Communication device

Abstract

The invention provides a communication device, belongs to the technical field of communication, and can solve the problems that an existing communication device is low in signal transmission rate and complex in structure. The communication equipment comprises a plurality of antenna units, a plurality of communication modules and a network processor, the communication module comprises a signal transmission link and a signal conversion module; one antenna unit is electrically connected with a signal transmission link of one communication module; the signal transmission link is at least configured to receive a base station signal received by the antenna unit connected with the signal transmission link and transmit the base station signal to the signal conversion module; the signal conversion module is at least configured to convert the received base station signal and transmit the converted base station signal to the network processor; and the network processor is at least configured to fuse the converted base station signals output by the signal conversion modules and transmit the fused base station signals to a user side. The communication equipment disclosed by the invention has the advantage of high signal transmission rate.

Description

Technical Field

[0001] The present disclosure belongs to the field of communication technologies, and particularly relates to a communication device. Background Art

[0002] Marine communication plays an important role in various marine activity fields. Marine communication refers to communication carried out in waters such as the ocean, gulf, or strait, and marine activities include marine navigation, fishery, offshore oil exploration, marine rescue, etc. According to different communication methods, marine communication systems can be roughly divided into two types: satellite-based marine communication systems and coast-based marine communication systems, which respectively meet different communication requirements.

[0003] However, although the satellite-based marine communication system can achieve global coverage by virtue of satellites providing wide-area connections and networking between satellites, it has problems such as high communication costs and low resource utilization; although the coast-based marine communication system can provide high-speed communication services for offshore users by virtue of the construction of coastal base stations, due to the limited deployment of base stations, compared with satellite networks, the coast-based marine communication system has the disadvantage of limited communication coverage. A relatively innovative solution is to use 700 MHz coastal base stations for ultra-long-range coverage in cooperation with ferry cabin repeaters to enhance the coverage range. However, since this solution uses omnidirectional antennas, the communication system has problems such as low radiation efficiency, and the communication system adopted by this solution is large in size and not easy to install; at the same time, the repeater is a relay amplification of wireless information, and the user terminal must be equipped with a 5G module, which has high requirements for user equipment, and is prone to self-oscillation in the case of a large number of ships, seriously affecting the Internet experience.

[0004] Therefore, there is an urgent need to provide a high-performance marine communication device with fast transmission rate, simple logic and high efficiency. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. On the one hand, a communication device is provided, which is characterized in that it includes a plurality of antenna units, a plurality of communication modules, and a network processor; the communication module includes: a signal transmission link and a signal conversion module; one of the antenna units is electrically connected to the signal transmission link of one of the communication modules; the signal transmission link is at least configured to receive the base station signal received by the antenna unit connected thereto and transmit the base station signal to the signal conversion module; the signal conversion module is at least configured to convert the received base station signal and transmit the converted base station signal to the network processor; the network processor is at least configured to fuse the converted base station signals output by each of the signal conversion modules and transmit them to the user terminal.

[0006] In some alternative embodiments, the network processor is further configured to receive the data transmitted by the client, parse and convert the data transmitted by the client, generate transmission data packets, and transmit them to each of the signal conversion modules; the signal conversion module is further configured to convert the received transmission data packets to generate transmission signals and transmit them to the signal transmission link; the signal transmission link is further configured to transmit the transmission signals to the antenna unit, and radiate the transmission signals into space through the antenna unit.

[0007] In some alternative embodiments, the antenna unit includes at least one first oscillator and at least one second oscillator; the operating frequency of the first oscillator is less than that of the second oscillator; the signal transmission link includes a first transmission link and a second transmission link; the first transmission link is configured to implement signal transmission between the first oscillator and the signal conversion module corresponding to the antenna unit; the second transmission link is configured to implement signal transmission between the second oscillator and the signal conversion module corresponding to the antenna unit.

[0008] In some alternative embodiments, the first transmission link includes a first signal isolator, a first transmission link, a first reception link, and a second signal isolator; the first end of the first signal isolator is connected to the first oscillator, the second end of the first signal isolator is connected to the output end of the first transmission link, and the third end of the first signal isolator is connected to the input end of the first reception link; the first end of the second signal isolator is connected to the signal conversion module; the second end of the second signal isolator is connected to the input end of the first transmission link, and the third end of the second signal isolator is connected to the output end of the first reception link; the transmission signal output by the signal conversion module is transmitted to the first oscillator via the second signal isolator, the first transmission link, and the first signal isolator; the base station signal received by the first oscillator is transmitted to the signal conversion module via the first signal isolator, the first reception link, and the second signal isolator.

[0009] In some alternative embodiments, the second transmission link includes a first selector switch, a second transmission link, a second reception link, and a second selector switch; the first selector switch and the second selector switch are configured to control the operating states of the second transmission link and the second reception link under the control of the signal conversion module; the transmission signal emitted by the signal conversion module is transmitted to the second oscillator via the second selector switch, the second transmission link, and the first selector switch; the base station signal received by the second oscillator is transmitted to the signal conversion module via the first selector switch, the second reception link, and the second selector switch.

[0010] In some alternative embodiments, the signal conversion module includes a modulation and demodulation unit and a timing control unit; the modulation and demodulation unit is configured to convert the base station signal and convert the transmission data packet; the timing control unit is configured to send a transmission enable signal or a reception enable signal to the first gating switch and the second gating switch according to uplink and downlink time slots, so that the first gating switch and the second gating switch control the second transmission link to be turned on under the control of the transmission enable signal, and the first gating switch and the second gating switch control the second reception link to be turned on under the control of the reception enable signal.

[0011] In some alternative embodiments, the signal transmission link further includes a multiplexer; the multiplexer is configured to decompose the transmission signal generated by the signal conversion module into two sub-signals and transmit them to the first transmission link and the second transmission link respectively; and, after combining the base station signals received by the first transmission link and the second transmission link, transmit them to the signal conversion module.

[0012] In some alternative embodiments, the first transmission link includes: a first filter configured to filter the transmission signal emitted by the signal conversion module; a first power amplifier configured to amplify the filtered transmission signal and transmit it to the first oscillator via the first signal isolator.

[0013] In some alternative embodiments, the first reception link includes: a first low-noise amplifier configured to amplify the base station signal received by the first oscillator; a second filter configured to filter the amplified base station signal and transmit the filtered base station signal to the signal conversion module via the second signal isolator.

[0014] In some alternative embodiments, the second transmission link includes: a first attenuator configured to adjust the signal strength of the transmission signal emitted by the signal conversion module; a third filter configured to filter the signal emitted by the first attenuator; a second power amplifier configured to amplify the signal filtered by the third filter and transmit it to the second oscillator via the first gating switch.

[0015] In some alternative embodiments, the second reception link includes: a second low-noise amplifier configured to amplify the base station signal received by the second oscillator; a fourth filter configured to filter the amplified base station signal and transmit the filtered base station signal to the signal conversion module via the second gating switch. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the model of a satellite-based marine communication system in the related art.

[0017] Figure 2 It is a schematic diagram of the model of a coast-based marine communication system in the related art.

[0018] Figure 3 It is a block diagram of a solution for coverage enhancement using a 700 MHz repeater in the related art.

[0019] Figure 4 It is a schematic diagram of the module structure of a communication device based on a multi-sector antenna in the related art.

[0020] Figure 5 It is a schematic diagram of the module structure of the communication device provided by the present disclosure.

[0021] Figure 6 It is a schematic diagram of the antenna device of the present disclosure.

[0022] Figure 7 It is a schematic diagram of the structure of the antenna unit of the present disclosure.

[0023] Figure 8 It is a schematic diagram of the structure of the signal transmission link.

[0024] Figure 9 It is a schematic diagram of the structure of the first transmission link.

[0025] Figure 10 It is a schematic diagram of the structure of the first transmission link and the first reception link.

[0026] Figure 11 It is a schematic diagram of the structure of the second transmission link.

[0027] Figure 12 It is a timing diagram of the transmission enable signal and the reception enable signal.

[0028] Figure 13 It is a schematic diagram of the structure of the second transmission link and the second reception link.

[0029] Figure 14 It is a schematic diagram of the structure of another signal transmission link.

[0030] Among them, the reference signs are:

[0031] 1. Antenna device; 2. Determination module; 3. First signal conversion module; 4. Communication module; 41. Signal transmission link; 42. Signal conversion module; 5. Network processor; 11. Antenna unit; 110. Carrier substrate; 110a. Bottom plate; 110b. Side plate; 111. First oscillator; 112. Second oscillator; 411. First transmission link; 412. Second transmission link; 411a. First signal isolator; 411b. First transmission link; 411c. First reception link; 411d. Second signal isolator; 43. First filter; 44. First power amplifier; 45. First low-noise amplifier; 46. Second filter; 412a. First selection switch; 412b. Second transmission link; 412c. Second reception link; 412d. Second selection switch; 421. Modulation and demodulation unit; 422. Timing control unit; 47. First attenuator; 48. Third filter; 49. Second power amplifier; 50. Second low-noise amplifier; 51. Fourth filter; 60. Multiplexer. Detailed implementation manners

[0032] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0033] Unless otherwise defined, the technical terms or scientific terms used in this disclosure shall have the ordinary meanings understood by those of ordinary skill in the art to which this disclosure pertains. The "first", "second" and similar terms used in this disclosure do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms such as "a", "an" or "the" do not denote a quantity limitation, but mean that there is at least one. The terms such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0034] As used herein, "parallel" and "perpendicular" include the described situations and situations similar to the described ones, where the range of the similar situations is within an acceptable deviation range, and the acceptable deviation range is determined by those of ordinary skill in the art considering the measurements being discussed and the errors associated with the measurements of specific quantities (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallel and approximate parallel, and the acceptable deviation range for approximate parallel can be, for example, within a deviation of 5°; "perpendicular" includes absolute perpendicular and approximate perpendicular, and the acceptable deviation range for approximate perpendicular can also be, for example, within a deviation of 5°.

[0035] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can be that the layer or element is directly on the other layer or substrate, or there can also be an intermediate layer between the layer or element and the other layer or substrate.

[0036] In this document, "electrically connected" includes cases where components are connected together through elements having a certain electrical effect. There is no particular limitation on the "elements having a certain electrical effect" as long as they can transfer electrical signals between the components to be connected. Examples of the "elements having a certain electrical effect" include not only electrodes and wirings, but also switching elements such as transistors, resistors, inductors, capacitors, and other elements having various functions.

[0037] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views that are idealized exemplary drawings. In the drawings, the thickness of layers and regions is exaggerated for clarity. Therefore, variations in shape relative to the drawings due to, for example, manufacturing techniques and / or tolerances can be envisioned. Thus, the exemplary embodiments should not be construed as being limited to the shapes of the regions shown herein, but rather include shape deviations caused by, for example, manufacturing. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the regions of the device and are not intended to limit the scope of the exemplary embodiments.

[0038] According to different communication methods, the marine communication system can generally be roughly divided into two types: satellite-based marine communication systems and coast-based marine communication systems, which respectively meet different communication requirements.

[0039] Figure 1 Is a schematic model diagram of a satellite-based marine communication system; Figure 2 Is a schematic model diagram of a coast-based marine communication system.

[0040] Refer to Figure 1, the core of the satellite-based maritime communication system is the satellite, such as SpaceX Starlink, CloudSat, and SPECSI, etc. Thanks to the rapid development of low earth orbit (LEO) satellites in recent years, the satellite-based maritime communication system has become the most widely used maritime communication system at present. Its advantage lies in being able to provide wide-area connectivity with the help of satellites at high altitudes and achieve global coverage by networking between satellites. Moreover, with the rapid development of satellite systems, the satellite-based maritime communication system can realize positioning, navigation services, short message broadcasting, and application rescue services, etc. However, at present, most satellite systems only support medium- and low-speed communication services, and the cost of satellite communication and the communication cost of shipborne satellite terminals are high. Therefore, the satellite-based maritime communication system has problems such as high communication cost and low resource utilization rate.

[0041] Referring to Figure 2 , the coast-based communication system can be regarded as an extended part of the terrestrial communication system. It can combine coastal base stations and use mature terrestrial communication technologies such as terrestrial cellular networks, wireless metropolitan area networks, and wireless local area networks to provide high-capacity, low-cost, secure, and reliable communication services for offshore maritime communication. At present, with the development of 4G, 5G, and future wireless networks, the coast-based communication system can provide broadband communication services for offshore users, such as file downloading, real-time communication, and video surveillance data uploading, etc. Compared with the satellite-based maritime communication system, due to the limited deployment of coastal base stations, the coverage range of the coast-based communication system is very limited.

[0042] In order to expand the coverage range, the ship-based maritime communication system is often applied to the coast-based communication system in related technologies. Figure 3 It is a schematic block diagram of a coverage enhancement solution implemented by a 700 MHz repeater. Referring to Figure 2 and Figure 3, this solution takes advantage of the high flexibility and easy self - networking characteristics of the ship - based sea area communication system. Using large ships (such as ferries) as relay nodes to increase the signal strength and expand the communication coverage of the coast - based sea area communication system, providing connection and communication services for more maritime terminals. Its working process is roughly as follows: The weak electromagnetic wave signal received by the receiving antenna ANT1 is processed by the low - noise amplifier LNA, band - pass filter BPF, mixer Mixer, etc., then converted into a digital signal by the analog - to - digital signal converter DAC, and after being processed by the digital signal processor DSP, it is converted back into an analog signal by the digital - to - analog signal converter ADC. After performing operations such as mixing, filtering, and power amplification again, it is transmitted to the transmitting antenna ANT2, and the transmitting antenna ANT2 transmits the processed and amplified analog signal, thus achieving the purpose of enhancing the signal and expanding the signal coverage. However, this solution uses an omnidirectional antenna, resulting in low radiation efficiency in the communication system. Moreover, the communication system adopted by this solution is large in size and not convenient for installation. At the same time, the repeater amplifies the wireless information, and the terminal must be equipped with a 5G module, which has high requirements for user equipment and is prone to self - excitation in the case of many ships, seriously affecting the Internet experience.

[0043] In order to improve the stability of marine communication equipment, communication equipment based on multi - sector antennas is often used as a tool for marine information transmission currently.

[0044] Figure 4 is a schematic diagram of the module structure of the communication equipment based on multi - sector antennas in the related technology, as Figure 4 shown, this communication equipment includes an antenna device 1, a determination module 2, and a first signal conversion module 3. Among them, the antenna device 1 includes a plurality of antenna units 11, and each antenna unit 11 covers a different area. The antenna device 1 can be a three - sector antenna, a six - sector antenna, etc. Figure 4 Taking the six - sector antenna as an example, it includes six antenna units 11, and each antenna unit 11 covers a range of 60° horizontally. The determination module 2 is configured to determine the antenna unit 11 to be communicatively connected to the first signal conversion module 3 according to the signal strength information of the base station signals received by each antenna unit 11; for example, the determination module 2 can be a chasing station module 2, and the signal strength information of the received base station signals can be the power intensity of the base station signals. The first signal conversion module 3 is configured to perform signal conversion on the signals it receives for the access of user terminals; for example, the first signal conversion module 3 can be a 5G CPE module 3. Although such communication equipment can improve the stability and transmission distance of the communication equipment through multi - sector antennas, and at the same time effectively reduce the energy consumption of the communication equipment by using the chasing station module 2 to flexibly switch the sector with the maximum signal strength as the antenna for communicating with the base station, there are still problems that need to be optimized urgently. Next, the technical problems existing in the above - mentioned communication equipment will be briefly introduced.

[0045] On the one hand, since a signal detection unit or a monitoring unit needs to be set in the tracking station module 2 to detect the intensity of the base station signals received by each antenna unit 11, and this signal detection unit often introduces an additional noise factor to the system, thus affecting the signal transmission rate of the communication device; on the other hand, since the tracking station module 2 requires a complex logic control unit to control sector switching, and the frequent sector switching process will affect the signal transmission rate and the system response time; on the third hand, most 5G CPE modules only support a single SIM card slot and only allow access to one operator at the same time, resulting in the communication device only being able to provide a limited network rate. Therefore, generally speaking, the communication devices in the related technologies have problems of high system complexity, slow response speed, and low signal transmission rate.

[0046] To solve at least one of the above technical problems, the present disclosure provides a communication device.

[0047] Figure 5 It is a schematic diagram of the module structure of the communication device provided by the present disclosure. As Figure 5 shown, the communication device provided by the present disclosure includes an antenna device 1, a plurality of communication modules 4, and a network processor 5. Among them, the antenna device 1 is a transceiver antenna, which includes a plurality of antenna units 11; the communication module 4 includes a signal transmission link 41 and a signal conversion module 42 that are electrically connected. One antenna unit 11 is electrically connected to the signal transmission link 41 of one communication module 4. The signal transmission link 41 is at least configured to receive the base station signals received by the antenna unit 11 connected thereto and transmit the base station signals to the signal conversion module 42; the signal conversion module 42 is at least configured to convert the base station signals received by it and transmit the converted base station signals to the network processor 5; the network processor 5 is at least configured to fuse the converted base station signals output by each signal conversion module 42 and transmit them to the user terminal. Exemplarily, the signal conversion module 42 can be a 5G CPE module, a 4G CPE module, or an NB-IoT (Narrowband IoT) module, etc.; the signal conversion modules 42 in different communication modules 4 can be the same or different.

[0048] That is to say, when using the communication device provided by the present disclosure to implement the transmission of the base station signals to the user terminal, the path of the base station signals is: each antenna unit 11 receives the base station signals and transmits them to the signal conversion module 42 through the signal transmission link 41 corresponding to each connection. After each signal conversion module 42 converts and processes the base station signals, they are transmitted to the network processor 5. The network processor 5 fuses or aggregates the data transmitted by each signal conversion module 42 and transmits them to the user terminal.

[0049] The communication device provided by the present disclosure, by setting a corresponding communication module 4 for each antenna unit 11, and then connecting each communication module 4 to a network processor 5, has at least the following beneficial effects compared to the communication device based on a multi-sector antenna in the related art. On the one hand, the antenna units 11 of the communication device in the related art do not work at the same time, and it is necessary to set up a tracking module 2. During the communication process, the tracking module 2 is used to detect the signal strength of the base station signal received by each antenna unit 11 in turn, and the best antenna unit is determined based on the signal strength, and it is used as the antenna unit for communicating with the base station. That is, one of the core components of the communication device in the related art is the signal detection unit, and the signal detection unit often introduces additional noise, thereby reducing the transmission rate of the communication device. In the communication device provided by the present disclosure, each antenna unit 11 works simultaneously and independently, so there is no need to design a tracking module to detect the signal strength of each antenna unit 11. Therefore, the communication device provided by the present disclosure has a simple design, a small noise coefficient, and a high signal transmission rate. Secondly, in order to ensure that the antenna unit that establishes a communication connection with the base station is the optimal antenna unit in the related art, it is necessary to frequently switch sectors according to the orientation of the ship or the relative angle between the ship and the base station. The frequent switching process will increase the response time of the antenna device when receiving the signal, thereby affecting the signal transmission rate of the communication device. The communication device provided by the present disclosure has each antenna unit 11 that works independently at the same time without switching sectors, and there will be no temporary interruption of communication due to sector switching. Therefore, the antenna device provided by the present disclosure has the advantages of fast response speed, high transmission rate and good communication stability. Thirdly, in the related art, each sector shares the same 5G CPE module, but the 5G CPE module only supports a single SIM card slot and only allows access to one operator at the same time, resulting in the communication device being able to provide only limited network speed. In the communication device provided by the present disclosure, each antenna unit 11 is connected to a different signal conversion module 42. That is to say, multiple different signal conversion modules can be used in the same communication device, and different signal conversion modules can be connected to different operators. At this time, each antenna unit 11 works at the same time, which can increase the signal transmission rate of the communication device exponentially. Therefore, the communication device provided by the present disclosure can greatly improve the signal transmission rate due to the use of a multi-communication module and multi-link aggregation structure.

[0050] Further, in the communication device provided by the present disclosure, the network processor 5 is further configured to receive the data transmitted by the user terminal, parse and convert the data transmitted by the user terminal to generate a transmission data packet, and transmit the transmission data packet to each signal conversion module 42; the signal conversion module 42 is further configured to convert the received transmission data packet to generate a transmission signal and transmit the transmission signal to the signal transmission link 41; the signal transmission link 41 is further configured to transmit the transmission signal to the antenna unit 11 connected thereto correspondingly, and radiate the transmission signal to the external space through the antenna unit 11.

[0051] That is to say, when using the communication device provided by the present disclosure to realize the signal transmission from the user terminal to the base station, the transmission data path is as follows: the user terminal transmits the data to the network processor 5, and the network processor 5 parses and converts the received data to generate a transmission data packet and transmits the transmission data packet to the signal conversion module 42 in each communication module 4; each signal conversion module 42 converts the received transmission data packet to generate a transmission signal and transmits the transmission signal to its corresponding signal transmission link 41; the signal transmission link 41 transmits the transmission signal to the antenna unit 11 connected thereto correspondingly; the antenna unit 11 radiates the transmission signal to the external space and transmits it to the base station.

[0052] Next, the structure of the antenna unit 11 provided by the present disclosure will be introduced.

[0053] Figure 6 is a schematic structural diagram of the antenna device provided by the present disclosure; Figure 7 is a schematic structural diagram of the antenna unit. Refer to Figure 6 and Figure 7 , the antenna device 1 provided by the present disclosure may be a multi-sector antenna ( Figure 6 taking a six-sector antenna as an example); any antenna unit 11 may include a carrier substrate 110 and at least one first oscillator 111 and at least one second oscillator 112 disposed on the carrier substrate 110, wherein the operating frequency of the first oscillator 111 is less than the operating frequency of the second oscillator 112. Taking Figure 7 as an example, the carrier substrate 110 may include a bottom plate 110a and two side plates 110b connected to the bottom plate 110a. Both the bottom plate 110a and the side plates 110b are made of metal materials, which can not only enhance the structural stability of the antenna unit 11, but also be used to improve the front-to-back ratio and directivity of the antenna unit 11. Still taking Figure 7For example, the antenna unit 11 may include two first oscillators 111 and four second oscillators 112 disposed on the bottom plate 110a. Among them, some of the second oscillators 112 are disposed between the two first oscillators 111. Exemplarily, the center operating frequency of the first oscillator 111 is 700 MHz, and the center operating frequency of the second oscillator 112 is 2.6 GHz. In this article, the first oscillator 111 is also referred to as a low-frequency oscillator, and the second oscillator 112 is also referred to as a high-frequency oscillator.

[0054] In the communication device provided by the present disclosure, the antenna unit 11 includes oscillators of different frequency bands, and the number of low-frequency oscillators and high-frequency oscillators can be multiple, which can effectively broaden the bandwidth of the communication device and improve the gain of the antenna. Therefore, the communication device of the present disclosure has the advantages of wide frequency band, large capacity, and high gain.

[0055] When the antenna unit 11 includes a low-frequency oscillator and a high-frequency oscillator, the low-frequency oscillator and the high-frequency oscillator can be correspondingly connected to different transmission links. Next, the structures of the signal transmission links corresponding to the low-frequency oscillator and the high-frequency oscillator are introduced.

[0056] Figure 8 It is a schematic diagram of the module structure of the signal transmission link. As Figure 8 shown, the signal transmission link 41 includes a first transmission link 411 and a second transmission link 412. Among them, the first transmission link 411 is configured to implement signal transmission between the first oscillator 111 and the signal conversion module 42 corresponding to the antenna unit 11; the second transmission link 412 is configured to implement signal transmission between the second oscillator 112 and the signal conversion module 42 corresponding to the antenna unit 11.

[0057] In the communication device provided by the present disclosure, by separately setting transmission links for oscillators of different frequency bands, on the one hand, through the design of isolation links, the coupling and interference between high-frequency and low-frequency signals can be reduced; on the other hand, for the oscillator structures of different frequency bands, their transmission links can be separately optimized to improve signal transmission efficiency and signal quality.

[0058] Next, the structures of the first transmission link and the second transmission link are introduced.

[0059] Figure 9 It is a schematic diagram of the structure of the first transmission link. As Figure 9As shown, the first transmission link 411 includes a first signal isolator 411a, a first transmitting link 411b, a first receiving link 411c, and a second signal isolator 411d. Among them, the first end of the first signal isolator 411a is connected to the first oscillator 111, the second end of the first signal isolator 411a is connected to the output end of the first transmitting link 411b, and the third end of the first signal isolator 411a is connected to the input end of the first receiving link 411c; the first end of the second signal isolator 411d is connected to the signal conversion module 42, the second end of the second signal isolator 411d is connected to the input end of the first transmitting link 411b, and the third end of the second signal isolator 411d is connected to the output end of the first receiving link 411c. The first signal isolator 411a and the second signal isolator 411d are configured to isolate the transmitted signal and the received signal, so as to control the transmission path of the transmitted signal to be the first transmitting link 411b and the transmission path of the received signal to be the first receiving link 411c. Exemplarily, both the first signal isolator 411a and the second signal isolator 411d can be one of a duplexer or a circulator. For the case where a duplexer is used as the first signal isolator 411a and the second signal isolator 411d, those skilled in the art can understand that the operating mode of the first transmission link 411 is a frequency division mode, that is, the duplexer can isolate the transmitted signal and the received signal according to their different frequency bands, or isolate the first transmitting link and the first receiving link to prevent interference between the transmitted signal and the received signal.

[0060] Continue to refer to Figure 9 , the transmission path of the transmitted signal is: the transmitted signal output by the signal conversion module 42 is transmitted to the first oscillator 111 via the second signal isolator 411d, the first transmitting link 411b, and the first signal isolator 411a. The transmission path of the received signal is: the base station signal received by the first oscillator 111 is transmitted to the signal conversion module 42 via the first signal isolator 411a, the first receiving link 411c, and the second signal isolator 411d.

[0061] Figure 10 is a schematic structural diagram of the first transmitting link and the first receiving link. As shown in Figure 10As shown in the figure, the first transmission link 411b includes a first filter 43 and a first power amplifier 44. Among them, the first filter 43 is configured to filter the transmission signal sent by the signal conversion module 42; the first power amplifier 44 is configured to amplify the filtered transmission signal and transmit it to the first oscillator 111 via the first signal isolator 411a. The first receiving link 411c includes a first low-noise amplifier 45 and a second filter 46. Among them, the first low-noise amplifier 45 is configured to amplify the base station signal received by the first oscillator 111; the second filter 46 is configured to filter the amplified base station signal and transmit the filtered base station signal to the signal conversion module 42 via the second signal isolator 411d.

[0062] Figure 11 is a schematic structural diagram of the second transmission link. As Figure 11 shown in the figure, the second transmission link 412 includes a first gating switch 412a, a second transmission link 412b, a second receiving link 412c, and a second gating switch 412d. Among them, the first gating switch 412a and the second gating switch 412d are configured to control the working states of the second transmission link 412b and the second receiving link 412c under the control of the signal conversion module 42. Specifically, the signal conversion module 42 includes a modulation / demodulation unit 421 and a timing control unit 422. Among them, the modulation / demodulation unit 421 is configured to convert the base station signal and convert the transmission data packet; the timing control unit 422 is configured to send a transmission enable signal or a reception enable signal to the first gating switch 412a and the second gating switch 412d according to the uplink and downlink time slots, so that the first gating switch 412a and the second gating switch 412d control the second transmission link 412b to be turned on under the control of the transmission enable signal, and the first gating switch 412a and the second gating switch 412d control the second receiving link 412c to be turned on under the control of the reception enable signal. Exemplarily, both the first gating switch 412a and the second gating switch 412d can be radio frequency switches.

[0063] Continue to refer to Figure 11 , the transmission path of the transmission signal is: the transmission signal sent by the signal conversion module 42 is transmitted to the second oscillator 112 via the second gating switch 412d, the second transmission link 412b, and the first gating switch 412a. The transmission path of the received signal is: the base station signal received by the second oscillator 112 is transmitted to the modulation / demodulation unit 421 of the signal conversion module 42 via the first gating switch 412a, the second receiving link 412c, and the second gating switch 412d.

[0064] Those skilled in the art can understand that the operating mode of the second transmission link 412 is a time-division mode, that is, according to the timing control unit 422, the transmission enable or reception enable signal is sent according to the uplink and downlink time slots of the modulation and demodulation unit 421 (Modem), and the transmission link is turned on or the reception link is turned on by controlling the first gating switch and the second gating switch. Figure 12 It is a timing schematic diagram of the transmission enable signal and the reception enable signal, as Figure 12 shown. When the Modem is in the uplink time slot, the transmission enable signal is at an effective level and the reception enable signal is at a non-effective level. At this time, the second transmission link is turned on and the second reception link is turned off, and the communication device can only be used to transmit signals to the base station; on the contrary, when the Modem is in the downlink time slot, the transmission enable signal is at a non-effective level and the reception enable signal is at an effective level. At this time, the second transmission link is turned off and the second reception link is turned on, and the communication device can only receive signals sent by the base station. It should be understood that Figure 12 the effective level refers to the high level, and the non-effective level refers to the low level; "D" refers to downlink, and "U" refers to uplink.

[0065] Figure 13 is a schematic structural diagram of the second transmission link and the second reception link. As Figure 13 shown, the second transmission link 412b includes a first attenuator 47, a third filter 48, and a second power amplifier 49; wherein, the first attenuator 47 is configured to adjust the signal strength of the transmission signal sent by the signal conversion module 42 to prevent it from exceeding the maximum power that the communication device can withstand; the third filter 48 is configured to filter the signal sent by the first attenuator 47; the second power amplifier 49 is configured to amplify the signal filtered by the third filter 48 and transmit it to the second oscillator 112 via the first gating switch 412a. Continuing to refer to Figure 13 , the second reception link 412c includes: a second low-noise amplifier 50 and a fourth filter 51; wherein, the second low-noise amplifier 50 is configured to amplify the base station signal received by the second oscillator 112a; the fourth filter 51 is configured to filter the amplified base station signal and transmit the filtered base station signal to the signal conversion module 42 via the second gating switch 412d.

[0066] The first transmission link 411 and the second transmission link 412 can be as Figure 8 shown, respectively and separately connected to the signal conversion module 42, but not limited thereto. In some examples, the first transmission link 411 and the second transmission link 412 can be connected to the signal conversion module 42 through a multiplexer. Figure 14 It is a schematic structural diagram of another signal transmission link, as Figure 14As shown, in addition to the first transmission link 411 and the second transmission link 412, the signal transmission link 41 further includes a multiplexer 60; the multiplexer 60 is configured to decompose the transmission signal generated by the signal conversion module 42 into two sub-signals and transmit them to the first transmission link 411 and the second transmission link 412 respectively; and, after combining the base station signals received by the first transmission link 411 and the second transmission link 412, transmit them to the signal conversion module 42. In this example, by using a multiplexer to connect the transmission links of different oscillators and the signal conversion module, the circuit design and wiring complexity can be simplified.

[0067] It should be noted that for an antenna unit 11, when it includes a plurality of first oscillators 111, the plurality of first oscillators 111 can share the same first transmission link 411. Similarly, when the antenna unit includes a plurality of second oscillators 112, the plurality of second oscillators 112 can share the same second transmission link 412. At this time, the circuit design and line complexity can be further simplified.

[0068] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principles of the present invention. However, the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims

1. A communication device, characterized in that, It includes multiple antenna units, multiple communication modules, and a network processor; Each of the communication modules includes: a signal transmission link and a signal conversion module; One of the antenna units is electrically connected to the signal transmission link of one of the communication modules; The signal transmission link is at least configured to receive the base station signal received by the antenna unit connected thereto and transmit the base station signal to the signal conversion module; The signal conversion module is at least configured to convert the base station signal it receives and transmit the converted base station signal to the network processor; The network processor is at least configured to fuse the converted base station signals output by each of the signal conversion modules and transmit them to the user terminal.

2. The communication device according to claim 1, characterized in that, The network processor is further configured to receive the data transmitted by the user terminal, parse and convert the data transmitted by the user terminal, generate a transmission data packet, and transmit it to each of the signal conversion modules; The signal conversion module is further configured to convert the transmission data packet it receives to generate a transmission signal and transmit it to the signal transmission link; The signal transmission link is further configured to transmit the transmission signal to the antenna unit connected thereto correspondingly and radiate the transmission signal to the external space through the antenna unit.

3. The communication device according to claim 2, wherein The antenna unit includes at least one first oscillator and at least one second oscillator; the operating frequency of the first oscillator is less than that of the second oscillator; The signal transmission link includes a first transmission link and a second transmission link; The first transmission link is configured to achieve signal transmission between the first oscillator and the signal conversion module corresponding to this antenna unit; The second transmission link is configured to achieve signal transmission between the second oscillator and the signal conversion module corresponding to this antenna unit.

4. The communication device according to claim 3, wherein The first transmission link includes a first signal isolator, a first transmission link, a first reception link, and a second signal isolator; The first end of the first signal isolator is connected to the first oscillator, the second end of the first signal isolator is connected to the output end of the first transmission link, and the third end of the first signal isolator is connected to the input end of the first reception link; The first end of the second signal isolator is connected to the signal conversion module; the second end of the second signal isolator is connected to the input end of the first transmission link, and the third end of the second signal isolator is connected to the output end of the first reception link; The transmission signal output by the signal conversion module is transmitted to the first oscillator via the second signal isolator, the first transmission link, and the first signal isolator; the base station signal received by the first oscillator is transmitted to the signal conversion module via the first signal isolator, the first reception link, and the second signal isolator.

5. The communication device according to claim 3, characterized in that, The second transmission link includes a first selection switch, a second transmission link, a second reception link, and a second selection switch; The first selection switch and the second selection switch are configured to control the operating states of the second transmission link and the second reception link under the control of the signal conversion module; The transmission signal emitted by the signal conversion module is transmitted to the second oscillator via the second gating switch, the second transmission link, and the first gating switch; the base station signal received by the second oscillator is transmitted to the signal conversion module via the first gating switch, the second reception link, and the second gating switch.

6. The communication device according to claim 5, characterized in that The signal conversion module includes a modulation and demodulation unit and a timing control unit; The modulation and demodulation unit is configured to convert the base station signal and convert the transmission data packet; The timing control unit is configured to send a transmission enable signal or a reception enable signal to the first gating switch and the second gating switch according to the uplink and downlink time slots, so that the first gating switch and the second gating switch control the opening of the second transmission link under the control of the transmission enable signal, and the first gating switch and the second gating switch control the opening of the second reception link under the control of the reception enable signal.

7. The communication device according to claim 3, characterized in that The signal transmission link further includes a multiplexer; The multiplexer is configured to decompose the transmission signal generated by the signal conversion module into two sub-signals and transmit them to the first transmission link and the second transmission link respectively; and, to combine the base station signals received by the first transmission link and the second transmission link and then transmit them to the signal conversion module.

8. The communication device according to claim 4, wherein, The first transmission link includes: A first filter configured to filter the transmission signal emitted by the signal conversion module; A first power amplifier configured to amplify the filtered transmission signal and transmit it to the first oscillator via the first signal isolator.

9. The communication device according to claim 4, characterized in that, The first reception link includes: A first low noise amplifier configured to amplify the base station signal received by the first oscillator; A second filter configured to filter the amplified base station signal and transmit the filtered base station signal to the signal conversion module via the second signal isolator.

10. The communication device according to claim 5, characterized in that, The second transmission link includes: A first attenuator configured to adjust the signal strength of the transmission signal emitted by the signal conversion module; A third filter configured to filter the signal emitted by the first attenuator; A second power amplifier configured to amplify the signal filtered by the third filter and transmit it to the second oscillator via the first gating switch.

11. The communication device according to claim 5, characterized in that, The second reception link includes: A second low noise amplifier configured to amplify the base station signal received by the second oscillator; A fourth filter configured to filter the amplified base station signal and transmit the filtered base station signal to the signal conversion module via the second gating switch.

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