Measurement configuration parameter determination method and device, and storage medium

Abstract

The invention discloses a measurement configuration parameter determination method and device and a storage medium. The method is applied to network equipment. The network equipment is arranged on a satellite; the method comprises the following steps: 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 dividing a signal coverage region of the network equipment by the network equipment; k is an integer greater than or equal to 2; and sending at least one measurement configuration parameter in the configuration parameter set to a terminal device in communication connection with the network device, so that the terminal device executes cell measurement based on the at least one measurement configuration parameter.

Description

Technical Field

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

[0002] For a ground network composed of ground network communication facilities, it usually relies on pre-set fixed measurement configuration parameters to perform cell measurement. For example, in a cellular communication network system, cell measurement is usually performed through a pre-set, fixed measurement window duration. However, for non-terrestrial networks (NTN) including network equipment, since the setting method of the network equipment is different from the setting method of the ground base station, the reason why the terminal equipment accessing the network equipment has a cell switching is different from the reason why the terminal equipment accessing the ground network has a cell switching. Therefore, the measurement configuration parameters in the ground network cannot meet the cell measurement requirements in the NTN network. Summary of the invention

[0003] Based on the above problems, the embodiments of the present application provide a method, device and storage medium for determining measurement configuration parameters.

[0004] The technical solution provided by the embodiment of the present application is as follows:

[0005] The embodiment of the present application provides a method for determining measurement configuration parameters, the method being applied to a network device; the network device being arranged on a satellite; the method comprising:

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

[0007] Determine K measurement configuration parameters associated with K sub-areas in the first area set to obtain a configuration parameter set; wherein the K measurement configuration parameters in the first area set 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;

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

[0009] The embodiment of the present application also provides a method for determining measurement configuration parameters, which is applied to a terminal device; the method includes:

[0010] Receive 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-areas in a first area set; the configuration parameter set is determined by the network device set on the satellite; the first area set is obtained by dividing the signal coverage area of ​​the network device by the network device.

[0011] An embodiment of the present application also provides a network device, which is arranged on a satellite; the network device includes a first processor and a first memory; a first computer program is stored in the first memory; when the first computer program is executed by the first processor, it can implement the measurement configuration parameter determination method applied to the network device as described in any of the above.

[0012] An embodiment of the present application also provides a terminal device, which includes a second processor and a second memory; a second computer program is stored in the second memory; 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 in any of the above.

[0013] An embodiment of the present application also provides a computer-readable storage medium, in which a third computer program is stored; when the third computer program is executed by a processor of an electronic device, it can implement a measurement configuration parameter determination method applied to a network device or a terminal device as described in any of the above.

[0014] In the method for determining measurement configuration parameters applied to a network device provided in an embodiment of the present application, a first area set including K sub-areas is obtained by dividing the signal coverage area of ​​the network device set on the satellite, thereby realizing fine-grained division and management of the signal coverage area of ​​the satellite-borne network device; and, K measurement configuration parameters associated with the K sub-areas in the first area set are determined. After obtaining the configuration parameter set, when the K measurement configuration parameters are different from each other, the network device can perform differentiated and targeted management and control of the cell measurement process on the terminal devices distributed in the K sub-areas through the K measurement configuration parameters, thereby improving the targetedness of the cell measurement performed by the terminal devices distributed in different sub-areas, reducing the negative impact on the throughput and power consumption of the terminal devices, and improving the stability of the communication connection of the terminal devices distributed in different sub-areas; on this basis, at least one measurement configuration parameter in the configuration parameter set is sent to the terminal device that has established a communication connection with the network device, so that in the process of performing cell measurement based on the at least one measurement configuration parameter, the terminal device can not only reduce unnecessary cell measurement operations, but also improve the flexibility and targetedness of the cell measurement, thereby improving the efficiency of cell switching, improving the stability of the terminal device service data processing, and thus meeting the cell measurement requirements of the NTN. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A flow chart of a method for determining measurement configuration parameters of a network device provided in an embodiment of the present application;

[0016] Figure 2 This is a schematic diagram of the principle of the physical meaning of ephemeris data;

[0017] Figure 3 It is a structural schematic diagram of the signal coverage area of ​​the network equipment;

[0018] Figure 4 A schematic diagram of a structure in which signal coverage areas between adjacent network devices overlap;

[0019] Figure 5A A schematic diagram of the principle of cell switching of terminal devices distributed within the network device signal coverage area provided in an embodiment of the present application;

[0020] Figure 5B Another schematic diagram of the principle of cell switching of terminal devices distributed within the network device signal coverage area provided in an embodiment of the present application;

[0021] Figure 6 A schematic diagram of the principle of signal transmission delay provided in an embodiment of the present application;

[0022] Figure 7 A schematic diagram of the division structure of the first area set provided in an embodiment of the present application;

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

[0024] Fig. 9 A schematic diagram of the principle of determining frequency measurement configuration parameters provided in an embodiment of the present application;

[0025] Fig.10 A schematic diagram of the principle of configuring the measurement window duration provided in an embodiment of the present application;

[0026] Fig.11 A schematic diagram of a flow chart of a method for determining measurement configuration parameters applied to a terminal device provided in an embodiment of the present application;

[0027] Fig. 12A A schematic diagram of the structure of a network device provided in an embodiment of the present application;

[0028] Fig. 12B A schematic diagram of the structure of a terminal device provided in an embodiment of the present application;

[0029] Fig.13 A schematic diagram of a flow chart of a network device configuring measurement configuration parameters for a terminal device provided in an embodiment of the present application;

[0030] Fig.14 A schematic diagram of a process for a terminal device to perform cell measurement according to an embodiment of the present application. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0032] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0033] In the Long Term Evolution (LTE) system, the base station sends measurement configuration parameters to the user equipment (UE) through dedicated signaling. For example, when the UE and the base station are in a connected state, if the base station detects that the measurement configuration has been updated, it will send updated or partially updated measurement configuration parameters. As shown in Table 1, in the LTE system, the measurement signal received by the UE is the cell reference signal (CRS), and the UE completes the measurement of indicators such as the reference signal receiving power (RSRP) based on the CRS. As for the measurement signal period, in the LTE system, whether in the same frequency measurement period or in the different frequency measurement period, the CRS is continuously sent, and the base station side continuously sends the CRS, and the CRS is evenly and discretely set in each resource block (RB), and one CRS is set every three symbol bits. Therefore, the UE can easily receive the CRS and perform cell measurement based on the CRS.

[0034] Moreover, in the case of same-frequency measurement, there is no conflict between cell measurement and service data transmission and reception, but when the signal quality of the serving cell drops to the corresponding threshold, the base station side will start the hetero-frequency or hetero-system measurement and activate the measurement GAP mode at the same time. At this time, the serving cell needs some measurement GAPs for the UE to perform hetero-frequency or hetero-system measurements. The GAP mode is divided into gp0 mode and gp1 mode. As shown in Table 1, the GAP period of the gp0 mode is 40ms, and the GAP period of the gp1 mode is 80ms. At the same time, 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 (ReferenceSignal, RS), and the period of the synchronization signal is 5ms, the start and end stages of the measurement GAP need to reserve 0.5ms for the RF module to perform frequency conversion. Therefore, the duration of the measurement GAP in the above two GAP modes is fixed to 6ms.

[0035] On the other hand, for the fifth generation mobile communication system (5 thFor the New Radio (NR) of 5G Generation (5G), its measurement signal is the synchronization signal or the physical broadcast channel block (Synchronization Signal and PBCHblock, SSB). However, in this system, the UE does not need to perform cell measurements based on the SSB period, but can configure an appropriate measurement period according to the channel conditions to reduce unnecessary cell measurements and UE power consumption. In order to facilitate the UE to perform cell measurements, 5G NR configures the UE with a SSB-based RRM Measurement Timing Configuration (SMTC) window based on the synchronization signal and physical broadcast channel (PBCH) block to notify 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 the SSB and according to the number of SSBs transmitted by the measured cell. As shown in Table 1, for the same-frequency measurement period and measurement period, the SMTC window duration is set to 1ms, 2ms, 3ms, 4ms or 5ms, and the UE will measure all SSBs falling within the SMTC window; the measurement interval of the inter-frequency measurement or inter-system measurement in the 5G NR system can be 1.5ms, 3ms, 3.5ms, 4ms, 5ms or 6ms, and the GAP period can be 20ms, 40ms, 80ms or 160ms.

[0039] At the same time, traditional cellular networks such as LTE and 5G are developed based on ground network infrastructure. The 3rd Generation Partnership Project (3GPP) incorporates network equipment into the 5G network to form the NTN, thereby improving the performance of the ground 5G network. Therefore, for NTN, how to efficiently and flexibly implement cell measurement to ensure the business data processing needs of UE has become a technical problem that needs to be solved urgently.

[0040] However, it can be seen from the statistical results in Table 1 that although the measurement configuration parameters of 5G NR have changed, it still performs cell measurement based on several pre-set and fixed parameters. At the same time, for NTN, the main reason for UE cell switching is the change in the location of the network equipment, which is different from the reason for UE cell switching in terrestrial cellular mobile communications. Therefore, if the measurement configuration parameters in the existing LTE or 5G NR are directly applied to the cell measurement process of the 5G NTN system, it cannot meet the cell measurement requirements of the NTN network.

[0041] Based on the above problems, the embodiments of the present application provide a method, device and storage medium for determining measurement configuration parameters.

[0042] The embodiment of the present application first provides a method for determining measurement configuration parameters applied to a network device. The method can be implemented by a processor of the network device. The above-mentioned processor can be at least one of an application-specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field programmable gate array (FPGA), a central processing unit (CPU), a controller, a microcontroller, and a microprocessor.

[0043] In one embodiment, the network device may include a base station device disposed on a satellite; illustratively, the satellite may include an artificial satellite; illustratively, the artificial satellite may include a near-Earth satellite.

[0044] In the embodiment of the present application, when the network device is a base station device, the base station device installed on the satellite can also be called a satellite base station.

[0045] Figure 1 A flow chart of a method for determining measurement configuration parameters of a network device provided in an embodiment of the present application is shown in FIG. Figure 1 As shown, the process may include the following steps:

[0046] Step 101: Determine K measurement configuration parameters associated with K sub-areas in a first area set to obtain a configuration parameter set.

[0047] The K sub-areas in the first area set 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 may be determined based on setting parameters of the network device; illustratively, the setting parameters may include location parameters and antenna configuration parameters of the network device.

[0049] Exemplarily, the location parameters of the network device can be calculated based on the current time and ephemeris data; exemplary, the ephemeris data can be obtained from a satellite information library stored in the network device, or can be obtained by the network device from other devices, or can be obtained by receiving broadcast data, which is not limited to the embodiments of the present application; wherein the 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] Exemplarily, after acquiring the ephemeris data, the network device may update the ephemeris data at a certain period; exemplary, the update period of the ephemeris data may be fixed or not, which may be determined specifically according to the changing requirements of the space environment in which the network device is located and the necessity of updating the ephemeris data.

[0051] Exemplarily, the ephemeris data may include orbit information of a satellite carrying a network device; wherein the ephemeris data may be represented in different forms, for example, the ephemeris data may be represented by orbital plane parameters and satellite-level parameters shown in Table 2. The orbital plane parameters are used to determine the orbital plane, including the semicircle, eccentricity, orbital inclination, right ascension of the ascending node, and perigee angular distance, and the satellite-level parameters are used to determine the precise position of the satellite, including the mean perigee angle at a reference time point and the ephemeris reference time.

[0052] The physical meaning of each parameter in Table 2 can be as follows Figure 2 As shown, Figure 2 This is a schematic diagram of the principle of the physical meaning of ephemeris data. Figure 2 As shown, in the three-dimensional space coordinate system, the origin of the coordinate system can be the center of the earth, the satellite 201 can be provided with network equipment, the orbital plane 202 can be the plane formed by the orbit of the satellite 201, and the plane formed by the horizontal coordinate axis and the vertical coordinate axis in the three-dimensional coordinate system can be the equatorial plane 203; wherein, the ascending node right ascension 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 center of the earth, the ascending node right ascension 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 anomaly at the reference time point.

[0053] Table 2

[0054]

[0055] Exemplarily, the antenna configuration parameters may include equivalent satellite antenna aperture, satellite equivalent isotropically radiated power (EIRP), satellite transmit maximum gain, 3dB beam width, and satellite beam diameter, etc.

[0056] Figure 3 It is a schematic diagram of the structure of the signal coverage area of ​​the network equipment. Figure 3 As shown, the signal coverage area 302 of the network device 301 can be a circular closed area, wherein the link between the terminal devices 303 in the signal coverage area 302 is a service link 304, and the network device 301 is connected to the core network 307 via the feeder link 306 between it and the gateway device 305.

[0057] In one implementation, when the satellite carrying the network device is a near-Earth satellite, the network device can forward signals in a regeneration mode, thereby realizing most functions of a base station.

[0058] In practical applications, after a network device obtains ephemeris data, it can not only determine its own signal coverage area, but also determine the positions of its neighboring network devices at the nth moment and their signal coverage areas, thereby determining the overlapping area of ​​the signal coverage areas between the network device and the neighboring network devices.

[0059] In the present application, the nth moment may be the current moment.

[0060] Figure 4 This is a schematic diagram of the structure where the signal coverage areas of adjacent network devices overlap. 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 circular closed area, such as Figure 4 The signal coverage areas of the first network device 401 to the third network device 403 may 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] Exemplarily, the first network device may be the network device in the aforementioned embodiment, and the second network device may be an adjacent network device provided on an adjacent satellite of the satellite, that is, the second network device may be an adjacent network device of the first network device.

[0062] Since the speed of low-Earth satellites orbiting the earth is inconsistent with the speed of the earth's rotation, and the speed of low-Earth satellites orbiting the earth is relatively high, in NTN, the reason for cell switching of UEs connected to network equipment comes from the high-speed flight of network equipment set on low-Earth satellites, and the reason comes from the ground displacement of ground UEs.

[0063] Figure 5A A schematic diagram of the principle of cell switching of terminal devices distributed within a network device signal coverage area provided in an embodiment of the present application, in Figure 5A In Figure 4 Taking the first network device 401 and the second network device 402 as examples, the principle of performing cell switching on 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 area 407 of the first cell 404 and the second cell 405, a critical area 501 (for the sake of convenience in explanation) connecting the intersection of the first cell 404 and the second cell 405 Figure 5A The area is simplified as a line segment in FIG. 4 ), which may be an area formed by critical points of cell switching between the first cell 404 and the second cell 405 .

[0065] exist Figure 5A In the figure, the first terminal 502 can be distributed at the geometric center of the first cell 404, and the second terminal 503 can be distributed on one side of the geometric center of the first cell 404 in the first overlapping area 407, that is, the current service cells of the first terminal 502 and the second terminal 503 are both the first cell 404.

[0066] Figure 5A The arrows in the middle indicate the flight directions 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 along the directions indicated by the arrows, the actual signal coverage areas of the first network device 401 and the second network device 402 also move accordingly.

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

[0068] Figure 5B Another schematic diagram of the principle of cell switching of terminal devices distributed within the network device signal coverage area provided in the embodiment of the present application. 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, so that the second terminal 503 located at the first overlapping area 407 near the geometric center of the first cell 404 at time T1 moves to the critical area 501 at time T2, that is, the geographical location critical line of the cell switching between the first cell 404 and the second cell 405. That is, at time T2, the probability of the second terminal 503 performing cell switching is very high, so in order to determine whether the cell switching needs to be performed, the second terminal 503 needs to perform cell measurement frequently before and after time T2; while at the same time, the first terminal 502 located at the geometric center of the first cell 404 at time T1 still does not move to the first overlapping area 407 at time T2, that is, the first terminal 502 does not need to perform frequent cell measurement before and after time T2.

[0069] In this case, if the measurement configuration scheme in the cellular mobile communication network is adopted, then in the period before and after the T2 moment, the measurement configuration scheme will cause the second terminal 503 to be unable to perform cell measurement in a timely manner. For the first terminal 502, unnecessary cell measurement causes 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 the LTE system, whether it is intra-frequency measurement or inter-frequency or inter-system measurement, the cell measurement window duration is fixed and the selection range of the measurement period is limited; FIG. 5A to FIG. 5B In the NTN composed of the first network device 401 and the second network device 402 shown, the urgency of performing cell measurement by terminal devices in different areas is different. If all terminal devices frequently and indiscriminately perform unnecessary cell measurement processes, it is easy to cause a decrease in system throughput; and in the LTE system, the low-frequency band bandwidth cannot meet the high-speed business data processing requirements, while the high-frequency band is used in the NTN, which will inevitably lead to the limitation of the beam coverage range of the NTN, and cannot meet the requirements of performing cell measurement based on CRS within the low-frequency band range of the LTE system.

[0071] Based on the above factors, when the network equipment is set up on a low-Earth satellite, in order to improve the real-time cell switching of terminal devices located in the edge area of ​​the signal coverage area of ​​the network equipment, and at the same time reduce the power consumption of terminal devices located in the non-edge area of ​​the signal coverage area and the negative impact on the throughput rate, it is very necessary to divide the signal coverage area of ​​the network equipment according to the urgency of the terminal equipment to perform cell switching, obtain multiple sub-areas, and control the terminal devices distributed in different sub-areas to perform different cell measurements.

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

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

[0074] According to the setting method between the network devices and the adjacent network devices set on the adjacent satellites of the satellite, the edge area of ​​the signal coverage area is divided to obtain a set of edge sub-areas with the same number as the adjacent network devices, and then the set of edge sub-areas and the central sub-area are determined as the first area set; illustratively, how to divide the edge area of ​​the signal coverage area can be determined according to the orientation between adjacent network devices and network devices.

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

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

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

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

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

[0080] In one implementation, the K measurement configuration parameters may be adjusted or determined based on at least one of a working period of the network device, a size of a signal coverage area, a signal configuration parameter of an adjacent network device, the number of adjacent network devices, and a setting location.

[0081] In one implementation, the measurement configuration parameters may include parameters based on which the terminal device performs cell measurement, such as SRS, SMTC, etc.

[0082] In one implementation, there may 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 may correspond to the kth sub-region in the first region set.

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

[0084] In one implementation, the terminal device may be a UE; exemplarily, the UE may include a mobile electronic device; exemplarily, the mobile electronic device may include a smart phone, etc.

[0085] In one embodiment, the network device can determine at least one measurement configuration parameter from a configuration parameter set according to a pre-set parameter sending strategy; exemplarily, the parameter sending strategy can be determined or adjusted according to the communication protocol between the network device and the terminal device, which is not limited to this embodiment of the present application.

[0086] In one embodiment, after receiving at least one measurement configuration parameter, the terminal device can perform cell measurement based on at least one measurement configuration parameter according to the cell measurement protocol between it and the network device, and report the measurement results to the network device in real time to determine whether the terminal device performs cell switching.

[0087] In one embodiment, a network device such as a base station device may send at least one measurement configuration parameter to a terminal device via measConfig carried in a Radio Resource Control (RRC) connection reconfiguration, wherein measConfig is used to indicate a measurement configuration of the terminal device including same-frequency measurement, different-frequency measurement, radio access technology (RAT), and measurement time interval, and the measurement configuration may include measObject, reportConfig, measId, and measGapConfig.

[0088] As can be seen from the above, the measurement configuration parameter determination method applied to the network device provided by the embodiment of the present application, the first area set including K sub-areas is obtained by dividing the signal coverage area of ​​the network device set on the satellite, thereby realizing the fine-grained division and management of the signal coverage area of ​​the satellite-borne network device; and, determining the K measurement configuration parameters associated with the K sub-areas in the first area set, after obtaining the configuration parameter set, when the K measurement configuration parameters are different from each other, through the K measurement configuration parameters, the network device can perform differentiated and targeted management and control of the cell measurement process for the terminal devices distributed in the K sub-areas, thereby improving the targetedness of the cell measurement performed by the terminal devices distributed in different sub-areas, reducing the negative impact on the throughput and power consumption of the terminal devices, and improving the stability of the communication connection of the terminal devices distributed in different sub-areas; on this basis, sending at least one measurement configuration parameter in the configuration parameter set to the terminal device that has established a communication connection with the network device, so that the terminal device can reduce unnecessary cell measurement operations in the process of performing cell measurement based on at least one measurement configuration parameter, and can also improve the flexibility and targetedness of the cell measurement, thereby improving the efficiency of cell switching, improving the stability of the terminal device service data processing, and thus meeting the cell measurement requirements of the NTN.

[0089] While a complete ground mobile network has been deployed in most areas of the world's land, it is difficult to cover areas with harsh natural environments such as deserts, forests and oceans, as well as traffic environments where high-speed vehicles such as airplanes or high-speed trains are located, through traditional ground networks such as cellular mobile networks due to cost or physical conditions. The NTN technology can effectively solve the mobile communication problems in the above-mentioned areas and environments. In addition, the measurement configuration parameter determination method for network equipment provided by the embodiment of the present application can further improve the NTN cell measurement configuration solution to meet the mobile communication and data transmission needs of terminal devices in the NTN signal coverage area.

[0090] At the same time, most of the current NTN solutions only support SMS services. The method provided by the embodiment of the present 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 embodiment, the method for determining measurement configuration parameters applied to a network device provided in the embodiment of the present 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 embodiment, the area unit may include a basic geographic range division unit contained in the signal coverage area; illustratively, the shape and size of the area unit may be determined by the network device based on the area status of the signal coverage area and the operating status of the network device, wherein the area status may include the terrain and altitude of the signal coverage area, and the pre-acquired distribution status of personnel in the signal coverage area, etc., and the operating status may include the number of pre-allocated area unit divisions in the operating resources of the network device.

[0094] For example, if the regional status indicates that the signal coverage area is a high-altitude, sparsely populated area, and the computing resources indicate that a large number of computing resources are used for regional unit division, the signal coverage area can be divided into a first number of regional units. If the computing resources indicate that a small number of computing resources are used for regional unit division, the signal coverage area can be divided into a second number of regional units, wherein 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 area units included in the signal coverage area.

[0096] In one embodiment, the distance data may be determined by:

[0097] The base station position of the network device is determined according to the ephemeris data and the nth time, and the distance data is then determined according to the base station position and the coordinate position of the regional unit.

[0098] The distance data is determined based on the data transmission delay between the network device and the regional unit.

[0099] Figure 6 A schematic diagram of the principle of signal transmission delay provided in an embodiment of the present application. Figure 6 In Figure 4 Taking the first network device and the second network device in the example, the division principle of obtaining the first area set is explained.

[0100] like Figure 6 As shown, the first terminal 502 may be located at the geometric center of the first cell 404, and the second terminal 503 may be located at one side of the geometric center of the first cell 404 in the first overlapping area 407. Due to the difference in position between the first terminal 502 and the second terminal 503 in the first cell 404, for the first network device 401, the distance d11 between it and the first terminal 502 is smaller than the distance d21 between it and the second terminal 503. The above distance difference causes a difference in signal transmission delay between the first terminal 502 and the second terminal 503 and the first network device 401, respectively.

[0101] At the same time, 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 above 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] And, from Figure 6 It can be seen that the value of |d12-d11| is greater than the value of |d21-d22|; combined with FIG. 5A to FIG. 5B It can be seen that the probability of cell switching occurring in the time period before and after time T2 for the first terminal 502 and the second terminal located at different positions in the first cell 404 is different. Therefore, it is necessary to divide the area where the first terminal 502 and the second terminal 503 are located into different sub-areas according to the distances between them and the first network device 401 respectively, so as to configure different measurement configuration parameters for the terminal devices in different sub-areas, thereby controlling the terminal devices in different sub-areas to perform targeted cell measurements.

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

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

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

[0106] The distance data is divided according to a predetermined distance division strategy to obtain a distance division result, and sets of area units corresponding to different results in the distance division result are determined as different sub-areas in the first area set.

[0107] Determine the base station projection point of the network device in the signal coverage area, determine the unit distance between the area unit and the base station projection point based on the distance data, and then divide the area unit according to each unit distance to obtain a first area set.

[0108] From the above, it can be seen that the measurement configuration parameter determination method applied to network equipment provided in the embodiment of the present application, after determining the distance data between the area unit in the signal coverage area and the network device, divides the area unit in the signal coverage area based on the distance data, thereby realizing the division of the signal coverage area according to the actual distance data between the area unit and the network device, thereby improving the accuracy of the signal coverage area division; and, since different distance data correspond to different signal transmission delays, therefore, by dividing the area units in the signal coverage area based on the distance data, each sub-area in the first zone set obtained by the division indirectly carries the delay information between them and the network device, thereby further reflecting the difference in signal transmission delay between each sub-area.

[0109] Based on the foregoing embodiment, in the method for determining measurement configuration parameters for a network device provided in an embodiment of the present application, the first area set is obtained by dividing the area units in the signal coverage area based on the distance data, which can be implemented in the following manner:

[0110] The distance data is divided to obtain K distance intervals; the area unit associated with the kth distance interval is divided into a kth sub-area; and the first sub-area to the Kth sub-area are determined to be a first area set.

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

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

[0113] The distances in the distance data are arranged in ascending or descending order to obtain a distance sorting result, and then the distance sorting result is divided into K distance intervals.

[0114] Arrange the distances in the distance data in ascending or descending order to obtain a distance sorting result. At the same time, determine the data transmission delay corresponding to each data according to the distance sorting result, and then divide the area units associated with the distance sorting result according to the above data transmission delay, so as to obtain K distance intervals; illustratively, the difference in data transmission delay between the area unit corresponding to the kth distance interval and the network device can be less than the delay threshold.

[0115] In one embodiment, the regional unit associated with the kth distance may be a set of regional units whose distance between the geometric centers of the regional units corresponding to the kth distance is less than the target threshold; illustratively, the target threshold may also be determined or divided according to the length of the data transmission delay between different regional units and the network device.

[0116] Figure 7 A schematic diagram of the division structure of the first area set provided in the embodiment of the present application is shown in FIG. Figure 7As shown, point P is the current position of the first network device 401. Figure 7 The circular closed area in the figure is the first cell, point O can be the base station projection point of the first network device 401 in the first cell, and the first cell can be divided into a first area set consisting of a first sub-area 701, a second sub-area 702, a third sub-area 703, a fourth sub-area 704 and a fifth sub-area 705.

[0117] Exemplarily, the first sub-region 701 may be a central sub-region of the first cell, the second sub-region 702 and the third sub-region 703 may be sub-central sub-regions of the first cell, and the fourth sub-region 704 and the fifth sub-region 705 may be edge sub-regions of the first cell.

[0118] Exemplarily, the line segment PO may be perpendicular to the plane where the first cell is located, and the straight line passing through the point O in the flight direction of the first network device 401 and the regional boundary between the first sub-area 701 and the second sub-area 702, the regional boundary between the second sub-area 702 and the fourth sub-area, and the regional boundary of the first cell, intersect at point A, point B, and point C, respectively. Among them, d1, d2, d3, and d4 are the lengths of the line segments PO, PA, PB, and PC, that is, the distances between the geometric center point of the first sub-area 701, the center point of the regional boundary between the first sub-area 701 and the second sub-area 702, the center point of the regional boundary between the second sub-area 702 and the fourth sub-area 704, and the regional boundary of the first cell, and the first network device 401, respectively.

[0119] Exemplarily, the distance data in the above-mentioned embodiment can be divided according to d1, d2, d3 and d4 respectively, so as to obtain 5 distance intervals, and the area units corresponding to the 5 distance intervals are divided into the above-mentioned five sub-areas.

[0120] As can be seen from the above, the measurement configuration parameter determination method for network devices provided in the embodiment of the present application divides the distance data to obtain K distance intervals, and divides the area unit associated with the kth distance interval into the kth sub-area, and determines the first sub-area to the Kth sub-area as the first area set. Therefore, the above-mentioned process of dividing the kth sub-area is determined based on the distance data between each area unit and the network device in the signal coverage area, so that the data transmission delay between the terminal device distributed in the kth sub-area and the network device can be closely related to the distance between the area unit and the network device in the kth sub-area, so that the data transmission delay associated with the kth sub-area can be determined in advance by the network device, thereby enhancing the pertinence of the network device to control the terminal devices distributed in the kth sub-area; and, the first sub-area to the Kth sub-area are determined as the first area set, so that any sub-area in the first area set has its corresponding and clear data transmission delay, thereby laying a foundation for the network device to manage the terminal devices in each sub-area in a targeted manner.

[0121] Based on the foregoing embodiment, the method for determining measurement configuration parameters applied to a network device provided in the embodiment of the present application may further include the following steps:

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

[0123] Among them, the regional update strategy at least includes an update strategy for the target sub-area; the target sub-area includes at least one sub-area at the boundary of the area to be updated in the second area set; the second area set includes a set of sub-areas obtained by dividing the signal coverage area of ​​the network device at the mth moment; 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 operation of the signal coverage area of ​​the network device may be performed at certain time intervals, thereby reducing the amount of data calculations generated by the network device due to frequent area divisions.

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

[0127] In one embodiment, the area update strategy may include a strategy for how to update the area boundary of the target sub-area, for example, updating the area boundary of the target sub-area in real time within a first time period while keeping the area boundaries of other sub-areas in the second area set except the target sub-area unchanged; for another example, updating the area boundary of the target sub-area at a specified frequency within the second time period, and updating the area boundaries of each sub-area in the second area set when the area boundary update range of the target sub-area is greater than a range threshold.

[0128] In one implementation, the region update strategy may be determined by any of the following methods:

[0129] The regional update strategy is determined based on the relative position relationship between the network device and the adjacent network devices. For example, if the number of adjacent network devices is greater than the base station number threshold, the regional update strategy can be determined as: updating the regional boundary of the target sub-area with a first frequency greater than the frequency threshold.

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

[0131] Step B2: at the nth time, the region boundary of the target sub-region is updated based on the region update strategy to obtain a first region set.

[0132] Among them, the mth moment is the historical moment of the nth moment; n is an integer greater than m.

[0133] In one implementation, the nth moment may be the current moment.

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

[0135] At the nth moment, the region boundary of the target sub-region is updated based on the region update strategy, and the target sub-region after the region boundary is updated and the sub-regions in the second region set whose region boundaries are not updated are determined as the first region set.

[0136] From the above, it can be seen that in the measurement configuration parameter determination method applied to a network device provided in an embodiment of the present application, the regional update strategy includes an update strategy for a target sub-area whose boundary is to be updated in a second area set, and the second area set includes a set of sub-areas obtained by dividing the signal coverage area of ​​the network device at the mth moment, so that the regional update strategy can reflect the continuous update of the second area set in the time dimension; and, since the mth moment is a historical moment of the nth moment, the first area set is obtained by updating the area boundary of the target sub-area based on the regional update strategy at the nth moment, so that the first area set is associated with the second area set in both the time dimension and the sub-area division dimension; at the same time, by updating the area boundary of the target sub-area in the second area set to obtain the first area set, the amount of calculation generated by updating the area boundaries of all sub-areas in the second area set can be reduced, thereby reducing the calculation load of the network device.

[0137] Based on the foregoing embodiments, in the measurement configuration parameter determination method for a network device provided in the embodiments of the present application, the area update strategy includes a strategy for determining a target sub-area.

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

[0139] Accordingly, the regional update strategy can be determined by the following steps:

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

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

[0142] In one implementation, after dividing the signal coverage area of ​​the network device at the mth moment, the network device may obtain first boundary information.

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

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

[0145] It should be noted that the execution order of step C1 and step C2 can be adjusted successively or executed in parallel, which is not limited in the embodiment of the present application.

[0146] Step C3: Based on the first boundary information and the flight state parameter, determine the second boundary information corresponding to the first boundary information at the nth moment.

[0147] In one implementation, the length and shape of the region boundary represented by the second boundary information may 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 may be determined in the following manner:

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

[0150] Step C4: determine a target area unit based on the first boundary information and the second boundary information; and determine a sub-area associated with the target area unit in the second area set as a target sub-area.

[0151] In one embodiment, the target area unit may include at least one area unit.

[0152] In one embodiment, the target area unit may be determined by any of the following methods:

[0153] According to 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, and if the area of ​​the region is greater than a first threshold, the area unit within the area of ​​the region is determined to be the target area unit.

[0154] According to the first boundary information and the second boundary information, a closed area formed by the first boundary information and the second boundary information is determined. If the closed area is a human activity area, an area unit included in the closed area is determined as a target area unit.

[0155] In one implementation, the target sub-region may be determined by any of the following methods:

[0156] A sub-region including a target region unit in the second region set is determined as a target sub-region.

[0157] The sub-regions in the second region set that include the target region unit, the sub-regions that are adjacent to the target region unit, and the sub-regions that are at a distance from the target region unit that is less than a second threshold are determined as target sub-regions.

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

[0159] Based on the foregoing embodiments, in the measurement configuration parameter determination method for a network device provided in the embodiments of the present application, the area update strategy at least includes an update condition for an area boundary of a target sub-area.

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

[0161] Accordingly, updating the region boundary of the target sub-region based on the region update strategy to obtain the first region set can be achieved by the following steps:

[0162] Step D1: determining distribution state change parameters of terminal devices distributed in the edge area of ​​the target sub-area.

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

[0164] In one implementation, the distribution state change parameter may include a change parameter of the distribution state of the terminal devices between the mth moment and the nth moment; illustratively, the distribution state of the terminal devices may include the number of terminal devices and / or the coordinate position of each terminal device.

[0165] In one embodiment, the distribution state change parameter can be determined by:

[0166] Taking the mth moment as the starting moment, the distribution status of the terminal devices in the second area set is continuously tracked, and in the time period between the mth moment and the nth moment, the above-mentioned dynamically changing distribution status is statistically analyzed to obtain statistical results, and then the relevant results of the terminal devices associated with the edge area of ​​the target area are filtered out from the statistical results, and the above-mentioned relevant results are determined as distribution status change parameters.

[0167] Step D2: If the distribution state change parameter meets the update condition, update the region boundary of the target sub-region to obtain a first region set.

[0168] Exemplarily, if the distribution state change parameter does not satisfy the update condition, the region boundary of the target sub-region may not be updated.

[0169] In one embodiment, the update condition may include that the number of terminals distributed in the area boundary of the target sub-area is greater than the device quantity change threshold; exemplarily, the device quantity change threshold can be determined based on the flight speed of the network device, the area size of the signal coverage area, and the area of ​​the edge area of ​​the target sub-area.

[0170] Figure 8 A schematic diagram of the principle of updating the region boundary of the target sub-region provided in an embodiment of the present application. Figure 8 In the figure, the updating process of the area boundary is described by taking the first network device 401 as an example.

[0171] like Figure 8 As shown, the signal coverage area of ​​the first network device at the mth moment is divided to obtain a second area set consisting of a sixth sub-area 801, a seventh sub-area 802, an eighth sub-area 803, a ninth sub-area 804, and a tenth sub-area 805. Exemplarily, the sixth sub-area 801 may be a central sub-area, the seventh sub-area 802 and the eighth sub-area 803 may be sub-central sub-areas, and the ninth sub-area 804 and the tenth sub-area 805 may be edge sub-areas.

[0172] Exemplarily, the first area boundary 806 may be the area boundary of the sixth sub-area 801 at the mth moment, and as the first network device 401 flies in the direction of the arrow, the first area boundary 806 changes to the second area boundary 807. At this time, the sixth sub-area 801 may be determined as the target sub-area based on the first area boundary 806 and the second area boundary 807.

[0173] Exemplarily, the first network device 401 can obtain the distribution state change parameter of the terminal device in the edge area of ​​the sixth sub-area 801. If the distribution state change parameter indicates that the number of terminal devices in the above-mentioned edge area that have established communication connections with the first network device 401 is greater than or equal to the change in the number of devices, the area boundary of the target sub-area is updated to the second area boundary 807.

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

[0175] Based on the foregoing embodiment, in the measurement configuration parameter determination method for a network device provided in the embodiment of the present application, determining the distribution state change parameter of the terminal device distributed in the edge area of ​​the target sub-area can be achieved by the following steps:

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

[0177] In one embodiment, a map with regional division boundaries can be established in the network device. During the flight of the network device, the first distribution state can be obtained based on the above 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 a second distribution state of the terminal devices in the second area set.

[0179] Exemplarily, the onboard device may obtain the second distribution state at the mth moment through the method provided in the aforementioned embodiment.

[0180] Step E3: Determine edge position data of an edge region of the target sub-region.

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

[0182] Step E4: determining distribution state change parameters based on the first distribution state, the second distribution state and the edge position data.

[0183] In one embodiment, the distribution state change parameter can be determined by:

[0184] The state data in the first distribution state and the second distribution state are screened according to the edge position data to obtain the state data associated with the edge position data, and then the state data at the mth moment is compared with the state data at the nth moment to obtain the distribution state change parameter.

[0185] From the above, it can be seen that in the measurement configuration parameter determination method for network equipment provided by the embodiment of the present application, after obtaining the first distribution state of the terminal device in the signal coverage area at the nth moment, 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-area, the distribution state change parameter can be determined based on the first distribution state, the second distribution state and the edge position data. In this way, since the distribution state change parameter is closely related to the first distribution state and the second distribution state generated by the network device due to the flight state, the distribution state change parameter can accurately characterize the actual flight state of the network device and the impact on the distribution state of the terminal device; and the distribution state change parameter is related to the edge position data of the edge area of ​​the target sub-area, so that the distribution state change parameter can accurately reflect the flight state of the network device, the terminal devices and distribution areas in the target sub-area that are first affected.

[0186] Based on the foregoing embodiment, in the measurement configuration parameter determination method for a network device provided in the embodiment of the present application, sending at least one measurement configuration parameter in the configuration parameter set to a terminal device that has established a communication connection with the network device can be implemented by the following operations:

[0187] The area information and configuration parameter set of the first area set 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 area set based on the current device location and area information of the terminal device, and obtain the kth measurement configuration parameter associated with the kth sub-area from the configuration parameter set, and then perform cell measurement based on the kth measurement configuration parameter.

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

[0189] In one implementation, after the network device detects that a terminal device is connected to the network device, the network device may 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 may obtain the kth sub-region where the terminal device is located from the first region set according to the relationship between the current device position and the coordinate information of the region boundary corresponding to the region boundary in the region information.

[0191] In one implementation, since the sub-areas in the first area set correspond one-to-one to the measurement configuration parameters in the configuration parameter set, after the terminal device determines the kth sub-area, it can obtain the kth measurement configuration information corresponding to the kth sub-area from the configuration parameter set.

[0192] In one embodiment, the kth measurement configuration information may include information such as the period, frequency, and time window for performing cell measurement within a specified time period; exemplarily, the specified time period may include the time period between the mth moment and the execution of the area boundary update operation in the aforementioned embodiment, that is, the specified time period can 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-area.

[0193] In one implementation, after the network device sends the area information and the configuration parameter set to the terminal device, it may no longer send 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, which is not limited in this embodiment of the present application.

[0194] As can be seen from the above, in the measurement configuration parameter determination method for network devices provided in the embodiment of the present application, 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 kth sub-area where the terminal device is currently located from the first area set based on the current device location and area information of the terminal device, and obtain the kth measurement configuration parameter associated with the kth sub-area from the configuration parameter set, and then perform cell measurement based on the kth measurement configuration parameter. In this way, the network device can send the area information and configuration parameter set indiscriminately to all terminal devices within its signal coverage area, thereby simplifying the configuration parameter sending process of the network device and improving the configuration parameter sending efficiency; and the terminal device determines the kth measurement configuration parameter by itself, which can also make full use of the increasingly enhanced data processing capabilities of the terminal device and improve the flexibility of cell measurement.

[0195] Based on the foregoing embodiment, in the measurement configuration parameter determination method for a network device provided in the embodiment of the present application, at least one measurement configuration parameter includes a kth measurement configuration parameter.

[0196] Accordingly, sending at least one measurement configuration parameter in the configuration parameter set to a terminal device that has established a communication connection with the network device may be implemented by the following steps:

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

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

[0199] In one implementation, the network device may not divide the signal coverage area in advance, but it may map the signal coverage area according to the map provided in the above embodiment, thereby obtaining a first area set.

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

[0201] From the above, it can be seen that in the measurement configuration parameter determination method applied to the network device provided in the embodiment of the present application, after the network device receives the current device position sent by the terminal device, it determines the kth sub-area where the terminal device is located from the first area set based on the current device position, thereby realizing the accurate sub-area division of the terminal device's location; and, sending the kth measurement configuration parameter associated with the kth sub-area 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 cell measurement based on the kth measurement configuration parameter in a targeted manner, thereby simplifying the cell measurement process of the terminal device.

[0202] Based on the foregoing embodiments, in the measurement configuration parameter determination method for a network device provided in the embodiments of the present application, the measurement configuration parameters at least include a measurement frequency configuration parameter.

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

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

[0205] Accordingly, determining K measurement configuration parameters associated with the K sub-areas in the first area set may be achieved by the following steps:

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

[0207] In one implementation, the probability threshold may be determined according to the configuration of the network device and adjacent network devices.

[0208] In one implementation, the probability threshold may be determined based on antenna configuration parameters of the network device, or based on a signal shielding state in a signal coverage area.

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

[0210] A set of area units in the signal coverage area whose distances from the geometric center of the signal coverage area are greater than a distance threshold is determined as a target edge area.

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

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

[0213] In one embodiment, the number of distances in the k-th region distance may be at least one; exemplarily, when the number of distances in the k-th region distance is one, the k-th region distance may be the distance between the geometric center of the k-th sub-region and the geometric center of the target edge region; exemplarily, when the number of distances in the k-th region distance is multiple, the k-th region distance may 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 a kth frequency measurement configuration parameter corresponding to the kth sub-region based on the kth region distance.

[0215] In one implementation, there may be a first association relationship between the frequency measurement configuration parameter and the area distance. Therefore, after determining the kth area distance, the kth frequency measurement configuration parameter corresponding to the kth sub-area may be determined according to the kth area distance and the first association relationship.

[0216] As can be seen from the above, the measurement configuration parameter determination method for network equipment provided in the embodiment of the present application can determine the kth measurement configuration parameter corresponding to the kth sub-area based on the kth area distance after determining the target edge area in the signal coverage area where the probability of cell switching is greater than the probability threshold, and the kth area distance between the kth sub-area and the target edge area. In this way, since the kth area distance is associated with the target edge area, the kth measurement frequency configuration parameter is indirectly associated with the target edge area. Therefore, through the above processing, the kth measurement frequency configuration parameter can be associated with the target edge area where the probability of cell switching is greater than the probability threshold, so that the kth measurement frequency configuration parameter can meet the needs of cell switching; and since the kth measurement frequency configuration parameter corresponds to the kth sub-area, in this way, by configuring the kth measurement frequency configuration parameter for the kth sub-area in a targeted manner, the pertinence of cell measurement can be improved, and the time cost and resource cost generated by unnecessary measurement operations can be reduced, thereby meeting the needs of green communication.

[0217] Based on the foregoing embodiment, in the measurement configuration parameter determination method for a network device provided in the embodiment of the present application, determining the kth measurement frequency configuration parameter corresponding to the kth sub-area based on the kth area distance can be implemented by the following steps:

[0218] Step H1, obtaining the flight status parameters of the satellite.

[0219] Step H2: Determine the kth switching period based on the kth area distance and the flight status parameter.

[0220] In one implementation, the quotient of the k-th area distance and the flight speed included in the flight state parameter may be determined as the k-th switching period.

[0221] Step H3: Determine the kth measurement frequency configuration parameter based on the kth switching period.

[0222] In an implementation manner, since different sub-areas correspond to different switching time periods, different frequency measurement configuration parameters may be configured for different sub-areas.

[0223] In one implementation, the kth measurement frequency configuration parameter may be inversely proportional to the kth switching period, that is, the kth measurement frequency configuration parameter may decrease as the kth switching period increases.

[0224] Fig. 9 A schematic diagram of the principle of determining frequency measurement configuration parameters provided in an embodiment of the present application. Fig. 9 In the present invention, the first network device 401 and the second network device 402 are still taken as examples to illustrate the above principle.

[0225] In the ground network, since the base station is located at a fixed position, the reason why the terminal device connected to the base station switches to a cell is due to the movement of the terminal device. Therefore, the frequency measurement configuration parameters based on which the terminal device performs cell measurement are fixed. However, for NTN, due to the high-speed movement of the near-earth satellite carrying the network equipment, the main reason why the terminal device connected to the network equipment performs cell switching is the high-speed movement of the network equipment. Therefore, the fixed frequency measurement configuration parameters in the ground network cannot meet the measurement requirements of the cell switching of the terminal equipment in the NTN.

[0226] like Fig. 9 As shown, the distance between the second terminal 503 located in the first overlapping area 407 and the critical area 501 is recorded as d5, and the distance between the first terminal 502 located in the central sub-area of ​​the first cell 404 and the critical area 501 is recorded as d6; since the flight speed of the first network device 401 is much greater than the moving speeds of the first terminal 502 and the second terminal 503, the moving speeds of the first terminal 502 and the second terminal 503 can be approximated to 0.

[0227] Exemplarily, when the first network device 401 flies in the direction indicated by the arrow at a speed of v, the time for the first terminal 502 to move to the critical area 501 is d6 / v, and the time for the second terminal 503 to move to the critical area 501 is d5 / v. Since d6 is greater than d5, the switching period corresponding to the first terminal 502 located in the central sub-area is greater than the switching period corresponding to the second terminal 503 located in the first overlapping area 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, that is, a lower measurement frequency configuration parameter, can be set for the first terminal 502 and the central sub-area; and for the second terminal 503 and the edge sub-area where it is located, a shorter measurement time interval, that is, 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-area can quickly perform cell measurement, thereby determining whether to perform cell switching.

[0228] From the above, it can be seen that in the cell switching method applied to network equipment provided by the embodiment of the present application, after obtaining the flight status parameters of the network equipment, the kth switching period is determined based on the kth area distance and the flight status parameters. In this way, the kth switching period can intuitively and accurately characterize the time period between the moment when the kth sub-area of ​​the distribution performs cell switching and the mth moment; and the kth measurement frequency configuration parameters determined based on the kth switching period can not only meet the cell measurement requirements of the terminal devices distributed in the kth sub-area, but also reduce the power consumption of these terminal devices due to performing unnecessary cell measurements.

[0229] Based on the foregoing embodiments, in the method for determining measurement configuration parameters applied to a network device provided in the embodiments of the present application, the measurement configuration parameters include a measurement window duration.

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

[0231] In one implementation, the measurement window duration may include a time period length corresponding to at least one downlink channel state information reference signal (Channel-State-Information Reference Signal, CSI-RS) used for performing cell measurement.

[0232] Accordingly, determining K measurement configuration parameters associated with the K sub-areas in the first area set may be achieved by the following steps:

[0233] Step K1, determine the first spatial position and the second spatial position.

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

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

[0236] Step K2: Determine, based on the first spatial position and the second spatial position, a kth measurement window duration associated with the kth sub-region in the first region set.

[0237] In one implementation, the kth measurement window duration may be implemented in the following manner:

[0238] There may be a second association relationship between the measurement window duration and 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 kth sub-region, the kth measurement window duration corresponding to the kth sub-region may be determined in combination with the above-mentioned second association relationship.

[0239] From the above, it can be seen that in the measurement configuration parameter determination method applied to the network device provided in the embodiment of the present application, after determining the first spatial position of the satellite and the second spatial position of the adjacent satellite, the kth measurement window duration associated with the kth sub-area in the first area set is determined based on the first spatial position and the second spatial position. In this way, not only is the kth measurement window duration closely related to the first spatial position and the second spatial position, but the kth measurement window duration can also meet the dynamic cell measurement requirements of the network device and the adjacent network device; at the same time, since the kth measurement window duration is also associated with the kth sub-area, different sub-areas have different measurement window durations, which can meet the time requirements of cell measurements in different sub-areas.

[0240] Based on the foregoing embodiment, in the measurement configuration parameter determination method for a network device provided in the embodiment of the present application, determining the kth measurement window duration associated with the kth sub-area in the first area set based on the first spatial position and the second spatial position can be implemented by the following steps:

[0241] Step L1: Based on the first spatial position, determine a first delay between the network device and the kth sub-area.

[0242] In one implementation, the first delay may be calculated in the following manner:

[0243] A first base station distance between the network device and the kth sub-area is determined according to the first spatial position, and then a first delay is determined based on the first base station distance and a signal transmission speed.

[0244] Step L2: Based on the second spatial position and the k-th area position of the second sub-area, determine the second delay between the adjacent network device set on the adjacent satellite and the k-th sub-area.

[0245] Step L3: Determine the length of the kth 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 may be determined by the difference between the second delay and the first delay, which may reflect the difference in signal transmission delay between the terminal device and the network device and between adjacent network devices.

[0247] In one implementation, the length of the kth measurement window may be greater than or equal to the sum of the first delay and the delay difference.

[0248] In actual applications, since the distance between network equipment and the earth's surface is relatively far, for terminal devices distributed at different locations on the earth's surface, the difference between the first base station distance between it and the network device with which a communication connection is established and the second base station distance between it and the adjacent network device will cause a large path delay difference between it 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 use the same SMTC configuration parameters to perform cell measurements. Fig. 9 In the NTN composed of the first network device 401 and the second network device 402 shown, the path delays between the terminal devices at different locations and the first network device 401 and the second network device 402 are different. At this time, if the same SMTC configuration parameters are configured for the terminal devices at different locations, then in order to overcome the signal transmission delay caused by the path delay, it is necessary to set a longer SMTC window for the terminal device, which will lead to a decrease in the system throughput. Therefore, the SMTC parameter configuration in the 5G NR system cannot meet the cell measurement requirements of the 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, Fig. 9 The two network devices shown send SSB signals at the same time interval. Due to the path delay difference, the SSBs sent by the two devices arrive at the same terminal device at different times. Therefore, in order to enable the terminal device to perform cell measurements of the network device and the adjacent network device at the same time, the network device needs to set a longer SMTC window time length for the terminal device with which it has established a communication connection, so that the SMTC window time length can cover the SSB signals sent by the network device and the SSB signals sent by the adjacent network device.

[0251] Fig.10 This is a schematic diagram of the principle of configuring the measurement window duration provided in an embodiment of the present application. Fig.10 In the description, the first network device and the second network device adjacent to the first network device are still used as examples. Fig.10 As shown, the time when the first SSB signal 1001 sent by the first network device arrives at the terminal device is within 0-2ms after the start time. At this time, if the adjacent setting relationship between the second network device and the first network device is not considered, the SMTC window duration can be set to 2ms; but if the adjacent setting relationship between the second network device and the first network device needs to be considered, it is necessary to adjust the SMTC window duration of 2ms 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 time when the second SSB signal 1002 sent by the second network device arrives at the terminal device is 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 time length can be adjusted from 2ms to 3ms based on the above-mentioned delay difference of 1ms.

[0252] exist Fig.10 In the figure, the first SSB signal 1001 and the second SSB signal 1002 may each 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 may be any number.

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

[0254] Exemplarily, for a terminal device that is 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 shorter, even if the cell measurement is performed at a higher frequency, it will not have a significant negative impact on the service data processing process of the terminal device.

[0255] Therefore, different measurement window durations may be configured for terminal devices distributed in different sub-areas in the signal coverage area of ​​the network device, so as to improve the quality of cell measurement.

[0256] From the above, it can be seen that in the measurement configuration parameter determination method applied to the network device provided in the embodiment of the present application, the first delay between the network device and the kth sub-area is determined based on the first spatial position, and the second delay between the adjacent network device and the kth sub-area is determined based on the second spatial position. Through the delay difference between the second delay and the first delay, the difference in signal transmission delay between the terminal devices distributed in different sub-areas within the signal coverage area of ​​the network device and the network device and the adjacent network devices can be accurately reflected; and, based on the delay difference between the second delay and the first delay and the first delay, the kth measurement window length is determined, so that the kth measurement window length is not only directly related to the delay difference and the first delay, but also indirectly related to the second delay, so that the kth measurement window length can make up for the delay difference between the first delay and the second delay, and the negative impact of cell measurement on terminal devices in different sub-areas.

[0257] Based on the above embodiments, the embodiments of the present application also provide a method for determining measurement configuration parameters applied to a terminal device. The method can be implemented by a processor of the terminal device, and the processor can be at least one of an ASIC, a DSP, a DSPD, a PLD, an FPGA, a CPU, a controller, a microcontroller, and a microprocessor.

[0258] Fig.11 A flow chart of a method for determining measurement configuration parameters applied to a terminal device provided in an embodiment of the present application is shown in FIG. Fig.11 As shown, the method may include the following steps:

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

[0260] Among them, 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-areas in a first area set; the configuration parameter set is determined by a network device set on a satellite; the first area set is 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.

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

[0262] From the above, it can be seen that the measurement configuration parameter determination method applied to the terminal device provided in the embodiment of the present application is that after the terminal device establishes a communication connection with the network device, the terminal device receives at least one measurement configuration parameter sent by the network device, and the at least one measurement configuration parameter is included in the configuration parameter set determined by the network device set on the satellite, and the K measurement configuration parameters in the configuration parameter set are respectively associated with the K sub-areas obtained by the network device dividing its signal coverage area. In this way, the signal coverage area is divided into K sub-areas in advance by the network device, and the K measurement configuration parameters in the configuration parameter set are associated with the K sub-areas, so that after the terminal device receives at least one measurement configuration parameter, it performs a sub-area dimension and differentiated cell measurement according to the at least one measurement configuration parameter. It provides measurement configuration parameter guarantee; and since the configuration parameter set is determined by the network device, the cell measurement performed by the terminal device based on the at least one measurement configuration parameter can meet the cell measurement requirements of the NTN constituted by the terminal device and the network device.

[0263] Based on the foregoing embodiment, in the measurement configuration parameter determination method applied to a terminal device provided in the embodiment of the present application, receiving at least one measurement configuration parameter sent by a network device can be implemented in the following manner:

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

[0265] Exemplarily, the network device may indiscriminately send a base station configuration parameter set to all terminal devices with which a communication connection is established.

[0266] Accordingly, the method for determining measurement configuration parameters applied to a terminal device provided in an embodiment of the present application may further include the following steps:

[0267] Receive area information of a first area set sent by a network device; obtain the current device location of the terminal device; based on the current device location and the area information, determine the kth sub-area where the terminal device is currently located from the first area set; 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] Here, k is an integer greater than or equal to 1 and less than or equal to K.

[0269] From the above, it can be seen that in the measurement configuration parameter determination method applied to the network device provided in the embodiment of the present application, the network device sends a configuration parameter set to the terminal device, thereby simplifying the parameter determination and sending process of the network device; and, the terminal device determines the current k-th sub-area of ​​the terminal device from the first area set based on the area information of the first area set sent by the network device and the current device position, so that the terminal device can determine the k-th sub-area in real time according to the current device position. In this way, when the current device position changes, the terminal device can determine the k-th sub-area by itself, thereby simplifying the data interaction process between it and the network device, and 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, when the k-th sub-area where the terminal device is located changes, the terminal device can determine the k-th measurement configuration parameter by itself, thereby simplifying the process of determining the k-th measurement configuration parameter.

[0270] Based on the foregoing embodiment, in the measurement configuration parameter determination method applied to a terminal device provided in the embodiment of the present application, receiving at least one measurement configuration parameter sent by a network device can be implemented in the following manner:

[0271] The current device location of the terminal device is sent to the network device; and the kth measurement configuration parameter initiated by the network device is received.

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

[0273] From the above, it can be seen that the measurement configuration parameter determination method applied to the terminal device provided in the embodiment of the present application is that after the terminal device sends the current device location to the network device, the network device determines the kth sub-area where the terminal device is located from the first area set based on the current device location, and determines the kth measurement configuration parameter associated with the kth sub-area, thereby realizing that the network device can perform targeted determination of the kth measurement configuration parameter based on which the terminal device performs cell measurement based on the sub-area where the terminal device is actually located; on this basis, the terminal device receives the kth measurement configuration parameter, which can also reduce the amount of data transmission between the terminal device and the network device.

[0274] Based on the foregoing embodiments, the embodiment of the present application provides a method for determining measurement configuration parameters applied to a terminal device, wherein the kth measurement configuration parameter includes a kth measurement frequency configuration parameter and / or a kth measurement window duration.

[0275] Accordingly, performing cell measurement based on at least one measurement configuration parameter may be implemented in the following manner:

[0276] The cell measurement is performed based on the kth measurement frequency configuration parameter and / or the kth measurement window duration.

[0277] From the above, it can be seen that in the measurement configuration parameter determination method applied to the terminal device provided in the embodiment of the present application, after the terminal device obtains the kth measurement frequency configuration parameter and / or the kth measurement window duration associated with the sub-area in which it is located, the cell measurement is performed based on the kth measurement frequency configuration parameter and / or the kth measurement window duration, thereby achieving precise control of the cell measurement performed by the terminal device in the measurement frequency dimension and / or the measurement window duration dimension.

[0278] Based on the foregoing embodiments, an embodiment of the present application further provides a network device, which is arranged on a satellite. Fig. 12A A schematic diagram of the structure of a network device provided in an embodiment of the present application, such as Fig. 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 applied to the network device 1201 as provided in any of the previous embodiments.

[0279] Based on the above embodiments, the present application also provides a terminal device, Fig. 12B A schematic diagram of the structure of a terminal device provided in an embodiment of the present application, such as Fig. 12B As shown, the terminal device 1204 includes a second processor 1205 and a second memory 1206; a second computer program is stored in the second memory 1206; when the second computer program is executed by the second processor 1205, it can implement the cell switching method applied to the terminal device 1204 as provided in any of the previous embodiments.

[0280] For example, Fig.13 The network device 14 in the Figure 3 The network device shown in FIG. 1 is the same as the first network device, the second network device and the third network device in other figures.

[0281] Fig.13 A schematic diagram of a flow chart of a network device configuring measurement configuration parameters for a terminal device provided in an embodiment of the present application. Fig.13 As shown, the process may include the following steps:

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

[0283] Exemplarily, the near-Earth satellite information library may include ephemeris data and antenna configuration data.

[0284] Exemplarily, the ephemeris data may include ephemeris data of the network device and neighboring network devices.

[0285] Exemplarily, the antenna configuration data may include data related to the antenna configuration of the network device and neighboring network devices.

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

[0287] Exemplarily, the method provided in the aforementioned embodiment can be used to divide the signal coverage area into K sub-areas according to the distances between different area units in the signal coverage area and the network device, and the K sub-areas are determined as the first area set.

[0288] Exemplarily, the method provided by the aforementioned embodiment can be used to update the sub-area regularly or irregularly based on the flight status parameters of the network device, the distribution status of the terminal devices in the signal coverage area, and the distribution status change parameters of the terminal devices in the target sub-area.

[0289] Exemplarily, the network device may also determine a set of configuration parameters corresponding to the multiple sub-areas.

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

[0291] Exemplarily, after the above-mentioned communication connection is established, context data between the network device and the terminal device can be obtained through the above-mentioned communication connection; exemplary, the context data may include the device location of the terminal device, the business data requested or processed by the terminal device, and the status parameters of the communication connection between the terminal device and the network device, etc.

[0292] Step 1304: allocate corresponding SMTC windows and measurement frequencies to terminal devices distributed in different sub-areas according to the current device locations of the terminal devices.

[0293] Exemplarily, the SMTC window may be a parameter in the measurement window duration in the aforementioned embodiment.

[0294] Exemplarily, the measurement frequency may be the measurement frequency configuration parameter in the aforementioned embodiment.

[0295] Exemplarily, the network device may obtain the current device location of the terminal device, determine the kth sub-area where the terminal device is located based on the current device location, and then send the SMTC window and measurement frequency corresponding to the kth sub-area to the terminal device.

[0296] Exemplarily, the network device can also send its predetermined configuration parameter set and sub-area area information to the terminal device, so that the terminal device can determine its kth sub-area based on the current device location and area information, and obtain the kth measurement configuration parameter associated with the kth sub-area from the configuration parameter set.

[0297] Through the above process, the network device can not only divide its signal coverage area into sub-areas, but also allocate corresponding SMTC windows and measurement frequencies to the terminal device according to the current device location of the terminal device.

[0298] Fig.14 A schematic diagram of a process flow of performing cell measurement by a terminal device provided in an embodiment of the present application. Fig.14 As shown, the process may include the following steps:

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

[0300] Exemplarily, the terminal device may 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 sent by the network device.

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

[0303] Based on the foregoing embodiments, the embodiments of the present application also provide a computer-readable storage medium, which stores a computer program; when the computer program is executed by a processor of an electronic device, it can implement a method for determining measurement configuration parameters applied to a network device, or a method for determining measurement configuration parameters applied to a terminal device, as provided in any of the previous embodiments.

[0304] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[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 embodiments or device embodiments.

[0308] It should be noted that the above-mentioned computer-readable storage medium can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory (Flash Memory), a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM) and other memories; it can also be various electronic devices including 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 article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0310] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

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

[0312] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0313] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0314] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0315] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for determining measurement configuration parameters, characterized in that: The method is applied to a network device, the network device is arranged on a satellite, and the method comprises: Determine K measurement configuration parameters associated with K sub-areas in the first area set to obtain a configuration parameter set; wherein the K sub-areas in the first area set 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; At least one measurement configuration parameter in the configuration parameter set is sent to a terminal device that has established a communication connection with the network device, so that the terminal device performs cell measurement based on the at least one measurement configuration parameter.

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

3. The method according to claim 2, characterized in that The dividing the area units in the signal coverage area based on the distance data to obtain the first area set includes: Dividing the distance data to obtain K distance intervals; Divide the area unit associated with the kth distance interval into the kth sub-area; wherein 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 comprises: Determine a regional update strategy; wherein the regional update strategy at least includes an update strategy for a target sub-region; the target sub-region includes at least one sub-region at the boundary of the to-be-updated region 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 the mth moment; m is an integer greater than or equal to 1; At the nth moment, the region boundary of the target sub-region is updated based on the region update strategy to obtain the first region set; wherein the mth moment is a historical moment of the nth moment; 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 determining of the regional update strategy includes: Acquire first boundary information of the second area set; Acquiring flight status parameters of the satellite; Determining, based on the first boundary information and the flight state parameter, second boundary information corresponding to the first boundary information at the nth moment; Determine a target area unit based on the first boundary information and the second boundary information; A 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 at least includes an update condition of the region boundary of the target sub-region; and the updating of the region boundary of the target sub-region based on the region update strategy to obtain the first region set includes: Determine distribution state change parameters of terminal devices distributed in the edge area of ​​the target sub-area; If the distribution state change parameter satisfies the update condition, the region boundary of the target sub-region is updated to obtain the first region set.

7. The method according to claim 6, characterized in that The determining of the distribution state change parameter of the terminal devices distributed in the edge area of ​​the target sub-area includes: Obtaining a first distribution state of the terminal device in the signal coverage area at the nth moment; Acquire a second distribution state of the terminal device in the second area set; Acquire edge position data of an edge area of ​​the target sub-area; The distribution state change parameter is determined based on the first distribution state, the second distribution state and the edge position data.

8. The method according to claim 1, characterized in that The sending at least one measurement configuration parameter in the configuration parameter set to a terminal device that has established a communication connection with the network device includes: The area information of the first area set and the configuration parameter set 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 area set based on the current device location of the terminal device and the area information, and obtain the kth measurement configuration parameter associated with the kth sub-area 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 kth measurement configuration parameter; and the sending of at least one measurement configuration parameter in the configuration parameter set to a terminal device that has established a communication connection with the network device includes: Receiving the current device location of the terminal device sent by the terminal device; Based on the current device location, determining the kth sub-area where the terminal device is located from the first area set; Sending a kth measurement configuration parameter associated with the kth sub-area to the terminal device, so that the terminal device performs 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 a measurement frequency configuration parameter; and the determining of K measurement configuration parameters associated with the K sub-areas in the first area set includes: Determine a target edge area within the signal coverage area where the probability of cell switching is greater than a probability threshold; Determine a kth region distance between a kth subregion among the K subregions and the target edge region; wherein k is an integer greater than or equal to 1 and less than or equal to K; A kth measurement frequency configuration parameter corresponding to the kth sub-area is determined based on the kth area distance.

11. The method according to claim 10, characterized in that The determining, based on the kth area distance, a kth measurement frequency configuration parameter corresponding to the kth sub-area includes: Acquiring flight status parameters of the satellite; Determining a kth switching period based on the kth area distance and the flight status parameter; The kth measurement frequency configuration parameter is determined based on the kth switching period.

12. The method according to claim 1, characterized in that The measurement configuration parameters include a measurement window duration; and the determining of K measurement configuration parameters associated with the K sub-areas in the first area set includes: Determine a first spatial position and a second spatial position; wherein the first spatial position includes the spatial position of the satellite; the second spatial position includes the spatial position of a satellite adjacent to the satellite; Based on the first spatial position and the second spatial position, determine the kth measurement window length associated with the kth sub-area in the first area set; wherein 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 The determining, based on the first spatial position and the second spatial position, a kth measurement window duration associated with a kth sub-region in the first region set includes: Determining a first delay between the network device and the kth sub-area based on the first spatial position; Determine, based on the second spatial position, a second delay between an adjacent network device provided on the adjacent satellite and the kth sub-area; The kth measurement window length 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 comprises: Receiving 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-areas in a first area set; the configuration parameter set is determined by the network device set on the satellite; the first area 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 the at least one measurement configuration parameter.

15. The method according to claim 14, characterized in that The receiving at least one measurement configuration parameter sent by the network device includes: Receiving a configuration parameter set sent by the network device; The method further comprises: Receiving area information of a first area set sent by the network device; Obtaining the current device location of the terminal device; Based on the current device location and the area information, determine the kth sub-area in which the terminal device is currently located from the first area set; wherein k is an integer greater than or equal to 1 and less than or equal to K; Acquire a kth measurement configuration parameter corresponding to the kth sub-area from the configuration parameter set.

16. The method according to claim 14, characterized in that The receiving at least one measurement configuration parameter sent by the network device includes: Sending the current device location of the terminal device to the network device; Receive the kth measurement configuration parameter sent by the network device; wherein the kth measurement configuration parameter is associated with the kth sub-area in the first area set; the kth sub-area includes the sub-area 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 kth measurement configuration parameter includes a kth measurement frequency configuration parameter and / or a kth measurement window duration; and performing cell measurement based on the at least one measurement configuration parameter includes: The cell measurement is performed based on the kth measurement frequency configuration parameter and / or the kth measurement window duration.

18. A network device, characterized in that: The network device is set in a satellite; the network device includes a first processor and a first memory; a first computer program is stored in the first memory; 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; a second computer program is stored in the second memory; when the second computer program is executed by the second processor, the measurement configuration parameter determination method as described in any one of claims 14 to 17 can be implemented.

20. A computer-readable storage medium, characterized in that: A third computer program is stored in the storage medium; when the third computer program is executed by the processor of the electronic device, it can 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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