Wireless communication method and apparatus, device, and storage medium

Abstract

A wireless communication method and apparatus, a device, and a storage medium, which relate to the technical field of communications. The method comprises: a first network device sending first configuration information to a first terminal device in a first cell, the first configuration information being used for acquiring system configuration information of a second cell (710). By means of the method, the first terminal device can flexibly choose, on the basis of requirements, to reside in the first cell and / or access the second cell. When the first terminal device only has a cell residence requirement, the second cell can be deactivated, thereby reducing the energy consumption of a second network device; and when the first terminal device has a data transmission requirement, the first terminal device can access the second cell, thereby ensuring that the data transmission requirement of the first terminal device is met.

Description

Wireless communication methods, apparatus, devices and storage media Technical Field

[0001] This application relates to the field of communication technology, and in particular to a wireless communication method, apparatus, device, and storage medium. Background Technology

[0002] With the development of wireless communication technology, the demand for Network Energy Saving (NES) has emerged. Network energy saving is of great significance for environmental sustainability, reducing environmental impact (reducing greenhouse gas emissions), and saving operating costs.

[0003] When there are no terminal devices in a cell that need to provide services, the network device can shut down the entire cell to save network energy.

[0004] However, energy savings in network equipment can lead to a decrease in the communication performance of terminal devices. Further research is needed on how to turn on a cell to provide service to a terminal device that enters its coverage area when the cell is in a closed state.

[0005] Summary of the Invention

[0006] This application provides a wireless communication method, apparatus, device, and storage medium. The technical solutions provided by this application are as follows:

[0007] According to one aspect of the embodiments of this application, a wireless communication method is provided, the method being executed by a first terminal device, wherein the first network device is a network device in a first cell, and the second network device is a network device in a second cell, the method comprising:

[0008] The system receives first configuration information sent by the first network device, the first configuration information being used to obtain system configuration information of the second cell.

[0009] According to one aspect of the embodiments of this application, a wireless communication method is provided, the method being executed by a first network device, wherein the first network device is a network device in a first cell, and a second network device is a network device in a second cell, the method comprising:

[0010] Send first configuration information to the first terminal device in the first cell, wherein the first configuration information is used to obtain the system configuration information of the second cell.

[0011] According to one aspect of the embodiments of this application, a wireless communication method is provided, the method being executed by a second network device, wherein the second network device is a network device in a second cell, and a first network device is a network device in a first cell, the method comprising:

[0012] Send first configuration information to the first network device, wherein the first configuration information is used to obtain system configuration information of the second cell; and / or,

[0013] Send second configuration information to the first terminal device in the first cell, the second configuration information being used to determine the system configuration information of the second cell.

[0014] According to one aspect of the embodiments of this application, a wireless communication device is provided, the device comprising: a receiving module;

[0015] The receiving module is used to receive first configuration information sent by the first network device, and the first configuration information is used to obtain the system configuration information of the second cell.

[0016] According to one aspect of the embodiments of this application, a wireless communication device is provided, the device comprising: a transmitting module;

[0017] The sending module is used to send first configuration information to a first terminal device in the first cell, wherein the first configuration information is used to obtain system configuration information of the second cell.

[0018] According to one aspect of the embodiments of this application, a wireless communication device is provided, the device comprising: a transmitting module;

[0019] The sending module is used to send first configuration information to the first network device, wherein the first configuration information is used to obtain system configuration information of the second cell;

[0020] And / or,

[0021] The sending module is used to send second configuration information to a first terminal device in the first cell, the second configuration information being used to determine the system configuration information of the second cell.

[0022] According to one aspect of the embodiments of this application, a communication device is provided, the communication device including a processor and a memory, the memory storing a computer program, and the processor executing the computer program to implement the above-described wireless communication method.

[0023] According to one aspect of the embodiments of this application, a computer-readable storage medium is provided, wherein the storage medium stores a computer program for execution by a processor to implement the above-described wireless communication method.

[0024] According to one aspect of the embodiments of this application, a chip is provided, the chip including programmable logic circuits and / or program instructions, which, when the chip is running, are used to implement the above-described wireless communication method.

[0025] According to one aspect of the embodiments of this application, a computer program product is provided, the computer program product including computer instructions stored in a computer-readable storage medium, and a processor reading from the computer-readable storage medium and executing the computer instructions to implement the above-described wireless communication method.

[0026] The technical solutions provided in this application embodiment may have the following beneficial effects:

[0027] The first terminal device can flexibly choose to camp on the first cell and / or access the second cell according to its needs. Specifically, when the first terminal device only needs to camp on a cell, the second cell of the second network device can be turned off, thereby saving the energy consumption of the second network device. When the first terminal device has data transmission needs, it can use the first configuration information sent by the first cell to obtain the system configuration information of the second cell to access the second cell, thereby ensuring that the data transmission needs of the first terminal device are met. Attached Figure Description

[0028] Figure 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application;

[0029] Figure 2 is a schematic diagram of the architecture of a communication system provided in another embodiment of this application;

[0030] Figure 3 is a schematic diagram of the architecture of a communication system provided in another embodiment of this application;

[0031] Figure 4 is a schematic diagram of a communication system including a TN network and an NTN network provided in an embodiment of this application;

[0032] Figure 5 is a schematic diagram of a communication system including a TN network and an NTN network provided in another embodiment of this application;

[0033] Figure 6 is a schematic diagram of a communication system including a TN network and an NTN network provided in another embodiment of this application;

[0034] Figure 7 is a flowchart of a wireless communication method provided in an embodiment of this application;

[0035] Figure 8 is a flowchart of a first terminal device accessing a second cell according to an embodiment of this application;

[0036] Figure 9 is a flowchart of a first terminal device accessing a second cell according to another embodiment of this application;

[0037] Figure 10 is a flowchart of a first terminal device accessing a second cell according to another embodiment of this application;

[0038] Figure 11 is a flowchart of opening a second cell in transmission mode 1 according to an embodiment of this application;

[0039] Figure 12 is a flowchart of opening a second cell in transmission mode 1 according to another embodiment of this application;

[0040] Figure 13 is a flowchart of opening a second cell in transmission mode 2 according to an embodiment of this application;

[0041] Figure 14 is a block diagram of a wireless communication device provided in an embodiment of this application;

[0042] Figure 15 is a block diagram of a wireless communication device provided in another embodiment of this application;

[0043] Figure 16 is a block diagram of a wireless communication device provided in another embodiment of this application;

[0044] Figure 17 is a schematic diagram of the structure of a communication device provided in an embodiment of this application. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0046] The network architecture and business scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0047] The technical solutions of this application embodiment can be applied to various communication systems, such as: Global System for 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, evolution 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), and Wireless Fidelity (WF). Fidelity (WiFi), 5th-Generation (5G) communication systems, 6th-Generation (6G) communication systems, or other communication systems.

[0048] Traditional communication systems typically support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication but also, 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. The embodiments of this application can also be applied to these communication systems.

[0049] The communication system in this application embodiment can be applied to carrier aggregation (CA) scenarios, dual connectivity (DC) scenarios, and standalone (SA) network deployment scenarios.

[0050] The communication system in this application embodiment can be applied to unlicensed spectrum, which can also be considered as shared spectrum; or, the communication system in this application embodiment can also be applied to licensed spectrum, which can also be considered as non-shared spectrum.

[0051] Communication system scenarios include non-terrestrial networks (NTN) and terrestrial networks (TN). NTN typically uses satellite communication to provide services to terrestrial users. Current NTN systems include NR-NTN and IoT-NTN systems, and other NTN systems may be included in the future.

[0052] For example, Figure 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application. As shown in Figure 1, the communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120. The network device 110 can provide communication coverage for a specific geographical area and can communicate with terminal devices located within that coverage area.

[0053] Figure 1 exemplarily illustrates a network device 110 and two terminal devices 120. In some embodiments of this application, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area. This application does not limit this aspect.

[0054] For example, Figure 2 is a schematic diagram of another communication system architecture provided in an embodiment of this application. Referring to Figure 2, the communication system may include a terminal device 201 and a satellite 202, and wireless communication is possible between the terminal device 201 and the satellite 202. The network formed between the terminal device 201 and the satellite 202 may also be called an NTN. In the architecture of the communication system shown in Figure 2, the satellite 202 may have the function of a base station, and the terminal device 201 and the satellite 202 can communicate directly. In this system architecture, the satellite 202 can be referred to as a network device. In some embodiments of this application, the communication system may include multiple satellites 202, and the coverage area of ​​each network satellite 202 may include other numbers of terminal devices; this application does not limit this aspect.

[0055] For example, Figure 3 is a schematic diagram of another communication system architecture provided in an embodiment of this application. Referring to Figure 3, the communication system includes a terminal device 301, a satellite 302, and a base station 303. Wireless communication is possible between the terminal device 301 and the satellite 302, and communication is possible between the satellite 302 and the base station 303. The network formed between the terminal device 301, the satellite 302, and the base station 303 can also be called an NTN. In the architecture of the communication system shown in Figure 3, the satellite 302 may not have the function of a base station, and communication between the terminal device 301 and the base station 303 requires relaying through the satellite 302. In this system architecture, the base station 303 can be referred to as a network device. In some embodiments of this application, the communication system may include multiple base stations 303, each base station 303 can communicate with one or more satellites 302, and the coverage area of ​​each satellite 302 may include other numbers of terminal devices; this application does not limit this aspect.

[0056] In future communication systems such as B5G (Beyond 5G) or 6G, there may also be distributed multiple-input multiple-output (MIMO, also known as distributed antenna system) scenarios and / or massive multiple-input multiple-output (MIMO, also known as massive antenna matrix system) scenarios. 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.

[0057] Understandably, with the development of communication technology, future communication systems such as B5G or 6G can support TN or NTN, as well as network deployment scenarios centered on base stations or terminal-centered.

[0058] The terminal device mentioned in the embodiments of this application may refer to UE (User Equipment), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, wireless communication device, user agent, or user device. Optionally, the terminal device 10 may also be a cellular phone, cordless phone, SIP (Session Initiation Protocol) phone, WLL (Wireless Local Loop) station, PDA (Personal Digital Assistant), handheld device with wireless communication function, computing device or other processing device connected to a wireless modem, vehicle-mounted device, wearable device, terminal device in 5GS (5th Generation System), or terminal device in the future evolved PLMN (Public Land Mobile Network), etc., and the embodiments of this application are not limited thereto. For ease of description, the devices mentioned above are collectively referred to as terminal devices. In the embodiments of this application, "terminal device" and "UE" are usually used interchangeably, but those skilled in the art will understand that they can express the same meaning.

[0059] The network devices mentioned in this application embodiment can be access network devices, located on the ground or on a satellite. An access network device is a device deployed in an access network to provide wireless communication functions for terminal devices. Access network devices can include various forms of macro base stations, micro base stations, relay stations, access points, etc. In systems employing different wireless access technologies, the names of devices with access network device functions may differ; for example, in a 5G NR system, they are called gNodeB or gNB. As communication technologies evolve, the name "access network device" may change. For ease of description, in this application embodiment, the aforementioned devices providing wireless communication functions for terminal devices are collectively referred to as access network devices. Optionally, a communication relationship can be established between the terminal device and the core network device through the access network device.

[0060] The "5G NR system" in this application embodiment can also be referred to as a 5G system or an NR system, but those skilled in the art will understand its meaning. The technical solutions described in this application embodiment can be applied to LTE systems, 5G NR systems, and subsequent evolution systems of 5G NR systems (such as 6G systems), as well as other communication systems such as NB-IoT (Narrow Band Internet of Things) systems. This application does not limit these applications.

[0061] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) on the carrier used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0062] Before introducing the technical solution of this application, some related technical knowledge involved in this application will be introduced and explained. The following related technologies are optional solutions and can be arbitrarily combined with the technical solutions of the embodiments of this application, all of which fall within the protection scope of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0063] 1. Network energy saving

[0064] Network energy efficiency is crucial for environmental sustainability, reducing environmental impact (such as greenhouse gas emissions), and saving operating costs. As 5G becomes more widespread across industries and geographic regions, the need to support very high data transmission rates to handle more advanced services and applications (such as XR) necessitates denser network deployments, utilizing more antennas, greater bandwidth, and more frequency bands. Given the environmental impact of 5G, there is a need to develop controlled, new solutions to enhance network energy efficiency.

[0065] Energy consumption has become a critical component of operators' operational expenditure (OPEX). According to a report by the GSMA (Global System for Mobile Communications Association), energy costs for mobile networks account for approximately 23% of total OPEX. Most energy consumption originates from the radio access network, more specifically from the active antenna unit (AAU), with data centers and fiber optic transmission accounting for a smaller share. The power consumption of a single radio access can be divided into two parts: the dynamic part includes only the power consumption when data is being transmitted or received; the static part includes the power consumption necessary for the necessary operation of the radio access equipment at all times, including when no data is being transmitted or received.

[0066] With the development of communication technology and the evolution of communication systems, energy consumption has gradually become an important KPI (Key Performance Indicator) for the operating efficiency of communication systems. Therefore, network energy-saving technologies need to be considered when designing 6G communication systems.

[0067] Initial Access in a 2.5G NR System

[0068] In NR systems, the initial access process for terminal devices can be completed by detecting the Synchronization Signal / PBCH Block (SSB or SS / PBCH block) on the Sync Raster. The SSB is transmitted through a Discovery Burst Transmission Window or an SSB transmission opportunity window. These windows occur periodically, and the period can be configured by the network device using higher-layer parameters. During the initial access process, the terminal device attempts to search for SSBs based on their predefined possible time-frequency locations. The detected SSBs provide time and frequency synchronization, radio frame timing, and the cell ID.

[0069] One primary function of the SSB index is to allow the UE to obtain system timing information. Besides this, the SSB index also serves another function: indicating the quasi-co-location (QCL) relationship between SSBs, or in other words, indicating beam direction. QCL refers to the fact that the large-scale parameters of the channel experienced by a symbol on one antenna port can be inferred from the channel experienced by a symbol on another antenna port. These large-scale parameters can include delay spread, average delay, Doppler spread, Doppler shift, and spatial reception parameters. Specifically, in a 5G NR system, SSBs carried by different beams constitute an SSB burst set. Different SSB indices correspond to the time-domain location information of different SSBs within the burst set, and also to the specific SSB transmission beam information. SSBs with the same SSB index can be 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; there is no QCL relationship between SSBs corresponding to different SSB indices, because they may come from different transmission beams of the network device and have experienced different channel transmission characteristics.

[0070] After detecting an 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 network device scheduling of SIB1 (System Information Block 1) messages by listening to the Type0-PDCCH CSS set. Both the MIB and SIB1 messages include the serving cell's system configuration information. Furthermore, the terminal device can receive network device scheduling of other system messages besides SIB1 messages by listening to the Type0A-PDCCH CSS set, receive network device scheduling of paging messages by listening to the Type2-PDCCH CSS set, and receive Paging Early Indication (PEI) information for paging messages sent by the network device by listening to the Type2A-PDCCH CSS set.

[0071] The terminal device can also obtain the resource configuration for PRACH (Physical Random Access Channel) transmission opportunities (RO) during the random access process based on the received cell system message SIB1. RO is the time-frequency resource carrying the random access preamble (also known as PRACH). If two-step RACH (Random Access Channel) transmission is supported, the resource configuration during the random access process also includes PUSCH (Physical Uplink Shared Channel) resource configuration, also known as PUSCH transmission opportunities (PO). In the two-step RACH, message A (MsgA) includes MsgA PRACH and MsgA PUSCH. RO is the time-frequency resource used to carry MsgA PRACH, and PO is the time-frequency resource used to carry MsgA PUSCH.

[0072] A key feature of the NR system is its support for downlink multi-beaming, where different SSBs are associated with different beams. Before a terminal device initiates random access, it measures and evaluates the signal quality of the cell and the signal strength of each SSB within it. If the detected SSB signal strength exceeds a threshold, the strongest or relatively strong SSB is identified. For example, if the terminal device determines SSB#1 as the strongest SSB, it determines the corresponding PRACH transmission opportunity for SSB#1 as RO#1 based on the mapping relationship between SSBs and ROs, and transmits the PRACH on RO#1. If the network device successfully receives the PRACH, it can determine the SSB selected by the terminal device based on the resource information from the successful reception. For instance, the network device can determine that the PRACH is associated with SSB#1 based on the association relationship, and thus determine the beam information for subsequent communication based on SSB#1.

[0073] In addition, based on the RO resources configured by the network device, the terminal device can also request system messages to be sent from the network device. The system messages that the terminal device requests to be sent from the network device can be other system messages besides SIB1, such as SIB2, SIB3, SIB4, SIB5, SIB6, SIB7, SIB8, SIB9, SIB10, SIB11, SIB12, SIB13, SIB14, SIB15, SIB16, SIB17, SIB18, SIB19, SIB20, SIB21, etc.

[0074] This application primarily considers network energy-saving solutions in 6G networks. The core idea includes utilizing a first cell, such as an NTN cell, to provide wide coverage for terminal devices, and utilizing a second cell, such as a TN cell, to provide high-speed data transmission for terminal devices. When terminal devices do not require high-speed data transmission, the TN cell can be in an energy-saving mode, such as being off.

[0075] The application scenarios of this application include, but are not limited to, the following: Wherein, the NTN cell is the first cell, and the network equipment in the first cell is the first network equipment; the TN cell is the second cell, and the network equipment in the second cell is the second network equipment.

[0076] In the scenario example shown in Figure 4, a first network device (e.g., base station 1) located on a satellite in the NTN network can wirelessly communicate with terminal devices within its provided communication coverage area (e.g., within the coverage area of ​​the first cell). Similarly, a second network device (e.g., base station 2) located on the ground in the TN network can wirelessly communicate with terminal devices within its provided communication coverage area (e.g., within the coverage area of ​​the second cell). The second cell coverage area is within the first cell coverage area, or the second cell coverage area at least partially overlaps with the first cell coverage area. The terminal device (e.g., UE1) is located within both the first and second cell coverage areas. The first and second network devices can interact through an interface between the network devices, a wireless communication link, or other means.

[0077] In the scenario example shown in Figure 5, a first network device located on the ground in the NTN network (e.g., base station 1) can wirelessly communicate with terminal devices within its provided communication coverage area (e.g., within the coverage area of ​​the first cell). The wireless communication between the first network device and the terminal devices within the first cell coverage area is relayed via satellite (e.g., using transparent forwarding mode). Similarly, a second network device located on the ground in the TN network (e.g., base station 2) can wirelessly communicate with terminal devices within its provided communication coverage area (e.g., within the coverage area of ​​the second cell). The second cell coverage area is within the first cell coverage area, or the second cell coverage area at least partially overlaps with the first cell coverage area. The terminal device (e.g., UE1) is located within both the first and second cell coverage areas. The first and second network devices can interact through an interface between the network devices, a wireless communication link, a wired communication link, or other means.

[0078] In the scenario example shown in Figure 6, a first network device located on the ground in the NTN network (e.g., base station 1) can wirelessly communicate with terminal devices within its provided communication coverage area (e.g., within the coverage area of ​​the first cell). The wireless communication between the first network device and the terminal devices within the first cell coverage area is relayed via satellite (e.g., using transparent forwarding mode). A second network device located on the ground in the TN network (e.g., base station 2) can wirelessly communicate with terminal devices within its provided communication coverage area (e.g., within the coverage area of ​​the second cell). The coverage area of ​​the second cell is within the coverage area of ​​the first cell, or the coverage area of ​​the second cell at least partially overlaps with the coverage area of ​​the first cell. The terminal device (e.g., UE1) is located within both the coverage area of ​​the first and second cells. The first network device and the second network device are co-located network devices or are the same network device. The first network device and the second network device can interact through an interface between network devices, a wired communication link, or other means.

[0079] In the scenarios shown in Figures 4 to 6 above, to save energy consumption of terrestrial network equipment, the second cell can be shut down, or the radio frequency link serving the second cell can be shut down. If a terminal device within the coverage area of ​​the second cell has communication transmission needs when the second cell is shut down, the second cell can be activated with the assistance of the first cell.

[0080] With the development of communication technology, research on 6G communication technology has begun. Considering the importance of network energy conservation, possible energy-saving solutions need to be considered from the initial design stage of 6G communication technology. From an energy-saving perspective, network equipment should minimize the transmission of "always-on" signals to avoid potentially unnecessary energy consumption. In extreme cases, such as when there are no terminal devices requiring service in a cell, the network equipment can shut down the entire cell. However, energy saving by the network equipment will lead to a decrease in the communication performance of terminal devices. How to turn the cell back on to provide service to a terminal device that enters the coverage area of ​​a cell while it is in a shut-down state is a problem that needs to be solved.

[0081] Please refer to Figure 7, which shows a flowchart of a wireless communication method provided in one embodiment of this application. This method can be applied to the network architectures shown in Figures 1 to 6, as well as other network architectures. As shown in Figure 7, the method may include at least one of the following steps (710-720):

[0082] Step 710: The first network device sends first configuration information to the first terminal device in the first cell. The first configuration information is used to obtain the system configuration information of the second cell.

[0083] Accordingly, the first terminal device receives the first configuration information sent by the first network device.

[0084] The system configuration information of the second cell is used for the first terminal device to access the second cell. It may include at least one of the following: synchronization signal, frequency allocation, channel coding, access permission, and cell resource management, to ensure that the first terminal device can effectively access the second network device and carry out stable communication transmission.

[0085] In some embodiments, the first network device and the second network device are the same network device.

[0086] In some embodiments, the first network device and the second network device are different network devices.

[0087] In some embodiments, the system configuration information of the second cell is used to determine at least one of the following: the SSB of the second cell, the cell identifier of the second cell, the MIB of the second cell, the SIB of the second cell, and the random access configuration of the second cell. The synchronization signal block (SSB) of the second cell provides time and frequency synchronization information for the second cell. This may include physical signals used for synchronization to ensure alignment between the first terminal device and the second network device in the time and frequency domains. The system configuration information of the second cell used to determine the SSB may refer to at least one piece of information used to determine the synchronization signal, such as the frequency point of the synchronization signal (e.g., the ARFCN (Absolute Radio Frequency Channel Number) value), the subcarrier spacing, and the period of the synchronization signal. The cell identifier is a unique identifier assigned to each cell in a wireless communication network to distinguish different cells. The first terminal device can identify the second cell based on the cell identifier to avoid confusion. The main information block (MIB) of the second cell may include basic system configuration information of the cell, such as the system frame number. After decoding the MIB, the first terminal device can obtain the necessary parameters to perform the initial access procedure. The System Information Block (SIB) of the second cell can include more detailed system configuration information, including the cell's bandwidth configuration, resource configuration, access policy, neighbor cell information, etc. SIBs can be SIB1, SIB2, etc., with different types of SIBs carrying different information. For example, the first terminal device can obtain the resource configuration of PRACH RO during random access based on the received system message SIB1 from the cell. The first terminal device can understand the operating status, random access restrictions, and available resources of the second network device based on the information in the SIB, helping it to better perform access and data transmission. The random access configuration of the second cell guides the first terminal device on how to initiate an access request in the network to prevent conflicts. It can include random access parameter settings, such as the selection of the access channel, random access preamble, conflict resolution policy, access time slot configuration, maximum retransmission count, and retransmission interval. During access, the first terminal device can select the correct access method based on the random access configuration to improve the success rate of random access and reduce latency.

[0088] In step 710 above, to save energy consumption of the second network device, the second cell can be in a closed state. When the second cell is closed, if the first terminal device within the coverage area of ​​the second cell has data transmission needs, the second cell can be opened with the assistance of the first cell. In some embodiments, the second cell can provide the first terminal device with functions other than receiving paging messages and mobility management. In some embodiments of this application, the first cell can be the terminal device's camping PCell (cPCell), and the second cell can be the terminal device's transmission PCell (tPCell); or, the first cell can be the terminal device's partial PCell (pPCell), and the second cell can be the terminal device's primary PCell (PCell, PCell). The first terminal device can establish a communication connection with the second network device based on the system configuration information of the second cell. This method saves energy consumption of the second network device while ensuring that the communication needs of the first terminal device are met.

[0089] In some embodiments, the first network device and the second network device are different network devices, and the first configuration information is provided by the second network device to the first network device. Before step 710 above, the method further includes: the second network device sending the first configuration information to the first network device. Correspondingly, the first network device receives the first configuration information. Exemplarily, the second network device sends some or all of the information in the first configuration information to the first network device. Correspondingly, the first network device receives some or all of the information in the first configuration information and sends the first configuration information to the first terminal device.

[0090] In some embodiments, the method of this application further includes: a first network device sending system configuration information of the first cell to a first terminal device in the first cell, wherein the system configuration information of the first cell is used to determine at least one of the following: the cell identifier of the first cell, the MIB of the first cell, the SIB of the first cell, and the random access configuration of the first cell. Accordingly, the first terminal device receives the system configuration information of the first cell sent by the first network device. The cell identifier of the first cell refers to a unique identification code assigned to the first cell in the wireless communication network. The first terminal device can identify the first cell based on the cell identifier to avoid confusion. The synchronization signal block (SSB) of the first cell provides time and frequency synchronization information of the first cell. It may include physical signals for synchronization to ensure that the first terminal device and the first network device are aligned in the time and frequency domains. The main information block (MIB) of the first cell may include basic system configuration information of the cell, such as the system frame number. After decoding the MIB, the first terminal device can obtain the necessary parameters to perform the initial access procedure. The system information block (SIB) of the first cell may include more detailed system configuration information, including the cell's bandwidth configuration, resource configuration, access policy, neighbor cell information, etc. SIBs can be SIB1, SIB2, etc., with different types of SIBs carrying different information. For example, the first terminal device can obtain the resource configuration of PRACH RO during random access based on the received system message SIB1 from the cell. The first terminal device can understand the operating status, random access restrictions, and available resources of the first network device based on the information in the SIB, helping it to better perform access and data transmission. The random access configuration of the first cell guides the first terminal device on how to initiate an access request in the network and may include PRACH resource configuration. Using the above method, the first terminal device can access the first cell based on the system configuration information of the first cell to establish a communication connection with the first network device.

[0091] In some embodiments, the first terminal device is a terminal device in a first cell, and also a terminal device in a second cell. In some embodiments, during the process of the first terminal device transitioning from an idle state or a disconnected state (the disconnected state may include an idle state and / or an inactive state) to a connected state, the first terminal device can access either the first cell or the second cell. In some embodiments, when the first terminal device is in a connected state, it can be either a terminal device in the first cell or a terminal device in the second cell. This method allows the first terminal device to flexibly access the first cell and / or the second cell as needed, ensuring data transmission between the first terminal device and the first network device and / or between the first terminal device and the second network device.

[0092] In some embodiments, the first network device can be a network device in an NTN, and the second network device can be a network device in a TN. For example, as shown in Figures 4, 5, or 6, the first network device can be base station 1, the second network device can be base station 2, and the first terminal device can be UE1. Network devices in an NTN can achieve wide network coverage, while network devices in a TN can provide high-speed data transmission. In this method, when the first terminal device needs high-speed data transmission, it can connect to a TN cell (the second cell); when high-speed data transmission is not needed, it can switch back to the more widely covered NTN cell (the first cell). In some embodiments, both the first and second network devices can be network devices in a TN. In some embodiments, both the first and second network devices can be network devices in an NTN.

[0093] In some embodiments, the first cell can be a cell in a 5G network, and the second cell can be a cell in a 6G network. For example, the first cell is an NTN cell in a 5G network, and the second cell is a TN cell in a 6G network. In some embodiments, both the first cell and the second cell can be cells in a 6G network. In some embodiments, both the first cell and the second cell can be cells in a 5G network.

[0094] In summary, the technical solution provided in this application allows the first terminal device to flexibly choose to camp on the first cell and / or access the second cell as needed. Specifically, when the first terminal device only needs to camp on a cell, the second cell of the second network device can be turned off, thereby saving energy consumption of the second network device. When the first terminal device has data transmission needs, it can use the first configuration information sent by the first cell to obtain the system configuration information of the second cell to access the second cell, thereby ensuring that the data transmission needs of the first terminal device are met.

[0095] The first configuration information is explained below.

[0096] The first configuration information is used to determine at least one of the following: (1) whether the first cell can assist in obtaining the system configuration information of other cells; (2) whether the first cell can assist in obtaining the system configuration information of at least one cell included in the first cell list; (3) whether the first cell is associated with the information of cells in the first cell list; (4) the first cell list, which is used to determine the identification information of one or more cells; (5) the first mapping information, which is used to determine the mapping relationship between the coverage area of ​​at least one cell included in the first cell list and the coverage area of ​​at least one cell; (6) the second mapping information, which is used to determine the mapping relationship between the coverage area of ​​at least one cell included in the first cell list and the coverage area of ​​at least one cell. The mapping relationship between time and frequency resources corresponding to each cell, wherein, for any cell in at least one cell, the time and frequency resources corresponding to the cell are used by the terminal device in the cell to transmit request information for obtaining system configuration information of the cell; (7) the index of the first reference signal, the first reference signal is used by the first terminal device to complete time domain synchronization and / or frequency domain synchronization with the second cell; (8) the index of the second reference signal, the second reference signal is used by the first terminal device to determine the spatial filter information used to send signals to the second network device; (9) the index of the third reference signal, the third reference signal is used by the first terminal device to determine the spatial filter information used to receive signals from the second network device; wherein, the first cell list includes the second cell.

[0097] (1) The indication information regarding whether the first cell can assist in obtaining system configuration information of other cells can be used to indicate whether the first cell can assist in obtaining system configuration information of other cells or not. In some embodiments, when the first cell can assist in obtaining system configuration information of other cells, the first terminal device can access other cells based on the first cell. When the first cell cannot assist in obtaining system configuration information of other cells, the first terminal device cannot access other cells based on the first cell. In the above method, the first terminal device can determine whether the first cell has the ability to assist the first terminal device in accessing other cells through the indication information, thereby making a corresponding network access decision.

[0098] (2) The first cell may assist in obtaining system configuration information of at least one cell included in the first cell list. In some embodiments, the first cell list includes one or more cells, and the first cell may assist in obtaining system configuration information of all cells included in the first cell list. The first cell may also assist in obtaining system configuration information of some cells included in the first cell list. This application does not limit this.

[0099] In some embodiments, the first terminal device determines its own cell and whether the cell it is in is included in a first cell list. When the cell it is in is included in the first cell list, and the first cell can assist in obtaining the system configuration information of the cell it is in, the first terminal device can access other cells based on the first cell. For example, if the first terminal device determines that its own cell is a second cell, the second cell is included in the first cell list, and the first cell can assist in obtaining the system configuration information of the second cell, the first terminal device can access the second cell based on the first cell.

[0100] In some embodiments, the cells included in the first cell list can be dynamically adjusted based on factors such as cell coverage, network load, signal strength and quality, and cell fault and maintenance status. For example, the first network device can retain cells whose coverage overlaps with that of the first cell in the first cell list based on changes in the coverage of the first cell, thereby ensuring that the first terminal device can connect to other cells in the first cell list through the first cell. For example, the first network device can dynamically adjust the selection of cells in the first cell list based on the number of users, traffic, and resource usage in different cells to achieve load balancing and improve overall network performance. For example, the first network device monitors the signal strength and quality of each cell in real time, prioritizing cells with high signal strength and good quality in the first cell list, thereby ensuring that the first terminal device can connect to the optimal cell. For example, the first network device can automatically remove faulty or under-maintenance cells from the first cell list based on the fault detection and maintenance status of each cell to avoid interference with the acquisition of system configuration information.

[0101] (3) Whether the first cell is associated with the information of the cells in the first cell list.

[0102] In some embodiments, the information regarding whether a first cell is associated with cells in a first cell list may include information regarding whether the first cell is associated with overlapping covered cells and the identification information of the overlapping covered cells. Whether a first cell is associated with overlapping covered cells refers to whether the first cell has a coverage overlap relationship with other cells. For example, the information regarding whether a first cell is associated with overlapping covered cells may include 1 bit, which is used to indicate whether the first cell has an overlapping coverage relationship with other cells. When an overlapping coverage relationship is indicated, it means that the first cell overlaps with at least one of the other cells; otherwise, it means that the first cell does not overlap with any of the other cells.

[0103] The identification information of overlapping coverage cells refers to the identification information of cells whose coverage overlaps with that of the first cell. Cell identification information is a unique identifier assigned to a cell in a communication system to distinguish different cells. There can be a one-to-one correspondence between cells and their identification information; one cell corresponds to one set of identification information, and different cells correspond to different sets of identification information. The first cell may overlap with one or more cells, and the identification information of overlapping coverage cells may include the individual identification information of each of the one or more cells overlapping with the first cell. The terminal device can determine the overlap coverage situation between the first cell and other cells based on whether the first cell is associated with information about overlapping coverage cells and / or the identification information of the overlapping coverage cells.

[0104] (4) A first cell list, used to determine the identification information of one or more cells, wherein the first cell list includes a second cell. In some embodiments, the coverage areas of the cells included in the first cell list overlap with the coverage area of ​​the first cell. For example, the coverage areas of some cells included in the first cell list overlap with the coverage area of ​​the first cell; or, the coverage areas of all cells included in the first cell list overlap with the coverage area of ​​the first cell.

[0105] In some embodiments, the first cell list may include identification information for one or more cells that overlap with the first cell. Based on the first cell list information, the first terminal device can determine the overlap in coverage between the first cell and other cells.

[0106] (5) First mapping relationship: In some embodiments, the coverage areas of at least one cell can be mapped one-to-one. That is, one cell corresponds to one coverage area, and different cells correspond to different coverage areas. The first terminal device can determine the cell it is in based on its own location information and the first mapping information.

[0107] (6) Second mapping information: In some embodiments, the time-frequency resources of at least one cell can be in a one-to-one mapping relationship. That is, one cell corresponds to a set of time-frequency resources, and different cells correspond to different time-frequency resources. For example, at least one cell may include a second cell, and the time-frequency resources of at least one cell may include a first time-domain resource. Based on the cell it is in and the second mapping information, the first terminal device can determine the first time-frequency resource for sending the first indication information.

[0108] (7) First Reference Signal: The first reference signal may include a synchronization signal. For example, the synchronization signal may include a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). The PSS can provide time-domain synchronization information. After detecting the PSS, the first terminal device can obtain the time reference point of the second network device, thereby performing clock synchronization. The PSS and SSS can also provide frequency-domain synchronization information. By decoding the PSS and SSS, the first terminal device can determine the frequency offset of the second network device and make corresponding corrections.

[0109] (8) Second Reference Signal: Spatial filter information refers to information used in multi-antenna systems to process and optimize the spatial characteristics of signals. A spatial filter is a tool or algorithm used in multi-antenna communication systems (such as MIMO systems) to process and optimize the spatial characteristics of signals. Spatial filter information may include beam information (such as beam direction), channel state information, and signal quality metrics. For example, the second reference signal is used by the first terminal device to determine the beam direction used to transmit signals to the second network device.

[0110] (9) Third reference signal: used by the first terminal device to determine the beam direction used to receive signals from the second network device. In some embodiments, the index of the second reference signal may be the SSB index, and the index of the third reference signal may also be the SSB index.

[0111] In some embodiments, the first network device may send one or more first configuration information messages to the first terminal device; in other words, the first configuration information may include one or more configuration information messages. For example, the first network device may send one first configuration information message to the first terminal device, which can be used to determine indication information and second mapping information for the first cell to assist in obtaining system configuration information of at least one cell included in the first cell list. For example, the first network device may send two first configuration information messages (first configuration information 1 and first configuration information 2) to the first terminal device. First configuration information 1 can be used to determine indication information for the first cell to assist in obtaining system configuration information of at least one cell included in the first cell list, and first configuration information 2 can be used to determine second mapping information. This application does not limit the number of first configuration information messages sent by the first network device.

[0112] The following three specific schemes illustrate examples of how to determine the system configuration information of the second cell based on the first configuration information. The scope of protection of this application is not limited thereto.

[0113] Option 1

[0114] As shown in Figure 8, step 1: The first terminal device sends second indication information to the first network device. The second indication information is used to determine at least one of the following: the location information of the first terminal device; the coverage area of ​​the second cell to which the first terminal device belongs; and the correspondence between the first terminal device and the second cell. Accordingly, the first network device receives the second indication information sent by the first terminal device. In some embodiments, the location information of the first terminal device may include the location coordinates of the first terminal device, or the location information of the first terminal device may include TA (Timing Advance) information. For example, the first terminal device obtains its location information based on GNSS (Global Navigation Satellite System), or the first terminal device obtains its location information based on a positioning algorithm. In some embodiments, the first terminal device belonging to the coverage area of ​​the second cell means that the first terminal device is located within the wireless signal coverage area of ​​the second cell, that is, the first terminal device can receive the signal of the second cell. The correspondence between the first terminal device and the second cell is used to indicate that the first terminal device can access the second cell. When there is no correspondence between the first terminal device and the second cell, the first terminal device cannot access the second cell. It is understood that the first terminal device may have correspondences with multiple cells. When the first network device determines that there is a correspondence between the first terminal device and the second cell, the first network device can configure the first time-frequency resource for the first terminal device. The first time-frequency resource is used to request the system configuration information of the second cell.

[0115] In some embodiments, the correspondence between the first terminal device and the second cell is determined based on at least one of the following: the location information of the first terminal device; and the coverage area of ​​the second cell to which the first terminal device belongs. For example, based on first mapping information (used to determine the mapping relationship between at least one cell and the coverage area of ​​at least one cell) and the location information of the first terminal device, it is determined whether the first terminal device is within the coverage area of ​​the second cell, thereby determining whether a correspondence exists between the first terminal device and the second cell. When the first terminal device is within the coverage area of ​​the second cell, a correspondence is determined between the first terminal device and the second cell. When the first terminal device is not within the coverage area of ​​the second cell, a correspondence is determined not to exist between the first terminal device and the second cell. For example, when the first terminal device is within the coverage area of ​​the second cell, a correspondence is determined between the first terminal device and the second cell. When the first terminal device is not within the coverage area of ​​the second cell, a correspondence is determined not to exist between the first terminal device and the second cell. In the above method, through the second indication information, the first network device can identify the second cell where the first terminal device is located and configure first time-frequency resources for the first terminal device, ensuring that the first terminal device can subsequently access the second cell.

[0116] In some embodiments, the second indication information may be information carried in the uplink channel. For example, the second indication information may be message 3 in the four-step random access process, where message 3 includes the location information of the first terminal device. In some embodiments, the second indication information may be information determined by an uplink reference signal. For example, the second indication information may be determined by selecting a suitable uplink reference signal. For example, the random access configuration of the first cell includes PRACH resource configuration, and the PRACH resource configuration and the SSB of the first cell may have a one-to-one correspondence. One SSB corresponds to one PRACH resource, and different SSBs correspond to different PRACH resources. The first terminal device selects the PRACH resource corresponding to the detected SSB based on the detected SSB. The second indication information can be implicitly determined by the selected PRACH resource. That is, after the first network device successfully receives the PRACH on the PRACH resource, it can know the SSB selected by the first terminal device (i.e., the second indication information implicitly indicates the SSB selected by the first terminal device), thereby determining the location information of the first terminal device. For example, the first network device can determine whether the first terminal device is within the coverage area of ​​the second cell based on the location information of the first terminal device. For example, the first network device can determine whether the first terminal device is within the coverage area of ​​the second cell based on the first mapping information and the location information of the first terminal device. When the first network device determines that the first terminal device is within the coverage area of ​​the second cell, the first network device can configure a first time-frequency resource for the first terminal device, which is used to request system configuration information of the second cell. When the first network device determines that the first terminal device is within the coverage area of ​​the second cell, the first network device can notify the second network device of this information.

[0117] Step 2: The first network device sends first configuration information to the first terminal device. Correspondingly, the first terminal device receives the first configuration information sent by the first network device.

[0118] In some embodiments, the first network device determines that the first terminal device is within the coverage area of ​​the second cell based on the second indication information sent by the first terminal device, and sends first configuration information to the first terminal device. The first configuration information is used to determine first time-frequency resources, the first time-frequency resources are used to send the first indication information, and the first indication information is used to request system configuration information of the second cell. Accordingly, the first terminal device receives the first configuration information sent by the first network device.

[0119] Time-frequency resources include time-domain resources and / or frequency-domain resources. Time-domain resources refer to transmission resources that are divided and managed over time, and can be time slots, symbols, frames, subframes, etc., or time-domain units in future communication systems such as 6G systems. Frequency-domain resources refer to a frequency range used for data transmission, and can be subcarriers, RBs (Resource Blocks), etc., or frequency-domain units in future communication systems such as 6G systems.

[0120] In some embodiments, the first time-frequency resource can be determined based on the second mapping information. For example, the time-frequency resource corresponding to the second cell is determined as the first time-frequency resource. In some embodiments, the random access configuration of the second cell is determined based on the first configuration information, and the first time-frequency resource is the resource determined according to the random access configuration of the second cell. In some embodiments, the first time-frequency resource is on the second cell. In some embodiments, the first time-frequency resource is a PUSCH resource or a PRACH resource. For example, the first time-frequency resource is a PUSCH resource, and the first indication information carried in the PUSCH is used to request the transmission of system configuration information of the second cell. For example, the first time-frequency resource is a PRACH resource, and the PRACH resource can be determined based on the random access configuration of the second cell. The PRACH transmitted on the PRACH resource is used to implicitly determine the first indication information, and the first indication information is used to request the transmission of system configuration information of the second cell. That is, after the second network device successfully receives the PRACH on the PRACH resource, it can know that the first terminal device sent the first indication information (i.e., the PRACH on the PRACH resource requests the transmission of system configuration information of the second cell).

[0121] Step 3: The first terminal device determines the first time-frequency resource based on the first configuration information sent by the first network device, and sends first indication information to the second network device through the first time-frequency resource. The first indication information is used to request the system configuration information of the second cell. Correspondingly, the second network device receives the first indication information sent by the first terminal device.

[0122] In some embodiments, the first terminal device sends an uplink channel to the second network device through a first time-frequency resource. The uplink channel carries first indication information, which is used to request the transmission of system configuration information of the second cell.

[0123] In some embodiments, the first terminal device sends an uplink reference signal to the second network device via a first time-frequency resource. This uplink reference signal is used to request the transmission of system configuration information of the second cell. In other words, the uplink reference signal is used to implicitly determine the first indication information.

[0124] In some embodiments, the first terminal device listens for a second time period after sending the first indication information to see if the second network device sends the second configuration information, starting from a first time period. In some embodiments, if the first terminal device does not receive the second configuration information within the second time period, the first terminal device retransmits the first indication information. The values ​​of the first and second time periods can be configured by the network device, pre-configured, predefined by the standard, or depend on the implementation of the first terminal device; this application does not limit these values.

[0125] The above method can obtain the system configuration information of the second cell by sending a first indication message. Furthermore, it establishes a mechanism to retransmit the first indication message if no response is received from the second network device, thereby enhancing the reliability of the communication connection.

[0126] Step 4: The second network device sends second configuration information to the first terminal device based on the first instruction information sent by the first terminal device. The second configuration information is used to determine the system configuration information of the second cell. Accordingly, the first terminal device receives the second configuration information sent by the second network device.

[0127] In some embodiments, the first configuration information is carried on the PDSCH. In some embodiments, the second network device sends the first configuration information to the first network device. After sending the first configuration information to the first network device, the second network device listens to the first time-frequency resource. In some embodiments, after receiving an indication message from the first network device for listening to the first time-frequency resource, the second network device listens to the first time-frequency resource. In some embodiments, after the second network device detects the first indication message on the first time-frequency resource, it sends second configuration information to the first terminal device, the second configuration information being used to determine the system configuration information of the second cell. Accordingly, the first terminal device receives the second configuration information sent by the second network device.

[0128] In some embodiments, the second network device may transmit second configuration information on a second time-frequency resource. Correspondingly, the first terminal device listens for the second configuration information transmitted by the second network device on the second time-frequency resource. In some embodiments, the second time-frequency resource may be a PDCCH resource.

[0129] In some embodiments, the second configuration information is used to determine the identification information assigned to the first terminal device. The identification information of the terminal device refers to an identifier used to uniquely identify the terminal device within the second cell. There can be a one-to-one correspondence between the terminal device and its identification information; different terminal devices correspond to different identification information in the second cell. For example, the identification information assigned to the first terminal device includes the C-RNTI assigned by the second network device to the first terminal device located within the coverage area of ​​the second cell.

[0130] Option 2

[0131] As shown in Figure 9, step 1: The first network device sends first configuration information to the first terminal device. Correspondingly, the first terminal device receives the first configuration information sent by the first network device.

[0132] In some embodiments, the first configuration information is used to determine at least one of the following: indication information on whether the first cell can assist in obtaining system configuration information of other cells; indication information on whether the first cell can assist in obtaining system configuration information of at least one cell included in the first cell list; whether the first cell is associated with information of cells in the first cell list; the first cell list; first mapping information; second mapping information; index of the first reference signal; index of the second reference signal; and index of the third reference signal.

[0133] For example, the first configuration information is used to determine that the first cell can assist in obtaining system configuration information of at least one cell included in the first cell list. After obtaining the first configuration information, the first terminal device sends second indication information to the first network device.

[0134] Step 2: The first terminal device sends second indication information to the first network device. The second indication information is used to determine at least one of the following: the location information of the first terminal device; the coverage area of ​​the second cell to which the first terminal device belongs; and the correspondence between the first terminal device and the second cell. Accordingly, the first network device receives the second indication information sent by the first terminal device.

[0135] For details regarding step 2 above, please refer to the relevant content of step 1 in scheme 1 above.

[0136] Step 3: The first network device sends third configuration information to the first terminal device. This third configuration information includes handover command configuration information, which is used to obtain the system configuration information of the second cell. Correspondingly, the first terminal device receives the third configuration information sent by the first network device.

[0137] In some embodiments, the first network device determines whether the first terminal device is within the coverage area of ​​the second cell based on the second indication information. When the first network device determines that the first terminal device is within the coverage area of ​​the second cell, the first network device sends third configuration information to the first terminal device.

[0138] In some embodiments, the handover command configuration information may include system configuration information of the second cell, handover instructions, cell identifier of the second cell, etc., to instruct the first terminal device to hand over to the second cell.

[0139] In some embodiments, the third configuration information is used to determine identification information assigned to the first terminal device. For example, the identification information assigned to the first terminal device includes the C-RNTI assigned by the second network device to the first terminal device located within the coverage area of ​​the second cell.

[0140] In some embodiments, the first terminal device initiates a random access procedure to the second cell based on third configuration information. In some embodiments, the third configuration information is used to obtain system configuration information of the second cell, including random access configuration information. The first terminal device initiates a random access procedure to the second cell based on the random access configuration information. Through this method, the first terminal device can ensure that its random access request meets the requirements of the second cell, thereby successfully completing the handover between cells.

[0141] In some embodiments, the first terminal device listens to the synchronization channel or control channel transmitted by the second cell based on third configuration information. The synchronization channel refers to a wireless channel or reference signal used to transmit synchronization signals, helping the first terminal device to synchronize time and frequency with the second cell, thereby achieving accurate signal reception and transmission. The control channel carries critical information such as resource scheduling, paging, and control commands. By listening to the downlink synchronization channel and control channel of the second cell, the first terminal device can obtain important network commands in a timely manner.

[0142] Option 3

[0143] As shown in Figure 10, step 1: The first network device sends first configuration information to the first terminal device. Correspondingly, the first terminal device receives the first configuration information sent by the first network device.

[0144] In some embodiments, the first network device broadcasts first configuration information in the first cell. More information about broadcast transmission methods can be found below.

[0145] In some embodiments, the first configuration information may include first mapping information and second mapping information. The first mapping information is used to determine the coverage area of ​​each of the multiple cells, and the second mapping information is used to determine the time-frequency resources corresponding to each of the multiple cells for requesting system configuration information of the cell. These time-frequency resources include first time-frequency resources used to request system configuration information of the second cell. For example, after determining that it is within the coverage area of ​​the second cell based on its own location and the first mapping information, the first terminal device then determines the first time-frequency resources based on the second mapping information. When there is a need to access the network, it sends first indication information to the second network device through the first time-frequency resources to request the activation of the second cell.

[0146] Step 2: The first terminal device determines the first time-frequency resource based on the first configuration information sent by the first network device, and sends first indication information to the second network device through the first time-frequency resource. The first indication information is used to request the system configuration information of the second cell. Correspondingly, the second network device receives the first indication information sent by the first terminal device.

[0147] For details regarding step 2 above, please refer to step 3 in scheme 1 above.

[0148] Furthermore, in some embodiments, the first time-frequency resource is determined based on at least one of the following: first mapping information, which is used to determine the mapping relationship between at least one cell and the coverage area of ​​at least one cell; configuration information of the time-frequency resource corresponding to at least one cell; second mapping information, which is used to determine the mapping relationship between at least one cell and the time-frequency resource corresponding to at least one cell, wherein, for any one of the at least one cells, the time-frequency resource corresponding to the cell is used by a terminal device within the cell to transmit request information for obtaining system configuration information of the cell; and a correspondence between the first terminal device and a second cell; wherein, at least one cell includes a second cell.

[0149] The configuration information of time-frequency resources corresponding to at least one cell refers to the specific parameter configuration of the frequency domain resources and time domain resources associated with at least one cell, which may include information such as frequency block selection, time slot arrangement, bandwidth allocation, and modulation and coding schemes. This configuration information is used to indicate the wireless channel characteristics of the time domain resources that the first terminal device can use when communicating within the cell, to ensure that it can correctly transmit the first indication information. In some embodiments, the configuration information of time-frequency resources corresponding to a cell can be dynamically adjusted according to the cell's load, network topology, and user needs to better utilize wireless resources.

[0150] In some embodiments, the first terminal device obtains the first mapping information based on first configuration information. In some embodiments, the first terminal device obtains the first mapping information based on configuration information sent by a first network device. In some embodiments, the first terminal device obtains the first mapping information based on configuration information sent by a second network device. In some embodiments, the first terminal device obtains the first mapping information itself.

[0151] In some embodiments, a first network device sends configuration information, including first mapping information, to a first terminal device. Accordingly, the first terminal device receives the configuration information sent by the first network device. In some embodiments, a second network device sends configuration information, including first mapping information, to the first terminal device. Accordingly, the first terminal device receives the configuration information sent by the second network device.

[0152] In some embodiments, the first terminal device can independently identify and infer the first mapping information by listening to wireless signals, actively scanning surrounding cells, utilizing historical connection records and location information, or analyzing the characteristics of received signals through algorithms. This process does not depend on the first network device or the second network device; the first terminal device can determine the first mapping information using its own capabilities and methods.

[0153] In some embodiments, the first terminal device obtains the second mapping information based on the first configuration information. In some embodiments, the first terminal device obtains the second mapping information based on the configuration information sent by the first network device. In some embodiments, the first terminal device obtains the second mapping information based on the configuration information sent by the second network device. In some embodiments, the first terminal device obtains the second mapping information itself.

[0154] In some embodiments, a first network device sends configuration information, including second mapping information, to a first terminal device. Accordingly, the first terminal device receives the configuration information sent by the first network device. In some embodiments, a second network device sends configuration information, including second mapping information, to the first terminal device. Accordingly, the first terminal device receives the configuration information sent by the second network device.

[0155] In some embodiments, the first terminal device can independently identify the mapping relationship of time-frequency resources corresponding to at least one cell by self-monitoring and analyzing surrounding signals. For example, the first terminal device can actively scan the wireless signals in its environment to capture control channel information from different cells, such as the cell's System Information Block (SIB), which may contain the time-frequency resource configuration corresponding to the cell. For example, the first terminal device can decode broadcast information received from surrounding cells to obtain system configuration information including frequency, time slots, and other transmission parameters. This information can help the first terminal device understand the resource mapping relationship between cells. This process does not rely on a first network device or a second network device; the first terminal device can independently infer the mapping relationship of time-frequency resources corresponding to at least one cell, and then use this information to send indication information to obtain the cell's system configuration information.

[0156] In the above method, the first terminal device can flexibly determine the first mapping information and the second mapping information based on the first configuration information, the configuration information sent by the first network device, and the configuration information sent by the second network device.

[0157] Step 3: The second network device sends second configuration information to the first terminal device based on the first instruction information sent by the first terminal device. The second configuration information is used to determine the system configuration information of the second cell. Accordingly, the first terminal device receives the second configuration information sent by the second network device.

[0158] For details regarding step 3 above, please refer to step 4 in scheme 1 above.

[0159] For schemes 1 to 3 above, the following steps may also be included:

[0160] The second network device sends fourth configuration information to the first network device. This fourth configuration information determines that the first configuration information is invalid. After obtaining the fourth configuration information, the first network device no longer provides the first configuration information to terminal devices in the first cell. Correspondingly, the first network device receives the fourth configuration information sent by the second network device. For example, the fourth configuration information can be used to indicate that the first time-frequency resource is invalid, in which case the first network device will no longer provide the first time-frequency resource to the first terminal device in the first cell, and the second network device will not need to listen for the first indication information on the first time-frequency resource. For example, the fourth configuration information can be used to instruct the first cell to cancel assisting in obtaining system configuration information from other cells, in which case the first terminal device cannot access other cells through the first cell. With this method, when the network environment of the second cell changes, the fourth configuration information can promptly report the invalidity of the first configuration information to the first network device.

[0161] In addition to the above-described solutions, in some embodiments, the first configuration information is used to determine the system configuration information of the second cell. For example, the first configuration information includes the system configuration information of the second cell. In this method, the first configuration information is directly used to determine the system configuration information of the second cell. Using the above method, the first terminal device can directly obtain the system configuration information of the second cell from the first configuration information, thereby achieving rapid access to the second cell.

[0162] It should be understood that in the various embodiments of this application, the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0163] It should be noted that, without conflict, the various embodiments and / or technical features described in this application can be arbitrarily combined with each other, and the resulting technical solutions should also fall within the protection scope of this application.

[0164] The following describes two different ways to send the first configuration information.

[0165] Sending method 1: The first configuration information is sent through a dedicated channel between the first terminal device and the first network device.

[0166] In some embodiments, the first terminal device camps on the first cell and, when it has a network access requirement (i.e., a data transmission requirement), sends second indication information to the first network device. The first network device determines, based on the second indication information sent by the first terminal device, that the first terminal device is within the coverage area of ​​the second cell. The first network device then sends first configuration information to the first terminal device. Based on this first configuration information, the first terminal device accesses the second cell. For example, after determining that the first terminal device is also within the coverage area of ​​another cell besides the first cell, such as the second cell, the first network device sends configuration information related to the second cell, such as the first configuration information, to the first terminal device.

[0167] Sending method 2: The first configuration information is broadcast to the terminal devices in the first cell, and the terminal devices in the first cell include the first terminal device.

[0168] In some embodiments, the first network device broadcasts a list of cells and time-frequency resources corresponding to multiple cells in the cell list for requesting system configuration information of the cells to all terminal devices (including the first terminal device) in the first cell. These time-frequency resources include a first time-frequency resource used to request system configuration information (i.e., second mapping information) of the second cell. For example, after determining that it is within the coverage area of ​​the second cell, the first terminal device, when it needs network access, requests the second network device to open the second cell via the first time-frequency resource.

[0169] The above-described transmission method 1, since the first network device needs to transmit data with the first terminal device, is suitable for scenarios where the first terminal device and the first network device establish a communication connection. The first configuration information is transmitted point-to-point through a dedicated channel between the first terminal device and the first network device. This method ensures the security and privacy of data transmission because the first configuration information is only sent to a specific first terminal device, avoiding unnecessary information leakage. Furthermore, dedicated channels typically offer higher transmission rates and lower latency, making them suitable for scenarios with high real-time and reliability requirements.

[0170] In the above-described transmission method 2, since the first configuration information is broadcast to all terminal devices (including the first terminal device) in the first cell, the first terminal device does not need to establish a communication connection with the first network device. This method allows all terminal devices within the first cell to receive the first configuration information. This method can efficiently and quickly transmit the first configuration information to multiple terminal devices. Terminal devices with data transmission needs among the multiple terminal devices can determine the system configuration information of the second cell based on the first configuration information, thereby accessing the second cell.

[0171] For the two different transmission methods mentioned above, as shown in Figures 11 to 13, this application illustrates flowcharts for opening the second cell under transmission method 1 and transmission method 2, respectively. Figures 11 and 12 correspond to transmission method 1, and Figure 13 corresponds to transmission method 2. In Figures 11 to 13, an example is used where the first network device is an NTN base station, the first cell is an NTN cell, the second network device is a TN base station, the second cell is a TN cell, and the first terminal device is a 6G UE.

[0172] As shown in Figure 11, corresponding to the above scheme 1, this application may include one or more of the following steps.

[0173] (1) The TN base station sends a WUS (Wake Up Signal) configuration to the NTN base station. For example, the WUS configuration is used to determine a first time-frequency resource, which is used to request the activation of the TN cell (i.e., the second cell).

[0174] (2) The NTN base station sends an ACK (Acknowledgment) to the TN base station to indicate that the WUS configuration has been successfully received.

[0175] (3) The TN cell enters energy-saving mode, such as the TN base station being shut down, to save energy. In some embodiments, the TN base station listens to the WUS via the first time-frequency resource after receiving the ACK sent by the NTN base station; or, the TN base station listens to the WUS via the first time-frequency resource after the TN cell is shut down. It is understood that the TN base station shutdown or TN cell shutdown here refers to the downlink shutdown. In some embodiments, the TN base station listens to the WUS via the first time-frequency resource only after step (7) below. It is understood that the TN base station shutdown or TN cell shutdown at this time can refer to both the downlink and uplink being shut down.

[0176] (4) The NTN base station indicates through system messages that it has the capability to open a TN base station, or in other words, the NTN base station indicates through system messages that it can assist the UE in accessing the TN base station. For example, the NTN base station periodically sends system messages, and the UE determines that it can access the TN base station through the NTN base station after receiving the system message.

[0177] (5) The UE sends a UL to the NTN base station, which is used by the NTN base station to determine that the UE belongs to the coverage area of ​​the TN base station. For example, the UE camps in the first cell and sends a UL (i.e., second indication information) to the NTN base station when it needs network access. Based on this second indication information, the NTN base station determines the UE's location information and, based on this location information, determines that the UE belongs to the coverage area of ​​the TN base station. For example, the NTN base station obtains mapping information between multiple TN cells on the ground and the coverage area of ​​each TN cell, and determines the TN cell (i.e., the second cell) to which the UE belongs based on the UE's location information.

[0178] (6) The NTN base station instructs the TN base station to listen to WUS. Understandably, the TN base station is the base station of the TN cell (i.e., the second cell) to which the UE belongs. For example, after determining that it will send WUS configuration information to the UE, the NTN base station sends an indication message to the TN base station that the UE wants to access the TN cell (e.g., indicating that it needs to listen to WUS) to wake up the TN cell.

[0179] (7) The TN base station sends an ACK to the NTN base station to inform the NTN base station that it has successfully received the instruction information that WUS needs to be monitored.

[0180] (8) The NTN base station sends WUS configuration to the UE. For example, the NTN base station sends first configuration information to the UE, which is used to determine the first time-frequency resource. The first time-frequency resource is used to send the WUS corresponding to the TN cell. It is understood that, in the presence of steps (6) and (7), step (8) can be executed before (6), after (7), or during the execution of (6) and (7), without affecting the substance of this scheme.

[0181] (9) The UE sends a WUS to the TN base station. For example, after receiving the first configuration information, the UE sends the WUS (i.e., the first indication information) corresponding to the TN cell to the TN base station through the first time-frequency resource. The WUS is used to request the opening of the second cell.

[0182] (10) TN base station is turned on. In some embodiments, after the TN base station detects the WUS sent by the UE, the TN base station is turned on to provide communication services to the UE. In some embodiments, if step (6) or (7) is present, the TN base station is turned on to provide communication services to the UE after step (6) or (7).

[0183] (11) The TN base station is working normally. For example, the TN base station sends the system configuration information of the second cell (i.e., the second configuration information) to the UE, that is, the second cell is turned on (i.e. the TN base station is turned on).

[0184] (12) The TN base station sends a request to the NTN base station to cancel the WUS configuration. For example, the TN base station sends fourth configuration information to the NTN base station, which is used to determine that the WUS information is invalid.

[0185] (13) The NTN base station sends an ACK to the TN base station to report that it has successfully received the indication that the WUS configuration has been cancelled.

[0186] (14) The TN base station stops listening to WUS. For example, the TN base station no longer listens to WUS on the first time-frequency resource.

[0187] As shown in Figure 12, corresponding to the above scheme 2, this application may include one or more of the following steps.

[0188] (1) The TN base station requests the NTN base station to assist in opening the TN cell (i.e., the second cell).

[0189] (2) The NTN base station sends an ACK to the TN base station to indicate that the request has been successfully received.

[0190] (3) TN cells enter energy-saving mode, such as TN base stations being shut down, in order to save energy consumption.

[0191] (4) The NTN base station indicates through system messages that it has the capability to open a TN base station, or in other words, the NTN base station indicates through system messages that it can assist the UE in accessing the TN base station. For example, the NTN base station periodically sends system messages, and the UE determines that it can access the TN base station through the NTN base station after receiving the system message.

[0192] (5) The UE sends a UL to the NTN base station, which is used by the NTN base station to determine that the UE belongs to the coverage area of ​​the TN base station. For example, the UE camps in the first cell and sends a UL (i.e., second indication information) to the NTN base station when it needs network access. Based on this second indication information, the NTN base station determines the UE's location information and, based on this location information, determines that the UE belongs to the coverage area of ​​the TN base station. For example, the NTN base station obtains mapping information between multiple TN cells on the ground and the coverage area of ​​each TN cell, and determines the TN cell (i.e., the second cell) to which the UE belongs based on the UE's location information.

[0193] (6) The NTN base station instructs the TN base station to turn on.

[0194] (7) The TN base station sends an ACK to the NTN base station to report to the NTN base station that it has successfully received the instruction information that the cell needs to be opened.

[0195] (8) The TN base station is turned on. Step (8) can be performed after (6), after (7), or simultaneously with (7), without affecting the substance of this solution. For example, the TN base station is working normally.

[0196] (9) The NTN base station sends a handover command to the UE to switch from the NTN cell to the TN cell. For example, the NTN base station sends third configuration information to the UE, which includes the handover command.

[0197] (10) The UE initiates a random access procedure to the TN base station, or the UE listens to the SSB or downlink channel sent by the TN base station. For example, the UE sends a PRACH to the TN base station based on a handover command, or the UE listens to the PDCCH of the TN cell based on a handover command.

[0198] (11) The TN base station sends a request to the NTN base station to cancel the assisted opening of the TN cell. For example, the TN base station sends fourth configuration information to the NTN base station, which is used to cancel the request to cancel the assisted opening of the TN cell.

[0199] (12) The NTN base station sends an ACK to the TN base station to report that it has successfully received the instruction to cancel the assisted opening of the TN cell.

[0200] As shown in Figure 13, corresponding to the above scheme 3, this application may include one or more of the following steps.

[0201] (1) The TN base station sends a WUS configuration to the NTN base station. For example, the WUS configuration is used to determine a first time-frequency resource, which is used to request the opening of the TN cell (i.e., the second cell).

[0202] (2) The NTN base station sends an ACK to the TN base station to indicate that the WUS configuration has been successfully received.

[0203] (3) TN cells enter energy-saving mode, such as TN base stations being shut down, to save energy. For example, after receiving an ACK from an NTN base station, the TN base station listens for WUS via the first time-frequency resource; or, the TN base station listens for WUS via the first time-frequency resource after the TN cell is shut down. It is understood that the shutdown of the TN base station or the TN cell here refers to the shutdown of the downlink.

[0204] (4) The NTN base station broadcasts the WUS configuration via system messages. For example, the NTN base station periodically sends system messages containing first configuration information, which is used to determine a cell list and the WUS configuration corresponding to each cell in the cell list. After receiving the system message, the UE determines a list of cells overlapping with the NTN base station's coverage and the WUS configuration corresponding to each cell in the cell list.

[0205] (5) The UE determines that it belongs to the coverage area of ​​the TN base station. For example, the UE determines its own location information based on GNSS or a positioning method, and determines that it belongs to the coverage area of ​​the TN base station based on the location information. For example, the UE obtains the mapping relationship information between multiple TN cells on the ground and the coverage area of ​​each TN cell, and determines the TN cell (i.e., the second cell) to which the UE belongs based on its own location information.

[0206] (6) The UE sends a WUS to the TN base station. For example, after receiving the first configuration information, the UE determines the first time-frequency resource corresponding to the TN cell (i.e., the second cell) to which the UE belongs, and then sends the WUS (i.e., the first indication information) corresponding to the TN cell to the TN base station through the first time-frequency resource. The WUS is used to request the opening of the second cell.

[0207] (7) TN base station is turned on. For example, after the TN base station detects the WUS sent by the UE, the TN base station turns on to provide communication services to the UE.

[0208] (8) The TN base station is working normally. For example, the TN base station sends the system configuration information of the second cell (i.e., the second configuration information) to the UE, that is, the second cell is turned on (i.e. the TN base station is turned on).

[0209] (9) The TN base station sends a request to the NTN base station to cancel the WUS configuration. For example, the TN base station sends fourth configuration information to the NTN base station, which is used to determine that the WUS information is invalid.

[0210] (10) The NTN base station sends an ACK to the TN base station to report that it has successfully received the indication that the WUS configuration has been cancelled.

[0211] (11) The TN base station stops listening to WUS. For example, the TN base station no longer listens to WUS on the first time-frequency resource.

[0212] As mentioned above, in the above scheme, the order of the process numbers does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0213] The above embodiments only describe the technical solution provided in this application from the perspective of the interaction between at least two devices, namely the first terminal device, the first network device, and the second network device. The steps performed by the first terminal device described above can be implemented independently as a wireless communication method on the first terminal device side. The steps performed by the first network device described above can be implemented independently as a wireless communication method on the first network device side. The steps performed by the second network device described above can be implemented independently as a wireless communication method on the second network device side.

[0214] The following are embodiments of the apparatus described in this application, which can be used to execute the embodiments of the method described in this application. For details not disclosed in the apparatus embodiments of this application, please refer to the embodiments of the method described in this application.

[0215] Please refer to Figure 14, which shows a block diagram of a wireless communication device according to an embodiment of this application. This device has the function of implementing the above-described wireless communication method; the function can be implemented in hardware or by hardware executing corresponding software. This device can be the first terminal device described above, or it can be disposed within the first terminal device. As shown in Figure 14, the device 1400 may include: a receiving module 1410.

[0216] The receiving module 1410 is used to receive first configuration information sent by the first network device, wherein the first configuration information is used to obtain the system configuration information of the second cell.

[0217] In some embodiments, the first configuration information is used to determine a first time-frequency resource, the first time-frequency resource is used to send first indication information, and the first indication information is used to request system configuration information of the second cell.

[0218] In some embodiments, the device 1400 further includes a transmitting module (not shown in FIG14).

[0219] The sending module is used to send second indication information to the first network device, the second indication information being used to determine at least one of the following: the location information of the first terminal device; the coverage area of ​​the second cell to which the first terminal device belongs; and the correspondence between the first terminal device and the second cell.

[0220] In some embodiments, the first time-frequency resource is determined based on at least one of the following: first mapping information, which is used to determine a mapping relationship between at least one cell and the coverage area of ​​the at least one cell; configuration information of the time-frequency resource corresponding to the at least one cell; second mapping information, which is used to determine a mapping relationship between at least one cell and the time-frequency resource corresponding to the at least one cell, wherein, for any one of the at least one cells, the time-frequency resource corresponding to the cell is used by a terminal device within the cell to transmit request information for obtaining system configuration information of the cell; a correspondence between the first terminal device and the second cell; wherein, the at least one cell includes the second cell.

[0221] In some embodiments, the device 1400 further includes a processing module (not shown in FIG14).

[0222] The processing module is configured to obtain the first mapping information based on the first configuration information; or, obtain the first mapping information based on the configuration information sent by the first network device; or, obtain the first mapping information based on the configuration information sent by the second network device; or, obtain the first mapping information itself.

[0223] In some embodiments, the processing module is configured to obtain the second mapping information based on the first configuration information; or, obtain the second mapping information based on the configuration information sent by the first network device; or, obtain the second mapping information based on the configuration information sent by the second network device; or, obtain the second mapping information itself.

[0224] In some embodiments, the processing module is configured to determine the correspondence between the first terminal device and the second cell based on at least one of the following: the location information of the first terminal device; the coverage area of ​​the second cell to which the first terminal device belongs.

[0225] In some embodiments, the sending module is configured to send first indication information to the second network device through the first time-frequency resource, the first indication information being used to request system configuration information of the second cell.

[0226] In some embodiments, the receiving module 1410 is used to receive second configuration information sent by the second network device, the second configuration information being used to determine the system configuration information of the second cell.

[0227] In some embodiments, the second configuration information is used to determine the identification information assigned to the first terminal device.

[0228] In some embodiments, the receiving module 1410 is used to receive third configuration information sent by the first network device, the third configuration information including handover command configuration information, the handover command configuration information being used to obtain system configuration information of the second cell.

[0229] In some embodiments, the third configuration information is used to determine the identification information assigned to the first terminal device.

[0230] In some embodiments, the sending module is used to initiate a random access procedure to the second cell based on the third configuration information; or, the receiving module 1410 is used to listen to the synchronization channel or control channel sent by the second cell based on the third configuration information.

[0231] In some embodiments, the sending module is configured to send second indication information to the first network device, the second indication information being used to determine at least one of the following: the location information of the first terminal device; the first terminal device belonging to the coverage area of ​​the second cell;

[0232] The first terminal device corresponds to the second cell.

[0233] In some embodiments, the first configuration information is used to determine at least one of the following: indication information on whether the first cell can assist in obtaining system configuration information of other cells; indication information on whether the first cell can assist in obtaining system configuration information of at least one cell included in the first cell list; whether the first cell is associated with information of cells in the first cell list; a first cell list, the first cell list being used to determine the identification information of one or more cells; first mapping information, the first mapping information being used to determine the mapping relationship between the coverage area of ​​at least one cell included in the first cell list and the at least one cell; and second mapping information, the second mapping information being used to determine the time corresponding to the at least one cell included in the first cell list and the at least one cell. The mapping relationship between frequency resources, wherein, for any one of the at least one cells, the time-frequency resources corresponding to the cell are used by the terminal device within the cell to transmit request information for obtaining system configuration information of the cell; an index of a first reference signal, the first reference signal being used by the first terminal device to complete time-domain synchronization and / or frequency-domain synchronization with the second cell; an index of a second reference signal, the second reference signal being used by the first terminal device to determine the spatial filter information used to send signals to the second network device; an index of a third reference signal, the third reference signal being used by the first terminal device to determine the spatial filter information used to receive signals from the second network device; wherein, the first cell list includes the second cell.

[0234] In some embodiments, the first configuration information is sent via a dedicated channel between the first terminal device and the first network device; or, the first configuration information is broadcast to terminal devices in the first cell, including the first terminal device.

[0235] In some embodiments, the system configuration information of the second cell is used to determine at least one of the following: the SSB of the second cell, the cell identifier of the second cell, the MIB of the second cell, the SIB of the second cell, and the random access configuration of the second cell.

[0236] In some embodiments, the receiving module 1410 is used to obtain system configuration information of the first cell, wherein the system configuration information of the first cell is used to determine at least one of the following: the cell identifier of the first cell, the MIB of the first cell, the SIB of the first cell, and the random access configuration of the first cell.

[0237] In some embodiments, the first network device is a network device in a non-terrestrial network (NTN), and the second network device is a network device in a terrestrial network (TN); or, both the first network device and the second network device are network devices in a TN; or, both the first network device and the second network device are network devices in an NTN.

[0238] In some embodiments, the first terminal device is a terminal device in the first cell, and the first terminal device is a terminal device in the second cell.

[0239] Please refer to Figure 15, which shows a block diagram of a wireless communication device according to another embodiment of this application. This device has the function of implementing the above-described wireless communication method; the function can be implemented in hardware or by hardware executing corresponding software. This device can be the first network device described above, or it can be disposed within the first network device. As shown in Figure 15, the device 1500 may include: a transmitting module 1510.

[0240] The sending module 1510 is used to send first configuration information to the first terminal device in the first cell, wherein the first configuration information is used to obtain the system configuration information of the second cell.

[0241] In some embodiments, the first configuration information is used to determine a first time-frequency resource, the first time-frequency resource is used to send first indication information, and the first indication information is used to request system configuration information of the second cell.

[0242] In some embodiments, the device 1500 further includes a receiving module (not shown in FIG15).

[0243] The receiving module is configured to receive second indication information sent by the first terminal device, the second indication information being used to determine at least one of the following: the location information of the first terminal device; the coverage area of ​​the second cell to which the first terminal device belongs; and the correspondence between the first terminal device and the second cell.

[0244] In some embodiments, the first time-frequency resource is determined based on at least one of the following: first mapping information, which is used to determine a mapping relationship between at least one cell and the coverage area of ​​the at least one cell; configuration information of the time-frequency resource corresponding to the at least one cell; second mapping information, which is used to determine a mapping relationship between at least one cell and the time-frequency resource corresponding to the at least one cell, wherein, for any one of the at least one cells, the time-frequency resource corresponding to the cell is used by a terminal device within the cell to transmit request information for obtaining system configuration information of the cell; a correspondence between the first terminal device and the second cell; wherein, the at least one cell includes the second cell.

[0245] In some embodiments, the sending module 1510 is used to send third configuration information to the first terminal device. The third configuration information includes handover command configuration information, which is used to obtain system configuration information of the second cell.

[0246] In some embodiments, the third configuration information is used to determine the identification information assigned to the first terminal device.

[0247] In some embodiments, the receiving module is configured to receive second indication information sent by the first terminal device, the second indication information being configured to determine at least one of the following: the location information of the first terminal device; the first terminal device belonging to the coverage area of ​​the second cell; the first terminal device corresponding to the second cell.

[0248] In some embodiments, the first configuration information is used to determine at least one of the following: indication information on whether the first cell can assist in obtaining system configuration information of other cells; indication information on whether the first cell can assist in obtaining system configuration information of at least one cell included in the first cell list; whether the first cell is associated with information of cells in the first cell list; a first cell list, the first cell list being used to determine the identification information of one or more cells; first mapping information, the first mapping information being used to determine the mapping relationship between the coverage area of ​​at least one cell included in the first cell list and the at least one cell; and second mapping information, the second mapping information being used to determine the time corresponding to the at least one cell included in the first cell list and the at least one cell. The mapping relationship between frequency resources, wherein, for any one of the at least one cells, the time-frequency resources corresponding to the cell are used by the terminal device within the cell to transmit request information for obtaining system configuration information of the cell; an index of a first reference signal, the first reference signal being used by the first terminal device to complete time-domain synchronization and / or frequency-domain synchronization with the second cell; an index of a second reference signal, the second reference signal being used by the first terminal device to determine the spatial filter information used to send signals to the second network device; an index of a third reference signal, the third reference signal being used by the first terminal device to determine the spatial filter information used to receive signals from the second network device; wherein, the first cell list includes the second cell.

[0249] In some embodiments, the first configuration information is sent via a dedicated channel between the first terminal device and the first network device; or, the first configuration information is broadcast to terminal devices in the first cell, including the first terminal device.

[0250] In some embodiments, the system configuration information of the second cell is used to determine at least one of the following: the signal block SSB of the second cell, the cell identifier of the second cell, the MIB of the second cell, the SIB of the second cell, and the random access configuration of the second cell.

[0251] In some embodiments, the sending module 1510 is used to send system configuration information of the first cell, wherein the system configuration information of the first cell is used to determine at least one of the following: the cell identifier of the first cell, the MIB of the first cell, the SIB of the first cell, and the random access configuration of the first cell.

[0252] In some embodiments, the first configuration information is provided by the second network device to the first network device.

[0253] In some embodiments, the receiving module is configured to receive fourth configuration information sent by the second network device, the fourth configuration information being used to determine that the first configuration information is invalid; wherein, after obtaining the fourth configuration information, the first network device no longer provides the first configuration information to the terminal devices in the first cell.

[0254] In some embodiments, the first network device is a network device in a non-terrestrial network (NTN), and the second network device is a network device in a terrestrial network (TN); or, both the first network device and the second network device are network devices in a TN; or, both the first network device and the second network device are network devices in an NTN.

[0255] In some embodiments, the first terminal device is a terminal device in the first cell, and the first terminal device is a terminal device in the second cell.

[0256] Please refer to Figure 16, which shows a block diagram of a wireless communication device according to another embodiment of this application. This device has the function of implementing the above-described wireless communication method; the function can be implemented in hardware or by hardware executing corresponding software. This device can be the second network device described above, or it can be disposed within a second network device. As shown in Figure 16, the device 1600 may include a transmitting module 1610.

[0257] The sending module 1610 is used to send first configuration information to the first network device, wherein the first configuration information is used to obtain the system configuration information of the second cell.

[0258] The sending module 1610 is used to send second configuration information to the first terminal device in the first cell, the second configuration information being used to determine the system configuration information of the second cell.

[0259] In some embodiments, the second configuration information is used to determine the identification information assigned to the first terminal device.

[0260] In some embodiments, the first configuration information is used to determine a first time-frequency resource, the first time-frequency resource is used to send first indication information, and the first indication information is used to request system configuration information of the second cell.

[0261] In some embodiments, the first time-frequency resource is determined based on at least one of the following: first mapping information, which is used to determine a mapping relationship between at least one cell and the coverage area of ​​the at least one cell; configuration information of the time-frequency resource corresponding to the at least one cell; second mapping information, which is used to determine a mapping relationship between at least one cell and the time-frequency resource corresponding to the at least one cell, wherein, for any one of the at least one cells, the time-frequency resource corresponding to the cell is used by a terminal device within the cell to transmit request information for obtaining system configuration information of the cell; a correspondence between the first terminal device and the second cell; wherein, the at least one cell includes the second cell.

[0262] In some embodiments, the device 1600 further includes a receiving module (not shown in FIG16).

[0263] The receiving module is used to receive first indication information sent by the first terminal device, the first indication information being used to request system configuration information of the second cell.

[0264] In some embodiments, the first configuration information is used to determine at least one of the following: indication information on whether the first cell can assist in obtaining system configuration information of other cells; indication information on whether the first cell can assist in obtaining system configuration information of at least one cell included in the first cell list; whether the first cell is associated with information of cells in the first cell list; a first cell list, the first cell list being used to determine the identification information of one or more cells; first mapping information, the first mapping information being used to determine the mapping relationship between the coverage area of ​​at least one cell included in the first cell list and the at least one cell; and second mapping information, the second mapping information being used to determine the time corresponding to the at least one cell included in the first cell list and the at least one cell. The mapping relationship between frequency resources, wherein, for any one of the at least one cells, the time-frequency resources corresponding to the cell are used by the terminal device within the cell to transmit request information for obtaining system configuration information of the cell; an index of a first reference signal, the first reference signal being used by the first terminal device to complete time-domain synchronization and / or frequency-domain synchronization with the second cell; an index of a second reference signal, the second reference signal being used by the first terminal device to determine the spatial filter information used to send signals to the second network device; an index of a third reference signal, the third reference signal being used by the first terminal device to determine the spatial filter information used to receive signals from the second network device; wherein, the first cell list includes the second cell.

[0265] In some embodiments, the system configuration information of the second cell is used to determine at least one of the following: the SSB of the second cell, the cell identifier of the second cell, the MIB of the second cell, the SIB of the second cell, and the random access configuration of the second cell.

[0266] In some embodiments, the sending module 1610 is used to send fourth configuration information to the first network device, the fourth configuration information being used to determine that the first configuration information is invalid; wherein, after obtaining the fourth configuration information, the first network device no longer provides the first configuration information to the terminal devices in the first cell.

[0267] In some embodiments, the first network device is a network device in a non-terrestrial network (NTN), and the second network device is a network device in a terrestrial network (TN); or, both the first network device and the second network device are network devices in a TN; or, both the first network device and the second network device are network devices in an NTN.

[0268] In some embodiments, the first terminal device is a terminal device in the first cell, and the first terminal device is a terminal device in the second cell.

[0269] It should be noted that the above embodiments only illustrate the division of the above functional modules when implementing the device. In actual applications, the above functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0270] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here. For details not described in detail in the apparatus embodiments, please refer to the above method embodiments.

[0271] Please refer to Figure 17, which shows a schematic diagram of a communication device provided in one embodiment of this application. The communication device 1700 may include a processor 1701, a transceiver 1702, and a memory 1703. The transceiver 1702 is used to implement sending and / or receiving functions, such as implementing the functions of the sending module and / or receiving module described above. The processor can be used to implement other processing functions or control sending and / or receiving, such as implementing the functions of the sending module and / or receiving module described above.

[0272] The processor 1701 includes one or more processing cores, and the processor 1701 executes various functional applications and information processing by running software programs and modules.

[0273] Transceiver 1702 may include a receiver and a transmitter, for example, the receiver and transmitter may be implemented as the same wireless communication component, which may include a wireless communication chip and a radio frequency antenna.

[0274] The memory 1703 can be connected to the processor 1701 and the transceiver 1702.

[0275] The memory 1703 can be used to store computer programs executed by the processor, and the processor 1701 is used to execute the computer program.

[0276] In some embodiments, when the communication device is a first terminal device, the transceiver 1702 is used to receive first configuration information sent by the first network device, and the first configuration information is used to obtain system configuration information of the second cell.

[0277] In some embodiments, when the communication device is a first network device, the transceiver 1702 is used to send first configuration information to a first terminal device in a first cell, and the first configuration information is used to obtain system configuration information of a second cell.

[0278] In some embodiments, when the communication device is a second network device, the transceiver 1702 is used to send first configuration information to the first network device, the first configuration information being used to obtain system configuration information of the second cell; and / or, to send second configuration information to the first terminal device in the first cell, the second configuration information being used to determine the system configuration information of the second cell.

[0279] For details not described in this embodiment, please refer to the embodiments above, which will not be repeated here.

[0280] Furthermore, the memory can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory, erasable programmable read-only memory, static on-demand memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.

[0281] This application also provides a computer-readable storage medium storing a computer program for execution by a processor to implement the aforementioned wireless communication method. In some embodiments, the computer-readable storage medium may include ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives), or optical disc, etc. The random access memory may include ReRAM (Resistance Random Access Memory) and DRAM (Dynamic Random Access Memory).

[0282] This application also provides a chip, which includes programmable logic circuits and / or program instructions, and is used to implement the above-described wireless communication method when the chip is running.

[0283] This application also provides a computer program product, which includes computer instructions stored in a computer-readable storage medium. A processor reads and executes the computer instructions from the computer-readable storage medium to implement the above-described wireless communication method.

[0284] It should be understood that the term "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0285] In the description of the embodiments of this application, the term "correspondence" may indicate that there is a direct or indirect correspondence between two things, or that there is an association between two things, or that there is a relationship of instruction and being instructed, configuration and being configured, etc.

[0286] In some embodiments of this application, "predefined" can be achieved by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0287] In some embodiments of this application, the term "protocol" may refer to standard protocols in the field of communications, such as LTE protocols, NR protocols, and related protocols applied in future communication systems. This application does not limit the scope of these protocols.

[0288] In this article, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0289] In this article, "greater than or equal to" can mean greater than or equal to, and "less than or equal to" can mean less than or equal to.

[0290] Furthermore, the step numbers described herein are merely illustrative of one possible execution order between steps. In some other embodiments, the steps may not be executed in the order of their numbers, such as two steps with different numbers being executed simultaneously, or two steps with different numbers being executed in the reverse order of the illustration. This application does not limit this.

[0291] Those skilled in the art will recognize that the functions described in the embodiments of this application in one or more of the above examples can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any medium that facilitates the transfer of a computer program from one place to another. Storage media can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0292] The above description is merely an exemplary embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method of wireless communication, the method comprising: The method is executed by a first terminal device, the first network device being a network device in a first cell, and the second network device being a network device in a second cell. The method includes: The system receives first configuration information sent by the first network device, the first configuration information being used to obtain system configuration information of the second cell.

2. The method of claim 1, wherein, The first configuration information is used to determine the first time-frequency resource, the first time-frequency resource is used to send the first indication information, and the first indication information is used to request the system configuration information of the second cell.

3. The method according to claim 1 or 2, characterized in that, Before receiving the first configuration information sent by the first network device, the method further includes: Send a second indication message to the first network device, the second indication message being used to determine at least one of the following: Location information of the first terminal device; The first terminal device is within the coverage area of ​​the second cell; The correspondence between the first terminal device and the second cell.

4. The method of claim 2, wherein, The first time-frequency resource is determined based on at least one of the following: First mapping information, the first mapping information is used to determine the mapping relationship between at least one cell and the coverage area of ​​the at least one cell; Configuration information of time-frequency resources corresponding to at least one cell; The second mapping information is used to determine the mapping relationship between at least one cell and the time-frequency resources corresponding to the at least one cell, wherein, for any one of the at least one cells, the time-frequency resources corresponding to the cell are used by the terminal equipment in the cell to transmit request information for obtaining the system configuration information of the cell; The correspondence between the first terminal device and the second cell; The at least one cell includes the second cell.

5. The method of claim 4, wherein, The method further includes: The first mapping information is obtained based on the first configuration information; or... The first mapping information is obtained based on the configuration information sent by the first network device; or, The first mapping information is obtained based on the configuration information sent by the second network device; or, Obtain the first mapping information automatically.

6. The method according to claim 4 or 5, characterized in that, The method further includes: The second mapping information is obtained based on the first configuration information; or... The second mapping information is obtained based on the configuration information sent by the first network device; or, The second mapping information is obtained based on the configuration information sent by the second network device; or, Obtain the second mapping information yourself.

7. The method according to any one of claims 4 to 6, characterized in that, The method further includes: The correspondence between the first terminal device and the second cell is determined based on at least one of the following: Location information of the first terminal device; The first terminal device is within the coverage area of ​​the second cell.

8. The method according to any one of claims 2 to 7, characterized in that, The method further includes: The first indication information is sent to the second network device through the first time-frequency resource. The first indication information is used to request the system configuration information of the second cell.

9. The method according to any one of claims 2 to 8, characterized in that, The method further includes: The system receives second configuration information sent by the second network device, the second configuration information being used to determine the system configuration information of the second cell.

10. The method of claim 9, wherein, The second configuration information is used to determine the identification information assigned to the first terminal device.

11. The method of claim 1, wherein, The method further includes: The system receives third configuration information sent by the first network device. The third configuration information includes handover command configuration information, which is used to obtain the system configuration information of the second cell.

12. The method of claim 11, wherein, The third configuration information is used to determine the identification information assigned to the first terminal device.

13. The method according to claim 11 or 12, characterized in that, The method further includes: Initiate a random access procedure to the second cell based on the third configuration information; or... Based on the third configuration information, the synchronization channel or control channel sent by the second cell is monitored.

14. The method according to any one of claims 11 to 13, characterized in that, Before receiving the third configuration information sent by the first network device, the method further includes: Send a second indication message to the first network device, the second indication message being used to determine at least one of the following: Location information of the first terminal device; The first terminal device is within the coverage area of ​​the second cell; The first terminal device corresponds to the second cell.

15. The method according to any one of claims 1 to 14, characterized in that, The first configuration information is used to determine at least one of the following: Indication information regarding whether the first cell can assist in obtaining system configuration information of other cells; The first cell can assist in obtaining indication information of system configuration information of at least one cell included in the first cell list; Whether the first cell is associated with information about cells in the first cell list; The first cell list is used to determine the identification information of one or more cells; First mapping information, the first mapping information is used to determine the mapping relationship between at least one cell included in the first cell list and the coverage area of ​​the at least one cell; The second mapping information is used to determine the mapping relationship between at least one cell in the first cell list and the time-frequency resources corresponding to the at least one cell. For any one of the at least one cells, the time-frequency resources corresponding to the cell are used by the terminal device in the cell to transmit request information for obtaining the system configuration information of the cell. The index of the first reference signal, which is used by the first terminal device to complete time-domain synchronization and / or frequency-domain synchronization with the second cell; The index of the second reference signal, which is used by the first terminal device to determine the spatial filter information used to send a signal to the second network device; The index of the third reference signal, which is used by the first terminal device to determine the spatial filter information used to receive signals from the second network device; The first cell list includes the second cell.

16. The method according to any one of claims 1 to 15, characterized in that, The first configuration information is sent through a dedicated channel between the first terminal device and the first network device; or, The first configuration information is broadcast to the terminal devices in the first cell, and the terminal devices in the first cell include the first terminal device.

17. The method according to any one of claims 1 to 16, characterized in that, The system configuration information of the second cell is used to determine at least one of the following: the synchronization signal block SSB of the second cell, the cell identifier of the second cell, the master information block MIB of the second cell, the system information block SIB of the second cell, and the random access configuration of the second cell.

18. The method according to any one of claims 1 to 17, characterized in that, The method further includes: Obtain the system configuration information of the first cell, wherein the system configuration information of the first cell is used to determine at least one of the following: the cell identifier of the first cell, the MIB of the first cell, the SIB of the first cell, and the random access configuration of the first cell.

19. The method according to any one of claims 1 to 18, characterized in that, The first network device is a network device in a non-terrestrial network (NTN), and the second network device is a network device in a terrestrial network (TN); or... Both the first network device and the second network device are network devices in a TN network; or, Both the first network device and the second network device are network devices in NTN.

20. The method according to any one of claims 1 to 19, characterized in that, The first terminal device is a terminal device in the first cell, and the first terminal device is a terminal device in the second cell.

21. A method of wireless communication, the method comprising: The method is executed by a first network device, which is a network device in a first cell, and a second network device, which is a network device in a second cell. The method includes: Send first configuration information to the first terminal device in the first cell, wherein the first configuration information is used to obtain the system configuration information of the second cell.

22. The method of claim 21, wherein, The first configuration information is used to determine the first time-frequency resource, the first time-frequency resource is used to send the first indication information, and the first indication information is used to request the system configuration information of the second cell.

23. The method of claim 21 or 22, wherein, Before sending the first configuration information to the first terminal device in the first cell, the method further includes: Receive second indication information sent by the first terminal device, the second indication information being used to determine at least one of the following: Location information of the first terminal device; The first terminal device is within the coverage area of ​​the second cell; The correspondence between the first terminal device and the second cell.

24. The method of claim 22, wherein, The first time-frequency resource is determined based on at least one of the following: First mapping information, the first mapping information is used to determine the mapping relationship between at least one cell and the coverage area of ​​the at least one cell; Configuration information of time-frequency resources corresponding to at least one cell; The second mapping information is used to determine the mapping relationship between at least one cell and the time-frequency resources corresponding to the at least one cell, wherein, for any one of the at least one cells, the time-frequency resources corresponding to the cell are used by the terminal equipment in the cell to transmit request information for obtaining the system configuration information of the cell; The correspondence between the first terminal device and the second cell; The at least one cell includes the second cell.

25. The method of claim 21, wherein, The method further includes: Send third configuration information to the first terminal device. The third configuration information includes handover command configuration information, which is used to obtain the system configuration information of the second cell.

26. The method of claim 25, wherein, The third configuration information is used to determine the identification information assigned to the first terminal device.

27. The method of claim 25 or 26, wherein, Before sending the third configuration information to the first terminal device, the method further includes: Receive second indication information sent by the first terminal device, the second indication information being used to determine at least one of the following: Location information of the first terminal device; The first terminal device is within the coverage area of ​​the second cell; The first terminal device corresponds to the second cell.

28. The method of any one of claims 21 to 27, wherein, The first configuration information is used to determine at least one of the following: Indication information regarding whether the first cell can assist in obtaining system configuration information of other cells; The first cell can assist in obtaining indication information of system configuration information of at least one cell included in the first cell list; Whether the first cell is associated with information about cells in the first cell list; The first cell list is used to determine the identification information of one or more cells; First mapping information, the first mapping information is used to determine the mapping relationship between at least one cell included in the first cell list and the coverage area of ​​the at least one cell; The second mapping information is used to determine the mapping relationship between at least one cell in the first cell list and the time-frequency resources corresponding to the at least one cell. For any one of the at least one cells, the time-frequency resources corresponding to the cell are used by the terminal device in the cell to transmit request information for obtaining the system configuration information of the cell. The index of the first reference signal, which is used by the first terminal device to complete time-domain synchronization and / or frequency-domain synchronization with the second cell; The index of the second reference signal, which is used by the first terminal device to determine the spatial filter information used to send a signal to the second network device; The index of the third reference signal, which is used by the first terminal device to determine the spatial filter information used to receive signals from the second network device; The first cell list includes the second cell.

29. The method according to any one of claims 21 to 28, characterized in that, The first configuration information is sent through a dedicated channel between the first terminal device and the first network device; or, The first configuration information is broadcast to the terminal devices in the first cell, and the terminal devices in the first cell include the first terminal device.

30. The method of any one of claims 21 to 29, wherein, The system configuration information of the second cell is used to determine at least one of the following: the synchronization signal block SSB of the second cell, the cell identifier of the second cell, the master information block MIB of the second cell, the system information block SIB of the second cell, and the random access configuration of the second cell.

31. The method of any one of claims 21 to 30, wherein, The method further includes: The system configuration information of the first cell is sent, wherein the system configuration information of the first cell is used to determine at least one of the following: the cell identifier of the first cell, the MIB of the first cell, the SIB of the first cell, and the random access of the first cell. Configuration.

32. The method of any one of claims 21 to 31, wherein, The first configuration information is provided by the second network device to the first network device.

33. The method of any one of claims 21 to 32, wherein, The method further includes: The first network device receives fourth configuration information sent by the second network device, the fourth configuration information being used to determine that the first configuration information is invalid; wherein, after obtaining the fourth configuration information, the first network device no longer provides the first configuration information to the terminal devices in the first cell.

34. The method according to any one of claims 21 to 33, characterized in that, The first network device is a network device in a non-terrestrial network (NTN), and the second network device is a network device in a terrestrial network (TN); or... Both the first network device and the second network device are network devices in a TN network; or, Both the first network device and the second network device are network devices in NTN.

35. The method of any one of claims 21 to 34, wherein, The first terminal device is a terminal device in the first cell, and the first terminal device is a terminal device in the second cell.

36. A method of wireless communication, the method comprising: The method is executed by a second network device, which is a network device in a second cell, and the first network device is a network device in a first cell. The method includes: Send first configuration information to the first network device, wherein the first configuration information is used to obtain system configuration information of the second cell; and / or, Send second configuration information to the first terminal device in the first cell, the second configuration information being used to determine the system configuration information of the second cell.

37. The method of claim 36, wherein, The second configuration information is used to determine the identification information assigned to the first terminal device.

38. The method of claim 36, wherein, The first configuration information is used to determine the first time-frequency resource, the first time-frequency resource is used to send the first indication information, and the first indication information is used to request the system configuration information of the second cell.

39. The method of claim 38, wherein, The first time-frequency resource is determined based on at least one of the following: First mapping information, the first mapping information is used to determine the mapping relationship between at least one cell and the coverage area of ​​the at least one cell; Configuration information of time-frequency resources corresponding to at least one cell; The second mapping information is used to determine the mapping relationship between at least one cell and the time-frequency resources corresponding to the at least one cell, wherein, for any one of the at least one cells, the time-frequency resources corresponding to the cell are used by the terminal equipment in the cell to transmit request information for obtaining the system configuration information of the cell; The correspondence between the first terminal device and the second cell; The at least one cell includes the second cell.

40. The method of any one of claims 36 to 39, wherein, Before sending the second configuration information to the first terminal device in the first cell, the method further includes: The system receives a first indication message sent by the first terminal device, the first indication message being used to request system configuration information of the second cell.

41. The method of any one of claims 36 to 39, wherein, The first configuration information is used to determine at least one of the following: Indication information regarding whether the first cell can assist in obtaining system configuration information of other cells; The first cell can assist in obtaining indication information of system configuration information of at least one cell included in the first cell list; Whether the first cell is associated with information about cells in the first cell list; The first cell list is used to determine the identification information of one or more cells; First mapping information, the first mapping information is used to determine the mapping relationship between at least one cell included in the first cell list and the coverage area of ​​the at least one cell; The second mapping information is used to determine the mapping relationship between at least one cell in the first cell list and the time-frequency resources corresponding to the at least one cell. For any one of the at least one cells, the time-frequency resources corresponding to the cell are used by the terminal device in the cell to transmit request information for obtaining the system configuration information of the cell. The index of the first reference signal, which is used by the first terminal device to complete time-domain synchronization and / or frequency-domain synchronization with the second cell; The index of the second reference signal, which is used by the first terminal device to determine the spatial filter information used to send a signal to the second network device; The index of the third reference signal, the third reference signal being used by the first terminal device to determine the signal received from the second network device. Spatial filter information used; The first cell list includes the second cell.

42. The method of any one of claims 36 to 41, wherein, The system configuration information of the second cell is used to determine at least one of the following: the synchronization signal block SSB of the second cell, the cell identifier of the second cell, the master information block MIB of the second cell, the system information block SIB of the second cell, and the random access configuration of the second cell.

43. The method of any one of claims 36 to 42, wherein, The method further includes: The first network device sends fourth configuration information to the first network device, the fourth configuration information being used to determine that the first configuration information is invalid; wherein, after obtaining the fourth configuration information, the first network device no longer provides the first configuration information to the terminal devices in the first cell.

44. The method according to any one of claims 36 to 42, characterized in that, The first network device is a network device in a non-terrestrial network (NTN), and the second network device is a network device in a terrestrial network (TN); or... Both the first network device and the second network device are network devices in a TN network; or, Both the first network device and the second network device are network devices in NTN.

45. The method of any one of claims 36 to 44, wherein, The first terminal device is a terminal device in the first cell, and the first terminal device is a terminal device in the second cell.

46. A wireless communication device, comprising: The device includes: a receiving module; The receiving module is used to receive first configuration information sent by the first network device, and the first configuration information is used to obtain the system configuration information of the second cell.

47. A wireless communication apparatus, characterized by: The device includes: a transmitting module; The sending module is used to send first configuration information to a first terminal device in the first cell, wherein the first configuration information is used to obtain system configuration information of the second cell.

48. A wireless communication apparatus, characterized by: The device includes: a transmitting module; The sending module is used to send first configuration information to the first network device, wherein the first configuration information is used to obtain system configuration information of the second cell; And / or, The sending module is used to send second configuration information to a first terminal device in the first cell, the second configuration information being used to determine the system configuration information of the second cell.

49. A communications device, characterized by The computer device includes a processor and a memory, the memory storing a computer program, the processor executing the computer program to implement the method as claimed in any one of claims 1 to 20, or the method as claimed in any one of claims 21 to 35, or the method as claimed in any one of claims 36 to 45.

50. A computer-readable storage medium, comprising: The storage medium stores a computer program that is executed by a processor to implement the method as claimed in any one of claims 1 to 20, or the method as claimed in any one of claims 21 to 35, or the method as claimed in any one of claims 36 to 45.

51. A chip, comprising: The chip includes programmable logic circuitry and / or program instructions, which, when the chip is running, are used to implement the method as described in any one of claims 1 to 20, or the method as described in any one of claims 21 to 35, or the method as described in any one of claims 36 to 45.

52. A computer program product, characterized in that, The computer program product includes computer instructions stored in a computer-readable storage medium, which a processor reads from and executes to implement the method as claimed in any one of claims 1 to 20, or the method as claimed in any one of claims 21 to 35, or the method as claimed in any one of claims 36 to 45.

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