnel info and QoS profile in the first information, the establishment of the first communication channel based on the tunnel info and QoS profile can make the established first communication channel more suitable for transmission requirements.

Optionally, the method may also include:

The first communication device sends third information; the third information is used to indicate that the establishment of the first communication channel is completed.

In this embodiment, the first communication device may send the third information to the second core device, for example, the RAN may send the third information to the SMF through an N2 message (that is, an N2 Message) to notify the SMF that the establishment of the first communication channel is completed. Optionally, in the case where the first communication device is the RAN, the RAN may also send third information to the UE, so as to notify the UE that the establishment of the first communication channel is completed.

In an embodiment, when the first operation is to establish the first communication channel or not to establish a DRB between the wireless access network device and the terminal device, the first communication device may perform the operation according to the first information After the first operation, the third information is sent. For example, after the RAN establishes the first communication channel, the RAN sends third information to the SMF to notify the SMF that the first communication channel has been established, and/or, after the RAN establishes the first communication channel, sends the third information to the UE to notify the UE that the first communication channel has been established. A communication channel has been established.

In another embodiment, when the first operation is to use the first communication channel to send the second information, the first communication device may send the third information before performing the first operation according to the first information, For example, before sending the second information based on the first communication channel, the RAN sends third information to the SMF to notify the SMF that the first communication channel has been established, and/or, before the RAN sends the second information based on the first communication channel, it may Sending third information to the UE to notify the UE that the first communication channel has been established.

In this embodiment, the first communication device sends third information to indicate that the establishment of the first communication channel is completed, so that other devices can be prevented from using resources related to the first communication channel.

Optionally, before the step of receiving the first information by the first communication device, the method may further include:

The first communication device sends fourth information, where the fourth information is used to request establishment of the first communication channel.

Optionally, the first communication device may send fourth information to the second core network device (for example, SMF) to request establishment of the first communication channel. For example, the RAN may send the fourth information to the SMF through the N2 message.

In practical applications, the first communication device may trigger the establishment of the first communication channel when the HDRLL service (for example, XR service) needs to be used, and then report the relevant content of the HDRLL service-related event based on the established first communication channel, In this way, the first communication channel does not occupy resources for a long time while meeting the requirement of event reporting.

Optionally, the fourth information includes second indication information, and the second indication information is used to indicate at least one of the following items: a first communication channel is established, and one end of the first communication channel is a radio access network device ; The first communication channel is used to report the subscribed event; the DRB between the radio access network device and the terminal device is not established.

In this embodiment, by carrying the second indication information in the channel establishment request (that is, the fourth information), the first communication channel can be subsequently established based on the second indication information, so that the established first communication channel is more consistent with the first communication channel. Data transmission requirements of communication equipment.

Optionally, the method may also include:

The first communication device receives fifth information, where the fifth information is used to request associating the first communication channel with the first core network device.

In this embodiment, the first communication device may receive fifth information from the second core network device (for example, SMF) to associate the first communication channel with the first core network device, wherein the first core network device may need to be The associated core network device, so that the first core network device can receive the information fed back by the first communication device through the first communication channel. For example, the RAN may receive fifth information from the SMF through the N2 message to associate the first communication channel with the first AF, where the first AF may be the AF indicated in the fifth information, or the AF that needs to be used in multiple AFs AF of the HDRL business.

In an embodiment, when the first operation is to establish the first communication channel or not to establish a DRB between the wireless access network device and the terminal device, the first communication device may perform the operation according to the first information Fifth information is received after the first operation. For example, after the RAN establishes the first communication channel, the RAN sends the third message to the SMF to notify the SMF that the first communication channel has been established, so that the SMF can send the fifth message to the RAN to request to associate the first communication channel with the first core network equipment.

In another implementation manner, when the first operation is sending the second information by using the first communication channel, the first communication device may receive fifth information before performing the first operation according to the first information. For example, the RAN first receives fifth information from the SMF and associates the first communication channel with the first core network device, and then uses the first communication channel to send the second information to the first core network device.

In this embodiment, the established first communication channel and the AF are independent of each other, and the first communication channel can be associated with the SF when an AF needs to use the HDRLL service, so that the first communication device can The channel reports relevant content of HDRLL service-related events to the AF, so that the first communication channel can be used to report events to different AFs, improving the utilization rate and flexibility of the first communication channel.

Optionally, the fifth information may include at least one of the following:

Address information corresponding to the first core network device;

session ID;

Channel information of the first communication channel;

An identifier of the first communication channel.

In this embodiment, the address information corresponding to the first core network device may include at least one of the following: an Internet Protocol version 4 (Internet Protocol version 4, IPv4) address, an Internet Protocol version 6 (Internet Protocol version 6, IPv6) address, Fully Qualified Domain Name (Fully Qualified Domain Name, FQDN), Uniform Resource Locator (Uniform Resource Locator, URL), Ethernet address, Internet Protocol (Internet Protocol, IP) address. The above session ID may be a PDU session ID (PDU session ID). The above-mentioned identifier of the first communication channel may be, for example, a QoS Flow ID (QoS Flow ID, QFI).

For example, after receiving the fifth information, the RAN may associate the AF (that is, the first core network device) corresponding to the address information carried in the fifth information with the communication channel (the first communication channel) corresponding to the channel identifier.

In this embodiment, by carrying at least one of the address information corresponding to the first core network device, the session identifier, the channel information of the first communication channel, and the identifier of the first communication channel in the fifth information, the first communication device is more convenient. Accurately and quickly associating the first communication channel with the first core network device.

Optionally, the method may also include:

The first communication device sends sixth information, where the sixth information is used to request activation of the first communication channel.

In this embodiment, the above-mentioned first communication device may send sixth information to the SMF, for example, the RAN may send a tunnel activation request (Tunnel Activation request) message to the SMF to request activation of the first communication channel.

In an embodiment, when the first operation is to establish the first communication channel or not to establish a DRB between the wireless access network device and the terminal device, the first communication device may perform the operation according to the first information The sixth message is sent after the first operation. For example, after the first communication channel is established, the RAN may send sixth information to the SMF to request activation of the first communication channel if information needs to be reported.

In another implementation manner, when the first operation is sending the second information by using the first communication channel, the first communication device may send sixth information before performing the first operation according to the first information. For example, the RAN first sends sixth information to the SMF to request activation of the first communication channel, and then uses the activated first communication channel to send the second information.

In practical applications, the first communication channel may be in an inactive state, and the first communication channel may be activated when the first communication device needs to report information, which can save power consumption.

Optionally, the sixth information may include at least one of the following:

session ID;

Channel information of the first communication channel;

An identifier of the first communication channel.

In this embodiment, the sixth information includes at least one of a session identifier, channel information of the first communication channel, and an identifier of the first communication channel, which facilitates more accurate and rapid determination of the channel that needs to be activated.

Optionally, the second information includes at least one of the following:

Information about the actual transmission of HDRLL services by radio access network equipment;

Wireless access network equipment transmission conditions;

Wireless access network device configuration information;

Information related to HDRLL services recommended by radio access network equipment;

QoS adjustment request for HDRLL service.

In this embodiment, the actual transmission of the HDRLL service by the wireless access network device may include but not limited to at least one of the following: the transmission error rate of one or more transmission units; the transmission success rate of one or more transmission units; The ratio of transmission error rates of different transmission units; the ratio of transmission success rates of different transmission units; the transmission delay of one or more transmission units; the ratio of transmission delays of different transmission units; HDRLL service quality indication; re-buffering time or duration time.

Wherein, the above-mentioned transmission unit may include but not limited to at least one of the following: data packet; data frame; data stream; application data unit. Wherein, the above-mentioned data packet may include at least one of an IP data packet, a left-eye data packet provided to the user, and a right-eye data packet provided to the user.

The transmission condition of the radio access network device may include but not limited to at least one of the following: channel quality indication; service burst volume; channel deep fading indication; user scheduling congestion indication.

The radio access network device configuration information may include but not limited to at least one of the following: connected discontinuous reception (Connected Discontinuous Reception, CDRX) configuration information; CDRX configuration update information; wake up signal (Wake Up Sinal, WUS) configuration Information; Physical Downlink Shared Channel (PDCCH) monitoring occasion information; PDCCH adaptive monitoring information.

The information related to the HDRLL service recommended by the wireless access network device may include but not limited to at least one of the following: the value of the service characteristic of the HDRLL service recommended by the wireless access network device; the service value of the HDRLL service recommended by the wireless access network device The adjustment value of the feature; the adjustment mode of the service feature of the HDRLL service recommended by the radio access network equipment; the ratio between different service features of the HDRLL service recommended by the radio access network equipment.

Among them, the above service characteristics may include but not limited to at least one of the following: the data volume of one or more transmission units; the ratio of the number of different transmission units; the service packet size of one or more transmission units; Time-related information; quantization parameters; generation method of HDRLL service; transmission method of HDRLL service; adjustment of encoding method of HDRLL service. Wherein, the above-mentioned generation method of the HDRLL service may refer to a compression coding method. The above transmission manner, for example, transmits the left and right eye data simultaneously or alternately transmits the left and right eye data.

The above-mentioned QoS adjustment request may include but not limited to at least one of the following: QFI value; 5G QoS identifier (5G QoS Identifier, 5QI) value; priority.

Please refer to FIG. 3. FIG. 3 is a flowchart of another communication method provided by the embodiment of the present application. The method may be executed by the first core network device, as shown in FIG. 3, including the following steps:

Step 301, the first core network device sends seventh information, the seventh information is used to request the establishment of a first communication channel, and the first communication channel is used to report subscribed events, or one end of the first communication channel is Wireless access network equipment.

In this embodiment, the foregoing first core network device may be an AF. The above subscribed events may include but not limited to HDRLL service-related events, for example, cloud game-related events, AR-related events, VR-related events, or XR-related events. Optionally, the above-mentioned first communication channel is used for reporting the subscribed event may refer to that the first communication channel is used for the wireless access network device to report the subscribed event.

As for one end of the above-mentioned first communication channel being a wireless access network device, optionally, the above-mentioned first communication channel may be a channel between the wireless access network device and the core network device, for example, the above-mentioned first communication channel may be a wireless The channel between the access network device and the AF, or the channel between the wireless access network device and the UPF, etc.

For the above step 301, the first core network device may send seventh information to the PCF to request establishment of the first communication channel. For example, the AF may send the seventh information to the PCF through the AF session QoS creation request (Nnef_AFsessionWithQoS_Create request) message when the RAN needs to report HDRLL service (for example, XR service) related events, so that the PCF can generate the seventh information based on the seventh information. A policy information, and send the tenth information carrying the first policy information to the SMF, and then the SMF can send the first information to the RAN based on the tenth information sent by the PCF, so that the RAN can establish the first communication channel and pass the first communication Channel feedback information to AF.

In this embodiment, when the first core network device needs feedback information from the first communication device, it can request to establish the first communication channel, so that the first communication channel can meet the needs of the first core network device to obtain feedback information and at the same time Occupy resources for a long time.

Optionally, the seventh information includes at least one of the following: address information corresponding to the first core network device; third indication information;

Wherein, the third indication information is used to indicate at least one of the following items: a first communication channel is established, and one end of the first communication channel is a radio access network device; the first communication channel is used to report subscribed events.

In this embodiment, the address information corresponding to the first core network device may include at least one of the following: IPv4 address, IPv6 address, FQDN, URL, and Ethernet address.

In this embodiment, the seventh information includes address information corresponding to the first core network device and third indication information, which facilitates the rapid establishment of the first communication channel and also makes the established first communication channel more suitable for transmission requirements.

Optionally, the method may also include:

The first core network device sends eighth information requesting to subscribe to an event, and the eighth information includes at least one of the following: subscription event information; address information corresponding to the first core network device; a session identifier; the first Channel information of the communication channel; an identifier of the first communication channel.

In this embodiment, the eighth information may be sent before or after or simultaneously with the step of sending the seventh information by the first core network device. Optionally, the first core network device may send the eighth information to the third core network device (eg, PCF), for example, the AF sends an authorization subscription (Npcf_Authorization_Subscribe) message to the PCF to request to subscribe to events. For example, the first core network device may send the eighth information to the PCF to request to subscribe to the event after the step of sending the seventh information by the first core network device.

In this embodiment, by carrying the address information corresponding to the first core network device, the session identifier, the channel information of the first communication channel, and the identifier of the first communication channel in the eighth information, it is convenient to associate the subscribed event with the first communication channel. .

Optionally, the method may also include:

The first core network device receives ninth information, where the ninth information includes at least one of the following: channel information of the first communication channel; an identifier of the first communication channel; a session identifier, and a terminal device identifier.

In this embodiment, the first core network device may receive ninth information from the SMF. For example, the first core network device may receive ninth information from the SMF after sending the seventh information and before sending the eighth information requesting to subscribe to an event, so that the first core network device may send the eighth information based on the ninth information, so that the The eighth information may carry at least one item of channel information of the first communication channel, an identifier of the first communication channel, and a session identifier.

Please refer to FIG. 4. FIG. 4 is a flowchart of another communication method provided by the embodiment of the present application. The method may be executed by the second core network device, as shown in FIG. 4, including the following steps:

Step 401, the second core network device receives tenth information; the tenth information includes first policy information.

In this embodiment, the second core network device may be an SMF. The foregoing first policy information may be, for example, a PCC rule. The second core network device may receive the tenth information from the PCF. For example, the SMF may receive a session management policy control update response (Npcf_SMPolicyControl_Update response) message from the PCF, and the Npcf_SMPolicyControl_Update response message may carry PCC rules.

Step 402, the second core network device sends first information according to the tenth information; the first information includes first indication information, and the first indication information is used to indicate at least one of the following items: establish a first A communication channel, and one end of the first communication channel is a radio access network device; the first communication channel is used to report subscribed events; and the DRB between the terminal device and the radio access network device is not established.

In this embodiment, the second core network device can send the first information to the first communication device according to the tenth information, for example, the SMF can derive the QoS configuration (QoS profile) based on the first policy information, and generate the first channel channel information (tunnel info), and send the first information carrying the first indication information, the QoS configuration and the channel information of the first channel to the RAN. Wherein, the SMF sending the first information to the RAN may be that the SMF forwards the first information via the core network access and mobility management function (Core Access and Mobility Management Function, AMF). The first information is forwarded to the RAN through an N2 message.

It should be noted that, for relevant content of the first information in this embodiment, reference may be made to relevant descriptions of the embodiment shown in FIG. 2 , and details are not repeated here.

In this embodiment, the second core network device sends the first information to the first communication device, and then the first communication device can establish a first communication channel based on the first information, and not establish a DRB between the wireless access network device and the terminal device. and using the first communication channel to send at least one operation in the relevant content of the subscribed event when the first communication channel exists, so that the RAN can quickly feed back information based on the communication channel with the RAN at one end, or can be based on subscription Feedback information in the form of events.

Optionally, the first information further includes at least one of the following:

Channel information of the first communication channel;

QoS profile.

Optionally, the tenth information further includes fourth indication information, or, the first policy information includes fourth indication information;

In this embodiment, the tenth information above further includes fourth indication information or the first policy information includes fourth indication information, which facilitates the second core network device to quickly determine the first indication information based on the fourth indication information.

Optionally, the second core network device does not generate a QoS rule when receiving the tenth information.

For example, the SMF may not generate a QoS rule when receiving an instruction to establish a first communication channel with a radio access network device at one end, so as to save resources.

Optionally, the method may also include:

The second core network device sends fifth information, where the fifth information is used to request associating the first communication channel with the first core network device.

In this embodiment, after sending the first information to the first communication device, the second core network device may send fifth information to the first communication device to request associating the first communication channel with the first core network device. For example, the SMF sends the first information to the RAN, and the RAN establishes the first communication channel based on the first information and sends an acknowledgment message that the channel establishment is completed to the SMF, and the SMF sends channel-related information (for example, tunnel info, UE ID, session identifier, and channel At least one of the identifiers) is sent to the AF, and the AF sends a message requesting to subscribe to the event to the PCF. The PCF sends the address information corresponding to the first core network device and channel-related information to the SMF according to the subscription event, and the SMF sends a message carrying the channel to the RAN. A request message for related information, to request the RAN to associate the AF with the previously established channel.

In this embodiment, the second core network device sends an association request to associate the first communication channel with a certain core network device, so that the first communication channel can be used by different core network devices to receive and report information, and the efficiency of the first communication channel can be improved. Usability and flexibility.

Optionally, the fifth information includes at least one of the following:

Address information corresponding to the first core network device;

session ID;

Channel information of the first communication channel;

An identifier of the first communication channel.

For the relevant content of the fifth information in this embodiment, reference may be made to the relevant description of the embodiment shown in FIG. 2 , and details are not repeated here.

Optionally, the method also includes:

The second core network device receives sixth information, where the sixth information is used to request activation of the first communication channel.

In this embodiment, the second core network device may receive sixth information from the first communication device, for example, the SMF may receive a channel activation request message from the RAN, and may activate the first communication channel in response to the sixth information.

In practical applications, the established first communication channel may be in an inactive state, and when the first communication device needs to report information, the sixth information is sent to the second core network device to activate the first communication channel, which can save power consumption.

Optionally, the sixth information includes at least one of the following:

session ID;

Channel information of the first communication channel;

An identifier of the first communication channel.

For the relevant content of the sixth information in this embodiment, refer to the relevant description of the embodiment shown in FIG. 2 , and details are not repeated here.

Optionally, the method also includes:

The second core network device sends ninth information, where the ninth information includes at least one of the following: channel information of the first communication channel; an identifier of the first communication channel; a session identifier, and a terminal device identifier.

In this embodiment, the second core network device may send ninth information to the first core network device (for example, AF). For example, the SMF may send ninth information to the AF after receiving the acknowledgment information (that is, the third information) sent by the RAN that the establishment of the first communication channel is completed, so that the AF may send the eighth information requesting to subscribe to the event based on the ninth information. information, the information may carry at least one of channel information of the first communication channel, an identifier of the first communication channel, and a session identifier.

Please refer to FIG. 5. FIG. 5 is a flow chart of another communication method provided by the embodiment of the present application. The method may be executed by a third core network device, as shown in FIG. 5, including the following steps:

Step 501. The third core network device sends tenth information; the tenth information includes first policy information and fourth indication information, or the tenth information includes first policy information, and the first policy information includes Fourth instruction information;

In this embodiment, the foregoing third core network device may be a PCF. The third core network device may send the tenth information to the SMF. For example, the PCF may generate the first policy based on the AF session QoS creation request (Nnef_AFsessionWithQoS_Create request) message sent by the AF or the session management policy control update request (Npcf_SMPolicyControl_Update request) message sent by the SMF information, and send the tenth information to the SMF, and then the SMF can send the first information to the RAN based on the tenth information sent by the PCF, so that the RAN can establish a first communication channel and feed back information to the AF through the first communication channel. Wherein, the above-mentioned Nnef_AFsessionWithQoS_Create request message and Npcf_SMPolicyControl_Update request message may both carry indication information for instructing the PCF to establish the first communication channel or the first communication channel for reporting the subscribed event.

It should be noted that, for the relevant content of the tenth information in this embodiment, reference may be made to the relevant description of the embodiment shown in FIG. 4 , and details are not repeated here.

In this embodiment, the third core network device sends the tenth information to the second core network device, and then the second core network device can send the first information to the first communication device based on the tenth information, so that the first communication device can send the first information based on the first communication device. A message executes establishing a first communication channel, not establishing a DRB between the wireless access network device and the terminal device, and using the first communication channel to send at least the related content of the subscribed event if the first communication channel exists An operation that enables the RAN to quickly feed back information based on a communication channel with the RAN at one end, or to feed back information based on subscription events. In addition, the above tenth information further includes fourth indication information or the above first policy information includes fourth indication information, so that the second core network device can quickly determine the first indication information based on the fourth indication information.

Optionally, the method may also include:

The third core network device receives seventh information or eleventh information, where the seventh information or eleventh information is used to request establishment of the first communication channel, and the eleventh information is sent according to the first communication device The fourth information is obtained.

In an embodiment, before the third core network device sends the tenth information, the third core network device receives seventh information from the first core network device (for example, AF), and may send the tenth information based on the seventh information .

In another embodiment, before the third core network device sends the tenth information, the third core network device receives the eleventh information from the SMF, where the eleventh information may be received by the SMF from the first communication device The fourth information may also be information newly generated by the SMF based on the fourth information received by the SMF from the first communication device.

It should be noted that, for the relevant content of the seventh information in this embodiment, reference may be made to the relevant description of the embodiment shown in FIG. 3 , which will not be repeated here.

Optionally, the eleventh information includes fifth indication information, and the fifth indication information is used to indicate at least one of the following items: a first communication channel is established, and one end of the first communication channel is a wireless access network The device; the first communication channel is used to report subscribed events.

Optionally, the method may also include:

The third core network device receives eighth information requesting to subscribe to an event, and the eighth information includes at least one of the following: subscription event information; address information corresponding to the first core network device; a session identifier; the first Channel information of the communication channel; an identifier of the first communication channel.

In this embodiment, the third core network device may receive the eighth information from the first core network device. The third core network device may receive the eighth information from the first core network device after or before the step of sending the tenth information by the third core network device.

It should be noted that, for the relevant content of the eighth information in this embodiment, reference may be made to the relevant description of the embodiment shown in FIG. 3 , which will not be repeated here.

In addition, it should be noted that the various implementation manners of the above-mentioned embodiments can be combined arbitrarily according to requirements.

The embodiment of the application is described below in conjunction with examples:

Example 1: Subscribing to events and channel establishment are performed at the same time.

As shown in Figure 6, the communication method provided by the embodiment of the present application includes the following steps:

In step a0, the PDU session is established.

Step a1, the AF sends a QoS flow modification message (ie, the above-mentioned seventh information) to the PCF via the NEF, for example, the Nnef_AFsessionWithQoS_Create request message, and the QoS flow modification message may include indication #1 (indication#1) (ie, the above-mentioned third indication information), and the indication #1 may be used to instruct the PCF to establish the first channel (that is, the above-mentioned first communication channel).

In step a2, the NEF authorizes the request of the AF (Authorization), and at the same time, the NEF may apply corresponding policies to control the predefined authorized QoS for the AF.

In step a3, the NEF interacts with the PCF and provides information by triggering a policy authorization creation request (Npcf_PolicyAuthorization_Create request) message.

In this step, the NEF may send the indication #1 sent by the AF to the PCF.

Step a4, if the request is authorized, the PCF derives the required QoS parameters according to the information provided by the NEF, judges whether to allow the QoS (according to the PCF configuration of this AF), and notifies the NEF of the result.

For example, the PCF sends a policy authorization creation response (Npcf_PolicyAuthorization_Create response) message to the NEF.

In this step, the PCF can derive the QoS parameters according to the indication #1 (indication#1) provided by the AF and related parameters provided by the AF in related technologies, and generate the first policy information, for example, Policy and Charging Control (Policy and Charging Control , PCC) rules (rule).

Step a5, NEF sends to AF a session creation response (Nnef_AFsessionWithQoS_Create response) message carrying QoS, the Nnef_AFsessionWithQoS_Create response message may carry a transaction reference identifier (Transaction Reference ID) and a result (Result), and the result indicates whether the request is authorized.

In step a6, the NEF sends a policy authorization subscription (Npcf_PolicyAuthorization_Subscribe) message to the PCF to subscribe to the notification of the resource allocation status.

Step a7, when the event condition is satisfied, for example, when the establishment of the transmission resource corresponding to the QoS update succeeds or fails, the PCF sends a policy authorization notification (Npcf_PolicyAuthorization_Notify) message to the NEF to notify the event.

In step a8, the NEF sends a session notification with QoS (Nnef_AFsessionWithQoS_Notify) message with an event reported by the PCF to the AF.

In step a9, the AF sends a request message to the PCF to subscribe to an event, such as an XR event, and carries a target address, such as a target IP, in the request message. For example, the AF sends an authorization subscription (Npcf_Authorization_Subscribe) message to the PCF, and the Npcf_Authorization_Subscribe message may carry subscription event information (Event info) and a target IP (Target IP).

In step a10, the PCF makes a policy decision. The PCF may determine that updated policy information or new policy information needs to be sent to the SMF, that is, the above-mentioned first policy information.

In step a11, the PCF sends a session management policy control update notification request (Npcf_SMPolicyControl_UpdateNotify request) message, wherein the Npcf_SMPolicyControl_UpdateNotify request may include update policy information about the PDU session, that is, the above-mentioned first policy information.

Optionally, the Npcf_SMPolicyControl_UpdateNotify request may also carry an indication #2 (indication #2), where the indication #2 is used to indicate that the first channel is used for event reporting, or to indicate the establishment of a first channel for event reporting, Or indicate not to establish a DRB between the radio access network device and the terminal device, or indicate not to generate a QoS rule. It should be noted that the indication #2 may be the fourth indication information in the foregoing embodiment.

In step a12, the SMF confirms the PCF request through the session management policy control update notification response (Npcf_SMPolicyControl_UpdateNotify response).

In this step, the SMF derives the QoS configuration (QoS profile) according to the first policy information, and generates the channel information (tunnel info) of the first channel. At the same time, the SMF may carry an indication #3, which may be used to instruct the RAN not to establish a DRB with the UE, or to instruct the RAN to establish a first channel for event reporting, or to indicate that the first channel is used for event reporting.

It should be noted that, in related technologies, the SMF generally generates a QoS rule (QoS rule) and sends it to the UE, but in this example, the SMF may not generate a QoS rule according to the instruction information sent by the PCF, that is, instruction #2. The above indication #3 may be the first indication information in the above embodiment.

In step a13, the SMF sends the QoS configuration, channel information and indication #3 obtained in step S12 to the RAN via the AMF.

For example, in this step, the SMF may send a Namf_Communication_N1N2MessageTransfer message to the AMF, and the Namf_Communication_N1N2MessageTransfer message carries QoS configuration, channel information and indication #3.

In step a14, the AMF forwards the N2 message (N2 Message) sent by the SMF to the RAN.

In step a15, the RAN notifies the UE that the first channel has been established, that is, the event reporting channel resource between the AF and the RAN has been established.

In step a16, according to the information provided in step a13, after successfully establishing the first channel, the RAN may send a confirmation message of channel establishment completion to the SMF.

In this step, the RAN may send a tunnel establishment acknowledgment (Tunnel establishment ACK) to the SMF through an N2 message (N2 Message). It should be noted that, according to instruction #3, the RAN does not establish a DRB with the UE.

In step a17, the AMF forwards the N2 SM information to the SMF through the PDU session update session management context request (Nsmf_PDUSession_UpdateSMContext request) service.

In step a18, the SMF responds with a PDU session update session management context response (Nsmf_PDUSession_UpdateSMContext response).

In step S19, the SMF may send an N4 session modification request (N4 Session Modification request) message to the UPF to update the N4 session of the UPF involved in the PDU session modification. If a new QoS flow is to be created, the SMF updates the UPF with the UL packet inspection rules for the new QoS flow.

In step a20, the UPF may send an N4 Session Modification response (N4 Session Modification response) message to the SMF.

In step a21, because it is uncertain when the RAN will report the information, the first channel may be in an inactive state. Therefore, the RAN may request to activate the established first channel by sending a request message. Wherein, the request message may carry at least one of the following: tunnel information (tunnel info), PDU session ID (PDU session ID), QoS flow ID (QoS Flow ID, QFI).

For example, the RAN may send a tunnel activation request (Tunnel Activation request) message to the SMF, and the tunnel activation request message may carry tunnel information (tunnel info).

Optionally, the request message may be forwarded through the AMF, which is not limited in this example. It should be noted that the above request information may be the sixth information in the above embodiment.

In step a22, the SMF returns a tunnel activation response (Tunnel Activation response) to the RAN.

Optionally, the channel activation response message may be forwarded through the AMF, which is not limited in this example.

In step a23, the RAN reports subscription event information through the established channel (namely the first channel).

The subscription event information may include at least one of the following: the fact that the radio access network side equipment actually receives and transmits multimedia high data rate low delay (HDRLL) services; the transmission conditions of the radio access network equipment; the configuration information of the radio access network equipment; Information related to HDRLL multimedia services recommended by radio access network side equipment; QoS adjustment requests for multimedia HDRLL services.

In step a24, the UPF forwards the information received in step a23 to the AF.

For example, the UPF may forward the information received in step a23 to the AF through an event exposure notification (Nupf_EventExposure_Notify).

It should be noted that the above step a15, step a17 to step a22 in this example may be optional steps, that is, the above step a15, step a17 to step a22 in this example may or may not be performed.

Example 2: Subscribing to events and channel establishment are independent of each other, and they will be associated later.

As shown in Figure 7, the communication method provided by the embodiment of the present application includes the following steps:

In step b1, the UE needs to use HDRLL services, such as XR services, to establish a PDU session, or the UE needs to use HDRLL services to establish a PDU session for event reporting.

In step b2, the RAN sends a request message for establishing the first channel to the SMF, and the request message may carry an indication information for instructing the establishment of the first channel for event reporting, or indicating that the first channel is used for reporting subscribed events.

For example, the RAN may send an N2 message (N2 Message) to the SMF. The N2 message carries an indication #4 (indication #4), and the indication #4 is used to indicate the establishment of the first channel for event reporting, or indicate the first channel Used to report subscribed events.

It should be noted that the above-mentioned first channel may be the first communication channel in the above-mentioned embodiment. The above indication #4 may be the second indication information in the above embodiment.

In step b3, the AMF forwards the message in step b2 to the SMF.

For example, the AMF may send a PDU session update session management context (Namf_PDUSession_UpdateSMContext) message to the SMF, and the Namf_PDUSession_UpdateSMContext message carries the above indication #4 or indication #5, wherein the above indication #5 may be generated by the AMF according to the indication #4, and may be used Instructing to establish a first channel for event reporting, or indicating that the first channel is used for reporting subscribed events.

Step b4, according to the instruction information in step b2 or step b3, the SMF sends a request message to the PCF to request a policy update, the request message may carry an instruction information, and the instruction information may indicate the establishment of a first channel for event reporting, Or indicate that the first channel is used to report subscribed events.

For example, the SMF sends a session management policy control update request (Npcf_SMPolicyControl_Update request) message to the PCF, and the Npcf_SMPolicyControl_Update request message carries an indication #6, and the indication #6 may indicate that the first channel for event reporting is established, or indicate that the first channel Used to report subscribed events.

In step b5, the PCF performs a policy decision (Policy decision), that is, the PCF deduces the QoS parameters according to the request message in the step b4, and generates the first policy information, i.e. the PCC rule.

In step b6, the PCF sends the information obtained in step b5 to the SMF.

For example, the PCF sends a session management policy control update response (Npcf_SMPolicyControl_Update response) message to the SMF, and the Npcf_SMPolicyControl_Update response message may carry PCC rules.

Optionally, the message sent by the PCF to the SMF may also carry indication information, such as indication #7, which may be used to indicate that the first channel is used for event reporting, or to indicate the establishment of a first channel for event reporting, Or indicate not to establish a DRB between the radio access network device and the terminal device, or indicate not to generate a QoS rule. It should be noted that the indication #7 may be the fourth indication information in the foregoing embodiment.

In step b7, the SMF may derive the QoS configuration according to the information provided by the PCF in step b5 or step b6, and generate tunnel information (tunnel info) of the first tunnel. The SMF may send an instruction message to the RAN, such as instruction #8, to instruct the RAN not to establish a DRB with the UE, or to instruct the RAN to establish the first channel. Optionally, the SMF may also send at least one item of the foregoing QoS configuration and channel information of the first channel to the RAN.

For example, the SMF may send indication #8, QoS configuration and channel information of the first channel to the RAN through the N2 message.

In addition, it should be noted that in this example, the SMF may not generate a QoS rule for the UE.

Step b8, according to the information provided in step b7, after successfully establishing the first channel, the RAN sends a confirmation message of channel establishment completion to the SMF.

It should be noted that, according to the indication information, the RAN may not establish the DRB with the UE.

In step b9, the SMF sends channel-related information (for example, at least one of tunnel info, UE ID, session ID and channel ID) to the AF. It can be understood that the SMF may send channel-related information to the AF via several network elements.

Step b10, AF sends a request message to PCF to subscribe to an event, for example, an XR event, the request message can carry the target address and the channel related information obtained in step b9 (that is, at least one of tunnel info, UE ID, session ID and channel ID) one).

For example, the AF sends an authorization subscription (Npcf_Authorization_Subscribe) message to the NEF, and the Npcf_Authorization_Subscribe message may carry at least one of the following items: subscription event information, target IP, session ID, and QoS flow ID.

Step b11, NEF authentication.

In step b12, the NEF forwards the message sent in step b10 to the PCF after the authentication is successful.

For example, the NEF forwards the Npcf_Authorization_Subscribe message to the PCF.

In step b13, the PCF sends the target address and channel-related information obtained in step b9 to the SMF according to the subscription event.

For example, the PCF may send a session management policy control update notification request (Npcf_SMPolicyControl_UpdateNotify request) message to the SMF, and the Npcf_SMPolicyControl_UpdateNotify request message may carry a target IP, a session ID and a QoS flow ID.

In step b14, the SMF sends a request message carrying channel-related information to the RAN to request the RAN to associate the AF with the previously established channel, for example, associate the AF corresponding to the target IP with the channel corresponding to the QoS flow ID.

For example, the SMF may send an N2 message to the RAN, and the N2 message carries a target IP, a session ID and a QoS flow ID.

In step b15, the RAN replies with a confirmation message.

In step b16, the SMF replies with a confirmation message.

For example, the SMF may send a session management policy control update notification response (Npcf_SMPolicyControl_UpdateNotify response) message to the PCF.

In step b17, the PCF replies with a confirmation message, confirming that the event subscription is successful.

For example, the PCF may send an authorization subscription response (Npcf_Authorization_Subscribe Response) message to the AF to confirm that the event subscription is successful.

In step b18, the RAN reports subscription event information through the established channel (namely the first channel).

The subscription event information (that is, the above-mentioned second information) may include at least one of the following: the fact that the wireless access network side device actually receives and transmits multimedia high data rate low delay (HDRLL) services; the transmission condition of the wireless access network device; Configuration information of radio access network equipment; information related to HDRLL multimedia services recommended by radio access network side equipment; QoS adjustment requests for multimedia HDRLL services.

In step b19, the UPF forwards the information received in step b18 to the AF.

For example, the UPF may forward the information received in step a23 to the AF through an event exposure notification (Nupf_EventExposure_Notify) message.

It should be noted that, the communication method provided in the embodiment of the present application may be executed by a communication device, or a control module in the communication device for executing the communication method. In the embodiment of the present application, the communication device provided in the embodiment of the present application is described by taking the communication device executing the communication method as an example.

Please refer to FIG. 8. FIG. 8 is a structural diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 8, the communication device 800 includes:

The receiving module 801 is configured to receive first information; the first information includes first indication information, and the first indication information is used to indicate at least one of the following: a first communication channel is established, and the first communication channel One end is a wireless access network device; the first communication channel is used to report subscribed events; no data radio bearer DRB between the wireless access network device and the terminal device is established;

An execution module 802, configured to execute a first operation according to the first information; the first operation includes at least one of the following: establishing the first communication channel; not establishing a DRB between the wireless access network device and the terminal device ; If the first communication channel exists, use the first communication channel to send the second information; wherein, the second information is related content of the subscribed event.

Channel information of the first communication channel;

Quality of service configuration QoS profile.

Optionally, the device also includes:

The first sending module is configured to send third information; the third information is used to indicate that the establishment of the first communication channel is completed.

Optionally, the device also includes:

The second sending module is configured to send fourth information before the step of receiving the first information by the first communication device, and the fourth information is used to request establishment of the first communication channel.

Optionally, the device also includes:

The first receiving module is configured to receive fifth information, where the fifth information is used to request associating the first communication channel with the first core network device.

Optionally, the fifth information includes at least one of the following:

Address information corresponding to the first core network device;

session ID;

Channel information of the first communication channel;

An identifier of the first communication channel.

Optionally, the device also includes:

A third sending module, configured to send sixth information, where the sixth information is used to request activation of the first communication channel.

Optionally, the sixth information includes at least one of the following:

session ID;

Channel information of the first communication channel;

An identifier of the first communication channel.

Optionally, the second information includes at least one of the following:

Wireless access network equipment transmission conditions;

Wireless access network device configuration information;

QoS adjustment request for HDRLL service.

The communication device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a wireless access network device or a terminal device. Exemplarily, the wireless access network device may include but not limited to the type of wireless access network device 12 listed above, and the terminal device may include but not limited to the type of terminal device 11 listed above.

The communication device provided by the embodiment of the present application can realize each process realized by the method embodiment in FIG. 2 and achieve the same technical effect. To avoid repetition, details are not repeated here.

Please refer to FIG. 9. FIG. 9 is a structural diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 9, the communication device 900 includes:

The fourth sending module 901 is configured to send seventh information, the seventh information is used to request establishment of a first communication channel, and the first communication channel is used to report subscribed events, or one end of the first communication channel is Wireless access network equipment.

Optionally, the device also includes:

The fourth sending module is configured to send eighth information requesting to subscribe to an event, and the eighth information includes at least one of the following: subscription event information; address information corresponding to the first core network device; session identifier; first communication channel channel information; the identifier of the first communication channel; wherein, the first communication channel is used for event reporting by radio access network devices.

Optionally, the device also includes:

The second receiving module is configured to receive ninth information, where the ninth information includes at least one of the following: channel information of the first communication channel; an identifier of the first communication channel; a session identifier, and a terminal device identifier.

The communication device in this embodiment of the present application may be a device, a device with an operating system or an electronic device, or it may be a component, an integrated circuit, or a chip in a core network device. Exemplarily, the core network equipment may include but not limited to the types of core network equipment 13 listed above.

The communication device provided by the embodiment of the present application can realize each process realized by the method embodiment in FIG. 3 and achieve the same technical effect. To avoid repetition, details are not repeated here.

Please refer to FIG. 10. FIG. 10 is a structural diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 10, the communication device 1000 includes:

The third receiving module 1001 is configured to receive tenth information; the tenth information includes first policy information;

The fifth sending module 1002 is configured to send first information according to the tenth information; the first information includes first indication information, and the first indication information is used to indicate at least one of the following items: establish a first communication channel , and one end of the first communication channel is a radio access network device; the first communication channel is used to report subscribed events; a data radio bearer DRB between the terminal device and the radio access network device is not established.

Channel information of the first communication channel;

Quality of service configuration QoS profile.

Optionally, the device also includes:

A sixth sending module, configured to send fifth information, where the fifth information is used to request associating the first communication channel with the first core network device.

Optionally, the fifth information includes at least one of the following:

Address information corresponding to the first core network device;

session ID;

Channel information of the first communication channel;

An identifier of the first communication channel.

Optionally, the device also includes:

A fourth receiving module, configured to receive sixth information, where the sixth information is used to request activation of the first communication channel.

Optionally, the sixth information includes at least one of the following:

session ID;

Channel information of the first communication channel;

An identifier of the first communication channel.

Optionally, the device also includes:

The seventh sending module is configured to send ninth information, where the ninth information includes at least one of the following: channel information of the first communication channel; an identifier of the first communication channel; a session identifier, and a terminal device identifier.

The communication device in this embodiment of the present application may be a device, a device with an operating system or an electronic device, or it may be a component, an integrated circuit, or a chip in a core network device. Exemplarily, the core network device may include but not limited to the types of core network device 13 listed above.

The communication device provided in the embodiment of the present application can implement the various processes implemented in the method embodiment in FIG. 4 and achieve the same technical effect. To avoid repetition, details are not repeated here.

Please refer to FIG. 11. FIG. 11 is a structural diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 11, the communication device 1100 includes:

An eighth sending module 1101, configured to send tenth information; the tenth information includes first policy information and fourth indication information, or the tenth information includes first policy information, and the first policy information includes Fourth instruction information;

Wherein, the fourth indication information is used to indicate at least one of the following: establish a first communication channel, and one end of the first communication channel is a wireless access network device; the first communication channel is used to report subscribed events; A data radio bearer DRB between the radio access network device and the terminal device is established.

Optionally, the device also includes:

The fifth receiving module is configured to receive seventh information or eleventh information, the seventh information or eleventh information is used to request establishment of the first communication channel, and the eleventh information is sent according to the first communication device The fourth information is obtained.

Optionally, the device also includes:

The sixth receiving module is configured to receive eighth information requesting to subscribe to an event, and the eighth information includes at least one of the following: subscription event information; address information corresponding to the first core network device; session identifier; the first communication channel channel information; the identifier of the first communication channel.

The communication device provided by the embodiment of the present application can realize each process realized by the method embodiment in FIG. 5 and achieve the same technical effect. To avoid repetition, details are not repeated here.

Optionally, as shown in FIG. 12 , this embodiment of the present application further provides a communication device 1200, including a processor 1201, a memory 1202, and programs or instructions stored in the memory 1202 and operable on the processor 1201, For example, when the communication device 1200 is a wireless access network device or a terminal device, when the program or instruction is executed by the processor 1201, the various processes in the above wireless access network device or terminal device method embodiments can be achieved, and the same technical Effect. When the communication device 1200 is a core network device, when the program or instruction is executed by the processor 1201, each process of the above embodiment of the core network device side communication method can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here. .

The embodiment of the present application also provides a wireless access network device, including a processor and a communication interface, wherein the communication interface is used to receive first information; the first information includes first indication information, and the first indication The information is used to indicate at least one of the following items: establish a first communication channel, and one end of the first communication channel is a wireless access network device; the first communication channel is used to report subscribed events; do not establish a wireless access network device and A DRB between terminal devices; the processor is configured to perform a first operation according to the first information; the first operation includes at least one of the following: establishing the first communication channel; not establishing a wireless access network device and The DRB between terminal devices; if the first communication channel exists, the first communication channel is used to send the second information; wherein the second information is related content of the subscribed event. This communication device embodiment corresponds to the above wireless access network device side method embodiment, and each implementation process and implementation method of the above method embodiment can be applied to this wireless access network device embodiment, and can achieve the same technical effect.

Specifically, the embodiment of the present application also provides a radio access network device. As shown in FIG. 13 , the radio access network device 1300 includes: an antenna 131 , a radio frequency device 132 , and a baseband device 133 . The antenna 131 is connected to the radio frequency device 132 . In the uplink direction, the radio frequency device 132 receives information through the antenna 131, and sends the received information to the baseband device 133 for processing. In the downlink direction, the baseband device 133 processes the information to be sent and sends it to the radio frequency device 132 , and the radio frequency device 132 processes the received information and sends it out through the antenna 131 .

The foregoing frequency band processing apparatus may be located in the baseband apparatus 133 , and the method performed by the wireless access network device in the above embodiments may be implemented in the baseband apparatus 133 , where the baseband apparatus 133 includes a processor 134 and a memory 135 .

The baseband device 133 can include at least one baseband board, for example, a plurality of chips are arranged on the baseband board, as shown in FIG. The radio access network equipment shown in the above method embodiments operates.

The baseband device 133 may also include a network interface 136 for exchanging information with the radio frequency device 132, such as a common public radio interface (Common Public Radio Interface, CPRI).

Specifically, the radio access network device in this embodiment of the present application further includes: instructions or programs stored in the memory 135 and operable on the processor 134, and the processor 134 calls the instructions or programs in the memory 135 to execute the The method executed by each module achieves the same technical effect, so in order to avoid repetition, it is not repeated here.

The embodiment of the present application also provides a core network device, including a processor and a communication interface, wherein the communication interface is used to send seventh information, and the seventh information is used to request establishment of a first communication channel, and the first The communication channel is used to report subscribed events, or one end of the first communication channel is a radio access network device;

or

The core network device embodiment corresponds to the above-mentioned core network device-side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to the core network device embodiment, and can achieve the same technical effect.

Specifically, the embodiment of the present application also provides a core network device. As shown in FIG. 14 , the core network device 1400 includes: a processor 1401 , a memory 1402 , a bus interface 1403 and a transceiver 1404 , wherein the processor 1401 , the memory 1402 and the transceiver 1404 are all connected to the bus interface 1403 .

Wherein, in the embodiment of the present application, the core network device 1400 further includes: a computer program stored in the memory 1402 and operable on the processor 1401 .

It should be understood that, in the embodiment of the present application, the processor 1401 and the transceiver 1404 can implement each process implemented by the core network device in the method embodiment above, and achieve the same technical effect. To avoid repetition, details are not repeated here.

The embodiment of the present application also provides a readable storage medium, the readable storage medium may be volatile or non-volatile, and a program or instruction is stored on the readable storage medium, the program or When the instructions are executed by the processor, the various processes of the above-mentioned first communication device side communication method embodiment, or the various processes of the core network device side communication method embodiment can be achieved, and the same technical effect can be achieved. To avoid repetition, it is not repeated here repeat.

Wherein, the processor is the processor in the first communication device described in the foregoing embodiments, or the processor in the core network device described in the foregoing embodiments. The readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.

The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to realize the above-mentioned first communication device side communication The various processes of the method embodiment, or the various processes of the implementation of the core network device side communication method embodiment, and can achieve the same technical effect, are not repeated here to avoid repetition.

It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.

The embodiment of the present application further provides a computer program or program product, the computer program or program product is stored in a non-transitory readable storage medium, and the program or program product is executed by at least one processor to realize the above-mentioned The various processes of the embodiment of the communication method on the first communication device side, or the various processes of the embodiment of the communication method on the device side of the core network, can achieve the same technical effect. In order to avoid repetition, details are not repeated here.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps S may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on this understanding, the essence of the technical solution of this application or the part that contributes to related technologies can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network side device, etc.) execute the methods described in the various embodiments of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims

A method of communication comprising:

The first communication device receives the first information; the first information includes first indication information, and the first indication information is used to indicate at least one of the following items: a first communication channel is established, and one end of the first communication channel is The wireless access network device; the first communication channel is used to report the subscribed event; the data radio bearer DRB between the wireless access network device and the terminal device is not established;

The first communication device performs a first operation according to the first information; the first operation includes at least one of the following: establishing the first communication channel; not establishing a DRB between the radio access network device and the terminal device ; If the first communication channel exists, use the first communication channel to send the second information; wherein, the second information is related content of the subscribed event.
The method according to claim 1, wherein the first information further includes at least one of the following:

Channel information of the first communication channel;

Quality of service configuration QoS profile.
The method according to claim 1, further comprising:

The first communication device sends third information; the third information is used to indicate that the establishment of the first communication channel is completed.
The method according to claim 1, wherein, before the step of receiving the first information by the first communication device, the method further comprises:

The first communication device sends fourth information, where the fourth information is used to request establishment of the first communication channel.
The method according to claim 4, wherein the fourth information includes second indication information, and the second indication information is used to indicate at least one of the following: establishing a first communication channel, and the first communication channel One end is a wireless access network device; the first communication channel is used to report subscribed events; no DRB is established between the wireless access network device and the terminal device.
The method according to claim 1, further comprising:

The first communication device receives fifth information, where the fifth information is used to request associating the first communication channel with the first core network device.
The method according to claim 6, wherein the fifth information includes at least one of the following:

Address information corresponding to the first core network device;

session ID;

Channel information of the first communication channel;

An identifier of the first communication channel.
The method according to claim 1, further comprising:

The first communication device sends sixth information, where the sixth information is used to request activation of the first communication channel.
The method according to claim 8, wherein the sixth information includes at least one of the following:

session ID;

Channel information of the first communication channel;

An identifier of the first communication channel.
The method according to claim 1, wherein the second information includes at least one of the following:

Information about the actual transmission of HDRLL services by radio access network equipment;

Wireless access network equipment transmission conditions;

Wireless access network device configuration information;

Information related to HDRLL services recommended by radio access network equipment;

QoS adjustment request for HDRLL service.
A method of communication comprising:

The first core network device sends seventh information, the seventh information is used to request the establishment of a first communication channel, and the first communication channel is used to report subscribed events, or one end of the first communication channel is a wireless access network equipment.
The method according to claim 11, wherein the seventh information includes at least one of the following: address information corresponding to the first core network device; third indication information;

Wherein, the third indication information is used to indicate at least one of the following items: a first communication channel is established, and one end of the first communication channel is a wireless access network device; the first communication channel is used to report subscribed events.
The method of claim 11, further comprising:

The first core network device sends eighth information requesting to subscribe to an event, and the eighth information includes at least one of the following: subscription event information; address information corresponding to the first core network device; a session identifier; the first Channel information of the communication channel; an identifier of the first communication channel.
The method of claim 11, further comprising:

The first core network device receives ninth information, where the ninth information includes at least one of the following: channel information of the first communication channel; an identifier of the first communication channel; a session identifier, and a terminal device identifier.
A method of communication comprising:

The second core network device receives tenth information; the tenth information includes first policy information;

The second core network device sends first information according to the tenth information; the first information includes first indication information, and the first indication information is used to indicate at least one of the following: establishing a first communication channel, In addition, one end of the first communication channel is a radio access network device; the first communication channel is used to report subscribed events; a data radio bearer DRB between the terminal device and the radio access network device is not established.
The method according to claim 15, wherein the first information further includes at least one of the following:

Channel information of the first communication channel;

Quality of service configuration QoS profile.
The method according to claim 15, wherein the tenth information further includes fourth indication information, or the first policy information includes fourth indication information;

Wherein, the fourth indication information is used to indicate at least one of the following: establish a first communication channel, and one end of the first communication channel is a wireless access network device; the first communication channel is used to report subscribed events; A DRB between the radio access network device and the terminal device is established.
The method according to claim 15, wherein the second core network device does not generate a QoS rule when receiving the tenth information.
The method of claim 15, further comprising:

The second core network device sends fifth information, where the fifth information is used to request associating the first communication channel with the first core network device.
The method according to claim 19, wherein the fifth information includes at least one of the following:

Address information corresponding to the first core network device;

session ID;

Channel information of the first communication channel;

An identifier of the first communication channel.
The method of claim 15, further comprising:

The second core network device receives sixth information, where the sixth information is used to request activation of the first communication channel.
The method according to claim 21, wherein the sixth information includes at least one of the following:

session ID;

Channel information of the first communication channel;

An identifier of the first communication channel.
The method of claim 15, further comprising:

The second core network device sends ninth information, where the ninth information includes at least one of the following: channel information of the first communication channel; an identifier of the first communication channel; a session identifier, and a terminal device identifier.
A method of communication comprising:

The third core network device sends tenth information; the tenth information includes first policy information and fourth indication information, or the tenth information includes first policy information, and the first policy information includes a fourth indication information;

Wherein, the fourth indication information is used to indicate at least one of the following: establish a first communication channel, and one end of the first communication channel is a wireless access network device; the first communication channel is used to report subscribed events; A data radio bearer DRB between the radio access network device and the terminal device is established.
The method of claim 24, further comprising:

The third core network device receives seventh information or eleventh information, where the seventh information or eleventh information is used to request establishment of the first communication channel, and the eleventh information is sent according to the first communication device The fourth information is obtained.
The method according to claim 25, wherein the seventh information includes at least one of the following: address information corresponding to the first core network device; third indication information;

Wherein, the third indication information is used to indicate at least one of the following items: a first communication channel is established, and one end of the first communication channel is a radio access network device; the first communication channel is used to report subscribed events.
The method according to claim 25, wherein the eleventh information includes fifth indication information, and the fifth indication information is used to indicate at least one of the following: establishing a first communication channel, and the first communication channel One end of the radio access network device; the first communication channel is used to report subscribed events.
The method of claim 24, further comprising:

The third core network device receives eighth information requesting to subscribe to an event, and the eighth information includes at least one of the following: subscription event information; address information corresponding to the first core network device; session identifier; the first communication channel channel information; the identifier of the first communication channel.
A communication device comprising:

A receiving module, configured to receive first information; the first information includes first indication information, and the first indication information is used to indicate at least one of the following items: a first communication channel is established, and one end of the first communication channel It is a wireless access network device; the first communication channel is used to report subscribed events; a data radio bearer DRB between the wireless access network device and the terminal device is not established;

An executing module, configured to execute a first operation according to the first information; the first operation includes at least one of the following: establishing the first communication channel; not establishing a DRB between the wireless access network device and the terminal device; When the first communication channel exists, the first communication channel is used to send the second information; wherein the second information is related content of the subscribed event.
A communication device comprising:

The fourth sending module is used to send seventh information, the seventh information is used to request the establishment of a first communication channel, and the first communication channel is used to report subscribed events, or one end of the first communication channel is a wireless access network equipment.
A communication device comprising:

A third receiving module, configured to receive tenth information; the tenth information includes first policy information;

The fifth sending module is configured to send first information according to the tenth information; the first information includes first indication information, and the first indication information is used to indicate at least one of the following: establishing a first communication channel, In addition, one end of the first communication channel is a radio access network device; the first communication channel is used to report subscribed events; a data radio bearer DRB between the terminal device and the radio access network device is not established.
A communication device comprising:

An eighth sending module, configured to send tenth information; the tenth information includes first policy information and fourth indication information, or the tenth information includes first policy information, and the first policy information includes the first policy information 4. instruction information;

Wherein, the fourth indication information is used to indicate at least one of the following: establish a first communication channel, and one end of the first communication channel is a wireless access network device; the first communication channel is used to report subscribed events; A data radio bearer DRB between the radio access network device and the terminal device is established.
A communication device, comprising a processor, a memory, and a program or instruction stored on the memory and operable on the processor, when the program or instruction is executed by the processor, claims 1 to 10 are implemented The steps of any one of the communication methods.
A core network device, comprising a processor, a memory, and a program or instruction stored on the memory and operable on the processor, when the program or instruction is executed by the processor, the following claims 11 to 10 are implemented. 14, or realize the steps of the communication method according to any one of claims 15 to 23, or realize the communication method according to any one of claims 24 to 28 A step of.
A readable storage medium, storing programs or instructions on the readable storage medium, and implementing the communication method according to any one of claims 1 to 10 when the program or instructions are executed by a processor, or implementing the communication method according to any one of claims 1 to 10 The steps of the communication method described in any one of claims 11 to 14, or the steps of the communication method described in any one of claims 15 to 23, or the implementation of the steps described in any one of claims 24 to 28 The steps of the communication method.
A chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor is used to run programs or instructions, and realize the communication according to any one of claims 1 to 10 method, or realize the steps of the communication method according to any one of claims 11 to 14, or realize the steps of the communication method according to any one of claims 15 to 23, or realize the steps of the communication method according to any one of claims 24 to 28 The steps of any one of the communication methods.
A computer program product, the computer program product is stored in a non-volatile storage medium, and the computer program product is executed by at least one processor to implement the communication method according to any one of claims 1 to 10 , or realize the steps of the communication method described in any one of claims 11 to 14, or realize the steps of the communication method described in any one of claims 15 to 23, or realize the steps of the communication method described in any one of claims 24 to 28 The steps of any one of the communication methods.
A communication device configured to execute the communication method according to any one of claims 1 to 10, or to execute the steps of the communication method according to any one of claims 11 to 14, or to execute the communication method according to any one of claims 1 to 14 The steps of the communication method described in any one of claims 15 to 23, or performing the steps of the communication method described in any one of claims 24 to 28.