MII (Media Independent Interface) reporting method, MII receiving method, equipment and medium

Abstract

The invention discloses an MII (Media Independent Interface) reporting method, an MII receiving method, equipment and a medium. The MII reporting method is executed by the user equipment, and the method comprises the following steps: when the user equipment enters or leaves a service area corresponding to an MBS broadcast service, supporting to trigger an MBS interest indication MII reporting process. According to the technical scheme, under the scene that the user equipment enters or leaves the service area corresponding to the MBS broadcast service, the reporting process of the MII can be triggered, it can be ensured that the user equipment can report the MII in time in the moving process, a network device can know the latest MBS broadcast service which is being received by the user equipment or is interested in receiving in time, and the user equipment can conveniently and rapidly report the MBS broadcast service. And the reliability of the MBS broadcast service is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communication technology, and in particular to a MII reporting, MII receiving method, device and medium. Background Art

[0002] Although 5G has begun commercial use, it is limited by geographical conditions and business models and cannot guarantee network coverage in remote areas of the ocean and land. In order to break through the terrain restrictions, integrating satellite communications with ground networks to form a global seamless three-dimensional network of land, sea, air, and space has become a research hotspot in the current academic and industrial circles. International organizations such as 3GPP and ITU have also established corresponding working groups to conduct standardization research on satellite-ground integration. Among them, the non-terrestrial networks (NTN) established by 3GPP is committed to integrating satellite communications with 5G and solving the key problem of New Radio (NR) supporting NTN. Its standardization work will lay a technical foundation for 6G satellite-ground integration research. The future integrated network of air, space, and ground will focus on deep integration, combining multiple communication platforms to provide more extensive and diversified communication services.

[0003] User Equipment (UE) can report MBS Interest Indication (MII) to network equipment (such as base stations) to inform the network that the UE is receiving or interested in receiving relevant information about MBS broadcast services, so that the network side can reasonably schedule network resources for MBS broadcast services. MII can only be reported after the access layer (AS) is securely activated.

[0004] However, in the existing technical research, since the access network equipment in the non-terrestrial network, such as the non-geostationary orbit (NGSO) satellite and low earth orbit (LEO) satellite in the satellite, has a very large coverage area, which can reach hundreds of square kilometers, but different areas within the coverage area may need to transmit different services. During the movement of the UE, the MBS broadcast service that the UE is receiving or interested in receiving may change at any time. Since the UE cannot report the MII in time, the network equipment cannot timely know the MBS broadcast service that the UE is receiving or interested in receiving, so it cannot timely and reasonably schedule network resources, which may result in insufficient network resources for the MBS broadcast service that the UE is receiving or interested in receiving, and then cause the MBS broadcast service to be lost, interrupted or failed to receive; it may also be due to the reservation of too many or unnecessary network resources for the MBS broadcast service, resulting in resource waste, and also affecting the reception of other types of services. The reliability of the MBS broadcast service needs to be improved. Summary of the invention

[0005] In order to solve the above-mentioned problem that MII cannot be reported in time, the present application provides a MII reporting and MII receiving method, device and medium.

[0006] The present application embodiment provides a MII reporting method, which is performed by a user equipment, and includes:

[0007] When the user equipment enters or leaves the service area corresponding to the MBS broadcast service, it supports triggering the MBS interest indication MII reporting process.

[0008] The present application embodiment provides a MII receiving method, including:

[0009] Receive the MBS interest indication MII reported by the user equipment;

[0010] The scenarios supporting the user equipment triggering the MII reporting process include: the user equipment entering or leaving the service area corresponding to the MBS broadcast service.

[0011] The embodiment of the present application provides a MII reporting device, including:

[0012] The trigger module is used to support triggering the MBS interest indication MII reporting process when the user equipment enters or leaves the service area corresponding to the MBS broadcast service.

[0013] The embodiment of the present application provides a MII reporting device, including:

[0014] A receiving module, configured to receive an MBS interest indication MII reported by a user equipment;

[0015] The scenarios supporting the user equipment triggering the MII reporting process include: the user equipment entering or leaving the service area corresponding to the MBS broadcast service.

[0016] An embodiment of the present application provides a network device, including:

[0017] one or more processors;

[0018] A storage device for storing one or more programs;

[0019] When the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned MII reporting method.

[0020] An embodiment of the present application provides a user equipment, including:

[0021] one or more processors;

[0022] A storage device for storing one or more programs;

[0023] When the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned MII reporting method.

[0024] The embodiment of the present application further provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the above-mentioned MII reporting method is implemented.

[0025] The embodiment of the present application provides a MII reporting and MII receiving method, device and medium. The MII reporting method is executed by a user device, and the method includes: when the user device enters or leaves the service area corresponding to the MBS broadcast service, supporting triggering the MBS interest indication MII reporting process. The above technical solution can trigger the MII reporting process in the scenario where the user device enters or leaves the service area corresponding to the MBS broadcast service, which can ensure that the user device can report the MII in time during the movement process, so that the network device can timely know the latest MBS broadcast service that the user device is receiving or interested in receiving, thereby improving the reliability of the MBS broadcast service. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The features, advantages and aspects of the embodiments disclosed in the present application will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the accompanying drawings are schematic and the originals and elements are not necessarily drawn to scale.

[0027] Figure 1 A flowchart of a MII reporting method provided in an embodiment of the present application;

[0028] Figure 2 A schematic diagram of the relationship between a service area and an NTN cell of an MBS broadcast service provided in an embodiment of the present application;

[0029] Figure 3 A flowchart of a MII receiving method provided in an embodiment of the present application;

[0030] Figure 4 A schematic diagram of the structure of a MII reporting device provided in an embodiment of the present application;

[0031] Figure 5 A schematic diagram of the structure of a MII receiving device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only the parts related to the present application, rather than all structures, are shown in the accompanying drawings.

[0033] It should be mentioned before discussing the exemplary embodiments in more detail that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow charts describe the steps as sequential processes, many of the steps therein can be implemented in parallel, concurrently or simultaneously. In addition, the order of the steps can be rearranged. The process can be terminated when its operation is completed, but can also have additional steps not included in the accompanying drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0034] In addition, the embodiments in the present application and the features in the embodiments may be combined with each other if there is no conflict.

[0035] In the prior art, the coverage of access network equipment in non-terrestrial networks is very large, but different areas within the coverage may require different services to be transmitted. During the movement of the UE, the MBS broadcast service that the UE is receiving or interested in receiving may change at any time. Since the UE cannot report the MII in time, the network equipment cannot timely learn the MBS broadcast service that the UE is receiving or interested in receiving, and therefore cannot timely and reasonably schedule or optimize network resources according to the latest MII information, which may result in insufficient network resources for the MBS broadcast service that the UE is receiving or interested in receiving, and then cause packet loss, interruption or reception failure of the MBS broadcast service; it may also be due to excessive or unnecessary network resources reserved for the MBS broadcast service, resulting in resource waste, which also affects the reception of other types of services and the reliability of the MBS broadcast service. The service quality of the MBS broadcast service needs to be improved.

[0036] An exemplary application scenario is: when a UE enters an MBS broadcast service (such as MBS 1 ) service area, the MBS broadcast service being received or interested in receiving is other MBS broadcast services (such as MBS 2 ), before entering MBS 1 When the MBS broadcast service being received or interested in receiving is in the service area, it becomes MBS 1 However, since the UE does not report the MII to the network device in time, the network device still thinks that the MBS broadcast service that the UE is receiving or interested in receiving is MBS 2 , so there is no MBS 1 Allocate sufficient network resources, resulting in MBS 1 Packet loss, terminal or reception failure, etc.

[0037] Another exemplary application scenario is: UE is in an MBS broadcast service (such as MBS 3 ) service area, the MBS broadcast service being received or interested in receiving is MBS 3 , before leaving MBS 3 When the MBS broadcast service being received or receiving with interest changes to another MBS broadcast service (such as MBS 4 ), MBS 3 It is no longer the MBS broadcast service that the UE is receiving or interested in receiving. However, since the UE does not report the MII to the network device in time, the network device still thinks that the MBS broadcast service that the UE is receiving or interested in receiving is MBS 3 , so there is no MBS 4 Allocate sufficient network resources, resulting in MBS 4 Packet loss, terminal or reception failure, etc.

[0038] The present application provides an MII reporting method and an MII receiving method. For MBS broadcast services, when a network device enters or leaves a service area corresponding to the MBS broadcast service, the network device can report the MII to the network device, which can ensure that the user device can report the MII in a timely manner during movement, so that the network device can timely learn the MBS broadcast service that the user device is receiving or interested in receiving based on the latest MII, thereby reasonably scheduling or optimizing network resources for the MBS broadcast service, thereby improving the reliability and service quality of the MBS broadcast service.

[0039] The user equipment (UE) in the embodiments of the present application may be referred to as a terminal, which may be a mobile terminal, a vehicle-mounted terminal, etc. Among them, UE includes all devices that provide voice and / or data connectivity to users, such as wireless terminal devices, mobile terminal devices, device-to-device communication (D2D) terminal devices, vehicle-to-everything (V2X) terminal devices, machine-to-machine / machine-type communications (M2M / MTC) terminal devices, Internet of Things (IoT) terminal devices, light terminal devices (Light UE), reduced capability UE (REDCAP UE), subscriber unit (Subscriber Unit), subscriber station (Subscriber Station), mobile station (Mobile Station), remote station (Remote Station), access point (Access Point, AP), remote terminal (Remote Terminal), access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), or user equipment (User Device), etc. It can also be a user device in a future communication system, which is not limited by this patent.

[0040] The network equipment in the embodiments of the present application may be an access network device, a core network device or a server, etc. The access network device may be a base station in a terrestrial communication network, or a base station in an NTN network. For example, an evolved base station eNB, a next-generation node gNB in ​​an NR system, a road side unit (RSU), or a centralized unit CU and a distributed unit DU in a cloud access network system, or an access network device in a future communication system. The core network device may be a mobility management entity (MME), a serving gateway (SGW), a packet data node gateway (PGW), a home subscriber server (HSS) storing user subscription information, a policy control unit (PCRF), etc., and may also be a core network device in a future communication system, which is not limited by the present application.

[0041] Figure 1 A flowchart of a MII reporting method provided in an embodiment of the present application. This embodiment is applicable to the case of triggering MII reporting. Specifically, the MII reporting method can be executed by a MII reporting device, which can be implemented by software and / or hardware and integrated in a network device.

[0042] like Figure 1 As shown, the sending method provided in the embodiment of the present application may include the following steps:

[0043] S110: When the user equipment enters or leaves the service area corresponding to the MBS broadcast service, it supports triggering the MBS interest indication MII reporting process.

[0044] In this embodiment, the MBS interest indication may be used to indicate relevant information of the MBS broadcast service that the UE is receiving or interested in receiving. The conditions or scenarios for triggering the MBS interest indication MII reporting process include: the UE enters or leaves the service area corresponding to the MBS broadcast service.

[0045] It should be noted that the MBS broadcast service here can be one MBS broadcast service or multiple MBS broadcast services. Further, the multiple MBS broadcast services here include two or more MBS broadcast services. Further, the MBS broadcast service can be all MBS broadcast services, including all MBS broadcast services of interest to the UE, including all MBS broadcast services that the UE is receiving or about to receive, including all MBS broadcast services in the MBS interest list. Further, the MBS broadcast service can be one MBS broadcast service among all MBS broadcast services, or multiple MBS broadcast services among all MBS broadcast services.

[0046] It should be noted that the service area corresponding to the MBS broadcast service here can be one service area or multiple service areas. The service area may include an area that can be covered by a sending device under an NTN network connection, or an area in an NTN cell that can be covered by a sending device under an NTN network connection. The service area in an NTN cell may be one or multiple. In one embodiment, the UE enters or leaves one or more service areas corresponding to an MBS broadcast service, supporting the triggering of the MBS interest indication MII reporting process.

[0047] In an embodiment, when a UE enters or leaves one or more service areas corresponding to an MBS broadcast service, an MBS interest indication MII reporting process may be triggered.

[0048] It should be noted that when the UE enters or leaves the service area corresponding to the MBS broadcast service, it supports triggering MII reporting. Whether to trigger MII reporting can be determined comprehensively according to the actual situation. In other words, when the UE enters or leaves the service area corresponding to the MBS broadcast service, MII reporting can be triggered or not.

[0049] For example, the UE can determine whether to trigger the MII reporting process based on whether the current MII is different from the MII reported before entering or leaving the service area corresponding to the MBS broadcast service, whether the current resource allocation of the MBS broadcast service is reasonable, and / or the priority and / or service type of the MBS broadcast service.

[0050] Exemplarily, if the current MII is the same as the MII reported before entering or leaving the service area corresponding to the MBS broadcast service, the MII may not be reported; if the current MII is different from the MII reported before entering or leaving the service area corresponding to the MBS broadcast service, the MII may be reported;

[0051] If the current resource allocation of the MBS broadcast service is reasonable, for example, the priority of the MBS broadcast service indicated in the MII is higher than the priority of other services, or the MBS broadcast service that the UE is receiving or interested in receiving has sufficient resources, and the resource allocation may not need to be adjusted or optimized, then the MII may not be reported; if the current resource allocation of the MBS broadcast service is not reasonable, for example, the priority of the MBS broadcast service indicated in the MII is higher than the priority of other services, and the MBS broadcast service that the UE is receiving or interested in receiving has insufficient resources, indicating that the resource allocation may need to be adjusted or optimized, then the MII may be reported;

[0052] If the priority of the MBS broadcast service being received or being received with interest indicated in the MII is higher and / or the service type is more important, and relatively speaking, whether sufficient resources are provided for the MBS broadcast service has a greater impact on the service quality of the MBS broadcast service, then the MII may be reported to ensure that the network device can provide sufficient resources for the MBS broadcast service; if the priority of the MBS broadcast service being received or being received with interest indicated in the MII is lower and / or the service type is unimportant, and relatively speaking, whether sufficient resources are provided for the MBS broadcast service has a smaller impact on the service quality of the MBS broadcast service, then the MII may not be reported.

[0053] In an exemplary application scenario: When a UE enters an MBS broadcast service (such as MBS 1 ) service area, the MBS broadcast service being received or interested in receiving is other MBS broadcast services (such as MBS 2 ), before entering MBS 1 When the MBS broadcast service being received or interested in receiving is in the service area, it becomes MBS 1 In this case, the MII reporting process can be triggered to report the MII to the network device in time, and the network device can promptly know that the MBS broadcast service that the UE is receiving or interested in receiving is MBS 2 , and then for MBS 1 Allocate sufficient network resources to avoid MBS 1 Packet loss, terminal or reception failure, etc.

[0054] In another exemplary application scenario: a UE is in an MBS broadcast service (such as MBS 3 ) service area, the MBS broadcast service being received or interested in receiving is MBS 3 , before leaving MBS 3 When the MBS broadcast service being received or receiving with interest changes to another MBS broadcast service (such as MBS 4 ), MBS3 It is no longer the MBS broadcast service that the UE is receiving or interested in receiving. In this case, the MII reporting process can be triggered to report the MII to the network device in time, and the network device can promptly know that the MBS broadcast service that the UE is receiving or interested in receiving is MBS 4 , and then for MBS 4 Allocate sufficient network resources to avoid MBS 4 Packet loss, terminal or reception failure, etc.

[0055] The MII process triggering method of the embodiment of the present application, by taking the UE entering or leaving the service area corresponding to the MBS broadcast service as a scenario that can trigger the MBS interest indication MII reporting process, can ensure that the user equipment reports the MII in a timely manner during the movement, so that the network equipment can promptly know the latest MBS broadcast service that the user equipment is receiving or interested in receiving, and then reasonably adjust or optimize network resources, thereby improving the reliability and service quality of the MBS broadcast service.

[0056] In one embodiment, the user equipment may be in an RRC connected (RRC_CONNECTED) state.

[0057] In other words, for a user equipment in the RRC_CONNECTED state, the scenarios that may trigger the MII process include: the user equipment enters or leaves the service area corresponding to the MBS broadcast service.

[0058] Accordingly, by reporting the MII, the network can be informed that the UE in the RRC_CONNECTED state is receiving or interested in receiving the MBS broadcast service. The network can also be informed of the priority of the radio bearer so that it can adjust the transmission resources.

[0059] It should be noted that, in some embodiments, it is not excluded that a UE in an RRC idle (RRC_IDLE) state or an RRC inactive (RRC_INACTIVE) state also supports triggering the MII reporting process when entering or leaving the service area corresponding to the MBS broadcast service.

[0060] In one embodiment, the user equipment has MBS capability.

[0061] In other words, for a user equipment with MBS capability, the scenarios that may trigger the MII process include: the user equipment enters or leaves the service area corresponding to the MBS broadcast service.

[0062] It should be noted that the user equipment has MBS capability, that is, the user equipment can receive MBS services, which also include MBS broadcast services and / or MBS multicast services. Furthermore, the user equipment can also receive unicast services at the same time.

[0063] Accordingly, the network device can timely learn the MII of the UE that can receive the MBS broadcast service, and accordingly adjust or optimize network resources for receiving the MBS broadcast service. In one embodiment, the method further includes:

[0064] When the user equipment enters or leaves the service area corresponding to the MBS broadcast service, the MII is generated according to the current situation.

[0065] The current situation may be understood as information related to the UE receiving the MBS broadcast service when the UE enters or leaves the service area corresponding to the MBS broadcast service.

[0066] For example, the MBS frequency where the MBS broadcast service that the UE is receiving or interested in is located; another example, the information of the MBS broadcast service in the serving cell that the UE enters or leaves; another example, the information of the non-serving cell, where the serving cell may refer to the cell where the UE is currently located (the service area to which the UE enters or leaves belongs), and the non-serving cell may be other cells except the serving cell, such as the neighboring cell of the serving cell, the cell where the UE is located before entering the serving cell, and / or the cell where the UE is located after leaving the serving cell, etc.; another example, the information of the MBS broadcast service in the non-serving cell; another example, the relationship between the priority of the MBS broadcast service and the priority of other services (such as unicast service and / or MBS multicast service), etc. On this basis, it can be ensured that the UE reports the MII in time during the movement process, and the MII is generated according to the latest current situation, so that the network equipment can make correct and reliable decisions in time, and further improve the service quality of the MBS broadcast service.

[0067] In one embodiment, the MII includes at least one of the following:

[0068] MBS frequency list (which may be referred to as mbs-FreqList), where the MBS frequency list is used to indicate the MBS frequencies of the MBS broadcast services that the UE is currently receiving or is interested in;

[0069] MBS non-serving cell information list (which may be referred to as mbs-NonServingInfoList), where the MBS non-serving information list is used to indicate information on receiving MBS broadcast services in non-serving cells, where the non-serving cell may be a cell other than the serving cell where the UE is located, for example, a neighboring cell of the serving cell where the UE is located, etc. Based on the information on receiving MBS broadcast services in the non-serving cell, a basis may be provided for cell switching in the subsequent process of receiving MBS broadcast services;

[0070] Priority information (which may be referred to as mbs-Priority), the priority information is used to indicate the relationship between the priority of the MBS broadcast service and the priority of other services, that is, whether the UE places the priority of receiving the MBS broadcast service above the priority of receiving the unicast service and the MBS multicast service, and the other services include the unicast service and the MBS multicast service. For example, the priority information may indicate whether the priority of the MBS broadcast service is higher than the unicast service and the MBS multicast service;

[0071] The service list (which may be called mbs-ServiceList) is used to indicate the MBS broadcast services that the UE is receiving or interested in. It may include the MBS broadcast services that the UE is receiving or interested in in the current serving cell, and may also include the MBS broadcast services that the UE is receiving or interested in in the serving cell it enters or leaves.

[0072] Optionally, the priority information may indicate the relationship between the priority of the MBS broadcast service and the priority of other services in any of the following ways:

[0073] Method 1:

[0074] If the MII includes priority information, that is, the mbs-Priority field exists in the MII, it is used to indicate that the priority of the MBS broadcast service is higher than that of the unicast and MBS multicast services.

[0075] If the MII does not include priority information, that is, the mbs-Priority field does not exist in the MII, it is used to indicate that the priority of the MBS broadcast service is not higher than that of the unicast and MBS multicast services;

[0076] If the MII includes priority information to indicate that the priority of the MBS broadcast service is higher than that of the unicast and MBS multicast services, the value of the priority information may be true.

[0077] Method 2:

[0078] The MII includes priority information. If the value in the priority information is a first designated value true, or a first non-designated value (such as a value of 1 or 0 or other values), it means that the priority of the MBS broadcast service is higher than that of the unicast and MBS multicast services.

[0079] The MII includes priority information. If the value in the priority information is the second specified value false, or the second non-specified value (such as a value of 0 or 1), it means that the priority of the MBS broadcast service is not higher than that of the unicast and MBS multicast services.

[0080] Exemplarily, the data structure of MII is as follows:

[0081]

[0082] Among them, mbsInterestIndication is used to indicate MII, mbs-FreqList-r17 is used to indicate MBS frequency list, mbs-Priority is used to indicate priority information, mbs-ServiceList is used to indicate service list, and mbs-NonServingInfoList is used to indicate MBS non-serving cell information list. It should be noted that the above data structure is an exemplary description, and this embodiment does not specifically limit the naming and format of each information.

[0083] Optionally, the priority information may be associated with an MBS broadcast service. With respect to the priority information, the UE may also report a specific MBS broadcast service, such as reporting an MBS service identifier of the MBS broadcast service, so that the network device may learn the priority information of the specific MBS broadcast service. For example, the priority information indicates that the priority of the MBS broadcast service is higher than that of the unicast and MBS multicast services. The MBS service identifier reported by the UE corresponds to the MBS 1 , MBS 3 , MBS 4 Three MBS broadcast services, then MBS 1 , MBS 3 , MBS 4 The priority of MBS broadcast services is higher than that of unicast and MBS multicast services. 2 ), whose priority is not higher than unicast and MBS multicast services, that is, there is a higher priority than MBS 2 Unicast or MBS multicast services.

[0084] In one embodiment, the radio bearer of the MBS broadcast service is adjusted according to the MII.

[0085] Exemplarily, according to MII, the radio bearer can be adjusted for the MBS broadcast service that the UE is receiving or interested in. For example, for the MBS broadcast service that the UE is receiving or interested in, some radio bearers can be released or reserved for it; for another example, for the MBS broadcast service that the UE is receiving or interested in and has a higher priority than the unicast and MBS multicast services, some radio bearers can be released or reserved for it, and for the MBS broadcast service that the UE is receiving or interested in and has a priority not higher than the unicast and MBS multicast services, the radio bearer may not be released or reserved for it, or its corresponding radio bearer may be released, etc. On this basis, it can be guaranteed that appropriate radio bearers are provided for the MBS broadcast service, and network resources are fully utilized.

[0086] In one embodiment, the radio bearer of the MBS broadcast service satisfies at least one of the following:

[0087] If the MII includes priority information, and / or the priority information indicates that the priority of the MBS broadcast service is higher than the priority of other services, one or more radio bearers are released or suspended;

[0088] If the MII does not include priority information, and / or the priority information indicates that the priority of the MBS broadcast service is not higher than the priority of other services, then the radio bearer does not exist or is suspended;

[0089] If the MII does not include priority information, and / or the priority information indicates that the priority of the MBS broadcast service is not higher than the priority of other services, one or more radio bearers previously released or suspended are restored or reestablished or reactivated;

[0090] The other services include unicast services and / or multicast services and / or broadcast services.

[0091] Specifically, whether the priority information is included in the MII to indicate the relationship between the priority of the MBS broadcast service and the priority of other services:

[0092] If the MII contains priority information, it means that the priority of the MBS broadcast service is higher than that of the unicast service and the MBS multicast service; accordingly, the radio bearer can be adjusted accordingly, such as releasing, suspending, reestablishing, resuming or activating;

[0093] If the MII does not include priority information, it means that the priority of the MBS broadcast service is not higher than that of the unicast service and the MBS multicast service; accordingly, the radio bearer can be adjusted accordingly, such as not releasing or suspending or reestablishing or resuming or activating.

[0094] The method of indicating whether the priority of the MBS broadcast service is higher than the priority of other services by taking the value of the priority information in the MII is as follows:

[0095] If the priority information in the MII takes the first specified value true or the first non-specified value, it indicates that the priority of the MBS broadcast service is higher than that of the unicast service and the MBS multicast service; accordingly, the radio bearer may be adjusted accordingly, such as released, suspended, reestablished, restored, or activated;

[0096] If the priority information in the MII takes the second specified value false or the second unspecified value, it means that the priority of the MBS broadcast service is not higher than that of the unicast service and the MBS multicast service; accordingly, the wireless bearer can be adjusted accordingly, such as not releasing or suspending or reestablishing or resuming or activating.

[0097] It should be noted that the priority of the MBS broadcast service here is higher than the unicast service and the MBS multicast service. It can be that the MBS broadcast service associated with the MII is higher than the unicast service and the MBS multicast service, or one or more MBS broadcast services that the UE is receiving or interested in are higher than the unicast service and the MBS multicast service, or other MBS broadcast services.

[0098] Here, the priority of the MBS broadcast service is higher than that of the unicast service and the MBS multicast service. The priority of the MBS broadcast service may be higher than that of the unicast service, or the priority of the MBS broadcast service may be higher than that of the MBS multicast service, or the priority of the MBS broadcast service may be higher than that of the unicast service and the MBS multicast service.

[0099] Here, the priority of the MBS broadcast service is higher than that of the unicast service and the MBS multicast service. The priority of the MBS broadcast service may be higher than that of one or more unicast services, or the priority of the MBS broadcast service may be higher than that of one or more MBS multicast services. Furthermore, multiple unicast services include all unicast services, and multiple MBS multicast services include all MBS multicast services.

[0100] In other words, the priority of MBS broadcast service is higher than that of unicast service and MBS multicast service. The priority of MBS broadcast service can be higher than that of some unicast services and some MBS multicast services. The priority of MBS broadcast service can be higher than that of all unicast services and all MBS multicast services. The priority of MBS broadcast service can also be higher than that of any unicast service and any MBS multicast service.

[0101] It should be noted that the priority of the MBS broadcast service here is not higher than the unicast service and the MBS multicast service. It can be that the MBS broadcast service associated with the MII is not higher than the unicast service and the MBS multicast service, or one or more MBS broadcast services that the UE is receiving or interested in are not higher than the unicast service and the MBS multicast service, or other MBS broadcast services.

[0102] Here, the priority of the MBS broadcast service is not higher than that of the unicast service and the MBS multicast service. It can be that the priority of the MBS broadcast service is not higher than that of the unicast service, or that the priority of the MBS broadcast service is not higher than that of the MBS multicast service, or that the priority of the MBS broadcast service is not higher than that of the unicast service and the MBS multicast service.

[0103] Here, the priority of the MBS broadcast service is not higher than that of the unicast service and the MBS multicast service, which means that the priority of the MBS broadcast service is not higher than that of one or more unicast services, or that the priority of the MBS broadcast service is not higher than that of one or more MBS multicast services. Furthermore, multiple unicast services include all unicast services, and multiple MBS multicast services include all MBS multicast services.

[0104] In other words, the priority of MBS broadcast service is not higher than that of unicast service and MBS multicast service. It can be that the priority of MBS broadcast service is not higher than that of some unicast services and some MBS multicast services. It can also be that the priority of MBS broadcast service is not higher than that of all unicast services and all MBS multicast services. It can also be that the priority of MBS broadcast service is not higher than that of any unicast service and any MBS multicast service.

[0105] According to the relationship between the priority of the MBS broadcast service and the priorities of other services indicated by the priority information, when the priority of the MBS broadcast service is higher than the priorities of other services, one or more wireless bearers may be released or suspended, thereby providing available wireless bearers for the MBS broadcast service; when the priority of the MBS broadcast service is not higher than the priorities of other services, no operation of adjusting the wireless bearers may be performed (which can be understood as no wireless bearer being released or suspended), or one or more wireless bearers previously released or suspended may be restored, rebuilt or reactivated.

[0106] Exemplarily, five radio bearers are established between the network device and the UE: RB1, RB2, RB3, RB4 and RB5. When the priority of the MBS broadcast service is higher than the priority of other services, one or more radio bearers may be released or suspended, for example, RB1 and RB2 are released or suspended, and RB6 and RB7 may be established if the MBS broadcast service requires it. If the latest priority indicates that the priority of the MBS broadcast service is not higher than the priority of other services, the radio bearers may not be adjusted, that is, the five radio bearers RB1, RB2, RB3, RB4 and RB5 are maintained. If the latest priority indicates that the priority of the MBS broadcast service is not higher than the priority of other services, one or more radio bearers that were previously released or suspended may be restored, rebuilt or reactivated. On this basis, it is possible to determine how to adjust the radio bearers according to the priority of the MBS broadcast service to improve the utilization of network resources.

[0107] In one embodiment, the radio bearer includes: a unicast bearer (Unicast Bearer) and / or an MRB (MBS Radio Bearer, MBS radio bearer).

[0108] Among them, DRB can be used for the transmission of unicast services.

[0109] Among them, MBS (Multicast / Broadcast service) services include multicast services and / or broadcast services.

[0110] Accordingly, the MBS radio bearer MRB may include a multicast MRB and / or a broadcast MRB.

[0111] In other words, the radio bearer may include a unicast bearer, and / or a multicast MRB, and / or a broadcast MRB.

[0112] Taking a single radio bearer as an example, the process of releasing the radio bearer may include at least one of the following situations:

[0113] For a radio bearer of a unicast service, if the network device decides that the radio bearer needs to be released, both the network device and the user equipment release the radio bearer;

[0114] For the multicast radio bearer MRB of the MBS multicast service, if the network device decides that the radio bearer needs to be released, the network device sends an instruction to release the radio bearer to the user equipment in the group, and the user equipment in the group releases the radio bearer after receiving the instruction; the network device releases the radio bearer when all the user equipments in the group release the radio bearer;

[0115] For the radio bearer broadcast MRB of the MBS broadcast service, the network equipment decides whether to establish or release the radio bearer. During the establishment of the radio bearer, the user equipment can also decide whether to establish or release the radio bearer. For example, if the UE is interested in the MBS broadcast service, the radio bearer is established; if the UE is not interested in the MBS broadcast service, the radio bearer is released.

[0116] On this basis, network equipment and user equipment can flexibly adjust the radio bearers of various MBS services according to demand and provide appropriate radio bearers for MBS broadcast services.

[0117] In one embodiment, the MBS broadcast service includes at least one of the following:

[0118] MBS broadcast service in the service cell;

[0119] MBS broadcast services indicated in the service list contained in the MII;

[0120] The MBS broadcast service corresponding to the service area entered by the user equipment;

[0121] The MBS broadcast service corresponding to the service area that the user equipment leaves.

[0122] Specifically, the MBS broadcast service may include the following MBS broadcast service in the serving cell:

[0123] The MII reported by the UE may include priority information, and / or the priority information may indicate that the priority of the MBS broadcast service in the serving cell is higher than the priority of other services, then one or more radio bearers are released or suspended;

[0124] If the MII does not include priority information, and / or the priority information included in the MII indicates that the priority of the MBS broadcast service in the serving cell is not higher than the priority of other services, then the radio bearer does not exist or is suspended;

[0125] If the MII does not include priority information, and / or the priority information included in the MII indicates that the priority of the MBS broadcast service in the serving cell is not higher than the priority of other services, one or more radio bearers previously released or suspended are restored or reestablished or reactivated.

[0126] Specifically, the MBS broadcast service may include the MBS broadcast service indicated in the service list included in the MII:

[0127] The MII reported by the UE may include priority information, and / or the priority information may indicate that the priority of the MBS broadcast service indicated in the service list included in the MII is higher than the priority of other services, then one or more radio bearers are released or suspended;

[0128] If the MII does not contain priority information, and / or the priority information contained in the MII indicates that the priority of the MBS broadcast service indicated in the service list contained in the MII is not higher than the priority of other services, then the radio bearer does not exist or is suspended;

[0129] If the MII does not contain priority information, and / or the priority information contained in the MII indicates that the priority of the MBS broadcast service indicated in the service list contained in the MII is not higher than the priority of other services, then one or more radio bearers previously released or suspended are restored or reestablished or reactivated.

[0130] Specifically, the MBS broadcast service may include the MBS broadcast service corresponding to the service area entered by the user equipment:

[0131] The MII reported by the UE may include priority information, and / or the priority information may indicate that the priority of the MBS broadcast service corresponding to the service area entered by the user equipment is higher than the priority of other services, then one or more radio bearers are released or suspended;

[0132] If the MII does not contain priority information, and / or the priority information contained in the MII indicates that the priority of the MBS broadcast service corresponding to the service area entered by the user equipment is not higher than the priority of other services, then the radio bearer does not exist or is suspended;

[0133] If the MII does not contain priority information, and / or the priority information contained in the MII indicates that the priority of the MBS broadcast service corresponding to the service area entered by the user equipment is not higher than the priority of other services, then one or more radio bearers previously released or suspended are restored or reestablished or reactivated.

[0134] Specifically, the MBS broadcast service may include an MBS broadcast service corresponding to the service area that the user equipment leaves:

[0135] The MII reported by the UE may include priority information, and / or the priority information may indicate that the priority of the MBS broadcast service corresponding to the service area that the user equipment leaves is higher than the priority of other services, then one or more radio bearers are released or suspended;

[0136] If the MII does not contain priority information, and / or the priority information contained in the MII indicates that the priority of the MBS broadcast service corresponding to the service area that the user equipment has left is not higher than the priority of other services, then the radio bearer does not exist or is suspended;

[0137] If the MII does not contain priority information, and / or the priority information contained in the MII indicates that the priority of the MBS broadcast service corresponding to the service area left by the user equipment is not higher than the priority of other services, then one or more radio bearers previously released or suspended are restored or reestablished or reactivated.

[0138] It should be noted that a service cell may include one or more service areas of MBS broadcast services, a single MBS broadcast service may correspond to one or more service areas, different service areas may correspond to different MBS broadcast services, or the same MBS broadcast service may exist.

[0139] Assume that the UE reaches the boundary between service area A and service area B in the serving cell, leaves service area A and enters service area B; the MBS broadcast service in the serving cell includes MBS 1 MBS 2 MBS 3 ; The MBS broadcast service that the UE is receiving or interested in indicated in the service list is MBS 2 MBS 3 ; The MBS broadcast service corresponding to the service area B entered by the UE is MBS 2 ; The MBS broadcast service corresponding to the service area A that the UE leaves is MBS 3 ; then the UE can initiate MII reporting when leaving service area A and / or entering service area B.

[0140] The priority information in the MII may be the priority information of one or more MBS broadcast services in the serving cell (i.e., indicating the priority of the MBS 1 MBS 2 and / or MBS 3 priority of the MBS broadcast service indicated in one or more service lists (i.e., indicating whether the priority of the MBS broadcast service is higher than that of other services). 2 and / or MBS 3 priority of the MBS broadcast service corresponding to the service area B entered (i.e., indicating whether the priority of the MBS 2 priority of the MBS broadcast service corresponding to the service area A being left (i.e., indicating whether the priority of the MBS broadcast service is higher than that of other services). 3 The priority of the service is higher than that of other services), etc., where other services include unicast and MBS multicast services.

[0141] In one embodiment, the scenario supporting the user equipment to trigger the MII reporting process also includes at least one of the following:

[0142] When a connection is successfully established and / or restored (which can be an RRC connection, and / or a connection between vehicles, etc.), when an MBS broadcast session starts or stops, when switching to a primary cell (PCell) that supports SIB21, when SIB20 of a secondary cell (SCell) is received through dedicated signaling, when switching, when the RRC connection is re-established, when switching to a PCell that provides a non-serving cell MII (nonServingCellMII) in SIB1, when starting or stopping receiving MBS broadcast services in a non-serving cell.

[0143] Furthermore, scenarios that support user equipment triggering the MII process also include: the user equipment enters or leaves the service area corresponding to the MBS broadcast service. That is, for a user equipment, the scenarios that can trigger the MII process include: when a connection is successfully established and / or restored (which can be an RRC connection, and / or a connection between vehicles, etc.), when an MBS broadcast session starts or stops, when switching to a primary cell (PCell) that supports SIB21, when receiving a SIB20 of a secondary cell (SCell) through dedicated signaling, when switching, when the RRC connection is reestablished, when switching to a PCell that provides a non-serving cell MII (nonServingCellMII) in SIB1, when starting or stopping receiving the MBS broadcast service in a non-serving cell; the user equipment enters or leaves the service area corresponding to the MBS broadcast service.

[0144] On this basis, the UE can determine whether to trigger the MII reporting process in various scenarios, improve the flexibility and timeliness of reporting MII, enable network equipment to promptly learn the latest MBS broadcast services that the user equipment is receiving or interested in receiving, and improve the reliability of MBS broadcast services.

[0145] In one embodiment, the method further comprises:

[0146] An MBS control channel (Multicast / Broadcast Control Channel, MCCH) is received, where the MCCH is used to indicate an MBS service and its corresponding service area.

[0147] Exemplarily, for each MBS service, indication information of one or more service areas of the MBS service may be added to the MCCH. For example, identifiers of one or more service areas of the MBS service may be added to the MCCH.

[0148] Exemplarily, for each MBS broadcast service, indication information of one or more service areas of the MBS broadcast service may be added to the MCCH. For example, identifiers of one or more service areas of the MBS broadcast service may be added to the MCCH.

[0149] The UE can determine the service area corresponding to each MBS broadcast service according to the indication information in the MCCH, and can trigger the MBS interest indication MII reporting process when entering or leaving the service area corresponding to any MBS broadcast service.

[0150] On this basis, the UE can identify the MBS broadcast service and its corresponding service area, and then when entering or leaving a service area, it can determine whether to trigger the MII reporting process and generate the latest MII.

[0151] In one embodiment, the MCCH includes an MBS service identifier corresponding to each MBS service and identifier information of a service area corresponding to each MBS service.

[0152] The service area corresponding to each MBS service may be indicated to the UE by the network device, for example, through a system message. The MCCH includes the MBS service identifier corresponding to each MBS service and the identification information of the service area corresponding to each MBS service. Exemplarily, the MCCH may include the MBS service identifier of at least one MBS service and the service area corresponding to each MBS service. The MCCH may also include at least one service area and the MBS service corresponding to each service area.

[0153] Among them, MBS services include MBS broadcast services and MBS multicast services.

[0154] In one embodiment, the MCCH includes an MBS broadcast service identifier corresponding to each MBS broadcast service and identifier information of a service area corresponding to each MBS broadcast service.

[0155] As an example, the service area corresponding to each MBS broadcast service can be indicated to the UE by the network device, for example, it can be indicated to the UE through a system message. The MCCH includes the MBS service identifier corresponding to each MBS broadcast service and the identification information of the service area corresponding to each MBS broadcast service. Exemplarily, the MCCH may include the MBS service identifier of at least one MBS broadcast service and the service area corresponding to each MBS broadcast service. The MCCH may also include at least one service area and the MBS broadcast service corresponding to each service area.

[0156] Among them, the identification information can be an index of the service area, and the index of each service area can be arranged in the order of indication or configuration of each service area; the identification information can also be an identification of the service area, and the identification of each service area can be uniquely assigned to all service areas within a certain range (such as a service cell); the identification information can also be related to the position or order of the service area in the indication information (such as the information element indicating the service area in the system message), that is, the service area may not have an actual corresponding index or identification, but is implicitly determined according to its position or order in the indication information. For example, x service areas are indicated in sequence in the system message, then for the i-th (1≤i≤x) service area, the identification information of the service area in the MCCH can be "i".

[0157] As an example, MCCH is used to indicate at least one MBS broadcast service and a service area corresponding to each MBS broadcast service. For example, there are three MBS broadcast services in the communication system: MBS 1 MBS 2 MBS 3 , MCCH can indicate the following: MBS 1 The corresponding business area is Area 1 , MBS 2 The corresponding business area is Area 2 and Area 3 , MBS 3 The corresponding business area is Area 3 .

[0158] Specifically, the MCCH may include an MBS broadcast service list, which is used to indicate at least one MBS broadcast service and a service area corresponding to each MBS broadcast service. For example, the MBS broadcast service list is in the following form:

[0159] MBS 1

[0160] Area 1

[0161] MBS 2

[0162] Area 2 、Area 3

[0163] MBS 3

[0164] Area 3

[0165] As an example, MCCH is used to indicate at least one service area and the MBS broadcast service corresponding to each service area. 1 、Area 2 and Area 3 The indication information can indicate the following: Area 1 The corresponding MBS broadcast service is MBS 1 , Area 2 The corresponding MBS broadcast service is MBS 2 , Area 3 The corresponding MBS broadcast service is MBS 2 MBS 3 .

[0166] Specifically, the MCCH may include a service area list, which is used to indicate at least one service area and the MBS broadcast service corresponding to each service area. For example, the service area list is in the following form:

[0167] Area 1

[0168] MBS 1

[0169] Area 2

[0170] MBS 2

[0171] Area 3

[0172] MBS 2 MBS 3

[0173] In one embodiment, the method further comprises:

[0174] A system message is received, where the system message is used to indicate geographic location information of a service area.

[0175] For example, a new SIB can be introduced, which contains a list of geographical location information of the service area. On this basis, the UE can determine its current location or whether it has entered or left the service area of ​​the MBS broadcast service based on the geographical location information, thereby determining whether to trigger the MII reporting process.

[0176] In one embodiment, the geographic location information includes at least one of the following:

[0177] Circular area, including: identification information and / or reference location information and / or radius of the business area:

[0178] A polygonal area includes: identification information of the business area and / or vertex positions and / or longitude and / or latitude and / or boundary line position information and / or north-south indications.

[0179] In this embodiment, the geographical location information may be used to indicate the range actually covered by the service area. The geographical location information may include circular area information, and / or polygonal area information and / or other types of area information.

[0180] As an example, the business area may be a circular area, and the corresponding regional geographic location information may include identification information of the business area and / or reference location information and / or the radius of the circular area. The reference location information may be the position of the center of the circle or the longitude and latitude coordinates, etc.

[0181] Taking the circular area as an example, the service area corresponding to the MBS broadcast service can also be called the intended service area. The data structure of the intended service area is as follows:

[0182]

[0183] Wherein, AreaId is used to indicate the identification information of the service area, ReferenceLocation is used to indicate the reference location information, and DistanceRadius is used to indicate the radius. It should be noted that the above data structure is an exemplary description, and this embodiment does not specifically limit the naming and format of each piece of information.

[0184] Illustratively, the ReferenceLocation information element contains location information used as a reference location. The value of this field is the same as the ellipsoid point defined in TS37.355

[49] . The first (leftmost) bit of the first octet contains the most significant bit. The data structure of the ReferenceLocation information element is as follows:

[0185] --ASN1START

[0186] --TAG-REFERENCELOCATION-START

[0187] ReferenceLocation-r17::=OCTET STRING

[0188] --TAG-REFERENCELOCATION-STOP

[0189] --ASN1STOP

[0190] As an example, the business area may be a polygonal area, and the corresponding regional geographic location information may include the shape of the polygonal area (such as the number of sides and / or side lengths of the polygon, etc.), the positions of the vertices of the polygonal area, longitude and latitude, boundary line position information (such as the direction of the edge, the position of the endpoint or midpoint of each edge, etc., or the longitude and latitude coordinates, etc.), and / or north-south indications (such as whether it is located in the southern hemisphere or the northern hemisphere), etc.

[0191] Taking a polygonal area as an example, the service area corresponding to the MBS broadcast service can also be called an intended service area. The data structure of the intended service area is as follows:

[0192]

[0193]

[0194] Among them, Polygon is used to represent the business area, the polygon can have 3 to 15 sides, PolygonPoints is used to represent the location of the vertices of the polygon area, latitudeSign is used to represent the north-south indication, degreesLatitude represents the longitude, and degreesLongitude is used to represent the latitude. It should be noted that the above data structure is an exemplary description, and this embodiment does not specifically limit the naming and format of each piece of information.

[0195] It should be noted that in the system message, each business area in the geographic location information may have a unique corresponding index or identifier, or may not have a unique corresponding index or identifier, and may be indicated in sequence by vertex position and / or longitude and / or latitude and / or boundary line position information and / or north-south indications.

[0196] It should be noted that the identification information of the service area in the geographic location information may be an index of the service area, may be an identification of the service area, or may be related to the position or order in the information element indicating the service area in the system message. In addition, for a service area, the identification information of the service area in the geographic location information and the identification information of the service area in the MCCH may be in the same form or in different forms. For example, the identification information of a service area in the geographic location information is the index of the service area, and the identification information of the service area in the MCCH may be the index of the service area, may be the identification of the service area, or may be related to the position or order in the information element indicating the service area in the system message, etc.

[0197] In one embodiment, the business area includes one of the following:

[0198] The entire area of ​​an NTN cell;

[0199] Part of an NTN cell;

[0200] The entire area of ​​multiple NTN cells;

[0201] a portion of each of the plurality of NTN cells;

[0202] The entire area of ​​at least one NTN cell and a partial area of ​​at least one NTN cell.

[0203] It can be understood that the service area of ​​an MBS broadcast service may include one or more geographical areas across the current serving cell and the neighboring cells overlapping therewith.

[0204] The service area of ​​MBS broadcasting service can be flexibly set according to the actual situation. Figure 2 As shown, the service area of ​​the MBS broadcast service may be the entire area of ​​an NTN cell (as shown in the shaded area of ​​case 1); may be a partial area of ​​an NTN cell (as shown in the shaded area of ​​case 2); may be the entire area of ​​multiple NTN cells (as shown in the shaded area of ​​case 3); may be a partial area of ​​each of the multiple NTN cells (as shown in the shaded area of ​​case 4); may be the entire area of ​​at least one NTN cell and a partial area of ​​at least one NTN cell (as shown in the shaded area of ​​case 5). Figure 4 The shaded area of ​​case 5 in FIG.

[0205] Figure 3 A flowchart of a MII receiving method provided in an embodiment of the present application is provided. This embodiment can be applied to the case of MII receiving. Specifically, the MII receiving method can be executed by a MII receiving device, which can be implemented by software and / or hardware and integrated in a network device. It should be noted that the details not described in detail in this embodiment can be referred to any of the above embodiments.

[0206] like Figure 3 As shown, the method specifically comprises the following steps:

[0207] S210: Receive an MBS interest indication MII reported by a user equipment.

[0208] Among them, the scenarios that support the user equipment triggering the MII reporting process include: the user equipment enters or leaves the service area corresponding to the MBS broadcast service.

[0209] In this embodiment, the MBS interest indication may be used to indicate relevant information of the MBS broadcast service that the UE is currently receiving or is interested in receiving. Scenarios that support the reporting process of the user equipment triggering the MII include: the UE enters or leaves the service area corresponding to the MBS broadcast service.

[0210] It should be noted that the MBS broadcast service here can be one MBS broadcast service or multiple MBS broadcast services. Further, the multiple MBS broadcast services here include two or more MBS broadcast services. Further, the MBS broadcast service can be all MBS broadcast services, including all MBS broadcast services of interest to the UE, including all MBS broadcast services that the UE is receiving or about to receive, including all MBS broadcast services in the MBS interest list. Further, the MBS broadcast service can be one MBS broadcast service among all MBS broadcast services, or multiple MBS broadcast services among all MBS broadcast services.

[0211] It should be noted that the service area corresponding to the MBS broadcast service here can be one service area or multiple service areas. The service area may include an area that can be covered by a sending device under an NTN network connection, or an area in an NTN cell that can be covered by a sending device under an NTN network connection. The service area in an NTN cell may be one or multiple. In one embodiment, the UE enters or leaves one or more service areas corresponding to an MBS broadcast service, supports triggering the MBS interest indication MII reporting process, and the network device can receive the MII.

[0212] It should be noted that when the UE enters or leaves the service area corresponding to the MBS broadcast service, it supports triggering the MII report. Whether to trigger the MII report can be determined comprehensively according to the actual situation. In other words, when the UE enters or leaves the service area corresponding to the MBS broadcast service, the MII report can be triggered or not, and the network device may receive the MII or may not receive the MII.

[0213] In an embodiment, when a UE enters or leaves one or more service areas corresponding to an MBS broadcast service, an MBS interest indication MII reporting process may be triggered.

[0214] In an exemplary application scenario: When a UE enters an MBS broadcast service (such as MBS 1 ) service area, the MBS broadcast service being received or interested in receiving is other MBS broadcast services (such as MBS 2 ), before entering MBS 1 When the MBS broadcast service being received or interested in receiving is in the service area, it becomes MBS 1 In this case, the MII reporting process can be triggered, and the network device can promptly know that the MBS broadcast service that the UE is receiving or interested in receiving is MBS 2, and then for MBS 1 Allocate sufficient network resources to avoid MBS 1 Packet loss, terminal or reception failure, etc.

[0215] In another exemplary application scenario: a UE is in an MBS broadcast service (such as MBS 3 ) service area, the MBS broadcast service being received or interested in receiving is MBS 3 , before leaving MBS 3 When the MBS broadcast service being received or receiving with interest changes to another MBS broadcast service (such as MBS 4 ), MBS 3 It is no longer the MBS broadcast service that the UE is receiving or interested in receiving. In this case, the MII reporting process can be triggered, and the network device can promptly know that the MBS broadcast service that the UE is receiving or interested in receiving is MBS 4 , and then for MBS 4 Allocate sufficient network resources to avoid MBS 4 Packet loss, terminal or reception failure, etc.

[0216] The MII receiving method of this embodiment regards the UE entering or leaving the service area corresponding to the MBS broadcast service as a scenario that can trigger the MBS interest indication MII reporting process, which can ensure that the user equipment reports the MII in a timely manner during the movement, so that the network equipment can promptly know the latest MBS broadcast service that the user equipment is receiving or interested in receiving, and then reasonably adjust or optimize network resources, thereby improving the reliability and service quality of the MBS broadcast service.

[0217] In one embodiment, the user equipment is in an RRC connected state.

[0218] In one embodiment, the user equipment has MBS capability.

[0219] In one embodiment, the MII is generated by the user equipment according to the current situation when the user equipment enters or leaves the service area corresponding to the MBS broadcast service.

[0220] In one embodiment, the MII includes at least one of the following:

[0221] An MBS frequency list, where the MBS frequency list is used to indicate MBS frequencies where the MBS broadcast service that the user equipment is receiving or interested in is located;

[0222] An MBS non-serving cell information list, where the MBS non-serving cell information list is used to indicate information on receiving MBS broadcast services in non-serving cells;

[0223] Priority information, where the priority information is used to indicate a relationship between a priority of the MBS broadcast service and a priority of other services, where the other services include a unicast service and an MBS multicast service;

[0224] A service list is used to indicate MBS broadcast services that the user equipment is currently receiving or is interested in.

[0225] In one embodiment, the method further comprises:

[0226] The radio bearer of the MBS broadcast service is adjusted according to the MII.

[0227] Exemplarily, according to MII, the network device can adjust the radio bearer for the MBS broadcast service that the UE is receiving or interested in. For example, for the MBS broadcast service that the UE is receiving or interested in, some radio bearers can be released or reserved for it; for another example, for the MBS broadcast service that the UE is receiving or interested in and has a higher priority than the unicast and MBS multicast services, some radio bearers can be released or reserved for it, and for the MBS broadcast service that the UE is receiving or interested in and has a priority not higher than the unicast and MBS multicast services, the radio bearer may not be released or reserved for it, or its corresponding radio bearer may be released, etc. On this basis, it can ensure that the appropriate radio bearer is provided for the MBS broadcast service and fully utilize network resources.

[0228] In one embodiment, adjusting the radio bearer of the MBS broadcast service according to the MII includes at least one of the following:

[0229] If the MII includes priority information, and / or the priority information indicates that the priority of the MBS broadcast service is higher than the priority of other services, releasing one or more radio bearers;

[0230] If the MII does not include priority information, and / or the priority information indicates that the priority of the MBS broadcast service is not higher than the priority of other services, the radio bearer is not released;

[0231] If the MII does not include priority information, and / or the priority information, restoring or reestablishing one or more radio bearers previously released;

[0232] The other services include unicast services and / or multicast services and / or broadcast services.

[0233] Taking a single radio bearer as an example, the process of releasing the radio bearer may include at least one of the following situations:

[0234] For a radio bearer of a unicast service, if the network device decides that the radio bearer needs to be released, both the network device and the user equipment release the radio bearer;

[0235] For the radio bearer of the MBS multicast service, if the network device decides that the radio bearer needs to be released, the network device sends an instruction to release the radio bearer to the user equipment in the group, and the user equipment in the group releases the radio bearer after receiving the instruction; the network device releases the radio bearer when all the user equipments in the group release the radio bearer;

[0236] For the wireless bearer of the MBS broadcast service, the network equipment decides whether to establish or release the wireless bearer. During the establishment of the wireless bearer, the user equipment can also decide whether to establish or release the wireless bearer. For example, if the UE is interested in the MBS broadcast service, the wireless bearer is established; if the UE is not interested in the MBS broadcast service, the wireless bearer is released.

[0237] Exemplarily, when the priority of the MBS broadcast service is higher than the priority of other services, one or more wireless bearers may be released or suspended to provide available wireless bearers for the MBS broadcast service; when the priority of the MBS broadcast service is not higher than the priority of other services, no operation of adjusting the wireless bearers may be performed (which may be understood as not releasing or suspending the wireless bearers), or one or more wireless bearers previously released or suspended may be restored, rebuilt, or reactivated.

[0238] Exemplarily, five radio bearers are established between the network device and the UE: RB1, RB2, RB3, RB4 and RB5. When the priority of the MBS broadcast service is higher than the priority of other services, one or more radio bearers may be released or suspended. For example, RB1 and RB2 are released or suspended. If the MBS broadcast service requires, RB6 and RB7 may be established. If the latest priority indicates that the priority of the MBS broadcast service is not higher than the priority of other services, the radio bearers may not be adjusted, that is, the five radio bearers RB1, RB2, RB3, RB4 and RB5 are maintained. If the latest priority indicates that the priority of the MBS broadcast service is not higher than the priority of other services, one or more radio bearers previously released or suspended may be restored, rebuilt or reactivated. On this basis, it is possible to determine how to adjust the radio bearers according to the priority of the MBS broadcast service to improve the utilization of network resources.

[0239] In one embodiment, the radio bearer includes: a unicast bearer, and / or a multicast MRB, and / or a broadcast MRB.

[0240] In one embodiment, the MBS broadcast service includes at least one of the following:

[0241] MBS broadcast service in the service cell;

[0242] MBS broadcast services indicated in the service list contained in the MII;

[0243] MBS broadcast service of the service area entered by the user equipment;

[0244] The MBS broadcast service corresponding to the service area that the user equipment leaves.

[0245] In one embodiment, the scenario supporting the user equipment to trigger the MII reporting process also includes at least one of the following:

[0246] When a connection is successfully established and / or restored, when an MBS broadcast session starts or stops, when switching to a PCell supporting SIB21, when SIB20 of an SCell is received through dedicated signaling, when switching, when the RRC connection is re-established, when switching to a PCell that provides non-service cell MII in SIB1, when starting or stopping receiving MBS broadcast services in a non-service cell.

[0247] In one embodiment, the method further comprises:

[0248] The MCCH is sent, where the MCCH is used to indicate the service area corresponding to each MBS service.

[0249] In one embodiment, the MCCH includes an MBS service identifier corresponding to each MBS service and identifier information of a service area corresponding to each MBS service.

[0250] In one embodiment, the method further comprises:

[0251] Send a system message, where the system message is used to indicate the service area and its corresponding geographical location information.

[0252] In one embodiment, the geographic location information includes at least one of the following:

[0253] Circular area, including: identification information and / or reference location information and / or radius of the business area:

[0254] A polygonal area includes: identification information of the business area and / or vertex positions and / or longitude and / or latitude and / or boundary line position information and / or north-south indications.

[0255] In one embodiment, the business area includes one of the following:

[0256] The entire area of ​​an NTN cell;

[0257] Part of an NTN cell;

[0258] The entire area of ​​multiple NTN cells;

[0259] a portion of each of the plurality of NTN cells;

[0260] The entire area of ​​at least one NTN cell and a partial area of ​​at least one NTN cell.

[0261] Figure 4 A schematic diagram of the structure of a MII reporting device provided in an embodiment of the present application. Figure 4 As shown, the MII reporting device provided in this embodiment includes:

[0262] The trigger module 310 is used to support triggering the MBS interest indication MII reporting process when the user equipment enters or leaves the service area corresponding to the MBS broadcast service.

[0263] In one embodiment, the user equipment is in an RRC connected state.

[0264] In one embodiment, the user equipment has MBS capability.

[0265] In one embodiment, the apparatus further includes: a generating module, configured to generate the MII according to a current situation when the user equipment enters or leaves a service area corresponding to the MBS broadcast service.

[0266] In one embodiment, the MII includes at least one of the following:

[0267] An MBS frequency list, where the MBS frequency list is used to indicate MBS frequencies where the MBS broadcast service that the user equipment is receiving or interested in is located;

[0268] An MBS non-serving cell information list, where the MBS non-serving cell information list is used to indicate information on receiving MBS broadcast services in non-serving cells;

[0269] Priority information, where the priority information is used to indicate a relationship between a priority of the MBS broadcast service and a priority of other services, where the other services include a unicast service and an MBS multicast service;

[0270] A service list is used to indicate MBS broadcast services that the user equipment is currently receiving or is interested in.

[0271] In one embodiment, the radio bearer of the MBS broadcast service is adjusted according to the MII.

[0272] In one embodiment, the radio bearer of the MBS broadcast service satisfies at least one of the following:

[0273] If the MII includes priority information, and / or the priority information indicates that the priority of the MBS broadcast service is higher than the priority of other services, one or more radio bearers are released or suspended;

[0274] If the MII does not include priority information, and / or the priority information indicates that the priority of the MBS broadcast service is not higher than the priority of other services, then the radio bearer does not exist or is suspended;

[0275] If the MII does not include priority information, and / or the priority information indicates that the priority of the MBS broadcast service is not higher than the priority of other services, one or more radio bearers previously released or suspended are restored or reestablished or reactivated;

[0276] The other services include unicast services and / or multicast services and / or broadcast services.

[0277] In one embodiment, the radio bearer includes: a unicast bearer, and / or a multicast MRB, and / or a broadcast MRB.

[0278] In one embodiment, the MBS broadcast service includes at least one of the following:

[0279] MBS broadcast service in the service cell;

[0280] MBS broadcast services indicated in the service list contained in the MII;

[0281] The MBS broadcast service corresponding to the service area entered by the user equipment;

[0282] The MBS broadcast service corresponding to the service area that the user equipment leaves.

[0283] In one embodiment, the scenario supporting the user equipment to trigger the MII reporting process also includes at least one of the following:

[0284] When the connection is successfully established and / or restored, when the MBS broadcast session starts or stops, when switching to a PCell supporting SIB21, when SIB20 of an SCell is received through dedicated signaling, when switching, when the RRC connection is re-established, when switching to a PCell that provides non-serving cell MII (nonServingCellMII) in SIB1, when starting or stopping receiving MBS broadcast services in a non-serving cell.

[0285] In one embodiment, the device further comprises:

[0286] The first receiving module is used to receive MCCH, where the MCCH is used to indicate the MBS service and its corresponding service area.

[0287] In one embodiment, the MCCH includes an MBS service identifier corresponding to each MBS service and identifier information of a service area corresponding to each MBS service.

[0288] In one embodiment, the device further comprises:

[0289] The second receiving module is used to receive a system message, where the system message is used to indicate the geographical location information of the service area.

[0290] In one embodiment, the geographic location information includes at least one of the following:

[0291] Circular area, including: identification information and / or reference location information and / or radius of the business area:

[0292] A polygonal area includes: identification information of the business area and / or vertex positions and / or longitude and / or latitude and / or boundary line position information and / or north-south indications.

[0293] In one embodiment, the business area includes one of the following:

[0294] The entire area of ​​an NTN cell;

[0295] Part of an NTN cell;

[0296] The entire area of ​​multiple NTN cells;

[0297] a portion of each of the plurality of NTN cells;

[0298] The entire area of ​​at least one NTN cell and a partial area of ​​at least one NTN cell.

[0299] The MII reporting device provided in the embodiment of the present application can be used to execute the MII reporting method provided in any of the above embodiments, and has corresponding functions and beneficial effects.

[0300] Figure 5 A schematic diagram of the structure of a MII reporting device provided in an embodiment of the present application. Figure 5 As shown, the MII reporting device provided in this embodiment includes:

[0301] The receiving module 410 is configured to receive an MBS interest indication MII reported by a user equipment;

[0302] The scenarios supporting the user equipment triggering the MII reporting process include: the user equipment entering or leaving the service area corresponding to the MBS broadcast service.

[0303] In one embodiment, the user equipment is in an RRC connected state.

[0304] In one embodiment, the user equipment has MBS capability.

[0305] In one embodiment, the MII is generated by the user equipment according to the current situation when the user equipment enters or leaves the service area corresponding to the MBS broadcast service.

[0306] In one embodiment, the MII includes at least one of the following:

[0307] An MBS frequency list, where the MBS frequency list is used to indicate MBS frequencies where the MBS broadcast service that the user equipment is receiving or interested in is located;

[0308] An MBS non-serving cell information list, where the MBS non-serving cell information list is used to indicate information on receiving MBS broadcast services in non-serving cells;

[0309] Priority information, where the priority information is used to indicate a relationship between a priority of the MBS broadcast service and a priority of other services, where the other services include a unicast service and an MBS multicast service;

[0310] A service list is used to indicate MBS broadcast services that the user equipment is currently receiving or is interested in.

[0311] In one embodiment, the device further includes: an adjustment module, configured to adjust the radio bearer of the MBS broadcast service according to the MII.

[0312] In one embodiment, adjusting the radio bearer of the MBS broadcast service according to the MII includes at least one of the following:

[0313] If the MII includes priority information, and / or the priority information indicates that the priority of the MBS broadcast service is higher than the priority of other services, releasing one or more radio bearers;

[0314] If the MII does not include priority information, and / or the priority information indicates that the priority of the MBS broadcast service is not higher than the priority of other services, the radio bearer is not released;

[0315] If the MII does not include priority information, and / or the priority information, restoring or reestablishing one or more radio bearers previously released;

[0316] The other services include unicast services and / or multicast services and / or broadcast services.

[0317] In one embodiment, the radio bearer includes: a unicast bearer, and / or, a multicast MRB, and / or, a broadcast MRB.

[0318] In one embodiment, the MBS broadcast service includes at least one of the following:

[0319] MBS broadcast service in the service cell;

[0320] MBS broadcast services indicated in the service list contained in the MII;

[0321] MBS broadcast service of the service area entered by the user equipment;

[0322] The MBS broadcast service corresponding to the service area that the user equipment leaves.

[0323] In one embodiment, the scenario supporting the user equipment to trigger the MII reporting process also includes at least one of the following:

[0324] When a connection is successfully established and / or restored, when an MBS broadcast session starts or stops, when switching to a PCell supporting SIB21, when SIB20 of an SCell is received through dedicated signaling, when switching, when the RRC connection is re-established, when switching to a PCell that provides non-service cell MII in SIB1, when starting or stopping receiving MBS broadcast services in a non-service cell.

[0325] In one embodiment, the device further includes: a first sending module, configured to send an MCCH, wherein the MCCH is used to indicate a service area corresponding to each MBS broadcast service.

[0326] In one embodiment, the MCCH includes an MBS service identifier corresponding to each MBS service and identifier information of a service area corresponding to each MBS broadcast service.

[0327] In one embodiment, the device further includes: a second sending module, configured to send a system message, wherein the system message is used to indicate the service area and its corresponding geographical location information.

[0328] In one embodiment, the geographic location information includes at least one of the following:

[0329] Circular area, including: identification information and / or reference location information and / or radius of the business area:

[0330] A polygonal area includes: identification information of the business area and / or vertex positions and / or longitude and / or latitude and / or boundary line position information and / or north-south indications.

[0331] In one embodiment, the business area includes one of the following:

[0332] The entire area of ​​an NTN cell;

[0333] Part of an NTN cell;

[0334] The entire area of ​​multiple NTN cells;

[0335] a portion of each of the plurality of NTN cells;

[0336] The entire area of ​​at least one NTN cell and a partial area of ​​at least one NTN cell.

[0337] The MII reporting device provided in the embodiment of the present application can be used to execute the MII reporting method provided in any of the above embodiments, and has corresponding functions and beneficial effects.

[0338] The present application also provides a user equipment, including a processor and a memory, wherein the memory is configured to store a computer program, and when the computer program is executed by the processor, the processor implements the MII reporting method as described above.

[0339] The present application also provides a network device, including a processor and a memory, wherein the memory is configured to store a computer program, and when the computer program is executed by the processor, the processor implements the above-mentioned MII reporting method.

[0340] The present application also provides a computer-readable storage medium, including a computer program, and when the computer program is executed by a processor, the processor implements the method described in any embodiment.

[0341] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) mode. The computer-readable storage medium can be any available medium that can be accessed by the computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a solid state disk (solid state disk, SSD)), etc.

[0342] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0343] The above are only preferred embodiments of the present application, and are not intended to limit the embodiments and protection scope of the present application. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present application should be included in the protection scope of the present application.

Claims

1. A MII reporting method, characterized in that: The method is performed by a user equipment, and the method includes: When the user equipment enters or leaves the service area corresponding to the MBS broadcast service, it supports triggering the MBS interest indication MII reporting process.

2. The method according to claim 1, characterized in that The user equipment is in an RRC connected state.

3. The method according to claim 1, characterized in that The user equipment has MBS capability.

4. The method according to claim 1, characterized in that: Also includes: When the user equipment enters or leaves the service area corresponding to the MBS broadcast service, the MII is generated according to the current situation.

5. The method according to claim 1, wherein the MII comprises at least one of the following: An MBS frequency list, where the MBS frequency list is used to indicate MBS frequencies where the MBS broadcast service that the user equipment is receiving or interested in is located; An MBS non-serving cell information list, where the MBS non-serving information list is used to indicate information on receiving MBS broadcast services in non-serving cells; Priority information, where the priority information is used to indicate a relationship between a priority of the MBS broadcast service and a priority of other services, where the other services include a unicast service and an MBS multicast service; A service list is used to indicate MBS broadcast services that the user equipment is currently receiving or is interested in.

6. The method according to claim 1, characterized in that The radio bearer of the MBS broadcast service is adjusted according to the MII.

7. The method according to claim 6, characterized in that The radio bearer of the MBS broadcast service satisfies at least one of the following: If the MII includes priority information, and / or the priority information indicates that the priority of the MBS broadcast service is higher than the priority of other services, one or more radio bearers are released or suspended; If the MII does not include priority information, and / or the priority information indicates that the priority of the MBS broadcast service is not higher than the priority of other services, then the radio bearer does not exist or is suspended; If the MII does not include priority information, and / or the priority information indicates that the priority of the MBS broadcast service is not higher than the priority of other services, one or more radio bearers previously released or suspended are restored or reestablished or reactivated; The other services include unicast services and / or multicast services and / or broadcast services.

8. The method according to claim 6 or 7, characterized in that: The radio bearer includes: a unicast bearer, and / or a multicast MRB, and / or a broadcast MRB.

9. The method according to claim 1, characterized in that: The MBS broadcast service includes at least one of the following: MBS broadcast service in the service cell; MBS broadcast services indicated in the service list contained in the MII; The MBS broadcast service corresponding to the service area entered by the user equipment; The MBS broadcast service corresponding to the service area that the user equipment leaves.

10. The method according to claim 1, characterized in that The scenarios supporting the user equipment triggering the MII reporting process also include at least one of the following: When the connection is successfully established and / or restored, when the MBS broadcast session starts or stops, when switching to a PCell supporting SIB21, when SIB20 of an SCell is received through dedicated signaling, when switching, when the RRC connection is re-established, when switching to a PCell that provides non-serving cell MII (nonServingCellMII) in SIB1, when starting or stopping receiving MBS broadcast services in a non-serving cell.

11. The method according to claim 1, characterized in that: Also includes: Receive MCCH, where the MCCH is used to indicate an MBS service and its corresponding service area.

12. The method according to claim 11, characterized in that The MCCH includes an MBS service identifier corresponding to each MBS service and identifier information of a service area corresponding to each MBS service.

13. The method according to claim 1, characterized in that Also includes: A system message is received, where the system message is used to indicate geographic location information of a service area.

14. The method according to claim 13, characterized in that The geographic location information includes at least one of the following: Circular area, including: identification information and / or reference location information and / or radius of the business area: A polygonal area includes: identification information of the business area and / or vertex positions and / or longitude and / or latitude and / or boundary line position information and / or north-south indications.

15. The method according to claim 1, characterized in that The business area includes one of the following: The entire area of ​​an NTN cell; Part of an NTN cell; The entire area of ​​multiple NTN cells; a portion of each of the plurality of NTN cells; The entire area of ​​at least one NTN cell and a partial area of ​​at least one NTN cell.

16. A MII receiving method, characterized in that: The method is performed by a base station, and the method includes: Receive the MBS interest indication MII reported by the user equipment; The scenarios supporting the user equipment triggering the MII reporting process include: the user equipment entering or leaving the service area corresponding to the MBS broadcast service.

17. The method according to claim 16, characterized in that The user equipment is in an RRC connected state.

18. The method according to claim 16, characterized in that The user equipment has MBS capability.

19. The method according to claim 16, characterized in that The MII is generated by the user equipment according to the current situation when the user equipment enters or leaves the service area corresponding to the MBS broadcast service.

20. The method according to claim 16, wherein the MII comprises at least one of the following: An MBS frequency list, where the MBS frequency list is used to indicate MBS frequencies where the MBS broadcast service that the user equipment is receiving or interested in is located; An MBS non-serving cell information list, where the MBS non-serving information list is used to indicate information on receiving MBS broadcast services in non-serving cells; Priority information, where the priority information is used to indicate a relationship between a priority of the MBS broadcast service and a priority of other services, where the other services include a unicast service and an MBS multicast service; A service list is used to indicate MBS broadcast services that the user equipment is currently receiving or is interested in.

21. The method according to claim 16, characterized in that Also includes: The radio bearer of the MBS broadcast service is adjusted according to the MII.

22. The method according to claim 21, characterized in that Adjusting the radio bearer of the MBS broadcast service according to the MII includes at least one of the following: If the MII includes priority information, and / or the priority information indicates that the priority of the MBS broadcast service is higher than the priority of other services, releasing one or more radio bearers; If the MII does not include priority information, and / or the priority information indicates that the priority of the MBS broadcast service is not higher than the priority of other services, the radio bearer is not released; If the MII does not include priority information, and / or the priority information, restoring or reestablishing one or more radio bearers previously released; The other services include unicast services and / or multicast services and / or broadcast services.

23. The method according to claim 22, characterized in that The radio bearer includes: a unicast bearer, and / or a multicast MRB, and / or a broadcast MRB.

24. The method according to claim 16, characterized in that The MBS broadcast service includes at least one of the following: MBS broadcast service in the service cell; MBS broadcast services indicated in the service list contained in the MII; MBS broadcast service of the service area entered by the user equipment; The MBS broadcast service corresponding to the service area that the user equipment leaves.

25. The method according to claim 16, characterized in that The scenarios supporting the user equipment triggering the MII reporting process also include at least one of the following: When a connection is successfully established and / or restored, when an MBS broadcast session starts or stops, when switching to a PCell supporting SIB21, when SIB20 of an SCell is received through dedicated signaling, when switching, when the RRC connection is re-established, when switching to a PCell that provides non-service cell MII in SIB1, when starting or stopping receiving MBS broadcast services in a non-service cell.

26. The method according to claim 16, characterized in that Also includes: The MCCH is sent, where the MCCH is used to indicate the service area corresponding to each MBS service.

27. The method according to claim 26, characterized in that The MCCH includes an MBS service identifier corresponding to each MBS service and identifier information of a service area corresponding to each MBS service.

28. The method according to claim 16, characterized in that Also includes: Send a system message, where the system message is used to indicate the service area and its corresponding geographical location information.

29. The method according to claim 28, characterized in that The geographic location information includes at least one of the following: Circular area, including: identification information and / or reference location information and / or radius of the business area: A polygonal area includes: identification information of the business area and / or vertex positions and / or longitude and / or latitude and / or boundary line position information and / or north-south indications.

30. The method according to claim 16, characterized in that The business area includes one of the following: The entire area of ​​an NTN cell; Part of an NTN cell; The entire area of ​​multiple NTN cells; a portion of each of the plurality of NTN cells; The entire area of ​​at least one NTN cell and a partial area of ​​at least one NTN cell.

31. A MII reporting device, characterized in that: include: The trigger module is used to trigger the MII reporting process when the user equipment enters or leaves the service area corresponding to the MBS broadcast service.

32. A MII receiving device, characterized in that: include: A receiving module, used for receiving MII reported by user equipment; The scenarios supporting the user equipment triggering the MII reporting process include: the user equipment entering or leaving the service area corresponding to the MBS broadcast service.

33. A user device, comprising a processor and a memory, characterized in that: The memory is configured to store a computer program, and when the computer program is executed by the processor, the processor implements the MII reporting method according to any one of claims 1 to 15.

34. A network device comprising a processor and a memory, characterized in that: The memory is configured to store a computer program, and when the computer program is executed by the processor, the processor implements the MII receiving method according to any one of claims 16 to 30.

35. A computer-readable storage medium comprising a computer program, characterized in that: When the computer program is executed by a processor, the processor is caused to implement the method according to any one of claims 1 to 30.

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