Satellite beam adjustment method and device, communication device and medium

Abstract

The invention relates to a satellite beam adjustment method and device, a communication device and a medium. The method comprises the following steps: receiving received signal quality information and position information sent by each user in a first beam coverage range, determining a user proportion of which the signal-to-noise ratio of a received signal is lower than a preset signal-to-noise ratio threshold by using the received signal quality information, and carrying out primary judgment on whether beam adjustment is carried out by using the user proportion; if it is judged that beam adjustment needs to be carried out once, that is, the user proportion is larger than a preset user proportion threshold, user distribution information is determined through the position information, and the user distribution information comprises a distribution type; using the user distribution information to carry out secondary judgment on whether to adjust the beam or not; and if the secondary judgment can be performed for beam adjustment, namely, the distribution type is centralized distribution, adjusting the first beam by using the user distribution information. Therefore, after beam adjustment is determined through two times of judgment, self-adaptive adjustment of the first beam is realized by using the user distribution information, and the signal receiving quality of the user under the coverage of the first beam is improved.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of communication technologies, and more particularly, to a satellite beam adjustment method, apparatus, communication device, and medium. Background Art

[0002] Based on the current implementation and solution formulation of satellite Internet broadband communication technologies, the satellite beam width does not change after beam establishment. When satellite users on the ground or in low space are densely distributed within the beam range, due to the low signal-to-noise ratio of the air interface link and the fact that the downlink power of the satellite base station still cannot meet the user service bandwidth requirements even after being adjusted to the maximum, the current solutions cannot adaptively improve the link quality. Summary of the Invention

[0003] At least one embodiment of the present application provides a satellite beam adjustment method, apparatus, communication device, and medium.

[0004] In a first aspect, an embodiment of the present application proposes a satellite beam adjustment method applied to a satellite base station. The method includes:

[0005] Receiving the received signal quality information and location information sent by each user within the coverage of a first beam;

[0006] Based on the received signal quality information, determining the proportion of users within the coverage of the first beam whose received signal signal-to-noise ratio is lower than a preset signal-to-noise ratio threshold;

[0007] If the proportion of users is greater than a preset proportion threshold of users, then based on the location information, determining the user distribution information within the coverage of the first beam, where the user distribution information includes the distribution type;

[0008] If the distribution type is a centralized distribution, then adjusting the first beam based on the user distribution information.

[0009] In some embodiments, determining the proportion of users within the coverage of the first beam whose received signal signal-to-noise ratio is lower than a preset signal-to-noise ratio threshold based on the received signal quality information includes:

[0010] Based on the received signal quality information, determining the received signal signal-to-noise ratio of each user within the coverage of the first beam;

[0011] Based on the received signal signal-to-noise ratio of each user within the coverage of the first beam, counting the number of users within the coverage of the first beam whose received signal signal-to-noise ratio is lower than the preset signal-to-noise ratio threshold;

[0012] Calculating the proportion of users based on the number of users and the total number of users within the coverage of the first beam.

[0013] In some embodiments, determining the user distribution information within the coverage of the first beam based on the location information includes:

[0014] Based on the location information, the pose information of the satellite, and the normal direction of the first beam pointing, project each user within the coverage of the first beam onto the ground plane;

[0015] Determine the user distribution information within the coverage of the first beam based on the projected positions.

[0016] In some embodiments, if the distribution type is centralized distribution, the user distribution information further includes: the central position and boundary information of the user centralized distribution range; adjusting the first beam based on the user distribution information includes:

[0017] Adjust the central pointing of the first beam to point to the central position;

[0018] Adjust the width of the first beam based on the boundary information so that the adjusted first beam covers the user centralized distribution range.

[0019] In some embodiments, after adjusting the first beam based on the user distribution information, the method further includes:

[0020] Receive a user access request, where the user access request carries the location information of the user to be accessed;

[0021] If the location information of the user to be accessed is within the initial coverage of the first beam and outside the adjusted coverage of the first beam, check whether there is a second beam that has established a bearer and covers the user to be accessed;

[0022] If there is a second beam, access the user to be accessed in the second beam.

[0023] In some embodiments, after checking whether there is a second beam that has established a bearer and covers the user to be accessed, the method further includes:

[0024] If there is no second beam, determine whether there is a third beam that has not established a bearer and covers the user to be accessed;

[0025] If there is a third beam, establish a bearer for the third beam and access the user to be accessed in the third beam.

[0026] In some embodiments, after determining whether there is a third beam that has not established a bearer and covers the user to be accessed, the method further includes:

[0027] If there is no third beam, based on the location information of the user to be accessed and the location information of all users covered by the adjusted first beam, adjust the first beam again so that the re-adjusted first beam covers the user to be accessed and all the users covered by the first beam before the re-adjustment;

[0028] Access the user to be accessed in the re-adjusted first beam.

[0029] In a second aspect, an embodiment of the present application further provides a satellite beam adjustment device, which is applied to a satellite base station. The device includes:

[0030] A first unit, configured to receive the received signal quality information and location information sent by each user within the coverage of the first beam;

[0031] A second unit, configured to determine, based on the received signal quality information, the proportion of users within the coverage of the first beam whose received signal signal-to-noise ratio is lower than a preset signal-to-noise ratio threshold;

[0032] A third unit, configured to, if the user proportion is greater than a preset user proportion threshold, determine, based on the location information, the user distribution information within the coverage of the first beam, where the user distribution information includes a distribution type;

[0033] A fourth unit, configured to, if the distribution type is a centralized distribution, adjust the first beam based on the user distribution information.

[0034] In a third aspect, an embodiment of the present application further provides a communication device, which includes a memory, a transceiver, and a processor:

[0035] The memory is configured to store a computer program; the transceiver is configured to transmit and receive data under the control of the processor; the processor is configured to read the computer program in the memory and execute:

[0036] Receive the received signal quality information and location information sent by each user within the coverage of the first beam;

[0037] Based on the received signal quality information, determine the proportion of users within the coverage of the first beam whose received signal signal-to-noise ratio is lower than a preset signal-to-noise ratio threshold;

[0038] If the user proportion is greater than a preset user proportion threshold, determine, based on the location information, the user distribution information within the coverage of the first beam, where the user distribution information includes a distribution type;

[0039] If the distribution type is a centralized distribution, adjust the first beam based on the user distribution information.

[0040] In some embodiments, determining the proportion of users within the coverage of the first beam whose received signal signal-to-noise ratio is lower than a preset signal-to-noise ratio threshold based on the received signal quality information includes:

[0041] Based on the received signal quality information, determine the received signal signal-to-noise ratio of each user within the coverage of the first beam;

[0042] Based on the received signal signal-to-noise ratio of each user within the coverage of the first beam, count the number of users within the coverage of the first beam whose received signal signal-to-noise ratio is lower than a preset signal-to-noise ratio threshold;

[0043] Calculate the user ratio based on the number of users and the total number of users within the coverage of the first beam.

[0044] In some embodiments, based on the location information, determine the user distribution information within the coverage of the first beam, including:

[0045] Project each user within the coverage of the first beam onto the ground surface plane based on the location information, the pose information of the satellite, and the normal direction of the first beam pointing;

[0046] Determine the user distribution information within the coverage of the first beam based on the projection positions.

[0047] In some embodiments, if the distribution type is centralized distribution, the user distribution information further includes: the central position and boundary information of the user centralized distribution range; adjusting the first beam based on the user distribution information includes:

[0048] Adjust the central pointing of the first beam to point to the central position;

[0049] Adjust the width of the first beam based on the boundary information so that the adjusted first beam covers the user centralized distribution range.

[0050] In some embodiments, after adjusting the first beam based on the user distribution information, the processor is further configured to:

[0051] Receive a user access request, where the user access request carries the location information of the user to be accessed;

[0052] If the location information of the user to be accessed is within the initial coverage of the first beam and outside the adjusted coverage of the first beam, check whether there is a second beam that has established a bearer and covers the user to be accessed;

[0053] If there is a second beam, access the user to be accessed in the second beam.

[0054] In some embodiments, after checking whether there is a second beam that has established a bearer and covers the user to be accessed, the processor is further configured to:

[0055] If there is no second beam, determine whether there is a third beam that has not established a bearer and covers the user to be accessed;

[0056] If there is a third beam, establish a bearer for the third beam and access the user to be accessed in the third beam.

[0057] In some embodiments, after determining whether there is a third beam that has not established a bearer and covers the user to be accessed, the processor is further configured to:

[0058] If there is no third beam, based on the location information of the user to be connected and the location information of all users covered by the adjusted first beam, the first beam is adjusted again so that the re-adjusted first beam covers the user to be connected and all the users covered by the first beam before the re-adjustment;

[0059] Connect the user to be connected to the re-adjusted first beam.

[0060] Fourthly, an embodiment of the present application also provides a processor-readable storage medium. The processor-readable storage medium stores a program, and the program is used to make a processor execute the satellite beam adjustment method of any embodiment of the first aspect.

[0061] It can be seen that in at least one embodiment of the present application, after the first beam is sent, by receiving the received signal quality information and location information sent by each user within the coverage of the first beam, the proportion of users whose received signal-to-noise ratio within the coverage of the first beam is lower than the preset signal-to-noise ratio threshold is determined by using the received signal quality information, and the user proportion is used to make a first judgment on whether to adjust the beam; if the first judgment requires beam adjustment, that is, the user proportion is greater than the preset user proportion threshold, the user distribution information within the coverage of the first beam is determined by using the location information, and the user distribution information includes the distribution type; the user distribution information is used to make a second judgment on whether to adjust the beam; if the second judgment can perform beam adjustment, that is, the distribution type is a centralized distribution, the first beam is adjusted by using the user distribution information. It can be seen that the embodiment of the present application determines whether to adjust the beam through two judgments, and after determining to perform beam adjustment, the first beam is adaptively adjusted by using the user distribution information to improve the received signal quality of users under the coverage of the first beam, thereby improving the user service perception. Description of the Drawings

[0062] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0063] Figure 1 It is a schematic flowchart of a satellite beam adjustment method provided by an embodiment of the present application;

[0064] Figure 2 It is a schematic flowchart of a user access process proposed by an embodiment of the present application;

[0065] Figure 3 It is a schematic flowchart of a satellite beam adjustment process provided by an embodiment of the present application;

[0066] Figure 4Schematic diagram of a satellite beam adjustment device provided by an embodiment of the present application;

[0067] Figure 5 Schematic diagram of a communication device provided by an embodiment of the present application. Detailed implementation manners

[0068] In order to more clearly understand the above objects, features, and advantages of the present application, the following further detailed description of the present application is provided in conjunction with the accompanying drawings and embodiments. It can be understood that the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The specific embodiments described herein are only used to explain the present application, rather than limiting the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0069] It should be noted that, in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0070] Currently, the width of each beam of the satellite is fixed after transmission. Regardless of the number of users under the beam, or whether the user distribution under the beam is dense or sparse, the width of the beam remains unchanged. For the optimization and adjustment of the signal-to-noise ratio of the downlink air interface link, the satellite base station can only improve it by increasing the downlink transmission power, but the maximum linear saturation value of the output power of the satellite's signal transmitter is constant. At the same time, since the wider the beam width, the larger the coverage range at a certain distance, the weaker the received signal power of the users within the coverage range under the condition of constant total transmission power; conversely, the smaller the beam width, the stronger the received signal power of the users under the same conditions.

[0071] To this end, the embodiments of the present application propose a satellite beam adjustment method, device, communication device or medium. After sending the first beam, by receiving the received signal quality information and location information sent by each user within the coverage of the first beam, the proportion of users with a received signal-to-noise ratio lower than a preset signal-to-noise ratio threshold within the coverage of the first beam is determined using the received signal quality information, and the user proportion is used for a first determination of whether to adjust the beam. If the first determination requires beam adjustment, that is, the user proportion is greater than the preset user proportion threshold, the user distribution information within the coverage of the first beam is determined using the location information, and the user distribution information includes the distribution type; the user distribution information is used for a second determination of whether to adjust the beam. If the second determination allows beam adjustment, that is, the distribution type is a centralized distribution, the first beam is adjusted using the user distribution information. It can be seen that the embodiments of the present application determine whether to adjust the beam through two determinations, and after determining to adjust the beam, the first beam is adaptively adjusted using the user distribution information to improve the received signal quality of users under the coverage of the first beam, thereby improving the user service perception.

[0072] Figure 1 FIG. is a flowchart of a satellite beam adjustment method provided by an embodiment of the present application, and this method is applied to a satellite base station. As Figure 1 shown, the satellite beam adjustment method may include but is not limited to the following steps 101 to step 104:

[0073] In step 101, receive the received signal quality information and location information sent by each user within the coverage of the first beam.

[0074] In this embodiment, after the satellite base station sends the first beam, the satellite terminals of each user within the coverage of the first beam report the location information to the satellite base station and feedback the received signal quality information to the satellite base station. In some embodiments, the satellite terminal periodically reports the location information and feedbacks the received signal quality information to the satellite base station, and the location information reporting period is the same as the received signal quality information feedback period.

[0075] In step 102, based on the received signal quality information, determine the proportion of users with a received signal-to-noise ratio lower than a preset signal-to-noise ratio threshold within the coverage of the first beam.

[0076] In this embodiment, the satellite base station can determine the received signal-to-noise ratio of each user within the coverage of the first beam based on the received signal quality information and the transmission signal power of the satellite base station. For example, the satellite base station can determine the noise power based on the transmission signal power and the received signal power in the received signal quality information, and then calculate the received signal-to-noise ratio based on the received signal power and the noise power.

[0077] In this embodiment, after the satellite base station determines the received signal signal-to-noise ratio (SNR) of each user within the coverage of the first beam, it can count the number of users whose received signal SNR within the coverage of the first beam is lower than a preset SNR threshold; and then calculate the user ratio based on the number of users and the total number of users within the coverage of the first beam.

[0078] In step 103, if the user ratio is greater than a preset user ratio threshold, then based on the location information, determine the user distribution information within the coverage of the first beam, where the user distribution information includes the distribution type.

[0079] In this embodiment, the satellite base station uses the user ratio to make a primary judgment on whether to adjust the beam. For example: the satellite base station determines whether the user ratio is greater than a preset user ratio threshold. If the user ratio is greater than the preset user ratio threshold, it indicates that the received signal quality of most users under the first beam is poor and beam adjustment is required. Then the result of the primary judgment by the satellite base station is: beam adjustment is required. If the user ratio is less than or equal to the preset user ratio threshold, it indicates that the received signal quality of most users under the first beam is good and beam adjustment is not required. Then the result of the primary judgment by the satellite base station is: beam adjustment is not required.

[0080] In this embodiment, when the satellite base station determines through the primary judgment that beam adjustment is required, it uses the location information to determine the user distribution information within the coverage of the first beam, and the user distribution information includes but is not limited to the distribution type. Among them, the distribution type can be a centralized distribution or a decentralized distribution. For the centralized distribution, for example, there are users in a certain area within the coverage of the first beam, and there are no users in other areas. It can also be understood that the users are relatively concentrated in a certain area within the coverage of the first beam. For the decentralized distribution, for example, there are users in both the edge area and the central area within the coverage of the first beam.

[0081] In some embodiments, the satellite base station determines the user distribution information within the coverage of the first beam based on the location information, for example, including the following steps (1) and (2):

[0082] (1) The satellite base station projects each user within the coverage of the first beam onto the ground surface plane based on the location information, the position and attitude information of the satellite (including the position information and attitude information of the satellite), and the normal direction of the first beam pointing.

[0083] For example, a satellite coordinate system is constructed based on the satellite's pose information, that is, the position information of the satellite is used as the origin of the satellite coordinate system, and the attitude information of the satellite is used to determine the orientation of the coordinate axes of the satellite coordinate system; and a surface plane coordinate system is constructed based on the normal direction of the first beam pointing, that is, the normal direction of the first beam pointing is used as the direction of one of the coordinate axes of the surface plane coordinate system; furthermore, the position information of the user is converted from the satellite coordinate system to the surface plane coordinate system to obtain the projected position of the user on the surface plane. Among them, the conversion of the position information from the satellite coordinate system to the surface plane coordinate system belongs to the mature technology of coordinate conversion in this field and will not be elaborated here.

[0084] (2) The satellite base station determines the user distribution information within the coverage of the first beam based on the projected position.

[0085] Among them, the user distribution information includes the distribution type, and may also include the projected position of the user on the surface plane. When determining the user distribution information, it can be based on the projected positions of different users to determine whether all users within the coverage of the first beam are distributed in any area within the coverage of the first beam. If so, it means that the users are relatively concentratedly distributed in a certain area within the coverage of the first beam, and the distribution type is determined to be a centralized distribution; otherwise, the distribution type is determined to be a decentralized distribution.

[0086] In step 104, if the distribution type is a centralized distribution, the first beam is adjusted based on the user distribution information.

[0087] In this embodiment, the satellite base station uses the distribution type in the user distribution information to make a secondary judgment on whether to adjust the beam. For example: the satellite base station determines whether the distribution type is a centralized distribution. If the distribution type is a centralized distribution, it means that after the beam is adjusted, all users within the initial coverage of the first beam can still be covered, and the beam coverage service for any user is not affected. Then the result of the secondary judgment of the satellite base station is: the beam can be adjusted. If the distribution type is a decentralized distribution, it means that after the beam is adjusted, some users (such as users in the edge area within the coverage of the first beam) may not be covered by the beam, and the beam should not be adjusted. Then the result of the secondary judgment of the satellite base station is: the beam cannot be adjusted. In some embodiments, if the distribution type is a decentralized distribution, the first beam can also be simulated to be adjusted first, and then based on the simulation result that all users within the initial coverage of the first beam can be covered, the first beam can be actually adjusted.

[0088] In this embodiment, if the distribution type is centralized distribution, the user distribution information further includes: the central position and boundary information of the user centralized distribution range. When the satellite base station can perform beam adjustment through secondary judgment, the first beam is adjusted using the user distribution information. For example, the satellite base station adjusts the central pointing of the first beam to point to the central position of the user centralized distribution range. After the satellite base station adjusts the central pointing of the first beam, the width of the first beam is adjusted based on the boundary information of the user centralized distribution range, so that the adjusted first beam covers the user centralized distribution range.

[0089] In this embodiment, the adjusted first beam can cover all users covered by the first beam before adjustment, and the coverage range of the adjusted first beam is smaller than the coverage range of the first beam before adjustment. That is, step 104 reduces the coverage range of the first beam based on the user distribution information.

[0090] It can be seen that in the embodiment of the present application, it is determined whether to perform beam adjustment through two judgments. After it is determined to perform beam adjustment, the central pointing and width of the first beam are adaptively adjusted using the user distribution information. Since the width of the first beam is reduced, the received signal power of the user is enhanced under the constant total transmission power. Therefore, the received signal quality of the users covered by the first beam can be improved, thereby improving the user service perception.

[0091] Based on the above embodiment, Figure 2 FIG. is a schematic diagram of a user access process proposed in an embodiment of the present application, and the execution subject of this user access process is a satellite base station. In Figure 2 the user access process includes the following steps 201 to 203:

[0092] In step 201, after adjusting the first beam based on the user distribution information, a user access request is received. The user access request carries the location information of the user to be accessed.

[0093] Among them, the user to be accessed is a new user of the satellite.

[0094] In step 202, if the location information of the user to be accessed is within the initial coverage range of the first beam and outside the coverage range of the adjusted first beam, it is checked whether there is a second beam that has established a bearer and covers the user to be accessed.

[0095] Among them, the initial coverage range of the first beam is the coverage range originally planned by the satellite base station. The beam with an established bearer refers to the beam that can already provide coverage services for users.

[0096] In this embodiment, since the location information of the user to be connected is within the initial coverage range of the first beam, the user to be connected should originally be connected to the first beam. However, due to the adjustment of the first beam, the adjusted first beam cannot cover the user to be connected. Therefore, the user to be connected cannot be connected to the adjusted first beam, so it is necessary to check whether there is a second beam that has established a bearer and covers the user to be connected.

[0097] It should be noted that if the user to be connected is not within the initial coverage range of the first beam, then according to the existing access process, for example, find the beam that covers the user to be connected and connect the user to be connected to that beam.

[0098] In step 203, if there is a second beam, connect the user to be connected on the second beam.

[0099] In this embodiment, the second beam is a beam resource that can be scheduled by the satellite base station, and the initial coverage range of the second beam can cover the user to be connected. Therefore, the satellite base station connects the user to be connected on the second beam, and the second beam provides coverage services for the new user to meet the access and service requirements of the new user.

[0100] In some embodiments, after checking whether there is a second beam that has established a bearer and covers the user to be connected in step 202, the user access process further includes:

[0101] If there is no second beam, determine whether there is a third beam that has not established a bearer and covers the user to be connected; if there is a third beam, establish a bearer for the third beam and connect the user to be connected on the third beam; if there is no third beam, based on the location information of the user to be connected and the location information of all users covered by the adjusted first beam, adjust the first beam again so that the readjusted first beam covers the user to be connected and all users covered by the first beam before the readjustment, and connect the user to be connected on the readjusted first beam.

[0102] In this embodiment, the third beam is a beam resource that has not established a bearer by the satellite base station, and the initial coverage range of the third beam can cover the user to be connected. Therefore, if there is a third beam, the satellite base station establishes a bearer for the third beam and connects the user to be connected on the third beam, and the third beam provides coverage services for the new user; if there is no third beam, the satellite base station adjusts the first beam again. It should be noted that the readjustment of the first beam is a readjustment after the adjustment of the first beam in step 104. The readjusted first beam can cover the user to be connected and all users covered by the first beam before the readjustment, and connect the user to be connected on the readjusted first beam, and the readjusted first beam provides coverage services for the new user.

[0103] In some embodiments, based on the location information of the user to be connected and the location information of all users covered by the adjusted first beam, the first beam is adjusted again so that the re-adjusted first beam covers the user to be connected and all the users covered by the first beam before the re-adjustment. For example:

[0104] Based on the location information of the user to be connected and the location information of all users covered by the adjusted first beam, determine the area that includes the user to be connected and all the users covered by the first beam before the re-adjustment. Based on this area, adjust the first beam again. For example: Re-adjust the center pointing of the first beam to point to the center position of this area, and then adjust the width of the first beam based on the boundary information of this area so that the re-adjusted first beam covers this area.

[0105] It should be noted that the coverage range of the re-adjusted first beam may expand. The purpose is to connect the user to be connected and provide coverage services for the user to be connected. However, since the coverage range expands, that is, the width of the first beam increases, the received signal power of the user weakens under the constant total transmission power. Therefore, subsequently, the first beam can be optimized according to the Figure 1 embodiment shown to improve the received signal quality of the users under the coverage of the first beam.

[0106] Based on the above embodiments, Figure 3 FIG. is a schematic diagram of a satellite beam adjustment process provided by an embodiment of the present application. The execution subject of this satellite beam adjustment process is a satellite base station. As Figure 3 shown, the satellite beam adjustment process is described as follows:

[0107] 1. The satellite base station stores the received signal quality information and location information periodically reported by all online users (User 1 to User N) within the coverage of Beam A. When the signal-to-noise ratio of the user's received signal is lower than the low signal-to-noise ratio threshold of the downlink received signal quality (i.e., the preset signal-to-noise ratio threshold), the count is incremented by 1. After all online users are counted, the count is X, and the ratio to the total number of online users is Y%. That is, the proportion of users within the coverage of Beam A whose received signal-to-noise ratio is lower than the preset signal-to-noise ratio threshold is Y%.

[0108] 2. The satellite base station determines whether the user ratio is greater than the preset user ratio threshold (denoted as Z%). If Y% ≤ Z%, the satellite base station does not adjust the width and center pointing of Beam A, and the satellite base station executes steps 1 and 2 according to the measurement reporting period. If Y% > Z%, then execute step 3.

[0109] 3. The satellite base station determines the user distribution information within the coverage of Beam A.

[0110] In this embodiment, the satellite base station projects the spatial users within the beam coverage onto the ground plane based on the location information (longitude, latitude, altitude) reported by the users, the location and attitude information of the satellites, and the normal direction of the beam pointing, and determines the user distribution information within the ground projection coverage plane, where the user distribution information includes the distribution type.

[0111] 4. The satellite base station determines whether the distribution type is a centralized distribution. If it is a centralized distribution, it adjusts beam A. If it is not a centralized distribution, it simulates adjusting beam A and determines whether adjusting beam A will cause some users to have no service. If it will cause this, it does not adjust beam A. If it will not cause this, it adjusts beam A.

[0112] In this embodiment, if there are users at the edges in the four directions of up, down, left, and right in the ground projection coverage plane, and after the satellite base station simulates adjusting the width of beam A or increasing the central pointing adjustment, some users will not be covered by the beam, then the satellite base station does not adjust the width and central pointing of beam A, and the satellite base station executes steps 1 to 4 according to the user location reporting period. If the users are relatively concentrated within the ground projection coverage plane, and after the satellite base station simulates adjusting the width and central pointing of beam A within a certain range, it does not affect the beam coverage service of any user, then the satellite base station adaptively and dynamically adjusts the width and central pointing of beam A according to the simulation scheme.

[0113] 5. The satellite base station cyclically executes steps 1 to 4 according to the user location and the measurement reporting period.

[0114] 6. When there are new users to be accessed within the beam coverage originally planned by beam A but outside the existing beam coverage, if there is a beam B with an established bearer under this satellite base station that can cover the new users, the new users directly access through beam B. If there is no beam B with an established bearer under this satellite base station that can cover the new users, then step 7 is executed.

[0115] 7. If the satellite base station determines that there are redundant beams C without established bearers that can be scheduled and the planned coverage of beam C can cover the new users, the satellite base station establishes a bearer for beam C and provides coverage service for the new users. If the satellite base station has no redundant beams C without established bearers that can be scheduled, the satellite base station adjusts the beam width or central pointing of beam A again to meet the coverage service of the new users.

[0116] It should be noted that for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art can understand that the embodiments of the present application are not limited by the described action sequence, because according to the embodiments of the present application, certain steps can be performed in other sequences or simultaneously. In addition, those skilled in the art can understand that the embodiments described in the specification are all optional embodiments.

[0117] Figure 4 FIG. is a schematic diagram of a satellite beam adjustment device provided by an embodiment of the present application. The satellite beam adjustment device is applied to a satellite base station. As Figure 4 shown, the satellite beam adjustment device includes, but is not limited to: a first unit 41, a second unit 42, a third unit 43, and a fourth unit 44. The function descriptions of each unit are as follows:

[0118] The first unit 41 is configured to receive the received signal quality information and location information sent by each user within the coverage range of the first beam;

[0119] The second unit 42 is configured to determine, based on the received signal quality information, the proportion of users whose received signal signal-to-noise ratio within the coverage range of the first beam is lower than a preset signal-to-noise ratio threshold;

[0120] The third unit 43 is configured to, if the user proportion is greater than a preset user proportion threshold, determine, based on the location information, the user distribution information within the coverage range of the first beam, where the user distribution information includes a distribution type;

[0121] The fourth unit 44 is configured to, if the distribution type is a centralized distribution, adjust the first beam based on the user distribution information.

[0122] In some embodiments, the second unit 42 is configured to:

[0123] Determine the received signal signal-to-noise ratio of each user within the coverage range of the first beam based on the received signal quality information; count the number of users whose received signal signal-to-noise ratio within the coverage range of the first beam is lower than a preset signal-to-noise ratio threshold based on the received signal signal-to-noise ratio of each user within the coverage range of the first beam; calculate the user proportion based on the number of users and the total number of users within the coverage range of the first beam.

[0124] In some embodiments, the third unit 43 determines the user distribution information within the coverage range of the first beam based on the location information, including:

[0125] Project each user within the coverage range of the first beam onto the ground surface plane based on the location information, the pose information of the satellite, and the normal direction of the first beam pointing; determine the user distribution information within the coverage range of the first beam based on the projection positions.

[0126] In some embodiments, if the distribution type is centralized distribution, the user distribution information further includes: the central position and boundary information of the user centralized distribution range; the fourth unit 44 adjusts the first beam based on the user distribution information, including:

[0127] Adjusting the central pointing of the first beam to point to the central position; adjusting the width of the first beam based on the boundary information so that the adjusted first beam covers the user centralized distribution range.

[0128] In some embodiments, the satellite beam adjustment device further includes a fifth unit, which is configured to, after the fourth unit 44 adjusts the first beam based on the user distribution information, receive a user access request, where the user access request carries the location information of the user to be accessed; if the location information of the user to be accessed is within the initial coverage range of the first beam and outside the adjusted coverage range of the first beam, check whether there is a second beam that has established a bearer and covers the user to be accessed; if there is a second beam, the user to be accessed is accessed in the second beam.

[0129] In some embodiments, the fifth unit is further configured to:

[0130] After checking whether there is a second beam that has established a bearer and covers the user to be accessed, if there is no second beam, determine whether there is a third beam that has not established a bearer and covers the user to be accessed; if there is a third beam, establish a bearer for the third beam and access the user to be accessed in the third beam.

[0131] In some embodiments, the fifth unit is further configured to:

[0132] After determining whether there is a third beam that has not established a bearer and covers the user to be accessed, if there is no third beam, based on the location information of the user to be accessed and the location information of all users covered by the adjusted first beam, adjust the first beam again so that the re-adjusted first beam covers the user to be accessed and all users covered by the first beam before the re-adjustment; access the user to be accessed in the re-adjusted first beam.

[0133] Figure 4 For details of the embodiments of the satellite beam adjustment device shown, refer to Figure 1 Details of the embodiments of the satellite beam adjustment method shown are not described in detail.

[0134] The embodiments of the present application further provide a processor-readable storage medium, where the processor-readable storage medium stores a program, and the program is used to cause the processor to execute Figure 1 The steps of the embodiments of the satellite beam adjustment method shown. The processor-readable storage medium may be a non-transitory computer-readable storage medium.

[0135] The processor-readable storage medium may be any available medium or data storage device accessible by the processor, including but not limited to magnetic memories (such as floppy disks, hard disks, magnetic tapes, magneto-optical discs (MO), etc.), optical memories (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor memories (such as ROM, EPROM, EEPROM, non-volatile memories (NANDFLASH), solid state drives (SSD)), etc.

[0136] Figure 5 Schematic diagram of a communication device provided by an embodiment of the present application, as Figure 5 shown, the communication device provided by the embodiment of the present application includes a memory 51, a transceiver 52, and a processor 53:

[0137] The memory 51 is used to store computer programs; the transceiver 52 is used to transmit and receive data under the control of the processor 53; the processor 53 is used to read the computer programs in the memory 51 and execute:

[0138] Receive the received signal quality information and location information sent by each user within the coverage of the first beam;

[0139] Based on the received signal quality information, determine the proportion of users within the coverage of the first beam whose received signal signal-to-noise ratio is lower than a preset signal-to-noise ratio threshold;

[0140] If the user proportion is greater than a preset user proportion threshold, then based on the location information, determine the user distribution information within the coverage of the first beam, and the user distribution information includes the distribution type;

[0141] If the distribution type is a centralized distribution, then adjust the first beam based on the user distribution information.

[0142] In some embodiments, based on the received signal quality information, determining the proportion of users within the coverage of the first beam whose received signal signal-to-noise ratio is lower than a preset signal-to-noise ratio threshold includes:

[0143] Based on the received signal quality information, determine the received signal signal-to-noise ratio of each user within the coverage of the first beam;

[0144] Based on the received signal signal-to-noise ratio of each user within the coverage of the first beam, count the number of users within the coverage of the first beam whose received signal signal-to-noise ratio is lower than a preset signal-to-noise ratio threshold;

[0145] Based on the number of users and the total number of users within the coverage of the first beam, calculate the user proportion.

[0146] In some embodiments, based on the location information, determining the user distribution information within the coverage of the first beam includes:

[0147] Project each user within the coverage of the first beam onto the ground plane based on the location information, the pose information of the satellite, and the normal direction of the first beam pointing direction;

[0148] Determine the user distribution information within the coverage of the first beam based on the projected positions.

[0149] In some embodiments, if the distribution type is centralized distribution, the user distribution information further includes: the central position and boundary information of the centralized user distribution range; adjusting the first beam based on the user distribution information includes:

[0150] Adjust the central pointing direction of the first beam to point to the central position;

[0151] Adjust the width of the first beam based on the boundary information so that the adjusted first beam covers the centralized user distribution range.

[0152] In some embodiments, after adjusting the first beam based on the user distribution information, the processor is further configured to:

[0153] Receive a user access request, which carries the location information of the user to be accessed;

[0154] If the location information of the user to be accessed is within the initial coverage of the first beam and outside the adjusted coverage of the first beam, check whether there is a second beam that has established a bearer and covers the user to be accessed;

[0155] If there is a second beam, allow the user to be accessed in the second beam.

[0156] In some embodiments, after checking whether there is a second beam that has established a bearer and covers the user to be accessed, the processor is further configured to:

[0157] If there is no second beam, determine whether there is a third beam that has not established a bearer and covers the user to be accessed;

[0158] If there is a third beam, establish a bearer for the third beam and allow the user to be accessed in the third beam.

[0159] In some embodiments, after determining whether there is a third beam that has not established a bearer and covers the user to be accessed, the processor is further configured to:

[0160] If there is no third beam, readjust the first beam again based on the location information of the user to be accessed and the location information of all users covered by the adjusted first beam, so that the readjusted first beam covers the user to be accessed and all the users covered by the first beam before the readjustment;

[0161] Allow the user to be accessed in the readjusted first beam.

[0162] Figure 5 Among them, the transceiver 52 is used to receive and send data under the control of the processor 53. The bus architecture may include any number of interconnected buses and bridges, specifically, various circuits represented by one or more processors represented by the processor 53 and the memory represented by the memory 51 are linked together. The bus architecture can also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, and thus will not be further described herein. The bus interface provides an interface. The transceiver 52 can be multiple components, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium, and these transmission media include wireless channels, wired channels, optical fiber cables, and other transmission media. The processor 53 is responsible for managing the bus architecture and general processing, and the memory 51 can store the data used by the processor 53 when performing operations.

[0163] Figure 5 Among them, the processor 53 can be an integrated circuit chip with the ability to process signals. In the implementation process, each step of the above method can be completed by the integrated logic circuit in the hardware of the processor 53 or the instructions in the form of software. The processor 53 can be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc.

[0164] It should be noted that in this article, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, the elements defined by the statement "including..." do not exclude the existence of additional identical elements in the process, method, article or device including such element.

[0165] Those skilled in the art can understand that although some of the embodiments described herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of this application and forms different embodiments.

[0166] Those skilled in the art can understand that the descriptions of the respective embodiments have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0167] Although the embodiments of the present application are described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A satellite beam adjustment method applied to a satellite base station, the method comprising: Receiving the received signal quality information and location information sent by each user within the coverage of the first beam; Based on the received signal quality information, determining the proportion of users within the coverage of the first beam whose received signal signal-to-noise ratio is lower than a preset signal-to-noise ratio threshold; If the user proportion is greater than a preset user proportion threshold, then based on the location information, determining the user distribution information within the coverage of the first beam, where the user distribution information includes a distribution type; If the distribution type is a centralized distribution, then adjusting the first beam based on the user distribution information.

2. The method according to claim 1, wherein, The determining the proportion of users within the coverage of the first beam whose received signal signal-to-noise ratio is lower than a preset signal-to-noise ratio threshold based on the received signal quality information includes: Based on the received signal quality information, determining the received signal signal-to-noise ratio of each user within the coverage of the first beam; Based on the received signal signal-to-noise ratio of each user within the coverage of the first beam, counting the number of users within the coverage of the first beam whose received signal signal-to-noise ratio is lower than the preset signal-to-noise ratio threshold; Based on the number of users and the total number of users within the coverage of the first beam, calculating the user proportion.

3. The method according to claim 1, wherein The determining the user distribution information within the coverage of the first beam based on the location information includes: Based on the location information, the pose information of the satellite, and the normal direction of the first beam pointing, projecting each user within the coverage of the first beam onto the surface plane; Based on the projection positions, determining the user distribution information within the coverage of the first beam.

4. The method according to claim 1, wherein If the distribution type is a centralized distribution, then the user distribution information further includes: the central position and boundary information of the user centralized distribution range; the adjusting the first beam based on the user distribution information includes: Adjusting the central pointing of the first beam to point to the central position; Based on the boundary information, adjusting the width of the first beam so that the adjusted first beam covers the user centralized distribution range.

5. The method according to claim 1, wherein After adjusting the first beam based on the user distribution information, the method further includes: Receiving a user access request, where the user access request carries the location information of the user to be accessed; If the location information of the user to be accessed is within the initial coverage of the first beam and outside the adjusted coverage of the first beam, then checking whether there is a second beam that has established a bearer and covers the user to be accessed; If there is a second beam, then accessing the user to be accessed in the second beam.

6. The method according to claim 5, wherein, After checking whether there is a second beam that has established a bearer and covers the user to be accessed, the method further includes: If there is no second beam, then determining whether there is a third beam that has not established a bearer and covers the user to be accessed; If there is a third beam, then establishing a bearer for the third beam and accessing the user to be accessed in the third beam.

7. The method according to claim 5, wherein After determining whether there is a third beam that has not established a bearer and covers the user to be accessed, the method further includes: If there is no third beam, based on the location information of the to-be-connected user and the location information of all users covered by the adjusted first beam, adjust the first beam again so that the re-adjusted first beam covers the to-be-connected user and all users covered by the first beam before the re-adjustment; Connect the to-be-connected user to the re-adjusted first beam.

8. A satellite beam adjustment device, applied to a satellite base station, the device includes: A first unit, configured to receive the received signal quality information and location information sent by each user within the coverage range of the first beam; A second unit, configured to determine, based on the received signal quality information, the proportion of users whose received signal signal-to-noise ratio within the coverage range of the first beam is lower than a preset signal-to-noise ratio threshold; A third unit, configured to, if the user proportion is greater than a preset user proportion threshold, determine, based on the location information, the user distribution information within the coverage range of the first beam, where the user distribution information includes a distribution type; A fourth unit, configured to, if the distribution type is a centralized distribution, adjust the first beam based on the user distribution information.

9. A communication device, the communication device includes a memory, a transceiver, and a processor: A memory for storing a computer program; The transceiver is configured to send and receive data under the control of the processor; The processor is configured to read and execute the computer program in the memory: Receive the received signal quality information and location information sent by each user within the coverage range of the first beam; Determine, based on the received signal quality information, the proportion of users whose received signal signal-to-noise ratio within the coverage range of the first beam is lower than a preset signal-to-noise ratio threshold; If the user proportion is greater than a preset user proportion threshold, determine, based on the location information, the user distribution information within the coverage range of the first beam, where the user distribution information includes a distribution type; If the distribution type is a centralized distribution, adjust the first beam based on the user distribution information.

10. The communication device according to claim 9, wherein, The determining, based on the received signal quality information, the proportion of users whose received signal signal-to-noise ratio within the coverage range of the first beam is lower than a preset signal-to-noise ratio threshold includes: Determine the received signal signal-to-noise ratio of each user within the coverage range of the first beam based on the received signal quality information; Based on the received signal signal-to-noise ratio of each user within the coverage range of the first beam, count the number of users whose received signal signal-to-noise ratio within the coverage range of the first beam is lower than a preset signal-to-noise ratio threshold; Calculate the user proportion based on the number of users and the total number of users within the coverage range of the first beam.

11. The communication device according to claim 9, wherein, The determining, based on the location information, the user distribution information within the coverage range of the first beam includes: Project each user within the coverage range of the first beam onto the surface plane based on the location information, the pose information of the satellite, and the normal direction of the first beam pointing; Determine the user distribution information within the coverage range of the first beam based on the projected positions.

12. The communication device according to claim 9, wherein, If the distribution type is a centralized distribution, the user distribution information further includes: the central position and boundary information of the user centralized distribution range; the adjusting the first beam based on the user distribution information includes: Adjust the central pointing of the first beam to point to the central position; Adjust the width of the first beam based on the boundary information so that the adjusted first beam covers the concentrated distribution range of the users.

13. The communication device according to claim 9, wherein, After adjusting the first beam based on the user distribution information, the processor is further configured to: Receive a user access request carrying the location information of the user to be accessed; If the location information of the user to be accessed is within the initial coverage range of the first beam and outside the adjusted coverage range of the first beam, check whether there is a second beam that has established a bearer and covers the user to be accessed; If there is a second beam, allow the user to be accessed in the second beam.

14. The communication device according to claim 13, wherein, After checking whether there is a second beam that has established a bearer and covers the user to be accessed, the processor is further configured to: If there is no second beam, determine whether there is a third beam that has not established a bearer and covers the user to be accessed; If there is a third beam, establish a bearer for the third beam and allow the user to be accessed in the third beam.

15. The communication device according to claim 13, wherein, After determining whether there is a third beam that has not established a bearer and covers the user to be accessed, the processor is further configured to: If there is no third beam, readjust the first beam based on the location information of the user to be accessed and the location information of all users covered by the adjusted first beam, so that the readjusted first beam covers the user to be accessed and all users covered by the first beam before the readjustment; Allow the user to be accessed in the readjusted first beam.

16. A processor-readable storage medium, wherein, The processor-readable storage medium stores a program for causing the processor to execute the satellite beam adjustment method according to any one of claims 1 to 7.

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