Multicast service processing method, apparatus and network device

Abstract

The application discloses a multicast service processing method and device and network equipment, and belongs to the technical field of communication. The method of the application comprises the following steps: in the case of updating multicast area information, a first core network function sends first area information to a first terminal; wherein the position of the first terminal meets at least one of the following conditions: the position of the first terminal is located in an area corresponding to the first area information and is located outside an area corresponding to second area information; the position of the first terminal is located outside the area corresponding to the first area information and is located in the area corresponding to the second area information; wherein the second area information is multicast area information before multicast area updating.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a multicast service processing method, device and network equipment. Background Art

[0002] When the service area of ​​a Multicast Broadcast Service (MBS) or session is updated, all UEs participating in the multicast service or session will be notified of the updated area information in a very short time, resulting in a signaling storm. Summary of the Invention

[0003] The embodiments of the present application provide a multicast service processing method, apparatus, and network device, which can solve the problem of how to send a large amount of signaling in a very short time when the multicast service service area is updated.

[0004] In a first aspect, a multicast service processing method is provided, comprising:

[0005] In case of updating the multicast area information, the first core network function sends the first area information to the first terminal;

[0006] The location of the first terminal satisfies at least one of the following conditions:

[0007] The first terminal is located in the area corresponding to the first area information and outside the area corresponding to the second area information;

[0008] The first terminal is located outside the area corresponding to the first area information and is located in the area corresponding to the second area information;

[0009] The second area information is the multicast area information before the multicast area is updated.

[0010] In a second aspect, a multicast service processing device is provided, including:

[0011] A first transceiver module is configured to send the first area information to the first terminal when the multicast area information is updated;

[0012] The location of the first terminal satisfies at least one of the following conditions:

[0013] The first terminal is located in the area corresponding to the first area information and outside the area corresponding to the second area information;

[0014] The first terminal is located outside the area corresponding to the first area information and is located in the area corresponding to the second area information;

[0015] The second area information is the multicast area information before the multicast area is updated.

[0016] In a third aspect, a network device is provided, which includes 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 method described in the first aspect.

[0017] In a fourth aspect, a network device is provided, comprising a processor and a communication interface, wherein the communication interface is configured to send first area information to a first terminal when updating multicast area information;

[0018] The location of the first terminal satisfies at least one of the following conditions:

[0019] The first terminal is located in the area corresponding to the first area information and outside the area corresponding to the second area information;

[0020] The first terminal is located outside the area corresponding to the first area information and is located in the area corresponding to the second area information;

[0021] The second area information is the multicast area information before the multicast area is updated.

[0022] In a fifth 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.

[0023] In a sixth 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 configured to run a program or instruction to implement the method described in the first aspect.

[0024] In a seventh aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a non-volatile storage medium, and the computer program / program product is executed by at least one processor to implement the steps of the method described in the first aspect.

[0025] In an embodiment of the present application, when updating the multicast area information, the first core network function sends the first area information to the first terminal located in the area corresponding to the first area information and outside the area corresponding to the second area information; and / or, to the first terminal located outside the area corresponding to the first area information and in the area corresponding to the second area information, instead of sending the first area information to all terminals, thereby reducing signaling overhead and avoiding sending a large amount of signaling in a short period of time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A structural diagram showing a communication system to which the embodiments of the present application can be applied;

[0027] Figure 2 A schematic diagram showing a flow chart of a multicast service processing method according to an embodiment of the present application;

[0028] Figure 3 A schematic diagram showing a module of a multicast service processing device according to an embodiment of the present application;

[0029] Figure 4 A block diagram showing the structure of a communication device according to an embodiment of the present application;

[0030] Figure 5 A structural block diagram of a network device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0032] 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.

[0033] 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 descriptions. These technologies can also be applied to applications other than NR system applications, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0034] Figure 1The structure diagram of a wireless communication system applicable to the embodiments of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can also be called a terminal device or a user terminal (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. The network side device 12 can be a base station or a core network device, where the base station can be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting and receiving point (Transmitting Receiving Point, TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, and the specific type of the base station is not limited.

[0035] The multicast service processing method provided by the embodiment of the present application is described in detail below through some embodiments and application scenarios in conjunction with the accompanying drawings.

[0036] like Figure 2 As shown, the embodiment of the present application provides a multicast service processing method, including:

[0037] Step 201: When updating multicast area information, the first core network function sends first area information to the first terminal;

[0038] The first area information is area information related to multicast area update, and the location of the first terminal satisfies at least one of the following:

[0039] The first terminal is located in the area corresponding to the first area information and outside the area corresponding to the second area information;

[0040] The first terminal is located outside the area corresponding to the first area information and is located in the area corresponding to the second area information;

[0041] The second area information is the multicast area information before the multicast area is updated.

[0042] Optionally, the first area information may specifically be area information after the multicast area is updated.

[0043] In an embodiment of the present application, the above-mentioned first core network function may specifically be a session management function (Session Management Function, SMF).

[0044] In an embodiment of the present application, when updating the multicast area information, the first core network function sends the first area information to the first terminal located in the area corresponding to the first area information and outside the area corresponding to the second area information; and / or, to the first terminal located outside the area corresponding to the first area information and in the area corresponding to the second area information, instead of sending the first area information to all terminals, thereby reducing signaling overhead and avoiding sending a large amount of signaling in a short period of time.

[0045] Optionally, the first area information includes at least one of the following:

[0046] at least one cell identifier;

[0047] At least one tracking area identifier.

[0048] Optionally, the first core network function sending the first area information to the first terminal includes:

[0049] receiving first location information of the first terminal reported by a second core network function, where the first location information is location information of the first terminal after the multicast area is updated;

[0050] The first area information is sent to the first terminal according to the first location information and the second location information of the first terminal.

[0051] The second core network function is specifically an Access and Mobility Management Function (AMF).

[0052] Optionally, before the first core network function sends the first terminal the first area information, the method further includes:

[0053] sending the first area information to a second core network function, the first area information being used by the second core network function to report first location information of the first terminal to the first core network function.

[0054] Optionally, the first location information or the second location information includes at least one of:

[0055] a cell identifier;

[0056] tracking area (TA) information;

[0057] information indicating that the first terminal moves into a target area or information indicating that the first terminal is located in the target area, or information indicating that the first terminal moves out of the target area or information indicating that the first terminal is located outside the target area.

[0058] Optionally, the first core network function sends the first terminal the first area information according to the first location information and second location information of the first terminal, including at least one of:

[0059] sending the first terminal the first area information in a case where a location corresponding to the first location information is located in an area corresponding to the first area information and a location corresponding to the second location information is located outside an area corresponding to second area information.

[0060] sending the first terminal the first area information in a case where the location corresponding to the first location information is located outside the area corresponding to the first area information and the location corresponding to the second location information is located in the area corresponding to the second area information.

[0061] Further, the method of the embodiments of the present application further includes at least one of:

[0062] determining that a location corresponding to the first location information is located in an area corresponding to the first area information in a case where the first location information satisfies a first condition.

[0063] determining that the location corresponding to the first location information is located outside the area corresponding to the first area information in a case where the first location information satisfies a second condition.

[0064] If the second location information satisfies a third condition, determining that the location corresponding to the second location information is located in the area corresponding to the second area information;

[0065] If the second location information satisfies a fourth condition, determining that the location corresponding to the second location information is outside the area corresponding to the second area information;

[0066] The first condition includes at least one of the following:

[0067] The first position information includes information indicating movement into a target area or information indicating being located in a target area;

[0068] The cell identifier in the first location information is included in the first area information;

[0069] The tracking area in the first location information is included in the first area information;

[0070] The second condition includes at least one of the following:

[0071] The first location information includes information indicating moving out of the target area or information indicating not being located in the target area;

[0072] The cell identifier in the first location information is not included in the first area information;

[0073] The tracking area in the first location information is not included in the first area information.

[0074] The third condition includes at least one of the following:

[0075] The second position information includes information indicating movement into a target area or information indicating being located in a target area;

[0076] The cell identifier in the second location information is included in the second area information;

[0077] The tracking area in the second location information is included in the second area information;

[0078] The fourth condition includes at least one of the following:

[0079] The second position information includes information indicating that the target area has been moved out or information indicating that the target area is not located.

[0080] The cell identifier in the second location information is not included in the second area information;

[0081] The tracking area in the second location information is not included in the second area information.

[0082] Optionally, the second area information includes at least one of the following:

[0083] at least one cell identifier;

[0084] At least one tracking area identifier.

[0085] Optionally, the first core network function sending the first area information to the first terminal includes:

[0086] The first core network function sends the first area information to the first terminal by updating the PDU session of the first terminal.

[0087] In the embodiment of the present application, the location of the first terminal satisfies certain conditions. Thus, by sending the first area information to the first terminal whose location satisfies certain conditions, when updating the multicast area information, it is possible to avoid notifying all UEs to perform location updates in a short period of time, thereby avoiding signaling storms.

[0088] It should be noted that the multicast service processing method provided in the embodiments of the present application can be executed by a multicast service processing device, or by a control module in the multicast service processing device for executing the multicast service processing method. In the embodiments of the present application, the multicast service processing device provided in the embodiments of the present application is described by taking the multicast service processing device executing the multicast service processing method as an example.

[0089] like Figure 3 As shown, the embodiment of the present application further provides a multicast service processing device 300, including:

[0090] The first transceiver module 301 is configured to send the first area information to the first terminal when the multicast area information is updated;

[0091] The location of the first terminal satisfies at least one of the following conditions:

[0092] The first terminal is located in the area corresponding to the first area information and outside the area corresponding to the second area information;

[0093] The first terminal is located outside the area corresponding to the first area information and is located in the area corresponding to the second area information;

[0094] The second area information is the multicast area information before the multicast area is updated.

[0095] Optionally, the device of the embodiment of the present application further includes:

[0096] The first determining module is configured to determine the first area information when the multicast area information is updated.

[0097] Optionally, the first area information comprises at least one of:

[0098] at least one cell identifier;

[0099] at least one tracking area identifier.

[0100] Optionally, the first transceiver comprises:

[0101] a first receiving submodule, configured to receive first location information of the first terminal reported by the second core network function, the first location information being location information of the first terminal after multicast area update;

[0102] a first sending submodule, configured to send the first area information to the first terminal according to the first location information and second location information of the first terminal.

[0103] Optionally, the apparatus of the embodiment of the present application further comprises:

[0104] a second transceiver, configured to send the first area information to the second core network function before the first transceiver sends the first area information to the first terminal, the first area information being used for the second core network function to report the first location information of the first terminal to the first core network function.

[0105] Optionally, the first location information or the second location information comprises at least one of:

[0106] a cell identifier;

[0107] tracking area (TA) information;

[0108] information indicating that the first terminal moves into a target area or information indicating that the first terminal is located in the target area, or information indicating that the first terminal moves out of the target area or information indicating that the first terminal is located outside the target area.

[0109] Optionally, the first sending submodule is configured to perform at least one of:

[0110] send the first area information to the first terminal in a case where the location corresponding to the first location information is located in the area corresponding to the first area information and the location corresponding to the second location information is located outside the area corresponding to the second area information;

[0111] send the first area information to the first terminal in a case where the location corresponding to the first location information is located outside the area corresponding to the first area information and the location corresponding to the second location information is located in the area corresponding to the second area information.

[0112] Optionally, the apparatus of the embodiment of the present application further comprises:

[0113] The first determining module is configured to perform at least one of the following:

[0114] In a case where the first location information satisfies a first condition, it is determined that the location corresponding to the first location information is located in the region corresponding to the first region information.

[0115] In a case where the first location information satisfies a second condition, it is determined that the location corresponding to the first location information is located outside the region corresponding to the first region information.

[0116] In a case where the second location information satisfies a third condition, it is determined that the location corresponding to the second location information is located in the region corresponding to the second region information.

[0117] In a case where the second location information satisfies a fourth condition, it is determined that the location corresponding to the second location information is located outside the region corresponding to the second region information.

[0118] The first condition comprises at least one of the following:

[0119] The first location information contains information indicating moving into a target region or information indicating being located in a target region.

[0120] A cell identifier in the first location information is contained in the first region information.

[0121] A tracking area in the first location information is contained in the first region information.

[0122] The second condition comprises at least one of the following:

[0123] The first location information contains information indicating moving out of a target region or information indicating not being located in a target region.

[0124] A cell identifier in the first location information is not contained in the first region information.

[0125] A tracking area in the first location information is not contained in the first region information.

[0126] The third condition comprises at least one of the following:

[0127] The second location information contains information indicating moving into a target region or information indicating being located in a target region.

[0128] A cell identifier in the second location information is contained in the second region information.

[0129] A tracking area in the second location information is contained in the second region information.

[0130] The fourth condition includes at least one of the following:

[0131] The second position information includes information indicating that the target area has been moved out or information indicating that the target area is not located.

[0132] The cell identifier in the second location information is not included in the second area information;

[0133] The tracking area in the second location information is not included in the second area information.

[0134] Optionally, the second area information includes at least one of the following:

[0135] at least one cell identifier;

[0136] At least one tracking area identifier.

[0137] Optionally, the first transceiver module is used to send the first area information to the first terminal by updating a PDU session of the first terminal.

[0138] In the apparatus of the embodiment of the present application, when updating multicast area information, the first core network function sends the first area information to a first terminal located in an area corresponding to the first area information and outside an area corresponding to the second area information; and / or located outside an area corresponding to the first area information and within an area corresponding to the second area information, rather than sending the first area information to all terminals, thereby reducing signaling overhead and avoiding sending a large amount of signaling in a short period of time.

[0139] Optional, such as Figure 4 As shown, an embodiment of the present application also provides a communication device 400, including a processor 401, a memory 402, and a program or instruction stored in the memory 402 and executable on the processor 401. When the program or instruction is executed by the processor 401, the various processes of the above-mentioned multicast service processing method embodiment applied to the first core network function are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0140] An embodiment of the present application also provides a network device, which can be the above-mentioned first core network function. The network device includes a processor and a communication interface, and the communication interface is used to send first area information to the first terminal when updating the multicast area information; wherein, the first area information is area information related to the multicast area update, and the location information of the first terminal meets the preset conditions.

[0141] Specifically, the embodiment of the present application further provides a network device. Optionally, the network device is the first core network function mentioned above, such as Figure 5As shown, the network device 500 comprises: an antenna 501, a radio frequency device 502, and a baseband device 503. The antenna 501 is connected with the radio frequency device 502. In the uplink direction, the radio frequency device 502 receives information through the antenna 501, and sends the received information to the baseband device 503 for processing. In the downlink direction, the baseband device 503 processes the information to be sent, and sends the processed information to the radio frequency device 502, which processes the received information and sends it out through the antenna 501.

[0142] The above frequency band processing device can be located in the baseband device 503, and the method performed by the network device in the above embodiment can be implemented in the baseband device 503, which comprises a processor 504 and a memory 505.

[0143] The baseband device 503 can comprise at least one baseband board, for example, on which a plurality of chips are arranged, such as Figure 5 As shown, one of the chips is, for example, the processor 504, which is connected with the memory 505 to call the program in the memory 505 and perform the operation of the first core network function shown in the above method embodiment.

[0144] The baseband device 503 can further comprise a network interface 506 for interacting information with the radio frequency device 502, which is, for example, a common public radio interface (CPRI).

[0145] Specifically, the network device (first core network function) of the embodiment of the present application further comprises: instructions or programs stored in the memory 505 and executable on the processor 504, and the processor 504 calls the instructions or programs in the memory 505 to perform the method executed by the modules shown in the above embodiment and achieve the same technical effects, so as not to repeat here. Figure 3 As shown, the modules perform the method and achieve the same technical effects, so as not to repeat here.

[0146] The embodiment of the present application further provides a readable storage medium, which can be volatile or non-volatile, and the readable storage medium stores programs or instructions, which are executed by the processor to implement the processes of the above multicast service processing method embodiments and achieve the same technical effects, so as not to repeat here.

[0147] The processor is the processor in the terminal in the above embodiment. The readable storage medium comprises a computer readable storage medium, such as a computer readable memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0148] 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 multicast service processing embodiment and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0149] 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.

[0150] An embodiment of the present application also provides a computer program / program product, which is stored in a non-volatile storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned multicast service processing method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0151] 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.

[0152] 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 is essentially 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), including a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0153] 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. A multicast service processing method, characterized in that: include: In case of updating the multicast area information, the first core network function sends the first area information to the first terminal; The location of the first terminal satisfies at least one of the following conditions: The first terminal is located in the area corresponding to the first area information and outside the area corresponding to the second area information; The first terminal is located outside the area corresponding to the first area information and is located in the area corresponding to the second area information; The second area information is the multicast area information before the multicast area is updated.

2. The method according to claim 1, characterized in that The first area information includes at least one of the following: at least one cell identifier; At least one tracking area identifier.

3. The method according to claim 1, characterized in that The first core network function sends the first area information to the first terminal, including: receiving first location information of the first terminal reported by a second core network function, where the first location information is location information of the first terminal after the multicast area is updated; The first area information is sent to the first terminal according to the first location information and the second location information of the first terminal.

4. The method according to claim 3, characterized in that Before the first core network function sends the first area information to the first terminal, the method further includes: The first area information is sent to a second core network function, where the first area information is used by the second core network function to report the first location information of the first terminal to the first core network function.

5. The method according to claim 3, characterized in that The first location information or the second location information includes at least one of the following: cell identification; Tracking area TA information; Information indicating movement into the target area or information indicating being located in the target area, or information indicating movement out of the target area or information indicating being located outside the target area.

6. The method according to claim 3, characterized in that The sending the first area information to the first terminal according to the first location information and the second location information of the first terminal includes at least one of the following: When the position corresponding to the first position information is within the area corresponding to the first area information, and the position corresponding to the second position information is outside the area corresponding to the second area information, sending the first area information to the first terminal; When the position corresponding to the first position information is outside the area corresponding to the first area information and the position corresponding to the second position information is within the area corresponding to the second area information, the first area information is sent to the first terminal.

7. The method according to claim 6, characterized in that The method further comprises at least one of the following: If the first location information satisfies a first condition, determining that the location corresponding to the first location information is located in the area corresponding to the first area information; If the first location information satisfies a second condition, determining that the location corresponding to the first location information is outside the area corresponding to the first area information; If the second location information satisfies a third condition, determining that the location corresponding to the second location information is located in the area corresponding to the second area information; If the second location information satisfies a fourth condition, determining that the location corresponding to the second location information is outside the area corresponding to the second area information; The first condition includes at least one of the following: The first position information includes information indicating movement into a target area or information indicating being located in a target area; The cell identifier in the first location information is included in the first area information; The tracking area in the first location information is included in the first area information; The second condition includes at least one of the following: The first location information includes information indicating moving out of the target area or information indicating not being located in the target area; The cell identifier in the first location information is not included in the first area information; The tracking area in the first location information is not included in the first area information; The third condition includes at least one of the following: The second position information includes information indicating movement into a target area or information indicating being located in a target area; The cell identifier in the second location information is included in the second area information; The tracking area in the second location information is included in the second area information; The fourth condition includes at least one of the following: The second position information includes information indicating that the target area has been moved out or information indicating that the target area is not located. The cell identifier in the second location information is not included in the second area information; The tracking area in the second location information is not included in the second area information.

8. The method according to claim 6, characterized in that The second area information includes at least one of the following: at least one cell identifier; At least one tracking area identifier.

9. The method according to claim 1, characterized in that The first core network function sending the first area information to the first terminal includes: The first core network function sends the first area information to the first terminal by updating the PDU session of the first terminal.

10. A multicast service processing device, characterized in that: include: A first transceiver module is configured to send the first area information to the first terminal when the multicast area information is updated; The location of the first terminal satisfies at least one of the following conditions: The first terminal is located in the area corresponding to the first area information and outside the area corresponding to the second area information; The first terminal is located outside the area corresponding to the first area information and is located in the area corresponding to the second area information; The second area information is the multicast area information before the multicast area is updated.

11. The device according to claim 10, characterized in that The first area information includes at least one of the following: at least one cell identifier; At least one tracking area identifier.

12. The device according to claim 10, characterized in that The first transceiver module includes: A first receiving submodule, configured to receive first location information of the first terminal reported by a second core network function, where the first location information is location information of the first terminal after the multicast area is updated; The first sending submodule is configured to send the first area information to the first terminal according to the first location information and the second location information of the first terminal.

13. The device according to claim 12, characterized in that Also includes: The second transceiver module is used to send the first area information to the second core network function before the first transceiver module sends the first area information to the first terminal. The first area information is used by the second core network function to report the first location information of the first terminal to the first core network function.

14. The device according to claim 12, characterized in that The first location information or the second location information includes at least one of the following: cell identification; Tracking area TA information; Information indicating movement into the target area or information indicating being located in the target area, or information indicating movement out of the target area or information indicating being located outside the target area.

15. The device according to claim 12, characterized in that The first sending submodule is configured to perform at least one of the following: When the position corresponding to the first position information is within the area corresponding to the first area information, and the position corresponding to the second position information is outside the area corresponding to the second area information, sending the first area information to the first terminal; When the position corresponding to the first position information is outside the area corresponding to the first area information and the position corresponding to the second position information is within the area corresponding to the second area information, the first area information is sent to the first terminal.

16. The device according to claim 15, characterized in that Also includes: The first determining module is configured to perform at least one of the following: If the first location information satisfies a first condition, determining that the location corresponding to the first location information is located in the area corresponding to the first area information; If the first location information satisfies a second condition, determining that the location corresponding to the first location information is outside the area corresponding to the first area information; If the second location information satisfies a third condition, determining that the location corresponding to the second location information is located in the area corresponding to the second area information; If the second location information satisfies a fourth condition, determining that the location corresponding to the second location information is outside the area corresponding to the second area information; The first condition includes at least one of the following: The first position information includes information indicating movement into a target area or information indicating being located in a target area; The cell identifier in the first location information is included in the first area information; The tracking area in the first location information is included in the first area information; The second condition includes at least one of the following: The first location information includes information indicating moving out of the target area or information indicating not being located in the target area; The cell identifier in the first location information is not included in the first area information; The tracking area in the first location information is not included in the first area information; The third condition includes at least one of the following: The second position information includes information indicating movement into a target area or information indicating being located in a target area; The cell identifier in the second location information is included in the second area information; The tracking area in the second location information is included in the second area information; The fourth condition includes at least one of the following: The second position information includes information indicating that the target area has been moved out or information indicating that the target area is not located. The cell identifier in the second location information is not included in the second area information; The tracking area in the second location information is not included in the second area information.

17. The device according to claim 15, characterized in that The second area information includes at least one of the following: at least one cell identifier; At least one tracking area identifier.

18. The device according to claim 10, characterized in that The first transceiver module is configured to send the first area information to the first terminal by updating a PDU session of the first terminal.

19. A network device, 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 multicast service processing method according to any one of claims 1 to 9.

20. 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 a processor, the steps of the multicast service processing method according to any one of claims 1 to 9 are implemented.

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