Wireless communication method and apparatus, device, and storage medium

Abstract

A wireless communication method and apparatus, a device, and a storage medium, relating to the technical field of communications. The method comprises: a network device sends first information to a terminal device in a first cell, the first information being used for determining a state that the first cell or a first cell group is about to enter, the first cell group comprising the first cell, and the state being related to whether the cell is deactivated (410). In the method, the network device can flexibly determine, according to requirements, for example, on the basis of network resource usage of the first cell, the state that the first cell or the first cell group is about to enter. When the network resource utilization rate of the first cell is low, it can be determined that the first cell or the first cell group is about to be deactivated, and when the first cell or the first cell group is deactivated, the energy consumption of the network device can be reduced.

Description

Wireless communication method, apparatus, device, and storage medium TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of communication, and in particular, relate to a wireless communication method, apparatus, device and storage medium. BACKGROUND

[0002] With the development of wireless communication technology, the demand for network energy saving (NES) is proposed. Network energy saving is of great significance to environmental sustainability, reducing the impact on the environment (reducing greenhouse gas emissions), and saving operating costs.

[0003] However, how to realize network device energy saving still needs further research.

[0004] SUMMARY

[0005] Embodiments of the present application provide a wireless communication method, apparatus, device and storage medium. The technical solutions provided by the embodiments of the present application are as follows:

[0006] According to an aspect of the embodiments of the present application, a wireless communication method is provided, the method is executed by a terminal device, the terminal device is in a first cell, and the method comprises:

[0007] receiving first information, the first information being used to determine a state that the first cell or a first cell group is about to enter, the first cell group comprising the first cell, and the state being related to whether to close a cell.

[0008] According to an aspect of the embodiments of the present application, a wireless communication method is provided, the method is executed by a network device, and the method comprises:

[0009] sending first information to a terminal device in a first cell, the first information being used to determine a state that the first cell or a first cell group is about to enter, the first cell group comprising the first cell, and the state being related to whether to close a cell.

[0010] According to an aspect of the embodiments of the present application, a wireless communication apparatus is provided, the apparatus comprises a receiving module;

[0011] The receiving module is configured to receive first information, the first information being used to determine a state that a first cell or a first cell group is about to enter, the first cell group comprising the first cell, and the state being related to whether to close a cell.

[0012] According to an aspect of the embodiments of the present application, a wireless communication apparatus is provided, the apparatus comprises a sending module;

[0013] The sending module is configured to send first information to a terminal device in the first cell, the first information being used to determine a state that the first cell or a first cell group is about to enter, the first cell group including the first cell, and the state being related to whether a cell is closed or not.

[0014] According to an aspect of an embodiment of the present application, a communication device is provided, which comprises a processor and a memory, the memory storing a computer program, and the processor executes the computer program to implement the wireless communication method.

[0015] According to an aspect of an embodiment of the present application, a computer readable storage medium is provided, which stores a computer program, and the computer program is used to be executed by a processor to implement the wireless communication method.

[0016] According to an aspect of an embodiment of the present application, a chip is provided, which comprises a programmable logic circuit and / or program instructions, and when the chip is running, is used to implement the wireless communication method.

[0017] According to an aspect of an embodiment of the present application, a computer program product is provided, which comprises computer instructions, the computer instructions being stored in a computer readable storage medium, and a processor reads and executes the computer instructions from the computer readable storage medium to implement the wireless communication method.

[0018] The technical scheme provided by the embodiments of the present application can include the following beneficial effects:

[0019] The network device can flexibly determine the state that the first cell or the first cell group is about to enter according to the demand, such as according to the network resource usage of the first cell. When the network resource utilization rate of the first cell is low, it can be determined that the first cell or the first cell group is about to be closed, and after the first cell or the first cell group is closed, the energy consumption of the network device can be saved. BRIEF DESCRIPTION OF DRAWINGS

[0020] FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application;

[0021] FIG. 2 is a schematic diagram of the architecture of a communication system provided by another embodiment of the present application;

[0022] FIG. 3 is a schematic diagram of the architecture of a communication system provided by another embodiment of the present application;

[0023] FIG. 4 is a flowchart of a wireless communication method provided by an embodiment of the present application;

[0024] FIG. 5 is a schematic diagram of the correspondence between indication information and a cell or a cell group provided by an embodiment of the present application;

[0025] FIG. 6 is a schematic diagram of the first information included in the downlink control information according to an embodiment of the present application;

[0026] FIG. 7 is a schematic diagram of determining the off time of the first cell or the first cell group according to an embodiment of the present application;

[0027] FIG. 8 is a schematic diagram of the first information and the second information included in the downlink control information according to an embodiment of the present application;

[0028] FIG. 9 is a schematic diagram of the first information and the second information included in the downlink control information according to another embodiment of the present application;

[0029] FIG. 10 is a flowchart of the terminal device switching the camped cell according to an embodiment of the present application;

[0030] FIG. 11 is a block diagram of a wireless communication device according to an embodiment of the present application;

[0031] FIG. 12 is a block diagram of a wireless communication device according to another embodiment of the present application;

[0032] FIG. 13 is a schematic diagram of the structure of a communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0033] In order to make the objects, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0034] The network architecture and the service scenario described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. It can be known by those skilled in the art that, with the evolution of the network architecture and the appearance of new service scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0035] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system, New Radio (NR) system, evolved system of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), 5th-Generation (5G) system, 6th-Generation (6G) system or other communication systems, etc.

[0036] Generally, the traditional communication system supports a limited number of connections, which is easy to implement. However, with the development of communication technology, the mobile communication system will not only support the traditional communication, but also support, for example, Device to Device (D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0037] The communication system in the embodiments of the present application can be applied to a carrier aggregation (CA) scenario, can also be applied to a dual connectivity (DC) scenario, and can also be applied to a standalone (SA) network deployment scenario.

[0038] The communication system in the embodiments of the present application can be applied to an unlicensed spectrum, which can also be regarded as a shared spectrum, or can also be applied to a licensed spectrum, which can also be regarded as a non-shared spectrum.

[0039] The communication system scenario includes a non-terrestrial network (NTN) system and a terrestrial network (TN) system. The NTN generally provides communication services to ground users in a satellite communication manner. The NTN system currently includes an NR-NTN and an IoT-NTN system, and can also include other NTN systems in the future.

[0040] For example, FIG. 1 is a schematic diagram of an architecture of a communication system provided by an embodiment of the present application. As shown in FIG. 1, the communication system 100 can include a network device 110, which can be a device communicating with a terminal device 120. The network device 110 can provide communication coverage for a specific geographic area, and can communicate with terminal devices located in the coverage area.

[0041] FIG. 1 exemplarily shows one network device 110 and two terminal devices 120. In some embodiments of the present application, the communication system 100 can include multiple network devices, and each network device can include other numbers of terminal devices within its coverage range, which is not limited in the embodiments of the present application.

[0042] For example, FIG. 2 is a schematic diagram of another architecture of a communication system provided by an embodiment of the present application. Referring to FIG. 2, the communication system can include a terminal device 201 and a satellite 202, and the terminal device 201 and the satellite 202 can communicate wirelessly. The network formed between the terminal device 201 and the satellite 202 can also be referred to as an NTN. In the architecture of the communication system shown in FIG. 2, the satellite 202 can have the function of a base station, and the terminal device 201 and the satellite 202 can directly communicate. Under this system architecture, the satellite 202 can be referred to as a network device. In some embodiments of the present application, the communication system can include multiple satellites 202, and each network satellite 202 can include other numbers of terminal devices within its coverage range, which is not limited in the embodiments of the present application.

[0043] For example, FIG. 3 is a schematic diagram of another architecture of a communication system provided by an embodiment of the present application. Referring to FIG. 3, the communication system includes a terminal device 301, a satellite 302, and a base station 303. The terminal device 301 and the satellite 302 can communicate wirelessly, and the satellite 302 and the base station 303 can communicate. The network formed by the terminal device 301, the satellite 302, and the base station 303 can also be referred to as an NTN. In the architecture of the communication system shown in FIG. 3, the satellite 302 can not have the function of a base station, and communication between the terminal device 301 and the base station 303 needs to be relayed by the satellite 302. In this kind of system architecture, the base station 303 can be referred to as a network device. In some embodiments of the present application, the communication system can include multiple base stations 303, each base station 303 can communicate with one or more satellites 302, and each satellite 302 can include other numbers of terminal devices within its coverage range, which is not limited in the embodiments of the present application.

[0044] In the future evolved communication system such as B5G (Beyond 5G) or 6G, distributed multiple-input multiple-output (Distributed MIMO, also referred to as distributed antenna system) scenarios and / or massive multiple-input multiple-output (Massive MIMO, also referred to as massive antenna matrix system) scenarios can also be included. In some cases, Distributed MIMO and / or Massive MIMO can also support cell-free or UE-centric network deployment scenarios. It should be understood that the above scenarios also apply to TN and / or NTN.

[0045] It can be understood that, with the development of communication technology, the future evolved communication system such as B5G or 6G can support TN or NTN, and can also support base station-centric network deployment scenarios or terminal-centric network deployment scenarios.

[0046] The terminal device mentioned in the embodiments of the present application can refer to a UE (User Equipment), an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device, a user agent or a user device. Alternatively, the terminal device 10 can also be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA (Personal Digital Assistant), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5GS (5th Generation System) or a terminal device in a future evolved PLMN (Public Land Mobile Network), etc. The embodiments of the present application are not limited thereto. For convenience of description, the above-mentioned devices are collectively referred to as terminal devices. In the embodiments of the present application, "terminal device" and "UE" are often used interchangeably, but those skilled in the art can understand that the two can express the same meaning.

[0047] The network device mentioned in the embodiments of the present application can be an access network device, which can be located on the ground or on a satellite. The access network device is a device deployed in the access network to provide wireless communication function for the terminal device. The access network device can include various forms of macro base stations, micro base stations, relay stations, access points, etc. In systems using different wireless access technologies, the names of devices with access network device functions may be different, for example, in a 5G NR system, it is called gNodeB or gNB. With the evolution of communication technology, the name of "access network device" may change. For the convenience of description, in the embodiments of the present application, the above-mentioned devices providing wireless communication function for the terminal device are collectively referred to as access network devices. Alternatively, the communication relationship between the terminal device and the core network device can be established through the access network device.

[0048] The "5G NR system" in the embodiments of the present application can also be referred to as a 5G system or an NR system, but those skilled in the art can understand its meaning. The technical solutions described in the embodiments of the present application can be applicable to the LTE system, the 5G NR system, the subsequent evolution system (such as the 6G system) of the 5G NR system, other communication systems such as the NB-IoT (Narrow Band Internet of Things) system, etc. The present application is not limited thereto.

[0049] In the embodiments of the present application, the network device can serve a cell, and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource, or a spectrum resource) on a carrier used by the cell. The cell can be a cell corresponding to the network device (for example, a base station). The cell can belong to a macro base station or a base station corresponding to a small cell (Small cell). The small cell can include a metro cell, a micro cell, a pico cell, a femto cell, and the like. The small cell has the characteristics of small coverage and low transmit power, and is suitable for providing high-speed data transmission services.

[0050] Before introducing the technical solutions of the present application, some related technical knowledge involved in the present application will be introduced and explained. The following related technologies can be combined with the technical solutions of the embodiments of the present application in any way, and all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0051] 1. Network energy saving

[0052] Network energy saving is of great significance to environmental sustainability, reducing the impact on the environment (reducing greenhouse gas emissions), and saving operating costs. With the gradual popularization of 5G in various industries and geographical areas, network deployment becomes denser, uses more antennas, larger bandwidths, and more frequency bands to support very high data transmission rates to handle more advanced services and applications (such as XR). Considering the environmental impact of 5G, new solutions need to be developed to enhance network energy saving.

[0053] Energy consumption has become a key part of the operational expenditure (OPEX) of operators. According to the report of the Global System Mobile Association (GSMA), the energy cost of mobile networks accounts for about 23% of the total operational cost. Most of the energy consumption comes from the radio access network, more specifically, from the Active Antenna Unit (AAU), with a smaller share of data centers and fiber transmission. The power consumption of a radio access can be divided into two parts: the dynamic part only includes the power consumption when data is being transmitted or received; the static part includes the power consumption necessary for the operation of maintaining the radio access device at all times, including the power consumption when no data is being transmitted or received.

[0054] With the development of communication technology and the evolution of communication systems, energy consumption gradually becomes an important KPI (Key Performance Indicator) of the operation efficiency of communication systems. Therefore, network energy saving technology needs to be considered when designing a 6G communication system.

[0055] 2.5 Initial access in 5G NR system

[0056] In the NR system, the initial access procedure of the terminal device can be completed by detecting the Synchronization Signal / PBCH Block (SSB or SS / PBCH block) on the synchronization raster. The SSB is transmitted through the discovery signal transmission window or the SSB transmission window. The discovery signal transmission window or the SSB transmission window occurs periodically, and the period can be configured by the network device through a higher layer parameter. In the initial access procedure, the terminal device attempts to search for the SSB through the predefined possible time-frequency position of the SSB, and obtains time and frequency synchronization, radio frame timing and cell ID (Identifier) through the detected SSB.

[0057] One of the main functions of the SSB index is to enable the UE to obtain system timing information. In addition to this, the SSB index has another function, which is to indicate the Quasi Co-Location (QCL) relationship between SSBs, or it can also be understood that the SSB index can indicate the beam direction. QCL means that the large-scale parameters experienced by the symbols on one antenna port can be inferred from the symbols on another antenna port. The large-scale parameters can include delay spread, average delay, Doppler spread, Doppler shift, and spatial reception parameters. Specifically, in the 5G NR system, different beams carrying SSBs form an SSB burst set, and different SSB indexes correspond to the time domain position information of different SSBs in the burst set, and also correspond to specific SSB transmission beam information. SSBs with the same SSB index are considered to have a QCL relationship; or in other words, SSBs with the same SSB index experience the same or similar large-scale parameters of the channel. The UE can assume that the network device uses the same beam to transmit these SSBs; SSBs corresponding to different SSB indexes are not considered to have a QCL relationship because they can come from different transmission beams of the network device and experience different channel transmission characteristics.

[0058] After detecting the SSB, the terminal device can determine the configuration of the Type0-PDCCH (Physical Downlink Control Channel) CSS (Common Search Space) set through the MIB (Master Information Block) message in the SSB. The terminal device can receive the scheduling of the network device for the SIB1 (System Information Block 1) message through listening to the Type0-PDCCH CSS set. The MIB message and the SIB1 message both include system configuration information of the serving cell. Further, the terminal device can receive the scheduling of the network device for other system messages except the SIB1 message through listening to the Type0A-PDCCH CSS set, receive the scheduling of the network device for the paging message through listening to the Type2-PDCCH CSS set, and receive the paging message early indication (PEI) information sent by the network device through listening to the Type2A-PDCCH CSS set.

[0059] The terminal device can also obtain the resource configuration of the PRACH (Physical Random Access Channel) transmission opportunity (PRACH Occasion, RO) in the random access process according to the system message SIB1 of the received cell. The RO is a time-frequency resource carrying a random access preamble (Preamble, also known as PRACH). If two-step RACH (Random Access Channel) transmission is supported, the resource configuration in the random access process also includes PUSCH (Physical Uplink Shared Channel) resource configuration, also known as PUSCH transmission opportunity (PUSCH Occasion, PO). Among them, the message A (MsgA) in the two-step RACH includes MsgA PRACH and MsgA PUSCH, the RO is a time-frequency resource for carrying MsgA PRACH, and the PO is a time-frequency resource for carrying MsgA PUSCH.

[0060] The NR system is characterized by supporting downlink multi-beam, and different SSBs are associated with different beams. Before a terminal device initiates random access, the terminal device measures and evaluates the signal quality of a cell and the signal strength of each SSB in the cell. In the case where the SSB signal detection strength exceeds a threshold, after the terminal device determines that an SSB#1 is the strongest SSB, the terminal device determines, according to the mapping relationship between the SSB and the RO, that the PRACH transmission opportunity corresponding to the SSB#1 is an RO#1, and sends a PRACH on the RO#1. If the network device successfully receives the PRACH, the network device can learn the SSB selected by the terminal device based on the resource information of the successfully received PRACH, for example, the network device can determine that the PRACH is associated with the SSB#1 according to the association relationship, and thus can determine the beam information corresponding to subsequent communication according to the SSB#1.

[0061] In addition, the terminal device can also request the network device to send system messages according to the RO resource configured by the network device. The system messages requested by the terminal device to be sent by the network device can be other system messages in addition to SIB1, for example, SIB2, SIB3, SIB4, SIB5, SIB6, SIB7, SIB8, SIB9, SIB10, SIB11, SIB12, SIB13, SIB14, SIB15, SIB16, SIB17, SIB18, SIB19, SIB20, SIB21, etc.

[0062] With the development of communication technology, 6G communication technology has been studied at present. Considering the importance of network energy saving, possible network energy saving schemes need to be considered at the beginning of the design of 6G communication technology. From the perspective of network energy saving, the network device should try to reduce the transmission of "always-on" signals, so as to avoid possible meaningless energy consumption. In the extreme case, for example, when there is no terminal device in the cell that needs to be served, the network device can turn off the entire cell. However, how the network device turns off the entire cell needs further study.

[0063] Please refer to FIG. 4, which shows a flowchart of a wireless communication method provided by an embodiment of the present application. The method can be applied to the network architecture shown in FIGS. 1 to 3. As shown in FIG. 4, the method can include the following step 410:

[0064] Step 410: The network device sends first information to a terminal device in a first cell, the first information being used to determine a state that the first cell or a first cell group is about to enter, the first cell group including the first cell, and the state being related to whether to close the cell.

[0065] Correspondingly, the terminal device receives the first information sent by the network device.

[0066] The first cell group includes a plurality of cells. In some embodiments, the cells included in the first cell group are predefined or configured by the network device. In some embodiments, the cells included in the first cell group are predefined. Illustratively, the neighboring cells can be defined as the first cell group based on the geographical location of the cells. In some embodiments, the cells included in the first cell group are configured by the network device based on a high-level parameter (e.g., a system message) to determine dynamically. Illustratively, the network device can determine the cells included in the first cell group based on the number of terminal devices in the connected state in the cells or the load of the cells or the service priority. Illustratively, the network device can include in the first cell group the cells with less number of terminal devices in the connected state in the cells or lower load of the cells or lower service priority.

[0067] In some embodiments, the state is related to the energy saving of the network device. The state can include an off state and a normal working state. When the cell is in the off state, the unit (network device) turns off most of the hardware, and in this state, the unit does not send any signal / channel, but can keep the receiving ability of a specific wake-up signal in order to quickly reopen when needed. The normal working state can include a basic mode state and an active mode state. In the basic mode state, the cell periodically sends a discovery signal, and all other signals or channels are sent in an on-demand manner. When the cell is in the active mode state, the cell has normal communication functions, including that the cell often sends system information and the like on the signal channel. As can be known from the above, when the cell is in the off state, most of the communication functions are disabled, and the network device puts most of the hardware into a low-power state or off to save network power consumption. It can be understood that when the terminal device is in the idle state or the inactive state, the cell can be in the basic mode state, and when the terminal device is in the connected state, the cell can be in the active mode state.

[0068] In some embodiments, the state that the first cell or the first cell group is about to enter can include being about to be off or being about to be in normal working (also referred to as not being off, which can include the basic mode state and the active mode state). It can be understood that for the plurality of cells included in the first cell group, the state that the first cell group is about to enter can be used to determine the state that the plurality of cells included in the first cell group are about to enter. That is, the state that the first cell group is about to enter is the state that each of the plurality of cells included in the first cell group is about to enter. This method can indicate the state that the plurality of cells are about to enter at the same time, thereby improving the efficiency of the state indication of the plurality of cells.

[0069] In some embodiments, the first information is sent when the first cell satisfies at least one of the following conditions: there is no terminal device in the connected state in the first cell; the number of terminal devices in the connected state in the first cell is less than or equal to a first threshold; the load of the first cell is less than or equal to a second threshold; the service priority of the first cell is less than or equal to a third threshold. The values of the first threshold, the second threshold can be configured by the network device, preconfigured, or standard predefined, or depend on the implementation of the terminal device, which is not limited in the present application.

[0070] In some embodiments, when there is no terminal device in the connected state in the first cell, or the number of terminal devices in the connected state in the first cell is less than or equal to the first threshold, it indicates that the first cell is not active, that is, there is no or only a small number of terminal devices with data transmission needs, and the terminal devices included in the first cell can be in the idle state or the inactive state. In some embodiments, the load of the first cell refers to the utilization of the network resources (such as bandwidth) of the first cell.

[0071] It can be understood that the smaller the number of terminal devices in the connected state in the first cell or the lower the load of the first cell, the lower the utilization of the network resources of the first cell at this time, and the smaller the impact on the communication services of the terminal devices in the first cell when the first cell is closed. In this case, the first information can determine that the first cell or the first cell group is about to be closed.

[0072] In some embodiments, the service priority of the cell refers to a mechanism for classifying and sorting different service types of the cell to determine its processing and transmission priority in network resource management and data transmission process. Different service types of the cell correspond to different priorities. High-priority services can include voice calls, video live streaming, video conferencing and other real-time applications, which have higher requirements for network bandwidth and delay, and are given greater priority to ensure service quality. Low-priority services can include file downloads, emails, web browsing and other non-real-time applications, which have relatively low requirements for delay and bandwidth, and can be preferentially restricted or temporarily interrupted.

[0073] It can be understood that the smaller the service priority of the first cell, the smaller the impact on the communication services of the terminal devices in the cell when the first cell is closed at this time, and in this case, the first information can be used to determine that the state that the first cell or the first cell group is about to enter is the closing state.

[0074] In some embodiments, when the number of terminal devices in the connected state of the first cell is small, or the load of the first cell is low, but the service priority of the first cell is high at this time, closing the first cell at this time will affect the normal operation and quality of service of high-priority services, such as real-time voice calls and video conferences, which can cause the call to be interrupted or the video signal to be poor. In order to ensure the continuity of these key services, the network device can choose to keep the first cell in a normal working state. In this case, the first information is used to determine that the state that the first cell or the first cell group is about to enter is the normal working state.

[0075] In some embodiments, when the service priority of the first cell is small, but the number of terminal devices in the connected state of the first cell is large, or the load of the first cell is high at this time, closing the first cell at this time will affect the network experience of a large number of low-priority service users. Therefore, in this case, although the service priority is low, due to the large number of terminal devices in the connected state, the network device can choose to keep the first cell in a normal working state. In this case, the first information can be used to determine that the state that the first cell or the first cell group is about to enter is the normal working state.

[0076] In some embodiments, for the state that the first cell group is about to enter, it can be determined based on the average of the number of terminal devices in the connected state of each cell included in the first cell group, or the average of the load of the cell, or the average of the service priority of the cell. For example, when the average of the number of terminal devices in the connected state of the first cell group is smaller, or the average of the load of the cell is lower, or the average of the service priority of the first cell group is smaller, the first information can determine that the first cell group is about to be closed.

[0077] In some embodiments, the terminal device is in any one of the following states: idle state, inactive state, connected state. In some embodiments, when the terminal device is in the idle state and the inactive state, after the first cell is closed, the terminal device can be switched to reside in other cells, such as listening to the paging message of other cells, to ensure that important network notifications can be received in time. In some embodiments, when the terminal device is in the connected state, after the first cell is closed, the terminal device can access other cells.

[0078] In some embodiments, the first information is transmitted through resources in the first cell, or the first information is not transmitted through resources in the first cell. Exemplarily, the first cell can be a primary cell of the terminal device, and the second cell can be a secondary cell of the terminal device. The first information can be transmitted through resources in the first cell, and / or the first information can be transmitted through resources in the second cell. In some embodiments, the network device that transmits the first information can be a device in the first cell, or the network device that transmits the first information can not be a device in the first cell. Exemplarily, the network device 1 provides services of the first cell, the network device 2 provides services of the second cell, the network device 1 transmits the first information through resources in the first cell, and / or the network device 2 transmits the first information through resources in the second cell.

[0079] In summary, the technical scheme provided by the embodiments of the present application can enable the network device to flexibly determine the state that the first cell or the first cell group is about to enter according to the demand, such as the network resource usage of the first cell. When the network resource utilization rate of the first cell is low, it can be determined that the first cell or the first cell group is about to be closed, and after the first cell or the first cell group is closed, the energy consumption of the network device can be saved.

[0080] The transmission mode of the first information in the first channel is introduced below.

[0081] In some embodiments, the first information is carried in the first channel, the first channel includes a control channel and / or a shared channel, the control channel is used to carry control information, and the shared channel is used to carry data information. In some embodiments, the control channel is used to realize rapid transmission of small data amount information, and the shared channel is used to realize transmission of large data amount information. In some embodiments, when the first information determines that the first cell or the first cell group is about to be closed, the first information can be preferentially carried in the control channel. This method can ensure that the terminal device receives the information that the first cell or the first cell group is about to be closed more quickly through the control channel, because the state of the first cell or the first cell group is determined to change. In some embodiments, when the first information determines that the state that the first cell or the first cell group is about to enter is a normal working state, the first information can be preferentially carried in the shared channel, so as to reduce the burden of the control channel.

[0082] In some embodiments, the control channel comprises at least one of: a first control channel scheduling a paging message transmission; a second control channel scheduling a system message transmission; a third control channel indicating whether to monitor a paging message. In some embodiments, the scheduling a paging message transmission refers to a control channel used for sending a paging message to a terminal device. The paging message can be used to inform the terminal device of an existing call, information or status update, etc. The scheduling a system message transmission refers to a control channel used for transmitting a system-level control message. The system-level control message can include network configuration, broadcast information, system state change, etc. The indication of whether to monitor a paging message is used to indicate whether the terminal device needs to monitor a paging message.

[0083] In some embodiments, the shared channel comprises at least one of: a first shared channel carrying a paging message; a second shared channel carrying a system message. The first shared channel carrying a paging message refers to a common channel used for transmitting a paging message. The second shared channel carrying a system message refers to a common channel used for transmitting a system-level control message. In the above method, the network device can flexibly select a channel to transmit the first information according to the occupation of the transmission resources of each of the plurality of channels.

[0084] In some embodiments, the information carried by the first channel comprises one or more indication information, each indication information being used to indicate an upcoming state of a cell or a cell group, and the first information is one indication information used to indicate an upcoming state of the first cell or the first cell group. In some embodiments, the indication information and the cell or the cell group can have a one-to-one correspondence, i.e., one indication information is used to indicate an upcoming state of one cell or cell group, and different indication information is used to indicate an upcoming state of different cells or cell groups. In this way, the upcoming state information of multiple cells or cell groups can be determined through multiple indication information.

[0085] In some embodiments, the correspondence between the first information and the first cell or the first cell group is predefined or configured by the network device. That is, the correspondence between the indication information and the cell or the cell group is predefined or configured by the network device. Through the predefined manner, the correspondence between the indication information and the cell or the cell group can be fixed. Through the network device configuration, the dynamic configuration can be realized through a high-level parameter, e.g., a system message. Exemplarily, as shown in FIG. 5, the control information can comprise indication information 0 and indication information 1, the bit x included in the indication information 0 can be used to indicate an upcoming state (i.e., whether to be closed soon) of cell 0 or cell group 0, and the bit y included in the indication information 1 can be used to indicate an upcoming state of cell 1 or cell group 1.

[0086] In this way, on the one hand, the correspondence between the indication information and the cell or cell group can be flexibly determined. On the other hand, through the explicit correspondence, the network device can ensure the accurate matching between the indication information and the cell or cell group thereof.

[0087] In some embodiments, the starting bit position corresponding to the first information is predefined or configured by the network device. The starting bit position corresponding to the first information refers to the starting bit position of the first information in the first channel (such as the control channel). As shown in FIG. 5, the starting bit position corresponding to the indication information 0 in the control information is configured by the network device through a high-level parameter such as a system message, and the starting bit position corresponding to the indication information 1 in the control information is configured by the network device through a high-level parameter such as a system message.

[0088] In some embodiments, in a case where the first information indicates a first value, the first information is used to determine that the first cell or the first cell group is about to be closed; and / or in a case where the first information indicates a second value, the first information is used to determine that the first cell or the first cell group is not closed; wherein the first value and the second value are different. Exemplarily, the first information includes 1 bit, when the bit indicates bit 1, it indicates that the first cell or the first cell group is about to be closed; when the bit indicates bit 0, it indicates that the first cell or the first cell group is not closed (i.e., normally working). Exemplarily, the first indication information includes 1 bit, when the bit indicates bit 0, it indicates that the first cell or the first cell group is about to be closed; when the bit indicates bit 1, it indicates that the first cell or the first cell group is not closed. It can be understood that when the first information is used to indicate the state that the first cell group is about to enter, it indicates that all cells in the first cell group are about to be closed or normally work.

[0089] In some embodiments, in a case where the first information indicates a first value, the first information is used to determine that the first cell or the first cell group is about to be closed; and / or in a case where the first information indicates a second value, the first information is used to determine that the first cell or the first cell group is about to enter a basic mode state; and / or in a case where the first information indicates a third value, the first information is used to determine that the first cell or the first cell group is about to enter an active mode state; wherein the first value, the second value and the third value are different. Exemplarily, the first information includes 2 bits, when the 2 bits indicate bit 00, it indicates that the first cell or the first cell group is about to be closed; when the 2 bits indicate bit 01, it indicates that the first cell or the first cell group is about to enter a basic mode state; when the 2 bits indicate bit 10, it indicates that the first cell or the first cell group is about to enter an active mode state. When the 2 bits indicate bit 11, it can indicate a reserved state or indicate other information.

[0090] In some embodiments, in the case that the first information is used to determine the state of the first cell group to be entered, the first information comprises one or more sub-information, each of which is used to determine the state of one cell contained in the first cell group to be entered. It can be understood that the sub-information is in a one-to-one correspondence with one cell contained in the first cell group, that is, one sub-information corresponds to one cell (referring to one cell in the first cell group), and different sub-information corresponds to different cells (referring to one cell in the first cell group). In some embodiments, the number of bits corresponding to the first information is determined based on the number of cells contained in the first cell group. Each bit corresponds to one cell in the first cell group. Exemplarily, as shown in FIG. 6, the first cell group can include 3 cells (for example, cell 0, cell 1, and cell 2), and the first information corresponds to 3 bits (for example, x0, x1, and x2), one bit corresponding to one cell (for example, x0 is used to indicate whether cell 0 is about to be closed, x1 is used to indicate whether cell 1 is about to be closed, and x2 is used to indicate whether cell 2 is about to be closed). The above method can accurately indicate the state information of each cell contained in the first cell group by setting sub-information for each cell in the first cell group.

[0091] The behavior of the network device after sending the first information is introduced below.

[0092] In some embodiments, according to the first information, it is determined that the first cell is closed after a first time length. In some embodiments, before the first time length, the first cell can be closed according to the needs of the network device. By setting the first time length, the first cell is prevented from being closed by mistake.

[0093] In some embodiments, in the case that the first information is used to determine that the first cell is about to be closed, the network device sends third information within the first time length, the third information being used to determine that the first cell is not closed (that is, the third information is used to determine that the first cell is normally working). Correspondingly, the terminal device receives the third information sent by the network device. In some embodiments, if the terminal device receives the third information within the first time length, it is determined that the first cell is not closed (that is, it is determined that the first cell is normally working). In some embodiments, within the first time length, when the network device monitors that the network environment changes, such as a sharp increase in terminal devices in the connected state in the first cell or a sharp increase in the load of the first cell, the network device sends the third information to the terminal device to cancel the closing of the first cell. This method can adapt to changes in the network environment and help prevent the first cell from being closed by mistake.

[0094] In some embodiments, in the case that the first cell is determined to be closed according to the first information, if the terminal device does not receive the third information (which is used to determine that the first cell is not closed) within the first time length, it is determined that the first cell is closed after the first time length.

[0095] In some embodiments, in the case that the first information is used to determine that the first cell is about to be closed, the network device sends third information within the first time length, the third information being used to determine that the first cell is closed or normally working. Correspondingly, the terminal device receives the third information sent by the network device. Illustratively, the terminal device receives the third information within the first time length, and when the third information is used to indicate that the first cell is closed, the terminal device determines, according to the third information, that the first cell is closed after the first time length; when the third information is used to indicate that the first cell is normally working, the terminal device determines, according to the third information, that the first cell is not closed after the first time length. Illustratively, if the terminal device does not receive the third information within the first time length, the terminal device can also determine that the first cell is not closed after the first time length. That is, after receiving the first information indicating that the first cell is about to be closed, the terminal device still needs to receive the third information indicating that the first cell is closed again, and through at least two confirmations, the terminal device can determine that the first cell is closed. This method can adapt to changes in network environment, and helps to prevent the first cell from being closed by mistake.

[0096] In some embodiments, in the case that the terminal device receives the first information and determines that the first cell is about to be closed, if the terminal device does not receive the first information used to determine that the first cell is normally working within the first time length, the terminal device can determine that the first cell is closed after the first time length.

[0097] In some embodiments, in the case that the first information is used to determine that the first cell is about to be closed, the network device sends the first information again within the first time length, and the first information sent again is used to determine that the first cell is closed or normally working. Correspondingly, the terminal device receives the first information sent again by the network device. Illustratively, the terminal device receives the first information within the first time length, and when the first information is used to indicate that the first cell is closed, the terminal device determines, according to the first information, that the first cell is closed after the first time length; when the first information is used to indicate that the first cell is normally working, the terminal device determines, according to the first information, that the first cell is not closed after the first time length. Illustratively, if the terminal device does not receive the first information within the first time length, the terminal device can also determine that the first cell is not closed after the first time length. That is, after receiving the first information indicating that the first cell is about to be closed, the terminal device still needs to receive the first information indicating that the first cell is closed again, and through at least two confirmations of the first information, the terminal device can determine that the first cell is closed. This method can adapt to changes in network environment, and helps to prevent the first cell from being closed by mistake.

[0098] In some embodiments, the start of the first time length is determined based on a time unit of receiving the first information. In some embodiments, the first information is used to determine that the first cell is about to be closed. The time unit can be a time slot, a symbol, a frame, a subframe, etc. The time unit includes a start position and an end position. This method, which determines the start of the first time length based on the time unit of receiving the first information, can effectively avoid errors caused by communication delay.

[0099] In some embodiments, the first information is used to determine that the first cell is about to be closed. The start of the first time length is the start position of the time unit of receiving the first information; or, the start of the first time length is the end position of the time unit of receiving the first information; or, the start of the first time length is the first time unit after the time unit of receiving the first information and a second time length. The first time length and the second time length can be predefined or configured by the network device.

[0100] For example, the time unit can be a time slot, and the start of the first time length can be the start position of the time slot of receiving the first information. The start of the first time length can also be the end position of the time slot of receiving the first information. The start of the first time length can also be the first time slot after the time slot of receiving the first information and a second time length. For example, the start of the first time length can also be the start position of the first time slot after the time slot of receiving the first information and a second time length. As shown in FIG. 7, the second time length can be 3 milliseconds. The start of the first time length is the start position of the first time slot after the time slot of receiving the first information and 3 milliseconds, the length of the first time length is 100 milliseconds, and the first cell is closed at the end position of the first time length. The above method can flexibly set the start of the first time length.

[0101] The behavior of the terminal device after receiving the first information is described below.

[0102] In some embodiments, after receiving the first information, the first information determines that the first cell or the first cell group is about to be closed. Before the third time length, the first cell can be requested to be closed according to the needs of the terminal device. This method allows the terminal device to actively initiate a request to the network device when facing the risk of closing the first cell, so as to meet the needs of the terminal device to camp on or access the first cell.

[0103] In some embodiments, in a case where it is determined according to the first information that the first cell is about to be closed, the terminal device sends, to the network device, request information within a third time duration through the first cell or another cell different from the first cell, the request information being used to request that the first cell not be closed. Accordingly, the network device receives the request information sent by the terminal device. In some embodiments, within the third time duration, the terminal device initiates a random access procedure or sends an uplink channel or signal to the network device through the first cell, which is used to request that the network device cancel the closing of the first cell. This method can meet the needs of the terminal device to access or camp on the first cell.

[0104] In some embodiments, the start of the third time duration is determined based on a time unit in which the first information is received. This method can effectively avoid errors caused by communication delays by determining the start of the third time duration based on the time unit in which the first information is received.

[0105] In some embodiments, the start of the third time duration is the start of the time unit in which the first information is received, or the end of the time unit in which the first information is received, or the first time unit after the second time duration from the time unit in which the first information is received. In some embodiments, the third time duration can be predefined or configured by the network device. In some embodiments, the length of the third time duration can be the same as the length of the first time duration, or the start of the third time duration can be the same as the start of the first time duration, or the third time duration can be the same as the first time duration, or the end of the third time duration can be earlier than the end of the first time duration. The above method can flexibly set the start of the third time duration.

[0106] In some embodiments, the network device sends, to the terminal device, response information corresponding to the request information, the response information being used to determine whether to close the first cell. Accordingly, the terminal device receives the response information corresponding to the request information sent by the network device. Optionally, the response information includes the first information, where the first information is used to determine that the first cell is about to be closed or is normally working. Optionally, the response information includes third information, where the third information is used to determine that the first cell is canceled from being closed (i.e., the third information is used to determine that the first cell is normally working), or the third information is used to determine that the first cell is closed or is normally working. The above method can enable the network device to process the request according to the network state and resource allocation after receiving the request information sent by the terminal device, and finally determine whether to close the first cell.

[0107] In some embodiments, the terminal device determines to close the first cell without receiving the response information corresponding to the request information sent by the network device.

[0108] In some embodiments, the terminal device can also determine that the first cell is working normally without receiving the response information corresponding to the request information sent by the network device. That is, the terminal device needs to receive at least twice information (twice the first information; or once the first information and once the third information) indicating that the first cell is closed, to determine that the first cell is closed. This method can adapt to changes in the network environment, and help to prevent the first cell from being closed by mistake.

[0109] In some embodiments, the response information is received within a fourth time length, and the starting point of the fourth time length is determined based on a time unit of receiving the first information or a time unit of sending the request information. In some embodiments, the starting point of the fourth time length is determined based on a time unit of initiating the random access procedure or sending the uplink channel or signal.

[0110] In some embodiments, the starting point of the fourth time length is the starting position of the time unit of receiving the first information; or the ending position of the time unit of receiving the first information; or the first time unit after the second time length from the time unit of receiving the first information; or the starting position of the time unit of sending the request information; or the ending position of the time unit of sending the request information; or the first time unit after the fifth time length from the time unit of sending the request information. In some embodiments, the fourth time length and the fifth time length can be predefined or configured by the network device. The above method can flexibly set the starting point of the fourth time length.

[0111] The implementation of switching the terminal device to the target cell for camping is introduced below.

[0112] In some embodiments, the network device sends second information to the terminal device in the first cell, and the second information is used to determine the second cell or the second cell group; wherein the second cell or the second cell group corresponds to the first cell, or the second cell or the second cell group is the target cell or the target cell group for the terminal device in the first cell to switch and camp. Correspondingly, the terminal device receives the second information sent by the network device. In some embodiments, the second information is used to provide one or more potential target cells for the terminal device, to ensure that the terminal device can switch to the target cell for camping in time after the first cell is closed.

[0113] In some embodiments, the correspondence between the first cell and the second cell or the second cell group is predefined or configured by the network device. By the predefined manner, the correspondence between the first cell and the second cell or the second cell group can be fixed. By the network device configuration, the correspondence between the first cell and the second cell or the second cell group can be dynamically configured by a high layer parameter, e.g., a system message. This method can flexibly determine the correspondence between the first cell and the second cell or the second cell group, and on the other hand, by the explicit correspondence, the network device can ensure the accurate matching between the first cell and the target cell or the target cell group.

[0114] In some embodiments, the second information is used to indicate the identification information of the second cell or the second cell group. The identification information refers to the unique identifier allocated to the cell or the cell group in the communication system, which is used to distinguish different cells or cell groups. By the identification information, the terminal device can identify the second cell or the second cell group.

[0115] In some embodiments, in the case that the second information indicates the third value, the second information is used to determine the second cell or the second cell group as the target cell or the target cell group; and / or, in the case that the second information indicates the fourth value, the second information is used to determine the second cell or the second cell group not as the target cell or the target cell group; wherein the third value and the fourth value are different. Exemplarily, the second information includes 1 bit, when the bit indicates bit 1, it means to determine the second cell or the second cell group as the target cell or the target cell group; when the bit indicates bit 0, it means to determine the second cell or the second cell group not as the target cell or the target cell group. Exemplarily, the second information includes 1 bit, when the bit indicates bit 0, it means to determine the second cell or the second cell group as the target cell or the target cell group; when the bit indicates bit 1, it means to determine the second cell or the second cell group not as the target cell or the target cell group.

[0116] In some embodiments, the second information comprises one or more second sub-information, each of which is used to determine whether a cell included in the second cell group can be a target cell. It can be understood that the second sub-information is in a one-to-one correspondence with a cell included in the second cell group, that is, one second sub-information corresponds to one cell (referring to a cell in the second cell group), and different second sub-information corresponds to different cells (referring to a cell in the second cell group). In some embodiments, the number of bits corresponding to the second information is determined based on the number of cells included in the second cell group. Each bit corresponds to a cell in the second cell group. For example, as shown in FIG. 8, the second cell group can include 5 cells (for example, cell 0, cell 1, cell 2, cell 3, cell 4), and the first information corresponds to 5 bits (for example, m0, m1, m2, m3, m4), one bit corresponds to one cell (for example, m0 is used to indicate whether cell 0 can be a target cell, m1 is used to indicate whether cell 1 can be a target cell, m2 is used to indicate whether cell 2 can be a target cell, m3 is used to indicate whether cell 3 can be a target cell, and m4 is used to indicate whether cell 4 can be a target cell). The above method can accurately indicate whether each cell included in the second cell group can be a target cell by setting second sub-information for each cell in the second cell group.

[0117] In some embodiments, the first information and the second information are carried in the same channel, or the first information and the second information are carried in different channels. Optionally, the second information is control information, or the second information is information in the control information, or the second information is carried in a control channel. Optionally, the second information is carried in a first control channel, or the second information is carried in a second control channel, or the second information is carried in a third control channel. Optionally, the second information is MAC CE signaling, or the second information is carried in a shared channel. Optionally, the second information is carried in a first shared channel, or the second information is carried in a second shared channel. Optionally, the first information and the second information are carried in the same control information, or the first information and the second information are carried in the same control channel. Optionally, the first information and the second information are carried in the same shared channel.

[0118] In some embodiments, in the case that the first information and the second information are carried in the same channel, the ending bit position corresponding to the first information and the starting bit position corresponding to the second information are two continuous bit positions. For example, as shown in FIG. 8 and FIG. 9, the first information and the second information can be included in the downlink control information, the first information is used to indicate whether the first cell or the first cell group is about to be closed, and the second information is used to indicate whether the cells in the second cell group can be the target cells of the terminal device switching and camping cells in the first cell. Wherein, the starting bit position corresponding to the first information in the control information is configured by the network device through a high layer parameter, for example, a system message, and the ending bit position corresponding to the first information is continuous with the starting bit position corresponding to the second information.

[0119] In some embodiments, in the case that the first information and the second information are carried in the same channel, the starting bit position corresponding to the second information is predefined or configured by the network device. As shown in FIG. 9, the first information and the second information can be included in the downlink control information, the first information is used to indicate whether the first cell or the first cell group is about to be closed, and the second information is used to indicate whether the cells in the second cell group can be the target cells of the terminal device switching and camping cells in the first cell. Wherein, the starting bit position corresponding to the first information in the control information is configured by the network device through a high layer parameter, for example, a system message, and the starting bit position corresponding to the second information in the control information can be configured by the network device through a high layer parameter, for example, a system message.

[0120] The specific implementation of the terminal device switching and camping cells is introduced as follows.

[0121] As shown in FIG. 10, step 1: the network device sends the first information to the terminal device in the first cell, the first information is used to determine the state of the first cell or the first cell group which is about to enter, the first cell group includes the first cell, and the state is related to whether the cell is closed. Correspondingly, the terminal device receives the first information sent by the network device.

[0122] Step 2: when the first information is used to determine that the first cell or the first cell group is about to be closed, the network device sends the second information to the terminal device in the first cell, the second information is used to determine the second cell or the second cell group; wherein, the second cell or the second cell group corresponds to the first cell, or the second cell or the second cell group is the target cell or the target cell group of the terminal device switching and camping cells in the first cell. Correspondingly, the terminal device receives the second information sent by the network device. The terminal device determines the target cell based on the second information and camps in the target cell.

[0123] In some embodiments, before step 2, the method further comprises: the network device sending first information or third information in a first time period, the first information or the third information being used to determine whether the first cell is closed or normally working. Accordingly, the terminal device receives the first information or the third information sent by the network device.

[0124] In some embodiments, before step 2, the method further comprises: step A, the terminal device sending request information to the network device through the first cell or another cell different from the first cell in a third time period, the request information being used to request not to close the first cell. Accordingly, the network device receives the request information sent by the terminal device. Step B, the network device sending response information corresponding to the request information to the terminal device, the response information being used to determine whether to close the first cell. Accordingly, the terminal device receives the response information corresponding to the request information sent by the network device.

[0125] For details about the above embodiments, please refer to the above description.

[0126] The above embodiments only introduce and illustrate the technical solutions provided by the present application from the perspective of the interaction between the terminal device and the network device. The steps performed by the terminal device described above can be implemented alone to become a wireless communication method on the terminal device side. The steps performed by the network device described above can be implemented alone to become a wireless communication method on the network device side.

[0127] The following is a device embodiment of the present application, which can be used to execute the method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

[0128] Please refer to FIG. 11, which shows a block diagram of a wireless communication device according to an embodiment of the present application. The device has the function of implementing the above wireless communication method, which can be implemented by hardware or by executing corresponding software by hardware. The device can be the terminal device introduced above or can be arranged in the terminal device. As shown in FIG. 11, the device 1100 can include a receiving module 1110.

[0129] The receiving module 1110 is configured to receive first information, the first information being used to determine a state that the first cell or a first cell group is about to enter, the first cell group including the first cell, and the state being related to whether to close a cell.

[0130] In some embodiments, the first information is carried in a first channel, the first channel including a control channel and / or a shared channel, the control channel being used to carry control information, and the shared channel being used to carry data information.

[0131] In some embodiments, the control channel comprises at least one of: a first control channel scheduling a paging message transmission; a second control channel scheduling a system message transmission; a third control channel indicating whether to monitor for a paging message.

[0132] In some embodiments, the shared channel comprises at least one of: a first shared channel carrying a paging message; a second shared channel carrying a system message.

[0133] In some embodiments, the first channel carries one or more indication information, each indication information indicating a state that a cell or a cell group is going to enter, and the first information is one indication information indicating a state that the first cell or the first cell group is going to enter.

[0134] In some embodiments, in a case where the first information indicates a first value, the first information is used to determine that the first cell or the first cell group is going to be closed; and / or, in a case where the first information indicates a second value, the first information is used to determine that the first cell or the first cell group is not going to be closed; wherein the first value and the second value are different.

[0135] In some embodiments, in a case where the first information is used to determine a state that the first cell group is going to enter, the first information comprises one or more sub-information, each sub-information being used to determine a state that a cell comprised in the first cell group is going to enter.

[0136] In some embodiments, a correspondence between the first information and the first cell or the first cell group is predefined or configured by the network device.

[0137] In some embodiments, a cell comprised in the first cell group is predefined or configured by the network device.

[0138] In some embodiments, a starting bit position corresponding to the first information is predefined or configured by the network device.

[0139] In some embodiments, the apparatus 1100 further comprises a processing module (not shown in FIG. 11).

[0140] The processing module is configured to determine, according to the first information, that the first cell is closed after a first time duration.

[0141] In some embodiments, the processing module is configured to, in a case where it is determined according to the first information that the first cell is about to be closed, determine that the first cell is closed after the first time period if the terminal device does not receive third information within the first time period, wherein the third information is used to determine that the first cell is not closed, or the third information is used to determine that the first cell is closed or normally operating; or, in a case where it is determined according to the first information that the first cell is about to be closed, determine that the first cell is closed after the first time period if the terminal device receives the first information again within the first time period, and the received first information is used to determine that the first cell is closed; or, in a case where it is determined according to the first information that the first cell is about to be closed, determine that the first cell is closed after the first time period if the terminal device receives the third information within the first time period, and the received third information is used to determine that the first cell is closed.

[0142] In some embodiments, the start of the first time period is determined based on a time unit in which the first information is received.

[0143] In some embodiments, the start of the first time period is the start of the time unit in which the first information is received; or, the start of the first time period is the end of the time unit in which the first information is received; or, the start of the first time period is the first time unit after the time unit in which the first information is received and a second time period elapses.

[0144] In some embodiments, the apparatus 1100 further includes a sending module (not shown in FIG. 11).

[0145] The sending module is configured to, in a case where it is determined according to the first information that the first cell is about to be closed, send, within a third time period, request information to the network device through the first cell or another cell different from the first cell, wherein the request information is used to request that the first cell is not closed.

[0146] In some embodiments, the start of the third time period is determined based on a time unit in which the first information is received.

[0147] In some embodiments, the start of the third time period is the start of the time unit in which the first information is received; or, the start of the third time period is the end of the time unit in which the first information is received; or, the start of the third time period is the first time unit after the time unit in which the first information is received and a second time period elapses.

[0148] In some embodiments, the receiving module 1110 is configured to receive response information corresponding to the request information sent by the network device, the response information being used to determine whether to close the first cell; or, in the case where the response information corresponding to the request information sent by the network device is not received, determine to close the first cell.

[0149] In some embodiments, the response information is received within a fourth time length, a starting point of the fourth time length being determined based on a time unit at which the first information is received or a time unit at which the request information is sent.

[0150] In some embodiments, the starting point of the fourth time length is a starting position of the time unit at which the first information is received; or, the starting point of the fourth time length is an ending position of the time unit at which the first information is received; or, the starting point of the fourth time length is a first time unit after the second time length from the time unit at which the first information is received; or, the starting point of the fourth time length is a starting position of the time unit at which the request information is sent; or, the starting point of the fourth time length is an ending position of the time unit at which the request information is sent; or, the starting point of the fourth time length is a first time unit after the fifth time length from the time unit at which the request information is sent.

[0151] In some embodiments, the sending module is configured to send second information to a terminal device in the first cell, the second information being used to determine a second cell or a second cell group; wherein the second cell or the second cell group corresponds to the first cell, or the second cell or the second cell group is a target cell or a target cell group for the terminal device in the first cell to switch and camp on.

[0152] In some embodiments, the second information is used to indicate identification information of the second cell or the second cell group.

[0153] In some embodiments, in the case where the second information indicates a third value, the second information is used to determine the second cell or the second cell group as the target cell or the target cell group; and / or, in the case where the second information indicates a fourth value, the second information is used to determine that the second cell or the second cell group is not the target cell or the target cell group; wherein the third value and the fourth value are different.

[0154] In some embodiments, the first information and the second information are carried in a same channel, or the first information and the second information are carried in different channels.

[0155] In some embodiments, in the case that the first information and the second information are carried in the same channel, the ending bit position corresponding to the first information and the starting bit position corresponding to the second information are two consecutive bit positions; or the starting bit position corresponding to the second information is predefined or configured by the network device.

[0156] In some embodiments, the correspondence between the first cell and the second cell or the second cell group is predefined or configured by the network device.

[0157] In some embodiments, the first information is transmitted in the case that the first cell satisfies at least one of the following conditions: there is no terminal device in the connected state in the first cell; the number of terminal devices in the connected state in the first cell is less than or equal to a first threshold; the load of the first cell is less than or equal to a second threshold; the service priority of the first cell is less than or equal to a third threshold.

[0158] In some embodiments, the terminal device is in any one of the following states: idle state, inactive state, connected state.

[0159] In some embodiments, the first information is transmitted through resources in the first cell, or the first information is not transmitted through resources in the first cell.

[0160] Please refer to FIG. 12, which shows a block diagram of a wireless communication device provided by another embodiment of the present application. The device has the function of implementing the above wireless communication method, which can be realized by hardware or by executing corresponding software by hardware. The device can be the network device introduced above or can be arranged in the network device. As shown in FIG. 12, the device 1200 can include a sending module 1210.

[0161] The sending module 1210 is configured to send first information to a terminal device in a first cell, the first information being used to determine a state that the first cell or a first cell group is about to enter, the first cell group including the first cell, and the state being related to whether to close a cell.

[0162] In some embodiments, the first information is carried in a first channel, the first channel including a control channel and / or a shared channel, the control channel being used to carry control information, and the shared channel being used to carry data information.

[0163] In some embodiments, the control channel includes at least one of the following: a first control channel scheduling transmission of a paging message; a second control channel scheduling transmission of a system message; a third control channel indicating whether to monitor a paging message.

[0164] In some embodiments, the shared channel comprises at least one of: a first shared channel carrying a paging message; and a second shared channel carrying a system message.

[0165] In some embodiments, the information carried by the first channel comprises one or more indication information, each indication information indicating a state that a cell or a cell group is going to enter, and the first information is one of the one or more indication information indicating a state that the first cell or the first cell group is going to enter.

[0166] In some embodiments, in a case where the first information indicates a first value, the first information is used to determine that the first cell or the first cell group is going to be closed; and / or, in a case where the first information indicates a second value, the first information is used to determine that the first cell or the first cell group is not going to be closed; wherein the first value and the second value are different.

[0167] In some embodiments, in a case where the first information is used to determine the state that the first cell group is going to enter, the first information comprises one or more sub-information, each sub-information being used to determine the state that a cell comprised in the first cell group is going to enter.

[0168] In some embodiments, a correspondence between the first information and the first cell or the first cell group is predefined or configured by the network device.

[0169] In some embodiments, the cells comprised in the first cell group are predefined or configured by the network device.

[0170] In some embodiments, a starting bit position corresponding to the first information is predefined or configured by the network device.

[0171] In some embodiments, the first cell is closed after a first time duration.

[0172] In some embodiments, the sending module 1210 is configured to, in a case where the first information is used to determine that the first cell is going to be closed, send third information within the first time duration, the third information being used to determine that the first cell is cancelled to be closed, or the third information being used to determine that the first cell is closed or normally working; or, in the case where the first information is used to determine that the first cell is going to be closed, send the first information again within the first time duration, the first information sent again being used to determine that the first cell is closed or normally working.

[0173] In some embodiments, a starting point of the first time duration is determined based on a time unit at which the first information is received.

[0174] In some embodiments, the start of the first time length is the start of the time unit in which the first information is received; or the start of the first time length is the end of the time unit in which the first information is received; or the start of the first time length is the first time unit after the time unit in which the first information is received and a second time length.

[0175] In some embodiments, the apparatus 1200 further includes a receiving module (not shown in FIG. 12).

[0176] The receiving module is configured to receive, in a third time length, request information sent by the terminal device to the network device through the first cell or another cell different from the first cell, in a case where the first information is used to determine that the first cell is about to be closed, the request information being used to request that the first cell not be closed.

[0177] In some embodiments, the start of the third time length is determined based on a time unit in which the first information is received.

[0178] In some embodiments, the start of the third time length is the start of the time unit in which the first information is received; or the start of the third time length is the end of the time unit in which the first information is received; or the start of the third time length is the first time unit after the time unit in which the first information is received and a second time length.

[0179] In some embodiments, the sending module 1210 is configured to send, to the terminal device, response information corresponding to the request information, the response information being used to determine whether to close the first cell.

[0180] In some embodiments, the response information is received within a fourth time length, and the start of the fourth time length is determined based on a time unit in which the first information is received or a time unit in which the request information is sent.

[0181] In some embodiments, the start of the fourth time length is the start of the time unit in which the first information is received; or the start of the fourth time length is the end of the time unit in which the first information is received; or the start of the fourth time length is the first time unit after the time unit in which the first information is received and a second time length; or the start of the fourth time length is the start of the time unit in which the request information is sent; or the start of the fourth time length is the end of the time unit in which the request information is sent; or the start of the fourth time length is the first time unit after the time unit in which the request information is sent and a fifth time length.

[0182] In some embodiments, the sending module 1210 is configured to send second information to a terminal device in the first cell, where the second information is used to determine a second cell or a second cell group; and the second cell or the second cell group corresponds to the first cell, or the second cell or the second cell group is a target cell or a target cell group for the terminal device in the first cell to perform cell handover.

[0183] In some embodiments, the second information is used to indicate identification information of the second cell or the second cell group.

[0184] In some embodiments, when the second information indicates a third value, the second information is used to determine the second cell or the second cell group as the target cell or the target cell group; and / or, when the second information indicates a fourth value, the second information is used to determine the second cell or the second cell group as not the target cell or the target cell group; and the third value and the fourth value are different.

[0185] In some embodiments, the first information and the second information are carried in a same channel, or the first information and the second information are carried in different channels.

[0186] In some embodiments, when the first information and the second information are carried in a same channel, a terminal device in the first cell determines a start bit position corresponding to the second information according to an end bit position corresponding to the first information; or the start bit position corresponding to the second information is predefined or configured by the network device.

[0187] In some embodiments, a correspondence between the first cell and the second cell or the second cell group is predefined or configured by the network device.

[0188] In some embodiments, the first information is sent when the first cell satisfies at least one of the following conditions: there is no terminal device in a connected state in the first cell; a number of terminal devices in a connected state in the first cell is less than or equal to a first threshold value; a load of the first cell is less than or equal to a second threshold value; a service priority of the first cell is less than or equal to a third threshold value.

[0189] In some embodiments, the terminal device is in any one of the following states: an idle state, an inactive state, and a connected state.

[0190] In some embodiments, the first information is transmitted through resources in the first cell, or the first information is not transmitted through resources in the first cell.

[0191] It should be noted that the apparatus provided by the above embodiments is only exemplified by the above division of various functional modules when realizing its functions, and in actual application, the above functions can be completed by different functional modules according to actual needs, that is, the content structure of the device is divided into different functional modules to complete all or part of the above-described functions.

[0192] As to the apparatus in the above embodiments, the specific manners in which various modules perform operations have been described in detail in the embodiments of the method, and will not be described in detail here. For details not described in detail in the apparatus embodiments, reference can be made to the above method embodiments.

[0193] Please refer to FIG. 13, which shows a structural schematic diagram of a communication device provided by an embodiment of the present application. The communication device 1300 can include a processor 1301, a transceiver 1302, and a memory 1303. The transceiver 1302 is configured to implement sending and / or receiving functions, such as the functions of the above-described sending module and / or receiving module. The processor can be configured to implement other processing functions or control sending and / or receiving, such as the functions of the above-described processing module.

[0194] The processor 1301 includes one or more processing cores. The processor 1301 performs various functional applications and information processing by running software programs and modules.

[0195] The transceiver 1302 can include a receiver and a transmitter, for example, which can be implemented as the same wireless communication component, which can include a wireless communication chip and a radio frequency antenna.

[0196] The memory 1303 can be connected to the processor 1301 and the transceiver 1302.

[0197] The memory 1303 can be used to store computer programs executed by the processor, and the processor 1301 is configured to execute the computer programs.

[0198] In some embodiments, when the communication device is a terminal device, the transceiver 1302 is configured to receive first information, the first information being used to determine a state into which a first cell or a first cell group is about to enter, the first cell group including the first cell, and the state being related to whether to close the cell.

[0199] In some embodiments, when the communication device is a network device, the transceiver 1302 is configured to send first information to a terminal device in a first cell, the first information being used to determine a state into which a first cell or a first cell group is about to enter, the first cell group including the first cell, and the state being related to whether to close the cell.

[0200] For details not specifically described in the present embodiment, reference can be made to the above embodiments, which will not be repeated here.

[0201] Further, the memory can be implemented by any type of volatile or nonvolatile storage devices or a combination thereof, including but not limited to: magnetic or optical disks, electrically erasable programmable read-only memories, erasable programmable read-only memories, static random access memories, read-only memories, magnetic memories, flash memories, programmable read-only memories.

[0202] The embodiment of the present application further provides a computer readable storage medium, wherein the storage medium stores a computer program, and the computer program is used to be executed by a processor to implement the wireless communication method. In some embodiments, the computer readable storage medium can include a ROM (Read-Only Memory), a RAM (Random-Access Memory), a SSD (Solid State Drives) or an optical disc, etc. Wherein, the random access memory can include a ReRAM (Resistance Random Access Memory) and a DRAM (Dynamic Random Access Memory).

[0203] The embodiment of the present application further provides a chip, wherein the chip includes a programmable logic circuit and / or program instructions, and when the chip is running, the chip is used to implement the wireless communication method.

[0204] The embodiment of the present application further provides a computer program product, wherein the computer program product includes computer instructions, the computer instructions are stored in a computer readable storage medium, and a processor reads and executes the computer instructions from the computer readable storage medium to implement the wireless communication method.

[0205] It should be understood that the "indication" mentioned in the embodiments of the present application can be direct indication, or indirect indication, or can be an indication of an associated relationship. For example, A indicates B, which can mean that B can be obtained by A; or A indirectly indicates B, for example, A indicates C, and B can be obtained by C; or A and B have an associated relationship.

[0206] In the description of the embodiments of the present application, the term "corresponding" can mean that there is a direct or indirect corresponding relationship between the two, or can mean that there is an associated relationship between the two, or can mean an indication and being indicated, configuration and being configured, etc.

[0207] In some embodiments of the present application, the "predefined" can be realized by pre-storing corresponding codes, tables or other means for indicating relevant information in devices (for example, including terminal devices and network devices), and the present application does not limit the specific implementation manner. For example, the predefined can refer to the definition in the protocol.

[0208] In some embodiments of the present application, the "protocol" can refer to a standard protocol in the communication field, for example, can include the LTE protocol, the NR protocol and the related protocol applied in the future communication system, and the present application does not limit this.

[0209] "Multiple" mentioned in the present application refers to two or more than two. The "and / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that there are three cases of A alone, A and B together, and B alone. The character " / " generally represents that the associated objects before and after it are in an "or" relationship.

[0210] "Greater than or equal to" mentioned in the present application can mean greater than or equal to, and "less than or equal to" can mean less than or equal to.

[0211] In addition, the step number described in the present application only exemplarily shows a possible execution order between steps, and in some other embodiments, the above steps can also be executed in a sequence different from the number, such as simultaneously executing two steps with different numbers or executing two steps with different numbers in an order opposite to the illustration, and the embodiments of the present application do not limit this.

[0212] Those skilled in the art should realize that in one or more of the above examples, the functions described in the embodiments of the present application can be realized by hardware, software, firmware or any combination thereof. When realized by software, these functions can be stored in a computer readable medium or transmitted as one or more instructions or codes on a computer readable medium. The computer readable medium includes a computer storage medium and a communication medium, wherein the communication medium includes any medium facilitating the transmission of computer programs from one place to another. The storage medium can be any available medium accessible by a general or special purpose computer.

[0213] The above only describes exemplary embodiments of the present application and does not limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method of wireless communication, the method comprising: The method is performed by a terminal device in a first cell, and the method comprises: receiving first information, the first information being used to determine a state that the first cell or a first cell group is about to enter, the first cell group comprising the first cell, the state being related to whether a cell is to be closed.

2. The method of claim 1, wherein, The first information is carried in a first channel, the first channel comprising a control channel and / or a shared channel, the control channel being used to carry control information, and the shared channel being used to carry data information.

3. The method of claim 2, wherein, The control channel comprises at least one of the following: a first control channel scheduling paging message transmission; a second control channel scheduling system message transmission; a third control channel indicating whether to monitor a paging message.

4. The method according to claim 2 or 3, characterized in that, The shared channel comprises at least one of the following: a first shared channel carrying a paging message; a second shared channel carrying a system message.

5. The method according to any one of claims 2 to 4, characterized in that, The information carried by the first channel comprises one or more indication information, each indication information being used to indicate a state that a cell or a cell group is about to enter, and the first information is one indication information used to indicate a state that the first cell or the first cell group is about to enter.

6. The method of any of claims 1 to 5, wherein: in a case where the first information indicates a first value, the first information is used to determine that the first cell or the first cell group is about to be closed; and / or in a case where the first information indicates a second value, the first information is used to determine that the first cell or the first cell group is not to be closed; wherein the first value and the second value are different. In a case where the first information is used to determine a state that the first cell group is about to enter, the first information comprises one or more sub-information, each sub-information being used to determine a state that a cell comprised in the first cell group is about to enter.

7. The method according to any one of claims 1 to 5, characterized in that, A correspondence between the first information and the first cell or the first cell group is predefined or configured by the network device.

8. The method according to any one of claims 1 to 7, characterized in that, A cell comprised in the first cell group is predefined or configured by the network device.

9. The method according to any one of claims 1 to 8, characterized in that, A starting bit position corresponding to the first information is predefined or configured by the network device.

10. The method according to any one of claims 1 to 9, characterized in that, The method further comprises:

11. The method according to any one of claims 1 to 10, characterized in that, determining, according to the first information, that the first cell is to be closed after a first time duration. The determining, according to the first information, that the first cell is to be closed after the first time duration comprises:

12. The method of claim 11, wherein, in a case where it is determined, according to the first information, that the first cell is about to be closed, if the terminal device does not receive third information within the first time duration, determining that the first cell is to be closed after the first time duration, wherein the third information is used to determine that the first cell is to be closed, or the third information is used to determine that the first cell is to be closed or to work normally; or in a case where it is determined, according to the first information, that the first cell is about to be closed, if the terminal device receives again the first information within the first time duration, the again received first information being used to determine that the first cell is to be closed, determining that the first cell is to be closed after the first time duration; or ​ In a case that the first cell is determined to be closed soon according to the first information, if the terminal device receives third information within the first time length, the third information is used to determine that the first cell is closed, it is determined that the first cell is closed after the first time length.

13. The method according to claim 11 or 12, characterized in that, The start of the first time length is determined based on a time unit in which the first information is received.

14. The method of claim 13, wherein, the start of the first time length is a start position of a time unit in which the first information is received; or the start of the first time length is an end position of a time unit in which the first information is received; or the start of the first time length is a first time unit after a time unit in which the first information is received and a second time length.

15. The method according to any one of claims 1 to 14, characterized in that, The method further comprises: In a case that the first cell is determined to be closed soon according to the first information, within a third time length, the terminal device sends request information to the network device through the first cell or another cell different from the first cell, the request information is used to request not to close the first cell.

16. The method of claim 15, wherein, The start of the third time length is determined based on a time unit in which the first information is received.

17. The method of claim 16, wherein, the start of the third time length is a start position of a time unit in which the first information is received; or the start of the third time length is an end position of a time unit in which the first information is received; or the start of the third time length is a first time unit after a time unit in which the first information is received and a second time length.

18. The method according to any one of claims 15 to 17, characterized in that, The method further comprises: receiving response information corresponding to the request information sent by the network device, the response information is used to determine whether to close the first cell; or in a case that the response information corresponding to the request information sent by the network device is not received, it is determined to close the first cell.

19. The method of claim 18, wherein, The response information is received within a fourth time length, the start of the fourth time length is determined based on a time unit in which the first information is received, or a time unit in which the request information is sent.

20. The method of claim 19, wherein, the start of the fourth time length is a start position of a time unit in which the first information is received; or the start of the fourth time length is an end position of a time unit in which the first information is received; or the start of the fourth time length is a first time unit after a time unit in which the first information is received and a second time length; or the start of the fourth time length is a start position of a time unit in which the request information is sent; or the start of the fourth time length is an end position of a time unit in which the request information is sent; or the start of the fourth time length is a first time unit after a time unit in which the request information is sent and a fifth time length. The method further comprises: sending second information to a terminal device in the first cell, the second information is used to determine a second cell or a second cell group; 21. The method according to any one of claims 1 to 20, characterized in that, ​ ​ The second cell or the second cell group corresponds to the first cell, or the second cell or the second cell group is a target cell or a target cell group for a terminal device in the first cell to switch to and reside in.

22. The method of claim 21, wherein, The second information is used to indicate identification information of the second cell or the second cell group.

23. The method of claim 21, wherein, in a case where the second information indicates a third value, the second information is used to determine the second cell or the second cell group as the target cell or the target cell group; and / or, in a case where the second information indicates a fourth value, the second information is used to determine that the second cell or the second cell group is not the target cell or the target cell group; wherein the third value and the fourth value are different.

24. The method according to any one of claims 21 to 23, characterized in that, The first information and the second information are carried in a same channel, or the first information and the second information are carried in different channels.

25. The method according to any one of claims 21 to 24, characterized in that, in a case where the first information and the second information are carried in the same channel, a terminal device in the first cell; a number of terminal devices in the first cell in a connected state is less than or equal to a first threshold value; 26. The method of any one of claims 21 to 25, wherein, a load of the first cell is less than or equal to a second threshold value; 27. The method according to any one of claims 1 to 26, characterized in that, a service priority of the first cell is less than or equal to a third threshold value. The terminal device is in any one of the following states: an idle state, an inactive state, and a connected state. The first information is transmitted through resources in the first cell, or the first information is not transmitted through the resources in the first cell. The method is performed by a network device, and the method comprises: sending, to a terminal device in a first cell, first information, the first information being used to determine a state that the first cell or a first cell group is about to enter, the first cell group comprising the first cell, the state being related to whether a cell is closed.

28. The method of any one of claims 1 to 27, wherein, The first information is carried in a first channel, the first channel comprising a control channel and / or a shared channel, the control channel being used to carry control information, and the shared channel being used to carry data information.

29. The method according to any one of claims 1 to 28, characterized in that, The control channel comprises at least one of the following:

30. A method of wireless communication, the method comprising: a first control channel scheduling transmission of a paging message; a second control channel scheduling transmission of a system message; 31. The method of claim 30, wherein, a third control channel indicating whether to monitor a paging message.

32. The method of claim 31, wherein, The shared channel comprises at least one of the following: a first shared channel carrying a paging message; a second shared channel carrying a system message. ​ 33. The method of claim 31 or 32, wherein, ​ ​ ​ 34. The method of any one of claims 31 to 33, wherein, The first channel carries one or more indication information, each of which is used to indicate a state that a cell or a cell group is about to enter, and the first information is one of the one or more indication information and is used to indicate a state that the first cell or the first cell group is about to enter.

35. The method of any of claims 30 to 34, further comprising: in a case where the first information indicates a first value, the first information is used to determine that the first cell or the first cell group is about to be closed; and / or, in a case where the first information indicates a second value, the first information is used to determine that the first cell or the first cell group is not about to be closed; wherein the first value and the second value are different.

36. The method of any one of claims 30 to 34, wherein, in a case where the first information is used to determine a state that the first cell group is about to enter, the first information comprises one or more sub-information, each of which is used to determine a state that a cell comprised in the first cell group is about to enter.

37. The method of any one of claims 30 to 36, wherein, The first information is predefined or configured by the network device.

38. The method of any one of claims 30 to 37, wherein, The cell comprised in the first cell group is predefined or configured by the network device.

39. The method of any one of claims 30 to 38, wherein, The starting bit position corresponding to the first information is predefined or configured by the network device.

40. The method of any one of claims 30 to 39, wherein, The first cell is closed after a first time duration.

41. The method of claim 40, wherein, The method further comprises: in a case where the first information is used to determine that the first cell is about to be closed, sending third information within the first time duration, the third information being used to determine that the first cell is not closed, or the third information being used to determine that the first cell is closed or normally working; or in a case where the first information is used to determine that the first cell is about to be closed, sending the first information again within the first time duration, the first information being used to determine that the first cell is closed or normally working.

42. The method of claim 40 or 41, wherein, The starting point of the first time duration is determined based on a time unit in which the first information is received.

43. The method of claim 42, wherein: the starting point of the first time duration is a starting position of the time unit in which the first information is received; or the starting point of the first time duration is an ending position of the time unit in which the first information is received; or the starting point of the first time duration is a first time unit after a second time duration from the time unit in which the first information is received.

44. The method of any one of claims 30 to 43, wherein, The method further comprises: in a case where the first information is used to determine that the first cell is about to be closed, receiving, within a third time duration, request information sent by the terminal device to the network device through the first cell or another cell different from the first cell, the request information being used to request that the first cell is not closed.

45. The method of claim 44, wherein, The starting point of the third time duration is determined based on a time unit in which the first information is received.

46. The method of claim 45, wherein: the starting point of the third time duration is a starting position of the time unit in which the first information is received; or the starting point of the third time duration is an ending position of the time unit in which the first information is received. The start of the third time length is the end position of the time unit in which the first information is received; or The start of the third time length is the first time unit after a second time length from the time unit in which the first information is received.

47. The method of any one of claims 44 to 46, wherein, The method further comprises: sending response information corresponding to the request information to the terminal device, the response information being used to determine whether to close the first cell.

48. The method of claim 47, wherein, The response information is received within a fourth time length, and the start of the fourth time length is determined based on a time unit in which the first information is received or a time unit in which the request information is sent.

49. The method of claim 48, wherein The start of the fourth time length is the start position of the time unit in which the first information is received; or The start of the fourth time length is the end position of the time unit in which the first information is received; or The start of the fourth time length is the first time unit after a second time length from the time unit in which the first information is received. Or The start of the fourth time length is the start position of the time unit in which the request information is sent. Or The start of the fourth time length is the end position of the time unit in which the request information is sent; or The start of the fourth time length is the first time unit after a fifth time length from the time unit in which the request information is sent.

50. The method of any one of claims 30 to 49, wherein, The method further comprises: sending second information to terminal devices in the first cell, the second information being used to determine a second cell or a second cell group; wherein the second cell or the second cell group corresponds to the first cell, or the second cell or the second cell group is a target cell or a target cell group to which a terminal device in the first cell is switched to camp on.

51. The method of claim 50, wherein, The second information is used to indicate identification information of the second cell or the second cell group.

52. The method of claim 50, wherein in a case where the second information indicates a third value, the second information is used to determine the second cell or the second cell group as the target cell or the target cell group; and / or in a case where the second information indicates a fourth value, the second information is used to determine that the second cell or the second cell group is not the target cell or the target cell group; wherein the third value and the fourth value are different.

53. The method of any one of claims 50 to 52, wherein, The first information and the second information are carried in a same channel, or the first information and the second information are carried in different channels.

54. The method of any one of claims 50-53, wherein, In a case where the first information and the second information are carried in a same channel, the end bit position corresponding to the first information and the start bit position corresponding to the second information are two consecutive bit positions; or the start bit position corresponding to the second information is predefined or configured by the network device.

55. The method of any one of claims 50 to 54, wherein, The correspondence between the first cell and the second cell or the second cell group is predefined or configured by the network device.

56. The method of any one of claims 30 to 55, wherein, The first information is sent in a case where the first cell satisfies at least one of the following conditions: there is no terminal device in a connected state in the first cell; The number of terminal devices in the connected state in the first cell is less than or equal to a first threshold value; The load of the first cell is less than or equal to a second threshold value; The service priority of the first cell is less than or equal to a third threshold value.

57. The method of any one of claims 30 to 56, wherein, The terminal device is in any one of the following states: an idle state, an inactive state, and a connected state.

58. The method of any one of claims 30 to 57, wherein, The first information is transmitted through resources in the first cell, or the first information is not transmitted through resources in the first cell.

59. A wireless communication apparatus, characterized by: The apparatus includes a receiving module; The receiving module is configured to receive first information, the first information being used to determine a state that a first cell or a first cell group is about to enter, the first cell group including the first cell, and the state being related to whether a cell is closed.

60. A wireless communication apparatus, characterized by: The apparatus includes a sending module; The sending module is configured to send first information to a terminal device in a first cell, the first information being used to determine a state that the first cell or a first cell group is about to enter, the first cell group including the first cell, and the state being related to whether a cell is closed.

61. A communications device, characterized by The communication device includes a processor and a memory, the memory storing a computer program, and the processor executes the computer program to implement the method of any one of claims 1 to 29 or the method of any one of claims 30 to 58.

62. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, and the computer program is used to be executed by a processor to implement the method of any one of claims 1 to 29 or the method of any one of claims 30 to 58.

63. A chip, comprising: The chip includes a programmable logic circuit and / or program instructions, and when the chip is running, the programmable logic circuit and / or program instructions are used to implement the method of any one of claims 1 to 29 or the method of any one of claims 30 to 58.

64. A computer program product, characterised in that, The computer program product includes computer instructions stored in a computer readable storage medium, and a processor reads and executes the computer instructions from the computer readable storage medium to implement the method of any one of claims 1 to 29 or the method of any one of claims 30 to 58.

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