CN114244421A - Communication system, method, apparatus, device, and storage medium - Google Patents
Communication system, method, apparatus, device, and storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B7/00—Radio transmission systems, i.e. using radiation field
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Abstract
The present disclosure provides a communication system, method, apparatus, device, and storage medium. The communication system includes: core network equipment, ground station, low orbit satellite system, move and lead to mobile carrier, portable base station and user terminal in moving, wherein: the ground station is connected with the core network equipment and is used for receiving the real-time information transmitted by the user terminal corresponding to the server and transmitted by the core network equipment so as to transmit the real-time information to the low-orbit satellite system; the communication-in-motion mobile carrier is connected with the low-orbit satellite system and is used for receiving real-time information transmitted by the ground station through the low-orbit satellite system; and the user terminal is connected with the portable base station and is used for acquiring the real-time information of the automatic communication-in-motion mobile carrier through the portable base station. The method and the device can solve the problem that the smooth signal with high quality cannot be continuously guaranteed in a fast moving environment, solve the problem of time delay in the moving environment and effectively meet the user requirements.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a communication system, a method, an apparatus, a device, and a storage medium.
Background
With the development of communication technology, the video live broadcast related application based on real-time signal transmission is developed more and more. Meanwhile, the live video range is also expanded from live video at a fixed position to live video demands needing to be moved quickly, such as live broadcast of large-scale sports competitions.
At present, in a fast moving environment, a live broadcast signal cannot continuously maintain high quality, so that frequent mosaic and even live broadcast picture interruption are caused, and the user requirements cannot be met.
Disclosure of Invention
The present disclosure provides a communication system, method, apparatus, device, and storage medium to solve a problem that a high quality smooth signal cannot be continuously guaranteed in a fast moving environment.
In a first aspect, the present disclosure provides a communication system comprising:
core network equipment, ground station, low orbit satellite system, move and lead to mobile carrier, portable base station and user terminal in moving, wherein:
the ground station is connected with the core network equipment and is used for receiving the real-time information transmitted by the user terminal corresponding to the server and transmitted by the core network equipment so as to transmit the real-time information to the low-orbit satellite system;
the communication-in-motion mobile carrier is connected with the low-orbit satellite system and is used for receiving real-time information transmitted by the ground station through the low-orbit satellite system;
and the user terminal is connected with the portable base station and is used for acquiring the real-time information of the automatic communication-in-motion mobile carrier through the portable base station.
Optionally, the low-orbit satellite system includes at least two low-orbit satellites, and a low-orbit satellite closest to the mobile carrier in communication in motion of the at least two low-orbit satellites is used for receiving real-time information transmitted by the mobile carrier in communication in motion; real-time information is transmitted to the communication-in-motion mobile carrier between the low-orbit satellite systems in a laser communication mode.
Optionally, the ground station comprises a light distribution frame ODF, a photoelectric conversion device and a modulator, wherein: the ODF is connected with the core network equipment and used for receiving the real-time information transmitted by the core network equipment; the photoelectric conversion equipment is used for carrying out photoelectric conversion on the real-time information received by the ODF and transmitting the real-time information subjected to the photoelectric conversion to the modulator; and the modulator is connected with the low-orbit satellite system and used for modulating the real-time information received from the photoelectric conversion equipment and transmitting the modulated real-time information to the low-orbit satellite system.
Optionally, the mobile carrier for communications in motion comprises a demodulator and an electrical-to-optical conversion device, wherein: the demodulator is connected with the low-orbit satellite system and used for demodulating the real-time information received from the low-orbit satellite system and transmitting the demodulated real-time information to the electro-optical conversion equipment; and the electro-optical conversion equipment is connected with the portable base station and is used for performing electro-optical conversion on the real-time information received from the demodulator and transmitting the real-time information after the electro-optical conversion to the portable base station.
Optionally, the moving speed of the mobile carrier in motion is less than a speed threshold, and the speed threshold is used for representing the maximum speed of the uninterrupted transmission of the signal.
Optionally, the portable base station includes a baseband processing board, a feeder, and a radio remote unit, RRU, integrated antenna, wherein: the baseband processing board is used for converting the received real-time information into an electric signal for communication and transmitting the electric signal to the RRU integrated antenna through a feeder line; and the RRU integrated antenna is used for sending the received electric signals to the user terminal in the coverage area in an electromagnetic wave mode.
Optionally, the portable base station comprises a 5G portable micro base station employing 4T4R 8 antenna integration.
Optionally, the portable base station is deployed on a mobile carrier for mobile communications in motion.
In a second aspect, the present disclosure provides a communication method, which is applied to a mobile carrier in motion communication according to any one of the first aspect of the present disclosure, and the communication method includes:
receiving real-time information from the low-orbit satellite system, wherein the real-time information is sent to core network equipment by a server corresponding to a user terminal, and the core network equipment sends the real-time information to a ground station so that the ground station sends the real-time information to the low-orbit satellite system;
and transmitting the real-time information to the portable base station to transmit the real-time information to the user terminal through the portable base station.
Optionally, the low-orbit satellite system comprises at least two low-orbit satellites, and the receiving of the real-time information from the low-orbit satellite system comprises: determining a target low-orbit satellite closest to a communication-in-motion mobile carrier in a low-orbit satellite system; and receiving real-time information transmitted by the target low-orbit satellite.
In a third aspect, the present disclosure provides a communication apparatus, which is applied to a mobile carrier in motion communication according to any one of the first aspects of the present disclosure, and includes:
the receiving module is used for receiving the real-time information from the low-orbit satellite system, the real-time information is sent to the core network equipment by the server corresponding to the user terminal, and the core network equipment sends the real-time information to the ground station so that the ground station sends the real-time information to the low-orbit satellite system;
and the sending module is used for sending the real-time information to the portable base station so as to transmit the real-time information to the user terminal through the portable base station.
Optionally, the receiving module is specifically configured to determine a target low-orbit satellite closest to a mobile communication-in-motion carrier in the low-orbit satellite system when the low-orbit satellite system includes at least two low-orbit satellites; and receiving real-time information transmitted by the target low-orbit satellite.
In a fourth aspect, the present disclosure also provides an electronic device, including:
at least one processor;
and a memory communicatively coupled to the at least one processor;
the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to cause the electronic device to perform a communication method corresponding to any one of the third aspect of the present disclosure.
In a fifth aspect, the present disclosure also provides a computer-readable storage medium having stored thereon computer-executable instructions for implementing the communication method according to any one of the third aspects of the present disclosure when the computer-executable instructions are executed by a processor.
The communication system, the method, the device, the equipment and the storage medium provided by the disclosure provide a communication means in a real-time mobile change process by setting a communication-in-motion mobile carrier to be matched with a low-orbit satellite system, and solve the inconvenience brought by fixing satellite communication equipment. The user terminal is connected with the portable base station, and the real-time data transmission function with low time delay and high bandwidth is kept for the user terminal in the moving process by utilizing the mobility of the portable base station. The core network equipment, the ground station, the low-orbit satellite system, the communication-in-motion mobile carrier, the portable base station and the user terminal are matched, so that the smooth signal with high quality is continuously ensured in the fast moving environment.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is an application scenario diagram of a communication method according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a communication system according to an embodiment of the present disclosure;
fig. 3 is a schematic connection diagram of a communication system according to another embodiment of the present disclosure;
fig. 4 is a flowchart of a communication method according to another embodiment of the present disclosure;
fig. 5 is a flowchart of a communication method according to another embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a communication device according to yet another embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of an electronic device according to yet another embodiment of the present disclosure.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The following describes the technical solutions of the present disclosure and how to solve the above technical problems in specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present disclosure will be described below with reference to the accompanying drawings.
In the prior art, when a mobile network has good coverage and a base station is sufficiently deployed, when a user terminal connected to the mobile network moves at different positions, seamless coverage is usually achieved through handover between the base stations. In a common emergency communication scenario, a core network is generally accessed at a relatively fixed position by means of a vehicle-mounted base station device to provide an emergency communication service, but the emergency communication service has the disadvantages that due to real-time change of a terminal client position and insufficient basic network conditions, a traditional communication-in-motion emergency guarantee scheme can only technically realize narrow-band low-rate transmission, and due to overlarge time delay caused by a base station switching process, certain application scenarios cannot meet use requirements, such as real-time live broadcast interaction, high-speed internet services and the like.
In the aspect of real-time live broadcast interaction, most of the technologies adopted in the live broadcast process of similar events such as marathon at the present stage are modes combining backpack and microwave relay, so that a good transmission effect can be achieved under the condition of good signal coverage, and once the signal coverage around a competition area is weak, frequent mosaic and even the condition of interruption of competition pictures can be caused, so that the visual experience of audiences is seriously influenced. Meanwhile, the microwave signal matching process in the microwave erection and transmission process is time-consuming and labor-consuming, the accuracy is not high, the transmission is unstable, and the signal transmission interruption phenomenon is easy to cause. Therefore, the existing communication system cannot meet the problem of continuously keeping the high-quality signal smooth in the fast moving environment.
In order to solve the above problem, embodiments of the present disclosure provide a communication system, which combines a low-orbit satellite system, a mobile carrier for communications in motion and a portable base station, so as to ensure that no base station handover occurs in a fast moving environment, and ensure high quality of communications through the low-orbit satellite.
The following explains an application scenario of the embodiment of the present disclosure:
fig. 1 is an application scenario diagram of a communication system according to an embodiment of the present disclosure. As shown in fig. 1, during the communication process, a user continuously communicates with the cloud server platform 120 through the communication system 110 during the fast movement process of the user terminal 100, so as to transmit communication data in real time, and ensure effective real-time communication.
It should be noted that, in the scenario shown in fig. 1, the user terminal and the cloud server platform are illustrated as an example, but the disclosure is not limited thereto, that is, the number of the user terminal and the cloud server platform may be any.
The communication method provided by the present disclosure is explained in detail by specific embodiments below. It should be noted that the following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.
Fig. 2 is a schematic structural diagram of a communication system according to an embodiment of the present disclosure; fig. 3 is a schematic diagram of the connection relationship between the structures in this embodiment. As shown in fig. 2, the communication system 200 includes:
the ground station 220 is connected with the core network device 210, and the ground station 220 is configured to receive the real-time information transmitted by the core network device 210 by the server corresponding to the user terminal 260, so as to transmit the real-time information to the low-orbit satellite system 230;
the communication-in-motion mobile carrier 240 is connected with the low-orbit satellite system 230 and is used for receiving the real-time information transmitted by the ground station 220 through the low-orbit satellite system 230;
and the user terminal 260 is connected with the portable base station 250, and the user terminal 260 is used for acquiring the real-time information from the mobile carrier 240 of the mobile communication in motion through the portable base station 250.
Specifically, the fixed ground station 220 is connected to the core network device 210, and the real-time information transmitted to the low-orbit satellite system 230 can stably transmit the real-time information transmitted by the server targeted by the user terminal 260 to the low-orbit satellite system 230, and since the ground station 220 and the core network device 210 are fixed facilities, stable signal transmission between the server and the low-orbit satellite system 230 can be ensured.
The low-orbit satellite communication system 230 comprises a space section, a ground section and a user section, wherein the space section is a constellation system or other multi-satellite system formed by a plurality of low-orbit satellites and is responsible for receiving and forwarding information, the ground section comprises various gateway stations and a control center, and the user section comprises various user terminals, including handheld terminals, vehicle-mounted satellite stations and the like.
By arranging the low-orbit satellite system 230 to replace a traditional synchronous orbit satellite or a high-flux satellite which is communicated with the communication-in-motion mobile carrier 240 or the ground station 220 in the prior art, the low-orbit satellite system 230 can effectively realize the cooperation with the communication-in-motion mobile carrier 240 by utilizing the high communication quality and the low time delay of the low-orbit satellite system 230, and the stability and the low time delay characteristic of signal transmission in quick movement are ensured.
The communication-in-motion mobile carrier 240 is a mobile satellite communication and tracking system, and the mobile satellite communication system mainly includes an antenna unit, an attitude measurement system, a servo control system, a tracking receiver, a power amplifier unit, a power supply unit, a channel terminal device, and the like. The tracking technology adopted by the tracking system (i.e. tracking receiver) mainly comprises phased array and optical gyro tracking technology. When the mobile satellite communication system is operated, the communication system structure is formed under the condition that the antenna is aligned with the target satellite. Because the mobile satellite communication system mainly aims at the signal transmission of a moving carrier, when the carrier moves, the direction between an antenna and a satellite deviates, and at the moment, the tracking receiver and the servo control system jointly regulate and control the rotation of the antenna so as to ensure that an antenna unit can be aligned to the satellite.
Further, commonly used antenna tracking methods include precise pointing tracking, beacon tracking, and hybrid tracking. If the antenna accuracy is too much pursued, not only the gain effect is not good, but also the manufacturing cost is increased. Therefore, when the system is designed, the antenna tracking precision needs to be reasonably designed according to the use requirements.
The conventional mobile carrier 240 for communication in motion can meet the application requirements of the mobile phone in the scenes covered by voice and data signals. In the coverage range of the mobile carrier of the communication-in-motion, the direct communication of the mobile phone can be equal to the normal use standard, namely, the voice call is clear and undistorted, and the 3G/4G/5G voice and data services are smooth; WIFI, broadband data, video conferencing and daily office meet actual use requirements.
Specifically, the mobile communication-in-motion carrier 240 includes three parts, namely a communication-in-motion system, a satellite link and a master station system. The satellite communication system for communication in motion mainly has the function of collecting service information such as voice, data, images and the like through a local area network switch and a router, transmitting the service information to a satellite, and then transmitting the service information to a satellite receiving device on the ground through a forwarding device arranged on a low orbit satellite. Therefore, the mobile carrier 240 of the mobile satellite communication system can realize the real-time tracking and positioning function of the mobile carrier, and can realize the transmission of information such as voice, data, images and the like.
In some embodiments, when the mobile carrier 240 is an aquatic vessel, the mobile carrier 240 includes three parts, namely a ship-borne system, a satellite link and a shore station system. At this time, various application information systems of the mobile carrier 240 in motion are collected and transmitted to the satellite modem through the lan switch and the router, transmitted to the satellite through the satellite communication system in the shipborne system, and finally transmitted to the satellite ground station through the satellite to post-process and distribute corresponding communication companies. The base station that adopts in the scheme can be 3, 4, 5G basic stations for network operator, and WIFI utilizes a plurality of APs of taking built-in antenna certainly to carry out wireless coverage and can realize whole ship and cover.
Through the cooperation of the communication-in-motion mobile carrier 240 and the low-orbit satellite system 230, a fixed satellite station which is matched with the low-orbit satellite system 230 in the prior art is replaced, the problems that the use condition is limited and the communication service in quick movement cannot be carried out are effectively solved, and the application range of the low-orbit satellite system 230 is greatly expanded.
The mobile carrier 240 can communicate with the portable base station 250 in real time to transmit real-time data to the low-orbit satellite system 230, so that the problem of unstable communication quality caused by communication with different fixed satellite stations when only the portable base station 250 is used is avoided.
The portable base station 250 is a mobile base station, and by setting the portable base station 250, the user terminal 260 can be continuously connected with the same base station without switching the base station, thereby avoiding the problems of delay and low data transmission quality caused by switching the base station.
The user terminal 260 is generally a portable device capable of moving, and the user terminal 260 can transmit real-time information such as video, audio, image data or input application data in real time, so the user terminal 260 can be a camera device, a recording device or a portable detection device, and can also be a smart phone, a laptop with wifi function, or other devices capable of data communication. When the communication system has 5G communication capability, the user terminal 260 may also be a 5G handset, a 5G backpack, a 5G CPE device, or other devices supporting 5G communication.
As shown in fig. 3, in some embodiments, the low-orbit satellite system 230 includes at least two low-orbit satellites 231, and a low-orbit satellite 231 closest to the mobile carrier 240 in motion among the at least two low-orbit satellites 231 is used for receiving the real-time information transmitted by the mobile carrier 240 in motion; the low-orbit satellite system 230 transmits real-time information to the ground station 220 via laser communication.
In order to ensure high communication quality and low time delay, the coverage area of the low-orbit satellite system 230 is smaller than that of a conventional satellite system, and therefore, the low-orbit satellite 231 directly communicating with the mobile carrier 240 does not necessarily cover the cloud server that needs to communicate with the user terminal 260, and relay transmission communication needs to be performed between the low-orbit satellites 231 through a laser relay, so as to ensure that communication with the cloud server can be performed with low time delay.
Through the mode of laser communication, can effectively guarantee communication quality and communication efficiency between low orbit satellite 231, and then effectively guarantee the low time ductility of communication.
In some embodiments, the ground station 220 includes an ODF (Optical Distribution Frame) 221, a photoelectric conversion device 222, and a modulator 223, wherein: the ODF 221 is connected to the core network device 210, and configured to receive the real-time information transmitted by the core network device 210; a photoelectric conversion device 222 for performing photoelectric conversion on the real-time information received by the ODF 221, and transmitting the real-time information after the photoelectric conversion to the modulator 223; and a modulator 223 connected to the low-orbit satellite system 230, for performing modulation processing on the real-time information received from the photoelectric conversion device 222, and transmitting the modulated real-time information to the low-orbit satellite system 230.
The ground station 220 is configured to access the real-time information received from the low-orbit satellite system 230 to the core network device 210, and may also be configured to access the real-time information (e.g., internet information) transmitted by the core network device 210 to the low-orbit satellite system 230, the mobile carrier 240 and the portable base station 250 through an optical fiber to transmit the real-time information to the user terminal 260, so as to ensure stable real-time communication with the user terminal 260.
Further, the core network device 210 may further include a core machine room, an access convergence machine room and a bearer network, the core network device 210 connects the internet information with the access convergence machine room through the bearer network, and the access convergence machine room accesses the internet information to the ground station 220 through the bearer network.
In some embodiments, the ground station 220 may also include a satellite antenna, a radio frequency system, a baseband system, and a power supply system, the power supply system meets the power requirement of the ground station 220, the baseband system performs coding modulation on the signal and sends the signal to the radio frequency system, the baseband system converts the signal into a radio frequency signal through a frequency conversion function, and the satellite antenna sends the signal to the low-orbit satellite system 230, so that the effect of forwarding the received real-time information can also be achieved.
In some embodiments, the ground station 220 may further include an HPA (High Power Amplifier) before transmitting data to the low-orbit satellite system 230 to ensure signal quality when communicating with the low-orbit satellite system 230.
In some embodiments, the mobile carrier 240 of the mobile phone includes a demodulator 241 and an electrical-to-optical conversion device 242, wherein: a demodulator 241, connected to the low-orbit satellite system 230, for demodulating the real-time information received from the low-orbit satellite system 230 and transmitting the demodulated real-time information to the electro-optical conversion device 242; and an electrical-to-optical conversion device 242 connected to the portable base station 250, for performing electrical-to-optical conversion on the real-time information received from the demodulator 241 and transmitting the electrical-to-optical converted real-time information to the portable base station 250.
The communication-in-motion mobile carrier 240 includes but is not limited to a car, a small ship, a train, an airplane, an unmanned aerial vehicle, and the like, and the communication-in-motion mobile carrier 240 can be matched with the rapid movement of the user terminal 260 in real time, so that the uninterrupted transmission of signals is ensured.
The demodulator 241 and the electro-optical conversion device 242 are used for connecting the low-orbit satellite system 230 and the portable base station 250, so that the portable base station 250 and the low-orbit satellite system 230 can be ensured to be in communication connection through the same satellite communication and tracking system all the time, and the time delay caused by switching the satellite communication system (such as switching a ground station) is effectively reduced.
In some embodiments, the moving speed of the mobile carrier 240 is less than a speed threshold, which is used to characterize the maximum speed of uninterrupted transmission of signals.
Specifically, when the speed of the mobile carrier 240 is greater than the speed threshold, there may be a problem of data loss during signal transmission with the low-orbit satellite system 230, and within the range of the speed threshold, uninterrupted signal transmission can be effectively ensured. Therefore, the moving speed of the mobile carrier 240 of the mobile phone in motion needs to be limited.
Further, according to the performance of the satellite tracking system of the mobile carrier 240 in the middle of moving, the corresponding speed threshold of the mobile carrier 240 in the middle of moving is different, and the stronger the performance is, the higher the speed threshold is.
Further, according to the requirement of the moving speed of the user terminal 260, different mobile carriers 240 and corresponding satellite tracking systems for communication in motion can be selected to ensure that stable signal transmission can be continuously provided for the user terminal.
In some embodiments, the portable base station 250 includes a baseband processing board 251, a feeder 252, and an RRU (Remote Radio Unit, RRU) integrated antenna 253, where: the baseband processing board 251 is configured to convert the received real-time information into an electrical signal for communication, and transmit the electrical signal to the RRU integrated antenna 253 through the feeder 252; and the RRU integrated antenna 253 is configured to send the received electrical signal to the user terminal 260 in the coverage area by means of electromagnetic waves.
The portable base station 250 is bound with the mobile carrier 240 for communication in motion, so as to ensure that the portable base station 250 can stably communicate with the mobile carrier 240 for communication in motion, provide stable signal access for the user terminal 260, improve the stability of information transmission, and avoid the problem of unstable information transmission caused by the change of the relative position of the portable base station 250 and the mobile carrier 240 for communication in motion (for example, a third party drives the portable base station 250 to move).
In some embodiments, portable base station 250 comprises a portable micro base station that employs 4T4R 8 antenna integration.
Wherein the portable base station 250 is deployed on the mobile carrier 240 of the mobile communication in motion.
Specifically, the portable base station 250 may be a 5G femtocell, such as an easymanco femtocell or a BOOK-RRU femtocell. By configuring the portable base station 250 as a 5G micro base station, it is possible to reduce the volume by 75% and reduce the weight by 80% compared to the conventional 5G base station. By utilizing the characteristic of the large-scale MIMO technology of 5G while the structure is small, the number of the transceivers is reduced, so that the volume of the 5G antenna is reduced, the antenna can be installed on the communication-in-motion mobile carrier 240, and the stability of information transmission between the antenna and the communication-in-motion mobile carrier 240 is effectively ensured.
In some embodiments, when the communication system needs to be in an emergency communication scenario, the portable base station 250 is required to provide an emergency communication function for the plurality of user terminals 260, and the communication system mainly transmits signals to the ground station 220, the low-orbit satellite system 230, the mobile carrier 240 and the portable base station 250 through the core network device 210 in sequence, and communicates with the user terminals 260 through the portable base station 250.
In some embodiments, when the communication system needs to provide a live broadcast signal uploading service for a fast moving user terminal, the portable base station 250 mainly receives a real-time signal uploaded by the fast moving user terminal 260, and at this time, the communication system mainly transmits a live broadcast signal to the mobile carrier 240 of the mobile satellite system in motion, the low-orbit satellite system 230, the ground station 220, and the core network device 210 in sequence through the portable base station 250, so that the core network device 210 uploads the live broadcast signal to a server on the internet.
The communication system provided by the embodiment of the disclosure provides a communication means in a real-time mobile change process by setting a communication-in-motion mobile carrier to be matched with a low-orbit satellite system, and solves the inconvenience brought by fixed satellite communication. The user terminal is connected with the portable base station, and the low-delay and high-bandwidth real-time data transmission function in the moving process is realized by utilizing the mobility of the portable base station. The core network equipment, the ground station, the low-orbit satellite system, the communication-in-motion mobile carrier, the portable base station and the user terminal are matched, so that the smooth signal with high quality is continuously ensured in the fast moving environment.
Fig. 4 is a flow chart of a communication method provided by the present disclosure. The communication method is applied to the communication-in-motion mobile carrier according to any one of the embodiments of fig. 2 and 3. As shown in fig. 4, the communication method provided in this embodiment includes the following steps:
step S401, receiving real-time information from a low orbit satellite system.
The real-time information is sent to the core network equipment by the server corresponding to the user terminal, and the core network equipment sends the real-time information to the ground station, so that the ground station sends the real-time information to the low-orbit satellite system.
When a user terminal in rapid movement needs to continuously and stably transmit data to a cloud server, a ground station needs to firstly send a real-time signal in the server transmitted by core network equipment to a low-orbit satellite system, then a mobile carrier in motion receives a message transmitted by the low-orbit satellite system, and a portable base station transmits the received real-time information to the user terminal, so that stable communication of the user terminal is realized. In some embodiments, when an original ground station fails to work due to power outage or equipment damage in case of disaster, or in an unmanned area environment where the ground station is not located, the normal operation of network communication can be maintained by setting the mobile carrier for satellite communication in motion to receive the real-time signal forwarded by the low-orbit satellite system.
Because the mobile carrier of the mobile satellite communication system and the portable base station are installed at the same position, only the mobile carrier of the mobile satellite communication system installed with the portable base station needs to be configured, the mobile flexibility of the communication system is improved by utilizing the portable base station, and the stable and continuous communication of the user terminal is effectively ensured, so that the mobile satellite communication system is applied to the traveling type 5G signal coverage of rescue boats, helicopters and unmanned planes during rescue and relief work, rescue and relief work and large-scale activity scenes of large-scale sports events such as marathons, follow-up live broadcast of bicycle games and the like, and communication requirements under other environments needing to move quickly.
Further, after the mobile carrier in motion receives the real-time information sent by the low-orbit satellite system, the received modulation signal is demodulated, and then the corresponding real-time information is obtained through electro-optical conversion processing, so that the real-time information can be sent to the user terminal through the portable base station.
Step S402, sending the real-time information to the portable base station, so as to transmit the real-time information to the user terminal through the portable base station.
The portable base station can simultaneously receive real-time signals sent by a plurality of user terminals in a coverage area, and then all the real-time signals are sent to the communication-in-motion mobile carrier for processing, so that the communication network can be ensured to effectively meet the requirements of a plurality of fast-moving users, and the application range is widened.
Further, according to the number of user terminals and the data communication amount which need to communicate simultaneously, one or more portable base stations can be arranged on the mobile carrier of the mobile satellite communication system, and the portable base stations with different performances are selected to improve the communication capacity of the communication system.
The communication method provided by the embodiment of the disclosure transmits real-time information to a user terminal through a portable base station by receiving the real-time information from a low-orbit satellite system and then transmitting the real-time information to the portable base station. By matching the low-orbit satellite system, the mobile carrier of the mobile satellite communication in motion and the portable base station, the problem of time delay in the communication process can be solved, the problem of the difference of the fixed satellite station on the communication of the user terminals in different environments can be solved, and the problem that the coverage range is fixed and weak and the communication requirement of the user terminals in motion cannot be met by the portable base station can be solved.
Fig. 5 is a flow chart of another communication method provided by the present disclosure. The communication method is applied to the communication-in-motion mobile carrier according to any one of the embodiments of fig. 2 and 3. As shown in fig. 5, the communication method provided in this embodiment includes the following steps:
and S501, determining a target low-orbit satellite closest to the communication-in-motion mobile carrier in the low-orbit satellite system.
The communication-in-motion mobile carrier comprises a satellite tracking system, and the satellite tracking system can determine a target low-orbit satellite which is communicated with the communication-in-motion mobile carrier and carry out data communication with the target low-orbit satellite.
By determining the low-orbit satellite of the fixed communication-in-motion mobile carrier, the time delay problem and the transmission instability problem caused by switching the communication satellite can be reduced, and the high quality of communication can be ensured by using the low-orbit satellite.
And step S502, receiving the real-time information transmitted by the target low-orbit satellite.
The real-time information is sent to the core network equipment by the server corresponding to the user terminal, and the core network equipment sends the real-time information to the ground station, so that the ground station sends the real-time information to the low-orbit satellite system.
This step is the same as step S401 in the corresponding embodiment of fig. 4, and is not repeated here.
Step S503, sending the real-time information to the portable base station, so as to transmit the real-time information to the user terminal through the portable base station.
This step is the same as step S402 in the corresponding embodiment of fig. 4, and is not described again here.
The communication method provided by the embodiment of the disclosure is implemented by determining a target low-orbit satellite closest to a mobile carrier in motion in a low-orbit satellite system, receiving real-time information transmitted by the target low-orbit satellite, and sending the real-time information to a portable base station, so as to transmit the real-time information to a user terminal through the portable base station. The low orbit satellite for fixing the communication with the communication in motion mobile carrier is determined, so that the low orbit satellite for data communication, the communication in motion mobile carrier and the portable base station do not need to be switched and are matched with the user terminal in a mobile state, and the problem of continuously keeping high-quality communication signals in a fast mobile environment is solved.
Fig. 6 is a schematic structural diagram of a communication device provided in the present disclosure. As shown in fig. 6, the communication apparatus is applied to a mobile carrier for communication in motion as in any embodiment of the present disclosure, and the communication apparatus 600 includes: a receiving module 610 and a transmitting module 620.
The receiving module 610 is configured to receive real-time information from the low-orbit satellite system, where the real-time information is sent to the core network device by the server corresponding to the user terminal, and the core network device sends the real-time information to the ground station, so that the ground station sends the real-time information to the low-orbit satellite system;
a sending module 620, configured to send the real-time information to the portable base station, so as to transmit the real-time information to the user terminal through the portable base station.
Optionally, the receiving module 610 is specifically configured to, when the low-orbit satellite system includes at least two low-orbit satellites, determine a target low-orbit satellite closest to a mobile communication-in-motion carrier in the low-orbit satellite system; and receiving real-time information transmitted by the target low-orbit satellite.
In this embodiment, the communication device can realize a fast moving scene in which the user terminal is located by combining the modules, provide stable, high-quality and low-delay real-time communication, meet the user requirements, and improve the user experience.
Fig. 7 is a schematic structural diagram of an electronic device provided in the present disclosure, and as shown in fig. 7, the electronic device 700 includes: a memory 710 and a processor 720.
Wherein the memory 710 stores computer programs that are executable by the at least one processor 720. The computer program is executed by the at least one processor 720 to cause the electronic device to implement the communication method as provided in any of the embodiments above.
Wherein the memory 710 and the processor 720 may be connected by a bus 730.
The related descriptions may be understood by referring to the related descriptions and effects corresponding to the method embodiments, which are not repeated herein.
One embodiment of the present disclosure provides a computer-readable storage medium on which a computer program is stored, the computer program being executed by a processor to implement the communication method according to any of the embodiments corresponding to fig. 4 to 5.
The computer readable storage medium may be, among others, ROM, Random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
One embodiment of the present disclosure provides a computer program product comprising computer executable instructions for implementing the communication method according to any of the embodiments corresponding to fig. 4 to 5 when executed by a processor.
In the several embodiments provided in the present disclosure, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of modules is merely a division of logical functions, and an actual implementation may have another division, for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (13)
1. A communication system, comprising: core network equipment, ground station, low orbit satellite system, move and lead to mobile carrier, portable base station and user terminal in moving, wherein:
the ground station is connected with the core network equipment and is used for receiving the real-time information transmitted by the core network equipment and sent by the server corresponding to the user terminal so as to send the real-time information to the low-orbit satellite system;
the communication-in-motion mobile carrier is connected with the low-orbit satellite system and is used for receiving the real-time information transmitted by the ground station through the low-orbit satellite system;
the user terminal is connected with the portable base station and is used for acquiring real-time information from the communication-in-motion mobile carrier through the portable base station.
2. The communication system according to claim 1, wherein the low-orbit satellite system comprises at least two low-orbit satellites, and a low-orbit satellite closest to the mobile communication-in-motion carrier of the at least two low-orbit satellites is used for receiving the real-time information transmitted by the mobile communication-in-motion carrier; and real-time information is transmitted to the communication-in-motion mobile carrier between the low-orbit satellite systems in a laser communication mode.
3. A communication system according to claim 1 or 2, wherein the ground station comprises an optical distribution frame, ODF, an opto-electronic conversion device and a modulator, wherein:
the ODF is connected with the core network equipment and used for receiving the real-time information transmitted by the core network equipment;
the photoelectric conversion equipment is used for carrying out photoelectric conversion on the real-time information received by the ODF and transmitting the real-time information after the photoelectric conversion to the modulator;
and the modulator is connected with the low-orbit satellite system and used for modulating the real-time information received from the photoelectric conversion equipment and transmitting the modulated real-time information to the low-orbit satellite system.
4. The communication system according to claim 1 or 2, wherein the mobile carrier comprises an electro-optical conversion device and a demodulator, wherein:
the demodulator is connected with the low-orbit satellite system and used for demodulating the real-time information received from the low-orbit satellite system and transmitting the demodulated real-time information to the electro-optical conversion equipment;
the electro-optical conversion equipment is connected with the portable base station and used for performing electro-optical conversion on the real-time information received from the demodulator and transmitting the real-time information after the electro-optical conversion to the portable base station.
5. A communication system according to claim 1 or 2, wherein the speed of movement of the mobile mass carrier is less than a speed threshold, the speed threshold being indicative of a maximum speed of uninterrupted transmission of the signal.
6. The communication system according to claim 1 or 2, wherein the portable base station comprises a baseband processing board, a feeder, a radio remote unit, RRU, integrated antenna, wherein:
the baseband processing board is used for converting the received real-time information into an electric signal for communication and transmitting the electric signal to the RRU integrated antenna through the feeder line;
and the RRU integrated antenna is used for sending the received electric signals to the user terminal in the coverage area in an electromagnetic wave mode.
7. The communication system of claim 6, wherein the portable base station comprises a 5G portable micro base station with a 4T4R 8 antenna integration.
8. A communication system according to claim 1 or 2, wherein the portable base station is deployed on the mobile communication-in-motion carrier.
9. A communication method applied to the mobile communication-in-motion carrier according to any one of claims 1 to 8, the communication method comprising:
receiving real-time information from a low-orbit satellite system, wherein the real-time information is sent to core network equipment by a server corresponding to a user terminal, and the core network equipment sends the real-time information to a ground station so that the ground station sends the real-time information to the low-orbit satellite system;
and sending the real-time information to the portable base station so as to transmit the real-time information to a user terminal through the portable base station.
10. The communication method of claim 9, wherein the low-orbit satellite system comprises at least two low-orbit satellites, and wherein receiving the real-time information from the low-orbit satellite system comprises:
determining a target low-orbit satellite closest to the communication-in-motion mobile carrier in the low-orbit satellite system;
and receiving the real-time information transmitted by the target low-orbit satellite.
11. A communication device, for use with a mobile communication-in-motion carrier according to any of claims 1 to 7, the communication device comprising:
the receiving module is used for receiving real-time information from the low-orbit satellite system, the real-time information is sent to the core network equipment by the server corresponding to the user terminal, and the core network equipment sends the real-time information to the ground station so that the ground station sends the real-time information to the low-orbit satellite system;
and the sending module is used for sending the real-time information to the portable base station so as to transmit the real-time information to the user terminal through the portable base station.
12. An electronic device, comprising:
at least one processor;
and a memory communicatively coupled to the at least one processor;
wherein the memory stores instructions executable by the at least one processor to cause the electronic device to perform the communication method of claim 9 or 10.
13. A computer-readable storage medium having stored thereon computer-executable instructions for implementing the communication method of claim 9 or 10 when executed by a processor.
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