WO2024012304A1

WO2024012304A1 - Multicast service receiving method and apparatus, and terminal and network-side device

Info

Publication number: WO2024012304A1
Application number: PCT/CN2023/105410
Authority: WO
Inventors: 刘佳敏
Original assignee: 维沃移动通信有限公司
Priority date: 2022-07-15
Filing date: 2023-06-30
Publication date: 2024-01-18
Also published as: CN117440327A

Abstract

The present application belongs to the technical field of communications. Disclosed are a multicast service receiving method and apparatus, and a terminal and a network-side device. The multicast service receiving method in the embodiments of the present application comprises: a terminal determining a first cell or a target frequency point on the basis of at least one of network-side signaling, a preset rule and a terminal capability; and the terminal residing in the first cell in an inactive state, and receiving a first multicast service, wherein if the target frequency point is determined, the first cell in which the terminal resides is determined on the basis of the target frequency point.

Description

Multicast service receiving method, device, terminal and network side equipment

Cross-references to related applications

This application claims priority to Chinese Patent Application No. 202210836821.3 filed in China on July 15, 2022, the entire content of which is incorporated herein by reference.

Technical field

The present application belongs to the field of communication technology, and specifically relates to a multicast service receiving method, device, terminal and network side equipment.

Background technique

Currently, communication systems only support terminals in the connected state to receive multicast services. This may cause a large number of terminals to remain in the connected state to receive multicast services, resulting in a heavy network load.

Contents of the invention

Embodiments of the present application provide a multicast service receiving method, device, terminal and network side equipment, which can solve the problem of heavy network load.

The first aspect provides a multicast service receiving method, including:

The terminal determines the first cell or the target frequency point based on at least one of network side signaling, preset rules and terminal capabilities;

The terminal camps on the first cell in an inactive state and receives the first multicast service;

Wherein, when the target frequency point is determined, the first cell where the terminal camps is determined based on the target frequency point.

In the second aspect, a multicast service receiving method is provided, including:

The network side device sends network side signaling to the terminal, and the network side signaling is used by the terminal to determine the first cell or target frequency point;

Wherein, the first cell is a cell where the terminal camps in an inactive state and receives the first multicast service; or

The target frequency point is used by the terminal to determine a cell in which to camp and receive the first multicast service in an inactive state.

In a third aspect, a multicast service receiving device is provided, including:

A determination module configured to determine the first cell or the target frequency point based on at least one of network side signaling, preset rules and terminal capabilities;

A receiving module, configured to camp on the first cell in an inactive state and receive the first multicast service;

In a fourth aspect, a multicast service receiving device is provided, including:

A sending module, configured to send network side signaling to the terminal, where the network side signaling is used by the terminal to determine the first cell or target frequency point;

In a fifth aspect, a terminal is provided, including a processor and a memory. The memory stores programs or instructions that can be run on the processor. When the program or instructions are executed by the processor, the embodiments of the present application are implemented. The steps of the multicast service receiving method on the terminal side are provided.

In a sixth aspect, a terminal is provided, including a processor and a communication interface, wherein the processor or communication interface is configured to receive a first determination based on at least one of network side signaling, preset rules and terminal capabilities. cell or target frequency point; the communication interface is also used to camp on the first cell in an inactive state and receive the first multicast service; wherein, when the target frequency point is determined, the terminal camps on The first cell is determined based on the target frequency point.

In a seventh aspect, a network-side device is provided, including a processor and a memory. The memory stores programs or instructions that can be run on the processor. When the program or instructions are executed by the processor, the present application is implemented. The embodiment provides the steps of the multicast service receiving method on the network side device side.

In an eighth aspect, a network side device is provided, including a processor and a communication interface, wherein the communication interface is used to send network side signaling to a terminal, and the network side signaling is used by the terminal to determine the first cell. Or a target frequency point; wherein, the first cell is a cell where the terminal camps in the inactive state and receives the first multicast service; or the target frequency point is used by the terminal to determine whether the terminal is in the inactive state. The cell where the first multicast service resides and receives.

In a ninth aspect, a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the multicast service receiving method on the terminal side provided by the embodiment of the present application is implemented. or, when the program or instruction is executed by the processor, the steps of implementing the multicast service receiving method on the network side device side provided by the embodiment of the present application.

In a tenth aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the terminal side provided by the embodiments of the present application. The multicast service receiving method, or the processor is configured to run a program or instructions to implement the multicast service receiving method on the network side device side provided in the embodiment of the present application.

In an eleventh aspect, a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the methods provided by the embodiments of the present application. The steps of the multicast service receiving method on the terminal side, or the computer program/program product is executed by at least one processor to implement the steps of the multicast service receiving method on the network side device side provided by the embodiment of the present application.

In a twelfth aspect, a frequency domain resource determination system is provided, including: a terminal and a network side device. The terminal can be used to perform the steps of the multicast service receiving method on the terminal side provided by the embodiment of the present application. The network side The device may be configured to perform the steps of the multicast service receiving method on the network side device side provided in the embodiment of the present application.

In this embodiment of the present application, the terminal determines the first cell or the target frequency point based on at least one of network side signaling, preset rules and terminal capabilities; the terminal camps on the first cell in an inactive state , and receive the first multicast service; Wherein, when the target frequency point is determined, the first cell where the terminal camps is determined based on the target frequency point. This can support the terminal to receive multicast services in the inactive state, thus reducing the network load.

Description of drawings

Figure 1 is a block diagram of a wireless communication system applicable to the embodiment of the present application;

Figure 2 is a flow chart of a multicast service receiving method provided by an embodiment of the present application;

Figure 3 is a flow chart of another multicast service receiving method provided by an embodiment of the present application;

Figure 4 is a structural diagram of a multicast service receiving device provided by an embodiment of the present application;

Figure 5 is a structural diagram of a multicast service receiving device provided by an embodiment of the present application;

Figure 6 is a structural diagram of a communication device provided by an embodiment of the present application;

Figure 7 is a structural diagram of a terminal provided by an embodiment of the present application;

Figure 8 is a structural diagram of a network side device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the scope of protection of this application.

The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and "second" are distinguished objects It is usually one type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the related objects are in an "or" relationship.

It is worth pointing out that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in much of the following description, but these techniques can also be applied to applications other than NR system applications, such as 6th ^generation Generation, 6G) communication system.

Figure 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop Laptop Computer, also known as notebook computer, Personal Digital Assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), Mobile Internet Device , MID), augmented reality (AR)/virtual reality (VR) equipment, robots, wearable devices (Wearable Devices), vehicle user equipment (VUE), pedestrian terminals (Pedestrian User Equipment) , PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), game consoles, personal computers (PC), teller machines or self-service machines and other terminal-side devices, wearable Equipment includes: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network side device 12 may include an access network device or a core network device, where the network side device 12 may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a wireless device. access network unit. The network side device 12 may include a base station, a Wireless Local Area Network (WLAN) access point or a WiFi node, etc. The base station may be called a Node B, an evolved Node B (eNB), an access point, a base transceiver station ( Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B-node, home evolved B-node, transmitting and receiving point ( Transmitting Receiving Point (TRP) or some other appropriate terminology in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only in the NR system The base station is introduced as an example, and the specific type of base station is not limited. Core network equipment may include but is not limited to at least one of the following: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Service Discovery function (Edge Application Server Discovery Function, EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), centralized network configuration ( Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (Local NEF, or L-NEF), Binding Support Function (Binding Support Function, BSF), application function (Application Function, AF), etc. It should be noted that in the embodiment of this application, only the core network equipment in the NR system is used as an example for introduction, and the specific type of the core network equipment is not limited.

The multicast service receiving method, device, terminal and network side equipment provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings through some embodiments and application scenarios.

Please refer to Figure 2. Figure 2 is a flow chart of a multicast service receiving method provided by an embodiment of the present application. As shown in Figure 2, it includes the following steps, including:

201. The terminal determines the first cell or terminal based on at least one of network side signaling, preset rules and terminal capabilities. Target frequency point.

The above-mentioned network side signaling may be that the terminal receives signaling sent dynamically, statically or semi-statically by the network side device. The signaling may explicitly or implicitly indicate the above-mentioned first cell or target frequency point, or the signaling may explicitly indicate Or implicitly instruct the terminal to preferentially select the first cell or target frequency point.

The above preset rules may be rules defined by the protocol, or rules configured for the terminal on the network side, and may also be called default rules. The above rules may explicitly or implicitly indicate the above-mentioned first cell or target frequency point, or may explicitly or implicitly instruct the terminal to preferentially select the above-mentioned first cell or target frequency point.

The terminal capability may be the terminal's ability to receive multicast services. For example, the terminal capability may indicate that the terminal can receive multicast services in the first cell or target frequency point.

Through at least one of the above preset rules and terminal capabilities, the terminal can determine the above-mentioned first cell or target frequency point in a default manner.

It should be noted that, in some embodiments, the terminal can determine the above-mentioned first cell or target frequency point based on network side signaling, preset rules and terminal capabilities. For example, the network side signaling indicates that the terminal preferentially adopts Preset rules, and the terminal then uses the rules to determine the above-mentioned first cell or target frequency point. For example, the terminal determines the above-mentioned first cell or target frequency point among multiple cells or target frequency points prioritized by network side signaling or preset rules based on terminal capabilities. Cell or target frequency point, etc.

The above-mentioned first cell is a cell in which the terminal is camped in an inactive state and can receive the first multicast service.

The above-mentioned target frequency point is a frequency point where the terminal is camped in an inactive state and can receive the first multicast service.

The above determination of the first cell or the target frequency point may be to determine the first cell or the target frequency point during the camping process, the cell selection process or the cell reselection process.

Step 201 may be to obtain cell camping information and/or cell reselection information in a non-connected state based on at least one of network side signaling, preset rules and terminal capabilities to determine the first cell or target frequency point.

202. The terminal camps on the first cell in an inactive state and receives the first multicast service;

The above-mentioned step 202 may be that the terminal camps on the above-mentioned first cell when it is released from the connected state to the inactive state.

When step 201 determines the above-mentioned first cell, step 202 directly camps on the first cell in the inactive state and receives the first multicast service; when step 201 determines the above-mentioned target frequency point, step 202 determines based on the target frequency point. The above-mentioned first cell camps on the first cell in an inactive state and receives the first multicast service.

In the embodiment of the present application, the above steps can support the terminal to receive multicast services in the inactive state. The network load of the terminal in the inactive state is less than the network load of the terminal in the connected state. Therefore, the embodiment of the present application can reduce Network load. In addition, for the terminal, the complexity and power consumption of the inactive state are lower than those of the connected state. Therefore, the power consumption of the terminal can also be reduced.

As an optional implementation manner, the first cell is a multicast cell that sends the first multicast service; or

The first cell is a cell (non-Multicast cell) that does not send the first multicast service, and when the terminal is camped in the first cell, the terminal can receive the first multicast service .

When the first cell is a cell that does not send the first multicast service, the terminal may be able to camp in other cells or frequencies outside the multicast service cell, but at the same time be able to receive multicast signals from the multicast service cell. business. For example, a terminal with high receiving capability can camp in one cell and receive services from another cell or frequency at the same time.

In this embodiment, since the first cell can be a multicast service cell or a non-multicast service cell, network load balancing can be performed through these two cells. For example, the network load of the multicast service cell is relatively heavy. Then configure the terminal to camp in a non-multicast service cell to receive multicast services.

As an optional implementation manner, the network side signaling includes first indication information, and the first indication information is used to indicate at least one of the following:

Prioritize camping in the first cell;

Priority is given to camping on the target frequency point.

The above-mentioned first indication information may explicitly or implicitly indicate at least one of the above-mentioned items.

The above-mentioned preferential camping on the above-mentioned first cell may mean that the terminal preferentially camps on the first cell during the camping process, cell selection process or cell reselection process; for example, the above-mentioned first indication information indicates in an explicit or implicit manner Terminals preferentially camp in cells that send multicast services.

The above-mentioned priority of camping based on the target frequency point may be that the terminal preferentially camps on the target frequency point during the camping process, cell selection process or cell reselection process; for example: the above-mentioned first indication information is explicitly or implicitly The method instructs the terminal to preferentially camp on the frequency point for sending multicast services.

As an optional implementation, network-side signaling includes but is not limited to at least one of the following:

Public signaling and dedicated signaling.

In some embodiments, the first indication information included in the public signaling is valid for all terminals that receive the public signaling; or, the first indication information included in the public signaling is valid for all terminals that receive the public signaling. The public signaling is valid for the first type of terminal, and the terminal is the first type of terminal.

The above-mentioned first type of terminal may include: low-capability terminals (Device with Reduced Capability, RedCap), low-cost terminals (Low-Cost), Internet of Things (Internet of Things, IoT) terminals and other terminals with lower capabilities.

In addition, the first type may be explicitly or implicitly indicated by the network side signaling.

In some implementations, the first indication information included in the above public signaling is valid for the first multicast service.

In this implementation manner, the multicast service generated by the first indication information may be indicated by a service identifier of the multicast service or a Temporary Mobile Group Identity (TMGI). Alternatively, the multicast service generated by the first indication information can be indicated by the service characteristics of the multicast service. For example, the service characteristics can be quality of service (QoS) characteristics, such as the block error rate is lower than the threshold 1 and/or Or the service delay is lower than threshold 2, etc., then these multicast services are supported to be prioritized in the first cell, and other services that do not meet the characteristics are not allowed.

In some embodiments, the dedicated signaling is dedicated signaling issued by the serving cell in the connected state of the terminal.

Since the dedicated signaling is issued by the serving cell, and for the terminal's serving cell, the serving cell has a relatively detailed grasp of the terminal's own situation and the current situation of the network, so it can make comprehensive judgments and evaluations, and reasonably configure the terminal. To achieve a reasonable compromise between cell load and terminal performance.

In some embodiments, the first indication information is the indication information carried in the first information field of the dedicated signaling, or the first indication information is the indication carried in the second information field of the dedicated signaling. information;

Wherein, the first information field includes at least one of the following:

The redirection domain defined in the protocol for the dedicated signaling, and the cell reselection configuration domain defined in the protocol for the dedicated signaling;

Wherein, the second information field is at least one information field newly defined in the dedicated signaling.

The above-mentioned first information field carrying the first indication information can be understood as multiplexing at least one of the redirection field and the cell reselection configuration field, which can reduce the complexity of the terminal receiving the multicast service in the inactive state.

The above-mentioned second information field carrying the first indication information can be understood as newly defining an information field in the dedicated signaling, thereby improving the flexibility of the dedicated signaling indication. In addition, the above-mentioned newly defined information field may be a newly defined redirection and/or cell reselection configuration field, etc.

In some embodiments, when the first indication information is the indication information carried in the first information field of the dedicated signaling:

The dedicated signaling also includes second indication information, the second indication information is used to indicate the validity time of the first indication information; and/or

The dedicated signaling further includes third indication information, and the third indication information is used to instruct the first information domain to take effect on the first multicast service.

The above-mentioned first information field taking effect on the first multicast service means that the indication information carried in the first information field takes effect on the first multicast service.

In this embodiment, the effect of accurately controlling terminal camping and/or cell reselection can be achieved through the above valid time. In addition, the above-mentioned valid time may represent the sending time of the above-mentioned first multicast service.

The third indication information may be used to indicate that the first information domain is effective for the first multicast service by indicating the redirection domain and/or the cell reselection configuration domain in the dedicated signaling through the third indication information. Configure domains for redirection domains and/or cell reselection generated for multicast services.

In some implementations, the third indication information is used to indicate that the first information domain is effective for all multicast services; or

The third indication information is used to indicate at least one multicast service. The indication information carried in the first information field is effective for the at least one multicast service. The at least one multicast service includes the first Multicast services.

The fact that the above first information domain is effective for all multicast services can be understood to mean that for receiving any multicast service, the terminal will camp in accordance with the parking mode indicated by the instruction information carried in the first information domain.

The above instruction information carried in the first information field is effective for the at least one multicast service. It can be understood that the terminal only follows the instruction information carried in the first information field when receiving the at least one multicast service. the resident party The remaining multicast services may not be camped according to the parking mode indicated by the indication information carried in the first information field.

For example, the indication information carried in the first information field is configured with 1 bit to be effective for all multicast services, or the indication information carried in the first information field is indicated to be effective for at least one of the above multicast services through a multicast service identifier list or a service characteristic list. The business takes effect.

In this embodiment, by taking effect on all multicast services or at least one multicast service, the effect of accurately controlling terminal camping and/or cell reselection can be achieved.

In some embodiments, when the first indication information is the indication information carried in the second information field of the dedicated signaling:

The second information domain is effective for all multicast services; or

The dedicated signaling also includes fourth indication information. The fourth indication information is used to indicate that the second information domain is effective for at least one multicast service. The at least one multicast service includes the first multicast service. broadcast business.

The above second information domain may be effective for all multicast services. By default, the second information domain is effective for all multicast services.

Validating the at least one multicast service may include instructing the first information domain to validate the at least one multicast service through a multicast service identifier list or a service characteristic list.

An example is as follows:

This embodiment mainly describes cell camping and/or cell reselection rules, which may be as follows:

For an inactive UE that receives multicast services, it is most convenient to receive multicast services when it can stay in the cell where the current multicast service is located when it is released from the connected state to the inactive state. a situation.

In order to be able to reside in the cell where the multicast service is located (i.e. multicast cell), it can be achieved through the following methods:

Explicit signaling tells the terminal to preferentially reside on the multicast cell.

Among them, explicit signaling methods can be divided into two types: public signaling and dedicated signaling:

Common signaling methods, such as in the System Information Block (SIB), configure the multicast cell to support or allow the terminal to be selected to camp preferentially because it needs to receive multicast services in the Inactive state by explicitly configuring the domain.

This configuration can be effective for all terminals, that is, once configured, all terminals that are released to the Inactive state to receive multicast services can choose to camp in this cell first.

This configuration can also be effective for specific types of terminals. For example, it is only effective for terminals with lower capabilities such as RedCap, Low-Cost, and IoT. The terminal types to which this configuration is applicable are explicitly or implicitly stated. Among them, the explicit method may mean carrying the targeted terminal type in the SIB field, and the implicit method may mean not carrying the specific terminal type, but clarifying the terminal range targeted by the field in the description in the protocol or in the explanation of the domain.

This configuration can also differentiate between different multicast services to be specific and effective. That is, after the terminal receiving part of the multicast service is released back to the Inactive state, it is allowed to choose the cell to camp first. After the terminal receiving another part of the multicast service is released back to the Inactive state, it is not allowed to The cell is allowed to be selected for preferential camping, and the normal camping and/or cell reselection criteria need to be followed. The range of allowed multicast services can be explicitly carried in SIB signaling. For example, in the form of a multicast service identifier, TMGI, it is stated which services support priority for the cell to reside in, and then other services are not allowed; or for example: If multicast service characteristics are carried in SIB signaling, such as what kind of service QoS characteristics are met, the block error rate is lower than threshold 1 and/or the service delay is lower than threshold 2, etc., then these services support the priority of the cell. Other services that do not meet the characteristics are not allowed. The mode of business characteristics can also be indicated implicitly, that is, it does not appear in the SIB, but the business characteristics are specified in the explanatory text of the agreement or in the domain explanation.

The dedicated signaling method can be Radio Resource Control (RRC) dedicated signaling (RRC dedicated signaling), which performs point-to-point specialized control of the terminal. For example, the RRC release message carries configuration information for terminal camping indication and/or cell reselection priority.

Dedicated signaling can generally be sent by the serving cell in the current Connected state of the terminal. For this serving cell, it is very clear about the type and/or capabilities of the terminal. For example, whether the terminal belongs to RedCap, Low-Cost, IoT, etc. with relatively high capabilities. Terminals with low or simple implementation or extremely high power saving requirements, or the carrier aggregation capability reported by the terminal Connected status indicates that the terminal can continue to receive multicast services only if it resides in the multicast cell. For such terminals, dedicated signaling can be used. The order mode indicates that they preferentially reside in the multicast cell. For other terminals, normal camping and/or cell reselection rules can be followed, such as performing camping and cell reselection in accordance with the cell reselection priority in the SIB, to facilitate the load balancing effect.

For the terminal's serving cell, since it also knows the multicast service situation that the terminal is currently interested in, such as the QoS requirements of the service, it can judge in real time based on the multicast service requirements that the terminal is currently interested in whether to allow the terminal to return to Inactive. Prioritize the multicast cell or multicast frequency point to camp, thereby using dedicated signaling to notify different terminals.

In particular, for the terminal's serving cell, it also knows the residency and/or load conditions of the multicast cell and/or the multicast cell's neighboring cells (such as other inter-frequency cells with the same coverage), for example, from the random data of these cells. Access conflict probability and/or RRC connection initiation status are used to judge, etc. When the multicast cell load is heavy and the load of other cells is light, try to offload the terminal to other cells to camp, otherwise when the multicast cell load is light , when other cells are heavily loaded, more terminals can be accommodated in the multicast cell.

In short, since the serving cell has a relatively detailed grasp of the terminal's own situation and the current network situation, it can make comprehensive judgments and evaluations, and reasonably configure the terminal to achieve a reasonable compromise between cell load and terminal performance.

In particular, regarding the detailed configuration field of dedicated signaling, since the dedicated signaling such as the RRC Release message already has configuration information fields related to redirection and cell reselection, regarding the redirection and/or carried by multicast service reception The configuration information of cell reselection can reuse the configurations in these related technologies, or it can be configured in a new domain:

1. Reuse the redirection and/or cell reselection configuration fields in related technologies:

If the network side can know in advance the end time of the service that the terminal is interested in, it can also configure the duration in the defined configuration field. For example, fill in the appropriate duration in the valid time field (for example, equal to the duration of the multicast service), so that these configurations The domain can take effect within the time range when the service is sent, and will become invalid after the service ends, so as to achieve the effect of better matching the service duration to accurately control terminal parking and/or cell reselection;

Or, add a new Multicast indication field to the defined configuration field, for example, indicating that this is a redirection and/or cell reselection configuration field that is effective for multicast services. The following methods can exist:

The 1-bit configuration field can be valid for all multicast services. In this method, if any multicast service in the terminal has not ended or is receiving, the redirection and/or cell reselection configuration field will continue to be valid until all multicast services are completed. The configuration domain will become invalid only after all services have been received;

It can also be a valid method for a specific service list, including a list of valid multicast service identifiers associated with the redirection and/or cell reselection configuration fields, such as a TMGI list. For example, the terminal is interested in or is receiving three services, but when configuring the redirection and/or cell reselection configuration domain, it can only associate one or two of the services to be valid, and give a detailed service list. In this method, if the terminal has any multicast service in the specified service list that has not ended or is receiving, the redirection and/or cell reselection configuration fields will continue to be valid until all services in the specified service list are completed. The configuration domain will become invalid only after receiving is completed. For any service that is not in the specified service list, its end reception or not does not affect the activation and deactivation of the configuration domain.

All of the above methods can more accurately control UE redirection and/or cell reselection for specific multicast services.

2. Adopt new redirection and/or cell reselection configuration fields:

If new redirection and/or cell reselection configuration fields are adopted, when designing or adding these configuration fields, it can be specified by name or protocol description that these configuration fields are valid for multicast service reception, so these configuration fields The configuration domain can be naturally associated with the multicast service.

If these new configuration fields do not carry further validity ranges, they can be interpreted as valid for all multicast services that the terminal is receiving or is interested in. If the terminal has any multicast service that has not ended or is receiving, the redirection and/or cell reselection configuration fields will continue to be valid until all multicast services have finished receiving, and the configuration fields will become invalid;

If these new configuration fields further carry a valid range, such as a valid service identification list, it can be interpreted as valid only for the specified service. If the terminal has any multicast service in the specified service list that has not ended or is receiving, then the terminal The redirection and/or cell reselection configuration fields will continue to be valid until all services in the specified service list have finished receiving, and the configuration field will not become invalid. For any service that is not in the specified service list, its end reception or not does not affect the activation and deactivation of the configuration domain.

Regarding how to determine that a multicast service has ended, there can be some default or configuration methods, such as configuring or defaulting a duration T. If no data about the multicast service is received within this duration, the service is considered to have ended. This can also be configured. Or the default number of cycles is N. In N consecutive cycles, such as the business cycle or the discontinuous reception (Discontinuous Reception, DRX) cycle corresponding to the business, no information about the Any data in the multicast service is considered to be the end of the service. The network side can also explicitly notify the end of the service, for example, using the Group-Radio Network Temporary Identity (G-RNTI) of the service to schedule the Media Access Control Control Element (MAC CE) Or a special user plane control protocol data unit (UP control PDU), or an indication is carried in the header structure of the user plane data protocol data unit (UP data PDU) to display the service end mark.

As an optional implementation manner, the preset rule is used to instruct the terminal to preferentially camp on the first cell or the target frequency point.

The above-mentioned priority of camping on the first cell or the target frequency point may be that the priority of the first cell or the target frequency point is set to the highest priority, or it may be that during cell selection or reselection, the first cell Or the target frequency point is the first cell or frequency point that the terminal preferentially selects.

In some implementations, the above-mentioned preset rules include but are not limited to at least one of the following:

In the case where the terminal can continue to receive the multicast services it is interested in only if it is camped in a multicast service cell, the terminal is allowed to set at least one of the multicast service cell and the frequency point where the multicast service is located as the cell. The highest priority for reelection;

In the case where the terminal can continue to receive the multicast services it is interested in without camping in a multicast service cell, the terminal is prohibited from setting at least one of the multicast service cell and the frequency point where the multicast service is located. The highest priority for cell reselection;

Allowing the terminal to set at least one of a cell and a frequency point in which it is unable to receive the multicast service it is interested in when camping as the lowest priority for cell reselection;

When the terminal needs to receive multicast services in an inactive state, the terminal is allowed to set at least one of the multicast service cell and the frequency point where the multicast service is located as the highest priority for cell reselection;

When the multicast service that the terminal is interested in ends, the terminal is prohibited from setting at least one of the multicast service cell and the frequency point where the multicast service is located as the highest priority for cell reselection.

The above preset rules can enable the terminal to preferentially select the above-mentioned first cell or the target frequency point to camp on.

In some embodiments, the above-mentioned preset rules are effective for all multicast services; or, the above-mentioned preset rules are effective for at least one multicast service, and the at least one multicast service includes the first multicast service; and / or

The preset rule is effective for all terminals; or, the preset rule is effective for at least one type of terminal, and the at least one type of terminal includes the terminal.

The above-mentioned effect on at least one multicast service may be to distinguish the effective multicast services by service identifiers and service characteristics, and the above-mentioned effect on at least one terminal may be to distinguish the effective terminals according to the type of the terminal.

An example is as follows:

This embodiment mainly describes cell camping and/or cell reselection rules, specifically as follows:

Adopting default rules (i.e., the above-mentioned preset rules) allows the terminal to preferentially reside in the multicast cell. The advantage of the default rule method is that it saves the cost of display instructions on the network side.

Default rules can refer to stipulating some rules in the protocol so that qualified terminals can stay in the multicast cell first and receive multicast services. The default rules can include at least one of the following:

When the terminal can continue to receive the multicast service of interest only by camping on the multicast cell, the terminal is allowed to camp on the multicast cell first and/or the frequency point where the multicast service is located is set as the highest priority frequency point for cell reselection;

When the terminal can continue to receive the multicast service of interest without camping on the multicast cell, the terminal is not allowed to preferentially camp on the multicast cell and/or the frequency point where the multicast service is located is set as the highest priority for cell reselection. Frequency;

When the terminal cannot continue to receive the multicast service of interest while camping on a certain frequency point, the terminal is allowed to set the multicast cell point and/or the frequency point as the lowest priority frequency point for cell reselection;

When the terminal is interested in receiving the multicast service Inactive, the terminal is allowed to camp on the multicast cell first and/or the frequency point where the multicast service is located is set as the highest priority frequency point for cell reselection;

When the multicast service that the terminal is interested in ends, the terminal is no longer allowed to preferentially camp on the multicast cell and/or the frequency point where the multicast service is located is set as the highest priority frequency point for cell reselection.

Each of the above rules can be applied to all multicast services, or to the default multicast service type. For example, it is only valid for services that meet certain service characteristics. The service characteristics can be service types (such as real-time services), or service QoS characteristics. For example, the block error rate is lower than threshold 1 and/or the delay is lower than threshold 2, etc.;

Each of the above rules can be applied to all terminals, or to the default terminal type. For example, it is only effective for terminals with lower capabilities such as RedCap, Low-Cost, and IoT, or when the terminal has complexity control or power saving requirements. Or it takes effect when the UE cannot bear the mobility management of the cell/frequency point in which it is camping and the mobility management of the multicast cell/frequency point at the same time, or when the UE cannot bear the mobility assessment and multicast cell/frequency point in which it is camping at the same time. takes effect during mobility evaluation.

As an optional implementation manner, when the first cell is a cell that does not send the first multicast service, the terminal uses at least one of network side signaling, preset rules and terminal capabilities to Item confirmed:

Prohibiting the terminal from setting at least one of the multicast service cell and the frequency point where the multicast service is located as the highest priority for cell reselection;

The terminal is not supported to set at least one of the multicast service cell and the frequency point where the multicast service is located as the highest priority for cell reselection.

In this embodiment, at least one of the above items can be used to cause the terminal to camp in a non-multicast service cell, so as to reduce the load of the multicast service cell.

An example is as follows:

In this embodiment, the terminal resides in a non-Multicast cell to receive multicast services. The details can be as follows:

For an Inactive terminal that receives multicast services, although it can stay in the cell where the current multicast service is located when it is released from the Connected state to Inactive, it is the most convenient situation for receiving services from the terminal's perspective, but if A large number of terminals camped in the same cell or frequency point will also increase the system load and have a poor impact on the conflict probability of random access resources and the access of other unicast terminals. Therefore, from a network perspective, it may also be hoped that terminal parking can be dispersed, such as adopting different parking methods for terminals with different capabilities, thereby ensuring multicast service reception and better load balancing from a system performance perspective. , which is conducive to the normal access of other terminals.

In one method, different camping modes are distinguished based on the terminal capabilities. For a UE that can only receive multicast services when it resides in the cell where the multicast service is located, for example, it only has a single frequency point reception capability, then such a terminal is allowed to camp. Stay in the multicast cell or Multicast/Broadcast Service (MBS) cell, and/or set the frequency point where the multicast cell is located to the frequency point with the highest cell reselection priority to ensure that the terminal can always stay in the cell. Receive business. For terminals with higher receiving capabilities, if the terminal can reside on other frequencies and receive multicast services on the multicast cell at the same time, then such a terminal is not allowed to reside directly on the multicast cell, nor can it set a multicast frequency. The point is the frequency point with the highest cell reselection priority. These terminals can find a suitable cell to camp in according to the order of cell reselection priority from high to low, and maintain multicast cell service reception at the same time.

In the above embodiment, various network side display instructions or default methods for controlling cell camping and/or cell reselection are given. Although most of the examples are explained using the example of retaining a multicast cell/frequency point. However, a similar mechanism or the opposite of its condition is also applicable to control to avoid multicast cell/frequency camping. For example, the network display indicates that multicast cells/frequency points are allowed to camp preferentially or are set to reselect the highest priority frequency. If the network does not indicate this, it means that the network does not allow or support multicast cells/frequency points to camp or set priority. The highest priority frequency point is reselected. Or, there are some default rules. If these rules are met, the terminal is allowed to perform multicast cell/frequency priority camping or is set to reselect the highest priority frequency. If the rules are not met, it means that the terminal is not allowed or supported to perform multicast cell. /Frequency priority park or set to reselect the highest priority frequency.

When the terminal is not allowed or does not support the terminal to perform priority camping on multicast cells/frequency points according to network side instructions or default rules or is set to reselect the highest priority frequency point, the terminal's behavior may include: When there is a dedicated signaling indication When traditional redirection information and/or cell reselection priority information is provided, the terminal follows the redirection or cell reselection priority behavior. When there is no such information indicated by dedicated signaling, the terminal follows the relevant information in the common signaling SIB. Related resident cell selection and reselection process for related cell reselection.

When the terminal resides in a non-multicast cell/frequency point according to the agreement, the terminal tries to receive multicast services at the same time. If it cannot be done at the same time, you can temporarily give up receiving multicast services, or until the configured or default timer times out or expires, the terminal returns to the Connected state and requests the network to continue receiving multicast services, or the terminal re-evaluates cell reselection to try to meet the requirements. Requirements for receiving multicast services at the same time.

As an optional implementation manner, after the terminal camps on the first cell in an inactive state and receives the first multicast service, the method further includes:

If it is determined that the first multicast service cannot be received, RRC connection recovery is performed.

The above-mentioned failure to receive the first multicast service may be that the terminal cannot continue to receive the first multicast service. In addition, the terminal's inability to receive the first multicast service may be caused by terminal cell selection or reselection, or may be caused by terminal monitoring or measurement.

In this embodiment, through the above-mentioned RRC connection recovery, the connected state can be entered to continue receiving the first multicast service, so as to improve the multicast service reception performance.

In some embodiments, the first cell is a multicast service cell that sends the first multicast service, and the terminal camps on the first cell in an inactive state and receives the first multicast service. , the method also includes:

Perform cell selection or cell reselection and camp on the second cell;

When the second cell where the resident cell is located is capable of receiving the first multicast service, receive the first multicast service;

Wherein, the inability to receive the first multicast service includes:

Before performing cell selection or cell reselection, it is determined that the first multicast service cannot be received; or

When camping on the second cell, it is determined that the first multicast service cannot be received.

In this embodiment, performing RRC connection restoration may be performing RRC connection restoration in the second cell.

In this embodiment, it is possible to receive the first multicast service when the second cell is camped in and can receive the first multicast service. However, before performing cell selection or cell reselection, it is determined that the first multicast service cannot be received. When receiving the first multicast service, RRC connection recovery is performed, or when it is determined that the first multicast service cannot be received while camping on the second cell, RRC connection recovery is performed.

In some implementations, the terminal is unable to receive the first multicast service under at least one of the following conditions:

The terminal camps on the second cell;

The second cell does not belong to the first area, and the first area is the effective area of the first multicast service;

The measurement result for the multicast channel or multicast signal matches a first preset value, and the first preset value indicates that the first multicast service cannot be received;

The evaluation result of the reception effect of the first multicast service matches a second preset value, and the second preset value indicates that the first multicast service cannot be received.

The above terminal camping in the second cell may mean that if the terminal camps in a cell other than the first cell, the terminal cannot receive the first multicast service.

The second cell does not belong to the first area. The terminal camps on the second cell and the second cell does not belong to the first area. Then the terminal cannot receive the first multicast service.

The above-mentioned first cell may be represented by a tracking area (Tracking Area, TA) list or by a cell list.

The above-mentioned first preset value and second preset value may be values defined by the protocol or values configured on the network side.

The above measurement results can be measurement results such as reference signal received power (RSRP), signal-to-noise ratio (SNR), reference signal receiving quality (RSRQ), etc.

The above measurement result matches the first preset value. The first preset value indicating that the first multicast service cannot be received may be, If the measurement result is lower than the first preset value, it means that the first multicast service cannot be received.

The reception effect evaluation result of the above-mentioned first multicast service may be the reception quality information of the first multicast service, such as decoding failure rate, decoding success rate, block error rate, number of consecutive decoding failure data blocks, and reception failure probability within a certain period of time. wait.

The above reception parameter matches a second preset value. The second preset value indicates that the first multicast service cannot be received. The decoding failure rate is higher than the second preset value, which indicates that the first multicast service cannot be received. Multicast service, or the block error probability is higher than the second preset value, which means that the first multicast service cannot be received. It should be noted that, for different reception parameters, the value of the above-mentioned second preset value may be different.

It should be noted that when the measurement result does not match the first preset value, the terminal can receive the first multicast service; when the reception effect evaluation result does not match the second preset value, the terminal can receive the third multicast service. A multicast service.

In this implementation, it is possible to determine whether the terminal is unable to receive the first multicast service through multiple dimensions.

An example is as follows:

This embodiment mainly describes the mobility of terminals residing in Multicast cells. In the above embodiments and implementation modes, the network side or default mechanism is given to control the residing and/or cell reselection of Inactive terminals that receive multicast services. Way. According to these methods, a terminal may reside in a multicast cell to receive multicast services. This embodiment gives some considerations regarding mobility and continuous multicast service reception in this case. Specifically, it can be as follows:

When the terminal resides in a multicast cell to receive multicast services, as the terminal moves, in addition to normal idle/inactive mobility evaluation, such as the cell reselection process, the terminal also needs to perform multicast The service reception effect, as well as a certain guarantee mechanism for continuous reception, can be at least one of the following:

It is considered that the terminal multicast reception also follows or reuses the guarantee of the cell selection/reselection mechanism. That is to say, when the terminal resides in the multicast cell, it is considered that the terminal can continue to receive multicast services. When the terminal no longer satisfies the requirement to reside in the multicast cell When the conditions are met, that is, the terminal has cell selection/reselection, and when it re-camps to another cell, it is considered that the terminal can no longer continue to receive multicast services, and the terminal can trigger a new mechanism to continue to receive multicast services;

If the multicast service reception or service-related configuration explicitly or implicitly indicates that it is only valid in the current multicast cell, once the terminal is reselected to another cell, it means that the multicast service configuration information will no longer be valid and the terminal cannot use it. If the configuration information in the related technology continues to receive multicast services in the new cell, the terminal will immediately restore the RRC connection, enter the connected state, and request new configuration information from the network side or continue to receive multicast services in a new way;

If the multicast service reception or service-related configuration and display mode indicate a certain valid area, such as TA list or cell list, then it will be judged whether the new resident cell can continue to be used based on whether the new resident cell is within the valid area. The original configuration is to receive multicast services. If it is within the area, it will continue to receive. If it is not within the area, the terminal can immediately restore the RRC connection, enter the connected state, and request new configuration information or new methods from the network side. Continue multicast service reception.

In addition, in addition to the cell selection/reselection mechanism, the terminal can perform additional monitoring or measurement mechanisms for multicast reception, that is, the evaluation of the terminal cell selection/reselection and whether the terminal can continue to receive multicast in the multicast cell. Businesses are evaluated independently, for example, based on different measurement or evaluation conditions/thresholds. wait. Specifically, it can be as follows:

The evaluation and operation of UE cell selection/reselection can be performed using mechanisms in related technologies;

For multicast cell service reception, new conditions can be configured or defaulted, such as corresponding threshold judgments based on RSRP measurement of multicast channels or multicast signals. The threshold can be a threshold consistent with parking/reselection or a separate threshold. Determine whether multicast reception can continue based on whether the threshold is met, or make an independent threshold judgment for unicast RSRP. That is, although the same cell common reference signal is measured as the trigger for cell reselection, different thresholds can be configured. A threshold It is used to judge cell reselection, and another independent threshold is used to judge whether multicast reception should continue;

Multicast cell reception of multicast services can also be judged based on conditions other than the RSRP threshold. For example, the decoding failure rate of the multicast service is higher than the threshold, or the success rate is lower than the threshold, or the block error probability is higher than the threshold, or continuous decoding fails. N data blocks, the probability of receiving failure for a certain duration/window is higher than the threshold or the success rate is lower than the threshold, etc. In short, when the conditions for multicast service reception cannot be met, it can be judged that multicast reception cannot continue;

When multicast reception cannot continue, the terminal can immediately restore the RRC connection, enter the connected state, and request new configuration information from the network side or continue to receive multicast services in a new way;

The terminal multicast reception cannot continue, which can occur before reselection from the multicast cell to other cells or after;

If multicast reception or multicast configuration is valid in a certain area, the terminal can continuously perform multicast reception in the area. Until the terminal moves out of the area, the condition that the multicast reception cannot continue will be triggered and the terminal trigger state will be met. Change, enter the connection state and request new configuration or new reception method from the network side.

In some embodiments, the first cell is a cell that does not send the first multicast service, and after the terminal camps on the first cell in an inactive state and receives the first multicast service, The above methods also include:

Perform cell selection or cell reselection in the first cell and camp on the second cell.

This implementation may be to determine whether the terminal is unable to receive the first multicast service before or after camping in the second cell, and if it is determined that the first multicast service cannot be received, perform RRC connection recovery. If the second cell is able to receive the first multicast service, it will receive the first multicast service while camping in the second cell, so as to improve the effect of the terminal receiving the multicast service.

In some implementations, the first cell is a cell that does not send the first multicast service, and the method further includes:

Perform a judgment operation on the multicast cell sending the first multicast service, the judgment operation being used to judge whether the first multicast service cannot be received;

The failure to receive the first multicast service includes: the result of the judgment operation indicates that the first multicast service cannot be received.

Wherein, the above judgment operation may be a judgment after camping on the first cell. When combined with the embodiment of camping on a second cell, the judgment operation may be a judgment after camping on the second cell, or it may be The judgment is made before parking in the second cell, and there is no limit to this.

This implementation may be: when the result of the judgment operation indicates that the first multicast service cannot be received, perform RRC When the connection is restored, the judgment operation indicates that the first multicast service can be received, the second cell is camped, and the first multicast service is received.

In some implementations, the above determination operation determines whether the first multicast service cannot be received based on at least one of the following:

Perform at least one evaluation of parking and cell reselection for the multicast service cell that sends the first multicast service, and obtain the evaluation result;

Measurement results of multicast channels or multicast signals;

The reception effect evaluation result of the first multicast service;

Wherein, the terminal cannot receive the first multicast service under at least one of the following conditions:

The evaluation result indicates that the multicast service cell sending the first multicast service does not meet the residency condition;

The measurement result of the multicast channel or multicast signal matches a third preset value, and the third preset value indicates that the first multicast service cannot be received;

The reception effect evaluation result matches a fourth preset value, and the fourth preset value indicates that the first multicast service cannot be received.

In this embodiment, if the multicast service cell sending the first multicast service satisfies the camping condition, the terminal can receive the first multicast service, thereby camping in the second cell and receiving the multicast service.

For the third preset value and the fourth preset value, reference may be made to the first preset value and the second preset value described in the above embodiments, and will not be described again here.

An example is as follows:

This embodiment mainly describes the mobility of terminals residing in non-Multicast cells. In the above embodiments and implementation modes, the network or default mechanism is given for the camping and/or cell reselection of Inactive terminals receiving multicast services. control method. According to these methods, a terminal may also reside in a non-multicast cell to receive multicast services. This embodiment gives some considerations regarding mobility and continuous multicast service reception in this case. Specifically, it can be as follows:

When the terminal resides in a non-multicast cell to receive multicast services, as the terminal moves, in addition to the normal Idle/Inactive mobility evaluation of the resident cell, such as the cell reselection process, the terminal also needs to The cell where the multicast service is located, the multicast reception effect, and certain measurement and guarantee mechanisms for multicast continuous reception can include at least one of the following:

First of all, the terminal's operation on the resident cell can fully follow the standardized behavior of cell selection and reselection of Idle/Inactive terminals defined by the protocol, and the selection and replacement of the resident cell can be performed normally;

Secondly, in addition to the resident cell, since the terminal receives multicast services in another multicast cell, the terminal can also additionally perform mobility or reception effect evaluation/measurement on the multicast cell, using at least one of the following methods:

An additional set of cell camping and/or reselection judgment mechanisms are implemented for the multicast cell, that is, the terminal performs dual camping/reselection. Judgment, the real resident cell performs Idle mobility behavior, and the same cell camp/reselection judgment is also performed in the multicast cell. The multiplexing protocol has defined behavior. If the multicast cell residency conditions are met, it is judged that the terminal can continue To receive multicast services, otherwise it is judged that it cannot continue to receive, the terminal can immediately restore the RRC connection, enter the connected state, and request new configuration information from the network side or continue to receive multicast services in a new way;

Multicast cell service reception can also configure or default new conditions, such as corresponding threshold judgments based on RSRP measurement of multicast channels or multicast signals. The threshold can be a threshold consistent with parking/reselection or a separate threshold. , judge whether multicast reception can continue based on whether the threshold is met, or make an independent threshold judgment for unicast RSRP, that is, although the same cell common reference signal is measured as the trigger for cell reselection, different thresholds can be configured. The threshold is used to judge cell reselection, and another independent threshold is used to judge whether multicast reception should continue;

Multicast cell reception of multicast services can also be judged by conditions other than the RSRP threshold. For example: the decoding failure rate of the multicast service is higher than the threshold, or the success rate is lower than the threshold, or the block error probability is higher than the threshold, or continuous decoding If N data blocks fail, the reception failure probability is higher than the threshold or the success rate is lower than the threshold for a certain period of time/window, etc. In short, if the conditions for multicast service reception cannot be met, it can be judged that multicast reception cannot continue.

Among them, the terminal multicast reception cannot continue, which can occur before the resident cell is changed or after the change. The two can be determined independently.

In this embodiment of the present application, the terminal determines the first cell or the target frequency point based on at least one of network side signaling, preset rules and terminal capabilities; the terminal camps on the first cell in an inactive state , and receives the first multicast service; wherein, when the target frequency point is determined, the first cell in which the terminal camps is determined based on the target frequency point. This can support the terminal to receive multicast services in the inactive state, thus reducing the network load.

In addition, in the embodiment of the present application, the terminal's camping on multicast cells/frequency points and/or cell reselection frequency point priority can be controlled through network-side signaling or preset rules, thereby avoiding the problem caused by the concentrated camping of a large number of inactive terminals. The system load imbalance and the impact on other terminal access ensure the timely and normal reception of multicast services by terminals, which improves the load balancing control of the network on the basis of ensuring the reception effect, ensuring multicast reception and other Normal maintenance of unicast services.

Please refer to Figure 3. Figure 3 is a flow chart of a multicast service receiving method provided by an embodiment of the present application. As shown in Figure 3, it includes the following steps:

301. The network side device sends network side signaling to the terminal, and the network side signaling is used by the terminal to determine the first cell or target frequency point;

Optionally, the network side signaling includes first indication information, and the first indication information is used to indicate at least one of the following:

Prioritize camping in the first cell;

The target frequency point has the highest priority.

Optionally, the network side signaling includes at least one of the following:

Public signaling and dedicated signaling.

Optionally, the first indication information included in the public signaling is valid for all terminals that receive the public signaling; or, the first indication information included in the public signaling is valid for all terminals that receive the public signaling. The common signaling is valid for the first type of terminal, and the terminal is the first type of terminal;

and / or,

The first indication information included in the public signaling is valid for the first multicast service.

Optionally, the dedicated signaling is dedicated signaling issued by the serving cell in the connected state of the terminal.

Optionally, the first indication information is the indication information carried in the first information field of the dedicated signaling, or the first indication information is the indication information carried in the second information field of the dedicated signaling;

Wherein, the first information field includes at least one of the following:

Optionally, when the first indication information is the indication information carried in the first information field of the dedicated signaling:

Optionally, the third indication information is used to indicate that the first information domain is effective for all multicast services; or

Optionally, when the first indication information is the indication information carried in the second information field of the dedicated signaling:

The second information domain is effective for all multicast services; or

Optionally, the first cell is a multicast service cell that sends the first multicast service; or

The first cell is a cell that does not send the first multicast service, and when the terminal is camped in the first cell, the terminal can receive the first multicast service.

Optionally, when the first cell is a cell that does not send the first multicast service, the network side signal The order is used to determine:

It should be noted that this embodiment is an implementation of the network-side device corresponding to the embodiment shown in Figure 2. For its specific implementation, please refer to the relevant description of the embodiment shown in Figure 2 to avoid repeated description. No further details will be given in this embodiment.

Please refer to Figure 4. Figure 4 is a structural diagram of a multicast service receiving device provided by an embodiment of the present application. As shown in Figure 4, the multicast service receiving device 400 includes:

Determining module 401, configured to determine the first cell or target frequency point based on at least one of network side signaling, preset rules and terminal capabilities;

The receiving module 402 is used to camp on the first cell in an inactive state and receive the first multicast service;

The above-mentioned multicast service receiving device corresponds to the terminal, or it can be understood that the terminal includes the above-mentioned multicast service receiving device.

Prioritize camping in the first cell;

Priority is given to camping on the target frequency point.

Optionally, the network side signaling includes at least one of the following:

Public signaling and dedicated signaling.

and / or,

Wherein, the first information field includes at least one of the following:

The second information domain is effective for all multicast services; or

Optionally, the preset rule is used to instruct the terminal to preferentially camp on the first cell or the target frequency point.

Optionally, the preset rules include at least one of the following:

Optionally, the preset rules are effective for all multicast services; or, the preset rules are effective for at least one multicast service, and the at least one multicast service includes the first multicast service; and /or

Optionally, when the first cell is a cell that does not send the first multicast service, the terminal determines based on at least one of network side signaling, preset rules and terminal capabilities:

The terminal is prohibited from setting at least one of the multicast service cell and the frequency point where the multicast service is located as a cell reselection. highest priority;

Optionally, the above devices also include:

The first execution module is configured to perform radio resource control (RRC) connection recovery when it is determined that the first multicast service cannot be received.

Optionally, the first cell is a multicast service cell that sends the first multicast service, and the device further includes:

The second execution module is used to perform cell selection or cell reselection and reside in the second cell;

A receiving module, configured to receive the first multicast service when the second cell where the resident cell is located can receive the first multicast service;

Wherein, the inability to receive the first multicast service includes:

Optionally, the terminal is unable to receive the first multicast service under at least one of the following conditions:

The terminal camps on the second cell;

Optionally, the first cell is a cell that does not send the first multicast service. The above device further includes:

A parking module is configured to perform cell selection or cell reselection in the first cell and camp in the second cell.

A judgment module, configured to perform a judgment operation on the multicast cell sending the first multicast service, where the judgment operation is used to judge whether the first multicast service cannot be received;

Optionally, the determination operation determines whether the first multicast service cannot be received based on at least one of the following:

Measurement results of multicast channels or multicast signals;

The reception effect evaluation result of the first multicast service;

Wherein, the terminal cannot receive the first multicast service under at least one of the following circumstances:

The measurement result of the multicast channel or multicast signal matches a third preset value, and the third preset value indicates that it is impossible to Receive the first multicast service;

The above multicast service receiving device can reduce network load.

The multicast service receiving device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip. The electronic device may be a terminal or other devices other than the terminal. For example, the terminal may include but is not limited to the types of terminals listed in the embodiments of this application, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiments of this application.

The multicast service receiving device provided by the embodiment of the present application can implement each process implemented by the method embodiment shown in Figure 2 and achieve the same technical effect. To avoid duplication, the details will not be described here.

Please refer to Figure 5. Figure 5 is a structural diagram of a multicast service receiving device provided by an embodiment of the present application. As shown in Figure 5, the multicast service receiving device 500 includes:

The sending module 501 is configured to send network side signaling to the terminal, where the network side signaling is used by the terminal to determine the first cell or target frequency point;

Prioritize camping in the first cell;

The target frequency point has the highest priority.

Optionally, the network side signaling includes at least one of the following:

Public signaling and dedicated signaling.

and / or,

Wherein, the first information field includes at least one of the following:

The second information domain is effective for all multicast services; or

Optionally, when the first cell is a cell that does not send the first multicast service, the network side signaling is used to determine:

The above multicast service receiving device can reduce network load.

The system information sending device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip. The electronic device may be a network side device.

The system information sending device provided by the embodiment of the present application can implement each process implemented by the method embodiment shown in Figure 3 and achieve the same technical effect. To avoid duplication, the details will not be described here.

Optionally, as shown in Figure 6, this embodiment of the present application also provides a communication device 600, which includes a processor 601 and a memory 602. The memory 602 stores programs or instructions that can be run on the processor 601, for example. , when the communication device 600 is a terminal, when the program or instruction is executed by the processor 601, each step of the multicast service receiving method embodiment on the terminal side is implemented, and the same technical effect can be achieved. When the communication device 600 is a network-side device, when the program or instruction is executed by the processor 601, each step of the multicast service receiving method embodiment on the network-side device side is implemented, and the same technical effect can be achieved. To avoid duplication, I won’t go into details here.

Embodiments of the present application also provide a terminal, including a processor and a communication interface. The processor or communication interface is configured to determine the first cell or the target frequency point based on at least one of network side signaling, preset rules, and terminal capabilities. ; The communication interface is also used to camp on the first cell in an inactive state and receive the first multicast service; wherein, after determining the target In the case of a frequency point, the first cell where the terminal camps is determined based on the target frequency point. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment. Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect. Specifically, FIG. 7 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.

The terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, a processor 710, etc. At least some parts.

Those skilled in the art can understand that the terminal 700 may also include a power supply (such as a battery) that supplies power to various components. The power supply may be logically connected to the processor 710 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions. The terminal structure shown in FIG. 7 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or some components may be combined or arranged differently, which will not be described again here.

It should be understood that in the embodiment of the present application, the input unit 704 may include a graphics processing unit (Graphics Processing Unit, GPU) 7041 and a microphone 7042. The graphics processing unit 7041 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Process the image data of still pictures or videos obtained by cameras (such as cameras). The display unit 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes a touch panel 7071 and at least one of other input devices 7072 . Touch panel 7071, also called touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. Other input devices 7072 may include but are not limited to physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.

In this embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 701 can transmit it to the processor 710 for processing; in addition, the radio frequency unit 701 can send uplink data to the network side device. Generally, the radio frequency unit 701 includes, but is not limited to, an antenna, amplifier, transceiver, coupler, low noise amplifier, duplexer, etc.

Memory 709 may be used to store software programs or instructions as well as various data. The memory 709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc. Additionally, memory 709 may include volatile memory or non-volatile memory, or memory 709 may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM). The memory 709 in the embodiment of this application includes but does not Limited to these and any other suitable types of memory.

The processor 710 may include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above-mentioned modem processor may not be integrated into the processor 710.

Wherein, the processor 710 is configured to determine the first cell or the target frequency point based on at least one of network side signaling, preset rules and terminal capabilities;

The radio frequency unit 701 is used for the terminal to camp on the first cell in an inactive state and receive the first multicast service;

Prioritize camping in the first cell;

Priority is given to camping on the target frequency point.

Optionally, the network side signaling includes at least one of the following:

Public signaling and dedicated signaling.

and / or,

Wherein, the first information field includes at least one of the following:

The third indication information is used to indicate at least one multicast service, and the indication information carried in the first information field is The at least one multicast service takes effect, and the at least one multicast service includes the first multicast service.

The second information domain is effective for all multicast services; or

Optionally, the preset rules include at least one of the following:

Optionally, after the terminal camps on the first cell in the inactive state and receives the first multicast service, the processor 710 is further configured to:

If it is determined that the first multicast service cannot be received, radio resource control (RRC) connection recovery is performed.

Optionally, the first cell is a multicast service cell that sends the first multicast service. The terminal camps on the first cell in an inactive state and receives the first multicast service, and then processes The 710 is also used for:

Perform cell selection or cell reselection and camp on the second cell;

The radio frequency unit 701 is also configured to: receive the first multicast service when the second cell in which the cell is camped can receive the first multicast service;

Wherein, the inability to receive the first multicast service includes:

Optionally, the terminal is unable to receive the first multicast service under at least one of the following circumstances:

The terminal camps on the second cell;

Optionally, the first cell is a cell that does not send the first multicast service. After the terminal camps in the first cell in an inactive state and receives the first multicast service, the processor 710 Also used for:

Optionally, the first cell is a cell that does not send the first multicast service, and the processor 710 is further configured to:

Measurement results of multicast channels or multicast signals;

The reception effect evaluation result of the first multicast service;

The above terminals can reduce network load.

An embodiment of the present application also provides a network side device, including a processor and a communication interface, wherein the communication interface is used to send network side signaling to a terminal, and the network side signaling is used by the terminal to determine the first cell. Or a target frequency point; wherein, the first cell is a cell where the terminal camps in the inactive state and receives the first multicast service; or the target frequency point is used by the terminal to determine whether the terminal is in the inactive state. The cell where the first multicast service resides and receives. This network-side device embodiment corresponds to the above-mentioned network-side device-side method embodiment. Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.

Specifically, the embodiment of the present application also provides a network side device. As shown in FIG. 8 , the network side device 800 includes: an antenna 801 , a radio frequency device 802 , a baseband device 803 , a processor 804 and a memory 805 . Antenna 801 is connected to radio frequency device 802. In the uplink direction, the radio frequency device 802 receives information through the antenna 801 and sends the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes the information to be sent and sends it to the radio frequency device 802. The radio frequency device 802 processes the received information and then sends it out through the antenna 801.

The method performed by the network side device in the above embodiment can be implemented in the baseband device 803, which includes a baseband processor.

The baseband device 803 may include, for example, at least one baseband board on which multiple chips are disposed, as shown in FIG. Program to perform the network device operations shown in the above method embodiments.

The network side device may also include a network interface 806, which is, for example, a common public radio interface (CPRI).

Specifically, the network side device 800 in this embodiment of the present application also includes: instructions or programs stored in the memory 805 and executable on the processor 804. The processor 804 calls the instructions or programs in the memory 805 to execute each of the steps shown in Figure 5. The method of module execution and achieving the same technical effect will not be described in detail here to avoid duplication.

Wherein, the radio frequency device 802 is used to send network side signaling to the terminal, and the network side signaling is used by the terminal to determine the first cell or target frequency point;

Prioritize camping in the first cell;

The target frequency point has the highest priority.

Optionally, the network side signaling includes at least one of the following:

Public signaling and dedicated signaling.

and / or,

Wherein, the first information field includes at least one of the following:

The second information domain is effective for all multicast services; or

The above network side devices can reduce network load.

Embodiments of the present application also provide a readable storage medium. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the multicast service receiving method provided by the embodiments of the present application are implemented. .

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage media, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.

An embodiment of the present application further provides a chip. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the above multicast service receiving method. Each process in the example can achieve the same technical effect. To avoid repetition, we will not repeat it here.

It should be understood that the chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.

Embodiments of the present application further provide a computer program/program product. The computer program/program product is stored in a storage medium. The computer program/program product is executed by at least one processor to implement the above multicast service receiving method. Each process of the embodiment can achieve the same technical effect, so to avoid repetition, it will not be described again here.

Embodiments of the present application also provide a frequency domain resource determination system, including: a terminal and a network side device. The terminal can be used to perform the steps of the multicast service receiving method on the terminal side provided by the embodiment of the present application. The network side The device may be configured to perform the steps of the multicast service receiving method on the network side device side provided in the embodiment of the present application.

It should be noted that, in this document, the terms "comprising", "comprises" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or apparatus. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article or apparatus that includes that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions may be performed, for example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to related technologies. The computer software product is stored in a storage medium (such as ROM/RAM, disk, CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Inspired by this application, many forms can be made without departing from the purpose of this application and the scope protected by the claims, all of which fall within the protection of this application.

Claims

A multicast service receiving method includes:

The terminal determines the first cell or the target frequency point based on at least one of network side signaling, preset rules and terminal capabilities;

The terminal camps on the first cell in an inactive state and receives the first multicast service;

Wherein, when the target frequency point is determined, the first cell where the terminal camps is determined based on the target frequency point.
The method of claim 1, wherein the network side signaling includes first indication information, and the first indication information is used to indicate at least one of the following:

Prioritize camping in the first cell;

Priority is given to camping on the target frequency point.
The method of claim 2, wherein the network side signaling includes at least one of the following:

Public signaling and dedicated signaling.
The method of claim 3, wherein the first indication information included in the public signaling is valid for all terminals that receive the public signaling; or, the first indication information included in the public signaling is The indication information is valid for a terminal of the first type that receives the public signaling, and the terminal is a terminal of the first type;

and / or,

The first indication information included in the public signaling is valid for the first multicast service.
The method according to claim 3, wherein the dedicated signaling is dedicated signaling issued by the serving cell in the connected state of the terminal.
The method of claim 3, wherein the first indication information is indication information carried in the first information field of the dedicated signaling, or the first indication information is the second information field of the dedicated signaling. Instruction information carried in the information field;

Wherein, the first information field includes at least one of the following:

The redirection domain defined in the protocol for the dedicated signaling, and the cell reselection configuration domain defined in the protocol for the dedicated signaling;

Wherein, the second information field is at least one information field newly defined in the dedicated signaling.
The method of claim 6, wherein when the first indication information is indication information carried in the first information field of the dedicated signaling:

The dedicated signaling also includes second indication information, the second indication information is used to indicate the validity time of the first indication information; and/or

The dedicated signaling further includes third indication information, and the third indication information is used to instruct the first information domain to take effect on the first multicast service.
The method of claim 7, wherein the third indication information is used to indicate that the first information domain is All multicast services take effect; or

The third indication information is used to indicate at least one multicast service. The indication information carried in the first information field is effective for the at least one multicast service. The at least one multicast service includes the first Multicast services.
The method of claim 6, wherein when the first indication information is indication information carried in the second information field of the dedicated signaling:

The second information domain is effective for all multicast services; or

The dedicated signaling also includes fourth indication information. The fourth indication information is used to indicate that the second information domain is effective for at least one multicast service. The at least one multicast service includes the first multicast service. broadcast business.
The method of claim 1, wherein the preset rule is used to instruct the terminal to preferentially camp on the first cell or the target frequency point.
The method of claim 10, wherein the preset rules include at least one of the following:

In the case where the terminal can continue to receive the multicast services it is interested in only if it is camped in a multicast service cell, the terminal is allowed to set at least one of the multicast service cell and the frequency point where the multicast service is located as the cell. The highest priority for reelection;

In the case where the terminal can continue to receive the multicast services it is interested in without camping in a multicast service cell, the terminal is prohibited from setting at least one of the multicast service cell and the frequency point where the multicast service is located. The highest priority for cell reselection;

Allowing the terminal to set at least one of a cell and a frequency point in which it is unable to receive the multicast service it is interested in when camping as the lowest priority for cell reselection;

When the terminal needs to receive multicast services in an inactive state, the terminal is allowed to set at least one of the multicast service cell and the frequency point where the multicast service is located as the highest priority for cell reselection;

When the multicast service that the terminal is interested in ends, the terminal is prohibited from setting at least one of the multicast service cell and the frequency point where the multicast service is located as the highest priority for cell reselection.
The method of claim 10, wherein the preset rule is effective for all multicast services; or, the preset rule is effective for at least one multicast service, and the at least one multicast service includes the First multicast service; and/or

The preset rule is effective for all terminals; or, the preset rule is effective for at least one type of terminal, and the at least one type of terminal includes the terminal.
The method according to any one of claims 1 to 12, wherein the first cell is a multicast service cell that sends the first multicast service; or

The first cell is a cell that does not send the first multicast service, and when the terminal is camped in the first cell, the terminal can receive the first multicast service.
The method of claim 13, wherein, when the first cell is a cell that does not send the first multicast service, the terminal determines based on network side signaling, preset rules and terminal capabilities. At least one item is confirmed:

The terminal is prohibited from setting at least one of the multicast service cell and the frequency point where the multicast service is located as a cell reselection. highest priority;

The terminal is not supported to set at least one of the multicast service cell and the frequency point where the multicast service is located as the highest priority for cell reselection.
The method according to any one of claims 1 to 12, wherein after the terminal camps on the first cell in an inactive state and receives the first multicast service, the method further includes:

If it is determined that the first multicast service cannot be received, radio resource control (RRC) connection recovery is performed.
The method of claim 15, wherein the first cell is a multicast service cell that sends the first multicast service, and the terminal camps on the first cell in an inactive state and receives the first multicast service. After a multicast service is provided, the method further includes:

Perform cell selection or cell reselection and camp on the second cell;

When the second cell where the resident cell is located is capable of receiving the first multicast service, receive the first multicast service;

Wherein, the inability to receive the first multicast service includes:

Before performing cell selection or cell reselection, it is determined that the first multicast service cannot be received; or

When camping on the second cell, it is determined that the first multicast service cannot be received.
The method of claim 16, wherein the terminal is unable to receive the first multicast service under at least one of the following conditions:

The terminal camps on the second cell;

The second cell does not belong to the first area, and the first area is the effective area of the first multicast service;

The measurement result for the multicast channel or multicast signal matches a first preset value, and the first preset value indicates that the first multicast service cannot be received;

The evaluation result of the reception effect of the first multicast service matches a second preset value, and the second preset value indicates that the first multicast service cannot be received.
The method of claim 15, wherein the first cell is a cell that does not send the first multicast service, and the terminal camps on the first cell in an inactive state and receives the first multicast service. After broadcasting the service, the method further includes:

Perform cell selection or cell reselection in the first cell and camp on the second cell.
The method of claim 15, wherein the first cell is a cell that does not send the first multicast service, and the method further includes:

Perform a judgment operation on the multicast cell sending the first multicast service, the judgment operation being used to judge whether the first multicast service cannot be received;

The failure to receive the first multicast service includes: the result of the judgment operation indicates that the first multicast service cannot be received.
The method of claim 19, wherein the determining operation determines whether the first multicast service cannot be received based on at least one of the following:

performing at least one evaluation of camping and cell reselection with respect to the multicast service cell transmitting the first multicast service, the evaluation results obtained;

Measurement results of multicast channels or multicast signals;

The reception effect evaluation result of the first multicast service;

Wherein, the terminal cannot receive the first multicast service under at least one of the following conditions:

The evaluation result indicates that the multicast service cell sending the first multicast service does not meet the residency condition;

The measurement result of the multicast channel or multicast signal matches a third preset value, and the third preset value indicates that the first multicast service cannot be received;

The reception effect evaluation result matches a fourth preset value, and the fourth preset value indicates that the first multicast service cannot be received.
A multicast service receiving method includes:

The network side device sends network side signaling to the terminal, and the network side signaling is used by the terminal to determine the first cell or target frequency point;

Wherein, the first cell is a cell where the terminal camps in an inactive state and receives the first multicast service; or

The target frequency point is used by the terminal to determine a cell in which to camp and receive the first multicast service in an inactive state.
The method of claim 21, wherein the network side signaling includes first indication information, and the first indication information is used to indicate at least one of the following:

Prioritize camping in the first cell;

The target frequency point has the highest priority.
The method of claim 22, wherein the network side signaling includes at least one of the following:

Public signaling and dedicated signaling.
The method of claim 23, wherein the first indication information included in the public signaling is valid for all terminals that receive the public signaling; or, the first indication information included in the public signaling is The indication information is valid for a terminal of the first type that receives the public signaling, and the terminal is a terminal of the first type;

and / or,

The first indication information included in the public signaling is valid for the first multicast service.
The method according to claim 23, wherein the dedicated signaling is dedicated signaling issued by the serving cell in the connected state of the terminal.
The method of claim 23, wherein the first indication information is indication information carried in the first information field of the dedicated signaling, or the first indication information is the second information field of the dedicated signaling. Instruction information carried in the information field;

Wherein, the first information field includes at least one of the following:

The redirection domain defined in the protocol for the dedicated signaling, and the cell reselection configuration domain defined in the protocol for the dedicated signaling;

Wherein, the second information field is at least one information field newly defined in the dedicated signaling.
The method of claim 26, wherein the first indication information is the first part of the dedicated signaling. In the case of instruction information carried in the information field:

The dedicated signaling also includes second indication information, the second indication information is used to indicate the validity time of the first indication information; and/or

The dedicated signaling further includes third indication information, and the third indication information is used to instruct the first information domain to take effect on the first multicast service.
The method of claim 27, wherein the third indication information is used to indicate that the first information domain is effective for all multicast services; or

The third indication information is used to indicate at least one multicast service. The indication information carried in the first information field is effective for the at least one multicast service. The at least one multicast service includes the first Multicast services.
The method of claim 26, wherein when the first indication information is indication information carried in the second information field of the dedicated signaling:

The second information domain is effective for all multicast services; or

The dedicated signaling also includes fourth indication information. The fourth indication information is used to indicate that the second information domain is effective for at least one multicast service. The at least one multicast service includes the first multicast service. broadcast business.
The method according to any one of claims 21 to 29, wherein the first cell is a multicast service cell that sends the first multicast service; or

The first cell is a cell that does not send the first multicast service, and when the terminal is camped in the first cell, the terminal can receive the first multicast service.
The method of claim 30, wherein, when the first cell is a cell that does not send the first multicast service, the network side signaling is used to determine:

Prohibiting the terminal from setting at least one of the multicast service cell and the frequency point where the multicast service is located as the highest priority for cell reselection;

The terminal is not supported to set at least one of the multicast service cell and the frequency point where the multicast service is located as the highest priority for cell reselection.
A multicast service receiving device, including:

A determination module configured to determine the first cell or the target frequency point based on at least one of network side signaling, preset rules and terminal capabilities;

A receiving module, configured to camp on the first cell in an inactive state and receive the first multicast service;

Wherein, when the target frequency point is determined, the first cell where the terminal camps is determined based on the target frequency point.
A multicast service receiving device, including:

A sending module, configured to send network side signaling to the terminal, where the network side signaling is used by the terminal to determine the first cell or target frequency point;

Wherein, the first cell is a cell where the terminal camps in an inactive state and receives the first multicast service; or

The target frequency point is used by the terminal to determine a cell in which to camp and receive the first multicast service in an inactive state.
A terminal, including a processor and a memory. The memory stores programs or instructions that can be run on the processor. When the programs or instructions are executed by the processor, the implementation of any one of claims 1 to 20 is achieved. The steps of the multicast service receiving method described above.
A network side device, including a processor and a memory. The memory stores programs or instructions that can be run on the processor. When the program or instructions are executed by the processor, any one of claims 21 to 31 is implemented. The steps of the multicast service receiving method described in the item.
A readable storage medium storing programs or instructions on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the multicast service receiving method according to any one of claims 1 to 20 are implemented, Alternatively, when the program or instruction is executed by the processor, the steps of the multicast service receiving method according to any one of claims 21 to 31 are implemented.