Information control method, device, network function and readable storage medium

Abstract

The present application discloses an information control method, apparatus, network function, and readable storage medium, belonging to the field of communication technology. The information control method of an embodiment of the present application includes: a radio access network (RAN) node sending interaction assistance information to a first core network function; the interaction assistance information is used to assist the first core network function in interacting with a second core network function in information related to multicast broadcast services or session management, or the interaction assistance information is used to assist the first core network function in refusing to interact with the second core network function in information related to multicast broadcast services or session management.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to an information control method, device, network function and readable storage medium. Background Art

[0002] When a communication network provides multicast services, it often establishes a shared channel between Radio Access Network (RAN) nodes and Core Network (CN) nodes to transmit a single copy of data. The RAN node then sends the received data to multiple terminals. In the existing shared channel establishment and / or release process, the Access Mobility Management Function (AMF) needs to invoke the service-based operations of the Multicast and Broadcast Session Management Function (MB-SMF), resulting in cumbersome interactions between different core network functions. Summary of the Invention

[0003] The embodiments of the present application provide an information control method, device, network function and readable storage medium to solve the problem of cumbersome interaction operations between different core network functions.

[0004] In a first aspect, an information control method is provided, comprising:

[0005] The RAN node sends interaction assistance information to the first core network function;

[0006] In which, the interactive auxiliary information is used to assist the first core network function to interact with the second core network function in exchanging information related to multicast broadcast services or session management, or the interactive auxiliary information is used to assist the first core network function to refuse to interact with the second core network function in exchanging information related to multicast broadcast services or session management.

[0007] In a second aspect, an information control method is provided, comprising:

[0008] The first core network function receives interaction assistance information from the RAN node;

[0009] The first core network function exchanges information related to multicast broadcast services or session management with the second core network function based on the interaction auxiliary information, or refuses to exchange information related to multicast broadcast services or session management with the second core network function.

[0010] In a third aspect, an information control device is provided, comprising:

[0011] A sending module, configured to send interaction auxiliary information to the first core network function;

[0012] In which, the interactive auxiliary information is used to assist the first core network function to interact with the second core network function in exchanging information related to multicast broadcast services or session management, or the interactive auxiliary information is used to assist the first core network function to refuse to interact with the second core network function in exchanging information related to multicast broadcast services or session management.

[0013] In a fourth aspect, an information control device is provided, comprising:

[0014] A receiving module, configured to receive interaction assistance information from a RAN node;

[0015] The processing module is used to interact with the second core network function for information related to multicast broadcast services or session management based on the interactive auxiliary information, or to refuse to interact with the second core network function for information related to multicast broadcast services or session management.

[0016] In a fifth aspect, a network function is provided, which includes a processor, a memory, and a program or instruction stored on the memory and runnable on the processor, wherein when the program or instruction is executed by the processor, the steps of the method described in the first aspect or the steps of the method described in the second aspect are implemented.

[0017] In a sixth aspect, a network function is provided, including a processor and a communication interface, wherein, when the network function is a RAN node, the communication interface is used to send interaction assistance information to a first core network function, and the interaction assistance information is used to assist the first core network function to interact with the second core network function to exchange information related to multicast broadcast services or session management, or, the interaction assistance information is used to assist the first core network function to refuse to interact with the second core network function to exchange information related to multicast broadcast services or session management; or, when the network function is the first core network function, the communication interface is used to receive interaction assistance information from the RAN node, and the processor is used to interact with the second core network function to exchange information related to multicast broadcast services or session management based on the interaction assistance information, or, refuse to interact with the second core network function to exchange information related to multicast broadcast services or session management.

[0018] In the seventh aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0019] In an eighth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0020] In the ninth aspect, a computer program / program product is provided, which is stored in a non-volatile storage medium, and the program / program product is executed by at least one processor to implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect.

[0021] In an embodiment of the present application, a RAN node may send interaction assistance information to a first core network function, where the interaction assistance information is used to assist the first core network function in exchanging information related to multicast broadcast services or session management with a second core network function, or to assist the first core network function in refusing to exchange information related to multicast broadcast services or session management with the second core network function. Thus, with the help of the interaction assistance information sent by the RAN node, the first core network function may exchange or refuse to exchange information related to multicast broadcast services or session management with the second core network function, thereby reducing unnecessary signaling interaction processes between the first core network function and the second core network function, and optimizing the interaction between different core network functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0023] Figure 2 Schematic diagram of a shared channel unicast transmission method in an embodiment of the present application;

[0024] Figure 3 Schematic diagram of a shared channel multicast transmission method in an embodiment of the present application;

[0025] Figure 4 A flowchart of an information control method provided in an embodiment of the present application;

[0026] Figure 5 A flowchart of another information control method provided in an embodiment of the present application;

[0027] Figure 6 A schematic diagram of the structure of an information control device provided in an embodiment of the present application;

[0028] Figure 7 A schematic diagram of the structure of another information control device provided in an embodiment of the present application;

[0029] Figure 8 A schematic diagram of the structure of a network function provided in this application. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0031] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0032] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, 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 technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to applications other than NR system applications, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0033] Figure 1A block diagram of a wireless communication system applicable to the embodiments of the present application is shown. The wireless communication system includes a terminal 11, a radio access network element 12, and a core network element 13. Among them, the terminal 11 can also be called a terminal device or user equipment (UE). The terminal 11 can be a mobile phone, a tablet personal computer, a laptop computer or a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device (Wearable Device), a vehicle-mounted device (VUE), a pedestrian terminal (PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines, or furniture), and other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, game consoles, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application.

[0034] The radio access network element 12 may be referred to as at least one of the following: RAN equipment, RAN node, radio access network function, radio access network unit; the radio access network element may include but is not limited to at least one of the following: RAN equipment, RAN node, RAN function, RAN unit, Third Generation Partnership Project (3GPP) radio access network, non-3GPP radio access network, centralized unit (CU), distributed unit (DU), base station, evolved Node B (eNB), 5G base station (gNB), radio network controller (RNC), base station (NodeB), non-3GPP interworking function (Non-3GPP Inter Working Function, N3IWF), access control (AC) node, access point (AP) device or wireless local area network (WLAN) node, N3IWF.

[0035] The core network element 13 may be referred to as at least one of the following: a core network device, a core network node, a core network function, or a core network unit. The core network elements may include but are not limited to at least one of the following: Mobility Management Entity (MME), Access Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Multicast and Broadcast Session Management Function (MB-SMF), Multicast and Broadcast User Plane Function (MB-UPF), Serving Gateway (SGW), PDN Gateway (PDN Gate Way, PDN Gateway), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Serving GPRS Support Node (SGSN), Gateway GPRS Support Node (GGSN), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (Home Subscriber Server) Server, HSS), Application Function (AF), Centralized Network Configuration (CNC), etc.

[0036] In order to facilitate understanding of the embodiments of the present application, the following contents are first described.

[0037] When a communication network, such as a 5G network, provides multicast services, a shared channel is established between the RAN node and the CN node to transmit a single copy of data. The RAN node then sends the received data to multiple terminals. The shared channel only transmits downlink data, not uplink data. Therefore, only the RAN and CN nodes need to negotiate shared channel information, such as downlink tunnel information (DL Tunnel Information), including the transport address and tunnel identifier.

[0038] Optional, such as Figure 2 As shown, the CN node can communicate with each RAN node ( Figure 2 The shared channel between the three RAN nodes is used as an example, but not limited to this, to distribute data to each RAN node respectively. Such a shared channel adopts a unicast transmission mode, and the transmission address in the shared channel information is a unicast address.

[0039] Optional, such as Figure 3 As shown, the CN node can use multicast transmission to send data to multiple RAN nodes ( Figure 3 In the example (three RAN nodes are used as an example, but not limited to this), multiple RAN nodes join a multicast group, and the CN node sends a copy of the data to the multicast group through the shared channel. The transmission network distributes this copy of the data to multiple RAN nodes in the multicast group. The transmission address in the shared channel information is the multicast address.

[0040] Currently, when establishing a shared channel, RAN nodes need to negotiate shared channel information, such as DL tunnel information, between the AMF and MB-SMF. If the shared channel uses unicast transmission, the RAN node must provide this shared channel information to the MB-SMF, allowing the CN node to establish a shared channel with each RAN node. If the shared channel uses multicast transmission, the RAN node must obtain this shared channel information from the MB-SMF so that it can join the corresponding multicast group and receive shared channel data from that multicast group. In this case, since the RAN node may already store this shared channel information when the shared channel is multicast, it is not necessary to obtain this shared channel information from the MB-SMF. This means that when establishing the shared channel, there is no need for negotiation of shared channel information between the AMF and MB-SMF, nor is there any signaling exchange between the AMF and MB-SMF. Therefore, the signaling exchange between different core network functions during the existing shared channel establishment process can be optimized.

[0041] To optimize the interoperation between different core network functions, an embodiment of the present application proposes that a RAN node send interaction assistance information to a first core network function. The interaction assistance information is used to assist the first core network function in exchanging information related to multicast broadcast services or session management with a second core network function, or to assist the first core network function in refusing to exchange information related to multicast broadcast services or session management with the second core network function. Thus, with the help of the interaction assistance information sent by the RAN node, the first core network function can exchange or refuse to exchange information related to multicast broadcast services or session management with the second core network function, thereby reducing unnecessary signaling interaction between the first core network function and the second core network function and optimizing the interoperation between different core network functions.

[0042] The information control method, device, network function and readable storage medium provided by the embodiments of the present application are described in detail below with reference to some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0043] See Figure 4 , Figure 4 This is a flow chart of an information control method provided by an embodiment of the present application, which is executed by a RAN node, such as Figure 4 As shown, the method includes the following steps:

[0044] Step 41: The RAN node sends interaction assistance information to the first core network function.

[0045] In this embodiment, the interaction assistance information is used to assist the first core network function in exchanging information related to multicast broadcast services or session management with the second core network function, or to assist the first core network function in refusing to exchange information related to multicast broadcast services or session management with the second core network function. In other words, the interaction assistance information is used to assist the first core network function in invoking or refusing to invoke a service-based operation of the second core network function.

[0046] In some embodiments, the interaction assistance information is used to assist the first core network function and the second core network function in exchanging information related to multicast broadcast service management.

[0047] In some embodiments, the interaction assistance information is used to assist the first core network function and the second core network function in exchanging information related to multicast broadcast session management.

[0048] In some embodiments, the interaction assistance information is used to assist the first core network function in rejecting information related to interaction with the second core network function regarding multicast broadcast service management.

[0049] In some embodiments, the interaction assistance information is used to assist the first core network function in refusing to interact with the second core network function in information related to multicast broadcast session management.

[0050] In some embodiments, the first core network function may be AMF, and correspondingly, the second core network function may be MB-SMF.

[0051] In the information control method of the embodiment of the present application, a RAN node may send interaction assistance information to a first core network function. The interaction assistance information is used to assist the first core network function in exchanging information related to multicast broadcast services or session management with a second core network function, or to assist the first core network function in refusing to exchange information related to multicast broadcast services or session management with the second core network function. Thus, with the interaction assistance information sent by the RAN node, the first core network function may exchange or refuse to exchange information related to multicast broadcast services or session management with the second core network function, thereby reducing unnecessary signaling interaction processes between the first core network function and the second core network function and optimizing the interaction between different core network functions.

[0052] In the embodiment of the present application, the RAN node may send interaction assistance information to the first core network function during the process of establishing or releasing the shared channel. Optionally, the RAN node may send interaction assistance information to the first core network function through any of the following:

[0053] Shared channel establishment request, shared channel release request.

[0054] In some embodiments, the RAN node may carry interaction assistance information in the shared channel establishment request sent to the AMF to assist the AMF in determining whether it is necessary to interact with the MB-SMF. When it is determined that interaction with the MB-SMF is not necessary, the shared channel establishment request / response between the AMF and the MB-SMF is reduced, thereby reducing unnecessary signaling interaction processes between the AMF and the MB-SMF and optimizing the interaction operations between the AMF and the MB-SMF.

[0055] In other embodiments, the RAN node may carry interaction assistance information in the shared channel release request sent to the AMF to assist the AMF in determining whether it is necessary to interact with the MB-SMF. In this way, when it is determined that interaction with the MB-SMF is not necessary, the shared channel release request / response between the AMF and the MB-SMF is reduced, thereby reducing unnecessary signaling interaction processes between the AMF and the MB-SMF and optimizing the interaction operations between the AMF and the MB-SMF.

[0056] Optionally, the interaction auxiliary information may satisfy at least one of the following:

[0057] Including information that needs to be sent to the second core network function; for example, including N2 session management (SM) information and location information that need to be sent to the second core network function;

[0058] It does not include information that needs to be sent to the second core network function; for example, it does not include N2 SM information and location information that need to be sent to the second core network function;

[0059] Including first indication information; wherein the first indication information is used to indicate that interaction with the second core network function is required; or, the first indication information is used to indicate optional interaction with or without the second core network function, or conditional interaction with or without the second core network function;

[0060] The transmission type indication information includes transmission type indication information, where the transmission type indication information is used to indicate at least one of the following: the transmission type is unicast, the transmission type is multicast;

[0061] including first shared channel information;

[0062] The first shared channel information is not included.

[0063] Furthermore, the interactive auxiliary information may satisfy at least one of the following conditions:

[0064] In a case where the interaction assistance information includes information that needs to be sent to the second core network function, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function;

[0065] In the case where the interaction assistance information does not include information that needs to be sent to the second core network function, the interaction assistance information is used to indicate any one of the following: whether the first core network function optionally interacts with or does not interact with the second core network function, and whether the first core network function conditionally interacts with or does not interact with the second core network function;

[0066] When the transmission type indication information included in the interaction assistance information indicates that the transmission type is unicast, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function;

[0067] When the transmission type indication information included in the interaction assistance information indicates that the transmission type is multicast, the interaction assistance information is used to indicate any one of the following: the first core network function optionally interacts with or does not interact with the second core network function, and the first core network function conditionally interacts with or does not interact with the second core network function.

[0068] Optionally, when the interaction assistance information includes the first shared channel information, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function.

[0069] Optionally, when the interaction assistance information does not include the first shared channel information, the interaction assistance information is used to indicate any one of the following: the first core network function optionally interacts with or does not interact with the second core network function, and the first core network function conditionally interacts with or does not interact with the second core network function.

[0070] Optionally, the first shared channel information may include at least one of the following:

[0071] Transport address, tunnel identifier.

[0072] Optionally, when the interaction assistance information includes the first shared channel information, the interaction assistance information may satisfy at least one of the following:

[0073] When the first shared channel information includes a transmission address, and the transmission address is a multicast address, the interaction assistance information is used to indicate any one of the following: whether the first core network function optionally interacts with or does not interact with the second core network function, and whether the first core network function conditionally interacts with or does not interact with the second core network function;

[0074] When the first shared channel information includes a transmission address, and the transmission address is a unicast address or is not a multicast address, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function;

[0075] In a case where the first shared channel information includes a tunnel identifier, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function;

[0076] When the first shared channel information does not include a tunnel identifier, the interaction assistance information is used to indicate any one of the following: the first core network function optionally interacts with or does not interact with the second core network function, and the first core network function conditionally interacts with or does not interact with the second core network function.

[0077] Optionally, the first shared channel information may further include at least one of the following:

[0078] A Multicast and Broadcast Server (MBS) session identifier, used to indicate the multicast broadcast session to which the shared channel belongs. When the first core network function does not need to interact with the second core network function, the RAN node may indicate not to send the MBS session identifier to the first core network function, even though the RAN node needs to send the MBS session identifier to the first core network function.

[0079] MBS Quality of Service (QoS) flow information, which is used to indicate the information or identifier of the QoS flow serving the multicast broadcast service MBS. For example, when the MBS QoS flow changes, the second core network function needs to be notified;

[0080] MBS service area information, used to indicate the multicast broadcast service area;

[0081] The MBS area session identifier is used together with the MBS session identifier in certain scenarios to uniquely identify an MBS session.

[0082] In this embodiment of the present application, the RAN node may send interaction assistance information to the first core network function based on the second shared channel information to assist the first core network function in determining whether information interaction with the second core network function is required. The second shared channel information may include at least one of the following: a transport address and a tunnel identifier.

[0083] Optionally, when a first condition is met, the interaction assistance information is used to indicate any of the following: whether the first core network function optionally interacts with or does not interact with the second core network function, or whether the first core network function conditionally interacts with or does not interact with the second core network function. The first condition includes at least one of the following: the second shared channel information includes a tunnel identifier; the second shared channel information includes a transport address, and the transport address is a multicast address.

[0084] Optionally, when a second condition is met, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function. The second condition includes at least one of the following: the second shared channel information is unknown; the second shared channel information includes a transmission address, and the transmission address is a unicast address or not a multicast address.

[0085] In some embodiments, when the RAN node sends interaction assistance information to the first core network function through a shared channel establishment request, when the second shared channel information includes a tunnel identifier, the interaction assistance information is used to indicate any one of the following: the first core network function optionally interacts with or does not interact with the second core network function, and the first core network function conditionally interacts with or does not interact with the second core network function.

[0086] In some embodiments, when the RAN node sends interaction assistance information to the first core network function through a shared channel establishment request, when the second shared channel information is unknown, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function.

[0087] In some embodiments, when the RAN node sends interaction assistance information to the first core network function through a shared channel release request, when the second shared channel information includes a transmission address and the transmission address is a multicast address, the interaction assistance information is used to indicate any one of the following: the first core network function optionally interacts with or does not interact with the second core network function, and the first core network function conditionally interacts with or does not interact with the second core network function.

[0088] In some embodiments, when the RAN node sends interaction assistance information to the first core network function through a shared channel release request, when the second shared channel information includes a transmission address and the transmission address is a unicast address, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function.

[0089] In some embodiments, before the RAN node sends the interaction assistance information to the AMF based on the shared channel information, it may obtain the shared channel information from a core network function such as the AMF, SMF, and / or MB-SMF. For example, when the shared channel is established, the core network function sends the shared channel information to the RAN node; or when the shared channel is released, the RAN node obtains the shared channel information locally.

[0090] See Figure 5 , Figure 5 This is a flow chart of an information control method provided in an embodiment of the present application, which is executed by a first core network function such as AMF, etc. Figure 5 As shown, the method includes the following steps:

[0091] Step 51: The first core network function receives interaction assistance information from the RAN node.

[0092] In this embodiment, the interaction assistance information is used to assist the first core network function in exchanging information related to multicast broadcast services or session management with the second core network function, or to assist the first core network function in refusing to exchange information related to multicast broadcast services or session management with the second core network function. In other words, the interaction assistance information is used to assist the first core network function in invoking or refusing to invoke a service-based operation of the second core network function.

[0093] Step 52: The first core network function exchanges information related to multicast broadcast services or session management with the second core network function based on the interaction auxiliary information, or refuses to exchange information related to multicast broadcast services or session management with the second core network function.

[0094] In some embodiments, the first core network function may be AMF, and correspondingly, the second core network function may be MB-SMF.

[0095] For example, after receiving the interactive auxiliary information, the first core network function can send information related to multicast broadcast services or session management to the second core network function based on the interactive auxiliary information, or refuse to send information related to multicast broadcast services or session management to the second core network function.

[0096] It should be noted that the information exchanged between the first core network function and the second core network function can be understood as: the first core network function invoking the service-based operation of the second core network function. The first core network function rejecting the information exchanged with the second core network function can be understood as: the first core network function rejecting the service-based operation of the second core network function.

[0097] In some embodiments, when the interaction assistance information indicates that interaction with the second core network function is required, the first core network function interacts with the second core network function on information related to multicast broadcast services or session management, i.e., calls the service-based operation of the second core network function.

[0098] In some embodiments, when the interaction assistance information indicates to optionally (or conditionally) interact with or not interact with the second core network function, the first core network function interacts with the second core network function on information related to multicast broadcast services or session management, i.e., calls the service-based operation of the second core network function.

[0099] In some embodiments, when the interaction assistance information indicates optional (or conditional) interaction with or not with the second core network function, the first core network function refuses to interact with the second core network function for information related to multicast broadcast services or session management, that is, refuses to call the service-based operation of the second core network function.

[0100] In the information control method of an embodiment of the present application, a first core network function can receive interaction assistance information from a RAN node and, based on the received interaction assistance information, exchange or refuse to exchange information related to multicast broadcast services or session management with a second core network function. This can reduce unnecessary signaling interactions between the first core network function and the second core network function, thereby optimizing interoperability between different core network functions.

[0101] In the embodiment of the present application, the RAN node may send interaction assistance information to the first core network function during the process of establishing or releasing the shared channel. Optionally, the first core network function may receive the interaction assistance information from the RAN node through any of the following:

[0102] Shared channel establishment request, shared channel release request.

[0103] In some embodiments, the RAN node may carry interaction assistance information in the shared channel establishment request sent to the AMF to assist the AMF in determining whether it is necessary to interact with the MB-SMF. When it is determined that interaction with the MB-SMF is not necessary, the shared channel establishment request / response between the AMF and the MB-SMF is reduced, thereby reducing unnecessary signaling interaction processes between the AMF and the MB-SMF and optimizing the interaction operations between the AMF and the MB-SMF.

[0104] In other embodiments, the RAN node may carry interaction assistance information in the shared channel release request sent to the AMF to assist the AMF in determining whether it is necessary to interact with the MB-SMF. In this way, when it is determined that interaction with the MB-SMF is not necessary, the shared channel release request / response between the AMF and the MB-SMF is reduced, thereby reducing unnecessary signaling interaction processes between the AMF and the MB-SMF and optimizing the interaction operations between the AMF and the MB-SMF.

[0105] Optionally, the interaction auxiliary information may satisfy at least one of the following:

[0106] Including information that needs to be sent to the second core network function; for example, including N2 SM information and location information that need to be sent to the second core network function;

[0107] It does not include information that needs to be sent to the second core network function; for example, it does not include N2 SM information and location information that need to be sent to the second core network function;

[0108] Including first indication information; wherein the first indication information is used to indicate that interaction with the second core network function is required; or, the first indication information is used to indicate optional interaction with or without the second core network function, or conditional interaction with or without the second core network function;

[0109] The transmission type indication information includes transmission type indication information, where the transmission type indication information is used to indicate at least one of the following: the transmission type is unicast, the transmission type is multicast;

[0110] including first shared channel information;

[0111] The first shared channel information is not included.

[0112] Optionally, the interactive auxiliary information satisfies at least one of the following:

[0113] In a case where the interaction assistance information includes information that needs to be sent to the second core network function, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function;

[0114] In the case where the interaction assistance information does not include information that needs to be sent to the second core network function, the interaction assistance information is used to indicate any one of the following: whether the first core network function optionally interacts with or does not interact with the second core network function, and whether the first core network function conditionally interacts with or does not interact with the second core network function;

[0115] When the transmission type indication information included in the interaction assistance information indicates that the transmission type is unicast, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function;

[0116] When the transmission type indication information included in the interaction assistance information indicates that the transmission type is multicast, the interaction assistance information is used to indicate any one of the following: the first core network function optionally interacts with or does not interact with the second core network function, and the first core network function conditionally interacts with or does not interact with the second core network function.

[0117] Optionally, when the interaction assistance information includes the first shared channel information, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function.

[0118] Optionally, when the interaction assistance information does not include the first shared channel information, the interaction assistance information is used to indicate any one of the following: the first core network function optionally interacts with or does not interact with the second core network function, and the first core network function conditionally interacts with or does not interact with the second core network function.

[0119] Optionally, the first shared channel information may include at least one of the following:

[0120] Transport address, tunnel identifier.

[0121] Optionally, when the interaction assistance information includes the first shared channel information, the interaction assistance information may satisfy at least one of the following:

[0122] When the first shared channel information includes a transmission address, and the transmission address is a multicast address, the interaction assistance information is used to indicate any one of the following: whether the first core network function optionally interacts with or does not interact with the second core network function, and whether the first core network function conditionally interacts with or does not interact with the second core network function;

[0123] When the first shared channel information includes a transmission address, and the transmission address is a unicast address or is not a multicast address, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function;

[0124] In a case where the first shared channel information includes a tunnel identifier, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function;

[0125] When the first shared channel information does not include a tunnel identifier, the interaction assistance information is used to indicate any one of the following: the first core network function optionally interacts with or does not interact with the second core network function, and the first core network function conditionally interacts with or does not interact with the second core network function.

[0126] Optionally, the first shared channel information may further include at least one of the following:

[0127] MBS session identifier, used to indicate the multicast broadcast session to which the shared channel belongs;

[0128] MBS QoS flow information, used to indicate the information or identification of the QoS flow serving the MBS. For example, when the MBS QoS flow changes, the MB-SMF needs to be notified;

[0129] MBS service area information, used to indicate the multicast broadcast service area;

[0130] The MBS area session identifier is used together with the MBS session identifier in certain scenarios to uniquely identify an MBS session.

[0131] Optionally, the information related to interacting with or rejecting the MB-SMF multicast broadcast service or session management based on the interaction assistance information may include at least one of the following:

[0132] When the interaction auxiliary information satisfies at least one of the following, the first core network function and the second core network function interact with each other for multicast broadcast services or session management related information: including information that needs to be sent to the second core network function, including first indication information indicating that interaction with the second core network function is required, including transmission type indication information indicating that the transmission type is unicast, and including shared channel information;

[0133] When the interaction auxiliary information satisfies at least one of the following, the first core network function interacts with or refuses to interact with the second core network function on information related to multicast broadcast services or session management: does not include information that needs to be sent to the second core network function, includes first indication information indicating optional interaction with or without the second core network function, includes first indication information indicating conditional interaction with or without the second core network function, includes transmission type indication information indicating that the transmission type is multicast, and does not include shared channel information.

[0134] Optionally, in an embodiment of the present application, the first core network function may interact with or refuse to interact with the second core network function regarding information related to multicast broadcast services or session management based on the uniqueness of the RAN node when serving multicast services or sessions.

[0135] In some embodiments, when the interaction assistance information indicates that the first core network function optionally interacts with or does not interact with the second core network function, or indicates that the first core network function conditionally interacts with or does not interact with the second core network function, the first core network function may interact with or refuse to interact with the second core network function for information related to multicast broadcast services or session management based on the uniqueness of the RAN node when serving multicast services or sessions.

[0136] Optionally, the information related to interacting with or refusing to interact with the second core network function for multicast broadcast services or session management based on the uniqueness of the RAN node when serving the multicast service may include at least one of the following:

[0137] When the RAN node is the first RAN node or the last RAN node in serving a multicast broadcast service or session, the first core network function exchanges information related to multicast broadcast service or session management with the second core network function, i.e., invokes a service-based operation of the second core network function;

[0138] When the RAN node is not the first RAN node or the last RAN node serving a multicast broadcast service or session, the first core network function refuses to exchange information related to the multicast broadcast service or session management with the second core network function, that is, refuses to call the service-based operation of the second core network function.

[0139] It should be noted that the information control method provided in the embodiments of the present application can be executed by an information control device, or by a control module in the information control device for executing the information control method. In the embodiments of the present application, the information control device provided in the embodiments of the present application is described by taking the information control device executing the information control method as an example.

[0140] See Figure 6 , Figure 6 This is a structural diagram of an information control device provided in an embodiment of the present application, which is applied to a RAN node, such as Figure 6 As shown, the information control device 60 includes:

[0141] A sending module 61 is configured to send interaction assistance information to the first core network function;

[0142] In which, the interactive auxiliary information is used to assist the first core network function to interact with the second core network function in exchanging information related to multicast broadcast services or session management, or the interactive auxiliary information is used to assist the first core network function to refuse to interact with the second core network function in exchanging information related to multicast broadcast services or session management.

[0143] Optionally, the interactive auxiliary information satisfies at least one of the following:

[0144] including information that needs to be sent to the second core network function;

[0145] does not include information that needs to be sent to the second core network function;

[0146] Including first indication information; wherein the first indication information is used to indicate the need to interact with the second core network function; or, the first indication information is used to indicate optional interaction with or non-interaction with the second core network function, or conditional interaction with or non-interaction with the second core network function;

[0147] Including transmission type indication information; wherein, the transmission type indication information is used to indicate at least one of the following: the transmission type is unicast, the transmission type is multicast;

[0148] including first shared channel information;

[0149] The first shared channel information is not included.

[0150] Optionally, the interactive auxiliary information satisfies at least one of the following:

[0151] In a case where the interaction assistance information includes information that needs to be sent to the second core network function, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function;

[0152] In a case where the interaction assistance information does not include information that needs to be sent to the second core network function, the interaction assistance information is used to indicate any one of the following: whether the first core network function optionally interacts with or does not interact with the second core network function, and whether the first core network function conditionally interacts with or does not interact with the second core network function;

[0153] When the transmission type indication information included in the interaction assistance information indicates that the transmission type is unicast, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function;

[0154] In the case where the transmission type indication information included in the interaction assistance information indicates that the transmission type is multicast, the interaction assistance information is used to indicate any one of the following: the first core network function optionally interacts with or does not interact with the second core network function, and the first core network function conditionally interacts with or does not interact with the second core network function.

[0155] Optionally, the first shared channel information includes at least one of the following:

[0156] Transmission address;

[0157] Tunnel ID.

[0158] Optionally, when the interaction assistance information includes first shared channel information, the interaction assistance information satisfies at least one of the following:

[0159] When the first shared channel information includes a transmission address and the transmission address is a multicast address, the interaction assistance information is used to indicate any one of the following: whether the first core network function optionally interacts with or does not interact with the second core network function, and whether the first core network function conditionally interacts with or does not interact with the second core network function;

[0160] When the first shared channel information includes a transmission address, and the transmission address is a unicast address or not a multicast address, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function;

[0161] In a case where the first shared channel information includes a tunnel identifier, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function;

[0162] When the first shared channel information does not include a tunnel identifier, the interaction assistance information is used to indicate any one of the following: the first core network function optionally interacts with or does not interact with the second core network function, and the first core network function conditionally interacts with or does not interact with the second core network function.

[0163] Optionally, the first shared channel information further includes at least one of the following:

[0164] Multicast broadcast service MBS session identifier;

[0165] MBS QoS Flow information;

[0166] MBS service area information;

[0167] MBS zone session identifier.

[0168] Optionally, the sending module 61 is further configured to: send the interaction assistance information to the first core network function according to the second shared channel information.

[0169] Optionally, when the first condition is met, the interaction assistance information indicates any one of the following: the first core network function optionally interacts with or does not interact with the second core network function, or the first core network function conditionally interacts with or does not interact with the second core network function;

[0170] The first condition includes at least one of the following:

[0171] The second shared channel information includes a tunnel identifier;

[0172] The second shared channel information includes a transmission address, and the transmission address is a multicast address.

[0173] Optionally, when the second condition is met, the interaction assistance information indicates that the first core network function needs to interact with the second core network function;

[0174] The second condition includes at least one of the following:

[0175] The second shared channel information is unknown;

[0176] The second shared channel information includes a transmission address, and the transmission address is a unicast address or is not a multicast address.

[0177] Optionally, the sending module 61 is further configured to: send the interaction assistance information to the first core network function by any one of the following:

[0178] Shared channel establishment request, shared channel release request.

[0179] The information control device provided in the embodiment of the present application can achieve Figure 4 The various processes implemented in the method embodiment shown achieve the same technical effect, and to avoid repetition, they will not be described again here.

[0180] See Figure 7 , Figure 7 This is a schematic diagram of the structure of an information control device provided in an embodiment of the present application, which is applied to AMF, such as Figure 7 As shown, the information control device 70 includes:

[0181] A receiving module 71 is configured to receive interaction assistance information from a RAN node;

[0182] The processing module 72 is configured to interact with the second core network function to exchange information related to multicast broadcast services or session management based on the interaction auxiliary information, or to refuse to interact with the second core network function to exchange information related to multicast broadcast services or session management.

[0183] Optionally, the interactive auxiliary information satisfies at least one of the following:

[0184] including information that needs to be sent to the second core network function;

[0185] does not include information that needs to be sent to the second core network function;

[0186] Including first indication information; wherein the first indication information is used to indicate the need to interact with the second core network function; or, the first indication information is used to indicate optional interaction with or non-interaction with the second core network function, or conditional interaction with or non-interaction with the second core network function;

[0187] Including transmission type indication information; wherein, the transmission type indication information is used to indicate at least one of the following: the transmission type is unicast, the transmission type is multicast;

[0188] including first shared channel information;

[0189] The first shared channel information is not included.

[0190] Optionally, the interactive auxiliary information satisfies at least one of the following:

[0191] In a case where the interaction assistance information includes information that needs to be sent to the second core network function, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function;

[0192] In a case where the interaction assistance information does not include information that needs to be sent to the second core network function, the interaction assistance information is used to indicate any one of the following: whether the first core network function optionally interacts with or does not interact with the second core network function, and whether the first core network function conditionally interacts with or does not interact with the second core network function;

[0193] When the transmission type indication information included in the interaction assistance information indicates that the transmission type is unicast, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function;

[0194] In the case where the transmission type indication information included in the interaction assistance information indicates that the transmission type is multicast, the interaction assistance information is used to indicate any one of the following: the first core network function optionally interacts with or does not interact with the second core network function, and the first core network function conditionally interacts with or does not interact with the second core network function.

[0195] Optionally, the first shared channel information includes at least one of the following:

[0196] Transmission address;

[0197] Tunnel ID.

[0198] Optionally, when the interaction assistance information includes first shared channel information, the interaction assistance information satisfies at least one of the following:

[0199] When the first shared channel information includes a transmission address and the transmission address is a multicast address, the interaction assistance information is used to indicate any one of the following: whether the first core network function optionally interacts with or does not interact with the second core network function, and whether the first core network function conditionally interacts with or does not interact with the second core network function;

[0200] When the first shared channel information includes a transmission address, and the transmission address is a unicast address or not a multicast address, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function;

[0201] In a case where the first shared channel information includes a tunnel identifier, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function;

[0202] When the first shared channel information does not include a tunnel identifier, the interaction assistance information is used to indicate any one of the following: the first core network function optionally interacts with or does not interact with the second core network function, and the first core network function conditionally interacts with or does not interact with the second core network function.

[0203] Optionally, when the interaction assistance information indicates that the first core network function optionally interacts with or does not interact with the second core network function, or indicates that the first core network function conditionally interacts with or does not interact with the second core network function, the processing module 72 is further used for at least one of the following:

[0204] When the RAN node is the first RAN node or the last RAN node in serving a multicast broadcast service or session, exchanging information related to multicast broadcast service or session management with the second core network function;

[0205] When the RAN node is not the first RAN node or the last RAN node serving the multicast broadcast service or session, refusing to exchange information related to the multicast broadcast service or session management with the second core network function.

[0206] Optionally, the processing module 72 is further configured to perform at least one of the following:

[0207] Information related to interactive multicast broadcast services or session management with the second core network function when the interaction auxiliary information satisfies at least one of the following: includes information that needs to be sent to the second core network function, includes first indication information indicating that the first core network function needs to interact with the second core network function, includes transmission type indication information indicating that the transmission type is unicast, and includes shared channel information;

[0208] When the interactive auxiliary information satisfies at least one of the following items, the information related to the interactive multicast broadcast service or session management with the second core network function, or the information related to the interactive multicast broadcast service or session management with the second core network function is rejected: does not include information that needs to be sent to the second core network function, includes the first indication information indicating optional interaction with or without the second core network function, includes the first indication information indicating conditional interaction with or without the second core network function, includes the transmission type indication information indicating that the transmission type is multicast, and does not include shared channel information.

[0209] Optionally, the processing module 72 is also used to interact with the second core network function for information related to multicast broadcast services or session management based on the uniqueness of the RAN node when serving multicast broadcast services or sessions, or to refuse to interact with the second core network function for information related to multicast broadcast services or session management.

[0210] Optionally, the processing module 72 is further configured to perform at least one of the following:

[0211] When the RAN node is the first RAN node or the last RAN node in serving a multicast broadcast service or session, exchanging information related to multicast broadcast service or session management with the second core network function;

[0212] When the RAN node is not the first RAN node or the last RAN node serving the multicast broadcast service or session, refusing to exchange information related to the multicast broadcast service or session management with the second core network function.

[0213] The information control device provided in the embodiment of the present application can achieve Figure 5 The various processes implemented in the method embodiment shown achieve the same technical effect, and to avoid repetition, they will not be described again here.

[0214] Optional, such as Figure 8 As shown, the embodiment of the present application further provides a network function 80, including a processor 81, a memory 82, a program or instruction stored in the memory 82 and executable on the processor 81, for example, when the network function 80 is a RAN node, the program or instruction is executed by the processor 81 to implement the above Figure 4 When the network function 80 is AMF, the program or instruction is executed by the processor 81 to implement the above Figure 5 The various processes of the method embodiment shown can achieve the same technical effect, and to avoid repetition, they will not be described here.

[0215] An embodiment of the present application also provides a readable storage medium, which can be volatile or non-volatile. The readable storage medium stores a program or instruction. When the program or instruction is executed by the processor, the various processes of the above-mentioned information control method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0216] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk.

[0217] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned information control method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0218] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0219] An embodiment of the present application further provides a computer program / program product, which is stored in a non-volatile storage medium. The program / program product is executed by at least one processor to implement the various processes of the above-mentioned information control method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0220] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0221] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or network-side device, etc.) to execute the methods described in each embodiment of the present application.

[0222] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. An information control method, characterized in that: include: The radio access network RAN ​​node sends interaction assistance information to the first core network function; Among them, the interactive auxiliary information is used to assist the first core network function to interact with the second core network function to exchange information related to multicast broadcast service management or multicast broadcast session management, or the interactive auxiliary information is used to assist the first core network function to refuse to interact with the second core network function to exchange information related to multicast broadcast service management or multicast broadcast session management.

2. The method according to claim 1, characterized in that The interactive auxiliary information satisfies at least one of the following: including information that needs to be sent to the second core network function; does not include information that needs to be sent to the second core network function; Including first indication information; wherein the first indication information is used to indicate the need to interact with the second core network function; or, the first indication information is used to indicate optional interaction with or non-interaction with the second core network function, or conditional interaction with or non-interaction with the second core network function; Including transmission type indication information; wherein, the transmission type indication information is used to indicate at least one of the following: the transmission type is unicast, the transmission type is multicast; including first shared channel information; The first shared channel information is not included.

3. The method according to claim 2, characterized in that The interactive auxiliary information satisfies at least one of the following: In a case where the interaction assistance information includes information that needs to be sent to the second core network function, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function; In a case where the interaction assistance information does not include information that needs to be sent to the second core network function, the interaction assistance information is used to indicate any one of the following: whether the first core network function optionally interacts with or does not interact with the second core network function, and whether the first core network function conditionally interacts with or does not interact with the second core network function; When the transmission type indication information included in the interaction assistance information indicates that the transmission type is unicast, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function; In the case where the transmission type indication information included in the interaction assistance information indicates that the transmission type is multicast, the interaction assistance information is used to indicate any one of the following: the first core network function optionally interacts with or does not interact with the second core network function, and the first core network function conditionally interacts with or does not interact with the second core network function.

4. The method according to claim 2, characterized in that The first shared channel information includes at least one of the following: Transmission address; Tunnel ID.

5. The method according to claim 4, characterized in that When the interaction assistance information includes first shared channel information, the interaction assistance information satisfies at least one of the following: When the first shared channel information includes a transmission address and the transmission address is a multicast address, the interaction assistance information is used to indicate any one of the following: whether the first core network function optionally interacts with or does not interact with the second core network function, and whether the first core network function conditionally interacts with or does not interact with the second core network function; When the first shared channel information includes a transmission address, and the transmission address is a unicast address or not a multicast address, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function; In a case where the first shared channel information includes a tunnel identifier, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function; When the first shared channel information does not include a tunnel identifier, the interaction assistance information is used to indicate any one of the following: the first core network function optionally interacts with or does not interact with the second core network function, and the first core network function conditionally interacts with or does not interact with the second core network function.

6. The method according to claim 4, characterized in that The first shared channel information further includes at least one of the following: Multicast broadcast service MBS session identifier; MBS QoS Flow information; MBS service area information; MBS zone session identifier.

7. The method according to claim 1, characterized in that The sending the interaction assistance information to the first core network function includes: The RAN node sends the interaction assistance information to the first core network function according to the second shared channel information.

8. The method according to claim 7, characterized in that The interactive auxiliary information satisfies at least one of the following: When the first condition is met, the interaction assistance information is used to indicate any one of the following: the first core network function optionally interacts with or does not interact with the second core network function, and the first core network function conditionally interacts with or does not interact with the second core network function; When the second condition is met, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function; The first condition includes at least one of the following: The second shared channel information includes a tunnel identifier; The second shared channel information includes a transmission address, and the transmission address is a multicast address; The second condition includes at least one of the following: The second shared channel information is unknown; The second shared channel information includes a transmission address, and the transmission address is a unicast address or is not a multicast address.

9. The method according to claim 1, characterized in that The sending the interaction assistance information to the first core network function includes: The RAN node sends the interaction assistance information to the first core network function by any one of the following: Shared channel establishment request, shared channel release request.

10. An information control method, characterized in that: include: The first core network function receives interaction assistance information from the RAN node; The first core network function exchanges information related to multicast broadcast service management or multicast broadcast session management with the second core network function based on the interactive auxiliary information, or refuses to exchange information related to multicast broadcast service management or multicast broadcast session management with the second core network function.

11. The method according to claim 10, characterized in that The interactive auxiliary information satisfies at least one of the following: including information that needs to be sent to the second core network function; does not include information that needs to be sent to the second core network function; Including first indication information; wherein the first indication information is used to indicate the need to interact with the second core network function; or, the first indication information is used to indicate optional interaction with or non-interaction with the second core network function, or conditional interaction with or non-interaction with the second core network function; Including transmission type indication information; wherein, the transmission type indication information is used to indicate at least one of the following: the transmission type is unicast, the transmission type is multicast; including first shared channel information; The first shared channel information is not included.

12. The method according to claim 11, characterized in that The interactive auxiliary information satisfies at least one of the following: In a case where the interaction assistance information includes information that needs to be sent to the second core network function, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function; In a case where the interaction assistance information does not include information that needs to be sent to the second core network function, the interaction assistance information is used to indicate any one of the following: whether the first core network function optionally interacts with or does not interact with the second core network function, and whether the first core network function conditionally interacts with or does not interact with the second core network function; When the transmission type indication information included in the interaction assistance information indicates that the transmission type is unicast, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function; In the case where the transmission type indication information included in the interaction assistance information indicates that the transmission type is multicast, the interaction assistance information is used to indicate any one of the following: the first core network function optionally interacts with or does not interact with the second core network function, and the first core network function conditionally interacts with or does not interact with the second core network function.

13. The method according to claim 11, characterized in that The first shared channel information includes at least one of the following: Transmission address; Tunnel ID.

14. The method according to claim 13, characterized in that When the interaction assistance information includes first shared channel information, the interaction assistance information satisfies at least one of the following: When the first shared channel information includes a transmission address and the transmission address is a multicast address, the interaction assistance information is used to indicate any one of the following: whether the first core network function optionally interacts with or does not interact with the second core network function, and whether the first core network function conditionally interacts with or does not interact with the second core network function; When the first shared channel information includes a transmission address, and the transmission address is a unicast address or not a multicast address, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function; In a case where the first shared channel information includes a tunnel identifier, the interaction assistance information is used to indicate that the first core network function needs to interact with the second core network function; When the first shared channel information does not include a tunnel identifier, the interaction assistance information is used to indicate any one of the following: the first core network function optionally interacts with or does not interact with the second core network function, and the first core network function conditionally interacts with or does not interact with the second core network function.

15. The method according to any one of claims 11 to 14, characterized in that When the interaction assistance information indicates that the first core network function optionally interacts with or does not interact with the second core network function, or indicates that the first core network function conditionally interacts with or does not interact with the second core network function, the method further includes at least one of the following: When the RAN node is the first RAN node or the last RAN node in serving a multicast broadcast service or a multicast broadcast session, the first core network function and the second core network function exchange information related to multicast broadcast service management or multicast broadcast session management; When the RAN node is not the first RAN node or the last RAN node serving the multicast broadcast service or multicast broadcast session, the first core network function refuses to exchange information related to multicast broadcast service management or multicast broadcast session management with the second core network function.

16. The method according to claim 11, characterized in that The interacting with the second core network function for information related to multicast broadcast service management or multicast broadcast session management based on the interaction auxiliary information, or refusing to interact with the second core network function for information related to multicast broadcast service management or multicast broadcast session management, includes at least one of the following: When the interaction auxiliary information satisfies at least one of the following items, the first core network function and the second core network function interact with each other, and the information related to multicast broadcast service management or multicast broadcast session management includes information that needs to be sent to the second core network function, includes first indication information indicating that the first core network function needs to interact with the second core network function, includes transmission type indication information indicating that the transmission type is unicast, and includes shared channel information; When the interactive auxiliary information satisfies at least one of the following items, the first core network function interacts with the second core network function on information related to multicast broadcast service management or multicast broadcast session management, or refuses to interact with the second core network function on information related to multicast broadcast service management or multicast broadcast session management: does not include information that needs to be sent to the second core network function, includes first indication information indicating optional interaction with or not with the second core network function, includes first indication information indicating conditional interaction with or not with the second core network function, includes transmission type indication information indicating that the transmission type is multicast, and does not include shared channel information.

17. The method according to claim 10, wherein: The method further comprises: The first core network function interacts with the second core network function for information related to multicast broadcast service management or multicast broadcast session management based on the uniqueness of the RAN node in serving multicast broadcast service management or multicast broadcast session, or refuses to interact with the second core network function for information related to multicast broadcast service management or multicast broadcast session management.

18. The method according to claim 17, characterized in that The exchanging, with the second core network function, information related to multicast broadcast service management or multicast broadcast session management based on the uniqueness of the RAN node when serving the multicast service or multicast session, or refusing to exchange, with the second core network function, information related to multicast broadcast service management or multicast broadcast session management, includes at least one of the following: When the RAN node is the first RAN node or the last RAN node when serving a multicast broadcast service, the first core network function and the second core network function exchange information related to multicast broadcast service management or multicast broadcast session management; When the RAN node is not the first RAN node or the last RAN node serving the multicast broadcast service, the first core network function refuses to exchange information related to multicast broadcast service management or multicast broadcast session management with the second core network function.

19. An information control device, characterized in that: include: A sending module, configured to send interaction auxiliary information to the first core network function; Among them, the interactive auxiliary information is used to assist the first core network function to interact with the second core network function to exchange information related to multicast broadcast service management or multicast broadcast session management, or the interactive auxiliary information is used to assist the first core network function to refuse to interact with the second core network function to exchange information related to multicast broadcast service management or multicast broadcast session management.

20. An information control device, characterized in that: include: A receiving module, configured to receive interaction assistance information from a RAN node; A processing module is used to interact with the second core network function for information related to multicast broadcast service management or multicast broadcast session management based on the interactive auxiliary information, or to refuse to interact with the second core network function for information related to multicast broadcast service management or multicast broadcast session management.

21. A network function, characterized in that The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the information control method according to any one of claims 1 to 9, or the steps of the information control method according to any one of claims 10 to 18.

22. A readable storage medium, characterized in that The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the information control method according to any one of claims 1 to 9, or the steps of the information control method according to any one of claims 10 to 18 are implemented.

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