Information transmission method and apparatus, and device, system, chip and storage medium

Abstract

Provided in the present disclosure are an information transmission method and apparatus, and a device, a system, a chip and a storage medium. The method comprises: sending first time indication information to a terminal at a first beam position, which first time indication information is used for indicating time information for the terminal to receive first neighbor cell configuration information of a first cell, wherein the first beam position lies within the first cell, and the first neighbor cell configuration information is used for the terminal to perform neighbor cell measurement. The method therefore saves on the transmission power and channel resources of a network device.

Description

Information transmission methods, devices, equipment, systems, chips and storage media Technical Field

[0001] This disclosure relates to the field of wireless communication technology, and in particular to an information transmission method, apparatus, device, system, chip, and storage medium. Background Technology

[0002] In wireless communication systems, network devices send neighbor cell configuration information to terminals in various areas within the covered cell, enabling terminals to perform neighbor cell measurements based on this information. Sending this configuration information consumes air interface resources; therefore, minimizing air interface resource usage is a crucial consideration. Summary of the Invention

[0003] This disclosure provides an information transmission method, apparatus, device, system, chip, and storage medium to address the technical problem of high resource consumption in the way network devices send configuration information of neighboring cells.

[0004] In a first aspect, embodiments of this disclosure provide an information transmission method applied to a network device. The method includes: sending first time indication information to a terminal located at a first wave position, the first time indication information being used to indicate the time information for the terminal to receive first neighbor cell configuration information of a first cell, wherein the first wave position is located within the first cell, and the first neighbor cell configuration information is used by the terminal to perform neighbor cell measurement.

[0005] Secondly, this disclosure provides an information transmission method applied to a terminal. The method includes: receiving first time indication information sent by a network device, wherein the first time indication information is used to indicate the time information for the terminal to receive first neighbor cell configuration information of a first cell, wherein the terminal is located in the first position within the first cell.

[0006] Thirdly, this disclosure provides an information transmission device applied to a network device. The device includes a transceiver module for sending a first time indication information to a terminal located at a first wave position. The first time indication information is used to indicate the time information for the terminal to receive first neighbor cell configuration information of a first cell. The first wave position is located within the first cell, and the first neighbor cell configuration information is used by the terminal to perform neighbor cell measurement.

[0007] Fourthly, this disclosure provides an information transmission device applied to a terminal. The device includes a transceiver module for receiving first time indication information sent by a network device. The first time indication information is used to indicate the time information for the terminal to receive first neighbor cell configuration information of a first cell, wherein the terminal is located in the first position within the first cell.

[0008] Fifthly, embodiments of this disclosure provide a communication device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the information transmission method disclosed in embodiments of this disclosure.

[0009] In a sixth aspect, embodiments of this disclosure provide a communication system, including a network device and a terminal, wherein the network device is configured to perform the method described in the first aspect of embodiments of this disclosure, and the terminal is configured to perform the method described in the second aspect of embodiments of this disclosure.

[0010] In a seventh aspect, embodiments of this disclosure provide a chip including one or more interface circuits and one or more processors; the interface circuits are configured to receive signals from the memory of a communication device and send the received signals to the processors, the received signals including computer instructions stored in the memory, and when the processor executes the computer instructions, the communication device performs the information transmission method disclosed in embodiments of this disclosure.

[0011] Eighthly, embodiments of this disclosure provide a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the information transmission method disclosed in embodiments of this disclosure.

[0012] Ninthly, embodiments of this disclosure provide a computer program product, including a computer program that, when executed by a processor, implements the information transmission method disclosed in embodiments of this disclosure.

[0013] The technical solutions provided by the embodiments of this disclosure have at least the following beneficial effects:

[0014] If a terminal in the first wave does not need to perform neighbor cell measurement, the network device may not send the first neighbor cell configuration information for neighbor cell measurement to the terminal. Instead, it may send the first time indication information, which indicates the time information for the terminal to receive the first neighbor cell configuration information. Since sending the first time indication information consumes significantly less transmission power and channel resources of the network device compared to sending the first neighbor cell configuration information, the transmission power and channel resources of the network device can be saved.

[0015] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0017] Figure 1 is a schematic diagram of the architecture of a wireless communication system provided in an embodiment of this disclosure;

[0018] Figure 2 is an example diagram of a single-satellite single-cell network system provided in an embodiment of this disclosure;

[0019] Figure 3 is an example diagram of a wave position distribution provided in an embodiment of this disclosure;

[0020] Figure 4 is a flowchart illustrating an information transmission method provided in an embodiment of this disclosure;

[0021] Figure 5 is an example diagram showing the change of the relative position of wave position A within the first cell during the movement of the first cell according to an embodiment of this disclosure;

[0022] Figure 6 is an example diagram of another wave position distribution provided by an embodiment of this disclosure;

[0023] Figure 7 is a flowchart illustrating another information transmission method provided in an embodiment of this disclosure;

[0024] Figure 8 is a flowchart illustrating another information transmission method provided in an embodiment of this disclosure;

[0025] Figure 9 shows an example of information transmission between a satellite-based base station and a terminal.

[0026] Figure 10 is a flowchart illustrating another information transmission method provided in an embodiment of this disclosure;

[0027] Figure 11 is a flowchart illustrating another information transmission method provided in an embodiment of this disclosure;

[0028] Figure 12 is a schematic diagram of the structure of an information transmission device provided in an embodiment of this disclosure;

[0029] Figure 13 is a schematic diagram of another information transmission device provided in an embodiment of this disclosure;

[0030] Figure 14 is a schematic diagram of another information transmission device provided in an embodiment of this disclosure;

[0031] Figure 15 is a schematic diagram of another information transmission device provided in an embodiment of this disclosure;

[0032] Figure 16 is a block diagram illustrating a communication device for implementing an information transmission method according to an exemplary embodiment;

[0033] Figure 17 is a schematic diagram of the structure of a chip according to an exemplary embodiment. Detailed Implementation

[0034] Embodiments of this disclosure are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0035] To better understand the embodiments of this application, the communication system to which the embodiments of this application are applicable is described below.

[0036] Please refer to Figure 1, which is a schematic diagram of the architecture of a wireless communication system provided in an embodiment of this disclosure. This wireless communication system may include, but is not limited to, one network device and one terminal. The number and configuration of devices shown in Figure 1 are for illustrative purposes only and do not constitute a limitation on the embodiments of this disclosure. In practical applications, it may include two or more network devices and two or more terminals. The wireless communication system shown in Figure 1 is exemplified by including one network device 101 and one terminal 102.

[0037] The network device 101 in this embodiment of the disclosure is an entity used for transmitting or receiving signals.

[0038] Among them, network equipment 101 is, for example, a node or device that connects a terminal to a wireless network. Network equipment may include at least one of the following: satellite, base station mounted on a satellite (referred to as satellite-borne base station), evolved Node B (eNB) in a 5G communication system, next generation eNB (ng-eNB), next generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), wireless backhaul equipment, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system, but is not limited to these.

[0039] Among them, satellites can be low Earth Orbit (LEO) satellites, medium Earth Orbit (MEO) satellites, high Earth Orbit (GEO) satellites, etc.

[0040] The embodiments disclosed herein do not limit the specific technologies or device forms used in the network devices.

[0041] In this disclosure, terminal 102 refers to a processing device within the coverage area of ​​a network device for communicating with the network device. For example, the terminal may be at least one of the following: a car with wireless communication capabilities, a smart car, a mobile phone, a wearable device, a tablet computer, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, or a wireless terminal in a smart home; but it is not limited thereto. This disclosure does not limit the specific technology or device form used in the terminal.

[0042] It is understood that the wireless communication system described in the embodiments of this disclosure is for the purpose of more clearly illustrating the technical solutions of the embodiments of this disclosure, and does not constitute a limitation on the technical solutions provided in the embodiments of this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this disclosure are also applicable to similar technical problems.

[0043] In the aforementioned wireless communication system, network devices broadcast System Information (SI) to the entire covered area. This SI is "cell-level," meaning that all locations and terminals within the entire cell coverage area receive the same SI information. The SI includes configuration information for all neighboring cells of the cell covered by the network device, used by the terminal for neighbor cell measurement. Neighboring cells are referred to simply as neighboring cells. However, when a terminal is located in the central area of ​​the cell's coverage, neighbor cell measurement is unnecessary. Therefore, this method of indiscriminately sending configuration information for all neighboring cells to the covered area significantly increases the network device's transmission power consumption and wastes channel resources.

[0044] The system information includes neighbor cell configuration information, which includes information related to neighboring cells of the current cell covered by the network equipment. This information provides neighboring cell information to terminals camped in the current cell and is mainly used for mobility management. Terminals use this information to detect and measure neighboring cells so that they can switch to a new cell before the coverage of the current cell ends, maintaining service continuity. The neighbor cell configuration information may include one or more of the following: cell reselection information related to the current cell; service frequency information and co-frequency neighboring cell information related to cell reselection; New Radio (NR) inter-frequency neighboring cell information related to cell reselection; cell reselection-related parameters and carrier information of the Evolved UMTS Terrestrial Radio Access Network (E-UTRAN) related to cell reselection; serving cell and neighboring cell satellite parameters of the Non-Terrestrial Network (NTN), etc.

[0045] The following, with reference to Figure 2, exemplifies the high power consumption and channel resource consumption of the network equipment in the method of transmitting the configuration information of the aforementioned neighboring cells. It should be noted that Figure 2 uses a mobile phone as the terminal and a satellite as the network equipment, and provides an example of a single-satellite, single-cell network system. In Figure 2, the dashed box represents the area covered by the satellite, i.e., cell 1, and the arrow direction indicates the direction of movement of the satellite coverage area (cell 1) relative to the ground. Cell 1 contains numerous wavelengths.

[0046] As shown in Figure 2, in related technologies, the satellite broadcasts system information to the entire area covered by cell 1, including the configuration information of all neighboring cells adjacent to cell 1. That is, within the entire coverage area of ​​cell 1, all terminals within each band receive the configuration information of all neighboring cells transmitted by the satellite, and the information received by terminals within each band is identical. However, for satellite networks, due to their wide coverage, numerous bands, and the fact that the overlapping area between cells is usually much smaller than the cell coverage area, terminal 1, located within cell 1, is too far from neighboring cells to actually measure them, and currently has no need to change cells. Terminal 2, located at the edge of cell 1, is closer to neighboring cells and therefore needs to receive the configuration information of the neighboring cells in order to perform neighboring cell measurements and trigger cell reselection or handover.

[0047] In other words, for satellite networks, when a terminal is in the central area of ​​a cell's coverage area, there is no need to measure neighboring cells. Furthermore, the overlapping area between cells is usually much smaller than the cell's coverage area. Even if the terminal were to measure, it would be unable to measure neighboring cells. In addition, satellite beams can provide services to the coverage area in a time-division manner in a scanning manner, which already incurs significant broadcast overhead. This method of indiscriminately sending configuration information of neighboring cells to the covered area would greatly increase the satellite's transmission power consumption and waste channel resources.

[0048] In order to save the transmission power and channel resources of network devices, embodiments of this disclosure propose an information transmission method, an information transmission device, a communication device, a communication system, a chip, a computer-readable storage medium, and a computer program product.

[0049] To facilitate understanding, the technical terms involved in the embodiments of this disclosure will be explained first.

[0050] First Community

[0051] The first cell is the area covered by the network equipment on the ground. The first cell can be divided into multiple beams, and the network equipment can scan these beams to achieve beam scanning. The first cell can be a cell that moves relative to the ground.

[0052] First wave

[0053] The first wave position is any wave position within the first cell, and the position of the first wave position relative to the ground can remain unchanged.

[0054] First Neighboring Cell Configuration Information

[0055] The first neighbor cell configuration information is sent by the network device to the terminals within the first wave position. It is used by the terminals within the first wave position to perform neighbor cell measurement. After receiving the first neighbor cell configuration information, the terminals within the first wave position can perform neighbor cell measurement, uplink / downlink synchronization, reselection, or handover based on the first neighbor cell configuration information.

[0056] Second wave

[0057] The second wave position is any wave position within the first cell that is different from the first wave position, and the position of the second wave position relative to the ground can remain unchanged.

[0058] Edge wave position and non-edge wave position

[0059] For each wave position within the first cell, it can be determined whether the terminal within the wave position needs to perform neighbor cell measurement based on the adjacency of the wave position with the neighboring cells of the first cell, thereby dividing each wave position within the first cell into edge wave positions and non-edge wave positions.

[0060] As an example, it can be understood that at a certain moment, in the wave positions within the first cell, terminals within a wave position adjacent to any neighboring cell of the first cell may move to a neighboring cell at the next moment, or a neighboring cell may also cover that wave position at the next moment as the first cell moves. In this case, terminals within that wave position need inter-cell mobility, and neighboring cell measurements are required. Conversely, wave positions within the first cell that are separated from any neighboring cell by at least one wave position do not involve inter-cell mobility, and terminals within that wave position do not need to perform neighboring cell measurements. Therefore, wave positions within the first cell that are adjacent to any neighboring cell of the first cell can be called edge wave positions; wave positions within the first cell that are separated from any neighboring cell by at least one wave position are called non-edge wave positions. That is, edge wave positions are adjacent to any neighboring cell of the first cell; non-edge wave positions are separated from any neighboring cell of the first cell by at least one wave position. The number of any neighboring cells simultaneously adjacent to an edge wave position can be one or more.

[0061] Referring to Figure 3, using a network device as a satellite as an example, the following illustrative explanations of edge and non-edge wavelengths are provided. In Figure 3, each hexagon represents a wavelength, the gray-filled and grid-filled areas represent the first cell currently covered by the satellite, and the arrow direction indicates the direction of movement of the satellite coverage area, i.e., the first cell, relative to the ground. The first cell is divided into multiple wavelengths.

[0062] Referring to Figure 3, at the current time corresponding to the wave position distribution shown in Figure 3, the neighboring cells of the first cell include neighboring cell 1, neighboring cell 2, neighboring cell 3, and neighboring cell 4. Specifically, the dotted filled area on the left side of Figure 3 represents neighboring cell 1, the dotted filled area on the right side represents neighboring cell 2, the white filled area at the top represents neighboring cell 4, and the white filled area at the bottom represents neighboring cell 3.

[0063] Referring to Figure 3, among the wave positions in the first cell, wave positions 1-38 that are adjacent to at least one of neighboring cells 1, 2, 3, and 4, respectively, require neighbor cell measurement for their terminals and can be called edge wave positions. Among the wave positions in the first cell, wave positions that are separated from each of neighboring cells 1, 2, 3, and 4 by at least one wave position (i.e., the gray-filled, unlabeled wave positions in Figure 3) do not require neighbor cell measurement for their terminals and can be called non-edge wave positions.

[0064] As another example, for positions within the first cell that are separated from any neighboring cell by at least one position, terminals within these positions do not involve inter-cell mobility and do not require neighbor cell measurements; therefore, these positions can be called non-edge positions. Furthermore, it is understandable that when the first cell moves relative to the ground at a speed much higher than the speed of terminals on the ground—for example, when the first cell is covered by a low-Earth orbit satellite—terminals within positions covered by the first cell cannot return to the cell they were in before being covered. Therefore, terminals within positions within the first cell that are adjacent to the source cell and separated from any other neighboring cell by at least one position also do not require neighbor cell measurements; thus, these positions can also be called non-edge positions. Here, the source cell refers to the cell in which each position was located before being covered by the first cell, and other neighboring cells refer to the neighboring cells of the first cell other than the source cell. Within the first cell, any wave position adjacent to at least one other neighboring cell is considered an edge wave position because the terminals within it involve inter-cell mobility and require neighboring cell measurements. Specifically, any wave position within the first cell can be considered a non-edge wave position if it satisfies either of the following conditions: a non-edge wave position is separated from any neighboring cell of the first cell by at least one wave position; or a non-edge wave position is adjacent to the source cell and separated from any other neighboring cell by at least one wave position. Conversely, any wave position within the first cell can be considered an edge wave position if it satisfies the following condition: an edge wave position is adjacent to at least one other neighboring cell.

[0065] Referring to Figure 3, and using a satellite as an example, we will now provide an illustrative explanation of edge and non-edge wavelengths. Since the first cell moves from bottom to top, neighboring cell 4 is the cell where each wavelength in the first cell was located before being covered by the first cell; that is, the source cell. The other neighboring cells of the first cell besides the source cell include neighboring cell 1, neighboring cell 2, and neighboring cell 3.

[0066] Referring to Figure 3, among the wave positions in the first cell, the wave positions adjacent to neighboring cell 4 and separated from neighboring cells 1, 2, and 3 by at least one wave position (i.e., wave positions 2-6 and 8-13 in Figure 3), and the wave positions separated from neighboring cells 1, 2, 3, and 4 by at least one wave position (i.e., the gray-filled and unlabeled wave positions in Figure 3), whose terminals do not require neighbor cell measurement, can be called non-edge wave positions. Among the wave positions in the first cell, the wave positions adjacent to at least one of neighboring cells 1, 2, and 3 (i.e., wave positions 1, 7, and 14-38), whose terminals require neighbor cell measurement, can be called edge wave positions.

[0067] Based on this, it can be understood that in some possible embodiments, the non-edge wave position is spaced apart from at least one neighboring cell of the first cell by at least one wave position; in other possible embodiments, the non-edge wave position is adjacent to the source cell; in still other possible embodiments, the non-edge wave position is spaced apart from at least one neighboring cell of the first cell by at least one wave position, and the non-edge wave position is adjacent to the source cell.

[0068] In summary, in one possible implementation, among the wave positions in the first cell, the non-edge wave positions are spaced at least one wave position apart from at least one neighboring cell of the first cell; and / or, the non-edge wave positions are adjacent to the source cell.

[0069] In one possible implementation, among the wave positions within the first cell, the edge wave positions are adjacent to at least one neighboring cell of the first cell.

[0070] In one possible implementation, among the wavelets within the first cell, the edge wavelets are adjacent to at least one neighboring cell of the first cell, wherein the at least one neighboring cell does not include the source cell.

[0071] It should be noted that in some embodiments of this disclosure, the notation "between B and C" indicates a time period with a start time of B and an end time of C. This time period may or may not include B and / or C, and this disclosure does not impose any restrictions on this. B and C represent any two different times or moments.

[0072] The following describes an information transmission method applied to a network device according to an embodiment of this disclosure.

[0073] In this disclosure, when a terminal in the first wave does not need to perform neighbor cell measurement, the network device may not send the first neighbor cell configuration information for performing neighbor cell measurement to the terminal, but instead send the first time indication information. The first time indication information indicates the time information for the terminal to receive the first neighbor cell configuration information. Since sending the first time indication information consumes significantly less transmission power and channel resources of the network device compared to sending the first neighbor cell configuration information, the transmission power and channel resources of the network device can be saved.

[0074] Building upon this, the configuration and transmission of system information at the "cell level" can be further improved to the configuration and transmission of system information at the "wavelength level." That is, network devices can accurately configure system information broadcasts to terminals within each wavelength at the granularity of wavelength, so that the system information is the same within the corresponding wavelength, but different between different wavelengths. Alternatively, network devices can accurately configure system information broadcasts to terminals within each wavelength at the granularity of wavelength groups, so that the system information is the same within the corresponding wavelength group, but different between different wavelength groups.

[0075] Figure 4 is a schematic flowchart of an information transmission method provided in an embodiment of this disclosure. It should be noted that the information transmission method in this embodiment is executed by an information transmission device. This information transmission device can be a network device, or configured within a network device; this disclosure does not limit its use. This embodiment uses a network device as an example for illustration.

[0076] As shown in Figure 4, the information transmission method may include the following steps:

[0077] Step 401: Send a first time indication message to the terminal in the first wave position. The first time indication message is used to indicate the time information for the terminal to receive the first neighbor cell configuration information of the first cell. The first wave position is located in the first cell. The first neighbor cell configuration information is used by the terminal to perform neighbor cell measurement.

[0078] Correspondingly, the terminal in the first wave position can receive the first time indication information sent by the network device, and then receive the first neighbor cell configuration information based on the time information indicated by the first time indication information.

[0079] The time information may include information of at least one time period, or information of one or more moments, and this disclosure does not limit it.

[0080] It is understandable that, in the case where the first cell is a cell that moves relative to the ground, as the first cell moves, the relative position of the same first wave position within the first cell may be different at different times. This can result in situations where the terminal does not need to perform neighbor cell measurements and situations where it does need to perform neighbor cell measurements.

[0081] For example, let's take Figure 5 as an example. Figure 5 illustrates the network equipment using a low-Earth orbit satellite. In Figure 5, the dashed boxes corresponding to times T0, T1, T2, and T3 represent the coverage area of ​​cell 1 covered by the satellite at times T0, T1, T2, and T3, respectively. The direction of the arrows indicates the direction of movement of the satellite coverage area, i.e., cell 1, relative to the ground. Cell 1 contains numerous wavelengths, and each hexagon represents one wavelength.

[0082] Referring to Figure 5, taking wave position A as an example, at time T0, wave position A has just entered the coverage area of ​​cell 1. Since the satellite's movement speed is much greater than the terminal's movement speed for low-Earth orbit satellites, the terminal at wave position A will not move out of the coverage area of ​​cell 1 along the direction of cell 1's movement. At this time, the terminal at wave position A has no possibility of changing cells. Therefore, the terminal within wave position A does not need to perform neighbor cell measurements.

[0083] At time T1, as cell 1 moves relative to the ground, wave position A enters the center position of cell 1. At this time, the terminal within wave position A still does not need to perform neighbor cell measurement.

[0084] At time T2, due to the movement of cell 1 relative to the ground, wave position A is about to leave the coverage area of ​​cell 1. At this time, the terminal in wave position A can already measure neighboring cells and is about to perform cell reselection or handover. Therefore, the terminal in wave position A needs to perform neighboring cell measurement.

[0085] At time T3, due to the movement of cell 1 relative to the ground, wave position A leaves the coverage area of ​​cell 1. Terminals located at wave position A should complete handover or reselection to a neighboring cell before this time to maintain service continuity.

[0086] In this embodiment, the network device may not send the first neighbor cell configuration information to terminals within the first wavelet if the terminals within the first wavelet do not need to perform neighbor cell measurements, and may only send the first neighbor cell configuration information to terminals within the first wavelet if the terminals within the first wavelet do need to perform neighbor cell measurements. Furthermore, when terminals within the first wavelet do not need to perform neighbor cell measurements, the network device may send a first time indication information to the terminals within the first wavelet to indicate the time information for the terminal to receive the first neighbor cell configuration information. This allows the terminal to receive the first neighbor cell configuration information promptly when the network device sends it, and subsequently perform neighbor cell measurements based on the first neighbor cell configuration information.

[0087] For example, continuing with Figure 5, for the first wave position A, between time T0 and T2, terminals within wave position A do not need to perform neighbor cell measurements. Therefore, the satellite can send a first time indication message instead of the first neighbor cell configuration information to terminals within wave position A. Between time T2 and T3, terminals within wave position A need to perform neighbor cell measurements, and the satellite can then send the first neighbor cell configuration information to them. After receiving the first neighbor cell configuration information, terminals within wave position A can perform neighbor cell measurements, and subsequently perform cell reselection or handover. In this example, since terminals within wave position A need to perform neighbor cell measurements at time T2, the time period between time T0 and T2 may not include time T2, while the time period between time T2 and T3 may include time T2.

[0088] Alternatively, to ensure that terminals within waveband A can perform neighbor cell measurements promptly based on the first neighbor cell configuration information at time T2, the satellite can, between time T0 and a configurable time period, not send the first neighbor cell configuration information to terminals within waveband A, but instead send a first time indication message. This configurable time period is before time T2, and the first neighbor cell configuration information is sent to terminals within waveband A between this configurable time period and time T3. The configurable time period is a time point that can be flexibly configured as needed. Upon receiving the first neighbor cell configuration information, terminals within waveband A can perform neighbor cell measurements, and subsequently, cell reselection or handover.

[0089] Compared to sending the first neighbor cell configuration information, sending the first time indication information significantly reduces the power consumption and channel resource consumption of network devices, thereby saving the power consumption and channel resources of network devices.

[0090] In one possible implementation, since terminals in non-edge positions do not need to perform neighbor cell measurements, while terminals in edge positions do, the network device may, when the first position is a non-edge position, not send the first neighbor cell configuration information to the terminals in the first position, but instead send the first time indication information to indicate the time information for the terminal to receive the first neighbor cell configuration information.

[0091] When the first wave position changes from a non-edge wave position to an edge wave position as the first cell moves, the network device can start sending the first neighbor cell configuration information to the terminals within the first wave position, and continue to send it at preset time intervals until the first wave position leaves the coverage area of ​​the first cell. This allows for continuous sending of the first neighbor cell configuration information to the terminals in the first wave position within a certain time period. The start time of this time period is the time when the first wave position changes from a non-edge wave position to an edge wave position, and the end time of this time period is the time when the first wave position leaves the coverage area of ​​the first cell. This time period may or may not include the start time.

[0092] Alternatively, before the first wavelet changes from a non-edge wavelet to an edge wavelet, the network device may begin sending first neighbor cell configuration information to terminals within the first wavelet at a configurable time interval, and continue sending it at a preset time interval until the first wavelet leaves the coverage area of ​​the first cell. This allows for the continuous sending of first neighbor cell configuration information to terminals in the first wavelet within a certain time period. The start time of this time period is the configurable time, and the end time of this time period is the time when the first wavelet leaves the coverage area of ​​the first cell. This time period may or may not include the configurable time.

[0093] Accordingly, in one possible implementation, the first time indication information may include a first indication and a second indication; wherein the first indication is used to indicate the end time of service for the first cell to the first wavelet; and the second indication is used to indicate the duration for which the network device sends the first neighbor cell configuration information.

[0094] The service termination time of the first cell to the first wavelet, i.e., the time when the first wavelet leaves the coverage area of ​​the first cell, can be the end time when the network device finishes sending the first neighbor cell configuration information. The duration for which the network device sends the first neighbor cell configuration information, i.e., the duration for which the network device continuously sends the first neighbor cell configuration information to the terminal located at the first wavelet, can be the duration for which the first cell moves at least one wavelet, and can be determined according to the size of the wavelet defined in the communication system and the moving speed of the first cell.

[0095] The first indication can represent a point in time; in some possible embodiments, the first indication can represent an absolute point in time. The second indication can represent a duration; in some possible embodiments, the second indication can represent a duration. The difference between the first and second indications is the start time for the network device to send the first neighbor cell configuration information.

[0096] By using the first time indication information, including the first indication and the second indication, the terminal in the first wave position can determine the start time for the network device to send the first neighbor cell configuration information by combining the first indication and the second indication.

[0097] Correspondingly, in one possible implementation, the network device may not send the first neighbor cell configuration information to the terminals in the first wavelet before the first time, but instead send the first time indication information, and send the first neighbor cell configuration information to the terminals in the first wavelet between the first time and the end time of the first cell's service to the first wavelet.

[0098] In some possible embodiments, the first time is a point in time, wherein the first time is before the service end time and the interval between the first time and the service end time is the aforementioned duration. For example, the first time could be the moment when the first wavelet changes from a non-edge wavelet to an edge wavelet, or a configurable time before that time. The configurable time is a point in time that can be flexibly configured as needed.

[0099] In some possible embodiments, the first neighbor cell configuration information may or may not be sent at the first time or at the end of the service.

[0100] In one possible implementation, the first time indication information may include a third indication, wherein the third indication is used to indicate the start time for the network device to send the first neighbor cell configuration information.

[0101] The start time for the network device to send the first neighbor cell configuration information can be determined based on the time it takes for the first wavelength to change from a non-edge wavelength to an edge wavelength. For example, this start time can be the time it takes for the first wavelength to change from a non-edge wavelength to an edge wavelength, or a configurable time prior to that time.

[0102] The third indication can represent a point in time, and in some possible embodiments, the third indication can represent an absolute point in time.

[0103] By using the first-time indication information, including the third indication, the terminal in the first wave position can directly determine the start time for the network device to send the first neighbor cell configuration information based on the third indication.

[0104] Correspondingly, in one possible implementation, the network device may not send the first neighbor cell configuration information to the terminals in the first wave position before the start time of sending the first neighbor cell configuration information, but instead send a first time indication information, and then send the first neighbor cell configuration information to the terminals in the first wave position after the start time.

[0105] In some possible embodiments, at the start time indicated by the third indication, the first neighbor cell configuration information may or may not be sent.

[0106] It should be noted that for non-terrestrial communication systems such as satellite communication systems, one possible implementation is that the satellite-covered cells move in granular increments based on wavelength positions. As shown in Figure 6, the satellite coverage area, i.e., cell 1 in Figure 6, can move in steps of wavelength positions, with the direction of movement as indicated by the arrows in Figure 6. For example, it can advance one row of wavelength positions each time and release the row of wavelength positions behind it for neighboring cells to serve. Since different wavelength positions may leave the coverage area of ​​cell 1 at different times, for example, taking wavelength positions a and b in Figure 6 as examples, at the corresponding moment in Figure 6, wavelength position a is about to leave the coverage area of ​​cell 1, while wavelength position b has just entered the coverage area of ​​cell 1. Therefore, the service termination time for cell 1 for these two wavelength positions is different.

[0107] In one embodiment of this disclosure, when the first cell is a cell that moves relative to the ground, the service end time of the first cell for the first waveband and the service end time of the first cell for the second waveband satisfy the following rule:

[0108] When the projection positions of the first wave position and the second wave position in the direction of movement of the first cell are different, the service end time of the first cell for the first wave position is different from the service end time of the first cell for the second wave position.

[0109] When the projection positions of the first wave position and the second wave position are the same in the direction of movement of the first cell, the service end time of the first cell for the first wave position is the same as the service end time of the first cell for the second wave position.

[0110] Among them, the later a wavelength leaves the coverage area of ​​the first cell, the later the service time of the first cell for that wavelength will end.

[0111] For example, continuing to refer to Figure 6, taking wave positions a and c as examples, wave positions a and c have different projection positions in the direction of movement of cell 1. Therefore, the service termination time of cell 1 for wave position a is different from the service termination time of cell 1 for wave position c, and the service termination time of cell 1 for wave position c is later than the service termination time of cell 1 for wave position a. Taking wave positions c and d as examples, wave positions c and d have the same projection position in the direction of movement of cell 1. Therefore, the service termination time of cell 1 for wave position c is the same as the service termination time of cell 1 for wave position d.

[0112] Since the service end time of the first cell may be different for different wave positions, the first indication corresponding to different wave positions may be different. Therefore, in this embodiment of the present disclosure, the first indication corresponding to different wave positions can be configured differently. The first indication is accurate and effective for each wave position, so that the terminal in different wave positions can perform time-based measurement initiation based on the first indication corresponding to its wave position, thereby improving the timeliness and accuracy of measurement.

[0113] In one possible implementation, the first indicator can be a t-Service information element or parameter, or other information elements or parameters, which is not limited in this disclosure. Here, t-Service can be referred to as a service end time indicator.

[0114] In one possible implementation, the second instruction may be a t-neighborOSI cell or parameter, or other cells or parameters, which this disclosure does not limit.

[0115] In one possible implementation, the third instruction may be a t-neighborOSI cell or parameter, or other cells or parameters, which this disclosure does not limit.

[0116] The data types, value ranges, and units of the first, second, and third instructions can be set as needed, and this disclosure does not impose any restrictions on them.

[0117] As an example, the data type of the first, second, or third indicator can be an integer, with a value range of 0 to 20000, and the unit can be milliseconds.

[0118] It should be noted that in one possible implementation, the third instruction and the first instruction can coexist. That is, the network device can send the third instruction and the first instruction to the terminal in the first wave position, so that the terminal can receive the first neighbor cell configuration information in a timely manner when the network device sends the first neighbor cell configuration information based on the third instruction, and perform time-based measurement activation based on the first instruction.

[0119] Continuing with Figure 5, and taking the example of the first time indication information including a first indication and a second indication, where the first indication is t-Service and the second indication is t-neighborOSI, the process of the network device sending the first neighbor cell configuration information and the first time indication information will be explained exemplarily. Specifically, the first time is obtained by subtracting t-neighborOSI from t-Service, and the first time is the time when the first wavelet changes from a non-edge wavelet to an edge wavelet. The explanation will then proceed with the example of the network device sending the first neighbor cell configuration information to the terminal located in the first wavelet between the first time and the end time of the first cell's service for the first wavelet.

[0120] Referring to Figure 5, at time T0, wavelet A has just entered the coverage area of ​​cell 1. At time T2, wavelet A is about to leave the coverage area of ​​cell 1. That is, time T2 is the time when wavelet A changes from a non-edge wavelet to an edge wavelet, which is also the first time obtained by subtracting t-neighborOSI from t-Service. At time T3, wavelet A leaves the coverage area of ​​cell 1. Time T3 is the service end time indicated by t-Service.

[0121] Between time T0 and time T2, the satellite may not send the first neighbor cell configuration information to terminals within wavelength A, but instead send t-Service and t-neighborOSI. Correspondingly, terminals within wavelength A receive t-Service and t-neighborOSI from the satellite.

[0122] Between time T2 and T3, the satellite may not send t-neighborOSI to terminals within wavelength A, but instead send first neighbor cell configuration information. Correspondingly, terminals within wavelength A receive the first neighbor cell configuration information from the satellite.

[0123] Since the terminal in wave position A needs to perform neighbor cell measurement at time T2, the time period between time T0 and time T2 may not include time T2, and the time period between time T2 and time T3 may include time T2.

[0124] It should be noted that between time T2 and time T3, t-Service can be configured to send or not send as needed, and this disclosure does not impose any restrictions on this.

[0125] In one possible implementation, the first-time instruction information is carried in the first system information block.

[0126] The first system information block can be any system information block (SIB).

[0127] As an example, the first system information block can be SIB19.

[0128] In one possible implementation, the configuration information of the first neighboring cell is carried in the second system information block.

[0129] The second system information block can be any system information block, and the number of second system information blocks can be one or more, which is not limited in this disclosure.

[0130] As an example, the second system information block may include at least one of SIB2, SIB3, SIB4, SIB5, and SIB19.

[0131] In one possible implementation, the neighboring cells of the first cell that are adjacent to the first wave position can be referred to as the first neighboring cells. These neighboring cells may include those adjacent to the first wave position at a single moment, or those adjacent to the first wave position at multiple moments during the movement of the first cell. The number of neighboring cells adjacent to the first wave position at any given moment can be one or more, and this disclosure does not limit this.

[0132] It should be noted that the first neighboring cell may include only the neighboring cells that are adjacent to the first wave position, or it may include all the neighboring cells of the first cell that are adjacent to the first wave position. This disclosure does not impose any restrictions on this. Among them, "other neighboring cells" refers to the neighboring cells of the first cell other than the source cell.

[0133] For example, let's take the case where the first neighboring cell only includes neighboring cells that are adjacent to the first wave position. Continuing to refer to Figure 3, taking wave position 2 as the first wave position, since wave position 2 is adjacent to neighboring cell 4 at the time corresponding to Figure 3, as the first cell moves, wave position 2 will be adjacent to neighboring cell 3 at some later time. Since neighboring cell 4 is the source cell, the first neighboring cell can include neighboring cell 3.

[0134] In one possible implementation, at least one neighboring cell of the first cell can be referred to as the first neighboring cell. This at least one neighboring cell may include all neighboring cells of the first cell, or other neighboring cells of the first cell other than the source cell; this disclosure does not impose any limitations on this.

[0135] For example, let's take all the neighboring cells of the first cell as the first neighboring cell. Continuing to refer to Figure 3, taking the first wave position as wave position 2 as an example, the first neighboring cell can include neighboring cell 1, neighboring cell 2, neighboring cell 3, and neighboring cell 4.

[0136] Therefore, the configuration information of the first neighboring cell can include configuration information related to the first neighboring cell. This configuration information may include the measurement parameters, reselection conditions, cell identifier, frequency resources used, and information about the network equipment in which the neighboring cell resides, such as satellite ephemeris data.

[0137] The configuration information of the first neighboring cell includes configuration information related to the first neighboring cell. The first neighboring cell is the neighboring cell of the first cell that is adjacent to the first wave position at multiple times. During the movement of the first cell, the terminal only needs to receive the configuration information of the first neighboring cell once within the first wave position, thus avoiding the need to receive the configuration information of the first neighboring cell frequently.

[0138] In one possible implementation, where the configuration information of the first neighboring cell is carried in a second system information block, and the second system information block includes at least one of SIB2, SIB3, SIB4, SIB5, and SIB19, the information included in SIB2, SIB3, SIB4, SIB5, and SIB19 is as follows:

[0139] SIB2 may include cell reselection information related to the first neighboring cell;

[0140] SIB3 may include co-frequency cell reselection information related to the first neighboring cell;

[0141] SIB4 may include inter-frequency cell reselection information related to the first neighboring cell;

[0142] SIB5 may include inter-system cell reselection information related to the first neighboring cell;

[0143] SIB19 may include information about at least one of the NTN serving cell and the satellite cell in the first neighboring cell.

[0144] The cell reselection information may include public information for same-frequency, different-frequency, and different-system cells, information of the current serving cell used for cell reselection, and some information used for same-frequency cell reselection.

[0145] Cell reselection information for cells on the same frequency can include a list of neighboring cells on the same frequency.

[0146] Inter-frequency cell reselection information may include relevant cell reselection parameters for the inter-frequency carrier and a list of neighboring inter-frequency cells.

[0147] Inter-system cell reselection information may include cell reselection-related parameters and related carrier information of E-UTRAN.

[0148] As can be seen from the above analysis, using the information transmission method of this embodiment, for the same first wave position within the first cell, it is not necessary to continuously broadcast the first neighbor cell configuration information in the time dimension. When a terminal within the first wave position does not need to perform neighbor cell measurement, the network device can refrain from sending the first neighbor cell configuration information for neighbor cell measurement to that terminal. Instead, it can send a first time indication information, which indicates the time information for the terminal to receive the first neighbor cell configuration information. Since sending the first time indication information significantly reduces the power consumption and channel resource consumption of the network device compared to sending the first neighbor cell configuration information, it can save the network device's power consumption and channel resources.

[0149] For different positions in the spatial dimension within the first cell, at any given moment, the network device can determine whether the terminals in each position within the first cell need to perform neighbor cell measurements. Based on the determination result, it sends corresponding first neighbor cell configuration information to some positions, while not sending the corresponding first neighbor cell configuration information to other positions. Instead, it sends corresponding first time indication information, which indicates the time when the terminals in the corresponding positions receive the first neighbor cell configuration information. Since sending the first time indication information requires very little channel resources, compared to sending the first neighbor cell configuration information to each position within the first cell at the same time, the information transmission method of this embodiment can reduce the amount of data sent to each position within the first cell at the same time, thereby saving the transmission power and channel resources of the network device.

[0150] It should be noted that, in the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0151] In the embodiments disclosed herein, each step and its optional implementation can also be carried out independently.

[0152] The information transmission method provided in the embodiments of this disclosure will be further described below.

[0153] Figure 7 is a schematic flowchart of an information transmission method provided in an embodiment of this disclosure. It should be noted that the information transmission method in this embodiment is executed by an information transmission device. This information transmission device can be a network device, or configured within a network device; this disclosure does not limit its use. This embodiment uses a network device as an example for illustration.

[0154] As shown in Figure 7, the information transmission method may include the following steps:

[0155] Step 701: Send a first time indication information to the terminal in the first wave position. The first time indication information is used to indicate the time information for the terminal to receive the first neighbor cell configuration information of the first cell. The first wave position is located in the first cell. The first neighbor cell configuration information is used by the terminal to perform neighbor cell measurement.

[0156] Correspondingly, the terminal in the first wave position can receive the first time indication information sent by the network device, and then receive the first neighbor cell configuration information based on the time information indicated by the first time indication information.

[0157] For an explanation of step 701, please refer to other embodiments; it will not be repeated here.

[0158] In one possible implementation, when the network device sends the first time indication information to the terminal within the first wave position, the first wave position can be a non-edge wave position. In this case, the first neighbor cell configuration information is not sent to the terminal within the first wave position.

[0159] Step 702: Send the second neighbor cell configuration information of the first cell to the terminal located at the edge position. The second neighbor cell configuration information is used by the terminal located at the edge position to perform neighbor cell measurement. The edge position is located in the first cell and is adjacent to at least one neighbor cell of the first cell.

[0160] Correspondingly, when the terminal is at the edge position, it can receive the second neighbor cell configuration information sent by the network device, and then perform neighbor cell measurement based on the second neighbor cell configuration information.

[0161] In step 702, the edge position can be any edge position in the first cell that is different from the first position, and the number can be one or more, which is not limited in this disclosure.

[0162] In one possible implementation, at least one neighboring cell in step 702 may include at least one neighboring cell from all the neighboring cells of the first cell.

[0163] In one possible implementation, at least one neighboring cell in step 702 may include at least one neighboring cell from other neighboring cells. These other neighboring cells are those other than the source cell among the neighboring cells of the first cell.

[0164] In one possible implementation, steps 701 and 702 can be executed simultaneously, or steps 701 can be executed first and then steps 702, or steps 702 can be executed first and then steps 701. This disclosure does not impose any restrictions on this.

[0165] In one possible implementation, the configuration information of the second neighboring cell can be carried in the third system information block.

[0166] In one possible implementation, the third system information block can be any system information block, and the number of third system information blocks can be one or more, which is not limited in this disclosure.

[0167] As an example, the third system information block may include at least one of SIB2, SIB3, SIB4, SIB5, and SIB19.

[0168] In one possible implementation, the second neighbor cell configuration information may include configuration information related to the second neighbor cell. This configuration information may include the second neighbor cell's measurement parameters, reselection conditions, cell identifier, frequency resources used, and information about the network equipment where the neighbor cell resides, such as satellite ephemeris data. Similar to the first neighbor cell, the second neighbor cell may be a neighbor cell of the first cell that is adjacent to an edge radii, or at least one neighbor cell of the first cell. This at least one neighbor cell may include all neighbor cells of the first cell, or other neighbor cells of the first cell excluding the source cell; this disclosure does not impose any limitations on this.

[0169] The configuration information of the second neighboring cell includes configuration information related to the second neighboring cell. The second neighboring cell is a neighboring cell of the first cell that is adjacent to the edge position at multiple times. During the movement of the first cell, the terminal only needs to receive the configuration information of the second neighboring cell once within the edge position, thus avoiding the need to receive the configuration information of the second neighboring cell frequently.

[0170] In one possible implementation, where the second neighbor cell configuration information is carried in a third system information block, and the third system information block includes at least one of SIB2, SIB3, SIB4, SIB5, and SIB19, the information included in SIB2, SIB3, SIB4, SIB5, and SIB19 is as follows:

[0171] SIB2 may include cell reselection information related to the second neighboring cell;

[0172] SIB3 may include co-frequency cell reselection information related to the second neighboring cell;

[0173] SIB4 may include inter-frequency cell reselection information related to the second neighboring cell;

[0174] SIB5 may include inter-system cell reselection information related to the second neighbor cell;

[0175] SIB19 may include information about at least one of the NTN serving cell and satellite cell in the second neighboring cell.

[0176] It should be noted that the content of the second neighbor cell configuration information sent by the network device to different edge bands may be the same or different, and this disclosure does not impose any restrictions on this.

[0177] In one possible implementation, the network device can send a second time indication information to a terminal located at an edge position, wherein the second time indication information is used to indicate the end time of service for the edge position by the first cell. Accordingly, when the terminal is located at an edge position, it can receive the second time indication information sent by the network device, and then perform time-based measurement initiation based on the second time indication information.

[0178] The information transmission method of this disclosure embodiment will be described below with reference to Figure 3. The description will use the example of a first neighboring cell consisting only of neighboring cells that are adjacent to the first wavelength position, and a second neighboring cell consisting only of neighboring cells that are adjacent to the edge wavelength position. Here, "other neighboring cells" refers to neighboring cells of the first cell other than the source cell.

[0179] Referring to Figure 3, at the current time corresponding to the wave position distribution shown in Figure 3, the gray-filled wave positions in the first cell can be non-edge wave positions, while wave positions 1, 7, and 14-38 can be edge wave positions.

[0180] The first wave position can be any non-edge wave position in Figure 3. Since terminals within these wave positions do not need to perform neighbor cell measurements at the current time, the satellite may not send the first neighbor cell configuration information to the terminals within these wave positions. Instead, it may send a first time indication information to instruct the terminals to receive the time information of the first neighbor cell configuration information. The first time indication information may include a first indication and a second indication. Alternatively, the first time indication information may include a third indication. Since, as the first cell moves, the non-edge wave position will be adjacent to neighbor cell 3 at some later time, the first neighbor cell configuration information may include configuration information related to neighbor cell 3.

[0181] Taking wavelet 1 in the edge wavelet positions as an example, since the terminal in wavelet 1 needs to perform neighbor cell measurements at the current moment, the satellite can send the corresponding second neighbor cell configuration information to the terminal in wavelet 1 for the terminal to perform neighbor cell measurements. Since wavelet 1 is currently adjacent to neighbor cell 1, and as the first cell moves relative to the ground, wavelet 1 will become adjacent to neighbor cell 3 at some later moment. Therefore, the second neighbor cell configuration information sent to the terminal in wavelet 1 can include configuration information related to neighbor cell 1 and neighbor cell 3.

[0182] Similarly, taking position 7 in the edge positions as an example, since the terminal in position 7 needs to perform neighbor cell measurements at the current moment, the satellite can send the corresponding second neighbor cell configuration information to the terminal in position 7 for the terminal to perform neighbor cell measurements. Since position 7 is currently adjacent to neighbor cell 2, and as the first cell moves relative to the ground, position 7 will become adjacent to neighbor cell 3 at some later time. Therefore, the second neighbor cell configuration information sent to the terminal in position 7 can include the configuration information related to neighbor cells 2 and 3.

[0183] Taking beta position 20 in the edge beta positions as an example, since the terminal in beta position 20 needs to perform neighbor cell measurements at the current moment, the satellite can send the corresponding second neighbor cell configuration information to the terminal in beta position 20 for the terminal in beta position 20 to perform neighbor cell measurements. The second neighbor cell configuration information sent to the terminal in beta position 20 may include configuration information related to neighbor cell 1 and neighbor cell 3.

[0184] Similarly, taking wavelet 26 in the edge wavelet positions as an example, since the terminal in wavelet 26 needs to perform neighbor cell measurements at the current moment, the satellite can send the corresponding second neighbor cell configuration information to the terminal in wavelet 26 for the terminal to perform neighbor cell measurements. The second neighbor cell configuration information sent to the terminal in wavelet 26 may include configuration information related to neighbor cell 2 and neighbor cell 3.

[0185] Taking position 21 in the edge positions as an example, since the terminal in position 21 needs to perform neighbor cell measurements at the current moment, the satellite can send the corresponding second neighbor cell configuration information to the terminal in position 21 for the terminal to perform neighbor cell measurements. The second neighbor cell configuration information sent to the terminal in position 21 may include configuration information related to neighbor cell 3.

[0186] Analysis of Figure 3 shows that at any given time, the network device only needs to send the corresponding second neighbor cell configuration information to a small portion of the terminals in the edge positions of the first cell, and send the corresponding first time indication information to most of the terminals in the non-edge positions of the first cell, thereby saving the transmission power and channel resources of the network device.

[0187] It is worth noting that the information transmission method of the above embodiments of this disclosure is described using a communication system supporting single-frequency coverage as an example. Single-frequency coverage means that any frequency band is covered by a single cell using a specific carrier frequency. In one possible implementation, the information transmission method of this disclosure can also be applied to a communication system supporting multi-frequency overlapping coverage. Multi-frequency overlapping coverage means that the same frequency band can be covered by multiple cells, where different cells use different carrier frequencies.

[0188] It is understandable that in communication systems that support multi-frequency overlapping coverage, different priorities can be set for different carrier frequencies. The priority corresponding to the carrier frequency can be called frequency priority. Different cells have different frequency priorities, and terminals usually camp on the cell with the highest frequency priority.

[0189] In a communication system that supports multi-frequency overlapping coverage, if the frequency priority of the first cell covered by the network device is the highest, the information transmission method described in the above embodiment can continue to be used for any first frequency position.

[0190] In cases where the frequency priority of the first cell covered by the network device is not the highest, in order to enable a terminal in any first position to switch or reselect to another cell with a higher frequency priority than the first cell, in the above embodiment, regardless of whether the first position is an edge position or a non-edge position, the network device can send configuration information of a second cell covering the first position to the terminal in that first position. The second cell has a higher frequency priority than the first cell. The configuration information of the second cell is used by the terminal in the first position to perform neighbor cell measurement.

[0191] The following describes an information transmission method applied to a terminal according to an embodiment of this disclosure.

[0192] Figure 8 is a schematic flowchart of another information transmission method provided in an embodiment of this disclosure. It should be noted that the information transmission method in this embodiment is executed by an information transmission device. This information transmission device can be a terminal, or it can be configured within a terminal; this disclosure does not limit its use. In this embodiment, the information transmission device is described using a terminal as an example.

[0193] As shown in Figure 8, the information transmission method may include the following steps:

[0194] Step 801: Receive first time indication information sent by the network device. The first time indication information is used to indicate the time information when the terminal receives the first neighbor cell configuration information of the first cell, wherein the terminal is in the first position in the first cell.

[0195] After receiving the first time indication information, the terminal can receive the first neighbor cell configuration information based on the time information indicated in the first time indication information. The first neighbor cell configuration information is used by the terminal to perform neighbor cell measurements.

[0196] It should be noted that the relevant descriptions of step 801 can be found in other embodiments, and will not be repeated here.

[0197] The information transmission method provided in this embodiment allows a terminal to receive a first time indication information sent by a network device. The first time indication information is used to indicate the time information for the terminal to receive the first neighbor cell configuration information of the first cell. The terminal is located in the first wave position of the first cell. Since the terminal in the first wave position does not need to perform neighbor cell measurement, the network device may not send the first neighbor cell configuration information for neighbor cell measurement to the terminal, but instead send the first time indication information. Compared with sending the first neighbor cell configuration information, sending the first time indication information significantly reduces the consumption of the network device's transmission power and channel resources, thereby saving the network device's transmission power and channel resources.

[0198] In one possible implementation, the first time indication information includes a first indication and a second indication; wherein the first indication is used to indicate the end time of service for the first cell to the first wavelet; and the second indication is used to indicate the duration for which the network device sends the first neighbor cell configuration information.

[0199] In one possible implementation, the terminal can receive first neighbor cell configuration information sent by the network device between the first time and the service end time, wherein the first time is before the service end time and the interval between the first time and the service end time is a certain duration.

[0200] Understandably, the terminal can determine the first time based on the received first and second instructions, and in response to detecting the arrival of the first time, receive the first neighbor cell configuration information from the network device.

[0201] In one possible implementation, the first time indication information includes a third indication, wherein the third indication is used to indicate the start time for the network device to send the first neighbor cell configuration information.

[0202] In one possible implementation, the terminal can receive the first neighbor cell configuration information sent by the network device after the start time.

[0203] Understandably, the terminal can receive the first neighbor cell configuration information from the network device in response to the arrival of the start time indicated by the third indication.

[0204] In one possible implementation, when the terminal receives the first neighbor cell configuration information, the terminal is at an edge position, wherein the edge position is within the first cell and is adjacent to at least one neighbor cell of the first cell.

[0205] In one possible implementation, the first-time instruction information is carried in the first system information block.

[0206] In one possible implementation, the first system information block includes system information block SIB19.

[0207] In one possible implementation, at the moment when the terminal receives the first time indication information, the first wave position is a non-edge wave position; wherein, the non-edge wave position is spaced at least one wave position apart from at least one neighboring cell of the first cell; and / or, the non-edge wave position is adjacent to the source cell.

[0208] In one possible implementation, the configuration information of the first neighboring cell is carried in the second system information block.

[0209] In one possible implementation, the second system information block includes at least one of SIB2, SIB3, SIB4, SIB5, and SIB19.

[0210] In one possible implementation, SIB2 includes cell reselection information related to a first neighboring cell, where the first neighboring cell is a neighboring cell of the first cell that is adjacent to the first wave position, or at least one neighboring cell of the first cell.

[0211] SIB3 includes co-frequency cell reselection information related to the first neighboring cell;

[0212] SIB4 includes inter-frequency cell reselection information related to the first neighboring cell;

[0213] SIB5 includes inter-system cell reselection information related to the first neighboring cell;

[0214] SIB19 includes information on at least one of the non-terrestrial network NTN serving cells and satellite cells in the first neighboring cell.

[0215] In one possible implementation, when the terminal is at the edge position, it can receive second neighbor cell configuration information of the first cell sent by the network device. The second neighbor cell configuration information is used by the terminal to perform neighbor cell measurement. The edge position is located in the first cell and is adjacent to at least one neighbor cell of the first cell.

[0216] In one possible implementation, when the terminal is at an edge position, it can receive a second time indication information sent by a network device, wherein the second time indication information is used to indicate the end time of service of the first cell to the second position.

[0217] To clearly understand the information transmission method proposed in this disclosure, the process of information interaction between network devices and terminals is described below with reference to Figure 9. The network device is taken as a satellite-borne base station, and the terminal's position 1 is considered a non-edge position when it enters the coverage area of ​​cell 1 covered by the satellite-borne base station. After a period of time, position 1 changes from a non-edge position to an edge position. When position 1 changes from a non-edge position to an edge position, the satellite-borne base station begins to send the first neighbor cell configuration information to the terminal at position 1 through SIB2, SIB3, SIB4, SIB5, and SIB19 related to neighbor cells in the system information.

[0218] Among them, the first neighboring cell is the neighboring cell of cell 1 that is adjacent to wave position 1; SIB2 includes cell reselection information related to the first neighboring cell; SIB3 includes co-frequency cell reselection information related to the first neighboring cell; SIB4 includes inter-frequency cell reselection information related to the first neighboring cell; SIB5 includes inter-system cell reselection information related to the first neighboring cell; and SIB19 includes information related to at least one of the non-terrestrial network NTN serving cells and satellite cells in the first neighboring cell.

[0219] As shown in Figure 9, the method may include:

[0220] Step 901: When wavelet 1 is a non-edge wavelet, the satellite base station broadcasts the first system information at the wavelet level to the terminal at wavelet 1.

[0221] In the first system information, SIB1 does not schedule SIB2, SIB3, SIB4, and SIB5 (represented as SIB2~SIB5 in Figure 9), but schedules SIB19. SIB19 is configured with t-Service, t-neighborOSI, and local star ephemeris, but not neighboring star ephemeris.

[0222] Here, t-Service indicates the end time of service provided by cell 1 to wavelet 1. t-neighborOSI indicates the duration for which the satellite base station sends the first neighbor cell configuration information before wavelet 1 leaves the coverage area of ​​cell 1.

[0223] Correspondingly, the terminal at wave position 1 can receive SIB1 and SIB19 in the first system information.

[0224] It should be noted that in this embodiment, when describing the SIBs scheduled and unscheduled by SIB1, only the SIBs related to neighboring cells in the system information broadcast by the satellite base station are described. Other SIBs in the system information are not described.

[0225] It should be noted that the time when wave position 1 transforms from a non-edge wave position to an edge wave position can be the time obtained by subtracting t-neighborOSI from t-Service. Accordingly, step 901 can be executed before the time obtained by subtracting t-neighborOSI from t-Service.

[0226] Step 902: The terminal at position 1 detects the arrival of the time obtained by subtracting t-neighborOSI from t-Service and updates the system information.

[0227] Understandably, when the time obtained by subtracting t-neighborOSI from t-Service changes from a non-edge wavelet to an edge wavelet, the satellite base station can begin sending the first neighbor cell configuration information to terminals located at wavelet 1. After receiving t-Service and t-neighborOSI from SIB19, the terminal at wavelet 1 can monitor whether the time obtained by subtracting t-neighborOSI from t-Service has been reached. In response to detecting that the time obtained by subtracting t-neighborOSI from t-Service has been reached, it can update the system information.

[0228] In one embodiment of this disclosure, the terminal can immediately update the system information after detecting the arrival of the time obtained by subtracting t-neighborOSI from t-Service, without having to wait for the next system information modification period defined in the related art to update the system information and obtain new system information from the satellite base station.

[0229] Accordingly, as shown in Figure 9, the method may also include step 903, whereby the satellite base station adjusts the transmission of system information when the time obtained by subtracting t-neighborOSI from t-Service arrives.

[0230] Step 904: When wavelet 1 is an edge wavelet, the satellite base station broadcasts second system information at the wavelet level to the terminal at wavelet 1.

[0231] The second system information includes SIB1 scheduling SIB2, SIB3, SIB4, SIB5, and SIB19. SIB19 is configured with the local star ephemeris and neighboring star ephemeris.

[0232] In SIB19, t-Service can be configured to indicate the end time of service for spectral bit 1 in cell 1, or t-Service can be left unconfigured; this disclosure does not impose any restrictions on this.

[0233] Correspondingly, the terminal at wave position 1 can receive SIB1, SIB19, SIB2, SIB3, SIB4, and SIB5 (represented as SIB2 to SIB5 in Figure 9) in the second system information.

[0234] Step 905: The terminal performs neighbor cell measurement, uplink / downlink synchronization, reselection, or handover based on the first neighbor cell configuration information.

[0235] It is understandable that the terminal at position 1 can obtain the first neighbor cell configuration information based on the received SIB2, SIB3, SIB4, SIB5, and SIB19, and then perform neighbor cell measurement, uplink / downlink synchronization, reselection, or handover based on the first neighbor cell configuration information.

[0236] It should be noted that for satellite communication systems, the satellite's bandwidth coverage is typically tens of kilometers, and the terminal does not frequently change bandwidths. However, there are special scenarios where the terminal happens to be at the edge of multiple bandwidths. In such scenarios, when the terminal identifies beam ping-pong, it can store the system information of historical beams on the ping-pong loop to avoid repeatedly receiving the same system information. For example, in this embodiment, the terminal can store information such as t-service, t-neighborOSI, or first neighbor cell configuration information, second neighbor cell configuration information, etc., broadcast by each beam on the ping-pong loop, and select the information actually needed based on the actual beam it is camped on.

[0237] To conserve the transmission power and channel resources of network devices, this disclosure also provides another method for information transmission.

[0238] The information transmission method applied to network devices will be explained below with reference to Figure 10.

[0239] Figure 10 is a schematic flowchart of another information transmission method provided in an embodiment of this disclosure. It should be noted that the information transmission method in this embodiment is executed by an information transmission device. This information transmission device can be a network device, or configured within a network device; this disclosure does not limit its use. This embodiment uses a network device as an example for illustration.

[0240] As shown in Figure 10, the information transmission method may include the following steps:

[0241] Step 1001: Send third neighbor cell configuration information to the terminal located in the first wave position. The first wave position is located in the first cell of the network device. The third neighbor cell configuration information includes: configuration information related to the third neighbor cell adjacent to the first wave position in the neighbor cells of the first cell during the process of the first wave position being covered by the first cell. The third neighbor cell configuration information is used by the terminal to perform neighbor cell measurement.

[0242] In one possible implementation, the third neighboring cell can be any neighboring cell among the source cell and other neighboring cells adjacent to the first wave position during the process of the first wave position being covered by the first cell. Alternatively, the third neighboring cell can be any neighboring cell among other neighboring cells adjacent to the first wave position during the process of the first wave position being covered by the first cell.

[0243] The source cell is the cell within the first cell where the wavelength was located before being covered by the first cell. Other neighboring cells are the neighboring cells of the first cell other than the source cell.

[0244] The number of third neighboring zones can be one or more, and this disclosure does not limit this.

[0245] The configuration information related to the third neighbor cell can include the measurement parameters, reselection conditions, cell identifier, frequency resources used, and information about the network equipment in which the neighbor cell is located, such as the satellite ephemeris.

[0246] Referring to Figure 3, the configuration information of the third neighboring cell will be described exemplarily, taking any neighboring cell adjacent to the first wave position during the process of the first wave position being covered by the first cell.

[0247] Taking the first wave position as wave position 1 in Figure 3 as an example, since the current time corresponding to the wave position distribution shown in Figure 3, wave position 1 is adjacent to neighboring cell 1 and neighboring cell 4, at some time later, wave position 1 is adjacent to neighboring cell 1, or adjacent to neighboring cell 1 and neighboring cell 3, then the third neighboring cell configuration information sent to the terminal at wave position 1 may include the configuration information of neighboring cell 1 and neighboring cell 3.

[0248] Taking the first wave position as wave position 2 in Figure 3 as an example, since wave position 2 is adjacent to neighboring cell 4 at the current moment, and at some later moment, wave position 2 is adjacent to neighboring cell 3, the third neighboring cell configuration information sent to the terminal at wave position 2 may include the configuration information of neighboring cell 3.

[0249] Taking the first wave position as wave position 7 in Figure 3 as an example, since wave position 7 is adjacent to neighboring cell 2 and neighboring cell 4 at the current moment, at some later moment, wave position 7 will be adjacent to neighboring cell 2, or adjacent to neighboring cell 2 and neighboring cell 3. Then, the third neighboring cell configuration information sent to the terminal at wave position 7 may include the configuration information of neighboring cell 2 and neighboring cell 3.

[0250] In one possible implementation, the configuration information of the third neighboring cell can be carried in the fourth system information block.

[0251] The fourth system information block can be any system information block, and the number of fourth system information blocks can be one or more, which is not limited in this disclosure.

[0252] As an example, the fourth system information block may include at least one of SIB2, SIB3, SIB4, SIB5, and SIB19.

[0253] In one possible implementation, SIB2 includes cell reselection information related to the third neighboring cell;

[0254] SIB3 includes co-frequency cell reselection information related to the third neighbor cell;

[0255] SIB4 includes inter-frequency cell reselection information related to the third neighbor cell;

[0256] SIB5 includes inter-system cell reselection information related to the third neighbor cell;

[0257] SIB19 includes information on at least one of the NTN serving cells and satellite cells in the third neighboring cell.

[0258] In one possible implementation, the network device can continuously send third neighbor cell configuration information at preset time intervals to continuously indicate the third neighbor cell configuration information to the terminal in the first position.

[0259] Therefore, during the coverage of the first wave position by the first cell of the network device, the network device sends third neighbor cell configuration information to the terminal located in the first wave position. The third neighbor cell configuration information includes configuration information related to the third neighbor cells adjacent to the first wave position in the neighbor cells of the first cell during the coverage of the first wave position. The third neighbor cell configuration information is used by the terminal to perform neighbor cell measurement. Since the third neighbor cell configuration information includes the configuration information of some of the neighbor cells in all the neighbor cells of the first cell, compared with the related technology of sending the configuration information of all neighbor cells to the terminal in each wave position of the cell covered by the network device, the amount of data sent by the network device can be reduced, thereby saving transmission power and channel resources.

[0260] The information transmission method applied to the terminal will be explained below with reference to Figure 11.

[0261] Figure 11 is a schematic flowchart of another information transmission method provided in an embodiment of this disclosure. It should be noted that the information transmission method in this embodiment is executed by an information transmission device. This information transmission device can be a terminal, or configured within a terminal; this disclosure does not limit its use. This embodiment uses a terminal as an example for illustration.

[0262] As shown in Figure 11, the information transmission method may include the following steps:

[0263] Step 1101: Receive third neighbor cell configuration information sent by the network device, wherein the terminal is located in the first position of the first cell of the network device, and the third neighbor cell configuration information includes: configuration information related to the third neighbor cells adjacent to the first position in the neighbor cells of the first cell during the process of the first position being covered by the first cell.

[0264] Step 1102: Perform neighbor cell measurement based on the third neighbor cell configuration information.

[0265] It should be noted that the relevant descriptions of steps 1101-1102 can be found in other embodiments, and will not be repeated here.

[0266] The information transmission method provided in this embodiment allows a terminal to receive third neighbor cell configuration information sent by a network device, and then perform neighbor cell measurement based on the third neighbor cell configuration information. The terminal is located in the first position of the first cell of the network device. The third neighbor cell configuration information includes configuration information related to third neighbor cells adjacent to the first position in the neighbor cells of the first cell during the coverage of the first position. Since the third neighbor cell configuration information includes configuration information of some neighbor cells among all neighbor cells of the first cell, compared to the related technology where the network device sends all neighbor cell configuration information to the terminal in each position of the covered cell, the amount of data sent by the network device can be reduced, thereby saving transmission power and channel resources.

[0267] The information transmission method of the present disclosure has been described in detail above with reference to the accompanying drawings. The information transmission device of the present disclosure will be described below with reference to FIG12.

[0268] Figure 12 is a schematic diagram of an information transmission device provided in an embodiment of this disclosure. It should be noted that this information transmission device is a network device.

[0269] As shown in Figure 12, the information transmission device 1200 includes a transceiver module 1201, wherein:

[0270] The transceiver module 1201 is used to send a first time indication information to the terminal in the first wave position. The first time indication information is used to indicate the time information for the terminal to receive the first neighbor cell configuration information of the first cell. The first wave position is located in the first cell, and the first neighbor cell configuration information is used by the terminal to perform neighbor cell measurement.

[0271] In one possible implementation, the first-time indication information includes a first indication and a second indication; wherein,

[0272] The first instruction is used to indicate the end time of service for the first cell to the first wavelet; the second instruction is used to indicate the duration for which the network device sends the configuration information of the first neighboring cell.

[0273] In one possible implementation, the transceiver module 1201 is further used for:

[0274] Between the first time and the service end time, the first neighbor cell configuration information is sent to the terminal, wherein the first time is before the service end time and the interval between the first time and the service end time is a certain duration.

[0275] In one possible implementation, the first time indication information includes a third indication, wherein the third indication is used to indicate the start time for the network device to send the first neighbor cell configuration information.

[0276] In one possible implementation, the transceiver module 1201 is further used for:

[0277] After the start time, the first neighbor cell configuration information is sent to the terminal.

[0278] In one possible implementation, the first-time instruction information is carried in the first system information block.

[0279] In one possible implementation, the first system information block includes system information block SIB19.

[0280] In one possible implementation, the first wave position is a non-edge wave position; wherein the non-edge wave position is spaced at least one wave position apart from at least one neighboring cell of the first cell; and / or, the non-edge wave position is adjacent to the source cell.

[0281] In one possible implementation, the configuration information of the first neighboring cell is carried in the second system information block.

[0282] In one possible implementation, the second system information block includes at least one of SIB2, SIB3, SIB4, SIB5, and SIB19.

[0283] In one possible implementation, SIB2 includes cell reselection information related to a first neighboring cell, where the first neighboring cell is a neighboring cell of the first cell that is adjacent to the first wave position, or at least one neighboring cell of the first cell.

[0284] SIB3 includes co-frequency cell reselection information related to the first neighboring cell;

[0285] SIB4 includes inter-frequency cell reselection information related to the first neighboring cell;

[0286] SIB5 includes inter-system cell reselection information related to the first neighboring cell;

[0287] SIB19 includes information on at least one of the non-terrestrial network NTN serving cells and satellite cells in the first neighboring cell.

[0288] In one possible implementation, the transceiver module 1201 is further used for:

[0289] Send the second neighbor cell configuration information of the first cell to the terminal located at the edge position, wherein the second neighbor cell configuration information is used by the terminal located at the edge position to perform neighbor cell measurement, wherein the edge position is located within the first cell and is adjacent to at least one neighbor cell of the first cell.

[0290] In one possible implementation, the transceiver module 1201 is further used for:

[0291] The first neighbor cell configuration information is not sent to the terminal in the first wave position.

[0292] In one possible implementation, the transceiver module 1201 is further used for:

[0293] Send a second time indication message to the terminal located at the edge position, wherein the second time indication message is used to indicate the end time of service of the first cell to the edge position.

[0294] It should be noted that the foregoing explanation of the information transmission method embodiment applied to the network device side also applies to the information transmission device of this embodiment, and will not be repeated here.

[0295] Figure 13 is a schematic diagram of another information transmission device provided in an embodiment of this disclosure. It should be noted that this information transmission device is applied to a terminal.

[0296] As shown in Figure 13, the information transmission device 1300 includes: a transceiver module 1301, wherein:

[0297] The transceiver module 1301 is used to receive first time indication information sent by the network device. The first time indication information is used to indicate the time when the terminal receives the first neighbor cell configuration information of the first cell, wherein the terminal is in the first position within the first cell. The first neighbor cell configuration information is used by the terminal to perform neighbor cell measurements.

[0298] In one possible implementation, the first-time indication information includes a first indication and a second indication; wherein,

[0299] The first instruction is used to indicate the end time of service for the first cell to the first wave position;

[0300] The second instruction is used to indicate the duration for which the network device sends the first neighbor cell configuration information.

[0301] In one possible implementation, the transceiver module 1301 is also used for:

[0302] Between the first time and the service end time, the network device sends the first neighbor cell configuration information, wherein the first time is before the service end time and the interval between the first time and the service end time is a certain duration.

[0303] In one possible implementation, the first time indication information includes a third indication, wherein the third indication is used to indicate the start time for the network device to send the first neighbor cell configuration information.

[0304] In one possible implementation, the transceiver module 1301 is further configured to: receive first neighbor cell configuration information sent by the network device after the start time.

[0305] In one possible implementation, when the terminal receives the first neighbor cell configuration information, the terminal is at an edge position, wherein the edge position is within the first cell and is adjacent to at least one neighbor cell of the first cell.

[0306] In one possible implementation, the first-time instruction information is carried in the first system information block.

[0307] In one possible implementation, the first system information block includes system information block SIB19.

[0308] In one possible implementation, the first wave position is a non-edge wave position; wherein the non-edge wave position is spaced at least one wave position apart from at least one neighboring cell of the first cell; and / or, the non-edge wave position is adjacent to the source cell.

[0309] In one possible implementation, the configuration information of the first neighboring cell is carried in the second system information block.

[0310] In one possible implementation, the second system information block includes at least one of SIB2, SIB3, SIB4, SIB5, and SIB19.

[0311] In one possible implementation, SIB2 includes cell reselection information related to a first neighboring cell, where the first neighboring cell is a neighboring cell of the first cell that is adjacent to the first wave position, or at least one neighboring cell of the first cell.

[0312] SIB3 includes co-frequency cell reselection information related to the first neighboring cell;

[0313] SIB4 includes inter-frequency cell reselection information related to the first neighboring cell;

[0314] SIB5 includes inter-system cell reselection information related to the first neighboring cell;

[0315] SIB19 includes information on at least one of the non-terrestrial network NTN serving cells and satellite cells in the first neighboring cell.

[0316] In one possible implementation, the transceiver module 1301 is also used for:

[0317] When the terminal is at the edge position, it receives the second neighbor cell configuration information of the first cell sent by the network device. The second neighbor cell configuration information is used by the terminal to perform neighbor cell measurement. The edge position is located in the first cell and is adjacent to at least one neighbor cell of the first cell.

[0318] In one possible implementation, the transceiver module 1301 is also used for:

[0319] When the terminal is in an edge position, it receives a second time indication information sent by the network device, wherein the second time indication information is used to indicate the end time of service of the first cell for the second position.

[0320] It should be noted that the foregoing explanation of the information transmission method embodiment applied to the terminal also applies to the information transmission device of this embodiment, and will not be repeated here.

[0321] Figure 14 is a schematic diagram of another information transmission device provided in an embodiment of this disclosure. It should be noted that this information transmission device is a network device.

[0322] As shown in Figure 14, the information transmission device 1400 includes a transceiver module 1401, wherein:

[0323] The transceiver module 1401 is used to send third neighbor cell configuration information to the terminal located in the first wave position. The first wave position is located in the first cell of the network device. The third neighbor cell configuration information includes: configuration information related to the third neighbor cell adjacent to the first wave position in the neighbor cells of the first cell during the process of the first wave position being covered by the first cell. The third neighbor cell configuration information is used by the terminal to perform neighbor cell measurement.

[0324] It should be noted that the foregoing explanation of the information transmission method embodiment applied to the network device side also applies to the information transmission device of this embodiment, and will not be repeated here.

[0325] Figure 15 is a schematic diagram of another information transmission device provided in an embodiment of this disclosure. It should be noted that this information transmission device is applied to a terminal.

[0326] As shown in Figure 15, the information transmission device 1500 includes: a transceiver module 1501 and a processing module 1502, wherein:

[0327] The transceiver module 1501 is used to receive third neighbor cell configuration information sent by the network device. The terminal is located in the first position of the first cell of the network device. The third neighbor cell configuration information includes: configuration information related to the third neighbor cell adjacent to the first position in the neighbor cells of the first cell during the process of the first position being covered by the first cell.

[0328] The processing module 1502 is used to perform neighbor cell measurement based on the third neighbor cell configuration information.

[0329] It should be noted that the foregoing explanation of the information transmission method embodiment applied to the terminal also applies to the information transmission device of this embodiment, and will not be repeated here.

[0330] To implement the above embodiments, this disclosure also proposes a communication device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the information transmission method disclosed in the embodiments of this disclosure.

[0331] As shown in FIG16, FIG16 is a block diagram of a communication device for implementing an information transmission method according to an exemplary embodiment.

[0332] It should be noted that the communication device 1600 illustrated in Figure 16 can be a network device, a terminal, a chip, chip system, or processor that supports the implementation of any of the above methods in a network device, or a chip, chip system, or processor that supports the implementation of any of the above methods in a terminal. The communication device 1600 can be used to implement the methods described in the above method embodiments, and specific details can be found in the descriptions in the above method embodiments.

[0333] As shown in Figure 16, the communication device 1600 includes one or more processors 1601. The processor 1601 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminals, terminal chips, distributed units (DUs), or central units (CUs), execute programs, and process program data. The processor 1601 is used to invoke instructions to cause the communication device 1600 to execute any of the above methods.

[0334] In some embodiments, the communication device 1600 further includes one or more memories 1602 for storing instructions. In some embodiments, all or part of the memories 1602 may also be located outside the communication device 1600.

[0335] In some embodiments, the communication device 1600 further includes one or more transceivers 1603. When the communication device 1600 includes one or more transceivers 1603, the communication steps such as sending and receiving in the above method are performed by the transceivers 1603, and other steps are performed by the processor 1601.

[0336] In some embodiments, transceiver 1603 may include a receiver and a transmitter, which may be separate or integrated together. In some embodiments, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0337] In some embodiments, the communication device 1600 further includes one or more interface circuits 1604 connected to the memory 1602. The interface circuits 1604 can be used to receive signals from the memory 1602 or other devices, and can be used to send signals to the memory 1602 or other devices. For example, the interface circuits 1604 can read instructions stored in the memory 1602 and send the instructions to the processor 1601.

[0338] The communication device 1600 described in the above embodiments may be a terminal or a network device, but the scope of the communication device 1600 described in this disclosure is not limited thereto, and the structure of the communication device 1600 may not be limited by FIG16. The communication device may be a standalone device or may be part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit (IC), or chip, or chip system or subsystem; (2) a collection of one or more ICs, in some embodiments, the above IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal, smart terminal, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0339] Figure 17 is a schematic diagram of a chip structure according to an exemplary embodiment. For cases where the communication device 1600 can be a chip or a chip system, please refer to the schematic diagram of the chip 1700 shown in Figure 17, but it is not limited thereto.

[0340] Chip 1700 includes one or more processors 1701, which are used to invoke instructions to cause chip 1700 to perform any of the above methods.

[0341] In some embodiments, chip 1700 further includes one or more memories 1702 for storing instructions. In some embodiments, all or part of the memories 1702 may be located outside of chip 1700.

[0342] In some embodiments, chip 1700 further includes one or more interface circuits 1703 connected to memory 1702. Interface circuits 1703 can be used to receive signals from memory 1702 or other devices, and can also be used to send signals to memory 1702 or other devices. For example, interface circuit 1703 can read instructions stored in memory 1702 and send those instructions to processor 1701. In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0343] This disclosure also proposes a communication system, which includes a network device and a terminal; wherein the network device is configured to perform the method applied to the network device in the above embodiments, and the terminal is configured to perform the method applied to the terminal in the above embodiments.

[0344] This disclosure also proposes a storage medium storing computer-executable instructions that, when executed on the communication device 1600, such as by a processor in the communication device 1600, cause the communication device 1600 to perform any of the methods described above. In some embodiments, the storage medium is an electronic storage medium. In some embodiments, the storage medium is a computer-readable storage medium, but is not limited thereto; it may also be a storage medium readable by other devices. In some embodiments, the storage medium may be a non-transitory storage medium, but is not limited thereto; it may also be a temporary storage medium.

[0345] This disclosure also proposes a program product, including a computer program, which, when executed by the communication device 1600, such as by a processor in the communication device 1600, causes the communication device 1600 to perform any of the above methods. In some embodiments, the program product is a computer program product.

[0346] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

[0347] It is understood that the aforementioned information transmission device, communication equipment, communication system, storage medium, program product, and computer program are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0348] It should be noted that, in the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0349] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0350] It should be understood that various parts of this disclosure can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0351] Those skilled in the art will understand that all or part of the steps of the methods described in the above embodiments can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium. When executed, the program includes one or a combination of the steps of the method embodiments.

[0352] Furthermore, the functional units in the various embodiments of this disclosure can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0353] The storage media mentioned above can be read-only memory, disk, or optical disk, etc.

[0354] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0355] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. An information transmission method, characterized in that, The method is applied to a network device, and the method includes: Send a first time indication message to the terminal in the first wave position. The first time indication message is used to indicate the time information for the terminal to receive the first neighbor cell configuration information of the first cell. The first wave position is located in the first cell, and the first neighbor cell configuration information is used by the terminal to perform neighbor cell measurement.

2. The method according to claim 1, characterized in that, The first time indication information includes a first indication and a second indication; wherein, The first indication is used to indicate the end time of service for the first wavelet by the first cell; the second indication is used to indicate the duration for which the network device sends the first neighbor cell configuration information.

3. The method according to claim 2, characterized in that, The method further includes: Between the first time and the service end time, the first neighbor cell configuration information is sent to the terminal, wherein the first time is before the service end time and the interval between the first time and the service end time is the duration.

4. The method according to claim 1, characterized in that, The first time indication information includes a third indication, wherein the third indication is used to indicate the start time of the network device sending the first neighbor cell configuration information.

5. The method according to claim 4, characterized in that, The method further includes: After the start time, the first neighbor cell configuration information is sent to the terminal.

6. The method according to any one of claims 1-5, characterized in that, The first time indication information is carried in the first system information block.

7. The method according to claim 6, characterized in that, The first system information block includes system information block SIB19.

8. The method according to any one of claims 1-7, characterized in that, The first wave position is a non-edge wave position; wherein the non-edge wave position is spaced at least one wave position apart from at least one neighboring cell of the first cell; and / or, the non-edge wave position is adjacent to the source cell.

9. The method according to any one of claims 1-8, characterized in that, The configuration information of the first neighboring cell is carried in the second system information block.

10. The method according to claim 9, characterized in that, The second system information block includes at least one of SIB2, SIB3, SIB4, SIB5, and SIB19.

11. The method according to claim 10, characterized in that, The SIB2 includes cell reselection information related to the first neighboring cell, wherein the first neighboring cell is a neighboring cell of the first cell that is adjacent to the first wave position, or at least one neighboring cell of the first cell. The SIB3 includes co-frequency cell reselection information related to the first neighboring cell; The SIB4 includes inter-frequency cell reselection information related to the first neighboring cell; The SIB5 includes inter-system cell reselection information related to the first neighboring cell; The SIB19 includes information about at least one of the non-terrestrial network NTN serving cells and satellite cells in the first neighboring cell.

12. The method according to any one of claims 1-11, characterized in that, The method further includes: Send the second neighbor cell configuration information of the first cell to the terminal located at the edge position, wherein the second neighbor cell configuration information is used for the terminal located at the edge position to perform neighbor cell measurement, wherein the edge position is located within the first cell and is adjacent to at least one neighbor cell of the first cell.

13. The method according to claim 12, characterized in that, The method further includes: The first neighbor cell configuration information is not sent to the terminal located in the first wave position.

14. The method according to claim 12 or 13, characterized in that, The method further includes: Send a second time indication message to the terminal located at the edge position, wherein the second time indication message is used to indicate the end time of service of the first cell to the edge position.

15. An information transmission method, characterized in that, The method is applied to a terminal, and the method includes: The terminal receives a first time indication information sent by a network device. The first time indication information is used to indicate the time information when the terminal receives the first neighbor cell configuration information of the first cell, wherein the terminal is located in the first wave position within the first cell.

16. The method according to claim 15, characterized in that, The first time indication information includes a first indication and a second indication; wherein, The first indication is used to indicate the end time of service for the first wave position by the first cell; The second indication is used to indicate the duration for which the network device sends the first neighbor cell configuration information.

17. The method according to claim 16, characterized in that, The method further includes: Between the first time and the service end time, the network device sends the first neighbor cell configuration information, wherein the first time is before the service end time and the interval between the first time and the service end time is the duration.

18. The method according to claim 15, characterized in that, The first time indication information includes a third indication, wherein the third indication is used to indicate the start time of the network device sending the first neighbor cell configuration information.

19. The method according to claim 18, characterized in that, The method further includes: After the start time, the first neighbor cell configuration information sent by the network device is received.

20. The method according to any one of claims 15-19, characterized in that, When the terminal receives the first neighbor cell configuration information, the terminal is at an edge position, wherein the edge position is within the first cell and is adjacent to at least one neighbor cell of the first cell.

21. The method according to any one of claims 15-20, characterized in that, The first time indication information is carried in the first system information block.

22. The method according to claim 21, characterized in that, The first system information block includes system information block SIB19.

23. The method according to any one of claims 15-22, characterized in that, The first wave position is a non-edge wave position; wherein the non-edge wave position is spaced at least one wave position apart from at least one neighboring cell of the first cell; and / or, the non-edge wave position is adjacent to the source cell.

24. The method according to any one of claims 15-23, characterized in that, The configuration information of the first neighboring cell is carried in the second system information block.

25. The method according to claim 24, characterized in that, The second system information block includes at least one of SIB2, SIB3, SIB4, SIB5, and SIB19.

26. The method according to claim 25, characterized in that, The SIB2 includes cell reselection information related to the first neighboring cell, wherein the first neighboring cell is a neighboring cell of the first cell that is adjacent to the first wave position, or at least one neighboring cell of the first cell. The SIB3 includes co-frequency cell reselection information related to the first neighboring cell; The SIB4 includes inter-frequency cell reselection information related to the first neighboring cell; The SIB5 includes inter-system cell reselection information related to the first neighboring cell; The SIB19 includes information about at least one of the non-terrestrial network NTN serving cells and satellite cells in the first neighboring cell.

27. The method according to any one of claims 15-26, characterized in that, The method further includes: When the terminal is at the edge position, it receives the second neighbor cell configuration information of the first cell sent by the network device. The second neighbor cell configuration information is used by the terminal to perform neighbor cell measurement. The edge position is located in the first cell and is adjacent to at least one neighbor cell of the first cell.

28. The method according to claim 27, characterized in that, The method further includes: When the terminal is in the edge band position, it receives second time indication information sent by the network device, wherein the second time indication information is used to indicate the end time of service of the first cell for the second band position.

29. An information transmission device, characterized in that, The device is used in a network device, and the device includes: The transceiver module is used to send a first time indication information to a terminal located in the first wave position. The first time indication information is used to indicate the time information for the terminal to receive the first neighbor cell configuration information of the first cell. The first wave position is located within the first cell, and the first neighbor cell configuration information is used by the terminal to perform neighbor cell measurement.

30. An information transmission device, characterized in that, The device is used in a terminal, and the device includes: The transceiver module is used to receive first time indication information sent by the network device. The first time indication information is used to indicate the time information for the terminal to receive the first neighbor cell configuration information of the first cell, wherein the terminal is located in the first wave position within the first cell.

31. A communication device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the method as described in any one of claims 1-14, or the method as described in any one of claims 15-28.

32. A communication system, characterized in that, The method includes a network device and a terminal, wherein the network device is used to perform the method of any one of claims 1-14, and the terminal is used to perform the method of any one of claims 15-28.

33. A chip, characterized in that, The device includes one or more interface circuits and one or more processors; the interface circuits are configured to receive signals from the memory of the communication device and send the received signals to the processors, the received signals including computer instructions stored in the memory, which, when executed by the processors, cause the communication device to perform the method of any one of claims 1-14, or the method of any one of claims 15-28.

34. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method of any one of claims 1-14, or the method of any one of claims 15-28.

35. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method of any one of claims 1-14, or the method of any one of claims 15-28.

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