CN116527107B - Scheduling method and device for static orbit satellite phased array uplink wave beam - Google Patents

Scheduling method and device for static orbit satellite phased array uplink wave beam Download PDF

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CN116527107B
CN116527107B CN202310462684.6A CN202310462684A CN116527107B CN 116527107 B CN116527107 B CN 116527107B CN 202310462684 A CN202310462684 A CN 202310462684A CN 116527107 B CN116527107 B CN 116527107B
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uplink
short message
phased array
orbit satellite
target
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CN116527107A (en
Inventor
姬涛
俞道滨
郭磊
蒋振伟
李志涛
赵斌
韩磊
罗又天
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32039 Unit Of Chinese Pla
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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
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • 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
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • 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
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention provides a scheduling method and a device for an uplink wave beam of a static orbit satellite phased array, which relate to the technical field of spacecraft measurement and control and comprise the following steps: receiving an uplink short message and the requirement information of the uplink short message, determining a target stationary orbit satellite phased array uplink beam for sending the uplink short message based on a preset beam allocation rule and sending the uplink short message to a user target based on the target stationary orbit satellite phased array uplink beam under the condition that the requirement information is legal, the user target and at least one stationary orbit satellite phased array uplink beam are determined to be visible in two directions and the transmission timeliness requirement of the uplink short message is met. Based on the method, the ground control center can finish efficient unified scheduling on the uplink wave beams of the stationary orbit satellite phased array, realize quick real-time instruction uplink of a large-scale low orbit spacecraft, solve the contradiction between the small quantity of the uplink wave beams and the large quantity of simultaneous service targets, and effectively improve the use efficiency of the uplink wave beams of the stationary orbit satellite phased array.

Description

Scheduling method and device for static orbit satellite phased array uplink wave beam
Technical Field
The invention relates to the technical field of spacecraft measurement and control, in particular to a scheduling method and device for a phased array uplink beam of a static orbit satellite.
Background
The existing static orbit satellite phased array uplink beam is driven by a ground plan, a user center initiates a static orbit satellite resource use application aiming at a certain low orbit spacecraft in advance, a transport control center receives and generates a corresponding resource use plan, the user center builds a link with the corresponding low orbit spacecraft in the resource use plan window, and uplink measurement and control instructions are uploaded. With the continuous increase of the number of low orbit spacecrafts and the limited number of the uplink beams of the static orbit satellite phased array, the use requirement of the user center on the static orbit satellite resources is increased, the uplink measurement and control requirement of the low orbit spacecrafts can not be met by a mode of making a static orbit satellite resource plan in advance, and the use efficiency of the static orbit satellite resources is lower.
Disclosure of Invention
The invention aims to provide a scheduling method and device for a phased array uplink beam of a stationary orbit satellite, which solve the contradiction between the small number of uplink beams and the large number of simultaneous service targets and improve the service efficiency of the phased array uplink beam of the stationary orbit satellite.
In a first aspect, the present invention provides a method for scheduling an uplink beam of a phased array of a stationary orbiting satellite, which is applied to a ground control center, including: receiving an uplink short message and demand information of the uplink short message; wherein the demand information includes: priority, transmission age requirement, data length, identity of a user target and location of the user target; judging the validity of the demand information, the bidirectional visibility of the user target and at least one static orbit satellite phased array uplink beam and the transmission timeliness of the uplink short message; under the conditions that the demand information is legal, the user target and at least one stationary orbit satellite phased array uplink beam are bidirectionally visible and the transmission timeliness requirement of the uplink short message is met, determining a target stationary orbit satellite phased array uplink beam for transmitting the uplink short message based on a preset beam distribution rule; and storing the uplink short message into a queue of the target stationary orbit satellite phased array uplink beam, and sending the uplink short message to the user target based on the target stationary orbit satellite phased array uplink beam when the uplink short message is the first short message sequenced in the queue.
In an alternative embodiment, determining validity of the requirement information, bidirectional visibility of the user target and at least one stationary orbit satellite phased array uplink beam, and transmission timeliness of the uplink short message includes: judging whether the format of the demand information exceeds a preset legal data range or not; if yes, determining that the demand information is illegal, and feeding back the information for refusing the transmission of the uplink short message to the sender of the uplink short message; if not, determining that the demand information is legal, and judging whether at least one uplink beam exists in all the uplink beams of the stationary orbit satellite phased array and the user target have bidirectional visible conditions; wherein the bi-directional visual condition includes one of: direct visualization, back visualization of the adjusted beam direction, and visualization after waiting for a preset period of time; if not, feeding back the information refused to be sent by the uplink short message to the sender of the uplink short message; if yes, acquiring available time windows of all uplink beams of the stationary orbit satellite phased array; judging whether the estimated time for sending the uplink short message is not later than the time required by the transmission aging based on the available time window; if not, feeding back the information refused to be sent by the uplink short message to the sender of the uplink short message; if yes, determining that the transmission aging requirement of the uplink short message is met.
In an alternative embodiment, the preset beam allocation rule includes: judging whether a sender of the uplink short message designates a sending beam of the uplink short message; if yes, and under the condition that the sending beam is determined to be available, the sending beam is used as the target stationary orbit satellite phased array uplink beam; if not, judging whether a beam directly visible with the user target exists or not; if so, selecting the target stationary orbit satellite phased array uplink wave beam from the directly visible wave beams; if not, judging whether idle beams exist in all the uplink beams of the stationary orbit satellite phased array; if the idle beam exists, selecting a target stationary orbit satellite phased array uplink beam from the idle beam; and if the idle beam does not exist, the uplink beam with the shortest message queue selected from all the uplink beams of the phased array of the stationary orbit satellite is used as the uplink beam of the phased array of the target stationary orbit satellite.
In an alternative embodiment, after determining the target stationary orbit satellite phased array uplink beam for transmitting the uplink short message based on a preset beam allocation rule, the method further includes: determining the sending sequence of the uplink short message in a message queue of the target stationary orbit satellite phased array uplink beam based on the priority of the uplink short message; judging whether the beam directions corresponding to all messages sequenced before the uplink short message are consistent with the beam directions corresponding to the uplink short message or not in the current sending window of the target stationary orbit satellite phased array uplink beam; if the beam directions of the uplink beams of the target stationary orbit satellite phased array are inconsistent, the uplink short message is sent to a ground station under the condition that the beam directions of the uplink beams of the target stationary orbit satellite phased array are consistent with the beam directions corresponding to the uplink short message and the beam directions are not adjusted until the uplink short message is sent, so that the ground station sends the uplink short message to the user target based on the target stationary orbit satellite phased array uplink beams; and if the uplink short messages are consistent, the uplink short messages are sent to the ground station.
In an alternative embodiment, after the uplink short message is sent to the user target based on the target stationary orbit satellite phased array uplink beam, the method further includes: and feeding back the sent state of the uplink short message to the sender of the uplink short message.
In a second aspect, the present invention provides a scheduling device for a phased array uplink beam of a stationary orbit satellite, which is applied to a ground management and control center, and includes: the receiving module is used for receiving the uplink short message and the requirement information of the uplink short message; wherein the demand information includes: priority, transmission age requirement, data length, identity of a user target and location of the user target; the judging module is used for judging the legality of the demand information, the bidirectional visibility of the user target and at least one static orbit satellite phased array uplink beam and the transmission timeliness of the uplink short message; the determining module is used for determining a target stationary orbit satellite phased array uplink beam for sending the uplink short message based on a preset beam distribution rule under the conditions that the demand information is legal, the user target and at least one stationary orbit satellite phased array uplink beam are visible in two directions and the transmission timeliness requirement of the uplink short message is met; and the storage and transmission module is used for storing the uplink short message into a queue of the target stationary orbit satellite phased array uplink beam, and transmitting the uplink short message to the user target based on the target stationary orbit satellite phased array uplink beam when the uplink short message is the first short message sequenced in the queue.
In an alternative embodiment, the determining module is specifically configured to: judging whether the format of the demand information exceeds a preset legal data range or not; if yes, determining that the demand information is illegal, and feeding back the information for refusing the transmission of the uplink short message to the sender of the uplink short message; if not, determining that the demand information is legal, and judging whether at least one uplink beam exists in all the uplink beams of the stationary orbit satellite phased array and the user target have bidirectional visible conditions; wherein the bi-directional visual condition includes one of: direct visualization, back visualization of the adjusted beam direction, and visualization after waiting for a preset period of time; if not, feeding back the information refused to be sent by the uplink short message to the sender of the uplink short message; if yes, acquiring available time windows of all uplink beams of the stationary orbit satellite phased array; judging whether the estimated time for sending the uplink short message is not later than the time required by the transmission aging based on the available time window; if not, feeding back the information refused to be sent by the uplink short message to the sender of the uplink short message; if yes, determining that the transmission aging requirement of the uplink short message is met.
In an alternative embodiment, the preset beam allocation rule includes: judging whether a sender of the uplink short message designates a sending beam of the uplink short message; if yes, and under the condition that the sending beam is determined to be available, the sending beam is used as the target stationary orbit satellite phased array uplink beam; if not, judging whether a beam directly visible with the user target exists or not; if so, selecting the target stationary orbit satellite phased array uplink wave beam from the directly visible wave beams; if not, judging whether idle beams exist in all the uplink beams of the stationary orbit satellite phased array; if the idle beam exists, selecting a target stationary orbit satellite phased array uplink beam from the idle beam; and if the idle beam does not exist, the uplink beam with the shortest message queue selected from all the uplink beams of the phased array of the stationary orbit satellite is used as the uplink beam of the phased array of the target stationary orbit satellite.
In a third aspect, the present invention provides an electronic device, including a memory, and a processor, where the memory stores a computer program executable on the processor, and when the processor executes the computer program, implements the steps of the method for scheduling an uplink beam of a stationary orbiting satellite phased array in any of the foregoing embodiments.
In a fourth aspect, the present invention provides a computer readable storage medium storing computer instructions that when executed by a processor implement a method of scheduling stationary orbit satellite phased array uplink beams according to any of the preceding embodiments.
The scheduling method of the uplink beam of the stationary orbit satellite phased array is applied to a ground control center, is an improvement on the basis of the existing task mode of a stationary orbit satellite operation control system, and is newly added with a business data driving mode compatible with the original task mode to execute the task of sending the uplink short message.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a method for scheduling an uplink beam of a phased array of a stationary orbit satellite according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a data flow between modules in a ground management and control center according to an embodiment of the present invention;
fig. 3 is a functional block diagram of a scheduling device for uplink beams of a phased array of a stationary orbit satellite according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
Example 1
The embodiment of the invention provides a scheduling method of a static orbit satellite phased array uplink beam, which is applied to a ground management and control center, as shown in fig. 1, and specifically comprises the following steps:
step S102, receiving the uplink short message and the demand information of the uplink short message.
Specifically, the embodiment of the invention is based on a static orbit satellite phased array antenna electric scanning directional control mode, improves on the basis of the existing task mode (uplink continuous service mode driven according to a plan) of a single-address antenna, designs a new mode for driving service data to execute a short message task in a static orbit satellite operation control system, and completes the high-efficiency control of uplink beams based on three modules of task scheduling, control calculation and remote control of a ground control center.
In the embodiment of the invention, a ground station subsystem in a ground control center is provided with a state of receiving uplink data (namely, uplink short messages) of a data distribution module of the ground control center in a continuous service planning gap period in full time, namely, after the multipoint communication which is driven by a resource planning management module of the ground control center in real time is accessed into uplink continuous service, the state configuration of a service data driving mode of the uplink short messages is completed in a fixed service switching time; before executing the multipoint communication to access the uplink continuous service, the state configuration of the uplink continuous service mode is recovered in the fixed service switching time.
The specific workflow of the ground management and control center operating in the uplink short message service data driving mode is described in detail below, in the service data driving mode, a data distribution module of the ground management and control center receives uplink short messages and requirement information of the uplink short messages in a full time mode, after the data distribution module receives the information, the data distribution module locally caches the information, and meanwhile carries out unique formation numbering on each uplink short message, wherein the requirement information comprises: priority, transmission age requirements, data length, identity of the user object and location of the user object (stationary object is fixed coordinates, moving object is track information).
The priority is a reference condition for ordering the uplink short messages in a message sending queue of the uplink wave beam of the phased array of the static orbit satellite, namely, the priority is used for determining the sending sequence of the uplink short messages in the message sending queue of the uplink wave beam of the phased array of the static orbit satellite; each uplink short message is provided with a corresponding transmission aging requirement, for example, an X message is sent out before a certain appointed time point; the data length, namely the length of the uplink short message, is used for configuring the data frame; the identification of the user target is the identification of the receiver of the uplink short message; the position of the user target is the position of the receiving side of the uplink short message.
It should be noted that, the uplink short message may be sent by a user center that establishes a ground link with the ground control center in a normalized maintaining manner, and may also be downlink task data of a special frame type, that is, the receiver of the downlink task data of the special frame type is a satellite or other target, but not the user center, so for the ground control center, the downlink task data is sent as uplink task data to its user target.
Step S104, judging the legality of the demand information, the bidirectional visibility of the user target and at least one static orbit satellite phased array uplink beam and the transmission timeliness of the uplink short message.
In order to ensure that the sent uplink short message is legal data and can be smoothly sent to a user target of the short message, the data distribution module firstly judges the validity of the requirement information of the uplink short message after receiving the uplink short message and the requirement information thereof, and then sends the requirement information of the uplink short message to the short message control calculation module on the premise of determining the validity so as to enable the short message control calculation module to judge the bidirectional visibility and the transmission timeliness.
Step S106, under the condition that the requirement information is legal, the user target and at least one stationary orbit satellite phased array uplink wave beam are determined to be visible in two directions, and the transmission timeliness requirement of the uplink short message is met, the target stationary orbit satellite phased array uplink wave beam for transmitting the uplink short message is determined based on a preset wave beam distribution rule.
And S108, storing the uplink short message into a queue of an uplink beam of the target stationary orbit satellite phased array, and transmitting the uplink short message to a user target based on the uplink beam of the target stationary orbit satellite phased array when the uplink short message is the first short message ordered in the queue.
Only if the legality, the bidirectional visibility and the transmission timeliness in the above are satisfied, the short message control calculation module further judges and schedules the uplink short message, specifically, determines a target stationary orbit satellite phased array uplink beam for transmitting the uplink short message according to a preset beam allocation rule, queues the uplink short message in a determined message transmission queue of the uplink beam after the target stationary orbit satellite phased array uplink beam is specified, and transmits the uplink short message to a user target when the uplink short message is the first short message sequenced in the queue.
The scheduling method of the uplink beam of the stationary orbit satellite phased array is applied to the ground control center, is an improvement on the basis of the existing task mode of the stationary orbit satellite operation control system, and is newly added with a business data driving mode compatible with the original task mode to execute the task of sending the uplink short message.
In an optional embodiment, the step S104 is configured to determine validity of the demand information, bidirectional visibility of the user target and the uplink beam of the at least one stationary orbit satellite phased array, and transmission timeliness of the uplink short message, and specifically includes the following steps:
in step S1041, it is determined whether the format of the requirement information exceeds the preset legal data range.
If yes, the following step S1042 is executed; if not, the following step S1043 is performed.
Step S1042, determining that the demand information is illegal, and feeding back the information refusing the sending of the uplink short message to the sender of the uplink short message.
Step S1043, determining that the demand information is legal, and judging whether at least one uplink beam exists in all the uplink beams of the stationary orbit satellite phased array and the user target has bidirectional visible conditions.
If not, the following step S1044 is performed; if yes, the following step S1045 is performed.
Step S1044, feeding back the information of rejecting the sending of the uplink short message to the sender of the uplink short message.
Step S1045, obtaining an available time window of all uplink beams of the stationary orbiting satellite phased array.
Step S1046, based on the available time window, it is determined whether the estimated time for sending the short uplink message is not later than the time required for transmission aging.
If not, the following step S1047 is performed; if yes, the following step S1048 is performed.
Step S1047, feeding back the information of rejecting the sending of the uplink short message to the sender of the uplink short message.
Step S1048, determining that the transmission aging requirement of the uplink short message is satisfied.
Specifically, after the ground management and control center receives the uplink short message and the demand information of the uplink short message, the data distribution module firstly judges whether the format of the demand information exceeds a preset legal data range, specifically, each demand information is provided with a corresponding preset legal data range, for example, the preset legal data range of the priority is one-level to three-level, the preset legal data range required by the transmission timeliness is any time data before 18:00, the preset legal data range of the data length is a first preset length to a second preset length, the preset legal data range of the identification of the user target is a first numerical value to a second numerical value, and the preset legal data range of the position of the user target is a range determined by a preset longitude and latitude high coordinate threshold. Therefore, if at least one item of data in the demand information exceeds the corresponding preset legal data range, it is determined that the demand information of the uplink short message is illegal, and the information for rejecting the uplink short message is fed back to the sender of the uplink short message, and at the same time, the reject reason (i.e., the illegal reason) can be fed back, for example, the data length exceeds the preset legal data range.
If each item of data in the demand information accords with a corresponding preset legal data range, determining that the demand information of the uplink short message is legal, and then sending the short message demand information to a short message control calculation module by a data distribution module so as to judge whether at least one uplink beam and a user target in all the static orbit satellite phased array uplink beams have bidirectional visible conditions according to all the static orbit satellite uplink beam coverage areas by the short message control calculation module, wherein the bidirectional visible conditions comprise one of the following: the direct visualization, the adjusted beam pointing back visualization, the visualization after waiting for a preset period of time.
If no uplink beam and any user target in all uplink beams of the stationary orbit satellite phased array have the bidirectional visible condition, determining that the uplink beam and the user target are invisible, feeding back the information for rejecting the transmission of the uplink short message to the data distribution module, transmitting the reject information to the sender of the uplink short message by the data distribution module, and feeding back the reject reason, wherein the reject reason is specifically as follows: bi-directional visibility is not satisfied.
If it is determined that at least one uplink beam and a user target in all uplink beams of the stationary orbit satellite phased array have bidirectional visible conditions, the short message control calculation module needs to further acquire available time windows of all uplink beams of the stationary orbit satellite phased array from the resource plan management module, and according to the time windows, the short message control calculation module can generate estimated time for uplink short message transmission so as to judge whether the estimated time is not later than time required by transmission aging in the requirement information. If the estimated time is later than the time required by the transmission time, the short message control calculation module feeds back the information for refusing the transmission of the uplink short message to the data distribution module, and the data distribution module transmits the refusing information to the sender of the uplink short message, and meanwhile, the reason for refusing can be fed back, and the reason for refusing is specifically: the transmission aging requirement is not satisfied. If the estimated time of the sending of the uplink short message is not later than the time of the transmission aging requirement, the transmission aging requirement of the uplink short message is met, at this time, the short message control calculation module can feed back the estimated time of the sending of the uplink short message and the sending of the uplink short message to the data distribution module, and then the data distribution module forwards the information to a sender of the uplink short message.
After the short message control computing center determines that the uplink short message can be sent, a target stationary orbit satellite phased array uplink beam for transmitting the short message is further determined for the uplink short message by using a preset beam allocation rule, where in an optional embodiment, the preset beam allocation rule includes the following contents:
and judging whether the sender of the uplink short message designates the sending beam of the uplink short message.
If yes, and if the transmitting beam is determined to be available, the transmitting beam is taken as a target stationary orbit satellite phased array uplink beam.
If not, judging whether a beam directly visible to the user target exists.
If so, a target stationary orbit satellite phased array uplink beam is selected from the directly visible beams.
If not, judging whether idle beams exist in all the uplink beams of the stationary orbit satellite phased array.
And if the idle beam exists, selecting a target stationary orbit satellite phased array uplink beam from the idle beams.
And if the idle beam does not exist, the uplink beam with the shortest message queue selected from all the uplink beams of the stationary orbit satellite phased array is used as the target stationary orbit satellite phased array uplink beam.
Specifically, in the embodiment of the present invention, the short message sender includes a user center, where the user center may acquire a sending state of an uplink beam of the stationary orbit satellite, and further select a phased array uplink beam of the target stationary orbit satellite according to the sending state. The ground control center supports two modes of autonomous star selection of the short message sender and proxy star selection of the ground control center, and can send uplink short message service data as required. For the uplink short message with the sequential transmission requirement, after the short message sender obtains the feedback result of the uplink short message transmission of the previous frame, the next frame of the uplink short message is pushed to the ground management and control center.
Therefore, when selecting the uplink beam of the target stationary orbit satellite phased array, firstly judging whether the sender of the uplink short message designates the transmission beam of the uplink short message, and if the sender designates and determines that the designated transmission beam does not have resource conflict, namely the transmission beam is available, the ground control center takes the transmission beam designated by the sender of the short message as the uplink beam of the target stationary orbit satellite phased array.
If the sender of the uplink short message does not specify the sending beam of the uplink short message, the short message control calculation module preferentially selects the beam which is currently pointed to the target of the coverage user (namely, the beam which is directly visible with the target of the user), and when a plurality of beam orientations are available for coverage, an idle beam or a queue shortest beam is selected as the uplink beam of the target stationary orbit satellite phased array; if none of the coverage beams exists, an idle beam is preferentially designated as a target stationary orbit satellite phased array uplink beam; if there is no coverage and there is no idle beam, designating the uplink beam with the shortest uplink short message queue. After determining the uplink beam, the actually transmitted time window may be a short message service dedicated window of the beam, or may be a continuous service idle window of the beam.
In an alternative embodiment, after determining the target stationary orbit satellite phased array uplink beam for transmitting the uplink short message based on the preset beam allocation rule, the method of the present invention further comprises the following steps:
step S201, determining the sending sequence of the uplink short message in the message queue of the target stationary orbit satellite phased array uplink beam based on the priority of the uplink short message.
Step S202, judging whether beam directions corresponding to all messages sequenced before the uplink short message are consistent with beam directions corresponding to the uplink short message or not in a current sending window of the target stationary orbit satellite phased array uplink beam.
If not, executing the following step S203; if so, the following step S204 is performed.
In step S203, when it is determined that the beam direction of the uplink beam of the target stationary orbit satellite phased array is consistent with the beam direction corresponding to the uplink short message, and the beam direction adjustment is not performed until the uplink short message is transmitted, the uplink short message is transmitted to the ground station, so that the ground station transmits the uplink short message to the user target based on the uplink beam of the target stationary orbit satellite phased array.
Step S204, the uplink short message is sent to the ground station.
In the embodiment of the invention, the short message control calculation module determines the sending sequence of the uplink short message in the message queue of the target stationary orbit satellite phased array uplink beam according to the priority of the uplink short message according to the principle of 'high priority sending and same priority first to first sending', namely, determines the queuing sequence of the uplink short message. In a single batch of target sending windows, the short message control calculation module processes the short messages according to the set sequence of the batch, when the fact that the beam directions of the uplink short messages in the current sending window are consistent with the beam directions corresponding to all the messages arranged in front of the uplink short messages is confirmed, namely, when the beam directions are not required to be adjusted, the short message control calculation module informs the data distribution module that the uplink short messages can be sent, at the moment, the data distribution module sends the uplink short messages to the ground station, and waits for the ground station to send the messages to a user target of the uplink short messages through a target stationary orbit satellite phased array uplink beam.
When the beam direction of the uplink short message is inconsistent with the beam direction corresponding to the message arranged in front of the uplink short message, the step that the beam direction of the uplink beam of the target stationary orbit satellite phased array needs to be adjusted before the uplink short message is sent is described, and the short message control calculation module only informs the data distribution module that the uplink short message can be sent when the beam direction of the uplink beam of the target stationary orbit satellite phased array is consistent with the beam direction corresponding to the uplink short message, and the beam direction adjustment is not performed before the uplink short message is sent. When the beam direction adjustment is needed, the short message control calculation module firstly informs the task scheduling module of running the beam adjustment script, and informs the data transmission module that the short message can be transmitted after judging that the on-board instruction is executed through the telemetry information.
In an alternative embodiment, after the uplink short message is sent to the user target based on the target stationary orbit satellite phased array uplink beam, the method further comprises the following steps: and feeding back the sent state of the uplink short message to the sender of the uplink short message.
In the embodiment of the invention, for the short message which can be sent, the data distribution module lists the short message into a message sending queue of a corresponding target stationary orbit satellite phased array uplink beam, sends the short message to the ground station, and deletes the short message from the queue; for the short message which can not complete the sending task, the data distribution module also deletes the short message from the uplink short message queue and informs the short message sender of the failure and the failure reason of the task.
After receiving the uplink short message data, the ground station feeds back the uplink service receiving state, namely the receiving state of the uplink short message, to the data distribution module in real time. After the sending is finished, the sent state of the uplink service is fed back to the data distribution module, and after the sent state of the uplink service of the ground station is received, the data distribution module forwards the sent state to a sender of the short message in real time. Fig. 2 is a schematic diagram of a data flow between each module in a ground control center, and in combination with fig. 2 and the description above, the scheduling method for the uplink beam of the stationary orbit satellite phased array provided by the embodiment of the invention can be clearly presented.
Example two
The embodiment of the invention also provides a device for dispatching the uplink wave beam of the stationary orbit satellite phased array, which is applied to a ground control center and is mainly used for executing the dispatching method of the uplink wave beam of the stationary orbit satellite phased array provided by the first embodiment.
Fig. 3 is a functional block diagram of a scheduling device for uplink beams of a phased array of a stationary orbit satellite according to an embodiment of the present invention, as shown in fig. 3, where the device mainly includes: a receiving module 10, a judging module 20, a determining module 30, a storing and transmitting module 40, wherein:
a receiving module 10, configured to receive an uplink short message and requirement information of the uplink short message; wherein, the demand information includes: priority, age requirements for transmission, data length, identity of the user object, and location of the user object.
The judging module 20 is configured to judge validity of the demand information, bidirectional visibility of the user target and at least one uplink beam of the stationary orbit satellite phased array, and transmission timeliness of the uplink short message.
The determining module 30 is configured to determine, based on a preset beam allocation rule, a target stationary orbit satellite phased array uplink beam for transmitting an uplink short message when it is determined that the demand information is legal, the user target is visible in both directions with at least one stationary orbit satellite phased array uplink beam, and a transmission aging requirement of the uplink short message is satisfied.
The storage and sending module 40 is configured to store the uplink short message in a queue of the target stationary orbit satellite phased array uplink beam, and send the uplink short message to the user target based on the target stationary orbit satellite phased array uplink beam when the uplink short message is the first short message ordered in the queue.
The scheduling device of the uplink beam of the stationary orbit satellite phased array is applied to the ground control center, is an improvement on the basis of the existing task mode of the stationary orbit satellite operation control system, and is newly added with a business data driving mode compatible with the original task mode to execute the task of sending the uplink short message.
Optionally, the judging module 20 is specifically configured to:
and judging whether the format of the demand information exceeds a preset legal data range.
If yes, determining that the demand information is illegal, and feeding back the information for refusing the sending of the uplink short message to the sender of the uplink short message.
If not, determining that the demand information is legal, and judging whether at least one uplink wave beam exists in all the uplink wave beams of the stationary orbit satellite phased array and the user target have bidirectional visible conditions; wherein the bi-directional visual condition includes one of: the direct visualization, the adjusted beam pointing back visualization, the visualization after waiting for a preset period of time.
If not, the information refusing the sending of the uplink short message is fed back to the sender of the uplink short message.
If yes, the available time windows of all the uplink beams of the stationary orbit satellite phased array are obtained.
And judging whether the estimated time for sending the uplink short message is not later than the time required by transmission aging based on the available time window.
If not, the information refusing the sending of the uplink short message is fed back to the sender of the uplink short message.
If yes, determining that the transmission aging requirement of the uplink short message is met.
Optionally, the preset beam allocation rule includes:
and judging whether the sender of the uplink short message designates the sending beam of the uplink short message.
If yes, and if the transmitting beam is determined to be available, the transmitting beam is taken as a target stationary orbit satellite phased array uplink beam.
If not, judging whether a beam directly visible to the user target exists.
If so, a target stationary orbit satellite phased array uplink beam is selected from the directly visible beams.
If not, judging whether idle beams exist in all the uplink beams of the stationary orbit satellite phased array.
And if the idle beam exists, selecting a target stationary orbit satellite phased array uplink beam from the idle beams.
And if the idle beam does not exist, the uplink beam with the shortest message queue selected from all the uplink beams of the stationary orbit satellite phased array is used as the target stationary orbit satellite phased array uplink beam.
Optionally, the device is further configured to:
and determining the sending sequence of the uplink short message in a message queue of the uplink beam of the target stationary orbit satellite phased array based on the priority of the uplink short message.
And judging whether the beam directions corresponding to all messages sequenced before the uplink short message are consistent with the beam directions corresponding to the uplink short message or not in the current sending window of the target stationary orbit satellite phased array uplink beam.
If the beam directions of the uplink beams of the target stationary orbit satellite phased array are inconsistent, the uplink short messages are sent to the ground station under the condition that the beam directions of the uplink beams of the target stationary orbit satellite phased array are consistent with the beam directions corresponding to the uplink short messages, and the beam directions are not adjusted until the uplink short messages are sent, so that the ground station sends the uplink short messages to a user target based on the uplink beams of the target stationary orbit satellite phased array.
And if the uplink short messages are consistent, sending the uplink short messages to the ground station.
Optionally, the device is further configured to:
and feeding back the sent state of the uplink short message to the sender of the uplink short message.
Example III
Referring to fig. 4, an embodiment of the present invention provides an electronic device, including: a processor 60, a memory 61, a bus 62 and a communication interface 63, the processor 60, the communication interface 63 and the memory 61 being connected by the bus 62; the processor 60 is arranged to execute executable modules, such as computer programs, stored in the memory 61.
The memory 61 may include a high-speed random access memory (RAM, random Access Memory), and may further include a non-volatile memory (non-volatile memory), such as at least one magnetic disk memory. The communication connection between the system network element and at least one other network element is achieved via at least one communication interface 63 (which may be wired or wireless), and may use the internet, a wide area network, a local network, a metropolitan area network, etc.
Bus 62 may be an ISA bus, a PCI bus, an EISA bus, or the like. The buses may be classified as address buses, data buses, control buses, etc. For ease of illustration, only one bi-directional arrow is shown in FIG. 4, but not only one bus or type of bus.
The memory 61 is configured to store a program, and the processor 60 executes the program after receiving an execution instruction, and the method executed by the apparatus for defining a process disclosed in any of the foregoing embodiments of the present invention may be applied to the processor 60 or implemented by the processor 60.
The processor 60 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuitry in hardware or instructions in software in the processor 60. The processor 60 may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.; but may also be a digital signal processor (Digital Signal Processing, DSP for short), application specific integrated circuit (Application Specific Integrated Circuit, ASIC for short), off-the-shelf programmable gate array (Field-Programmable Gate Array, FPGA for short), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory 61 and the processor 60 reads the information in the memory 61 and in combination with its hardware performs the steps of the method described above.
The computer program product of the method and apparatus for scheduling an uplink beam of a stationary orbit satellite phased array provided in the embodiments of the present invention includes a computer readable storage medium storing a non-volatile program code executable by a processor, where the program code includes instructions for executing the method described in the foregoing method embodiments, and specific implementation may refer to the method embodiments and will not be repeated herein.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer readable storage medium executable by a processor. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (8)

1. The scheduling method of the static orbit satellite phased array uplink wave beam is characterized by being applied to a ground control center and comprising the following steps of:
Receiving an uplink short message and demand information of the uplink short message; wherein the demand information includes: priority, transmission age requirement, data length, identity of a user target and location of the user target;
judging the validity of the demand information, the bidirectional visibility of the user target and at least one static orbit satellite phased array uplink beam and the transmission timeliness of the uplink short message;
under the conditions that the demand information is legal, the user target and at least one stationary orbit satellite phased array uplink beam are bidirectionally visible and the transmission timeliness requirement of the uplink short message is met, determining a target stationary orbit satellite phased array uplink beam for transmitting the uplink short message based on a preset beam distribution rule;
storing the uplink short message into a queue of the target stationary orbit satellite phased array uplink beam, and transmitting the uplink short message to the user target based on the target stationary orbit satellite phased array uplink beam when the uplink short message is the first short message sequenced in the queue;
the determining of the validity of the requirement information, the bidirectional visibility of the user target and the uplink beam of at least one stationary orbit satellite phased array, and the transmission timeliness of the uplink short message includes:
Judging whether the format of the demand information exceeds a preset legal data range or not;
if yes, determining that the demand information is illegal, and feeding back the information for refusing the transmission of the uplink short message to the sender of the uplink short message;
if not, determining that the demand information is legal, and judging whether at least one uplink beam exists in all the uplink beams of the stationary orbit satellite phased array and the user target have bidirectional visible conditions; wherein the bi-directional visual condition includes one of: direct visualization, back visualization of the adjusted beam direction, and visualization after waiting for a preset period of time;
if not, feeding back the information refused to be sent by the uplink short message to the sender of the uplink short message;
if yes, acquiring available time windows of all uplink beams of the stationary orbit satellite phased array;
judging whether the estimated time for sending the uplink short message is not later than the time required by the transmission aging based on the available time window;
if not, feeding back the information refused to be sent by the uplink short message to the sender of the uplink short message;
if yes, determining that the transmission aging requirement of the uplink short message is met.
2. The method for scheduling an uplink beam of a stationary orbiting satellite phased array according to claim 1, wherein the preset beam allocation rule comprises:
judging whether a sender of the uplink short message designates a sending beam of the uplink short message;
if yes, and under the condition that the sending beam is determined to be available, the sending beam is used as the target stationary orbit satellite phased array uplink beam;
if not, judging whether a beam directly visible with the user target exists or not;
if so, selecting the target stationary orbit satellite phased array uplink wave beam from the directly visible wave beams;
if not, judging whether idle beams exist in all the uplink beams of the stationary orbit satellite phased array;
if the idle beam exists, selecting a target stationary orbit satellite phased array uplink beam from the idle beam;
and if the idle beam does not exist, the uplink beam with the shortest message queue selected from all the uplink beams of the phased array of the stationary orbit satellite is used as the uplink beam of the phased array of the target stationary orbit satellite.
3. The method for scheduling stationary orbiting satellite phased array uplink beams according to claim 1, wherein after determining a target stationary orbiting satellite phased array uplink beam for transmitting the uplink short message based on a preset beam allocation rule, the method further comprises:
Determining the sending sequence of the uplink short message in a message queue of the target stationary orbit satellite phased array uplink beam based on the priority of the uplink short message;
judging whether the beam directions corresponding to all messages sequenced before the uplink short message are consistent with the beam directions corresponding to the uplink short message or not in the current sending window of the target stationary orbit satellite phased array uplink beam;
if the beam directions of the uplink beams of the target stationary orbit satellite phased array are inconsistent, the uplink short message is sent to a ground station under the condition that the beam directions of the uplink beams of the target stationary orbit satellite phased array are consistent with the beam directions corresponding to the uplink short message and the beam directions are not adjusted until the uplink short message is sent, so that the ground station sends the uplink short message to the user target based on the target stationary orbit satellite phased array uplink beams;
and if the uplink short messages are consistent, the uplink short messages are sent to the ground station.
4. The method of scheduling an uplink beam of a stationary orbiting satellite phased array of claim 1, wherein after transmitting the uplink short message to the user target based on the target stationary orbiting satellite phased array uplink beam, the method further comprises:
And feeding back the sent state of the uplink short message to the sender of the uplink short message.
5. The utility model provides a scheduling device of stationary orbit satellite phased array uplink wave beam which characterized in that is applied to ground management and control center, includes:
the receiving module is used for receiving the uplink short message and the requirement information of the uplink short message; wherein the demand information includes: priority, transmission age requirement, data length, identity of a user target and location of the user target;
the judging module is used for judging the legality of the demand information, the bidirectional visibility of the user target and at least one static orbit satellite phased array uplink beam and the transmission timeliness of the uplink short message;
the determining module is used for determining a target stationary orbit satellite phased array uplink beam for sending the uplink short message based on a preset beam distribution rule under the conditions that the demand information is legal, the user target and at least one stationary orbit satellite phased array uplink beam are visible in two directions and the transmission timeliness requirement of the uplink short message is met;
the storage and transmission module is used for storing the uplink short message into a queue of the target stationary orbit satellite phased array uplink beam, and transmitting the uplink short message to the user target based on the target stationary orbit satellite phased array uplink beam when the uplink short message is the first short message sequenced in the queue;
The judging module is specifically configured to:
judging whether the format of the demand information exceeds a preset legal data range or not;
if yes, determining that the demand information is illegal, and feeding back the information for refusing the transmission of the uplink short message to the sender of the uplink short message;
if not, determining that the demand information is legal, and judging whether at least one uplink beam exists in all the uplink beams of the stationary orbit satellite phased array and the user target have bidirectional visible conditions; wherein the bi-directional visual condition includes one of: direct visualization, back visualization of the adjusted beam direction, and visualization after waiting for a preset period of time;
if not, feeding back the information refused to be sent by the uplink short message to the sender of the uplink short message;
if yes, acquiring available time windows of all uplink beams of the stationary orbit satellite phased array;
judging whether the estimated time for sending the uplink short message is not later than the time required by the transmission aging based on the available time window;
if not, feeding back the information refused to be sent by the uplink short message to the sender of the uplink short message;
if yes, determining that the transmission aging requirement of the uplink short message is met.
6. The stationary orbiting satellite phased array uplink beam scheduling device of claim 5, wherein the preset beam allocation rule comprises:
judging whether a sender of the uplink short message designates a sending beam of the uplink short message;
if yes, and under the condition that the sending beam is determined to be available, the sending beam is used as the target stationary orbit satellite phased array uplink beam;
if not, judging whether a beam directly visible with the user target exists or not;
if so, selecting the target stationary orbit satellite phased array uplink wave beam from the directly visible wave beams;
if not, judging whether idle beams exist in all the uplink beams of the stationary orbit satellite phased array;
if the idle beam exists, selecting a target stationary orbit satellite phased array uplink beam from the idle beam;
and if the idle beam does not exist, the uplink beam with the shortest message queue selected from all the uplink beams of the phased array of the stationary orbit satellite is used as the uplink beam of the phased array of the target stationary orbit satellite.
7. An electronic device comprising a memory, a processor, the memory having stored thereon a computer program executable on the processor, characterized in that the processor, when executing the computer program, implements the steps of the method for scheduling stationary orbiting satellite phased array uplink beams of any of claims 1 to 4.
8. A computer readable storage medium storing computer instructions which when executed by a processor implement the method of scheduling stationary orbit satellite phased array uplink beams according to any one of claims 1 to 4.
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