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CN-122026990-A - Airborne satellite communication-in-motion method and system for dynamic pre-allocation of satellite channel resources

CN122026990ACN 122026990 ACN122026990 ACN 122026990ACN-122026990-A

Abstract

The invention discloses an airborne satellite communication-in-motion method and system for dynamic pre-allocation of satellite channel resources, and belongs to the field of airborne satellite communication-in-motion. The method adopts a dynamic pre-allocation method driven by task demands, realizes the application, allocation, occupation, release, recovery and other automatic management of satellite channel resources in the whole process of ensuring the flight tasks through management and control signaling interaction, applies for and pre-allocates the in-place channel resources in a pre-ensuring stage, establishes forward and backward FDMA/MCPC satellite links in a direct ensuring stage, completes the real-time transmission of comprehensive services through exclusive channels in the flight tasks, and releases and recovers the satellite channel resources in time after the task ensuring is finished. The invention adopts a satellite channel resource demand reporting and response system, and realizes the automatic management of satellite channel resources in the whole flight task guarantee process through the management and control signaling interaction among a demand reporting client, a demand response server, a ground master station and an on-board satellite communication-in-motion earth station.

Inventors

  • LI SHAOBIN

Assignees

  • 中国电子科技集团公司第五十四研究所

Dates

Publication Date
20260512
Application Date
20260128

Claims (7)

  1. 1. An airborne satellite communication-in-motion method for dynamically pre-distributing satellite channel resources is characterized by comprising the following steps: In the step 1, the method comprises the following steps, the crew receives after the flight support task, the flight support system, making a satellite communication guarantee demand plan; Step 2, in a pre-guarantee stage, a machine service guarantee personnel fills a satellite channel resource demand form in a demand reporting client according to a satellite communication guarantee demand plan, and the demand reporting client converts the satellite channel resource demand form into demand parameter data; Step 3, the demand reporting client checks the demand parameter data, and the demand parameter data passing the check is stored in a local database of the demand reporting client; Step 4, the machine service support personnel submits a satellite channel resource demand form on line, and the demand report client sends demand parameter data to the demand response server in the form of demand report request signaling information; step 5, after receiving the demand parameter data, the demand response server generates a demand report response signaling message, and returns the demand report response signaling message to the demand report client; Step 6, the demand response server sends a satellite resource state query request signaling message to the operation control center in real time, the operation control center feeds back the satellite resource state query response signaling message in real time, and after receiving the satellite resource state query response signaling message, the demand response server generates a satellite channel resource allocation scheme according to demand parameter data and satellite channel resource states, verifies the satellite channel resource allocation scheme through simulation, and stores parameter data of the satellite channel resource allocation scheme into a local database; Step 7, the demand response server generates a satellite channel resource reservation request signaling message containing satellite channel resource allocation scheme parameter data and sends the satellite channel resource reservation request signaling message to the operation control center; Step 8, after receiving the satellite channel resource reservation response signaling message, the demand response server generates a satellite channel resource allocation signaling message containing satellite channel resource allocation scheme parameter data and sends the satellite channel resource allocation signaling message to the demand report client; Step 9, the demand report client generates working parameter data of a forward link and a return link for the ground master station and the on-board satellite communication-in-motion earth station respectively according to satellite channel resource allocation scheme parameter data, sends the working parameter data of the forward link and the return link of the ground master station to in-station equipment monitoring of the ground master station in a link parameter down signaling message form, and sends the working parameter data of the forward link and the return link of the on-board satellite communication-in-motion earth station to parameter loading equipment of the on-board satellite communication-in-motion earth station in a link parameter down signaling message form; Step 10, after monitoring and receiving a link parameter down signaling message from a demand report client, in-site equipment of a ground master station replies a response signaling message to the demand report client; the in-station equipment monitors and distributes forward link and backward link working parameters to channel terminal equipment and business terminal equipment serving an on-board satellite communication-in-motion earth station, and adds the working parameters to a reserved service scheduling queue monitored by the in-station equipment; Step 11, after receiving the link parameter down signaling message from the demand report client, the parameter loading device replies the response signaling message to the demand report client, the parameter loading device generates a link parameter filling request signaling message and automatically sends the link parameter filling request signaling message to the on-board satellite on-board earth station or informs a machine service guarantee personnel to manually fill the on-board satellite on-board earth station, and after receiving the link parameter filling request signaling message, the on-board satellite on-board earth station completes the sending and configuration of the working parameters of a forward link and a return link and replies the signaling message of completion of link parameter filling to the parameter loading device.
  2. 2. The method for dynamically pre-allocating on-board satellite communication in accordance with claim 1, wherein in step 1, the satellite communication guarantee requirement plan comprises the identification, the working frequency band, the transceiving capability, the rate bandwidth requirement, the service transmission requirement, the channel error rate requirement, the service quality, the task start time and end time, and the task geographical area range of the on-board satellite communication on-board earth station and the satellite ground master station.
  3. 3. The method according to claim 1, wherein in step 3, the checked contents include whether the parameters are complete, whether the formats are correct, and whether the values are within a preset range.
  4. 4. The method of claim 1, wherein in step 6, the content of the satellite resource status inquiry response signaling message includes the remaining frequency bands and power of the available satellites and transponders, and the parameter data of the satellite channel resource allocation scheme includes the ephemeris, beams, and transponders of the service satellites, the carrier transmitting and receiving center frequency points, frequency bandwidths, channel rates, modulation coding schemes, transmitting power, receiving demodulation threshold power levels, and signal to noise ratios of the forward link and the reverse link, start time, and end time.
  5. 5. An on-board satellite communication-in-motion method for dynamic pre-allocation of satellite channel resources according to claim 1, further comprising: Step 12, in the direct guarantee stage, the operation control center starts satellite channel resources from the service scheduling queue according to reservation, and the demand response service end and the operation control center interact satellite channel resource monitoring data used by tasks in real time and complete statistical analysis; Step 13, the on-board satellite in-motion earth station is powered on, and establishes forward and backward FDMA/MCPC satellite links with channel terminal equipment and service terminals serving the on-board satellite in the ground master station; Step 14, in the guarantee stage of the task, the point-to-point FDMA/MCPC satellite links between the on-board satellite communication-in-motion earth station and the channel terminal equipment and the service terminals serving the on-board satellite communication-in-motion earth station are always continuous, the satellite channel resources are continuously dedicated, and the real-time transmission of bidirectional voice, data, video and image services is completed between the space and the ground through the satellite links; step 15, in the recovery and restoration guarantee stage after the task, the unloading of the task data is completed through a satellite link, the forward satellite link and the backward satellite link are removed, the on-board satellite on-the-fly earth station is powered off, and the channel terminal equipment and the service terminal which serve the corresponding on-board satellite on-the-fly earth station in the ground master station stop serving; The machine service support personnel confirms that satellite channel resource requirements are finished in a requirement reporting client, the requirement reporting client sends a satellite channel resource release request signaling message to a requirement response server, the requirement response server receives the satellite channel resource release request signaling message and then sends a satellite channel resource recovery request signaling message to a control center, the control center recovers satellite channel resources to an idle satellite resource pool after receiving the satellite channel resource recovery request signaling message, a satellite resource state database is updated and sends a response signaling message that the satellite channel resources are recovered to the requirement response server, the requirement response server receives the response signaling message that the satellite channel resources are recovered, returns a response signaling message that the satellite channel resources are released to the requirement reporting client, and the requirement reporting client receives the response signaling message that the satellite channel resources are released and then completes satellite channel resource release confirmation and adds satellite channel resource allocation scheme data to a history record database.
  6. 6. An on-board satellite communication-in-motion system for dynamic pre-allocation of satellite channel resources, comprising: the communication satellite of the space section is used for providing a communication relay forwarding function for a satellite ground main station of the user section and an on-board satellite communication-in-motion earth station in the beam coverage service area; The satellite ground master station of the user section comprises a plurality of channels of terminal equipment and a plurality of channels of service terminal equipment, wherein each channel of terminal equipment and each service terminal equipment serve a single airborne satellite communication-in-motion earth station; The on-board satellite communication-in-motion earth station of the user section is used for providing access and transmission services of voice, data, video and image services for on-board users; The forward link and the backward link between the satellite ground main station and the on-board satellite communication-in-motion earth station adopt FDMA/MCPC multiple access modes, and are used for providing point-to-point bidirectional voice, data, video and image service transmission services between space-ground users; The satellite channel resource demand reporting and response system of the control section is used for dynamically applying and distributing satellite channel resources before a task, monitoring and statistically analyzing the satellite channel resources in the task, and releasing and recovering the satellite channel resources after the task; The operation control center of the control section is used for unified management and control of satellite resources; when the system is in operation, the method according to any one of claims 1-5 is performed.
  7. 7. The on-board satellite communication-in-motion system for dynamic pre-allocation of satellite channel resources according to claim 6, wherein the satellite channel resource demand reporting and response system of the control section comprises a demand reporting client and a demand response server; the signaling message interaction of the two parties is realized between the demand reporting client and the demand response server through a wired or wireless management and control channel; The signaling message interaction between the demand response server and the operation control center is realized through a wired or wireless control channel; The method comprises the steps that signaling message interaction under link parameters of a client and in-station equipment monitoring of a satellite ground master station and parameter loading equipment of an on-board satellite on-the-fly earth station are respectively realized through wired or wireless management and control channels, and link parameter filling signaling message interaction of the client and the on-board satellite on-the-fly earth station is realized through wired or wireless management and control channels.

Description

Airborne satellite communication-in-motion method and system for dynamic pre-allocation of satellite channel resources Technical Field The invention belongs to the field of satellite communication, in particular to the field of airborne satellite communication in motion, and particularly relates to an airborne satellite communication in motion method and system for dynamic pre-allocation of satellite channel resources. Background The widely applied manned or unmanned special aircraft is a manned or unmanned aviation aircraft specially modified or designed for executing specific tasks, and the special aircraft is scarce, small in quantity and delicate, and small in scale for executing tasks in a running mode. The flight mission guarantee of the special aircraft is customized completely around the unique requirement of the special mission, is a comprehensive support system for guaranteeing the smooth completion of the full life cycle of the aircraft after the aircraft is recovered from mission preparation to flight implementation to mission completion, and covers a plurality of stages before, during and after the mission. The pre-task stage comprises a pre-guarantee stage 2-24 hours before taking off, a direct guarantee stage 30-2 hours before taking off, a guarantee stage in the task in the process of taking off to landing, and a recovery and recovery guarantee stage after landing to a shutdown. The communication guarantee is one of the core contents of the flight mission guarantee, the demand on the on-board satellite communication-in-motion system is the point-to-point two-way voice, data, video, image and other comprehensive service transmission between the air and the ground, the demand on the reliability of the service transmission guarantee is high, and the application characteristics are that: (1) The method comprises the steps of applying for and distributing in-place satellite channel resources in a pre-guarantee stage, completing communication inspection of a satellite link in a direct guarantee stage and completing data loading through the satellite link, using the satellite link to carry out real-time transmission of the comprehensive service in a task guarantee stage, using the satellite link to complete data unloading in a post-task recovery and recovery guarantee stage, and terminating the use of the satellite link after task guarantee is finished; (2) A point-to-point special bidirectional satellite link is established between an on-board satellite communication-in-motion earth station and a satellite ground master station to serve the flight task guarantee, the communication relation between the air and the ground is fixed, the transmitted service type and the speed broadband demand are basically fixed, the service volume fluctuation is not large, the communication demand is basically unchanged, and the satellite channel does not need to be dynamically adjusted during the guarantee period; (3) The satellite channel resources are not used continuously all-weather by the on-board satellite communication-in-motion earth station, but are dynamically triggered by the driving of flight task guarantee requirements, namely, the satellite channel resources are allocated in place before the task starts to establish a satellite link between the air and the ground, the satellite link is always continuous and continuously exclusive to the channel resources in the task process, the satellite link is removed after the task ends, the satellite channel resources are immediately released and recovered, and a user does not need to fixedly occupy the satellite channel resources for a long time. The satellite channel resource management mode of manual planning and fixed pre-allocation has the problems of complicated application and allocation flow, heavy manual burden, untimely guarantee response and the like, and long-term fixed occupation causes that resources cannot be automatically scheduled and dynamically circulated among users, has low utilization efficiency, has double contradiction and pressure of resource waste and resource deficiency, and cannot adapt to the application requirements of the on-board satellite communication-in-motion system, so that the satellite channel resource management mode capable of matching the flight task guarantee characteristics is needed. The FDMA frequency division multiple access scheme divides the available frequency band resources of a communication satellite transponder into a plurality of mutually non-overlapping satellite channels and allocates the channels to each satellite earth station user in the network for use. Compared with other multiple access modes, the method has the advantages of mature technology, simple and reliable equipment, high link synchronization speed, simplicity and reliability in maintenance, strong guarantee, good adaptability to a communication-in-motion platform, low satellite channel transmission cost, high efficiency, low requirements on an