A cell management method and a communication device

Abstract

The present application relates to the field of communication technologies, and discloses a cell management method and a communication device. The method is as follows: A first network device receives a first message from a terminal device. The first message includes information of a neighboring cell, and the neighboring cell includes a first cell under a second network device. The first network device sends first request information to the second network device through a core network device according to the first message. The first request information is used to request management of the first cell. The effect of cell management can be improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communication technologies, and in particular, to a cell management method and a communication device. Background Art

[0002] In the network energy-saving scenario, it involves the management of cells by network devices, such as cell handover, cell activation, or cell shutdown.

[0003] The network device needs to obtain cell information and manage the cell according to the cell information. There may be direct interfaces such as Xn or X2 interfaces between network devices, and the network device can obtain the cell information under the other network device through the direct interface with the other network device. However, there may be no directly communicable interface between some network devices, so that the network device cannot obtain the cell information under the other network device without a direct communication interface, and thus cannot accurately implement cell management. Summary of the Invention

[0004] The embodiments of the present application provide a cell management method and a communication device, in order to improve the effect of cell management.

[0005] In a first aspect, the embodiments of the present application provide a cell management method, including: a first network device receives a first message from a terminal device, the first message includes information of a neighboring cell, and the neighboring cell includes a first cell under a second network device; the first network device sends a first request message to the second network device through a core network device according to the first message, and the first request message is used to request to manage the first cell. By means of the terminal device reporting the neighboring cell information, there is no need for network devices to exchange cell information, which can be adapted to the scenario of cell management under network devices without direct interfaces. For example, if there is no direct interface between the first network device and the second network device, the first network device can manage the cell under the second network device through the core network device, and can improve the effect of cell management.

[0006] In an optional implementation manner, the information of the neighboring cell includes any one or more of the following information: the identifier of the neighboring cell, bandwidth, load, number of beams, maximum transmission power, or period of the reference signal.

[0007] In an optional implementation manner, the first request message is used to request to activate the first cell.

[0008] In an alternative implementation, the first request message includes activation information, and the activation information indicates one or more of the following: activation reason, load information of the first network device, load information of the serving cell of the terminal device, or target load information of the first cell. By carrying the activation information, the second network device can flexibly activate the cell according to the requirements of the first network device, avoiding resource allocation waste or insufficiency caused by configuring fixed activation parameters, which helps to improve the network resource utilization rate.

[0009] In an alternative implementation, the method further includes: the first network device determines that the target cell to which the terminal device switches is the first cell; the first network device determines that the first cell is in a deactivated state. When the first network device determines that the terminal device needs to switch to the first cell under the second network device, it first determines that the first cell is in a deactivated state, and then sends a first request message to request activation of the first cell, which can avoid handover failures caused by direct handover, thereby improving the effect of cell management.

[0010] In an alternative implementation, the first network device determines that the first cell is in a deactivated state, including: the first network device sends a status request message to the second network device through the core network device, and the status request message is used to request the cell in the deactivated state under the second network device; the first network device receives, through the core network device, status indication information from the second network device, and the status indication information is used to indicate the cell in the deactivated state under the second network device; if the cell indicated by the status indication information includes the first cell, the first network device determines that the first cell is in a deactivated state.

[0011] In an alternative implementation, the first request message is further used to request a handover to the first cell.

[0012] In an alternative implementation, the first network device determines that the first cell is in a deactivated state, including: the first network device sends a second request message to the second network device through the core network device, and the second request message is used to request a handover to the first cell; the first network device receives, through the core network device, information from the second network device indicating that the first cell is in a deactivated state.

[0013] In an alternative implementation, the first request message is used to request a handover to the first cell or the first request message is used to request to close the first cell, and the first cell is in an activated state.

[0014] In an alternative implementation, the method further includes: the first network device sending a second message to the terminal device, where the second message is used to instruct the terminal device to obtain information about the neighboring cell.

[0015] In a second aspect, an embodiment of the present application provides a cell management method, including: a second network device receiving first request information from a first terminal device through a core network device, where the first request information is used to request management of the first cell, and the first request information is determined by the first network device according to a first message sent by the terminal device; where the first message includes information about a neighboring cell, and the neighboring cell includes a first cell under the second network device; the second network device manages the first cell according to the first request information.

[0016] In the embodiment of the present application, by means of the terminal device reporting information about neighboring cells, there is no need for network devices to exchange cell information, and it can be adapted to the scenario of cell management under network devices that do not have a direct interface. For example, if there is no direct interface between the first network device and the second network device, the first network device can manage the cells under the second network device through the core network device, which can improve the effect of cell management.

[0017] In an alternative implementation, the information about the neighboring cell may include any one or more of the following information: the identifier of the neighboring cell, bandwidth, load, number of beams, maximum transmission power, or period of the reference signal.

[0018] In an alternative implementation, the first request information is used to request activation of the first cell.

[0019] In an alternative implementation, the first request information contains activation information, and the activation information indicates one or more of the following information: activation reason, load information of the first network device, load information of the serving cell of the terminal device, or target load information of the first cell;

[0020] The second network device manages the first cell according to the first request information, including: the second network device activates the first cell according to the activation information.

[0021] In an alternative implementation, the first request information is used to request a handover to the first cell or the first request information is used to request closing of the first cell, and the first cell is in a connected state.

[0022] In a third aspect, an embodiment of the present application provides a communication device, including a communication module configured to receive a first message from a terminal device, where the first message includes information of a neighboring cell, and the neighboring cell includes a first cell under a second network device; and a processing module configured to determine first request information according to the first message, where the first request information is used to request management of the first cell; and the communication module is further configured to send the first request information to the second network device through a core network device.

[0023] The communication device in the embodiment of the present application can be applied to a first network device. By means of a terminal device reporting neighboring cell information, it is not necessary for network devices to interact cell information with each other, which is suitable for the scenario of cell management under network devices without a direct interface. For example, if there is no direct interface between the first network device and the second network device, the first network device can manage the cell under the second network device through the core network device, which can improve the effect of cell management.

[0024] In an optional implementation manner, the information of the neighboring cell includes any one or more of the following information: an identifier of the neighboring cell, a bandwidth, a load, a number of beams, a maximum transmission power, or a period of a reference signal.

[0025] In an optional implementation manner, the first request information is used to request activation of the first cell.

[0026] In an optional implementation manner, the first request information includes activation information, and the activation information indicates one or more of the following information: a reason for activation, load information of the first network device, load information of a serving cell of the terminal device, or target load information of the first cell. By carrying the activation information, the second network device can flexibly activate the cell according to the requirements of the first network device, avoiding the situation of waste or insufficiency of resource allocation caused by configuring fixed activation parameters, which helps to improve the utilization rate of network resources.

[0027] In an optional implementation manner, the processing module is further configured to: determine that a target cell to which the terminal device switches is the first cell; and determine that the first cell is in a deactivated state. When the first network device determines that the terminal device needs to switch to the first cell under the second network device, it first determines that the first cell is in a deactivated state and sends the first request information to request activation of the first cell, which can avoid handover failures caused by direct handover, thereby improving the effect of cell management.

[0028] In an alternative implementation, the communication module is further configured to send status request information to the second network device via the core network device, where the status request information is used to request the cells in the second network device that are in the deactivated state; receive status indication information from the second network device via the core network device, where the status indication information is used to indicate the cells in the second network device that are in the deactivated state; the processing module is further configured to determine that the first cell is in the deactivated state when the first cell is included in the cells indicated by the status indication information.

[0029] In an alternative implementation, the first request information is further used to request a handover to the first cell.

[0030] In an alternative implementation, the communication module is further configured to: send second request information to the second network device via the core network device, where the second request information is used to request a handover to the first cell; receive, via the core network device, information from the second network device indicating that the first cell is in the deactivated state.

[0031] In an alternative implementation, the first request information is used to request a handover to the first cell or the first request information is used to request to close the first cell, and the first cell is in the activated state.

[0032] In an alternative implementation, the communication module is further configured to send a second message to the terminal device, where the second message is used to instruct the terminal device to obtain information about neighboring cells.

[0033] In a fourth aspect, an embodiment of the present application provides a communication device, including: a communication module, configured to receive first request information from a first terminal device via a core network device, where the first request information is used to request management of the first cell, and the first request information is determined by the first network device according to a first message sent by the terminal device; where the first message includes information about neighboring cells, and the neighboring cells include a first cell under the second network device; a processing module, configured to manage the first cell according to the first request information.

[0034] The communication device according to the embodiment of the present application is applied to a second network device, and receives, through a core network device, a request from a first network device for managing a cell under the second network device, and manages the cell under the second network device according to the request. Among them, the first network device determines the information of the cell under the second network device by the way of the terminal device reporting neighbor cell information, without the need for the second network device and the first network device to interact with each other about the cell information. In the case where there is no direct interface between the first network device and the second network device, accurate management of neighbor cells is realized through the core network device, which can improve the effect of cell management.

[0035] In an alternative implementation, the information of the neighbor cell includes any one or more of the following information: the identifier of the neighbor cell, bandwidth, load, number of beams, maximum transmission power, or the period of the reference signal.

[0036] In an alternative implementation, the first request message is used to request to activate the first cell.

[0037] In an alternative implementation, the first request message contains activation information, and the activation information indicates one or more of the following information: activation reason, load information of the first network device, load information of the serving cell of the terminal device, or target load information of the first cell; the processing module is further configured to activate the first cell by the second network device according to the activation information.

[0038] The embodiment of the present application takes into account the relevant current load and the required target load on the side of the first network device, that is, activates the cell flexibly according to the requirements of the first network device, and avoids the situation of waste or insufficiency of resource allocation caused by configuring fixed activation parameters, which helps to improve the utilization rate of network resources.

[0039] In an alternative implementation, the first request message is used to request a handover to the first cell or the first request message is used to request to close the first cell, and the first cell is in a connected state.

[0040] In a fifth aspect, an embodiment of the present application provides a communication device, including: a processor and a memory; the memory is used for storing a computer program; the processor is used for executing the computer program stored in the memory, so that the communication device executes the method in any possible implementation manner of the first aspect.

[0041] In a sixth aspect, an embodiment of the present application provides a communication device, including: a processor and an interface circuit; the interface circuit is used for receiving code instructions and transmitting them to the processor; the processor is used for running the code instructions to execute the method in any possible implementation manner of the first aspect.

[0042] In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium storing instructions that, when executed, implement the method in any possible implementation manner of the first aspect.

[0043] In an eighth aspect, an embodiment of the present application provides a computer program product, which includes computer program code that, when run, causes the method in any possible implementation manner of the first aspect to be executed.

[0044] For the technical effects that can be achieved in the fourth to eighth aspects above, please refer to the technical effects that can be brought by the corresponding technical solutions in the first to third aspects above, and details are not repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 FIG. [FIGURE NUMBER] is a schematic structural diagram of a communication system provided by an embodiment of the present application;

[0046] Figure 2 FIG. [FIGURE NUMBER] is a schematic structural diagram of a network device provided by an embodiment of the present application;

[0047] Figure 3a FIG. [FIGURE NUMBER] is a schematic flowchart of a cell management method provided by an embodiment of the present application;

[0048] Figure 3b FIG. [FIGURE NUMBER] is a schematic flowchart of a cell management method provided by an embodiment of the present application;

[0049] Figure 4 FIG. [FIGURE NUMBER] is a schematic flowchart of a cell management method provided by an embodiment of the present application;

[0050] Figure 5 FIG. [FIGURE NUMBER] is a schematic flowchart of a cell management method provided by an embodiment of the present application;

[0051] Figure 6 FIG. [FIGURE NUMBER] is a schematic structural diagram of a communication device provided by an embodiment of the present application;

[0052] Figure 7 FIG. [FIGURE NUMBER] is a schematic structural diagram of a communication device provided by an embodiment of the present application;

[0053] Figure 8 FIG. [FIGURE NUMBER] is a schematic structural diagram of a communication device provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0054] Embodiments of the present application can be applied to 4G systems, 5G systems, non-terrestrial network (NTN) systems, or future mobile communication systems.

[0055] As shown Figure 1 in the figure, it is a communication system architecture adaptable to the embodiments of the present application. The system includes at least two network devices, a core network device, and a terminal device. Figure 1 Two network devices are schematically shown in the figure, which can be represented by a first network device and a second network device. The terminal device is within the coverage area of the first network device.

[0056] Among them, the terminal device is a device with wireless transceiver functions. The terminal device can be deployed on land, including indoor or outdoor. The terminal device can be a handheld device or a vehicle-mounted device; it can also be deployed on the water surface (such as a ship, etc.); it can also be deployed in the air (such as an airplane, a balloon, a satellite, etc.). Specifically, the terminal device can be a mobile phone, a pad, a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, and can also include a user equipment (UE), etc. The terminal device can also be a device that serves as a terminal function in device-to-device (D2D) communication.

[0057] A network device is a device in a wireless network, such as a radio access network (RAN) node that connects a terminal device to the wireless network. Currently, some examples of RAN nodes are: base station devices (generation NodeB, gNB), transmission reception points (TRP), evolved Node B (eNB), radio network controllers (RNC), Node B (NB), base station controllers (BSC), base transceiver stations (BTS), home base stations (e.g., home evolved NodeB, or home Node B, HNB), base band units (BBU), or wireless fidelity (Wifi) access points (AP), integrated access and backhaul (IAB), etc. The network device can also be a device that serves as a base station in D2D communication.

[0058] The network device can also be an architecture that includes a centralized unit (CU) and / or a distributed unit (DU). As Figure 2 Figure 1 shows the structure of a network device with separated CU-DU. The network device can include a CU node and a DU node.

[0059] In an alternative embodiment, the central unit (CU) node can be divided into a control plane (CU-CP) and a user plane (CU-UP). The network device may specifically include at least one of a CU-CP, a CU-UP, and a distributed unit (DU) node. Among them, the CU-CP is responsible for control plane functions, mainly including radio resource control (RRC) and packet data convergence protocol - control plane (PDCP-C). PDCP-C is mainly responsible for encryption, decryption, integrity protection, and data transmission of control plane data. The CU-UP is responsible for user plane functions, mainly including service data adaptation protocol (SDAP) and PDCP-user plane (PDCP-U). Among them, SDAP is mainly responsible for processing the data of the core network and mapping the flow to the bearer. PDCP-U is mainly responsible for encryption, decryption, integrity protection, header compression, sequence number maintenance, and data transmission of the data plane. The CU-CP and the CU-UP are connected through an E1 interface; the CU-CP is connected to the DU through F1-C (control plane), and the CU-UP is connected to the DU through F1-U (user plane). In addition, the CU-CP can also be connected to the core network on behalf of the CU through the Ng interface. Optionally, PDCP-C can also be deployed in the CU-UP, and the embodiments of the present application do not limit this. The DU node includes a radio link control (RLC) layer, a media access control (MAC) layer, and a physical layer (PHY).

[0060] In another alternative embodiment, the network device may specifically include a radio access network (RAN) device of a CU node and a DU node. The CU and the RAN device are connected through an F1 interface, and the RAN device includes an RLC, a MAC, and a PHY.

[0061] The core network device is mainly responsible for the access management and mobility management of terminal devices, such as registration management, connection management, mobility management, reachability management, etc. For example, in the LTE system, the core network device may include at least one core network device of the mobility management function and access management function, session management function (SMF), and user plane management function (UPF) in the mobility management entity (MME); in the 5G network, the core network device may include at least one core network device of the access and mobility management function (AMF), session management function (SMF), and user plane management function (UPF).

[0062] Combined with Figure 1 In the communication system architecture shown, in the embodiments of the present application, the first network device obtains the cell information of the cells under the second network device in the neighboring cells by reporting the information of the neighboring cells by the terminal device, and then manages the cells under the second network device through the core network device, without the need for the network devices to exchange cell information, which is suitable for the scenario of cell management under network devices that do not have a direct interface. For example, when there is no direct interface between the first network device and the second network device, the first network device can manage the cells under the second network device through the core network device, which can improve the effect of cell management.

[0063] In an alternative embodiment, the first network device and the second network device may be similar network devices in different network systems. Taking the network device as a base station device as an example, among them, similar base station devices in different network systems belong to inter-system intra-RAT. The different systems are defined by different network systems to which the core network devices belong, and the same RAT is defined by the same type of base station device. For example, one of them may be an LTE base station connected to a 4G core network device, and the other may be an LTE base station connected to a 5G core network device. In another alternative embodiment, the first network device and the second network device may be different network devices in the same network system. Taking the network device as a base station device as an example, among them, different base station devices in the same network system belong to intra-system inter-RAT. The same system is defined by the same network system to which the core network device belongs, and the different RATs are defined by different types of base station devices. For example, one of them may be an LTE base station connected to a 5G core network device, and the other may be an NR base station connected to a 5G core network device.

[0064] There may be one or more core network devices between the first network device and the second network device. Figure 1 One core network device is illustrated, but it is not limited that the messages between the first network device and the second network device pass through one core network device for transmission.

[0065] The embodiments of the present application provide a cell management method and a communication device, which can be applied to Figure 1 the communication system illustrated. Based on the neighboring cell information reported by the terminal device, the network device obtains the information of the cells belonging to other network devices in the neighboring cells, avoiding errors in managing cells caused by the inability to interact with base stations without direct interfaces. Since the principles of the method and the device for solving the problem are the same, the method part and the device part embodiments can be referred to each other, and the repeated parts will not be elaborated.

[0066] It can be understood that in the embodiments of the present application, the terminal device, the first network device, the second network device, and / or the core network device may execute some or all of the steps in the embodiments of the present application. These steps or operations are only examples, and the embodiments of the present application may also execute other operations or various deformations of the operations. In addition, the various steps may be executed in different orders presented in the embodiments of the present application, and it is possible not to execute all the operations in the embodiments of the present application.

[0067] The embodiments of the present application will be described in detail below with reference to the accompanying drawings. The multiple involved in the present application refers to two or more than two. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after. In addition, it should be understood that although terms such as first and second may be used to describe each data in the embodiments of the present invention, these data should not be limited to these terms. These terms are only used to distinguish each data from each other.

[0068] As Figure 3a shown, the embodiments of the present application provide a cell management method, and the method is as follows.

[0069] S300, the first network device determines the neighboring cells of the serving cell where the terminal device is located.

[0070] The first network device can determine the neighboring cells of the serving cell where the terminal device is located through the identifiers of the neighboring cells reported by the terminal device. Among them, the identifiers of the neighboring cells can include one or more of cell global identifier (CGI), physical cell identifier (PCI), frequency point: absolute radio frequency channel number (ARFCN), and cell identifier. The embodiments of the present application do not limit this.

[0071] In addition, it should be noted that S300 is an optional step, which is shown by a dotted line in Figure 3a and can be omitted, that is, S301 can also be directly executed without executing S300. The embodiments of the present application do not limit this.

[0072] S301, the first network device sends a second message to the terminal device, and the terminal device receives the second message from the first network device.

[0073] Among them, the second message is used to instruct the terminal device to obtain information about neighboring cells. Optionally, the second message contains the aforementioned information about neighboring cells. In response to the second message, the terminal device obtains the information about neighboring cells contained in the second message, and carries the obtained information about neighboring cells in the first message and sends it to the first network device. Optionally, the second message does not contain the aforementioned information about neighboring cells. The terminal device obtains the information about neighboring cells by itself, and carries the obtained information about neighboring cells in the first message and sends it to the first network device.

[0074] Furthermore, the first network device may specifically instruct the terminal device to obtain information of some or all of the neighboring cells. Optionally, the second message is used to instruct the terminal device to obtain information of some or all of the neighboring cells. In an alternative embodiment, the first network device may carry one or more identifiers of neighboring cells in the second message. Then, the second terminal device receives the second message and obtains information of the neighboring cells belonging to the identifiers carried in the second message. In another alternative embodiment, the first network device may carry one or more identifiers of neighboring cells and one or more acquisition flags in the second message. The identifiers of the neighboring cells correspond to the acquisition flags one by one, and the acquisition flag is used to indicate whether to obtain information of the neighboring cell corresponding to the acquisition flag. Specifically, the acquisition flag may be set to bit "0" to instruct the terminal device not to obtain information of the neighboring cell corresponding to the acquisition flag, and the acquisition flag is set to bit "1" to instruct the terminal device to obtain information of the neighboring cell corresponding to the acquisition flag.

[0075] Based on this, the first network device may determine neighboring cells that meet the condition in the neighboring cells. The condition is that the network device to which the neighboring cell belongs does not have a direct interface with the first network device. By carrying the identifiers of the neighboring cells that meet the condition in the second message; or by carrying the identifiers of the neighboring cells reported by the terminal device in the second message, and setting the acquisition flag corresponding to the identifier of each neighboring cell to bit "1" for the neighboring cells that meet the condition, to instruct the terminal device to obtain information of the neighboring cells whose network devices do not have a direct interface with the first network device. Then, the terminal device obtains information of the neighboring cells whose network devices do not have a direct interface with the first network device according to the second message and reports it to the network device.

[0076] In addition, it should be noted that this S301 is an optional step, which is indicated by a dashed line in Figure 3a and can be omitted, that is, S302 can also be directly executed without executing S301. The embodiments of the present application do not limit this.

[0077] S302. The terminal device sends a first message to the first network device, and the first network device receives the first message from the terminal device.

[0078] The first message includes information of neighboring cells, and the neighboring cells include a first cell under a second network device.

[0079] Among them, the information of neighboring cells may include any one or more of the following information: the identifier of the neighboring cell, bandwidth, load, number of beams, maximum transmission power, or the period of the reference signal. The reference signal includes: physical broadcast channel block (PBCH Block), synchronization signal block (SSB), or synchronization signal / physical broadcast channel block (SS / PBCH Block), etc. The load may be at the network slice level, public land mobile network (PLMN) level, non-public network (NPN) level, or service type level.

[0080] Optionally, without performing the foregoing S301 to S302, the terminal device obtains the information of neighboring cells by itself and carries the obtained information of neighboring cells in the first message and sends it to the first network device.

[0081] S304. The first network device sends the first request message to the second network device through the core network device according to the first message, and the second network device receives the first request message from the first network device through the core network device.

[0082] The first request message is used to request the management of the first cell. Specifically, the first network device sends the first request message to the core network device, and the core network device then sends the received first request message to the second network device.

[0083] In the embodiment of the present application, the first network device obtains the information of the cells belonging to the second network device in the neighboring cells by reporting the information of the neighboring cells by the terminal device, and then manages the cells under the second network device through the core network device, without the need for the network devices to exchange cell information, which is suitable for the scenario of cell management under network devices without a direct interface. For example, when there is no direct interface between the first network device and the second network device, the first network device can manage the cells under the second network device through the core network device, which can improve the effect of cell management.

[0084] The following gives an example of the method of managing the first cell in the case where the first request message is used to request the management of the first cell.

[0085] In an alternative embodiment, the first cell is in a deactivated state, and the first request message sent by the first network device in S304 is used to request activation of the first cell. The second network device activates the first cell when receiving the first request message. When the first request message is an activation request for the first cell, the second network device performs an activation operation on the first cell when receiving the first request message.

[0086] Among them, the deactivated state of the cell can be understood as the cell being completely closed, the cell closing some common channels, the cell only opening some common channels, the cell not supporting services for non-connected terminal devices, the cell not supporting services for connected terminal devices, etc. The activated state of the cell can be understood as all common channels of the cell sending normally or the cell supporting services for non-connected terminal devices.

[0087] Optionally, the first request message includes activation information, and the activation information indicates one or more of the following information: activation reason, load information of the first network device, load information of the serving cell of the terminal device, or target load information of the first cell. Among them, the activation reason can be "load", the target load information of the first cell represents the load information to be adjusted to the first cell, and the load information includes at least one of information such as resource occupancy rate, usage percentage of downlink guaranteed bit rate (GBR) / non-guaranteed rate (Non-GBR), cell capacity level, available capacity percentage, etc. When receiving the first request message, the second network device can activate the first cell according to the activation information included therein. By carrying the activation information, the second network device can flexibly activate the cell according to the requirements of the first network device, avoiding the situation of waste or insufficiency of resource allocation caused by configuring fixed activation parameters, which helps to improve the utilization rate of network resources.

[0088] In an alternative embodiment, the first network device may send the first request message to request activation of the first cell based on requirements such as load balancing or cell handover in cell management; or it may adjust the state of neighboring cells and send the first request message to request activation of a cell in a deactivated state under the second network device, such as the first cell.

[0089] Taking the example that the first network device determines that load sharing by neighboring cells is required and requests activation of the first cell. Optionally, when the first network device sends the first request message to the second network device through the core network device according to the first message, the foregoing method further includes: the first network device determines that the target cell for load sharing is the first cell; the first network device determines that the first cell is in a deactivated state.

[0090] The first network device may determine the target cell for load sharing according to the information of the neighboring cell in the first message. Specifically, the target cell may be determined according to the bandwidth and / or other information of the neighboring cell. For example, considering network energy saving, the cell with small bandwidth under the second network device may be determined as the target cell for load sharing. Another example is to determine the target cell for load sharing by comprehensively considering factors such as the load to be transferred.

[0091] Taking the case where the first network device determines that a cell switching is required and requests to activate the first cell as an example, optionally, before the first network device sends the first request information to the second network device through the core network device, it may also include: the first network device determines that the target cell for the terminal device to switch is the first cell; the first network device determines that the first cell is in a deactivated state.

[0092] The first network device may store the information of the neighboring cells in the first message, and then determine the target cell to be switched by the terminal device according to the information of the neighboring cells. Specifically, the target cell may be determined according to the load of the neighboring cells and / or other information, such as determining the cell with low load under the second network device as the target cell to be switched.

[0093] Further, if Figure 3b As shown, the embodiment of the present application is Figure 3a Based on the illustrated cell management method, it is shown that before S304, "S303: the first network device determines that the first cell is in a deactivated state" is executed. This means that when the first request information is used to request activation of the first cell, step S303 is executed before S304.

[0094] Optionally, the first network device may determine that the first cell is in a deactivated state by referring to the following method (1) or method (2).

[0095] Method (1): The first network device may determine that the first cell is in a deactivated state through the following steps A1 to A3.

[0096] A1, the first network device sends a status request message to the second network device through the core network device, where the status request message is used to request a cell in a deactivated state under the second network device.

[0097] Specifically, the first network device sends the status request information to the core network device, and the core network device then sends the received status request information to the second network device.

[0098] A2, the first network device receives status indication information from the second network device through the core network device, where the status indication information is used to indicate a cell in a deactivated state under the second network device.

[0099] Specifically, the second network device sends the status indication information to the core network device, and the core network device then sends the received status indication information to the first network device.

[0100] A3. If the cell indicated by the status indication information includes the first cell, the first network device determines that the first cell is in the deactivated state.

[0101] In the embodiments of the present application, when the first network device determines that the terminal device needs to hand over to the first cell under the second network device, it first sends a first request message to the second network device through the core network device to request to activate the first cell in the deactivated state under it, which can avoid the handover failure caused by direct handover, thereby improving the cell management effect. In addition, it should be noted that the embodiments of the present application do not limit the deactivated cells under the second network device to be known only through the status request message / status indication information. For example, the foregoing status request message can also be used to request the status of neighboring cells belonging to the second network device. Correspondingly, the foregoing status indication information can also be used to indicate the status of neighboring cells belonging to the second network device; the first network device can determine whether the first cell is in the deactivated state based on the received status indication information.

[0102] Method (2): The first network device can also determine that the first cell is in the deactivated state through the following steps B1 and B2.

[0103] B1. The first network device sends a second request message to the second network device through the core network device, and the second request message is used to request a handover to the first cell.

[0104] Specifically, the first network device sends the second request message to the core network device, and the core network device then sends the received second request message to the second network device.

[0105] B2. The first network device receives, through the core network device, information from the second network device indicating that the first cell is in the deactivated state.

[0106] Specifically, the second network device sends the information indicating that the first cell is in the deactivated state to the core network device, and the core network device then sends the received information indicating that the first cell is in the deactivated state to the first network device.

[0107] Further, optionally, the second network device can also send the information of the first cell to the first network device through the core network device, and then the first network device determines whether to hand over the terminal device to the first cell according to the received information of the first cell.

[0108] Specifically, the second network device may send a HANDOVER FAILURE message to the core network device. The HANDOVER FAILURE message carries information indicating that the first cell is in a deactivated state and / or information about the first cell. The core network device sends a HANDOVER PREARATION FAILURE message to the first network device. The HANDOVER PREARATION FAILURE message carries information indicating that the first cell is in a deactivated state and / or information about the first cell.

[0109] In the embodiments of the present application, when the second network device receives a handover request for the first cell, if the first cell is in a deactivated state, the second network device sends, through the core network device, information indicating that the first cell is in a deactivated state to the first network device, so that the first network device can obtain the information about the deactivated state of the first cell and / or information about the first cell, and avoid switching the terminal device to the first cell; or when the first network device determines to switch the terminal device and adjust / transfer the load to the first cell, the first network device initiates a first request message for requesting to activate the first cell, so as to avoid handover failure.

[0110] In an alternative embodiment, the first request message is used to request to activate the first cell and perform a handover to the first cell. Optionally, the first request message includes an activation request and a handover request corresponding to the first cell.

[0111] In an alternative embodiment, the first network device may also perform energy-saving processing on the neighboring cells in the second network device that are in an active state, such as load balancing, cell handover, closing / deactivating cells that do not need to be turned on, etc. Then the first request message is used to request a handover to the first cell or the first request message is used to request to close the first cell, and the first cell is in an active state.

[0112] Optionally, the first network device may, according to the method in the above embodiments, send a status request message for requesting the status of the neighboring cells belonging to the second network device, and receive a status indication message for indicating the status of the neighboring cells belonging to the second network device. The first network device determines the neighboring cells in the second network device that are in an active state according to the status indication message.

[0113] Optionally, before the first network device sends the first request message to the second network device through the core network device, the foregoing method further includes: the first network device determines a target cell to be closed in the second network device according to the obtained information about the neighboring cells, or the first network device determines that the target cell for handover is the first cell in the second network device according to the first message.

[0114] Among them, the first network device determines the target cell to be deactivated under the second network device according to the obtained information of neighboring cells, which can be implemented in the following manner: The first network device determines the cell to be deactivated according to the information of neighboring cells included in the first message or the information of neighboring cells under the second access network device obtained through the core network device, and / or the information of the serving cell of the terminal device. For example, the neighboring cell with more beams, the neighboring cell with a larger bandwidth, or the neighboring cell with less load and other cells that can share the load can be preferentially determined as the target cell to be deactivated, that is, the first cell. Another example is that according to actual requirements, if the terminal device reports multiple pieces of information about neighboring cells, different weight coefficients can be set for the multiple pieces of information, and the target cell to be deactivated can be determined through weight scoring. The embodiments of the present application do not limit this.

[0115] The first network device determines that the target cell for handover under the second network device is the first cell under the second network device according to the first message. Specifically, the target cell can be determined according to the load of neighboring cells and / or other information. For example, the cell with low load under the second network device is determined as the target cell for handover, that is, the first cell.

[0116] In an alternative implementation manner, the foregoing method further includes:

[0117] S305, the second network device sends the first indication information to the first network device through the core network device, and the first network device receives the first indication information from the second network device through the core network device.

[0118] Specifically, the second network device sends the first indication information to the core network device, and the core network device then sends the received first indication information to the first network device.

[0119] Among them, the first indication information is a response to the first request information. If the first request information is used to request the activation of the first cell, the second network device activates the first cell and then sends the first indication information, and the first indication information is used to indicate the activation of the first cell; if the first request information is used to request the activation of the first cell and a handover to the first cell, the second network device activates the first cell, determines whether to accept the cell handover, and then sends the first indication information, and the first indication information is used to indicate acceptance or rejection of the handover request corresponding to the first cell; if, when the first cell is in the active state, the first request information is used to request a handover to the first cell, the second network device determines whether to accept the cell handover and then sends the first indication information, and the first indication information is used to indicate acceptance or rejection of the handover request corresponding to the first cell; if, when the first cell is in the active state, the first request information is used to request the deactivation of the first cell, the second network device determines whether to deactivate the cell and then sends the first indication information, and the first indication information is used to indicate deactivation or non-deactivation of the cell.

[0120] Exemplarily, in Figure 3a S305 is illustrated: the first indication information sent by the second network device. In Figure 3b it is illustrated that the first request information sent by the first network device in S304 is specifically an activation request corresponding to the first cell; correspondingly, after receiving the first request information, the second network device activates the first cell, and the first indication information sent by the second network device in S305 is specifically an activation indication corresponding to the first cell.

[0121] As Figure 4 shown, an embodiment of the present application provides another cell management method, and the method includes the following processes.

[0122] S401, the first network device sends a second message to the terminal device, and the second message is used to instruct the terminal device to obtain information of neighboring cells.

[0123] S402, the terminal device obtains information of neighboring cells according to the second message, and the neighboring cells include the first cell under the second network device.

[0124] S403, the terminal device sends a first message to the first network device, and the first message includes the information of the neighboring cells it has obtained; correspondingly, the first network device stores the information of the neighboring cells.

[0125] S404, the first network device sends a third message carrying the first request information to the core network device, and the first request information is used to request to activate the first cell and perform a handover to the first cell.

[0126] S405, the core network device sends a fourth message to the second network device, and the first request information is carried in the fourth message.

[0127] S406, the second network device sends a fifth message carrying the first indication information to the core network device, and the first indication information is used to indicate acceptance or rejection of the handover request corresponding to the first cell.

[0128] S407, the core network device sends a sixth message to the first network device, and the first indication information is carried in the sixth message.

[0129] In an embodiment of the present application, the first network device sends an activation request and a handover request corresponding to the first cell to the second network device through the core network device, avoiding an error in directly requesting a handover when the first cell is in a deactivated state.

[0130] Furthermore, for ease of implementation, an embodiment of the present application takes the handover (HO) process based on the Ng interface as an example to provide yet another cell management method, as Figure 5It shows the process in which the source base station (S-gNB1) initiates a handover to the target base station (T-gNB2) through the core network device (AMF1), specifically including the following steps.

[0131] S501, S-gNB1 receives the measurement report reported by the UE under S-gNB1. This measurement report includes information about neighboring cells of the serving cell of the UE.

[0132] S502, S-gNB1 sends a handover required (HO REQUIRED) message to AMF1. This handover required message is used to indicate the target cell for the UE to hand over among the neighboring cells. Optionally, if it is determined that the target cell is in the deactivated state, the handover required message also carries an activation request for the target cell. As another possible implementation, the handover required message can implicitly indicate the activation request for the target cell. For example, it can be pre-negotiated between network devices and core network devices that when the target cell corresponding to the received handover required message is in the deactivated state, it implies the activation request for the corresponding target cell.

[0133] S503, AMF1 sends a handover request (HO REQUEST) message to T-gNB2. This handover request is used to request the target cell for the UE to hand over among the neighboring cells. Optionally, if it is determined that the target cell is in the deactivated state, the handover request also carries an activation request for the target cell. As another possible implementation, the handover request message can implicitly indicate the activation request for the target cell. For example, it can be pre-negotiated between network devices and core network devices that when the target cell corresponding to the received handover request message is in the deactivated state, it implies the activation request for the corresponding target cell.

[0134] Optionally, after receiving the HO REQUEST, T-gNB2 determines whether to accept the handover request corresponding to the target cell. If so, the subsequent steps S504a, S505a, and S506 are executed:

[0135] S504a, T-gNB2 accepts the HO REQUEST (that is, HO success), and T-gNB2 sends a handover request acknowledgement (HO REQUEST ACK) message to AMF1.

[0136] Optionally, when T-gNB2 accepts the HO REQUEST, it can also implicitly indicate that the target cell has been activated, or implicitly indicate acceptance of the activation request for the target cell.

[0137] S505a, AMF1 sends a handover command (HO COMMAND) message to S-gNB1.

[0138] S506, S-gNB1 sends a connection reconfiguration (RRC connection reconfiguration / RRC reconfiguration) message to the UE to enable the UE to establish a connection to the target cell of the handover.

[0139] Otherwise, perform S504b and S505b:

[0140] S504b, T-gNB2 rejects the HO REQUEST (i.e., HO failure), and T-gNB2 sends a HANDOVER FAILURE message to AMF1.

[0141] Optionally, T-gNB2 may also carry information indicating whether the target cell is active in the HANDOVER FAILURE message.

[0142] S505b, AMF1 sends a HANDOVER PREARATION FAILURE message to S-gNB1.

[0143] Optionally, AMF1 may also send information indicating whether the target cell is active to S-gNB1.

[0144] Based on the same inventive concept, refer to Figure 6 , an embodiment of the present application provides a communication device 600. The communication device 600 can be applied to a first network device. Specifically, the communication device 600 can be the first network device or a device applied to the first network device and capable of supporting the first network device to execute the above cell management method. The communication device 600 includes: a communication module 601, configured to receive a first message from a terminal device, where the first message includes information about a neighboring cell, and the neighboring cell includes a first cell under a second network device; a processing module 602, configured to determine first request information according to the first message, where the first request information is used to request management of the first cell; and the communication module 601 is further configured to send the first request information to the second network device through a core network device.

[0145] In the embodiment of the present application, by means of the terminal device reporting neighboring cell information, there is no need for network devices to exchange cell information, which can be adapted to the scenario of cell management under network devices without a direct interface. For example, if there is no direct interface between the first network device and the second network device, the first network device can manage the cell under the second network device through the core network device, which can improve the effect of cell management.

[0146] In an alternative embodiment, the information of the neighboring cell includes any one or more of the following information: the identifier of the neighboring cell, the bandwidth, the load, the number of beams, the maximum transmission power, or the period of the reference signal.

[0147] In an alternative embodiment, the first request message is used to request to activate the first cell. Correspondingly, the first request message contains activation information, and the activation information indicates one or more of the following information: the activation reason, the load information of the first network device, the load information of the serving cell of the terminal device, or the target load information of the first cell. By carrying the activation information, the second network device can flexibly activate the cell according to the requirements of the first network device, avoiding the waste or insufficiency of resource allocation caused by configuring fixed activation parameters, which helps to improve the network resource utilization rate.

[0148] In an alternative embodiment, the processing module 602 is further configured to: determine that the target cell for the terminal device to switch to is the first cell; determine that the first cell is in the deactivated state. Correspondingly, when the first network device determines that the terminal device needs to switch to the first cell under the second network device, it first determines that the first cell is in the deactivated state and sends a first request message to request to activate the first cell, which can avoid the handover failure caused by direct handover, thereby improving the effect of cell management.

[0149] In an alternative embodiment, the communication module 601 is further configured to send a status request message to the second network device through the core network device, where the status request message is used to request the cells in the deactivated state under the second network device; receive a status indication message from the second network device through the core network device, where the status indication message is used to indicate the cells in the deactivated state under the second network device; the processing module is further configured to determine that the first cell is in the deactivated state when the first cell is included in the cells indicated by the status indication message.

[0150] In an alternative embodiment, the first request message is further used to request to switch to the first cell. Correspondingly, the communication module 601 is further configured to: send a second request message to the second network device through the core network device, where the second request message is used to request to switch to the first cell; receive, through the core network device, information from the second network device indicating that the first cell is in the deactivated state.

[0151] In an alternative embodiment, the first request message is used to request to switch to the first cell or the first request message is used to request to close the first cell, and the first cell is in the activated state.

[0152] In an alternative embodiment, the communication module 601 is further configured to send a second message to the terminal device, where the second message is used to instruct the terminal device to obtain the information of the neighboring cell.

[0153] Based on the same concept, as Figure 7 shown, an embodiment of the present application provides another communication device 700. Exemplarily, the communication device 700 may be a chip or a chip system. Optionally, in the embodiment of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.

[0154] The communication device 700 may include at least one processor 710. The communication device 700 may further include at least one memory 720 for storing computer programs, program instructions, and / or data. The memory 720 is coupled to the processor 710.

[0155] The coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units, or modules, which may be electrical, mechanical, or other forms, and is used for information interaction between devices, units, or modules. The processor 710 may cooperate with the memory 720. The memory 720 stores the necessary computer programs, program instructions, and / or data in any of the above embodiments; the processor 710 may execute the computer programs stored in the memory 720 to complete the methods in any of the above embodiments. Optionally, at least one of the at least one memory 720 may be included in the processor 710.

[0156] The communication device 700 may further include a transceiver 730. The communication device 700 may interact with other devices, such as the aforementioned core network device or terminal device, through the transceiver 730. The transceiver 730 may be a circuit, a bus, a transceiver, or any other device that can be used for information interaction.

[0157] In a possible implementation manner, the communication device 700 may be applied to a first network device. Specifically, the communication device 700 may be the first network device, or may be a device that can support the first network device and implement the functions of the first network device in any of the above embodiments. The memory 720 stores the necessary computer programs, program instructions, and / or data for implementing the functions of the first network device in any of the above embodiments. The processor 710 may execute the computer programs stored in the memory 720 to complete the methods executed by the first network device in any of the above embodiments.

[0158] In the embodiment of the present application, the specific connection medium between the transceiver 730, the processor 710, and the memory 720 is not limited. In the embodiment of the present application Figure 7 it is shown that the memory 720, the processor 710, and the transceiver 730 are connected through a bus, and the bus is represented by a thick line in Figure 7 The connection manners between other components are only for illustrative purposes and are not limiting. The bus may be divided into an address bus, a data bus, a control bus, etc. For the sake of convenience of representation, Figure 7It is represented by only one thick line, but it does not mean that there is only one bus or one type of bus.

[0159] In the embodiments of the present application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present application may be directly embodied as being executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.

[0160] In the embodiments of the present application, the memory may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or may also be a volatile memory, such as a random-access memory (RAM). The memory may also be any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory in the embodiments of the present application may also be a circuit or any other device capable of implementing a storage function, for storing computer programs, program instructions, and / or data.

[0161] Based on the above embodiments, refer to Figure 8 , the embodiments of the present application further provide another communication device 800, including: an interface circuit 810 and a processor 820; the interface circuit 810 is used to receive code instructions and transmit them to the processor; the processor 820 is used to run the code instructions to execute the method executed by the communication device in any of the above embodiments.

[0162] Based on the above embodiments, the embodiments of the present application further provide a computer-readable storage medium, which stores instructions that, when executed, cause the method executed by the communication device in any of the above embodiments to be implemented. The computer-readable storage medium may include: various media such as a USB flash drive, a mobile hard disk, a read-only memory, a random-access memory, a magnetic disk, or an optical disc that can store program code.

[0163] In order to implement the functions of the above Figures 6 to 7 described communication device, the embodiments of the present application further provide a chip, including a processor, for supporting the communication device to implement the functions involved in the terminal or network device in the above method embodiments. In a possible design, the chip is connected to a memory or the chip includes a memory, and the memory is used to store the necessary program instructions and data of the communication device.

[0164] An embodiment of the present application provides a computer program product including instructions. When it runs on a computer, it causes the computer to execute the above method embodiment.

[0165] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0166] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram, as well as the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0167] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device that implements the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0168] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0169] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the present application without departing from the scope of the embodiments of the present application. Thus, if these modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A cell management method, characterized in that, Including: A first network device receives a first message from a terminal device, where the first message includes information about a neighboring cell. The first network device determines, according to the information about the neighboring cell in the first message, that a target cell for the terminal device to hand over is a first cell under a second network device included in the neighboring cell. The first network device determines that the first cell is in a deactivated state. The first network device sends first request information to the second network device through a core network device according to the first message, where the first request information is used to request activation of the first cell.

2. The method according to claim 1, characterized in that, The information about the neighboring cell includes any one or more of the following information: an identifier of the neighboring cell, bandwidth, load, number of beams, maximum transmit power, or period of a reference signal.

3. The method according to claim 1, wherein The first request information contains activation information, and the activation information indicates one or more of the following information: activation reason, load information of the first network device, load information of a serving cell of the terminal device, or target load information of the first cell.

4. The method according to any one of claims 1 to 3, characterized in that, The first network device determines that the first cell is in a deactivated state, including: The first network device sends status request information to the second network device through the core network device, where the status request information is used to request a cell in a deactivated state under the second network device. The first network device receives status indication information from the second network device through the core network device, where the status indication information is used to indicate a cell in a deactivated state under the second network device. If the first cell is included in the cells indicated by the status indication information, the first network device determines that the first cell is in a deactivated state.

5. The method according to claim 3, wherein The first request information is further used to request a handover to the first cell.

6. The method according to any one of claims 1-3, characterized in that, The first network device determines that the first cell is in a deactivated state, including: The first network device sends second request information to the second network device through the core network device, where the second request information is used to request a handover to the first cell. The first network device receives information indicating that the first cell is in a deactivated state from the second network device through the core network device.

7. The method according to any one of claims 1 to 3, characterized in that, The method further includes: The first network device sends a second message to the terminal device, where the second message is used to instruct the terminal device to obtain the information about the neighboring cell.

8. A communication device, characterized in that, Including: A communication module, configured to receive a first message from a terminal device, where the first message includes information about a neighboring cell. A processing module, configured to determine, according to the information about the neighboring cell in the first message, that a target cell for the terminal device to hand over is a first cell under a second network device included in the neighboring cell; and determine that the first cell is in a deactivated state. The processing module is further configured to determine first request information according to the first message, where the first request information is used to request activation of the first cell. The communication module is further configured to send the first request information to the second network device through a core network device.

9. The device according to claim 8, characterized in that, The information of the neighboring cell includes any one or more of the following information: the identifier of the neighboring cell, bandwidth, load, number of beams, maximum transmission power, or the period of the reference signal.

10. The device according to claim 8, characterized in that, The first request message contains activation information, and the activation information indicates one or more of the following information: activation reason, load information of the first network device, load information of the serving cell of the terminal device, or target load information of the first cell.

11. The apparatus according to any one of claims 8 - 10, wherein The communication module is further configured to send a status request message to the second network device through the core network device, where the status request message is used to request the cell in the deactivated state under the second network device; and receive a status indication message from the second network device through the core network device, where the status indication message is used to indicate the cell in the deactivated state under the second network device; The processing module is further configured to determine that the first cell is in the deactivated state when the cell indicated by the status indication message includes the first cell.

12. The device according to claim 11, characterized in that, The first request message is further used to request a handover to the first cell.

13. The device according to any one of claims 8-10, characterized in that, The communication module is further configured to: Send a second request message to the second network device through the core network device, where the second request message is used to request a handover to the first cell; Receive, through the core network device, information from the second network device indicating that the first cell is in the deactivated state.

14. The device according to any one of claims 8-10, characterized in that, The communication module is further configured to send a second message to the terminal device, where the second message is used to instruct the terminal device to obtain the information of the neighboring cell.

15. A communication device, characterized in that, Comprising: A processor and a memory; The memory is used to store a computer program; The processor is configured to execute the computer program stored in the memory so that the method according to any one of claims 1 to 7 is executed.

16. A communication device, characterized in that, Comprising: A processor and an interface circuit; The interface circuit is configured to receive code instructions and transmit them to the processor; The processor is configured to run the code instructions so that the method according to any one of claims 1 to 7 is executed.

17. A computer-readable storage medium, characterized in that, The computer - readable storage medium stores instructions, and when the instructions are executed, the method according to any one of claims 1 to 7 is implemented.

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