CN111510218A - 5G wireless network communication system - Google Patents
5G wireless network communication system Download PDFInfo
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- CN111510218A CN111510218A CN202010236918.1A CN202010236918A CN111510218A CN 111510218 A CN111510218 A CN 111510218A CN 202010236918 A CN202010236918 A CN 202010236918A CN 111510218 A CN111510218 A CN 111510218A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
- H04B10/25752—Optical arrangements for wireless networks
- H04B10/25758—Optical arrangements for wireless networks between a central unit and a single remote unit by means of an optical fibre
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
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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
Abstract
The invention relates to a 5G wireless network communication system which comprises a baseband processing unit, an extension unit connected with the baseband processing unit and a radio remote unit connected with the extension unit, wherein the baseband processing unit is used for being connected with a 5G core network and a GPS module, and the radio remote unit is used for being connected with an antenna. The invention can realize the coverage of the indoor 5G wireless network, improves the user experience and meets the requirement of a communication operator on the indoor deep coverage of the 5G wireless network.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to a communication system, and in particular, to a 5G wireless network communication system.
[ background of the invention ]
With the high-speed development of the communication industry, the number of terminals is continuously increased sharply, the flow is increased exponentially, different requirements of various scenes and different requirements of different industries, 4G L TE ((L ong Term Evolution, long Term Evolution)) gradually cannot meet the user requirements, and mainly shows that the user requirements cannot be customized, special scene requirements cannot be met, the user experience is poor, network slicing cannot be achieved, and the like.
The arrival of the 5G network has the advantages of stability, high speed, safety, reliability and low time delay, and brings about qualitative leap. And the method can provide differentiated services, interconnection of massive terminals, vertical industry application and open platforms. The system has huge market value in the industries of logistics, medical treatment, automatic driving, finance, entertainment, automatic production, live media broadcast, remote control and the like, and brings huge convenience.
The 5G performance improvement relative to the 4G performance improvement comprises the frequency spectrum efficiency improvement of 5-15 times, the energy efficiency and the cost improvement of more than one hundred times, the user experience rate of 1Gbps (namely, the transmission speed of the bandwidth is 1000 megabits per second), the connection density of 100 ten thousand per square kilometer, the flow density of dozens of Tbps (Terabits per second), the time delay of millisecond level, the moving speed of 500 km/h and the download peak rate of dozens of Gbps.
From the perspective of operator construction and user traffic, more than 70% of users are distributed indoors, 80% -90% of data services occur indoors, and indoor wireless network coverage is of great importance. Is the main scene for operators to obtain revenue.
Therefore, a communication system capable of realizing indoor 5G wireless network coverage is needed.
[ summary of the invention ]
The invention aims to overcome the defects of the technology and provide a 5G wireless network communication system, which can realize the coverage of an indoor 5G wireless network and meet the requirement of a communication operator on the indoor deep coverage of the 5G wireless network.
The invention provides a 5G wireless network communication system, which comprises a baseband processing unit, an extension unit connected with the baseband processing unit and a radio remote unit connected with the extension unit, wherein the baseband processing unit is used for being connected with a 5G core network and a GPS module, and the radio remote unit is used for being connected with an antenna;
in a downlink, the baseband processing unit is configured to process, after clock synchronization is completed through the GPS module, IP packet data output by the 5G core network into a digital optical signal, and output the digital optical signal to the extension unit, where the extension unit is configured to forward the received digital optical signal to the radio remote unit, and the radio remote unit is configured to process the received digital optical signal into a radio frequency signal, and output the radio frequency signal to the antenna;
in an uplink, the radio remote unit is configured to process a radio frequency signal output by the antenna into a digital optical signal and output the digital optical signal to the extension unit, the extension unit is configured to forward the received digital optical signal to the baseband processing unit, and the baseband processing unit is configured to process the received digital optical signal into a baseband signal and convert the baseband signal into IP packet data and output the IP packet data to the 5G core network.
Furthermore, the baseband processing unit is connected with the extension unit through an optical fiber, the extension unit is connected with the remote radio unit through a composite optical cable, the composite optical cable comprises an optical fiber and a cable, and the extension unit is further used for remotely supplying power to the remote radio unit.
Furthermore, the baseband processing unit is connected with the extension unit through an optical fiber, the extension unit is connected with the remote radio unit through a cable and an optical fiber, and the extension unit is further configured to remotely power the remote radio unit.
Furthermore, the number of the baseband processing units is one, the number of the extension units is N, the N extension units are sequentially connected in series, the baseband processing unit is connected with the first extension unit, and each extension unit is respectively connected with the M radio remote units.
Furthermore, the number of the baseband processing units is one, the number of the extension units is N, the N extension units are respectively connected with the baseband processing units, and each extension unit is respectively connected with the M radio remote units.
Furthermore, the number of the baseband processing units is one, the number of the extension units is N, and of the N extension units, a part of the extension units are sequentially connected in series, and a first extension unit thereof is connected with the baseband processing unit, the rest of the N extension units are respectively connected with the baseband processing unit, and each extension unit is respectively connected with the M radio remote units.
Further, the baseband processing unit includes a first optical port, a core network interface, a GPS interface, an X86 server, and an FEC card, an FH card, and a clock card respectively connected to an X86 server, where the first optical port is connected to the FH card, the core network interface is connected to the X86 server and is configured to connect to the 5G core network, and the GPS interface is connected to the clock card and is configured to connect to the GPS module.
Furthermore, the extension unit comprises a first digital processing module, a first power module, a power management module, a second optical port, a third optical port and a remote power supply interface, wherein the first power module is respectively connected with the first digital processing module and the power management module, the second optical port and the third optical port are respectively connected with the first digital processing module, and the remote power supply interface is connected with the power management module.
Furthermore, the remote radio unit includes a second digital processing module, a second power module and a power amplifier module, the second digital processing module is connected with the second power module and the power amplifier module respectively, and the second power module is connected with the power amplifier module.
Furthermore, the radio remote unit further includes a fourth optical port, an antenna interface and a power interface, the fourth optical port is connected to the second digital processing module, the antenna interface is connected to the power amplifier module and is configured to be connected to the antenna, and the power interface is connected to the second power module.
The invention can realize the coverage of the indoor 5G wireless network, improves the user experience and meets the requirement of a communication operator on the indoor deep coverage of the 5G wireless network.
[ description of the drawings ]
Fig. 1 is a block diagram illustrating a 5G wireless network communication system according to an embodiment of the present invention;
fig. 2 is a block diagram illustrating a first networking manner of the 5G wireless network communication system shown in fig. 1;
fig. 3 is a block diagram illustrating a second networking manner of the 5G wireless network communication system shown in fig. 1;
figure 4 is a block diagram illustration of a third networking approach of the 5G wireless network communication system shown in figure 1;
fig. 5 is a block diagram illustrating a fourth networking approach of the 5G wireless network communication system shown in fig. 1.
[ detailed description ] embodiments
The invention is further described below with reference to the figures and examples.
Referring to fig. 1, the 5G wireless network communication system provided by the present invention is mainly applied to coverage of an indoor 5G wireless network. The 5G wireless network communication system includes a baseband processing unit (BBU)10, an extension unit (HUB)20, and a Radio Remote Unit (RRU) 30. The baseband processing unit 10 and the extension unit 20 are connected by an optical fiber. The expansion unit 20 and the radio remote unit 30 are connected through a composite optical cable. The baseband processing unit 10 is used to connect with the 5G core network 40 and the GPS module 50 through an optical fiber and a feeder line, and the radio remote unit 30 is used to connect with the antenna 60 through a feeder line.
In the downlink, the baseband processing unit 10 is configured to process IP (internet protocol) packet data output by the 5G core network 40 into a digital optical signal after clock synchronization is completed through the GPS module 50, and output the digital optical signal to the extension unit 20, where the extension unit 20 is configured to forward the received digital optical signal to the remote radio unit 30 in a broadcast manner, the remote radio unit 30 is configured to process the received digital optical signal into a radio frequency signal, and output the radio frequency signal to the antenna 60, and the antenna 60 radiates electromagnetic waves with 5G signals to a specified area, thereby completing coverage of the 5G wireless network.
In the uplink, the radio remote unit 30 is configured to process a radio frequency signal output by the antenna 60 into a digital optical signal and output the digital optical signal to the extension unit 20, the extension unit 20 is configured to forward the received digital optical signal to the baseband processing unit 10 in a broadcast manner, and the baseband processing unit 10 is configured to process the received digital optical signal into a baseband signal and convert the baseband signal into IP packet data and output the IP packet data to the 5G core network 40.
The composite optical cable comprises an optical fiber and a cable, the extension unit 20 is configured to forward the received digital optical signal to the radio remote unit 30 through the optical fiber in the composite optical cable, and the extension unit 20 is further configured to remotely power the radio remote unit 30 through the cable in the composite optical cable.
It is understood that in another alternative, the optical fiber and the cable are separately arranged, that is, the extension unit 20 and the remote radio unit 30 are connected by the cable and the optical fiber, respectively, and likewise, the extension unit 20 can forward the received digital optical signal to the remote radio unit 30 by the optical fiber, and the extension unit 20 can remotely power the remote radio unit 30 by the cable.
By the structure, the coverage of the indoor 5G wireless network can be realized, the user experience is improved, and the requirement of a communication operator on the indoor deep coverage of the 5G wireless network is met; the optical fiber is adopted between the baseband processing unit 10 and the extension unit 20, and between the extension unit 20 and the radio remote unit 30 to transmit data, so that the transmission loss can be reduced, the energy is saved, the emission is reduced, the construction is simple and convenient, and the cost is reduced; the extension unit 20 can also realize remote power supply of the radio remote unit 30, can at least meet the requirement of 200 meters on remote power supply, and solves the problem of difficulty in construction and power taking.
The first networking mode of the 5G wireless network communication system of the invention is as follows:
the number of the baseband processing units 10 is one, the number of the extension units 20 is N, the N extension units 20 are sequentially connected in series, the baseband processing unit 10 is connected with the first extension unit 20, and each extension unit 20 is respectively connected with the M radio remote units 30. Assuming that N is 4 and M is 8, as shown in fig. 2 (only the last extension unit 20 is shown to be connected to 8 remote radio units 30 in fig. 2), the 4 extension units 20 are connected in series in sequence, the baseband processing unit 10 is connected to the first extension unit 20, and each extension unit 20 is connected to 8 remote radio units 30.
In downlink, after receiving the digital optical signal output by the baseband processing unit 10, the first expansion unit 20 branches first, and then forwards the digital optical signal to 8 remote radio units 30 and the second expansion unit 20 connected thereto in a broadcast manner after dividing into 9 paths, the second expansion unit 20 and the third expansion unit 20 have functions similar to those of the first expansion unit 20, and after receiving the digital optical signal output by the third expansion unit 20, the fourth expansion unit 20 branches first, and then forwards the digital optical signal to 8 remote radio units 30 connected thereto in a broadcast manner after dividing into 8 paths.
In the uplink, after the fourth extension unit 20 receives the digital optical signals output by the 8 remote radio units 30 connected thereto, the combining is performed first, and after combining one path, the combined path is forwarded to the third expansion unit 20 in a broadcast manner, after the third expansion unit 20 receives the digital optical signals output by the 8 radio remote units 30 connected thereto and the digital optical signals output by the fourth expansion unit 20, the first extension unit 20 combines the signals into one path and then forwards the combined signal to the second extension unit 20 in a broadcast manner, the second extension unit 20 has a similar function to the third extension unit 20, after receiving the digital optical signals output by the 8 radio remote units 30 connected to the first extension unit 20 and the digital optical signals output by the second extension unit 20, the signals are combined into one path and then forwarded to the baseband processing unit 10 in a broadcast manner.
The chain type networking mode can realize the coverage of a 5G wireless network in the scenes of tunnels, subways, highways, railways, underground coal mines and the like.
The second networking mode of the 5G wireless network communication system of the invention is as follows:
the number of the baseband processing units 10 is one, the number of the extension units 20 is N, the N extension units 20 are respectively connected with the baseband processing units 10, and each extension unit 20 is respectively connected with the M remote radio units 30. Assuming that N is 4 and M is 8, as shown in fig. 3 (only the extension unit 20 in the first path is shown in fig. 3 to be connected to 8 remote radio units 30), the 4 extension units 20 are respectively connected to the baseband processing unit 10, and each extension unit 20 is respectively connected to 8 remote radio units 30.
In the downlink, after receiving the digital optical signal output by the baseband processing unit 10, each expansion unit 20 branches the digital optical signal, divides the digital optical signal into 8 paths, and then forwards the digital optical signal to 8 remote radio units 30 connected thereto in a broadcast manner.
In the uplink, after receiving the digital optical signals output by the 8 remote radio units 30 connected to each extension unit 20, each extension unit combines the digital optical signals into one path, and then forwards the path to the baseband processing unit 10 in a broadcast manner.
The star networking mode can realize the coverage of a 5G wireless network in the scenes of stations, squares, theaters, banks, schools and the like.
The third networking mode of the 5G wireless network communication system is as follows:
the baseband processing unit 10 is one, the number of the extension units 20 is N, and of the N extension units 20, a part of the extension units 20 are sequentially connected in series, and the first extension unit 20 is connected with the baseband processing unit 10, the rest of the N extension units 20 are respectively connected with the baseband processing unit 10, and each extension unit 20 is respectively connected with the M radio remote units 30. Assuming that N is 7 and M is 8, as shown in fig. 4 (fig. 4 only shows that the last extension unit 20 in the first path is connected to 8 remote radio units 30), 4 of the 7 extension units 20 are connected in series in sequence, the first extension unit 20 is connected to the baseband processing unit 10, the remaining 3 extension units 20 of the 7 extension units 20 are respectively connected to the baseband processing unit 10, and each extension unit 20 is respectively connected to 8 remote radio units 30.
In the downlink, in the first path, after receiving the digital optical signal output by the baseband processing unit 10, the first extension unit 20 branches first, divides the digital optical signal into 9 paths, and then forwards the digital optical signal to 8 remote radio units 30 and the second extension unit 20 connected thereto in a broadcast manner, the second extension unit 20 and the third extension unit 20 have functions similar to those of the first extension unit 20, and after receiving the digital optical signal output by the third extension unit 20, the fourth extension unit 20 branches first, divides the digital optical signal into 8 paths, and then forwards the digital optical signal to 8 remote radio units 30 connected thereto in a broadcast manner.
After receiving the digital optical signal output by the baseband processing unit 10, the extension unit 20 in the second path branches the digital optical signal into 8 paths, and then forwards the digital optical signal to 8 remote radio units 30 connected to the extension unit in a broadcast manner.
The role of the expansion unit 20 in the third path and the expansion unit 20 in the fourth path is similar to the role of the expansion unit 20 in the second path.
In the uplink, in the first path, after the fourth extension unit 20 receives the digital optical signals output by the 8 remote radio units 30 connected thereto, the combining is performed first, and after combining one path, the combined path is forwarded to the third expansion unit 20 in a broadcast manner, after the third expansion unit 20 receives the digital optical signals output by the 8 radio remote units 30 connected thereto and the digital optical signals output by the fourth expansion unit 20, the first extension unit 20 combines the signals into one path and then forwards the combined signal to the second extension unit 20 in a broadcast manner, the second extension unit 20 has a similar function to the third extension unit 20, after receiving the digital optical signals output by the 8 radio remote units 30 connected to the first extension unit 20 and the digital optical signals output by the second extension unit 20, the signals are combined into one path and then forwarded to the baseband processing unit 10 in a broadcast manner.
After receiving the digital optical signals output by the 8 remote radio units 30 connected to the extension unit 20 in the second path, the extension unit combines the digital optical signals into one path and then forwards the path to the baseband processing unit 10 in a broadcast manner.
The role of the expansion unit 20 in the third path and the expansion unit 20 in the fourth path is similar to the role of the expansion unit 20 in the second path.
The star-chain hybrid networking mode can realize the coverage of a 5G wireless network in large-scale and ultra-large-scale scenes, such as airport terminal buildings, large-scale buildings, stadiums, convention and exhibition centers and the like.
The fourth networking mode of the 5G wireless network communication system is as follows:
the number of the baseband processing units 10 is one, the number of the extension units 20 is N, the N extension units 20 are equally divided into multiple paths, each path includes a plurality of extension units 20 connected in series in sequence, and each extension unit 20 is connected with the M radio remote units 30 respectively. Assuming that N is 8 and M is 8, as shown in fig. 5 (fig. 5 only shows that the last extension unit 20 in the first path is connected to 8 remote radio units 30), the 8 extension units 20 are divided into four paths, each path includes two extension units 20 connected in series in sequence, and each extension unit 20 is connected to 8 remote radio units 30.
In the downlink, in the first path, after receiving the digital optical signal output by the baseband processing unit 10, the first extension unit 20 branches first, divides the digital optical signal into 9 paths, and then forwards the digital optical signal to 8 remote radio units 30 and the second extension unit 20 connected thereto in a broadcast manner, and after receiving the digital optical signal output by the first extension unit 20, the second extension unit 20 branches first, divides the digital optical signal into 8 paths, and then forwards the digital optical signal to 8 remote radio units 30 connected thereto in a broadcast manner.
The role of the expansion unit 20 in the second path, the expansion unit 20 in the third path, and the expansion unit 20 in the fourth path is similar to that of the expansion unit 20 in the first path.
In the uplink, in the first path, after receiving the digital optical signals output by the 8 radio remote units 30 connected to the second extension unit 20, the second extension unit 20 combines the digital optical signals first, synthesizes one path, and then forwards the synthesized digital optical signals to the first extension unit 20 in a broadcast manner, and after receiving the digital optical signals output by the 8 radio remote units 30 connected to the first extension unit 20 and the digital optical signals output by the second extension unit 20, the first extension unit 20 combines the digital optical signals first, synthesizes one path, and then forwards the synthesized digital optical signals to the baseband processing unit 10 in a broadcast manner.
The role of the expansion unit 20 in the second path, the expansion unit 20 in the third path, and the expansion unit 20 in the fourth path is similar to that of the expansion unit 20 in the first path.
The networking mode can also realize the coverage of a 5G wireless network in large-scale and ultra-large-scale scenes, such as airport terminal buildings, large-scale buildings, stadiums, convention and exhibition centers and the like.
It can be understood that, in addition to the four networking modes, the networking mode of the present invention may also be other, for example, the extension unit 20 may also be cascaded to 3 levels, more than 3 levels, and the like, the baseband processing unit 10 may also be connected to five, more than five extension units 20, and the like in a star networking mode, and the networking mode may be set according to a specific application scenario, and different networking modes may be adopted in different scenarios, so that flexible networking may be implemented, and it is beneficial to the construction of a 5G wireless network of a communication operator. The number of the extension units and the number of the radio remote units can also be set according to the specific application scenario.
In this embodiment, the baseband processing unit 10 includes an X86 server 11 (a processor adopting cisc (Complex instruction set Computer) architecture), a first optical port, a core network interface, a GPS interface, and an FEC (Forward Error Correction) card 13, an FH (FrontHaul Forward) card 12, and a clock card 14 respectively connected to the X86 server 11. The first optical port is connected to the FH card 12 and to the expansion unit 20 via an optical fiber. The core network interface is connected with the X86 server 11 and is used for being connected with the 5G core network 40, and the core network interface is connected with the 5G core network 40 through an optical fiber. The GPS interface is connected with the clock card 14 and is used for being connected with the GPS module 50, and the GPS interface is connected with the GPS module 50 through a feeder line.
In the downlink, the clock card 14 is configured to implement clock synchronization of the baseband processing unit 10 through the GPS module 50, the X86 server 11 is configured to perform baseband processing, protocol stack processing, and the like on IP packet data output by the 5G core network 40 through a core network interface, the FEC card 13 is configured to perform processing such as encoding on a signal processed by the X86 server 11, and the FH card 12 is configured to perform digital processing such as transmission channel mapping, physical channel generation, framing, and modulation on a signal processed by the FEC card 13, so as to form a digital optical signal, and the digital optical signal can be transmitted to the extension unit 20 through the first optical interface.
In the uplink, the FH card 12 is configured to perform access channel search demodulation, dedicated channel demodulation, and the like on the digital optical signal output from the extension unit 20 through the first optical port, the FEC card 13 is configured to perform decoding, error correction, and the like on the signal processed by the FH card 12, and the X86 server 11 is configured to perform protocol stack processing, baseband processing, and the like on the signal processed by the FH card 12 to form a baseband signal and convert the baseband signal into IP packet data, and the IP packet data is transmittable to the 5G core network 40 through the core network interface.
The number of the first optical ports and the number of the core network interfaces correspond to the number of the extension units 20. The first optical interface is preferably a 40GE (gigabit rate) optical interface, and the core network interface is preferably a 10GE optical interface, although it is understood that the type of the first optical interface and the type of the core network interface may be other.
The baseband processing unit 10 further has a maintenance and monitoring function, and when applied to engineering, the PC (computer) accesses a debugging port of the baseband processing unit 10, and can set and check related parameters (such as carrier frequency setting, carrier bandwidth setting, output power, cell ID, initial value setting, template import, configuration information export, system upgrade, and the like) of the baseband processing unit 10, and can also automatically report alarm information and device status to an operator network management center. The baseband processing unit 10 can also be connected to a display through its VGA interface (VGA interface is a special interface for outputting data by using VGA standard for computer) to display the relevant information.
The expansion unit 20 includes a first digital processing module 21, a first power supply module 22, a power management module 23, a second optical port, a third optical port, and a remote power supply interface. The first power module 22 is connected to the first digital processing module 21 and the power management module 23, respectively, and is configured to supply power to the first digital processing module 21 and the power management module 23. The second optical port and the third optical port are respectively connected with the first digital processing module 21, and the third optical port is connected with the remote radio unit 30 through an optical fiber in a composite optical cable, so as to forward the received digital optical signal to the remote radio unit 30. The remote power supply interface is connected with the power management module 23 and connected with the remote radio unit 30 through a cable in the composite optical cable, so that power transmission to the remote radio unit 30 is realized, and remote power supply to the remote radio unit 30 is realized.
When a plurality of expansion units 20 are cascaded, assuming that 4 expansion units 20 are sequentially cascaded in a networking manner as shown in fig. 2, at this time, the first expansion unit 20, the second expansion unit 20, and the third expansion unit 20 further include connection optical ports respectively, and the connection optical ports are connected to the corresponding first digital processing modules 21. The second optical port of the first extension unit 20 is connected to the first optical port of the baseband processing unit 10 through an optical fiber, so that data transmission between the baseband processing unit 10 and the first extension unit 20 can be realized. The connection optical port of the first expansion unit 20 is connected to the second optical port of the second expansion unit 20 through an optical fiber, so that data transmission between the first expansion unit 20 and the second expansion unit 20 can be realized. The connection optical port of the second expansion unit 20 is connected to the second optical port of the third expansion unit 20 through an optical fiber, so that data transmission between the second expansion unit 20 and the third expansion unit 20 can be realized. The connection optical port of the third expansion unit 20 is connected to the second optical port of the fourth expansion unit 20 through an optical fiber, so that data transmission between the third expansion unit 20 and the fourth expansion unit 20 can be realized.
In the downlink, the first digital processing module 21 is used to perform data splitting and forwarding on the received digital optical signal.
In the uplink, the first digital processing module 21 is configured to combine and forward the received digital optical signals.
The power management module 23 has functions of short-circuit protection, overcurrent protection, and the like, and supports remote power supply state display to realize remote power supply control of the radio remote unit 30. The power management module 23 transmits power to the remote radio unit 30 through the remote power supply interface and the cable in the composite optical cable, so as to remotely supply power to the remote radio unit 30.
The respective light ports of the extension unit 20, the remote power supply state, and the like are displayed by the corresponding indicator lamps of the extension unit 20.
The number of the second optical ports and the number of the connection optical ports are usually one, the number of the third optical ports determines the number of the radio remote units 30 connected to the extension unit 20, and the number of the remote power supply interfaces corresponds to the number of the third optical ports. The types of the second optical port, the connection optical port, and the third optical port may be the same as the type of the first optical port of the baseband processing unit 10, such as a 40GE optical port, a 10GE optical port, or the like, or may be different.
The remote radio unit 30 includes a second digital processing module 31, a second power module 32, a power amplifier module 33, a fourth optical port, an antenna interface, and a power interface. The second digital processing module 31 is respectively connected with the second power module 32 and the power amplifier module 33. The second power module 32 is connected to the power amplifier module 33. The second power module 32 is used for supplying power to the second digital processing module 31 and the power amplifier module 33. The fourth optical port is connected to the second digital processing module 31 and the third optical port of the expansion unit 20 through an optical fiber in the composite optical cable, so as to receive the digital optical signal output by the expansion unit 20. The antenna interface is connected to the power amplifier module 33 and is used to connect to the antenna 60 through a feeder (antenna feed system). The power interface is connected to the second power module 32 and connected to the remote power interface of the extension unit 20 through a cable in the composite optical cable, so that the remote power supply of the remote radio unit 30 can be realized through the extension unit 20.
In the downlink, the second digital processing module 31 is configured to perform digital-to-analog conversion, filtering, and other processing on the digital optical signal received through the fourth optical port, so as to form a radio frequency signal. The power amplifier module 33 is configured to perform analog downlink signal linear amplification and other processing on the radio frequency signal processed by the second digital processing module 31, so as to output the radio frequency signal to the antenna 60 through the antenna interface, and radiate electromagnetic waves with 5G signals to a designated area through the antenna 60, thereby completing coverage of the 5G wireless network.
In the uplink, the power amplifier module 33 is configured to perform analog uplink signal amplification and other processing on the radio frequency signal received through the antenna interface. The second digital processing module 31 is configured to perform analog-to-digital conversion, filtering, and the like on the radio frequency signal processed by the power amplifier module 33, so as to form a digital optical signal, and transmit the digital optical signal to the expansion unit 20 through the fourth optical port and the optical fiber in the composite optical cable, so as to finally output the digital optical signal to the 5G core network 40.
The number of the fourth optical ports and the power supply interface is usually one, and the number of the antenna interfaces determines the number of the antennas 60 connected to the remote rf unit 30. The type of the fourth optical port is the same as that of the third optical port of the extension unit 20, such as a 40GE optical port, a 10GE optical port, etc., and may be different.
The radio remote unit 30 further supports 1 OMT (operation & main terminal local) local debugging port and a POE (Power Over Ethernet, Power supply system based on local area network) port, and can implement setting of relevant parameters and access to the Ethernet Power supply system. The working state of the remote radio unit 30 can be checked according to the state indicator lamp.
The above examples merely represent preferred embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications, such as combinations of different features in various embodiments, may be made without departing from the spirit of the invention, and these are within the scope of the invention.
Claims (10)
1. A 5G wireless network communication system, characterized by: the system comprises a baseband processing unit, an extension unit connected with the baseband processing unit and a radio remote unit connected with the extension unit, wherein the baseband processing unit is used for being connected with a 5G core network and a GPS module, and the radio remote unit is used for being connected with an antenna;
in a downlink, the baseband processing unit is configured to process, after clock synchronization is completed through the GPS module, IP packet data output by the 5G core network into a digital optical signal, and output the digital optical signal to the extension unit, where the extension unit is configured to forward the received digital optical signal to the radio remote unit, and the radio remote unit is configured to process the received digital optical signal into a radio frequency signal, and output the radio frequency signal to the antenna;
in an uplink, the radio remote unit is configured to process a radio frequency signal output by the antenna into a digital optical signal and output the digital optical signal to the extension unit, the extension unit is configured to forward the received digital optical signal to the baseband processing unit, and the baseband processing unit is configured to process the received digital optical signal into a baseband signal and convert the baseband signal into IP packet data and output the IP packet data to the 5G core network.
2. The 5G wireless network communication system according to claim 1, wherein: the base band processing unit is connected with the extension unit through an optical fiber, the extension unit is connected with the radio remote unit through a composite optical cable, the composite optical cable comprises an optical fiber and a cable, and the extension unit is further used for remotely supplying power to the radio remote unit.
3. The 5G wireless network communication system according to claim 1, wherein: the baseband processing unit is connected with the extension unit through an optical fiber, the extension unit is connected with the remote radio unit through a cable and an optical fiber, and the extension unit is further used for remotely supplying power to the remote radio unit.
4. The 5G wireless network communication system according to claim 1, wherein: the base band processing unit is one, the number of the extension units is N, the N extension units are sequentially connected in series, the base band processing unit is connected with the first extension unit, and each extension unit is respectively connected with the M radio remote units.
5. The 5G wireless network communication system according to claim 1, wherein: the number of the baseband processing units is one, the number of the extension units is N, the N extension units are respectively connected with the baseband processing units, and each extension unit is respectively connected with the M radio remote units.
6. The 5G wireless network communication system according to claim 1, wherein: the base band processing unit is one, the number of the extension units is N, and in the N extension units, a part of the extension units are sequentially connected in series, the first extension unit is connected with the base band processing unit, the rest of the N extension units are respectively connected with the base band processing unit, and each extension unit is respectively connected with the M remote radio units.
7. The 5G wireless network communication system according to claim 1, wherein: the baseband processing unit comprises a first optical port, a core network interface, a GPS interface, an X86 server, and an FEC card, an FH card and a clock card which are respectively connected with an X86 server, wherein the first optical port is connected with the FH card, the core network interface is connected with the X86 server and is used for being connected with the 5G core network, and the GPS interface is connected with the clock card and is used for being connected with the GPS module.
8. The 5G wireless network communication system according to claim 1, wherein: the expansion unit comprises a first digital processing module, a first power supply module, a power management module, a second optical port, a third optical port and a remote power supply interface, wherein the first power supply module is respectively connected with the first digital processing module and the power management module, the second optical port and the third optical port are respectively connected with the first digital processing module, and the remote power supply interface is connected with the power management module.
9. The 5G wireless network communication system according to claim 1, wherein: the remote radio unit comprises a second digital processing module, a second power module and a power amplifier module, wherein the second digital processing module is respectively connected with the second power module and the power amplifier module, and the second power module is connected with the power amplifier module.
10. The 5G wireless network communication system according to claim 9, wherein: the radio frequency remote unit further comprises a fourth optical port, an antenna interface and a power supply interface, wherein the fourth optical port is connected with the second digital processing module, the antenna interface is connected with the power amplifier module and is used for being connected with the antenna, and the power supply interface is connected with the second power supply module.
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