Methods, equipment, and storage media for determining measurement configuration parameters

Abstract

This application discloses a method, device, and storage medium for determining measurement configuration parameters; wherein the method is applied to a network device; the network device is located on a satellite; the method includes: determining K measurement configuration parameters associated with K sub-regions in a first region set to obtain a configuration parameter set; wherein the K sub-regions in the first region set are obtained by the network device dividing the signal coverage area of ​​the network device; K is an integer greater than or equal to 2; sending at least one measurement configuration parameter from the configuration parameter set to a terminal device that has established a communication connection with the network device, so that the terminal device can perform cell measurement based on the at least one measurement configuration parameter.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a method, device and storage medium for determining measurement configuration parameters. Background Technology

[0002] For terrestrial networks comprised of ground-based communication infrastructure, cell measurements are typically performed using pre-defined, fixed measurement configuration parameters. For example, in cellular communication network systems, cell measurements are usually performed within a pre-defined, fixed measurement window duration. However, for non-terrestrial networks (NTNs) that include network equipment, the configuration methods for network equipment differ from those for terrestrial base stations. This results in different reasons for cell handover for terminal devices accessing network equipment compared to those accessing terrestrial networks. Therefore, the measurement configuration parameters in terrestrial networks cannot meet the cell measurement requirements of NTN networks. Summary of the Invention

[0003] Based on the above problems, this application provides a method, device and storage medium for determining measurement configuration parameters.

[0004] The technical solution provided in this application is as follows:

[0005] This application provides a method for determining measurement configuration parameters, the method being applied to a network device; the network device is located on a satellite; the method includes:

[0006] Determine the signal coverage area of ​​the network device;

[0007] K measurement configuration parameters associated with K sub-regions in the first region set are determined to obtain a configuration parameter set; wherein, the K measurement configuration parameters in the first region set are obtained by the network device dividing the signal coverage area of ​​the network device; K is an integer greater than or equal to 2;

[0008] At least one measurement configuration parameter from the set of configuration parameters is sent to a terminal device that has established a communication connection with the network device, so that the terminal device can perform cell measurement based on the at least one measurement configuration parameter.

[0009] This application embodiment also provides a method for determining measurement configuration parameters, the method being applied to a terminal device; the method includes:

[0010] The system receives at least one measurement configuration parameter sent by a network device; wherein the at least one measurement configuration parameter is included in a configuration parameter set; K measurement configuration parameters in the configuration parameter set are associated with K sub-regions in a first region set; the configuration parameter set is determined by the network device installed on the satellite; the first region set is obtained by the network device dividing the signal coverage area of ​​the network device.

[0011] This application also provides a network device, which is installed on a satellite; the network device includes a first processor and a first memory; the first memory stores a first computer program; when the first computer program is executed by the first processor, it can implement the measurement configuration parameter determination method for the network device as described above.

[0012] This application also provides a terminal device, which includes a second processor and a second memory; the second memory stores a second computer program; when the second computer program is executed by the second processor, it can implement the measurement configuration parameter determination method applied to the terminal device as described above.

[0013] This application also provides a computer-readable storage medium storing a third computer program; when executed by a processor of an electronic device, the third computer program can implement the measurement configuration parameter determination method applied to network devices or terminal devices as described above.

[0014] The measurement configuration parameter determination method for network devices provided in this application includes a first region set of K sub-regions, which is obtained by dividing the signal coverage area of ​​the satellite network device. This achieves fine-grained division and management of the signal coverage area of ​​the satellite network device. Furthermore, by determining K measurement configuration parameters associated with the K sub-regions in the first region set, and obtaining a configuration parameter set, the network device can perform differentiated and targeted management and control of cell measurement processes on terminal devices distributed in the K sub-regions, even when the K measurement configuration parameters are different. This improves the targeting of cell measurement for terminal devices distributed in different sub-regions, reduces the negative impact on the throughput and power consumption of terminal devices, and improves the stability of communication connections between terminal devices distributed in different sub-regions. Based on this, at least one measurement configuration parameter from the configuration parameter set is sent to the terminal device that has established a communication connection with the network device. This allows the terminal device to reduce unnecessary cell measurement operations and improve the flexibility and targeting of cell measurement during cell measurement based on at least one measurement configuration parameter, thereby improving cell handover efficiency, enhancing the stability of terminal device service data processing, and ultimately meeting the cell measurement requirements of NTN. Attached Figure Description

[0015] Figure 1 A flowchart illustrating a method for determining measurement configuration parameters for network devices, provided in an embodiment of this application;

[0016] Figure 2 A schematic diagram illustrating the principle of the physical meaning of ephemeris data;

[0017] Figure 3 A schematic diagram of the signal coverage area of ​​a network device;

[0018] Figure 4 A schematic diagram showing the overlapping signal coverage areas between adjacent network devices;

[0019] Figure 5A A schematic diagram illustrating the principle of cell handover for terminal devices distributed within the signal coverage area of ​​a network device, as provided in an embodiment of this application.

[0020] Figure 5B Another schematic diagram illustrating the principle of cell handover for terminal devices distributed within the signal coverage area of ​​the network device provided in this application embodiment;

[0021] Figure 6 This is a schematic diagram illustrating the principle of signal transmission delay provided in an embodiment of this application;

[0022] Figure 7 A schematic diagram of the partitioning structure of the first region set provided in an embodiment of this application;

[0023] Figure 8 A schematic diagram illustrating the principle of updating the region boundary of the target sub-region as provided in an embodiment of this application;

[0024] Figure 9 A schematic diagram illustrating the principle of determining frequency measurement configuration parameters provided in an embodiment of this application;

[0025] Figure 10 This is a schematic diagram illustrating the principle of configuring the measurement window duration in an embodiment of this application.

[0026] Figure 11 A flowchart illustrating the method for determining measurement configuration parameters for terminal devices provided in this application embodiment;

[0027] Figure 12A This is a schematic diagram of the network device provided in the embodiments of this application;

[0028] Figure 12B This is a schematic diagram of the structure of the terminal device provided in the embodiments of this application;

[0029] Figure 13 A schematic diagram illustrating the process of configuring measurement configuration parameters for a terminal device using a network device according to an embodiment of this application;

[0030] Figure 14 This is a schematic diagram illustrating the process of a terminal device performing cell measurement according to an embodiment of this application. Detailed Implementation

[0031] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0032] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0033] In Long Term Evolution (LTE) systems, base stations send measurement configuration parameters to user equipment (UE) via dedicated signaling. For example, when the UE and base station are connected, if the base station detects an update to the measurement configuration, it will send updated or partially updated measurement configuration parameters. As shown in Table 1, in LTE systems, the measurement signal received by the UE is the Cell Reference Signal (CRS). The UE uses the CRS to measure indicators such as Reference Signal Receiving Power (RSRP). Regarding the measurement signal period, in LTE systems, the CRS is continuously transmitted regardless of whether it is a same-frequency measurement period or an inter-frequency measurement period. The base station continuously transmits the CRS and evenly and discretely sets it in each resource block (RB), with one CRS every three symbol bits. Therefore, the UE can easily receive the CRS and perform cell measurements based on it.

[0034] Furthermore, under the condition of same-frequency measurement, there is no conflict between cell measurement and service data transmission and reception. However, when the signal quality of the serving cell degrades to the corresponding threshold, the base station will initiate inter-frequency or inter-system measurement and activate the measurement GAP mode. At this time, the serving cell needs some measurement GAPs for the UE to perform inter-frequency or inter-system measurements. The GAP mode is divided into gp0 mode and gp1 mode, as shown in Table 1. The GAP period of gp0 mode is 40ms, and the GAP period of gp1 mode is 80ms. Meanwhile, since the measurement GAP time needs to be synchronized with the synchronization signal of the target cell to realize the measurement of the reference signal (RS), and the period of the synchronization signal is 5ms, the start and end phases of the measurement GAP need to reserve 0.5ms for the radio frequency module for frequency conversion. Therefore, the duration of the measurement GAP is fixed at 6ms in the above two GAP modes.

[0035] On the other hand, for fifth-generation mobile communication systems (5G) thFor Generation 5G New Radio (NR), the measurement signal is either a synchronization signal or a Physical Broadcast Channel (PBCH) block (SSB). However, in this system, the UE does not need to perform cell measurements periodically based on the SSB. Instead, it can configure an appropriate measurement period according to channel conditions to reduce unnecessary cell measurements and UE power consumption. To facilitate cell measurements by the UE, 5G NR configures a Radio Resource Management Measurement Timing Configuration (SMTC) window based on the synchronization signal and the Physical Broadcast Channel (PBCH) block to inform the UE of the measurement period and the timing of SSB measurements.

[0036] Table 1

[0037]

[0038] The SMTC window period can be set within the same time range of SSBs, depending on the number of SSBs transmitted by the cell under test. As shown in Table 1, for the same-frequency measurement period and measurement time period, the SMTC window duration can be set to 1ms, 2ms, 3ms, 4ms, or 5ms, and the UE will measure all SSBs falling within the SMTC window. In the 5G NR system, the measurement interval for inter-frequency or inter-system measurements can be 1.5ms, 3ms, 3.5ms, 4ms, 5ms, or 6ms, and the GAP period can be 20ms, 40ms, 80ms, or 160ms.

[0039] Meanwhile, traditional cellular networks such as LTE and 5G rely on terrestrial network infrastructure for development. The 3rd Generation Partnership Project (3GPP) integrates network equipment into 5G networks, forming NTNs, thereby improving the performance of terrestrial 5G networks. Therefore, for NTNs, how to efficiently and flexibly implement cell measurement to ensure the service data processing needs of UEs has become an urgent technical problem to be solved.

[0040] However, as the statistical results in Table 1 show, although the measurement configuration parameters for 5G NR have changed, cell measurements are still performed based on a few pre-set, fixed parameters. Meanwhile, for NTN, the main reason for UE cell handover is the change in the location of network equipment, which differs from the reasons for UE cell handover in terrestrial cellular mobile communication. Therefore, directly applying the existing measurement configuration parameters from LTE or 5G NR to the cell measurement process of the 5G NTN system cannot meet the cell measurement requirements of the NTN network.

[0041] Based on the above problems, this application provides a method, device and storage medium for determining measurement configuration parameters.

[0042] This application first provides a method for determining measurement configuration parameters for network devices. This method can be implemented by the processor of the network device. The processor can be at least one of the following: Application-Specific Integrated Circuit (ASIC), Digital Signal Processor (DSP), Digital Signal Processing Device (DSPD), Programmable Logic Device (PLD), Field Programmable Gate Array (FPGA), Central Processing Unit (CPU), controller, microcontroller, and microprocessor.

[0043] In one implementation, the network equipment may include base station equipment mounted on an Earth satellite; exemplarily, the Earth satellite may include an artificial satellite; exemplarily, the artificial satellite may include a near-Earth satellite.

[0044] In the embodiments of this application, when the network device is a base station device, the base station device set up on the satellite can also be called a satellite-borne base station.

[0045] Figure 1 This is a flowchart illustrating a method for determining measurement configuration parameters for network devices provided in an embodiment of this application, as shown below. Figure 1 As shown, the process may include the following steps:

[0046] Step 101: Determine the K measurement configuration parameters associated with the K sub-regions in the first region set to obtain the configuration parameter set.

[0047] In this set, the K sub-regions are obtained by dividing the signal coverage area of ​​the network device by the network device; K is an integer greater than or equal to 2.

[0048] In one implementation, the signal coverage area can be determined based on the settings parameters of the network device; for example, the settings parameters may include the location parameters and antenna configuration parameters of the network device.

[0049] For example, the location parameters of the network device can be calculated based on the current time and ephemeris data; for example, the ephemeris data can be obtained from the satellite information database stored in the network device, or it can be obtained by the network device from other devices, or it can be obtained by receiving broadcast data, and this application embodiment does not limit this; wherein, other devices may include adjacent network devices of the network device or data management devices that have established a communication connection with the network device.

[0050] For example, after acquiring ephemeris data, the network device can update the ephemeris data at a certain period. For example, the update period of the ephemeris data can be fixed or not, and can be determined according to the changing requirements of the spatial environment in which the network device is located and the necessity of updating the ephemeris data.

[0051] For example, ephemeris data may include orbital information of the satellite carrying the network device; wherein, ephemeris data may have different representations, such as orbital plane parameters and satellite-level parameters as shown in Table 2. The orbital plane parameters are used to determine the orbital plane, and include semi-circle, eccentricity, orbital inclination, right ascension of the ascending node, and perigee distance. The satellite-level parameters are used to determine the precise position of the satellite, and include the mean perigee angle at the reference time point and the ephemeris reference time.

[0052] The physical meaning of each parameter in Table 2 can be seen as follows: Figure 2 As shown, Figure 2 This is a schematic diagram illustrating the principle of the physical meaning of ephemeris data. For example... Figure 2 As shown, in the three-dimensional spatial coordinate system, the origin of the coordinate system can be the Earth's center, network equipment can be installed on satellite 201, the orbital plane 202 can be the plane formed by the orbit of satellite 201, and the plane formed by the horizontal and vertical coordinate axes in the three-dimensional coordinate system can be the equatorial plane 203; where, the right ascension of the ascending node 204, i.e., Ω0, is the angular distance between the equatorial plane 203 and the orbital plane 202, the perigee angular distance ω is the angle formed by the Earth's center, the right ascension of the ascending node 204, and the perigee 205, the orbital inclination i0 is the angle between the equatorial plane 203 and the orbital plane 202, and M0 is the mean perigee angle at the reference time point.

[0053] Table 2

[0054]

[0055] For example, antenna configuration parameters may include equivalent satellite antenna aperture, equivalent isotropically radiated power (EIRP), maximum satellite transmit gain, 3dB beamwidth, and satellite beam diameter.

[0056] Figure 3 This is a schematic diagram of the signal coverage area of ​​a network device. (Example:) Figure 3 As shown, the signal coverage area 302 of network device 301 can be a ring-shaped closed area, wherein the link between terminal devices 303 in the signal coverage area 302 is a service link 304, and network device 301 is connected to core network 307 through power supply link 306 between it and gateway device 305.

[0057] In one implementation, when the satellite carrying the network equipment is a near-Earth satellite, the network equipment can perform signal forwarding in regenerative mode, thereby enabling it to perform most of the functions of a base station.

[0058] In practical applications, after acquiring ephemeris data, network devices can not only determine their own signal coverage area, but also the location and signal coverage area of ​​their neighboring network devices at time n. This allows them to determine the overlapping areas of signal coverage between the network device and its neighboring devices.

[0059] In this application, the nth time can be the current time.

[0060] Figure 4 This is a schematic diagram showing the overlapping signal coverage areas between adjacent network devices. (Example) Figure 4 As shown, the first network device 401, the second network device 402, and the third network device 403 are arranged adjacent to each other in sequence. It is assumed that the signal coverage area of ​​each network device is a closed ring-shaped area, for example... Figure 4 The signal coverage areas of the first network device 401 to the third network device 403 can be the first cell 404, the second cell 405 and the third cell 406, respectively; wherein, there is a first overlapping area 407 between the first cell 404 and the second cell 405, and there is a second overlapping area 408 between the second cell 405 and the third cell 406.

[0061] For example, the first network device can be the network device in the foregoing embodiments, and the second network device can be a neighboring network device set up by a neighboring satellite of the satellite, that is, the second network device can be a neighboring network device of the first network device.

[0062] Because the speed at which near-Earth satellites orbit the Earth is different from the speed at which the Earth rotates, and because the speed at which near-Earth satellites orbit the Earth is relatively high, in NTN, the reason for cell handover of a UE that is connected to a network device is due to the high-speed flight of the network device located on the near-Earth satellite, while the cost comes from the ground displacement of the UE on the ground.

[0063] Figure 5A This is a schematic diagram illustrating the principle of cell handover for terminal devices distributed within the signal coverage area of ​​the network device provided in this application embodiment. Figure 5A In China, with Figure 4 Taking the first network device 401 and the second network device 402 as examples, the principle of cell handover for terminal devices distributed at different locations within the signal coverage area of ​​the network devices is explained.

[0064] like Figure 5A As shown, in the first overlapping region 407 of the first cell 404 and the second cell 405, the critical region 501 connecting the intersection of the first cell 404 and the second cell 405 (for ease of explanation) Figure 5A The region is simplified to a line segment and can be the area formed by the critical point of cell handover between the first cell 404 and the second cell 405.

[0065] exist Figure 5A In this process, the first terminal 502 can be distributed at the geometric center of the first cell 404, and the second terminal 503 can be distributed in the first overlapping area 407 on the side close to the geometric center of the first cell 404. That is to say, the current serving cell of the first terminal 502 and the second terminal 503 is the first cell 404.

[0066] Figure 5A The middle arrow indicates the flight direction of the first network device 401 and the second network device 402. As the first network device 401 and the second network device 402 continue to fly in the direction indicated by the arrow, the actual signal coverage area of ​​the first network device 401 and the second network device 402 also moves accordingly.

[0067] It should be noted that the first terminal 502 and the second terminal 503 can be the mobile terminals in the aforementioned embodiments.

[0068] Figure 5B This is another schematic diagram illustrating the principle of cell handover for terminal devices distributed within the signal coverage area of ​​the network device provided in this application embodiment. For example... Figure 5BAs shown, as the first network device 401 and the second network device 402 continue to fly in the direction indicated by the arrow, the actual signal coverage area of ​​the first network device 401 and the second network device 402 also moves accordingly. This causes the second terminal 503, which is located on the geometric center side of the first overlapping area 407 near the first cell 404 at time T1, to move to the critical area 501 at time T2, which is the geographical boundary for cell handover between the first cell 404 and the second cell 405. In other words, at time T2, the probability of the second terminal 503 performing cell handover is very high. Therefore, in order to determine whether cell handover needs to be performed, the second terminal 503 needs to frequently perform cell measurements before and after time T2. Meanwhile, the first terminal 502, which is located at the geometric center of the first cell 404 at time T1, has not yet moved to the first overlapping area 407 at time T2. That is, the first terminal 502 does not need to perform frequent cell measurements before and after time T2.

[0069] In this case, if the measurement configuration scheme in the cellular mobile communication network is adopted, the measurement configuration scheme will cause the second terminal 503 to be unable to perform cell measurement in a timely manner during the period before and after time T2. For the first terminal 502, the unnecessary cell measurement will cause the first terminal 502 to generate additional power consumption and reduce the service data transmission time, thereby reducing the throughput of the first terminal 502.

[0070] For example, for LTE systems, whether it's intra-frequency measurement, inter-frequency measurement, or inter-system measurement, the window duration for cell measurement is fixed and the range of measurement period selection is limited; while... Figures 5A to 5B In the NTN consisting of the first network device 401 and the second network device 402 shown, the urgency of cell measurement for terminal devices in different areas varies. If all terminal devices perform unnecessary cell measurement procedures frequently and indiscriminately, it can easily lead to a decrease in system throughput. Furthermore, in the LTE system, the low-frequency bandwidth cannot meet the high-speed service data processing requirements, while the NTN uses a high-frequency band. This inevitably results in a limited beam coverage of the NTN, which cannot meet the requirements of performing cell measurement based on CRS in the low-frequency band of the LTE system.

[0071] Based on the above considerations, when network equipment is set up on near-Earth satellites, in order to improve the real-time performance of cell handover for terminal equipment located in the edge area of ​​the network equipment's signal coverage area, and at the same time reduce the power consumption of terminal equipment located in the non-edge area of ​​the signal coverage area and the negative impact on throughput, it is necessary to divide the signal coverage area of ​​the network equipment into multiple sub-regions according to the urgency of the cell handover performed by the terminal equipment, and control the terminal equipment distributed in different sub-regions to perform different cell measurements.

[0072] In one implementation, the first region set can be obtained in the following way:

[0073] The signal coverage area is divided into edge sub-regions and central sub-regions, and the edge sub-regions and central sub-regions are determined as the first region set.

[0074] Based on the configuration of adjacent network devices on adjacent satellites, the edge region of the signal coverage area is divided to obtain a set of edge sub-regions with the same number of adjacent network devices. Then, the set of edge sub-regions and the central sub-region are determined as the first region set. For example, the edge region of the signal coverage area can be divided according to the orientation between adjacent network devices.

[0075] By using artificial intelligence, the signal coverage area is divided to obtain the first set of regions.

[0076] It should be noted that the shapes of the sub-regions in the first region set can be different from each other.

[0077] In one implementation, any two of the K measurement configuration parameters can be different from each other.

[0078] In one implementation, the measurement configuration parameters may include at least two different types of configuration parameters, wherein at least one parameter among any two of the K measurement configuration parameters may be different.

[0079] In one implementation, the K measurement configuration parameters can be fixed.

[0080] In one implementation, the K measurement configuration parameters can be adjusted or determined based on at least one of the following: the operating time of the network device, the size of the signal coverage area, the signal configuration parameters of adjacent network devices, the number of adjacent network devices, and the setting location.

[0081] In one implementation, the measurement configuration parameters may include parameters used by the terminal device to perform cell measurements, such as SRS, SMTC, etc.

[0082] In one implementation, there can be a one-to-one correspondence between the measurement configuration parameters in the configuration parameter set and the sub-regions in the first region set. For example, the kth measurement configuration parameter in the configuration parameter set can correspond to the kth sub-region in the first region set.

[0083] Step 102: Send at least one measurement configuration parameter from the measurement configuration parameter set to the terminal device that has established a communication connection with the network device, so that the terminal device can perform cell measurement based on at least one measurement configuration parameter.

[0084] In one implementation, the terminal device may be a UE; for example, the UE may include a mobile electronic device; for example, the mobile electronic device may include a smartphone, etc.

[0085] In one implementation, the network device can determine at least one measurement configuration parameter from a set of configuration parameters according to a pre-set parameter transmission strategy. For example, the parameter transmission strategy can be determined or adjusted according to the communication protocol between the network device and the terminal device, and this application embodiment does not limit this.

[0086] In one implementation, after receiving at least one measurement configuration parameter, the terminal device can perform cell measurement based on the cell measurement protocol between itself and the network device, and report the measurement results to the network device in real time to determine whether the terminal device should perform cell handover.

[0087] In one implementation, a network device, such as a base station device, can send at least one measurement configuration parameter to a terminal device via the measConfig carried in the Connection Reconfiguration of Radio Resource Control (RRC). The measConfig is used to instruct the terminal device to include measurement configurations including same-frequency measurement, different-frequency measurement, Radio Access Technology (RAT), and measurement time intervals. The measurement configuration may include measObject, reportConfig, measId, and measGapConfig.

[0088] As can be seen from the above, the measurement configuration parameter determination method for network devices provided in this application includes a first region set of K sub-regions, which is obtained by dividing the signal coverage area of ​​the satellite network device. This achieves fine-grained division and management of the signal coverage area of ​​the satellite network device. Furthermore, by determining K measurement configuration parameters associated with the K sub-regions in the first region set and obtaining the configuration parameter set, even when the K measurement configuration parameters are different, the network device can perform differentiated and targeted management and control of the cell measurement process for terminal devices distributed in the K sub-regions. This improves the targeting of cell measurement for terminal devices distributed in different sub-regions, reduces the negative impact on the throughput and power consumption of terminal devices, and also improves the stability of communication connections for terminal devices distributed in different sub-regions. On this basis, at least one measurement configuration parameter from the configuration parameter set is sent to the terminal device that has established a communication connection with the network device. This allows the terminal device to reduce unnecessary cell measurement operations and improve the flexibility and targeting of cell measurement during the cell measurement process based on at least one measurement configuration parameter. This improves the efficiency of cell handover, enhances the stability of terminal device service data processing, and ultimately meets the cell measurement requirements of NTN.

[0089] While comprehensive terrestrial mobile networks have been deployed across most of the world's landmass, areas with harsh natural environments such as deserts, forests, and oceans, as well as transportation environments where high-speed vehicles like airplanes or high-speed trains operate, are difficult to cover using traditional terrestrial networks like cellular mobile networks due to cost or physical limitations. NTN technology can effectively solve the mobile communication problems in these areas and environments. Furthermore, the measurement configuration parameter determination method for network devices provided in this application can further improve the NTN cell measurement configuration scheme, meeting the mobile communication and data transmission needs of terminal devices within the NTN signal coverage area.

[0090] Meanwhile, most current NTN solutions only support SMS services. The method provided in this application can improve the system throughput of NTN, thereby enhancing the network performance of NTN and having broad application prospects.

[0091] Based on the foregoing embodiments, the method for determining measurement configuration parameters for network devices provided in this application may further include the following steps:

[0092] Step A1: Determine the distance data between the area unit and the network device in the signal coverage area.

[0093] In one implementation, a regional unit may include a basic geographical area division unit encompassed by the signal coverage area. For example, the shape and size of the regional unit may be determined by the network device based on the regional status of the signal coverage area and the computing status of the network device. The regional status may include the terrain, altitude, and pre-acquired population distribution status of the signal coverage area, etc., and the computing status may include the number of regional units pre-allocated in the computing resources of the network device for regional unit division.

[0094] For example, if the region status indicates that the signal coverage area is a high-altitude, sparsely populated area, and the computing resources indicate that there are a large number of computing resources used for dividing the region into units, then the signal coverage area can be divided into a first number of region units. If the computing resources indicate that there are a small number of computing resources used for dividing the region into units, then the signal coverage area can be divided into a second number of region units, where the first number is greater than the second number.

[0095] In one implementation, the distance included in the distance data may be the same as the number of regional units included in the signal coverage area.

[0096] In one implementation, distance data can be determined in the following way:

[0097] The location of the network equipment's base station is determined based on ephemeris data and time n, and then the distance data is determined based on the base station location and the coordinates of the regional unit.

[0098] Distance data is determined based on the data transmission delay between network devices and regional units.

[0099] Figure 6 This is a schematic diagram illustrating the principle of signal transmission delay provided in an embodiment of this application. Figure 6 In China, still with Figure 4 Taking the first and second network devices in the network as examples, the principle of dividing the first region set is explained.

[0100] like Figure 6 As shown, the first terminal 502 can be located at the geometric center of the first cell 404, and the second terminal 503 can be located on the side of the first overlapping region 407 closer to the geometric center of the first cell 404. Due to the positional difference between the first terminal 502 and the second terminal 503 in the first cell 404, the distance d11 between the first network device 401 and the first terminal 502 is less than the distance d21 between the first network device 401 and the second terminal 503. This distance difference results in a difference in signal transmission delay between the first terminal 502 and the second terminal 503 and the first network device 401, respectively.

[0101] Meanwhile, for the second network device 402 adjacent to the first network device 401, the distance d12 between it and the first terminal 502 is greater than the distance d22 between it and the second terminal 503. The aforementioned distance difference causes a difference in signal transmission delay between the first terminal 502 and the second terminal 503 and the second network device 402, respectively.

[0102] Furthermore, from Figure 6 It can be seen from this that the value of |d12-d11| is greater than the value of |d21-d22|; combined with Figures 5A to 5B It can be seen that the probability of cell handover for the first terminal 502 and the second terminal located at different positions in the first cell 404 is different during the time period before and after time T2. Therefore, it is necessary to divide the area where the first terminal 502 and the second terminal 503 are located into different sub-regions according to the distance between them and the first network device 401, so as to configure different measurement configuration parameters for the terminal devices in different sub-regions, thereby controlling the terminal devices in different sub-regions to perform cell measurements in a targeted manner.

[0103] Step A2: Divide the signal coverage area into regional units based on distance data to obtain the first region set.

[0104] In one implementation, the number of sub-regions in the first region set may be less than the number of region units.

[0105] In one implementation, the first region set can be obtained in the following way:

[0106] According to a predetermined distance partitioning strategy, the distance data is partitioned to obtain the distance partitioning results. The set of regional units corresponding to different results in the distance partitioning results is determined as different sub-regions in the first region set.

[0107] The base station projection point of the network device in the signal coverage area is determined. The unit distance between the regional unit and the base station projection point is determined based on the distance data. Then, the regional units are divided according to the unit distance to obtain the first regional set.

[0108] As can be seen from the above, the measurement configuration parameter determination method for network devices provided in this application, after determining the distance data between the regional unit in the signal coverage area and the network device, divides the regional unit in the signal coverage area based on the distance data, thereby improving the accuracy of the signal coverage area division. Furthermore, since different distance data correspond to different signal transmission delays, dividing the regional unit in the signal coverage area based on the distance data allows each sub-region in the first set of regions to indirectly carry the delay information between itself and the network device, thereby further reflecting the differences in signal transmission delay between each sub-region.

[0109] Based on the foregoing embodiments, the method for determining measurement configuration parameters of network devices provided in this application, which divides the signal coverage area into regional units based on distance data to obtain a first region set, can be implemented in the following ways:

[0110] Divide the distance data to obtain K distance intervals; divide the regional unit associated with the k-th distance interval into the k-th sub-region; determine the first sub-region to the k-th sub-region as the first region set.

[0111] Where k is an integer greater than or equal to 1 and less than K.

[0112] In one implementation, the K distance intervals can be obtained in the following way:

[0113] Sort the distances in the distance data in ascending or descending order to obtain the distance sorting result, and then divide the distance sorting result into K distance intervals.

[0114] The distances in the distance data are sorted in ascending or descending order to obtain the distance sorting result. At the same time, the data transmission delay corresponding to each data is determined according to the distance sorting result. Then, the regional units associated with the distance sorting result are divided according to the above data transmission delay to obtain K distance intervals. For example, the difference in data transmission delay between the regional unit corresponding to the k-th distance interval and the network device can be less than the delay threshold.

[0115] In one implementation, the region unit associated with the k-th distance can be a set of region units whose distance to the geometric center of the region unit corresponding to the k-th distance is less than a target threshold; for example, the target threshold can also be determined or divided according to the data transmission delay length between different region units and network devices.

[0116] Figure 7 This is a schematic diagram of the partitioning structure of the first region set provided in an embodiment of this application, as shown below. Figure 7As shown, point P is the current location of the first network device 401. Figure 7 The circular closed area in the middle is the first cell. Point O can be the base station projection point of the first network device 401 in the first cell. Dividing the first cell can yield a first region set consisting of the first sub-region 701, the second sub-region 702, the third sub-region 703, the fourth sub-region 704, and the fifth sub-region 705.

[0117] For example, the first sub-region 701 can be the central sub-region of the first cell, the second sub-region 702 and the third sub-region 703 can be the secondary central sub-regions of the first cell, and the fourth sub-region 704 and the fifth sub-region 705 can be the edge sub-regions of the first cell.

[0118] For example, line segment PO can be perpendicular to the plane where the first cell is located, passing through point O on the straight line in the flight direction of the first network device 401, and intersecting the boundary lines of the first sub-region 701 and the second sub-region 702, the second sub-region 702 and the fourth sub-region, and the boundary of the first cell at points A, B, and C, respectively. Here, d1, d2, d3, and d4 are the lengths of line segments PO, PA, PB, and PC, respectively, i.e., the distances between the geometric center of the first sub-region 701, the center point of the boundary between the first sub-region 701 and the second sub-region 702, the center point of the boundary between the second sub-region 702 and the fourth sub-region 704, and the boundary of the first cell, and the first network device 401.

[0119] For example, the distance data in the aforementioned embodiments can be divided according to d1, d2, d3 and d4 respectively to obtain 5 distance intervals, and the regional units corresponding to the 5 distance intervals can be divided into the above 5 sub-regions.

[0120] As can be seen from the above, the measurement configuration parameter determination method for network devices provided in this application divides distance data to obtain K distance intervals, and divides the regional units associated with the k-th distance interval into the k-th sub-region, and determines the first sub-region to the K-th sub-region as the first region set. Therefore, the above process of dividing the k-th sub-region is based on the distance data between each regional unit in the signal coverage area and the network device. This ensures that the data transmission delay between the terminal devices distributed in the k-th sub-region and the network device is closely related to the distance between the regional units in the k-th sub-region and the network device, allowing the data transmission delay associated with the k-th sub-region to be predetermined by the network device, thereby enhancing the targeted control of the terminal devices distributed in the k-th sub-region by the network device. Furthermore, defining the first sub-region to the K-th sub-region as the first region set ensures that each sub-region in the first region set has its corresponding, explicit data transmission delay, thus laying the foundation for the targeted management of terminal devices in each sub-region by the network device.

[0121] Based on the foregoing embodiments, the method for determining measurement configuration parameters for network devices provided in this application may further include the following steps:

[0122] Step B1: Determine the region update strategy.

[0123] The region update strategy includes at least an update strategy for the target sub-region; the target sub-region includes at least one sub-region of the boundary of the region to be updated in the second region set; the second region set includes a set of sub-regions obtained by dividing the signal coverage area of ​​the network device at time m; m is an integer greater than or equal to 1.

[0124] In one implementation, the number of sub-regions in the second region set may be the same as or different from the number of sub-regions in the first region set.

[0125] In one implementation, the division of the signal coverage area of ​​a network device can be performed at certain time intervals, thereby reducing the amount of data processing caused by frequent area division of the network device.

[0126] In one implementation, the target sub-region may include any sub-region in the second region set.

[0127] In one implementation, the region update strategy may include a strategy for how to update the region boundaries of the target sub-region. For example, the region boundaries of the target sub-region may be updated in real time during a first time period, while keeping the region boundaries of other sub-regions in the second region set unchanged. Another example is to update the region boundaries of the target sub-region at a specified frequency during a second time period, and update the region boundaries of each sub-region in the second region set when the update range of the region boundaries of the target sub-region is greater than a range threshold.

[0128] In one implementation, the region update strategy can be determined in any of the following ways:

[0129] Based on the relative positions of network devices and adjacent network devices, a region update strategy is determined. For example, if the number of adjacent network devices is greater than the base station number threshold, the region update strategy can be determined as follows: update the region boundary of the target sub-region at a first frequency greater than the frequency threshold.

[0130] Based on the flight status parameters of the network device, the area update strategy is determined. For example, if the flight status parameters indicate that the network device is flying at a speed greater than the speed threshold, then the area update strategy can be determined as: updating the area boundary of the target sub-region at a second frequency greater than the frequency threshold.

[0131] Step B2: At time n, update the region boundary of the target sub-region based on the region update strategy to obtain the first region set.

[0132] Where the m-th time is the historical time of the n-th time; n is an integer greater than m.

[0133] In one implementation, the nth time can be the current time.

[0134] In one implementation, the first region set can be obtained in the following way:

[0135] At time n, the regional boundaries of the target sub-region are updated based on the regional update strategy, and the target sub-region with updated regional boundaries, as well as the sub-regions in the second regional set whose regional boundaries have not been updated, are determined as the first regional set.

[0136] As can be seen from the above, in the method for determining measurement configuration parameters of network devices provided in this application embodiment, the region update strategy includes an update strategy for the target sub-regions whose boundaries to be updated are in the second region set, and the second region set includes a set of sub-regions obtained by dividing the signal coverage area of ​​the network device at time m. In this way, the region update strategy can reflect the continuous update of the second region set in the time dimension. Furthermore, since time m is a historical time of time n, by updating the region boundary of the target sub-region based on the region update strategy at time n, the first region set is obtained, so that the first region set and the second region set are related in both the time dimension and the sub-region division dimension. At the same time, by updating the region boundary of the target sub-region in the second region set to obtain the first region set, the amount of computation caused by updating the region boundary of all sub-regions in the second region set can be reduced, thereby reducing the computational load of the network device.

[0137] Based on the foregoing embodiments, the method for determining measurement configuration parameters for network devices provided in this application includes a strategy for determining target sub-regions in its area update strategy.

[0138] In one implementation, the strategy for determining the target sub-region may include the process of determining the target sub-region and / or the timing of triggering the target sub-region, etc., which are not limited in this application.

[0139] Accordingly, determining the regional update strategy can be achieved through the following steps:

[0140] Step C1: Obtain the first boundary information of the second region set.

[0141] In one implementation, the first boundary information may include the shape information of the region boundaries of each sub-region in the second region set.

[0142] In one implementation, after the signal coverage area of ​​the network device at time m is divided, the network device can obtain the first boundary information.

[0143] Step C2: Obtain the satellite's flight status parameters.

[0144] In one implementation, flight status parameters may include parameters such as the flight direction and speed of the satellite or network device relative to the Earth.

[0145] It should be noted that the execution order of steps C1 and C2 can be adjusted or executed in parallel, and this application embodiment does not limit this.

[0146] Step C3: Based on the first boundary information and flight state parameters, determine the second boundary information corresponding to the first boundary information at time n.

[0147] In one implementation, the length and shape of the region boundary represented by the second boundary information can be the same as the length and shape of the region boundary represented by the first boundary information.

[0148] In one implementation, the second boundary information can be determined in the following way:

[0149] The flight direction and speed of the network device are determined based on the flight state parameters. Then, the flight speed is calculated based on the flight direction to predict the shape of the first boundary information at time n, thereby obtaining the second boundary information.

[0150] Step C4: Based on the first boundary information and the second boundary information, determine the target region unit; determine the sub-regions in the second region set that are associated with the target region unit as the target sub-regions.

[0151] In one implementation, the target region unit may include at least one region unit.

[0152] In one implementation, the target region unit can be determined in any of the following ways:

[0153] Based on the first boundary information and the second boundary information, the area of ​​the region formed by the first boundary information and the second boundary information is estimated. If the area of ​​the region is greater than the first threshold, the regional unit within the area is determined as the target regional unit.

[0154] Based on the first boundary information and the second boundary information, a closed region composed of the first boundary information and the second boundary information is determined. If the closed region is a human activity area, then the regional units contained in the closed region are determined as target regional units.

[0155] In one implementation, the target sub-region can be determined in any of the following ways:

[0156] The sub-regions that contain the target region unit in the second region set are identified as the target sub-regions.

[0157] The sub-regions that contain the target region unit, the sub-regions adjacent to the target region unit, and the sub-regions whose distance from the target region unit is less than the second threshold are identified as target sub-regions.

[0158] As can be seen from the above, the measurement configuration parameter determination method for network devices provided in this application, after obtaining the first boundary information of the second region set and the flight status parameters of the satellite, determines the second boundary information corresponding to the first boundary information at time n based on the first boundary information and the flight status parameters, so that the second boundary information can reflect the changing state of the regional boundary of the second region set from the time dimension and the geographical dimension; and, based on the first boundary information and the second boundary information, the target region unit is determined, so that the target region unit can reflect the gradual change process of the regional boundary of the second region set from the dimension of the flight status parameters of the network device; at the same time, the sub-region associated with the target region unit in the second region set is determined as the target sub-region, so that the target sub-region can reflect the number and distribution of the sub-regions that need to be updated in the second region set obtained by dividing its signal coverage area from the spatial flight dimension and the time dimension of the network device.

[0159] Based on the foregoing embodiments, in the method for determining measurement configuration parameters for network devices provided in this application, the area update strategy includes at least the update conditions for the area boundaries of the target sub-region.

[0160] In one implementation, the update condition may include a condition for whether to update the region boundary of the target sub-region, and may also include a condition for whether to completely update all boundaries of the target sub-region.

[0161] Accordingly, the region boundaries of the target sub-region are updated based on the region update strategy to obtain the first region set, which can be achieved through the following steps:

[0162] Step D1: Determine the distribution status change parameters of terminal devices distributed in the edge region of the target sub-region.

[0163] In one implementation, the edge region of the target sub-region may include a set of regions within the target sub-region whose distance from the geometric center point of the target sub-region is greater than or equal to a third threshold.

[0164] In one embodiment, the distribution state change parameter may include the change parameter of the distribution state of the terminal device between time m and time n; for example, the distribution state of the terminal device may include the number of terminal devices and / or the coordinate position of each terminal device.

[0165] In one implementation, the distribution state change parameter can be determined in the following way:

[0166] Starting from time m, the distribution status of terminal devices in the second region set is continuously tracked. During the time period from time m to time n, the dynamic changes in the distribution status are statistically analyzed to obtain statistical results. Then, the relevant results of terminal devices associated with the edge region of the target region are selected from the statistical results, and the relevant results are determined as the distribution status change parameters.

[0167] Step D2: If the distribution state change parameters meet the update conditions, update the region boundary of the target sub-region to obtain the first region set.

[0168] For example, if the distribution state change parameters do not meet the update conditions, the region boundary of the target sub-region may not be updated.

[0169] In one implementation, the update condition may include the number of terminals distributed in the area boundary of the target sub-region being greater than a device number change threshold; for example, the device number change threshold may be determined based on the flight speed of the network device, the area of ​​the signal coverage area, and the area of ​​the edge region of the target sub-region.

[0170] Figure 8 This is a schematic diagram illustrating the principle of updating the region boundary of the target sub-region as provided in an embodiment of this application. Figure 8 The update process of the area boundary is explained using the first network device 401 as an example.

[0171] like Figure 8 As shown, the signal coverage area of ​​the first network device at time m is divided into a second set of regions consisting of a sixth sub-region 801, a seventh sub-region 802, an eighth sub-region 803, a ninth sub-region 804, and a tenth sub-region 805. For example, the sixth sub-region 801 can be a central sub-region, the seventh and eighth sub-regions 802 and 803 can be secondary central sub-regions, and the ninth and tenth sub-regions 804 and 805 can be edge sub-regions.

[0172] For example, the first region boundary 806 can be the region boundary of the sixth sub-region 801 at time m. As the first network device 401 flies in the direction of the arrow, the first region boundary 806 changes to the second region boundary 807. At this time, the sixth sub-region 801 can be determined as the target sub-region based on the first region boundary 806 and the second region boundary 807.

[0173] For example, the first network device 401 can obtain the distribution status change parameters of terminal devices in the edge region of the sixth sub-region 801. If the distribution status change parameters indicate that the number of terminal devices in the aforementioned edge region that have established communication connections with the first network device 401 is greater than or equal to the change in the number of devices, then the region boundary of the target sub-region is updated to the second region boundary 807.

[0174] As can be seen from the above, in the method for determining measurement configuration parameters of network devices provided in this application embodiment, after determining the distribution state change parameters of terminal devices distributed in the edge region of the target sub-region, if the distribution state change parameters meet the update conditions, the region boundary of the target sub-region is updated to obtain the first region set. Thus, by determining whether to update the region boundary of the target sub-region based on the distribution state change parameters of terminal devices in the edge region of the target sub-region, not only is strict control over the region boundary update operation of the target sub-region achieved, but the computational load generated by unnecessary boundary update operations is also reduced. Furthermore, the actual distribution state change parameters of terminal devices in the edge region of the target sub-region can be taken into account during the boundary update operation, thereby improving the stability of the service data processing of the aforementioned terminal devices.

[0175] Based on the foregoing embodiments, the method for determining measurement configuration parameters of network devices provided in this application, which determines the distribution state change parameters of terminal devices distributed in the edge region of the target sub-region, can be achieved through the following steps:

[0176] Step E1: Obtain the first distribution state of the terminal device in the signal coverage area at time n.

[0177] In one implementation, a map with regional boundaries can be established in the network device. During the flight of the network device, a first distribution state can be obtained based on the map and the real-time signal coverage area, combined with the terminal position of the terminal device in the real-time signal coverage area.

[0178] Step E2: Obtain the second distribution status of the terminal devices in the second region set.

[0179] For example, the spaceborne equipment can obtain the second distribution state at time m using the method provided in the foregoing embodiments.

[0180] Step E3: Determine the edge location data of the target sub-region's edge area.

[0181] In one implementation, after the target sub-region is determined, the edge position data of the edge region of the target sub-region can be calculated in real time based on the map described above.

[0182] Step E4: Based on the first distribution state, the second distribution state, and the edge location data, determine the distribution state change parameters.

[0183] In one implementation, the distribution state change parameter can be determined in the following way:

[0184] The state data in the first and second distribution states are filtered based on the edge location data to obtain the state data associated with the edge location data. Then, the state data at time m is compared with the state data at time n to obtain the distribution state change parameters.

[0185] As can be seen from the above, in the method for determining measurement configuration parameters of network devices provided in this application embodiment, after acquiring the first distribution state of the terminal device in the signal coverage area at time n, the second distribution state of the terminal device in the second area set, and the edge position data of the edge area of ​​the target sub-region, the distribution state change parameter can be determined based on the first distribution state, the second distribution state, and the edge position data. Thus, since the distribution state change parameter is closely related to the first and second distribution states generated by the network device due to its flight state, the distribution state change parameter can accurately characterize the actual flight state of the network device and its impact on the distribution state of the terminal device; furthermore, the distribution state change parameter is related to the edge position data of the edge area of ​​the target sub-region, thereby enabling the distribution state change parameter to accurately reflect the flight state of the network device, and the terminal devices and distribution areas in the target sub-region that are first affected.

[0186] Based on the foregoing embodiments, in the method for determining measurement configuration parameters for network devices provided in this application, sending at least one measurement configuration parameter from the configuration parameter set to a terminal device that has established a communication connection with the network device can be achieved through the following operations:

[0187] The first set of area information and the set of configuration parameters are sent to the terminal device so that the terminal device can determine the kth sub-area where the terminal device is currently located from the first set of area information based on the current device location and area information, and obtain the kth measurement configuration parameter associated with the kth sub-area from the set of configuration parameters, and then perform cell measurement based on the kth measurement configuration parameter.

[0188] In one implementation, the region information may include the coordinate information of the region boundaries of each sub-region in the first region set.

[0189] In one implementation, when a network device detects that a terminal device has connected to the network device, the network device can send the area information of the first area set and the configuration parameter set to the terminal device.

[0190] In one implementation, the terminal device can obtain the k-th sub-region where the terminal device is located from the first region set based on the relationship between the current device location and the coordinate information of the region boundary corresponding to the region boundary in the region information.

[0191] In one implementation, since the sub-regions in the first region set correspond one-to-one with the measurement configuration parameters in the configuration parameter set, after the terminal device determines the k-th sub-region, it can obtain the k-th measurement configuration information corresponding to the k-th sub-region from the configuration parameter set.

[0192] In one implementation, the k-th measurement configuration information may include information such as the period, frequency, and time window for performing cell measurements within a specified time period; for example, the specified time period may include the time period between the m-th time and the execution of the area boundary update operation in the aforementioned embodiment. That is, the specified time period may be determined by the flight status parameters of the network device and the distribution status change parameters of the terminal devices in the edge area of ​​the target sub-region.

[0193] In one implementation, after the network device sends the area information and configuration parameter set to the terminal device, it may stop sending the above information to the terminal device within a specified period of time, or it may send the above information to the terminal device at irregular intervals. This application embodiment does not limit this.

[0194] As can be seen from the above, in the measurement configuration parameter determination method for network devices provided in this application embodiment, after the network device sends the area information of the first area set and the configuration parameter set to the terminal device, the terminal device can determine the k-th sub-area where the terminal device is currently located from the first area set based on the terminal device's current device location and area information, and obtain the k-th measurement configuration parameter associated with the k-th sub-area from the configuration parameter set, and then perform cell measurement based on the k-th measurement configuration parameter. In this way, the network device can send the area information and configuration parameter set to all terminal devices within its signal coverage area without discrimination, thereby simplifying the configuration parameter sending process of the network device and improving the efficiency of configuration parameter sending; moreover, the terminal device can also make full use of the increasingly enhanced data processing capabilities of the terminal device to improve the flexibility of cell measurement.

[0195] Based on the foregoing embodiments, in the method for determining measurement configuration parameters for network devices provided in this application, at least one measurement configuration parameter includes the kth measurement configuration parameter.

[0196] Accordingly, sending at least one measurement configuration parameter from the configuration parameter set to a terminal device that has established a communication connection with the network device can be achieved through the following steps:

[0197] Step F1: Receive the current location of the terminal device sent by the terminal device.

[0198] Step F2: Based on the current device location, determine the k-th sub-region where the terminal device is located from the first region set.

[0199] In one implementation, the network device may not pre-divide the signal coverage area, but it can map the signal coverage area according to the map provided in the foregoing embodiments to obtain a first area set.

[0200] Step F3: Send the kth measurement configuration parameter associated with the kth sub-region to the terminal device so that the terminal device can perform cell measurement based on the kth measurement configuration parameter.

[0201] As can be seen from the above, in the measurement configuration parameter determination method for network devices provided in this application embodiment, after the network device receives the current device location sent by the terminal device, it determines the k-th sub-region where the terminal device is located from the first region set based on the current device location, thereby realizing the accurate sub-region division of the terminal device's location; furthermore, sending the k-th measurement configuration parameter associated with the k-th sub-region to the terminal device can reduce the data transmission burden between the network device and the terminal device and improve the throughput of the terminal device; at the same time, the terminal device performs targeted cell measurement based on the k-th measurement configuration parameter, thereby simplifying the cell measurement process of the terminal device.

[0202] Based on the foregoing embodiments, the measurement configuration parameters for determining network devices provided in this application include at least measurement frequency configuration parameters.

[0203] In one implementation, the frequency measurement configuration parameters may include frequency or period parameters for performing cell measurements.

[0204] In one implementation, the frequency measurement configuration parameters corresponding to different sub-regions can be the same or different.

[0205] Accordingly, determining the K measurement configuration parameters associated with the K sub-regions in the first region set can be achieved through the following steps:

[0206] Step G1: Determine the target edge area within the signal coverage area where the cell handover probability is greater than the probability threshold.

[0207] In one implementation, the probability threshold can be determined based on the configuration of the network device and adjacent network devices.

[0208] In one implementation, the probability threshold can be determined based on the antenna configuration parameters of the network device, or it can be determined based on the signal obstruction status in the signal coverage area.

[0209] In one implementation, the target edge region can be determined in the following way:

[0210] The set of regional units within the signal coverage area whose distance from the geometric center of the signal coverage area is greater than a distance threshold is defined as the target edge region.

[0211] Step G2: Determine the distance between the kth sub-region and the target edge region among the K sub-regions.

[0212] Where k is an integer greater than or equal to 1 and less than or equal to K.

[0213] In one implementation, the number of distances in the k-th region distance can be at least one; for example, when the number of distances in the k-th region distance is one, the k-th region distance can be the distance between the geometric center of the k-th sub-region and the geometric center of the target edge region; for example, when the number of distances in the k-th region distance is multiple, the k-th region distance can include a set of distances between the region boundary of the k-th sub-region and the geometric center of the target edge region.

[0214] Step G3: Determine the k-th frequency measurement configuration parameters corresponding to the k-th sub-region based on the distance of the k-th region.

[0215] In one implementation, there may be a first correlation between the frequency measurement configuration parameters and the area distance. Therefore, after determining the k-th area distance, the k-th frequency measurement configuration parameters corresponding to the k-th sub-area can be determined based on the k-th area distance and the aforementioned first correlation.

[0216] As can be seen from the above, the measurement configuration parameter determination method for network devices provided in this application, after determining the target edge region within the signal coverage area where the cell handover probability is greater than a probability threshold, and the k-th region distance between the k-th sub-region and the target edge region, can determine the k-th measurement configuration parameter corresponding to the k-th sub-region based on the k-th region distance. Thus, since the k-th region distance is associated with the target edge region, the k-th measurement frequency configuration parameter is indirectly associated with the target edge region. Therefore, through the above processing, the k-th measurement frequency configuration parameter can be associated with the target edge region where the cell handover probability is greater than a probability threshold, thereby enabling the k-th measurement frequency configuration parameter to meet the cell handover requirements. Furthermore, since the k-th measurement frequency configuration parameter corresponds to the k-th sub-region, by configuring the k-th measurement frequency configuration parameter specifically for the k-th sub-region, the targeting of cell measurement can be improved, reducing the time and resource costs generated by unnecessary measurement operations, thereby meeting the requirements of green communication.

[0217] Based on the foregoing embodiments, the method for determining measurement configuration parameters for network devices provided in this application, which determines the k-th measurement frequency configuration parameter corresponding to the k-th sub-region based on the distance to the k-th region, can be achieved through the following steps:

[0218] Step H1: Obtain the satellite's flight status parameters.

[0219] Step H2: Determine the k-th switching time period based on the distance to the k-th region and the flight status parameters.

[0220] In one implementation, the quotient of the distance to the k-th region and the flight speed included in the flight status parameters can be determined as the k-th switching time period.

[0221] Step H3: Determine the k-th measurement frequency configuration parameters based on the k-th switching time period.

[0222] In one implementation, since different sub-regions correspond to different switching time periods, different frequency measurement configuration parameters can be configured for different sub-regions.

[0223] In one implementation, the k-th measurement frequency configuration parameter can be inversely proportional to the k-th switching period, that is, the k-th measurement frequency configuration parameter can decrease as the k-th switching period extends.

[0224] Figure 9 This is a schematic diagram illustrating the principle of determining frequency measurement configuration parameters as provided in an embodiment of this application. Figure 9 In this paper, we will still take the first network device 401 and the second network device 402 as examples to explain the above principle.

[0225] In terrestrial networks, because base stations are fixed in location, cell handover for terminal devices connected to a base station occurs due to the movement of the terminal devices themselves. Therefore, the frequency measurement configuration parameters used by terminal devices to perform cell measurements are fixed. However, for NTN (Network Telecommunication Network), due to the high-speed movement of near-Earth satellites carrying network equipment, the primary reason for cell handover for terminal devices connected to the network equipment is the high-speed movement of the network equipment. Therefore, using the fixed frequency measurement configuration parameters found in terrestrial networks cannot meet the measurement requirements for cell handover of terminal devices in NTN.

[0226] like Figure 9 As shown, the distance between the second terminal 503 located in the first overlapping region 407 and the critical region 501 is denoted as d5, and the distance between the first terminal 502 located in the central sub-region of the first cell 404 and the critical region 501 is denoted as d6. Since the flight speed of the first network device 401 is much greater than the movement speed of the first terminal 502 and the second terminal 503, the movement speed of the first terminal 502 and the second terminal 503 can be approximated as 0.

[0227] For example, when the first network device 401 flies at a speed of v in the direction indicated by the arrow, the time it takes for the first terminal 502 to move to the critical region 501 is d6 / v, and the time it takes for the second terminal 503 to move to the critical region 501 is d5 / v. Since d6 is greater than d5, the handover period corresponding to the first terminal 502 located in the central sub-region is greater than the handover period corresponding to the second terminal 503 located in the first overlapping region 407. At this time, in order to reduce the power consumption of the first terminal 502 and improve the throughput, a longer measurement time interval, i.e., a lower measurement frequency configuration parameter, can be set for the first terminal 502 and the central sub-region; while for the second terminal 503 and the edge sub-region where it is located, a shorter measurement time interval, i.e., a higher measurement frequency configuration parameter, can be set for them, so that the second terminal 503 and other terminal devices distributed in the edge sub-region can quickly perform cell measurements to determine whether to perform cell handover.

[0228] As can be seen from the above, in the cell handover method for network devices provided in this application embodiment, after obtaining the flight status parameters of the network device, the k-th handover time period is determined based on the distance of the k-th region and the flight status parameters. In this way, the k-th handover time period can intuitively and accurately characterize the time period between the time when the distributed k-th sub-region performs cell handover and the m-th time. Furthermore, the k-th measurement frequency configuration parameters determined based on the k-th handover time period can not only meet the cell measurement needs of the terminal devices distributed in the k-th sub-region, but also reduce the power consumption of these terminal devices due to performing unnecessary cell measurements.

[0229] Based on the foregoing embodiments, the measurement configuration parameter determination method for network devices provided in this application includes the measurement window duration.

[0230] In one implementation, the measurement window duration may include the duration of the SMTC window.

[0231] In one implementation, the measurement window duration may include the time period corresponding to at least one downlink channel-state-information reference signal (CSI-RS) on which the cell measurement is based.

[0232] Accordingly, determining the K measurement configuration parameters associated with the K sub-regions in the first region set can be achieved through the following steps:

[0233] Step K1: Determine the first spatial position and the second spatial position.

[0234] The first spatial location includes the spatial location of the satellite, and the second spatial location includes the spatial locations of the satellite's adjacent satellites.

[0235] In one implementation, the first spatial position and the second spatial position can be determined based on ephemeris data.

[0236] Step K2: Based on the first spatial location and the second spatial location, determine the duration of the kth measurement window associated with the kth sub-region in the first region set.

[0237] In one implementation, the duration of the k-th measurement window can be achieved in the following way:

[0238] The measurement window duration can have a second correlation with the sub-region, the first spatial position, and the second spatial position. Therefore, after determining the first spatial position, the second spatial position, and the k-th sub-region, the k-th measurement window duration corresponding to the k-th sub-region can be determined by combining the above-mentioned second correlation.

[0239] As can be seen from the above, in the method for determining measurement configuration parameters for network devices provided in this application embodiment, after determining the first spatial position of the satellite and the second spatial positions of adjacent satellites, the duration of the k-th measurement window associated with the k-th sub-region in the first region set is determined based on the first and second spatial positions. This not only ensures that the duration of the k-th measurement window is closely related to the first and second spatial positions, but also ensures that the duration of the k-th measurement window can meet the dynamic cell measurement requirements of the network device and adjacent network devices. Simultaneously, since the duration of the k-th measurement window is also associated with the k-th sub-region, different sub-regions have different measurement window durations, thus meeting the time requirements for cell measurement in different sub-regions.

[0240] Based on the foregoing embodiments, the method for determining measurement configuration parameters for network devices provided in this application, which determines the duration of the k-th measurement window associated with the k-th sub-region in the first region set based on the first spatial location and the second spatial location, can be achieved through the following steps:

[0241] Step L1: Based on the first spatial location, determine the first delay between the network device and the k-th sub-region.

[0242] In one implementation, the first delay can be calculated in the following way:

[0243] The distance between the network device and the kth sub-region is determined based on the first spatial location, and then the first delay is determined based on the distance between the first base station and the signal transmission speed.

[0244] Step L2: Based on the second spatial location and the k-th region location of the second sub-region, determine the second delay between the adjacent network devices set on the adjacent satellites and the k-th sub-region.

[0245] Step L3: Determine the duration of the k-th measurement window based on the delay difference between the second delay and the first delay, and the first delay.

[0246] In one implementation, the delay difference can be determined by the difference between the second delay and the first delay, which can reflect the difference in signal transmission delay between the terminal device and the network device, as well as between adjacent network devices.

[0247] In one implementation, the duration of the k-th measurement window can be greater than or equal to the sum of the first delay and the delay difference.

[0248] In practical applications, because network devices are far from the Earth's surface, the difference between the distance between a terminal device and the first base station of the network device with which it has established a communication connection, and the distance between the terminal device and the second base station of the adjacent network device, will result in a large path delay difference between the terminal device and the two network devices.

[0249] Therefore, the measurement configuration system in the 5G NR system cannot be directly applied to the NTN composed of the first network device 401 and the second network device 402, for the following reasons: In the 5G NR system, all UEs distributed in the serving cell perform cell measurements using the same SMTC configuration parameters. However, in Figure 9 In the NTN consisting of the first network device 401 and the second network device 402 shown, the path delay between terminal devices at different locations and the first network device 401 and the second network device 402 is different. In this case, if the same SMTC configuration parameters are configured for terminal devices at different locations, a longer SMTC window needs to be set for the terminal devices in order to overcome the signal transmission delay caused by the path delay. This will lead to a decrease in system throughput. Therefore, the SMTC parameter configuration in the 5G NR system cannot meet the cell measurement requirements of terminal devices distributed at different locations in the NTN.

[0250] For example, if the SMTC window configuration method of 5G NR is applied to the above NTN, if Figure 9 The two network devices shown transmit SSB signals at the same time interval. Due to path delay differences, the SSB signals transmitted by the two devices arrive at the same terminal device at different times. Therefore, in order for the terminal device to simultaneously perform cell measurements for both the network device and neighboring network devices, the network device needs to set a longer SMTC window length for the terminal devices with which it has established communication connections. This ensures that the SMTC window length covers both the SSB signals transmitted by the network device and the SSB signals transmitted by neighboring network devices.

[0251] Figure 10 This is a schematic diagram illustrating the principle of configuring the measurement window duration as provided in an embodiment of this application. Figure 10 In this example, we will continue to use the first network device and the second network device adjacent to the first network device as examples. Figure 10 As shown, the first SSB signal 1001 sent by the first network device arrives at the terminal device within 0-2ms after the start time. If the adjacency relationship between the second network device and the first network device is not considered, the SMTC window duration can be set to 2ms. However, if the adjacency relationship between the second network device and the first network device needs to be considered, the 2ms SMTC window duration needs to be adjusted based on the delay difference between the second delay between the second network device and the terminal device and the first delay between the first network device and the terminal device. For example, it can be assumed that the delay difference between the second delay between the second network device and the terminal device and the first delay between the first network device and the terminal device is 1ms. Then, the second SSB signal 1002 sent by the second network device arrives at the terminal device within 1-2ms after the start time. In this case, in order to cover the first SSB signal 1001 and the second SSB signal 1002, the SMTC window duration can be adjusted from 2ms to 3ms based on the aforementioned delay difference of 1ms.

[0252] exist Figure 10 In the diagram, both the first SSB signal 1001 and the second SSB signal 1002 can include four SSBs, namely SSB0, SSB1, SSB3, and SSB4 as shown in the figure. In practical applications, the number of SSBs included in the first SSB signal 1001 and the second SSB signal 1002 can be arbitrary.

[0253] For example, for terminal devices distributed in the signal coverage area of ​​the first network device, i.e., the central sub-region of the first cell, the path delay between the terminal device and both the first and second network devices is more significant than the path delay between terminal devices distributed in the edge sub-regions of the first network device. Therefore, the delay difference between the first delay between the terminal device in the central sub-region and the first network device, and the second delay between the terminal device and the second network device, is larger. In this case, the terminal device in the central sub-region requires a longer time to perform a cell measurement. Therefore, a longer SMTC window duration and a longer measurement frequency can be configured for the terminal device in the central sub-region, thereby reducing the negative impact of the longer SMTC window duration on throughput.

[0254] For example, for a terminal device located in the signal coverage area of ​​the first network device, i.e., the edge sub-area of ​​the first cell, the original SMTC window duration can be used, or a shorter SMTC window duration can be configured for it. At the same time, in order to improve the quality of cell measurement, a higher measurement frequency configuration parameter can be configured for it. In this case, since the SMTC window duration is short, even if cell measurement is performed at a higher frequency, it will not have a significant negative impact on the service data processing of the terminal device.

[0255] Therefore, different measurement window durations can be configured for terminal devices distributed in different sub-regions within the signal coverage area of ​​network devices to improve the quality of cell measurements.

[0256] As can be seen from the above, in the method for determining measurement configuration parameters of network devices provided in this application embodiment, the first delay between the network device and the kth sub-region is determined based on the first spatial location, and the second delay between the adjacent network device and the kth sub-region is determined based on the second spatial location. Through the delay difference between the second delay and the first delay, the differences in signal transmission delay between the terminal devices distributed in different sub-regions within the signal coverage area of ​​the network device and the network device and adjacent network devices can be accurately reflected. Furthermore, based on the delay difference between the second delay and the first delay and the first delay, the duration of the kth measurement window is determined, so that the duration of the kth measurement window is not only directly related to the delay difference and the first delay, but also directly related to the second delay. Thus, the duration of the kth measurement window can compensate for the delay difference between the first delay and the second delay, and mitigate the negative impact on the terminal devices in different sub-regions performing cell measurements.

[0257] Based on the foregoing embodiments, this application also provides a method for determining measurement configuration parameters applied to a terminal device. This method can be implemented using a processor in the terminal device, which can be at least one of an ASIC, DSP, DSPD, PLD, FPGA, CPU, controller, microcontroller, or microprocessor.

[0258] Figure 11 This is a flowchart illustrating the method for determining measurement configuration parameters for terminal devices provided in an embodiment of this application, as shown below. Figure 11 As shown, the method may include the following steps:

[0259] Step 1101: Receive at least one measurement configuration parameter sent by the network device.

[0260] Wherein, at least one measurement configuration parameter is included in the configuration parameter set; K measurement configuration parameters in the configuration parameter set are associated with K sub-regions in the first region set; the configuration parameter set is determined by the network device set up on the satellite; the first region set is obtained by the network device dividing the signal coverage area of ​​the network device; K is an integer greater than or equal to 2.

[0261] Step 1102: Perform cell measurement based on at least one measurement configuration parameter.

[0262] As can be seen from the above, the measurement configuration parameter determination method for terminal devices provided in this application involves the terminal device establishing a communication connection with a network device and receiving at least one measurement configuration parameter sent by the network device. This at least one measurement configuration parameter is included in a configuration parameter set determined by the network device located on the satellite. K measurement configuration parameters in the configuration parameter set are associated with K sub-regions obtained by the network device from its signal coverage area. Thus, by pre-dividing the signal coverage area into K sub-regions by the network device and associating the K measurement configuration parameters in the configuration parameter set with the K sub-regions, a measurement configuration parameter guarantee is provided for the terminal device to perform differentiated cell measurements at the sub-region level based on at least one measurement configuration parameter after receiving it. Furthermore, since the configuration parameter set is determined by the network device, the cell measurements performed by the terminal device based on at least one measurement configuration parameter can meet the cell measurement requirements of the NTN formed by the terminal device and the network device.

[0263] Based on the foregoing embodiments, in the measurement configuration parameter determination method for terminal devices provided in this application, receiving at least one measurement configuration parameter sent by the network device can be achieved in the following ways:

[0264] Receive the set of configuration parameters sent by the network device.

[0265] For example, a network device can send a set of base station configuration parameters to all terminal devices with which it has established a communication connection without discrimination.

[0266] Accordingly, the method for determining measurement configuration parameters for terminal devices provided in this application embodiment may further include the following steps:

[0267] Receive area information of the first area set sent by the network device; obtain the current device location of the terminal device; determine the kth sub-area where the terminal device is currently located from the first area set based on the current device location and area information; obtain the kth measurement configuration parameter corresponding to the kth sub-area from the configuration parameter set; and perform cell measurement based on the kth measurement configuration parameter.

[0268] Where k is an integer greater than or equal to 1 and less than or equal to K.

[0269] As can be seen from the above, in the measurement configuration parameter determination method for network devices provided in this application embodiment, the network device sends a set of configuration parameters to the terminal device, thereby simplifying the parameter determination and sending process of the network device; furthermore, based on the area information of the first area set sent by the network device and the current device location, the terminal device determines the k-th sub-area where the terminal device is currently located from the first area set, thereby enabling the terminal device to determine the k-th sub-area in real time according to the current device location. Thus, when the current device location changes, the terminal device can determine the k-th sub-area on its own, thereby simplifying the data interaction process between it and the network device, and also making full use of the high-speed data processing capability of the terminal device to improve the determination efficiency of the k-th sub-area; at the same time, by determining the k-th measurement configuration parameter corresponding to the k-th sub-area from the configuration parameter set, the terminal device can determine the k-th measurement configuration parameter on its own when the k-th sub-area where the terminal device is located changes, thereby simplifying the process of determining the k-th measurement configuration parameter.

[0270] Based on the foregoing embodiments, in the measurement configuration parameter determination method for terminal devices provided in this application, receiving at least one measurement configuration parameter sent by the network device can be achieved in the following ways:

[0271] Send the current location of the terminal device to the network device; receive the k-th measurement configuration parameter initiated by the network device.

[0272] Wherein, the kth measurement configuration parameter is associated with the kth sub-region in the first region set; the kth sub-region includes the sub-region corresponding to the current device location; k is an integer greater than or equal to 1 and less than or equal to K.

[0273] As can be seen from the above, the measurement configuration parameter determination method for terminal devices provided in this application involves the terminal device sending its current location to the network device. Based on this location, the network device determines the k-th sub-region where the terminal device is located from the first region set, and determines the k-th measurement configuration parameter associated with the k-th sub-region. This enables the network device to specifically determine the k-th measurement configuration parameter used for cell measurement of the terminal device based on the actual sub-region where the terminal device is located. Furthermore, receiving the k-th measurement configuration parameter by the terminal device also reduces the amount of data transmission between the terminal device and the network device.

[0274] Based on the foregoing embodiments, the measurement configuration parameter determination method for terminal devices provided in this application includes the kth measurement configuration parameter as a kth measurement frequency configuration parameter and / or the kth measurement window duration.

[0275] Accordingly, performing cell measurements based on at least one measurement configuration parameter can be achieved in the following ways:

[0276] Cell measurements are performed based on the k-th measurement frequency configuration parameters and / or the k-th measurement window duration.

[0277] As can be seen from the above, in the measurement configuration parameter determination method for terminal devices provided in this application embodiment, after the terminal device obtains the k-th measurement frequency configuration parameter and / or the k-th measurement window duration associated with its sub-region, it performs cell measurement based on the k-th measurement frequency configuration parameter and / or the k-th measurement window duration, thereby achieving precise control over the cell measurement performed by the terminal device in the measurement frequency dimension and / or measurement window duration dimension.

[0278] Based on the foregoing embodiments, this application also provides a network device, which is installed on a satellite. Figure 12A This is a schematic diagram of the network device provided in the embodiments of this application, such as... Figure 12A As shown, the network device 1201 includes a first processor 1202 and a first memory 1203; the first memory 1203 stores a first computer program; when the first computer program is executed by the first processor 1202, it can implement the measurement configuration parameter determination method for the network device 1201 as provided in any of the preceding embodiments.

[0279] Based on the foregoing embodiments, this application also provides a terminal device. Figure 12B This is a schematic diagram of the structure of the terminal device provided in the embodiments of this application, such as... Figure 12B As shown, the terminal device 1204 includes a second processor 1205 and a second memory 1206; the second memory 1206 stores a second computer program; when the second computer program is executed by the second processor 1205, it can implement the cell handover method applied to the terminal device 1204 as provided in any of the preceding embodiments.

[0280] For example, Figure 13 Network device 14 in the middle can be with Figure 3 The network device shown is the same as the first, second, and third network devices in the other figures.

[0281] Figure 13 This is a schematic diagram illustrating the process of configuring measurement configuration parameters for a terminal device using a network device provided in an embodiment of this application. Figure 13 As shown, the process may include the following steps:

[0282] Step 1301: Establish a near-Earth satellite information database.

[0283] For example, a near-Earth satellite information database may include ephemeris data and antenna configuration data.

[0284] For example, ephemeris data may include ephemeris data of network devices and adjacent network devices.

[0285] For example, antenna configuration data may include data related to the antenna configuration of the network device and adjacent network devices.

[0286] Step 1302: Divide the signal coverage area into multiple sub-regions and update the sub-regions regularly or irregularly.

[0287] For example, the signal coverage area can be divided into K sub-regions according to the distance between different regional units and network devices in the signal coverage area, and the K sub-regions can be determined as a first region set.

[0288] For example, the sub-region can be updated periodically or irregularly based on the flight status parameters of the network device, the distribution status of the terminal device in the signal coverage area, and the distribution status change parameters of the terminal device in the target sub-region, using the method provided in the foregoing embodiments.

[0289] For example, the network device can also determine a set of configuration parameters corresponding to multiple sub-regions.

[0290] Step 1303: Establish a communication connection with the terminal device.

[0291] For example, after establishing the aforementioned communication connection, context data between the network device and the terminal device can be obtained through the communication connection. For example, the context data may include the device location of the terminal device, the service data requested or processed by the terminal device, and the status parameters of the communication connection between the terminal device and the network device.

[0292] Step 1304: Assign corresponding SMTC windows and measurement frequencies to terminal devices distributed in different sub-regions based on the current device location of the terminal device.

[0293] For example, the SMTC window can be one of the parameters of the measurement window duration in the foregoing embodiments.

[0294] For example, the measurement frequency can be a parameter configured for the measurement frequency in the foregoing embodiments.

[0295] For example, the network device can obtain the current device location of the terminal device, determine the k-th sub-region where the terminal device is located based on the current device location, and then send the SMTC window and measurement frequency corresponding to the k-th sub-region to the terminal device.

[0296] For example, the network device may also send its pre-determined set of configuration parameters and the area information of the sub-area to the terminal device, so that the terminal device can determine the k-th sub-area it is in based on the current device location and area information, and obtain the k-th measurement configuration parameter associated with the k-th sub-area from the set of configuration parameters.

[0297] Through the above process, network devices can not only divide their signal coverage area into sub-regions, but also allocate corresponding SMTC windows and measurement frequencies to terminal devices based on their current device location.

[0298] Figure 14 This is a schematic diagram illustrating the process of a terminal device performing cell measurement according to an embodiment of this application. Figure 14 As shown, the process may include the following steps:

[0299] Step 1401: Establish a communication connection with the network device.

[0300] For example, the terminal device can also obtain context data between itself and the network device through a communication connection.

[0301] Step 1402: Perform same-frequency measurement or different-frequency measurement according to the SMTC window and measurement frequency issued by the network device.

[0302] Since the SMTC window and measurement frequency received by the terminal device are associated with the k-th sub-region where the terminal device is currently located, the terminal device can perform targeted cell measurements through the SMTC window and measurement frequency. Furthermore, since the SMTC window and measurement frequency are determined and configured by the network device, the same-frequency or different-frequency measurements performed by the terminal device based on the SMTC window and measurement frequency can meet the cell measurement requirements in NTN scenarios.

[0303] Based on the foregoing embodiments, this application also provides a computer-readable storage medium storing a computer program; when the computer program is executed by the processor of an electronic device, it can implement the measurement configuration parameter determination method for network devices or the measurement configuration parameter determination method for terminal devices as provided in any of the preceding embodiments.

[0304] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.

[0305] The methods disclosed in the various method embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments.

[0306] The features disclosed in the various product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0307] The features disclosed in the various method or device embodiments provided in this application can be arbitrarily combined without conflict to obtain new method or device embodiments.

[0308] It should be noted that the aforementioned computer-readable storage media can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), magnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM), etc.; or it can be various electronic devices that include one or any combination of the above-mentioned memories, such as mobile phones, computers, tablet devices, personal digital assistants, etc.

[0309] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0310] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0311] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware nodes. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0312] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0313] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0314] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0315] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A method for determining measurement configuration parameters, characterized in that, The method is applied to a network device located on a satellite, and the method includes: K measurement configuration parameters associated with K sub-regions in the first region set are determined to obtain a configuration parameter set; wherein, the K sub-regions in the first region set are obtained by the network device dividing the signal coverage area of ​​the network device; K is an integer greater than or equal to 2; At least one measurement configuration parameter from the set of configuration parameters is sent to a terminal device that has established a communication connection with the network device, so that the terminal device can perform cell measurement based on the at least one measurement configuration parameter.

2. The method according to claim 1, characterized in that, The method further includes: Determine the distance data between the area unit and the network device within the signal coverage area; The signal coverage area is divided into regional units based on the distance data to obtain the first region set.

3. The method according to claim 2, characterized in that, The method of dividing the signal coverage area into regional units based on the distance data to obtain the first region set includes: The distance data is divided into K distance intervals; The region unit associated with the k-th distance interval is defined as the k-th sub-region; where k is an integer greater than or equal to 1 and less than or equal to K. The first sub-region to the Kth sub-region are determined as the first region set.

4. The method according to claim 1, characterized in that, The method further includes: A region update strategy is determined; wherein the region update strategy includes at least an update strategy for a target sub-region; the target sub-region includes at least one sub-region of the boundary of the region to be updated in a second region set; the second region set includes a set of sub-regions obtained by dividing the signal coverage area of ​​the network device at time m; m is an integer greater than or equal to 1; At time n, the region boundary of the target sub-region is updated based on the region update strategy to obtain the first region set; wherein, time m is the historical time of time n; and n is an integer greater than m.

5. The method according to claim 4, characterized in that, The region update strategy includes a strategy for determining the target sub-region; The determined region update strategy includes: Obtain the first boundary information of the second region set; Obtain the flight status parameters of the satellite; Based on the first boundary information and the flight state parameters, the second boundary information corresponding to the first boundary information at the nth time is determined; Based on the first boundary information and the second boundary information, the target region unit is determined; The sub-region associated with the target region unit in the second region set is determined as the target sub-region.

6. The method according to claim 4, characterized in that, The region update strategy includes at least the update conditions for the region boundaries of the target sub-region; updating the region boundaries of the target sub-region based on the region update strategy to obtain the first region set includes: Determine the distribution status change parameters of terminal devices distributed in the edge region of the target sub-region; If the distribution state change parameters satisfy the update condition, update the region boundary of the target sub-region to obtain the first region set.

7. The method according to claim 6, characterized in that, The parameters for determining the distribution status change of terminal devices in the edge region of the target sub-region include: Obtain the first distribution state of the terminal device in the signal coverage area at the nth time; Obtain the second distribution status of the terminal devices in the second region set; Obtain the edge position data of the edge region of the target sub-region; Based on the first distribution state, the second distribution state, and the edge location data, the distribution state change parameters are determined.

8. The method according to claim 1, characterized in that, Sending at least one measurement configuration parameter from the set of configuration parameters to a terminal device that has established a communication connection with the network device includes: The region information of the first region set and the configuration parameter set are sent to the terminal device, so that the terminal device can determine the kth sub-region where the terminal device is currently located from the first region set based on the current device location of the terminal device and the region information, and obtain the kth measurement configuration parameter associated with the kth sub-region from the configuration parameter set, and then perform the cell measurement based on the kth measurement configuration parameter.

9. The method according to claim 1, characterized in that, The at least one measurement configuration parameter includes a k-th measurement configuration parameter; sending at least one measurement configuration parameter from the set of configuration parameters to a terminal device that has established a communication connection with the network device includes: Receive the current device location sent by the terminal device; Based on the current device location, determine the k-th sub-region where the terminal device is located from the first region set; Send the kth measurement configuration parameter associated with the kth sub-region to the terminal device so that the terminal device can perform the cell measurement based on the kth measurement configuration parameter.

10. The method according to claim 1, characterized in that, The measurement configuration parameters include at least measurement frequency configuration parameters; determining the K measurement configuration parameters associated with the K sub-regions in the first region set includes: Identify the target edge region within the signal coverage area where the cell handover probability is greater than a probability threshold; Determine the distance between the k-th sub-region and the target edge region among the K sub-regions; where k is an integer greater than or equal to 1 and less than or equal to K; The kth measurement frequency configuration parameters corresponding to the kth sub-region are determined based on the distance to the kth region.

11. The method according to claim 10, characterized in that, The determination of the kth measurement frequency configuration parameters corresponding to the kth sub-region based on the distance of the kth region includes: Obtain the flight status parameters of the satellite; Based on the distance to the k-th region and the flight status parameters, the k-th switching time period is determined; The k-th measurement frequency configuration parameters are determined based on the k-th switching time period.

12. The method according to claim 1, characterized in that, The measurement configuration parameters include the measurement window duration; the determination of the K measurement configuration parameters associated with the K sub-regions in the first region set includes: Determine a first spatial location and a second spatial location; wherein the first spatial location includes the spatial location of the satellite; and the second spatial location includes the spatial locations of the satellite's neighboring satellites. Based on the first spatial location and the second spatial location, determine the duration of the k-th measurement window associated with the k-th sub-region in the first region set; where k is an integer greater than or equal to 1 and less than or equal to K.

13. The method according to claim 12, characterized in that, Determining the duration of the k-th measurement window associated with the k-th sub-region in the first region set based on the first spatial location and the second spatial location includes: Based on the first spatial location, a first delay is determined between the network device and the k-th sub-region; Based on the second spatial location, determine the second delay between the adjacent network devices installed on the adjacent satellites and the k-th sub-region; The duration of the k-th measurement window is determined based on the delay difference between the second delay and the first delay, and the first delay.

14. A method for determining measurement configuration parameters, characterized in that, The method is applied to a terminal device; the method includes: The system receives at least one measurement configuration parameter sent by a network device; wherein the at least one measurement configuration parameter is included in a configuration parameter set; K measurement configuration parameters in the configuration parameter set are associated with K sub-regions in a first region set; the configuration parameter set is determined by the network device installed on the satellite; the first region set is obtained by the network device dividing the signal coverage area of ​​the network device; K is an integer greater than or equal to 2; Cell measurements are performed based on at least one of the measurement configuration parameters.

15. The method according to claim 14, characterized in that, The at least one measurement configuration parameter sent by the receiving network device includes: Receive the set of configuration parameters sent by the network device; The method further includes: Receive area information of the first area set sent by the network device; Obtain the current device location of the terminal device; Based on the current device location and the area information, the k-th sub-region where the terminal device is currently located is determined from the first area set; where k is an integer greater than or equal to 1 and less than or equal to K; Obtain the kth measurement configuration parameter corresponding to the kth sub-region from the set of configuration parameters.

16. The method according to claim 14, characterized in that, The at least one measurement configuration parameter sent by the receiving network device includes: Send the current device location of the terminal device to the network device; The network device receives the k-th measurement configuration parameter; wherein the k-th measurement configuration parameter is associated with the k-th sub-region in the first region set; the k-th sub-region includes the sub-region corresponding to the current device location; k is an integer greater than or equal to 1 and less than or equal to K.

17. The method according to claim 15 or 16, characterized in that, The k-th measurement configuration parameter includes the k-th measurement frequency configuration parameter and / or the k-th measurement window duration; the cell measurement based on the at least one measurement configuration parameter includes: The cell measurement is performed based on the k-th measurement frequency configuration parameters and / or the k-th measurement window duration.

18. A network device, characterized in that, The network device is located on the satellite; the network device includes a first processor and a first memory; the first memory stores a first computer program; when the first computer program is executed by the first processor, it can implement the measurement configuration parameter determination method as described in any one of claims 1 to 13.

19. A terminal device, characterized in that, The terminal device includes a second processor and a second memory; the second memory stores a second computer program; when the second computer program is executed by the second processor, it can implement the measurement configuration parameter determination method as described in any one of claims 14 to 17.

20. A computer-readable storage medium, characterized in that, The storage medium stores a third computer program; when the third computer program is executed by the processor of the electronic device, it is able to implement the measurement configuration parameter determination method as described in any one of claims 1 to 13 or claims 14 to 17.

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