CN116261877A

CN116261877A - MBS service configuration method and device, network equipment and terminal equipment

Info

Publication number: CN116261877A
Application number: CN202080105300.XA
Authority: CN
Inventors: 王淑坤
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2023-06-13
Also published as: WO2022141255A1

Abstract

The embodiment of the application provides a method and a device for configuring MBS service, network equipment and terminal equipment, wherein the method comprises the following steps: the method comprises the steps that a first cell receives information of a first MBS service sent by a second cell, wherein the first MBS service is an MBS service expected by terminal equipment or an MBS service being received; and the first cell determines MBS service configuration information according to the information of the first MBS service and sends the MBS service configuration information to the terminal equipment through a switching command.

Description

MBS service configuration method and device, network equipment and terminal equipment

Technical Field

The embodiment of the application relates to the technical field of mobile communication, in particular to a method and a device for configuring multicast broadcast service (Multicast Broadcast Service, MBS) service, network equipment and terminal equipment.

Background

In a New Radio (NR) system, a broadcast type MBS service is supported, and a terminal device may receive the broadcast MBS service in a Radio resource control (Radio Resource Control, RRC) idle state, or an RRC inactive state, or an RRC connected state.

For the terminal equipment in the RRC connected state, cell switching occurs when the MBS service is received, and the terminal equipment needs to re-read a system broadcast message or multicast control channel (Multicast Control Channel, MCCH) signaling in the target cell to obtain configuration information of the MBS service, so as to continuously receive the MBS service, thereby increasing an interruption delay of the MBS service to a certain extent.

Disclosure of Invention

The embodiment of the application provides a method and a device for configuring MBS service, network equipment and terminal equipment.

The MBS service configuration method provided by the embodiment of the application comprises the following steps:

the method comprises the steps that a first cell receives information of a first MBS service sent by a second cell, wherein the first MBS service is an MBS service expected by terminal equipment or an MBS service being received;

and the first cell determines MBS service configuration information according to the information of the first MBS service and sends the MBS service configuration information to the terminal equipment through a switching command.

the terminal equipment sends information of a first MBS service to a second cell, wherein the first MBS service is an MBS service expected by the terminal equipment or an MBS service being received; the information of the first MBS service is forwarded to a first cell by the second cell;

The terminal equipment receives a switching command sent by the first cell, wherein the switching command carries MBS service configuration information, and the MBS service configuration information is determined based on the information of the first MBS service.

The configuration device of MBS service provided by the embodiment of the application is applied to the network equipment corresponding to the first cell,

the device comprises:

a receiving unit, configured to receive information of a first MBS service sent by a second cell, where the first MBS service is an MBS service expected by a terminal device or an MBS service being received;

a determining unit, configured to determine MBS service configuration information according to the information of the first MBS service;

and the sending unit is used for sending the MBS service configuration information to the terminal equipment through a switching command.

The configuration device of MBS business provided by the embodiment of the application is applied to terminal equipment, and the device comprises:

a sending unit, configured to send information of a first MBS service to a second cell, where the first MBS service is an MBS service expected by a terminal device or an MBS service being received; the information of the first MBS service is forwarded to a first cell by the second cell;

and the receiving unit is used for receiving a switching command sent by the first cell, wherein the switching command carries MBS service configuration information, and the MBS service configuration information is determined based on the information of the first MBS service.

The network device provided by the embodiment of the application comprises a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the configuration method of the MBS service.

The terminal equipment provided by the embodiment of the application comprises a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the configuration method of the MBS service.

The chip provided by the embodiment of the application is used for realizing the configuration method of the MBS service.

Specifically, the chip includes: and the processor is used for calling and running the computer program from the memory, so that the device provided with the chip executes the MBS service configuration method.

The computer readable storage medium provided in the embodiments of the present application is configured to store a computer program, where the computer program makes a computer execute the above-mentioned method for configuring MBS service.

The computer program product provided by the embodiment of the application comprises computer program instructions, and the computer program instructions enable a computer to execute the configuration method of the MBS service.

The computer program provided in the embodiment of the present application, when running on a computer, causes the computer to execute the above-mentioned configuration method of MBS service.

Through the technical scheme, the terminal equipment sends the information of the first MBS service to the second cell (namely the original cell switched), wherein the first MBS service is the MBS service expected by the terminal equipment or the MBS service being received, the second cell forwards the information of the first MBS service to the first cell (namely the target cell switched), and the first cell determines MBS service configuration information according to the information of the first MBS service and sends the MBS service configuration information to the terminal equipment through a switching command. The terminal equipment can directly acquire the MBS service configuration information from the switching command in the switching process without waiting for acquiring the MBS service configuration information from the system broadcast message or the MCCH signaling of the first cell after switching to the first cell, thereby reducing the interruption time delay of the MBS service in the switching process.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

Fig. 1 is a schematic diagram of a communication system architecture provided in an embodiment of the present application;

fig. 2 is a flow chart of a method for configuring MBS service according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a configuration device for MBS service according to an embodiment of the present application;

fig. 4 is a schematic diagram ii of the structural composition of the MBS service configuration device according to the embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

FIG. 6 is a schematic block diagram of a chip of an embodiment of the present application;

fig. 7 is a schematic block diagram of a communication system provided in an embodiment of the present application.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The technical solution of the embodiment of the application can be applied to various communication systems, for example: long term evolution (Long Term Evolution, LTE) systems, LTE frequency division duplex (Frequency Division Duplex, FDD) systems, LTE time division duplex (Time Division Duplex, TDD), systems, 5G communication systems, future communication systems, or the like.

Exemplary, a communication system 100 to which embodiments of the present application apply is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal 120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminals located within the coverage area. Alternatively, the network device 110 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in the LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future communication system, etc.

The communication system 100 further includes at least one terminal 120 located within the coverage area of the network device 110. "terminal" as used herein includes, but is not limited to, connection via wireline, such as via public-switched telephone network (Public Switched Telephone Networks, PSTN), digital subscriber line (Digital Subscriber Line, DSL), digital cable, direct cable connection; and/or another data connection/network; and/or via a wireless interface, e.g., for a cellular network, a wireless local area network (Wireless Local Area Network, WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and/or means of the other terminal arranged to receive/transmit communication signals; and/or internet of things (Internet of Things, ioT) devices. Terminals arranged to communicate over a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellites or cellular telephones; a personal communications system (Personal Communications System, PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a global positioning system (Global Positioning System, GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal in a 5G network or a terminal in a future evolved PLMN, etc.

Alternatively, direct to Device (D2D) communication may be performed between the terminals 120.

Alternatively, the 5G communication system or 5G network may also be referred to as a New Radio (NR) system or NR network.

Fig. 1 illustrates one network device and two terminals, alternatively, the communication system 100 may include multiple network devices and each network device may include other numbers of terminals within a coverage area, which is not limited in this embodiment.

Optionally, the communication system 100 may further include a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that a device having a communication function in a network/system in an embodiment of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal 120 with communication functions, where the network device 110 and the terminal 120 may be specific devices described above, and are not described herein again; the communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the following describes the technical solutions related to the embodiments of the present application.

With the pursuit of speed, delay, high speed mobility, energy efficiency and diversity and complexity of future life business, the third generation partnership project (3 ^rd Generation Partnership Project,3 GPP) international standards organization began developing 5G. The main application scenario of 5G is: enhanced mobile Ultra-wideband (enhanced Mobile Broadband, emmbb), low latency high reliability communications (URLLC), large scale Machine-like communications (massive Machine-Type Communications,mMTC)。

on the one hand, embbs still target users to obtain multimedia content, services and data, and their demand is growing very rapidly. On the other hand, since an eMBB may be deployed in different scenarios, such as indoors, urban, rural, etc., its capabilities and requirements are also quite different, so that detailed analysis must be performed in connection with a specific deployment scenario, not in general. Typical applications of URLLC include: industrial automation, electric power automation, remote medical operation (surgery), traffic safety guarantee and the like. Typical characteristics of mctc include: high connection density, small data volume, delay insensitive traffic, low cost and long service life of the module, etc.

At early deployment of NRs, full NR coverage is difficult to acquire, so typical network coverage is wide area LTE coverage and island coverage mode of NRs. And a large amount of LTE is deployed below 6GHz, and the frequency spectrum below 6GHz which can be used for 5G is few. NR must study spectral applications above 6GHz while high-band coverage is limited and signal fading is fast. Meanwhile, in order to protect the mobile operators from early investment in LTE, a working mode of tight coupling (tight interworking) between LTE and NR is proposed.

RRC state

5G for the purposes of reducing air interface signaling and fast recovery of radio connections, fast recovery of data traffic, a new radio resource control (Radio Resource Control, RRC) state, namely an RRC INACTIVE (RRC_INACTIVE) state, is defined. This state is different from the RRC IDLE (rrc_idle) state and the RRC ACTIVE (rrc_active) state. Wherein,

1) Rrc_idle state (simply referred to as IDLE state): mobility is UE-based cell selection reselection, paging is initiated by a Core Network (CN), and paging areas are configured by the CN. The base station side has no UE context and no RRC connection.

2) Rrc_connected state (CONNECTED state for short): there is an RRC connection and UE contexts on the base station side and UE side. The network side knows that the location of the UE is cell specific. Mobility is network-side controlled mobility. Unicast data may be transmitted between the UE and the base station.

3) Rrc_inactive state (simply referred to as INACTIVE state): mobility is cell selection reselection based on UE, there is a connection between CN-NRs, UE context exists on a certain base station, paging is triggered by RAN, paging area based on RAN is managed by RAN, network side knows UE location is based on paging area level of RAN.

Multimedia broadcast multicast service (Multimedia Broadcast Multicast Service, MBMS)

MBMS is a technology for transmitting data from one data source to a plurality of terminal equipments through a shared network resource, which can effectively utilize the network resource while providing a multimedia service, and realize broadcasting and multicasting of a multimedia service of a higher rate (e.g., 256 kbps).

Due to the low MBMS spectrum efficiency, it is not sufficient to effectively carry and support the operation of the mobile tv type service. In LTE, 3GPP has therefore explicitly proposed to enhance the support capability for the downlink high speed MBMS service and to determine the design requirements for the physical layer and the air interface.

The 3gpp R9 introduces evolved MBMS (eMBMS) into LTE. eMBMS proposes the concept of a single frequency network (Single Frequency Network, SFN), i.e. a multimedia broadcast multicast service single frequency network (Multimedia Broadcast multicast service Single Frequency Network, MBSFN), wherein the MBSFN uses a unified frequency to simultaneously transmit traffic data in all cells, but synchronization between the cells is guaranteed. The method can greatly improve the overall signal-to-noise ratio distribution of the cell, and the frequency spectrum efficiency can be correspondingly and greatly improved. eMBMS implements broadcast and multicast of services based on IP multicast protocols.

In LTE or LTE-Advanced (LTE-a), MBMS has only a broadcast bearer mode and no multicast bearer mode. In addition, the reception of the MBMS service is applicable to terminal devices in an idle state or a connected state.

A single cell point-to-multipoint (Single Cell Point To Multiploint, SC-PTM) concept is introduced in 3gpp r13, SC-PTM being based on the MBMS network architecture.

MBMS introduces new logical channels including Single Cell multicast control channel (SC-MCCH) and Single Cell multicast transport channel (SC-MTCH) and Single Cell-Multicast Transport Channel. The SC-MCCH and SC-MTCH are mapped onto a Downlink-Shared Channel (DL-SCH), and further, the DL-SCH is mapped onto a physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH), wherein the SC-MCCH and SC-MTCH belong to a logical Channel, the DL-SCH belongs to a transport Channel, and the PDSCH belongs to a physical Channel. The SC-MCCH and SC-MTCH do not support hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) operation.

MBMS introduces a new system information block (System Information Block, SIB) type, SIB20. Specifically, the configuration information of the SC-MCCH is transmitted through the SIB20, and one cell has only one SC-MCCH. The configuration information of the SC-MCCH comprises: the modification period of the SC-MCCH, the repetition period of the SC-MCCH, the radio frame and subframe for scheduling the SC-MCCH and other information. Further, 1) the boundary of the modification period of the SC-MCCH satisfies SFN mod m=0, where SFN represents a system frame number of the boundary, and m is a modification period (i.e., SC-MCCH-modification period) of the SC-MCCH configured in SIB20. 2) The radio frame of the scheduling SC-MCCH meets the following conditions: SFN mod MCCH-repetition period = MCCH-Offset, where SFN represents the system frame number of the radio frame, MCCH-repetition period represents the repetition period of the SC-MCCH, and MCCH-Offset represents the Offset of the SC-MCCH. 3) The subframes of the scheduling SC-MCCH are indicated by SC-MCCH-Subframe.

The SC-MCCH is scheduled through a physical downlink control channel (Physical Downlink Control Channel, PDCCH). In one aspect, a new radio network temporary identity (Radio Network Tempory Identity, RNTI), i.e., single Cell RNTI (SC-RNTI), is introduced to identify a PDCCH (e.g., SC-MCCH PDCCH) for scheduling the SC-MCCH, optionally with the SC-RNTI fixed value FFFC. On the other hand, a new RNTI, i.e., a single cell notification RNTI (Single Cell Notification RNTI, SC-N-RNTI) is introduced to identify a PDCCH (e.g., notification PDCCH) for indicating a change notification of the SC-MCCH, optionally, the SC-N-RNTI is fixed to a value of FFFB; further, the change notification may be indicated with one bit of 8 bits (bits) of DCI 1C. In LTE, the configuration information of SC-PTM is based on the SC-MCCH configured by SIB20, and then SC-MCCH configures SC-MTCH for transmitting service data.

Specifically, the SC-MCCH transmits only one message (i.e., scptm configuration) for configuring configuration information of the SC-PTM. The configuration information of the SC-PTM comprises: temporary mobile Group identity (Temporary Mobile Group Identity, TMGI), session identity (session id), group RNTI (G-RNTI), discontinuous reception (Discontinuous Reception, DRX) configuration information, SC-PTM service information of neighbor cells, and the like. Note that SC-PTM in R13 does not support the robust header compression (Robust Header Compression, ROHC) function.

The downlink discontinuous reception of the SC-PTM is controlled by the following parameters: onDurationTimerSCPTM, drx-InactivityTimerSCPTM, SC-MTCH-scheduling cycle, and SC-MTCH-scheduling offset.

When [ (SFN 10) +subframe number ] module (SC-MTCH-scheduling cycle) =sc-MTCH-scheduling offset is satisfied, a timer ondurationtimerscpm is started;

when receiving downlink PDCCH scheduling, starting a timer drx-InactivityTimerSCPTM;

the downstream SC-PTM service is received only when the timer onduration timerscpm or drx-incaactyitimerscpm is running.

The SC-PTM service continuity adopts the MBMS service continuity concept based on SIB15, namely a mode of SIB15 and MBMSInterestindication. The traffic continuity of the terminal device in idle state is based on the concept of frequency priority.

In NR systems, many scenarios require support of multicast and broadcast traffic demands, such as in the internet of vehicles, industrial internet, etc. It is necessary to introduce MBMS in the NR. As can be seen from the above description, the configuration of the SC-PTM configures the SC-MCCH based on SIB20, and then configures the SC-MTCH based on the SC-MCCH, on which the service data is transmitted. One cell has and only one SC-MCCH.

It should be noted that, the MBMS service in the above scheme includes, but is not limited to, a multicast service, an MBS service, and the like. The embodiment of the application is described by taking an MBS service as an example, and the description of the "MBS service" may be replaced by a "multicast service" or a "broadcast service" or a "MBMS service".

In the NR system, the broadcast type MBS service is supported, and the terminal equipment can receive the broadcast MBS service in the RRC idle state, the RRC inactive state or the RRC connection state.

For the terminal equipment in the RRC connected state, cell switching occurs when the MBS service is received, and the terminal equipment needs to re-read a system broadcast message or multicast control channel (Multicast Control Channel, MCCH) signaling in the target cell to obtain configuration information of the MBS service, so as to continuously receive the MBS service, thereby increasing an interruption delay of the MBS service to a certain extent. For this reason, the following technical solutions of the embodiments of the present application are proposed. According to the technical scheme of the embodiment of the application, a configuration method of MBS service is provided, and cell switching occurs when the terminal equipment in RRC connection state receives the broadcasted MBS service, so that interruption time delay of the MBS service caused by switching can be reduced.

In the technical solution of the embodiment of the present application, a new SIB (referred to as a first SIB) is defined, where the first SIB includes configuration information of a first MCCH, where the first MCCH is a control channel of an MBS service, in other words, the first SIB is used to configure configuration information of a control channel of an NR MBS, alternatively, the control channel of the NR MBS may also be referred to as an NR MCCH (i.e. the first MCCH).

Further, the first MCCH is used to carry the first signaling, and in the embodiment of the present application, the name of the first signaling is not limited, for example, the first signaling is signaling a, where the first signaling includes configuration information of at least one first MTCH, where the first MTCH is a traffic channel (also referred to as a data channel or a transmission channel) of an MBS service, and the first MTCH is used to transmit MBS service data (such as service data of an NR MBS). In other words, the first MCCH is used to configure configuration information of a traffic channel of the NR MBS, alternatively, the traffic channel of the NR MBS may also be called as NR MTCH (i.e. the first MTCH).

Specifically, the first signaling is used for configuring a service channel of the NR MBS, service information corresponding to the service channel, and scheduling information corresponding to the service channel. Further optionally, the service information corresponding to the service channel, for example, TMGI, session id, and other identification information for identifying the service. Scheduling information corresponding to the service channel, for example, RNTI used when MBS service data corresponding to the service channel is scheduled, for example, G-RNTI, DRX configuration information, and the like.

The transmissions of the first MCCH and the first MTCH are scheduled based on the PDCCH. The RNTI used for scheduling the PDCCH of the first MCCH uses a unique network identifier, i.e. a fixed value. The RNTI used for scheduling PDCCH use of the first MTCH is configured through the first MCCH.

It should be noted that, in the embodiment of the present application, the naming of the first SIB, the first MCCH and the first MTCH is not limited. For convenience of description, the first SIB may also be simply referred to as SIB, the first MCCH may also be simply referred to as MCCH, and the first MTCH may also be simply referred to as MTCH, and a PDCCH (i.e. MCCH PDCCH) for scheduling the MCCH and a notification PDCCH are configured through SIB, where a PDSCH (i.e. MCCH PDSCH) for transmitting the MCCH is scheduled through DCI carried in MCCH PDCCH. Further, M PDCCHs for scheduling MTCH (i.e., MTCH 1PDCCH, MTCH 2PDCCH, …, MTCH M PDCCH) are configured through the MCCH, wherein DCI carried by MTCH n PDCCH schedules PDSCH for transmitting MTCH n (i.e., MTCH n PDSCH), n being an integer greater than or equal to 1 and less than or equal to M. The MCCH and the MTCH are mapped to the DL-SCH, and further, the DL-SCH is mapped to the PDSCH, wherein the MCCH and the MTCH belong to a logical channel, the DL-SCH belongs to a transport channel, and the PDSCH belongs to a physical channel.

Fig. 2 is a flow chart of a method for configuring MBS services according to an embodiment of the present application, as shown in fig. 2, where the method for configuring MBS services includes the following steps:

step 201: the terminal equipment sends information of a first MBS service to the second cell, wherein the first MBS service is an MBS service expected by the terminal equipment or an MBS service being received.

In this embodiment of the present application, the first cell is a target cell for handover, and the second cell is a source cell for handover.

It should be noted that, in the embodiments of the present application, the description of the "first cell" may be replaced by the "first base station", and the description of the "second cell" may be replaced by the "second base station". The first base station is a target base station for switching, and the second base station is an original base station for switching.

In this embodiment of the present application, before handover, the terminal device sends information of the first MBS service to the second cell, where the first MBS service is an MBS service expected by the terminal device or an MBS service being received. It should be noted that, the MBS service expected by the terminal device may also be referred to as an MBS service of interest to the terminal device.

In an alternative manner, the terminal device may send the information of the first MBS service to the second cell during the initial access to the second cell or after accessing the second cell and entering the RRC connection state. Here, the first MBS service may be an MBS service expected by the terminal apparatus in a previous RRC inactive state or idle state, and may also be referred to as an MBS service of interest to the terminal apparatus. Alternatively, the first MBS service may also be an MBS service expected by the terminal device in the RRC connected state, and may also be referred to as an MBS service of interest to the terminal device.

In this embodiment of the present application, the terminal device sends the information of the first MBS service to the second cell, which may be implemented in the following manner: and the terminal equipment sends RRC signaling to the second cell, wherein the RRC signaling carries the information of the first MBS service.

In an alternative, the RRC signaling may be new RRC signaling. Here, the new RRC signaling refers to different from the existing RRC signaling. The terminal device sends the information of the first MBS service through the new RRC signaling, and in this case, the information of the first MBS service is loaded in the new RRC signaling.

In another alternative, the RRC signaling may be existing RRC signaling. The terminal device sends the information of the first MBS service through the existing RRC signaling, and in this case, the information of the first MBS service is loaded in the existing RRC signaling.

In one example, the RRC signaling is one of: UE assistance information (UE assistance information) message; a secure activation complete (secure modecomplete) message; RRC setup complete (rrcsetup complete) message; RRC resume complete (RRCResumeComplete) message; RRC reestablishment complete (rrcreestablischentcomplete) message; RRC reconfiguration complete (rrcrecon configuration complete) message.

In this embodiment of the present application, the information of the first MBS service includes at least one of the following:

identification information of a first MBS service;

frequency point information of a first MBS service;

bandwidth Part (BWP) information of the first MBS service;

subcarrier spacing (SCS) information of the first MBS service;

priority information of the first MBS service.

In one example, the identification information of the first MBS service includes at least one of: TMGI, session identity, G-RNTI.

In one example, the frequency point information of the first MBS service is, for example, ARFCN Value of NR (ARFCN-Value). Here, ARFCN represents absolute radio channel number (Absolute Radio Frequency Channel Number).

In one example, the BWP information of the first MBS service includes at least one of: configuration information of BWP, an indication information for indicating whether the bandwidth of the first MBS service is the bandwidth of CSS #0 or the bandwidth of initial BWP (initial BWP) configured in SIB1, where CSS represents a common search space (Common Search Space), and CSS #0 represents the common search space for initial access.

In one example, the priority information of the first MBS service is used to determine whether the priority of the first MBS service is higher (or lower) than the multicast mode transmitted service and/or the unicast mode transmitted service.

Step 202: the first cell receives information of a first MBS service sent by the second cell.

In this embodiment of the present application, when the network side determines that the terminal device has cell handover, the original cell (i.e., the second cell) of the handover forwards the information of the first MBS service reported by the terminal device to the target cell (i.e., the first cell). That is, the information of the first MBS service is forwarded by the second cell to the first cell, and the first cell receives the information of the first MBS service sent by the second cell.

The embodiment of the application does not limit the specific implementation flow of cell switching. In an alternative manner, the cell handover procedure includes: 1. a measurement and reporting phase; 2. a switching preparation stage; 3. a switching execution stage; 4. and a switching completion stage. In specific implementation, the terminal device performs measurement and reports the measurement result to the current serving cell (i.e. the second cell). The second cell judges that the switching condition is met according to the measurement result, and a target cell (namely a first cell) is selected for the terminal equipment; the second cell sends a switching command to the terminal equipment, and the terminal equipment is switched to the first cell, so that switching is completed.

In the embodiment of the present application, the first cell receives the information of the first MBS service sent by the second cell, which may be implemented at any stage in the handover process. In an optional manner, the first cell receives a handover preparation information (handover preparation information) message sent by the second cell, where the handover preparation information message carries information of the first MBS service. Further, the handover preparation information message includes an access stratum Context (AS-Context) including information of the first MBS service. The following table 1 shows that the AS-Context in the handling preparation information message carries the information of the first MBS service, where the information of the first MBS service is the mbsip in table 1.

TABLE 1

Step 203: and the first cell determines MBS service configuration information according to the information of the first MBS service and sends the MBS service configuration information to the terminal equipment through a switching command.

In this embodiment, for a terminal device side, the terminal device receives a handover command sent by the first cell, where the handover command carries MBS service configuration information, and the MBS service configuration information is determined based on information of the first MBS service.

In the embodiment of the application, the first cell sends the MBS service configuration information to the terminal equipment through the switching command. In an alternative manner, the handover command carries an RRC reconfiguration (rrcrecon configuration) message, where the RRC reconfiguration message includes the MBS service configuration information.

In this embodiment of the present application, the MBS service configuration information has the following two implementation manners:

mode one: the MBS service configuration information comprises configuration information of all MBS services broadcasted by the first cell; or,

mode two: the MBS service configuration information comprises the configuration information of the first MBS service broadcasted by the first cell.

In one example, the MBS services broadcast by the first cell are a first MBS service, a second MBS service, and a third MBS service. The MBS service configuration information comprises configuration information of a first MBS service, configuration information of a second MBS service and configuration information of a third MBS service.

In one example, the MBS services broadcast by the first cell are a first MBS service, a second MBS service, and a third MBS service. The MBS service configuration information comprises configuration information of a first MBS service indicated by the terminal equipment.

In the above scheme, the configuration information of each MBS service in the configuration information of all MBS services includes information in broadcast control channel (Broadcast Control Channel, BCCH) signaling and/or information in multicast control channel MCCH signaling associated with the MBS service.

In the above solution, the configuration information of the first MBS service includes information in the associated BCCH signaling and/or information in the MCCH signaling of the first MBS service.

In an alternative manner, the information in the BCCH signaling includes configuration information for receiving MCCH signaling. Specifically, the configuration information for receiving MCCH signaling includes at least one of: the MCCH modification period, the MCCH repetition period, time domain resource information for transmitting the MCCH (e.g., configuration information such as radio frames, subframes, slots, symbols, etc. for MCCH transmission), scheduling RNTI, modification notification RNTI, subcarrier spacing, transmission bandwidth, BWP indication information.

Here, the scheduling RNTI refers to an RNTI for scrambling MSB PDCCHs (e.g., MCCH PDCCH, MTCH PDCCH). The modification notification RNTI refers to an RNTI for scrambling the notification PDCCH.

In an alternative manner, the information in the MCCH signaling includes configuration information of MBS services. Specifically, the configuration information of the MBS service includes at least one of the following: TMGI of MBS service, session identification of MBS service, G-RNTI of MBS service, DRX configuration information, subcarrier interval, transmission bandwidth, BWP indication information, MBS service information of neighbor cell.

According to the technical scheme, the terminal equipment sends information of a first MBS service to a second cell (namely a switched original cell), wherein the first MBS service is expected by the terminal equipment or is received, the second cell forwards the information of the first MBS service to the first cell (namely a switched target cell), and the first cell determines MBS service configuration information according to the information of the first MBS service and sends the MBS service configuration information to the terminal equipment through a switching command. The terminal equipment can directly acquire the MBS service configuration information from the switching command in the switching process without waiting for acquiring the MBS service configuration information from the system broadcast message or the MCCH signaling of the first cell after switching to the first cell, thereby reducing the interruption time delay of the MBS service in the switching process.

Fig. 3 is a schematic structural diagram of a configuration apparatus for MBS service provided in an embodiment of the present application, which is applied to a network device corresponding to a first cell (e.g., a first base station corresponding to the first cell), as shown in fig. 3, where the configuration apparatus for MBS service includes:

a receiving unit 301, configured to receive information of a first MBS service sent by a second cell, where the first MBS service is an MBS service expected by a terminal device or an MBS service being received;

a determining unit 302, configured to determine MBS service configuration information according to the information of the first MBS service;

and a sending unit 303, configured to send the MBS service configuration information to the terminal device through a handover command.

In an alternative manner, the information of the first MBS service includes at least one of the following:

identification information of a first MBS service;

frequency point information of a first MBS service;

BWP information of the first MBS service;

subcarrier spacing information of a first MBS service;

priority information of the first MBS service.

In an alternative manner, the receiving unit 301 is configured to receive handover preparation information sent by the second cell, where the handover preparation information message carries information of the first MBS service.

In an alternative manner, the handover preparation information message includes an AS-Context, where the AS-Context includes information of the first MBS service.

In an alternative manner, the handover command carries an RRC reconfiguration message, where the RRC reconfiguration message includes the MBS service configuration information.

In an alternative manner, the MBS service configuration information includes configuration information of all MBS services broadcasted by the first cell; or,

the MBS service configuration information comprises the configuration information of the first MBS service broadcasted by the first cell.

In an alternative manner, the configuration information of each MBS service in the configuration information of all MBS services includes information in BCCH signaling and/or information in MCCH signaling associated with the MBS service.

In an alternative manner, the configuration information of the first MBS service includes information in associated BCCH signaling and/or information in MCCH signaling of the first MBS service.

In an alternative manner, the information in the BCCH signaling includes configuration information for receiving MCCH signaling.

In an alternative manner, the configuration information for receiving MCCH signaling includes at least one of:

the MCCH modification period, the MCCH repetition period, the time domain resource information of the transmission MCCH, the scheduling RNTI, the modification notification RNTI, the subcarrier spacing, the transmission bandwidth, the BWP indication information.

In an alternative manner, the information in the MCCH signaling includes configuration information of MBS services.

In an alternative manner, the configuration information of the MBS service includes at least one of the following:

TMGI of MBS service, session identification of MBS service, G-RNTI of MBS service, DRX configuration information, subcarrier interval, transmission bandwidth, BWP indication information, MBS service information of neighbor cell.

It should be understood by those skilled in the art that the description of the above-mentioned configuration device of MBS service according to the embodiment of the present application may be understood with reference to the description of the configuration method of MBS service according to the embodiment of the present application.

Fig. 4 is a schematic diagram of a second structural component of the MBS service configuration device provided in the embodiment of the present application, where the MBS service configuration device is applied to a terminal device, as shown in fig. 4, and the MBS service configuration device includes:

a sending unit 401, configured to send information of a first MBS service to a second cell, where the first MBS service is an MBS service expected by a terminal device or an MBS service being received; the information of the first MBS service is forwarded to a first cell by the second cell;

and a receiving unit 402, configured to receive a handover command sent by the first cell, where the handover command carries MBS service configuration information, and the MBS service configuration information is determined based on the information of the first MBS service.

identification information of a first MBS service;

frequency point information of a first MBS service;

BWP information of the first MBS service;

subcarrier spacing information of a first MBS service;

priority information of the first MBS service.

In an alternative manner, the sending unit 401 is configured to send RRC signaling to the second cell, where the RRC signaling carries information of the first MBS service.

In an alternative, the RRC signaling is one of:

UE assistance information message;

a security activation completion message;

RRC setup complete message;

RRC resume complete message;

RRC reestablishment complete message;

RRC reconfiguration complete message.

Fig. 5 is a schematic structural diagram of a communication device 500 provided in an embodiment of the present application. The communication device may be a terminal device or a network device, and the communication device 500 shown in fig. 5 includes a processor 510, where the processor 510 may call and execute a computer program from a memory to implement the method in the embodiments of the present application.

Optionally, as shown in fig. 5, the communication device 500 may also include a memory 520. Wherein the processor 510 may call and run a computer program from the memory 520 to implement the methods in embodiments of the present application.

Wherein the memory 520 may be a separate device from the processor 510 or may be integrated into the processor 510.

Optionally, as shown in fig. 5, the communication device 500 may further include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices, and in particular, may send information or data to other devices, or receive information or data sent by other devices.

Wherein the transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include antennas, the number of which may be one or more.

Optionally, the communication device 500 may be specifically a network device in the embodiment of the present application, and the communication device 500 may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the communication device 500 may be specifically a mobile terminal/terminal device in the embodiment of the present application, and the communication device 500 may implement a corresponding flow implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

Fig. 6 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 600 shown in fig. 6 includes a processor 610, and the processor 610 may call and run a computer program from a memory to implement the methods in the embodiments of the present application.

Optionally, as shown in fig. 6, the chip 600 may further include a memory 620. Wherein the processor 610 may call and run a computer program from the memory 620 to implement the methods in embodiments of the present application.

The memory 620 may be a separate device from the processor 610 or may be integrated into the processor 610.

Optionally, the chip 600 may also include an input interface 630. The processor 610 may control the input interface 630 to communicate with other devices or chips, and in particular, may acquire information or data sent by the other devices or chips.

Optionally, the chip 600 may further include an output interface 640. Wherein the processor 610 may control the output interface 640 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

Optionally, the chip may be applied to a network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the chip may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

Fig. 7 is a schematic block diagram of a communication system 700 provided in an embodiment of the present application. As shown in fig. 7, the communication system 700 includes a terminal device 710 and a network device 720.

The terminal device 710 may be configured to implement the corresponding functions implemented by the terminal device in the above method, and the network device 720 may be configured to implement the corresponding functions implemented by the network device in the above method, which are not described herein for brevity.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memory is exemplary but not limiting, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

Embodiments of the present application also provide a computer-readable storage medium for storing a computer program.

Optionally, the computer readable storage medium may be applied to a network device in the embodiments of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiments of the present application, which is not described herein for brevity.

Optionally, the computer readable storage medium may be applied to a mobile terminal/terminal device in the embodiments of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, which is not described herein for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to a network device in the embodiments of the present application, and the computer program instructions cause the computer to execute corresponding flows implemented by the network device in the methods in the embodiments of the present application, which are not described herein for brevity.

Optionally, the computer program product may be applied to a mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiments of the present application, which are not described herein for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to a network device in the embodiments of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the network device in each method in the embodiments of the present application, which is not described herein for brevity.

Optionally, the computer program may be applied to a mobile terminal/terminal device in the embodiments of the present application, where the computer program when run on a computer causes the computer to execute corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiments of the present application, and for brevity, will not be described herein.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application 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 functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a usb 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.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method for configuring multicast broadcast service MBS service, the method comprising:

the method comprises the steps that a first cell receives information of a first MBS service sent by a second cell, wherein the first MBS service is an MBS service expected by terminal equipment or an MBS service being received;

and the first cell determines MBS service configuration information according to the information of the first MBS service and sends the MBS service configuration information to the terminal equipment through a switching command.
The method of claim 1, wherein the information of the first MBS service comprises at least one of:

identification information of a first MBS service;

frequency point information of a first MBS service;

bandwidth part BWP information of the first MBS service;

subcarrier spacing SCS information of a first MBS service;

priority information of the first MBS service.
The method of claim 1 or 2, wherein the first cell receives information of the first MBS service transmitted by the second cell, comprising:

the first cell receives a handover preparation information message sent by a second cell, where the handover preparation information message carries information of the first MBS service.
A method according to claim 3, wherein said handover preparation information message comprises an access stratum Context AS-Context, said AS-Context comprising information of said first MBS service.
The method according to any of claims 1-4, wherein the handover command carries a radio resource control, RRC, reconfiguration message comprising the MBS service configuration information.
The method according to any one of claims 1 to 5, wherein,

the MBS service configuration information comprises configuration information of all MBS services broadcasted by the first cell; or,

the MBS service configuration information comprises the configuration information of the first MBS service broadcasted by the first cell.
The method of claim 6, wherein the configuration information of each MBS service in the configuration information of all MBS services comprises information in broadcast control channel, BCCH, signaling and/or information in multicast control channel, MCCH, signaling associated with the MBS service.
The method of claim 6, wherein the configuration information of the first MBS service includes information in associated BCCH signaling and/or information in MCCH signaling of the first MBS service.
The method of claim 7 or 8, wherein the information in the BCCH signaling includes configuration information for receiving MCCH signaling.
The method of claim 9, wherein the configuration information for receiving MCCH signaling comprises at least one of:

the method comprises the steps of a modification period of MCCH, a repetition period of MCCH, time domain resource information for transmitting the MCCH, a scheduling Radio Network Temporary Identifier (RNTI), a modification notice RNTI, a subcarrier interval, a transmission bandwidth and BWP indication information.
The method of claim 7 or 8, wherein the information in the MCCH signaling comprises configuration information of MBS services.
The method of claim 11, wherein the configuration information of the MBS service comprises at least one of:

the temporary mobile group identifier TMGI of MBS service, session identifier of MBS service, group radio network temporary identifier G-RNTI of MBS service, discontinuous reception DRX configuration information, subcarrier interval, transmission bandwidth, BWP indication information and MBS service information of neighbor cell.
A method for configuring MBS service, the method comprising:

the terminal equipment sends information of a first MBS service to a second cell, wherein the first MBS service is an MBS service expected by the terminal equipment or an MBS service being received;

the terminal equipment receives a switching command sent by the first cell, wherein the switching command carries MBS service configuration information, and the MBS service configuration information is determined based on the information of the first MBS service.
The method of claim 13, wherein the information of the first MBS service comprises at least one of:

identification information of a first MBS service;

frequency point information of a first MBS service;

BWP information of the first MBS service;

subcarrier spacing information of a first MBS service;

priority information of the first MBS service.
The method of claim 13 or 14, wherein the terminal device transmitting information of the first MBS service to the second cell comprises:

and the terminal equipment sends RRC signaling to the second cell, wherein the RRC signaling carries the information of the first MBS service.
The method of claim 15, wherein the RRC signaling is one of:

UE assistance information message;

A security activation completion message;

RRC setup complete message;

RRC resume complete message;

RRC reestablishment complete message;

RRC reconfiguration complete message.
The method of any of claims 13 to 16, wherein the handover command carries an RRC reconfiguration message that includes the MBS service configuration information.
The method according to any one of claims 13 to 17, wherein,

the MBS service configuration information comprises configuration information of all MBS services broadcasted by the first cell; or,

the MBS service configuration information comprises the configuration information of the first MBS service broadcasted by the first cell.
The method of claim 18, wherein the configuration information of each MBS service in the configuration information of all MBS services comprises information in BCCH signaling and/or information in MCCH signaling associated with the MBS service.
The method of claim 18, wherein the configuration information of the first MBS service comprises information in associated BCCH signaling and/or information in MCCH signaling of the first MBS service.
The method of claim 19 or 20, wherein the information in the BCCH signaling includes configuration information for receiving MCCH signaling.
The method of claim 21, wherein the configuration information for receiving MCCH signaling comprises at least one of:

the MCCH modification period, the MCCH repetition period, the time domain resource information of the transmission MCCH, the scheduling RNTI, the modification notification RNTI, the subcarrier spacing, the transmission bandwidth, the BWP indication information.
The method of claim 19 or 20, wherein the information in the MCCH signaling comprises configuration information of MBS services.
The method of claim 23, wherein the configuration information of the MBS service comprises at least one of:

TMGI of MBS service, session identification of MBS service, G-RNTI of MBS service, DRX configuration information, subcarrier interval, transmission bandwidth, BWP indication information, MBS service information of neighbor cell.
A configuration apparatus for MBS service, applied to a network device corresponding to a first cell, the apparatus comprising:

a receiving unit, configured to receive information of a first MBS service sent by a second cell, where the first MBS service is an MBS service expected by a terminal device or an MBS service being received;

a determining unit, configured to determine MBS service configuration information according to the information of the first MBS service;

and the sending unit is used for sending the MBS service configuration information to the terminal equipment through a switching command.
The apparatus of claim 25, wherein the information of the first MBS service comprises at least one of:

identification information of a first MBS service;

frequency point information of a first MBS service;

BWP information of the first MBS service;

subcarrier spacing information of a first MBS service;

priority information of the first MBS service.
The apparatus of claim 25 or 26, wherein the receiving unit is configured to receive a handover preparation information message sent by a second cell, where the handover preparation information message carries information of the first MBS service.
The apparatus of claim 27, wherein the handover preparation information message includes an AS-Context including information of the first MBS service.
The apparatus of any of claims 25-28, wherein the handover command carries an RRC reconfiguration message that includes the MBS service configuration information.
The apparatus of any one of claims 25 to 29, wherein,

the MBS service configuration information comprises configuration information of all MBS services broadcasted by the first cell; or,

the MBS service configuration information comprises the configuration information of the first MBS service broadcasted by the first cell.
The apparatus of claim 30, wherein the configuration information of each MBS service in the configuration information of all MBS services comprises information in BCCH signaling and/or information in MCCH signaling associated with the MBS service.
The apparatus of claim 30, wherein the configuration information of the first MBS service comprises information in associated BCCH signaling and/or information in MCCH signaling of the first MBS service.
The apparatus of claim 31 or 32, wherein the information in the BCCH signaling includes configuration information for receiving MCCH signaling.
The apparatus of claim 33, wherein the configuration information for receiving MCCH signaling comprises at least one of:

the MCCH modification period, the MCCH repetition period, the time domain resource information of the transmission MCCH, the scheduling RNTI, the modification notification RNTI, the subcarrier spacing, the transmission bandwidth, the BWP indication information.
The apparatus of claim 31 or 32, wherein the information in the MCCH signaling comprises configuration information of MBS services.
The apparatus of claim 35, wherein the configuration information of the MBS service comprises at least one of:

TMGI of MBS service, session identification of MBS service, G-RNTI of MBS service, DRX configuration information, subcarrier interval, transmission bandwidth, BWP indication information, MBS service information of neighbor cell.
A configuration apparatus of MBS service, applied to a terminal device, the apparatus comprising:

a sending unit, configured to send information of a first MBS service to a second cell, where the first MBS service is an MBS service expected by a terminal device or an MBS service being received;

and the receiving unit is used for receiving a switching command sent by the first cell, wherein the switching command carries MBS service configuration information, and the MBS service configuration information is determined based on the information of the first MBS service.
The apparatus of claim 37, wherein the information of the first MBS service comprises at least one of:

identification information of a first MBS service;

frequency point information of a first MBS service;

BWP information of the first MBS service;

subcarrier spacing information of a first MBS service;

priority information of the first MBS service.
The apparatus of claim 37 or 38, wherein the sending unit is configured to send RRC signaling to a second cell, where the RRC signaling carries information of the first MBS service.
The apparatus of claim 39, wherein the RRC signaling is one of:

UE assistance information message;

a security activation completion message;

RRC setup complete message;

RRC resume complete message;

RRC reestablishment complete message;

RRC reconfiguration complete message.
The apparatus of any of claims 37-40, wherein the handover command carries an RRC reconfiguration message that includes the MBS service configuration information.
The apparatus of any one of claims 37 to 41, wherein,

the MBS service configuration information comprises configuration information of all MBS services broadcasted by the first cell; or,

the MBS service configuration information comprises the configuration information of the first MBS service broadcasted by the first cell.
The apparatus of claim 42, wherein the configuration information for each MBS service in the configuration information for all MBS services comprises information in BCCH signaling and/or information in MCCH signaling associated with the MBS service.
The apparatus of claim 42, wherein the configuration information of the first MBS service comprises information in associated BCCH signaling and/or information in MCCH signaling of the first MBS service.
The apparatus of claim 43 or 44, wherein the information in the BCCH signaling includes configuration information for receiving MCCH signaling.
The apparatus of claim 45, wherein the configuration information for receiving MCCH signaling comprises at least one of:

The MCCH modification period, the MCCH repetition period, the time domain resource information of the transmission MCCH, the scheduling RNTI, the modification notification RNTI, the subcarrier spacing, the transmission bandwidth, the BWP indication information.
The apparatus of claim 43 or 44, wherein the information in the MCCH signaling comprises configuration information of MBS services.
The apparatus of claim 47, wherein the configuration information of the MBS service comprises at least one of:

TMGI of MBS service, session identification of MBS service, G-RNTI of MBS service, DRX configuration information, subcarrier interval, transmission bandwidth, BWP indication information, MBS service information of neighbor cell.
A network device, comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory, to perform the method according to any of claims 1 to 12.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 13 to 24.
A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 12.
A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any of claims 13 to 24.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 12.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 13 to 24.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 12.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 13 to 24.
A computer program which causes a computer to perform the method of any one of claims 1 to 12.
A computer program which causes a computer to perform the method of any of claims 13 to 24.