CN117097393A - Satellite beam scheduling system and method - Google Patents

Satellite beam scheduling system and method Download PDF

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Publication number
CN117097393A
CN117097393A CN202311117957.XA CN202311117957A CN117097393A CN 117097393 A CN117097393 A CN 117097393A CN 202311117957 A CN202311117957 A CN 202311117957A CN 117097393 A CN117097393 A CN 117097393A
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wave
target
scheduling
wave position
spectrum
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戚少博
朱亮
闫晓亮
侯海洋
张世杰
高千峰
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Galaxyspace Beijing Technology Co ltd
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Galaxyspace Beijing Technology Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18513—Transmission in a satellite or space-based system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Radio Relay Systems (AREA)

Abstract

The embodiment of the specification provides a satellite beam scheduling system and a method, wherein the satellite beam scheduling system comprises a communication baseband, and generates a dynamic spectrum corresponding to a target wave position set according to a static spectrum carried in a beam scheduling request and a preset beam emission strategy and sends the dynamic spectrum to a beam scheduling module, wherein the static spectrum is used for determining the target wave position set; the wave beam scheduling module is used for carrying out time synchronization on the dynamic spectrum, obtaining a wave position scheduling spectrum according to a synchronization result, determining wave position information corresponding to a target wave position set according to a wave position coordinate spectrum corresponding to the target wave position set, generating target wave control information corresponding to the target wave position set according to the wave position information and the wave position scheduling spectrum, generating a wave control instruction set according to the target wave control information, and sending the wave control instruction set to the wave controller; and the wave controller is used for adjusting the phased array antenna of the target satellite based on the wave control instruction set so that the target satellite can communicate with the communication terminal corresponding to the target wave position set through the adjusted phased array antenna.

Description

Satellite beam scheduling system and method
Technical Field
The embodiment of the specification relates to the technical field of low-orbit satellite communication, in particular to a satellite beam scheduling system.
Background
With the continuous development of satellite communication technology, satellite communication is valued in the communication field in all countries of the world by the characteristics of wide coverage, strong mobility, large transmission capacity, flexible networking mode, no limitation of geographic conditions and the like. The current star-ground combined network has obvious advantages in bandwidth, power consumption, spectrum efficiency and the like, so that the current star-ground combined network gradually becomes a new research bright spot in the future communication field. However, the current satellite-ground combined network has insufficient capabilities in terms of sensing the position of the user, rapidly scheduling beams and the like, and cannot achieve rapid gaze of a ground fixed location or a specific terminal, so how to schedule beam resources on demand for satellites in the satellite-ground combined network provides better services for the user is a problem to be solved at present.
Disclosure of Invention
In view of this, the present embodiments provide a satellite beam scheduling system. One or more embodiments of the present disclosure relate to a satellite beam scheduling method, a satellite beam scheduling apparatus, a computing device, a computer readable storage medium, and a computer program, to solve the technical drawbacks of the prior art.
According to a first aspect of embodiments of the present specification, there is provided a satellite beam scheduling system, the system comprising a communication baseband, a beam scheduling module, a wave controller;
the communication baseband generates a dynamic spectrum corresponding to a target wave-position set according to a static spectrum carried in a wave-beam scheduling request and a preset wave-beam transmitting strategy and sends the dynamic spectrum to the wave-beam scheduling module, wherein the static spectrum is used for determining the target wave-position set;
the wave beam scheduling module is used for carrying out time synchronization on the dynamic spectrum, obtaining a wave position scheduling spectrum according to a synchronization result, determining wave position information corresponding to the target wave position set according to a wave position coordinate spectrum corresponding to the target wave position set, generating target wave control information corresponding to the target wave position set according to the wave position information and the wave position scheduling spectrum, generating a wave control instruction set according to the target wave control information and sending the wave control instruction set to the wave controller;
and the wave controller adjusts the phased array antenna of the target satellite based on the wave control instruction set so that the target satellite communicates with a communication terminal corresponding to the target wave position set through the adjusted phased array antenna.
According to a second aspect of embodiments of the present specification, there is provided a satellite beam scheduling method applied to a satellite beam scheduling system, the system including a communication baseband, a beam scheduling module, and a wave controller, the method including:
generating a dynamic spectrum corresponding to a target wave-position set according to a static spectrum carried in a wave-beam scheduling request and a preset wave-beam transmitting strategy by the communication baseband and sending the dynamic spectrum to the wave-beam scheduling module, wherein the static spectrum is used for determining the target wave-position set;
performing time synchronization on the dynamic spectrum through the beam scheduling module, obtaining a wave position scheduling spectrum according to a synchronization result, determining wave position information corresponding to the target wave position set according to a wave position coordinate spectrum corresponding to the target wave position set, generating target wave control information corresponding to the target wave position set according to the wave position information and the wave position scheduling spectrum, generating a wave control instruction set according to the target wave control information, and sending the wave control instruction set to the wave controller;
and adjusting a phased array antenna of a target satellite based on the wave control instruction set through the wave controller so that the target satellite communicates with a communication terminal corresponding to the target wave position set through the adjusted phased array antenna.
According to a third aspect of embodiments of the present specification, there is provided a satellite beam scheduling apparatus for use in a satellite beam scheduling system, the system including a communications baseband, a beam scheduling module, a wave controller, the apparatus comprising:
the first generation module is configured to generate a dynamic spectrum corresponding to a target wave position set through the communication baseband according to a static spectrum carried in a wave beam scheduling request and a preset wave beam emission strategy, and send the dynamic spectrum to the wave beam scheduling module, wherein the static spectrum is used for determining the target wave position set;
the second generation module is configured to perform time synchronization on the dynamic spectrum through the beam scheduling module, obtain a wave position scheduling spectrum according to a synchronization result, determine wave position information corresponding to the target wave position set according to the wave position coordinate spectrum corresponding to the target wave position set, generate target wave control information corresponding to the target wave position set according to the wave position information and the wave position scheduling spectrum, generate a wave control instruction set according to the target wave control information and send the wave control instruction set to the wave controller;
the adjustment module is configured to adjust the phased array antenna of the target satellite based on the wave control instruction set through the wave controller, so that the target satellite communicates with a communication terminal corresponding to the target wave position set through the adjusted phased array antenna.
According to a fourth aspect of embodiments of the present specification, there is provided a computing device comprising:
a memory and a processor;
the memory is configured to store computer-executable instructions that, when executed by the processor, perform the steps of the satellite beam scheduling method described above.
According to a fifth aspect of embodiments of the present specification, there is provided a computer readable storage medium storing computer executable instructions which, when executed by a processor, implement the steps of the satellite beam scheduling method described above.
According to a sixth aspect of embodiments of the present specification, there is provided a computer program, wherein the computer program, when executed in a computer, causes the computer to perform the steps of the satellite beam scheduling method described above.
The specification provides a satellite beam scheduling system, which comprises a communication baseband, a beam scheduling module and a wave controller; the communication baseband generates a dynamic spectrum corresponding to a target wave-position set according to a static spectrum carried in a wave-beam scheduling request and a preset wave-beam transmitting strategy and sends the dynamic spectrum to the wave-beam scheduling module, wherein the static spectrum is used for determining the target wave-position set; the wave beam scheduling module is used for carrying out time synchronization on the dynamic spectrum, obtaining a wave position scheduling spectrum according to a synchronization result, determining wave position information corresponding to the target wave position set according to a wave position coordinate spectrum corresponding to the target wave position set, generating target wave control information corresponding to the target wave position set according to the wave position information and the wave position scheduling spectrum, generating a wave control instruction set according to the target wave control information and sending the wave control instruction set to the wave controller; and the wave controller adjusts the phased array antenna of the target satellite based on the wave control instruction set so that the target satellite communicates with a communication terminal corresponding to the target wave position set through the adjusted phased array antenna.
According to the method and the device, the scheduling requirement is determined according to the static spectrum carried in the beam scheduling request through the communication baseband, the dynamic spectrum of the target wave position set is generated according to the static spectrum and the preset beam emission strategy, so that the coverage time of each target wave position can be determined according to the dynamic spectrum, after the dynamic spectrum is sent to the beam scheduling set through the communication baseband, the dynamic spectrum is time-synchronized by the beam scheduling set, the wave position scheduling spectrum is obtained, the actual coverage time of each target wave position can be determined according to the wave position scheduling spectrum, the target wave control information is generated and the wave control instruction set is generated through the wave position information and the wave position scheduling spectrum, the wave control instruction set is converted into the control information of the phased array antenna, and after the wave control instruction set is sent to the wave controller, the phased array antenna is subjected to angle adjustment according to the wave control instruction set, so that the satellite wave beam scheduling control is achieved, the purpose of scheduling of satellite wave beams according to the on-satellite wave beam resources is achieved, and better service is provided for users.
Drawings
Fig. 1 is a schematic view of a satellite beam scheduling system according to an embodiment of the present disclosure;
FIG. 2 is a flow chart of a satellite beam scheduling system provided in one embodiment of the present disclosure;
FIG. 3 is a process flow diagram of a satellite beam scheduling method according to one embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a satellite beam scheduling apparatus according to an embodiment of the present disclosure;
FIG. 5 is a block diagram of a computing device provided in one embodiment of the present description.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present description. This description may be embodied in many other forms than described herein and similarly generalized by those skilled in the art to whom this disclosure pertains without departing from the spirit of the disclosure and, therefore, this disclosure is not limited by the specific implementations disclosed below.
The terminology used in the one or more embodiments of the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the one or more embodiments of the specification. As used in this specification, one or more embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used in one or more embodiments of the present specification refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that, although the terms first, second, etc. may be used in one or more embodiments of this specification to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, a first may also be referred to as a second, and similarly, a second may also be referred to as a first, without departing from the scope of one or more embodiments of the present description. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.
Furthermore, it should be noted that, user information (including, but not limited to, user equipment information, user personal information, etc.) and data (including, but not limited to, data for analysis, stored data, presented data, etc.) according to one or more embodiments of the present disclosure are information and data authorized by a user or sufficiently authorized by each party, and the collection, use, and processing of relevant data is required to comply with relevant laws and regulations and standards of relevant countries and regions, and is provided with corresponding operation entries for the user to select authorization or denial.
First, terms related to one or more embodiments of the present specification will be explained.
And (3) satellite: the satellite is a device which is constructed by manpower and launched into space by space flight vehicles such as rockets, spaceship and the like, and surrounds the earth or other planets like a natural satellite.
Low orbit satellite system: generally, a large satellite system capable of performing real-time information processing is formed by a plurality of satellites, wherein the distribution of the satellites is called a satellite constellation. The low orbit satellite is mainly used for military target detection, and a high-resolution image of a target object is easily obtained by using the low orbit satellite. The low orbit satellite can also be used for mobile phone communication, and the low orbit height of the satellite ensures short transmission delay and small path loss. Communication systems composed of multiple satellites can realize true global coverage, and frequency reuse is more efficient. Cellular communication, multiple access, spot beam, frequency multiplexing, etc. also provide technical support for low orbit satellite mobile communications. The low orbit satellite constellation consists of a plurality of low orbit satellites in a plurality of orbits, and the constellation is continuously changed due to the fact that the low orbit satellites and the earth are asynchronous, and the relative positions of the low orbit satellites are also continuously changed.
At present, with the increase of satellite application services, satellites are required to be capable of timely carrying out data receiving and transmitting communication to terminals corresponding to different services, so that the satellites are required to have the capability of rapidly focusing on a ground fixed place or a specific terminal, beam scheduling is carried out according to user requirements, and better services are provided for users. However, no good technical solution is currently available to fulfill the above requirements.
Based on this, in the present specification, a satellite beam scheduling system is provided, and the present specification relates to a satellite beam scheduling method, a satellite beam scheduling apparatus, a computing device, and a computer-readable storage medium, which are described in detail in the following embodiments one by one.
Referring to fig. 1, fig. 1 is a schematic view of a scenario of a satellite beam scheduling system provided in an embodiment of the present disclosure, where a target satellite is a low-orbit satellite that needs to perform beam scheduling, and the target satellite includes a communication baseband, a beam scheduling module, a wave controller, and the like of the satellite beam scheduling system. And (3) through the static pattern of the communication baseband receiving gateway station, determining a target wave position set and a dynamic pattern corresponding to the target wave position set according to the static pattern and a preset wave beam emission strategy, namely determining the area required to be covered by the signal wave beam of the satellite according to the request of which areas uploaded by the gateway station need to emit the wave beam, and determining the residence time of the wave beam corresponding to each area in the area. The subsequent target satellite processes the dynamic spectrum through the beam scheduling module, converts beam scheduling information carried in the dynamic spectrum into a wave control instruction corresponding to the phased array antenna, and adjusts the antenna angle of the phased array antenna based on the wave control instruction through the wave controller, so that the beam is controlled according to the beam scheduling requirement, communication interaction with a communication terminal on the ground is accurately realized, and normal service experience of a target user is ensured.
Referring to fig. 2, fig. 2 shows a flowchart of a satellite beam scheduling system provided according to one embodiment of the present disclosure, the system including a communication baseband 202, a beam scheduling module 204, and a wave controller 206.
The communication baseband 202 generates a dynamic spectrum corresponding to a target wave-position set according to a static spectrum carried in a beam scheduling request and a preset beam transmitting strategy, and sends the dynamic spectrum to the beam scheduling module, wherein the static spectrum is used for determining the target wave-position set.
The communication baseband is understood to be a digital baseband on a low-orbit satellite for communication with a ground server. The communication baseband may include an RRC (Radio Resource Contro, radio resource control) layer, a MAC (MediaAccess Control, medium access control) layer, and a PHY (Physical, port Physical) layer. The RRC layer is used for communicating with a ground terminal or a server, such as communicating and interacting with a gateway station on the ground, and receiving a beam scheduling request uploaded by the gateway station. The MAC layer is used for managing and controlling data packet receiving and transmitting logic for the data link layer. The PHY layer, i.e., the port physical layer, is mainly responsible for coding, physical layer HARQ (Hybrid Automatic Repeat reQuest, automatic repeat request) processing, modulation, multi-antenna processing, mapping of signals on corresponding time-frequency resources, and the like. The beam scheduling request can be understood as a request that the ground terminal uploads to the satellite, and the beam scheduling request can be determined by the ground terminal according to service requirements, for example, the target service needs to transmit and receive data to and from the area a, so that the satellite needs to be controlled to cover the beam to the area a, and at the moment, a gateway station on the ground can send the beam scheduling request to the satellite so as to enable the satellite to control the beam to be scheduled to the area a. The static map carried in the beam scheduling request can be understood as a map containing ground wave position identifiers determined by the gateway station according to service requirements, and the static map uploaded to the satellite by the gateway station can enable the satellite to know that grids on the ground need to be covered, and the identifiers of each ground grid are numbers.
In practical application, the low-orbit constellation system is divided into a plurality of ground grids aiming at a ground area before running, so that the satellites of the low-orbit constellation system can conveniently schedule beams as required. After the static map is acquired, the satellite can determine the ground grid which needs to be covered at present and the corresponding identification information thereof, and can further determine which ground grid is specifically scheduled with the beam in the coverage area, so that the beam is scheduled according to the requirement.
In the implementation, after the satellite receives the static pattern of the gateway station, a dynamic pattern can be generated according to a preset beam emission strategy. The preset beam transmitting strategy is a satellite transmitting beam strategy which is set in advance and comprises wave position residence time and revisit period. The target wave position set can be understood as a set formed by all ground wave positions in the current coverage area of the satellite, namely, a set generated by combining all ground grids in fig. 1, and because the number of beams emitted by the satellite is small, generally only 16 wave positions in the coverage area of the satellite can be hundreds, after the target wave position set is determined according to the static map, a dynamic map corresponding to the target wave position set is also required to be generated according to a preset beam emission strategy. The dynamic spectrum can be understood as a static spectrum added with the beam emission time, and the dynamic spectrum includes identification information of each ground grid, namely a target wave position, and the time for each target wave position to allocate the beam, for example, the target wave position 1 is from 1 second to 2 seconds, and the target wave position 2 is from 2 seconds to 3 seconds. The information such as the beam transmitting time and the duration corresponding to each target wave position can be determined through the dynamic spectrum, and after the communication baseband sends the dynamic spectrum to the beam scheduling module, the beam scheduling module can perform time synchronization to calculate a corresponding wave control instruction set.
The beam scheduling module 204 performs time synchronization on the dynamic spectrum, obtains a wave position scheduling spectrum according to a synchronization result, determines wave position information corresponding to the target wave position set according to a wave position coordinate spectrum corresponding to the target wave position set, generates target wave control information corresponding to the target wave position set according to the wave position information and the wave position scheduling spectrum, generates a wave control instruction set according to the target wave control information, and sends the wave control instruction set to the wave controller.
The time synchronization of the dynamic spectrum may be understood as synchronizing the beam emission time, duration, etc. of each target wave position in the dynamic spectrum into actual time, that is, determining the start-stop time of each target wave position emission beam, for example, from 1 point 1 to 1 point 2 points, and after determining the beam emission start-stop time corresponding to each target wave position, generating the wave position scheduling spectrum. The wave position scheduling map stores identification information corresponding to each target wave position and the starting and ending time of wave beam emission. The wave position information can be understood as the position of each target wave position in the target wave position set, the wave position information can be obtained by calculation according to a wave position coordinate map, the wave position coordinate map is used for storing the coordinate information of each target wave position, the target wave control information corresponding to the target wave position set can be calculated according to the wave position information and the wave position scheduling map, namely the wave beam control information generated according to the current wave beam scheduling strategy for the target wave position set, so that the wave control instruction set for controlling the phased array antenna on the satellite can be generated according to the target wave control information, and the wave beam can be scheduled by adjusting the angle of the phased array antenna. After the wave control instruction set is sent to the wave controller, the wave controller can control the antenna angle of the phased array antenna according to the wave control instruction in the wave control instruction set, so that the wave position of satellite wave beam emission is adjusted, and the purpose of scheduling the satellite wave beam according to the requirement is achieved.
The wave controller 206 adjusts a phased array antenna of a target satellite based on the wave control instruction set, so that the target satellite communicates with a communication terminal corresponding to the target wave position set through the adjusted phased array antenna.
The wave controller can be understood as a module used for controlling the phased array antenna on the satellite, and the wave controller can adjust the antenna angle of the phased array antenna based on a plurality of wave control instructions in the wave control instruction set by sending the wave control instruction set to the wave controller, so that a target satellite can transmit wave beams to a target wave position in a target wave position set through the phased array antenna with the angle adjusted according to service requirements, and communication with a communication terminal in a ground wave position area is realized.
Further, in order to determine the beam transmitting time and the transmitting frequency of each target wave bit in the target wave bit set, it is necessary to determine, based on a preset beam transmitting policy, the wave bit residence time and the beam revisiting period, and use the wave bit residence time and the beam revisiting period as the preset beam transmitting policy.
The wave position residence time can be understood as the coverage time of a satellite for the wave position, namely the residence time of a beam emitted by the satellite in the wave position; a beam revisit period may be understood as a period of how long the satellite has re-covered the wave-position, such as after the satellite no longer transmits a beam to the wave-position from the current time, the wave-position is covered again after the beam revisit period.
In practical application, the wave-position residence time and the beam revisit period can be determined according to the actual service requirement, and after the wave-position residence time and the beam revisit period are determined, the wave-position residence time and the beam revisit period can be used as a preset beam emission strategy for beam scheduling of a subsequent satellite in a target wave-position set.
In a specific embodiment of the present disclosure, if the wave-position residence time is determined to be 2 seconds and the beam revisit period is determined to be 60 seconds, the determined wave-position residence time and the beam revisit period are used as a preset beam emission strategy.
Based on the information, the wave position residence time and the wave beam revisit period are used as a preset wave beam emission strategy, and then the information such as wave beam duration, frequency and the like corresponding to each target wave position in the target wave position set can be determined by combining the static map.
Further, in order to determine the beam emission information of each target wave bit in the target wave bit set, wave bit time setting is required to be performed on the static spectrum according to a preset beam emission strategy, specifically, the communication baseband performs wave bit time setting on the static spectrum according to the wave bit residence time and the beam revisit period, and a dynamic spectrum corresponding to the target wave bit set is generated according to a setting result.
The static map stores identification information corresponding to each ground area, each ground area is a wave position, after the wave position residence time and the beam revisit period are determined, wave position time setting can be performed on the static map based on the wave position residence time and the beam revisit period, wave position time setting can be understood as determining the beam duration and the period setting corresponding to each wave position, and after setting is completed, the dynamic map added with the beam frame length can be obtained.
In practical application, the time arrangement can be performed according to the wave position residence time, the static map and the beam revisit period, the beam time information corresponding to each target wave position is determined, and the dynamic map can be obtained according to the arrangement result, wherein the dynamic map comprises the identification information of each wave position and the beam frame time information corresponding to each wave position.
In a specific embodiment of the present disclosure, time arrangement is performed on each target wave bit included in the static map according to the wave bit residence time and the beam revisit period, wave bit frame time information corresponding to each target wave bit is determined, and a dynamic map corresponding to the target wave bit set is generated according to the arrangement result.
Furthermore, in order to accurately time-arrange the corresponding target wave bits in the static spectrum, it is necessary to set the wave beam time of the target wave bits according to the wave bit residence time and the wave beam revisit period, specifically, the communication baseband determines the wave beam setting time corresponding to each target wave bit in the target wave bit set according to the wave bit residence time and the wave beam revisit period, and generates the dynamic spectrum according to the wave beam setting time corresponding to each target wave bit.
The beam setting time may be understood as beam frame time information corresponding to each target wave bit, that is, a beam frame length corresponding to each target wave bit is set. After the beam setting time corresponding to each target wave position is determined, a dynamic map containing the beam setting time corresponding to each target wave position can be generated.
In a specific embodiment of the present disclosure, the beam time setting is performed on the target beam according to the beam dwell time and the beam revisit period, and the beam setting time corresponding to each target beam is determined, for example, "target beam 1: frame length 2 seconds, period 60 seconds", so as to generate a dynamic map according to the beam setting time corresponding to each target beam.
Further, in order to enable the satellite to transmit a beam to each target wave bit in the target wave bit set according to service requirements, time synchronization needs to be performed on beam setting time of the target wave bit, specifically, the beam scheduling module performs time synchronization on beam setting time corresponding to each target wave bit in the dynamic spectrum, determines beam scheduling time corresponding to each target wave bit, and generates the wave bit scheduling spectrum according to the beam scheduling time corresponding to each target wave bit.
The time synchronization of the beam setting time corresponding to each target wave bit may be understood as converting the beam setting time into a standard time of the satellite system, for example, the beam setting time of the target wave bit 1 is from 1 second to 2 seconds, the period is 60 seconds, the beam setting time of the target wave bit 2 is from 3 seconds to 4 seconds, the period is 60 seconds, after the time synchronization, the beam setting time of the target wave bit 1 may be converted into a beam scheduling time, the beam scheduling time is 1:30:01-1:30:02, the period is 60 seconds, and the beam scheduling time of the target wave bit 2 is 1:30:03-1:30:04, and the period is 60 seconds.
In practical application, the frame time, that is, the actual time, can be obtained from the clock circuit of the satellite, the frame time is utilized to perform time synchronization calculation, the beam setting time corresponding to each target wave bit is subjected to time synchronization, and the beam actual scheduling time of each target wave bit is determined, so that a wave bit scheduling map is generated, and the identification information of each target wave bit and the corresponding beam transmitting start-stop time are stored in the wave bit scheduling map.
In a specific embodiment of the present disclosure, the beam setting time of each target wave position in the dynamic spectrum is time-synchronized, and the beam scheduling time corresponding to each target wave position is determined, for example, the beam setting time of the target wave position 1 is "S (duration) =2s, T (period) =60deg.s", and after the time synchronization, the beam scheduling time of the target wave position 1 is "s=2: 00:01-2:00:02, t=60deg.s".
Further, in order to enable the satellite to accurately transmit the beam to the target wave positions, a specific position of each target wave position needs to be determined, the wave position coordinate map corresponding to the target wave position set is determined by the specific wave beam scheduling module, the wave position coordinate corresponding to each target wave position in the target wave position set is determined according to the wave position coordinate map, and wave position information corresponding to the target wave position set is calculated according to each wave position coordinate.
The wave position coordinate map can be understood as a map storing coordinate information of each target wave position, wave position coordinates of each target wave position in the target wave position set can be determined according to the wave position coordinate map, and wave position information corresponding to each target wave position in the target wave position set can be calculated according to each wave position coordinate. The wave position information can be understood as the longitude and latitude height information of each target wave position, and because each target wave position corresponds to an actual ground area, the longitude and latitude height information of the ground area needs to be determined, and then the satellite can be ensured to accurately transmit the wave beam to the area.
In practical application, after the wave position coordinates corresponding to each target wave position are determined according to the wave position coordinate map, the wave position coordinates can be converted into longitude and latitude height information by utilizing a protocol conversion algorithm, so that each target wave position corresponds to one longitude and latitude height information.
In a specific embodiment of the present disclosure, a wave position coordinate map corresponding to a target wave position set is obtained, so that wave position coordinates (x, y, z) corresponding to each target wave position in the target wave position set are determined based on the wave position coordinate map, and protocol conversion is performed on the wave position coordinates corresponding to each target wave position to obtain Longitude and Latitude heights (Lng, longitude), lat (latitudes), H (High)).
Further, the beam scheduling module generates a pre-scheduling map according to the wave position information and the wave position scheduling map, and calculates target wave control information corresponding to the target wave position set based on the pre-scheduling map.
The pre-scheduling map may be understood as a map storing the longitude and latitude information of the wave positions corresponding to each target wave position, and the pre-scheduling map further includes the scheduling time of each target wave position, so that the pre-scheduling map may be generated according to the wave position information, that is, the longitude and latitude information corresponding to the wave position and the wave position scheduling map. And then the actual position of each target wave position and the actual time of beam emission can be known according to the pre-scheduling map, so that the target wave control information is calculated, and the target wave control information is the control angle information of the satellite antenna.
In a specific embodiment of the present disclosure, a pre-scheduling map is calculated according to the wave position information and the wave position scheduling map, and target wave control information such as an azimuth angle, a pitch angle, and the like of the satellite antenna is calculated according to the pre-scheduling map.
Further, in order to convert longitude and latitude information of each target wave position in the pre-scheduling map into angle information of a satellite antenna, discrete calculation is needed to be performed on the pre-scheduling map, specifically, the beam scheduling module performs discrete calculation on the pre-scheduling map to obtain a pre-scheduling vector, determines ephemeris information of the target satellite, calculates a pre-scheduling vector based on the pre-scheduling vector and the ephemeris information, and generates target wave control information corresponding to the target wave position set according to the pre-scheduling vector.
Wherein, discrete computation of the pre-scheduling pattern may be understood as converting information stored in the pre-scheduling pattern into vectors, so that after discrete computation of the pre-scheduling pattern, pre-scheduling vectors may be obtained. Ephemeris information can be understood as position information of a target satellite relative to the ground, and since the target satellite is moving, the ephemeris information is continuously updated, and the position of the current target satellite can be determined according to the ephemeris information. And then, according to the pre-scheduling vector and the ephemeris information, a pre-wave control vector can be calculated, the pre-wave control vector can be understood as an angle vector of the phased array antenna, and according to the pre-wave control vector, target wave control information corresponding to the target wave position set is generated.
In practical application, after determining the prescheduling vector and the ephemeris of the target satellite, protocol conversion may be performed to convert longitude and latitude information of the target wave position into angle information of the satellite antenna, so as to generate a prescheduling vector, where the prescheduling vector is used to represent angle vectors, such as azimuth angle vector, elevation angle vector, and the like, of the satellite antenna.
In a specific embodiment of the present disclosure, discrete calculation is performed on a pre-scheduling map to obtain a pre-scheduling vector, a ephemeris of a target satellite is determined, protocol conversion is performed according to the pre-scheduling vector and the ephemeris, the pre-scheduling vector is converted into a pre-wave control vector, and target wave control information of a target wave position set is generated according to the pre-wave control vector.
Furthermore, in order to avoid transmission delay caused by acquiring a static map and calculating wave control information, and ensure that a target satellite can accurately and timely perform wave beam scheduling on a target wave bit, time compensation is required to be performed on target wave control, and the wave beam scheduling module specifically acquires the transmission delay information, performs time compensation on the target wave control information based on the transmission delay information, and generates a wave control instruction set according to the time compensated target wave control information.
The transmission delay information can be understood as time error information caused by the time error information, and the target wave control information is subjected to time compensation according to the transmission delay information, so that the target wave control information can be accurately aligned with satellite system time, the follow-up wave control information is ensured to be sent to the wave controller at correct time, after the time compensation is carried out, a wave control instruction set can be generated based on the compensated target wave control information, and an actual control instruction for the phased array antenna is stored in the wave control instruction set, so that the wave controller adjusts the antenna angle of the phased array antenna based on the wave control instruction set.
In a specific embodiment of the present disclosure, transmission delay information is obtained, time compensation is performed on target wave control information based on the transmission delay information, and a wave control instruction set is generated according to target wave control washing after the time compensation, where the wave control instruction set includes angle control instructions of the phased array antenna during transmission and reception.
Furthermore, after the antenna angle is accurately adjusted, in order to ensure that the data packet can be timely transmitted to the ground terminal, the beam scheduling map is required to be sent to a data transmission module, and the system specifically further comprises the data transmission module; the wave beam scheduling module sends the wave position scheduling map to the data transmission module; and the data transmission module is used for carrying out data transmission with the communication terminal through the phased array antenna according to the wave position scheduling map.
The data transmission module can be understood as a mac layer in a communication baseband, and after the wave position scheduling map is sent back to the mac layer, consistency of data packet receiving and sending and phased array antenna phase direction can be achieved, so that when a target satellite adjusts the phased array antenna to a target wave position, the data packet of the target wave position can be sent to a ground communication terminal corresponding to the target wave position.
Further, the static map is used for storing wave position identification information corresponding to the target wave position set, the dynamic map is used for storing wave position identification information and wave position time information corresponding to the target wave position set, and the wave position scheduling map is used for storing wave position identification information and wave position scheduling information corresponding to the target wave position set.
The static map is used for storing wave position identification information of a target wave position, the wave position identification information can be an area number or a wave position number of a ground area, the dynamic map is used for storing wave position identification information and wave position time information, the wave position time information is wave position emission frame time information, the wave position scheduling map is used for storing wave position identification information and wave position scheduling information, and the wave position scheduling information is wave beam actual emission time and wave position period information of the target wave position.
The application provides a satellite wave beam scheduling system, which comprises a communication baseband, a wave beam scheduling module and a wave controller, wherein the wave beam scheduling module is used for receiving a signal transmitted by a satellite; the communication baseband generates a dynamic spectrum corresponding to a target wave-position set according to a static spectrum carried in a wave-beam scheduling request and a preset wave-beam transmitting strategy and sends the dynamic spectrum to the wave-beam scheduling module, wherein the static spectrum is used for determining the target wave-position set; the wave beam scheduling module is used for carrying out time synchronization on the dynamic spectrum, obtaining a wave position scheduling spectrum according to a synchronization result, determining wave position information corresponding to the target wave position set according to a wave position coordinate spectrum corresponding to the target wave position set, generating target wave control information corresponding to the target wave position set according to the wave position information and the wave position scheduling spectrum, generating a wave control instruction set according to the target wave control information and sending the wave control instruction set to the wave controller; and the wave controller adjusts the phased array antenna of the target satellite based on the wave control instruction set so that the target satellite communicates with a communication terminal corresponding to the target wave position set through the adjusted phased array antenna. The communication baseband determines the scheduling requirement according to the static spectrum carried in the beam scheduling request, and generates the dynamic spectrum of the target wave position set according to the static spectrum and the preset beam emission strategy, so that the coverage time of each target wave position can be determined according to the dynamic spectrum, after the communication baseband sends the dynamic spectrum to the beam scheduling set, the beam scheduling set carries out time synchronization on the dynamic spectrum to obtain the wave position scheduling spectrum, so that the actual coverage time of each target wave position can be determined according to the wave position scheduling spectrum, the target wave control information is generated and the wave control instruction set is generated through the wave position information and the wave position scheduling spectrum, the control information of the wave control information is converted to the phased array antenna, and after the wave control instruction set is sent to the wave controller, the wave controller can carry out angle adjustment on the phased array antenna according to the wave control instruction set, so that the satellite wave beam scheduling control is realized, the purpose of on-satellite wave beam scheduling according to the requirement of service wave beam resources is achieved, and the effect of providing better service for users is achieved.
Referring to fig. 3, fig. 3 shows a process flow chart of a satellite beam scheduling method according to an embodiment of the present disclosure, where the method is applied to a satellite beam scheduling system, and the system includes a communication baseband, a beam scheduling module, and a wave controller, and specifically includes the following steps.
Step 302: and generating a dynamic spectrum corresponding to a target wave-position set by the communication baseband according to a static spectrum carried in a wave-beam scheduling request and a preset wave-beam transmitting strategy, and sending the dynamic spectrum to the wave-beam scheduling module, wherein the static spectrum is used for determining the target wave-position set.
Step 304: and carrying out time synchronization on the dynamic spectrum through the beam scheduling module, obtaining a wave position scheduling spectrum according to a synchronization result, determining wave position information corresponding to the target wave position set according to a wave position coordinate spectrum corresponding to the target wave position set, generating target wave control information corresponding to the target wave position set according to the wave position information and the wave position scheduling spectrum, generating a wave control instruction set according to the target wave control information, and sending the wave control instruction set to the wave controller.
Step 306: and adjusting a phased array antenna of a target satellite based on the wave control instruction set through the wave controller so that the target satellite communicates with a communication terminal corresponding to the target wave position set through the adjusted phased array antenna.
The above is an exemplary scheme of a satellite beam scheduling method of this embodiment. It should be noted that, the technical solution of the satellite beam scheduling method and the technical solution of the satellite beam scheduling system belong to the same conception, and details of the technical solution of the satellite beam scheduling method which are not described in detail can be referred to the description of the technical solution of the satellite beam scheduling system.
Corresponding to the method embodiment, the present disclosure further provides an embodiment of a satellite beam scheduling device, and fig. 4 shows a schematic structural diagram of the satellite beam scheduling device provided in one embodiment of the present disclosure.
As shown in fig. 4, the apparatus includes:
a first generation module 402 configured to generate, by using the communication baseband, a dynamic spectrum corresponding to a target wave-position set according to a static spectrum carried in a beam scheduling request and a preset beam transmission policy, and send the dynamic spectrum to the beam scheduling module, where the static spectrum is used to determine the target wave-position set
The second generating module 404 is configured to perform time synchronization on the dynamic spectrum through the beam scheduling module, obtain a wave position scheduling spectrum according to a synchronization result, determine wave position information corresponding to the target wave position set according to a wave position coordinate spectrum corresponding to the target wave position set, generate target wave control information corresponding to the target wave position set according to the wave position information and the wave position scheduling spectrum, generate a wave control instruction set according to the target wave control information, and send the wave control instruction set to the wave controller;
And the adjusting module 406 is configured to adjust, by the wave controller, the phased array antenna of the target satellite based on the wave control instruction set, so that the target satellite communicates with a communication terminal corresponding to the target wave position set through the phased array antenna after adjustment.
The above is an exemplary scheme of a satellite beam scheduling apparatus of the present embodiment. It should be noted that, the technical solution of the satellite beam scheduling device and the technical solution of the satellite beam scheduling method and system belong to the same conception, and details of the technical solution of the satellite beam scheduling device, which are not described in detail, can be referred to the description of the technical solution of the satellite beam scheduling method and system.
Fig. 5 illustrates a block diagram of a computing device 500 provided in accordance with one embodiment of the present description. The components of the computing device 500 include, but are not limited to, a memory 510 and a processor 520. Processor 520 is coupled to memory 510 via bus 530 and database 550 is used to hold data.
Computing device 500 also includes access device 540, access device 540 enabling computing device 500 to communicate via one or more networks 560. Examples of such networks include public switched telephone networks (PSTN, public Switched Telephone Network), local area networks (LAN, localAreaNetwork), wide area networks (WAN, wideAreaNetwork), personal area networks (PAN, personalAreaNetwork), or combinations of communication networks such as the internet. The access device 540 may include one or more of any type of network interface, wired or wireless, such as a network interface card (NIC, network interface controller), such as an IEEE802.11 wireless local area network (WLAN, wireless LocalAreaNetwork) wireless interface, a worldwide interoperability for microwave access (Wi-MAX, worldwide Interoperability for Microwave Access) interface, an ethernet interface, a universal serial bus (USB, universal Serial Bus) interface, a cellular network interface, a bluetooth interface, a Near Field Communication (NFC).
In one embodiment of the present description, the above-described components of computing device 500, as well as other components not shown in FIG. 5, may also be connected to each other, such as by a bus. It should be understood that the block diagram of the computing device shown in FIG. 5 is for exemplary purposes only and is not intended to limit the scope of the present description. Those skilled in the art may add or replace other components as desired.
Computing device 500 may be any type of stationary or mobile computing device, including a mobile computer or mobile computing device (e.g., tablet, personal digital assistant, laptop, notebook, netbook, etc.), mobile phone (e.g., smart phone), wearable computing device (e.g., smart watch, smart glasses, etc.), or other type of mobile device, or a stationary computing device such as a desktop computer or personal computer (PC, personal Computer). Computing device 500 may also be a mobile or stationary server.
Wherein the processor 520 is configured to execute computer-executable instructions that, when executed by the processor, perform the steps of the satellite beam scheduling method described above.
The foregoing is a schematic illustration of a computing device of this embodiment. It should be noted that, the technical solution of the computing device and the technical solution of the satellite beam scheduling method belong to the same concept, and details of the technical solution of the computing device, which are not described in detail, can be referred to the description of the technical solution of the satellite beam scheduling method.
An embodiment of the present disclosure also provides a computer-readable storage medium storing computer-executable instructions that, when executed by a processor, implement the steps of the satellite beam scheduling method described above.
The above is an exemplary version of a computer-readable storage medium of the present embodiment. It should be noted that, the technical solution of the storage medium and the technical solution of the satellite beam scheduling method described above belong to the same concept, and details of the technical solution of the storage medium which are not described in detail can be referred to the description of the technical solution of the satellite beam scheduling method described above.
An embodiment of the present disclosure further provides a computer program, where the computer program, when executed in a computer, causes the computer to perform the steps of the satellite beam scheduling method described above.
The above is an exemplary version of a computer program of the present embodiment. It should be noted that, the technical solution of the computer program and the technical solution of the satellite beam scheduling method belong to the same conception, and details of the technical solution of the computer program, which are not described in detail, can be referred to the description of the technical solution of the satellite beam scheduling method.
The foregoing describes specific embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
The computer instructions include computer program code that may be in source code form, object code form, executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-only Memory (ROM), a random access Memory (RAM, randomAccess Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the content of the computer readable medium can be increased or decreased appropriately according to the requirements of the patent practice, for example, in some areas, according to the patent practice, the computer readable medium does not include an electric carrier signal and a telecommunication signal.
It should be noted that, for simplicity of description, the foregoing method embodiments are all expressed as a series of combinations of actions, but it should be understood by those skilled in the art that the embodiments are not limited by the order of actions described, as some steps may be performed in other order or simultaneously according to the embodiments of the present disclosure. Further, those skilled in the art will appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily all required for the embodiments described in the specification.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.
The preferred embodiments of the present specification disclosed above are merely used to help clarify the present specification. Alternative embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the teaching of the embodiments. The embodiments were chosen and described in order to best explain the principles of the embodiments and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. This specification is to be limited only by the claims and the full scope and equivalents thereof.

Claims (15)

1. A satellite wave beam dispatching system, which is characterized by comprising a communication baseband, a wave beam dispatching module and a wave controller;
the communication baseband generates a dynamic spectrum corresponding to a target wave-position set according to a static spectrum carried in a wave-beam scheduling request and a preset wave-beam transmitting strategy and sends the dynamic spectrum to the wave-beam scheduling module, wherein the static spectrum is used for determining the target wave-position set;
the wave beam scheduling module is used for carrying out time synchronization on the dynamic spectrum, obtaining a wave position scheduling spectrum according to a synchronization result, determining wave position information corresponding to the target wave position set according to a wave position coordinate spectrum corresponding to the target wave position set, generating target wave control information corresponding to the target wave position set according to the wave position information and the wave position scheduling spectrum, generating a wave control instruction set according to the target wave control information and sending the wave control instruction set to the wave controller;
and the wave controller adjusts the phased array antenna of the target satellite based on the wave control instruction set so that the target satellite communicates with a communication terminal corresponding to the target wave position set through the adjusted phased array antenna.
2. The system of claim 1 wherein the communication baseband determines a wave-position dwell time and a beam revisit period and uses the wave-position dwell time and the beam revisit period as a preset beam transmission strategy.
3. The system of claim 2, wherein the communication baseband performs a wave-level time setting on the static spectrum according to the wave-level residence time and the beam revisit period, and generates a dynamic spectrum corresponding to the target wave-level set according to a setting result.
4. The system of claim 3 wherein the communication baseband determines a beam set time corresponding to each target bin in the target bin set according to the bin residence time and the beam revisit period, and generates the dynamic map according to the beam set time corresponding to each target bin.
5. The system of claim 4, wherein the beam scheduling module performs time synchronization on beam set times corresponding to each target wave position in the dynamic spectrum, determines beam scheduling times corresponding to each target wave position, and generates the wave position scheduling spectrum according to the beam scheduling times corresponding to each target wave position.
6. The system of claim 1, wherein the beam scheduling module determines a wave position coordinate map corresponding to the target wave position set, determines wave position coordinates corresponding to each target wave position in the target wave position set according to the wave position coordinate map, and calculates wave position information corresponding to the target wave position set according to each wave position coordinate.
7. The system of claim 1, wherein the beam scheduling module generates a pre-scheduling map according to the wave position information and the wave position scheduling map, and calculates target wave control information corresponding to the target wave position set based on the pre-scheduling map, wherein the pre-scheduling map is used for storing wave position longitude and latitude information corresponding to the target wave position set.
8. The system of claim 7, wherein the beam scheduling module performs discrete computation on the pre-scheduling map to obtain a pre-scheduling vector, determines ephemeris information for the target satellite, calculates a pre-gating vector based on the pre-scheduling vector and the ephemeris information, and generates target gating information corresponding to the target set of wave positions according to the pre-gating vector.
9. The system of claim 1, wherein the beam scheduling module obtains transmission delay information, time compensates the target wave control information based on the transmission delay information, and generates the wave control instruction set according to the time compensated target wave control information.
10. The system according to any one of claims 1 to 9, wherein the static map is configured to store wave position identification information corresponding to the target wave position set, the dynamic map is configured to store wave position identification information and wave position time information corresponding to the target wave position set, and the wave position scheduling map is configured to store wave position scheduling information corresponding to the wave position identification information and the target wave position set.
11. The system according to any one of claims 1-9, wherein the system further comprises a data transmission module;
the wave beam scheduling module sends the wave position scheduling map to the data transmission module;
and the data transmission module is used for carrying out data transmission with the communication terminal through the phased array antenna according to the wave position scheduling map.
12. A satellite beam scheduling method, applied to a satellite beam scheduling system, the system comprising a communication baseband, a beam scheduling module, and a wave controller, the method comprising:
generating a dynamic spectrum corresponding to a target wave-position set according to a static spectrum carried in a wave-beam scheduling request and a preset wave-beam transmitting strategy by the communication baseband and sending the dynamic spectrum to the wave-beam scheduling module, wherein the static spectrum is used for determining the target wave-position set;
performing time synchronization on the dynamic spectrum through the beam scheduling module, obtaining a wave position scheduling spectrum according to a synchronization result, determining wave position information corresponding to the target wave position set according to a wave position coordinate spectrum corresponding to the target wave position set, generating target wave control information corresponding to the target wave position set according to the wave position information and the wave position scheduling spectrum, generating a wave control instruction set according to the target wave control information, and sending the wave control instruction set to the wave controller;
And adjusting a phased array antenna of a target satellite based on the wave control instruction set through the wave controller so that the target satellite communicates with a communication terminal corresponding to the target wave position set through the adjusted phased array antenna.
13. A satellite beam scheduling apparatus for use in a satellite beam scheduling system, the system comprising a communications baseband, a beam scheduling module, and a wave controller, the apparatus comprising:
the first generation module is configured to generate a dynamic spectrum corresponding to a target wave position set through the communication baseband according to a static spectrum carried in a wave beam scheduling request and a preset wave beam emission strategy, and send the dynamic spectrum to the wave beam scheduling module, wherein the static spectrum is used for determining the target wave position set;
the second generation module is configured to perform time synchronization on the dynamic spectrum through the beam scheduling module, obtain a wave position scheduling spectrum according to a synchronization result, determine wave position information corresponding to the target wave position set according to the wave position coordinate spectrum corresponding to the target wave position set, generate target wave control information corresponding to the target wave position set according to the wave position information and the wave position scheduling spectrum, generate a wave control instruction set according to the target wave control information and send the wave control instruction set to the wave controller;
The adjustment module is configured to adjust the phased array antenna of the target satellite based on the wave control instruction set through the wave controller, so that the target satellite communicates with a communication terminal corresponding to the target wave position set through the adjusted phased array antenna.
14. A computing device, comprising:
a memory and a processor;
the memory is configured to store computer-executable instructions that, when executed by the processor, perform the steps of the method of claim 12.
15. A computer readable storage medium, characterized in that it stores computer executable instructions which, when executed by a processor, implement the steps of the method of claim 12.
CN202311117957.XA 2023-08-31 2023-08-31 Satellite beam scheduling system and method Pending CN117097393A (en)

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