CN115668993A

CN115668993A - Method and device for receiving local MBS (multicast broadcast multicast service), terminal equipment and network equipment

Info

Publication number: CN115668993A
Application number: CN202080101113.4A
Authority: CN
Inventors: 王淑坤; 刘建华
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2023-01-31
Also published as: WO2022006746A1

Abstract

The embodiment of the application provides a method and a device for receiving local MBS service, terminal equipment and network equipment, wherein the method comprises the following steps: a terminal device receives first configuration information sent by a first cell, wherein the first configuration information comprises configuration information of a local MBS service of a second cell, and the second cell is a neighboring cell of the first cell; and the terminal equipment performs cell reselection to the second cell and receives the local MBS service sent by the second cell based on the configuration information of the local MBS service of the second cell.

Description

Method and device for receiving local MBS (multicast broadcast multicast service), terminal equipment and network equipment

Technical Field

The embodiment of the present application relates to the field of mobile communication technologies, and in particular, to a method and an apparatus for receiving a local Multimedia multicast Service (MBS) Service, a terminal device, and a network device.

Background

In the MBS service, a service type of a "Local MBS service" is defined, and the Local MBS service performs multicast service transmission in a fixed area and at a fixed time. For the terminal equipment, the local MBS service can be received if and only if the terminal equipment resides in the fixed area of the local MBS service. How to ensure that the terminal equipment preferentially resides in the fixed area of the local MBS service needs to be solved.

Disclosure of Invention

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

The method for receiving the local MBS service provided by the embodiment of the application comprises the following steps:

a terminal device receives first configuration information sent by a first cell, wherein the first configuration information comprises configuration information of a local MBS service of a second cell, and the second cell is a neighboring cell of the first cell;

and the terminal equipment performs cell reselection to the second cell and receives the local MBS service sent by the second cell based on the configuration information of the local MBS service of the second cell.

a first cell receives first notification information sent by a terminal device, wherein the first notification information is used for notifying the first cell of a local MBS service which the terminal device expects to receive or is receiving;

the first cell receives first configuration information sent by a second cell, wherein the first configuration information comprises configuration information of a local MBS service of the second cell;

the first cell determines whether to select the second cell as a target cell for cell handover based on the first notification information and the first configuration information.

The device for receiving the local MBS service provided by the embodiment of the application comprises the following components:

a receiving unit, configured to receive first configuration information sent by a first cell, where the first configuration information includes configuration information of a local MBS service of a second cell, and the second cell is a neighboring cell of the first cell;

a reselection unit, configured to perform cell reselection to the second cell based on configuration information of a local MBS service of the second cell;

the receiving unit is further configured to receive the local MBS service sent by the second cell.

a receiving unit, configured to receive first notification information sent by a terminal device, where the first notification information is used to notify a first cell of a local MBS service that the terminal device desires to receive or is receiving; receiving first configuration information sent by a second cell, wherein the first configuration information comprises configuration information of a local MBS service of the second cell;

a determining unit, configured to determine whether to select the second cell as a target cell for cell handover based on the first notification information and the first configuration information.

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

The network equipment provided by the embodiment of the application comprises a processor and a memory. The memory is used for storing computer programs, and the processor is used for calling and running the computer programs stored in the memory to execute the method for receiving the local MBS service.

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

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

The computer-readable storage medium provided in the embodiments of the present application is used for storing a computer program, where the computer program enables a computer to execute the above-described method for receiving a local MBS service.

The computer program product provided by the embodiment of the present application includes computer program instructions, where the computer program instructions enable a computer to execute the method for receiving a local MBS service.

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

Through the technical scheme, a cell reselection mechanism and a cell switching mechanism are provided, so that the terminal equipment can reselect or switch to a cell with local MBS service as much as possible, and the local MBS service is received.

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 embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

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

fig. 2 is a first flowchart illustrating a method for receiving a local MBS service according to an embodiment of the present application;

fig. 3 is a flowchart illustrating a second method for receiving a local MBS service according to an embodiment of the present application;

fig. 4 is a schematic diagram of a same-frequency deployment scenario provided in an embodiment of the present application;

fig. 5 is a schematic diagram of a pilot frequency deployment scenario provided in an embodiment of the present application;

fig. 6 is a first schematic structural diagram of a device for receiving a local MBS service according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a device for receiving a local MBS service according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

FIG. 9 is a schematic block diagram of a chip of an embodiment of the present application;

fig. 10 is a schematic block diagram of a communication system according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, a 5G communication system, a future communication system, or the like.

Illustratively, a communication system 100 applied in the embodiment of the present application 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 Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or the Network device may be a mobile switching center, a relay station, an Access point, an in-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, and the like.

The communication system 100 further comprises at least one terminal 120 located within the coverage area of the network device 110. As used herein, "terminal" includes, but is not limited to, a connection via a wireline, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a Digital cable, a 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 (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter; and/or means of another terminal arranged to receive/transmit communication signals; and/or Internet of Things (IoT) devices. A terminal that is arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal can 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 phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication capability, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal in a 5G network or a terminal in a future evolved PLMN, etc.

Optionally, the terminals 120 may perform direct-to-Device (D2D) communication therebetween.

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

Fig. 1 exemplarily shows one network device and two terminals, and optionally, the communication system 100 may include a plurality of network devices and may include other numbers of terminals within the coverage of each network device, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that a device having a communication function in a network/system in the embodiments 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 having a communication function, and the network device 110 and the terminal 120 may be the specific devices described above and are not described again here; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

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

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions related to the embodiments of the present application are described below.

With the pursuit of speed, delay, high-speed mobility, energy efficiency and the diversity and complexity of the services in future life, the third generation partnership project (3) ^rd Generation Partnership Project,3 GPP) the international organization for standardization began developing 5G. The main application scenarios of 5G are: enhanced Mobile Ultra wide band (eMBB), low-Latency high-reliability Communications (URLLC), and massive Machine-Type Communications (massive Machine-Type) Communications，mMTC)。

On the one hand, the eMBB still targets users to obtain multimedia content, services and data, and its demand is growing very rapidly. On the other hand, because the eMBB may be deployed in different scenarios, such as indoor, urban, rural, etc., and the difference between the capabilities and the requirements is relatively large, it cannot be said that it must be analyzed in detail in conjunction with a specific deployment scenario. Typical applications of URLLC include: industrial automation, electric power automation, remote medical operation (surgery), traffic safety, and the like. Typical characteristics of mtc include: high connection density, small data volume, insensitive time delay service, low cost and long service life of the module, etc.

In early NR deployment, complete NR coverage is difficult to obtain, so typical network coverage is wide-area LTE coverage and isolated island coverage pattern of NR. Moreover, a large amount of LTE is deployed below 6GHz, and the spectrum below 6GHz available for 5G is rare. NR must therefore be studied for spectrum applications above 6GHz, with limited high band coverage and fast signal fading. Meanwhile, in order to protect the early-stage LTE investment of mobile operators, a tight coupling (light interworking) working mode between LTE and NR is provided.

RRC state

In order to reduce air interface signaling, quickly recover wireless connection, and quickly recover data service, 5G defines a new Radio Resource Control (RRC) state, that is, an RRC INACTIVE (RRC _ INACTIVE) state. This state is distinguished from the RRC IDLE (RRC IDLE) state and the RRC ACTIVE (RRC ACTIVE) state. Wherein the content of the first and second substances,

1) RRC _ IDLE state (IDLE state for short): the mobility is cell selection and reselection based on terminal equipment, paging is initiated by a Core Network (CN), and a paging area is configured by the CN. The base station side has no terminal equipment context and no RRC connection.

2) RRC _ CONNECTED state (CONNECTED state for short): the RRC connection exists, and the base station side and the terminal device side have a terminal device context. The network side knows that the location of the terminal device is at a particular cell level. Mobility is network side controlled mobility. Unicast data may be transmitted between the terminal device and the base station.

3) RRC _ INACTIVE state (INACTIVE state for short): mobility is based on cell selection reselection of terminal equipment, connection between CN-NR exists, context of the terminal equipment exists on a certain base station, paging is triggered by RAN, a paging area based on the RAN is managed by the RAN, and the network side knows that the position of the terminal equipment is based on the paging area level of the RAN.

MBMS

MBMS is a technology for transmitting data from one data source to a plurality of UEs by sharing network resources, which enables broadcasting and multicasting of a multimedia service at a higher rate (e.g., 256 kbps) by effectively using network resources while providing the multimedia service.

Because the MBMS spectrum efficiency is low, it is not enough to effectively carry and support the operation of the mobile tv type service. Therefore, in LTE, 3GPP explicitly proposes to enhance the support capability for downlink high-speed MBMS service, and determines the design requirements for the physical layer and air interface.

The 3GPP R9 introduces evolved MBMS (eMBMS) into LTE. eMBMS proposes a Single Frequency Network (SFN) concept, that is, a Multimedia Broadcast multicast service Single Frequency Network (MBSFN), where MBSFN employs a uniform Frequency to simultaneously transmit service data in all cells, but needs to ensure synchronization between the cells. The method can greatly improve the distribution of the overall signal-to-noise ratio 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 protocol.

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 the idle-state or connected-state UE.

A Single Cell Point To multipoint (SC-PTM) concept is introduced into a 3GPP R13, and the SC-PTM is based on an MBMS network architecture.

MBMS introduces new logical channels including a Single Cell-Multicast Control Channel (SC-MCCH) and a Single Cell-Multicast Transport Channel (SC-MTCH). The SC-MCCH and SC-MTCH are mapped to a Downlink-Shared Channel (DL-SCH), and the DL-SCH is further mapped to a 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 (HARQ) operation.

MBMS introduces a new System Information Block (SIB) type, SIB20. Specifically, 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, and the scheduling of the wireless frame and the subframe of the SC-MCCH. Further, 1) the boundary of the modification period of the SC-MCCH satisfies SFN mod m =0, where SFN represents the system frame number of the boundary, and m is the modification period of the SC-MCCH configured in SIB20 (i.e., SC-MCCH-modification period). 2) And scheduling the radio frame of the SC-MCCH to meet the following requirements: SFN mod MCCH-repetition period = MCCH-Offset, where SFN represents a system frame number of a radio frame, MCCH-repetition period represents a repetition period of the SC-MCCH, and MCCH-Offset represents an Offset of the SC-MCCH. 3) The sub-frame of the SC-MCCH is scheduled and indicated by SC-MCCH-Subframe.

The SC-MCCH is scheduled through a Physical Downlink Control Channel (PDCCH). On one hand, a new Radio Network Temporary Identity (RNTI), that is, a Single Cell RNTI (SC-RNTI) is introduced to identify a PDCCH (e.g., SC-MCCH PDCCH) for scheduling an SC-MCCH, and optionally, the SC-RNTI is fixedly valued as FFFC. On the other hand, a new RNTI, namely a 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, and optionally, the SC-N-RNTI is fixedly valued as FFFB; further, the change notification may be indicated by one bit of 8 bits (bits) of the DCI 1C. In LTE, the configuration information of SC-PTM is based on SC-MCCH configured by SIB20, and then SC-MCCH configures SC-MTCH which is used for transmitting service data.

Specifically, the SC-MCCH transmits only one message (i.e., SCPTMConfiguration) for configuring configuration information of the SC-PTM. The configuration information of SC-PTM includes: temporary Mobile Group Identity (TMGI), session Identity (session id), group RNTI (G-RNTI), discontinuous Reception (DRX) configuration information, SC-PTM service information of the neighbor cell, and the like. It should be noted that SC-PTM in R13 does not support Robust Header Compression (ROHC) function.

The downlink discontinuous reception of SC-PTMs is controlled by the following parameters: ondurationTimerSCPTM, drx-InactivetTimeSCPTM, SC-MTCH-SchedulingCycle, and SC-MTCH-SchedulingOffset.

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

when receiving downlink PDCCH dispatching, starting a timer drx-InactivetyTimerSCPTM;

the downlink SC-PTM service is received only when the timer onDurationTimerSCPTM or drx-inactivityttimerscptm is running.

SC-PTM service continuity adopts SIB 15-based MBMS service continuity concept, namely SIB15+ MBMSIntestrIndication mode. The traffic continuity of idle UEs is based on the concept of frequency priority.

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 MBMS service, in other words, the first SIB is used to configure configuration information of a control channel of an NR MBMS, and optionally, the control channel of the NR MBMS may also be referred to as an NR MCCH (i.e., the first MCCH).

Further, the first MCCH is used to carry a first signaling, and in this embodiment of the present application, the name of the first signaling is not limited, for example, the first signaling is signaling a, 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 transport channel) of an MBMS service, and the first MTCH is used to transmit MBMS service data (e.g., service data of NR MBMS). In other words, the first MCCH is used to configure configuration information of a traffic channel of the NR MBMS, which may also be called NR MTCH (i.e., the first MTCH) optionally.

Specifically, the first signaling is used to configure a service channel of the NR MBMS, 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, the identification information for identifying the service, such as the TMGI, the session id, and the like. The scheduling information corresponding to the traffic channel, for example, the RNTI used when the MBMS service data corresponding to the traffic channel is scheduled, such as G-RNTI, DRX configuration information, and the like.

It should be noted that the transmission of the first MCCH and the first MTCH is scheduled based on the PDCCH. Wherein, the RNTI used by the PDCCH for scheduling the first MCCH uses a network-wide unique identifier, which is a fixed value. The RNTI used by the PDCCH for scheduling the first MTCH is configured through the first MCCH.

It should be noted that, in the embodiments of the present application, nomenclature of the first SIB, the first MCCH, and the first MTCH is not limited. For convenience of description, the first SIB may also be referred to as SIB, the first MCCH may also be referred to as MCCH, the first MTCH may also be referred to as MTCH, and a PDCCH for scheduling MCCH (i.e., MCCH PDCCH) and a notification PDCCH are configured through SIB, wherein DCI carried through the MCCH PDCCH schedules PDSCH for transmitting MCCH (i.e., MCCH PDSCH). Further, M PDCCHs (namely MTCH 1 PDCCH, MTCH 2 PDCCH, 8230; MTCH M PDCCH) for scheduling MTCH are configured through the MCCH, wherein DCI carried by the MTCH n PDCCH schedules PDSCH (namely MTCH n PDSCH) for transmitting MTCH n, and n is an integer which is more than or equal to 1 and less than or equal to M. The MCCH and MTCH are mapped to DL-SCH, which belongs to a logical channel, and further mapped to PDSCH, which belongs to a physical channel.

It should be noted that the MBMS service in the above scheme includes, but is not limited to, a multicast service and a multicast service. In the embodiment of the present application, an MBS service is taken as an example for description, and the description of the "MBS service" may also be replaced by a "multicast service" or an "MBMS service".

In the NR MBS service, a service type of a "local MBS service" is defined, and the local MBS service transmits a multicast service in a fixed area and at a fixed time. For the terminal equipment, the local MBS service can be received if and only if the terminal equipment resides in the fixed area of the local MBS service. At present, no mechanism is given for the terminal device to preferentially reside in the fixed area of the local MBS service. Therefore, the following technical solutions of the embodiments of the present application are provided, and the technical solutions of the embodiments of the present application provide a reselection mechanism and a handover mechanism, so that a terminal device reselects or switches to a local MBS service area as much as possible, thereby enabling the terminal device to receive the local MBS service as much as possible.

Fig. 2 is a first flowchart illustrating a method for receiving a local MBS service according to an embodiment of the present application, where as shown in fig. 2, the method for receiving a local MBS service includes the following steps:

step 201: the method comprises the steps that terminal equipment receives first configuration information sent by a first cell, wherein the first configuration information comprises configuration information of a local MBS service of a second cell, and the second cell is a neighboring cell of the first cell.

In this embodiment, the terminal device is in an idle state or an inactive state.

In this embodiment of the present application, the first cell refers to a current cell, that is, a current serving cell of a terminal device. The second cell is a neighboring cell of the first cell, and the second cell supports local MBS service.

In an optional manner of the present application, the first configuration information is carried in system broadcast information of the first cell. Specifically, the first cell broadcasts the first configuration information (i.e. the configuration information of the local MBS service of the second cell) through the system broadcast information. Here, the system broadcast information is, for example, the first SIB in the above scheme.

The technical scheme of the embodiment of the present application is described in cases by combining a co-frequency deployment scenario and a pilot-frequency deployment scenario.

● Same frequency deployment scenario

When the second cell is a same-frequency neighboring cell of the first cell, the configuration information of the local MBS service includes at least one of: service identification information of the MBS service, cell identification information for sending the MBS service, frequency layer information of the MBS service, time information of the MBS service, cell reselection conditions for the terminal equipment to reselect from the first cell to the second cell, and effective information of the cell reselection conditions.

In an optional manner, the cell reselection condition in the foregoing scheme includes: and if the signal quality measured on the first cell is lower than a first configuration threshold and/or the signal quality measured on the second cell is higher than a second configuration threshold, triggering the terminal equipment to reselect from the first cell to the second cell. Further, optionally, the signal quality is one of: reference Signal Received Power (RSRP), reference Signal Received Quality (RSRQ), and Signal to Interference plus Noise Ratio (SINR).

In an optional manner, the validation information of the cell reselection condition in the above solution includes at least one of:

first indication information, wherein the first indication information is used for indicating whether the cell reselection condition is effective or not;

second indication information for indicating a start time and/or a duration for which the cell reselection condition is in effect.

Here, the second indication information indicates a starting time at which the cell reselection condition is valid, and specifically may be: the second indication information indicates a starting SFN at which the cell reselection condition takes effect.

In the above scheme, the time information of the MBS service may have at least one of the following implementation manners:

1) In an optional manner, the time information of the MBS service in the above scheme is absolute time information, and the absolute time information is used to determine the start time of the local MBS service.

2) In an optional manner, the time information of the MBS service in the above scheme is relative time information, and the relative time information is used to determine a time length between the start time of the local MBS service and the current time.

3) In an optional manner, the time information of the MBS service in the above scheme is time domain information, and the time domain information is used to determine a time domain starting time of a local MBS service. Further, optionally, the time domain starting time of the local MBS service is represented by at least one of: SFN, superframe number.

4) In an optional manner, the time information of the MBS service in the above scheme is state information of a local MBS service, where the state information of the local MBS service is used to indicate that the local MBS service is in an upcoming state, or in an ongoing state, or in an already ended state.

● Pilot frequency deployment scenario

When the second cell is a pilot frequency neighboring cell of the first cell, the configuration information of the local MBS service includes at least one of: service identification information of the MBS service, cell identification information for sending the MBS service, frequency layer information of the MBS service and time information of the MBS service.

Step 202: and the terminal equipment performs cell reselection to the second cell and receives the local MBS service sent by the second cell based on the configuration information of the local MBS service of the second cell.

For the same-frequency deployment scene, the terminal device performs cell reselection to the second cell based on the configuration information of the local MBS service of the second cell, and receives the local MBS service sent by the second cell.

For a different-frequency deployment scenario, the terminal device may determine, based on the configuration information of the local MBS service of the second cell, whether the local MBS service of the second cell is the local MBS service that the terminal device expects to receive or is receiving, and further, if the local MBS service of the second cell is the local MBS service that the terminal device expects to receive or is receiving, the terminal device increases the priority of the frequency layer where the local MBS service of the second cell is located, and performs cell measurement and cell reselection according to the adjusted frequency priority. Here, the terminal device performs cell reselection to the second cell, and receives the local MBS service sent by the second cell.

In the above solution, the terminal device increases the priority of the frequency layer where the local MBS service of the second cell is located, and has at least one of the following limitations:

limitation 1: if the terminal equipment determines that the local MBS service is about to be transmitted or has been transmitted based on the time information of the MBS service, the terminal equipment increases the priority of the frequency layer of the local MBS service of the second cell. If the terminal equipment determines that the local MBS service is not transmitted or has been transmitted over based on the time information of the MBS service, the terminal equipment does not increase the priority of the frequency layer where the local MBS service of the second cell is located.

Limitation 2: the configuration information of the local MBS service further includes: constraint information of frequency priority adjustment, the constraint information comprising at least one of: third indication information, wherein the third indication information is used for indicating whether frequency priority adjustment is performed or not; fourth indication information for indicating a start time and/or a duration for performing a frequency priority adjustment. And the terminal equipment determines whether to increase the priority of the frequency layer of the local MBS service of the second cell based on the constraint information.

Fig. 3 is a flowchart illustrating a second method for receiving a local MBS service according to an embodiment of the present application, where as shown in fig. 3, the method for receiving a local MBS service includes the following steps:

step 301: a first cell receives first notification information sent by a terminal device, wherein the first notification information is used for notifying the first cell of a local MBS service which the terminal device expects to receive or is receiving.

In the embodiment of the application, the terminal device is in a connected state.

In this embodiment of the present application, the first cell refers to a current cell, that is, a current serving cell of a terminal device.

In this embodiment of the present application, the first notification information is auxiliary information sent by a terminal device to a first cell, and is used to notify the first cell of a local MBS service that the terminal device expects to receive or is receiving.

Step 302: the first cell receives first configuration information sent by a second cell, wherein the first configuration information comprises configuration information of a local MBS service of the second cell.

In this embodiment, the second cell is a neighboring cell of the first cell, and the second cell supports a local MBS service.

In an optional manner of the present application, the first configuration information is carried in system broadcast information of the first cell. Specifically, the first cell broadcasts the first configuration information (i.e. the configuration information of the local MBS service of the second cell) through system broadcast information. Here, the system broadcast information is, for example, the first SIB in the above scheme.

The technical scheme of the embodiment of the application can be applied to the same-frequency deployment scene or different-frequency deployment scene, for example: the second cell is the same-frequency adjacent cell of the first cell, or the second cell is the different-frequency adjacent cell of the first cell.

In the embodiment of the present application, the configuration information of the local MBS service includes at least one of the following: service identification information of the MBS service, cell identification information for sending the MBS service, frequency layer information of the MBS service and time information of the MBS service.

In the above solution, the time information of the MBS service may have at least one of the following implementation manners:

4) In an optional manner, the time information of the MBS service in the above scheme is state information of a local MBS service, and the state information of the local MBS service is used to indicate that the local MBS service is in an upcoming state, or in an ongoing state, or in an already ended state.

Step 303: the first cell determines whether to select the second cell as a target cell for cell handover based on the first notification information and the first configuration information.

In an optional manner of this application, if the first cell determines, based on the first notification information and the first configuration information, that the local MBS service of the second cell is the local MBS service that the terminal device expects to receive or is receiving, it determines to select the second cell as a target cell for cell handover.

In an optional manner of this application, if the first cell determines, based on the first notification information and the first configuration information, that the local MBS service of the second cell is a local MBS service that the terminal device expects to receive or is receiving, and the local MBS service of the second cell is about to start or is in progress, it determines to select the second cell as a target cell for cell handover.

In the embodiment of the application, after the first cell determines to select the second cell as a target cell for cell handover, the terminal device is triggered to handover to the second cell, so that the terminal device receives the local MBS service of the second cell after completing the handover to the second cell.

The technical solutions of the embodiments of the present application are illustrated below with reference to specific application examples.

Application example 1

For the same-frequency deployment scenario, the frequency layers of the current cell (i.e., the first cell) where the terminal device resides and the neighboring cell (i.e., the second cell) are the same, and as shown in fig. 4, the frequency layers are both f1.

A) For terminal equipment in idle state or inactive state

1. The terminal equipment resides in the current cell, and the current cell does not belong to the area of the local MBS service. And the current cell broadcasts the configuration information of the local MBS service of the adjacent cell of the current cell in the system broadcast information. Further, the current cell may periodically broadcast the configuration information of the local MBS service of the neighboring cell.

The configuration information of the local MBS service of the neighboring cell of the current cell includes, but is not limited to, the following information:

service identification information of the MBS service, e.g. TMGI.

And sending cell identification information of the MBS service, such as PCI and cell NCGI.

Frequency layer information where the MBS service is located, e.g., band indication information, NR-ARFCN.

Time information of the MBS service.

In the above scheme, the time information of the MBS service may be absolute time information, such as year, month, day, hour, minute, second, and the like. The terminal device may obtain Coordinated Universal Time (UTC) from SIB9 as Time information of the MBS service.

In the above scheme, the time information of the MBS service may be relative time information, such as a countdown time for the start of the service. The units may be minutes, or hours, etc.

In the above scheme, the time information of the MBS service may be an SFN and/or a hyper frame number at which the service is to start. Here, 1024 SFN periods are one superframe number.

In the above solution, the time information of the MBS service may be state information used to indicate that the local MBS service is in an upcoming state, or in an ongoing state, or in an already ended state.

The configuration information of the local MBS service of the neighboring cell of the current cell further includes: and the terminal equipment reselects the effective information of the cell reselection condition and the cell reselection condition of the adjacent cell with the local MBS service from the current cell.

The conditions for cell reselection may be: and if the signal quality measured on the current cell is lower than a first configuration threshold and/or the signal quality measured on the cell with the local MBS service is higher than a second configuration threshold, triggering the cell to reselect to a target cell with the local MBS service. Here, the signal quality may be RSRP or RSRQ or SINR.

The validation information of the cell reselection condition includes at least one of: first indication information, wherein the first indication information is used for indicating whether the cell reselection condition is effective or not; second indication information indicating a start time and/or a duration for which the cell reselection condition is in effect.

If the first indication information indicates that the cell reselection condition is not valid, the terminal device may ignore the cell reselection condition, otherwise, the terminal device performs cell measurement and cell reselection according to the cell reselection condition. Meanwhile, optionally, the second indication information indicates a start time (e.g., a start SFN) at which the cell reselection condition is effective.

2. And the terminal equipment acquires the configuration information of the local MBS service information and executes cell selection and reselection according to the configuration information.

B) For the terminal equipment in the connection state

1. The terminal device informs the current cell of the local MBS service that the terminal device is interested in (or is called as expected to receive or receiving).

2. The configuration information of the local MBS service is interacted between the current cell and the adjacent cell supporting the local MBS service.

The configuration information of the local MBS service includes, but is not limited to, the following information:

service identification information of the MBS service, e.g., TMGI.

Time information of the MBS service.

In the above solution, the time information of the MBS service may be an SFN and/or a hyper frame number at which the service is to start. Here, 1024 SFN periods are one superframe number.

3. The current cell judges the switching of the terminal equipment according to the identification information of the local MBS service which the terminal equipment is interested in and the configuration information of the local MBS service notified by the adjacent cell.

Specifically, if the current cell determines that the local MBS service of the neighboring cell is not to be performed or does not receive indication information that the local MBS service broadcasted by the neighboring cell is to be started, the current cell does not need to consider the influence of receiving the local MBS service in the handover determination, otherwise, the current cell preferentially selects the cell transmitting the local MBS service as the handover target cell.

Application example two

For the scenario of deployment of pilot frequency, the frequency layers of the current cell (i.e., the first cell) and the neighboring cell (i.e., the second cell) where the terminal device resides are different, as shown in fig. 5, the frequency layer of the current cell is f3, and the frequency layer of the neighboring cell is f1.

A) For terminal equipment in idle state or inactive state

1. The terminal equipment resides in the current cell, and the current cell does not belong to the local MBS service area. And the current cell broadcasts the configuration information of the local MBS service of the adjacent cell of the current cell in the system broadcast information. Further, the current cell may periodically broadcast the configuration information of the local MBS service of the neighboring cell.

service identification information of the MBS service, e.g., TMGI.

Frequency layer information where the MBS service is located, such as frequency band indication information, NR-ARFCN.

Time information of the MBS service.

In the above solution, the time information of the MBS service may be relative time information, such as a countdown time for service start. The units may be minutes, or hours, etc.

In the above scheme, the time information of the MBS service may be an SFN and/or a hyper frame number at which the service is to start. Here, 1024 SFN periods are one hyper frame number.

2. The terminal equipment acquires the configuration information of the local MBS service, determines the highest priority of the frequency layer where the local MBS service which the terminal equipment is interested in (or is expected to receive or receiving) is located, and executes cell measurement and cell reselection according to the adjusted priority.

Optionally, the terminal device adjusts the frequency priority according to the rule, and the adjustment is performed according to the indication information in the system broadcast. For example, when the local MBS service is about to be transmitted or has been transmitted, the frequency priority is adjusted according to the above principle, otherwise, the adjustment is not needed. For another example: the frequency priority is adjusted according to the specified time constraint information.

B) For connected terminal equipment

1. The terminal equipment informs the current cell of the local MBS service which is interested in the terminal equipment (or is expected to receive or receiving).

service identification information of the MBS service, e.g. TMGI.

Time information of the MBS service.

Fig. 6 is a schematic structural configuration diagram of a device for receiving a local MBS service according to an embodiment of the present application, which is applied to a terminal device, and as shown in fig. 6, the device for receiving a local MBS service includes:

a receiving unit 601, configured to receive first configuration information sent by a first cell, where the first configuration information includes configuration information of a local MBS service of a second cell, and the second cell is a neighboring cell of the first cell;

a reselection unit 602, configured to perform cell reselection to the second cell based on configuration information of a local MBS service of the second cell;

the receiving unit 601 is further configured to receive the local MBS service sent by the second cell.

In an optional manner, in a case that the second cell is an intra-frequency neighboring cell of the first cell, the configuration information of the local MBS service includes at least one of:

service identification information of the MBS service, cell identification information for sending the MBS service, frequency layer information of the MBS service, time information of the MBS service, cell reselection conditions for the terminal equipment to reselect from the first cell to the second cell, and effective information of the cell reselection conditions.

In an optional manner, the cell reselection condition includes:

and if the signal quality measured on the first cell is lower than a first configuration threshold and/or the signal quality measured on the second cell is higher than a second configuration threshold, triggering the terminal equipment to reselect from the first cell to the second cell.

In an alternative, the signal quality is one of: RSRP, RSRQ, SINR.

In an alternative, the validation information of the cell reselection condition includes at least one of:

In an optional manner, in a case that the second cell is an inter-frequency neighboring cell of the first cell, the configuration information of the local MBS service includes at least one of the following:

service identification information of the MBS service, cell identification information for sending the MBS service, frequency layer information of the MBS service and time information of the MBS service.

In an optional manner, the apparatus further comprises:

an adjusting unit (not shown in the figure), configured to increase a priority of a frequency layer where a local MBS service of the second cell is located if the local MBS service of the second cell is a local MBS service that the terminal device expects to receive or is receiving;

the reselecting unit 602 is configured to perform cell measurement and cell reselection according to the adjusted frequency priority.

In an optional manner, the adjusting unit is configured to increase the priority of the frequency layer where the local MBS service of the second cell is located if it is determined that the local MBS service is to be transmitted or has been transmitted based on the time information of the MBS service.

In an optional manner, the configuration information of the local MBS service further includes: constraint information of frequency priority adjustment, the constraint information comprising at least one of:

third indication information, wherein the third indication information is used for indicating whether frequency priority adjustment is performed or not;

fourth indication information for indicating a start time and/or a duration for performing a frequency priority adjustment.

In an optional manner, the time information of the MBS service is absolute time information, and the absolute time information is used to determine the start time of the local MBS service.

In an optional manner, the time information of the MBS service is relative time information, and the relative time information is used to determine a time length from the start time of the local MBS service to the current time.

In an optional manner, the time information of the MBS service is time domain information, and the time domain information is used to determine a time domain starting time of a local MBS service.

In an optional manner, the time domain starting time of the local MBS service is represented by at least one of: SFN, superframe number.

In an optional manner, the time information of the MBS service is state information of a local MBS service, where the state information of the local MBS service is used to indicate that the local MBS service is in an upcoming state, or in an ongoing state, or in an already ended state.

In an optional manner, the terminal device is in an idle state or an inactive state.

Those skilled in the art should understand that the above-mentioned related description of the apparatus for receiving the local MBS service in the embodiment of the present application may be understood by referring to the related description of the method for receiving the local MBS service in the embodiment of the present application.

Fig. 7 is a schematic structural diagram of a device for receiving local MBS service according to an embodiment of the present application, which is applied to a network device (e.g., a base station where a first cell is located), and as shown in fig. 7, the device for receiving local MBS service includes:

a receiving unit 701, configured to receive first notification information sent by a terminal device, where the first notification information is used to notify a first cell of a local MBS service that the terminal device desires to receive or is receiving; receiving first configuration information sent by a second cell, wherein the first configuration information comprises configuration information of a local MBS service of the second cell;

a determining unit 702, configured to determine whether to select the second cell as a target cell for cell handover based on the first notification information and the first configuration information.

In an optional manner, the configuration information of the local MBS service includes at least one of:

In an optional manner, the time information of the MBS service is relative time information, and the relative time information is used to determine a time length between the start time of the local MBS service and the current time.

In an optional manner, the time information of the MBS service is status information of a local MBS service, and the status information of the local MBS service is used to indicate that the local MBS service is in an upcoming state, or in an ongoing state, or in an already ended state.

In an optional manner, the determining unit 702 is configured to determine to select the second cell as a cell handover target cell if it is determined, based on the first notification information and the first configuration information, that the local MBS service of the second cell is the local MBS service that the terminal device expects to receive or is receiving.

In an optional manner, the determining unit 702 is configured to determine to select the second cell as a target cell for cell handover if it is determined, based on the first notification information and the first configuration information, that the local MBS service of the second cell is a local MBS service that the terminal device expects to receive or is receiving, and the local MBS service of the second cell is about to start or is ongoing.

In an optional manner, the terminal device is a terminal device in a connected state.

It should be understood by those skilled in the art that the foregoing description of the apparatus for receiving a local MBS service in the embodiment of the present application may be understood by referring to the description of the method for receiving a local MBS service in the embodiment of the present application.

Fig. 8 is a schematic structural diagram of a communication device 800 according to an embodiment of the present application. The communication device may be a terminal device or a network device, and the communication device 800 shown in fig. 8 includes a processor 810, and the processor 810 may call and execute a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 8, the communication device 800 may also include a memory 820. From the memory 820, the processor 810 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 820 may be a separate device from the processor 810 or may be integrated into the processor 810.

Optionally, as shown in fig. 8, the communication device 800 may further include a transceiver 830, and the processor 810 may control the transceiver 830 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 830 may include a transmitter and a receiver, among others. The transceiver 830 may further include one or more antennas.

Optionally, the communication device 800 may specifically be a network device according to this embodiment, and the communication device 800 may implement a corresponding process implemented by the network device in each method according to this embodiment, which is not described herein again for brevity.

Optionally, the communication device 800 may specifically be a mobile terminal/terminal device according to this embodiment, and the communication device 800 may implement a corresponding process implemented by the mobile terminal/terminal device in each method according to this embodiment, which is not described herein again for brevity.

Fig. 9 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 900 shown in fig. 9 includes a processor 910, and the processor 910 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 9, the chip 900 may further include a memory 920. From the memory 920, the processor 910 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 920 may be a separate device from the processor 910, or may be integrated in the processor 910.

Optionally, the chip 900 may further comprise an input interface 930. The processor 910 can control the input interface 930 to communicate with other devices or chips, and in particular, can obtain information or data transmitted by other devices or chips.

Optionally, the chip 900 may further include an output interface 940. The processor 910 can control the output interface 940 to communicate with other devices or chips, and in particular, can output information or data to other devices or chips.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the chip may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

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

Fig. 10 is a schematic block diagram of a communication system 1000 provided in an embodiment of the present application. As shown in fig. 10, the communication system 1000 includes a terminal device 1010 and a network device 1020.

The terminal device 1010 may be configured to implement the corresponding function implemented by the terminal device in the foregoing method, and the network device 1020 may be configured to implement the corresponding function implemented by the network device in the foregoing method, for brevity, no further description is provided here.

It should be understood that the processor of the embodiments 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 performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off the shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components. The various methods, steps, and logic blocks disclosed 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 the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in ram, flash, rom, prom, or eprom, registers, etc. as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), enhanced Synchronous SDRAM (ESDRAM), synchronous link SDRAM (SLDRAM), and Direct Rambus 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 memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), synchronous Link DRAM (SLDRAM), direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing the computer program.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables a computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.

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

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

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

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 implementation. 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 is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into 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 solutions of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the 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 of the changes or substitutions within the technical scope of the present application, and shall 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 of receiving a local multimedia multicast service, MBS, service, the method comprising:

a terminal device receives first configuration information sent by a first cell, wherein the first configuration information comprises configuration information of a local MBS service of a second cell, and the second cell is a neighboring cell of the first cell;

and the terminal equipment performs cell reselection to the second cell and receives the local MBS service sent by the second cell based on the configuration information of the local MBS service of the second cell.
The method according to claim 1, wherein in case that the second cell is an intra-frequency neighboring cell of the first cell, the configuration information of the local MBS service includes at least one of:

the method comprises the steps of service identification information of the MBS service, cell identification information for sending the MBS service, frequency layer information of the MBS service, time information of the MBS service, cell reselection conditions for reselecting the terminal equipment from the first cell to the second cell, and effective information of the cell reselection conditions.
The method of claim 2, wherein the cell reselection condition comprises:

and if the signal quality measured on the first cell is lower than a first configuration threshold and/or the signal quality measured on the second cell is higher than a second configuration threshold, triggering the terminal equipment to reselect from the first cell to the second cell.
The method of claim 3, wherein the signal quality is one of: reference signal received power, RSRP, reference signal received quality, RSRQ, signal to interference and noise ratio, SINR.
The method of any of claims 2 to 4, wherein the validation information of the cell reselection conditions comprises at least one of:

first indication information, wherein the first indication information is used for indicating whether the cell reselection condition is effective or not;

second indication information indicating a start time and/or a duration for which the cell reselection condition is in effect.
The method of claim 1, wherein in the case that the second cell is an inter-frequency neighbor cell of the first cell, the configuration information of the local MBS service includes at least one of:

service identification information of the MBS service, cell identification information for sending the MBS service, frequency layer information of the MBS service and time information of the MBS service.
The method of claim 6, wherein the method further comprises:

if the local MBS service of the second cell is the local MBS service expected to be received or being received by the terminal equipment, the terminal equipment increases the priority of the frequency layer of the local MBS service of the second cell, and executes cell measurement and cell reselection according to the adjusted frequency priority.
The method of claim 7, wherein the step of the terminal device increasing the priority of the frequency layer where the local MBS service of the second cell is located comprises:

if the terminal equipment determines that the local MBS service is about to be transmitted or has been transmitted based on the time information of the MBS service, the terminal equipment increases the priority of the frequency layer where the local MBS service of the second cell is located.
The method of claim 6, wherein the configuration information of the local MBS service further comprises: constraint information of frequency priority adjustment, the constraint information comprising at least one of:

third indication information, wherein the third indication information is used for indicating whether frequency priority adjustment is performed or not;

fourth indication information for indicating a start time and/or a duration for performing a frequency priority adjustment.
The method according to any of claims 2-9, wherein the time information of the MBS service is absolute time information, which is used to determine the start time of a local MBS service.
The method of any of claims 2 to 9, wherein the time information of the MBS service is relative time information, and the relative time information is used for determining a time length from a start time of a local MBS service to a current time.
The method according to any of claims 2 to 9, wherein the time information of the MBS service is time domain information, and the time domain information is used for determining a time domain starting time of a local MBS service.
The method of claim 12, wherein the time domain start time of the local MBS service is represented by at least one of: system frame number SFN, hyper frame number.
The method according to any of claims 2 to 9, wherein the time information of the MBS service is state information of a local MBS service, and the state information of the local MBS service is used to indicate that the local MBS service is in an upcoming state, or in an ongoing state, or in an already ended state.
The method according to any of claims 1 to 14, wherein the terminal device is a terminal device in an idle state or an inactive state.
A method for receiving a local MBS service, the method comprising:

a first cell receives first notification information sent by a terminal device, wherein the first notification information is used for notifying the first cell of a local MBS service which the terminal device expects to receive or is receiving;

the first cell receives first configuration information sent by a second cell, wherein the first configuration information comprises configuration information of a local MBS service of the second cell;

the first cell determines whether to select the second cell as a target cell for cell handover based on the first notification information and the first configuration information.
The method of claim 16, wherein the configuration information of the local MBS service includes at least one of:

service identification information of the MBS service, cell identification information for sending the MBS service, frequency layer information of the MBS service and time information of the MBS service.
The method of claim 17, wherein the time information of the MBS service is absolute time information, and the absolute time information is used for determining a start time of a local MBS service.
The method of claim 17, wherein the time information of the MBS service is relative time information, and the relative time information is used for determining a time length from a start time of a local MBS service to a current time.
The method of claim 17, wherein the time information of the MBS service is time domain information, and the time domain information is used for determining a time domain starting time of a local MBS service.
The method of claim 20, wherein the time domain start time of the local MBS service is represented by at least one of: SFN, hyper frame number.
The method of claim 17, wherein the time information of the MBS service is status information of a local MBS service, and the status information of the local MBS service is used to indicate that the local MBS service is in an upcoming state, or in an ongoing state, or in an already ended state.
The method of any of claims 16 to 22, wherein the first cell determining whether to select the second cell as a target cell for cell handover based on the first notification information and the first configuration information comprises:

and if the first cell determines that the local MBS service of the second cell is the local MBS service which is expected to be received or is being received by the terminal equipment based on the first notification information and the first configuration information, determining to select the second cell as a target cell for cell switching.
The method of any of claims 16 to 22, wherein the first cell determining whether to select the second cell as a target cell for cell handover based on the first notification information and the first configuration information comprises:

and if the first cell determines that the local MBS service of the second cell is the local MBS service expected to be received or being received by the terminal equipment and the local MBS service of the second cell is about to start or be in progress based on the first notification information and the first configuration information, determining to select the second cell as a target cell for cell switching.
The method of any of claims 16 to 24, wherein the terminal device is a terminal device in a connected state.
An apparatus for receiving a local MBS service, the apparatus comprising:

a receiving unit, configured to receive first configuration information sent by a first cell, where the first configuration information includes configuration information of a local MBS service of a second cell, and the second cell is a neighboring cell of the first cell;

a reselection unit, configured to perform cell reselection to the second cell based on configuration information of a local MBS service of the second cell;

the receiving unit is further configured to receive the local MBS service sent by the second cell.
The apparatus of claim 26, wherein in a case that the second cell is an intra-frequency neighbor cell of the first cell, the configuration information of the local MBS service includes at least one of:

service identification information of the MBS service, cell identification information for sending the MBS service, frequency layer information of the MBS service, time information of the MBS service, cell reselection conditions for the terminal equipment to reselect from the first cell to the second cell, and effective information of the cell reselection conditions.
The apparatus of claim 27, wherein the cell reselection condition comprises:

and if the signal quality measured on the first cell is lower than a first configuration threshold and/or the signal quality measured on the second cell is higher than a second configuration threshold, triggering the terminal equipment to reselect from the first cell to the second cell.
The apparatus of claim 28, wherein the signal quality is one of: RSRP, RSRQ, SINR.
The apparatus of any of claims 27 to 29, wherein the validation information of the cell reselection condition comprises at least one of:

first indication information, wherein the first indication information is used for indicating whether the cell reselection condition is effective or not;

second indication information indicating a start time and/or a duration for which the cell reselection condition is in effect.
The apparatus of claim 26, wherein in the case that the second cell is an inter-frequency neighbor cell of the first cell, the configuration information of the local MBS service includes at least one of:

service identification information of the MBS service, cell identification information for sending the MBS service, frequency layer information of the MBS service and time information of the MBS service.
The apparatus of claim 31, wherein the apparatus further comprises:

an adjusting unit, configured to increase a priority of a frequency layer where a local MBS service of the second cell is located if the local MBS service of the second cell is a local MBS service that the terminal device expects to receive or is receiving;

and the reselection unit is used for executing cell measurement and cell reselection according to the adjusted frequency priority.
The apparatus of claim 32, wherein the adjusting unit is configured to increase the priority of the frequency layer in which the local MBS service of the second cell is located if it is determined that the local MBS service is to be transmitted or has been transmitted based on the time information of the MBS service.
The apparatus of claim 31, wherein the configuration information of the local MBS service further comprises: constraint information of frequency priority adjustment, the constraint information comprising at least one of:

third indication information, wherein the third indication information is used for indicating whether frequency priority adjustment is performed or not;

fourth indication information, the fourth indication information being used for indicating a start time and/or a duration for performing the frequency priority adjustment.
The apparatus of any of claims 27 to 34, wherein the time information of the MBS service is absolute time information, and the absolute time information is used for determining a start time of a local MBS service.
The apparatus of any of claims 27 to 34, wherein the time information of the MBS service is relative time information, and the relative time information is used to determine a duration of a start time of a local MBS service from a current time.
The apparatus of any of claims 27 to 34, wherein the time information of the MBS service is time domain information, and the time domain information is used to determine a time domain start time of a local MBS service.
The apparatus of claim 37, wherein the time domain start time of the local MBS service is represented by at least one of: SFN, superframe number.
The apparatus of any of claims 27 to 34, wherein the time information of the MBS service is status information of a local MBS service, and the status information of the local MBS service is used to indicate that the local MBS service is in an upcoming state, or in an ongoing state, or in an already ended state.
The apparatus of any of claims 26 to 39, wherein the terminal device is a terminal device in an idle state or an inactive state.
An apparatus for receiving a local MBS service, the apparatus comprising:

a receiving unit, configured to receive first notification information sent by a terminal device, where the first notification information is used to notify a first cell of a local MBS service that the terminal device desires to receive or is receiving; receiving first configuration information sent by a second cell, wherein the first configuration information comprises configuration information of a local MBS service of the second cell;

a determining unit, configured to determine whether to select the second cell as a target cell for cell handover based on the first notification information and the first configuration information.
The apparatus of claim 41, wherein the configuration information of the local MBS service comprises at least one of:

service identification information of the MBS service, cell identification information for sending the MBS service, frequency layer information of the MBS service and time information of the MBS service.
The apparatus of claim 42, wherein the time information of the MBS service is absolute time information used for determining the start time of a local MBS service.
The apparatus of claim 42, wherein the time information of the MBS service is relative time information, and the relative time information is used for determining the time length of the starting time of the local MBS service from the current time.
The apparatus of claim 42, wherein the time information of the MBS service is time domain information, and the time domain information is used for determining a time domain starting time of a local MBS service.
The apparatus of claim 45, wherein the time domain start time of the local MBS service is represented by at least one of: SFN, superframe number.
The apparatus of claim 42, wherein the time information of the MBS service is state information of a local MBS service, and the state information of the local MBS service is used for indicating that the local MBS service is in an upcoming state, in an ongoing state, or in an already ended state.
The apparatus of any of claims 41 to 47, wherein the determining unit is configured to determine to select the second cell as a cell handover target cell if it is determined, based on the first notification information and the first configuration information, that the local MBS service of the second cell is a local MBS service that the terminal device desires to receive or is receiving.
The apparatus of any of claims 41 to 47, wherein the determining unit is configured to determine to select the second cell as a target cell for cell handover if it is determined, based on the first notification information and the first configuration information, that the local MBS service of the second cell is a local MBS service that the terminal device desires to receive or is receiving, and the local MBS service of the second cell is about to start or is ongoing.
The apparatus of any of claims 41-49, wherein the terminal device is a connected terminal device.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 1 to 15.
A network device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 16 to 25.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 1 to 15.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 16 to 25.
A computer-readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 15.
A computer-readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 16 to 25.
A computer program product comprising computer program instructions to cause a computer to perform the method of any one of claims 1 to 15.
A computer program product comprising computer program instructions to cause a computer to perform the method of any of claims 16 to 25.
A computer program for causing a computer to perform the method of any one of claims 1 to 15.
A computer program for causing a computer to perform the method of any one of claims 16 to 25.