CN114244421B - Communication systems, methods, devices, equipment and storage media - Google Patents

Abstract

The present disclosure provides a communication system, method, apparatus, device, and storage medium. The communication system includes: the system comprises core network equipment, a ground station, a low-orbit satellite system, a mobile carrier in motion, a portable base station and a user terminal, wherein: the ground station is connected with the core network equipment and is used for receiving the real-time information transmitted by the server corresponding to the user terminal transmitted by the core network equipment so as to transmit the real-time information to the low-orbit satellite system; the mobile 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 real-time information of the automatic mobile carrier through the portable base station. The method and the device can solve the problem that the smoothness of the high-quality signal can not be continuously ensured in the fast moving environment, solve the time delay problem in the moving environment and effectively meet the demands of users.

Description

Communication systems, methods, devices, equipment and storage media

Technical field

The present disclosure relates to the field of communication technology, and in particular, to a communication system, method, device, equipment and storage medium.

Background technique

With the development of communication technology, video live broadcast-related applications based on real-time signal transmission have been increasingly developed. At the same time, the scope of live video broadcasts has also expanded from live video broadcasts at fixed locations to live broadcast needs that require fast movement, such as live broadcasts of large-scale sports matches.

Currently, in a fast-moving environment, there are situations where live broadcast signals cannot maintain high quality continuously, resulting in frequent mosaics and even interruptions in live broadcast images, which cannot meet user needs.

Contents of the invention

The present disclosure provides a communication system, method, device, equipment and storage medium to solve the problem of being unable to continuously ensure smooth high-quality signals in a fast moving environment.

In a first aspect, the present disclosure provides a communication system, which includes:

Core network equipment, ground stations, low-orbit satellite systems, mobile carriers, portable base stations and user terminals, including:

The ground station is connected to the core network equipment. The ground station is used to receive real-time information sent by the corresponding server of the user terminal transmitted by the core network equipment, so as to send the real-time information to the low-orbit satellite system;

The mobile carrier is connected to the low-orbit satellite system. The mobile carrier is used to receive real-time information transmitted by the ground station through the low-orbit satellite system;

The user terminal is connected to the portable base station, and the user terminal is used to obtain real-time information from the mobile carrier through the portable base station.

Optionally, the low-orbit satellite system includes at least two low-orbit satellites. Among the at least two low-orbit satellites, the closest low-orbit satellite to the mobile carrier is used to receive real-time information transmitted by the mobile carrier; the low-orbit satellite The systems transmit real-time information to the mobile carrier through laser communication.

Optionally, the ground station includes an optical distribution frame ODF, photoelectric conversion equipment and a modulator, wherein: ODF is connected to the core network equipment and is used to receive real-time information transmitted by the core network equipment; photoelectric conversion equipment is used to receive the ODF The received real-time information is photoelectrically converted, and the photoelectrically converted real-time information is transmitted to the modulator; the modulator, connected to the low-orbit satellite system, is used to modulate the real-time information received from the photoelectric conversion equipment, and transmit the modulated real-time information to the modulator. real-time information is transmitted to low-orbit satellite systems.

Optionally, the communication-in-motion mobile carrier includes a demodulator and electro-optical conversion equipment, wherein: the demodulator is connected to the low-orbit satellite system, used to demodulate real-time information received from the low-orbit satellite system, and The demodulated real-time information is transmitted to the electro-optical conversion equipment; the electro-optical conversion equipment is connected to the portable base station and is used for electro-optical conversion of the real-time information received from the demodulator, and transmits the electro-optically converted real-time information to the portable base station.

Optionally, the moving speed of the moving carrier is less than the speed threshold, which is used to characterize the maximum speed of uninterrupted signal transmission.

Optionally, the portable base station includes a baseband processing board, a feeder, and a remote radio unit (RRU) integrated antenna, wherein: the baseband processing board is used to convert received real-time information into electrical signals for communication, and pass the electrical signals through the feeder Transmitted to the RRU integrated antenna; the RRU integrated antenna is used to send the received electrical signals to user terminals within the coverage area through electromagnetic waves.

Optionally, the portable base station includes a 5G portable micro base station using a 4T4R 8-antenna integration method.

Optionally, the portable base station is deployed on a mobile carrier.

In a second aspect, the present disclosure provides a communication method, which is applied to any communication-in-motion mobile carrier as in the first aspect of the present disclosure, and the communication method includes:

Receive real-time information from the low-orbit satellite system. The real-time information is sent to the core network equipment by the corresponding server of the user terminal, and the core network equipment sends the real-time information to the ground station, so that the ground station sends real-time information to the low-orbit satellite system. ;

Send 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 includes at least two low-orbit satellites, and receives real-time information from the low-orbit satellite system, including: determining the target low-orbit satellite in the low-orbit satellite system that is closest to the communication-in-motion mobile carrier; receiving the target low-orbit satellite Real-time information transmitted by orbiting satellites.

In a third aspect, the present disclosure provides a communication device. The information push device is applied to the mobile carrier as described in any one of the first aspects of the present disclosure. The information push device includes:

The receiving module is used to receive real-time information from the low-orbit satellite system. The real-time information is sent to the core network equipment by the corresponding server of the user terminal, and the core network equipment sends the real-time information to the ground station, so that the ground station can send the real-time information. to low-orbit satellite systems;

The sending module is used to send 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 used to determine the target low-orbit satellite in the low-orbit satellite system that is closest to the communication-in-motion mobile carrier when the low-orbit satellite system includes at least two low-orbit satellites; and receive real-time transmissions from the target low-orbit satellite. information.

In a fourth aspect, the present disclosure also provides an electronic device, which includes:

at least one processor;

and memory communicatively connected to at least one processor;

The memory stores instructions that can be executed by at least one processor, and the instructions are executed by at least one processor, so that the electronic device executes the communication method corresponding to any embodiment in the third aspect of the present disclosure.

In a fifth aspect, the present disclosure also provides a computer-readable storage medium. Computer-executable instructions are stored in the computer-readable storage medium. When the computer-executable instructions are executed by a processor, they are used to implement any communication as in the third aspect of the present disclosure. method.

The communication system, method, device, equipment and storage medium provided by the present disclosure provide communication means during real-time movement changes by setting up a mobile carrier in motion to cooperate with the low-orbit satellite system, and solve the inconvenience caused by fixed satellite communication equipment. By connecting the user terminal to the portable base station and utilizing the mobility of the portable base station, a real-time data transmission function that maintains low latency and high bandwidth for the user terminal during movement is achieved. Through the cooperation of core network equipment, ground stations, low-orbit satellite systems, mobile carriers on the move, portable base stations and user terminals, we can effectively achieve continuous high-quality signal smoothness in a fast-moving environment.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

Figure 1 is an application scenario diagram of the communication method provided by an embodiment of the present disclosure;

Figure 2 is a schematic structural diagram of a communication system provided by an embodiment of the present disclosure;

Figure 3 is a schematic diagram of the connection relationship of a communication system provided by yet another embodiment of the present disclosure;

Figure 4 is a flow chart of a communication method provided by yet another embodiment of the present disclosure;

Figure 5 is a flow chart of a communication method provided by yet another embodiment of the present disclosure;

Figure 6 is a schematic structural diagram of a communication device provided by yet another embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of an electronic device provided by another embodiment of the present disclosure.

Specific embodiments of the present disclosure have been shown through the above-mentioned drawings and will be 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 present disclosure to those skilled in the art with reference to the specific embodiments.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with aspects of the disclosure as detailed in the appended claims.

The technical solution of the present disclosure and how the technical solution of the present disclosure solves the above technical problems will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. Embodiments of the present disclosure will be described below with reference to the accompanying drawings.

In the existing technology, when mobile network coverage is good and base stations are deployed enough, when user terminals connected to the mobile network move to different locations, seamless coverage is usually achieved through handover between base stations. In common emergency communication scenarios, vehicle-mounted base station equipment is generally relied on to access the core network at a relatively fixed location to provide emergency communication services. However, its disadvantage is that due to real-time changes in the location of end customers and insufficient basic network conditions, Traditional mobile communication emergency support solutions can technically only achieve narrowband low-rate transmission, and due to the excessive delay caused by the base station switching process, some application scenarios cannot meet the usage requirements, such as real-time live broadcast interaction, high-speed Internet services, etc. .

In terms of real-time live broadcast interaction, most of the technologies used in the live broadcast process of marathons and other similar events at this stage are a combination of backpacks and microwave relays. When the signal coverage is good, good transmission effects can be achieved. Once there are signals from the surrounding areas, Weak coverage will lead to frequent mosaics and even interruptions in the game screen, seriously affecting the audience's visual experience. At the same time, the process of setting up microwaves and matching microwave signals during transmission is time-consuming and labor-intensive, and the accuracy is not high, resulting in unstable transmission and easy interruption of signal transmission. Therefore, existing communication systems cannot meet the problem of continuously maintaining high-quality signals in a fast-moving environment.

In order to solve the above problems, embodiments of the present disclosure provide a communication system that combines a low-orbit satellite system, a mobile carrier and a portable base station to ensure that no base station switching occurs in a fast-moving environment, and can also use low-speed Orbiting satellites ensure high quality communications.

The application scenarios of the embodiments of the present disclosure are explained below:

Figure 1 is an application scenario diagram of the communication system provided by an embodiment of the present disclosure. As shown in Figure 1, during the communication process, the user continues to communicate with the cloud server platform 120 through the communication system 110 while carrying the user terminal 100 to quickly transmit the communication data in real time to ensure effective real-time communication.

It should be noted that in the scenario shown in Figure 1, only one user terminal and cloud server platform are used as an example for illustration, but this disclosure is not limited to this. That is to say, the number of user terminals and cloud server platforms can be Arbitrary.

The communication method provided by the present disclosure is described in detail below through specific embodiments. It should be noted that the following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

Figure 2 is a schematic structural diagram of a communication system provided by an embodiment of the present disclosure; Figure 3 is a schematic diagram of the connection relationship of each structure in this embodiment. As shown in Figure 2, the communication system 200 includes:

Core network equipment 210, ground station 220, low orbit satellite system 230, mobile carrier 240, portable base station 250 and user terminal 260, including:

The ground station 220 is connected to the core network equipment 210. The ground station 220 is used to receive real-time information sent by the corresponding server of the user terminal 260 transmitted by the core network equipment 210, so as to send the real-time information to the low-orbit satellite system 230;

The communication-in-motion mobile carrier 240 is connected to the low-orbit satellite system 230. The communication-in-motion mobile carrier is used to receive real-time information transmitted by the ground station 220 through the low-orbit satellite system 230;

The user terminal 260 is connected to the portable base station 250. The user terminal 260 is used to obtain real-time information from the automatic mobile carrier 240 through the portable base station 250.

Specifically, by connecting the fixed ground station 220 to the core network equipment 210 and transmitting real-time information to the low-orbit satellite system 230, the real-time information sent by the target server of the user terminal 260 can be stably transmitted to the low-orbit satellite system 230. Since the ground station 220 and the core network equipment 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 includes three parts: a space segment, a ground segment, and a user segment. The space segment is composed of many low-orbit satellites to form a constellation system or other multi-satellite systems and is responsible for receiving and forwarding information. The ground segment includes various gateway stations and controls. Center, the user segment consists of various user terminals, including handheld terminals, vehicle-mounted satellite stations, etc.

By setting up the low-orbit satellite system 230 to replace the traditional geosynchronous orbit satellites or high-throughput satellites that communicate with the communication-in-motion mobile carrier 240 or the ground station 220 in the existing technology, the high communication quality and low-power of the low-orbit satellite system 230 can be utilized. delay, effectively realizing the cooperation with the mobile carrier 240 to ensure the stability and low delay characteristics of signal transmission during fast movement.

The mobile carrier 240 is a mobile satellite communication and tracking system. The mobile satellite communication system mainly includes antenna unit, attitude measurement system, servo control system, tracking receiver, power amplifier unit, power supply unit and channel terminal equipment. The tracking technologies used in the tracking system (ie, tracking receiver) mainly include phased array and optical gyro tracking technology. When the mobile satellite communication system is operating, the communication system structure will be formed when the antenna is aligned with the target satellite. Since the mobile satellite communication system is mainly aimed at signal transmission of the moving carrier, when the carrier moves, the direction between the antenna and the satellite will deviate. At this time, the tracking receiver and the servo control system jointly regulate the rotation of the antenna. To ensure that the antenna unit can be aligned with the satellite.

Furthermore, commonly used antenna tracking methods include precise pointing tracking, beacon tracking and hybrid tracking methods. If you pursue antenna accuracy too much, not only will the gain effect be poor, but the cost will also increase. Therefore, when designing the system, it is necessary to reasonably design the antenna tracking accuracy based on the usage requirements.

The existing mobile carrier 240 can meet the scenario application of mobile phone voice and data signal coverage. Within the coverage of mobile carriers, mobile phone direct call can be equivalent to normal usage standards, that is, voice calls are clear and undistorted, 3G/4G/5G voice and data services are smooth; WIFI, broadband data, video conferencing, and daily office work are all satisfied. Actual usage requirements.

Specifically, the communication-in-motion mobile carrier 240 includes three parts: the communication-in-motion system, the satellite link, and the main station system. The main function of the mobile satellite communication system is to collect voice, data, images and other business information through LAN switches and routers and transmit it to the satellite, and then transmit it to the satellite receiving equipment on the ground through the forwarding equipment installed on the low-orbit satellite. As a result, the mobile carrier 240 can realize the real-time tracking and positioning function of the mobile carrier itself, and can realize the transmission of voice, data, images and other information.

In some embodiments, when the communication-in-motion mobile carrier 240 is a water vessel, the communication-in-motion mobile carrier 240 includes three parts: a shipboard system, a satellite link, and a shore station system. At this time, various application information systems of the mobile carrier 240 are collected and transmitted to the satellite modem through the LAN switch and router, then transmitted to the satellite through the satellite communication system in the shipboard system, and finally transmitted to the satellite ground station through the satellite. Processing and distribution to the appropriate communications company. The base stations used in the solution can be 3, 4, or 5G base stations of network operators. WIFI uses multiple APs with built-in antennas for wireless coverage to achieve full ship coverage.

The mobile carrier 240 in motion cooperates with the low-orbit satellite system 230 to replace the fixed satellite station that cooperates with the low-orbit satellite system 230 in the existing technology, effectively solving the problem of limited use conditions and inability to carry out fast-moving communication services. The application scope of the low-orbit satellite system 230 is greatly improved.

Through the mobile carrier 240, the mobile carrier 240 can communicate with the portable base station 250 in real time to transmit real-time data sent by the low-orbit satellite system 230. This avoids the need to communicate with different fixed satellite stations when only the portable base station 250 is used. The problem of unstable communication quality.

The portable base station 250 is a mobile base station. By setting the portable base station 250, the user terminal 260 can continuously connect to the same base station without base station switching, thereby avoiding the delay problem and low data transmission quality caused by base station switching. .

The user terminal 260 is generally a portable device, and the user terminal 260 can transmit real-time information such as video, audio, image data, or input application data in real time. Therefore, the user terminal 260 can be a camera device, a recording device, or a portable detection device. , or it can be a smartphone, a laptop with wifi function, and other devices capable of data communication. When the communication system has 5G communication capabilities, the user terminal 260 can also be a 5G mobile phone, a 5G backpack, a 5G CPE device and other devices that support 5G communication.

As shown in Figure 3, in some embodiments, the low-orbit satellite system 230 includes at least two low-orbit satellites 231. The low-orbit satellite 231 of the at least two low-orbit satellites 231 that is closest to the mobile carrier 240 is used to receive the moving carrier. The real-time information transmitted by ZTO mobile carrier 240; the low-orbit satellite system 230 transmits real-time information to the ground station 220 through laser communication.

Among them, in order to ensure high communication quality and low delay, the coverage range of the low-orbit satellite system 230 is smaller than that of the conventional satellite system. Therefore, the low-orbit satellite 231 that communicates directly with the mobile carrier 240 usually does not necessarily have coverage. The cloud server needs to communicate with the user terminal 260. Therefore, relay transmission and communication through laser relay between low-orbit satellites 231 is required to ensure low-latency communication with the cloud server.

Through laser communication, the communication quality and communication efficiency between low-orbit satellites 231 can be effectively guaranteed, thereby effectively ensuring the low latency of communication.

In some embodiments, the ground station 220 includes an ODF (Optical Distribution Frame in English) 221, a photoelectric conversion device 222, and a modulator 223. The ODF 221 is connected to the core network device 210 and is used to receive core The real-time information transmitted by the network device 210; the photoelectric conversion device 222 is used to photoelectrically convert the real-time information received by the ODF 221, and transmit the photoelectrically converted real-time information to the modulator 223; the modulator 223 is connected to the low-orbit satellite system 230 connection, used to modulate the real-time information received from the photoelectric conversion device 222, and transmit the modulated real-time information to the low-orbit satellite system 230.

The ground station 220 is used to connect the real-time information received and transmitted by the low-orbit satellite system 230 to the core network device 210. It can also connect the real-time information (such as Internet information) sent by the core network device 210 to the low-orbit satellite system through optical fiber. 230. The mobile carrier 240 and the portable base station 250 send the communication to the user terminal 260, thereby ensuring stable real-time communication with the user terminal 260.

Further, the core network equipment 210 may also include a core computer room, an access aggregation computer room, and a bearer network. The core network equipment 210 connects Internet information to the access aggregation computer room through the bearer network, and the access aggregation computer room accesses Internet information through the bearer network. Go to ground station 220.

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 requirements of the ground station 220. The baseband system encodes and modulates signals and sends them to the radio frequency system. Through the frequency conversion function The signal is converted into a radio frequency signal, and the signal is sent to the low-orbit satellite system 230 through the satellite antenna. This can also achieve the effect of forwarding the received real-time information.

In some embodiments, before sending data to the low-orbit satellite system 230, the ground station 220 will also set up an HPA (full name in English: High Power Amplifier, high-power amplifier) to ensure communication with the low-orbit satellite system 230. Signal quality.

In some embodiments, the communication-in-motion mobile carrier 240 includes a demodulator 241 and an electro-optical conversion device 242, wherein: the demodulator 241 is connected to the low-orbit satellite system 230 and is used to process real-time signals received from the low-orbit satellite system 230. The information is demodulated and the demodulated real-time information is transmitted to the electro-optical conversion device 242; the electro-optical conversion device 242 is connected to the portable base station 250 and is used to perform electro-optical conversion on the real-time information received from the demodulator 241 and convert the electro-optical information into The converted real-time information is transmitted to the portable base station 250.

Among them, the communication-in-motion mobile carrier 240 includes but is not limited to small cars, small ships, trains, airplanes, and drones. Through the communication-in-motion mobile carrier 240, it can cooperate with the rapid movement of the user terminal 260 in real time, thereby ensuring uninterrupted signals. transmission.

The low-orbit satellite system 230 and the portable base station 250 are connected through the demodulator 241 and the electro-optical conversion device 242, which can ensure that the portable base station 250 and the low-orbit satellite system 230 are always connected through the same satellite communication and tracking system, thereby effectively reducing the need for handovers. Delay caused by satellite communication systems (such as switching ground stations).

In some embodiments, the moving speed of the mobile carrier 240 is less than a speed threshold, and the speed threshold is used to characterize the maximum speed of uninterrupted signal transmission.

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. However, if the speed is within the speed threshold, uninterrupted transmission can be effectively guaranteed. Signal transmission. Therefore, the moving speed of the mobile carrier 240 needs to be limited.

Furthermore, depending on the performance of the satellite tracking system of the mobile carrier 240, the speed threshold corresponding to the mobile carrier 240 is also different. The stronger the performance, the higher the speed threshold.

Furthermore, according to the moving speed requirements of the user terminal 260, different mobile carriers 240 and corresponding satellite tracking systems can be selected to ensure that stable signal transmission can continue to be 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 in English) integrated antenna 253. The baseband processing board 251 is used to process received real-time information. The RRU integrated antenna 253 is used to transmit the received electrical signal to the user terminal 260 in the coverage area through electromagnetic waves.

The portable base station 250 is bound to the mobile carrier 240 to ensure that the portable base station 250 can communicate stably with the mobile carrier 240 and provide stable signal access for the user terminal 260 to improve the stability of information transmission and avoid portable The relative position changes between the base station 250 and the mobile carrier 240 (for example, the portable base station 250 is moved by a third party), leading to the problem of unstable information transmission.

In some embodiments, the portable base station 250 includes a portable micro base station using a 4T4R 8-antenna integration method.

Among them, the portable base station 250 is deployed on the mobile carrier 240.

Specifically, the portable base station 250 may use a 5G micro base station, such as an EasyMarco micro base station or a BOOK-RRU micro base station. By setting the portable base station 250 as a 5G micro base station, the volume can be reduced by 75% and the weight can be reduced by 80% compared with traditional 5G base stations. Taking advantage of its smaller structure and the characteristics of 5G's massive MIMO technology, the number of transceivers is reduced and the size of the 5G antenna is reduced, so that it can be installed on the mobile carrier 240, effectively ensuring communication with the mobile carrier 240. The stability of information transmission between

In some embodiments, when the communication system needs to be in an emergency communication scenario, the portable base station 250 is required to provide emergency communication functions for multiple user terminals 260. At this time, the communication system mainly uses the core network equipment 210 to sequentially provide the ground station 220, low orbit The satellite system 230, the mobile carrier 240 and the portable base station 250 transmit signals and communicate with the user terminal 260 through the portable base station 250.

In some embodiments, when the communication system needs to provide live signal upload services for fast-moving user terminals, the portable base station 250 mainly receives real-time signals uploaded by the fast-moving user terminal 260. At this time, the communication system mainly receives the live signal uploaded by the portable base station 250 in sequence. The live broadcast signal is transmitted to the mobile carrier 240, the low-orbit satellite system 230, the ground station 220 and the core network equipment 210, so that the live broadcast signal is uploaded to the server of the Internet through the core network equipment 210.

The communication system provided by the embodiments of the present disclosure provides communication means during real-time movement changes by setting up a mobile carrier to cooperate with a low-orbit satellite system, thereby solving the inconvenience caused by fixed satellite communications. Through the connection between the user terminal and the portable base station, the mobility of the portable base station is used to realize the real-time data transmission function with low delay and high bandwidth during the movement. Through the cooperation of core network equipment, ground stations, low-orbit satellite systems, mobile carriers on the move, portable base stations and user terminals, we can effectively achieve continuous high-quality signal smoothness in a fast-moving environment.

Figure 4 is a flow chart of a communication method provided by the present disclosure. This communication method is applied to the communication-in-motion mobile carrier in any embodiment of Figure 2 and Figure 3 . As shown in Figure 4, the communication method provided by this embodiment includes the following steps:

Step S401: Receive real-time information from the low-orbit satellite system.

Among them, the real-time information is sent to the core network equipment by the corresponding server of the user terminal, and the core network equipment sends the real-time information to the ground station, so that the ground station can send the real-time information to the low-orbit satellite system.

When fast-moving user terminals need continuous and stable data transmission to the cloud server, the ground station needs to first send the real-time signal from the server transmitted by the core network equipment to the low-orbit satellite system, and then receive it through the mobile carrier The low-orbit satellite system transmits messages and transmits the received real-time information to the user terminal through the portable base station, thereby achieving stable communication of the user terminal. In some embodiments, for example, in the event of a disaster, when the original ground station is unable to work due to power outage or equipment damage, or in an uninhabited area where no ground station is installed, mobile carriers can be set up to receive low-frequency data. Orbiting satellite systems forward real-time signals to maintain the normal operation of network communications.

Since the mobile carrier and the portable base station are installed at the same location, it is only necessary to configure the mobile carrier equipped with the portable base station. The use of the portable base station improves the mobility flexibility of the communication system and effectively ensures the stability and continuity of user terminals. communications, which can be used in rescue and disaster relief and large-scale event scenarios such as search and rescue boats, helicopters, and drones for traveling 5G signal coverage, and follow-up live broadcasts of large sports events such as marathons and cycling races, as well as other scenarios that require rapid Communication needs in a mobile environment.

Furthermore, after the mobile carrier receives the real-time information sent by the low-orbit satellite system, it demodulates the received modulated signal and then obtains the corresponding real-time information through electro-optical conversion processing, so that it can be sent to the user through the portable base station terminal.

Step S402: Send real-time information to the portable base station 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 from multiple user terminals in the coverage area, and then send them all to the mobile carrier for processing. This ensures that the communication network can effectively meet the needs of multiple fast-moving users and improves the scope of application. .

Furthermore, according to the number of user terminals that need to communicate simultaneously and the amount of data traffic, one or more portable base stations can be set up on the mobile carrier, and portable base stations with different performances can be selected to improve the communication capabilities of the communication system.

The communication method provided by the embodiment of the present disclosure receives real-time information from a low-orbit satellite system and then sends the real-time information to a portable base station, so as to transmit the real-time information to the user terminal through the portable base station. Through the cooperation of low-orbit satellite systems, mobile carriers and portable base stations, it can not only solve the delay problem in the communication process, but also solve the difference between fixed satellite stations in user terminal communications in different environments. It can also be solved by portable base stations. The coverage is fixed and weak and cannot meet the communication needs of mobile user terminals.

Figure 5 is a flow chart of another communication method provided by the present disclosure. This communication method is applied to the communication-in-motion mobile carrier in any embodiment of Figure 2 and Figure 3 . As shown in Figure 5, the communication method provided by this embodiment includes the following steps:

Step S501: Determine the target low-orbit satellite in the low-orbit satellite system that is closest to the communication-in-motion mobile carrier.

The mobile carrier includes a satellite tracking system. Through the satellite tracking system, the target low-orbit satellite that communicates with the mobile carrier can be determined, and data communication can be carried out with the target low-orbit satellite.

By determining low-orbit satellites for fixed and mobile carriers, the delay problems and transmission instability caused by switching communication satellites can be reduced, and low-orbit satellites can be used to ensure high quality communication.

Step S502: Receive real-time information transmitted by the target low-orbit satellite.

Among them, the real-time information is sent to the core network equipment by the corresponding server of the user terminal, and the core network equipment sends the real-time information to the ground station, so that the ground station can send the real-time information to the low-orbit satellite system.

This step is the same as step S401 in the corresponding embodiment of Figure 4 and will not be described again here.

Step S503: Send real-time information to the portable base station 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 Figure 4 and will not be described again here.

The communication method provided by the embodiment of the present disclosure determines the target low-orbit satellite closest to the communication-in-motion carrier in the low-orbit satellite system, then receives the real-time information transmitted by the target low-orbit satellite, and then sends the real-time information to the portable base station to pass Portable base stations transmit real-time information to user terminals. By determining the low-orbit satellites that communicate with fixed and mobile carriers, low-orbit satellites for data communication, mobile carriers and portable base stations do not need to be switched, and can cooperate with user terminals in a mobile state, thereby solving the problem of rapid The problem of continuously maintaining high-quality communication signals in mobile environments.

Figure 6 is a schematic structural diagram of a communication device provided by the present disclosure. As shown in FIG. 6 , the communication device is applied to a mobile carrier in any embodiment of the present disclosure. The communication device 600 includes: a receiving module 610 and a sending module 620 .

The receiving module 610 is used to receive real-time information from the low-orbit satellite system. The real-time information is sent to the core network equipment by the corresponding server of the user terminal, and the core network equipment sends the real-time information to the ground station, so that the ground station can transmit the real-time information to the ground station. sent to low-orbit satellite systems;

The sending module 620 is used to send 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 used to determine the target low-orbit satellite in the low-orbit satellite system that is closest to the mobile carrier in the low-orbit satellite system when the low-orbit satellite system includes at least two low-orbit satellites; and receive the data transmitted by the target low-orbit satellite. Real-time information.

In this embodiment, through the combination of various modules, the communication device can realize the fast moving scenario in which the user terminal is located, provide stable, high-quality, and low-latency real-time communication, meet user needs, and improve user experience.

FIG. 7 is a schematic structural diagram of an electronic device provided by the present disclosure. As shown in FIG. 7 , the electronic device 700 includes a memory 710 and a processor 720 .

The memory 710 stores computer programs that can be executed by at least one processor 720 . The computer program is executed by at least one processor 720 to enable the electronic device to implement the communication method provided in any of the above embodiments.

Among them, the memory 710 and the processor 720 can be connected through the bus 730.

Relevant descriptions can be understood by referring to the relevant descriptions and effects corresponding to the method embodiments, and will not be described again here.

One embodiment of the present disclosure provides a computer-readable storage medium on which a computer program is stored. The computer program is executed by a processor to implement the communication method of any embodiment corresponding to FIG. 4 to FIG. 5 .

Among them, the computer-readable storage medium can be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

One embodiment of the present disclosure provides a computer program product, which includes computer-executable instructions. When the computer-executable instructions are executed by a processor, they are used to implement the communication method of any embodiment corresponding to FIG. 4 to FIG. 5 .

In the several embodiments provided in this disclosure, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple modules or components may be combined or integrated. to another system, or some features can be ignored, or not implemented. On the other hand, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, indirect coupling or communication connection of devices or modules, and may be in electrical, mechanical or other forms.

Other embodiments of the disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. The present disclosure is intended to cover any variations, uses, or adaptations of the disclosure that follow the general principles of the disclosure and include common common sense or customary technical means in the technical field that are not disclosed in the disclosure. . 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 is to be understood that the present disclosure is not limited to the precise structures described above and illustrated in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the disclosure is limited only by the appended claims.

Claims (11)

1. A communication system, comprising: the system comprises core network equipment, a ground station, a low-orbit satellite system, a mobile carrier in motion, a portable base station and a user terminal, wherein:

the ground station is connected with the core network equipment and is used for receiving real-time information transmitted by a corresponding server of the user terminal transmitted by the core network equipment so as to transmit the real-time information to the low-orbit satellite system;

the mobile communication 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;

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;

the mobile communication carrier comprises a mobile communication system, a satellite link and a master station system, wherein the mobile communication satellite communication system collects voice, data and image service information through a local area network switch and a router and transmits the voice, data and image service information to a satellite, and then the voice, data and image service information is transmitted to satellite receiving equipment on the ground through forwarding equipment arranged on a low-orbit satellite;

the portable base station comprises a baseband processing board, a feeder line and a remote radio unit RRU integrated antenna, wherein: the baseband processing board is used for converting received real-time information into an electric signal for communication and transmitting the electric signal to the RRU integrated antenna through the feeder line; 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; the portable base station comprises an easy Marco type micro base station or a BOOK-RRU type micro base station.

2. The communication system of claim 1, wherein the low-orbit satellite system comprises at least two low-orbit satellites, a low-orbit satellite closest to the mobile-in-motion carrier of the at least two low-orbit satellites being configured to receive real-time information transmitted by the mobile-in-motion carrier; and the low-orbit satellite systems transmit real-time information to the mobile carrier in motion in a laser communication mode.

3. The communication system according to claim 1 or 2, wherein the ground station comprises an optical distribution frame ODF, an optical-to-electrical conversion device, and a modulator, wherein:

the ODF is connected with the core network equipment and is used for receiving real-time information transmitted by the core network equipment;

the photoelectric conversion device is used for performing photoelectric conversion on the real-time information received by the ODF and transmitting the real-time information after photoelectric conversion to the modulator;

the modulator is connected with the low-orbit satellite system and is 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. A communication system according to claim 1 or 2, wherein the communication-in-motion mobile carrier comprises an electro-optical conversion device and a demodulator, wherein:

the demodulator is connected with the low-orbit satellite system and is 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 device 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.

5. A communication system according to claim 1 or 2, characterized in that the speed of movement of the mobile carrier is less than a speed threshold, which is used to characterize the maximum speed of uninterrupted transmission of signals.

6. A communication system according to claim 1 or 2, characterized in that the portable base station is deployed on the mobile-in-motion carrier.

7. A communication method applied to the communication-in-motion mobile carrier according to any one of claims 1 to 6, 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 corresponding server of 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.

8. The method of claim 7, wherein the low-orbit satellite system comprises at least two low-orbit satellites, and wherein the receiving real-time information from the low-orbit satellite system comprises:

determining a target low-orbit satellite in the low-orbit satellite system closest to the mobile-in-motion carrier;

and receiving real-time information transmitted by the target low-orbit satellite.

9. A communication device, characterized in that it is applied to a communication-in-motion mobile carrier according to any one of claims 1 to 6, the communication device comprising:

the receiving module is used for receiving the real-time information from the low-orbit satellite system, wherein the real-time information is sent to the core network equipment by the corresponding server of 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.

10. 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 7 or 8.

11. A computer readable storage medium having stored therein computer executable instructions which when executed by a processor are adapted to implement the communication method of claim 7 or 8.