Indication information sending method and apparatus, indication information receiving method and apparatus, user equipment, and storage medium

Abstract

The present application relates to the technical field of communications. Provided are an indication information sending method and apparatus, an indication information receiving method and apparatus, a user equipment, and a storage medium. The indication information sending method comprises: generating indication information, which is used for indicating a serving cell to which MBS configuration information is applicable, wherein the MBS configuration information is used for a user equipment to receive an MBS service; and sending the indication information to the user equipment. In the technical solution, by means of sending indication information, a serving cell to which MBS configuration information is applicable is effectively indicated to a user equipment, such that the user equipment can correctly receive an MBS service in the corresponding serving cell on the basis of the MBS configuration information, thereby improving the the reliability of the MBS service.

Description

Method, device, user equipment and storage medium for sending and receiving indication information Technical Field

[0001] The embodiments of the present application relate to the field of communication technologies, and in particular to a method, apparatus, user equipment, and storage medium for sending and receiving indication information. Background Art

[0002] With the rapid development of the Internet and the widespread adoption of large-screen, multi-functional terminals, a large number of mobile data multimedia services and various high-bandwidth multimedia services have emerged, such as video conferencing, television broadcasting, video on demand, advertising, online education, and interactive games. These services not only meet the multi-service needs of mobile users but also provide new growth opportunities for mobile operators. These mobile data multimedia services require multiple users to simultaneously receive the same data. Compared to conventional data services, they feature large data volumes, long durations, and low latency. To effectively utilize mobile network resources, the Third Generation Partnership Project (3GPP) proposed the Multicast Broadcast Multimedia Service (MBMS). This service transmits data from a single source to multiple destination terminals, enabling the sharing of network resources (including core and access networks) and improving network resource utilization. The MBMS technology studied in the Long Term Evolution (LTE) system is called evolved Multicast Broadcast Multimedia Service (E-MBMS). To further develop eMBMS in the 5G system and enhance the capabilities of the entire broadcast system, thereby supporting higher-speed and more efficient 5G broadcast application scenarios, such as future high-quality multimedia services such as 4K / 8K ultra-high-definition video, 3D video, multi-view video, and virtual reality (VR) / augmented reality (AR). This will greatly promote the future expansion of broadcasting and television to mobile terminals and bring prosperity to the high-definition video market. Therefore, 3GPP has established a research project on NR Multimedia Broadcast Service (MBS).

[0003] With the application of technologies such as carrier aggregation and dual connectivity, a user equipment (UE) can have multiple serving cells at the same time. In this case, for the MBS service that the UE needs to receive, it is currently unable to effectively indicate the serving cell (ServingCell) to which the MBS configuration information applies. Since the UE does not know the serving cell to which the MBS configuration information applies, it may attempt to use the MBS configuration information to receive the MBS service in a serving cell that does not support the MBS configuration information, but ultimately will not receive the MBS service. For example, the MBS configuration information applies to serving cell A but not to serving cell B. However, since the UE does not know the serving cell used by the MBS configuration information, it attempts to receive the MBS service based on the MBS configuration information in serving cell B, resulting in unnecessary power consumption and resource waste. It may also cause packet loss of the MBS service in the serving cell that originally supports the MBS configuration information, and the MBS service in serving cell A cannot be successfully received, affecting the reliability of the MBS service. Summary of the Invention

[0004] To address the above-mentioned problem of being unable to effectively indicate the serving cell to which MBS configuration information applies, the present application provides a method, apparatus, user equipment, and storage medium for sending and receiving indication information.

[0005] This embodiment of the present application provides a method for sending indication information, including:

[0006] generating indication information, where the indication information is used to indicate a serving cell to which the MBS configuration information is applicable, where the MBS configuration information is used for user equipment to receive an MBS service;

[0007] The indication information is sent to the user equipment.

[0008] This embodiment of the present application provides a method for receiving indication information, including:

[0009] receiving indication information, where the indication information is used to indicate a serving cell to which MBS configuration information is applicable, where the MBS configuration information is used by a user equipment to receive an MBS service;

[0010] A multicast service is received in a serving cell to which the MBS configuration information is applicable according to the indication information.

[0011] An embodiment of the present application provides a device for sending indication information, including:

[0012] a generating module, configured to generate indication information, where the indication information is used to indicate a serving cell to which the MBS configuration information is applicable, and the MBS configuration information is used for a user equipment to receive an MBS service;

[0013] The sending module is used to send the indication information to the user equipment.

[0014] An embodiment of the present application provides an indication information receiving device, including:

[0015] an information receiving module, configured to receive indication information, wherein the indication information is used to indicate a serving cell to which MBS configuration information is applicable, wherein the MBS configuration information is used for user equipment to receive MBS services;

[0016] The service receiving module is configured to receive a multicast service in a serving cell to which the MBS configuration information is applicable according to the indication information.

[0017] An embodiment of the present application provides a network device, including:

[0018] one or more processors;

[0019] a storage device for storing one or more programs;

[0020] When the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned indication information sending method.

[0021] An embodiment of the present application provides a user equipment, including:

[0022] one or more processors;

[0023] a storage device for storing one or more programs;

[0024] When the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned indication information receiving method.

[0025] An 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 method for sending indication information or method for receiving indication information is implemented.

[0026] Embodiments of the present application provide a method, apparatus, user equipment, and storage medium for sending and receiving indication information. The indication information sending method includes generating indication information for indicating the serving cell to which MBS configuration information applies, where the MBS configuration information is used by the user equipment to receive MBS services; and sending the indication information to the user equipment. By sending the indication information, the above technical solution effectively indicates to the user equipment the serving cell to which the MBS configuration information applies, enabling the user equipment to correctly receive MBS services in the corresponding serving cell based on the MBS configuration information, thereby improving the reliability of MBS services. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The features, advantages, and aspects of the various embodiments disclosed in this application will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the originals and elements are not necessarily drawn to scale.

[0028] FIG1 is a flowchart of a method for sending indication information provided by an embodiment of the present application;

[0029] FIG2 is a flow chart of a method for receiving indication information provided in an embodiment of the present application;

[0030] FIG3 is a schematic structural diagram of an indication information sending device provided in an embodiment of the present application;

[0031] FIG4 is a schematic structural diagram of an indication information receiving device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present application and are not intended to limit the present application. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions of the present application, not all of the structures.

[0033] Before discussing the exemplary embodiments in more detail, it should be mentioned 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 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] It should be noted that the concepts of "first" and "second" mentioned in the embodiments of this application are only used to distinguish different devices, modules, units or other objects, and are not used to limit the order or interdependence of the functions performed by these devices, modules, units or other objects.

[0035] In addition, the embodiments and features in the embodiments of the present application may be combined with each other unless there is any conflict.

[0036] In wireless communication networks, UEs can receive MBS configuration information and, based on this information, receive MBS services. For example, multicast services can be transmitted using a point-to-multipoint (PTM) method, which allows for lower data rates. Network nodes can transmit MBS services to multiple UEs, which helps conserve network resources when there are a large number of receiving UEs.

[0037] MBS configuration information mainly includes relevant configuration parameters for UE to receive MBS services, which can be sent to UE through dedicated Radio Resource Control (RRC) signaling, such as RRC release message with suspend configuration, or sent to UE through multicast MBS control channel. The multicast MBS control channel is different from the MBS control channel (MCCH) used for broadcasting, which enables UE in RRC connected state (RRC_CONNECTED) to receive MBS configuration information of multicast services and enter RRC inactive state (RRC_INACTIVE).

[0038] Before receiving multicast services in the RRC_INACTIVE state, the UE needs to join a multicast session. The multicast session can be activated before, after, or while the UE in the RRC_INACTIVE state receives MBS configuration information used for the multicast services.

[0039] For multicast services received by a UE, existing technologies only indicate MBS configuration information to the UE, but do not indicate the serving cell to which the MBS configuration information applies. A UE may have two or more serving cells. Since the UE does not know the serving cell to which the MBS configuration information applies, it may attempt to receive MBS services based on the MBS configuration information in an inappropriate serving cell, but will not receive the MBS services. This results in unnecessary power consumption and resource waste, and may also cause MBS packet loss in the serving cell that originally supports the MBS configuration information, impacting MBS service reliability.

[0040] As an exemplary application scenario: the UE has three service cells, namely Cell1, Cell2 and Cell3. The MBS configuration information received by the UE is applicable to Cell1 and Cell2, but not to Cell3. However, since the UE does not know the service cell to which the MBS configuration information applies, it may receive MBS services in Cell3 with the MBS configuration information, resulting in packet loss of MBS services in Cell1 and Cell2, and unnecessary waste of resources in the UE's operations in Cell3.

[0041] This application provides indication information and a method for sending and receiving the same. For MBS services, a network device indicates to a UE the serving cell to which the MBS configuration information applies. This enables the UE to correctly receive MBS services in the appropriate serving cell based on the MBS configuration information, thereby avoiding unnecessary resource waste and improving the reliability of MBS services.

[0042] The UE in the embodiments of the present application may be referred to as a terminal, which may be a mobile terminal, or a vehicle-mounted terminal, etc. The UE includes any device that provides voice and / or data connectivity to users, such as a wireless terminal device, a mobile terminal device, a device-to-device communication (D2D) terminal device, a vehicle-to-everything (V2X) terminal device, a machine-to-machine / machine-type communication (M2M / MTC) terminal device, an Internet of Things (IoT) terminal device, a light terminal device (Light UE), a reduced capability user equipment (REDCAP UE), a subscriber unit (Subscriber Unit), a subscriber station (Subscriber Station), a mobile station (Mobile Station), a remote station (Remote Station), an access point (AP), a remote terminal (Remote Terminal), an access terminal (Access Terminal), a user terminal (User Terminal), a user agent (User Agent), or a user device (User Device), etc. The UE may also be a user device in a future communication system, which is not limited in this patent.

[0043] The network device in the embodiment 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, such as 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) that stores 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.

[0044] Figure 1 is a flowchart of a method for sending indication information provided in Example 1 of the present application. This embodiment is applicable to situations where indication information is sent. Specifically, the method for sending indication information can be executed by an information sending device, which can be implemented in software and / or hardware and integrated into a network device.

[0045] As shown in FIG1 , the method specifically includes the following steps:

[0046] S110: Generate indication information, where the indication information is used to indicate a serving cell to which the MBS configuration information is applicable. The MBS configuration information is used for user equipment to receive MBS services.

[0047] S120: Send the instruction information to the terminal.

[0048] In this embodiment, the number of serving cells for the terminal is typically greater than one. Indication information is introduced to indicate the serving cell to which the MBS configuration information applies. The MBS configuration information may include specific configuration information for one or more MBS services received by the terminal, such as one or more configuration parameters for the MBS service. The serving cell to which the MBS configuration information applies can be understood as the UE being able to receive MBS services based on the serving cell to which the MBS configuration information applies. It should be noted that the MBS configuration information may apply to one or more serving cells.

[0049] MBS services may include at least one of the following services: a multicast service that can be received by a UE in RRC_CONNECTED state, a multicast service that can be received by a UE in RRC_INACTIVE state, and a broadcast service that can be received by a UE in RRC_CONNECTED, RRC_INACTIVE or RRC_IDLE.

[0050] As an example, the indication information may include the cell identifier (Cell ID) or cell index (Cell Index) of the serving cell to which the MBS configuration information applies. For example, if the UE has three serving cells: Cell1, Cell2, and Cell3, and the MBS configuration information applies to Cell1 and Cell2, the indication information may include the Cell IDs or Cell Indexes of Cell1 and Cell2.

[0051] As an example, the indication information may include multiple bits, each bit may indicate whether the MBS configuration information is applicable to a corresponding service cell. For example, a bit value of 1 indicates that the MBS configuration information is applicable to a corresponding service cell, and a bit value of 0 indicates that the MBS configuration information is not applicable to a corresponding service cell.

[0052] In one embodiment, the MBS configuration information and the indication information may be sent to the user equipment together. For example, the indication information may be included in the MBS configuration information, and the MBS configuration information may be sent to the user equipment. The MBS configuration information and the indication information may also be sent to the user equipment separately. For example, the indication information may be carried by dedicated signaling. For example, the dedicated signaling may be an RRC release message containing suspension configuration information. The indication information may be included in the suspension configuration information of the RRC release message. The dedicated signaling may also be an RRC reconfiguration message. It may also be other information, etc., which are not listed here.

[0053] If, according to the prior art, only the MBS configuration information is indicated without indicating the serving cell to which the MBS configuration information applies, the UE may receive MBS services with the MBS configuration information in an inappropriate serving cell because it does not know the serving cell to which the MBS configuration information applies, resulting in packet loss of the MBS service in the serving cell to which the MBS configuration information applies, and unnecessary waste of resources for the UE in the inappropriate serving cell.

[0054] In the indication information sending method of this embodiment, the network device can indicate to the UE the serving cell to which the MBS configuration information applies. The UE can then correctly receive the MBS service in the serving cell indicated by the indication information based on the MBS configuration information, thereby avoiding packet loss of the MBS service and reducing power consumption and saving resources.

[0055] It should be noted that the MBS service in the embodiments of the present application is a service that can be transmitted via a point-to-multipoint (PTM) mode, and the MBS configuration information can also be understood as point-to-multipoint configuration information (PTM Configuration). In some embodiments, the MBS configuration information in the method for sending and receiving indication information can be replaced with point-to-multipoint configuration information. For example, the method for sending indication information includes: generating indication information, the indication information being used to indicate a serving cell to which the point-to-multipoint configuration information applies, the point-to-multipoint configuration information being used for a user equipment to receive the MBS service; and sending the indication information to a terminal.

[0056] In one embodiment, the indication information includes at least one of first information and second information; the first information is used to indicate the serving cell to which the MBS configuration information applies; the second information is used to indicate, for an MBS service, the serving cell to which the MBS service configuration information corresponding to the MBS service in the MBS configuration information applies.

[0057] In one embodiment, the indication information may include only first information, where the first information is used to indicate the serving cell to which the MBS configuration information is applicable.

[0058] In one embodiment, the indication information may include only the second information, where the second information is used to indicate, for an MBS service, a serving cell to which the MBS service configuration information corresponding to the MBS service in the MBS configuration information is applicable.

[0059] In one embodiment, the indication information may include first information and second information at the same time, wherein the first information is used to indicate the serving cell to which the MBS configuration information applies, and the second information is used to indicate, for MBS services, the serving cell to which the MBS service configuration information corresponding to the MBS service in the MBS configuration information applies.

[0060] In this embodiment, the first information can be used to indicate to the UE the serving cell to which the MBS configuration information applies, that is, the serving cell to which the MBS service configuration information corresponding to at least one MBS service in the MBS configuration information applies; the second information can be used to indicate, for a specific MBS service, the serving cell to which the MBS service configuration information corresponding to the MBS service applies.

[0061] For example, a UE has three serving cells: Cell1, Cell2, and Cell3, and three different MBS services: MBS1, MBS2, and MBS3. For MBS1, the corresponding MBS service configuration information applies to Cell1; for MBS2, the corresponding MBS service configuration information applies to both Cell1 and Cell2; and for MBS3, the corresponding MBS service configuration information does not apply to any serving cell. In this example, the MBS configuration information applies to both Cell1 and Cell2.

[0062] In this case, the indication information may include first information for indicating that the MBS configuration information is applicable to Cell 1 and Cell 2. The indication information may also include second information, which may indicate, for MBS 1, that the corresponding MBS service configuration information is applicable to Cell 1, for MBS 2, that the corresponding MBS service configuration information is applicable to Cell 1 and Cell 2, and for MBS 3, that the corresponding MBS service configuration information is not applicable to any cell.

[0063] In some embodiments, for the case where the MBS service configuration information corresponding to the MBS service is not applicable to any service cell (such as the MBS service configuration information corresponding to the above-mentioned MBS3 is not applicable to any cell), the second information may indicate for the MBS service that the MBS service configuration information corresponding to the service is not applicable to any service cell; or, the content indicated for the MBS service in the second information may also be empty, or may be a set default value, thereby indicating that for MBS3, the corresponding MBS service configuration information is not applicable to any service cell.

[0064] In some embodiments, if the content of the MBS service indication in the second information is empty, it may also be a set default value, or it may indicate that for MBS3, the corresponding MBS service configuration information is applicable to the serving cell in which the UE receives the corresponding MBS service configuration information for the service.

[0065] It should be noted that the indication information may include at least one of the first information and the second information. When the indication information includes the second information, the second information may be used to indicate, for one, multiple, or all MBS services, the serving cell to which the MBS service configuration information corresponding to each MBS service applies. That is, the second information may indicate the cell to which the corresponding MBS service configuration information applies for each MBS service of the UE, or may indicate the cell to which the corresponding MBS service configuration information applies only for some of the UE's MBS services. Continuing with the above example, the second information may indicate only for MBS1 that the corresponding MBS service configuration information applies to Cell1, but not for MBS2; or, the second information may indicate only for MBS2 that the corresponding MBS service configuration information applies to Cell1 and Cell2, but not for MBS1; or, the second information may indicate the serving cell to which the corresponding MBS service configuration information applies for both MBS1 and MBS2; and for MBS3, the second information may indicate that the corresponding MBS service configuration information does not apply to any serving cell, or may not indicate the serving cell to which the corresponding MBS service configuration information applies.

[0066] It should be noted that the serving cells to which the MBS configuration information indicated by the first information applies (hereinafter referred to as the serving cells indicated by the first information) may be one or more, and the serving cells to which the MBS service configuration information indicated by the second information applies (hereinafter referred to as the serving cells indicated by the second information for the MBS service) may also be one or more. When the indication information includes both the first information and the second information, the serving cells indicated by the first information shall include all serving cells indicated by the second information for the MBS service.

[0067] Based on the above, the UE can receive multicast services based on the MBS configuration information (or based on the MBS service configuration information corresponding to the multicast service) in the service cell to which the MBS configuration information applies (or in the service cell to which the MBS service configuration information corresponding to the multicast service applies) according to the indication information.

[0068] In one embodiment, the indication information includes a cell identifier of the serving cell, where the cell identifier may be a serving cell ID (Cell ID) or a serving cell index (Cell Index).

[0069] In this embodiment, the indication information may include the first information and / or the second information; accordingly, the indication information may include the cell identifier of the serving cell indicated by the first information, and / or the cell identifier of the serving cell indicated by the second information for the MBS service.

[0070] For example, the UE has three serving cells: Cell1, Cell2, and Cell3, and the MBS configuration information is applicable to Cell1 and Cell2. The indication information (first information) may include the cell identifiers of Cell1 and Cell2.

[0071] For another example, there are three different MBS services: MBS1, MBS2 and MBS3. For MBS1, the corresponding MBS service configuration information is applicable to Cell1; for MBS2, the corresponding MBS service configuration information is applicable to Cell1 and Cell2; for MBS3, the corresponding MBS service configuration information is not applicable to any service cell. The indication information (second information) for MBS1 may include the cell identifier of Cell1, which is used to indicate that the corresponding MBS service configuration information of MBS1 is applicable to Cell1; the indication information (second information) for MBS2 may include the cell identifiers of Cell1 and Cell2, which is used to indicate that the corresponding MBS service configuration information for MBS2 is applicable to Cell1 and Cell2; the indication information (second information) for MBS3 may not include the cell identifier of any service cell, indicating that the corresponding MBS service configuration information of MBS3 is not applicable to any cell.

[0072] It should be noted that, when the indication information includes the second information, the second information may include the cell identifier of the service cell indicated for one, multiple or all MBS services, that is, the second information may include the cell identifier of the service cell indicated for each MBS service of the UE, and may also include the cell identifier of the service cell indicated for some MBS services of the UE.

[0073] In one embodiment, the indication information includes a bitmap; the total number of bits in the bitmap is equal to the total number of serving cells of the UE; and each bit in the bitmap corresponds to each serving cell of the user equipment in sequence.

[0074] For example, if a UE has three serving cells: Cell1, Cell2, and Cell3, the bitmap may have three bits: B2B1B0, which are used to indicate whether the MBS configuration information is applicable to the three serving cells, respectively. B2 is the highest bit, and B0 is the lowest bit.

[0075] Each bit in the bitmap corresponds to each serving cell in order. The order includes: each bit in the bitmap is from high to low or from low to high; and / or each serving cell is ranked from small to large or from large to small according to the value of the cell identifier. Based on this, the correspondence between each bit and each serving cell may be in the following four situations:

[0076] Case 1: Each bit in the bitmap corresponds to each serving cell arranged in ascending order according to the cell ID value, that is, B2, B1, and B0 correspond to Cell1, Cell2, and Cell3 respectively;

[0077] Case 2: Each bit in the bitmap corresponds to each serving cell arranged in ascending order according to the cell ID value, that is, B0, B1, and B2 correspond to Cell1, Cell2, and Cell3 respectively;

[0078] Case 3: Each bit in the bitmap corresponds to each serving cell arranged in descending order according to the cell identifier value, that is, B2, B1, and B0 correspond to Cell3, Cell2, and Cell1 respectively (the correspondence between each bit and each serving cell is essentially the same as in Case 2);

[0079] Case 4: Each bit in the bitmap corresponds to each service cell arranged from large to small according to the value of the cell identifier, that is, B0, B1, and B2 correspond to Cell3, Cell2, and Cell1 respectively (the correspondence between each bit and each service cell is essentially the same as in Case 1).

[0080] It should be noted that the indication information may include the first information and / or the second information; accordingly, the indication information may include the bitmap corresponding to the service cell indicated by the first information, and / or the bitmap corresponding to the service cell indicated by the second information for the MBS service.

[0081] Taking the indication information including the bitmap corresponding to the service cell indicated by the first information as an example, the bitmap may be the above three bits: B2B1B0, and the correspondence between each bit and each service cell may be any one of the above cases 1 to 4.

[0082] Taking the indication information including the bitmap corresponding to the serving cell indicated by the second information for the MBS service as an example, the UE has three serving cells: Cell1, Cell2 and Cell3, and three different MBS services: MBS1, MBS2 and MBS3, then the indication information may include a bitmap B for MBS1. 12 B 11 B 10 , where B 12 The most significant bit among the three bits, B 10 The lowest bit among the three bits, the three bits are used to indicate whether the MBS service configuration information corresponding to MBS1 is applicable to the three service cells, where B 12 、B 11 、B 10 The corresponding relationship between Cell1, Cell2 and Cell3 can refer to the above four cases, which will not be repeated here; the indication information may include a bitmap B for MBS2. 22 B 21 B 20 , where B 22 The most significant bit among the three bits, B 20 The lowest bit among the three bits, the three bits are used to indicate whether the MBS service configuration information corresponding to MBS2 is applicable to the three serving cells. 22 、B 21 、B 20 The corresponding relationship between Cell1, Cell2 and Cell3 can refer to the above four cases, which will not be repeated here; the indication information for MBS3 may include a bitmap B 32 B 31 B 30 , where B 32 The most significant bit among the three bits, B 30 The lowest bit among the three bits, the three bits are used to indicate whether the MBS service configuration information corresponding to MBS3 is applicable to the three service cells, where B 32 、B31 、B 30 The corresponding relationships between Cell1, Cell2, and Cell3 can be referred to the above four cases, which will not be repeated here.

[0083] Taking the case where the indication information includes both the bitmap corresponding to the serving cell indicated by the first information and the bitmap corresponding to the serving cell indicated by the second information for the MBS service as an example, the UE has three serving cells: Cell1, Cell2 and Cell3, and three different MBS services: MBS1, MBS2 and MBS3, then the indication information may include the above four bitmaps: B2B1B0, B 12 B 11 B 10 、B 22 B 21 B 20 and B 32 B 31 B 30 The correspondence between each bit in each bitmap and each serving cell can refer to the above four cases and will not be repeated here.

[0084] In one embodiment, for a single bit in the bitmap of the first information: the bit takes a first value, indicating that MBS service configuration information corresponding to at least one MBS service in the MBS configuration information is applicable to the serving cell corresponding to the bit; the bit takes a second value, indicating that MBS service configuration information corresponding to all MBS services in the MBS configuration information is not applicable to the serving cell corresponding to the bit.

[0085] The first value may be 1, and the second value may be 0. Alternatively, the first value may be 0, and the second value may be 1.

[0086] For example, the first information bitmap has three bits: B2B1B0, which are used to indicate whether the MBS configuration information is applicable to three serving cells, Cell1, Cell2, and Cell3. For example, if the first value is 1 and the second value is 0, the MBS configuration information is applicable to Cell1 and Cell2, and the bitmap of the first information can be 110.

[0087] In one embodiment, for a single bit in the bitmap of a single MBS service in the second information: the bit takes the third value, indicating that the MBS service configuration information corresponding to the MBS service is applicable to the service cell corresponding to the bit; the bit takes the fourth value, indicating that the MBS service configuration information corresponding to the MBS service is not applicable to the service cell corresponding to the bit.

[0088] The third value may be 1, and the fourth value may be 0. Alternatively, the third value may be 0, and the fourth value may be 1.

[0089] For example, the UE has three serving cells: Cell1, Cell2 and Cell3, and three different MBS services: MBS1, MBS2 and MBS3. For MBS3, the corresponding MBS service configuration information is not applicable to any serving cell. Taking the first value as 1 and the second value as 0 as an example, the bitmap for MBS1 in the second information is B 12 B 11 B 10 , the three bits are used to indicate whether the MBS configuration information is applicable to the three service cells Cell1, Cell2 and Cell3 respectively. For MBS1, the corresponding MBS service configuration information is applicable to Cell1, then B 12 B 11 B 10 It can be 100; the bitmap for MBS2 in the second information is B 22 B 21 B 20 , the three bits are used to indicate whether the MBS configuration information is applicable to the three service cells Cell1, Cell2 and Cell3 respectively. For MBS2, the corresponding MBS service configuration information is applicable to Cell1 and Cell2, then B 22 B 21 B 20 It can be 110; the bitmap for MBS3 in the second information is B 32 B 31 B 30 , the three bits are used to indicate whether the MBS configuration information is applicable to the three serving cells Cell1, Cell2 and Cell3 respectively. For MBS3, the corresponding MBS service configuration information is not applicable to any cell, then B 32 B 31 B 30 It can be 000.

[0090] In some embodiments, for a single MBS service, if the corresponding MBS service configuration information is not applicable to any cell, for example, for the above-mentioned MBS3, the corresponding MBS service configuration information is not applicable to any cell, then the indication information (second information) may not include the corresponding bitmap (B 32 B 31 B 30 ).

[0091] It can be understood that the bitmap of the first information and the bitmap of the second information for each MBS service satisfy the following condition: each bit in the bitmap of the second information for each MBS service is consistent with each bit in the bitmap of the first information after bitwise OR operation.

[0092] In one embodiment, the MBS service includes a multicast service that can be received by an RRC_INACTIVE user equipment.

[0093] In this embodiment, for a multicast service that can be received by a UE in the RRC_INACTIVE state, the UE may, according to the indication information, receive the multicast service based on the MBS configuration information (or based on the MBS service configuration information corresponding to the multicast service) in the service cell to which the MBS configuration information applies (or in the service cell to which the MBS service configuration information corresponding to the multicast service applies).

[0094] In one embodiment, the indication information and / or MBS configuration information is carried by an RRC connection release message containing suspension configuration information.

[0095] The MBS service in this embodiment primarily refers to a multicast service that can be received by a UE in the RRC_INACTIVE state. The indication information may be carried by an RRC connection release message containing suspend configuration information (RRC Release Message with Suspend Config), and the MBS configuration information may also be carried by an RRC connection release message containing suspend configuration information. The indication information may be included in the MBS configuration information or may be included outside of the MBS configuration information. For example, the indication information may be included in the suspend configuration information of the RRC connection release message.

[0096] In this embodiment, the indication information may be carried by dedicated signaling, and the dedicated signaling carries the indication information and is sent to the UE. The UE obtains the indication information by receiving the dedicated signaling.

[0097] In one embodiment, the indication information is included in the following type of configuration information in the RRC connection release message containing the suspension configuration information: suspension configuration information; MBS configuration information; configuration information other than the suspension configuration information; configuration information other than the MBS configuration information.

[0098] In this embodiment, the RRC connection release message (RRCRelease Message with suspendconfig) includes suspension configuration information and MBS configuration information (for example, MBSMulticastConfiguration message), and the indication information may be included in the suspension configuration information or outside the suspension configuration information, and may also be included in the MBS configuration information or outside the MBS configuration information.

[0099] It should be noted that, in some embodiments, the MBS configuration information may be included in the suspension configuration information, that is, the RRCRelease Message with suspendconfig includes the suspension configuration information, and the suspension configuration information includes the MBS configuration information. In this case, the indication information is included in the MBS configuration information, which can also be understood as the indication information being included in the suspension configuration information but outside the MBS configuration information.

[0100] In one embodiment, the MBS service configuration information corresponding to each MBS service in the MBS configuration information includes at least a service identifier corresponding to each MBS service. The service identifier may be a session identifier (Session ID), a Group-RNTI Radio Network Temporary Identity (G-RNTI), or a Temporary Mobile Group Identity (TMGI).

[0101] In this embodiment, for each MBS service, the MBS service configuration information corresponding to the MBS service includes at least a service identifier of the MBS service, and may also include all or part of the MBS service configuration information corresponding to the MBS service. For example, when the UE transitions from the RRC_CONNECTED state to the RRC_CONNECTED state, for an MBS service received in the RRC_CONNECTED state, the MBS configuration information may not change after the transition to the RRC_CONNECTED state. In this case, the MBS service configuration information corresponding to the MBS service may only include the corresponding service identifier. However, if the MBS configuration information changes, the MBS service configuration information corresponding to the MBS service may also include the changed MBS configuration information (such as changed configuration parameters), or may include all of the MBS service configuration information corresponding to the MBS service.

[0102] In one embodiment, the MBS service includes a multicast service that can be received by a user equipment in the RRC_CONNECTED state. For a multicast service that can be received by a UE in the RRC_CONNECTED state, the UE may, according to the indication information, receive the multicast service in a serving cell to which the MBS configuration information applies (or in a serving cell to which the MBS service configuration information corresponding to the multicast service applies) based on the MBS configuration information (or based on the MBS service configuration information corresponding to the multicast service).

[0103] In one embodiment, the indication information and / or MBS configuration information is carried by an RRC reconfiguration message.

[0104] The MBS service in this embodiment mainly refers to a multicast service that can be received by an RRC_CONNECTED UE. The indication information can be carried by an RRC reconfiguration message, and the MBS configuration information can also be carried by an RRC reconfiguration message.

[0105] In one embodiment, the first information is included in information other than the MBS service configuration information in the MBS configuration information; and / or the second information is included in the MBS service configuration information.

[0106] In this embodiment, the MBS configuration information includes MBS service configuration information (e.g., MBS-SessionInfoListMulticast). The indication information may include first information, which may be included in the MBS configuration information and outside the MBS service configuration information; and second information, which may be included in the MBS service configuration information.

[0107] Exemplarily, in the case where the indication information only includes the first information, the first information is included in the MBS configuration information and is outside the MBS service configuration information. The data structure of the MBS configuration information is as follows:

[0108] Among them, MBSMulticastConfiguration-r18 is MBS configuration information, mbs-Configuration-ApplicableCell-r18 is the first information, and MBS-SessionInfoListMulticast-r18 is MBS service configuration information.

[0109] Exemplarily, when the indication information includes only the second information, the second information is included in the MBS service configuration information. The data structure of the MBS configuration information is as follows:

[0110] Among them, MBSMulticastConfiguration-r18 is MBS configuration information, MBS-SessionInfoListMulticast-r18 is MBS service configuration information, and mbs-SessionConfi,guration-ApplicableCell-r18 is the second information.

[0111] Exemplarily, when the indication information includes the first information and the second information, the first information is included in the MBS configuration information and is outside the MBS service configuration information, and the second information is included in the MBS service configuration information, the data structure of the MBS configuration information is as follows:

[0112] Among them, MBSMulticastConfiguration-r18 is MBS configuration information, mbs-Configuration-ApplicableCell-ri8 is first information, MBS-SessionInfoListMulticast-r18 is MBS service configuration information, and mbs-SessionConfiguration-ApplicableCell-r18 is second information.

[0113] Exemplarily, when the indication information does not include the first information and the second information, the data structure of the MBS configuration information is as follows:

[0114] Among them, MBSMulticastConfiguration-r18 is MBS configuration information, and MBS-SessionInfoListMulticast-r18 is MBS service configuration information.

[0115] It should be noted that the names and data structures of the first and second information in the above data structures are exemplary and may be other names and structures, which are not limited in this embodiment. Furthermore, all parts other than the indication message for indicating the serving cell may be modified and replaced according to actual application scenarios and requirements, which are not limited in this embodiment.

[0116] In one embodiment, for a single MBS service, the priority of the second information is higher than the priority of the first information.

[0117] In this embodiment, for a single MBS service, if the indication information includes second information specific to the MBS service, the second information has a higher priority than the first information. The higher priority of the second information than the first information can be understood as follows: regardless of whether the indication information includes the first information, if the second information indicates a serving cell to which corresponding MBS service configuration information applies for the MBS service, the serving cell indicated by the second information is preferentially used as the serving cell for receiving the MBS service, and the UE can use the MBS service configuration information corresponding to the MBS service to receive the corresponding MBS service in the serving cell.

[0118] As an example, for a single MBS service, the indication information includes the second information but does not include the first information. For example, for MBS1, the indication information does not include the first information, and the second information indicates for MBS1 that the corresponding MBS service configuration information is applicable to Cell1. The UE can then receive MBS1 from Cell1 based on the corresponding MBS service configuration information of MBS1.

[0119] For example, the UE has three service cells: Cell1, Cell2 and Cell3, and three different MBS services: MBS1, MBS2 and MBS3. As an example, for a single MBS service, the indication information includes first information and second information. For example, the first information indicates that the MBS configuration information is applicable to Cell1 and Cell2, the second information indicates for MBS1 that the corresponding MBS service configuration information is applicable to Cell1, and the second information indicates for MBS2 that the corresponding MBS service configuration information is applicable to Cell1 and Cell2. The second information does not indicate any service cell for MBS3. For MBS1, the UE can receive MBS1 from Cell1 based on the corresponding MBS service configuration information of MBS1; for MBS2, the UE can receive MBS2 from Cell1 or Cell2 based on the corresponding MBS service configuration information of MBS2; for MBS3, since the second information does not provide a corresponding indication, the UE can receive MBS3 from Cell1 or Cell2 based on the MBS configuration information according to the indication of the first information, or the UE can also receive MBS3 based on the MBS configuration information from the service cell that has received the MBS configuration information.

[0120] In one embodiment, for a single MBS service, when the indication information does not include the first information and the second information, the serving cell to which the MBS service configuration information corresponding to the MBS service applies is the serving cell that receives the MBS configuration information, or is not applicable to any serving cell.

[0121] For example, for MBS1, the indication information does not include the first information or the second information. In one case, the service cell to which the MBS service configuration information corresponding to MBS1 applies is the service cell in which the UE receives the MBS configuration information. If the UE receives the MBS configuration information in Cell1, the service cell to which the MBS service configuration information corresponding to MBS1 applies is Cell1, and the UE can receive MBS1 from Cell1 based on the MBS service configuration information corresponding to MBS1. In another case, the MBS service configuration information corresponding to MBS1 is not applicable to any service cell, and the UE will not receive MBS1 in any service cell based on the MBS service configuration information corresponding to MBS1.

[0122] In one embodiment, for a single MBS service, when the indication information includes the first information but does not include the second information, the serving cell to which the MBS service configuration information corresponding to the MBS service applies is the serving cell indicated by the first information, or the serving cell that receives the MBS configuration information.

[0123] For example, for MBS1, the indication information includes the first information but does not include the second information. The first information indicates that the service cells to which the MBS configuration information applies are Cell1 and Cell2. In one case, the service cells to which the MBS service configuration information corresponding to MBS1 applies are Cell1 and Cell2. The UE can receive MBS1 from Cell1 or Cell2 based on the MBS configuration information corresponding to MBS1 according to the indication of the first information. In another case, the service cell to which the MBS service configuration information corresponding to MBS1 applies is the service cell that receives the MBS configuration information. If the UE receives the MBS service configuration information in Cell1, the service cell to which the MBS service configuration information corresponding to MBS1 applies is Cell1. The UE can receive MBS1 in Cell1 based on the MBS service configuration information corresponding to MBS1.

[0124] In one embodiment, when the indication information does not include the first information and the second information, or when the indication information is not received, the serving cell to which the MBS configuration information is applicable is the serving cell that receives the MBS configuration information, or is not applicable to any serving cell.

[0125] In this embodiment, the indication information does not include the first information and does not include the second information for any MBS service. For example, if the MBS configuration information does not include the first information or the second information, then in one case, the serving cell to which the MBS configuration information applies is the serving cell that received the MBS configuration information. For example, if the UE receives the MBS service configuration information in Cell 1, the serving cell to which the MBS configuration information applies is Cell 1. In another case, the MBS configuration information does not apply to any serving cell.

[0126] For another example, if the UE does not receive the indication information, then in one case, the serving cell to which the MBS configuration information is applicable is the serving cell that received the MBS configuration information; in another case, the MBS configuration information is not applicable to any serving cell.

[0127] It should be noted that in some scenarios, the serving cell that receives the MBS configuration information may be the UE's only serving cell. For example, when the UE has only one serving cell and the UE does not receive the indication information, the serving cell that receives the MBS configuration information is the only serving cell.

[0128] Figure 2 is a flowchart of a method for receiving indication information provided in an embodiment of the present application. This embodiment is applicable to situations involving the reception of indication information. Specifically, the method for receiving indication information can be performed by an information receiving device, which can be implemented in software and / or hardware and integrated into a user device. It should be noted that details not fully described in this embodiment can be referred to in any of the aforementioned embodiments.

[0129] As shown in FIG2 , the method specifically includes the following steps:

[0130] S210: Receive indication information, where the indication information is used to indicate a serving cell to which MBS configuration information is applicable. The MBS configuration information is used for user equipment to receive MBS services.

[0131] S220: Receive a multicast service in the serving cell to which the MBS configuration information is applicable according to the indication information.

[0132] In this embodiment, indication information is introduced to indicate the serving cell to which the MBS configuration information applies. The MBS configuration information can be understood as specific configuration information for a terminal to receive MBS services, for example, it can include one or more configuration parameters. The serving cell to which the MBS configuration information applies can be understood as a serving cell in which the UE can receive the corresponding MBS service based on the MBS configuration information. It should be noted that the MBS configuration information can apply to one or more serving cells.

[0133] MBS services may include at least one of the following services: multicast services received by UEs in RRC_CONNECTED state, multicast services received by UEs in RRC_INACTIVE state, and broadcast services received by UEs in RRC_CONNECTED, RRC_INACTIVE or RRC idle state (RRC_IDLE).

[0134] In one embodiment, the MBS configuration information may be received together with the indication information, for example, the indication information may be included in the MBS configuration information; the MBS configuration information may also be received separately from the indication information, for example, the indication information may be carried by dedicated signaling, the dedicated signaling may be, for example, an RRC release message containing suspension configuration information, the indication information may be included in the suspension configuration information of the RRC release message, the dedicated signaling may also be an RRC reconfiguration message, or other information, etc., which are not listed here.

[0135] If, according to the prior art, only the MBS configuration information is indicated without indicating the serving cell to which the MBS configuration information applies, the UE may receive MBS services with the MBS configuration information in an inappropriate serving cell because it does not know the serving cell to which the MBS configuration information applies, resulting in packet loss of the MBS service in the serving cell to which the MBS configuration information applies, and unnecessary waste of resources for the UE in the inappropriate serving cell.

[0136] According to the indication information of this embodiment, the network device can indicate to the UE the service cell to which the MBS configuration information applies. The UE can then correctly receive the MBS service in the service cell indicated by the indication information based on the MBS configuration information, thereby avoiding packet loss of the MBS service and reducing power consumption and saving resources.

[0137] In one embodiment, the indication information includes at least one of first information and second information;

[0138] The first information is used to indicate the serving cell to which the MBS configuration information applies;

[0139] The second information is used for indicating, for the MBS service, a serving cell to which the MBS service configuration information corresponding to the MBS service is applicable.

[0140] In one embodiment, the indication information includes a cell identifier of a serving cell.

[0141] In one embodiment, the indication information includes a bitmap;

[0142] The total number of bits in the bitmap is equal to the total number of serving cells of the user equipment;

[0143] Each bit in the bitmap corresponds to each serving cell of the user equipment in sequence.

[0144] In one embodiment, the sequence includes:

[0145] Each bit in the bitmap goes from high to low or vice versa; and / or

[0146] Each serving cell is ranked from small to large or from large to small according to the value of the cell identifier.

[0147] In one embodiment, for a single bit in the bitmap of the first information:

[0148] The bit value is the first value, indicating that the MBS service configuration information corresponding to at least one MBS service in the MBS configuration information is applicable to the serving cell corresponding to the bit;

[0149] The bit value is the second value, indicating that the MBS service configuration information corresponding to all MBS services in the MBS configuration information is not applicable to the serving cell corresponding to the bit;

[0150] For a single bit in the bitmap of the second information:

[0151] The bit value is the third value, indicating that the MBS service configuration information is applicable to the serving cell corresponding to the bit;

[0152] The bit value is the fourth value, indicating that the MBS service configuration information is not applicable to the serving cell corresponding to the bit.

[0153] In one embodiment, the MBS service includes a multicast service that can be received by a user equipment in an RRC inactive state.

[0154] In one embodiment, the indication information and / or MBS configuration information is carried by an RRC connection release message containing suspension configuration information.

[0155] In one embodiment, the indication information is included in one of the following configuration information in the RRC connection release message:

[0156] Suspended configuration information; MBS configuration information; configuration information other than suspended configuration information; configuration information other than MBS configuration information.

[0157] In one embodiment, the MBS service configuration information corresponding to each MBS service in the MBS configuration information at least includes service identifiers corresponding to the MBS services.

[0158] In one embodiment, the MBS service includes a multicast service that can be received by a user equipment in an RRC connected state.

[0159] In one embodiment, the indication information and / or MBS configuration information is carried by an RRC reconfiguration message.

[0160] In one embodiment, the first information is included in the information other than the MBS service configuration information in the MBS configuration information; and / or

[0161] The second information is included in the MBS service configuration information.

[0162] In one embodiment, for a single MBS service, the priority of the second information is higher than the priority of the first information. In this embodiment, for a single MBS service, when the indication information includes the second information, regardless of whether the indication information also includes the first information, the serving cell indicated by the second information may be used as the serving cell applicable to the MBS service configuration information corresponding to the MBS service. The UE may receive the MBS service in the serving cell applicable to the MBS service configuration information corresponding to the MBS service, as indicated by the second information.

[0163] In one embodiment, for a single MBS service, if the indication information does not include the first information and the second information, the serving cell to which the MBS service configuration information corresponding to the MBS service applies is the serving cell that received the MBS configuration information, or is not applicable to any serving cell. In this embodiment, for a single MBS service, if the indication information does not include the first information and the second information, the UE may receive the multicast service based on the MBS configuration information in the serving cell that received the MBS configuration information, or may not receive the multicast service based on the MBS configuration information in any serving cell.

[0164] In one embodiment, for a single MBS service, if the indication information includes the first information but does not include the second information, the serving cell to which the MBS service configuration information corresponding to the MBS service applies is the serving cell indicated by the first information, or the serving cell that received the MBS configuration information. In this embodiment, for a single MBS service, if the indication information includes the first information but does not include the second information, the UE may, as indicated by the first information, receive the multicast service based on the MBS configuration information in the serving cell to which the MBS service configuration information applies, or receive the multicast service based on the MBS configuration information in the serving cell that received the MBS configuration information.

[0165] In one embodiment, if the indication information does not include the first information and the second information, or if the indication information is not received, the serving cell to which the MBS configuration information applies is the serving cell that received the MBS configuration information, or is not applicable to any serving cell. In this embodiment, if the indication information does not include the first information and the second information, the UE may receive the multicast service based on the MBS configuration information in the serving cell that received the MBS configuration information, or may not receive the multicast service based on the MBS configuration information in any serving cell.

[0166] FIG3 is a schematic diagram of the structure of an indication information sending device provided in an embodiment of the present application. As shown in FIG3 , the indication information sending device provided in this embodiment includes:

[0167] A generating module 310 is configured to generate indication information, where the indication information is used to indicate a serving cell to which the MBS configuration information is applicable, and the MBS configuration information is used for a user equipment to receive an MBS service;

[0168] The sending module 320 is configured to send the indication information to the user equipment.

[0169] In one embodiment, the indication information includes at least one of first information and second information;

[0170] The first information is used to indicate the serving cell to which the MBS configuration information is applicable;

[0171] The second information is used to indicate, for an MBS service, a serving cell to which the MBS service configuration information corresponding to the MBS service is applicable.

[0172] In one embodiment, the indication information includes a cell identifier of the serving cell.

[0173] In one embodiment, the indication information includes a bitmap;

[0174] The total number of bits in the bitmap is equal to the total number of serving cells of the user equipment;

[0175] Each bit in the bitmap corresponds to each serving cell of the user equipment in sequence.

[0176] In one embodiment, the sequence includes:

[0177] Each bit in the bitmap is from high to low or from low to high; and / or

[0178] Each serving cell is ranked from small to large or from large to small according to the value of the cell identifier.

[0179] In one embodiment, for a single bit in the bitmap of the first information:

[0180] The bit value is the first value, indicating that MBS service configuration information corresponding to at least one MBS service in the MBS configuration information is applicable to the serving cell corresponding to the bit;

[0181] The bit value is the second value, indicating that the MBS service configuration information corresponding to all MBS services in the MBS configuration information is not applicable to the serving cell corresponding to the bit;

[0182] For a single bit in the bitmap of the second information:

[0183] The bit value is a third value, indicating that the MBS service configuration information is applicable to the serving cell corresponding to the bit;

[0184] The bit value is the fourth value, indicating that the MBS service configuration information is not applicable to the serving cell corresponding to the bit.

[0185] In one embodiment, the MBS service includes a multicast service that can be received by a user equipment in an RRC inactive state.

[0186] In one embodiment, the indication information and / or the MBS configuration information is carried by an RRC connection release message containing suspension configuration information.

[0187] In one embodiment, the indication information is included in the following configuration information in the RRC connection release message:

[0188] Suspend configuration information;

[0189] MBS configuration information;

[0190] Configuration information other than pending configuration information;

[0191] Configuration information other than MBS configuration information.

[0192] In one embodiment, the MBS service configuration information corresponding to each MBS service in the MBS configuration information at least includes service identifiers corresponding to the MBS services.

[0193] In one embodiment, the MBS service includes a multicast service that can be received by a user equipment in an RRC connected state.

[0194] In one embodiment, the indication information and / or the MBS configuration information is carried by an RRC reconfiguration message.

[0195] In one embodiment, the first information is included in information other than MBS service configuration information in the MBS configuration information; and / or

[0196] The second information is included in the MBS service configuration information.

[0197] In one embodiment, for a single MBS service, the priority of the second information is higher than the priority of the first information.

[0198] In one embodiment, for a single MBS service, when the indication information does not include the first information and the second information, the serving cell to which the MBS service configuration information corresponding to the MBS service applies is the serving cell that receives the MBS configuration information, or is not applicable to any serving cell.

[0199] In one embodiment, for a single MBS service, when the indication information includes the first information but does not include the second information, the serving cell to which the MBS service configuration information corresponding to the MBS service applies is the serving cell indicated by the first information, or the serving cell that receives the MBS configuration information.

[0200] In one embodiment, when the indication information does not include the first information and the second information, or when the indication information is not received,

[0201] The serving cell to which the MBS configuration information is applicable is the serving cell that receives the MBS configuration information, or is not applicable to any serving cell.

[0202] The indication information sending device provided in the embodiment of the present application can be used to execute the indication information sending method provided in any of the above embodiments, and has corresponding functions and beneficial effects.

[0203] FIG4 is a schematic diagram of the structure of an indication information receiving device provided in an embodiment of the present application. As shown in FIG4 , the indication information receiving device provided in this embodiment includes:

[0204] An information receiving module 410 is configured to receive indication information, where the indication information is used to indicate a serving cell to which MBS configuration information is applicable, where the MBS configuration information is used by a user equipment to receive MBS services;

[0205] The service receiving module 420 is configured to receive a multicast service in a serving cell to which the MBS configuration information is applicable according to the indication information.

[0206] In one embodiment, the indication information includes at least one of first information and second information;

[0207] The first information is used to indicate the serving cell to which the MBS configuration information is applicable;

[0208] The second information is used to indicate, for an MBS service, a serving cell to which the MBS service configuration information corresponding to the MBS service is applicable.

[0209] In one embodiment, the indication information includes a cell identifier of the serving cell.

[0210] In one embodiment, the indication information includes a bitmap;

[0211] The total number of bits in the bitmap is equal to the total number of serving cells of the user equipment;

[0212] Each bit in the bitmap corresponds to each serving cell of the user equipment in sequence.

[0213] In one embodiment, the sequence includes:

[0214] Each bit in the bitmap is from high to low or from low to high; and / or

[0215] Each serving cell is ranked from small to large or from large to small according to the value of the cell identifier.

[0216] In one embodiment, for a single bit in the bitmap of the first information:

[0217] The bit value is the first value, indicating that MBS service configuration information corresponding to at least one MBS service in the MBS configuration information is applicable to the serving cell corresponding to the bit;

[0218] The bit value is the second value, indicating that the MBS service configuration information corresponding to all MBS services in the MBS configuration information is not applicable to the serving cell corresponding to the bit;

[0219] For a single bit in the bitmap of the second information:

[0220] The bit value is a third value, indicating that the MBS service configuration information is applicable to the serving cell corresponding to the bit;

[0221] The bit value is the fourth value, indicating that the MBS service configuration information is not applicable to the serving cell corresponding to the bit.

[0222] In one embodiment, the MBS service includes a multicast service that can be received by a user equipment in an RRC inactive state.

[0223] In one embodiment, the indication information and / or the MBS configuration information is carried by an RRC connection release message containing suspension configuration information.

[0224] In one embodiment, the indication information is included in the following configuration information in the RRC connection release message:

[0225] Suspend configuration information;

[0226] MBS configuration information;

[0227] Configuration information other than pending configuration information;

[0228] Configuration information other than MBS configuration information.

[0229] In one embodiment, the MBS service configuration information corresponding to each MBS service in the MBS configuration information at least includes service identifiers corresponding to the MBS services.

[0230] In one embodiment, the MBS service includes a multicast service that can be received by a user equipment in a connected state.

[0231] In one embodiment, the indication information and / or the MBS configuration information is carried by an RRC reconfiguration message.

[0232] In one embodiment, the first information is included in information other than MBS service configuration information in the MBS configuration information; and / or

[0233] The second information is included in the MBS service configuration information.

[0234] In one embodiment, for a single MBS service, the priority of the second information is higher than the priority of the first information. In this embodiment, for a single MBS service, when the indication information includes the second information, regardless of whether the indication information also includes the first information, the serving cell indicated by the second information may be used as the serving cell applicable to the MBS service configuration information corresponding to the MBS service. The UE may receive the MBS service in the serving cell applicable to the MBS service configuration information corresponding to the MBS service, as indicated by the second information.

[0235] In one embodiment, for a single MBS service, if the indication information does not include the first information and the second information, the serving cell to which the MBS service configuration information corresponding to the MBS service applies is the serving cell that received the MBS configuration information, or is not applicable to any serving cell. In this embodiment, for a single MBS service, if the indication information does not include the first information and the second information, the UE may receive the multicast service based on the MBS configuration information in the serving cell that received the MBS configuration information, or may not receive the multicast service based on the MBS configuration information in any serving cell.

[0236] In one embodiment, for a single MBS service, if the indication information includes the first information but does not include the second information, the serving cell to which the MBS service configuration information corresponding to the MBS service applies is the serving cell indicated by the first information, or the serving cell that received the MBS configuration information. In this embodiment, for a single MBS service, if the indication information includes the first information but does not include the second information, the UE may, as indicated by the first information, receive the multicast service based on the MBS configuration information in the serving cell to which the MBS service configuration information applies, or receive the multicast service based on the MBS configuration information in the serving cell that received the MBS configuration information.

[0237] In one embodiment, when the indication information does not include the first information and the second information, or when the indication information is not received, the serving cell to which the MBS configuration information applies is the serving cell that received the MBS configuration information, or is not applicable to any serving cell. In this embodiment, the indication information does not include the first information and the second information, and the UE may receive the multicast service based on the MBS configuration information in the serving cell that received the MBS configuration information, or may not receive the multicast service based on the MBS configuration information in any serving cell.

[0238] The indication information receiving device provided in the embodiments of the present application can be used to execute the indication information receiving method provided in any of the above embodiments, and has corresponding functions and beneficial effects.

[0239] 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 information sending method.

[0240] The present application also provides a user 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 information receiving method.

[0241] The present application also provides a computer-readable storage medium, comprising a computer program, which, when executed by a processor, enables the processor to implement any one of the methods.

[0242] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any other combination. When implemented using software, all or part of the embodiments can be implemented 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 a computer, all or part of the processes or functions according to the embodiments of the present application are generated. 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 one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media. 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 (DVD)), or a semiconductor medium (e.g., a solid state drive (SSD)).

[0243] Those skilled 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 beyond the scope of this application.

[0244] The above are only preferred embodiments of the present application and do not limit the embodiments and protection scope of the present application. Those skilled in the art should be able to realize that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of this application should be included in the protection scope of this application.

Claims

1. A method for sending indication information, characterized in that: include: generating indication information, where the indication information is used to indicate a serving cell to which the MBS configuration information is applicable, where the MBS configuration information is used for user equipment to receive an MBS service; The indication information is sent to the user equipment.

2. The method according to claim 1, characterized in that The indication information includes at least one of first information and second information; The first information is used to indicate the serving cell to which the MBS configuration information is applicable; The second information is used to indicate, for an MBS service, a serving cell to which the MBS service configuration information corresponding to the MBS service is applicable.

3. The method according to claim 1, characterized in that The indication information includes the cell identifier of the serving cell.

4. The method according to claim 1, wherein The indication information includes a bitmap; The total number of bits in the bitmap is equal to the total number of serving cells of the user equipment; Each bit in the bitmap corresponds to each serving cell of the user equipment in sequence.

5. The method according to claim 1, wherein The MBS service includes a multicast service that can be received by a user equipment in an RRC inactive state.

6. The method according to claim 5, characterized in that The indication information and / or the MBS configuration information is carried by an RRC connection release message containing the suspension configuration information.

7. The method according to claim 6, characterized in that The indication information is included in the following configuration information in the RRC connection release message: Suspend configuration information; MBS configuration information; Configuration information other than pending configuration information; Configuration information other than MBS configuration information.

8. The method according to claim 5, characterized in that The MBS service configuration information corresponding to each MBS service in the MBS configuration information at least includes service identifiers corresponding to the MBS services.

9. The method according to claim 1, characterized in that MBS services include multicast services that can be received by user equipment in an RRC connected state.

10. The method according to claim 9, characterized in that The indication information and / or the MBS configuration information is carried by an RRC reconfiguration message.

11. The method according to claim 2, characterized in that The first information is included in the information other than the MBS service configuration information in the MBS configuration information; and / or The second information is included in the MBS service configuration information.

12. The method according to claim 2, characterized in that For a single MBS service, the priority of the second information is higher than the priority of the first information.

13. The method according to claim 2, characterized in that For a single MBS service, when the indication information does not include the first information and the second information, the serving cell to which the MBS service configuration information corresponding to the MBS service applies is the serving cell that receives the MBS configuration information, or is not applicable to any serving cell.

14. The method according to claim 2, characterized in that For a single MBS service, when the indication information includes the first information but does not include the second information, the serving cell applicable to the MBS service configuration information corresponding to the MBS service is the serving cell indicated by the first information, or the serving cell that receives the MBS configuration information.

15. The method according to claim 2, characterized in that In a case where the indication information does not include the first information and does not include the second information, or in a case where the indication information is not received, The serving cell to which the MBS configuration information is applicable is the serving cell that receives the MBS configuration information, or is not applicable to any serving cell.

16. A method for receiving indication information, characterized in that: include: receiving indication information, where the indication information is used to indicate a serving cell to which MBS configuration information is applicable, where the MBS configuration information is used by a user equipment to receive an MBS service; A multicast service is received in a serving cell to which the MBS configuration information is applicable according to the indication information.

17. The method according to claim 16, characterized in that The indication information includes at least one of first information and second information; The first information is used to indicate the serving cell to which the MBS configuration information is applicable; The second information is used to indicate, for an MBS service, a serving cell to which the MBS service configuration information corresponding to the MBS service is applicable.

18. The method according to claim 16, characterized in that The indication information includes the cell identifier of the target serving cell.

19. The method according to claim 16, wherein The indication information includes a bitmap; The total number of bits in the bitmap is equal to the total number of serving cells of the user equipment; Each bit in the bitmap corresponds to each serving cell of the user equipment in sequence.

20. The method according to claim 16, wherein The MBS service includes a multicast service that can be received by a user equipment in an RRC inactive state.

21. The method according to claim 20, characterized in that The indication information and / or the MBS configuration information is carried by an RRC connection release message containing the suspension configuration information.

22. The method according to claim 21, characterized in that The indication information is included in the following configuration information in the RRC connection release message: Suspend configuration information; MBS configuration information; Configuration information other than pending configuration information; Configuration information other than MBS configuration information.

23. The method according to claim 20, characterized in that The MBS service configuration information corresponding to each MBS service in the MBS configuration information at least includes service identifiers corresponding to the MBS services.

24. The method according to claim 16, wherein The multicast service includes a multicast service that can be received by a user equipment in an RRC connected state.

25. The method according to claim 24, characterized in that The indication information is carried by the RRC reconfiguration message.

26. The method according to claim 16, wherein The first information is included in the information other than the MBS service configuration information in the MBS configuration information; and / or The second information is included in the MBS service configuration information.

27. The method according to claim 16, wherein For a single MBS service, the priority of the second information is higher than the priority of the first information.

28. The method according to claim 16, wherein For a single MBS service, when the indication information does not include the first information and the second information, the serving cell to which the MBS service configuration information corresponding to the MBS service applies is the serving cell that receives the MBS configuration information, or is not applicable to any serving cell.

29. The method according to claim 16, wherein For a single MBS service, when the indication information includes the first information but does not include the second information, the serving cell applicable to the MBS service configuration information corresponding to the MBS service is the serving cell indicated by the first information, or the serving cell that receives the MBS configuration information.

30. The method according to claim 16, wherein In a case where the indication information does not include the first information and does not include the second information, or in a case where the indication information is not received, the serving cell to which the MBS configuration information is applicable is the serving cell that has received the MBS configuration information.

31. An indication information sending device, characterized in that: include: a generating module, configured to generate indication information, where the indication information is used to indicate a serving cell to which the MBS configuration information is applicable, and the MBS configuration information is used for a user equipment to receive an MBS service; The sending module is used to send the indication information to the user equipment.

32. An indication information receiving device, characterized in that: include: an information receiving module, configured to receive indication information, wherein the indication information is used to indicate a serving cell to which MBS configuration information is applicable, wherein the MBS configuration information is used for user equipment to receive MBS services; The service receiving module is configured to receive a multicast service in a serving cell to which the MBS configuration information is applicable according to the indication information.

33. A network device comprising 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 method for sending indication information according to any one of claims 1 to 15.

34. A user equipment comprising 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 indication information receiving method according to any one of claims 16 to 30.

35. A computer-readable storage medium comprising a computer program, wherein 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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