CN114760595B

CN114760595B - Multicast broadcast service MBS capability indication method, device, equipment and storage medium

Info

Publication number: CN114760595B
Application number: CN202110026534.1A
Authority: CN
Inventors: 周锐; 曾二林
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2023-11-24
Anticipated expiration: 2041-01-08
Also published as: CN114760595A

Abstract

The application provides a method, a device, equipment and a storage medium for indicating the MBS capability of a multicast broadcast service, and belongs to the technical field of communication. The method for the access network side comprises the following steps: transmitting a control message, wherein the control message comprises: and selecting a target cell corresponding to a target PLMN network with MBS capability according to the MBS capability indication information of the multicast broadcast service corresponding to each PLMN network identifier. Therefore, when the terminal equipment needs to receive the MBS service, the PLMN network with MBS capability is selected according to the MBS capability information of the PLMN network provided by the access network side, so that the extra power consumption of the terminal equipment and the establishment time of the MBS service are avoided, and the service processing efficiency of multicast broadcasting is improved.

Description

Multicast broadcast service MBS capability indication method, device, equipment and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a storage medium for indicating MBS capability of a multicast broadcast service.

Background

Currently, MBMS (Multimedia Broadcast Multicast Service ) has long existed in 3g,4g technology as an important service type. However, in the R15 and R16 versions of the 5G NR (New Radio) related art, only unicast services are supported, and based on the importance of MBMS services for certain vertical fields (such as internet of vehicles, public safety), the support of MBMS (MBS in 5G, hereinafter will be collectively referred to as MBS when referring to 5G) is also increased in the R17 version by 5G.

In the related art, the terminal device cannot identify whether a specific PLMN supports MBS service when selecting a network (PLMN selection) or selecting a cell (cell selection), resulting in a defect that the terminal device initiates an MBS service request to a PLMN that does not support MBS.

Disclosure of Invention

The method, the device, the equipment and the storage medium for indicating the multicast broadcast service MBS capability are used for solving the problems that in the related art, terminal equipment cannot identify whether a specific PLMN supports MBS service or not during network selection (PLMN selection) or cell selection (cell selection), thereby initiating MBS service requests to PLMNs which do not support MBS, increasing extra power consumption of the terminal equipment and prolonging the establishment time of MBS service.

The method for indicating the multicast broadcast service MBS capability provided by the embodiment of the first aspect of the application is used for an access network side and comprises the following steps:

transmitting a control message, wherein the control message comprises: each cell supports PLMN network identification and multicast broadcast service MBS capability indication information corresponding to each PLMN network identification.

Optionally, in a first possible implementation manner of the embodiment of the first aspect of the present application, the control message is a radio resource control RRC message.

An embodiment of the second aspect of the present application provides a method for receiving MBS capability indication, where the method is used for a terminal device, and the method includes:

receiving a control message, wherein the control message comprises: PLMN network identifiers supported by each cell and MBS capability indication information corresponding to each PLMN network identifier;

and selecting a target cell corresponding to a target PLMN network with MBS capability according to the MBS capability indication information corresponding to each PLMN network identifier.

Alternatively, in a first possible implementation manner of the embodiment of the second aspect of the present application, the control message is a radio resource control RRC message.

Optionally, in a second possible implementation manner of the embodiment of the second aspect of the present application, the performing, according to the configured multicast service MBS indication window, multicast service MBS indication includes:

The terminal device includes an access layer and a non-access layer, and selects a target cell corresponding to a target PLMN network with MBS capability according to MBS capability indication information corresponding to each PLMN network identifier, including:

the non-access layer receives PLMN network identifiers supported by each cell and MBS capability indication information corresponding to each PLMN network identifier;

the non-access layer selects a target PLMN network with MBS capability according to MBS capability indication information corresponding to each PLMN network identifier, and sends the network identifier of the target PLMN network to the access layer;

and the access layer selects a corresponding target cell according to the network identification of the target PLMN network.

Optionally, in a third possible implementation manner of the embodiment of the second aspect of the present application, the terminal device includes an access layer and a non-access layer, and the selecting, according to MBS capability indication information corresponding to each PLMN network identifier, a target cell corresponding to a target PLMN network with MBS capability includes:

the non-access layer selects the network identification of the candidate PLMN network and sends the network identification to the access layer;

the access layer receives PLMN network identifications supported by each cell and MBS capability indication information corresponding to each PLMN network identification, and detects whether a network corresponding to the network identifications of the candidate PLMN networks is a target PLMN network with MBS capability;

The access layer selects a corresponding target cell according to the network identifier of the candidate PLMN network if detecting that the candidate PLMN network is a target PLMN network with MBS capability;

and if the access layer detects that the candidate PLMN network is not the target PLMN network with MBS capability, selecting the target PLMN network with MBS capability and a corresponding target cell according to MBS capability indication information corresponding to each PLMN network identifier.

Optionally, in a fourth possible implementation manner of the embodiment of the second aspect of the present application, after the selecting a target cell corresponding to the target PLMN network with MBS capability, the method further includes:

adding a multicast service group in the target cell;

and receiving the multicast service data of the multicast service group.

An embodiment of a third aspect of the present application provides an access network side device, including: a memory, transceiver, processor;

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

transmitting a control message, wherein the control message comprises: and each cell supports PLMN network identification and MBS capability indication information corresponding to each PLMN network identification.

Optionally, in a first possible implementation manner of the embodiment of the third aspect of the present application, the control message is a radio resource control RRC message.

An embodiment of a fourth aspect of the present application provides a terminal device, including a memory, a transceiver, and a processor:

Optionally, in a first possible implementation manner of the fourth aspect of the embodiment of the present application, the control message is a radio resource control RRC message.

Optionally, in a second possible implementation manner of the fourth aspect of the embodiment of the present application, the terminal device includes an access layer and a non-access layer, and the selecting, according to MBS capability indication information corresponding to each PLMN network identifier, a target cell corresponding to a target PLMN network with MBS capability includes:

Optionally, in a third possible implementation manner of the fourth aspect of the embodiment of the present application, the terminal device includes an access layer and a non-access layer, and the selecting, according to MBS capability indication information corresponding to each PLMN network identifier, a target cell corresponding to a target PLMN network with MBS capability includes:

Optionally, in a fourth possible implementation manner of the fourth aspect of the present application, after the selecting a target cell corresponding to the target PLMN network with MBS capability, the method further includes:

adding a multicast service group in the target cell;

and receiving the multicast service data of the multicast service group.

An MBS capability indication apparatus for multicast and broadcast service according to an embodiment of the fifth aspect of the present application is configured to access a network side, and includes:

a sending module, configured to send a control message, where the control message includes: each cell supports PLMN network identification and multicast broadcast service MBS capability indication information corresponding to each PLMN network identification.

An MBS capability indication receiving device according to an embodiment of the sixth aspect of the present application is configured to be used in a terminal device, and includes:

A receiving module, configured to receive a control message, where the control message includes: PLMN network identifiers supported by each cell and MBS capability indication information corresponding to each PLMN network identifier;

and the selection module is used for selecting a target cell corresponding to a target PLMN network with MBS capability according to the MBS capability indication information corresponding to each PLMN network identifier.

A processor readable storage medium according to an embodiment of the seventh aspect of the present application stores a computer program thereon, where the computer program is configured to cause the processor to execute the multicast broadcast service MBS capability indication method according to the embodiment of the first aspect of the present application as described above.

A processor readable storage medium according to an embodiment of the eighth aspect of the present application stores a computer program thereon, where the computer program is configured to cause the processor to execute the MBS capability indication receiving method according to the embodiment of the second aspect of the present application as described above.

The method, the device, the equipment and the storage medium for indicating the multicast broadcast service MBS capability provided by the embodiment of the application send the control message through the access network side, wherein the control message comprises the following components: and selecting a target cell corresponding to a target PLMN network with MBS capability according to the MBS capability indication information of the multicast broadcast service corresponding to each PLMN network identifier. Therefore, when the terminal equipment needs to receive the MBS service, the PLMN network with MBS capability is selected according to the MBS capability information of the PLMN network provided by the access network side, so that the extra power consumption of the terminal equipment and the establishment time of the MBS service are avoided, and the service processing efficiency of multicast broadcasting is improved.

Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic diagram of an access network sharing method according to an embodiment of the present application;

fig. 2 is a flowchart of a multicast broadcast service MBS capability indication method according to an embodiment of the present application;

fig. 3 is a flow chart of a receiving method of MBS capability indication according to a second embodiment of the present application;

fig. 4 is a flow chart of a receiving method of MBS capability indication according to a third embodiment of the present application;

fig. 5 is a schematic diagram of a scenario of a receiving method of MBS capability indication according to a third embodiment of the present application;

fig. 6 is a flowchart of a receiving method of MBS capability indication according to a fourth embodiment of the present application;

fig. 7 is a schematic diagram of a scenario of a receiving method of MBS capability indication according to a fourth embodiment of the present application;

fig. 8 is a schematic structural diagram of an access network side device according to a fifth embodiment of the present application;

fig. 9 is a schematic structural diagram of a terminal device according to a sixth embodiment of the present application;

Fig. 10 is a schematic structural diagram of an MBS capability indicator according to a seventh embodiment of the present application;

fig. 11 is a schematic structural diagram of a receiving device for MBS capability indication according to an embodiment of the present application.

Detailed Description

In the embodiment of the application, the term "and/or" describes the association relation of the association objects, which means that three relations can exist, for example, a and/or B can be expressed as follows: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in embodiments of the present application means two or more, and other adjectives are similar.

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In practical application, the MBMS technology under LTE (Long Term Evolution ) only supports relatively static MBMS service transmission, i.e. when a terminal device enters a cell supporting MBMS, only the MBMS service being transmitted in the cell can be received, and under 5G MBS technology, at least for multicast type MBS service, a multicast service transmission area is supported to be adjusted as required, i.e. a cell supporting MBS functions, and whether to establish an MBS data transmission channel with a UPF (User Port Function ) and open MBS data transmission of an air interface can be determined according to the presence or absence of a terminal device interested in the MBS service in a coverage area. I.e. a cell supporting MBS functions, after a first terminal device that needs to receive a specific MBS service enters cell coverage, it may trigger the cell to transmit the MBS service data.

In particular, the most remarkable feature of the multicast service, which is different from the broadcast service, is that the multicast service is only transmitted for a specific group of terminal devices, that is, the terminal devices need to perform a group joining process with a Non-access stratum (NAS) on the network side before receiving the multicast service data.

Therefore, a terminal device that has a need to receive the multicast service needs to reside on a network (PLMN) supporting MBS functions to successfully complete the procedure of joining the MBS service group.

At present, as shown in fig. 1, the manner of sharing (RAN sharing) an access network is understood that the access network sharing function is a basic function supported by both 4G and 5G, that is, the same NG-RAN node may be shared by multiple networks (PLMNs), that is, terminal devices supporting any network (PLMN) that is shared may all connect to a core network of a corresponding network (PLMN) through the NG-RAN radio access network node to complete registration and use services (including MBS services) provided by the core network.

Specifically, the functions supported by different PLMN networks are different, that is, among the multiple PLMN networks shared by NG-RAN nodes, some PLMN networks support MBS functions, and some PLMN networks do not support MBS functions, so if the terminal device decides to initiate a procedure of joining a group (Join group) according to the information about whether the cell supports MBS, it is possible to initiate an unnecessary request of joining an MBS service group to a core network that does not support MBS, and the procedure of joining an MBS service group cannot necessarily succeed, which finally increases extra power consumption of the terminal device and prolongs the setup time of the MBS service.

In order to solve the above problems, the present application sends, at the access network side, the PLMN network identifier supported by each cell and the MBS capability indication information corresponding to each PLMN network identifier, so that after receiving the control message, the terminal device may select, according to the MBS capability indication information corresponding to each PLMN network identifier, a target cell corresponding to a target PLMN network with MBS capability. Therefore, when the terminal equipment needs to receive the MBS service, and when the network selection is carried out, the PLMN network with MBS capability is selected according to the MBS capability indication information of the PLMN network provided by the access network side, so that extra power consumption of the terminal equipment and the establishment time of the MBS service are avoided, and the service processing efficiency of multicast and broadcast is improved.

The method, the device, the equipment and the storage medium for indicating the multicast and broadcast service MBS capability provided by the application are described in detail below with reference to the accompanying drawings.

Fig. 2 is a flowchart of a multicast broadcast service MBS capability indication method according to an embodiment of the present application.

The execution body of the embodiment of the application is the multicast broadcast service MBS capability indicating device provided by the application, and the multicast broadcast service MBS capability indicating device can be configured in any access network side equipment so that the access network side equipment can execute the multicast broadcast service MBS capability indicating function.

The access network side device may be a base station, which may include a plurality of cells for providing services for the terminal device. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The access network side device may be configured to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The access network side device may also coordinate attribute management for the air interface. For example, the access network side device according to the embodiment of the present application may be a network side device (Base Transceiver Station, abbreviated as BTS) in a global system for mobile communications (Global System for Mobile communications, abbreviated as GSM) or code division multiple access (Code Division Multiple Access, abbreviated as CDMA), a network side device (NodeB) in a bandwidth code division multiple access (Wide-band Code Division Multiple Access, abbreviated as WCDMA), an evolved network side device (evolutional Node B, abbreviated as eNB or e-NodeB) in a long term evolution (long term evolution, abbreviated as LTE) system, a 5G base station (abbreviated as gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, abbreviated as HeNB), a relay node (relay node), a home base station (femto), a pico base station (pico), and the like, which are not limited in the embodiment of the present application. In some network structures, the access network side device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

As shown in fig. 2, the method for indicating the MBS capability of a multicast broadcast service is used on an access network side, and includes the following steps:

step 101, sending a control message, wherein the control message comprises: each cell supports PLMN network identification and multicast broadcast service MBS capability indication information corresponding to each PLMN network identification.

In the embodiment of the present application, the receiving network side may acquire a control message including a PLMN network identifier supported by each cell and multicast broadcast service MBS capability indication information corresponding to each PLMN network identifier, where it may be understood that the access network may include one or more cells, and the PLMN networks supported by each cell may be the same or different, and may be used to identify a unique PLMN network through PLMN network identifiers, for example, PLMN network identifier 1, PLMN network identifier 2, and PLMN network identifier 3 are used to identify three different PLMN networks.

In the embodiment of the application, the access network side equipment is shared by a plurality of PLMN networks, so that information of the PLMN networks can be obtained, such as whether the PLMN networks have MBS capability, that is, among the PLMN networks shared with the NG-RAN wireless access network node, some PLMN networks have MBS capability, that is, support MBS functions, and some PLMN networks do not have MBS capability, that is, do not support MBS functions, and corresponding MBS capability indication information can be given to each PLMN network identifier, such as MBS capability indication information corresponding to PLMN network identifier 1 is X, which indicates that the PLMN networks have MBS capability; for example, the MBS capability indication information corresponding to the PLMN network identifier 1 is Y, which indicates that the MBS is not available.

In the embodiment of the present application, there are various forms of control messages, which can be selectively set according to an application scenario, as a possible implementation manner, the control message is a radio resource control RRC (Radio Resource Control) message, where the RRC message includes: PLMN network identifiers supported by each cell, and MBS capability indication information corresponding to each PLMN network identifier.

In the embodiment of the application, the RRC message may have various forms, for example, may be an existing system information block, or a newly added system information block.

In the embodiment of the present application, the existing system information block may be SIB1 (System Information Blocks, system information block 1), where SIB1 carries scheduling that allows access of terminal equipment and other system information in the 5G network, and the control message may be sent in formats such as signaling bearer, transmission channel, physical channel, and the like.

In the embodiment of the application, the Radio Resource Control (RRC) message is sent, so that limited radio network resources can be possibly fully utilized under the condition of meeting the requirement of service quality, and the service capacity and the resource utilization rate are improved.

In the embodiment of the present application, in order to further improve the accuracy of the control message, the RRC message may be only dedicated to transmitting PLMN network identifiers supported by each cell and MBS capability indication information corresponding to each PLMN network identifier.

The multicast broadcast service MBS capability indication method of the embodiment of the application sends the control message through the access network side, wherein the control message comprises the following steps: and selecting a target cell corresponding to a target PLMN network with MBS capability according to the MBS capability indication information corresponding to each PLMN network identifier. Therefore, when the terminal equipment needs to receive the MBS service, the PLMN with MBS capability is selected according to the MBS capability information of the PLMN provided by the access network side during network selection, so that extra power consumption of the terminal equipment and the establishment time of the MBS service are avoided, and the service processing efficiency of multicast and broadcast is improved.

In order to implement the above embodiment, the present application also proposes a receiving method of MBS capability indication.

Fig. 3 is a flowchart of a receiving method of MBS capability indication according to a second embodiment of the present application.

The execution body of the embodiment of the application is the receiving device of the MBS capability indication provided by the application, and the receiving device of the MBS capability indication can be configured in any terminal equipment, so that the terminal equipment can execute the receiving function of the MBS capability indication. The terminal device may specifically be a transmitting terminal device.

In the embodiment of the application, the terminal device may be a device for providing voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN for short), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, for example, portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDA) and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and embodiments of the present application are not limited.

As shown in fig. 3, the method for receiving MBS capability indication, for a terminal device, may include the following steps:

step 201, receiving a control message, wherein the control message includes: each cell supports PLMN network identification and MBS capability indication information corresponding to each PLMN network identification.

In the embodiment of the application, after the access network detects and sends the control message, the terminal equipment receives the control message, wherein the control message comprises PLMN network identifiers supported by each cell and MBS capability indication information corresponding to each PLMN network identifier.

In the embodiment of the application, corresponding MBS capability indication information is given to each PLMN network identifier, for example, the MBS capability indication information corresponding to the PLMN network identifier 1 is X, which indicates that the PLMN network identifier has MBS capability; for example, the MBS capability indication information corresponding to the PLMN network identifier 1 is Y, which indicates that the terminal device does not have MBS capability, so that the terminal device can quickly and accurately determine whether each PLMN network has MBS capability according to the MBS capability indication information.

In the embodiment of the present application, there are various ways in which the access network side sends the control message, and as one possible implementation manner, the radio resource control RRC (Radio Resource Control) message may be sent, so that the terminal device may receive the radio resource control RRC message, where the RRC message includes: PLMN network identifiers supported by each cell, and MBS capability indication information corresponding to each PLMN network identifier.

Step 202, selecting a target cell corresponding to a target PLMN network with MBS capabilities according to MBS capability indication information corresponding to each PLMN network identifier.

In the embodiment of the present application, after acquiring MBS capability indication information corresponding to each PLMN network identifier, the terminal device may select a target cell corresponding to a target PLMN network with MBS capability, where a specific selection manner may be set according to an application scenario, that is, the terminal device includes an Access layer AS (Access Stratum) and a Non-Access layer (NAS), and both the Access layer AS (Access Stratum) and the Non-Access layer (NAS) of the terminal device may acquire control information, which is illustrated below.

In a first example, the non-access layer receives PLMN network identifiers supported by each cell and MBS capability indication information corresponding to each PLMN network identifier, the non-access layer selects a target PLMN network with MBS capability according to the MBS capability indication information corresponding to each PLMN network identifier, and sends the network identifier of the target PLMN network to the access layer, and the access layer selects a corresponding target cell according to the network identifier of the target PLMN network.

In a second example, the non-access stratum selects a network identifier of a candidate PLMN network to be sent to the access stratum, the access stratum receives PLMN network identifiers supported by each cell and MBS capability indication information corresponding to each PLMN network identifier, and detects whether a network corresponding to the network identifier of the candidate PLMN network is a target PLMN network with MBS capability, if the access stratum detects that the candidate PLMN network is the target PLMN network with MBS capability, the access stratum selects a corresponding target cell according to the network identifier of the candidate PLMN network, and if the access stratum detects that the candidate PLMN network is not the target PLMN network with MBS capability, the access stratum selects a target PLMN network with MBS capability and a corresponding target cell according to the MBS capability indication information corresponding to each PLMN network identifier.

According to the MBS capability indication receiving method, control information is received through terminal equipment, and a target cell corresponding to a target PLMN network with MBS capability is selected according to MBS capability indication information corresponding to each PLMN network identifier. Therefore, when the terminal equipment needs to receive the MBS service, the PLMN with MBS capability is selected according to the MBS capability information of the PLMN provided by the access network side during network selection, so that extra power consumption of the terminal equipment and the establishment time of the MBS service are avoided, and the service processing efficiency of multicast and broadcast is improved.

In one possible implementation manner of the embodiment of the present application, the access network side sends a control message to inform the terminal device whether each PLMN network shared by the terminal device has MBS capability, so that the terminal device having a need for receiving MBS capability can select a PLMN network having MBS capability to use MBS service according to needs, and after acquiring the MBS capability indication information, the non-access layer at the terminal device side can select the PLMN network according to the MBS capability indication information, and the following detailed description will be given with reference to embodiment three.

Fig. 4 is a flowchart of a receiving method of MBS capability indication according to a third embodiment of the present application.

As shown in fig. 4, the receiving method of the MBS capability indication may include the steps of:

step 301, receiving a radio resource control RRC message, where the RRC message includes: each cell supports PLMN network identification and MBS capability indication information corresponding to each PLMN network identification.

The execution of step 301 may be referred to the execution of the above embodiment, and will not be described herein.

In step 302, the non-access stratum receives the PLMN network identifier supported by each cell and MBS capability indication information corresponding to each PLMN network identifier.

In step 303, the non-access layer selects a target PLMN network with MBS capabilities according to the MBS capability indication information corresponding to each PLMN network identifier, and sends the network identifier of the target PLMN network to the access layer.

In step 304, the access layer selects a corresponding target cell according to the network identifier of the target PLMN network.

In the embodiment of the application, the terminal equipment comprises an access layer and a non-access layer, wherein the non-access layer receives PLMN network identifications supported by each cell and MBS capability indication information corresponding to each PLMN network identification, then directly selects a PLMN network with MBS capability according to the MBS capability indication information and sends the PLMN network to the access layer, and the access layer selects a corresponding target cell according to the network identification of the target PLMN network.

When the PLMN network identifiers with a plurality of MBS capabilities are included in the MBS capability indication information, a common PLMN network can be selected according to the historical access information of the terminal equipment, or the network identifiers of the target PLMN network can be obtained from the PLMN network identifiers with the plurality of MBS capabilities according to the preset PLMN network access priority and other modes, so that the use requirement of the terminal equipment is further met.

In step 305, a multicast service group is added to the target cell, and multicast service data of the multicast service group is received.

In the embodiment of the application, after the NAS layer of the terminal equipment initiates joining the multicast service group, the terminal equipment receives the multicast service data and improves the service processing efficiency of multicast broadcasting.

AS an example of a scenario, AS shown in fig. 5, the information interaction process of the terminal NAS layer, the terminal AS layer, the access network and the core network is performed.

Specifically, step 1, a non-access stratum NAS of a terminal device triggers a network selection process; step 2, the access layer AS of the terminal equipment which needs to receive MBS business starts searching available PLMN network on the supported frequency band, and acquires MBS capability information of the corresponding PLMN network through RRC message; step 2, after the access stratum AS of the terminal equipment finishes searching available PLMN networks, reporting the searched available PLMN network list and MBS capability information corresponding to each available PLMN network to the non-access stratum NAS of the terminal equipment; step 4, the non-access layer of the terminal equipment selects a network with MBS capability and notifies the network to the terminal access layer on the basis of the traditional network selection strategy by considering the MBS capability information of the network, and the access layer selects a corresponding cell according to the network with MBS capability; and 5, after the terminal equipment resides in the cell, the NAS layer of the terminal initiates a process of joining the MBS service group and receives the multicast service data.

The receiving method of MBS capability indication in the embodiment of the application receives a Radio Resource Control (RRC) message through terminal equipment, wherein the RRC message comprises the following components: the non-access layer receives the PLMN network identifications supported by each cell and the MBS capability indication information corresponding to each PLMN network identification, selects a target PLMN network with MBS capability according to the MBS capability indication information corresponding to each PLMN network identification, sends the network identifications of the target PLMN network to the access layer, selects a corresponding target cell according to the network identifications of the target PLMN network, joins a multicast service group in the target cell, and receives multicast service data of the multicast service group. Therefore, when the terminal equipment needs to receive the MBS service, the PLMN network with MBS capability is selected according to the MBS capability information of the PLMN network provided by the access network side, so that extra power consumption of the terminal equipment and the establishment time of the MBS service are avoided, and the service processing efficiency of multicast broadcasting is improved.

In another possible implementation manner of the embodiment of the present application, the access network side sends a control message to inform the terminal device whether each PLMN network shared by the terminal device has MBS capability, so that the terminal device having a need for receiving MBS capability can select a PLMN network having MBS capability to use MBS service according to needs, and after acquiring the MBS capability indication information, the non-access layer at the terminal device side does not select a PLMN network according to the MBS capability indication information, and selects the PLMN network through the access layer, and the following detailed description will be given with reference to embodiment 4.

Fig. 6 is a flowchart of a receiving method of MBS capability indication according to a fourth embodiment of the present application.

As shown in fig. 6, the receiving method of the MBS capability indication may include the steps of:

step 401, receiving a radio resource control RRC message, wherein the RRC message includes: each cell supports PLMN network identification and MBS capability indication information corresponding to each PLMN network identification.

The execution of step 401 may be referred to the execution of the above embodiment, and will not be described herein.

In step 402, the non-access stratum selects network identifiers of candidate PLMN networks to send to the access stratum.

In step 403, the access layer receives the PLMN network identifiers supported by each cell and the MBS capability indication information corresponding to each PLMN network identifier, and detects whether the network corresponding to the network identifier of the candidate PLMN network is a target PLMN network with MBS capability.

In step 404, if the access layer detects that the candidate PLMN network is a target PLMN network with MBS capability, the access layer selects a corresponding target cell according to the network identifier of the candidate PLMN network.

In step 405, if the access layer detects that the candidate PLMN network is not the target PLMN network with MBS capability, the access layer selects the target PLMN network with MBS capability and the corresponding target cell according to the MBS capability indication information corresponding to each PLMN network identifier.

In the embodiment of the application, the network identifier of the non-access layer selecting candidate PLMN network may or may not have MBS service capability, i.e. the non-access layer does not select the candidate PLMN network according to the MBS capability indication information corresponding to each PLMN network identifier, therefore, the access layer is required to receive the PLMN network identifier supported by each cell and the MBS capability indication information corresponding to each PLMN network identifier, and detect whether the network corresponding to the network identifier of the candidate PLMN network is a target PLMN network with MBS capability, thereby further ensuring that the PLMN network with MBS capability is selected, and avoiding extra power consumption of terminal equipment and the establishment time of MBS service.

In the embodiment of the application, if the access layer detects that the candidate PLMN network is the target PLMN network with MBS capability, the access layer directly selects the corresponding target cell according to the network identifier of the candidate PLMN network, and when the candidate PLMN network is detected that the candidate PLMN network is not the target PLMN network with MBS capability, the access layer selects the target PLMN network with MBS capability and the corresponding target cell according to the MBS capability indication information corresponding to each PLMN network identifier, thereby ensuring that the PLMN network with MBS capability is selected.

Step 406, adding the multicast service group in the target cell, and receiving the multicast service data of the multicast service group.

AS an example of a scenario, AS shown in fig. 7, the information interaction process of the terminal NAS layer, the terminal AS layer, the access network and the core network is performed.

Specifically, step 1, terminal equipment that needs to receive MBS multicast service starts cell selection, and a terminal AS layer has received a candidate network selected by a NAS layer; step 2, the terminal equipment tries to select a proper cell residence, reads a PLMN network list supported by a cell indicated in RRC information of the searched cell and corresponding MBS capability information thereof, judges whether the cell supports a PLMN with MBS capability or an equivalent network (equivalent PLMN) with MBS capability specified by a non-access layer, and selects a cell connected to the specified PLMN or the equivalent network (equivalent PLMN) with MBS capability; step 3, after the terminal equipment resides in the cell, the NAS layer of the terminal initiates a process of joining the MBS service group; and 4, receiving the multicast service data by the terminal equipment.

In the embodiment of the present application, the equivalent network with MBS capability may be understood that the candidate network PLMN1 includes sub-networks a, b and c, where the sub-network a has the same MBS service capability as the candidate network PLMN1, and may select the cell corresponding to the equivalent network, i.e. the sub-network a.

Therefore, the terminal equipment side which is required to receive the multicast service selects a cell connected to the PLMN with MBS capability or an equivalent network (equivalent PLMN) with MBS capability selected by a non-access layer according to the MBS capability indication information of the PLMN provided by the access network side when selecting the cell, and then completes the multicast related signaling flow and starts receiving the multicast service data on the corresponding cell.

The receiving method of MBS capability indication in the embodiment of the application receives a Radio Resource Control (RRC) message through terminal equipment, wherein the RRC message comprises the following components: the method comprises the steps that PLMN network identifications supported by each cell and MBS capability indication information corresponding to each PLMN network identification are sent to an access layer by a non-access layer, the access layer receives the PLMN network identifications supported by each cell and the MBS capability indication information corresponding to each PLMN network identification, detects whether a network corresponding to the network identifications of the candidate PLMN networks is a target PLMN network with MBS capability, if the access layer detects that the candidate PLMN networks are the target PLMN networks with MBS capability, the access layer selects a corresponding target cell according to the network identifications of the candidate PLMN networks, if the access layer detects that the candidate PLMN networks are not the target PLMN networks with MBS capability, the access layer selects the target PLMN networks with MBS capability and the corresponding target cells according to the MBS capability indication information corresponding to each PLMN network identification, adds a multicast service group into the target cell, and receives multicast service data of the multicast service group. Therefore, when the terminal equipment needs to receive the MBS service, the PLMN network with MBS capability is selected according to the MBS capability information of the PLMN network provided by the access network side, so that extra power consumption of the terminal equipment and the establishment time of the MBS service are avoided, and the service processing efficiency of multicast broadcasting is improved.

In order to realize the above embodiment, the application also provides access network side equipment.

Fig. 8 is a schematic structural diagram of an access network device according to a fifth embodiment of the present application.

As shown in fig. 8, the network side device may include: transceiver 800, processor 810, memory 820.

Wherein the memory 820 is used for storing a computer program; a transceiver 800 for transceiving data under the control of the processor 810; a processor 810 for reading the computer program in the memory 820 and performing the following operations: transmitting a control message, wherein the control message comprises: each cell supports PLMN network identification and MBS capability indication information corresponding to each PLMN network identification.

A transceiver 800 for receiving and transmitting data under the control of a processor 810.

Wherein in fig. 8, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 810 and various circuits of memory represented by memory 820, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 800 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. The processor 810 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 810 in performing operations.

The processor 810 may be CPU, ASIC, FPGA or CPLD, and the processor 810 may also employ a multi-core architecture.

In one possible implementation form of the present application, the control message is a radio resource control RRC message, where the RRC message includes: PLMN network identifiers supported by each cell, and MBS capability indication information corresponding to each PLMN network identifier.

Further, in another possible implementation form of the present application, the RRC message is an existing system information block of system information, or a newly added system information block.

It should be noted that, the access network side device provided in the embodiment of the present application can implement all the method steps implemented in the method embodiment of fig. 1, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in the embodiment are omitted herein.

In order to realize the embodiment, the application further provides terminal equipment.

Fig. 9 is a schematic structural diagram of a terminal device according to a sixth embodiment of the present application.

As shown in fig. 9, the terminal device may include: a transceiver 900, a processor 910, a memory 920, and a user interface 930.

Wherein the memory 920 is used for storing a computer program; a transceiver 900 for transceiving data under the control of the processor 910; a processor 910 for reading the computer program in the memory 920 and performing the following operations: receiving a control message, wherein the control message comprises: PLMN network identifiers supported by each cell and MBS capability indication information corresponding to each PLMN network identifier; and selecting a target cell corresponding to a target PLMN network with MBS capability according to the MBS capability indication information corresponding to each PLMN network identifier.

A transceiver 900 for receiving and transmitting data under the control of a processor 910.

Wherein in fig. 9, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 910 and various circuits of memory represented by memory 920, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 900 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including wireless channels, wired channels, optical cables, etc. The user interface 930 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 910 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 910 in performing operations.

Alternatively, the processor 910 may be a central processing unit (Central Processing Unit, CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field-programmable gate array (Field-Programmable Gate Array, FPGA), or a complex programmable logic device (Complex Programmable Logic Device, CPLD), and the processor 910 may also employ a multi-core architecture.

The processor 910 is configured to execute the methods of fig. 2 to 7 provided by the embodiments of the present application according to the obtained executable instructions by calling a computer program stored in a memory. The processor 910 and the memory 920 may also be physically separate.

In one possible implementation form of the application, receiving a control message comprises: receiving a radio resource control, RRC, message, wherein the RRC message includes: PLMN network identifiers supported by each cell, and MBS capability indication information corresponding to each PLMN network identifier.

In one possible implementation form of the present application, the terminal device includes an access layer and a non-access layer, and selects a target cell corresponding to a target PLMN network with MBS capabilities according to MBS capability indication information corresponding to each PLMN network identifier, including: the non-access layer receives PLMN network identifiers supported by each cell and MBS capability indication information corresponding to each PLMN network identifier; the non-access layer selects a target PLMN network with MBS capability according to MBS capability indication information corresponding to each PLMN network identifier, and sends the network identifier of the target PLMN network to the access layer; the access layer selects a corresponding target cell according to the network identification of the target PLMN network.

In one possible implementation form of the present application, the terminal device includes an access layer and a non-access layer, and selects a target cell corresponding to a target PLMN network with MBS capabilities according to MBS capability indication information corresponding to each PLMN network identifier, including: the non-access layer selects the network identification of the candidate PLMN network and sends the network identification to the access layer; the access layer receives PLMN network identifications supported by each cell and MBS capability indication information corresponding to each PLMN network identification, and detects whether a network corresponding to the network identifications of the candidate PLMN networks is a target PLMN network with MBS capability; if the access layer detects and knows that the candidate PLMN network is a target PLMN network with MBS capability, selecting a corresponding target cell according to the network identification of the candidate PLMN network; if the access layer detects and knows that the candidate PLMN network is not the target PLMN network with MBS capability, the access layer selects the target PLMN network with MBS capability and the corresponding target cell according to the MBS capability indication information corresponding to each PLMN network identifier.

In one possible implementation form of the present application, after selecting a target cell corresponding to the MBS-capable target PLMN network, the method further includes: adding a multicast service group in a target cell; multicast service data of a multicast service group is received.

It should be noted that, the terminal device provided in this embodiment of the present application can implement all the method steps implemented in the method embodiments of fig. 2 to fig. 7, and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiments in this embodiment are omitted.

In order to implement the above embodiment, the present application also proposes a multicast broadcast service MBS capability indication apparatus.

Fig. 10 is a schematic structural diagram of an MBS capability indicator according to a seventh embodiment of the present application.

As shown in fig. 10, the MBS capability indication apparatus 1000 for multicast broadcast service is configured to be used in an access network side device, and includes: a transmission module 1001.

Wherein, the sending module 1001 is configured to send a control message, where the control message includes: each cell supports PLMN network identification and multicast broadcast service MBS capability indication information corresponding to each PLMN network identification.

In one possible implementation manner of the present application, the sending module 1001 is specifically configured to: transmitting a Radio Resource Control (RRC) message, wherein the RRC message comprises: PLMN network identifiers supported by each cell, and MBS capability indication information corresponding to each PLMN network identifier.

In one possible implementation of the present application, the RRC message is an existing system information block of system information or a newly added system information block.

It should be noted that, the multicast broadcast service MBS capability indicating device provided by the embodiment of the present application can implement all the method steps implemented by the method embodiment of fig. 1 and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in the embodiment are omitted herein.

In order to implement the above embodiment, the present application also proposes a receiving device for MBS capability indication.

As shown in fig. 11, the MBS capability indication receiving apparatus 1100 is configured to be used for a terminal device, and includes: a receiving module 1101 and a selecting module 1102.

Wherein, the receiving module 1101 is configured to receive a control message, where the control message includes: each cell supports PLMN network identification and MBS capability indication information corresponding to each PLMN network identification.

And a selecting module 1102, configured to select a target cell corresponding to a target PLMN network with MBS capabilities according to the MBS capability indication information corresponding to each PLMN network identifier.

In one possible implementation form of the application, the receiving module 1101 is specifically configured to: receiving a radio resource control, RRC, message, wherein the RRC message includes: PLMN network identifiers supported by each cell, and MBS capability indication information corresponding to each PLMN network identifier.

In one possible implementation form of the present application, the terminal device includes an access layer and a non-access layer, and the selection module 1102 is specifically configured to: the non-access layer receives PLMN network identifications supported by each cell and MBS capability indication information corresponding to each PLMN network identification, the non-access layer selects a target PLMN network with MBS capability according to the MBS capability indication information corresponding to each PLMN network identification, and sends the network identifications of the target PLMN network to the access layer, and the access layer selects a corresponding target cell according to the network identifications of the target PLMN network.

In one possible implementation form of the present application, the terminal device includes an access layer and a non-access layer, and the selection module 1102 is specifically configured to: the non-access layer selects a network identifier of a candidate PLMN network to be sent to the access layer, the access layer receives the PLMN network identifier supported by each cell and MBS capability indication information corresponding to each PLMN network identifier, and detects whether the network corresponding to the network identifier of the candidate PLMN network is a target PLMN network with MBS capability, if the access layer detects that the candidate PLMN network is the target PLMN network with MBS capability, the access layer selects a corresponding target cell according to the network identifier of the candidate PLMN network, if the access layer detects that the candidate PLMN network is not the target PLMN network with MBS capability, the access layer selects the target PLMN network with MBS capability and a corresponding target cell according to the MBS capability indication information corresponding to each PLMN network identifier.

It should be noted that, the receiving device for MBS capability indication provided in the embodiment of the present application can implement all the method steps implemented in the method embodiments of fig. 2 to fig. 7, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiments in the embodiment are omitted.

It should be noted that, in each embodiment of the present application, each functional unit may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or partly in the form of a software product or all or part of the technical solution, where the software product is stored in a storage medium, and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network side device, etc.) or a processor (processor) to perform all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

To achieve the above embodiments, the present application also proposes a processor-readable storage medium.

Wherein the processor-readable storage medium stores a computer program for causing the processor to execute the multicast broadcast service MBS capability indication method according to the embodiment of fig. 1 of the present application.

Among other things, processor-readable storage media can be any available medium or data storage device that can be accessed by a processor, including but not limited to magnetic storage (e.g., floppy disks, hard disks, tapes, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), and semiconductor storage (e.g., ROM, EPROM, EEPROM, nonvolatile storage (NAND FLASH), solid State Disk (SSD)), etc.

Wherein the processor readable storage medium stores a computer program for causing the processor to execute the MBS capability indication reception method according to the embodiments of the present application as described in fig. 2 to 7.

The processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memories (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memories (e.g., CD, DVD, BD, HVD, etc.), semiconductor memories (e.g., ROM, EPROM, EEPROM, nonvolatile memories (NAND FLASH), solid State Disks (SSDs)), etc.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A method for indicating the MBS capability of a multicast broadcast service, wherein the method is applied to an access network side and comprises the following steps:

transmitting a control message, wherein the control message comprises: each cell supports a PLMN network identifier and multicast broadcast service MBS capability indication information corresponding to each PLMN network identifier, wherein the MBS capability indication information is used for indicating whether a PLMN network corresponding to the MBS capability indication information has MBS capability or not;

the control message is a Radio Resource Control (RRC) message, and the RRC message is dedicated to sending PLMN network identifiers supported by each cell and MBS capability indication information corresponding to each PLMN network identifier.

2. A method for receiving MBS capability indication, wherein the method is applied to a terminal device and comprises:

receiving a control message, wherein the control message comprises: each cell supports PLMN network identification and MBS capability indication information corresponding to each PLMN network identification, wherein the MBS capability indication information is used for indicating whether a PLMN network corresponding to the MBS capability indication information has MBS capability;

selecting a target cell corresponding to a target PLMN network with MBS capability according to MBS capability indication information corresponding to each PLMN network identifier;

3. The method of claim 2, wherein the terminal device includes an access layer and a non-access layer, and the selecting the target cell corresponding to the MBS-capable target PLMN network according to the MBS capability indication information corresponding to each PLMN network identification includes:

4. The method of claim 2, wherein the terminal device includes an access layer and a non-access layer, and the selecting the target cell corresponding to the MBS-capable target PLMN network according to the MBS capability indication information corresponding to each PLMN network identification includes:

5. The method according to any one of claims 2-4, further comprising, after said selecting a target cell corresponding to an MBS-capable target PLMN network:

adding a multicast service group in the target cell;

and receiving the multicast service data of the multicast service group.

6. An access network side device, comprising a memory, a transceiver, and a processor;

transmitting a control message, wherein the control message comprises: each cell supports PLMN network identification and MBS capability indication information corresponding to each PLMN network identification, wherein the MBS capability indication information is used for indicating whether a PLMN network corresponding to the MBS capability indication information has MBS capability;

7. A terminal device comprising a memory, a transceiver, and a processor:

8. The terminal device of claim 7, wherein the terminal device includes an access layer and a non-access layer, and the selecting the target cell corresponding to the MBS-capable target PLMN network based on the MBS capability indication information corresponding to each PLMN network identification includes:

9. The terminal device of claim 7, wherein the terminal device includes an access layer and a non-access layer, and the selecting the target cell corresponding to the MBS-capable target PLMN network based on the MBS capability indication information corresponding to each PLMN network identification includes:

10. The terminal device according to any of claims 7-9, further comprising, after said selecting a target cell corresponding to an MBS-capable target PLMN network:

adding a multicast service group in the target cell;

and receiving the multicast service data of the multicast service group.

11. A multicast broadcast service MBS capability indication apparatus, configured to access a network side, comprising:

A sending module, configured to send a control message, where the control message includes: each cell supports a PLMN network identifier and multicast broadcast service MBS capability indication information corresponding to each PLMN network identifier, wherein the MBS capability indication information is used for indicating whether a PLMN network corresponding to the MBS capability indication information has MBS capability or not;

12. A receiving apparatus for MBS capability indication, comprising:

a receiving module, configured to receive a control message, where the control message includes: each cell supports PLMN network identification and MBS capability indication information corresponding to each PLMN network identification, wherein the MBS capability indication information is used for indicating whether a PLMN network corresponding to the MBS capability indication information has MBS capability;

a selection module, configured to select a target cell corresponding to a target PLMN network with MBS capability according to MBS capability indication information corresponding to each PLMN network identifier;

13. A processor-readable storage medium, wherein the processor-readable storage medium stores a computer program for causing the processor to execute the multicast broadcast service MBS capability indication method of claim 1 or for causing the processor to execute the reception method of the MBS capability indication of any of claims 2 to 5.