CN112804011B - Communication satellite interference suppression method and device and electronic equipment - Google Patents

Communication satellite interference suppression method and device and electronic equipment Download PDF

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CN112804011B
CN112804011B CN202011643598.8A CN202011643598A CN112804011B CN 112804011 B CN112804011 B CN 112804011B CN 202011643598 A CN202011643598 A CN 202011643598A CN 112804011 B CN112804011 B CN 112804011B
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frequency sub
target
power level
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CN112804011A (en
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韩宝玲
李运筹
熊定喜
钟福贵
李志涛
黄霄腾
胡文静
韩星晔
代龙震
商贺
赵斌
刘准
郭磊
陶金
李鑫
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32039 Unit Of Chinese Pla
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • 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
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • 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
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation 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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  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a communication satellite interference suppression method, a communication satellite interference suppression device and electronic equipment, and relates to the technical field of satellite communication. The method has no manual intervention in the execution process, can quickly respond to the burst interference, reduces the adverse effect of the interference on the system, and effectively solves the technical problem of low execution efficiency of the communication satellite interference suppression method in the prior art.

Description

Communication satellite interference suppression method and device and electronic equipment
Technical Field
The present invention relates to the field of satellite communications technologies, and in particular, to a method and an apparatus for suppressing interference of a communication satellite, and an electronic device.
Background
A plurality of user beams are carried on a mobile communication satellite, frequency resources are used among the beams in a seven-color multiplexing mode, however, due to the fact that the frequency resources are overlapped with the frequency of a ground application system, part of the user beams are interfered by the ground frequency, not only are precious transponder power resources of the satellite occupied, but also normal user communication is influenced, and even the system cannot be used.
At present, the existing mobile communication satellite adopts a mode of adjusting user beam receiving gain to reduce adverse effects caused by ground interference, the operation of reducing the beam receiving gain needs a ground carrier monitoring system to monitor the satellite frequency spectrum in real time, the satellite frequency spectrum is reported to an operation control system when interference occurs, the operation control system station personnel evaluates the influence of the monitored interference signals on the user communication according to the bandwidth and the power intensity of the interference signals, and the decision of controlling the beam receiving gain is made by combining the actual communication condition of the system. However, the whole operation process of the method depends on the experience and judgment capability of post personnel to a greater extent, so that the time from the occurrence of system interference to the response means is longer.
In summary, the interference suppression method for communication satellites in the prior art has the technical problem of low execution efficiency.
Disclosure of Invention
The invention aims to provide a communication satellite interference suppression method, a communication satellite interference suppression device and electronic equipment, so as to relieve the technical problem of low execution efficiency of the communication satellite interference suppression method in the prior art.
In a first aspect, the present invention provides a method for suppressing interference of a communication satellite, including: acquiring communication frequency use information of a beam to be monitored, channel attenuation information of the beam to be monitored and power level values of all carrier frequency sub-bands of the beam to be monitored; determining a target carrier frequency sub-band from among the all carrier frequency sub-bands based on the communication frequency usage information and the power level values of the all carrier frequency sub-bands; the beam interference variation of the target carrier frequency sub-band exceeds a preset variation range; acquiring a power level value of a target channel with frequency intersection with the target carrier frequency sub-band; determining an attenuation adjustment strategy for the target channel based on the power level value of the target channel and the channel attenuation information.
In an alternative embodiment, the communication frequency usage information includes: communication frequency sub-band division information and a power resource occupation value of each communication frequency sub-band; determining a target carrier frequency subband from among said all carrier frequency subbands based on said communication frequency usage information and power level values of said all carrier frequency subbands, comprising: acquiring a preset interference identification threshold and preset carrier noise bottoms of all carrier frequency sub-bands of the beam to be monitored; wherein, the presetting of the interference identification threshold comprises: the method comprises the steps that a first identification threshold and a second identification threshold are obtained, and the first identification threshold is larger than the second identification threshold; determining a target power level value of a first carrier frequency sub-band based on a power level value of the first carrier frequency sub-band, a preset carrier noise floor of the first carrier frequency sub-band and a power resource occupation value of a communication frequency sub-band with a frequency intersection with the first carrier frequency sub-band; wherein the first carrier frequency sub-band represents any one of all carrier frequency sub-bands; and if the target power level value of the first carrier frequency sub-band is not less than the first identification threshold, or the target power level value of the first carrier frequency sub-band is less than the second identification threshold, taking the first carrier frequency sub-band as the target carrier frequency sub-band.
In an optional embodiment, determining the attenuation adjustment policy of the target channel based on the power level value of the target channel and the channel attenuation information includes: acquiring a preset interference handling threshold; wherein the preset interference handling threshold comprises: a first handling threshold and a second handling threshold, the first handling threshold being greater than the second handling threshold; if the power level value of the target channel is not less than the first handling threshold, closing the target channel, and stopping allocating the frequency resource corresponding to the target channel to the user.
In an alternative embodiment, the method further comprises: and if the power level value of the target channel is smaller than the first processing threshold and the target power level value of a second carrier frequency sub-band with frequency intersection with the target channel is not smaller than the first identification threshold, maintaining the attenuation state of the target channel and stopping allocating frequency resources corresponding to the second carrier frequency sub-band to the user.
In an alternative embodiment, the method further comprises: and if the target channel is in a closed state and the power level value of the target channel is smaller than the second handling threshold, restoring the target channel to an open state and allowing the frequency resource corresponding to the target channel to be allocated to the user again.
In an alternative embodiment, the method further comprises: and if the target power level value of the third carrier frequency sub-band marked as stopping allocating the frequency resources for the user is smaller than the second identification threshold, re-allowing the frequency resources corresponding to the third carrier frequency sub-band to be allocated for the user.
In an optional implementation manner, if a target communication frequency subband is not occupied, the power resource occupation value of the target communication frequency subband is 0; wherein the target communication frequency sub-band is any one of all communication frequency sub-bands.
In a second aspect, the present invention provides a communication satellite interference suppression apparatus, including: a first obtaining module, configured to obtain communication frequency usage information of a beam to be monitored, channel attenuation information of the beam to be monitored, and power level values of all carrier frequency subbands of the beam to be monitored; a first determining module for determining a target carrier frequency subband from said all carrier frequency subbands based on said communication frequency usage information and power level values of said all carrier frequency subbands; the beam interference variation of the target carrier frequency sub-band exceeds a preset variation range; a second obtaining module, configured to obtain a power level value of a target channel having a frequency intersection with the target carrier frequency sub-band; a second determining module for determining an attenuation adjustment strategy for the target channel based on the power level value of the target channel and the channel attenuation information.
In a third aspect, the present invention provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program operable on the processor, and the processor executes the computer program to implement the steps of the method according to any of the foregoing embodiments.
In a fourth aspect, the invention provides a computer readable medium having non-volatile program code executable by a processor, the program code causing the processor to perform the method of any of the preceding embodiments.
The invention provides a communication satellite interference suppression method, which comprises the following steps: acquiring communication frequency use information of a beam to be monitored, channel attenuation information of the beam to be monitored and power level values of all carrier frequency sub-bands of the beam to be monitored; determining a target carrier frequency sub-band from all carrier frequency sub-bands based on the communication frequency usage information and the power level values of all carrier frequency sub-bands; the beam interference variation of the target carrier frequency sub-band exceeds a preset variation range; acquiring a power level value of a target channel with frequency intersection with a target carrier frequency sub-band; an attenuation adjustment strategy for the target channel is determined based on the power level value of the target channel and the channel attenuation information.
The interference suppression method for the communication satellite in the prior art depends heavily on the experience and judgment capability of post personnel, and the time from the occurrence of interference of a system to the response of the system is long, so that the execution efficiency of the method is low. Compared with the prior art, the communication satellite interference suppression method provided by the invention has the advantages that the power level values of all carrier frequency sub-bands of the beam to be monitored are monitored in real time, the target carrier frequency sub-bands with the beam interference variation exceeding the preset variation range can be preliminarily determined by combining the communication frequency use information, then the power level value of the target channel with the frequency intersection with the target carrier frequency sub-bands is further obtained, and finally the attenuation adjustment strategy of the target channel is determined according to the power level value of the target channel and the channel attenuation information. The method has no manual intervention in the execution process, can quickly respond to the burst interference, reduces the adverse effect of the interference on the system, and effectively solves the technical problem of low execution efficiency of the communication satellite interference suppression method in the prior art.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a method for interference suppression of a communication satellite according to an embodiment of the present invention;
fig. 2 is a flowchart for determining a target carrier frequency subband from all carrier frequency subbands based on communication frequency usage information and power level values of all carrier frequency subbands according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a distributed control flow of a communication satellite interference suppression system according to an embodiment of the present invention;
fig. 4 is a functional block diagram of an interference suppression apparatus for a communication satellite according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of 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 present invention, 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The mobile satellite communication system has the main task of providing uninterrupted communication service for various small mobile user terminals, but because ground interference of various types such as single frequency point, narrow band, broadband and the like exists in a mobile communication satellite beam service area, the power resource of the satellite system is occupied, and the communication effect of a satellite link is adversely affected. Therefore, in order to improve the system efficiency, it is necessary to monitor the ground interference situation in real time and take interference countermeasures according to the interference avoidance technology provided by the system.
The existing mobile communication satellite adopts a mode of adjusting user beam receiving gain to reduce adverse effects caused by ground interference, and when the ground interference occurs, the influence of the interference signal on a system is evaluated according to the bandwidth and the power intensity of the interference signal, so that the occupation of the interference on power resources of a satellite transponder is reduced in a mode of reducing the receiving beam gain or even closing a beam receiving channel, and the influence of the interference on the user is reduced.
The operation of reducing the beam receiving gain needs the ground carrier monitoring system to monitor the satellite frequency spectrum in real time, the satellite frequency spectrum is reported to the operation control system when interference occurs, the operation control system post personnel evaluate the influence of the monitored interference signal on the user communication according to the bandwidth and the power intensity of the monitored interference signal, and the control decision of reducing the beam gain is made by combining the actual communication condition of the system. However, the whole operation process of the method depends on the experience and judgment capability of post personnel to a greater extent, so that the time from the occurrence of system interference to the response means is longer. Embodiments of the present invention provide a method for suppressing interference of a communication satellite, so as to alleviate the above-mentioned technical problems.
Example one
Fig. 1 is a flowchart of a method for suppressing interference of a communication satellite according to an embodiment of the present invention, as shown in fig. 1, the method specifically includes the following steps:
step S102, obtaining the communication frequency use information of the beam to be monitored, the channel attenuation information of the beam to be monitored and the power level values of all carrier frequency sub-bands of the beam to be monitored.
Specifically, the execution subject of the interference suppression method for a communication satellite provided by the embodiment of the present invention may be an operation control system for a communication satellite, or may be other monitoring systems, if the execution subject of the method is the operation and control system of the communication satellite, in order to reduce the adverse effect of the interference band on the system, the operation and control system needs to acquire the power level values of all carrier frequency sub-bands of the beam to be monitored, the communication frequency use information of the beam to be monitored and the channel attenuation information of the beam to be monitored in real time, wherein, the data source of the power level values of all the carrier frequency sub-bands is a carrier monitoring system which is in communication connection with the operation and control system, the carrier monitoring system is used for monitoring all the carriers of the beams to be monitored in real time, and reporting the power level values of all carrier frequency sub-bands, wherein if the carrier monitoring system divides the frequency resources of the beams to be monitored into m parts, the power level values of all carrier frequency sub-bands obtained by real-time measurement can be represented as { p.1,p2,p3,…,pmIn dBm.
The communication frequency use information of the beams to be monitored is set by the operation control system, and mainly comprises the division of the communication frequency by the operation control systemThe situation and the power resource occupation situation of each communication frequency sub-band; the satellite divides the frequency resource of the beam to be monitored into k channel sub-bands, and the channel attenuation information of the beam to be monitored can be expressed as { a }1,a2,a3,…,akIn the embodiment of the present invention, values of a are divided into two types, one is 0, and the other is an attenuation extremum, and if attenuation information of a certain channel is an attenuation extremum, it indicates that the channel is in a closed state; on the contrary, if the attenuation information of a certain channel is no attenuation (the value is 0), the channel is in an open state. The information source of the channel attenuation information is a measurement and control system in communication connection with the operation and control system, and the measurement and control system can be in communication connection with a satellite. In the embodiment of the present invention, the number of carrier frequency subbands is greater than the number of communication frequency subbands, and the number of communication frequency subbands is greater than the number of channel subbands.
Step S104, based on the communication frequency usage information and the power level values of all carrier frequency sub-bands, determines a target carrier frequency sub-band from all carrier frequency sub-bands.
After the power level values of all carrier frequency sub-bands are acquired, the target carrier frequency sub-band can be determined from all carrier frequency sub-bands by combining with the communication frequency use information of the beam to be monitored, wherein the beam interference variation of the target carrier frequency sub-band exceeds a preset variation range, and it can also be understood that the beam interference variation of the target carrier frequency sub-band is larger and exceeds the preset variation range.
Step S106, obtaining the power level value of the target channel with frequency intersection with the target carrier frequency sub-band.
As can be seen from the above description, the carrier frequency sub-band and the channel sub-band are divided differently, and the carrier frequency sub-band divides the frequency resource of the beam to be monitored more finely than the channel sub-band, so that there are at most two target channels having frequency intersection with the target carrier frequency sub-band. Since the amount of beam interference variation of the target carrier frequency sub-band exceeds the preset variation range, in order to reduce unnecessary calculation, it is only necessary to further acquire the power level value of the target channel having frequency intersection with the target carrier frequency sub-band.
Step S108, the attenuation adjustment strategy of the target channel is determined based on the power level value of the target channel and the channel attenuation information.
After the power level value of the target channel is obtained, the attenuation adjustment strategy of the target channel can be determined by combining the channel attenuation information of the beam to be monitored (specifically, the channel attenuation information of the target channel). The specific attenuation adjustment procedure will be described in detail below.
The interference suppression method for the communication satellite in the prior art depends heavily on the experience and judgment capability of post personnel, and the time from the occurrence of interference of a system to the response of the system is long, so that the execution efficiency of the method is low. Compared with the prior art, the communication satellite interference suppression method provided by the invention has the advantages that the power level values of all carrier frequency sub-bands of the beam to be monitored are monitored in real time, the target carrier frequency sub-bands with the beam interference variation exceeding the preset variation range can be preliminarily determined by combining the communication frequency use information, then the power level value of the target channel with the frequency intersection with the target carrier frequency sub-bands is further obtained, and finally the attenuation adjustment strategy of the target channel is determined according to the power level value of the target channel and the channel attenuation information. The method has no manual intervention in the execution process, can quickly respond to the burst interference, reduces the adverse effect of the interference on the system, and effectively solves the technical problem of low execution efficiency of the communication satellite interference suppression method in the prior art.
The method for suppressing interference of a communication satellite according to the embodiments of the present invention is briefly introduced above, and the related method steps involved therein are described in detail below.
In an alternative embodiment, the communication frequency usage information comprises: communication frequency sub-band division information and a power resource occupation value of each communication frequency sub-band.
Specifically, if the operation control system divides the frequency resource of the beam to be monitored into n parts, the communication frequency sub-band division information may be expressed as { f }1,f2,f3,…,fnAt time t, the power resource occupation value of the communication frequency sub-band can be expressed as
Figure BDA0002880693450000091
On this basis, as shown in fig. 2, the step S104, which determines the target carrier frequency subband from all carrier frequency subbands based on the communication frequency usage information and the power level values of all carrier frequency subbands, specifically includes the following steps:
step S1041, obtaining a preset interference identification threshold and preset carrier noise floors of all carrier frequency subbands of the beam to be monitored.
In the embodiment of the present invention, to determine a target carrier frequency subband, a preset interference identification threshold and a preset carrier noise floor of each carrier frequency subband are first obtained, where the preset interference identification threshold includes: the device comprises a first identification threshold and a second identification threshold, wherein the first identification threshold is larger than the second identification threshold. In the embodiment of the present invention, the first recognition threshold may be understood as a threshold for occurrence of interference, and the second recognition threshold may be understood as a threshold for disappearance of interference. The preset carrier noise floor is obtained by carrier measurement before the satellite is put into communication and can be expressed as s1,s2,s3,…,smIn dBm.
Step S1042, determining a target power level value of the first carrier frequency subband based on the power level value of the first carrier frequency subband, a preset carrier noise floor of the first carrier frequency subband, and a power resource occupation value of a communication frequency subband having a frequency intersection with the first carrier frequency subband.
Specifically, the target power level value of the first carrier frequency subband may be obtained by subtracting the power level value of the first carrier frequency subband from the preset carrier noise floor of the first carrier frequency subband and the power resource occupation value of the communication frequency subband having a frequency intersection with the first carrier frequency subband, and the calculation process may be expressed as
Figure BDA0002880693450000092
Wherein p' represents a target power level value for the first carrier frequency subband，piRepresenting a power level value, s, of a sub-band of a first carrier frequencyiA preset carrier noise floor representing the first carrier frequency sub-band,
Figure BDA0002880693450000093
a power resource occupancy value representing a communication frequency subband having a frequency intersection with a first carrier frequency subband, i.e. the i-th carrier frequency subband having an intersection with the j-th communication frequency subband, wherein the first carrier frequency subband represents any one of all carrier frequency subbands.
Step S1043, if the target power level value of the first carrier frequency sub-band is not less than the first identification threshold, or the target power level value of the first carrier frequency sub-band is less than the second identification threshold, then the first carrier frequency sub-band is taken as the target carrier frequency sub-band.
And after calculating to obtain a target power level value of the first carrier frequency sub-band, comparing the target power level value with a first identification threshold and a second identification threshold, and if the target power level value of the first carrier frequency sub-band is not less than the first identification threshold or the target power level value of the first carrier frequency sub-band is less than the second identification threshold, taking the first carrier frequency sub-band as the target carrier frequency sub-band.
As can be seen from the above description, there are at most two channels having frequency intersections with the carrier frequency subbands, and on the same principle, there are at most two communication frequency subbands having frequency intersections with the carrier frequency subbands, so that if there are two communication frequency subbands having frequency intersections with the first carrier frequency subband, then in step S1042, two target power level values of the first carrier frequency subband are obtained, and when step S1043 is sequentially executed, if one of the target power level values meets the above comparison condition, the first carrier frequency subband can be used as the target carrier frequency subband.
In an optional implementation manner, the step S108 of determining the attenuation adjustment policy of the target channel based on the power level value of the target channel and the channel attenuation information specifically includes the following steps:
step S1081, obtaining a preset interference handling threshold; wherein, the preset interference handling threshold comprises: a first handling threshold and a second handling threshold, the first handling threshold being greater than the second handling threshold.
If the power level value of the target channel is not less than the first handling threshold, executing step S1082; if the power level value of the target channel is less than the first handling threshold and the target power level value of the second carrier frequency sub-band having frequency intersection with the target channel is not less than the first identification threshold, executing step S1083; if the target channel is in the closed state and the power level value of the target channel is less than the second handling threshold, executing step S1084; if the target power level value of the third carrier frequency sub-band marked to stop allocating frequency resources for the user is less than the second identification threshold, then step S1085 is performed.
Step S1082, close the target channel, and stop allocating the frequency resource corresponding to the target channel to the user.
Step S1083, maintaining the attenuation state of the target channel, and stopping allocating the frequency resource corresponding to the second carrier frequency sub-band to the user.
Step S1084, restoring the target channel to the open state, and allowing the frequency resource corresponding to the target channel to be allocated to the user again.
Step S1085, re-allowing the frequency resource corresponding to the third carrier frequency sub-band to be allocated to the user.
Specifically, when determining the attenuation adjustment policy for the target channel, a preset interference handling threshold is first obtained, where the preset interference handling threshold includes: in this embodiment of the present invention, the first handling threshold may be understood as an interference handling threshold, and the second handling threshold may be understood as an interference stop handling threshold.
If the power level value of the target channel is not less than the first handling threshold, the interference is influenced on the communication, measures are needed to be taken to suppress the interference, namely, the target channel is closed, and meanwhile, the frequency resource corresponding to the target channel is stopped being allocated to the user; and if the power level value of the target channel is smaller than the first processing threshold and the target power level value of the second carrier frequency sub-band with the frequency intersection with the target channel is not smaller than the first identification threshold, not performing interference suppression on the target channel, namely maintaining the attenuation state of the target channel, and simultaneously stopping allocating the frequency resources corresponding to the second carrier frequency sub-band for the user. As can be known from the above description, the number of the second carrier frequency sub-bands having frequency intersection with the target channel is at most two, and any one of the second carrier frequency sub-bands satisfies the above condition, the step S1083 is executed, and the two comparison results between the power level value of the target channel and the first processing threshold are described above, provided that the target channel is in an on state, that is, in an unattenuated state, and it is required to determine whether the target channel needs to be closed according to the value of the power level value.
If the target channel is in the closed state, the power level value of the target channel needs to be compared with the second handling threshold, whether the target channel can be reopened or not is further confirmed, and if the power level value of the target channel is smaller than the second handling threshold, the target channel is restored to the non-inhibition state, that is, the target channel is switched from the closed state to the open state, and the frequency resource corresponding to the target channel is allowed to be allocated to the user again.
In addition, if the target power level value of the third carrier frequency sub-band marked as stopping the allocation of frequency resources to the user during the historical fading adjustment process is less than the second identification threshold, the allocation of frequency resources corresponding to the third carrier frequency sub-band to the user should be re-allowed.
In an optional embodiment, if the target communication frequency subband is not occupied, the power resource occupation value of the target communication frequency subband is 0; wherein the target communication frequency sub-band is any one of all communication frequency sub-bands.
The communication satellite interference suppression method provided in the embodiment of the present invention is described in detail above, and the operation and control system is used as an execution subject to determine the attenuation adjustment policy of the target channel, and for the above related functions, the operation and control system may also be implemented by other systems, for example, when determining the target carrier frequency subband, the operation and control system may also send the communication frequency usage information, the preset interference identification threshold, and the preset carrier noise floor of all carrier frequency subbands of the beam to be monitored to the carrier monitoring system, and the carrier monitoring system determines the target carrier frequency subband.
The embodiment of the invention also provides a communication satellite interference suppression system which comprises a measurement and control system, an operation and control system and a carrier monitoring system. Fig. 3 is a schematic diagram of a distributed control flow of a communication satellite interference suppression system according to an embodiment of the present invention. When the communication satellite interference suppression system operates, the operation control system of the communication satellite firstly transmits a carrier monitoring plan to the carrier monitoring system, the carrier monitoring plan comprises channel attenuation information of a beam to be monitored and communication frequency use information of the beam to be monitored, and information grasped by the carrier monitoring system, in addition to the carrier monitoring plan, grasps a preset interference identification threshold and preset carrier noise bottoms of all carrier frequency sub-bands of the beam to be monitored. And then, the carrier monitoring system carries out full-time full-band monitoring on the frequency power use condition in the beam to be monitored of the satellite user according to the carrier monitoring plan to obtain the power level values of all carrier frequency sub-bands of the beam to be monitored, and sends messages to the operation and control system based on the power level values of the carrier frequency sub-bands, the channel attenuation information of the beam to be monitored, the communication frequency use information of the beam to be monitored and the preset interference identification threshold, informs the target carrier frequency sub-band with the beam interference variation exceeding the preset variation range, and transmits and updates the real-time measurement value in real time.
Further, after receiving the message about the interference condition of the carrier monitoring system, the operation and control system sends a power estimation scheduling command of a target channel to the measurement and control system; after receiving a scheduling command sent by an operation and control system, a measurement and control system sends a channel power estimation remote control instruction of a target channel to a satellite; the satellite responds to the power estimation remote control instruction of the target channel, estimates the channel power of the target channel and sends an estimation result, namely a power level value of the target channel through remote measurement; the measurement and control system receives satellite telemetry to obtain a power evaluation result of the target channel and sends the result to the operation and control system.
Furthermore, the operation and control system combines the carrier monitoring to report the monitoring condition, the power evaluation result and the communication frequency use information, makes a channel attenuation adjustment strategy, the strategy comprises an adjusted channel and an attenuation suppression amplitude, updates the communication frequency use information according to the strategy and sends a scheduling command to the measurement and control system; the measurement and control system sends a channel attenuation adjustment remote control instruction to the satellite according to the scheduling command of the operation and control system, and replies an execution result to the operation and control system after the adjustment is in place; the operation control system receives the remote control execution result of the measurement and control system and sends an updated carrier monitoring plan to the carrier monitoring system; and after receiving the new carrier monitoring plan, the carrier monitoring system carries out full-time monitoring on the user beam carrier condition.
For convenience of understanding, a certain beam has no ground interference, users in the beam normally communicate in the whole frequency range of the beam, but the interference suddenly appears as an example in the following, wherein (1) the carrier monitoring system identifies that the certain beam has the interference, the interference frequency point falls into the ith carrier frequency sub-band, and the target power level value of the ith carrier frequency sub-band is greater than the first identification threshold, and sends a message notification to the operation and control system; (2) the operation control system sends a power estimation scheduling command of a target channel to the measurement and control system; (3) the measurement and control system sends a channel power estimation remote control instruction of a target channel to the satellite; (4) the satellite responds to the remote control command, completes the power estimation of the target channel and issues a result through remote measurement; (5) the measurement and control system receives satellite telemetry to obtain a power evaluation result of a target channel and sends the result to the operation and control system; (6) the operation and control system informs the measurement and control system of setting the attenuation suppression of the target channel to be the maximum value (closing the target channel) when finding that the power level value of the target channel is greater than a first disposal threshold, and stops allocating the frequency resource corresponding to the channel to the user; (7) the measurement and control system sends a remote control instruction to the satellite, the attenuation of a target channel is set to be the maximum value, and the finished receipt is sent to the operation and control system after the execution result is confirmed to be correct through remote measurement; (8) the operation control system updates the carrier monitoring plan and sends the updated carrier monitoring plan to the carrier monitoring system; (9) the carrier wave monitoring system updates the monitoring plan and develops full-time monitoring.
The channel attenuation information of the beam to be monitored is taken as { a }1,a2,a3,…,akThe power resource occupation value of n communication frequency sub-bands is
Figure BDA0002880693450000141
The carrier monitoring identifies that the target power level value of the ith carrier frequency sub-band is greater than a first identification threshold for example, (1) the operation and control system sends a power estimation scheduling command of a target channel to the measurement and control system; (2) the measurement and control system sends a channel power estimation remote control instruction of a target channel to the satellite; (3) the satellite responds to the remote control command, completes the power estimation of the target channel and issues a result through remote measurement; (4) the measurement and control system receives satellite telemetry to obtain a power evaluation result of a target channel and sends the result to the operation and control system; (5) the operation and control system finds that the ith carrier frequency sub-band falls into the g-th channel, the power level value of the g-th channel is smaller than a first disposal threshold, attenuation setting is not carried out on the g-th channel at the moment, and only the frequency resource corresponding to the ith frequency sub-band is stopped being allocated to the user; (6) the carrier monitoring system continues to monitor the spectrum.
In summary, in order to quickly respond to the burst interference and reduce the adverse effect of the interference on the system, the method for suppressing interference on a communication satellite according to the embodiments of the present invention can quickly and accurately perform an attenuation adjustment policy on a target channel by controlling the carrier monitoring system, the measurement and control system, and the operation and control system to cooperatively work and fully combining the communication frequency usage information of the beam to be monitored, the channel attenuation information of the beam to be monitored, the power level values of all carrier frequency subbands of the beam to be monitored, and the power level value of the target channel, so as to effectively alleviate the technical problem of low execution efficiency of the method for suppressing interference on a communication satellite in the prior art. In addition, the embodiment of the invention carries out interference suppression by taking the channel bandwidth as a unit, so that the interference suppression only aims at the frequency range where the interference occurs, the narrowband interference is flexibly coped with, and the spectrum utilization rate is improved.
Example two
The embodiment of the present invention further provides a communication satellite interference suppression apparatus, which is mainly used for executing the communication satellite interference suppression method provided in the first embodiment of the present invention, and the following describes the communication satellite interference suppression apparatus provided in the embodiment of the present invention in detail.
Fig. 4 is a functional block diagram of an apparatus for suppressing interference from a communication satellite according to an embodiment of the present invention, and as shown in fig. 4, the apparatus mainly includes: a first obtaining module 10, a first determining module 20, a second obtaining module 30, a second determining module 40, wherein:
a first obtaining module 10, configured to obtain communication frequency usage information of a beam to be monitored, channel attenuation information of the beam to be monitored, and power level values of all carrier frequency subbands of the beam to be monitored.
A first determining module 20 for determining a target carrier frequency subband from all carrier frequency subbands based on the communication frequency usage information and power level values of all carrier frequency subbands; and the beam interference variation of the target carrier frequency sub-band exceeds a preset variation range.
A second obtaining module 30, configured to obtain a power level value of the target channel having a frequency intersection with the target carrier frequency sub-band.
And a second determining module 40, configured to determine an attenuation adjustment strategy for the target channel based on the power level value of the target channel and the channel attenuation information.
The interference suppression method for the communication satellite in the prior art depends heavily on the experience and judgment capability of post personnel, and the time from the occurrence of interference of a system to the response of the system is long, so that the execution efficiency of the method is low. Compared with the prior art, the communication satellite interference suppression device provided by the embodiment of the invention firstly monitors the power level values of all carrier frequency sub-bands of the beam to be monitored in real time, can preliminarily determine the target carrier frequency sub-band of which the beam interference variation exceeds the preset variation range by combining the communication frequency use information, then further obtains the power level value of the target channel of which the frequency intersection exists with the target carrier frequency sub-band, and finally determines the attenuation adjustment strategy of the target channel according to the power level value of the target channel and the channel attenuation information. The device of the invention has no manual intervention in the using process, can quickly respond to the burst interference, reduces the adverse effect of the interference on the system, and effectively relieves the technical problem of low execution efficiency of the communication satellite interference suppression method in the prior art.
Optionally, the communication frequency usage information includes: communication frequency sub-band division information and a power resource occupation value of each communication frequency sub-band.
The first determining module 20 is specifically configured to:
acquiring a preset interference identification threshold and preset carrier noise bottoms of all carrier frequency sub-bands of a beam to be monitored; wherein, predetermine the interference identification threshold and include: the device comprises a first identification threshold and a second identification threshold, wherein the first identification threshold is larger than the second identification threshold.
Determining a target power level value of the first carrier frequency sub-band based on the power level value of the first carrier frequency sub-band, a preset carrier noise floor of the first carrier frequency sub-band and a power resource occupation value of a communication frequency sub-band with a frequency intersection with the first carrier frequency sub-band; wherein the first carrier frequency sub-band represents any one of all carrier frequency sub-bands.
And if the target power level value of the first carrier frequency sub-band is not less than the first identification threshold, or the target power level value of the first carrier frequency sub-band is less than the second identification threshold, taking the first carrier frequency sub-band as the target carrier frequency sub-band.
Optionally, the second determining module 40 is specifically configured to:
acquiring a preset interference handling threshold; wherein, the preset interference handling threshold comprises: a first handling threshold and a second handling threshold, the first handling threshold being greater than the second handling threshold.
And if the power level value of the target channel is not less than the first handling threshold, closing the target channel and stopping allocating the frequency resources corresponding to the target channel for the user.
Optionally, the second determining module 40 is further configured to:
and if the power level value of the target channel is smaller than the first processing threshold and the target power level value of the second carrier frequency sub-band with the frequency intersection with the target channel is not smaller than the first identification threshold, maintaining the attenuation state of the target channel and stopping allocating the frequency resources corresponding to the second carrier frequency sub-band for the user.
Optionally, the second determining module 40 is further configured to:
and if the target channel is in a closed state and the power level value of the target channel is smaller than the second handling threshold, restoring the target channel to an open state and allowing the frequency resource corresponding to the target channel to be allocated to the user again.
Optionally, the second determining module 40 is further configured to:
and if the target power level value of the third carrier frequency sub-band marked as stopping allocating the frequency resources for the user is less than the second identification threshold, re-allowing the frequency resources corresponding to the third carrier frequency sub-band to be allocated for the user.
Optionally, if the target communication frequency sub-band is not occupied, the power resource occupation value of the target communication frequency sub-band is 0; wherein the target communication frequency sub-band is any one of all communication frequency sub-bands.
EXAMPLE III
Referring to fig. 5, 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, wherein the processor 60, the communication interface 63 and the memory 61 are connected through 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) and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 63 (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network, and the like can be used.
The bus 62 may be an ISA bus, PCI bus, EISA bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 5, but this does not indicate only one bus or one type of bus.
The memory 61 is used for storing a program, the processor 60 executes the program after receiving an execution instruction, and the method executed by the apparatus defined by the flow 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 circuits of hardware or instructions in the form of software in the processor 60. The Processor 60 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the device can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. The various methods, steps and logic blocks disclosed 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 directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is 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 above method.
The method, the apparatus, and the computer program product for suppressing communication satellite interference provided in the embodiments of the present invention include a computer-readable storage medium storing a non-volatile program code executable by a processor, where instructions included in the program code may be used to execute the method described in the foregoing method embodiments, and specific implementation may refer to the method embodiments, and are not described herein again.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into 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 such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute 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), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the 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 otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (5)

1. A method for suppressing interference from a communication satellite, comprising:
acquiring communication frequency use information of a beam to be monitored, channel attenuation information of the beam to be monitored and power level values of all carrier frequency sub-bands of the beam to be monitored;
determining a target carrier frequency sub-band from among the all carrier frequency sub-bands based on the communication frequency usage information and the power level values of the all carrier frequency sub-bands; the beam interference variation of the target carrier frequency sub-band exceeds a preset variation range;
acquiring a power level value of a target channel with frequency intersection with the target carrier frequency sub-band;
determining an attenuation adjustment strategy for the target channel based on the power level value of the target channel and the channel attenuation information;
wherein the communication frequency usage information includes: communication frequency sub-band division information and a power resource occupation value of each communication frequency sub-band;
determining a target carrier frequency subband from among said all carrier frequency subbands based on said communication frequency usage information and power level values of said all carrier frequency subbands, comprising:
acquiring a preset interference identification threshold and preset carrier noise bottoms of all carrier frequency sub-bands of the beam to be monitored; wherein, the presetting of the interference identification threshold comprises: the method comprises the steps that a first identification threshold and a second identification threshold are obtained, and the first identification threshold is larger than the second identification threshold;
determining a target power level value of a first carrier frequency sub-band based on a power level value of the first carrier frequency sub-band, a preset carrier noise floor of the first carrier frequency sub-band and a power resource occupation value of a communication frequency sub-band with a frequency intersection with the first carrier frequency sub-band; wherein the first carrier frequency sub-band represents any one of all carrier frequency sub-bands;
if the target power level value of the first carrier frequency sub-band is not less than the first identification threshold, or the target power level value of the first carrier frequency sub-band is less than the second identification threshold, taking the first carrier frequency sub-band as the target carrier frequency sub-band;
wherein determining an attenuation adjustment policy for the target channel based on the power level value of the target channel and the channel attenuation information comprises:
acquiring a preset interference handling threshold; wherein the preset interference handling threshold comprises: a first handling threshold and a second handling threshold, the first handling threshold being greater than the second handling threshold;
if the power level value of the target channel is not less than the first handling threshold, closing the target channel and stopping allocating the frequency resource corresponding to the target channel for the user;
if the power level value of the target channel is smaller than the first processing threshold and the target power level value of a second carrier frequency sub-band with frequency intersection with the target channel is not smaller than the first identification threshold, maintaining the attenuation state of the target channel and stopping allocating frequency resources corresponding to the second carrier frequency sub-band for the user;
if the target channel is in a closed state and the power level value of the target channel is smaller than the second handling threshold, restoring the target channel to an open state and allowing the frequency resource corresponding to the target channel to be allocated to the user again;
and if the target power level value of the third carrier frequency sub-band marked as stopping allocating the frequency resources for the user is smaller than the second identification threshold, re-allowing the frequency resources corresponding to the third carrier frequency sub-band to be allocated for the user.
2. The method of claim 1, wherein if a target communication frequency sub-band is not occupied, the power resource occupation value of the target communication frequency sub-band is 0; wherein the target communication frequency sub-band is any one of all communication frequency sub-bands.
3. A communication satellite interference suppression apparatus, comprising:
a first obtaining module, configured to obtain communication frequency usage information of a beam to be monitored, channel attenuation information of the beam to be monitored, and power level values of all carrier frequency subbands of the beam to be monitored;
a first determining module for determining a target carrier frequency subband from said all carrier frequency subbands based on said communication frequency usage information and power level values of said all carrier frequency subbands; the beam interference variation of the target carrier frequency sub-band exceeds a preset variation range;
a second obtaining module, configured to obtain a power level value of a target channel having a frequency intersection with the target carrier frequency sub-band;
a second determining module, configured to determine an attenuation adjustment policy of the target channel based on the power level value of the target channel and the channel attenuation information;
wherein the communication frequency usage information includes: communication frequency sub-band division information and a power resource occupation value of each communication frequency sub-band;
the first determining module is specifically configured to:
acquiring a preset interference identification threshold and preset carrier noise bottoms of all carrier frequency sub-bands of the beam to be monitored; wherein, the presetting of the interference identification threshold comprises: the method comprises the steps that a first identification threshold and a second identification threshold are obtained, and the first identification threshold is larger than the second identification threshold;
determining a target power level value of a first carrier frequency sub-band based on a power level value of the first carrier frequency sub-band, a preset carrier noise floor of the first carrier frequency sub-band and a power resource occupation value of a communication frequency sub-band with a frequency intersection with the first carrier frequency sub-band; wherein the first carrier frequency sub-band represents any one of all carrier frequency sub-bands;
if the target power level value of the first carrier frequency sub-band is not less than the first identification threshold, or the target power level value of the first carrier frequency sub-band is less than the second identification threshold, taking the first carrier frequency sub-band as the target carrier frequency sub-band;
the second determining module is specifically configured to:
acquiring a preset interference handling threshold; wherein the preset interference handling threshold comprises: a first handling threshold and a second handling threshold, the first handling threshold being greater than the second handling threshold;
if the power level value of the target channel is not less than the first handling threshold, closing the target channel and stopping allocating the frequency resource corresponding to the target channel for the user;
if the power level value of the target channel is smaller than the first processing threshold and the target power level value of a second carrier frequency sub-band with frequency intersection with the target channel is not smaller than the first identification threshold, maintaining the attenuation state of the target channel and stopping allocating frequency resources corresponding to the second carrier frequency sub-band for the user;
if the target channel is in a closed state and the power level value of the target channel is smaller than the second handling threshold, restoring the target channel to an open state and allowing the frequency resource corresponding to the target channel to be allocated to the user again;
and if the target power level value of the third carrier frequency sub-band marked as stopping allocating the frequency resources for the user is smaller than the second identification threshold, re-allowing the frequency resources corresponding to the third carrier frequency sub-band to be allocated for the user.
4. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the method of any of claims 1 to 2 when executing the computer program.
5. A computer-readable medium having non-volatile program code executable by a processor, the program code causing the processor to perform the method of any of claims 1 to 2.
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