A cell switching method and related equipment

Abstract

The present application provides a cell switching method and related equipment, including: receiving auxiliary information from a terminal device, the auxiliary information including first switching auxiliary information and / or second switching auxiliary information, the first switching auxiliary information is used to indicate whether the terminal device is capable of receiving a multicast service of interest through a cell DTX mode, and the second switching auxiliary information is used to indicate whether the terminal device is capable of receiving a broadcast service of interest through a cell DTX mode. Perform a switching decision based on the auxiliary information to determine a target cell. Send a switching command to the terminal device, the switching command is used to instruct the terminal device to switch to the target cell.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular to a cell switching method and related equipment. Background Art

[0002] At present, the discussion on cellular communication technology focuses more on the power consumption of terminals (battery size is limited and user experience is sensitive). However, with the development of green communication concepts and operators' consideration of their own interests in recent years, network energy saving has also begun to be discussed. Rel-18 / 19 has established a project on network energy saving, focusing on network energy saving.

[0003] In the current mechanism design, only for connected terminals, the cell discontinuous receiving (DTX) pattern can be configured for the terminal, and the configuration is similar to the DRX mechanism of the UE, which is periodically active. Specifically, Cell DTX means that the base station only turns on the sending function during the activation period, that is, if it is not active, the terminal does not require to receive downlink dynamic scheduling, semi-static downlink data transmission, etc. The current problem is that the DRX of the UE can save power as long as the UE is configured. However, for the Cell DTX solution, although the configuration is for the UE, because the cell or base station serves multiple terminals, a large number of UEs need to be configured with a similar DTX pattern, which will have an energy-saving effect for the network.

[0004] In order to achieve the above effect, it is necessary to aggregate UEs as much as possible to cells supporting the cell DTX mode, but this problem has yet to be solved. Summary of the invention

[0005] The present application provides a cell switching method and related devices, which are used for a terminal device to switch to a cell supporting a cellDTX mode, thereby facilitating energy saving.

[0006] The first aspect of the present application provides a cell switching method:

[0007] The access network device receives auxiliary information from the terminal device, the auxiliary information includes first switching auxiliary information and / or second switching auxiliary information, the first switching auxiliary information is used to indicate whether the terminal device is capable of receiving the multicast service of interest through the cell DTX mode, and the second switching auxiliary information is used to indicate whether the terminal device is capable of receiving the broadcast service of interest through the cell DTX mode. The access network device performs a switching decision based on the auxiliary information to determine the target cell. The access network device sends a switching command to the terminal device, and the switching command is used to instruct the terminal device to switch to the target cell.

[0008] In the present application, the terminal device reports switching auxiliary information to the access network device, so that the access network device can determine that the terminal device is capable of receiving and is interested in multicast services / broadcast services through the cell DTX mode, thereby selecting a cell that supports the multicast services / broadcast services of interest to the terminal device and that uses the cell DTX mode for the multicast services / broadcast services, and allowing the terminal device to switch to the cell, which is conducive to the terminal devices gathering in the cell that supports the cell DTX mode, thereby achieving network energy saving.

[0009] In a possible implementation, the first switching auxiliary information is further used to indicate whether the terminal device prefers to use the cell DTX mode to receive the multicast service of interest.

[0010] In a possible implementation, the second switching auxiliary information is further used to indicate whether the terminal device prefers to use the cell DTX mode to receive the broadcast service of interest.

[0011] In a possible implementation manner, the first switching assistance information is carried in a UAI message.

[0012] In a possible implementation manner, the second switching assistance information is carried in an MBMS interest indicator message.

[0013] The second aspect of the present application provides a cell switching method:

[0014] The terminal device sends auxiliary information to the access network device, and the auxiliary information includes first switching auxiliary information and / or second switching auxiliary information. The auxiliary information is used by the access network device to perform a switching decision to determine the target cell. The first switching auxiliary information is used to indicate whether the terminal device is capable of receiving the multicast service of interest through the cell DTX mode, and the second switching auxiliary information is used to indicate whether the terminal device is capable of receiving the broadcast service of interest through the cell DTX mode. The terminal device receives a switching command from the access network device, and the switching command is used to instruct the terminal device to switch to the target cell. The terminal device switches to the target cell according to the switching command.

[0015] In a possible implementation, the first switching auxiliary information is further used to indicate whether the terminal device prefers to use the cell DTX mode to receive the multicast service of interest.

[0016] In a possible implementation, the second switching auxiliary information is further used to indicate whether the terminal device prefers to use the cell DTX mode to receive the broadcast service of interest.

[0017] In a possible implementation manner, the first switching assistance information is carried in a UAI message.

[0018] In a possible implementation manner, the second switching assistance information is carried in an MBMS interest indicator message.

[0019] A third aspect of the present application provides an access network device, including a transceiver unit and a processing unit.

[0020] The transceiver unit is used to receive auxiliary information from the terminal device, the auxiliary information includes first switching auxiliary information and / or second switching auxiliary information, the first switching auxiliary information is used to indicate whether the terminal device is capable of receiving the multicast service of interest through the cell DTX mode, and the second switching auxiliary information is used to indicate whether the terminal device is capable of receiving the broadcast service of interest through the cell DTX mode.

[0021] The processing unit is used to perform a handover decision according to the auxiliary information to determine a target cell.

[0022] The transceiver unit is also used to send a switching command to the terminal device, and the switching command is used to instruct the terminal device to switch to the target cell.

[0023] In a possible implementation, the first switching auxiliary information is further used to indicate whether the terminal device prefers to use the cell DTX mode to receive the multicast service of interest.

[0024] In a possible implementation, the second switching auxiliary information is further used to indicate whether the terminal device prefers to use the cell DTX mode to receive the broadcast service of interest.

[0025] In a possible implementation manner, the first switching assistance information is carried in a UAI message.

[0026] In a possible implementation manner, the second switching assistance information is carried in an MBMS interest indicator message.

[0027] A fourth aspect of the present application provides a terminal device, including a transceiver unit and a processing unit.

[0028] The transceiver unit is used to send auxiliary information to the access network device, wherein the auxiliary information includes first handover auxiliary information and / or second handover auxiliary information. The auxiliary information is used by the access network device to perform handover decision to determine a target cell.

[0029] The first switching auxiliary information is used to indicate whether the terminal device is capable of receiving the multicast service of interest through the cell DTX mode, and the second switching auxiliary information is used to indicate whether the terminal device is capable of receiving the broadcast service of interest through the cell DTX mode.

[0030] The transceiver unit is also used to receive a switching command from the access network device, the switching command is used to instruct the terminal device to switch to a target cell, and the target cell is determined by the access network device based on the first switching auxiliary information and the second switching auxiliary information.

[0031] A processing unit is used to switch to the target cell according to the switching command.

[0032] In a possible implementation, the first switching auxiliary information is further used to indicate whether the terminal device prefers to use the cell DTX mode to receive the multicast service of interest.

[0033] In a possible implementation, the second switching auxiliary information is further used to indicate whether the terminal device prefers to use the cell DTX mode to receive the broadcast service of interest.

[0034] In a possible implementation manner, the first switching assistance information is carried in a UAI message.

[0035] In a possible implementation manner, the second switching assistance information is carried in an MBMS interest indicator message.

[0036] In a fifth aspect, the present application provides an access network device, comprising a processor and a memory, wherein the processor is coupled to the memory, and the memory is used to store instructions. When the instructions are executed by the processor, the access network device executes the method in the aforementioned first aspect.

[0037] In a sixth aspect, the present application provides a terminal device, including a processor and a memory, wherein the processor is coupled to the memory, and the memory is used to store instructions. When the instructions are executed by the processor, the terminal device executes the method in the aforementioned second aspect.

[0038] A seventh aspect of the present application provides a computer-readable storage medium:

[0039] Instructions are stored thereon, and when a computer executes the instructions, the computer executes the methods in the aforementioned various aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic diagram of an application scenario of this application;

[0041] Figure 2A schematic diagram of a flow chart of a cell switching method in this application;

[0042] Figure 3 is a schematic diagram of first switching auxiliary information;

[0043] Figure 4 is a schematic diagram of second switching auxiliary information;

[0044] Figure 5 A schematic diagram of business support information;

[0045] Figure 6 Another schematic diagram of the process of the cell switching method in the present application;

[0046] Figure 7 A schematic diagram of the structure of the access network device in this application;

[0047] Figure 8 A schematic diagram of the structure of the terminal device in this application;

[0048] Fig. 9 A structural diagram of a terminal device or access network device in this application. DETAILED DESCRIPTION

[0049] The following describes the embodiments of the present application in conjunction with the accompanying drawings. Obviously, the described embodiments are only embodiments of a part of the present application, rather than all embodiments. It is known to those skilled in the art that with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0050] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0051] The cell switching method in this application can be applied to the long term evolution (LTE) system, the fifth generation mobile network (5G) new radio (NR) system, the sixth generation mobile information technology (6G) system and subsequent evolution standards, and this application does not limit this. Figure 1As shown, the communication system includes at least a terminal device and an access network device. Among them, the terminal device may include a handheld device with a wireless connection function or a processing device connected to a wireless modem. The terminal device can communicate with a core network (e.g., 5G core network (5th generation core, 5GC)) via a radio access network (radio access network, RAN), and can exchange voice and / or data with the RAN. The terminal device may also be referred to as a terminal (Ter minal), user equipment (user equipment, UE), wireless terminal device, terminal device (mobile terminal, MT) device, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station, MS), mobile station (mobile), remote station (remote station), access point (access point, AP), remote terminal device (remote ter minal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), or user equipment (user device), etc. In addition, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) device, an augmented reality (AR) device, an extended reality (XR) service terminal, a cloud gaming (CG) service terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. It should be understood that the embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal device.

[0052] The access network device may be any device with wireless transceiver function, and may be used to be responsible for air interface related functions, such as wireless link maintenance function, wireless resource management function, and part of mobility management function. In addition, the access network device may also be configured with a baseband unit (BBU) with baseband signal processing function. Exemplarily, the access network device may be a radio access network (RAN) device that currently provides services to the terminal device. At present, some common examples of access network devices are: Node B (NB), evolved Node B (eNB), next generation node B (gNB) in 5G new radio (NR) system, node in 6G system (e.g., xNodeB), transmission reception point (TRP), radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved NodeB or home node (HNB)), etc. In addition, in a network structure such as a cloud radio access network (CloudRAN) or an open radio access network (ORAN), the access network device may be a device including a centralized unit (CU) (also referred to as a control unit) and / or a distributed unit (DU). Among them, the RAN device including the CU and the DU splits the protocol layer of the gNB in ​​the NR system, and the functions of some protocol layers are centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.

[0053] The cell switching method proposed in this application can be applied to the scenario of cell switching. Cell switching refers to the migration of the wireless link connection of the terminal device from the source cell to the target cell under the control of the wireless access network, which is a basic technical means to ensure seamless wireless mobile communication technology. The cell switching of the terminal device can be triggered by the access network device side. After the terminal device accesses a cell, the access network device sends a measurement control (Measure Control) message to the terminal device. The terminal device performs cell measurement according to the instruction of the measurement control message and sends a measurement report (MeasureReport) to the access network device. After receiving the measurement report, the access network device executes a switching decision to determine the target cell. Finally, a switching command is sent to the terminal device, and the terminal device performs a cell switching under the action of the switching command to access the target cell.

[0054] See also Figure 2 , the process of the cell switching method in this application is described in detail below:

[0055] 201. An access network device receives auxiliary information from a terminal device, where the auxiliary information includes first switching auxiliary information and / or second switching auxiliary information;

[0056] See also Figure 3 The first switching auxiliary information is used to indicate whether the terminal device is capable of receiving each multicast service of interest through the cell DTX mode. Optionally, the first switching auxiliary information may also include first preference information, which is used to indicate whether the terminal device prefers to receive each of the above multicast services through the cell DTX mode.

[0057] See also Figure 4 The second switching auxiliary information is used to indicate whether the terminal device is capable of receiving each broadcast service of interest through the cell DTX mode. Optionally, the second switching auxiliary information may also include second preference information, which includes whether the terminal device prefers to receive each of the above broadcast services through the cell DTX mode.

[0058] If the terminal device only receives multicast services, the auxiliary information only includes the first switching auxiliary information; if the terminal device only receives broadcast services, the auxiliary information only includes the second switching auxiliary information; if the terminal device receives both broadcast services and multicast services, the auxiliary information includes the first switching auxiliary information and the second switching auxiliary information.

[0059] The terminal device may carry the first switching assistance information in a UE assistance information (UE assistance information, UA I) message and send it to the access network device, and carry the second switching assistance information in an MBMS interest indicator message and send it to the access network device.

[0060] 202. The access network device performs a handover decision according to the auxiliary information to determine a target cell;

[0061] When the terminal device needs to switch cells, the access network device sends a measurement control message to the terminal device. The terminal device performs cell measurement according to the measurement control message and reports a measurement report to the access network device. The measurement report includes the signal quality of several measured cells.

[0062] In addition to the above auxiliary information, please refer to Figure 5 The access network device also obtains the service support information of the cell of the access network device itself and the cells of the neighboring access network devices of the access network device, which cells include the measured cell. The service support information includes the multicast services and broadcast services supported by the cell, and an indication of whether each multicast service and broadcast service uses the cell DTX mode.

[0063] The access network device performs a switching decision based on the above information to determine the target cell. Exemplarily, if the auxiliary information only includes the first switching auxiliary information, and the first switching auxiliary information does not include the first tendency information. The access network device selects a cell that supports the target service using the cell DTX mode as the target cell in the measured cell whose signal quality reaches the threshold value, and the target service is a multicast service of interest to the terminal device, and the terminal device is capable of receiving the multicast service through the cell DTX mode (determined based on the auxiliary information). If the first switching auxiliary information includes the first tendency information, similarly, the access network device selects a cell that supports the target service using the cell DTX mode as the target cell in the measured cell whose signal quality reaches the threshold value, and the target service is a multicast service of interest to the terminal device, and the terminal device is capable of and tends to receive the multicast service through the cell DTX mode (determined based on the auxiliary information).

[0064] If the auxiliary information only includes the second switching auxiliary information, and the second switching auxiliary information does not include the second tendency information. The access network device selects a cell that supports the target service using the cellDTX mode as the target cell in the measured cell whose signal quality reaches the threshold value, and the target service is the broadcast service of interest to the terminal device, and the terminal device is capable of receiving the broadcast service through the cell DTX mode (determined based on the auxiliary information). If the second switching auxiliary information includes the second tendency information, similarly, the access network device selects a cell that supports the target service using the cell DTX mode as the target cell in the measured cell whose signal quality reaches the threshold value, and the target service is the broadcast service of interest to the terminal device, and the terminal device is capable of and tends to receive the broadcast service through the cell DTX mode (determined based on the auxiliary information).

[0065] If the auxiliary information includes the first handover auxiliary information and the second handover auxiliary information, and the first handover auxiliary information does not include the first tendency information, and the second handover auxiliary information does not include the second tendency information, then the access network device selects a cell that supports the target service using the cell DTX mode as the target cell in the measured cell whose signal quality reaches the threshold value, and the target service is the multicast service or broadcast service of interest to the terminal device, and the terminal device is capable of receiving the multicast service or broadcast service through the cell DTX mode (determined based on the auxiliary information).

[0066] If the auxiliary information includes the first switching auxiliary information and the second switching auxiliary information, and the first switching auxiliary information includes the first tendency information, and the second switching auxiliary information includes the second tendency information, then the access network device selects a cell that supports the target service using the cell DTX mode as the target cell in the measured cell whose signal quality reaches the threshold value, and the target service is a multicast service or a broadcast service of interest to the terminal device, and the terminal device is capable of and tends to receive the multicast service or the broadcast service through the cell DTX mode (determined based on the auxiliary information).

[0067] Of course, the above are only some examples. In actual implementation, the access network device may perform handover decision according to the auxiliary information and determine the target cell in various ways, which will not be listed here one by one.

[0068] 203. The access network device sends a switching command to the terminal device, where the switching command is used to instruct the terminal device to switch to the target cell.

[0069] After determining the target cell, the access network device sends a handover command to the terminal device, thereby instructing the terminal device to handover to the target cell. After receiving the handover command, the terminal device hands over to the target cell according to the instruction of the handover command.

[0070] In the present application, the terminal device reports switching auxiliary information to the access network device, so that the access network device can determine that the terminal device is capable of receiving and is interested in multicast services / broadcast services through the cell DTX mode, thereby selecting a cell that supports the multicast services / broadcast services of interest to the terminal device and that uses the cell DTX mode for the multicast services / broadcast services, and allowing the terminal device to switch to the cell, which is conducive to the terminal devices gathering in the cell that supports the cell DTX mode, thereby achieving network energy saving.

[0071] The above describes a process of the cell switching method in this application. Figure 6 , another process of the cell switching method in this application is introduced below:

[0072] 601. The terminal device sends auxiliary information to the access network device, where the auxiliary information includes first switching auxiliary information and / or second switching auxiliary information;

[0073] This step is similar to the aforementioned step 201 and will not be described in detail here. The auxiliary information is used by the access network device to perform handover decision to determine the target cell, which is similar to the aforementioned step 202.

[0074] 602. The terminal device receives a switching command from the access network device;

[0075] This step is similar to the aforementioned step 203 and will not be described in detail here.

[0076] 603. The terminal device switches to the target cell according to the switching command.

[0077] This step is similar to the aforementioned step 203 and will not be described in detail here.

[0078] The above introduces the cell switching method in this application. The following introduces the device in this application:

[0079] See also Figure 7 The access network device 700 in the present application includes a transceiver unit 701 and a processing unit 702. The transceiver unit 701 and the processing unit 702 can be implemented by software or hardware.

[0080] The transceiver unit 701 is used to receive auxiliary information from the terminal device, where the auxiliary information includes first switching auxiliary information and / or second switching auxiliary information, where the first switching auxiliary information is used to indicate whether the terminal device is capable of receiving the multicast service of interest through the cell DTX mode, and the second switching auxiliary information is used to indicate whether the terminal device is capable of receiving the broadcast service of interest through the cell DTX mode.

[0081] The processing unit 702 is configured to perform a handover decision according to the auxiliary information to determine a target cell.

[0082] The transceiver unit 701 is also used to send a switching command to the terminal device, where the switching command is used to instruct the terminal device to switch to the target cell.

[0083] In a possible implementation, the first switching auxiliary information is further used to indicate whether the terminal device prefers to use the cell DTX mode to receive the multicast service of interest.

[0084] In a possible implementation, the second switching auxiliary information is further used to indicate whether the terminal device prefers to use the cell DTX mode to receive the broadcast service of interest.

[0085] In a possible implementation manner, the first switching assistance information is carried in a UAI message.

[0086] In a possible implementation manner, the second switching assistance information is carried in an MBMS interest indicator message.

[0087] See also Figure 8 The terminal device 800 in the present application includes a transceiver unit 801 and a processing unit 802. The transceiver unit 801 and the processing unit 802 can be implemented by software or hardware.

[0088] The transceiver unit 801 is used to send auxiliary information to the access network device, where the auxiliary information includes first switching auxiliary information and / or second switching auxiliary information. The auxiliary information is used by the access network device to perform a switching decision to determine a target cell.

[0089] The first switching auxiliary information is used to indicate whether the terminal device is capable of receiving the multicast service of interest through the cell DTX mode, and the second switching auxiliary information is used to indicate whether the terminal device is capable of receiving the broadcast service of interest through the cell DTX mode.

[0090] The transceiver unit 801 is further used to receive a switching command from the access network device, where the switching command is used to instruct the terminal device to switch to the target cell.

[0091] The processing unit 802 is configured to switch to a target cell according to a switching command.

[0092] In a possible implementation, the first switching auxiliary information is further used to indicate whether the terminal device prefers to use the cell DTX mode to receive the multicast service of interest.

[0093] In a possible implementation, the second switching auxiliary information is further used to indicate whether the terminal device prefers to use the cell DTX mode to receive the broadcast service of interest.

[0094] In a possible implementation manner, the first switching assistance information is carried in a UAI message.

[0095] In a possible implementation manner, the second switching assistance information is carried in an MBMS interest indicator message.

[0096] Fig. 9 9 is a schematic diagram of a device structure provided by the present application, which is used to implement the method performed by the access network device or the terminal device in the above-mentioned embodiments. The device 900 may include one or more central processing units (CPU) 901 and a memory 905, in which one or more application programs or data are stored.

[0097] Among them, the memory 905 can be a volatile storage or a persistent storage. The program stored in the memory 905 can include one or more modules, and each module can include a series of instruction operations in the server. Furthermore, the central processor 901 can be configured to communicate with the memory 905 and execute a series of instruction operations in the memory 905 on the device 900. The device 900 may also include one or more power supplies 902, one or more wired or wireless network interfaces 903, one or more input and output interfaces 904, and / or, one or more operating systems.

[0098] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0099] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0100] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0101] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0102] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, read-only memory), random access memory (RAM, random access memory), disk or optical disk and other media that can store program code.

Claims

1. A cell switching method, characterized in that: include: The access network device receives auxiliary information from the terminal device, the auxiliary information including first switching auxiliary information and / or second switching auxiliary information, the first switching auxiliary information is used to indicate whether the terminal device is capable of receiving the multicast service of interest through the cell DTX mode, and the second switching auxiliary information is used to indicate whether the terminal device is capable of receiving the broadcast service of interest through the cell DTX mode; The access network device performs a handover decision according to the auxiliary information to determine a target cell; The access network device sends a switching command to the terminal device, where the switching command is used to instruct the terminal device to switch to the target cell.

2. The method according to claim 1, characterized in that The first switching auxiliary information is also used to indicate whether the terminal device prefers to use the cell DTX mode to receive the multicast service of interest.

3. The method according to claim 1 or 2, characterized in that: The second switching auxiliary information is also used to indicate whether the terminal device prefers to use the cell DTX mode to receive the broadcast service of interest.

4. The method according to claim 3, characterized in that The first switching assistance information is carried in a UAI message.

5. The method according to claim 4, characterized in that The second switching assistance information is carried in the MBMS interest indicator message.

6. A cell switching method, characterized in that: include: The terminal device sends auxiliary information to the access network device, where the auxiliary information includes first handover auxiliary information and / or second handover auxiliary information, and the auxiliary information is used by the access network device to perform a handover decision to determine a target cell; The first switching auxiliary information is used to indicate whether the terminal device is capable of receiving a multicast service of interest through a cell DTX mode, and the second switching auxiliary information is used to indicate whether the terminal device is capable of receiving a broadcast service of interest through a cell DTX mode; The terminal device receives a handover command from the access network device, where the handover command is used to instruct the terminal device to handover to the target cell; The terminal device switches to the target cell according to the switching command.

7. The method according to claim 6, characterized in that The first switching auxiliary information is also used to indicate whether the terminal device prefers to use the cell DTX mode to receive the multicast service of interest.

8. The method according to claim 6 or 7, characterized in that: The second switching auxiliary information is also used to indicate whether the terminal device prefers to use the cell DTX mode to receive the broadcast service of interest.

9. The method according to claim 8, characterized in that The first switching assistance information is carried in a UAI message.

10. The method according to claim 9, characterized in that The second switching assistance information is carried in the MBMS interest indicator message.

11. An access network device, characterized in that: The device comprises a processor and a memory, wherein the processor is coupled to the memory, and the memory is used to store instructions. When the instructions are executed by the processor, the access network device executes the method according to any one of claims 1 to 5.

12. A terminal device, characterized in that: The method comprises a processor and a memory, wherein the processor is coupled to the memory, and the memory is used to store instructions. When the instructions are executed by the processor, the terminal device executes the method according to any one of claims 6 to 10.

13. A computer-readable storage medium, characterized in that: Instructions are stored thereon, and when a computer executes the instructions, the computer executes the method according to any one of claims 1 to 10.

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