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

Abstract

The application discloses a communication method, device, core network equipment and communication equipment, and belongs to the technical field of communication. The communication method comprises the following steps: a first communication device receives first information; the first information comprises first indication information, and the first indication information is used for indicating at least one of the following: 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 for reporting a subscribed event; a DRB between the radio access network device and a terminal device is not established; the first communication device performs a first operation according to the first information; the first operation comprises at least one of the following: the first communication channel is established; the DRB between the radio access network device and the terminal device is not established; and the first communication channel is used for transmitting second information in the case that the first communication channel exists.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of communication, and particularly relates to a communication method and device, a core network device and a communication device. BACKGROUND

[0002] With the development of communication technology, a service source end, such as an application server or an application function (AF), etc., can need to adaptively adjust the mode of sending service data packets according to relevant information (such as service reception, transmission conditions, etc.) fed back by a Radio Access Network (RAN) side, so as to improve the service quality. However, in the prior art, there is no relevant solution for how the Radio Access Network device feeds back information to the application server or the AF, etc. SUMMARY

[0003] The embodiments of the present application provide a communication method and device, a core network device and a communication device, which can provide a way for the Radio Access Network device to feed back information to the application server or the AF, etc., so as to improve the service quality of the application server or the AF, etc.

[0004] In a first aspect, a communication method is provided, which includes:

[0005] A 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 one end of the first communication channel is a Radio Access Network device; the first communication channel is used to report a subscribed event; and a Data Radio Bearer (DRB) between the Radio Access Network device and a terminal device is not established.

[0006] The first communication device performs a first operation according to the first information; the first operation includes at least one of the following: the first communication channel is established; the DRB between the Radio Access Network device and the terminal device is not established; and the second information is sent using the first communication channel in the case where the first communication channel exists; and the second information is related content of the subscribed event.

[0007] In a second aspect, a communication method is provided, which includes:

[0008] A first core network device sends seventh information, and the seventh information is used to request to establish a first communication channel; the first communication channel is used to report a subscribed event, or one end of the first communication channel is a Radio Access Network device.

[0009] In a third aspect, a communication method is provided, and the method comprises:

[0010] The second core network device receives tenth information; the tenth information comprises first policy information;

[0011] The second core network device sends first information according to the tenth information; the first information comprises first indication information, and the first indication information is used to indicate at least one of the following: establishing 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 a subscribed event; and not establishing a DRB between the terminal device and the radio access network device.

[0012] In a fourth aspect, a communication method is provided, and the method comprises:

[0013] The third core network device sends tenth information; the tenth information comprises first policy information and fourth indication information, or the tenth information comprises first policy information, and the first policy information comprises fourth indication information;

[0014] The fourth indication information is used to indicate at least one of the following: establishing 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 a subscribed event; and not establishing a DRB between the radio access network device and the terminal device.

[0015] In a fifth aspect, a communication apparatus is provided, and the apparatus comprises:

[0016] The receiving module is configured to receive first information; the first information comprises first indication information, and the first indication information is used to indicate at least one of the following: establishing 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 a subscribed event; and not establishing a DRB between the radio access network device and the terminal device.

[0017] The execution module is configured to execute a first operation according to the first information; the first operation comprises 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; and sending second information using the first communication channel in a case where the first communication channel exists; and the second information is related content of a subscribed event.

[0018] In a sixth aspect, a communication apparatus is provided, and the apparatus comprises:

[0019] The fourth sending module is configured to send seventh information; the seventh information is used to request to establish a first communication channel, the first communication channel is used to report a subscribed event, or one end of the first communication channel is a radio access network device.

[0020] In a seventh aspect, a communication apparatus is provided, comprising:

[0021] a third receiving module, configured to receive tenth information; the tenth information comprises first policy information;

[0022] a fifth sending module, configured to send first information according to the tenth information; the first information comprises first indication information, and the first indication information is used to indicate at least one of the following: establishing 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 a subscribed event; and not establishing a data radio bearer (DRB) between the terminal device and the radio access network device.

[0023] In an eighth aspect, a communication apparatus is provided, comprising:

[0024] an eighth sending module, configured to send tenth information; the tenth information comprises first policy information and fourth indication information, or the tenth information comprises the first policy information, and the first policy information comprises the fourth indication information;

[0025] wherein the fourth indication information is used to indicate at least one of the following: establishing 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 a subscribed event; and not establishing a DRB between the radio access network device and the terminal device.

[0026] In a ninth aspect, a communication device is provided, comprising a processor, a memory, and a program or instructions stored in the memory and executable on the processor, and the program or instructions are executed by the processor to implement the steps of the method in the first aspect.

[0027] In a tenth aspect, a communication device is provided, comprising a processor and a communication interface, wherein the communication interface is configured to receive first information; the first information comprises first indication information, and the first indication information is used to indicate at least one of the following: establishing 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 a subscribed event; and not establishing a DRB between the radio access network device and the terminal device; and the processor is configured to perform a first operation according to the first information; the first operation comprises 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; and sending second information using the first communication channel in the presence of the first communication channel; and the second information is related content of the subscribed event.

[0028] In an eleventh aspect, a core network device is provided, which includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, and the program or instructions, when executed by the processor, implement the steps of the method according to the second aspect, or implement the steps of the method according to the third aspect, or implement the steps of the method according to the fourth aspect.

[0029] In a twelfth aspect, a core network device is provided, which includes a processor and a communication interface, and the communication interface is configured to send seventh information, the seventh information being used to request to establish a first communication channel, and the first communication channel is used to report a subscribed event, or one end of the first communication channel is a radio access network device.

[0030] Or

[0031] The communication interface is configured to receive tenth information, the tenth information includes first policy information, and according to the tenth information, first information is sent, the first information includes first indication information, and the first indication information is used to indicate at least one of the following: the 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 a subscribed event; and a DRB between a terminal device and a radio access network device is not established.

[0032] Or

[0033] The communication interface is 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 indication information; and the fourth indication information is used to indicate at least one of the following: the 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 a subscribed event; and a DRB between a radio access network device and a terminal device is not established.

[0034] In a thirteenth aspect, a readable storage medium is provided, which stores a program or instructions, and the program or instructions, when executed by a processor, implement the steps of the method according to the first aspect, or implement the steps of the method according to the second aspect, or implement the steps of the method according to the third aspect, or implement the steps of the method according to the fourth aspect.

[0035] In a fourteenth aspect, a chip is provided, which includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or instructions, and implement the steps of the method according to the first aspect, or implement the steps of the method according to the second aspect, or implement the steps of the method according to the third aspect, or implement the steps of the method according to the fourth aspect.

[0036] A fifteenth aspect provides a computer program or program product stored in a non-transitory readable storage medium, the program or program product being executed by at least one processor to implement the steps of the method according to the first aspect, or to implement the steps of the method according to the second aspect, or to implement the steps of the method according to the third aspect, or to implement the steps of the method according to the fourth aspect.

[0037] In the embodiments of the present application, the first communication device can perform at least one of the following operations according to the first information: establishing the first communication channel, not establishing the DRB between the radio access network device and the terminal device, and sending the related content of the subscribed event using the first communication channel, so that the radio access network device can feed back information based on at least one of the following: the channel for the radio access network device and the manner of subscribing to the event. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0039] Figure 2 is a flowchart of a communication method provided by the embodiments of the present application;

[0040] Figure 3 is a flowchart of another communication method provided by the embodiments of the present application;

[0041] Figure 4 is a flowchart of another communication method provided by the embodiments of the present application;

[0042] Figure 5 is a flowchart of another communication method provided by the embodiments of the present application;

[0043] Figure 6 is a flowchart of another communication method provided by the embodiments of the present application;

[0044] Figure 7 is a flowchart of another communication method provided by the embodiments of the present application;

[0045] Figure 8 is a structural diagram of a communication device provided by the embodiments of the present application;

[0046] Figure 9 is a structural diagram of another communication device provided by the embodiments of the present application;

[0047] Figure 10 is a structural diagram of another communication device provided by the embodiments of the present application;

[0048] Figure 11 is a structural diagram of another communication device provided by the embodiments of the present application;

[0049] Figure 12 is a structural diagram of a communication device provided by an embodiment of the present application;

[0050] Figure 13 is a structural diagram of a radio access network device provided by an embodiment of the present application;

[0051] Figure 14 is a structural diagram of a core network device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0053] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" are generally of a kind, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally represents a "or" relationship between the front and rear associated objects.

[0054] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as 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 (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 in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied outside the NR system application, such as in a 6th Generation (6G) communication system. th

[0055] Figure 1 ​A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal device 11, a radio access network device 12, and a core network device 13. The terminal device 11 can also be referred to as a terminal device or a user terminal (User Equipment, UE). The terminal device 11 can be a terminal device on the terminal side such as a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a palmtop, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), a wearable device, or a vehicle-mounted device (VUE), a pedestrian terminal (PUE), etc. The wearable device includes a smart watch, a bracelet, earphones, glasses, etc. It should be noted that the specific type of the terminal device 11 is not limited in the embodiments of the present application. The radio access network device 12 can include a base station, which can 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 (BSS), an extended service set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a transmitting receiving point (TRP), or some other appropriate terminology in the art, as long as the same technical effects are achieved. The base station is not limited to a specific technical term as long as the same technical effects are achieved. It should be noted that only a base station in an NR system is taken as an example in the embodiments of the present application, but the specific type of the base station is not limited. The core network device 13 can include, but is not limited to, one or more of an application function (AF), a policy control function (PCF), a core network access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), and a network exposure function (NEF).

[0056] For ease of understanding, the relevant content involved in the embodiments of this application is described below:

[0057] I. Regarding Protocol Data Unit (PDU) sessions and Quality of Service (QoS) flow

[0058] In 5G networks, a PDU session refers to a communication bearer between a User Equipment (UE) and a Data Network (DN). Once a PDU session is established, a data transmission channel between the UE and the DN is created. Each PDU session may contain several QoS flows. The UE identifies data packets from the application layer according to the QoS rules configured on the network side and then maps the packets to different QoS flows for transmission. In other words, the UE needs to establish a PDU session by executing control plane procedures before it can communicate with the application server.

[0059] II. In 5G networks, application functions (AFs) are allowed to obtain information by subscribing to relevant events.

[0060] 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 Network Functions (NFs) in the 5th Generation System (5GS) to configure specific events, detect events, and report events to requested parties.

[0061] III. High Data Rate Low Latency (HDRLL) Services

[0062] HDRLL is a general term for a class of services, namely high data rate and low latency services, such as cloud gaming, cloud augmented reality (AR), cloud virtual reality (VR), and extended reality (XR).

[0063] For example, XR refers to a combination of real and virtual environments and human-computer interaction devices, and is a computer technology and wearable device for computing. The X in XR represents a variable, which can be a current or future spatial computing technology, and includes AR, mixed reality (MR), and VR, as well as in these areas. 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 a combination of VR and AR, combining virtual reality and augmented reality to provide a new visualization environment. The significance of XR is the extension of human experience, especially in terms of presence (presented by virtual reality) and cognitive acquisition (presented by augmented reality). XR services have high data rate, high reliability requirements, low latency requirements, non-integer period, packet arrival time jitter, multiple service streams, and varying packet sizes, which pose high requirements on mobile communication systems.

[0064] The communication method provided by the embodiments of the present application will be described in detail below in combination with the drawings, some embodiments and application scenarios.

[0065] Please refer to Figure 2 , Figure 2 is a flowchart of a communication method provided by the embodiments of the present application. The method can be executed by a first communication device, as shown in Figure 2 , including the following steps:

[0066] 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: establishing 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 a subscribed event; and not establishing a DRB between the wireless access network device and a terminal device.

[0067] In the embodiment, the first communication device can include a RAN or a user equipment (User Equipment, UE), and the user equipment can also be referred to as a terminal device.

[0068] The subscribed event can include, but is not limited to, an HDRLL service related event, such as a cloud game related event, an AR related event, a VR related event, or an XR related event. Optionally, the first communication channel used to report the subscribed event can be used for the wireless access network device to report the subscribed event.

[0069] Optionally, the first communication channel can be a channel between the radio access network device and a core network device, for example, the first communication channel can be a channel between the radio access network device and an AF, or can be a channel between the radio access network device and a user plane function (UPF), etc. Optionally, the first communication channel can be a data channel.

[0070] The radio access network device and the terminal device do not establish a DRB, that is, one end of the established channel is the radio access network device (that is, the first communication channel), for example, a channel between the radio access network device and an AF, or can be a channel between the radio access network device and a UPF, etc.

[0071] It should be noted that in some scenarios, the radio access network device and the terminal device do not establish a DRB can also be understood as not establishing a QoS flow at the UE side, or the session management function (SMF) does not generate a quality of service rule (QoS rule) for the UE. Taking not establishing a QoS flow at the UE side as an example, in the prior art, the QoS flow is often carried in a PDU session, and the two ends of the QoS flow are the UE and the UPF. By not establishing a QoS flow at the UE side, a channel between the RAN and the UPF is established.

[0072] In an embodiment, the first indication information can be used to indicate establishment of a first communication channel, and one end of the first communication channel is a radio access network device, or to indicate that a DRB is not established between the radio access network device and the terminal device. In this embodiment, optionally, the first communication channel can be a channel between the radio access network device and an AF, or can be a channel between the radio access network device and a UPF.

[0073] In another embodiment, the first indication information can be used to indicate that the first communication channel is used to report a subscribed event. In this embodiment, optionally, the first communication channel can be a channel between the radio access network device and an AF, or can be a channel between the radio access network device and a UPF, or can be a channel between the UE and the AF, or can be a channel between the UE and the UPF. In addition, the first communication channel can be a newly established channel, or can be an existing channel.

[0074] In another implementation, the first indication information can be used to indicate that the first communication channel is established and one end of the first communication channel is the wireless access network device or that the DRB between the wireless access network device and the terminal device is not established, and to indicate that the first communication channel is used to report the subscribed event. In this implementation, optionally, the first communication channel can be a channel between the wireless access network device and the AF, or can be a channel between the wireless access network device and the UPF, and the first communication channel is used to report the subscribed event.

[0075] It should be noted that for the above step 201, the first communication device can receive the first information sent by the second core network device (for example, SMF). For example, the SMF can send the first information to the RAN through a Namf_Communication_N1N2MessageTransfer message.

[0076] 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 the DRB between the wireless access network device and the terminal device; using the first communication channel to send second information in the case where the first communication channel exists; wherein the second information is the related content of the subscribed event.

[0077] The following illustrates this embodiment by way of example:

[0078] Implementation one: in the case where the first indication information indicates that the first communication channel is established and one end of the first communication channel is the wireless access network device, or indicates that the DRB between the wireless access network device and the terminal device is not established, the first communication device can establish the first communication channel with one end being the wireless access network device, or not establish the DRB between the wireless access network device and the terminal device. In this way, the wireless access network device can quickly feed back information based on the established first communication channel with one end being the wireless access network device, and reduce the time delay of the wireless access network device feeding back information.

[0079] Embodiment II: In the case that the first indication information indicates to establish the first communication channel, and one end of the first communication channel is the radio access network device, or indicates not to establish the DRB between the radio access network device and the terminal device, the first communication device can establish the first communication channel with one end being the radio access network device, or not establish the DRB between the radio access network device and the terminal device, and can send the related content (i.e., the second information) of the subscribed event using the established first communication channel with one end being the radio access network device. This embodiment can improve the convenience of the radio access network device information feedback and reduce the time delay of the radio access network device information feedback by comprehensively using the first communication channel with one end being the radio access network device and the event subscription to feed back the information.

[0080] Embodiment III: In the case that the first indication information indicates that the first communication channel is used to report the subscribed event, the first communication device can establish the first communication channel for reporting the subscribed event, and send the related content of the subscribed event using the established first communication channel. In this embodiment, one end of the first communication channel can be the radio access network device, or can be the terminal device, for example, the first communication channel can be the channel between the radio access network device and the UPF, or can be the channel between the UE and the UPF. The first communication channel for reporting the subscribed event can be a new channel for reporting the subscribed event, or can be an existing channel configured for reporting the subscribed event. This embodiment can improve the convenience of the radio access network device information feedback by using the event subscription to feed back the information.

[0081] Embodiment IV: In the case that the first indication information indicates that the first communication channel is used to report the subscribed event, the first communication device can send the related content of the subscribed event using the first communication channel. In this embodiment, the first communication channel can be an existing channel, and one end of the first communication channel can be the radio access network device, or can be the terminal device, for example, the first communication channel can be the channel between the radio access network device and the UPF, or can be the channel between the UE and the UPF. This embodiment can improve the convenience of the radio access network device information feedback by using the existing channel to feed back the related content of the subscribed event.

[0082] In the case that the first indication information can be used to indicate that the first communication channel is established and one end of the first communication channel is the wireless access network device or that no DRB between the wireless access network device and the terminal device is established, and that the first communication channel is used to report the subscribed event, the first communication device can establish the first communication channel with one end being the wireless access network device and used to report the subscribed event. In this way, the first communication device can send the related content of the subscribed event using the established first communication channel with one end being the wireless access network device, thereby improving the convenience of the wireless access network device information feedback and reducing the time delay of the wireless access network device feedback information.

[0083] It should be noted that in the case that the first communication device is the UE, the UE sending the related content of the subscribed event using the first communication channel can include the UE forwarding the related content of the subscribed event of the RAN using the first communication channel.

[0084] The communication method provided by the embodiments of the present application can be used to enable the wireless access network device to feed back information based on at least one of the channel with one end being the wireless access network device and the manner of the subscribed event, so that the first communication device can perform at least one of the following operations according to the first information: establishing the first communication channel, not establishing the DRB between the wireless access network device and the terminal device, and sending the related content of the subscribed event using the first communication channel in the case that the first communication channel exists.

[0085] Optionally, the first information can further include at least one of the following:

[0086] Channel information of the first communication channel;

[0087] Quality of Service profile (QoS profile).

[0088] In the embodiment, the tunnel info and the QoS profile of the first communication channel can be determined by the SMF according to information provided by a policy control function (PCF), wherein the information (i.e., the tenth information) provided by the PCF can include first policy information, such as a policy and charging control (PCC) rule. Alternatively, the information provided by the PCF can further include fourth indication information, or the first policy information can further include the fourth indication information, wherein the fourth indication information is used to indicate one of the following: the first communication channel is established, and one end of the first communication channel is the radio access network device; the first communication channel is used to report the subscribed event; and the DRB between the radio access network device and the terminal device is not established.

[0089] In the embodiment, the tunnel info and the QoS profile are carried in the first information, so that the first communication channel is established according to the tunnel info and the QoS profile, and the established first communication channel is more suitable for the transmission requirement.

[0090] Alternatively, the method can further include:

[0091] The first communication device sends third information, wherein the third information is used to indicate that the first communication channel is established.

[0092] In the embodiment, the first communication device can send the third information to the second core device, for example, the RAN can send the third information to the SMF through an N2 message (i.e., an N2 Message) to notify the SMF that the first communication channel is established. Alternatively, in the case where the first communication device is the RAN, the RAN can also send the third information to the UE to notify the UE that the first communication channel is established.

[0093] In an implementation, in the case where the first operation is to establish the first communication channel or not to establish the DRB between the radio access network device and the terminal device, the first communication device can send the third information after performing the first operation according to the first information. For example, the RAN sends the third information to the SMF after establishing the first communication channel to notify the SMF that the first communication channel is established, and / or the RAN sends the third information to the UE after establishing the first communication channel to notify the UE that the first communication channel is established.

[0094] In another implementation, in a case where the first operation is to send second information using the first communication channel, the first communication device can send third information before performing the first operation according to the first information, for example, the RAN sends third information to the SMF before sending the second information based on the first communication channel to inform the SMF that the first communication channel has been established, and / or the RAN can send third information to the UE before sending the second information based on the first communication channel to inform the UE that the first communication channel has been established.

[0095] In this embodiment, the first communication device sends third information to indicate that the first communication channel has been established, so that the use of resources related to the first communication channel by other devices can be avoided.

[0096] Optionally, before the step of receiving the first information by the first communication device, the method can further include:

[0097] The first communication device sends fourth information, and the fourth information is used to request to establish the first communication channel.

[0098] Optionally, the first communication device can send fourth information to the second core network device (for example, the SMF) to request to establish the first communication channel. For example, the RAN can send fourth information to the SMF through an N2 message.

[0099] In actual application, the first communication device can trigger the establishment of the first communication channel in a case where the HDRLL service (for example, the XR service) needs to be used, and then can report the related content of the HDRLL service related event based on the established first communication channel, so that the first communication channel can meet the demand of event reporting without occupying resources for too long a time.

[0100] Optionally, the fourth information includes second indication information, and the second indication information is used to indicate at least one of the following: the 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 a subscribed event; and no DRB between the radio access network device and the terminal device is established.

[0101] In this embodiment, the second indication information is carried in the channel establishment request (that is, the fourth information), and then the first communication channel can be established based on the second indication information, so that the established first communication channel is more in line with the data transmission demand of the first communication device.

[0102] Optionally, the method can further include:

[0103] The first communication device receives fifth information, and the fifth information is used to request to associate the first communication channel with the first core network device.

[0104] In this embodiment, the first communication device can receive the fifth information from the second core network device (e.g., SMF) to associate the first communication channel with the first core network device, where the first core network device can be a core network device that needs to be associated, 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 can receive the fifth information from the SMF through the N2 message to associate the first communication channel with the first AF, where the first AF can be the AF indicated in the fifth information, or the AF that needs to use the HDRLL service among multiple AFs.

[0105] In an implementation, in a case where the first operation is to establish the first communication channel or not to establish the DRB between the radio access network device and the terminal device, the first communication device can receive the fifth information after performing the first operation according to the first information. For example, the RAN sends the third information to the SMF to inform the SMF that the first communication channel has been established after establishing the first communication channel, so that the SMF can send the fifth information to the RAN to request to associate the first communication channel with the first core network device.

[0106] In another implementation, in a case where the first operation is to send the second information using the first communication channel, the first communication device can receive the fifth information before performing the first operation according to the first information. For example, the RAN first receives the fifth information from the SMF and associates the first communication channel with the first core network device, and then sends the second information to the first core network device using the first communication channel.

[0107] 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 in a case where the SF needs to use the HDRLL service, so that the first communication device can report the related content of the HDRLL service related event to the AF based on the first communication channel, so that the first communication channel can be used to report events to different AFs, and the use rate and flexibility of the first communication channel are improved.

[0108] Optionally, the fifth information can include at least one of the following:

[0109] address information corresponding to the first core network device;

[0110] session identifier;

[0111] channel information of the first communication channel;

[0112] identifier of the first communication channel.

[0113] In the embodiment, the address information corresponding to the first core network device can include at least one of the following: an Internet Protocol version 4 (IPv4) address, an Internet Protocol version 6 (IPv6) address, a Fully Qualified Domain Name (FQDN), a Uniform Resource Locator (URL), an Ethernet address, and an Internet Protocol (IP) address. The session identifier can be a PDU session ID. The identifier of the first communication channel can be a QoS Flow ID (QFI).

[0114] For example, the RAN can associate the AF (i.e., the first core network device) corresponding to the address information carried in the fifth information and the communication channel (the first communication channel) corresponding to the channel identifier after receiving the fifth information.

[0115] The embodiment facilitates the first communication device to more accurately and quickly associate the first communication channel with the first core network device 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.

[0116] Optionally, the method can further include:

[0117] The first communication device sends sixth information, where the sixth information is used to request to activate the first communication channel.

[0118] In the embodiment, the first communication device can send the sixth information to the SMF, for example, the RAN can send a Tunnel Activation request message to the SMF to request to activate the first communication channel.

[0119] In an embodiment, in the case where the first operation is to establish the first communication channel or not to establish a DRB between the radio access network device and the terminal device, the first communication device can send the sixth information after performing the first operation according to the first information. For example, the RAN can send the sixth information to the SMF to request to activate the first communication channel after establishing the first communication channel in the case where information needs to be reported.

[0120] In another implementation, in a case where the first operation is to send the second information using the first communication channel, the first communication device can send the sixth information before performing the first operation according to the first information. For example, the RAN first sends the sixth information to the SMF to request to activate the first communication channel, and then sends the second information using the activated first communication channel.

[0121] In actual application, the first communication channel can be in an inactivated state, and the first communication channel is activated when the first communication device needs to report information, so that power consumption can be saved.

[0122] Optionally, the sixth information can include at least one of the following:

[0123] a session identifier;

[0124] channel information of the first communication channel;

[0125] an identifier of the first communication channel.

[0126] 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, so that the channel that needs to be activated can be determined more accurately and quickly.

[0127] Optionally, the second information includes at least one of the following:

[0128] information about actual transmission of the HDR LL service by the radio access network device;

[0129] a transmission condition of the radio access network device;

[0130] configuration information of the radio access network device;

[0131] information recommended by the radio access network device and related to the HDR LL service;

[0132] a QoS adjustment request for the HDR LL service.

[0133] In this embodiment, the actual transmission of the HDR LL service by the radio access network device can include, but is not limited to, at least one of the following: a transmission error rate of one or more transmission units; a transmission success rate of one or more transmission units; a ratio of transmission error rates of different transmission units; a ratio of transmission success rates of different transmission units; a transmission delay of one or more transmission units; a ratio of transmission delays of different transmission units; a quality indicator of the HDR LL service; a rebuffering time or duration.

[0134] The transmission unit can include, but is not limited to, at least one of the following: a data packet; a data frame; a data stream; an application data unit. The data packet can include at least one of an IP data packet, a left-eye data packet provided to a user, and a right-eye data packet provided to the user.

[0135] The radio access network device transmission condition can include, but is not limited to, at least one of the following: a channel quality indicator; a traffic burst volume; a channel deep fading indicator; a user scheduling congestion indicator.

[0136] The radio access network device configuration information can include, but is not limited to, at least one of the following: connected discontinuous reception (CDRX) configuration information; CDRX configuration update information; wake-up signal (WUS) configuration information; physical downlink control channel (PDCCH) monitoring occasion information; PDCCH adaptive monitoring information.

[0137] The radio access network device recommended information related to the HDRLL service can include, but is not limited to, at least one of the following: a value of a service characteristic of the HDRLL service recommended by the radio access network device; an adjustment value of the service characteristic of the HDRLL service recommended by the radio access network device; an adjustment method of the service characteristic of the HDRLL service recommended by the radio access network device; a ratio between different service characteristics of the HDRLL service recommended by the radio access network device.

[0138] The service characteristic can include, but is not limited to, at least one of the following: a data volume of one or more transmission units; a ratio of different transmission unit quantities; a service packet size of one or more transmission units; related information of one or more transmission unit generation times; a quantization parameter; a generation method of the HDRLL service; a transmission method of the HDRLL service; an encoding method of adjusting the HDRLL service. The generation method of the HDRLL service can be a compression encoding method. The transmission method can be simultaneous transmission of left-eye and right-eye data or alternating transmission of left-eye and right-eye data.

[0139] The QoS adjustment request can include, but is not limited to, at least one of the following: a QFI value; a 5QI value; a priority.

[0140] Please refer to Figure 3 , Figure 3 is a flowchart of another communication method provided by the embodiments of the present application. The method can be performed by a first core network device, as shown in Figure 3 , including the following steps:

[0141] Step 301, the first core network device sends seventh information, the seventh information is used for requesting to establish a first communication channel, the first communication channel is used for reporting a subscribed event, or one end of the first communication channel is a radio access network device.

[0142] In the embodiment, the first core network device can be an AF. The subscribed event can include, but is not limited to, an HDRLL service related event, for example, a cloud game related event, an AR related event, a VR related event, or an XR related event, etc. Optionally, the first communication channel for reporting the subscribed event can mean that the first communication channel is used for the radio access network device to report the subscribed event.

[0143] For the first communication channel with one end being the radio access network device, the first communication channel can be a channel between the radio access network device and the core network device, for example, the first communication channel can be a channel between the radio access network device and the AF, or a channel between the radio access network device and the UPF, etc.

[0144] For the step 301, the first core network device can send the seventh information to the PCF to request to establish the first communication channel. For example, the AF can send the seventh information to the PCF through an AF session QoS creation request (Nnef_AFsessionWithQoS_Create request) message in the case of needing the RAN to report the HDRLL service (for example, XR service) related event, so that the PCF can generate the first policy information based on the seventh 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 feed back information to the AF through the first communication channel.

[0145] The embodiment can request to establish the first communication channel in the case of needing the first communication device to feed back information, so that the first communication channel can meet the demand of the first core network device to obtain the feedback information without occupying resources for a long time.

[0146] Optionally, the seventh information includes at least one of the following: address information corresponding to the first core network device; third indication information;

[0147] The third indication information is used for indicating at least one of the following: the 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 for reporting a subscribed event.

[0148] In the embodiment, the address information corresponding to the first core network device can include at least one of the following: an IPv4 address, an IPv6 address, an FQDN, a URL, and an Ethernet address.

[0149] In the embodiment, the seventh information includes the address information corresponding to the first core network device and the third indication information, so that the first communication channel can be quickly established, and the established first communication channel is more suitable for transmission requirements.

[0150] Optionally, the method can further include:

[0151] The first core network device sends eighth information for requesting subscription 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; channel information of the first communication channel; and an identifier of the first communication channel.

[0152] In the embodiment, the eighth information can be sent before or after or at the same time as the step of sending the seventh information by the first core network device. Optionally, the first core network device can send the eighth information to the third core network device (for example, a PCF), for example, the AF sends an authorization subscription (Npcf_Authorization_Subscribe) message to the PCF to request subscription to an event. For example, the first core network device can send the eighth information to the PCF after the step of sending the seventh information by the first core network device to request subscription to an event.

[0153] In the embodiment, 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 are carried in the eighth information, so as to associate the subscribed event and the first communication channel with each other.

[0154] Optionally, the method can further include:

[0155] The first core network device receives ninth information, and 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.

[0156] In the embodiment, the first core network device can receive the ninth information from the SMF. For example, the first core network device can receive the ninth information from the SMF after sending the seventh information and before sending the eighth information for requesting subscription to an event, so that the first core network device can send the eighth information based on the ninth information, and the eighth information can carry at least one of the channel information of the first communication channel, the identifier of the first communication channel, and the session identifier.

[0157] See Figure 4 , Figure 4FIG. 3 is a flowchart of another communication method provided by an embodiment of the present application, which can be executed by a second core network device, such as a SMF, as shown in FIG. 3, and includes the following steps: Figure 4

[0158] In step 401, the second core network device receives tenth information, wherein the tenth information includes first policy information.

[0159] In this embodiment, the second core network device can be a SMF. The first policy information mentioned above can be, for example, a PCC rule. The second core network device can receive the tenth information from a PCF, for example, the SMF can receive a session management policy control update response (Npcf_SMPolicyControl_Update response) message from the PCF, and the Npcf_SMPolicyControl_Update response message can carry the PCC rule.

[0160] In step 402, the second core network device sends first information according to the tenth information, wherein 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, and one end of the first communication channel is a radio access network device; the first communication channel is used to report a subscribed event; and not establishing a DRB between a terminal device and a radio access network device.

[0161] 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 a QoS configuration (QoS profile) based on the first policy information, generate tunnel information of the first channel, and send first information carrying the first indication information, the QoS configuration, and the tunnel information of the first channel to the RAN. Wherein, the SMF sending the first information to the RAN can be that the SMF forwards the first information via a core network access and mobility management function (AMF), for example, the SMF sends the first information to the AMF through a Namf_Communication_N1N2MessageTransfer message, and the AMF forwards the first information to the RAN through an N2 message.

[0162] It should be noted that the related content of the first information in this embodiment can refer to the related description of the embodiment shown in FIG. 2, which will not be repeated here. Figure 2

[0163] ​​The embodiment sends the first information to the first communication device through the second core network device, and then the first communication device can perform at least one of the following operations based on the first information: establishing the first communication channel, not establishing the DRB between the radio access network device and the terminal device, and using the first communication channel to send the related content of the subscribed event in the case where the first communication channel exists. In this way, the RAN can quickly feed back information based on a communication channel with one end being the RAN, or can feed back information based on the manner of a subscription event.

[0164] Optionally, the first information further includes at least one of the following:

[0165] Channel information of the first communication channel;

[0166] QoS profile.

[0167] It should be noted that the related content of the first information in this embodiment can refer to the related description of the embodiment shown in Figure 2 , and details are not repeated here.

[0168] Optionally, the tenth information further includes fourth indication information, or the first policy information includes fourth indication information.

[0169] The fourth indication information is used to indicate at least one of the following: establishing the first communication channel, and one end of the first communication channel is the radio access network device; the first communication channel is used for reporting the subscribed event; and not establishing the DRB between the radio access network device and the terminal device.

[0170] In the embodiment, the tenth information further includes the fourth indication information or the first policy information includes the fourth indication information, so that the second core network device can quickly determine the first indication information based on the fourth indication information.

[0171] Optionally, the second core network device does not generate a QoS rule in the case where the tenth information is received.

[0172] For example, the SMF can not generate a QoS rule in the case where the indication of establishing the first communication channel with one end being the radio access network device is received, so as to save resources.

[0173] Optionally, the method can further include:

[0174] The second core network device sends fifth information, and the fifth information is used to request to associate the first communication channel with the first core network device.

[0175] In this embodiment, the second core network device can send fifth information to the first communication device to request association of the first communication channel and the first core network device after sending the first information to the first communication device. For example, the SMF sends the first information to the RAN, the RAN establishes the first communication channel based on the first information and sends an acknowledgement message of channel establishment completion to the SMF, the SMF sends the channel related information (for example, at least one of tunnel info, UE ID, session identifier and channel identifier) to the AF, the AF sends a message requesting subscription of an event to the PCF, the PCF sends the address information corresponding to the first core network device and the channel related information to the SMF according to the subscription event, and the SMF sends a request message carrying the channel related information to the RAN to request the RAN to associate the AF and the previously established channel.

[0176] 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 for receiving and reporting information by different core network devices, and the use rate and flexibility of the first communication channel can be improved.

[0177] Optionally, the fifth information includes at least one of the following:

[0178] The address information corresponding to the first core network device;

[0179] The session identifier;

[0180] The channel information of the first communication channel;

[0181] The identifier of the first communication channel.

[0182] The related content of the fifth information in this embodiment can be referred to the related description of the embodiments shown in Figure 2 The related description of the embodiments shown in

[0183] In this embodiment, 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 is carried in the fifth information, so that the first communication device can more accurately and quickly associate the first communication channel with the first core network device.

[0184] Optionally, the method further includes:

[0185] The second core network device receives sixth information, and the sixth information is used to request activation of the first communication channel.

[0186] In this embodiment, the second core network device can receive the sixth information from the first communication device, for example, the SMF can receive a channel activation request message from the RAN, and can activate the first communication channel in response to the sixth information.

[0187] In actual application, the first communication channel can be in an inactive state, and the sixth information is sent to the second core network device to activate the first communication channel in a case that the first communication device needs to report information, so that power consumption can be saved.

[0188] Optionally, the sixth information includes at least one of the following:

[0189] a session identifier;

[0190] channel information of the first communication channel;

[0191] an identifier of the first communication channel.

[0192] The related content of the sixth information in this embodiment can be referred to the related description of the embodiments shown in Figure 2 , and details are not described herein.

[0193] Optionally, the method further includes:

[0194] The second core network device sends ninth information, and 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.

[0195] In this embodiment, the second core network device can send the ninth information to the first core network device (for example, the AF). For example, the SMF can send the ninth information to the AF in a case that the first communication channel establishment completion confirmation information (that is, the third information) sent by the RAN is received, so that the AF can send the eighth information for requesting to subscribe to an event based on the ninth information, and at least one of the channel information of the first communication channel, the identifier of the first communication channel, and the session identifier can be carried in the information.

[0196] Please refer to Figure 5 , Figure 5 is a flowchart of another communication method provided by the embodiments of the present application, which can be executed by a third core network device, as shown in Figure 5 , and includes the following steps:

[0197] 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 the first policy information, and the first policy information includes the fourth indication information;

[0198] 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 radio access network device; the first communication channel is used for reporting a subscribed event; and a DRB between the radio access network device and the terminal device is not established.

[0199] In this embodiment, the third core network device can be a PCF. The third core network device can send tenth information to the SMF, for example, the PCF can generate first policy information based on an AF session QoS creation request (Nnef_AFsessionWithQoS_Create request) message sent by the AF or a session management policy control update request (Npcf_SMPolicyControl_Update request) message sent by the SMF, and send the tenth information to the SMF, and then the SMF can send 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. The Nnef_AFsessionWithQoS_Create request message and the Npcf_SMPolicyControl_Update request message can carry indication information indicating that the PCF establishes a first communication channel or the first communication channel is used for reporting subscribed events.

[0200] It should be noted that the related content of the tenth information in this embodiment can be referred to the related description of the embodiments shown in Figure 4

[0201] 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 first information to the first communication device based on the tenth information, so that the first communication device can perform at least one of the following operations based on the first information: establishing a first communication channel, not establishing a DRB between a radio access network device and a terminal device, and using the first communication channel to send a subscribed event in the presence of the first communication channel. This makes the RAN can quickly feed back information based on a communication channel for the RAN, or can feed back information based on a subscription event. In addition, the tenth information includes fourth indication information or the 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.

[0202] Optionally, the method can further include:

[0203] The third core network device receives seventh information or eleventh information, the seventh information or the eleventh information is used to request to establish the first communication channel, and the eleventh information is obtained according to fourth information sent by the first communication device.

[0204] In an embodiment, before the third core network device sends the tenth information, the third core network device can receive seventh information from the first core network device (for example, the AF), and can send the tenth information based on the seventh information.​

[0205] In another implementation, the third core network device can receive eleventh information from the SMF before the third core network device sends the tenth information, where the eleventh information can be fourth information received by the SMF from the first communication device, or information newly generated by the SMF based on the fourth information received by the SMF from the first communication device.

[0206] Optionally, the seventh information includes at least one of the following: address information corresponding to the first core network device; and third indication information.

[0207] The third indication information is used to indicate at least one of the following: to establish the first communication channel, and one end of the first communication channel is the radio access network device; and the first communication channel is used to report the subscribed event.

[0208] It should be noted that the related content of the seventh information in this embodiment can be referred to the related description of the embodiment shown in Figure 3 , and details are not described herein.

[0209] Optionally, the eleventh information includes fifth indication information, and the fifth indication information is used to indicate at least one of the following: to establish the first communication channel, and one end of the first communication channel is the radio access network device; and the first communication channel is used to report the subscribed event.

[0210] Optionally, the method can further include:

[0211] 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; channel information of the first communication channel; and identifier of the first communication channel.

[0212] In this embodiment, the third core network device can receive the eighth information from the first core network device. The third core network device can receive the eighth information from the first core network device before or after the step of sending the tenth information by the third core network device.

[0213] It should be noted that the related content of the eighth information in this embodiment can be referred to the related description of the embodiment shown in Figure 3 , and details are not described herein.

[0214] In addition, it should be further noted that each implementation of each of the above embodiments can be combined as needed.

[0215] The embodiments of the present application are described below in conjunction with examples:

[0216] Example 1: Subscription event and channel establishment are performed simultaneously.

[0217] As Figure 6 indicated, the communication method provided by the embodiments of the present application comprises the following steps:

[0218] Step a0, PDU session establishment.

[0219] Step a1, the AF sends a QoS flow modification message (i.e. the seventh information described above) to the PCF via the NEF, for example, a Nnef_AFsessionWithQoS_Create request message, which can comprise indication #1 (i.e. the third indication information described above), which can be used to indicate the PCF to establish a first channel (i.e. the first communication channel described above).

[0220] Step a2, the NEF authorizes the AF request, and at the same time, the NEF can apply a corresponding policy to control the predefined authorized QoS to the AF.

[0221] Step a3, the NEF interacts with the PCF by triggering a policy authorization creation request (Npcf_PolicyAuthorization_Create request) message and providing information.

[0222] In this step, the NEF can send the indication #1 sent by the AF to the PCF.

[0223] 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.

[0224] For example, the PCF sends a policy authorization creation response (Npcf_PolicyAuthorization_Create response) message to the NEF.

[0225] In this step, the PCF can derive the QoS parameters according to the indication #1 (indication #1) provided by the AF and the related parameters provided by the AF in the prior art, and generate the first policy information, for example, a policy and charging control (PCC) rule.

[0226] Step a5, the NEF sends a session creation response message (Nnef_AFsessionWithQoS_Create response) to the AF, which can carry a transaction reference ID and a result indicating whether the request is authorized.

[0227] Step a6, the NEF sends a policy authorization subscription message (Npcf_PolicyAuthorization_Subscribe) to the PCF to subscribe to the notification of the resource allocation status.

[0228] Step a7, when the event condition is met, for example, when the QoS update corresponding to the transmission resource establishment is successful or failed, the PCF sends a policy authorization notification message (Npcf_PolicyAuthorization_Notify) to the NEF to notify the event.

[0229] Step a8, the NEF sends a session notification message (Nnef_AFsessionWithQoS_Notify) to the AF with the event reported by the PCF.

[0230] Step a9, the AF sends a request message to the PCF to subscribe to the event, for example, an XR event, and carries the target address, for example, the target IP, in the request message. For example, the AF sends an authorization subscription message (Npcf_Authorization_Subscribe) to the PCF, which can carry the subscription event information (Event info) and the target IP (Target IP).

[0231] Step a10, the PCF makes a policy decision. The PCF can determine that it needs to send updated policy information or new policy information, i.e., the first policy information mentioned above, to the SMF.

[0232] Step a11, the PCF sends a session management policy control update notification request message (Npcf_SMPolicyControl_UpdateNotify request), which can include updated policy information about the PDU session, i.e., the first policy information mentioned above.

[0233] Optionally, the Npcf_SMPolicyControl_UpdateNotify request can also carry an indication #2, which is used to indicate that the first tunnel is used for event reporting, or to indicate that a first tunnel for event reporting is established, or to indicate that no DRB between the radio access network device and the terminal device is established, or to indicate that no QoS rule is generated. It should be noted that the indication #2 can be the fourth indication information in the above embodiments.

[0234] Step a12, the SMF confirms the PCF request through a session management policy control update notification response (Npcf_SMPolicyControl_UpdateNotify response).

[0235] In this step, the SMF derives a QoS profile according to the first policy information, and generates tunnel information of the first tunnel. At the same time, the SMF can carry an indication #3, which can be used to indicate that the RAN does not need to establish a DRB with the UE, or to indicate that the RAN establishes a first tunnel for event reporting, or to indicate that the first tunnel is used for event reporting.

[0236] It should be noted that in the prior art, the SMF generally generates a QoS rule (QoS rule) and sends it to the UE, but in this example, the SMF can not generate the QoS rule according to the indication information sent by the PCF, i.e. the indication #2. The above-mentioned indication #3 can be the first indication information in the above embodiments.

[0237] Step a13, the SMF sends the QoS profile, tunnel information and indication #3 obtained in step S12 to the RAN via the AMF.

[0238] For example, in this step, the SMF can send a Namf_Communication_N1N2MessageTransfer message to the AMF, which carries the QoS profile, tunnel information and indication #3.

[0239] Step a14, the AMF forwards the N2 message (N2 Message) sent by the SMF to the RAN.

[0240] Step a15, the RAN notifies the UE that the first tunnel has been established, i.e. the event reporting tunnel resource between the AF and the RAN has been established.

[0241] Step a16, according to the information provided in step a13, the RAN can send a tunnel establishment completion acknowledgement message to the SMF after successfully establishing the first tunnel.

[0242] In this step, the RAN can send a tunnel establishment ACK to the SMF through an N2 message. It should be noted that the RAN does not establish a DRB with the UE according to indication #3.

[0243] Step a17, the AMF forwards the N2 SM information to the SMF through a PDU session update session management context request (Nsmf_PDUSession_UpdateSMContext request) service.

[0244] Step a18, the SMF replies with a PDU session update session management context response (Nsmf_PDUSession_UpdateSMContext response).

[0245] Step S19, the SMF can send an 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 detection rule of the new QoS flow.

[0246] Step a20, the UPF can send an N4 session modification response message to the SMF.

[0247] Step a21, since it is uncertain when the RAN reports information, the first tunnel can be in an inactive state, therefore, the RAN can send a request message to request to activate the established first tunnel. The request message can carry at least one of the following: tunnel information, PDU session ID, QoS flow ID (QFI).

[0248] For example, the RAN can send a tunnel activation request message to the SMF, and the tunnel activation request message can carry tunnel information.

[0249] Optionally, the request message can be forwarded through the AMF, which is not limited in this example. It should be noted that the above request information can be the sixth information in the above embodiments.

[0250] Step a22, the SMF replies to the RAN with a tunnel activation response.

[0251] Optionally, the tunnel activation response message can be forwarded through the AMF, which is not limited in the present example.

[0252] Step a23, the RAN reports the subscription event information over the established tunnel (i.e., the first tunnel).

[0253] The subscription event information can include at least one of the following: actual reception of the transmission of the multimedia high data rate low latency (HDRLL) service by the radio access network side device; radio access network device transmission conditions; radio access network device configuration information; radio access network side device recommended information related to the HDRLL multimedia service; QoS adjustment request of the multimedia HDRLL service.

[0254] Step a24, the UPF forwards the information received in step a23 to the AF.

[0255] For example, the UPF can forward the information received in step a23 to the AF through an event exposure notification (Nupf_EventExposure_Notify).

[0256] It should be noted that the above steps a15, a17 to a22 in the present example can be optional steps, i.e., the above steps a15, a17 to a22 in the present example can be executed or not executed.

[0257] Example two: subscription event and tunnel establishment are independent of each other, and subsequent association is performed.

[0258] As shown in Figure 7 The communication method provided by the embodiments of the present application includes the following steps:

[0259] Step b1, the UE needs to use the HDRLL service, such as the XR service, to establish a PDU session, or the UE needs to use the HDRLL service, and a PDU session is established for event reporting.

[0260] Step b2, the RAN sends a request message to the SMF to establish a first tunnel, which can carry an indication information indicating the establishment of a first tunnel for event reporting, or indicating that the first tunnel is used for reporting the subscribed event.

[0261] For example, the RAN can send a N2 message to the SMF, the N2 message carrying an indication #4, the indication #4 indicating that a first channel for event reporting is established, or indicating that the first channel is for reporting subscribed events.

[0262] It should be noted that the first channel described above can be the first communication channel in the above embodiments. The indication #4 described above can be the second indication information in the above embodiments.

[0263] Step b3, the AMF forwards the message of step b2 to the SMF.

[0264] For example, the AMF can send a Namf_PDUSession_UpdateSMContext message to the SMF, the Namf_PDUSession_UpdateSMContext message carrying the indication #4 described above or an indication #5, wherein the indication #5 can be generated by the AMF according to the indication #4, and can be used to indicate that a first channel for event reporting is established, or indicate that the first channel is for reporting subscribed events.

[0265] Step b4, according to the indication information in step b2 or step b3, the SMF sends a request message to the PCF to request policy update, the request message can carry an indication information, the indication information can indicate that a first channel for event reporting is established, or indicate that the first channel is for reporting subscribed events.

[0266] For example, the SMF sends a Npcf_SMPolicyControl_Update request message to the PCF, the Npcf_SMPolicyControl_Update request message carrying an indication #6, the indication #6 can indicate that a first channel for event reporting is established, or indicate that the first channel is for reporting subscribed events.

[0267] Step b5, the PCF makes a policy decision, i.e. the PCF derives QoS parameters according to the request message in step b4, and generates first policy information, i.e. PCC rules.

[0268] Step b6, the PCF sends the information obtained in step b5 to the SMF.

[0269] For example, the PCF sends a session management policy control update response (Npcf_SMPolicyControl_Update response) message to the SMF, which can carry the PCC rule.

[0270] Optionally, the message sent by the PCF to the SMF can further carry an indication information, such as indication #7, which can be used to indicate that the first tunnel is used for event reporting, or to indicate that a first tunnel for event reporting is established, or to indicate that no DRB is established between the wireless access network device and the terminal device, or to indicate that no QoS rule is generated. It should be noted that the indication #7 can be the fourth indication information of the above-mentioned embodiments.

[0271] In step b7, the SMF can derive the QoS configuration according to the information provided by the PCF in step b5 or step b6, and generate the tunnel information of the first tunnel. The SMF can send an indication information, such as indication #8, to the RAN to indicate that the RAN does not need to establish a DRB with the UE, or to indicate that the RAN establishes the first tunnel. Optionally, the SMF can further send at least one of the above-mentioned QoS configuration and the tunnel information of the first tunnel to the RAN.

[0272] For example, the SMF can send the indication #8, the QoS configuration and the tunnel information of the first tunnel to the RAN through an N2 message.

[0273] In addition, it should be noted that the SMF in this example can not generate a QoS rule for the UE.

[0274] In step b8, according to the information provided in step b7, the RAN sends an acknowledgement message to the SMF after successfully establishing the first tunnel.

[0275] It should be noted that the RAN can not establish a DRB with the UE according to the indication information.

[0276] In step b9, the SMF sends the tunnel related information (for example, at least one of the tunnel info, the UE ID, the session identifier and the tunnel identifier) to the AF. It can be understood that the SMF can send the tunnel related information to the AF via a plurality of network elements.

[0277] In step b10, the AF sends a request message to the PCF to subscribe to an event, for example, an XR event, which can carry a target address and the tunnel related information (i.e., at least one of the tunnel info, the UE ID, the session identifier and the tunnel identifier) obtained in step b9.

[0278] For example, the AF sends an Npcf_Authorization_Subscribe message to the NEF, which can carry at least one of the following: subscription event information, target IP, session ID, and QoS flow ID.

[0279] Step b11, NEF authentication.

[0280] Step b12, NEF forwards the message sent in step b10 to PCF after successful authentication.

[0281] For example, the NEF forwards the Npcf_Authorization_Subscribe message to the PCF.

[0282] Step b13, PCF sends the target address and the channel-related information obtained in step b9 to the SMF according to the subscription event.

[0283] For example, the PCF can send an Npcf_SMPolicyControl_UpdateNotify request message to the SMF, which can carry the target IP, session ID, and QoS flow ID.

[0284] Step b14, SMF sends a request message carrying channel-related information to the RAN to request the RAN to associate the AF and the previously established channel, for example, to associate the AF corresponding to the target IP and the channel corresponding to the QoS flow ID.

[0285] For example, the SMF can send an N2 message to the RAN, which carries the target IP, session ID, and QoS flow ID.

[0286] Step b15, RAN returns an acknowledgment message.

[0287] Step b16, SMF returns an acknowledgment message.

[0288] For example, the SMF can send an Npcf_SMPolicyControl_UpdateNotify response message to the PCF.

[0289] Step b17, PCF returns an acknowledgment message to confirm that the event subscription is successful.

[0290] For example, the PCF can send an authorization subscription response (Npcf_Authorization_SubscribeResponse) message to the AF to confirm that the event subscription is successful.

[0291] In step b18, the RAN reports the subscription event information over the established channel (i.e., the first channel).

[0292] The subscription event information (i.e., the second information described above) can include at least one of the following: actual reception of a transmission multimedia high data rate low latency (HDRLL) service by the radio access network side device; radio access network device transmission conditions; radio access network device configuration information; radio access network side device recommended information related to the HDRLL multimedia service; and a QoS adjustment request for the multimedia HDRLL service.

[0293] In step b19, the UPF forwards the information received in step b18 to the AF.

[0294] For example, the UPF can forward the information received in step a23 to the AF through an event exposure notification (Nupf_EventExposure_Notify) message.

[0295] It should be noted that the communication method provided in the embodiments of the present application can be executed by a communication device, or a control module in the communication device for executing the communication method. In the embodiments of the present application, the communication device executes the communication method as an example to illustrate the communication device provided in the embodiments of the present application.

[0296] Please refer to Figure 8 , Figure 8 is a structural diagram of a communication device provided in the embodiments of the present application, as Figure 8 shown, the communication device 800 includes:

[0297] 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 one end of the first communication channel is a radio access network device; the first communication channel is used to report a subscribed event; and a data radio bearer (DRB) between the radio access network device and a terminal device is not established.

[0298] The execution module 802 is 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 the DRB between the radio access network device and the terminal device; and sending second information using the first communication channel in the presence of the first communication channel; and the second information is related content of the subscribed event.

[0299] Optionally, the first information further comprises at least one of the following:

[0300] channel information of the first communication channel;

[0301] a quality of service profile.

[0302] Optionally, the apparatus further comprises:

[0303] a first sending module configured to send third information, the third information being used to indicate that the first communication channel is established.

[0304] Optionally, the apparatus further comprises:

[0305] a second sending module configured to send fourth information before the step of receiving the first information by the first communication device, the fourth information being used to request to establish the first communication channel.

[0306] Optionally, the fourth information comprises second indication information, the second indication information being used to indicate at least one of the following: the 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 a subscribed event; and a DRB between the radio access network device and the terminal device is not established.

[0307] Optionally, the apparatus further comprises:

[0308] a first receiving module configured to receive fifth information, the fifth information being used to request to associate the first communication channel with a first core network device.

[0309] Optionally, the fifth information comprises at least one of the following:

[0310] address information corresponding to the first core network device;

[0311] a session identifier;

[0312] channel information of the first communication channel;

[0313] an identifier of the first communication channel.

[0314] Optionally, the apparatus further comprises:

[0315] a third sending module configured to send sixth information, the sixth information being used to request to activate the first communication channel.

[0316] Optionally, the sixth information comprises at least one of the following:

[0317] a session identifier;

[0318] channel information of the first communication channel;

[0319] an identity of the first communication channel.

[0320] Optionally, the second information comprises at least one of the following:

[0321] information related to actual transmission of the HDR LLL traffic by the radio access network device;

[0322] a transmission condition of the radio access network device;

[0323] configuration information of the radio access network device;

[0324] information related to the HDR LLL traffic recommended by the radio access network device;

[0325] a QoS adjustment request for the HDR LLL traffic.

[0326] The communication apparatus in the embodiments of the present application can be a device, a device with an operating system, or an electronic device, and can also be a component, an integrated circuit, or a chip in a radio access network device or a terminal device. Exemplarily, the radio access network device can include, but is not limited to, the types of the radio access network device 12 listed above, and the terminal device can include, but is not limited to, the types of the terminal device 11 listed above.

[0327] The communication apparatus provided in the embodiments of the present application can implement the various processes of the method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein. Figure 2 The method embodiments implement the various processes and achieve the same technical effects. To avoid repetition, details are not described herein.

[0328] Please refer to Figure 9 , Figure 9 is a structural diagram of a communication apparatus provided in the embodiments of the present application, as shown in Figure 9 , the communication apparatus 900 comprises:

[0329] a fourth sending module 901 configured to send seventh information, the seventh information being used to request establishment of a first communication channel, the first communication channel being used to report a subscribed event, or one end of the first communication channel being a radio access network device.

[0330] Optionally, the seventh information comprises at least one of the following: address information corresponding to the first core network device; third indication information.

[0331] The third indication information is used to indicate at least one of the following: the 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 a subscribed event.

[0332] Optionally, the apparatus further comprises:

[0333] The fourth sending module is configured to send eighth information for requesting subscription of an event, the eighth information comprising at least one of the following: subscription event information; address information corresponding to the first core network device; a session identifier; channel information of a first communication channel; an identifier of the first communication channel; and wherein the first communication channel is used for the radio access network device to report the event.

[0334] Optionally, the apparatus further comprises:

[0335] The second receiving module is configured to receive ninth information, the ninth information comprising 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.

[0336] The communication apparatus in the embodiments of the present application can be a device, a device with an operating system, or an electronic device, and can also be a component, an integrated circuit, or a chip in a core network device. Exemplarily, the core network device can include, but is not limited to, the types of the core network device 13 listed above.

[0337] The communication apparatus provided in the embodiments of the present application can implement the various processes of the method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein. Figure 3

[0338] Please refer to Figure 10 , Figure 10 is a structural diagram of a communication apparatus provided in the embodiments of the present application, as shown in Figure 10 , the communication apparatus 1000 comprises:

[0339] The third receiving module 1001 is configured to receive tenth information; the tenth information comprising first policy information;

[0340] The fifth sending module 1002 is configured to send first information according to the tenth information; the first information comprising first indication information, the first indication information being used to indicate at least one of the following: to establish a first communication channel, and one end of the first communication channel being a radio access network device; the first communication channel being used for reporting a subscribed event; and not to establish a data radio bearer DRB between a terminal device and the radio access network device.

[0341] Optionally, the first information further comprises at least one of the following:

[0342] Channel information of the first communication channel;

[0343] Quality of service configuration QoS profile.

[0344] Optionally, the tenth information further comprises fourth indication information, or the first policy information comprises fourth indication information. ​

[0345] The fourth indication information is used for indicating at least one of the following: establishing the first communication channel, and one end of the first communication channel is a radio access network device; the first communication channel is used for reporting a subscribed event; and no DRB between the radio access network device and the terminal device is established.

[0346] Optionally, the second core network device does not generate a QoS rule upon receiving the tenth information.

[0347] Optionally, the apparatus further includes:

[0348] A sixth sending module, configured to send fifth information, the fifth information being used for requesting association of the first communication channel and a first core network device.

[0349] Optionally, the fifth information includes at least one of the following:

[0350] Address information corresponding to the first core network device;

[0351] A session identifier;

[0352] Channel information of the first communication channel;

[0353] An identifier of the first communication channel.

[0354] Optionally, the apparatus further includes:

[0355] A fourth receiving module, configured to receive sixth information, the sixth information being used for requesting activation of the first communication channel.

[0356] Optionally, the sixth information includes at least one of the following:

[0357] A session identifier;

[0358] Channel information of the first communication channel;

[0359] An identifier of the first communication channel.

[0360] Optionally, the apparatus further includes:

[0361] A seventh sending module, configured to send ninth information, the ninth information including 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.

[0362] The communication apparatus in the embodiments of the present application can be an apparatus, an apparatus with an operating system, or an electronic device, and can also be a component, an integrated circuit, or a chip in a core network device. Exemplarily, the core network device can include, but is not limited to, the types of the core network device 13 listed above.

[0363] The communication device provided by the embodiment of the application can implement Figure 4 The method embodiment implements various processes and achieves the same technical effects. To avoid repetition, details are not described herein.

[0364] Please refer to Figure 11 , Figure 11 is a structural diagram of a communication device provided by the embodiment of the application, as shown in Figure 11 The communication device 1100 includes:

[0365] The eighth sending module 1101 is configured to send tenth information; the tenth information includes first policy information and fourth indication information, or the tenth information includes the first policy information, and the first policy information includes the fourth indication information.

[0366] 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 radio access network device; the first communication channel is used to report a subscribed event; and a data radio bearer (DRB) between the radio access network device and a terminal device is not established.

[0367] Optionally, the device further includes:

[0368] The fifth receiving module is configured to receive seventh information or eleventh information, the seventh information or the eleventh information is used to request to establish the first communication channel, and the eleventh information is obtained according to fourth information sent by a first communication device.

[0369] Optionally, the seventh information includes at least one of the following: address information corresponding to a first core network device; and third indication information.

[0370] The third indication information is used to indicate at least one of the following: the first communication channel is established, and one end of the first communication channel is the radio access network device; and the first communication channel is used to report the subscribed event.

[0371] Optionally, the eleventh information includes fifth indication information, and the fifth indication information is used to indicate at least one of the following: the first communication channel is established, and one end of the first communication channel is the radio access network device; and the first communication channel is used to report the subscribed event.

[0372] Optionally, the device further includes:

[0373] 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; a session identifier; channel information of the first communication channel; and an identifier of the first communication channel.

[0374] The communication apparatus in the embodiments of the present application can be a device, a device with an operating system, or an electronic equipment, or a component in a core network device, an integrated circuit, or a chip. Exemplarily, the core network device can include, but is not limited to, the types of the core network device 13 listed above.

[0375] The communication apparatus provided in the embodiments of the present application can implement the various processes of the method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein. Figure 5 The communication apparatus provided in the embodiments of the present application can implement the various processes of the method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein.

[0376] Optionally, as shown in Figure 12 The communication apparatus 1200 is a core network device, and the program or instructions executed by the processor 1201 implement the various processes of the core network device side communication method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein.

[0377] The present application also provides a wireless access network device, comprising a processor and a communication interface, wherein the communication interface is configured to receive first information; the first information comprises 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 one end of the first communication channel is the wireless access network device; the first communication channel is used to report a subscribed event; no DRB between the wireless access network device and a terminal device is established; the processor is configured to perform a first operation according to the first information; the first operation comprises at least one of the following: the first communication channel is established; no DRB between the wireless access network device and the terminal device is established; the second information is sent using the first communication channel in the case that the first communication channel exists; and the second information is related content of the subscribed event. The communication device embodiment corresponds to the wireless access network device side method embodiment, and the various implementation processes and implementation manners of the method embodiment can be applied to the wireless access network device embodiment and achieve the same technical effects.

[0378] Specifically, the present application also provides a wireless access network device. As Figure 13As shown, 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, which processes the received information and sends it out through the antenna 131.

[0379] The above frequency band processing device can be located in the baseband device 133, and the method performed by the radio access network device in the above embodiments can be implemented in the baseband device 133, which includes a processor 134 and a memory 135.

[0380] The baseband device 133 may, for example, include at least one baseband board on which a plurality of chips are disposed, such as Figure 13 As shown, one of the chips is, for example, a processor 134 connected to the memory 135 to invoke programs in the memory 135 to perform the operations of the radio access network device shown in the above method embodiments.

[0381] The baseband device 133 can also include a network interface 136 for interacting with the radio frequency device 132, which is, for example, a common public radio interface (CPRI).

[0382] Specifically, the radio access network device of the embodiments of the present application further includes instructions or programs stored on the memory 135 and executable on the processor 134, and the processor 134 invokes the instructions or programs in the memory 135 to perform Figure 8 The methods performed by the modules shown above achieve the same technical effects, and thus will not be described here to avoid repetition.

[0383] The embodiments of the present application also provide a core network device including a processor and a communication interface, wherein the communication interface is configured to send seventh information, the seventh information being used to request to establish a first communication channel, the first communication channel being used to report a subscribed event, or one end of the first communication channel being a radio access network device.

[0384] Or

[0385] The communication interface is configured to receive tenth information; the tenth information includes first policy information; according to the tenth information, the first information is sent; 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, and one end of the first communication channel is a radio access network device; the first communication channel is used to report a subscribed event; and a DRB between the terminal device and the radio access network device is not established.

[0386] Or

[0387] The communication interface is 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 indication information; wherein the fourth indication information is used to indicate at least one of the following: establishing 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 a subscribed event; and a DRB between the radio access network device and the terminal device is not established.

[0388] The core network device embodiment corresponds to the above-mentioned core network device side method embodiment, and each implementation process and implementation manner of the above-mentioned method embodiment can be applied to the core network device embodiment, and the same technical effects can be achieved.

[0389] Specifically, the embodiment of the application further provides a core network device. As shown in Figure 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.

[0390] In the embodiment of the application, the core network device 1400 further includes a computer program stored on the memory 1402 and executable on the processor 1401.

[0391] It should be understood that the processor 1401 and the transceiver 1404 in the embodiment of the application can realize each process of the core network device in the above-mentioned method embodiment, and achieve the same technical effects. To avoid repetition, it will not be described here.

[0392] The embodiment of the application further provides a readable storage medium, which can be volatile or non-volatile. The readable storage medium stores a program or instructions, which are executed by a processor to realize each process of the above-mentioned first communication device side communication method embodiment, or to realize each process of the core network device side communication method embodiment, and achieve the same technical effects. To avoid repetition, it will not be described here.

[0393] The processor is the processor in the first communication device in the above embodiments, or the processor in the core network device in the above embodiments. The readable storage medium includes a computer readable storage medium, such as a computer readable only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, etc.

[0394] The embodiment of the present application further provides a chip, which comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running programs or instructions to realize the processes of the communication method embodiments on the first communication device side or the communication method embodiments on the core network device side, and the same technical effects can be achieved. To avoid repetition, details are not described herein.

[0395] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system chip, a system chip, a chip system or a system on chip, etc.

[0396] The embodiment of the present application further provides a computer program or program product, which is stored in a non-transient readable storage medium, and the program or program product is executed by at least one processor to realize the processes of the communication method embodiments on the first communication device side or the communication method embodiments on the core network device side, and the same technical effects can be achieved. To avoid repetition, details are not described herein.

[0397] It should be noted that in this paper, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to the order of functions shown or discussed, but can also include functions performed in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps S can also be added, omitted or combined. In addition, the features described with reference to some examples can be combined in other examples.

[0398] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned example methods can be realized by means of software and a necessary general hardware platform, and of course, can also be realized by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a computer software product in essence or in the form of a part that contributes to the prior art, which is stored in a storage medium (such as a ROM / RAM, a magnetic disc, an optical disc), and includes a plurality of instructions for causing a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network side device, etc.) to execute the methods described in various embodiments of the present application.

[0399] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative and not restrictive. Those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A communication method characterized by comprising: Comprising: A first communication device receives first information; The first information includes first indication information, the first indication information is used to indicate to establish a first communication channel, or the first indication information is used to indicate to establish a first communication channel and not to establish a DRB between a wireless access network device and a terminal device, wherein one end of the first communication channel is a wireless access network device, and the first communication channel is used to report a subscribed event; 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; Using the first communication channel to send second information in the case of existing first communication channel; Or, the first operation includes not establishing a DRB between a wireless access network device and a terminal device and at least one of the following: establishing the first communication channel; Using the first communication channel to send second information in the case of existing first communication channel; Wherein the second information is the related content of the subscribed event; Wherein the wireless access network device is a base station.

2. The method of 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.

3. The method of claim 1, wherein, The method further comprises: The first communication device sends third information; The third information is used to indicate that the first communication channel is established.

4. The method of claim 1, wherein, Before the step of the first communication device receiving first information, the method further comprises: The first communication device sends fourth information, the fourth information is used to request to establish the first communication channel.

5. The method of claim 4, wherein, The fourth information includes second indication information, the second 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 a subscribed event; Do not establish a DRB between a wireless access network device and a terminal device.

6. The method of claim 1, wherein, The method further comprises: The first communication device receives fifth information, the fifth information is used to request to associate the first communication channel with a first core network device.

7. The method of claim 6, wherein, The fifth information includes at least one of the following: Address information corresponding to the first core network device; Session identifier; Channel information of the first communication channel; The identifier of the first communication channel.

8. The method of claim 1, wherein, The method further comprises: The first communication device sends sixth information, the sixth information is used to request to activate the first communication channel.

9. The method of claim 8, wherein, The sixth information includes at least one of the following: Session identifier; Channel information of the first communication channel; The identifier of the first communication channel.

10. The method of claim 1, wherein, The second information includes at least one of the following: Information related to the actual transmission of the wireless access network device HDRLL service; Wireless access network device transmission condition; Wireless access network device configuration information; Wireless access network device recommended information related to HDRLL service; QoS adjustment request of HDRLL service.

11. A communication method, comprising: Comprising: A first core network device sends seventh information, the seventh information is used to request to establish a first communication channel, the first communication channel is used to report a subscribed event, and one end of the first communication channel is a wireless access network device; Wherein the wireless access network device is a base station.

12. The method of 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; The third indication information is used for indicating at least one of the following: establishing the first communication channel, and one end of the first communication channel is a radio access network device; and the first communication channel is used for reporting the subscribed event.

13. The method of claim 11, wherein, The method further includes: The first core network device sends eighth information for 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; channel information of the first communication channel; and identifier of the first communication channel.

14. The method of claim 11, wherein, The method further includes: The first core network device receives ninth information, and the ninth information includes at least one of the following: channel information of the first communication channel; identifier of the first communication channel; session identifier; and terminal device identifier.

15. A method of communication, comprising: 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 for indicating to establish the first communication channel, or the first indication information is used for indicating to establish the first communication channel and not to establish a DRB between the radio access network device and the terminal device, wherein one end of the first communication channel is a radio access network device, and the first communication channel is used for reporting the subscribed event; and the radio access network device is a base station.

16. The method of 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).

17. The method of claim 15, wherein, The tenth information further includes fourth indication information, or the first policy information includes fourth indication information; The fourth indication information is used for indicating at least one of the following: establishing the first communication channel, and one end of the first communication channel is a radio access network device; the first communication channel is used for reporting the subscribed event; and not establishing a DRB between the radio access network device and the terminal device.

18. The method of claim 15, wherein, The second core network device does not generate a QoS rule in a case where the tenth information is received.

19. The method of claim 15, wherein, The method further includes: The second core network device sends fifth information, and the fifth information is used for requesting to associate the first communication channel with the first core network device.

20. The method of claim 19, wherein, The fifth information includes at least one of the following: Address information corresponding to the first core network device; Session identifier; Channel information of the first communication channel; Identifier of the first communication channel.

21. The method of claim 15, wherein, The method further includes: The second core network device receives sixth information, and the sixth information is used for requesting to activate the first communication channel.

22. The method of claim 21, wherein, The sixth information includes at least one of the following: Session identifier; Channel information of the first communication channel; Identifier of the first communication channel.

23. The method of claim 15, wherein, The method further includes: The second core network device sends ninth information, and the ninth information includes at least one of the following: channel information of the first communication channel; identifier of the first communication channel; session identifier; and terminal device identifier.

24. A method of communication, comprising: Includes: The third core network device sends tenth information; The tenth information comprises first policy information and fourth indication information, or the tenth information comprises first policy information, and the first policy information comprises fourth indication information. The fourth indication information is used for indicating establishment of the first communication channel, or the fourth indication information is used for indicating establishment of the first communication channel and non-establishment of the DRB between the radio access network device and the terminal device, wherein one end of the first communication channel is the radio access network device, and the first communication channel is used for reporting the subscribed event; and the radio access network device is a base station.

25. The method of claim 24, wherein, The method further comprises: The third core network device receives seventh information or eleventh information, the seventh information or the eleventh information is used for requesting establishment of the first communication channel, and the eleventh information is obtained according to fourth information sent by the first communication device.

26. The method of claim 25, wherein, The seventh information comprises at least one of the following: address information corresponding to the first core network device; third indication information; The third indication information is used for indicating at least one of the following: establishment of the first communication channel, and one end of the first communication channel is the radio access network device; and the first communication channel is used for reporting the subscribed event.

27. The method of claim 25, wherein, The eleventh information comprises fifth indication information, and the fifth indication information is used for indicating at least one of the following: establishment of the first communication channel, and one end of the first communication channel is the radio access network device; and the first communication channel is used for reporting the subscribed event.

28. The method of claim 24, wherein, The method further comprises: The third core network device receives eighth information requesting subscription of an event, and the eighth information comprises at least one of the following: subscription event information; address information corresponding to the first core network device; a session identifier; channel information of the first communication channel; and an identifier of the first communication channel.

29. A communications device, characterized by Comprise: The receiving module is configured to receive first information. The first information comprises first indication information, and the first indication information is used for indicating establishment of the first communication channel, or the first indication information is used for indicating establishment of the first communication channel and non-establishment of the DRB between the radio access network device and the terminal device, wherein one end of the first communication channel is the radio access network device, and the first communication channel is used for reporting the subscribed event. The execution module is configured to perform a first operation according to the first information; the first operation comprises at least one of the following: establishment of the first communication channel; sending second information using the first communication channel in the case that the first communication channel exists; or the first operation comprises non-establishment of the DRB between the radio access network device and the terminal device and at least one of the following: establishment of the first communication channel; and sending second information using the first communication channel in the case that the first communication channel exists; wherein the second information is related content of the subscribed event. The radio access network device is a base station.

30. A communications device, characterized by Comprise: The fourth sending module is configured to send seventh information, the seventh information is used for requesting establishment of the first communication channel, the first communication channel is used for reporting the subscribed event, and one end of the first communication channel is the radio access network device; and the radio access network device is a base station.

31. A communications device, characterized by Comprise: The third receiving module is configured to receive tenth information. The tenth information comprises first policy information. The fifth sending module is configured to send first information according to the tenth information, wherein the first information comprises first indication information, and the first indication information is used to indicate establishment of a first communication channel or is used to indicate establishment of the first communication channel and non-establishment of a DRB between a radio access network device and a terminal device, wherein one end of the first communication channel is the radio access network device, and the first communication channel is used to report a subscribed event; and the radio access network device is a base station.

32. A communications device, characterized by The method comprises: The eighth sending module is configured to send the tenth information. The tenth information comprises first policy information and fourth indication information, or the tenth information comprises the first policy information, and the first policy information comprises the fourth indication information. The fourth indication information is used to indicate establishment of a first communication channel or is used to indicate establishment of the first communication channel and non-establishment of a DRB between a radio access network device and a terminal device, wherein one end of the first communication channel is the radio access network device, and the first communication channel is used to report a subscribed event; and the radio access network device is a base station.

33. A communications device, characterized by The apparatus comprises a processor, a memory, and a program or instructions stored in the memory and executable on the processor, and the program or instructions are executed by the processor to implement the steps of the communication method according to any one of claims 1 to 10.

34. A core network device, comprising: The apparatus comprises a processor, a memory, and a program or instructions stored in the memory and executable on the processor, and the program or instructions are executed by the processor to implement the steps of the communication method according to any one of claims 11 to 14, or implement the steps of the communication method according to any one of claims 15 to 23, or implement the steps of the communication method according to any one of claims 24 to 28.

35. A readable storage medium characterized by, The readable storage medium stores a program or instructions, and the program or instructions are executed by the processor to implement the communication method according to any one of claims 1 to 10, or implement the steps of the communication method according to any one of claims 11 to 14, or implement the steps of the communication method according to any one of claims 15 to 23, or implement the steps of the communication method according to any one of claims 24 to 28.

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