Satellite-ground control information acquisition method and device, storage medium and computer program product

Abstract

The invention discloses a satellite-ground control information acquisition method and device, a storage medium and a computer program product, and the method comprises the steps: receiving the configuration information of a ground network device through an on-satellite terminal device, and monitoring a first channel according to the configuration information; wherein the first channel is used for transmitting scheduling information of satellite-ground control information; and acquiring satellite-ground control information transmitted on the corresponding second channel according to the configuration information and the scheduling information. The scheduling information of the satellite-ground control information can be monitored according to the configuration information, so that even if the satellite-ground control information is updated in real time, the scheduling information can be accurately acquired, and the transmission channel of the satellite-ground control information can be quickly known according to the scheduling information; the satellite-ground control information can be acquired by the satellite-ground terminal equipment without performing a complete wireless access process, so that the transmission delay of the satellite-ground control information is reduced, and the satellite-ground terminal can quickly acquire the satellite-ground control information.

Description

Technical Field

[0001] The present invention relates to the field of communications, and in particular to a method, device, storage medium and computer program product for acquiring satellite-to-ground control information. Background Art

[0002] The satellite-to-ground communication system includes satellites and ground systems. In order to meet the business needs of satellite beam scheduling and adaptation to dynamic changes under the satellite under the transparent forwarding architecture, the existing technology controls the beam switching on the satellite through the ground base station, such as Figure 1 As shown in the figure, there are two commonly used ground-controlled satellite beam-hopping resource management technologies. The first is the out-of-band beam control technology. The base station transmits the calculated beam control pattern to the satellite control network through the interface between the base station and the satellite control network, and then the satellite control network injects it to the satellite through the measurement and control link. The second is the in-band beam control technology. The satellite is equipped with a NTN (Non-Terrestrial Network) lightweight terminal, which is responsible for receiving the beam control signaling transmitted by the base station in real time. The NTN terminal on the satellite needs to access the base station and receive the signaling through the feeder link to obtain the beam control information.

[0003] However, due to the periodic pattern injection of out-of-band beam control technology, the beam control information is not updated in real time according to the network status. The beam control accuracy is lower than that of in-band beam control technology. It is suitable for scenarios with less beam switching requirements and low beam control switching accuracy requirements. Although in-band beam control technology can update beam control signaling in real time, and the beam control accuracy meets the needs of more complex scenarios, under the existing in-band beam control technology architecture, the on-board NTN terminal needs to perform a complete wireless access process, including cell search, random access and other processes. Since low-orbit satellites will move with the orbit, the on-board terminal will enter different signal gateway (base station) connection areas with the movement of the satellite, and there will be frequent switching of the on-board terminal, frequent disconnection, and connection reconstruction. The cumbersome steps of the on-board NTN terminal's own access process will increase the transmission delay of the beam control signaling, resulting in the on-board NTN terminal taking a long time to obtain beam control information. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a method, device, storage medium and computer program product for obtaining satellite-to-ground control information, which can not only realize the real-time update of satellite-to-ground control information, but also avoid the on-board terminal from performing a complete wireless access process, reduce the transmission delay of the satellite-to-ground control information, and the on-board terminal can quickly obtain the satellite-to-ground control information.

[0005] To achieve the above object, an embodiment of the present invention provides a method for acquiring satellite-ground control information, which is applied to an on-board terminal device. The method includes:

[0006] Receive configuration information of ground network equipment;

[0007] Monitoring a first channel according to the configuration information; wherein the first channel is used to transmit scheduling information of satellite-to-ground control information;

[0008] Acquire scheduling information transmitted on the first channel;

[0009] According to the configuration information and the scheduling information, satellite-to-ground control information transmitted on the corresponding second channel is acquired.

[0010] As an improvement of the above solution, the configuration information includes information of the beam to be monitored, a target scrambling identifier and a target search space.

[0011] As an improvement of the above solution, monitoring the first channel according to the configuration information includes:

[0012] Determine a target beam for transmitting the scheduling information according to the beam information to be monitored;

[0013] A first channel is monitored on the target beam.

[0014] As an improvement of the above solution, the acquiring the satellite-to-ground control information transmitted on the corresponding second channel according to the configuration information and the scheduling information includes:

[0015] parsing the scheduling information in the target search space using the target scrambling identifier to obtain second channel information for transmitting the satellite-to-ground control information;

[0016] Acquire satellite-to-ground control information transmitted on the second channel.

[0017] As an improvement of the above scheme, the beam information to be monitored includes the frequency band information of the feeder link and / or the port information corresponding to the beam; the target scrambling identifier is selected from the temporary identifier of the wireless network on the ground; and the target search space is a special search space.

[0018] As an improvement of the above solution, the ground network device sends the configuration information when an event triggering condition is met; wherein the event triggering condition includes at least one of the following:

[0019] The first satellite mission accessing a non-terrestrial network area was detected;

[0020] An update to the configuration information was detected.

[0021] As an improvement of the above solution, the first channel is a physical downlink control channel, and the second channel is a physical downlink shared channel.

[0022] To achieve the above object, an embodiment of the present invention further provides a satellite-to-ground control information acquisition method, which is applied to a ground network device. The method includes:

[0023] Sending configuration information; wherein the configuration information is used to instruct the on-board terminal device to monitor the first channel according to the configuration information, and the first channel is used to transmit scheduling information of satellite-to-ground control information;

[0024] transmitting scheduling information on the first channel;

[0025] The satellite-to-ground control information is transmitted on the second channel, so that the network device acquires the satellite-to-ground control information according to the configuration information and the scheduling information.

[0026] As an improvement of the above solution, the sending of configuration information includes:

[0027] The configuration information is sent when an event triggering condition is met; wherein the event triggering condition includes at least one of the following:

[0028] The first satellite mission accessing a non-terrestrial network area was detected;

[0029] An update to the configuration information was detected.

[0030] To achieve the above object, an embodiment of the present invention further provides an on-board terminal device, including:

[0031] A configuration information receiving module, used to receive configuration information of ground network equipment;

[0032] A first channel monitoring module, configured to monitor a first channel according to the configuration information; wherein the first channel is used to transmit scheduling information of satellite-to-ground control information;

[0033] A scheduling information acquisition module, used to acquire scheduling information transmitted on the first channel;

[0034] The satellite-ground control information acquisition module is used to acquire the satellite-ground control information transmitted on the corresponding second channel according to the configuration information and the scheduling information.

[0035] To achieve the above object, an embodiment of the present invention further provides a network device, including:

[0036] A configuration information sending module, used to send configuration information; wherein the configuration information is used to instruct the on-board terminal device to monitor the first channel according to the configuration information, and the first channel is used to transmit scheduling information of satellite-to-ground control information;

[0037] A scheduling information sending module, used for transmitting scheduling information on the first channel;

[0038] The satellite-ground control information sending module is used to transmit the satellite-ground control information on the second channel, so that the network device obtains the satellite-ground control information according to the configuration information and the scheduling information.

[0039] To achieve the above objectives, an embodiment of the present invention further provides a satellite-to-ground control information acquisition device, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein when the processor executes the computer program, the satellite-to-ground control information acquisition method as described in any of the above embodiments is implemented.

[0040] To achieve the above objectives, an embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored computer program, wherein when the computer program is running, the device where the computer-readable storage medium is located is controlled to execute the satellite-to-ground control information acquisition method as described in any of the above embodiments.

[0041] To achieve the above objective, an embodiment of the present invention further provides a computer program product, including computer instructions, which, when executed by a processor, implement the satellite-to-ground control information acquisition method as described in any of the above embodiments.

[0042] Compared with the prior art, the satellite-to-ground control information acquisition method, device, storage medium and computer program product disclosed in the present invention, the satellite terminal device receives the configuration information of the ground network device, and monitors the first channel according to the configuration information; wherein the first channel is used to transmit the scheduling information of the satellite-to-ground control information; then the satellite-to-ground control information transmitted on the corresponding second channel is acquired according to the configuration information and the scheduling information. Since the scheduling information of the satellite-to-ground control information can be monitored according to the configuration information, even if the satellite-to-ground control information is updated in real time, the scheduling information can be accurately acquired, and then the transmission channel of the satellite-to-ground control information can be quickly known according to the scheduling information, so that the satellite terminal device does not need to perform a complete wireless access process to acquire the satellite-to-ground control information, thereby reducing the transmission delay of the satellite-to-ground control information, and the satellite terminal can quickly acquire the satellite-to-ground control information. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is an interactive schematic diagram of beam switching on a ground base station control satellite provided by the prior art;

[0044] Figure 2 is a flow chart of a first satellite-to-ground control information acquisition method provided by an embodiment of the present invention;

[0045] Figure 3 is a transmission flow chart of configuration parameters provided by an embodiment of the present invention;

[0046] Figure 4It is a schematic diagram of information interaction between a ground network device and an onboard terminal device provided by an embodiment of the present invention;

[0047] Figure 5 is a flow chart of a second satellite-to-ground control information acquisition method provided by an embodiment of the present invention;

[0048] Figure 6 is a structural block diagram of an on-board terminal device provided by an embodiment of the present invention;

[0049] Figure 7 is a structural block diagram of a ground network device provided by an embodiment of the present invention;

[0050] Figure 8 It is a structural block diagram of a satellite-to-ground control information acquisition device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] The on-board terminal device described in the embodiment of the present invention is an on-board NTN terminal, for example, the on-board terminal device is a satellite.

[0053] The ground network device described in the embodiment of the present invention is a ground NTN network device, such as the ground network device can be an evolved base station (Evolved Node B, eNB or eNodeB) in a Long Term Evolution (LTE) system, or a next generation radio access network (NG RAN) device, or a base station (gNB) in an NR system, or a wireless controller in a cloud radio access network (CRAN), or can be a relay station, access point, vehicle-mounted device, wearable device, hub, switch, bridge, router, or a network device in a future evolved public land mobile network (PLMN), etc.

[0054] See also Figure 2 , Figure 21 is a flow chart of a first satellite-to-ground control information acquisition method provided by an embodiment of the present invention. The first satellite-to-ground control information acquisition method is applied to an onboard terminal device. The method includes:

[0055] S11, receiving configuration information of ground network equipment;

[0056] S12. Monitoring a first channel according to the configuration information; wherein the first channel is used to transmit scheduling information of satellite-to-ground control information;

[0057] S13. Acquire scheduling information transmitted on the first channel;

[0058] S14. Acquire satellite-to-ground control information transmitted on a corresponding second channel according to the configuration information and the scheduling information.

[0059] Specifically, in step S11, the configuration information of the ground network device is received; wherein the configuration information is sent by the ground network device to the satellite control center, and then transparently forwarded by the satellite control center and the satellite platform to reach the on-board terminal device.

[0060] For example, see Figure 3 , Figure 3 The following is a flow chart of the transmission of configuration parameters provided by an embodiment of the present invention, including the following steps:

[0061] Step 1. The ground network equipment plans the configuration information of satellite-ground interaction according to the network resources;

[0062] Step 2. The ground network device transmits the configuration information to the satellite control center through the Yn interface;

[0063] Step 3. The satellite control center uploads the configuration information to the satellite platform;

[0064] Step 4. The satellite platform sends the configuration information to the onboard terminal device;

[0065] Step 5. The onboard terminal device saves the configuration information until new configuration information is uploaded, and then uses the configuration information to monitor the first channel each time the satellite accesses the area of ​​the ground tracking and control station (such as the NTN base station).

[0066] Specifically, the configuration information includes:

[0067] 1) Information of the beam to be monitored;

[0068] Exemplarily, the information of the beam to be monitored includes the frequency band information of the feeder link and / or the port information corresponding to the beam; different frequency bands correspond to different beams. The beam to be monitored is the beam selected by the ground network device for satellite-to-ground control information transmission. The onboard terminal device can distinguish them according to the corresponding port and feeder frequency band. For example, "monitoring beam 2" corresponds to the onboard terminal device, which can be specifically monitored at the frequency (i.e., frequency band information) moved on the feeder link of beam 2. After acquiring the interactive information beam, the onboard terminal device only monitors the first channel on this beam.

[0069] 2) Target scrambling identification;

[0070] Exemplarily, the target scrambling identifier is selected from the ground radio network temporary identifier C-RNT I (Ce l l-Radio Network Temporary Ident ifi er). C-RNT I has a large range and can be one randomly assigned by many base stations, but the target scrambling identifier is selected from C-RNT I as a fixed identifier, and the selected target scrambling identifier can be referred to as GC-RNT I (Groud Control-RNT I). For example, any fixed value between 0-FFEF (C-RNT I value range) can be used for ground network equipment to scramble the transmission of planetary control information. It is worth noting that GC-RNT I is a UE-level RNT I, which is only used by NTN terminals on the satellite.

[0071] 3) Target search space;

[0072] Exemplarily, the target search space is a special search space (UE specific Search Space, USS). A new PDCCH (Physical Downlink Control Channel) search space type Type 4 is added in NR NTN. The target search space is a UE specific search space, which uses GC-RNTI to perform CRC (Cyc lic redundancy check) of PDCCH, and is used for on-board terminal equipment to monitor the scheduling information of the downlink planetary control information, and this process does not need to be configured through RRC (Radio Resource Control protocol) signaling.

[0073] Furthermore, the configuration information can be manually configured by the staff in the initial stage, and can be manually updated or automatically updated in the subsequent update stage. All configuration information can be manually updated. The beam to be monitored can be automatically updated by the ground network equipment. When it is detected that the transmission performance of the beam is poor, switch to another beam with good transmission performance to complete the automatic update of the beam to be monitored.

[0074] Furthermore, the ground network device sends the configuration information when an event triggering condition is met; wherein the event triggering condition includes at least one of the following:

[0075] The first satellite mission accessing a non-terrestrial network area was detected;

[0076] An update to the configuration information was detected.

[0077] Exemplarily, when the ground network device detects that a satellite accessing the non-terrestrial network NTN area uses the target beam to perform a mission for the first time, or detects an update of the configuration information (manual update or automatic update), it determines that the event trigger condition is met and sends the last sent configuration information or the updated configuration information.

[0078] In an embodiment of the present invention, the ground network equipment has a configuration information planning function for satellite-ground interaction, and can automatically or manually update the configuration information, so that the on-board terminal equipment can accurately know the target beam that needs to be monitored based on the configuration information.

[0079] Specifically, in step S12, monitoring the first channel according to the configuration information includes: determining a target beam for transmitting the scheduling information according to the beam information to be monitored; and monitoring the first channel on the target beam.

[0080] Exemplarily, the first channel is a physical downlink control channel PDCCH, and the second channel is a physical downlink shared channel PDSCH (Physical Downlink Shared Channel). PDCCH processes control information and instructs the on-board terminal device on how to parse and respond to transmitted data; PDSCH carries actual satellite-to-ground control information. After receiving the configuration information, the on-board terminal device can know the target beam according to the beam to be monitored in the configuration information. If the target beam is beam 2, the on-board terminal device performs PDCCH monitoring on beam 2.

[0081] Specifically, in step S13, scheduling information transmitted on the first channel PDCCH is obtained, such as the scheduling information is DCI (Down link Control Information, downlink control information).

[0082] Specifically, in step S14, the acquiring the satellite-to-ground control information transmitted on the corresponding second channel according to the configuration information and the scheduling information includes: parsing the scheduling information in the target search space using the target scrambling identifier to obtain the second channel information used to transmit the satellite-to-ground control information; and acquiring the satellite-to-ground control information transmitted on the second channel.

[0083] For example, see Figure 4 , Figure 4 The present invention provides a schematic diagram of information interaction between a ground network device and an onboard terminal device, which includes the following steps:

[0084] Step 1. The satellite establishes a connection with the ground tracking and control station, and the onboard terminal device starts monitoring;

[0085] Step 2. The ground network equipment generates satellite-to-ground control information in real time according to user needs, such as the satellite-to-ground control information being beam control instruction information;

[0086] Step 3. The ground network device uses the first channel PDCCH to send the scheduling information (such as DCI) of the satellite-to-ground control information. In this process, the ground network device uses the target scrambling symbol GC-RNT I to scramble the scheduling information. After the onboard terminal device monitors the scheduling information, it uses the target scrambling identifier to parse the scheduling information in the target search space to obtain the second channel information used to transmit the satellite-to-ground control information;

[0087] Step 4. The ground network equipment uses the second channel PDSCH to send satellite-to-ground control information. In this process, the target scrambling symbol GC-RNT I is also used to scramble the satellite-to-ground control information. After the onboard terminal equipment obtains the satellite-to-ground control information, it uses the target scrambling identifier to parse the satellite-to-ground control information to obtain specific control instructions.

[0088] It is worth noting that different RNT I complete different "tasks", but the working principle of RNT I is the same, that is, using RNT I to scramble the CRC part of the wireless channel information, that is, if the RNT I value on the UE side is different, even if the UE receives the information, it cannot decode the data. Using this principle, in an embodiment of the present invention, by adding a target scrambling identifier to the configuration information, the on-board terminal device can use this target scrambling identifier to parse the scheduling information and satellite-to-ground control information after obtaining the information.

[0089] The satellite-to-ground control information acquisition method disclosed in the present invention can monitor the scheduling information of the satellite-to-ground control information according to the configuration information, and even if the satellite-to-ground control information is updated in real time, the scheduling information can be accurately acquired, and then the transmission channel of the satellite-to-ground control information can be quickly learned according to the scheduling information, so that the on-board terminal equipment does not need to perform a complete wireless access process to acquire the satellite-to-ground control information, thereby reducing the transmission delay of the satellite-to-ground control information, and the on-board terminal can quickly acquire the satellite-to-ground control information.

[0090] See also Figure 5 , Figure 5 1 is a flow chart of a second satellite-to-ground control information acquisition method provided by an embodiment of the present invention. The second satellite-to-ground control information acquisition method is applied by a ground network device. The method includes:

[0091] S12, sending configuration information; wherein the configuration information is used to instruct the on-board terminal device to monitor the first channel according to the configuration information, and the first channel is used to transmit scheduling information of satellite-to-ground control information;

[0092] S13, transmitting scheduling information on the first channel;

[0093] S14. Transmit satellite-to-ground control information on the second channel, so that the network device obtains the satellite-to-ground control information according to the configuration information and the scheduling information.

[0094] Specifically, the sending of the configuration information includes: sending the configuration information when an event triggering condition is met; wherein the event triggering condition includes at least one of the following:

[0095] The first satellite mission accessing a non-terrestrial network area was detected;

[0096] An update to the configuration information was detected.

[0097] Specifically, the configuration information includes the beam information to be monitored, the target scrambling identifier and the target search space; wherein the beam information to be monitored includes the frequency band information of the feeder link and / or the port information corresponding to the beam; the target scrambling identifier is selected from the temporary identifier of the wireless network on the ground; and the target search space is a special search space.

[0098] Specifically, the first channel is a physical downlink control channel, and the second channel is a physical downlink shared channel.

[0099] It is worth noting that the working process of the second satellite-to-ground control information acquisition method described in the embodiment of the present invention can refer to the working process of the ground network equipment in the first satellite-to-ground control information acquisition method in the above embodiment, which will not be repeated here.

[0100] See also Figure 6 , Figure 6 1 is a structural block diagram of an on-board terminal device 100 provided in an embodiment of the present invention, wherein the on-board terminal device 100 includes:

[0101] The configuration information receiving module 11 is used to receive the configuration information of the ground network equipment;

[0102] A first channel monitoring module 12 is used to monitor the first channel according to the configuration information; wherein the first channel is used to transmit scheduling information of satellite-to-ground control information;

[0103] A scheduling information acquisition module 13, used to acquire scheduling information transmitted on the first channel;

[0104] The satellite-ground control information acquisition module 14 is used to acquire the satellite-ground control information transmitted on the corresponding second channel according to the configuration information and the scheduling information.

[0105] It is worth noting that the working process of each module in the on-board terminal device 100 described in the embodiment of the present invention can refer to the working process of the on-board terminal device in the first method for acquiring satellite-ground control information in the above embodiment, and will not be repeated here.

[0106] See also Figure 7 , Figure 7 is a structural block diagram of a ground network device 200 provided in an embodiment of the present invention, wherein the ground network device 200 includes:

[0107] A configuration information sending module 21 is used to send configuration information; wherein the configuration information is used to instruct the on-board terminal device to monitor the first channel according to the configuration information, and the first channel is used to transmit scheduling information of satellite-to-ground control information;

[0108] A scheduling information sending module 22, configured to transmit scheduling information on the first channel;

[0109] The satellite-to-ground control information sending module 23 is used to transmit the satellite-to-ground control information on the second channel, so that the network device obtains the satellite-to-ground control information according to the configuration information and the scheduling information.

[0110] It is worth noting that the working process of each module in the ground network device 200 described in the embodiment of the present invention can refer to the working process of the ground network device in the first satellite-to-ground control information acquisition method in the above embodiment, and will not be repeated here.

[0111] See also Figure 8 , Figure 81 is a structural block diagram of a satellite-to-ground control information acquisition device 300 provided in an embodiment of the present invention, and the satellite-to-ground control information acquisition device 300 includes a processor 31, a memory 32, and a computer program stored in the memory 32 and executable on the processor 31. When the processor 31 executes the computer program, the steps in the above-mentioned satellite-to-ground control information acquisition method embodiments are implemented.

[0112] Exemplarily, the computer program may be divided into one or more modules / units, which are stored in the memory 32 and executed by the processor 31 to implement the present invention. The one or more modules / units may be a series of computer program instruction segments capable of implementing specific functions, which are used to describe the execution process of the computer program in the satellite-to-ground control information acquisition device 300.

[0113] The satellite-to-ground control information acquisition device 300 may include, but is not limited to, a processor 31 and a memory 32. Those skilled in the art may understand that the schematic diagram is merely an example of the satellite-to-ground control information acquisition device 300 and does not constitute a limitation on the satellite-to-ground control information acquisition device 300. The satellite-to-ground control information acquisition device 300 may include more or fewer components than shown in the figure, or may combine certain components, or different components. For example, the satellite-to-ground control information acquisition device 300 may also include input and output devices, network access devices, buses, etc.

[0114] The processor 31 may be a central processing unit (CPU), or other general processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general processor may be a microprocessor or any conventional processor, etc. The processor 31 is the control center of the satellite-to-ground control information acquisition device 300, and uses various interfaces and lines to connect various parts of the entire satellite-to-ground control information acquisition device 300.

[0115] The memory 32 can be used to store the computer program and / or module. The processor 31 realizes various functions of the satellite-to-ground control information acquisition device 300 by running or executing the computer program and / or module stored in the memory 32 and calling the data stored in the memory 32. The memory 32 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory 32 can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Med ia Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0116] Wherein, if the module / unit integrated in the satellite-to-ground control information acquisition device 300 is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor 31, the steps of the above-mentioned method embodiments can be implemented. Wherein, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-On lyMemory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium, etc.

[0117] An embodiment of the present invention further provides a computer program product, including computer instructions, which, when executed by a processor, implement the satellite-ground control information acquisition method as described in the above embodiment.

[0118] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A method for acquiring satellite-ground control information, characterized in that: Applied to on-board terminal equipment, the method comprises: Receive configuration information of ground network equipment; Monitoring a first channel according to the configuration information; wherein the first channel is used to transmit scheduling information of satellite-to-ground control information; Acquire scheduling information transmitted on the first channel; According to the configuration information and the scheduling information, satellite-to-ground control information transmitted on the corresponding second channel is acquired.

2. The satellite-to-ground control information acquisition method according to claim 1, characterized in that: The configuration information includes information of the beam to be monitored, a target scrambling identifier and a target search space.

3. The satellite-to-ground control information acquisition method according to claim 2, characterized in that: The monitoring the first channel according to the configuration information includes: Determine a target beam for transmitting the scheduling information according to the beam information to be monitored; A first channel is monitored on the target beam.

4. The satellite-to-ground control information acquisition method according to claim 2, characterized in that: The acquiring, according to the configuration information and the scheduling information, satellite-to-ground control information transmitted on the corresponding second channel comprises: parsing the scheduling information in the target search space using the target scrambling identifier to obtain second channel information for transmitting the satellite-to-ground control information; Acquire satellite-to-ground control information transmitted on the second channel.

5. The satellite-to-ground control information acquisition method according to claim 2, characterized in that: The beam information to be monitored includes the frequency band information of the feeder link and / or the port information corresponding to the beam; the target scrambling identifier is selected from the temporary identifier of the wireless network on the ground; and the target search space is a special search space.

6. The satellite-to-ground control information acquisition method according to claim 1, characterized in that: The ground network device sends the configuration information when an event triggering condition is met; wherein the event triggering condition includes at least one of the following: The first satellite mission accessing a non-terrestrial network area was detected; An update to the configuration information was detected.

7. The satellite-to-ground control information acquisition method according to any one of claims 1 to 6, characterized in that: The first channel is a physical downlink control channel, and the second channel is a physical downlink shared channel.

8. A method for acquiring satellite-ground control information, characterized in that: Applied to ground network equipment, the method comprises: Sending configuration information; wherein the configuration information is used to instruct the on-board terminal device to monitor the first channel according to the configuration information, and the first channel is used to transmit scheduling information of satellite-to-ground control information; transmitting scheduling information on the first channel; The satellite-to-ground control information is transmitted on the second channel, so that the network device acquires the satellite-to-ground control information according to the configuration information and the scheduling information.

9. The satellite-to-ground control information acquisition method according to claim 8, characterized in that: The sending configuration information includes: The configuration information is sent when an event triggering condition is met; wherein the event triggering condition includes at least one of the following: The first satellite mission accessing a non-terrestrial network area was detected; An update to the configuration information was detected.

10. A satellite terminal device, characterized in that: include: A configuration information receiving module, used to receive configuration information of ground network equipment; A first channel monitoring module, configured to monitor a first channel according to the configuration information; wherein the first channel is used to transmit scheduling information of satellite-to-ground control information; A scheduling information acquisition module, used to acquire scheduling information transmitted on the first channel; The satellite-ground control information acquisition module is used to acquire the satellite-ground control information transmitted on the corresponding second channel according to the configuration information and the scheduling information.

11. A network device, characterized in that: include: A configuration information sending module, used to send configuration information; wherein the configuration information is used to instruct the on-board terminal device to monitor the first channel according to the configuration information, and the first channel is used to transmit scheduling information of satellite-to-ground control information; A scheduling information sending module, used for transmitting scheduling information on the first channel; The satellite-ground control information sending module is used to transmit the satellite-ground control information on the second channel, so that the network device obtains the satellite-ground control information according to the configuration information and the scheduling information.

12. A satellite-to-ground control information acquisition device, characterized in that: The method comprises a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein when the processor executes the computer program, the method for acquiring satellite-to-ground control information as claimed in any one of claims 1 to 9 is implemented.

13. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored computer program, wherein when the computer program is executed, the device where the computer-readable storage medium is located is controlled to execute the satellite-to-ground control information acquisition method according to any one of claims 1 to 9.

14. A computer program product, characterized in that The method comprises computer instructions, which, when executed by a processor, implements the satellite-to-ground control information acquisition method as described in any one of claims 1 to 9.

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