CN114205924A - 5G routing base station, 5G micro base station and 5G communication network system - Google Patents
5G routing base station, 5G micro base station and 5G communication network system Download PDFInfo
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- CN114205924A CN114205924A CN202210102174.3A CN202210102174A CN114205924A CN 114205924 A CN114205924 A CN 114205924A CN 202210102174 A CN202210102174 A CN 202210102174A CN 114205924 A CN114205924 A CN 114205924A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention relates to a 5G routing base station, a 5G micro base station and a 5G communication network system, wherein the 5G routing base station comprises a base station baseband unit, a routing base station radio frequency unit, a wireless backhaul module, a combiner and an antenna unit; the base station baseband unit is provided with an interface connected with a core network; one end of the routing base station radio frequency unit is connected with the base station baseband unit, and the other end of the routing base station radio frequency unit is connected with the combiner; one end of the wireless backhaul module is connected to the base station baseband unit, the other end of the wireless backhaul module is connected to the combiner, and the wireless backhaul module is used for providing a wireless transmission link for a subordinate micro base station; the antenna unit is connected to the combiner. The wireless return module can remotely provide a wireless return link for the 5G micro base station, and the problem of construction of the micro base station which cannot provide a transmission link in some wired modes can be solved.
Description
Technical Field
The application relates to the technical field of communication, in particular to a 5G routing base station, a 5G micro base station and a 5G communication network system with a wireless loopback function.
Background
The fifth Generation Mobile Communication Technology (5th Generation Mobile Communication Technology, abbreviated as 5G) is a new Generation broadband Mobile Communication Technology with the characteristics of high speed, low time delay and large connection, and is a network infrastructure for realizing man-machine interconnection.
The International Telecommunications Union (ITU) defines three major application scenarios of 5G, namely enhanced mobile broadband (eMBB), ultra-high reliability low latency communication (urrllc) and mass machine type communication (mtc). Enhanced mobile broadband (eMBB) is mainly oriented to the explosive growth of mobile internet traffic, and provides more extreme application experience for mobile internet users; the ultra-high reliable low-delay communication (uRLLC) mainly faces to the application requirements of the vertical industry with extremely high requirements on delay and reliability, such as industrial control, telemedicine, automatic driving and the like; mass machine type communication (mMTC) mainly faces to the application requirements of smart cities, smart homes, environment monitoring and the like which aim at sensing and data acquisition.
Most base stations at home and abroad adopt wired optical cables or network cables to provide transmission links for the base stations, but in special scenes such as rooms, streets, roofs, roadways and the like, the wired optical cables or the network cables cannot be transmitted due to construction difficulty, construction cost or government policies. Such scenarios often fail to achieve good signal coverage. Especially in the 5G era, the cost of all-fiber networking is hard for operators to bear under the demand of high-density networking.
In these scenarios requiring the use of a micro base station, there is no wired optical cable or network cable as transmission, and no transmission link can be provided for the micro base station.
Disclosure of Invention
In view of the above problems, the present application provides a 5G routing base station with a wireless loopback function, a 5G micro base station, and a 5G communication network system, which solve the problem that in the existing special scenario, a transmission link cannot be provided for the micro base station because a wired optical cable and a network cable cannot be used as transmission.
In order to achieve the above object, the inventor provides a 5G routing base station with a wireless backhaul function, which includes a base station baseband unit, a routing base station radio frequency unit, a wireless backhaul module, a combiner, and an antenna unit;
the base station baseband unit is provided with an interface connected with a core network and is used for modulating and demodulating baseband data;
one end of the routing base station radio frequency unit is connected with the base station baseband unit, and the other end of the routing base station radio frequency unit is connected with the combiner;
one end of the wireless backhaul module is connected to the base station baseband unitA fourth amplifierThe other end of the wireless backhaul module is connected to the combiner, and the wireless backhaul module is used for providing a wireless transmission link for a lower micro base station;
the combiner is used for combining the wireless signals of the radio frequency unit of the routing base station and the wireless return module;
the antenna unit is connected to the combiner and used for transmitting wireless signals of the base station radio frequency unit and the wireless return module or receiving wireless signals returned by the mobile terminal or the micro base station.
Further optimizing, the routing base station radio frequency unit comprises an uplink radio frequency link, a downlink radio frequency link and a first duplexer;
the first downlink radio frequency link comprises a first digital up-conversion, a first digital-to-analog converter and a first transmitter, wherein the first digital up-conversion is connected with the first digital-to-analog converter, the first digital-to-analog converter is connected with the first transmitter, and the first transmitter is connected with the first duplexer;
the first uplink radio frequency link comprises a first digital down-conversion, a first analog-to-digital converter and a first receiver; one end of the first digital down-conversion is connected to the base station baseband unit, the other end of the first digital down-conversion is connected to a first analog-to-digital converter, the first analog-to-digital converter is connected to a first receiver, the first receiver is connected to a first duplexer, and the first duplexer is connected to a combiner.
Further preferably, the wireless backhaul module includes a first uplink backhaul link, a first downlink backhaul link, and a second duplexer;
an uplink interface is arranged between the first digital down-conversion of the first uplink radio frequency link and the first analog-to-digital converter, and a downlink interface is arranged between the first digital up-conversion of the first downlink radio frequency link and the first digital-to-analog converter;
one end of the first uplink backhaul link is connected to an uplink interface, and the other end of the first uplink backhaul link is connected to a second duplexer;
one end of the first downlink backhaul link is connected to the downlink interface, and the other end of the first downlink backhaul link is connected to the second duplexer.
Further preferably, the downlink backhaul link includes a first channel resource allocation unit, a first modem, a first power amplifier, and a second transmitter, where one end of the first channel resource allocation unit is connected to the downlink interface, the other end of the first channel resource allocation unit is connected to the first modem, the first modem is connected to the first power amplifier, the first power amplifier is connected to the second transmitter, and the second transmitter is connected to the second duplexer;
the first uplink backhaul link includes a second channel resource allocation unit, a second modem, a second power amplifier, and a second receiver, wherein one end of the second channel resource allocation unit is connected to the uplink interface, the other end of the second channel resource allocation unit is connected to the second modem, the second modem is connected to the second power amplifier, the second power amplifier is connected to the second receiver, and the second receiver is connected to the second duplexer.
Still provide another technical scheme: A5G micro base station with a wireless return function comprises a donor antenna, a third duplexer, a 5G return module, a micro base station radio frequency unit, a fourth duplexer and a transmitting antenna;
the donor antenna is connected to the third duplexer and used for point-to-point wireless connection with the upper level 5G routing base station;
the 5G backhaul module is used for carrying out signal transmission with a superior 5G routing base station and providing a transmission link for a micro base station radio frequency unit; the 5G backhaul module comprises a second uplink backhaul link and a second downlink backhaul link, one end of the second uplink backhaul link is connected to the third duplexer, and one end of the second downlink backhaul link is connected to the third duplexer;
the micro base station radio frequency unit comprises a second uplink radio frequency link and a second downlink radio frequency link, one end of the second uplink radio frequency link is connected to the second uplink return link, one end of the second uplink radio frequency link is connected to the fourth duplexer, one end of the second downlink radio frequency link is connected to the second downlink return link, and one end of the second downlink radio frequency link is connected to the fourth duplexer;
the fourth duplexer is connected to the transmitting antenna.
The further optimization is carried out, and the method,
the second downlink backhaul link includes a third modem, a third power amplifier, and a third receiver; one end of the third modem is connected to the second downlink radio frequency link, the other end of the third modem is connected to a third power amplifier, the other end of the third power amplifier is connected to a third receiver, and the third receiver is connected to a third duplexer;
the second uplink backhaul link includes a fourth modem, a fourth power amplifier, and a third transmitter, one end of the fourth modem is connected to the second uplink rf link, the other end of the fourth modem is connected to the fourth power amplifier, the fourth power amplifier is connected to the third transmitter, and the third transmitter is connected to the third duplexer.
Preferably, the second uplink radio frequency link includes a second digital down-conversion link, a second analog-to-digital converter, and a fourth receiver, one end of the second digital down-conversion link is connected to the second uplink backhaul link, the other end of the second digital down-conversion link is connected to the second analog-to-digital converter, the second analog-to-digital converter is connected to the fourth receiver, and the fourth receiver is connected to the fourth duplexer;
the second downlink radio frequency link comprises a second digital up-conversion, a second digital-to-analog converter and a fourth transmitter; one end of the second digital up-conversion is connected to the second downlink return link, the other end of the second digital up-conversion is connected to the second digital-to-analog converter, the second digital-to-analog converter is connected to the fourth transmitter, and the fourth transmitter is connected to the fourth duplexer.
Further preferably, the donor antenna is a parabolic antenna.
The other technical scheme is also provided, and the 5G communication network system comprises a 5G core network, a 5G routing base station and a 5G micro base station, wherein the 5G routing base station is the 5G routing base station;
the 5G micro base station is the 5G micro base station;
and the 5G core network is in communication connection with the 5G routing base station through a communication cable.
And further optimizing, the routing base station radio frequency unit is connected with the routing base station baseband unit through a CPRI interface.
Different from the prior art, in the technical scheme, the 5G routing base station with the wireless feedback function is arranged, the base station baseband unit provides an interface connected with the core network and the radio frequency unit of the routing base station, the base station baseband unit is in wired connection with the core network through the interface, and the base station baseband unit realizes the functions of modulation and demodulation, system synchronization, resource management, operation maintenance and the like of baseband data; the routing base station radio frequency unit is connected with the base station baseband unit through an interface to carry out signaling interaction, and the other side of the routing base station radio frequency unit is connected with the antenna unit through a combiner to provide wireless signal coverage for 5G users in the area; meanwhile, one end of the wireless return module is connected to the base station baseband unit, the other end of the wireless return module is connected to the antenna unit through the combiner, and the wireless return module can remotely provide a wireless return link for the 5G micro base station, so that the construction problem of the micro base station which cannot provide a transmission link in a wired mode can be solved, the traditional base station construction can be replaced, the manufacturing and using cost is greatly reduced, the maneuverability is good, and the wireless return module is suitable for being used in environments with limited transmission links, such as rural remote areas, roadsides, indoor coverage, small roadways and other scenes.
The above description of the present invention is only an overview of the technical solutions of the present application, and in order to make the technical solutions of the present application more clearly understood by those skilled in the art, the present invention may be further implemented according to the content described in the text and drawings of the present application, and in order to make the above objects, other objects, features, and advantages of the present application more easily understood, the following description is made in conjunction with the detailed description of the present application and the drawings.
Drawings
The drawings are only for purposes of illustrating the principles, implementations, applications, features, and effects of particular embodiments of the present application, as well as others related thereto, and are not to be construed as limiting the application.
In the drawings of the specification:
fig. 1 is a schematic structural diagram of a 5G routing base station according to an embodiment;
fig. 2 is another schematic structural diagram of a 5G routing base station according to the embodiment;
fig. 3 is a schematic structural diagram of a 5G micro base station according to an embodiment;
fig. 4 is a schematic structural diagram of a 5G communication network system according to an embodiment;
fig. 5 is another schematic structural diagram of a 5G communication network system according to the embodiment.
The reference numerals referred to in the above figures are explained below:
110. a base station baseband unit;
120. a routing base station radio frequency unit, 121, a first digital up-conversion, 122, a first digital-to-analog converter, 123, a first transmitter, 124, a first duplexer, 125, a first digital down-conversion, 126, a first analog-to-digital converter, 127, a first receiver;
130. a wireless backhaul module, 131, a first channel resource allocation unit, 132, a first modem, 133, a first power amplifier, 134, a second transmitter, 135, a second duplexer, 136, a second channel resource allocation unit, 137, a second modem, 138, a second power amplifier, 139, and a second receiver;
140. a combiner;
150. an antenna unit;
210. a donor antenna;
220. a third duplexer;
230. a 5G backhaul module, 231, a third modem, 232, a third power amplifier, 233, a third receiver, 234, a fourth modem, 235, a fourth power amplifier, 236, and a third transmitter;
240. a micro base station radio frequency unit 241, a second digital down-converter 242, a second analog-to-digital converter 243, a fourth receiver 244, a second digital up-converter 245, a second digital-to-analog converter 246, and a fourth transmitter;
250. a fourth duplexer;
260. a transmitting antenna;
310. a 5G core network;
320. a 5G routing base station;
330. 5G micro base station.
Detailed Description
In order to explain in detail possible application scenarios, technical principles, practical embodiments, and the like of the present application, the following detailed description is given with reference to the accompanying drawings in conjunction with the listed embodiments. The embodiments described herein are merely for more clearly illustrating the technical solutions of the present application, and therefore, the embodiments are only used as examples, and the scope of the present application is not limited thereby.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or related to other embodiments specifically defined. In principle, in the present application, the technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution as long as there is no technical contradiction or conflict.
Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the use of relational terms herein is intended only to describe particular embodiments and is not intended to limit the present application.
In the description of the present application, the term "and/or" is a expression for describing a logical relationship between objects, meaning that three relationships may exist, for example a and/or B, meaning: there are three cases of A, B, and both A and B. In addition, the character "/" herein generally indicates that the former and latter associated objects are in a logical relationship of "or".
In this application, terms such as "first" and "second" are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
Without further limitation, in this application, the use of "including," "comprising," "having," or other similar expressions in phrases and expressions of "including," "comprising," or "having," is intended to cover a non-exclusive inclusion, and such expressions do not exclude the presence of additional elements in a process, method, or article that includes the recited elements, such that a process, method, or article that includes a list of elements may include not only those elements but also other elements not expressly listed or inherent to such process, method, or article.
As is understood in the examination of the guidelines, the terms "greater than", "less than", "more than" and the like in this application are to be understood as excluding the number; the expressions "above", "below", "within" and the like are understood to include the present numbers. In addition, in the description of the embodiments of the present application, "a plurality" means two or more (including two), and expressions related to "a plurality" similar thereto are also understood, for example, "a plurality of groups", "a plurality of times", and the like, unless specifically defined otherwise.
In the description of the embodiments of the present application, spatially relative expressions such as "central," "longitudinal," "lateral," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used, and the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the specific embodiments or drawings and are only for convenience of describing the specific embodiments of the present application or for the convenience of the reader, and do not indicate or imply that the device or component in question must have a specific position, a specific orientation, or be constructed or operated in a specific orientation and therefore should not be construed as limiting the embodiments of the present application.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," and "disposed" used in the description of the embodiments of the present application are to be construed broadly. For example, the connection can be a fixed connection, a detachable connection, or an integrated arrangement; it can be a mechanical connection, an electrical connection, or a communication connection; they may be directly connected or indirectly connected through an intermediate; which may be communication within two elements or an interaction of two elements. Specific meanings of the above terms in the embodiments of the present application can be understood by those skilled in the art to which the present application pertains in accordance with specific situations.
Referring to fig. 1-2, the present embodiment provides a 5G routing base station with wireless backhaul function, which includes a base station baseband unit 110, a routing base station radio frequency unit 120, a wireless backhaul module 130, a combiner 140, and an antenna unit 150;
the base station baseband unit 110 is provided with an interface connected with a core network, and the base station baseband unit 110 is used for modulation and demodulation of baseband data;
one end of the routing base station radio frequency unit 120 is connected to the base station baseband unit 110, and the other end of the routing base station radio frequency unit 120 is connected to the combiner 140;
one end of the wireless backhaul module 130 is connected to the base station baseband unit 110, the other end of the wireless backhaul module 130 is connected to the combiner 140, and the wireless backhaul module 130 is configured to provide a wireless transmission link for a subordinate micro base station;
the combiner 140 is configured to combine the wireless signals of the routing base station radio frequency unit 120 and the wireless backhaul module 130;
the antenna unit 150 is connected to the combiner 140, and the antenna unit 150 is configured to transmit a wireless signal routed through the base station rf unit 120 and the wireless backhaul module 130 or receive a wireless signal backhaul by a mobile terminal or a micro base station.
The combiner 140 is generally used at the transmitting end, and is configured to combine two or more rf signals from different transmitters into one rf signal, which is sent to an antenna for transmission, and meanwhile, avoid mutual influence between signals at various ports.
By setting a 5G routing base station with a wireless feedback function, the base station baseband unit 110 provides an interface connected with the core network and the routing base station radio frequency unit 120, and is in wired connection with the core network through the interface, and the base station baseband unit 110 realizes the functions of modulation and demodulation, system synchronization, resource management, operation maintenance and the like of baseband data; the routing base station radio frequency unit 120 is connected with the base station baseband unit 110 through an interface for signaling interaction, and the other side of the routing base station radio frequency unit 120 is connected with the antenna unit 150 through the combiner 140, so as to provide wireless signal coverage for 5G users in the area; meanwhile, one end of the wireless backhaul module 130 is connected to the base station baseband unit 110, the other end is connected to the antenna unit 150 through the combiner 140, and the wireless backhaul module 130 can remotely provide a wireless backhaul link for a 5G micro base station, so that the problem of construction of a micro base station which cannot provide a transmission link in a wired manner can be solved, the traditional base station construction can be replaced, the manufacturing and using cost is greatly reduced, the maneuverability is good, and the wireless backhaul module is suitable for being used in an environment where the transmission link is limited, such as a remote rural area, a roadside, indoor coverage, a small tunnel and the like.
In some embodiments, the routing base station rf unit 120 includes a first uplink rf link, a first downlink rf link, and a first duplexer 124;
the first downlink radio frequency link comprises a first digital up-converter 121, a first digital-to-analog converter 122 and a first transmitter 123, the first digital up-converter 121 is connected to the first digital-to-analog converter 122, the first digital-to-analog converter 122 is connected to the first transmitter 123, and the first transmitter 123 is connected to the first duplexer 124;
the first uplink radio frequency link comprises a first digital down-converter 125, a first analog-to-digital converter 126, a first receiver 127; one end of the first digital down converter 125 is connected to the base station baseband unit 110, the other end of the first digital down converter 125 is connected to a first analog-to-digital converter 126, the first analog-to-digital converter 126 is connected to a first receiver 127, the first receiver 127 is connected to a first duplexer 124, and the first duplexer 124 is connected to a combiner 140.
Digital up-conversion is a critical digital signal processing module located between the baseband signal processing module and the high speed D/a in the radio transmission link. The baseband signal is modulated to medium-high frequency by a digital mode, then converted into an analog signal by a D/A conversion module, and finally transmitted out by an antenna.
The duplexer is the main accessory of the different-frequency duplex radio station and the relay station, and has the function of isolating the transmitted signal from the received signal and ensuring that the receiving and the transmitting can work normally at the same time. It is composed of two groups of band-pass filters with different frequencies to prevent the local transmitting signal from being transmitted to the receiver.
The digital down-conversion is divided into two basic modules, a numerically controlled Oscillator NCO (NU-mechanical Control Oscillator) mixing module and a decimation filtering module. The NCO module generates sine and cosine wave sample values, and then the sample values are multiplied by input data respectively to finish frequency mixing. Digital down-conversion refers to a mixing mode in which the intermediate frequency signal obtained after mixing in a superheterodyne receiver is lower than the frequency of the original signal.
The routing base station rf unit 120 transmits a wireless baseband signal to be transmitted through a first downlink rf link, wherein the wireless baseband signal is digitally modulated to a medium-high frequency through a first digital up-conversion 121, and then converted into an analog signal through a first digital-to-analog converter 122, and then the converted analog signal is transmitted through the antenna unit 150 at a first transmitter 123; when the first receiver 127 receives the wireless signal through the antenna unit 150, the wireless signal is converted into a digital signal through the second magic converter, and then is mixed through the first digital down-converter 125 and then transmitted to the base station baseband unit 110.
In some embodiments, the wireless backhaul module 130 includes a first uplink backhaul link, a first downlink backhaul link, and a second duplexer 135;
an uplink interface is arranged between the first digital down-conversion 125 and the first analog-to-digital converter 126 of the first uplink radio frequency link, and a downlink interface is arranged between the first digital up-conversion 121 and the first digital-to-analog converter 122 of the first downlink radio frequency link;
one end of the first uplink backhaul link is connected to the uplink interface, and the other end is connected to the second duplexer 135;
one end of the first downlink backhaul link is connected to the downlink interface, and the other end is connected to the second duplexer 135.
By providing an uplink interface between the first digital down-converter 125 and the first analog-to-digital converter 126 of the first uplink rf link and a downlink interface between the first digital up-converter 121 and the first digital-to-analog converter 122 of the first downlink rf link, the first uplink backhaul link of the wireless backhaul module 130 can be connected to the base station baseband unit 110 through the uplink interface, and the first downlink backhaul link of the wireless backhaul module 130 can be connected to the base station baseband unit 110 through the downlink interface, so as to implement common routing of the first digital up-converter 121 and the second digital up-converter in the base station rf unit 120; in other embodiments, additional digital up-conversion and digital down-conversion may be provided in the wireless backhaul module 130, such that the first uplink backhaul link can be connected to the base station baseband unit 110 through digital down-conversion, and the first downlink backhaul link can be connected to the base station baseband unit 110 through digital up-conversion.
In some embodiments, the downstream backhaul link includes a first channel resource allocation unit 131, a first modem 132, a first power amplifier 133, and a second transmitter 134, one end of the first channel resource allocation unit 131 is connected to the downstream interface, the other end of the first channel resource allocation unit 131 is connected to the first modem 132, the first modem 132 is connected to the first power amplifier 133, the first power amplifier 133 is connected to the second transmitter 134, and the second transmitter 134 is connected to the second duplexer 135;
the first uplink backhaul link includes a second channel resource allocation unit 136, a second modem 137, a second power amplifier 138, and a second receiver 139, one end of the second channel resource allocation unit 136 is connected to the uplink interface, the other end of the second channel resource allocation unit 136 is connected to the second modem 137, the second modem 137 is connected to the second power amplifier, the second power amplifier 138 is connected to the second receiver 139, and the second receiver 139 is connected to the second duplexer 135.
A Modem is a short name for a Modulator and a Demodulator, is called a Modem in chinese, is called a cat in person according to a harmonic tone of a Modem, and is an electronic device capable of implementing modulation and demodulation functions required for communication. Typically consisting of a modulator and a demodulator. At a transmitting end, modulating a digital signal generated by a serial port of a computer into an analog signal which can be transmitted through a telephone line; at the receiving end, the modem converts the analog signal input into computer into corresponding digital signal, and sends the digital signal to the computer interface.
The wireless backhaul module 130 is connected to the routing base station rf unit 120 through a signal resource allocation unit, and in a time-frequency resource block of a 5G routing base station channel, a plurality of time-frequency resources are set to provide a wireless transmission channel for a subordinate micro base station. When a wireless transmission channel needs to be provided for the micro base station, the first signal resource allocation unit in the first downlink backhaul link provides a wireless transmission channel for the next micro base station through a plurality of time-frequency resources specially configured for the next micro base station in the time-frequency resource block of the base station baseband unit 110, and after modulation and demodulation are performed through the first modem 132 and amplification is performed through the first amplification power, the signal is transmitted through the second transmitter 134.
Referring to fig. 3, in another embodiment, a 5G micro base station with wireless backhaul function includes a donor antenna 210, a third duplexer 220, a 5G backhaul module 230, a micro base station rf unit 240, a fourth duplexer 250, and a transmitting antenna 260;
the donor antenna 210 is connected to the third duplexer 220, and the donor antenna 210 is used for point-to-point wireless connection with the upper 5G routing base station;
the 5G backhaul module 230 is configured to perform signal transmission with a superior 5G routing base station and provide a transmission link for the micro base station rf unit 240; the 5G backhaul module 230 includes a second uplink backhaul link and a second downlink backhaul link, one end of the second uplink backhaul link is connected to the third duplexer 220, and one end of the second downlink backhaul link is connected to the third duplexer 220;
the micro base station rf unit 240 includes a second uplink rf link and a second downlink rf link, where one end of the second uplink rf link is connected to the second uplink backhaul link, one end of the second uplink rf link is connected to the fourth duplexer 250, one end of the second downlink rf link is connected to the second downlink backhaul link, and one end of the second downlink rf link is connected to the fourth duplexer 250;
the fourth duplexer 250 is connected to a transmitting antenna 260.
The 5G micro base station is in point-to-point wireless connection with the 5G routing base station through the donor antenna 210; the 5G backhaul module 230 mainly functions to perform signal transmission with a superior 5G routing base station and provide a transmission link for the micro base station radio frequency unit 240 of the 5G micro base station, wherein the 5G backhaul module 230 performs wireless transmission link connection with the 5G routing base station through the donor antenna 210 and performs wired connection with the micro base station radio frequency unit 240 through an in-device interface, a second downlink backhaul link of the 5G backhaul module 230 receives a wireless backhaul signal of a most suitable 5G routing base station nearby, and a second uplink backhaul link transmits a backhaul signal of the 5G micro base station to respond to the 5G routing base station; the micro base station radio frequency unit 240 transmits the wireless signal through the second downlink radio frequency link to provide signal coverage for the equipment in the area; and simultaneously, receiving the signal returned by the equipment in the area through the second uplink. By adopting the 5G micro base station of the wireless transmission link, the construction problem of the micro base station which cannot provide the transmission link in some wired ways can be solved without relying on wired optical cables and network cables for transmission, the traditional base station construction can be replaced, the manufacturing and using cost is greatly reduced, the maneuverability is good, and the wireless transmission link is suitable for being used in the environment with limited transmission links, such as rural remote areas, roadside, indoor coverage, small lanes and other scenes.
In some embodiments, the second downstream backhaul link includes a third modem 231, a third power amplifier 232, and a third receiver 233; one end of the third modem 231 is connected to the second downlink rf link, the other end of the third modem 231 is connected to the third power amplifier 232, the other end of the third power amplifier 232 is connected to the third receiver 233, and the third receiver 233 is connected to the third duplexer 220;
the second uplink backhaul link includes a fourth modem 234, a fourth power amplifier 235 and a third transmitter 236, one end of the fourth modem 234 is connected to the second uplink rf link, the other end of the fourth modem 234 is connected to the fourth power amplifier 235, the fourth amplifier is connected to the third transmitter 236, and the third transmitter 236 is connected to the third duplexer 220.
After receiving the wireless backhaul signal sent by the 5G routing base station through the donor antenna 210, the second downlink backhaul link is received through the third receiver 233, amplified through the third power amplifier 232, and modulated and demodulated through the third modem 231 to the second downlink radio frequency link of the micro base station radio frequency unit 240; when the second uplink backhaul link receives the backhaul signal of the second uplink rf link, the signal is modulated and demodulated by the fourth modem 234, amplified by the fourth power amplifier 235, transmitted to the donor antenna 210 by the third transmitter 236, and transmitted to the 5G routing base station by the donor antenna 210.
In some embodiments, the second uplink rf link comprises a second digital down-converter 241, a second analog-to-digital converter 242 and a fourth receiver 243, one end of the second digital down-converter 241 is connected to the second uplink backhaul link, the other end of the second digital down-converter 241 is connected to the second analog-to-digital converter 242, the second analog-to-digital converter 242 is connected to the fourth receiver 243, and the fourth receiver 243 is connected to the fourth duplexer 250;
the second downlink radio frequency link comprises a second digital up-converter 244, a second digital-to-analog converter 245 and a fourth transmitter 246; one end of the second digital up-converter 244 is coupled to the second downstream backhaul link, the other end of the second digital up-converter 244 is coupled to a second digital-to-analog converter 245, the second digital-to-analog converter 245 is coupled to a fourth transmitter 246, and the fourth transmitter 246 is coupled to a fourth duplexer 250.
When the micro base station rf unit 240 receives the wireless backhaul signal sent by the 5G backhaul module 230, the wireless backhaul signal is converted into a medium-high frequency signal by the second digital up-conversion 244 in the first downlink rf link, then the medium-high frequency signal is converted into an analog signal by the second digital-to-analog converter 245, and the analog signal is transmitted by the fourth transmitter 246; when the wireless signal is received by the fourth receiver 243, the wireless signal is converted into a digital signal by the second analog-to-digital converter 242, and then the digital signal is mixed by the second digital down-conversion 241 and then transmitted to the 5G routing base station through the second uplink backhaul link.
In certain embodiments, the donor antenna 210 is a parabolic antenna. Considering that the donor antenna 210 performs point-to-point wireless connection for the 5G micro base station and the 5G routing base station, the donor antenna 210 employs a parabolic antenna with good directivity. A parabolic antenna refers to a planar antenna consisting of a parabolic reflector and an illuminator (feed) located at its focal point. Usually, a metal paraboloid of revolution, a cut paraboloid of revolution or a cylindrical paraboloid is used as a reflector, and a horn or a dipole with a reflector is used as a feed source. The main advantage of a parabolic antenna is its high directivity. It functions like a searchlight or flashlight reflector, focusing radio waves to a narrow beam in a particular direction, or receiving radio waves from a particular direction.
Referring to fig. 1-5, in another embodiment, a 5G communication network system includes a 5G core network 310, a 5G routing base station 320 and a 5G micro base station 330, where the 5G routing base station 320 includes a base station baseband unit 110, a routing base station rf unit 120, a wireless backhaul module 130, a combiner 140 and an antenna unit 150;
the base station baseband unit 110 is provided with an interface connected with a core network, and the base station baseband unit 110 is used for modulation and demodulation of baseband data;
one end of the routing base station radio frequency unit 120 is connected to the base station baseband unit 110, and the other end of the routing base station radio frequency unit 120 is connected to the combiner 140;
one end of the wireless backhaul module 130 is connected to the base station baseband unit 110, the other end of the wireless backhaul module 130 is connected to the combiner 140, and the wireless backhaul module 130 is configured to provide a wireless transmission link for a subordinate micro base station;
the combiner 140 is configured to combine the wireless signals of the routing base station radio frequency unit 120 and the wireless backhaul module 130;
the antenna unit 150 is connected to the combiner 140, and the antenna unit 150 is configured to transmit a wireless signal routed through the base station rf unit 120 and the wireless backhaul module 130 or receive a wireless signal backhaul by a mobile terminal or a micro base station.
The 5G micro base station 330 includes a donor antenna 210, a third duplexer 220, a 5G backhaul module 230, a micro base station radio frequency unit 240, a fourth duplexer 250, and a transmitting antenna 260;
the donor antenna 210 is connected to the third duplexer 220, and the donor antenna 210 is used for point-to-point wireless connection with the upper 5G routing base station 320;
the 5G backhaul module 230 is configured to perform signal transmission with the upper level 5G routing base station 320 and provide a transmission link for the micro base station rf unit 240; the 5G backhaul module 230 includes a second uplink backhaul link and a second downlink backhaul link, one end of the second uplink backhaul link is connected to the third duplexer 220, and one end of the second downlink backhaul link is connected to the third duplexer 220;
the micro base station rf unit 240 includes a second uplink rf link and a second downlink rf link, where one end of the second uplink rf link is connected to the second uplink backhaul link, one end of the second uplink rf link is connected to the fourth duplexer 250, one end of the second downlink rf link is connected to the second downlink backhaul link, and one end of the second downlink rf link is connected to the fourth duplexer 250;
the fourth duplexer 250 is connected to a transmitting antenna 260.
The 5G core network 310 is communicatively connected to the 5G routing base station 320 through a communication cable.
By setting the 5G routing base station 320 with the wireless feedback function, the base station baseband unit 110 provides an interface connected with the core network and the routing base station radio frequency unit 120, and is in wired connection with the core network through the interface, and the base station baseband unit 110 realizes the functions of modulation and demodulation, system synchronization, resource management, operation maintenance and the like of baseband data; the routing base station radio frequency unit 120 is connected with the base station baseband unit 110 through an interface for signaling interaction, and the other side of the routing base station radio frequency unit 120 is connected with the antenna unit 150 through the combiner 140, so as to provide wireless signal coverage for 5G users in the area; meanwhile, one end of the wireless backhaul module 130 is connected to the base station baseband unit 110, the other end is connected to the antenna unit 150 through the combiner 140, and the wireless backhaul module 130 can remotely provide a wireless backhaul link for the 5G micro base station 330, so that the problem of building a micro base station which cannot provide a transmission link in some wired manner can be solved, the traditional base station construction can be replaced, the manufacturing and using cost is greatly reduced, the mobility is good, and the wireless backhaul module is suitable for being used in an environment where the transmission link is limited, such as a rural remote area, a roadside, indoor coverage, a small tunnel and the like.
The 5G micro base station 330 makes a point-to-point wireless connection with the 5G routing base station 320 through the donor antenna 210; the 5G backhaul module 230 mainly functions to transmit signals with the upper 5G routing base station 320 and provide a transmission link for the micro base station rf unit 240 of the 5G micro base station 330, where the 5G backhaul module 230 performs wireless transmission link connection with the 5G routing base station 320 through the donor antenna 210 and performs wired connection with the micro base station rf unit 240 through an in-device interface, a second downlink backhaul link of the 5G backhaul module 230 receives a wireless backhaul signal of the most suitable 5G routing base station 320 nearby, and a second uplink backhaul link transmits a backhaul signal of the 5G micro base station 330 in response to the 5G routing base station 320; the micro base station radio frequency unit 240 transmits the wireless signal through the second downlink radio frequency link to provide signal coverage for the equipment in the area; and simultaneously, receiving the signal returned by the equipment in the area through the second uplink. By adopting the 5G micro base station 330 of the wireless transmission link, the construction problem of the micro base station which cannot provide the transmission link in some wired ways can be solved without relying on wired optical cables and network cables for transmission, the traditional base station construction can be replaced, the manufacturing and using cost is greatly reduced, the maneuverability is good, and the wireless transmission link is suitable for being used in the environment with limited transmission links, such as rural remote areas, roadside, indoor coverage, small lanes and other scenes.
In some embodiments, the routing base station rf unit 120 includes a first uplink rf link, a first downlink rf link, and a first duplexer 124;
the first downlink radio frequency link comprises a first digital up-converter 121, a first digital-to-analog converter 122 and a first transmitter 123, the first digital up-converter 121 is connected to the first digital-to-analog converter 122, the first digital-to-analog converter 122 is connected to the first transmitter 123, and the first transmitter 123 is connected to the first duplexer 124;
the first uplink radio frequency link comprises a first digital down-converter 125, a first analog-to-digital converter 126, a first receiver 127; one end of the first digital down converter 125 is connected to the base station baseband unit 110, the other end of the first digital down converter 125 is connected to a first analog-to-digital converter 126, the first analog-to-digital converter 126 is connected to a first receiver 127, the first receiver 127 is connected to a first duplexer 124, and the first duplexer 124 is connected to a combiner 140.
Digital up-conversion is a critical digital signal processing module located between the baseband signal processing module and the high speed D/a in the radio transmission link. The baseband signal is modulated to medium-high frequency by a digital mode, then converted into an analog signal by a D/A conversion module, and finally transmitted out by an antenna.
The duplexer is the main accessory of the different-frequency duplex radio station and the relay station, and has the function of isolating the transmitted signal from the received signal and ensuring that the receiving and the transmitting can work normally at the same time. It is composed of two groups of band-pass filters with different frequencies to prevent the local transmitting signal from being transmitted to the receiver.
The digital down-conversion is divided into two basic modules, a numerically controlled Oscillator NCO (NU-mechanical Control Oscillator) mixing module and a decimation filtering module. The NCO module generates sine and cosine wave sample values, and then the sample values are multiplied by input data respectively to finish frequency mixing. Digital down-conversion refers to a mixing mode in which the intermediate frequency signal obtained after mixing in a superheterodyne receiver is lower than the frequency of the original signal.
The routing base station rf unit 120 transmits a wireless baseband signal to be transmitted through a first downlink rf link, wherein the wireless baseband signal is digitally modulated to a medium-high frequency through a first digital up-conversion 121, and then converted into an analog signal through a first digital-to-analog converter 122, and then the converted analog signal is transmitted through the antenna unit 150 at a first transmitter 123; when the first receiver 127 receives the wireless signal through the antenna unit 150, the wireless signal is converted into a digital signal through the second magic converter, and then is mixed through the first digital down-converter 125 and then transmitted to the base station baseband unit 110.
In some embodiments, the wireless backhaul module 130 includes a first uplink backhaul link, a first downlink backhaul link, and a second duplexer 135;
an uplink interface is arranged between the first digital down-conversion 125 and the first analog-to-digital converter 126 of the first uplink radio frequency link, and a downlink interface is arranged between the first digital up-conversion 121 and the first digital-to-analog converter 122 of the first downlink radio frequency link;
one end of the first uplink backhaul link is connected to the uplink interface, and the other end is connected to the second duplexer 135;
one end of the first downlink backhaul link is connected to the downlink interface, and the other end is connected to the second duplexer 135.
By providing an uplink interface between the first digital down-converter 125 and the first analog-to-digital converter 126 of the first uplink rf link and a downlink interface between the first digital up-converter 121 and the first digital-to-analog converter 122 of the first downlink rf link, the first uplink backhaul link of the wireless backhaul module 130 can be connected to the base station baseband unit 110 through the uplink interface, and the first downlink backhaul link of the wireless backhaul module 130 can be connected to the base station baseband unit 110 through the downlink interface, so that the first digital up-converter 121 and the second digital up-converter 244 in the base station rf unit 120 can be shared; in other embodiments, additional digital up-conversion and digital down-conversion may be provided in the wireless backhaul module 130, such that the first uplink backhaul link can be connected to the base station baseband unit 110 through digital down-conversion, and the first downlink backhaul link can be connected to the base station baseband unit 110 through digital up-conversion.
In some embodiments, the downstream backhaul link includes a first channel resource allocation unit 131, a first modem 132, a first power amplifier 133, and a second transmitter 134, one end of the first channel resource allocation unit 131 is connected to the downstream interface, the other end of the first channel resource allocation unit 131 is connected to the first modem 132, the first modem 132 is connected to the first power amplifier 133, the first power amplifier 133 is connected to the second transmitter 134, and the second transmitter 134 is connected to the second duplexer 135;
the first uplink backhaul link includes a second channel resource allocation unit 136, a second modem 137, a second power amplifier 138, and a second receiver 139, one end of the second channel resource allocation unit 136 is connected to the uplink interface, the other end of the second channel resource allocation unit 136 is connected to the second modem 137, the second modem 137 is connected to the second power amplifier, the second power amplifier 138 is connected to the second receiver 139, and the second receiver 139 is connected to the second duplexer 135.
A Modem is a short name for a Modulator and a Demodulator, is called a Modem in chinese, is called a cat in person according to a harmonic tone of a Modem, and is an electronic device capable of implementing modulation and demodulation functions required for communication. Typically consisting of a modulator and a demodulator. At a transmitting end, modulating a digital signal generated by a serial port of a computer into an analog signal which can be transmitted through a telephone line; at the receiving end, the modem converts the analog signal input into computer into corresponding digital signal, and sends the digital signal to the computer interface.
The wireless backhaul module 130 is connected to the routing base station rf unit 120 through a signal resource allocation unit, and in the time-frequency resource block of the 5G routing base station 320 channel, a plurality of time-frequency resources are set to provide a wireless transmission channel for a subordinate micro base station. When a wireless transmission channel needs to be provided for the micro base station, the first signal resource allocation unit in the first downlink backhaul link provides a wireless transmission channel for the next micro base station through a plurality of time-frequency resources specially configured for the next micro base station in the time-frequency resource block of the base station baseband unit 110, and after modulation and demodulation are performed through the first modem 132 and amplification is performed through the first amplification power, the signal is transmitted through the second transmitter 134.
In some embodiments, the second uplink backhaul link includes a third modem 231, a third power amplifier 232, and a third receiver 233; one end of the third modem 231 is connected to the second uplink rf link, the other end of the third modem 231 is connected to the third power amplifier 232, the other end of the third power amplifier 232 is connected to the third receiver 233, and the third receiver 233 is connected to the third duplexer 220;
the second downlink backhaul link includes a fourth modem 234, a fourth power amplifier 235 and a third transmitter 236, one end of the fourth modem 234 is connected to the second downlink rf link, the other end of the fourth modem 234 is connected to the fourth power amplifier 235, the fourth amplifier is connected to the third transmitter 236, and the third transmitter 236 is connected to the third duplexer 220.
After receiving the wireless backhaul signal sent by the 5G routing base station 320 through the donor antenna 210, the second downlink backhaul link is modulated and demodulated through the third modem 231, amplified through the third power amplifier 232, and then transmitted to the second downlink rf link of the micro base station rf unit 240 through the drum third receiver 233; and when the second uplink backhaul link receives the backhaul signal via the third transmitter 236, it is amplified via the fourth power amplifier 235, modulated and demodulated via the fourth modem 234, and then transmitted to the 5G routing base station 320 via the donor antenna 210.
In some embodiments, the second uplink rf link comprises a second digital down-converter 241, a second analog-to-digital converter 242 and a fourth receiver 243, one end of the second digital down-converter 241 is connected to the second uplink backhaul link, the other end of the second digital down-converter 241 is connected to the second analog-to-digital converter 242, the second analog-to-digital converter 242 is connected to the fourth receiver 243, and the fourth receiver 243 is connected to the fourth duplexer 250;
the second downlink radio frequency link comprises a second digital up-converter 244, a second digital-to-analog converter 245 and a fourth transmitter 246; one end of the second digital up-converter 244 is coupled to the second downstream backhaul link, the other end of the second digital up-converter 244 is coupled to a second digital-to-analog converter 245, the second digital-to-analog converter 245 is coupled to a fourth transmitter 246, and the fourth transmitter 246 is coupled to a fourth duplexer 250.
When the micro base station rf unit 240 receives the wireless backhaul signal sent by the 5G backhaul module 230, the wireless backhaul signal is converted into a medium-high frequency signal by the second digital up-conversion 244 in the first downlink rf link, then the medium-high frequency signal is converted into an analog signal by the second digital-to-analog converter 245, and the analog signal is transmitted by the fourth transmitter 246; when the wireless signal is received by the fourth receiver 243, the wireless signal is converted into a digital signal by the second analog-to-digital converter 242, and then is transmitted to the 5G routing base station 320 through the second uplink backhaul link after being mixed by the second digital down-conversion 241.
In certain embodiments, the donor antenna 210 is a parabolic antenna. Considering that the donor antenna 210 is a point-to-point wireless connection between the 5G micro base station 330 and the 5G routing base station 320, the donor antenna 210 uses a parabolic antenna with good directivity. A parabolic antenna refers to a planar antenna consisting of a parabolic reflector and an illuminator (feed) located at its focal point. Usually, a metal paraboloid of revolution, a cut paraboloid of revolution or a cylindrical paraboloid is used as a reflector, and a horn or a dipole with a reflector is used as a feed source. The main advantage of a parabolic antenna is its high directivity. It functions like a searchlight or flashlight reflector, focusing radio waves to a narrow beam in a particular direction, or receiving radio waves from a particular direction.
In some embodiments, the routing base station rf unit is connected to the routing base station baseband unit 110 through a CPRI interface. CPRI Interface (Common Public Radio Interface): the baseband signals are transmitted in a digital mode, and the digital interfaces of the baseband signals have two types, namely standard CPRI interfaces and standard OBSAI interfaces. Cpri (the Common Public Radio interface) defines an interface relationship between a base station data processing control unit rec (Radio Equipment control) and a base station transceiver unit re (Radio Equipment), and a data structure thereof may be directly used for remote transmission of data of a repeater, so as to become a remote system of a base station.
Finally, it should be noted that, although the above embodiments have been described in the text and drawings of the present application, the scope of the patent protection of the present application is not limited thereby. All technical solutions which are generated by replacing or modifying the equivalent structure or the equivalent flow according to the contents described in the text and the drawings of the present application, and which are directly or indirectly implemented in other related technical fields, are included in the scope of protection of the present application.
Claims (10)
1. A5G routing base station with a wireless feedback function is characterized by comprising a base station baseband unit, a routing base station radio frequency unit, a wireless feedback module, a combiner and an antenna unit;
the base station baseband unit is provided with an interface connected with a core network and is used for modulating and demodulating baseband data;
one end of the routing base station radio frequency unit is connected with the base station baseband unit, and the other end of the routing base station radio frequency unit is connected with the combiner;
one end of the wireless backhaul module is connected to the base station baseband unit, the other end of the wireless backhaul module is connected to the combiner, and the wireless backhaul module is used for providing a wireless transmission link for a subordinate micro base station;
the combiner is used for combining the wireless signals of the radio frequency unit of the routing base station and the wireless return module;
the antenna unit is connected to the combiner and used for transmitting wireless signals of the base station radio frequency unit and the wireless return module or receiving wireless signals returned by the mobile terminal or the micro base station.
2. The 5G routing base station with wireless loopback function of claim 1, wherein the routing base station radio frequency unit comprises an uplink radio frequency link, a downlink radio frequency link and a first duplexer;
the first downlink radio frequency link comprises a first digital up-conversion, a first digital-to-analog converter and a first transmitter, wherein the first digital up-conversion is connected with the first digital-to-analog converter, the first digital-to-analog converter is connected with the first transmitter, and the first transmitter is connected with the first duplexer;
the first uplink radio frequency link comprises a first digital down-conversion, a first analog-to-digital converter and a first receiver; one end of the first digital down-conversion is connected to the base station baseband unit, the other end of the first digital down-conversion is connected to a first analog-to-digital converter, the first analog-to-digital converter is connected to a first receiver, the first receiver is connected to a first duplexer, and the first duplexer is connected to a combiner.
3. The wireless backhaul capable 5G routing base station of claim 2, wherein the wireless backhaul module comprises a first uplink backhaul link, a first downlink backhaul link, and a second duplexer;
an uplink interface is arranged between the first digital down-conversion of the first uplink radio frequency link and the first analog-to-digital converter, and a downlink interface is arranged between the first digital up-conversion of the first downlink radio frequency link and the first digital-to-analog converter;
one end of the first uplink backhaul link is connected to an uplink interface, and the other end of the first uplink backhaul link is connected to a second duplexer;
one end of the first downlink backhaul link is connected to the downlink interface, and the other end of the first downlink backhaul link is connected to the second duplexer.
4. The wireless backhaul capable 5G routing base station of claim 3, wherein the downlink backhaul link comprises a first channel resource allocation unit, a first modem, a first power amplifier and a second transmitter, one end of the first channel resource allocation unit is connected to the downlink interface, the other end of the first channel resource allocation unit is connected to the first modem, the first modem is connected to the first power amplifier, the first power amplifier is connected to the second transmitter, and the second transmitter is connected to the second duplexer;
the first uplink backhaul link includes a second channel resource allocation unit, a second modem, a second power amplifier, and a second receiver, wherein one end of the second channel resource allocation unit is connected to the uplink interface, the other end of the second channel resource allocation unit is connected to the second modem, the second modem is connected to the second power amplifier, the second power amplifier is connected to the second receiver, and the second receiver is connected to the second duplexer.
5. A5G micro base station with a wireless return function is characterized by comprising a donor antenna, a third duplexer, a 5G return module, a micro base station radio frequency unit, a fourth duplexer and a transmitting antenna;
the donor antenna is connected to the third duplexer and used for point-to-point wireless connection with the upper level 5G routing base station;
the 5G backhaul module is used for carrying out signal transmission with a superior 5G routing base station and providing a transmission link for a micro base station radio frequency unit; the 5G backhaul module comprises a second uplink backhaul link and a second downlink backhaul link, one end of the second uplink backhaul link is connected to the third duplexer, and one end of the second downlink backhaul link is connected to the third duplexer;
the micro base station radio frequency unit comprises a second uplink radio frequency link and a second downlink radio frequency link, one end of the second uplink radio frequency link is connected to the second uplink return link, one end of the second uplink radio frequency link is connected to the fourth duplexer, one end of the second downlink radio frequency link is connected to the second downlink return link, and one end of the second downlink radio frequency link is connected to the fourth duplexer;
the fourth duplexer is connected to the transmitting antenna.
6. The 5G micro base station with wireless backhaul function according to claim 5,
the second downlink backhaul link includes a third modem, a third power amplifier, and a third receiver; one end of the third modem is connected to the second downlink radio frequency link, the other end of the third modem is connected to a third power amplifier, the other end of the third power amplifier is connected to a third receiver, and the third receiver is connected to a third duplexer;
the second uplink backhaul link includes a fourth modem, a fourth power amplifier, and a third transmitter, one end of the fourth modem is connected to the second uplink rf link, the other end of the fourth modem is connected to the fourth power amplifier, the fourth power amplifier is connected to the third transmitter, and the third transmitter is connected to the third duplexer.
7. The 5G micro base station with wireless backhaul of claim 5, wherein the second uplink radio frequency link comprises a second digital down-converter, a second A/D converter and a fourth receiver, one end of the second digital down-converter is connected to the second uplink backhaul link, the other end of the second digital down-converter is connected to the second A/D converter, the second A/D converter is connected to the fourth receiver, and the fourth receiver is connected to the fourth duplexer;
the second downlink radio frequency link comprises a second digital up-conversion, a second digital-to-analog converter and a fourth transmitter; one end of the second digital up-conversion is connected to the second downlink return link, the other end of the second digital up-conversion is connected to the second digital-to-analog converter, the second digital-to-analog converter is connected to the fourth transmitter, and the fourth transmitter is connected to the fourth duplexer.
8. The 5G micro base station with wireless backhaul function of claim 5, wherein the donor antenna is a parabolic antenna.
9. A5G communication network system is characterized by comprising a 5G core network, a 5G routing base station and a 5G micro base station, wherein the 5G routing base station is the 5G routing base station in any one of claims 1 to 4;
the 5G micro base station is the 5G micro base station in any one of claims 5-8;
and the 5G core network is in communication connection with the 5G routing base station through a communication cable.
10. The 5G communication network system according to claim 9, wherein the routing base station rf unit is connected to the routing base station baseband unit via a CPRI interface.
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